ML19363A002

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Cimarron Corp Appendix 2 - Affected Area Roadway
ML19363A002
Person / Time
Site: 07000925
Issue date: 07/21/1999
From:
Cimarron Corp
To:
Office of Nuclear Material Safety and Safeguards
Shared Package
ML19365A023 List:
References
Download: ML19363A002 (55)
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Text

{{#Wiki_filter:APPENDIX 2 - AFFECTED AREA ROADWAY

760 SAMPLE ID LOCATIONS 730 1 2 720 3 4 710 5 6 700 *-...... *-.... - 7 8 9 690 10 11 680 12 670 660 650 640 630 600 590 580 570 560 550 530 520 510 500 480 I I 1 ; +. I I / / I J I 4 0 soo 50 5 0 5 50 5oo 60 6 0 6 0 6 0 6 0 670 6 0 700 7 0 7 0 70 800 8 0 8 0 80 900 9 0 9 0 URANIUM URANIUM URANIUM URANIUM URANIUM 0 - 6" 6" - 1' 11 2' 2' - 3' 31 4' EASTING NORTHING pCi/q pCi/q pCi/q pCi/q pCi/ q \\ 460 500 520 533 540 560 580 600 620 695 782 879 2 549 6 7 7 8 10 602 6 8 5 12 7 602 6 12 6 9 ROCK 593 7 11 8 8 6 602 5 4 10 6 6 602 8 6 10 4 4 / 602 5 9 8 7 5

  • W" S,-

,H -*~ / 602 5 12 10 8 7 / 622 6 10 9 5 7 678 5 8 7 9 6 630 6 7 5 5 10 607 6 ROCK ROCK ROCK ROCK 10 --- - + / , /ROAD \\ / I I I g l I+ '

  • 11 I I SAMPLE LOCATIONS l -

/ /- 3 7 8 + + + ____ +, *-----. ---------------------------------------------------------... --- \\ _ / r------ ------ - ------------, I I I'

I

. I I I: 1 I; I Ii I I: I I! . 1 URANIUM WASTE POND #2 1 I I I I I I I I I I I I I I \\_ SUB-AREA G BOU~OARY RESER'IOIR f 3 30 0 SCALE IN 30 "- i ~ ORTI-1' METERS 4l1Ji.

\\

NOTES: CIMARRON CORPORATION I 'I SAMPLES ARE IN PICO-CURIES PER GRAM URN-IIUM (pCi/g U).

*\\ **-

. ---- * ---- -** ***-. ----- -*---.. --~ \\- Ct.WlRONCAMMASPECSOILCOUNTER PHA~l~~rR_?NsJ::1~1~ G \\ SITE SOIL BACKGROUND OF 4 pCi/g U, NOT SUBTRACTED. CENTERLINE ROADWAY DATA 1 I DEPTH SOIL SAMPLE RESULTS I

I ORIN.

DATE SCALE I 1-R_EV...,. _____ ocsc R1PTI_ON ______ -+-_BY...,:1-CX-'0-6Y-+: N'P_*o_BY.,..: -°"-n:~BY JE 8/ 2/99 AS SHOWN I t-=---+---------"----.....-----t I 1 1 r--+--------------+-=-+----+--+-:-.-IJOB oo. ORA~G HO. 99POSGCRSS-1 REV. 470.._....,._....,.. __ "'T"" __.,........ ~......;l"""'""...,. __...,.. __ "'T"" __ -,----~.....,1"""'""--,.---,----,.---.,...i..--,.......~--..... -....,...--...,........1....---,.......~----.---~--"""-.;;;.0~DRA~W~IN.::.G..:.:IS::;;;S,:;:,:UE.:::D.:..* ---------------.....:J;.:..E...i...:.:.WR:..:....i-J:;.:;L~l-'0..;;18::..;;,:99:.i..... ____..... ___________________..i....;0;;...i 450 460 470 ..ao 490 500 51 0 520 530 540 550 560 570 580 590 600 610 620 630 640 650 660 670 680 690 700 110 ... \\ CIM\\ SU8AREAG99\\ ROAOWA'l\\99PORGSS 660 650 640 630 620 710 700 690 680 670 660 650 640 6.30 620 610 600 590 580 570 560 550 540

Wednesday, July 21, 1999 LN GRID NUMBER 1 480E-585N 2 480E-590N 3 480E-595N 4 480E-600N 5 6 485E-585N 7 485E-590N 8 485E-595N 9 485E-600N 10 11 490E-585N 12 490E-590N 13 490E-595N 490E-600N 15 490E-605N 16 49DE-610N 17 490E-615N 18 490E-620N INSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2 3" MICRO DETECT R' C.P.M. SURF 5616 i6 5578 i7 7174 [8 8516 ~o 7758 i8 5224 6 5714 7 7364 18 I I 7310 is i 7950 [8 5420 16 7318 ,g 8314 ,9 9020 ~o 8354 i9 7692 ig RESULTS IN: LUDLUM MICRO 'R' METER-MODEL 19 - S/N 11129 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 REVIEWED BY: FILE: AGAASURF ~:\\AREA_G\\AFFECTED\\AGAASURF.WB2 ~.a.~ DATE: 02/18/97 MICRO R' 0-6" Sample 1 METER Total-U Th (Nat) 6 8 1 7 10 1 7 7 1 g 11 2 7 6 1 7 8 1 7 10 1 8 8 1 7 4 1 8 6 2 7 5 1 8 5 1 9 6 2 9 3 1 9 6 1 8 7 1 BACKGROUND MDA µR/hr 9 2 CPM 8288 NIA T~alU 4 10 pCi/g Th(Nat) 1.5 0.25 DATE: 7 - )-J - 7f

Wednesday, July 21, 1999 LN GRID NUMBER 1 495E-585N 2 495E-590N 3 495E-595N 4 495E-600N 5 495E-605N 6 495E-610N 7 495E-615N 8 495E-620N 9 10 500E-585N 11 5DOE-590N 500E-595N 500E-600N 14 500E-605N 15 500E-610N 16 500E-615N 17 500E-620N 18 INSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2 3" Mlf:RO DETECT R' C.P.M. SWRF 6928 !7 7204 I i8 6466 i7 6810 '7 8168 ho 8134 I la 7132 9 5982 6 7110 i8 8284 i8 6310 i7 6252 !7 8064 9 8276

g 8872
10 7960 7

RESt!JLTS IN: LUDLUM MICRO 'R' METER - MODEL 19 - SIN 11129 LUDLUM 2221, UNSHIELDED 3" X 112" Nal DETECTOR S/N 97264 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR BACKGROUND NOT SUBTRACTED ~ REVIEWED BY: 'Z.J

  • c.. I FILE: AGAASURF A:\\AREA_G\\AFFECTED\\AGAASURF.WB2 DATE* 02/18/97 MICRO R'

0-6" Sample 1 METER Total-U Th (Nat) 7 6 2 7 4 1 7 6 1 7 8 1 8 6 1 7 4 1 7 8 1 7 7 1 a 9 1 7 5 1 a 7 1 7 5 1 8 6 1 8 6 1 8 4 1 8 5 2 BACKGROUND MDA µR/hr 9 2 CPM 8288 NIA Total U 4 10 pCi/g Th(Nat) 1.5 0.25 DATE: ?-2-r-J9

Wednesday, July 21, 1999 LN GRID NUMBER 1 505E-585N 2 505E-590N 3 505E-595N 4 505E-600N 5 505E-605N 6 505E-610N 7 505E-615N 8 505E-620N 9 10 510E-585N 11 510E-590N 510E-595N 51DE-600N 14 51DE-605N 15 510E-610N 16 51 OE-615N 17 510E-620N 18 INSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2 I 3" Ml~RO DETECT R' C.P.M. SIURF 7158 17 7564

7 6380 j7 5766 16 7886 i8 8396 8

7996

9 8318 i9 7334

!8 7200

7 7370
7 6254 6

7550 8 8534

9 8314

!9 8552 !8 i l RESUIL TS IN: LUDLUM MICRO 'R' METER-MODEL 19 - SIN 11129 LUDLUM 2221, UNSHIELDED 3" X 112" Nal DETECTOR SIN 97264 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR BACKGROUND NOT SUBTRACTED REVIEWED BY: FILE: AGAASURF A:\\AREA_ G\\AFFECTED\\AGAASURF.WB2 DATE: 02/18/97 MICRO R' 0-6" Sample 1 METER Total-U Th (Nat) 8 6 1 7 4 1 6 9 1 6 6 1 7 7 1 7 7 1 8 4 1 8 7 1 8 6 1 7 9 1 8 6 1 7 6 1 7 7 2 8 5 1 8 6 1 9 4 2 BACKGROUND MDA µR/hr 9 2 CPM 8288 NIA Total U 4 10 pCi/g Th(Nat) 1.5 0.25 DATE: ?-l-{-77

Wednesday, July 21, 1999 LN GRID NUMBER 1 515E-585N 2 515E-590N 3 515E-595N 4 515E-600N 5 515E-605N 6 515E-610N 7 515E-615N 8 515E-620N 9 10 520E-590N 11 520E-595N 12 520E-600N 520E-605N 14 520E-610N 15 520E-615N 16 520E-620N 17 18 INSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2 3" Mil CRO DETECT R' C.P.M. SL IRF 7312 8 7460 rr 7158 rr 5848 ~ 7852 8 8282 9 8052 a 8048 0 7324 a 7398 7 6564 t; 7530 B 7658 10 7874 8 8724 9 i RESULTS IN: LUDLUM MICRO 'R' METER-MODEL 19 - SIN 11129 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 &pr~- REVIEWED BY: "l.J ~ q_. FILE: AGAASURF t\\AREA_G\\AFFECTED\\AGAASURF.WB2 DATE* 02/18/97 MICRO R' 0-6" Sample 1 METER Total-U Th (Nat) 8 7 2 7 7 1 8 6 1 6 5 1 9 9 1 8 6 1 8 9 1 8 6 1 7 8 2 7 9 1 7 6 2 8 5 1 8 10 1 8 6 1 8 8 1 BACKGROUND MDA µR/hr 9 2 CPM 8288 NIA Total U 4 10 pCi/g Th{Nat) 1.5 0.25 DATE: -;,-i..-1~r7

Wednesday, July 21, 1999 LN GRID NUMBER 1 525E-590N 2 525E-595N 3 525E-600N 4 525E-605N 5 525E-610N 6 525E-615N 7 525E-620N 8 9 530E-590N 10 530E-595N 11 530E-600N 530E-605N 530E-610N 14 530E-615N 15 530E-620N 16 17 18 INSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY PHASE ll, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2 3" Ml CRO DETECT R' C.P.M. Sl URF 7184 8 7030 i7 7606 8 7690 8 7748 8 7940 9 8478 i8 ' i i 7406 /,8 I 6968 !1 7526 j7 I 7794 8 7526 9 7866 8 8304

a i

i RESULTS IN: LUDLUM MICRO 'R' METER - MODEL 19 - SIN 11129 LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR BACKGROUND NOT SUBTRACTED REVIEWED BY:

fJ.G..,1ry&:;<;;;::

FILE: AGAASU RF l\\:\\AREA_G\\AFFECTED\\AGAASURF.WB2 DATE 02/18/97 MICRO R' 0-6" Sample 1 METER Tota!-U Th (Nat) 8 10 1 7 6 2 7 7 1 7 12 1 7 8 1 8 11 1 8 8 1 8 8 1 7 6 2 7 9 1 8 6 2 8 4 2 8 7 1 7 4 2 BACKGROUND MDA µR/hr 9 2 CPM 8288 NIA Total U 4 10 pCi/~ Th(Nat) 1.5 0.25 DATE: ?-2,J-7 z

Wednesday, July 21, 1999 CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2 DATE: 02/18/97 3" Ml C:RO MICRO LN GRID DETECT R' R' 0-6" Sample NUMBER C.P.M. Sl URF 1 METER Total-U Th (Nat) 1 535E-590N 6196 7 7 8 1 2 535E-595N 7538 is 8 7 2 3 535E-600N 7878 la 8 8 1 4 535E-605N 7754 !9 8 6 1 5 535E-610N 7566

a 8

8 1 6 535E-615N 7710 8 8 6 1 7 535E-620N 8528 9 8 7 2 8 9 540E-590N 6694 18 8 5 1 10 540E-595N 7978 18 8 7 2 11 540E-600N 7756

a 7

6 1 540E-605N 7624 ia 7 4 1 540E-61 ON 7554 !8 8 7 1 14 540E-615N 7724 i8 7 7 2 15 540E-620N 8186 '8 9 5 1 i 16 17 I 18 I i INSTRUMENTS: RESLILTS IN: BACKGROUND MDA LUDLUM MICRO 'R' METER-MODEL 19 - S/N 11129 µR/hr 9 2 LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 CPM 8288 NIA Total U 4 10 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/~ Th(Nat) 1.5 0.25 BACKGROUND NOT SUBTRACTED --1.J ~ G.. ~ REVIEWED BY: DATE: 7-Lf-7 Z, FILE: AGAASURF ,:\\AREA_G\\AFFECTED\\AGMSURF.WB2

Wednesday, July 21, 1999 LN GRID NUMBER 1 545E-590N 2 545E-595N 3 545E-600N 4 545E-605N 5 545E-610N 6 545E-615N 7 545E-620N 8 9 550E-590N 10 550E-595N 11 550E-600N 550E-605N 550E-610N 14 550E-615N 15 550E-620N 16 17 18 INSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2 3" Mil CRO DETECT R' C.P.M. SL URF 8618 8 7726 7 8352 ~ 7688 8 7494 a 8240 8 7570 ~ I 7798 9118 10 9192 io 7820 8 7952 8 7988 8 8644 7 I RESULTS IN: LUDLUM MICRO 'R' METER* MODEL 19

  • SIN 11129 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

,iJ,a - ~ REVIEWED BY: FILE: AGAASURF ~:\\AREA_ G\\AFFECTED\\AGMSURF. WB2 DA TE* 02/1 8/97 MICRO R' 0-6" Sample 1 METER Total-U Th (Nat) 8 9 1 7 7 2 8 6 1 8 5 1 7 5 1 8 6 1 8 8 1 7 5 2 9 7 2 8 5 1 8 4 1 9 8 1 8 7 1 9 9 1 BACKGROUND MDA µR/hr 9 2 CPM 8288 NIA Total U 4 10 pCi/g Th(Nat) 1.5 0.25 DATE: 7 t-9' z:

Wednesday, July 21, 1999 LN GRID NUMBER 1 555E-590N 2 555E-595N 3 555E-60DN 4 555E-605N 5 555E-610N 6 555E-615N 7 555E-620N 8 9 560E-590N 10 560E-595N 11 560E-600N 12 560E-605N 56DE-610N 14 560E-615N 15 560E-620N 16 17 18 NSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" $URFACE AFFECTED ROADWAY NORTH OF WP #2. 3" Ml( RO DETECT H' C.P.M. SL RF 7610 ~ 9516 10 8850 3 9286 ~ 8880 ~ 8054 ~ 6712 ) 7254 t 8744 9 9070 9 5616 ~ 6582 a 7534 e 8762 8 i i f i RESULTS IN: .UDLUM MICRO 'R' METER

  • MODEL 19 - S/N 11129

.UDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR S/N 97264 '.:IMMARON SOIL COUNTER 4" X 4" X 16" Nat DETECTOR MICRO R' 1 METER 8 9 9 8 9 9 6 8 8 8 7 8 7 8 µR/hr CPM pCi/g

IACKGROUND NOT SUBTRACTED REVIEWED BY:

=!LE: AGAASURF ,v.a. ~ ,:\\AREA_G\\AFFECTED\\AGAASURF.WB2 DATE* 02/18/97 0-6" Sample Total-U Th (Nat) 9 2 6 2 6 1 9 1 8 1 11 1 7 1 7 2 4 2 6 2 ROCK ROCK 5 1 6 1 6 1 BACKGROUND MDA g 2 8288 NIA Total U 4 10 Th(Nat) 1.5 0.25 DATE: 7 f -77

Wednesday, July 21, 1999 LN GRID NUMBER 1 565E-590N 2 565E-595N 3 565E-600N 4 565E-605N 5 565E-610N 6 565E-615N 7 565E-620N 8 9 570E-590N 10 570E-595N 11 570E-600N 570E-605N 570E-610N 14 570E-615N 15 570E-620N 16 17 18 INSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2 3" Ml CRO DETECT R' C.P.M. SI ~RF 8978 ~o 7972 8 7336 7 7454 8 9002 0 9296 rn I 7202 !s I 7000 7 8980 rn 8456

g 7722 8

6772 7 6250 !5 9608 10 j RESULTS IN: LUDLUM MICRO 'R' METER - MODEL 19 - SIN 11129 LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SfN 97264 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR BACKGROUND NOT SUBTRACTED REVIEWED BY: FILE: AGAASURF \\:\\AREA_G\\AFFECTED\\AGAASURF.WB2 DATE 02/18/97 MICRO R' 0-6 Sample 1 METER Total-U Th (Nat) 9 7 2 8 4 1 7 6 1 8 4 2 9 8 2 10 6 2 6 9 1 7 9 2 9 5 2 8 5 1 8 5 1 7 4 1 7 ROCK ROCK 9 7 2 BACKGROUND MDA µR/hr 9 2 CPM 8288 N/A Total U 4 10 pCi/g Th(Nat) 1.5 0.25 DATE: ") 1,,-77

Nednesday, July 21, 1999 LN GRID NUMBER 1 575E-590N 2 575E-595N 3 575E-600N 4 575E-605N 5 575E-610N 6 575E-615N 7 575E-620N 8 9 580E-590N 10 580E-595N 11 580E-600N 1 580E-605N 580E-610N 14 580E-615N 15 580E-620N 16 17 18 NSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2 3" MIC RO DETECT F' C.P.M. SU RF 7482 9118 10 8874 ~ 8352 a 8844 ~ 9250 10 8744 9 7780 8 8678 ~ 9014 1b 9214 ~ 8320 8162 7998 ~ .UDLUM MICRO 'R' METER - MODEL 19 - SIN 11129 .UDLUM 2221, UNSHIELDED 3" X 112" Nal DETECTOR SIN 97264

IMMARON SOIL COUNTER 4" X 4" X 16" Nal DElECTOR IACKGROUND NOT SUBTRACTED REVIEWED BY:
1LE: AGAASURF
\\AREA_ G\\AFFECTED\\AGAASURF.WB2 MICRO R'

1 METER 8 9 8 8 9 9 8 8 8 10 9 8 8 8 µR/hr CPM pCi/g DATE* 02/18/97 0-6" Sample Total-U 6 8 8 7 4 9 6 10 12 8 9 8 7 6 BACKGROUND 9 8288 Total U 4 Th{Nat) 1.5 Th {Nat) 1 1 2 2 1 2 2 1 1 2 2 2 2 1 MDA 2 NIA 10 0.25

Nednesday, July 21, 1999 LN GRID NUMBER 1 585E-590N 2 585E-595N 3 585E-600N 4 585E-605N 5 585E-610N 6 585E-615N 7 585E-620N 8 9 590E-590N 10 590E-595N 11 590E-600N 12 590E-605N 590E-610N 14 590E-615N 15 590E-620N 16 17 18 NSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2

  • 3" MU ;RO DETECT

~* C.P.M. Sl RF 8052 ~ 7492 ~ 9258 0 9122 0 9008 a 8916 9 8872 9 9038 ~ 8166 t 9518 ~o 9378 9 8974 9 9186 9 8980 b ' i I I i RESULTS IN: .UDLUM MICRO 'R' METER* MODEL 19. S/N 11129 .UDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 '.:IMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR 3ACKGROUND NOT SUBTRACTED -1.J.o.. ~ REVIEWED BY: =1LE: AGAASURF ,:\\AREA_G\\AFFECTED\\AGAASURF.WB2 DATE* 02/18/97 MICRO R' 0-6" Sample 1 METER Total-U Th (Nat) 9 6 1 8 5 2 8 8 2 9 7 2 8 9 2 8 6 2 9 7 1 9 8 2 9 8 2 9 8 2 10 7 2 9 7 2 9 6 2 8 5 2 BACKGROUND MDA µR/hr 9 2 CPM 8288 N/A Total U 4 10 pCi/~ Th(Nat) 1.5 0.25 DATE: 7-2-1 -rz

~ednesday, July 21, 1999 LN GRID NUMBER 1 595E-590N 2 595E-595N 3 595E-600N 4 595E-605N 5 595E-610N 6 595E-615N 7 595E-620N 8 9 600E-590N 10 600E-595N 11 600E-600N 12 600E-605N 600E-610N 14 600E-615N 15 600E-620N 16 17 18 llSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2 3" DETECT C.P.M. 8440 7970 7630 9156 9368 9346 8942 8140 8288 7932 8130 9042 8976 8640 MIC RO F' SU RF ~ 1b 10 ' 9 9 I a g ! 9 d 1b I 10 10 i i RESUJTS IN: UDLUM MICRO 'R' METER* MODEL 19 - S/N 11129 UDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR S/N 97264 IMMARON SOIL COUNTER 4" X 4" X 16" NaJ DEiECTOR ACKGROUND NOT SUBTRACTED REVIEWED BY: ILE: AGAASURF \\AREA_ G\\AFFECTED\\AGAASURF. WB2 DATE: 02/18/97 MICRO R' 0-6" Sample 1 METER Total-U Th (Nat) 9 8 2 9 7 1 8 7 1 9 9 2 10 7 1 9 5 2 8 8 1 8 8 1 8 8 2 8 11 2 8 11 2 9 10 2 g 7 1 8 9 2 BACKGROUND MDA µR/hr 9 2 CPM 8288 N/A Total U 4 10 pCi/g Th(Nat) 1.5 0.25 DATE: 7* :i..,1-17

Wednesday, July 21, 1999 CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" SURFACE AFFECTED ROADWAY NORTH OF WP #2 I 3" Mli~o

LN GRID DETECT NUMBER C.P.M.

I 1 605E-590N 8712 2 605E-595N 9084 3 605E-600N 8520 4 605E-605N 7954 5 605E-610N 8324 6 605E-615N 9222 7 605E-620N 9168 8 9 610E-590N 8572 10 610E-595N 9262 11 610E-600N 9526 12 610E-605N 9484 610E-610N 8592 14 610E-615N 8008 15 610E-620N 9300 16 17 18 INSTRUMENTS: LUDLUM MICRO 'R' METER - MODEL 19 - S/N 11129 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 REVIEWED BY: FILE: AGAASURF 1.:\\AREA_ G\\AFFECTED\\AGAASURF.WB2 Sl)RF ~ ~ 9 I ~ 8 10 9 i j ~ ~ 111 9 ~ ~ 9 REsulrs IN: DATE* 02/18/97 MICRO R' 0-6" Sample 1 METER Total-U Th (Nat) 10 9 2 8 4 1 8 6 2 8 7 1 8 6 1 9 6 1 9 6 1 9 6 1 9 4 2 9 9 2 8 7 2 8 5 2 7 6 1 8 6 2 BACKGROUND MDA µR/hr 9 2 CPM 8288 NIA Total U 4 10 pCi/g Th(Nat) 1.5 0.25 DATE: ?-2--I-J7

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

  • SURFACE AFFECTED ROADWAY - NORTH OF WP #2 CIMARRON SOIL COUNTER TOTAL URANIUM SOIL SAMPLE RESULTS SITE BACKGROUND OF 4 pCi/g. OT SUBTRACTED MARCH 1997 TOTAL URANIUM SA PLE RESULTS 14.

12 10

J 8

[J) -o 6 c.. 4 2 SURVEY D TA 1, URANIUM SAMPL.E RESULTS FREQUENCY DISTRIBUTION 50 ~. ~~~~~~~~~~-r--- U'J I w '--: ---l-----+- a:'. 40 -: ~---+-------+-

...-! --+-~------'-

'75 30 '. _ u.. ~ 20 '---:..............,_ w ~ 10 ! z O 3 4 5 6 7 8 9 10 11 12 pCi/g NUMBER OF SAMPLES AVERAGE SAMPLE MINIMUM SAMPLE MAXIMUM SAMPLE, STANDARD DEVIATIPN 187 7 3 12 2

\\POGAURAO.WB2

Wednesday, July 21, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED ROADWAY - NORTH OF WP #2 CIMARRON SOIL COUNTER THORIUM (NATURAL) SOIL $AMPLE RESULTS I SITE BACKGROUND OF 1.5 pCi g NOT SUBTRACTED A:\\POGA THOO. WB2 (/) RESULTS IN R/hr MARCH 19 7 THORIUM SAM LE RESULTS SURVEY DATA 0.5 0 THORIUM (NATURAL) AMPLE RESULTS FREQUENCY DIS. RIBUTION I 120 --------+-' ---- ~ ~ 100 a_ ~ ~ 80 I.I... 0 a:::

  • LU
  • CD

~

J z 2

pCi/g NUMBER OF SAMPLES 187 AVERAGE SAMPLE 1 MINIMUM SAMPLE 1 MAXIMUM SAMPLE 2 STANDARD DEVIATION 0

Wednesday, July 21, 1999 A:\\POGAMRSO.WB2 PHASE II, SUB-AREA "G" - SURFACE AFFECTED ROADWAY.. NORTH OF WP #2 MICRO-R METER REA(t,INGS AT SURFACE LUDLUM MODEL 18, S/N 111299 RES UL TS I : µR/hr 70 Cf) (!) 60 z o 50 <( ~ 40 LL O 30 -- a:: w 20 Ill ~ 10

, z MARCH 997 MICRO 'R' READINGS MICRO 'R' READINGS FREQUENCY! DISTRIBUTION

__j 0 5 6 7.* 8 9 10 11 [ µR/hr NUMBER OF READINGS AVERAGE READING MINIMUM READING MAXIMUM READING STANDARD DEVIATION 189 8 5 11 1

Wednesday, July 21, 1999 PHASE II, SUB-AREA 1"G" - SURFACE AFFECTED ROADWAY 1 NORTH OF WP #2 MICRO-R METER READINGS AT 1 METER. ABOVE SURFACE LUDLUM MODEL 19/, S/N 111299 RES UL TS IN µR/hr MARCH 19r7 A:\\POGAMRDO.WB2 MICRO 'R' R ADINGS FREQUENCY DISTRIBUTION r.l) 100.------...--,-----.--- UJ c[ 80 +-----+----+- ~ f,/) 60 +-. - --'----+---

u.

O 40 +----+- n:: w ~ 20.-, --+- f - - 1 -+- \\ z O +-1

!-J NUMBER OF READINGS AVERAGE READING MINIMUM READING MAXIMUM READING STANDARD DEVIATION 189 8

6 10 1

Nednesday, July 21, 1999 \\POGA3DEO.WB2 PHASE II - SUB-AREA "G" - SURFACE AFFECTED ROADWAY - NORTH OF WP #2 GROSS GAMMA READ~NGS IN CPM LUDLUM MODEL 2221, S/N 97264 BACKGROUND AVE~GE :8288 MARCH 19~7 10000 8000 ~ 6000 0.... O 4000 2000 r.J') UJ I 3" Nal DETECTOR READINGS SURVEY D TA 3" Nal DETECTION. READINGS FREQUENCY DISTRIBUTION 0:: 40 -* --+--+------+-----i~--h- ~ 1--1 ---~--+,- ~ 30 1--' --+--+---~-~+,- 'LL. O 20 +----+-----+-~---+- ~ W, co ' ~ 10 +-' -----+----+-' => z NUMBER OF SAMPLES 189 AVERAGE SAMPLE 7968 MINIMUM SAMPLE 5224 MAXIMUM SAMPLE 9608 STANDARD DEVIATION 946

CIMARRON CORPORATION - CIMARRON FA/CILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - SURFACE -AFFECTED ROADWAY - NORTH OF WP#2 n=p C'/ TOTAL U I Cl Number n (n-N) (n-N)' 1 3 -3.8 14.6 2 4 -2.8 8.0 3 4 -2.8 8.0 4 4 -2.8 8.0 5 4 -2.8 8.0 6 4 -2.8 8.0 7 4 -2.8 8.0 8 4 -2.8 8.0 9 4 -2.8 8.0 10 4 -2.8 8.0 11 4 -2.8 8.0 12 4 -2.8 8.0 13 4 -2.8 8.0 14 4 -2.8 8.0 15 4 -2.8 8.0 16 4 -2.8 8.0 17 4 -2.8 8.0 18 4 -2.8 8.0 19 4 -2.8 8.0 20 5 -1.8 3.3 21 5 -1.8 3.3 22 5 -1.8 3.3 23 5 -1.8 3.3 24 5 -1.8 3.3 25 5 -1.8 3.3 26 5 -1.8 3.3 27 5 -1.8 3.3 28 5 -1.8 3.3 29 5 -1.8 3.3 30 5 -1.8 3.3 31 5 -1.8 3.3 32 5 -1.8 3.3 33 5 -1.8 3.3 34 5 ~1.8 3.3 35 5 -1.8 3.3 36 5 -1.8.. 3.3 37 5 -1.8 3.3 38 5 -1.8 3.3 39 5 -1.8 3.3 40 5 -1.8 3.3 41 5 -1.8 3.3 42 6 -0.8 0.7 43 6 -0.8 0.7 44 6 -0.8 0.7 45 6 --0.8 0.7 46 6 -0.8 0.7 47 6 --0.8 0.7 48 6 -0.8 0.7 49 6 -0.8 0.7 50 6 -0.8 0.7 311.0 26.8 375.0 35.4 351.0 301.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1276 601.2 Sum(n) Sum(n-N)' No. of Samples (x) : ! 187 ! COUNT TIME: 5 MINUTES Sample Mean (N) = Sum(n) + (x) Sample Me1n (N) : I 6.82 l St,nd"d ~v;,tion (Sd)

  • SQRT [(n-N¥ + (x -1)]

i Standard qeviation: [}JiiJl 2 Std Deviations: ~ Degree of Fteedom(df).= (x) - 1 Data listed on Table B-1 i (df) = 1 1.656 I Area's Ave~ge Level (Al,I) = (N) + (df) x ((Sd)/SQRT(x)J (A~)= ~ pCi/gU TOTAL U GUIOELINliVALUE: 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% 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 llsted: Interpolate between the listed values. 400 is (B) I 1.649 I 120 is (A) I 1.658 I (df) high value(Z) (df) low value(Y) Desired val1.1e(df) (X) 186 is calculated as follow: EXP[( (Ln(BtLn(A)) + (Z-Y)) (X-Y) + Ln(A)] 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 The (df) val~e for (X) I 186 I 1.656 ! 95% PERFORMED Y,~,;,,_ DATE, 7~,).J-'ti REVIEWED Y: -'t.J. ~, ~ DATE: /- 2.}, 9 7 PAGE 1 OF 3 a:lgaroadcp

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - SURFACE - AFFECTED ROADWAY - NORTH OF WP#2 n = pCi/g TOTAL U n = pCi/g TOTAL U Number n (n-N) (n-N)' Number n (n-N) (n-N)2 51 6 -0.82 0.68 101 7 0.18 0.03 52 6 -0.82 0.68 102 7 0.18 0.03 53 6 -0.82 0.68 103 7 0.18 0.03 54 6 -0.82 0.68 10~ 7 0.18 0.03 55 6 -0.82 0.68 10! 7 0.18 0.03 56 6 -0.82 0.68 101 7 0.18 0.03 57 6 -0.82 0.68 10, 7 0.18 0.03 58 6 -0.82 0.68 10 7 0.18 0.03 59 6 -0.82 0.68 10c 7 0.18 0.03 60 6 -0.82 0.68 11( 7 0.18 0.03 61 6 -0.82 0.68 11 7 0.18 0.03 62 6 -0.82 0.68 11~ 7 0.18 0.03 63 6 -0.82 0.68

11.

7 0.18 0.03 64 6 -0.82 0.68 11~ 7 0.18 0.03 65 6 -0.82 0.68 11! 7 0.18 0.03 66 6 -0.82 0.68 11E 7 0.18 0.03 67 6 -0.82 0.68 11, 7 0.18 0.03 68 6 -0.82 0.68 118 7 0.18 0.03 69 6 -0.82 0.68 119 7 0.18 0.03 70 6 -0.82 0.68 120 7 0.18 0.03 71 6 -0.82 0.68 12* 7 0.18 0.03 72 6 -0.82 0.68 12~ 7 0.18 0.03 73 6 -0.82 0.68 12: 7 0.18 0.03 74 6 -0.82 0.68 124 7 0.18 0.03 75 6 -0.82 0.68 125 7 0.18 0.03 76 6 -0.82 0.68 126 8 1.18 1.38 77 6 -0.82 0.68 121 8 1.18 1.38 78 6 -0.82 0.68 12E 8 1.18 1.38 79 6 -0.82 0.68 12~ 8 1.18 1.38 80 6 -0.82 0.68 13 8 1.18 1.38 81 6 -0.82 0.68 13~ 8 1.18 1.38 82 6 -0.82 0.68 132 8 1.18 1.38 83 6 -0.82 0.68 133 8 1.18 1.38 84 6 -0.82 0.68 134 8 1.18 1.38 85 6 -0.82 0.68 135 8 1.18 1.38 86 6 -0.82 0.68 138 8 1.18 1.38 87 6 -0.82 0.68 137 8 1.18 1.38 88 6 -0.82 0.68 138 8 1.18 1.38 89 6 -0.82 0.68 139 8 1.18 1.38 90 7 0.18 0.03 140 8 1.18 1.38 91 7 0.18 0.03 141 8 1.18 1.38 92 7 0.18 0.03 142 8 1.18 1.38 93 7 0.18 0.03 143 8 1.18 1.38 94 7 0.18 0.03 144 8 1.18 1.38 95 7 0.18 0.03 145 8 1.18 1.38 96 7 0.18 0.03 146 8 1.18 1.38 97 7 0.18 0.03 147 8 1.18 1.38 98 7 0.18 0.03 14E 8 1.18 1.38 99 7 0.18 0.03 14~ 8 1.18 1.38 100 7 0.18 0.03 15( 8 1.18 1.38 311.0 26.8 375.0 35.4 Sum(n) Sum(n-N)2 Sum(n) Sum(n-N)2 PAGE 2 OF 3 a:\\garoadcp

CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA "G' -SURFACE -AFFECTED ROADWAY-NORTH OF WP#2 n = pCi/g TOTAL U . n = pCi/g TOTAL U Number n (n-N) (n-N)2 Numt'er n (n-N) (n-N)2 151 8 1.18 1.38 201 0.00 0.00 152 8 1.18 1.38 20~ 0.00 0.00 153 8 1.18 1.38 20~ 0.00 0.00 154 8 1.18 1.38 20A 0.00 0.00 155 9 2.18 4.74 2Df 0.00 0.00 156 9 2.18 4.74 20E 0.00 0.00 157 9 2.18 4.74 20, 0.00 0.00 158 9 2.18 4.74 20f 0.00 0.00 159 9 2.18 4.74 20~ 0.00 0.00 160 9 2.18 4.74 21C 0.00 0.00 161 9 2.18 4.74 211 0.00 0.00 162 9 2.18 4.74 21~ 0.00 0.00 163 9 2.18 4.74 213 0.00 0.00 164 9 2.18 4.74 21~ 0.00 0.00 165 9 2.18 4.74 2H 0.00 0.00 166 9 2.18 4.74 216 0.00 0.00 167 9 2.18 4.74

217, 0.00 0.00 168 9

2.18 4.74 218 0.00 0.00 169 9 2.18 4.74 219 0.00 0.00 170 9 2.18 4.74 220 0.00 0.00 171 9 2.18 4.74 221 0.00 0.00 172 9 2.18 4.74 22.Z 0.00 0.00 173 9 2.18 4.74 2231 0.00 0.00 174 9 2.18 4.74 224 0.00 0.00 175 10 3.18 10.09 225 0.00 0.00 176 10 3.18 10.09 226 0.00 0.00 177 10 3.18 10.09 221 0.00 0.00 178 10 3.18 10.09 228i 0.00 0.00 179 10 3.18 10.09 2291 0.00 0.00 180 10 3.18 10.09 230 0.00 0.00 181 11

  • 4.18 17.44 231!

0.00 0.00 182 11 4.18 17.44 232 0.00 0.00 183 11 4.18 17.44 233 0.00 0.00 184 11 4.18 17.44 234 0.00 0.00 185 11 4.18 17.44 235 0.00 0.00 186 12 5.18 26.80

236, 0.00 0.00 187 12 5.18 26.80 237 0.00 0.00 188 0.00 0.00 238 0.00 0.00 189 0.00 0.00 239 0.00 0.00 190 0.00 0.00 240 0.00 0.00 191 0.00 0.00 241 0.00 0.00 192 0.00

. 0.00 242 0.00 0.00 193 0.00 0.00 243 0.00 0.00 194 0.00 0.00 244 0.00 0.00 195 0.00 0.00 24S 0.00 0.00 196 0.00 0.00 246 0.00 0.00 197 0.00 0.00 247 0.00 0.00 198 0.00 0.00 248 0.00 0.00 199 0.00 0.00 249 0.00 0.00 200 0.00 0.00 250 0.00 0.00 351.0 301.6 0.0 0.0 Sum(n) Sum(n-N)2 Sum(n) Sum(n-N)' PAGE 30F 3 a:lgaroadcp

CIMARRON CORPORATION

  • CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - SURFACE* AFFECTED ROADWAY - NORTH OF WP#2 n = pCi/g Th (NAT)

Number n (n-N) (n-N)' 1 1 -0.4 0.1 2 1 -0.4 0.1 3 1 -0.4 0.1 4 1 -0.4 0.1 5 1 -0.4 0.1 6 1 -0.4 0.1 7 1 -0.4 0.1 8 1 -0.4 0.1 9 1 -0.4 0.1 10 1 -0.4 0.1 11 1 -0.4 0.1 12 1 -0.4 0.1 13 1 -0.4 0.1 14 1 -0.4 0.1 15 1 -0.4 0.1 16 1 -0.4 0.1 17 1 -0.4 0.1 18 1 -0.4 0.1 19 1 -0.4 0.1 20 1 -0.4 0.1 21 1 -0.4 0.1 22 1 -0.4 0.1 23 1 -0.4 0.1 24 1 -0.4 0.1 25 1 -0.4 0.1 26 1 -0.4 0.1 27 1 -0.4 0.1 28 1 -0.4 0.1 29 1 -0.4 0.1 30 1 -0.4 0.1 31 1 -0.4 0.1 32 1 -0.4 0.1 33 1 -0.4 0.1 34 1 .:.0.4 0.1 35 1 -0.4 0.1 36 1 -0.4., 0.1 37 1 -0.4 0.1 38 1 -0.4 0.1 39 1 -0.4 0.1 40 1 -0.4 0.1 41 1 -0.4 0.1 42 1 -0.4 0.1 43 1 -0.4 0.1 44 1 -0.4 0.1 45 1 -0.4 0.1 46 1 -0.4 0.1 47 1 -0.4 0.1 48 1 -0.4 0.1 49 1 -0.4 0.1 50 1 -0.4 0.1 50.0 6.8 82.0 15.2 74.0 14.7 0.0 0.0 0.0 0.0 0.0 0.0 o.o 0.0 256 43.5 Sum(n) sum(n-N)* No. of Sam~les (x) : J 187 I COUNT Tl E: 5 MINUTES Sample Me n (N) = Sum(n) + (x) Sample Me n (N): j 1.37 I Standard D viation (Sd) = SQRT [(n-N)2 + (x - 1 )] Standard aviation: ~ 2 Std De iations: ~ Degree of F~eedom(df).= (x) - 1 Data listed on Table B-1 I (df) = j 1.656 j Area's Aver1ge Level (Aµ)= (N) + (df) x [(Sd)/SQRT(x}]

(Ap)=

GUIDELIN~ VALUE: Acceptable ~evel: I pCi/gTh {NAT) pCi/gTh {NAT) pCi/gTh (NAT) TABLE B -1 Factors for Comparision of Survey Data with Guidelines (df) 95% 97.5% (df) 1 6.314 12.706 19 2 2.92 4.303 20 3 2.353 3.182 21 4 2.132 2.776 22 5 2.015 2.571 23 6 1.943 2.447 24 7 1.895 2.365 25 8 1.86 2.306 26 9 1.833 2.262 27 10 1.812 2.228 28 11 1.796 2.201 29 12 1.782 2.179 30 13 1.771 2.16 40 14 1.761 2.145 60 15 1.753 2.131 120 16 1.746 2.12 400 17 1.74 2.11 Infinite 18 1.734 2.101 For values of Degrees of Freedom not listed: Interpolate between the listed values. (df) high value(Z) (df) low val!,Je(Y) 400 120 is (B) is(A) 95*;. 1.729 1.725 1.721 1.717 1.714 1.711 1.708 1.706 1.703 1.701 1.699 1.697 1.684 1.671 1.658 1.649 1.645 ] 1.649 l I 1.658 I 186 is calculated as follow: 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% l I PERFORMED REVIEWED DATE: 7-~(-f) DATE: 7-2-1-</9 PAGE 1 OF 3 a:\\gardthcp

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - SURFACE -AFFECTED ROADWAY - NORTH OF WP#2 n = pCi/g Th (NAT) n = pCi/g Th (NAT) Number n (n-N) (n-N)2 Numter n (n-N) (n-N)2 51 1 -0.37 0.14 101 1 -0.37 0.14 52 1 -0.37 0.14 10~ 1 -0.37 0.14 53 1 -0.37 0.14 10~ 1 -0.37 0.14 54 1 -0.37 0.14 10~ 1 -0.37 0.14 55 1 -0.37 0.14 10 1 -0.37 0.14 56 1 -0.37 0.14 10 1 -0.37 0.14 57 1 -0.37 0.14 10 1 -0.37 0.14 58 1 -0.37 0.14 10a 1 -0.37 0.14 59 1 -0.37 0.14 10!3 1 -0.37 0.14 60 1 -0.37 0.14 110 1 -0.37 0.14 61 1 -0.37 0.14 111 1 -0.37 0.14 62 1 -0.37 0.14 11 1 -0.37 0.14 63 1 -0.37 0.14 11 1 -0.37 0.14 64 1 -0.37 0.14 11 1 -0.37 0.14 65 1 -0.37 0.14 1H 1 -0.37 0.14 66 1 -0.37 0.14 116 1 -0.37 0.14 67 1 -0.37 0.14 1H 1 -0.37 0.14 68 1 -0.37 0.14 118 1 -0.37 0.14 69 1 -0.37 0.14 11~ 2 0.63 0.40 70 1 -0.37 0.14 12Q 2 0.63 0.40 71 1 -0.37 0.14 121' 2 0.63 0.40 72 1 -0.37 0.14 122 2 0.63 0.40 73 1 -0.37 0.14 123 2 0.63 0.40 74 1 -0.37 0.14 124 2 0.63 0.40 75 1 -0.37 0.14 125 2 0.63 0.40 76 1 -0.37 0.14 12$ 2 0.63 0.40 77 1 -0.37 0.14 127 2 0.63 0.40 78 1 -0.37 0.14 128 2 0.63 0.40 79 1 -0.37 0.14 129 2 0.63 0.40 80 1 -0.37 0.14 130 2 0.63 0.40 81 1 , -0.37 0.14 131' 2 0.63 0.40 82 1 -0.37 0.14 13:2 2 0.63 0.40 83 1 -0.37 0.14 133 2 0.63 0.40 84 1 -0.37 0.14 13 2 0.63 0.40 85 1 -0.37 0.14 13~ 2 0.63 0.40 86 1 -0.37 0.14 136 2 0.63 0.40 87 1 -0.37 0.14 137 2 0.63 0.40 88 1 -0.37 0.14 138 2 0.63 0.40 89 1 -0.37 0.14 139 2 0.63 0.40 90 1 -0.37 0.14 140 2 0.63 0.40 91 1 -0.37 0.14 1411 2 0.63 0.40 92 1 -0.37 0.14 142 2 0.63 0.40 93 1 -0.37 0.14 143 2 0.63 0.40 94 1 -0.37 0.14 144 2 0.63 0.40 95 1 -0.37 0.14 145 2 0.63 0.40 96 1 -0.37 0.14 148 2 0.63 0.40 97 1 -0.37 0.14 147 2 0.63 0.40 98 1 -0.37 0.14 14f 2 0.63 0.40 99 1 -0.37 0.14 14 2 0.63 0.40 100 1 -0.37 0.14 15 2 0.63 0.40 50.0 6.8 82.0 15.2 Sum(n) Sum(n-N)' Sum(n) Sum(n-N)2 PAGE 2 OF 3 a:\\gardthc p

CIMARRON CORPORATION

  • CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - SURFACE - AFFECTED ROADWAY - NORTH OF WP#2 n = pCi/g Th (NAT)
  • n = pCi/g Th (NAT)

Number n (n-N) (n-N)2 Numi')er n (n-N) (n-N)% 151 2 0.63 0.40 20* 0.00 0.00 152 2 0.63 0.40 20.! 0.00 0.00 153 2 0.63 0.40 20.~ 0.00 0.00 154 2 0.63 0.40 20 J 0.00 0.00 155 2 0.63 0.40 20 > 0.00 0.00 156 2 0.63 0.40

201, 0.00 0.00 157 2

0.63 0.40 20

  • 0.00 0.00 158 2

0.63 0.40 20:, 0.00 0.00 159 2 0.63 0.40 20'9 0.00 0.00 160 2 0.63 0.40 2110 0.00 0.00 161 2 0.63 0.40 21 0.00 0.00 162 2 0.63 0.40 2H 0.00 0.00 163 2 0.63 0.40 213 0.00 0.00 164 2 0.63 0.40 214 0.00 0.00 165 2 0.63 0.40 21:~ 0.00 0.00 166 2 0.63 0.40 215 0.00 0.00 167 2 0.63 0.40 21 i' 0.00 0.00 168 2 0.63 0.40 21S 0.00 0.00 169 2 0.63 0.40 2111 0.00 0.00 170 2 0.63 0.40 2211 0.00 0.00 171 2 0.63 0.40 22* 0.00 0.00 172 2 0.63 0.40 222 0.00 0.00 173 2 0.63 0.40 223 0.00 0.00 174 2 0.63 0.40 224 0.00 0.00 175 2 0.63 0.40 225 0.00 0.00 176 2 0.63 0.40 226 0.00 0.00 177 2 0.63 0.40 227 0.00 0.00 178 2 0.63 0.40 228 0.00 0.00 179 2 0.63 0.40 22$ 0.00 0.00 180 2 0.63 0.40 23~ 0.00 0.00 181 2 ' 0.63 0.40 23 0.00 0.00 182 2 0.63 0.40 232 0.00 0.00 183 2 0.63 0.40 233 0.00 0.00 184 2 0.63 0.40 234 0.00 0.00 185 2 0.63 0.40 23$ 0.00 0.00 186 2 0.63 0.40 23$ 0.00 0.00 187 2 0.63 0.40 237 0.00 0.00 188 0.00 0.00 238 0.00 0.00 189 0.00 0.00 239 0.00 0.00 190 0.00 0.00 24G 0.00 0.00 191 0.00 0.00 241 0.00 0.00 192 0.00 0.00 242 0.00 0.00 193 0.00 0.00 243 0.00 0.00 194 0.00 0.00 244 0.00 0.00 195 0.00 0.00 24$ 0.00 0.00 196 0.00 0.00 24$ 0.00 0.00 197 0.00 0.00 24 0.00 0.00 198 0.00 0.00 24 ~ 0.00 0.00 199 0.00 0.00 24't 0.00 0.00 200 0.00 0.00 251) 0.00 0.00 74.0 14.7 0.0 0.0 Sum(n) Sum(n-N)2 Sum(n) Sum{n-N)2 PAGE 3 OF 3 a:\\gardthc p

450 690 670 660 650 640 6.30 620 610 590 580 570 560 550 540 530 520 450 460 470 480 490 500 510 520 530 7+ 7+ 5+ 7+ 4+ 6+ 8+ 8+ 4+ 7+ 6+ 8+ 4+ 4+ 6+ 9+ 6+ 11+ 7+ 6+ 3+ 4 6+ 7+ 5+ 6+ 10+ 8+ 4+ 8+ + 6+ 6+ 6 ' + 7+ 7+ + 5+ 12+ 6+ 6+ 540 550 560 570 580 590 600 610 620 5+ 8+ 9+ 7+ 6+ + 7+ 6+ 6+ 7+ 5+ 8+ + 6+ 6+ / 7+ 6+ 7+ 11+ 6+ 6+ R+ 9+ 7+ 6+ 6+ 5+ 7+ 6+ 6+ 7+ s+ 8+ 8+ 5+ 8+ 4+ 4+ a+ 9+ 7+ 7+ 10~ 6+ s7 4+ 5+ 4+ 9+ ~ 4+ 5+ 7+ 9+ 7+ 7+ + 11+ 7+ 11+ I 630 640 / 650 660 670 680 690 700 710 720 730 740 750 760 690 680 /ROAD 670 / 660 650 640 630 620 610 -* ~*-~ -*"***-*..... _ 11 8 5 8 5, 6 6 5 6 7 9 8 . *- --** -+ -*- +- * + - + - 't -- +. + -- + - + -- + --+--+ §+ _§+ _ ~+ 6+ _ 6+ _ 6+... 5+ -!4-8+--8+ *-~+-.Z+_-11+.) + -+ 7+ 7+ 7+ 6+ 4+ 4+ 5+ 8+ 12+ 5+ 8+ 7+ + 4+ + ..................................................................................................................................................... soc I I I I 1 I I I 460 f I I I I I 470 7+ 10+ 5+ 4 o+ 8 4+ 8 f 6 + 6+ I 480 490 1;-\\ - + + + 6 6+ 7+ 5 ' + 4+ + 7+ 8+ 10+ 8+ - 8+ 9:t> 5 9 !_ + _!_t__9 +_ 6 1 0..6 + + 8 + 8 + 9 + 6 + + 6+ 6+ '+ r-- - --- - ---- ------- - -- -i \\ I. I I : I* I I . I Ii I 1: I 1: I I! I Ii I 11 1 URANIUM WASTE POND #2 Ii I I I r I I I I I I I I I I I I I I l .I I I I I

  • \\

I 'I I ii I i J I I I

I I

' I I , I __ I____ **- *--- ---- ----- -------*-------* ---------* *-*-.. -*-* -***-* --------** --*-*------------ *- -* ----***-... *. ------ ***-- 500 510 520 530 550 560 570 580 590 600 610 620 SUB-AREA G BOUND RY NOTES: SAMPLES ARE IN PICO-CURIES PER GRAM URN-llUM (pCi/g U). CIMARRON GAMMA SPEC SOIL COUNTER SITE SOIL BACKGROUND OF 4 pCi/g U, NOT SUBTRACTED. R + HIT ROCK, NO SAMPLE TAKEN. REV. OESCR1PTION BY: Cl<'D BY: N'P'D BY: !li\\TE 20 0 . RESERVOIR /13 20 ""- ~ORTH" SC A L E I N M E TERS~~ @J CIMARRON CORPORATION CIMARRON F AGILITY PHASE II - SUB-AREA G EXPANDED ROADWAY NORTH OF WP #2 SURFACE SOIL SAMPLE RESULTS ORWN. BY JE ~TE SCALE 9/22/99 AS SHOWN t-c--+-----------------t---=-t--,--t-.,.,.--t,-c,-r:-:-,--tJOB NO. 0 DRAWING ISSUED. JE WR JL O 18 99 OP.AWING HO. 99P0SGERSS-0 REV. 0 ... \\ CIM\\ SUBAAEAG99\\ RON)WAY\\ 99PORGSS1 590 580 570 560 550

Thursct2.ly 22, 1999 3" LN GRID DETECT NUMBER C.P.M. 1 460 E 549 N 6334 2 500 E 602 N 7584 3 520 E 602 N 7208 4 533 E 593 N 6330 5 540 E 602 N 7470 6 560 E 602 N 7670 7 580 E 602 N 8374 8 600 E 602 N 6746 9 620 E 622 N 6540 10 695 E 678 N 5574 11 782 E 630 N 5580 12 879 E - 607 N STANDING 13 14 15 16 17 18 CIMARRON CORPORA. CIMARRON FACILITY PHASE II, SUB-AREA "G" - DEPTH AFFECTED EXPANDED ROADWAY MICRO MICRO R' R' 0 - 6" SURF 1 METER Total-U Th (Nat) 7 6 6 1 8 8 6 1 9 8 6 1 7 7 7 2 7 8 5 1 7 7 8 1 9 9 5 1 8 7 5 1 7 6 6 2 6 6 5 1 6 5 6 1 WATER 6 1 INSTRUMENTS: RESULTS IN LUDLUM MICRO 'R' METER SIN 11129 µr/hr LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR- $/N 97264 CPM CIMMARON SOIL COUNTER X" X 4" X 16" Nal DETECTOR pCi/G BACKGROUND NOT SUBTRACTED 6" - 1' Total-U Th (Nat) 7 1 8 1 12 1 11 1 4 2 6 1 9 1 12 1 10 1 8 1 7 1 ROCK ROCK REVIEWED BY: 'hJ.a., ~ A:\\AGAADPTH. W82 QAQC-158 REV. 1 DATE: 2-18-97 pCi/Q 1' - 2' 2' - 3' Total-U Th (Nat) Total-U 7 1 8 5 1 12 6 1 9 8 1 8 10 1 6 10 2 4 8 2 7 10 2 8 9 1 5 7 1 9 5 1 5 ROCK ROCK ROCK BACKGROUND 9 7208 Total U 4 Th (Nat) 1.5 DATE: ?-.2.(;,-1z Th (Nat) 1 1 1 1 1 1 2 2 1 1 1 ROCK MOA 2 N/A -10 0.25 3' - 4' Total-U Th (Nat) 10 1 7 1 ROCK ROCK 6 1 6 1 4 1 5 1 7 2 7 1 6 1 10 1 ROCK ROCK

Thursday, July 22, 1999 PHASE II, SUB-AREA G" - DEPTH AFFECTED EXPANDED ROADWAY CIMARRON 1 SOIL COUNTER TOTAL URANIUM SOIL SAMPLE RESULTS SITE BACKGROUND OF 4 pCi/g NOT SUBTRACTED Cl) JU~ Y 22,1999 URANIUM S~MPLE RESULTS FREQUEN~Y DISTRIBTION 12 ~ 10 0... ~ <( Cl) u.. 6 0 cc 4 w co ~

) z 0

NUMBER OF SAMPLES 55 AVERAGE SAMPLE 7 MINIMUM SAMPLE 4

  • MAXIMUM SAMPLE 12 STANDARD DEVIATION 2

A:\\GARDURGP.WB2

Monday, July 26, 1999 PHASE II, SUB-AREA "G" - DEPTH AFFECTED EXPANDED ROADWAY CIMARRON SOIL COUNTER TOTAL THORIUMS IL SAMPLE RESULTS SITE BACKGROUND O 1.5 pCi/g NOT SUBTRACTED JUL THORIUM SAMPLE RESULTS FREQUENCY! DISTRIBUTION oo 50 - UJ .....J a.. 40

\\?

~ 30 u.. 0 20 a::: ~10- ~ => z O -j-1 2

pCi/g NUMBER OF SAMPLES 55 AVERAGE SAMPLE 1

MINIMUM SAMPLE 1 MAXIMUM SAMPLE 2 STAN OARD DEVIATION 0.4 A:\\GARDTHGP.W82

Thursday, July 22, 1999 PHASE II, SUB-AREA "G" - DEPTH AFFECTED EXPANDED ROADWAY MICRO-R METER READINGS AT SURFACE LUDLUM MPDEL 19, S/N 111299 RE$UL TS IN µR/hr J LY 22,1999 MICRO *R* READINGS FREQUENbY DISTRIBUTION U) 5 -r-----.----- (.9 z 0 4 +- I -

+-

<{ ~ 3 -+--- -+- LL 0 2. a::: w CD 1 ! ~ I => z O ' 6

  • 7 8

9 µR/hr NUMBER OF SAMPLES 11 AVERAGE SAMPLE 7 MINIMUM SAMPLE 6 MAXIMUM SAMPLE 9 STANDARD DEVIATION 1 C:IOFFICEIQPW\\AREA-GIGARDMRGP.+2

Thursday, July 22, 1999 PHASE II, SUB-AREA "G" - DEPTH AFFECTED E;XPANDED ROADWAY MICRO-R METER READ1N$S AT 1 METER ABOVE SURFACE LUDLUM MpDEL 19, S/N 111299 RE$UL TS IN µR/hr i J LY 22,1999 I MICRO 'R' READINGS FREQUENCY DISTRIBUTION f5 3 - z 0 2.5 --+-

1i 2 -

+- 0::: LL 1.5 - --+- 0 a:: 1 w en 0.5 ~

J O +

z 5 6' 7 8 9 µR/hr NUMBER OF SAMPLES 11 AVERAGE SAMPLE 7 MINIMUM SAMPLE 5 MAXIMUM SAMPLE 9 STANDARD DEVIATION 1 C:\\OFFICE\\QPVV\\AREA-G\\GARDMRGP. 82

Thursday, July 22, 1999 PHASE II, SUB+AREA "G" - DEPTH AFFECTED EXPANDED ROADWAY GROSS GAMMA READINGS IN CPM LUDLUM MODIFL 2221, S/N 97264 BACKGROUNQ AVERAGES: 7208 JUL 22,1999 3" Nal DETEdTOR READINGS FREQUENC'i DISTRIBUTION ~ 4 - z ~3---- w cc LL 2 0 ffi 1 cc

a:

~ 0 + 6000 700(!) 8000 9000 CPM NUMBER OF SAMPLES 11 AVERAGE SAMPLE 6855 MINIMUM SAMPLE 5574 MAXIMUM SAMPLE 8374 STANDARD DEVIATION 849 A:\\GARD3DGP.WB2

CIMARRON CORPORATION

  • CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE PHASE II, SUB-AREA 'G' - AFFECTED EXPANDED ROADWAY
  • DEPTH c*1 TOTAL U n :p I g Number n

(n-N) (n-N)2 1 4 -3.3 10.6 2 4 -3.3 10.6 3 4 -3.3 10.6 4 5 -2.3 5.1 5 5 -2.3 5.1 6 5 -2.3 5.1 7 5 -2.3 5.1 8 5 -2.3 5.1 9 5 -2.3 5.1 10 5 -2.3 5.1 11 5 -2.3 5.1 12 5 -2.3 5.1 13 6 -1.3 1.6 14 6 -1.3 1.6 15 6 -1.3 1.6 16 6 -1.3 1.6 17 6 -1.3 1.6 18 6 -1.3 1.6 19 6 -1.3 1.6 20 6 -1.3 1.6 21 6 -1.3 1.6 22 6 -1.3 1.6 23 6 -1.3 1.6 24 6 -1.3 1.6 25 7 -0.3 0.1 26 7 -0.3 0.1 27 7 -0.3 0.1 28 7 -0.3 0.1 29 7 -0.3 0.1 30 7 -0.3 0.1 31 7 -0.3 0.1 32 7 -0.3 0.1 33 7 -0.3 0.1 34 8 0.7 0.6 35 8 0.7 0.6 36 8 0.7 ' 0.6 37 8 0.7 0.6 38 8 0.7 0.6 39 8 0.7 0.6 40 8 0.7 0.6 41 8 0.7 0.6 42 9 1.7 3.0 43 9 1.7 3.0 44 9 1.7 3.0 45 9 1.7 3.0 46 10 2.7 7.5 47 10 2.7 7.5 48 10 2.7 7.5 49 10 2.7 7.5 50 10 2.7 7.5 57.0 89.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 399 240.4 Sum(n) Sum(n-N)' No. of Samples (x) : I 55 COUNT TIME: 5 MINUTES Sample Me~n (N) = Sum(n) + (x) Sample Me~n (N): I 7.25 I Standard o r viation (Sd) = SQRT [(n-N)' + (x - 1)] I Standard ~. eviation: CT-111 2 Std DEo/iations: ~ Degree of Ftreedom(df).== (x) -1 Data listed on Table B-1 (df) = I 1.61s I Area's Averiage Level (A~)= (N} + (df} x [(Sd)/SQRT(x)J (AIJ)= ~ pCi/gU TOTAL U GUIDELINli=VALUE: pCi/gU TOTAL u Acceptableilevel: pCi/gU TOTAL U TABLE B-1 Factors!for Comparision of Su,vey 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 i 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 I 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. 60 is(B) I 1.611 I 40 is(A) I 1.684 I (df) high value(Z) (df) low value(Y) Desired va~e(df) (X) 54 is calculated as follow: EXP[( (Ln( )*Ln(A)) + (Z-Y)) (X-Y) + Ln{A)] ) 54 1,675 95"/o 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 PERFORME BY. REVIEWED BY: ~-0....~ DATE:/.; k,-f9 DA TE: } - )... <c, - Y Cf PAGE 1 OF 2 a:\\GARDUCMP

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE PHASE II, SUB-AREA 'G' - AFFECTED EXPANDED ROADWAY - DEPTH n = pCi/g TOTAL U

  • n = pCi/g TOTAL U Number n

(n-N) (n-N)2 Number n (n-N) (n-N)2 51 10 2.75 7.54 10* 0.00 0.00 52 11 3.75 14.03 10:i 0.00 0.00 53 12 4.75 22.52

10.

0.00 0.00 54 12 4.75 22.52 10* 0.00 0.00 55 12 4.75 22.52 10 I 0.00 0.00 56 0.00 0.00 101 0.00 0.00 57 0.00 0.00 10'. 0.00 0.00 58 0.00 0.00 10 0.00 0.00 59 0.00 0.00 10 0.00 0.00 60 0.00 0.00 110 0.00 0.00 61 0.00 0.00 111 0.00 0.00 62 0.00 0.00 112 0.00 0.00 63 0.00 0.00 11: 0.00 0.00 64 0.00 0.00 11j 0.00 0.00 65 0.00 0.00 11 0.00 0.00 66 0.00 0.00 11 0.00 0.00 67 0.00 0.00 11, 0.00 0.00 68 0.00 0.00 11 0.00 0.00 69 0.00 0.00 11 0.00 0.00 70 0.00 0.00 12 0.00 0.00 71 0.00 0.00 12* 0.00 0.00 72 0.00 0.00 12: 0.00 0.00 73 0.00 0.00 12 0.00 0.00 74 0.00 0.00 12* 0.00 0.00 75 0.00 0.00 12~ 0.00 0.00 76 0.00 0.00 121 0.00 0.00 77 0.00 0.00 12., 0.00 0.00 78 0.00 0.00 12a 0.00 0.00 79 0.00 0.00 12a 0.00 0.00 80 0.00 0.00 13~ 0.00 0.00 81 0.00 0.00 13' 0.00 0.00 82 0.00 0.00 13: 0.00 0.00 83 0.00 0.00 13: 0.00 0.00 84 0.00 0.00 13* 0.00 0.00 85 0.00 0.00 13 0.00 0.00 86 0.00 0.00 13 0.00 0.00 87 0.00 0.00 137 0.00 0.00 88 0.00 0.00 138 0.00 0.00 89 0.00 0.00 139 0.00 0.00 90 0.00 0.00 140 0.00 0.00 91 0.00 0.00 141 0.00 0.00 92 0.00 0.00 142 0.00 0.00 93 0.00 0.00 143 0.00 0.00 94 0.00 0.00 144 0.00 0.00 95 0.00 0.00 145 0.00 0.00 96 0.00 0.00 146 0.00 0.00 97 0.00 0.00 147 0.00 0.00 98 0.00 0.00 141 0.00 0.00 99 0.00 0.00 14

  • 0.00 0.00 100 0.00 0.00 15 I 0.00 0.00 57.0 89.1 0.0 0.0 Sum(n)

Sum(n-N)2 Sum(n) Sum(n-N)2 PAGE 2 OF 2 a:\\GARDUCMP

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE PHASE II, SUB-AREA 'G' - AFFECTED EXPANiDED ROADWAY - DEPTH Number n 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1 13 1 14 1 n = pCi/g Th (NAT) {n-N) {n-N)2 -0.2 0.0 -0.2 o.o -0.2 0.0 -0.2 0.0 -0.2 0.0 -0.2 0.0 -0.2 0.0 -0.2 0.0 -0.2 0.0 -0.2 0.0 -0.2 o.o -0.2 0.0 -0.2 0.0 -0.2 0.0 No. of Sam111les (x): I 55 ! COUNT TIME: 5 MINUTES i Sample Me*n (N) = Sum(n) + (x) Sample Mean (N) : ! 1.16 ! Standard D;viation (Sd) = SQRT [(n-N)2 + (x

  • 1)]

Standard Qeviation: ~ 2 Std Oej,iations: ~ 15 1 -0.2 0.0 Degree of F,eedom(df).= (x)

  • 1 Data listed on Table B-1 16 1

-0.2 0.0 17 1 -0.2 0.0 18 1 -0.2 0.0 19 1 -0.2 0.0 20 1 -0.2 0.0 21 1 -0.2 0.0 22 1 -0.2 0.0 23 1 -0.2 0.0 24 1 -0.2 0.0 25 1 -0.2 0.0 26 1 -0.2 0.0 27 1 -0.2 0.0 28 1 -0.2 0.0 29 1 -0.2 0.0 30 1 -0.2 0.0 31 1 -0.2 0.0 32 1 -0.2 0.0 33 1 -0.2 0.0 34 1

.o.2 0.0 35 1

-0.2 0.0 36 1 -0.2* 0.0 37 1 -0.2 0.0 38 1 -0.2 0.0 39 1 -0.2 0.0 40 1 -0.2 o.o 41 1 -0.2 0.0 42 1 -0.2 0.0 43 1 -0.2 0.0 44 1 -0.2 0.0 45 1 -0.2 0.0 46 1 -0.2 0.0 47 2 0.8 0.7 48 2 0.8 0.7 49 2 0.8 0.7 50 2 0.8 0.7 (df) = 1 1.688 I Area's Average Level (All) = (N) + (df) x [(Sd)/SQRT(x)] (AJJ)= §EpCi/gTh (NAT) GUIDELINE VALUE: pCi/gTh (NAT) Acceptable Level: pCi/gTh (NAT) TABLE B -1 FactorsJor Comparision of Survey Data with Guidelines (df) 95°/o 97.5"/o (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 i 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 the listed values. 60 is (B) I 1.684 I 95% I 10.0 3.5 (df) high value{Z) (df) low v,tue(Y) 40 is(A) I 1.697 I 95% l 0.0 0.0 54 is calculated as follow: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 64 7.5 Sum(n) Sum(n-N)' PAGE 1 OF 2 a:IGARDTCMP

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE PHASE II, SUB-AREA 'G' - AFFECTED EXPANDED ROADWAY - DEPTH 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 2 0.84 0.70 101 0.00 0.00 52 2 0.84 0.70 10~ 0.00 0.00 53 2 0.84 0.70 103 0.00 0.00 54 2 0.84 0.70 104 0.00 0.00 55 2 0.84 0.70 10$ 0.00 0.00 56 0.00 0.00 10$ 0.00 0.00 57 0.00 0.00 107 0.00 0.00 58 0.00 0.00 108 0.00 0.00 59 0.00 0.00 10$ 0.00 0.00 60 0.00 0.00 110 0.00 0.00 61 0.00 0.00 111 0.00 0.00 62 0.00 0.00 11 ;i 0.00 0.00 63 0.00 0.00 11: 0.00 0.00 64 0.00 0.00 1111 0.00 0.00 65 0.00 0.00 11 0.00 0.00 66 0.00 0.00 11$ 0.00 0.00 67 0.00 0.00 111 0.00 0.00 68 0.00 0.00 118 0.00 0.00 69 0.00 0.00 119 0.00 0.00 70 0.00 0.00 120 0.00 0.00 71 0.00 0.00 121 0.00 0.00 72 0.00 0.00 122 0.00 0.00 73 0.00 0.00 123 0.00 0.00 74 0.00 0.00 12~ 0.00 0.00 75 0.00 0.00 12 0.00 0.00 76 0.00 0.00 12 0.00 0.00 77 0.00 0.00 12,, 0.00 0.00 78 0.00 0.00 12 0.00 0.00 79 0.00 0.00 12 0.00 0.00 80 0.00 0.00 13 I 0.00 0.00 81 ' 0.00 0.00 13 0.00 0.00 82 0.00 0.00 13: 0.00 0.00 83 0.00 0.00 13: 0.00 0.00 84 0.00 0.00 13, 0.00 0.00 85 0.00 0.00 13! 0.00 0.00 86 0.00 0.00 136 0.00 0.00 87 0.00 0.00 137 0.00 0.00 88 0.00 0.00 138 0.00 0.00 89 0.00 0.00 139 0.00 0.00 90 0.00 0.00 140 0.00 0.00 91 0.00 0.00 141 0.00 0.00 92 0.00 0.00 142 0.00 0.00 93 0.00 0.00 143 0.00 0.00 94 0.00 0.00 144 0.00 0.00 95 0.00 0.00 145 0.00 0.00 96 0.00 0.00 146 0.00 0.00 97 0.00 0.00 141 0.00 0.00 98 0.00 0.00 148 0.00 0.00 99 0.00 0.00 149 0.00 0.00 100 0.00 0.00 150 0.00 0.00 10.0 3.5 0.0 0.0 Sum(n) Sum(n-N)2 Sum(n) Sum(n-N)2 PAGE 20F 2 a:\\GARDTCMP

Wednesday, July 21, 1999 3" LN GRID DETECT NUMBER C.P.M. 1 445E-458N 7560 2 446E-463N 7278 3 446E-466N 8116 4 448E-471N 7196 5 448E-475N 7261 6 449E-480N 7129 7 451E-485N 5748 8 452E-490N 5145 9 453E-495N 5392 10 454E-500N 5472 11 455E-504N 6979 12 455E-509N 6929 456E-514N 7112 457E-519N 8055 15 457E-524N 8701 16 458E-529N 8049 17 458E-534N 8140 18 458E-539N 7181 CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G"

  • SURFACE AFFECTED ROADWAY CENTERLINE

~ ICRO MICRO R' R'

SURF 1 METER 7

7 6 7 ! 8 6 I 9 7 I 7 8 I

6 7

6 7

5 7

6 6 4 7 6 6 7 7 8 7 7 8 9 8 . 7 8 ! s 8 ! 7 7 DATE: 2/12/97 0-6" Sample Total-U Th(Nat) 6 2 4 2 7 1 4 1 6 2 4 2 9 2 6 1 6 1 6 1 6 1 8 1 6 2 10 1 10 2 8 2 7 2 7 1 INSTRUMENTS: RESULTSIN: BACKGROUND MDA LUDLUM MICRO 'R' METER - MODEL -19 SfN 111299 LUDLUM 2221, UNSHEILDED 3" X 1/2" Nal DETECTOR SfN 97264 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR BACKGROUND NOT SUBTRACTED REVIEWED BY: .E: AGRWSURF A:\\AGRWSURF.WB2 1J,Q, ~ µR/hr CPM pCi/g DATE: 9 2 6150 N/A Total U 4 10 Th(Nat) 1.5 0.25

Wednesday, July 21, 1999 3" LN GRID DETECT NUMBER C.P.M. 1 459E-544N 7350 2 460E-549N 7425 3 461E-554N 6330 4 463E-559N 6397 5 465E-563N 6945 6 467E-567N 6078 7 470E-572N 6011 8 472E-576N 5564 9 475E-580N 5590 10 479E-584N 6012 11 482E-587N 5682 12 486E-591N 5162 13 490E-594N 5756 495E-596N 5578 499E-597N 5676 16 504E-598N 6810 17 509E-599N 7868 18 514E-598N 7542 INSTRUMENTS: LUDLUM MICRO 'R' METER - MODEL

  • 19 SIN 111299 CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G"
  • SURFACE AFFECTED ROADWAY CENTERLINE I

MICRO MICRO

R' R'

SURF 1 METER I 7 7 l 7 7 7 8 i 6 7 7 8 7 5 5 6 6 5 5 4 6 7 5 6 6 5 7 7 7 7 5 6 6 7 8 7 9 8 RESULTS IN: µR/hr LUDLUM 2221, UNSHEILDED 3" X 1/2" Nal DETECTOR S/N 97264 CPM CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g BACKGROUND NOT SUBTRACTED V.a. ~ REVIEWED BY: DATE: FILE: AGRWSURF A:\\AGRWSURF.WB2 DATE: 2/12/97 0-6" Sample Total-U Th (Nat) 9 1 6 1 3 1 4 1 5 1 7 1 6 2 8 1 5 1 7 1 5 1 9 1 5 1 8 1 8 1 5 2 11 1 7 2 BACKGROUND MDA 9 2 6150 N/A Total U 4 10 Th(Nat) 1.5 0.25 7-J-l--77

Wednesday, July 21, 1999 3 LN GRID DETECT NUMBER C.P.M. 1 519E-598N 7328 2 524E-596N 6474 3 528E-594N 6828 4 533E-593N 6656 5 538E-591N 7320 6 542E-590N 7414 7 548E-589N 7526 8 552E-589N 8120 9 557E-588N 7568 10 562E-588N 7926 11 567E-589N 6522 12 572E-589N 7158 13 578E-590N 7556 ti 581E-591N 7614 586E-592N 7776 16 591 E-594N 8076 17 595E-597N 7582 18 599E-600N 8042 INSTRUMENTS: LUDLUM MICRO 'R' METER - MODEL -19 SIN 111299 CIMARflON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" - SURFACE AFFECTED ROADWAY CENTERLINE 1\\/ICRO MICRO R' R' !)URF 1 METER 8 7 7 7 7 7 7 8 9 7 7 6 7 7 9 7 7 7 8 7 7 6 7 7 8 7 8 8 8 8 8 8 7 7 8 9 RESULTS IN: µR/hr LUDLUM 2221, UNSHEILDED 3" X 1/2" Nal DETECTOR S/N 97264 CPM ClMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g BACKGROUND NOT SUBTRACTED lryd!c:':< REVIEWED BY: V.q_. DATE: FILE: AGRWSURF A:'AGRWSURF.WB2 DATE* 2/12/97 0-6" Sample Total-U Th (Nat) 7 1 9 2 4 1 7 2 6 1 7 1 4 2 10 2 8 2 5 1 10 1 9 1 6 1 5 1 5 1 10 2 6 1 6 1 BACKGROUND MDA 9 2 6150 N/A Total U 4 10 Th(Nat) 1.5 0.25 7- ~ 2 - rz

Wednesday, July 21, 1999 3" LN GRID DETECT NUMBER C.P.M. 1 603E-604N 6688 2 607E-607N 8336 3 611E-611N 7866 4 614E-614N 7890 5 617E-618N 8356 6 620E-622N 8192 7 623E-627N 8180 8 626E-631 N 7220 9 628E-635N 7400 10 631E-639N 7610 11 634E-643N 7760 12 636E-648N 8010 13 639E-651N 6774 4 642E-655N 7266 646E-659N 7780 16 649E-662N 7014 17 651 E-665N 6726 18 657E-668N 7420 INSTRUMENTS: LUDLUM MICRO 'R' METER* MODEL - 19 SIN 111299 CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" - SURFACE AFFECTED ROADWAY CENTERLINE MICRO MICRO I R' R' SURF 1 METER 7 8 9 7 8 8 7 7 9 8 9 7 8 8 8 8 7 7 8 8 9 8 7 7 7 8 7 7 8 8 6 6 7 7 7 6 RESULTS IN: µR/hr LUDLUM 2221, UNSHEILOEO 3" X 1/2" Nal DETECTOR SIN 97264 CPM CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g BACKGROUND NOT SUBTRACTED 1-J~ G... ~ REVIEWED BY: DATE: FILE: AGRWSURF A:\\AGRWSURF.WB2 DATE* 2/12/97 0-6" Sample Total-U Th (Nat) 8 1 7 2 8 1 4 1 5 2 6 2 7 2 5 1 8 1 6 1 7 1 10 1 10 1 4 1 6 1 6 1 6 1 5 1 BACKGROUND MDA 9 2 6150 NIA Total U 4 10 Th(Nat) 1.5 0.25 ?-)..]_- 97

Wednesday, July 21, 1999 3" LN GRID DETECT NUMBER C.P.M. 1 662E-671N 6792 2 666E-673N 6390 3 671 E-675N 7946 4 676E-677N 7588 5 681 E-678N 6984 6 686E-678N 7432 7 690E-678N 7262 8 695E-678N 6824 9 700E-676N 6616 10 705E-675N 5970 11 710E-673N 7082 12 714E-670N 6156 13 718E-668N 6454 722E-665N 6844 726E-662N 6414 16 730E-659N 5824 17 734E-656N 5642 18 738E-654N 5324 INSTRUMENTS: LUDLUM MICRO 'R' METER - MODEL - 19 S/N 111299 I CIMA~RON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" - SURFACE AFFECTED ROADWAY CENTERLINE J\\lllCRO MICRO i R' R' SURF 1 METER 7 6 7 7 7 7 8 8 8 7 7 8 6 7 7 7 7 7 7 6 7 7 6 7 7 7 7 7 7 7 5 5 6 7 6 5 RESULTS IN: µR/hr LUDLUM 2221, UNSHEILDED 3" X 1'2" Hal DETECTOR SIN 97264 CPM CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g BACKGROUND NOT SUBTRACTED ~_Q, ~ REVIEWED BY: DATE: FILE: AGRWSURF A:\\AGRWSURF. WB2 DATE: 2/12/97 0-6" Sample Total-U Th (Nat) 5 1 8 1 8 1 6 2 6 2 8 1 6 2 5 1 7 1 6 1 10 1 5 1 6 1 6 1 6 1 5 1 6 1 7 1 BACKGROUND MDA 9 2 6150 N/A Total U 4 10 Th(Nat) 1.5 0.25 7 *<J. - 7 1

Wednesday, July 21, 1999 3" LN GRID DETECT NUMBER C.P.M. 1 742E-651 N 5760 2 746E-648N 6010 3 750E-645N 5930 4 754E-642N 6268 5 759E-640N 6884 6 763E-638N

  • 5410 7

768E-635N 5588 8 772E-633N 4802 9 777E-632N 5820 10 782E-630N 6418 11 787E-629N 6146 12 791 E-628N 6142 13 796E-628N 6080 802E-627N 6614 807E-627N 6374 16 812E-625N 6030 17 816E-624N 5966 18 821 E-622N 6266 INSTRUMENTS: LUDLUM MICRO 'R' METER - MODEL -19 S/N 111299 CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" - SURFACE AFFECTED ROADWAY CENTERLINE MICRO MICRO R' R' SURF 1 METER 5 7 5 7 5 7 7 6 8 7 5 6 7 7 5 5 6 6 6 5 7 7 7 6 7 6 6 6 6 6 6 5 6 6 6 6 RESULTS IN: µR/hr LUDLUM 2221, UNSHEILDED 3" X 1/2" Nal DETECTOR S/N 97264 CPM CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g BACKGROUND NOT SUBTRACTED 1-t.) - Q - ~ REVIEWED BY: DATE: FILE: AGRWSURF A:\\AGRWSURF.WB2 DATE* 2/12/97 0-6" Sample Total-U Th (Nat) 8 1 6 1 6 1 7 1 8 2 10 1 8 1 6 1 10 1 6 1 9 1 11 1 9 1 7 2 6 1 7 1 8 1 6 1 BACKGROUND MDA 9 2 6150 NIA Total U 4 10 Th(Nat) 1.5 0.25 7-)-2---9 7

Wednesday, July 21, 1999 3" LN GRID DETECT NUMBER C.P.M. 1 826E-621 N 6372 2 831E-620N 6328 3 835E-619N 6492 4 840E-618N 5932 5 845E-617N 6232 6 850E-615N 6240 7 855E-614N 5786 8 860E-613N 5560 9 865E-612N 5288 10 870E-610N 5212 11 874E-608N 5640 12 879E-607N 5078 13 883E-606N 5394 888E-604N 4834 893E-602N 5142 16 897E-600N 5436 17 902E-599N 5848 18 907E-596N 7978 INSTRUMENTS: LUDLUM MICRO 'R' METER. MODEL -19 SIN 111299 CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G"

  • SURFACE AFFECTED ROAOWA Y CENTERLINE MICRO MICRO R'

R' SURF 1 METER 7 6 7 6 6 7 7 6 7 6 7 8 7 6 7 7 6 6 6 5 5 6 5 5 6 6 5 6 5 6 5 5 6 5 7 7 RESULTS IN: µR/hr LUDLUM 2221, UNSHEILDED 3" X 1/2" Nal DETECTOR SIN 97264 CPM ClMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g BACKGROUND NOT SUBTRACTED ~-a. ~ REVIEWED BY: DATE: FILE: AGRWSURF A:\\AGRWSURF.WB2 DATE: 2/12/97 0-6 Sample Total-U Th (Nat) 4 1 6 1 8 1 8 1 11 1 12 1 4 1 7 1 10 1 8 1 4 2 6 1 3 1 10 1 10 1 8 2 5 1 9 1 BACKGROUND MDA 9 2 6150 NIA Total u 4 10 Th(Nat) 1.5 0.25 Z ~ J.-- 2..- r 7'

Wednesday, July 21, 1999 3" LN GRID DETECT NUMBER C.P.M. 1 911E-595N 7714 2 916E-593N 7160 3 4 5 6 7 8 9 10 11 12 13

  • 16 17 18 INSTRUMENTS:

LUDLUM MICRO 'R' METER - MODEL

  • 19 SIN 111299 CIMARRON CORPORATION CIMARRON FACILITY PHASE II, SUB-AREA "G" -SURFACE AFFSCTED ROADWAY CENTERLINE I

MICRO MICRO

R' R'
t>URF 1 METER 8

7 i 7 7 i RESMLTS IN: µR/hr LUDLUM 2221, UNSHEILDED 3" X 112" Na! DETECTOR SIN 97264 CPM CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g BACKGROUND NOT SUBTRACTED ~.G. ~ REVIEWED BY: DATE: FILE: AGRWSURF A:\\AGRWSURF.WB2 DATE: 2/12/97 0-6" Sample Total-U Th (Nat) 7 2 9 1 BACKGROUND MDA 9 2 6150 NIA Total U 4 10 Th(Nat) 1.5 0.25 7-2. 2- --??

Thursday July 22, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED ROADWAY - CENTERLINE CIMARRON SOIL COUNTER URANIUM SAMPLE RESULTS SITE BACKGROUND OF 4 pCi/g NOT SUBTRACTED MARCH /1997 A:\\POGRURAO.WB2 URANIUM SA PLE RESULTS SURVE~ DATA ' i 14 ~ m:-,-i,,~rmrrmmrrrTr"T1Tftmi,r--,----;,;--r=rr:rm, 12 --------',4-'!IHSfP' 10..,...:...:;~~ 4 2 0 URANIUM SAMPLE RESULTS FREQUENCY DISTRIBUTION (/') ~50 -~-------------;---- a.. ~ 40 - ---+------,- ~-------;---,--- (/') t 30 -; -------'- ffi 20.-1 --- Ill ~ 10 ' z 0 NUMBER OF SAMPLES AVERAGE SAMPLE MINIMUM SAMPLE MAXIMUM SAMPLE STANDARD DEVIATION 128 7 3 12 2

Thursday, July 22, 1999 PHASE II, SUB-ARE~ "G" - SURFACE AFFECTED ROADWAY - CENTERLINE CIMARRON SOIL COUNTER THORIUM SAMPWE RESULTS SITE BACKGROUND OF 1.5 pCi/g NOT SUBTRACTED MARCH 1 97 A:\\POGRTHOO.WB2 THORIUM SAM LE RESULTS 2.5 1 5 * -5!'. 0 C. 1 0.5 0 THORIUM SAMPLE RESULTS FREQUENCY D1$TRIBUTION ~Ci/g NUMBER OF SAMPLES AVERAGE SAMPLE MINIMUM SAMPLE MAXIMUM SAMPLE STANDARD DEVIATION 128 1 1 2 0

Thursday, July 22, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED ROADWAY - CENTERLINE MICRO-R METER READINGS AT SURFACE LUDLUM MODEL 19, 5/N 111299 RESULTS IN µR/hr A:\\POGRMRS0.WB2 MARCH 1~97 MICRO 'R' READINGS SURVE~ DATA MICRO 'R' READINGS FREQUENCY DISTRIBUTION ~60 -. ---~~~~~~- (!) ~* - 250 ~~-~ 0 ~40 - --- 0:::

u. 30 _

0 c:::20--~ LU ~ 10 '

)

z O ' 5 6 7 8 µR/hr NUMBER OF READINGS AVERAGE READING MINIMUM READING MAXIMUM READING STANDARD DEVIATION 9 128 7 4 9 1

Thursday, July 22, 1999 PHASE II, SUB-AREA '~G" - SURFACE AFFECTED ROADWAY - CENTERLINE MICRO-R READINGS 1 METER ABOVE SURFACE LUDLUM MODEL 19, 5/N 111299 RESULTS IN µR/hr A:\\POG RM R DO. WB2 MARCH 1~97 MICRO 'R' EADINGS SURVEY!DATA 6 E 0::

1. 4 :

2 MICRO 'R' ~EADINGS FREQUENCY DISTRIBUTION 0060 ----->------,--~-~~ CJ ~50----+-- Cl ~ 40 -, ---- 0::

u. 30 -r---~

0 I-; o:: 20.._! - ---+- w 1-' - ~ ~ 10 ~ Q I µ~/hr I NUMBER OF READINGS AVERAGE READING MINIMUM READING MAXIMUM READING STANDARD DEVIATION 9 128 7 4 9 1

Thursday, July 22, 1999 PHASE II, SUB-AREA "G" - SURFACE A:\\POGR3DEO.WB2 AFFECTED ROADWAY - CENTERLINE GROSS GAMMA REAblNGS IN CPM LUDLUM MODEL 22~1, 5/N 97264 BACKGROUND AVERAGE: 6150 MARCH 1* 97 3" Nal DETECT R READINGS SURVEY!DATA ~ a.. o 4000 2000 0 t 3" Nal DETECTOR READINGS FREQUENCY DISTRIBUTION 25, (/) I (!) 1.___

i ~--, --+--~ -+--------------

z 20,-,..* '-i '. '-+--- 1 1----'---i-'-~..-;---+--'----+-- o l <{

---.'--;-----.----+-------Hla+------+----

~ 15 ----.....-----.- LL. O 10 ~--'lla-+--+---,- cr w OJ 5

a:

~ ----- ~ z i O 4840 5590 5970 61450 7220 7980 8705 CPM NUMBER OF READINdS AVERAGE READING MINIMUM READING MAXIMUM READING STANDARD DEVIATION 128 6710 4802 8701 934

CIMARRON CORPORATION - CIMARRON FAiCILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE PHASE II, SUB-AREA 'G' -AFFECTED ROADWAY - CENTERLINE -SURFACE Number n 1 3 2 3 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 4 11 4 12 4 13 4 14 5 n=p C"/ TOTAL U I.I (n-N) (n-N)* -3.9 15.2 -3.9 15.2 -2.9 8.4 -2.9 8.4 -2.9 8.4 -2.9 8.4 -2.9 8.4 -2.9 8.4 -2.9 8.4 -2.9 8.4 -2.9 8.4 -2.9 8.4 -2.9 8.4 -1.9 3.6 No. of Sam~les (x) : I.1 28 ! COUNT TiME: 5 MINUTES Sample Me4n (N) = Sum(n) + (x) Sample Mein (N) : I 6.90 j Standard Deviation (Sd) = SQRT [(n-N)2 + (x. 1)1 Standard ~. evlatlon: ~ 2 Std Deviations: ~ 15 5 -1.9 3.6 Degree of Fteedom(df}.:: (x) - 1 Data listed on Table B-1 16 s -1.9 3.6 17 s -1.9 3.6 18 5 -1.9 3.6 19 s -1.9 3.6 20 5 -1.9 3.6 21 s -1.9 3.6 22 5 -1.9 3.6 23 5 -1.9 3.6 24 5 -1.9 3.6 25 5 -1.9 3.6 26 5 -1.9 3.6 27 5 -1.9 3.6 28 5 -1.9 3.6 29 5 -1.9 3.6 30 6 -0.9 0.8 31 6 -0.9 0.8 32 6 -0.9 0.8 33 6 -0.9 0.8 34 6 ~0.9 0.8 35 6 -0.9 0.8 36 6 -0.9" 0.8 37 6 -0.9 0.8 38 6 -0.9 0.8 39 6 -0.9 0.8 40 6 -0.9 0.8 41 6 -0.9 0.8 42 6 -0.9 0.8 43 6 -0.9 0.8 44 6 -0.9 0.8 45 6 -0.9 0.8 46 6 -0.9 0.8 47 6 -0.9 0.8 48 6 -0.9 0.8 49 6 -0.9 0.8 50 6 -0.9 0.8 355.0 32.5 272.0 243.7 0.0 0.0 0.0 0.0 (df} = 1 1.658 I Area's Average Level (A1,1) = (N) + (df) x [(Sd)/SQRT(x)] (A1,1) = ~ pCi/gU TOTAL U GUIDELINI; VALUE: pCi/gU TOTAL u Acceptable Level: pCi/gU TOT AL U TABLE B -1 Factors or Comparision of Survey Data with Guidelines (df) 95% 97.5°/o (df) 95"/o 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. 400 is (B) I 1.649 I 120 is(A) I 1.658 I (df) high value(Z) {df) low value(Y) Desired value(df) (X) 127 is calculated as follow: EXP[( (Ln(Bl-Ln(A)) + (Z-Y)) (X-Y) + Ln(A)] The (df) val~e for (X) 127 1.658 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 ~Y: DATE: 7-~/ 0.0 0.0 883 473.7 REVIEWED ~Y: "2cJ, 4. ~ DATE: )- )..')..-79' Sum(nl Sumfn-N\\* PAGE 1 OF 2 a :\\GAPCI IR'r':P

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE PHASE II, SUB-AREA 'G' - AFFECTED ROADWAY - CENTERLINE - SURFACE n = pCi/g TOTAL U - n = pCi/g TOTAL U Number n {n-N) (n-N)2 Num&er n (n*N) (n-N)2 51 6 -0.90 0.81 101 8 1.10 1.21 52 6 -0.90 0.81 102 8 1.10 1.21 53 6 -0.90 0.81

10.

9 2.10 4.42 54 6 -0.90 0.81 10.1 9 2.10 4.42 55 6 -0.90 0.81 10~ 9 2.10 4.42 56 6 -0.90 0.81 10E 9 2.10 4.42 57 6 -0.90 0.81

10i, 9

2.10 4.42 58 6 -0.90 0.81 10 9 2.10 4.42 59 6 -0.90 0.81 10 9 2.10 4.42 60 6 -0.90 0.81 11 9 2.10 4.42 61 6 -0.90 0.81 111 9 2.10 4.42 62 6 -0.90 0.81 114 10 3.10 9.62 63 6 -0.90 0.81 113 10 3.10 9.62 64 7 0.10 0.01 11~ 10 3.10 9.62 65 1 0.10 0.01 11 10 3.10 9.62 66 7 0.10 0.01 11 10 3.10 9.62 67 7 0.10 0.01 11 10 3.10 9.62 68 7 0.10 0.01 11 10 3.10 9.62 69 7 0.10 0.01 11 10 3.10 9.62 70 7 0.10 0.01 12C 10 3.10 9.62 71 7 0.10 0.01 1211 10 3.10 9.62 72 7 0.10 0.01 122 10 3.10 9.62 73 7 0.10 0.01 123 10 3.10 9.62 74 7 0.10 0.01 124 10 3.10 9.62 75 7 0.10 0.01 125 11 4.10 16.82 76 7 0.10 0.01 128 11 4.10 16.82 77 7 0.10 0.01 127 11 4.10 16.82 78 7 0.10 0.01 12~ 12 5.10 26.03 79 7 0.10 0.01 129 0.00 0.00 80 7 0.10 0.01 130 0.00 0.00 81 7 '0.10 0.01 131' 0.00 0.00 82 7 0.10 0.01 132 0.00 0.00 83 8 1.10 1.21 13~ 0.00 0.00 84 8 1.10 1.21 134 0.00 0.00 85 8 1.10 1.21 13~ 0.00 0.00 86 8 1.10 1.21 136 0.00 0.00 87 8 1.10 1.21 137 0.00 0.00 88 8 1.10 1.21 138 0.00 0.00 89 8 1.10 1.21 139 0.00 0.00 90 8 1.10 1.21 140 0.00 0.00 91 8 1.10 1.21 141 0.00 0.00 92 8 1.10 1.21 142 0.00 0.00 93 8 1.10 1.21 143 0.00 0.00 94 8 1.10 1.21 144 0.00 0.00 95 8 1.10 1.21 145 0.00 0.00 96 8 1.10 1.21 146 0.00 0.00 97 8 1.10 1.21 147 0.00 0.00 98 8 1.10 1.21 148 0.00 0.00 99 8 1.10 1.21 149 0.00 0.00 100 8 1.10 1.21 150 0.00 0.00 355.0 32.5 i 272.0 243.7 Sum(n) Sum(n*N)' I Sum(n) Sum(n-N)2 P.ar.i= ? n~ ?

CIMARRON CORPORATION - CIMARRON FAC:ILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE PHASE II, SUB-AREA 'G' - AFFECTED ROADWAY - CENTERLINE - SURFACE n=p c*t h (NA r J T T) Number n (n-N) (n-N)' 1 1 -0.2 0.1 2 1 -0.2 0.1 3 1 -0.2 0.1 4 1 -0.2 0.1 5 1 -0.2 0.1 6 1 -0.2 0.1 7 1 -0.2 0.1 8 1 -0.2 0.1 9 1 -0.2 0.1 10 1 -0.2 0.1 11 1 -0.2 0.1 12 1 -0.2 0.1 13 1 -0.2 0.1 14 1 -0.2 0.1 15 1 -0.2 0.1 16 1 -0.2 0.1 17 1 -0.2 0.1 18 1 -0.2 0.1 19 1 -0.2 0.1 20 1 -0.2 0.1 21 1 -0.2 0.1 22 1 -0.2 0.1 23 1 -0.2 0.1 24 1 -0.2 0.1 25 1 -0.2 0.1 26 1 -0.2 0.1 27 1 -0.2 0.1 28 1 -0.2 0.1 29 1 -0.2 0.1 30 1 -0.2 0.1 31 1 -0.2 0.1 32 1 -0.2 0.1 33 1 -0.2 0.1 34 1 -'0.2 0.1 35 1 -0.2 0.1 36 1 -0.2, 0.1 37 1 -0.2 0.1 38 1 -0.2 0.1 39 1 -0.2 0.1 40 1 -0.2 0.1 41 1 -0.2 0.1 42 1 -0.2 0.1 43 1 -0.2 0.1 44 1 -0.2 0.1 45 1 -0.2 0.1 46 1 -0.2 0.1 47 1 -0.2 0.1 48 1 -0.2 0.1 49 1 -0.2 0.1 50 1 -0.2 0.1 52.0 3.8 56.0 16.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 158 23.0 Sum(n) sum(n-Nl' No. of Samples (x) : j 128 I COUNT TIME: 5 MINUTES i Sample Me~n (N) = Sum(n) + (x) Sample Me~n (N) : I 1.23 j Standard D~viation (Sd) = SQRT [(n-N)' + (x - 1)] Standard Deviation: ~ 2 Std Deviations: ~ Degree of F,eedom(df).= (x) - 1 Data listed on Table B-1 (df) = I 1.6s8 I Area's Average Level (Aµ) = (N) + (df) x [(Sd)/SQRT(x)] j' (Aµ)= GUIDEUN VALUE: Acceptable evel; pCi/gTh (NAT) pCi/gTh (NAT) pCi/gTh (NAT) TABLE B-1 Factors for Comparision of Survey Data with Guldelfnes (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. 400 is (B) I 1.649 I 120 is (A) I 1.658 I (df) high value(Z) (df) low value(Y) Desired va1i* (df) (X) 127 is calculated as follow: EXP[( (Ln(B) Ln(A) ) + (Z-Y) ) (X-Y) + Ln(A)] The (df) val e for ) 127 1.658 95% PERFORMED ~Y:'J&-~i.:!.....J.---'-':=...-<"""'?-~- REVIEWED JY:._--"---~..,.....--- 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% DATE: DATE: PAGE 1 OF 2 I I a:IGARCTHCP

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE PHASE II, SUB-AREA 'G' - AFFECTED ROADWAY - CENTERLINE - SURFACE n = pCi/g Th (NAT)

  • n = pCi/g Th (NAT)

Number n (n-N) (n-N)1 Number n (n-Nl (n-N)1 51 1 -0.23 0.05 101 2 0.77 0.59 52 1 -0.23 0.05 102 2 0.77 0.59 53 1 -0.23 0.05 103 2 0.77 0.59 54 1 -0.23 0.05 104 2 0.77 0.59 55 1 -0.23 0.05 105 2 0.77 0.59 56 1 -0.23 0.05 108 2 0.77 0.59 57 1 -0.23 0.05 107! 2 0.77 0.59 58 1 -0.23 0.05 10S 2 0.77 0.59 59 1 --0.23 0.05 10 2 0.77 0.59 60 1 -0.23 0.05 11 2 0.77 0.59 61 1 -0.23 0.05 11t 2 0.77 0.59 62 1 -0.23 0.05 11~ 2 0.77 0.59 63 1 -0.23 0.05 113 2 0.77 0.59 64 1 -0.23 0.05 114 2 0.77 0.59 65 1 -0.23 0.05 115 2 0.77 0.59 66 1 -0.23 0.05 116 2 0.77 0.59 67 1 -0.23 0.05 117 2 0.77 0.59 68 1 -0.23 0.05 11 2 0.77 0.59 69 1 -0.23 0.05 119 2 0.77 0.59 70 1 -0.23 0.05 120 2 0.77 0.59 71 1 -0.23 0.05 121: 2 0.77 0.59 72 1 -0.23 0.05 122 2 0.77 0.59 73 1 -0.23 0.05 123 2 0.77 0.59 74 1 -0.23 0.05 124 2 0.77 0.59 75 1 -0.23 0.05 125 2 0.77 0.59 76 1 -0.23 0.05 126. 2 0.77 0.59 77 1 -0.23 0.05 127 2 0.77 0.59 78 1 -0.23 0.05 128 2 0.77 0.59 79 1 -0.23 0.05 129 0.00 0.00 80 1 -0.23 0.05 130: 0.00 0.00 81 1 '-0.23 0.05 13t 0.00 0.00 82 1 -0.23 0.05 132 0.00 0.00 83 1 -0.23 0.05 133! 0.00 0.00 84 1 -0.23 0.05

134, 0.00 0.00 85 1

-0.23 0.05 135! 0.00 0.00 86 1 -0.23 0.05 136i 0.00 0.00 87 1 -0.23 0.05 137 0.00 0.00 88 1 -0.23 0.05 138 0.00 0.00 89 1 -0.23 0.05 139 0.00 0.00 90 1 -0.23 0.05 140 0.00 0.00 91 1 -0.23 0.05 141 0.00 0.00 92 1 -0.23 0.05 142 0.00 0.00 93 1 -0.23 0.05 143 0.00 0.00 94 1 -0.23 0.05 144 0.00 0.00 95 1 -0.23 0.05 145 0.00 0.00 96 1 -0.23 0.05 146 0.00 0.00 97 1 -0.23 0.05 147 0.00 0.00 98 1 -0.23 0.05 148 0.00 0.00 99 2 0.77 0.59 149: 0.00 0.00 100 2 0.77 0.59 150; 0.00 0.00 52.0 3.8 56.0 16.4 Sum(n) Sum(n-N)2 Sum(n) Sum(n-N)1 PA~!=? ns=?

3040040404 4050050505 5 0 600 6 0 6 0 6 0 640 6 O 6 O 6 0 6 0 6 0 700 70 800 80 80 8090090909 9 0 760 750 74-0 730 720 710 700 690 680 670 660 650 630 620 590 580 570 560 550 530 520 510 500 490 480 470 460 450 420 410 -=--'l,c;;...- ~---1f--*-- ~--- (

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, I I L------------------~ BURIAL AREA #4 340 350 360 370 380 390 400 410 420 4JO 440 450 460 470 480 490 500 510 520 5.30 540 550 560 570 580 590 600 610 620 630 640 650 660 670 680 690 l1 NOTES: 8+ 6 10 + 6 9 11 9 ... + SAMPLES 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. REV. OESCRIPTION \\ ), I --,,i - -. -- / 800 790 780 no 760 750 740 730 720 710 700 ( 690 680 670 660 650 640 630 620 610 B'I': CK'O BY: N'P'D 111': ~TE \\ \\ f _ROAO __ liOO ~. / 590 +... 40 0 40 ~ ~ ORTH" S C A L E I N ME T ERS~~ CIMARRON CORPORATION CIMARRON F AGILITY ORWN. B'I' PHASE II - SUB-AREA G CENTERLINE ROADWAY DATA SURF ACE SOIL SAMPLE RESULTS JE !lf.lE SCALE 9/ 22/ 99 AS SHOWN 580 570 560 550 530 520 510 500 JE 1-----4--------------~~--,~--<~-1--,~--1J08 NO. WR JL O 18 99 DAAMNG HO. 99P0SGCRSS-O REV. 0 0 DRAWING ISSUED.

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