ML19363A007

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Cimarron Corp Appendix 4 - Unaffected Area
ML19363A007
Person / Time
Site: 07000925
Issue date: 09/14/1999
From:
Cimarron Corp
To:
Office of Nuclear Material Safety and Safeguards
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ML19365A023 List:
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Download: ML19363A007 (26)
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APPENDIX 4 - UNAFFECTED AREA

Tuesday,.mber 14, 1999 3"

LN GRID DETECT MICRO MICRO R'

R' CIMARRON.PORA TION CIMARRON FACILITY Sub-Area "G" Unaffected Depth Soil Samples 0 - 6" 6 11 - 1' NUMBER C.P.M.

SURF 1 METER Total-U Th (Nat)

Total-U Th (Nat) 1 540E-725N 8448 14 14 6.4 1.5 6.4 1.2 2

545E-760N 11020 12 10 9.5 1.5 6.9 1.3 3

550E-695N 8550 13 13 6.9 1.2 6.3 1.2 4

550E-720N 8626 15 13 5.1 1.2 8.5 1.3 5

550E-745N 8376 14 13 9

1.2 9.9 1.1 6

585E-770N 10802 11 11 9.4 1.5 6.3 1.5 7

590E-765N 11182 12 11 7.9 1.8 7

1.7 8

595E-770N 11018 12 11 5.7 1.7 5.1 1.4 9

740E-680N 7522 8

7 1.8 0.5 4.9 0.8 10 790E-640N 8208 8

8 3.7 0.9 5.4 1.3 11 12 13 14 15 16 17 18 INSTRUMENTS:

RESULTS IN LUDLUM MICRO 'R' METER - 19 S/N 111299

µr/hr LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 CPM CIMMARON SOIL COUNTER X" X 4" X 16" Nal DETECTOR pCi/G BACKGROUND NOT SUBTRACTED REVIEWED BY:

FILE: GUDEPTH C:\\OFFICE\\QP\\/\\I\\AREA-G\\GUDEPTH.WB2 QAQC-1.

REV.1 pCi/g 1' - 2' 2' - 3' 3' - 4' Total-U Th (Nat)

Total-U Th (Nat)

Total-U Th (Nat) 6 1.2 7.7 0.9 8

1.3 6.2 1.4 7.2 0.5 7.5 1.2 7.8 1.3 9.1 1.7 4.3 0.7 5.0 0.3 3.6 0.4 7.0 1.4 5.3 1.3 6.7

1.0 BACKGROUND

MDA 9

2 8000 N/A Total U 4

5 Th (Nat}

1.5 1

DATE: 7-11--,c;

250 300 350 SAMPLE ID LOCATIONS EASTING NORTHING 1

540 725 2

545 760 950 3

550 695 4

550 720 5

550 745 6

585 770 7

590 765 900 8

595 770 9

740 680 10 790 640 850 750 700 650 600 550 500 450 250 300 11 I

400 450 500 550 600 650 URANIUM URANIUM URANIUM URANIUM URANIUM 0 -

6" 6" -

1*

, * - 2' 2' - 3' 3' -

4' pCi/q pCi/q pCi/q pCi/q pCi/q 6.4 6.4 6.0 9.5 6.9 7.7 6.9 6.3 8.0 5.1 8.5 6.2 9.0 9.9 7.2 9.4 6.3 7.5 7.9 7.0 7.8 5.7 5.1 9.1 1.8 4.9 4.3 5.0 3.6 3.7 54 70 5.3 6.7

1. 4

+

SAMPLE ID LOCATIONS

  • -r-

........ -- s.--..... -...

/

S, B-AREA G

' /

........... 7....:.-- --*"*.................... *--;;/*

/

r- -

, I f

I I

. I I

  • 1 I

1 1 I

  • 1 I

i I URANIUM WASTE I

I

/

I POND #2 I
I I
I I

..T.. *-* ***-- ---* ----. *--- ***-.....,... -.. **-**** ---*--.

! I I

I I

I

  • I I

I ii I

  • 1 I
I I

ii

____ LJ 400 450 500 550 600 650 700 700 750 800 850 900

(

  • ~.. \\.. --.. --.. --* *-*. *-.....
10. --*

0

  • - --A *****----.I

/

(.-- --.-,-~

950 1000 1050 1100 1150 1000 950 900 850 800 750 700 1000 1050 1100 11 50

!!Qfil; SAMPl£S ARE IN PICO-CURIES PER GRAM UIW-llUM (pCi/g U).

CIMARRON GAMMA SPEC SOIL COUNTER SITE SOIL BACKGROUNO OF 4 pCi/g U, NOT SUBTRACTED.

50 0

SQQ i 1~

SCALE IN METERS **

~

CIMARRON CORPORATION CIMARRON FACILITY PHASE II -

SUB-AREA G UNAFFECTED AREA DATA SOIL DEPTH SAMPLE RESULTS REV.

D£SCRIP110N BY: C1<'0 in: APP'D BY: °"n:

~

  • J E DAlE SCII£ 7 /28/99 "5 SHOWN t---=--+=:,----,---,-,--=:----------t--:~--,c-+-c----tc:::~.,..,..,fJ08 NO.

0 DRAWING ISSUED.

JE WR JL O 18 99 DRAWING NO.

99P0SGUNSS-1 REV.

0

... CIM\\SUBAREA99\\ UNAITTCTED-D£PTH\\99POUGSS 1

Wednesday, July 21, 1999 PHASE II, SUB-AREA "G" - DEPTH UNAFFECTED AREA CIMARRON SOIL COUNTER TOTAL URANIUM SOIL SAMPLE RESULTS SITE BACKGROUND OF 4 pCi/g NOT SUBTRACTED JULY 19, 1999 URANIUM SA:MPLE RESULTS FREQUENCY DISTRIBUTION 20 ~~~~~~~~~~~~~~

(/)

w

.....J ~15 +-~----t~~ - ---+-

<(

(j)

?) 10 a:::

w (I) 5 +---------

~

2 o u-LJ_J 2

4 6

pCi/g 8

NUMBER OF SAMPLES 34 AVERAGE SAMPLE 6.6 MINIMUM SAMPLE 1.8 MAXIMUM SAMPLE 9.9 STANDARD DEVIATION 1.8 A:\\GUDPSSGP.WB2 10

Wednesday, July 21, 1999 PHASE II, SUB-AREA "G" - DEPTH UNAFFECTED AREA CIMARRON SOIL COUNTER TOTAL THORIUM SOIL SAMPLE RESULTS SITE BACKGROUND OF 1.5 pCi/g NOT SUBTRACTED JULY 19,1999 THORIUM SAMPLE RESULTS FREQUENCY DISTRIBUTION CJ) 25 -

w

.....J o... 20 ------,--------+-

~

~ 15 -

--~----+-

LL 0 10 ----+-----+-

D:'.'.

w

~ 5 ---.......----

J z O +

0.5 1

pCi/g 1.5 NUMBER OF SAMPLES 34 AVERAGE SAMPLE 1.2 MINIMUM SAMPLE 0.3 MAXIMUM SAMPLE 1.8 STANDARD DEVIATION 0.4 A:\\G U DPTHGP. WB2 2

Wednesday, July 21, 1999 PHASE II, SUB-AREA "G"

  • DEPTH UNAFFECTED AREA MICRO-R METER READINGS AT SURFACE LUDLUM MODEL 19, S/N 111299 RESULTS IN µR/hr JULY 19,1999 MICRO 'R' READINGS @ SURFACE FREQUENCY DISTRIBUTION 3.-----------,----,

Cf)

~ 2.s +-I ---------i------

~ 2 !

w i

0::

LL 1.5 '

0 0::

1 '

~

i

~ 0.5

)

I z

O !

8 11 12 13 14

µR/hr NUMBER OF SAMPLES 10 AVERAGE SAMPLE 12 MINIMUM SAMPLE 8

MAXIMUM SAMPLE 15 STANDARD DEVIATION 2

A:\\GUDPURGP.WB2 15

Wednesday, July 21, 1999 PHASE II, SUB-AREA "Gn - DEPTH UNAFFECTED AREA MICRO-R METER READINGS AT 1 METER ABOVE SURFACE LUDLUM MODEL 19, S/N 111299 RESULTS IN µR/hr JULY 19,1999 MICRO 'R' READINGS @ 1 METER FREQUENCY DISTRIBUTION 3 -------,----

(J)

(9 z 2.5 +------'--------+--

~--1 0

i-, - - - - - - -

<(

2 ~---------.-

~

.--I - - -. - - - - - -

u.. 1.5 ---------

0 0:::

1 l.l.J co

~ 0.5 z

o !

7 8

10 11

µR/hr 13 NUMBER OF SAMPLES 10 AVERAGE SAMPLE 11 MINIMUM SAMPLE 7

MAXIMUM SAMPLE 14 STANDARD DEVIATION 2

A:\\GUDPURGP.WB2

Wednesday, July 21, 1999 PHASE II, SUB-AREA "G" - DEPTH UNAFFECTED AREA GROSS GAMMA READINGS IN CPM LUDLUM MODEL 2221, S/N 97264 BACKGROUND AVERAGES: 8000 JULY 19,1999 3" Nal DETECTOR READINGS FREQUENCY DISTRIBUTION 5,--~

U) i (9

-* ----+-

z 4 -'-

0

<(

~3 ----

u..

0 2 -~----,--

0:::

w co 1 !

~

> z o I 8000 9000 10000 CPM 11000 12000 NUMBER OF SAMPLES 10 AVERAGE SAMPLE 9375 MINIMUM SAMPLE 7522 MAXIMUM SAMPLE 11182 STANDARD DEVIATION 1364 A:\\GUDP3DPG.WB2

CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AREA 'G' (UNAFFECTED) DEPTH n = pCi/g TOTAL U Number n

(n-N)

(n-N)2 1

6.4

-0.2 0.0 2

9.5 2.9 8.6 3

6.9 0.3 0.1 4

5.1

-1.5 2.2 5

9 2.4 5.9 6

9.4 2.8 8.0 7

7.9 1.3 1.8 8

5.7

-0.9 0.8 9

1.8

-4.8 22.8 10 3.7

-2.9 8.3 11 6.4

-0.2 0.0 12 6.9 0.3 0.1 13 6.3

-0.3 0.1 14 8.5 1.9 3.7 15 9.9 3.3 11.1 16 6.3

-0.3 0.1 17 7

0.4 0.2 18 5.1

-1.5 2.2 19 4.9

-1.7 2.8 20 5.4

-1.2 1.4 21 6

-0.6 0.3 22 7.7 1.1 1.3 23 8

1.4 2.0 24 6.2

-0.4 0.1 25 7.2 0.6 0.4 26 7.5 0.9 0.9 27 7.8 1.2 1.5 28 9.1 2.5 6.4 29 4.3

-2.3 5.2 30 7.0 0.4 0.2 31 5.0

-1.6 2.5 32 5.3

-1.3 1.6 33 3.6

-3.0 8.8 34 6.7 0.1 0.0 35 0.0 0.0 36 0.0 "

0.0 37 0.0 0.0 38 0.0 0.0 39 0.0 0.0 40 0.0 0.0 41 0.0 0.0 42 0.0 0.0 43 0.0 0.0 44 0.0 0.0 45 0.0 0.0 46 0.0 0.0 47 0.0 0.0 48 0.0 0.0 49 0.0 0.0 50 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 No. of Samples (x) :

34 COUNT TIME: 5 MINUTES Sample Mean (N) = Sum(n) + (x)

Sample Mean (N) :

j 6.57 j Standard Deviation (Sd) = SQRT [(n-N)2 + (x -1)]

Standard Deviation: [3K}

2 Std Deviations: ~

Degree of Freedom(df).= (x) - 1 Data listed on Table B-1 (df) = I 1.693 I Area's Average Level (Aµ)= (N) + (df) x [(Sd)/SQRT(x)]

(Aµ)= ~

pCi/gU TOTAL U GUIDELINEVALUE:

pCi/gU TOTAL u Acceptable Level:

pCi/gU TOTAL U TABLE B-1 Factors for Comparision of Survey Data with Guidelines (df) 95%

97.5%

(df) 95%

97.5%

1 6.314 12.706 19 1.729 2.093 2

2.92 4.303 20 1.725 2.086 3

2.353 3.182 21 1.721 2.08 4

2.132 2.776 22 1.717 2.074 5

2.015 2.571 23 1.714 2.069 6

. 1.943 2.447 24 1.711 2.064 7

1.895 2.365 25 1.708 2.06 8

1.86 2.306 26 1.706 2.056 9

1.833 2.262 27 1.703 2.052 10 1.812 2.228 28 1.701 2.048 11 1.796 2.201 29 1.699 2.045 12 1.782 2.179 30 1.697 2.042 13 1.771 2.16 40 1.684 2.021 14 1.761 2.145 60 1.671 2

15 1.753 2.131 120 1.658 1.98 16 1.746 2.12 400 1.649 1.966 17 1.74 2.11 Infinite 1.645 1.96 18 1.734 2.101 For values of Degrees of Freedom not listed:

Interpolate between th~e_lis_t_ed_v_a~lu_e_s. __ -,-----r----,

(df) high value(Z) 40 is (BJ 1.684 (df) low value(Y) 30 is (A) 1.697 Desired value(df) (X) 33 is calculated as follow:

EXP[( (Ln(B)-ln(A)) + (Z*Y)) (X-Y) + Ln(A)]

The (df) value for (X) I 33 I 1.693 I 95%

95%

95%

0.0 0.0 PERFORMED BY: ~L 0.... ~

REVIEWED BY: 01'~ ai-..,)

DATE: ?-i..r-? r 0.0 0.0 7-.;2 I-77 DATE:

223.5 111.1

?

Sum{n) sum(n-N)2 PAGE 1 OF 1 A:\\OUSSOPCP

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AREA 'G' (UNAFFECTED) DEPTH Number n

1 1.5 2

1.5 3

1.2 4

1.2 5

1.2 6

1.5 7

1.8 8

1.7 9

0.5 10 0.9 11 1.2 12 1.3 13 1.2 14 1.3 n = pCi/g Th (NAT)

(n-N)

(n-N}'

0.3 0.1 0.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.3 0.1 0.6 0.4 0.5 0.3

-0.7 0.5

-0.3 0.1 0.0 o.o 0.1 0.0 0.0 0.0 0.1 0.0 No. of Samples (x):

34 COUNT TIME: 5 MINUTES Sample Mean (N) = Sum(n) + (x)

Sample Mean (N) : I 1.19 i Standard Deviation (Sd) = SQRT [(n-N)2 + (x - 1 )]

Standard Deviation: []}[]

2 Std Deviations: ~

15 1.1

-0.1 0.0 Degree of Freedom(df).= (x) - 1 Data listed on Table B-1 16 1.5 0.3 0.1 17 1.7 0.5 0.3 18 1.4 0.2 0.0 19 0.8

-0.4 0.2 20 1.3 0.1 0.0 21 1.2 0.0 0.0 22 0.9

-0.3 0.1 23 1.3 0.1 0.0 24 1.4 0.2 0.0 25 0.5

-0.7 0.5 26 1.2 0.0 0.0 27 1.3 0.1 0.0 28 1.7 0.5 0.3 29 0.7

-0.5 0.2 30 1.4 0.2 0.0 31 0.3

-0.9 0.8 32 1.3 0.1 0.0 33 0.4

-0.8 0.6 34 1.0

.0.2 0.0 35 0.0 0.0 36 0.0 °'

0.0 37 0.0 0.0 38 0.0 0.0 39 0.0 0.0 40 0.0 0.0 41 0.0 0.0 42 0.0 0.0 43 0.0 0.0 44 0.0 0.0 45 0.0 0.0 46 0.0 0.0 47 0.0 o.o 48 0.0 0.0 49 0.0 0.0 50 0.0 0.0 0.0 0.0 0.0 0.0 0.0 o.o 0.0 0.0 (df} = 1 1.693 I Area's Average Level (Aµ)= (N) + (df) x ((Sd)/SQRT(x)]

(Aµ)= BE pCi/gTh (NAT)

GUIDELINE VALUE :

pCi/gTh (NAT)

Acceptable Level:

pCi/gTh (NAT)

TABLE B -1 Factors for Comparision of Survey Data with Guidelines (df) 95%

97.5%

(df) 95%

1 6.314 12.706 19 1.729 2

2.92 4.303 20 1.725 3

2.353 3.182 21 1.721 4

2.132 2.776 22 1.717 5

2.015 2.571 23 1.714 6

1.943 2.447 24 1.711 7

1.895 2.365 25 1.708 8

1.86 2.306 26 1.706 9

1.833 2.262 27 1.703 10 1.812 2.228 28 1.701 11 1.796 2.201 29 1.699 12 1.782 2.179 30 1.697 13 1.771 2.16 40 1.684 14 1.761 2.145 60 1.671 15 1.753 2.131 120 1.658 16 1.746 2.12 400 1.649 17 1.74 2.11 Infinite 1.645 18 1.734 2.101 For values of Degrees of Freedom not listed:

Interpolate between the listed values.

40 is (BJ I 1.684 I 30 is (A)

I 1.697 I (df) high value(Z)

(df) low value(Y)

Desired value(df) (X) 33 is calculated as follow:

EXP[( (Ln(B)-Ln(A}) + (Z-Y)) (X-Y) + Ln(A)]

The (df) value for (X) I 33 i 1.693 i 95%

97.5%

2.093 2.086 2.08 2.074 2.069 2.064 2.06 2.056 2.052 2.048 2.045 2.042 2.021 2

1.98 1.966 1.96 95%

95% I I

0.0 o.o 0.0 0.0 0.0 0.0 PERFORMED BY:_"ttJ~~~*C==,.<**-'-~~'----

REVIEWED BY:_....,~:;_

  • ----=,.'-':-a,,.,.._......._.,,..,__

DATE:

7-2--f-7 7 DATE: ?-.;1.-/-99 40.4 4.7 Sum(n) sum(n-N)2 PAGE 1 OF 1 a:\\guthdpcp

Tuesday, September 14, 1999 LN GRID NUMBER 1

390 E -

490 2

390 E -

540 3

390 E -

590 4

390 E -

640 5

390 E -

762 6

395 E -

640 7

400 E -

640 8

405 E -

640 9

410 E -

640 10 415 E -

640 11 420 E -

640 12 425 E -

640 13 430 E -

640 14 435 E -

640 15 440 E -

480 16 440 E -

530 17 440 E -

580 18 440 E -

630 19 440 E -

640 20 440 E -

769 N

N N

N N

N N

N N

N N

N N

N N

N N

N N

N CIMARRON CORPORATION CIMARRON FACILITY Sub,Area "G" Unaffected Surface Soil Samples 3"

MICRO DETECT R'

C.P.M.

SURF 7830 8

6434 7

6402 7

8418 g

7756 11 8726 10 8400 9

9332 10 9652 10 9428 10 9844 10 9868 10 10050 11 9934 10 9368 9

9338 10 9982 9

7260 8

10040 11 8684 12 MICRO R'

1 METER 8

7 7

g 11 9

9 9

9 10 10 11 10 10 8

8 9

8 10 12 INSTRUMENTS:

RESULTS IN:

LUDLUM MICRO 'R' METER* MODEL 19 SIN 111299 LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR BACKGROUND NOT SUBTRACTED PAGE 1 FILE:GUSS C:\\OFFICE\\QPW\\AREA-G\\GUSS. WB2

µR/hr CPM pCi/g DATE* 4/23/98 0-6" Sample Total-U Th (Nat) 5.9 1.1 7.1 0.9 4.6 0.8 5.5 1

5.5 0.5 7.9 1.6 4.5 0.9 10 1.2 8

1.1 10 1

4.6 1.3 4

1.3 3.3 1.4 6.6 1.2 7.3 1.5 4.7 1.8 5.2 1.5 6.2 1.3 7.4 1.3 6.3

0.7 BACKGROUND

MDA 9

2 7800 NIA Total U 4

10 Th(Nat) 1.5 1

DATE:

9'-!J-99

Tuesday, September 14, 1999 LN GRID NUMBER 1

445 E

640 2

450 E

640 3

455 E

640 4

460 E

640 5

465 E

645 6

470 E

650 7

475 E

655 8

480 E

655 9

485 E

660 10 490 E

490 11 490 E

540 12 490 E

665 13 490 E

775 14 495 E

670 15 500 E

675 16 505 E

675 17 510 E

680 18 515 E

680 19 520 E

680 20 525 E

680 N

N N

N N

N N

N N

N N

N N

N N

N N

N N

N CIMARRON CORPORA TJON CIMARRON FACILITY Sub-Area "G" Unaffected Surface Soil Samples 3"

MICRO DETECT R'

C.P.M.

SURF 9842 10 9694 10 9704 10 9612 11 9490 10 9582 10 9814 11 10384 10 10368 10 7848 9

6632 6

10210 10 8150 12 10072 10 10212 10 10380 10 9934 10 9484 8

7650 9

7920 9

MICRO R'

1 METER 10 9

10 10 9

10 10 11 11 9

6 10 12 10 9

10 11 9

9 8

INSTRUMENTS:

RESULTS IN:

LUDLUM MICRO 'R' METER - MODEL 19 S/N 111299 LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR BACKGROUND NOT SUBTRACTED PAGE2

.FILE:GUSS C:\\OFF!CE\\QPWAREA-G\\GUSS. WB2

µR/hr CPM pCi/g DATE* 4/23/98 0-6" Sample Total-U Th (Nat) 6.2 1.1 10.5 0.8 7.8 0.9 10.7 0.6 9.7 0.8 6.5 1

5.7 1.3 7

1.2 6.8 1.3 5.3 1.3 6.8 1.3 4.5 1.5 4.2 0.7 7.8 1.1 4.5 1.4 5.2 0.9 5.6 1.2 5.3 0.9 4.4 1

5.7 0.8 BACKGROUN MDA 9

2 7800 N/A Total U 4

10 Th(Nat) 1.5 1

DATE: 9,r 'f-'19

Tuesday, October 19, 1999 LN GRID NUMBER 1

530 E

680 N

2 535 E

680 N

3 540 E

680 N

4 540 E

685 N

5 540 E

690 N

6 540 E

695 N

7 540 E

700 N

8 540 E

705 N

9 540 E

710 N

10 540 E

715 N

11 540 E

720 N

12 540 E

725 N

13 540 E

730 N

14 540 E

735 N

15 540 E

740 N

16 540 E

745 N

17 540 E

750 N

18 540 E

783 N

19 590 E

630 N

20 590 E

' 680 N

CIMARRON CORPORATION CIMARRON FACILITY Sub-Area "G" Unaffected Surface Soil Samples 3"

MICRO DETECT R'

C.P.M.

SURF 8408 8

9028 9

8882 14 8630 12 8876 13 8592 12 8748 14 8916 14 8942 13 8836 12 8570 13 8534 13 8674 14 8582 13 8626 13 8688 13 8558 14 8444 13 9502 9

7390 7

MICRO R'

1 METER 8

9 14 13 13 13 13 14 14 13 12 13 13 12 14 13 13 12 9

7 DATE* 4/23/98 0-6" Sample Total-U Th (Nat) 5.3 0.8 3.9 1.1 5

1.4 6.7 1.3 7

1.2 5.8 0.9 6.1 1

5.3 1.1 6.2 1.1 7.4 1.1 6

0.9 10.4 1.1 8.6 0.8 8.2 1.1 11.4 1.1 10.7 1.3 8.8 1.1 7.1 0.9 7.4 1.8 4

1.1 INSTRUMENTS

RESULTS IN: BACKGROUND MDA LUDLUM MICRO 'R' METER - MODEL 19 SIN 111299 LUDLUM 2221, UNSHIELDED 3" X 1/2" Na! DETECTOR SIN 97264 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR CKGROUND NOT SUBTRACTED GE 3 LE: GUSS C:\\OFFICE\\QPW\\AREA-G\\GUSS.WB2

µR/hr CPM pCilg 9

7800 Total U 4

Th(Nat) 1.5 2

NIA 10 1

DATE:

?-IY-9?

Tuesday, September 14, 1999 LN GRID NUMBER 1

590 E -

730 2

590 E -

760 3

590 E -

788 4

640 E -

620 5

640 E -

670 6

640 E -

720 7

640 E -

770 8

640 E -

780 9

640 E -

796 10 690 E

610 11 690 E -

660 12 690 E -

710 13 690 E -

760 14 690 E -

790 15 690 E -

803 16 740 E -

630 17 740 E -

680 18 740 E

730 19 740 E -

780 20 740 E -

800 INSTRUMENTS:

N N

N N

N N

N N

N N

N N

N N

N N

N N

N N

CIMARRON CORPORATION CIMARRON FACILITY Sub-Area "G" Unaffected Surface Soil Samples 3"

MICRO MICRO DETECT R'

R' C.P.M.

SURF 1 METER 10546 11 10 9880 12 12 9006 12 12 9280 9

9 8486 8

8 7210 8

7 9744 11 10 8912 12 13 8554 11 12 9215 8

8 8430 8

8 8546 9

7 8200 9

7 7842 11 11 8420 11 11 7732 7

7 3466 6

6 8364 9

8 7970 8

8 7238 10 10 RESULTS IN:

LUDLUM MICRO 'R' METER - MODEL 19 S/N 111299

µR/hr LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR BACKGROUND NOT SUBTRACTED PAGE4 FILE: GUSS C:\\OFFICE\\QPW\\AREA-G\\GUSS.WB2 CPM pCi/g DATE* 4/23/98 0-6" Sample Total-U Th (Nat) 11.1 1.8 6.9 1.3 5.1 1.2 7.1 1.7 6.7 1.4 3.2 1

8.7 1.8 6.3 1.2 5.4 0.9 8.6 1.4 6.5 1.6 5.5 1.3 4.1 1.1 5.7 1.1 3

1.1 4.7 1

1.8 0.5 6.2 1.4 7.1 1.4 6

1 BACKGROUND MDA 9

2 7800 N/A Total U 4

10 Th(Nat) 1.5 1

Tuesday, September 14, 1999 LN GRID NUMBER 1

740 E -

810 2

790 E -

690 3

790 E

740 4

790 E

790 5

790 E

814 6

790 E -

840 7

790 E

890 8

790 E.

940 9

790 E -

990 10 816 E -

810 11 840 E

670 12 840 E

720 13 840 E -

770 14 840 E -

870 15 840 E -

920 16 840 E.

1010 17 890 E

620 18 890 E

670 19 890 E

770 20 890 E

" 820 N

N N

N N

N N

N N

N N

N N

N N

N N

N N

N CIMARRON CORPORATION CIMARRON FACILITY Sub-Area "G" Unaffected Surface Soil Samples 3"

MICRO DETECT R'

C.P.M.

SURF 7524 10 8438 g

8488 8

7486 8

7150 11 9196 9

8452 8

7918 8

8636 9

5510 g

6574 7

8726 8

9006 9

7632 8

9176 8

7614 8

5620 6

7636 10 8868 10 8478 8

MICRO R'

1 METER 10 8

7 7

10 9

8 9

9 9

7 7

9 8

8 7

6 8

9 8

INSTRUMENTS:

RESULTS IN:

LUDLUM MICRO 'R' METER - MODEL 19 S/N 111299 LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR S/N 97264 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR BACKGROUND NOT SUBTRACTED PAGES FILE: GUSS C:\\OFFICE\\QPW\\AREA-G\\GUSS.WB2

µR/hr CPM pCi/g DA TE: 4/23/98 0-6" Sample Total-U Th (Nat) 2.4 0.8 6.2 1.6 6.6 1.5 5

1.4 4.2 1.1 6.1 1.6 7.1 1.3 7.9 1.2 6.5 1

2 0.6 5.2 0.9 6.5 1.2 6.7 1.1 5.2 1.1 7

1.4 7

0.8 10.7 1.4 4.6 1.5 3.9 1.3 6.5

0.9 BACKGROUND

MDA 9

2 7800 N/A Total U 4

10 Th(Nat) 1.5 1

DATE: 7-J y-77

Tuesday, September 14, 1999 LN GRID NUMBER 1

890 E

870 2

890 E

920 3

890 E

1020 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 N

N N

CIMARRON CORPORATION CIMARRON FACILITY Sub-Area "G" Unaffected Surface Soil Samples 3"

MICRO DETECT R'

C.P.M.

SURF 7576 8

8362 8

8716 8

MICRO R'

1 METER 8

8 8

INSTRUMENTS:

RESULTS IN:

LUDLUM MICRO 'R' METER - MODEL 19 S/N111299 LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR S/N 97264 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR BACKGROUND NOT SUBTRACTED PAGES FILE: GUSS C:\\OFFICE\\QPWAREA-G\\GUSS.WB2

µR/hr CPM pCi/g DATE* 4/23/98 0-6" Sample Total-U Th (Nat) 5.6 1.3 6.8 1.5 7.4 1

BACKGROUND MDA 9

2 7800 NIA Total U 4

10 Th(Nat) 1.5 1

DATE: '7-/ Cj-77

250 300 350 1000 950 900 850 800 750 700 IL 650 400 450 500 SUB-AREA G 550

+8.8 10.7 *

+11.4 8.2+

. 0 7.4+

. 2 5.J+

'.1-**

5.ll+

  • 7.0 a.!i.6 H 5.1' *. 0 4 5 a.T * * "'+
  • 3*9*-'-

7_8 + t

  • 5.3 5.7
  • 6.ll *4 5 5.7 6.5. + + 7.0 s5.4~.e~o+4.&.J-.J.7-.* o.s10 *. 1 9 10.0 10 0 4.0 66 &J 7 8 2

600 650 I 1.

.,.o 6. *

/

/

/

11.

600

. -* -- --.. *~

  • 4 8 5.2.

r------------ -,

I I.

I I

, I I

  • I I

I I

550 s.s. ' I I

I I

1 URANIUM WASTE I

I POND #2 I

I I

  • 7.1 f

I

I I

., ' i-- *- --*-*---************ **-***- *-* -**1 **-. **-*-*-*

I

~u. ; I 1

500 --- - ** ***--**--*--*-- - ** --*-*-***** *-.... **-

5.

7 J.

/

I I

I I

I I

I I

I I

I i i 450

____.J 250 300 400 450 500 550 600 650 700 5.5

  • ss.
  • -----------~- --*

700 750 800 850 900 950

)

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1 6.7.

J. +

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(.

  • --. ----r*-**-.

8.2.

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  • 4.6

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REV.

DESCRIPTION BY: Cl<'D B'1: N'P'D 81':

~1[

1000 1050 1100 1150 lOOC 950 900 850 800

.,.,.,,-_,./

1000 1050 1100 1150

~

SAMPlfS ARE IN PICO-CURIES PER GRAM URANIUM (pCi/g U).

CIMARRON GAMMA SPEC SOIL COUNTER SITE SOIL BACKGROUND OF 4 pCi/g U, NOT SUBTRACTED.

R+

HIT ROCK, NO SN.4PLE TAKEN 50 0

50~

j 1~

SCALE IN M E T E RS **

@3 CIMARRON CORPORATION CIMARRON FACILITY ORWN.

BY PHASE II -

SUB-AREA G UNAFFECTED AREA DATA SOIL SURFACE SAMPLE RESULTS JE

~TE SCA!£ 7 /29/99 AS SHOWN 750 700 REV.

0 1---+----------------+--:::-+-::-+---t:-:-:-c:--::-iJOO NO.

0 DRAWING ISSUED.

JE WR JL 10 18 99 ORAWNl NO.

99P0SGUNSS-O

.*. \\CIM\\SUBAREAG99\\UNAFITCTE0\\99POUGSS

Monday, September 13, 1999 PHASE II, SUB-AREA "G" - SURFACE UNAFFECTED AREA CIMARRON SOIL COUNTER TOTAL URANIUM SOIL SAMPLE RESULTS SITE BACKGROUND OF 4 pCi/g NOT SUBTRACTED SEPTEMBER 13, 1999 URANIUM SAMPLE DATA FREQUENCY DISTRIBUTION C/J 30

~ 25 0..

~ 20 Cl)

LL 15 0

o:: 10 w

co

~ 5

J z 0

2 3

4 5

6 7

8 9

10. 11 12 pCi/g NUMBER OF SAMPLES 103 AVERAGE SAMPLE 6.3 MINIMUM SAMPLE 1.8 MAXIMUM SAMPLE 11.4 STANDARD DEVIATION 2

A:\\98GUSSGP.WB2

Monday, September 13, 1999 PHASE II, SUB-AREA "G" - SURFACE UNAFFECTED AREA CIMARRON SOIL COUNTER TOTAL THORIUM SOIL SAMPLE RESULTS SITE BACKGROUND OF 1.5 pCi/g NOT SUBTRACTED SEPTEMBER 13, 1999 THORIUM SAMPLE RESULTS FREQUENCY DISTRIBUTION 35 ~~~~~~~~~~~~~~

en

~ 3 0 --i----------+-

a..

E 2 5 -;-------+-

<(

en 20 +--+-

u.

0 1 5 --t-----+-

0:::

~ 10 +--+-

~ 5 -+-----+-

z O +--'-+-

0.5 1

1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 pCi/g NUMBER OF SAMPLES 103 AVERAGE SAMPLE 1.2 MINIMUM SAMPLE 0.5 MAXIMUM SAMPLE 1.8 STANDARD DEVIATION 0.3 A:\\98GUTHGP.WB2

Monday, September 13, 1999 PHASE II, SUB-AREA "G" - SURFACE UNAFFECTED AREA MICRO-R METER READINGS AT SURFACE LUDLUM MODEL 19, S/N 111299 RESULTS IN µR/hr SEPTEMBER 13, 1999 MICRO 'R' READINGS FREQUENCY DISTRIBUTION

(/) 25 ------,-~---- ~-~

(9 z 20 -----;-

0

<(

~15 ---

LL.

-- ---------i---,

0 10 -,--: -

--+-

0:::

UJ (l) 5 :

~ --

> z O '

6 7

8 9

10 - 11 12 13 14

µR/hr NUMBER OF SAMPLES 103 AVERAGE SAMPLE 10 MINIMUM SAMPLE 6

MAXIMUM SAMPLE 14 STANDARD DEVIATION 2

A:\\98GUURGP.WB2

Tuesday, October 19, 1999 PHASE II, SUB-AREA "G" - SURFACE UNAFFECTED AREA MICRO-R METER READINGS AT 1 METER ABOVE SURFACE LUDLUM MODEL 19, S/N 111299 RESULTS IN µR/hr SEPTEMBER 13, 1999 MICRO 'R' READINGS FREQUENCY DISTRIBUTION cn 25 ~ ---------,--

(9 z 20 +------i---

0

<(

~ 1 5 +-----+-------"--

LL I

O 10 +---+-

a:'.

w i-------i-

~ 5 -"--

" --------+-

z O ;

6 7

8 I

9 10 - 11 12 13 14

µR/hr NUMBER OF SAMPLES 103 AVERAGE SAMPLE 10 MINIMUM SAMPLE 6

MAXIMUM SAMPLE 14 STANDARD DEVIATION 2

C:\\OFFICE\\QPWAREA-G\\98GUURGP.W82

Monday, September 13, 1999 PHASE II, SUB-AREA "G" - SURFACE UNAFFECTED AREA GROSS GAMMA READINGS IN CPM LUDLUM MODEL 2221, 5/N 97264 BACKGROUND AVERAGES: 7800 SEPTEMBER 13,1999 3" Nal DETECTOR READINGS FREQUENCY DISTRIBUTION Cl) 25 -

(..9 z 20 ---+--~---~-

0

<{

~ 15 -~----'-----.---------r-lL 0 10 ----+---+

0:::

~ 5 --~-

~

> z A:\\98GU3DGP.WB2 NUMBER OF SAMPLES AVERAGE SAMPLE MINIMUM SAMPLE MAXIMUM SAMPLE STANDARD DEVIATION 103 8611 3466 10546 1150

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AREA'G'UNAFFECTED-SURFACE Number n

1 5.9 2

7.1 3

4.6 4

5.5 5

5.5 6

7.9 7

4.5 8

10 9

8 10 10 11 4.6 12 4

13 3.3 14 6.6 n = pCi/g TOTAL U (n-N)

(n-N)2

-0.4 0.2 0.8 0.6

-1.7 3.0

-0.8 0.7

-0.8 0.7 1.6 2.4

-1.8 3.4 3.7 13.4 1.7 2.8 3.7 13.4

-1.7 3.0

-2.3 5.5

-3.0 9.2 0.3 0.1 No. of Samples (x) :

103 COUNT TIME: 5 MINUTES Sample Mean (N) = Sum(n) + (x)

Sample Mean (N) : I 6.34 I Standard Deviation (Sd) = SQRT [(n-N)' + (x - 1 )]

Standard Deviation: ~

2 Std Deviations: ~

15 7.3 1.0 0.9 Degree of Freedom(df).= (x) - 1 Data listed on Table B-1 16 4.7

-1.6 2.7 17 5.2

-1.1 1.3 18 6.2

-0.1 0.0 19 7.4 1.1 1.1 20 6.3

-0.0 0.0 21 6.2

-0.1 0.0 22 10.5 4.2 17.3 23 7.8 1.5 2.1 24 10.7 4.4 19.0 25 9.7 3.4 11.3 26 6.5 0.2 0.0 27 5.7

-0.6 0.4 28 7

0.7 0.4 29 6.8 0.5 0.2 30 5.3

-1.0 1.1 31 6.8 0.5 0.2 32 4.5

-1.8 3.4 33 4.2

-2.1 4.6 34 7.8

  • 1.5 2.1 35 4.5

-1.8 3.4 36 5.2

-1.1 *.

1.3 37 5.6

-0.7 0.5 38 5.3

-1.0 1.1 39 4.4

-1.9 3.8 40 5.7

-0.6 0.4 41 5.3

-1.0 1.1 42 3.9

-2.4 5.9 43 5

-1.3 1.8 44 6.7 0.4 0.1 45 7

0.7 0.4 46 5.8

-0.5 0.3 47 6.1

-0.2 0.1 48 5.3

-1.0 1.1 49 6.2

-0.1 0.0 50 7.4 1.1 1.1 319.6 246.5 19.8 1.9 0.0 0.0 0.0 0.0 (df) = 1 1.662 1 Area's Average Level (Aµ) = (N) + (df) x [(Sd)fSQRT(x)J (All)= @E pCi/gU TOTAL U GUlDELINEVALUE:

pCi/gU TOTAL u Acceptable Level:

pCi/gU TOTAL U TABLE B-1 Factors for Comparision of Survey Data with Guidelines (df) 95%

97.5%

(df) 95o/.

1 6.314 12.706 19 1.729 2

2.92 4.303 20 1.725 3

2.353 3.182 21 1.721 4

2.132 2.776 22 1.717 5

2.015 2.571 23 1.714 6

1.943 2.447 24 1.711 7

1.895 2.365 25 1.708 8

1.86 2.306 26 1.706 9

1.833 2.262 27 1.703 10 1.812 2.228 28 1.701 11 1.796 2.201 29 1.699 12 1.782 2.179 30 1.697 13 1.771 2.16 40 1.684 14 1.761 2.145 60 1.671 15 1.753 2.131 120 1.658 16 1.746 2.12 400 1.649 17 1.74 2.11 Infinite 1.645 18 1.734 2.101 For values of Degrees of Freedom not listed:

Interpolate between the listed values.

120 is (B)

I 1.658 I 60 is (A)

I 1.671 I (df) high value(Z)

(df) low value(Y)

Desired value(df) (X) 102 Is calculated as follow:

EXP[( {Ln(B)-Ln(A)) + (Z-Y)) (X-Y) + Ln(A)]

The (df) value for

)

102 1.662 95%

97.5%

2.093 2.086 2.08 2.074 2.069 2.064 2.06 2.056 2.052 2.048 2.045 2.042 2.021 2

1.98 1.966 1.96 95%

95% I I

0.0 0.0 0.0 0.0 PERFORMED BY.

DATE: 1-/ ~:44 0.0 0.0 652.9 397.5 DATE: 9-/'-f-79 REVIEWED BY: 1.J _ {J. ~

Sum(n)

Sum(n-N)'

PAGE 1 OF 2 A:IOUSSCOMP

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDEN AREA 'G'UNAFFECTED-SURFACE n = pCi/g TOTAL u n = pCi/g TOTAL Number n

(n-Nl (n*N)1 Number n

(n-N)

(n-N)2 51 6

0.01 0.00 101 5.6

-0.39 0.15 52 10.4 4.41 19.45 102 6.8 0.81 0.66 53 8.6 2.61 6.81 103 7.4 1.41 1.99 54 8.2 2.21 4.88 104 0.00 0.00 55 11.4 5.41 29.27 105 0.00 0.00 56 10.7 4.71 22.18 106 0.00 0.00 57 8.8 2.81 7.90 107 0.00 0.00 58 7.1 1.11 1.23 108 0.00 0.00 59 7.4 1.41 1.99 109 0.00 0.00 60 4

-1.99 3.96 110 0.00 0.00 61 11.1 5.11 26.11 111 0.00 0.00 62 6.9 0.91 0.83 112 0.00 0.00 63 5.1

-0.89 0.79 113 0.00 0.00 64 7.1 1.11 1.23 114 0.00 0.00 65 6.7 0.71 0.50 115 0.00 0.00 66 3.2

-2.79 7.78 116 0.00 0.00 67 8.7 2.71 7.34 117 0.00 0.00 68 6.3 0.31 0.10 118 0.00 0.00 69 5.4

-0.59 0.35 119:

0.00 0.00 70 8.6 2.61 6.81 120 0.00 0.00 71 6.5 0.51 0.26 121 0.00 0.00 72 5.5

-0.49 0.24 122 0.00 0.00 73 4.1

-1.89 3.57 123 0.00 0.00 74 5.7

-0.29 0.08 124 0.00 0.00 75 3

-2.99 8.94 125:

0.00 0.00 76 4.7

-1.29 1.66 126 0.00 0.00 77 1.8

-4.19 17.56 127 0.00 0.00 78 6.2 0.21 0.04 128 0.00 0.00 79 7.1 1.11 1.23 129:

0.00 0.00 80 6

0.01 0.00 130 0.00 0.00 81 2.4

. -3.59 12.89 131,

0.00 0.00 82 6.2 0.21 0.04 132i 0.00 0.00 83 6.6 0.61 0.37 133!

0.00 0.00 84 5

-0.99 0.98 134:

0.00 0.00 85 4.2

-1.79 3.20 135 0.00 0.00 86 6.1 0.11 0.01 136' 0.00 0.00 87 7.1 1.11 1.23 137 0.00 0.00 88 7.9 1.91 3.65 138 0.00 0.00 89 6.5 0.51 0.26 139 0.00 0.00 90 2

-3.99 15.92 140 0.00 0.00 91 5.2

-0.79 0.62 141 0.00 0.00 92 6.5 0.51 0.26 142 0.00 0.00 93 6.7 0.71 0.50 143 0.00 0.00 94 5.2

-0.79 0.62 144 0.00 0.00 95 7

1.01 1.02 145 0.00 0.00 96 7

1.01 1.02 146 0.00 0.00 97 10.7 4.71 22.18 147 0.00 0.00 98 4.6

-1.39 1.93 148 0.00 0.00 99 3.9

-2.09 4.37 149 0.00 0.00 100 6.5 0.51 0.26 150 0.00 0.00 319.6 254.5 19.8 2.8 Sum(n)

Sum(n-N)2 Sum(n)

Sum(n*N)'

PAGE 2 OF 2 A:\\GUSSCOMP

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AREA'G'UNAFFECTED-SURFACE n = pCi/g Th (NAT}

Number n

(n-N)

(n-N)'

1 1.1

-0.1 0.0 2

0.9

-0.3 0.1 3

0.8

-0.4 0.1 4

1

-0.2 0.0 5

0.5

-0.7 0.4 6

1.6 0.4 0.2 7

0.9

-0.3 0.1 8

1.2 0.0 0.0 9

1.1

-0.1 0.0 10 1

-0.2 0.0 11 1.3 0.1 0.0 12 1.3 0.1 0.0 13 1.4 0.2 0.1 14 1.2 0.0 0.0 15 1.5 0.3 0.1 16 1.8 0.6 0.4 17 1.5 0.3 0.1 18 1.3 0.1 0.0 19 1.3 0.1 0.0 20 0.7

-0.5 0.2 21 1.1

-0.1 0.0 22 0.8

-0.4 0.1 23 0.9

-0.3 0.1 24 0.6

-0.6 0.3 25 0.8

-0.4 0.1 26 1

-0.2 o.o 27 1.3 0.1 0.0 28 1.2 0.0 0.0 29 1.3 0.1 o.o 30 1.3 0.1 0.0 31 1.3 0.1 0.0 32 1.5 0.3 0.1 33 0.7

-0.5 0.2 34 1.1

'-0.1 0.0 35 1.4 0.2 0.1 36 0.9

-0.3\\

0.1 37 1.2 0.0 0.0 38 0.9

-0.3 0.1 39 1

-0.2 0.0 40 0.8

-0.4 0.1 41 0.8

-0.4 0.1 42 1.1

-0.1 0.0 43 1.4 0.2 0.1 44 1.3 0.1 0.0 45 1.2 0.0 0.0 46 0.9

-0.3 0.1 47 1

-0.2 0.0 48 1.1

-0.1 o.o 49 1.1

-0.1 0.0 50 1.1

-0.1 0.0 60.1 4.5 3.8 0.2 0.0 0.0 0.0 0.0 No. of Samples (x) :

103 COUNT TIME: 5 MINUTES Sample Meari (N) = Sum(n) + (x)

SampleMean(N):

11.16 I Standard Deviation (Sd) = SQRT [(n-N)' + (x -1)]

Standard Deviation: ~

2 Std Deviations: [))[]

Degree of Freedom(df).= (x) - 1 Data listed on Table B-1 (df) =

I 1.662 1 Area's Average Level (Aµ)= (N) + (df) x [(Sd)/SQRT(x)]

(Aµ) = BE pCi/gTh (NAT)

GUIDELINE VALUE:

pCi/gTh (NAT)

Acceptable Level:

pCi/gTh (NAT)

TABLE B-1 Factors for Comparision of Survey Data with Guidelines (df) 95%

97.5'Yo (df) 95%

97.5%

1 6.314 12.706 19 1.729 2.093 2

2.92 4.303 20 1.725 2.086 3

2.353 3.182 21 1.721 2.08 4

2.132 2.776 22 1.717 2.074 5

2.015 2.571 23 1.714 2.069 6

1.943 2.447 24 1.711 2.064 7

1.895 2.365 25 1.708 2.06 8

1.86 2.306 26 1.706 2.056 9

1.833 2.262 27 1.703 2.052 10 1.812 2.228 28 1.701 2.048 11 1.796 2.201 29 1.699 2.045 12 1.782 2.179 30 1.697 2.042 13 1.771 2.16 40 1.684 2.021 14 1.761 2.145 60 1.671 2

15 1.753 2.131 120 1.658 1.98 16 1.746 2.12 400 1.649 1.966 17 1.74 2.11 Infinite 1.645 1.96 18 1.734 2.101 For values of Degrees of Freedom not listed:

Interpolate between thr-e_lis_t_ed_v_a,...lu_e_s. __ -r---::--.-----,

(df) high value(Z) 120 is (B) 1.658 95%

(df) low value(Y) 60 is (A) 1.671 95%

102 is calculated as follow:

0.0 0.0 0.0 0.0 0.0 0.0 DA TE:0v /){--1~

DATE: 9-;y. 'j<j 119.4 8.3 Sum(n)

Sum(n-N)'

PAGE 1 OF 2

.a:\\guthoomp

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AREA'G'UNAFFECTED-SURFACE n = pCi/g Th (NAT)

  • n = pCi/g Th (NAT)

Number n

(n-N)

(n-N)2 Number n

(n-N)

(n-N)2 51 0.9

-0.20 0.04 101 1.3 0.20 0.04 52 1.1 0.00 0.00 102 1.5 0.40 0.16 53 0.8

-0.30 0.09 103 1

-0.10 0.01 54 1.1 0.00 0.00 104 0.00 0.00 55 1.1 0.00 0.00 105 0.00 0.00 56 1.3 0.20 0.04 106 0.00 0.00 57 1.1 0.00 0.00 107 0.00 0.00 58 0.9

-0.20 0.04 108 0.00 0.00 59 1.8 0.70 0.50 109 0.00 0.00 60 1.1 0.00 0.00 110 0.00 0.00 61 1.8 0.70 0.50 111 0.00 0.00 62 1.3 0.20 0.04 112 0.00 0.00 63 1.2 0.10 0.01 113 0.00 0.00 64 1.7 0.60 0.37 114 0.00 0.00 65 1.4 0.30 0.09 115 0.00 0.00 66 1

-0.10 0.01 116 0.00 0.00 67 1.8 0.70 0.50 117.

0.00 0.00 68 1.2 0.10 0.01 118 0.00 0.00 69 0.9

-0.20 0.04 119 0.00 0.00 70 1.4 0.30 0.09 120 0.00 0.00 71 1.6 0.50 0.25 121 0.00 0.00 72 1.3 0.20 0.04 122 0.00 0.00 73 1.1 0.00 0.00 123 0.00 0.00 74 1.1 0.00 0.00 124 0.00 0.00 75 1.1 0.00 0.00 125 0.00 0.00 76 1

-0.10 0.01 126 0.00 0.00 17 0.5

-0.60 0.35 127 0.00 0.00 78 1.4 0.30 0.09 128 0.00 0.00 79 1.4 0.30 0.09 129; 0.00 0.00 80 1

-0.10 0.01 130; 0.00 0.00 81 0.8

' -0.30 0.09 131!

0.00 0.00 82 1.6 0.50 0.25

132, 0.00 0.00 83 1.5 0.40 0.16 133i 0.00 0.00 84 1.4 0.30 0.09 134 0.00 0.00 85 1.1 0.00 0.00 1351 0.00 0.00 86 1.6 0.50 0.25 136i 0.00 0.00 87 1.3 0.20 0.04 137 0.00 0.00 88 1.2 0.10 0.01 138 0.00 0.00 89 1

-0.10 0.01 139 0.00 0.00 90 0.6

-0.50 0.25 140 0.00 0.00 91 0.9

-0.20 0.04 141 0.00 0.00 92 1.2 0.10 0.01 142 0.00 0.00 93 1.1 0.00 0.00 143 0.00 0.00 94 1.1 0.00 0.00 144 0.00 0.00 95 1.4 0.30 0.09 145 0.00 0.00 96 0.8

-0.30 0.09 146 0.00 0.00 97 1.4 0.30 0.09 147 0.00 0.00 98 1.5 0.40 0.16 148 0.00 0.00 99 1.3 0.20 0.04 149 0.00 0.00 100 0.9

-0.20 0.04 150 0.00 0.00 60.1 4.9 3.8 0.2 Sum(n)

Sum(n-N)2 Sum(n)

Sum(n*N)2 PAGE 2 OF 2 a:\\gU1hccmp

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