Text

License Termination Plan Groundwater Compliance Summary Report, July 2007, Rev. 1, Volume 2 of 2
	ML072060517
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	07/31/2007
From:	; Connecticut Yankee Atomic Power Co
To:	; NRC/FSME
References
	CY-07-107
	Download: ML072060517 (518)
	v • d • e

License Termination Plan Groundwater Compliance Summary Report Connecticut Yankee Atomic Power Company Haddam Neck Plant Prepared By Connecticut Yankee Atomic Power Company 362 Injun Hollow Road East Hampton, CT 06424-3099 July 2007, Rev. 1 Volume 2 of 2

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Trend Analysis - Cesium-137 Q4 2005 through June 2007

0 Cs-I 37 0~

c 0

CD o ( C) C, 0 0

o C0 C) 0C00 0o 0 0 0Q 2-5 LO0(NC 0 CM No MN- C.O Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: ATW1 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level Xj Xk (Xj - Xk)/(j-k) Q ND<3.37 U (2/17/2006 a) ND<5.16 U (1/10/2006 a) (3.37 - 5.16)/(2 - 1) -1.79 ND<3.71 U (3/20/2006 a) ND<5.16 U (1/10/2006 a) (3.71 - 5.16)/(3 - 1) -0.725 ND<5.48 U (4/13/2006 a) ND<5.16 U (1/10/2006 a) (5.48- 5.16)/(4- 1) 0.106667 ND<5.5 OK (5/12/2006 a) ND<5.16 U (1/10/2006 a) (5.5- 5.16)/(5 - 1) 0.085 ND<2.82 OK (7/16/2006 a) ND<5.16 U (1/10/2006 a) (2.82- 5.16)/(6 - 1) -0.468 ND<4.05 OK (7/18/2006 a) ND<5.16 U (1/10/2006 a) (4.05 - 5.16)/(7 - 1) -0.185 ND<3.3 OK (10/10/2006 a) ND<5.16 U (1/10/2006 a) (3.3- 5.16)/(8 - 1) -0.265714 ND<3.46 OK (1/2/2007 a) ND<5.16 U (1/10/2006 a) (3.46- 5.16)/(9 - 1) -0.2125 ND<3.55 OK (3/13/2007 a) ND<5.16 U (1/10/2006 a) (3.55- 5.16)/(10 - 1) -0.178889 ND<4.18 OK (6/13/2007 a) ND<5.16 U (1/10/2006 a) (4.18- 5.16)/(11 - 1) -0.098 ND<3.71 U.(3/20/2006 a) ND<3.37 U (2/17/2006 a) (3.71 - 3.37)/(3 - 2) 0.34 ND<5.48 U (4/13/2006 a) ND<3.37 U (2/17/2006 a) (5.48 - 3.37)/(4 - 2) 1.055 ND<5.5 OK (5/12/2006 a) ND<3.37 U (2/17/2006 a) (5.5 - 3.37)/(5 - 2) 0.71 ND<2.82 OK (7/16/2006 a) ND<3.37 U (2/17/2006 a) (2.82 - 3.37)/(6 - 2) -0.1375 ND<4.05 OK (7/18/2006 a) ND<3.37 U (2/17/2006 a) (4.05 - 3.37)/(7 - 2) 0.136

. ND<3.3 OK (10/10/2006 a)

ND<3.46 OK (1/2/2007 a)

ND<3.55 OK (3/13/2007 a)

ND<3.37 ND<3.37 ND<3.37 U (2/17/2006 U (2/17/2006 U (2/17/2006 a) a)

a)

(3.3 - 3.37)/(8 - 2)

(3.46 - 3.37)/(9 - 2)

(3.55 - 3.37)/(10- 2)

-0.0116667 0.0128571 0.0225 ND<4.1 8 OK (6/13/2007 a) ND<3.37 U (2/17/2006 a) (4.18- 3.37)/(11 - 2) 0.09 ND<5.48 U (4/13/2006 a) ND<3.71 U (3/20/2006 a) (5.48 - 3.71)/(4- 3) 1.77 ND<5.5 OK (5/12/2006 a) ND<3.71 U (3/20/2006 a) (5.5- 3.71)/(5- 3) 0.895 ND<2.82 OK (7/16/2006 a) ND<3.71 U (3/20/2006 a) (2.82- 3.71)/(6 - 3) -0.296667 ND<4.05 OK (7/18/2006 a) ND<3.71 U (3/20/2006 a) (4.05 - 3.71)/(7 - 3) 0.085 ND<3.3 OK (10/10/2006 a) ND<3.71 U (3/20/2006 a) (3.3- 3.71)/(8 - 3) -0.082 ND<3.46 OK (1/2/2007 a) ND<3.71 U (3/20/2006 a) (3.46 - 3.71)/(9 - 3) -0.0416667 ND<3.55 OK (3/13/2007 a) ND<3.71 U (3/20/2006 a) (3.55 - 3.71 )/(10 - 3) -0.0228571 ND<4.18 OK (6/13/2007 a) ND<3.71 U (3/20/2006 a) (4.18- 3.71)/(11 - 3) 0.05875 ND<5.5 OK (5/12/2006 a) ND<5.48 U (4/13/2006 a) (5.5 - 5.48)/(5 - 4) 0.02 ND<2.82 OK (7/16/2006 a) ND<5.48 U (4/13/2006 a) (2.82 - 5.48)/(6 - 4) -1.33 ND<4.05 OK (7/18/2006 a) ND<5.48 U (4/13/2006 a) (4.05 - 5.48)/(7 - 4) -0.476667 ND<3.3 OK (10/10/2006 a) ND<5.48 U (4/13/2006 a) (3.3 - 5.48)/(8 - 4) -0.545 ND<3.46 OK (1/2/2007 a) ND<5.48 U (4/13/2006 a) (3.46 - 5.48)/(9 - 4) -0.404 ND<3.55 OK (3/13/2007 a) ND<5.48 U (4/13/2006 a) (3.55 - 5.48)/(10 - 4) -0.321667 ND<4.18 OK (6/13/2007 a) ND<5.48 U (4/13/2006 a) (4.18 - 5.48)/(11 - 4) -0.185714 ND<2.82 OK (7/16/2006 a) ND<5.5 OK (5/12/2006 a) (2.82 - 5.5)/(6 - 5) -2.68 ND<4.05 OK (7/18/2006 a) ND<5.5 OK (5/12/2006 a) (4.05 - 5.5)/(7 - 5) -0.725 ND<3.3 OK (10/10/2006 a) ND<5.5 OK (5/12/2006 a) (3.3 - 5.5)/(8 - 5) -0.733333 ND<3.46 OK (1/2/2007 a) ND<5.5 OK (5/12/2006 a) (3.46 - 5.5)/(9 - 5) -0.51 ND<3.55 OK (3/13/2007 a) ND<5.5 OK (5/12/2006 a) (3.55 - 5.5)/(10- 5) -0.39 ND<4.18 OK (6/13/2007 a) ND<5.5 OK (5/12/2006 a) (4.18 - 5.5)/(11 - 5) -0.22

. ND<4.05 OK (7/18/2006 a)

ND<3.3 OK (10/10/2006 a)

ND<2.82 OK (7/16/2006 a)

(4.05 - 2.82)/(7 - 6)

(3.3 - 2.82)/(8 - 6) 1.23 0.24 Page 1

ND<2.82 OK (7/16/2006 a) (3.46 - 2.82)/(9 - 6) 0.213333

. ND<3.55 OK (3/13/2007 a)

ND<3.46 OK (1/2/2007 a)

ND<4.18 OK (6/13/2007 a)

ND<2.82 OK (7/16/2006 a)

(3.55- 2.82)/(10- 6)

(4.18 - 2.82)/(11 - 6) 0.1825 0.272 ND<3.3 OK (10/10/2006 a) ND<4.05 OK (7/18/2006 a) (3.3 - 4.05)/(8 - 7) -0.75 ND<3.46 OK (1/2/2007 a) ND<4.05 OK (7/18/2006 a) (3.46 - 4.05)/(9 - 7) -0.295 ND<3.55 OK (3/13/2007 a) ND<4.05 OK (7/18/2006 a) (3.55 - 4.05)/(10 - 7) -0.166667 ND<4.18 OK (6/13/2007 a) ND<4.05 OK (7/18/2006 a) (4.18- 4.05)/(11 - 7) 0.0325 ND<3.46 OK (1/2/2007 a) ND<3.3 OK (10/10/2006 a) (3.46 3.3)/(9 - 8) 0.16 ND<3.55 OK (3/13/2007 a) ND<3.3 OK (10/10/2006 a) (3.55 - 3.3)/(10 - 8) 0.125 ND<4.18 OK (6/13/2007 a) ND<3.3 OK (10/10/2006 a) (4.18- 3.3)/(11 - 8) 0.293333 (3.55 - 3.46)/(10 - 9) 0.09 ND<3.55 OK (3/13/2007 a) ND<3.46 OK (1/2/2007 a)

ND<4.18 OK (6/13/2007 a) ND<3.46 OK (1/2/2007 a) (4.18- 3.46)/(11 -9) 0.36 ND<4.18 OK (6/13/2007 a) ND<3.55 OK (3/13/2007 a) (4.18- 3.55)/(11 -10) 0.63 Number of Q values = 55 Ordered Q Values n a 1 -2.68 2 -1.79 3 -1.33 4 -0.75 5 -0.733333 6 -0.725 7 -0.725 8 -0.545

-0.51 9

10 -0.476667 11 -0.468 12 -0.404 13 -0.39 14 -0.321667 15 -0.296667 16 -0.295 17 -0.265714 18 -0.22 19 -0.2125 20 -0.185714 21 -0.185 22 -0.178889 23 -0.166667 24 -0.1375 25 -0.098 26 -0.082 27 -0.0416667 28 -0.0228571 29 -0.0116667 30 0.0128571

.l 31 32 33 0.02 0.0225 0.0325 34 0.05875 Page 2

35 0.085 36 0.085 37 0.09 38 0.09 39 0.106667 40 0.125 41 0.136 42 0.16 43 0.1825 44 0.213333 45 0.24 46 0.272 47 0.293333 48 0.34 49 0.36 50 0.63 51 0.71 52 0.895 53 1.055 54 1.23 55 1.77 Sen's Estimator (Median Q) is -0.0228571 Time Period Observations 1/10/2006 1 2/17/2006 1 3/20/2006 1 4/13/2006 1 5/12/2006 1 7/16/2006 1 7/18/2006 1 10/10/2006 1 1/2/2007 1 3/13/2007 1 6/13/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.265714 = Q(17)

Upper limit is 0.106667 = Q(39)

-0.265714 < 0 < 0.106667 indicating no trend in data.

Page 3

0 Cs-1 37 C) 0 0

0 C0

0 o (0 0 0 0 0 C.-

0 o 0 00 0 0 0

0, (N (0

(0 Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW100D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<2.58 U (3/18/2006 a) ND<2.9 U (1/9/2006 a) (2.58 - 2.9)/(2 - 1) -0.32 ND<3.665 U (4/4/2006 -) ND<2.9 U (1/9/2006 a) (3.665 - 2.9)/(3 - 1) 0.3825 ND<3.71 U (4/19/2006 a) ND<2.9 U (1/9/2006 a) (3.71 - 2.9)/(4 - 1) 0.27 ND<4.1 OK (5/4/2006 a) ND<2.9 U (1/9/2006 a) (4.1 - 2.9)/(5 - 1) 0.3 ND<3.01 OK (7/19/2006 a) ND<2.9 U (1/9/2006 a) (3.01 - 2.9)/(6 - 1) 0.022 ND<2.97 OK (10/4/2006 a) ND<2.9 U (1/9/2006 a) (2.97 - 2.9)/(7 - 1) 0.0116667 ND<4.4 OK (1/5/2007 a) ND<2.9 U (1/9/2006 a) (4.4 - 2.9)/(8 - 1) 0.214286 ND<4.69 OK (3/19/2007 a) ND<2.9 U (1/9/2006 a) (4.69 - 2.9)/(9 - 1) 0.22375 ND<6.02 OK (6/8/2007 a) ND<2.9 U (1/9/2006 a) (6.02- 2.9)/(10 - 1) 0.346667 ND<3.665 U (4/4/2006 ~) ND<2.58 U (3/18/2006 a) (3.665 - 2.58)/(3 - 2) 1.085 ND<3.71 U (4/19/2006 a) ND<2.58 U (3/18/2006 a) (3.71 - 2.58)/(4 - 2) 0.565 ND<4.1 OK (5/4/2006 a) ND<2.58 U (3/18/2006 a) (4.1 - 2.58)/(5 - 2) 0.506667 ND<3.01 OK (7/19/2006 a) ND<2.58 U (3/18/2006 a) (3.01 - 2.58)/(6 - 2) 0.1075 ND<2.97 OK (10/4/2006 a) ND<2.58 U (3/18/2006 a) (2.97 - 2.58)/(7 - 2) 0.078 ND<4.4 OK (1/5/2007 a) ND<2.58 U (3/18/2006 a) (4.4 - 2.58)/(8 - 2) 0.303333 ND<4.69 OK (3/19/2007 a) ND<2.58 U (3/18/2006 a) (4.69 - 2.58)/(9 - 2) 0.301429 ND<6.02 OK (6/8/2007 a) ND<2.58 U (3/18/2006 a) (6.02 - 2.58)/(10 - 2) 0.43 ND<3.71 U (4/19/2006 a) ND<3.665 U (4/4/2006 ~) (3.71 - 3.665)/(4 - 3) 0.045 ND<4.1 OK (5/4/2006 a) ND<3.665 U (4/4/2006 ~) (4.1 - 3.665)/(5 - 3) 0.2175 ND<3.01 OK (7/19/2006 a) ND<3.665 U (4/4/2006 ~) (3.01 - 3.665)/(6 - 3) -0.218333 ND<2.97 OK (10/4/2006 a) ND<3.665 U (4/4/2006 ~) (2.97 - 3.665)/(7 - 3) -0.17375 ND<4.4 OK (1/5/2007 a) ND<3.665 U (4/4/2006 ~) (4.4 - 3.665)/(8 - 3) 0.147 ND<4.69 OK (3/19/2007 a) ND<3.665 U (4/4/2006 ~) (4.69 - 3.665)/(9 - 3) 0.170833 ND<6.02 OK (6/8/2007 a) ND<3.665 U (4/4/2006 ~) (6.02 - 3.665)/(10 - 3) 0.336429 ND<4.1 OK (5/4/2006 a) ND<3.71 U (4/19/2006 a) (4.1 - 3.71)/(5- 4) 0.39 ND<3.01 OK (7/19/2006 a) ND<3.71 U (4/19/2006 a) (3.01 - 3.71)/(6- 4) -0.35 ND<2.97 OK (10/4/2006 a) ND<3.71 U (4/19/2006 a) (2.97- 3.71)/(7- 4) -0.246667 ND<4.4 OK (1/5/2007 a) ND<3.71 U (4/19/2006 a) (4.4- 3.71)/(8- 4) 0.1725 ND<4.69 OK (3/19/2007 a) ND<3.71 U (4/19/2006 a) (4.69- 3.71)/(9- 4) 0.196, ND<6.02 OK (6/8/2007 a) ND<3.71 U (4/19/2006 a) (6.02- 3.71)/(10- 4) 0.385 ND<3.01 OK (7/19/2006 a) ND<4.1 OK (5/4/2006 a) (3.01 - 4.1)/(6- 5) -1.09 ND<2.97 OK (10/4/2006 a) ND<4.1 OK (5/4/2006 a) (2.97- 4.1)/(7- 5) -0.565 ND<4.4 OK (1/5/2007 a) ND<4.1 OK (5/4/2006 a) (4.4- 4.1)/(8- 5) 0.1 ND<4.69 OK (3/19/2007 a) ND<4.1 OK (5/4/2006 a) (4.69- 4.1)/(9- 5) 0.1475 ND<6.02 OK (6/8/2007 a) ND<4.1 OK (5/4/2006 a) (6.02 - 4.1)/(10- 5) 0.384 ND<2.97 OK (10/4/2006 a) ND<3.01 OK (7/19/2006 a) (2.97 - 3.01)/(7 - 6) -0.04 ND<4.4 OK (1/5/2007 a) ND<3.01 OK (7/19/2006 a) (4.4 - 3.01)/(8 - 6) 0.695 ND<4.69 OK (3/19/2007 a) ND<3.01 OK (7/19/2006 a) (4.69 - 3.01)/(9 - 6) 0.56 ND<6.02 OK (6/8/2007 a) ND<3.01 OK (7/19/2006 a) (6.02- 3.01)/(10- 6) 0.7525 ND<2.97 OK (10/4/2006 a)

ND<4.4 OK (1/5/2007 a) (4.4 - 2.97)/(8 - 7) 1.43 ND<4.69 OK (3/19/2007 a) ND<2.97 OK (10/4/2006 a) (4.69 - 2.97)/(9 - 7) 0.86 Page 1

ND<6.02 OK (6/8/2007 a) N D<2.97 OK (10/4/2006 a) (6.02 - 2.97)/(10 -7) 1.01667 ND<4.69 OK (3/19/2007 a) ND<4.4 OK (1/5/2007 a) (4.69 - 4.4)/(9 - 8) 0.29 ND<6.02 OK (6/8/2007 a) ND<4.4 OK (1/5/2007 a) (6.02 - 4.4)/(10 - 8) 0.81 ND<6.02 OK (6/8/2007 a) ND<4.69 OK (3/19/2007 a) (6.02 - 4.69)/(10 - 9) 1.33 Number of Q values = 45 Ordered 0 Values n Q 1 -1.09 2 -0.565 3 -0.35 4 -0.32 5 -0.246667 6 -0.218333 7 -0.17375 8 -0.04 9 0.0116667 10 0.022 11 0.045 12 0.078 13 0.1 14 0.1075

. 15 16 17 0.147 0.1475 0.170833 18 0.1725 19 0.196 20 0.214286 21 0.2175 22 0.22375 23 0.27 24 0.29 25 0.3 26 0.301429 27 0.303333 28 0.336429 29 0.346667 30 0.3825 31 0.384 32 0.385 33 0.39 34 0.43 35 0.506667 36 0.56 37 0.565 38 0.695 39 0.7525 40 0.81 41 0.86 42 1.01667 43 1.085 44 '11.33 45 1.43 Page 2

O Sen's Estimator (Median Q) is 0.27 Time Period Observations 1/9/2006 1 3/18/2006 1 4/4/2006 1 4/19/2006 1 5/4/2006 1 7/19/2006 1 10/4/2006 1 1/5/2007 1 3/19/2007 1 6/8/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F =0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 =.1.64485 C = 18.39

M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is 0.1 = Q(13)

Upper limit is 0.39 = Q(33) 0.1 > 0 indicating an upward trend in data.

Page 3

0 Cs-1 37 0.

C-)

(0 0

(D (0 0 0 (0 0 0 0 0 0C" C), 0 r'- 0 0* 00 c',J ct) (0-Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW100S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.73 U (2/9/2006 a) ND<3.9 U (1/9/2006 a) (3.73 - 3.9)/(2 - 1) -0.17 ND<3.02 U (3/18/2006 a) ND<3.9 U (1/9/2006 a) (3.02 - 3.9)/(3 - 1) -0.44 ND<4.51 U (4/13/2006 a) ND<3.9 U (1/9/2006 a) (4.51 - 3.9)/(4 - 1) 0.203333 ND<3.2 OK (5/4/2006 a) ND<3.9 U (1/9/2006 a) (3.2 - 3.9)/(5 - 1) -0.175 ND<3.79 OK (7/19/2006 a) ND<3.9 U (1/9/2006 a) (3.79 - 3.9)/(6 - 1) -0.022 ND<3.77 OK (10/4/2006 a) ND<3.9 U (1/9/2006 a) (3.77 - 3.9)/(7 - 1). -0.0216667 ND<2.95 OK (1/2/2007 a) ND<3.9 U (1/9/2006 a) (2.95- 3.9)/(8 - 1) -0.135714 ND<3.91 OK (3/19/2007 a) ND<3.9 U (1/9/2006 a) (3.91 - 3.9)/(9 - 1) 0.00125 ND<6.01 OK (6/8/2007 a) ND<3.9 U (1/9/2006 a) (6.01 - 3.9)/(10 - 1) 0.234444 ND<3.02 U (3/18/2006 a) ND<3.73 U (2/9/2006 a) (3.02 - 3.73)/(3 - 2) -0.71 ND<4.51 U (4/13/2006 a) ND<3.73 U (2/9/2006 a) (4.51 - 3.73)/(4 - 2) 0.39 ND<3.2 OK (5/4/2006 a) ND<3.73 U (2/9/2006 a) (3.2 - 3.73)/(5 - 2) -0.176667 ND<3.79 OK (7/19/2006 a) ND<3.73 U (2/9/2006 a) (3.79 - 3.73)/(6 - 2) 0.015 ND<3.77 OK (10/4/2006 a) ND<3.73 U (2/9/2006 a) (3.77 3.73)/(7 - 2) 0.008 ND<2.95 OK (1/2/2007 a) ND<3.73 U (2/9/2006 a) (2.95 - 3.73)/(8 - 2) -0.13 ND<3.91 OK (3/19/2007 a) ND<3.73 U (2/9/2006 a) (3.91 - 3.73)/(9 - 2) 0.0257143 ND<6.01 OK (6/8/2007 a) ND<3.73 U (2/9/2006 a) (6.01 - 3.73)/(10 - 2) 0.285 ND<4.51 U (4/13/2006 a) ND<3.02 U (3/18/2006 a) (4.51 - 3.02)/(4 - 3) 1.49 ND<3.2 OK (5/4/2006 a) ND<3.02 U (3/18/2006 a) (3.2 - 3.02)/(5 - 3) .0.09 ND<3.79 OK (7/19/2006 a) ND<3.02 U (3/18/2006 a) (3.79 - 3.02)/(6 - 3) 0.256667 ND<3.77 OK (10/4/2006 a) ND<3.02 U (3/18/2006 a) (3.77 - 3.02)/(7 - 3) 0.1875 ND<2.95 OK (1/2/2007 a) ND<3.02 U (3/18/2006 a) (2.95 - 3.02)/(8 - 3) -0.014 ND<3.91 OK (3/19/2007 a) ND<3.02 U (3/18/2006 a) (3.91 - 3.02)/(9 - 3) 0.148333 ND<6.01 OK (6/8/2007 a) ND<3.02 U (3/18/2006 a) (6.01 - 3.02)/(10 - 3) 0.427143 ND<3.2 OK (5/4/2006 a) ND<4.51 U (4/13/2006 a) (3.2 - 4.51)/(5 - 4) -1.31 ND<3.79 OK (7/19/2006 a) ND<4.51 U (4/13/2006 a) (3,79 - 4.51)/(6 - 4) -0.36 ND<3.77 OK (10/4/2006 a) ND<4.51 U (4/13/2006 a) (3.77 - 4.51)/(7 - 4); -0.246667 ND<2.95 OK (1/2/2007 a) ND<4.51 U (4/13/2006 a) (2.95 - 4.51)/(8 - 4) -0.39 ND<3.91 OK (3/19/2007 a) ND<4.51 U (4/13/2006 a) (3.91 - 4.51)/(9 - 4) -0.12 ND<6.01 OK (6/8/2007 a) ND<4.51 U (4/13/2006 a) (6.01 - 4.51 )/(10- 4) 0.25 ND<3.79 OK (7/19/2006 a) ND<3.2 OK (5/4/2006 a) (3.79 - 3.2)/(6 - 5) 0.59 ND<3.77 OK (10/4/2006 a) ND<3.2 OK (5/4/2006 a) (3.77 - 3.2)/(7 - 5) 0.285 ND<2.95 OK (1/2/2007 a) ND<3.2 OK (5/4/2006 a) (2.95 - 3.2)/(8 - 5) -0.0833333 ND<3.91 OK (3/19/2007 a) ND<3.2 OK (5/4/2006 a) (3.91 - 3.2)/(9 - 5) 0.1775 ND<6.01 OK (6/8/2007 a) ND<3.2 OK (5/4/2006 a) (6.01 - 3.2)/(10 - 5) 0.562 ND<3.77 OK (10/4/2006 a) ND<3.79 OK (7/19/2006 a) (3.77 - 3.79)/(7 - 6) -0.02 ND<2.95 OK (1/2/2007 a) ND<3.79 OK (7/19/2006 a) (2.95 - 3.79)/(8 - 6) -0.42 ND<3.91 OK (3/19/2007 a) ND<3.79 OK (7/19/2006 a) (3.91 - 3.79)/(9 - 6) 0.04 ND<6.01 OK (6/8/2007 a) ND<3.79 OK (7/19/2006 a) (6.01 - 3.79)/(10 - 6) 0.555 ND<2.95 OK (1/2/2007 a) ND<3.77 OK (10/4/2006 a) (2.95 - 3.77)/(8 - 7) -0.82 ND<3.91 OK (3/19/2007 a) ND<3.77 OK (10/4/2006 a) (3.91 - 3.77)/(9 - 7) 0.07 Page 1

ND<6.01 OK (6/8/2007 a) ND<3.77 OK (10/4/2006 a) (6.01 - 3.77)/(10 - 7) 0.746667 ND<3.91 OK (3/19/2007 a) ND<2.95 OK (1/2/2007 a) (3.91 - 2.95)/(9 - 8) 0.96 ND<6.01 OK (6/8/2007 a) ND<2.95 OK (1/2/2007 a) (6.01 - 2.95)/(10 - 8) 1.53 ND<6.01 OK (6/8/2007 a) ND<3.91 OK (3/19/2007 a) (6.01 - 3.91)/(10 - 9) 2.1 Number of Q values = 45 Ordered Q Values n Q

-1.31 2 -0.82 3 -0.71 4 -0.44 5 -0.42 6 -0.39 7 -0.36 8 -0.246667 9 -0.176667 10 -0.175 11 -0.17 12 -0.135714 13 -0.13 14 -0.12 15 -0.0833333

. 16 70.022 17 -0.0216667 18 -0.02 19 -0.014 20 0.00125 21 0.008 22 0.015 23 0.0257143 24 0.04 25 0.07 26 0.09 27 0.148333 28 0.1775 29 0.1.875 30 0.203333 31 0.234444 32 0.25

33. 0.256667 34 0.285 35 0.285 36 0.39 37 0.427143 38 0.555 39 0.562 40 0.59 41 0.746667 42 0.96 43 1.49 44 1.53 45 2.1 Page 2

O Sen's Estimator (Median Q) is 0.0257143 Time Period Observations 1/9/2006 1 2/9/2006 1 3/18/2006 1 4/13/2006 1 5/4/2006 1 7/19/2006 1 10/4/2006 1 1/2/2007 1 3/19/2007 1 6/8/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a =2250 b =6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485

. C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.13 = Q(13)

Upper limit is 0.256667 = Q(33)

-0.13 < 0 < 0.256667 indicating no trend in data.

Page 3

0 S Cs-1 37 Time-Series Graph of MW101D 5

)

4 0

3 0

2 A

i CD CO Co cod C, 0 r--

0C,. N-0 0 0 0 0 0 N-0 0 CN 0 0 C- 0 0 C, CN C, Cý (N C)

CD Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW101 D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a ND<3.2 U (2/24/2006 a) ND<2.45 U (1/10/2006 a) (3.2 - 2.45)/(2 - 1) 0.75 ND<6 OK (4/7/2006 a) ND<2.45 U (1/10/2006 a) (6- 2.45)/(3 - 1) 1.775 ND<3.81 U (4/19/2006 a) ND<2.45 U (1/10/2006 a) (3.81 - 2.45)/(4 - 1) 0.453333 ND<3.35 OK (5/18/2006 a) ND<2.45 U (1/10/2006 a) (3.35 - 2.45)/(5 - 1) 0.225 ND<3.33 OK (7/10/2006 a) ND<2.45 U (1/10/2006 a) (3.33 - 2.45)/(6 - 1) 0.176 ND<1.97 OK (10/4/2006 a) ND<2.45 U (1/10/2006 a) (1.97- 2.45)/(7.- 1) -0.08 ND<2.79 OK (10/10/2006 a) ND<2.45 U (1/10/2006 a) (2.79 - 2.45)/(8 - 1) 0.0485714 ND<3.68 OK (1/3/2007 a) ND<2.45 U (1/10/2006 a) (3.68 - 2.45)/(9 - 1) 0.15375 ND<5.13 OK (3/15/2007 a) ND<2.45 U (1/10/2006 a) (5.13- 2.45)/(10 - 1) 0.297778 ND<4.42 OK (6/9/2007 a) ND<2.45 U (1/10/2006 a) (4.42 - 2.45)/(11 - 1) 0.197 ND<6 OK (4/7/2006 a) ND<3.2 U (2/24/2006 a) (6 - 3.2)/(3 - 2) 2.8 ND<3.81 U (4/19/2006 a) ND<3.2 U (2/24/2006 a) (3.81 - 3.2)/(4 - 2) 0.305 ND<3.35 OK (5/18/2006 a) ND<3.2 U (2/24/2006 a) (3.35 - 3.2)/(5 - 2) 0.05 ND<3;33 OK (7/10/2006 a) ND<3.2 U (2/24/2006 a) (3.33 - 3.2)/(6 - 2) 0.0325, ND<1.97 OK (10/4/2006 a) ND<3.2 U (2/24/2006 a) (1.97 - 3.2)/(7 - 2) -0.246

. ND<2.79 OK (10/10/2006 a)

ND<3.68 OK (1/3/2007 a)

ND<5.13 OK (3/15/2007 a)

ND<3.2 ND<3.2 ND<3.2 U (2/24/2006 U (2/24/2006 U (2/24/2006 a) a)

a)

(2.79 - 3.2)/(8 - 2)

(3.68 - 3.2)/(9 - 2)

(5.13 - 3.2)/(10- 2)

-0.0683333 0.0685714 0.24125 ND<4.42 OK (6/9/2007 a) ND<3.2 U (2/24/2006 a) (4.42 - 3.2)/(11 - 2) 0.135556 ND<3.81 U (4/19/2006 a) ND<6 OK (4/7/2006 a) (3.81 - 6)/(4 - 3) -2.19 ND<3.35 OK (5/18/2006 a) ND<6 OK (4/7/2006 a) (3.35 - 6)/(5 - 3) -1.325 ND<3.33 OK (7/10/2006 a) ND<6 OK (4/7/2006 a) (3.33 - 6)/(6 - 3) -0.89 ND<1.97 OK (10/4/2006 a) ND<6 OK (4/7/2006 a) (1.97 - 6)/(7 - 3) -1.0075 ND<2.79 OK (10/10/2006 a) ND<6 OK (4/7/2006 a) (2.79 - 6)/(8 - 3) -0.642 ND<3.68 OK (1/3/2007 a) ND<6 OK (4/7/2006 a) (3.68 - 6)/(9 - 3) -0.386667 ND<5.13 OK (3/15/2007 a) ND<6 OK (4/7/2006 a) (5.13- 6)/(10- 3) -0.124286 ND<4.42 OK (6/9/2007 a) ND<6 OK (4/7/2006 a) (4.42 - 6)/(11 - 3) -0.1975 ND<3.35 OK (5/18/2006 a) ND<3.81 U (4/19/2006 a) (3.35 - 3.81)/(5- 4) -0.46 ND<3.33 OK (7/10/2006 a) ND<3.81 U (4/19/2006 a) (3.33 - 3.81)/(6- 4) -0.24 ND<1.97 OK (10/4/2006 a) ND<3.81 U (4/19/2006 a) (1.97- 3.81)/(7- 4) -0.613333 ND<2.79 OK (10/10/2006 a) ND<3.81 U (4/19/2006 a) (2.79 - 3.81)/(8- 4) -0.255 ND<3.68 OK (1/3/2007 a) ND<3.81 U (4/19/2006 a) (3.68 - 3.81)/(9 - 4) -0.026 ND<5.13 OK (3/15/2007 a) ND<3.81 U (4/19/2006 a) (5.13 - 3.81)/(10 - 4) 0.22 ND<4.42 OK (6/9/2007 a) ND<3.81 U (4/19/2006 a) (4.42 - 3.81)/(11 - 4) 0.0871429 ND<3.33 OK (7/10/2006 a) ND<3.35 OK (5/18/2006 a) (3.33 - 3.35)/(6 - 5) -0.02 ND<1.97 OK (10/4/2006 a) ND<3.35 OK (5/18/2006 a) (1.97 - 3.35)/(7 - 5) -0.69 ND<2.79 OK (10/10/2006 a) ND<3.35 OK (5/18/2006 a) (2.79 - 3.35)/(8 - 5) -0.186667 ND<3.68 OK (1/3/2007 a) ND<3.35 OK (5/18/2006 a) (3.68 - 3.35)/(9 - 5) 0.0825 ND<5.13 OK (3/15/2007 a) ND<3.35 OK (5/18/2006 a) (5.13- 3.35)/(10- 5) 0.356 ND<4.42 OK (6/9/2007 a) ND<3.35 OK (5/18/2006 a) (4.42 - 3.35)/(11 - 5) 0.178333 ND<1.97 OK (10/4/2006 a) ND<3.33 OK (7/10/2006 a) (1.97- 3.33)/(7- 6) -1.36 ND<2.79 OK (10/10/2006 a) ND<3.33 OK (7/10/2006 a) (2.79 - 3.33)/(8 - 6) -0.27 Page 1

ND<3.33 OK (7/10/2006 a) (3.68 - 3.33)/(9 - 6) 0.116667 O ND<5.13 ND<3.68 OK (3/15/2007 (1/3/2007 a)a) ND<3.33 OK (7/10/2006 a) (5.13- 3.33)/(10- 6) 0.45 ND<4.42 OK (6/9/2007 a) ND<3.33 OK (7/10/2006 a) (4.42 - 3.33)/(11'- 6) 0.218 ND<2.79 OK (10/10/2006 a) ND<1.97 OK (10/4/2006 a) (2.79 - 1.97)/(8 - 7) 0.82 ND<3.68 OK (1/3/2007 a) ND<1.97 OK (10/4/2006 a) (3.68 - 1.97)/(9 - 7) 0.855 ND<5.13 OK (3/15/2007 a) ND<1.97 OK (10/4/2006 a) (5.13- 1.97)/(10 - 7) 1.05333 ND<4.42 OK (6/9/2007 a) ND<1.97 OK (10/4/2006 a) (4.42 - 1.97)/(11 - 7) 0.6125 ND<3.68 OK (1/3/2007 a) ND<2.79 OK (10/10/2006 a) (3.68 - 2.79)/(9 - 8) 0.89 ND<5.13 OK (3/15/2007 a) ND<2.79 OK (10/10/2006 a) (5.13- 2.79)/(10- 8) 1.17 ND<4.42 OK (6/9/2007 a) ND<2.79 OK (10/10/2006 a) (4.42 - 2.79)/(11 - 8) 0.543333 ND<5.13 OK (3/15/2007 a) ND<3.68 OK (1/3/2007 a) (5.13 - 3.68)/(10- 9) 1.45 ND<4.42 OK (6/9/2007 a) ND<3.68 OK (1/3/2007 a) (4.42 - 3.68)/(11 - 9) 0.37 ND<4.42 OK (6/9/2007 a) ND<5.13 OK (3/15/2007 a) (4.42- 5.13)/(11 - 10) -0.71 Number of Q values = 55 Ordered Q Values n Q 1 -2.19 2 -1.36 3 -1.325 4 -1.0075 5 -0.89 6 -0.71 7 -0.69 8 -0.642 9 -0.613333 10 -0.46 11 -0.386667 12 -0.27 13 -0.255 14 -0.246 -J 15 -0.24 16 -0.1975 17 -0.186667 18 -0.124286 19 -0.08 20 -0.0683333 21 -0.026 22 -0.02 23 0.0325 24 0.0485714 25 0.05 26 0.0685714 27 0.0825 28 0.0871429 29 0.116667 30 0.135556 S 31 32 33 0.15375 0.176 0.178333 34 0.197 Page 2

35 0.218 36 0.22 37 0.225 38 0.24125 39 0.297778 40 0.305 41 0.356 42 0.37 43 0.45 44 0.453333 45 0.543333 46 0.6125 47 0.75 48 0.82 49 0.855 50 0.89 51 1.05333 52 1.17 53 1.45 54 1.775 55 2.8 Sen's Estimatc r (Median Q) is 0.0871429 Time Period Observations 1/10/2006 1 2/24/2006 1 4/7/2006 1 4/19/2006 1 5/18/2006 1 7/10/2006 1 10/4/2006 1 10/10/2006 1 1/3/2007 1 3/15/2007 1 6/9/2007 1 There are 0 time periods with multiple data A=0 B =0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c =220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.186667 = Q(17)

Upper limit is 0.297778 = Q(39)

-0.186667 < 0 < 0.297778 indicating no trend in data.

Page 3

Cs-1 37 Time-Series Graph of MWIOIS 3

0 CL 0

0 1 0 (0 OO (o o'-

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW101S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<3.77 U (2/24/2006 a) ND<4.3 U (1/11/2006 a) (3.77 - 4.3)/(2 - 1) -0.53 ND<3.72 U (4/10/2006 a) ND<4.3 U (1/11/2006 a) (3.72 - 4.3)/(3 - 1) -0.29 ND<3.51 U (4/19/2006 a) ND<4.3 U (1/11/2006 a) (3.51 - 4.3)/(4 - 1) -0.263333 ND<3.56 OK (5/18/2006 a) ND<4.3 U (1/11/2006 a) (3.56 - 4.3)/(5- 1) -0.185 ND<3.13 OK (7/10/2006 a) ND<4.3 U (1/11/2006 a) (3.13 - 4.3)/(6 - 1) -0.234 ND<3.71 OK (10/10/2006 a) ND<4.3 U (1/11/2006 a) (3.71 - 4.3)/(7 - 1) -0.0983333 ND<3.17 OK (1/3/2007 -) ND<4.3 U (1/11/2006 a) (3.17- 4.3)/(8 - 1) -0.161429 ND<3.465 OK (3/15/2007 ~) ND<4.3 U (1/11/2006 a) (3.465 - 4.3)/(9 - 1) -0.104375 ND<4.17 OK (6/11/2007 a) ND<4.3 U (1/11/2006 a) (4.17- 4.3)/(10 - 1) -0.0144444 ND<3.72 U (4/10/2006 a) ND<3.77 U (2/24/2006 a) (3.72 - 3.77)/(3 - 2) -0.05 ND<3.51 U (4/19/2006 a) ND<3.77 U (2/24/2006 a) (3.51 - 3.77)/(4 - 2) -0.13 ND<3.56 OK (5/18/2006 a) ND<3.77 U (2/24/2006 a) (3.56 - 3.77)/(5 - 2) -0.07 ND<3.13 OK (7/10/2006 a) ND<3.77 U (2/24/2006 a) (3.13 - 3.77)/(6 - 2) -0.16 ND<3.71 OK (10/10/2006 a) ND<3.77 U (2/24/2006 a) (3.71 - 3.77)/(7 - 2) -0.012 ND<3.17 OK (1/3/2007 -) ND<3.77 U (2/24/2006 a) (3.17 - 3.77)/(8 - 2) -0.1 ND<3.465 OK (3/15/2007 ~) ND<3.77 U (2/24/2006 a) (3.465,- 3.77)/(9 - 2) -0.0435714 ND<4.17 OK (6/11/2007 a) ND<3.77 U (2/24/2006 a) (4.17- 3.77)/(10- 2) 0.05 ND<3.51 U (4/19/2006 a) ND<3.72 U (4/10/2006 a) (3.51 - 3.72)/(4 - 3) -0.21 ND<3.56 OK (5/18/2006 a) ND<3.72 U (4/10/2006 a) (3.56 - 3.72)/(5 - 3) -0.08 ND<3.13 OK (7/10/2006 a) ND<3.72 U (4/10/2006 a) (3.13- 3.72)/(6 - 3) -0.196667 ND<3.71 OK (10/10/2006 a) ND<3.72 U (4/10/2006 a) (3.71 - 3.72)/(7 - 3) -0.0025 ND<3.17 OK (1/3/2007 -) ND<3.72 U (4/10/2006 a) (3.17 - 3.72)/(8 - 3) -0.11 ND<3.465 OK (3/15/2007 ~) ND<3.72 U (4/10/2006 a) (3.465 - 3.72)/(9 - 3) -0.0425 ND<4.17 OK (6/11/2007 a) ND<3.72 U (4/10/2006 a) (4.17- 3.72)/(10- 3) 0.0642857 ND<3.56 OK (5/18/2006 a) ND<3.51 U (4/19/2006 a) (3.56 - 3.51)/(5 - 4) 0.05 ND<3.13 OK (7/10/2006 a) ND<3.51 U (4/19/2006 a) (3.13- 3.51)/(6- 4) -0.19 ND<3.71 OK (10/10/2006 a) ND<3.51 U (4/19/2006 a) (3.71 - 3.51)/(7 - 4) 0.0666667 ND<3.17 OK (1/3/2007 -) ND<3.51 U (4/19/2006 a) (3.17- 3.51)/(8- 4) -0.085 ND<3.465 OK (3/15/2007 ~) ND<3.51 U (4/19/2006 a) (3.465 - 3.51)/(9- 4) -0.009 ND<4.17 OK (6/11/2007 a) ND<3.51 U (4/19/2006 a) (4.17- 3.51)/(10 - 4) 0.11 ND<3.13 OK (7/10/2006 a) ND<3.56 OK (5/18/2006 a) (3.13 - 3.56)/(6 - 5) -0.43 ND<3.71 OK (10/10/2006 a) ND<3.56 OK (5/18/2006 a) (3.71 - 3.56)/(7 - 5) 0.075 ND<3.17 OK (1/3/2007 -) ND<3.56 OK (5/18/2006 a) (3.17 - 3.56)/(8 - 5) -0.13 ND<3.465 OK (3/15/2007 -) ND<3.56 OK (5/18/2006 a) (3.465 - 3.56)/(9 -5) -0.02375 ND<4.17 OK (6/11/2007 a) ND<3.56 OK (5/18/2006 a) (4.17- 3.56)/(10- 5) 0.122 ND<3.71 OK (10/10/2006 a) ND<3.13 OK (7/10/2006 a) (3.71 - 3.13)/(7 - 6) 0.58 ND<3.17 OK (1/3/2007 -) ND<3.13 OK (7/10/2006 a) (3.17- 3.13)/(8- 6) 0.02 ND<3.465 OK (3/15/2007 ~) ND<3.13 OK (7/10/2006 a) (3.465 - 3.13)/(9- 6) 0.111667 ND<4.17 OK (6/11/2007 a) ND<3.13 OK (7/10/2006 a) (4.17- 3.13)/(10- 6) 0.26 ND<3;17 OK (1/3/2007 -) ND<3.71 OK (10/10/2006 a) (3.17- 3.71)/(8 - 7) -0.54 ND<3.465 OK (3/15/2007 ~) ND<3.71 OK (10/10/2006 a) (3.465 - 3.71)/(9 - 7) -0.1225 Page 1

ND<4.17 OK (6/11/2007 a) ND<3.71 OK (10/10/2006 a) (4.17- 3.71)/(10- 7) 0.153333 ND<3.465 OK (3/15/2007 -) ND<3.17 OK (1/3/2007 ~) (3.465 - 3.17)/(9 - 8) 0.295 ND<4.17 OK (6/11/2007 a) ND<3.17 OK (1/3/2007 ~) (4.17- 3.17)/(10- 8) 0.5 ND<4.17 OK (6/11/2007 a) ND<3.465 OK (3/15/2007 ~) (4.17- 3.465)/(10- 9) 0.705 Number of Q values = 45 Ordered o Values n Q 1 -0.54 2 -0.53 3 -0.43 4 -0.29 5 -0.263333 6 -0.234 7 '-0.21 8 -0.196667 9 -0.19 10 -0.185 11 -0.161429 12 -0.16 13 -0.13 14 -0.13 15 -0.1225 16 -0.11 17 -0.104375 18 -0.1 19 -0.0983333 20 -0.085 21 -0.08 22 -0.07 23 -0.05 24 -0.0435714 25 -0.0425 26 -0.02375 27 -0.0144444 28 -0.012 29 -0.009 30 -0.0025 31 0.02 32 0.05 33 0.05 34 0.0642857 35 0.0666667 36 0.075 37 0.11 38 0.111667 39 0.122 40 0.153333 41 0.26 42 0.295 43 0.5 44 0.58 45 0.705 Page 2

Sen's Estimator (Median Q) is -0.05 Time Period Observations 1/11/2006 1 2/24/2006 1 4/10/2006 1 4/19/2006 1 5/18/2006 1 7/10/2006 1 10/10/2006 1 1/3/2007 1 3/1.5/2007 1 6/11/2007 1 There are 0 time periods with multiple data A=0 B=0 c=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

. C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.13 = Q(13)

Upper limit is 0.05 = Q(33)

-0.13 < 0 <0.05 indicating no trend in data.

Page 3

Cs-1 37

-J 0

0~

C 0

C C.)

C 0

0 (0 C) ( C) C, C) o C0 o) 0 0 0 C 0 0 0 (N (NCO-N (N Co OD C() CD (c)

Sample Date Page 1

. Sen's Parameter:Slope Analysis Cs-137 Location: MW102D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.63 U (2/24/2006 a) ND<3.73 U (1/9/2006 ~) (3.63 - 3.73)/(2 - 1) -0.1 ND<3.555 U (4/7/2006 -) ND<3.73 U (1/9/2006 ~) (3.555 - 3.73)/(3 - 1) -0.0875 ND<4.26 U (4/19/2006 a) ND<3.73 U (1/9/2006 ~) (4.26 - 3.73)/(4 - 1) 0.176667 ND<4 OK (5/18/2006 a) ND<3.73 U (1/9/2006 ~) (4- 3.73)/(5 - 1) 0.0675 ND<5.47 OK (7/19/2006 a) ND<3.73 U (1/9/2006 ~) (5.47 - 3.73)/(6 - 1) 0.348 ND<5.85 OK (10/19/2006 a) ND<3.73 U (1/9/2006 ~) (5.85 - 3.73)/(7 - 1) 0.353333 ND<4.17 OK (1/5/2007 a) ND<3.73 U (1/9/2006 ~) (4.17 - 3.73)/(8 - 1) 0.0628571 ND<2.54 OK (3/20/2007 a) ND<3.73 U (1/9/2006 ~) (2.54 - 3.73)/(9 - 1) -0.14875 ND<3.3 OK (6/12/2007 a) ND<3.73 U (1/9/2006 ~) (3.3- 3.73)/(10 - 1) -0.0477778 ND<3.555 U (4/7/2006 -) ND<3.63 U (2/24/2006 a) (3.555 - 3.63)/(3 - 2) -0.075 ND<4.26 U (4/19/2006 a) ND<3.63 U (2/24/2006 a) (4.26 - 3.63)/(4 - 2) 0.315 ND<4 OK (5/18/2006 a) ND<3.63 U (2/24/2006 a) (4 - 3.63)/(5 - 2) 0.123333 ND<5.47 OK (7/19/2006 a) ND<3.63 U (2/24/2006 a) (5.47 - 3.63)/(6 - 2) 0.46 ND<5.85 OK (10/19/2006 a) ND<3.63 U (2/24/2006 a) (5.85 - 3.63)/(7 - 2) 0.444 ND<4.17 OK (1/5/2007 a) ND<3.63 U (2/24/2006 a) (4.17 - 3.63)/(8 - 2) ,0.09 ND<2.54 OK (3/20/2007 a) ND<3.63 U (2/24/2006 a) (2.54 - 3.63)/(9 - 2) -0.155714 ND<3.3 OK (6/12/2007 a) ND<3.63 U (2/24/2006 a) (3.3 - 3.63)/(10 - 2) -0.04125 ND<4.26 U (4/19/2006 a) .ND<3.555 U (4/7/2006 ~) (4.26 - 3.555)/(4 - 3) 0.705 ND<4 OK (5/18/2006 a) ND<3.555 U (4/7/2006 ~) (4 - 3.555)/(5 - 3) 0.2225 ND<5.47 OK (7/19/2006 a) ND<3.555 U (4/7/2006 ~) (5.47 - 3.555)/(6 - 3) 0.638333 ND<5.85 OK (10/19/2006 a) ND<3.555 U (4/7/2006 ~) (5.85 - 3.555)/(7 - 3) 0.57375 ND<4.17 OK (1/5/2007 a) ND<3.555 U (4/7/2006 ~) (4.17 - 3.555)/(8 - 3) 0.123 ND<2.54 OK (3/20/2007 a) ND<3.555 U (4/7/2006 ~) (2.54 - 3.555)/(9 - 3) -0.169167 ND<3.3 OK (6/12/2007 a) ND<3.555 U (4/7/2006 ~) (3.3 - 3.555)/(10 - 3) -0.0364286 ND<4 OK (5/18/2006 a) ND<4.26 U (4/19/2006 a) (4 - 4.26)/(5 - 4) -0.26 ND<5.47 OK (7/19/2006 a) ND<4.26 U (4/19/2006 a) (5.47 - 4.26)/(6 - 4) 0.605 ND<5.85 OK (10/19/2006 a), ND<4.26 U (4/19/2006 a) (5.85 - 4.26)/(7 - 4) 0.53 ND<4.17 OK (1/5/2007 a) ND<4.26 U (4/19/2006 a) (4.17 - 4.26)/(8 - 4) -0.0225 ND<2.54 OK (3/20/2007 a) ND<4.26 U (4/19/2006 a) (2.54 - 4.26)/(9 - 4) -0.344 ND<3.3 OK (6/12/2007 a) ND<4.26 U (4/19/2006 a) (3.3- 4.26)/(10- 4) -0.16 ND<5.47 OK (7/19/2006 a) ND<4 OK (5/18/2006 a) (5.47 - 4)/(6 - 5) 1.47 ND<5.85 OK (10/19/2006 a) ND<4 OK (5/18/2006 a) (5.85 - 4)/(7 - 5) 0.925 ND<4.17 OK (1/5/2007 a) ND<4 OK (5/18/2006 a) (4.17- 4)/(8 - 5) 0.0566667 ND<2.54 OK (3/20/2007 a) ND<4,OK (5/18/2006 a) (2.54 - 4)/(9 - 5) -0.365 ND<3.3 OK (6/12/2007 a) ND<4 OK (5/18/2006 ,a) (3.3- 4)/(10- 5) -0.14 ND<5.85 OK (10/19/2006 a) ND<5.47 OK (7/19/2006 a) (5.85 - 5.47)/(7 - 6) 0.38 ND<4.17 OK (1/5/2007 a) ND<5.47 OK (7/19/2006 a) (4.17- 5.47)/(8 - 6) -0.65 ND<2.54 OK (3/20/2007 a) ND<5.47 OK (7/19/2006 a) (2.54 - 5.47)/(9 - 6) -0.976667 ND<3.3 OK (6/12/2007 a) ND<5.47 OK (7/19/2006 a) (3.3- 5.47)/(10- 6) -0.5425 ND<4.17 OK (1/5/2007 a) ND<5.85 OK (10/19/2006 a) (4.17 - 5.85)/(8 - 7) -1.68 ND<2.54 OK (3/20/2007 a) ND<5.85 OK (10/19/2006 a) (2.54 - 5.85)/(9 - 7) -1.655 Page 1

ND<3.3OK (6/12/2007 a) ND<5.85 OK (10/19/2006 a) (3.3 - 5.85)/(10- 7) -0.85 ND<2.54 OK (3/20/2007 a) ND<4.17 OK (1/5/2007 a) (2.54- 4.17)/(9- 8) -1.63 ND<3.3 OK (6/12/2007 a) ND<4.17 OK (1/5/2007 a) (3.3- 4.17)/(10- 8) -0.435 ND<3.3 OK (6/12/2007 a) ND<2.54 OK (3/20/2007 a) (3.3 - 2.54)/(10 - 9) 0.76 Number of Q values = 45 Ordered 0 Values n Q 1 -1.68 2 -1.655 3 -1.63 4 -0.976667 5 -0.85 6 -0.65 7 -0.5425 8 -0.435 9 -0.365 10 -0.344 11 -0.26 12 -0.169167 13 -0.16 14 -0.155714 15 -0.14875 16 -0.14 17 -0.1 18 -0.0875 19 -0.075 20 -0.0477778 21 -0.04125 22 -0.0364286 23 -0.0225 24 0.0566667 25 0.0628571 26 0.0675 27 0.09 28 0.123 29 0.123333 30 0.176667 31 0.2225 32 0.315 33 0.348 34 0.353333

.35 0.38 36 0.444 37 0.46 38 0.53 39 0.57375 40 0.605 41 0.638333 42 0.705 43 0.76 44 0.925 45 1.47 Page 2

Sen's Estimator (Median Q) is -0.0225 Time Period Observations 1/9/2006 1 2/24/2006 1 4/7/2006 1 4/19/2006 1 5/18/2006 1 7/19/2006 1 10/19/2006 1 1/5/2007 1 3/20/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0.

B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485

. C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.16 = Q(13)

Upper limit is 0.348 = Q(33)

-0.16 < 0 < 0.348.indicating no trend in data.

Page 3

0 Cs-1 37 Time-Series Graph of MW102S 5

0 0

C 0

C-,

C 0

0

',J I I I (D (0 C0 (0 0-. 0*

0 0 (o 0 0 0 00 0 0 0 0 C,

0) 00 0, (0 00 (N)

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW102S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.74 U (1/11/2006 a) ND<5.46 U (1/10/2006 a) (3.74 - 5.46)/(2 - 1) -1.72 ND<5.04 U (2/24/2006 a) ND<5.46 U (1/10/2006 a) (5.04 - 5.46)/(3 - 1) -0.21 ND<3.49 U (4/7/2006 a) ND<5.46 U (1/10/2006 a) (3.49 - 5.46)/(4 - 1) -0.656667 ND<3.59 U (4/19/2006 a) ND<5.46 U (1/10/2006 a) (3.59 - 5.46)/(5 - 1) -0.4675 ND<5.48 OK (5/14/2006 a) ND<5.46 U (1/10/2006 a) (5.48 - 5.46)/(6 - 1) 0.004 ND<4.56 OK (5/18/2006 a) ND<5.46 U (1/10/2006 a) (4.56 - 5.46)/(7 - 1) -0.15 ND<3.53 OK (5/19/2006 a) ND<5.46 U (1/10/2006 a) (3.53 - 5.46)/(8 - 1) -0.275714 ND<3.71 OK (7/19/2006 a) ND<5.46 U (1/10/2006 a) (3.71 - 5.46)/(9 - 1) -0.21875 ND<3.63 OK (10/19/2006 a) ND<5.46 U (1/10/2006 a) (3.63- 5.46)/(10 - 1) -0.203333 ND<3.82 OK (1/5/2007 a) ND<5.46 U (1/10/2006 a) (3.82 - 5.46)/(11 - 1) -0.164 ND<4.35 OK (3/19/2007 a) ND<5.46 U (1/10/2006 a) (4.35 - 5.46)/(12 - 1)' -0.100909 ND<4.86 OK (6/11/2007 a) ND<5.46 U (1/10/2006 a) (4.86 - 5.46)/(13 - 1) -0.05 ND<5.04 U (2/24/2006'a) ND<3.74 U (1/11/2006 a) (5.04 - 3.74)/(3 - 2) 1.3 ND<3.49 U (4/7/2006 a) ND<3.74 U (1/11/2006 a) (3.49 - 3.74)/(4 - 2) -0.125 ND<3.59 U (4/19/2006 a) ND<3.74 U (1/11/2006 a) (3.59 - 3.74)/(5 - 2) -0.05

. ND<5.48 ND<4.56 ND<3.53 OK (5/14/2006 a)

OK (5/18/2006 a)

OK (5/19/2006 a)

ND<3.74 ND<3.74 ND<3.74 U (1/11/2006 U (1/11/2006 U (1/11/2006 a) a)

a)

'(5.48 - 3.74)/(6 - 2)

(4.56 - 3.74)/(7 - 2)

(3.53 - 3.74)/(8 - 2) 0.435 0.164

-0.035 ND<3.71 OK (7/19/2006 a) ND<3.74 U (1/11/2006 a) (3.71 - 3.74)/(9 - 2) -0.00428571 ND<3.63 OK (10/19/2006 a) ND<3.74 U (1/11/2006 a) (3.63 - 3.74)/(10 - 2) -0.01375 ND<3.82 OK (1/5/2007 a) ND<3.74 U (1/11/2006 a) (3.82 - 3.74)/(11 - 2) 0.00888889 ND<4.35 OK (3/19/2007 a) ND<3.74 U (1/11/2006 a) (4.35 - 3.74)/(12 - 2) 0.061 ND<4.86 OK (6/11/2007 a) ND<3.74 U (1/11/2006 a) (4.86 - 3.74)/(13 - 2) 0.101818 ND<3.49 U (4/7/2006 a) ND<5.04 U (2/24/2006 a) (3.49 - 5.04)/(4 - 3) -1.55 ND<3.59 U (4/19/2006 a) ND<5.04 U (2/24/2006 a) (3.59 - 5.04)/(5 - 3) -0.725 ND<5.48 OK (5/14/2006 a) ND<5.04 U (2/24/2006 a) (5.48 - 5.04)/(6- 3) 0.146667 ND<4.56 OK (5/18/2006 a) ND<5.04 U (2/24/2006 a) (4.56 - 5.04)/(7 - 3) -0.12 ND<3.53 OK'(5/19/2006 a) ND<5.04 U (2/24/2006 a) (3.53 - 5.04)/(8 - 3) -0.302 ND<3.71 OK (7/19/2006 a) ND<5.04 U (2/24/2006 a) (3.71 - 5.04)/(9 - 3) -0.221667 ND<3.63 OK (10/19/2006 a) ND<5.04 U (2/24/2006 a) (3.63 - 5.04)/(10 - 3) -0.201429 ND<3.82 OK (1/5/2007 a), ND<5.04 U (2/24/2006 a) (3.82 - 5.04)/(11 - 3) -0.1525 ND<4.35 OK (3/19/2007 a) ND<5.04 U (2/24/2006 a) (4.35 - 5.04)/(12 - 3) -0.0766667 ND<4.86 OK (6/11/2007 a) ND<5.04 U (2/24/2006 a) (4.86 - 5.04)/(13 - 3) -0.018 ND<3.59 U (4/19/2006 a) ND<3.49 U (4/7/2006 a) (3.59 - 3.49)/(5 - 4) 0.1 ND<5.48 OK (5/14/2006 a) ND<3.49 U (4/7/2006 a) (5.48 - 3.49)/(6 - 4) 0.995 ND<4.56 OK (5/18/2006 a) ND<3.49 U (4/7/2006 a) (4.56 - 3.49)/(7 - 4) 0.356667 ND<3.53 OK (5/19/2006 a) ND<3.49 U (4/7/2006 a) (3.53 - 3.49)/(8 - 4) 0.01 ND<3.71 OK (7/19/2006 a) ND<3.49 U (4/7/2006 a) (3.71 - 3.49)/(9 - 4) 0.044 ND<3.63 OK (10/19/2006 a) ND<3.49 U (4/7/2006 a) (3.63 - 3.49)/(10 - 4) 0.0233333 ND<3.82 OK (1/5/2007 a) ND<3.49 U (4/7/2006 a) (3.82 - 3.49)/(11 - 4) 0.0471429 ND<4.35 OK (3/19/2007 a) ND<3.49 U (4/7/2006 a) (4.35 - 3.49)/(12- 4) 0.1075 ND<4.86 OK (6/11/2007 a) ND<3.49 U (4/7/2006 a) (4.86 - 3.49)/(13- 4) 0.152222 ND<5.48 OK (5/14/2006 a) ND<3.59 U (4/19/2006 a) (5.48 - 3.59)/(6 - 5) 1.89 Page 1

. ND<3.53 ND<4.56 ND<3.71 OK OK OK (5/19/2006 (5/18/2006 a) a)

(7/19/2006 a)

ND<3.59 ND<3.59 ND<3.59 U (4/19/2006 U (4/19/2006 U (4/19/2006 a) a)

a)

(4.56 - 3.59)/(7 - 5)

(3.53 - 3.59)/(8 - 5)

(3.71 - 3.59)/(9- 5) 0.485

-0.02 0.03 ND<3.63 OK (10/19/2006 a) ND<3.59 U (4/19/2006 a) (3.63 - 3.59)/(10- 5) 0.008 ND<3.82 OK (1/5/2007 a) ND<3.59 U (4/19/2006 a) (3.82 - 3.59)/(11 - 5) 0.0383333 ND<4.35 OK (3/19/2007 a) ND<3.59 U (4/19/2006 a) (4.35- 3.59)/(12- 5) 0.108571 ND<4.86 OK (6/11/2007 a) ND<3.59 U (4/19/2006 a) (4.86 - 3.59)/(13- 5) 0.15875 ND<4.56 OK (5/18/2006 a) ND<5.48 OK (5/14/2006 a) (4.56 - 5.48)/(7 - 6) -0.92 ND<3.53 OK (5/19/2006 a) ND<5.48 OK (5/14/2006 a) (3.53 - 5.48)/(8 - 6) -0.975 ND<3.71 OK (7/19/2006 a) ND<5.48 OK (5/14/2006 a) (3.71 - 5.48)/(9 - 6) -0.59 ND<3.63 OK (10/19/2006 a) ND<5.48 OK (5/14/2006 a) (3.63 - 5.48)/(10 - 6) -0.4625 ND<3.82 OK (1/5/2007 a) ND<5.48 OK (5/14/2006 a) (3.82 - 5.48)/(11 - 6) -0.332 ND<4.35 OK (3/19/2007 a) ND<5.48 OK (5/14/2006 a) (4.35 - 5.48)/(12 - 6) -0.188333 ND<4.86 OK (6/11/2007 a) ND<5.48 OK (5/14/2006 a) (4.86 - 5.48)/(13 - 6) -0.0885714 ND<3.53 OK (5/19/2006 a) ND<4.56 OK (5/18/2006 a) (3.53 - 4.56)/(8 - 7) -1.03 ND<3.71 OK (7/19/2006 a) ND<4.56 OK (5/18/2006 a) (3.71 - 4.56)/(9 - 7) -0.425 ND<3.63 OK (10/19/2006 a) ND<4.56 OK (5/18/2006 a) (3.63 - 4.56)/(10 - 7) -0.31 ND<3.82 OK (1/5/2007 a) ND<4.56 OK (5/18/2006 a) (3.82 - 4.56)/(11 - 7) -0.185 ND<4.35 OK (3/19/2007 a) ND<4.56 OK (5/18/2006 a) (4.35 - 4.56)/(12 - 7) -0.042 ND<4.86 OK (6/11/2007 a) ND<4.56 OK (5/18/2006 a) (4.86 - 4.56)/(13 - 7) 0.05 ND<3.71 OK (7/19/2006 a) ND<3.53 OK (5/19/2006 a) (3.71 - 3.53)/(9 - 8) 0.18 ND<3.63 OK (110/19/2006 a) ND<3;53 OK (5/19/2006 a) (3.63 - 3.53)/(10 - 8) 0.05 ND<3.82 OK (1/5/2007 a) ND<3.53 OK (5/19/2006 a) (3.82 - 3.53)/(11 - 8) 0.0966667 ND<4.35 OK (3/19/2007 a) ND<3.53 OK (5/19/2006 a) (4.35- 3.53)/(12- 8) 0.205 O ND<4.86 OK (6/11/2007 a) ND<3.53 OK (5/19/2006 a) (4.86 - 3.53)/(13- 8) 0.266 ND<3.63 OK (10/19/2006 a) ND<3.71 OK (7/19/2006 a) (3.63- 3.71)/(10- 9) -0.08 ND<3.82 OK (1/5/2007 a) ND<3.71 OK (7/19/2006 a) (3.82 - 3.71)/(11 - 9) 0.055 ND<4.35 OK (3/19/2007 a) ND<3.71 OK (7/19/2006 a) (4.35 - 3.71 )/(12- 9) 0.213333 ND<4.86 OK (6/11/2007 a) ND<3.71 OK (7/19/2006 a) (4.86- 3.71 )/(13 - 9) 0.2875 ND<3.82 OK (1/5/2007 a) ND<3.63 OK (10/19/2006 a) (3.82 - 3.63)/(11 - 10) 0.19 ND<4.35 OK (3/19/2007 a) ND<3.63 OK (10/19/2006 a) (4.35 - 3.63)/(12 - 10) 0.36 ND<4.86 OK (6/11/2007 a) ND<3.63 OK (10/19/2006 a) (4.86 - 3.63)/(13 - 10) 0.41 ND<4.35 OK (3/19/2007 a) ND<3.82 OK (1/5/2007 a) (4.35 - 3.82)/(12 - 11) 0.53 ND<4.86 OK (6/11/2007 a) ND<3.82 OK (1/5/2007 a) (4.86 - 3.82)/(13 - 11) 0.52 ND<4.86 OK (6/11/2007 a) ND<4.35 OK (3/19/2007 a) (4.86 - 4.35)/(13 - 12) 0.51 Number of Q values = 78 Ordered 0 Values n a 1 -1.72 2 -1.55 3 -1.03 4 -0.975 5 -0.92 6 -0.725 7 -0.656667 8 -0.59 9 -0.4675 Page 2

11 10 -0.425

-0.4625 12 -0.332 13 -0.31 14 -0.302 15 -0.275714 16 -0.221667 17 -0.21875 18 -0.21 19 -0.203333 20 -0.201429 21 -0.188333 22 -0.185 23 -0.164 24 -0.1525 25 -0.15 26 -0.125 27 -0.12 28 -0.100909 29 -0.0885714 30 -0.08 31 -0.0766667 32 -0.05 33 -0.05 34 -0.042 35 -0.035 36 -0.02 37 -0.018 38 -0.01375 39 -0.00428571 40 0.004 41 0.008 42 0.00888889 43 0.01 44 0.0233333 45 0.03 46 0.0383333 47 0.044 48 0.0471429 49 0.05 50 0.05 51 0.055 52 0.061 53 0.0966667 54 01 55 0.101818 56 0.1075 57 0.108571 58 0.146667 59 0.152222 60 0.15875 61 0.164 62 0.18 63 0.19 64 0.205 65 0.213333 66 0.266 Page 3

. 68 67 69 0.356667 0.2875 0.36 70 0.41 71 0.435 72 0.485 73 0.51 74 0.52 75 0.53 76 0.995 77 1.3 78 1.89 Sen's Estimator (Median Q) is -0.000142857 Time Period Observations 1/10/2006 1 1/11/2006 1 2/24/2006 1 4/7/2006 1 4/19/2006 1 5/14/2006 1 5/18/2006 1 5/19/2006 1 7/19/2006 1 10/19/2006 1 1/5/2007 1

. 3/19/2007 6/11/2007 1

1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 4836 b = 15444 c = 312 Group Variance = 268.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 26.9609 M1 = (78 - 26.9609)/2.0 = 25.5196 M2 = (78 + 26.9609)/2.0 + 1 = 53.4804 Lower limit is -0.125 = Q(26)

Upper limit is 0.0966667 = Q(53)

-0.125 < 0 < 0.0966667 indicating no trend in data.

Page 4

Cs-1 37 Time-Series Graph of MW103A 5

4 CC o

C-)

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW103A Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a ND<2.61 U (2/12/2006 a) 2.74 U (1/16/2006 a) (2.61 - 2.74)/(2 - 1) -0.13 ND<4.155 U (4/10/2006 -) 2.74 U (1/16/2006 a) (4.155 - 2.74)/(3 - 1) 0.7075 ND<4.76 U (4/13/2006 a) 2.74 U (1/16/2006 a) (4.76 - 2.74)/(4 - 1) 0.673333 ND<3.5 OK (5/19/2006 a) 2.74 U (1/16/2006 a) (3.5- 2.74)/(5 - 1) 0.19 ND<4.03 OK (7/18/2006 a) 2.74 U (1/16/2006 a) (4.03 - 2.74)/(6 - 1) 0.258 ND<5.24 OK (10/18/2006 a) 2.74 U (1/16/2006 a) (5.24 - 2.74)/(7 - 1) 0.416667 ND<3.52 OK (1/4/2007 a) 2.74 U (1/16/2006 a) (3.52 - 2.74)/(8 - 1) 0.111429 ND<3.41 OK (3/12/2007 a) 2.74 U (1/16/2006 a) (3.41 - 2.74)/(9 - 1) 0.08375 ND<5.38 OK (6/12/2007 a) 2.74 U (1/16/2006 a) (5.38 - 2.74)/(10 - 1) 0.293333 ND<4.155 U (4/10/2006 -) ND<2.61 U (2/12/2006 a) (4.155 - 2.61)/(3 - 2) 1.545 ND<4.76 U (4/13/2006 a) ND<2.61 U (2/12/2006 a) (4.76 - 2.61)/(4- 2) 1.075 ND<3.5 OK (5/19/2006 a) ND<2.61 U (2/12/2006 a) (3.5- 2.61)/(5 - 2) 0.296667 ND<4.03 OK (7/18/2006 a) ND<2.61 U (2/12/2006 a) (4.03 - 2.61)/(6- 2) 0.355 ND<5.24 OK (10/18/2006 a) ND<2.61 U (2/12/2006 a) (5.24 - 2.61)/(7 - 2) 0.526 ND<3.52 OK (1/4/2007 a) ND<2,61 U (2/12/2006 a) (3.52 - 2.61)/(8 - 2) 0.151667 ND<3.41 OK (3/12/2007 a) ND<2.61 U (2/12/2006 a) (3.41 - 2.61)/(9- 2) 0.114286 ND<5.38 OK (6/12/2007 a) ND<2.61 U (2/12/2006 a) (5.38 - 2.61)/(10- 2) 0.34625 ND<4.76 U (4/13/2006 a) ND<4.155 U (4/10/2006 ~) (4.76 - 4.155)/(4- 3) 0.605 ND<3.5 OK (5/19/2006 a) ND<4.155 U (4/10/2006 ~) (3.5- 4.155)/(5- 3) -0.3275 ND<4.03 OK (7/18/2006 a) ND<4.155 U (4/10/2006 ~) (4.03- 4.155)/(6 - 3) -0.0416667 ND<5.24 OK (10/18/2006 a) ND<4.155 U (4/10/2006 ~) (5.24 - 4.155)/(7 - 3) 0.27125 ND<3.52 OK (1/4/2007 a) ND<4.155 U (4/10/2006 ~) (3.52 -,4.155)/(8 - 3) -0.127 ND<3.41 OK (3/12/2007 a) ND<4.155 U (4/10/2006 ~) (3.41 - 4.155)/(9 - 3) -0.124167 ND<5.38 OK (6/12/2007 a) ND<4.155 U (4/10/2006 ~) (5.38 - 4.155)/(10 - 3) 0.175 ND<3.5 OK (5/19/2006 a) ND<4.76 U (4/13/2006 a) (3.5 - 4.76)/(5 - 4) -1.26 ND<4.03 OK (7/18/2006 a) ND<4.76 U (4/13/2006 a) (4.03 - 4.76)/(6 - 4) -0.365 ND<5.24 OK (10/18/2006 a) ND<4.76 U (4/13/2006 a) (5.24 - 4.76)/(7 - 4) 0.16 ND<3.52 OK (1/4/2007 a) ND<4.76 U (4/13/2006 a) (3.52 - 4.76)/(8 - 4) -0.31 ND<3.41 OK (3/12/2007 a) ND<4.76 U (4/13/2006 a) (3.41 - 4.76)/(9 - 4) -0.27 ND<5.38 OK (6/12/2007 a) ND<4.76 U (4/13/2006 a) (5.38- 4.76)/(10- 4) 0.103333 ND<4.03 OK (7/18/2006 a) ND<3.5 OK (5/19/2006 a) (4.03 - 3.5)/(6 - 5) 0.53 ND<5.24 OK (10/18/2006 a) ND<3.5 OK (5/19/2006 a) (5.24 - 3.5)/(7 - 5) 0.87 ND<3.52 OK (1/4/2007 a) ND<3.5 OK (5/19/2006 a) (3.52 - 3.5)/(8 - 5) 0.00666667 ND<3.41 OK (3/12/2007 a) ND<3.5 OK (5/19/2006 a) (3.41 - 3.5)/(9 - 5) -0.0225 ND<5.38 OK (6/12/2007 a) ND<3.5 OK (5/19/2006 a) (5.38 - 3.5)/(10 - 5) 0.376 ND<5.24 OK (10/18/2006 a) ND<4.03 OK (7/18/2006 a) (5.24 - 4.03)/(7 - 6) 1.21 ND<3.52 OK (1/4/2007 a) ND<4.03 OK (7/18/2006 a) (3.52 - 4.03)/(8 - 6) -0.255 ND<3.41 OK (3/12/2007 a) ND<4.03 OK (7/18/2006 a) (3.41 - 4.03)/(9 - 6) -0.206667 ND<5.38 OK (6/12/2007 a) ND<4.03 OK (7/18/2006 a) (5.38 - 4.03)/(10 - 6) 0.3375 ND<3.52 OK (1/4/2007 a) ND<5.24 OK (10/18/2006 a) (3.52 - 5.24)/(8 - 7) -1.72 ND<3.41 OK (3/12/2007 a) ND<5.24 OK (10/18/2006 a) (3.41 - 5.24)/(9 - 7) -0.915 Page 1

ND<5.38 OK (6/12/2007 a) N D<5.24 OK (10/18/2006 a) (5.38.- 5.24)/(10 - 7) 0.0466667 ND<3.41 OK (3/12/2007 a) ND<3.52 OK (1/4/2007 a) (3.41 - 3.52)/(9 - 8) -0.11 ND<5.38 OK (6/12/2007 a) ND<3.52 OK (1/4/2007 a) (5.38 - 3.52)/(10 - 8) 0.93 ND<5.38 OK (6/12/2007 a) ND<3.41 OK (3/12/2007 a) (5.38 - 3.41)/(10 - 9) 1.97 Number of Q values = 45 Ordered Q Values n Q 1 -1.72 S2 -1.26 3 -0.915 4 -0.365 5 -0.3275 6 -0.31 7 -0.27 8 -0.255 9 -0.206667 10 -0.13 11 -0.127 12 -0.124167 13, -0.11 14 -0.0416667 15 -0.0225 16 0.00666667 17 0.0466667 18 0.08375 19 0.103333 20 0.111429 21 0.114286 22 0.151667 23 0.16 24 0.175 25 0.19 26 0.258 27 0.27125 28 0.293333 29 0.296667 30 0.3375 31 0.34625 32 0.355 33 0.376 34 0.416667 35 0.526 36 0.53 37 0.605 38 0.673333 39 0.7075 40 0.87 41 .0.93 42 1.075 43 1.21 44 1.545 45 1.97 Page 2

O Sen's Estimator (Median Q) is 0.16 Time Period Observations 1/16/2006 1 2/12/2006 1 4/10/2006 1 4/13/2006 1 5/19/2006 1 7/18/2006 1 10/18/2006 1 1/4/2007 1 3/12/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 18.39 M1 (45- 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.11 = Q(13)

Upper limit is 0.376 = Q(33)

-0.11 < 0 < 0.376 indicating no trend in data.

Page 3

0 0s 0 Cs-I 37

-J 0

0~

0 C

0 0

(D ( (D (0 t- 0 o) C00 0 0) 0 0 N (N (0, 04

-CO) (N OD (0 Sample Date Page 1

O Sen's Parameter:Slope Analysis Cs-137 Location: MW103B Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a ND<2.49 U (2/12/2006 a) ND<3.83 U (1/16/2006 a) (2.49- 3.83)/(2 - 1) -1.34 ND<3.13 U (4/7/2006 a) ND<3.83 U (1/16/2006 a) (3.13 -.3.83)/(3 - 1) -0.35 2.73 U (4/13/2006 -) ND<3.83 U (1/16/2006 a) (2.73 - 3.83)/(4 - 1) -0.366667 ND<3.75 OK (5/19/2006 a) ND<3.83 U (1/16/2006 a) (3.75 - 3.83)/(5 - 1) -0.02 ND<2.92 OK (7/18/2006 a) ND<3.83 U (1/16/2006 a) (2.92 - 3.83)/(6 - 1) -0.182 N D<3.5 OK(10/18/2006 a) ND<3.83 U (1/16/2006 a) (3.5- 3.83)/(7 - 1) -0.055 ND<3.86 OK (1/2/2007 a) ND<3.83 U (1/16/2006 a) (3.86 - 3.83)/(8 - 1) 0.00428571 ND<7.29 OK (3/12/2007 a) ND<3.83 U (1/16/2006 a) (7.29 - 3.83)/(9 -.1) 0.4325 ND<6.63 OK (6/12/2007 a) ND<3.83 U (1/16/2006 a) (6.63- 3.83)/(10 - 1) 0.311111 ND<3.13 U (4/7/2006 a) ND<2.49 U (2/12/2006 a) (3.13 - 2.49)/(3 - 2) 0.64 2.73 U (4/13/2006 -) ND<2.49 U (2/12/2006 a) (2.73 - 2.49)/(4 - 2) 0.12 ND<3.75 OK (5/19/2006 a) ND<2.49 U (2/12/2006 a) (3.75 - 2.49)/(5 - 2) 0.42 ND<2.92 OK (7/18/2006 a) ND<2.49 U (2/12/2006 a) (2.92 - 2.49)/(6 - 2) 0.1075 ND<3.5 OK (10/18/2006. a) ND<2.49 U (2/12/2006 a) (3.5 - 2.49)/(7 - 2) 0.202 ND<3.86 OK (1/2/2007 a) ND<2.49 U (2/12/2006 a) (3.86 - 2.49)/(8 - 2) 0.228333 ND<7.29 OK (3/12/2007 a) ND<2.49 U (2/12/2006 a) (7.29 - 2.49)/(9 - 2) 0.685714 ND<6.63 OK (6/12/2007 a) ND<2.49 U (2/12/2006 a) (6.63 - 2.49)/(10 - 2) 0.5175 2.73 U (4/13/2006 -) ND<3.13 U (4/7/2006 a) (2.73- 3.13)/(4 - 3) -0.4 ND<3.75 OK (5/19/2006 a) ND<3.13 U (4/7/2006 a) (3.75 - 3.13)/(5- 3) 0.31 ND<2.92 OK (7/18/2006 a) ND<3.13 U (4/7/2006 a) (2.92- 3.13)/(6 - 3) -0.07 ND<3.5 OK (10/18/2006 a) ND<3.13 U (4/7/2006 a) (3.5- 3.13)/(7- 3) 0.0925 ND<3.86 OK (1/2/2007 a) ND<3.13 U (4/7/2006 a) (3.86 - 3.13)/(8 - 3) 0.146 ND<7.29 OK (3/12/2007 a) ND<3.13 U (4/7/2006 a) (7.29 - 3.13)/(9 - 3) 0.693333 ND<6.63 OK (6/12/2007 a) ND<3.13 U (4/7/2006 a) (6.63 - 3.13)/(10- 3) 0.5 ND<3.75 OK (5/19/2006 a) 2.73 U (4/13/2006 ~) (3.75 - 2.73)/(5 - 4) 1.02 ND<2.92 OK (7/18/2006 a) 2.73 U (4/13/2006 ~) (2.92 - 2.73)/(6 - 4) 0.095 ND<3.5 OK (10/18/2006 a) 2.73 U (4/13/2006 ~) (3.5 - 2.73)/(7 - 4) 0.256667 ND<3.86 OK (1/2/2007 a) 2.73 U (4/13/2006 ~) (3.86 - 2.73)/(8 - 4) 0.2825 ND<7.29 OK (3/12/2007 a) 2.73 U (4/13/2006 ~) (7.29 - 2.73)/(9 - 4) 0.912 ND<6.63 OK (6/12/2007 a) 2.73 U (4/13/2006 ~) (6.63 - 2.73)/(10 - 4) 0.65 ND<2.92 OK (7/18/2006 a) ND<3.75 OK (5/19/2006 a) (2.92 - 3.75)/(6 - 5) -0.83 ND<3.5 OK (10/18/2006 a) ND<3.75 OK (5/19/2006 a) (3.5 - 3.75)/(7 - 5) -0.125 ND<3.86 OK (1/2/2007 a) ND<3.75 OK (5/19/2006 a) (3.86 - 3.75)/(8 - 5) 0.0366667 ND<7.29 OK (3/12/2007 a) ND<3.75 OK (5/19/2006 a) (7.29 - 3.75)/(9 - 5) 0.885 ND<6.63 OK (6/12/2007 a) ND<3.75 OK (5/19/2006 a) (6.63 - 3.75)/(10 - 5) 0.576 ND<3.5 OK (10/18/2006 a) ND<2.92 OK (7/18/2006 a) (3.5 - 2.92)/(7 - 6) 0.58 ND<3.86 OK (1/2/2007 a) ND<2.92 OK (7/18/2006 a) (3.86 - 2.92)/(8 - 6) 0.47 ND<7.29 OK (3/12/2007 a) ND<2.92 OK (7/18/2006 a) (7.29 - 2.92)/(9 - 6) 1.45667 ND<6.63 OK (6/12/2007 a) ND<2.92 OK (7/18/2006 a) (6.63 - 2.92)/(10 - 6) 0.9275 ND<3.86 OK (1/2/2007 a) ND<3.5 OK (10/18/2006 a) (3.86 - 3.5)/(8 - 7) 0.36 ND<7.29 OK (3/12/2007 a) ND<3.5 OK (10/18/2006 a) (7.29 - 3.5)/(9 - 7) 1.895 Page 1

ND<6.63 OK (6/12/2007 a) ND<3.5 OK (10/18/2006 a) (6.63 - 3.5)/(10 - 7) 1.04333 ND<7.29 OK (3/12/2007 a) ND<3.86 OK (1/2/2007 a) (7.29 - 3.86)/(9 - 8) 3.43 ND.<6.63 OK (6/12/2007 a) ND<3.86 OK (1/2/2007 a) (6.63- 3.86)/(10- 8) 1.385 ND<6.63 OK (6/12/2007 a) ND<7.29 OK (3/12/2007 a) (6.63 - 7.29)/(10- 9) -0.66 Number of Q values =45 Ordered Q Values n Q 1 -1;34 2 -0.83 3 -0.66 4 -0.4 5 -0.366667 6 -0.35 7 -0.182 8 -0.125 9 -0.07 10 -0.055 11 -0.02 12 0.00428571 13 0.0366667 14 0.0925 15 0.095 S 16 0.1075 17 0.12 18 0.146 19 0.202 20 0.228333 21 0.256667 22 0.2825 23 0.31 24 0.311111 25 0.36 26 0.42 27 0.4325 28 0.47 29 0.5 30 0.5175 31 0.576 32 0.58 33 0.64 34 0.65 35 0.685714 36 0.693333 37 0.885 38 0.912 39 0.9275 40 1.02 41 1.04333

. 42 43 44 1.385 1.45667 1.895 45 3.43 Page 2

Sen's Estimator (Median Q) is 0.31 Time Period Observations 1/16/2006 1 2/12/2006 1 4/7/2006 1 4/13/2006 1 5/19/2006 1 7/18/2006 1 10/18/2006 1 1/2/2007 1 3/12/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B =0.

C=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 18.39

M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is 0.0366667 = Q(1 3)

Upper limit is 0.64 = Q(33) 0.0366667 > 0 indicating an upward trend in data.

Page 3

Cs-1 37 Time-Series Graph of MW103D 7

4-o 2 0)0 Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW103D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.12 U (2/16/2006 a) 5.52 U (1/10/2006 a) (3.12- 5.52)/(2 - 1) -2.4 ND<2.99 U (3/18/2006 a) 5.52 U (1/10/2006 a) (2.99 - 5.52)/(3 - 1) -1.265 ND<5.78 U (4/13/2006 a) 5.52 U (1/10/2006 a) (5.78 - 5.52)/(4 - 1) 0.0866667 ND<4.07 OK (5/19/2006 a) 5.52 U (1/10/2006 a) (4.07 - 5.52)/(5 - 1) -0.3625 7.15 OK (7/18/2006 a) 5.52 U (1/10/2006 a) (7.15 - 5.52)/(6 - 1) 0.326 3.8 OK (10/18/2006 a) 5.52 U (1/10/2006 a) (3.8- 5.52)/(7 - 1) -0.286667 ND<5.97 OK (11/15/2006 a) 5.52 U (1/10/2006 a) (5.97 - 5.52)/(8 - 1) 0.0642857 ND<3.76 OK (1/5/2007 a) 5.52 U (1/10/2006 a) (3.76 - 5.52)/(9 - 1) -0.22 ND<4.7 OK (3/12/2007 a) 5.52 U (1/10/2006 a) (4.7- 5.52)/(10 - 1) -0.0911111 ND<7.28 OK (6/12/2007 a) 5.52 U (1/10/2006 a) (7.28 - 5.52)/(11 - 1) 0.176 ND<2.99 U (3/18/2006 a) ND<3.12 U (2/16/2006 a) (2.99 - 3.12)/(3 - 2) -0.13 ND<5.78 U (4/13/2006 a) ND<3.12 U (2/16/2006 a) (5.78 - 3.12)/(4 - 2) 1.33 ND<4.07 OK (5/19/2006 a) ND<3.12 U (2/16/2006 a) (4.07 - 3.12)/(5- 2) 0.316667 7.15 OK (7/18/2006 a) ND<3.12 U (2/16/2006 a) (7.15 - 3.12)/(6 - 2) 1.0075 3.8 OK (10/18/2006 a) ND<3.12 U (2/16/2006 a) (3.8- 3.12)/(7 - 2) 0.136

. ND<5.97 OK (11/15/2006 a)

ND<3.76 OK (1/5/2007 a)

ND<4.7 OK (3/12/2007 a)

ND<3.12 ND<3.12 ND<3.12 U (2/16/2006 U (2/16/2006 U (2/16/2006 a) a)

a)

(5.97- 3.12)/(8 - 2)

(3.76 - 3.12)/(9 - 2)

(4.7- 3.12)/(10- 2) 0.475 0.0914286 0.1975 ND<7.28 OK (6/12/2007 a) ND<3.12 U (2/16/2006 a) (7.28 - 3.12)/(11 - 2) 0.462222 ND<5.78 U (4/13/2006 a) ND<2.99 U (3/18/2006 a) (5.78 - 2.99)/(4 - 3) 2.79 ND<4.07 OK (5/19/2006 a) ND<2.99 U (3/18/2006 a) (4.07 - 2.99)/(5 - 3) 0.54 7.15 OK (7/18/2006 a) ND<2.99 U (3/18/2006 a) (7.15- 2.99)/(6- 3) 1.38667 3.8 OK (10/18/2006 a) ND<2.99 U (3/18/2006 a) (3.8 - 2.99)/(7 - 3) 0.2025 ND<5.97 OK (11/15/2006 a) ND<2.99 U (3/18/2006 a) (5.97 - 2.99)/(8 - 3) 0.596 ND<3.76 OK (1/5/2007 a) ND<2.99 U (3/18/2006 a) (3.76 - 2.99)/(9 - 3) 0.128333 ND<4.7 OK (3/12/2007 a) ND<2.99 U (3/18/2006 a) (4.7 - 2.99)/(10 - 3) 0.244286 ND<7.28 OK (6/12/2007 a) ND<2.99 U (3/18/2006 a) (7.28 - 2.99)/(11 - 3) 0.53625 ND<4.07 OK (5/19/2006 a) ND<5.78 U (4/13/2006 a) (4.07 - 5.78)/(5 - 4) -1.71 7.15 OK (7/18/2006 a) ND<5.78 U (4/13/2006 a) (7.15 - 5.78)/(6 - 4) 0.685 3.8 OK (10/18/2006 a) ND<5.78 U (4/13/2006 a) (3.8 - 5.78)/(7 - 4) -0.66 ND<5.97 OK (11/15/2006 a) ND<5.78 U (4/13/2006 a) (5.97 - 5.78)/(8 - 4) 0.0475 ND<3.76 OK (1/5/2007 a) ND<5.78 U (4/13/2006 a) (3.76 - 5.78)/(9 - 4) -0.404 ND<4.7 OK (3/12/2007 a) ND<5.78 U (4/13/2006 a) (4.7 - 5.78)/(10 - 4) -0.18 ND<7.28 OK (6/12/2007 a) ND<5.78 U (4/13/2006 a) (7.28 - 5.78)/(11 - 4) 0.214286 7.15 OK (7/18/2006 a) ND<4.07 OK (5/19/2006 a) (7.15 - 4.07)/(6 - 5) 3.08 3.8 OK (10/18/2006 a) ND<4.07 OK (5/19/2006 a) (3.8 - 4.07)/(7 - 5) -0.135 ND<5.97 OK (11/15/2006 a) ND<4.07 OK (5/19/2006 a) (5.97 - 4.07)/(8 - 5) 0.633333 ND<3.76 OK (1/5/2007 a) ND<4.07 OK (5/19/2006 a) (3.76 - 4.07)/(9 - 5) -0.0775 ND<4.7 OK (3/12/2007 a) ND<4.07 OK (5/19/2006 a) (4.7 - 4.07)/(10- 5) 0.126 ND<7.28 OK (6/12/2007 a) ND<4.07 OK (5/19/2006 a) (7.28 - 4.07)/(11 - 5) 0.535

. 3.8 OK (10/18/2006 a)

ND<5.97 OK (11/15/2006 a) 7.15 OK (7/18/2006 a) 7.15 OK (7/18/2006 a)

(3.8 - 7.15)/(7 - 6)

(5.97 - 7.15)/(8 - 6)

-3.35

-0.59 Page 1

7.15 OK (7/18/2006 a) (3.76- 7.15)/(9- 6) -1.13 S ND<4.7 ND<3.76OK (1/5/2007 a)

OK(3/12/2007 ND<7.28 OK (6/12/2007 a) 7.15 OK (7/18/2006 a) 7.15 OK (7/18/2006 a)

(4.7- 7.15)/(10- 6)

(7.28- 7.15)/(11 - 6)

-0.6125 0.026 ND<5.97 OK (11/15/2006 a) 3.8 OK(10/18/2006 a) (5.97 - 3.8)/(8 - 7) 2.17 ND<3.76 OK (1/5/2007 a) 3.8 OK (10/18/2006 a) (3.76 - 3.8)/(9 - 7) -0.02 ND<4.7 OK (3/12/2007 a) 3.8 OK (10/18/2006 a) (4.7- 3.8)/(10- 7) 0.3 ND<7.28 OK (6/12/2007 a), 3.8 OK (10/18/2006 a) (7.28 - 3.8)/(11 - 7) 0.87 ND<3.76 OK (1/5/2007 a) ND<5.97 OK (11/15/2006 a) (3.76 - 5.97)/(9 - 8) -2.21 ND<4.7 OK (3/12/2007 a) ND<5.97 OK (11/15/2006 a) (4.7- 5.97)/(10- 8) -0.635 ND<7.28 OK (6/12/2007 a) ND<5.97 OK (11/15/2006 a) (7.28 - 5.97)/(11 - 8) 0.436667 ND<4.7 OK (3/12/2007 a) ND<3.76 OK (1/5/2007 a) (4.7- 3.76)/(10- 9) 0.94 ND<7.28 OK (6/12/2007 a) ND<3.76 OK (1/5/2007 a) (7.28 - 3.76)/(11 - 9) 1.76 ND<7.28 OK (6/12/2007 a) ND<4.7 OK (3/12/2007 a) (7.28 - 4.7)/(11 - 10) 2.58 Number of Q values = 55 Ordered 0 Values n Q 1 -3.35 2 -2.4 3 -2.21 4 -1.71 5 -1.265 6 -1.13 7 -0.66 8 -0.635 9 -0.6125 10 -0.59

.11 -0.404 12 -0.3625 13 -0.286667 14 -0.22 15 -0.18 16 -0.135 17 -0.13 18 -0.0911111 19 -0.0775 20 -0.02 21 0.026 22 0.0475 23 0.0642857 24 0.0866667 25 0.0914286 26 0.126 27 0.128333 28 0.136 29 0.176 30 0.1975 31 0.2025 32 0.214286 33 0.244286 34 0.3 Page 2

S 36 35 37 0.326 0.316667 0.436667 38 0.462222 39 0.475 40 0.535 41 0.53625 42 0.54 43 0.596 44 0.633333 45 0.685 46 0.87 47 0.94 48 1.0075 49 1.33 50 1.38667 51 1.76 52 2.17 53 2.58 54 2.79 55 3.08 Sen's Estimator (Median Q) is 0.136 Time Period Observations 1/10/2006 1 2/16/2006 1 3/18/2006 1 4/13/2006 1 5/19/2006 1 7/18/2006 1 10/18/2006 1 11/15/2006 1 1/5/2007 1 3/12/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B,=0 C'= 0 D=0 E=0 F=0 a =2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.13 = Q(17)

Upper limit is 0.475 = Q(39)

-0.13 < 0 < 0.475 indicating no trend in data.

Page 3

Cs-1 37

.2 0

L) 0 (D U) 0.

C) 0 CD 0 0 0 0 0 0 0 0 C) 0 C) 04 CD CM C, 0 tiz C0)

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW103S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 7.01 OK (2/10/2006 a) 12.8 OK (1/11/2006 a) (7.01 - 12.8)/(2 - 1) -5.79 ND<4.2 U (4/7/2006 a) 12.8 OK (1/11/2006 a) (4.2 - 12.8)/(3 - 1) -4.3 7.56 OK (4/13/2006 a) 12.8 OK (1/11/2006 a) (7.56 - 12.8)/(4 - 1) -1.74667 5.9 OK (5/19/2006 a) 12.8 OK (1/11/2006 a) (5.9 - 12.8)/(5 - 1) -1.725 6.21 OK (7/18/2006 a) 12.8 OK (1/11/2006 a) (6.21 - 12.8)/(6 - 1) -1.318 27.9 OK (10/18/2006 a) 12.8 OK (1/11/2006 a) (27.9- 12.8)/(7 - 1) 2.51667 33.7 OK (11/15/2006 a) 12.8 OK (1/11/2006 a) (33.7 - 12.8)/(8 - 1) 2.98571 21.8 OK (1/2/2007 a) 12.8 OK (1/11/2006 a) (21.8- 12.8)/(9 - 1) 1.125 ND<3.13 OK (3/12/2007 a) 12.8 OK (1/11/2006 a) (3.13- 12.8)/(10- 1) -1.07444 ND<5.91 OK (6/11/2007 a) 12.8 OK (1/11/2006 a) (5.91 - 12.8)/(11 -1) -0.689 ND<4.2 U (4/7/2006 a) 7.01 OK (2/10/2006 a) (4.2- 7.01)/(3 - 2) -2.81 7.56 OK (4/13/2006 a) 7.01 OK (2/10/2006 a) (7.56 - 7.01)/(4 - 2) 0.275 5.9 OK (5/19/2006 a) 7.01 OK (2/10/2006 a) (5.9- 7.01)/(5 - 2) -0.37 6.21 OK (7/18/2006 a) 7.01 OK (2/10/2006 a) (6.21 - 7.01)/(6- 2) -0.2 27.9 OK (10/18/2006 a) 7.01 OK (2/10/2006 a) (27.9- 7.01)/(7- 2) 4.178

. 33.7 OK (11/15/2006 a) 21.8 OK (1/2/2007 a)

ND<3.13 OK (3/12/2007 a) 7.01 7.01 7.01 OK OK OK (2/10/2006 (2/10/2006 (2/10/2006 a) a)

a)

(33.7- 7.01)/(8- 2)

(21.8- 7.01)/(9- 2)

(3.13- 7.01)/(10 - 2) 4.44833 2.11286

-0.485 ND<5.91 OK (6/11/2007 a) 7.01 OK (2/10/2006 a) (5.91 - 7.01)/(11 - 2) -0.122222 7.56 OK (4/13/2006 a) ND<4.2 U (4/7/2006 a) (7.56 - 4.2)/(4 - 3) 3.36 5.9 OK (5/19/2006 a) ND<4.2 U (4/7/2006 a) (5.9 - 4.2)/(5 - 3) 0.85 6.21 OK (7/18/2006 a) ND<4.2 U (4/7/2006 a) (6.21 - 4.2)/(6 - 3) 0.67 27.9 OK (10/18/2006 a) ND<4.2 U (4/7/2006 a) (27.9 - 4.2)/(7 - 3) 5.925 33.7 OK (11/15/2006 a) ND<4.2 U (4/7/2006 a) (33.7 - 4.2)/(8 - 3) 5.9 21.8 OK (1/2/2007 a) ND<4.2 U (4/7/2006 a) (21.8- 4.2)/(9 - 3) 2.93333 ND<3.13 OK (3/12/2007 a) ND<4.2 U (4/7/2006 a) (3.13- 4.2)/(10- 3) -0.152857 ND<5.91 OK (6/11/2007 a) ND<4.2 U (4/7/2006 a) (5.91 - 4.2)/(11 - 3) 0.21375 5.9 OK (5/19/2006 a) 7.56 OK (4/13/2006 a) (5.9 - 7.56)/(5 - 4) -1.66 6.21 OK (7/18/2006 a) 7.56 OK (4/13/2006 a) (6.21 - 7.56)/(6 - 4) -0.675 27.9 OK (10/18/2006 a) 7.56 OK (4/13/2006 a) (27.9 - 7.56)/(7 - 4) 6.78 33.7 OK (11/15/2006 a) 7.56 OK (4/13/2006 a) (33.7 - 7.56)/(8 - 4) 6.535 21.8 OK (1/2/2007 a) 7.56 OK (4/13/2006 a) (21.8- 7.56)/(9 - 4) 2.848 ND<3.13 OK (3/12/2007 a) 7.56 OK (4/13/2006 a) (3.13- 7.56)/(10- 4) -0.738333 ND<5.91 OK (6/11/2007 a) 7.56 OK (4/13/2006 a) (5.91 - 7.56)/(11 - 4) -0.235714 6.21 OK (7/18/2006 a) 5.9 OK (5/19/2006 a) (6.21 - 5.9)/(6 - 5) 0.31 27.9 OK (10/18/2006 a) 5.9 OK (5/19/2006 a) (27.9 - 5.9)/(7 - 5) 11 33.7 OK (11/15/2006 a) 5.9 OK (5/19/2006 a) (33.7 - 5.9)/(8 - 5) 9.26667 21.8 OK (1/2/2007 a) 5.9 OK (5/19/2006 a) (21.8- 5.9)/(9 - 5) 3.975 ND<3.13 OK (3/12/2007 a) 5.9 OK (5/19/2006 a) (3.13- 5.9)/(10- 5) -0.554 ND<5.91 OK (6/11/2007 a) 5.9 OK (5/19/2006 a) (5.91 - 5.9)/(11 - 5) 0.00166667

. 27.9 OK (10/18/2006 a) 33.7 OK (11/15/2006 a) 6.21 OK (7/18/2006 a) 6.21 OK (7/18/2006 a)

(27.9 - 6.21)/(7 - 6)

(33.7 - 6.21)/(8 7 6) 21.69 13.745 Page 1

. ND<3.13 OK (3/12/2007 21.8 OK(1/2/2007 a)

ND<5.91 OK (6/11/2007 a) a)

6.21 OK (7/18/2006 a) 6.21 OK (7/18/2006 a) 6.21 OK (7/18/2006 a)

(21.8- 6.21)/(9- 6)

(3.13- 6.21)/(10- 6)

(5.91 - 6.21)/(11 - 6) 5.19667

-0.77

-0.06 33.7 OK (11/15/2006 a) 27.9 OK (10/18/2006 a) (33.7 - 27.9)/(8 - 7) 5.8 21.8 OK (1/2/2007 a) 27.9 OK (10/18/2006 a) (21.8 - 27.9)/(9 - 7) -3.05 ND<3.13 OK (3/12/2007 a) 27.9 OK (10/18/2006 a) (3.13- 27.9)/(10- 7) -8.25667 ND<5.91 OK (6/11/2007 a) 27.9 OK (10/18/2006 a): (5.91 - 27.9)/(11 - 7) -5.4975 21.8 OK (1/2/2007 a) 33.7 ,0K (11/15/2006 a) (21.8 - 33.7)/(9 - 8). -11.9 ND<3.13 OK (3/12/2007 a) 33.7 OK (11/15/2006 a) (3.13- 33.7)/(10 - 8) -15.285 ND<5.91 OK (6/11/2007 a) 33.7 OK (11/15/2006 a) (5.91 - 33.7)/(11 - 8) -9.26333 ND<3.13 OK (3/12/2007 a) 21.8 OK (1/,2/2007 a) -18.67 (3.13 - 21.8)/(10 - 9)

ND<5.91 OK (6/11/2007 a) 21.8 OK (1/2/2007 a) (5.91 - 21.8)/(11 - 9) -7.945 ND<5.91 OK (6/11/2007 a) ND<3.13 OK (3/12/2007 a) (5.91 - 3.13)/(11 - 10) 2.78 Number of Q values = 55 Ordered Q Values n Q 1 -18.67 2 -15.285 3 -11.9.

4 -9.26333 5 -8.25667 6 -7.945 7 -5.79 8 -5.4975 9 -4.3 10 -3.05 11 -2.81 12 -1.74667 13 -1.725 14 -1.66 15 -1.318

.16 -1.07444 17 -0.77 18 -0.738333 19 -0.689 20 -0.675 21 -0.554 22 -0.485 23 -0.37 24 -0.235714 25 -0.2 26 -0.152857 27 -0.122222

.28 -0.06 29 0.00166667 30 0.21375 31 0.275 32 0.31 I33 0.67 34 0.85 Page 2

36 35 2.11286 1.125 37 2.51667 38 2.78 39 2.848 40 2.93333 41 2.98571 42 3.36 43 3.975 44 4.178 45 4.44833 46 5.19667 47 5.8 48 5.9 49 5.925 50 6.535 51 6.78 52 9.26667 53 11 54 13.745 55 21.69 Sen's Estimator (Median Q) is -0.06 Time Period Observations 1/11/2006 1 2/10/2006 1 4/7/2006 1

' 4/13/2006 1 5/19/2006 1 7/18/2006 1 10/18/2006 1 11/15/2006 1 1/2/2007 1 3/12/2007 1 6/11/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 21.1285 M1 = (55- 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.77 = Q(17)

Upper limit is 2.848 = 0(39)

-0.77 < 0 < 2.848 indicating no trend in data.

Page 3

Cs-1 37 6 Time-Series Graph of MWI05D 5

4 3L

.C. 0 0 CC ,C Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW105D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.22 U (1/10/2006 a) ND<3.82 U (1/9/2006 a) (3.22 - 3.82)/(2 - 1) -0.6 ND<2.79 U (2/13/2006 a) ND<3.82 U (1/9/2006 a) (2.79 - 3.82)/(3 - 1) -0.515 ND<3.97 U (3/17/2006 a) ND<3.82 U (1/9/2006 a) (3.97 - 3.82)/(4 - 1) 0.05 ND<4.28 U (3/19/2006 a) ND<3.82 U (1/9/2006 a) (4.28 - 3.82)/(5 - 1) 0.115 ND<5.36 U (4/13/2006 a) ND<3.82 U (1/9/2006 a) (5.36 - 3.82)/(6 - 1) 0.308 ND<3.55 OK (5/4/2006 a) ND<3.82 U (1/9/2006 a) (3.55 - 3.82)/(7 - 1) -0.045 ND<3.29 OK (7/19/2006 a) ND<3.82 U (1/9/2006 a) (3.29 - 3.82)/(8 - 1) -0.0757143 ND<3.32 OK (110/5/2006 a) ND<3.82 U (1/9/2006 a) (3.32 - 3.82)/(9 - 1) -0.0625 ND<3.34 OK (11/15/2006 a) ND<3.82 U (1/9/2006 a) (3.34 - 3.82)/(10 - 1) -0.0533333 ND<3.42 OK (1/2/2007 a) ND<3.82 U (1/9/2006 a) (3.42 - 3.82)/(11 - 1) -0.04 ND<2.81 OK (3/14/2007 a) ND<3.82 U (1/9/2006 a) (2.81 - 3.82)/(12 - 1) -0.0918182 ND<3.49 OK (6/12/2007 a) ND<3.82 U (1/9/2006 a) (3.49 - 3.82)/(13 - 1) -0.0275 ND<2.79 U (2/13/2006 a) ND<3.22 U (1/10/2006 a) (2.79 - 3.22)/(3 - 2) -0.43 ND<3.97 U (3/17/2006 a) ND<3.22 U (1/10/2006 a) (3.97 - 3.22)/(4 - 2) 0.375 ND<4.28 U (3/19/2006 a) ND<3.22 U (1/10/2006 a) (4.28 - 3.22)/(5 - 2) 0.353333

. ND<5.36 ND<3.55 ND<3.29 U (4/13/2006 a)

OK (5/4/2006 a)

OK (7/19/2006 a)

ND<3.22 ND<3.22 ND<3.22 U (1/10/2006 U (1/10/2006 U (1/10/2006 a) a)

a)

(5.36 (3.55 (3.29

- 3.22)/(6 - 2)

- 3.22)/(7 - 2)

- 3.22)/(8 - 2) 0.535 0.066 0.0116667 ND<3.32 OK (10/5/2006 a) ND<3.22 U (1/10/2006 a) 1(3.32 - 3.22)/(9 - 2) 0.0142857 ND<3.34 OK (11/15/2006 a) ND<3.22 U (1/10/2006 a) (3.34 - 3.22)/(10 - 2) 0.015 ND<3.42 OK (1/2/2007 a) ND<3.22 U (1/10/2006 a) (3.42 - 3.22)/(11 - 2) 0.0222222 ND<2.81 OK (3/14/2007 a) ND<3.22 U (1/10/2006 a) (2.81 - 3.22)/(12 - 2) -0.041 ND<3.49 OK (6/12/2007 a) ND<3.22 U (1/10/2006 a) (3.49 - 3.22)/(13 - 2) 0.0245455 ND<3.97 U (3/17/2006 a) ND<2.79 U (2/13/2006 a) (3.97 - 2.79)/(4 - 3) 1.18 ND<4.28 U (3/19/2006 a) ND<2.79 U (2/13/2006 a) (4.28 - 2.79)/(5 - 3) 0.745 ND<5.36 U (4/13/2006 a) ND<2.79 U (2/13/2006 a) (5.36 - 2.79)/(6 - 3) 0.856667 ND<3.55 OK (5/4/2006 a) ND<2.79 U (2/13/2006 a) (3.55 - 2.79)/(7 - 3) 0.19 ND<3.29 OK (7/19/2006 a) ND<2.79 U (2/13/2006 a) (3.29 - 2.79)/(8 - 3) 0.1 ND<3.32 OK (10/5/2006 a) ND<2.79 U (2/13/2006 a) (3.32- 2.79)/(9 - 3) 0.0883333 ND<3.34 OK (11/15/2006 a) ND<2.79 U (2/13/2006 a) (3.34 - 2.79)/(10- 3) 0.0785714 ND<3.42 OK (1/2/2007 a) ND<2.79 U (2/13/2006 a) (3.42 - 2.79)/(11 - 3) 0.07875 ND<2.81 OK (3/14/2007 a) ND<2.79 U (2/13/2006 a) (2.81 - 2.79)/(12 - 3) 0.00222222 ND<3.49 OK (6/12/2007 a) ND<2.79 U (2/13/2006 a) (3.49 - 2.79)/(13- 3) 0.07 ND<4.28 U (3/19/2006 a) ND<3.97 U (3/17/2006 a) (4.28 - 3.97)i(5 - 4) 0.31 ND<5.36 U (4/13/2006 a) ND<3.97 U (3/17/2006 a) (5.36 - 3.97)/(6 - 4) 0.695 ND<3.55 OK (5/4/2006 a) ND<3.97 U (3/17/2006 a) (3.55 - 3.97)/(7 - 4) -0.14 ND<3.29 OK (7/19/2006 a) ND<3.97 U (3/17/2006 a) (3.29 - 3.97)/(8 - 4) -0.17 ND<3.32 OK (10/5/2006 a) ND<3.97 U (3/17/2006 a) (3.32 - 3.97)/(9 - 4) -0.13 ND<3.34 OK (11/15/2006 a) ND<3.97 U (3/17/2006 a) (3.34 - 3.97)/(10 - 4) -0.105 ND<3.42 OK (1/2/2007 a) ND<3.97 U (3/17/2006 a) (3.42 - 3.97)/(11 - 4) -0.0785714 ND<2.81 OK (3/14/2007 a) ND<3.97 U (3/17/2006 a) (2.81 - 3.97)/(12 - 4) -0.145 O ND<3.49 OK (6/12/2007 a) ND<3.97 U (3/17/2006 a) (3.49 - 3.97)/(13 - 4) -0.0533333 ND<5.36 U (4/13/2006 a) ND<4.28 U (3/19/2006 a) (5.36 - 4.28)/(6 - 5) 1.08 Page 1

. ND<3.29 ND<3.55 ND<3.32 OK OK OK (7/19/2006 (5/4/2006 a)a)

(10/5/2006 a)

ND<4.28 ND<4.28 ND<4.28 U (3/19/2006 U (3/19/2006 U (3/19/2006 a) a)

a)

(3.55 (3.29 (3.32 4.28)/(7 - 5) 4.28)/(8 - 5) 4.28)/(9 - 5)

-0.365

-0.33

-0.24 ND<3.34 OK (11/15/2006 a) ND<4.28 U (3/19/2006 a) (3.34 - 4.28)/(10- 5) -0.188 ND<3.42 OK (1/2/2007 a) ND<4.28 U (3/19/2006 a) (3.42 - 4.28)/(11 - 5) -0.143333 ND<2.81 OK (3/14/2007 a) ND<4.28 U (3/19/2006 a) (2.81 - 4.28)/(12- 5) -0.21 ND<3.49 OK (6/12/2007 a) ND<4.28 U (3/19/2006 a) (3.49 - 4.28)/(13- 5) -0.09875 ND<3.55 OK (5/4/2006 a) ND<5.36 U (4/13/2006 a) (3.55 - 5.36)/(7 - 6) -1.81 ND<3.29 OK (7/19/2006 a) ND<5.36 U (4/13/2006 a) (3.29 - 5.36)/(8 - 6) -1.035 ND<3.32 OK (10/5/2006 a) ND<5.36 U (4/13/2006 a) (3.32 - 5.36)/(9 - 6) -0.68 ND<3.34 OK (11/15/2006 a) ND<5.36 U (4/13/2006 a) (3.34 - 5.36)/(10- 6) -0.505 ND<3.42 OK (1/2/2007 a) ND<5.36 U (4/13/2006 a) (3.42 - 5.36)/(11 - 6) -0.388 ND<2.81 OK (3/14/2007 a) ND<5.36 U (4/13/2006 a) (2.81 - 5.36)/(12- 6) -0.425 ND<3.49 OK (6/12/2007 a) ND<5.36 U (4/13/2006 a) (3.49 - 5.36)/(13 - 6) -0.267143 ND<3.29 OK (7/19/2006 a) ND<3.55 OK (5/4/2006 a) (3.29 - 3.55)/(8 - 7) -0.26 ND<3.32 OK (10/5/2006 a) ND<3.55 OK (5/4/2006 a) (3.32 - 3.55)/(9 - 7) -0.115 ND<3.34 OK (11/15/2006 a) ND<3.55 OK (5/4/2006 a) (3.34 - 3.55)/(10 - 7) -0.07 ND<3.42 OK (1/2/2007 a) ND<3.55 OK (5/4/2006 a) (3.42 - 3.55)/(11 - 7) -0.0325 ND<2.81 OK (3/14/2007 a) ND<3.55 OK (5/4/2006 a) (2.81 - 3.55)/(12 - 7) -0.148 ND<3.49 OK (6/12/2007 a) ND<3.55 OK (5/4/2006 a) (3.49 - 3.55)/(13 - 7) -0.01 ND<3.32 OK (10/5/2006 a) ND<3.29 OK (7/19/2006 a) (3.32 - 3.29)/(9 - 8) 0.03 ND<3.34 OK (11/15/2006 a) ND<3.29 OK (7/19/2006 a) (3.34 - 3.29)/(10 - 8) 0.025 ND<3.42 OK (1/2/2007 a) ND<3.29 OK (7/19/2006 a) (3.42 - 3.29)/(11 - 8) 0.0433333

. ND<2.81 ND<3.49 OK (3/14/2007 a)

OK (6/12/2007 a)

ND<3.29 ND<3.29 OK OK (7/19/2006 (7/19/2006 a) a)

(2.81 (3.49 3.29)/(12 - 8) 3.29)/(13 - 8)

-0.12 0.04 ND<3.34 OK (11/15/2006 a) ND<3.32 OK (10/5/2006 a) (3.34 - 3.32)/(10 - 9) 0.02 ND<3.42 OK (1/2/2007 a) ND<3.32 OK (10/5/2006 a) (3.42 - 3.32)/(11 - 9) 0.05 ND<2.81 OK (3/14/2007 a) ND<3.32 OK (10/5/2006 a) (2.81 - 3.32)/(12 - 9) -0.17 ND<3.49 OK (6/12/2007 a) ND<3.32 OK (10/5/2006 a) (3.49 - 3.32)/(13 - 9) 0.0425 ND<3.42 OK (1/2/2007 a) ND<3.34 OK (11/15/2006 a) (3.42- 3.34)/(11 - 10) 0.08 ND<2.81 OK (3/14/2007 a) ND<3.34 OK (11/15/2006 a) (2.81 - 3.34)/(12 - 10) -0.265 ND<3.49 OK (6/12/2007 a) ND<3.34 OK (11/15/2006 a) (3.49 - 3.34)/(13 - 10) 0.05 ND<2.81 OK (3/14/2007 a) ND<3.42 OK (1/2/2007 a) -0.61 (2.81 - 3.42)/(12- 11)

ND<3.49 OK (6/12/2007 a) ND<3.42 OK (1/2/2007 a) (3.49- 3.42)/(13 - 11) 0.035 ND<3.49 OK (6/12/2007 a) ND<2.81 OK (3/14/2007 a) (3.49 - 2.81)/(13 - 12) 0.68 Number of Q values = 78 Ordered Q Values n Q 1 -1.81 2 -1.035 3 -0.68 4 -0.61 5 -0.6 6 -0.515 7 -0.505 8 -0.43 9 -0.425 Page 2

11 10 -0.365

-0.388 12 -0.33 13 -0.267143 14 -0.265 15 -0.26 16 -0.24 17 -0.21 18 -0.188 19 -0.17 20 -0.17 21 -0.148 22 -0.145 23 -0.143333 24 -0.14 25 -0.13 26 -0.12 27 -0.115 28 -0.105 29 -0.09875 30 -0.0918182 31 -0.0785714 32 -0.0757143 33 -0.07 34 -0.0625 35 -0.0533333 36 -0.0533333 37 -0.045 38 -0.041 39 -0.04 40 -0.0325 41 -0.0275 42 -0.01 43 0.00222222 44 0.0116667 45 0.0142857 46 0.015 47 0.02 48 0.0222222 49 0.0245455 50 0.025 51 0.03 52 0.035 53 0.04 54 0.0425 55 0.0433333 56 0.05 57 0.05 58 0.05 59 0.066 60 0.07 61 0.0785714 62 0.07875 63 0.08 64 0.0883333 65 0.1 66 0,115 Page 3

. 68 67 69 0.308 0.19 0.31 70 0.353333 71 0.375 72 0.535 73 0.68 74 0.695 75 0.745 76 0.856667 77 1.08 78 1.18 Sen's Estimator (Median Q) is -0.03625 Time Period Observations 1/9/2006 1 1/10/2006 1 2/13/2006 1 3/17/2006 1 3/19/2006 1 4/13/2006 1 5/4/2006 1 7/19/2006 1 10/5/2006 1 11/15/2006 1 1/2/2007 1 3/14/2007 1 S 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a =4836 b = 15444 c =312 Group Variance = 268.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 26.9609 M1 = (78- 26.9609)/2.0 = 25.5196 M2 = (78 + 26.9609)/2.0 + 1 = 53.4804 Lower limit is -0.12 = Q(26)

Upper limit is 0.04 = Q(53)

-0.12 < 0 < 0.04 indicating no trend in data.

Page 4

Cs-1 37

-j U

0.

0 Co C

0) 0 C

0 0

(0D 0 0C--

(0 0 (0C) C C-- 0 0

o ('4 '

QN(4 (N

('4 0)

(0

- - (O Sample Date Page 1

Sen's Slope Analysis' Parameter: Cs-137 Location: MW105S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.47 U (2/13/2006 a) ND<3.91 U (1/9/2006 a) (3.47- 3.91)/(2 - 1) -0.44 ND<4.15 U (3/17/2006 a) ND<3.91 U (1/9/2006 a) (4.15- 3.91)/(3 - 1) 0.12 ND<5.43 U (4/13/2006 a) ND<3.91 U (1/9/2006 a) (5.43 - 3.91)/(4 - 1) 0.506667 ND<4.04 OK (5/4/2006 a) ND<3.91 U (1/9/2006 a) (4.04 - 3.91)/(5 - 1) 0.0325 ND<3.275 OK (7/19/2006 ~) ND<3.91 U (1/9/2006 a) (3.275 - 3.91)/(6 - 1) -0.127 ND<3.79 OK (10/5/2006 a) ND<3.91 U (1/9/2006 a) (3.79 - 3.91)/(7 - 1) -0.02 ND<1.99 OK (11/15/2006 a) ND<3.91 U (1/9/2006 a) (1.99- 3.91)/(8 - 1) -0.274286 ND<3.75 OK (1/2/2007 a) ND<3.91 U (1/9/2006 a) (3.75 - 3.91)/(9 - 1) -0.02 ND<2.68 OK (3/14/2007 a) ND<3.91 U (1/9/2006 a) (2.68 - 3.91)/(10 - 1) -0.136667 ND<3.76 OK (6/12/2007 a) ND<3.91 U (1/9/2006 a) (3.76 - 3.91)/(11 - 1)- -0.015 ND<4.15 U (3/17/2006 a) ND<3.47 U (2/13/2006 a) (4.15- 3.47)/(3 - 2) 0.68 ND<5.43 U (4/13/2006 a) ND<3.47 U (2/13/2006 a) (5.43 - 3.47)/(4 - 2) 0.98 ND<4.04 OK (5/4/2006 a) ND<3.47 U (2/13/2006 a) (4.04 - 3.47)/(5 - 2) 0.19 ND<3.275 OK (7/19/2006 ~) ND<3.47 U (2/13/2006 a) (3.275 - 3.47)/(6 - 2) -0.04875 ND<3.79 OK (10/5/2006 a) ND<3.47 U (2/13/2006 a) (3.79 - 3.47)/(7 - 2) 0.064

. ND<1.99 OK (11/15/2006 a)

ND<3.75 OK (1/2/2007 a)

ND<2.68 OK (3/14/2007 a)

ND<3.47 ND<3.47 ND<3.47 U (2/13/2006 U (2/13/2006 U (2/13/2006 a) a)

a)

(1.99 - 3.47)/(8 - 2)

(3.75 - 3.47)/(9 - 2)

(2.68 - 3.47)/(10 - 2)

-0.246667 0.04

-0.09875 ND<3.76 OK (6/12/2007 a) ND<3.47 U (2/13/2006 a) (3.76 - 3.47)/(11 - 2) 0.0322222 ND<5.43 U (4/13/2006 a) ND<4.15 U (3/17/2006 a) (5.43 - 4.15)/(4 - 3) 1.28 ND<4.04 OK (5/4/2006 a) ND<4.15 U (3/17/2006 a) (4.04 - 4.15)/(5 - 3) -0.055 ND<3.275 OK (7/19/2006 ~) ND<4.15 U (3/17/2006 a) (3.275 - 4.15)/(6 - 3) -0.291667 ND<3.79 OK (10/5/2006 a) ND<4.15 U (3/17/2006 a) (3.79 - 4.15)/(7 - 3) -0.09 ND<1.99 OK (11/15/2006 a) ND<4.15 U (3/17/2006 a) (1.99- 4.15)/(8 - 3) -0.432 ND<3.75 OK (1/2/2007 a) ND<4.15 U (3/17/2006 a) (3.75 - 4.15)/(9 - 3) -0.0666667 ND<2.68 OK (3/14/2007 a) ND<4.15 U (3/17/2006 a) (2.68 - 4.15)/(10- 3) -0.21 ND<3.76 OK (6/12/2007 a) ND<4.15 U (3/17/2006 a) (3.76 - 4.15)/(11 - 3) -0.04875 ND<4.04 OK (5/4/2006 a) ND<5.43 U (4/13/2006 a) (4.04 - 5.43)/(5 - 4) -1.39 ND<3.275 OK (7/19/2006 ~) ND<5.43 U (4/13/2006 a) (3.275 - 5.43)/(6 - 4) -1.0775 ND<3.79 OK (10/5/2006 a) ND<5.43 U (4/13/2006 a) (3.79 - 5.43)/(7 - 4) -0.546667 ND<1.99 OK (11/15/2006 a) ND<5.43 U (4/13/2006 a) (1.99 - 5.43)/(8 - 4) -0.86 ND<3.75 OK (1/2/2007 a) ND<5.43 U (4/13/2006 a) (3.75 - 5.43)/(9 - 4) -0.336 ND<2.68 OK (3/14/2007 a) ND<5.43 U (4/13/2006 a) (2.68 - 5.43)/(10 - 4) -0.458333 ND<3.76 OK (6/12/2007 a) ND<5.43 U (4/13/2006 a) (3.76 - 5.43)/(11 - 4) -0.238571 ND<3.275 OK (7/19/2006 -) ND<4.04 OK (5/4/2006 a) (3.275 - 4.04)/(6 - 5) -0.765 ND<3.79 OK (10/5/2006 a) ND<4.04 OK (5/4/2006 a) (3.79 - 4.04)/(7 - 5) -0.125 ND<1.99 OK (11/15/2006 a) ND<4.04 OK (5/4/2006 a) (1.99 - 4.04)/(8 - 5) -0.683333 ND<3.75 OK (1/2/2007 a) ND<4.04 OK (5/4/2006 a) (3.75 - 4.04)/(9 - 5) -0.0725 ND<2.68 OK (3/14/2007 a) ND<4.04 OK (5/4/2006 a) (2.68 - 4.04)/(10 - 5) -0.272 ND<3.76 OK (6/12/2007 a) ND<4.04 OK (5/4/2006 a) (3.76 - 4.04)/(11 - 5) -0.0466667

. ND<3.79 OK (10/5/2006 a)

ND<1.99 OK (11/15/2006 a)

ND<3.275 OK (7/19/2006 ~)

(3.79 - 3.275)/(7 - 6)

(1.99 - 3.275)/(8 - 6) 0.515

-0.6425 Page 1

. ND<2.68 ND<3.75 OK OK (3/14/2007 (1/2/2007 a)a)

ND<3.76 OK (6/12/2007 a)

ND<3.275 OK (7/19/2006 ~)

(3.75 - 3.275)/(9 - 6)

(2.68- 3.275)/(10- 6)

(3.76 - 3.275)/(11 - 6) 0.158333

-0.14875 0.097 ND<1.99 OK (11/15/2006 a) ND<3.79 OK (10/5/2006 a) (1.99 - 3.79)/(8 - 7) -1.8 ND<3.75 OK (1/2/2007 a) ND<3.79 OK (10/5/2006 a) (3.75 - 3.79)/(9 - 7) -0.02 ND<2.68 OK (3/14/2007 a) ND<3.79 OK (10/5/2006 a) (2.68- 3.79)/(10- 7) -0.37 ND<3.76 OK (6/12/2007 a) ND<3.79 OK (10/5/2006 a) (3.76 - 3.79)/(11 - 7) -0.0075 ND<3.75 OK (1/2/2007 a) ND<1.99 OK (11/15/2006 a) (3.75 - 1.99)/(9 - 8) 1.76 ND<2.68 OK (3/14/2007 a) ND<1.99 OK (11/15/2006 a) (2.68 - 1.99)/(10 - 8) 0.345 ND<3.76 OK (6/12/2007 a) ND<1.99 OK (11/15/2006 a) (3.76 - 1.99)/(11 - 8) 0.59 ND<2.68 OK (3/14/2007 a) ND<3.75 OK (1/2/2007 a) (2.68 - 3.75)/(10 - 9) -1.07 ND<3.76 OK (6/12/2007 a) ND<3.75 OK (1/2/2007 a) (3.76 - 3.75)/(11 - 9) 0.005 ND<3.76 OK (6/12/2007 a) ND<2.68 OK (3/14/2007 a) (3.76 - 2.68)/(11 -10) 1.08 Number of Q values = 55 Ordered o Values n Q 1 -1.8 2 -1.39 3 -1.0775 4 -1.07 5 -0.86 6 -0.765 7 -0.683333 8 -0.6425 9 -0.546667 10 -0.458333 11 -0.44 12 -0.432 13 -0.37 14 -0.336 15 -0.291667 16 -0.274286 17 -0.272 18 -0.246667 19 -0.238571 20 -0.21 21 -0.14875 22 -0.136667 23 -0.127 24 -0.125 25 -0.09875 26 -0.09 27 -0.0725 28 -0.0666667 29 -0.055 30 -0.04875

. 31 32 33

-0.04875

-0.0466667

-0.02 34 -0.02 Page 2

. 36 35 37

-0.015

-0.02

-0.0075 38 0.005 39 0.0322222 40 0.0325 41 0.04 42 0.064 43 0.097 44 0.12 45 0.158333 46 0.19 47 0.345 48 0.506667 49 0.515 50 0.59 51 0.68 52 0.98' 53 1.08 54 1.28 55 1.76 Sen's Estimator (Median Q) is -0.0666667 Time Period Observations 1/9/2006 1 2/13/2006 1 3/17/2006 1 O 4/13/2006 1 5/4/2006 1 7/19/2006 1 10/5/2006 1 11/15/2006 1 1/2/2007 1

'3/14/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.272 - Q(17)

Upper limit is 0.0322222 = Q(39)

-0.272 < 0 < 0.0322222 indicating no trend in data.

Page 3

Cs-137 0.

0 (0 COr (D I 0 CD 0 o 0 0 0 C0 0 0 0 0N ' CN C) C") 04j C14 Q C') CDC')

M ( 00 c')

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW106D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<2.78 U (2/12/2006 a) ND<3.65 U (1/9/2006 a) (2.78- 3.65)/(2 - 1) -0.87 ND<3.65 U (2/16/2006 a) ND<3.65 U (1/9/2006 a) (3.65 - 3.65)/(3 - 1) 0 ND<3.33 U (3/19/2006 a) ND<3.65 U (1/9/2006 a) (3.33 - 3.65)/(4 - 1) -0.106667 ND<3.5 U (4/19/2006 a) ND<3.65 U (1/9/2006 a) (3.5 - 3.65)/(5 - 1) -0.0375 ND<3.5 OK (5/18/2006 a) ND<3.65 U (1/9/2006 a) (3.5 - 3.65)/(6 - 1) -0.03 ND<4.36 OK (7/11/2006 a) ND<3.65 U (1/9/2006 a) (4.36 - 3t65)/(7 - 1) 0.118333 ND<3.59 OK (10/18/2006 a) ND<3.65 U (1/9/2006 a) (3.59 - 3.65)/(8 - 1) -0.00857143 ND<3.97 OK (11/15/2006 a) ND<3.65 U (1/9/2006 a) (3.97 - 3.65)/(9 - 1) 0.04 ND<3.13 OK (1/5/2007 a) ND<3.65 U (1/9/2006 a) (3.13 - 3.65)/(10 - 1) -0.0577778 ND<6.94 OK (3/21/2007 a) ND<3.65 U (1/9/2006 a) (6.94 - 3.65)/(11 - 1) 0.329 ND<5.34 OK (4/9/2007 a) ND<3.65 U (1/9/2006 a) (5.34- 3.65)/(12 - 1) 0.153636 ND<5.445 OK (6/13/2007 ~) ND<3.65 U (1/9/2006 a) (5.445 - 3.65)/(13 - 1) 0.149583 ND<3.65 U (2/16/2006 a) ND<2.78 U (2/12/2006 a) (3.65 - 2.78)/(3 - 2) 0.87 ND<3.33 U (3/19/2006 a) ND<2.78 U (2/12/2006 a) (3.33 - 2.78)/(4 - 2) 0.275 ND<3.5 U (4/19/2006 a) ND<2.78 U (2/12/2006 a) (3.5 - 2.78)/(5 - 2) 0.24 ND<3.5 OK (5/18/2006 a) ND<2.78 U (2/12/2006 a) (3.5 - 2.78)/(6 - 2) 0.18 O ND<4.36 OK (7/11/2006 a) ND<2.78 U,(2/12/2006 a) (4.36 - 2.78)/(7 - 2) 0.316 ND<3.59 OK (10/18/2006 a) ND<2.78 U (2/12/2006 a) (3.59 - 2.78)/(8 - 2) 0.135 ND<3.97 OK (11/15/2006 a) ND<2.78 U (2/12/2006 a) (3.97 - 2.78)/(9 - 2) 0.17 ND<3.13 OK (1/5/2007 a) ND<2.78 U (2/12/2006 a) (3.13- 2.78)/(10- 2) 0.04375 ND<6.94 OK (3/21/2007 a) ND<2.78 U (2/12/2006 a) (6.94 - 2.78)/(11 - 2) 0.462222 ND<5.34 OK (4/9/2007 a) ND<2.78 U (2/12/2006 a) (5.34 - 2.78)/(12 - 2) 0.256 ND<5.445 OK (6/13/2007 ~) ND<2.78 U (2/12/2006 a) (5.445 - 2.78)/(13 - 2) 0.242273 ND<3.33 U (3/19/2006 a) ND<3.65 U (2/16/2006 a) (3.33 - 3.65)/(4 - 3) -0.32 ND<3.5 U (4/19/2006 a) ND<3.65 U (2/16/2006 a) (3.5 - 3.65)/(5 - 3) -0.075 ND<3.5 OK (5/18/2006 a) ND<3.65 U (2/16/2006 a) (3.5 - 3.65)/(6 - 3) -0.05 ND<4.36 OK (7/11/2006 a) ND<3.65 U (2/16/2006 a) (4.36 - 3.65)/(7 - 3) 0.1775 ND<3.59 OK (10/18/2006 a) ND<3.65 U (2/16/2006 a) (3.59 - 3.65)/(8 - 3) -0.012 ND<3.97 OK (11/15/2006 a) ND<3.65 U (2/16/2006 a) (3.97 - 3.65)/(9 - 3) 0.0533333 ND<3.13 OK (1/5/2007 a) ND<3.65 U (2/16/2006 a) (3.13- 3.65)/(10- 3) -0.0742857 ND<6.94 OK (3/21/2007 a) ND<3.65 U (2/16/2006 a) (6.94 - 3.65)/(11 - 3) 0.41125 ND<5.34 OK (4/9/2007 a) ND<3.65 U (2/16/2006 a) (5.34 - 3.65)/(12- 3) 0.187778 ND<5.445 OK (6/13/2007 ~) ND<3.65 U (2/16/2006 a) (5.445 - 3.65)/(13 - 3) 0.1795 ND<3.5 U (4/19/2006 a) ND<3.33 U (3/19/2006 a) (3.5 - 3.33)/(5 - 4) 0.17 ND<3.5 OK (5/18/2006 a) ND<3.33 U (3/19/2006 a) (3.5 - 3.33)/(6 - 4) 0.085 ND<4.36 OK (7/11/2006 a) ND<3.33 U (3/19/2006 a) (4.36 - 3.33)/(7 - 4) 0.343333 ND<3.59 OK (10/18/2006 a) ND<3.33 U (3/19/2006 a) (3.59 - 3.33)/(8 - 4) 0.065 ND<3.97 OK (11/15/2006 a) ND<3.33 U (3/19/2006 a) (3.97 - 3.33)/(9 - 4) 0.128 ND<3.13 OK (1/5/2007 a) ND<3.33 U (3/19/2006 a) (3.13 - 3.33)/(10 - 4) -0.0333333 ND<6.94 OK (3/21/2007 a) ND<3.33 U (3/19/2006 a) (6.94 - 3.33)/(11 - 4) 0.515714

. ND<5.34 OK (4/9/2007 a)

ND<5.445 OK (6/13/2007 ~)

ND<3.33 ND<3.33 U (3/19/2006 U (3/19/2006 a) a)

(5.34 - 3.33)/(12 - 4)

(5.445 - 3.33)/(13 - 4) 0.25125 0.235 ND<3.5 OK (5/18/2006 a) ND<3.5 U (4/19/2006 a) (3.5 - 3.5)/(6 - 5) 0 Page 1

.ND<4.36 ND<3.59 OK OK (10/18/2006 (7/11/2006 a)a)

ND<3.97 OK (11/15/2006 a)

ND<3.5 ND<3.5 ND<3.5 U (4/19/2006 U (4/19/2006 U (4/19/2006 a) a)

a)

(4.36 - 3.5)/(7 - 5)

(3.59 - 3.5)/(8 - 5)

(3.97 - 3.5)/(9 - 5) 0.43 0.03 0.1175 ND<3.13 OK (1/5/2007 a) ND<3.5 U (4/19/2006 a) (3.13 - 3.5)/(10 - 5) -0.074 ND<6.94 OK (3/21/2007 a) ND<3.5 U (4/19/2006 a) (6.94 - 3.5)/(11 - 5) 0.573333 ND<5.34 OK (4/9/2007 a) ND<3.5 U (4/19/2006 a) (5.34 - 3.5)/(12 - 5) 0.262857 ND<5.445 OK (6/13/2007 ~) ND<3.5 U (4/19/2006 a) (5.445 - 3.5)/(13 - 5) 0.243125 ND<4.36 OK (7/11/2006 a) ND<3.5 OK (5/18/2006 a) (4.36 - 3.5)/(7 - 6) 0.86 ND<3.59 OK (10/18/2006 a) ND<3.5 OK (5/18/2006 a) (3.59 - 3.5)/(8 - 6) 0.045 ND<3.97 OK (11/15/2006 a) ND<3.5 OK (5/18/2006 a) (3.97 - 3.5)/(9 - 6) 0.156667 ND<3.13 OK (1/5/2007 a) ND<3.5 OK (5/18/2006 a) (3.13 - 3.5)/(10- 6) -0.0925 ND<6.94 OK (3/21/2007 a) ND<3.5 OK (5/18/2006 a) (6.94 - 3.5)/(11 - 6) 0.688 ND<5.34 OK (4/9/2007 a) ND<3.5 OK (5/18/2006 a) (5.34- 3.5)/(12- 6) 0.306667 ND<5.445 OK (6/13/2007 ~) ND<3.5 OK (5/18/2006 a) (5.445 - 3.5)/(13 - 6) 0.277857 ND<3.59 OK (10/18/2006 a) ND<4.36 OK (7/11/2006 a) (3.59 - 4.36)/(8 - 7) -0.77 ND<3.97 OK (11/15/2006 a) ND<4.36 OK (7/11/2006 a) (3.97 - 4.36)/(9 - 7) -0.195' ND<3.13 OK (1/5/2007 a) ND<4.36 OK (7/11/2006 a) (3.13- 4.36)/(10- 7) -0.41 ND<6.94 OK (3/21/2007 a) ND<4.36 OK (7/11/2006 a) (6.94 - 4.36)/(11 - 7) 0.645 ND<5.34 OK (4/9/2007 a) ND<4.36 OK (7/11/2006 a) (5.34 - 4.36)/(12- 7) 0.196 ND<5.445 OK (6/13/2007 ~) ND<4.36 OK (7/11/2006 a) (5.445 - 4.36)/(13 - 7) 0.180833 ND<3.97 OK (11/15/2006 a) ND<3.59 OK (10/18/2006 a) (3.97 - 3.59)/(9 - 8) 0.38 ND<3.13 OK (1/5/2007 a) ND<3.59 OK (10/18/2006 a) (3.13- 3.59)/(10- 8) -0.23 ND<6.94 OK (3/21/2007 a) ND<3.59 OK (10/18/2006 a) (6.94 - 3.59)/(11 - 8) 1.11667 ND<5.34 OK (4/9/2007 a) ND<3.59 OK (10/18/2006 a) (5.34 -,3.59)/(12 - 8) 0.4375 O ND<5.445 OK (6/13/2007 ~) ND<3.59 OK (10/18/2006 a) (5.445 - 3.59)/(13- 8) 0.371 ND<3.13 OK (1/5/2007 a) ND<3.97 OK (11/15/2006 a) (3.13- 3.97)/(10- 9) -0.84 ND<6.94 OK (3/21/2007 a) ND<3.97 OK (11/15/2006 a) (6.94 - 3.97)/(11 - 9) 1.485 ND<5.34 OK (4/9/2007 a) ND<3.97 OK (11/15/2006 a) (5.34 - 3.97)/(12- 9) 0.456667 ND<5.445 OK (6/13/2007 ~) ND<3.97 OK (11/15/2006 a) (5.445 - 3.97)/(13 - 9) 0.36875 ND<6.94 OK (3/21/2007 a) ND<3.13 OK (1/5/2007 a) (6.94 - 3.13)/(11 - 10) 3.81 ND<5.34 OK (4/9/2007 a) ND<3.13 OK (1/5/2007 a) (5.34- 3.13)/(12 - 10) 1.105 ND<5.445 OK (6/13/2007 ~) ND<3.13 OK (1/5/2007 a) (5.445 - 3.13)/(13 - 10) 0.771667 ND<5.34 OK (4/9/2007 a) (5.34 - 6.94)/(12 - 11) 71.6 ND<6.94 OK (3/21/2007 a)

ND<5.445 OK (6/13/2007 ~) ND<6.94 OK (3/21/2007 a) (5.445 - 6.94)/(13 - 11) -0.7475 ND<5.445 OK (6/13/2007 ~) ND<5.34 OK (4/9/2007 a) (5.445 - 5.34)/(13 - 12) 0.105 Number of Q values = 78 Ordered Q Values n Q 1 -1.6 2 -0.87 3 -0.84.

4 -0.77 5 -0.7475 6 -0.41 7 -0.32 8 -0.23 9 -0.195 Page 2

-0.106667

. 11 10 -0.0925 12 -0.075 13 -0.0742857 14 -0.074 15 -0.0577778 16 -0.05 17 -0.0375 18 -0.0333333 19 -0.03 20 -0.012 21 -0.00857143 22 0 23 0 24 0.03 25 0.04 26 0.04375 27 0.045 28 0.0533333 29 0.065 30 0.085 31 0.105 32 0.1175 33 0.118333 34 0.128 35 0.135 36 0.149583

. 37 38 39 0.153636 0.156667 0.17 40 0.17 41 0.1775 42 0.1795 43 0.18 44 0.180833 45 0.187778 46 0.196 47 0.235 48 0.24 49 0.242273 50 0.243125 51 0.25125 52 0.256 53 0.262857 54 0.275 55 0.277857 56 0.306667 57 0.316 58 0.329 59 0.343333 60 0.36875 61 0.371 62 0.38 63 0.41125 64 0.43 65 0.4375 66 0.456667 Page 3

. 68 67 69 0.515714 0.462222 0.573333

-70 0.645 71 0.688 72 0.771667 73 0.86 74 0.87 75 1.105 76 1.11667 77 1.485 78 3.81 Sen's Estimator (Median Q) is 0.17 Tied Group Value Members 1 3.65 2 2 3.5 2 Time Period Observations 1/9/2006 1 2/12/2006 1 2/16/2006 1 3/19/2006 1 4/19/2006 1 5/18/2006 1 7/11/2006 1

. 10/18/2006 11/15/2006 1/5/2007 1

1 1

3/21/2007 1 4/9/2007 1 6/13/2007 1 There are 0 time periods with multiple data A = 36 B= 0 C=O D=0 E=4 F=0 a = 4836 b = 15444 c =312 Group Variance = 266.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 26.8603 M1 = (78 - 26.8603)/2.0 = 25.5698 M2 = (78 + 26.8603)/2.0 + 1 = 53.4302 Lower limit is 0.04375 = Q(26)

Upper limit is 0.262857 = Q(53) 0.04375 > 0 indicating an upward trend in data.

Page 4

0 Cs-I 37 Time-Series Graph of MWI06S 0.

1f c

0 C) 0 I I I I I I t0 C0 C) 0 I- 1.- 0 0 C.D 0 00 0 0 0 0 0 0 (N C) C')

C'.

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW106S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<4.29 U (2/24/2006 a) 2.76 U (1/10/2006 a) (4.29- 2.76)/(2 - 1) 1.53 ND<3.59 U (4/10/2006 a) 2.76 U (1/10/2006 a) (3.59- 2.76)/(3 - 1) 0.415 ND<3.15 U (4/19/2006 a) 2.76 U (1/10/2006 a) (3.15- 2.76)/(4 - 1) 0.13 ND<2.95 OK (5/18/2006 a) 2.76 U (1/10/2006 a) (2.95- 2.76)/(5 - 1) 0.0475 ND<3.94 OK (5/19/2006 a) 2.76 U (1/10/2006 a) (3.94 - 2.76)/(6 - 1) 0.236 ND<3.69 OK (7/11/2006 a) 2.76 U (1/10/2006 a) (3.69 - 2.76)/(7 - 1) 0.155 ND<3.71 OK (10/6/2006 a) 2.76 U (1/10/2006 a) (3.71 - 2.76)/(8 - 1) 0.135714 ND<1.62 OK (11/15/2006 a) 2.76 U (1/10/2006 a) (1.62 - 2.76)/(9 - 1) -0.1425 ND<3.33 OK (1/4/2007 a) 2.76 U (1/10/2006 a) (3.33 - 2.76)/(10 - 1) 0.0633333 ND<2.92 OK (3/14/2007 a) 2.76 U (1/10/2006 a) (2.92 - 2.76)/(11 - 1) 0.016 ND<3.96 OK (4/9/2007 ~) 2.76 U (1/10/2006 a) (3.96 - 2.76)/(12 - 1) 0.109091 ND<4.48 OK (6/12/2007 a) 2.76 U (1/10/2006 a) (4.48 - 2.76)/(13 - 1) 0.143333 ND<3.59 U (4/10/2006 a) ND<4.29 U (2/24/2006 a) (3.59 - 4.29)/(3 - 2) -0.7 ND<3.15 U (4/19/2006 a) ND<4.29 U (2/24/2006 a) (3.15- 4.29)/(4- 2) -0.57 ND<2.95 OK (5/18/2006 a) ND<4.29 U (2/24/2006 a) (2.95 - 4.29)/(5 - 2) -0.446667 ND<3.94 OK (5/19/2006 a) ND<4.29 U (2/24/2006 a) (3.94 - 4.29)/(6 - 2) -0.0875 O ND<3.69 ND<3.71 OK (7/11/2006 a)

OK (10/6/2006 a)

ND<4.29 ND<4.29 U (2/24/2006 U (2/24/2006 a) a)

(3.69 -

(3.71 -

4.29)/(7 - 2) 4.29)/(8 - 2)

-0.12

-0.0966667 ND<1.62 OK (11/15/2006 a) ND<4.29 U (2/24/2006 a) (1.62 - 4.29)/(9 - 2) -0.381429 ND<3.33 OK (1/4/2007 a) ND<4.29 U (2/24/2006 a) (3.33 - 4.29)/(10 - 2) -0.12 ND<2.92 OK (3/14/2007 a) ND<4.29 U (2/24/2006 a) (2.92 - 4.29)/(11 - 2) -0.152222 ND<3.96 OK (4/9/2007 -) ND<4.29 U (2/24/2006 a) (3.96 - 4.29)/(12 - 2) -0.033 ND<4.48 OK (6/12/2007 a) ND<4.29 U (2/24/2006 a) (4.48 - 4.29)/(13 - 2) 0.0172727 ND<3.15 U (4/19/2006 a) ND<3.59 U (4/10/2006 a) (3.15 - 3.59)/(4 - 3) -0.44 ND<2.95 OK (5/18/2006 a) ND<3.59 U (4/10/2006 a) (2.95 - 3.59)/(5 - 3) -0.32 ND<3.94 OK (5/19/2006 a) ND<3.59 U (4/10/2006 a) (3.94 - 3.59)/(6 - 3) 0.116667 ND<3.69 OK (7/11/2006 a) ND<3.59 U (4/10/2006 a) (3.69 - 3.59)/(7 - 3) 0.025 ND<3.71 OK (10/6/2006 a) ND<3.59 U (4/10/2006 a) (3.71 - 3.59)/(8 - 3) 0.024 ND<1.62 OK (11/15/2006 a) ND<3.59 U (4/10/2006 a) (1.62 - 3.59)/(9 - 3) -0.328333 ND<3.33 OK (1/4/2007 a) ND<3.59 U (4/10/2006 a) (3.33- 3.59)/(10- 3) -0.0371429 ND<2.92 OK (3/14/2007 a) ND<3.59 U (4/10/2006 a) (2.92 - 3.59)/(11 - 3) -0.08375 ND<3.96 OK (4/9/2007 -) ND<3.59 U (4/10/2006 a) (3.96 - 3.59)/(12- 3) 0.0411111 ND<4.48 OK (6/12/2007 a) ND<3.59 U (4/10/2006 a) (4.48- 3.59)/(13- 3) 0.089 ND<2.95 OK (5/18/2006 a) ND<3.15 U (4/19/2006 a) (2.95 - 3.15)/(5- 4) -0.2 ND<3.94 OK (5/19/2006 a) ND<3.15 U (4/19/2006 a) (3.94- 3.15)/(6 - 4) 0.395 ND<3.69 OK (7/11/2006 a) ND<3.15 U (4/19/2006 a) (3.69 - 3.15)/(7 - 4). 0.18 ND<3.71 OK (10/6/2006 a) ND<3.15 U (4/19/2006 a) (3.71 - 3.15)/(8 - 4) 0.14 ND<1.62 OK (11/15/2006 a) ND<3.15 U (4/19/2006 a) (1.62- 3.15)/(9 - 4) -0.306 ND<3.33 OK (1/4/2007 a) ND<3.15 U (4/19/2006 a) (3.33- 3.15)/(10- 4) 0.03 ND<2.92 OK (3/14/2007 a) ND<3.15 U (4/19/2006 a) (2.92 - 3115)/(11 - 4) -0.0328571 ND<3.96 OK (4/9/2007 -) ND<3.15 U (4/19/2006 a) (3.96 - 3.15)/(12 - 4) 0.10125 ND<4.48 OK (6/12/2007 a) ND<3.15 U (4/19/2006 a) (4.48 - 3.15)/(13 - 4) 0.147778 ND<3.94 OK (5/19/2006 a) ND<2.95 OK (5/18/2006 a) (3.94 - 2.95)/(6 - 5) 0.99 Page 1

.* ND<3.71 ND<3.69 OK OK ND<1.62 OK (10/6/2006 (7/11/2006 a) a)

(11/15/2006 a)

ND<2.95 ND<2.95 ND<2.95 OK OK OK (5/18/2006 (5/18/2006 (5/18/2006 a) a)

a)

(3.69 - 2.95)/(7 - 5)

(3.71 - 2.95)/(8 - 5)

(1.62 - 2.95)/(9- 5)-

0.37 0.253333

-0.3325 ND<3.33 OK (1/4/2007 a) ND<2.95 OK (5/18/2006 a) (3.33 - 2.95)/(10- 5) 0.076 ND<2.92 OK (3/14/2007 a) ND<2.95 OK (5/18/2006 a) (2.92 - 2.95)/(11 - 5) -0.005 ND<3.96 OK (4/9/2007 -) ND<2.95 OK (5/18/2006 a) (3.96- 2.95)/(12- 5) 0.144286 ND<4.48 OK (6/12/2007 a) ND<2.95 OK (5/18/2006 a) (4.48 - 2.95)/(13- 5) 0.19125 ND<3.69 OK (7/11/2006 a) ND<3.94 OK (5/19/2006 a) (3.69 - 3.94)/(7 - 6) -0.25 ND<3.71 OK (10/6/2006 a) ND<3.94 OK (5/19/2006 a) (3.71 - 3.94)/(8 - 6) -0.115 ND<1.62 OK (11/15/2006 a) ND<3.94 OK (5/19/2006 a) (1.62 - 3.94)/(9 - 6) -0.773333 ND<3.33 OK (1/4/2007 a) ND<3.94 OK (5/19/2006 a) (3.33 - 3.94)/(10 - 6) -0.1525 ND<2.92 OK (3/14/2007 a) ND<3.94 OK (5/19/2006 a) (2.92 - 3.94)/(11 - 6) -0.204 ND<3.96 OK (4/9/2007 -) ND<3.94 OK (5/19/2006 a) (3.96 - 3.94)/(12 - 6) 0.00333333 ND<4.48 OK (6/12/2007 a) ND<3.94 OK (5/19/2006 a) (4.48 - 3.94)/(13 - 6) 0.0771429 ND<3.71 OK (10/6/2006 a) ND<3.69 OK (7/11/2006 a) (3.71 - 3.69)/(8 - 7) 0.02 ND<1.62 OK (11/15/2006 a) ND<3.69 OK (7/11/2006 a) (1.62 - 3.69)/(9 - 7) -1.035 ND<3.33 OK (1/4/2007 a) ND<3.69 OK (7/11/2006 a) (3.33 - 3.69)/(10 - 7) -0.12 ND<2.92 OK (3/14/2007 a) ND<3.69 OK (7/11/2006 a) (2.92 - 3.69)/(11 - 7) -0.1925 ND<3.96 OK (4/9/2007 -) ND<3.69 OK (7/11/2006 a) (3.96 - 3.69)/(12 - 7) 0.054 ND<4.48 OK (6/12/2007 a) ND<3.69 OK (7/11/2006 a) (4.48 - 3.69)/(13 - 7) 0.131667 ND<1.62 OK (11/15/2006 a) ND<3.71 OK (10/6/2006 a) (1.62- 3.71)/(9- 8) -2.09 ND<3.33 OK (1/4/2007 a) ND<3.71 OK (10/6/2006 a) (3.33 - 3.71)/(10 - 8) -0.19 ND<2.92 OK (3/14/2007 a) ND<3.71 OK (10/6/2006 a) (2.92 - 3.71)/(11 - 8) -0.263333 ND<3.96 OK (4/9/2007 -) ND<3.71 OK (10/6/2006 a) (3.96 - 3.71)/(12 - 8) 0.0625 O ND<4.48 OK (6/12/2007 a) ND<3.71 OK (10/6/2006 a) (4.48 - 3.71)/(13 - 8) 0.154 ND<3.33 OK (1/4/2007 a) ND<1.62 OK (11/15/2006 a) (3.33- 1.62)/(10- 9) 1.71.

ND<2.92 OK (3/14/2007 a) ND<1.62 OK (11/15/2006 a) (2.92 - 1.62)/(11 - 9) 0.65 ND<3.96 OK (4/9/2007 -) ND<1.62 OK (11/15/2006 a) (3.96 - 1.62)/(12 - 9) 0.78 ND<4.48 OK (6/12/2007 a) ND<1.62 OK (11/15/2006 a) (4.48 - 1.62)/(13 - 9) 0.715 ND<2.92 OK (3/14/2007 a) ND<3.33 OK (1/4/2007 a) (2.92 - 3.33)/(11 - 10) -0.41 ND<3.96 OK (4/9/2007 ~) ND<3.33 OK (1/4/2007 a) (3.96 - 3.33)/(12 - 10) 0.315 ND<4.48 OK (6/12/2007 a) ND<3.33 OK (1/4/2007 a) (4.48 - 3.33)/(13 - 10) 0.383333 ND<3.96 OK (4/9/2007 -)

ND<2.92 OK (3/14/2007 a) (3.96 - 2.92)/(12 - 11) 1.04 ND<4.48 OK (6/12/2007 a) ND<2.92 OK (3/14/2007 a) (4.48 - 2.92)/(13 - 11) 0.78 ND<4.48 OK (6/12/2007 a) ND<3.96 OK (4/9/2007 -) (4.48 - 3.96)/(13 - 12) 0.52 Number of Q values = 78 Ordered 0 Values n Q 1 -2.09 2 -1.035 3 -0.773333 4 -0.7 5 -0.57 6 -0.446667 7 -0.44 8 -0.41 9 -0.381429 Page 2

O 11 10 -0.328333

-0.3325 12 -0.32 13 -0.306 14 -0.263333 15 -0.25 16 -0.204 17 -0.2 18 -0.1925 19 -0.19 20 -0.1525 21 -0.152222 22 -0.1425 23 -0.12 24 -0.12 25 -0.12 26 -0.115 27 -0.0966667 28 -0.0875 29 -0.08375 30 -0.0371429 31 -0.033 32 -0.0328571 33 -0.005 34 0.00333333 35 0.016 36 0.0172727 37 0.02 38 0.024 39 0.025 40 0.03 41 0.0411111 42 0.0475 43 0.054 44 0.0625 45 0.0633333 46 0.076 47 0.0771429 48 0.089 49 0.10125 50 0.109091 51 0.116667 52 0.13 53 0.131667 54 0.135714 55 0.14 56 0.143333 57 0.144286 58 0.147778 59 0.154 60 0.155 61 0.18 62 0.19125 63 0.236 64 0.253333 65 0.315 66 0.37 Page 3

S 68 67 69 0.395 0.383333 0.415 70 0.52 71 0.65 72 0.715 73 0.78 74 0.78 75 0.99 76 1.04 77 1.53 78 1.71 Sen's Estimator (Median Q) is 0.0275

.Time Period Observations 1/10/2006 1 2/24/2006 1 4/10/2006 1 4/19/2006 1 5/18/2006 1 5/19/2006 .1 7/11/2006 1 10/6/2006 1 11/15/2006 1 1/4/2007 1 3/14/2007 1

. 4/9/2007 6/12/2007 1

1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 4836 b = 15444 c = 312 Group Variance = 268.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 26.9609 M1 = (78 - 26.9609)/2.0 = 25.5196 M2 = (78 + 26.9609)/2.0 + 1 = 53.4804 Lower limit is -0.115 = Q(26)

Upper limit is 0.131667 = 0(53)

-0.115 < 0 < 0.131667 indicating no trend in data.

Page 4

0 Cs-1 37

-J 0

0.

C 0

C C-,

C 0

0 (0 CD 0 (0 0 r'-

0 C.-

0 0 (C0 0 0 0 0 0 0 0(N- 0 0 0 0, C)

C0 (N (N

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW107D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<3.55 U (2/17/2006 a) ND<3.76 U (1/10/2006 a) (3.55 - 3.76)/(2 - 1) -0.21 1.93 U (3/20/2006 a) ND<3.76 U (1/10/2006 a) (1.93 - 3.76)/(3 - 1) -0.915 ND<3.47 U (4/13/2006 a) ND<3.76 U (1/10/2006 a) (3.47 - 3.76)/(4 - 1) -0.0966667 ND<3.35 OK (5/12/2006 a) ND<3.76 U (1/10/2006 a) (3.35 - 3.76)/(5 - 1) -0.1025 ND<3.71 OK (7/19/2006 a) ND<3.76 U (1/10/2006 a) (3.71 - 3.76)/(6 - 1) -0.01 ND<2.81 OK (10/4/2006 a) ND<3.76 U (1/10/2006 a) (2.81 - 3.76)/(7 - 1) -0.158333 ND<3.25 OK (11/15/2006 a) ND<3.76 U (1/10/2006 a) (3.25 - 3.76)/(8 - 1) -0.0728571 ND<2.86 OK (1/5/2007 a) ND<3.76 U (1/10/2006 a) (2.86 - 3.76)/(9 - 1) -0.1125 ND<9.45 OK (3/13/2007 a) ND<3.76 U (1/10/2006 a) (9.45 - 3.76)/(10 - 1) 0.632222 ND<6.06 OK (6/11/2007 a) ND<3.76 U (1/10/2006 a) (6.06- 3.76)/(11 - 1) 0.23 1.93 U (3/20/2006 a) ND<3.55 U (2/17/2006 a) (1.93 - 3.55)/(3 - 2) -1.62 ND<3.47 U (4/13/2006 a) ND<3.55 U (2/17/2006 a) (3.47 - 3.55)/(4 - 2) -0.04 ND<3.35 OK (5/12/2006 a) ND<3.55 U (2/17/2006 a) (3.35 - 3.55)/(5 - 2) -0.0666667 ND<3.71 OK (7/19/2006 a) ND<3.55 U (2/17/2006 a) (3.71 - 3.55)/(6 -.2) 0.04 ND<2.81 OK (10/4/2006 a) ND<3.55 U (2/17/2006 a) (2.81 - 3.55)/(7 - 2) -0.148 ND<3.25,OK (11/15/2006 a) ND<3.55 U (2/17/2006 a) (3.25 - 3.55)/(8 - 2) -0.05

ND<2.86 OK (1/5/2007 a) ND<3.55 U (2/17/2006 a) (2.86 - 3.55)/(9 - 2) -0.0985714 ND<9.45 OK (3/13/2007 a) ND<3.55 U (2/17/2006 a) (9.45 - 3.55)/(10- 2) 0.7375 ND<6.06 OK (6/11/2007 a) ND<3.55 U (2/17/2006 a) (6.06 - 3.55)/(11 - 2) 0.278889 ND<3.47 U (4/13/2006 a) 1.93 U (3/20/2006 a) (3.47 - 1.93)/(4 - 3) 1.54 ND<3.35 OK (5/.12/2006 a) 1.93 U (3/20/2006 a) (3.35 - 1.93)/(5 - 3) 0.71 ND<3.71 OK (7/19/2006 a) 1.93 U (3/20/2006 a) (3.71 - 1.93)/(6 - 3) 0.593333 ND<2.81 OK (10/4/2006 a) 1.93 U (3/20/2006 a) (2.81 - 1.93)/(7 - 3) 0.22 ND<3.25 OK (11/15/2006 a) 1.93 U (3/20/2006 a) (3.25 - 1.93)/(8 - 3) 0.264 ND<2.86 OK (1/5/2007 a) 1.93 U (3/20/2006 a) (2.86 - 1.93)/(9 - 3) 0.155 ND<9.45 OK (3/13/2007 a) 1.93 U (3/20/2006 a) (9.45 - 1.93)/(10 - 3) 1.07429 ND<6.06 OK (6/11/2007 a) 1.93 U (3/20/2006 a) (6.06 - 1.93)/(11 - 3) 0.51625 ND<3.35 OK (5/12/2006 a) ND<3.47 U (4/13/2006 a) (3.35 - 3.47)/(5 - 4) -0.12 ND<3.71 OK (7/19/2006 a) ND<3.47 U (4/13/2006 a) (3.71 - 3.47)/(6 - 4) 0.12 ND<2.81 OK (10/4/2006 a) ND<3.47 U (4/13/2006 a) (2.81 - 3.47)/(7 - 4) -0.22 ND<3.25 OK (11/15/2006 a) ND<3.47 U (4/13/2006 a) (3.25 - 3.47)/(8 - 4) -0.055 ND<2.86 OK (1/5/2007 a) ND<3.47 U (4/13/2006 a) (2.86 - 3.47)/(9 - 4) -0.122 ND<9.45 OK (3/13/2007 a) ND<3.47 U (4/13/2006 a) (9.45 - 3.47)/(10 - 4) 0.996667 ND<6.06 OK (6/11/2007 a) ND<3.47 U (4/13/2006 a) (6.06 - 3.47)/(11 - 4) 0.37 ND<3.71 OK (7/19/2006 a) ND<3.35 OK (5/12/2006 a) (3.71 - 3.35)/(6 - 5) 0.36 ND<2.81 OK (10/4/2006 a) ND<3.35 OK (5/12/2006 a) (2.81 - 3.35)/(7 - 5) -0.27 ND<3.25 OK (11/15/2006 a) ND<3.35 OK (5/12/2006 a) (3:25 - 3.35)/(8 - 5) -0.0333333 ND<2.86 OK (1/5/2007 a) ND<3.35 OK (5/12/2006 a) (2.86 - 3.35)/(9 - 5) -0.1225 ND<9.45 OK (3/13/2007 a) ND<3.35 OK (5/12/2006 a) (9.45 - 3.35)/(10 - 5) 1.22 ND<6.06 OK (6/11/2007 a) ND<3.35 OK (5/12/2006 a) (6.06 - 3.35)/(11 - 5) 0.451667

. ND<2.81 OK (10/4/2006 a)

ND<3.25 OK (11/15/2006 a)

ND<3.71 OK (7/19/2006 a)

(2.81 - 3.71)/(7 - 6)

(3.25 - 3.71)/(8 - 6)

-0.9

-0.23 Page 1

ND<2.86 OK (1/5/2007 a) ND<3.71 OK (7/19/2006 a) (2.86 - 3.71)/(9- 6) -0.283333 ND<9.45 OK (3/13/2007 a) ND<3.71 OK (7/19/2006 a) (9.45- 3.71)/(10 - 6) 1.435 ND<6.06 OK (6/11/2007 a) ND<3.71 OK (7/19/2006 a) (6.06- 3.71)/(11 - 6) 0.47 ND<3.25 OK (11/15/2006 a) ND<2.81 OK (10/4/2006 a) (3.25- 2.81)/(8- 7) 0.44 ND<2.86 OK (1/5/2007 a) ND<2.81 OK (10/4/2006 a) (2.86 - 2.81)/(9- 7) 0.025 ND<9.45 OK (3/13/2007 a) ND<2.81 OK (10/4/2006 a) (9.45 - 2.81)/(10 - 7) 2.21333 ND<6.06 OK (6/11/2007 a) ND<2.81 OK (10/4/2006 a) (6.06 - 2.811)/(11 - 7) 0.8125 ND<2.86 OK (1/5/2007 a) ND<3.25 OK (11/15/2006 a) (2.86 - 3.25)/(9 - 8) -0.39 ND<9.45 OK (3/13/2007 a) ND<3.25 OK (11/15/2006 a) (9.45 - 3.25)/(10- 8) 3.1 ND<6.06 OK (6/11/2007 a) N D<3.25 OK (11/15/2006 a). (6.06 - 3.25)/(11 - 8) 0.936667 ND<2.86 OK (1/5/2007 a)

ND<9.45 OK (3/13/2007 a) (9.45 - 2.86)/(10- 9) 6.59 ND<6.06 OK (6/11/2007 a) ND<2.86 OK (1/5/2007 a) (6.06 - 2.86)/(11 - 9) 1.6 ND<6.06 OK (6/11/2007 a) ND<9.45 OK (3/13/2007 a) (6.06- 9.45)/(11 - 10) -3.39 Number of Q values = 55 Ordered Q Values n Q 1 -3.39 2 -1.62 3 -0.915 4 -0.9 5 -0.39 6 -0.283333 7 -0.27 8 -0.23 9 -0.22 10 -0.21 11 -0.158333 12 -0.148 13 -0.1225 14 -0.122 15 -0.12 16 -0.1125 17 -0.1025 18 -0.0985714 19 -0.0966667 20 -0.0728571 21 -0.0666667 22 -0.055 23 -0.05 24 -0.04 25 -0.0333333 26 -0.01 27 0.025 28 0.04 29 0.12 30 0.155 31 0.22 32 0.23 33 0.264 34 0.278889 Page 2

S 35 36 0.36 0.37 37 0.44 38 0.451667 39 0.47 40 0.51625 41 0.593333 42 0.632222 43 0.71 44 0.7375 45 0.8125 46 0.936667 47 0.996667 48 1.07429 49 1.22 50 1.435 51 1.54 52 1.6 53 2.21333 54 3.1 55 6.59 Sen's Estimator (Median Q) is 0.04 Time Period Observations 1/10/2006 1 2/17/2006 1

. 3/20/2006 4/13/2006 5/12/2006 1

1 1

7/19/2006 1 10/4/2006 1 11/15/2006 1 1/5/2007 1 3/13/2007 1 6/11/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55- 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.1025 = Q(17)

Upper limit is 0.47 = Q(39)

-0.1025 < 0 < 0.47 indicating no trend in data.

Page 3

0 Cs-1 37

-J U

0~

C 0

1)

(0(0 (D0-r 0 (0

0 oo0 0) C0 0 0 0 C) 0 C (NI (0C(N (NI

(~~) (0 00 ~

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW107S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit

.90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.61 U (2/17/2006 a) ND<3.3 U (1/9/2006 a) (3.61 - 3.3)/(2- 1) 0.31 ND<4.04 U (3/20/2006 a) ND<3.3 U (1/9/2006 a) (4.04 - 3.3)/(3 - 1) 0.37 ND<3.43 U (4/4/2006 a) ND<3.3 U (1/9/2006 a) (3.43 - 3.3)/(4 - 1) 0.0433333 ND<3.13 OK (5/12/2006 a) ND<3.3 U (1/9/2006 a) (3.13 - 3.3)/(5 - 1) -0.0425 ND<3.5 OK (7/18/2006 a) ND<3.3 U (1/9/2006 a) (3*.5 - 3.3)/(6 - 1) 0.04 ND<3.51 OK (7/19/2006 a) ND<3.3 U (1/9/2006 a) (3.51 - 3.3)/(7 - 1) 0.035 ND<2.57 OK (10/4/2006 a) ND<3.3 U (1/9/2006 a) (2.57 - 3.3)/(8 - 1) -0.104286 ND<4.16 OK (11/15/2006 a) ND<3.3 U (1/9/2006 a) (4.16- 3.3)/(9 - 1) 0.1075 ND<3.85 OK (1/5/2007 a) ND<3.3 U (1/9/2006 a) (3.85- 3.3)/(10 - 1) 0.0611111 ND<4.26 OK (3/13/2007 a) ND<3.3 U (1/9/2006 a) (4.26 - 3.3)/(11 - 1) 0.096 ND<3.71 OK (6/11/2007 a) ND<3.3 U (1/9/2006 a) (3.71 - 3.3)/(12 - 1) 0.0372727 ND<4.04 U (3/20/2006 a) ND<3.61 U (2/17/2006 a) (4.04 - 3.61)/(3- 2) 0.43 ND<3.43 U (4/4/2006 a) ND<3.61 U (2/17/2006 a) (3.43 - 3.61)/(4 - 2) -0.09 ND<3.13 OK (5/12/2006 a) ND<3.61 U (2/17/2006 a) (3.13- 3.61)/(5- 2) -0.16 ND<3.5 OK (7/18/2006 a) ND<3.61 U (2/17/2006 a) (3.5- 3.61)/(6- 2) -0.0275 ND<3.51 OK (7/19/2006 a)

ND<2.57 OK (10/4/2006 a)

ND<4.16 OK (11/15/2006 a)

ND<3.61 ND<3.61 ND<3.61 U (2/17/2006 U (2/17/2006 U (2/17/2006 a) a)

a)

(3.51 - 3.61)/(7 - 2)

(2.57- 3.61)/(8- 2)

(4.16 - 3.61)/(9 - 2)

-0.02

-0.173333 0.0785714-ND<3.85 OK (1/5/2007 a) ND<3.61 U (2/17/2006 a) (3.85- 3.61)/(10- 2) 0.03 ND<4.26 OK (3/13/2007 a) ND<3.61 U (2/17/2006 a) (4.26 - 3.61)/(11 - 2) 0.0722222 ND<3.71 OK (6/11/2007 a) ND<3.61 U (2/17/2006 a) (3.71 - 3.61)/(12 - 2) 0.01 ND<3.43 U (4/4/2006 a) ND<4.04 U (3/20/2006 a) (3.43 - 4.04)/(4 - 3) -0.61 ND<3.13 OK (5/12/2006 a) ND<4.04 U (3/20/2006 a) (3.13 - 4.04)/(5 - 3) -0.455 ND<3.5 OK (7/18/2006 a) ND<4.04 U (3/20/2006 a) (3.5 - 4.04)/(6 - 3) -0.18 ND<3.51 OK (7/19/2006 a) ND<4.04 U (3/20/2006 a) (3.51 - 4.04)/(7 - 3) -0.1325 ND<2.57 OK (10/4/2006 a) ND<4.04 U (3/20/2006 a) (2.57 - 4.04)/(8 - 3) -0.294 ND<4.16 OK (11/15/2006 a) ND<4.04 U (3/20/2006 a) (4.16- 4.04)/(9 - 3) 0.02 ND<3.85 OK (1/5/2007 a) ND<4.04 U (3/20/2006 a) (3.85 - 4.04)/(10 - 3) -0.0271429 ND<4.26 OK (3/13/2007 a) ND<4.04 U (3/20/2006 a) (4.26 - 4.04)/(11 - 3) 0.0275 ND<3.71 OK (6/11/2007 a) ND<4.04 U (3/20/2006 a) (3.71 - 4.04)/(12 - 3) -0.0366667 ND<3.13 OK (5/12/2006 a) ND<3.43 U (4/4/2006 a) (3.13 - 3.43)/(5 - 4) -0.3 ND<3.5 OK (7/18/2006 a) ND<3.43 U (4/4/2006 a) (3.5 - 3.43)/(6 - 4) 0.035 ND<3.51 OK (7/19/2006 a) ND<3.43 U (4/4/2006 a) (3.51 - 3.43)/(7 - 4) 0.0266667 ND<2.57 OK (10/4/2006 a) ND<3.43 U (4/4/2006 a) (2.57 - 3.43)/(8 - 4) -0.215 ND<4.16 OK (11/15/2006 a) ND<3.43 U (4/4/2006 a) (4.16 - 3.43)/(9 - 4) 0.146 ND<3.85 OK (1/5/2007 a) ND<3.43 U (4/4/2006 a) (3.85 - 3.43)/(10 - 4) 0.07 ND<4.26 OK (3/13/2007 a) ND<3.43 U (4/4/2006 a) (4.26 - 3.43)/(11 - 4) 0.118571 ND<3.71 OK (6/11/2007 a) ND<3.43 U (4/4/2006 a) (3.71 - 3.43)/(12 - 4) 0.035 ND<3.5 OK (7/18/2006 a) ND<3.13 OK (5/12/2006 a) (3.5- 3.13)/(6 - 5) 0.37

. ND<3.51 OK (7/19/2006 a)

ND<2.57 OK (10/4/2006 a)

ND<4.16 OK (11/15/2006 a)

ND<3.13 ND<3.13 ND<3.13 OK OK OK (5/12/2006 (5/12/2006 (5/12/2006 a) a)

a)

(3.51 - 3.13)/(7 7 5)

(2.57 - 3.13)/(8 - 5)

(4.16- 3.13)/(9 - 5) 0.19

-0.186667 0.2575 ND<3.85 OK (1/5/2007 a) ND<3.13 OK (5/12/2006 a) (3.85 - 3.13)/(10 - 5) 0.144 Page 1

. ND<3.71 ND<4.26 OK OK (6/11/2007 (3/13/2007 a) a)

ND<3.13 OK (5/12/2006 a)

(4.26- 3.13)/(11 - 5)

(3.71 - 3.13)/(12- 5) 0.188333 0.0828571 ND<3.51 OK (7/19/2006 a) ND<3.5 OK (7/18/2006 a) (3.51 - 3.5)/(7 - 6) 0.01 ND<2.57 OK (10/4/2006 a) ND<3.5 OK (7/18/2006 a) (2.57 - 3.5)/(8 - 6) -0.465 ND<4.16 OK (11/15/2006 a) ND<3.5 OK (7/18/2006 a) (4.16 - 3.5)/(9 - 6) 0.22 ND<3.85 OK (1/5/2007 a) ND<3.5 OK (7/18/2006 a) (3.85 - 3.5)/(10 - 6) 0.0875 ND<4.26 OK (3/13/2007 a) ND<3.5 OK (7/18/2006 a) (4.26 - 3.5)/(11 - 6) 0.152' ND<3.71 OK (6/11/2007 a) ND<3.5 OK (7/18/2006 a) (3.71 - 3.5)/(12 - 6) 0.035 ND<2.57 OK (10/4/2006 a) ND<3.51 OK (7/19/2006 a) (2.57- 3.51)/(8- 7) -0.94 ND<4.16 OK (11/15/2006 a) ND<3.51 OK (7/19/2006 a) (4.16- 3.51)/(9 - 7) 0.325 ND<3.85 OK (1/5/2007 a) ND<3.51 OK (7/19/2006 a) (3.85- 3.51)/(10 - 7) 0.113333 ND<4.26 OK (3/13/2007 a) ND<3.51 OK (7/19/2006 a) (4.26 - 3.51)/(11 - 7) 0.1875 ND<3.71 OK (6/11/2007 a) ND<3.51 OK (7/19/2006 a) (3.71 - 3.51)/(12 - 7) 0.04 ND<4.16 OK (11/15/2006 a) ND<2.57 OK (10/4/2006 a) (4.16 - 2.57)/(9 - 8) 1.59 ND<3.85 OK (1/5/2007 a) ND<2.57 OK (10/4/2006 a) (3.85- 2.57)/(10- 8) 0.64 ND<4.26 OK (3/13/2007 a) ND<2.57 OK (10/4/2006 a) (4.26 - 2.57)/(11 - 8) 0.563333 ND<3.71 OK (6/11/2007 a) ND<2.57 OK (10/4/2006 a) (3.71 - 2.57)/(12 - 8) 0.285 ND<3.85 OK (1/5/2007 a) ND<4.16 OK (11/15/2006 a) (3.85- 4.16)/(10- 9) -0.31 ND<4.26 OK (3/13/2007 a) ND<4.16 OK (11/15/2006 a) (4.26- 4.16)/(11 - 9) 0.05 ND<3.71 OK (6/11/2007 a) ND<4.16 OK (11/15/2006 a) (3.71 - 4.16)/(12- 9) -0.15 0.41 ND<4.26 OK (3/13/2007 a) ND<3.85 OK (1/5/2007 a) (4.26 - 3.85)/(11 - 10)

ND<3.71 OK (6/11/2007 a) ND<3.85 OK (1/5/2007 a) (3.71 - 3.85)/(12 - 10) -0.07 BND<3.71 OK (6/11/2007 a) ND<4.26 OK (3/13/2007 a) (3.71 - 4.26)/(12 - 11) -0.55 Number of Q values = 66 Ordered o Values n Q 1 -0.94 2 -0.61 3 -0.55 4 -0.465 5 -0.455 6 -0.31 7 -0.3 8 -0.294 9 -0.215 10 -0.186667 11 -0.18

12. -0.173333 13 -0.16 14 -0.15 15 -0.1325 16 -0.104286 17 -0.09 18 -0.07 19 -0.0425

.120 -0.0366667

-0.0275 21 22 -0.0271429 Page 2

23 -0.02 24 0.01 25 0.01 26 0.02 27 0.0266667 28 0.0275 29 0.03 30 0.035 31 0.035 32 0.035 33 0.035 34 0.0372727 35 0.04 36 0.04 37 0.0433333 38 0.05 39 0.0611111 40 0.07 41 0.0722222 42 0.0785714 43 0.0828571 44 0.0875 45 0.096 46 0.1075 47 0.113333 48 0.118571 49 0.144 50 0.146 51 0.152 52 0.1875 53 0.188333 54 0.19 55 0.22 56 0.2575 57 0.285 58 0.31 59 0.325 60 0.37 61 0.37 62 0.41 63 0.43 64 0.563333 65 0.64 66 1.59 Sen's Estimator (Median Q) is 0.0361364 Time Period Observations 1/9/2006 1 2/17/2006 1 3/20/2006 1 4/4/2006 1 5/12/2006 1 7/18/2006 1 7/19/2006 1 10/4/2006 1 11/15/2006 1 1/5/2007 1 Page 3

O 3/13/2007 6/11/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 3828 b = 11880 c = 264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is -0.0275 = Q(21)

Upper limit is 0.1075 = Q(46)

-0.0275 < 0 < 0.1075 indicating no trend in data.

Page 4

Cs-1 37 Time-Series Graph of MWI08S 5

0,/

4 ot CD C, a, C)

O a O

OC O OOO CDO Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW108S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.54 U (2/10/2006 a) ND<5.51 U (1/10/2006 a) (3.54 - 5.51)/(2 - 1) -1.97 ND<3.35 U (3/13/2006 a) ND<5.51 U (1/10/2006 a) (3.35- 5.51)/(3 - 1) -1.08 ND<3.4 U (4/13/2006 a) ND<5.51 U (1/10/2006 a) (3.4 - 5.51)/(4 - 1) -0.703333 ND<3.51 OK (5/4/2006 a) ND<5.51 U (1/10/2006 a) (3.51 - 5.51)/(5 - 1) -0.5 ND<2.78 OK (7/10/2006 a) ND<5.51 U (1/10/2006 a) (2.78 - 5.51)/(6 - 1) -0.546 ND<3.79 OK (10/4/2006 a) ND<5.51 U (1/10/2006 a) (3.79 - 5.51)/(7 - 1) -0.286667 ND<3.69 OK (1/5/2007 a) ND<5.51 U (1/10/2006 a) (3.69 - 5.51)/(8 - 1) -0.26 ND<3.11 OK (3/20/2007 a) ND<5.51 U (1/10/2006 a) (3.11 - 5.51)/(9 - 1) -0.3 ND<4.33 OK (6/12/2007 a) ND<5.51 U (1/10/2006 a) (4.33 - 5.51)/(10 - 1) -0.131111 ND<3.35 U (3/13/2006 a) ND<3.54 U (2/10/2006 a) (3.35 - 3.54)/(3 - 2) -0.19 ND<3.4 U (4/13/2006 a) ND<3.54 U (2/10/2006 a) (3.4 - 3.54)/(4 - 2) -0.07 ND<3.51 OK (5/4/2006 a) ND<3.54 U (2/10/2006 a) (3.51 - 3.54)/(5 - 2) -0.01 ND<2.78 OK (7/10/2006 a) ND<3.54 U (2/10/2006 a) (2.78 - 3.54)/(6 - 2) -0.19 ND<3.79 OK (10/4/2006 a) ND<3.54 U (2/10/2006 a) (3.79 - 3.54)/(7 - 2) 0.05 ND<3.69 OK (1/5/2007 a). ND<3.54 U (2/10/2006 a) (3.69 - 3.54)/(8 - 2) 0.025 ND<3.11 OK (3/20/2007 a) ND<3.54 U (2/10/2006 a) (3.11 - 3.54)/(9- 2) -0.0614286 ND<4.33 OK (6/12/2007 a) ND<3.54 U (2/10/2006 a) (4.33 - 3.54)/(10 - 2) 0.09875 ND<3.4 U (4/13/2006 a) ND<3.35 U (3/13/2006 a) (3.4 - 3.35)/(4 - 3) 0.05 ND<3.51 OK (5/4/2006 a) ND<3.35 U (3/13/2006 a) (3.51 - 3.35)/(5 - 3) 0.08 ND<2.78 OK (7/10/2006 a) ND<3.35 U (3/13/2006 a) (2.78 - 3.35)/(6 - 3) -0.19 ND<3.79 OK (10/4/2006 a) ND<3.35 U (3/13/2006 a) (3.79 - 3.35)/(7 - 3) 0.11 ND<3.69 OK (1/5/2007 a) ND<3.35 U (3/13/2006 a) (3.69 - 3.35)/(8 - 3) 0.068 ND<3.11 OK (3/20/2007 a) ND<3.35 U (3/13/2006 a) (3.11 - 3.35)/(9 - 3) -0.04 ND<4.33 OK (6/12/2007 a) ND<3135 U (3/13/2006 a) (4.33 - 3.35)/(10 - 3) 0.14 ND<3.51 OK (5/4/2006 a) ND<3.4 U (4/13/2006 a) (3.51 - 3.4)/(5 - 4) 0.11 ND<2.78 OK (7/10/2006 a) ND<3.4 U (4/13/2006 a) (2.78 - 3.4)/(6 - 4) -0.31 ND<3.79 OK (10/4/2006 a) ND<3.4 U (4/13/2006 a) (3.79 - 3.4)/(7 - 4) 0.13 ND<3.69 OK (1/5/2007 a) ND<3.4 U (4/13/2006 a) (3.69 - 3.4)/(8 - 4) .0.0725 ND<3.11 OK (3/20/2007 a) ND<3.4 U (4/13/2006 a) (3.11 - 3.4)/(9 - 4) -0.058 ND<4.33 OK (6/12/2007 a) ND<3.4 U (4/13/2006 a) (4.33- 3.4)/(10- 4) 0.155 ND<2.78 OK (7/10/2006 a) ND<3.51 OK (5/4/2006 a) (2.78- 3.51)/(6 - 5) -0.73 ND<3.79 OK (10/4/2006 a) ND<3.51 OK (5/4/2006 a) (3.79 - 3.51)/(7 - 5) 0.14 ND<3.69 OK (1/5/2007 a) ND<3.51 OK (5/4/2006 a) (3.69 - 3.51)/(8 - 5) 0.06 ND<3.11 OK (3/20/2007 a) ND<3.51 OK (5/4/2006 a) (3.11 - 3.51)/(9 - 5) -0.1 ND<4.33 OK (6/12/2007 a) ND<3.51 OK (5/4/2006 a) (4.33 - 3.51)/(10- 5) 0.164 ND<3.79 OK (10/4/2006 a) ND<2.78 OK (7/10/2006 a) (3.79 - 2.78)/(7 - 6) 1.01 ND<3.69 OK (1/5/2007 a) ND<2.78 OK (7/10/2006 a) (3.69 - 2.78)/(8 - 6) 0.455 ND<3.11 OK (3/20/2007 a) ND<2.78 OK (7/10/2006 a) (3.11 - 2.78)/(9 - 6) 0.11 ND<4.33 OK (6/12/2007 a) ND<2.78 OK (7/10/2006 a) (4.33 - 2.78)/(10 - 6) 0.3875 ND<3.69 OK (1/5/2007 a) ND<3.79 OK (10/4/2006 a) (3.69 - 3.79)/(8 - 7) -0.1 ND<3.11 OK (3/20/2007 a) ND<3.79 OK (10/4/2006 a) (3.11 - 3.79)/(9 - 7) -0.34 Page 1

ND<4.33 OK (6/12/2007 a) ND<3.79 OK (10/4/2006 a) (4.33 - 3.79)/(10 - 7) 0.18 ND<3.69 OK (1/5/2007 a)

ND<3.1 1 OK (3/20/2007 a) ND<3.69 OK (1/5/2007 a) (3.11 - 3.69)/(9 - 8) -0.58 ND<4.33 OK (6/12/2007 a) (4.33 - 3.69)/(10- 8) 0.32 ND<4.33 OK (6/12/2007 a) ND<3.11 OK (3/20/2007 a) (4.33- 3.11)/(10- 9) 1.22 Number of 0 values = 45 Ordered Q Values n a 1 -1.97 2 -1.08 3 -0.73 4 -0.703333 5 -0.58 6 -0.546 7 -0.5 8 -0.34 9 -0.31 10 -0.3 11 -0.286667 12 -0.26 13 -0.19 14 -0.19 15 -0.19 16 -0.131111 17 -0.1 18 -0.1 19 -0.07 20 -0.0614286 21 -0.058 22 -0.04 23 -0.01 24 0.025 25 0.05 26 0.05 27 0.06 28 0.068 29 0.0725 30 0.08 31 0.09875 32 0.11 33 0.11 34 0.11 35 0.13 36 0.14 37 0.14 38 0.155 39 0.164 40 0.18 41 0.32

. 42 43 44 0.3875 0.455 1.01 45 1.22 Page 2

Sen's Estimator (Median Q) is -0.01 Time Period Observations 1/10/2006 1 2/10/2006 1 3/13/2006 1 4/13/2006 1 5/4/2006 1 7/10/2006 1 10/4/2006 1 1/5/2007 1 3/20/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B =0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed); Z at (1 -0.9)/2 = 1.64485

.C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.19 = Q(13) upper limit is 0.11 = Q(33)

-0.19 < 0 < 0.11 indicating no trend in data.

Page 3

Cs-1 37 Time-Series Graph of MW109D 5

41 Z-0~

2 0

0 3E,000 to0 0 C, C) 0D I Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW109D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<2.64 U (2/9/2006 a) ND<2.68 U (1/10/2006 a) (2.64- 2.68)/(2 - 1) -0.04 ND<4.18U (3/17/2006 a) ND<2.68 U (1/10/2006 a) (4.18- 2.68)/(3 - 1) 0.75 ND<3.13 U (4/18/2006 a) ND<2.68 U (1/10/2006 a) (3.13 - 2.68)/(4 - 1) 0.15 ND<5.15 OK (5/12/2006 a) ND<2.68 U (1/10/2006 a) (5.15- 2.68)/(5 - 1) 0.6175 ND<3.19 OK (7/16/2006 a) ND<2.68 U (1/10/2006 a) (3.19 - 2.68)/(6 - 1) 0.102 ND<3.89 OK (10/3/2006 a) ND<2.68 U (1/10/2006 a) (3.89 - 2.68)/(7 - 1) 0.201667 ND<3.52 OK (1/4/2007 a) ND<2.68 U (1/10/2006 a) (3.52 - 2.68)/(8 - 1) 0.12 ND<3.03 OK (3/13/2007 a) ND<2.68 U (1/10/2006 a) (3.03 - 2.68)/(9 - 1) 0.04375 ND<3.69 OK (6/9/2007 a) ND<2.68 U (1/10/2006 a) (3.69 - 2.68)/(10 - 1) 0.112222 ND<4.18 U (3/17/2006 a) ND<2.64 U (2/9/2006 a) (4.18- 2.64)/(3- 2) 1.54 ND<3.13 U (4/18/2006 a) ND<2.64 U (2/9/2006 a) (3.13- 2.64)/(4- 2) 0.245 ND<5.15 OK (5/12/2006 a) ND<2.64 U (2/9/2006 a) (5.15- 2.64)/(5 - 2) 0.836667 ND<3.19 OK (7/16/2006 a) ND<2.64 U (2/9/2006 a) (3.19- 2.64)/(6 - 2) 0.1375 ND<3.89 OK (10/3/2006 a) ND<2.64 U (2/9/2006 a) (3.89 - 2.64)/(7 - 2) 0.25 ND<3.52 OK (1/4/2007 a) ND<2.64 U (2/9/2006 a) (3.52 - 2.64)/(8 - 2) 0.146667 ND<3.03 OK (3/13/2007 a) ND<2.64 U (2/9/2006 a) (3.03 - 2.64)/(9 - 2) 0.0557143 ND<3.69 OK (6/9/2007 a) ND<2.64 U (2/9/2006 a) (3.69- 2.64)/(10- 2) 0.13125 ND<3.13 U (4/18/2006 a) ND<4.18 U (3/17/2006 a) (3.13- 4.18)/(4- 3) -1.05 ND<5.15 OK (5/12/2006 a) ND<4.18 U (3/17/2006 a) (5.15- 4.18)/(5 - 3) 0.485 ND<3.19 OK (7/16/2006 a) ND<4.18 U (3/17/2006 a) (3.19- 4.18)/(6- 3) -0.33 ND<3.89 OK (10/3/2006 a) ND<4.18 U (3/17/2006 a) (3.89 - 4.18)/(7 - 3) -0.0725 ND<3.52 OK (1/4/2007 a) ND<4.18 U (3/17/2006 a) (3.52 - 4.18)/(8 - 3) -0.132 ND<3.03 OK (3/13/2007 a) ND<4.18 U (3/17/2006 a) (3.03 - 4.18)/(9 - 3) -0.191667 ND<3.69 OK (6/9/2007 a) ND<4.18 U (3/17/2006 a) (3.69- 4.18)/(10- 3) -0.07 ND<5.15 OK (5/12/2006 a) ND<3.13 U (4/18/2006 a) (5.15- 3.13)/(5- 4) 2.02 ND<3.19 OK (7/16/2006 a) ND<3.13 U (4/18/2006 a) (3.19- 3.13)/(6 - 4) 0.03 ND<3.89 OK (10/3/2006 a) ND<3.13 U (4/18/2006 a) (3.89 - 3.13)/(7 - 4) 0.253333 ND<3.52 OK (1/4/2007 a) ND<3.13 U (4/18/2006 a) (3.52 - 3.13)/(8 - 4) 0.0975 ND<3.03 OK (3/13/2007 a) ND<3.13 U (4/18/2006 a) (3.03- 3.13)/(9 - 4) -0.02 ND<3.69 OK (6/9/2007 a) ND<3.13 U (4/18/2006 a) (3.69- 3.13)/(10- 4) 0.0933333 ND<3.19 OK (7/16/2006 a) ND<5.15 OK (5/12/2006 a) (3.19- 5.15)/(6 - 5) -1.96 ND<3.89 OK (10/3/2006 a) ND<5.15 OK (5/12/2006 a) (3.89- 5.15)/(7- 5) -0.63 ND<3.52 OK (1/4/2007 a) ND<5.15 OK (5/12/2006 a) (3.52- 5.15)/(8 - 5) -0.543333 ND<3.03 OK (3/13/2007 a) ND<5.15 OK (5/12/2006 a) (3.03 - 5.15)/(9 - 5) -0.53 ND<3.69 OK (6/9/2007 a) ND<5.15 OK (5/12/2006 a) (3.69 - 5.15)/(10- 5) -0.292 ND<3.89 OK (10/3/2006 a) ND<3.19 OK (7/16/2006 a) (3.89 - 3.19)/(7 - 6) 0.7 ND<3.52 OK (1/4/2007 a) ND<3.19 OK (7/16/2006 a) (3.52 - 3.19)/(8 - 6) 0.165 ND<3.03 OK (3/13/2007 a) ND<3.19 OK (7/16/2006 a) (3.03 - 3.19)/(9- 6) -0.0533333 ND<3.69 OK (6/9/2007 a) ND<3.19 OK (7/16/2006 a), (3.69 - 3.19)/(10- 6) 0.125 ND<3.52 OK (1/4/2007 a) ND<3.89 OK (10/3/2006 a) (3.52 - 3.89)/(8 - 7) -0.37 ND<3.03 OK (3/13/2007 a) ND<3.89 OK (10/3/2006 a) (3.03 - 3.89)/(9 - 7) -0.43 Page 1

ND<3.69 OK (6/9/2007 a) ND<3.89 OK (110/3/2006 a) (3.69 - 3.89)/(10 - 7) -0.0666667 ND<3.03 OK (3/13/2007 a) ND<3.52 OK (1/4/2007 a) (3.03 - 3.52)/(9 - 8) -0.49 ND<3.69 OK (6/9/2007 a) ND<3.52 OK (1/4/2007 a) (3.69- 3.52)/(10- 8) 0.085 ND<3.69 OK (6/9/2007 a) ND<3.03 OK (3/13/2007 a) (3.69- 3.03)/(10- 9) 0.66 Number of 0 values = 45 Ordered o Values n Q 1 -1.96 2 -1.05 3 -0.63 4 -0.543333 5 -0.53 6 -0.49 7 -0.43 8 -0.37 9 -0.33 10 -0.292 11 -0.191667 12 -0.132 13 -0.0725 14 -0.07

. 15 16 17

-0.0666667

-0.0533333

-0.04 18 -0.02 19 0.03 20 0.04375 21 0.0557143 22 0.085 23 0.0933333 24 0.0975 25 0.102 26 0.112222 27 0.12 28 0.125 29 0.13125 30 0.1375 31 0.146667 32 0.15 33 0.165 34 0.201667 35 0.245 36 0.25 37 0.253333 38 0.485 39 0.6175 40 0.66 41 0.7

. 42.

43 44 0.75 0.836667 1.54 45 2.02 Page 2

. Sen's Estimator (Median Q) is 0.0933333 Time Period Observations 1/10/2006 1 2/9/2006 1 3/17/2006 1 4/18/2006 1 5/12/2006 1 7/16/2006 1 10/3/2006 1 1/4/2007 1 3/13/2007 1 6/9/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

. C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0725 = Q(13)

Upper limit is 0.165 = Q(33)

-0.0725 < 0 < 0.165 indicating no trend in data.

Page 3

Cs-1 37 Time-Series Graph of MW109S 5

4 0.

CDC oc

-JJ SapeDt Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW109S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.52 U (2/17/2006 a) ND<3.3 U (1/9/2006 a) (3.52 - 3.3)/(2 - 1) 0.22 ND<3.34 U (3/17/2006 a) ND<3.3 U (1/9/2006 a) (3.34 - 3.3)/(3 - 1) 0.02 ND<2.91 U (4/18/2006 a) ND<3.3 U (1/9/2006 a) (2.91 - 3.3)/(4 - 1) -0.13 ND<5.38 OK (5/12/2006 a) ND<3.3 U (1/9/2006 a) (5.38 - 3.3)/(5 - 1) 0.52 ND<3.96 OK (7/10/2006 -) ND<3.3 U (1/9/2006 a) (3.96 - 3.3)/(6 - 1) 0.132 ND<2.94 OK (10/4/2006 a) ND<3.3 U (1/9/2006 a) (2.94 - 3.3)/(7 - 1) -0.06 ND<3.56 OK (1/5/2007 a) ND<3.3 U (1/9/2006 a) (3.56 - 3.3)/(8 - 1) 0.0371429 ND<3.6 OK (3/20/2007 a) ND<3.3 U (1/9/2006 a) (3.6 - 3.3)/(9 - 1) 0.0375 ND<3.68 OK (6/9/2007 a) ND<3.3 U (1/9/2006 a) (3.68 - 3.3)/(10 - 1) 0.0422222 ND<3.34 U (3/17/2006 a) ND<3.52 U (2/17/2006 a) (3.34 - 3.52)/(3 - 2) -0.18 ND<2.91 U (4/18/2006 a) ND<3.52 U (2/17/2006 a) (2.91 - 3.52)/(4 - 2) -0.305 ND<5.38 OK (5/12/2006 a) ND<3.52 U (2/17/2006 a) (5.38 - 3.52)/(5 - 2) 0.62 ND<3.96 OK (7/10/2006 -) ND<3.52 U (2/17/2006 a) (3.96 - 3.52)/(6 - 2) 0.11 ND<2.94 OK (10/4/2006 a) ND<3.52 U (2/17/2006 a) (2.94 - 3.52)/(7 - 2) -0.116 ND<3.56 OK (1/5/2007 a) ND<3.52 U (2/17/2006 a) (3.56 - 3.52)/(8 - 2) 0.00666667 ND<3.6 OK (3/20/2007 a) ND<3.52 U (2/17/2006 a) (3.6 - 3.52)/(9 - 2) 0.0114286 ND<3.68 OK (6/9/2007 a) ND<3.52U (2/17/2006 a) (3.68 - 3.52)/(10- 2) 0.02 ND<2.91 U (4/18/2006 a) ND<3.34 U (3/17/2006 a) (2.91 - 3.34)/(4 - 3) -0.43 ND<5.38 OK (5/12/2006 a) ND<3.34 U (3/17/2006 a) (5.38 - 3.34)/(5 - 3) 1.02 ND<3.96 OK (7/10/2006 -) ND<3.34 U (3/17/2006 a) (3.96 - 3.34)/(6 - 3) 0.206667 ND<2.94 OK (10/4/2006 a) ND<3.34 U (3/17/2006 a) (2.94 - 3.34)/(7 - 3) -0.1 ND<3.56 OK (1/5/2007 a) ND<3.34 U (3/17/2006 a) (3.56 - 3.34)/(8 - 3) 0.044 ND<3.6 OK (3/20/2007 a) ND<3.34 U (3/17/2006 a) (3.6 - 3.34)/(9 - 3) 0.0433333 ND<3.68 OK (6/9/2007 a) ND<3.34 U (3/17/2006 a) (3.68- 3.34)/(10- 3) 0.0485714 ND<5.38 OK (5/12/2006 a) ND<2.91 U (4/18/2006 a) (5.38 - 2.91)/(5 - 4) 2.47 ND<3.96 OK (7/10/2006 -) ND<2.91 U (4/18/2006 a) (3.96 - 2.91)/(6 - 4) 0.525 ND<2.94 OK (10/4/2006 a) ND<2.91 U (4/18/2006 a) (2.94 - 2.91)/(7- 4) 0.01 ND<3.56 OK (1/5/2007 a) ND<2.91 U (4/18/2006 a) (3.56 - 2.91)/(8 - 4) 0.1625 ND<3.6 OK (3/20/2007 a) ND<2.91 U (4/18/2006 a) (3.6- 2.91)/(9- 4) 0.138 ND<3.68 OK (6/9/2007 a) ND<2.91 U (4/18/2006 a) (3.68- 2.91 )/(10- 4) 0.128333 ND<3.96 OK (7/10/2006 -) ND<5.38 OK (5/12/2006 a) (3.96 - 5.38)/(6 - 5) -1.42 ND<2.94 OK (10/4/2006 a) ND<5.38 OK (5/12/2006 a) (2.94 - 5.38)/(7 - 5)' -1.22 ND<3.56 OK (1/5/2007 a) ND<5.38 OK (5/12/2006 a) (3.56 - 5.38)/(8 - 5) -0.606667 ND<3.6 OK (3/20/2007 a) ND<5.38 OK (5/12/2006 a) (3.6 - 5.38)/(9 - 5) -0.445 ND<3.68 OK (6/9/2007 a) ND<5.38 OK (5/12/2006 a) (3.68 - 5.38)/(10 - 5) -0.34 ND<2.94 OK (10/4/2006 a) ND<3.96 OK (7/10/2006 ~) (2.94 - 3.96)/(7 - 6) -1.02 ND<3.56 OK (1/5/2007 a) ND<3.96 OK (7/10/2006 ~) (3.56 - 3.96)/(8 - 6) -0.2 ND<3.6 OK (3/20/2007 a) ND<3.96 OK (7/10/2006 ~) (3.6 - 3.96)/(9 - 6) -0.12 ND<3.68 OK (6/9/2007 a) ND<3.96 OK (7/10/2006 ~) (3.68 - 3.96)/(10- 6) -0.07 ND<3.56 OK (1/5/2007 a) ND<2.94 OK (10/4/2006 a) (3.56 - 2.94)/(8 - 7) 0.62 ND<3.6 OK (3/20/2007 a) ND<2.94 OK (10/4/2006 a) (3.6 - 2.94)/(9 - 7) 0.33 Page 1

ND<3.68 OK (6/9/2007 a) ND<2.94 OK (10/4/2006 a) (3.68 - 2.94)/(10 - 7) 0.246667 ND<3.6 OK (3/20/2007 a) ND<3.56 OK (1/5/2007 a) (3.6 - 3.56)/(9 - 8) 0.04 ND<3.68 OK (6/9/2007 a) ND<3.56 OK (1/5/2007 a) (3.68 - 3.56)/(10 - 8) Q.06 ND<3.68 OK (6/9/2007 a) ND<3.6 OK (3/20/2007 a) (3.68 - 3.6)/(10 - 9) 0.08 Number of Q values = 45 Ordered 0 Values n a 1 -1.42 2 -1.22 3 -1.02 4 -0.606667 5 -0.445 6 -0.43 7 -0.34 8 -0.305 9 -0.2 10 -0.18 11 -0.13 12 -0.12 13 -0.116 14 -0.1 15 -0.07

. 16 17

-0.06 0.00666667 18 0.01 19 0.0114286 20 0.02 21 0.02 22 0.0371429 23 0.0375 24 0.04 25 0.0422222 26 0.0433333 27 0.044 28 0.0485714 29 0.06 30 0.08 31 0.11 32 0.128333 33 0.132 34 0.138 35 0.1625 36 0.206667 37 0.22 38 0.246667 39 0.33 40 0.52 41 0.525 42 0.62 43 0.62 44 .1.02 45 2.47 Page 2

Sen's Estimator (Median Q) is 0.0375 Time Period Observations 1/9/2006 1 2/17/2006 1 3/17/2006 1 4/18/2006 1 5/12/2006 1 7/10/2006 1 10/4/2006 1 1/5/2007 1 3/20/2007 1 6/9/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

. C = 18.39 M1 = (45- 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.116 = Q(13)

Upper limit is 0.132 = Q(33)

-0.116 < 0 < 0.132 indicating no trend in'data.

Page 3

0 S Cs-I 37 C)

A C:

0 0u C)

C0 co CD r- -

CO C o 0 a C0 C.

0 0DC

) C) CD) C (N C) C)

((D 00 (e)

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW11 OD Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.78 U (2/16/2006 a) ND<3.56 U (1/9/2006 a) (3.78 - 3.56)/(2 - 1) 0.22 ND<3.59 U (3/20/2006 a) ND<3.56 U (1/9/2006 a) (3.59- 3.56)/(3 - 1) 0.015 ND<3.355 U (4/18/2006-) ND<3.56 U (1/9/2006 a) (3.355 - 3.56)/(4 - 1) -0.0683333 ND<4.44 OK (5/12/2006 a) ND<3.56 U (1/9/2006 a) (4.44 - 3.56)/(5 - 1) 0.22 ND<2.89 OK (7/10/2006 a) ND<3.56 U (1/9/2006 a) (2.89 - 3.56)/(6 - 1) -0.134 ND<2.4 OK (7/11/2006 a) ND<3.56 U (1/9/2006 a) (2.4 - 3.56)/(7 - 1) -0.193333 ND<3.31 OK (10/4/2006 a) ND<3.56 U (1/9/2006 a) (3.31 - 3.56)/(8 - 1) -0.0357143 ND<4.11 OK (11/15/2006 a) ND<3.56 U (1/9/2006 a) (4.11 - 3.56)/(9 - 1) 0.06875 ND<3.26 OK (1/3/2007 a) ND<3.56 U (1/9/2006 a) (3.26- 3.56)/(10 - 1) -0.0333333 ND<3.68 OK (3/13/2007 a) ND<3.56 U (1/9/2006 a) (3.68- 3.56)/(11 - 1) 0.012 ND<3.54 OK (4/9/2007 a) ND<3.56 U (1/9/2006 a) (3.54 - 3.56)/(12 - 1) -0.00181818 ND<4.79 OK (6/13/2007 a) ND<3.56 U (1/9/2006 a) (4.79 - 3.56)/(13 - 1) 0.1025 ND<3.59 U (3/20/2006 a) ND<3.78 U (2/16/2006 a) (3.59 - 3.78)/(3 - 2) -0.19 ND<3.355 U (4/18/2006 -) ND<3.78 U (2/16/2006 a) (3.355 - 3.78)/(4 - 2) -0.2125 ND<4.44 OK (5/12/2006 a) ND<3.78 U (2/16/2006 a) (4.44 - 3.78)/(5 - 2) 0.22

. ND<2.89 OK (7/10/2006 a)

ND,<2.4 OK (7/11/2006 a)

ND<3.31 OK (10/4/2006 a)

ND<3.78 ND<3.78 ND<3.78 U (2/16/2006 U (2/16/2006 U (2/16/2006 a) a)

a)

(2.89 - 3.78)/(6 - 2)

(2.4 - 3.78)/(7 - 2)

(3.31 - 3.78)/(8 - 2)

-0.2225

-0.276

-0.0783333 ND<4.11 OK (11/15/2006 a) ND<3.78 U (2/16/2006 a) (4.11 - 3.78)/(9 - 2) 0.0471429 ND<3.26 OK (1/3/2007 a) ND<3.78 U (2/16/2006 a) (3.26 - 3.78)/(10 - 2) -0.065 ND<3.68 OK (3/13/2007 a) ND<3.78 U (2/16/2006 a) (3.68 - 3.78)/(11 - 2) -0.0111111 ND<3.54 OK (4/9/2007 a) ND<3.78 U (2/16/2006 a) (3.54 - 3.78)/(12 - 2) -0.024 ND<4.79 OK (6/13/2007 a) ND<3.78 U (2/16/2006 a) (4.79- 3.78)/(13- 2) 0.0918182 ND<3.355 U (4/18/2006 -) ND<3.59 U (3/20/2006 a) (3.355 - 3.59)/(4 - 3) -0.235 ND<4.44 OK (5/12/2006 a) ND<3.59 U (3/20/2006 a) (4.44 - 3.59)/(5 - 3) 0.425 ND<2.89 OK (7/10/2006 a) ND<3.59 U (3/20/2006 a) (2.89 - 3.59)/(6 - 3) -0.233333 ND<2.4 OK (7/11/2006 a) ND<3.59 U (3/20/2006 a) (2.4 - 3.59)/(7 - 3) -0.2975 ND<3.31 OK (10/4/2006 a) ND<3.59 U (3/20/2006 a) (3.31 - 3.59)/(8 - 3) -0.056 ND<4.11 OK (11/15/2006 a) ND<3.59 U (3/20/2006 a) (4.11 - 3.59)/(9 - 3) 0.0866667 ND<3.26 OK (1/3/2007 a) ND<3.59 U (3/20/2006 a) (3.26 - 3.59)/(10 - 3) -0.0471429 ND<3.68 OK (3/13/2007 a) ND<3.59 U (3/20/2006 a) (3.68 - 3.59)/(11 - 3) .0.01125 ND<3.54 OK (4/9/2007 a) ND<3.59 U (3/20/2006 a) (3.54 - 3.59)/(12 - 3) -0.00555556 ND<4.79 OK (6/13/2007 a) ND<3.59 U (3/20/2006 a) (4.79 - 3.59)/(13 - 3) 0.12 ND<4.44 OK (5/12/2006 a) ND<3.355 U (4/18/2006 ~) (4.44 - 3.355)/(5 - 4) 1.085 ND<2.89 OK (7/10/2006 a) ND<3.355 U (4/18/2006 ~) (2.89 - 3.355)/(6 - 4) -0.2325 ND<2.4 OK (7/11/2006 a) ND<3.355 U (4/18/2006 ~) (2.4 - 3.355)/(7 - 4) -0.318333 ND<3.31 OK (10/4/2006 a) ND<3.355 U (4/18/2006 ~) (3.31 - 3.355)/(8 - 4) -0.01125 ND<4.11 OK (11/15/2006 a) ND<3.355 U (4/18/2006 ~) (4.11 - 3.355)/(9 - 4) 0.151 ND<3.26 OK (1/3/2007 a) ND<3.355 U (4/18/2006~) (3.26 - 3.355)/(10 - 4) -0.0158333 ND<3.68 OK (3/13/2007 a) ND<3.355 U (4/18/2006 ~) (3.68 - 3.355)/(1.1 - 4) 0.0464286 ND<3.54 OK (4/9/2007 a) ND<3.355 U (4/18/2006 ~) (3.54 - 3.355)/(12- 4) 0.023125 ND<4.79 OK (6/13/2007 a) ND<3.355 U (4/18/2006 ~) (4.79 - 3.355)/(13- 4) 0.159444 ND<2.89 OK (7/10/2006 a) ND<4.44 OK (5/12/2006 a) (2.89 - 4.44)/(6 - 5) -1.55 Page 1

. ND<3.31 OK(7/11/2006 ND<2.4 OK (10/4/2006a)a)

ND<4.11 OK (11/15/2006 a)

ND<4.44 ND<4.44 ND<4.44 OK OK OK (5/12/2006 (5/12/2006 (5/12/2006 a) a)

a)

(2.4 - 4.44)/(7 - 5)

(3.31 - 4.44)/(8 - 5)

(4.11 - 4.44)/(9 - 5)

-1.02

-0.376667

-0.0825 ND<3.26 OK (1/3/2007 a) ND<4.44 OK (5/12/2006 a) (3.26- 4.44)/(10- 5) -0.236 ND<3.68 OK (3/13/2007 a) ND<4.44 OK (5/12/2006 a) (3.68 - 4.44)/(11 - 5) -0.126667 ND<3.54 OK (4/9/2007 a) ND<4.44 OK (5/12/2006 a) ,(3.54 - 4.44)/(12 - 5) -0.128571 ND<4.79 OK (6/13/2007 a) ND<4.44 OK (5/12/2006 a) (4.79 - 4.44)/(13 - 5) 0.04375 ND<2.4 OK (7/11/2006 a) ND<2.89 OK (7/10/2006 a) (2.4 - 2.89)/(7 - 6) -0.49 ND<3.31 OK (10/4/2006 a) ND<2.89 OK (7/10/2006 a) (3.31 - 2.89)/(8 - 6) 0.21 ND<4.11 OK (11/15/2006 a) ND<2.89 OK (7/10/2006 a) (4.11 - 2.89)/(9 - 6) 0.406667 ND<3.26 OK (1/3/2007 a) ND<2.89 OK (7/10/2006 a) (3.26 - 2.89)/(10- 6) 0.0925 ND<3.68 OK (3/13/2007 a) ND<2.89 OK (7/10/2006 a) (3.68 - 2.89)/(11 - 6) 0.158 ND<3.54 OK (4/9/2007 a) ND<2.89 OK (7/10/2006 a) (3.54- 2.89)/(12- 6) 0.108333 ND<4.79 OK (6/13/2007 a) ND<2.89 OK (7/10/2006 a) (4.79- 2.89)/(13- 6) 0.271429 ND<3.31 OK (10/4/2006 a) ND<2.4 OK (7/11/2006 a) (3.31 - 2.4)/(8 - 7) 0.91 ND<4.11 OK (11/15/2006 a) ND<2.4 OK (7/11/2006 a) (4.11 - 2.4)/(9 - 7) 0.855 ND<3.26 OK (1/3/2007 a) ND<2.4 OK (7/11/2006 a) (3.26- 2.4)/(10 - 7) 0.286667 ND<3.68 OK (3/13/2007 a) ND<2.4 OK (7/11/2006 a) (3.68 - 2.4)/(11 - 7) 0.32 ND<3.54 OK (4/9/2007 a) ND<2.4 OK (7/11/2006 a) (3.54 - 2.4)/(12 - 7) 0.228 ND<4.79 OK (6/13/2007 a) ND<2:4 OK (7/11/2006 a) (4.79 - 2.4)/(13 - 7) 0.398333 ND<4.11 OK (11/15/2006 a) ND<3.31 OK (10/4/2006 a) (4.11 - 3.31)/(9 - 8) 0.8 ND<3.26 OK (1/3/2007 a) ND<3.31 OK (10/4/2006 a) (3.26 - 3.31)/(10 - 8) -0.025 ND<3.68 OK (3/13/2007 a) ND<3.31 OK (10/4/2006 a) (3.68 - 3.31)/(11 - 8) 0.123333

. ND<3.54 ND<4.79 OK OK (4/9/2007 a)

(6/13/2007 a)

ND<3.31 ND<3.31 OK OK (10/4/2006 (10/4/2006 a) a)

(3.54 -

(4.79-3.31 )/(12- 8) 3.31 )/(13- 8) 0.0575 0.296 ND<3.26 OK (1/3/2007 a) ND<4.11 OK (11/15/2006 a) (3.26 - 4.11)/(10 - 9) -0.85 ND<3.68 OK (3/13/2007 a) ND<4.1 1 OK (11/15/2006 a) (3.68 - 4.11)/(11 - 9) -0.215 ND<3.54 OK (4/9/2007 a) ND<4.1 1 OK (11/15/2006 a) (3.54 - 4.11)/(12- 9) -0.19 ND<4.79 OK (6/13/2007 a) ND<4.1 1 OK (11/15/2006 a) (4.79- 4.11)/(13 - 9) 0.17 ND<3.68 OK (3/13/2007 a) ND<3.26 OK (1/3/2007 a) (3.68 - 3.26)/(11 0) 0.42 ND<3.54 OK (4/9/2007 a) ND<3.26 OK (1/3/2007 a) (3.54 - 3.26)/(12 - 10) 0.14 ND<4.79 OK (6/13/2007 a) ND<3.26 OK (1/3/2007 a) (4.79- 3.26)/(13 - 10) 0.51 ND<3.68 OK (3/13/2007 a) (3.54 - 3.68)/(12 - 11)

ND<3.54 OK (4/9/2007 a) -0.14 ND<4.79 OK (6/13/2007 a) ND<3.68 OK (3/13/2007 a) (4.79 - 3.68)/(13 - 11) 0.555 ND<4.79 OK (6/13/2007 a) ND<3.54 OK (4/9/2007 a) (4.79 - 3.54)/(13 - 12) 1.25 Number of Q values = 78 Ordered 0 Values n Q 1 -1.55 2 -1.02 3 -0.85 4 -0.49 5 -0.376667 6 -0.318333 7 -0.2975 8 -0.276 9 -0.236 Page 2

-0.235 10 11 -0.233333 12 -0.2325 13 -0.2225 14 -0.215 15 -0.2125 16 -0.193333 17 -0.19 18 -0.19 19 -0.14 20 -0.134 21 -0.128571 22 -0.126667 23 -0.0825 24 -0.0783333 25 -0.0683333 26 -0.065 27 -0.056 28 -0.0471429 29 -0.0357143 30 -0.0333333 31 -0.025 32 -0.024 33 -0.0158333 34 -0.01125 35 -0.0111111 36 -0.00555556

. 37 38 39

-0.00181818 0.01125 0.012 40 0.015 41 0.023125 42 0.04375 43 0.0464286 44 0.0471429 45 0.0575 46 0.06875 47 0.0866667 48 0.0918182 49 0.0925 50 0.1025 51 0.108333 52 0.12 53 0.123333 54 0.14 55 0.151 56 0.158 57 0.159444 58 0.17 59 0.21 60 0.22 61 0.22 62 0.22 63 0.228 64 0.271429 65 0.286667 66 0.296 Page 3

0.32 O 68 67 0.398333 69 0.406667 70 0.42 71 0.425 72 0.51 73 0.555 74 0.8 75 0.855 76 0.91 77 1.085 78 1.25 Sen's Estimator (Median Q) is 0.0135 Time Period Observations 1/9/2006 1 2/16/2006 1 3/20/2006 1 4/18/2006 1 5/12/2006 1 7/10/2006 1 7/11/2006 1 10/4/2006 1 11/15/2006 1 1/3/2007 1 3/13/2007 1

. 4/9/2007 6/13/2007 1

1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 4836 b = 15444 c =312 Group Variance = 268.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 26.9609 M1 = (78 - 26.9609)/2.0 = 25.5196 M2 = (78 + 26.9609)/2.0 + 1 = 53.4804 Lower limit is -0.065 = 0(26)

Upper limit is 0.123333 = Q(53)

-0.065 < 0 < 0.123333 indicating no trend in data.

Page 4

0 Cs-I 37

a 0D 0,

(0 co 0o (0 00 C) o0000 0 0 C)

0) (N0) 0) N M ~ (0 co (O Sample Date Page-1

0 Sen's Slope Analysis Parameter: Cs-137 Location: MW11OS Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xJ Xk (Xj - Xk)/(j-k) Q ND<3.75 U (2/9/2006 a) ND<2.85 U (1/9/2006 a) (3.75 - 2.85)/(2 - 1) 0.9 ND<3.86 U (3/20/2006 a) ND<2.85 U (1/9/2006 a) (3.86 - 2.85)/(3 - 1) 0.505 ND<3.92 U (4/19/2006 a) ND<2.85 U (1/9/2006 a) (3.92- 2.85)/(4 - 1) 0.356667 ND<5.56 OK (5/12/2006 a) ND<2.85 U (1/9/2006 a) (5.56 - 2.85)/(5 - 1) 0.6775 ND<4.15 OK (7/11/2006 a) ND<2.85 U (1/9/2006 a) (4.15- 2.85)/(6 - 1) 0.26 ND<3.09 OK (10/4/2006 a) ND<2.85 U (1/9/2006 a) (3.09 - 2.85)/(7 - 1) 0.04 ND<3.17 OK (11/15/2006 a) ND<2.85 U (1/9/2006 a) (3.17- 2.85)/(8 - 1) 0.0457143 ND<3.19 OK (1/5/2007 a) ND<2.85 U (1/9/2006 a) (3.19- 2.85)/(9 - 1) 0.0425 ND<2.53 OK (3/13/2007 a) ND<2.85 U (1/9/2006 a) (2.53- 2.85)/(10 - 1) -0.0355556 ND<3.62 OK (4/9/2007 a) ND<2.85 U (1/9/2006 a) (3.62 - 2.85)/(11 - 1) 0.077 ND<2.05 OK (6/12/2007 a) ND<2.85 U (1/9/2006 a) (2.05- 2.85)/(12 - 1) -0.0727273 ND<3.86 U (3/20/2006 a) ND<3.75 U (2/9/2006 a) (3.86 - 3.75)/(3 - 2) 0.11 ND<3.92 U (4/19/2006 a) ND<3.75 U (2/9/2006 a) (3.92 - 3.75)/(4 - 2) 0.085 ND<5.56 OK (5/12/2006 a) ND<3.75 U (2/9/2006 a) (5.56 - 3.75)/(5 - 2) 0.603333 ND<4.15 OK (7/11/2006 a) ND<3.75 U (2/9/2006 a) (4.15- 3.75)/(6 - 2) 0.1

. ND<3.09 OK (10/4/2006 a)

ND<3.17 OK (11/15/2006 a)

ND<3.19 OK (1/5/2007 a)

ND<3.75 ND<3.75 ND<3.75 U (2/9/2006 a)

U (2/9/2006 a)

(3.09 - 3.75)/(7 - 2)

(3.17 - 3.75)/(8 - 2)

(3.19 - 3.75)/(9 - 2)

-0.132

-0.0966667

-0.08 ND<2.53 OK (3/13/2007 a) ND<3.75 U (2/9/2006 a) (2.53 - 3.75)/(10 - 2) -0.1525 ND<3.62 OK (4/9/2007 a) ND<3.75 U (2/9/2006 a) (3.62 - 3.75)/(11 - 2) -0.0144444 ND<2.05 OK (6/12/2007 a) ND<3.75 U (2/9/2006 a) (2.05 - 3.75)/(12 - 2) -0.17 ND<3.92 U (4/19/2006 a) ND<3.86 U (3/20/2006 a) (3.92 - 3.86)/(4 - 3) 0.06 ND<5.56 OK (5/12/2006 a) ND<3.86 U (3/20/2006 a) (5.56 - 3.86)/(5 - 3) 0.85 ND<4.15 OK (7/11/2006 a) ND<3.86 U (3/20/2006 a) (4.15- 3.86)/(6- 3) 0.0966667 ND<3.09 OK (10/4/2006 a) ND<3.86 U (3/20/2006 a) (3.09 - 3.86)/(7 - 3) -0.1925 ND<3.17 OK (11/15/2006 a) ND<3.86 U (3/20/2006 a) (3.17 - 3.86)/(8 - 3) -0.138 ND<3.19 OK (1/5/2007 a) ND<3.86 U (3/20/2006 a) (3.19- 3.86)/(9 - 3) -0.111667 ND<2.53 OK (3/13/2007 a) ND<3.86 U (3/20/2006 a) (2.53 - 3.86)/(10 - 3) -0.19 ND<3.62 OK (4/9/2007 a) ND<3.86 U (3/20/2006 a) (3.62 - 3.86)/(11 - 3) -0.03 ND<2.05 OK (6/12/2007 a) ND<3.86 U (3/20/2006 a) (2.05 - 3.86)/(12 - 3) -0.201111 ND<5.56 OK (5/12/2006 a) ND<3.92 U (4/19/2006 a) (5.56 - 3.92)/(5 - 4) 1.64 ND<4.15 OK (7/11/2006 a) ND<3.92 U (4/19/2006 a) (4.15- 3.92)/(6- 4) 0.115 ND<3.09 OK (10/4/2006 a) ND<3.92 U (4/19/2006 a) (3.09 - 3.92)/(7 - 4) -0.276667 ND<3.17 OK (11/15/2006 a) ND<3.92 U (4/19/2006 a) (3.17 - 3.92)/(8 - 4) -0.1875 ND<3.19 OK (1/5/2007 a) ND<3.92 U (4/19/2006 a) (3.19 - 3.92)/(9 - 4) -0.146 ND<2.53 OK (3/13/2007 a) ND<3.92 U (4/19/2006 a) (2.53 - 3.92)/(10 - 4) -0.231667 ND<3.62 OK (4/9/2007 a) ND<3.92 U (4/19/2006 a) (3.62 - 3.92)/(11 - 4) -0.0428571 ND<2.05 OK (6/12/2007 a) ND<3.92 U (4/19/2006 a) (2.05 - 3.92)/(12- 4) -0.23375 ND<4.15 OK (7/11/2006 a) ND<5.56 OK (5/12/2006 a) (4.15- 5.56)/(6 - 5) -1.41

. ND<3.09 ND<3.17 ND<3.19 OK OK OK (10/4/2006 a)

(11/15/2006 a)

(1/5/2007 a)

ND<5.56 ND<5.56 ND<5.56 OK OK OK (5/12/2006 (5/12/2006 (5/12/2006 a) a)

a)

(3.09 - 5.56)/(7 - 5)

(3.17 - 5.56)/(8 - 5)

(3.19- 5.56)/(9 - 5)

-1.235

-0.796667

-0.5925 ND<2.53 OK (3/13/2007 a) ND<5.56 OK (5/12/2006 a) (2.53 - 5.56)/(10 - 5) -0.606 Page 1

ND<5.56 OK (5/12/2006 a) (3.62 - 5.56)/(11 - 5) -0.323333 O ND<3.62 OK (6/12/2007 ND<2.05 (4/9/2007 a)a) ND<5.56 OK (5/12/2006 a) (2.05 - 5.56)/(12 - 5) -0.501429 ND<3.09 OK (10/4/2006 a) ND<4.15 OK (7/11/2006 a) (3.09- 4.15)/(7 - 6) -1.06 ND<3.17 OK (11/15/2006 a) ND<4.15 OK (7/11/2006 a) (3.17- 4.15)/(8 - 6) -0.49 ND<3.19 OK (1/5/2007 a) ND<4.15 OK (7/11/2006 a) (3.19- 4.15)/(9 - 6) -0.32 ND<2.53 OK (3/13/2007 a) ND<4.15 OK (7/11/2006 a) (2.53 - 4.15)/(10- 6) -0.405 ND<3.62 OK (4/9/2007 a) ND<4.15 OK (7/11/2006 a) (3.62 - 4.15)/(11 - 6) -0.106 ND<2.05 OK (6/12/2007 a) ND<4.15 OK (7/11/2006 a) (2.05- 4.15)/(12 - 6) -0.35 ND<3.17 OK (11/15/2006 a) ND<3.09 OK (10/4/2006 a) (3.17 - 3.09)/(8 - 7) 0.08 ND<3.19 OK (1/5/2007 a) ND<3.09 OK (10/4/2006 a) (3.19- 3.09)/(9 - 7) 0.05 ND<2.53 OK (3/13/2007 a) ND<3.09 OK (10/4/2006 a) (2.53 - 3.09)/(10 - 7) -0.186667 ND<3.62 OK (4/9/2007 a) ND<3.09 OK (10/4/2006 a) (3.62 - 3.09)/(11 - 7) 0.1325 ND<2.05 OK (6/12/2007 a) ND<3.09 OK (10/4/2006 a) (2.05 - 3.09)/(12 - 7) -0.208 ND<3.19 OK (1/5/2007 a) ND<3.17 OK (11/15/2006 a) (3.19- 3.17)/(9- 8) 0.02 ND<2.53 OK (3/13/2007 a) ND<3.1.7 OK (11/15/2006 a) (2.53 - 3.17)/(10- 8) -0.32 ND<3.62 OK (4/9/2007 a) ND<3.17 OK (11/15/2006 a) (3.62- 3.17)/(11 - 8) 0.15 ND<2.05 OK (6/12/2007 a) ND<3.17 OK (11/15/2006 a) (2.05- 3.17)/(12- 8) -0.28 ND<2.53 OK (3/13/2007 a) N D<3.19 OK (1/5/2007 a) (2.53 - 3.19)/(10- 9) -0.66 ND<3.62 OK (4/9/2007 a) ND<3.19 OK (1/5/2007 a) (3.62- 3.19)/(11 - 9) 0.215 ND<2.05 OK (6/12/2007 a) ND<3.19 OK (1/5/2007 a) (2.05 - 3.19)/(12 - 9) -0.38 ND<3.62 OK (4/9/2007 a) ND<2.53 OK (3/13/2007 a) (3.62 - 2.53)/(11 - 10) 1.09 ND<2.05 OK (6/12/2007 a) ND<2.53 OK (3/13/2007 a) (2.05 - 2.53)/(12 - 10) -0.24 SND<2.05 OK (6/12/2007 a) ND<3.62 OK (4/9/2007 a) (2.05 - 3.62)/(12 - 11) -1.57 Number of 0 values = 66 Ordered o Values n Q 1 -1.57 2 -1.41 3 -1.235 4 -1.06 5 -0.796667 6 -0.66 7 -0.606 8 -0.5925 9 -0.501429 10 -0.49 11 -0.405 12 -0.38 13 -0.35 14 -0.323333 15 -0.32 16 -0.32 17 -0.28 18 -0.276667

. 19 20 21

-0.24

-0.23375

-0.231667

.22 -0.208 Page 2

24 23 -0.1925

-0.201111 25 -0.19 26 -0.1875 27 -0.186667 28 -0.17 29 -0.1525 30 -0.146 31 -0.138 32 -0.132 33 -0.111667 34 -0.106 35 -0.0966667 36 -0.08 37 -0.0727273 38 -0.0428571 39 -0.0355556 40 -0.03 41 -0.0144444 42 0.02 43 0.04 44 0.0425 45 0.0457143 46 0.05 47 0.06 48 0.077 49 .0.08 50 0.085 51 0.0966667 52 0.1 53 0.11 54 0.115 55 0.1325 56 0.15 57 0.215 58 0.26 59 0.356667 60 0.505 61 0.603333 62 0.6775 63 0.85 64 0.9 65 1.09 66 1.64 Sen's Estimator (Median Q) is -0.108833 Time Period Observations 1/9/2006 1 2/9/2006 1 3/20/2006 1 4/19/2006 1 5/12/2006 1 7/11/20061 10/4/2006 1 11/15/2006 1 1/5/2007 1 3/13/2007 1 Page 3

. 6/12/2007 4/9/2007 11 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a 3828 b= 11880 c = 264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is -0.231667 = Q(21)

Upper limit is 0.05 = Q(46)

-0.231667< 0 < 0.05 indicating no trend in data.

Page 4

Cs-1 37-0.

c 0

C)

CD (0 0 (o 1- 1 r-C,0 0 0C0 0 0 0 0) o4 Q 0 0I 04 0 0 QN 7-(04 Q- .z CI c I c - CI)

Sample Date Page I

Sen's Slope Analysis Parameter: Cs-137 Location: MW112S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.48 U (2/17/2006 a) ND<2.55 U (1/10/2006 a) (3.48- 2.55)/(2 - 1) 0.93 ND<2.92 U (3/20/2006 a) ND<2.55 U (1/10/2006 a) (2.92- 2.55)/(3 - 1) 0.185 ND<4.12 U (4/19/2006 a) ND<2.55 U (1/10/2006 a) (4.12- 2.55)/(4 - 1) 0.523333 ND<4.47 OK (5/12/2006 a) ND<2.55 U (1/10/2006 a) (4.47- 2.55)/(5 - 1) 0.48 ND<3.03 OK (7/11/2006 a) ND<2.55 U (1/10/2006 a) (3.03- 2.55)/(6 - 1) 0.096 ND<3.14 OK (10/4/2006 a) ND<2.55 U (1/10/2006 a) (3.14- 2.55)/(7 - 1) 0.0983333 ND<3.61 OK (1/3/2007 a) ND<2.55 U (1/10/2006 a) (3.61 - 2.55)/(8 - 1) 0.151429 ND<4.53 OK (3/15/2007 a) ND<2.55 U (1/10/2006 a) (4.53- 2.55)/(9 - 1) 0.2475 ND<2.58 OK (6/12/2007 a) ND<2.55 U (1/10/2006 a) (2.58- 2.55)/(10 - 1) 0.00333333 ND<2.92 U (3/20/2006 a) ND<3.48 U (2/17/2006 a) (2.92 - 3.48)/(3 - 2) -0.56 ND<4.12 U (4/19/2006 a) ND<3.48 U (2/17/2006 a) (4.12- 3.48)/(4- 2) 0.32 ND<4.47 OK (5/12/2006 a) ND<3.48 U (2/17/2006 a) (4.47 - 3.48)/(5 - 2) 0.33 ND<3.03 OK (7/11/2006 a) ND<3.48 U (2/17/2006 a) (3.03 - 3.48)/(6 - 2) -0.1125 ND<3.14 OK (10/4/2006 a) ND<3.48 U (2/17/2006 a) (3.14 - 3.48)/(7 - 2) -0.068 ND<3.61 OK (1/3/2007 a) ND<3.48 U (2/17/2006 a) (3.61 - 3.48)/(8 - 2) 0.0216667 ND<4.53 OK (3/15/2007 a) ND<3.48 U (2/17/2006 a) (4.53 - 3.48)/(9 - 2) 0.15 ND<2.58 OK (6/12/2007 a) ND<3.48 U (2/17/2006 a) (2.58 - 3.48)/(10 - 2) -0.1125 ND<4.12 U (4/19/2006 a) ND<2.92 U (3/20/2006 a) (4.12- 2.92)/(4 - 3) 1.2 ND<4.47 OK (5/12/2006 a) ND<2.92 U (3/20/2006 a) (4.47 - 2.92)/(5 - 3) 0.775 ND<3.03 OK (7/11/2006 a) ND<2.92 U (3/20/2006 a) (3.03 - 2.92)/(6 - 3) 0.0366667 ND<3.14 OK (10/4/2006 a) ND<2.92 U (3/20/2006 a) (3.14 - 2.92)/(7 - 3) 0.055 ND<3.61 OK (1/3/2007 a) ND<2.92 U (3/20/2006 a) (3.61 - 2.92)/(8 - 3) 0.138 ND<4.53 OK (3/15/2007 a) ND<2.92 U (3/20/2006 a) (4.53 - 2.92)/(9 - 3) 0.268333 ND<2.58 OK (6/12/2007 a) ND<2.92 U (3/20/2006 a) (2.58 - 2.92)/(10 - 3) -0.0485714 ND<4.47 OK (5/12/2006 a) ND<4.12 U (4/19/2006 a) (4.47- 4.12)/(5- 4) 0.35 ND<3.03 OK (7/11/2006 a) ND<4.12 U (4/19/2006 a) (3.03 - 4.12)/(6 - 4) -0.545 ND<3.14 OK (10/4/2006 a) ND<4.12 U (4/19/2006 a) (3.14- 4.12)/(7 - 4) -0.326667 ND<3.61 OK (1/3/2007 a) ND<4.12 U (4/19/2006 a) (3.61 - 4.12)/(8 - 4) -0.1275 ND<4.53 OK (3/15/2007 a) ND<4.12 U (4/19/2006 a) (4.53 - 4.12)/(9 - 4) 0.082 ND<2.58 OK (6/12/2007 a) ND<4.12 U (4/19/2006 a) (2.58 - 4.12)/(10 - 4) -0.256667 ND<3.03 OK (7/11/2006 a) ND<4.47 OK (5/12/2006 a) (3.03 - 4.47)/(6 - 5) -1.44 ND<3.14 OK (10/4/2006 a) ND<4.47 OK (5/12/2006 a) (3.14 - 4.47)/(7 - 5) -0.665 ND<3.61 OK (1/3/2007 a) ND<4.47 OK (5/12/2006 a) (3.61 - 4.47)/(8 - 5) -0.286667 ND<4.53 OK (3/15/2007 a) ND<4.47 OK (5/12/2006 a) (4.53 - 4.47)/(9 - 5) 0.015 ND<2.58 OK (6/12/2007 a) ND<4.47 OK (5/12/2006 a) (2.58 - 4.47)/(10 - 5) -0.378 ND<3.14 OK (10/4/2006 a) ND<3.03 OK (7/11/2006 a) (3.14 - 3.03)/(7 - 6) 0.11 ND<3.61 OK (1/3/2007 a) ND<3.03 OK (7/11/2006 a) (3.61 - 3.03)/(8 - 6) 0.29 ND<4.53 OK (3/15/2007 a) ND<3.03 OK (7/11/2006 a) (4.53 - 3.03)/(9 - 6) 0.5 ND<2.58 OK (6/12/2007 a) ND<3.03 OK (7/11/2006 a) (2.58- 3.03)/(10- 6) -0.1125 ND<3.61 OK (1/3/2007 a) ND<3.14 OK (10/4/2006 a) (3.61 - 3.14)/(8 - 7) 0.47 ND<4.53 OK (3/15/2007 a) ND<3.14 OK (10/4/2006 a) (4.53- 3.14)/(9 - 7) 0.695 Page 1

ND<2.58 OK (6/12/2007 a) ND<3.14 OK (10/4/2006 a) (2.58 - 3.14)/(10 - 7) -0.186667 ND<4.53 OK (3/15/2007 a) ND<3.61 OK.(1/3/2007 a) (4.53 - 3.61)/(9 - 8) 0.92 ND<2.58 OK (6/12/2007 a) ND<3.61 OK (1/3/2007 a) (2.58 - 3.61)/(10 - 8) -0.515 ND<2.58 OK (6/12/2007 a) ND<4.53 OK (3/15/2007 a) (2.58- 4.53)/(10 - 9) -1.95 Number of Q values = 45 Ordered 0 Values n Q 1 -1.95 2 -1.44 3 -0.665 4 -0.56 5 -0.545 6 -0.515 7 -0.378 8 -0.326667 9 -0.286667 10 -0.256667 11 -0.186667 12 -0.1275 13 -0.1125 14 -0.1125

. 15 16 17

-0.1125

-0.068

-0.0485714 18 0.00333333 19 0.015 20 0.0216667 21 0.0366667 22 0.055 23 0.082 24 0.096 25 0.0983333 26 0.11 27 0.138 28 0.15 29 0.151429 30 0.185 31 0.2475 32 0.268333 33 0.29 34 0.32 35 0.33 36 0.35 37 0.47 38 0.48 39 0.5 40 0.523333 41 0.695 42 0.775 43 0.92 44 0.93 45 1.2 Page 2

Sen's Estimator (Median Q) is 0.082 Time Period Observations 1/10/2006 1 2/17/2006 1 3/20/2006 1 4/19/2006 1 5/12/2006 1 7/11/2006 1 10/4/2006 1 1/3/2007 1 3/15/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485

. C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.1125 = Q(13)

Upper limit is 0.29 = Q(33)

-0.1125 < 0 < 0.29 indicating no trend in data.

Page 3

0 Cs-1 37

-J 00~

C 0

C-)

C 0

0 co (0 (D r.- 0C.- 0-C0 (0 C, 0 0D C) 0 0q U). .(,N 0 QN 0> ao (0 CI) QN E2 co Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW113S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<4.02 U (2/6/2006 a) ND<5.84 U (1/10/2006 a) (4.02 - 5.84)/(2 - 1) -1.82 ND<4.32 U (3/20/2006 a) ND<5.84 U (1/10/2006 a) (4.32 - 5.84)/(3 - 1) -0.76 ND<3.77 U (4/18/2006 a) ND<5.84 U (1/10/2006 a) (3.77 - 5.84)/(4 - 1) -0.69 ND<4.03 OK (5/12/2006 a) ND<5.84 U (1/10/2006 a) (4.03 - 5.84)/(5 - 1) -0.4525 ND<2.95 OK (7/11/2006 a) ND<5.84 U (1/10/2006 a) (2.95 - 5.84)/(6 - 1) -0.578 ND<3.41 OK (10/4/2006 a) ND<5.84 U (1/10/2006 a) (3.41 - 5.84)/(7 - 1) -0.405 ND<3.53 OK (1/4/2007 a) ND<5.84 U (1/10/2006 a) (3.53 - 5.84)/(8 - 1) -0.33 ND<3.76 OK (3/14/2007 a) ND<5.84 U (1/10/2006 a) (3.76 - 5.84)/(9 - 1) -0.26 ND<4.2 OK (6/12/2007 a) ND<5.84 U (1/10/2006 a) (4.2- 5.84)/(10 - 1) -0.182222 ND<4.32 U (3/20/2006 a) ND<4.02 U (2/6/2006 a) (4.32 - 4.02)/(3 - 2) 0.3 ND<3.77 U (4/18/2006 a) ND<4.02 U (2/6/2006 a) (3.77 - 4.02)/(4 - 2) -0.125 ND<4.03 OK (5/12/2006 a) ND<4.02 U (2/6/2006 a) (4.03 - 4.02)/(5 - 2) 0.00333333 ND<2.95 OK (7/11/2006 a) ND<4.02 U (2/6/2006 a) (2.95 - 4.02)/(6 - 2) -0.2675 ND<3.41 OK (10/4/2006 a) ND<4.02 U (2/6/2006 a) (3.41 - 4.02)/(7 - 2) -0.122 ND<3.53 OK (1/4/2007 a) ND<4.02 U (2/6/2006 a) (3.53 - 4.02)/(8 - 2) -0.0816667 ND<3.76 OK (3/14/2007 a) ND<4.02 U (2/6/2006 a) (3.76 - 4.02)/(9 - 2) -0.0371429 ND<4.2 OK (6/12/2007 a) ND<4.02 U (2/6/2006 a) (4.2 - 4.02)/(10.- 2) 0.0225 ND<3.77 U (4/18/2006 a) ND<4.32 U (3/20/2006 a) (3.77 - 4.32)/(4 - 3) -0.55 ND<4.03 OK (5/12/2006 a) ND<4.32 U (3/20/2006 a) (4.03 - 4.32)/(5 - 3) -0.145 ND<2.95 OK (7/11/2006 a) ND<4.32 U (3/20/2006 a) (2.95 - 4.32)/(6 - 3) -0.456667 ND<3.41 OK (10/4/2006 a) ND<4.32 U (3/20/2006 a) (3.41 - 4.32)/(7 - 3) -0.2275 ND<3.53 OK (1/4/2007 a) ND<4.32 U (3/20/2006 a) (3.53 - 4.32)/(8 - 3) -0.158 ND<3.76 OK (3/14/2007 a) ND<4.32 U (3/20/2006 a) (3.76 - 4.32)/(9 - 3) -0.0933333 ND<4.2 OK (6/12/2007 a) ND<4.32 U (3/20/2006 a) (4.2 - 4.32)/(10 - 3) -0.0171429 ND<4.03 OK (5/12/2006 a) ND<3.77 U (4/18/2006 a) (4.03 - 3.77)/(5 - 4) 0.26 ND<2.95 OK (7/11/2006 a) ND<3.77 U (4/18/2006 a) (2.95 - 3.77)/(6 - 4) -0:41 ND<3.41 OK (10/4/2006 a) ND<3.77 U (4/18/2006 a) (3.41 - 3.77)/(7 - 4) -0.12 ND<3.53 OK (1/4/2007 a) ND<3.77 U (4/18/2006 a) (3.53 - 3.77)/(8 - 4) -0.06 ND<3.76 OK (3/14/2007 a) ND<3.77 U (4/18/2006 a) (3.76 - 3.77)/(9 - 4) -0.002 ND<4.2 OK (6/12/2007 a) ND<3.77 U (4/18/2006 a) (4.2 - 3.77)/(10 - 4) 0.0716667 ND<2.95 OK (7/11/2006 a) ND<4.03 OK (5/12/2006 a) (2.95 - 4.03)/(6 - 5) -1.08 ND<3.41 OK (10/4/2006 a) ND<4.03 OK (5/12/2006 a) (3.41 - 4.03)/(7 - 5) -0.31 ND<3.53 OK (1/4/2007 a) ND<4.03 OK (5/12/2006 a) (3.53 - 4.03)/(8 - 5) -0.166667 ND<3.76 OK (3/14/2007 a) ND<4.03 OK (5/12/2006 a) (3.76 - 4.03)/(9 - 5) -0.0675 ND<4.2 OK (6/12/2007 a) ND<4.03 OK (5/12/2006 a) (4.2- 4.03)/(10- 5) 0.034 ND<3.41 OK (10/4/2006 a) ND<2.95 OK (7/11/2006 a) (3.41 - 2.95)/(7 - 6) 0.46 ND<3.53 OK (1/4/2007 a) ND<2.95 OK (7/11/2006 a) (3.53 - 2.95)/(8 - 6) 0.29 ND<3.76 OK (3/14/2007 a) ND<2.95 OK (7/11/2006 a) (3.76 - 2.95)/(9 - 6) 0.27 ND<4.2 OK (6/12/2007 a) ND<2.95 OK (7/11/2006 a) (4.2- 2.95)/(10- 6) 0.3125 ND<3.53 OK (1/4/2007 a) ND<3.41 OK (10/4/2006 a) (3.53 - 3.41)/(8- 7) 0.12 ND<3.76 OK (3/14/2007 a) ND<3.41 OK (10/4/2006 a) (3.76 - 3.41)/(9 - 7) 0.175 Page 1

ND<4.2 OK (6/12/2007 a) ND<3.41 OK (10/4/2006 a) (4.2- 341)/(10- 7) 0.263333 ND<3.76 OK (3/14/2007 a) ND<3.53 OK (1/4/2007 a) (3.76 - 3.53)/(9 - 8) 0.23 ND<4.2 OK (6/12/2007 a) ND<3.53 OK (1/4/2007 a) (4.2 - 3.53)/(10 - 8) 0.335 ND<4.2 OK (6/12/2007 a) ND<3.76 OK (3/14/2007 a) (4.2 - 3.76)/(10 - 9) 0.44 Number of Q values = 45 Ordered Q Values n Q 1 -1.82 2 -1.08 3 -0.76 4 -0.69 5 -0.578 6 -0.55 7 -0.456667 8 -0.4525 9 -0.41 10 .-0.405 11 -0.33 12 -0.31 13 -0.2675 14 -0.26

. 15 16 17

-0.2275

-0.182222

-0.166667 18 -0.158 19 -0.145 20 -0.125 21 -0.122 22 -0.12 23 -0.0933333 24 -0.0816667 25 -0.0675 26 -0.06 27 -0.0371429 28 -0.0171429 29 -0.002 30 0'00333333 31 0.0225 32 0.034 33 0.0716667 34 0.12 35 0.175 36 0.23 37 0.26 38 0.263333 39 0.27 40 0.29 41 0.3 42 0.3125 43 0.335 44 0.44 45 0.46 Page 2

Sen's Estimator (Median Q) is -0.0933333 Time Period Observations 1/10/2006 1 2/6/2006 1 3/20/2006 1 4/18/2006 1 5/12/2006 1 7/11/2006 1 10/4/2006 1 1/4/2007 1 3/14/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

.M1 C = 18.39

= (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.2675 = Q(13)

Upper limit is 0.0716667 = Q(33)

-0.2675 < 0 < 0.0716667 indicating no trend in data.

Page 3

Cs-1 37 Time-Series Graph of MWI17S 4

-J 3-2 C) 0 o o(0 00 0 0o Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW117S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<2.57 U (2/13/2006 a) ND<2.39 U (1/10/2006 a) (2.57 - 2.39)/(2 - 1) 0.18 ND<3.38 U (3/20/2006 a) ND<2.39 U (1/10/2006 a) (3.38 - 2.39)/(3 - 1) 0.495 ND<3.65 U (4/19/2006 a) ND<2.39 U (1/10/2006 a) (3.65 - 2.39)/(4 - 1) 0.42 ND<4.12 OK (5/12/2006 -) ND<2.39 U (1/10/2006 a) (4.12 - 2.39)/(5 - 1) 0.4325 ND<3.28 OK (7/11/2006 a) ND<2.39 U (1/10/2006 a) (3.28- 2.39)/(6 - 1) 0.178 ND<3.36 OK (10/4/2006 a) ND<2.39 U (1/10/2006 a) (3.36 - 2.39)/(7 - 1) 0.161667 ND<3.835 OK (1/3/2007 -) ND<2.39 U (1/10/2006 a) (3.835 - 2.39)/(8 - 1) 0.206429 ND<2.4 OK (3/14/2007 a) ND<2.39 U (1/10/2006 a) (2.4 - 2.39)/(9 - 1) 0.00125 ND<3.83 OK (6/12/2007 a) ND<2.39 U (1/10/2006 a) (3.83- 2.39)/(10 - 1) 0.16 ND<3.38 U (3/20/2006 a) ND<2.57 U (2/13/2006 a) (3.38 - 2.57)/(3 - 2) 0.81 ND<3.65 U (4/19/2006 a) ND<2.57 U (2/13/2006 a) (3.65 - 2.57)/(4 - 2) 0.54 ND<4.12 OK (5/12/2006 -) ND<2.57 U (2/13/2006 a) (4.12- 2.57)/(5 2) 0.51 6667 ND<3.28 OK (7/11/2006 a) ND<2.57 U (2/13/2006 a) (3.28 - 2.57)/(6 - 2) 0.1775 ND<3.36 OK (10/4/2006 a) ND<2.57 U (2/13/2006 a) (3.36 - 2.57)/(7 - 2) 0.158 ND<3.835 OK (1/3/2007 -) ND<2.57 U (2/13/2006 a) (3.835 - 2.57)/(8 - 2) 0.210833 ND<2.4 OK (3/14/2007 a) ND<2.57 U (2/13/2006 a) (2.4 - 2.57)/(9 - 2) -0.0242857 ND<3.83 OK (6/12/2007 a) ND<2.57 U (2/13/2006 a) (3.83- 2.57)/(10- 2) 0.1575 ND<3.65 U (4/19/2006 a) ND<3.38 U (3/20/2006 a) (3.65 - 3.38)/(4 - 3) 0.27 ND<4.12 OK (5/12/2006 ~) ND<3.38 U (3/20/2006 a) (4.12- 3.38)/(5 - 3) 0.37 ND<3.28 OK (7/11/2006 a) ND<3.38 U (3/20/2006 a) (3.28 - 3.38)/(6 - 3) -0.0333333 ND<3.36 OK (10/4/2006 a) ND<3.38 U (3/20/2006 a) (3.36 - 3.38)/(7 - 3) -0.005 ND<3.835 OK (1/3/2007 -) ND<3.38 U (3/20/2006 a) (3.835 - 3.38)/(8 - 3) 0.091 ND<2.4 OK (3/14/2007 a) ND<3.38 U (3/20/2006 a) (2.4 - 3.38)/(9 - 3) -0.163333 ND<3.83 OK (6/12/2007 a) ND<3.38 U (3/20/2006 a) (3.83 - 3.38)/(10 - 3) 0.0642857 ND<4.12 OK (5/12/2006 -) ND<3.65 U (4/19/2006 a) (4.12 - 3.65)/(5 - 4) 0.47 ND<3.28 OK (7/11/2006 a) ND<3.65 U (4/19/2006 a) (3.28 - 3.65)/(6 - 4) -0.185 ND<3.36 OK (10/4/2006 a) ND<3.65 U (4/19/2006 a) (3.36 - 3.65)/(7 - 4) -0.0966667 ND<3.835 OK (1/3/2007 -) ND<3.65 U (4/19/2006 a) (3.835 - 3.65)/(8 - 4) 0.04625 ND<2.4 OK (3/14/2007 a) ND<3.65 U (4/19/2006 a) (2.4 - 3.65)/(9 - 4) -0.25 ND<3.83 OK (6/12/2007 a) ND<3.65 U (4/19/2006 a) (3.83 - 3.65)/(10 - 4) 0.03 ND<3.28 OK (7/11/2006 a) ND<4.12 OK (5/12/2006 ~ (3.28 - 4.12)/(6 - 5) -0.84 ND<3.36 OK (10/4/2006 a) ND<4.12 OK (5/12/2006 ~ (3.36 - 4.12)/(7 - 5) -0.38 ND<3.835 OK (1/3/2007 -) ND<4.12 OK (5/12/2006 ~ (3.835 - 4.12)/(8 - 5) -0.095 ND<2.4 OK (3/14/2007 a) ND<4.12 OK (5/12/2006 ~ (2.4- 4.12)/(9 - 5) -0.43 ND<3.83 OK (6/12/2007 a) ND<4.12 OK (5/12/2006 ~ (3.83 - 4.12)/(10 - 5) -0.058 ND<3.36 OK (10/4/2006 a) ND<3.28 OK (7/11/2006 a) (3.36 - 3.28)/(7 - 6) 0.08 ND<3.835 OK (1/3/2007 -) ND<3.28 OK (7/11/2006 a) (3.835- '3.28)/(8 - 6) 0.2775 ND<2.4 OK (3/14/2007 a) ND<3.28 OK (7/11/2006 a) (2.4 - 3.28)/(9 - 6) -0.293333 ND<3.83 OK (6/12/2007 a) ND<3.28 OK (7/11/2006 a) (3.83 - 3.28)/(10 - 6) 0.1375 ND<3.835 OK (1/3/2007 ~) ND<3.36 OK (10/4/2006 a) (3.835 - 3.36)/(8 - 7) 0.475 ND<2.4 OK (3/14/2007 a) ND<3.36 OK (10/4/2006 a) (2.4 - 3.36)/(9 - 7) -0.48 Page 1

ND<3.83 OK (6/12/2007 a) ND<3.36 OK (10/4/2006 a) (3.83 - 3.36)/(10 - 7) 0.156667 ND<2.4 OK (3/14/2007 a) ND<3.835 OK (1/3/2007 ~) (2.4 - 3.835)/(9 - 8) -1.435 ND<3.83 OK (6/12/2007 a) ND<3.835 OK (1/3/2007 ~) (3.83 - 3.835)/(10 - 8) -0.0025 ND<3.83 OK (6/12/2007 a) ND<2.4 OK (3/14/2007 a) (3.83 - 2.4)/(10 - 9) 1.43 Number of Q values = 45 Ordered Q Values n Q 1 -1.435 2 -0.84 3 -0.48 4 -0.43 5 -0.38 6 -0.293333 7 -0.25 8 -0.185 9 -0.163333 10 -0.0966667 11 -0.095 12 -0.058 13 -0.0333333 14 -0.0242857

. 15 16 17

-0.005

-0.0025 0.00125 18 0.03 19 0.04625 20 0.0642857 21 0.08 22 0.091 23, 0.1375 24 0.156667 25 0.1575 26 0.158 27 0.16 28 0.161667 29 0.1775 30 0.178 31 0.18 32 0.206429 33 0.210833 34 0.27 35 0.2775 36 0.37 37 0.42 38 0.4325 39 0.47 40 0.475 41 0.495 42 0.516667 43 0.54 44 0.81 45 1.43 Page 2

Sen's Estimator (Median Q) is 0.1375 Time Period Observations 1/10/2006 1 2/13/2006 1 3/20/2006 1 4/19/2006 1 5/12/2006 1 7/11/2006 1 10/4/2006 1 1/3/2007 1 3/14/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a =2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0333333 = Q(13)

Upper limit is 0.210833 = Q(33)

-0.0333333 < 0 < 0.210833 indicating no trend in data.

Page 3

Cs-1 37

-J 0

C 0

C 0)

C-,

C 0

0 o

(D (.0 0 (D 0 CD 0 0 t-0 I.-

0 t-0 o 0 0 -0 0 0 0 0 C-fl CO 0x C~l ON- 4 SC) peC) CDD Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW1 18A-3 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<2.52 U (2/6/2006 a) ND<2 U (1/15/2006 a) (2.52- 2)/(2 - 1) 0.52 ND<3.33 U (2/9/2006 a) ND<2 U (1/15/2006 a) (3.33 - 2)/(3 - 1) 0.665 ND<3.6 U (3/20/2006 a) ND<2 U (1/15/2006 a) (3.6- 2)/(4 - 1) 0.533333 ND<3.81 U (4/19/2006 a) ND<2 U (1/15/2006 a) (3.81 - 2)/(5 - 1) 0.4525 ND<4.42 OK (5/19/2006 a) ND<2 U (1/15/2006 a) (4.42- 2)/(6 - 1) 0.484 ND<3.44 OK (7/10/2006 a) ND<2 U (1/15/2006 a) (3.44 - 2)/(7 - 1) 0.24 ND<3.86 OK (10/10/2006 a) ND<2 U (1/15/2006 a) (3.86 - 2)/(8 - 1) 0.265714 ND<2.87 OK (10/24/2006 a) ND<2 U (1/15/2006 a) (2.87 - 2)/(9 - 1) 0.10875 ND<4.3 OK (1/2/2007 a) ND<2 U (1/15/2006 a) (4.3- 2)/(10- 1) 0.255556 ND<4.62 OK (3/20/2007 a) ND<2 U (1/15/2006 a) (4.62- 2)/(11 - 1) 0.262 ND<3.14 OK (4/9/2007 a) ND<2 U (1/15/2006 a) (3.14 - 2)/(12 - 1) 0.103636 ND<3.81 OK (6/13/2007 ~) ND<2 U (1/15/2006 a) (3.81 - 2)/(13 - 1) 0.150833 ND<3.33 U (2/9/2006 a) ND<2.52 U (2/6/2006 a) (3.33 - 2.52)/(3 - 2) 0.81 ND<3.6 U (3/20/2006 a) ND<2.52 U (2/6/2006 a) (3.6 - 2.52)/(4 - 2) 0.54 ND<3.81 U (4/19/2006 a) ND<2.52 U (2/6/2006 a) (3.81 - 2.52)/(5 - 2) 0.43 ND<4.42 OK (5/19/2006 a) ND<2.52 U (2/6/2006 a) (4.42 - 2.52)/(6 - 2) 0.475 ND<3.44 OK (7/10/2006 a) ND<2.52 U (2/6/2006 a) (3.44 - 2.52)/(7 - 2) 0.184 ND<3,86 OK (10/10/2006 a) ND<2.52 U (2/6/2006 a) (3.86 - 2.52)/(8 - 2) 0.223333 ND<2.87 OK (10/24/2006 a) ND<2.52 U (2/6/2006 a) (2.87 - 2.52)/(9 - 2), 0.05 ND<4.3 OK (1/2/2007 a) ND<2.52 U (2/6/2006 a) (4.3 - 2.52)/(10 - 2) 0.2225 ND<4.62 OK (3/20/2007 a) ND<2.52 U (2/6/2006 a) (4.62 - 2.52)/(11 - 2) 0.233333 ND<3.14 OK (4/9/2007 a) ND<2.52 U (2/6/2006 a) (3.14 - 2.52)/(12- 2) .0.062 ND<3.81 OK (6/13/2007 ~) ND<2.52 U (2/6/2006 a) (3.81 - 2.52)/(13 - 2) 0.117273 ND<3.6 U (3/20/2006 a) ND<3.33 U (2/9/2006 a) (3.6 - 3.33)/(4 - 3) 0.27 ND<3.81 U (4/19/2006 a) ND<3.33 U (2/9/2006 a) (3.81 - 3.33)/(5 - 3) 0.24 ND<4.42 OK (5/19/2006 a) ND<3.33 U (2/9/2006 a) (4.42 - 3.33)/(6 - 3) 0.363333 ND<3.44 OK (7/10/2006 a) ND<3.33 U (2/9/2006 a) (3.44 - 3.33)/(7 - 3) 0.0275 ND<3.86 OK (10/10/2006 a) ND<3.33 U (2/9/2006 a) (3.86 - 3.33)/(8 - 3) 0.106 ND<2.87 OK (10/24/2006 a) ND<3.33 U (2/9/2006 a) (2.87 - 3.33)/(9 - 3) -0.0766667 ND<4.3 OK (1/2/2007 a) ND<3.33 U (2/9/2006 a) (4.3 - 3.33)/(10- 3) 0.138571 ND<4.62 OK (3/20/2007 a) ND<3.33 U (2/9/2006 a) (4.62 - 3.33)/(11 7 3) 0.16125 ND<3.14 OK (4/9/2007 a) ND<3.33 U (2/9/2006 a) (3.14 - 3.33)/(12 - 3) -0.0211111 ND<3.81 OK (6/13/2007 -) ND<3.33 U (2/9/2006 a) (3.81 - 3.33)/(13- 3) 0.048 ND<3.81 U (4/19/2006 a) ND<3.6 U (3/20/2006 a) (3.81 - 3.6)/(5 - 4) 0.21 ND<4.42 OK (5/19/2006 a) ND<3.6 U (3/20/2006 a) (4.42 - 3.6)/(6 - 4) 0.41 ND<3.44 OK (7/10/2006 a) ND<3.6 U (3/20/2006 a) (3.44 - 3.6)/(7 - 4) -0.0533333 ND<3.86 OK (10/10/2006 a) ND<3.6 U (3/20/2006 a) (3.86 - 3.6)/(8 - 4) 0.065 ND<2.87 OK (10/24/2006 a) ND<3.6 U (3/20/2006 a) (2.87 - 3.6)/(9 - 4) -0.146 ND<4.3 OK (1/2/2007 a) ND<3.6 U (3/20/2006 a) (4.3 - 3.6)/(10 - 4) 0.116667 ND<4.62 OK (3/20/2007 a) ND<3.6 U (3/20/2006 a) (4.62 - 3.6)/(11 - 4) 0.145714

. ND<3.14 OK (4/9/2007 a)

ND<3.81 OK (6/13/2007 ~)

ND<3.6 ND<3.6 U (3/20/2006 U (3/20/2006 a) a)

(3.14 - 3.6)/(12 - 4)

(3.81 - 3.6)/(13- 4)

-0.0575 0.0233333 ND<4.42 OK (5/19/2006 a) ND<3.81 U (4/19/2006 a) (4.42 - 3.81)/(6 - 5) 0.61 Page 1

ND<3.81 U (4/19/2006 a) (3.44- 3.81)/(7 - 5) ,-0.185 O ND<3.44 ND<3.86 OK (7/10/2006 (10/10/2006a)a) ND<3.81 U (4/19/2006 a) (3.86- 3.81)/(8 - 5) 0.0166667 ND<2.87 OK (10/24/2006 a) ND<3.81 U (4/19/2006 a) (2.87- 3.81)/(9 - 5) -0.235 ND<4.3 OK (1/2/2007 a) ND<3.81 U (4/19/2006 a) (4.3- 3.81)/(10 - 5) 0.098 ND<4.62 OK (3/20/2007 a) ND<3.81 U (4/19/2006 a) (4.62 - 3.81)/(11 - 5) 0.135 ND<3.14 OK (4/9/2007 a) ND<3.81 U (4/19/2006 a) (3.14- 3.81)/(12 - 5) -0.0957143 ND<3.81 OK (6/13/2007 ~) ND<3.81 U (4/19/2006 a) (3.81 - 3.81)/(13 - 5) 0 ND<3.44 OK (7/10/2006 a) ND<4.42 OK (5/19/2006 a) (3.44 - 4.42)/(7 - 6) -0.98 ND<3.86 OK (10/10/2006 a) ND<4.42 OK (5/19/2006 a) (3.86 - 4.42)/(8 - 6) -0.28 ND<2.87 OK (10/24/2006 a) ND<4.42 OK (5/19/2006 a) (2.87 - 4.42)/(9 - 6) -0.516667 ND<4.3 OK (1/2/2007 a) ND<4.42 OK (5/19/2006 a) (4.3 - 4.42)/(10 - 6) -0.03 ND<4.62 OK (3/20/2007 a) ND<4.42 OK (5/19/2006 a) (4.62 - 4.42)/(11 - 6) 0.04 ND<3.14 OK (4/9/2007 a) ND<4.42 OK (5/19/2006 a) (3.14- 4.42)/(12- 6) -0.213333 ND<3.81 OK (6/13/2007 -) ND<4.42 OK (5/19/2006 a) (3.81 - 4.42)/(13 - 6) -0.0871429 ND<3.86 OK (10/10/2006 a) ND<3.44 OK (7/10/2006 a) (3.86 - 3.44)/(8 - 7) 0.42 ND<2.87 OK (10/24/2006 a) ND<3.44 OK (7/10/2006 a) (2.87 - 3.44)/(9 - 7) -0.285 ND<4.3 OK (1/2/2007 a) ND<3.44 OK (7/10/2006 a) (4.3 - 3.44)/(10 - 7) 0.286667 ND<4.62 OK (3/20/2007 a) ND<3.44 OK (7/10/2006 a) (4.62 - 3.44)/(11 - 7) 0.295 ND<3.14 OK (4/9/2007 a) ND<3.44 OK (7/10/2006 a) (3.14- 3.44)/(12- 7) -0.06 ND<3.81 OK (6/13/2007 -) ND<3.44 OK (7/10/2006 a) (3.81 - 3.44)/(13 - 7) 0.0616667 ND<2.87 OK (10/24/2006 a) ND<3.86 OK (10/10/2006 a) (2.87 - 3.86)/(9 - 8) -0.99 ND<4.3 OK (1/2/2007 a) ND<3.86 OK (10/10/2006 a) (4.3 - 3.86)/(10 - 8) 0.22 ND<4.62 OK (3/20/2007 a) ND<3.86 OK (10/10/2006 a) (4.62 - 3.86)/(11 - 8) 0.253333 ND<3.14 OK (4/9/2007 a) ND<3.86 OK (10/10/2006 a) (3.14 - 3.86)/(12 - 8) -0.18

ND<3.81 OK (6/13/2007 ~) ND<3.86 OK (10/10/2006 a) (3.81 - 3.86)/(13- 8) -0.01 ND<4.3 OK (1/2/2007 a) ND<2.87 OK (10/24/2006 a) (4.3 - 2.87)/(10 - 9) 1.43 ND<4.62 OK (3/20/2007 a) ND<2.87 OK (10/24/2006 a) (4.62 - 2.87)/(11 - 9) 0.875 ND<3.14 OK (4/9/2007 a) ND<2.87 OK (10/24/2006 a) (3.14- 2.87)/(12- 9) 0.09 ND<3.81 OK (6/13/2007 -) ND<2.87 OK (10/24/2006 a) (3.81 - 2.87)/(13 - 9) 0.235 ND<4.62 OK (3/20/2007 a) ND<4.3 OK (1/2/2007 a) (4.62 - 4.3)/(11 - 10) 0.32 ND<3.14 OK (4/9/2007 a) ND<4.3 OK (1/2/2007 a) (3.14- 4.3)/(12 - 10) -0.58 ND<3.81 OK (6/13/2007 ~) ND<4.3 OK (1/2/2007 a) (3.81 - 4.3)/(13 - 10) -0.163333 ND<3.14 OK (4/9/2007 a)

ND<4.62 OK (3/20/2007 a) (3.14 - 4.62)/(12 - 11) -1.48 ND<3.81 OK (6/13/2007 ~) ND<4.62 OK (3/20/2007 a) (3.81 - 4.62)/(13- 11) -0.405 ND<3.81 OK (6/13/2007 ~) ND<3.14 OK (4/9/2007 a) (3.81 - 3.14)/(13 - 12) 0.67 Number of Q values = 78 Ordered Q Values n Q 1 -1.48 2 -0.99 3 -0.98 4 -0.58 5 -0.516667 6 -0.405 7 -0.285 8 -0.28 9 -0.235 Page 2

11 10 -0.185

-0.213333 12 -0.18 13 -0.163333 14 -0.146 15 -0.0957143 16 -0.0871429 17 -0.0766667 18 -0.06 19 -0.0575 20 -0.0533333 21 -0.03 22 -0.0211111 23 -0.01 24 0 25 0.0166667 26 0.0233333 27 0.0275 28 0.04 29 0.048 30 0.05 31 0.0616667 32 0.062 33 0.065 34 0.09 35 0.098 36 0.103636 37 0.106 38 0.10875 39 0.116667 40 0.117273 41 0.135 42 0.138571 43 0.145714 44 0.150833 45 0.16125 46 0.184 47 0.21 48 0.22 49 0.2225 50 0.223333 51 0.233333 52 0.235 53 0.24 54 0.24 55 0.253333 56 0.255556 57 0.262 58 0.265714 59 0.27 60 0.286667 61 0.295 62 0.32 63 0.363333 64 0.41 65 0.42 66 0.43 Page 3

. 68 67 69 0.475 0.4525 0.484 70 0.52 71 0.533333 72 0.54 73 0.61 74 0.665 75 0.67 76 0.81 77 0.875 78 1.43 Sen's Estimator (Median Q) is 0.11697 Tied Group Value Members 1 3.81 2 Time Period Observations 1/15/2006 1 2/6/2006 1 2/9/2006 1 3/20/2006 1 4/19/2006 1 5/19/2006 1 7/10/2006 1 10/10/2006 1

. 10/24/2006 1/2/2007 3/20/2007 1

1 1

4/9/2007 1 6/13/2007 1 There are 0 time periods with multiple data A =18 B=0 C=0 D=0 E=2 F=0 a = 4836 b = 15444 c = 312 Group Variance = 267.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 26.9107 M1 = (78 - 26.9107)/2.0 = 25.5447 M2 = (78 + 26.9107)/2.0 + 1 = 53.4553 Lower limit is 0.0233333 = Q(26)

Upper limit is 0.24 = Q(53) 0.0233333 > 0 indicating an upward trend in data.

Page 4

Cs-1 37 Time-Series Graph of MWII8A-4 4

0 CD

-)

c o 2 0C I I C0 (0 (0 CD r-00 I,-

oý 0o 0 CD C, C~) C C, Sp CDa Ce Sample Date Page 1

.Sen's Slope Analysis Parameter: Cs-137 Location: MW1 18A-4 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.74 U (2/9/2006 a) 3.12 U (1/11/2006 ~ (3.74 - 3.12)/(2 - 1) 0.62 ND<4.2 U (3/18/2006 a) 3.12 U (1/11/2006 ~ (4.2 - 3.12)/(3 - 1) 0.54 ND<4.035 U (4/19/2006 ~) 3.12 U (1/11/2006 ~ (4.035 - 3.12)/(4 - 1) 0.305 ND<2.98 OK (5/19/2006 a) 3.12 U (1/11/2006 ) (2.98- 3.12)/(5 - 1) -0.035 ND<3.86 OK (7/8/2006 a) 3.12 U (1/11/2006 ~ (3.86- 3.12)/(6 - 1) 0.148 ND<3.13 OK (10/10/2006 a) 3.12 U (1/11/2006 ~ (3.13- 3.12)/(7- 1) 0.00166667 ND<3.19 OK (1/6/2007 a) 3.12 U (1/11/2006 ~ (3.19- 3.12)/(8- 1) 0.01 ND<3.53 OK (1/8/2007 a) 3.12 U (1/11/2006 ~ (3.53- 3.12)/(9 - 1) 0.05125 ND<3.81 OK (3/19/2007 a) 3.12 U (1/11/2006 ~ (3.81 - 3.12)/(10- 1) 0.0766667 ND<4.35 OK (4/10/2007 a) 3.12 U (1/11/2006 ~ (4.35- 3.12)/(11 - 1) 0.123 ND<3.27 OK (6/13/2007 a) 3.12 U (1/11/2006 ~ (3.27- 3.12)/(12- 1) 0.0136364 ND<4.2 U (3/18/2006 a) ND<3.74 U (2/9/2006 a) (4.2 - 3.74)/(3 - 2) 0.46 ND<4.035 U (4/19/2006 ~) ND<3.74 U (2/9/2006 a) (4.035 - 3.74)/(4 - 2) 0.1475 ND<2.98 OK (5/19/2006 a) ND<3.74 U (2/9/2006 a) (2.98 - 3.74)/(5 - 2) -0.253333 ND<3.86 OK (7/8/2006 a) ND<3.74 U (2/9/2006 a) (3.86 - 3.74)/(6 - 2) 0.03

. N D<3.13 OK (10/10/2006 a)

ND<3.19 OK (1/6/2007 a)

ND<3.53 OK (1/8/2007 a)

ND<3.74 ND<3.74 ND<3.74 U (2/9/2006 U (2/9/2006 U (2/9/2006 a) a)

a)

(3.13 - 3.74)/(7 - 2)

(3.19-(3.53 -

3.74)/(8- 2) 3.74)/(9 - 2)

-0.122

-0.0916667

-0.03 ND<3.81 OK (3/19/2007 a) ND<3.74 U (2/9/2006 a) (3.81 - 3.74)/(10 - 2) 0.00875 ND<4.35 OK (4/10/2007 a) ND<3.74 U (2/9/2006 a) (4.35 - 3.74)/(11 - 2) 0.0677778 ND<3.27 OK (6/13/2007 a) ND<3.74 U (2/9/2006 a) (3.27 - 3.74)/(12 - 2) -0.047 ND<4.035 U (4/19/2006 -) ND<4.2 U (3/18/2006 a) (4.035 - 4.2)/(4 - 3) -0.165 ND<2.98 OK (5/19/2006 a) ND<4.2 U (3/18/2006 a) (2.98 - 4.2)/(5 - 3) -0.61 ND<3.86 OK (7/8/2006 a) ND<4.2 U (3/18/2006 a) (3.86 - 4.2)/(6 - 3) -0.113333 ND<3.13 OK (10/10/2006 a) ND<4.2 U (3/18/2006 a) (3.13- 4.2)/(7 - 3) -0.2675 ND<3.19 OK (1/6/2007 a) ND<4.2 U (3/18/2006 a) (3.19- 4.2)/(8- 3) -0.202 ND<3.53 OK (1/8/2007 a) ND<4.2 U (3/18/2006 a) (3.53 - 4.2)/(9 - 3) -0.111667 ND<3.81 OK (3/19/2007 a) ND<4.2 U (3/18/2006 a) (3.81 - 4.2)/(10 - 3) -0.0557143 ND<4.35 OK (4/10/2007 a) ND<4.2 U (3/18/2006 a) (4.35 - 4.2)/(11 - 3) 0.01875 ND<3.27 OK (6/13/2007 a) ND<4.2 U (3/18/2006 a) (3.27 - 4.2)/(12- 3) -0.103333 ND<2.98 OK (5/19/2006 a) ND<4.035 U (4/19/2006 ~) (2.98 - 4.035)/(5 - 4) -1.055 ND<3.86 OK (7/8/2006 a) ND<4.035 U (4/19/2006 -) (3.86 - 4.035)/(6 - 4) -0.0875 ND<3.13 OK (110/10/2006 a) ND<4.035 U (4/19/2006 ~) (3.13 - 4.035)/(7- 4) -0.301667 ND<3.19 OK (1/6/2007 a) ND<4.035 U (4/19/2006 ~) (3.19- 4.035)/(8- 4) -0.21125 ND<3.53 OK (1/8/2007 a) ND<4.035 U (4/19/2006 ~) (3.53 - 4.035)/(9 - 4) -0.101 ND<3.81 OK (3/19/2007 a) ND<4.035 U (4/19/2006 ~) (3.81 - 4.035)/(10- 4) -0.0375 ND<4.35 OK (4/10/2007 a) ND<4.035 U (4/19/2006 ~) (4.35 - 4.035)/(11 - 4) 0.045 ND<3.27 OK (6/13/2007 a) ND<4.035 U (4/19/2006 ~) (3.27 - 4.035)/(12 - 4) -0.095625 ND<3.86 OK (7/8/2006 a) ND<2.98 OK (5/19/2006 a) (3.86 - 2.98)/(6 - 5) 0.88

. ND<3.13 ND<3.19 ND<3.53 OK OK OK (10/10/2006 a)

(1/6/2007 a)

(1/8/2007 a)

ND<2.98 ND<2.98 ND<2.98 OK OK OK (5/19/2006 (5/19/2006 (5/19/2006 a) a)

a)

(3.13 -

(3.19-(3.53 -

2.98)/(7 - 5) 2.98)/(8 - 5) 2.98)/(9 - 5) 0.075 0.07 0.1375 ND<3.81 OK (3/19/2007 a) ND<2.98 OK (5/19/2006 a) (3.81 - 2.98)/(10- 5) 0.166 Page 1

.ND<4.35 ND<3.27 OK OK (6/13/2007 (4/10/2007 a) a)

ND<2.98 OK (5/19/2006 a)

(4.35 - 2.98)/(11 - 5)

(3.27- 2.98)/(12- 5) 0.228333 0.0414286 ND<3.13 OK (10/10/2006 a) ND<3.86 OK (7/8/2006 a) (3.13- 3.86)/(7 - 6) -0.73 ND<3.19 OK (1/6/2007 a) ND<3.86 OK (7/8/2006 a) (3.19- 3.86)/(8 - 6) -0.335 ND<3.53 OK (1/8/2007 a) ND<3.86 OK (7/8/2006 a) (3.53 - 3.86)/(9 - 6) -0.11 ND<3.81 OK (3/19/2007 a) ND<3.86 OK (7/8/2006 a) (3.81 - 3.86)/(10 - 6) -0.0125 ND<4.35 OK (4/10/2007 a) ND<3.86 OK (7/8/2006 a) (4.35 - 3.86)/(11 - 6) 0.098 ND<3.27 OK (6/13/2007 a) ND<3.86 OK (7/8/2006 a) (3.27 - 3.86)/(12 - 6) -0.0983333 ND<3.19 OK (1/6/2007 a) N D<3.13 OK (10/10/2006 a) (3.19 - 3.13)/(8 - 7) 0.06 ND<3.53 OK (1/8/2007 a) ND<3.13 OK (10/10/2006 a) (3.53 - 3.13)/(9 - 7) 0.2 ND<3.81 OK (3/19/2007 a) N D<3.13 OK (10/10/2006 a) (3.81 - 3.13)/(10- 7) 0.226667 ND<4.35 OK (4/10/2007 a) N D<3.13 OK (10/10/2006 a) (4.35 - 3.13)/(11 - 7) 0.305 ND<3.27 OK (6/13/2007 a) N D<3.13 OK (10/10/2006 a) (3.27- 3.13)/(12- 7) 0.028 ND<3.53 OK (1/8/2007 a) ND<3.19 OK (1/6/2007 a) (3.53- 3.19)/(9 - 8) 0.34 ND<3.81 OK (3/19/2007 a) ND<3.19 OK (1/6/2007 a) (3.81 - 3.19)/(10- 8) 0.31 ND<4.35 OK (4/10/2007 a) ND<3.19 OK (1/6/2007 a) (4.35 - 3.19)/(11 - 8) 0.386667 ND<3.27 OK (6/13/2007 a) ND<3.19 OK (1/6/2007 a) (3.27 - 3.19)/(12 - 8) 0.02 ND<3.81 OK (3/19/2007 a) ND<3.53 OK (1/8/2007 a) (3.81 - 3.53)/(10 - 9) 0.28 ND<4.35 OK (4/10/2007 a) ND<3.53 OK (1/8/2007 a) (4.35 - 3.53)/(11 - 9) 0.41 ND<3.27 OK (6/13/2007 a) ND<3.53 OK (1/8/2007 a) (3.27 - 3.53)/(12 - 9) -0.0866667 ND<3.81 OK (3/19/2007 a)

ND<4.35 OK (4/10/2007 a) (4.35 - 3.81)/(11 - 10) 0.54 ND<3.27 OK (6/13/2007 a) ND<3.81 OK (3/19/2007 a) (3.27- 3.81)/(12 - 10) -0.27

ND<3.27 OK (6/13/2007 a) ND<4.35 OK (4/10/2007 a) (3.27 - 4.35)/(12 - 11) -1.08 Number of 0 values = 66 Ordered Q Values n Q

-1.08 2 -1.055 3 -0.73 4 -0.61 5 -0.335 6 -0.301667 7 -0.27 8 -0.2675 9 -0.253333 10 -0.21125 11 -0.202 12 -0.165 13 -0.122 14 -0.113333 15 -0.111667 16 -0.11 17 -0.103333 18 -0.101

. 19 20 21

-0.0983333

-0.095625

-0.0916667 22 -0.0875 Page 2

24 23 -0.0557143

-0.0866667 25 -0.047 26 -0.0375 27 -0.035 28 -0.03 29 -0.0125 30 0.00166667 31 0.00875 32 0.01 33 0.0136364 34 0.01875 35 0.02 36 0.028 37 0.03 38 0.0414286 39 0.045 40 0.05125 41 0.06 42 0.0677778 43 0.07 44 0.075 45 0.0766667 46 0.098 47 0.123 48 0.1375 49 0.1475 50 0.148 51 0.166 52 0.2 53 0.226667 54 0.228333 55 0.28 56 0.305 57 0.305 58 0.31 59 0.34 60 0.386667 61 0.41 62 0.46 63 0.54 64 0.54 65 0.62 66 0.88 Sen's Estimator (Median Q) is 0.0161932 Time Period Observations 1/11/2006 1 2/9/2006 1 3/18/2006 1 4/19/2006 1 5/19/2006 1 7/8/2006 1 10/10/2006 1 1/6/2007 1 1/8/2007 1 3/19/2007 1 Page 3

O 4/10/2007 6/13/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 3828 b = 11880 c = 264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is -0.0916667 = Q(21)

Upper limit is 0.098 = Q(46)

-0.0916667 < 0 < 0.098 indicating no trend in data.

Page 4

Cs-1 37 Time-Series Graph of MWII8A-5 II C

21 0

CC o2

,0 S0 p0 D 0a o 0 0 0 0 0 0 0 Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW1 18A-5 Original Data (Not Transformed)

Non-Detects Replaced wvith Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<2.18 U (2/13/2006 a) ND<4 U (1/11/2006 a) (2.18- 4)/(2 - 1) -1.82 ND<3.68 U (3/20/2006 a) ND<4 U (1/11/2006 a) (3.68 - 4)/(3 - 1) -0.16 ND<3.47 U (4/19/2006 a) ND<4 U (1/11/2006 a) (3.47 - 4)/(4 - 1) -0.176667 ND<4.04 OK (5/19/2006 a) ND<4 U (1/11/2006 a) (4.04 - 4)/(5 - 1) 0.01 ND<4.55 OK (7/18/2006 a) ND<4 U (1/11/2006 a) (4.55 - 4)/(6 - 1) 0.11 ND<3.91 OK (10/19/2006 a) ND<4 U (1/11/2006 a) (3.91 - 4)/(7 - 1) -0.015 ND<4.04 OK (11/15/2006 a) ND<4 U (1/11/2006 a) (4.04 - 4)/(8- 1) 0.00571429 ND<3.43 OK (1/8/2007 a) ND<4 U (1/11/2006 a) (3.43 - 4)/(9 - 1) -0.07125 ND<4.41 OK (3/19/2007 a) ND<4 U (1/11/2006 a) (4.41 - 4)/(10 - 1) 0.0455556 ND<3.84 OK (4/10/2007 a) ND<4 U (1/11/2006 a) (3.84 - 4)/(11 - 1) -0.016 ND<4.58 OK (6/13/2007 a) ND<4 U (1/11/2006 a) (4.58- 4)/(12 - 1) .0.0527273 ND<3.68 U (3/20/2006 a) ND<2.18 U (2/13/2006 a) (3.68 -. 2.18)/(3 - 2) 1.5 ND<3.47 U (4/19/2006 a) ND<2.18 U (2/13/2006 a) (3.47 - 2.18)/(4- 2) 0.645 ND<4.04 OK (5/19/2006 a) ND<2.18 U (2/13/2006 a) (4.04 - 2.18)/(5 - 2) 0.62 ND<4.55 OK (7/18/2006 a) ND<2.18 U (2/13/2006 a) (4.55 - 2.18)/(6 - 2) 0.5925

. ND<3.91 ND<4.04 ND<3.43 OK (10/19/2006 a)

OK (11/15/2006 a)

OK (1/8/2007 a)

ND<2.18 ND<2.18 ND<2.18 U (2/13/2006 U (2/13/2006 U (2/13/2006 a) a)

a)

(3.91 - 2.18)/(7 - 2)

(4.04 - 2.18)/(8 - 2)

(3.43 - 2.18)/(9 - 2) 0.346 0.31 0.178571 ND<4.41 OK (3/19/2007 a) ND<2.,18 U (2/13/2006 a) (4.41 - 2.18)/(10- 2) 0.27875 ND<3.84 OK (4/10/2007 a) ND<2.18 U (2/13/2006 a) (3.84- 2.18)/(11 - 2) 0.184444 ND<4.58 OK (6/13/2007 a) ND<2.18 U (2/13/2006 a) (4.58- 2.18)/(12- 2) 0.24 ND<3.47 U (4/19/2006 a) ND<3.68 U (3/20/2006 a) (3.47 - 3.68)/(4 - 3) -0.21 ND<4.04 OK (5/19/2006 a) ND<3.68 U (3/20/2006 a) (4.04 - 3.68)/(5 - 3) 0.18 ND<4.55 OK (7/18/2006 a) ND<3.68 U (3/20/2006 a) (4.55 - 3.68)/(6 - 3) 0.29 ND<3.91 OK (10/19/2006 a) ND<3.68 U (3/20/2006 a) (3.91 - 3.68)/(7 - 3) 0;0575 ND<4.04 OK (11/15/2006 a) ND<3.68 U (3/20/2006 a) (4.04 - 3.68)/(8 - 3) 0.072 ND<3.43 OK (1/8/2007 a) ND<3.68 U (3/20/2006 a) (3.43 - 3.68)/(9 - 3) -0.0416667 ND<4.41 OK (3/19/2007 a) ND<3.68 U (3/20/2006 a) (4.41 - 3.68)/(10 - 3) 0.104286 ND<3.84 OK (4/10/2007 a) ND<3.68 U.(3/20/2006 a) (3.84 - 3.68)/(11 - 3) 0.02 ND<4.58 OK (6/13/2007 a) ND<3.68 U (3/20/2006 a) (4.58 - 3.68)/(12 - 3) 0.1 ND<4.04 OK (5/19/2006 a) ND<3.47 U (4/19/2006 a) (4.04 - 3.47)/(5 - 4) 0.57 ND<4.55 OK (7/18/2006 a) ND<3.47 U (4/19/2006a) (4.55 - 3.47)/(6 - 4) 0.54 ND<3.91 OK (10/19/2006 a) ND<3.47 U (4/19/2006 a) (3.91 - 3.47)/(7 - 4) 0.146667 ND<4.04 OK (11/15/2006 a) ND<3.47 U (4/19/2006 a) (4.04 - 3.47)/(8 - 4) 0.1425.

ND<3.43 OK (1/8/2007 a) ND<3.47 U (4/19/2006 a) (3.43 - 3.47)/(9 - 4) -0.008 ND<4.41 OK (3/19/2007 a) ND<3.47 U (4/19/2006 a) (4.41 - 3.47)/(10- 4) 0.156667 ND<3.84 OK (4/10/2007 a) ND<3.47 U (4/19/2006 a) (3.84 - 3.47)/(11 - 4) 0.0528571 ND<4.58 OK (6/13/2007 a) ND<3.47 U (4/19/2006 a) (4.58- 3.47)/(12- 4) 0.13875 ND<4.55 OK (7/18/2006 a) ND<4.04 OK (5/19/2006 a) (4.55 - 4.04)/(6 - 5) 0.51

. ND<3.91 ND<4.04 ND<3.43 OK OK OK (10/19/2006 a)

(11/15/2006 a)

(1/8/2007 a)

ND<4.04 ND<4.04 ND<4.04 OK OK OK (5/19/2006 (5/19/2006 (5/19/2006 a) a)

a)

(3.91 (4.04 (3.43

- 4.04)/(7 - 5)

- 4.04)/(8 - 5)

- 4.04)/(9 - 5)

-0.065 0

-0.1525 ND<4.41 OK (3/19/2007 a) ND<4.04 OK (5/19/2006 a) (4.41 - 4.04)/(10 - 5) 0.074 Page 1

. ND<4.58 ND<3.84 OK OK (6/13/2007 (4/10/2007 a) a)

ND<4.04 OK (5/19/2006 a)

(3.84 - 4.04)/(11 - 5)

(4.58 - 4.04)/(12 - 5)

-0.0333333 0.0771429 ND<3.91 OK (10/19/2006 a) ND<4.55 OK (7/18/2006 a) (3.91 - 4.55)/(7 - 6) -0.64 ND<4.04 OK (11/15/2006 a) ND<4.55 OK (7/18/2006 a) (4.04 - 4.55)/(8 - 6) -0.255 ND<3.43 OK (1/8/2007 a) ND<4.55 OK (7/18/2006 a) (3.43 - 4.55)/(9 - 6) -0.373333 ND<4.41 OK (3/19/2007 a) ND<4.55 OK (7/18/2006 a) (4.41 - 4.55)/(10- 6) -0.035 ND<3.84 OK (4/10/2007 a) ND<4.55 OK (7/18/2006 a) (3.84 - 4.55)/(11 - 6) -0.142 ND<4.58 OK (6/13/2007 a) ND<4.55 OK (7/18/2006 a) (4.58- 4.55)/(12- 6) 0.005 ND<4.04 OK (11/15/2006 a) ND<3.91 OK (10/19/2006 a) (4.04- 3.91)/(8 - 7) 0.13 ND<3.43 OK (1/8/2007 a) ND<3.91 OK (10/19/2006 a) (3.43 - 3.91)/(9 - 7) -0.24 ND<4.41 OK (3/19/2007 a) ND<3.91 OK (10/19/2006 a) (4.41 - 3.91)/(10 - 7). 0.166667 ND<3.84 OK (4/10/2007 a) ND<3.91 OK (10/19/2006 a) (3.84- 3.91)/(11 - 7) -0.0175 ND<4.58 OK (6/13/2007 a) ND<3.91 OK (10/19/2006 a) (4.58- 3.91)/(12 - 7) 0.134 ND<3.43 OK (1/8/2007 a) ND<4.04 OK (11/15/2006 a) (3.43 - 4.04)/(9 - 8) -0.61 ND<4.41 OK (3/19/2007 a) ND<4.04 OK (11/15/2006 a) (4.41 - 4.04)/(10 - 8) 0.185 ND<3.84 OK (4/10/2007 a) ND<4.04 OK (11/15/2006 a) (3.84 - 4.04)/(11 - 8) -0.0666667 ND<4.58 OK (6/13/2007 a) ND<4.04 OK (11/15/2006 a) (4.58- 4.04)/(12 - 8) 0.135 ND<4.41 OK (3/19/2007 a) ND<3.43 OK (1/8/2007 a) (4.41 - 3.43)/(10 - 9) 0.98 ND<3.84 OK (4/10/2007 a) ND<3.43 OK (1/8/2007 a) (3.84 - 3.43)/(11 - 9) 0.205 ND<4.58 OK (6/13/2007 a) ND<3.43 OK (1/8/2007 a) (4.58 - 3.43)/(12 - 9) 0.383333 ND<3.84 OK (4/10/2007 a) ND<4.41 OK (3/19/2007 a) (3.84- 4.41)/(11 - 10) -0.57 ND<4.58 OK (6/13/2007 a) ND<4.41 OK (3/19/2007 a) (4.58- 4.41)/(12 - 10) 0.085 BND<4.58 OK (6/13/2007 a) ND<3.84 OK (4/10/2007 a) (4.58 - 3.84)/(12 - 11) 0.74 Number of Q values = 66 Ordered o Values n 0 1 -1.82 2 -0.64 3 -0.61 4 -0.57 5 -0.373333 6 -0.255 7 -0:24 8 -0.21 9 -0.176667 10 -0.16 11 -0.1525 12 -0.142 13 -0.07125 14 -0.0666667 15 -0.065 16 -0.0416667 17 -0.035 18 -0.0333333

. 19 20 21

-0.0175

-0.016

-0.015 22 -0.008 Page 2

. 24 23 25 0.005 0

0.00571429 26 0.01 27 0.02 28 0.0455556 29 0.0527273 30 0.0528571 31 0.0575 32, 0.072 33 0.074 34 0.0771429 35 0.085 36 0.1 37 0.104286 38 0.11 39 0.13 40 0.134 41 0.135 42 0.13875 43 0.1425 44 0.146667 45 0.156667 46 0.166667 47 0.178571 48 0.18 49 0.184444

. 50 51 0.185 0.205 52 0.24 53 0.27875 54 0.29 55 0.31 56 0.346 57 0.383333 58 0.51 59 0.54 60 0.57 61 0.5925 62 0.62 63 0.645 64 0.74 65 0.98 66 1.5 Sen's Estimator (Median Q) is 0.0755714 Tied Group Value Members 1 4.04 2 Time Period Observations 1/11/2006 1 2/13/2006 1 3/20/2006 1

. 4/19/2006 5/19/2006 7/18/2006 1

1 1

10/19/2006 1 Page 3

11/15/2006 1 1/8/2007 1 3/19/2007 1 4/10/2007 1 6/13/2007 1 There are 0 time periods with multiple data A =18 B=0 C=0 D=0 E=2 F=0 a = 3828 b =11880 c = 264 Group Variance = 211.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 23.9306 M1 = (66 - 23.9306)/2.0 = 21.0347 M2 = (66 + 23.9306)/2.0 ÷ 1 = 45.9653 Lower limit is -0.015 = Q(21)

Upper limit is 0.166667 = Q(46)

-0.015 < 0 < 0.166667 indicating no trend in data.

Page 4

Cs-1 37 Time-Series Graph of MW119-2 20 15 10 0~

0 10 5

v 0

C, (00 C0 C)N-N o 0 0 1 0 0 0 0 0 N Q a l Q N Ct wocr) (0 Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW119-2 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<5.84 U (2/24/2006 a) ND<2.42 U (1/19/2006 a) (5.84 - 2.42)/(2 - 1) 3.42 ND<3.25 U (3/17/2006 a) ND<2.42 U (1/19/2006 a) (3.25 - 2.42)/(3 - 1) 0.415 ND<3.2 U (4/19/2006 a) ND<2.42 U (1/19/2006 a) (3.2 - 2.42)/(4 - 1) 0.26 ND<4.97 OK (5/12/2006 ~) ND<2.42 U (1/19/2006 a) (4.97 - 2.42)/(5 - 1) 0.6375 ND<3.01 OK (7/16/2006 a) ND<2.42 U (1/19/2006 a) (3.01 - 2.42)/(6 - 1) 0.118 ND<3.13 OK (10/4/2006 a) ND<2.42 U (1/19/2006 a) (3.13- 2.42)/(7 - 1) 0.118333 ND<2.34 OK (1/2/2007 a) ND<2.42 U (1/19/2006 a) (2.34 - 2.42)/(8 - 1) -0.0114286 ND<3.84 OK (3/20/2007 a) ND<2.42 U (1/19/2006 a) (3.84 - 2.42)/(9 - 1) 0.1775 ND<1 1.5 OK (6/9/2007 a) ND<2.42 U (1/19/2006 a) (11.5- 2.42)/(10 - 1) 1.00889 ND<3.25 U (3/17/2006 a) ND<5.84 U (2/24/2006 a) (3.25 - 5.84)/(3 - 2) -2.59 ND<3.2 U (4/19/2006 a) ND<5.84 U (2/24/2006 a) (3.2 - 5.84)/(4 - 2) -1.32 ND<4.97 OK (5/12/2006 ~) ND<5.84 U (2/24/2006 a) (4.97 - 5.84)/(5 - 2) -0.29 ND<3.01 OK (7/16/2006 a) ND<5.84 U (2/24/2006 a) (3.01 - 5.84)/(6 - 2) -0.7075 ND<3.13 OK (10/4/2006 a) ND<5.84 U (2/24/2006 a) (3.13 - 5.84)/(7 - 2) -0.542 ND<2.34 OK (1/2/2007 a) ND<5.84 U (2/24/2006 a) (2.34 - 5.84)/(8 - 2) -0.583333 ND<3.84 OK (3/20/2007 a) ND<5.84 U (2/24/2006 a) (3.84 - 5.84)/(9 - 2) -0.285714 ND< 11.5 OK (6/9/2007 a) ND<5.84 U (2/24/2006 a) (11.5- 5.84)/(10 - 2) 0.7075 ND<3.2 U (4/19/2006 a) ND<3.25 U (3/17/2006 a) (3.2 - 3.25)/(4 - 3) -0.05 ND<4.97 OK (5/12/2006 ~) ND<3.25 U (3/17/2006 a) (4.97 - 3.25)/(5 - 3) 0.86 ND<3.01 OK (7/16/2006 a) ND<3.25 U (3/17/2006 a) (3.01 - 3.25)/(6 - 3) -0.08 ND<3.13 OK (10/4/2006 a) ND<3.25 U (3/17/2006 a) (3.13 - 3.25)/(7 - 3) -0.03 ND<2.34 OK (1/2/2007 a) ND<3.25 U (3/17/2006 a) (2.34 - 3.25)/(8 - 3) -0.182 ND<3.84 OK (3/20/2007 a) ND<3.25 U (3/17/2006 a) (3.84 - 3.25)/(9 - 3) 0.0983333 ND<1 1.5 OK (6/9/2007 a) ND<3.25 U (3/17/2006 a) (11.5 - 3.25)/(10 - 3) 1.17857 ND<4.97 OK (5/12/2006 ~) ND<3.2 U (4/19/2006 a) (4.97 - 3.2)/(5 - 4) 1.77 ND<3.01 OK (7/16/2006 a) ND<3.2 U (4/19/2006 a) (3.01 - 3.2)/(6 - 4) -0.095 ND<3.13 OK (10/4/2006 a) ND<3.2 U (4/19/2006 a) (3.13 - 3.2)/(7 - 4) -0.0233333 ND<2.34 OK (1/2/2007 a) ND<3.2 U (4/19/2006 a) (2.34 - 3.2)/(8 - 4) -0.215 ND<3.84 OK (3/20/2007 a) ND<3.2 U (4/19/2006 a) (3.84 - 3.2)/(9 - 4) 0.128 ND<1 1.5 OK (6/9/2007 a) ND<3.2 U (4/19/2006 a) (11.5 - 3.2)/(10 - 4) 1.38333 ND<3.01 OK (7/16/2006 a) ND<4.97 OK (5/12/2006 ~) (3.01 - 4.97)/(6 - 5) -1.96 ND<3.13 OK (10/4/2006 a) ND<4.97 OK (5/12/2006 ~) (3.13 - 4.97)/(7 - 5) -0.92 ND<2.34 OK (1/2/2007 a) ND<4.97 OK (5/12/2006 ~) (2.34 - 4.97)/(8 - 5) -0.876667 ND<3.84 OK (3/20/2007 a) ND<4.97 OK (5/12/2006 ~) (3.84 - 4.97)/(9 - 5) -0.2825 ND<1 1.5 OK (6/9/2007 a) ND<4.97 OK (5/12/2006 ~) (11.5 - 4.97)/(10 - 5) 1.306 ND<3.13 OK (10/4/2006 a) ND<3.01 OK (7/16/2006 a) (3.13- 3.01)/(7- 6) 0.12 ND<2.34 OK (1/2/2007 a) ND<3.01 OK (7/16/2006 a) (2.34 - 3.01)/(8 - 6) -0.335 ND<3.84 OK (3/20/2007 a) ND<3.01 OK (7/16/2006 a) (3.84 - 3.01)/(9 - 6) 0.276667 ND<1 1.5 OK (6/9/2007 a) ND<3.01 OK (7/16/2006 a) (11.5- 3.01)/(10 - 6) 2.1225 ND<2.34 OK (1/2/2007 a) ND<3.13 OK (10/4/2006 a) (2.34 - 3.13)/(8 - 7) -0.79 ND<3.84 OK (3/20/2007 a) ND<3.13 OK (10/4/2006 a) (3.84 - 3.13)/(9 - 7) 0.355 Page 1

ND<1 1.5 OK (6/9/2007 a) ND<3.13 OK (10/4/2006 a) (11.5- 3.13)/(10- 7) 2.79 ND<3.84 OK (3/20/2007 a) ND<2.34 OK (1/2/2007 a) (3.84 - 2.34)/(9 - 8) 1.5 ND<I 1.5 OK (6/9/2007 a) ND<2.34 OK (1/2/2007 a) (11.5 - 2.34)/(10 - 8) 4.58 ND<1 1.5 OK (6/9/2007 a) ND<3.84 OK (3/20/2007 a) (11.5 - 3.84)/(10 - 9) 7.66 Number of Q values = 45 Ordered Q Values n Q 1 -2.59 2 -1.96 3 -1.32 4 -0.92 5 -0.876667 6 -0.79 7 -0.7075 8 -0.583333 9 -0.542 10 -0.335 11 -0.29 12 -0.285714 13 -0.2825 14 -0.215 15 -0.182 16 -0.095 17 -0.08 18 -0.05 19 -0.03 20 -0.0233333 21 -0.0114286 22 0.0983333 23 0.118 24 0.118333 25 0.12 26 0.128 27 0.1775 28 0.26 29 0.276667 30 0.355 31 0.415 32 0.6375 33 0.7075 34 0.86 35 1.00889 36 1.17857 37 1.306 38 1.38333 39 1.5 "40 1.77 41 2.1225 42 2.79 43 3.42 44 4.58 45 7.66 Page 2

Sen's Estimator (Median Q),is 0.118 Time Period Observations 1/19/2006 1 2/24/2006 1 3/17/2006 1 4/19/2006 1 5/12/2006 1 7/16/2006 1 10/4/2006 1 1/2/2007 1 3/20/2007 1 6/9/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 18.39 O M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.2825 = Q(13)

Upper limit is 0.7075 = Q(33)

-0.2825 < 0 < 0.7075 indicating no trend in data.

Page 3

Cs-1 37 C) 0.

C:

0 C) t0 *0 (0 C0 N-0 N-0 C (0 0 0 0C0 N-0 0 0 C) 0 C) U:) (N 0 CN (0 0)

Z::

W. (0 Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW119-4 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<3.93 U (1/20/2006 a) ND<2.28 U (1/19/2006 a) (3.93 - 2.28)/(2 - 1) 1.65 ND<3.47 U (2/24/2006 a) ND<2.28 U (1/19/2006 a) (3.47 - 2.28)/(3 - 1) 0.595 ND<4.84 U (3/19/2006 a) ND<2.28 U (1/19/2006 a) (4.84 - 2.28)/(4 - 1) 0.853333 ND<4.03 U (4/18/2006 a) ND<2.28 U (1/19/2006 a) (4.03 - 2.28)/(5 - 1) 0.4375 ND<3.75 OK (5/19/2006 a) ND<2.28 U (1/19/2006 a) (3.75 - 2.28)/(6 - 1) 0.294 ND<3.07 OK (7/16/2006 a) ND<2.28 U (1/19/2006 a) (3.07 - 2.28)/(7 - 1) 0.131667 ND<3.28 OK (10/4/2006 a) ND<2.28 U (1/19/2006 a) (3.28 - 2.28)/(8 - 1) 0.142857 ND<4.68 OK (1/2/2007 a) ND<2.28 U (1/19/2006 a) (4.68 - 2.28)/(9 - 1) 0.3 ND<5.11 OK (3/19/2007 a) ND<2.28 U (1/19/2006 a) (5.11 - 2.28)/(10 - 1) 0.314444 ND<4.73 OK (6/9/2007 a) ND<2.28 U (1/19/2006 a) (4.73- 2.28)/(11 -. 1) 0.245 ND<3.47 U (2/24/2006 a) ND<3.93 U (1/20/2006 a) (3.47 - 3.93)/(3 - 2) -0.46 ND<4.84 U (3/19/2006 a) ND<3.93 U_(1/20/2006 a) (4.84 - 3.93)/(4 - 2) 0.455 ND<4.03 U (4/18/2006 a) ND<3.93 U (1/20/2006 a) (4.03 - 3.93)/(5 - 2) 0.0333333 ND<3.75 OK (5/19/2006 a) ND<3.93 U (1/20/2006 a) (3.75 - 3.93)/(6 - 2) -0.045 ND<3.07 OK (7/16/2006 a) ND<3.93 U (1/20/2006 a) (3.07 - 3.93)/(7 - 2) -0.172

.ND<4.68 ND<3.28 OK (10/4/2006 a)

OK (1/2/2007 a)

ND<5.11 OK (3/19/2007 a)

ND<3.93 ND<3.93 ND<3.93 U (1/20/2006 U (1/20/2006 U (1/20/2006 a) a)

a)

(3.28 (4.68 (5.11 3.93)/(8 - 2) 3.93)/(9 - 2) 3.93)/(10- 2)

-0.108333 0.107143 0.1475 ND<4.73 OK (6/9/2007 a) ND<3.93 U (1/20/2006 a) (4.73 - 3.93)/(11 - 2) 0.0888889 ND<4.84 U (3/19/2006 a) ND<3.47 U (2/24/2006 a) (4.84 - 3.47)/(4 - 3) 1.37 ND<4.03 U (4/18/2006 a) ND<3.47 U (2/24/2006 a) (4.03 - 3.47)/(5 - 3) 0.28 ND<3.75 OK (5/19/2006 a) ND<3.47 U (2/24/2006 a) (3.75 - 3.47)/(6 - 3) 0.0933333 ND<3.07 OK (7/16/2006 a) ND<3.47 U (2/24/2006 a) (3.07 - 3.47)/(7 - 3) -0.1 ND<3.28 OK (10/4/2006 a) ND<3.47 U (2/24/2006 a) (3.28 - 3.47)/(8 - 3) -0.038 ND<4.68 OK (1/2/2007 a) ND<3.47 U (2/24/2006 a) (4.68 - 3.47)/(9 - 3) 0.201667 ND<5.11 OK (3/19/2007 a) ND<3.47 U (2/24/2006 a) (5.11 - 3.47)/(10 - 3) 0.234286 ND<4.73 OK (6/9/2007 a) ND<3.47 U (2/24/2006 a) (4.73 - 3.47)/(11 - 3) 0.1575 ND<4.03 U (4/18/2006 a) ND<4.84 U (3/19/2006 a) (4.03 - 4.84)/(5 - 4) -0.81 ND<3.75 OK (5/19/2006 a) ND<4.84 U (3/19/2006 a) (3.75 - 4.84)/(6 - 4) -0.545 ND<3.07 OK (7/16/2006 a) ND<4.84 U (3/19/2006 a) (3.07 - 4.84)/(7 - 4) -0.59 ND<3.28 OK (10/4/2006 a) ND<4.84 U (3/19/2006 a) (3.28 - 4.84)/(8 - 4) -0.39 ND<4.68 OK (1/2/2007 a) ND<4.84 U (3/19/2006 a) (4.68 - 4.84)/(9 - 4) -0.032 ND<5.11 OK (3/19/2007 a) ND<4.84 U (3/19/2006 a) (5.11 - 4.84)/(10 - 4) 0.045 ND<4.73 OK (6/9/2007 a) ND<4.84 U (3/19/2006 a) (4.73 - 4.84)/(11 - 4) -0.01 57143 ND<3.75 OK (5/19/2006 a) ND<4.03 U (4/18/2006 a) (3.75 - 4.03)/(6 - 5) -0.28 ND<3.07 OK (7/16/2006 a) ND<4.03 U (4/18/2006 a) (3.07 - 4.03)/(7 - 5) -0.48 ND<3.28 OK (10/4/2006 a) ND<4.03 U (4/18/2006 a) (3.28 - 4.03)/(8 - 5) -0.25 ND<4.68 OK (1/2/2007 a) ND<4.03 U (4/18/2006 a) (4.68 - 4.03)/(9 - 5) 0.1625 ND<5.11 OK (3/19/2007 a) ND<4.03 U (4/18/2006 a) (5.11 - 4.03)/(10 - 5) 0.216 ND.<4.73 OK (6/9/2007 a) ND<4.03 U (4/18/2006 a) (4.73 - 4.03)/(11 - 5) 0.116667

ND<3.07 OK (7/16/2006 a) ND<3.75 OK (5/19/2006 a) (3.07 - 3.75)/(7 - 6) -0.68 ND<3.28 OK (10/4/2006 a) ND<3.75 OK (5/19/2006 a) (3.28 - 3.75)/(8 - 6) -0.235 Page 1

ND<3.75 OK (5/19/2006 a) (4.68 - 3.75)/(9 - 6) 0.31 O ND<5.11 ND<4.68 OK (3/19/2007 (1/2/2007 a)a) ND<3.75 OK (5/19/2006 a) (5.11 - 3.75)/(10- 6) 0.34 ND<4.73 OK (6/9/2007 a) ND<3.75 OK (5/19/2006 a) (4.73 - 3.75)/(11 - 6) 0.196 ND<3.28 OK (10/4/2006 a) ND<3.07 OK (7/16/2006 a) (3.28 - 3.07)/(8 - 7) 0.21 ND<4.68 OK (1/2/2007 a) ND<3.07 OK (7/16/2006 a) (4.68 - 3.07)/(9 - 7) 0.805 ND<5.11 OK (3/19/2007 a) ND<3.07 OK (7/16/2006 a) (5.11 - 3.07)/(10- 7) 0.68 ND<4.73 OK (6/9/2007 a) ND<3.07 OK (7/16/2006 a) (4.73 - 3.07)/(11 - 7) 0.415 ND<4.68 OK (1/2/2007 a) ND<3.28 OK (10/4/2006 a) (4.68 - 3.28)/(9 - 8) 1.4 ND<5.11 OK (3/19/2007 a) ND<3.28 OK (10/4/2006 a) (5.11 - 3.28)/(10 - 8) 0.915 ND<4.73 OK (6/9/2007 a) ND<3.28 OK (110/4/2006 a) (4.73 - 3.28)/(11 - 8) 0.483333 ND<5.11 OK (3/19/2007 a) ND<4.68 OK (1/2/2007 a) (5.11 - 4.68)/(10 - 9) 0.43 ND<4.73 OK (6/9/2007 a) ND<4.68 OK (1/2/2007 a) (4.73 - 4.68)/(11 - 9) 0.025 ND<4.73 OK (6/9/2007 a) ND<5.11 OK (3/19/2007 a) (4.73 - 5.11)/(11 - 10) -0.38 Number of Q values = 55 Ordered o Values n 0 1 -0.81 2 -0.68 3 -0.59 4 -0.545 5 -0.48 6 -0.46 7 -0.39 8 -0.38 9 -0.28 1.0 -0.25 11 -0.235 12 -0.172 13 -0.108333 14 -0.1 15 -0.045 16 -0.038 17 -0.032 18 -0.0157143 19 0.025 20 0.0333333 21 0.045 22 0.0888889 23 0.0933333 24 0.107143 25 0.116667 26 0.131667 27 0.142857 28 0.1475 29 0.1575 30 0.1625

. 31 32 33 0.196 0.201667 0.21 34 0.216 Page 2

36 O 35 0.245 0.234286 37 0.28 38 0.294 39 0.3 40 0.31 41 0.314444 42 0.34 43 0.415 44 0.43 45 0.4375 46 0.455 47 0.483333 48 0.595 49 0.68 50 0.805 51 0.853333 52 0.915 53 1.37 54 1.4 55 1.65 Sen's Estimator (Median Q) is 0.1475 Time Period Observations 1/19/2006 1 1/20/2006 1 2/24/2006 1

3/19/2006 1 4/18/2006 1 5/19/2006 1 7/16/2006 1 10/4/2006 1 1/2/2007 1 3/19/2007 1 6/9/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.032 = Q(17)

Upper limit is 0.3 = Q(39)

-0.032 < 0 < 0.3 indicating no trend in data.

Page 3

Cs-1 37 Time-Series Graph of MW1 19-5 20 j --

0 0.

C,

O C.)

0 CD D DD CO n o

CD 0 0 n 0 0 0 0* 0 0 0 0

-~* (N 0)

Sco CD)at Sample Date Page 1

OSen's Parameter:Slope Cs-1Analysis 37 Location: MW119-5 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.81 U (2/24/2006 a) ND<3.04 U (1/19/2006 a) (3.81 - 3.04)/(2 - 1) 0.77 ND<3.25 U (3/16/2006 a) ND<3.04 U (1/19/2006 a) (3.25 - 3.04)/(3 - 1.) 0.105 ND<3.69 U (3/17/2006 a) ND<3.04 U (1/19/2006 a) (3.69 - 3.04)/(4 - 1) 0.216667 ND<5.42 U (4/18/2006 a) ND<3.04 U (1/19/2006 a) (5.42 - 3.04)/(5 - 1) 0.595 ND<3.67 OK (5/18/2006 a) ND<3.04 U (1/19/2006 a) (3.67 - 3.04)/(6 - 1) 0.126 ND<2.82 OK (7/18/2006 -) ND<3.04 U (1/19/2006 a) (2.82 - 3.04)/(7 - 1) -0.0366667 ND<5.02 OK (10/6/2006 a) ND<3.04 U (1/19/2006 a) (5.02 - 3.04)/(8 - 1) 0.282857 ND<3.89 OK (1/4/2007 a) ND<3.04 U (1/19/2006 a) (3.89- 3.04)/(9 - 1) 0.10625 ND<10.3 OK (3/20/2007 a) ND<3.04 U (1/19/2006 a) (10.3 - 3.04)/(10 - 1) 0.806667 ND<8.91 OK (6/9/2007 a) ND<3.04 U (1/19/2006 a) (8.91 - 3.04)/(11 - 1) 0.587 ND<3.25 U (3/16/2006 a) ND<3.81 U (2/24/2006 a) (3.25- 3.81)/(3- 2) -0.56 ND<3.69 U (3/17/2006 a) ND<3.81 U (2/24/2006 a) (3.69- 3.81)/(4 - 2) -0.06 ND<5.42 U (4/18/2006 a) ND<3.81 U (2/24/2006 a) (5.42 - 3.81)/(5 - 2) 0.536667 ND<3.67 OK (5/18/2006 a) ND<3.81 U (2/24/2006 a) (3.67- 3.81)/(6- 2) -0.035 ND<2.82 OK (7/18/2006 -) ND<3.81 U (2/24/2006 a) (2.82 - 3.81)/(7 - 2) -0.198

.ND<3.89 ND<5.02 OK (10/6/2006 a)

OK (1/4/2007 a)

ND<10.3 OK (3/20/2007 a)

ND<3.81 ND<3.81 ND<3.81 U (2/24/2006 U (2/24/2006 U (2/24/2006 a) a)

a)

(5.02 -

(3.89-(10.3 -

3.81)/(8 - 2) 3.81)/(9 - 2) 3.81)/(10 - 2) 0.201667 0.0114286 0.81125 ND<8.91 OK (6/9/2007 a) ND<3.81 U (2/24/2006 a) (8.91 - 3.81)/(11 - 2) 0.566667 ND<3.69 U (3/17/2006 a) ND<3.25 U (3/16/2006 a) (3.69 - 3.25)/(4 - 3) 0.44 ND<5.42 U (4/18/2006 a) ND<3.25 U (3/16/2006 a) (5.42 - 3.25)/(5 - 3) 1.085 ND<3.67 OK (5/18/2006 a) ND<3.25 U (3/16/2006 a) (3.67 - 3.25)/(6' 3) 0.14 ND<2.82 OK (7/18/2006 -) ND<3.25 U (3/16/2006 a) (2.82 - 3.25)/(7 - 3) -0.1075 ND<5.02 OK (10/6/2006 a) ND<3.25 U (3/16/2006 a) (5.02 - 3.25)/(8 - 3) 0.354 ND<3.89 OK (1/4/2007 a) ND<3.25 U (3/16/2006 a) (3.89 - 3.25)/(9 - 3) 0.106667 ND<10.3 OK (3/20/2007 a) ND<3.25 U (3/16/2006 a) (10.3- 3.25)/(10- 3) 1.00714 ND<8.91 OK (6/9/2007 a) ND<3.25 U (3/16/2006 a) (8.91 - 3.25)/(11 - 3) 0.7075 ND<5.42 U (4/18/2006 a) ND<3.69 U (3/17/2006 a) (5.42 - 3.69)/(5 - 4) 1.73 ND<3.67 OK (5/18/2006 a) ND<3.69 U (3/17/2006 a) (3.67 - 3.69)/(6 - 4) -0.01 ND<2.82 OK (7/18/2006 -) ND<3.69 U (3/17/2006 a) (2.82 - 3.69)/(7 - 4) -0.29 ND<5.02 OK (10/6/2006 a) ND<3.69 U (3/17/2006 a) (5.02 - 3.69)/(8 - 4) 0.3325 ND<3.89 OK (1/4/2007 a) ND<3.69 U (3/17/2006 a) (3.89 - 3.69)/(9 - 4) 0.04 ND<10.3 OK (3/20/2007 a) ND<3.69 U (3/17/2006 a) (10.3- 3.69)/(10- 4) 1.10167 ND<8.91 OK (6/9/2007 a) ND<3.69 U (3/17/2006 a) (8.91 -3.69)/(11 - 4) 0.745714 ND<3.67 OK (5/18/2006 a) ND<5.42 U (4/18/2006 a) (3.67 - 5.42)/(6 - 5) -1.75 ND<2.82 OK (7/18/2006 -) ND<5.42 U (4/18/2006 a) (2.82 - 5.42)/(7 - 5) -1.3 ND<5.02 OK (10/6/2006 a) ND<5.42 U (4/18/2006 a) (5.02 - 5.42)/(8 - 5) -0.133333 ND<3.89 OK (1/4/2007 a) ND<5.42 U (4/18/2006 a) (3.89 - 5.42)/(9 - 5) -0.3825 ND<10.3 OK (3/20/2007 a) ND<5.42 U (4/18/2006 a) (10.3- 5.42)/(10 -5) 0.976 ND<8.91 OK (6/9/2007 a) ND<5.42 U (4/18/2006 a) (8.91 - 5.42)/(11 - 5) 0.581667

. ND<2.82 OK (7/18/2006 -)

ND<5.02 OK (10/6/2006 a)

ND<3.67 OK (5/18/2006 a)

(2.82 - 3.67)/(7 - 6)

(5.02 13.67)/(8 -. 6)

-0.85 0.675 Page 1

ND<3.67 OK (5/18/2006 a) (3.89 - 3.67)/(9 - 6) 0.0733333 O ND<1 0.3 OK ND<3.89 OK (3/20/2007 (1/4/2007 a)a) ND<3.67 OK (5/18/2006 a) (10.3 - 3.67)/(10- 6) 1.6575 ND<8.91 OK (6/9/2007 a) ND<3.67 OK (5/18/2006 a) (8.91 - 3.67)/(11 - 6) 1.048 ND<5.02 OK (10/6/2006 a) ND<2.82 OK (7/18/2006 ~) (5.02 - 2.82)/(8 - 7) 2.2 ND<3.89 OK (1/4/2007 a) ND<2.82 OK (7/18/2006 ~) (3.89 - 2.82)/(9 - 7) 0.535 ND<1 0.3 OK (3/20/2007 a) ND<2.82 OK (7/18/2006 ~) (10.3 - 2.82)/(10 - 7) 2.49333 ND<8.91 OK (6/9/2007 a) ND<2.82 OK (7/18/2006 ~) (8.91 - 2.82)/(11 - 7) 1.5225 ND<3.89 OK (1/4/2007 a) ND<5.02 OK (10/6/2006 a) (3.89 - 5.02)/(9 - 8) -1.13 ND<10.3 OK (3/20/2007 a) ND<5.02 OK (10/6/2006 a) (10.3 - 5.02)/(10 - 8) 2.64 ND<8.91 OK (6/9/2007 a) ND<5.02 OK (10/6/2006 a) (8.91 - 5.02)/(11 - 8) 1.29667 ND<3.89 OK (1/4/2007 a) (10.3 - 3.89)/(10 - 9) 6.41 ND<10.3 6K (3/20/2007 a)

ND<8.91 OK (6/9/2007 a) ND<3.89 OK (1/4/2007 a) (8.91 - 3.89)/(11 - 9) 2.51 ND<8.91 OK (6/9/2007 a) ND<1 0.3 OK (3/20/2007 a) (8.91 - 10.3)/(11 - 10) -1.39 Number of Q values = 55 Ordered o Values n Q 1 -1.75 2 -1.39 3 -1.3 4 -1.13 O 5 6

7

-0.85

-0.56

-0.3825 8 -0.29 9 -0.198 10 -0.133333 11 -0.1075 12 -0.06 13 -0.0366667 14 -0.035 15 -0.01 16 0.0114286 17 0.04 18 0.0733333 19 0.105 20 0.10625 21 0.106667 22 0.126 23 0.14 24 0.201667 25 0.216667 26 0.282857 27 0.3325 28 0.354 29 0.44 30 0.535

. 31 32 33 0.536667 0.566667 0.581667 34 0.587 Page 2

35 0.595 36 0.675 37 0.7075 38 0.745714 39 0.77 40 0.806667 41 0.81125 42 0.976 43 1.00714 44 1.048 45 1.085 46 1.10167 47 1.29667 48 1.5225 49 1.6575 50 1.73 51 2.2 52 2.49333 53 2.51 54 2.64 55 6.41 Sen's Estimator (Median Q) is 0.354 Time Period Observations 1/19/2006 1 2/24/2006 1

. 3/16/2006 3/17/2006 4/18/2006 1

1 1

5/18/2006 1 7/18/2006 1 10/6/2006 1 1/4/2007 1 3/20/2007 1 6/9/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is 0.04 = Q(17)

Upper limit is 0.77 = Q(39) 0.04 > 0 indicating an upward trend in data.

Page 3

0 Cs-1 37 0.

0 L-)

(D (D (o (0 t r- 0 Co (0 0 0 C). 0 0 0

0) 0 0D 0 C0 0 0 CIN co 0 to (-c~)

co Sample DateI Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW119-6 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a ND<3.84 U (2/24/2006 a) ND<2.57 U (1/19/2006 a) (3.84- 2.57)/(2 - 1) 1.27 ND<6.91 U (3/16/2006 a) ND<2.57 U (1/19/2006 a) (6.91 - 2.57)/(3 - 1) 2.17 ND<3.42 U (3/17/2006 a) ND<2.57 U (1/19/2006 a) (3.42- 2.57)/(4 - 1) 0.283333 ND<3.41 U (4/19/2006 -) ND<2.57 U (1/19/2006 a) (3.41 - 2.57)/(5 - 1) 0.21 ND<3.45 OK (5/18/2006 a) ND<2.57 U (1/19/2006 a) (3.45- 2.57)/(6 - 1) 0.176 ND<3.85 OK (7/18/2006 a) ND<2.57 U (1/19/2006 a) (3.85- 2.57)/(7 - 1) 0.213333 ND<3.25 OK (10/6/2006 a) ND<2.57 U (1/19/2006 a) (3.25- 2.57)/(8 - 1) 0.0971429 ND<3.01 OK (1/3/2007 a) ND<2.57 U (1/19/2006 a) (3.01 - 2.57)/(9 - 1) 0.055 ND<3.51 OK (3/19/2007 a) ND<2.57 U (1/19/2006 a) (3.51 - 2.57)/(10 - 1) 0.104444 ND<4.05 OK (6/11/2007 a) ND<2.57 U (1/19/2006 a) (4.05 - 2.57)/(11 - 1) 0.148 ND<6.91 U (3/16/2006 a) ND<3.84 U (2/24/2006 a) (6.91 - 3.84)/(3 - 2) 3.07 ND<3.42 U (3/17/2006 a) ND<3.84 U (2/24/2006 a) (3.42 - 3.84)/(4 - 2) -0.21 ND<3.41 U (4/19/2006 -) ND<3.84 U (2/24/2006 a) (3.41 - 3.84)/(5 - 2) -0.143333 ND<3.45 OK (5/18/2006 a) ND<3.84 U (2/24/2006 a) (3.45 - 3.84)/(6 - 2) -0.0975 ND<3.85 OK (7/18/2006 a) ND<3.84 U (2/24/2006 a) (3.85 - 3.84)/(7 - 2) 0.002

. ND<3.25 OK (10/6/2006 a)

ND<3.01 OK (1/3/2007 a)

ND<3.51 OK (3/19/2007 a)

ND<3.84 ND<3.84 ND<3.84 U (2/24/2006 U (2/24/2006 U (2/24/2006 a) a)

a)

(3.25 (3.01 (3.51 3.84)/(8 - 2) 3.84)/(9 - 2) 3.84)/(10 - 2)

-0.0983333

-0.118571

-0.04125 ND<4.05 OK (6/11/2007 a) ND<3.84 U (2/24/2006 a) (4.05 - 3.84)/(11 - 2) 0.0233333 ND<3.42 U (3/17/2006 a) ND<6.91 U (3/16/2006 a) (3.42- 6.91)/(4- 3) -3.49 ND<3.41 U (4/19/2006 -) ND<6.91 U (3/16/2006 a) (3.41 - 6.91)/(5- 3) -1.75 ND<3.45 OK (5/18/2006 a) ND<6.91 U (3/16/2006 a) (3.45- 6.91)/(6- 3) -1.15333 ND<3.85 OK (7/18/2006 a) ND<6.91 U (3/16/2006 a) (3.85 - 6.91)/(7 - 3) -0.765 ND<3.25 OK (10/6/2006 a) ND<6.91 U (3/16/2006 a) (3.25 - 6.91)/(8 - 3) -0.732 ND<3.01 OK (1/3/2007 a) ND<6.91 U (3/16/2006 a) (3.01 - 6.91)/(9- 3) -0.65 ND<3.51 OK (3/19/2007 a) ND<6.91 U (3/16/2006 a) (3.51 - 6.91)/(10 - 3) -0.485714 ND<4.05 OK (6/11/2007 a) ND<6.91 U (3/16/2006 a) (4.05 - 6.91)/(11 - 3) -0.3575 ND<3.41 U (4/19/2006 -) ND<3.42 U (3/17/2006 a) (3.41 - 3.42)/(5 - 4) -0.01 ND<3.45 OK (5/18/2006 a) ND<3.42 U (3/17/2006 a) (3.45 3.42)/(6 - 4) 0.015 ND<3.85 OK (7/18/2006 a) ND<3.42 U (3/17/2006 a) (3.85 - 3.42)/(7 - 4) 0.143333 ND<3.25 OK (10/6/2006 a) ND<3.42 U (3/17/2006 a) (3.25 - 3.42)/(8 - 4) -0.0425 ND<3.01 OK (1/3/2007 a) ND<3.42 U (3/17/2006 a) (3.01 - 3.42)/(9 - 4) -0.082 ND<3.51 OK (3/19/2007 a) ND<3.42 U (3/17/2006 a) (3.51 - 3.42)/(10 - 4) 0.015 ND<4.05 OK (6/11/2007 a) ND<3.42 U (3/17/2006 a) (4.05 - 3.42)/(11 - 4) 0.09 ND<3.45 OK (5/18/2006 a) ND<3.41 U (4/19/2006 ~) (3.45- 3.41)/(6- 5) 0.04 ND<3.85 OK (7/18/2006 a) ND<3.41 U (4/19/2006 ~) (3.85 - 3.41)/(7 - 5) 0.22 ND<3.25 OK (10/6/2006 a) ND<3.41 U (4/19/2006 ~) (3.25- 3.41)/(8- 5) -0.0533333 ND<3.01 OK (1/3/2007 a) ND<3.41 U.(4/19/2006 ~) (3.01 - 3.41)/(9- 5) -0.1 ND<3.51 OK (3/19/2007 a) ND<3.41 U (4/19/2006 ~) (3.51 - 3.41)/(10 - 5) 0.02 ND<4.05 OK (6/11/2007 a) ND<3.41 U (4/19/2006 ~) (4.05- 3.41)/(11 - 5) 0.106667

. ND<3.85 OK (7/18/2006 a)

ND<3.25 OK (10/6/2006 a)

ND<3.45 OK (5/18/2006 a)

(3.85 - 3.45)/(7 - 6)

(3.25 - 3.45)/(8 - 6) 0.4

-0.1 Page 1

ND<3.45 OK (5/18/2006 a) (3.01 - 3.45)/(9 - 6) -0.146667 O ND<3.51 ND<3.01 OK (3/19/2007 (1/3/2007 a)a) ND<3.45 OK (5/18/2006 a) (3.51 - 3.45)/(10- 6) 0.015 ND<4.05 OK (6/11/2007 a) ND<3.45 OK (5/18/2006 a) (4.05 - 3.45)/(11 - 6) 0.12 ND<3.25 OK (10/6/2006 a) ND<3.85 OK (7/18/2006 a) (3.25 - 3.85)/(8 - 7) -0.6 ND<3.01 OK (1/3/2007 a) ND<3.85 OK (7/18/2006 a) (3.01 - 3.85)/(9 - 7) -0.42 ND<3.51 OK (3/19/2007 a) ND<3.85 OK (7/18/2006 a) (3.51 - 3.85)/(10 - 7) -0.113333 ND<4.05 OK (6/11/2007 a) ND<3.85 OK (7/18/2006 a) (4.05 - 3.85)/(11 - 7) 0.05 ND<3.01 OK (1/3/2007 a) ND<3.25 OK (10/6/2006 a) (3.01 - 3.25)/(9 - 8) -0.24 ND<3.51 OK (3/19/2007 a) ND<3.25 OK (10/6/2006 a) (3.51 - 3.25)/(10- 8) 0.13 ND<4.05 OK (6/11/2007 a) ND<3.25 OK (10/6/2006 a) (4.05 - 3.25)/(11 - 8) 0.266667 ND<3.51 OK (3/19/2007 a) ND<3.01 OK (1/3/2007 a) (3.51 - 3.01)/(10 - 9) 0.5 ND<4.05 OK (6/11/2007 a) ND<3.01 OK (1/3/2007 a) (4.05 - 3.01)/(11 - 9) 0.52 ND<4.05 OK (6/11/2007 a) ND<3.51 OK (3/19/2007 a) (4.05 - 3.51)/(11 - 10) 0.54 Number of Q values = 55 Ordered o Values n 0 1 -3.49 2 -1.75 3 -1.15333 4 -0.765 5 -0.732 6 -0.65 7 -0.6 8 -0.485714 9 -0.42 10 -0.3575 11 -0.24 12 -0.21 13 -0.146667 14 -0.143333 15 -0.118571 16 -0.113333 17 -0.1 18 -0.1 19 -0.0983333 20 -0.0975 21 -0.082 22 -0.0533333 23 -0.0425 24 -0.04125 25 -0.01 26 0.002 27 0.015 28 0.015 29 0.015 30 0.02

. 31 32 33 0.0233333 0.04 0.05 34 0.055 Page 2

. 36 35 37 0.0971429 0.09 0.104444 38 0.106667 39 0.12 40 0.13 41 0.143333 42 0.148 43 0.176 44 0.21 45 0.213333 46 0.22 47 0.266667 48 0.283333 49 0.4 50 0.5 51 0.52 52 0.54 53 1.27 54 2.17 55 3.07 Sen's Estimator (Median Q) is 0.015 Time Period Observations 1/19/2006 1 2/24/2006 1

. 3/16/2006 3/17/2006 4/19/2006 1

1 1

5/18/2006 1 7/18/2006 1 10/6/2006 1 1/3/2007 1 3/19/2007 1 6/11/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.1 = Q(17)

Upper limit is 0.12 = Q(39)

-0.1 < 0 < 0.12 indicating no trend in data.

Page 3

Cs-1 37 Time-Series Graph of MW120-1 5

44 0

0(.

oý aC) CDC)

SapeDt Q) 0 -0 q (0 !Z**

00 Do Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW120-1 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<2.3 U (2/13/2006 a) ND<3.46 U (1/11/2006 a) (2.3 - 3.46)/(2 - 1) -1.16 ND<3.98 U (3/16/2006 a) ND<3.46 U (1/11/2006 a) (3.98 - 3.46)/(3 - 1) 0.26 ND<3.47 U (4/12/2006 a) ND<3.46 U (1/11/2006 a) (3.47 - 3.46)/(4 - 1) 0.00333333 ND<3.27 U (4/13/2006 a) ND<3.46 U (1/11/2006 a) (3.27- 3.46)/(5 - 1) -0.0475 ND<5.39 OK (5/12/2006 a) ND<3.46 U (1/11/2006 a) (5.39- 3.46)/(6 - 1) 0.386 ND<4.02 OK (7/11/2006 a) ND<3.46 U (1/11/2006 a) (4.02- 3.46)/(7 - 1) 0.0933333 ND<3.41 OK (10/4/2006 a) ND<3.46 U (1/11/2006 a) (3.41 - 3.46)/(8 - 1) -0.00714286 ND<2.73 OK (1/2/2007 a) ND<3.46 U (1/11/2006 a) (2.73- 3.46)/(9 - 1) -0.09125 ND<3.85 OK (3/21/2007 a) ND<3.46 U (1/11/2006 a) (3.85- 3.46)/(10 - 1) 0.0433333 ND<3.12 OK (6/9/2007 a) ND<3.46 U (1/11/2006 a) (3.12- 3.46)/(11 - 1) -0.034 ND<3.98 U (3/16/2006 a) ND<2.3 U (2/13/2006 a) (3.98 - 2.3)/(3 - 2) 1.68' ND<3.47 U (4/12/2006 a) ND<2.3 U (2/13/2006 a) (3.47 - 2.3)/(4 - 2) 0.585 ND<3.27 U (4/13/2006 a) ND<2.3 U (2/13/2006 a) (3.27 - 2.3)/(5 - 2) 0.323333 ND<5.39 OK (5/12/2006 a) ND<2.3 U (2/13/2006 a) (5.39 - 2.3)/(6 - 2) 0.7725 ND<4.02 OK (7/11/2006 a) ND<2.3 U (2/13/2006 a) (4.02 - 2.3)/(7 - 2) 0.344

. ND<3.41 ND<2.73 ND<3.85 OK (10/4/2006 a)

OK (1/2/2007 a)

OK (3/21/2007 a)

ND<2.3 ND<2.3 ND<2.3 U (2/13/2006 a)

U (2/13/2006 a)

(3.41 (2.73 (3.85

- 2.3)/(8 - 2)

- 2.3)/(9 - 2)

- 2.3)/(10- 2) 0.185 0.0614286 0.19375 ND<3.12 OK (6/9/2007 a) ND<2.3 U (2/13/2006 a) (3.12 - 2.3)4(11 - 2) 0.0911111 ND<3.47 U (4/12/2006 a) ND<3.98 U (3/16/2006 a) (3.47 - 3.98)/(4 - 3) -0.51 ND<3.27 U (4/13/2006 a) ND<3.98 U (3/16/2006 a) (3.27 - 3.98)/(5 - 3) -0.355 ND<5.39 OK (5/12/2006 a) ND<3.98 U (3/16/2006 a) (5.39 - 3.98)/(6 - 3) 0.47 ND<4.02 OK (7/11/2006 a) ND<3.98 U (3/16/2006 a) (4.02 - 3.98)/(7 - 3) 0.01 ND<3.41 OK (10/4/2006 a) ND<3.98 U (3/16/2006 a) (3.41 - 3.98)/(8 - 3) -0.114 ND<2.73 OK (1/2/2007 a) ND<3.98 U (3/16/2006 a) (2.73 - 3.98)/(9 - 3) -0.208333 ND<3.85 OK (3/21/2007 a) ND<3.98 U (3/16/2006 a) (3.85 - 3.98)/(10 - 3) -0.0185714 ND<3.12 OK (6/9/2007 a) ND<3.98 U (3/16/2006 a) (3.12- 3.98)/(11 - 3) -0.1075 ND<3.27 U (4/13/2006 a) ND<3.47 U (4/12/2006 a) (3.27 - 3.47)/(5 - 4) -0.2 ND<5.39 OK (5/12/2006 a) ND<3.47 U (4/12/2006 a) (5.39 - 3.47)/(6 - 4) 0.96 ND<4.02 OK (7/11/2006 a) ND<3.47 U (4/12/2006 a) (4.02 - 3.47)/(7 - 4) 0.183333 ND<3.41 OK (10/4/2006 a) ND<3.47 U (4/12/2006 a) (3.41 - 3.47)/(8 - 4) -0.015 ND<2.73 OK (1/2/2007 a) ND<3.47 U (4/12/2006 a) (2.73 - 3.47)/(9 - 4) -0.148 ND<3.85 OK (3/21/2007 a) ND<3.47 U (4/12/2006 a) (3.85 - 3.47)/(10 - 4) 0.0633333 ND<3.12 OK (6/9/2007 a) ND<3.47 U (4/12/2006 a) (3.12 - 3.47)/(11 - 4) -0.05 ND<5.39 OK (5/12/2006 a) ND<3.27 U (4/13/2006 a) (5.39 - 3.27)/(6 - 5) 2.12 ND<4.02 OK (7/11/2006 a) ND<3.27 U (4/13/2006 a) (4.02 - 3.27)/(7 - 5) 0.375 ND<3.41 OK (10/4/2006 a) ND<3.27 U (4/13/2006 a) (3.41 - 3.27)/(8 - 5) 0.0466667 ND<2.73 OK (1/2/2007 a) ND<3.27 U (4/13/2006 a) (2.73 - 3.27)/(9 - 5) -0.135 ND<3.85 OK (3/21/2007 a) ND<3.27 U (4/13/2006 a) (3.85 - 3.27)/(10- 5) 0.116 ND<3.12 OK (6/9/2007 a) ND<3.27 U (4/13/2006 a) (3.12 - 3.27)/(11 - 5) -0.025 O ND<4.02 OK (7/11/2006 a)

ND<3.41 OK (10/4/2006 a)

ND<5.39 OK (5/12/2006 a)

(4.02 - 5.39)/(7 - 6)

(3.41 - 5.39)/(8 - 6)

-1.37

-0.99 Page 1

. ND<3.85 ND<2.73 OK (3/21/2007 (1/2/2007 a)a)

ND<3.12 OK (6/9/2007 a)

ND<5.39 OK (5/12/2006 a)

(2.73 - 5.39)/(9 - 6)

(3.85 - 5.39)/(10- 6)

(3.12 - 5.39)/(11 - 6)

-0.886667

-0.385

-0.454 ND<3.41 OK (10/4/2006 a) ND<4.02 OK (7/11/2006 a) (3.41 - 4.02)/(8 - 7) -0.61 ND<2.73 OK (1/2/2007 a) ND<4.02 OK (7/11/2006 a) (2.73 - 4.02)/(9 - 7) -0.645 ND<3.85 OK (3/21/2007 a) ND<4.02 OK (7/11/2006 a) (3.85- 4.02)/(10- 7) -0.0566667 ND<3.12 OK (6/9/2007 a) ND<4.02 OK (7/11/2006 a) (3.12 - 4.02)/(11 - 7) -0.225 ND<2.73 OK (1/2/2007 a) ND<3.41 OK (10/4/2006 a) (2.73 - 3.41)/(9 - 8) -0.68 ND<3.85 OK (3/21/2007 a) ND<3.41 OK (10/4/2006 a) (3.85 - 3.41)/(10- 8) 0.22 ND<3.12 OK (6/9/2007 a) ND<3.41 OK (10/4/2006 a) (3.12 - 3.41)/(11 - 8) -0.0966667 ND<2.73 OK (1/2/2007 a) (3.85 - 2.73)/(10- 9)

ND<3.85 OK (3/21/2007 a) 1.12 ND<3.12 OK (6/9/2007 a) ND<2.73 OK (1/2/2007 a) (3.12- 2.73)/(11 - 9) 0.195 ND<3.12 OK (6/9/2007 a) ND<3.85 OK (3/21/2)07 a) (3.12- 3.85)/(11 -10) -0.73 Number of Q values = 55 Ordered o Values n Q 1 -1.37 2 -1.16 3 -0.99 4 -0.886667 5 -0.73 6 -0.68 7 -0.645 8 -0.61 9 -0.51 10 -0.454 11 -0.385 12 -0.355 13 -0.225 14 -0.208333 15 -0.2 16 -0.148 17 -0.135 18 -0.114 19 -0.1075 20 -0.0966667 21 -0.09125 22 -0.0566667 23 -0.05 24 -0.0475 25 -0.034 26 -0.025 27 -0.0185714 28 -0.015 29 -0.00714286 30 0.00333333

. 31 32 33 0.01 0.0433333 0.0466667 34 0.0614286 Page 2

35 0.0633333 36 0.0911111 37 0.0933333 38 0.116 39 0.183333 40 0.185 41 0.19375 42 0.195 43 0.22 44 0.26 45 0.323333 46 0.344 47 0.375 48 0.386 49 0.47 50 0.585 51 0.7725 52 0.96 53 1.12 54 1.68 55 2.12

-Sen's Estimator (Median Q) is -0.015 Time Period Observations 1/11/2006 1 2/13/2006 1

. 3/16/2006 4/12/2006 4/13/2006 1

1 1

5/12/2006 1 7/11/2006 1 10/4/2006 1 1/2/2007 1 3/21/2007 1 6/9/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.135 = Q(17)

Upper limit is 0.183333 = Q(39)

-0.135 < 0 < 0.183333 indicating no trend in data.

Page 3

0 0 Cs-I 37 0.

0 C)

Co (0 CD (0 -l r 0 o> 0 (0 0 0ý 0 C, 0 0 CN (C) C) C) 0) C) r- )(N C'1

- 0) CD )

Sample DateI Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW120-2 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.47 U (1/1 6/2006 a) ND<2.06 U (1/13/2006 a) (3.47 - 2.06)/(2 - 1) 1.41 ND<2.41 U (2/13/2006 a) ND<2.06 U (1/13/2006 a) (2.41 - 2.06)/(3 - 1) 0.175 ND<3.55 U (3/17/2006 a) ND<2.06 U (1/13/2006 a) (3.55 - 2.06)/(4 - 1) 0.496667 ND<3.23 U (4/18/2006 a) ND<2.06 U (1/13/2006 a) (3.23 - 2.06)/(5 - 1) 0.2925 ND<6.05 OK (5/12/2006 a) ND<2.06 U (1/13/2006 a) (6.05 - 2.06)/(6 - 1) 0.798 ND<2.96 OK (7/18/2006 a) ND<2.06 U (1/13/2006 a) (2.96 - 2.06)/(7 - 1) 0.15 ND<4 OK (10/4/2006 a) ND<2.06 U (1/13/2006 a) (4 - 2.06)/(8 - 1) 0.277143 ND<4.47 OK (1/2/2007 a) ND<2.06 U (1/13/2006 a) (4.47 - 2.06)/(9 - 1) 0.30125 ND<4.51 OK (3/21/2007 a) ND<2.06 U (1/13/2006 a) (4.51 - 2.06)/(10 - 1) 0.272222 ND<4.78 OK (6/12/2007 a) ND<2.06 U (1/13/2006 a) (4.78- 2.06)/(11 - 1) 0.272 ND<2.41 U (2/13/2006 a) ND<3.47 U (1/16/2006 a) (2.41 - 3.47)/(3 - 2) -1.06 ND<3.55 U (3/17/2006 a) ND<3.47 U (1/16/2006 a) (3.55 - 3.47)/(4 - 2) 0.04 ND<3.23 U (4/18/2006 a) ND<3.47 U (1/16/2006 a) (3.23 - 3.47)/(5 - 2) -0.08 ND<6.05 OK (5/12/2006 a) ND<3.47 U (1/16/2006 a) (6.05 - 3.47)/(6 - 2) 0.645 ND<2.96 OK (7/18/2006 a) ND<3.47 U (1/16/2006 a) (2.96 - 3.47)/(7- 2) -0.102

. ND<4 OK (10/4/2006 a)

ND<4.47 OK (1/2/2007 a)

ND<4.51 OK (3/21/2007 a)

ND<3.47 ND<3.47 ND<3.47 U (1/16/2006 U (1/16/2006 U (1/16/2006 a) a)

a)

(4 - 3.47)/(8 - 2)

(4.47 - 3.47)/(9 - 2)

(4.51 - 3.47)/(10- 2) 0.0883333 0.142857 0.13 ND<4.78 OK (6/12/2007 a) ND<3.47 U (1/16/2006 a) (4.78 - 3.47)/(11 - 2) 0.145556 ND<3.55 U (3/17/2006 a) ND<2.41 U (2/13/2006 a) (3.55 - 2.41)/(4 - 3) 1.14 ND<3.23 U (4/18/2006 a) ND<2.41 U (2/13/2006 a) (3.23 - 2.41)/(5 - 3) 0.41 ND<6.05 OK (5/12/2006 a) ND<2.41 U (2/13/2006 a) (6.05 - 2.41)/(6 - 3) 1.21333 ND<2.96 OK (7/18/2006 a) ND<2.41 U (2/13/2006 a) (2.96 - 2.41)/(7 - 3) 0.1375 ND<4 OK (10/4/2006 a) ND<2.41 U (2/13/2006 a) (4- 2.41)/(8- 3) 0.318 ND<4.47 OK (1/2/2007 a) ND<2.41 U (2/13/2006 a) (4.47 - 2.41)/(9 - 3) 0.343333 ND<4.51 OK (3/21/2007 a) ND<2.41 U (2/13/2006 a) (4.51 - 2.41)/(10- 3) 0.3 ND<4.78 OK (6/12/2007 a) ND<2.41 U (2/13/2006 a) (4.78 - 2.41)/(11 - 3) 0.29625 ND<3.23 U (4/18/2006 a) ND<3.55 U (3/17/2006 a) (3.23 - 3.55)/(5 - 4) -0.32 ND<6.05 OK (5/12/2006 a) ND<3.55 U (3/17/2006 a) (6.05 - 3.55)/(6 - 4) 1.25 ND<2.96 OK (7/18/2006 a) ND<3.55 U (3/17/2006 a) (2.96 - 3.55)/(7 - 4) -0.196667 ND<4 OK (10/4/2006 a) ND<3.55 U (3/17/2006 a) (4 - 3.55)/(8 - 4) 0.1125 ND<4.47 OK (1/2/2007 a) ND<3.55 U (3/17/2006 a) (4.47 - 3.55)/(9 - 4) 0.184 ND<4.51 OK (3/21/2007 a) ND<3.55 U (3/17/2006 a) (4.51 - 3.55)/(10 - 4) 0.16 ND<4.78 OK (6/12/2007 a) ND<3.55 U (3/17/2006 a) (4.78 - 3.55)/(11 - 4) 0.175714 ND<6.05 OK (5/12/2006 a) ND<3.23 U (4/18/2006 a) (6.05 - 3.23)/(6 - 5) 2.82 ND<2.96 OK (7/18/2006 a) ND<3.23 U (4/18/2006 a) (2.96 - 3.23)/(7 - 5) -0.135 ND<4 OK (10/4/2006 a) ND<3.23 U (4/18/2006 a) (4 - 3.23)/(8 - 5) 0.256667 ND<4.47 OK (1/2/2007 a) ND<3.23 U (4/18/2006 a) (4.47 - 3.23)/(9 - 5) 0.31 ND<4.51 OK (3/21/2007 a) ND<3.23 U (4/18/2006 a) (4.51 - 3.23)/(10 - 5) 0.256 ND<4.78 OK (6/12/2007 a) ND<3.23 U (4/18/2006 a) (4.78 -3.23)/(11 - 5) 0.258333

. ND<2.96 OK (7/18/2006 a)

ND<4 OK (10/4/2006 a)

ND<6.05 OK (5/12/2006 a)

(2.96 - 6.05)/(7 - 6)

(4 - 6.05)/(8 - 6)

-3.09

-1.025 Page 1

. ND<4.51 ND<4.47 OK OK (3/21/2007 (1/2/2007 a)a)

ND<4.78 OK (6/12/2007 a)

ND<6.05 OK (5/12/2006 a)

(4.47 - 6.05)/(9 - 6)

(4.51 - 6.05)/(10- 6)

(4.78 - 6.05)/(11 - 6)

-0.526667

-0.385

-0.254 ND<4 OK (10/4/2006 a) ND<2.96 OK (7/18/2006 a) (4 - 2.96)/(8 - 7) 1.04 ND<4.47 OK (1/2/2007 a) ND<2.96 OK (7/18/2006 a) (4.47 - 2.96)/(9 - 7) 0.755 ND<4.51 OK (3/21/2007 a) ND<2.96 OK (7/18/2006 a) (4.51 - 2.96)/(10 - 7) 0.516667 ND<4.78 OK (6/12/2007 a) ND<2.96 OK (7/18/2006 a) (4.78 - 2.96)/(11 - 7) 0.455 ND<4.47 OK (1/2/2007 a) ND<4 OK (10/4/2006 a) (4.47 - 4)/(9 - 8) 0.47 ND<4.51 OK (3/21/2007 a) ND<4 OK (10/4/2006 a) (4.51 - 4)/(10 - 8) 0.255 ND<4.78 OK (6/12/2007 a) ND<4 OK (10/4/2006 a) (4.78- 4)/(11 - 8) 0.26 ND<4.51 OK (3/21/2007 a) (4.51 - 4.47)/(10 - 9)

ND<4.47 OK (1/2/2007 a) 0.04 ND<4.78 OK (6/12/2007 a) ND<4.47 OK (1/2/2007 a) (4.78 - 4.47)/(11 - 9) 0.155 ND<4.78 OK (6/12/2007 a) ND<4.51 OK (3/21/2007 a) (4.78 - 4.51)/(11 - 10) 0.27 Number of Q values = 55 Ordered o Values n a

-3.09 2 -1.06 3 -1.025 4 -0.526667 5 -0.385 6 -0.32 7 -0.254 8 -0.196667 9 -0.135 10 -0.102 11 -0.08 12 0.04 13 0.04.

14 0.0883333 15 0.1125 16 0.13 17 0.1375 18 0.142857 19 0.145556 20 0.15 21 0.155 22 0.16 23 0.175 24 0.175714 25 0.184 26 0.255 27 0.256 28 0.256667 29 0.258333 30 0.26

. 31 32 33 0.27 0.272 0.272222 34 0.277143 Page 2

. 36 35 37 0.29625 0.2925 0.3 38 0.30125 39 0.31 40 0.318 41 0.343333 42 0.41 43 0.455 44 0.47 45 0.496667 46 0.516667 47 0.645 48 0.755 49 0.798 50 1.04 51 1.14 52 1.21333 53 1.25 54 1.41 55 2.82 Sen's Estimator (Median Q) is 0.256667 Time Period Observations 1/13/2006 1 1/16/2006 1

. 2/13/2006 3/17/2006 4/18/2006 1

1 1

5/12/2006 1 7/18/2006 1 10/4/2006 1 1/2/2007 1 3/21/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b= 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is 0.1375 = 0(17)

Upper limit is 0.31 = Q(39) 0.1375 > 0 indicating an upward trend in data.

Page 3

Cs-1 37 C)

C:

0 0

L)

() (0. co C, (O 0 0,, I",-

0 00 C) 0) C) co 0 O 0 N C) C)

I'.1 CD, 0O C).

0 O0 (0 Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW120-3 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<4.88 U (2/17/2006 a) ND<2.41 U (1/15/2006 a) (4.88 - 2.41)/(2 - 1) 2.47 ND<4.6 U (3/17/2006 a) ND<2.41 U (1/15/2006 a) (4.6- 2.41)/(3 - 1) 1.095 ND<3.93 U (4/12/2006 a) ND<2.41 U (1/15/2006 a) (3.93 - 2.41)/(4 - 1) 0.506667 ND<7.2 OK (5/12/2006 a) ND<2.41 U (1/15/2006 a) (7.2- 2.41)/(5 - 1) 1.1975 ND<4.45 OK (7/18/2006 a) ND<2.41 U (1/15/2006 a) (4.45 - 2.41)/(6 - 1) 0.408 ND<3.67 OK (10/10/2006 a) ND<2.41 U (1/15/2006 a) (3.67 - 2.41)/(7 - 1) 0.21 ND<3.35 OK (1/4/2007 a) ND<2.41 U (1/15/2006 a) (3.35 - 2.41)/(8 - 1) 0.134286 ND<2.7 OK (3/20/2007 -) ND<2.41 U (1/15/2006 a). (2.7 - 2.41)/(9 - 1) 0.03625 ND<3.53 OK (6/12/2007 a) ND<2.41 U (1/15/2006 a) (3.53 - 2.41)/(10 - 1) 0.124444 ND<4.6 U (3/17/2006 a) ND<4.88 U (2/17/2006 a) (4.6 - 4.88)/(3 - 2) -0.28 ND<3.93 U (4/12/2006 a) ND<4.88 U (2/17/2006 a) (3.93 - 4.88)/(4 - 2) -0.475 ND<7.2 OK (5/12/2006 a) ND<4.88 U (2/17/2006 a) (7.2 - 4.88)/(5 - 2) 0.773333 ND<4.45 OK (7/18/2006 a) ND<4.88 U (2/17/2006 a) (4.45 - 4.88)/(6- 2) -0.1075 ND<3.67 OK (10/10/2006 a) ND<4.88 U (2/17/2006 a) (3.67 - 4.88)/(7 - 2) -0.242 ND<3.35 OK (1/4/2007 a) ND<4.88 U (2/17/2006 a) (3.35 - 4.88)/(8 - 2)' -0.255 ND<2.7 OK (3/20/2007 -) ND<4.88 U (2/17/2006 a) (2.7 - 4.88)/(9 - 2) -0.311429 ND<3.53 OK (6/12/2007 a) ND<4.88 U (2/17/2006 a) (3.53 - 4.88)/(10- 2) -0.16875 ND<3.93 U (4/12/2006 a) ND<4.6 U (3/17/2006 a) (3.93 - 4.6)/(4 - 3) -0.67 ND<7.2 OK (5/12/2006 a) ND<4.6 U (3/17/2006 a) (7.2 - 4.6)/(5 - 3) 1.3 ND<4.45 OK (7/18/2006 a). ND<4.6 U (3/17/2006 a) (4.45 - 4.6)/(6 - 3) -0.05 ND<3.67 OK (10/10/2006 a) ND<4.6 U (3/17/2006 a) (3.67 - 4.6)/(7 - 3) -0.2325 ND<3.35 OK (1/4/2007 a) ND<4.6 U (3/17/2006 a) (3.35 - 4.6)/(8 - 3) -0.25 ND<2.7 OK (3/20/2007 -) ND<4.6 U (3/17/2006 a) (2.7 - 4.6)/(9 - 3) -0.316667 ND<3.53 OK (6/12/2007 a) ND<4.6 U (3/17/2006 a) (3.53 - 4.6)/(10 - 3) -0.152857 ND<7.2 OK (5/12/2006 a) ND<3.93 U (4/12/2006 a) (7.2 - 3.93)/(5 - 4) 3.27 ND<4.45 OK (7/18/2006 a) ND<3.93 U (4/12/2006 a) (4.45 - 3.93)/(6 - 4) 0.26 ND<3.67 OK (10/10/2006 a) ND<3.93 U (4/12/2006 a) (3.67 - 3.93)/(7 - 4) -0.0866667 ND<3.35 OK (1/4/2007 a) ND<3.93 U (4/12/2006 a) (3.35 - 3.93)/(8 - 4) -0.145 ND<2.7 OK (3/20/2007 -) ND<3.93 U (4/12/2006 a) (2.7 - 3.93)/(9 - 4) -0.246 ND<3.53 OK (6/12/2007 a) ND<3.93 U (4/12/2006 a) (3.53 - 3.93)/(10- 4) -0.0666667 ND<4.45 OK (7/18/2006 a) ND<7.2 OK (5/12/2006 a) (4.45 - 7.2)/(6 - 5) -2.75 ND<3.67 OK (10/10/2006 a) ND<7.2 OK (5/12/2006 a) (3.67 - 7.2)/(7 - 5) -1.765 ND<3.35 OK (1/4/2007 a) ND<7.2 OK (5/12/2006 a) (3.35 - 7.2)/(8 - 5) -1.28333 ND<2.7 OK (3/20/2007 -) ND<7.2 OK (5/12/2006 a) (2.7 - 7.2)/(9 - 5) -1.125 ND<3.53 OK (6/12/2007 a) ND<7.2 OK (5/12/2006 a) (3.53- 7.2)/(10 -5) -0.734 ND<3.67 OK (10/10/2006 a) ND<4.45 OK (7/18/2006 a) (3.67 - 4.45)/(7 - 6) -0.78 ND<3.35 OK (1/4/2007 a) ND<4.45 OK (7/18/2006 a) (3.35 - 4.45)/(8 - 6) -0.55 ND<2.7 OK (3/20/2007 -) ND<4.45 OK (7/18/2006 a) (2.7 - 4.45)/(9 - 6) -0.583333 ND<3.53 OK (6/12/2007 a) ND<4.45 OK (7/18/2006 a) (3.53 - 4.45)/(10 - 6) -0.23 ND<3.67 OK (10/10/2006 a)

ND<3.35 OK (1/4/2007 a) (3.35 - 3.67)/(8 - 7) -0.32 ND<2.7 OK (3/20/2007 -) ND<3.67 OK (10/10/2006 a) (2.7 - 3.67)/(9 - 7) -0.485 Page 1

ND<3.53 OK (6/12/2007 a) ND<3.67 OK (10/10/2006 a) (3.53- 3.67)/(10- 7) -0.0466667 ND<2.7 OK (3/20/2007 -) ND<3.35 OK (1/4/2007 a) (2.7 - 3.35)/(9 - 8) -0.65 ND<3.53 OK (6/12/2007 a) ND<3.35 OK (1/4/2007 a) (3.53 - 3.35)/(10 - 8) 0.09 ND<3.53 OK (6/12/2007 a) ND<2.7 OK (3/20/2007 ~) (3.53 - 2.7)/(10 - 9) 0.83 Number of 0 values = 45 Ordered 0 Values n 0 1 -2.75 2 -1.765 3 -1.28333 4 -1.125 5 -0.78 6 -0.734 7 -0.67 8 -0.65 9 -0.583333 10 -0.55 11 -0.485 12 -0.475 13 -0.32 14 -0.316667 15 -0.311429

. 16 17

-0.28

-0.255 18 -0.25 19 -0.246 20 -0.242 21 -0.2325 22 -0.23 23 -0.16875 24 -0.152857 25 -0.145 26 -0.1075 27 -0.0866667 28 -0.0666667 29 -0.05 30 -0.0466667 31 0.03625 32 0.09 33 0.124444 34 0.134286 35 0.21 36 0.26 37 0.408 38 0.506667 39 0.773333 40 0.83 41 1.095 42 1.1975 43 1.3 44 2.47 45 3.27 Page 2

Sen's Estimator (Median Q) is -0.16875 Time Period Observations 1/15/2006 1 2/17/2006 1 3/17/2006 1 4/12/2006 1 5/12/2006 1 7/18/2006 1 10/10/2006 1 1/4/2007 1 3/20/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 0=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

. C = 18.39 M1 = (45- 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.32 = Q(13)

Upper limit is 0.124444 = Q(33)

-0.32 < 0 < 0.124444 indicating no trend in data.

Page 3

Cs-1 37 Time-Series Graph C61 4-

'31 tI.

o=

ý2 Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW120-4 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.27 U (2/24/2006 a) ND<1.96 U (1/15/2006 a) (3.27- 1.96)/(2 - 1) 1.31 ND<3.36 U (3/17/2006 a) ND<1.96 U (1/15/2006 a) (3.36 - 1.96)/(3 - 1) 0.7 ND<5.41 U (4/14/2006 a) ND<1.96 U (1/15/2006 a) (5.41 - 1.96)/(4 - 1) 1.15 ND<7.98 OK (5/12/2006 a) ND<1.96 U (1/15/2006 a) (7.98 - 1.96)/(5 - 1) 1.505 ND<3.35 OK (7/10/2006 a) ND<1.96 U (1/15/2006 a) (3.35- 1.96)/(6 - 1) 0.278 ND<3.52 OK (10/10/2006 a) ND<1.96 U (1/15/2006 a) (3.52 - 1.96)/(7 - 1) 0.26 ND<3.42 OK (1/5/2007 a) ND<1.96 U (1/15/2006 a) (3.42- 1.96)/(8 - 1) 0.208571 ND<2.82 OK (3/20/2007 a) ND<1.96 U (1/15/2006 a) (2.82 - 1.96)/(9 - 1) 0.1075 ND<3.33 OK (6/13/2007 a) ND<1.96 U (1/15/2006 a) (3.33 - 1.96)/(10 - 1) 0.152222 ND<3.36 U (3/17/2006 a) ND<3.27 U (2/24/2006 a) (3.36 - 3.27)/(3 - 2) 0.09 ND<5.41 U (4/14/2006 a) ND<3.27 U (2/24/2006 a) (5.41 - 3.27)/(4 - 2) 1.07 ND<7.98 OK (5/12/2006 a) ND<3.27 U (2/24/2006 a) (7.98 - 3.27)/(5 - 2) 1.57 ND<3.35 OK (7/10/2006 a) ND<3.27 U (2/24/2006 a) (3.35 - 3.27)/(6 - 2) 0.02 ND<3.52 OK (10/10/2006 a) ND<3.27 U (2/24/2006 a) (3.52 - 3.27)/(7 - 2) 0.05 ND<3.42 OK (1/5/2007 a) ND<3.27 U (2/24/2006 a) (3.42 - 3.27)/(8 - 2) 0.025 ND<2.82 OK (3/20/2007 a) ND<3.27 U (2/24/2006 a) (2.82 - 3.27)/(9 - 2) -0.0642857 ND<3.33 OK (6/13/2007 a) ND<3.27 U (2/24/2006 a) (3.33 - 3.27)/(10- 2) 0.0075 ND<5.41 U (4/14/2006 a) ND<3.36 U (3/17/2006 a) (5.41 - 3.36)/(4 - 3) 2.05 ND<7.98 OK (5/12/2006 a) ND<3.36 U (3/17/2006 a) (7.98 - 3.36)/(5 - 3) 2.31 ND<3.35 OK (7/10/2006 a) ND<3.36 U (3/17/2006 a) (3.35 - 3.36)/(6 - 3) -0.00333333 ND<3.52 OK (10/10/2006 a) ND<3.36 U (3/17/2006 a) (3.52 - 3.36)/(7 - 3) 0.04 ND<3.42 OK (1/5/2007 a) ND<3.36 U (3/17/2006 a) (3.42 - 3.36)/(8 - 3) 0.012 ND<2.82 OK (3/20/2007 a) ND<3.36 U (3/17/2006 a) (2.82 - 3.36)/(9 - 3) -0.09 ND<3.33 OK (6/13/2007 a) ND<3.36 U (3/17/2006 a) (3.33 - 3.36)/(10- 3) -0.00428571 ND<7.98 OK (5/12/2006 a) ND<5.41 U (4/14/2006 a) (7.98 - 5.41)/(5 - 4) 2.57 ND<3.35 OK (7/10/2006 a) ND<5.41 U (4/14/2006 a) (3.35 - 5.41)/(6- 4) -1.03 ND<3.52 OK (10/10/2006 a) ND<5.41 U (4/14/2006 a) (3.52 - 5.41)/(7 - 4) -0.63 ND<3.42 OK (1/5/2007 a) ND<5.41 U (4/14/2006 a) (3.42 - 5.41)/(8- 4) -0.4975.

ND<2.82 OK (3/20/2007 a) ND<5.41 U (4/14/2006 a) (2.82 - 5.41)/(9 -4) -0.518 ND<3.33 OK (6/13/2007 a) ND<5.41 U (4/14/2006 a) (3.33 - 5.41)/(10 - 4) -0.346667 ND<3.35 OK (7/10/2006 a) ND<7.98 OK (5/12/2006 a) (3.35 - 7.98)/(6 - 5) -4.63 ND<3.52 OK (10/10/2006 a) ND<7.98 OK (5/12/2006 a) (3.52 - 7.98)/(7 - 5) -2.23 ND<3.42 OK (1/5/2007 a) ND<7.98 OK (5/12/2006 a) (3.42 - 7.98)/(8 - 5) -1.52 ND<2.82 OK (3/20/2007 a) ND<7.98 OK (5/12/2006 a) (2.82 - 7.98)/(9 - 5) -1.29 ND<3.33 OK (6/13/2007 a) ND<7.98 OK (5/12/2006 a) (3.33 - 7.98)/(10 - 5) -0.93 ND<3.52 OK (10/10/2006 a) ND<3.35 OK (7/10/2006 a) (3.52 - 3.35)/(7 - 6) 0.17 ND<3.42 OK (1/5/2007 a) ND.ý3.35 OK (7/10/2006 a) (3.42 - 3.35)/(8 - 6) 0.035 ND<2.82 OK (3/20/2007 a) ND<3.35 OK (7/10/2006 a) (2.82 - 3.35)/(9 - 6) -0.176667 ND<3.33 OK (6/13/2007 a) ND<3.35 OK (7/10/2006 a) (3.33 - 3.35)/(10 - 6) -0.005 ND<3.42 OK (1/5/2007 a) ND<3.52 OK (10/10/2006 a) (3.42 - 3.52)/(8 - 7) -0.1 ND<2.82 OK (3/20/2007 a) ND<3.52 OK (10/10/2006 a) (2.82 - 3.52)/(9 - 7) -0.35 Page 1

ND<3.33 OK (6/13/2007 a) ND<3.52 OK (10/10/2006 a) (3.33 - 3.52)/(10- 7) -0.0633333 ND<2.82 OK (3/20/2007 a) ND<3.42 OK (1/5/2007 a) (2.82 - 3.42)/(9 - 8) -0.6 ND<3.33 OK (6/13/2007 a) ND<3.42 OK (1/5/2007 a) (3.33 - 3.42)/(10- 8) -0.045 ND<3.33 OK (6/13/2007 a) ND<2.82 OK (3/20/2007 a) (3.33 - 2.82)/(10- 9) 0.51 Number of Q values = 45 Ordered o Values n Q 1 -4.63 2 -2.23 3 -1.52 4 -1.29 5 -1.03 6 -0.93 7 -0.63 8 -0.6 9 -0.518 10 -0.4975 11 -0.35 12 -0.346667 13 -0.176667 14 -0.1

. 15 16 17

-0.09

-0.0642857

-0.0633333 18 -0.045 19 -0.005 20 -0.00428571 21 -0.00333333 22 0.0075 23 0.012 24 0.02 25 0.025 26 0.035 27 0.04 28 0.05 29 0.09 30 0.1075 31 0.152222 32 0.17 33 0.208571 34 0.26 35 0.278 36 0.51 37 0.7 38 1.07 39 1.15 40 1.31 41 1.505 42 1.57 43 2.05 44 2.31 45 2.57 Page 2

Sen's Estimator (Median Q) is 0.012 Time Period Observations 1/15/2006 1 2/24/2006 1 3/17/2006 1 4/14/2006 1 5/12/2006 1 7/10/2006 1 10/10/2006 1 1/5/2007 1 3/20/2007 1 6/13/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a =2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485

. C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.176667 = Q(13)

Upper limit is 0.208571 = Q(33)

-0. 176667 < 0 < 0.208571 indicating no trend in data.

Page 3

Cs-I 37 Time-Series Graph of MW120-5 5

4 0

SaIl Date Page 1

O Sen's Parameter:Slope Analysis Cs-137 Location: MW120-5 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a ND<3.7 U (2/24/2006 a) ND<2.23 U (1/15/2006 a) (3.7- 2.23)/(2 - 1) 1.47 ND<3.29 U (3/20/2006 a) ND<2.23 U (1/15/2006 a) (3.29- 2.23)/(3 - 1) 0.53 ND<3.1 U (4/18/2006 a) ND<2.23 U (1/15/2006 a) (3.1 - 2.23)/(4 - 1) 0.29 ND<3.57 U (4/19/2006 a) ND<2.23 U (1/15/2006 a) (3.57 - 2.23)/(5 - 1) 0.335 ND<5.15 OK (5/12/2006 -) ND<2.23 U (1/15/2006 a) (5.15- 2.23)/(6 - 1) 0.584 ND<3.44 OK (7/10/2006 a) ND<2.23 U (1/15/2006 a) (3.44 - 2.23)/(7 - 1) 0.201667 ND<3.38 OK (10/10/2006 a) ND<2.23 U (1/15/2006 a) (3.38- 2.23)/(8 - 1) 0.164286 ND<3.33 OK (1/4/2007 a) ND<2.23 U (1/15/2006 a) (3.33 - 2.23)/(9 - 1) 0.1375 ND<2.3 OK (3/20/2007 a) ND<2.23 U (1/15/2006 a) (2.3 - 2.23)/(10 - 1) 0.00777778 ND<3.17 OK (6/13/2007 a) ND<2.23 U (1/15/2006 a) (3.17 - 2.23)/(11 - 1) 0.094 ND<3.29 U (3/20/2006 a) ND<3.7 U (2/24/2006 a) (3.29 - 3.7)/(3 - 2) -0.41 ND<3.1 U (4/18/2006 a) ND<3.7 U (2/24/2006 a) (3.1 - 3.7)/(4 - 2) -0.3 ND<3.57 U (4/19/2006 a) ND<3.7 U (2/24/2006 a) (3.57 - 3.7)/(5 - 2) -0.0433333 ND<5.15 OK (5/12/2006 -) ND<3.7 U (2/24/2006 a) (5.15- 3.7)/(6 - 2) 0.3625 ND<3.44 OK (7/10/2006 a) ND<3.7 U (2/24/2006 a) (3.44 - 3.7)/(7 - 2) -0.052

. ND<3.38 OK (10/10/2006 a)

ND<3.33 OK (1/4/2007 a)

ND<2.3 OK (3/20/2007 a)

ND<3.7 ND<3.7 ND<3.7 U (2/24/2006 U (2/24/2006 U (2/24/2006 a) a)

a)

(3.38 - 3.7)/(8 - 2)

(3.33 - 3.7)/(9 - 2)

(2.3- 3.7)/(10- 2)

-0.0533333

-0.0528571

-0.175 ND<3.17 OK (6/13/2007 a) ND<3.7 U.(2/24/2006 a) (3.17 - 3.7)/(111 - 2) -0.0588889 ND<3.1 U (4/18/2006 a) ND<3.29 U (3/20/2006 a) (3.1 - 3.29)/(4 - 3) -0.19 ND<3.57 U (4/19/2006 a) ND<3.29 U (3/20/2006 a) (3.57 - 3.29)/(5 - 3) 0.14 ND<5.15 OK (5/12/2006 -) ND<3.29 U (3/20/2006 a) (5.15 - 3.29)/(6 - 3) 0.62 ND<3.44 OK (7/10/2006 a) ND<3.29 U (3/20/2006 a) (3.44 - 3.29)/(7 - 3) 0.0375 ND<3.38 OK (10/10/2006 a) ND<3.29 U (3/20/2006 a) (3.38 - 3.29)/(8 - 3) 0.018 ND<3.33 OK (1/4/2007 a) ND<3.29 U (3/20/2006 a) (3.33 - 3.29)/(9 - 3) 0.00666667 ND<2.3 OK (3/20/2007 a) ND<3.29 U (3/20/2006 a) (2.3 - 3.29)/(10 - 3) -0.141429 ND<3.17 OK (6/13/2007 a) ND<3.29 U (3/20/2006 a) (3.17- 3.29)/(11 - 3) -0.015 ND<3.57 U (4/19/2006 a) ND<3.1 U (4/18/2006 a) (3.57 - 3.1)/(5- 4) 0.47 ND<5.15 OK (5/12/2006 -) ND<3.1 U (4/18/2006 a) (5.15- 3.1)/(6 - 4) 1.025 ND<3.44 OK (7/10/2006 a) ND<3.1 U (4/18/2006 a) (3.44- 3.1)/(7- 4) 0.113333 ND<3.38 OK (10/10/2006 a) ND<3.1 U (4/18/2006 a) (3.38- 3.1)/(8- 4) 0.07 ND<3.33 OK (1/4/2007 a) ND<3.1 U (4/18/2006 a) (3.33 - 3.1)/(9- 4) 0.046 ND<2.3 OK (3/20/2007 a) ND<3.1 U (4/18/2006 a) (2.3 - 3.1)/(10 - 4) -0.133333 ND<3.17 OK (6/13/2007 a) ND<3.1 U (4/18/2006 a) (3.17 - 3.1)/(11 - 4) 0.01 ND<5.15 OK (5/12/2006 -) ND<3.57 U (4/19/2006 a) (5.15 - 3.57)/(6 - 5) 1.58 ND<3.44 OK (7/10/2006 a) ND<3.57 U (4/19/2006 a) (3.44 - 3.57)/(7 - 5) -0.065 ND<3.38 OK (10/10/2006 a) ND<3.57 U (4/19/2006 a) (3.38 - 3.57)/(8 - 5) -0.0633333 ND<3.33 OK (1/4/2007 a) ND<3.57 U (4/19/2006 a) (3.33 - 3.57)/(9 - 5) -0.06 ND<2.3 OK (3/20/2007 a) ND<3.57 U (4/19/2006 a) (2.3 - 3.57)/(10 - 5) -0.254 ND<3.17 OK (6/13/2007 a) ND<3.57 U (4/19/2006 a) (3.17- 3.57)/(11 - 5) -0.0666667

. ND<3.44 OK (7/10/2006 a)

ND<3.38 OK (10/10/2006 a)

ND<5.15 OK (5/12/2006 ~)

(3.44 - 5.15)/(7 - 6)

(3.38 - 5.15)/(8 - 6)

-1.71

-0.885 Page 1

OND<3.33 OK (1/4/2007 a)

ND<2.3 OK (3/20/2007 a)

ND<5.15 OK (5/12/2006 ~)

(3.33- 5.15)/(9 - 6)

(2.3- 5.15)/(10- 6)

-0.606667

-0.7125 ND<3.17 OK (6/13/2007 a) ND<5.15 OK (5/12/2006~) (3.17- 5.15)/(11 - 6) -0.396 ND<3.38 OK (10/10/2006 a) ND<3.44 OK (7/10/2006 a) (3.38 - 3.44)/(8 - 7) -0.06 ND<3.33 OK (1/4/2007 a) ND<3.44 OK (7/10/2006 a) (3.33 - 3.44)/(9 - 7) -0.055 ND<2.3 OK (3/20/2007 a) ND<3.44 OK (7/10/2006 a) (2.3 - 3.44)/(10 - 7) -0.38 ND<3.17 OK (6/13/2007 a) ND<3.44 OK (7/10/2006 a) (3.17- 3.44)/(11 - 7) -0.0675 ND<3.33 OK (1/4/2007 a) ND<3.38 OK (10/10/2006 a) (3.33 - 3.38)/(9 - 8) -0.05 ND<2.3 OK (3/20/2007 a) ND<3.38 0K-(10/10/2006 a) (2.3 - 3.38)/(10- 8) -0.54 ND<3.17 OK (6/13/2007 a) ND<3.38 OK (10/10/2006 a) (3.17- 3.38)/(11 - 8) -0.07 ND<3.33 OK (1/4/2007 a) (2.3- 3.33)/(10- 9)

ND<2.3 OK (3/20/2007 a) -1.03 ND<3.17 OK (6/13/2007 a) ND<3.33 OK (1/4/2007 a) (3.17 - 3.33)/(11 - 9) -0.08 ND<3.17 OK (6/13/2007 a) ND<2.3 OK (3/20/2007 a) (3.17- 2.3)/(11 - 10) 0.87 Number of 0 values = 55 Ordered Q Values n Q 1 -1.71 2 -1.03 3 -0.885 4 -0.7125 S6 5 7

-0.606667

-0.54

-0.41 8 -0.396 9 -0.38 10 -0.3 11 -0.254 12 -0.19 13 -0.175 14 -0.141429 15 -0.133333 16 -0.08 17 -0.07 18 -0.0675 19 -0.0666667

.20 -0.065 21 -0.0633333 22 -0.06 23 -0.06 24 -0.0588889 25 -0.055 26 -0.0533333 27 -0.0528571 28 -0.052 29 -0.05 30 -0.0433333

. 31 32 133

-0.015 0.00666667 0.00777778 34 0.01 Page 2

. 36 35 37 0.0375 0.018 0.046 38 0.07 39 0.094 40 0.113333 41 0.1375 42 0.14 43 0.164286 44 0.201667 45 0.29 46 0.335 47 0.3625 48 0.47 49 0.53 50 0.584 51 0.62 52 0.87 53 1.025 54 1.47 55 1.58 Sen's Estimator (Median Q) is -0.052 Time Period Observations 1/15/2006 1 2/24/2006 1

. 3/20/2006 4/18/2006 4/19/2006 1

1 1

5/12/2006 1 7/10/2006 1 10/10/2006 1 1/4/2007 1 3/20/2007 1 6/13/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is 70.07 = Q(17)

Upper limit is 0.094 = Q(39)

-0.07 < 0 < 0.094 indicating no trend in data.

Page 3

0.

Cs'1 37 Time-Series GraDh of MW121A-2 6

4 9

-J U

0.

C 0

0 C

0 0

I (0 (0 c( co CD I-0 0 0 0 0) 0 0 a (N N-0O (N C, (N Cq

(-

(N Sample Date Page 1

. Sen's Parameter:Slope Analysis Cs-137 Location: MW121A-2 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<2.95 U (2/24/2006 a) ND<1.97 U (1/15/2006 a) (2.95- 1.97)/(2 - 1) 0.9.8 ND<4.12 U (3/20/2006 a) ND<1.97 U (1/15/2006 a) (4.12- 1.97)/(3 - 1) 1.075 ND<3.42 U (4/19/2006 a) ND<1.97 U (1/15/2006 a) (3.42- 1.97)/(4 - 1) 0.483333 ND<5.16 OK (5/12/2006 a) ND<1.97 U (1/15/2006 a) (5.16- 1.97)/(5- 1) 0.7975 ND<3.48 OK (7/8/2006 a) ND<1.97 U (1/15/2006 a) (3.48- 1.97)/(6- 1) 0.302 ND<3.64 OK (10/19/2006 a) ND<1.97 U (1/15/2006 a) (3.64 - 1.97)/(7 - 1) 0.278333 ND<3.69 OK (1/2/2007 a) ND<1.97 U (1/15/2006 a) (3.69 - 1.97)/(8 - 1) 0.245714 ND<3.71 OK (3/20/2007 a) ND<1.97 U (1/15/2006 a) (3.71 - 1.97)/(9 - 1) 0.2175 ND<3.24 OK (4/10/2007 a) ND<1.97.U (1/15/2006 a) (3.24- 1.97)/(10 - 1) 0.141111 ND<3.42 OK (6/11/2007 a) ND<1.97 U (1/15/2006 a) (3.42- 1.97)/(11 -1) 0.145 ND<4.12 U (3/20/2006 a) ND<2.95 U (2/24/2006 a) (4.12 - 2.95)/(3 - 2) 1.17 ND<3.42 U (4/19/2006 a) ND<2.95 U (2/24/2006 a) (3.42 - 2.95)/(4 - 2) 0.235 ND<5.16 OK (5/12/2006 a) ND<2.95 U (2/24/2006 a) (5.16 - 2.95)/(5 - 2) 0.736667 ND<3.48 OK (7/8/2006 a) ND<2.95 U (2/24/2006 a) (3.48 - 2.95)/(6 - 2) 0.1325 ND<3.64 OK (10/19/2006 a) ND<2.95 U (2/24/2006 a) (3.64 - 2.95)/(7 - 2). 0.138

. ND<3.69 ND<3.71 ND<3.24 OK (1/2/2007 a)

OK (3/20/2007 a)

OK (4/10/2007 a)

ND<2.95 ND<2.95 ND<2.95 U (2/24/2006 U (2/24/2006 U (2/24/2006 a) a)

a)

(3.69 -

(3.71 -

(3.24-2.95)/(8 - 2) 2.95)/(9 - 2) 2.95)/(10 - 2) 0.123333 0.108571 0.03625 ND<3.42 OK (6/11/2007 a) ND<2.95 U (2/24/2006 a) (3.42 - 2.95)/(11 - 2) 0.0522222 ND<3.42 U (4/19/2006 a) ND<4.12 U (3/20/2006 a) (3.42- 4.12)/(4 - 3) -0.7 ND<5.16 OK (5/12/2006 a) ND<4.12 U (3/20/2006 a). (5.16- 4.12)/(5 - 3) 0.52 ND<3.48 OK (7/8/2006 a) ND<4.12 U (3/20/2006 a) (3.48 - 4.12)/(6 - 3) -0.213333 ND<3.64 OK (10/19/2006 a) ND<4.12 U (3/20/2006 a) (3.64 - 4.12)/(7 - 3) -0.12 ND<3.69 OK (1/2/2007 a) ND<4.12 U (3/20/2006 a) (3.69 - 4.12)/(8 - 3) -0.086 ND<3.71 OK (3/20/2007 a) ND<4.12 U (3/20/2006 a) (3.71 - 4.12)/(9 - 3) -0.0683333 ND<3.24 OK (4/10/2007 a) ND<4.12 U (3/20/2006 a) (3.24 - 4.12)/(10- 3) -0.125714 ND<3.42 OK (6/11/2007 a) ND<4.12 U (3/20/2006 a) (3.42 - 4.12)/(11 - 3) -0.0875 ND<5.16 OK (5/12/2006 a) ND<3.42 U (4/19/2006 a) (5.16 - 3.42)/(5- 4) 1.74 ND<3.48 OK (7/8/2006 a) ND<3.42 U (4/19/2006 a) (3.48 - 3.42)/(6 - 4) 0.03 ND<3.64 OK (10/19/2006 a) ND<3.42 U (4/19/2006 a) (3.64 - 3.42)/(7 - 4) 0.0733333 ND<3.69 OK (1/2/2007 a) ND<3.42 U (4/19/2006 a) (3.69 - 3.42)/(8 - 4) 0.0675 ND<3.71 OK (3/20/2007 a) ND<3.42 U (4/19/2006 a) (3.71 - 3.42)/(9 - 4) 0.058 ND<3.24 OK (4/10/2007 a) ND<3.42 U (4/19/2006 a) (3.24 - 3.42)/(10 - 4) -0.03 ND<3.42 OK (6/11/2007 a) ND<3.42 U (4/19/2006 a) (3.42 - 3.42)/(11 - 4) 0 ND<3.48 OK (7/8/2006 a) ND<5.16 OK (5/12/2006 a) (3.48 - 5.16)/(6 - 5) -1.68 ND<3.64 OK (10/19/2006 a) ND<5.16 OK (5/12/2006 a) (3.64- 5.16)/(7 - 5) -0.76 ND<3.69 OK (1/2/2007 a) ND<5.16 OK (5/12/2006 a) (3.69 - 5.16)/(8- 5) -0.49 ND<3.71 OK (3/20/2007 a) ND<5.16 OK (5/12/2006 a) (3.71 - 5.16)/(9 - 5) -0.3625 ND<3.24 OK (4/10/2007 a) ND<5.16 OK (5/12/2006 a) (3.24- 5.16)/(10- 5) -0.384 ND<3.42 OK (6/11/2007 a) ND<5.16 OK (5/12/2006 a) (3.42- 5.16)/(11 - 5) -0.29

. ND<3.64 OK (10/19/2006 a)

ND<3.69 OK (1/2/2007 a)

ND<3.48 OK (7/8/2006 a)

(3.64 - 3.48)/(7 - 6)

(3.69 - 3.48)/(8 - 6) 0.16 0.105 Page 1

ND<3.71 OK (3/20/2007 a) ND<3.48 OK (7/8/2006 a) (3.71 - 3.48)/(9 - 6) 0.0766667 ND<3.24 OK (4/10/2007 a) ND<3.48 OK (7/8/2006 a) (3.24- 3.48)/(10 -6) -0.06 ND<3.42 OK (6/11/2007 a) ND<3.48 OK (7/8/2006 a) (3.42 - 3.48)/(11 - 6) -0.012 ND<3.69 OK (1/2/2007 a) ND<3.64 OK (10/19/2006 a) (3.69 - 3.64)/(8 - 7) 0.05 ND<3.71 OK (3/20/2007 a) ND<3.64 OK (10/19/2006 a) (3.71 - 3.64)/(9 - 7) 0.035 ND<3.24 OK (4/10/2007 a) ND<3.64 OK (10/19/2006 a) (3.24 - 3.64)/(10- 7) -0.133333 ND<3.42 OK (6/11/2007 a) ND<3.64 OK (10/19/2006 a) (3.42 - 3.64)/(11 - 7) -0.055 ND<3.71 OK (3/20/2007 a) ND<3.69 OK (1/2/2007 a) (3.71 - 3.69)/(9 - 8) 0.02 ND<3.24 OK (4/10/2007 a) ND<3.69 OK (1/2/2007 a) (3.24 - 3.69)/(10 - 8) -0.225 ND<3.42 OK (6/11/2007 a) ND<3.69 OK (1/2/2007 a) (3.42 - 3.69)/(11 - 8) -0.09 ND<3.71 OK (3/20/2007 a) (3.24 - 3.71)/(10- 9)

ND<3.24 OK (4/10/2007 a) -0.47 ND<3.42 OK (6/11/2007 a) ND<3.71 OK (3/20/2007 a) (3.42 - 3.71)/(11 - 9) -0.145 ND<3.42 OK (6/11/2007 a) ND<3.24 OK (4/10/2007 a) (3.42 - 3.24)/(11 - 10) 0.18 Number of Q values = 55 Ordered Q Values n Q 1 -1.68 2 -0.76 3 -0.7 4 -0.49 5 .- 0.47 6 -0.384 7 -0.3625 8 -0.29 9 -0.225 10 -0.213333 11 -0.145 12 -0.133333 13 -0.125714 14 -0.12 15 -0.09 16 -0.0875 17 -0.086 18 -0.0683333 19 -0.06 20 -0.055 21 -0.03 22 -0.012 23 0 24 0.02 25 0.03 26 0.035 27 0.03625 28 0.05 29 0.0522222 30 0.058 31 0.0675 32 0.0733333 33 0.0766667 34 0.105 Page 2

. 36 35 37 0.123333 0.108571 0.1325 38 0.138 39 0.141111 40 0.145 41 0.16 42 0.18 43 0.2175 44 0.235 45 0.245714 46 0.278333 47 0.302 48 0.483333 49 0.52 50 0.736667 51 0.7975 52 0.98 53 1.075 54 1.17 55 1.74 Sen's Estimator (Median Q) is 0.05 Tied Group Value Members 1 3.42 2 Time Period Observations S 1/15/2006 1 2/24/2006 1 3/20/2006 1 4/19/2006 1 5/12/2006 1 7/8/2006 1 10/19/2006 1 1/2/2007 1 3/20/2007 1 4/10/2007 1 6/11/2007 1 There are 0 time periods with multiple data A =18 B=0 C=0 D=0 E=2 F=0 a = 2970 b = 8910 c = 220 Group Variance = 164 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.0644 M1 = (55 - 21.0644)/2.0 = 16.9678

. M2 = (55 + 21.0644)/2.0 + 1 = 39.0322 Lower limit is -0.086 = Q(17)

Upper limit is 0.141111 = Q(39)

-0.086 < 0 < 0.141111 indicating no trend in data.

Page 3

Cs-1 37 Time-Series Graph of MW121A-3 5

4I 0

Samdel Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW1 21 A-3 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.83 U (2/24/2006 a) ND<2.77 U (1/16/2006 a) (3.83 - 2.77)/(2 - 1) 1.06 ND<3.09 U (3/19/2006 a) ND<2.77 U (1/16/2006 a) (3.09 - 2.77)/(3 - 1) 0.16 ND<3.07 U (4/19/2006 a) ND<2.77 U (1/16/2006 a) (3.07 - 2.77)/(4 - 1) 0.1 ND<6 OK (5/12/2006 a) ND<2.77 U (1/16/2006 a) (6 - 2.77)/(5 - 1) 0.8075 ND<2.88 OK (7/10/2006 a) ND<2.77 U (1/16/2006 a) (2.88 - 2.77)/(6 - 1) 0.022 ND<3.18 OK (10/19/2006 a) ND<2.77 U (1/16/2006 a) (3.18- 2.77)/(7 - 1) 0.0683333 ND<3.15 OK (1/2/2007 a) ND<2.77 U (1/16/2006 a) (3.15- 2.77)/(8 - 1) 0.0542857 ND<3.33 OK (3/20/2007 a) ND<2.77 U (1/16/2006 a) (3.33 - 2.77)/(9 - 1) 0.07 ND<3.76 OK (4/10/2007 a) ND<2.77 U (1/16/2006 a) (3.76 - 2.77)/(10 - 1) 0.11 ND<4.02 OK (6/11/2007 a) ND<2.77 U (1/16/2006 a) (4.02 - 2.77)/(11 - 1) 0.125 ND<3.09 U (3/19/2006 a) ND<3.83 U (2/24/2006 a) (3.09 - 3.83)/(3 - 2) -0.74 ND<3.07 U (4/19/2006 a) ND<3.83 U (2/24/2006 a) (3.07 - 3.83)/(4 - 2) -0.38 ND<6 OK (5/12/2006 a) ND<3.83 U (2/24/2006 a) (6 - 3.83)/(5 - 2) 0.723333 ND<2.88 OK (7/10/2006 a) ND<3.83 U (2/24/2006 a) (2.88 - 3.83)/(6 - 2) -0.2375 ND<3.18 OK (10/19/2006 a) ND<3.83 U (2/24/2006 a) (3.18 - 3.83)/(7 - 2) -0.13

. ND<3.15 OK (1/2/2007 a)

ND<3.33 OK (3/20/2007 a)

ND<3.76 OK (4/10/2007 a)

ND<3.83 ND<3.83 ND<3.83 U (2/24/2006 U (2/24/2006 U (2/24/2006 a) a)

a)

(3.15 - 3.83)/(8 - 2)

(3.33 - 3.83)/(9 - 2)

(3.76- 3.83)/(10 - 2)

-0.113333

-0.0714286

-0.00875 ND<4.02 OK (6/11/2007 a) ND<3.83 U (2/24/2006 a) (4.02 - 3.83)/(11 - 2) 0.0211111 ND<3.07 U (4/19/2006 a) ND<3.09 U (3/19/2006 a) (3.07 - 3.09)/(4 - 3) -0.02 ND<6 OK (5/12/2006 a) ND<3.09 U (3/19/2006 a) (6 - 3.09)/(5 - 3) 1.455 ND<2.88 OK (7/10/2006 a) ND<3.09 U (3/19/2006 a) (2.88 - 3.09)/(6 - 3) -0.07 ND<3.18 OK (10/19/2006 a) ND<3.09 U (3/19/2006 a) (3.18 - 3.09)/(7 - 3) 0.0225 ND<3.15 OK (1/2/2007 a) ND<3.09 U (3/19/2006 a) (3.15 - 3.09)/(8 - 3) 0.012 ND<3.33 OK (3/20/2007 a) ND<3.09 U (3/19/2006 a) (3.33 - 3.09)/(9 - 3) 0.04 ND<3.76 OK (4/10/2007 a) ND<3.09 U (3/19/2006 a) (3.76 - 3.09)/(10 - 3) 0.0957143 ND<4.02 OK (6/11/2007 a) ND<3.09 U (3/19/2006 a) (4.02 - 3.09)/(11 - 3) 0.11625 ND<6 OK (5/12/2006 a) ND<3.07 U (4/19/2006 a) (6 - 3.07)/(5 - 4) 2.93 ND<2.88 OK (7/10/2006 a) ND<3.07 U (4/19/2006 a) (2.88 - 3.07)/(6 - 4) -0.095 ND<3.18 OK (10/19/2006 a) ND<3.07 U (4/19/2006 a) (3.18- 3.07)/(7 - 4) 0.0366667 ND<3.15 OK (1/2/2007 a) ND<3.07 U (4/19/2006 a) (3.15 - 3.07)/(8 - 4) 0.02 ND<3.33 OK (3/20/2007 a) ND<3.07 U (4/19/2006 a) (3.33 - 3.07)/(9 - 4) 0.052 ND<3.76 OK (4/10/2007 a) ND<3.07 U (4/19/2006 a) (3.76 - 3.07)/(10- 4) 0.115 ND<4.02 OK (6/11/2007 a) ND<3.07 U (4/19/2006 a) (4.02 - 3.07)/(11 - 4) 0.135714 ND<2.88 OK (7/-10/2006 a) ND<6 OK (5/12/2006 a) (2.88 - 6)/(6 - 5) -3.12 ND<3.18 OK (10/19/2006 a) ND<6 OK (5/12/2006 a) (3.18- 6)/(7 - 5) -1.41 ND<3.15 OK (1/2/2007 a) ND<6 OK (5/12/2006 a) (3.15- 6)/(8- 5) -0.95 ND<3.33 OK (3/20/2007 a) ND<6 OK (5/12/2006 a) (3.33 - 6)/(9 - 5) -0.6675 ND<3.76 OK (4/10/2007 a) ND<6 OK (5/12/2006 a) (3.76 - 6)/(10 - 5) -0.448 ND<4.02 OK (6/11/2007 a) ND<6 OK (5/12/2006 a) (4.02 - 6)/(11 -5) -0.33

. ND<3.18 OK (10/19/2006 a)

ND<3.15 OK (1/2/2007 a)

ND<2.88 OK (7/10/2006 a)

(3.18- 2.88)/(7- 6)

(3.15- 2.88)/(8 - 6) 0.3 0.135 Page 1

ND<2.88 OK (7/10/2006 a) (3.33 - 2.88)/(9 - 6) 0.15 O ND<3.76 ND<3.33 OK (4/10/2007 (3/20/2007 a)

ND<4.02 OK (6/11/2007 a)

ND<2.88 OK (7/10/2006 a)

(3.76 - 2.88)/(10 - 6)

(4.02 - 2.88)/(11 - 6) 0.22 0.228 ND<3.15 OK (1/2/2007 a) ND<3.18 OK (10/19/2006 a) (3.15 -'3.18)/(8 - 7) -0.03 ND<3.33 OK (3/20/2007 a) ND<3.18 OK (10/19/2006 a) (3.33 - 3.18)/(9 - 7) 0.075 ND<3.76 OK (4/10/2007 a) ND<3.18 OK (10/19/2006 a) (3.76 - 3.18)/(10- 7) 0.193333 ND<4.02 OK (6/11/2007 a) ND<3.18 OK (10/19/2006 a) (4.02 - 3.18)/(11 - 7) 0.21 ND<3.33 OK (3/20/2007 a) ND<3.15 OK (1/2/2007 a) (3.33 - 3.15)/(9 - 8) 0.18 ND<3.76 OK (4/10/2007 a) ND<3.15 OK (1/2/2007 a) (3.76- 3.15)/(10- 8) 0.305 ND<4.02 OK (6/11/2007 a) ND<3.15 OK (1/2/2007 a) (4.02- 3.15)/(11 - 8) 0.29 (3.76 - 3.33)/(10 - 9) 0.43 ND<3.76 OK (4/10/2007 a) ND<3.33 OK (3/20/2007 a)

ND<4.02 OK (6/11/2007 a) ND<3.33 OK (3/20/2007 a) (4.02 - 3.33)/(11 - 9) 0.345 ND<4.02 OK (6/11/2007 a) ND<3.76 OK (4/10/2007 a) (4.02 - 3.76)/(11 - 10) 0.26 Number of Q values = 55 Ordered Q Values n Q 1 -3.12 2 -1.41

.3 -0.95 4 -0.74 5 -0.6675 6 -0.448 7 -0.38 8 -0.33 9 -0.2375 10 -0.13 11 -0.113333 12 -0.095 13 -0.0714286

.14 -0.07 15 -0.03 16 -0.02 17 -0.00875 18 0.012 19 0.02 20 0.0211111 21 0.022 22 0.0225 23 0.0366667

.24 0.04 25 0.052 26 0.0542857 27 0.0683333 28 0.07 29 0.075 30 0.0957143

. 31 32 33 0.1 0.11 0.115 34 0.11625 Page 2

. 36 35 37 0.135 0.125 0.135714 38 0.15 39 0.16 40 0.18 41 0.193333 42 0.21 43 0.22 44 0.228 45 0.26 46 0.29 47 0.3 48 0.305 49 0.345 50 0.43 51 0.723333 52 0.8075 53 1.06 54 1.455 55 2.93 Sen's Estimator (Median Q) is 0.07 Time Period Observations 1/16/2006 1 2/24/2006 1

. 3/19/2006 4/19/2006 5/12/2006 1

1 1

7/10/2006 1 10/19/2006 1 1/2/2007 1 3/20/2007 1 4/10/2007 1 6/11/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b =8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1.-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 =(55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.00875 = Q(17)

Upper limit is 0.16 = Q(39)

-0.00875 < 0 < 0.16 indicating no trend in data.

Page 3

Cs-I 37 Time-Series Graph of MW121A-4 4

Sa3 0 2t Sample Oate Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW1 21 A-4 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.63 U (2/24/2006 a) ND<2.31 U (1/19/2006 a) (3.63 - 2.31)/(2 - 1) 1.32 ND<3.03 U (3/19/2006 a) ND<2.31 U (1/19/2006 a) (3.03- 2.31)/(3 - 1) 0.36 2.38 U (4/19/2006 a) ND<2.31 U (1/19/2006 a) (2.38 - 2.31)/(4 - 1) 0.0233333 ND<4.8 OK (5/12/2006 ~) ND<2.31 U (1/19/2006 a) (4.8 - 2.31)/(5 - 1) 0.6225 ND<4.78 OK (7/18/2006 a) ND<2.31 U (1/19/2006 a) (4.78 - 2.31)/(6 - 1) 0.494 ND<3.21 OK (10/19/2006 a) ND<2.31 U (1/19/2006 a) (3.21 - 2.31)/(7 - 1) 0.15 ND<3.73 OK (1/5/2007 a) ND<2.31 U (1/19/2006 a) (3.73 - 2.31)/(8 - 1) 0.202857 ND<2.58 OK (3/20/2007 a) ND<2.31 U (1/19/2006 a) (2.58 - 2.31)/(9 - 1) 0.03375 ND<4.34 OK (4/10/2007 a) ND<2.31 U (1/19/2006 a) (4.34 - 2.31)/(10 - 1) 0.225556 ND<2.8 OK (6/11/2007 a) ND<2.31 U (1/19/2006 a) (2.8- 2.31)/(11 - 1) 0.049 ND<3.03 U (3/19/2006 a) ND<3.63 U (2/24/2006 a) (3.03 - 3.63)/(3 - 2) -0.6 2.38 U (4/19/2006 a) ND<3.63 U (2/24/2006 a) (2.38 - 3.63)/(4 - 2) -0.625 ND<4.8 OK (5/12/2006 ~) ND<3.63 U (2/24/2006 a) (4.8 - 3.63)/(5 - 2) 0.39 ND<4.78 OK (7/18/2006 a) ND<3.63 U (2/24/2006 a) (4.78 - 3.63)/(6 - 2) 0.2875 ND<3.21 OK (10/19/2006 a) ND<3.63 U (2/24/2006 a) (3.21 - 3.63)/(7 - 2) -0.084

. ND<3.73OK (1/5/2007 a)

ND<2.58 OK (3/20/2007 a)

ND<4.34 OK (4/10/2007 a)

ND<3.63 ND<3.63 ND<3.63 U (2/24/2006 U (2/24/2006 U (2/24/2006 a) a)

a)

(3.73 - 3.63)/(8 - 2)

(2.58 - 3.63)/(9 - 2)

(4.34 - 3.63)/(10- 2) 0.0166667

-0.15 0.08875 ND<2.8 OK (6/11/2007 a) ND<3.63 U (2/24/2006 a) (2.8 - 3.63)/(11 - 2) -0.0922222 2.38 U (4/19/2006 a) ND<3.03 U (3/19/2006 a) (2.38 - 3.03)/(4 - 3) -0.65 ND<4.8 OK (5/12/2006 ~) ND<3.03 U (3/19/2006 a) (4.8 - 3.03)/(5 - 3) 0.885 ND<4.78 OK (7/18/2006 a) ND<3.03 U (3/19/2006 a) (4.78 - 3.03)/(6 - 3) 0.583333 ND<3.21 OK (10/19/2006 a) ND<3.03 U (3/19/2006 a) (3.21 - 3.03)/(7 - 3) 0.045 ND<3.73 OK (1/5/2007 a) ND<3.03 U (3/19/2006 a) (3.73 - 3.03)/(8 - 3) 0.14 ND<2.58 OK (3/20/2007 a) ND<3.03 U (3/19/2006 a) (2.58 - 3.03)/(9 - 3) -0.075 ND<4.34 OK(4/10/2007 a) ND<3.03 U (3/19/2006 a) (4.34 - 3.03)/(10- 3) 0.187143 ND<2.8 OK (6/11/2007 a) ND<3.03 U (3/19/2006 a) (2.8.- 3.03)/(11 - 3) -0.02875 ND<4.8 OK (5/12/2006 -) 2.38 U (4/19/2006 a) (4:8 - 2.38)/(5 - 4) 2.42 ND<4.78 OK (7/18/2006 a) 2.38 U (4/19/2006 a) (4.78 - 2.38)/(6 - 4) 1.2 ND<3.21 OK (10/19/2006 a) 2.38 U (4/19/2006 a) (3.21 - 2.38)/(7 - 4) 0.276667 ND<3.73 OK (1/5/2007 a) 2.38 U (4/19/2006 a) (3.73 - 2.38)/(8 - 4) 0.3375 ND<2.58 OK (3/20/2007 a) 2.38 U (4/19/2006 a) (2.58 - 2.38)/(9 - 4) 0.04 ND<4.34 OK (4/10/2007 a) 2.38 U (4/19/2006 a) (4.34 -2.38)/(10 - 4) 0.326667 ND<2.8 OK (6/11/2007 a) 2.38 U (4/19/2006 a) (2.8 - 2.38)/(11 - 4) 0.06 ND<4.78 OK (7/18/2006 a) ND<4.8 OK (5/12/2006 ~) (4.78 - 4.8)/(6 - 5) -0.02 ND<3.21 OK (10/19/2006 a) ND<4.8 OK (5/12/2006 ~) (3.21 - 4.8)/(7 - 5) -0.795 ND<3.73 OK (1/5/2007 a) ND<4.8 OK (5/12/2006 ~) (3.73 - 4.8)/(8 - 5) -0.356667 ND<2.58 OK (3/20/2007 a) ND<4.8 OK (5/12/2006 ~) (2.58 - 4.8)/(9 - 5) -0.555 ND<4.34 OK (4/10/2007 a) ND<4.8 OK (5/12/2006 ~) (4.34 - 4.8)/(10 - 5) -0.092 ND<2.8 OK (6/11/2007 a) ND<4.8 OK (5/12/2006 ~) (2.8 - 4.8)/(11 - 5) -0.333333

. ND<3.21 OK (10/19/2006 a)

ND<3.73 OK (1/5/2007 a)

ND<4.78 OK (7/18/2006 a)

(3.21 - 4.78)/(7 - 6)

(3.73 - 4.78)/(8 - 6)

-1.57

-0.525 Page 1

ND<4.78 OK (7/18/2006 a) (2.58 - 4.78)/(9 - 6) -0.733333 O ND<4.34 ND<2.58 OK (4/10/2007 (3/20/2007 a) ND<4.78 OK (7/18/2006 a) (4.34 - 4.78)/(10 - 6) -0.11 ND<2.8 OK (6/11/2007 a) ND<4.78 OK (7/18/2006 a) (2.8 - 4.78)/(11 - 6) -0.396 ND<3.73 OK (1/5/2007 a) ND<3.21 OK (10/19/2006 a) (3.73 - 3.21)/(8- 7) 0.52 ND<2.58 OK (3/20/2007 a) ND<3.21 OK (10/19/2006 a) (2.58 - 3.21)/(9- 7) -0.315 ND<4.34 OK (4/10/2007 a) ND<3.21 OK (10/19/2006 a) (4.34 - 3.21 )/(10- 7) 0.376667 ND<2.8 OK (6/11/2007 a) ND<3.21 OK (10/19/2006 a) (2.8- 3.21)/(11 - 7) -0.1025 ND<2.58 OK (3/20/2007 a) ND<3.73 OK (1/5/2007 a) (2.58 - 3.73)/(9 - 8) -1.15 ND<4.34 OK (4/10/2007 a) ND<3.73 OK (1/5/2007 a) (4.34 - 3.73)/(10- 8) 0.305 ND<2.8 OK (6/11/2007 a) ND<3.73 OK (1/5/2007 a) (2.8 - 3.73)/(11 - 8) -0.31 ND<4.34 OK (4/10/2007 a) ND<2.58 OK (3/20/2007 a) (4.34- 2.58)/(10- 9) 1.76 ND<2.8 OK (6/11/2007 a) ND<2.58 OK (3/20/2007 a) (2.8 - 2.58)/(11 - 9) 0.11 ND<2.8 OK (6/11/2007 a) ND<4.34 OK (4/10/2007 a) (2.8 - 4.34)/(11 - 10) -1.54 Number of Q values = 55 Ordered o Values n Q 1 -1.57 2 -1.54 3 -1.15 4 -0.795 5 -0.733333 6 -0.65 7 -0.625 8 -0.6 9 -0.555 10 -0.525 11 -0.396 12 -0.356667 13 -0.333333 14 -0.315 15 -0.31 16 -0.15 17 -0.11 18 -0.1025 19 -0.0922222 20 -0.092 21 -0.084 22 -0.075 23 -0.02875 24 -0.02 25 0.0166667 26 0.0233333 27 0.03375 28 0.04 29 0.045 30 0.049

. 31 32 33 0.06 0.08875 0.11 34 0.14 Page 2

O 35 36 0.187143 0.15 37 0.202857 38 0.225556 39 0.276667 40 0.2875 41 0.305 42 0.326667 43 0.3375 44 0.36 45 0.376667 46 0.39 47 0.494 48 0.52 49 0.583333 50 0.6225 51 0.885 52 1.2 53 1.32 54 1.76 55 2.42 Sen's Estimator (Median Q) is 0.04 Time Period Observations 1/19/2006 1 2/24/2006 1 3/19/2006 1 4/19/2006 1 5/12/2006 1 7/18/2006 1 10/19/2006 1 1/5/2007 1 3/20/2007 1 4/10/2007 1 6/11/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D =0 E=0 F =0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 21.1285 M1 = (55- 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.11 = Q(17)

Upper limit is 0.276667 = Q(39)

-0.11 < 0 < 0.276667 indicating no trend in data.

Page 3

Cs-I 37 Cs-1 37 Time-Series Graph of MW121A-5 4

0i 2

0I Sp D SN N

N Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW121A-5 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k)' Q ND<3.65 U (2/24/2006 a) ND<2.53 U (1/16/2006 a) (3.65 - 2.53)/(2 - 1) 1.12 ND<3.53 U (3/19/2006 a) ND<2.53 U (1/16/2006 a) (3.53 - 2.53)/(3 - 1) 0.5 ND<3.59 U (4/18/2006 a) ND<2.53 U (1/16/2006 a) (3.59 - 2.53)/(4 - 1) 0.353333 ND<3.65 OK (5/19/2006 a) ND<2.53 U (1/16/2006 a) (3.65 - 2.53)/(5 - 1) 0.28 ND<4.2 OK (7/16/2006 a) ND<2.53 U (1/16/2006 a) (4.2 - 2.53)/(6 - 1) 0.334 N D<3.82 OK (10/19/2006 a) ND<2.53 U (1/16/2006 a) (3.82 - 2.53)/(7 - 1) 0.215 ND<2.5 OK (1/5/2007 a) ND<2.53 U (1/16/2006 a) (2.5- 2.53)/(8 - 1) -0.00428571 ND<3.59 OK (3/20/2007 a) ND<2.53 U (1/16/2006 a) (3.59 - 2.53)/(9 - 1) 0.1325 ND<3.14 OK (6/12/2007 a) ND<2.53 U (1/16/2006 a) (3.14- 2.53)/(10- 1) 0.0677778 ND<3.53 U (3/19/2006 a) ND<3.65 U (2/24/2006 a) (3.53 - 3.65)/(3 - 2) -0.12 ND<3.59 U (4/18/2006 a) ND<3.65 U (2/24/2006 a) (3.59 - 3.65)/(4 - 2) -0.03 ND<3.65 OK (5/19/2006 a) ND<3.65 U (2/24/2006 a) (3.65 - 3.65)/(5 - 2) 0 ND<4.2 OK (7/16/2006 a) ND<3.65 U (2/24/2006 a) (4.2 - 3.65)/(6 - 2) 0.1375 ND<3.82 OK (10/19/2006 a) ND<3.65 U (2/24/2006 a) (3.82 - 3.65)/(7 - 2) 0.034 ND<2.5 OK (1/5/2007 a) ND<3.65 U (2/24/2006 a) (2.5 - 3.65)/(8 - 2) -0.191667 ND<3.59 OK (3/20/2007 a) ND<3.65 U (2/24/2006 a) ,(3.59 - 3.65)/(9 - 2) -0.00857143 ND<3.14 OK (6/12/2007 a) ND<3.65 U (2/24/2006 a) (3.14- 3.65)/(10- 2) -0.06375 ND<3.59 U (4/18/2006 a) ND<3.53 U (3/19/2006 a) (3.59 - 3.53)/(4 - 3) 0.06 ND<3.65 OK (5/19/2006 a) ND<3.53 U (3/19/2006 a) (3.65 - 3.53)/(5 - 3) 0.06 ND<4.2 OK (7/16/2006 a) ND<3.53 U (3/19/2006 a) (4.2 - 3.53)/(6 - 3) 0.223333 ND<3.82 OK (10/19/2006 a) ND<3.53 U (3/19/2006 a) (3.82 - 3.53)/(7 - 3) 0.0725 ND<2.5 OK (1/5/2007 a) ND<3.53 U (3/19/2006 a) (2.5 - 3.53)/(8 - 3) -0.206 ND<3.59 OK (3/20/2007 a) ND<3.53 U (3/19/2006 a) (3.59 - 3.53)/(9 - 3) 0.01 ND<3.14 OK (6/12/2007 a) ND<3.53 U (3/19/2006 a) (3.14- 3.53)/(10- 3) -0.0557143 ND<3.65 OK (5/19/2006 a) ND<3.59 U (4/18/2006 a) (3.65 - 3.59)/(5 - 4) 0.06 ND<4.2 OK (7/16/2006 a) ND<3.59 U (4/18/2006 a) (4.2 - 3.59)/(6 - 4) 0.305 ND<3.82 OK (10/19/2006 a) ND<3.59 U (4/18/2006 a) (3.82 - 3.59)/(7 - 4) 0.0766667 ND<2.5 OK (1/5/2007 a) ND<3.59 U (4/18/2006 a) (2.5 - 3.59)/(8 - 4) -0.2725 ND<3.59 OK (3/20/2007 a) ND<3.59 U (4/18/2006 a) (3.59 - 3.59)/(9 - 4) 0 ND<3.14 OK (6/12/2007 a) ND<3.59 U (4/18/2006 a) (3.14- 3.59)/(10- 4) -0.075 ND<4.2 OK (7/16/2006 a) ND<3.65 OK (5/19/2006 a) (4.2 - 3.65)/(6 - 5) 0.55 ND<3.82 OK (10/19/2006 a) ND<3.65 OK (5/19/2006 a) (3.82 - 3.65)/(7 - 5) 0.085 ND<2.5 OK (1/5/2007 a) ND<3.65 OK (5/19/2006 a) (2.5 - 3.65)/(8 - 5) -0.383333 ND<3.59 OK (3/20/2007 a) ND<3.65 OK (5/19/2006 a) (3.59 - 3.65)/(9 - 5) -0.015 ND<3.14 OK (6/12/2007 a) ND<3.65 OK (5/19/2006 a) (3.14- 3.65)/(10 - 5) -0.102 ND<3.82 OK (10/19/2006 a) ND<4.2 OK (7/16/2006 a) (3.82 - 4.2)/(7 - 6) -0.38 ND<2.5 OK (1/5/2007 a) ND<4.2 OK (7/16/2006 a) (2.5 - 4.2)/(8 - 6) -0.85 ND<3.59 OK (3/20/2007 a) ND<4.2 OK (7/16/2006 a) (3.59 - 4.2)/(9 - 6) -0.203333 ND<3.14 OK (6/12/2007 a) ND<4.2 OK (7/16/2006 a) J3.14 - 4.2)/(10- 6) -0.265 ND<3.82 OK (10/19/2006 a)

ND<2.5 OK (1/5/2007 a) (2.5 - 3.82)/(8 - 7) -1.32 ND<3.59 OK (3/20/2007 a) ND<3.82 OK (10/19/2006 a) (3.59 - 3.82)/(9 - 7) -0.115 Page 1

ND<3.14 OK (6/12/2007 a) ND<3.82 OK (10/19/2006 a) (3.14 - 3.82)/(10 - 7) -0.226667 ND<3.59 OK (3/20/2007 a) ND<2.5 OK (1/5/2007 a) (3.59 - 2.5)/(9 - 8) 1.09 ND<3.14 OK (6/12/2007 a) ND<2.5 OK (1/5/2007 a) (3.14- 2.5)/(10- 8) 0.32 ND<3.14 OK (6/12/2007 a) ND<3.59 OK (3/20/2007 a) (3..14 - 3.59)/(10 - 9) -0.45 Number of Q values = 45 Ordered Q Values n Q 1 -1.32 2 -0.85 3 -0.45 4 -0.383333 5 -0.38 6 -0.2725 7 -0.265 8 -0.226667 9 -0.206 10 -0.203333 11 -0.191667 12 -0.12 13 -0.115 14 -0.102 15 -0.075 16 -0.06375 17 -0.0557143 18 -0.03 19 -0.015 20 -0.00857143 21 -0.00428571 22 0 23 0 24 0.01 25 0.034 26 0.06 27 0.06 28 0.06 29 0.0677778 30 0.0725 31 0.0766667 32 0.085 33 0.1325 34 0.1375 35 0.215 36 0.223333 37 0.28 38 0.305 39 0.32 40 0.334 41 0.353333

. 42 43 44 0.5 0.55 1.09 45 1.12 Page 2

Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 3.65 2 2 3.59 2 Time Period Observations 1/16/2006 1 2/24/2006 1 3/19/2006 1 4/18/2006 1 5/19/2006 1 7/16/2006 1 10/19/2006 1 1/5/2007 1 3/20/2007 1 6/12/2007 1 There are 0 time periods with multiple data A =36 B =0 C ='o D=0 E=4 F=0 a = 2250

. b = 6480 c = 180 Group Variance = 123 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 18.2423 M1 = (45 - 18.2423)/2.0 = 13.3788 M2 = (45 + 18.2423)/2.0 + 1 = 32.6212 Lower limit is -0.115 = Q(13)

Upper limit is 0.1325 = Q(33)

-0.115 < 0 < 0.1325 indicating no trend in data.

Page 3

Cs-1 37 4

c-C) 3 CD (0 (0 (0 N-0 N--

0 0

0 (0 0C0 0 0 0CN CN 0 0 0 C) 0 0 0 (eN C,)

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW122D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.25 U (2/9/2006 a) 6.21 OK (1/10/2006 a) (3.25 - 6.21)/(2 - 1) -2.96 ND<3.75 U (3/20/2006 a) 6.21 OK (1/10/2006 a) (3.75 - 6.21)/(3 - 1) -1.23 ND<3.85 U (4/13/2006 a) 6.21 OK (1/10/2006 a) (3.85 - 6.21)/(4 - 1) -0.786667 ND<3.21 OK (5/4/2006 a) 6.21 OK (1/10/2006 a) (3.21 - 6.21)/(5 - 1) -0.75 ND<3.62 OK (7/10/2006 a) 6.21 OK (1/10/2006 a) (3.62 - 6.21)/(6 - 1) -0.518 ND<2.82 OK (10/6/2006 a) 6.21 OK (1/10/2006 a) (2.82 - 6.21)/(7 - 1) -0.565 ND<3.02 OK (1/4/2007 a) 6.21 OK (1/10/2006 a) (3.02 - 6.21)/(8 - 1) -0.455714 ND<2.42 OK (3/20/2007 a) 6.21 OK (1/10/2006 a) (2.42 - 6.21)/(9 - 1) -0.47375 ND<3.22 OK (6/11/2007 a) 6.21 OK (1/10/2006 a) (3.22 - 6.21)/(10 - 1) -0.332222 ND<3.75 U (3/20/2006 a) ND<3.25 U (2/9/2006 a) (3.75 - 3.25)/(3 - 2) 0.5 ND<3.85 U (4/13/2006 a) ND<3.25 U (2/9/2006 a) (3.85 - 3.25)/(4 - 2) 0.3 ND<3.21 OK (5/4/2006 a) ND<3.25 U (2/9/2006 a) (3.21 - 3.25)/(5 - 2) -0.0133333 ND<3.62 OK (7/10/2006 a) ND<3.25 U (2/9/2006 a) (3.62 - 3.25)/(6 - 2) 0.0925 ND<2.82 OK (10/6/2006 a) ND<3.25 U (2/9/2006 a) (2.82 - 3.25)/(7 - 2) -0.086 ND<3.02 OK (1/4/2007 a) ND<3.25 U (2/9/2006 a) (3.02 - 3.25)/(8 - 2) -0.0383333 ND<2.42 OK (3/20/2007 a) ND<3.25 U (2/9/2006 a) (2.42 - 3.25)/(9 - 2) -0.118571 ND<3.22 OK (6/11/2007 a) ND<3.25 U (2/9/2006 a) (3.22 - 3.25)/(10 - 2) -0.00375 ND<3.85 U (4/13/2006 a) ND<3.75 U (3/20/2006 a) (3.85 - 3.75)/(4 - 3) 0.1 ND<3.21 OK (5/4/2006 a) ND<3.75 U (3/20/2006 a) (3.21 - 3.75)/(5 - 3) -0.27 ND<3.62 OK (7/10/2006 a) ND<3.75 U (3/20/2006 a) (3.62 - 3.75)/(6 - 3) -0.0433333 ND<2.82 OK (10/6/2006 a) ND<3.75 U (3/20/2006 a) (2.82 - 3.75)/(7 - 3) -0.2325 ND<3.02 OK (1/4/2007 a) ND<3.75 U (3/20/2006 a) (3.02 - 3.75)/(8 - 3) -0.146 ND<2.42 OK (3/20/2007 a) ND<3.75 U (3/20/2006 a) (2.42 - 3.75)/(9 - 3) -0.221667 ND<3.22 OK (6/11/2007 a) ND<3.75 U (3/20/2006 a) (3.22 - 3.75)/(10- 3) -0.0757143 ND<3.21 OK (5/4/2006 a) ND<3.85 U (4/13/2006 a) (3.21 - 3.85)/(5 - 4) -0.64 ND<3.62 OK (7/10/2006 a) ND<3.85 U (4/13/2006 a) (3.62 - 3.85)/(6 - 4) -0.115 ND<2.82 OK (10/6/2006 a) ND<3.85 U (4/13/2006 a) (2.82 - 3.85)/(7 - 4) -0.343333 ND<3.02 OK (1/4/2007 a) ND<3.85 U (4/13/2006 a) (3.02 - 3.85)/(8 - 4) -0.2075 ND<2.42 OK (3/20/2007 a) ND<3.85 U (4/13/2006 a) (2.42 - 3.85)/(9 - 4) -0.286 ND<3.22 OK (6/11/2007 a) ND<3.85 U (4/13/2006 a) (3.22 - 3.85)/(10- 4) -0.105 ND<3.62 OK (7/10/2006 a) ND<3.21 OK (5/4/2006 a) (3.62 - 3.21)/(6 - 5) 0.41 ND<2.82 OK (10/6/2006 a) ND<3.21 OK (5/4/2006 a) (2.82 - 3.21.)/(7 - 5) -0.195 ND<3.02 OK (1/4/2007 a) ND<3.21 OK (5/4/2006 a) (3.02 - 3.21)/(8 - 5) -0.0633333 ND<2.42 OK (3/20/2007 a) ND<3.21 OK (5/4/2006 a) (2.42 - 3.21)/(9 - 5) -0.1975 ND<3.22 OK (6/11/2007 a) ND<3.21 OK (5/4/2006 a) (3.22 - 3.21)/(10 - 5) 0.002 ND<2.82 OK (10/6/2006 a) ND<3.62 OK (7/10/2006 a) (2.82 - 3.62)/(7 - 6) -0.8 ND<3.02 OK (1/4/2007 a) ND<3.62 OK (7/10/2006 a) (3.02 - 3.62)/(8 - 6) -0.3 ND<2.42 OK (3/20/2007 a) ND<3.62 OK (7/10/2006 a) (2.42 - 3.62)/(9 - 6) -0.4 ND<3.22 OK (6/11/2007 a) ND<3.62 OK (7/10/2006 a) (3.22 - 3.62)/(10- 6) -0.1 ND<3.02 OK (1/4/2007 a) ND<2.82 OK (10/6/2006 a) (3.02 - 2.82)/(8 - 7) 0.2 ND<2.42 OK (3/20/2007 a) ND<2.82 OK (10/6/2006 a) (2.42 - 2.82)/(9 - 7) -0.2 Page 1

ND<3.22 OK (6/11/2007 a) N D<2.82 OK (10/6/2006 a) (3.22 - 2.82)/(10 - 7) 0.133333 ND<2.42 OK (3/20/2007 a) ND<3.02 OK (1/4/2007 a) (2.42 - 3.02)/(9 - 8) -0.6 ND<3.22 OK (6/11/2007 a) ND<3.02 OK (1/4/2007 a) (3.22 - 3.02)/(10 - 8) 0.1 ND<3.22 OK (6/11/2007 a) ND<2.42 OK (3/20/2007 a) (3.22 - 2.42)/(10 - 9) 0.8 Number of Q values = 45 Ordered 0 Values n Q 1 -2.96 2 -1.23 3 -0.8 4 -0.786667 5 -0.75 6 -0.64 7 -0.6 8 -0.565 9 -0.518 10 -0.47375 11 -0.455714 12 -0.4 13 -0.343333 14 -0.332222 15 -0.3 O 16 -0.286 17 -0.27 18 -0.2325 19 -0.221667 20 -0.2075 21 -0.2 22 -0.1975 23 -0.195 24 -0.146 25 -0.118571 26 -0.115 27 -0.105 28 -0.1 29 -0.086 30 -0.0757143 31 -0.0633333 32 -0.0433333 33 -0.0383333 34 -0.0133333 35 -0.00375 36 0.002 37 0.0925 38 0.1 39 0.1 40 0.133333 41 0.2 42 0.3 43 0.41 44 0.5 45 0.8 Page 2

Sen's Estimator (Median Q) is -0.195 Time Period Observations 1/10/2006 1 2/9/2006 1 3/20/2006 1 4/13/2006 1 5/4/2006 1 7/10/2006 1 10/6/2006 1 1/4/2007 1 3/20/2007 1 6/11/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E.= 0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.343333 = Q(13)

Upper limit is -0.0383333 = Q(33)

-0.0383333 < 0 indicating a downward trend in data.

Page 3

Cs-I 37 Time-Series Graph of MW122S 6

5 4

0 C..

C 0

L) 2!

0 (o 0o w C)o 0 00000 C> C) 0C) (D0 0) 0O O Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW122S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<2.51 U (2/9/2006.a) ND<3.02 U (1/16/2006 a) (2.51 - 3.02)/(2 - 1) -0.51 2.92 U (4/10/2006 a) ND<3.02 U (1/16/2006 a) (2.92 - 3.02)/(3 - 1) -0.05 ND<4.31 U (4/19/2006 a) ND<3.02 U (1/16/2006 a) (4.31 - 3.02)/(4 - 1) 0.43 ND<5.66 OK (5/14/2006 -) ND<3.02 U (1/16/2006 a) (5.66- 3.02)/(5 - 1) 0.66 ND<2.59 OK (7/11/2006 a) ND<3.02 U (1/16/2006 a) (2.59- 3.02)/(6 - 1) -0.086 ND<3.66 OK (10/6/2006 a) ND<3.02 U (1/16/2006 a) (3.66 - 3.02)/(7 - 1) 0.106667 ND<3.76 OK (1/3/2007 a) ND<3.02 U (1/16/2006 a) (3.76 - 3.02)/(8 - 1) 0.105714 ND<4.61 OK (3/15/2007 a) ND<3.02 U (1/16/2006 a) (4.61 - 3.02)/(9 - 1) 0.19875 ND<4.01 OK (6/11/2007 a) ND<3.02 U (1/16/2006 a) (4.01 - 3.02)/(10 - 1) 0.11 2.92 U (4/10/2006 a) ND<2.51 U (2/9/2006 a) (2.92 - 2.51)/(3 - 2) 0.41 ND<4.31 U (4/19/2006 a) ND<2.51 U (2/9/2006 a) (4.31 - 2.51)/(4 - 2) 0.9 ND<5.66 OK (5/14/2006 -) ND<2.51 U (2/9/2006 a) (5.66 - 2.51)/(5- 2) 1.05 ND<2.59 OK (7/11/2006 a) ND<2.51 U (2/9/2006 a) (2.59 - 2.51)/(6 - 2) 0.02 ND<3.66 OK (10/6/2006 a) ND<2.51 U (2/9/2006 a) (3.66 - 2.51)/(7- 2) 0.23 ND<3.76 OK (1/3/2007 a) ND<2.51 U (2/9/2006 a) (3.76 - 2.51)/(8 - 2) 0.208333 ND<4.61 OK (3/15/2007 a) ND<2.51 U (2/9/2006 a) (4.61 - 2.51)/(9 - 2) 0.3 ND<4.01 OK (6/11/2007 a) ND<2.51 U (2/9/2006 a) (4.01 - 2.51)/(10 - 2) 0.1875 ND<4.31 U (4/19/2006 a) 2.92 U (4/10/2006 a) (4.31 - 2.92)/(4 - 3) 1.39 ND<5.66 OK (5/14/2006 -) 2.92 U (4/10/2006 a) (5.66 - 2.92)/(5 - 3) 1.37 ND<2.59 OK (7/11/2006 a) 2.92 U (4/10/2006 a) (2.59 - 2.92)/(6 - 3) -0.11 ND<3.66 OK (10/6/2006 a) 2.92 U (4/10/2006 a) (3.66 - 2.92)/(7 - 3) 0.185 ND<3.76 OK (1/3/2007 a) 2.92 U (4/10/2006 a) (3.76 - 2.92)/(8 - 3) 0.168 ND<4.61 OK (3/15/2007 a) 2.92 U (4/10/2006 a) (4.61 - 2.92)/(9 - 3) 0.281667 ND<4.01 OK (6/11/2007 a) 2.92 U (4/10/2006 a) (4.01 - 2.92)/(10 - 3) 0.155714 ND<5.66 OK (5/14/2006 -) ND<4.31 U (4/19/2006 a) (5.66 - 4.31)/(5- 4) 1.35 ND<2.59 OK (7/11/2006 a) ND<4.31 U (4/19/2006 a) (2.59 - 4.31)/(6- 4) -0.86 ND<3.66 OK (10/6/2006 a) ND<4.31 U (4/19/2006 a) (3.66 - 4.31)/(7 - 4) -0.216667 ND<3.76 OK (1/3/2007 a) ND<4.31 U (4/19/2006 a) (3.76 - 4.31)/(8 - 4) -0.1375 ND<4.61 OK (3/15/2007 a) ND<4.31 U (4/19/2006 a) (4.61 - 4.31)/(9 - 4) 0.06 ND<4.01 OK (6/11/2007 a) ND<4.31 U (4/19/2006 a) (4.01 - 4.31)/(10- 4) -0.05 ND<2.59 OK (7/11/2006 a) ND<5.66 OK (5/14/2006 ~) (2.59 - 5:66)/(6 - 5) -3.07 ND<3.66 OK (10/6/2006 a) ND<5.66 OK (5/14/2006 ~) (3.66 - 5.66)/(7 - 5) -1 ND<3.76 OK (1/3/2007 a) ND<5.66 OK (5/14/2006 ~) (3.76 - 5.66)/(8 - 5) -0.633333 ND<4.61 OK (3/15/2007 a) ND<5.66 OK (5/14/2006 ~) (4.61 - 5.66)/(9 - 5) -0.2625 ND<4.01 OK (6/11/2007 a) ND<5.66 OK (5/14/2006 ~) (4.01 - 5.66)/(10- 5) -0.33 ND<3.66 OK (10/6/2006 a) ND<2.59 OK (7/11/2006 a) (3.66 - 2.59)/(7 - 6) 1.07 ND<3.76 OK (1/3/2007 a) ND<2.59 OK (7/11/2006 a) (3.76 - 2.59)/(8 - 6) 0.585 ND<4.61 OK (3/15/2007 a) ND<2.59 OK (7/11/2006 a) (4.61 - 2.59)/(9 - 6) 0.673333 ND<4.01 OK (6/11/2007 a) ND<2.59 OK (7/11/2006 a) (4.01 - 2.59)/(10 - 6) 0.355 ND<3.76 OK (1/3/2007 a) ND<3.66 OK (10/6/2006 a) (3.76 - 3.66)/(8 - 7) 0.1 ND<4.61 OK (3/15/2007 a) ND<3.66 OK (10/6/2006 a) (4.61 - 3.66)/(9 - 7) 0.475 Page 1

ND<4.01 OK (6/11/2007 a) N D<3.66 OK (10/6/2006 a) (4.01 - 3.66)/(10 - 7) 0.116667 ND<4.61 OK (3/15/2007 a) ND<3.76 OK (1/3/2007 a) (4.61 - 3.76)/(9 - 8) 0.85 ND<4.01 OK (6/11/2007 a) ND<3.76 OK (1/3/2007 a) (4.01 - 3.76)/(10 - 8) 0.125 ND<4.01 OK (6/11/2007 a) ND<4.61 OK (3/15/2007 a) (4.01 - 4.61)/(10 - 9) -0.6 Number of Q values = 45' Ordered 0 Values n Q 1 -3.07 2 -1 3 -0.86 4 -0.633333 5 -0.6 6 -0.51 7 -0.33 8 -0.2625 9 -0.216667 10 -0.1375 11 -0.11 12 -0.086 13 -0.05 14 -0.05 15 0.02

. 16 0.06 17 0.1 18 0.105714 19 0.106667 20 0.11 21 0.116667 22 0.125 23 0.155714 24 0.168 25 0.185 26 0.1875 27 0.19875 28 0.208333 29 0.23 30 0.281667 31 0.3 32 0.355 33 0.41 34 0.43 35 0.475 36 0.585 37 0.66 38 0.673333 39 0.85 40 0.9 41 1.05 42 1.07 43 1.35 44 1.37 45 1.39 Page 2

Sen's Estimator (Median Q) is 0.155714 Time Period Observations 1/16/2006 1 2/9/2006 1 4/10/2006 1 4/19/2006 1 5/14/2006 1 7/11/2006 1 10/6/2006 1 1/3/2007 1 3/15/2007 1 6/11/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b =6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

. C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.05 Q(13)

Upper limit is 0.41 = Q(33)

-0.05 < 0 < 0.41 indicating no trend in data.

Page 3

Cs-1 37 20 Time-Series Graph of MW123S 20 0 10 0 i 5

eu 00 Sapl Dt (0 (D CD ( , ,

S e Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW123S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 1.57 U (2/13/2006 a) ND<3.1 U (1/11/2006 ~) (1.57 - 3.1)/(2 - 1) -1.53 ND<3.82 U (3/20/2006 a) ND<3.1 U (1/11/2006 ~) (3.82 - 3.1)/(3 - 1) 0.36 ND<3.7 U (4/13/2006 a) ND<3.1 U (1/11/2006 ~) (3.7- 3.1)/(4 - 1) 0.2 ND<3.4 OK (5/4/2006 a) ND<3.1 U (1/11/2006 ~) (3.4- 3.1)/(5 - 1) 0.075 ND<3.32 OK (7/19/2006 a) ND<3.1 U (1/11/2006 ~) (3.32- 3.1)/(6 - 1) 0.044 ND<2.86 OK (10/4/2006 a) ND<3.1 U (1/11/2006 ~) (2.86 - 3.1)/(7 - 1) -0.04 ND<3.18 OK (1/3/2007 a) ND<3.1 U (1/11/2006 ~) (3.18- 3.1)/(8- 1) 0.0114286 ND<9.675 OK (3/20/2007 ~) ND<3.1 U (1/11/2006-) (9.675 - 3.1)/(9 - 1) 0.821875 ND<1 0.1 OK (6/13/2007 a) ND<3.1 U (1/11/2006 ~) (10.1 - 3.1)/(10 - 1) 0.777778 ND<3.82 U (3/20/2006 a) 1.57 U (2/13/2006 a) (3.82- 1.57)/(3 - 2) 2.25 ND<3.7 U (4/13/2006 a) 1.57 U (2/13/2006 a) (3.7- 1.57)/(4- 2) 1.065 ND<3.4 OK (5/4/2006 a) 1.57 U (2/13/2006 a) (3.4 - 1.57)/(5 - 2) 0.61 ND<3.32 OK (7/19/2006 a) 1.57 U (2/13/2006 a) (3.32 - 1.57)/(6 - 2) 0.4375 ND<2.86 OK (10/4/2006 a) 1.57 U (2/13/2006 a) (2.86 - 1.57)/(7 - 2) 0.258 ND<3.18 OK (1/3/2007 a) 1.57 U (2/13/2006 a) (3.18- 1.57)/(8 - 2) 0.268333 ND<9.675 OK (3/20/2007 ~) 1.57U (2/13/2006 a) (9.675 - 1.57)/(9 - 2) 1.15786 ND<1 0.1 OK (6/13/2007 a) 1.57 U (2/13/2006 a) (10.1 - 1.57)/(10- 2) 1.06625 ND<3.7 U (4/13/2006 a) ND<3.82 U (3/20/2006 a) (3.7 - 3.82)/(4 - 3) -0.12 ND<3.4 OK (5/4/2006 a) ND<3.82 U (3/20/2006 a) (3.4 - 3.82)/(5 - 3) -0.21 ND<3.32 OK (7/19/2006 a) ND<3.82 U (3/20/2006 a) (3.32 - 3.82)/(6 - 3) -0.166667 ND<2.86 OK (10/4/2006 a) ND<3.82 U (3/20/2006 a) (2.86 - 3.82)/(7 - 3) -0.24 ND<3.18 OK (1/3/2007 a) ND<3.82 U (3/20/2006 a) (3.18- 3.82)/(8 - 3) -0.128 ND<9.675 OK (3/20/2007 ~ ND<3.82 U (3/20/2006 a), (9.675 - 3.82)/(9 - 3) 0.975833 ND<10.1 OK (6/13/2007 a) ND<3.82 U (3/20/2006 a) (10.1.- 3.82)/(10 - 3) 0.897143 ND<3.4 OK (5/4/2006 a) ND<3.7 U (4/13/2006 a) (3.4 - 3.7)/(5 - 4) -0.3 ND<3.32 OK (7/19/2006 a) ND<3.7 U (4/13/2006 a) (3.32 - 3.7)/(6 - 4) -0.19 ND<2.86 OK (10/4/2006 a) ND<3.7 U (4/13/2006 a) (2.86 - 3.7)/(7 - 4) -0.28 ND<3.18 OK (1/3/2007 a) ND<3.7 U (4/13/2006 a) (3.18- 3.7)/(8 - 4) -0.13 ND<9.675 OK (3/20/2007 ~ ND<3.7 U (4/13/2006 a) (9.675 - 3.7)/(9 - 4) 1.195 ND<10.1 OK (6/13/2007 a) ND<3.7 U (4/13/2006 a) (10.1 - 3.7)/(10- 4) 1.06667 ND<3.32 OK (7/19/2006 a) ND<3.4 OK (5/4/2006 a) (3.32 - 3.4)/(6 - 5) -0.08 ND<2.86 OK (10/4/2006 a) ND<3.4 OK (5/4/2006 a) (2.86 - 3.4)/(7 - 5) -0.27 ND<3.18 OK (1/3/2007 a) ND<3.4 OK (5/4/2006 a) (3.18- 3.4)/(8- 5) -0.0733333 ND<9.675 OK (3/20/2007 ~ ND<3.4 OK (5/4/2006 a) (9.675 - 3.4)/(9 - 5) 1.56875 ND<10.1 OK (6/13/2007 a) ND<3.4 OK (5/4/2006 a) (10.1 - 3.4)/(10- 5) 1.34 ND<2.86 OK (10/4/2006 a) ND<3.32 OK (7/19/2006 a) (2.86 - 3.32)/(7 - 6) -0.46 ND<3.18 OK (1/3/2007 a) ND<3.32 OK (7/19/2006 a) (3.18 - 3.32)/(8 - 6) -0.07 ND<9.675 OK (3/20/2007 ~) ND<3.32 OK (7/19/2006 a) (9.675 - 3.32)/(9 - 6) 2.11833 ND<10.1 OK (6/13/2007 a) ND<3.32 OK (7/19/2006 a) (10.1 - 3.32)/(10- 6) 1.695 ND<3.18 OK (1/3/2007 a) ND<2.86 OK (10/4/2006 a) (3.18 - 2.86)/(8 - 7) 0.32 ND<9.675 OK (3/20/2007 ~) ND<2.86 OK (10/4/2006 a) (9.675 - 2.86)/(9 - 7) 3.4075 Page 1

ND<10.1 OK (6/13/2007 a) ND<2.86 OK (10/4/2006 a) (10.1 - 2.86)/(10- 7) 2.41333 ND<9.675 OK (3/20/2007 -) ND<3.18 OK (1/3/2007 a) (9.675 - 3.18)/(9 - 8) 6.495 ND<1 0.1 OK (6/13/2007 a) ND<3.18 OK (1/3/2007 a) (10.1 - 3.18)/(10 - 8) 3.46 ND<10.1 OK (6/13/2007 a) ND<9.675 OK (3/20/2007 ~) (10.1 - 9.675)/(10 - 9) 0.425 Number of 0 values = 45 Ordered 0 Values n Q 1 -1.53 2 -0.46 3 -0.3 4 -0.28

5. -0.27 6 -0.24 7 -0.21 8 -0.19 9 -0.166667 10 -0.13 11 -0.128 12 -0.12 13 -0.08 14 -0.0733333

. 15 16 17

-0.07

-0.04 0.0114286 18 0.044 19 0.075 20 0.2 21 0.258 22 0.268333 23 0.32 24 0.36 25 0.425 26 0.4375 27 0.61 28 0.777778 29 0.821875 30 0.897143 31 0.975833 32 1.065 33 1.06625 34 1.06667 35 1.15786 36 1.195 37 1.34 38 1.56875 39 1.695 40 2.11833 41 2.25 42 2.41333 43 3.4075 44 3.46 45 6.495 Page 2

Sen's Estimator (Median Q) is 0.32 Time Period Observations 1/11/2006 1 2/13/2006 1 3/20/2006 1 4/13/2006 1 5/4/2006 1 7/19/2006 1 10/4/2006 1 1/3/2007 1 3/20/2007 1 6/13/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 18.39 O M1 = (45- 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.08 = Q(13)

Upper limit is 1.06625 = Q(33)

-0.08 < 0 < 1.06625 indicating no trend in data.

Page 3

0 Cs-I 37 C) 0 C-)

0 C-)

(0DC (0 C.- 1. 0 (0

0 o 0 0 0N 0

0N (N 0 (N CO(0 O -

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW124S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<2.72 U (2/12/2006 a) ND<3.8 U (1/9/2006 a) (2.72 - 3.8)/(2 - 1) -1.08 ND<4.11 U (3/17/2006 a) ND<3.8 U (1/9/2006 a) (4.11 - 3.8)/(3- 1) 0.155 ND<3.04 U (4/13/2006 a) ND<3.8 U (1/9/2006 a) (3.04 - 3.8)/(4 - 1) -0.253333 ND<5.05 OK (5/12/2006 a) ND<3.8 U (1/9/2006 a) (5.05 - 3.8)/(5 - 1) 0.3125 ND<3.24 OK (7/11/2006 a) ND<3.8 U (1/9/2006 a) (3.24 - 3.8)/(6 - 1) -0.112 ND<2.22 OK (10/4/2006 a) ND<3.8 U (1/9/2006 a) (2.22 - 3.8)/(7 - 1) -0.263333 ND<3.42 OK (1/2/2007 a) ND<3.8 U (1/9/2006 a) (3.42 - 3.8)/(8 - 1) -0.0542857 ND<3.62 OK (3/13/2007 a) ND<3.8 U (1/9/2006 a) (3.62 - 3.8)/(9 - 1) -0,0225 ND<3.67 OK (4/9/2007 a) ND<3.8 U (1/9/2006 a) (3.67 - 3.8)/(10 - 1) -0.0144444 ND<5.37 OK (6/12/2007 a) ND<3.8 U (1/9/2006 a) (5.37 - 3.8)/(11 - 1) 0.157 ND<4.11 U (3/17/2006 a) ND<2.72 U (2/12/2006 a) (4.11 - 2.72)/(3 - 2) 1.39 ND<3.04 U (4/13/2006 a) ND<2.72 U (2/12/2006 a) (3.04 - 2.72)/(4 - 2) 0.16 ND<5.05 OK (5/12/2006 a) ND<2.72 U (2/12/2006 a) (5.05 - 2.72)/(5 - 2) 0.776667 ND<3.24 OK (7/11/2006 a) ND<2.72 U (2/12/2006 a) (3.24 - 2.72)/(6 - 2) 0.13 ND<2.22 OK (10/4/2006 a) ND<2.72 U (2/12/2006 a) (2.22 - 2.72)/(7 - 2) -0.1 ND<3.42 OK (1/2/2007 a) ND<2.72 U (2/12/2006 a) (3.42 - 2.72)/(8 - 2) 0.116667

ND<3.62 OK (3/13/2007 a) ND<2.72 U (2/12/2006 a) (3.62 - 2.72)/(9 - 2) 0.128571 ND<3.67 OK (4/9/2007 a) ND<2.72 U (2/12/2006 a) (3.67 - 2.72)/(10- 2) 0.11875 ND<5.37 OK (6/12/2007 a) ND<2.72 U (2/12/2006 a) (5.37 - 2.72)/(11 - 2) 0.294444 ND<3.04 U (4/13/2006 a) ND<4.11 U (3/17/2006 a) (3.04- 4.11)/(4 - 3) -1.07 ND<5.05 OK (5/12/2006 a) ND<4.!1 U (3/17/2006 a) (5.05 - 4.11)/(5 - 3) 0.47 ND<3.24 OK (7/11/2006 a) ND<4.11 U (3/17/2006 a) (3.24 - 4.11)/(6 - 3) -0.29 ND<2.22 OK (110/4/2006 a) ND<4.11 U (3/17/2006 a) (2.22- 4.11)/(7- 3) -0.4725 ND<3.42 OK (1/2/2007 a) ND<4.11 U (3/17/2006 a) (3.42- 4.11)/(8- 3) -0.138 ND<3.62 OK (3/13/2007 a) ND<4.11 U (3/17/2006 a) (3.62 - 4.11)/(9- 3) -0.0816667 ND<3.67 OK (4/9/2007 a) ND<4.11 U (3/17/2006 a) (3.67 - 4.11)/(10 - 3) -0.0628571 ND<5.37 OK (6/12/2007 a) ND<4.11 U (3/17/2006 a) (5.37- 4.11)/(11 - 3) 0.1575 ND<5.05 OK (5/12/2006 a) ND<3.04 U (4/13/2006 a) (5.05 - 3.04)/(5 - 4) 2.01 ND<3.24 OK (7/11/2006 a) ND<3.04 U (4/13/2006 a) (3.24 - 3.04)/(6 - 4) 0.1 ND<2.22 OK (10/4/2006 a) ND<3.04 U (4/13/2006 a) (2.22 - 3.04)/(7 - 4) -0.273333 ND<3.42 OK (1/2/2007 a) ND<3.04 U (4/13/2006 a) (3.42 - 3.04)/(8 - 4) 0.095 ND<3.62 OK (3/13/2007 a) ND<3.04 U (4/13/2006 a) (3.62 - 3.04)/(9 - 4) 0.116 ND<3.67 OK (4/9/2007 a) ND<3.04 U (4/13/2006 a) (3.67- 3.04)/(10- 4) 0.105 ND<5.37 OK (6/12/2007 a) ND<3.04 U (4/13/2006 a) (5.37 - 3.04)/(11 - 4) 0.332857 ND<3.24 OK (7/11/2006 a) ND<5.05 OK (5/12/2006 a) (3.24 - 5.05)/(6 - 5) -1.81 ND<2.22 OK (10/4/2006 a) ND<5.05 OK (5/12/2006 a) (2.22 - 5.05)/(7 - 5) -1.415 ND<3.42 OK (1/2/20.07 a) ND<5.05 OK (5/12/2006 a) (3.42 - 5.05)/(8 - 5) -0.543333 ND<3.62 OK (3/13/2007 a) ND<5.05 OK (5/12/2006 a) (3.62 - 5.05)/(9 - 5) -0.3575 ND<3.67 OK (4/9/2007 a) ND<5.05 OK (5/12/2006 a) (3.67 - 5.05)/(10 - 5) -0.276 ND<5.37 OK (6/12/2007 a) ND<5.05 OK (5/12/2006 a) (5.37 - 5.05)/(11 - 5) 0.0533333

. ND<2.22 OK (10/4/2006 a)

ND<3.42 OK (1/2/2007 a)

ND<3.24 OK (7/11/2006 a)

(2.22 - 3.24)/(7 - 6)

(3.42 - 3.24)/(8 - 6)

-1.02 0.09 Page 1

.ND<3.62 ND<3.67 OK OK (3/13/2007 (4/9/2007 a)a)

ND<5.37 OK (6/12/2007 a)

ND<3.24 OK (7/11/2006 a)

(3.62 - 3.24)/(9 - 6)

(3.67 - 3.24)/(10- 6)

(5.37 - 3.24)/(11 - 6) 0.126667 0.1075 0.426 ND<3.42 OK (1/2/2007 a) ND<2.22 OK (10/4/2006 a) (3.42 - 2.22)/(8 - 7) 1.2 ND<3.62 OK (3/13/2007 a) ND<2.22 OK (10/4/2006 a) (3.62 - 2.22)/(9 - 7) 0.7 ND<3.67 OK (4/9/2007 a) ND<2.22 OK (10/4/2006 a) (3.67- 2.22)/(10- 7) 0.483333 ND<5.37 OK (6/12/2007 a) ND<2.22 OK (10/4/2006 a) (5.37 - 2.22)/(11 - 7) 0.7875 ND<3.62 OK (3/13/2007 a) ND<3.42 OK (1/2/2007 a) (3.62 - 3.42)/(9 - 8) 0.2 ND<3.67 OK (4/9/2007 a) ND<3.42 OK (1/2/2007 a) (3.67- 3.42)/(10- 8) 0.125 ND<5.37 OK (6/12/2007 a) ND<3.42 OK (1/2/2007 a) (5.37 - 3.42)/(11 - 8) 0.65 (3.67 - 3.62)/( 9) 0.05 ND<3.67 OK (4/9/2007 a) ND<3.62 OK (3/13/2007 a)

ND<5.37 OK (6/12/2007 a) ND<3.62 OK (3/13/2007 a) (5.37 - 3.62)/(11 - 9) 0.875 ND<5.37 OK (6/12/2007 a) ND<3.67 OK (4/9/2007 a) (5.37- 3.67)/(11 - 10) 1.7 Number of Q values = 55 Ordered Q Values n Q

-1.81 2 -1.415 3 -1.08 4 -1.07 5 -1.02 6 -0.543333 7 -0.4725 8 -0.3575 9 -0.29 10 -0.276 11 -0.273333 12 -0.263333 13 -0.253333 14 -0.138 15 -0.112 16 -0.1 17 -0.0816667 18 -0.0628571 19 -0.0542857 20 -0.0225 21 -0.0144444 22 0.05 23 0.0533333 24 0.09 25 0.095 26 0.1 27 0.105 28 0.1075 29 0.116 30 0.116667

. 31 32 33 0.11875 0.125 0.126667 34 0.128571 Page 2

. 36 35 37 0.155 0.13 0.157 38 0.1575 39 0.16 40 0.2 41 0.294444 42 0.3125 43 0.332857 44 0.426 45 0.47 46 0.483333 47 0.65 48 0.7 49 0.776667 50 0.7875 51 0.875 52 1.2 53 1.39 54 1.7 55 2.01 Sen's Estimator (Median Q) is 0.1075 Time Period Observations 1/9/2006 1 2/12/2006 1

. 3/17/2006 4/13/2006 5/12/2006 1

1 1

7/11/2006 1 10/4/2006 1 1/2/2007 1 3/13/2007 1 4/9/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 c=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.0816667 = Q(17)

Upper limit is 0.16 = Q(39)

-0.0816667 < 0 < 0.16 indicating no trend in data.

Page 3

Cs-1 37 7I Time-Series Graph of MW125S 6

6..........

4-3C

( o (0c 00 0 0 00 Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW125S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<4.23 U (2/6/2006 a) ND<3.43 U (1/9/2006 a) (4.23 - 3.43)/(2 - 1) 0.8 ND<3.43 U (2/9/2006 a) ND<3.43 U (1/9/2006 a) (3.43- 3.43)/(3 - 1) 0

,ND<3.7 U (3/17/2006 a) ND<3.43 U (1/9/2006 a) (3.7- 3.43)/(4 - 1) 0.09 ND<3.11 U (4/13/2006 a) ND<3.43 U (1/9/2006 a) (3.11 - 3.43)/(5- 1) -0.08 ND<6.365 OK (5/12/2006 ~) ND<3.43 U (1/9/2006 a) (6.365 - 3.43)/(6 - 1) 0.587 ND<3.05 OK (7/8/2006 a) ND<3.43 U (1/9/2006 a) (3.05 - 3.43)/(7 - 1) -0.0633333 ND<3.56 OK (7/10/2006 a) ND<3.43 U (1/9/2006 a) (3.56 - 3.43)/(8 - 1) 0.0185714 ND<2.82 OK (10/4/2006 a) ND<3.43 U (1/9/2006 a) (2.82- 3.43)/(9 - 1) -0.07625 ND<3.04 OK (11/15/2006 a) ND<3.43 U (1/9/2006 a) (3.04 - 3.43)/(10 - 1) -0.0433333 ND<3.36 OK (1/2/2007 a) ND<3.43 U (1/9/2006 a) (3.36- 3.43)/(11 - 1) -0.007 ND<3.6 OK (3/13/2007 a) ND<3.43 U (1/9/2006 a) (3.6- 3.43)/(12 - 1) 0.0154545 ND<3.51 OK (4/9/2007 a) ND<3.43 U (1/9/2006 a) (3.51 - 3.43)/(13 - 1) 0.00666667 ND<4.06 OK (6/1.2/2007 a) ND<3.43 U (1/9/2006 a) (4.06- 3.43)/(14 - 1) 0.0484615 ND<3.43 U (2/9/2006 a) ND<4.23 U (2/6/2006 a) (3.43 - 4.23)/(3 - 2) -0.8 ND<3.7 U (3/17/2006 a) ND<4.23 U (2/6/2006 a) (3.7 - 4.23)/(4 - 2) -0.265

. ND<3.11 U (4/13/2006 a)

ND<6.365 OK (5/12/2006 ~)

ND<3.05 OK (7/8/2006 a)

ND<4.23 ND<4.23 ND<4.23 U (2/6/2006 a)

U (2/6/2006 a)

(3.11 - 4.23)/(5 - 2)

(6.365 - 4.23)/(6 - 2)

(3.05 - 4.23)/(7 - 2)

-0.373333 0.53375 70.236 ND<3.56 OK (7/10/2006 a) ND<4.23 U (2/6/2006 a) (3.56 - 4.23)/(8 - 2) -0.111667 ND<2.82 OK (10/4/2006 a) ND<4.23 U (2/6/2006 a) (2.82 - 4.23)/(9 - 2) -0.201429 ND<3.04 OK (11/15/2006 a) ND<4.23 U (2/6/2006 a) (3.04 - 4.23)/(10 - 2) -0.14875 ND<3.36 OK (1/2/2007 a) ND<4.23 U (2/6/2006 a) (3.36 - 4.23)/(11 - 2) -0.0966667 ND<3.6 OK (3/13/2007 a) ND<4.23 U (2/6/2006 a) (3.6 - 4.23)/(12 - 2) -0.063 ND<3.51 OK (4/9/2007 a) ND<4.23 U (2/6/2006 a) (3.51 - 4.23)/(13- 2) -0.0654545 ND<4.06 OK (6/12/2007 a) ND<4.23 U (2/6/2006 a) (4.06 - 4.23)/(14 - 2) -0.0141667 ND<3.7 U (3/17/2006 a) ND<3.43 U (2/9/2006 a) (3.7 - 3.43)/(4 - 3) 0.27 ND<3.11 U (4/13/2006 a) ND<3.43 U (2/9/2006 a) (3.11 - 3.43)/(5 - 3) -0.16 ND<6.365 OK (5/12/2006 ~) ND<3.43 U (2/9/2006 a) (6.365 - 3.43)/(6 - 3) 0.978333 ND<3.05 OK (7/8/2006 a) ND<3.43 U (2/9/2006 a) (3.05 - 3.43)/(7 - 3) -0.095 ND<3.56 OK (7/10/2006 a) ND<3.43 U (2/9/2006 a) (3.56 - 3.43)/(8 - 3) 0.026 ND<2.82 OK (10/4/2006 a) ND<3.43 U (2/9/2006 a) (2.82 - 3.43)/(9 - 3) -0.101667 ND<3.04 OK (11/15/2006 a) ND<3.43 U (2/9/2006 a) (3.04 - 3.43)/(10- 3) -0.0557143 ND<3.36 OK (1/2/2007 a) ND<3.43 U (2/9/2006 a) (3.36 - 3.43)/(11 - 3) -0.00875 ND<3.6 OK (3/13/2007 a) ND<3.43 U (2/9/2006 a) (3.6- 3.43)/(12- 3) 0.0188889 ND<3.51 OK (4/9/2007 a) ND<3.43 U (2/9/2006 a) (3.51 - 3.43)/(13- 3) 0.008 ND<4.06 OK (6/12/2007 a) ND<3.43 U (2/9/2006 a) (4.06 - 3.43)/(14 - 3) 0.0572727 ND<3.11 U (4/13/2006 a) ND<3.7 U (3/17/2006 a) (3.11 - 3.7)/(5 - 4) -0.59 ND<6.365 OK (5/12/2006 ~) ND<3.7 U (3/17/2006 a) (6.365 - 3.7)/(6 - 4) 1.3325 ND<3.05 OK (7/8/2006 a) ND<3.7 U (3/17/2006 a) (3.05 - 3.7)/(7 - 4) -0.216667 ND<3.56 OK (7/10/2006 a) ND<3.7 U (3/17/2006 a) (3.56 - 3.7)/(8 - 4) -0.035 ND<2.82 OK (10/4/2006 a) ND<3.7 U (3/17/2006 a) (2.82 - 3.7)/(9 - 4) -0.176 O ND<3.04 OK (11/15/2006 a) ND<3.7 U (3/17/2006 a) (3.04 - 3.7)/(10- 4) -0.11 ND<3.36 OK (1/2/2007 a) ND<3.7 U (3/17/2006 a) (3.36 - 3.7)/(11 - 4) -0.0485714 ND<3.6 OK (3/13/2007 a) ND<3.7 U (3/17/2006 a) (3.6 - 3.7)/(12 - 4) -0.0125 Page 1

. ND<4.06 ND<3.51 OK OK (6/12/2007 (4/9/2007 a)a)

ND<3.7 U (3/17/2006 a)

(3.51 - 3.7)/(13- 4)

(4.06 - 3.7)/(14 - 4)

-0.0211111 0.036 ND<6.365 OK (5/12/2006 ~) ND<3.11 U (4/13/2006 a) (6.365 - 3.11)/(6 - 5) 3.255 ND<3.05 OK (7/8/2006 a) ND<3.11 U (4/13/2006 a) (3.05 - 3.11)/(7- 5) -0.03 ND<3.56 OK (7/10/2006 a) ND<3.11 U (4/13/2006 a) (3.56 - 3.11)/(8- 5) 0.15 ND<2.82 OK (10/4/2006 a) ND<3.11 U (4/13/2006 a) (2.82 - 3.11)/(9 - 5) -0.0725 ND<3.04 OK (11/15/2006 a) ND<3.11 U (4/13/2006 a) (3.04 - 3.11)/(10- 5) -0.014 ND<3.36 OK (1/2/2007 a) ND<3.11 U (4/13/2006 a) (3.36 - 3.11)/(11 - 5) 0.041,6667 ND<3.6 OK (3/13/2007 a) ND<3.11 U (4/13/2006 a) (3.6- 3.11)/(12- 5) 0.07 ND<3.51 OK (4/9/2007 a) ND<3.11 U (4/13/2006 a) (3.51 - 3.11)/(13 - 5) 0.05 ND<4.06 OK (6/12/2007 a) ND<3.11 U (4/13/2006 a) (4.06 - 3.11)/(14 - 5) 0.105556 ND<3.05 OK (7/8/2006 a) ND<6.365 OK (5/12/2006 ~) (3.05 - 6.365)/(7 - 6) -3.315 ND<3.56 OK (7/10/2006 a) ND<6.365 OK (5/12/2006 ~) (3.56 - 6.365)/(8 - 6) -1.4025 ND<2.82 OK (10/4/2006 a) ND<6.365 OK (5/12/2006 ~) (2.82 - 6.365)/(9 - 6) -1.18167 ND<3.04 OK (11/15/2006 a) ND<6.365 OK (5/12/2006 ~) (3.04 - 6.365)/(10 - 6) -0.83125 ND<3.36 OK (1/2/2007 a) ND<6.365 OK (5/12/2006 ~) (3.36 - 6.365)/(11 - 6) -0.601 ND<3.6 OK (3/13/2007 a) ND<6.365 OK (5/12/2006 ~) (3.6 - 6.365)/(12 - 6) -0.460833 ND<3.51 OK (4/9/2007 a) ND<6.365 OK (5/12/2006 ~) (3.51 - 6.365)/(13 - 6) -0.407857 ND<4.06 OK (6/12/2007 a) ND<6.365 OK (5/12/2006 ~) (4.06 - 6.365)/(14 - 6) -0.288125 ND<3.56 OK (7/10/2006 a) ND<3.05 OK (7/8/2006 a) (3.56 - 3.05)/(8 - 7) 0.51 ND<2.82 OK (10/4/2006 a) ND<3.05 OK (7/8/2006 a) (2.82 - 3.05)/(9 - 7) -0.115 ND<3.04 OK (11/15/2006 a) ND<3.05 OK (7/8/2006 a) (3.04 - 3.05)/(10 - 7) -0.00333333 ND<3.36 OK (1/2/2007 a) ND<3.05 OK (7/8/2006 a) (3.36 - 3.05)/(11 - 7) 0.0775 ND<3.6 OK (3/13/2007 a) ND<3.05 OK (7/8/2006 a) (3.6 - 3.05)/(12 - 7) 0.11 ND<3.51 OK (4/9/2007 a) ND<3.05 OK (7/8/2006 a) (3.51 - 3.05)/(13 - 7) 0.0766667 ND<4.06 OK (6/12/2007 a) ND<3.05 OK (7/8/2006 a) (4.06 - 3.05)/(14 - 7) 0.144286 ND<2.82 OK (10/4/2006 a) ND<3.56 OK (7/10/2006 a) (2.82 - 3.56)/(9 - 8) -0.74 ND<3.04 OK (11/15/2006 a) ND<3.56 OK (7/10/2006 a) (3.04 - 3.56)/(10 - 8) -0.26 ND<3.36 OK (1/2/2007 a) ND<3.56 OK (7/10/2006 a) (3.36 - 3.56)/(11 - 8) -0.0666667 ND<3.6 OK (3/13/2007 a) ND<3.56 OK (7/10/2006 a) (3.6 - 3.56)/(12 - 8) 0.01 ND<3.51 OK (4/9/2007 a) ND<3.56 OK (7/10/2006 a) (3.51 - 3.56)/(13 - 8) -0.01 ND<4.06 OK (6/12/2007 a) ND<3.56 OK (7/10/2006 a) (4.06 - 3.56)/(14 - 8) 0.0833333 ND<3.04 OK (11/15/2006 a) ND<2.82 OK (10/4/2006 a) (3.04- 2.82)/(10- 9) 0.22 ND<3.36 OK (1/2/2007 a) ND<2.82 OK (10/4/2006 a) (3.36 - 2.82)/(11 - 9) 0.27 ND<3.6 OK (3/13/2007 a) ND<2.82 OK (10/4/2006 a) (3.6 - 2.82)/(12 - 9) 0.26 ND<3.51 OK (4/9/2007 a) ND<2.82 OK (10/4/2006 a) (3.51 - 2.82)/(13- 9) 0.1725 ND<4.06 OK (6/12/2007 a) ND<2.82 OK (10/4/2006 a) (4.06 - 2.82)/(14 - 9) 0.248 ND<3.36 OK (1/2/2007 a) ND<3.04 OK (11/15/2006 a) (3.36 - 3.04)/(11 - 10) 0.32 ND<3.6 OK (3/13/2007 a) ND<3.04 OK (11/15/2006 a) (3.6- 3.04)/(12 - 10) 0.28 ND<3.51 OK (4/9/2007 a) ND<3.04 OK (11/15/2006 a) (3.51 - 3.04)/(13 - 10) 0.156667 ND<4.06 OK (6/12/2007 a) ND<3.04 OK (11/15/2006 a) (4.06 - 3.04)/(14 - 10) 0.255 ND<3.6 OK (3/13/2007 a) ND<3.36 OK (1/2/2007 a) (3.6- 3.36)/(12 - 11) 0.24 ND<3.51 OK (4/9/2007 a) ND<3.36 OK (1/2/2007 a) (3.51 - 3.36)/(13- 11) 0.075 ND<4.06 OK (6/12/2007 a) ND<3.36 OK (1/2/2007 a) (4.06 - 3.36)/(14 - 11) 0.233333 ND<3.51 OK (4/9/2007 a) ND<3.6 OK (3/13/2007 a) (3.51 -.3.6)/(13 - 12) -0.09 ND<4.06 OK (6/12/2007 a) ND<3.6 OK (3/13/2007 a) (4.06- 3.6)/(14 - 12) 0.23 ND<4.06 OK (6/12/2007 a) ND<3.51 OK (4/9/2007 a) (4.06 - 3.51)/(14 - 13) 0.55 Page 2

Number of Q values = 91 Ordered Q Values n Q 1 -3.315 2 -1.4025 3 -1.18167 4 -0.83125 5 -0.8 6 -0.74 7 -0.601 8 -0.59 9 -0.460833 10 -0.407857 11 -0.373333 12 -0.288125 13 -0.265 14 -0.26 15 -0.236 16 -0.216667 17 -0.201429 18 -0.176 19 -0.16 20 -0.14875 21 -0Y.115 22 -0.111667 23 -0.11 24 -0.101667 25 -0.0966667 26 -0.095 27 -0.09 28 -0.08 29 -0.07625 30 -0.0725 31 -0.0666667 32 -0.0654545 33 -0.0633333 34 -0.063 35 -0.0557143 36 -0.0485714 37 -0.0433333 38 -0.035 39 -0.03 40 -0.0211111 41 -0.0141667 42 -0.014 43 -0.0125 44 -0.01 45 -0.00875 46 -0.007 47 -0.00333333 48 0 49 0.00666667 O 150 0.008 51 0.01 52 0.0154545 Page 3

. 54 53 55 0.0188889 0.0185714 0.026 56 0.036 57 0.0416667 58 0.0484615 59 0.05 60 0.0572727 61 0.07 62 0.075 63 0.0766667 64 0.0775 65 0.0833333 66 0.09 67 0.105556 68 0.11 69 0.144286 70 0.15 71 0.156667 72 0.1725 73 0.22 74 0.23 75 0.233333 76 0.24 77 0.248 78 0.255 79 0.26 80 0.27 81 0.27 82' 0.28 83 0.32 84 0.51 85 0.53375 86 0.55 87 0.587 88 0.8 89 0.978333 90 1.3325 91 3.255 Sen's Estimator (Median Q) is -0.007 Tied Group Value Members 1 3.43 2 Time Period Observations 1/9/2006 1 2/6/2006 1 2/9/2006 1 3/17/2006 1 4/13/2006 1 5/12/2006 1 7/8/2006 1 7/10/2006 1

. 10/4/2006 11/15/2006 1/2/2007 1

1 1

3/13/2007 1 Page 4

S 6/12/2007 4/9/2007 1 There are 0 time periods with multiple.data A =18 B=0 C=0 D=0 E=2 F=0 a = 6006 b = 19656 c = 364

-Group Variance = 332.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 30.0007 M1 = (91 - 30.0007)/2.0 = 30.4996 M2 =(91 + 30.0007)/2.0 + 1 = 61.5004 Lower limit is -0.0725 = Q(30)

Upper limit is 0.075 = Q(62)

-0.0725 < 0 < 0.075 indicating no trend in data.

Page 5

Cs-1 37 Time-Series Graph of MW130 0

C-)

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW130 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<3.52 U (2/16/2006 a) ND<4.16 U (1/11/2006 a) (3.52 - 4.16)/(2 - 1) -0.64 ND<3.975 U (2/17/2006 -) ND<4.16 U (1/11/2006 a) (3.975 - 4.16)/(3 - 1) -0.0925 ND<2.81 U (3/18/2006 a) ND<4. 16 U (1/11/2006 a) (2.81 - 4.16)/(4 - 1) -0.45 ND<3.56 U (4/13/2006 a) ND<4.16 U (1/11/2006 a) (3.56 - 4.16)/(5 - 1) -0.15 ND<3.97 OK (5/4/2006 a) ND<4.16 U (1/11/2006 a) (3.97 - 4.16)/(6 - 1) -0.038 ND<4 OK (7/18/2006 a) ND<4.16 U (1/11/2006 a) (4- 4.16)/(7 - 1) -0.0266667 ND<3.68 OK (10/5/2006 a) ND<4.16 U (1/11/2006 a) (3.68 - 4.16)/(8 - 1) -0.0685714 ND<3.63 OK (1/4/2007 a) ND<4.16 U (1/11/2006 a) (3.63 - 4.16)/(9, 1) -0.06625 ND<4.44 OK (3/14/2007 a) ND<4.16 U (1/11/2006 a) (4.44 - 4.16)/(10 - 1) 0.0311111 ND<4.73 OK (6/9/2007 a) ND<4.16 U (1/11/2006 a) (4.73- 4.16)/(11 - 1) 0.057 ND<3.975 U (2/17/2006 -) ND<3.52 U (2/16/2006 a) (3.975 - 3.52)/(3 - 2) 0.455.

ND<2.81 U (3/18/2006 a) ND<3.52 U (2/16/2006 a) (2.81 - 3.52)/(4 - 2) -0.355 ND<3.56 U (4/13/2006 a) ND<3.52 U (2/16/2006 a) (3.56 - 3.52)/(5 - 2) 0.0133333 ND<3.97 OK (5/4/2006 a) ND<3.52 U (2/16/2006 a) (3.97 - 3.52)/(6 - 2) 0.1125 ND<4 OK (7/18/2006 a) ND<3.52 U (2/16/2006 a) (4 - 3.52)/(7 - 2) 0.096 ND<3.68 OK (10/5/2006 a) ND<3.52 U (2/16/2006 a) (3.68 - 3.52)/(8 - 2) 0.0266667 S ND<3.63 OK (1/4/2007 a)

ND<4.44 OK (3/14/2007 a)

ND<3.52 ND<3.52 U (2/16/2006 U (2/16/2006 a) a)

(3.63 - 3.52)/(9 - 2)

(4.44- 3.52)/(10- 2) 0.0157143 0.115 ND<4.73 OK (6/9/2007 a) ND<3.52 U (2/16/2006 a) (4.73 - 3.52)/(11 - 2) 0.134444 ND<2.81 U (3/18/2006 a) ND<3.975 U (2/17/2006 ~) (2.81 - 3.975)/(4 - 3) -1.165 ND<3.56 U (4/13/2006 a) ND<3.975 U (2/17/2006 ~) (3.56 - 3.975)/(5 - 3) -0.2075 ND<3.97 OK (5/4/2006 a) ND<3.975 U (2/17/2006 ~) (3.97 - 3.975)/(6 - 3) -0.00166667 ND<4 OK (7/18/2006 a) ND<3.975 U (2/17/2006 ~) (4 - 3.975)/(7 - 3) 0.00625 ND<3.68 OK (10/5/2006 a) ND<3.975 U (2/17/2006 ~) (3.68 - 3.975)/(8 - 3) -0.059 ND<3.63 OK (1/4/2007 a) ND<3.975 U (2/17/2006 ~) (3.63 - 3.975)/(9 - 3) -0.0575 ND<4.44 OK (3/14/2007 a) ND<3.975 U (2/17/2006 ~) (4.44 - 3.975)/(10 - 3) 0.0664286 ND<4.73 OK (6/9/2007 a) ND<3.975 U (2/17/2006 ~) (4.73 - 3.975)/(11 - 3) 0.094375 ND<3.56 U (4/13/2006 a) ND<2.81 U (3/18/2006 a) (3.56 - 2.81)/(5 - 4) 0.75 ND<3.97 OK (5/4/2006 a) ND<2.81 U (3/18/2006 a) (3.97 - 2.81)/(6 -.4) 0.58 ND<4 OK (7/18/2006 a) ND<2.81 U (3/18/2006 a) (4 - 2.81)/(7- 4) 0.396667 ND<3.68 OK (10/5/2006 a) ND<2.81 U (3/18/2006 a) (3.68 - 2.81)/(8 - 4) 0.2175 ND<3.63 OK (1/4/2007 a) ND<2.81 U (3/18/2006 a) (3.63 - 2.81)/(9 - 4) 0.164 ND<4.44 OK (3/14/2007 a) ND<2.81 U (3/18/2006 a) (4.44 - 2.81)/(10 - 4) 0.271667 ND<4.73 OK (6/9/2007 a) ND<2.81 U (3/18/2006 a) (4*73- 2.81)/(11 - 4) 0.274286 ND<3.97 OK (5/4/2006 a) ND<3.56 U (4/13/2006 a) (3.97 - 3.56)/(6 - 5) 0.41 ND<4 OK (7/18/2006 a) ND<3.56 U (4/13/2006 a) (4 - 3.56)/(7 - 5) 0.22-ND<3.68 OK (10/5/2006 a) ND<3.56 U (4/13/2006 a) (3.68 - 3.56)/(8 - 5) 0.04 ND<3.63 OK (1/4/2007 a) ND<3.56 U (4/13/2006 a) (3.63 - 3.56)/(9 - 5) 0.0175 ND<4.44 OK (3/14/2007 a) ND<3.56 U (4/13/2006 a) (4.44 - 3.56)/(10 - 5) 0.176 ND<4.73 OK (6/9/2007 a) ND<3.56 U (4/13/2006 a) (4.73 - 3.56)/(11 - 5) 0.195 ND<4 OK (7/18/2006 a) ND<3.97 OK (5/4/2006 a) (4 - 3.97)/(7 - 6) 0.03 ND<3.68 OK (10/5/2006 a) ND<3.97 OK (5/4/2006 a) (3.68 - 3.97)/(8 - 6) -0.145 Page 1

ND<3.63 OK (1/4/2007 a) ND<3.97 OK (5/4/2006 a) (3.63 - 3.97)/(9 - 6) -0.113333 ND<4.44 OK (3/14/2007 a) ND<3.97 OK (5/4/2006 a) (4.44 - 3.97)/(10 - 6) 0.1175 ND<4.73 OK (6/9/2007 a) ND<3.97 OK (5/4/2006 a) (4.73 - 3.97)/(11 - 6) 0.152 ND<3.68 OK (10/5/2006 a) ND<4 OK (7/18/2006 a) (3.68 - 4)/(8 - 7) -0.32 ND<3.63 OK (1/4/2007 a) ND<4 OK (7/18/2006 a) (3.63 - 4)/(9 - 7) -0.185 ND<4.44 OK (3/14/2007 a) ND<4 OK (7/18/2006 a) (4.44- 4)/(10- 7) 0.146667 ND<4.73 OK (6/9/2007 a) ND<4 OK (7/18/2006 a) (4.73 - 4)/(11 - 7) 0.1825 ND<3.63 OK (1/4/2007 a) ND<3.68 OK (10/5/2006 a) (3.63 - 3.68)/(9 - 8) -0.05 ND<4.44 OK (3/14/2007 a) ND<3.68 OK (10/5/2006 a) (4.44 - 3.68)/(10 - 8) 0.38 ND<4.73 OK (6/9/2007 a) ND<3.68 OK (10/5/2006 a) (4.73 - 3.68)/(11 - 8) 0.35 ND<3.63 OK (1/4/2007 a) (4.44 - 3.63)/(10 - 9) 0.81 ND<4.44 OK (3/14/2007 a)

ND<4.73 OK (6/9/2007 a) ND<3.63 OK (1/4/2007 a) (4.73 - 3.63)/(11 - 9) 0.55 ND<4.73 OK (6/9/2007 a) ND<4.44 OK (3/14/2007 a) (4.73 - 4.44)/(11 - 10) 0.29 Number of Q values = 55 Ordered o Values Q

n 1 -1.165 2 -0.64 3 -0.45 4 -0.355 5 -0.32

.6 -0.2075 7 -0.185 8 -0.15 9 -0.145 10 -0.113333 11 -0.0925 12 -0.0685714 13 -0.06625 14 -0.059 15 -0.0575 16 -0.05 17 -0.038 18 -0.0266667 19 -0.00166667 20 0.00625 21 0.0133333 22 0.0157143 23 0.0175 24 0.0266667 25 0.03 26 0.0311111 27 0.04 28 0.057 29 0.0664286 30 0.094375 31 0.096 32 0.1125 33 0.115 34 0.1175 Page 2

. 36 35 37 0.146667 0.134444 0.152 38 0.164 39 0.176 40 0.1825 41 0.195 42 0.2175 43 0.22

.44 0.271667 45 0.274286 46 0.29 47 0.35 48 0.38 49 0.396667 50 0.41 51 0.455 52 0.55 53 0.58 54 0.75 55 0.81 Sen's Estimator (Median Q) is 0.057 Time Period Observations 1/11/2006 1 2/16/2006 1

. 2/17/2006 3/18/20 06 4/13/2006 1

1 1

5/4/2006 1 7/18/2006 1 10/5/2006 1 1/4/2007 1 3/14/2007 1 6/9/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c =220 Groupg Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.038 = Q(17)

Upper limit is 0.176 = Q(39)

-0.038 < 0 < 0.176 indicating no trend in data.

Page 3

Cs-1 37

-J C-)

a C

0 CU C

cC, C.,

C 0

0

(.0 0 I-* 0, (D (0 0 C0 0 0 0 (D 0 0 I,-

0 0 0 CN 0 Q (N QN 0N 0 cN (N (N (0

C) (0 CO Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW131D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<2.06 U (2/10/2006 a) ND<2.77 U (1/10/2006 a) (2.06 - 2.77)/(2 - 1) -0.71 1.53 U (3/20/2006 a) ND<2.77 U (1/10/2006 a) (1.53- 2.77)/(3 - 1) -0.62 ND<4.1 U (4/13/2006 a) ND<2.77 U (1/10/2006 a) (4.1 - 2.77)/(4 - 1) 0.443333 ND<5.69 OK (5/12/2006 a) ND<2.77 U (1/10/2006 a) (5.69 - 2.77)/(5 - 1) 0.73 ND<3.38 OK (7/18/2006 a) ND<2.77 U (1/10/2006 a) (3.38 - 2.77)/(6 - 1) 0.122 ND<3.28 OK (10/18/2006 a) ND<2.77 U (1/10/2006 a) (3.28 - 2.77)/(7 - 1) 0.085 ND<3.29 OK (1/5/2007 a) ND<2.77 U (1/10/2006 a) (3.29 - 2.77)/(8 - 1) 0.0742857 ND<8.49 OK (3/13/2007 a) ND<2.77 U (1/10/2006 a) (8.49 - 2.77)/(9 - 1) 0.715 ND<5.57 OK (6/9/2007 a) ND<2.77 U (1/10/2006 a) (5.57 - 2.77)/(10 - 1) 0.311111 1.53 U (3/20/2006 a) ND<2.06 U (2/10/2006 a) (1.53 - 2.06)/(3 - 2) -0.53 ND<4.1 U (4/13/2006 a) ND<2.06 U (2/10/2006 a) (4.1 - 2.06)/(4 - 2) 1.02 ND<5.69 OK (5/12/2006 a) ND<2.06 U (2/10/2006 a) (5.69 - 2.06)/(5 - 2) 1.21 ND<3.38 OK (7/18/2006 a) ND<2.06 U (2/10/2006 a) (3.38 - 2.06)/(6 - 2) 0.33 ND<3.28 OK (10/18/2006 a) ND<2.06 U (2/10/2006 a) (3.28 - 2.06)/(7 - 2) 0.244 ND<3.29 OK (1/5/2007 a) ND<2.06 U (2/10/2006 a) (3.29 - 2.06)/(8 - 2) 0.205 ND<8.49 OK (3/13/2007 a) ND<2.06 U (2/10/2006 a) (8.49 - 2.06)/(9 - 2) 0.918571 ND<5.57 OK (6/9/2007 a) ND<2.06 U (2/10/2006 a) (5.57 - 2.06)/(10 - 2) 0.43875 ND<4.1 U (4/13/2006 a) 1.53 U (3/20/2006 a) (4.1 - 1.53)/(4 - 3) 2.57 ND<5.69 OK (5/12/2006 a) 1.53 U (3/20/2006 a) (5.69 - 1.53)/(5 - 3) 2.08 ND<3.38 OK (7/18/2006 a) 1.53 U (3/20/2006 a) (3.38 - 1.53)/(6 - 3) 0.616667 ND<3.28 OK (10/18/2006 a) 1.53 U (3/20/2006 a) (3.28 - 1.53)/(7 - 3) 0.4375 ND<3.29 OK (1/5/2007 a) 1.53 U (3/20/2006 a) (3.29 - 1.53)/(8 - 3) 0.352 ND<8.49 OK (3/13/2007 a) 1.53 U (3/20/2006 a) (8.49 - 1.53)/(9 - 3) 1.16 ND<5.57 OK (6/9/2007 a) 1.53 U (3/20/2006 a) (5.57 - 1.53)/(10 - 3) 0.577143 ND<5.69 OK (5/12/2006 a) ND<4.1 U (4/13/2006 a) (5.69 - 4.1)/(5- 4) 1.59 ND<3.38 OK (7/18/2006 a) ND<4.1 U (4/13/2006 a) (3.38 - 4.1)/(6 -4) -0.36 ND<3.28 OK (10/18/2006 a) ND<4.1 U (4/13/2006 a) (3.28 - 4.1)/(7 - 4) -0.273333 ND<3.29 OK (1/5/2007 a) ND<4.1 U (4/13/2006 a) (3.29 - 4.1)/(8- 4) -0.2025 ND<8.49 OK (3/13/2007 a) ND<4.1 U (4/13/2006 a) (8.49 - 4.1)/(9- 4) 0.878 ND<5.57 OK (6/9/2007 a) ND<4.1 U (4/13/2006 a) (5.57 - 4.1)/(10 - 4) 0.245 ND<3.38 OK (7/18/2006 a) ND<5.69 OK (5/12/2006 a) (3.38 - 5.69)/(6 - 5) -2.31 ND<3.28 OK (10/18/2006 a) ND<5.69 OK (5/12/2006 a) (3.28 - 5.69)/(7 - 5) -1.205 ND<3.29 OK (1/5/2007 a) ND<5.69 OK (5/12/2006 a) (3.29 - 5.69)/(8 - 5) -0.8 ND<8.49 OK (3/13/2007 a) ND<5.69 OK (5/12/2006 a) (8.49 - 5.69)/(9 - 5) 0.7 ND<5.57 OK (6/9/2007 a) ND<5.69 OK (5/12/2006 a) (5.57 - 5.69)/(10 - 5) -0.024 ND<3.28 OK (10/18/2006 a) ND<3.38 OK (7/18/2006 a) (3.28 - 3.38)/(7 - 6) -0.1 ND<3.29 OK (1/5/2007 a) ND<3.38 OK (7/18/2006 a) (3.29 - 3.38)/(8 - 6) -0.045 ND<8.49 OK (3/13/2007 a) ND<3.38 OK (7/18/2006 a) (8.49 - 3.38)/(9 - 6) 1.70333 ND<5.57 OK (6/9/2007 a) ND<3.38 OK (7/18/2006 a) (5.57 - 3.38)/(10 - 6) 0.5475 ND<3.29 OK (1/5/2007 a) ND<3.28 OK (10/18/2006 a) (3.29 - 3.28)/(8 - 7) 0.01 ND<8.49 OK (3/13/2007 a) ND<3.28 OK (10/18/2006 a) (8.49 - 3.28)/(9 - 7) 2.605 Page 1

ND<5.57 OK (6/9/2007 a) ND<3.28 OK (10/18/2006 a) (5.57 - 3.28)/(10 - 7) 0.763333 ND<8.49 OK (3/13/2007 a) ND<3.29 OK (1/5/2007 a) (8.49 - 3.29)/(9 - 8) 5.2 ND<5.57 OK (6/9/2007 a) ND<3.29 OK (1/5/2007 a) (5.57- 3.29)/(10- 8) 1.14 ND<5.57 OK (6/9/2007 a) ND<8.49 OK (3/13/2007 a) (5.57 - 8.49)/(10- 9) -2.92 Number of Q values = 45 Ordered Q Values n Q 1 -2.92 2 -2.31 3 -1.205 4 -0.8 5 -0.71 6 -0.62 7 -0.53 8 -0.36 9 -0.273333 10 -0.2025 11 -0.1 12 -0.045 13 -0.024 14 0.01

.16 15 17 0.0742857 0.085 0,122 18 0.205 19 0.244 20 0.245 21 0.311111 22 0.33 23 0.352

.24 0.4375 25 0.43875 26 0.443333 27 0.5475 28 0.577143 29 0.616667 30 0.7 31 0.715 32 0.73 33 0.763333 34 0.878 35 0.918571 36 1.02 37 1.14 38 1.16 39 1.21 40 1.59 41 1.70333 42 2.08 43 2.57 44 2.605 45 5.2 Page 2

Sen's Estimator (Median Q) is 0.352 Time Period Observations 1/10/2006 1 2/10/2006 1 3/20/2006 1 4/13/2006 1 5/12/2006 1 7/18/2006 1 10/18/2006 1 1/5/2007 1 3/13/2007 1 6/9/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485

. C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.024 = Q(13)

Upper limit is 0.763333 = Q(33)

-0.024 < 0 < 0.763333 indicating no trend in data.

Page 3

Cs-I 37 Time-Series Graph of MW131S 5

3I SapeDt 0

Page 1

. Sen's Parameter:Slope Analysis Cs-137 Location: MW131S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<2.63 U (2/12/2006 a) ND<4.72 U (1/10/2006 a) (2.63 - 4.72)/(2 - 1) -2.09 ND<3.47 U (3/20/2006 a) ND<4.72 U (1/10/2006 a) (3.47 - 4.72)/(3 - 1) -0.625 ND<3.7 U (4/13/2006 a) ND<4.72 U (1/10/2006 a) (3.7 - 4.72)/(4 - 1) -0.34 ND<4.45 OK (5/12/2006 a) ND<4.72 U (1/10/2006 a) (4.45 - 4.72)/(5 - 1) -0.0675 ND<2.65 OK (7/18/2006 a) ND<4.72 U (1/10/2006 a) (2.65 - 4.72)/(6 - 1) -0.414 ND<4.16 OK (10/18/2006 a) ND<4.72 U (1/10/2006 a) (4.16 - 4.72)/(7 - 1) -0.0933333 ND<4.4 OK (1/4/2007 a) ND<4.72 U (1/10/2006 a) (4.4- 4.72)/(8 - 1) -0.0457143 ND<4.13 OK (3/13/2007 a) ND<4.72 U (1/10/2006 a) (4.13 - 4.72)/(9 - 1) -0.07375 ND<4.45 OK (6/9/2007 a) ND<4.72 U (1/10/2006 a) (4.45- 4.72)/(10 - 1) -0.03 ND<3.47 U (3/20/2006 a) ND<2.63 U (2/12/2006 a) (3.47 - 2.63)/(3 - 2) 0.84 ND<3.7 U (4/13/2006 a) ND<2.63 U (2/12/2006 a) (3.7 - 2.63)/(4 - 2) 0.535 ND<4.45 OK (5/12/2006 a) ND<2.63 U (2/12/2006 a) (4.45 - 2.63)/(5 - 2) 0.606667 ND<2.65 OK (7/18/2006 a) ND<2.63 U (2/12/2006 a) (2.65 - 2.63)/(6 - 2) 0.005 ND<4.16 OK (10/18/2006 a) ND<2.63 U (2/12/2006 a) (4.16 - 2.63)/(7 - 2) 0.306 ND<4.4 OK (1/4/2007 a) ND<2.63 U (2/12/2006 a) (4.4 - 2.63)/(8 - 2) 0.295 ND<4.13 OK (3/13/2007 a) ND<2.63 U (2/12/2006 a) (4.13 - 2.63)/(9 - 2) 0.214286 ND<4.45 OK (6/9/2007 a) ND<2.63 U (2/12/2006 a) (4.45 - 2.63)/(10- 2) 0.2275 ND<3.7 U (4/13/2006 a) ND<3.47 U (3/20/2006 a) (3.7 - 3.47)/(4 - 3) 0.23 ND<4.45 OK (5/12/2006 a) ND<3.47 U (3/20/2006 a) (4.45 - 3.47)/(5 - 3) 0.49 ND<2.65 OK (7/18/2006 a) ND<3.47 U (3/20/2006 a) (2.65 -3.47)/(6 - 3) -0.273333 ND<4.16 OK (10/18/2006 a) ND<3.47 U (3/20/2006 a) (4.16 - 3.47)/(7 - 3) 0.1725 ND<4.4 OK (1/4/2007 a) ND<3.47 U (3/20/2006 a) (4.4 - 3.47)/(8 - 3) 0.186 ND<4.13 OK (3/13/2007 a) ND<3.47 U (3/20/2006 a) (4.13 - 3.47)/(9 - 3) 0.11 ND<4.45 OK (6/9/2007 a) ND<3.47 U (3/20/2006 a) (4.45 - 3.47)/(10- 3) 0.14 ND<4.45 OK (5/12/2006 a) ND<3.7 U (4/13/2006 a) (4.45 - 3.7)/(5 - 4) 0.75 ND<2.65 OK (7/18/2006 a) ND<3.7 U (4/13/2006 a) (2.65 - 3.7)/(6 - 4) -0.525 ND<4.16 OK (10/18/2006 a) ND<3.7 U (4/13/2006 a) (4.16 - 3.7)/(7 - 4) 0.153333 ND<4.4 OK (1/4/2007 a) ND<3.7 U (4/13/2006 a) (4.4 - 3.7)/(8 - 4) 0.175 ND<4.13 OK (3/13/2007 a) ND<3.7 U (4/13/2006 a) (4.13 - 3.7)/(9- 4) 0.086 ND<4.45 OK (6/9/2007 a) ND<3.7 U (4/13/2006 a) (4.45 - 3.7)/(10- 4) 0.125 ND<2.65 OK (7/18/2006 a) ND<4.45 OK (5/12/2006 a) (2.65 - 4.45)/(6 - 5) -1.8 ND<4.16 OK (10/18/2006 a) ND<4.45 OK (5/12/2006 a) (4.16 - 4.45)/(7 - 5) -0.145 ND<4.4 OK (1/4/2007 a) ND<4.45 OK (5/12/2006 a) (4.4 - 4.45)/(8 - 5) -0.0166667 ND<4.13 OK (3/13/2007 a) ND<4;45 OK (5/12/2006 a) (4.13 - 4.45)/(9 - 5) -0.08 ND<4.45 OK (6/9/2007 a) ND<4.45 OK (5/12/2006 a) (4.45- 4.45)/(10 - 5) 0 ND<4.16 OK (10/18/2006 a) ND<2.65 OK (7/18/2006 a) (4.16 - 2.65)/(7 - 6) 1.51 ND<4.4 OK (1/4/2007 a) ND<2.65 OK (7/18/2006 a) (4.4 - 2.65)/(8 - 6) 0.875 ND<4.13 OK (3/13/2007 a) ND<2.65 OK (7/18/2006 a) (4.13 - 2.65)/(9 - 6) 0.493333 ND<4.45 OK (6/9/2007 a) ND<2.65 OK (7/18/2006 a) (4.45- 2.65)/(10 - 6) 0.45 ND<4.4 OK (1/4/2007 a) ND<4.16 OK (10/18/2006 a) (4.4 - 4.16)/(8 - 7) 0.24 ND<4.13 OK (3/13/2007 a) ND<4.16 OK (10/18/2006 a) (4.13 - 4.16)/(9- 7) -0.015 Page 1

ND<4.45 OK (6/9/2007 a) ND<4.16 OK (10/18/2006 a) (4.45 - 4.16)/(10 - 7) 0.0966667 ND<4.13 OK (3/13/2007 a) ND<4.4 OK (1/4/2007 a) (4.13 - 4.4)/(9 - 8) -0.27 ND<4.45 OK (6/9/2007 a) ND<4.4 OK (1/4/2007 a) (4.45- 4.4)/(10 - 8) 0.025 ND<4.45 OK (6/9/2007 a) ND<4.13 OK (3/13/2007 a) (4.45 - 4.13)/(10 - 9) 0.32 Number of Q values = 45 Ordered Q Values n Q 1 -2.09 2 -1.8 3 -0.625 4 -0.525 5 -0.414 6 -0.34 7 -0.273333 8 -0.27 9 -0.145 10 -0.0933333 11 -0.08 12 -0.07375 13 -0.0675 14 -0.0457143

. 15 16 17

-0.03

-0.0166667

-0.015 18 0 19 0.005 20 0.025 21 0.086 22 0.0966667 23 0.11 24 0.125 25 0.14 '

26 0.153333 27 0.1725 28 0.175 29 0.186 30 0.214286 31 0.2275 32 0.23 33 0.24 34 0.295 35 0.306 36 0.32 37 0.45 38 0.49 39 0.493333 40 0.535 41 0.606667 42 0.75 43 0.84 44 0.875 45 1.51 Page 2

Sen's Estimator (Median Q) is 0.11 Tied Group Value Members 1 4.45 2 Time Period Observations 1/10/2006 1 2/12/2006 1 3/20/2006 1 4/13/2006 1 5/12/2006 1 7/18/2006 1 10/18/2006 1 1/4/2007 1 3/13/2007 1 6/9/2007 1 There are 0 time periods with multiple data A =18 B=0 C =0.

D=0 E=2 F=0 a = 2250 b = 6480

. c = 180 Group Variance = 124 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 18.3163 M1 = (45 - 18.3163)/2.0 = 13.3418 M2 = (45 + 18.3163)/2.0 + 1 = 32.6582 Lower limit is -0.0675 = Q(13)

Upper limit is 0.24 = Q(33)

-0.0675 < 0 < 0.24 indicating no trend in data.

Page 3

Cs-1 37 Time-Series Graph of MW132D 5

4 0 2!

1.

0 0:

C, ,-

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW132D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a ND<3.44 U (2/17/2006 a) ND<2.53 U (1/10/2006 a) (3.44 - 2.53)/(2 - 1) 0.91 ND<2.31 U (3/18/2006 a) ND<2.53 U (1/10/2006 a) (2.31 - 2.53)/(3 - 1) -0.11 ND<3.14 U (4/4/2006 a) ND<2.53 U (1/10/2006 a) (3.14 - 2.53)/(4 - 1) 0.203333 ND<4.98 OK (5/15/2006 a) ND<2.53 U (1/10/2006 a) (4.98 - 2.53)/(5 - 1) 0.6125 ND<3.28 OK (7/10/2006 a) ND<2.53 U (1/10/2006 a) (3.28- 2.53)/(6 - 1) 0.15 ND<2.27 OK (10/4/2006 a) ND<2.53 U (1/10/2006 a) (2.27- 2.53)/(7 - 1) -0.0433333 ND<3.25 OK (11/15/2006 a) ND<2.53 U (1/10/2006 a) (3.25- 2.53)/(8 - 1) 0.102857 ND<3.64 OK (1/4/2007 a) IND<2.53 U (1/10/2006 a) (3.64- 2.53)/(9 - 1) 0.13875 ND<2.61 OK (3/12/2007 a) ND<2.53 U (1/10/2006 a) (2.61 - 2.53)/(10 - 1) 0.00888889 ND<4.83 OK (6/11/2007 a) ND<2.53 U (1/10/2006 a) (4.83 - 2.53)/(11 - 1) 0.23 ND<2.31 U (3/18/2006 a) ND<3.44 U (2/17/2006 a) (2.31 - 3.44)/(3 - 2) -1.13 ND<3.14 U (4/4/2006 a) .ND<3.44 U (2/17/2006 a) (3.14- 3.44)/(4- 2) -0.15 ND<4.98 OK (5/15/2006 a) ND<3.44 U (2/17/2006 a) (4.98 - 3.44)/(5 - 2) 0.513333 ND<3.28 OK (7/10/2006 a) ND<3.44 U (2/17/2006 a) (3.28 - 3.44)/(6 - 2) -0.04 ND<2.27 OK (10/4/2006 a) ND<3.44 U (2/17/2006 a) (2.27 - 3.44)/(7 - 2) -0.234 ND<3.25 OK (11/15/2006 a) ND<3.44 U (2/17/2006 a) (3.25 - 3.44)/(8 - 2) -0.0316667

ND<3.64 OK (1/4/2007 a) ND<3.44 U (2/17/2006 a) (3.64 - 3.44)/(9 - 2) 0.0285714 ND<2.61 OK (3/12/2007 a) ND<3.44 U (2/17/2006 a) (2.61 - 3.44)/(10- 2) -0.10375 ND<4.83 OK (6/11/2007 a) ND<3.44 U (2/17/2006 a) (4.83 - 3.44)/(11 - 2) 0.154444 ND<3.14 U (4/4/2006 a) ND<2.31 U (3/18/2006 a) (3.14 - 2.31)/(4 - 3) 0.83 ND<4.98 OK (5/15/2006 a) ND<2.31 U (3/18/2006 a) (4.98 - 2.31)/(5 - 3) 1.335 ND<3.28 OK (7/10/2006 a) ND<2.31 U (3/18/2006 a) (3.28 - 2.31)/(6 - 3) 0.323333 ND<2.27 OK (10/4/2006 a) ND<2.31 U (3/18/2006 a) (2.27 - 2.31)/(7 - 3) -0.01 ND<3.25 OK (11/15/2006 a) ND<2.31 U (3/18/2006 a) (325 - 2.31)/(8 - 3) 0.188 ND<3.64 OK (1/4/2007 a) ND<2.31 U (3/18/2006 a) (3.64 - 2.31)/(9 - 3) 0.221667 ND<2.61 OK (3/12/2007 a) ND<2.31 U (3/18/2006 a) (2.61 - 2.31)/(10- 3) 0.0428571 ND<4.83 OK (6/11/2007 a) ND<2.31 U (3/18/2006 a) (4.83 - 2.31)/(11-- 3) 0.315 ND<4.98 OK (5/15/2006 a) ND<3.14 U (4/4/2006 a) (4.98 - 3.14)/(5- 4) 1.84 ND<3.28 OK (7/10/2006 a) ND<3.14 U (4/4/2006 a) (3.28 - 3.14)/(6- 4) 0.07 ND<2.27 OK (10/4/2006 a) ND<3.14 U (4/4/2006 a) (2.27- 3.14)/(7- 4) -0.29 ND<3.25 OK (11 /15/2006 a) ND<3.14 U (4/4/2006 a) (3.25- 3.14)/(8- 4) 0.0275 ND<3.64 OK (1/4/2007 a) ND<3.14 U (4/4/2006 a) (3.64 - 3.14)/(9 - 4) 0.1 ND<2.61 OK (3/12/2007 a) ND<3.14 U (4/4/2006 a) (2.61 - 3.14)/(10 - 4) -0.0883333 ND<4.83 OK (6/11/2007 a) ND<3.14 U (4/4/2006 a) (4.83 - 3.14)/(11 - 4) 0.241429 ND<3.28 OK (7/10/2006 a) ND<4.98 OK (5/15/2006 a) (3.28 - 4.98)/(6 - 5) -1.7 ND<2.27 OK (10/4/2006 a) ND<4.98 OK (5/15/2006 a) (2.27 - 4.98)/(7 - 5) -1.355 ND<3.25 OK (11/15/2006 a) ND<4.98 OK (5/15/2006 a) (3.25 - 4.98)/(8 - 5) -0.576667 ND<3.64 OK (1/4/2007 a) ND<4.98 OK (5/15/2006 a) (3.64 - 4.98)/(9 - 5) -0.335 ND<2.61 OK (3/12/2007 a) ND<4.98 OK (5/15/2006 a) (2.61 - 4.98)/(10 - 5) -0.474 ND<4.83 OK (6/11/2007 a) ND<4.98 OK (5/15/2006 a) (4.83 - 4.98)/(11 - 5) -0.025

. ND<2.27 OK (10/4/2006 a)

ND<3.25 OK.(11/15/2006 a)

ND<3.28 OK (7/10/2006 a)

(2.27 - 3.28)/(7 - 6)

(3.25 - 3.28)/(8 - 6)

-1.01

-0.015 Page 1

. ND<2.61 ND<3.64 OK OK (3/12/2007 (1/4/2007 a)a)

ND<4.83 OK (6/11/2007 a)

ND<3.28 OK (7/10/2006 a)

(3.64 - 3.28)/(9 - 6)

(2.61 - 3.28)/(10- 6)

(4.83 - 3.28)/(11 - 6) 0.12

-0.1675 0.31 ND<3.25 OK (11/15/2006 a) ND<2.27 OK (10/4/2006 a) (3.25 - 2.27)/(8 - 7) 0.98 ND<3.64 OK (1/4/2007 a) ND<2.27 OK (10/4/2006 a) (3.64 - 2.27)/(9 - 7) 0.685 ND<2.61 OK (3/12/2007 a) ND<2.27 OK (10/4/2006 a) (2.61 - 2.27)/(10- 7) 0.113333 ND<4.83 OK (6/11/2007 a) ND<2.27 OK (10/4/2006 a) (4.83 - 2.27)/(11 - 7) 0.64 ND<3.64 OK (1/4/2007 a) ND<3.25 OK (11/15/2006 a) (3.64 - 3.25)/(9 - 8) 0.39 ND<2.61 OK (3/12/2007 a) ND<3.25 OK (11/15/2006 a) (2.61 - 3.25)/(10- 8) -0.32 ND<4.83 OK (6/11/2007 a) ND<3.25 OK (11/15/2006 a) (4.83 - 3.25)/(11 - 8) 0.526667 ND<2.61 OK (3/12/2007 a) ND<3.64 OK (1/4/2007 a) -1.03 (2.61 - 3.64)/(10- 9)

ND<4.83 OK (6/11/2007 a) ND<3.64 OK (1/4/2007 a) (4.83 - 3.64)/(11 - 9) 0.595 ND<4.83 OK (6/11/2007 a) ND<2.61 OK (3/12/2007 a) (4.83- 2.61)/(11 - 10) 2.22 Number of Q values = 55 Ordered Q Values n Q 1 -1.7 2 -1.355 3 -1.13 4 -1.03 5 -1.01 6 -0.576667 7 -0.474 8 -0.335 9 -0.32 10 -0.29 11 -0.234 12 -0.1675 13 -0.15 14 -0.11 15 -0.10375 16 -0.0883333 17 -0.0433333 18 -0.04 19 -0.0316667 20 -0.025 21 -0.015 22 -0.01 23 0.00888889 24 0.0275 25 0.0285714 26 0.0428571 27 0.07 28 0.1 29 0.102857 30 0.113333

. 31 32 33 0.12 0.13875 0.15 34 0.154444 Page 2

O 36 35 0.203333 0.188 37 0.221667 38 0.23 39 0.241429 40 0.31 41 0.315 42 0.323333 43 0.39 44 0.513333 45 0.526667 46 0.595 47 0.6125 48 0.64 49 0.685 50 0.83 51 0.91 52 0.98 53 1.335 54 1.84 55 2.22 Sen's Estimator (Median Q) is 0.1 Time Period Observations 1/10/2006 1 2/17/2006 1 3/18/2006 1 4/4/2006 1 5/15/2006 1 7/10/2006 1 10/4/2006 1 11/15/2006 1 1/4/2007 1 3/12/2007 1 6/11/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.0433333 = Q(17)

Upper limit is 0.241429 = Q(39)

-0.0433333 < 0 < 0.241429 indicating no trend in data.

Page 3

Cs-1 37 i-3 CD 0

c 0

(0 CD (0 CD C- rN 0 o) C> D 0) 0> C C 0 o) C 0 0ý 0 CD a Moc Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW132S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<3.38 U (2/17/2006 a) ND<2.63 U (1/10/2006 a) (3.38 - 2.63)/(2 - 1) 0.75 ND<3.23 U (3/17/2006 a) ND<2.63 U (1/10/2006 a) (3.23 - 2.63)/(3 - 1) 0.3 ND<4.19 U (4/13/2006 a) ND<2.63 U (1/10/2006 a) (4.19- 2.63)/(4 - 1) 0.52 ND<5.89 OK (5/12/2006 a) ND<2.63 U (1/10/2006 a) (5.89 - 2.63)/(5 - 1) 0.815 ND<3.29 OK (7/10/2006 a) ND<2.63 U (1/10/20,06 a) (3.29 - 2.63)/(6 - 1) 0.132 ND<2.27 OK (110/4/2006 a) ND<2.63 U (1/10/2006 a) (2.27 - 2.63)/(7 - 1) -0.06 ND<3.91 OK (11/15/2006 ~) ND<2.63 U (1/10/2006 a) (3.91 - 2.63)/(8 - 1) 0.182857 ND<2.96 OK (1/4/2007 a) ND<2.63 U (1/10/2006 a) (2.96 - 2.63)/(9 - 1) 0.04125 ND<2.69 OK (3/14/2007 a) ND<2.63 U (1/10/2006 a) (2.69 - 2.63)/(10 - 1) 0.00666667 ND<3.985 OK (6/12/2007 ~) ND<2.63 U (1/10/2006 a) (3.985- 2.63)/(11 - 1) 0.1355 ND<3.23 U (3/17/2006 a) ND<3.38 U (2/17/2006 a) (3.23 - 3.38)/(3 - 2) -0.15 ND<4.19 U (4/13/2006 a) ND<3.38 U (2/17/2006 a) (4.19 - 3.38)/(4 - 2) 0.405 ND<5.89 OK (5/12/2006 a) ND<3.38 U (2/17/2006 a) (5.89 - 3.38)/(5 - 2) 0.836667 ND<3.29 OK (7/10/2006 a) ND<3.38 U (2/17/2006 a) (3.29 - 3.38)/(6 - 2) -0.0225 ND<2.27 OK (10/4/2006 a) ND<3.38 U (2/17/2006 a) (2.27 - 3.38)/(7 - 2) -0.222

. ND<3.91 OK (11/15/2006 ~)

ND<2.96 OK (1/4/2007 a)

ND<2.69 OK (3/14/2007 a)

ND<3.38 ND<3.38 ND<3.38 U (2/17/2006 U (2/17/2006 U (2/17/2006 a) a)

a)

(3.91 - 3.38)/(8 - 2)

(2.96 - 3.38)/(9 - 2)

(2.69 - 3.38)/(10 - 2) 0.0883333

-0.06

-0.08625 ND<3.985 OK (6/12/2007 ~) ND<3.38 U (2/17/2006 a) (3.985 - 3.38)/(11 - 2) 0.0672222 ND<4.19 U (4/13/2006 a) ND<3.23 U (3/17/2006 a) (4.19- 3.23)/(4 - 3) 0.96 ND<5.89 OK (5/12/2006 a) ND<3.23 U (3/17/2006 a) (5.89 - 3.23)/(5 - 3) 1.33 ND<3.29 OK (7/10/2006 a) ND<3.23 U (3/17/2006 a) (3.29 - 3.23)/(6 - 3) 0.02 ND<2.27 OK (10/4/2006 a) ND<3.23 U (3/17/2006 a) (2.27 - 3.23)/(7 - 3) -0.24 ND<3.91 OK (11/15/2006 ~) ND<3.23 U (3/17/2006 a) (3.91 - 3.23)/(8 - 3) 0.136 ND<2.96 OK (1/4/2007 a) ND<3.23 U (3/17/2006 a) (2.96 - 3.23)/(9 - 3) -0.045 ND<2.69 OK (3/14/2007 a) ND<3.23 U (3/17/2006 a) (2.69 - 3.23)/(10- 3) -0.0771429 ND<3.985 OK (6/12/2007 -) ND<3.23 U (3/17/2006 a) (3.985 - 3.23)/(11 - 3) 0.094375 ND<5.89 OK (5/12/2006 a) ND<4.19 U (4/13/2006 a) (5.89 - 4.19)/(5 - 4) 1.7 ND<3.29 OK (7/10/2006 a) ND<4.19 U (4/13/2006 a) (3.29 - 4.19)/(6- 4) -0.45 ND<2.27 OK (10/4/2006 a) ND<4.19 U (4/13/2006 a) (2.27 - 4.19)/(7 - 4) -0.64 ND<3.91 OK (11/15/2006 ~) ND<4.19 U (4/13/2006 a) (3.91 - 4.19)/(8 - 4) -0.07 ND<2.96 OK (1/4/2007 a) ND<4.19 U (4/13/2006 a) (2.96 - 4.19)/(9- 4) -0.246 ND<2.69 OK (3/14/2007 a) ND<4.19 U (4/13/2006 a) (2.69 - 4.19)/(10- 4) -0.25 ND<3.985 OK (6/12/2007 ~) ND<4.19 U (4/13/2006 a) (3.985 - 4.19)/(11 - 4) -0.0292857 ND<3.29 OK (7/10/2006 a) ND<5.89 OK (5/12/2006 a) (3.29 - 5.89)/(6 - 5) -2.6 ND<2.27 OK (10/4/2006 a) ND<5.89 OK (5/12/2006 a) (2.27 - 5.89)/(7 - 5) -1.81 ND<3.91 OK (11/15/2006 ~) ND<5.89 OK (5/12/2006 a) (3.91 - 5.89)/(8 - 5) -0.66 ND<2.96 OK (1/4/2007 a) ND<5.89 OK (5/12/2006 a) (2.96 - 5.89)/(9 - 5) -0.7325 ND<2.69 OK (3/14/2007 a) ND<5.89 OK (5/12/2006 a) (2.69 - 5.89)/(10 - 5) --0.64 ND<3.985 OK (6/12/2007 -) ND<5.89 OK (5/12/2006 a) (3.985 - 5.89)/(11 - 5) -0.3175 ND<3.29 OK (7/10/2006 a)

ND<2.27 OK (10/4/2006 a) (2.27 - 3.29)/(7 - 6) -1.02 ND<3.91 OK (11/15/2006 -) ND<3.29 OK (7/10/2006 a) (3.91 - 3.29)/(8 - 6) 0.31 Page 1

. ND<3.29 OK (7/10/2006 a) (2.96 - 3.29)/(9 - 6) -0.11 ND<2.69 ND<2.96 OK OK (3/14/2007 (1/4/2007 a)a) ND<3.29 OK (7/10/2006 a) (2.69- 3.29)/(10 - 6) -0.15 ND<3.985 OK (6/12/2007 ~) ND<3.29 OK (7/10/2006 a) (3.985 - 3.29)/(11 - 6) 0.139 ND<3.91 OK (11/15/2006 ~) ND<2.27 OK (10/4/2006 a) (3.91 - 2.27)/(8 - 7) 1.64 ND<2.96 OK (1/4/2007 a) ND<2.27 OK (10/4/2006 a) (2.96 - 2.27)/(9 - 7) 0.345 ND<2.69 OK (3/14/2007 a) ND<2.27 OK (10/4/2006 a) (2.69 - 2.27)/(10 - 7) 0.14 ND<3.985 OK (6/12/2007 ~) ND<2.27 OK (10/4/2006 a) (3.985 - 2.27)/(11 - 7) 0.42875 ND<2.96 OK (1/4/2007 a) ND<3.91 OK (11/15/2006 ~) (2.96 - 3.91)/(9 - 8) -0.95 ND<2.69 OK (3/14/2007 a) ND<3.91 OK (11/15/2006 ~) (2.69 - 3.91 )/(10- 8) -0.61 ND<3.985 OK (6/12/2007 -) ND<3.91 OK (11/15/2006 ~) (3.985 - 3.91)/(11 - 8) 0.025 ND<2.69 OK (3/14/2007 a) ND<2.96 OK (1/4/2007 a) (2.69 - 2.96)/(10- 9)

-0.27 ND<3.985 OK (6/12/2007 ~) ND<2.96 OK (1/4/2007 a) (3.985 - 2.96)/(11 - 9) 0.5125 ND<3.985 OK (6/12/2007 ~) ND<2.69 OK (3/14/2007 a) (3.985 - 2.69)/(11 - 10) 1.295 Number of 0 values = 55 Ordered 0 Values Q

n 1 -2.6 2 -1.81 3 -1.02 4 -0.95 5 -0.7325 6 -0.66 7 -0.64 8 -0.64 9 -0.61 10 -0.45 11 -0.3175 12 -0.27 13 -0.25 14 -0.246 15 -0.24 16 -0.222 17 -0.15 18 -0.15 19 -0.11 20 -0.08625 21 -0.0771429 22 -0.07 23 -0.06 24 -0.06 25 -0.045 26 -0.0292857 27 -0.0225 28 0.00666667 29 0.02 30 0.025 31 0.04125 32 0.0672222 33 0.0883333 34 0.094375 Page 2

. 36 35 37 0.1355 0.132 0.136 38 0.139 39 0.14 40 0.182857 41 0.3 42 0.31 43 0.345 44 0.405 45 0.42875 46 0.5125 47 0.52 48 0.75 49 0.815 50 0.836667 51 0.96 52 1.295 53 1.33 54 1.64 55 1.7 Sen's Estimator (Median Q) is 0.00666667 Time Period Observations 1/10/2006 1 2/17/2006 1

. 3/17/2006 4/13/2006 5/12/2006 1

1 1

7/10/2006 1 10/4/2006 1 11/15/2006 1 1/4/2007 1 3/14/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165

For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.15 = Q(17)

Upper limit is 0.14 = Q(39)

-0.15 < 0 < 0.14 indicating no trend in data.

Page 3

Cs-1 37 0

ISample Date Page 1

Sen's Slope Analysis Parameter: Cs-i 37 Location: MW133 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level Xj Xk (Xj - Xk)/(j-k) 0 ND<3.65 U (1/10/2006 a) ND<3.63 U (1/9/2006 a) (3.65 - 3.63)/(2 - 1) 0.02 ND<3.24 U (2/17/2006 a) ND<3.63 U (1/9/2006 a) (3.24 - 3.63)/(3 - 1) -0.195 ND<3.03 U (3/18/2006 a) ND<3.63 U (1/9/2006 a) (3.03 - 3.63)/(4 - 1) -0.2 ND<3.2 U (4/13/2006 a) ND<3.63 U (1/9/2006 a) (3.2- 3.63)/(5- 1) -0.1075 ND<4.96 U (4/14/2006 a) ND<3.63 U (1/9/2006 a) (4.96 - 3.63)/(6 - 1) 0.266 ND<5.5 OK (5/12/2006 a) ND<3.63 U (1/9/2006 a) (5.5- 3.63)/(7 - 1) 0.311667 ND<3.05 OK (7/16/2006 a) ND<3.63 U (1/9/2006 a) (3.05 - 3.63)/(8 - 1) -0.0828571 ND<3.225 OK (10/10/2006 ~) ND<3.63 U (1/9/2006 a) (3.225 - 3.63)/(9 - 1) -0.050625 ND<4.26 OK (1/3/2007 a) ND<3.63 U (1/9/2006 a) (4.26 - 3.63)/(10 - 1) 0.07 ND<6.42 OK (3/14/2007 a) ND<3.63 U (1/9/2006 a) (6.42 - 3.63)/(11 - 1) 0.279 ND<4.6 OK (6/9/2007 a) ND<3.63 U (1/9/2006 a) (4.6 - 3.63)/(12 - 1) 0.0881818 ND<3.24 U (2/17/2006 a) ND<3.65 U (1/10/2006 a) (3.24 - 3.65)/(3 - 2) -0.41 ND<3.03 U (3/18/2006 a) ND<3.65 U (1/10/2006 a) (3.03 - 3.65)/(4 - 2) -0.31 ND<3.2 U (4/13/2006 a) ND<3.65 U (1/10/2006 a) (3.2 - 3.65)/(5 - 2) -0.15 ND<4.96 U (4/14/2006 a) ND<3.65 U (1/10/2006 a) (4.96 - 3.65)/(6 - 2) 0.3275

. ND<5.5 OK (5/12/2006 a)

ND<3.05 OK (7/16/2006 a)

ND<3.225 OK (10/10/2006 ~)

ND<3.65 ND<3.65 ND<3.65 U (1/10/2006 U (1/10/2006 U (1/10/2006 a) a)

a)

(5.5 - 3.65)/(7 - 2)

(3.05 - 3.65)/(8 - 2)

(3.225 - 3.65)/(9 - 2) 0.37

-0.1

-0.0607143 ND<4.26 OK (1/3/2007 a) ND<3.65 U (1/10/2006 a) (4.26 - 3.65)/(10 - 2) 0.07625 ND<6.42 OK (3/14/2007 a) ND<3.65 U (1/10/2006 a) (6.42 - 3.65)/(11 - 2) 0.307778 ND<4.6 OK (6/9/2007 a) ND<3.65 U (1/10/2006 a) (4.6 - 3.65)/(12 - 2) 0.095 ND<3.03 U (3/18/2006 a) ND<3.24 U (2/17/2006 a) (3.03 - 3.24)/(4 - 3) -0.21 ND<3.2 U (4/13/2006 a) ND<3.24 U (2/17/2006 a) (3.2 - 3.24)/(5 - 3) -0.02 ND<4.96 U (4/14/2006 a) ND<3.24 U (2/17/2006 a) (4.96 - 3.24)/(6 - 3) 0.573333 ND<5.5 OK (5/12/2006 a) ND<3.24 U (2/17/2006 a) (5.5 - 3.24)/(7 - 3) 0.565 ND<3.05 OK (7/16/2006 a) ND<3.24 U (2/17/2006 a) (3.05 - 3.24)/(8 - 3) -0.038 ND<3.225 OK (10/10/2006 ~) ND<3.24 U (2/17/2006 a) (3.225 - 3.24)/(9 - 3) -0.0025 ND<4.26 OK (1/3/2007 a) ND<3.24 U (2/17/2006 a) (4.26 - 3.24)/(10 - 3) 0.145714 ND<6.42 OK (3/14/2007 a) ND<3.24 U (2/17/2006 a) (6.42 - 3.24)/(11 - 3) 0.3975 ND<4.6 OK (6/9/2007 a) ND<3.24 U (2/17/2006 a) (4.6 - 3.24)/(12 - 3) 0.151111 ND<3.2 U (4/13/2006 a) ND<3.03 U (3/18/2006 a) (3.2 - 3.03)/(5 - 4) 0.17 ND<4.96 U (4/14/2006 a) ND<3.03 U (3/18/2006 a) (4.96 - 3.03)/(6 - 4) 0.965 ND<5.5 OK (5/12/2006 a) ND<3.03 U (3/18/2006 a) (5.5 - 3.03)/(7 - 4) 0.823333 ND<3.05 OK (7/16/2006 a) ND<3.03 U (3/18/2006 a) (3.05 - 3.03)/(8 - 4) 0.005 ND<3.225 OK (10/10/2006 ~) ND<3.03 U (3/18/2006 a) (3.225 - 3.03)/(9 - 4) 0.039 ND<4.26 OK (1/3/2007 a) ND<3.03 U (3/18/2006 a) (4.26 - 3.03)/(10 - 4) 0.205 ND<6.42 OK (3/14/2007 a) ND<3.03 U (3/18/2006 a) (6.42 - 3.03)/(11 - 4) 0.484286 ND<4.6 OK (6/9/2007 a) ND<3.03 U (3/18/2006 a) (4.6 - 3.03)/(12 - 4) 0.19625 ND<4.96 U (4/14/2006 a) ND<3.2 U (4/13/2006 a) (4.96 - 3.2)/(6 - 5) 1.76

. ND<5.5 OK (5/12/2006 a)

ND<3.05 OK (7/16/2006 a)

ND<3.225 OK (10/10/2006 ~)

ND<3.2 ND<3.2 ND<3.2 U (4/13/2006 U (4/13/2006 U (4/13/2006 a) a)

a)

(5.5 - 3.2)/(7 - 5)

(3.05 - 3.2)/(8: 5)

(3.225 - 3.2)/(9 - 5) 1.15

-0.05 0.00625 ND<4.26 OK (1/3/2007 a) ND<3.2 U (4/13/2006 a) (4.26- 3.2)/(10- 5) 0.212 Page 1

ND<3.2 U (4/13/2006 a) (6.42 - 3.2)/(11 - 5) 0.536667 O ND<6.42OK ND<4.6 OK(6/9/2007 (3/14/2007 a) a) ND<3.2 U (4/13/2006 a) (4.6 - 3.2)/(12 - 5) 0.2 ND<5.5 OK (5/12/2006 a) ND<4.96 U (4/14/2006 a) (5.5 - 4.96)/(7 - 6) 0.54 ND<3.05 OK (7/16/2006 a) ND<4.96 U (4/14/2006 a) (3.05 - 4.96)/(8- .6) -0.955 ND<3.225 OK (10/10/2006 ~) ND<4.96 U (4/14/2006 a) (3.225 - 4.96)/(9 - 6) -0.578333 ND<4.26 OK (1/3/2007 a) ND<4.96 U (4/14/2006 a) (4.26 - 4.96)/(10- 6) -0.175 ND<6.42 OK (3/14/2007 a) ND<4.96 U (4/14/2006 a) (6.42 - 4.96)/(11 - 6) 0.292 ND<4.6 OK (6/9/2007 a) ND<4.96 U (4/14/2006 a) (4.6 - 4.96)/(12 - 6) -0.06 ND<3.05 OK (7/16/2006 a) ND<5.5 OK (5/12/2006 a) (3.05 - 5.5)/(8 - 7) -2.45 ND<3.225 OK (10/10/2006 ~) ND<5.5 OK (5/12/2006 a) (3.225 - 5.5)/(9 - 7) -1.1375 ND<4.26 OK (1/3/2007 a) ND<5.5 OK (5/12/2006 a) (4.26- 5.5)/(10- 7) -0.413333 ND<6.42 OK (3/14/2007 a) ND<5.5 OK (5/12/2006 a) (6.42 - 5.5)/(11 - 7) 0.23 ND<4.6 OK (6/9/2007 a) ND<5.5 OK (5/12/2006 a) (4.6 - 5.5)/(12 - 7) -0.18 ND<3.225 OK (10/10/2006 ~) ND<3.05 OK (7/16/2006 a) (3.225 - 3.05)/(9 - 8) 0.175 ND<4.26 OK (1/3/2007 a) ND<3.05 OK (7/16/2006 a) (4.26 - 3.05)/(10 - 8) 0.605 ND<6.42 OK (3/14/2007 a) ND<3.05 OK (7/16/2006 a) (6.42 - 3.05)/(11 - 8) 1.12333 ND<4.6 OK (6/9/2007 a) ND<3.05 OK (7/16/2006 a) (4.6 - 3.05)/(12 - 8) 0.3875 ND<4.26 OK (1/3/2007 a) ND<3.225 OK (10/10/2006 ~) (4.26 - 3.225)/(10- 9) 1.035 ND<6.42 OK (3/14/2007 a) ND<3.225 OK (10/10/2006 ~) (6.42 - 3.225)/(11 - 9) 1.5975 ND<4.6 OK (6/9/2007 a) ND<3.225 OK (10/10/2006 ~) (4.6 - 3.225)/(12 - 9) 0.458333 ND<6.42 OK (3/14/2007 a)

ND<4.26 OK (1/3/2007 a) (6.42 - 4.26)/(11 - 10) 2.16 ND<4.6 OK (6/9/2007 a) ND<4.26 OK (1/3/2007 a) (4.6 - 4.26)/(12 - 10) 0.17

ND<4.6 OK (6/9/2007 a) ND<6.42 OK (3/14/2007 a) (4.6- 6.42)/(12- 11) -1.82 Number of Q values = 66 Ordered 0 Values n Q 1 -2:45 2 -1.82 3 -1.1375 4 -0.955 5 -0.578333 6 -0.413333 7 -0.41 8 -0.31 9 -0.21 10 -0.2 11 -0.195 12 -0.18 13 -0.175 14 -0.15 15 -0.1075 16 -0.1 17 -0.0828571 18 -0.0607143

. 19 20 21

-0.06

-0.050625

-0.05 22 -0.038 Page 2

24 23 -0.0025

-0.02 25 0.005 26 0.00625 27 0.02 28 0.039 29 0.07 30 0.07625 31 0.0881818 32 0.095 33 0.145714 34 0.151111 35 0.17 36 0.17 37 0.175 38 0.19625 39 0.2 40 0.205 41 0.212 42 0.23 43 0.266 44 0.279 45 0.292 46 0.307778 47 0.311667 48 0.3275 49 0.37 50 0.3875 51 0.3975 52 0.458333 53 0.484286 54 0.536667 55 0.54 56 0.565 57 0.573333 58 0.605 59 0.823333 60 0.965 61 1.035 62 1.12333 63 1.15 64 1.5975 65 1.76 66 2.16 Sen's Estimator (Median Q) is 0.148413 Time Period Observations 1/9/2006 1 1/10/2006 1 2/17/2006 1 3/18/2006 1 4/13/2006 1 4/14/2006 1 5/12/2006 1 7/16/2006 1 10/10/2006 1 1/3/2007 1 Page 3

. 6/9/2007 3/14/2007 11 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a - 3828 b = 11880 c =264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is -0.05 = Q(21)

Upper limit is 0.307778 = Q(46)

-0.05 < 0 < 0.307778 indicating no trend in data.

Page 4

Cs-1 37 Time-Series Graph of MW134 31 oSamp0 e Da00 Sampte Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW134 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a ND<4.02 U (2/3/2006 a) ND<2.25 U (1/10/2006 a) (4.02 - 2.25)/(2 - 1) 1.77 ND<2.94 U (3/18/2006 a) ND<2.25 U (1/10/2006 a) (2.94 - 2.25)/(3 - 1) 0.345 ND<3.69 U (4/13/2006 a) ND<2.25 U (1/10/2006 a) (3.69 - 2.25)/(4 - 1) 0.48 ND<3.8 OK (5/4/2006 a) ND<2.25 U (1/10/2006 a) (3.8- 2.25)/(5 - 1) 0.3875 ND<4.98 OK (7/8/2006 a) ND<2.25 U (1/10/2006 a) (4.98 - 2.25)/(6 - 1) 0.546 ND<3.35 OK (10/10/2006 a) ND<2.25 U (1/10/2006 a) (3.35 - 2.25)/(7 - 1) 0.183333 ND<4.74 OK (1/5/2007 a) ND<2.25 U (1/10/2006 a) (4.74- 2.25)/(8 - 1) 0.355714 ND<3.92 OK (3/14/2007 a) ND<2.25 U (1/10/2006 a) (3.92 - 2.25)/(9 - 1) 0.20875 ND<3.83 OK (6/12/2007 a) ND<2.25 U (1/10/2006 a) (3.83 - 2.25)/(10 - 1) 0.175556 ND<2.94 U (3/18/2006 a) ND<4.02 U (2/3/2006 a) (2.94 - 4.02)/(3 - 2) -1.08 ND<3.69 U (4/13/2006 a) ND<4.02 U (2/3/2006 a) (3.69 - 4.02)/(4 - 2) -0.165 ND<3.8 OK (5/4/2006 a) ND<4.02 U (2/3/2006 a) (3.8 - 4.02)/(5 - 2) -0.0733333 ND<4.98 OK (7/8/2006 a) ND<4.02 U (2/3/2006 a) (4.98 - 4.02)/(6 - 2) 0.24 ND<3.35 OK (10/10/2006 a) ND<4.02 U (2/3/2006 a) (3.35 - 4.02)/(7 - 2) -0.134 ND<4.74 OK (1/5/2007 a) ND<4.02 U (2/3/2006 a) (4.74 - 4.02)/(8 - 2) 0.12 ND<3.92 OK (3/14/2007 a) ND<4.02 U (2/3/2006 a) (3.92 - 4.02)/(9 - 2) -0.0142857 ND<3.83 OK (6/12/2007 a) ND<4.02 U (2/3/2006 a) (3.83 - 4.02)/(10- 2) -0.02375 ND<3.69 U (4/13/2006 a) ND<2.94 U (3/18/2006 a) (3.69 - 2.94)/(4 - 3) 0.75 ND<3.8 OK (5/4/2006 a) ND<2.94 U (3/18/2006 a) (3.8 - 2.94)/(5 - 3) 0.43 ND<4.98 OK (7/8/2006 a) ND<2.94 U (3/18/2006 a) (4.98 - 2.94)/(6 - 3) 0.68 ND<3.35 OK (10/10/2006 a) ND<2.94 U (3/19/2006 a) (3.35 - 2.94)/(7 - 3) 0.1025 ND<4.74 OK (1/5/2007 a) ND<2.94 U (3/18/2006 a) (4.74 - 2.94)/(8 - 3) 0.36 ND<3.92 OK (3/14/2007 a) ND<2.94 U (3/18/2006 a) (3.92 - 2.94)/(9 - 3) 0.163333 ND<3.83 OK (6/12/2007 a) ND<2.94 U (3/18/2006 a) (3.83- 2.94)/(10- 3) 0.127143 ND<3.8 OK (5/4/2006 a) ND<3.69 U (4/13/2006 a) (3.8 -,3.69)/(5 - 4) 0.11 ND<4.98 OK (7/8/2006 a) ND<3.69 U (4/13/2006 a) (4.98 - 3.69)/(6 - 4) 0.645 ND<3.35 OK (10/10/2006 a) ND<3.69 U (4/13/2006 a) (3.35 - 3.69)/(7 - 4) -0.113333 ND<4.74 OK (1/5/2007 a) ND<3.69 U (4/13/2006 a) (4.74 - 3.69)/(8 - 4) 0.2625 ND<3.92 OK (3/14/2007 a) ND<3.69 U (4/13/2006 a) (3.92 - 3.69)/(9 - 4) 0.046 ND<3.83 OK (6/12/2007 a) ND<3.69 U (4/13/2006 a) (3.83 - 3.69)/(10- 4) 0.0233333 ND<4.98 OK (7/8/2006 a) ND<3.8 OK (5/4/2006 a) (4.98 - 3.8)/(6 - 5) 1.18 ND<3.35 OK (10/10/2006 a) ND<3.8 OK (5/4/2006 a) (3.35 - 3.8)/(7 - 5) -0.225 ND<4.74 OK (1/5/2007 a) ND<3.8 OK (5/4/2006 a) (4.74 - 3.8)/(8 - 5) 0.313333 ND<3.92 OK (3/14/2007 a) ND<3.8 OK (5/4/2006 a) (3.92 - 3.8)/(9 - 5) 0.03 ND<3.83 OK (6/12/2007 a) ND<3.8 OK (5/4/2006 a) (3.83 - 3.8)/(10 - 5) 0.006 ND<3.35 OK (10/10/2006 a) ND<4.98 OK (7/8/2006 a) (3.35 - 4.98)/(7 - 6) -1.63 ND<4.74 OK (1/5/2007 a) ND<4.98 OK (7/8/2006 a) (4.74 - 4.98)/(8 - 6) -0.12 ND<3.92 OK (3/14/2007 a) ND<4.98 OK (7/8/2006 a) (3.92 - 4.98)/(9 - 6) -0.353333 ND<3.83 OK (6/12/2007 a) ND<4.98 OK (7/8/2006 a) (3.83 - 4.98)/(10 - 6) -0.2875 ND<4.74 OK (1/5/2007 a) ND<3.35 OK (10/10/2006 a) ,(4.74 - 3.35)/(8 - 7) 1.39 ND<3.92 OK (3/14/2007 a) ND<3.35 OK (10/10/2006 a) (3.92 - 3.35)/(9 - 7) 0.285 Page 1

ND<3.83 OK (6/12/2007 a) ND<3.35 OK (10/10/2006 a) (3.83 - 3.35)/(10 - 7) 0.16 ND<3.92 OK (3/14/2007 a) ND<4.74 OK (1/5/2007 a) (3.92 - 4.74)/(9 - 8) -0.82 ND<3.83 OK (6/12/2007 a) ND<4.74 OK (1/5/2007 a) (3.83 - 4.74)/(10 - 8) -0.455 ND<3.83 OK (6/12/2007 a) ND<3.92 OK (3/14/2007 a) (3.83 - 3.92)/(10 - 9) -0.09 Number of Q values = 45 Ordered Q Values n Q 1 -1.63 2 -1.08 3 -0.82 4 -0.455 5 -0.353333 6 -0.2875 7 -0.225 8 -0.165 9 -0.134 10 -0.12 11 -0.113333 12 -0.09 13 -0.0733333 14 -0.02375 S 15 16 17

-0.0142857 0.006 0.0233333 18 0.03 19 0.046 20 0.1025 21 0.11 22 0.12 23 0.127143 24 0.16 25 0.163333 26 0.175556 27 0.183333 28 0.20875 29 0.24 30 0.2625 31 0.285 32 0.313333 33 0.345 34 0.355714 35 0.36 36 0.3875 37 0.43 38 0.48 39 0.546 40 0.645 41 0.68 43 42 0.75 1.18 44 1.39 45 1.77 Page 2

O Sen's Estimator (Median Q) is 0.127143 Time Period Observations 1/10/2006 1 2/3/2006 1 3/18/2006 1 4/13/2006 1 5/4/2006 1 7/8/2006 1 10/10/2006 1 1/5/2007 1 3/14/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b =6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 18.39 O M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0733333 = Q(13)

Upper limit is 0.345 = Q(33)

-0.0733333 < 0 < 0.345 indicating no trend in data.

Page 3

0 Cs-1 37

-j 0.

c 0

0 (D (0 co 0 CD f-C) C) (0 C) C, 04 CD C)

Q 0 C) U.)

C) CI ('N LO C, Q C*

(N (0 CO 00 (N

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW135 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 1 0

ND<4.55 U (2/3/2006 a) ND<3.55 U (1/11/2006 a) (4.55 - 3.55)/(2 - 1)

ND<2.87 U (2/5/2006 a) ND<3.55 U (1/11/2006 a) (2.87 - 3.55)/(3 - 1) -0.34 ND<4.72 U (3/20/2006 a) ND<1355 U (1/11/2006 a) (4.72- 3.55)/(4 - 1) 0.39 ND<5.07 U (4/13/2006 a) ND<3.55 U (1/11/2006 a) (5.07 - 3.55)/(5 - 1) 0.38 ND<3.67 OK (5/4/2006 a) ND<3.55 U (1/11/2006 a) (3.67 - 3.55)/(6 - 1) 0.024 ND<2.85 OK (7/10/2006 a) ND<3.55 U (1/11/2006 a) (2.85 - 3.55)/(7 - 1) -0.116667 ND<3.14 OK (10/3/2006 a) ND<3.55 U (1/11/2006 a) (3.14 - 3.55)/(8 - 1) -0.0585714 ND<3.415 OK (1/3/2007 -) ND<3.55 U (1/11/2006 a) (3.415 - 3.55)/(9 - 1) -0.016875 ND<4.77 OK (3/14/2007 a) ND<3.55 U (1/11/2006 a) (4.77- 3.55)/(10 - 1) 0.135556 ND<3.05 OK (6/12/2007 a) ND<3.55 U (1/11/2006 a) (3.05 - 3.55)/(11 - 1) -0.05 ND<2.87 U (2/5/2006 a) ND<4.55 U (2/3/2006 a) (2.87 - 4.55)/(3 - 2) -1.68 ND<4.72 U (3/20/2006 a) ND<4.55 U (2/3/2006 a) (4.72 - 4.55)/(4 - 2) 0.085 ND<5.07 U (4/13/2006 a) ND<4.55 U (2/3/2006 a) (5.07 - 4.55)/(5 - 2) 0.173333 ND<3.67 OK (5/4/2006 a) ND<4.55 U (2/3/2006 a) (3.67 - 4.55)/(6 - 2) -0.22 ND<2.85 OK (7/10/2006 a) ND<4.55 U (2/3/2006 a) (2.85 - 4.55)/(7 - 2) -0.34

.ND<3.415 ND<3.14 OK (10/3/2006 a)

OK (1/3/2007 -)

ND<4.77 OK (3/14/2007 a)

ND<4.55 ND<4.55 ND<4.55 U (2/3/2006 a)

U (2/3/2006 a)

(3.14 - 4.55)/(8 - 2)

(3.415 - 4.55)/(9 - 2)

(4.77 - 4.55)/(10- 2)

-0.235

-0.162143 0.0275 ND<3.05 OK (6/12/2007 a) ND<4.55 U (2/3/2006 a) (3.05 - 4.55)/(11 - 2) -0.166667 ND<4.72 U (3/20/2006 a) ND<2.87 U (2/5/2006 a) (4.72 - 2.87)/(4 - 3) 1.85 ND<5.07 U (4/13/2006 a) ND<2.87 U (2/5/2006 a) (5.07 - 2.87)/(5 - 3) 1.1 ND<3.67 OK (5/4/2006 a) ND<2.87 U (2/5/2006 a) (3.67 - 2.87)/(6 - 3) 0.266667 ND<2.85 OK (7/10/2006 a) ND<2.87 U (2/5/2006 a) (2.85 - 2.87)/(7 - 3) -0.005 ND<3.14 OK (10/3/2006 a) ND<2.87 U (2/5/2006 a) (3.14 - 2.87)/(8 - 3) 0.054 ND<3.415 OK (1/3/2007 -) ND<2.87 U (2/5/2006 a) (3.415 - 2.87)/(9 - 3) 0.0908333 ND<4.77 OK (3/14/2007 a) ND<2.87 U (2/5/2006 a) (4.77 - 2.87)/(10 - 3) 0.271429 ND<3.05 OK (6/12/2007 a) ND<2.87 U (2/5/2006 a) (3.05 - 2.87)/(11 - 3) 0.0225 ND<5.07 U (4/13/2006 a) ND<4.72 U (3/20/2006 a) (5.07 - 4.72)/(5 - 4) 0.35 ND<3.67 OK (5/4/2006 a) ND<4.72 U (3/20/2006 a) (3.67 - 4.72)/(6 - 4) -0.525 ND<2.85 OK (7/10/2006 a) ND<4.72 U (3/20/2006 a) (2.85 - 4.72)/(7 - 4) -0.623333 ND<3.14 OK (10/3/2006 a) ND<4.72 U (3/20/2006 a) (3.14 - 4.72)/(8 - 4) -0.395 ND<3.415 OK (1/3/2007 -) ND<4.72 U (3/20/2006 a) (3.415 - 4.72)/(9- 4) -0.261 ND<4.77 OK (3/14/2007 a) ND<4.72 U (3/20/2006 a) (4.77 - 4.72)/(10 - 4) 0.00833333 ND<3.05 OK (6/12/2007 a) ND<4.72 U (3/20/2006 a) (3.05 - 4.72)/(11 - 4) -0.238571 ND<3.67 OK (5/4/2006 a) ND<5.07 U (4/13/2006 a) (3.67 - 5.07)/(6 - 5) -1.4 ND<2.85 OK (7/10/2006 a) ND<5.07 U (4/13/2006 a) (2.85 - 5.07)/(7 - 5) -1.11 ND<3.14 OK (10/3/2006 a) ND<5.07 U (4/13/2006 a) (3.14 - 5.07)/(8 - 5) -0.643333 ND<3.415 OK (1/3/2007 -) ND<5.07 U (4/13/2006 a) (3.415 - 5.07)/(9 - 5) -0.41375 ND<4.77 OK (3/14/2007 a) ND<5.07 U (4/13/2006 a) (4.77 - 5.07)/(10 - 5) -0.06 ND<3.05 OK (6/12/2007 a) ND<5.07 U (4/13/2006 a) (3.05 - 5.07)/(11 - 5) -0.336667

. ND<2.85 OK (7/10/2006 a)

ND<3.14 OK (10/3/2006 a)

ND<3.67 OK (5/4/2006 a)

(2.85 - 3.67)/(7 - 6)

(3.14 - 3.67)/(8 - 6)

-0.82

-0.265 Page 1

.ND<3.415 ND<4.77 OKOK(3/14/2007 (1/3/2007 -)

ND<3.05 OK (6/12/2007 a) a)

ND<3.67 OK (5/4/2006 a)

(3.415 - 3.67)/(9 - 6)

(4.77 - 3.67)/(10 - 6)

(3.05 - 3.67)/(11 - 6)

-0.085 0.275

-0.124 N D<3.14 OK (10/3/2006 a) ND<2.85 OK (7/10/2006 a) (3.14 - 2.85)/(8 - 7) 0.29 ND<3.415 OK (1/3/2007 -) ND<2.85 OK (7/10/2006 a) (3.415 - 2.85)/(9 - 7) 0.2825 ND<4.77 OK (3/14/2007 a) ND<2.85 OK (7/10/2006 a) (4.77 - 2.85)/(10 - 7) 0.64 ND<3.05 OK (6/12/2007 a) ND<2.85 OK (7/10/2006 a) (3.05 - 2.85)/(11 - 7) 0.05 ND<3.415 OK (1/3/2007 - N D<3.14 OK (10/3/2006 a) (3.415 - 3.14)/(9 - 8) 0.275 ND<4.77 OK (3/14/2007 a) N D<3.14 OK (10/3/2006 a) (4.77 - 3.14)/(10 - 8)' 0.815 ND<3.05 OK (6/12/2007 a) N D<3.14 OK (10/3/2006 a) (3.05 - 3.14)/(11 - 8) -0.03 (4.77 - 3.415)/(10 - 9)

ND<4.77 OK (3/14/2007 a) ND<3.415 OK (1/3/2007 ~) 1.355 ND<3.05 OK (6/12/2007 a) ND<3.415 OK (1/3/2007 ~) (3.05 - 3.415)/(11 - 9) -0.1825 ND<3.05 OK (6/12/2007 a) ND<4.77 OK (3/14/2007 a) (3.05- 4.77)/(11 - 10) -1.72 Number of Q values = 55 Ordered o Values n Q 1 -1.72 2 -1.68 3 -1.4 4 -1.11 5 -0.82 6 -0.643333 7 -0.623333 8 -0.525 9 -0.41375 10 -0.395 11 -0.34 12 -0.34 13 -0.336667 14 -0.265 15 -0.261 16 -0.238571 17 -0.235 18 -0.22 19 -0.1825 20 -0.166667 21 -0.162143 22 -0.124 23 -0.116667 24 -0.085 25 -0.06 26 -0.0585714 27 -0.05 28 -0.03 29 -0.016875 30 -0.005

. 31 32 33 0.00833333 0.0225 0.024 34 0.0275 Page 2

35 0.05 36 0.054 37 0.085 38 0.0908333 39 0.135556 40 0.173333 41 0.266667 42 0.271429 43 0.275 44 0.275 45 0.2825 46 0.29 47 0.35 48 0.38 49 0.39 50 0.64 51 0.815 52 1 53 1.1 54 1.355 55 1.85 Sen's Estimator (Median Q) is -0.03 Time Period Observations 1/11/2006 1 2/3/2006 1 2/5/2006 1 O 3/20/2006 1 4/13/2006 1 5/4/2006 1 7/10/2006 1 10/3/2006 1 1/3/2007 1 3/14/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.235 = Q(17)

Upper limit is 0.135556 = Q(39)

-0.235 < 0 < 0.135556 indicating no trend in data.

Page 3

0 S Cs-I 37 Time-Series Graph of MW136D 4,

'C

-J 0.

0 0

U-)

('I.

-- I I CDO 0 CD CD I'- 0. 0 0 C) 00 0 CD 00 0 0 0 (Nl 0 C\J (NJ 0 C) 00 CD C,) CD (co

'Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW136D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 2.21 U (2/12/2006 a) ND<2.27 U (1/16/2006 a) (2.21 - 2.27)/(2 - 1) -0.06 ND<4.13 U (4/7/2006 a) ND<2.27 U (1/16/2006 a) (4.13 - 2.27)/(3 - 1) 0.93 ND<3.595 U (4/19/2006 ~) ND<2.27 U (1/16/2006 a) (3.595 - 2.27)/(4 - 1) 0.441667 ND<4.1 OK (5/18/2006 a) ND<2.27 U (1/16/2006 a) (4.1 - 2.27)/(5 - 1) 0.4575 ND<2.97 OK (5/19/2006 a) ND<2.27 U (1/16/2006 a) (2.97 - 2.27)/(6 - 1) 0.14 ND<3.57 OK (7/19/2006 a) ND<2.27 U (1/16/2006 a) (3.57 - 2.27)/(7 - 1) 0.216667 ND<3.74 OK (10/18/2006 a) ND<2.27 U (1/16/2006 a) (3.74- 2.27)/(8 - 1) 0.21 ND<3.67 OK (1/2/2007 a) ND<2.27 U (1/16/2006 a) (3.67- 2.27)/(9 - 1) 0.175 ND<4.425 OK (3/13/2007 ~) ND<2.27 U (1/16/2006 a) (4.425 - 2.27)/(10 - 1) 0.239444 ND<5.31 OK (6/12/2007 a) ND<2.27 U (1/16/2006 a) (5.31 - 2.27)/(11 - 1) 0.304 ND<4.13 U (4/7/2006 a) 2.21 U (2/12/2006 a) (4.13 - 2.21)/(3 - 2) 1.92 ND<3.595 U (4/19/2006 ~) 2.21 U (2/12/2006 a) (3.595 - 2.21)/(4 - 2) 0.6925 ND<4.1 OK (5/18/2006 a) 2.21 U (2/12/2006 a) (4.1 - 2.21)/(5 - 2) 0.63 ND<2.97 OK (5/19/2006 a) 2.21 U (2/12/2006 a) (2.97- 2.21)/(6- 2) 0.19 ND<3.57 OK (7/19/2006 a) 2.21 U (2/12/2006 a) (3.57 - 2.21)/(7 - 2) 0.272 ND<3.74 OK (10/18/2006 a) 2.21 U (2/12/2006 a) (3.74 - 2.21)/(8 - 2) 0.255

ND<3.67 OK (1/2/2007 a) 2.21 U (2/12/2006 a) (3.67 - 2.21)/(9 - 2) 0.208571 ND<4.425 OK (3/13/2007 ~) 2.21 U (2/12/2006 a) (4.425 - 2.21)/(10 - 2) 0.276875 ND<5.31 OK (6/12/2007 a) 2.21 U (2/12/2006 a) (5.31 - 2.21)/(11 - 2) 0.344444 ND<3.595 U (4/19/2006 -) ND<4.13 U (4/7/2006 a) (3.595 - 4.13)/(4 - 3) -0.535 ND<4.1 OK (5/18/2006 a) ND<4.13 U (4/7/2006 a) (4.1 - 4.13)/(5 - 3) -0.015 ND<2.97 OK (5/19/2006 a) ND<4.13 U (4/7/2006 a) (2.97 - 4.13)/(6 - 3) -0.386667 ND<3.57 OK (7/19/2006 a) ND<4.13 U (4/7/2006 a) (3.57 - 4.13)/(7- 3) -0.14 ND<3.74 OK (10/18/2006 a) ND<4.13 U (4/7/2006 a) (3.74 - 4.13)/(8 - 3) -0.078 ND<3.67 OK (1/2/2007 a) ND<4.13 U (4/7/2006 a) (3.67- 4.13)/(9 - 3) -0.0766667 ND<4.425 OK (3/13/2007 ~) ND<4.13 U (4/7/2006 a) (4.425 - 4.13)/(10- 3) 0.0421429 ND<5.31 OK (6/12/2007 a) ND<4.13 U (4/7/2006 a) (5.31 - 4.13)/(11 - 3) 0.1475 ND<4.1 OK (5/18/2006 a) ND<3.595 U (4/19/2006 ~) (4.1 - 3.595)/(5 - 4) 0.505 ND<2.97 OK (5/19/2006 a) ND<3.595 U (4/19/2006 ~) (2.97 - 3.595)/(6 - 4) -0.3125 ND<3.57 OK (7/19/2006 a) ND<3.595 U (4/19/2006 ~) (3.57 - 3.595)/(7 - 4) -0.00833333 ND<3.74 OK (10/18/2006 a) ND<3.595 U (4/19/2006 -) (3.74 - 3.595)/(8 - 4) 0.03625 ND<3.67 OK (1/2/2007 .a) ND<3.595 U (4/19/2006 ~) (3.67 - 3.595)/(9 - 4) 0.015 ND<4.425 OK (3/13/2007 -) ND<3.595 U (4/19/2006 ~) (4.425 - 3.595)/(10- 4) 0.138333 ND<5.31 OK (6/12/2007 a) ND<3.595 U (4/19/2006 ~) (5.31 - 3.595)/(11 - 4) 0.245 ND<2.97 OK (5/19/2006 a) ND<4.1 OK (5/18/2006 a) (2.97- 4.1)/(6- 5) -1.13 ND<3.57 OK (7/19/2006 a) ND<4.1 OK (5/18/2006 a) (3.57 - 4.1)/(7- 5) -0.265 ND<3.74 OK (10/18/2006 a) ND<4.1 OK (5/18/2006 a) (3.74- 4.1)/(8 - 5) -0.12 ND<3.67 OK (1/2/2007 a) ND<4.1 OK (5/18/2006 a) (3.67- 4.1)/(9- 5) -0.1075 ND<4.425 OK (3/13/2007 ~) ND<4.1 OK (5/18/2006 a) (4.425 - 4.1)/(10- 5) 0.065 ND<5.31 OK (6/12/2007 a) ND<4.1 OK (5/18/2006 a) (5.31 - 4.1)/(11 - 5) 0.201667 ND<3.57 OK (7/19/2006 a) ND<2.97 OK (5/19/2006 a) (3.57 - 2.97)/(7 - 6) 0.6 ND<3.74 OK (10/18/2006 a) ND<2.97 OK (5/19/2006 a) (3.74 - 2.97)/(8 - 6) 0.385 Page 1

O ND<3.67 OK (1/2/2007 a) ND<2.97 OK (5/19/2006 a) (3.67 - 2.97)/(9 - 6)

(4.425 - 2.97)/(10 - 6) 0.233333 ND<4.425 OK (3/13/2007 ,) ND<2.97 OK (5/19/2006 a) 0.36375 ND<5.31 OK (6/12/2007 a) ND<2.97 OK (5/19/2006 a) (5.31 - 2.97)/(11 - 6) 0.468 ND<3.74 OK (10/18/2006 a) ND<3.57 OK (7/19/2006 a) (3.74 - 3.57)/(8 - 7) 0.17 ND<3.67 OK (1/2/2007 a) ND<3.57 OK (7/19/2006 a) (3.67 - 3.57)/(9 - 7) 0.05 ND<4.425 OK (3/13/2007 ~) ND<3.57 OK (7/19/2006 a) (4.425 - 3.57)/(10 - 7) 0.285 ND<5.31 OK (6/12/2007 a) ND<3.57 OK (7/19/2006 a) (5.31 - 3.57)/(11 - 7) 0.435 ND<3.67 OK (1/2/2007 a) ND<3.74 OK (10/18/2006 a) (3.67 - 3.74)/(9 - 8) -0.07 ND<4.425 OK (3/13/2007 ~) ND<3.74 OK (10/18/2006 a) (4.425 - 3.74)/(10- 8) 0.3425 ND<5.31 OK (6/12/2007 a) ND<3.74 OK (10/18/2006 a) (5.31 - 3.74)/(11 - 8) 0.523333 ND<4.425 OK (3/13/2007 ~) ND<3.67 OK (1/2/2007 a) (4.425 - 3.67)/(10 - 9) 0.755 ND<5.31 OK (6/12/2007 a) ND<3.67 OK (1/2/2007 a) (5.31 - 3.67)/(11 - 9) 0.82 ND<5.31 OK (6/12/2007 a) ND<4.425 OK (3/13/2007 ~) (5.31 - 4.425)/(11 - 10) 0.885 Number of Q values = 55 Ordered 0 Values

,n Q 1 -1.13 2 -0.535 3 -0.386667

. 4 5

6

-0.3125

-0.265

-0.14 7 -0.12 8 -0.1075 9 -0.078 10 -0.0766667 11 -0.07 12 -0.06

13. -0.015 14 -0.00833333 15 0.015 16 0.03625 17 0.0421429 18 0.05 19 0.065 20 0.138333 21 0.14 22 0.1475 23 0.17 24 0.175 25 0.19 26 0.201667 27 0.208571 28 0.21 29 0.216667 30 0.233333 31 0.239444 32 0.245 33 0.255 34 0.272 Page 2

. 36 35 37 0.285 0.276875 0.304 38 0.3425 39 0.344444 40 0.36375 41 0.385 42 0.435 43 0.441667 44 0.4575 45 0.468 46 0.505 47 0.523333 48 0.6 49 0.63 50 0.6925 51 0.755 52 0.82 53 0.885 54 0.93 55 1.92 Sen's Estimator (Median Q) is 0.21 Time Period Observations 1/16/2006 1 2/12/2006 1

. 4/7/2006 4/19/2006 5/18/2006 1

1 1

5/19/2006 1 7/19/2006 1 10/18/2006 1 1/2/2007 1 3/13/2007 1 6/12/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is 0.0421429 = Q(17)

Upper limit is 0.344444 = Q(39) 0.0421429 > 0 indicating an upward trend in data.

Page 3

Cs-1 37 2

c* 1.5t 0

11 I SmIl o

q o o*

o o*

o*

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW136S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a ND<3.66 U (2/24/2006 a) ND<2.46 U (1/15/2006 a) (3.66 - 2.46)/(2 - 1) 1.2 ND<3.27 U (4/10/2006 a) ND<2.46 U (1/15/2006 a) (3.27 - 2.46)/(3 - 1) 0.405 ND<3.52 U (4/19/2006 a) ND<2.46 U (1/15/2006 a) (3.52 - 2.46)/(4 - 1) 0.353333 ND<3.22 OK (5/18/2006 a) ND<2.46 U (1/15/2006 a) (3.22 - 2.46)/(5 - 1) 0.19 ND<2.85 OK (7/11/2006 a) ND<2.46 U (1/15/2006 a) (2.85 - 2.46)/(6 - 1) 0.078 ND<3.37 OK (10/18/2006 a) ND<2.46 U (1/15/2006 a) (3.37 - 2.46)/(7 - 1) 0.151667 ND<3.24 OK (1/2/2007 a) ND<2.46 U (1/15/2006 a) (3.24 - 2.46)/(8 - 1) 0.111429 ND<3.52 OK (3/13/2007 a) ND<2.46 U (1/15/2006 a) (3.52 - 2.46)/(9 - 1) 0.1325 ND<3.81 OK (6/9/2007 a) ND<2.46 U (1/15/2006 a) (3.81 - 2.46)/(10 - 1) 0.15 ND<3.27 U (4/10/2006 a) ND<3.66 U (2/24/2006 a) (3.27 - 3.66)/(3 - 2) -0.39 ND<3.52 U (4/19/2006 a) ND<ý3.66 U (2/24/2006 a) (3.52 - 3.66)/(4 - 2) -0.07 ND<3.22 OK (5/18/2006 a) ND<3.66 U (2/24/2006 a) (3.22 - 3.66)/(5 - 2) -0.146667 ND<2.85 OK (7/11/2006 a) ND<3.66 U.(2/24/2006 a) (2.85 - 3.66)/(6 - 2) -0.2025 ND<3.37 OK (10/18/2006 a) ND<3.66 U (2/24/2006 a) (3.37 - 3.66)/(7 - 2) -0.058 ND<3.24 OK (1/2/2007 a) ND<3.66 U (2/24/2006 a) (3.24 - 3.66)/(8 - 2) -0.07 ND<3.52 OK (3/13/2007 a) ND<3.66 U (2/24/2006 a) (3.52 - 3.66)/(9 - 2) -0.02 ND<3.81 OK (6/9/2007 a) ND<3.66 U (2/24/2006 a) (3.81 - 3.66)/(10- 2) 0.01875 ND<3.52 U (4/19/2006 a) ND<3.27 U (4/10/2006 a). (3.52 - 3.27)/(4 - 3) 0.25 ND<3.22 OK (5/18/2006 a) ND<3.27 U (4/10/2006 a) (3.22 - 3.27)/(5 - 3) -0.025 ND<2.85 OK (7/11/2006 a) ND<3.27 U (4/10/2006 a) (2.85 - 3.27)/(6 - 3) -0.14 ND<3.37 OK (10/18/2006 a) ND<3.27 U (4/10/2006 a) (3.37 - 3.27)/(7 - 3) .0.025 ND<3.24 OK (1/2/2007 a) ND<3.27 U (4/10/2006 a) (3.24 - 3.27)/(8 - 3) -0.006 ND<3.52 OK (3/13/2007 a) ND<3.27 U (4/10/2006 a) (3.52 - 3.27)/(9 - 3) 0.0416667 ND<3.81 OK (6/9/2007 a) ND<3.27 U (4/10/2006 a) (3.81 - 3.27)/(10 - 3) 0.0771429 ND<3.22 OK (5/18/2006 a) ND<3.52 U (4/19/2006 a) (3.22 - 3.52)/(5 - 4) -0.3 ND<2.85 OK (7/11/2006 a) ND<3.52 U (4/19/2006 a) (2.85 - 3.52)/(6 - 4) -0.335 ND<3.37 OK (10/18/2006 a) ND<3.52 U (4/19/2006 a) (3.37 - 3.52)/(7 - 4) -0.05 ND<3.24 OK (1/2/2007 a) ND<3.52 U (4/19/2006 a) (3.24 - 3.52)/(8 - 4) -0.07 ND<3.52 OK (3/13/2007 a) ND<3.52 U (4/19/2006 a) (3.52 - 3.52)/(9 - 4) 0 ND<3.81 OK (6/9/2007 a) ND<3.52 U (4/19/2006 a) (3.81 - 3.52)/(10 - 4) 0.0483333 ND<2.85 OK (7/11/2006 a) ND<3.22 OK (5/18/2006 a) (2.85 - 3.22)/(6 - 5) -0.37 ND<3.37 OK (10/18/2006 a) ND<3.22 OK (5/18/2006 a) (3.37 - 3.22)/(7 - 5) 0.075 ND<3.24 OK (1/2/2007 a) ND<3.22 OK (5/18/2006 a) (3.24 - 3.22)/(8 - 5) 0.00666667 ND<3.52 OK (3/13/2007 a) ND<3.22 OK (5/18/2006 a) (3.52 - 3.22)/(9 - 5) 0.075 ND<3.81 OK (6/9/2007 a) ND<3.22 OK (5/18/2006 a) (3.81 - 3.22)/(10- 5) 0.118 ND<3.37 OK (10/18/2006 a) ND<2.85 OK (7/11/2006 a) (3.37 - 2.85)/(7 - 6) 0.52 ND<3.24 OK (1/2/2007 a) ND<2.85 OK (7/11/2006 a) (3.24 - 2.85)/(8 - 6) 0.195 ND<3.52 OK (3/13/2007 a) ND<2.85 OK (7/11/2006 a) (3.52 - 2.85)/(9 - 6) 0.223333 ND<3.81 OK (6/9/2007 a) ND<2.85 OK (7/11/2006 a) (3.81 - 2.85)/(10 - 6) 0.24 ND<3.24 OK (1/2/2007 a) ND<3.37 OK (10/18/2006 a) (3.24 - 3.37)/(8 - 7) -0.13 ND<3.52 OK (3/13/2007 a) ND<3.37 OK (10/18/2006 a) (3.52 - 3.37)/(9 - 7) 0.075 Page 1

ND<3.81 OK (6/9/2007 a) ND<3.37 OK (10/18/2006 a) (3.81 - 3.37)/(10- 7) 0.146667 ND<3.52 OK (3/13/2007 a) ND<3.24 OK (1/2/2007 a) (3.52 - 3.24)/(91- 8) 0.28 ND<3.81 OK (6/9/2007 a) ND<3.24 OK (1/2/2007 a) (3.81 - 3.24)/(10- 8) 0.285 ND<3.81 OK (6/9/2007 a) ND<3.52 OK (3/13/2007 a) (3.81 - 3.52)/(10 - 9) 0.29 Number of 0 values = 45 Ordered Q Values n Q 1 -0.39 2 -0.37 3 -0.335 4 -0.3 5 -0.2025 6 -0.146667 7 -0.14 8 -0.13 9 -0.07 10 -0.07 11 -0.07 12 -0.058 13 -0.05 14 -0.025 15 -0.02 16 -0.006 17 0 18 - 0.00666667 19 0.01875 20 0.025 21 0.0416667 22 0.0483333 23 0.075

.24 0.075 25 0.075 26 0.0771429 27 0.078 28 0.111429 29 0.118 30 0.1325 31 0.146667 32 0.15 33 0.151667 34 0.19 35 0.195 36 0.223333 37 0.24 38 0.25 39 0.28 40 0.285 41 0.29 42 0.353333 43 0.405 44 0.52 45 1.2 Page 2

O Sen's Estimator (Median Q) is 0.075 Tied Group Value Members 1 3.52 2 Time Period Observations 1/15/2006 1 2/24/2006 1 4/10/2006 1 4/19/2006 1 5/18/2006 1 7/11/2006 1 10/18/2006 1 1/2/2007 1 3/13/2007 1 6/9/2007 1 There are 0 time periods with multiple data A =18 B=0 C=0 D=0 E=2 F=0 a = 2250 b= 6480 c= 180

Group Variance = 124 For 90% confidence interval (two-tailed), Z at (1.-0.9)/2 = 1.64485 C = 18.3163 M1 = (45- 18.3163)/2.0'= 13.3418 M2 = (45 + 18.3163)/2.0 + 1 = 32.6582 Lower limit is -0.05 = Q(,13)

Upper limit is 0.151667 _ Q(33)

-0.05 < 0 < 0.151667 indicating no trend in data.

Page 3

Cs-1 37 Time-Series Graph of MW137 200 150 5..0 0

0 0-100 50 (0D (-0 (,0 (,0 O C,- C,-

U) - ) - Nc-Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW137 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 17.7,5 OK (2/24/2006 ~) 16.7 OK (1/15/2006 a) (17.75- 16.7)/(2 - 1) 1.05 11.9 OK (4/10/2006 -) 16.7 OK (1/15/2006 a) (11.9 - 16.7)/(3 - 1) -2.4 8.25 OK (4/13/2006 a) 16.7 OK (1/15/2006 a) (8.25 - 16.7)/(4 - 1) -2.81667 13.9 OK (5/19/2006 a) 16.7 OK (1/15/2006 a) (13.9- 16.7)/(5 - 1) -0.7 10.485 OK (7/19/2006 ~) 16.7 OK (1/15/2006 a) (10.485 - 16.7)/(6 - 1) -1.243 126 OK (10/18/2006 a) 16.7 OK (1/15/2006 a) (126- 16.7)/(7 - 1) 18.2167 117 OK (11/15/2006 a) 16.7 OK (1/15/2006 a) (117 - 16.7)/(8 - 1) 14.3286 24.4 OK (1/4/2007 a) 16.7 OK (1/15/2006 a) (24.4 - 16.7)/(9 - 1) 0.9625 29.8 OK (3/20/2007 a) 16.7 OK (1/15/2006 a) (29.8 - 16.7)/(10 - 1) 1.45556 15.3 OK (4/9/2007 a) 16.7 OK (1/15/2006 a) (15.3- 16.7)/(11 -1) -0.14 23.9 OK (6/27/2007 a) 16.7 OK (1/15/2006 a). (23.9- 16.7)/(12 - 1) 0.654545 11.9 OK (4/10/2006 -) 17.75 OK (2/24/2006 ~) (11.9 - 17.75)/(3 - 2) -5.85 8.25 OK (4/13/2006 a) 17.75 OK (2/24/2006 ~) (8.25 - 17.75)/(4 - 2) -4.75 13.9 OK (5/19/2006 a) 17.75 OK (2/24/2006 ~) (13.9 - 17.75)/(5 - 2) -1.28333 10.485 OK (7/19/2006 ~) 17.75 OK (2/24/2006 ~) (10.485 - 17.75)/(6 - 2) -1.81625 126 OK (10/18/2006 a) 17.75 OK (2/24/2006 ~) (126 - 17.75)/(7- 2) 21.65 117 OK (11/15/2006 a) 17.75 OK (2/24/2006 ~) (117 - 17.75)/(8 - 2) 16.5417 24.4 OK (1/4/2007 a) 17.75 OK (2/24/2006 ~) (24.4 - 17.75)/(9 - 2) 0.95 29.8 OK (3/20/2007 a) 17.75 OK (2/24/2006 ~) (29.8 - 17.75)/(10 - 2) 1.50625 15.3 OK (4/9/2007 a) 17.75 OK (2/24/2006 ~) (15.3- 17.75)/(11 - 2) -0.272222 23.9 OK (6/27/2007 a) 17.75 OK (2/24/2006 ~) (23.9 - 17.75)/(12 - 2) 0.615 8.25 OK (4/13/2006 a) 11.9 OK (4/10/2006 ~) (8.25 - 11.9)/(4- 3) -3.65 13.9 OK (5/19/2006 a) 11.9 OK (4/10/2006 ~) (13.9 - 11.9)/(5 - 3) 1 10.485 OK (7/19/2006 ~) 11.9 OK (4/10/2006 ~) (10.485 - 11.9)/(6- 3) -0.471667 126 OK (10/18/2006 a) 11.9 OK (4/10/2006 ~) (126 - 11.9)/(7 - 3) 28.525 117 OK (11/15/2006 a) 11.9 OK (4/10/2006 ~) (117- 11.9)/(8 - 3) 21.02 24.4 OK (1/4/2007 a) 11.9 OK (4/10/2006 ~) (24.4 - 11.9)/(9 - 3) 2.08333 29.8 OK (3/20/2007 a) 11.9 OK (4/10/2006 ~) (29.8 - 11.9)/(10 - 3) 2.55714 15.3 OK (4/9/2007 a) 11.9 OK (4/10/2006 ~) (15.3- 11.9)/(11 - 3) 0.425 23.9 OK (6/27/2007 a) 11.9 OK (4/10/2006 ~) (23.9- 11.9)/(12 - 3), 1.33333 13.9 OK (5/19/2006 a) 8.25 OK (4/13/2006 a) (13.9 - 8.25)/(5 - 4) 5.65 10.485 OK (7/19/2006 ~) 8.25 OK (4/13/2006 a) (10.485 - 8.25)/(6 - 4) 1.1175 126 OK (10/18/2006 a) 8.25 OK (4/13/2006 a) (126- 8.25)/(7 - 4) 39.25 117 OK (11/15/2006 a) 8.25 OK (4/13/2006 a) (117 - 8.25)/(8 - 4) 27.1875 24.4 OK (1/4/2007 a) 8.25 OK (4/13/2006 a) (24.4 - 8.25)/(9 - 4) 3.23 29.8 OK (3/20/2007 a) 8.25 OK (4/13/2006 a) (29.8 - 8.25)/(10- 4) 3.59167 15.3 OK (4/9/2007 a) 8.25 OK(4/13/2006 a) (15.3 - 8.25)/(111 - 4) 1.00714 23.9 OK (6/27/2007 a) 8.25 OK (4/13/2006 a) (23.9 - 8.25)/(12 - 4) 1.95625 10.485 OK (7/19/2006 ~) 13.9 OK.(5/19/2006 a) (10.485 - 13.9)/(6 - 5) -3.415

. 126 OK (10/18/2006 a) 117 OK (11/15/2006 a) 24.4 OK (1/4/2007 a) 13.9 13.9 13.9 OK (5/19/2006 OK (5/19/2006 OK (5/19/2006 a) a)

a)

(126- 13.9)/(7- 5)

(117- 13.9)/(8- 5)

(24.4 - 13.9)/(9 - 5) 56.05 34.3667 2.625 29.8 OK (3/20/2007 a) 13.9 OK (5/19/2006 a) (29.8- 13.9)/(10 - 5) 3.18 Page 1

13.9 OK (5/19/2006 a) (15.3- 13.9)/(11 - 5) 0.233333 S 23.9 15.3 OK OK (6/27/2007 (4/9/2007 a)a) 13.9 OK (5/19/2006 a) (23.9 - 13.9)/(12- 5) 1.42857 126 OK (10/18/2006 a) 10.485 OK (7/19/2006 ~) (126 - 10.485)/(7 - 6) 115.515 117 OK (11/15/2006 a) 10.485 OK (7/19/2006 ~) (117 - 10.485)/(8 - 6) 53.2575 24.4 OK (1/4/2007 a) 10.485 OK (7/19/2006 ~) (24.4 - 10.485)/(9- 6) 4.63833 29.8 OK (3/20/2007 a) 10.485 OK (7/19/2006 ~) (29.8 - 10.485)/(10- 6) 4.82875 15.3 OK (4/9/2007 a) 10.485 OK (7/19/2006 ~) (15.3- 10.485)/(11 - 6) 0.963 23.9 OK (6/27/2007 a) 10.485 OK (7/19/2006 ~) (23.9 - 10.485)/(12- 6) 2.23583 117 OK (11/15/2006 a) 126 OK (10/18/2006 a) (117- 126)/(8- 7) -9 24.4 OK (1/4/2007 a) 126 OK (10/18/2006 a) (24.4 - 126)/(9 - 7) -50.8 29.8 OK (3/20/2007 a) 126 OK (10/18/2006 a) (29.8 - 126)/(10- 7) -32.0667 15.3 OK (4/9/2007 a) 126 OK (10/18/2006 a) (15.3 - 126)/(11 - 7) -27.675 23.9 OK (6/27/2007 a) 126 OK (10/18/2006 a) (23.9 - 126)/(12- 7) -20.42 24.4 OK (1/4/2007 a) 117 OK (11/15/2006 a) (24.4 - 117)/(9 - 8) -92.6 29.8 OK (3/20/2007 a) 117 OK (11/15/2006 a) (29.8 - 117)/(10 - 8) -43.6 15.3 OK (4/9/2007 a) 117 OK (11/15/2006 a) (15.3 - 117)/(11 - 8) -33.9 23.9 OK (6/27/2007 a) 117 OK (11/15/2006 a) (23.9 - 117)/(12 - 8) -23.275 29.8 OK (3/20/2007 a) 24.4 OK (1/4/2007 a) (29.8 - 24.4)/(10 - 9) 5.4 15.3 OK (4/9/2007 a) 24.4 OK (1/4/2007 a) (15.3 - 24.4)/(11 - 9) -4.55 23.9 OK (6/27/2007 a) 24.4 OK (1/4/2007 a) (23.9 - 24.4)/(12 - 9) -0.166667 15.3 OK (4/9/2007 a) 29.8 OK (3/20/2007 a), (15.3 - 29.8)/(11 - 10) -14.5 23.9 OK (6/27/2007 a) 29.8 OK (3/20/2007 a) (23.9 - 29.8)/(12 - 10) -2.95 B23.9 OK (6/27/2007 a) 15.3 OK (4/9/2007 a) (23.9- 15.3)/(12 - 11) 8.6 Number of Q values = 66 Ordered O Values n Q 1 -92.6 2 -50.8 3 -43.6 4 -33.9 5 -32.0667 6 -27.675 7 -23.275 8 -20.42 9 -14.5 10 -9 11 -5.85 12 -4.75 13 -4.55 14 -3.65 15 -3.415 16 -2.95 17 -2.81667 18 -2.4 19 -1.81625 20 -1.28333 21 -1.243 22 -0.7 Page 2

24 23 -0.272222

-0.471667 25 -0.166667 26 -0.14 27 0.233333 28 0.425 29 0.615 30 0.654545 31 0.95 32 0.9625 33 0.963 34 1 35 1.00714 36 1.05 37 1.1175 38 11.33333 39 1.42857 40 1.45556 41 1.50625 42 1.95625 43 2.08333 44 2.23583 45 2.55714 46 2.625 47 3.18

48. 3.23 49 3.59167 50 4.63833 51 4.82875 52 5.4 53 5.65 54 8.6 55 14.3286 56 16.5417 57 18.2167 58 21.02 59 21.65 60 27.1875 61 28.525 62 34.3667 63 39.25 64 53.2575 65 56.05 66 115.515 Sen's Estimator (Median Q) is 0.9815 Time Period Observations 1/15/2006 1 2/24/2006 1 4/10/2006 1 4/13/2006 1 5/19/2006 1 7/19/2006 1 10/18/2006 1 11/15/2006 1/4/2007 1 3/20/2007 1 Page 3

. 6/27/2007 4/9/2007 11 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 A= 3828 b= 11880 c = 264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is -1.243 = Q(21)

Upper limit is 2.625 = Q(46)

-1.243 < 0 < 2.625 indicating no trend in data.

Page 4

Cs-137 Time-Series Graph of MW138 3i 4

0 o- D

. Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW138 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<2.46 U (2/9/2006 a) ND<3.64 U (1/16/2006 ~ (2.46 - 3.64)/(2 - 1) -1.18 ND<3.19 U (2/13/2006 a) ND<3.64 U (1/16/2006 ~ (3.19 - 3.64)/(3- 1) -0.225 2.21 U (3/13/2006 a) ND<3.64 U (1/16/2006 ~ (2.21 - 3.64)/(4 - 1) -0.476667 ND<3.85 U (3/20/2006 a) ND<3.64 U (1/16/2006 ~ (3.85 - 3.64)/(5 - 1) 0.0525 ND<3.77 U (4/13/2006 a) ND<3.64 U (1/16/2006 ~ (3.77 - 3.64)/(6 - 1) 0.026 ND<3.56 OK (5/3/2006 a) ND<3.64 U (1/16/2006 ~ (3.56 - 3.64)/(7 - 1) -0.0133333 ND<3.27 OK (5/4/2006 a) ND<3.64 U (1/16/2006 ~ (3.27 - 3.64)/(8 - 1) -0.0528571 ND<3.83 OK (7/10/2006 a) ND<3.64 U (1/16/2006 ~ (3.83 - 3.64)/(9 - 1) 0.02375 ND<2.5 OK (10/4/2006 -) ND<3.64 U (1/16/2006 ~ (2.5 - 3.64)/(10 - 1.) -0.126667 ND<3.47 OK (1/2/2007 a) ND<3.64 U (1/16/2006 ~ (3.47- 3.64)/(11 - 1) -0.017 ND<3.81 OK (3/20/2007 a) ND<3.64 U (1/16/2006 ~ (3.81 - 3.64)/(12 - 1) 0.0154545 ND<4.655 OK (6/13/2007 ~) ND<3.64 U (1/16/2006 ~ (4.655 - 3.64)/(13 - 1) 0.0845833 ND<3.19 U (2/13/2006 a) ND<2.46 U (2/9/2006 a) (3.19 - 2.46)/(3 - 2) 0.73 2.21 U (3/13/2006 a) ND<2.46 U (2/9/2006 a) (2.21 - 2.46)/(4 - 2) -0.125 ND<3.85 U (3/20/2006 a) ND<2.46 U (2/9/2006 a) (3.85 - 2.46)/(5 - 2) 0.463333 ND<3.77 U (4/13/2006 a) ND<2.46 U (2/9/2006 a) (3.77 - 2.46)/(6 - 2) 0.3275 O ND<3.56 OK (5/3/2006 a) ND<2.46 U (2/9/2006 a) (3.56 - 2.46)/(7 - 2) 0.22 ND<3.27 OK (5/4/2006 a) ND<2.46 U (2/9/2006 a) (3.27 - 2.46)/(8 - 2) 0.135 ND<3.83 OK (7/10/2006 a) ND<2.46 U (2/9/2006 a) (3.83 - 2.46)/(9 - 2) 0.195714 ND<2.5 OK (10/4/2006 -) ND<2.46 U (2/9/2006 a) (2.5 - 2.46)/(10 - 2) 0.005 ND<3.47 OK (1/2/2007 a) ND<2.46 U (2/9/2006 a) (3.47 - 2.46)/(11 - 2) 0.112222 ND<3.81 OK (3/20/2007 a) ND<2.46 U (2/9/2006 a) (3.81 - 2.46)/(12- 2) 0.135 ND<4.655 OK (6/13/2007 ~) ND<2.46 U (2/9/2006 a) (4.655 - 2.46)/(13 - 2) 0.199545 2.21 U (3/13/2006 a) ND<3.19 U (2/13/2006 a) (2.21 - 3.19)/(4 - 3) -0.98 ND<3.85 U (3/20/2006 a) ND<3.19 U (2/13/2006 a) (3.85 - 3.19)/(5 - 3) 0.33 ND<3.77 U (4/13/2006 a) ND<3.19 U (2/13/2006 a) (3.77 - 3.19)/(6 - 3) 0.193333 ND<3.56 OK (5/3/2006 a) ND<3.19 U (2/13/2006 a) (3.56- 3.19)/(7 - 3) 0.0925 ND<3.27 OK (5/4/2006 a) ND<3.19 U (2/13/2006 a) (3.27 - 3.19)/(8 - 3) 0.016 ND<3.83 OK (7/10/2006 a) ND<3.19 U (2/13/2006 a). (3.83 - 3.19)/(9 - 3) 0.106667 ND<2.5 OK (10/4/2006 -) ND<3.19 U (2/1312006 a) (2.5- 3.19)/(10 - 3) -0.0985714 ND<3.47 OK (1/2/2007 a) ND<3.19 U (2/13/2006 a) (3.47- 3.19)/(11 - 3) 0.035 ND<3.81 OK (3/20/2007 a) ND<3.19 U (2/13/2006 a) (3.81 - 3.19)/(12- 3) 0.0688889 ND<4.655 OK (6/13/2007 ~) ND<3.19 U (2/13/2006 a) (4.655 - 3.19)/(13 - 3) 0.1465 ND<3.85 U (3/20/2006 a) 2.21 U (3/13/2006 a) (3.85 - 2.21)/(5 - 4) 1.64 ND<3.77 U (4/13/2006 a) 2.21 U (3/13/2006 a) (3.77 - 2.21)/(6 - 4) 0.78 ND<3.56 OK (5/3/2006 a) 2.21 U (3/13/2006 a) (3.56 - 2.21)/(7 - 4) 0.45 ND<3.27 OK (5/4/2006 a) 2.21 U (3/13/2006 a) (3.27 - 2.21)/(8 - 4) 0.265 ND<3.83 OK (7/10/2006 a) 2.21 U (3/13/2006 a) (3.83 - 2.21)/(9 - 4) 0.324 ND<2.5 OK (10/4/2006 -) 2.21 U (3/13/2006 a) (2.5- 2.21)/(10 - 4) 0.0483333 ND<3.47 OK (1/2/2007 a) 2.21 U (3/13/2006 a) (3.47 - 2.21)/(11 - 4) 0.18

. ND<3.81 OK (3/20/2007 a)

ND<4.655 OK (6/13/2007 ~)

2.21 2.21 U (3/13/2006 U (3/13/2006 a) a)

(3.81 - 2.21)/(12 - 4)

(4.655 - 2.21 )/(13- 4) 0.2 0.271667 ND<3.77 U (4/13/2006 a) ND<3.85 U (3/20/2006 a) (3.77 - 3.85)/(6 - 5) -0.08 Page 1

.ND<3.56 ND<3.27 OK (5/3/2006 a)

OK (5/4/2006 a)

ND<3.83 OK (7/10/2006 a)

ND<3.85 ND<3.85 ND<3.85 U (3/20/2006 U (3/20/2006 U (3/20/2006 a) a)

a)

(3.56 - 3.85)/(7 - 5)

(3.27 - 3.85)/(8 - 5)

(3.83 - 3.85)/(9 - 5)

-0.145

-0.193333

-0.005 ND<2.5 OK (10/4/2006 -) ND<3.85 U (3/20/2006 a) (2.5- 3.85)/(10- 5) -0.27 ND<3.47 OK (1/2/2007 a) ND<3.85 U (3/20/2006 a) (3.47 - 3.85)/(11 - 5) -0.0633333 ND<3.81 OK (3/20/2007 a) ND<3.85 U (3/20/2006 a) (3.81 - 3.85)/(12- 5) -0.00571429 ND<4.655 OK (6/13/2007 -) ND<3.85 U (3/20/2006 a) (4.655 - 3.85)/(13- 5) 0.100625 ND<3.56 OK (5/3/2006 a) ND<3.77 U (4/13/2006 a) (3.56 - 3.77)/(7 - 6) -0.21 ND<3.27 OK (5/4/2006 a) ND<3.77 U (4/13/2006 a) (3.27 - 3.77)/(8 - 6) -0.25 ND<3.83 OK (7/10/2006 a) ND<3.77 U (4/13/2006 a) (3.83 - 3.77)/(9 - 6) 0.02 ND<2.5 OK (10/4/2006 -) ND<3.77 U (4/13/2006 a) (2.5- 3.77)/(10- 6) -0.3175 ND<3.47 OK (1/2/2007 a) ND<3.77 U (4/13/2006 a) (3.47 - 3.77)/(11 - 6) -0.06 ND<3.81 OK (3/20/2007 a) ND<3.77 U (4/13/2006 a) (3.81 - 3.77)/(12- 6) 0.00666667 ND<4.655 OK (6/13/2007 ~) ND<3.77 U (4/13/2006 a) (4.655 - 3.77)/(13- 6) 0.126429 ND<3.27.OK (5/4/2006 a) ND<3.56 OK (5/3/2006 a) (3.27 - 3.56)/(8 - 7) -0.29 ND<3.83 OK (7/10/2006 a) ND<3.56 OK (5/3/2006 a) (3.83 - 3.56)/(9 - 7) 0.135 ND<2.5 OK (10/4/2006 -) ND<3.56 OK (5/3/2006 a) (2.5- 3.56)/(10- 7) -0.353333 ND<3.47 OK (1/2/2007 a) ND<3.56 OK (5/3/2006 a) (3.47 - 3.56)/(11 - 7) -0.0225 ND<3.81 OK (3/20/2007 a) ND<3.56 OK (5/3/2006 a) (3.81 - 3.56)/(12- 7) 0.05 ND<4.655 OK (6/13/2007 -) ND<3.56 OK (5/3/2006 a) (4.655 - 3.56)/(13 - 7) 0.1825 ND<3.83 OK (7/10/2006 a) ND<3.27 OK (5/4/2006 a) (3.83 - 3.27)/(9 - 8) 0.56 ND<2.5 OK (10/4/2006 -) ND<3.27 OK (5/4/2006 a) (2.5- 3.27)/(10- 8) -0.385 ND<3.47 OK (1/2/2007 a) ND<3.27 OK (5/4/2006 a) (3.47 - 3.27)/(11 - 8) 0.0666667 ND<3.81 OK (3/20/2007 a) ND<3.27 OK (5/4/2006 a) (3.81 - 3.27)/(12 - 8) 0.135 ND<4.655 OK (6/13/2007 ~) ND<3.27 OK (5/4/2006 a) (4.655 - 3.27)/(13 - 8) 0.277 ND<2.5 OK (10/4/2006 -) ND<3.83 OK (7/10/2006 a) (2.5 - 3.83)/(10 - 9) -1.33 ND<3.47 OK (1/2/2007 a) ND<3.83 OK (7/10/2006 a) (3.47 - 3.83)/(11 - 9) -0.18 ND<3.81 OK (3/20/2007 a) ND<3.83 OK (7/10/2006 a) (3.81 - 3.83)/(12 - 9) -0.00666667 ND<4.655 OK (6/13/2007 ~) ND<3.83 OK (7/10/2006 a) (4.655 - 3.83)/(13 - 9) 0.20625 ND<3.47 OK (1/2/2007 a) ND<2.5 OK (10/4/2006 ~) (3.47 - 2.5)/(11 - 10) 0.97 ND<3.81 OK (3/20/2007 a) ND<2.5 OK (10/4/2006 ~) (3.81 - 2.5)/(12 - 10) 0.655 ND<4.655 OK (6/13/2007 -) ND<2.5 OK (10/4/2006 ~) (4.655 - 2.5)/(13 - 10) 0.718333 ND<3.81 OK (3/20/2007 a) ND<3.47 OK (1/2/2007 a) (3.81 - 3.47)/(12 - 11) 0.34 ND<4.655 OK (6/13/2007 ~) ND<3.47 OK (1/2/2007 a) (4.655 - 3.47)/(13 - 11) 0.5925 ND<4.655 OK (6/13/2007 ~) ND<3.81 OK (3/20/2007 a) (4.655 - 3.81)/(13 - 12) 0.845 Number of Q values = 78 Ordered 0 Values n Q 1 -1.33 2 -1.18 3 -0.98 4 -0.476667 5 -0.385 6 -0.353333 7 -0.3175 8 -0.29 9 -0.27 Page 2

-0.25

. 11 10 12

-0.225

-0.21 13 -0.193333 14 -0.18 15 -0.145 16 -0.126667 17 -0.125 18 -0.0985714 19 -0.08 20 -0.0633333 21 -0.06 22 -0.0528571 23 -0.0225 24 -0.017 25 -0.0133333 26 -0.00666667 27 -0.00571429 28 -0.005 29 0.005 30 0.00666667 31 0.0154545 32 0.016 33 0.02 34 0.02375 35 0.026 36 0.035 37 0.0483333 38 0.05 39 0.0525 40 0.0666667 41 0.0688889 42 0.0845833 43 0.0925 44 0.100625 45 0.106667 46 0.112222 47 0.126429 48 0.135 49 0.135 50 0.135 51 0.135 52 0.1465 53 0.18 54 0.1825 55 0.193333 56 0.195714 57 0.199545 58 0.2 59 0.20625 60 0.22 61 0.265 62 0.271667 63 0.277

. 64 65 66 0.324 0.3275 0.33 Page 3

. 68 67 69 0.45 0.34 0.463333 70 0.56 71 0.5925 72 0.655 73 0.718333 74 0.73 75 0.78 76 0.845 77 0.97 78 1.64 Sen's Estimator (Median Q) is 0.0595833 Time Period Observations 1/16/2006 1 2/9/2006 1 2/13/2006 1 3/13/2006 1 3/20/2006 1 4/13/2006 1 5/3/2006 1 5/4/2006 1 7/10/2006 1 10/4/2006 1 1/2/2007 1

. 3/20/2007 6/13/2007 1

1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 4836 b = 15444 c = 312 Group Variance = 268.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 26.9609 M1 = (78 - 26.9609)/2.0 = 25.5196 M2 = (78 + 26.9609)/2.0 + 1 = 53.4804 Lower limit is -0.00666667 = Q(26)

Upper limit is 0.18 = Q(53)

-0.00666667 < 0 < 0.18 indicating no trend in data.

Page 4

Cs-1 37 6 Time-Series Graph I

oml 0 o

SamoIa Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW139 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<2.7 OK (1/4/2007 a) ND<3.9 OK (11/6/2006 a) (2.7 - 3.9)/(2 - 1) -1.2 ND<3.32 OK (3/12/2007 a) ND<3.9 OK (11/6/2006 a) (3.32 - 3.9)/(3 - 1) -0.29 ND<5.29 OK (6/13/2007 a) ND<3.9 OK (11/6/2006 a) (5.29 - 3.9)/(4 - 1) 0.463333 ND<3.32 OK (3/12/2007 a) ND<2.7 OK (1/4/2007 a) (3.32 - 2.7)/(3 - 2) 0.62 ND<5.29 OK (6/13/2007 a) ND<2.7 OK (1/4/2007 a) (5.29 - 2.7)/(4 - 2) 1.295 ND<5.29 OK (6/13/2007 a) ND<3.32 OK (3/12/2007 a) (5.29 - 3.32)/(4 - 3) 1.97 Number of Q values = 6 Ordered 0 Values n Q 1 -1.2 2 -0.29 3 0.463333

. 4 5

0.62 1.295 6 1.97 Sen's Estimator (Median Q) is 0.541667 Time Period Observations 11/6/2006 1 1/4/2007 1 3/12/2007 1 6/13/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a= 156 b=216 c = 24 Group Variance = 8.66667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 4.84232 M1 = (6 - 4.84232)/2.0 = 0.578842 M2 = (6 + 4.84232)/2.0 + 1 = 6.42116

. Lower limit is -1.2 = Q(1)

Upper limit is 1.97 = Q(6)

-1.2 < 0 < 1.97 indicating no trend in data.

Page 1

Cs-137 Time-Series Graph of MW140 7

C-)

9 4 I I IIII Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW140 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 3.87 OK (1/4/2007 a) ND<3.47 OK (11/6/2006 a) (3.87- 3.47)/(2 - 1) 0.4 ND<7.97 OK (3/14/2007 a) ND<3.47 OK (11/6/2006 a) (7.97 - 3.47)/(3 - 1) 2.25 ND<6.02 OK (6/13/2007 a) ND<3.47 OK (11/6/2006 a) (6.02 - 3.47)/(4 - 1) 0.85 ND<7.97 OK (3/14/2007 a) 3.87 OK (1/4/2007 a) (7.97 - 3.87)/(3 - 2) 4.1 ND<6.02 OK (6/13/2007 a) 3.87 OK (1/4/2007 a) (6.02 - 3.87)/(4 - 2) 1.075 ND<6.02 OK (6/13/2007 a) ND<7.97 OK (3/14/2007 a) (6.02 - 7.97)/(4 - 3) -1.95 Number of 0 values = 6 Ordered 0 Values n Q 1 -1.95 2 0.4 3 0.85

. 4 5

1.075 2.25 6 4.1 Sen's Estimator (Median Q) is 0.9625 Time Period Observations 11/6/2006 1 1/4/2007- 1 3/14/2007 1 6/13/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=o E=0 F=0 a= 156 b =216 c = 24 Group Variance = 8.66667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 4.84232 M1 = (6 - 4.84232)/2.0 = 0.578842 M2 = (6 + 4.84232)/2.0 + 1 = 6.42116

.Upper Lower limit is -1.95 = Q(1) limit is 4.1 = Q(6)

-1.95 < 0 < 4.1 indicating no trend in data.

Page 1

Cs-1 37 Time-Series Graph of MW508D 20.

g 15 0 1

. 0iC U0 Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW508D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 2.88 U (2/16/2006 ~) ND<3.54 U (1/9/2006 a) (2.88- 3.54)/(2 - 1) -0.66 ND<2.68 U (3/13/2006 a) ND<3.54 U (1/9/2006 a) (2.68 - 3.54)/(3 - 1) -0.43 ND<3.4 U (3/19/2006 a) ND<3.54 U (1/9/2006 a) (3.4 - 3.54)/(4 - 1) -0.0466667 ND<4.35 U (4/19/2006 a) ND<3.54 U (1/9/2006 a) (4.35 - 3.54)/(5 - 1) 0.2025 ND<5.82 OK (5/12/2006 a) ND<3.54 U (1/9/2006 a) (5.82 - 3.54)/(6 - 1) 0.456 ND<4.4 OK (7/8/2006 a) ND<3.54 U (1/9/2006 a) (4.4 - 3.54)/(7 - 1) 0.143333 ND<3.17 OK (10/6/2006 a) ND<3.54 U (1/9/2006 a) (3.17- 3.54)/(8 - 1) -0.0528571 ND<3.3 OK (1/2/2007 a) ND<3.54 U (1/9/2006 a) (3.3- 3.54)/(9 - 1) -0.03 ND<1 1.4 OK (3/13/2007 a) ND<3.54 U (1/9/2006 a) (11.4 - 3.54)/(10 - 1) 0.873333 ND<3.33 OK (6/9/2007 a) ND<3.54 U (1/9/2006 a) (3.33 - 3.54)/(11 - 1) -0.021 ND<2.68 U (3/13/2006 a) 2.88 U (2/16/2006 ~) (2.68 - 2.88)/(3 - 2) -0.2 ND<3.4 U (3/19/2006 a) 2.88 U (2/16/2006 ~) (3.4 - 2.88)/(4 - 2) 0.26 ND<4.35 U (4/19/2006 a) 2.88 U (2/16/2006 ~) (4.35 - 2.88)/(5 - 2) 0.49 ND<5.82 OK (5/12/2006 a) 2.88 U (2/16/2006 ~) (5.82 - 2.88)/(6 - 2) 0.735 ND<4.4 OK (7/8/2006 a) 2.88 U (2/16/2006 ~) (4.4 - 2.88)/(7 - 2) 0.304

. ND<3.17 OK (10/6/2006 a)

ND<3.3 OK (1/2/2007 a)

ND<1 1.4 OK (3/13/2007 a) 2.88 2.88 2.88 U (2/16/2006 U (2/16/2006 U (2/16/2006

~)

(3.17 - 2.88)/(8 - 2)

(3.3 - 2.88)/(9 - 2)

(11.4- 2.88)/(10 - 2) 0.0483333 0.06 1.065 ND<3.33 OK (6/9/2007 a) 2.88 U (2/16/2006 ~) (3.33 - 2.88)/(11 - 2) 0.05 ND<3.4 U (3/19/2006 a) ND<2.68 U (3/13/2006 a) (3.4 - 2.68)/(4 - 3) 0.72 ND<4.35 U (4/19/2006 a) ND<2.68 U (3/13/2006 a) (4.35 - 2.68)/(5 - 3) 0.835 ND<5.82 OK (5/12/2006 a) ND<2.68 U (3/13/2006 a) (5.82 - 2.68)/(6 - 3) 1.04667 ND<4.4 OK (7/8/2006 a) ND<2.68 U (3/13/2006 a) (4.4 - 2.68)/(7 - 3) 0.43 ND<3.17 OK (10/6/2006 a) ND<2.68 U (3/13/2006 a) (3.17 - 2.68)/(8 - 3) 0.098 ND<3.3 OK (1/2/2007 a) ND<2.68 U (3/13/2006 a) (3.3 - 2.68)/(9 - 3) 0.103333 ND<1 1.4 OK (3/13/2007 a) ND<2.68 U (3/13/2006 a) (11.4- 2.68)/(10- 3) 1.24571 ND<3.33 OK (6/9/2007 a) ND<2.68 U (3/13/2006 a) (3.33 - 2.68)/(11 - 3) 0.08125 ND<4.35 U (4/19/2006 a) ND<3.4 U (3/19/2006 a) (4.35 - 3.4)/(5 - 4) 0.95 ND<5.82 OK (5/12/2006 a) ND<3.4 U (3/19/2006 a) (5.82 - 3.4)/(6 - 4) 1.21 ND<4.4 OK (7/8/2006 a) ND<3.4 U (3/19/2006 a) (4.4 - 3.4)/(7 - 4) 0.333333.

ND<3.17 OK (10/6/2006 a) ND<3.4 U (3/19/2006 a) (3.17 - 3.4)/(8- 4) -0.0575' ND<3.3,OK (1/2/2007 a) ND<3.4 U (3/19/2006 a) (3.3 - 3.4)/(9 - 4) -0.02 ND<I 1.4 OK (3/13/2007 a) ND<3.4 U (3/19/2006 a) (11.4- 3.4)/(10 - 4) 1.33333 ND<3.33 OK (6/9/2007 a) ND<3.4 U (3/19/2006 a) (3.33 - 3.4)/(11 - 4) -0.01 ND<5.82 OK (5/12/2006 a) ND<4.35 U (4/19/2006 a) (5.82 - 4.35)/(6 - 5) 1.47 ND<4.4 OK (7/8/2006 a) ND<4.35 U (4/19/2006 a) (4.4 - 4.35)/(7 - 5) 0.025 ND<3.17 OK (10/6/2006 a) ND<4.35 U (4/19/2006 a) (3.17 - 4.35)/(8 - 5) -0.393333 ND<3.3 OK (1/2/2007 a) ND<4.35 U (4/19/2006 a) (3.3 - 4.35)/(9 - 5) -0.2625 ND<1 1.4 OK (3/13/2007 a) ND<4.35 U (4/19/2006 a) (11.4- 4.35)/(10 - 5) 1.41 ND<3.33 OK (6/9/2007 a) ND<4.35 U (4/19/2006 a) (3.33 - 4.35)/(11 - 5) -0.17

. ND<4.4 OK (7/8/2006 a)

ND<3.17 OK (10/6/2006 a)

ND<5.82 OK (5/12/2006 a)

(4.4 - 5.82)/(7 - 6)

(3.17 - 5.82)/(8 - 6)

-1.42

-1.325 Page 1

. ND<1 1.4OK ND<3.3 OK(1/2/2007 (3/13/2007a) a)

ND<3.33 OK (6/9/2007 a)

ND<5.82 OK (5/12/2006 a)

(3.3 - 5.82)/(9 - 6)

(11.4- 5.82)/(10- 6)

(3.33 - 5.82)/(11 - 6)

-0.84 1.395

-0.498 ND<3.17 OK (10/6/2006 a) ND<4.4 OK (7/8/2006 a) (3.17- 4.4)/(8- 7) -1.23 ND<3.3 OK (1/2/2007 a) ND<4.4 OK (7/8/2006 a) (3.3 - 4.4)/(9 - 7) -0.55 ND<I 1.4 OK (3/13/2007 a) ND<4.4 OK (7/8/2006 a) (11.4- 4.4)/(10- 7) 2.33333 ND<3.33 OK (6/9/2007 a) ND<4.4 OK (7/8/2006 a) (3.33 - 4.4)/(11 - 7) -0.2675 ND<3.3 OK (1/2/2007 a) ND<3.17 OK (10/6/2006 a) (3.3- 3.17)/(9- 8) 0.13 ND<1 1.4 OK (3/13/2007 a) ND<3.17 OK (10/6/2006 a) (11.4- 3.17)/(10- 8) 4.115 ND<3.33 OK (6/9/2007 a) ND<3.17 OK (10/6/2006 a) (3.33- 3.17)/(11 - 8) 0.0533333 (11.4- 3.3)/(10- 9)

ND<1 1.4 OK (3/13/2007 a) ND<3.3 OK (1/2/2007 a) 8.1 ND<3.33 OK (6/9/2007 a) ND<3.3 OK (1/2/2007 a) (3.33 - 3.3)/(11 - 9) 0.015 ND<3.33 OK (6/9/2007 a) ND<I 1.4 OK (3/13/2007 a) (3.33- 11.4)/(11 - 10) -8.07 Number of Q values = 55 Ordered Q Values n a 1 -8.07 2 -1.42 3 -1.325 4 -1.23 5 -0.84 6 -0.66 7 -0.55 8 -0.498 9 -0.43 10 -0.393333 11 -0.2675 12 -0.2625 13 -0.2 14 70.17 15 -0.0575 16 -0.0528571 17 -0.0466667 18 -0.03 19 -0.021 20 -0.02 21 -0.01 22 0.015 23 0.025 24 0.0483333 25 0.05 26 0.0533333 27 0.06 28 0.08125 29 0.098 30 0.103333 31 0.13 32 0.143333 33 0.2025 34 0.26 Page 2

35 0.304 36 0.333333 37 0.43 38 0.456 39 0.49 40 0.72 41 0.735 42 0.835 43 0.873333 44 0.95 45 1.04667 46 1.065 47 1.21 48 1.24571 49 1.33333 50 1.395 51 1.41 52 1.47 53 2.33333 54 4.115 55 8.1 Sen's Estimator (Median 0) is 0.08125 Time Period Observations 1/9/2006 1 2/16/2006 1

. 3/13/2006 3/19/2006 4/19/2006 1

1 1

5/12/2006 1 7/8/2006 1 10/6/2006 1 1/2/2007 1 3/13/2007 1 6/9/2007 1 There are 0 time periods with multiple data A=0 B_0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.0466667 = Q(17)

Upper limit is 0.49 = Q(39)

-0.0466667 < 0 < 0.49 indicating no trend in data.

Page 3

Cs-I 37 oC -

8 0

C- !

o=

° o

o*

S0e o*

Sample Date Page 1

Sen's Slope Analysis Parameter: Cs-137 Location: MW508S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<4.49 U (2/10/2006 a) ND<8.65 OK (1/10/2006 a) (4.49- 8.65)/(2 - 1) -4.16 ND<2.55 U (3/18/2006 a) ND<8.65 OK (1/10/2006 a) (2.55- 8.65)/(3 - 1) -3.05 ND<3.56 U (4/19/2006 a) ND<8.65 OK (1/10/2006 a) (3.56- 8.65)/(4 - 1) -1.69667 ND<3.46 OK (5/4/2006 a) ND<8.65 OK (1/10/2006 a) (3.46- 8.65)/(5 - 1) -1.2975 ND<3.74 OK (7/11/2006 a) ND<8.65 OK (1/10/2006 a) (3.74- 8.65)/(6 - 1) -0.982 ND<3.52 OK (10/6/2006 a) ND<8.65 OK (1/10/2006 a) (3.52 - 8.65)/(7 - 1) -0.855 ND<3.62 OK (1/5/2007 a) ND<8.65 OK (1/10/2006 a) (3.62 - 8.65)/(8 - 1) -0.718571 ND<2.97 OK (3/12/2007 a) ND<8.65 OK (1/10/2006 a) (2.97- 8.65)/(9 - 1) -0.71 ND<3.79 OK (6/9/2007 a) ND<8.65 OK (1/10/2006 a) (3.79- 8.65)/(10 - 1) -0.54 ND<2.55 U (3/18/2006 a) ND<4.49 U (2/10/2006 a) (2.55 - 4.49)/(3 - 2) -1.94 ND<3.56 U (4/19/2006 a) ND<4.49 U (2/10/2006 a) (3.56 - 4.49)/(4 - 2) -0.465 ND<3.46 OK (5/4/2006 a) ND<4.49 U (2/10/2006 a) (3.46 - 4.49)/(5 - 2) -0.343333 ND<3.74 OK (7/11/2006 a) ND<4.49 U (2/10/2006 a) (3.74 - 4.49)/(6 - 2) -0.1875 ND<3.52 OK (10/6/2006 a) ND<4.49 U (2/10/2006 a) (3.52 - 4.49)/(7 - 2) -0.194 ND<3.62 OK (1/5/2007 a) ND<4.49 U (2/10/2006 a) (3.62 - 4.49)/(8 - 2) -0.145 ND<2.97 OK (3/12/2007 a) ND<4.49 U (2/10/2006 a) (2.97 - 4.49)/(9 - 2) -0.217143 ND<3.79 OK (6/9/2007 a) ND<4.49 U (2/10/2006 a) (3.79 - 4.49)/(10 - 2) -0.0875 ND<3.56 U (4/19/2006 a) ND<2.55 U (3/18/2006 a) (3.56 - 2.55)/(4 - 3) 1.01 ND<3.46 OK (5/4/2006 a) ND<2.55 U (3/18/2006 a) (3.46 - 2.55)/(5 - 3) 0.455 ND<3.74 OK (7/11/2006 a) ND<2.55 U (3/18/2006 a) (3.74 - 2.55)/(6 - 3) 0.396667 ND<3.52 OK (10/6/2006 a) ND<2.55 U (3/18/2006 a) (3.52 - 2.55)/(7 - 3) 0.2425 ND<3.62 OK (1/5/2007 a) ND<2.55 U (3/18/2006 a) (3.62 - 2.55)/(8 - 3) 0.214 ND<2.97 OK (3/12/2007 a) ND<2.55 U (3/18/2006 a) (2.97 - 2.55)/(9 - 3) 0.07 ND<3.79 OK (6/9/2007 a) ND<2.55 U (3/18/2006 a) (3.79 - 2.55)/(10- 3) 0.177143 ND<3.46 OK (5/4/2006 a) ND<3.56 U (4/19/2006 a) (3.46 - 3.56)/(5 - 4) -0.1 ND<3.74 OK (7/11/2006 a) ND<3.56 U (4/19/2006 a) (3.74 - 3.56)/(6 - 4) 0.09 ND<3.52 OK (10/6/2006 a) ND<3.56 U (4/19/2006 a) (3.52 - 3.56)/(7 - 4) -0.0133333 ND<3.62 OK (1/5/2007 a) ND<3.56 U (4/19/2006 a) (3.62 - 3.56)/(8 - 4) 0.015 ND<2.97 OK (3/12/2007 a) ND<3.56 U (4/19/2006 a) (2.97 - 3.56)/(9 - 4) -0.118 ND<3.79 OK (6/9/2007 a) ND<3.56 U (4/19/2006 a) (3.79 - 3.56)/(10 - 4) 0.0383333 ND<3.74 OK (7/11/2006 a) ND<3.46 OK (5/4/2006 a) (3.74 - 3.46)/(6 - 5) 0.28 ND<3.52 OK (10/6/2006 a) ND<3.46 OK (5/4/2006 a), (3.52 - 3.46)/(7 - 5) 0.03 ND<3.62 OK (1/5/2007 a) ND<3.46 OK (5/4/2006 a) (3.62 - 3.46)/(8 - 5) 0.0533333 ND<2.97 OK (3/12/2007 a) ND<3.46 OK (5/4/2006 a) (2.97 - 3.46)/(9 - 5) -0.1225 ND<3.79 OK (6/9/2007 a) ND<3.46 OK (5/4/2006 a) (3.79- 3.46)/(10- 5) 0.066 ND<3.52 OK (10/6/2006 a) ND<3.74 OK (7/11/2006 a) (3.52 - 3.74)/(7 - 6) -0.22 ND<3.62 OK (1/5/2007 a) ND<3.74 OK (7/11/2006 a) (3.62 - 3.74)/(8 - 6) -0.06 ND<2.97 OK (3/12/2007 a) ND<3.74 OK (7/11/2006 a) (2.97 - 3.74)/(9 - 6) -0.256667 ND<3.79 OK (6/9/2007 a) ND<3.74 OK (7/11/2006 a) (3.79 - 3.74)/(10- 6) 0.0125 ND<3.62 OK (1/5/2007 a) ND<3.52 OK (10/6/2006 a) (3.62 - 3.52)/(8 - 7) 0.1 ND<2.97 OK (3/12/2007 a) ND<3.52 OK (10/6/2006 a) (2.97 - 3.52)/(9 - 7) -0.275 Page 1

ND<3.79 OK (6/9/2007 a) ND<3.52 OK (10/6/2006 a) (3.79- 3.52)/(10- 7) 0.09 ND<2.97 OK (3/12/2007 a) ND<3.62 OK (1/5/2007 a) (2.97 - 3.62)/(9 - 8) -0.65 ND<3.79 OK (6/9/2007 a) ND<3.62 OK (1/5/2007 a) (3.79- 3.62)/(10- 8) 0.085 ND<3.79 OK (6/9/2007 a) ND<2.97 OK (3/12/2007 a) (3.79- 2.97)/(10- 9) 0.82 Number of 0 values = 45 Ordered Q Values n Q 1 -4.16 2 -3.05 3 -1.94 4 -1.69667 5 -1.2975 6 -0.982 7 -0'855 8 -0.718571 9 -0.71 10 -0.65 11 -0.54 12 -0.465 13 -0.343333 14 -0.275

. 15 16 17

-0.256667

-0.22

-0.217143 18 -0.194 19 -0.1875 20 -0.145 21 -0.1225 22 -0.118 23 -0.1 24 -0.0875 25 -0.06 26 -0.0133333 27 0.0125 28 0.015 29 0.03 30 0.0383333 31 0.0533333 32 0.066 33 0.07 34 0.085 35 0.09 36 0.09 37 0.1 38 0.177143 39 0.214 40 0.2425 41 0.28 42 0.396667 43 0.455 44 0.82 45 1.01 Page 2

Sen's Estimator (Median Q) is -0.1 Time Period Observations 1/10/2006 1 2/10/2006 1 3/18/2006 1 4/19/2006 1 5/4/2006 1 7/11/2006 1 10/6/2006 1 1/5/2007 1 3/12/2007 1 6/9/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2= 1.64485

.M1 C = 18.39

= (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.343333 = Q(13)

Upper limit is 0.07 = Q(33)

-0.343333 < 0 < 0.07 indicating no trend in data.

Page 3

Attachment 2 June 2007 Statistical Trend Analysis Data Sheets - TEDE

Trend Analysis - TEDE Q4 2005 through June 2007

TEDE 0.041 Time-Series Graph of AST-5 0.035 0.03 0.025 E

0.02 0

0.015 0

0.01 0.005 (0 (o

(,

ln (0 0 0 0o 00 0(o 00, 0(\ CD (NI 0 0 tý- (0 04 Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: AST-5 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (411/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 0.0220092 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0.0220092 - 0)/(7 - 1) 0.0036682 0.0189417 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0.0189417 - 0)/(8 - 1) 0.00270596 0.0338574 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0.0338574 - 0)/(9 - 1) 0.00423217 0.0200153 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0.0200153 - 0)/(10 - 1) 0.00222393 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/112006 a) (0 - 0)/(6 - 2) 0 0.0220092 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0.0220092 - 0)/(7 - 2) 0.00440184 0.0189417 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0.0189417 - 0)/(8 - 2) 0.00315695 0.0338574 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0.0338574 - 0)/(9 - 2) 0.00483677 0.0200153 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0.0200153 - 0)/(10 - 2) 0.00250192 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 0.0220092 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0.0220092 - 0)/(7 - 3) 0.0055023 0.0189417 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0.0189417 - 0)/(8 - 3) 0.00378834 0.0338574 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0.0338574 - 0)/(9 - 3) 0.00564289 0.0200153 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0.0200153 - 0)/(10 - 3) 0.00285933 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 0.0220092 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0.0220092 - 0)/(7 - 4) 0.0073364 0.0189417 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0.0189417 - 0)/(8 - 4) 0.00473543 0.0338574 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0.0338574 - 0)/(9 - 4) 0.00677147 0.0200153 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0.0200153 - 0)/(10 - 4) 0.00333589 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 0.0220092 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0.0220092 - 0)/(7 - 5) 0.0110046 0.0189417 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0.0189417 - 0)/(8 - 5) 0.00631391 0.0338574 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0.0338574 - 0)/(9 - 5) 0.00846434 0.0200153 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0.0200153 - 0)/(10 - 5) 0.00400307 0.0220092 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0.0220092 - 0)/(7 - 6) 0.0220092 0.0189417 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0.0189417 - 0)/(8 - 6) 0.00947086 0.0338574 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0.0338574 - 0)/(9 - 6) 0.0112858 0.0200153 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0.0200153 - 0)/(10 - 6) 0.00500383 0.0189417 U (12/1/2006 a) 0.0220092 U (9/1/2006 a) (0.0189417- 0.0220092)/(8 -7) -0.00306748 0.0338574 U (3/5/2007 a) 0.0220092 U (9/1/2006 a) (0.0338574 - 0.0220092)/(9 - 7) 0.00592408 Page 1

0.0200153 U (6/6/2007 a) 0.0220092 U (9/1/2006 a) (0.0200153 - 0.0220092)/(10 - 7) -0.000664622 0.0338574 U (3/5/2007 a) 0.0189417 U (12/1/2006 a) (0.0338574 - 0.0189417)/(9 - 8) 0.0149156 0.0200153 U (6/6/2007 a) 0.0189417 U (12/1/2006 a) (0.0200153 - 0.0189417)/(10 - 8) 0.00053681 0.0200153 U (6/6/2007 a) 0.0338574 U (3/5/2007 a) (0.0200153 - 0.0338574)/(10 - 9) -0.013842 Number of Q values = 45 Ordered Q Values n Q 1 -0.013842 2 -0.00306748 3 -0.000664622 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0

. 15 16 17 0

0 0

18 0 19 0.00053681 20 0.00222393 21 0.00250192 22 0.00270596 23 0.00285933 24 0.00315695 25 0.00333589

ý26 0.0036682 27 0.00378834 28 0.00400307 29 0.00423217 30 0.00440184 31 0.00473543 32 0.00483677 33 0.00500383 34 0.0055023 35 0.00564289 36 0.00592408 37 0.00631391 38 0.00677147 39 0.0073364 40 0.00846434 41 0.00947086 42 0.0110046 43 0.0112858 44 0.0149156 45 0.0220092 Page 2

. Sen's Estimator (Median Q) is 0.00285933 Tied Group Value Members 1 0 6 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A =510 B=0 C =120 D=0 E =30 F=0 a = 2250 b = 6480

. c= 180 Group Variance = 96.6667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 16.1721 M1 = (45 - 16.1721)/2.0 = 14.414 M2 = (45 + 16.1721)/2.0 + 1 = 31.586 Lower limit is 0 = Q(14)

Upper limit is 0.00483677 = Q(32) 0 < 0 < 0.00483677 indicating no trend in data.

Page 3

TEDE Time-Series Graph of AT-I 0.01 0.008 0.008 0.007

-. 0.006 E

S 0.005 (D- 0.004 0) 0.003 0.002 0.001 0.003 CC O I.

0 0 0 0 o o CD 0 0 0 0 N.-

o 0 0 0 (NI (NJ 0 0 Sample Date Page 1

. Sen's Parameter:Slope Location: AT-1 TEDEAnalysis Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)I/-k) Q ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (611/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 0.00996932 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0.00996932 - 0)/(8 - 1) 0.00142419 ND<0 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0 - 0)1(10 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/112006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 0.00996932 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0.00996932 - 0)/(8 - 2) 0.00166155 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 0.00996932 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0.00996932 - 0)/(8 - 3) 0.00199387 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(9 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/112006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 0.00996932 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0.00996932 - 0)1(8 - 4) 0.00249233 ND<0 U,(3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 0.00996932 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0.00996932 - 0)/(8 - 5) 0.00332311 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)1(10 - 5) 0 ND<0U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 0.00996932 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0.00996932 - 0)/(8 - 6) 0.00498466 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(10 - 6) 0 0.00996932 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0.00996932 - 0)/(8 - 7) 0.00996932 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) , 0 Page 1

ND<O U (6/6/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(10 - 7) 0 ND<0 U (3/5/2007 a) 0.00996932 U (12/1/2006 a) (0 - 0.00996932)/(9 - 8) -0.00996932 ND<0 U (6/6/2007 a) 0.00996932 U (12/1/2006 a) (0 - 0.00996932)/(10 - 8) -0.00498466 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) 0 Number of Q values = 45 Ordered Q Values n Q 1 -0.00996932 2 -0.00498466 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0.00142419 40 0.00166155 41 0.00199387 42 0.00249233 43 0.00332311 44 0.00498466 45 0.00996932 Page 2

Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 9 Time Period Observations 12/11/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 1656 B=0 C = 504 D=0 E =72 F=0 a = 2250 b = 6480

. c= 180 Group Variance = 33 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 9.44896 M1 = (45 - 9.44896)/2.0 = 17.7755 M2 = (45 + 9.44896)/2.0 + 1 = 28.2245 Lower limit is 0 = Q(18)

Upper limit is 0 = Q(28) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE 10 Time-Series Graph of MW-I10OD 8

. 6 E

E.

2 e 4 0

2 D0 (O( C, C) (D (0 0)

C)

C) a 0 0 Q 0 Q Q > 0q cqJ CNI0 (NI (N 0 (N (NI Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-100D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/11/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/11/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/11/2006 a) ND<0 U (12/11/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/11/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/11/2006 a) ND<0 U (12/11/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/11/2006 a) ND<0 U (12/11/2005 a) (0 - 0)/(7 - 1) 0 ND<0 U (112/11/2006 a) ND<0 U (12/11/2005 a) (0 - 0)/(8 - 1) 0 ND<0 U (3/5/2007 a) ND<0 U (12/11/2005 a) (0 - 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/11/2005 a) (0 - 0)/(10 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/11/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/11/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/11/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/11/2006 a) (0 - 0)/(7 - 2) 0 ND<0 U (12/1/2006 a) ND<0 U (1/11/2006 a) (0 - 0)/(8 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (1/11/2006 a) (0 - 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/11/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/11/2006 a) ND<0 U (2/11/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/11/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/11/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 ND<0 U (12/11/2006 a) ND<0 U (2/11/2006 a) (0 - 0)/(8 - 3) 0 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(9 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (4/11/2006 a) ND<0_U (3/11/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/11/2006 a) ND<0 U (3/11/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/11/2006 a) ND<0 U (3/11/2006 a) (0 - 0)/(7 - 4) 0 ND<0 U (12/11/2006 a) ND<0 U (3/11/2006 a) (0 - 0)/(8 - 4) 0 ND<0 U (3/5/2007 a) ND<0 U (3/11/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/11/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/11/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/11/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 ND<0 U (12/11/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5) 0 ND<0 U (3/5/2007 a) ND<0 U (4/11/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/11/2006 a) (0 - 0)/(10 - 5) 0 ND<0 U (9/11/2006 a) ND<0 U (6/11/2006 a) (0 - 0)/(7 - 6) 0 ND<0 U (12/11/2006 a) ND<0 U (6/11/2006 a) (0 - 0)/(8 - 6) 0 ND<0 U (3/5/2007 a) ND<0 U (6/11/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(10 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<O U (6/6/2007 a) ND<O U (9/1/2006 a) (0 - 6)a(1)

- 7) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) 0 Number of Q values = 45 Ordered Q Values n Q 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0 42 0 43 0 44 0 45 0 Page 2

O1 Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 10 Time Period Observations 12/1/2005 1 111/2006 1 211/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 2250 B=0 C = 720 D=0 E =90 F=0 a = 2250 b = 6480 c= 180 Group Variance = 0 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C=0 M1 = (45 - 0)/2.0 = 22.5 M2 = (45 + 0)/2.0 + 1 = 23.5 Lower limit is 0 = Q(23)

Upper limit is 0 = Q(24) 0 < 0 < 0 indicating no trend in data.

Page 3

0 TEDE 1U1 Time-Series Graph of MW-IOOS

J E

0 Al C)

'21 I I (0 (0 LO (0 CoD 0 N C) 0 0 0 0 0 0 C) 0 C,> 0 Cs.'

N (o (0 C,'-

0 (N (N

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-100S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level Xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 ND<0 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(8 - 1) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(10 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 ND<0 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(8 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006 a) ND<0 U (2/11/2006 a) (0 - 0)/(7 - 3) 0 ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(8 - 3) 0 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(9 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4) 0 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 ND<0 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5) 0 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(10 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(8 - 6) 0 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/112006 a) (0 - 0)/(10 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<O U (6/6/2007 a) ND<O U (9/1/2006 a) (0 - 0)/(10 - 7) 0 ND<O U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<O U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) 0 Number of Q values = 45 Ordered Q Values n Q 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0 42 0 43 0 44 0 45 0 Page 2

. Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 10 Time Period Observations 1211/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 2250 B=0 C = 720 D=0 E =90 F=0 a = 2250 b = 6480

. c= 180 Group Variance = 0 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C=0 M1 = (45 - 0)/2.0 = 22.5 M2 = (45 + 0)/2.0 + 1 = 23.5 Lower limit is 0 = Q(23)

Upper limit is 0 = Q(24) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE Time-Series Graph of MW-101D III "I.

C~I.

E c

0 AI.

0 I I CD 0

C) 00 00 r-UO C> 0 0 CD (N 0 1,-

0 004 0 0C> 0 0 (N 0C, ON C, QN CD (N 0

('4 Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-101D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)l(j-k) Q ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0- 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 ND<0 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(8 - 1) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0 -0)/(l 0- 1) 0 ND<0 U (211/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 ND<0 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(8 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(8 - 3) 0 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0- 0)/(9 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4) 0 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 ND<0 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5) 0 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(10 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(8 - 6) 0 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(10 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<O U (6/6/2007 a) ND<O U (9/1/2006 a) (0 - 0)/(10 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) 0 Number of Q values = 45 Ordered Q Values n Q 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0

. 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0 42 0

. 43 0 44 0 45 0 Page 2

Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 10 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 611/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 2250 B=0 C = 720 D=0 E =90 F=0 a = 2250 b = 6480

. c= 180 Group Variance = 0 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C=0 M1 = (45 - 0)/2.0 = 22.5 M2 = (45 + 0)/2.0 + 1 = 23.5 Lower limit is 0 = Q(23)

Upper limit is 0 = Q(24) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE Time-Series Graph of MW-101S 8

.. 6 E

0 4

Q, 0

CD 00 0c SapeDt Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-101S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 ND<0 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(8 - 1) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(10 - 1) 0 ND<0 U (2/1/2006 a) ND<O U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 ND<0 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(8 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0- 0)/(4- 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(8 - 3) 0 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0- 0)/(9- 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4) 0 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10- 4) 0 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 ND<0 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5) 0 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0- 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0- 0)/(10 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(8 - 6) 0 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(10 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<0 U (6/6/2007 a) ND<0 U (9/1/2006 a) (0- 0)/(10- 7) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) 0 Number of 0 values = 45 Ordered Q Values n Q 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0

. 15 16 17 0

0 0

18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0 42 0 43 0 44 0 45 0 Page 2

. Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 10 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 2250 B=0 C = 720 D=0 E = 90 F=0 a = 2250 b = 6480 c = 180 O Group Variance = 0 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C=0 M1 = (45 - 0)/2.0 = 22.5 M2 = (45 + 0)/2.0 + 1 = 23.5 Lower limit is 0 = Q(23)

Upper limit is 0 = Q(24) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE E

0 c

C (0 CD LO C)D C 0 0 C) o 0 0CD 00 0N1 0N 00 0 0 0 CD N2 Q N CI4C C)

r. Q) LO-Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-102D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0701687 U (1/1/2006 a) 0.117715 U (12/1/2005 a) (0.0701687- 0.117715)/(2 - 1) -0.047546 0.0628834 U (2/1/2006 a) 0.117715 U (12/1/2005 a) (0.0628834 - 0.117715)/(3 - 1) -0.0274156 0.0858896 U (3/1/2006 a) 0.117715 U (12/1/2005 a) (0.0858896 - 0.117715)/(4 - 1) -0.0106084 0.0782209 U (4/1/2006 a) 0.117715 U (12/1/2005 a) (0.0782209 - 0.117715)/(5 - 1) -0.00987347 0.0674847 U (6/1/2006 a) 0.117715 U (12/1/2005 a) (0.0674847 - 0.117715)/(6 - 1) -0.010046 0.0421779 U (9/1/2006 a) 0.117715 U (12/1/2005 a) (0.0421779 - 0.117715)/(7 - 1) -0.0125895 0.0559816 U (12/1/2006 a) 0.117715 U (12/1/2005 a) (0.0559816 - 0.117715)/(8 - 1) -0.00881902 0.0521472 U (6/6/2007 a) 0.117715 U (12/1/2005 a) (0.0521472 - 0.117715)/(9 - 1) -0.00819594 0.0628834 U (2/1/2006 a) 0.0701687 U (1/1/2006 a) (0.0628834 - 0.0701687)/(3 - 2) -0.00728528 0.0858896 U (3/1/2006 a) 0.0701687 U (1/1/2006 a) (0.0858896 - 0.0701687)/(4 - 2) 0.00786043 0.0782209 U (4/1/2006 a) 0.0701687 U (1/1/2006 a) (0.0782209 - 0.0701687)/(5 - 2) 0.00268405 0.0674847 U (6/1/2006 a) 0.0701687 U (1/1/2006 a) (0.0674847 - 0.0701687)/(6 - 2) -0.000671012 0.0421779 U (9/1/2006 a) 0.0701687 U (1/1/2006 a) (0.0421779- 0.0701687)/(7- 2) -0.00559816 0.0559816 U (12/1/2006 a) 0.0701687 U (1/1/2006 a) (0.0559816 - 0.0701687)/(8- 2) -0.00236452 0.0521472 U (6/6/2007 a) 0.0701687 U (1/1/2006 a) (0.0521472 - 0.0701687)/(9- 2) -0.0025745

. 0.0858896 0.0782209 U (3/1/2006 a)

U (4/1/2006 a) 0.0628834 0.0628834 U (2/1/2006 a)

U (2/1/2006 a)

(0.0858896 (0.0782209 0.0628834)/(4 0.0628834)/(5 3) 3)

0.0230061 0.00766871 0.0674847 U (6/1/2006 a) 0.0628834 U (2/1/2006 a) (0.0674847 - 0.0628834)/(6 - 3) 0.00153374 0.0421779 U (9/1/2006 a) 0.0628834 U (2/1/2006 a) (0.0421779 - 0.0628834)/(7 - 3) -0.00517638 0.0559816 U (12/1/2006 a) 0.0628834 U (2/1/2006 a) (0.0559816 - 0.0628834)/(8 - 3) -0.00138037 0.0521472 U (6/6/2007 a) 0.0628834 U (2/1/2006 a) (0.0521472 - 0.0628834)/(9 - 3) -0.00178937 0.0782209 U (4/1/2006 a) 0.0858896 U (3/1/2006 a) (0.0782209 - 0.0858896)/(5 - 4) -0.00766871 0.0674847 U (6/1/2006 a) 0.0858896 U (3/1/2006 a) (0.0674847 - 0.0858896)/(6 - 4) -0.00920245 0.0421779 U (9/1/2006 a) 0.0858896 U (3/1/2006 a) (0.0421779 - 0.0858896)/(7 - 4) -0.0145706 0.0559816 U (12/1/2006 a) 0.0858896 U (3/1/2006 a) (0.0559816 - 0.0858896)/(8 - 4) -0.00747699 0.0521472 U (6/6/2007 a) 0.0858896 U (3/1/2006 a) (0.0521472 - 0.0858896)/(9- 4) -0.00674847 0.0674847 U (6/1/2006 a) 0.0782209 U (4/1/2006 a) (0.0674847 - 0.0782209)/(6 - 5) -0.0107362 0.0421779 U (9/1/2006 a) 0.0782209 U (4/1/2006 a) (0.0421779 - 0.0782209)/(7 - 5) -0.0180215 0.0559816 U (12/1/2006 a) 0.0782209 U (4/1/2006 a) (0.0559816 - 0.0782209)/(8 - 5) -0.00741309 0.0521472 U (6/6/2007 a) 0.0782209 U (4/1/2006 a) (0.0521472 - 0.0782209)/(9 - 5) -0.00651841 0.0421779 U (9/1/2006 a) 0.0674847 U (6/1/2006 a) (0.0421779 - 0.0674847)/(7 - 6) -0.0253067 0.0559816 U (12/1/2006 a) 0.0674847 U (6/1/2006 a) (0.0559816 - 0.0674847)/(8 - 6) -0.00575153 0.0521472 U (6/6/2007 a) 0.0674847 U (6/1/2006 a) (0.0521472 - 0.0674847)/(9 - 6) -0.00511247 0.0559816 U (12/1/2006 a) 0.0421779 U (9/1/2006 a) (0.0559816 - 0.0421779)/(8 - 7) 0.0138037 0.0521472 U (6/6/2007 a) 0.0421779 U (9/1/2006 a) (0.0521472 - 0.0421779)/(9 - 7) 0.00498466 0.0521472 U (6/6/2007 a) 0.0559816 U (12/1/2006 a) (0.0521472 - 0.0559816)/(9 - 8) -0.00383436 Number of Q values = 36 Page 1

rOrdered Q Values n Q 1 -0.047546 2 -0.0274156 3 -0.0253067 4 -0.0180215 5 -0.0145706 6 -0.0125895 7 -0.0107362 8 -0.0106084 9 -0.010046 10 -0.00987347 11 -0.00920245 12 -0.00881902 13 -0.00819594 14 -0.00766871 15 -0.00747699 16 -0.00741309 17 -0.00728528 18 -0.00674847 19 -0.00651841 20 -0.00575153 21 -0.00559816 22 -0.00517638 23 -0.00511247 24 -0.00383436

. 25 26 27

-0.0025745

-0.00236452

-0.00178937 28 -0.00138037 29 -0.000671012 30 0.00153374 31 0.00268405 32 0.00498466 33 0.00766871 34 0.00786043 35 0.0138037 36 0.0230061 Sen's Estimator (Median Q) is -0.00663344 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=O E=0 Page 2

. a=

F=01656 b = 4536 c = 144 Group Variance = 92 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 15.7769 M1 = (36 - 15.7769)/2.0 = 10.1116 M2 = (36 + 15.7769)/2.0 + 1 = 26.8884 Lower limit is -0.00987347 = Q(10)

Upper limit is -0.00178937 = Q(27)

-0.00178937 < 0 indicating a downward trend in data.

Page 3

TEDE Time-Series Graph of MW-102S 0.04 C

Z_

0.03 E

2 0

0.02 C.)

00 0.01 CT

0. (.0 LA CD (0 0 0 oo) oo 0C0 00 0(N 0 (N 00 0 C. N 0D 0 0 C1 I-ample Date Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-102S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/1/2006 a) 0.0467791 U (12/1/2005 a) (0 - 0.0467791)/(2 - 1) -0.0467791 0.0141488 U (2/1/2006 a) 0.0467791 U (12/1/2005 a) (0.0141488 - 0.0467791)/(3 - 1) -0.0163152 ND<0 U (3/1/2006 a) 0.0467791 U (12/1/2005 a) (0- 0.0467791)/(4 - 1) -0.015593 ND<0 U (4/1/2006 a) 0.0467791 U (12/1/2005 a) (0 - 0.0467791 )/(5 - 1) -0.0116948 ND<0 U (6/1/2006 a) 0.0467791 U (12/1/2005 a) (0- 0.0467791)/(6 - 1) -0.00935583 ND<0 U (9/1/2006 a) 0.0467791 U (12/1/2005 a) (0 - 0.0467791 )/(7 - 1) -0.00779652 ND<0 U (12/1/2006 a) 0.0467791 U (12/1/2005 a) (0- 0.0467791)/(8 - 1) -0.00668273 ND<0 U (3/5/2007 a) 0.0467791 U (12/1/2005 a) (0 - 0.0467791)/(9 - 1) -0.00584739 ND<0 U (6/6/2007 a) 0.0467791 U (12/1/2005 a) (0 - 0.0467791)/(10 - 1) -0.00519768 0.0141488 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0.0141488 - 0)/(3 - 2) 0.0141488 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 ND<0 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(8 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0- 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) 0.0141488 U (2/1/2006 a) (0 - 0.0141488)/(4 - 3) -0.0141488 ND<0 U (4/1/2006 a) 0.0141488 U (2/1/2006 a) (0 - 0.0141488)/(5 - 3) -0.00707439 ND<0 U (6/1/2006 a) 0.0141488 U (2/1/2006 a) (0 - 0.0141488)/(6 - 3) -0.00471626 ND<0 U (9/1/2006 a) 0.0141488 U (2/1/2006 a) (0 - 0.0141488)/(7 - 3) -0.00353719 ND<0 U (12/1/2006 a) 0.0141488 U (2/1/2006 a) (0 - 0.0141488)/(8 - 3) -0.00282975 ND<0 U (3/5/2007 a) 0.0141488 U (2/1/2006 a) (0 - 0.0141488)/(9 - 3) -0.00235813 ND<0 U (6/6/2007 a) 0.0141488 U (2/1/2006 a) (0 - 0.0141488)/(10 - 3) -0.00202125 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<O U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4) 0 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 ND<0 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5) 0 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(10 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(8 - 6) 0 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(10 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<O U (6/6/2007 a) ND<O U (9/1/2006 a) (0- 0)/(10- 7) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<0 U (6/6/2007 a) N D<0 U (12/1/2006 a) (0- 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) 0 Number of Q values = 45 Ordered 0 Values n Q 1 -0.0467791 2 -0.0163152 3 -0.015593 4 -0.0141488 5 -0.0116948 6 -0.00935583 7 -0.00779652 8 -0.00707439 9 -0.00668273 10 -0.00584739 11 -0.00519768 12 -0.00471626 13 -0.00353719 14 -0.00282975

. 15 16 17

-0.00235813

-0.00202125 0

18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0 42 0

. 43 0 44 0 45 0.0141488 Page 2

. Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 8 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A= 1176 B=0 C = 336 D=0 E = 56 F=0 a = 2250 b = 6480

. c= 180 Group Variance = 59.6667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 12.7055 M1 = (45 - 12.7055)/2.0 = 16.1472 M2 = (45 + 12.7055)/2.0 + 1 = 29.8528 Lower limit is -0.00202125 = Q(16)

Upper limit is 0 = Q(30)

-0.00202125 < 0 < 0 indicating no trend in data.

Page 3

TEDE Time-Series Graph of MW-103A 0.4 E

2 0.3 0

o Cu C:

0 0.2L ! "

0.1-

I I II 0

C, 0 N 00

o C - o* o Np Dat Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-103A Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0444785 U (1/1/2006 a) 0.551326 U (12/1/2005 a) (0.0444785 - 0.551326)/(2 - 1) -0.506848 0.314559 U (2/1/2006 a) 0.551326 U (12/1/2005 a) (0.314559 - 0.551326)/(3 - 1) -0.118384 0.024885 U (3/1/2006 a) 0.551326 U (12/1/2005 a) (0.024885 - 0.551326)/(4 - 1) -0.17548 0.0247699 U (4/1/2006 a) 0.551326 U (12/1/2005 a) (0.0247699 - 0.551326)/(5 - 1) -0.131639 0.0312117 U (6/1/2006 a) 0.551326 U (12/1/2005 a) (0.0312117 - 0.551326)/(6- 1) -0.104023 0.034931 U (9/1/2006 a) .0.551326 U (12/1/2005 a) (0.034931 - 0.551326)/(7 - 1) -0.0860659

0. 156341 U (12/1/2006 a) 0.551326 U (12/1/2005 a) (0.156341 - 0.551326)/(8 - 1) -0.0564265 0.0120399 U (3/5/2007 a) 0.551326 U (12/1/2005 a) (0.0120399 - 0.551326)/(9 - 1) -0.0674108 0.0452454 U (6/6/2007 a) 0.551326 U (12/1/2005 a) (0.0452454 - 0.551326)/(10 - 1) -0.0562312 0.314559 U (2/1/2006 a) 0.0444785 U (1/1/2006 a) (0.314559 - 0.0444785)/(3 - 2) 0.270081 0.024885 U (3/1/2006 a) 0.0444785 U (1/1/2006 a) (0.024885 - 0.0444785)/(4 - 2) -0.00979678 0.0247699 U (4/1/2006 a) 0.0444785 U (1/1/2006 a) (0.0247699 - 0.0444785)/(5 - 2) -0.00656953 0.0312117 U (6/1/2006 a) 0.0444785 U (1/1/2006 a) (0.0312117 - 0.0444785)/(6 - 2) -0.00331672 0.034931 U (9/1/2006 a) 0.0444785 U (1/1/2006 a) (0.034931 - 0.0444785)/(7 - 2) -0.00190951 0.156341 U (12/1/2006 a) 0.0444785 U (1/1/2006 a) (0.156341 - 0.0444785)/(8 - 2) 0.0186437 0.0120399 U (3/5/2007 a) 0.0444785 U (1/1/2006 a) (0.0120399 - 0.0444785)/(9 - 2) -0.00463409 0.0452454 U (6/6/2007 a) 0.0444785 U (1/1/2006 a) (0.0452454 - 0.0444785)/(10 - 2) 9.58589e-005 0.024885 U (3/1/2006 a) 0.314559 U (2/1/2006 a) (0.024885 - 0.314559)/(4 - 3) -0.289674 0.0247699 U (4/1/2006 a) 0.314559 U (2/1/2006 a) (0.0247699 - 0.314559)/(5 - 3) -0.144895 0.0312117 U (6/1/2006 a) 0.314559 U (2/1/2006 a) (0.0312117 - 0.314559)/(6- 3) -0.0944492 0.034931 U (9/1/2006 a) 0.314559 U (2/1/2006 a) (0.034931 - 0.314559)/(7 - 3) -0.0699071 0.156341 U (12/1/2006 a) 0.314559 U (2/1/2006 a) (0.156341 - 0.314559)/(8 - 3) -0.0316437 0.0120399 U (3/5/2007 a) 0.314559 U (2/1/2006 a) (0.0120399 - 0.314559)/(9 - 3) -0.0504199 0.0452454 U (6/6/2007 a) 0.314559 U (2/1/2006 a) (0.0452454 - 0.314559)/(10 - 3) -0.0384734 0.0247699 U (4/1/2006 a) 0.024885 U (3/1/2006 a) (0.0247699 - 0.024885)/(5 - 4) -0.00011503 0.0312117 U (6/1/2006 a) 0.024885 U (3/1/2006 a) (0.0312117 - 0.024885)/(6 - 4) 0.00316334 0.034931 U (9/1/2006 a) 0.024885 U (3/1/2006 a) (0.034931 - 0.024885)/(7 - 4) 0.00334867 0.156341 U (12/1/2006 a) 0.024885 U (3/1/2006 a) (0.156341 - 0.024885)/(8 - 4) 0.032864 0.0120399 U (3/5/2007 a) 0.024885 U (3/1/2006 a) (0.0120399 - 0.024885)/(9- 4) -0.00256902 0.0452454 U (6/6/2007 a) 0.024885 U (3/1/2006 a) (0.0452454 - 0.024885)/(10- 4) 0.0033934 0.0312117 U (6/1/2006 a) 0.0247699 U (4/1/2006 a) (0.0312117 - 0.0247699)/(6 - 5) 0.00644172 0.034931 U (9/1/2006 a) 0.0247699 U (4/1/2006 a) (0.034931 - 0.0247699)/(7 - 5) 0.00508052 0.156341 U (12/1/2006 a) 0.0247699 U (4/1/2006 a) (0.156341 - 0.0247699)/(8 - 5) 0.043857 0.0120399 U (3/5/2007 a) 0.0247699 U (4/1/2006 a) (0.0120399 - 0.0247699)/(9 - 5) -0.00318252 0.0452454 U (6/6/2007 a) 0.0247699 U (4/1/2006 a) (0.0452454 - 0.0247699)/(10 - 5) 0.00409509 0.034931 U (9/1/2006 a) 0.0312117 U (6/1/2006 a) (0.034931 - 0.0312117)/(7 - 6) 0.00371933 0.156341 U (12/1/2006 a) 0.0312117 U (6/1/2006 a) (0.156341 - 0.0312117)/(8 - 6) 0.0625646 0.0120399 U (3/5/2007 a) 0.0312117 U (6/1/2006 a) (0.0120399- 0.0312117)/(9 -6) -0.00639059 0.0452454 U (6/6/2007 a) 0.0312117 U (6/1/2006 a) (0.0452454 - 0.0312117)/(10 - 6) 0.00350844 0.156341 U (12/1/2006 a) 0.034931 U (9/1/2006 a) (0.156341 - 0.034931)/(8 - 7) 0.12141 0.0120399 U (3/5/2007 a) 0.034931 U (9/1/2006 a) (0.0120399 - 0.034931)/(9 - 7) -0.0114456 Page 1

0.0452454 U (6/6/2007 a) 0.034931 U (9/1/2006 a) (0.0452454 - 0.034931)/(10 - 7) 0.00343814 0.0120399 U (3/5/2007 a) 0.156341 U (12/1/2006 a) (0.0120399 - 0.156341)/(9- 8) -0.144301 0.0452454 U (6/6/2007 a) 0.156341 U (12/1/2006 a) (0.0452454 - 0.156341)/(10 - 8) -0.0555477 0.0452454 U (6/6/2007 a) 0.0120399 U (3/5/2007 a) (0.0452454 - 0.0120399)/(10 - 9) 0.0332055 Number of 0 values = 45 Ordered 0 Values n Q

-0.506848 2 -0.289674 3 -0.17548 4 -0.144895 5 -0.144301 6 -0.131639 7 -0.118384 8 -0;104023 9 -0.0944492 10 -0.0860659 11 -0.0699071 12 -0.0674108 13 -0.0564265 14 -0.0562312 15 -0.0555477 16 -0.0504199 17 -0.0384734 18 -0.0316437 19 -0.0114456 20 -0.00979678 21 -0.00656953 22 -0.00639059 23 -0.00463409 24 -0.00331672 25 -0.00318252 26 -0.00256902 27 -0.00190951 28 -0.00011503 29 9.58589e-005 30 '0.00316334 31 0.00334867 32 0.0033934 33 0.00343814 34 0.00350844 35 0.00371933 36 0.00409509 37 0.00508052 38 0.00644172 39 0.0186437 40 0.032864 41 0.0332055 42 0.043857 43 0.0625646 44 0.12141 45 0.270081 Page 2

Sen's Estimator (Median Q) is -0.00463409 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

.M1 C = 18.39

= (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0564265 = Q(13)

Upper limit is 0.00343814 = Q(33)

-0.0564265 < 0 < 0.00343814 indicating no trend in data.

Page 3

TEDE 0.3 Time-Series Graph of MW-103B 0.25 E

0 CD o 0.15 0

0.1 0.05 (0 C 0 0 (0 0 0 o

o o 0, o0 0 0*

0, 0 Cte 0 0 C> C.- Ct) C,) C Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-103B Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.165261 U (1/1/2006 a) 0.20092 U (12/1/2005 a) (0.165261 - 0.20092)/(2 - 1) -0.0356595 0.121933 U (2/1/2006 a) 0.20092 U (12/1/2005 a) (0.121933 - 0.20092)/(3 - 1) -0.0394939 0.104294 U (3/1/2006 a) 0.20092 U (12/1/2005 a) (0.104294 - 0.20092)/(4 - 1) -0.0322086 0.120782 U (4/1/2006 a) 0.20092 U (12/1/2005 a) (0.120782 - 0.20092)/(5 - 1) -0.0200345 0.105828 U (6/1/2006 a) 0.20092 U (12/1/2005 a) (0.105828 - 0.20092)/(6 - 1) -0.0190184 0.107745 U (9/1/2006 a) 0.20092 U (12/1/2005 a) (0.107745 - 0.20092)/(7 - 1) -0.0155291 0.105828 U (12/1/2006 a) 0.20092 U (12/1/2005 a) (0.105828 - 0.20092)/(8 - 1) -0.0135846 0.0751534 U (3/5/2007 a) 0.20092 U (12/1/2005 a) (0.0751534 - 0.20092)/(9 - 1) -0.0157209 0.0540644 U (6/6/2007 a) 0.20092 U (12/1/2005 a) (0.0540644 - 0.20092)/(10 - 1) -0.0163173 0.121933 U (2/1/2006 a) 0.165261 U (1/1/2006 a) (0.121933 - 0.165261)/(3 - 2) -0.0433282 0.104294 U (3/1/2006 a) 0.165261 U (1/1/2006 a) (0.104294 - 0.165261)/(4 - 2) -0.0304831 0.120782 U (4/1/2006 a) 0.165261 U (1/1/2006 a) (0.120782 - 0.165261)/(5 - 2) -0.0148262 0.105828 U (6/1/2006 a) 0.165261 U (1/1/2006 a) (0.105828 - 0.165261)/(6 - 2) -0.0148581 0.107745 U (9/1/2006 a) 0.165261 U (1/1/2006 a) (0.107745 - 0.165261)/(7- 2) -0.0115031

0. 105828 U (12/1/2006 a) 0.165261 U (1/1/2006 a) (0.105828 - 0.165261)/(8 - 2) -0.00990542 0.0751534 U (3/5/2007 a) 0.165261 U (1/1/2006 a) (0.0751534 - 0.165261)/(9 - 2) -0.0128725 0.0540644 U (6/6/2007 a) 0.165261 U (1/1/2006 a) (0.0540644 - 0.165261)/(10 - 2) -0.0138995 0.104294 U (3/1/2006 a) 0.121933 U (2/1/2006 a) (0.104294 - 0.121933)/(4 - 3) -0.017638 0.120782 U (4/1/2006 a) 0.121933 U (2/1/2006 a) (0.120782 - 0.121933)/(5 - 3) -0.000575153 0.105828 U (6/1/2006 a) 0.121933 U (2/1/2006 a) (0.105828 - 0.121933)/(6 - 3) -0.0053681 0.107745 U (9/1/2006 a) 0.121933 U (2/1/2006 a) (0.107745 - 0.121933)/(7 - 3) -0.00354678

0. 105828 U (12/1/2006 a) 0.121933 U (2/1/2006 a) (0.105828 - 0.121933)/(8 - 3) -0.00322086 0.0751534 U (3/5/2007 a) 0.121933 U (2/1/2006 a) (0.0751534 - 0.121933)/(9 - 3) -0.00779652 0.0540644 U (6/6/2007 a) 0.121933 U (2/1/2006 a) (0.0540644 - 0.121933)/(10 - 3) -0.00969544 0.120782 U (4/1/2006 a) 0.104294 U (3/1/2006 a) (0.120782 - 0.104294)/(5- 4) 0.0164877 0.105828 U (6/1/2006 a) 0.104294 U (3/1/2006 a) (0.105828 - 0.104294)/(6 - 4) 0.000766871 0.107745 U (9/1/2006 a) 0.104294 U (3/1/2006 a) (0.107745 - 0.104294)/(7 - 4) 0.00115031 0.105828 U (12/1/2006 a) 0.104294 U (3/1/2006 a) (0.105828 - 0.104294)/(8- 4) 0.000383436 0.0751534 U (3/5/2007 a) 0.104294 U (3/1/2006 a) (0.0751534 - 0.104294)/(9 - 4) -0.00582822 0.0540644 U (6/6/2007 a) 0.104294 U (3/1/2006 a) (0.0540644 - 0.104294)/(10 - 4) -0.00837168 0.105828 U (6/1/2006 a) 0.120782 U (4/1/2006 a) (0.105828 - 0.120782)/(6 - 5) -0.014954 0.107745 U (9/1/2006 a) 0.120782 U (4/1/2006 a) (0.107745 - 0.120782)/(7 - 5) -0.0065184 0.105828 U (12/1/2006 a) 0.120782 U (4/1/2006 a) (0.105828 - 0.120782)/(8- 5) -0.00498466 0.0751534 U (3/5/2007 a) 0.120782 U (4/1/2006 a) (0.0751534 - 0.120782)/(9 - 5) -0.0114072 0.0540644 U (6/6/2007 a) 0.120782 U (4/1/2006 a) (0.0540644 - 0.120782)/(10- 5) -0.0133436 0.107745 U (9/1/2006 a) 0.105828 U (6/1/2006 a) (0.107745 - 0.105828)/(7 - 6) 0.00191718 0.105828 U (12/1/2006 a) 0.105828 U (6/1/2006 a) (0.105828 - 0.105828)/(8 - 6) 0 0.0751534 U (3/5/2007 a) 0.105828 U (6/1/2006 a) (0.0751534- 0.105828)/(9- 6) -0.0102249 -

0.0540644 U (6/6/2007 a) 0.105828 U (6/1/2006 a) (0.0540644 - 0.105828)/(10 - 6) -0.012941 0.107745 U (9/1/2006 a) 0.105828 U (12/1/2006 a) (0.105828 - 0.107745)/(8 - 7) -0.00191718 0.0751534 U (3/5/2007 a) 0.107745 U (9/1/2006 a) (0.0751534 - 0.107745)/(9 - 7) -0.016296 Page 1

0.0540644 U (6/6/2007 a) 0.107745 U (9/1/2006 a) (0.0540644 - 0.107745)/(10 - 7) -0.0178937 0.0751534 U (3/5/2007 a) 0.105828 U (12/1/2006 a) (0.0751534 - 0.105828)/(9 - 8) -0.0306748 0.0540644 U (6/6/2007 a) 0.105828 U (12/1/2006 a) (0.0540644 - 0.105828)/(10 - 8) -0.0258819 0.0540644 U (6/6/2007 a) 0.0751534 U (3/5/2007 a) (0.0540644 - 0.0751534)/(10 - 9) -0.021089 Number of Q values = 45 Ordered Q Values n Q 1 -0.0433282 2 -0.0394939 3 -0.0356595 4 -0.0322086 5 -0.0306748 6 -0.0304831 7 -0.0258819 8 -0.021089 9 -0.0200345 10 -0.0190184 11 -0.0178937 12 -0.017638 13 -0.0163173 14 -0.016296

. 15 16 17

-0.0157209

-0.0155291

-0.014954 18 -0.0148581 19 -0.0148262 20 -0.0138995 21 -0.0135846 22 -0.0133436 23 -0.012941 24 -0.0128725 25 -0.0115031 26 -0.0114072 27 -0.0102249 28 -0.00990542 29 -0.00969544 30 -0.00837168 31 -0.00779652 32 -0.0065184 33 -0.00582822 34 -0.0053681 35 -0.00498466 36 -0.00354678 37 -0.00322086-38 -0.00191718 39 -0.000575153 40 0 41 0.000383436 42 0.000766871 43 0.00115031 44 0.00191718 45 0.0164877 Page 2

O Sen's Estimator (Median Q) is -0.012941 Tied Group Value Members 1 0.105828 2 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=118 B=0 C=0 D=0 E=2 F=0 a = 2250 b = 6480 c = 180

Group Variance = 124 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 18.3163 M1 = (45 - 18.3163)/2.0 = 13.3418 M2 = (45 + 18.3163)/2.0 + 1 = 32.6582 Lower limit is -0.0163173 = Q(13)

Upper limit is -0.00582822 = 0(33)

-0.00582822 < 0 indicating a downward trend in data.

Page 3

TEDE Time-Series Graph of MWR-103D 0.4 0.3 E

2 0 0.2 C.)

c U0 0.1 CD 0.

In CD C 00 C~( CD 0 00N CI D I CI C C, O CD

-- 0(0

' L-U)

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MWR-103D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a 0.027684 U (1/1/2006 a) 0.0246933 U (12/1/2005 a) (0.027684 - 0.0246933)/(2 - 1) 0.0029908 ND<0 U (2/1/2006 a) 0.0246933 U (12/1/2005 a) (0 - 0.0246933)/(3 - 1) -0.0123466 0.0353528 U (3/1/2006 a) 0.0246933 U (12/1/2005 a) (0.0353528 - 0.0246933)/(4 - 1) 0.00355317 0.0586656 U (4/1/2006 a) 0.0246933 U (12/1/2005 a) (0.0586656 - 0.0246933)/(5 - 1) 0.0084931 0.444373 U (6/1/2006 a) 0.0246933 U (12/1/2005 a) (0.444373 - 0.0246933)/(6 - 1) 0.0839359 0.476514 U (9/1/2006 a) 0.0246933 U (12/1/2005 a) (0.476514 - 0.0246933)/(7 - 1) 0.0753035 0.231263 U (10/31/2006 a) 0.0246933 U (12/1/2005 a) (0.231263 - 0.0246933)/(8 - 1) 0.02951 0.24175 U (12/1/2006 a) 0.0246933 U (12/1/2005 a) (0.24175 - 0.0246933)/(9 - 1) 0.0271321 0.0169862 U (3/5/2007 a) 0.0246933 U (12/1/2005 a) (0.0169862 - 0.0246933)/(10 - 1) -0.00085634 0.0166411 U (6/6/2007 a) 0.0246933 U (12/1/2005 a) (0.0166411 - 0.0246933)/(11 0.000805215 ND<0 U (2/1/2006 a) 0.027684 U (1/1/2006 a) (0 - 0.027684)/(3 - 2) -0.027684 0.0353528 U (3/1/2006 a) 0.027684 U (1/1/2006 a) (0.0353528 - 0.027684)/(4 - 2) 0.00383436 0.0586656 U (4/1/2006 a) 0.027684 U (1/1/2006 a) (0.0586656 - 0.027684)/(5 - 2) 0.0103272 0.444373 U (6/1/2006 a) 0.027684 U (1/1/2006 a) (0.444373 - 0.027684)/(6 - 2) 0.104172 0.476514 U (9/1/2006 a) 0.027684 U (1/1/2006 a) (0.476514 - 0.027684)/(7 - 2) 0.0897661 0.231263 U (10/31/2006 a) 0.027684 U (1/1/2006 a) (0.231263 - 0.027684)/(8 - 2) 0.0339298 O 0.24175 U(12/1/2006 a) 0.027684 U (1/1/2006 a) (0.24175 - 0.027684)/(9 - 2) 0.0305808 0.0169862 U (3/5/2007 a) 0.027684 U (1/1/2006 a) (0.0169862 - 0.027684)/(10 - 2) -0.00133723 0.0166411 U (6/6/2007 a) 0.027684 U (1/1/2006 a) (0.0166411 - 0.027684)/(11 - 2) -0.00122699 0.0353528 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0.0353528 - 0)/(4 - 3) 0.0353528 0.0586656 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0.0586656 - 0)/(5 - 3) 0.0293328 0.444373 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0.444373 - 0)/(6 - 3) 0.148124 0.476514 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0.476514 - 0)/(7 - 3) 0.119129 0.231263 U (10/31/2006 a) ND<0 U (2/1/2006 a) (0.231263 - 0)/(8 - 3) 0.0462526 0.24175 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0.24175 - 0)/(9 - 3) 0.0402916 0.0169862 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0.0169862 - 0)/(10- 3) 0.0024266 0.0166411 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0.0166411 - 0)/(11 - 3) 0.00208014 0.0586656 U (4/1/2006 a) 0.0353528 U (3/1/2006 a) (0.0586656 - 0.0353528)/(5 - 4) 0.0233129 0.444373 U (6/1/2006 a) 0.0353528 U (3/1/2006 a) (0.444373 - 0.0353528)/(6 - 4) 0.20451 0.476514 U (9/1/2006 a) 0.0353528 U (3/1/2006 a) (0.476514 - 0.0353528)/(7 - 4) 0.147054 0.231263 U (10/31/2006 a) 0.0353528 U (3/1/2006 a) (0.231263 - 0.0353528)/(8 - 4) 0.0489776 0.24175 U (12/1/2006 a) 0.0353528 U (3/1/2006 a) (0.24175 - 0.0353528)/(9 - 4) 0.0412794 0.0169862 U (3/5/2007 a) 0.0353528 U (3/1/2006 a) (0.0169862 - 0.0353528)/(10 - 4) -0.00306109 0.0166411 U (6/6/2007 a) 0.0353528 U (3/1/2006 a) (0.0166411 - 0.0353528)/(11 - 4) -0.00267309 0.444373 U (6/1/2006 a) 0.0586656 U (4/1/2006 a) (0.444373 - 0.0586656)/(6 - 5) 0.385707 0.476514 U (9/1/2006 a) 0.0586656 U (4/1/2006 a) (0.476514 - 0.0586656)/(7 - 5) 0.208924 0.231263 U (10/31/2006 a) 0.0586656 U (4/1/2006 a) (0.231263 - 0.0586656)/(8 - 5) 0.0575324 0.24175 U (12/1/2006 a) 0.0586656 U (4/1/2006 a) (0.24175 - 0.0586656)/(9 - 5) 0.0457711 0.0169862 U (3/5/2007 a) 0.0586656 U (4/1/2006 a) (0.0169862 - 0.0586656)/(10 - 5) -0.00833589 0.0166411 U (6/6/2007 a) 0.0586656 U (4/1/2006 a) (0.0166411 - 0.0586656)/(11 - 5) -0.00700409 0.476514 U (9/1/2006 a) 0.444373 U (6/1/2006 a) (0.476514 - 0.444373)/(7 - 6) 0.0321417 0.231263 U (10/31/2006 a) 0.444373 U (6/1/2006 a) (0.231263 - 0.444373)/(8 - 6) -0.106555 Page 1

.0.24175 0.0169862 U (3/5/2007a)a)

U (12/1/2006 0.0166411 U (6/6/2007 a) 0.444373 U (6/1/2006 a) 0.444373 U (6/1/2006 a) 0.444373 U (6/1/2006 a)

(0.24175 - 0.444373)/(9 - 6) -0.067541 (0.0169862 - 0.444373)/(10 - 6) -0.106847 (0.0166411 - 0.444373)/(11 - 6) -0.0855463 0.231263 U (10/31/2006 a) 0.476514 U (9/1/2006 a) (0.231263 - 0.476514)/(8 - 7) -0.245251 0.24175 U (12/1/2006 a) 0.476514 U (9/1/2006 a) (0.24175 - 0.476514)/(9 - 7) -0.117382 0.0169862 U (3/5/2007 a) 0.476514 U (9/1/2006 a) (0.0169862 - 0.476514)/(10 - 7) -0.153176 0.0166411 U (6/6/2007 a) 0.476514 U (9/1/2006 a) (0.0166411 - 0.476514)/(11 - 7) -0.114968 0.24175 U (12/1/2006 a) 0.231263 U (10/31/2006 a) (0.24175- 0.231263)/(9 - 8) 0.0104869 0.0169862 U (3/5/2007 a) 0.231263 U (10/31/2006 a) (0.0169862- 0.231263)/(10 - 8) -0.107138 0.0166411 U (6/6/2007 a) 0.231263 U (10/31/2006 a) (0.0166411 - 0.231263)/(11 - 8) -0.0715406 0.0169862 U (3/5/2007 a) 0.24175 U (12/1/2006 a) (0.0169862 - 0.24175)/(10 - 9) -0.224764 0.0166411 U (6/6/2007 a) 0.24175 U (12/1/2006 a) (0.0166411 - 0.24175)/(11 - 9) -0.112554 0.0166411 U (6/6/2007 a) 0.0169862 U (3/5/2007 a) (0.0166411 - 0.0169862)/(11 0.000345092 Number of 0 values = 55 Ordered Q Values n Q 1 -0.245251 2 -0.224764 3 -0.153176 4 -0.117382 O56 6

-0.114968

-0.112554 7 -0.107138 8 -0.106847 9 -0.106555 10 -0.0855463 11 -0.0715406 12 -0.067541 13 -0.027684 14 -0.0123466 15 -0.00833589 16 -0.00700409 17 -0.00306109 18 -0.00267309 19 -0.00133723 20 -0.00122699 21 -0.00085634 22 -0.000805215 23 -0.000345092 24 0.00208014 25 0.0024266 26 0.0029908 27 0.00355317 28 0.00383436 29 0.0084931 30 0.0103272 31 0.0104869 32 0.0233129 33 0.0271321 34 0.0293328 Page 2

. 36 35 37 0.0305808 0.02951 0.0321417 38 0.0339298 39 0.0353528 40 0.0402916 41 0.0412794 42 0.0457711 43 0.0462526 44 0.0489776 45 0.0575324 46 0.0753035 47 0.0839359 48 0.0897661 49 0.104172 50 0.119129 51 0.147054 52 0.148124 53 0.20451 54 0.208924 55 0.385707 Sen's Estimator (Median Q) is 0.00383436 Time Period Observations 12/1/2005 1 1/1/2006 1

. 2/1/2006 3/1/2006 4/1/2006 1

1 1

6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.00306109 = Q(17)

Upper limit is 0.0353528 = 0(39)

-0.00306109 < 0 < 0.0353528 indicating no trend in data.

Page 3

TEDE E

5D 0

Cu (0 co to (0 to 0D 0-C) o C) a 0 0 C) oD 0D Q'. CD 0 C'

CO .0 C) Q C) 0 LO Q 04 Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MWR-103S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.437556 U (1/1 /2006 a) 0.857646 U (12/1/2005 a) (0.437556 - 0.857646)/(2 - 1) -0.42009 0.027684 U (2/1/2006 a) 0.857646 U (12/1/2005 a) (0.027684 - 0.857646)/(3 - 1) -0.414981 0.491429 U (3/1/2006 a) 0.857646 U (12/1/2005 a) (0.491429 - 0.857646)/(4 - 1) -0.122072 0.387856 U (4/1/2006 a) 0.857646 U (12/1/2005 a) (0.387856 - 0.857646)/(5 - 1) -0.117447 0.384365 U (6/1/2006 a) 0.857646 U (12/1/2005 a) (0.384365 - 0.857646)/(6 - 1) -0.0946561 1.9361 U (9/1/2006 a) 0.857646 U (12/1/2005 a) (1.9361 - 0.857646)/(7 - 1) 0.179742 2.15794 U (10/31/2006 a) 0.857646 U (12/1/2005 a) (2.15794 - 0.857646)/(8 - 1) 0.185757 1.51465 U (12/1/2006 a) 0.857646 U (12/1/2005 a) (1.51465 - 0.857646)/(9 - 1) 0.0821252 ND<0 U (3/5/2007 a) 0.857646 U (12/1/2005 a) (0 - 0.857646)/(10 - 1) -0.095294 0.0479294 U (6/6/2007 a) 0.857646 U (12/1/2005 a) (0.0479294 - 0.857646)/(11 - 1) -0.0809716 0.027684 U (2/1/2006 a) 0.437556 U (1/1/2006 a) (0.027684 - 0.437556)/(3 - 2) -0.409872 0.491429 U (3/1/2006 a) 0.437556 U (1/1/2006 a) (0.491429 - 0.437556)/(4 - 2) 0.0269367 0.387856 U (4/1/2006 a) 0.437556 U (1/1/2006 a) (0.387856 - 0.437556)/(5 - 2) -0.0165665 0.384365 U (6/1/2006 a) 0.437556 U (1/1/2006 a) (0.384365 - 0.437556)/(6 - 2) -0.0132976 1.9361 U (9/1/2006 a) 0.437556 U (1/1/2006 a) (1.9361 - 0.437556)/(7 - 2) 0.299709

. 2.15794 U (10/31/2006 a) 1.51465 U (12/1/2006 a)

ND<0 U (3/5/2007 a) 0.437556 0.437556 0.437556 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(2.15794 - 0.437556)/(8 - 2)

(1.51465 - 0.437556)/(9 - 2)

(0 - 0.437556)/(10 - 2) 0.286731 0.15387

-0.0546945 0.0479294 U (6/6/2007 a) 0.437556 U (1/1/2006 a) (0.0479294 - 0.437556)/(11 - 2) -0.0432918 0.491429 U (3/1/2006 a) 0.027684 U (2/1/2006 a) (0.491429 - 0.027684)/(4 - 3) 0.463745 0.387856 U (4/1/2006 a) 0.027684 U (2/1/2006 a) (0.387856 - 0.027684)/(5 - 3) 0.180086 0.384365 U (6/1/2006 a) 0.027684 U (2/1/2006 a) (0.384365 - 0.027684)/(6 - 3) 0.118894 1.9361 U (9/1/2006 a) 0.027684 U (2/1/2006 a) (1.9361 - 0.027684)/(7 - 3) 0.477104 2.15794 U (10/31/2006 a) 0.027684 U (2/1/2006 a) (2.15794 - 0.027684)/(8 - 3) 0.426052 1.51465 U (12/1/2006 a) 0.027684 U (2/1/2006 a) (1.51465 - 0.027684)/(9- 3) 0.247827 ND<0 U (3/5/2007 a) 0.027684 U (2/1/2006 a) (0 - 0.027684)/(10 - 3) -0.00395486 0.0479294 U (6/6/2007 a) 0.027684 U (2/1/2006 a) (0.0479294 - 0.027684)/(11 - 3) 0.00253067 0.387856 U (4/1/2006 a) 0.491429 U (3/1/2006 a) (0.387856 - 0.491429)/(5- 4) -0.103573 0.384365 U (6/1/2006 a) 0.491429 U (3/1/2006 a) (0.384365 - 0.491429)/(6 - 4) -0.053532 1.9361 U (9/1/2006 a) 0.491429 U (3/1/2006 a) (1.9361 - 0.491429)/(7- 4) 0.481557 2.15794 U (10/31/2006 a) 0.491429 U (3/1/2006 a) (2.15794 - 0.491429)/(8 - 4) 0.416629 1.51465 U (12/1/2006 a) 0.491429 U (3/1/2006 a) (1.51465 - 0.491429)/(9 - 4) 0.204644 ND<0 U (3/5/2007 a) 0.491429 U (3/1/2006 a) (0 - 0.491429)/(10- 4) -0.0819049 0.0479294 U (6/6/2007 a) 0.491429 U (3/1/2006 a) (0.0479294 - 0.491429)/(11 - 4) -0.0633571 0.384365 U (6/1/2006 a) 0.387856 U (4/1/2006 a) (0.384365 - 0.387856)/(6 - 5) -0.00349096 1.9361 U (9/1/2006 a) 0.387856 U (4/1/2006 a) (1.9361 - 0.387856)/(7 - 5) 0.774122 2.15794 U (10/31/2006 a) 0.387856 U (4/1/2006 a) (2.15794 - 0.387856)/(8 - 5) 0.590029 1.51465 U (12/1/2006 a) 0.387856 U (4/1/2006 a) (1.51465 - 0.387856)/(9 - 5) 0.281698 ND<0 U (3/5/2007 a) 0.387856 U (4/1/2006 a) (0 - 0.387856)/(10 - 5) -0.0775712 0.0479294 U (6/6/2007 a) 0.387856 U (4/1/2006 a) (0.0479294 - 0.387856)/(11 - 5) -0.0566545 1.9361 U (9/1/2006 a) 0.384365 U (6/1/2006 a) (1.9361 - 0.384365)/(7 - 6) 1.55173 2.15794 U (10/31/2006 a) 0.384365 U (6/1/2006 a) (2.15794 - 0.384365)/(8 - 6) 0.886789 Page 1

.1.51465 U (12/11/2006 ND<O U (3/5/2007 a) a) 0.0479294 U (6/6/2007 a) 0.384365 U (6/1/2006 a) 0.384365 U (6/1/2006 a) 0.384365 U (6/1/2006 a)

(1.51465 - 0.384365)/(9- 6)

(0- 0.384365)/(10- 6) 0.376761

-0.0960913 (0.0479294 - 0.384365)/(11 - 6) -0.0672872 2.15794 U (10/31/2006 a) 1.9361 U (9/1/2006 a) (2.15794 - 1..9361)/(8- 7) 0.221844 1.51465 U (12/1/2006 a) 1.9361 U (9/1/2006 a) (1.51465 - 1.9361)/(9- 7) -0.210726 ND<0 U (3/5/2007 a) 1.9361 U (9/1/2006 a) (0 - 1.9361)/(10 - 7) -0.645367 0.0479294 U (6/6/2007 a) 1.9361 U (9/1/2006 a) (0.0479294 - 1.9361)/(11 - 7) -0.472043 1.51465 U (12/1/2006 a) 2.15794 U (10/31/2006 a) (1.51465 - 2.15794)/(9- 8) -0.643296 ND<0 U (3/5/2007 a) 2.15794 U (10/31/2006 a) (0 - 2.15794)/(10 - 8) -1.07897 0.0479294 U (6/6/2007 a) 2.15794 U (10/31/2006 a) (0.0479294 - 2.15794)/(11 - 8) -0.703338 1.51465 U (12/1/2006 a) (0- 1.51465)/(10 - 9) -1.51465 ND<0 U (3/5/2007 a) 0.0479294 U (6/6/2007 a) 1.51465 U (12/1/2006 a) (0.0479294 - 1.51465)/(11 - 9) -0.733359 0.0479294 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0.0479294 - 0)/(11 - 10) 0.0479294 Number of 0 values = 55 Ordered Q Values n 0 1 -1.51465 2 -1.07897 3 -0.733359 4 -0.703338 O56 6

-0.645367

-0.643296 7 -0.472043 8 -0.42009 9 -0.414981 10 -0.409872 11 -0.210726 12 -0.122072 13 -0.117447 14 -0.103573 15 -0.0960913 16 -0.095294 17 -0.0946561 18 -0.0819049 19 -0.0809716 20' -0.0775712 21 -0.0672872 22 -0.0633571 23 -0.0566545 24 -0.0546945 25 -0.053532 26 -0.0432918 27 -0.0165665 28 -0.0132976 29 -0.00395486 30 -0.00349096

. 31 32 33 0.00253067 0.0269367 0.0479294 34 0.0821252 Page 2

. 36 35 37 0.15387 0.118894 0.179742 38 0.180086 39 0.185757 40 0.204644 41 0.221844 42 0.247827 43 0.281698 44 0.286731 45 0.299709 46 0.376761 47 0.416629 48 0.426052 49 0.463745 50 0.477104 51 0.481557 52 0.590029 53 0.774122 54 0.886789 55 1.55173 Sen's Estimator (Median Q) is -0.0132976 Time Period Observations 12/1/2005 1 1/1/2006 1

. 2/1/2006 3/1/2006 4/1/2006 1

1 1

6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.0946561 = Q(17)

Upper limit is 0.185757 = Q(39)

-0.0946561 < 0 < 0.185757 indicating no trend in data.

Page 3

TEDE

0. v Time-Series Graph of MWR-105D

=_

0. o,,~I f., I.*r

0. 0I..

0. .1~I.

0) u.

0. tI. I A fA V .'*./*1 L

u 0 0 CD 0Co 0 0..

C) 0 (0 C) 0 1.-

0 0 CN 0)

C) 0 0 04 N 04 04 0 0 C.- iz C, Ct) C--

co Sample Date Page 1

.Sen's Slope Analysis Parameter: TEDE Location: MWR-105D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.118098 U (1/1/2006 a) 0.227377 U (12/1/2005 a) (0.118098 - 0.227377)/(2 - 1) -0.109279 0.0797546 U (2/1/2006 a) 0.227377 U (12/1/2005 a) (0.0797546 - 0.227377)/(3 - 1) -0.0738113 0.0786043 U (3/1/2006 a) 0.227377 U (12/1/2005 a) (0.0786043 - 0.227377)/(4 - 1) -0.049591 0.0958589 U (4/1/2006 a) 0.227377 U (12/1/2005 a) (0.0958589 - 0.227377)/(5 - 1) -0.0328796 0.0648006 U (6/1/2006 a) 0.227377 U (12/1/2005 a) (0.0648006 - 0.227377)/(6 - 1) -0.0325153 0.0578988 U (9/1/2006 a) 0.227377 U (12/1/2005 a) (0.0578988 - 0.227377)/(7 - 1) -0.0282464 0.0736196 U (10/31/2006 a) 0.227377 U (12/1/2005 a) (0.0736196 - 0.227377)/(8 - 1) -0.0219654 0.0582822 U (12/1/2006 a) 0.227377 U (12/1/2005 a) (0.0582822 - 0.227377)/(9 - 1) -0.0211369 0.0728528 U (3/5/2007 a) 0.227377 U (12/1/2005 a) (0.0728528 - 0.227377)/(10 - 1) -0.0171694 0:0513804 U (6/6/2007 a) 0.227377 U (12/1/2005 a) (0.0513804 - 0.227377)/(11 - 1) -0.0175997 0.0797546 U (2/1/2006 a) 0.118098 U (1/1/2006 a) (0.0797546 - 0.118098)/(3 - 2) -0.0383436 0.0786043 U (3/1/2006 a) 0.118098 U (1/1/2006 a) (0.0786043 - 0.118098)/(4 - 2) -0.0197469 0.0958589 U (4/1/2006 a) 0.118098 U (1/1/2006 a) (0.0958589 - 0.118098)/(5 - 2) -0.00741309 0.0648006 U (6/1/2006 a) 0.118098 U (1/1/2006 a) (0.0648006 - 0.118098)/(6 - 2) -0.0133244 0.0578988 U (9/1/2006 a) 0.118098 U (1/1/2006 a) (0.0578988 - 0.118098)/(7 - 2) -0.0120399

.0.0582822 0.0736196 U (10/31/2006 a)

U (12/1/2006 a) 0.0728528 U (3/5/2007 a) 0.118098 0.118098 0.118098 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.0736196 (0.0582822 (0.0728528 0.118098)/(8- 2) 0.118098)/(9 - 2) 0.118098)/(10 - 2)

-0.00741309

-0.00854514

-0.00565567 0.0513804 U (6/6/2007 a) 0.118098 U (1/1/2006 a) (0.0513804 - 0.118098)/(11 - 2) -0.00741309 0.0786043 U (3/1/2006 a) 0.0797546 U (2/1/2006 a) (0.0786043 - 0.0797546)/(4 - 3) -0.00115031 0.0958589 U (4/1/2006 a) 0.0797546 U (2/1/2006 a) (0.0958589 - 0.0797546)/(5 - 3) 0.00805215 0.0648006 U (6/1/2006 a) 0.0797546 U (2/1/2006 a) (0.0648006 - 0.0797546)/(6 - 3) -0.00498466 0.0578988 U (9/1/2006 a) 0.0797546 U (2/1/2006 a) (0.0578988 - 0.0797546)/(7 - 3) -0.00546396 0.0736196 U (10/31/2006 a) 0.0797546 U (2/1/2006 a) (0.0736196 - 0.0797546)/(8 - 3) -0.00122699 0.0582822 U (12/1/2006 a) 0.0797546 U (2/1/2006 a) (0.0582822 - 0.0797546)/(9 - 3) -0.00357873 0.0728528 U (3/5/2007 a) 0.0797546 U (2/1/2006 a) (0.0728528 - 0.0797546)/(10 - 3) -0.000985977 0.0513804 U (6/6/2007 a) 0.0797546 U (2/1/2006 a) (0.0513804 - 0.0797546)/(11 - 3) -0.00354678 0.0958589 U (4/1/2006 a) 0.0786043 U (3/1/2006 a) (0.0958589 - 0.0786043)/(5 - 4) 0.0172546 0.0648006 U (6/1/2006 a) 0.0786043 U (3/1/2006 a) (0.0648006 - 0.0786043)/(6 - 4) -0.00690184 0.0578988 U (9/1/2006 a) 0.0786043 U (3/1/2006 a) (0.0578988 - 0.0786043)/(7- 4) -0.00690184 0.0736196 U (10/31/2006 a) 0.0786043 U (3/1/2006 a) (0.0736196- 0.0786043)/(8- 4) -0.00124617 0.0582822 U (12/1/2006 a) 0.0786043 U (3/1/2006 a) (0.0582822 - 0.0786043)/(9 - 4) -0.00406442 0.0728528 U (3/5/2007 a) 0.0786043 U (3/1/2006 a) (0.0728528 - 0.0786043)/(10 - 4) -0.000958589 0.0513804 U (6/6/2007 a) 0.0786043 U (3/1/2006 a) (0.0513804 - 0.0786043)/(11 - 4) -0.00388913 0.0648006 U (6/1/2006 a) 0.0958589 U (4/1/2006 a) (0.0648006 - 0.0958589)/(6 - 5) -0.0310583 0.0578988 U (9/1/2006 a) 0.0958589 U (4/1/2006 a) (0.0578988 - 0.0958589)/(7 - 5) -0.0189801 0.0736196 U (10/31/2006 a) 0.0958589 U (4/1/2006 a) (0.0736196- 0.0958589)/(8- 5) -0.00741309 0.0582822 U (12/1/2006 a) 0.0958589 U (4/1/2006 a) (0.0582822 - 0.0958589)/(9 - 5) -0.00939417 0.0728528 U (3/5/2007 a) 0.0958589 U (4/1/2006 a) (0.0728528 - 0.0958589)/(10 - 5) -0.00460123 0.0513804 U (6/6/2007 a) 0.0958589 U (4/1/2006 a) (0.0513804 - 0.0958589)/(11 - 5) -0.00741309 0.0578988 U (9/1/2006 a) 0.0648006 U (6/1/2006 a) (0.0578988 - 0.0648006)/(7 - 6) -0.00690184 0.0736196 U (10/31/2006 a) 0.0648006 U (6/1/2006 a) (0.0736196 - 0.0648006)/(8 - 6) 0.00440951 Page 1

.0.0582822 0.0728528 U (3/5/2007 (12/1/2006a)a) 0.0513804 U (6/6/2007 a) 0.0648006 U (6/1/2006 a) 0.0648006 U (6/1/2006 a) 0.0648006 U (6/1/2006 a)

(0.0582822 - 0.0648006)/(9 - 6) -0.0021728 (0.0728528 - 0.0648006)/(10 - 6) 0.00201304 (0.0513804 - 0.0648006)/(11 - 6) -0.00268405 0.0736196 U (10/31/2006 a) 0.0578988 U (9/1/2006 a) (0.0736196 - 0.0578988)/(8 - 7) 0.0157209 0.0582822 U (12/1/2006 a) 0.0578988 U (9/1/2006 a) (0.0582822 - 0.0578988)/(9 - 7) 0.000191718 0.0728528 U (3/5/2007 a) 0.0578988 U (9/1/2006 a) (0.0728528 - 0.0578988)/(10 - 7) 0.00498466 0.0513804 U (6/6/2007 a) 0.0578988 U (9/1/2006 a) (0.0513804 - 0.0578988)/(11 - 7) -0.0016296 0.0582822 U (12/1/2006 a) 0.0736196 U (10/31/2006 a) (0.0582822 - 0.0736196)/(9 - 8) -0.0153374 0.0728528 U (3/5/2007 a) 0.0736196 U (10/31/2006 a) (0.0728528 - 0.0736196)/(10 - 8) -0.000383436 0.0513804 U (6/6/2007 a) 0.0736196 U (10/31/2006 a) (0.0513804 - 0.0736196)/(11 - 8) -0.00741309 0.0728528 U (3/5/2007 a) 0.0582822 U (12/1/2006 a)

(0.0728528 - 0.0582822)/(10 - 9) 0.0145706 0.0513804 U (6/6/2007 a) 0.0582822 U (12/1/2006 a) (0.0513804 - 0.0582822)/(11 - 9) -0.00345092 0.0513804 U (6/6/2007 a) 0.0728528 U (3/5/2007 a) (0.0513804 - 0.0728528)/(11 0.0214724 Number of Q values = 55 Ordered Q Values n Q 1 -0.109279 2 -0.0738113 3 -0.049591 4 -0.0383436 5 -0.0328796 6 -0.0325153 7 -0.0310583 8 -0.0282464 9 -0.0219654 10 -0.0214724 11 -0.0211369 12 -0.0197469 13 -0.0189801 14 -0.0175997 15 -0.0171694 16 -0.0153374 17 -0.0133244 18 -0.0120399 19 -0.00939417 20 -0.00854514 21 -0.00741309 22 -0.00741309 23 -0.00741309 24 -0.00741309 25 -0.00741309 26 -0.00741309 27 -0.00690184 28 -0.00690184 29 -0.00690184 30 -0.00565567 31 -0.00546396 32 -0.00498466 33 -0.00460123 34 -0.00406442 Page 2

. 35 36 37

-0.00388913

-0.00357873

-0.00354678 38 -0.00345092 39 -0.00268405 40 -0.0021728 41 -0.0016296 42 -0.00124617 43 -0.00122699 44 -0.00115031 45 -0.000985977 46 -0.000958589 47 -0.000383436 48 0.000191718 49 0.00201304 50 0.00440951 51 0.00498466 52 0.00805215 53 0.0145706 54 0.0157209 55 0.0172546 Sen's Estimator (Median Q) is -0.00690184 Time Period Observations 12/1/2005 1 1/1/2006 1

. 2/1/2006 3/1/2006 4/1/2006 1

1 1

6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.0133244 = Q(17)

Upper limit is -0.00268405 = Q(39)

-0.00268405 < 0 indicating a downward trend in data.

Page 3

TEDE 0.3 Time-Series Graph of MWR-105S II 0.15 L) 0 0

1) 11 I um A-

0. V*

I R - - - - -

I (t 00 0 0-C) C) 0 (0 0 (DJ C-0 U) 0 0 00 0 0 00 (NJ C~)

0D (N4 LO Q-(NJ 0 i;4 CI,,

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MWR-105S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/11/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 0.149923 U (10/31/2006 a) ND<0 U (12/1/2005 a) (0.149923 - 0)/(8 - 1) 0.0214176 0.204603 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0.204603 - 0)/(9 - 1) 0.0255754 0.0182515 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0.0182515 - 0)/(10 - 1) 0.00202795 0.0383052 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0.0383052 - 0)/(11 - 1) 0.00383052 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0

. 0.149923 U (10/31/2006 a) 0.204603 U(12/1/2006 a) 0.0182515 U (3/5/2007 a)

ND<0 ND<0 ND<0 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.149923 - 0)/(8 - 2)

(0.204603 - 0)/(9 - 2)

(0.0182515- 0)/(10- 2) 0.0249872 0.0292291 0.00228144 0.0383052 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0.0383052 - 0)/(11 - 2) 0.00425613 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 0.149923 U (10/31/2006 a) ND<0 U (2/1/2006 a) (0.149923 - 0)/(8 - 3) 0.0299847 0.204603 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0.204603 - 0)/(9 - 3) 0.0341006 0.0182515 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0.0182515 - 0)/(10 - 3) 0.00260736 0.0383052 U(6/6/2007 a) ND<0 U (2/1/2006 a) (0.0383052 - 0)/(11 - 3) 0.00478815 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 0.149923 U (10/31/2006 a) ND<0 U (3/1/2006 a) (0.149923 - 0)/(8 - 4) 0.0374808 0.204603 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0.204603 - 0)/(9 - 4) 0.0409207 0.0182515 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0.0182515 - 0)/(10 - 4) 0.00304192 0.0383052 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0.0383052 - 0)/(11 - 4) 0.00547217 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 0.149923 U (10/31/2006 a) ND<0 U (4/1/2006 a) (0.149923 - 0)/(8 - 5) 0.0499744 0.204603 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0.204603 - 0)/(9 - 5) 0.0511508 0.0182515 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0.0182515 - 0)/(10 - 5) 0.00365031 0.0383052 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0.0383052 - 0)/(11 - 5) 0.0063842 S ND<0 U (9/1/2006 a) 0.149923 U (10/31/2006 a)

ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 ND<0 U (6/1/2006 a) (0.149923 - 0)/(8 - 6) 0.0749617 Page 1

0.204603 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0.204603 - 0)/(9 - 6) 0.0682011 0.0182515 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0.0182515- 0)/(10- 6) 0.00456288 0.0383052 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0.0383052 - 0)/(11 - 6) 0.00766104 0.149923 U (10/31/2006 a) ND<0 U (9/1/2006 a) (0.149923 - 0)/(8 - 7) 0.149923 0.204603 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0.204603 - 0)/(9 - 7) 0.102302 0.0182515 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0.0182515 - 0)/(10 - 7) 0.00608384 0.0383052 U (6/6/2007 a) ND<0 U (9/1/2006 a) (0.0383052 - 0)/(11 - 7) 0.0095763 0.204603 U (12/1/2006 a) 0.149923 U (10/31/2006 a) (0.204603 - 0.149923)/(9 - 8) 0.0546801 0.0182515 U (3/5/2007 a) 0.149923 U (10/31/2006 a) (0.0182515 - 0.149923)/(10- 8) -0.0658359 0.0383052 U (6/6/2007 a) 0.149923 U (10/31/2006 a) (0.0383052 - 0.149923)/(11 - 8) -0.037206 0.204603 U (12/1/2006 a) 0.0182515 U (3/5/2007 a) (0.0182515 - 0.204603)/(10- 9) -0.186352 0.0383052 U (6/6/2007 a) 0.204603 U (12/1/2006 a) (0.0383052 - 0.204603)/(11 - 9) -0.0831491 0.0383052 U (6/6/2007 a) 0.0182515 U (3/5/2007 a) (0.0383052 - 0.0182515)/(11 - 100.0200537 Number of Q values = 55 Ordered 0 Values n Q 1 -0.186352 2 -0.0831491 3 -0.0658359 4 -0.037206 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0.00202795 27 0.00228144 28 0.00260736 29 0.00304192 30 0.00365031 31 0.00383052 32 0.00425613 33 0.00456288 34 0.00478815 Page 2

35 0.00547217 36 0.00608384 37 0.0063842 38 0.00766104 39 0.0095763 40 0.0200537 41 0.0214176 42 0.0249872 43 0.0255754 44 0.0292291 45 0.0299847 46 0.0341006 47 0.0374808 48 0.0409207 49 0.0499744 50 0.0511508 51 0.0546801 52 0.0682011 53 0.0749617 54 0.102302 55 0.149923 Sen's Estimator (Median Q) is 0.00260736 Tied Group Value Members 1 0 7 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 798 B=0 C =210 D=0 E = 42 F=0 a = 2970 b = 8910 c = 220 Group Variance = 120.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 18.0684 M1 = (55- 18.0684)/2.0 = 18.4658 M2 = (55 + 18.0684)/2.0 + 1 = 37.5342 Lower limit is 0 = Q(18)

Upper limit is 0.00766104 = Q(38) 0 < 0 < 0.00766104 indicating no trend in data.

Page 3

TEDE 0.9 Time-Series Graph of MWR-106D 0.8 0.7 E

0.3 0

E 0.5C>C 0.1 0.

0 o 0CD0000.aN C, CD C 0 0 C 0 N QC C Sample Date Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MWR-106D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 0.342697 U (1/1/2006 a) 0.394662 U (12/1/2005 a) (0.342697 - 0.394662)/(2 - 1) -0.0519655 0.0805215 U (2/1/2006 a) 0.394662 U (12/1/2005 a) (0.0805215 - 0.394662)/(3 - 1) -0.15707 0.392297 U (3/1/2006 a) 0.394662 U (12/1/2005 a) (0.392297 - 0.394662)/(4 - 1) -0.000788258 0.103144 U (4/1/2006 a) 0.394662 U (12/1/2005 a) (0.103144 - 0.394662)/(5 - 1) -0.0728795 0.0655675 U (6/1/2006 a) 0.394662 U (12/1/2005 a) (0.0655675 - 0.394662)/(6 - 1) -0.0658189 0.0628834 U (9/1/2006 a) 0.394662 U (12/1/2005 a) (0.0628834 - 0.394662)/(7 - 1) -0.0552965 0.855023 U (10/31/2006 a) 0.394662 U (12/1/2005 a) (0.855023 - 0.394662)/(8 - 1) 0.0657659 0.22277 U (12/1/2006 a) 0.394662 U (12/1/2005 a) (0.22277 - 0.394662)/(9 - 1) -0.0214865 0.0297546 U (3/5/2007 a) 0.394662 U (12/1/2005 a) (0.0297546 - 0.394662)/(10 - 1) -0.0405453 0.0245399 U (4/1/2007 a) 0.394662 U (12/1/2005 a) (0.0245399 - 0.394662)/(11 - 1) -0.0370122 0.0402607 U (6/6/2007 a) 0.394662 U (12/1/2005 a) (0.0402607 - 0.394662)/(12 - 1) -0.0322183 0.0805215 U (2/1/2006 a) 0.342697 U (1/1/2006 a) (0.0805215 - 0.342697)/(3 - 2) -0.262175 0.392297 U (3/1/2006 a) 0.342697 U (1/1/2006 a) (0.392297 - 0.342697)/(4 - 2) 0.0248003 0.103144 U (4/1/2006 a) 0.342697 U (1/1/2006 a) (0.103144 - 0.342697)/(5 - 2) -0.0798508 0.0655675 U (6/1/2006 a) 0.342697 U (1/1/2006 a) (0.0655675 - 0.342697)/(6 - 2) -0.0692823 0.0628834 U (9/1/2006 a) 0.342697 U (1/1/2006 a) (0.0628834 - 0.342697)/(7 - 2) -0.0559627

0.855023 U (10/31/2006 a) 0.342697 U (1/1/2006 a) (0.855023 - 0.342697)/(8 - 2) 0.0853877 0.22277 U (12/1/2006 a) 0.342697 U (1/1/2006 a) (0.22277 - 0.342697)/(9 - 2) -0.0171324 0.0297546 U (3/5/2007 a) 0.342697 U (1/1/2006 a) (0.0297546 - 0.342697)/(10 - 2) -0.0391178 0.0245399 U (4/1/2007 a) 0.342697 U (1/1/2006 a) (0.0245399 - 0.342697)/(11 - 2) -0.0353508 0.0402607 U (6/6/2007 a) 0.342697 U (1/1/2006 a) (0.0402607 - 0.342697)/(12 - 2) -0.0302436 0.392297 U (3/1/2006 a) 0.0805215 U (2/1/2006 a) (0.392297 - 0.0805215)/(4 - 3) 0.311776 0.103144 U (4/1/2006 a) 0.0805215 U (2/1/2006 a) (0.103144 - 0.0805215)/(5 - 3) 0.0113114 0.0655675 U (6/1/2006 a) 0.0805215 U (2/1/2006 a) (0.0655675 - 0.0805215)/(6 - 3) -0.00498466 0.0628834 U (9/1/2006 a) 0.0805215 U (2/1/2006 a) (0.0628834 - 0.0805215)/(7 - 3) -0.00440951 0.855023 U (10/31/2006 a) 0.0805215 U (2/1/2006 a) (0.855023 - 0.0805215)/(8 - 3) 0.1549 0.22277 U (12/1/2006 a) 0.0805215 U (2/1/2006 a) (0.22277 - 0.0805215)/(9 - 3) 0.0237081 0.0297546 U (3/5/2007 a) 0.0805215 U (2/1/2006 a) (0.0297546 - 0.0805215)/(10 - 3) -0.00725241 0.0245399 U (4/1/2007 a) 0.0805215 U (2/1/2006 a) (0.0245399 - 0.0805215)/(11 - 3) -0.0069977 0.0402607 U (6/6/2007 a) 0.0805215 U (2/1/2006 a) (0.0402607 - 0.0805215)/(12 - 3) -0.00447342 0.103144 U (4/1/2006 a) 0.392297 U (3/1/2006 a) (0.103144 - 0.392297)/(5 - 4) -0.289153 0.0655675 U (6/1/2006 a) 0.392297 U (3/1/2006 a) (0.0655675 - 0.392297)/(6 - 4) -0.163365 0.0628834 U (9/1/2006 a) 0.392297 U (3/1/2006 a) (0.0628834 - 0.392297)/(7 - 4) -0.109805 0.855023 U (10/31/2006 a) 0.392297 U (3/1/2006 a) (0.855023 - 0.392297)/(8 - 4) 0.115681 0.22277 U (12/1/2006 a) 0.392297 U (3/1/2006 a) (0.22277 - 0.392297)/(9 - 4) -0.0339055 0.0297546 U (3/5/2007 a) 0.392297 U (3/1/2006 a) (0.0297546 - 0.392297)/(10 - 4) -0.0604238 0.0245399 U (4/1/2007 a) 0.392297 U (3/1/2006 a) (0.0245399 - 0.392297)/(11 - 4) -0.0525368 0.0402607 U (6/6/2007 a) 0.392297 U (3/1/2006 a) (0.0402607 - 0.392297)/(12 - 4) -0.0440046 0.0655675 U (6/1/2006 a) 0.103144 U (4/1/2006 a) (0.0655675 - 0.103144)/(6 - 5) -0.0375767

.0.855023 0.0628834 U (9/1/2006 a)

U (10/31/2006 a) 0.22277 U (12/1/2006 a) 0.103144 0.103144 0.103144 U (4/1/2006 a)

U (4/1/2006 a)

(0.0628834 - 0.103144)/(7 - 5)

(0.855023 - 0.103144)/(8 - 5)

(0.22277 - 0.103144)/(9 - 5)

-0.0201304 0.250626 0.0299064 0.0297546 U (3/5/2007 a) 0.103144 U (4/1/2006 a) (0.0297546 - 0.103144)/(10 - 5) -0.0146779 Page 1

.0.0245399 0.0402607 U (6/6/2007 (4/1/2007 a) 0.103144 U (4/1/2006 a) 0.103144 U (4/1/2006 a)

(0.0245399 - 0.103144)/(11 - 5) -0.0131007 (0.0402607 - 0.103144)/(12 - 5) -0.00898335 0.0628834 U (9/1/2006 a) 0.0655675 U (6/1/2006 a) (0.0628834 - 0.0655675)/(7 - 6) -0.00268405 0.855023 U (10/31/2006 a) 0.0655675 U (6/1/2006 a) (0.855023 - 0.0655675)/(8 - 6) 0.394728 0.22277 U (12/1/2006 a) 0.0655675 U (6/1/2006 a) (0.22277 - 0.0655675)/(9 - 6) 0.0524008 0.0297546 U (3/5/2007 a) 0.0655675 U (6/1/2006 a) (0.0297546 - 0.0655675)/(10 - 6) -0.00895322 0.0245399 U (4/1/2007 a) 0.0655675 U (6/1/2006 a) (0.0245399 - 0.0655675)/(11 - 6) -0.00820552 0.0402607 U (6/6/2007 a) 0.0655675 U (6/1/2006 a) (0.0402607 - 0.0655675)/(12 - 6) -0.00421779 0.855023 U (10/31/2006 a) 0.0628834 U (9/1/2006 a) (0.855023 - 0.0628834)/(8 - 7) 0.79214 0.22277 U (12/1/2006 a) 0.0628834 U (9/1/2006 a) (0.22277 - 0.0628834)/(9 - 7) 0.0799433 0.0297546 U (3/5/2007 a) 0.0628834 U (9/1/2006 a) (0.0297546 - 0.0628834)/(10 - 7) -0.0110429 0.0245399 U (4/1/2007 a) 0.0628834 U (9/1/2006 a) (0.0245399 - 0.0628834)/(11 - 7) -0.00958589 0.0402607 U (6/6/2007 a) 0.0628834 U (9/1/2006 a) (0.0402607 - 0.0628834)/(12 - 7) -0.00452454 0.22277 U (12/1/2006 a) 0.855023 U (10/31/2006 a) (0.22277 - 0.855023)/(9 - 8) -0.632253 0.0297546 U (3/5/2007 a) 0.855023 U (10/31/2006 a) (0.0297546 - 0.855023)/(10 - 8) -0.412634 0.0245399 U (4/1/2007 a) 0.855023 U (10/31/2006 a) (0.0245399 - 0.855023)/(11 - 8) -0.276828 0.0402607 U (6/6/2007 a) 0.855023 U (10/31/2006 a) (0.0402607 - 0.855023)/(12 - 8) -0;203691 0.0297546 U (3/5/2007 a) 0.22277 U (12/1/2006 a) (0.0297546 - 0.22277)/(10 - 9) -0.193015 0.0245399 U (4/1/2007 a) 0.22277 U (12/1/2006 a) (0.0245399 - 0.22277)/(11 - 9) -0.099115 0.0402607 U (6/6/2007 a) 0.22277 U (12/1/2006 a) (0.0402607 - 0.22277)/(12 - 9) -0.0608364 0.0297546 U (3/5/2007 a) 0.0245399 U (4/1/2007 a) (0.0245399 - 0.0297546)/(11 0.00521472 0.0402607 U (6/6/2007 a) 0.0297546 U (3/5/2007 a) (0.0402607 - 0.0297546)/(12 - 100.00525307 S0.0402607 U (6/6/2007 a) 0.0245399 U (4/1/2007 a) (0.0402607 - 0.0245399)/(12 - 110.0157209 Number of Q values = 66 Ordered Q Values n Q 1 -0.632253 2 -0.412634 3 -0.289153 4 -0.276828 5 -0.262175 6 -0.203691 7 -0.193015 8 -0.163365 9 -0.15707 10 -0.109805 11 -0.099115 12 -0.0798508 13 -0.0728795 14 -0.0692823 15 -0.0658189 16 -0.0608364 17 -0.0604238 18 -0.0559627 O 19 20 21

-0.0552965

-0.0525368

-0.0519655 22 -0.0440046 Page 2

23 24 -0.0405453

-0.0391178 25 -0.0375767 26 -0.0370122 27 -0.0353508 28 -0.0339055 29 -0.0322183 30 -0.0302436 31 -0.0214865 32 -0.0201304 33 -0.0171324 34 -0.0146779 35 -0.0131007 36 -0.0110429 37 -0.00958589 38 -0.00898335 39 -0.00895322 40 -0.00820552 41 -0.00725241 42 -0.0069977 43 -0.00521472 44 -0.00498466 45 -0.00452454 46 -0.00447342 47 -0.00440951 48 -0.00421779 49 -0.00268405 50 -0.000788258 51 0.00525307 52 0.0113114 53 0.0157209 54 0.0237081 55 0.0248003 56 0.0299064 57 0.0524008 58 0.0657659 59 0.0799433 60 0.0853877 61 0.115681 62 0.1549 63 0.250626 64 0.311776 65 0.394728 66 0.79214 Sen's Estimator (Median Q) is -0.0159052 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 Page 3

. 6/6/2007 4/1/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 3828 b = 11880 c = 264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is -0.0519655 = Q(21)

Upper limit is -0.00447342 = 0(46)-

-0.00447342 < 0 indicating a downward trend in data.

Page 4

TEDE E

E c

0

-)

0 0

co CD C.

C) C) (0C C) 0 N-.

o) 0D a 0C (C) 0 0

o 0 0O 0 (IN Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-106S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 1.0365 U (1/1/2006 a) 0.318798 U (12/1/2005 a) (1.0365 - 0.318798)/(2 - 1) 0.717706 0.763031 U (2/1/2006 a) 0.318798 U (12/1/2005 a) (0.763031 - 0.318798)/(3 - 1) 0.222116 0.494391 U (3/1/2006 a) 0.318798 U (12/1/2005 a) (0.494391 - 0.318798)/(4 - 1) 0.0585307 0.272982 U (4/1/2006 a) 0.318798 U (12/1/2005 a) (0.272982 - 0.318798)/(5 - 1) -0.0114542 0.558194 U (6/1/2006 a) 0.318798 U (12/1/2005 a) (0.558194 - 0.318798)/(6 - 1) 0.047879 1.50647 U (9/1/2006 a) 0.318798 U (12/1/2005 a) (1.50647 - 0.318798)/(7 - 1) 0.197945 0.959024 U (10/31/2006 a) 0.318798 U (12/1/2005 a) (0.959024 - 0.318798)/(8 - 1) 0.0914608 0.215129 U (12/1/2006 a) 0.318798 U (12/1/2005 a) (0.215129 - 0.318798)/(9 - 1) -0.0129587 0.544118 U (3/5/2007 a) 0.318798 U (12/1/2005 a) (0.544118 - 0.318798)/(10 - 1) 0.0250355 0.181061 U (4/1/2007 a) 0.318798 U (12/1/2005 a) (0;181061 - 0.318798)/(11 - 1) -0.0137737 0.352733 U (6/6/2007 a) 0.318798 U (12/1/2005 a) (0.352733 - 0.318798)/(12 - 1) 0.00308497 0.763031 U (2/1/2006 a) 1.0365 U (1/1/2006 a) (0.763031 - 1.0365)/(3 - 2) -0.273474 0.494391 U (3/1/2006 a) 1.0365 U (1/1/2006 a) (0.494391 - 1.0365)/(4 - 2) -0.271057 0.272982 U (4/1/2006 a) 1.0365 U (1/1/2006 a) (0.272982 - 1.0365)/(5 - 2) -0.254508 0.558194 U (6/1/2006 a) 1.0365 U (1/1/2006 a) (0.558194 - 1.0365)/(6 - 2) -0.119578

.0.959024 1.50647 U (9/1/2006 a)

U (10/3i/2006 a) 0.215129 U (12/1/2006 a) 1.0365 1.0365 1.0365 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(1.50647 - 1.0365)/(7 - 2)

(0.959024 - 1.0365)/(8 - 2)

(0.215129- 1.0365)/(9 - 2) 0.0939927

-0.0129133

-0.117339 0.544118 U (3/5/2007 a) 1.0365 U (1/1/2006 a) (0.544118 - 1.0365)/(10 - 2) -0.0615483 0.181061 U (4/1/2007 a) 1.0365 U (1/1/2006 a) (0.181061 - 1.0365)/(11 - 2) -0.0950492 0.352733 U (6/6/2007 a) 1.0365 U (1/1/2006 a) (0.352733 - 1.0365)/(12- 2) -0.0683771 0.494391 U (3/1/2006 a) 0.763031 U (2/1/2006 a) (0.494391 - 0.763031)/(4 - 3) -0.26864 0.272982 U (4/1/2006 a) 0.763031 U (2/1/2006 a) (0.272982 - 0.763031)/(5- 3) -0.245025 0.558194 U (6/1/2006 a) 0.763031 U (2/1/2006 a) (0.558194- 0.763031)/(6- 3) -0.068279 1.50647 U (9/1/2006 a) 0.763031 U (2/1/2006 a) (1.50647 - 0.763031)/(7 - 3) 0.185859 0.959024 U (10/31/2006 a) 0.763031 U (2/1/2006 a) (0.959024 - 0.763031)/(8 - 3) 0.0391987 0.215129 U (12/1/2006 a) 0.763031 U (2/1/2006 a) (0.215129 - 0.763031)/(9 - 3) -0.091317 0.544118 U (3/5/2007 a) 0.763031 U (2/1/2006 a) (0.544118 - 0.763031)/(10 - 3) -0.0312732 0.181061 U (4/1/2007 a) 0.763031 U (2/1/2006 a) (0.181061 - 0.763031)/(11 - 3) -0.0727462 0.352733 U (6/6/2007 a) 0.763031 U (2/1/2006 a) (0.352733 - 0.763031)/(12- 3) -0.0455886 0.272982 U (4/1/2006 a) 0.494391 U (3/1/2006 a) (0.272982 - 0.494391)/(5 - 4) -0.221409 0.558194 U (6/1/2006 a) 0.494391 U (3/1/2006 a) (0.558194 - 0.494391)/(6 - 4) 0.0319015 1.50647 U (9/1/2006 a) 0.494391 U (3/1/2006 a) (1.50647 - 0.494391)/(7- 4) 0.337359 0.959024 U (10/31/2006 a) 0.494391 U (3/1/2006 a) (0.959024 - 0.494391)/(8- 4) 0.116158 0.215129 U (12/1/2006 a) 0.494391 U (3/1/2006 a) (0.215129 - 0.494391)/(9- 4) -0.0558524 0.544118 U (3/5/2007 a) 0.494391 U (3/1/2006 a) (0.544118 - 0.494391)/(10 - 4) 0.00828791 0.181061 U (4/1/2007 a) 0.494391 U (3/1/2006 a) (0.181061 - 0.494391)/(11 - 4) -0.0447613 0.352733 U (6/6/2007 a) 0.494391 U (3/1/2006 a) (0.352733 - 0.494391 )/(12 - 4) -0.0177072 0.558194 U (6/1/2006 a) 0.272982 U (4/1/2006 a) (0.558194 - 0.272982)/(6 - 5) 0.285212

.0.959024 1.50647 U (9/1/2006 a)

U (10/31/2006 a) 0.215129 U (12/1/2006 a) 0.272982 0.272982 0.272982 U (4/1/2006 U (4/1/2006 U (4/1/2006 a) a)

a)

(1.50647 - 0.272982)/(7 - 5)

(0.959024 - 0.272982)/(8 - 5)

(0.215129- 0.272982)/(9- 5) 0.616743 0.228681

-0.0144632 0.544118 U (3/5/2007 a) 0.272982 U (4/1/2006 a) (0.544118 - 0.272982)/(10 - 5) 0.0542273 Page 1

0.272982 U (4/1/2006 a) (0.181061 - 0.272982)/(11 - 5) -0.0153201 O 0.181061 U 0.352733 U (6/6/2007 (4/1/2007 a) 0.272982 U (4/1/2006 a) (0.352733 - 0.272982)/(12 - 5) 0.0113931 1.50647 U (9/1/2006 a) 0.558194 U (6/1/2006 a) (1.50647 - 0.558194)/(7- 6) 0.948274 0.959024 U (10/31/2006 a) 0.558194 U (6/1/2006 a) (0.959024 - 0.558194)/(8 - 6) 0.200415 0.215129 U (12/1/2006 a) 0.558194 U (6/1/2006 a) (0.215129- 0.558194)/(9- 6) -0.114355 0.544118 U (3/5/2007 a) 0.558194 U (6/1/2006 a) (0.544118 - 0.558194)/(10 - 6) -0.0035189 0.181061 U (4/1/2007 a) 0.558194 U (6/1/2006 a) (0.181061 - 0.558194)/(11 - 6) -0.0754265 0.352733 U (6/6/2007 a) 0.558194 U (6/1/2006 a) (0.352733 - 0.558194)/(12 - 6) -0.0342434 0.959024 U (10/31/2006 a) 1.50647 U (9/1/2006 a) (0.959024 - 1.50647)/(8 - 7) -0.547444 0.215129 U (12/1/2006 a) 1.50647 U (9/1/2006 a) (0.215129- 1.50647)/(9 - 7) -0.64567 0.544118 U (3/5/2007 a) 1.50647 U (9/1/2006 a) (0.544118 - 1.50647)/(10 - 7) -0.320783 0.181061 U (4/1/2007 a) 1.50647 U (9/1/2006 a) (0.181061 - 1.50647)/(11 - 7) -0.331352 0.352733 U (6/6/2007 a) 1.50647 U (9/1/2006 a) (0.352733 - 1.50647)/(12 - 7) -0.230747 0.215129 U (12/1/2006 a) 0.959024 U (10/31/2006 a) (0.215129 - 0.959024)/(9 - 8) -0.743896 0.544118 U (3/5/2007 a) 0.959024 U (10/31/2006 a) (0.544118 - 0.959024)/(10 - 8) -0.207453 0.181061 U (4/1/2007 a) 0.959024 U (10/31/2006 a) (0.181061 - 0.959024)/(11 - 8) -0.259321 0.352733 U (6/6/2007 a) 0.959024 U (10/31/2006 a) (0.352733 - 0.959024)/(12 - 8) -0.151573 0.544118 U (3/5/2007 a) 0.215129 U (12/1/2006 a) (0.544118 - 0.215129)/(10- 9) 0.328989 0.181061 U (4/1/2007 a) 0.215129 U (12/1/2006 a) (0.181061 - 0.215129)/(11 - 9) -0.0170337 0.352733 U (6/6/2007 a) 0.215129 U (12/1/2006 a) (0.352733 - 0.215129)/(12- 9) 0.0458681 0.544118 U (3/5/2007 a) 0.181061 U (4/1/2007 a) (0.181061 - 0.544118)/(11 - 10) -0.363057 0.352733 U (6/6/2007 a) 0.544118 U (3/5/2007 a) (0.352733 - 0.544118)/(12 - 10) -0.0956925 S 0.352733 U (6/6/2007 a) 0.181061 U (4/1/2007 a) (0.352733 - 0.181061)/(12 - 11) 0.171672 Number of Q values = 66 Ordered 0 Values n a 1 -0.743896 2 -0.64567 3 -0.547444 4 -0.363057 5 -0.331352 6 -0.320783 7 -0.273474 8 -0.271057 9 -0.26864 10 -0.259321 11 -0.254508 12 -0.245025 13 -0.230747 14 -0.221409 15 -0.207453 16 -0.151573 17 -0.119578 18 -0.117339 19 -0.114355 20 -0.0956925 21 -0.0950492 22 -0.091317 Page 2

24 23 -0.0727462

-0.0754265 25 -0.0683771 26 -0.068279 27 -0.0615483 28 -0.0558524 29 -0.0455886 30 -0.0447613 31 -0.0342434 32 -0.0312732 33 -0.0177072 34 -0.0170337 35 -0.0153201 36 -0.0144632 37 -0.0137737 38 -0.0129587 39 -0.0129133 40 -0.0114542 41 -0.0035189 42 0.00308497 43 0.00828791 44 0.0113931 45 0.0250355 46 0.0319015 47 0.0391987 48 0.0458681 49 0.047879 50 0.0542273 51 0.0585307 52 0.0914608 53 0.0939927 54 0.116158 55 0.171672 56 0.185859 57 0.197945 58 0.200415 59 0.222116 60 0.228681 61 0.285212 62 0.328989 63 0.337359 64 0.616743 65 0.717706 66 0.948274 Sen's Estimator (Median Q) is -0.0173704 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 Page 3

. 6/6/2007 4/1/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 3828 b = 11880 c= 264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is -0.0950492 = Q(21)

Upper limit is 0.0319015 = Q(46)

-0.0950492 < 0 < 0.0319015 indicating no trend in data.

Page 4

TEDE Time-Series Graph of MW-107D 0.1 0.09 0.08 0.07

- 0.06 E

0.04 0

C-)

C 0.03 0.02 0.01 ocI

)O (o (D 0 0 ooC, 0 to 0 0(

m 00e

(

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-107D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 0.0264954 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0.0264954 - 0)/(3 - 1) 0.0132477 0.0582822 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0.0582822 - 0)/(4 - 1) 0.0194274 0.0640337 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0.0640337 - 0)/(5 - 1) 0.0160084 0.077454 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0.077454 - 0)/(6 - 1) 0.0154908 0.0855061 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0.0855061 - 0)/(7 - 1) 0.014251 0.0855061 U (10/31/2006 a) ND<0 U (12/1/2005 a) (0.0855061 - 0)/(8 - 1) 0.0122152 0.0381518 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0.0381518 - 0)/(9 - 1) 0.00476898 0.0912577 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0.0912577 - 0)/(10 - 1) 0.0101397 0.0839724 U (6/6/2007 a). ND<O U (12/1/2005 a) (0.0839724 - 0)/(11 - 1) 0.00839724 0.0264954 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0.0264954 - 0)/(3 - 2) 0.0264954 0.0582822 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0.0582822 - 0)/(4 - 2) 0.0291411 0.0640337 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0.0640337 - 0)/(5 - 2) 0.0213446 0.077454 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0.077454 - 0)/(6 - 2) 0.0193635 0.0855061 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0.0855061 - 0)/(7 - 2) 0.0171012

. 0.0855061 U (10/31/2006 a) 0.0381518 U (12/1/2006 a) 0.0912577 U (3/5/2007 a)

ND<0 ND<0 ND<0 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.0855061 - 0)/(8 - 2)

(0.0381518 - 0)/(9 - 2)

(0.0912577 - 0)/(10 - 2) 0.014251 0.00545026 0.0114072 0.0839724 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0.0839724 - 0)/(11 - 2) 0.00933027 0.0582822 U (3/1/2006 a) 0.0264954 U (2/1/2006 a) (0.0582822 - 0.0264954)/(4 - 3) 0.0317868 0.0640337 U (4/1/2006 a) 0.0264954 U (2/1/2006 a) (0.0640337 - 0.0264954)/(5 - 3) 0.0187692 0.077454 U (6/1/2006 a) 0.0264954 U (2/1/2006 a) (0.077454 - 0.0264954)/(6 - 3) 0.0169862 0.0855061 U (9/1/2006 a) 0.0264954 U (2/1/2006 a) (0.0855061 - 0.0264954)/(7 - 3) 0.0147527 0.0855061 U (10/31/2006 a) 0.0264954 U (2/1/2006 a) (0.0855061 - 0.0264954)/(8- 3) 0.0118021 0.0381518 U (12/1/2006 a) 0.0264954 U (2/1/2006 a) (0.0381518 - 0.0264954)/(9- 3) 0.00194274 0.0912577 U (3/5/2007 a) 0.0264954 U (2/1/2006 a) (0.0912577 - 0.0264954)/(10- 3) 0.00925175 0.0839724 U (6/6/2007 a) 0.0264954 U (2/1/2006 a) (0.0839724 - 0.0264954)/(11 - 3) 0.00718462 0.0640337 U (4/1/2006 a) 0.0582822 U (3/1/2006 a) (0.0640337 - 0.0582822)/(5- 4) 0.00575153 0.077454 U (6/1/2006 a) 0.0582822 U (3/1/2006 a) (0.077454 - 0.0582822)/(6 - 4) 0.00958589 0.0855061 U (9/1/2006 a) 0.0582822 U (3/1/2006 a) (0.0855061 - 0.0582822)/(7 - 4) 0.00907464 0.0855061 U (10/31/2006 a) 0.0582822 U (3/1/2006 a) (0.0855061 - 0.0582822)/(8 - 4) 0.00680598 0.0381518 U (12/1/2006 a) 0.0582822 U (3/1/2006 a) (0.0381518- 0.0582822)/(9- 4) -0.00402607 0.0912577 U (3/5/2007 a) 0.0582822 U (3/1/2006 a) (0.0912577- 0.0582822)/(10- 4) 0.00549591 0.0839724 U (6/6/2007 a) 0.0582822 U (3/1/2006 a) (0.0839724 - 0.0582822)/(11 - 4) 0.00367003 0.077454 U (6/1/2006 a) 0.0640337 U (4/1/2006 a) (0.077454 - 0.0640337)/(6 - 5) 0.0134202 0.0855061 U (9/1/2006 a) 0.0640337 U (4/1/2006 a) (0.0855061 - 0.0640337)/(7 - 5) 0.0107362 0.0855061 U (10/31/2006 a) 0.0640337 U (4/1/2006 a) (0.0855061 - 0.0640337)/(8 - 5) 0.00715746 0.0381518 U (12/1/2006 a) 0.0640337 U (4/1/2006 a) (0.0381518 - 0.0640337)/(9 - 5) -0.00647048 0.0912577 U (3/5/2007 a) 0.0640337 U (4/1/2006 a) (0.0912577 - 0.0640337)/(10 - 5) 0.00544479 0.0839724 U (6/6/2007 a) 0.0640337 U (4/1/2006 a) (0.0839724 - 0.0640337)/(11 - 5) 0.00332311

. 0.0855061 U (9/1/2006 a) 0.0855061 U (10/31/2006 a) 0.077454 U (6/1/2006 a) 0.077454 U (6/1/2006 a)

(0.0855061 - 0.077454)/(7 - 6)

(0.0855061 - 0.077454)/(8 - 6) 0.00805215 0.00402607 Page 1

.0.0381518 0.0912577 UU (12/1/2006a)a)

(3/5/2007 0.0839724 U (6/6/2007 a) 0.077454 U (6/1/2006 a) 0.077454 U (6/1/2006 a) 0.077454 U (6/1/2006 a)

(0.0381518 - 0.077454)/(9- 6) -0.0131007 (0.0912577 - 0.077454)/(10 - 6) 0.00345092 (0.0839724 - 0.077454)/(11 - 6) 0.00130368 0.0855061 U (10/31/2006 a) 0.0855061 U (9/1/2006 a) (0.0855061 - 0.0855061)/(8 - 7) 0 0.0381518 U (12/1/2006 a) 0.0855061 U (9/1/2006 a) (0.0381518 - 0.0855061)/(9 - 7) -0.0236771 0.0912577 U (3/5/2007 a) 0.0855061 U (9/1/2006 a) (0.0912577 - 0.0855061)/(10 - 7) 0.00191718 0.0839724 U (6/6/2007 a) 0.0855061 U (9/1/2006 a) (0.0839724 - 0.0855061)/(11 - 7) -0.000383435 0.0381 518 U (12/1/2006 a) 0.0855061 U (10/31/2006 a) (0.0381518- 0.0855061)/(9- 8) -0.0473543 0.0912577 U (3/5/2007 a) 0.0855061 U (10/31/2006 a) (0.0912577- 0.0855061)/(10- 8) 0.00287577 0.0839724 U (6/6/2007 a) 0.0855061 U (10/31/2006 a) (0.0839724 - 0.0855061)/(11 - 8) -0.000511247 0.09 12577 U (3/5/2007 a) (0.0912577 - 0.0381518)/(10 - 9) 0.0531058 0.0381518 U (12/1/2006 a) 0.0839724 U (6/6/2007 a) 0.0381518 U (12/1/2006 a) (0.0839724 - 0.0381518)/(11 - 9) 0.0229103 0.0839724 U (6/6/2007 a) 0.0912577 U (3/5/2007 a) (0.0839724 - 0.0912577)/(11 0.00728528 Number of Q values = 55 Ordered Q Values n a 1 -0.0473543 2 -0.0236771 3 -0.0131007 4 -0.00728528 5 -0.00647048 6 -0.00402607 7 -0.000511247 8 -0.000383435 9 0 10 0 11 0.00130368 12 0.00191718 13 0.00194274 14 0.00287577 15 0.00332311 16 0.00345092 17 0.00367003 18 0.00402607 19 0.00476898 20 0.00544479 21 0.00545026 22 0.00549591 23 0.00575153 24 0.00680598 25 0.00715746 26 0.00718462 27 0.00805215 28 0.00839724 29 0.00907464 30 0.00925175

. 31 32 33 0.00933027 0.00958589 0.0101397 34 0.0107362 Page 2

O 36 35 0.0118021 0.0114072 37 0.0122152 38 0.0132477 39 0.0134202 40 0.014251 41 0.014251 42 0.0147527 43 0.0154908 44 0.0160084 45 0.0169862 46 0.0171012 47 0.0187692 48 0.0193635 49 0.0194274 50 0.0213446 51 0.0229103 52 0.0264954 53 0.0291411 54 0.0317868 55 0.0531058 Sen's Estimator (Median Q) is 0.00839724 Tied Group Value Members 1 0 2 2 0.0855061 2 Time Period 12/1/2005 1Observations 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 36 B=0 C=0 D=0 E=4 F=0 a = 2970 b = 8910 c= 220 Group Variance = 163 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 21.0001

. M1 = (55 - 21.0001)/2.0 = 17 M2 = (55 + 21.0001)/2.0 + 1 = 39 Lower limit is 0.00367003 = Q(17)

Upper limit is 0.0134202 = Q(39)

Page 3

0.00367003 > 0 indicating an upward trend in data.

Page 4

TEDE 0

C.2 0

0 CC D 0 0 C'-

0 o 0 (0 00 0N 0 (N 00 0" 0 0 (N, QN (o

B Sample Date Page 1

O Sen's Slope Analysis Parameter: TEDE Location: MW-107S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 0.0216258 U (10/31/2006 a) ND<0 U (12/1/2005 a) (0.0216258 - 0)/(8 - 1) 0.0030894 0.0258052 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0.0258052 - 0)/(9 - 1) 0.00322565 0.0294095 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0.0294095 - 0)/(10 - 1) 0.00326772 0.0228911 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0.0228911 - 0)/(11- 1) 0.00228911 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0- 0)/(4- 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0- 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0

. 0.0216258 U (10/31/2006 a) 0.0258052 U (12/1/2006 a) 0.0294095 U (3/5/2007 a)

ND<0 ND<0 ND<0 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.0216258-(0.0258052 -

(0.0294095 -

0)/(8 - 2) 0)/(9 - 2) 0)/(10 - 2) 0.00360429 0.00368646 0.00367619 0.0228911 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0.0228911 - 0)/(11 - 2) 0.00254346 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 0.0216258 U (10/31/2006 a) ND<0 U (2/1/2006 a) (0.0216258 - 0)/(8 - 3) 0.00432515 0.0258052 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0.0258052 - 0)/(9 - 3) 0.00430087 0.0294095 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0.0294095 - 0)/(10- 3) 0.00420136 0.0228911 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0.0228911 - 0)/(11 - 3) 0.00286139 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 0.0216258 U (10/31/2006 a) ND<0 U (3/1/2006 a) (0.0216258 - 0)/(8 - 4) 0.00540644 0.0258052 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0.0258052 - 0)/(9 - 4) 0.00516104 0.0294095 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0.0294095 - 0)/(10- 4) 0.00490158 0.0228911 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0.0228911 - 0)/(11 - 4) 0.00327016 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 0.0216258 U (10/31/2006 a) ND<0 U (4/1/2006 a) (0.0216258- 0)/(8- 5) 0.00720859 0.0258052 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0.0258052 - 0)/(9- 5) 0.0064513 0.0294095 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0.0294095 - 0)/(10 - 5) 0.0058819 0.0228911 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0.0228911 - 0)/(11 - 5) 0.00381518

. ND<0 U (9/1/2006 a) 0.0216258 U (10/31/2006 a)

ND<0 U (6/1/2006 a)

(0 - 0)/(7 - 6)

(0.0216258 - 0)/(8 - 6) 0 0.0108129 Page 1

ND<0 U (6/1/2006 a) (0.0258052 - 0)/(9 - 6) 0.00860174 S 0.0294095 0.0258052 U (3/5/2007 (12/1/2006a)a) 0.0228911 U (6/6/2007 a)

ND<0 U (6/1/2006 a)

(0.0294095 - 0)/(10 - 6)

(0.0228911 - 0)/(11 - 6) 0.00735238 0.00457822 0.0216258 U (10/31/2006 a) ND<0 U (9/1/2006 a) (0.0216258 - 0)/(8 - 7) 0.0216258 0.0258052 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0.0258052 - 0)/(9 - 7) 0.0129026 0.0294095 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0.0294095 - 0)/(10 - 7) 0.00980317 0.0228911 U (6/6/2007 a) ND<0 U (9/1/2006 a) (0.0228911 - 0)/(11 - 7) 0.00572278 0.0258052 U (12/1/2006 a) 0.0216258 U (10/31/2006 a) (0.0258052 - 0.0216258)/(9 - 8) 0.00417945 0.0294095 U (3/5/2007 a) 0.0216258 U (10/31/2006 a) (0.0294095 - 0.0216258)/(10 - 8) 0.00389187 0.0228911 U (6/6/2007 a) 0.0216258 U (10/31/2006 a) (0.0228911 - 0.0216258)/(11 - 8) 0.000421779 0.0294095 U (3/5/2007 a) 0.0258052 U (12/1/2006 a) (0.0294095 - 0.0258052)/(10,- 9) 0.00360429 0.0228911 U (6/6/2007 a) 0.0258052 U (12/1/2006 a) (0.0228911 - 0.0258052)/(11 - 9) -0.00145706 0.0228911 U (6/6/2007 a) 0.0294095 U (3/5/2007 a) (0.0228911 - 0.0294095)/(11 0.00651841 Number of Q values = 55 Ordered Q Values n Q 1 -0.00651841 2 -0.00145706 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0.000421779 25 0.00228911 26 0.00254346 27 0.00286139 28 0.0030894 29 0.00322565 30 0.00326772 31 0.00327016 32 0.00360429 33 0.00360429 34 0.00367619 Page 2

. 36 35 37 0.00381518 0.00368646 0.00389187 38 0.00417945 39 0.00420136 40 0.00430087 41 0.00432515 42 0.00457822 43 0.00490158 44 0.00516104 45 0.00540644 46 0.00572278 47 0.0058819 48 0.0064513 49 0.00720859 50 0.00735238 51 0.00860174 52 0.00980317 53 0.0108129 54 0.0129026 55 0.0216258 Sen's Estimator (Median Q) is 0.0030894 Tied Group Value Members 1 0 7 Time Period Observations

. 12/1/2005) 1/1/2006 1

1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 798 B=0 C =210 D=0 E = 42 F=0 a = 2970 b = 8910 c = 220 Group Variance = 120.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 18.0684 M1 = (55 - 18.0684)/2.0 = 18.4658

. M2 = (55 + 18.0684)/2.0 + 1 = 37.5342 Lower limit is 0 = Q(18)

Upper limit is 0.00417945 = Q(38) 0 < 0 < 0.00417945 indicating no trend in data.

Page 3

TEDE Time-Series Graph of MW-108 0.025 0.02 .

C_

E 0.0 C

c co c

0) 0.01 0.005 00 -T Co U) CDD(

to0 CDCC)C)C C 0 C)Q (CD (NN Sample Date K

Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-108 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0196702 U (1/1/2006 a) 0.0157592 U (12/1/2005 a) (0.0196702 - 0.0157592)/(2 - 1) 0.00391104 ND<0 U (2/1/2006 a) 0.0157592 U (12/1/2005 a) (0 - 0.0157592)/(3 - 1) -0.0078796 ND<0 U (3/1/2006 a) 0.0157592 U (12/1/2005 a) (0 - 0.0157592)/(4 - 1) -0.00525307 0.0139571 U (4/1/2006 a) 0.0157592 U (12/1/2005 a) (0.0139571 - 0.0157592)/(5 - 1) -0.000450537 ND<0 U (6/1/2006 a) 0.0157592 U (12/1/2005 a) (0 - 0.0157592)/(6 - 1) -0.00315184 0.0202837 U (9/1/2006 a) 0.0157592 U (12/1/2005 a) (0.0202837 - 0.0157592)/(7 - 1) 0.00075409 ND<O U (12/1/2006 a) 0.0157592 U (12/1/2005 a) (0 - 0.0157592)/(8 - 1) -0.00225131 ND<0 U (3/5/2007 a) 0.0157592 U (12/1/2005 a) (0 - 0.0157592)/(9 - 1) -0.0019699 ND<0 U (6/6/2007 a) 0.0157592 U (12/1/2005 a) (0 - 0.0157592)/(10 - 1) -0.00175102 ND<0 U (2/1/2006 a) 0.0196702 U (1/1/2006 a) (0 - 0.0196702)/(3 - 2) -0.0196702 ND<0 U (3/1/2006 a) 0.0196702 U (1/1/2006 a) (0 - 0.0196702)/(4 - 2) -0.00983512 0.0139571 U (4/1/2006 a) 0.0196702 U (1/1/2006 a) (0.0139571 - 0.0196702)/(5 - 2) -0.0019044 ND<0 U (6/1/2006 a) 0.0196702 U (1/1/2006 a) (0 - 0.0196702)/(6 - 2) -0.00491756 0.0202837 U (9/1/2006 a) 0.0196702 U (1/1/2006 a) (0.0202837 - 0.0196702)/(7 - 2) 0.000122699 ND<0 U (12/1/2006 a) 0.0196702 U (1/1/2006 a) (0 - 0.0196702)/(8 - 2) -0.00327837 ND<0 U (3/5/2007 a) 0.0196702 U (1/1/2006 a) (0 - 0.0196702)/(9 - 2) -0.00281003 ND<0 U (6/6/2007 a) 0.0196702 U (1/1/2006 a) (0 - 0.0196702)/(10 - 2) -0.00245878 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 0.0139571 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0.0139571 - 0)/(5 - 3) 0.00697853 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 0.0202837 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0.0202837 - 0)/(7 - 3) 0.00507094 ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(8 - 3) 0 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(9 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 0.0139571 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0.0139571 - 0)/(5 - 4) 0.0139571 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 0.0202837 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0.0202837 - 0)/(7 - 4) 0.00676125 ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4) 0 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/1/2006 a) 0.0139571 U (4/1/2006 a) (0 - 0.0139571)/(6 - 5) -0.0139571 0.0202837 U (9/1/2006 a) 0.0139571 U (4/1/2006 a) (0.0202837 - 0.0139571)/(7 - 5) 0.00316334 ND<0 U (12/1/2006 a) 0.0139571 U (4/1/2006 a) (0 - 0.0139571)/(8 - 5) -0.00465235 ND<0 U (3/5/2007 a) 0.0139571 U (4/1/2006 a) (0 - 0.0139571)/(9 - 5) -0.00348926 ND<0 U (6/6/2007 a) 0.0139571 U (4/1/2006 a) (0 - 0.0139571)/(10 - 5) -0.00279141 0.0202837 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0.0202837 - 0)/(7 - 6) 0.0202837 ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(8 - 6) 0 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0- 0)/(10- 6) 0 ND<0 U (12/1/2006 a) 0.0202837 U (9/1/2006 a) (0 - 0.0202837)/(8 - 7) -0.0202837 ND<0 U (3/5/2007 a) 0.0202837 U (9/1/2006 a) (0 - 0.0202837)/(9 - 7) -0.0101419 Page 1

ND<O U (6/6/2007 a) 0.0202837 U (9/1/2006 a) (0 - 0.0202837)/(10 - 7) -0.00676125 ND<0 U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(1 0- 9) 0 Number of Q values = 45 Ordered Q Values n a 1 -0.0202837 2 -0.0196702 3 -0.0139571 4 -0.0101419 5 -0.00983512 6 -0.0078796 7 -0.00676125 8 -0.00525307 9 -0.00491756 10 -0.00465235 11 -0.00348926 12 -0.00327837 13 -0.00315184 14 -0.00281003 15 -0.00279141 16 -0.00245878 17 -0.00225131 18 -0.0019699 19 -0.0019044 20 -0.00175102 21 -0.000450537 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0.000122699 38 0.00075409 39 0.00316334 40 0.00391104 41 0.00507094 42 0.00676125 43 0.00697853 44 0.0139571 45 0.0202837 Page 2

Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 6 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A =510 B=0 C = 120 D=0 E = 30 F=0 a = 2250 b = 6480 c = 180 Group Variance = 96.6667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 16.1721 M1 = (45 - 16.1721)/2.0 = 14.414 M2 = (45 + 16.1721)/2.0 + 1 = 31.586 Lower limit is -0.00281003 = Q(14)

Upper limit is 0 = Q(32)

-0.00281003 < 0 < 0 indicating no trend in data.

Page 3

TEDE 0.

Time-Series Graph of MW-109D A I.l~

E 4 0.1 0

0 C:

00 u

I A A~I U, U;,.J I] I I I CD 0 0C.o C,-

U) 0 0 co 0C,D 0 0 0 C.-

(0D 0 0 (N 0 0 0

0. 0 (N (N 0 (N

(ND C> (N iz Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-109D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a 0.118865 U (1/1/2006 a) 0.113113 U (12/1/2005 a) (0.118865 - 0.113113)/(2 - 1) 0.00575153 0.109279 U (2/1/2006 a) 0.113113 U (12/1/2005 a) (0.109279 - 0.113113)/(3 - 1) -0.00191718 0.0970092 U (3/1/2006 a) 0.113113 U (12/1/2005 a) (0.0970092 - 0.113113)/(4 - 1) -0.0053681 0.103911 U (4/1/2006 a) 0.113113 U (12/1/2005 a) (0.103911 - 0.113113)/(5 - 1) -0.00230061 0.0993098 U (6/1/2006 a) 0.113113 U (12/1/2005 a) (0.0993098 - 0.113113)/(6 - 1) -0.00276074 0.0678681 U (9/1/2006 a) 0.113113 U (12/1/2005 a) (0.0678681 - 0.113113)/(7 - 1) -0.0075409 0.071319 U (12/1/2006 a) 0.113113 U (12/1/2005 a) (0.071319 - 0.113113)/(8 - 1) -0.00597064 0.068635 U (3/5/2007 a) 0.113113 U (12/1/2005 a) (0.068635 - 0.113113)/(9 - 1) -0.00555982 0.0674847 U (6/6/2007 a) 0.113113 U (12/1/2005 a) (0.0674847 - 0.113113)/(10 - 1) -0.00506987 0.109279 U (2/1/2006 a) 0.118865 U (1/1/2006 a) (0.109279 - 0.118865)/(3 - 2) -0.00958589 0.0970092 U (3/1/2006 a) 0.118865 U (1/1/2006 a) (0.0970092 - 0.118865)/(4 - 2) -0.0109279 0.103911 U (4/1/2006 a) 0.118865 U (1/1/2006 a) (0.103911 - 0.118865)/(5- 2) -0.00498466 0.0993098 U (6/1/2006 a) 0.118865 U (1/1/2006 a) (0.0993098 - 0.118865)/(6 - 2) -0.0048888 0.0678681 U (9/1/2006 a) 0.118865 U (1/1/2006 a) (0.0678681 - 0.118865)/(7 - 2) -0.0101994 0.071319 U (12/1/2006 a) 0.118865 U (1/1/2006 a) (0.071319 - 0.118865)/(8 - 2) -0.00792434 0.068635 U (3/5/2007 a) 0.118865 U (1/1/2006 a) (0.068635 - 0.118865)/(9 - 2) -0.00717572 0.0674847 U (6/6/2007 a) 0.118865 U (1/1/2006 a) (0.0674847 - 0.118865)/(10 - 2) -0.00642255 0.0970092 U (3/1/2006 a) 0.109279 U (2/1/2006 a) (0.0970092 - 0.109279)/(4 - 3) -0.0122699 0.103911 U (4/1/2006 a) 0.109279 U (2/1/2006 a) (0.103911 - 0.109279)/(5 - 3) -0.00268405 0.0993098 U (6/1/2006 a) 0.109279 U (2/1/2006 a) (0.0993098 - 0.109279)/(6 - 3) -0.00332311 0.0678681 U (9/1/2006 a) 0.109279 U (2/1/2006 a) (0.0678681 - 0.109279)/(7 - 3) -0.0103528 0.071319 U (12/1/2006 a) 0.109279 U (2/1/2006 a) (0.071319 - 0.109279)/(8 - 3) -0.00759202 0.068635 U (3/5/2007 a) 0.109279 U (2/1/2006 a) (0.068635 - 0.109279)/(9 - 3) -0.00677403 0.0674847 U (6/6/2007 a) 0.109279 U (2/1/2006 a) (0.0674847 - 0.109279)/(10 - 3) -0.00597064 0.103911 U (4/1/2006 a) 0.0970092 U (3/1/2006 a) (0.103911 - 0.0970092)/(5 - 4) 0.00690184 0.0993098 U (6/1/2006 a) 0.0970092 U (3/1/2006 a) (0.0993098 - 0.0970092)/(6- 4) 0.00115031 0.0678681 U (9/1/2006 a) 0.0970092 U (3/1/2006 a) (0.0678681 - 0.0970092)/(7 - 4) -0.0097137 0.071319 U (12/1/2006 a) 0.0970092 U (3/1/2006 a) (0.071319 - 0.0970092)/(8 - 4) -0.00642255 0.068635 U (3/5/2007 a) 0.0970092 U (3/1/2006 a) (0.068635 - 0.0970092)/(9 - 4) -0.00567485 0.0674847 U (6/6/2007 a) 0.0970092 U (3/1/2006 a) (0.0674847 - 0.0970092)/(10 - 4) -0.00492076 0.0993098 U (6/1/2006 a) 0.103911 U (4/1/2006 a) (0.0993098 - 0.103911)/(6 - 5) -0.00460123 0.0678681 U (9/1/2006 a) 0.103911 U (4/1/2006 a) (0.0678681 - 0.103911)/(7 - 5) -0.0180215 0.071319 U (12/1/2006 a) 0.103911 U (4/1/2006 a) (0.071319 - 0.103911)/(8 - 5) -0.010864 0.068635 U (3/5/2007 a) 0.103911 U (4/1/2006 a) (0.068635 - 0.103911)/(9- 5) -0.00881902 0.0674847 U (6/6/2007 a) 0.103911 U (4/1/2006 a) (0.0674847 - 0.103911)/(10 - 5) -0.00728528 0.0678681 U (9/1/2006 a) 0.0993098 U (6/1/2006 a) (0.0678681 - 0.0993098)/(7 - 6) -0.0314417 0.071319 U (12/1/2006 a) 0.0993098 U (6/1/2006 a) (0.071319 - 0.0993098)/(8 - 6) -0.0139954 0.068635 U (3/5/2007 a) 0.0993098 U (6/1/2006 a) (0.068635 - 0.0993098)/(9 - 6) -0.0102249 0.0674847 U (6/6/2007 a) 0.0993098 U (6/1/2006 a) (0.0674847 - 0.0993098)/(10 - 6) -0.00795629 0.071319 U (12/1/2006 a) 0.0678681 U (9/1/2006 a) (0.071319 - 0.0678681)/(8- 7) 0.00345092 0.068635 U (3/5/2007 a) 0.0678681 U (9/1/2006 a) (0.068635 - 0.0678681)/(9 - 7) 0.000383436 Page 1

0.0674847 U (6/6/2007 a) 0.0678681 U (9/11/2006 a) (0.0674847 - 0.0678681)/(10 - 7) -0.000127812 0.068635 U (3/5/2007 a) 0.071319 U (12/1/2006 a) (0.068635 - 0.071319)/(9 - 8) -0.00268405 0.0674847 U (6/6/2007 a) 0.071319 U (12/1/2006 a) (0.0674847 - 0.071319)/(10 - 8) -0.00191718 0.0674847 U (6/6/2007 a) 0.068635 U (3/5/2007 a) (0.0674847 - 0.068635)/(10 - 9) -0.00115031 Number of Q values = 45 Ordered Q Values n Q 1 -0.0314417 2 -0.0180215 3 -0.0139954 4 -0.0122699 5 -0.0109279 6 -0.010864 7 -0.0103528 8 -0.0102249 9 -0.0101994 10 -0.0097137 11 -0.00958589 12 -0.00881902 13 -0.00795629 14 -0.00792434 15 -0.00759202 16 -0.0075409 17 -0.00728528 18 -0.00717572 19 -0.00677403 20 -0.00642255 21 -0.00642255 22 -0.00597064 23 -0.00597064 24 -0.00567485 25 -0.00555982 26 -0.0053681 27 -0.00506987 28 -0.00498466 29 -0.00492076 30 -0.0048888 31 -0.00460123 32 -0.00332311 33 -0.00276074 34 -0.00268405 35 -0.00268405 36 -0.00230061 37 -0.00191718 38 -0.00191718 39 -0.00115031 40 -0.000127812 41 0.000383436 42 0.00115031 43 0.00345092 44 0.00575153 45 0.00690184 Page 2

Sen's Estimator (Median Q) is -0.00597064 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

.M1 C = 18.39

= (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.00795629 = Q(13)

Upper limit is -0.00276074 = Q(33)

-0.00276074 < 0 indicating a downward trend in data.

Page 3

TEDE E

0 t-O)

U) 0 o U to (00 N-0 C, o0 0C( (D 0 0 0 N 0NC 0 (NI U)

U)

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-109S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.022316 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0.022316 - 0)/(2 - 1) 0.022316 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 0.0178681 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0.0178681 - 0)/(4 - 1) 0.00595603 0.0429448 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0.0429448 - 0)/(5 - 1) 0.0107362 0.0555982 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0.0555982 - 0)/(6 - 1) 0.0111196 0.0234279 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0.0234279 - 0)/(7 - 1) 0.00390465 0.0149923 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0.0149923 - 0)/(8 - 1) 0.00214176 0.161076 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0.161076 - 0)/(9 - 1) 0.0201345 0.0544479 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0.0544479 - 0)/(10 - 1) 0.00604976 ND<0 U (2/1/2006 a) 0.022316 U (1/1/2006 a) (0 - 0.022316)/(3 - 2) -0.022316 0.0178681 U (3/1/2006 a) 0.022316 U (1/1/2006 a) (0.0178681 - 0.022316)/(4 - 2) -0.00222393 0.0429448 U (4/1/2006 a) 0.022316 U (1/1/2006 a) (0.0429448 - 0.022316)/(5 - 2) 0.00687628 0.0555982 U (6/1/2006 a) 0.022316 U (1/1/2006 a) (0.0555982 - 0.022316)/(6 - 2) 0.00832055 0.0234279 U (9/1/2006 a) 0.022316 U (1/1/2006 a) (0.0234279 - 0.022316)/(7 - 2) 0.000222393 0.0149923 U (12/1/2006 a) 0.022316 U (1/1/2006 a) (0.0149923 - 0.022316)/(8 - 2) -0.0012206 0.161076 U (3/5/2007 a) 0.022316 U (1/1/2006 a) (0.161076 - 0.022316)/(9 - 2) 0.0198229 0.0544479 U (6/6/2007 a) 0.022316 U (1/1/2006 a) (0.0544479 - 0.022316)/(10 - 2) 0.00401649 0.0178681 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0.0178681 - 0)/(4 - 3) 0.0178681 0.0429448 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0.0429448 - 0)/(5 - 3) 0.0214724 0.0555982 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0.0555982 - 0)/(6 - 3) 0.0185327 0.0234279 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0.0234279 - 0)/(7 - 3) 0.00585698 0.0149923 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0.0149923 - 0)/(8 - 3) 0.00299847 0.161076 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0.161076 - 0)/(9 - 3) 0.026846 0.0544479 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0.0544479 - 0)/(10 - 3) 0.00777826 0.0429448 U (4/1/2006 a) 0.0178681 U (3/1/2006 a) (0.0429448 - 0.0178681)/(5 - 4) 0.0250767 0.0555982 U (6/1/2006 a) 0.0178681 U (3/1/2006 a) (0.0555982 - 0.0178681)/(6 - 4) 0.018865 0.0234279 U (9/1/2006 a) 0.0178681 U (3/1/2006 a) (0.0234279 - 0.0178681)/(7 - 4) 0.00185327 0.0149923 U (12/1/2006 a) 0.0178681 U (3/1/2006 a) (0.0149923 - 0.0178681)/(8 - 4) -0.000718942 0.161076 U (3/5/2007 a) 0.0178681 U (3/1/2006 a) (0.161076 - 0.0178681)/(9 - 4) 0.0286416 0.0544479 U (6/6/2007 a) 0.0178681 U (3/1/2006 a) (0.0544479 - 0.0178681)/(10 - 4) 0.00609663 0.0555982 U (6/1/2006 a) 0.0429448 U (4/1/2006 a) (0.0555982 - 0.0429448)/(6 - 5) 0.0126534 0.0234279 U (9/1/2006 a) 0.0429448 U (4/1/2006 a) (0.0234279 - 0.0429448)/(7 - 5) -0.00975844 0.0149923 U (12/1/2006 a) 0.0429448 U (4/1/2006 a) (0.0149923 - 0.0429448)/(8 - 5) -0.00931748 0.161076 U (3/5/2007 a) 0.0429448 U (4/1/2006 a) (0.161076 - 0.0429448)/(9 - 5) 0.0295329 0.0544479 U (6/6/2007 a) 0.0429448 U (4/1/2006 a) (0.0544479 - 0.0429448)/(10 - 5) 0.00230061 0.0234279 U (9/1/2006 a) 0.0555982 U (6/1/2006 a) (0.0234279 - 0.0555982)/(7 - 6) -0.0321702 0.0149923 U (12/1/2006 a) 0.0555982 U (6/1/2006 a) (0.0149923 - 0.0555982)/(8 - 6) -0.0203029 0.161076 U (3/5/2007 a) 0.0555982 U (6/1/2006 a) (0.161076 - 0.0555982)/(9- 6) 0.0351594 0.0544479 U (6/6/2007 a) 0.0555982 U (6/1/2006 a) (0.0544479 - 0.0555982)/(10 - 6) -0.000287577 0.0149923 U (12/1/2006 a) 0.0234279 U (9/1/2006 a) (0.0149923- 0.0234279)/(8- 7) -0.00843558 0.161076 U (3/5/2007 a) 0.0234279 U (9/1/2006 a) (0.161076 - 0.0234279)/(9 - 7) 0.0688242 Page 1

0.0544479 U (6/6/2007 a) 0.0234279 U (9/1/2006 a) (0.0544479 - 0.0234279)/(10 - 7) 0.01034

0. 161076 U (3/5/2007 a) 0.0149923 U (12/1/2006 a) (0.161076 - 0.0149923)/(9 - 8) 0.146084 0.0544479 U (6/6/2007 a) 0.0149923 U (12/1/2006 a) (0.0544479 - 0.0149923)/(10 - 8) 0.0197278 0.0544479 U (6/6/2007 a) 0.161076 U (3/5/2007 a) (0.0544479 - 0.161076)/(10- 9) -0.106628 Number of Q values = 45 Ordered 0 Values n Q 1 -0.106628 2 -0.0321702 3 -0.022316 4 -0.0203029 5 -0.00975844 6 -0.00931748 7 -0.00843558 8 -0.00222393 9 -0.0012206 10 -0.000718942 11 -0.000287577 12 0 13 0.000222393 14 0.00185327 O 15 16 17 0.00214176 0.00230061 0.00299847 18 0.00390465 19 0.00401649 20 0.00585698 21 0.00595603 22 0.00604976 23 0.00609663 24 0.00687628 25 0.00777826 26 0.00832055 27 0.01034 28 0.0107362 29 0.0111196 30 0.0126534 31 0.0178681 32 0.0185327 33 0.018865 34 0.0197278 35 0.0198229 36 0.0201345 37 0.0214724 38 0.022316 39 0.0250767 40 0.026846 41 0.0286416

. 42 43 44 0.0295329 0.0351594 0.0688242 45 0.146084 Page 2

. Sen's Estimator (Median Q) is 0.00609663 Tied Group Value Members 1 0 2 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=18 B=0 C=0 D=0 E=2 F=0 a = 2250 b = 6480 c= 180

Group Variance = 124 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 18.3163 M1 = (45 - 18.3163)/2.0 = 13.3418 M2 = (45 + 18.3163)/2.0 + 1 = 32.6582 Lower limit is 0.000222393 = Q(13)

Upper limit is 0.018865 = Q(33) 0.000222393 > 0 indicating an upward trend in data.

Page 3

TEDE Time-Series Graph of MW-110D 0.4 0.35 0.25 E

0.2 0 o.15 0.1 0.05 0.

aDt )CD C, Dr oIf) O Co C) 0 C, 04 Q 04 Q0C 0 1 (NO oD NN Q a N P

C( i:N se Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-11OD Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a 0.295245 U (1/1/2006 a) 0.307132 U (12/1/2005 a) (0.295245 - 0.307132)/(2 - 1) -0.0118865 0.28681 U (2/1/2006 a) 0.307132 U (12/1/2005 a) (0.28681 - 0.307132)/(3 - 1) -0.010161 0.215874 U (3/1/2006 a) 0.307132 U (12/1/2005 a) (0.215874 - 0.307132)/(4 - 1) -0.0304192 0.306748 U (4/1/2006 a) 0.307132 U (12/1/2005 a) (0.306748 - 0.307132)/(5 - 1) -9.5859e-005 0.290261 U (6/1/2006 a) 0.307132 U (12/1/2005 a) (0.290261 - 0.307132)/(6 - 1) -0.00337423 0.105445 U (9/1/2006 a) 0.307132 U (12/1/2005 a) (0.105445 - 0.307132)/(7 - 1) -0.0336145 0.179831 U (10/31/2006 a) 0.307132 U (12/1/2005 a) (0.179831 - 0.307132)/(8 - 1) -0.0181858 0.1875 U (12/1/2006 a) 0.307132 U (12/1/2005 a) (0.1875 - 0.307132)/(9 - 1) -0.014954 0.170245 U (3/5/2007 a) 0.307132 U (12/1/2005 a) (0.170245 - 0.307132)/(10 - 1) -0.0152096 0.149923 U (4/1/2007 a) 0.307132 U (12/1/2005. a) (0.149923 - 0.307132)/(11 - 1) -0.0157209 0.188267 U (6/6/2007 a) 0.307132 U (12/1/2005 a) (0.188267 - 0.307132)/(12 - 1) -0.0108059 0.28681 U (2/1/2006 a) 0.295245 U (1/1/2006 a) (0.28681 - 0.295245)/(3 - 2) -0.00843558 0.215874 U (3/1/2006 a) 0.295245 U (1/1/2006 a) (0.215874 - 0.295245)/(4 - 2) -0.0396856 0.306748 U (4/1/2006 a) 0.295245 U (1/1/2006 a) (0.306748 - 0.295245)/(5 - 2) 0.00383436 0.290261 U (6/1/2006 a) 0.295245 U (1/1/2006 a) (0.290261 - 0.295245)/(6 - 2) -0.00124617

. 0.105445 U (9/1/2006 a) 0.179831 U (10/31/2006 a)

0. 1875 U (12/1/2006 a) 0.295245 0.295245 0.295245 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.105445 - 0.295245)/(7 - 2)

(0.179831 - 0.295245)/(8 - 2)

(0.1875 - 0.295245)/(9 - 2)

-0.0379601

-0.0192357

-0.0153922 0.170245 U (3/5/2007 a) 0.295245 U (1/1/2006 a) (0.170245 - 0.295245)/(10- 2) -0.015625 0.149923 U (4/1/2007 a) 0.295245 U (1/1/2006 a) (0.149923 - 0.295245)/(11 - 2) -0.0161469 0.188267 U (6/6/2007 a) 0.295245 U (1/1/2006 a) (0.188267 - 0.295245)/(12- 2) -0.0106979 0.215874 U (3/1/2006 a) 0.28681 U (2/1/2006 a) (0.215874 - 0.28681)/(4- 3) -0.0709356 0.306748 U (4/1/2006 a) 0.28681 U (2/1/2006 a) (0.306748 - 0.28681)/(5 - 3) 0.00996933 0.290261 U (6/1/2006 a) 0.28681 U (2/1/2006 a) (0.290261 - 0.28681)/(6 - 3) 0.00115031 0.105445 U (9/1/2006 a) 0.28681 U (2/1/2006 a) (0.105445 - 0.28681)/(7 - 3) -0.0453413 0.179831 U (10/31/2006 a) 0.28681 U (2/1/2006 a) (0.179831 - 0.28681)/(8 - 3) -0.0213957 0.1875 U (12/1/2006 a) 0.28681 U (2/1/2006 a) (0.1875 - 0.28681)/(9 - 3) -0.0165516 0.170245 U (3/5/2007 a) 0.28681 U (2/1/2006 a) (0.170245 - 0.28681)/(10 - 3) -0.0166521 0.149923 U (4/1/2007 a) 0.28681 U (2/1/2006 a) (0.149923 - 0.28681)/(11 - 3) -0.0171108 0.188267 U (6/6/2007 a) 0.28681 U (2/1/2006 a) (0.188267 - 0.28681)/(12 - 3) -0.0109492 0.306748 U (4/1/2006 a) 0.215874 U (3/1/2006 a) (0.306748 - 0.215874)/(5 - 4) 0.0908742 0.290261 U (6/1/2006 a) 0.215874 U (3/1/2006 a) (0.290261 - 0.215874)/(6 - 4) 0.0371933 0.105445 U (9/1/2006 a) 0.215874 U (3/1/2006 a) (0.105445 - 0.215874)/(7 - 4) -0.0368098 0.179831 U (10/31/2006 a) 0.215874 U (3/1/2006 a) (0.179831 - 0.215874)/(8 - 4) -0.00901074 0.1875 U (12/1/2006 a) 0.215874 U (3/1/2006 a) (0.1875 - 0.215874)/(9 - 4) -0.00567485

0. 170245 U (3/5/2007 a) 0.215874 U (3/1/2006 a) (0.170245 - 0.215874)/(10 - 4) -0.00760481 0.149923 U (4/1/2007 a) 0.215874 U (3/1/2006 a) (0.149923 - 0.215874)/(11 - 4) -0.00942156 0.188267 U (6/6/2007 a) 0.215874 U (3/1/2006 a) (0.188267 - 0.215874)/(12- 4) -0.00345092 0.290261 U (6/1/2006 a) 0.306748 U (4/1/2006 a) (0.290261 - 0.306748)/(6 - 5) -0.0164877

. 0.105445 0.179831 0.1875 U U (9/1/2006 a)

U (10/31/2006 a)

(12/1/2006 a) 0.306748 0.306748 0.306748 U (4/1/2006 a)

U (4/1/2006 a)

(0.105445 - 0.306748)/(7 - 5)

(0.179831 - 0.306748)/(8 - 5)

(0.1875 - 0.306748)/(9 - 5)

-0.100652

-0.0423057

-0.0298121 0.170245 U (3/5/2007 a) 0.306748 U (4/1/2006 a) (0.170245 - 0.306748)/(10 - 5) -0.0273006 Page 1

.0. 0.188267 149923 UU (6/6/2007 (4/1/2007 a) 0.306748 U (4/1/2006 a) 0.306748 U (4/1/2006 a)

(0.149923 - 0.306748)/(11 - 5)

(0.188267 - 0.306748)/(12- 5)

-0.0261375

-0.0169259 0.105445 U (9/1/2006 a) 0.290261 U (6/1/2006 a) (0.105445 - 0.290261)/(7 - 6) -0.184816 0.179831 U (10/31/2006 a) 0.290261 U (6/1/2006 a) (0.179831 - 0.290261)/(8 - 6) -0.0552147 0.1875 U (12/1/2006 a) 0.290261 U (6/1/2006 a) (0.1875 - 0.290261)/(9- 6) -0.0342536 0.170245 U (3/5/2007 a) 0.290261 U (6/1/2006 a) (0.170245 - 0.290261)/(10 - 6) -0.0300038 0.149923 U (4/1/2007 a) 0.290261 U (6/1/2006 a) (0.149923 - 0.290261)/(11 - 6) -0.0280675

0. 188267 U (6/6/2007 a) 0.290261 U (6/1/2006 a) (0.188267 - 0.290261)/(12- 6) -0.016999 0.179831 U (10/31/2006 a) 0.105445 U (9/1/2006 a) (0.179831 - 0.105445)/(8 - 7) 0.0743865 0.1875 U (12/1/2006 a) 0.105445 U (9/1/2006 a) (0.1875 - 0.105445)/(9 - 7) 0.0410276 0.170245 U (3/5/2007 a) 0.105445 U (9/1/2006 a) (0.170245 - 0.105445)/(10 - 7) 0.0216002 0.149923 U (4/1/2007 a) 0.105445 U (9/1/2006 a) (0.149923 - 0.105445)/(11 - 7) 0.0111196 0.188267 U (6/6/2007 a) 0.105445 U (9/1/2006 a) (0.188267 - 0.105445)/(12- 7) 0.0165644 0.1875 U (12/1/2006 a) 0.179831 U (10/31/2006 a) (0.1875 - 0.179831)/(9 - 8) 0.00766871 0.170245 U (3/5/2007 a) 0.179831 U (10/31/2006 a) (0.170245 - 0.179831)/(10 - 8) -0.00479294 0.149923 U (4/1/2007 a) 0.179831 U (10/31/2006 a) (0.149923 - 0.179831)/(11 - 8) -0.00996933 0.188267 U (6/6/2007 a) 0.179831 U (10/31/2006 a) (0.188267 - 0.179831)/(12 - 8) 0.0021089

0. 170245 U (3/5/2007 a) 0.1875 U (12/1/2006 a) (0.170245 - 0.1875)/(10- 9) -0.0172546 0.149923 U (4/1/2007 a) 0.1875 U (12/1/2006 a) (0.149923 - 0.1875)/(11 - 9) -0.0187883

0. 188267 U (6/6/2007 a) 0.1875 U (12/1/2006 a) (0.188267 - 0.1875)/(12 - 9) 0.000255624 0.170245 U (3/5/2007 a)

0. 149923 U (4/1/2007 a) (0.149923 - 0.170245)/(11 - 10) -0.0203221 0.188267 U (6/6/2007 a) 0.170245 U (3/5/2007 a) (0.188267 - 0.170245)/(12- 10) 0.00901074

0. 188267 U (6/6/2007 a) 0.149923 U (4/1/2007 a) (0.188267 - 0.149923)/(12 - 11) 0.0383436 Number of Q values = 66 Ordered o Values n Q 1 -0.184816 2 -0.100652 3 -0.0709356 4 -0.0552147 5 -0.0453413 6 -0.0423057 7 -0.0396856 8 -0.0379601 9 -0.0368098 10 -0.0342536 11 -0.0336145 12 -0.0304192 13 -0.0300038 14 -0.0298121 15 -0.0280675 16 -0.0273006 17 -0.0261375 18 -0.0213957 19 -0.0203221 20 -0.0192357 21 -0.0187883 22 -0.0181858 Page 2

24 23 -0.0171108

-0.0172546 25 -0.016999 26 -0.0169259 27 -0.0166521 28 -0.0165516 29 -0.0164877 30 -0.0161469 31 -0.0157209 32 -0.015625 33 -0.0153922 34 -0.0152096 35 -0.014954 36 -0.0118865 37 -0.0109492 38 -0.0108059 39 -0.0106979 40 -0.010161 41 -0.00996933 42 -0.00942156 43 -0.00901074 44 -0.00843558 45 -0.00760481 46 -0.00567485 47 -0.00479294 48 -0.00345092 49 -0.00337423 50 -0.00124617 51 -9.5859e-005 52 0.000255624 53 0.00115031 54 0.0021089 55 0.00383436 56 0.00766871 57 0.00901074 58 0.00996933 59 0.0111196 60 0.0165644 61 0.0216002 62 0.0371933 63 0.0383436 64 0.0410276 65 0.0743865 66 0.0908742 Sen's Estimator (Median 0) is -0.0153009 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 Page 3

. 6/6/2007 4/1/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 3828 b = 11880 c = 264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is -0.0187883 = 0(21)

Upper limit is -0.00567485 = Q(46)

-0.00567485 < 0 indicating a downward trend in data.

Page 4

TEDE

0. n71 VI Time-Series GraDh of MW-11OS A3n~I --

-a A ArI V . t*J*,J F

nV.V"t

AI

/

I I E

L CD ^,.

0.HAl 4

K

/ / I VI I 0

C)

^^

A3no.'

0.01 (I I I I I A

(0 0C)

L) {,0 0 C-.

0 0 0 0 0 0 0 C) 0 0 1-0 0 CN 0 (N

Q 0

(,- C,) C',

(S.' (NC' ZF5 Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-11OS Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 0.0239647 U (1/1/2006 a) 0.0359562 U (12/1/2005 a) (0.0239647 - 0.0359562)/(2 - 1) -0.0119915 0.0233129 U (2/1/2006 a) 0.0359562 U (12/1/2005 a) (0.0233129 - 0.0359562)/(3 - 1) -0.00632165 0.0590491 U (3/1/2006 a) 0.0359562 U (12/1/2005 a) (0.0590491 - 0.0359562)/(4 - 1) 0.00769763 0.0609663 U (4/1/2006 a) 0.0359562 U (12/1/2005 a) (0.0609663 - 0.0359562)/(5 - 1) 0.00625252 0.0381902 U (6/1/2006 a) 0.0359562 U (12/1/2005 a) (0.0381902 - 0.0359562)/(6 - 1) 0.000446802 0.0502301 U (9/1/2006 a) 0.0359562 U (12/1/2005 a) (0.0502301 - 0.0359562)/(7 - 1) 0.00237898 ND<O U (10/31/2006 a) 0.0359562 U (12/1/2005 a) (0 - 0.0359562)/(8 - 1) -0.0051366 0.0417945 U (12/1/2006 a) 0.0359562 U (12/1/2005 a) (0.0417945 - 0.0359562)/(9 - 1) 0.000729788 0.0367715 U (3/5/2007 a) 0.0359562 U (12/1/2005 a) (0.0367715 - 0.0359562)/(10 - 1) 9.05886e-005 0.047546 U (4/1/2007 a) 0.0-359562 U (12/1/2005 a) (0.047546 - 0.0359562)/(11 - 1) 0.00115898 0.0352761 U (6/6/2007 a) 0.0359562 U (12/1/2005 a) (0.0352761 - 0.0359562)/(12 - 1) -6.18274e-005 0.0233129 U (2/1/2006 a) 0.0239647 U (1/1/2006 a) (0.0233129 - 0.0239647)/(3 - 2) -0.000651841 0.0590491 U (3/1/2006 a) 0.0239647 U (1/1/2006 a) (0.0590491 - 0.0239647)/(4 - 2) 0.0175422 0.0609663 U (4/1/2006 a) 0.0239647 U (1/1/2006 a) (0.0609663 - 0.0239647)/(5 - 2) 0.0123338 0.0381902 U (6/1/2006 a) 0.0239647 U (1/1/2006 a) (0.0381902 - 0.0239647)/(6 - 2) 0.00355637

. 0.0502301 U (9/1/2006 a)

ND<O U (10/31/2006 a) 0.0417945 U (12/1/2006 a) 0.0239647 0.0239647 0.0239647 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.0502301 - 0.0239647)/(7 - 2)

(0 - 0.0239647)/(8 - 2)

(0.0417945 - 0.0239647)/(9 - 2) 0.00525307

-0.00399412 0.00254711 0.0367715 U (3/5/2007 a) 0.0239647 U (1/1/2006 a) (0.0367715 - 0.0239647)/(10 - 2) 0.00160084 0.047546 U (4/1/2007 a) 0.0239647 U (1/1/2006 a) (0.047546 - 0.0239647)/(11 - 2) 0.00262014 0.0352761 U (6/6/2007 a) 0.0239647 U (1/1/2006 a) (0.0352761 - 0.0239647)/(12 - 2) 0.00113113 0.0590491 U (3/1/2006 a) 0.0233129 U (2/1/2006 a) (0.0590491 - 0.0233129)/(4 - 3) 0.0357362 0.0609663 U (4/1/2006 a) 0.0233129 U (2/1/2006 a) (0.0609663 - 0.0233129)/(5 - 3) 0.0188267 0.0381902 U (6/1/2006 a) 0.0233129 U (2/1/2006 a) (0.0381902 - 0.0233129)/(6 - 3) 0.0049591 0.0502301 U (9/1/2006 a) 0.0233129 U (2/1/2006 a) (0.0502301 - 0.0233129)/(7 - 3) 0.00672929 ND<O U (10/31/2006 a) 0.0233129 U (2/1/2006 a) (0 - 0.0233129)/(8 - 3) -0.00466258 0.0417945 U (12/1/2006 a) 0.0233129 U (2/1/2006 a) (0.0417945 - 0.0233129)/(9 - 3) 0.00308027 0.0367715 U (3/5/2007 a) 0.0233129 U (2/1/2006 a) (0.0367715 - 0.0233129)/(10 - 3) 0.00192266 0.047546 U (4/1/2007 a) 0.0233129 U (2/1/2006 a) (0.047546 - 0.0233129)/(11 - 3) 0.00302914 0.0352761 U (6/6/2007 a) 0.0233129 U (2/1/2006 a) (0.0352761 - 0.0233129)/(12 - 3) 0.00132924 0.0609663 U (4/1/2006 a) 0.0590491 U (3/1/2006 a) (0.0609663 - 0.0590491)/(5 - 4) 0.00191718 0.0381902 U (6/1/2006 a) 0.0590491 U (3/1/2006 a) (0.0381902- 0.0590491)/(6- 4) -0.0104294 0.0502301 U (9/1/2006 a) 0.0590491 U (3/1/2006 a) (0.0502301 - 0.0590491)/(7 - 4) -0.00293967 ND<O U (10/31/2006 a) 0.0590491 U (3/1/2006 a) (0 - 0.0590491)/(8- 4) -0.0147623 0.0417945 U (12/1/2006 a) 0.0590491 U (3/1/2006 a) (0.0417945 - 0.0590491)/(9 - 4) -0.00345092 0.0367715 U (3/5/2007 a) 0.0590491 U (3/1/2006 a) (0.0367715 - 0.0590491)/(10 - 4) -0.00371293 0.047546 U (4/1/2007 a) 0.0590491 U (3/1/2006 a) (0.047546 - 0.0590491)/(11 - 4) -0.0016433 0.0352761 U (6/6/2007 a) 0.0590491 U (3/1/2006 a) (0.0352761 - 0.0590491)/(12 - 4) -0.00297163 0.0381902 U (6/1/2006 a) 0.0609663 U (4/1/2006 a) (0.0381902 - 0.0609663)/(6 - 5) -0.0227761

. 0.0502301 U (9/1/2006 a)

ND<O U (10/31/2006 a) 0.0417945 U (12/1/2006 a) 0.0609663 0.0609663 0.0609663 U (4/1/2006 a)

U (4/1/2006 a)

(0.0502301 - 0.0609663)/(7 - 5)

(0 - 0.0609663)/(8 - 5)

(0.0417945 - 0.0609663)/(9 - 5)

-0.0053681

-0.0203221

-0.00479294 0.0367715 U (3/5/2007 a) 0.0609663 U (4/1/2006 a) (0.0367715 - 0.0609663)/(10 - 5) -0.00483896 Page 1

. 0.047546 UU(4/1/2007 0.0352761 (6/6/2007a)a) 0.0609663 U (4/1/2006 a) 0.0609663 U (4/1/2006 a)

(0.047546 - 0.0609663)/(11 - 5) -0.00223671 (0.0352761 - 0.0609663)/(12 - 5) -0.00367003 0.0502301 U (9/1/2006 a) 0.0381902 U (6/1/2006 a) (0.0502301 - 0.0381902)/(7- 6) 0.0120399 ND<O U (10/31/2006 a) 0.0381902 U (6/1/2006 a) (0 - 0.0381902)/(8 - 6) -0.0190951 0.0417945 U (12/1/2006 a) 0.0381902 U (6/1/2006 a) (0.0417945 - 0.0381902)/(9 - 6) 0.00120143 0.0367715 U (3/5/2007 a) 0.0381902 U (6/1/2006 a) (0.0367715 - 0.0381902)/(10 - 6) -0.000354678 0.047546 U (4/1/2007 a) 0.0381902 U (6/1/2006 a) (0.047546 - 0.0381902)/(11 - 6) 0.00187117 0.0352761 U (6/6/2007 a) 0.0381902 U (6/1/2006 a) (0.0352761 - 0.0381902)/(12 - 6) -0.000485685 ND<0 U (10/31/2006 a) 0.0502301 U (9/1/2006 a) (0 - 0.0502301)/(8 - 7) -0.0502301 0.0417945 U (12/1/2006 a) 0.0502301 U (9/1/2006 a) (0.0417945- 0.0502301)/(9- 7) -0.00421779 0.0367715 U (3/5/2007 a) 0.0502301 U (9/1/2006 a) (0.0367715 - 0.0502301)/(10 - 7) -0.0044862 0.047546 U (4/1/2007 a) 0.0502301 U (9/1/2006 a) (0.047546 - 0.0502301)/(11 - 7) -0.000671012 0.0352761 U (6/6/2007 a) 0.0502301 U (9/1/2006 a) (0.0352761 - 0.0502301)/(12 - 7) -0.0029908 0.0417945 U (12/1/2006 a) ND<0 U (10/31/2006 a) (0.0417945 - 0)/(9- 8) 0.0417945 0.0367715 U (3/5/2007 a) ND<0 U (10/31/2006 a) (0.0367715 - 0)/(10 - 8) 0.0183857 0.047546 U (4/1/2007 a) ND<0 U (10/31/2006 a) (0.047546 - 0)/(11 - 8) 0.0158487 0.0352761 U (6/6/2007 a) ND<0 U (10/31/2006 a) (0.0352761 - 0)/(12 - 8). 0.00881902 0.0367715 U (3/5/2007 a) 0.0417945 U (12/1/2006 a) (0.0367715 - 0.0417945)/(10 - 9) -0.00502301 0.047546 U (4/1/2007 a) 0.0417945 U (12/1/2006 a) (0.047546 - 0.0417945)/(11 - 9) 0.00287577 0.0352761 U (6/6/2007 a) 0.0417945 U (12/1/2006 a) (0.0352761 - 0.0417945)/(12 - 9) -0.0021728 0.0367715 U (3/5/2007 a) 0.047546 U (4/1/2007 a) (0.047546 - 0.0367715)/(11 - 10) 0.0107745 0.0352761 U (6/6/2007 a) 0.0367715 U (3/5/2007 a) (0.0352761 - 0.0367715)/(12 0.000747699 O 0.0352761 U (6/6/2007 a) 0.047546 U (4/1/2007 a) (0.0352761 - 0.047546)/(12 - 11) -0.0122699 Number of Q values = 66 Ordered Q Values n Q 1 -0.0502301 2 -0.0227761 3 -0.0203221 4 -0.0190951 5 -0.0147623 6 -0.0122699 7 -0.0119915 8 -0.0104294 9 -0.00632165 10 -0.0053681 11 -0.0051366 12 -0.00502301 13 -0.00483896 14 -0.00479294 15 -0.00466258 16 -0.0044862 17 -0.00421779 18 -0.00399412

. 19 20 21

-0.00371293

-0.00367003

-0.00345092 22 -0.0029908 Page 2

.23 24 25

-0.00297163

-0.00293967

-0.00223671 26 -0.0021728 27 -0.0016433 28 -0.000747699 29 -0.000671012 30 -0.000651841 31 -0.000485685 32 -0.000354678 33 -6.18274e-005 34 9.05886e-005 35 0.000446802 36 0.000729788 37 0.00113113 38 0.00115898 39 0.00120143 40 0.00132924 41 0.00160084 42 0.00187117 43 0.00191718 44 0.00192266 45 0.00237898 46 0.00254711 47 0.00262014

.50 48 0.00287577 49 0.00302914 0.00308027 51 0.00355637 52 0.0049591 53 0.00525307 54 0.00625252 55 0.00672929 56 0.00769763 57 0.00881902 58 0.0107745 59 0.0120399 60 0.0123338 61 0.01 58487 62 0.01 75422 63 0.01 83857 64 0.0188267 65 0.0357362 66 0.0417945 Sen's Estimator (Median Q) is 1.43806e-005 Time Period Observations 12/1/20051 1/1/20061 2/1/20061 3/1/20061 4/1/20061

.10/31/20061 6/1/20061 9/1/20061 12/1/20061 3/5/20071 Page 3

4/1/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 3828 b = 11880 c = 264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is -0.00345092 = Q(21)

Upper limit is 0.00254711 = 0(46)

-0.00345092 < 0 < 0.00254711 indicating no trend in data.

Page 4

TEDE Time-Series Graph of MW-112 8

61 E

2a-E c

0

.2 CD C.)

0 2

oT0

, o oIo o Io I oI .1 to o 0o 0 0 01-o o 0 0 C* ('1 0 -0 Ce Sample Da Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-112 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 ND<0 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(8 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0- 0)/(9 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (t/1/2006.a) (0 - 0)(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 ND<0 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(8 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(9 - 2) 0

.ND<0 ND<0 U (3/1/2006 a)

U (4/1/2006 a)

ND<0 ND<0 U (2/1/2006 U (2/1/2006 a) a)

(0 - 0)/(4 - 3)

(0 - 0)/(5 - 3) 0 0

ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006 a)" ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(8 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0- 0)/(9 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 ND<0U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 ND<0 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(8 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (12/1/2006 a)

ND<0 U (6/6/2007 a) ND<0 U (9/1/2006 a) (0- 0)/(9 - 7) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 Number of 0 values = 36 Page 1

Ordered Q Values n 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 9 Time Period Observations 12/1/2005 1/1/2006 2/1/2006 3/1/2006 1 4/1/2006 6/1/2006 9/1/2006 12/1/2006 6/6/2007 1 There are 0 time periods with multiple data A = 1656 Page 2

. C = 504 B=0 D=0 E = 72 F=0 a =1656 b = 4536 c = 144 Group Variance = 0 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C=0 M1 - (36- 0)/2.0 = 18 M2 - (36 + 0)/2.0 + 1 = 19 Lower limit is 0 = Q(18)

Upper limit is 0 = 0(19) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE 10 Time-Series Graph of MW-113 8

z6 E

E a 4 c

0 2

(0 co to) 0CD 0C C, C 0 0 0 0C o

('N o

( 00 0C.

(N 0(N 00 C) C m Dt Ce)

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-113 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0- 0)/(2- 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<O U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 ND<0 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0- 0)/(8 - 1) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0- 0)/(10 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 ND<0 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(8 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0- 0)/(10- 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3)

ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3)

ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3)

ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0- 0)/(7- 3)

ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(8 - 3)

ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(9 - 3)

ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0- 0)/(10- 3)

ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4)

ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4)

ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4)

ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4)

ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4)

ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4)

ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5)

ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5)

ND<0 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5)

ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5)

ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0- 0)/(10- 5)

ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6)

ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(8 - 6)

ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6)

ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(10 - 6)

ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0- 0)/(9 - 7) 0 Page 1

ND<O U (6/6/2007 a) ND<O U (9/1/2006 a) (0 - 0)/(10 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) 0 Number of Q values = 45 Ordered Q Values n Q 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0

. 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0 42 0 O 43 0 44 0 45 0 Page 2

' Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 10 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 2250 B=O C = 720 D=0 E = 90 F=0 a = 2250 b = 6480 c = 180 Group Variance = 0 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C=0 M1 = (45 - 0)/2.0 = 22.5 M2 = (45 + 0)/2.0 + 1 = 23.5 Lower limit is 0 = Q(23)

Upper limit is 0 = Q(24) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE 0.2 Time-Series Graph of MW-I 17 0.15 Z..

E 00.1 0

0,-) 0."

C to co C, C) o C 0. 0.0 C, C, (0 C) C'D ,

C> C>

S0 ample D at Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-117 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<0 U (1/1/2006 a) 0.124502 U (12/1/2005 a) (0- 0.124502)/(2 - 1) -0.124502 ND<0 U (2/1/2006 a) 0.124502 U (12/1/2005 a) (0- 0.124502)/(3 - 1) -0.062251 ND<0 U (3/1/2006 a) 0.124502 U (12/1/2005 a) (0- 0.124502)/(4 - 1) -0.0415007 ND<0 U (4/1/2006 a) 0.124502 U (12/1/2005 a) (0- 0.124502)/(5 - 1) -0.0311255 ND<0 U (6/1/2006 a) 0.124502 U (12/1/2005 a) (0- 0.124502)/(6 - 1) -0.0249004 ND<0 U (9/1/2006 a) 0.124502 U (12/1/2005 a) (0- 0.124502)/(7- 1) -0.0207503 ND<0 U (12/1/2006 a) 0.124502 U (12/1/2005 a) (0- 0.124502)/(8 - 1) -0.017786 ND<0 U (3/5/2007 a) 0.124502 U (12/1/2005 a) (0- 0.124502)/(9 - 1) -0.0155627 ND<0 U (6/6/2007 a) 0.124502 U (12/1/2005 a) (0- 0.124502)/(10 - 1) -0.0138336 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 ND<0 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(8 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0- 0)/(9- 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(8 - 3) 0 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(9 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4) 0 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 ND<0 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5) 0 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(10 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0- 0)/(8 - 6) 0 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(10 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<O U (6/6/2007 a) ND<O U (9/1/2006 a) (0- 0)/(10- 7) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) 0 Number of Q values = 45 Ordered Q Values n Q 1 -0.124502 2 -0.062251 3 -0.0415007 4 -0.0311255 5 -0.0249004 6 -0.0207503 7 -0.017786 8 -0.0155627 9 -0.0138336 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 , 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0 42 0 43 0 44 0 45 0 Page 2

. Sen's Estimator (Median 0) is 0 Tied Group Value Members 1 0 9 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 1656 B=0 C = 504 D=0 E = 72 F=0 a = 2250 b = 6480

. c = 180 Group Variance = 33 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 9.44896 M1 = (45 - 9.44896)/2.0 = 17.7755 M2 = (45 + 9.44896)/2.0 + 1 = 28.2245 Lower limit is 0 = Q(18)

Upper limit is 0 = Q(28) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE 0.3 Time-Series Graph of MW118A-3 0.25 0).

E C

0.15 0

c C:

0 0.1 0.05 (0 (0 O (.0 (0 C, 0 .-

00 o0 0o 0D 0 0 0C 0*I 00 0N-(\4 (D(, 0( D 0 (N (4 CDC 0 Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW1 18A-3 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.210123 U (1/1/2006 a) 0.201687 U (12/1/2005 a) (0.210123 - 0.201687)/(2 - 1) 0.00843558 0.240798 U (2/1/2006 a) 0.201687 U (12/1/2005 a) (0.240798 - 0.201687)/(3 - 1) 0.0195552 0.191718 U (3/1/2006 a) 0.201687 U (12/1/2005 a) (0.191718 - 0.201687)/(4 - 1) -0.00332311 0.180598 U (4/1/2006 a) 0.201687 U (12/1/2005 a) (0.180598 - 0.201687)/(5 - 1) -0.00527224 0.208206 U (6/1/2006 a) 0.201687 U (12/1/2005 a) (0.208206 - 0.201687)/(6 - 1) 0.00130368 0.153758 U (9/1/2006 a) 0.201687 U (12/1/2005 a) (0.153758 - 0.201687)/(7 - 1) -0.00798824 0.180982 U (12/1/2006 a) 0.201687 U (12/1/2005 a) (0.180982 - 0.201687)/(8 - 1) -0.00295793 0.139571 U (3/5/2007 a) 0.201687 U (12/1/2005 a) (0.139571 - 0.201687)/(9 - 1) -0.00776457 0.125 U (4/1/2007 a) 0.201687 U (12/1/2005 a) (0.125 - 0.201687)/(10 - 1) -0.00852079 0.128451 U (6/6/2007 a) 0.201687 U (12/1/2005 a) (0.128451 - 0.201687)/(11 - 1) -0.00732362 0.240798 U (2/1/2006 a) 0.210123 U (1/1/2006 a) (0.240798- 0.210123)/(3 - 2) 0.0306748 0.191718 U (3/1/2006 a) 0.210123 U (1/1/2006 a) (0.191718- 0.210123)/(4 - 2) -0.00920245 0.180598 U (4/1/2006 a) 0.210123 U (1/1/2006 a) (0.180598- 0.210123)/(5 - 2) -0.00984151 0.208206 U (6/1/2006 a) 0.210123 U (1/1/2006 a) (0.208206 - 0.210123)/(6 - 2) -0.000479294 0.153758 U (9/1/2006 a) 0.210123 U (1/1/2006 a) (0.153758 - 0.210123)/(7 - 2) -0.011273

.0.139571 0.180982 U (12/1/2006 a)

U (3/5/2007 a) 0.125 U (4/1/2007 a) 0.210123 0.210123 0.210123 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.180982- 0.210123)/(8 - 2)

(0.139571 - 0.210123)/(9 - 2)

(0.125 - 0.210123)/(10- 2)

-0.00485685

-0.0100789

-0.0106403 0.128451 U (6/6/2007 a) 0.210123 U (1/1/2006 a) (0.128451 - 0.210123)/(11 - 2) -0.00907464 0.191718 U (3/1/2006 a) 0.240798 U (2/1/2006 a) (0.191718 - 0.240798)/(4- 3) -0.0490798 0.180598 U (4/1/2006 a) 0.240798 U (2/1/2006 a) (0.180598 - 0.240798)/(5 - 3) -0.0300997 0.208206 U (6/1/2006 a) 0.240798 U (2/1/2006 a) (0.208206 - 0.240798)/(6 - 3) -0.010864 0.153758 U (9/1/2006 a) 0.240798 U (2/1/2006 a) (0.153758 - 0.240798)/(7 - 3) -0.02176 0.180982 U (12/1/2006 a) 0.240798 U (2/1/2006 a) (0.180982 - 0.240798)/(8 - 3) -0.0119632 0.139571 U (3/5/2007 a) 0.240798 U (2/1/2006 a) (0.139571 - 0.240798)/(9 - 3) -0.0168712 0.125 U (4/1/2007 a) 0.240798 U (2/1/2006 a) (0.125 - 0.240798)/(10 - 3) -0.0165425 0.128451 U (6/6/2007 a) 0.240798 U (2/1/2006 a) (0.128451 - 0.240798)/(11 - 3) -0.0140433

0. 180598 U (4/1/2006 a) 0.191718 U (3/1/2006 a) (0.180598 - 0.191718)/(5- 4) -0.0111196 0.208206 U (6/1/2006 a) 0.191718 U (3/1/2006 a) (0.208206 - 0.191718)/(6 - 4) 0.00824387

0. 153758 U (9/1/2006 a) 0.191718 U (3/1/2006 a) (0.153758 - 0.191718)/(7 - 4) -0.0126534 0.180982 U (12/1/2006 a) 0.191718 U (3/1/2006 a) (0.180982 - 0.191718)/(8 - 4) -0.00268405 0.139571 U (3/5/2007 a) 0.191718 U (3/1/2006 a) (0.139571 - 0.191718)/(9 - 4) -0.0104294 0.125 U (4/1/2007 a) 0.191718 U (3/1/2006 a) (0.125 - 0.191718)/(10- 4) -0.0111196 0.128451 U (6/6/2007 a) 0.191718 U (3/1/2006 a) (0.128451 - 0.191718)/(11 - 4) -0.00903812 0.208206 U (6/1/2006 a) 0.180598 U (4/1/2006 a) (0.208206 - 0.180598)/(6 - 5) 0.0276074 0.153758 U (9/1/2006 a) 0.180598 U (4/1/2006 a) (0.153758 - 0.180598)/(7 - 5) -0.0134202 0.180982 U (12/1/2006 a) 0.180598 U (4/1/2006 a) (0.180982 - 0.180598)/(8 - 5) 0.000127812 0.139571 U (3/5/2007 a) 0.180598 U (4/1/2006 a) (0.139571 - 0.180598)/(9 - 5) -0.0102569 0.125 U (4/1/2007 a) 0.180598 U (4/1/2006 a) (0.125 - 0.180598)/(10 - 5) -0.0111196 0.128451 U (6/6/2007 a) 0.180598 U (4/1/2006 a) (0.128451 - 0.180598)/(11 - 5) -0.00869121 0.153758 U (9/1/2006 a) 0.208206 U (6/1/2006 a) (0.153758 - 0.208206)/(7 - 6) -0.0544479 0.180982 U (12/1/2006 a) 0.208206 U (6/1/2006 a) (0.180982 - 0.208206)/(8 - 6) -0.013612 Page 1

.0.139571

0. 125 U (4/1/2007 a) a)

U (3/5/2007 0.128451 U (6/6/2007 a) 0.208206 U (6/1/2006 a) 0.208206 U (6/1/2006 a) 0.208206 U (6/1/2006 a)

(0.139571 - 0.208206)/(9 - 6)

(0.125 - 0.208206)/(10 - 6)

(0.128451 - 0.208206)/(11 - 6)

-0.0228783

-0.0208014

-0.0159509

0. 180982 U (12/1/2006 a) 0.153758 U (9/1/2006'a) (0.180982 - 0.153758)/(8- 7) 0.0272239 0.139571 U (3/5/2007 a) 0.153758 U (9/1/2006'a) (0.139571 - 0.153758)/(9- 7) -0.00709356

0. 125 U (4/1/2007 a) 0.153758 U (9/1/2006,a) (0.125 - 0.153758)/(10 - 7) -0.00958589

0. 128451 U (6/6/2007 a) 0.153758 U (9/1/2006Wa) (0.128451 - 0.153758)/(11 - 7) -0.00632669

0. 139571 U (3/5/2007 a) 0.180982 U (12/1/2006 a) (0.139571 - 0.180982)/(9- 8) -0.041411

0. 125 U (4/1/2007 a) 0.180982 U (12/1/2006 a) (0.125 - 0.180982)/(10 - 8) -0.0279908 0.128451 U (6/6/2007 a) 0.180982 U (12/1/2006 a) (0.128451 - 0.180982)/(11 - 8) -0.0175102 0.139571 U (3/5/2007 a) (0.125 - 0.139571)/(1 0- 9) -0.0145706

0. 125 U (4/1/2007 a) 0.128451 U (6/6/2007 a) 0.139571 U (3/5/2007-a) (0.128451 - 0.139571)/(11 - 9) -0.00555982 0.128451 U (6/6/2007 a) 0.125 U (4/1/2007 a) (0.128451 - 0.125)/(11 - 10) 0.00345092 Number of 0 values = 55 Ordered Q Values n a 1 -0.0544479 2 -0.0490798 3 -0.041411 4 -0.0300997 5 -0.0279908 6 -0.0228783 7 -0.02176 8 -0.0208014 9 -0.0175102 10 -0.0168712 11 -0.0165425 12 -0.0159509 13 -0.0145706 14 -0.0140433 15 -0.013612 16 -0.0134202 17 -0.0126534 18 -0.0119632 19 -0.011273 20 -0.0111196 21 -0.0111196 22 -0.0111196 23 -0.010864 24 -0.0106403 25 -0.0104294 26 -0.0102569 27 -0.0100789 28 -0.00984151 29 -0.00958589 30 -0.00920245

. 31 32 33

-0.00907464

-0.00903812

-0.00869121 34 -0.00852079 Page 2

. 36 35 37

-0.00776457

-0.00798824

-0.00732362 38 -0.00709356 39 -0.00632669 40 -0.00555982 41 -0.00527224 42 -0.00485685 43 -0.00332311 44 -0.00295793 45 -0.00268405 46 -0.000479294 47 0.000127812 48 0.00130368 49 0.00345092 50 0.00824387 51 0.00843558 52 0.0195552 53 0.0272239 54 0.0276074 55 0.0306748 Sen's Estimator (Median Q) is -0.00984151 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 4/1/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 21.1285 M1 = (55- 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.0126534 = Q(17)

Upper limit is -0.00632669 = Q(39)

-0.00632669 < 0 indicating a downward trend in data.

Page 3

TEDE 0.4 Time-Series Graph of MW118A-4 0.4 0.35 0.3 0.25 E

E

,E 0.2 c

0 c 0.15 00 0.1 0.05 0

(0) (0 o0I o0CO C CD CD 0 CD CD SampC lN CD (N .. (N (NCD Sample Date Page 1

.Sen's Parameter:Slope Analysis TEDE Location: MW1 18A-4 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.284893 U (1/1/2006 a) 0.391104 U (12/1/2005 a) (0.284893 - 0.391104)/(2 - 1) -0.106212 0.22546 U (2/1/2006 a) 0.391104 U (12/1/2005 a) (0.22546 - 0.391104)/(3 - 1) -0.0828221 0.184816 U (3/1/2006 a) 0.391104 U (12/1/2005 a) (0.184816 - 0.391104)/(4 - 1) -0.0687628 0.213574 U (4/1/2006 a) 0.391104 U (12/1/2005 a) (0.213574 - 0.391104)/(5 - 1) -0.0443827 0.169095 U (6/1/2006 a) 0.391104 U (12/1/2005 a) (0.169095 - 0.391104)/(6 - 1) -0.0444018 0.178298 U (9/1/2006 a) 0.391104 U (12/1/2005 a) (0.178298 - 0.391104)/(7 - 1) -0.0354678 0.113113 U (12/1/2006 a) 0.391104 U (12/1/2005 a) (0.113113 - 0.391104)/(8 - 1) -0.039713

0. 107745 U (3/5/2007 a) 0.391104 U (12/1/2005 a) (0.107745 - 0.391104)/(9 - 1) -0.0354199 0.106979 U (4/1/2007 a) 0.391104 U (12/1/2005 a) (0.106979 - 0.391104)/(10 - 1) -0.0315695 0.106595 U (6/6/2007 a) 0.391104 U (12/1/2005 a) (0.106595 - 0.391104)/(11 - 1) -0.0284509 0.22546 U (2/1/2006 a) 0.284893 U (1/1/2006 a) (0.22546 - 0.284893)/(3 - 2) -0.0594325 0.184816 U (3/1/2006 a) 0.284893 U (1/1/2006 a) (0.184816 - 0.284893)/(4 - 2) -0.0500383 0.213574 U (4/1/2006 a) 0.284893 U (1/1/2006 a) (0.213574 - 0.284893)/(5 - 2) -0.023773 0.169095 U (6/1/2006 a) 0.284893 U (1/1/2006 a) (0.169095 - 0.284893)/(6 - 2) -0.0289494 0.178298 U (9/1/2006 a) 0.284893 U (1/1/2006 a) (0.178298 - 0.284893)/(7 - 2) -0.021319

.0.107745 0.113113 U (12/1/2006 a)

U (3/5/2007 a) 0.106979 U (4/1/2007 a) 0.284893 0.284893 0.284893 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.113113 - 0.284893)/(8 - 2)

(0.107745 - 0.284893)/(9 - 2)

(0.106979 - 0.284893)/(10 - 2)

-0.0286299

-0.0253067

-0.0222393

0. 106595 U (6/6/2007 a) 0.284893 U (1/1/2006 a) (0.106595 - 0.284893)/(11 - 2) -0.0198108 0.184816 U (3/1/2006 a) 0.22546 U (2/1/2006 a) (0.184816 - 0.22546)/(4 - 3) -0.0406442 0.213574 U (4/1/2006 a) 0.22546 U (2/1/2006 a) (0.213574- 0.22546)/(5- 3) -0.00594325 0.169095 U (6/1/2006 a) 0.22546 U (2/1/2006 a) (0.169095 - 0.22546)/(6 - 3) -0.0187883

0. 178298 U (9/1/2006 a) 0.22546 U (2/1/2006 a) (0.178298 - 0.22546)/(7 - 3) -0.0117906 0.113113 U (12/1/2006 a) 0.22546 U (2/1/2006 a) (0.113113 - 0.22546)/(8 - 3) -0.0224693 0.107745 U (3/5/2007 a) 0.22546 U (2/1/2006 a) (0.107745 - 0.22546)/(9 - 3) -0.0196191 0.106979 U (4/1/2007 a) 0.22546 U (2/1/2006 a) (0.106979 - 0.22546)/(10 - 3) -0.0169259 0.106595 U (6/6/2007 a) 0.22546 U (2/1/2006 a) (0.106595 - 0.22546)/(11 - 3) -0.0148581 0.213574 U (4/1/2006 a) 0.184816 U (3/1/2006 a) (0.213574- 0.184816)/(5 - 4) 0.0287577 0.169095 U (6/1/2006 a) 0.184816 U (3/1/2006 a) (0.169095 - 0.184816)/(6- 4) -0.00786043 0.178298 U (9/1/2006 a) 0.184816 U (3/1/2006 a) (0.178298 - 0.184816)/(7 - 4) -0.0021728 0.113113 U (12/1/2006 a) 0.184816 U (3/1/2006 a) (0.113113 - 0.184816)/(8 - 4) -0.0179256 0.107745 U (3/5/2007 a) 0.184816 U (3/1/2006 a) (0.107745 - 0.184816)/(9 - 4) -0.0154141 0.106979 U (4/1/2007 a) 0.184816 U (3/1/2006 a) (0.106979 - 0.184816)/(10 - 4) -0.0129729 0.106595 U (6/6/2007 a) 0.184816 U (3/1/2006 a) (0.106595 - 0.184816)/(11 - 4) -0.0111744 0.169095 U (6/1/2006 a) 0.213574 U (4/1/2006 a) (0.169095 - 0.213574)/(6 - 5) -0.0444785

0. 178298 U (9/1/2006 a) 0.213574 U (4/1/2006 a) (0.178298 - 0.213574)/(7 - 5) -0.017638 0.113113 U (12/1/2006 a) 0.213574 U (4/1/2006 a) (0.113113 - 0.213574)/(8 - 5) -0.0334867 0.107745 U (3/5/2007 a) 0.213574 U (4/1/2006 a) (0.107745 - 0.213574)/(9 - 5) -0.0264571 0.106979 U (4/1/2007 a) 0.213574 U (4/1/2006 a) (0.106979 - 0.213574)/(10 - 5) -0.021319 0.106595 U (6/6/2007 a) 0.213574 U (4/1/2006 a) (0.106595 - 0.213574)/(11 - 5) -0.0178298 0.169095 U (6/1/2006 a) 0.178298 U (9/1/2006 a) (0.178298 - 0.169095)/(7 - 6) 0.00920245 0.113113 U (12/1/2006 a) 0. 169095 U (6/1/2006 a) (0.113113 - 0.169095)/(8 - 6) -0.0279908

/ Page 1

. 0.106979 0.107745 UU (4/1/2007 (3/5/2007 a) 0.106595 U (6/6/2007 a) a)

0.169095 U (6/1/2006 a) 0.169095 U (6/1/2006 a) 0.169095 U (6/1/2006 a)

(0.107745 - 0.169095)/(9- 6)

(0.106979 - 0.169095)/(10- 6)

(0.106595 - 0.169095)/(11 - 6)

-0.0204499

-0.0155291

-0.0125 0.113113 U (12/1/2006 a) 0.178298 U (9/1/2006 a) (0.113113 - 0.178298)/(8 - 7) -0.065184 0.107745 U (3/5/2007 a) 0.178298 U (9/1/2006 a) (0.107745 - 0.178298)/(9 - 7) -0.0352761 0.106979 U (4/1/2007 a) 0.178298 U (9/1/2006 a) (0.106979 - 0.178298)/(10- 7) -0.023773 0.106595 U (6/6/2007 a) 0.178298 U (9/1/2006 a) (0.106595 - 0.178298)/(11 - 7) -0.0179256 0.107745 U (3/5/2007 a) 0.113113 U (12/1/2006 a) (0.107745 - 0.113113)/(9 - 8) -0.0053681

0. 106979 U (4/1/2007 a) 0.113113 U (12/1/2006 a) (0.106979 - 0.113113)/(10 - 8) -0.00306748

0. 106595 U (6/6/2007 a) 0.113113 U (12/1/2006 a) (0.106595 - 0.113113)/(11 - 8) -0.0021728 0.106979 U (4/1/2007 a) 0.107745 U (3/5/2007 a)

(0.106979 - 0.107745)/(10 - 9) -0.000766871 0.106595 U (6/6/2007 a) 0.107745 U (3/5/2007 a) (0.106595 - 0.107745)/(11 - 9) -0.000575154 0.106595 U (6/6/2007 a) 0.106979 U (4/1/2007 a) (0.106595 - 0.106979)/(11 - 10) -0.000383436 Number of 0 values = 55 Ordered Q Values n Q 1 -0.106212 2 -0.0828221 3 -0.0687628 4 -0.065184 5 -0.0594325 6 -0.0500383 7 -0.0444785 8 -0.0444018 9 -0.0443827 10 -0.0406442 11 -0.039713 12 -0.0354678 13 -0.0354199 14 -0.0352761 15 -0.0334867 16 -0.0315695 17 -0.0289494 18 -0.0286299 19 -0.0284509 20 -0.0279908 21 -0.0264571 22 -0.0253067 23 -0.023773 24 -0.023773 25 -0.0224693 26 -0.0222393 27 -0.021319 28 -0.021319 29 -0.0204499 30 -0.0198108

. 31 32 33

-0.0196191

-0.0187883

-0.0179256 34 -0.0179256 Page 2

. 36 35 37

-0.017638

-0.0178298

-0.0169259 38 -0.0155291 39 -0.0154141 40 -0.0148581 41 -0.0129729 42 -0.0125 43 -0.0117906 44 -0.0111744 45 -0.00786043 46 -0.00594325 47 -0.0053681 48 -0.00306748 49 -0.0021728 50 -0.0021728 51 -0.000766871 52 -0.000575154 53 -0.000383436 54 0.00920245 55 0.0287577 Sen's Estimator (Median Q) is -0.021319 Time Period Observations 12/1/2005 1 1/1/2006 1

. 2/1/2006 3/1/2006 4/1/2006 1

1 1

6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 4/1/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a - 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.0289494 = Q(17)

Upper limit is -0.0154141 = Q(39)

-0.0154141 < 0 indicating a downward trend in data.

Page 3

0 TEDE E

C:

0 0.

co (0 ItO (0 (D C0 C o 0 (0 0 0> 0 0 N-o o 0Q 0 0Q 0 0.

Q V) (')

E2 LO ro Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW1 18A-5 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.121933 U (1/1/2006 a) 0.0874233 U (12/1/2005 a) (0.121933- 0.0874233)/(2 - 1) 0.0345092 0.177147 U (2/1/2006 a) 0.0874233 U (12/1/2005 a) (0.177147 - 0.0874233)/(3 - 1) 0.044862 0.0881902 U (3/1/2006 a) 0.0874233 U (12/1/2005 a) (0.0881902 - 0.0874233)/(4 - 1) 0.000255624 0.222096 U (4/1/2006 a) 0.0874233 U (12/1/2005 a) (0.222096 - 0.0874233)/(5 - 1) 0.0336682 0.224693 U (6/1/2006 a) 0.0874233 U (12/1/2005 a) (0.224693 - 0.0874233)/(6 - 1) 0.027454 0.724693 U (9/1/2006 a) 0.0874233 U (12/1/2005 a) (0.724693 - 0.0874233)/(7 - 1) 0.106212 0.633729 U (10/31/2006 a) 0.0874233 U (12/1/2005 a) (0.633729 - 0.0874233)/(8 - 1) 0.0780437 0.372695 U (12/1/2006 a) 0.0874233 U (12/1/2005 a) (0.372695 - 0.0874233)/(9 - 1) 0.0356589 0.468864 U (3/5/2007 a) 0.0874233 U (12/1/2005 a) (0.468864 - 0.0874233)/(10 - 1) 0.0423823 0.373981 U (4/1/2007 a) 0.0874233 U (12/1/2005 a) (0.373981 - 0.0874233)/(11 - 1) 0.0286558 0.399424 U (6/6/2007 a) 0.0874233 U (12/1/2005 a) (0.399424 - 0.0874233)/(12 - 1) 0.0283637 0.177147 U (2/1/2006 a) 0.121933 U (1/1/2006 a) (0.177147 - 0.121933)/(3- 2) 0.0552147 0.0881902 U (3/1/2006 a) 0.121933 U (1/1/2006 a) (0.0881902- 0.121933)/(4 - 2) -0.0168712 0.222096 U (4/1/2006 a) 0.121933 U (1/1/2006 a) (0.222096 - 0.121933)/(5- 2) 0.0333878 0.224693 U (6/1/2006 a) 0.121933 U (1/1/2006 a) (0.224693 - 0.121933)/(6 - 2) 0.0256902

.0.633729 0.724693 U (9/1/2006 a)

U (10/31/2006 a) 0.372695 U (12/1/2006 a) 0.121933 0.121933 0.121933 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.724693 - 0.121933)/(7 - 2)

(0.633729 - 0.121933)/(8 - 2)

(0.372695 - 0.121933)/(9 - 2) 0.120552 0.0852994 0.0358232 0.468864 U (3/5/2007 a) 0.121933 U (1/1/2006 a) (0.468864 - 0.121933)/(10 - 2) 0.0433664 0.373981 U (4/1/2007 a) 0.121933 U (1/1/2006 a) (0.373981 - 0.121933)/(11 - 2) 0.0280054 0.399424 U (6/6/2007 a) 0.121933 U (1/1/2006 a) (0.399424 - 0.121933)/(12 - 2) 0.0277491 0.0881902 U (3/1/2006 a) 0.177147 U (2/1/2006 a) (0.0881902 - 0.177147)/(4 - 3) -0.0889571 0.222096 U (4/1/2006 a) 0.177147 U (2/1/2006 a) (0.222096 - 0.177147)/(5 - 3) 0.0224744 0.224693 U (6/1/2006 a) 0.177147 U (2/1/2006 a) (0.224693 - 0.177147)/(6 - 3) 0.0158487 0.724693 U (9/1/2006 a) 0.177147 U (2/1/2006 a) (0.724693 - 0.177147)/(7 - 3) 0.136887 0.633729 U (10/31/2006 a) 0.177147 U (2/1/2006 a) (0.633729 - 0.177147)/(8 - 3) 0.0913163 0.372695 U (12/1/2006 a) 0.177147 U (2/1/2006 a) (0.372695 - 0.177147)/(9 - 3) 0.0325913 0.468864 U (3/5/2007 a) 0.177147 U (2/1/2006 a) (0.468864 - 0.177147)/(10 - 3) 0.0416738 0.373981 U (4/1/2007 a) 0.177147 U (2/1/2006 a) (0.373981 - 0.177147)/(11 - 3) 0.0246042 0.399424 U (6/6/2007 a) 0.177147 U (2/1/2006 a) (0.399424 - 0.177147)/(12 - 3) 0.0246974 0.222096 U (4/1/2006 a) 0.0881902 U (3/1/2006 a) (0.222096 - 0.0881902)/(5 - 4) 0.133906 0.224693 U (6/1/2006 a) 0.0881902. U (3/1/2006 a) (0.224693 - 0.0881902)/(6- 4) 0.0682515 0.724693 U (9/1/2006 a) 0.0881902 U (3/1/2006 a) (0.724693 - 0.0881902)/(7 - 4) 0.212168 0.633729 U (10/31/2006 a) 0.0881902 U (3/1/2006 a) (0.633729 - 0.0881902)/(8 - 4) 0.136385 0.372695 U (12/1/2006 a) 0.0881902 U (3/1/2006 a) (0.372695 - 0.0881902)/(9 - 4) 0.0569009 0.468864 U (3/5/2007 a) 0.0881902 U (3/1/2006 a) (0.468864 - 0.0881902)/(10 - 4) 0.0634456 0.373981 U (4/1/2007 a) 0.0881902 U (3/1/2006 a) (0.373981 - 0.0881902)/(11 - 4) 0.0408273 0.399424 U (6/6/2007 a) 0.0881902 U (3/1/2006 a) (0.399424 - 0.0881902)/(12 - 4) 0.0389042 0.224693 U (6/1/2006 a) 0.222096 U (4/1/2006 a) (0.224693 - 0.222096)/(6 - 5) 0.00259728

.0.633729 0.724693 U (9/1/2006 a)

U (10/31/2006 a) 0.372695 U (12/1/2006 a) 0.222096 0.222096 0.222096 U (4/1/2006 U (4/1/2006 U (4/1/2006 a) a)

a)

(0.724693 (0.633729 (0.372695

- 0.222096)/(7 - 5)

- 0.222096)/(8 - 5)

- 0.222096)/(9 - 5) 0.251299 0.137211 0.0376497 0.468864 U (3/5/2007 a) 0.222096 U (4/1/2006 a) (0.468864 - 0.222096)/(10 - 5) 0.0493536 Page 1

0.222096 U (4/1/2006 a) (0.373981 - 0.222096)/(11 - 5) 0.0253142 O0.373981 0.399424 U (6/6/2007 (4/1/2007 a) 0.222096 U (4/1/2006 a) (0.399424 - 0.222096)/(12 - 5) 0.0253325 0.724693 U (9/1/2006 a) 0.224693 U (6/1/2006 a) (0.724693 - 0.224693)/(7 - 6) 0.5 0.633729 U (10/31/2006 a) 0.224693 U (6/1/2006 a) (0.633729 - 0.224693)/(8 - 6) 0.204518 0.372695 U (12/1/2006 a) 0.224693 U (6/1/2006 a) (0.372695 - 0.224693)/(9 - 6) 0.0493339 0.468864 U (3/5/2007 a) 0.224693 U (6/1/2006 a) (0.468864 - 0.224693)/(10 - 6) 0.0610426 0.373981 U (4/1/2007 a) 0.224693 U (6/1/2006 a) (0.373981 - 0.224693)/(11 - 6) 0.0298576 0.399424 U (6/6/2007 a) 0.224693 U (6/1/2006 a) (0.399424 - 0.224693)/(12 - 6) 0.0291218 0.633729 U (10/31/2006 a) 0.724693 U (9/1/2006 a) (0.633729 - 0.724693)/(8 - 7) -0.0909644 0.372695 U (12/1/2006 a) 0.724693 U (9/1/2006 a) (0.372695 - 0.724693)/(9 - 7) -0.175999 0.468864 U (3/5/2007 a) 0.724693 U (9/1/2006 a) (0.468864 - 0.724693)/(10 - 7) -0.0852765 0.373981 U (4/1/2007 a) 0.724693 U (9/1/2006 a) (0.373981 - 0.724693)/(11 - 7) -0.087678 0.399424 U (6/6/2007 a) 0.724693 U (9/1/2006 a) (0.399424 - 0.724693)/(12 - 7) -0.0650539 0.372695 U (12/1/2006 a) 0.633729 U (10/31/2006 a) (0.372695 - 0.633729)/(9 - 8) -0.261034 0.468864 U (3/5/2007 a) 0.633729 U (10/31/2006 a) (0.468864 - 0.633729)/(10 - 8) -0.0824325 0.373981 U (4/1/2007 a) 0.633729 U (10/31/2006 a) (0.373981 - 0.633729)/(11 - 8) -0.0865826 0.399424 U (6/6/2007 a) 0.633729 U (10/31/2006 a) (0.399424 - 0.633729)/(12 - 8) -0.0585763 0.468864 U (3/5/2007 a) 0.372695 U (12/1/2006 a) (0.468864 - 0.372695)/(10 - 9) 0.096169 0.373981 U (4/1/2007 a) 0.372695 U (12/1/2006 a) (0.373981 - 0.372695)/(11 - 9) 0.000643133 0.399424 U (6/6/2007 a) 0.372695 U (12/1/2006 a) (0.399424 - 0.372695)/(12 - 9) 0.00890966 0.373981 U (4/1/2007 a) 0.468864 U (3/5/2007 a) (0.373981 - 0.468864)/(11 - 10) -0.0948827 0.399424 U (6/6/2007 a) 0.468864 U (3/5/2007 a) (0.399424 - 0.468864)/(12 - 10) -0.03472 0.399424 U (6/6/2007 a) 0.373981 U (4/1/2007 a) (0.399424 - 0.373981)/(12 - 11) 0.0254427 Number of Q values = 66 Ordered 0 Values n a 1 -0.261034 2 -0.175999 3 -0.0948827 4 -0.0909644 5 -0.0889571 6 -0.087678 7 -0.0865826 8 -0.0852765 9 -0.0824325 10 -0.0650539 11 -0.0585763 12 -0.03472 13 -0.0168712 14 0.000255624 15 0.000643133 16 0.00259728 17 0.00890966 18 0.0158487 19 0.0224744 20 0.0246042 21 0.0246974 22 0.0253142 Page 2

24 23 0.0254427 0.0253325 25 0.0256902 26 0.027454 27 0.0277491 28 0.0280054 29 0.0283637 30 0.0286558 31 0.0291218 32 0.0298576 33 0.0325913 34 0.0333878 35 0.0336682 36 0.0345092 37 0.0356589 38 0.0358232 39 0.0376497 40 0.0389042 41 0.0408273 42 0.0416738 43 0.0423823 44 0.0433664 45 0.044862 46 0.0493339 47 0.0493536 48 0.0552147 49 0.0569009 50 0.0610426 51 0.0634456 52 0.0682515 53 0.0780437 54 0.0852994 55 0.0913163 56 0.096169 57 0.106212 58 0.120552 59 0.133906 60 0.136385 61 0.136887 62 0.137211 63 0.204518 64 0.212168 65 0.251299 66 0.5 Sen's Estimator (Median Q) is 0.0329895 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1

.9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 Page 3

. 6/6/2007 4/1/2007 11 There are 0 time periods with multiple data A=0 B=0 C=O D=0 E=0 F=0 a 3828 b = 11880 c = 264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is 0.0246974 = Q(21)

Upper limit is 0.0493339 = Q(46) 0.0246974 > 0 indicating an upward trend in data.

Page 4

TEDE E

0 0

(D CD Lo C) CD CD 0) 0D C-0 0 (0 0> C 0 0D oD 0 0a' \ 0 0

0) QN Q C14 C.' -~~~ 0.J-4J C-~~t )C)0 Z.

Q C-- cq C U) r. - C)CD Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW119-2 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 0.0709356 U (1/1/2006 a) 0.0763037 U (12/1/2005 a) (0.0709356 - 0.0763037)/(2 - 1) -0.0053681 0.068635 U (2/1/2006 a) 0.0763037 U (12/1/2005 a) (0.068635 - 0.0763037)/(3 - 1) -0.00383436 0.149372 U (3/1/2006 a) 0.0763037 U (12/1/2005 a) (0.149372 - 0.0763037)/(4 - 1) 0.0243562 0.0682515 U (4/1/2006 a) 0.0763037 U (12/1/2005 a) (0.0682515 - 0.0763037)/(5 - 1) -0.00201304 0.0571319 U (6/1/2006 a) 0.0763037 U (12/1/2005 a) (0.0571319 - 0.0763037)/(6 - 1) -0.00383436 0.0517638 U (9/1/2006 a) 0.0763037 U (12/1/2005 a) (0.0517638 - 0.0763037)/(7 - 1) -0.00408998 0.0621166 U (12/1/2006 a) 0.0763037 U (12/1/2005 a) (0.0621166 - 0.0763037)/(8 - 1) -0.00202673 0.0575153 U (3/5/2007 a) 0.0763037 U (12/1/2005 a) (0.0575153 - 0.0763037)/(9 - 1) -0.00234854 0.0402607 U (6/6/2007 a) 0.0763037 U (12/1/2005 a) (0.0402607 - 0.0763037)/(10 - 1) -0.00400477 0.068635 U (2/1/2006 a) 0.0709356 U (1/1/2006 a) (0.068635 - 0.0709356)/(3 - 2) -0.00230061 0.149372 U (3/1/2006 a) 0.0709356 U (1/1/2006 a) (0.149372 - 0.0709356)/(4 - 2) 0.0392183 0.0682515 U (4/1/2006 a) 0.0709356 U (1/1/2006 a) (0.0682515 - 0.0709356)/(5 - 2) -0.000894683 0.0571319 U (6/1/2006 a) 0.0709356 U (1/1/2006 a) (0.0571319 - 0.0709356)/(6 - 2) -0.00345092 0.0517638 U (9/1/2006 a) 0.0709356 U (1/1/2006 a) (0.0517638 - 0.0709356)/(7 - 2) -0.00383436 0.0621166 U (12/1/2006 a) 0.0709356 U (1/1/2006 a) (0.0621166 - 0.0709356)/(8 - 2) -0.00146984 0.0575153 U (3/5/2007 a) 0.0709356 U (1/1/2006 a) (0.0575153 - 0.0709356)/(9- 2) -0.00191718 0.0402607 U (6/6/2007 a) 0.0709356 U (1/1/2006 a) (0.0402607 - 0.0709356)/(10 - 2) -0.00383436 0.149372 U (3/1/2006 a) 0.068635 U (2/1/2006 a) (0.149372 - 0.068635)/(4 - 3) 0.0807372 0.0682515 U (4/1/2006 a) 0.068635 U (2/1/2006 a) (0.0682515 - 0.068635)/(5 - 3) -0.000191718 0.0571319 U (6/1/2006 a) 0.068635 U (2/1/2006 a) (0.0571319 - 0.068635)/(6 - 3) -0.00383436 0.0517638 U (9/1/2006 a) 0.068635 U (2/1/2006 a) (0.0517638 - 0.068635)/(7 - 3) -0.00421779 0.0621166 U (12/1/2006 a) 0.068635 U (2/1/2006 a) (0.0621166 - 0.068635)/(8- 3) -0.00130368 0.0575153 U (3/5/2007 a) 0.068635 U (2/1/2006 a) (0.0575153 - 0.068635)/(9 - 3) -0.00185327 0.0402607 U (6/6/2007 a) 0.068635 U (2/1/2006 a) (0.0402607 - 0.068635)/(10 - 3) -0.00405346 0.0682515 U (4/1/2006 a) 0. 149372 U (3/1/2006 a) (0.0682515 - 0.149372)/(5 - 4) -0.0811206 0.0571319 U (6/1/2006 a) 0.149372 U (3/1/2006 a) (0.0571319 - 0.149372)/(6 - 4) -0.0461201 0.0517638 U (9/1/2006 a) 0.149372 U (3/1/2006 a) (0.0517638 - 0.149372)/(7 - 4) -0.0325361 0.0621166 U (12/1/2006 a) 0.149372 U (3/1/2006 a) (0.0621166 - 0.149372)/(8- 4) -0.0218139 0.0575153 U (3/5/2007 a) 0.149372 U (3/1/2006 a) (0.0575153 - 0.149372)/(9 - 4) -0.0183714 0.0402607 U (6/6/2007 a) 0.149372 U (3/1/2006 a) (0.0402607 - 0.149372)/(10 - 4) -0.0181852 0.0571319 U (6/1/2006 a) 0.0682515 U (4/1/2006 a) (0.0571319 - 0.0682515)/(6 - 5) -0.0111196 0.0517638 U (9/1/2006 a) 0.0682515 U (4/1/2006 a) (0.0517638 - 0.0682515)/(7 - 5) -0.00824387 0.0621166 U (12/1/2006 a) 0.0682515 U (4/1/2006 a) (0.0621166 - 0.0682515)/(8 - 5) -0.00204499 0.0575153 U (3/5/2007 a) 0.0682515 U (4/1/2006 a) (0.0575153 - 0.0682515)/(9 - 5) -0.00268405 0.0402607 U (6/6/2007 a) 0.0682515 U (4/1/2006 a) (0.0402607 - 0.0682515)/(10 - 5) -0.00559816 0.0517638 U (9/1/2006 a) 0.0571319 U (6/1/2006 a) (0.0517638 - 0.0571319)/(7 - 6) -0.0053681 0.0621166 U (12/1/2006 a) 0.0571319 U (6/1/2006 a) (0.0621166 - 0.0571319)/(8 - 6) 0.00249233 0.0575153 U (3/5/2007 a) 0.0571319 U (6/1/2006 a) (0.0575153 - 0.0571319)/(9 - 6) 0.000127812 0.0402607 U (6/6/2007 a) 0.0571319 U (6/1/2006 a) (0.0402607 - 0.0571319)/(10 - 6) -0.00421779 0.0621166 U (12/1/2006 a) 0.0517638 U (9/1/2006 a) (0.0621166 - 0.0517638)/(8 - 7) 0.0103528 0.0575153 U (3/5/2007 a) 0.0517638 U (9/1/2006 a) (0.0575153 - 0.0517638)/(9 - 7) 0.00287577 Page 1

0.0402607 U (6/6/2007 a) 0.0517638 U (9/1/2006 a) (0.0402607 - 0.0517638)/(10 - 7) -0.00383436 0.0575153 U (3/5/2007 a) 0.0621166 U (12/1/2006 a) (0.0575153 - 0.0621166)/(9 - 8) -0.00460123 0.0402607 U (6/6/2007 a) 0.0621166 U (12/1/2006 a) (0.0402607 - 0.0621166)/(10 - 8) -0.0109279 0.0402607 U (6/6/2007 a) 0.0575153 U (3/5/2007 a) (0.0402607 - 0.0575153)/(10 - 9) -0.0172546 Number of Q values = 45 Ordered 0 Values n Q 1 -0.0811206 2 -0.0461201 3 -0.0325361 4 -0.0218139 5 -0.0183714 6 -0.0181852 7 -0.0172546 8 -0.0111196 9 -0.0109279 10 -0.00824387 11 -0.00559816 12 -0.0053681 13 -0.0053681 14 -0.00460123 15 -0.00421779 16 -0.00421779 17 -0.00408998 18 -0.00405346 19 -0.00400477 20 -0.00383436 21 -0.00383436 22 -0.00383436 23 -0.00383436 24 -0.00383436 25 -0.00383436 26 -0.00345092 27 -0.00268405 28 -0.00234854 29 -0.00230061 30 -0.00204499 31 -0.00202673 32 -0.00201304 33 -0.00191718 34 -0.00185327 35 -0.00146984 36 -0.00130368 37 -0.000894683 38 -0.000191718 39 0.000127812 40 0.00249233 41 0.00287577 42 0.0103528 43 0.0243562 44 0.0392183 45 0.0807372 Page 2

O Sen's Estimator (Median Q) is -0.00383436 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a - 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 O C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0053681 = Q(13)

Upper limit is -0.00191718 = Q(33)

-0.00191718 < 0 indicating a downward trend in data.

Page 3

0 TEDE E

C)

E c

0 0

C) CD WC CD 0 0 f'-

C> CD CD 0 0C0 0 0

C'j 0 0")

(N2 U) - Ca CD C"') C")

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW119-4 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0636503 U (1/1/2006 a) 0.216481 U (12/1/2005 a) (0.0636503 - 0.216481)/(2 - 1) -0.15283 0.0429448 U (2/1/2006 a) 0.216481 U (12/1/2005 a) (0.0429448 - 0.216481 )/(3 - 1) -0.086768 0.0471626 U (3/1/2006 a) 0.216481 U (12/1/2005 a) (0.0471626- 0.216481 )/(4 - 1) -0.0564394 0.056365 U (4/1/2006 a) 0.216481 U (12/1/2005 a) (0.056365 - 0.216481 )/(5 - 1) -0.0400289 0.0555982 U (6/1/2006 a) 0.216481 U (12/1/2005 a) (0.0555982- 0.216481 )/(6 - 1) -0.0321765 0.0452454 U (9/1/2006 a) 0.216481 U (12/1/2005 a) (0.0452454- 0.216481)/(7 - 1) -0.0285392 0.0498466 U (12/1/2006 a) 0.216481 U (12/1/2005 a) (0.0498466 - 0.216481)/(8 - 1) -0.0238049 0.0310199 U (3/5/2007 a) 0.216481 U (12/1/2005 a) (0.0310199 - 0.216481)/(9 - 1) -0.0231826 0.0280675 U (6/6/2007 a) 0.216481 U (12/1/2005 a) (0.0280675 - 0.216481)/(10 - 1) -0.0209348 0.0429448 U (2/1/2006 a) 0.0636503 U (1/1/2006 a) (0.0429448 - 0.0636503)/(3 - 2) -0.0207055 0.0471626 U (3/1/2006 a) 0.0636503 U (1/1/2006 a) (0.0471626 - 0.0636503)/(4 - 2) -0.00824387 0.056365 U (4/1/2006 a) 0.0636503 U (1/1/2006 a) (0.056365 - 0.0636503)/(5 - 2) -0.00242843 0.0555982 U (6/1/2006 a) 0.0636503 U (1/1/2006 a) (0.0555982 - 0.0636503)/(6 - 2) -0.00201304 0.0452454 U (9/1/2006 a) 0.0636503 U (1/1/2006 a)' (0.0452454 - 0.0636503)/(7 - 2) -0.00368098 0.0498466 U (12/1/2006 a) 0.0636503 U (1/1/2006 a) (0.0498466 - 0.0636503)/(8 - 2) -0.00230061 0.0310199 U (3/5/2007 a) 0.0636503 U (1/1/2006 a) (0.0310199 - 0.0636503)/(9 - 2) -0.00466148 0.0280675 U (6/6/2007 a) 0.0636503 U (1/1/2006 a) (0.0280675 - 0.0636503)/(10 - 2) -0.00444785 0.0471626 U (3/1/2006 a) 0.0429448 U (2/1/2006 a) (0.0471626 - 0.0429448)/(4 - 3) 0.00421779 0.056365 U (4/1/2006 a) 0.0429448 U (2/1/2006 a) (0.056365 - 0.0429448)/(5- 3) 0.00671012 0.0555982 U (6/1/2006 a) 0.0429448 U (2/1/2006 a) (0.0555982 - 0.0429448)/(6 - 3) 0.00421779 0.0452454 U (9/1/2006 a) 0.0429448 U (2/1/2006 a) (0.0452454 - 0.0429448)/(7 - 3) 0.000575153 0.0498466 U (12/1/2006 a) 0.0429448 U (2/1/2006 a) (0.0498466 - 0.0429448)/(8 - 3) 0.00138037 0.0310199 U (3/5/2007 a) 0.0429448 U (2/1/2006 a) (0.0310199- 0.0429448)/(9- 3) -0.00198747 0.0280675 U (6/6/2007 a) 0.0429448 U (2/1/2006 a) (0.0280675 - 0.0429448)/(10 - 3) -0.00212533 0.056365 U (4/1/2006 a) 0.0471626 U (3/1/2006 a) (0.056365 - 0.0471626)/(5 - 4) 0.00920245 0.0555982 U (6/1/2006 a) 0.0471626 U (3/1/2006 a) (0.0555982 - 0.0471626)/(6- 4) 0.00421779 0.0452454 U (9/1/2006 a) 0.0471626 U (3/1/2006 a) (0.0452454 - 0.0471626)/(7 - 4) -0.000639059 0.0498466 U (12/1/2006 a) 0.0471626 U (3/1/2006 a) (0.0498466 - 0.0471626)/(8- 4) 0.000671012 0.0310199 U (3/5/2007 a) 0.0471626 U (3/1/2006 a) (0.0310199 - 0.0471626)/(9- 4) -0.00322853 0.0280675 U (6/6/2007 a) 0.0471626 U (3/1/2006 a) (0.0280675 - 0.0471626)/(10 - 4) -0.00318252 0.0555982 U (6/1/2006 a) 0.056365 U (4/1/2006 a) (0.0555982 - 0.056365)/(6 - 5) -0.000766871 0.0452454 U (9/1/2006 a) 0.056365 U (4/1/2006 a) (0.0452454 - 0.056365)/(7 - 5) -0.00555982 0.0498466 U (12/1/2006 a) 0.056365 U (4/1/2006 a) (0.0498466 - 0.056365)/(8 - 5) -0.0021728 0.0310199 U (3/5/2007 a) 0.056365 U (4/1/2006 a) (0.0310199- 0.056365)/(9- 5) -0.00633627 0.0280675 U (6/6/2007 a) 0.056365 U (4/1/2006 a) (0.0280675 - 0.056365)/(10 - 5) -0.00565951 0.0452454 U (9/1/2006 a) 0.0555982 U (6/1/2006 a) (0.0452454 - 0.0555982)/(7 - 6) -0.0103528 0.0498466 U (12/1/2006 a) 0.0555982 U (6/1/2006 a) (0.0498466 - 0.0555982)/(8 - 6) -0.00287577 0.0310199 U (3/5/2007 a) 0.0555982 U (6/1/2006 a) (0.0310199 - 0.0555982)/(9 - 6) -0.00819274 0.0280675 U (6/6/2007 a) 0.0555982 U (6/1/2006 a) (0.0280675 - 0.0555982)/(10 - 6) -0.00688267 0.0498466 U (12/1/2006 a) 0.0452454 U (9/1/2006 a) (0.0498466 - 0.0452454)/(8 - 7) 0.00460123 0.0310199 U (3/5/2007 a) 0.0452454 U (9/1/2006 a) (0.0310199 - 0.0452454)/(9 - 7) -0.00711273 Page 1

0.0280675 U (6/6/2007 a) 0.0452454 U (9/1/2006 a) (0.0280675 - 0.0452454)/(10 - 7) -0.00572597 0.0310199 U (3/5/2007 a) 0.0498466 U (12/1/2006 a) (0.0310199 - 0.0498466)/(9 - 8) -0.0188267

.0.0280675 U (6/6/2007 a) 0.0498466 U (12/1/2006 a) (0.0280675 - 0.0498466)/(10 - 8) -0.0108896 0.0280675 U (6/6/2007 a) 0.0310199 U (3/5/2007 a) (0.0280675 - 0.0310199)/(10 - 9) -0.00295245 Number of Q values = 45 Ordered Q Values n Q 1 -0.15283 2 -0.086768 3 -0.0564394 4 -0.0400289 5 -0.0321765 6 -0.0285392 7 -0.0238049 8 -0.0231826 9 -0.0209348 10 -0.0207055 11 -0.0188267 12 -0.0108896 13 -0.0103528 14 -0.00824387 15 -0.00819274 16 -0.00711273 17 -0.00688267 18 -0.00633627 19 -0.00572597 20 -0.00565951 21 -0.00555982 22 -0.00466148 23 -0.00444785 24 -0.00368098 25 -0.00322853 26 -0.00318252 27 -0.00295245 28 -0.00287577 29 -0.00242843 30 -0.00230061 31 -0.0021728 32 -0.00212533 33 -0.00201304 34 -0.00198747 35 -0.000766871 36 -0.000639059 37 0.000575153 38 0.000671012 39 0.00138037 40 0.00421779 41 0.00421779 42 0.00421779 43 0.00460123 44 0.00671012 45 0.00920245 Page 2

Sen's Estimator (Median Q) is -0.00444785 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b - 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0103528 = Q(13)

Upper limit is -0.00201304 = Q(33)

-0.00201304 < 0 indicating a downward trend in data.

Page 3

TEDE 0.7 Time-Series Graph of MW 119-5 0.6 0.5 0.4 E

0 0.2 0.1 aIII " I (0 (

Lo (0 (0 ) 0D C Co (0 0 0D oC 0 0! O (, 0 0 (0 U) ._Sl Ca) (0 Sample Date U

Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW119-5 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.636503 U (1/1/2006 a) 0.613497 U (12/1/2005 a) (0.636503- 0.613497)/(2 - 1) 0.0230061 0.575153 U (2/1/2006 a) 0.613497 U (12/1/2005 a) (0.575153 - 0.613497)/(3 - 1) -0.0191718 0.5657 U (3/1/2006 a) 0.613497 U (12/1/2005 a) (0.5657 - 0.613497)/(4 - 1) -0.0159322 0.544479 U (4/1/2006 a) 0.613497 U (12/1/2005 a) (0.544479 - 0.613497)/(5 - 1) -0.0172546 0.463957 U (6/1/2006 a) 0.613497 U (12/1/2005 a) (0.463957 - 0.613497)/(6 - 1) -0.029908 0.398773 U (9/1/2006 a) 0.613497 U (12/1/2005 a) (0.398773 - 0.613497)/(7 - 1) -0.0357873 0.44862 U (12/1/2006 a) 0.613497 U (12/1/2005 a) (0.44862 - 0.613497)/(8 - 1) -0.0235539 0.38727 U (3/5/2007 a) 0.613497 U (12/1/2005 a) (0.38727 - 0.613497)/(9 - 1) -0.0282784 0.417945 U (6/6/2007 a) 0.613497 U (12/1/2005 a) (0.417945- 0.613497)/(1 0 - 1) -0.021728 0.575153 U (2/1/2006 a) 0.636503 U (1/1/2006 a) (0.575153 - 0.636503)/(3 - 2) -0.0613497 0.5657 U (3/1/2006 a) 0.636503 U (1/1/2006 a) (0.5657 - 0.636503)/(4 - 2) -0.0354013 0.544479 U (4/1/2006 a) 0.636503 U (1/1/2006 a) (0.544479 - 0.636503)/(5 - 2) -0.0306748 0.463957 U (6/1/2006 a) 0.636503 U (1/1/2006 a) (0.463957 - 0.636503)/(6 - 2) -0.0431365 0.398773 U (9/1/2006 a) 0.636503 U (1/1/2006 a) (0.398773 - 0.636503)/(7 - 2) -0.047546 0.44862 U (12/1/2006 a) 0.636503 U (1/1/2006 a) (0.44862 - 0.636503)/(8 - 2) -0.0313139 0.38727 U (3/5/2007 a) 0.636503 U (1/1/2006 a) (0.38727 - 0.636503)/(9 - 2) -0.0356047 0.417945 U (6/6/2007 a) 0.636503,U (1/1/2006 a) (0.417945 - 0.636503)/(10 - 2) -0.0273198 0.5657 U (3/1/2006 a) 0.575153 U (2/1/2006 a) (0.5657 - 0.575153)/(4 - 3) -0.00945299 0.544479 U (4/1/2006 a) 0.575153 U (2/1/2006 a) (0.544479 - 0.575153)/(5 - 3) -0.0153374 0.463957 U (6/1/2006 a) 0.575153 U (2/1/2006 a) (0.463957 - 0.575153)/(6 - 3) -0.0370654 0.398773 U (9/1/2006 a) 0.575153 U (2/1/2006 a) (0.398773 - 0.575153)/(7 - 3) -0.0440951 0.44862 U (12/1/2006 a) 0.575153 U (2/1/2006 a) (0.44862 - 0.575153)/(8 - 3) -0.0253067 0.38727 U (3/5/2007 a) 0.575153 U (2/1/2006 a) (0.38727 - 0.575153)/(9 - 3) -0.0313139 0.417945 U (6/6/2007 a) 0.575153 U (2/1/2006 a) (0.417945- 0.575153)/(10 - 3) -0.0224584 0.544479 U (4/1/2006 a) 0.5657 U (3/1/2006 a) (0.544479 - 0.5657)/(5 - 4) -0.0212219 0.463957 U (6/1/2006 a) 0.5657 U (3/1/2006 a) (0.463957 - 0.5657)/(6 - 4) -0.0508717 0.398773 U (9/1/2006 a) 0.5657 U (3/1/2006 a) (0.398773 - 0.5657)/(7 - 4) -0.0556425 0.44862 U (12/1/2006 a) 0.5657 U (3/1/2006 a) (0.44862 - 0.5657)/(8 - 4) -0.0292702 0.38727 U (3/5/2007 a) 0.5657 U (3/1/2006 a) (0.38727 - 0.5657)/(9 - 4) -0.0356861 0.417945 U (6/6/2007 a) 0.5657 U (3/1/2006 a) (0.417945 - 0.5657)/(10 - 4) -0.0246259 0.463957 U (6/1/2006 a) 0.544479 U (4/1/2006 a) (0.463957 - 0.544479)/(6 - 5) -0.0805215 0.398773 U (9/1/2006 a) 0.544479 U (4/1/2006 a) (0.398773 - 0.544479)/(7 - 5) -0.0728528 0.44862 U (12/1/2006 a) 0.544479 U (4/1/2006 a) (0.44862 - 0.544479)/(8 - 5) -0.031953 0.38727 U (3/5/2007 a) 0.544479 U (4/1/2006 a) (0.38727 - 0.544479)/(9 - 5) -0.0393021 0.417945 U (6/6/2007 a) 0.544479 U (4/1/2006 a) (0.417945 - 0.544479)/(10 - 5) -0.0253067 0.398773 U (9/1/2006 a) 0.463957 U (6/1/ 2006 a) (0.398773 - 0.463957)/(7 - 6) -0.065184 0.44862 U (12/1/2006 a) 0.463957 U (6/1/2006 a) (0.44862 - 0.463957)/(8 - 6) -0.00766871 0.38727 U (3/5/2007 a) 0.463957 U (6/1/2006 a) (0.38727 - 0.463957)/(9 - 6) -0.0255624 0.417945 U (6/6/2007 a) 0.463957 U (6/1/2006 a) (0.417945 - 0.463957)/(10 - 6) -0.0115031 0.44862 U (12/1/2006 a) 0.398773 U (9/1/2006 a) (0.44862 - 0.398773)/(8 - 7) 0.0498466 0.38727 U (3/5/2007 a) 0.398773 U (9/1/2006 a) (0.38727 - 0.398773)/(9 - 7) -0.00575153 Page 1

0.417945 U (6/6/2007 a) 0.398773 U (9/1/2006 a) (0.417945 - 0.398773)/(10 - 7) 0.00639059 0.38727 U (3/5/2007 a) 0.44862 U (12/1/2006 a) (0.38727 - 0.44862)/(9 - 8) -0.0613497 0.417945 U (6/6/2007 a) 0.44862 U (12/1/2006 a) (0.417945- 0.44862)/(10 - 8) -0.0153374 0.417945 U (6/6/2007 a) 0.38727 U (3/5/2007 a) (0.417945 - 0.38727)/(10 - 9) 0.0306748 Number of Q values = 45 Ordered Q Values n Q 1 -0.0805215 2 -0.0728528 3 -0.065184 4 -0.0613497 5 -0.0613497 6 -0.0556425 7 -0.0508717 8 -0.047546 9 -0.0440951 10 -0.0431365 11 -0.0393021 12 -0.0370654 13 -0.0357873 14 -0.0356861 15 -0.0356047 16 -0.0354013 17 -0.031953 18 -0.0313139 19 -0.0313139 20 -0.0306748 21 -0.029908 22 -0.0292702 23 -0.0282784 24 -0.0273198 25 -0.0255624 26 -0.0253067 27 -0.0253067 28 -0.0246259 29 -0.0235539 30 -0.0224584 31 -0.021728 32 -0.0212219 33 -0.0191718 34 -0.0172546 35 -0.0159322 36 -0.0153374 37 -0.0153374 38 -0.0115031 39 -0.00945299 40 -0.00766871 41 -0.00575153 42 0.00639059 43 0.0230061 44 0.0306748 45 0.0498466 Page 2

Sen's Estimator (Median Q) is -0.0282784 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=O B=0 C=O D = 0 E ='O F=0 a = 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

. C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0357873 = Q(13)

Upper limit is -0.0191718 = Q(33)

-0.0191718 < 0 indicating a downward trend in data.

Page 3

TEDE Time-Series Graph of MW119-6 0.6 0.5 E

0 .4

.2 c

0 C 0.3 0.2 0.1 (0 co to (0 co 0 CD 0o-0 0 (o C 0 0 0C-CS 0 0mple QN0(N D 0 (CN Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW119-6 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.747699 U (1/1/2006 a) 0.695827 U (12/1/2005 a) (0.747699 - 0.695827)/(2 - 1) 0.0518723 0.747699 U (2/1/2006 a) 0.695827 U (12/1/2005 a) (0.747699 - 0.695827)/(3 - 1) 0.0259361 0.766871 U (3/1/2006 a) 0.695827 U (12/1/2005 a) (0.766871 - 0.695827)/(4 - 1) 0.0236813 0.763037 U (4/1/2006 a) 0.695827 U (12/1/2005 a) (0.763037 - 0.695827)/(5 - 1) 0.0168024 0.663344 U (6/1/2006 a) 0.695827 U (12/1/2005 a) (0.663344 - 0.695827)/(6 - 1) -0.00649671 0.697853 U (9/1/2006 a) 0.695827 U (12/1/2005 a) (0.697853 - 0.695827)/(7 - 1) 0.000337607 0.705521 U (12/1/2006 a) 0.695827 U (12/1/2005 a) (0.705521 - 0.695827)/(8 - 1) 0.00138491 0.575153 U (3/5/2007 a) 0.695827 U (12/1/2005 a) (0.575153 - 0.695827)/(9 - 1) -0.0150842 0.53681 U (6/6/2007 a) 0.695827 U (12/1/2005 a) (0.53681 - 0.695827)/(10 - 1) -0.0176686 0.747699 U (2/1/2006 a) 0.747699 U (1/1/2006 a) (0.747699 - 0.747699)/(3 - 2) 0 0.766871 U (3/1/2006 a) 0.747699 U (1/1/2006 a) (0.766871 - 0.747699)/(4 - 2) 0.00958589 0.763037 U (4/1/2006 a) 0.747699 U (1/1/2006 a) (0.763037 - 0.747699)/(5 - 2) 0.00511247 0.663344 U (6/1/2006 a) 0.747699 U (1/1/2006 a) (0.663344 - 0.747699)/(6 - 2) -0.021089 0.697853 U (9/1/2006 a) 0.747699 U (1/1/2006 a) (0.697853 - 0.747699)/(7 - 2) -0.00996933 0.705521 U (12/1/2006 a) 0.747699 U (1/1/2006 a) (0.705521 - 0.747699)/(8 - 2) -0.00702965 0.575153 U (3/5/2007 a) 0.747699 U (1/1/2006 a) (0.575153 - 0.747699)/(9 - 2) -0.0246494 0.53681 U (6/6/2007 a) 0.747699 U (1/1/2006 a) (0.53681 - 0.747699)/(10 - 2) -0.0263612 0.766871 U (3/1/2006 a) 0.747699 U (2/1/2006 a) (0.766871 - 0.747699)/(4 - 3) 0.0191718 0.763037 U (4/1/2006 a) 0.747699 U (2/1/2006 a) (0.763037 - 0.747699)/(5 - 3) 0.00766871 0.663344 U (6/1/2006 a) 0.747699 U (2/1/2006 a) (0.663344 - 0.747699)/(6 - 3) -0.0281186 0.697853 U (9/1/2006 a) 0.747699 U (2/1/2006 a) (0.697853 - 0.747699)/(7 - 3) -0.0124617 0.705521 U (12/1/2006 a) 0.747699 U (2/1/2006 a) (0.705521 - 0.747699)/(8 - 3) -0.00843558 0.575153 U (3/5/2007 a) 0.747699 U (2/1/2006 a) (0.575153 - 0.747699)/(9 - 3) -0.0287577 0.53681 U (6/6/2007 a) 0.747699 U (2/1/2006 a) (0.53681 - 0.747699)/(10 - 3) -0.0301271 0.763037 U (4/1/2006 a) 0.766871 U (3/1/2006 a) (0.763037 - 0.766871 )/(5 - 4) -0.00383436 0.663344 U (6/1/2006 a) 0.766871 U (3/1/2006 a) (0.663344 - 0.766871 )/(6 - 4) -0.0517638 0.697853 U (9/1/2006 a) 0.766871 U (3/1/2006 a) (0.697853 - 0.766871)/(7 - 4) -0.0230061 0.705521 U (12/1/2006 a) 0.766871 U (3/1/2006 a) (0.705521 - 0.766871)/(8 - 4) -0.0153374 0.575153 U (3/5/2007 a) 0.766871 U (3/1/2006 a) (0.575153- 0.766871)/(9- 4) -0.0383436 0.53681 U (6/6/2007 a) 0.766871 U (3/1/2006 a) (0.53681 - 0.766871)/(10 - 4) -0.0383436 0.663344 U (6/1/2006 a) 0.763037 U (4/1/2006 a) (0.663344 - 0.763037)/(6 - 5) -0.0996933 0.697853 U (9/1/2006 a) 0.763037 U (4/1/2006 a) (0.697853 - 0.763037)/(7 - 5) -0.032592 0.705521 U (12/1/2006 a) 0.763037 U (4/1/2006 a) (0.705521 - 0.763037)/(8 - 5) -0.0191718 0.575153 U (3/5/2007 a) 0.763037 U (4/1/2006 a) (0.575153 - 0.763037)/(9 - 5) -0.0469709 0.53681 U (6/6/2007 a) 0.763037 U (4/1/2006 a) (0.53681 - 0.763037)/(10 - 5) -0.0452454 0.697853 U (9/1/2006 a) 0.663344 U (6/1/2006 a) (0.697853 - 0.663344)/(7 - 6) 0.0345092 0.705521 U (12/1/2006 a) 0.663344 U (6/1/2006 a) (0.705521 - 0.663344)/(8 - 6) 0.021089 0.575153 U (3/5/2007 a) 0.663344 U (6/1/2006 a) (0.575153 - 0.663344)/(9 - 6) -0.0293967 0.53681 U (6/6/2007 a) 0.663344 U (6/1/2006 a) (0.53681 - 0.663344)/(10 - 6) -0.0316334 0.705521 U (12/1/2006 a) 0.697853 U (9/1/2006 a) (0.705521 - 0.697853)/(8 - 7) 0.00766871 0.575153 U (3/5/2007 a) 0.697853 U (9/1/2006 a) (0.575153 - 0.697853)/(9 - 7) -0.0613497 Page 1

0.53681 U (6/6/2007 a) 0.697853 U (9/1/2006 a) (0.53681 - 0.697853)/(10 - 7) -0.053681 0.575153 U (3/5/2007 a) 0.705521 U (12/1/2006 a) (0.575153- 0.705521)/(9- 8) -0.130368 0.53681 U (6/6/2007 a) 0.705521 U (12/1/2006 a) (0.53681 - 0.705521)/(10- 8) -0.0843558 0.53681 U (6/6/2007 a) 0.575153 U (3/5/2007 a) (0.53681 - 0.575153)/(10 -.9) -0.0383436 Number of Q values = 45 Ordered Q Values n 0 1 -0.130368 2 -0.0996933 3 -0.0843558 4 -0.0613497 5 -0.053681 6 -0.0517638 7 -0.0469709 8 -0.0452454 9 -0.0383436 10 -0.0383436 11 -0.0383436 12 -0.032592 13 -0.0316334 14 -0.0301271

. 15 16 17

-0.0293967

-0.0287577

-0.0281186 18 -0.0263612 19 -0.0246494 20 -0.0230061 21 -0.021089 22 -0.0191718 23 -0.0176686 24 -0.0153374 25 -0.0150842 26 -0.0124617 27 -0.00996933 28 -0.00843558 29 -0.00702965 30 -0.00649671 31 -0.00383436 32 0 33 0.000337607 34 0.00138491 35 0.00511247 36 0.00766871 37 0.00766871 38 0.00958589 39 0.0168024 40 0.0191718 41 0.021089

. 42 43 44 0.0236813 0.0259361 0.0345092 45 0.0518723 Page 2

Sen's Estimator (Median Q) is -0.0176686 Tied Group Value Members 1 0.747699 2 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A =18 B=0 C=0 D=O E=2 F=O a = 2250 b = 6480

. c = 180 Group Variance = 124 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 18.3163 M1 = (45 - 18.3163)/2.0 = 13.3418 M2 = (45 + 18.3163)/2.0 + 1 = 32.6582 Lower limit is -0.0316334 = Q(13)

Upper limit is 0.000337607 = 0(33)

-0.0316334 < 0 < 0.000337607 indicating no trend in data.

Page 3

TEDE E

0 c

.2 C

L)

C-0 to to co 0 CN 0 0D CD 0) 0 0> n 0 0CN 0 C, 0 CD 0> N (N0 QN (N CN ".0 N- U C CI4 Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW120-1 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<O U (1/1/2006 a) 0.0122699 U (12/1/2005 a) (0 - 0.0122699)/(2 - 1) -0.0122699 ND<0 U (2/1/2006 a) 0.0122699 U (12/1/2005 a) (0 - 0.0122699)/(3 - 1) -0.00613497 ND<0 U (3/1/2006 a) 0.0122699 U (12/1/2005 a) (0 - 0.0122699)/(4 - 1) -0.00408998 ND<0 U (4/1/2006 a) 0.0122699 U (12/1/2005 a) (0 - 0.0122699)/(5 - 1) -0.00306748 0.0180598 U (6/1/2006 a) 0.0122699 U (12/1/2005 a) (0.0180598 ý 0.0122699)/(6 - 1) 0.00115798 ND<0 U (9/1/2006 a) 0.0122699 U (12/1/2005 a) (0 - 0.0122699)/(7 - 1) -0.00204499 0.00966258 U (12/1/2006 a) 0.0122699 U (12/1/2005 a) (0.00966258 - 0.0122699)/(8 - 1) -0.00037248 ND<0 U (3/5/2007 a) 0.0122699 U (12/1/2005 a) (0 - 0.0122699)/(9 - 1) -0.00153374 ND<0 U (6/6/2007 a) 0.0122699 U (12/1/2005 a) (0- 0.0122699)/(10 - 1) -0.00136333 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 0.0180598 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0.0180598 - 0)/(6 - 2) 0.00451495 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 0.00966258 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0.00966258 - 0)/(8 - 2) 0.00161043 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0- 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 0.0180598 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0.0180598 - 0)/(6 - 3) 0.00601994 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 0.00966258 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0.00966258 - 0)/(8 - 3) 0.00193252 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(9 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 0.0180598 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0.0180598 - 0)/(6 - 4) 0.00902991 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 0.00966258 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0.00966258 - 0)/(8 - 4) 0.00241564 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 0.0180598 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0.0180598 - 0)/(6 - 5) 0.0180598 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 0.00966258 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0.00966258 - 0)/(8 - 5) 0.00322086 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(10 - 5) 0 ND<0 U (9/1/2006 a) 0.0180598 U (6/1/2006 a) (0- 0.0180598)/(7- 6) , -0.0180598 0.00966258 U (12/1/2006 a) 0.0180598 U (6/1/2006 a) (0.00966258 - 0.0180598)/(8 6) -0.00419862 ND<0 U (3/5/2007 a) 0.0180598 U (6/1/2006 a) (0 - 0.0180598)/(9 - 6) -0.00601994 ND<0 U (6/6/2007 a) 0.0180598 U (6/1/2006 a) (0- 0.0180598)/(10- 6) -0.00451495 0.00966258 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0.00966258 - 0)/(8 - 7) 0.00966258 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<0 U (6/6/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(10 - 7) 0 ND<0 U (3/5/2007 a) 0.00966258 U (12/1/2006 a) (0 - 0.00966258)/(9 - 8) -0.00966258 ND<0 U (6/6/2007 a) 0.00966258 U (12/1/2006 a) (0 - 0.00966258)/(10 - 8) -0.00483129 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) 0 Number of Q values = 45 Ordered Q Values n Q 1 -0.0180598 2 -0.0122699 3 -0.00966258 4 -0.00613497 5 -0.00601994 6 -0.00483129 7 -0.00451495 8 -0.00419862 9 -0.00408998 10 -0.00306748 11 -0.00204499 12 -0.00153374 13 -0.00136333 14 -0.00037248

. 15 16 17 0

0 0

18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0.00115798 37 0.00161043 38 0.00193252 39 0.00241564 40 0.00322086 41 0.00451495 43 42 0.00601994 0.00902991 44 0.00966258 45 0.0180598 Page 2

. Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 7 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 798 B=0 C = 210 D=0 E = 42 F=0 a = 2250 b = 6480

. c = 180 Group Variance = 80.6667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 14.7732 M1 = (45- 14.7732)/2.0 = 15.1134 M2 = (45 + 14.7732)/2.0 + 1 = 30.8866 Lower limit is 0 = Q(15)

Upper limit is 0 = Q(31) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE E

E 0

C-)

r_

0 0

LO (0(0C C) 0 (0 C) 0 0 0

0 o )

o 0 0 Q 0 0 C 00(4 C'4 0 O'4 U)

(N E"!

('C4 N)(

Sample Date Page 1

O Sen's Slope Analysis Parameter: TEDE Location: MW120-2 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 0.0133436 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0.0133436 - 0)/(6 - 1) 0.00266871 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 ND<0 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(8 - 1) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0- 0)/(10 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0- 0)/(5 - 2) 0 0.0133436 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0.0133436 - 0)/(6 - 2) 0.00333589 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 ND<0 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(8 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 0.0133436 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0.0133436 - 0)/(6 - 3) 0.00444785 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(8 - 3) 0 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(9 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 0.0133436 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0.0133436 - 0)/(6 - 4) 0.00667178 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4) 0 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 0.0133436 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0.0133436 - 0)/(6 - 5) 0.0133436 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 ND<0 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5) 0 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(10 - 5) 0 ND<0 U (9/1/2006 a) 0.0133436 U (6/1/2006 a) (0 - 0.0133436)/(7- 6) -0.0133436 ND<0 U (12/1/2006 a) 0.0133436 U (6/1/2006 a) (0 - 0.0133436)/(8- 6) -0.00667178 ND<0 U (3/5/2007 a) 0.0133436 U (6/1/2006 a) (0 - 0.0133436)/(9 - 6) -0.00444785 ND<0 U (6/6/2007 a) 0.0133436 U (6/1/2006 a) (0 - 0.0133436)/(10 - 6) -0.00333589 ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<0 U (6/6/2007 a) ND<0 U (9/1/2006 a) (0- 0)/(10- 7) 0 ND<0 U (3/5/2007 a) ND< U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(1 0- 9) 0 Number of Q values = 45 Ordered Q Values n a 1 -0.0133436 2 -0.00667178 3 -0.00444785 4 -0.00333589 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0

. 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0.00266871

. 42 43 44 0.00333589 0.00444785 0.00667178 45 0.0133436 Page 2

Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 9 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 1656 B=0 C = 504 D=0 E = 72 F=0 a = 2250 b = 6480 c= 180 Group Variance = 33 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 9.44896 M1 = (45 - 9.44896)/2.0 = 17.7755 M2 = (45 + 9.44896)/2.0 + 1 = 28.2245 Lower limit is 0 = Q(18)

Upper limit is 0 = Q(28) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE Time-Series Graph of MW120-3 0.008 0.007 0.006 0.006

.2) 0 g9 0.002

) (0 (0 a C QN CD (Q N C0

-- Q LO Q 0.001,-.- / - w

.. (SmpleDat e .-

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW120-3 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/11/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 0.00897239 U (12/1/2006 a) ND<0 U (112/1/2005 a) (0.00897239 - 0)/(8 - 1) 0.00128177 ND<0 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0- 0)/(10- 1) 0 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0- 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 0.00897239 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0.00897239 - 0)/(8 - 2) 0.0014954 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 0.00897239 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0.00897239 - 0)/(8 - 3) 0.00179448 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0- 0)/(9 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 0.00897239 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0.00897239 - 0)/(8 - 4) 0.0022431 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 0.00897239 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0.00897239 - 0)/(8 - 5) 0.0029908 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(10 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 0.00897239 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0.00897239 - 0)/(8 - 6) 0.0044862 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0- 0)/(10- 6) 0 0.00897239 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0.00897239 - 0)/(8 - 7) 0.00897239 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<0 U (6/6/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(10 - 7) 0 ND<0 U (3/5/2007 a) 0.00897239 U (12/1/2006 a) (0 - 0.00897239)/(9 - 8) -0.00897239 ND<O U (6/6/2007 a) 0.00897239 U (12/1/2006 a) (0 - 0.00897239)/(10 - 8) -0.0044862 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0-0)/(l0- 9) 0 Number of Q values = 45 Ordered Q Values n a 1 -0.00897239 2 -0.0044862 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0

. 15 16 17 0

0 0

18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0.00128177 40 0.0014954 41 0.00179448

. 42 43 44 0.0022431 0.0029908 0.0044862 45 0.00897239 Page 2

Sen's Estimator (Median 0) is 0 Tied Group Value Members 1 0 9 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 1656 B=0 C = 504 D=0 E = 72 F=0 a = 2250 b = 6480 c= 180 Group Variance = 33 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 9.44896 M1 = (45 - 9.44896)/2.0 = 17.7755 M2 = (45 + 9.44896)/2.0 + 1 = 28.2245 Lower limit is 0 = Q(18)

Upper limit is 0 = Q(28) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE 0.1 Time-Series Graph of MW120-4 0.09 0.08 0.07 0.06 E

c o.o5 0

0 0.04 O

0 0.034 0.02 0.01 to (0 U*) (00 0 0 ri-oo,, 0 o, (0 0

0 0

C- 0, 0 0,

(NJ (N 0 (NJ"N 0 (N o N-Cap Date Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW120-4 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a 0.0444785 U (1/1/2006 a) 0.0284893 U (12/1/2005 a) (0.0444785 - 0.0284893)/(2 - 1) 0.0159893 0.0498466 U (2/1/2006 a) 0.0284893 U (12/1/2005 a) (0.0498466 - 0.0284893)/(3 - 1) 0.0106787 0.0625 U (3/1/2006 a) 0.0284893 U (12/1/2005 a) (0.0625 - 0.0284893)/(4 - 1) 0.0113369 0.0759202 U (4/1/2006 a) 0.0284893 U (12/1/2005 a) (0.0759202 - 0.0284893)/(5 - 1) 0.0118577 0.0621166 U (6/1/2006 a) 0.0284893 U (12/1/2005 a) (0.0621166 - 0.0284893)/(6 - 1) 0.00672546 0.0858896 U (9/1/2006 a) 0.0284893 U (12/1/2005 a) (0.0858896 - 0.0284893)/(7 - 1) 0.00956672 0.083589 U (12/1/2006 a) 0.0284893 U (12/1/2005 a) (0.083589 - 0.0284893)/(8 - 1) 0.00787138 0.0985429 U (3/5/2007 a) 0.0284893 U (12/1/2005 a) (0.0985429 - 0.0284893)/(9 - 1) 0.00875671 0.0667178 U (6/6/2007 a) 0.0284893 U (12/1/2005 a) (0.0667178 - 0.0284893)/(10 - 1) 0.00424761 0.0498466 U (2/1/2006 a) 0.0444785 U (1/1/2006 a) (0.0498466 - 0.0444785)/(3 - 2) 0.0053681 0.0625 U (3/1/2006 a) 0.0444785 U (1/1/2006 a) (0.0625 - 0.0444785)/(4 - 2) 0.00901074 0.0759202 U (4/1/2006 a) 0.0444785 U (1/1/2006 a) (0.0759202 - 0.0444785)/(5 - 2) 0.0104806 0.0621166 U (6/1/2006 a) 0.0444785 U (1/1/2006 a) (0.0621166 - 0.0444785)/(6 - 2) 0.00440951 0.0858896 U (9/1/2006 a) 0.0444785 U (1/1/2006 a) (0.0858896 - 0.0444785)/(7 - 2) 0.00828221 0.083589 U (12/1/2006 a) 0.0444785 U (1/1/2006 a) (0.083589 - 0.0444785)/(8 - 2) 0.0065184 0.0985429 U (3/5/2007 a) 0.0444785 U (1/1/2006 a) (0.0985429 - 0.0444785)/(9 - 2) 0.00772349 0.0667178 U (6/6/2007 a) 0.0444785 U (1/1/2006 a) (0.0667178- 0.0444785)/(10 - 2) 0.00277991 0.0625 U (3/1/2006 a) 0.0498466 U (2/1/2006 a) (0.0625 - 0.0498466)/(4 - 3) 0.0126534 0.0759202 U (4/1/2006 a) 0.0498466 U (2/1/2006 a) (0.0759202 - 0.0498466)/(5 - 3) 0.0130368 0.0621166 U (6/1/2006 a) 0.0498466 U (2/1/2006 a) (0.0621166 - 0.0498466)/(6 - 3) 0.00408998 0.0858896 U (9/1/2006 a) 0.0498466 U (2/1/2006 a) (0.0858896 - 0.0498466)/(7 - 3) 0.00901074 0.083589 U (12/1/2006 a) 0.0498466 U (2/1/2006 a) (0.083589 - 0.0498466)/(8 - 3) 0.00674847 0.0985429 U (3/5/2007 a) 0.0498466 U (2/1/2006 a) (0.0985429 - 0.0498466)/(9 - 3) 0.00811605 0.0667178 U (6/6/2007 a) 0.0498466 U (2/1/2006 a) (0.0667178 - 0.0498466)/(10 - 3) 0.00241017 0.0759202 U (4/1/2006 a) 0.0625 U (3/1/2006 a) (0.0759202 - 0.0625)/(5 - 4) 0.0134202 0.0621166 U (6/1/2006 a) 0.0625 U (3/1/2006 a) (0.0621166 - 0.0625)/(6 - 4) -0.000191718 0.0858896 U (9/1/2006 a) 0.0625 U (3/1/2006 a) (0.0858896 - 0.0625)/(7 - 4) 0.00779652 0.083589 U (12/1/2006 a) 0.0625 U (3/1/2006 a) (0.083589 - 0.0625)/(8 - 4) 0.00527224 0.0985429 U (3/5/2007 a) 0.0625 U (3/1/2006 a) (0.0985429 - 0.0625)/(9 - 4) 0.00720859 0.0667178 U (6/6/2007 a) 0.0625 U (3/1/2006 a) (0.0667178- 0.0625)/(10 - 4) 0.000702965 0.0621166 U (6/1/2006 a) 0.0759202 U (4/1/2006 a) (0.0621166 - 0.0759202)/(6 - 5) -0.0138037 0.0858896 U (9/1/2006 a) 0.0759202 U (4/1/2006 a) (0.0858896 - 0.0759202)/(7 - 5) 0.00498466 0.083589 U (12/1/2006 a) 0.0759202 U (4/1/2006 a) (0.083589 - 0.0759202)/(8 - 5) 0.00255624 0.0985429 U (3/5/2007 a) 0.0759202 U (4/1/2006 a) (0.0985429 - 0.0759202)/(9 - 5) 0.00565568 0.0667178 U (6/6/2007 a) 0.0759202 U (4/1/2006 a) (0.0667178 - 0.0759202)/(10 - 5) -0.00184049 0.0858896 U (9/1/2006 a) 0.0621166 U (6/1/2006 a) (0.0858896 - 0.0621166)/(7 - 6) 0.023773 0.083589 U (12/1/2006 a) 0.0621166 U (6/1/2006 a) (0.083589 - 0.0621166)/(8 - 6) 0.0107362 0.0985429 U (3/5/2007 a) 0.0621166 U (6/1/2006 a) (0.0985429 - 0.0621166)/(9 - 6) 0.0121421 0.0667178 U (6/6/2007 a) 0.0621166 U (6/1/2006 a) (0.0667178 - 0.0621166)/(10 - 6) 0.00115031 0.083589 U (12/1/2006 a) 0.0858896 U (9/1/2006 a) (0.083589 - 0.0858896)/(8 - 7) -0.00230061 0.0985429 U (3/5/2007 a) 0.0858896 U (9/1/2006 a) (0.0985429 - 0.0858896)/(9 - 7) 0.00632669 Page 1

0.0667178 U (6/6/2007 a) 0.0858896 U (9/1/2006 a) (0.0667178 - 0.0858896)/(10 - 7) -0.00639059 0.0985429 U (3/5/2007 a) 0.083589 U (12/1/2006 a) (0.0985429 - 0.083589)/(9 - 8) 0.014954 0.0667178 U (6/6/2007 a) 0.083589 U (12/1/2006 a) (0.0667178 - 0.083589)/(10 - 8) -0.00843558 0.0667178 U (6/6/2007 a) 0.0985429 U (3/5/2007 a) (0.0667178 - 0.0985429)/(10 - 9) -0.0318252 Number of Q values = 45 Ordered 0 Values n Q 1 -0.0318252 2 -0.0138037 3 -0.00843558 4 -0.00639059 5 -0.00230061 6 -0.00184049 7 -0.000191718 8 0.000702965 9 0.00115031 10 0.00241017 11 0.00255624 12 0.00277991 13 0.00408998 14 0.00424761 15 0.00440951 16 0.00498466 17 0.00527224 18 0.0053681 19 0.00565568 20 0.00632669 21 0.0065184 22 0.00672546 23 0.00674847 24 0.00720859 25 0.00772349 26 0.00779652 27 0.00787138 28 0.00811605 29 0.00828221 30 0.00875671 31 0.00901074 32 0.00901074 33 0.00956672 34 0.0104806 35 0.0106787 36 0.0107362 37 0.0113369 38 0.0118577 39 0.0121421 40 0.0126534 41 0.0130368 42 0.0134202 43 0.014954 44 0.0159893 45 0.023773 Page 2

. Sen's Estimator (Median Q) is 0.00674847 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

. C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is 0.00408998 = Q(13)

Upper limit is 0.00956672 = Q(33) 0.00408998 > 0 indicating an upward trend in data.

Page 3

TEDE Time-Series Graph of MW120-5 0.08 0.08 0.07 E 0.05 E

C 0

o 0.03 0.02 0

0)0.03 0.01 C CII 0.02 I " I (0 (0 (0 (0 (0,. O 0 O o (,0 0 0 0 0 N-*

o 0 0 0 N (,N 0 0 (N (Sa0ple Dat0 Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW120-5 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 0.0655675 U (1/1/2006 a) 0.0601994 U (12/1/2005 a) (0.0655675 - 0.0601994)/(2 - 1) 0.0053681 0.0828221 U (2/1/2006 a) 0.0601994 U (12/1/2005 a) (0.0828221 - 0.0601994)/(3- 1) 0.0113113 0.0648006 U (3/1/2006 a) 0.0601994 U (12/1/2005 a) (0.0648006 - 0.0601994)/(4 - 1) 0.00153374 0.0667178 U (4/1/2006 a) 0.0601994 U (12/1/2005 a) (0.0667178 - 0.0601994)/(5 - 1) 0.0016296 0.0578988 U (6/1/2006 a) 0.0601994 U (12/1/2005 a) (0.0578988 - 0.0601994)/(6 - 1) -0.000460123 0.0513804 U (9/1/2006 a) 0.0601994 U (12/1/2005 a) (0.0513804 - 0.0601994)/(7 - 1) -0.00146984 0.0502301 U (12/1/2006 a) 0.0601994 U (12/1/2005 a) (0.0502301 - 0.0601994)/(8 - 1) -0.00142419 0.0494632 U (3/5/2007 a) 0.0601994 U (12/1/2005 a) (0.0494632 - 0.0601994)/(9 - 1) -0.00134202 0.0429448 U (6/6/2007 a) 0.0601994 U (12/1/2005 a) (0.0429448 - 0.0601994)/(10 - 1) -0.00191718 0.0828221 U (2/1/2006 a) 0.0655675 U (1/1/2006 a) (0.0828221 - 0.0655675)/(3 - 2) 0.0172546 0.0648006 U (3/1/2006 a) 0.0655675 U (1/1/2006 a) (0.0648006 - 0.0655675)/(4 - 2) -0.000383436 0.0667178 U (4/1/2006 a) 0.0655675 U (1/1/2006 a) (0.0667178 - 0.0655675)/(5 - 2) 0.000383435 0.0578988 U (6/1/2006 a) 0.0655675 U (1/1/2006 a) (0.0578988 - 0.0655675)/(6 - 2) -0.00191718 0.0513804 U (9/1/2006 a) 0.0655675 U (1/1/2006 a) (0.0513804 - 0.0655675)/(7 - 2) -0.00283742 0.0502301 U (12/1/2006 a) 0.0655675 U (1/1/2006 a) (0.0502301 - 0.0655675)/(8 - 2) -0.00255624 0.0494632 U (3/5/2007 a) 0.0655675 U (1/1/2006 a) (0.0494632 - 0.0655675)/(9 - 2) -0.00230061 0.0429448 U (6/6/2007 a) 0.0655675 U (1/1/2006 a) (0.0429448 - 0.0655675)/(10 - 2) -0.00282784 0.0648006 U (3/1/2006 a) 0.0828221 U (2/1/2006 a) (0.0648006 - 0.0828221)/(4- 3) -0.0180215 0.0667178 U (4/1/2006 a) 0.0828221 U (2/1/2006 a) (0.0667178- 0.0828221)/(5- 3) -0.00805215 0.0578988 U (6/1/2006 a) 0.0828221 U (2/1/2006 a) (0.0578988 - 0.0828221)/(6 - 3) -0.00830777 0.0513804 U (9/1/2006 a) 0.0828221 U (2/1/2006 a) (0.0513804 - 0.0828221)/(7 - 3) -0.00786043 0.0502301 U (12/1/2006 a) 0.0828221 U (2/1/2006 a) (0.0502301 - 0.0828221)/(8 - 3) -0.00651841 0.0494632 U (3/5/2007 a) 0.0828221 U (2/1/2006 a) (0.0494632 - 0.0828221)/(9 - 3) -0.00555982 0.0429448 U (6/6/2007 a) 0.0828221 U (2/1/2006 a) (0.0429448 - 0.0828221)/(10 - 3) -0.00569676 0.0667178 U (4/1/2006 a) 0.0648006 U (3/1/2006 a) (0.0667178 - 0.0648006)/(5- 4) 0.00191718 0.0578988 U (6/1/2006 a) 0.0648006 U (3/1/2006 a) (0.0578988 - 0.0648006)/(6 - 4) -0.00345092 0.0513804 U (9/1/2006 a) 0.0648006 U (3/1/2006 a) (0.0513804 - 0.0648006)/(7 - 4) -0.00447342 0.0502301 U (12/1/2006 a) 0.0648006 U (3/1/2006 a) (0.0502301 - 0.0648006)/(8 - 4) -0.00364264 0.0494632 U (3/5/2007 a) 0.0648006 U (3/1/2006 a) (0.0494632 - 0.0648006)/(9 - 4) -0.00306748 0.0429448 U (6/6/2007 a) 0.0648006 U (3/1/2006 a) (0.0429448 - 0.0648006)/(10 - 4) -0.00364264 0.0578988 U (6/1/2006 a) 0.0667178 U (4/1/2006 a) (0.0578988 - 0.0667178)/(6 - 5) -0.00881902 0.0513804 U (9/1/2006 a) 0.0667178 U (4/1/2006 a) (0.0513804 - 0.0667178)/(7 - 5) -0.00766871 0.0502301 U (12/1/2006 a) 0.0667178 U (4/1/2006 a) (0.0502301 - 0.0667178)/(8 - 5) -0.00549591 0.0494632 U (3/5/2007 a) 0.0667178 U (4/1/2006 a) (0.0494632 - 0.0667178)/(9 - 5) -0.00431365 0.0429448 U (6/6/2007 a) 0.0667178 U (4/1/2006 a) (0.0429448 - 0.0667178)/(10 - 5) -0.0047546 0.0513804 U (9/1/2006 a) 0.0578988 U (6/1/2006 a) (0.0513804 - 0.0578988)/(7 - 6) -0.0065184 0.0502301 U (12/1/2006 a) 0.0578988 U (6/1/2006 a) (0.0502301 - 0.0578988)/(8 - 6) -0.00383436 0.0494632 U (3/5/2007 a) 0.0578988 U (6/1/2006 a) (0.0494632 - 0.0578988)/(9 - 6) -0.00281186 0.0429448 U (6/6/2007 a) 0.0578988 U (6/1/2006 a) (0.0429448 - 0.0578988)/(10 - 6) -0.0037385 0.0513804 U (9/1/2006 a) 0.0502301 U (12/1/2006 a) (0.0502301 - 0.0513804)/(8 - 7) -0.00115031 0.0494632 U (3/5/2007 a) 0.0513804 U (9/1/2006 a) (0.0494632 - 0.0513804)/(9 - 7) -0.000958589 Page 1

0.0429448 U (6/6/2007 a) 0.0513804 U (9/1/2006 a) (0.0429448 - 0.0513804)/(10 - 7) -0.00281186 0.0494632 U (3/5/2007 a) 0.0502301 U (12/1/2006 a) (0.0494632 - 0.0502301)/(9 - 8) -0.000766871 0.0429448 U (6/6/2007 a) 0.0502301 U (12/1/2006 a) (0.0429448 - 0.0502301 )/(10 - 8) -0.00364264 0.0429448 U (6/6/2007 a) 0.0494632 U (3/5/2007 a) (0.0429448 - 0.0494632)/(10 - 9) -0.0065184 Number of Q values = 45 Ordered Q Values n Q 1 -0.0180215 2 -0.00881902 3 -0.00830777 4 -0.00805215 5 -0.00786043 6 -0.00766871 7 -0.00651841 8 -0.0065184 9 -0.0065184 10 -0.00569676 11 -0.00555982 12 -0.00549591 13 -0.0047546 14 -0.00447342

. 15 16 17

-0.00431365

-0.00383436

-0.0037385 18 -0.00364264 19 -0.00364264 20 -0.00364264 21 -0.00345092 22 -0.00306748 23 -0.00283742 24 -0.00282784 25 -0.00281186 26 -0.00281186 27 -0.00255624 28 -0.00230061 29 -0.00191718 30 -0.00191718 31 -0.00146984 32 -0.00142419 33 -0.00134202 34 -0.00115031 35 -0.000958589 36 -0.000766871 37 -0.000460123 38 -0.000383436 39 0.000383435 40 0.00153374 41 0.0016296 42 0.00191718 43 S! 44 45 0.0053681 0.0113113 0.0172546 I Page 2

. Sen's Estimator (Median Q) is -0.00283742 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

. C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0047546 = Q(13)

Upper limit is -0.00134202 = Q(33)

-0.00134202 < 0 indicating a downward trend in data.

Page 3

TEDE Time-Series GraDh of MW121A-2 0.03 0.025 0.02 0.015 C.

0 0

0.01 Cu I I (C

if) 0 0 CD 00 0 CD 0 C.D CO C--

0 0 0 0cq 0 0 0N 0 0 0 04 C,- (N: a)

CD i'15 CD Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW1 21 A-2 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0182515 U (1/1/2006 a) 0.0124617 U (12/1/2005 a) (0.0182515 - 0.0124617)/(2 - 1) 0.00578988 0.0142255 U (2/1/2006 a) 0.0124617 U (12/1/2005 a) (0.0142255 - 0.0124617)/(3 - 1) 0.000881902 0.016181 U (3/1/2006 a) 0.0124617 U (12/1/2005 a) (0.016181 - 0.0124617)/(4 - 1) 0.00123978 ND<0 U (4/1/2006 a) 0.0124617 U (12/1/2005 a) (0 - 0.0124617)/(5- 1) -0.00311541 0.016411 U (6/1/2006 a) 0.0124617 U (12/1/2005 a) (0.016411 - 0.0124617)/(6 - 1) 0.000789877 0.0202837 U (9/1/2006 a) 0.0124617 U (12/1/2005 a) (0.0202837 - 0.0124617)/(7 - 1) 0.00130368 0.0136503 U (12/1/2006 a) 0.0124617 U (12/1/2005 a) (0.0136503 - 0.0124617)/(8 - 1) 0.000169807 ND<0 U (3/5/2007 a) 0.0124617 U (12/1/2005 a) (0 - 0.0124617)/(9 - 1) -0.00155771 ND<0 U (4/1/2007 a) 0.0124617 U (12/1/2005 a) (0 - 0.0124617)/(10 - 1) -0.00138463 0.0128067 U (6/6/2007 a) 0.0124617 U (12/1/2005a) (0.0128067 - 0.0124617)/(11 - 1) 3.45092e-005 0.0142255 U (2/1/2006 a) 0.0182515 U (1/1/2006 a) (0.0142255 - 0.0182515)/(3 - 2) -0.00402607 0.016181 U (3/1/2006 a) 0.0182515 U (1/1/2006 a) (0.016181 - 0.0182515)/(4 - 2) -0.00103528 ND<0 U (4/1/2006 a) 0.0182515 U (1/1/2006 a) (0 - 0.0182515)/(5 - 2) -0.00608384 0.016411 U (6/1/2006 a) 0.0182515 U (1/1/2006 a) (0.016411 - 0.0182515)/(6- 2) -0.000460123 0.0202837 U (9/1/2006 a) 0.0182515 U (1/1/2006 a) (0.0202837 - 0.0182515)/(7 - 2) 0.000406442 0.0136503 U (12/1/2006 a) 0.0182515 U (1/1/2006 a) (0.0136503 - 0.0182515)/(8 - 2) -0.000766871 O ND<0 U (3/5/2007 a) 0.0182515 U (1/1/2006 a) (0 - 0.0182515)/(9 - 2) -0.00260736 ND<0 U (4/1/2007 a) 0.0182515 U (1/1/2006 a) (0 - 0.0182515)/(10 - 2) -0.00228144 0.0128067 U (6/6/2007 a) 0.0182515 U (1/1/2006 a) (0.0128067 - 0.0182515)/(11 - 2) -0.000604976 0.016181 U (3/1/2006 a) 0.0142255 U (2/1/2006 a) (0.016181 - 0.0142255)/(4 - 3) 0.00195552 ND<0 U (4/1/2006 a) 0.0142255 U (2/1/2006 a) (0 - 0.0142255)/(5 - 3) -0.00711273 0.016411 U (6/1/2006 a) 0.0142255 U (2/1/2006 a) (0.016411 - 0.0142255)/(6 - 3) 0.000728528 0.0202837 U (9/1/2006 a) 0.0142255 U (2/1/2006 a) (0.0202837 - 0.0142255)/(7 - 3) 0.00151457 0.0136503 U (12/1/2006 a) 0.0142255 U (2/1/2006 a) (0.0136503 - 0.0142255)/(8 - 3) -0.000115031 ND<0 U (3/5/2007 a) 0.0142255 U (2/1/2006 a) (0 - 0.0142255)/(9 - 3) -0.00237091 ND<0 U (4/1/2007 a) 0.0142255 U (2/1/2006 a) (0 - 0.0142255)/(10 - 3) -0.00203221 0.0128067 U (6/6/2007 a) 0.0142255 U (2/1/2006 a) (0.0128067 - 0.0142255)/(11 - 3) -0.000177339 ND<0 U (4/1/2006 a) 0.016181 U (3/1/2006 a) (0 - 0.016181)/(5- 4) -0.016181 0.016411 U (6/1/2006 a) 0.016181 U (3/1/2006 a) (0.016411 - 0.016181)/(6 - 4) 0.000115031 0.0202837 U (9/1/2006 a) 0.016181 U (3/1/2006 a) (0.0202837 - 0.016181 )/(7- 4) 0.00136759 0.0136503 U (12/1/2006 a) 0.016181 U (3/1/2006 a) (0.0136503 - 0.016181 )/(8- 4) -0.000632669 ND<0 U (3/5/2007 a) 0.016181 U (3/1/2006 a) (0- 0.016181)/(9- 4) -0.0032362 ND<0 U (4/1/2007 a) 0.016181 U (3/1/2006 a) (0- 0.016181)/(10 - 4) -0.00269683 0.0128067 U (6/6/2007 a) 0.016181 U (3/1/2006 a) (0.0128067 - 0.016181)/(11 - 4) -0.000482033 0.016411 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0.016411 - 0)/(6 - 5) 0.016411 0.0202837 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0.0202837 - 0)/(7 - 5) 0.0101419 0.0136503 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0.0136503 - 0)/(8 - 5) 0.0045501 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (4/1/2007 a) ND<0 U (4/1/2006 a) (0- 0)/(10- 5) 0 0.0128067 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0.0128067 - 0)/(11 - 5) 0.00213446 0.0202837 U (9/1/2006 a) 0.016411 U (6/1/2006 a) (0.0202837 - 0.016411)/(7 - 6) 0.0038727 0.0136503 U (12/1/2006 a) 0.016411 U (6/1/2006 a) (0.0136503 - 0.016411)/(8 - 6) -0.00138037 Page 1

-0.00547035

. 0.016411 U (6/1/2006 a) (0 - 0.016411 )/(9 - 6)

ND<O ND<0 UU (4/1/2007 (3/5/2007 a) a) 0.016411 U (6/1/2006 a) (0- 0.0i6411)/(10- 6) -0.00410276 0.0128067 U (6/6/2007 a) 0.016411 U (6/1/2006 a) (0.0128067 - 0.016411)/(11 - 6) -0.000720859 0.0136503 U (12/1/2006 a) 0.0202837 U (9/1/2006 a) (0.0136503- 0.0202837)/(8- 7) -0.00663344 ND<0 U (3/5/2007 a) 0.0202837 U (9/1/2006 a) (0 - 0.0202837)/(9 - 7) -0.0101419 ND<0 U (4/1/2007 a) 0.0202837 U (9/1/2006 a) (0 - 0.0202837)/(10 - 7) -0.00676125 0.0128067 U (6/6/2007 a) 0.0202837 U (9/1/2006 a) (0.0128067 - 0.0202837)/(11 - 7) -0.00186925 ND<0 U (3/5/2007 a) 0.0136503 U (12/1/2006 a) (0- 0.0136503)/(9 - 8) -0.0136503 ND<0 U (4/1/2007 a) 0.0136503 U (12/1/2006 a) (0- 0.0136503)/(10- 8) -0.00682515 0.0128067 U (6/6/2007 a) 0.0136503 U (12/1/2006 a) (0.0128067 - 0.0136503)/(11 - 8) -0.000281186 ND<0 U (3/5/2007 a)

ND<0 U (4/1/2007 a) (0 - 0)/(10 - 9) 0 0.0128067 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0.0128067 - 0)/(11 - 9) 0.00640337 0.0128067 U (6/6/2007 a) ND<0 U (4/1/2007 a) (0.0128067 - 0)/(1 1 - 10) 0.0128067 Number of Q values = 55 Ordered Q Values n Q 1 -0.016181 2 -0.0136503 3 -0.0101419 4 -0.00711273 5 -0.00682515 6 -0.00676125 7 -0.00663344 8 -0.00608384 9 -0.00547035 10 -0.00410276 11 -0.00402607 12 -0.0032362 13 -0.00311541 14 -0.00269683 15 -0.00260736 16 -0.00237091 17 -0.00228144 18 -0.00203221 19 -0.00186925 20 -0.00155771 21 -0.00138463 22 -0.00138037 23 -0.00103528 24 -0.000766871 25 -0.000720859 26 -0.000632669 27 -0.000604976 28 -0.000482033 29 -0.000460123 30 -0.000281186 31 -0.000177339 32 -0.000115031 33 0 34 0 Page 2

35 0 36 3.45092e-005 37 0.000115031 38 0.000169807 39 0.000406442 40 0.000728528 41 0.000789877 42 0.000881902 43 0.00123978 44 0.00130368 45 0.00136759 46 0.00151457 47 0.00195552 48 0.00213446 49 0.0038727 50 0.0045501 51 0.00578988 52 0.00640337 53 0.0101419 54 0.0128067 55 0.016411 Sen's Estimator (Median Q) is -0.000482033 Tied Group Value Members 1 0 3 Time Period Observations

. 12/1/2005 1/1/2006 1

1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 4/1/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 66 B=0 C=6 D=0 E=6 F=0 a = 2970 b = 8910 c = 220 Group Variance = 161.333 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 - 1.64485 C = 20.8924 M1 = (55 - 20.8924)/2.0 = 17.0538 M2 = (55 + 20.8924)/2.0 + 1 = 38.9462 O Lower limit is -0.00228144 = Q(17)

Upper limit is 0.000406442 = Q(39)

-0.00228144 < 0 < 0.000406442 indicating no trend in data.

Page 3

S TEDE n rA.

Time-Series Graph of MW121A-3 0.035 0.03 0.029 /

E 0.02 0

0.015 0.01 0.005 U)

(0 (0 LO C) U) C) 0 (.N CD 0 0 (0 0 CN 0 0 CO C' 04 C, 0 0q (N (N (N 0) (NI R C)

N-04 0 aM C')

U)

(N Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW121A-3 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0253834 U (1/1/2006 a) 0.0249233 U (12/1/2005 a) (0.0253834 - 0.0249233)/(2 - 1) 0.000460123 0.0171396 U (2/1/2006 a) 0.0249233 U (12/1/2005 a) (0.0171396 - 0.0249233)/(3 - 1) -0.00389187 0.0359663 U (3/1/2006 a) 0.0249233 U (12/1/2005 a) (0.0359663 - 0.0249233)/(4 - 1) 0.00368098 0.0359279 U (4/1/2006 a) 0.0249233 U (12/1/2005 a) (0.0359279 - 0.0249233)/(5 - 1) 0.00275115 0.0237347 U (6/1/2006 a) 0.0249233 U (12/1/2005 a) (0.0237347 - 0.0249233)/(6 - 1) -0.00023773 0.0343175 U (9/1/2006 a) 0.0249233 U (12/1/2005 a) (0.0343175 - 0.0249233)/(7 - 1) 0.0015657 0.0350077 U (12/1/2006 a) 0.0249233 U (12/1/2005 a) (0.0350077 - 0.0249233)/(8 - 1) 0.00144062 0.0312117 U (3/5/2007 a) 0.0249233 U (12/1/2005 a) (0.0312117 - 0.0249233)/(9 - 1) 0.000786043 ND<0 U (4/1/2007 a) 0.0249233 U (12/1/2005 a) (0 - 0.0249233)/(10 - 1) -0.00276926 0.019862 U (6/6/2007 a) 0.0249233 U (12/1/2005 a) (0.019862 - 0.0249233)/(1 1 - 1) -0;000506135 0.0171396 U (2/.1/2006 a) 0.0253834 U (1/1/2006 a) (0.0171396 - 0.0253834)/(3 - 2) -0.00824386 0.0359663 U (3/1/2006 a) 0.0253834 U (1/1/2006 a) (0.0359663 - 0.0253834)/(4 - 2) 0.00529141 0,0359279 U (4/1/2006 a) 0.0253834 U (1/1/2006 a) (0.0359279 - 0.0253834)/(5 - 2) 0.00351483 0.0237347 U (6/1/2006 a) 0.0253834 U (1/1/2006 a) (0.0237347 - 0.0253834)/(6 - 2) -0.000412193 0.0343175 U (9/1/2006 a) 0.0253834 U (1/1/2006 a) (0.0343175 - 0.0253834)/(7 - 2) 0.00178681 0.0350077 O0.0312117 U (12/1/2006 a)

U (3/5/2007 a)

ND<0 U (4/1/2007 a) 0.0253834 0.0253834 U (1/1/2006 U (1/1/2006 a) a)

(0.0350077 - 0.0253834)/(8 (0.0312117 - 0.0253834)/(9

- 2)

- 2) 0.00160404 0.000832603 0.0253834 U (1/1/2006 a) (0 - 0.0253834)/(10 - 2) -0.00317293 0.019862 U (6/6/2007 a) 0.0253834 U (1/1/2006 a) (0.019862 - 0.0253834)/(11 - 2) -0.000613497 0.0359663 U (3/1/2006 a) 0.0171396 U (2/1/2006 a) (0.0359663 - 0.0171396)/(4 - 3) 0.0188267 0.0359279 U (4/1/2006 a) 0.0171396 U (2/1/2006 a) (0.0359279 - 0.0171396)/(5 - 3) 0.00939417 0.0237347 U (6/1/2006 a) 0.0171396 U (2/1/2006 a) (0.0237347 - 0.0171396)/(6 - 3) 0.00219836 0.0343175 U (9/1/2006 a) 0.0171396 U (2/1/2006 a) (0.0343175 - 0.0171396)/(7- 3) 0.00429448 0.0350077 U (12/1/2006 a) 0.0171396 U (2/1/2006 a) (0.0350077- 0.0171396)/(8 - 3) 0.00357362 0.0312117 U (3/5/2007 a) 0.0171396 U (2/1/2006 a) (0.0312117 - 0.0171396)/(9 - 3) 0.00234535 ND<0 U (4/1/2007 a) 0.0171396 U (2/1/2006 a) (0 - 0.0171396)/(10 - 3) -0.00244851 0.019862 U (6/6/2007 a) 0.0171396 U (2/1/2006 a) (0.019862 - 0.0171396)/(11 - 3) 0.000340299 0.0359279 U (4/1/2006 a) 0.0359663 U (3/1/2006 a) (0.0359279 - 0.0359663)/(5 - 4) -3.8344e-005 0.0237347 U (6/1/2006 a) 0.0359663 U (3/1/2006 a) (0.0237347 - 0.0359663)/(6 - 4) -0.0061158 0.0343175 U (9/1/2006 a) 0.0359663 U (3/1/2006 a) (0.0343175 - 0.0359663)/(7 - 4) -0.000549591 0.0350077 U (12/1/2006 a) 0.0359663 U (3/1/2006 a) (0.0350077 - 0.0359663)/(8 - 4) -0.000239647 0.0312117 U (3/5/2007 a) 0.0359663 U (3/1/2006 a) (0.0312117 - 0.0359663)/(9 - 4) -0.00095092 ND<0 U (4/1/2007 a) 0.0359663 U (3/1/2006 a) (0 - 0.0359663)/(10- 4) -0.00599438 0.019862 U (6/6/2007 a) 0.0359663 U (3/1/2006 a) (0.019862 - 0.0359663)/(11 - 4) -0.00230061 0.0237347 U (6/1/2006 a) 0.0359279 U (4/1/2006 a) (0.0237347 - 0.0359279)/(6 - 5) -0.0121933 0.0343175 U (9/1/2006 a) 0.0359279 U (4/1/2006 a) (0.0343175 - 0.0359279)/(7 - 5) -0.000805214 0.0350077 U (12/1/2006 a) 0.0359279 U (4/1/2006 a) (0M0350077 - 0.0359279)/(8 - 5) -0.000306748 0.0312117 U (3/5/2007 a) 0.0359279 U (4/1/2006 a) (0.0312117 - 0.0359279)/(9 - 5) -0.00117906 ND<0 U (4/1/2007 a) 0.0359279 U (4/1/2006 a) (0- 0.0359279)/(10- 5) -0.00718558 0.019862 U (6/6/2007 a) 0.0359279 U (4/1/2006 a) (0.019862 - 0.0359279)/(11 - 5) -0.00267766 0.0343175 U (9/1/2006 a) 0.0237347 U (6/1/2006 a) (0.0343175 - 0.0237347)/(7 - 6) 0.0105828 0.0350077 U (12/1/2006 a) 0.0237347 U (6/1/2006 a) (0.0350077 - 0.0237347)/(8 - 6) 0.0056365 Page 1

(0.0312117 - 0.0237347)/(9 - 6) 0.00249233 0.0237347 U (6/1/2006 a)

ND<0 U (4/1/2007 a) 0.0237347 U (6/1/2006 a) (0 - 0.0237347)/(10 - 6) -0.00593367 0.0312117 U (3/5/2007 a) 0.019862 U (6/6/2007 a) 0.0237347 U (6/1/2006 a) (0.019862 - 0.0237347)/(11 - 6) -0.00077454 0.0350077 U (12/1/2006 a) 0.0343175 U (9/1/2006 a) (0.0350077 - 0.0343175)/(8 - 7) 0.000690184 0.0312117 U (3/5/2007 a) 0.0343175 U (9/1/2006 a) (0.0312117 - 0.0343175)/(9 - 7) -0.00155291 ND<0 U (4/1/2007 a) 0.0343175 U (9/1/2006 a) (0- 0.0343175)/(10- 7) -0.0114392 0.019862 U (6/6/2007 a) 0.0343175 U (9/1/2006 a) (0.019862 - 0.0343175)/(11 - 7) -0.00361388 0.0312117 U (3/5/2007 a) 0.0350077 U (12/1/2006 a) (0.0312117 - 0.0350077)/(9 - 8) -0.00379601 ND<0 U (4/1/2007 a) 0.0350077 U (12/1/2006 a) (0- 0.0350077)/(10- 8) -0.0175038 0.019862 U (6/6/2007 a) 0.0350077 U (12/1/2006 a) (0.019862 - 0.0350077)/(11 - 8) -0.00504857 ND<0 U (4/1/2007 a) 0.0312117 U (3/5/2007 a) (0 - 0.0312117)/(10 - 9) -0.0312117 0.019862 U (6/6/2007 a) 0.0312117 U (3/5/2007 a) (0.019862 - 0.0312117)/(11 - 9) -0.00567485 0.019862 U (6/6/2007 a) ND<0 U (4/1/2007 a) (0.019862 - 0)/(11 - 10) 0.019862 Number of Q values = 55 Ordered o Values n Q 1 -0.0312117 2 -0.0175038 3 -0.0121933 4 -0.0114392 5 -0.00824386 6 -0.00718558 7 -0.0061158 8 -0.00599438 9 -0.00593367 10 -0.00567485 11 -0.00504857 12 -0.00389187 13 -0.00379601 14 -0.00361388 15 -0.00317293 16 -0.00276926 17 -0.00267766 18 -0.00244851 19 -0.00230061 20 -0.00155291 21 -0.00117906 22 -0.00095092 23 -0.000805214 24 -0.00077454 25 -0.000613497 26 -0.000549591 27 -0.000506135 28 -0.000412193 29 -0.000306748 30 -0.000239647 31 -0.00023773 32 -3.8344e-005 33 0.000340299 34 0.000460123 Page 2

36 35 0.000786043 0.000690184 37 0.000832603 38 0.00144062 39 0.0015657 40 0.00160404 41 0.00178681 42 0.00219836 43 0.00234535 44 0.00249233 45 0.00275115 46 0.00351483 47 0.00357362 48 0.00368098 49 0.00429448 50 0.00529141 51 0.0056365 52 0.00939417 53 0.0105828 54 0.0188267 55 0.019862 Sen's Estimator (Median Q) is -0.000412193 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 O 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 4/1/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.00267766 = Q(17)

Upper limit is 0.0015657 = Q(39)

-0.00267766 < 0 < 0.0015657 indicating no trend in data.

Page 3

TEDE E

2 0

0 u

(0 CD ((0 (0 '

LO (D (0 C, C> 0 N-CD 0) 0o 0> 0 0 0 CD QC CDCDC 0*

0N C>

- (N (o I- C' Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW121A-4 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.288344 U (1/1/2006 a) 0.455683 U (12/1/2005 a) (0.288344 - 0.455683)/(2 - 1) -0.16734 0.28681 U (2/1/2006 a) 0.455683 U (12/1/2005 a) (0.28681 - 0.455683)/(3 - 1) -0.0844368 0.249233 U (3/1/2006 a) 0.455683 U (12/1/2005 a) (0.249233 - 0.455683)/(4 - 1) -0.0688168 0.248466 U (4/1/2006 a) 0.455683 U (12/1/2005 a) (0.248466 - 0.455683)/(5 - 1) -0.0518043 0.217791 U (6/1/2006 a) 0.455683 U (12/1/2005 a) (0.217791 - 0.455683)/(6 - 1) -0.0475784 0.22661 U (9/1/2006 a) 0.455683 U (12/1/2005 a) (0:22661 - 0.455683)/(7 - 1) -0.0381788 0.21319 U (12/1/2006 a) 0.455683 U (12/1/2005 a) (0.21319 - 0.455683)/(8 - 1) -0.0346419 0.230061 U (3/5/2007 a) 0.455683 U (12/1/2005 a) (0.230061 - 0.455683)/(9 - 1) -0.0282028 0.234663 U (4/1/2007 a) 0.455683 U (12/1/2005 a) (0.234663 - 0.455683)/(10 - 1) -0.0245579 0.198236 U (6/6/2007 a) 0.455683 U (12/1/2005 a) (0.198236 - 0.455683)/(11 - 1) -0.0257447 0.28681 U (2/1/2006 a) 0.288344 U (1/1/2006 a) (0.28681 - 0.288344)/(3 - 2) -0.00153374 0.249233 U (3/1/2006 a) 0.288344 U (1/1/2006 a) (0.249233 - 0.288344)/(4 - 2) -0.0195552 0.248466 U (4/1/2006 a) 0.288344 U (1/1/2006 a) (0.248466 - 0.288344)/(5 - 2) -0.0132924 0.217791 U (6/1/2006 a) 0.288344 U (1/1/2006 a) (0.217791 - 0.288344)/(6- 2) -0.017638 0.22661 U (9/1/2006 a) 0.288344 U (1/1/2006 a) (0.22661 - 0.288344)/(7 - 2) -0.0123466

.0.230061 0.21319 U (12/1/2006 a)

U (3/5/2007 a) 0.234663 U (4/1/2007 a) 0.288344 0.288344 0.288344 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.21319- 0.288344)/(8- 2)

(0.230061 - 0.288344)/(9 - 2)

(0.234663 - 0.288344)/(10 - 2)

-0.0125256

-0.00832603

-0.00671012 0.198236 U (6/6/2007 a) 0.288344 U (1/1/2006 a) (0.198236 - 0.288344)/(11 - 2) -0.0100119 0.249233 U (3/1/2006 a) 0.28681 U (2/1/2006 a) (0.249233 - 0.28681)/(4 - 3) -0.0375767 0.248466 U (4/1/2006 a) 0.28681 U (2/1/2006 a) (0.248466 - 0.28681)/(5 - 3) -0.0191718 0.217791 U (6/1/2006 a) 0.28681 U (2/1/2006 a) (0.217791 - 0.28681)/(6 - 3) -0.0230061 0.22661 U (9/1/2006 a) 0.28681 U (2/1/2006 a) (0.22661 - 0.28681)/(7 - 3) -0.0150498 0.21319 U (12/1/2006 a) 0.28681 U (2/1/2006 a) (0.21319- 0.28681)/(8 - 3) -0.0147239 0.230061 U (3/5/2007 a) 0.28681 U (2/1/2006 a) (0.230061 - 0.28681)/(9 - 3) -0.00945808 0.234663 U (4/1/2007 a) 0.28681 U (2/1/2006 a) (0.234663 - 0.28681)/(10- 3) -0.00744961 0.198236 U (6/6/2007 a) 0.28681 U (2/1/2006 a) (0.198236 - 0.28681)/(11 - 3) -0.0110717 0.248466 U (4/1/2006 a) 0.249233 U (3/1/2006 a) (0.248466 - 0.249233)/(5 - 4) -0.000766871 0.217791 U (6/1/2006 a) 0.249233 U (3/1/2006 a) (0.217791 - 0.249233)/(6- 4) -0.0157209 0.22661 U (9/1/2006 a) 0.249233 U (3/1/2006 a) (0.22661 - 0.249233)/(7 - 4) -0.0075409 0.21319 U (12/1/2006 a) 0.249233 U (3/1/2006 a) (0.21319 - 0.249233)/(8- 4) -0.00901074 0.230061 U (3/5/2007 a) 0.249233 U (3/1/2006 a) (0.230061 - 0.249233)/(9 - 4) -0.00383436 0.234663 U (4/1/2007 a) 0.249233 U (3/1/2006 a) (0.234663 - 0.249233)/(10 - 4) -0.00242843

0. 198236 U (6/6/2007 a) 0.249233 U (3/1/2006 a) (0.198236 - 0.249233)/(11 - 4) -0.00728528 0.217791 U (6/1/2006 a) 0.248466 U (4/1/2006 a) (0.217791 - 0.248466)/(6 - 5) -0.0306748 0.22661 U (9/1/2006 a) 0.248466 U (4/1/2006 a) (0.22661 - 0.248466)/(7 - 5) -0.0109279 0.21319 U (12/1/2006 a) 0.248466 U (4/1/2006 a) (0.21319 - 0.248466)/(8- 5) -0.0117587 0.230061 U (3/5/2007 a) 0.248466 U (4/1/2006 a) (0.230061 - 0.248466)/(9 - 5) -0.00460123 0.234663 U (4/1/2007 a) 0.248466 U (4/1/2006 a) (0.234663 - 0.248466)/(10 - 5) -0.00276074 0.198236 U (6/6/2007 a) 0.248466 U (4/1/2006 a) (0.198236 - 0.248466)/(11 - 5) -0.00837168 0.22661 U (9/1/2006 a) 0.217791 U (6/1/2006 a) (0.22661 - 0.217791)/(7- 6) 0.00881902 0.21319 U (12/1/2006 a) 0.217791 U (6/1/2006 a) (0.21319 - 0.217791)/(8 - 6) -0.00230061 Page 1

. 0.217791 U (6/1/2006 a) (0.230061 - 0.217791)/(9- 6) 0.00408998 0.234663 0.230061 UU(4/1/2007 (3/5/2007 a) a) 0.217791 U (6/1/2006 a) (0.234663 - 0.217791)/(10- 6) 0.00421779 0.198236 U (6/6/2007 a) 0.217791 U (6/1/2006 a) (0.198236 - 0.217791)/(11 - 6) -0.00391104 0.21319 U (12/1/2006 a) 0.22661 U (9/1/2006 a) (0.21319 - 0.22661)/(8 - 7) -0.0134202 0.230061 U (3/5/2007 a) 0.22661 U (9/1/2006 a) (0.230061 - 0.22661)/(9 - 7) 0.00172546 0.234663 U (4/1/2007 a) 0.22661 U (9/1/2006 a) (0.234663 - 0.22661)/(10 - 7) 0.00268405 0.198236 U (6/6/2007 a) 0.22661 U (9/1/2006 a) (0.198236 - 0.22661)/(11 - 7) -0.00709356 0.230061 U (3/5/2007 a) 0.21319 U (12/1/2006 a) (0.230061 - 0.21319)/(9 - 8) 0.0168712 0.234663 U (4/1/2007 a) 0.21319 U (12/1/2006 a) (0.234663 - 0.21319)/(10 - 8) 0.0107362 0.198236 U (6/6/2007 a) 0.21319 U (12/1/2006 a) (0.198236 - 0.21319)/(11 - 8) -0.00498466 0.230061 U (3/5/2007 a) 0.234663 U (4/1/2007 a) (0.234663 - 0.230061)/(10 - 9) 0.00460123 0.198236 U (6/6/2007 a) 0.230061 U (3/5/2007 a) (0.198236 - 0.230061)/(11 - 9) -0.0159126 0.198236 U (6/6/2007 a) 0.234663 U (4/1/2007 a) (0.198236 - 0.234663)/(11 - 10) -0.0364264 Number of Q values = 55 Ordered Q Values n Q 1 -0.16734 2 -0.0844368 3 -0.0688168 4 -0.0518043 5 -0.0475784 6 -0.0381788 7 -0.0375767 8 -0.0364264 9 -0.0346419 10 -0.0306748 11 -0.0282028 12 -0.0257447 13 -0.0245579 14 -0.0230061 15 -0.0195552 16 -0.0191718 17 -0.017638 18 -0.0159126 19 -0.0157209 20 -0.0150498 21 -0.0147239 22 -0.0134202 23 -0.0132924 24 -0.0125256 25 -0.0123466 26 -0.0117587 27 -0.0110717 28 -0.0109279 29 -0.0100119 30 -0.00945808 31 -0.00901074 32 -0.00837168 33 -0.00832603 34 -0.0075409 Page 2

O 36 35 -0.00728528

-0.00744961 37 -0.00709356 38 -0.00671012 39 -0.00498466 40 -0.00460123 41 -0.00391104 42 -0.00383436 43 -0.00276074 44 -0.00242843 45 -0.00230061 46 -0.00153374 47 -0.000766871 48 0.00172546 49 0.00268405 50 0.00408998 51 0.00421779 52 0.00460123 53 0.00881902 54 0.0107362 55 0.0168712 Sen's Estimator (Median Q) is -0.0109279 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 4/1/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is -0.017638 = Q(17)

Upper limit is -0.00498466 = 0(39)

-0.00498466 < 0 indicating a downward trend in data.

Page 3

TEDE 0.04 Time-Series Graph of MW121A-5 o.o35; 0.03 0.025 0.02 C

0 0.015 U

0.01 0.005 LO (0 cc 0 C,0l o CD nD 0 C) 0DI o4"D 04-. -)OO C>

0 C Q C,-

I, Cz C, C

- 04 04 amO ple Date Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW1 21 A-5 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 0.0306748 U (1/1/2006 a) 0.0229294 U (12/1/2005 a) (0.0306748 - 0.0229294)/(2 - 1) 0.0077454 0.0259586 U (2/1/2006 a) 0.0229294 U (12/1/2005 a) (0.0259586 - 0.0229294)/(3 - 1) 0.00151457 0.0295629 U (3/1/2006 a) 0.0229294 U (12/1/2005 a) (0.0295629 - 0.0229294)/(4 - 1) 0.00221114 0.0221626 U (4/1/2006 a) 0.0229294 U (12/1/2005 a) (0.0221626 - 0.0229294)/(5 - 1) -0.000191718 0.0229678 U (6/1/2006 a) 0.0229294 U (12/1/2005 a) (0.0229678 - 0.0229294)/(6 - 1) 7.6686e-006 0.0234663 U (9/1/2006 a) 0.0229294 U (12/1/2005 a) (0.0234663 - 0.0229294)/(7 - 1) 8.94683e-005 0.019977 U (12/1/2006 a) 0.0229294 U (12/1/2005 a) (0.019977 - 0.0229294)/(8 - 1) -0.000421779 0.032362 U (3/5/2007 a) 0.0229294 U (12/1/2005 a) (0.032362 - 0.0229294)/(9 - 1) 0.00117906 0.0321702 U (6/6/2007 a) 0.0229294 U (12/1/2005 a) (0.0321702 - 0.0229294)/(10 - 1) 0.00102676 0.0259586 U (2/1/2006 a) 0.0306748 U (1/1/2006 a) (0.0259586 - 0.0306748)/(3 - 2) -0.00471626 0.0295629 U (3/1/2006 a) 0.0306748 U (1/1/2006 a) (0.0295629 - 0.0306748)/(4 - 2) -0.000555982 0.0221626 U (4/1/2006 a) 0.0306748 U (1/1/2006 a) (0.0221626 - 0.0306748)/(5 - 2) -0.00283742 0.0229678 U (6/1/2006 a) 0.0306748 U (1/1/2006 a) (0.0229678 - 0.0306748)/(6 - 2) -0.00192676 0.0234663 U (9/1/2006 a) 0.0306748 U (1/1/2006 a) (0.0234663 - 0.0306748)/(7 - 2) -0.00144172 0.019977 U (12/1/2006 a) 0.0306748 U (1/1/2006 a) (0.019977 - 0.0306748)/(8 - 2) -0.00178298 0.032362 U (3/5/2007 a) 0.0306748 U (1/1/2006 a) (0.032362 - 0.0306748)/(9 - 2) 0.000241017 0.0321702 U (6/6/2007 a) 0.0306748 U (1/1/2006 a) (0.0321702 - 0.0306748)/(10 - 2) 0.000186925 0.0295629 U (3/1/2006 a) 0.0259586 U (2/1/2006 a) (0.0295629 - 0.0259586)/(4 - 3) 0.00360429 0.0221626 U (4/1/2006 a) 0.0259586 U (2/1/2006 a) (0.0221626 - 0.0259586)/(5- 3) -0.00189801 0.0229678 U (6/1/2006 a) 0.0259586 U (2/1/2006 a) (0.0229678 - 0.0259586)/(6 - 3) -0.000996933 0.0234663 U (9/1/2006 a) 0.0259586 U (2/1/2006 a) (0.0234663 - 0.0259586)/(7 - 3) -0.000623083 0.019977 U (12/1/2006 a) 0.0259586 U (2/1/2006 a) (0.019977 - 0.0259586)/(8- 3) -0.00119632 0.032362 U (3/5/2007 a) 0.0259586 U (2/1/2006 a) (0.032362 - 0.0259586)/(9 - 3) 0.00106723 0.0321702 U (6/6/2007 a) 0.0259586 U (2/1/2006 a) (0.0321702 - 0.0259586)/(10 - 3) 0.000887379 0.0221626 U (4/1/2006 a) 0.0295629 U (3/1/2006 a) (0.0221626 - 0.0295629)/(5 - 4) -0.00740031 0.0229678 U (6/1/2006 a) 0.0295629 U (3/1/2006 a) (0.0229678 - 0.0295629)/(6 - 4) -0.00329755 0.0234663 U (9/1/2006 a) 0.0295629 U (3/1/2006 a) (0.0234663 - 0.0295629)/(7 - 4) -0.00203221 0.019977 U (12/1/2006 a) 0.0295629 U (3/1/2006 a) (0.019977 - 0.0295629)/(8- 4) -0.00239647 0.032362 U (3/5/2007 a) 0.0295629 U (3/1/2006 a) (0.032362 - 0.0295629)/(9 - 4) 0.000559816 0.0321702 U (6/6/2007 a). 0.0295629 U (3/1/2006 a) (0.0321702 - 0.0295629)/(10 - 4) 0.00043456 0.0229678 U (6/1/2006 a) 0.0221626 U (4/1/2006 a) (0.0229678 - 0.0221626)/(6 - 5) 0.000805214 0.0234663 U (9/1/2006 a) 0.0221626 U (4/1/2006 a) (0.0234663 - 0.0221626)/(7 - 5) 0.000651841 0.019977 U (12/1/2006 a) 0.0221626 U (4/1/2006 a) (0.019977- 0.0221626)/(8- 5) -0.000728528 0.032362 U (3/5/2007 a) 0.0221626 U (4/1/2006 a) (0.032362 - 0.0221626)/(9 - 5) 0.00254985 0.0321702 U (6/6/2007 a) 0.0221626 U (4/1/2006 a) (0.0321702 - 0.0221626)/(10 - 5) 0.00200153 0.0234663 U (9/1/2006 a) 0.0229678 U (6/1/2006 a) (0.0234663 - 0.0229678)/(7 - 6) 0.000498467 0.019977 U (12/1/2006 a) 0.0229678 U (6/1/2006 a) (0.019977 - 0.0229678)/(8 - 6) -0.0014954 0.032362 U (3/5/2007 a) 0.0229678 U (6/1/2006 a) (0.032362 - 0.0229678)/(9 - 6) 0.00313139 0.0321702 U (6/6/2007 a) 0.0229678 U (6/1/2006 a) (0.0321702 - 0.0229678)/(10 - 6) 0.00230061 0.019977 U (12/1/2006 a) 0.0234663 U (9/1/2006 a) (0.019977 - 0.0234663)/(8 - 7) -0.00348926 0.032362 U (3/5/2007 a) 0.0234663 U (9/1/2006 a) (0.032362 - 0.0234663)/(9 - 7) 0.00444785 Page 1

0.0321702 U (6/6/2007 a) 0.0234663 U (9/1/2006 a) (0.0321702 - 0.0234663)/(10 - 7) 0.00290133 0.032362 U (3/5/2007 a) 0.019977 U (12/1/2006 a) (0.032362 - 0.019977)/(9 - 8) 0.012385 0.0321702 U (6/6/2007 a) 0.019977 U (12/1/2006 a) (0.0321702 - 0.019977)/(10 - 8) 0.00609663 0.0321702 U (6/6/2007 a) 0.032362 U (3/5/2007 a) (0.0321702 - 0.032362)/(10 - 9) -0.000191718 Number of Q values = 45 Ordered 0 Values n Q 1 -0.00740031 2 -0.00471626 3 -0.00348926 4 -0.00329755 5 -0.00283742 6 -0.00239647 7 -0.00203221 8 -0.00192676 9 -0.00189801 10 -0.00178298 11 -0.0014954 12 -0.00144172 13 -0.00119632 14 -0.000996933 15 -0.000728528 16 -0.000623083 17 -0.000555982 18 -0.000421779 19 -0.000191718 20 -0.000191718 21 7.6686e-006 22 8.94683e-005 23 0.000186925 24 0.000241017 25 0.00043456 26 0.000498467 27 0.000559816 28 0.000651841 29 0.000805214 30 0.000887379 31 0.00102676 32 0.00106723 33 0.00117906 34 0.00151457 35 0.00200153 36 0.00221114 37 0.00230061 38 0.00254985 39 0.00290133 40 0.00313139 41 0.00360429 42 0.00444785 43 0.00609663 44 0.0077454 45 0.012385 Page 2

O Sen's Estimator (Median Q) is 0.000186925 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c=180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 18.39

M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.00119632 = Q(13)

Upper limit is 0.00117906 = Q(33)

-0.00119632 < 0 < 0.00117906 indicating no trend in data.

Page 3

TEDE E

2 0

r 0

C-)

LO( 0C) C> r o

o 0

o to00 00 N0 0 C

C) N 0C-LO r.- -e Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MWR-122D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0205138 U (1/1/2006 a) 0.360209 U (12/1/2005 a) (0.0205138 - 0.360209)/(2 - 1) -0.339695 0.021319 U (2/1/2006 a) 0.360209 U (12/1/2005 a) (0.021319 - 0.360209)/(3 - 1) -0.169445 0.0240414 U (3/1/2006 a) 0.360209 U (12/1/2005 a) (0.0240414 - 0.360209)/(4 - 1) -0.112056 0.021204 U (4/1/2006 a) 0.360209 U (12/1/2005 a) (0.021204 - 0.360209)/(5 - 1) -0.0847512 0.0166028 U (6/1/2006 a) 0.360209 U (12/1/2005 a) (0.0166028 - 0.360209)/(6 - 1) -0.0687212 0.0158359 U (9/1/2006 a) 0.360209 U (12/1/2005 a) (0.0158359 - 0.360209)/(7 - 1) -0.0573955 ND<O U (12/1/2006 a) 0.360209 U (12/1/2005 a) (0 - 0.360209)/(8 - 1) -0.0514584 ND<0 U (3/5/2007 a) 0.360209 U (12/1/2005 a) (0 - 0.360209)/(9 - 1) -0.0450261 0.0197853 U (6/6/2007 a) 0.360209 U (12/1/2005 a) (0.0197853 - 0.360209)/(10 - 1) -0.0378248 0.021319 U (2/1/2006 a) 0.0205138 U (1/1/2006 a) (0.021319 - 0.0205138)/(3 - 2) 0.000805214 0.0240414 U (3/1/2006 a) 0.0205138 U (1/1/2006 a) (0.0240414 - 0.0205138)/(4 - 2) 0.0017638 0.021204 U (4/1/2006 a) 0.0205138 U (1/1/2006 a) (0.021204 - 0.0205138)/(5 - 2) 0.000230061 0.0166028 U (6/1/2006 a) 0.0205138 U (1/1/2006 a) (0.0166028 - 0.0205138)/(6 - 2) -0.000977761 0.0158359 U (9/1/2006 a) 0.0205138 U (1/1/2006 a) (0.0158359 - 0.0205138)/(7 - 2) -0.000935583 ND<0 U (12/1/2006 a) 0.0205138 U (1/1/2006 a) (0- 0.0205138)/(8- 2) -0.00341897 ND<0 U (3/5/2007 a) 0.0205138 U (1/1/2006 a) (0 - 0.0205138)/(9 - 2) -0.00293054 0.0197853 U (6/6/2007 a) 0.0205138 U (1/1/2006 a) (0.0197853- 0.0205138)/(10- 2) -9.1066e-005 0.0240414 U (3/1/2006 a) 0.021319 U (2/1/2006 a) (0.0240414 - 0.021319)/(4- 3) 0.00272239 0.021204 U (4/1/2006 a) 0.021319 U (2/1/2006 a) (0.021204- 0.021319)/(5 - 3) -5.7515e-005 0.0166028 U (6/1/2006 a) 0.021319 U (2/1/2006 a) (0.0166028 - 0.021319)/(6 - 3) -0.00157209 0.0158359 U (9/1/2006 a) 0.021319 U (2/1/2006 a) (0.0158359 - 0.021319)/(7 - 3) -0.00137078 ND<0 U (12/1/2006 a) 0.021319 U (2/1/2006 a) (0 - 0.021319)/(8 - 3) -0.0042638 ND<0 U (3/5/2007 a) 0.021319 U (2/1/2006 a) (0 - 0.021319)/(9 - 3) -0.00355317 0.0197853 U (6/6/2007 a) 0.021319 U (2/1/2006 a) (0.0197853 - 0.021319)/(10 - 3) -0.000219106 0.021204 U (4/1/2006 a) 0.0240414 U (3/1/2006 a) (0.021204 - 0.0240414)/(5- 4) -0.00283742 0.0166028 U (6/1/2006 a) 0.0240414 U (3/1/2006 a) (0.0166028 - 0.0240414)/(6- 4) -0.00371932 0.0158359 U (9/1/2006 a) 0.0240414 U (3/1/2006 a) (0.0158359 - 0.0240414)/(7 - 4) -0.00273517 ND<0 U (12/1/2006 a) 0.0240414 U (3/1/2006 a) (0- 0.0240414)/(8 - 4) -0.00601035 ND<0 U (3/5/2007 a) 0.0240414 U (3/1/2006 a) (0 - 0.0240414)/(9 - 4) -0.00480828 0.0197853 U (6/6/2007 a) 0.0240414 U (3/1/2006 a) (0.0197853 - 0.0240414)/(10 - 4) -0.000709356 0.0166028 U (6/1/2006 a) 0.021204 U (4/1/2006 a) (0.0166028 - 0.021204)/(6- 5) -0.00460123 0.0158359 U (9/1/2006 a) 0.021204 U (4/1/2006 a) (0.0158359 - 0.021204)/(7 - 5) -0.00268405 ND<0 U (12/1/2006 a) 0.021204 U (4/1/2006 a) (0 - 0.021204)/(8 - 5) -0.007068 ND<0 U (3/5/2007 a) 0.021204 U (4/1/2006 a) (0 - 0.021204)/(9 - 5) -0.005301 0.0197853 U (6/6/2007 a) 0.021204 U (4/1/2006 a) (0.0197853 - 0.021204)/(10- 5) -0.000283742 0.0158359 U (9/1/2006 a) 0.0166028 U (6/1/2006 a) (0.0158359- 0.0166028)/(7- 6) -0.000766871 ND<0 U (12/1/2006 a) 0.0166028 U (6/1/2006 a) (0 - 0.0166028)/(8 - 6) -0.00830138 ND<0 U (3/5/2007 a) 0.0166028 U (6/1/2006 a) (0 - 0.0166028)/(9 - 6) -0.00553425 0.0197853 U (6/6/2007 a) 0.0166028 U (6/1/2006 a) (0.0197853 - 0.0166028)/(10 - 6) 0.000795629 0.0158359 U (9/1/2006 a)

N0<0 U (12/1/2006 a) (0 - 0.0158359)/(8 - 7) -0.0158359 ND<O U (3/5/2007 a) 0.0158359 U (9/1/2006 a) (0 - 0.0158359)/(9 - 7) -0.00791794 Page 1

0.0197853 U (6/6/2007 a) 0.0158359 U (9/1/2006 a) (0.0197853 - 0.0158359)/(10 - 7) 0.00131646 ND<O U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 0.0197853 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0.0197853- 0)/(10- 8) 0.00989264 0.0 197853 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0.0197853- 0)/(10- 9) 0.0197853 Number of Q values = 45 Ordered Q Values n Q 1 -0.339695 2 -0.169445 3 -0.112056 4 -0.0847512 5 -0.0687212 6 -0.0573955 7 -0.0514584 8 -0.0450261 9 -0.0378248 10 -0.0158359 11 -0.00830138 12 -0.00791794 13 -0.007068 14 -0.00601035

. 15 16 17

-0.00553425

-0.005301

-0.00480828 18 -0.00460123 19 -0.0042638 20 -0.00371932 21 -0.00355317 22 -0.00341897 23 -0.00293054 24 -0.00283742 25 -0.00273517 26 -0.00268405 27 -0.00157209 28 -0.00137078 29 -0.000977761 30 -0.000935583 31 -0.000766871 32 -0.000709356 33 -0.000283742 34 -0.000219106 35 -9.1066e-005 36 -5.7515e-005 37 0 38 0.000230061 39 0.000795629 40 0.000805214 41 0.00131646 42 0.0017638 43 O 44 45 0.00272239 0.00989264 0.0197853 Page 2

. Sen's Estimator (Median Q) is -0.00293054 Tied Group Value Members 1 0 2 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A =18 B=0 C=0 D=0 E=2 F=0 a = 2250 b = 6480

. c = 180 Group,Variance = 124 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 18.3163 M1 = (45 - 18.3163)/2.0 = 13.3418 M2 = (45 + 18.3163)/2.0 + 1 = 32.6582 Lower limit is -0.007068 = 0(13)

Upper limit is -0.000283742 = Q(33)

-0.000283742 < 0 indicating a downward trend in data.

Page 3

TEDE E

2 E

c 0) 0 cD CD LO CD (0 0 0 C'-

o 0 CD 0 0 0 0 0 o~ o> 01 00 N N 0Q CD Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-122S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0285276 U (1/11/2006 a) 0.0245399 U (12/1/2005 a) (0.0285276 - 0.0245399)/(2 - 1) 0.00398773 0.0931748 U (2/1/2006 a) 0.0245399 U (12/1/2005 a) (0.0931748 - 0.0245399)/(3 - 1) 0.0343175 0.0132669 U (3/1/2006 a) 0.0245399 U (12/1/2005 a) (0.0132669 - 0.0245399)/(4 - 1) -0.00375767 0.0227761 U (4/1/2006 a) 0.0245399 U (12/1/2005 a) (0.0227761 - 0.0245399)/(5 - 1) -0.000440951 0.0425613 U (6/1/2006 a) 0.0245399 U (12/1/2005 a) (0.0425613 - 0.0245399)/(6 - 1) 0.00360429 ND<0 U (9/1/2006 a) 0.0245399 U (12/1/2005 a) (0 - 0.0245399)/(7 - 1) -0.00408998 0.204846 U (12/1/2006 a) 0.0245399 U (12/1/2005 a) (0.204846 - 0.0245399)/(8 - 1) 0.0257581 ND<0 U (6/6/2007 a) 0.0245399 U (12/1/2005 a) (0 - 0.0245399)/(9 - 1) -0.00306748 0.0931748 U (2/1/2006 a) 0.0285276 U (1/1/2006 a) (0.0931748 - 0.0285276)/(3 - 2) 0.0646472 0.0132669 U (3/1/2006 a) 0.0285276 U (1/1/2006 a) (0.0132669 - 0.0285276)/(4 - 2) -0.00763037 0.0227761 U (4/1/2006 a) 0.0285276 U (1/1/2006 a) (0.0227761 - 0.0285276)/(5 - 2) -0.00191718 0.0425613 U (6/1/2006 a) 0.0285276 U (1/1/2006 a) (0.0425613 - 0.0285276)/(6 - 2) 0.00350844 ND<0 U (9/1/2006 a) 0.0285276 U (1/1/2006 a) (0 - 0.0285276)/(7 - 2) -0.00570552 0.204846 U (12/1/2006 a) 0.0285276 U (1/1/2006 a) (0.204846 - 0.0285276)/(8 - 2) 0.0293864 ND<0 U (6/6/2007 a) 0.0285276 U (1/1/2006 a) (0 - 0.0285276)/(9 - 2) -0.00407537

. 0.0227761 0.0132669 U (4/1/2006 (3/1/2006 a) 0.0425613 U (6/1/2006 a) 0.0931748 0.0931748 0.0931748 U (2/1/2006 U (2/1/2006 U (2/1/2006 a) a)

a)

(0.0132669 - 0.0931748)/(4 - 3)

(0.0227761 - 0.0931748)/(5 - 3)

(0.0425613 - 0.0931748)/(6 - 3)

-0.079908

-0.0351994

-0.0168712 ND<0 U (9/1/2006 a) 0.0931748 U (2/1/2006 a) (0 - 0.0931748)/(7 - 3) -0.0232937 0.204846 U (12/1/2006 a) 0.0931748 U (2/1/2006 a) (0.204846 - 0.0931748)/(8 - 3) 0.0223343 ND<0 U (6/6/2007 a) 0.0931748 U (2/1/2006 a) (0 - 0.0931748)/(9 - 3) -0.0155291 0.0227761 U (4/1/2006 a) 0.0132669 U (3/1/2006 a) (0.0227761 - 0.0132669)/(5- 4) 0.0095092 0.0425613 U (6/1/2006 a) 0.0132669 U (3/1/2006 a) (0.0425613 - 0.0132669)/(6 - 4) 0.0146472 ND<0 U (9/1/2006 a) 0.0132669 U (3/1/2006 a) (0 - 0.0132669)/(7 - 4) -0.00442229 0.204846 U (12/1/2006 a) 0.0132669 U (3/1/2006 a) (0.204846 - 0.0132669)/(8 - 4) 0.0478948 ND<0 U (6/6/2007 a) 0.0132669 U (3/1/2006 a) (0 - 0.0132669)/(9- 4) -0.00265337 0.0425613 U (6/1/2006 a) 0.0227761 U (4/1/2006 a) (0.0425613 - 0.0227761)/(6 - 5) 0.0197853 ND<0 U (9/1/2006 a) 0.0227761 U (4/1/2006 a) (0- 0.0227761)/(7- 5) -0.011388 0.204846 U (12/1/2006 a) 0.0227761 U (4/1/2006 a) (0.204846 - 0.0227761)/(8 - 5) 0.0606901 ND<0 U (6/6/2007 a) 0.0227761 U (4/1/2006 a) (0 - 0.0227761)/(9 - 5) -0.00569402 ND<0 U (9/1/2006 a) 0.0425613 U (6/1/2006 a) (0 - 0.0425613)/(7 - 6) -0.0425613 0.204846 U (12/1/2006 a) 0.0425613 U (6/1/2006 a) (0.204846 - 0.0425613)/(8 - 6) 0.0811425 ND<0 U (6/6/2007 a) 0.0425613 U (6/1/2006 a) (0 - 0.0425613)/(9 - 6) -0.0141871 0.204846 0.204846 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0.204846 - 0)/(8 - 7)

ND<0 U (6/6/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 ND<0 U (6/6/2007 a) 0.204846 U (12/1/2006 a) (0 - 0.204846)/(9 - 8) -0.204846 Number of Q values = 36 Page 1

rOrdered Q Values n Q 1 -0.204846 2 -0.079908 3 -0.0425613 4 -0.0351994 5 -0.0232937 6 -0.0168712 7 -0.0155291 8 -0.0141871 9 -0.011388 10 -0.00763037 11 -0.00570552 12 -0.00569402 13 -0.00442229 14 -0.00408998 15 -0.00407537 16 -0.00375767 17 -0.00306748 18 -0.00265337 19 -0.00191718 20 -0.000440951 21 0 22 0.00350844 23 0.00360429 24 0.00398773 25 0.0095092 26 0.0146472 27 0.0197853 28 0.0223343 29 0.0257581 30 0.0293864 31 0.0343175 32 0.0478948 33 0.0606901 34 0.0646472 35 0.0811425 36 0.204846 Sen's Estimator (Median 0) is -0.00228528 Tied Group Value Members 1 0 2 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 6/6/2007 1 There are 0 time periods with multiple data O A= 18 Page 2

O C=0 B=0 D=0 E=2 F=O a = 1656 b = 4536 c = 144 Group Variance = 91 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 15.6909 M1 = (36 - 15.6909)/2.0 = 10.1546 M2 = (36 + 15.6909)/2.0 + 1 = 26.8454 Lower limit is -0.00763037 = Q(10)

Upper limit is 0.0197853 = Q(27)

-0.00763037 < 0 < 0.0197853 indicating no trend in data.

Page 3

TEDE Time-Series Graph of MW-123 0.25 0.2-E 0.15 c

c 0

(0 0.1 0.05 oc I8 8 u') cc0 0 0 0o 00 0 00a. 0('.1 0('. 00fl 0 Q aN Date CD Sample Date Page 1

. Sen's Parameter: Slope Analysis TEDE Location: MW-123 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.271912 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0.271912- 0)/(2 - 1) 0.271912 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 ND<0 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(8 - 1) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0- 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(10 - 1) 0 ND<0 U (2/1/2006 a) 0.271912 U (1/1/2006 a) (0 - 0.271912)/(3 - 2) -0.271912 ND<0 U (3/1/2006 a) 0.271912 U (1/1/2006 a) (0- 0.271912)/(4- 2) -0.135956 ND<0 U (4/1/2006 a) 0.271912 U (1/1/2006 a) (0- 0.271912)/(5- 2) -0.0906375 ND<0 U (6/1/2006 a) 0.271912 U (1/1/2006 a) (0 - 0.271912)/(6 - 2) -0.0679781 ND<0 U (9/1/2006 a) 0.271912 U (1/1/2006 a) (0 - 0.271912)/(7 - 2) -0.0543825 ND<0 U (12/1/2006 a) 0.271912 U (1/1/2006 a) (0 - 0.271912)/(8 - 2) -0.0453187 ND<0 U (3/5/2007 a) 0.271912 U (1/1/2006 a) (0 - 0.271912)/(9 - 2) -0.0388446 ND<0 U (6/6/2007 a) 0.271912 U (1/1/2006 a) (0- 0.271912)/(10- 2) -0.033989 ND<O U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0- 0)/(6 - 3) 0 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0- 0)/(8- 3) 0 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(9 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0- 0)/(8 - 4) 0 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 ND<0 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5) 0 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(10 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(8 - 6) 0 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0- 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0- 0)/(10- 6) 0 ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<0 U (6/6/2007 a) ND<0 U (9/1/2006 a) (0- 0)/(10 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0- 0)/(10- 9) 0 Number of Q values = 45 Ordered Q Values n Q 1 -0.271912 2 -0.135956 3 -0.0906375 4 -0.0679781 5 -0.0543825 6 -0.0453187 7 -0.0388446 8 -0.033989 9 0 10 0 11 0 12 0 13 0 14 0

. 15 16 17 0

0 0

18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0 42 0 43 0 44 0 45 0.271912 Page 2

. Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 9 Time, Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 1656 B=0 C = 504 D=0 E = 72 F=0 a = 2250 b = 6480

. c = 180 Group Variance = 33 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 9.44896 M1 = (45 - 9.44896)/2.0 = 17.7755 M2 = (45 + 9.44896)/2.0 + 1 = 28.2245 Lower limit is 0 = 0(18)

Upper limit is 0 = Q(28) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE E

c-0) 0 Q

LO (D (D 0 0N C0 0 c0 0 CD 0 0 r..

oD a 0D 0a 0 0 (N ( 0 N 04 C, 04 N-LO r- 0OC Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-124 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.103528 U (1/1/2006 a) 0.0490798 U (12/1/2005 a) (0.103528 - 0.0490798)/(2 - 1) 0.0544479 0.0939417 U (2/1/2006 a) 0.0490798 U (12/1/2005 a) (0.0939417 - 0.0490798)/(3 - 1) 0.022431 0.105445 U (3/1/2006 a) 0.0490798 U (12/1/2005 a) (0.105445 - 0.0490798)/(4 - 1) 0.0187883 0.0901074 U (4/1/2006 a) 0.0490798 U (12/1/2005 a) (0.0901074 - 0.0490798)/(5 - 1) 0.0102569 0.231444 U (6/1/2006 a) 0.0490798 U (12/1/2005 a) (0.231444 - 0.0490798)/(6 - 1) 0.0364728 0.290803 U (9/1/2006 a) 0.0490798 U (12/1/2005 a) (0.290803 - 0.0490798)/(7 - 1) 0.0402872 0.209159 U (12/1/2006 a) 0.0490798 U (12/1/2005 a) (0.209159 - 0.0490798)/(8 - 1) 0.0228685 0.514809 U (3/5/2007 a) 0.0490798 U (12/1/2005 a) (0.514809 - 0.0490798)/(9 - 1) 0.0582161 0.36962 U (4/1/2007 a) 0.0490798 U (12/1/2005 a) (0.36962 - 0.0490798)/(10 - 1) 0.0356155 0.240713 U (6/6/2007 a) 0.0490798 U (12/1/2005 a) (0.240713 - 0.0490798)/(11 - 1) 0.0191633 0.0939417 U (2/1/2006 a) 0.103528 U (1/1/2006 a) (0.0939417 - 0.103528)/(3 - 2) -0.00958589 0.105445 U (3/1/2006 a) 0.103528 U (1/1/2006 a) (0. 105445 - 0.103528)/(4 - 2) 0.000958589 0.0901074 U (4/1/2006 a) 0.103528 U (1/1/2006 a) (0.0901074 - 0.103528)/(5 - 2) -0.00447341 0.231444 U (6/1/2006 a) 0.103528 U (1/1/2006 a) (0.231444 - 0.103528)/(6 - 2) 0.0319791 0.290803 U (9/1/2006 a) 0.103528 U (1/1/2006 a) (0.290803 - 0.103528)/(7 - 2) 0.0374551

. 0.209159 U (12/1/2006 a) 0.514809 U(3/5/2007 a) 0.36962 U (4/1/2007 a) 0.103528 0.103528 0.103528 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.209159 - 0.103528)/(8 - 2)

(0.514809 - 0.103528)/(9 - 2)

(0.36962 - 0.103528)/(10 - 2) 0.0176052 0.0587545 0.0332615 0.240713 U (6/6/2007 a) 0.103528 U (1/1/2006 a) (0.240713 - 0.103528)/(11 - 2) 0.0152428 0.105445 U (3/1/2006 a) 0.0939417 U (2/1/2006 a) (0.105445 - 0.0939417)/(4 - 3) 0.0115031 0.0901074 U (4/1/2006 a) 0.0939417 U (2/1/2006 a) (0.0901074 - 0.0939417)/(5 - 3) -0.00191718 0.231444 U (6/1/2006 a) 0.0939417 U (2/1/2006 a) (0.231444 - 0.0939417)/(6 - 3) 0.045834 0.290803 U (9/1/2006 a)' 0.0939417 U (2/1/2006 a) (0.290803 - 0.0939417)/(7 - 3) 0.0492153 0.209159 U (12/1/2006 a) 0.0939417 U (2/1/2006 a) (0.209159 - 0.0939417)/(8 - 3) 0.0230434 0.514809 U (3/5/2007 a) 0.0939417 U (2/1/2006 a) (0.514809 - 0.0939417)/(9 - 3) 0.0701445 0.36962 U (4/1/2007 a) 0.0939417 U (2/1/2006 a) (0.36962 - 0.0939417)/(10 - 3) 0.0393826 0.240713 U (6/6/2007 a) 0.0939417 U (2/1/2006 a) (0.240713 - 0.0939417)/(11 - 3) 0.0183464 0.0901074 U (4/1/2006 a) 0.105445 U (3/1/2006 a) (0.0901074- 0.105445)/(5- 4) -0.0153374 0.231444 U (6/1/2006 a) 0.105445 U (3/1/2006 a) (0.231444 - 0.105445)/(6- 4) 0.0629995 0.290803 U (9/1/2006 a) 0.105445 U (3/1/2006 a) (0.290803 - 0.105445)/(7 - 4) 0.0617861 0.209159 U (12/1/2006 a) 0.105445 U (3/1/2006 a) (0.209159- 0.105445)/(8 - 4) 0.0259285 0.514809 U (3/5/2007 a) 0.105445 U (3/1/2006 a) (0.514809 - 0.105445)/(9 - 4) 0.0818728 0.36962 U (4/1/2007 a) 0.105445 U (3/1/2006 a) (0.36962 - 0.105445)/(10 - 4) 0.0440291 0.240713 U (6/6/2007 a) 0.105445 U (3/1/2006 a) (0.240713 - 0.105445)/(11 - 4) 0.019324 0.231444 U (6/1/2006 a) 0.0901074 U (4/1/2006 a) (0.231444 - 0.0901074)/(6- 5) 0.141336 0.290803 U (9/1/2006 a) 0.0901074 U (4/1/2006 a) (0.290803 - 0.0901074)/(7 - 5) 0.100348 0.209159 U (12/1/2006 a) 0.0901074 U (4/1/2006 a) (0.209159- 0.0901074)/(8- 5) 0.0396839 0.514809 U (3/5/2007 a) 0.0901074 U (4/1/2006 a) (0.514809 - 0.0901074)/(9 - 5) 0.106175 0.36962 U (4/1/2007 a) 0.0901074 U (4/1/2006 a) (0.36962 - 0.0901074)/(10 - 5) 0.0559025 0.240713 U (6/6/2007 a) 0.0901074 U (4/1/2006 a) (0.240713 - 0.0901074)/(11 - 5) 0.0251009 0.231444 U (6/1/2006 a) 0.290803 U (9/1/2006 a) (0.290803 - 0.231444)/(7 - 6) 0.0593592 0.209159 U (12/1/2006 a) 0.231444 U (6/1/2006 a) (0.209159 - 0.231444)/(8 - 6) -0.0111425 Page 1

0.231444 U (6/1/2006 a) (0.514809 - 0.231444)/(9 - 6) 0.094455

. 0.36962 U (4/1/2007 a) 0.514809 U (3/5/2007 a) 0.240713 U (6/6/2007 a) 0.231444 U (6/1/2006 a) 0.231444 U (6/1/2006 a)

(0.36962 - 0.231444)/(10 - 6)

(0.240713 - 0.231444)/(11 - 6) 0.034544 0.00185378 0.209159 U (12/1/2006 a) 0.290803 U (9/1/2006 a) (0.209159 - 0.290803)/(8 - 7) -0.0816441 0.514809 U (3/5/2007 a) 0.290803 U (9/1/2006 a) (0.514809 - 0.290803)/(9 - 7) 0.112003 0.36962 U (4/1/2007 a) 0.290803 U (9/1/2006 a) (0.36962 - 0.290803)/(10 - 7) 0.0262722 0.240713 U (6/6/2007 a) 0.290803 U (9/1/2006 a) (0.240713 - 0.290803)/(11 - 7) -0.0125226 0.514809 U (3/5/2007 a) 0.209159 U (12/1/2006 a) (0.514809 - 0.209159)/(9 - 8) 0.30565 0.36962 U (4/1/2007 a) 0.209159 U (12/1/2006 a) (0.36962 - 0.209159)/(10 - 8) 0.0802304 0.240713 U (6/6/2007 a) 0.209159 U (12/1/2006 a) (0.240713 - 0.209159)/(11 - 8) 0.0105179 (0.36962 - 0.514809)/(10 - 9) -0.145189 0.36962 U (4/1/2007 a) 0.514809 U (3/5/2007 a) 0.240713 U (6/6/2007 a) 0.514809 U (3/5/2007 a) (0.240713 - 0.514809)/(11 - 9) -0.137048 0.240713 U (6/6/2007 a) 0.36962 U (4/1/2007 a) (0.240713 - 0.36962)/(11 - 10) -0.128907 Number of Q values = 55 Ordered Q Values n Q 1 -0.145189 2 -0.137048 3 -0.128907 4 -0.0816441 5 -0.0153374 6 -0.0125226 7 -0.0111425 8 -0.00958589 9 -0.00447341 10 -0.00191718 11 0.000958589 12 0.00185378 13 0.0102569 14 0.0105179 15 0.0115031 16 0.0152428 17 0.0176052 18 0.0183464 19 0.0187883 20 0.0191633 21 0.019324 22 0.022431 23 0.0228685 24 0.0230434 25 0.0251009 26 0.0259285 27 0.0262722 28 0.0319791 29 0.0332615 30 0.034544 31 0.0356155 32 0.0364728 33 0.0374551 34 0.0393826 Page 2

35 0.0396839 36 0.0402872 37 0.0440291 38 0.045834 39 0.0492153 40 0.0544479 41 0.0559025 42 0.0582161 43 0.0587545 44 0.0593592 45 0.0617861 46 0.0629995 47 0.0701445 48 0.0802304 49 0.0818728 50 0.094455 51 0.100348 52 0.106175 53 0.112003 54 0;141336 55 0.30565 Sen's Estimator (Median Q) is 0.0319791 Time Period Observations 12/1/2005 1 1/1/2006 1

. 2/1/2006 3/1/2006 4/1/2006 1

1 1

6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 4/1/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2970 b = 8910 c = 220 Group Variance = 165 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.1285 M1 = (55 - 21.1285)/2.0 = 16.9357 M2 = (55 + 21.1285)/2.0 + 1 = 39.0643 Lower limit is 0.0176052 = Q(17)

Upper limit is 0.0492153 = Q(39) 0.0176052 > 0 indicating an upward trend in data.

Page 3

TEDE E

a) 0 (0 (0 LO C0 C, C C C) Co CD 0 C0 C0 -

C) 02 o 0 0 CCN0 0 CN QDC 0 CI4 0 CCý CD4 Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-125 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.606091 U (1/1/2006 a) 0.25 U (12/1/2005 a) (0.606091 - 0.25)/(2 - 1) 0.356091 0.595138 U (2/1/2006 a) 0.25 U (12/1/2005 a) (0.595138- 0.25)/(3 - 1) 0.172569 0.800844 U (3/1/2006 a) 0.25 U (12/1/2005 a) (0.800844 - 0.25)/(4 - 1) 0.183615 0.629062 U (4/1/2006 a) 0.25 U (12/1/2005 a) (0.629062 - 0.25)/(5 - 1) 0.0947655 0.669779 U (6/1/2006 a) 0.25 U (12/1/2005 a) (0.669779 - 0.25)/(6 - 1) 0.0839559 0.691424 U (9/1/2006 a) 0.25 U (12/1/2005 a) (0.691424 - 0.25)/(7 - 1) 0.0735707 0.901527 U (10/31/2006 a) 0.25 U (12/1/2005 a) (0.901527 - 0.25)/(8 - 1) 0.0930753 1.15838 U (12/1/2006 a) 0.25 U (12/1/2005 a) (1.15838 - 0.25)/(9 - 1) 0.113548 1.83392 U (3/5/2007 a) 0:25 U (12/1/2005 a) (1.83392 - 0.25)/(10 - 1) 0.175991 1.46824 U (4/1/2007 a) 0.25 U (12/1/2005 a) (1.46824 - 0.25)/(11 - 1) 0.121824 1.07359 U (6/6/2007 a) 0.25 U (12/1/2005 a) (1.07359 - 0.25)/(12 - 1) 0.0748719 0.595138 U (2/1/2006 a) 0.606091 U (1/1/2006 a) (0.595138- 0.606091)/(3- 2) -0.0109531 0.800844 U (3/1/2006 a) 0.606091 U (1/1/2006 a) (0.800844 - 0.606091)/(4 - 2) 0.0973766 0.629062 U (4/1/2006 a) 0.606091 U (1/1/2006 a) (0.629062 - 0.606091)/(5 - 2) 0.007657 0.669779 U (6/1/2006 a) 0.606091 U (1/1/2006 a) (0.669779 - 0.606091)/(6 - 2) 0.0159221 0.691424 U (9/1/2006 a)

O0.901527 1.15838 U (10/31/2006 a)

U (12/1/2006 a) 0.606091 0.606091 U (1/1/2006 U (1/1/2006 a) a)

(0.691424 - 0.606091)/(7- 2)

(0.901527 - 0.606091)/(8 - 2) 0.0170667 0.0492394 0.606091 U (1/1/2006 a) (1.15838 - 0.606091)/(9- 2) 0.0788987 1.83392 U (3/5/2007 a) 0.606091 U (1/1/2006 a) (1.83392 - 0.606091)/(10 - 2) 0.153479 1.46824 U (4/1/2007 a) 0.606091 U (1/1/2006 a) (1.46824 - 0.606091)/(11 - 2) 0.0957947 1.07359 U (6/6/2007 a) 0.606091 U (1/1/2006 a) (1.07359 - 0.606091)/(12- 2) 0.04675 0.800844 U (3/1/2006 a) 0.595138 U (2/1/2006 a) (0.800844 - 0.595138)/(4 - 3) 0.205706 0.629062 U (4/1/2006 a) 0.595138 U (2/1/2006 a) (0.629062 - 0.595138)/(5 - 3) 0.0169621 0.669779 U (6/1/2006 a) 0.595138 U (2/1/2006 a) (0.669779 - 0.595138)/(6 - 3) 0.0248805 0.691424 U (9/1/2006 a) 0.595138 U (2/1/2006 a) (0.691424 - 0.595138)/(7 - 3) 0.0240717 0.901527 U (10/31/2006 a) 0.595138 U (2/1/2006 a) (0.901527 - 0.595138)/(8 - 3) 0.0612779 1.15838 U (12/1/2006 a) 0.595138 U (2/1/2006 a) (1.15838 - 0.595138)/(9- 3) 0.093874 1.83392 U (3/5/2007 a) 0.595138 U (2/1/2006 a) (1.83392 - 0.595138)/(10 - 3) 0.176969 1.46824 U (4/1/2007 a) 0.595138 U (2/1/2006 a) (1.46824 - 0.595138)/(11 - 3) 0.109138 1.07359 U (6/6/2007 a) 0.595138 U (2/1/2006 a) (1.07359 - 0.595138)/(12 - 3) 0.0531614 0.629062 U (4/1/2006 a) 0.800844 U (3/1/2006 a) (0.629062 - 0.800844)/(5 - 4) -0.171782 0.669779 U (6/1/2006 a) 0.800844 U (3/1/2006 a) (0.669779 - 0.800844)/(6 - 4) -0.0655323 0.691424 U (9/1/2006 a) 0.800844 U (3/1/2006 a) (0.691424 - 0.800844)/(7 - 4) -0.0364732 0.901527 U (10/31/2006 a) 0.800844 U (3/1/2006 a) (0.901527 - 0.800844)/(8 - 4) 0.0251708 1.15838 U (12/1/2006 a) 0.800844 U (3/1/2006 a) (1.15838 - 0.800844)/(9- 4) 0.0715075 1.83392 U (3/5/2007 a) 0.800844 U (3/1/2006 a) (1.83392 - 0.800844)/(10 - 4) 0.17218 1.46824 U (4/1/2007 a) 0.800844 U (3/1/2006 a) (1.46824 - 0.800844)/(11 - 4) 0.0953428 1.07359 U (6/6/2007 a) 0.800844 U (3/1/2006 a) (1.07359 - 0.800844)/(12- 4) 0.0340933 0.669779 U (6/1/2006 a) 0.629062 U (4/1/2006 a) (0.669779 - 0.629062)/(6 - 5) 0.0407175

.0.901527 0.691424 U (9/1/2006 a)

U (10/31/2006 a) 1.15838 U (12/1/2006 a) 0.629062 0.629062 0.629062 U (4/1/2006 a)

U (4/1/2006 a)

(0.691424 - 0.629062)/(7 - 5)

(0.901527 - 0.629062)/(8 - 5)

(1.15838 - 0.629062)/(9 - 5) 0.0311813 0.0908218 0.13233 1.83392 U (3/5/2007 a) 0.629062 U (4/1/2006 a) (1.83392 - 0.629062)/(10- 5) 0.240972 Page 1

1.46824 U (4/1/2007 a) 0.629062 U (4/1/2006 a) (1.46824 - 0.629062)/(11 - 5) 0.139864 1.07359 U (6/6/2007 a) 0.629062 U (4/1/2006 a) (1.07359 - 0.629062)/(12- 5) 0.0635041 0.691424 U (9/1/2006 a) 0.669779 U (6/1/2006 a) (0.691424 - 0.669779)/(7 - 6) 0.021645 0.901527 U (10/31/2006 a) 0.669779 U (6/1/2006 a) (0.901527 - 0.669779)/(8 - 6) 0.115874 1.15838 U (12/1/2006 a) 0.669779 U (6/1/2006 a) (1.15838 - 0.669779)/(9- 6) 0.162867 1.83392 U (3/5/2007 a) 0.669779 U (6/1/2006 a) (1.83392 - 0.669779)/(10 - 6) 0.291036 1.46824 U (4/1/2007 a) 0.669779 U (6/1/2006 a) (1.46824 - 0.669779)/(11 - 6) 0.159693 1.07359 U (6/6/2007 a) 0.669779 U (6/1/2006 a) (1.07359 - 0.669779)/(12 - 6) 0.0673019 0.901527 U (10/31/2006 a) 0.691424 U (9/1/2006 a) (0.901527 - 0.691424)/(8 - 7) 0.210103 1.15838 U (12/1/2006 a) 0.691424 U (9/1/2006 a) (11.15838 - 0.691424)/(9 - 7) 0.233479 1.83392 U (3/5/2007 a) 0.691424 U (9/1/2006 a) (1.83392 - 0.691424)/(10- 7) 0.380832 1.46824 U (4/1/2007 a) 0.691424 U (9/1/2006 a) (1.46824 - 0.691424)/(11 - 7) 0.194205 1.07359 U (6/6/2007 a) 0.691424 U (9/1/2006 a) (1.07359 - 0.691424)/(12 - 7) 0.0764332 1.15838 U (12/1/2006 a) 0.901527 U (10/31/2006 a) (1.15838 - 0.901527)/(9 - 8) 0.256854 1.83392 U (3/5/2007 a) 0.901527 U (10/31/2006 a) (1.83392 - 0.901527)/(10 - 8) 0.466197 1.46824 U (4/1/2007 a) 0.901527 U (10/31/2006 a) (1.46824 - 0.901527)/(11 - 8) 0.188905 1.07359 U (6/6/2007 a) 0.901527 U (10/31/2006 a) (1.07359 - 0.901527)/(12- 8) 0.0430158 1.83392 U (3/5/2007 a) 1.15838 U (12/1/2006 a) (1.83392 - 1.15838)/(10- 9) 0.67554 1.46824 U (4/1/2007 a) 1.15838 U (12/1/2006 a) (1.46824 - 1.15838)/(11 - 9) 0.154931 1.07359 U (6/6/2007 a) 1.15838 U (12/1/2006 a) (1.07359 - 1.15838)/(12- 9) -0.0282637

-0.365678 1.46824 U (4/1/2007 a) 1.83392 U (3/5/2007 a) (1.46824 - 1.83392)/(11 - 10) 1.07359 U (6/6/2007 a) 1.83392 U (3/5/2007 a) (1.07359 - 1.83392)/(12 - 10) -0.380166 1.07359 U (6/6/2007 a) 1.46824 U (4/1/2007 a) (1.07359 - 1.46824)/(12- 11) -0.394653 Number of 0 values = 66 Ordered o Values n a 1 -0.394653 2 -0.380166 3 -0.365678 4 -0.171782 5 -0.0655323 6 -0.0364732 7 -0.0282637 8 -0.0109531 9 0.007657 10 0.0159221 11 0.0169621 12 0.0170667 13 0.021645 14 0.0240717 15 0.0248805 16 0.0251708 17 0.0311813 18 0.0340933 19 0.0407175

.120 0.0430158 21 0.04675 22 0.0492394 Page 2

24 23 0.0612779 0.0531614 25 0.0635041 26 0.0673019 27 0.0715075 28 0.0735707 29 0.0748719 30 0.0764332 31 0.0788987 32 0.0839559 33 0.0908218 34 0.0930753 35 0.093874 36 0.0947655 37 0.0953428 38 0.0957947 39 0.0973766 40 0.109138 41 0.113548 42 0.115874 43 0.121824 44 0.13233 45 0.139864 46 0.153479 47 0.154931 48 0.159693 49 0.162867 50 0.17218 51 0.172569 52 0.175991 53 0.176969 54 0.183615 55 0.188905 56 0.194205 57 0.205706 58 0.210103 59 0.233479 60 0.240972 61 0.256854 62 0.291036 63 0.356091 64 0.380832 65 0.466197 66 0.67554 Sen's Estimator (Median Q) is 0.0919486 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 10/31/2006 12/1/2006 1 3/5/2007 1 Page 3

. 6/6/2007 4/1/2007 11 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 3828 b = 11880 c = 264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is 0.04675 = 0(21)

Upper limit is 0.153479 = Q(46) 0.04675 > 0 indicating an upward trend in data.

Page 4

TEDE E

0) 0 u

co (0 Lo to (0 .0 0 r-0 0 (0 0 0 0 0CI-0 0 0 Q (N C( 0 0 Qame Da . Q (N- .- C, C.)- (

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-130 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0189417 U (1/1/2006 a) 0.143635 U (12/1/2005 a) (0.0189417 - 0.143635)/(2 - 1) -0.124694 0.075498 U (2/1/2006 a) 0.143635 U (12/1/2005 a) (0.075498 - 0.143635)/(3 - 1) -0.0340687 ND<0 U (3/1/2006 a) 0.143635 U (12/1/2005 a) (0- 0.143635)/(4 - 1) -0.0478785 ND<0 U (4/1/2006 a) 0.143635 U (12/1/2005 a) (0- 0.143635)/(5 - 1) -0.0359089 ND<0 U (6/1/2006 a) 0.143635 U (12/1/2005 a) (0 - 0.143635)/(6 - 1) -0.0287271 ND<0 U (9/1/2006 a) 0.143635 U (12/1/2005 a) (0- 0.143635)/(7 - 1) -0.0239392 0.00724693 U (12/1/2006 a) 0.143635 U (12/1/2005 a) (0.00724693 - 0.143635)/(8 - 1) -0.0194841 ND<0 U (3/5/2007 a) 0.143635 U (12/1/2005 a) (0 - 0.143635)/(9 - 1) -0.0179544 0.189305 U (6/6/2007 a) 0.143635 U (12/1/2005 a) (0.189305 - 0.143635)/(10 - 1) 0.00507442 0.075498 U (2/1/2006 a) 0.0189417 U (1/1/2006 a) (0.075498 - 0.0189417)/(3 - 2) 0.0565563 ND<0 U (3/1/2006 a) 0.0189417 U (1/1/2006 a) (0 - 0.0189417)/(4 - 2) -0.00947086 ND<0 U (4/1/2006 a) 0.0189417 U (1/1/2006 a) (0 - 0.0189417)/(5 - 2) -0.00631391 ND<0 U (6/1/2006 a) 0.0189417 U (1/1/2006 a) (0- 0.0189417)/(6 - 2) -0.00473543 ND<0 U (9/1/2006 a) 0.0189417 U (1/1/2006 a) (0- 0.0189417)/(7- 2) -0.00378834 0.00724693 U (12/1/2006 a) 0.0189417 U (1/1/2006 a) (0.00724693 - 0.0189417)/(8- 2) -0.00194913 ND<0 U (3/5/2007 a) 0.0189417 U (1/1/2006 a) (0- 0.0189417)/(9- 2) -0.00270596 0.189305 U (6/6/2007 a) 10.0189417 U (1/1/2006 a) (0.189305 - 0.0189417)/(10- 2) 0.0212954 ND<0 U (3/1/2006 a) 0.075498 U (2/1/2006 a) (0 - 0.075498)/(4 - 3) -0.075498 ND<0 U (4/1/2006 a) 0.075498 U (2/1/2006 a) (0 - 0.075498)/(5 - 3) -0.037749 ND<0 U (6/1/2006 a) 0.075498 U (2/1/2006 a) (0 - 0.075498)/(6 - 3) -0.025166 ND<0 U (9/1/2006 a) 0.075498 U (2/1/2006 a) (0 - 0.075498)/(7 - 3) -0.0188745 0.00724693 U (12/1/2006 a) 0.075498 U (2/1/2006 a) (0.00724693 - 0.075498)/(8 - 3) -0.0136502 ND<0 U (3/5/2007 a) 0.075498 U (2/1/2006 a) (0 - 0.075498)/(9 - 3) -0.012583 0.189305 U (6/6/2007 a) 0.075498 U (2/1/2006 a) (0.189305 - 0.075498)/(10- 3) 0.0162582 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 0.00724693 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0.00724693 - 0)/(8 - 4) 0.00181173 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 0.189305 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0.189305 - 0)/(10 - 4) 0.0315509 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 0.00724693 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0.00724693 - 0)/(8 - 5) 0.00241564 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 0.189305 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0.189305 - 0)/(10 - 5) 0.037861 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 0.00724693 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0.00724693 - 0)/(8 - 6) 0.00362347 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 0.189305 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0.189305 - 0)/(10 - 6) 0.0473263 0 0.00724693 U (12/1/2006 a)

ND<0 U (3/5/2007 a)

ND<0 U (9/1/2006 a)

(0.00724693 - 0)/(8 - 7)

(0 - 0)/(9 - 7) 0.00724693 0

Page 1

0.189305 U (6/6/2007 a) ND<O U (9/1/2006 a) (0.189305 - 0)/(10 - 7) 0.0631017 ND<0 U (3/5/2007 a) 0.00724693 U (12/1/2006 a) (0 - 0.00724693)/(9 - 8) -0.00724693 0.189305 U (6/6/2007 a) 0.00724693 U (12/1/2006 a) (0.189305 - 0.00724693)/(10 - 8) 0.0910291 0.189305 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0.189305 - 0)/(10 - 9) 0.189305 Number of 0 values = 45 Ordered Q Values n Q 1 -0.124694 2 -0.075498 3 -0.0478785 4 -0.037749 5 -0.0359089 6 -0.0340687 7 -0.0287271 8 -0.025166 9 -0.0239392 10 -0.0194841 11 -0.0188745 12 -0.0179544 13 -0.0136502 14 -0.012583

. 15 16 17

-0.00947086

-0.00724693

-0.00631391 18 -0.00473543 19 -0.00378834 20 -0.00270596 21 -0.00194913 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0.00181173 33 0.00241564 34 0.00362347 35 0.00507442 36 0.00724693 37 0.0162582 38 0.0212954 39 0.0315509 40 0.037861 41 0.0473263 42 0.0565563 43 0.0631017 44 0.0910291 45 0.189305 Page 2

. Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 5 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 300 B=0 C = 60 D=0 E = 20 F=0 a = 2250 b = 6480 c= 180

Group Variance = 108.333 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 17.1202 M1 = (45 - 17.1202)/2.0 = 13.9399 M2 = (45 + 17.1202)/2.0 + 1 = 32.0601 Lower limit is -0.012583 = Q(14)

Upper limit is 0.00181173 = 0(32)

-0.012583 < 0 < 0.00181173 indicating no trend in data.

Page 3

TEDE Time-Series Graph of MW-131 D 0.2 0.15 E

0.1 c

0 0

0-0.0 0.05 On CD C, o~t 0QD00001 (N O se (N i) Nz: (C Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-1 31D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 0.0242331 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0.0242331 - 0)/(4 - 1) 0.00807771 0.0154141 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0.0154141 - 0)/(5 - 1) 0.00385353 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 0.0139571 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0.0139571 - 0)/(7 - 1) 0.00232618 0.017408 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0.017408 - 0)/(8 - 1) 0.00248685 0.0166028 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0.0166028 - 0)/(9 - 1) 0.00207535 0.160221 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0.160221 - 0)/(10 - 1) 0.0178023 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2) 0 0.0242331 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0.0242331 - 0)/(4 - 2) 0.0121166 0.0154141 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0.0154141 - 0)/(5 - 2) 0.00513804 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 0.0139571 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0.0139571 - 0)/(7 - 2) 0.00279141 0.017408 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0.017408 - 0)/(8 - 2) 0.00290133 0.0166028 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0.0166028 - 0)/(9 - 2) 0.00237182 0.160221 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0.160221 - 0)/(10- 2) 0.0200276 0.0242331 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0.0242331 - 0)/(4 - 3) 0.0242331 0.0154141 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0.0154141 - 0)/(5 - 3) 0.00770706 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0- 0)/(6 - 3) 0 0.0139571 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0.0139571 - 0)/(7 - 3) 0.00348926 0.017408 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0.017408- 0)/(8 - 3) 0.00348159 0.0166028 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0.0166028- 0)/(9- 3) 0.00276713 0.160221 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0.160221 - 0)/(10- 3) 0.0228887 0.0154141 U (4/1/2006 a) 0.0242331 U (3/1/2006 a) (0.0154141 - 0.0242331)/(5- 4) -0.00881902 ND<0 U (6/1/2006 a) 0.0242331 U (3/1/2006 a) (0 - 0.0242331)/(6 - 4) -0.0121166 0.0139571 U (9/1/2006 a) 0.0242331 U (3/1/2006 a) (0.0139571 - 0.0242331)/(7 - 4) -0.00342536 0.017408 U (12/1/2006 a) 0.0242331 U (3/1/2006 a) (0.017408 - 0.0242331)/(8- 4) -0.00170629 0.0166028 U (3/5/2007 a) 0.0242331 U (3/1/2006 a) (0.0166028 - 0.0242331)/(9- 4) -0.00152607 0.160221 U (6/6/2007 a) 0.0242331 U (3/1/2006 a) (0.160221 - 0.0242331)/(10- 4) 0.0226646 ND<0 U (6/1/2006 a) 0.0154141 U (4/1/2006 a) (0- 0.0154141 )/(6- 5) -0.0154141 0.0139571 U (9/1/2006 a) 0.0154141 U (4/1/2006 a) (0.0139571 - 0.0154141)/(7- 5) -0.000728528 0.017408 U (12/1/2006 a) 0.0154141 U (4/1/2006 a) (0.017408 - 0.0154141)/(8- 5) 0.000664622 0.0166028 U (3/5/2007 a) 0.0154141 U (4/1/2006 a) (0.0166028 - 0.0154141)/(9 - 5) 0.000297163 0.160221 U (6/6/2007 a) 0.0154141 U (4/1/2006 a) (0.160221 - 0.0154141)/(10 - 5) 0.0289613 0.0139571 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0.0139571 - 0)/(7 - 6) 0.0139571 0.017408 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0.017408 - 0)/(8 - 6) 0.00870399 0.0166028 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0.0166028 - 0)/(9 - 6) 0.00553425 0.160221 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0.160221 - 0)/(10- 6) 0.0400552 0.017408 U (12/1/2006 a) 0.0139571 U (9/1/2006 a) (0.017408 - 0.0139571)/(8 - 7) 0.00345092 0.0166028 U (3/5/2007 a) 0.0139571 U (9/1/2006 a) (0.0166028 - 0.0139571)/(9 - 7) 0.00132285 Page 1

0. 160221 U (6/6/2007 a) 0.0139571 U (9/1/2006 a) (0.160221 - 0.0139571)/(10 - 7) 0.0487546 0.0166028 U (3/5/2007 a) 0.017408 U (12/1/2006 a) (0.0166028 - 0.017408)/(9 - 8) -0.000805214

0. 160221 U (6/6/2007 a) 0.017408 U (12/1/2006 a) (0.160221 - 0.017408)/(10 - 8) 0.0714064 0.160221 U (6/6/2007 a) 0.0166028 U (3/5/2007 a) (0.160221 - 0.0166028)/(10 - 9) 0.143618 Number of Q values = 45 Ordered Q Values n Q 1 -0.0154141 2 -0.0121166 3 -0.00881902 4 -0.00342536 5 -0.00170629 6 -0.00152607 7 -0.000805214 8 -0.000728528 9 0 10 0 11 0 12 0 13 0 14 0

. 15 16 17 0.000297163 0.000664622 0.00132285 18 0.00207535 19 0.00232618 20 0.00237182 21 0.00248685 22 0.00276713 23 0.00279141 24 0.00290133 25 0.00345092 26 0.00348159 27 0.00348926 28 0.00385353 29 0.00513804 30 0.00553425 31 0.00770706 32 0.00807771 33 0.00870399 34 0.0121166 35 0.0139571 36 0.0178023 37 0.0200276 38 0.0226646 39 0.0228887 40 0.0242331 41 0.0289613 0.0400552 43 42 0.0487546 44 0.0714064 45 0.143618 Page 2

Sen's Estimator (Median Q) is 0.00279141 Tied Group Value Members 1 0 4 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 156 B=0 C = 24 D=0 E =12 F=0 a = 2250 b = 6480

. c= 180 Group Variance = 116.333 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 17.741 M1 = (45 - 17.741)/2.0 = 13.6295 M2 = (45 + 17.741)/2.0 + 1 = 32.3705 Lower limit is 0 = Q(14)

Upper limit is 0.00807771 = Q(32) 0 < 0 < 0.00807771 indicating no trend in data.

Page 3

TEDE 0.3 Time-Series Graph of MW-131S 0.25 0.2 E 0.15 0

16 0

0.1 0.05- C.,O"..

00(

LO (D (0 D OD a 0 (0 0) D 0C0 o o 0 0 (\J 0 0 0

(oI(N 0(N,(I SampCe Date Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-131S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0197853 U (1/1/2006 a) 0.216765 U (12/1/2005 a) (0.0197853 - 0.216765)/(2 - 1) -0.19698 0.0315951 U (2/1/2006 a) 0.216765 U (12/1/2005 a) (0.0315951 - 0.216765)/(3 - 1) -0.0925852 0.0357745 U (3/1/2006 a) 0.216765 U (12/1/2005 a) (0.0357745 - 0.216765)/(4 - 1) -0.0603303 0.0402607 U (4/1/2006 a) 0.216765 U (12/1/2005 a) (0.0402607 - 0.216765)/(5 - 1) -0.0441262 0.0215491 U (6/1/2006 a) 0.216765 U (12/1/2005 a) (0.0215491 - 0.216765)/(6 - 1) -0.0390433

0. 172377 U (9/1/2006 a) 0.216765 U (12/1/2005 a) (0.172377 - 0.216765)/(7 - 1) -0.00739814 0.172598 U (12/1/2006 a) 0.216765 U (12/1/2005 a) (0.172598- 0.216765)/(8 - 1) -0.00630958 0.23569 U (3/5/2007 a) 0.216765 U (12/1/2005 a) (0.23569 - 0.216765)/(9 - 1) 0.00236554 0.188798 U (6/6/2007 a) 0.216765 U (12/1/2005 a) (0.188798 - 0.216765)/(10 - 1) -0.00310744 0.0315951 U (2/1/2006 a) 0.0197853 U (1/1/2006 a) (0.0315951 - 0.0197853)/(3 - 2) 0.0118098 0.0357745 U (3/1/2006 a) 0.0197853 U (1/1/2006 a) (0.0357745 - 0.0197853)/(4 - 2) 0.00799463 0.0402607 U (4/1/2006 a) 0.0197853 U (1/1/2006 a) (0.0402607 - 0.0197853)/(5 - 2) 0.00682515 0.0215491 U (6/1/2006 a) 0.0197853 U (1/1/2006 a) (0.0215491 - 0.0197853)/(6 - 2) 0.000440951 0.172377 U (9/1/2006 a) 0.0197853 U (1/1/2006 a) (0.172377 - 0.0197853)/(7 - 2) 0.0305183 0.172598 U (12/1/2006 a) 0.0197853 U (1/1/2006 a) (0.172598 - 0.0197853)/(8 - 2) 0.0254689 0.23569 U (3/5/2007 a) 0.0197853 U (1/1/2006 a) (0.23569 - 0.0197853)/(9 - 2) 0.0308435 0.188798 U (6/6/2007 a) 0.0197853 U (1/1/2006 a) (0.188798 - 0.0197853)/(10 - 2) 0.0211267 0.0357745 U (3/1/2006 a) 0.0315951 U (2/1/2006 a) (0.0357745 - 0.0315951)/(4- 3) 0.00417945 0.0402607 U (4/1/2006 a) 0.0315951 U (2/1/2006 a) (0.0402607 - 0.0315951)/(5 - 3) 0.00433282 0.0215491 U (6/1/2006 a) 0.0315951 U (2/1/2006 a) (0.0215491 - 0.0315951)/(6- 3) -0.00334867 0.172377 U (9/1/2006 a) 0.0315951 U (2/1/2006 a) (0.172377 - 0.0315951)/(7- 3) 0.0351954 0.172598 U (12/1/2006 a) 0.0315951 U (2/1/2006 a) (0.172598 - 0.0315951)/(8- 3) 0.0282007 0.23569 U (3/5/2007 a) 0.0315951 U (2/1/2006 a) (0.23569 - 0.0315951)/(9 - 3) 0.0340158 0.188798 U (6/6/2007 a) 0.0315951 U (2/1/2006 a) (0.188798 - 0.0315951)/(10 - 3) 0.0224576 0.0402607 U (4/1/2006 a) 0.0357745 U (3/1/2006 a) (0.0402607 - 0.0357745)/(5 - 4) 0.0044862 0.0215491 U (6/1/2006 a) 0.0357745 U (3/1/2006 a) (0.0215491 - 0.0357745)/(6 - 4) -0.00711273 0.172377 U (9/1/2006 a) 0.0357745 U (3/1/2006 a) (0.172377 - 0.0357745)/(7- 4) 0.045534 0.172598 U (12/1/2006 a) 0.0357745 U (3/1/2006 a) (0.172598 - 0.0357745)/(8 - 4) 0.034206 0.23569 U (3/5/2007 a) 0.0357745 U (3/1/2006 a) (0.23569 - 0.0357745)/(9 - 4) 0.039983 0.188798 U (6/6/2007 a) 0.0357745 U (3/1/2006 a) (0.188798 - 0.0357745)/(10 - 4) 0.025504 0.0215491 U (6/1/2006 a) 0.0402607 U (4/1/2006 a) (0.0215491 - 0.0402607)/(6 - 5) -0.0187117 0.172377 U (9/1/2006 a) 0.0402607 U (4/1/2006 a) (0.172377 - 0.0402607)/(7 - 5) 0.0660579 0.172598 U (12/1/2006 a) 0.0402607 U (4/1/2006 a) (0.172598 - 0.0402607)/(8 - 5) 0.0441126 0.23569 U (3/5/2007 a) 0.0402607 U (4/1/2006 a) (0.23569 - 0.0402607)/(9 - 5) 0.0488573 0.188798 U (6/6/2007 a) 0.0402607 U (4/1/2006 a) (0.188798 - 0.0402607)/(10 - 5) 0.0297076 0.172377 U (9/1/2006 a) 0.0215491 U (6/1/2006 a) (0.172377 - 0.0215491)/(7 - 6) 0.150828

0. 172598 U (12/1/2006 a) 0.0215491 U (6/1/2006 a) (0.172598 - 0.0215491)/(8- 6) 0.0755247 0.23569 U (3/5/2007 a) 0.0215491 U (6/1/2006 a) (0.23569 - 0.0215491)/(9 - 6) 0.0713802 0.188798 U (6/6/2007 a) 0.0215491 U (6/1/2006 a) (0.188798 - 0.0215491)/(1 0- 6) 0.0418124 0.172598 U (12/1/2006 a) 0.172377 U (9/1/2006 a) (0.172598 - 0.172377)/(8 - 7) 0.000221812 0.23569 U (3/5/2007 a) 0.172377 U (9/1/2006 a) (0.23569 - 0.172377)/(9 - 7) 0.0316566 Page 1

0.188798 U (6/6/2007 a) 0. 172377 U (9/1/2006 a) (0.188798 - 0.172377)/(10 - 7) 0.00547396 0.23569 U (3/5/2007 a) 0.172598 U (12/1/2006 a) (0.23569 - 0.172598)/(9 - 8) 0.0630913 0.188798 U (6/6/2007 a) 0.172598 U (12/1/2006 a) (0.188798 - 0.172598)/(1 0- 8) 0.00810004 0.188798 U (6/6/2007 a) 0.23569 U (3/5/2007 a) (0.188798 - 0.23569)/(10 - 9) -0.0468913 Number of Q values = 45 Ordered Q Values n a 1 -0.19698 2 -0.0925852 3 -0.0603303 4 -0.0468913 5 -0.0441262 6 -0.0390433 7 -0.0187117 8 -0.00739814 9 -0.00711273 10 -0.00630958 11 -0.00334867 12 -0.00310744 13 0.000221812 14 0.000440951

. 15 16 17 0.00236554 0.00417945 0.00433282 18 0.0044862 19 0.00547396 20 0.00682515 21 0.00799463 22 0.00810004 23 0.0118098 24 0.0211267 25 0.0224576 26 0.0254689 27 0.025504 28 0.0282007 29 0.0297076 30 0.0305183 31 0.0308435 32 0.0316566 33 0.0340158 34 0.034206 35 0.0351954 36 0.039983 37 0.0418124 38 0.0441126 39 0.045534 40 0.0488573 41 0.0630913 43 42 0.0660579 0.0713802 44 0.0755247 45 0.150828 Page 2

Sen's Estimator (Median 0) is 0.0118098 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F -0 a = 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

.M1C = 18.39

= (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is 0.000221812 = Q(13)

Upper limit is 0.0340158 = Q(33) 0.000221812 > 0 indicating an upward trend in data.

Page 3

TEDE Time-Series Graph of MW-132D 0.1 0.09 0.08 0.07 0.06 0.05 C

0.04 0.03 0.02 0-0.01 )

Lo( DC) C, I CD o 0ODD c C) 0 00) C)C 0 0 (N (N 0 (N (N 0 0 N Q Sample Date Page 1

. Sen's Parameter:Slope TEDEAnalysis Location: MW-132D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0293328 U (1/1/2006 a) 0.0146856 U (12/1/2005 a) (0.0293328 - 0.0146856)/(2 - 1) 0.0146472 ND<0 U (2/1/2006 a) 0.0146856 U (12/1/2005 a) (0 - 0.0146856)/(3 - 1) -0.00734279 ND<0 U (3/1/2006 a) 0.0146856 U (12/1/2005 a) (0 - 0.0146856)/(4 - 1) -0.00489519 ND<0 U (4/1/2006 a) 0.0146856 U (12/1/2005 a) (0 - 0.0146856)/(5 - 1) -0.0036714 ND<0 U (6/1/2006 a) 0.0146856 U (12/1/2005 a) (0 - 0.0146856)/(6 - 1) -0.00293712 ND<0 U (9/1/2006 a) 0.0146856 U (12/1/2005 a) (0 - 0.0146856)/(7 - 1) -0.0024476 0.0509969 U (10/31/2006 a) 0.0146856 U (12/1/2005 a) (0.0509969 - 0.0146856)/(8 - 1) 0.00518734 0.0973926 U (12/1/2006 a) 0.0146856 U (12/1/2005 a) (0.0973926 - 0.0146856)/(9 - 1) 0.0103384 ND<0 U (3/5/2007 a) 0.0146856 U (12/1/2005 a) (0 - 0.0146856)/(10 - 1) -0.00163173 ND<0 U (6/6/2007 a). 0.0146856 U (12/1/2005 a) (0 - 0.0146856)/(11 - 1) -0.00146856 ND<0 U (2/1/2006 a) 0.0293328 U (1/1/2006 a) (0 - 0.0293328)/(3 - 2) -0.0293328 ND<0 U (3/1/2006 a) 0.0293328 U (1/1/2006 a) (0 - 0.0293328)/(4 - 2) -0.0146664 ND<0 U (4/1/2006 a) 0.0293328 U (1/1/2006 a) (0 - 0.0293328)/(5 - 2) -0.00977761 ND<0 U (6/1/2006 a) 0.0293328 U (1/1/2006 a) (0 - 0.0293328)/(6 - 2) -0.00733321 ND<0 U (9/1/2006 a) 0.0293328 U (1/1/2006 a) (0 - 0.0293328)/(7 - 2) -0.00586656

. 0.0509969 U (10/31/2006 a) 0.0973926 U (12/1/2006 a)

ND<0 U (3/5/2007 a) 0.0293328 0.0293328 0.0293328 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.0509969 - 0.0293328)/(8 - 2) 0.00361069 (0.0973926 - 0.0293328)/(9 - 2) 0.00972283 (0 - 0.0293328)/(10 - 2) -0.0036666 ND<0 U (6/6/2007 a) 0.0293328 U (1/1/2006 a) (0 - 0.0293328)/(11 - 2) -0.0032592 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 0.0509969 U (10/31/2006 a) ND<0 U (2/1/2006 a) (0.0509969 - 0)/(8 - 3) 0.0101994 0.0973926 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0.0973926 - 0)/(9 - 3) 0.0162321 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0- 0)/(11 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 0.0509969 U (10/31/2006 a) ND<0 U (3/1/2006 a) (0.0509969 - 0)/(8 - 4) 0.0127492 0.0973926 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0.0973926 - 0)/(9 - 4) 0.0194785 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0- 0)/(11 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 0.0509969 U (10/31/2006 a) ND<0 U (4/1/2006 a) (0.0509969 - 0)/(8 - 5) 0.016999 0.0973926 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0.0973926 - 0)/(9 - 5) 0.0243482 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(10 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0- 0)/(11 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0- 0)/(7- 6) 0 0.0509969 U (10/31/2006 a) ND<0 U (6/1/2006 a) (0.0509969 - 0)/(8 - 6) 0.0254985 Page 1

ND<0 U (6/1/2006 a) (0.0973926 - 0)/(9 - 6) 0.0324642 O ND<O U (3/5/2007 0.0973926 a)

U (12/1/2006 a) ND<0 U (6/1/2006 a) (0- 0)/(10- 6) 0 ND<O U (6/6/2007 a) ND<0 U (6/1/2006 a) (0- 0)/(11 - 6) 0 0.0509969 U (10/31/2006 a) ND<0 U (9/1/2006 a) (0.0509969 - 0)/(8 - 7) 0.0509969 0.0973926 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0.0973926 - 0)/(9 - 7) 0.0486963 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(10 - 7) 0 ND<0 U (6/6/2007 a) ND<0 U (9/1/2006 a) (0- 0)/(11 - 7) 0 0.0973926 U (12/1/2006 a) 0.0509969 U (10/31/2006 a) (0.0973926 - 0.0509969)/(9 - 8) 0.0463957 ND<0 U (3/5/2007 a) 0.0509969 U (10/31/2006 a) (0- 0.0509969)/(10- 8) -0.0254985 ND<0 U (6/6/2007 a) 0.0509969 U (10/31/2006 a) (0 - 0.0509969)/(11 - 8) -0.016999 ND<0 U (3/5/2007 a) 0.0973926 U (12/1/2006 a)

(0 - 0.0973926)/(10 - 9) -0.0973926 ND<0 U (6/6/2007 a) 0.0973926 U (12/1/2006 a) (0 - 0.0973926)/(11 - 9) -0.0486963 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0- 0)/(11 - 10) 0 Number of Q values = 55 Ordered o Values n a 1 -0.0973926 2 -0.0486963 3 -0.0293328 4 -0.0254985 5 -0.016999 6 -0.0146664 7 -0.00977761 8 -0.00734279 9 -0.00733321 10 -0.00586656 11 -0.00489519 12 -0.0036714 13 -0.0036666 14 -0.0032592 15 -0.00293712 16 -0.0024476 17 -0.00163173 18 -0.00146856 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 Page 2

36 35 00 37 0 38 0 39 0 40 0.00361069 41 0.00518734 42 0.00972283 43 0.0101994 44 0.0103384 45 0.0127492 46 0.0146472 47 0.0162321 48 0.016999 49 0.0194785 50 0.0243482 51 0.0254985 52 0.0324642 53 0.0463957 54 0.0486963 55 0.0509969 Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 7 Time Period Observations

. 12/1/2005 1/1/2006 1

1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 798 B=0 C=210 D=0 E = 42 F=0 a = 2970 b = 8910 c = 220 Group Variance = 120.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 18.0684 M1 = (55 - 18.0684)/2.0 = 18.4658

.Lower M2 = (55 + 18.0684)/2.0 + 1 = 37.5342 limit is -0.00146856 = Q(18)

Upper limit is 0 = 0(38)

-0.00146856 < 0 < 0 indicating no trend in data.

Page 3

TEDE Time-Series Graph E

0.

c0

.2 C-)

O 0 ,

UI) (0 (0 C0 D CD 0 C) o CD0 C) 0 Q

0N N)' C)

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-132S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 0.021204 U (1/1/2006 a) 0.296012 U (12/1/2005 a) (0.021204 - 0.296012)/(2 - 1) -0.274808 0.0205138 U (2/1/2006 a) 0.296012 U (12/1/2005 a) (0.0205138 - 0.296012)/(3 - 1) -0.137749 0.0345475 U (3/1/2006 a) 0.296012 U (12/1/2005 a) (0.0345475 - 0.296012)/(4 - 1) -0.0871549 0.033819 U (4/1/2006 a) 0.296012 U (12/1/2005 a) (0.033819 - 0.296012)/(5 - 1) -0.0655483 ND<0 U (6/1/2006 a) 0.296012 U (12/1/2005 a) (0 - 0.296012)/(6 - 1) -0.0592025 0.0287577 U (9/1/2006 a) 0.296012 U (12/1/2005 a) (0.0287577 - 0.296012)/(7 - 1) -0.0445424 0.0509969 U (10/31/2006 a) 0.296012 U (12/1/2005 a) (0.0509969 - 0.296012)/(8 - 1) -0.0350022 0.0567485 U (12/1/2006 a) 0.296012 U (12/1/2005 a) (0.0567485 - 0.296012)/(9 - 1) -0.029908 0.13727 U (3/5/2007 a) 0.296012 U (12/1/2005 a) (0.13727 - 0.296012)/(10 - 1) -0.017638 ND<0 U (6/6/2007 a) 0.296012 U (12/1/2005 a) (0 - 0.296012)/(11 - 1). -0.0296012 0.0205138 U (2/1/2006 a) 0.021204 U (1/1/2006 a) (0.0205138- 0.021204)/(3- 2) -0.000690184 0.0345475 U (3/1/2006 a) 0.021204 U (1/1/2006 a) (0.0345475 - 0.021204)/(4 - 2) 0.00667178 0.033819 U (4/1/2006 a) 0.021204 U (1/1/2006 a) (0.033819 - 0.021204)/(5 - 2) 0.00420501 ND<0 U (6/1/2006 a) 0.021204 U (1/1/2006 a) (0 - 0.021204)/(6 - 2) -0.005301 0.0287577 U (9/1/2006 a) 0.021204 U (1/1/2006 a) (0.0287577 - 0.021204)/(7 - 2) 0.00151074

. 0.0509969 U (10/31/2006 a) 0.0567485 U (12/1/2006 a) 0.13727 U (3/5/2007 a) 0.021204 0.021204 0.021204 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(0.0509969 - 0.021204)/(8 - 2)

(0.0567485 - 0.021204)/(9 - 2)

(0.13727 - 0.021204)/(10 - 2) 0.00496549 0.00507778 0.0145082 ND<0 U (6/6/2007 a) 0.021204 U (1/1/2006 a) (0 - 0.021204)/(11 - 2) -0.002356 0.0345475 U (3/1/2006 a) 0.0205138 U (2/1/2006 a) (0.0345475 - 0.0205138)/(4 - 3) 0.0140337 0.033819 U (4/1/2006 a) 0.0205138 U (2/1/2006 a) (0.033819 - 0.0205138)/(5- 3) 0.00665261 ND<0 U (6/1/2006 a) 0.0205138 U (2/1/2006 a) (0 - 0.0205138)/(6 - 3) -0.00683793 0.0287577 U (9/1/2006 a) 0.0205138 U (2/1/2006 a) (0.0287577 - 0.0205138)/(7 - 3) 0.00206097 0.0509969 U (10/31/2006 a) 0.0205138 U (2/1/2006 a) (0.0509969 - 0.0205138)/(8 - 3) 0.00609663 0.0567485 U (12/1/2006 a) 0.0205138 U (2/1/2006 a) (0.0567485 - 0.0205138)/(9 - 3) 0.00603911 0.13727 U (3/5/2007 a) 0.0205138 U (2/1/2006 a) (0.13727 - 0.0205138)/(10 - 3) 0.0166794 ND<0 U (6/6/2007 a) 0.0205138 U (2/1/2006 a) (0 - 0.0205138)/(11 - 3) -0.00256423 0.033819 U (4/1/2006 a) 0.0345475 U (3/1/2006 a) (0.033819 - 0.0345475)/(5 - 4) -0.000728528 ND<0 U (6/1/2006 a) 0.0345475 U (3/1/2006 a) (0 - 0.0345475)/(6 - 4) -0.0172738 0.0287577 U (9/1/2006 a) 0.0345475 U (3/1/2006 a) (0.0287577 - 0.0345475)/(7 - 4) -0.00192996 0.0509969 U (10/31/2006 a) 0.0345475 U (3/1/2006 a) (0.0509969 - 0.0345475)/(8 - 4) 0.00411235 0.0567485 U (12/1/2006 a) 0.0345475 U (3/1/2006 a) (0.0567485 - 0.0345475)/(9 - 4) 0.00444018 0.13727 U (3/5/2007 a) 0.0345475 U (3/1/2006 a) (0.13727 - 0.0345475)/(10 - 4) 0.0171204 ND<0 U (6/6/2007 a) 0.0345475 U (3/1/2006 a) (0 - 0.0345475)/(11 - 4) -0.00493536 ND<0 U (6/1/2006 a) 0.033819 U (4/1/2006 a) (0 - 0.033819)/(6 - 5) -0.033819 0.0287577 U (9/1/2006 a) 0.033819 U (4/1/2006 a) (0.0287577 - 0.033819)/(7 - 5) -0.00253067 0.0509969 U (10/31/2006 a) 0.033819 U (4/1/2006 a) (0.0509969 - 0.033819)/(8 - 5) 0.00572597 0.0567485 U (12/1/2006 a) 0.033819 U (4/1/2006 a) (0.0567485 - 0.033819)/(9 - 5) 0.00573236 0.13727 U (3/5/2007 a) 0.033819 U (4/1/2006 a) (0.13727 - 0.033819)/(10 - 5) 0.0206902 ND<0 U (6/6/2007 a) 0.033819 U (4/1/2006 a) (0 - 0.033819)/(11 - 5) -0.0056365 0.0287577 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0.0287577 - 0)/(7 - 6) 0.0287577 0.0509969 U (10/31/2006 a) ND<0 U (6/1/2006 a) (0.0509969 - 0)/(8 - 6) 0.0254985 Page 1

SO 0.0567485 U (12/1/2006 a)

0. 13727 U (3/5/2007 a)

ND<0 U (6/1/2006 a)

(0.0567485 - 0)/(9 - 6)

(0.13727 - 0)/(10- 6) 0.0189162 0.0343175 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0- 0)/(11 - 6) 0 0.0509969 U (10/31/2006 a) 0.0287577 U (9/1/2006 a) (0.0509969 - 0.0287577)/(8 - 7) 0.0222393 0.0567485 U (12/1/2006 a) 0.0287577 U (9/1/2006 a) (0.0567485 - 0.0287577)/(9 - 7) 0.0139954 0.13727 U (3/5/2007 a) 0.0287577 U (9/1/2006 a) (0.13727 - 0.0287577)/(10- 7) 0.0361708 ND<0 U (6/6/2007 a) 0.0287577 U (9/1/2006 a) (0 - 0.0287577)/(11 - 7) -0.00718942 0.0567485 U (12/1/2006 a) 0.0509969 U (10/31/2006 a) (0.0567485 - 0.0509969)/(9 - 8) 0.00575153 0.13727 U (3/5/2007 a) 0.0509969 U (10/31/2006 a) (0.13727 - 0.0509969)/(10 - 8) 0.0431365 ND<0 U (6/6/2007 a) 0.0509969 U (10/31/2006 a) (0- 0.0509969)/(11 - 8) -0.016999 0.13727 U (3/5/2007 a) 0.0567485 U (12/1/2006 a) (0.13727 - 0.0567485)/(10 - 9) 0.0805215 ND<0 U (6/6/2007 a) 0.0567485 U (12/1/2006 a) (0 - 0.0567485)/(11 - 9) -0.0283742 ND<0 U (6/6/2007 a) 0.13727 U (3/5/2007 a) (0- 0.13727)/(11 - 10) -0.13727 Number of 0 values = 55 Ordered 0 Values n Q 1 -0.274808 2 -0.137749 3 -0.13727 4 -0.0871549 5 -0.0655483 6 -0.0592025 7 -0.0445424 8 -0.0350022 9 -0.033819 10 -0.029908 11 -0.0296012 12 -0.0283742 13 -0.017638 14 -0.0172738 15 -0.016999 16 -0.00718942 17 -0.00683793 18 -0.0056365 19 -0.005301 20 -0.00493536 21 -0.00256423 22 -0.00253067 23 -0.002356 24 -0.00192996 25 -0.000728528 26 -0.000690184 27 0 28 0.00151074 29 0.00206097 30 0.00411235 31 0.00420501 32 0.00444018 33 0.00496549 34 0.00507778 Page 2

O 36 35 0.00573236 0.00572597 37 0.00575153 38 0.00603911 39 0.00609663 40 0.00665261 41 0.00667178 42 0.0139954 43 0.0140337 44 0.0145082 45 0.0166794 46 0.0171204 47 0.0189162 48 0.0206902 49 0.0222393 50 0.0254985 51 0.0287577 52 0.0343175 53 0.0361708 54 0.0431365 55 0.0805215 Sen's Estimator (Median Q) is 0.00151074 Tied Group Value Members 1 0 2 Time Period Observations

. 12/1/2005 1/1/2006 1

1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A =18 B=0 C=0 D=0 E=2 F=0 a = 2970 b = 8910 c = 220 Group Variance = 164 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 21.0644 M1 = (55 - 21.0644)/2.0 = 16.9678

. M2 = (55 + 21.0644)/2.0 + 1 = 39.0322 Lower limit is -0.00683793 = Q(17)

Upper limit is 0.00609663 = Q(39)

-0.00683793 < 0 < 0.00609663 indicating no trend in data.

Page 3

S TEDE E

2 0

0 0

LO CD (o 0ý 0)r o, C) co 0 0 0 0D 0*

0 I-CD . CD C) C 0N C14Q 0

-~ý CNCD-Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-133 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0559816 U (1/1/2006 a) 0.13727 U (12/1/2005 a) (0.0559816 - 0.13727)/(2 - 1) -0.0812883 0.0391104 U (2/1/2006 a) 0. 13727 U (12/1/2005 a) (0.0391104 - 0.13727)/(3 - 1) -0.0490798 0.0732362 U (3/1/2006 a) 0.13727 U (12/1/2005 a) (0.0732362 - 0.13727)/(4 - 1) -0.0213446 0.071319 U (4/1/2006 a) 0.13727 U (12/1/2005 a) (0.071319- 0.13727)/(5 - 1) -0.0164877 0.0394939 U (6/1/2006 a) 0.13727 U (12/1/2005 a) (0.0394939 - 0.13727)/(6 - 1) -0.0195552 0.0260736 U (9/1/2006 a) 0.13727 U (12/1/2005 a) (0.0260736 - 0.13727)/(7 - 1) -0.0185327 0.0254601 U (12/1/2006 a) 0.13727 U (12/1/2005 a) (0.0254601 - 0.13727)/(8 - 1) -0.0159728 0.168037 U (3/5/2007 a) 0.13727 U (12/1/2005 a) (0.168037 - 0.13727)/(9 - 1) 0.00384593 0.0204371 U (6/6/2007 a) 0.13727 U (12/1/2005 a) (0.0204371 - 0.13727)/(10 - 1) -0.0129814 0.0391104 U (2/1/2006 a) 0.0559816 U (1/1/2006 a) (0.0391104 - 0.0559816)/(3 - 2) -0.0168712 0.0732362 U (3/1/2006 a) 0.0559816 U (1/1/2006 a) (0.0732362 - 0.0559816)/(4 - 2) 0.0086273 0.071319 U (4/1/2006 a) 0.0559816 U (1/1/2006 a) (0.071319 - 0.0559816)/(5 - 2) 0.00511247 0.0394939 U (6/1/2006 a) 0.0559816 U (1/1/2006 a) (0.0394939 - 0.0559816)/(6 - 2) -0.00412193 0.0260736 U (9/1/2006 a) 0.0559816 U (1/1/2006 a) (0.0260736 - 0.0559816)/(7 - 2) -0.0059816 0.0254601 U (12/1/2006 a) 0.0559816 U (1/1/2006 a) (0.0254601 - 0.0559816)/(8 - 2) -0.00508691 0.168037 U (3/5/2007 a) 0.0559816 U (1/1/2006 a) (0.168037 - 0.0559816)/(9 - 2) 0.016008 0.0204371 U (6/6/2007 a) 0.0559816 U (1/1/2006 a) (0.0204371 - 0.0559816)/(10 - 2) -0.00444306 0.0732362 U (3/1/2006 a) 0.0391104 U (2/1/2006 a) (0.0732362 - 0.0391104)/(4 - 3) 0.0341258 0.071319 U (4/1/2006 a) 0.0391104 U (2/1/2006 a) (0.071319 - 0.0391104)/(5 - 3) 0.0161043 0.0394939 U (6/1/2006 a) 0.0391104 U (2/1/2006 a) (0.0394939 - 0.0391104)/(6 - 3) 0.000127812 0.0260736 U (9/1/2006 a) 0.0391104 U (2/1/2006 a) (0.0260736 - 0.0391104)/(7 - 3) -0.0032592 0.0254601 U (12/1/2006 a) 0.0391104 U (2/1/2006 a) (0.0254601 - 0.0391104)/(8 - 3) -0.00273006 0.168037 U (3/5/2007 a) 0.0391104 U (2/1/2006 a) (0.168037 - 0.0391104)/(9- 3) 0.0214878 0.0204371 U (6/6/2007 a) 0.0391104 U (2/1/2006 a) (0.0204371 - 0.0391104)/(10- 3) -0.00266762 0.071319 U (4/1/2006 a) 0.0732362 U (3/1/2006 a) (0.071319 - 0.0732362)/(5- 4) -0.00191718 0.0394939 U (6/1/2006 a) 0.0732362 U (3/1/2006 a) (0.0394939 - 0.0732362)/(6 - 4) -0.0168712 0.0260736 U (9/1/2006 a) 0.0732362 U (3/1/2006 a) (0.0260736 - 0.0732362)/(7 - 4) -0.0157209 0.0254601 U (12/1/2006 a) 0.0732362 U (3/1/2006 a) (0.0254601 - 0.0732362)/(8 - 4) -0.011944 0.168037 U (3/5/2007 a) 0.0732362 U (3/1/2006 a) (0.168037 - 0.0732362)/(9 - 4) 0.0189602 0.0204371 U (6/6/2007 a) 0.0732362 U (3/1/2006 a) (0.0204371 - 0.0732362)/(10 - 4) -0.00879985 0.0394939 U (6/1/2006 a) 0.071319 U (4/1/2006 a) (0.0394939 - 0.071319)/(6 - 5) -0.0318252 0.0260736 U (9/1/2006 a) 0.071319 U (4/1/2006 a) (0.0260736 - 0.071319)/(7 - 5) -0.0226227 0.0254601 U (12/1/2006 a) 0.071319 U (4/1/2006 a) (0.0254601 - 0.071319)/(8- 5) -0.0152863 0.168037 U (3/5/2007 a) 0.071319 U (4/1/2006 a) (0.168037 - 0.071319)/(9 - 5) 0.0241796 0.0204371 U (6/6/2007 a) 0.071319 U (4/1/2006 a) (0.0204371 - 0.071319)/(10 - 5) -0.0101764 0.0260736 U (9/1/2006 a) 0.0394939 U (6/1/2006 a) (0.0260736 - 0.0394939)/(7 - 6) -0.0134202 0.0254601 U (12/1/2006 a) 0.0394939 U (6/1/2006 a) (0.0254601 - 0.0394939)/(8 - 6) -0.00701687 0.168037 U (3/5/2007 a) 0.0394939 U (6/1/2006 a) (0.168037 - 0.0394939)/(9 - 6) 0.0428478 0.0204371 U (6/6/2007 a) 0.0394939 U (6/1/2006 a) (0.0204371 - 0.0394939)/(10 - 6) -0.00476419 0.0260736 U (9/1/2006 a) 0.0254601 U (12/1/2006 a) (0.0254601 - 0.0260736)/(8 - 7) -0.000613497 0.168037 U (3/5/2007 a) 0.0260736 U (9/1/2006 a) (0.168037 - 0.0260736)/(9 - 7) 0.0709819 Page 1

0.0204371 U (6/6/2007 a) 0.0260736 U (9/1/2006 a) (0.0204371 - 0.0260736)/(10 - 7) -0.00187883 0.168037 U (3/5/2007 a) 0.0254601 U (12/1/2006 a) (0.168037 - 0.0254601)/(9 - 8) 0.142577 0.0204371 U (6/6/2007 a) 0.0254601 U (12/1/2006 a) (0.0204371 - 0.0254601)/(10 - 8) -0.0025115 0.0204371 U (6/6/2007 a) 0.168037 U (3/5/2007 a) (0.0204371 - 0.168037)/(10 - 9) -0.1476 Number of Q values = 45 Ordered Q Values n Q 1 -0.1476 2 -0.0812883 3 -0.0490798 4 -0.0318252 5 -0.0226227 6 -0.0213446 7 -0.0195552 8 -0.0185327 9 -0.0168712 10 -0.0168712 11 -0.0164877 12 -0.0159728 13 -0.0157209 14 -0.0152863

. 15 16 17

-0.0134202

-0.0129814

-0.011944 18 -0.0101764 19 -0.00879985 20 -0.00701687 21 -0.0059816 22 -0.00508691 23 -0.00476419 24 -0.00444306 25 -0.00412193 26 -0.0032592 27 -0.00273006 28 -0.00266762 29 -0.0025115 30 -0.00191718 31 -0.00187883 32 -0.000613497 33 0.000127812 34 0.00384593 35 0.00511247 36 0.0086273 37 0.016008 38 0.0161043 39 0.0189602 40 0.0214878 41 0.0241796 42 0.0341258 43 S 44 45 0.0428478 0.0709819 0.142577 Page 2

Sen's Estimator (Median Q) is -0.00476419 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0157209 = Q(13)

Upper limit is 0.000127812 = Q(33)

-0.0157209 < 0 < 0.000127812 indicating no trend in data.

Page 3

TEDE 0.4 Time-Series Graph of MW-134 0.35 0.3 0.25 E

0.2 0

a 0A 0

0.15 I 0.1 0.05-(0 (O C C)C o ). CD C

) O C O *0 N C> CD eDate SamplO Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-134 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0148006 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0.0148006 - 0)/(2 - 1) 0.0148006 0.191308 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0.191308 - 0)/(3 - 1) 0.0956542 0.0717025 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0.0717025 - 0)/(4 - 1) 0.0239008 0.351433 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0.351433 - 0)/(5 - 1) 0.0878583 0.153374 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0.153374 - 0)/(6 - 1) 0.0306748 0.37602 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0.37602 - 0)/(7 - 1) 0.0626701 0.0417945 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0.0417945 - 0)/(8 - 1) 0.00597064 0.0398773 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0.0398773 - 0)/(9 - 1) 0.00498466 0.0429448 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0.0429448 - 0)/(10 - 1) 0.00477164 0.191308 U (2/1/2006 a) 0.0148006 U (1/1/2006 a) (0.191308 - 0.0148006)/(3 - 2) 0'.176508 0.0717025 U (3/1/2006 a) 0.0148006 U (1/1/2006 a) (0.0717025 - 0.0148006)/(4 - 2) 0.0284509 0.351433 U (4/1/2006 a) 0.0148006 U (1/1/2006 a) (0.351433 - 0.0148006)/(5 - 2) 0.112211 0.153374 U (6/1/2006 a) 0.0148006 U (1/1/2006 a) (0.153374 - 0.0148006)/(6 - 2) 0.0346434 0.37602 U (9/1/2006 a) 0.0148006 U (1/1/2006 a) (0.37602 - 0.0148006)/(7 - 2) 0.072244 0.0417945 U (12/1/2006 a) 0.0148006 U (1/1/2006 a) (0.0417945 - 0.0148006)/(8 - 2) 0.00449898 0.0398773 U (3/5/2007 a) 0.0148006 U (1/1/2006 a) (0.0398773 - 0.0148006)/(9 - 2) 0.00358238 0.0429448 U (6/6/2007 a) 0.0148006 U (1/1/2006 a) (0.0429448 - 0.0148006)/(10 - 2) 0.00351802 0.0717025 U (3/1/2006 a) 0.191308 U (2/1/2006 a) (0.0717025 - 0.191308)/(4 - 3) -0.119606 0.351433 U (4/1/2006 a) 0.191308 U (2/1/2006 a) (0.351433 - 0.191308)/(5 - 3) 0.0800624 0.153374 U (6/1/2006 a) 0.191308 U (2/1/2006 a) (0.153374 - 0.191308)/(6- 3) -0.0126447 0.37602 U (9/1/2006 a) 0.191308 U (2/1/2006 a) (0.37602 - 0.191308)/(7 - 3) 0.046178 0.0417945 U (12/1/2006 a) 0.191308 U (2/1/2006 a) (0.0417945 - 0.191308)/(8- 3) -0.0299028 0.0398773 U (3/5/2007 a) 0.191308 U (2/1/2006 a) (0.0398773 - 0.191308)/(9 - 3) -0.0252385 0.0429448 U (6/6/2007 a) 0.191308 U (2/1/2006 a) (0.0429448 - 0.191308)/(10 - 3) -0.0211948 0.351433 U (4/1/2006 a) 0.0717025 U (3/1/2006 a) (0.351433 - 0.0717025)/(5 - 4) 0.279731 0.153374 U (6/1/2006 a) 0.0717025 U (3/1/2006 a) (0.153374 - 0.0717025)/(6 - 4) 0.0408359 0.37602 U (9/1/2006 a) 0.0717025 U (3/1/2006 a) (0.37602 - 0.0717025)/(7 - 4) 0.101439 0.0417945 U (12/1/2006 a) 0.0717025 U (3/1/2006 a) (0.0417945 - 0.0717025)/(8 - 4) -0.00747699 0.0398773 U (3/5/2007 a) 0.0717025 U (3/1/2006 a) (0.0398773 - 0.0717025)/(9 - 4) -0.00636503 0.0429448 U (6/6/2007 a) 0.0717025 U (3/1/2006 a) (0.0429448 - 0.0717025)/(10 - 4) -0.00479294 0.153374 U (6/1/2006 a) 0.351433 U (4/1/2006 a) (0.153374 - 0.351433)/(6 - 5) -0.198059 0.37602 U (9/1/2006 a) 0.351433 U (4/1/2006 a) (0.37602 - 0.351433)/(7 - 5) 0.0122936 0.0417945 U (12/1/2006 a) 0.351433 U (4/1/2006 a) (0.0417945 - 0.351433)/(8 - 5) -0.103213 0.0398773 U (3/5/2007 a) 0.351433 U (4/1/2006 a) (0.0398773 - 0.351433)/(9 - 5) -0.077889 0.0429448 U (6/6/2007 a) 0.351433 U (4/1/2006 a) (0.0429448 - 0.351433)/(10 - 5) -0.0616977 0.37602 U (9/1/2006 a) 0.153374 U (6/1/2006 a) (0.37602 - 0.153374)/(7 - 6) 0.222646 0.0417945 U (12/1/2006 a) 0.153374 U (6/1/2006 a) (0.0417945 - 0.153374)/(8 - 6) -0.0557899 0.0398773 U (3/5/2007 a) 0.153374 U (6/1/2006 a) (0.0398773 - 0.153374)/(9 - 6) -0.0378323 0.0429448 U (6/6/2007 a) 0.153374 U (6/1/2006 a) (0.0429448 - 0.153374)/(10 - 6) -0.0276074 0.37602 U (9/1/2006 a) 0.0417945 U (12/1/2006 a) (0.0417945 - 0.37602)/(8 - 7) -0.334226 0.0398773 U (3/5/2007 a) 0.37602 U (9/1/2006 a) (0.0398773 - 0.37602)/(9 - 7) -0.168072 Page 1

0.0429448 U (6/6/2007 a) 0.37602 U (9/1/2006 a) (0.0429448 - 0.37602)/(10 - 7) -0.111025 0.0398773 U (3/5/-2007 a) 0.0417945 U (12/1/2006 a) (0.0398773 - 0.0417945)/(9 - 8) -0.00191718 0.0429448 U (6/6/2007 a) 0.0417945 U (12/1/2006 a) (0.0429448 - 0.0417945)/(10 - 8) 0.000575153 0.0429448 U (6/6/2007 a) 0.0398773 U (3/5/2007 a) (0.0429448 - 0.0398773)/(10 - 9) 0.00306748 Number of Q values = 45 Ordered Q Values n a 1 -0.334226 2 -0.198059 3 -0.168072 4 -0.119606 5 -0.111025 6 -0.103213 7 -0.077889 8 -0.0616977 9 -0.0557899 10 -0.0378323 11 -0.0299028 12 -0.0276074 13 -0.0252385 14 -0.0211948

. 15 16 17

-0.0126447

-0.00747699

-0.00636503 18 -0.00479294 19 -0.00191718 20 0.000575153 21 0.00306748 22 0.00351802 23 0.00358238 24 0.00449898 25 0.00477164 26 0.00498466 27 0.00597064 28 0.0122936 29 0.0148006 30 0.0239008 31 0.0284509 32 0.0306748 33 0.0346434 34 0.0408359 35 0.046178 36 0.0626701 37 0.072244 38 0.0800624 39 0.0878583 40 0.0956542 41 0.101439 42 0.112211 43 O 44 45 0.176508 0.222646 0.279731 Page 2

Sen's Estimator (Median Q) is 0.00358238 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 18.39 M1 = (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0252385 = Q(13)

Upper limit is 0.0346434 = Q(33)

-0.0252385 < 0 < 0.0346434 indicating no trend in data.

Page 3

TEDE Time-Series Graph of MW-135 10 8

E 0

d) 4 0

2 C 6,00*, 10C (0 (o to o

D Co 0o (00 0

0ý C'J 0>

C, 0

0C C

C)C- -. D QN Qt N- C,~)

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-135 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 ND<0 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(8 - 1) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0- 0)/(10 - 1) 0 ND<0 U (2/1/2006 a) ND<O U (1/1/2006 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(5 - 2) 0 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 ND<0 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(8 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3) 0 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(8 - 3) 0 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(9 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4) 0 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5) 0 ND<0 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5) 0 ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5) 0 ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(10 - 5) 0 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(8 - 6) 0 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0- 0)/(10- 6) 0 ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<O U (6/6/2007 a) ND<O U (9/1/2006 a) (0 -0)/(10i - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) 0 Number of 0 values = 45 Ordered Q Values n Q 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0

. 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0 42 0 43 0 44 0 45 0 Page 2

Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 10 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 2250 B=0 C = 720 D=0 E = 90 F=0 a =2250 b = 6480

. c= 180 Group Variance =0 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C=0 M1 = (45 - 0)/2.0 = 22.5 M2 = (45 + 0)/2.0 + 1 = 23.5 Lower limit is 0 = Q(23)

Upper limit is 0 = Q(24) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE 0.4 0.35

'Time-Series Graph of MW-136D 0.35 0.25 E

Et 0.2 0

0.5 C 0.15\

0.05

(. (0 00 0t(0 (0. 0(. .00 0 0 0 0 0 (0D 0 0 0 CN 0 C) (N (NI 0 SaDl Da (N C. 00( (

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-136D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 0.0483129 U (1/1/2006 a) 0.139737 U (12/1/2005 a) (0.0483129- 0.139737)/(2 - 1) -0.0914239 0.215124 U (2/1/2006 a) 0.139737 U (12/1/2005 a) (0.215124 - 0.139737)/(3 - 1) 0.0376937 0.0724693 U (3/1/2006 a) 0.139737 U (12/1/2005 a) (0.0724693 - 0.139737)/(4 - 1) -0.0224225 0.120399 U (4/1/2006 a) 0. 139737 U (12/1/2005 a) (0.120399 - 0.139737)/(5 - 1) -0.0048345 0.0843558 U (6/1/2006 a) 0.139737 U (12/1/2005 a) (0.0843558 - 0.139737)/(6 - 1) -0.0110762 0.203775 U (9/1/2006 a) 0.139737 U (12/1/2005 a) (0.203775 - 0.139737)/(7 - 1) 0.0106731 0.39884 U (12/1/2006 a) 0.139737 U (12/1/2005 a) (0.39884 - 0.139737)/(8 - 1) 0.0370148 0.302503 U (3/5/2007 a) 0.139737 U (12/1/2005 a) (0.302503 - 0.139737)/(9 - 1) 0.0203458 0.0205138 U (6/6/2007 a) 0.139737 U (12/1/2005 a) (0.0205138 - 0.139737)/(10 - 1) -0.013247 0.215124 U (2/1/2006 a) 0.0483129 U (1/1/2006 a) (0.215124 - 0.0483129)/(3 - 2) 0.166811 0.0724693 U (3/1/2006 a) 0.0483129 U (1/1/2006 a) (0.0724693 - 0.0483129)/(4 - 2) 0.0120782 0.120399 U (4/1/2006 a) 0.0483129 U (1/1/2006 a) (0.120399 - 0.0483129)/(5 - 2) 0.0240286 0.0843558 U (6/1/2006 a) 0.0483129 U (1/1/2006 a) (0.0843558 - 0.0483129)/(6 - 2) 0.00901074 0.203775 U (9/1/2006 a) 0.0483129 U (1/1/2006 a) (0.203775 - 0.0483129)/(7 - 2) 0.0310925 0.39884 U (12/1/2006 a) 0.0483129 U (1/1/2006 a) (0.39884 - 0.0483129)/(8 - 2) 0.0584212 0.302503 U (3/5/2007 a) 0.0483129 U (1/1/2006 a) (0.302503 - 0.0483129)/(9 - 2) 0.0363129 0.0205138 U (6/6/2007 a) 0.0483129 U (1/1/2006 a) (0.0205138 - 0.0483129)/(10 - 2) -0.00347488 0.0724693 U (3/1/2006 a) 0.215124 U (2/1/2006 a) (0.0724693 - 0.215124)/(4 - 3) -0.142655 0.120399 U (4/1/2006 a) 0.215124 U (2/1/2006 a) (0.120399 - 0.215124)/(5- 3) -0.0473627 0.0843558 U (6/1/2006 a) 0.215124 U (2/1/2006 a) (0.0843558 - 0.215124)/(6 - 3) -0.0435894 0.203775 U (9/1/2006 a) 0.215124 U (2/1/2006 a) (0.203775 - 0.215124)/(7 - 3) -0.00283719 0.39884 U (12/1/2006 a) 0.215124 U (2/1/2006 a) (0.39884 - 0.215124)/(8 - 3) 0.0367432 0.302503 U (3/5/2007 a) 0.215124 U (2/1/2006 a) (0.302503 - 0.215124)/(9 - 3) 0.0145632 0.0205138 U (6/6/2007 a) 0.215124 U (2/1/2006 a) (0.0205138 - 0.215124)/(10 - 3) -0.0278015 0.120399 U (4/1/2006 a) 0.0724693 U (3/1/2006 a) (0.120399 - 0.0724693)/(5 - 4) 0.0479294 0.0843558 U (6/1/2006a) 0.0724693 U (3/1/2006 a) (0.0843558 - 0.0724693)/(6 - 4) 0.00594325 0.203775 U (9/1/2006 a) 0.0724693 U (3/1/2006 a) (0.203775 - 0.0724693)/(7 - 4) 0.0437687 0.39884 U (12/1/2006 a) 0.0724693 U (3/1/2006 a) (0.39884 - 0.0724693)/(8 - 4) 0.0815927 0.302503 U (3/5/2007 a) 0.0724693 U (3/1/2006 a) (0.302503 - 0.0724693)/(9 - 4) 0.0460068 0.0205138 U (6/6/2007 a) 0.0724693 U (3/1/2006 a) (0.0205138 - 0.0724693)/(10 - 4) -0.00865925 0.0843558 U (6/1/2006 a) 0.120399 U (4/1/2006 a) (0.0843558 - 0.120399)/(6 - 5) -0.0360429 0.203775 U (9/1/2006 a) 0.120399 U (4/1/2006 a) (0.203775 - 0.120399)/(7- 5) 0.0416883 0.39884 U (12/1/2006 a) 0.120399 U (4/1/2006 a) (0.39884 - 0.120399)/(8 - 5) 0.0928138 0.302503 U (3/5/2007 a) 0.120399 U (4/1/2006 a) (0.302503 - 0.120399)/(9 - 5) 0.0455261 0.0205138 U (6/6/2007 a) 0.120399 U (4/1/2006 a) (0.0205138 - 0.120399)/(10 - 5) -0.019977 0.203775 U (9/1/2006 a) 0.0843558 U (6/1/2006 a) (0.203775 - 0.0843558)/(7 - 6) 0.11942 0.39884 U (12/1/2006 a) 0.0843558 U (6/1/2006 a) (0.39884 - 0.0843558)/(8 - 6) 0.157242 0.302503 U (3/5/2007 a) 0.0843558 U (6/1/2006 a) (0.302503 - 0.0843558)/(9 - 6) 0.0727158 0.0205138 U (6/6/2007 a) 0.0843558 U (6/1/2006 a) (0.0205138 - 0.0843558)/(10 - 6) -0.0159605 0.39884 U (12/1/2006 a) 0.203775 U (9/1/2006 a) (0.39884 - 0.203775)/(8 - 7) 0.195065 0.302503 U (3/5/2007 a) 0.203775 U (9/1/2006 a) (0.302503 - 0.203775)/(9 - 7) 0.0493639 Page 1

0.0205138 U (6/6/2007 a) 0.203775 U (9/1/2006 a) (0.0205138 - 0.203775)/(10 - 7) -0.0610872 0.302503 U (3/5/2007 a) 0.39884 U (12/1/2006 a) (0.302503 - 0.39884)/(9 - 8) -0.096337 0M0051 38 U (6/6/2007 a) 0.39884 U (12/1/2006 a) (0.0205138 - 0.39884)/(10 - 8) -0.189163 0.0205138 U (6/6/2007 a) 0.302503 U (3/5/2007 a) (0.0205138 - 0.302503)/(10 - 9) -0.281989 Number of Q values = 45 Ordered 0 Values n Q 1 -0.281989 2 -0.189163 3 -0.142655 4 -0.096337 5 -0.0914239 6 -0.0610872 7 -0.0473627 8 -0.0435894 9 -0.0360429 10 -0.0278015 11 -0.0224225 12 -0.019977 13 -0.0159605 14 -0.013247

. 15 16 17

-0.0110762

-0.00865925

-0.0048345 18 -0.00347488 19 -0.00283719 20 0.00594325 21 0.00901074 22 0.0106731 23 0.0120782 24 0.0145632 25 0.0203458 26 0.0240286 27 0.0310925 28 0.0363129 29 0.0367432 30 0.0370148 31 0.0376937 32 0.0416883 33 0.0437687 34 0.0455261 35 0.0460068 36 0.0479294 37 0.0493639 38 0.0584212 39 0.0727158 40 0.0815927 41 0.0928138 42 0.11942 43 0.157242 44 0.166811 45 0.195065 Page 2

Sen's Estimator (Median Q) is 0.0120782 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 0=0 D=0 E=0 F=0 a = 2250 b = 6480 c = 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485

.M1 C = 18.39

= (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0159605 = Q(13)

Upper limit is 0.0437687 = Q(33)

-0.0159605 < 0 < 0.0437687 indicating no trend in data.

Page 3

TEDE Time-Series Graph of MW-136S 0.1 N I a)

E 0.'I.

2 C

a1) 0 t-0 0.05 I

(0 (0 Lt (0 (0 0 0 I.-

0 0 0 (0 0 C') 0 0 0 0 CD) 0 C-(N 0 04 C') C' 0 ZN- (0-C.-

(D Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-136S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) 0 0.083589 U (1/1/2006 a) 0.141104 U (12/1/2005 a) (0.083589 - 0.141104)/(2 - 1) -0.0575153 0.0456288 U (2/1/2006 a) 0.141104 U (12/1/2005 a) (0.0456288 - 0.141104)/(3- 1) -0.0477377 0.0425613 U (3/1/2006 a) 0.141104 U (12/1/2005 a) (0.0425613 - 0.141104)/(4 - 1) -0.0328476 0.0555982 U (4/1/2006 a) 0.141104 U (12/1/2005 a) (0.0555982 - 0.141104)/(5- 1) -0.0213765 0.0345859 U (6/1/2006 a) 0.141104 U (12/1/2005 a) (0.0345859 - 0.141104)/(6 - 1) -0.0213037 0.0183282 U (9/1/2006 a) 0.141104 U (12/1/2005 a) (0.0183282 - 0.141104)/(7 - 1) -0.0204627 0.0164877 U (12/1/2006 a) 0.141104 U (12/1/2005 a) (0.0164877 - 0.141104)/(8 - 1) -0.0178024 0.0137653 U (3/5/2007 a) 0.141104 U (12/1/2005 a) (0.0137653 - 0.141104)/(9 - 1) -0.0159174 0.0255752 U (6/6/2007 a) 0.141104 U (12/1/2005 a) (0.0255752 - 0.141104)/(10 - 1) -0.0128366 0.0456288 U (2/1/2006 a) 0.083589 U (1/1/2006 a) (0.0456288 - 0.083589)/(3 - 2) -0.0379601 0.0425613 U (3/1/2006 a) 0.083589 U (1/1/2006 a) (0.0425613 - 0.083589)/(4 - 2) -0.0205138 0.0555982 U (4/1/2006 a) 0.083589 U (1/1/2006 a) (0.0555982 - 0.083589)/(5 - 2) -0.00933027 0.0345859 U (6/1/2006 a) 0.083589 U (1/1/2006 a) (0.0345859 - 0.083589)/(6 - 2) -0.0122508 0.0183282 U (9/1/2006 a) 0.083589 U (1/1/2006 a) (0.0183282 - 0.083589)/(7 - 2) -0.0130521 0.0164877 U (12/1/2006 a) 0.083589 U (1/1/2006 a) (0.0164877 - 0.083589)/(8 - 2) -0.0111835 0.0137653 U (3/5/2007 a) 0.083589 U (1/1/2006 a) (0.0137653 - 0.083589)/(9 - 2) -0.0099748 0.0255752 U (6/6/2007 a) 0.083589 U (1/1/2006 a) (0.0255752 - 0.083589)/(10 - 2) -0.00725173 0.0425613 U (3/1/2006 a) 0.0456288 U (2/1/2006 a) (0.0425613 - 0.0456288)/(4 - 3) -0.00306748 0.0555982 U (4/1/2006 a) 0.0456288 U (2/1/2006 a) (0.0555982 - 0.0456288)/(5 - 3) 0.00498466 0.0345859 U (6/1/2006 a) 0.0456288 U (2/1/2006 a) (0.0345859 - 0.0456288)/(6 - 3) -0.00368098 0.0183282 U (9/1/2006 a) 0.0456288 U (2/1/2006 a) (0.0183282 - 0.0456288)/(7 - 3) -0.00682515 0.0164877 U (12/1/2006 a) 0.0456288 U (2/1/2006 a) (0.0164877 - 0.0456288)/(8 - 3) -0.00582822 0.0137653 U (3/5/2007 a) 0.0456288 U (2/1/2006 a) (0.0137653 - 0.0456288)/(9 - 3) -0.00531058 0.0255752 U (6/6/2007 a) 0.0456288 U (2/1/2006 a) (0.0255752 - 0.0456288)/(10 - 3) -0.00286481 0.0555982 U (4/1/2006 a) 0.0425613 U (3/1/2006 a) (0.0555982 - 0.0425613)/(5- 4) 0.0130368 0.0345859 U (6/1/2006 a) 0.0425613 U (3/1/2006 a) (0.0345859 - 0.0425613)/(6- 4) -0.00398773 0.0183282 U (9/1/2006 a) 0.0425613 U (3/1/2006 a) (0.0183282 - 0.0425613)/(7- 4) -0.00807771 0.0164877 U (12/1/2006 a) 0.0425613 U (3/1/2006 a) (0.0164877- 0.0425613)/(8 - 4) -0.0065184 0.0137653 U (3/5/2007 a) 0.0425613 U (3/1/2006 a) (0.0137653 - 0.0425613)/(9 - 4) -0.0057592

,0.0255752 U (6/6/2007 a) 0.0425613 U (3/1/2006 a) (0.0255752 - 0.0425613)/(10 - 4) -0.00283103 0.0345859 U (6/1/2006 a) 0.0555982 U (4/1/2006 a) (0.0345859 - 0.0555982)/(6 - 5) -0.0210123 0.0183282 U (9/1/2006 a) 0.0555982 U (4/1/2006 a) (0.0183282 - 0.0555982)/(7- 5) -0.018635 0.0164877 U (12/1/2006 a) 0.0555982 U (4/1/2006 a) (0.0164877 - 0.0555982)/(8 - 5) -0.0130368 0.0137653 U (3/5/2007 a) 0.0555982 U (4/1/2006 a) (0.0137653 - 0.0555982)/(9 - 5) -0.0104582 0.0255752 U (6/6/2007 a) 0.0555982 U (4/1/2006 a) (0.0255752 - 0.0555982)/(10 - 5) -0.0060046 0.0183282 U (9/1/2006 a) 0.0345859 U (6/1/2006 a) (0.0183282- 0.0345859)/(7 - 6) -0.0162577 0.0164877 U (12/1/2006 a) 0.0345859 U (6/1/2006 a) (0.0164877- 0.0345859)/(8- 6) -0.00904908 0.0137653 U (3/5/2007 a) 0.0345859 U (6/1/2006 a) (0.0137653- 0.0345859)/(9 - 6). -0.00694018 0.0255752 U (6/6/2007 a) 0.0345859 U (6/1/2006 a) (0.0255752 - 0.0345859)/(10 - 6) -0.00225268 0.0183282 U (9/1/2006 a) 0.0164877 U (12/1/2006 a) (0.0164877-0.0183282)/(8-7) -0.00184049 0.0137653 U (3/5/2007 a) 0.0183282 U (9/1/2006 a) (0.0137653-0.0183282)/(9-7) -0.00228144 Page 1

0.0255752 U (6/6/2007 a) 0.0183282 U (9/1/2006 a) (0.0255752 - 0.0183282)/(10 - 7) 0.00241564 0.0137653 U (3/5/2007 a) 0.0164877 U (12/1/2006 a) (0.0137653 - 0.0164877)/(9 - 8) -0.00272239 0.0255752 U (6/6/2007 a) 0.01 64877 U (12/1/2006 a) (0.0255752 - 0.0164877)/(10 - 8) 0.00454371 0.0255752 U (6/6/2007 a) 0.0137653 U (3/5/2007 a) (0.0255752 - 0.0137653)/(10 - 9) 0.0118098 Number of 0 values = 45 Ordered Q Values n a 1 -0.0575153 2 -0.0477377 3 -0.0379601 4 -0.0328476 5 -0.0213765 6 -0.0213037 7 -0.0210123 8 * -0.0205138 9 -0.0204627 10 -0.018635 11 -0.0178024 12 -0.0162577 13 -0.0159174 14 -0.0130521

. 15 16 17

-0.0130368

-0.0128366

-0.0122508 18 -0.0111835 19 -0.0104582 20 -0.0099748 21 -0.00933027 22 -0.00904908 23 -0.00807771 24 -0.00725173 25 -0.00694018 26 -0.00682515 27 -0.0065184 28 -0.0060046 29 -0.00582822 30 -0.0057592 31 -0.00531058 32 -0.00398773 33 -0.00368098 34 -0.00306748 35 -0.00286481 36 -0.00283103 37 -0.00272239 38 -0.00228144 39 -0.00225268 40 -0.00184049 41 0.00241564

. 42 43 44 0.00454371 0.00498466 0.0118098 45 0.0130368 Page 2

Sen's Estimator (Median Q) is -0.00807771 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 2250 b = 6480 c= 180 Group Variance = 125 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 OM1 C = 18.39

= (45 - 18.39)/2.0 = 13.305 M2 = (45 + 18.39)/2.0 + 1 = 32.695 Lower limit is -0.0159174 = Q(13)

Upper limit is -0.00368098 = Q(33)

-0.00368098 < 0 indicating a downward trend in data.

Page 3

0 TEDE E

0 76 a) 0 u-C.0 (0 U) (0 (o 0 0C-0 C co 0 0 0 0 C-Q N C-D a 0D (N 0 06 Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-137 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q 1.291 U (1/1/2006 a) 1.39371 U (12/1/2005 a) (1.291 - 1.39371)/(2 - 1) -0.102714 1.06497 U (2/1/2006 a) 1.39371 U (12/1/2005 a) (1.06497 - 1.39371)/(3 - 1) -0.164372 0.572097 U (3/1/2006 a) 1.39371 U (12/1/2005 a) (0.572097 - 1.39371)/(4 - 1) -0.273872 1.20812 U (4/1/2006 a) 1.39371 U (12/1/2005 a) (1.20812 - 1.39371)/(5 - 1) -0.0463983 0.714615 U (6/1/2006 a) 1.39371 U (12/1/2005 a) (0.714615- 1.39371)/(6- 1) -0.13582 7.76487 U (9/1/2006 a) 1.39371 U (12/1/2005 a) (7.76487 - 1.39371)/(7 - 1) 1.06186 7.7894 U (10/31/2006 a) 1.39371 U (12/1/2005 a) (7.7894 - 1.39371)/(8 - 1) 0.91367 2.52991 U (12/1/2006 a) 1.39371 U (12/1/2005 a) (2.52991 - 1.39371)/(9 - 1) 0.142025 2.4184 U (3/5/2007 a) 1.39371 U (12/1/2005 a) (2.4184 - 1.39371)/(10 - 1) 0.113854 1.23851 U (4/1/2007 a) 1.39371 U (12/1/2005 a) (1.23851 - 1'.39371)/(11 - 1) -0.0155205 0.58955 U (6/6/2007 a) 1.39371 U (12/1/2005 a) (0.58955- 1.39371)/(12 - 1) -0.0731058 1.06497 U (2/1/2006 a) 1.291 U (1/1/2006 a) (1.06497 - 1.291)/(3 - 2) -0.22603 0.572097 U (3/1/2006 a) 1.291 U (1/1/2006 a) (0.572097 - 1.291)/(4- 2) -0.359452 1.20812 U (4/1/2006 a) 1.291 U (1/1/2006 a) (1.20812 - 1.291)/(5 - 2) -0.0276266 0.714615 U (6/1/2006 a) 1.291 U (1/1/2006 a) (0.714615 - 1.291)/(6- 2) -0.144096

. 7.76487 U (9/1/2006 a) 7.7894 U (10/31/2006 a) 2.52991 U (12/1/2006 a) 1.291 1.291 1.291 U (1/1/2006 U (1/1/2006 U (1/1/2006 a) a)

a)

(7.76487 - 1.291)/(7- 2)

(7.7894 - 1.291)/(8- 2)

(2.52991 - 1.291)/(9- 2) 1.29477 1.08307 0.176988 2.4184 U (3/5/2007 a) 1.291 U (1/1/2006 a) (2.4184 - 1.291)/(10 - 2) 0.140925 1.23851 U (4/1/2007 a) 1.291 U (1/1/2006 a) (1.23851 - 1.291)/(11 - 2) -0.00583237 0.58955 U (6/6/2007 a) 1.291 U (1/1/2006 a) (0.58955 - 1.291)/(12- 2) -0.070145 0.572097 U (3/1/2006 a) 1.06497 U (2/1/2006 a) (0.572097 - 1.06497)/(4 - 3) -0.492873 1.20812 U (4/1/2006 a) 1.06497 U (2/1/2006 a) (1.20812 - 1.06497)/(5 - 3) 0.0715753 0.714615 U (6/1/2006 a) 1.06497 U (2/1/2006 a) (0.714615 - 1.06497)/(6 - 3) -0.116785 7.76487 U (9/1/2006 a) 1.06497 U (2/1/2006 a) (7.76487 - 1.06497)/(7 - 3) 1.67498 7.7894 U (10/31/2006 a) 1.06497 U (2/1/2006 a) (7.7894 - 1.06497)/(8 - 3) 1.34489 2.52991 U (12/1/2006 a) 1.06497 U (2/1/2006 a) (2.52991 - 1.06497)/(9 - 3) 0.244157 2.4184 U (3/5/2007 a) 1.06497 U (2/1/2006 a) (2.4184 - 1.06497)/(10- 3) 0.193347 1.23851 U (4/1/2007 a) 1.06497 U (2/1/2006 a) (1.23851 - 1.06497)/(11 - 3) 0.0216924 0.58955 U (6/6/2007 a) 1.06497 U (2/1/2006 a) (0.58955 - 1.06497)/(12 - 3) -0.0528244 1.20812 U (4/1/2006 a) 0.572097 U (3/1/2006 a) (1.20812 - 0.572097)/(5 - 4) 0.636024 0.714615 U (6/1/2006 a) 0.572097 U (3/1/2006 a) (0.714615 - 0.572097)/(6 - 4) 0.0712592 7.76487 U (9/1/2006 a) 0.572097 U (3/1/2006 a) (7.76487 - 0.572097)/(7 - 4) 2.39759 7.7894 U (10/31/2006 a) 0.572097 U (3/1/2006 a) (7.7894 - 0.572097)/(8 - 4) 1.80433 2.52991 U (12/1/2006 a) 0.572097 U (3/1/2006 a) (2.52991 - 0.572097)/(9 - 4) 0.391563 2.4184 U (3/5/2007 a) 0.572097 U (3/1/2006 a) (2.4184 - 0.572097)/(10 - 4) 0.307717 1.23851 U (4/1/2007 a) 0.572097 U (3/1/2006 a) (1.23851 - 0.572097)/(11 - 4) 0.0952017 0.58955 U (6/6/2007 a) 0.572097 U (3/1/2006 a) (0.58955 - 0.572097)/(12 - 4) 0.00218165 0.714615 U (6/1/2006 a) 1.20812 U (4/1/2006 a) (0.714615 - 1.20812)/(6- 5) -0.493505 7.76487 U (9/1/2006 a) 1.20812 U (4/1/2006 a) (7.76487 - 1.20812)/(7- 5)

O 7.7894 U (10/31/2006 a) 1.20812 U (4/1/2006 a) (7.7894 - 1.20812)/(8 - 5) 3.27838 2.19376 2.52991 U (12/1/2006 a) 1.20812 U (4/1/2006 a) (2.52991 - 1.20812)/(9 - 5) 0.330448 2.4184 U (3/5/2007 a) 1.20812 U (4/1/2006 a) (2.4184 - 1.20812)/(10 - 5) 0.242056 Page 1

. 0.58955 1.23851 U U (6/6/2007 (4/1/2007 a) 1.20812 U (4/1/2006 a) 1.20812 U (4/1/2006 a)

(1.23851 - 1.20812)/(11 - 5)

(0.58955 - 1.20812)/(12 - 5) 0.00506474

-0.0883672 7.76487 U (9/1/2006 a) 0.714615 U (6/1/2006 a) (7.76487 - 0.714615)/(7 - 6) 7.05026 7.7894 U (10/31/2006 a) 0.714615 U (6/1/2006 a) (7.7894 - 0.714615)/(8 - 6) 3.53739 2.52991 U (12/1/2006 a) 0.714615 U (6/1/2006 a) (2.52991 - 0.714615)/(9- 6) 0.605099 2.4184 U (3/5/2007 a) 0.714615 U (6/1/2006 a) (2.4184 - 0.714615)/(10 - 6) 0.425947 1.23851 U (4/1/2007 a) 0.714615 U (6/1/2006 a) (1.23851 - 0.714615)/(11 - 6) 0.104779 0.58955 U (6/6/2007 a) 0.714615 U (6/1/2006 a) (0.58955 - 0.714615)/(12 - 6) -0.0208442 7.7894 U (10/31/2006 a) 7.76487 U (9/1/2006 a) (7.7894 - 7.76487)/(8 - 7) 0.0245296 2.52991 U (12/1/2006 a) 7.76487 U (9/1/2006 a) (2.52991 - 7.76487)/(9 - 7) -2.61748 2.4184 U (3/5/2007 a) 7.76487 U (9/1/2006 a) (2.4184 - 7.76487)/(10- 7) -1.78216 1.23851 U (4/1/2007 a) 7.76487 U (9/1/2006 a) (1.23851 - 7.76487)/(11 - 7) -1.63159 0.58955 U (6/6/2007 a) 7.76487 U (9/1/2006 a) (0.58955 - 7.76487)/(12 - 7) -1.43506 2.52991 U (12/1/2006 a) 7.7894 U (10/31/2006 a) (2.52991 - 7.7894)/(9 - 8) -5.25949 2.4184 U (3/5/2007 a) 7.7894 U (10/31/2006 a) (2.4184- 7.7894)/(10- 8) -2.6855 1.23851 U (4/1/2007 a) 7.7894 U (10/31/2006 a) (1.23851 - 7.7894)/(11 - 8) -2.18363 0.58955 U (6/6/2007 a) 7.7894 U (10/31/2006 a) (0;58955 - 7.7894)/(12 - 8) -1.79996 2.4184 U (3/5/2007 a) 2.52991 U (12/1/2006 a) (2.4184 - 2.52991)/(10- 9) -0.111512 1.23851 U (4/1/2007 a) 2.52991 U (12/1/2006 a) (1.23851 - 2.52991)/(11 - 9) -0.645702 0.58955 U (6/6/2007 a) 2.52991 U (12/1/2006 a) (0.58955 - 2.52991)/(12 - 9) -0.646788 1.23851 U (4/1/2007 a) 2.4184 U (3/5/2007 a) (1.23851 - 2.4184)/(11 - 10) -1.17989 0.58955 U (6/6/2007 a) 2.4184 U (3/5/2007 a) (0.58955 - 2.4184)/(12 - 10) -0.914426 S 0.58955 U(6/6/2007 a) 1.23851 U (4/1/2007 a) (0.58955 - 1.23851)/(12 - 11) -0.648959 Number of Q values = 66 Ordered Q Values n Q 1 -5.25949 2 -2.6855 3 -2.61748 4 -2.18363 5 -1.79996 6 -1.78216 7 -1.63159 8 -1.43506 9 -1.17989 10 -0.914426 11 -0.648959 12 -0.646788 13 -0.645702 14 -0.493505 15 -0.492873 16 -0.359452 17 -0.273872 18 -0.22603 O 19 20 21

-0.164372

-0.144096

-0.13582 22 -0.116785 Page 2

24 23 -0.102714

-0.111512 25 -0.0883672 26 -0.0731058 27 -0.070145 28 -0.0528244 29 -0.0463983 30 -0.0276266 31 -0.0208442 32 -0.0155205 33 -0.00583237 34 0.00218165 35 0.00506474 36 0.0216924 37 0.0245296 38 0.0712592 39 0.0715753 40 0.0952017 41 0.104779 42 0.113854 43 0.140925 44 0.142025 45 0.176988 46 0.193347 47 0.242056 48 0.244157 49 0.307717 50 0.330448 51 0.391563 52 0.425947 53 0.605099 54 0.636024 55 0.91367 56 1.06186 57 1.08307 58 1.29477 59 1.34489 60 1.67498 61 1.80433 62 2.19376 63 2.39759 64 3.27838 65 3.53739 66 7.05026 Sen's Estimator (Median Q) is -0.00182536 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 10/31/2006 1 12/1/2006 1 3/5/2007 1 Page 3

. 6/6/2007 4/1/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 3828 b = 11880 c = 264 Group Variance = 212.667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 23.987 M1 = (66 - 23.987)/2.0 = 21.0065 M2 = (66 + 23.987)/2.0 + 1 = 45.9935 Lower limit is -0.13582 = Q(21)

Upper limit is 0.193347 Q 0(46)

-0.13582 < 0 < 0.193347 indicating no trend in data.

Page 4

TEDE 1C Time-Series Graph of MW-138 E

E 7,

c 0

2

, o io oI I oI o I ° II o) 0 0 (.0 0( 00 00C- 0 C.-

o o 0 0 (N (N 0 0 (N (N 0 0,10(1 0 (N 0 (N-U)~ý Ca N mpl Date Q.

C.>

N(

C)(

Sample Date Page 1

I Sen's Slope Analysis Parameter: TEDE Location: MW-138 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<O U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 ND<0 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(5 - 1) 0 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0- 0)/(6- 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 ND<0 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(8 - 1) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0- 0)/(10- 1) 0 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(3 - 2)

ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)1(4- 2)

ND<0 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0- 0)/(5- 2)

ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2)

ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2)

ND<0 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(8 - 2)

ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(9 - 2)

ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0- 0)/(10- 2)

ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3)

ND<0 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(5 - 3)

ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3)

ND<0 U (9/1/2006 a) ND<0 U (2/1/2006 a) (0- 0)/(7- 3)

ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(8 - 3)

ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(9 - 3)

ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3)

ND<0 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(5 - 4)

ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4)

ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4)

ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4)

ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4)

ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4)

ND<0 U (6/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(6 - 5)

ND<0 U (9/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(7 - 5)

ND<0 U (12/1/2006 a) ND<0 U (4/1/2006 a) (0 - 0)/(8 - 5)

ND<0 U (3/5/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(9 - 5)

ND<0 U (6/6/2007 a) ND<0 U (4/1/2006 a) (0 - 0)/(10 - 5)

ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6)

ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(8 - 6)

ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0- 0)/(9- 6)

ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(10 - 6)

ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<O U (6/6/2007 a) ND<O U (9/1/2006 a) (0 -0)/(10- 7) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) 0 Number of Q values = 45 Ordered 0 Values n Q 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0 42 0 43 0 44 0 45 0 Page 2

S Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 10 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 2250 B=0 C = 720 D=0 E = 90 F=0 a = 2250 b = 6480

. c = 180 Group Variance = 0 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C=0 M1 = (45 - 0)/2.0 = 22.5 M2 = (45 + 0)/2.0 + 1 = 23.5 Lower limit is 0 = 0(23)

Upper limit is 0 = Q(24) 0 < 0 < 0 indicating no trend in data.

Page 3

0 0 TEDE E

E 0

0 0

CO (0 0 r-- - N -N 0 0 0 0 0 0 0 N-0 N 0 0 0 0 0 0 N D Q N Q0 Q

Ni Ný - 0 Z- -N zC7 I Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-139 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90%.Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (3/5/2007 a) 0.153416 U (12/1/2006 a) (0 - 0.153416)/(2 - 1) -0.153416 ND<0 U (6/6/2007 a) 0.153416 U (12/1/2006 a) (0 - 0.153416)/(3 - 1) -0.0767079 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(3 - 2) 0 Number of 0 values = 3 Ordered Q Values n Q 1 -0.153416 2 -0.0767079 3 0 Sen's Estimator (Median Q) is -0.0767079 Tied Group Value Members 1 0 2 Time Period Observations 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A =18 B=0 C=0 D=0 E=2 F=0 a =66 b = 54 c =12 Group Variance = 2.66667 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 2.68603 M1 = (3 - 2.68603)/2.0 = 0.156983 M2 = (3 + 2.68603)/2.0 + 1 = 3.84302 Lower limit is 0 = Q(0)

Upper limit is 0 = 0(4) 0 < 0 < 0 indicating no trend in data.

Page 1

0 0 TEDE E

0 0

c-C0 0 C a0C, 0 CDNI0 0 0= 0 0 04 24 (N N (N ( 0 ZZ N- a (N

Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-140 Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) a.

ND<0 U (3/5/2007 a) 0.439373 U (12/1/2006 a) (0 - 0.439373)/(2 - 1) -0.439373 0.0157975 U (6/6/2007 a) 0.439373 U (12/1/2006 a) (0.0157975 - 0.439373)/(3 - 1) -0.211788 0.0157975 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0.0157975- 0)/(3- 2) 0.0157975 Number of Q values = 3 Ordered 0 Values n Q 1 -0.439373 2 -0.211788 3 0.0157975 Sen's Estimator (Median Q) is -0.211788 Time Period Observations 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A=0 B=0 C=0 D=0 E=0 F=0 a = 66 b = 54 c =12 Group Variance = 3.66667 For 90% confidence interval (two-tailed), Z at (1 -0.9)/2 = 1.64485 C = 3.14965 M1 = (3 - 3.14965)/2.0 = -0.0748269 M2 = (3 + 3.14965)/2.0 + 1 = 4.07483 Lower limit is 0 = Q(0)

Upper limit is 0 = Q(4) 0 < 0 < 0 indicating no trend in data.

Page 1

TEDE E

9D E1 76 Co co 1.10 0 Co r.-

co 0 0) C 0 r-.

o 0)

O 0

0 0 41 0>

O C,

0 O

Q C-, ,

~ !Z, C

0ý C1o

( 1 0

o Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-508D Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (1/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(2 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(4 - 1) 0 0.0133436 U (4/1/2006 a) ND<0 U (12/1/2005 a) (0.0133436 - 0)/(5 - 1) 0.00333589 ND<0 U (6/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(6 - 1) 0 ND<0 U (9/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(7 - 1) 0 ND<0 U (12/1/2006 a) ND<0 U (12/1/2005 a) (0 - 0)/(8 - 1) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2005 a) (0 - 0)/(9 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (12/1/2005 a) (0- 0)/(10 - 1) 0 ND<0 U (2/1/2006 a) ND<0 U (1/1/2006 a) (0- 0)/(3 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(4 - 2) 0 0.0133436 U (4/1/2006 a) ND<0 U (1/1/2006 a) (0.0133436 - 0)/(5- 2) 0.00444785 ND<0 U (6/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(6 - 2) 0 ND<0 U (9/1/2006 a) ND<0 U (1/1/2006 a) (0 - 0)/(7 - 2) 0 ND<0 U (12/1/2006 a) ND<0 U (1/1/2006 a) (0- 0)/(8 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(9 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2006 a) (0 - 0)/(10 - 2) 0 ND<0 U (3/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(4 - 3) 0 0.0133436 U (4/1/2006 a) ND<0 U (2/1/2006 a) (0.0133436 - 0)/(5 - 3) 0.00667178 ND<0 U (6/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(6 - 3) 0 ND<0 U (9/1/2006a) ND<0 U (2/1/2006 a) (0 - 0)/(7 - 3) 0 ND<0 U (12/1/2006 a) ND<0 U (2/1/2006 a) (0 - 0)/(8 - 3) 0 ND<0 U (3/5/2007 a) ND<0 U (2/1/2006 a) (0- 0)/(9- 3) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2006 a) (0 - 0)/(10 - 3) 0 0.0133436 U (4/1/2006 a) ND<0 U (3/1/2006 a) (0.0133436 - 0)/(5 - 4) 0.0133436 ND<0 U (6/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(6 - 4) 0 ND<0 U (9/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(7 - 4) 0 ND<0 U (12/1/2006 a) ND<0 U (3/1/2006 a) (0 - 0)/(8 - 4) 0 ND<0 U (3/5/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(9 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2006 a) (0 - 0)/(10 - 4) 0 ND<0 U (6/1/2006 a) 0.0133436 U (4/1/2006 a) (0 - 0.0133436)/(6 - 5) -0.0133436 ND<0 U (9/1/2006 a) 0.0133436 U (4/1/2006 a) (0 - 0.0133436)/(7 - 5) -0.00667178 ND<0 U (12/1/2006 a) 0.0133436 U (4/1/2006 a) (0 - 0.0133436)/(8 - 5) -0.00444785 ND<0 U (3/5/2007 a) 0.0133436 U (4/1/2006 a) (0 - 0.0133436)/(9 - 5) -0.00333589 ND<0 U (6/6/2007 a) 0.0133436 U (4/1/2006 a) (0 - 0.0133436)/(10 - 5) -0.00266871 ND<0 U (9/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(7 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (6/1/2006 a) (0 - 0)/(8 - 6) 0 ND<0 U (3/5/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(9 - 6) 0 ND<0 U (6/6/2007 a) ND<0 U (6/1/2006 a) (0 - 0)/(10 - 6) 0 ND<0 U (12/1/2006 a) ND<0 U (9/1/2006 a) (0 - 0)/(8 - 7) 0 ND<0 U (3/5/2007 a) ND<0 U (9/1/2006 a) (0 - 0)/(9 - 7) 0 Page 1

ND<O U (6/6/2007 a) ND<O U (9/1/2006 a) (0- 0)/(10- 7) 0 ND<0 U (3/5/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(9 - 8) 0 ND<O U (6/6/2007 a) ND<0 U (12/1/2006 a) (0 - 0)/(10 - 8) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(10 - 9) f 0 Number of Q values = 45 Ordered Q Values n Q 1 -0.0133436 2 -0.00667178 3 -0.00444785 4 -0.00333589 5 -0.00266871 6 0 7 0 8 0 9 0 10 0 11 0 12 0 13 0 14 0 15 0

. 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0 24 0 25 0 26 0 27 0 28 0 29 0 30 0 31 0 32 0 33 0 34 0 35 0 36 0 37 0 38 0 39 0 40 0 41 0 42 0.00333589 43 0.00444785 44 0.00667178 45 0.0133436 Page 2

. Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 9 Time Period Observations 12/1/2005 1 1/1/2006 1 2/1/2006 1 3/1/2006 1 4/1/2006 1 6/1/2006 1 9/1/2006 1 12/1/2006 1 3/5/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 1656 B=0 C = 504 D=0 E = 72 F=0 a = 2250 b = 6480

. c = 180 Group Variance = 33 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 9.44896 M1 = (45 - 9.44896)/2.0 = 17.7755 M2 = (45 + 9.44896)/2.0 + 1 = 28.2245 Lower limit is 0 = Q(18)

Upper limit is 0 = Q(28) 0 < 0 < 0 indicating no trend in data.

Page 3

TEDE Time-Series Graph of MW-508S 0.08 0.08 /

0.07 0.06 E 0.05 0

S 0.04 r

0 0.03 0.02 0.01o ojC0.03. ( (

0o 0 Sample0 Dt Sample Date Page 1

Sen's Slope Analysis Parameter: TEDE Location: MW-508S Original Data (Not Transformed)

Non-Detects Replaced with Detection Limit 90% Confidence Level xj Xk (Xj - Xk)/(j-k) Q ND<0 U (2/1/2007 a) ND<0 U (1/1/2007 a) (0- 0)/(2 - 1) 0 ND<0 U (3/1/2007 a) ND<0 U (1/1/2007 a) (0 - 0)/(3 - 1) 0 ND<0 U (3/5/2007 a) ND<0 U (1/1/2007 a) (0- 0)/(4 - 1) 0 0.0870399 U (4/1/2007 a) ND<0 U (1/1/2007 a) (0.0870399 - 0)/(5 - 1) 0.02176 ND<0 U (6/1/2007 a) ND<0 U (1/1/2007 a) (0 - 0)/(6 - 1) 0 ND<0 U (6/6/2007 a) ND<0 U (1/1/2007 a) (0 - 0)/(7 - 1) 0 ND<0 U (3/1/2007 a) ND<0 U (2/1/2007 a) (0 - 0)/(3 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (2/1/2007 a) (0 - 0)/(4 - 2) 0 0.0870399 U (4/1/2007 a): ND<0 U (2/1/2007 a) (0.0870399 - 0)/(5 - 2) 0.0290133 ND<0 U (6/1/2007 a) ND<0 U (2/1/2007 a) (0 - 0)/(6 - 2) 0 ND<0 U (6/6/2007 a) ND<0 U (2/1/2007 a) (0 - 0)/(7 - 2) 0 ND<0 U (3/5/2007 a) ND<0 U (3/1/2007 a) (0 - 0)/(4 - 3) 0 0.0870399 U (4/1/2007 a) ND<0 U (3/1/2007 a) (0.0870399 - 0)/(5 - 3) 0.0435199 ND<0 U (6/1/2007 a) ND<0 U (3/1/2007 a) (0 - 0)/(6 - 3) 0 ND<0 U (6/6/2007 a) ND<0 U (3/1/2007 a) (0 - 0)/(7 - 3) 0 0.0870399 U (4/1/2007 a) ND<0 U (3/5/2007 a) (0.0870399 - 0)/(5 - 4) 0.0870399 ND<0 U (6/1/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(6 - 4) 0 ND<0 U (6/6/2007 a) ND<0 U (3/5/2007 a) (0 - 0)/(7 - 4) 0 0.0870399 U (4/1/2007 a) (0 - 0.0870399)/(6 - 5) -0.0870399 ND<0 U (6/1/2007 a)

ND<0 U (6/6/2007 a) 0.0870399 U (4/1/2007 a) (0 - 0.0870399)/(7 - 5) -0.0435199 ND<0 U (6/6/2007 a) ND<0 U (6/1/2007 a) (0 - 0)/(7 - 6) 0 Number of 0 values = 21 Ordered 0 Values n a 1 -0.0870399 2 -0.0435199 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 0 12 0 O 13 0 14 0 Page 1

15 0 W 16 0 17 0 18 0.02176 19 0.0290133 20 0.0435199 21 0.0870399 Sen's Estimator (Median Q) is 0 Tied Group Value Members 1 0 6 Time Period Observations 1/1/2007 1 2/1/2007 1 3/1/2007 1 3/5/2007 1 4/1/2007 1 6/1/2007 1 6/6/2007 1 There are 0 time periods with multiple data A = 510 B=0 C = 120

. DO0 EF--0

= 30 a - 798 b = 1890 c = 84 Group Variance = 16 For 90% confidence interval (two-tailed), Z at (1-0.9)/2 = 1.64485 C = 6.57941 M1 = (21 - 6.57941)/2.0 = 7.21029 M2 = (21 + 6.57941)/2.0 + 1 = 14.7897 Lower limit is 0 = Q(7)

Upper limit is 0 = Q(15) 0 < 0 < 0 indicating no trend in data.

Page 2

CY-07-107, License Termination Plan Groundwater Compliance Summary Report, July 2007, Rev. 1, Volume 2 of 2

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