ML043550400
| ML043550400 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 11/30/2004 |
| From: | CH2M Hill |
| To: | Connecticut Yankee Atomic Power Co, NRC/FSME |
| References | |
| FOIA/PA-2005-0203 | |
| Download: ML043550400 (197) | |
Text
Groundwater at MWIO9D 2nd Quarter 20 15 I-U-
U.10 0
a)
W-, -
Ib.
a) co5 AI 0
0
-5 .1 CD 0 0
° 0 0) 0 0 a) 0#
£2 0O Lo C) CD CD To Time
)
Groundwater at MWI09D 2nd Quarter Correspond with River highs 9 . /
/ ,Detailed Tidal Changes Area (1) Tia hne 7
Transducer\\
5 Downioaa\\I I-i Transducer download River high /
3 CD 2nd Quarter 1 2004 Sampling Event
-1 Transducer Modification
-3
-5 . . . . , . . . . . . , . -.-
'IT o0 'T 0 0 0 0 0) 0) 03 IT 0D 0)
Q~ 'To C\J C\J Mv u) U) U) CD Z6 Time
)
Detailed Area #1 of Groundwater at MWI09D 2nd Quarter 7.7 Barotroll Error 7.5 2
en I- 7.3 U.
Transducer Download
/E ELI 0 .
I-J M 6.9 C,
Transducer Modification _
6.7 6.5 . I I I u) LO U) Lo In LO LO UL U) dO to 61i c6i &i IN CN to 9 04 0 'T LO 0" a
a) U)
UQ U) Z?5 U)
Time
) )
Groundwater at MW1 09D 2nd Quarter 9
8.5 8
7.5 I-0 7
E 0
6.5 - MW-109D Li. > - River
-J 0 I-B.6.
6 0 10 C, 5.5 4.5 4
C Go s0 o o o o0 0O 0o 0 0) 0)
Z;) Sz?
Z 4N Q4ime BLO Lf) C Time 0 ciS5
MWI09D Groundwater and Daily Rainfall Totals 2nd Quarter 20 4 3.5 15 4- I 3
'I, I-to
.- 2.5 c 10 il 0
S (U C - GW RainfallE 2 j
'r- l GW Elevationl I-0 5
. 1.5 I
0
-1 0 -II -IF-
- 0.5
- n. lI I II I IIJ, I!
I!
-5 . . . . . n .. F I [I.
n I
li
. . . I.. . I . . 11 0
'~IT 'IT ,I.
3 0 Qa '- 0 a "IQ 0 0 0 0
- 0) Nr c'S CD Cs.J 0 £0
MW109D Groundwater Elevation and Temperature 2nd Quarter 20 An
- 59.5 15 I + I 59 cn, - 58.5 I-M 58
- _C L [ - GWEIev 57.5 IL / -- -
2 - Temperature 0.
20 57 0.
I E I--
- 56.5 0 56
- 55.5
-5 55 or 0 0 0T 0R
'I 0 0 0 0 0 C) 4CN ,QJ CU) CD CO) (T Time 0
Groundwater at MW-11OD 2nd Quarter 20 15 un IL.
- 10 0
(U o
0
- 0
-5 ,a . 'a . . . , . . . 'a., . n'IT'a 0 0C 0 0)
Q~ -
LO 0 t Time
) ) )
Groundwater at MW-IIOD 2nd Quarter 7Correspond to River Highs c 9 -k4^
U)
I-
.0 c3 L.
- 0) Barotroll Error Download 5 ... .. ,,,..,...........
0 Transducer Modification 0))
-5
'IT 0t 0 0 0
(6 ai CD C9~ CD Time
)
Detailed Area Groundwater at MW-h1OD 2nd Quarter 4.8 -
4.6 - - ---
4.4 -_-
4.2 -...
> 4 - _ - _ _ -_ _ _ _
LU 3.8 _ _ _ _ _ _ _ _ _ _
0 3.6 3.4 3 .2 . . . . . . . . . . . . . . . . . . . .
0 0 0 0 0 o 0 0 0 92 0 0 0 o 6 6 6 Qx -Ir Z?)O o o 0 0 0 0 o 0 CD 0 f) I) : ime LOU) -.
U)
-z Lo Time
) ) )
MW-1 OD Groundwater Elevation and Daily Rainfall Totals 2nd Quarter 20 4 3.5 15 3
(0 I--
2.5 10 c 0 mm Rainfall iol - GW Elevation os 0 1.5 I
-5 0.5 0
0 0 0 0 0 C 0 0° a 0 0 TiNIm0a as) a)
Time 0
MW-11 OD Groundwater Elevation and Temperature 2nd Quarter 20 60 59.5 15 59 Co 58.5 575tel GW Elev fi 41 TemperatureI 557 vy56.5 0 III li. I,,Z Ax]- I-56 55.5
-5 55 o CD 56.
Time cI55
Groundwater at MW-508D 2nd Quarter 20 15_
U, 10 0
-5
'IT 'C.
o o 0 0 0 0 0 CD 0)
-., . ... . U) (D (D Time
.) ) )
Groundwater at MW-508D 2nd Quarter 7-7 - A _Correspond to Ri
-U, E-
,0 Setup for
> Transducer Download Transducer 02 Modification UJ1 shfti i:
0 I).
Transducer Modification /
-5 o o 0 0 o o0 00
) co
-O Time
) ) )
Groundwater at MW-508D and the River 2nd Quarter 8 6 7.5 7 / jr, 5
-j E 6.5 4 I-U-
_ 6 A
.2 3 °
,W5.5 IV A A 'U -MW-508D l 0
9u - River 5 A AA 2 >
a:
0 0 4.5 Vl M1 4
3.5 -V VV 0 3 -1 CD 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 6 0 6 0 6 65
'1 'To 0
0 Nr 0 .M 0 0 0 ,It. 0 0a 1l- 0)
.~2 0
.4J Time
MW-508D Groundwater Elevation and Daily Rainfall Totals 2nd Quarter 20 4 3.5 15 3
0, LL I-2.5 cc 10
.0 -
z0 l rainfall I-2: l-GW Elevation 0
5 1.5 0
1 0
0.5
-5 0 o 0 0 0 0o 0o o 0
co) 4 V :1 LO S1 C5 5(Dm Time 0 0
MW-508D Groundwater Elevation and Temperature 2nd Quarter 20 -
- 60 59 15 - 58 J 57 I-U- 4._
0 c 10 56 e o10 55 u-f - GW Elev 42
-U , -Temperature I.-
I.1 (U 5 - P O 54 4) 0.
E 0
0 53 0 52 51
-5 I I . . . I . . . I I I 50 0 o0 0 0 0 0)' 0
- ('.1 0
- °D °Time Time 0 0 c I29
Groundwater Elevation at MW-I 01 D Second Quarter 15 C,o C,
-5
-15 .. . .
-00 0 C Q _ Q - Q Q)
CV) v LO )as (D Time
) ) )
Groundwater Elevation at MW-101D Second Quarter Slight response to
/Mat Sump 10 _
Same response is s MW-105D; correspo packer testing in MW 0 on/off ......
Aquifer recharge Transducer due to significant download E rainfall c -10 I
.2 Detailed Area # 1 Slight response to Mat Sump Detailed Ares Packer Test pumping in Zo 152 to 157 Transducer Modification
-40 I. . . . . . . . . . . . .
0D 0 0 o0 O 0 0 cN
) (\NJ
_ _ LO u7 (0 to Time
) ) )
Detailed Area #2 of Groundwater Elevation at MW-1011D Second Quarter
-4.5
-5
-5.5 0)
E 0
co (U
O
-6 /
l-
-6.5 Response to Packer Test in MW-
-7 121A: Zone 152 to 157. Same _ _ ___ _.I- -
response is seen in MW-105D
-7.5
,.1. co co r-Cu 0 0 0 0 . j.
'T ID co IT-QD ID 'IT CO CD to Time
) ) )
Detailed Area #1 Groundwater Elevation at MW-1 01D and the Mat Sump Second Quarter
-21 5
-2.1 0
-2.3> / - 2 CC 09 00 o o 0 0 0 0 0 o Z0 0 0 0 0
_N N0(N0 _ Time
MW-b01D Groundwater Elevation and Daily Rainfall Totals 2nd Quarter 15 4 3.5 3
5 0 2.5 c
Rainfall
.so (U - GW Elevation l a) 1.5
-5 1
0.5
-15 0 0 o o 0 0 602 Q o o 0 0 0 0 0) a) 04 COw CD Time 0 C\Go
MW-101 D Groundwater Elevation and Temperature 2nd Quarter 60 59 15-58 57 56 E 5 4l56 o U._ -GW Elevation 0.1~ 55~
o 'o< v~ ~54 4E
_ dE
-5 53 52 51
-000CD00 0) en - v Ij e - cOTi Time I C)Q'
Groundwater Elevation MW-I102D 20-15-lo-E)
-5
-~
- -- -CD U ) CD DCD4 Time
) ) )
Groundwater Elevation MW-102D and the Mat Sump 2nd Quarter 8.45 10 8.35 '1%
5
,early 8.25 0
8.15
-.-N E
C 8.05 0
0.
7.95 10 -10 7.85
-15 7.75
-20 P k I) 7.65
+7t r ( Vf 7.55 -25 Z?)
Time C\2-
Groundwater Elevation MW-102D 2nd Quarter 13 8
Sump Mat li 3
C1 Aquifer Detailed Area (1) 0
-2 Recharge due to significant Mat Sump on/off 0 rainfall uLJ -7
-12 Transducer 2nd Quarter 2004 _
Modification Sampling event
-17
-22 . . . . . . . . . . . . . . . . . . I . I I . I . . . . . . I
'To 0D 0D 0 0 'To "r 0 0 CD 0 a 0 05 0 a3 D) co~ Q~ a) U) U) CD, co Time
) ) )
Groundwater Elevation MW-102D 2nd Quarter 9.6 9.4 9.2 9
4-to 8.8
- MW-102D 0
-20 per. Mov. Avg. (MW-102D) l 0
8.6 8.4 8.2 8
C) 0 0 0 0 0 0 0 o o o 0 0 0 6 6 6 6 6 6 Too 0 c\J LO 04
- 03) 0 Q' U) Uf) U) 5)U)U LO Time C1GC3
MW-102D Groundwater Elevation and Daily Rainfall Totals 2nd Quarter 20 4 7-l 3.5 15 3
E10 2.5 0 o U, '-
4I C
._M l Rainfall 2 - GW Elevation l a)
- 1.5
-1 0
~'-F
- 0.5 ri 'D;
-5 II 3 i', "I l 1.
U 0 I . 0 0 0 0 0 'To 0 0
, _ 0 0 0 0 0 0 aN 0 0 a' co
- 0) a) 11 (0 CDi u) CD Time 0
MW-102D Groundwater Elevation and Temperature 2nd Quarter 20 60 t 59 l
_ --57 I - -Jo _
.eC vl 0
- GW Elevation 0 _L55 w - Temperature 0
a-5IW I -" lg54 0 0 I.-
53 0 - 52 51
-b . . , ,, ,. . . .,, , , . ,.. . . . . . . . . . . . . I . . . OU A IT .VJ 0 0 0
0 0
'To 0t 0) 0 IT a 0 C,) 0, 0 0)
U) (D CD CO) U) CD Time 0 C 57
Groundwater Elevation at MW-I 03D 2nd Quarter 20 15 -
co C
0) 3: 5-0
-5 o o c
? co Q
) co Time
) ) )
Groundwater Elevation at MW-103D 2nd Quarter 15 Mat Sump shut off and back on between 4/18/04 at 4:05 and 4/20/04 at 6:15 10 -___
t/ ~on/off Xt 5 ....
E
.o 0
Possible slow aquifer recharge from significant rainfall Detailed Area #1 11 (U
LU -5
-10 Transducer Modification
-15
-20 0 0 C 0 C) a) C)
- N ) - o) - ( c)o co (N
Time
) ) )
Detailed Area #1 of Groundwater Elevation at MW-103D 2nd Quarter 7.6 10
/e41 \ 5 7.4 0 4- I- / X -5 a.
E MW-103D
-Mat Sump
.60 2
ui 6.8 6.6 -15 I ~/ X 4 6.4 vF I PHU8/~0A1ffi1j1/~9
-20 6.2
. .gI 1. - I . . . - . . . . . . -25 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 (N ( 0 (N e4 O
0 ON 0I 0 0 04 92 0 Co U) 0 0 U) 'I N- 'IT i?5 a 0 U)
(N4 LO U)
U1 CO U)
Z?5 (N U) U)
U)
Time
Detailed Area #2 Groundwater Elevation at MW-103D 2nd Quarter 0*
-E -
-0
-15
-20 . . . . . . . . .
O CD D 0 o CO CD 0 O N 0 O - ) 0 o to c 0 0 c 0
(NI (N (NI (NI (D NN (N CD CD co cD oD Time
) ) )
MW-103D Groundwater Elevation and Daily Rainfall Totals 2nd Quarter 20 4 3.5 15 3
2.5 E C c
E10 0
l Rainfall
- GW Elevation l R 5 1.5 1
0 0.5
-5 0
'I QV 00 0 0 0 0 Tm e C.
Time
MW-103D Groundwater Elevation and Temperature 2nd Quarter 20 90 85 15 80 75 c E 10o C E
0
.1 LIL - GW Elevation 0 70 i, M - Temperature l w
C, 65 E 0
I-60 0
55
-5 50 c I 0 0 a0 3 Tim e ° a Time
Groundwater Elevation at MW-I 05D 2nd Quarter 20 15 co E0 0
5- __.__ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _
-5 1 . . ._ . -
00 0 0C 0 0s CD C
CO LO U) L Time
) ) )
Groundwater Elevation at MW-1 05D 2nd Quarter 13 -
11 7
07 D~t / ............ . .-
'A E Response to DW-1, 2 _-
a 5 I & 3 on/off Aquifer Recharge Detailed Area (1)
>3 due to Significant __
W Rainfall Transducer Downloai
-5
- 0 0 O 0 C a 0) a)
C co - Q TLi Lm I CD Time
) ) )
Detailed Area #1 of Groundwater Elevation at MW-105D 2nd Quarter 8.9 8.7 8.5 E
8 Packer Testing in l o 8.3-2A;
> (Deflation) Zone u 8.1183 to 188 3 8.1 7.9 7.7 -
7.5 I . . . . . . .
o0 0 CD0 0~ o 0 0~
o o o 00 0, 0 0 0 0 i\ 6 _
O LO 0
)tir 0) 0 CD r-.
If) U)
Lb U) U)
Time
) ) )
Detailed Area #2 of Groundwater Elevation at MW-105D 2nd Quarter 6.5 6
5.5 E
c 0
5 C)
C.
4.5 4 4-3.5 I
C) C) 0 0 0 CD 0 0 0 0
'T 0 6 6
'4 0
CD. 0 'i.
03 CD CD ;5 Time
) ) )
Detailed Area #3 Groundwater Elevation at MW-105D 2nd Quarter 6.45-6 .3 5 -_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
6.25-Packer testing of zone 26.05-5 .65 -_ _ _ _ _ _ _ _ _ _ _ _ _
5.55 -_ _ _ _ _ - _ _ _
o co04c (N co
-5 r:
-0 Ni r i o o "1, ,CD '1 0 iz D 0 CD CD co iD co to co co co Time
) ) )
Groundwater Elevation at MW-105D 2nd Quarter 20 4
-3.5 15 3
0 2.5 c 10 4-M 2 = mi Rainfali 0 ._- J- GW Elevation 3: 5 1.5 1
0 0.5
-5 0 0 0 0 0 0 0R 0 0 0 0Q 0 0Q , 0) 0)
CO)
Time
MW-105D Groundwater Elevation and Temperature 2nd Quarter 20 60 59.5 15 "IF59 IT -58.5 E 15 o GW Elevation 57.5 Temperature w~Eu 56.5 0 56 55.5 It V V V IT sV V e 0 O _
0
_ _ V2 O 0 6 O 0 0 0 0 0 0o0 ('4 0 0 0 0 0)
(Q)(Tm -e Time
Groundwater Elevation at MW-106D 2nd Quarter 20 -
15 -
C 0 lo f
'U 0
-5 o o 0 0 0 0 D Q Time Co iD O Time
) ) )
Groundwater Elevation at MW-106D 2nd Quarter 11 f > Packer Test in MW-121A 9 . g D ~ nion-
/ /2nd Quarter 2004 Mat' Sump Sampling Event 7
. /hutstiff -5nd /
turned back on DW-1, 2 & 3 on/off 0
5 E
a Aquifer Recharge 3 rdue aosignificant Mat Sump shut off and turned 1 back on tD Transducer Modification
-1
.3
-5 . . . I. .. .I . . . . . . . . . . . . . . II . . . .
0 'To 04 'To 0 0 0
.Qj CD 0
0 N~ Ov 2 0 0) a) 0) co cv) Co L) U) LO CD Time
) ) )
MW-106D Groundwater Elevation and Daily Rainfall Totals 2nd Quarter 20 4 3.5 15 3
2.5 c 10 0 -S lm Rainfall a - GW Elevation
- 3. 5
- 0) 1.5 1
0 0.5
-5 0 ao o o 0 o a 0 a 0 0 0 0 0 0) IQT c.,4 V~ in0O - (
Time 0
MW-106D Groundwater Elevation and Temperature 2nd Quarter 13 65 11 64 9 63 62 7
0 61 2 5
0 a..
0 GW Elevation 60 2 2 - Temperature w1 3 I-4-
59 ° 0
1 58
-i 57
-3 56
-5 55 Ir o
0 e 0 0 0 0 0 0 0 0 0 0Q 0 0 00) i~3 I- ;B -.- 0 Time C7L2
Groundwater at MW122D 2nd Quarter 20 15 U.
C- 10
.2 LI) 0
-5 o o o 0 0 0 o 0 0 a
<, -D - (N U) CD CD Time
) ) )
Groundwater at MW122D 2nd Quarter
/ I- orrespond tc 7-5 / 9l \ DW-1, 2&3 Xn Detailed Area (1)
Mat Sump Off/On 3
.2 Transducer XU Download L)
C) 0 o -1'-
Transducer Modification
-3
-5 . . . . . .
0 0) o- ) 0)i Q
CI) CD (N
- c Time
) ) )
Detailed Area (1) of Groundwater at MWI22D 2nd Quarter 10 9
I-LL 0
0
-> 8 .- --
7-00 Time
)) ) )
Detailed Area (2) of Groundwater at MW122D 2nd Quarter 3.50 3.40 X3.30-_
E-3.20 -
0
> 3.10
- 3.00 2.70 2.90 I., ., . ____I,.._
o o N (D 0N CD (0 o N 7t - CO N s-0) o (N 0- C) (N O°°°- O o 0 0 0 co to co 6 .. .. ., _
_0 0 _D (_ ( -(
(0 (0 (0 (D (0 Time
) ) )
Groundwater at MWI22D and the Mat Sump 2nd Quarter 5.60 5.55 1 AN 5.50 4 /1 I E 5.45- / I 0 U.
C 5.40
.2
'V.
f 141111-\ -5 51 a 5.35 - - MW-122D 0
-10 l Mat Sump r'R7/
.l.I (U 5.30-25.25- I -15 5.20-5.15 -j" AAR1AA' 17 Wv AAANI/
1 j\^ 21A-
-20 1
1 t
^ ,........
7flyv I -l-M
!YVUI I UII 1*-1--iF-f 5.10- -25 0 0 0 0 a 0 0 0 0 0 0 0 0 0 0 6 6N (N 0 (N 0
.6j 0 CN Q 0
LO 0 0 N- (N 0) 0 0 (N
LO)
Lo UR N
LTi 0)
Groundwater at MW122D 2nd Quarter 7
7 6
5 5
a- 4 U-3 c 3 .>
0
.2ar
-MW-122D l (iL 1 - River 0
a.
0 0
c
-1 0
0
-1
-3
-2
-5 -3 ttt ' 'ItO T
0 0 0 0 0 0 0 0) 0)0 c'J c-r W- i"'J5 C) a) co Time 0 0 cl -L
MWI22D Groundwater Elevation and Daily Rainfall Totals 2nd Quarter 20 4 3.5 15 3
2 I-U. 1 2.5 0
l Rainfall 4.4
- GW Elevation C0 1.5 1 5 0
0.5
-5 0 Q ,0 Q 0 0 0 0 0
-0 0 0 0 0 0 a )a e eCeO e C Time CV1IG
MWI22D Groundwater Elevation and Temperature 2nd Quarter 20 55 54.5 15 - 54 1
EL 10 53.5 53 CU ~~~52.5 - G E e ii \ -Temperature 5 52a o c1. LOI.-Oc I . . . . . . . . . , . . .. , ,. . . . . . . . 50 ffi ooo M Q O
QeQ Q _ Z Q Time o 0
- 00 C0
Groundwater Elevation at the Mat Sump 3rd Quarter 0
-5 C0 w
C) ot
-l o C>
04c
-20m
Groundwater Elevation at the Mat Sump 3rd Quarter 0
Mat Sump Tumed-on at 11:55 Mat Sump Shut-off a 5:55 C) 0
-20
-25 (0 1- U,-
Time
) ) 3
Mat Sump Water Elevation and Daily Rainfall Totals 3rd Quarter 0 3.5 3
-5
-i 2.5 c -10 0 2 a
C
_ Rainfall a
'U O - GW Elev
'O
-2 1.5 0
I-2 I
4-2 0.5 0
o- o 0 M 0) 1- c.._ fl0 co (0
C 0 0 0 0 Time 0 0 C\1~-I
Mat Sump Groundwater Elevation and Temperature 3rd Quarter 0 58 57.5
-5 CA 57 c
I-2
!!:20-15 56.5 l GW Elev
-U 0 5. - Temperature
.0; -15 0 E
02 0 56
-20 55.5
-25 55 Q o o 0 _ 2 C) o o C 0) (0 CO Time 0 0 (~J
Goundwater Elevation at MW-IOOS 3rd Quarter 20 -
15 J-5 . .
cnsI TU C
0 0
00 Time
Goundwater Elevation at MW-IOOS 3rd Quarter 17 CaD was Ieft off after 2nd Qtr. Sampling Event allowing rainfall
[1 ttoIrectly affect water level in well 16 I - I 11-11 -- ---
15
-J ao1 I-U-
r 14 N
0 e
1U i;.213 i
O 0
0 "N-12 VII91-11 10 I 0 I0 C) Co a 0 0) 0 ao 0
co) r- r-Time 3 3 )
MW-100S Goundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15
- 1 2.5 U)
I.-
- 0 2
C
- l Rainfall 20'U S -GW Elev I Ri 1.5 1c
'U C3 I
0 0.5
-5 0 0
0 0 0 2 co -z f0 c Time
MW-IOOS Groundwater Elevation and Temperature 3rd Quarter 20 100 90 15 80 U. 10 c
.C
.2 0 0
Lu (U 5 0
C 60 I-0 50 0
-5 40
,It.
0 C0 0 60 0 0 5 0 a)
CO a)
(B Time Time CUtQ
Groundwater Elevation at MW-104 3rd Quarter 20 15 -
-J C,
>,10 I-0
-U CO a Time
) 0 0) )0
Groundwater Elevation at MW-104 3rd Quarter 15 -
Possible Response to Pump installation in DW-4 Aquifer Recharge due to Rainfall Events Drilling and Installation of DW-4 IL C
10
'U U)))
5 0 0 0 Time
MW-1 04 Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 - 3.5 3
15 -_l -
2.5 lo
£02
> mm Rainfall I- Ill J1.5 aGW Elev 35-10 414 Xj 00 .5
-1.
00 CO 0 0 0
0 0 0
0.5 0
Time
MW-I 04 Groundwater Elevation and Temperature 3rd Quarter 20 59.5 59 15 58.5 2
E0 0 (I)
I- 58 2 co
.0 10 L l GW Elev-10 i -Temperature (U
0 57.5i (D (U E 0
57 0
56.5
-5 56 Go o 0 0o 0 a
0 Q0 Q aO Q 0)
ID f- c..J c-)
Time
Groundwater Elevation at MW-107S 3rd Quarter 4-3.8-3.6 3.4-
' 3.2,V -i
- 2. 3.
'U 2.8 C
0
.2 2- 4_
2.6-A 2.4 -AAM A-A aTim 2.2-2 Time
Groundwater Elevation at MW-107S 3rd Quarter 4
3.8 I A Recharge Events, Tidal Changes and 3r6es*p=nse to rie highs and lows 3.6-
-3.4-3.3.2
.3-28 2-2.6-A 2.4-2.2 2 -
o o 0 0 0Ti Time
MW-107S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5,
-3 15 I 11 I
- 2.5
- r I
co I-0 lo -2
-W Rainfalll 3 50 l GW Elev l 4-U
- 1.5
-1 0
0.5 I
-5 .4. 0
,I 0'T 0 0 0 0 12
.4. 0 0)
C. Co Co Ni< C.
No Time 0
MW-107S Groundwater Elevation and Temperature 3rd Quarter 20 59 58.5 15 58 en Z
E 10 C C 57.5 e C
10 4-7i -GW Elev LU
-Temperature l 57 I!
- 5 C.
C E 0
CD 56.5 0
56
-5 55.5 nt 0 o O 0 Q 0 Co Time 0 0 CI76+
Groundwater Elevation at MW108S 3rd Quarter 20 C
0 0 15 " l I-0-
10.
(U CD 0
Time
Groundwater Elevation at MW108S 3rd Quarter 5,
Waves in graph are due to tidal cycles U)
IL 0
0 LCD 0)C CDr(U-C Tim
Groundwater Elevation at MWI08S and River Levels 3rd Quarter 4
3 i
lilA8
- 2 _-
co Ij-U-
- MW-i 081 0
- River LU 0o-1Il ilil lE il I1Z I 1111111,l11il 11H11 I
-1 0 0 0 0 0 0 o Ti o 0 Co) I-N N C)
Time 0
MW108S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 2
LL 0 2
- r r-Rainfall UI-
- GW Elev S
1.5 a 0
L.
1 0
0.5
-5 0
,It 't 'IT It 0
25 o o 0 0 0 22 o 0 0 0) 0) 0 i. r- 0o co 0 0 0 0 0 Time 0 CIG
MWI08S Groundwater Elevation and Temperature 3rd Quarter 20 57 56 15 55
- r I- 0
!! 10 c c
0 54 e sA-(U -GW Elev 0
- Temperaturel 53 IC a1;5 0
C E
0 0
52 0
51
-5 50
't O o o 0 0 0 0 0 05 0)
CO
- °-l °. e 0)
Time
Groundwater Elevation at MW-109S 3rd Quarter 20 15
&0 E
I-IL 10 (U
0 I-CD C cr) CO).
Time
Groundwater Elevation at MW-109S 3rd Quarter 3 -
2.9 -
2.8 Tidal Cycles E 2.7 E
I-c 2.6
.* 2.5 L.
2.4 1:
0
'-2.3-
.2 2.2 2.1 20 coO X co Time
) 3
Groundwater Elevation at MW-109S 3rd Quarter 3 4 2.9 3
2.8 c 2.7 2 E
I-2 4-i; 2.6 0 1 E if-III alI if 'i: - MW-109S z 2.5 -I
-River Level l
- 2. 0:
0 0
1 ... ...
2.2
-2 2.1 2 -3
'Tl "1-0 0 0 0 'To 0 0 05 03 0 a)
Z0)
Z2C') I-I- I*-
Time 0 c 1%
MW-109S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5
-J t.10 C
0 2 c
2 lo *6- l Rainfall Ml - GW Elev 1.5 4U 1
r-0.5
'IT 0
IT 'T .
o o 0 0 0 0 0)0 0)0 Co) N N N a)
Time
MW-109S Groundwater Elevation and Temperature 3rd Quarter 20 57 56.8 15 2 56.6 co s45 I- F M
I.10 56.4 -. GW Elev
- 5. Temperature 0
1.0 I-E 0
56.2 56
-5 55.8 0
o o 0 0 0 0 0 as a, CD)
-- ram rs- ;c Time
Groundwater Elevation at MWIIOS 3rd Quarter 20 15-
-l I-C)
U-
'U
-. 1 o 0 0 0 0) 0 CD P- co Time 3 3 a
Groundwater Elevation at MWII OS 3rd Quarter 3-2.8 Recharge Events and Increase in River Levels 2.6
-J 2.4-Co
-0 2 -
1.8 T 1.4 1.2 -V o o 0f 0 0) 0 CO) CV) co Time N) 3
Groundwater Elevation at MWI1 OS and River Levels 3rd Quarter 3 6 5
2.5 4
- 2 (a 2 0 3 E
- MW-110S 0 1.5 c
I-W 2 -I4 - River Levell I4-1 0
1 0.5 0
0 -1 0
0 o0 cl f Q a Tim e Time
MWIIOS Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 0
2 U-2 ^:
0 lo w
3 10 S a Rainfall
.5 I- GW Elev 1.5 12 C,
C 0
0.5
-5 0 C 0 0 0 0 o Co -a co
-- N- Tm P Time 0 0
MWI 105 Groundwater Elevation and Temperature 3rd Quarter 20 57 15 56.5
-J 56 I- 0 0
a-
- 0. - GW Eiev 55.5 0
- Temperature 3-lo- 5 00 c 55 0
54.5
-5 54 0 0 0 0 0 C
ib zz rTime Time 0
Groundwater Elevation at MWI13S 3rd Quarter 4
3.5 u) 3 Cl
> 2.5 -
'U C
CD 1.5 0
Q M CD, al C)
CD 0-Time
) 3
Groundwater Elevation at MW113S 3rd Quarter 4
Recharge Events and River Levels 3.5 Tidal Cycles
-3
'U i2.5 -
CC o o i 0 0 0 Time
Groundwater Elevation at MWI 13S 3rd Quarter 4 3 2.5 3.5 2
2 3 I--
IL. 1.5 0
c E
0
'U
- 2.5 - MW-113 1 0 I.-
0 - River Levels S.U 0
3 10 c
-U.Z5
= 2
.0 0
1.5
-0.5 1 -1
'I Q oo 0 0 0
- 0) 0 0)&S CD Time Time
MWI 13S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 15
- r M
I-o U-c
-ml Rainfalll 5
-a - GW Elev l 1.5 E i5 0 P 0
-5 9
a o 0 0 0 0 Q
Co rs 1
Nime a ad Time 0 0
MW 113S Groundwater Elevation and Temperature 3rd Quarter 20 56.5 56 15 55.5 a-55 CO
£. 10 0
c X. 2!
54.5 -
IL
.0 -GW Elev I-4-
t5.
Y-M - Temperature]
.2 54 ff 2
0 a1 ID
-53.5 0
53 52.5
-5
'I 52 0 0 60 o o 0 0 0 0 T) m (B0 N N Time
Groundwater Elevation at MW-114S 3rd Quarter 20-15 0-J
. 10 LU c-
'U C
t'U 0
04 Water level has dropped below transducer, therefore an accurate groundwater elevation could not be measured
_5
) ),
C o O Time
MW-1 14S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 2
lo co Iz ^
_gg RainfallI h-
. - GW Elev 1.5 1 4 5 0.
4' 1
0 0.5
-5 0 0 0 a0 0) as CDI. t-I.- O ;-
Time
MW-1 14S Groundwater Elevation and Temperature 3rd Quarter 20 67 66 15 65 10 64 i, i0 0 'I
-GW Elev co 63 I 0 - Temperature a6 0
0.
CD 62E.I-61 0
60
-5 59 0 o o 0 0 0 o o 0 0)i a CD)
- -. t- 0im Time 0 Uy~ 9
Groundwater Elevation at MW-122S 3rd Quarter 20 15 -
10 I-Hi "S 5 -
8 1 CC Z?'qc co0z Tim
-5 C) )
Groundwater Elevation at MW-122S 3rd Quarter 5.
4.5 4J aL 4Detailed Area of C Tidal Cycles 0
3 .5 -.......
6 0 O.5 J J Time
Groundwater Elevation at MW- 122S and River Levels 3rd Quarter 4
_ 5 3.9 4
3.8 I.-
E 3.6 3.7 .
A^A A
A
- AAAAA A 3
2
'a 0 E
.2 2
a 3.5 MW-122S 10 w - River Levels a
(U 3 3.4 0
0Ix Or 3.3-
-1 3.2
-- 2 3.1 3 -3 C4 'IT. 0 C~
0 ,4 0; 0 0 0 N
't a~1 0
a aD IO .iz C-_ N 0z 2 0Z i.- N- iz (N_
Time 0
MW-122S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 10 I-co
!. 10 c
0 Rainfall LU C - GW Elev XX U 1.5 12 35 c
0 Lu 0
0.5
-5 0
0 0
8 0 Cs 0 2 0) am rC\1N 2 X
(.0 1- ;
Time (
ci§ O
MW-122S Groundwater Elevation and Temperature 3rd Quarter 20 58 57.5 15 57 U,
I-co 56.5s
- c. o M U-0 (U GW Elev 56 e
-Temperature 2
a 10; (U
55.5E 0 I-0
- 55 0
54.5
-5 . ~ ~. . . . . . I, . . . . . . . . . . . i 54 0 0 0 0 0T 0
0 ('. 0) a, (0 Q Time 0 C20\
Groundwater Elevation at MW-124S 3rd Quarter 20 15-IL 5-04CI Time
Groundwater Elevation at MW-124S 3rd Quarter 3
Recharge Events 2.9 2.8 fl 2.7 un W- rp 2.6 A /
C 0
> 2.5 wS-L Detailed Area of p Tidal Cydes 9 2.4 cC River Level
Response
o 2.3 2.2 2.1 2
'1r 0r 0~ CD 0 0 0 CD- 0 0 a:
(N co Time 3 )
Detailed Area Groundwater Elevation at MW-124S and River Levels 3rd Quarter 3 3 2.9 2.5 2.8 2
- P 2.7 I~-
c 2.6 0
1 I HI 1 H 1 1 1 H 1 1.5 -
E is a 2.5 H AH H H M MI IM H H h H 1 !
l
- MW-124S I-L > River Levels l
0 2.4 I 1 -0.5 0
2 2.4 o 2.3 HI M MI IJ H H U U- U V H U- I I U ] U -0 2.2 V V V- , U 2.1 I- -0.5 2 1 I II I I I . ~~~~~~~~
.1 . I I I I I I I I I I I I I I I I I I I
-1 0t 'To 'IT.
0
°2 0 0 0 0 0 0 0 a IN- GD 0 fo 0) C,%
ED- 1z-1- I-f- r-. I.-.
Time C"2-0 z-
MW-124S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 201 1. r,
-3 15 I F
- 2.5 to I-
-2 _,
C
_ Rainfall C 10 S -GW Elev [
0
- 1.5 9 3-0-
-- I I
1o a
'U W 0.5
- 9 1~ i 1-- i I I~J I ; -[ .
nu1 0 'To 0 0 0 0 ae 0) 05 N Fz c'J a aD Time
MW-124S Groundwater Elevation and Temperature 3rd Quarter 20 57 56 15 55 C'
co C
0 0)
U.
2
- GW Elev
.6U
- Temperaturel 5
C E 0
53 0
52
-5 51 0 o o 0 0 0 o ° 0 ie-Time 0 Cl-OW
Groundwater Elevation at MW-504S 3rd Quarter 20 -
15 -
E 10
'U 0
.5 CD Tim Time 3 ) )
Groundwater Elevation at MW-504S 3rd Quarter 4
3.8 Tidal 3.6 -Cycles 3.4 E A~....................................
=3.2 -f 2
C) C Recharge Events and River Levels 2.2
)w..
Time
Groundwater Elevation at MW-504S 3rd Quarter 4 3 Tidal 3.8 Cyicsc 2.5 3.6 U)
E 3.4 lll/AelA A A1 AX 2 1.5 _
3.2 s
0 - MW-504S 3 1 0 1.W
- River Level l
'U A0 ;gI z\r 2.8 0.5U 0
2.6 2.4 2.2 2 . .. . . . . . . . . . . . . . . . . . . ... .2 . . . . -1 0t 0
't 0 0 "I 0 0't 0 0 0 0 0
a Tz Co N)
CD iN N Co: N< 0 Nz Nz iz C.'J Time 0
MW-504S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 aI)
F-10 0
(U _ _Rainfall 0 . - GW Elev (U
1.5 x
- 5 C,
0 0.5
-5 0 0 0 0 0 20 0 Time c CD N M Time
MW-504S Groundwater Elevation andTemperature 3rd Quarter 20 65 63 15 61 a
t0 I.-
L. 10 59 s c C M
0 P 0 (I
- GW Elev S
wO 57 0
- Temperature co 0 L-13 0
5 0 (U
C -55 En 2
53 0
51
-5 49 To 't 't 0 Co i 0 'T 0 0 ao Time 0 0
Groundwater Elevation at MW-508S 3rd Quarter 20 -
15 l 1o -
'U 0
LU C
0 0
5- Q
-5 o 0 0 0 0 0 o o 0 0 o0 o CD Xo Time
) ) )
Groundwater Elevation at MW-508S 3rd Quarter 12 11.5-Recharge Events
-J LA.
C 10.5 -_W 0 1 9.10 CC 0> 0 0)
Time
) ) )
MW-508S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5
- t L 10 00 2 ii 0 l Rainfall IL' I-GW Elevl 0
1.5 9 3 5 c
0 2
1 0
0.5
-5 0
'IT ' 'tj 'IT 0o 0 0 0 0Q0 0 aT 0 0)
CO I0- r- ;3 Time
MW-508S Groundwater Elevation and Temperature 3rd Quarter 20 63 62 15 61 I-.
E- 10 u0i c C P
40 0
- GW Elev 0 592
- Temperaturel 0
05 a.
'U c 58E 0 i!
a, 57 0
56
-5 55 o o o 0 0T 0 0
- 0) 0 a)
(0 N- f- N-_ (0 Time
Groundwater Elevation at TW-1 3rd Quarter 20 15 U,
10 10 e
0 sL -1w-C C
)0 Time
Groundwater Elevation at TW-1 3rd Quarter 4
I-co P.
C 0
I'll' CD Ui 0
1111111lIIIl]lI I111 -
TW-1 River Levels]
C 0
0
-1 o o 0 0 0 I 0 0 0 0Tm co Time 0
TW-1 Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 I-lo 0 2 _-:
c
-Ui amRainfall 0
2, - GW Elev 1.5 =
0 1
0 0.5
-5 0 o 0) 0 0 0 a 0 0 0 0) 0) co iz C'- Tm C Time 0
TW-1 Groundwater Elevation and Temperature 3rd Quarter 20 - 52 51.9 15 - 51.8 51.7 X -
I 10 - 51.6 =
.o I
"--GW Ele
- 51.5;V Us- - Temperature 3: 5 -51.4 E 0
5 51.3 0 - 51.2 51.1
-5 51 o O 0 0 0 X Time
- 0
- C;-x-
Connecticut River Elevation at the Boat Dock 3rd Quarter 20 -
15 -
U, I- 10 CI c C)))
-5. . . . . . . . . . . . . . . . . .
Time
Connecticut River Elevations and Daily Rainfall Totals 3rd Quarter 20 T
3.5 1
.3 15
- 2.5 (0
E 10 2- E-Rainfall
-GW Elev I-w 4-co 1.5 t 3 5 0
0.5 i, , , .1, 1, ,
W(N
, ,imell
-5 I-I 0
to ssFa Time 0
Connecticut River Elevations and Temperature 3rd Quarter 20 90 85 15 80 a 75 0 10 "-
-J IUD I-0 IL. -GW Elev 70 e 10
- Temperature 02 165I 40 4' 5 0.
65 E 0) 60 0
55
-5 50
't 0 0 0 0 To
-_ I m -T Time CA7I
Groundwater Elevation at TW-1 3rd Quarter 20 15 U,
Ic
. 1 C
0 Lu CD Tim C) )
Groundwater Elevation at TW-1 3rd Quarter 4
II
- 0 o
I-4-
0
'I I ngllllll]~t 1111 lIl~~lllISlt -
TW-1 River Levels 0
-1 o0 Q 0
ti'r unn 0 o 0 Tm (0
Time 0 0 C215
TW-1 Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 l
- r e-L- 10 0e 2 _:
4U 2-a Rainfall i - GW Elev I-W ._o 0
1.5 X 5
C 0
1 0
0.5
-5 0 0t To o 0 0 0 0 0 0 0) 0 i Cm)
Time
TW-1 Groundwater Elevation and Temperature 3rd Quarter 20 52 51.9 15 - 51.8 S .51.7 E 10 51.6 2 00 o 2 X - 51.5~- lGW Elev i Temperature
-5 51.4 P0 51.3 0 51.2 51.1
-5 51 o 0 0 0 0 0 60, CO N NC Time p ** Cl-f
Groundwater Elevation at MW-IOIS 3rd Quarter 20 15 U) n I-C 0
10 lu-Xe-------
.2 C)
U5 q
0 0
-5
-I.
0 O O 0 0 0) 0i C', 0) U) as co cv-Time
) ) )
Groundwater Elevation at MW-101S 3rd Quarter 11-co Detailed Area (1) 0
-7
'U C) to 0 0 ) 0c0 Time
Detailed Area Groundwater Elevation at MW-lOIS 3rd Quarter 9.6-9.5 C)9.4-a-
U-C 9.29.3 CD 9.1 9 I . I . . I . . . . . . '.I.
Time
MW-101S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 (0
I-U- 2 -
Rainfall S
- GW Elev I 0
1.5 Ix U 5 JI-16.
1 0
0.5
-5 0 aj C
o o 0 0) 0) 0 (O
1 Tm CO)
Time 0 0 C2ZI0
MW-101S Groundwater Elevation and Temperature 3rd Quarter 20 65 63 15 61 59
- r F-57 Mc 0
i0 0 'U -GW Elev 55 0 - Temperature c
0 (U 3
'U 0
r 0.
0 53 0!
0 51 0
49 47
-5 45 O o Q a 0 0 CD 0 0 0 iN N CD a) M n N O MD Lo C\J LO . ('1 Tim r -.
Q r- CD -
C CD Time 0 0
Groundwater Elevation at MW-102S 3rd Quarter 20 10 IVX 15b-JN I.2 5.
0 0-
-5. . . . . . . "
CD co-Time
) ) ,)
Groundwater Elevation at MW-102S 3rd Quarter 20 Note: Cap was not tightly secured after 2nd Quarter 2004 Sampling Event, therefore the peaks directly correspond to rainfall events.
15 Us)f (U
0
-5 CNI)
Time
) ) )
MW-102S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5, 3
15
-J 2.5 U-I-0 10 2
c 0
At l Rainfall
.(.G
.S
- GW Elev U-1.5 5
Ir-CD 1 0
0.5 A
-5 0
'4 '4 'I.
0 0 0 05 0 0 0) 0)
Co) 0l Q ;5 co Time
MW-102S Groundwater Elevation and Temperature 3rd Quarter 20 55.5 55 15 I 54.5 10 54 I- 0 i~10 c 0
- 53.5 U. - GW Elev L.U e -Temperature
- 53 co L-e 33 5 E
0
- 52.5 0!
A I 0M 4- - 52
- 51.5
. I . . I . I . . . I I . . I I . . I . . . . I 51 I .
.OJ 0I 'IT. 't 0 0 0D 0Q 0 0 CD 0) 7N C" Nl GD Time
. Camp
Groundwater Elevation at MW-103S 3rd Quarter 20-15-co LU X -
C>C C)))
-5 Time
Groundwater Elevation at MW-103S 3rd Quarter 4.5 Aquifer Recharge due to Rainfall events 4
u, 3.5 IL C on 0
'U Mat Sum 2 3 03 P
0 C
2 2.5 2
I I . . . . .I 1.5 . . . . I I I 0r '1 Co 0 a 04 0I I- 0- CD co) co Time
) ) )
MW-103S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5
-3 15 I
- 2.5 E. 10 10 -2 la c 0
_ ~ Rainfall wS. c GW Elev
.M 3 5 l rk I,, N - 1.5 I C-
-1 0
- 0.5
-5 0
't 'To 0 0
0 0 (N 0 C) ()
N a ;-D -z (0 Q Time 0 C 2~ *Z-
MW-103S Groundwater Elevation and Temperature 3rd Quarter 20 54 53.5 15 53
-J a,
2 E. 10 a)
C 52.5 2 0
-GW Elev
-Temperature l 0
(U CD 5 a.
co so 51.5 51
-5 50.5
'o o 0 0 0 0 ID o 0 0 a a Time 0 0 Ccg-~3Z
Groundwater Elevation at MW-106S 3rd Quarter 20 15-E 10 (D
0 co 0
- 0
_5
-5 . . .
CO e)-C~) CI O ° O r)
Time
) ) )
Groundwater Elevation at MW-106S 3rd Quarter 3.5 Peaks correspond to Rainfall Events 3
2 0a
= 2.5 0
'U K, N I Mat Sump on/off 32 C) o -
0 C.
/
1.5 w40 0 CD 0 0 0 a) 0 6) 01 C'e) r-CO e.J co co Time
,) )
MW-106S Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 a
0 E. 10 2
c Z= l Rainfall
.2 Zl LU - GW Elevl S 1.5 w V;5 r- 1 0
0.5
-5 0
't 0 0 0 0 C)0V aTmas Time
MW-106S Groundwater Elevation and Temperature 3rd Quarter 20 58.4 58.2 15 _rr 58 57.8 2
V I- l sr -- 57.6 co
,, - GWElev 57.4 i - Temperature 0
CD 0 5 57.2 E o' 12
- 57 0 56.8
- 56.6
-5 . . . .. . . . . . . . . . . . . . . 56.4
,It.
0 0 0 0t 02 0
co N 0- 0)1 I-Time
. C122,s
Groundwater Elevation at MW-107D 3rd Quarter 20 15 In E
c 10 0
0 w )
-5 co z Oa Time
Groundwater Elevation at MW-107D 3rd Quarter 3.5 0 @ Tidal Changes 3 -
E/\ l adBy .... Corresponds to Riveor High E
2.5 (U
2 Ara ...........
0 0 ~
1.5-Detailed Area .....
1 Time
) ) .)
Detailed Area Groundwater Elevation at MW-107D 3rd Quarter 3.5 3-E 2.5 0
1.5 BH12A ebg n2amln co 04 ITi-0)))
Groundwater Elevation at MW-107D and River Level 3rd Quarter 3.5 -
T* 3.00 2.50 3 A - 2.00 0
E 1.50 C 2.5 I 0
I-1.00
'U
- Groundwater Elev (AMSL)
-River 0 0.50 0
4-c 0 0.00 a.
1.5 V A VAV 'V -0.50
-1.00 1 I
'rj 0
I -1.50 I.-
Time 0 0 . C
MW-107D Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 2
co Ir-2
.2 c l Rainfall
'U 4U - GW Elev
.2 1.5 0
I 0
0.5
-5 0 0 o oo C" c00 r0 CDw T.-
i -m Time Cr2.2-7
MW-107D Groundwater Elevation and Temperature 3rd Quarter 20 57.3 57.29 15 57.28 a
- 0) 57.27 0
CL E
LU 57.264. 0
- 5 Xt GW Elev_
C 0 _ -57.23 L 57.252 0
57.24
-5
'IT.
0 0 CO 0 01 0
c.,J co a) co 1- ru- co Time 0 0 0 C-2fV-7_ ,
Groundwater Elevation at MWI09D 3rd Quarter 20-15 E
= 10*
-0 0 5-CC 0
Time
Groundwater Elevation at MWI 09D 3rd Quarter 4-BH-119 Testing EI 3-- ......
0
'U I.. .... ... .. . Detailed
?Flute removal at Area 2 C
2 2-° 2 0 ~~BH-1 19? .
Detailed Borehole Detailed Area # 1 *. testing of BH-120 Area #3 1
Time
) )0)
Detailed Area # I Groundwater Elevation at MWI09D 3rd Quarter 3.-
2.9-2.8-2.7 _ _
E c2.6-o2.5-2.4 BH-1 19 Flow BH-1 19 Downhole Characterization Sampling 0
O~ 2.3 - Testing 2.2-2.1 2
C'I CO) U') co(0 Time
Detailed Area #2 Groundwater Elevation at MW1O9D 3rd Quarter 3.5-3.3 -
3.1 2.9 -
E C 2.7-
~2.5-2.3-0 1.9 1.7 1.5 0 X(t N_ 0 It C N _, 0 o) 0) 0 a) 0) 0 co co co CC0 0 vo co co C C Time 3 9 3
Detailed Area #3 Groundwater Elevation at MWI09D 3rd Quarter 3.5-3.3 -
3.1 2.9 -
E C 2.7--
2.5 -
co 2.3-0 22.1 1.9 1.7-1.5C C)))
"I-.
Time
Groundwater Elevation at MWI09D and River Levels 3rd Quarter 5
3.4 4
3.2 It CD 961
-1. IVIVIUM Iat. II IM JJ II 3 E 3
-- JVL 11 cM 0 I II91 I II I . II 2 it(A
> 2.8 MW-109D 0 (A Uj S -River
.10 -J 1 0
- 2.6 M
0 2.4 II II III 0 I I 11, I II I 1 I 111,111 I 2.2 -1 2 -2 C C C 0 CD C 0 0 C 9 a C C 0
'T
'tj 0)
Qo CR C CD (0 0 C (0
CD I c'
!Z1 C 0)
Cz rs M~ (0 aD N-Time 0
MW- 109D Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 ur 2
co lo 0 2 -,
o Rainfall LU 15-
-GW Elev l 1.5 W 0
C -1 0
0.5
-5 0 0 0 0 0 0 0 c6 Mr i- - Tim Time
MW-109D Groundwater Elevation and Temperature 3rd Quarter 20 *57.56 57.54 15 57.52 57.5 I-57.48 co 0 0 57.46 LL GW Elev 3-W i - Temperature a, 57.44 EI
- 5 0.
57.42 E a,
0 57.4 0
57.38 57.36
-5 57.34 C o 0 0 0 0 c 03 co 0 0) ai N.
- fN.0 Time Card1
Groundwater Elevation at MW-IOD 3rd Quarter 20 15 E
C 10 LU O-0)
'U CC 00 Time
)~ )\ )~
Groundwater Elevation at MW-IIOD 3rd Quarter 2-Tidal Cycles 2-0 2 ,Detailed BH-121 .Area Testing
-1D D 1- r- - co-Time 3 3 3
Groundwater Elevation at MW-11OD 3rd Quarter 2-2
~0 i11-21 Flo BH' 21AAon Characterization Sampling C)))
ax Time
MW-1IOD Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 i
2.5
-I 0)
U A E- 10 14 N 2 C 10 III I
._ Rainfall 0
- 4) I I .E -GW Elev N
1.5 a
'35 0 i 1
klo 11 i 0 q II I
0.5
-5 I. ... - *1 '
'To C) 0
,0 C) i 0 0 0 0 c" 0) 0)
Time 0 . 123Z
Elevation and Temperature MW.. 1 OD Groundwater 3rd Quarter 20
-J I.-
0
-GW Elev T eret u 10 I-4 10
-5 0 X 8
a 00 Time (243?
Groundwater Elevation at MW-508D 3rd Quarter 20 15 -
-I
!!: 10 C
0
'U 3 -
0 0
(Un 0 0 o o 0 0 0Ti Time 9 9 3
Groundwater Elevation at MW-508D 3rd Quarter 4
3.8 3.6-Tidal Cycles 3.4 Cl) i 3.23
'U 2.8-C 2.6 2.4 2.2 Recharge Events and River Levels 2
04 C. 0 0 2 . . . ... . . .. . . . .
Time 9 3 3
Groundwater Elevation at MW-508D and River Levels 3rd Quarter 5- 3 4.5 2.5 A A A A 4 2 a 3.5 1.5 et AI Ar U 1n C')
I-1 C E 0
.5 -MW-508D
> 2.5 0.5 uJ W l River Level Iit 0 -j 0
3 2 0 0
o 1.5- j U U U U V T V , U V U V U V -0.5
-1 0.5 -1.5 0 -2 xt0 C\
0- N5 Time 0 0 C13+
MW-508D Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 2
I- 10 2 -
-W Rainfalle C C l-GW Elev I
.5 0
1.5 W 0
1
~:5
-o 0.5 0
o o 0 0 0 o 0 0 0a as ID Time 0 0
MW-508D Groundwater Elevation andTemperature 3rd Quarter 20 56 15 - 55 55 E -
o c X - GW Elev
- ~53; is e-Temperature 5 5--
C o -52
-0 51
-5 50 o 0 0 0 0 C Time 0 0
Groundwater Elevation at MW-101D 3rd Quarter 20 15-10 (U
(U 5 0
0 I-D CI
-5° 0 0 0 0 0 CD I- - 0 co Time 9 9 3
Groundwater Elevation at MW-101D 3rd Quarter 3
Aquifer Recharge due to rainfail events 2-2-1
-2 Detailed Area # 2 I.VI C, C Mat Sunf on/off I
-i; Time
() )' )~
Detailed Area #2 Groundwater Elevation at MW-101D 3rd Quarter 0*
-0.2 -
-0.4 -
4- .6
- -0.8 3 -
-1.2
-1.4
-1.6 . . . . . . . . . . . . . . . . . . . . . .
o
~ 0 0
,J C). .O.UU 0 0 C) 0 CD 0
C) 0 CD
- - - - 1¢ - - - -i Time 3 3 3
Detailed Area #2 Groundwater Elevation at MW-I01 D 3rd Quarter
-1.6
-1.65
-1.75
-1.75 IL
-2
-1.8 0
Ia 205
-2.05 CD co CD CNI a)))
Cf) cf) CO) CD C'4 ZZ4 C'J C' 0JCJ CN Time
MW-101D Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15
-J 2.5 10 0 2 L 1 C c 4- z<Ad Rainfall
- GW Elev i
0 1.5 0
I-.
M 0
0.5
-5 0 0 o 0 0 0 0 cT)
C 0O o o a 0) a l- N PI) 0i Time C 37
MW- 01 D Groundwater Elevation and Temperature 3rd Quarter 3 54.5 2
54.45 1
54.4 0 0 0 0 (U
'U
-1 54.35 *;
- GW Elev i - Temperature
-2 E c
54.3 so
-3 54.25
-4
-5 54.2 0 o 0 0 0 0 (0
CD) iC- CU co Time c2*S
Groundwater Elevation at MW-102D 3rd Quarter 20 15 -
I-10 C
C)
LU CI c co ro 0- 00 Time
Groundwater Elevation at MW-102D 3rd Quarter 5
Aquifer Recharge due to Rainfall Aquifer Recharge due to Rainfall 4
3 2
-J C,
/
I-
.20
.2 Transducer Download 3 -1 . 2ndQuarter 20 Sampling Event C
0 -2
-3
-4 I
_5 0 0r 0 0 0 aR 03 0o co QD I- CI-Time 9 9
MW-102D Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 15 3
10 2.5 n- 5 LL C
0 2-M 2 Rainfall 0
- GW Elev c(U
'a 1.5 M C -5 0S CD I
0.5
-15
-20 0 o o O 0 0 0 co iz N-- N- co Time
- C.-?
MW-102D Groundwater Elevation and Temperature 3rd Quarter 10 90 80 5
70 60 2 0 I2-4.1 50 ZD 0
-GW Elev 50 30 Y.!
.f
- Temperature 0
9 a-30 20
-15 10
-20 '4. 0
'T.
'4 'To CD 6 0) 6)
CO z1- C'4 0)
ZD0 co Time CA4-O,
Groundwater Elevation at MW-103D 3rd Quarter 20 -
150 lo-C},
5 0
-5 C)))
Time
1.
Groundwater Elevation at MW-103D 3rd Quarter 3-Aquifer Recharge due to rainfall events 2-U, Detailed Area (1) 0 - 2nd Quarter 2004 Sampling EvntMat Sump Aquifer Recharge due to rainfall events onloff C _
0 0 0) 0 'o a0 0 a)
Cr) co I,- r,-
Time
.) 3
Groundwater Elevation at MW-103D 3rd Quarter 2.2 2
-J U,
0 0
UJ t. 1.6 o1.4 1.2 Time
MW-103D Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 U)
E!: 10 I- 2 U- 1 C
'0U
- Rainfall w .- GW Elev M 'U 1.5 V~ 5 0
1 0
0.5
-5 0 oo
'To 0 0D 0 0 0
ao o 0 o )
no N Tm t Time C O22L/
MW-103D Groundwater Elevation and Temperature 3rd Quarter 4 54.6 3
54.4 2
ffl 54.2 Z
M C
0 e
-GW Elev
'U
- 0. lTemperature l E
0 CD 53.8
-3 53.6
-4
-5 53.4 C o 0 0 0 0 C3 Time
- C,2-4z-
Groundwater Elevation at MW-106D 3rd Quarter 20 -
15 01 C
5.2
-5 0~
o a 0 Time
) 9 )
Groundwater Elevation at MW-106D 3rd Quarter 4.5 4.
3.5 -Detailed Area (1) z 3-
.2 co Iii 2 -
1.5 2.5 - tetn .........................
tB-1 1*
OS ~~~~~~~~~Borehole _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
0.5 testing at BH-1 1A 0
co r- A cos Time 9 9 9
Detailed Area of Groundwater Elevation at MW-106D 3rd Quarter 1.65 -
0721: Colog begins development of BH-11 8A (10 GPM, 3 ft drawdown at start up) 1.45-1.25 U) 1.05
_16:55: Colog eins c pumping at BH- 1 BA /
X2 at 31 GPM
> 0.85-0.65 0.45 -
Colog pump off at 17:20, maximum drawdawn at BH-118A:
78.0ff 0.25 Time 9 9 )
MW 106D Water Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 2
U- 10 0 2 c
.I I - Rainfall xU
- - GW Elev w0 (U 1.5 5
H 0
1 0
0.5
-5 ii _______________________
0
't 0 0 0 0
- 0)
CO 0, 0, CD I.-
Time 0
MW 106D Groundwater Elevation and Temperature 3rd Quarter 20 59.15 59.1 15 59.05 59 58.95 v I--
co 0
!!:, 10 c
00 2 58.9 M 0
U. - GW Elev 2
IW 58.85 a - Temperature P
58.85F t:L E
58.75 0
58.7 58.65
-5 58.6 a 0 0 0 0 CD N- I- -Ti Time C 2~4LPL
Groundwater Elevation at MW-122D 3rd Quarter 20 -
15 0
cm
'U e-
Groundwater Elevation at MW-122D 3rd Quarter 3-Tidal Cycles C))2 I-C 0
(U 0
Detailed BH-121A Area Testing 0
Time
Detailed Area Groundwater Elevation at MW-122D 3rd Quarter 3-LL.
0 BH-121A Flow Characterization BH-121A Downhole Sampling 0
Time
)99
MW-122D Groundwater Elevation and Daily Rainfall Totals 3rd Quarter 20 3.5 3
15 2.5 U-Co 0 2-
.4- laiEg Rainfall 3 5 ._
wi c -GW Elev I S
1.5 W 0
0.5
-5 0 C) o 0 0 0 0 Co CY)
Time
. --,+
MW-122D Groundwater Elevation and Temperature 3rd Quarter 20 53.85 53.8 15 2 53.75 0
E 10 cM U-0 CU
-GW Elev 53.7 e
- Temperature 02 5.
E I.-
So 53.65 0
-:5 53.6 53.55 a o C 0 0 0 0 0) 0a 0) ct) aD .Q Tm Q Time
Appendix 7 Data Quality Assessment of Long-Term Hydrographs c
Data Quality Assessment of Long Term Water Level Analysis The following is a data quality assessment (DQA) of the long-term water level analysis performed at Connecticut Yankee Atomic Power Company Haddam Neck Plant (HNP). The data set was generated from 28 HNP monitoring wells, one surface-water station (Connecticut River), and the mat sump. Water levels at all of these stations were monitored using dedicated data-logging pressure transducers (transducers) on a continuous basis during an approximate 7-month period between January and August 2004. The data were evaluated against criteria for measurement precision, accuracy, representativeness, completeness, and comparability to determine data validity and usability. The following summarizes the results of the DQA, as well as recommended corrective actions.
Summary of Data Collection Activities Water levels and temperature were monitored at 28 HNP monitoring wells, one surface water station (Connecticut River), and the mat sump using transducers on a continuous basis during an approximate 7-month period between January and August 2004. The long-term water level analysis was used to meet the following data needs:
- Identify aquifer responses to various onsite activities including; recharge responses due to precipitation, mat sump and dewatering well pumping, tidal changes, general river stage variations in the Connecticut River, packer testing, well installations, well development, sampling events, and hydrophysical logging.
- Determine the apparent groundwater flow direction across the site within the three identified hydrostratigraphic units.
- Provide information for aquifer tests.
- Calculate the vertical pressure differences between the identified hydrostratigraphic units across the site.
In addition, transducers recorded water temperature, which was subsequently compared to water levels at the same frequency.
The instruments selected in this measurement system are Mini-trollTMI data-logging transducers manufactured by In-situ, Inc. The transducer system was installed in the last week of January 2004. The transducers were suspended at the lowest expected water level to be encountered in the well. Initially the transducers were attached to the well's cap. The system was subsequently modified to minimize transducer movement during well access.
The transducers were initially set up to record measurements on one-minute intervals. To optimize the memory capacity of the transducers, they were subsequently re-programmed 21OCT o4_WLAiALYSISJDOATASK2RPT.MKYVlCWM EDNTS.DOC
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to record measurements on five-minute intervals in May 2004. The transducers were downloaded on a quarterly basis and as needed between the routine downloads.
Transducer measurements were converted from pressure (in psig)to a final groundwater elevation value (in ft MSL). The reading is a combination of the water column pressure and the atmospheric pressure above the transducer. A barometric pressure transducer is used to correct the transducer pressure for barometric fluctuations. The following calculations were performed to determine the groundwater elevation at each of the transducer locations:
Barometric Pressure correction to achieve the corrected PSI value:
Corrected PSI =Total PSI (initial transducer reading) - Atmospheric PSI (barometric pressure transducer)
Corrected PSI is then converted to a water column height:
Height of water column above transducer (ft) = Corrected PSI
- 2.3067 ft/PSI A hand-measured depth to water measurement (DTW) is added to the height of the water column to determine the transducer depth:
Transducer Depth (ft bgs) = Length of water column (ft) +DTIV The transducer depth, calculated from the DTW collected at the time of download, is then subtracted from the length of the water column, to achieve a DTW at every 5-minute interval:
DTW at every 5-minute interval (ft bgs) = Transducer Depth (ft) - Length of water column (ft)
The DTW subtracted from the surveyed top of casing elevation (TOC) results in the groundwater elevation:
Groundwater Elevation (ft AMSL) = TOC - DTIV The transducer data and data reduction calculations are maintained in Microsoft ExcelTM spreadsheets. The resulting reduced data sets were subsequently plotted as hydrographs displaying the change in water level elevation (normalized to Mean Sea Level) over time.
The hydrographs were inspected for hydraulic responses that appear to be temporarily related to known on-site transient events.
Summary of Data Collected Groundwater flow through unconsolidated material and fractures in the underlying bedrock is affected by a variety of natural processes and forces. Precipitation, drainage, infiltration and tides cause a variety of short-term and seasonal fluctuations in the location and direction of flow of groundwater.
The screen intervals of monitoring wells at the HNP can be subdivided into 3 groups: those screened in the unconsolidated deposits overlying bedrock, those in shallow bedrock or 21 OCT O4.WLANALYSIS-)aTASK2RPTLMKyI.CWM E(TS.DOC 2
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screened across the unconsolidated deposits/bedrock boundary, and those in deep bedrock.
The shallow bedrock, that within 10 feet of the bedrock surface, as a general rule, appears to be more highly fractured and partially weathered, and provides a more permeable pathway for groundwater flow than deep bedrock. Bedrock at a depth greater than 10 feet below bedrock surface appears to be less transmissive in comparison. Figures 4-3 through 4-26 in the Task 2 Supplemental Characterization Report (CH2M HILL, 2004) show inferred groundwater flow directions for these three units. The localized depression in groundwater elevation caused by operation of the containment mat sump is apparent in all three figures.
The data collected throughout the three quarters were compiled into detailed hydrographs for each transducer location. Four or more hydrographs are presented in Appendix B in the Task 2 Supplemental Characterization Report (CH2M HILL, 2004) for each location; one graph of the observed groundwater elevation, one hydrograph of the groundwater elevation versus temperature, one hydrograph of the groundwater elevation versus total daily rainfall and one or more hydrographs of the observed groundwater elevation with annotations correlating recorded pressure transients to specific known events.
Results of Data Quality Assessment The data were assessed for precision, accuracy, representativeness, completeness, and comparability. The individual assessment parameters are discussed in.the following subsections.
Precision Precision is the measurement of the repeatability of a measurement or measurement technique. In other words, precision is the degree to which multiple measurements collected in the same manner result in the same answer. Two ways to confirm the precision of the data collected is to observe the hydrographs to see if the data "flows" together, and to determine the amount in which the transducers electronic readings drift over time.
The hydrographs reveal that the transducers, for the most part, precisely collected measurements. The water levels over time uniformly decrease and increase, indicating that very accurate measurements were being downloaded at every five minute interval.
Accuracy Accuracy refers to the degree to which a measurement technique or method can reflect a known value or be compared to a known value or standard. Accuracy is typically expressed in terms of how close a measured value comes to the value of a known standard using the same technique. All of the transducers were factory-calibrated to known pressure standards and the calibration records are kept in project files. To achieve accurate top of casing (TOC) elevations, the transducer locations were surveyed by a licensed surveyor in November 2003. The surveyed values were used to calculate the final groundwater elevation values presented in the hydrographs in Appendix B of the Task 2 Supplemental Characterization Report (CH2M HILL, 2004).
Inspection of the hydrograph from MW-101D indicated a temporal trend of water level that was inconsistent with nearby wells and did not indicate expected responses to on-site stresses. The transducer was tested by raising it to the ground surface and recording the 21 OCT 04_VWLANALYSIS_DCA.TASK2RPT..MKyVlCWM EDITS.DOC 3
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indicated atmospheric pressure. The indicated pressure at ground surface was not consistent with atmospheric pressure, indicating a calibration shift in the transducer. The water level data for MW-101D were subsequently identified as inaccurate and are not used in any water level analysis.
An atmospheric pressure check will be initiated as part of regular transducer data collection to verify calibration status of the instruments. The transducer/data logger from MWIV-101D will be returned to the manufacturer for recalibration.
Representativeness Representativeness refers to the degree to which a data set is actually a sample of a population. In this case representativeness refers to the degree to which the measurements collected from the transducers can be utilized to portray the overall site. The data set was generated from 28 HNP monitoring wells, one surface-water station (Connecticut River),
and the mat sump. Of the 28 monitoring wells, 14 are screened in the unconsolidated hydrostratigraphic unit (unconsolidated), 8 are screened in the shallow bedrock hydrostratigraphic unit (shallow bedrock), and 6 are screened in the deep bedrock hydrostratigraphic unit (deep bedrock).
The 14 unconsolidated monitoring wells are placed throughout the site, providing a thorough depiction of the groundwater in the unconsolidated unit.
There are fewer shallow bedrock wells, however they are placed throughout the site, providing adequate representation of the shallow bedrock unit.
Of the six deep bedrock wells, only five deep bedrock wells that were used in the long-term water level analysis due to the transducer malfunctions in MW-101D (discussed in the Precision section). Groundwater flow in the deep bedrock is characterized in a limited portion of the HNP, as deep bedrock monitoring wells are only present in the central and northern portions of the industrial area. Data collection during the long-term water level analysis is comprehensive with respect to the unconsolidated and shallow bedrock units, and is less comprehensive in the deep bedrock unit. In addition, groundwater flow in the deep bedrock is dominated by fracture flow. Orientation of fractures and interception of fractures by wells define the apparent adequacy of deep bedrock water level monitoring.
Groundwater levels at HNP rise and fall on a daily or seasonal basis in response to recharge events (i.e., precipitation/snowmelt) and other hydraulic effects such as tides, groundwater extraction and borehole testing activities. During periods of minimal recharge that can occur during a prolonged mid-winter freeze or mid-summer drought, groundwater levels in an aquifer will typically decline because of the natural, ongoing base-flow contributions to local or regional discharge zones such as streams, rivers, or lakes. The natural decline (or antecedent trend) in groundwater levels during periods with little or no recharge is expected to vary on a site-wide basis, due to differences in aquifer characteristics and hydraulic properties.
The long-term water level analysis that was conducted over the past three quarters was able to, for the most part, adequately portray most of these groundwater responses. In a few cases, rainfall events occurred at the same time that the mat sump and dewatering well 21 OCT 04VWLANALYSISDOATASK2RPTMKVIlCM EDITS.DOC 4
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operations were interrupted. As a result to these onsite activities occurring simultaneously, well responses were masked.
In summary, the water level monitoring data are considered to be representative of the conditions within the HNP industrial area.
Completeness Completeness refers to the ability of the data set to encompass the entirety of the target system. The data should be sufficient to answer the questions that prompted the data collection in the first place. The water level data collected from the instrumented wells were complete with the following exceptions:
- The river froze, which caused the battery in the river transducer to shut down, ultimately preventing data collection between approximately February 23 and April 12.
Inspection of the hydrograph for well TW-1 indicated that the well exhibited a temporal response identical to the river. By examrination, a fixed off-set from the river fluctuations was identified for well TW-1. As a result, adjusted water elevation data from TW-1 were used as a surrogate to complete the hydrographs for the river during this period of time in the first and second quarters. The Connecticut River continued to exhibit clear tidal fluctuations during this time.
- The large data shifts observed over three quarters in MWV-1O1D are apparently caused by calibration drift. The data from that transducer are not considered usable for water level analysis.
- During a time period of approximately thirty-six hours in the middle of May, the data-logging in all 30 transducers was halted. At installation, the transducers had been programmed to download measurements every minute, and when they were halted, they were reset to download data every 5-minutes. This gap is seen in the hydrographs presented in Appendix B of the Task 2 Supplemental Characterization Report (CH2M HILL, 2004). This brief interruption does not impair usability of the data.
Completeness was calculated as:
Nv C - xlOO Np Where: C = Completeness of the data set, presented as a %
Nv = The number of valid, usable, measurements collected in the data set Np = The number of valid, usable, measurements planned, or initially identified for collection Approximately 95% of the transducer data was able to be used as part of the data set.
21OCT 04.WLANALYSIS-DOA-TASK2RPTYKI<_VYCWM EDITS.DOC 5s
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Comparability Comparability refers to the degree to which a data set, or single datum can be compared to another measurement for the purposes of assessing change over time or space. The object of the comparability assessment is to ensure that the present data set can be compared to previous and/ or subsequent measurements. Two types of assessment were made to evaluate comparability. First, the transducer hydrographs for sequential data download events were compared to the previous event. Secondly, transducer measurements were compared to independent hand measurements collected during regularly-scheduled groundwater sampling events.
The sequential data sets collected from the transducers compare very well and area considered comparable for subsequent measurement. The comparison to hand measurements does not indicate consistent comparability. The cause of the difference (as shown in Table 1) is not'apparent. The hand measurements were collected by multiple individuals at different times. The observed differences between the instrument measurements and the hand measurements indicates the need to perform a series of frequent hand measurements under rigorously-controlled conditions to assess the comparability of the measurement sets. The reason for the apparent variability in comparability between the transducer and hand measurements is not apparent Groundwater at HNP is a dynamic system, andthe water levels are constantly changing; therefore it is essential to collect a rigorously-controlled set of measurements to fully assess comparability.
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Table 1. Comparison of Manual Depth to Water and Transducer Depth to W"later Well ID Manual DTW (ft Transducer DTW Absolute TOC) (ft TOC) Difference (ft)
MW-1 00S 3.53 4.01 0.48 MW-101D .
MW-101S 6.31 6.35 0.04 MW-102D 14.35 15.69 1.34 MW-102S 15.3 13.94 1.36 MW-103D 16.99 17.07 0.08 MW-103S 16.38 16.8 0.42 MW-104 11.93 12.50 0.57 MW-105D 15.81 '16.40 0.59 MW-105S 16.18 16.37 0.19 MW-106D 16.12 16.76 0.64 MW-106S 16.79 12.69 4.1 MW-107D 15.84 16.78 0.94 MW-107S 15.3 15.96 0.66 MW-108 7.82 8.23 0.41 MW-109D 17.16 14.83 2.33 MW-109S 17.26 18.38 1.12 MW-11OD 20.78 20.52 0.26 MW-11OS 21.16 22.47 1.31 MW-113 12.43 13.53 1.1 MW-114 16.44 16.01 0.43 MW-122D 15.93 17.02 1.09 MW-122S 13.16 14.28 1.12 MW-124 17.74 17.77 0.03 MW-504 13.26 13.27 0.01 MW-508D 14.5 14.55 0.05 MW-508S 7.29 8.42 1.13 TW-1 16.07 17.87 1.8 Notes:
DTW = Depth to Water Ft TOC = feet below top of casing 21 OCT 04_WLANALYSIS.DQ4_TASK2RPTJ.MKYVC'M ED(TS.DOC 7
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Data Quality Assessment Summary Overall, the data quality assessment procedure indicates that the water level data are acceptable for utilizing in the ongoing hydrogeological characterization at the HNP. The following activities are recommended facilitate assessment of precision, accuracy, representativeness, completeness, and comparability of future measurements:
- The transducer in MW-1O0D will be sent back to the manufacturer for calibration and/or repair.
- An atmospheric pressure reading will be collected from each transducer, quarterly to confirm calibration.
- Additional deep bedrock monitoring wells may be instrumented to more fully represent and analyze the deep bedrock unit at the HNP.
- A series of regularly-scheduled manual water level measurements will be collected on a bi-weekly basis for approximatly 6 months to assess comparability of the monitoring system. These measurements will include consistent hand measurement techniques and time records synchronized to the transducer clocks.
- Transducer/data logger batteries will be changed and the instruments inspected before winter.
21 OCT 04.WLANALYSIS-DOkATASK2RPTYMKV-W7 EDTS.DOC 8