ML19363A004

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Cimarron Corp - Cimarron Facility - Affected Area G - Drainage Centerline
ML19363A004
Person / Time
Site: 07000925
Issue date: 04/23/1998
From:
Cimarron Corp
To:
Office of Nuclear Material Safety and Safeguards
Shared Package
ML19365A023 List:
References
Download: ML19363A004 (46)
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Text

{{#Wiki_filter:* Wednesday, July 28, 1999 LN GRID NUMBER 1 380 E 730 2 385 E 745 3 390 E 750 4 395 E - 753 5 402 E 753 6 408 E 754 7 414 E 756 8 420 E 755 9 425 E 755 10 430 E 757 11 434 E 758 12 440 E 760 13 447 E 761 14 452 E 760 15 458 E 762 16 462 E 763 17 469 E 764 18 474 E 765 19 480 E 765 20 486 E 765 CIMARRON CORPORATION CIMARRON FACILITY AFFECTED AREA "G' - DRAINAGE CENTERLINE Surface Soil Samples 3" MICRO MICRO DETECT R' R' C.P.M.; SURF 1 METER N 9780 10 9 N 9148 : 13 12 N 10316: 10 10 N 10230 12 11 N 10712 10 11 N 10340 10 10 N 10576 11 11 N 10752 11 11 N 8438 12 12 N 10766 12 12 N 10758 10 11 N 10722 11 10 N 10494 11 10 N 10528 11 11 N 10936 11 10 N 10590 10 10 N 10812 10 10 N 10446: 11 10 N 10628; 11 10 N 109361 12 10 DATE: 4/23/98 0-6" Sample Total-U Th (Nat) 19.5 1.9 12.9 1.2 18 2 19 2 21 2 15 2 28 2 19 2 8.3 0.9 24 2 15 2 21 2 18 2 17 2 12 2 21 2 12 2 13 1 14 1 9 2 INSTRUMENTS: RES UL TS IN: BACKGROUND MDA LUDLUM MICRO 'R' METER-MODEL 19 S/N 111299 µR/hr 9 2 LUDLUM 2221, UNSHIELDED 3" X 1/2" Na! DETECTOR SIN 97264 CPM 8500 N/A Total U 4 10 CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g Th(Nat)

1.5 BACKGROUND

NOT SUBTRACTED REVIEWED BY_: __ 1iJ~--*...;;Cl;...;;...., -~---,,,___;;...._=------DA_T_E_:_7_-;._8_-_9--7_ PAGE 1 OF 12 A:\\GADC.WB2

Wednesday, July 28, 1999 LN GRID NUMBER 21 491 E 765 22 497 E 766 23 502 E 766 24 508 E 767 25 513 E 768 26 519 E 769 27 524 E 770 28 530 E 771 29 535 E 771 30 540 E 771 31 545 E 772 32 550 E 772 33 555 E 775 34 560 E 775 35 565 E 775 36 570 E 776 37 575 E 777 38 580 E 778 39 585 E 779 40 590 E 780 CIMARRON CORPORATION CIMARRON FACILITY AFFECTED AREA 'G' - DRAINAGE CENTERLINE Surface Soil Samples 3" MICRO MICRO DETECl R' R' C.P.M. ' SURF 1 METER N 10926 11 11 N 10864 11 10 N 110521 11 11 N 10790! 11 10 N 10838 11 10 N 11126; 12 11 N 11332: 11 10 N 10954: 11 10 N 10996! 11 10 N 10758 11 10 N 11194 12 10 N 11012 12 11 N 10886i 10 11 N 11000 11 10 N 11072 11 10 N 10736 12 11 N 10952 11 10 N 10886 10 11 N 10844 11 11 N 1osga 11 10 DATE: 4/23/98 0-6" Sample Total-U Th (Nat) 25 2 15 2 15 2 16 2 14 2 13 2 16 2 14 1 10 2 9 2 10 2 7 2 8 2 10 3 7 2 9 2 7 2 6 2 7 2 9 2 INSTRUMENTS: RESULTS IN: BACKGROUND MDA LUDLUM MICRO 'R' METER-MODEL 19 S/N 111299 µR/hr 9 2 LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 CPM 8500 NIA Total U 4 10 CJMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g Th(Nat) 1.5 1 BACKGROUND NOT SUBTRACTED PAGE 2 OF 12 REVIEWED BY: 1J.Q. ~ DATE: 1-1-B-r? A:\\GADC.WB2 2

Wednesday, July 28, 1999 LN GRID NUMBER 41 595 E 781 42 600 E 782 43 605 E 783 44 610 E 783 45 615 E 784 46 620 E 785 47 625 E 785 48 630 E 786 49 635 E - 787 50 640 E 788 51 645 E 790 52 650 E 790 53 655 E 790 54 660 E 791 55 665 E 792 56 670 E 792 57 675 E - 794 58 680 E 795 59 685 E 795 60 690 E. - 796 CIMARRON CORPORATION CIMARRON FACILITY AFFECTED AREA 'G' - DRAINAGE CENTERLINE Surface Soil Samples 3" MICRO MICRO DETECT R' R' C.P.M. SURF 1 METER N 10156 10 10 N 10176 10 10 N 10532 10 11 N 10042 10 10 N 9982 10 9 N 9916 10 10 N 9664 10 9 N 9566 10 10 N 9398 11 10 N 9660 10 9 N 9108 9 9 N 9000 8 9 N 8942 9 9 N 8640 8 8 N 9328 9 10 N 9276 10 9 N 9066 9 7 N 8978 10 8 N 8762. 8 8 N 9134 8 8 DATE: 4/23/98 0-6" Sample Total-U Th (Nat} 12 2 14 2 5 2 12 2 8 1 10 1 8 1 8 2 9 2 9 1 7 2 8 1 9 1 12 2 6 2 11 1 6 2 6 1 12 1 6 2 INSTRUMENTS: RES UL TS IN: BACKGROUND MDA LUDLUM MICRO 'R' METER-MODEL 19 SIN 111299 µR/hr LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 CPM CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g BACKGROUND NOT SUBTRACTED g 8500 Total U 4 Th(Nat) 1.5 2 NIA 10 1 PAGE 3 OF 12 REVIEWED BY_: __ J-() ..........,-_~-*-~...;;..+--------D_A_TE_:_7_-J-._8_-... 9 ...... 7 A:\\GADC.WB2 3

Wednesday, July 28, 1999 LN GRID NUMBER 61 695 E 797 62 700 E 798 63 705 E 799 64 710 E 799 65 715 E 803 66 720 E 803 67 725 E 803 68 730 E 802 69 735 E 803 70 740 E 803 71 745 E 805 72 750 E 803 73 755 E 806 74 760 E 807 75 765 E 808 76 770 E 809 77 775 E 809 78 780 E 810 79 785 E 811 80 790 E 811 CIMARRON CORPORATION CIMARRON FACILITY AFFECTED AREA 'G'

  • DRAINAGE CENTERLINE Surface Soil Samples 3"

MICRO MICRO DETECT R' R' C.P.M SURF 1 METER N 9342 g 8 N 9110 10 8 N 8524 9 9 N 8800 8 8 N 7964 8 8 N 8080 7 8 N 7812 9 9 N 8186 7 9 N 7708 9 9 N 8128 7 7 N 7334 8 7 N 8556 9 8 N 8524 9 8 N 8520. 8 7 N 7498 : 8 7 N 8028 j 8 8 N 8152 8 7 N 7758 1 7 7 N 7910 ' 8 7 N 8010, 8 8 DATE: 4/23/98 0-6" Sample Total-U Th (Nat) 14 1 7 1 5 1 6 2 13 1 9 1 8 1 6 1 7 1 10 1 10 1 9 1 5 1 5 1 9 1 4 1 8 1 7 1 12 1 7 1 INSTRUMENTS: RESULTSIN: BACKGROUND MDA LUDLUM MICRO 'R' METER* MODEL 19 SIN 111299 µR/hr g 2 LUDLUM 2221, UNSHIELDED J" X 1/2" Nal DETECTOR SIN 97264 CPM 8500 N/A Total U 4 10 CIMMARON SOIL COUNTER 4" X4" X 16" Nal DETECTOR pCi/g Th(Nat) 1.5 1 BACKGROUND NOT SUBTRACTED PAGE 4 OF 12 REVIEWED BY: DATE: 7-28'- '1? A:\\GADC.WB2 4

Wednesday, July 28, 1999 LN GRID NUMBER 81 795 E 812 82 800 E 812 83 800 E 960 84 800 E 965 85 800 E 970 86 800 E 975 87 800 E 980 88 800 E 985 89 800 E 990 90 805 E 813 91 805 E 945 92 805 E 955 93 805 E - 960 94 805 E 965 95 805 E 970 96 805 E 975 97 805 E 980 98 805 E 985 99 805 E 990 100 807 E 950 INSTRUMENTS: LUDLUM MICRO 'R' METER-MODEL 19 CIMARRON CORPORATION CIMARRON FACILITY AFFECTED AREA 'G' - DRAINAGE CENTERLINE Surface Soil Samples 3" MICRO MICRO DETECT R' R' C.P.M.

  • SURF 1 METER N

7538 8 8 N 6785 7 7 N STANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N ST ANDING WATER STANDING WATER STANDING WATER N 6768 7 7 N 6838 7 8 N 6224 8 8 N STANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N STANDING WATEfl STANDING WATER STANDING WATER N STANDING WA TE~ STANDING WATER STANDING WATER N ST ANDI NG WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N 6888 8 8 RESULTS IN: SIN 111299 µR/hr LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 CPM CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g BACKGROUND NOT SUBTRACTED DATE: 4/23/98 0-6 Sample Total-U Th (Nat) 6 1 7 1 5 1 7 1 7 1 7 1 5 2 11 1 10 1 9 1 3 1 4 1 8 1 3 1 7 1 7 1 5 1 9 1 8 1 6 1 BACKGROUND MDA 9 2 8500 NIA Total U 4 10 Th(Nat) 1.5 1 PAGE 5 OF 12 REVIEWED BY_: _ __;./;().;:;:;._'..;:;:C)__~. --'-6..;;.~~----------D-A_TE_:_7_-_:L_?_-_9_9 A:\\GADC.WB2 5

Wednesday, July 28, 1999 LN GRID NUMBER 101 809 E 940 102 810 E 814 103 810 E 935 104 810 E 970 105 810 E 975 106 810 E 980 107 810 E 985 108 810 E 990 109 811 E 930 110 812 E 920 111 812 E 925 112 815 E 814 113 815 E 915 114 815 E 975 115 815 E - 980 116 815 E 985 117 816 E 910 118 817 E 905 119 818 'E 900 120 819 E 895 INSTRUMENTS: CIMARRON CORPORATION CIMARRON FACILITY AFFECTED AREA 'G' - DRAINAGE CENTERLINE Surface Soil Samples 3" MICRO MICRO DETECT R' R' C.P.M. SURF 1 METER N 6714 ' 8 7 N 6008

  • 6 7

N 7264 7 7 N STANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N STANDING WATEfl STANDING WATER STANDING WATER N 7634 8 7 N 7480 8 8 N 7264 8 9 N 6022 6 6 N 7472 7 7 N STANDING WATER ST ANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N 7682 9 9 N 7450 8 8 N 7620 7 7 N 6800 8 8 RESULTS IN: LUDLUM MICRO 'R' METER - MODEL 19 S/N 111299 µR/hr LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR S/N 97264 CPM CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g DATE: 4/23/98 0-6" Sample Total-U Th (Nat} 6 1 3 1 6 1 9 1 6 2 6 1 10 1 7 1 10 1 5 1 6 1 6 1 6 1 5 1 9 1 11 1 5 1 4 1 7 1 6 1 BACKGROUND MDA 9 2 8500 NIA Total U 4 10 Th(Nat} 1.5 1 BACKGROUND NOT SUBTRACTED REVIEWED BY_: __ 1J.-~ __ Q.... ___..~-.;....,F-=--------D_A_T_E_:_7_-z_8'_--_l __ Y PAGE 6 OF 12 A:\\GADC.WB2 6

Wednesday, July 28, 1999 CIMARRON CORPORATION CIMARRON FACILITY AFFECTED AREA 'G' - DRAINAGE CENTERLINE Surface Soil Samples 3" MICRO MICRO LN GRID DETECT R' R' NUMBER C.P.M. SURF 1 METER 121 820 E 680 N 3220* 9 10 122 820 E 815 N 6252 7 6 123 820 E 975 N 7840 8 8 124 820 E 980 N 9602 9 8 125 821 E 675 N 2840* 9 10 126 821 E 685 N 2790* 10 10 127 821 E 890 N 7226 7 8 128 822 E 670 N 3240* g 9 129 822 E 885 N 6422 : 7 8 130 823 E 880 N 6364, 8 7 131 825 E 690 N 2410* : 8 9 132 825 E 815 N 5978 7 6 133 825 E 875 N 7294 8 8 134 825 E 975 N 8038 9 8 135 826 E 662 N 2930* 7 8 136 827 E 865 N 6944 : 7 7 137 827 E 870 N 6694 8 8 138 828 E 860 N 6654 7 7 139 830 E 687 N 311 O* 9 9 140 830 E 817 N 6666 6 6 INSTRUMENTS: RESULTS IN: LUDLUM MICRO 'R' METER - MODEL 19 S/N 111299 µR/hr

  • LUDLUM 2221, SHIELDED 3" X 1/2" Nal DETECTOR S/N 48395 CPM LUDLUM 2221, UNSHIELDED 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 PAGE 7 OF 12 REVIEWED BY:

A:\\GADC.WB2 7 DATE: 4/23/98 0-6" Sample Total-U Th (Nat) 4.7 0.7 7 1 4 1 4 2 3.6 0.8 3 0.7 4 1 4 0.7 2 1 5 1 6.2 0.6 4 1 7 1 7 1 6.5 0.7 4 1 6 1 8 1 3.8 0.9 7 1 BACKGROUND MDA 9 2 2560 NIA 8500 NIA Total U 4 10 Th(Nat) 1.5 1 DATE: 7-7-:)-y'j

Wednesday, July 28, 1999 CIMARRON FACILITY AFFECTED AREA 'G' - DRAINAGE CENTERLINE Surface Soil Samples 3" MICRO MICRO LN GRID DETECT R' R' NUMBER C.P.M. SURF 1 METER 141 830 E 855 N 6496 j 7 8 142 830 E 974 N 8734 9 8 143 831 E 850 N 6196 7 7 144 833 E 845 N STANDING WATER STANDING WATER STANDING WATER 145 834 E 830 N STANDING WA TE.R STANDING WATER STANDING WATER 146 834 E 840 N STANDING WATER STANDING WATER ST ANDING WATER 147 835 E 688 N 2830* 8 9 148 835 E 835 N STANDING WATER STANDING WATER STANDING WATER 149 835 E 973 N 9160 9 9 150 836 E 820 N STANDING WATER STANDING WATER STANDING WATER 151 836 E 825 N 5680 6 6 152 837 E 815 N STANDING WATER STANDING WATER STANDING WATER 153 838 E 810 N STANDING WATER STANDING WATER STANDING WATER 154 839 E 805 N STANDING WATER STANDING WATER STANDING WATER 155 840 E 687 N 2700* 8 9 156 840 E 971 N 9054 10 9 157 842 E 800 N STANDING WATER STANDING WATER STANDING WATER 158 845 E 687 N 3360* 9 10 159 845 E 971 N 9926 10 10 160 848 E 795 N STANDING WATER STANDING WATER STANDING WATER INSTRUMENTS: RESULTS IN: LUDLUM MICRO 'R' METER* MODEL 19 S/N 111299 µR/hr

  • LUDLUM 22.21, SHIELDED 3" X 1/2" Nal DETECTOR S/N 48395 CPM LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 CPM CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g BACKGROUND NOT SUBTRACTED 1J.Q.~

PAGE 8 OF 12 REVIEWED BY: A:\\GAOC.WB2 8 DATE: 4/23/98 0-6" Sample Total-U Th (Nat) 6 1 5 1 9 1 7 1 8 1 4 1 3.5 0.7 5 1 10 1 8 1 5 1 5 1 10 1 4 1 2.7 0.6 7 1 11 1 4.6 0.9 4 2 5 1 BACKGROUND MDA 9 2 2560 NIA 8500 N/A Total U 4 10 Th(Nat) 1.5 1

Wednesday, July 28, 1999 CIMARRON FACILITY AFFECTED AREA 'G' - DRAINAGE CENTERLINE Surface Soil Samples 3" MICRO MICRO LN GRID DETECT R' R' NUMBER C.P.M. SURF 1 METER 161 850 E 687 N 3080* 9 9 162 850 E 795 N STANDING WATER STANDING WATER STANDING WATER 163 850 E 969 N 8814 10 10 164 855 E 688 N 3230* 9 10 165 855 E 790 N STANDING WATER STANDING WATER STANDING WATER 166 855 E 969 N 8858 10 10 167 857 E 785 N STANDING WATER STANDING WATER STANDING WATER 168 860 E 689 N 3390* 10 10 169 860 E 780 N STANDING WATER STANDING WATER STANDING WATER 170 860 E 965 N 8664 10 9 171 863 E 775 N STANDING WATER STANDING WATER STANDING WATER 172 865 E 770 N STANDING WATER STANDING WATER STANDING WATER 173 865 E 963 N 9206 g 9 174 867 E 690 N STANDING WATER STANDING WATER STANDING WATER 175 867 E 765 N STANDING WATER STANDING WATER STANDING WATER 176 869 E 685 N STANDING WATER STANDING WATER STANDING WATER 177 870 E - 680 N STANDING WATER STANDING WATER STANDING WATER 178 870 E 962 N 9234 9 8 179 871 E - 760 N STANDING WATER STANDING WATER STANDING WATER 180 872 E 690 N STANDING WATER STANDING WATER STANDING WATER INSTRUMENTS: RESULTS IN: LUDLUM MICRO 'R' METER - MODEL 19 SIN 111299 µR/hr

  • LUDLUM 2221, SHIELDED 3" X 112" Nal DETECTOR SIN 48395 CPM LUDLUM 2221, UNSHIELDED 3" X 1/2" Nal DETECTOR SIN 97264 CPM CIMMARON SOIL COUNTER 4" X 4" X 16" Nal DETECTOR pCi/g BACKGROUND NOT SUBTRACTED DATE: 4/23/98 0-6" Sample Total-U Th (Nat) 4.9 0.8 4

1 8 1 4.7 0.9 5 1 11 1 7 1 5.9 0.7 8 1 7 1 6 1 7 1 6 1 5 1 5 1 5 1 5 1 5 1 6 1 4 1 BACKGROUND MDA 9 2 2560 N/A 8500 NIA Total U 4 10 Th(Nat) 1.5 PAGE 9 OF 12 REVIEWED BY_: __

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. 4~* """"""'~--,1 ......... """--------D_A_T_E_:_7_-_J-_8'_---_r ___ f A:\\GADC.WB2 9

Wednesday, July 28, 1999 CIMARRON FACILITY AFFECTED AREA 'G' - DRAINAGE CENTERLINE Surface Soil Samples 3" MICRO MICRO LN GRID DETECT R' R' NUMBER C.P.M. SURF 1 METER 181 873 E 755 N STANDING WATER STANDING WATER ST ANDING WATER 182 875 E 962 N 9122 10 10 183 877 E 691 N STANDING WAT!!R STANDING WATER STANDING WATER 184 877 E 750 N STANDING WA T!!R STANDING WATER STANDING WATER 185 880 E 605 N 5198 5 5 186 880 E 963 N 9328 10 10 187 881 E 745 N ST ANDING WAT!!R STANDING WATER STANDING WATER 188 882 E 670 N 4780 5 6 189 882 E 693 N STANDING WAT!iR STANDING WATER STANDING WATER 190 883 E 610 N 5130 6 6 191 883 E 740 N STANDING WATER STANDING WATER STANDING WATER 192 884 E - 665 N 5478 6 6 193 885 E 696 N STANDING WAT$R STANDING WATER STANDING WATER 194 885 E 735 N STANDING WAHR STANDING WATER STANDING WATER 195 885 E 964 N 9116 : 10 10 196 886 E 660 N 5032 1 7 7 197 886 E 730 N STANDING WAT~R STANDING WATER STANDING WATER 198 888 E 615 N 6132 ' 8 7 199 888 E 655 N 5712 1 7 7 200 890 E 700 N STANDING WATfR STANDING WATER STANDING WATER INSTRUMENTS: RESULTS IN: LUDLUM MICRO 'R' METER-MODEL 19 SIN 111299 µR/hr LUDLUM 2221, UNSHIELDED 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 DA TE: 4/23/98 0-6" Sample Total-U Th (Nat) 8 1 6 1 9 1 7 1 6 1 8 1 5 1 10 1 6 1 8 1 10 1 6 1 4 1 5 1 6 1 7 1 4 1 4 1 5 1 6 1 BACKGROUND MDA g 2 8500 N/A Total U 4 10 Th(Nat) 1.5 1 PAGE 10 OF 12 REVIEWED BY_: --~-~*.... Q.._._....~__..._.....__ D_A_T_E_:_7_-_2_8'_,_J_J A:\\GADC.WB2 10

Wednesday, July 28, 1999 LN GRID NUMBER 201 890 E 202 892 E 203 893 E 204 893 E - 205 895 E 206 895 E 207 895 E - 208 895 E 209 897 E 210 898 E 211 898 E 212 898 E 213 898 E 214 900 E 215 900 E 216 905 E - 217 906 E 218 908 E 219 909 E 220 909 E 966 650 618 706 621 625 712 969 645 630 635 640 718 725 974 980 985 990 995 CIMARRON FACILITY AFFECTED AREA *G' - DRAINAGE CENTERLINE Surface Soil Samples 3" MICRO MICRO DETECT R' R' C.P.M. SURF 1 METER N 9032 9 8 N 7386 10 7 N 6518 8 8 N STANDING WATE~ STANDING WATER ST ANDING WATER N 6812 8 7 N 8506 9 9 N STANDING WATER STANDING WATER STANDING WATER N 9914 10 9 N 9214 10 9 N 7982 8 8 N 5302 7 7 N 8140 9 9 N ST ANDING WATER STANDING WATER STANDING WATER N STANDING WATER STANDING WATER STANDING WATER N 9178 i 10 9 N 8808 10 10 N 9420 10 8 N 5740 5 7 N 8772 9 9 1020 N 911 o I 10 10 DATE: 4/23/98 0-6" Sample Total-U Th (Nat) 7 1 5 2 7 1 7 1 8 1 7 1 6 1 8 1 6 2 7 1 4 1 6 2 7 1 7 1 8 1 9 1 6 1 9 1 6 1 5 1 INSTRUMENTS: RESULTS IN: BACKGROUND MDA LUDLUM MICRO 'R' METER-MODEL 19 SIN 111299 µR/hr LUDLUM 2221, UNSHIELDED 3 X 1(2" Nal DETECTOR SIN 97264 CPM CIMMARON SOIL COUNTER 4" X 4" X 16" Na! DETECTOR pCi/g BACKGROUND NOT SUBTRACTED PAGE 11 OF 12 REVIEWED BY: A:\\GADC.WB2 11 9 8500 Total U 4 Th(Nat) 1.5 2 N/A 10 1 DATE: J-J-B'-'17

Wednesday, July 28, 1999 LN GRID NUMBER 221 909 E 222 910 E 223 910 E 224 910 E 225 910 E 226 E 227 E 228 E 229 E 230 E 231 E 232 E 233 E 234 E 235 E 236 E - 237 E 238 E 239 E 240 E CIMARRON FACILITY AFFECTED AREA 'G'

  • DRAINAGE CENTERLINE Surface Soil Samples 3"

MICRO MICRO DETECT R' R' C.P.M. SURF 1 METER 1025 N 9902 11 9 1000 N 9600 11 9 1005 N 9214 9 10 1010 N 9624 10 11 1015 N 9602 10 10 N N N N N N N N N N N N N N i N I i DATE: 4/23/98 0-6" Sample Total-U Th (Nat) 4 1 8 2 4 1 7 2 8 2 INSTRUMENTS: RESULTS IN: BACKGROUND MDA LUDLUM MICRO 'R' METER-MODEL 19 SIN 111299 µR/hr LUDLUM 2221, UNSHIELDED 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 9 8500 Total U 4 Th(Nat) 1.5 2 NIA 10 1 PAGE 12 OF 12 REVIEWED BY_: ___

1,)_...;;.",...d""--. -~'-_,,,__

DA_T_E_:_7_-_2._8'_-.....;.....;1 7 A:\\GADC.WB2 12

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. ) 6<' .0 * ;.o. 50* R£SERYOIR f3 D£SCRIPTI0N 950 1000 1050 100( 950 --- 900 950 1000 1050 NOTES: SAMPLES ARE IN PICO-CURIES PER GRAM UIWIIUM (pCi/g U). CIMARRON GAMMA SPEC SOIL COUNTER SITE SOIL BACKGROUND OF 4 pCi/ g U, NOT SUBTRACTED. 50 ----- 0 so ~ j ~ ORTH" M E T E R S 4~ SCALE IN CIMARRON CORPORATION CIMARRON FACILITY DRWN. f1f PHASE 11 - SUB-AREA G DRAINAGE CENTERLINE DATA SURFACE SOIL SAMPLE RESULTS (),I.TE SCA!£ 7 / 30/ 99 f:.S SHOWN JE 850 800 750 JE WR JL 10 18 9 DRAWING r-<<>. 99P0SGCDSS-O REV. 0 1---t----------------11----1---1---11---.......tJOB NO. 0 DRAWING ISSUED. ... \\ CIM\\SUBARfAG99\\DRA1NAGE\\AFFECTED\\99P00GSS-CTR

Wednesday, July 28, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED DRAINAGE CENTERLINE CIMARRON SOIL COUNTER TOTAL URANIUM SOIL SAMPLE RESULTS SITE BACKGROUND OF 4 pCi/g NOT SUBTRACTED JULY 26,1999 URANIUM SOIL SAMPLES FREQUENCY DISTRIBUTION (f) 140 - w - ---,--~-t-~--~---~ - ,...J 120 - --

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  • 15 I

20 . 25 30 5 pCi/g NUMBER OF SAMPLES 225 AVERAGE SAMPLE 8 MINIMUM SAMPLE 2 MAXIMUM SAMPLE 28 STANDARD DEVIATION 4.2 A:\\GADCURGP.WB2

Wednesday, July 28, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED DRAINAGE CENTERLINE CIMARRON SOIL COUNTER TOTAL THORIUMi SOIL SAMPLE RESULTS SITE BACKGROUND :OF 1.5 pCi/g NOT SUBTRACTED JULY 26, 1999 THORIUM SOIL SAMPLES FREQUENCY DISTRIBUTION Cl) 200.. w ....I ~ 150 <( Cl)

u. 100 0

0::: w 50 a::l ~

i z 0 *-

1 2 3 pCi/g NUMBER OF SAMPLES 225 AVERAGE SAMPLE 1.2 MINIMUM SAMPLE 0.6 MAXIMUM SAMPLE 3 STANDARD DEVIATION 0.5 A:\\GADCTHGP.WB2

Tuesday, July 27, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED DRAINAGE CENTERLINE MICRO-R METER READINGS AT SURFACE LUDLUM MOD,EL 19, S/N 111299 RESULTS IN µR/hr JULY 26, 1999 MICRO "R" READINGS @ SURFACE FREQUENCY; DISTRIBUTION w 40 - CJ z o 30 - ~__;... __ <( w ~20 - -- 0 0::: w 10 - co ~ ~ O ~* i 5 6 7 i 1-8 9 10 11, 12. 13 µR/hr NUMBER OF SAMPLES 167 AVERAGE SAMPLE 9 MINIMUM SAMPLE 5 MAXIMUM SAMPLE 13 STANDARD DEVIATION 2 A:\\GADCMRGP. WB2

Tuesday, July 27, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED DRAINAGE CENTERLINE MICRO-R METER READINGS;AT 1 METER ABOVE SURFACE LUDLUM MODEL 19, S/N 111299 Cl) (9 RESULTS IN µR/hr JULY 26, 1999 MIRCO "R" REAIDINGS @ 1 METER FREQUENCY DISTRIBUTION Z 40 ~--'--- -,.....-~-~~ Cl <( ~ 30 -

;-- ----'-+-

u.. 0 20 ---- 0::: w ~ 10 -, --- z O - 5 6 7 8 9 10 11 12 µR/hr NUMBER OF SAMPLES 167 AVERAGE SAMPLE 9 MINIMUM SAMPLE 5 MAXIMUM SAMPLE 12 STANDARD DEVIATION 1 A:\\GADCMRGP.WB2

Wednesday, July 28, 1999 PHASE II, SUB-AREA *"G" - SURFACE AFFECTED DRAINAGE CENTERLINE GROSS GAMMA READINGS IN CPM LUDLUM MODEL 2221, UNSHIELDED, SIN 97264 BACKGROUND AVERAGES: 8000 I I JµL Y 26, 1999 i Nal 3" DET~CTOR READINGS FREQUENCY DISTRIBUTION I (/) 35 - (9 z 30 ~ 25 w a:: 20 ~ 15 ffi 10 ~ 5 2 O - 7000 ' 8000 9000 10000 11000 12000 CPM NUMBER OF SAMPLES 154 AVERAGE SAMPLE 8711 MINIMUM SAMPLE 4780 MAXIMUM SAMPLE 11332 STANDARD DEVIATION 1684 A:\\GADC3DGP.WB2

Wednesday, July 28, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED DRAINAGE CENTERLINE GROSS GAMMA READINGS IN CPM LUDLUM MODEL 2221, SHIELDED, SIN 48396 BACKGROUND AVERAGES: 2560 JULY 28,1999 Nal 3" DETECTION READINGS FRQUENCY DISTRIBUTION Cf) 7 - ~ 6 ---- -'------+-- ~ 5 - ---- ~ 4 -

+---

~ 3 -----'--- ffi 2 ____ .......__J ~ 1

, z O -

2500 3000 CPM 3500 NUMBER OF SAMPLES 13 AVERAGE SAMPLE 3010 MINIMUM SAMPLE 2410 MAXIMUM SAMPLE 3390 STANDARD DEVIATION 277 A:\\GADC3DGP.WB2

CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA "G" DRAINAGE CENTERLIJME - SURFACE n=p c* u 1/1 TOTAL Number n (n-N) (n-N)1 1 2 -6.0 36.5 2 2.7 -5.3 28.6 3 3 -5.0 25.4 4 3 -5.0 25.4 5 3 -5.0 25.4 6 3 -5.0 25.4 7 3.5 -4.5 20.6 8 3.6 -4.4 19.7 9 3.8 -4.2 18.0 10 4 -4.0 16.4 11 4 -4.0 16.4 12 4 -4.0 16.4 13 4 -4.0 16.4 14 4 -4.0 16.4 15 4 -4.0 16.4 16 4 -4.0 16.4 17 4 -4.0 16.4 18 4 -4.0 16.4 19 4 -4.0 16.4 20 4 -4.0 16.4 21 4 -4.0 16.4 22 4 -4.0 16.4 23 4 -4.0 16.4 24 4 -4.0 16.4 25 4 -4.0 16.4 26 4 -4.0 16.4 27 4 -4.0 16.4 28 4 -4.0 16.4 29 4 -4.0 16.4 30 4.6 -3.4 11.9 31 4.7 -3.3 11.2 32 4.7 -3.3 11.2 33 4.9 -3.1 9.9 34 5 ~3.0 9.3 35 5 -3.0 9.3 36 5 -3.0 ' 9.3 37 5 -3.0 9.3 38 5 -3.0 9.3 39 5 -3.0 9.3 40 5 -3.0 9.3 41 5 -3.0 9.3 42 5 -3.0 9.3 43 5 -3.0 9.3 44 5 -3.0 9.3 45 5 -3.0 9.3 46 5 -3.0 9.3 47 5 -3.0 9.3 48 5 -3.0 9.3 49 5 -3.0 9.3 50 5 -3.0 9.3 294.6 245.2 368.0 34.9 497.2 267.7 438.5 2640.5 0.0 0.0 0.0 0.0 0.0 0.0 1809.8 3942.1 No. of Samples (x) : I 225 I COUNT TIME: 5 MINUTES Sample Me~n (N) = Sum(n) + (x) Sample Me~n (N): I 8.04 I Standard Deviation (Sd) = SQRT [(n-N)2 + (x - 1)] Standard Deviation: ~ 2 Std Deviations: ~ Degree of Freedom(df).= (x) - 1 Data listed on Table B-1 (df) = I 1.65s I Area's Ave~ge Level (Aµ)= (N) + (df) x [(Sd)/SQRT(x)] (A~)= ~ pCi/gU TOTAL U GUIOELJNIIVALUE: pCi/gU TOTAL u Acceptable Level: pCi/gU TOTAL U TABLE 8 -1 Factors or 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 lletween th-e_lis_t_ed_v...,a,_lu_es_. _ (df} high value(Z) ~4_0_0----jf----is.....,,(B.....,)'--+--1_.6_4_9---+-_9_5_%--; (df} low value(Y) 120 is (A) 1.658 95% 1-----1---~-- ---- Desired value(df) (X) 224 is calculated as follow: EXP[( (Ln(B)-Ln(A)) + (Z-Y)) (X*Y) + Ln(A)] The (df) valfle for ( 224 ~.655 95% DATE: DATE: / / 'C 7~ -fJ\\ > 1 l 7 -;2.. 8-?7 Sum(n) Sum(n-N)2 PAGE 1 OF 3 a:\\GADCUCMP

CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDEN AFFECTED AREA "G" DRAINAGE CENTERLINE - SURFACE n ::: pCi/g TOTAL U n = pCi/g TOT AL Number n (n-N) (n*N)2 Number n (n-N) (n-N)' 51 5 -3.04 9.26 101 7 -1.04 1.09 52 5 -3.04 9.26 102 7 -1.04 1.09 53 5 -3.04 9.26 103 7 -1.04 1.09 54 5 -3.04 9.26 104 7 -1.04 1.09 55 5 -3.04 9.26 105 7 -1.04 1.09 56 5 -3.04 9.26 106 7 -1.04 1.09 57 5 -3.04 9.26 10,. 7 -1.04 1.09 58 5 -3.04 9.26 101 7 -1.04 1.09 59 5 -3.04 9.26 1m 7 -1.04 1.09 60 5 -3.04 9.26 11Q 7 -1.04 1.09 61 5.9 -2.14 4.59 111 7 -1.04 1.09 62 6 -2.04 4.18 112 7 -1.04 1.09 63 6 -2.04 4.18 113 7 -1.04 1.09 64 6 -2.04 4.18 114 7 -1.04 1.09 65 6 -2.04 4.18 115 7 -1.04 1.09 66 6 -2.04 4.18 116 7 -1.04 1.09 67 6 -2.04 4.18 117 7 -1.04 1.09 68 6 -2.04 4.18 1H~ 7 -1.04 1.09 69 6 -2.04 4.18 119 7 -1.04 1.09 70 6 -2.04 4.18 120 7 -1.04 1.09 71 6 -2.04 4.18 121' 7 -1.04 1.09 72 6 -2.04 4.18 122 7 -1.04 1.09 73 6 -2.04 4.18 123 7 -1.04 1.09 74 6 -2.04 4.18 124 7 -1.04 1.09 75 6 -2.04 4.18 125 7 -1.04 1.09 76 6 -2.04 4.18 126 7 -1.04 1.09 77 6 -2.04 4.18 127 7 -1.04 1.09 78 6 -2.04 4.18 128 7 -1.04 1.09 79 6 -2.04 4.18 129 7 -1.04 1.09 80 6 -2.04 4.18 13Q 7 -1.04 1.09 81 6 . -2.04 4.18 1311 7 -1.04 1.09 82 6 -2.04. 4.18 132 7 -1.04 1.09 83 6 -2.04 4.18 133 8 -0.04 0.00 84 6 -2.04 4.18 134 8 -0.04 0.00 85 6 -2.04 4.18 135 8 -0.04 0.00 86 6 -2.04 4.18 136/ 8 -0.04 0.00 87 6 -2.04 4.18 137 8 -0.04 0.00 88 6 -2.04 4.18 138 8 -0.04 0.00 89 6 -2.04 4.18 139 8 -0.04 0.00 90 6 -2.04 4.18 140 8 -0.04 0.00 91 6 -2.04 4.18 141 8 -0.04 0.00 92 6 -2.04 4.18 142 8 -0.04 0.00 93 6 -2.04 4.18 143 8 -0.04 0.00 94 6 -2.04 4.18 144 8 -0.04 0.00 95 6.2 -1.84 3.40 145 8 -0.04 0.00 96 6.5 -1.54 2.38 146 8 -0.04 0.00 97 7 -1.04 1.09 147 8 -0.04 0.00 98 7 -1.04 1.09 148 8 -0.04 0.00 99 7 -1.04 1.09 149! 8 -0.04 0.00 100 7 -1.04 1.09 150! 8 -0.04 0.00 i 294.6 245.2 368.0 34.9 Sum(n) Sum(n*N)2 Sum(n) Sum(n-N)' PAGE 2 OF 3 a:IGADCUCMP

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDEN AFFECTED AREA "G" DRAINAGE CENTERLINE - SURFACE n = pCi/g TOTAL u c*, TOTAL

  • n=p I g Number n

(n-N) (n-N)2 Number n (n-N) (n-N)2 151 8 -0.04 0.00 201 13 4.96 24.57 152 8 -0.04 0.00 202 13 4.96 24.57 153 8 -0.04 0.00 203; 14 5.96 35.48 154 8 -0.04 0.00 204': 14 5.96 35.48 155 8.3 0.26 0.07 205i 14 5.96 35.48 156 9 0.96 0.91 206 14 5.96 35.48 157 9 0.96 0.91 2071 14 5.96 35.48 158 9 0.96 0.91 208! 15 6.96 48.39 159 9 0.96 0.91 209' 15 6.96 48.39 160 9 0.96 0.91 210 15 6.96 48.39 161 9 0.96 0.91 211 15 6.96 48.39 162 9 0.96 0.91 2121 16 7.96 63.31 163 9 0.96 0.91 213 16 7.96 63.31 164 9 0.96 0.91 214 17 8.96 80.22 165 9 0.96 0.91 215 ' 18 9.96 99.13 166 9 0.96 0.91 216 18 9.96 99.13 167 9 0.96 0.91 217 19 10.96 120.04 168 9 0.96 0.91 218 19 10.96 120.04 169 9 0.96 0.91 219 19.5 11.46 131.25 170 9 0.96 0.91 220 21 12.96 167.87 171 9 0.96 0.91 221 : 21 12.96 167.87 172 9 0.96 0.91 222 i 21 12.96 167.87 173 9 0.96 0.91 223 24 15.96 254.61 174 10 1.96 3.83 224 : 25 16.96 287.52 175 10 1.96 3.83 225, 28 19.96 398.26 176 10 1.96 3.83 226 : 0.00 0.00 177 10 1.96 3.83 227 ' 0.00 0.00 178 10 1.96 3.83 228 0.00 0.00 179 10 1.96 3.83 229 : 0.00 0.00 180 10 1.96 3.83 230 1 0.00 0.00 181 10 . 1.96 3.83 231 0.00 0.00 182 10 1.96 3.83 232 0.00 0.00 183 10 1.96 3.83 233 0.00 0.00 184 10 1.96 3.83 234 : 0.00 0.00 185 10 1.96 3.83 235 ! 0.00 0.00 186 10 1.96 3.83 236 o.oo 0.00 187 11 2.96 8.74 237 0.00 0.00 188 11 2.96 8.74 238 0.00 0.00 189 11 2.96 8.74 239 0.00 0.00 190 11 2.96 8.74 240 0.00 0.00 191 11 2.96 8.74 241 o.oo 0.00 192 12 3.96 15.65 242 0.00 0.00 193 12 3.96 15.65 243 o.oo 0.00 194 12 3.96 15.65 244 0.00 0.00 195 12 3.96 15.65 245 0.00 0.00 196 12 3.96 15.65 246 0.00 0.00 197 12 3.96 15.65 247 0.00 0.00 198 12 3.96 15.65 248 0.00 0.00 199 12.9 4.86 23.59 249 0.00 0.00 200 13 4.96 24.57 250, 0.00 0.00 497.2 267.7 438.5 2640.5 Sum(n) Sum(n-N)2 Sum(n) Sum(n-N)' PAGE 3 OF 3 a:\\GADCUCMP

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA "G" DRAINAGE CENTERLINE - SURFACE n = pCi/g Th (NAT) Number n (n-N) (n-N)2 1 0.6 -0.6 0.4 2 0.6 -0.6 0.4 3 0.7 -0.5 0.3 4 0.7 -0.5 0.3 5 0.7 -0.5 0.3 6 0.7 -0.5 0.3 7 0.7 -0.5 0.3 8 0.7 -0.5 0.3 9 0.8 -0.4 0.2 10 0.8 -0.4 0.2 11 0.9

  • 0.3 0.1 12 0.9

-0.3 0.1 13 0.9 -0.3 0.1 14 0.9 -0.3 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 50.0 3.0 50.0 3.0 82.1 19.2 51.0 16.8 No. of Samples (x) : I 225 I COUNT TIME: 5 MINUTES Sample Me.n (N) = Sum(n) + (x) Sample Me~n (N) : I 1.24 I Standard D~viation (Sd) = SQRT [(n-N)" + (x -1)1 Standard o/eviation: ~ 2 Std Dej,iations: ~ Degree of F~eedom(df).= (x) - 1 Data listed on Table B-1 (df) = I 1.655 I Area's Averl:lge Level (A1,1)"' (N) + (df) x [(Sd)/SQRT(x)] (A1,1) = BE pCi/gTh (NAT) GUIDEUNhALUE: 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°/o 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 i 1.812 2.228 28 1.701 2.048 11 1.796 2.201 29 1.699 2.045 12 I 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_li_st_ed_v_a~lu_e_s. __ ....,.... __ --r-----, (df) high value(Z) 400 is (B) 1.649 (df) low value(Y) 120 is (A) 1.658 Desired value(df) (X) 224 is calculated as follow: EXP[( (Ln(B~-Ln(A)) + (Z-Y)) (X-Y) + Ln(A)] The (df) value for ) 224 1.655 95% 95% 95% 0.0 0.0 0.0 0.0 I PERFORMEDrY, DATE: /-;J-6-~-{J 0.0 0.0 279.7 47.5 Sum(n) Sum(n-N)2 7-.2-~-7? REVIEWED I Y,_~-:...a*....aa.'--' *.__._~---- DATE: PAGE 1 OF 3 a:\\gadctcmp

CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDEN AFFECTED AREA "G" DRAINAGE CENTERLINE - SURFACE n = pCi/g Th (NAT)

  • n = pCi/g Th (NAT Number n

(n-N) (n-N)2 Number n (n*N) (n-N)" 51 1 -0.24 0.06 101 1 -0.24 0.06 52 1 -0.24 0.06 102. 1 -0.24 0.06 53 1 -0.24 0.06 103 1 -0.24 0.06 54 1 -0.24 0.06 104 1 -0.24 0.06 55 1 -0.24 0.06 105 1 -0.24 0.06 56 1 -0.24 0.06 106! 1 -0.24 0.06 57 1 -0.24 0.06 1071 1 -0.24 0.06 58 1 -0.24 0.06 1081 1 -0.24 0.06 59 1 -0.24 0.06

109, 1

-0.24 0.06 60 1 -0.24 0.06 110 1 -0.24 0.06 61 1 -0.24 0.06 111 1 -0.24 0.06 62 1 -0.24 0.06 112 1 -0.24 0.06 63 1 -0.24 0.06 113 1 -0.24 0.06 64 1 -0.24 0.06 114 1 -0.24 0.06 65 1 -0.24 0.06 115 1 -0.24 0.06 66 1 -0.24 0.06 116 1 -0.24 0.06 67 1 -0.24 0.06 117 1 -0.24 0.06 68 1 -0.24 0.06 118 1 -0.24 0.06 69 1 -0.24 0.06 119 1 -0.24 0.06 70 1 -0.24 0.06 120 1 -0.24 0.06 71 1 -0.24 0.06 121 1 -0.24 0.06 72 1 -0.24 0.06 122 1 -0.24 0.06 73 1 -0.24 0.06 123 1 -0.24 0.06 74 1 -0.24 0.06 124 1 -0.24 0.06 75 1 -0.24 0.06 125 1 -0.24 0.06 76 1 -0.24 0.06 126: 1 -0.24 0.06 77 1 -0.24 0.06 127: 1 -0.24 0.06 78 1 -0.24 0.06 128 1 -0.24 0.06 79 1 -0.24 0.06

129, 1

-0.24 0.06 80 1 -0.24 0.06 130 1 -0.24 0.06 81 1 . -0.24 0.06 131' 1 -0.24 0.06 82 1 -0.24 0.06 132 1 -0.24 0.06 83 1 -0.24 0.06 133 1 -0.24 0.06 84 1 -0.24 0.06 134 1 -0.24 0.06 85 1 -0.24 0.06

135, 1

-0.24 0.06 86 1 -0.24 0.06 136 1 -0.24 0.06 87 1 -0.24 0.06 137 1 -0.24 0.06 88 1 -0.24 0.06 138 1 -0.24 0.06 89 1 -0.24 0.06 139 1 -0.24 0.06 90 1 -0.24 0.06 140 1 -0.24 0.06 91 1 -0.24 0.06 141 1 -0.24 0.06 92 1 -0.24 0.06 142 1 -0.24 0.06 93 1 -0.24 0.06 143 1 -0.24 0.06 94 1 -0.24 0.06 144 1 -0.24 0.06 95 1 -0.24 0.06 145 1 -0.24 0.06 96 1 -0.24 0.06 146 1 -0.24 0.06 97 1 -0.24 0.06 147 1 -0.24 0.06 98 1 -0.24 0.06 148 1 -0.24 0.06 99 1 -0.24 0.06

149, 1

-0.24 0.06 100 1 -0.24 0.06 150i 1 -0.24 0.06 50.0 3.0 50.0 3.0 Sum(n) Sum(n-N)" Sum(n) Sum(n-N)2 PAGE 2 OF 3 a:lgadctcmp

CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDEN AFFECTED AREA "G" DRAINAGE CENTERLINE - SURFACE n = pCi/g Th (NAT)

  • n = pCi/g Th (NAT Number n

(n*N} (n-N)' Number n {n-N) {n-N)2 151 1 -0.24 0.06 201 2 0.76 0.57 152 1 -0.24 0.06 202 2 0.76 0.57 153 1 -0.24 0.06 2031 2 0.76 0.57 154 1 -0.24 0.06 204 2 0.76 0.57 155 1 -0.24 0.06 2051 2 0.76 0.57 156 1 -0.24 0.06 206( 2 0.76 0.57 157 1 -0.24 0.06 2071 2 0.76 0.57 158 1 -0.24 0.06 208i 2 0.76 0.57 159 1 -0.24 0.06 209! 2 0.76 0.57 160 1 -0.24 0.06 210 2 0.76 0.57 161 1 -0.24 0.06 211 2 0.76 0.57 162 1 -0.24 0.06 212; 2 0.76 0.57 163 1 -0.24 0.06 213' 2 0.76 0.57 164 1 -0.24 0.06 214 2 0.76 0.57 165 1 -0.24 0.06 215 2 0.76 0.57 166 1 -0.24 0.06 2161 2 0.76 0.57 167 1 -0.24 0.06 217 2 0.76 0.57 168 1.2 -0.04 0.00 218/ 2 0.76 0.57 169 1.9 0.66 0.43 2191 2 0.76 0.57 170 2 0.76 0.57

220, 2

0.76 0.57 171 2 0.76 0.57 221: 2 0.76 0.57 172 2 0.76 0.57 222! 2 0.76 0.57 173 2 0.76 0.57 223 2 0.76 0.57 174 2 0.76 0.57 224! 2 0.76 0.57 175 2 0.76 0.57 225i 3 1.76 3.09 176 2 0.76 0.57 226 0.00 0.00 177 2 0.76 0.57 227 0.00 0.00 178 2 0.76 0.57 228 0.00 0.00 179 2 0.76 0.57 229 0.00 0.00 180 2 0.76 0.57 230 0.00 0.00 181 2 ' 0.76 0.57 231 0.00 0.00 182 2 0.76 0.57 232 0.00 0.00 183 2 0.76 0.57 233; 0.00 0.00 184 2 0.76 0.57 234! 0.00 0.00 185 2 0.76 0.57 235 0.00 0.00 186 2 0.76 0.57 236! 0.00 0.00 187 2 0.76 0.57 237 0.00 0.00 188 2 0.76 0.57 238 0.00 0.00 189 2 0.76 0.57 239 0.00 0.00 190 2 0.76 0.57 240 0.00 0.00 191 2 0.76 0.57 241 0.00 0.00 192 2 0.76 0.57 242 0.00 0.00 193 2 0.76 0.57 243 0.00 0.00 194 2 0.76 0.57 244 0.00 0.00 195 2 0.76 0.57 245 0.00 0.00 196 2 0.76 0.57 246 0.00 0.00 197 2 0.76 0.57 247: 0.00 0.00 198 2 0.76 0.57 248' 0.00 0.00 199 2 0.76 0.57 249 0.00 0.00 200 2 0.76 0.57 250 0.00 0.00 82.1 19.2 51.0 16.8 Sum(n) Sum(n-N)2 Sum(n) Sum(n-N)2 PAGE 3 OF 3 a:\\gadctcmp

3" MICRO MICRO CIMARRON.PORATION Cl MARR CILITY Sub-Area "G" Affected Drainage Depth Soil Samples LN GRID DETECT R' R' 0- 6" 6" - 1' NUMBER C.P.M. SURF 1 METER Total-U Th (Nat) Total-U Th (Nat) 1 380 E - N 660 7014 11 12 5.6 1.1 9.1 1 2 380 E - N 735 4920 15 15 12.3 1.2 13.2 1.4 3 385 E - N 735 9184 9 9 '16.6 2.2 13.4 1.5 4 385 E - N 735 10180 10 10 12.6 0.8 5.6 0.8 5 385 E - N 740 10472 11 10 11.1 1.6 8.9 1.3 6 389 E - N 735 8726 10 9 17.3 1.4 9.5 1.6 7 390 E - N 680 7528 12 13 7.4 1.3 7.2 1.4 8 390 E - N 730 8538 9 9 13 1.8 9.2 1.5 9 390 E - N 734 9628 10 9 14.8 1.6 12.9 1.5 10 390 E - N 735 10630 12 11 15.7 2 6.8 1.3 11 390 E - N 740 10454 10 10 12.5 1.3 14.8 1.5 _ _12 __ 390 E - N 745 10562 11 11 8.3 1.2 10.7 1.5 13 391 E - N 735 9504 10 9 15.6 1.4 13.2 1.5 14 395 E - N 690 8530 13 14 14.4 1.2 7.7 1.2 15 395 E - N 735 8880 9 9 14.1 2.2 11 2.2 16 395 E - N 740 10910 11 11 10.7 1.4 9 1.2 17 400 E - N 700 8398 13 15 13.2 1.1 8.2 1.4 18 402 E - N 753 10434 10 12 21 2 15 1 19 405 E - N 710 8626 14 15 9.4 1.4 11.3 1.2 20 405 E - N 740 10244 11 10 8 2 8 1 INSTRUMENTS: RESULTS IN LUDLUM MICRO 'R' METER - 111299 µr/hr LUDLUM 2220, LEAD UNSHIELDED 3" X 1/2" Nal DETECTOR - 97264 CPM CIMMARON SOIL COUNTER X" X 4" X 16" Nal DETECTOR pCi/G BACKGROUND NOT SUBTRACTED REVIEWED BY: V.a.~ FILE: GASD PAGE 1 C:\\OFFICE\\QPW\\AREA-G\\GASD.WB2 QAQC-158 REV.1 pCi/g 1' - 2' 2' - 3' Total-U Th (Nat) 10 0.8 6.9 0.5 9.6 0.8 16.6 2.2 9.2 1 8.3 0.8 8.4 1.3 8.5 0.9 8.8 0.9 9.1 1.1 9.4 0.9 7 1.1 8.5 0.9 7.9 1.3 8.6 1 8.8 1.1 6.4 1.3 10 1 7.7 1.2 5 1 BACKGROUND 9 8000 4 Total U 1.5 Th (Nat) Total-U 9.3 8.2 9.7 10.9 7.1 9.6 11 9 6 DATE: Y ~ I 3 ~ l.:i.. Th {Nat) 0.8 1 0.9 0.7 0.6 1.4 1.1 1 1 MDA 2 N/A 10 1 3' -4' Total-U Th (Nat) 7.5 0.4 7.1 0.4 6.6 0.6 6.8 0.7 7.5 0.6 7.4 0.4 7.6 0.5 11 1 7 1

3" MICRO MICRO CIMARRON.ORATION Cl MARRO CILITY Sub-Area "G" Affected Drainage Depth Soil Samples LN GRID DETECT R' R' 0 - 6" 6" - 1' NUMBER C.P.M. SURF 1 METER Total-U Th (Nat) Total-U Th (Nat) 21 405 E - N 745 10438 11 11 14 1 9 1 22 405 E - N 750 10780 11 10 15 2 8 1 23 405 E - N 755 10842 11 11 . 11 2 6 1 24 408 E - N 748 10080 10 11 9 2 7 1 25 410 E - N 720 8252 14 14 11.7 1.2 9.4 1.1 26 410 E - N 740 10560 12 10 15 2 15 2 27 410 E - N 745 10506 11 11 21 2 8 2 28 410 E - N 750 10826 11 10 17 2 8 2 29 410 E - N 755 10496 11 11 12 2 7 1 30 412 E - N 743 10200 11 11 12 2 8 2 31 413 E - N 747 10200 11 11 7 2 17 2 - --4-1-4 E - N 756 10144 10 10 13 2 14 1 33 415 E - N 730 7996 14 14 11.2 1.3 8.7 1 34 415 E - N 740 11108 11 10 17 2 15 2 35 415 E - N 745 10542 10 10 11 2 20 2 36 415 E - N 750 10846 10 10 6 1 11 1 37 415 E - N 755 10806 11 10 10 1 9 1 38 420 E - N 750 11130 10 10 15 1 10 1 39 420 E - N 755 10914 11 10 17 2 11 1 40 425 E - N 670 8184 13 14 11.1 1.1 11.9

1.4 INSTRUMENTS

RESULTS IN LUDLUM MICRO 'R' METER - 111299 µr/hr LUDLUM 2220, LEAD UNSHIELDED 3" X 1/2" Nal DETECTOR - 97264 CPM CIMMARON SOIL COUNTER X" X 4" X 16" Nal DETECTOR pCi/G BACKGROUND NOT SUBTRACTED FILE: GASD PAGE2 REVIEWEDBY: 1.J.~u- ~ C:\\OFFICE\\QPW\\AREA-G\\GAS0.WB2 QAQC-158 REV.1 pCi/g 1' - 2' 2' - 3' Total-U Th (Nat) 7 1 7 1 6 1 13 1 9.1 0.7 3 1 6 1 9 1 7 1 9 2 7 1 11 1 4.6 0.7 11 1 7 1 7 1 5 1 8 1 16 1 6.2 1 BACKGROUND 9 8000 4 Total U 1.5 Th (Nat) Total-U 4 6 8 13 5 7 6 6 11 6 8 6 8 8 5 4 5 9 DATE: 'y-1 > -7z Th (Nat) 1 1 1 1 1 1 1 1 1 1

  • 1 *-**

1 1 1 1 1 1 1 MDA 2 N/A 10 1 3' - 4' Total-U Th (Nat) 4 1 10 1 5 1 8 1 8 1 12 1 7 1 8 1 11 1 6 1 5 1 11 1 5 1 7 1 5 1 8 1 10 1 10 1

3" MICRO MICRO CIMARRON.ORATION Cl MARRO CILITY Sub-Area "G" Affected Drainage Depth Soil Samples LN GRID DETECT R' R' 0 - 611 6" - 1' NUMBER C.P.M. SURF 1 METER Total-U Th (Nat) Total-U Th (Nat) 41 425 E - N 755 10282 10 9 19 2 10 1 42 430 E - N 680 8402 13 14 11 1.5 5.6 1.6 43 430 E - N 757 10914 10 11

  • 16 2

15 2 44 435 E - N 680 11264 11 11# 11.1 2 10.6 1.9 45 435 E - N 695 8768 13 15 12.3 1.2 8.7 1.4 46 440 E - N 675 10502 11 10 8.8 1.2 8 1.1 47 440 E - N 680 10780 11 11 13.7 1.1 14.3 1.6 48 440 E - N 685 11048 11 11 9.3 1.9 9.6 1.9 49 440 E - N 700 8480 13 14 8.6 1.3 8.1 1.4 50 440 E - N 760 10354 10 10 18 2 9 1 51 445 E - N 680 10672 11 11 7.9 1.6 7.7 1.2 52 - ___ 4.45 _ E - N 710 8634 15 13 9.3 1.4 7.2 1.5 53 450 E - N 720 8132 14 13 9.6 1.1 7.9 1.1 54 455 E - N 680 8608 14 13 9.2 1.4 7.4 1.4 55 455 E - N 730 8074 13 13 9.9 1.2 9.6 1.1 56 462 E - N 763 10514 12 11 14 2 10 2 57 465 E - N 660 7980 15 12 7.7 1.2 9.1 0.9 58 470 E - N 670 8094 12 14 10.7 0.7 7.9 1 59 475 E - N 680 8834 13 14 10.9 1.5 7 1.4 60 480 E - N 690 8796 14 14 7.6 1.5 9.6

1.4 INSTRUMENTS

RESULTS IN LUDLUM MICRO 'R' METER - 111299 µr/hr LUDLUM 2220, LEAD UNSHIELDED 3" X 1/2" Nal DETECTOR - 97264 CPM CIMMARON SOIL COUNTER X" X 4" X 16" Nal DETECTOR pCi/G BACKGROUND NOT SUBTRACTED FILE: GASD PAGE3 REVIEWED BY: J{). Ct.. -~ C:\\OFFICE\\QPWIAREA-G\\GASD.WB2 QAQC-158 REV.1 pCi/g 1' - 2' 2' - 3' Total-U Th (Nat) 6 1 6.9 1.3 9 1 11.4 1.7 8.2 1.4 8 1.3 10.1 1.3 7 1.8 8.7 1 10 1 8.8 1 5.6 1 9.5 1 6.2 1.5 5.2 0.9 9 1 6.8 0.7 7.8 1.2 8.4 1.4 6.4

1.5 BACKGROUND

9 8000 4 Total U 1.5 Th (Nat) Total-U 9 11 9.4 6 13 DATE: 7"'1).-7? Th (Nat) 1 1 0.8 1 1 MDA 2 NIA 10 1 3' - 4' Total-U Th (Nat) 10 1 13 1 7.7 0.9 6 1 12 1

3" MICRO MICRO CIMARRON.ORATION Cl MARRO CILITY Sub-Area "G" Affected Drainage Depth Soil Samples LN GRID DETECT R' R' 0 - 6" 6" - 1' NUMBER C.P.M. SURF 1 METER Total-U Th (Nat) Total-U Th (Nat) 61 484 E - N 760 10920 11 10 13 1 14 2 62 485 E - N 675 10678 10 11 7.8 1.8 6.9 1.5 63 485 E - N 700 8632 15 13

  • 7 1.5 5.8 1.8 64 485 E - N 700 10954 12 12*

9.9 1.7 9 1.7 65 485 E - N 750 10624 12 11 8.1 0.8 6.6 0.8 66 .490 E - N 670 10400 10 10 9.4 1.8 7.3 1.5 67 490 E - N 675 9530 9 9 12.1 1.1 7.5 1.5 68 490 E - N 680 10610 11 11 9.9 1.7 5.7 1.3 69 490 E - N 695 10634 12 11 4.7 2 7.6 1.6 70 490 E - N 705 11330 12 11 8.8 1.8 9 1.7 71 490 E - N 710 8532 14 13 11.4 1.3 5.2 1.4 .. J-2-~-A90-- E - N 745 10698 11 11 6.5 1.5 9.2 1.2 73 490 E - N 750 10374 10 10 16.6 1.8 13.2 1.3 74 490 E - N 755 10406 11 11 10.8 1.2 7.3 0.8 75 491 E - N 765 10976 11 10 11 2 16 2 76 495 E - N 675 10720 12 11 7.6 1.9 7.9 1.7 77 495 E - N 700 11146 11 11 7.8 1.9 7.7 1.5 78 495 E - N 720 8282 13 13 11.8 1.2 8.3 1.2 79 495 E - N 750 10694 12 10 10.2 1.9 9.8 1.3 80 497 E - N 765 11092 10 12 15 2 16 1 INSTRUMENTS: RESULTS IN LUDLUM MICRO 'R' METER - 111299 µr/hr LUDLUM 2220, LEAD UNSHIELDED 3" X 1/2" Nat DETECTOR - 97264 CPM CIMMARON SOIL COUNTER X" X 4" X 16" Nat DETECTOR pCi/G BACKGROUND NOT SUBTRACTED FILE: GASD PAGE4 REVIEWEDBY: ~-CL. ~ C:\\OFFICE\\QP\\MAREA-G\\GASD.WB2 QAQC-158 REV.1 pCi/g 1' - 2' 2' - 3' Total-U Th (Nat) 6 1 10.3 1.1 7.7 1.3 8.5 1.7 5.7 0.8 7.7 1.4 8.6 1.6 8.4 1.3 10.7 2.2 7.5 1.7 6.3 0.9 7.5 0.9 8 0.6 9.4 0.6 7 2 8.8 1.2 8.1 1.6 6.6 1 7 0.9 10 1 BACKGROUND 9 8000 4 Total U 1.5 Th (Nat) Total-U 6 8.5 8.3 8 7 DATE: 7-13 -9f Th (Nat) 1 1.3 0.6 1 1 MDA 2 N/A 10 1 3' - 4' Total-U Th (Nat) 13 1 9.4 1.2 6.6 0.4 8 1 8 1

CIMARRON.ORATION Cl MARRO CILITY Sub-Area "G" Affected Drainage Depth Soil Samples 3" MICRO MICRO LN GRID DETECT R' R' 0 - 6" 6" - 1' NUMBER C.P.M. SURF 1 METER Total-U Th (Nat) Total-U Th (Nat) 81 500 E - N 730 8266 14 13 9.6 1.4 9.8 1 82 515 E - N 695 8216 15 13 8.8 1.2 4.3 1.1 83 520 E - N 705 8140 14 12

  • 9.3 1.5 5.9 1.3 84 525 E - N 715 8816 14 13**

9.3 1.5 8.4 1.1 85 530 E - N 725 8284 14 14 8.3 1.2 4.3 1.7 86 535 E - N 735 8448 13 13 8.9 1.4 6 1.2 87 535 E - N 760 10958 11 10 7.9 1.7 4.8 1.3 88 540 E - N 755 11238 12 12 11 2.4 12.8 1.4 89 540 E - N 760 10264 9 9 13.2 1.9 11.9 1.7 90 540 E - N 765 11278 11 11 9 1.6 6.8 0.7 91 564 E - N 767 10994 10 10 11 2 7 2 . -92. 590 E - N 770 10234 10 **- - 10 l3.2 2 8 1.6 93 590 E - N 775 10960 11 11 8.6 1.7 8.2 1 94 600 E - N 782 10912 11 11 14 2 11 1 95 650 E - N 785 9206 9 9 9 1 7 2 96 700 E - N 798 9300 10 10 7 1 5 1 97 800 E - N 812 7258 7 8 7 1 5 1 98 800 E - N 960 STANDING WATER 5 1 8 1 99 812 E - N 920 3768* 9 11 8.7 0.8 5.4 0.9 100 815 E - N 980 STANDING WATER 9 1 8 2 INSTRUMENTS: RESULTS IN LUDLUM MICRO 'R' METER - 111299 µr/hr LUDLUM 2220, LEAD UNSHIELDED 3" X 1/2" Nal DETECTOR - 97264 CPM

  • LUDLUM 2220, LEAD SHIELDED 3" X 1/2" Nal DETECTOR - 48395*

CPM CIMMARON SOIL COUNTER X" X 4" X 16" Na! DETECTOR pCi/G BACKGROUND NOT SUBTRACTED REVIEWED BY: l)_o._. ~ FILE: GASD PAGE 5 C:\\OFFICE\\QPW\\AREA-G\\GASD.WB2 QAQC-158 REV.1 pCi/g 1' - 2' 2' - 3' Total-U Th (Nat) 6.8 1.1 6.1 1.2 8.2 0.8 6.9 1.5 7.7 1.2 6.9 1.5 8 0.7 5.8 0.8 8.8 1.4 7.2 0.9 16 1 8.3 0.8 6.2 1 6 1 8 1 7 1 6 1 11 1 4.6 0.9 7 1 BACKGROUND 9 8000 3430 4 Total U 1.5 Th (Nat) Total-U 7.5 7 6.9 13 9 9 8 8 7.1 6 DATE: 9-/ 3 -<fz. Th (Nat) 0.7 1 0.4 1 1 1 1 1 1 1 MDA 2 NIA N/A 10 1 3' -4' Total-U Th (Nat) 8.9 0.9 11 1 8.8 1.3 6 1 10 1 7 1 9 1 9 2 8.1 1.1 9 1

3" MICRO MICRO CIMARRON.ORATION Cl MARRO CILITY Sub-Area "G" Affected Drainage Depth Soil Samples LN GRID DETECT R' R' 0 - 6" 6" - 1' NUMBER C.P.M. SURF 1 METER Total-U Th (Nat) Total-U Th (Nat) 101 837 E - N 815 STANDING WATER 5 1 6 1 102 879 E - N 613 3110* 10 8 7.1 1 13.8 0.8 103 880 E - N 614 3260* 9 10

  • 8.8 1

6.6 1 104 881 E - N 655 5510* 10 10** 8.7 0.9 7.2 1 105 884 E - N 620 3630* 10 10 8 1.1 10.4 1.2 106 884 E - N 646 3800* 9 9 6 1 5.4 1.1 107 886 E - N 632 2570* 10 9 7.3 1 7.6 0.9 108 886 E - N 638 2740* 10 9 6.1 1 7.3 0.9 109 888 E - N 626 3170* 10 10 6.5 1.1 6.2 1.1 110 898 E - N 640 STANDING WATER 6 2 ROCK ROCK 111 898 E - N 718 STANDING WATER 5 1 3 1 H2.. 905 E - N 980 STANDING WATER 9 1 7 1 E - N E - N E - N E - N E - N E - N E - N E - N INSTRUMENTS: RESULTS IN LUDLUM MICRO 'R' METER - 111299 µr/hr LUDLUM 2220, LEAD UNSHIELDED 3" X 1/2" Nal DETECTOR - 97264 CPM

  • LUDLUM 2220, LEAD SHIELDED 3" X 1/2" Nal DETECTOR-48395*

CPM CIMMARON SOIL COUNTER X" X 4" X 16" Nal DETECTOR pCi/G BACKGROUND NOT SUBTRACTED FILE: GASD PAGE6 REVIEWED BY: -1.J _Cg... ~ C:\\OFFICE\\QP\\/\\l\\AREA-G\\GASD.WB2 QAQC-158 REV.1 pCi/g 1' - 2' 2' - 3' Total-U Th (Nat) 3 1 7.5 1 12.4 0.6 5.6 0.8 8.6 0.9 9 1 7.1 1 5.9 0.8 7.9 1 ROCK ROCK 6 1 11 1 BACKGROUND 9 8000 3430 4 Total U 1.5 Th (Nat) Total-U 7 8 8.1 6.1 9.4 6.7 6.9 6.5 8.9 ROCK ROCK 10 DATE: y -/ J - "f 1 Th (Nat) 1 0.8 1.2 0.6 0.9 0.9 0.8 1 1 ROCK ROCK 1 MDA 2 NIA N/A 10 1 3' - 4' Total-U Th (Nat) 8 1 8.5 0.8 8.7 1 8.8 0.8 5.1 0.7 9.3 0.9 6.7 1 6.9 1.2 ROCK ROCK ROCK ROCK 9 1

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PONO #2 1 ' I JOO 400 450 500 550 600 750 700 RESERVOIR fl PHASE II - SUB-AREA G DRAINAGE DEPTH DATA SOIL SAMPLE RESULTS ALIQUOT: 2'-3' REV. OESCRIF'llON BY: Cl<'D BY: N'f"D BY: ll4TE ~ - JE 0,.1£ sou 7 / 28/99 AS SHOWN DRAWING t-M)_ 99P0SGDDSS-3 REV. 0 1---+--------------~-~-~-~--~JOB NO. WR JL O 18 99 0 DRAWING ISSUED. JE ... \\ CIM\\SUBAREAG99\\DRA1NAGE\\99P0DGSS 100( 950 850 800 750

300 350 400 ~50 950 900 850 800 ... -- -**-**---~-.. -**--*-.. **-----*-* -:****- **-**..

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750 r ! f ~- ;~ 700 10.0. 650 600 I 550 I 300 350 400 450 9.4/ / / 500 550 600 /

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  • 1 I
1 URANIUM WASTE 1
I POND /12 I

i I I ' I I 500 550 600 650 700 SUB-AREA G,,. - ----:.--._ / ,/ / / / 750 700 750 800 850 900 .. __ :_/ -- r.9.0 ,.) - --./

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/ R[S£JM)IR fl REV. DESCRIPTION 950 1000 1050 100( 950 ~ -,..- 900 850 800 950 NOTES: 1000 1050 SAMPLES ARE IN PICO-CURIES PER GRAAI URANIUM (pCi/g U). Cll.lARRON GAMMA SPEC SOIL COUNTER SITE SOIL BACKGROUND OF ~ pCi/ g U, NOT SUBTRACTED. R+ HIT ROCK, NO SAMPLE TAKEN 5~--~ 5,0Q SCALE IN METERS~~ ~ CIMARRON CORPORATION CIMARRON FACILITY PHASE II - SUB-AREA G DRAINAGE DEPTH DATA SOIL SAMPLE RESULTS ALIQUOT: 3' -4' ORWN. BY JE 0/\\TE SCALE 7 /28/99 AS SHOWN 750 R£V. 0 t---+-----------------1----1---1---1---1~ NO. 0 DRAWING ISSUED. JE WR JL 10 18 99 DRAWING NO. 99P0SGDDSS-4

  • .. \\CIM\\SUBAREAG99\\DRA1N.A.GE\\99P0DGSS

PHASE II, SUB-AREA "G" - DEPTH - DRAINAGE AFFECTED AREA CIMARRON SOIL COUNTER TOTAL URANIUM SOIL SAMPLE RESULTS SITE BACKGROUND OF 4 pCi/g NOT SUBTRACTED JULY 20, 1999 I i URANIUM SAMPLE RESULTS FREQUENCY DISTRIBUTION I cn 350 - ' ~ 300 --~-------+---- a.. ~250 - --- ~

  • --~-

' CJ) 200 -------,-----

  • LL 0 150 -

ffi 100 ----+- en ~ 50 ---~ -*-...---r-z Q -;- I 5 10 15 25 pCi/g NUMBER OF SAMPLES 447 AVERAGE SAMPLE 9 MINIMUM SAMPLE 3 MAXIMUM SAMPLE 21 STANDARD DEVIATION 3

PHASE II, SUB-AREA "G" - DEPTH - DRAINAGE AFFECTED AREA CIMARRON SOIL COUNTER TOTAL THORIUM SOIL SAMPLE RESULTS SITE BACKGROUND:OF 1.5 pCi/g NOT SUBTRACTED JULY 20,1999 THORIUM SAMPLE RESULTS FREQUENCY DISTRIBUTION Cl) 250 - W

0:: 200 i

~ 1 ~ 150

u.

O 100 Ct'. w ~ 50

> z O -

1 2 pCi/g 3 NUMBER OF SAMPLES 447 AVERAGE SAMPLE 1.2 MINIMUM SAMPLE 0.4 MAXIMUM SAMPLE 2.4 STANDARD DEVIATION 0.4

PHASE II, SUB-AREA "G" - DEPTH - DRAINAGE AFFECTED AREA MICRO-R METER READINGS AT SURFACE LUDLUM MODEL 19, 5/N 111299 RESULTS IN µR/hr JULY 20,1999 MICRO 'R' READINGS@ SURFACE FREQUENCY DISTRIBUTION CJ) 35 - (9 z 30 --....----~ 0 <25 --~- w o:: 20 ------i---'- ~ 15 - ---+---~ ffi 10 ---+---+- ~ 5 *--+-

)

Z Q.J.. I . 7 9 i 10. 11 12 13 14 15 µR/hr NUMBER OF SAMPLES 106 AVERAGE SAMPLE 11 MINIMUM SAMPLE 7 MAXIMUM SAMPLE 15 STANDARD DEVIATION 2

PHASE II, SUB-AREA "G" - DEPTH - DRAINAGE AFFECTED AREA MICRO-R METER READINGS AT 1 METER ABOVE SURFACE LUDLUM MODEL 19, S/N 111299 RESULTS IN µR/hr JULY 20,1999 MICRO 'R' READINGS@ 1 METER FREQUENCY DISTRIBUTION w 30 - (9

  • -+-~

~ 25 ~ 7 *-* ~20 -~- 0:'.:'. u.. 15

  • - --t-0 0:'.:10 --

w OJ ~ z 5 --- ~ o :.

  • I

. 8 9 10 11 12 13 14 15 µR/hr NUMBER OF SAMPLES 106 AVERAGE SAMPLE 11 MINIMUM SAMPLE 8 MAXIMUM SAMPLE 15 STANDARD DEVIATION 2

Thursday, July 22, 1999 PHASE II, SUB-AREA "G" - DEPTH - DRAINAGE AFFECTED AREA GROSS GAMMA READINGS IN CPM LUDLUM MODEL 221, S/N 97264 BACKGROUND AVERAGES: 8000 JULY 20,1999 UNSHIELDED 3" Nal DETECTOR FREQUENCY DISTRIBUTION ~ 50 - z

+---t---------;---

0 40 - -<-----+----+-- <( ~ 30 ---~----+----+-

u. 020-----

a:: ~ 10 ---+----- ~

) 0 - -

1 2 7000 8000 9000 10000 11000 12000. CPM NUMBER OF SAMPLES 97 AVERAGE SAMPLE 9766 MINIMUM SAMPLE 4920 MAXIMUM SAMPLE 11330 STANDARD DEVIATION 1251 A:\\98GA3DGP.WB2

Thursday, July 22, 1999 PHASE II, SUB-AREA "G" - DEPTH - DRAINAGE AFFECTED AREA GROSS GAMMA READINGS IN CPM LUDLUM MODEL 221, 5/N 97264 BACKGROUND AVERAGES: 8000 JULY 20,1999 SHIELDED 3" Nal DETECTOR FREQUENCY DISTRIBUTION 6 -- --~ (./) <.9 -+----- z 5 _ 0 ~4 - n:: LL 3 - ---+----- 0 n:: 2 l w co ~ 1 I

> Zo i A:\\98GA3DGP.W82 3000 4000 5000 6000 CPM NUMBER OF SAMPLES 9

AVERAGE SAMPLE 3506 MINIMUM SAMPLE 2570 MAXIMUM SAMPLE 5510 STANDARD DEVIATION 815

CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - DEPTH - DRAINAGE n = pCi/g TOTAL U Number n (n-N) (n-N)' 1 3 -6.0 35.7 2 3 -6.0 35.7 3 3 -6.0 35.7 4 4 -5.0 24.8 5 4 -5.0 24.8 6 4 -5.0 24.8 7 4.3 -4.7 21.9 8 4.3 -4.7 21.9 9 4.6 -4.4 19.2 10 4.6 -4.4 19.2 11 4.7 -4.3 18.3 12 4.8 -4.2 17.5 13 5 -4.0 15.8 14 5 -4.0 15.8 15 5 -4.0 15.8 16 5 -4.0 15.8 17 5 -4.0 15.8 18 5 -4.0 15.8 19 5 -4.0 15.8 20 5 -4.0 15.8 21 5 -4.0 15.8 22 5 -4.0 15.8 23 5 -4.0 15.8 24 5 -4.0 15.8 25 5 -4.0 15.8 26 5 -4.0 15.8 27 5.1 -3.9 15.0 28 5.2 -3.8 14.3 29 5.2 -3.8 14.3 30 5.4 -3.6 12.8 31 5.4 -3.6 12.8 32 5.6 -3.4 11.4 33 5.6 -3.4 11.4 34 5.6 ~3.4 11.4 35 5.6 -3.4 11.4 36 5.6 -3.4 11.4 37 5.7 -3.3 10.7 38 5.7 -3.3 10.7 39 5.8 -3.2 10.1 40 5.8 -3.2 10.1 41 5.9 -3.1 9.5 42 5.9 -3.1 9.5 43 6 -3.0 8.9 44 6 -3.0 8.9 45 6 -3.0 8.9 46 6 -3.0 8.9 47 6 -3.0 8.9 48 6 -3.0 8.9 49 6 -3.0 8.9 50 6 -3.0 8.9 319.3 342.2 355.7 175.1 392.5 65.0 419.4 21.1 452.4 1.4 501.6 67.4 588.8 422.9 727.9 2169.2 4013 4042.9 Sum(n) Sum(n-N)2 No. of Samples (x): 447 COUNT TIME: 5 MINUTES Sample Mean (N) = Sum(n) + (x) Sample Mean (N) : I 8.98 I Standard Deviation (Sd) = SQRT [(n-N)' + (x -1)1 Standard Deviation: [IQ[] 2 Std Deviations: ~ Degree of Freedom(df).= {x) - 1 Data listed on Table 8-1 (df)= 11.649 I Area's Average Level (Aµ)= (N) + (df) x ((Sd)/SQRT(x)] (Aµ)= ~ pCi/gU TOTAL U GUIDELINE VALUE: pCi/gU TOTAL u Acceptable Level: pCi/gU TOTAL U TABLE 8-1 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 2.1 31 120 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. Infinite is(B) I 1.645 I 400 is (A) I 1.649 I (df) high value(Z) (df) low value(Y) Desired value(df) (X) 446 is calculated as follow: EXP[( (Ln(B)-Ln(A)) + (Z-Y)) (X-Y) + Ln(A)] The ( df) value for (X) J 446 I 1.649 j 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 PERFORMED~Y,,~ REVIEWED ~Y: 1J

  • c.e_, ~

DATE: 7-;i.._-b-!/7 DATE: 7-). b-,Yf PAGE 1 OF 5

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDEN AFFECTED AREA 'G' - DEPTH - DRAINAGE n = pCi/g TOTAL U n = pCi/g TOTAL Number n (n-N) (n-N)2 Number n (n-N) (n-N)2 51 6 -1.35 1.82 101 7 -0.35 0.12 52 6 -1.35 1.82 102 7 -0.35 0.12 53 6 -1.35 1.82 103 7 -0.35 0.12 54 6 -1.35 1.82 104 7 -0.35 0.12 55 6 -1.35 1.82 105 7 -0.35 0.12 56 6 -1.35 1.82 106 7 -0.35 0.12 57 6 -1.35 1.82 107 7 -0.35 0.12 58 6 -1.35 1.82 108 7 -0.35 0.12 59 6 -1.35 1.82 109 7 -0.35 0.12 60 6 -1.35 1.82 110 7 -0.35 0.12 61 6 -1.35 1.82 111 7 -0.35 0.12 62 6 -1.35 1.82 112 7 -0.35 0.12 63 6 -1.35 1.82 113 7 -0.35 0.12 64 6 -1.35 1.82 114 7 -0.35 0.12 65 6 -1.35 1.82 115 7 -0.35 0.12 66 6 -1.35 1.82 116 7 -0.35 0.12 67 6 -1.35 1.82 117 7 -0.35 0.12 68 6.1 -1.25 1.56 118 7 -0.35 0.12 69 6.1 -1.25 1.56 119 7 -0.35 0.12 70 6.1 -1.25 1.56 120 7 -0.35 0.12 71 6.2 -1.15 1.32 121 7 -0.35 0.12 72 6.2 -1.15 1.32 122 7 -0.35 0.12 73 6.2 -1.15 1.32 123 7 -0.35 0.12 74 6.2 -1.15 1.32 124 7 -0.35 0.12 7!; 6.3 -1.05 1.10 125 7 -0.35 0.12 76 6.4 -0.95 0.90 126 7 -0.35 0.12 77 6.4 -0.95 0.90 127 7 -0.35 0.12 78 6.5 -0.85 0.72 128 7 -0.35 0.12 79 6.5 -0.85 0.72 12~ 7 -0.35 0.12 80 6.5 -0.85 0.72 130 7 -0.35 0.12 81 6.6 -0.75 0.56 131 7.1 -0.25 0.06 82 6.6 -0.75 0.56 13~ 7.1 -0.25 0.06 83 6.6 -0.75 0.56 133 7.1 -0.25 0.06 84 6.6 -0.75 0.56 134 7.1 -0.25 0.06 85 6.6 -0.75 0.56 135 7.1 -0.25 0.06 86 6.7 -0.65 0.42 136 7.2 -0.15 0.02 87 6.7 -0.65 0.42 137 7.2 -0.15 0.02 88 6.8 -0.55 0.30 138 7.2 -0.15 0.02 89 6.8 -0.55 0.30 139 7.2 -0.15 0.02 90 6.8 -0.55 0.30 140 7.3 -0.05 0.00 91 6.8 -0.55 0.30 141 7.3 -0.05 0.00 92 6.8 -0.55 0.30 142 7.3 -0.05 0.00 93 6.9 -0.45 0.20 143 7.3 -0.05 0.00 94 6.9 -0.45 0.20 144 7.4 0.05 0.00 95 6.9 -0.45 0.20 145 7.4 0.05 0.00 96 6.9 -0.45 0.20 146 7.4 0.05 0.00 97 6.9 -0.45 0.20 147 7.5 0.15 0.02 98 6.9 -0.45 0.20 148 7.5 0.15 0.02 99 6.9 -0.45 0.20 149 7.5 0.15 0.02 100 6.9 -0.45 0.20 150 7.5 0.15 0.02 319.3 52.7 355.7 4.2 Sum(n) Sum(n-N)2 Sum(n) Sum(n-N)' PAGE 2 OF 5

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDEN AFFECTED AREA 'G'

  • DEPTH - DRAINAGE n = pCi/g TOTAL U
  • n = pCi/g TOTAL Number n

(n-N) (n-N)2 Number n (n-N) (n-N)' 151 7.5 0.15 0.02 201 8 0.65 0.42 152 7.5 0.15 0.02 202 8 0.65 0.42 153 7.5 0.15 0.02 203 8 0.65 0.42 154 7.6 0.25 0.06 204 8 0.65 0.42 155 7.6 0.25 0.06 20$ 8 0.65 0.42 156 7.6 0.25 0.06 20a 8 0.65 0.42 157 7.6 0.25 0.06 20l 8 0.65 0.42 158 7.6 0.25 0.06 208 8 0.65 0.42 159 7.7 0.35 0.12 209 8.1 0.75 0.56 160 7.7 0.35 0.12 210 8.1 0.75 0.56 161 7.7 0.35 0.12 211 8.1 0.75 0.56 162 7.7 0.35 0.12 212 8.1 0.75 0.56 163 7.7 0.35 0.12 213 8.1 0.75 0.56 164 7.7 0.35 0.12 214 8.2 0.85 0.72 165 7.7 0.35 0.12 215 8.2 0.85 0.72 166 7.7 0.35 0.12 216 8.2 0.85 0.72 167 7.7 0.35 0.12 217 8.2 0.85 0.72 168 7.8 0.45 0.20 218 8.2 0.85 0.72 169 7.8 0.45 0.20 219 8.3 0.95 0.90 170 7.8 0.45 0.20 220 8.3 0.95 0.90 171 7.9 0.55 0.30 221 8.3 0.95 0.90 172 7.9 0.55 0.30 222 8.3 0.95 0.90 173 7.9 0.55 0.30 223 8.3 0.95 0.90 174 7.9 0.55 0.30 224 8.3 0.95 0.90 175 7.9 0.55 0.30 225 8.4 1.05 1.10 176 7.9 0.55 0.30 226 8.4 1.05 1.10 177 7.9 0.55 0.30 227 8.4 1.05 1.10 178 8 0.65 0.42 228 8.4 1.05 1.10 179 8 0.65 0.42 229 8.5 1.15 1.32 180 8 0.65 0.42 230 8.5 1.15 1.32 181 8 , 0.65 0.42 231 8.5 1.15 1.32 182 8 0.65 0.42 232 8.5 1.15 1.32 183 8 0.65 0.42 233 8.5 1.15 1.32 184 8 0.65 0.42 234 8.6 1.25 1.56 185 8 0.65 0.42 235 8.6 1.25 1.56 186 8 0.65 0.42 236 8.6 1.25 1.56 187 8 0.65 0.42 237 8.6 1.25 1.56 188 8 0.65 0.42 238 8.6 1.25 1.56 189 8 0.65 0.42 239 8.7 1.35 1.82 190 8 0.65 0.42 240 8.7 1.35 1.82 191 8 0.65 0.42 241 8.7 1.35 1.82 192 8 0.65 0.42 242 8.7 1.35 1.82 193 8 0.65 0.42 243 8.7 1.35 1.82 194 8 0.65 0.42 244 8.7 1.35 1.82 195 8 0.65 0.42 245 8.8 1.45 2.10 196 8 0.65 0.42 246 8.8 1.45 2.10 197 8 0.65 0.42 247 8.8 1.45 2.10 198 8 0.65 0.42 248 8.8 1.45 2.10 199 8 0.65 0.42 249 8.8 1.45 2.10 200 8 0.65 0.42 250 8.8 1.45 2.10 392.5 14.0 419.4 57.7 Sum(n) Sum(n-N)' Sum(n) Sum(n*N)2 PAGE 3 OF 5

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDEN AFFECTED AREA 'G' - DEPTH - DRAINAGE n = pCi/g TOTAL U c*1 TOTAL n = p I 1 Number n (n-N) (n-N)2 Number n (n-N) (n-N)2 251 8.8 1.45 2.10 301 9.4 2.05 4.21 252 8.8 1.45 2.10 302 9.4 2.05 4.21 253 8.8 1.45 2.10 303 9.4 2.05 4.21 254 8.8 1.45 2.10 304 9.4 2.05 4.21 255 8.8 1.45 2.10 305 9.4 2.05 4.21 256 8.9 1.55 2.40 306 9.4 2.05 4.21 257 a.9 1.55 2.40 307 9.5 2.15 4.63 258 8.9 1.55 2.40 30B 9.5 2.15 4.63 259 8.9 1.55 2.40 30~ 9.6 2.25 5.07 260 9 1.65 2.73 310 9.6 2.25 5.07 261 9 1.65 2.73 311 9.6 2.25 5.07 262 9 1.65 2.73 312 9.6 2.25 5.07 263 9 1.65 2.73 313 9.6 2.25 5.07 264 9 1.65 2.73 314 9.6 2.25 5.07 265 9 1.65 2.73 315 9.6 2.25 5.07 266 9 1.65 2.73 316 9.7 2.35 5.53 267 9 1.65 2.73 317 9.8 2.45 6.01 268 9 1.65 2.73 318 9.8 2.45 6.01 269 9 1.65 2.73 319 9.9 2.55 6.51 270 9 1.65 2.73 320 9.9 2.55 6.51 271 9 1.65 2.73 321 9.9 2.55 6.51 272 9 1.65 2.73 322 10 2.65 7.03 273 9 1.65 2.73 323 10 2.65 7.03 274 9 1.65 2.73 324 10 2.65 7.03 275 9 1.65 2.73 325 10 2.65 7.03 276 9 1.65 2.73 326 10 2.65 7.03 277 9 1.65 2.73 327 10 2.65 7.03 278 9 1.65 2.73 328 10 2.65 7.03 279 9 1.65 2.73 329 10 2.65 7.03 280 9 1.65 2.73 330 10 2.65 7.03 281 9 1.65 2.73 331 10 2.65 7.03 282 9 1.65 2.73 332 10 2.65 7.03 283 9 1.65 2.73 333 10 2.65 7.03 284 9 1.65 2.73 334 10 2.65 7.03 285 9.1 1.75 3.07 335 10 2.65 7.03 286 9.1 1.75 3.07 336 10.1 2.75 7.57 287 9.1 1.75 3.07 337 10.2 2.85 8.13 288 9.1 1.75 3.07 338 10.3 2.95 8.71 289 9.2 1.85 3.43 339 10.4 3.05 9.31 290 9.2 1.85 3.43 340 10.6 3.25 10.57 291 9.2 1.85 3.43 341 10.7 3.35 11.23 292 9.2 1.85 3.43 342 10.7 3.35 11.23 293 9.3 1.95 3.81 343 10.7 3.35 11.23 294 9.3 1.95 3.81 344 10.7 3.35 11.23 295 9.3 1.95 3.81 345 10.8 3.45 11.91 296 9.3 1.95 3.81 346 10.9 3.55 12.61 297 9.3 1.95 3.81 347 10.9 3.55 12.61 298 9.3 1.95 3.81 348 11 3.65 13.33 299 9.4 2.05 4.21 349 11 3.65 13.33 300 9.4 2.05 4.21 350 11 3.65 13.33 452.4 145.5 501.6 371.7 Sum(n) Sum(n-N)2 Sum(n) Sum(n-N)2 PAGE 4 OF 5}}

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