Text

Cimarron Corporation 1999 Final Status Survey Report for Sub-Area I, Part 3 of 7
	ML20212L543
Person / Time
Site:	07000925
Issue date:	06/29/1999
From:	; Cimarron Corp
To:	; Office of Nuclear Material Safety and Safeguards
Shared Package
ML20212L572	List: ML20212L527; ML20212L541; ML20212L543; ML20212L552; ML20212L556; ML20212L561; ML20212L571;
References
	Download: ML20212L543 (64)
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REFER TO DATA TABLE fOR SURVEY RESULTS. 3 0 3 SCALE IN M E T E R S ~ CIMARRON CORPORATION CIMARRON FACILITY PHASE II - SUB-AREA I Ti02 BLDG. - ROOF SURVEY ALPHA & BETA-GAMMA SURVEY LOCATIONS ..,_ _________________.....,._....,._....,._.....,.DRVIW_ bRWN BV: a('I) BY, m irr: tv11E BY JE 0/\\IT 5-28-99 I SCALE: AS SHOWN REY. OESCRIP'OON 1--0 -+--DRA-Wi-NG-1-SS-UE_D_. __________ ,,__J..... E -t--WR-----JL--1-6/-,-2-1/:--1199 JOB NO. DRAWING HO. 99pos1wAs-6 1 o* ... SUBAREAI\\TI02-BLDG\\Tl02-R00f -160 -144.6

05/19/99 CIMARRON FACILITY Ti02 ROOF SURVEY ALPHA AND BETA/$AMMA SUB-AREA "I" AFFECTED PHASE II SIN RESULTSlN BACKGROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE I 114616 DPM/100cm2 268 cpm 542 DPM ALPHA - .3 cpm 12 Cl-01 DPM/100cm2 DPM/100cm 2 ALPHA AND BETA SMEAR TENNELEC LB-5100. BETA-2.0 cpm 18 DPM/100 cm 2 DPM/100cm2 REVIEWED BY: 1,J,a.. ~ DATE: !>- ;.y-?'i' READING LN TI02 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 1 ROOF 1 140 40 2 7 2 ROOF 2 30 190 0 0 3 ROOF 3 110 0 0 0 4 ROOF 4 150 160 2 0 5 ROOF 5 90 60 2 5 6 ROOF 6 110 20 2 0 7 ROOF 7 90 270 7 2 8 ROOF 8 100 0 4 9 9 ROOF 9 130 370 2 5 10 ROOF 10 170 230 12 4 11 ROOF 11 130 70 2 0 12 ROOF 12 180 440 2 7 13 ROOF 13 140 620 a 0 14 ROOF 14 190 910 2 9 15 ROOF 15 90 640 2 7 16 ROOF 16 140 320 4 4 17 ROOF 17 420 590 0 12 18 ROOF 18 1780 2950 12 9 19 ROOF 19 1080 1270 15 13 20 ROOF 20 910 1000 15 25 21 ROOF 21 370 800 0 0 22 ROOF 22 450 470 7 4 23 ROOF 23 1470 2180 15 1 24 ROOF 24 450 1190 0 14 25 ROOF 25 910 2520 12 11 26 ROOF 26 2460 3380 9 9 27 ROOF 27 900 2380 23 8 28 ROOF 28 700 2100 9 23 29 ROOF 29 490 2920 12 20 30 ROOF 30 310 2000 4 12 31 ROOF 31 1150 1990 4 19 32 ROOF 32 360 1520 9 23 33 ROOF 33 900 2170 23 17 34 ROOF 34 1280 2180 4 2 A:\\TI02RF.WB2 1

05/19/99 Cl~ARRON FACILITY SUB-AREA "I" Ti02 ROOF SURVEY ALPHA AND BETA/GAMMA AFFECTED PHASE II SIN pr=~~*~ TS IN I BACKGROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE 114616 DPM/100cm2 268 cpm 542 DPM ALPHA- .3cpm 12 Cl-01 DPM/100cm2 DPM/100cm2 ALPHA AND BETA SMEAR TENNELEC LB-5100

BETA*

2.0 cpm 18 DPMl100 cm2 DPM/100cm2 REVIEWED BY: '1-t.L a. ~_D _,,,. 1 _/ DATE: J--J..Y- ?r READING /I LN TI02 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 35 ROOF 35 1130 2650 12 4 36 ROOF 36 2260 3490 7 4 37 ROOF 37 1330 3080 2 0 38 ROOF 38 300 760 2 5 39 ROOF 39 40 390 2 0 40 ROOF 40 1420 1850 2 9 41 ROOF 41 870 1980 4 0 42 ROOF 42 960 2080 4 0 43 ROOF 43 1840 4640 4 16 44 ROOF 44 170 1390 0 10 45 ROOF 45 100 1300 0 0 46 ROOF 46 320 1440 2 2 47 ROOF 47 130 1310 2 9 48 ROOF 48 150 1200 0 0 49 ROOF 49 210 1110 2 5 50 ROOF 50 360 1290 0 5 51 ROOF 51 470 1060 4 4 52 ROOF 52 940 1160 4 0 53 ROOF 53 330 1300 0 12 54 ROOF 54 220 740 2 0 55 ROOF 55 1060 1710 4 4 56 ROOF 56 550 1420 4 0 57 ROOF 57 640 1190 2 7 58 ROOF 58 410 1220 4 14 59 ROOF 59 570 1320 2 0 60 ROOF 60 1030 3300 4 0 61 ROOF 61 1180 2360 0 5 62 ROOF 62 1570 4410 7 14 63 ROOF 63 1430 3480 7 26 64 ROOF 64 1040 3040 4 2 65 ROOF 65 2130 3700 4 0 66 ROOF 66 1360 2130 2 7 67 ROOF 67 1130 2580 7 0 68 ROOF 68 1220 2360 12 23 A:\\TI02RF. WB2 2

***** r 05/19/99 I

Cl~ARRON FACILITY I Ti02 ROOF SURVEY SUB-AREA "I" ALPHA AND BETA/~AMMA AFFECTED PHASE II S/N ~.!::...:I II TS IN BACKGROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE i 114616 DPM/100cm2 268 cpm 542 DPM I ALPHA - .3 cpm 12 i Cl-01 DPM/100cm2 OPM/100cm 2 ALPHA AND BETA SMEAR TENNELEC LB-5100 BETA-2.0 cpm 18 DPM/100 cm2 DPM/100cm2 REVIEWED BY: '1V °'*A.rt-~~~ ~ DATE: ~-,)...'-j-9 '1 READING I LN TIO2 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 69 ROOF 69 830 2840 2 17 70 ROOF 70 700 1640 12 13 71 ROOF 71 750 2010 12 13 72 ROOF 72 650 1760 0 12 73 ROOF 73 1070 1900 10 2 74 ROOF 74 1010 1960 10 2 75 ROOF 75 690 1800 7 9 76 ROOF 76 1630 2940 12 6 77 ROOF 77 500 1410 2 5 78 ROOF 78 500 1340 7 2 79 ROOF 79 530 1480 4 4 80 ROOF 80 770 1600 7 19 81 ROOF 81 1380 2810 12 16 82 ROOF 82 1310 4270 4 12 83 ROOF 83 320 2900 7 4 84 ROOF 84 1100 2870 10 2 85 ROOF 85 1350 4030 15 20 86 ROOF 86 1630 2460 7 4 87 ROOF 87 1500 2960 12 18 88 ROOF 88 1070 3290 23 15 89 ROOF 89 1500 2210 23 5 90 ROOF 90 1610 3180 12 16 91 ROOF 91 1110 1940 9 18 92 ROOF 92 1120 2140 12 6 93 ROOF 93 790 1390 2 2 94 ROOF 94 510 1270 9 11 95 ROOF 95 620 1580 4 19 96 ROOF 96 940 1540 4 0 97 ROOF 97 790 1900 4 16 98 ROOF 98 680 1720 0 0 99 ROOF 99 350 1880 10 0 100 ROOF 100 1450 2270 7 4 101 ROOF 101 1490 2840 7 7 102 ROOF 102 1260 4440 2 7 A:\\TI02RF.WB2 3

05/19/99 Ti02 ROOF SURVE ALPHA AND BETA/GAMMA SIN INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 BETA DIRECT LUDLUM 2224 43-89 PROBE I 114616 I Cl-01 ALPHA AND BETA SMEAR TENNELEC LB-5100

SUB-AREA 11' AFFECTED PHASE II RE-SUL TS IN BA~~-~~~.n.JND MUA DPM/100cm2 2

cpm 72DPM DPM/10Dcm2 268 cpm 542 DPM ALPHA- .3 cpm 12 DPM/100cm2 DPM/1O0cm 2 BETA-2.0 cpm 18 DPM/100 cm2 DPM/1O0cm* REVIEWED BY: -iv.a. ~o.,,.,, -r-DATE: s--i'l-rY READING LN TIO2 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 103 ROOF 103 1270 4120 4 12 104 ROOF 104 1660 2930 7 23 105 ROOF 105 1070 2810 7 4 106 ROOF 106 1280 2330 17 10 107 ROOF 107 1570 4200 7 4 108 ROOF 108 2040 3470 15 15 109 ROOF 109 1100 3480 4 12 110 ROOF 110 1930 3030 9 6 111 ROOF 111 410 1610 4 0 112 ROOF 112 820 2340 0 5 113 ROOF 113 830 2700 2 5 114 ROOF 114 1020 2570 2 2 115 ROOF 115 1570 3290 7 2 116 ROOF 116 1330 2590 0 5 117 ROOF 117 940 2080 9 6 118 ROOF 118 1320 3010 4 9 119 ROOF 119 2040 5380 4 16 120 ROOF 120 1440 3230 4 2 121 ROOF 121 1400 3020 20 5 I 122 ROOF 122 120 2450 15 6 123 ROOF 123 1010 2100 0 10 124 ROOF 124 1350 2560 15 0 125 ROOF 125 1420 2380 25 0 126 ROOF 126 1160 3160 7 11 127 ROOF 127 930 2540 2 5 128 ROOF 128 1370 2770 17 13 129 ROOF 129 1200 2950 0 19 130 ROOF 130 1490 3350 7 2 131 ROOF 131 1330 3080 9 16 132 ROOF 132 i 1820 3950 4 2 133 ROOF 133 1550 3620 23 15 134 ROOF 134 110 1410 2 0 135 ROOF 135 180 3010 0 0 136 ROOF 136 120 3170 7 2 A:\\TI02RF.WB2 4

05/19/99 CIMARRON FACILITY TiO2 ROOF SURVEY ALPHA AND BETA/GAMMA SUB-AREA "I" AFFECTED PHASE II SIN RESULTS IN BACKGROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE 114616 DPM/100cm2 268 cpm 542 DPM i ALPHA- .3 cpm 12 I Cl-01 DPM/100cm2 DPM/100cm2 ALPHA AND BETA SMEAR TENNELEC LB-5100 BETA-2.0 cpm 18 DPM/100 cm 2 DPM/100cm2 REVIEWED BY: "?,,,) - Ct.. * ~ DATE: 5--..i-y..- <J9 READINl3 LN TI02 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 137 ROOF 137 1440 2890 2 7 138 ROOF 138 1450 2290 7 9 139 ROOF 139 1420 2170 4 16 140 ROOF 140 490 1880 9 6 141 ROOF 141 1160 2190 4 7 142 ROOF 142 1540 2200 17 1 143 ROOF 143 690 2010 0 0 144 ROOF 144 980 1700 4 2 145 ROOF 145 510 1710 0 0 146 ROOF 146 i 520 1570 12 9 147 ROOF 147 440 2460 2 17 148 ROOF 148 510 2590 17 3 149 ROOF 149 280 2260 0 0 150 ROOF 150 910 2380 12 16 151 ROOF 151 260 1960 4 0 152 ROOF 152 560 1900 2 7 153 ROOF 153 510 2740 4 2 154 ROOF 154 1350 3450 4 0 155 ROOF 155 1120 1110 0 7 156 ROOF 156 960 1680 9 6 157 ROOF 157 630 1810 2 5 158 ROOF 158 960 1580 2 9 159 ROOF 159 670 1880 0 0 160 ROOF 160 730 1790 2 14 161 ROOF 161 490 1190 2 5 162 ROOF 162 590 1740 2 2 163 ROOF 163 I 500 1580 0 12 164 ROOF 164 460 1960 2 12 165 ROOF 165 840 2060 12 0 166 ROOF 166 870 2550 0 10 167 ROOF 167 230 2110 0 12 168 ROOF 168 290 1030 0 5 169 ROOF 169 1000 2020 2 9 170 ROOF 170 500 1880 7 2 A:\\TI02RF.WB2 5

05/19/99 CIMARRON FACILITY Ti02 ROOF SURVEY ALPHA AND BETA/GAMMA SUB-AREA "I" AFFECTED PHASE II S/N RESULTS IN BACKGROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE 114616 DPM/100cm2 268 cpm 542 DPM ALPHA AND BETA SMEAR TENNELEC LB-5100 I ALPHA - .3 cpm 12 Cl-01 DPM/100cm2 DPM/100cm 2 BETA-2.0 cpm 18 DPM/100 cm2 DPM/100cm2 REVIEWED BY: v ~a. ~-A~ DATE: .5--;_'i---9 9 READINq V LN TI02 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID i ALPHA BETA ALPHA BETA 171 ROOF 171 i 710 3220 7 6 172 ROOF 172 I 650 1980 4 4 173 ROOF 173 I 570 2160 10 18 174 ROOF 174 720 2340 4 2 175 ROOF 175 310 2140 0 7 176 ROOF 176 i 490 2210 12 6 177 ROOF 177 250 1050 2 4 178 ROOF 178 I i 840 2760 2 7 179 ROOF 179 500 2320 4 4 180 ROOF 180 I 990 3450 5 0 I 181 ROOF 181 i 570 3210 2 4 182 ROOF 182 780 3350 4 0 183 ROOF 183 790 3570 7 6 184 ROOF 184 670 3580 2 9 185 ROOF 185 720 2980 2 7 186 ROOF 186 390 2560 2 7 187 ROOF 187 550 2970 0 5 188 ROOF 188 i 710 3220 0 0 189 ROOF 189 310 2060 2 4 190 ROOF 190 360 2120 10 6 191 191 810 2380 0 0 ROOF 192 ROOF 192 620 2710 4 6 193 ROOF 193 320 2080 0 7 194 ROOF 194 190 2530 2 0 195 ROOF 195 700 3000 0 12 196 ROOF 196 1110 3250 2 9 197 ROOF 197 1420 3510 7 4 198 ROOF 198 630 3410 5 0 199 ROOF 199 1170 3970 4 4 200 ROOF 200 760 3580 4 2 201 ROOF 201 620 3470 4 9 202 ROOF 202 490 3530 2 7 203 ROOF 203 1000 3360 4 9 204 ROOF 204 920 3500 4 14 A:\\TI02RF. WB2 6

05/19/99 Cl,ARRON FACILITY I TiO2 ROOF SURVE SUB-AREA "I" ALPHA AND BETA/CpAMMA AFFECTED PHASE II SIN RESULTS IN BACKGROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE I 114616 DPM/100cm2 268 cprn 542 DPM I ALPHA - .3cpm 12 Cl-01 DPM/100cm2 OPM/100cm 1 ALPHA AND BETA SMEAR TENNELEC LB-5100 BETA-2.0 cprn 18 DPM/100 cm2 DPM/100cm 1 REVIEWED BY: -iJ.i-C{, A DATE: 5-:.,;_y -J, Kt:ADIN~ LN TIO2 BUILDING ROOF SURVEY LOCATIOt,J DIRECT SMEAR ID ALPHA BETA ALPHA BETA 205 ROOF 205 I 1440 5900 10 13 206 ROOF 206 970 4040 10 8 207 ROOF 207 I 180 3740 4 4 208 ROOF 208 780 3300 4 0 209 ROOF 209 610 2990 0 5 210 ROOF 210 I 670 3670 7 6 211 ROOF 211 810 4060 2 14 212 ROOF 212 940 4270 2 19 213 ROOF 213 990 3750 2 7 214 ROOF 214 650 3640 2 23 215 ROOF 215 120 3370 2 2 216 ROOF 216 300 3340 7 1 217 ROOF 217 200 3430 2 4 218 ROOF 218 I 610 3500 2 0 219 ROOF 219 240 3190 2 9 220 ROOF 220 420 3950 7 18 221 ROOF 221 410 3700 2 0 222 ROOF 222 1190 4080 12 10 223 ROOF 223 1190 3250 2 14 224 ROOF 224 1150 4010 12 13 225 ROOF 225 950 3670 10 6 226 ROOF 226 1190 4020 7 1 227 ROOF 227 980 3410 2 14 228 ROOF 228 1020 3720 4 9 229 ROOF 229 600 4550 2 2 230 ROOF 230 1010 3500 7 1 231 ROOF 231 100 3320 2 0 232 ROOF 232 210 3200 2 0 233 ROOF 233 150 3010 4 4 234 ROOF 234 850 3100 4 11 235 ROOF 235 780 3400 7 20 236 ROOF 236 370 3500 0 9 237 ROOF 237 200 3510 2 2 238 ROOF 238 320 3770 0 0 A:\\Tl02RF.WB2 7

05/19/99 CIMARRON FACILITY Ti02 ROOF SURVE ALPHA AND BETA/GAMMA SUB-AREA "I" AFFECTED PHASE II SIN RESULTS IN BA.C!<GROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE 114616 DPM/100cm2 268 cpm 542 DPM ALPHA- .3 cpm 12 Cl-01 DPM/100cm2 DPM/100cm2 ALPHA AND BETA SMEAR TENNELEC LB-5100 BETA* 2.0 cpm 18 DPM/100 cm2 DPM/100cm 2 REVIEWED BY: v~ °'. ~ DATE: s---;;..y-J> r READIN4 {I LN TIO2 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA i 239 ROOF 239 I 890 5030 10 4 240 ROOF 240 820 3970 7 9 241 ROOF 241 640 3540 0 0 242 ROOF 242 I 800 3060 0 0 I 243 ROOF 243 220 3410 0 0 244 ROOF 244 440 3410 0 0 245 ROOF 245 220 3230 0 0 246 ROOF 246 1090 3640 10 1 I 247 ROOF 247 I 850 3160 4 0 248 ROOF 248 230 3680 2 0 249 ROOF 249 120 3300 2 14 250 ROOF 250 190 3040 2 0 251 ROOF 251 60 3510 0 0 252 ROOF 252 130 3140 2 0 253 ROOF 253 80 2420 2 4 254 ROOF 254 I 250 4210 0 7 255 255 I 120 3680 2 2 ROOF I ! 256 ROOF 256 i 940 4710 4 14 257 ROOF 257 I 390 3300 0 0 258 ROOF 258 280 3440 2 7 259 ROOF 259 380 3990 4 16 260 ROOF 260 260 3290 2 14 261 ROOF 261 420 3050 2 4 262 ROOF 262 310 3240 10 11 263 ROOF 263 910 3230 4 14 264 ROOF 264 970 2910 4 4 265 ROOF 265 250 4550 2 2 266 ROOF 266 180 4900 5 0 267 ROOF 267 i 310 3280 2 2 268 ROOF 268 170 3410 2 0 269 ROOF 269 250 3550 7 9 270 ROOF 270 160 4920 0 0 271 ROOF 271 140 4380 2 4 272 ROOF 272 170 3760 2 4 A:\\TI02RF.WB2 8

05/19/99 CIMARRON FACILITY TiO2 ROOF SURVEY ALPHA AND BETA/GAMMA SUB-AREA "I" AFFECTED PHASE II S/N RESULTS IN BACKGROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE 114616 DPM/100cm2 268 cpm 542 DPM ALPHA - .3 cpm 12 Cl-01 DPM/100cm2 DPM/100cm2 ALPHA AND BETA SMEAR TENNELEC LB-5100 BETA-2.0 cpm 18 DPM/100 cm2 DPM/1O0cm2 REVIEWED BY: iv, 0...... ~rt...~ DATE: s--.J-'-f-7 9 H.EADINC / LN TIO2 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID i ALPHA BETA ALPHA BETA 273 ROOF 273 i 250 2210 7 1 274 ROOF 274 I 140 2620 0 7 275 ROOF 275 500 2430 7 0 276 ROOF 276 1000 2390 10 6 277 ROOF 277 I 210 1630 2 4 i 278 ROOF 278 210 2470 7 0 279 ROOF 279 I 150 1450 0 5 i 280 ROOF 280 1090 2080 2 9 281 ROOF 281 I 670 2790 0 5 i 282 ROOF 282 i 520 2570 0 9 i 283 ROOF 283 230 3320 0 7 284 ROOF 284 290 4090 0 2 285 ROOF 285 190 4280 2 0 286 ROOF 286 130 3180 0 0 287 ROOF 287 430 1960 7 4 288 ROOF 288 270 2530 2 14 289 ROOF 289 i 210 2570 4 16 290 ROOF 290 1600 4890 10 13 291 ROOF 291 1090 2510 7 11 292 ROOF 292 850 2450 0 7 293 ROOF 293 290 3080 0 2 294 ROOF 294 230 2130 0 0 295 ROOF 295 180 2420 2 7 296 ROOF 296 1000 2690 2 4 297 ROOF 297 410 2570 10 0 298 ROOF 298 130 2850 4 14 299 ROOF 299 i 270 3320 0 5 300 ROOF 300 100 2430 0 5 301 ROOF 301 230 2230 2 0 302 ROOF 302 240 3370 0 0 303 ROOF 303 230 4800 0 2 304 ROOF 304 140 1180 2 2 305 ROOF 305 200 3080 2 0 306 ROOF 306 720 2920 2 2 A:\\TI02RF.WB2 9

05/19/99 CIMARRON FACILITY Ti02 ROOF SURVEY ALPHA AND BETA/~AMMA SUB-AREA "I" AFFECTED PHASE II SIN RESULTS IN BACKGROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE 114616 DPM/100cm2 268 cpm 542 DPM I ALPHA- .3 cpm 12 I Cl-01 DPM/100cm2 DPM/100cm3 ALPHA AND BETA SMEAR TENNELEC LB-5100 BETA-2.0 cpm 18 DPM/100 cm 2 DPM/100cm 2 REVIEWED BY: ~) C(. ~J'""T.~ DATE: 5~J.-'i--;17 READING I LN TIO2 BUILDING ROOF SURVEY LOCATIDr~ DIRECT SMEAR ID ALPHA BETA ALPHA BETA 307 ROOF 307 1120 5160 7 16 308 ROOF 308 780 3810 10 1 309 ROOF 309 1010 3900 2 2 310 ROOF 310 1120 3740 10 0 311 ROOF 311 990 3680 2 0 312 ROOF 312 1030 3820 2 7 313 ROOF 313 1070 3150 2 7 314 ROOF 314 960 3680 4 6 315 ROOF 315 1140 3800 2 0 316 ROOF 316 690 3670 0 5 317 ROOF 317 950 3850 0 2 318 ROOF 318 1270 3720 4 0 319 ROOF 319 1610 4060 7 9 320 ROOF 320 1180 3890 4 21 321 ROOF 321 1160 3710 15 0 322 ROOF 322 1290 3690 2 9 323 ROOF 323 730 3980 7 0 324 ROOF 324 550 2090 12 8 325 ROOF 325 360 1220 4 4 326 ROOF 326 710 1820 4 2 327 ROOF 327 860 2190 2 21 328 ROOF 328 940 2150 10 6 329 ROOF 329 870 2390 4 6 330 ROOF 330 680 1970 7 4 331 ROOF 331 400 2090 7 21 332 ROOF 332 630 1380 0 0 333 ROOF 333 520 1380 2 2 334 ROOF 334 510 1330 0 0 335 ROOF 335 640 1150 10 8 336 ROOF 336 430 1280 2 9 337 ROOF 337 500 1610 10 4 338 ROOF 338 610 1640 15 20 339 ROOF 339 130 1370 17 12 340 ROOF 340 240 1510 36 13 A:\\TI02RF.WB2 10

I 05/19/99 Cl,ARRON FACILITY I I Ti02 ROOF SURVE SUB-AREA "I" ALPHA AND BETA/GAMMA AFFECTED PHASE II 5/N RESULIS IN ~-"'* CK GROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE 114616 DPM/100cm2 268 cpm 542 DPM ALPHA- .3 cpm 12 i Cl-01 DPM/100cm2 DPMl100cm* ALPHA AND BETA SMEAR TENNELEC LB-5100 : BETA-2.0 cpm 18 DPM/100 cm2 DPM/100cm2 REVIEWED BY: "'t-1 ). ~. /4--?;- J DATE: .5--.J-Y - r ? READIN( I LN TIO2 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID I ALPHA BETA ALPHA BETA i 341 ROOF 341 I 510 2530 2 2 342 ROOF 342 670 1720 2 0 343 ROOF 343 520 1280 2 0 344 ROOF 344 690 1860 2 0 345 ROOF 345 490 2090 2 2 346 ROOF 346 300 1540 0 0 347 ROOF 347 640 1780 2 0 348 ROOF 348 i 620 1010 2 0 i 349 ROOF 349 470 1590 7 6 I 350 ROOF 350 520 1560 2 4 351 ROOF 351 530 1140 0 0 352 ROOF 352 210 1610 2 0 353 ROOF 353 I 1130 2350 2 0 354 ROOF 354 I 160 1760 0 0 355 ROOF 355 I 150 420 0 5 356 ROOF 356 I 130 1750 4 2 i 357 ROOF 357 i 210 1790 2 0 358 ROOF 358 850 2630 2 9 359 ROOF 359 160 1330 0 5 360 ROOF 360 360 1950 0 5 361 ROOF 361 570 1600 2 2 362 ROOF 362 280 1830 2 2 363 ROOF 363 870 2310 0 2 364 ROOF 364 480 1940 2 2 365 ROOF 365 750 2160 4 0 366 ROOF 366 530 1520 0 7 367 ROOF 367 430 1680 2 0 368 ROOF 368 460 1880 2 0 369 ROOF 369 970 1840 0 2 370 ROOF 370 350 1490 0 0 371 ROOF 371 360 1380 0 2 372 ROOF 372 200 1850 2 7 373 ROOF 373 850 1870 7 13 374 ROOF 374 650 2280 12 0 A:\\TI02RF.WB2 11

05/19/99 Cl~ARRON FACILITY I Ti02 ROOF SURVE SUB-AREA "I" ALPHA AND BETA/QAMMA AFFECTED PHASE II SIN RESULTS IN BACKGROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE I 114616 DPM/100cm2 268 cpm 542 DPM ALPHA- .3cpm 12 I Cl-01 DPM/100cm2 DPM/100cm 2 ALPHA AND BETA SMEAR TENNELEC LB-5100 ' BETA-2.0 cpm 18 DPM/100 cm 2 DPM/100cm2 REVIEWED BY: 1,J~ Q. /4 ~ DATE: _{"""-.,).. Y - 9f READIN(: LN TI02 BUILDING ROOF SURVEY LOCATIOIN DIRECT SMEAR ID ALPHA BETA ALPHA BETA 375 ROOF 375 670 2030 0 19 376 ROOF 376 220 1470 12 6 377 ROOF 377 440 1490 2 7 378 ROOF 378 350 1240 2 0 379 ROOF 379 330 1270 0 0 380 ROOF 380 210 940 4 9 381 ROOF 381 230 1210 2 2 382 ROOF 382 i 450 940 2 2 383 ROOF 383 I 620 1980 4 6 384 ROOF 384 530 1530 4 0 385 ROOF 385 670 2100 4 6 386 ROOF 386 520 1700 2 7 387 ROOF 387 760 1680 2 9 388 ROOF 388 470 1910 0 2 389 ROOF 389 870 2370 2 0 390 ROOF 390 I 760 2160 4 2 391 ROOF 391 650 2530 12 6 392 ROOF 392 I 820 2310 12 6 393 ROOF 393 940 2410 4 14 i 394 ROOF 394 930 2390 7 6 395 ROOF 395 640 2350 12 3 396 ROOF 396 710 2210 0 2 397 ROOF 397 620 2030 12 6 398 ROOF 398 780 2300 2 2 399 ROOF 399 710 1990 2 2 400 ROOF 400 840 1620 4 4 401 ROOF 401 620 1800 2 0 402 ROOF 402 690 2190 7 2 403 ROOF 403 590 1860 2 11 404 ROOF 404 310 2320 2 4 405 ROOF 405 910 2540 7 4 406 ROOF 406 850 2690 7 2 407 ROOF 407 860 2360 2 7 408 ROOF 408 630 3350 0 12 A.\\TI02RF.WB2 12

05/19/99 CIMARRON FACILITY Ti02 ROOF SURVEY ALPHA AND BETAJ(;AMMA SUB-AREA 111 11 AFFECTED PHASE II S/N RESULTS IN BACKS~ClLlND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE I 114616 DPM/100cm2 268 cpm 542 DPM ALPHA - .3cpm 12 Cl-01 DPM/100cm2 DPM/100cm* ALPHA AND BETA SMEAR TENNELEC LB-5100 BETA-2.0 cpm 18 DPM/100 cm2 DPM/100cm* REVIEWED BY: -iU-q. /4~~H-~ DATE: s--:i.y-77 READING LN TI02 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 409 ROOF 409 810 2900 10 4 410 ROOF 410 970 2250 4 9 411 ROOF 411 690 2020 10 1 412 ROOF 412 720 1620 7 4 413 ROOF 413 150 2080 10 0 414 ROOF 414 700 2120 0 2 415 ROOF 415 780 2320 12 4 416 ROOF 416 1160 2660 7 2 I 417 ROOF 417 970 3250 7 2 418 ROOF 418 1060 2340 4 0 419 ROOF 419 I 800 3000 4 7 420 ROOF 420 1500 3450 7 6 421 ROOF 421 I 860 2680 7 0 I 422 ROOF 422 i 780 2760 0 5 423 ROOF 423 640 2360 2 2 424 ROOF 424 830 2510 0 7 425 ROOF 425 i 640 3200 10 16 426 ROOF 426 1130 3300 20 3 427 ROOF 427 1540 3260 7 6 428 ROOF 428 1020 2330 7 13 429 ROOF 429 900 2460 4 2 430 ROOF 430 650 2300 10 4 431 ROOF 431 1100 2750 2 4 432 ROOF 432 430 2050 12 20 433 ROOF 433 1370 2750 4 9 434 ROOF 434 1150 2860 12 6 435 435 I 1350 2930 4 0 ROOF 436 ROOF 436 1850 3850 2 7 437 ROOF 437 960 3080 0 0 438 ROOF 438 520 2880 4 2 439 ROOF 439 930 2920 4 4 440 ROOF 440 1160 2620 4 0 441 ROOF 441 940 2240 7 4 442 ROOF 442 930 3240 7 0 A:\\TI02RF.WB2 13

05/19/99 CIMARRON FACILITY Ti02 ROOF SURVEY ALPHA AND BETA/GAMMA SUB-AREA "I" AFFECTED PHASE II SIN P~~!..11_ TS IN BACKG~OUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE 114616 DPM/100cm2 268 cpm 542 DPM ALPHA - .3 cpm 12 Cl-01 DPM/100cm2 OPM/100cm 2 ALPHA AND BETA SMEAR TENNELEC LB-5100. BETA-2.0 cpm 18 i DPM/100 cm2 DPM/100cm2 REVIEWED BY: I --iJ1, q. l{'c.,., - .J ~ DATE: 5--J_ '-I,<; 7

READINC, (I

LN TIO2 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 443 ROOF 443 1460 3620 7 0 444 ROOF 444 I 1450 3600 4 9 445 ROOF 445 1250 2790 2 4 446 ROOF 446 1540 2740 7 9 447 ROOF 447 1240 3210 2 0 448 ROOF 448 660 2920 10 8 449 ROOF 449 1320 2790 10 13 450 ROOF 450 1130 2790 2 4 451 ROOF 451 470 1690 7 2 452 ROOF 452 460 2150 2 7 453 ROOF 453 320 1870 4 0 454 ROOF 454 230 1970 0 12 455 ROOF 455 340 1990 4 4 456 ROOF 456 20 900 4 0 457 ROOF 457 1160 2350 4 0 458 ROOF 458 660 2710 12 6 459 ROOF 459 I 490 2250 4 7 i 460 ROOF 460 870 3830 4 7 461 ROOF 461 910 2340 2 9 i 462 ROOF 462 970 2940 2 2 463 ROOF 463 1220 3180 2 0 464 ROOF 464 1090 2440 2 2 465 ROOF 465 1000 2700 2 0 466 ROOF 466 1430 2660 0 7 467 ROOF 467 470 1770 2 4 468 ROOF 468 550 2090 0 0 469 ROOF 469 370 2080 2 2 470 ROOF 470 360 1340 0 5 471 ROOF 471 240 1760 2 2 472 ROOF 472 510 2120 4 0 473 ROOF 473 110 2010 0 9 474 ROOF 474 200 2290 2 4 475 ROOF 475 350 2630 4 7 476 ROOF 476 260 2880 10 16 A:\\TI02RF.WB2 14

05/19/99 CIMARRON FACILITY I Ti02 ROOF SURVEY SUB-AREA "I" ALPHA AND BETA/CpAMMA AFFECTED PHASE II S/N RESULTS IN BA~ "".~:-:uUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE I 114616 DPM/100cm2 268 cpm 542 DPM I ALPHA- .3cpm 12 Cl-01 DPM/100cm2 DPM/100cm* ALPHA AND BETA SMEAR TENNELEC LB-5100 i BETA-2.0 cpm 18 I DPM/100 cm2 DPM/100cm* ~~ ~,1-.i REVIEWED BY: 1-cl)_ Q. DATE: 5--)- 't -Y 7 READINC I' LN TIO2 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 477 ROOF 477 730 3130 0 0 478 ROOF 478 1160 2430 4 0 479 ROOF 479 950 2910 0 9 480 ROOF 480 1130 3240 4 0 481 ROOF 481 i 650 3200 10 6 482 ROOF 482 i 570 2620 2 7 483 ROOF 483 ! 580 2330 4 0 484 ROOF 484 I 770 2630 2 2 i 485 ROOF 485 I 210 1990 2 2 I 486 ROOF 486 i 420 2420 2 0 487 ROOF 487 i 1130 2040 0 0 488 ROOF 488 260 2470 0 0 I 489 ROOF 489 i 180 2460 0 0 I 490 ROOF 490 220 2190 2 0 491 ROOF 491 150 2280 0 0 492 ROOF 492 250 2270 0 0 493 ROOF 493 450 2850 0 11 494 ROOF 494 850 3460 7 16 495 ROOF 495 960 2420 10 13 496 ROOF 496 1050 2640 12 6 497 ROOF 497 710 2620 2 2 498 ROOF 498 900 3150 12 11 499 ROOF 499 980 3380 0 0 500 ROOF 500 800 2530 4 4 501 ROOF 501 700 2540 0 0 502 ROOF 502 450 2780 0 0 503 ROOF 503 I 270 2470 0 2 504 ROOF 504 540 2630 4 2 505 ROOF 505 i 250 2830 0 2 506 ROOF 506 340 3360 10 6 507 ROOF 507 390 3140 0 2 508 ROOF 508 i 440 3380 0 5 i 509 ROOF 509 I 390 3600 4 4 I 510 ROOF 510 360 3520 2 4 A:\\TI02RF.WB2 15

i 05/19/99 Cl,ARRON FACILITY I URVE SUB-AREA "I" Ti02 ROOFS ALPHA AND B ETA/GAMMA AFFECTED PHASE II SIN ~::~ULTSIN BAC ROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PR OBE 114616 DPM/100cm2 2 cprn 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROB E I 114616 DPM/1 00crn2 268 cpm 542 0PM ALPHA AND BETA SMEAR TENNELEC L I ALPHA- .3cpm 12 Cl-01 DPM/100cm2 OPM/100cm2 B-5100 BETA-2.0 cpm 18 I DPM/100 em2 OPM/100cm 2 REVIEWED BY: ~ ' e,.__ ~~~ DATE: s--'- '1 --J 9 R EADINC I' LN TIO2 BUILDING ROOF SURVEY L OCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 511 ROOF 511 1280 2940 4 4 512 ROOF 512 1130 1970 2 9 513 ROOF 513 i 860 2540 4 0 514 ROOF 514 1310 2610 10 0 515 ROOF 515 690 2810 0 0 516 ROOF 516 1 1380 2950 15 8 517 ROOF 517 700 2310 2 4 518 ROOF 518 650 2780 7 2 519 ROOF 519 360 3460 4 0 520 ROOF 520 300 2320 0 5 521 ROOF 521 410 2600 4 4 522 ROOF 522 370 2740 4 2 523 ROOF 523 650 2990 4 2 524 ROOF 524 i 750 3440 7 0 I 525 ROOF 525 I 750 3650 2 9 526 ROOF 526 I 430 3350 7 13 527 ROOF 527 i 580 4000 2 2 528 ROOF 528 I 560 2950 0 7 i 529 ROOF 529 640 2600 0 2 530 ROOF 530 1020 2810 15 0 531 ROOF 531 990 2820 4 9 532 ROOF 532 830 2930 2 14 533 ROOF 533 640 2840 2 2 534 ROOF 534 790 2190 0 0 535 ROOF 535 800 3180 2 4 536 ROOF 536 600 2670 0 2 537 ROOF 537 i 520 2610 2 7 i 538 ROOF 538 250 2680 0 16 539 ROOF 539 210 2670 0 0 540 ROOF 540 190 2660 4 0 541 ROOF 541 390 2390 0 2 542 ROOF 542 310 2550 10 0 543 ROOF 543 I 660 2500 4 0 544 ROOF 544 690 3670 2 0 A:\\TI02RF.WB2 16

05/19/99 Cl~ARRON FACILITY Ti02 ROOF SURVEY SUB-AREA "I" ALPHA AND BETA/(pAMMA AFFECTED PHASE II S/N RESULTS IN BA'--"'-'--=~**DUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72DPM BETA DIRECT LUDLUM 2224 43-89 PROBE 114616 DPM/100cm2 268 cpm 542 DPM ALPHA- .3 cpm 12 Cl-01 DPM/100cm 2 DPM/100cm2 ALPHA AND BETA SMEAR TENNELEC LB-5100 BETA-2.0 cpm 18 DPM/100 cm2 DPM/100cm2 REVIEWED BY: "k.. Ct. ~~,.~ IF DATE: 5--2-y-7 7 READINC: I LN TIO2 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 545 ROOF 545 700 3970 7 4 546 ROOF 546 1050 3190 10 6 547 ROOF 547 560 2810 0 5 548 ROOF 548 I 750 3010 12 4 549 ROOF 549 630 2830 0 0 i 550 ROOF 550 720 3030 2 7 551 ROOF 551 I 730 3330 2 2 i 552 ROOF 552 1130 3640 7 11 553 ROOF 553 380 2620 0 2 554 ROOF 554 370 2330 0 0 555 ROOF 555 l 160 2550 2 0 556 ROOF 556 l 280 2560 2 7 557 ROOF 557 i 120 2410 4 0 558 ROOF 558 I 260 2480 0 0 I 559 ROOF 559 I 180 2270 0 7 560 ROOF 560 I 620 2970 0 9 561 ROOF 561 440 3080 0 0 562 ROOF 562 500 2140 2 0 563 ROOF 563 380 2080 0 0 564 ROOF 564 320 1790 0 9 565 ROOF 565 150 2680 0 0 566 ROOF 566 340 2010 2 9 567 ROOF 567 210 2030 0 0 568 ROOF 568 180 2240 0 2 569 ROOF 569 670 2310 4 0 570 ROOF 570 800 2340 4 9 571 ROOF 571 420 2560 2 4 i 572 ROOF 572 1180 3390 0 0 I 573 ROOF 573 420 2670 4 2 574 ROOF 574 370 2560 2 2 575 ROOF 575 400 2190 2 11 576 ROOF 576 440 2490 2 9 577 ROOF 577 590 2560 2 7 578 ROOF 578 900 3380 4 0 A:\\TI02RF.WB2 17

05/19/99 CIMARRON FACILITY Ti02 ROOF SURVEY SUB-AREA "I" ALPHA AND BETA/$AMMA AFFECTED PHASE II 5/N RESULTS IN BACKGROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE 114616 DPM/100cm2 268 cpm 542 DPM ALPHA - .3cpm 12 Cl-01 DPM/100cm2 DPM1100cm1 ALPHA AND BETA SMEAR TENNELEC LB-5100 BETA-2.0 cpm 18 DPM/100 cm2 DPM/100cm 2 REVIEWED BY: 1-i. ~- Q. ~~ DATE: S--::;. y-9 9 KEADINC* / LN TIO2 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 579 ROOF 579 760 3030 2 2 580 ROOF 580 160 2000 0 7 581 ROOF 581 340 2020 2 11 582 ROOF 582 550 2340 4 0 583 ROOF 583 580 2390 0 2 584 ROOF 584 I 830 2110 10 4 585 ROOF 585 530 2260 2 0 586 ROOF 586 i 820 2870 4 2 I 587 ROOF 587 i 600 2320 0 2 I 588 ROOF 588 I 550 2600 2 0 I 589 ROOF 589 I 750 2750 0 2 I 590 ROOF 590 I 190 2270 2 4 591 ROOF 591 i 500 2360 4 4 592 ROOF 592 890 2640 4 7 593 ROOF 593 570 2300 10 8 594 ROOF 594 880 2800 4 0 595 ROOF 595 480 2720 4 2 596 ROOF 596 860 2410 0 5 597 ROOF 597 1120 2490 7 9 598 ROOF 598 1010 2710 7 9 599 ROOF 599 760 2200 4 14 600 ROOF 600 i 950 2670 0 0 601 ROOF 601 980 2450 2 0 602 ROOF 602 560 2030 2 2 603 ROOF 603 740 2440 7 0 604 ROOF 604 860 2480 0 5 605 ROOF 605 1040 2460 0 7 606 ROOF 606 1190 2490 0 0 607 ROOF 607 i 1230 2770 0 0 608 ROOF 608 1280 2930 2 4 609 ROOF 609 1480 3220 0 0 610 ROOF 610 1060 2650 2 11 611 ROOF 611 830 2410 2 0 612 ROOF 612 700 2940 2 2 A:\\TI02RF.WB2 18

05/19/99 CIMARRON FACILITY TiO2 ROOF SURVEY ALPHA AND BETA/GAMMA SUB-AREA "I" AFFECTED PHASE II S/N RESULTS IN BACKGROUND MDA INSTRUMENTS: ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 2 cpm 72 DPM BETA DIRECT LUDLUM 2224 43-89 PROBE i 114616 DPM/100cm2 268 cpm 542 DPM i ALPHA- .3 cpm 12 Cl-01 DPM/100cm2 DPM/100cm2 ALPHA AND BETA SMEAR TENNELEC LB-5100 BETA-2.0 cpm 18 DPM/100 cm2 DPM/100cm2 REVIEWED BY: ~ u,,Q. ~ DATE: 5-, J-y -7 7 I-{ ,DIN(., V LN TlO2 BUILDING ROOF SURVEY LOCATION DIRECT SMEAR ID ALPHA BETA ALPHA BETA 613 ROOF 613 580 2080 4 7 614 ROOF 614 1050 3100 2 4 615 ROOF 615 1040 2670 4 0 616 ROOF 616 740 2600 7 4 617 ROOF 617 1190 2910 0 2 618 ROOF 618 940 2330 2 11 619 ROOF 619 I 810 2340 0 0 I 620 ROOF 620 1070 2810 4 2 621 ROOF 621 I 1020 2510 2 4 622 ROOF 622 I 1050 2940 2 4 623 ROOF 623 580 2600 2 4 624 ROOF 624 1120 3410 4 7 625 ROOF 625 890 2650 0 5 626 ROOF 626 1140 3280 4 2 627 ROOF 627 l 540 2590 0 7 628 ROOF 628 I 740 2660 7 4 629 ROOF 629 390 2350 7 4 630 ROOF 630 i 840 1610 10 4 631 ROOF 631 I 1190 1780 7 4 i 632 ROOF 632 700 1530 4 4 633 ROOF 633 1070 2100 4 0 634 ROOF 634 860 1360 10 6 635 ROOF 635 890 1600 2 0 636 ROOF 636 890 1880 10 8 637 ROOF 637 820 1880 10 6 638 ROOF 638 1350 2920 7 9 639 ROOF 639 1800 3120 12 4 640 ROOF 640 840 2150 7 13 641 ROOF 641 980 1790 4 11 642 ROOF 642 1270 2020 4 7 643 ROOF 643 1310 2260 7 0 644 ROOF 644 920 1710 12 8 645 ROOF 645 960 2030 0 5 646 ROOF 646 460 2220 7 16 A:\\ TI02RF.WB2 19

CIMARRON CORPORATION SUB - AREA II I ll AFFECTED AREA TIO-2 ROOF 160 72 N E 158 N 72 E HOT SPOT AVERAGING ONE METER X ONE METER GRU) ( l 0,000 cm 2 ) EDGE OF ROOF 2580 5900 3~70 i i 2830 i I I I I 4040 I 100 cm i THE SIZE OF HOT SPOT AR_f:A 1 i 5900 dpm / 100 cm 2 MAX BETA READINQi I 160 74 158 74 % OF THE GRIDDED AREA REPRESENTED BY THE HOTSPOT: 1.0% Xw = A VG [ 1 - NI I 0000 ] + E [ N / l 0000] A VG = AVERAGE READING OF THE NON - El.EV ATED AREAS E = l\\1AXIMUM READING FROM THE ELEV+t\\. TED AREAS N = THE SIZE OF THE ELEVATED AREA N E dpm I 100 cm 2 2580 3470 2830 4040 N TOTAL: 12920 E AVERAGE: 3230 100 10000 Instrumentation: Ludlum 2224 SIN 114616 #Cl-51 Cal Date: 5-29-98 Cal Due: 9-98 Background/Beta: 146 CP(0.5)Min Surve Date: 7-16-98 Xw = 3257 dpm / 100 cm 2 Date: 5-3-99

CIMARRON CORPORATION SUB - AREA " I II AFFECTED AREA TIO - 2 ROOF 160 74 N E 158 N 74 E 100 cm 2 HOT SPOT A VERAGfNG I ONE METER X ONE METER GRJ lD ( 10,000 cm 2 ) EDGE OF ROOF 2040 5030 31230 3560 3970 THE SIZE OF HOT SPOT A~A 5030 dpm / I 00 cm 2 MAX BETA READINq 160 76 158 76 % OF THE GRIDDED AREA REPRESENTED BY THE HOTSPOT : 1.0% Xw = AVG [ 1 - N /10000] + E [ N /10000] A VG = AVERAGE READING OF THE NON - ELEVATED AREAS E = MAXIMUM READING FROM THE ELEVATED AREAS N = THE SIZE OF THE ELEV A TED AREA dpm / 100 cm 2 N 2040 E 3230 3560 3970 N TOTAL : 12800 E AVERAGE : 3200 100 10000 Instrumentation: Ludlum 2224 SIN 114616 #CI-51 Cal Date: 5-29-98 Cal Due: 9-98 Background/Beta: 146 CP(0.5)Min Survey Date: 7-16-98 Xw = 3218 dpm / 100 cm 2 Date: 5-3-99

CIMARRON CORPORATION SUB - AREA 11 I 11 AFFECTED AREA TIO-2 ROOF 160 78 N E 158 N 78 E 100 cm 2 HOT SPOT AVERAGING i i ONE METER X ONE METERGRiD ( 10,000 cm 2 ) EDGE OF ROOF 3770 5160 2520 2690 3810 TIIE SIZE OF HOT SPOT JA I 5160 dpm / 100 cm 2 MAX BETA READINb 160 80 158 80 % OF THE GRIDDED AREA REPRESENTED BY:THE HOTSPOT: 1.0% X w = AVG [ 1 - N I 10000 ] + E [ N / 10000 ] A VG = AVERAGE READING OF THE NON - ELEVATED AREAS E = MAXIMUM READING FROM THE ELEViA.TED AREAS N = THE SIZE OF THE ELEVATED AREA N E dpm I 100 cm 1 3770 2690 2520 3810 N TOTAL : 12790 3198 E AVERAGE: 100 10000 Instrumentation: Ludlum 2224 SIN 114616 #Cl-51 Cal Date: 5-29-98 Cal Due: 9-98 Background/Beta: 146 CP(0.5)Min Surve Date: 7-20-98 Xw 3 21 7 dpm / 100 cm 2 Date: 5-3-99

CIMARRON CORPORATION SUB - AREA,, I " AFFECTED AREA 146 66 N E 144.6 N 66 E TI0-2 ROOF HOT SPOT AVERAGING ONE METER X ONE METER GR D (10,000 cm 2 ) i 3010 i I 3550 2250 2950 5380 9460 2 900 EDGE OF ROOF [ 2_00 __ cm 2 THE SIZE OF HOT SPOT AREA 9460 dpm/ 100 cm 2 MAX BETA READINq} 146 68 144.6 68 % OF IBE GRlDDED AREA REPRESENTED BY IBE HOTSPOT : 2.0% X w = AVG [ 1 - N / 10000 ] + E [ N / 10000 ] AVG = AVERAGE READING OF THE NON - ELEVATED AREAS E = MAXIMUM READING FROM THE ELE\\ljATED AREAS N = THE SIZE OF THE ELEVATED AREA N E dpm 1100 cm 2 3010 3550 2250 2900 2950 N TOTAL: 14660 E AVERAGE : 2932 200 10000 Instrumentation: Ludlum 2224 SIN 114616 #Cl-51 Cal Date: 5-29-98 Cal Due: 9-98 Background/Beta: 146 CP(0.5)Min Survey Date: 7-16-98 Xw = 3063 dpm / 100 cm 1 Date: 5-3-99

06/17/99 CIMARRON CORPORATION - CIMARRON FACILITY ALPHA DIRECT TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95°/4 CONFIDENCE AREA "I" TI02 ROOF SURVEY (AFFECTED) n = OPM /100cm* Number n tn-N) ln-N)' No. ~f Samples (x) : 646 1 140.0 -575.2 330909.9 2 30.0 -685.2 469564.4 COUNT TIME: 0.5 MINUTES 3 110.0 -605.2 366324.8 4 150.0 -565.2 319504.9 5 90.0 -625.2 390934.7 Sample Mean IN),. Surn(n) +_(x~) ---~ SafTIJlle Mean (N): I 715.25 6 110.0 -605.2 366324.8 7 90.0 -625.2 390934.7 8 100.0 -615.2 378529.7 9 130.0 -585.2 342514.8 10 170.0 -545.2 297295.0 Sta ard Deviation (Sd) = SQRT [(n*N)' + (x

1)]

11 130.0 -585.2 342514.8 12 180.0 -535.2 286490.1 13 140.0 -575.2 330909.9 421.77 14 190.0 -525.2 275885.1 843.55 15 90.0 -625.2 390934.7 16 140.0 -575.2 330909.9 of Fr&edom(dfl.'" Ix)

1 (df)"

I Data listed on Table 8*1 1.645 1 17 420.0 -295.2 87171.2 I 18 1780.0 1064.8 1133697.5 19 1080.0 364.8 133044.3 Are~s Average Level (Aµ)"' IN) + (df) x [(Sd}/SQRT(x)] 20 910.0 194.8 37928.S I (Ap)= 742.55 DPM/100cm:t 21 370.0 -345.2 119196.0 22 450.0 -265.2 70356.3 4ulOELINE VALUE: Acc~ptable Level: 5000 OPM/1 00cm2 5000.0 DPM/100cm'" 23 1470.0 754.8 569651.1 24 450.0 -265.2 70356.3 25 910.0 194.8 37928.5 TABLE B-1 26 2460.0 1744.8 3044160.7 Fectors for Comparision of Survey Data with Guidelines 27 900.0 184.8 34133.4 df} 95*;. 97.5'/, (df) 95o/, 97.5'!. 28 700.0 -15.2 232.5 1 6.314 12.706 19 1.729 2.093 29 490.0 -225.2 50736.5 2 2.92 4.303 20 1.725 2.086 30 310.0 -405.2 164225.7 3 2.353 3.182 21 1.721 2.08 31 1150.0 434.8 189009.6 4 2.132 2.776 22 1.717 2.074 32 360.0 -355.2 126200.9 5 2.015 2.571 23 1.714 2.069 33 900.0 184.8 34133.4 6 1.943 2.447 24 1.711 2.064 34 1280.0 564.8 318945.2 ,7 1.895 2.365 25 1.708 2.06 35 1130.0 414.8 172019.5 i8 1.86 2.306 26 1.706 2.056 36 2260.0 1544.B 2386259.7 !9 1.833 2.262 27 1.703 2.052 37 1330.0 614.8 377920.4 0 1.812 2.228 28 1.701 2.048 38 300.0 -415.2 172430.6 1 1.796 2.201 29 1.699 2.045 39 40.0 -675.2 455959.4 2 1.782 2.179 30 1.697 2.042 40 1420.0 704.8 496675.8 3 1.771 2.16 40 1.684 2.021 41 870.0 154.8 23948.3 4 1.761 2.145 60 1.671 2 42 960.0 244.8 59903.7 5 1.753 2.131 120 1.658 1.98 43 1840.0 1124.8 1265067.8 6 1.746 2.12 400 1.649 1.966 44 170.0 -545.2 297295.0 7 1.74 2.11 Infinite 1.645 1.96 45 100.0 -615.2 378529.7 ~8 1.734 2.101 46 320.0 -395.2 156220.7 47 130.0 -585.2 342514.8 I 48 150.0 -565.2 319504.9 49 210.0

505.2 255275.2 50 360.0

-355.2 126200.9 For ~alues of Oegrffs of Freecom not list&d; lnta1>Dlata between Iha liste~d _va_lu_e-'-s. __ -.------,.-----,.---~ (df) ~igh value(Z) INFINITE Is B 1.645 953/4 48040.0 12080165.1 (df) iow value(Y) 400 ls A 1.649 95o/, 55290.0 20273173.8 Desi~ad value(df) (XI 645 is calculated as follow: 33130.0 4100350.9 32140.0 6770441.3 19770.0 10875968.9 34870.0 5730089.0 27360.0 4708199.2 47500.0 8563232.6 EXP[X (Ln(B)-Ln(A) l + (Z*YJ J,...(_X*_Y)~+_L_n~{A~}-] -.------,,-----, The (df) value for (X) I 645 I 1.645 953/4 PERFORMED BY: h<<~ / DATE: 31120.0 6713146.6 31230.0 4447692.1 27620.0 5277280.3 43990.0 6083654.4 REVl~WED BY: '1,,J * (J. * ~ DATE: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 o.o 0.0 0.0 0.0 0.0 total 462050 114740710.4 Sum(n) Sumln-Nl1 PAGE 1 OF7 C:IOFFICE\\QPW\\FSSRS\\Tf2RF _CA.W82

04/26/99 CIMARRON CORPORATION - CIMARRON FACILITY ALPHA DIRECT TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AREA "I" TIO2 ROOF SURVEY (AFFECTED) n = DPM /100cm2 Number n (n-N) (n-N) 2 51 470.0 -245.25 60146.42 52 940.0 224.75 50513.61 Number n (n-Nl (n-N)2 101 1490.0 774.75 600241.16 102 1260.0 544.75 296755.09 53 330.0 -385.25 148415.77. 103 1270.0 554.75 307750.14 54 220.0 -495.25 245270.26 i 104 1660.0 944.75 892556.95 55 1060.0 344.75 118854.16 105 1070.0 354.75 125849.21 56 550.0

165.25 27306.80 106 1280.0 564.75 318945.19 57 640.0

-75.25 5662.21 107 1570.0 854.75 730601.53 58 410.0 -305.25 93176.14 i 108 2040.0 1324.75 1754968.71 59 570.0 -145.25 21096.89 ' 109 1100.0 384.75 148034.35 60 1030.0 314.75 99069.02 I 110 1930.0 1214.75 1475623.20 61 1180.0 464.75 215994.72 ! 111 410.0 -305.25 93176.14 62 1570.0 854.75 730601,53 I 112 820.0 104.75 10973.05 63 1430.0 714.75 510870.88 113 830.0 114.75 13168.10 64 1040.0 324.75 105464.07 114 1020.0 304.75 92873.98 65 2130.0 1414.75 2001524.13 115 1570.0 854.75 730601.53 66 1360.0 644.75 415705.56 116 1330.0 614.75 377920.42 67 1130.0 414.75 172019.49 117 940.0 224.75 50513.61 68 1220.0 504.75 254774.91 118 1320.0 604.75 365725.37 69 830.0 114.75 13168.10 i 119 2040.0 1324.75 1754968.71 70 700.0 -15.25 232.49 i 120 1440.0 724.75 525265.93 71 750.0 34.75 1207.72 121 1400.0 684.75 468885.74 72 650.0 -65.25 4257.26 122 120.0

595.25 354319.80 73 1070.0 354.75 125849.21 i 123 1010.0 294.75 86878.93 74 1010.0 294.75 86878.93 124 1350.0 634.75 402910.51 75 690.0

-25.25 637.45 76 1630.0 914.75 836771.81 125 1420.0 704.75 496675.84 126 1160.0 444.75 197804.63 77 500.0 -215.25 46331.56 ! 127 930.0 214.75 46118.56 78 500.0 -215.25 46331.56 I 128 1370.0 654.75 428700.60 79 530.0 -185.25 34316.70 : 129 1200.0 484.75 234984.81 80 770.0 54.75 2997.82 I 130 1490.0 774.75 600241.16 81 1380.0 664.75 441895.65 i 131 1330.0 614.75 377920.42 82 1310.0 594.75 353730.32 132 1820.0 1104.75 1220477.69 83 320.0 -395.25 156220.73 133 1550.0 834.75 696811.44 84 1100.0 384.75 148034.35 134 110.0 -a05.25 366324.75 85 1350.0 634.75 402910.51 135 180.0 -535.25 286490.08 86 1630.0 914.75 836771.81 136 120.0 -595.25 354319.80 87 1500.0 784.75 615836.21 i 137 1440.0 724.75 525265.93 88 1070.0 354.75 125849.21 ; 138 1450.0 734.75 539860.97 89 1500.0 784.75 615836.21 : 139 1420.0 704.75 496675.84 90 1610.0 894.75 800581.72 ; 140 490.0 -225.25 50736.52 91 1110.0 394.75 155829.40 i 141 1160.0 444.75 197804.63 92 1120.0 404.75 163824.44. 142 1540.0 824.75 680216.39 93 790.0 74.75 5587.91 143 690.0 -25.25 637.45 94 510.0 .. 205.25 42126.61 144 980.0 264.75 70093.79 95 620.0 -95.25 9072.12 145 510.0 -205.25 42126.61 96 940.0 224.75 50513.61 146 520.0 -195.25 38121.66 97 790.0 74.75 5587.91 147 440.0 -275.25 75761.28 98 680.0 -35.25 1242.40 : 148 510.0 -205.25 42126.61 99 350.0 -365.25 133405.87 149 280.0 -435.25 189440.54 100 1450.0 734.75 539860.97 150 910.0 194.75 37928.47 48040.0 12080165.1 55290.0 20273173.8 Sum(n) Sum(n*N)2 Sum(n) Sum(n*N>2 PAGE 2 OF7 C:\\OFFICE\\QPW\\FSSRS\\Tl2RF _ CA.WB2

04/26/99 CIMARRON CORPORATION - CIMARRON FACILITY ALPHA TRUE MEAN ACTIVITY VS. GUIDELINE VALLIE AT 95% CONFIDENCE AREA "I" TI02 ROOF SURVEY (AFFECTED) n = DPM /1 00cm2 Number n (n-N) (n-N)2 Number n 151 260.0 -155.25 207250.45 ' 201 620.0 152 560.0 -155.25 24101.84 202 490.0 153 510.0 -205.25 42126.61 203 1000.0 154 1350.0 634.75 402910.51 204 920.0 155 1120.0 404.75 163824.44 205 1440.0 156 960.0 244.75 59903.70 206 970.0 157 630.0 -85.25 7267.17 207 180.0 158 960.0 244.75 59903.70 208 780.0 159 670.0 -45.25 2047.35 209 610.0 160 730.0 14.75 217.63 210 670.0 161 490.0 -225.25 50736.52 211 810.0 162 590.0 -125.25 15686.98 212 940.0 163 500.0 -215.25 46331.56 213 990.0 164 460.0 -255.25 65151.38 214 650.0 165 840.0 124.75 15563.14 215 120.0 166 870.0 154.75 23948.28 216 300.0 167 230.0 -485.25 235465.31 217 200.0 168 290.0 -425.25 180835.59 218 610.0 169 1000.0 284.75 81083.88 219 240.0 170 500.0 -215.25 46331.56 220 420.0 171 710.0 -5.25 27.54 221 410.0 172 650.0 -65.25 4257.26 222 1190.0 173 570.0 -145.25 21096.89 223 1190.0 174 720.0 4.75 22.58 224 1150.0 175 310.0 -405.25 164225.68 225 950.0 176 490.0 -225.25 50736.52 226 1190.0 177 250.0 -465.25 216455.40 227 980.0 178 840.0 124.75 15563.14 228 1020.0 179 500.0 -215.25 46331.56 229 600.0 180 990.0 274.75 75488.84 230 1010.0 181 570.0 -145.25 21096.89 231 100.0 182 780.0 64.75 4192.86 232 210.0 183 790.0 74.75 5587.91 233 150.0 184 670.0 -15.25 2047.35 234 850.0 185 720.0 4.75 22.58 235 780.0 186 390.0 -325.25 105786.05 236 370.0 187 550.0 -165.25 27306.80 237 200.0 188 710.0 -5.25 27.54 238 320.0 189 310.0 -405.25 164225.68 239 890.0 190 360.0 -355.25 126200.91 ! 240 820.0 191 810.0 94.75 8978.00 241 640.0 192 620.0 -95.25 9072.12 242 800.0 193 320.0 -395.25 156220.73, 243 220.0 194 190.0 -525.25 275885,12 I 244 440.0 195 700.0 -15.25 232.49 245 220.0 196 1110.0 394.75 155829.40 ! 246 1090.0 197 1420.0 704.75 496675.84 247 850.0 198 630.0 -85.25 7267.17 248 230.0 199 1170.0 454.75 206799.67 249 120.0 200 760.0 44.75 2002.77 250 190.0 33130.0 4100350.9 32140.0 Sum(n) Sum(n-N)2 Sum(n) C:\\OFFICE\\QPW\\FSSRS\\Tl2RF _CA.WB2 DIRECT (n-N) (n-NP -95.25 9072.12 -225.25 50736.52 284.75 81083.88 204.75 41923.51 724.75 525265.93 254.75 64898.75 -535.25 286490.08 64.75 4192.86 -105.25 11077.07 -45.25 2047.35 94.75 8978.00 224.75 50513.61 274.75 75488.84 -65.25 4257.26 -595.25 354319.80 -415.25 172430.63 -515.25 265480.17 -105.25 11077.07 -475.25 225860.36 -295.25 87171.19 -305.25 93176.14 474.75 225389.77 474.75 225389.77 434.75 189009.58 234.75 55108.65 474.75 225389.77 264.75 70093.79 304.75 92873.98

115.25 13282.03 294.75 86878.93

-615.25 378529.71 -505.25 255275.22 -565.25 319504.94 134.75 18158.19 64.75 4192.86 -345.25 119195.96 -515.25 265480.17 -395.25 156220.73 174.75 30538.37 104.75 10973.05 -75.25 5662.21 84.75 7182.96 -495.25 245270.26 -275.25 75761.28 -495.25 245270.26 374.75 140439.30 134.75 18158.19 -485.25 235465.31 -595.25 354319.80 -525.25 275885.12 6770441.3 Sum(n-N)2 PAGE 3 OF 7

04/26/99 CIMARRON CORPORATION

CIMARRON FACILITY ALPHA TRUE MEAN ACTIVITY VS. GUIDELINE VAL4E AT 95% CONFIDENCE AREA "I" TI02 ROOF SURVEY (AFFECTED) n = DPM /1 OOcm2 Number n

(n-N) (n-N)2 Number n 251 60.0 -655.25 429349.52 301 230.0 252 130.0 -585.25 342514.84 302 240.0 253 80.0 -635.25 403539.61 303 230.0 254 250.0 -465.25 216455.40 304 140.0 255 120.0 -595.25 354319.80 305 200.0 256 940.0 224.75 50513.61 306 720.0 257 390.0 -325.25 105786.05 307 1120.0 258 280.0 -435.25 189440.54 308 780.0 259 380.0 -335.25 112391.01 309 1010.0 260 260.0 -455.25 207250.45 310 1120.0 261 420.0 -295.25 87171.19 311 990.0 262 310.0 -405.25 164225.68 312 1030.0 263 910.0 194.75 37928.47 313 1070.0 264 970.0 254.75 64898.75 314 960.0 265 250.0 -465.25 216455.40 315 1140.0 266 180.0 -535.25 286490.08 316 690.0 267 310.0 -405.25 164225.68 317 950.0 268 170.0 -545.25 297295.03 318 1270.0 269 250.0 -465.25 216455.40 319 1610.0 270 160.0 -555.25 308299.98 320 1180.0 271 140.0 -575.25 330909.89 321 1160.0 272 170.0 -545.25 297295.03 322 1290.0 273 250.0 -465.25 216455.40 323 730.0 274 140.0 -575.25 330909.89 324 550.0 275 500.0 -215.25 46331.56 325 360.0 276 1000.0 284.75 81083.88 326 710.0 277 210.0 -505.25 255275.22 327 860.0 278 210.0 -505.25 255275.22 328 940.0 279 150.0 -565.25 319504.94 329 870.0 280 1090.0 374.75 140439.30 330 680.0 281 670.0 -45.25 2047.35 331 400.0 282 520.0 -195.25 38121.66 332 630.0 283 230.0 -485.25 235465.31 333 520.0 284 290.0 -425.25 180835.59 334 510.0 285 190.0 --525.25 275885.12 335 640.0 286 130.0 -585.25 342514.84 336 430.0 287 430.0 -285.25 81366.24 337 500.0 288 270.0 -445.25 198245.49 338 610.0 289 210.0 -505.25 255275.22 339 130.0 i 290 1600.0 884.75 782786.67 340 240.0 291 1090.0 374.75 140439.30 341 510.0 292 850.0 134.75 18158.19 342 670.0 293 290.0 -425.25 180835.59 343 520.0 294 230.0 -485.25 235465.31 344 690.0 295 180.0 -535.25 286490.08 ' 345 490.0 296 1000.0 284.75 81083.88 346 300.0 297 410.0 -305.25 93176.14 347 640.0 298 130.0 -585.25 342514.84 348 620.0 299 270.0 -445.25 198245.49 349 470.0 300 100.0 -615.25 378529.71 350 520.0 19770.0 10875968.9 34870.0 Sum(n) Sum(n-N)2 Sum(n) C:\\OFFICE\\QPvV\\FSSRS\\Tl2RF _ CA.WB2 DIRECT (n-N) (n-N) 2 -485.25 235465.31 -475.25 225860.36 -485.25 235465.31 -575.25 330909.89 -515.25 265480.17 4.75 22.58 404.75 163824.44 64.75 4192.86 294.75 86878.93 404.75 163824.44 274.75 75488.84 314.75 99069.02 354.75 125849.21 244.75 59903.70 424.75 180414.54 -25.25 637.45 234.75 55108.65 554.75 307750.14 894.75 800581.72 464.75 215994.72 444.75 197804.63 574.75 330340.23 14.75 217.63 -165.25 27306.80 -355.25 126200.91 -5.25 27.54 144.75 20953.23 224.75 50513.61 154.75 23948.28 -35.25 1242.40 -315.25 99381.10 -85.25 7267.17 -195.25 38121.66

205.25 42126.61

-75.25 5662.21 -285.25 81366.24 -215.25 46331.56 -105.25 11077.07 -585.25 342514.84 -475.25 225860.36 -205.25 42126.61 -45.25 2047.35 -195.25 38121.66 -25.25 637.45

225.25 50736.52

-415.25 172430.63 -75.25 5662.21 -95.25 9072.12 -245.25 60146.42 -195.25 38121.66 5730089.0 Sum(n-N}1 PAGE 4 OF 7

06/17/99 CIMARRON CORPORATION - CIMARRON FACILITY ALPHA TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AREA "I" TI02 ROOF SURVEY (AFFECTED) n = DPM /1 OOcm2 Number n (n-N) (n*N}2 Number n 351 530.0 -185.25 34316.70 401 620.0 352 210.0 -505.25 255275.22 402 690.0 353 1130.0 414.75 172019.49 403 590.0 354 160.0 -555.25 308299.98 404 310.0 355 150.0 -565.25 319504.94 405 910.0 356 130.0 -585.25 342514.84 406 850.0 357 210.0 -505.25 255275.22 407 860.0 358 850.0 134.75 18158.19 408 630.0 359 160.0 -555.25 308299.98 409 810.0 360 360.0 -355.25 126200.91 410 970.0 361 570.0 -145.25 21096.89 411 690.0 362 280.0 -435.25 189440.54 412 720.0 363 870.0 154.75 23948.28 413 150.0 364 480.0 -235.25 55341.47 414 700.0 365 750.0 34.75 1207.72 415 780.0 366 530.0 -185.25 34316.70 416 1160.0 367 430.0 -285.25 81366.24 417 970.0 368 460.0 -255.25 65151.38 418 1060.0 369 970.0 254.75 64898.75 419 800.0 370 350.0 -365.25 133405.87 420 1500.0 371 360.0 -355.25 126200.91 421 860.0 372 200.0 -515.25 265480.17 422 780.0 373 850.0 134.75 18158.19 423 640.0 374 650.0 -65.25 4257.26 424 830.0 375 670.0 -45.25 2047.35 425 640.0 376 220.0 -495.25 245270.26 426 1130.0 377 440.0 -275.25 75761.28 427 1540.0 378 350.0 -365.25 133405.87 428 1020.0 379 330.0 -385.25 148415.77 429 900.0 380 210.0 -505.25 255275.22 430 650.0 381 230.0 -485.25 235465.31 431 1100.0 382 450.0 -265.25 70356.33 432 430,0 383 620.0 -95.25 9072.12 433 1370.0 384 530.0 -185.25 34316.70 434 1150.0 385 670.0 -45.25 2047.35 435 1350.0 386 520.0 -195.25 38121.66 436 1850.0 387 760.0 44.75 2002.77 437 960.0 388 470.0 -245.25 60146.42 438 520.0 389 870.0 154.75 23948.28 439 930.0 390 760.0 44.75 2002.77 440 1160.0 391 650.0 -65.25 4257.26 441 940.0 392 820.0 104.75 10973.05 442 930.0 393 940.0 224.75 50513.61 443 1460,0 394 930.0 214.75 46118.56 444 1450.0 395 640.0 -75.25 5662.21 445 1250.0 396 710.0 -5.25 27.54 446 1540.0 397 620.0 -95.25 9072.12 447 1240.0 398 780.0 64.75 4192.86 448 660.0 399 710.0 -5.25 27.54 449 1320.0 400 840.0 124.75 15563.14 450 1130.0 27380.0 4708199.2 47500.0 Sum(n) Sum(n-N)2 Sum{n} C:\\OFFICE\\QPW\\FSSRS\\Tl2RF _CA.WB2 DIRECT (n-N) (n-N) 2 -95.25 9072.12 ~25.25 637.45 -125.25 15686.98 -405.25 164225.68 194.75 37928.47 134.75 18158.19 144.75 20953.23 --85.25 7267.17 94.75 8978.00 254.75 64898.75 -25.25 637.45 4.75 22.58 -565.25 319504.94 -15.25 232.49 64.75 4192.86 444.75 197804.63 254.75 64898.75 344.75 118854.16 84.75 7182.96 784.75 615836.21 144.75 20953.23 64.75 4192.86 -75.25 5662.21 114.75 13168.10 -75.25 5662.21 414.75 172019.49 824.75 680216.39 304.75 92873.98 184.75 34133.42 -65.25 4257.26 384.75 148034.35 -285.25 81366.24 654.75 428700.60 434.75 189009.58 634.75 402910.51 1134.75 1287662.83 244.75 59903.70 -195.25 38121.66 214.75 46118.56 444.75 197804.63 224.75 50513.61 214.75 46118.56 744.75 554656.02 734.75 539860.97 534.75 285960.05 824.75 680216.39 524.75 275365.00 -55.25 3052.31 604.75 365725.37 414.75 172019.49 8563232.6 Sum(n-N}2 PAGES OF 7

04/26/99 CIMARRON CORPORATION -CIMARRON FACILITY ALPHA TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AREA "I" TIO2 ROOF SURVEY {AFFECTED) n = DPM /100cm2 Number n (n-N) (n-N)2 Number n 451 470.0 -245.25 60146.42 501 700.0 452 460.0 -255.25 65151.38 502 450.0 453 320.0 -395.25 156220.73 503 270.0 I 454 230.0 -485.25 235465.31 504 540.0 455 340.0 -375.25 140810.82 505 250.0 456 20.0 -695.25 483369.33 506 340.0 457 1160.0 444.75 197804.63 507 390.0 458 660.0 -55.25 3052.31 508 440.0 459 490.0 -225.25 50736.52 509 390.0 460 870.0 154.75 23948.28 510 360.0 461 910.0 194.75 37928.47 511 1280.0 462 970.0 254.75 64898.75 512 1130.0 463 1220.0 504.75 254774.91 513 860.0 464 1090.0 374.75 140439.30 514 1310.0 465 1000.0 284.75 81083.88 515 690.0 466 1430.0 714.75 510870.88 516 1380.0 467 470.0 -245.25 60146.42 517 700.0 468 550.0 -165.25 27306.80 518 650.0 469 370.0 -345.25 119195.96 519 360.0 470 360.0 -355.25 126200.91 520 300.0 471 240.0 -475.25 225860.36 521 410.0 472 510.0 -205.25 42126.61 522 370.0 473 110.0 -605.25 366324.75 523 650.0 474 200.0 -515.25 265480.17 524 750.0 475 350.0 -365.25 133405.87 525 750.0 476 260.0 -455.25 207250.45 526 430.0 477 730.0 14.75 217.63 527 580.0 478 1160.0 444.75 197804.63 528 560.0 479 950.0 234.75 55108.65 529 640.0 480 1130.0 414.75 172019.49 530 1020.0 481 650.0 -65.25 4257.26 531 990.0 482 570.0 -145.25 21096.89 532 830.0 483 580.0 -135.25 18291.93 533 640.0 484 770.0 54.75 2997.82 534 790.0 485 210.0 -505.25 255275.22 535 800.0 486 420.0 -295.25 87171.19 536 600.0 487 1130.0 414.75 172019.49 537 520.0 488 260.0 -455.25 207250.45 538 250.0 489 180.0 -535.25 286490.08 539 210.0 490 220.0 -495.25 245270.26 540 190.0 491 150.0 -565.25 319504.94 541 390.0 492 250.0 -465.25 216455.40 542 310.0 493 450.0 -265.25 70356.33 543 660.0 494 850.0 134.75 18158.19 544 690.0 495 960.0 244.75 59903.70 545 700.0 496 1050.0 334.75 112059.12 546 1050.0 497 710.0 -5.25 27.54 547 560.0 498 900.0 184.75 34133.42 548 750.0 499 980.0 264.75 70093.79 549 630.0 500 800.0 84.75 7182.96 550 720.0 31120.0 6713146.6 31230.0 Sum(n) Sum(n-N) 2 Sum(n) C:\\OFFICE\\QPVV\\FSSRS\\Tl2RF _CA.WB2 DIRECT (n-N) (n-N)~ -15.25 232.49 -265.25 70356.33 -445.25 198245.49 -175.25 30711.75 -465.25 216455.40 -375.25 140810.82 -325.25 105786.05 -275.25 75761.28 -325.25 105786.05 -355.25 126200.91 564.75 318945.19 414.75 172019.49 144.75 20953.23 594.75 353730.32 -25.25 637.45 664.75 441895.65 -15.25 232.49 -65.25 4257.26 -355.25 126200.91 -415.25 172430.63 -305.25 93176.14 -345.25 119195.96 -65.25 4257.26 34.75 1207.72 34.75 1207.72 -285.25 81366.24 -135.25 18291.93 -155.25 24101.84 -75.25 5662.21 304.75 92873.98 274.75 75488.84 114.75 13168.10 -75.25 5662.21 74.75 5587.91 84.75 7182.96 -115.25 13282.03 -195.25 38121.66 -465.25 216455.40 -505.25 255275.22 -525.25 275885.12 -325.25 105786.05 -405.25 164225.68 -55.25 3052.31 -25.25 637.45 -15.25 232.49 334.75 112059.12 -155.25 24101.84 34.75 1207.72 -85.25 7267.17 4.75 22.58 4447692.1 Sum(n-N)2 PAGE 60F 7

- 1*
04/26/99 CIMARRON CORPORATION - CIMARRON FACILITY ALPHA TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AREA "l 11 TIO2 ROOF SURVEY (AFFECTED) n = DPM /1 OOcm 2 Number n

(n-N) fn-N}2 Number n 551 730.0 14.75 217.63 601 980.0 552 1130.0 414.75 172019.49 602 560.0 553 380.0 -335.25 112391.01 603 740.0 554 370.0 -345.25 119195.96 604 860.0 555 160.0 -555.25 308299.98 605 1040.0 556 280.0 -435.25 189440.54 606 1190.0 557 120.0 -595.25 354319.80 607 1230.0 558 260.0 -455.25 207250.45 608 1280.0 559 180.0 -535.25 286490.08 609 1480.0 560 620.0 -95.25 9072.12 610 1060.0 561 440.0 -275.25 75761.28 611 830.0 562 500.0 -215.25 46331.56 612 700.0 563 380.0 -335.25 112391.01 613 580.0 564 320.0 -395.25 156220.73 614 1050.0 565 150.0 -565.25 319504.94 615 1040.0 566 340.0 -375.25 140810.82 616 740.0 567 210.0 -505.25 255275.22 617 1190.0 568 180.0 -535.25 286490.08 618 940.0 569 670.0 -45.25 2047.35 619 810.0 570 800.0 84.75 7182.96 620 1070.0 571 420.0 -295.25 87171.19 621 1020.0 572 1180.0 464.75 215994.72 622 1050.0 573 420.0 -295.25 87171.19 623 580.0 574 370.0 -345.25 119195.96 624 1120.0 575 400.0 -315.25 99381.10 625 890.0 576 440.0 -275.25 75761.28 626 1140.0 577 590.0 -125.25 15686.98 627 540.0 578 900.0 184.75 34133.42 628 740.0 579 760.0 44.75 2002.77 629 390.0 580 160.0 -555.25 308299.98 630 840.0 581 340.0 .. 375,25 140810.82 631 1190.0 582 550.0 -165.25 27306.80 632 700.0 583 580.0 -135.25 18291.93 633 1070.0 584 830.0 114.75 13168.10 634 860.0 585 530.0 -185.25 34316.70 635 890.0 586 820.0 104.75 10973.05 636 890.0 587 600.0 -115.25 13282.03 637 820.0 588 550.0 -165.25 27306.80 638 1350.0 589 750.0 34.75 1207.72 639 1800.0 590 190.0 -525.25 275885.12 640 840.0 591 500.0 -215.25 46331.56 641 980.0 592 890.0 174.75 30538.37 642 1270.0 593 570.0 -145.25 21096.89 643 1310.0 594 880.0 164.75 27143.33 644 920.0 595 480.0 -235.25 55341.47 645 960.0 596 860.0 144.75 20953.23 646 460.0 597 1120.0 404.75 163824.44 647 0.0 598 1010.0 294.75 86878.93 648 0.0 599 760.0 44.75 2002.77 649 1J.O 600 950.0 234.75 55108.65 650 0.0 27620.0 5277280.3 43990.0 Sum(n) Sum(n-N)2 Sum(n) DIRECT (n-N) 264.75 -155.25 24.75 144.75 324.75 474.75 514.75 564.75 764.75 344.75 114.75 -15.25 -135.25 334.75 324.75 24.75 474.75 224.75 94.75 354.75 304.75 334.75 -135.25 404.75 174.75 424.75 -175.25 24.75 -325.25 124.75 474.75 -15.25 354.75 144.75 174.75 174.75 104.75 634.75 1084.75 124.75 264.75 554.75 594.75 204.75 244.75 -255.25 0.00 0.00 0.00 0.00 PAGE 7 Of 7 C:\\OFFICE\\QPW'\\FSSRS\\ Tl2RF _ CA WB2 (n-N)2 70093.79 24101.84 612.68 20953.23 105464.07 225389.77 264969.95 318945.19 584846.11 118854.16 13168.10 232.49 18291.93 112059.12 105464.07 612.68 225389.77 50513.61 8978.00 125849.21 92873.98 112059.12 18291.93 163824.44 30538.37 180414.54 30711.75 612.68 105786.05 15563.14 225389.77 232.49 125849.21 20953.23 30538.37 30538.37 10973.05 402910.51 1176687.60 15563.14 70093.79 307750.14 353730.32 41923.51 59903.70 65151.38 0.00 0.00 0.00 0.00 6083654.4 Sum(n-N)2

1- ** 06/16/99 CIMARRON CORPORATION - CIMARRON FACILITY BETA DIRECT TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% OONFIDENCE AREA "I" Tl02 ROOF SURVEY (AFFECTED) n== DPM 11oocnr Number n ln-N) (n-N)-' 1 40.0 -2489.89 6199560.4 2 190.0 -2339.89 5475092.9 3 0.0 -2529.89 6400351.7 4 160.0 -2369.89 5616386.4 5 60.0 -2469.89 6100364.7 6 20.0 -2509.89 6299556.0 7 270.0 -2259.89 S107110.2 8 0.0

2529.89

&400351.7 9 370.0 -2159.89 "665131.9 10 230.0

2299.89 5289501.6 11 70.0

-2459.89 6051066.9 12 440.0 -2089.89 4367647.1 13 620.0 -1909.89 3647686.1 14 910.0 -1619.89 2624048.9 15 640.0 -1889.89 3571690.4 16 320.0 -2209.89 4883621.1 17 590.0 -1939.89 376-3179.6 18 2950.0 420.11 176491.0 19 1270.0 -1259.89 1587326.9 20 1000.0 -1529.89 2340568.4 21 8000 -1729.89 2992525.1 22 -470.0 -2059.89 4243153.6 23 2180.0 -349.89 122424.2 24 1190.0 -1339.89 1795309.6 25 2520.0 -9.89 97.8 26 3380.0 850.11 722684.2 27 2380.0 -149.89 22467.5 28 2100.0 -429.89 184806.8 29 2920.0 390.11 152184.5 30 2000.0 -529.89 280785.2 31 1990.0 -539.89 291483.0 32 1520.0 -1009.89 1019881.1 33 2170.0 -359.89 129522.0 34 2180.0 19.89 122,24.2 35 2650.0 120.11 14"26.0 36 3490.0 960.11 921808.1 37 3080.0 550.11 302619.2 38 760.0 -1769.89 3132516.4 39 390.0 -2139.89 4579136.2 40 1850.0 -679.89 "62252.6 41 1980.0 -549.89 302380.8 42 2080.0 -449.89 202-402.5 43 4640.0 2110.11 4452557.3 4" 1390.0 -1139.89 1299353.0 45 1300.0 -1229.89 1512633.4 46 1440.0 -1089.89 1187863.8 47 1310.0 -1219.89 1488135.6 48 12000 -1329.89 1768611.8 49 1110.0 -1419.89 2016092.3 50 1290.0 -1239.89 1537331.3 109770.0 44036674.9 138270.0 32698451.4 121690.0 28547058.2 181190.0 72887752.9 156780.0 54585362.8 128420.0 63233416.7 90520.0 36275603.1 13-4910.0 13710723.2 122600.0 15101955.4 145270.0 16719568.4 125920.0 7.(73674.9 111060.0 11807647.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 lot<</ 1634310 62-t904492.4 Sumln) Sum[n-N)" A:IT/2RF_CB \\f\\/82 No. of Sampln (x) : 646 COUNT TIME: 0,5 PI.INUTES Sa~ple Mean (NJ* Sum(n) +,....{x..,J.._._.....,..... --. S~ple Mean (N): I 2529.89 i I I St.\\d*nl... ***** ISd)

SORT [fn-NY * (* -1)]

J ndard Deviation: 902.11 Std Deviations: 1804.22 D l'lHI of Freedom(df).= (x)

1 Data listed on Tabla B-1

~ (df)"' I,.645 I Aref* Average Le\\lel (Aµ)= (N) + (elf) x [(Sd)/SQRT(xl] I (Aµ)= lcuJDEU~E VALUE, Actptable Level : DPM/100cm* DPM/100cm> DPM/100cm' I TABLE B -1 f~toni ror Compar1slon of Survy Data with Guldelines l(df} 95% 97.5°!. idf) 95% ' 1 6.314 12.706 19 1.729 12 2.92 4.303 20 1.725

3 2.353 3.182 21 1.721 14 2.132 2.776 22 1.717 J S 2.015 2.571 23 1.714 I S 1.943 2.447 24 1.711 17 1.895 2.365 25 1.708

s 1.86 2.306 26 1.706 i9 1.833 2.262 27 1.703 110 1.812 2.228 28 1.701 I 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 1 15 1.753 2.131 120 1.658 116 1.746 2.12 400 1.649: 17 1.74 2.11 Infinite 1.645

, 18 1.734 2.101 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 F+/-or 1.-alun of Oagr&es of Frndom not list11d: Int olate between the liste,...d_v_al_u.,....;.s_ . ---r-----,--:-::--.----, I high valuejZ) INFINITE Is (B) 1.645 95'Ai (dq low valueM 400 is (A) 1.649 951/4 De1-Jn,d valu11(df) (X) 645 is calculated as follow: fXFI(( (Ln(B)*Ln(A))

CZ*Y) >,...<~X_*Y_J _+ __

Ln~(A~)~}-r--~--,,--,,-----, r,,.,...,.. ~,.'.':' I... I,_... I "" I //4 PERF()RMED B~J.A,;,, 8~ DATE: /4116r o/ REVIEWED BY: 1J, 0. * ~ PAGE 1 OF 7

06/16/99 CIMARRON CORPORATION - CIMARRON FACILITY BETA TRUE MEAN ACTIVITY VS. GUIDELINE VALU~ AT 95% CONFIDENCE AREA 111" TI02 ROOF SURVEY (AFFtCTED) n = DPM /1 OOcm2 Number n {n-N) (n-N)2 Number 51 1060.0 -1469.89 2160581.44 101 52 1160.0 -1369.89 1876603.11 102 53 1300.0 -1229.89 1512633.45 103 54 740.0 -1789.89 3203712.09 104 55 1710.0 -819.89 672222.30 105 56 1420.0 -1109.89 1231859.45 106 57 1190.0 -1339.89 1795309.61 107 58 1220.0 -1309.89 1715816.11 108 59 1320.0 -1209.89 1463837.78 109 60 3300.0 770.11 593066.88 110 61 2360,0 -169.89 28863.17 111 62 4410.0 1880.11 3534807.44 112 63 3480.0 950.11 902705.89 113 64 3040.0 510.11 260210.54 114 65 3700.0 1170.11 1369153.57 115 66 2130.0 -399.89 159913.32 116 67 25B0.0 50.11 2510.85 117 68 2360.0 -169.89 28863.17 118 69 2840.0 310.11 96167.19 119 70 1640.0 -889.89 791907.13 120 71 2010.0 -519.89 270287.32 121 72 1760.0 -769.89 592733.14 122 73 1900.0 -629.89 396763.48 123 74 1960.0 -569.89 324776.48 124 75 1800.0 -729.89 532741.81 125 76 2940.0 410.11 168188.87 126 77 1410.0 -1119.89 1254157.29 127 78 1340.0 -1189.89 1415842.12 128 79 1480.0 -1049.89 1102272.46 129 80 1600.0 -929.89 864698.46 130 81 2810.0 280.11 78460.69 131 82 4270.0 1740.11 3027977.10 132 83 2900.0 370.11 136980.20 133 84 2870.0 340.11 115673.70 134 85 4030.0 1500.11 2250325.09 135 86 2460.0 -69.89 4884.84 136 87 2960.0 430.11 184993.20 137 88 3290.0 760.11 577764.72 138 89 2210.0 -319.89 102330.66 139 90 3180.0 650.11 422640.88 140 91 1940.0 -589.89 347972.15 141 92 2140.0 -389.89 152015.49 142 93 1390.0 -1139.89 1299352.95 143 94 1270.0 -1259.89 1587326.95 I 144 95 1580.0 -949.89 902294.13 145 96 1540.0 -989.89 979885.46 146 97 1900.0 -629.89 396763.48 147 98 1720.0 -809.89 655924.47 148 99 1880.0 -649.89 422359.14 149 100 2270.0 -259.89 67543.66 150 109770.0 44036674.9 Sum(n) Sum(n-N}3 A:\\Tl2RF _ CB.WB2 n 2840.0 4440.0 4120.0 2930.0 2810.0 2330.0 4200.0 3470.0 3480.0 3030.0 1610.0 2340.0 2700.0 2570.0 3290.0 2590.0 2080.0 3010.0 5380.0 3230.0 3020.0 2450.0 2100.0 2560.0 2380.0 3160.0 2540.0 2770.0 2950.0 3350.0 3080.0 3950.0 3620.0 1410.0 3010.0 3170.0 2890.0 2290,0 2170.0 1880.0 2190.0 2200.0 2010.0 1700.0 1710.0 1570.0 2460.0 2590,0 2260,0 2380.0 138270.0 Sum(n) DIRECT {n-N) (n-N) 2 310.11 96167.19 1910.11 3648513.94 1590.11 2528444.59 400.11 160086.70 280.11 78460.69 -199.89 39956.67 1670.11 2789261.93 940.11 883803.73 950.11 902705.89 500.11 250108.37 -919.89 846200.63 -189.89 36058.84 170.11 28936.85 40.11 1608.68 760.11 577764.72 60.11 3613.01 -449.89 202402.49 480.11 230504.04 2850.11 8123117.66 700.11 490151.71 490.11 240206.20 -79.89 6382.67 -429.89 184806.82 30.11 906.51 -149.89 22467.50 630.11 397036.54 10.11 102.18 240.11 57652.02 420.11 176491.03 820.11 672577.72 550.11 302619.21 1420.11 2016707.75 1090.11 1188336.23

1119.89 1254157.29 480.11 230504.04 640.11 409738.71 360.11 129678.03

-239.89 57548.00 -359.89 129521.99 -649.89 422359.14 -339.89 115526.33 -329.89 108828.49 -519.89 270287.32 -829.89 688720.14 -819.89 672222.30 -959.89 921391.96 -69.89 4884.84 60.11 3613.01 -269.89 72841.50 -149.89 22467.50 32698451.4 Sum(n-N) 2 PAGE 2 OF 7

06/16/99 CIMARRON CORPORATION - CIMARRON FAq lLITY BET A TRUE MEAN ACTIVITY VS. GUIDELINE VALUE'AT 95% CONFIDENCE AREA "I" TI02 ROOF SURVEY (AFFaCTED) n = DPM /1 OOcm 2 Number n (n-N} (n-N)2 Number n 151 1960.0 -569.89 324776.48 201 3470.0 152 1900.0 -629.89 396763.48 202 3530.0 153 2740.0 210.11 44145.52 203 3360.0 154 3450.0 920.11 846599.39 204 3500.0 155 1110.0 -1419.89 2016092.27 205 5900.0 156 1680.0 -849.89 722315.80 206 4040.0 157 1810.0 -719.89 518243.97 207 3740.0 158 15B0.0 -949.89 902294.13 208 3300.0 159 1880.0 -649.89 422359.14 209 2990.0 160 1790.0 -739.89 547439.64 210 3670.0 161 1190.0 -1339.89 1795309.61 211 4060.0 162 1740.0 -789.89 623928.80 212 4270.0 163 1580.0 -949.89 902294.13 213 3750.0 164 1960.0 -569.89 324776.48 214 3640.0 165 2060.0 -469.89 220798.15 215 3370.0 166 2550.0 20.11 404.35 216 3340.0 167 21 10.0 -419.89 176308.99 217 3430.0 168 1030.0 -1499.89 2249674.93 218 3500.0 169 2020.0 -509.89 259989.49 219 3190.0 170 1880.0 -649.89 422359.14 220 3950.0 171 3220.0 690.11 476249.55 221 3700.0 172 1980.0 -549.89 302380.82 222 4080.0 173 2160.0 -369.89 136819.83 223 3250.0 174 2340.0 -189.89 36058.84 224 4010.0 175 2140.0 -389.89 152015.49 225 3670.0 176 2210.0 -319.89 102330.66 226 4020.0 177 1050.0 -1479.89 2190079.27 227 3410.0 178 2760.0 230.11 52949.86 228 3720.0 179 2320.0 -209.89 44054.50 229 4550.0 180 3450.0 920.11 846599.39 230 3500.0 181 3210.0 680.11 462547.38 231 3320.0 182 3350.0 820.11 672577.72 232 3200.0 183 3570.0 1040.11 1081825.40 233 3010.0 184 3580.0 1050.11 1102727.57 234 3100.0 185 2980.0 450.11 202597.53 235 3400.0 186 2560.0 30.11 906.51 236 3500.0 187 2970.0 440.11 193695.37 237 3510.0 188 3220.0 690.11 476249.55 238 3770.0 189 2060.0 -469.89 220798.15 239 5030.0 190 2120.0 -409.89 168011.16 240 3970.0 191 2380.0 -149.89 22467.50 241 3540.0 192 2710.0 180.11 32439.02 242 3060.0 193 2080.0 -449.89 202402.49 243 3410.0 194 2530.0 0.11 0.01 244 3410.0 195 3000.0 470.11 221001.87 245 3230.0 196 3250.0 720.11 518556.05 246 3640.0 197 3510.0 980.11 960612.40 247 3160.0 198 3410.0 880.11 774590.72 248 3680.0 199 3970.0 1440.11 2073912.09 249 3300.0 200 3580.0 1050.11 1102727.57 250 3040.0 121690.0 28547058.2 181190.0 Sum{n) Sum(n-N)2 Sum{n) A:\\Tl2RF _CB.WB2 DIRECT (n-N) (n-N)2 940.11 883803.73 1000.11 1000216.73 830.11 689079.89 970.11 941110.23 3370.11 11357630.35 1510.11 2280427.26 1210.11 1464362.24 770.11 593066.88 460.11 211699.70 1140.11 1299847.07 1530.11 2341231.59 1740.11 3027977.10 1220.11 1488664.41 1110.11 1232340.57 840.11 705782.06 810.11 656275.55 900.11 810195.06 970.11 941110.23 660.11 435743.05 1420.11 2016707.75 1170.11 1369153.57 1550.11 2402835.93 720.11 518556.05 1480.11 2190720.75 1140.11 1299847.07 1490.11 2220422.92 880.11 774590.72 1190.11 1416357.91 2020.11 4080837.78 970.11 941110.23 790.11 624271.22 670.11 449045.21 480.11 230504.04 570.11 325023.54 870.11 757088.56 970.11 941110.23 980.11 960612.40 1240.11 1537868.74 2500.11 6250541.81 1440.11 2073912.09 1010.11 1020318.90 530.11 281014.87 880.11 774590.72 880.11 774590.72 700.11 490151.71 1110.11 1232340.57 630.11 397036.54 1150.11 1322749.24 770.11 593066.88 510.11 260210.54 72887752.9 Sum(n-N}2 PAGE 3 OF 7

1---* 06/16/99 CIMARRON CORPORATION - CIMARRON FACILITY BETA TRUE MEAN ACTIVITY VS. GUIDELINE VALUEl AT 95% CONFIDENCE AREA ul" TI02 ROOF SURVEY (AFFECTED) n = DPM /100cm2 Number n (n-N) (n-N)2 Number n 251 3510.0 980.11 960612.40 301 2230.0 252 3140.0 610.11 372232.21 302 3370.0 253 2420.0 -109.89 12076.17 303 4800.0 254 4210.0 1680.11 2822764.10 304 1180.0 255 3680.D 1150.11 1322749.24 305 3080.0 256 4710.0 2180.11 4752872.46 306 2920.0 257 3300.0 770.11 593066.88 307 5160.0 258 3440.0 910.11 828297.23 308 3810.0 259 3990.0 1460.11 2131916.42 309 3900.0 260 3290.0 760.11 577764.72 310 3740.0 261 3050.0 520.11 270S12.71 311 3680.0 262 3240.0 710.11 504253.88 312 3820.0 263 3230.0 700.11 490151.71 313 3150.0 264 2910.0 380.11 144482.36 314 3680.0 265 4550.0 2020.11 4080837.78 315 3800.0 266 4900.0 2370.11 5617413.63 316 3670.0 267 3280.0 750.11 562662.55 317 3850.0 268 3410.0 880.11 774590.72 318 3720.0 269 3550.0 1020.11 1040621.06 319 4060.0 270 4920.0 2390.11 5712617.97 320 3890.0 271 4380.0 1850.11 3422900.94 321 3710.0 272 3760.0 1230.11 1513166.58 322 3690.0 273 2210.0 -319.89 102330.66 323 3980.0 274 2620.0 90.11 8119.52 324 2090.0 275 2430.0 -99.89 9978.34 325 1220.0 276 2390.0 -139.89 19569.67 326 1820.0 277 1630.0 -899.89 809804.97 327 2190.0 278 2470.0 -59.89 3587.01 328 2150.0 279 1450.0 -1079.89 1166165.96 329 2390.0 280 2080.0 -449.89 202402.49 330 1970.0 281 2790.0 260.11 67656.36 331 2090.0 282 2570.0 40.11 1608.68 332 1380.0 283 3320.0 790.11 624271.22 333 1380.0 284 4090.0 1560.11 2433938.09 334 1330.0 285 4280.0 1750.11 3062879.27 335 1150.0 286 3180.0 650.11 422640.88 336 1280.0 287 1960.0 -569.89 324776.48 337 1610.0 288 2530.0 0.11 0.01 338 1640.0 289 2570.0 40.11 1608.68 339 1370.0 290 4890.0 2360.11 5570111.47 340 1510.0 291 2510.0 -19.89 395.68 341 2530.0 292 2450.0 -79.89 6382.67 342 1720.0 293 3080.0 550.11 302619.21 343 1280.0 294 2130.0 -399.89 159913.32 344 1860.0 295 2420.0 -109.89 12076.17 345 2090.0 296 2690.0 160.11 25634.69 346 1540.0 297 2570.0 40.11 1608.68 347 1780.0 298 2850.0 320.11 102469.36 348 1010.0 299 3320.0 790.11 624271.22 349 1590.0 300 2430.0 -99.89 9978.34 350 1560.0 156780.0 54585362.8 128420.0 Sum(n) Sum{n-N)2 Sum(n) A:\\Tl2RF _CB.WB2 DIRECT (n-N) (n-N)2 -299.89 89935.00 840.11 705782.06 2270.11 5153391.96 -1349.89 1822207.44 550.11 302619.21 390.11 152184.53 2630.11 6917469.98 1280.11 1638677.41 1370.11 1877196.92 1210.11 1464362.24 1150.11 1322749.24 1290.11 1664379.58 620.11 384534.38 1150.11 1322749.24 1270.11 1613175.24 1140.11 1299847.07 1320.11 1742686.08 1190.11 1416357.91 1530.11 2341231.59 1360.11 1849894.75 1180.11 1392655.74 1160.11 1345851.40 1450.11 2102814.25 -439.89 193504.66 -1309.89 1715816.11 -709.89 503946.14

339.89 115526.33

-379.89 144317.66 -139.89 19569.67 -559.89 313478.65 -439.89 193504.66 -1149.89 1322250.79 -1149.89 1322250.79 -1199.89 1439739.95 -1379.89 1904100.94

1249.89 1562229.11

-919.89 846200.63 -889.89 791907.13 -1159.89 1345348.62 -1019.89 1040178.96 0.11 0.01 -809.89 655924.47 -1249.89 1562229.11 -669.89 448754.81 -439.89 193504.66 -989.89 979885.46 -749.89 562337.47

1519.89 2310070.60

-939.89 883396.30 -969.89 940689.80 63233416.7 Sum(n-N) 2 PAGE40F7

D6/16/99 CIMARRON CORPORATION -CIMARRON FACILITY BETA TRUE MEAN ACTIVITY VS. GUIDELINE VALUI: AT 95% CONFIDENCE AREA 111" TIO2 ROOF SURVEY (AFFECTED) n = DPM /1 OOcm2 Number n (n-N} (n-Nf Number n 351 1140.0

1389.89 1931798.77 401 1800.0 352 1610.0

-919.89 846200.63 402 2190.0 353 2350.0 -179.89 32361.00 403 1860.0 354 1760.0 -769.89 592733.14 404 2320.0 355 420.0

2109.89 4451642.74 405 2540.0 356 1750.0

-779.89 608230.97 406 2690.0 357 1790.0 -739.89 547439.64 407 2360.0 358 2630.0 100.11 10021.68 408 3350.0 359 1330.0 -1199.89 1439739.95 409 2900.0 360 1950.0 -579.89 336274.32 410 2250.0 361 1600.0

929.89 864698.46 411 2020.0 362 1830.0

-699.89 489848.31 412 1620.0 363 2310.0 -219.89 48352.33 413 2080.0 364 1940.0 -589.89 347972.15 414 2120.0 365 2160.0 -369.89 136819.83 415 2320.0 366 1520.0 -1009.89 1019881.13 416 2660.0 367 1680.0 -849.89 722315.80 417 3250.0 368 1880.0 -649.89 422359.14 418 2340.0 369 1840.0 -689.89 475950.48 419 3000.0 370 1490.0 -1039.89 1081374.62 420 3450.0 371 1380.0 -1149.89 1322250.79 421 2680.0 372 1850.0 .679.89 462252.64 422 2760,0 373 1870.0 .659.89 435456.98 423 2360.0 374 2280.0 -249.89 62445.83 424 2510.0 375 2030.0 -499.89 249891.65 425 3200.0 376 1470.0 -1059.89 1123370.29 426 3300.0 377 1490.0 -1039.89 1081374.62 427 3260.0 378 1240.0 -1289.89 1663820.45 428 2330.0 379 1270.0 -1259.89 1587326.95 429 2460,0 380 940.0 -1589.89 2527755.43 430 2300.0 381 1210.0 -1319.89 1742113.94 431 2750.0 382 940.0 -1589.89 2527755.43 432 2050.0 383 1980.0 -549.89 302380.82 433 2750.0 384 1530.0 -999.89 999783.29 434 2860.0 385 2100.0 -429.89 184806.82 435 2930.0 386 1700.0 -829.89 688720.14 436 3850.0 387 1680.0 -849.89 722315.80 437 3080.0 388 1910.0 -619.89 384265.65 438 2880.0 389 2370.0

159.89 25565.34 439 2920.0 390 2160.0

-369.89 136819.83 440 2620.0 391 2530.0 0.11 0.01 441 2240.0 392 2310.0 -219.89 48352.33 442 3240.0 393 2410.0 -119.89 14374.01 443 3620.0 394 2390.0

139.89 19569.67 444 3600,0 395 2350.0
179.89 32361.00 445 2790.0 396 2210.0

-319.89 102330.66 446 2740.0 397 2030.0 -499.89 249891.65 447 3210.0 398 2300.0 -229.89 52850.17 448 2920.0 399 1990.0 -539.89 291482.98 449 2790.0 400 1620.0 -909.89 827902.80 450 2790.0 90520.0 36275603.1 134910.0 Sum(n) Sum(n-N)2 Sum(n} A:\\TJ2RF _CB.WB2 DIRECT (n-N) (n-N) 2 -729.89 532741.81 -339.89 115526.33 -669.89 448754.81 -209.89 44054.50 10.11 102.18 160.11 25634.69 -169.89 28863.17 820.11 672577.72 370.11 136980.20 -279.89 78339.33 -509.89 259989.49 -909.89 827902.80 -449.89 202402.49 -409.89 168011.16 -209.89 44054.50 130.11 16928.19 720.11 518556.05 -189.89 36058.84 470.11 221001.87 920.11 846599.39 150.11 22532.52 230.11 52949.86 -169.89 28863.17 -19.89 395.68 670.11 449045.21 770.11 593066.88 730.11 533058.22 -199.89 39956.67 -69.89 4884.84 -229.89 52850.17 220.11 48447.69 -479.89 230295.99 220.11 48447.69 330.11 108971.53 400.11 160086.70 1320.11 1742686.08 550.11 302619.21 350.11 122575.86 390.11 152184.53 90.11 8119.52 -289.89 84037.16 710.11 504253.88 1090.11 1188336.23 1070.11 1145131.90 260.11 67656.36 210.11 44145.52 680.11 462547.38 390.11 152184.53 260.11 67656.36 260.11 67656.36 13710723.2 Sum(n-N)2 PAGE 5 OF 7

06/16/99 CIMARRON CORPORATION -CIMARRON FACILITY BETA TRUE MEAN ACTIVITY VS. GUIDELINE VALUc AT 95% CONFIDENCE AREA "I" TIO2 ROOF SURVEY (AFFECTED) n = OPM /1 OOcm2 Number n (n-N) (n-N)2 Number n 451 1690.0 -839.89 705417.97 501 2540.0 452 2150.0 -379.89 144317.66 502 2780.0 453 1870.0 -659.89 435456.98 503 2470.0 454 1970.0 -559.89 313478.65 504 2630.0 455 1990.0 -539.89 291482.98 505 2830.0 456 900.0 -1629.89 2656546.76 506 3360.0 457 2350.0 -179.89 32361.00 507 3140.0 458 2710.0 180.11 32439.02 508 3380.0 459 2250.0 -279.89 78339.33 509 3600.0 460 3830.0 1300.11 1690281.75 510 3520.0 461 2340.0 -189.89 36058.84 511 2940.0 462 2940.0 410.11 168188.87 512 1970.0 463 3180.0 650.11 422640.88 513 2540.0 464

2440.0

-89.89 8080.51 514 2610.0 465 2700.0 170.11 28936.85 515 2810.0 466 2660.0 130.11 16928.19 516 2950.0 467 1770.0 -759.89 577435.31 517 2310.0 468 2090.0 -439.89 193504.66 518 2780.0 469 2080.0 -449.89 202402.49 519 3460.0 470 1340.0 -1189.89 1415842.12 520 2320.0 471 1760.0 -769.89 592733.14 521 2600.0 472 2120.0 -409.89 168011.16 522 2740.0 473 2010.0 -519.89 270287.32 523 2990.0 474 2290.0 -239.89 57548.00 524 3440.0 475 2630.0 100.11 10021.68 525 3650.0 476 2880.0 350.11 122575.86 526 3350.0 477 3130.0 600.11 360130.04 527 4000.0 478 2430.0 -99.89 9978.34 528 2950.0 479 2910.0 380.11 144482.36 529 2600.0 480 3240.0 710.11 504253.88 530 2810.0 481 3200.0 670.11 449045.21 531 2820.0 482 2620.0 90.11 8119.52 532 2930.0 483 2330.0 -199.89 39956.67 533 2840.0 484 2630.0 100.11 10021.68 534 2190.0 485 1990.0 -539.89 291482.98 535 3180.0 486 2420.0 -109.89 12076.17 536 2670.0 487 2040.0 -489.89 239993.82 537 2610.0 488 2470.0 -59.89 3587.01 538 2680.0 489 2460.0 -69.89 4884.84 539 2670.0 490 2190.0 -339.89 115526.33 540 2660.0 491 2280.0 -249.89 62445.83 541 2390.0 492 2270.0 -259.89 67543.66 542 2550.0 493 2850.0 320.11 102469.36 543 2500.0 494 3460.0 930.11 865101.56 544 3670.0 495 2420.0 -109.89 12076.17 545 3970.0 496 2640.0 110.11 12123.85 546 3190.0 497 2620.0 90.11 8119.52 547 2810.0 498 3150.0 620.11 384534.38 548 3010.0 499 3380.0 850.11 722684.22 549 2830.0 500 2530.0 0.11 0.01 550 3030.0 122600.0 15101955.4 145270.0 Sum(n) Sum(n-N)2 Sum(n) A:\\T12RF _CB.WB2 DIRECT (n-N) (n-N}2 10.11 102.18 250.11 62554.19 -59.89 3587.01 100.11 10021.68 300.11 90065.03 830.11 689079.89 610.11 372232.21 850.11 722684.22 1070.11 1145131.90 990.11 980314.56 410.11 168188.87 -559.89 313478.65 10.11 102.18 80.11 6417.35 280.11 78460.69 420.11 176491.03 -219.89 48352.33 250.11 62554.19 930.11 865101.56 -209.89 44054.50 70.11 4915.18 210.11 44145.52 460.11 211699.70 910.11 828297.23 1120.11 1254642.74 820.11 672577.72 1470.11 2161218.59 420.11 176491.03 70.11 4915.18 280.11 78460.69 290.11 84162.86 400.11 160086.70 310.11 96167.19 -339.89 115526.33 650.11 422640.88 140.11 19630.35 80.11 6417.35 150.11 22532.52 140.11 19630.35 130.11 16928.19 -139.89 19569.67 20.11 404.35

29.89 893.51 1140.11 1299847.07 1440.11 2073912.09 660.11 435743.05 280.11 78460.69 480.11 230504.04 300.11 90065.03 500.11 250108.37 16719568.4 Sum(n-N),

PAGE 6 OF 7

06/16/99 CIMARRON CORPORATION -CIMARRON FACILITY BETA DIRECT TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AREA "I" TIO2 ROOF SURVEY (AFFECTED) n = DPM /1 OOcm2 Number n (n-N) (n-N)2 551 3330.0 800.11 640173.39 Number n (n-N) (n-N)2 601 2450.0 -79.89 6382.67 552 3640.0 1110.11 1232340.57 602 2030.0 -499.89 249891.65 553 2620.0 90.11 8119.52 603 2440.0 -89.89 8080.51 554 2330.0 -199.89 39956.67 604 2480.0 -49.89 2489.18 555 2550.0 20.11 404.35 605 2460.0 -69.89 4884.84 556 2560.0 30.11 906.51 606 2490.0 -39.89 1591.34 557 2410.0 -119.89 14374.01 607 2no.o 240.11 57652.02 558 2480.0 -49.89 2489.18 608 2930.0 400.11 160086.70 559 2270.0 -259.89 67543.66 609 3220.0 690.11 476249.55 560 2970.0 440.11 193695.37 610 2650.0 120.11 14426.02 561 3080.0 550.11 302619.21 611 2410.0 -119.89 14374.01 562 2140.0 -389.89 152015.49 612 2940.0 410.11 168188.87 563 2080.0 -449.89 202402.49 613 2080.0 -449.89 202402.49 564 1790.0 -739.89 547439.64 614 3100.0 570.11 325023.54 565 2680.0 150.11 22532.52 615 2670.0 140.11 19630.35 566 2010.0 -519.89 270287.32 616 2600.0 70.11 4915.18 567 2030.0 -499.89 249891.65 617 2910.0 380.11 144482.36 568 2240.0 -289.89 84037.16 618 2330.0 -199.89 39956.67 569 2310.0 -219.89 48352.33 619 2340.0 -189.89 36058.84 570 2340.0 -189.89 36058.84 620 2810.0 280.11 78460.69 571 2560.0 30.11 906.51 621 2510.0 -19.89 395.68 572 3390.0 860.11 739786.39 622 2940.0 410.11 168188.87 573 2670.0 140.11 19630.35 623 2600.0 70.11 4915.18 574 2560.0 30.11 906.51 624 3410.0 880.11 774590.72 575 2190.0 -339.89 115526.33 576 2490.0 -39.89 1591.34 577 2560.0 30.11 906.51 625 2650.0 120.11 14426.02 626 3280.0 750.11 562662.55 627 2590.0 60.11 3613.01 578 3380.0 850.11 722684.22 628 2660.0 130.11 16928.19 579 3030.0 500.11 250108.37 629 2350.0 -179.89 32361.00 580 2000.0 -529.89 280785.15 630 1610.0 -919.89 846200.63 581 2020.0 -509.89 259989.49 631 1780.0 -749.89 562337.47 582 2340.0 -189.89 36058.84 632 1530.0 -999.89 999783.29 583 2390.0 -139.89 19569.67 633 2100.0 -429.89 184806.82 584 2110.0 -419.89 176308.99 634 1360.0 -1169.89 1368646.45 585 2260.0 -269.89 72841.50 635 1600.0 -929.89 864698.46 586 2870.0 340.11 115673.70 636 1880.0 -649.89 422359.14 587 2320.0 -209.89 44054.50 637 1880.0 -649.89 422359.14 588 2600.0 70.11 4915.18 638 2920.0 390.11 152184.53 589 2750.0 220.11 48447.69 639 3120.0 590.11 348227.88 590 2270.0 -259.89 67543.66 640 2150.0 -379.89 144317.66 591 2360.0 -169.89 28863.17 641 1790.0 -739.89 547439.64 592 2640.0 110.11 12123.85 642 2020.0 -509.89 259989.49 593 2300.0 . -229.89 52850.17 643 2260.0 -269.89 72841.50 594 2800.0 270.11 72958.53 644 1710.0 -819.89 672222.30 595 2720.0 190.11 36141.19 645 2030.0 -499.89 249891.65 596 2410.0 -119.89 14374.01 646 2220.0 -309.89 96032.83 597 2490.0 -39.89 1591.34 647 0.0 0.00 0.00 598 2710.0 180.11 32439.02 648 0.0 0.00 0.00 599 2200.0 -329.89 108828.49 649 0.0 0.00 0.00 600 2670.0 140.11 19630.35 125920.0 7473674.9 650 0.0 0.00 0.00 111060.0 11807647.6 Sum(n) Sum(n*N)2 Sum(n) Sum(n-N)2 PAGE 7 OF 7 A:\\Tl2RF _CB.WB2

NORTH WALL 1 2 3 4 5 6 7 8 9 10 160N 160N 97E 92[ 87[ 82[ 76E 70E 64E 63E 61.SE 58E SOUTH WALL 16 17 18 19 20 21 22 23 24 25 144.6N 144.6N

- --*. 57£ 62E 67E 69[

72[ 80[ 84E 89E 94E 97E WEST WALL EAST WALL 11 12 13 14 15 J26 27 28 29 JO 198[ 55E 55E 159N 153N 151N 148N 146N 145N 149N 153N 156N 159N NOTE: ~ CIMARRON CORPORATION REFER TO DATA TABLES FOR SURVEY RESULTS. CIMARRON FACILITY 5 0 5 PHASE II - SUB-AREA I ...r---~ i Q Ti02 BLDG. - OUTSIDE WALLS 4~ ALPHA & BETA-GAMMA SURVEY LOCATIONS S C A L E I N M E T E R S DRWN. DATE I SCALI: AS SHOWN REV. DESCRIPTION PRWNBY: CK'O BY: APP'D BY: DATE Bl' JE 5-28-99 JOB NO. ORAl'llNG NO. l Ro 0 DRAWING ISSUED JE WR JL 6/21/99 99 POSIWAS-7 ... SU BA.REAi\\ T102-BLOG\\ Tl02-0UTSIDE -WALLS

05/13/99 I CIMAR RON FACILITY TIO2 BUILDING - OL TSIDE WALLS SUB AREA "I" ALPHA AND BETA/( ~AMMA UNAFFECTED PHASE II INSTRUMENTS SIN RESULTS IN BKG MDA LUDLUM MICRO-R METER - MODEL 19 138420 Micro-R/Hr 9 2 ALPHA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 6 cpm 72DPM BETA DIRECT LUDLUM 2224 89 PROBE 114616 DPM/100cm2 288 cpm 542 DPM ALPHA- .3 cpm 11 Cl-01 DPM/100cm2 DPM/100cm 2 ALPHA AND BETA SMEAR TENNELEC LB-510!0 BETA-2cpm 18 DPM/100 cm2 DPM/100cm2 REVIEWED BY: 10, ct. h,'?.. _.,<./~ DATE: 5--- Ir? -9 '1 LN TIO2 BUILDING READING DIRECf SMEAR µR/Hr@ OUTSIDE WALLS ID ALPH~ BETA ALPHA BETA 1 METER 1 NORTH WALL 1 0 0 2 4 6 2 NORTH WALL 2 30 0 2 2 7 3 NORTH WALL 3 100 0 2 11 9 4 NORTH WALL 4 70 130 10 0 8 5 NORTH WALL 5 120 80 5 4 7 6 NORTH WALL 6 80 0 0 0 6 7 NORTH WALL 7 30 80 0 0 4 8 NORTH WALL 8 60 40 2 7 5 9 NORTH WALL g 30 0 0 5 5 10 NORTH WALL 10 10 0 2 11 6 11 WEST WALL 11 10 0 0 2 6 12 WEST WALL 12 30 0 0 5 6 13 WEST WALL 13 70 0 2 9 8 14 WEST WALL 14 40 60 0 2 7 15 WESTWALL 15 0 160 0 2 8 16 SOUTH WALL 16 10 210 0 0 9 17 SOUTH WALL 17 80 0 0 2 8 18 SOUTH WALL 18 50 0 2 7 7 19 SOUTH WALL 19 160 ; 0 5 4 7 20 SOUTH WALL 20 10 20 2 2 7 21 SOUTH WALL 21 110 : 0 5 2 5 22 SOUTH WALL 22 60 0 0 7 7 23 SOUTH WALL 23 110 0 5 4 7 24 SOUTH WALL 24 80 0 4 9 6 25 SOUTH WALL 25 190 30 4 9 5 26 EAST WALL 26 120 530 0 7 7 27 EAST WALL 27 110 0 0 9 5 28 EAST WALL 28 80 0 0 0 5 29 EAST WALL 29 60 0 5 0 5 30 EAST WALL 30 30 0 0 12 4 7\\:TI LUL I WAL. V\\lt:SL l

06/15/99 CIMARRON CORPORATION

CIMARRON FACILITY ALPHA DIRECT TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AREA "I" 1102 BUILDING - OUTSIDE WALLS (UNAFFECTED) n = DPM /1 00cmJ Number n

(n-N) (n-N}' 1 0.0 ~.7 4181.8 2 30.0 -34.7 1201.8 3 100.0 35.3 1248.4 4 70.0 5.3 28.4 5 120.0 55.3 3061.8 6 80.0 15.3 235.1 7 30.0 -34.7 1201.8 8 60.0 -4.7 21.8 9 30.0 -34.7 1201.8 10 10.0 -54.7 2988.4 11 10.0 -54.7 2988.4 12 30.0 -34.7 1201.8 13 70.0 5.3 28.4 14 40.0 -24.7 608.4 15 0.0 -64.7 4181.8 16 10.0 -54.7 2988.4 17 80.0 15.3 235.1 18 50.0 -14.7 215.1 19 160.0 95.3 9088.4 20 10.0 -54.7 2988.4 21 110.0 45.3 2055.1 22 60.0 -4.7 21.8 23 110.0 45.3 2055.1 24 80.0 15.3 235.1 25 190.0 125.3 15708.4 26 120.0 55.3 3061.8 27 110.0 45.3 2055.1 28 80.0 15.3 235.1 29 60.0 -4.7 21.8 30 30.0 -34.7 1201.8 31 0.0 0.0 0.0 32 0.0 0.0 0.0 33 0.0 0.0 0.0 34 o.o 0.0 D.O 35 0.0 0.0 0.0 36 0.0 0.0 0.0 37 0.0 0.0 0.0 38 0.0 0.0 0.0 39 0.0 0.0 0.0 40 0.0 0.0 0.0 41 0.0 0.0 0.0 42 0.0 0.0 0.0 43 0.0 0.0 0.0 44 0.0 o.o 0.0 45 0.0 0.0 0.0 46 0.0 0.0 0.0 47 0.0 0.0 0.0 48 0.0 0.0 0.0 49 0.0 0.0 0.0 50 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 TOTAL 1940 66546.7 Sumln) Sum(n-N)' A:\\T2WLOCMA.\\NB2 No. of Samples (x): COUt(T TIME: 0.5 MINUTES Sampl Sampl 30 DevlaUon (Sd)

SQRT [(n-N)' + (x - 1)1 47.90 2 S Deviations:

95.81 Degree or Frffdom(df).* (x) - 1 Data listed on Table-B*1 (df}., I 1.699 1 Area's verage Level (Aµ) = (N) + (df) x [{Sd)/SQRT(x)] i (Aµ)= §ia. OUl~ELINE VALUE: Accep1ble Level: TABLE B-1 DPM 11 ooem* DPM /100cm* DPM /100cm* Fae, l(>rs for Comparision of Survey Data with Guidelines (df 95'-" 97.5% (df) 951/4 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 S! 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 Forval1 es of Degrees of Freedom not listed: lnterpoll!t.e between the listed values. 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 (df) hig~ value(Z) 40 is (B) 1.684 951/4 (df) low valu&(Y) 29 is (A) 1.699 95% Desir~ value(df) {Xt 29 Is calculated as follow: EXP[( ('tn(B)-Ln(A))-+ (Z-Y),...).,_(X_-Y)-'-+_L_n(::....A.!..;) ]=-.----..,.....------, The (df) value for (X) I 29 I 1.699 95% r ~ PERFORMED BYtVi t /J-.,,µ.... ~ DATE: REVl~D BY: DATE: i PAGE _OF_ 1_PAGES

06/16/99 CIMARRON CORPORATION

CIMARRON FACILITY BETA DIRECT TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95o/e QONFIDENCE AREA "I" TlO2 BUILDING* OUTSIDE WALLS (UNAFFfCilD) n = DPM /100cm' Number n

(n-N) (n-NP 1 0.0 -44.7 1995.1 2 0.0 -44.7 1995.1 3 0.0 4.7 1995.1 4 130.0 85.3 7281.8 5 80.0 35.3 1248.4 6 0.0 4.7 1995.1 7 80.0 35.3 1248.4 8 40.0 .7 21.8 9 0.0 -44.7 1995.1 10 0.0 -44.7 1995.1 11 0.0 ...<<.7 1995.1 12 0.0 -44.7 1995.1 13 0.0 ...<<.7 1995.1 14 60.0 15.3 235.1 15 160.0 115.3 13301.8 16 210.0 165.3 27335.1 17 0.0 -44.7 1995.1 18 0.0 -44.7 1995.1 19 0.0 -44.7 1995.1 20 20.0 -24.7 608.4 21 0.0 -44.7 1995.1 22 0.0 -44.7 1995.1 23 0.0 -44.7 1995.1 24 0.0 -44.7 1995.1 25 30.0 -14.7 215.1 26 530.0 485.3 2355-48.4 27 0.0 4.7 1995.1 28 0.0 4.7 1995.1 29 0.0 -44.7 1995.1 30 0.0 -44.7 1995.1 31 0.0 0.0 0.0 32 0.0 0.0 0.0 33 0.0 0.0 0.0 34 0.0 0.0 0.0 35 0.0 0.0 0.0 36 0.0 0.0 0.0 37 0.0 0.0 0.0 38 0.0 0.0 0.0 39 0.0 0.0 0.0 40 0.0 0.0 0.0 41 0.0 0.0 0.0 42 0.0 0.0 0.0 43 0.0 0.0 0.0 44 0.0 0.0 0.0 45 0.0 0.0 0.0 46 0.0 0.0 0.0 47 0.0 0.0 0.0 48 o.o 0.0 0.0 49 0.0 0.0 0.0 50 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 No. of S~mpkls (:,;): 30 COUNT TIME: 0.5 MINUTES ean (N)

Sum(n) +,....('--:,;'-)....-~~

I 44.Gt Slanda Deviation (Sd) = SQRT [(n-N)' + (:r: -1 )] 106.18 2 Std viations: 212.36 Degree f Freedom(df)."' (x) - 1 Data listed on Table B-1 (df)= I 1.699 1 Area's A erage Level (Aµ)= (N) + (df) x [($d)/SQRT(x)] {Aµ)= GUIO LINEVALUE: Accepta le Level: i TABLE B-1 DPM 1100cm* DPM 1100cm' DPM /100cm* Factqrs for Comparislon of Survey Data with Guidelines (df) : 95°k 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 Forvalu1 s of Degrees of Freedom not listed:

lnblrpola e between the listed values. (df) high, value(Z) 40 is(B} 1.684 (df) low ~alue(V) 29 ls(A} 1.699 Desired Value(df) (X} 29 is calculated as follow: EXP[{ {Lr)(BH,.n{A)) + (Z-Y),....l ~<X_-Y~)_+_L~n(~A..,.,,11.------,----, 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% 0.0 0.0 0.0 0.0 0.0 o.o The (df} ~alue for (X!_ I 29 I 1.699 95% I PERFORMED BY: ~:It t-1.: & r&<L DATE: 6,/26/ff 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 REVIE~D BY: DATE: o.o 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 PAGES 1_0F _1_PAGES o.o 0.0 0.0 0.0 0.0 0.0 TOTAL 1340 326946.7 Sumfn) Sum(n-N)1 A:\\T2WLOCMB.'M32

29 0 -28 o-270-260-250-240-230-210-200-190-60 50 40 I I I (289N, 54W) :) !:l "'+ C. (244N, 54W) 0 C. (198N, 54W) b 15 SCALE IN M E T E R S NOTES: URANIUM (pCi/g U). CIMARRON GAMMA SPEC SOIL COUNTER SITE SOJL BACKGROUND OF APPROX. 4.0 pCi/g U, NOT SUBTRACTED. 30 I 20 10 ) I (289N, 14W) LEGEND: 0 PLUTONIUM BUILDING 6 + URANIUM, 1 - 30 pCi/g U 45+ URANIUM, > 30 pCi/g U R + HfT ROCK- ~JO SAMPLE 0 iO I I + ~o , 7 ' '+ 20 30 I I (289N, 21 E) + 7 7-t0 5-t J 7-t 0 t (236N, 21 E) + 40 I CIMARRON CORPORATION CIMARRON FACILITY PHASE II - SUB-AREA I AFFECTED AREA - PU PLANT YARD SOIL SAMPLE RESULTS - DEPTH SOIL SAMPLE ALIQUOT: 0-6" 0 LIGHT POLE PLUTONIUM YARD t--...--------------------------1 DRWN. ORWN BY: Cl<'D BY; >.PP'{) BY: CATE BY J E DATE 4-19-99 I SCALE: AS SHOWN REV. DESCRIPTION 0 DRAWING ISSUED. [ JOB NO. JE WR I JL 6/21 /99 DRAWJNG NO. 99POSIPUSS-1 ... \\SUBAREAI\\PU-YARD-DEPTH\\ 99POSIPUSS-Oepth - 290 ._ 280 ,_ 270 '- 260 ~ 250 '- 240 '- 2:SO ~220 '- 210 --- 200 J

60 I 50 I 40 I 30 20 I I 10 0 10 20 30 I I I I I 290-1------------------------------------4---, (289N, 54W}° (289N, 14W) {289N, 21 E) 0 + + g-t0 5, LJ 280-2 70-26 0-C. "'. -+ 25 0-(244N, 54W) b 24 0-230- {._ l 210-I ; I 200-

10+

I ( 198N, 54W) t) I l f + PLUTONIUM BUILDING I ',/ I Q ,4 +!+IC 9 11 8-l 11 + f,+ P. 013+ (236N, 21E) ':t 40 I .... 290 ,__ 260 ~ 270 ,__ 260 >-- 250 -240 >-- 230 ,-.220 ._ 210 .,_ 200 190-l / I ~ 1-A.l txr _ __.___.......~'--4-L..:........+............. LJ...+-~.....:....*....;..*.J........;~~......w.......,.~*~1 ~ ' *-1.'~

LJ 11--_j-190

~~~~::ic!~ t j I SUB-AREA ! 15 0 15 r SCALE IN M E T E R S / lh,~ NOTES: URANIUM (pCi/g U). CIMARRON GAMMA SPEC SOIL COUNTER SITE SOIL BACKGROUND OF APPROX. 4.0 pCi/g U, NOT SUBTRACTED. LEGEND: t' + URANIUM, 1 - 30 pCi/g U 45+ URANIUM. > 30 pCi/g U CIMARRON CORPORATION CIMARRON FACILITY R+ HIT ROCK-NO SAMPLE 0 UGHT POLE PLUTONIUM YARD t::"-r----------------,__;;,.:....;...:..:.;;.:~.::......,....._--1 ORWN. REV. DESCRIPTTON DRWll BY: CK'D BY: IAF"'D BY: ~lt BY t-::-O--t;:-;DRA~w=1N-:-:-G-::ls=su-=E~D. ------------+---JE~-WR---l--+--Jl-!-6-/-21-/9_J9 JOB NO. PHASE II - SUB-AREA I AFFECTED AREA - PU PLANT YARD SOIL SAMPLE RESULTS - DEPTH SOIL SAMPLE ALIQUOT: 6" -1' JE DA1E 4-19-99 I SCALE: AS SHOWN OR,\\WING NO. 99pos1Puss-2 1 o* ... \\ SUBAREAI\\PU-YARD-0EPTH\\99POSIPUSS-Depth ,_ 180

60 I 50 I 40 I 30 20 I I 10 0 I I 10 I 20 I 30 I 40 I (289N, 21E) 290-;------------------------------------------+--------. (289N, 54W)U i; -:I; i'°:g:LJ (289N, 14W) i0 280-2 70-26 o- [_ + 25 o-(244N, 54W) b 24 o-230-C. 210-200-(198N, 54W) t) 190-15 I S C A L E I N METERS '+ PLUTONIUM BUILDING 10+ 6+ 7+-+~E, + if (.j Ci '-+

+

01 \\ (236N, 2IE) 0 '+ NOTES: URANIUM (pCi/g U). CIMARRON GAMMA SPEC SOIL COUNTER SITE SOIL BACKGROUND OF APPROX. 4.0 pCi/g U, NOT SUBTRACTED. LEGEND: E + URANIUM, 1 - 30 pCi/g U 45+ URANIUM, > 30 pCi/g U CIMARRON CORPORATION CIMARRON FACILITY R+ HIT ROCK-NO SAMPLE 0 LIGHT POLE : t-':':'--r----------------.,-P..:;,LU~T.;,;.ON.;,.;IU..;.M-iY,i.;;11-R.:.:;,D_....,_----I ORWN REV. OESCRJPTIOU D!MI fff: CK'O Erl: Jli>'D IU: DI.TE BY t-::-----t::-:::-.-::-:-:-::---:-::==--------------1---1----!-l-------'----lJOB NO. 0 DRAWING ISSUED. JE WR JL 6/21/99 PHASE II - SUB-AREA I AFFECTED AREA - PU PLANT YARD SOIL SAMPLE RESULTS - DEPTH SOIL SAMPLE ALIQUOT: 1'-2' JE OATE 4-19-99 I SCALE: AS SHOWN DRAWING NO. I ROFY. 99POSIPUSS-3 ... \\SU8AREPJ\\PU-YARO-DE?TH\\99POSIPUSS-Depth ,__ 290 ~280 - 270 ..,._260 ...... 250 ~240 -230 ..... 220 -210 ,_ 200 j

60 I 50 I 40 I 30 I 20 I 10 I 0 I 10 I 20 I 30 I 40 I (289N, 14W) (289N, 2lE) 2904-----~----------------!~--------_.;.___. _ __;_-4--____,, (289N, 54W)8 0 t t 161{)12LJ 280-70-2 60-25 0-24 0-23 o-o- 210-200-190-t..

+

(244N, 54W) t) PLUTONIUM BUILDING c:. C, ~+ I I I

1c+

I I (198N, 54W) p I I l ,v ,...~ 1,}\\j I 15 0 15 I S C A L E I N METERS NOTES: URANIUM (pCi/g U). CIMARRON GAMMA SPEC SOIL COUNTER SITE SOIL BACKGROUND OF APPROX. 4.0 pCi/g U, NOT SUBTRACTED. SUB-AREA I LEGEND: , + URANIUM, 1 - 30 pCi/g U 45 + URANIUM, > 30 pCi/ g U R+ HIT ROCK-N~ SAMPLE 0 LIGHT POLE I 1-~ C ~+ f:+_ 0, :;+ (236N, 21 E) 6 9 9

8.

@l CIMARRON CORPORATION CIMARRON FACILITY PHASE II - SUB-AREA I AFFECTED AREA - PU PLANT YARD SOIL SAMPLE RESULTS - DEPTH t--r----------------,,..;P..:,LU;;;_;,T~ON.:.;..;:IU~M~Y~~R.:.:,D._ _ __,J ORWN. DfMli BY: CK'D Br: IN " 00 BY: ~IT BY REV. DESCRIPllON SOIL SAMPLE ALIQUOT: 2'-3' JE Qt.TI 4-19-99 I SO.LE: AS SHOWN 0 DRAWING ISSUED. JE WR JL 6/21/99 JOB NO. DRAWING NO. 99pos1Puss-4 1 Ro. ... \\ SUBAREAI\\ PU-YARD-DEPTH\\ 99POSIPUS5-Depth ...... 290 - 280 -270 -260 -250 -230 .___ 220 180

60 I 50 I 40 I 30 20 I I (289N, 14W) 10 0 10 20 30 I I I I I 290---1----------------------~~-------------.....----. (289N, 54W) :::> (289N, 21 E) D + t e""+0i0-t J 280-27 0-26 0-C.. L + 25 0-(244N, 54W) 0 24 0-230-C. 210-200- * ( 198N, 54W) b '\\l/ 10 + f i PLUTONIUM BUILDING R 10 +++s + 11 ~ & + 8+ 0 f+ (236N, 21 E) I! + f + + 40 I - 290 ,_ 280 ,_ 270 '- 260 -240 -230 190- \\ ,.,f,... 10 R C. 1 5 ,~! --0--------r-r--r-'1~--s U-Bi,~rrA_R__.;...... A-'I..... ; ------.c......* *,,--~I_,_ ,,.....,__,~;* *._...I.:,__I.......,1 '~-'--+:~...._,,',..,_D~ 'E:,.i._;,:__,__;::,...__._ }..!....:;

~....,_

- ---,h-: --t 190 Q

\\ K~., -1ao SCALE IN M E T E R S NOTES: URANIUM (pCi/g U). CIMARRON GAMMA SPEC SOIL COUNTER SITE SOIL BACKGROUND OF APPROX. 4.0 pCi/g U, NOT SUBTRACTED. REY. O[SCRIPTIOII 4~ ~ ~ P. LEGEND: 5 + URANIUM, 1 - 30 pCi/g U 45+ URANIUM, > JO pCi/g U R + HIT ROCK-NO SAMPLE 0 LIGHT POLE PLUTONIUM YI RD l)RVl,I BY: O<'D BY:,- >p'D BY: ~IT H CIMARRON CORPORATION CIMARRON FACILITY PHASE II - SUB-AREA I AFFECTED AREA - PU PLANT YARD SOIL SAMPLE RESULTS - DEPTH SOIL SAMPLE ALIQUOT: 3' -4' ~~- JE DAT[ 4-19-99 ( SCJ>li: AS SHOWN t--::--t:::-::::::-:::-:::-::::::--::::=---------- ---1---+---+-l--+.----1 JOB NO. 0 DRAWING ISSUED. JE WR JL 6/21/99 DRAWING NO. 99POSIPUSS-5 ... \\ SUBAREAI\\PU-YARD-DEPTH\\99POSIPUSS-Depth

04/14/99

CIMARRON FACILITY PHASE II -

SUB-AREA "I" PLUTONIUM PLANT YARD - AFFECTED - DEPTH RESULTS BACKGROUND MDA BACKGROUND NOT SUBTRACTED INSTRUMENTS: S/N IN LUDLUM MICRO 'R' METER - M/N 19 111299 µr/hr 9 2 REVIEWED BY: ~- a. I ~ DATE: Y ~ir-?9 LUDLUM 2220, I UNSHIELDED 3" X 1/2" Nal DETECTOR 97264 CPM 6020 NIA CIMMARON SOIL ITotal U 4 10 COUNTER 4" X 4" X 16" Nal DETECTOR pCi/G Th (Nat) 1.5 1 3" MICRO MICRO pCi/g LN GRID LOCATION DETECT R' R' 0- 6" 6"- 1' 1'- 2' 2' 3' 3' 4' C.P.M. SURF 1 METER Total-U Th (Nat) Total-U Th (Nat) Total-U Th (Nat) Total-U Th (Nat) Total-U Th (Nat) 1 40 w - 202 N 5376 6 5 8 1 10 1 6 1 10 1 8 2 2 40 w - 228 N 4608 6 6 11 1 6 1 8 1 5 1 6 1 3 40 w - 252 N 5836 7 7 8 1 5 1 7 1 7 1 4 1 4 40 w - 278 N 6958 7 7 9 1 5 1 8 1 7 2 3 1 5 10 w - 268 N 7314 8 7 7 1 6 1 7 2 9 1 10 1 6 4 E 220 N 8086 9 9 18 1 14 1 7 1 9 1 10 1 7 5 E - 219 _N__ -- J}~94_. 1t 9 14 2 9 1 16 1 4 1 4 2 8 5 E 221 N 9102 9 8 18 2 9 1 12 1 9 1 ROCK ROCK 9 6 E - 220 N 7192 8 8 11 1 10 2 8 2 7 2 9 1 10 10 E 191 .N 5788 7 6 13 1 8 1 6 2 6 2 10 2 11 10 E 195 N 7408 8 9 8 1 14 1 8 2 9 2 12 2 12 10 E 200 N 8314 9 9 8 2 7 2 12 2 7 2 10 2 13 10 E 202 N 8812 9 9 7 2 10 1 10 1 9 2 12 1 14 10 E - 205 N 8258 10 9 10 1 7 2 17 2 10 1 12 2 15 10 E 210 N 7930 10 9 17 2 17 1 9 1 8 2 12 1 16 10 E 215 N 8168 9 9 8 2 7 2 11 2 8 1 10 1 17 10 E 233 N 9434 9 9 9 1 8 2 8 2 8 1 11 1 18 10 E 252 N 9132 9 8 17 1 11 2 10 1 9 2 8 1 19 10 E - 278 N 8396 8 8 12 1 12 2 7 2 7 1 8 2 20 10 E 289 N 6138 8 7 10 1 6 2 7 2 7 2 11 2 21 14 E 200 N 8000 9 8 20 2 14 1 10 2 12 1 13 1 22 15 E - 191 N 6048 7 7 9 1 13 1 10 2 9 1 7 2 23 15 E 195 N 7352 8 9 7 2 7 2 10 2 17 1 14 2 24 15 E 199 N 7338 8 8 8 1 12 1 9 1 7 1 5 1 25 15 E 200 N 7590 10 10 6 2 8 1 7 1 5 1 5 1 26 15 E 201 N 7312 9 8 13 1 10 1 11 2 9 2 8 2 27 15 E - 205 N 7184 9 8 11 1 10 2 14 2 7 2 10 2 C:\\OFFICE\\AREA\\I\\PUPYDEP\\IDATAPUY.WB2

04/14/99

CIMARRON FACILITY PHASE II -

SUB-AREA "I" PLUTONIUM PLANT YARD - AFFECTED - DEPTH RESULTS BACKGROUND MDA BACKGROUND NOT SUBTRACTED INSTRUMENTS: S/N IN LUDLUM MICRO 'R' METER - M/N 19 111299 µr/hr 9 2 REVIEWED BY: 1Jru_~ DATE: Y-1 'f-rr LUO.UM 2220, I UNSHIELDED 3" X 1 /2" Nal DETECTOR 97264 CPM 6020 NIA CIMMARON SOIL Total U 4 10 COUNTER 4" X 4" X 16" Nal DETECTOR pCi/G Th (Nat) 1.5 1 3" MICRO MICRO pCi/g LN GRID LOCATION DETECT R' R' 0- 6" 6"- 1' 1'- 2' 2' 3' 3' 4' C.P.M. SURF 1 METER Total-U Th (Nat) Total-U Th (Nat) Total-U Th (Nat) Total-U Th (Nat) Total-u Th (Nat) 28 15 E 210 N 7718 9 9 8 2 13 2 10 1 12 2 10 1 29 15 E 215 N 7770 9 9 12 1 16 1 15 2 12 2 13 1 30 15 E 289 N 5916 7 8 7 2 11 2 7 2 8 2 7 2 31 16 E 200 N 7176 9 9 22 1 15 1 11 1 10 1 10 1 32 19 E 210 N 7036 8 8 4 2 6 1 1 2 10 2 4 2 33 20 E 191 N 5686 7 7 8 1 8 1 7 2 9 2 ROCK ROCK ---.... 9--- -. -- 34 20 E - --falr. r-r 7266 - -a* 8 2 17 1 6 2 ROCK ROCK ROCK. ROCK 35 20 E 200 N 7264 9 9 9 2 8 2 10 2 9 2 ROCK ROCK 36 20 E 205 N 7386 9 10 5 2 7 2 12 1 6 1 ROCK ROCK 37 20 E - 209 N 7528 9 8 9 1 8 1 5 1 6 1 12 1 38 20 E 210 N 7930 10 9 9 1 10 1 8 1 4 1 14 2 39 20 E 211 N 6866 8 8 6 1 5 1 6 1 16 1 13 1 40 20 E - 215 N 7608 8 8 21 2 12 2 10 2 14 1 ROCK ROCK 41 20 E 289 N 5404 7 7 7 1 9 1 7 2 10 1 6 2 42 21 E 210 N 7594 8 8 5 1 3 2 3 2 5 1 6 1 43 24 E 191 N 6306 7 7 g 1 7 1 9 2 8 2 8 2 44 24 E 195 N 6346 7 7 7 1 6 1 8 2 10 2 7 2 45 24 E 200 N 6382 8 7 12 2 11 2 9 2 14 2 6 2 46 24 E - 205 N 7038 9 9 10 1 8 1 5 1 4 1 6 1 47 24 E - 210 N 8424 10 12 4 1 6 1 4 1 2 1 7 1 48 24 E - 215 N 5032 8 8 10 1 12 2 11 2 25 1 13 2 49 24 E - 220 N 5752 7 8 8 2 12 1 8 2 13 2 13 2 50 24 E 225 N 6678 8 7 8 1 9 1 9 1 10 2 11 2 C:\\OFFICE\\AREA \\I\\PUPYDEP\\IDATAPUY. WB2 2

04/14/99

CIMARRON FACILITY PHASE II -

SUB-AREA "I" PLUTONIUM PLANT YARD - AFFECTED - DEPTH RESULTS BACKGROUND MDA BACKGROUND NOT SUBTRACTED INSTRUMENTS: S/N IN LUDLUM MICRO 'R' METER-M/N 19 111299 µr/hr 9 2 REVIEWED BY: V.ai. ~ DATE: '-/ -1r -:;7 LUDLUM 2220, UNSHIELDED 3" X 1/2" Nal DETECTOR 97264 CPM 6020 N/A CIMMARON ~ulL Total U 4 10 COUNTER 4" X 4" X 16" Nal DETECTOR pCi/G Th (Nat) 1.5 1 3" MICRO MICRO pCl/g LN GRID LOCATION DETECT R' R' 0- 6" 6"- 1' 1'- 2' 2' 3' 3' 4' C.P.M. SURF 1 METER Total-U Th (Nat) Total-U Th (Nat) Total-U Th (Nat) Total-U Th (Nat) Total-U Th (Nat) 51 24 E - 230 N 6484 8 7 8 1 8 1 9 2 8 2 6 2 52 24 E 235 N 6182 7 8 8 1 13 1 11 2 15 2 6 2 53 24 E - 240 N 6304 7 9 11 2 6 2 7 2 16 2 8 1 54 24 E 245 N 6350 8 8 7 1 6 1 5 1 24 2 13 2 55 24 E 250 N 6420 8 7 7 1 10 1 10 2 11 2 10 2 i;~ ?.d F ?i;i; _N. -- __ 5Q5fi. 8 7. - --*- _7 _ _. _l __ 7 1 10 1 11 1 11 ? 57 24 E 260 N 7080 9 8 6 1 9 2 7 2 10 2 9 2 58 24 E 265 N 6822 9 8 9 1 7 1 9 2 13 1 11 2 59 24 E 270 N 7008 8 9 12 2 8 2 9 2 13 1 12 2 60 24 E 275 N 6762 9 7 6 2 13 1 8 1 12 1 14 2 61 24 E 280 N 6562 9 8 6 1 11 2 10 1 4 2 10 1 62 24 E - 285 N 5484 7 8 7 1 8 1 10 2 11 2 7 1 63 24 E 289 N 5528 7 7 5 1 5 1 10 1 12 2 10 1 C:\\OFFICE\\AREA\\I\\PUPYDEP\\IDATAPUY.WB2 3

06/09/99 ~ .J a.. ~ ~ LL p ffi ca ~

, z PHASE II SUB-EA II I1' PLUTONIUM PLANT YARD CIMARRON SOIL OUNTER TOTAL URANIUM SOIL SAMPLE RESULTS SITE BACKGROU D OF 4 pCi/g NOT SUBTRACTED MARCH, 1999 URANIU SAMPLE DATA FREQUE CY DISTRIBUTION 100 80 60 40 20 0

2, 4 6 8. 1 0 12 14 16 18 20 22 pCi/g i NUMBER OF S MPLES AVERAGE SA PLE MINIMUM SAM LE MAXIMUM SAMPLE STANDARD DE IATION 308 9.3 1.0 25.0 3.5 C:\\OFFICE\\i\\REA\\I\\PUPYDEP\\IPPYGPTH.WB2

04/14/99 PHASE II SUB-AREA II I"I PLUTONIUM PLANT YARD I CIMARRON SOIL COUNTER! TOTAL THORIUM SOIL SAMPLE RESULTS SITE BACKGROUND OF 1.5 pCi/g NOT SUBTRACTED MARCH, 1999 THORIUM SAMPLE RES UL TS FREQUE CY DISTRIBUTION 200 Cl) ILU LJ 150 0.. ~ ~ (/) I 100

I 50 0 0 1 2 3 pCl/g NUMBER OF SAMPLES 308 AVERAGE SAMPLE 1.5 MINIMUM SAMPLE 1.0 MAXIMUM SAMPLE 2.0 STANDARD DEVIATIO 0.5 C:\\OFFICE\\AREA\\I\\PUPYDEP\\IPPYGPTH.WB2

06/09/99 CJ) PHASE II SUB-AREA "I" PLUTO?fIUM PLANT YARD MICRO-R METER READINGS AT SUR~ACE - AFFECTED - DEPTH SITE BACKGROUND OF 9 1,1R/hr NOT SUBTRACTED LUDLUM MODEL 19 S/N 111299 RESULTS IN µR/hr MARCHI 1999 11R READING SURFACE FREQUENCY DI TRIBUTION 25 ~ 20 0 <( w 15 0:: LL 0 10 0:: w ca 5 ~

J z

0 NUMBER OF READINGS 63 AVERAGE READING 8 MINIMUM READING 6 MAXIMUM READING 111 STANDARD DEVIATION 1.0 C:\\OFFICE\\AREA\\I\\PUPYDEP\\IPPYGPTH.WB2

06/09/99 PHASE II SUB-AREA 11 !" PJii,UTONIUM PLANT YARD MICRO-R METER READINGS Al! ONE METER ABOVE SURFACE - SITE BACKGROUND OF 9 µR/h~ NOT SUBTRACTED LUDLUM MODEL 19 5/N 1112991 AFFECTED* DEPTH RESULTS IN µR/hr MARCH, 1999 µR READINGS @ 1 METER ABOVE SURFACE FREQUEN Y DISTRIBUTION c.n 25 (9 2 20 0 ~ ~ 15 LL 0 10 0:: w ca 5 ~

)

z 0 5 6 7 8 9 10 µR/hr NUMBER OF READINGS 63 AVERAGE READING 8 MINIMUM READING 5 MAXIMUM READING 12 STANDARD DEVIATION 1 C:\\OFFICE\\AREA\\I\\PUPYDEP\\lPPYGPTH.W

04/14/99 PHASE It SUB-AREA "I'~ PLUTONIUM PLANT YARD 3" Nal DETECTOR j AFFECTED - DEPTH GROSS GAMMA READINGSJ IN CPM LUDLUM MODEL 2220 SIN '7264 (UNSHIELDED) BACKGROUND AVERAGE: 6020 CPM MARCH, 1999 3" Nal DETE FREQUENC 25 (f) <.9 20 z 0 ~ 15 a:: LL O 10 a:: UJ co ~ 5

> z TOR READINGS DISTRIBUTION 0 5000 6000 i T 00 : 8000 9000 9500 CPM NUMBER OF READINGS AVERAGE READING MINIMUM READING MAXIMUM READING STANDARD DEVIATION C:\\OFFICE\\AREA\\I\\PUPYDEP\\IPPYGPTH.WB2

04/06/99 ] CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE V~LUE AT 95% CONFIDENCE AREA "I" PLUTONIUM PLANT YARD i(AFFECTED} DEPTH n = pCi/g TOTAL U Number n (n-N) (n*N)' No.~ Samples (x) : I 308 1 8.0 -1.3 1.7 2 11.0 1.7 2.9 COLINT TIME: 5 MINUTES 3 8.0 -1.3 1.7 4 9.0 -0.3 0.1 S.am1 le Mean (N) = Sum(n) + (x) 5 7.0 -2.3 5.3 SamJ le Mean (N): 1 s.30 I 6 18.0 8.7 75.7 7 14.0 4.7 22.1 8 18.0 8.7 75.7 9 11.0 1.7 2.9 10 13.0 3.7 13.7 Stanc ard Deviation (Sd) = SQRT [(n*N)' + (X -1)] 11 8.0 -1.3 1.7 12 8.0 -1.3 1.7 13 7.0 -2.3 5.3 14 10.0 0.7 0.5 Star dard Deviation: ~ 2 ! td Deviations: 6.97 15 17.0 7.7 59.3 Degn e of FnHtdom(df}.= (x) - 1 Data listed on Table B-1 16 8.0 -1.3 1.7 (df} = ! 1.652 I 17 9.0 -0.J 0.1 18 17.0 7.7 59.3 Area' ~ Average Level (Aµ)= (N) + (df} x [(Sd)/SQRT[x)) 19 12.0 2.7 7.3 20 10.0 0.7 0.5 21 20.0 10.7 114.5 22 9.0 -0.3 0.1 (Aµ)= ~ pCi/gU TOTAL U GIJIDEUNE VALUE: pCi/gU TOTAL U Acce1 )table Level: pCi/gU TOTAL U 23 7.0 -2.3 5.3 24 8.0 -1.3 1.7 25 6.0 -3.3 10.9 TABLE B

1 26 13.0 3.7 13.7 F, ctors for Comparislon of Survey Data wl1h Guldellnes 27 11.0 1.7 2.9

{elf) 95% 97.5% (df} 95% 97.So/o 28 8.0 -1.3 1.7 6.314 12.706 19 1.729 2.093 29 12.0 2.7 7.3 2.92 4.303 20 1.725 2.086 30 7.0 -2.3 5.3 2.353 3.182 21 1.721 2.08 31 22.0 12.7 161.3 2.132 2.776 22 1.717 2.074 32 4.0 -5.3 28.1 2.015 2.571 23 1.714 2.069 33 8.0 -1.3 1.7 I 1.943 2.447 24 1.711 2.064 34 9.0 -0.3 0.1 1.895 2.365 25 1.708 2.06 35 9.0 -0.3 0.1 3 1.86 2.306 26 1.706 2.056 36 5.0 -4.3 18.5 ~ 1.833 2.262 27 1.703 2.052 37 9.0 -0.3 0.1 0 1.812 2.228 28 1.701 2.048 38 9.0 -0.3 0.1 11 1.796 2.201 29 1.699 2.045 39 6.0 -3.3 10.9 12 1.782 2.179 30 1.697 2.042 40 21.0 11.7 136.9 . 3 1.771 2.16 40 1.684 2.021 41 7.0 -2.3 5.3 4 1.761 2.145 60 1.671 2 42 5.0 -4.3 18.5

5 1.753 2.131 120 1.658 1.98 43 9.0

-0.3 0.1 . 6 1.746 2.12 400 1.649 1.966 44 7.0 -2.3 5.3 '7 1.74 2.11 Infinite 1.645 1.96 45 12.0 2.7 7.3 '8 1.734 2.101 46 10.0 0.7 0.5 47 4.0 -5.3

28.1 48 10.0 0.7 0.5 For v~lues of Degrees of Freedom not llsted:

49 8.0 -1.3 1.7 Interpolate between the~Us_ted_v_al~u_es_. ---r----r----. 50 8.0 -1.3 1.7 (df) t,lgh value[Z) 400 Is (B} 1.649 953/4 463.0 515.7 (df) 11)W value(Y) 120 Is (A) 1.658 953/4 444.0 380.0 Desired value{df) {X) 307 is calculated as follow: 410.0 404.4 504.0 1004.2 EXP[( {Ln{B)*Ln(A}) + (Z-Y)) {X-Y) + Ln(A)] The (~f) value for (X) I 307 I 1.652 j 95% 453.0 451.7 84.0 41.5 0.0 0.0 PERFORMED BY: ~ /4,;{)o DATE: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 REVIE EOBY: 1J,~ -~ DATE: 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 total 2864 3726.5 Sum(n) Sum(n-N)" PAGE1 OF4 C:\\DFFICE\\AREA\\IIIPUPYCMU.WB2

04/06/99 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUl tLINE VALUE AT 95% CONFIDENCE AREA "I" PLUTONIUM PLANTIYARD (AFFECTED) DEPTH n = pCi/g TOTAL U i n = pCi/g TOTAL U Number n (n-N) (n-N)2 51 8.0 -1.30 1.69 Number n (n-N) (n-NF 101 10.0 0.70 0.49 52 8.0 -1.30 1.69 102 5.0 -4.30 18.48 53 11.0 1.70 2.89 103 12.0 2.70 7.30 54 7.0 -2.30 5.28 104 9.0 -0.30 0.09 55 7.0 -2.30 5.28 105 3.0 -6.30 39.67 56 7.0 -2.30 5.28 106 7.0 -2.30 5.28 57 6.0 -3.30 10.88 107 6.0 -3.30 10.88 58 9.0 -0.30 0.09 108 11.0 1.70 2.89 59 12.0 2.70 7.30 109 8.0 -1.30 1.69 60 6.0 -3.30 10.88 110 6.0 -3.30 10.88 61 6.0 -3.30 10.88 111 12.0 2.70 7.30 62 7.0 -2.30 5.28 112 12.0 2.70 7.30 63 5.0 -4.30 18.48 113 9.0 -0.30 0.09 64 10.0 0.70 0.49 114 8.0 -1.30 1.69 65 6.0 -3.30 10.88 115 13.0 3.70 13.70 66 5.0 -4.30 18.48 116 6.0 -3.30 10.88 67 5.0 -4.30 18.48 117 6.0 -3.30 10.88 68 6.0 -3.30 10.88 118 10.0 0.70 0.49 69 14.0 4.70 22.10 119 7.0 -2.30 5.28 70 9.0 -0.30 0.09 120 9.0 -0.30 0.09 71 9.0 -0.30 0.09 121 7.0 -2.30 5.28 72 10.0 0.70 0.49 122 8.0 -1.30 1.69 73 8.0 -1.30 1.69 123 13.0 3.70 13.70 74 14.0 4.70 22.10 124 11.0 1.70 2.89 75 7.0 -2.30 5.28 76 10.0 0.70 0.49 77 7.0 -2.30 5.28 125 8.0 -1.30 1.69 126 5.0 -4.30 18.48 127 6.0 -3.30 10.88 78 17.0 7.70 59.31 128 8.0 -1.30 1.69 79 7.0 -2.30 5.28 129 7.0 -2.30 5.28 80 8.0 -1.30 1.69 130 8.0 -1.30 1.69 81 11.0 1.70 2.89 131 7.0 -2.30 5.28 82 12.0 2.70 7.30 132 7.0 -2.30 5.28 83 6.0 -3.30 10.88 133 16.0 6.70 44.91 84 14.0 4.70 22.10 134 12.0 2.70 7.30 85 13.0 3.70 13.70 135 8.0 -1.30 1.69 86 7.0 -2.30 5.28 136 6.0 -3.30 10.88 87 12.0 2.70 7.30 137 8.0 -1.30 1.69 88 8.0 -1.30 1.69 138 12.0 2.70 7.30 89 10.0 0.70 0.49 139 10.0 0.70 0.49 90 10.0 0.70 0.49 140 17.0 7.70 59.31 91 13.0 3.70 13.70 141 9.0 -0.30 0.09 92 16.0 6.70 44.91 142 11.0 1.70 2.89 93 11.0 1.70 2.89 143 8.0 -1.30 1.69 94 15.0 5.70 32.50 144 10.0 0.70 0.49 95 6.0 -3.30 10.88 145 7.0 -2.30 5.28 96 8.0 -1.30 1.69 146 7.0 -2.30 5.28 97 17.0 7.70 59.31 147 10.0 0.70 0.49 98 8.0 -1.30 1.69 148 10.0 0.70 0.49 99 7.0 -2.30 5.28 149 10.0 0.70 0.49 100 8.0 -1.30 1.69 150 9.0 -0.30 0.09 463.0 515.7 444.0 380.0 Sum(n} Sum(n-N)2 Sum(n) Sum(n-N)2 PAGE20F4 C:\\OFFICE\\AREA\\I\\IPUPYCMU.WB2

04/06/99 CIMARRON CORPORATION - Cl ARRON FACILITY TRUE MEAN ACTIVITY VS. GUID LINE VALUE AT 95% CONFIDENCE AREA 11 I 11 PLUTONIUM PLANT YARD {AFFECTED) DEPTH n = pCi/g TOTAL U n = pCi/g TOTAL U Number n (n-N} (n-N)2 Number n (n-N) (n-N)2 151 7,0 -2.30 5.28 201 7.0 -2.30 5.28 152 11.0 1.70 2.89 202 9.0 -0.30 0.09 153 14.0 4.70 22.10 203 10.0 0.70 0.49 154 10.0 0.70 0.49 204 8.0 -1.30 1.69 155 15.0 5.70 32.50 205 8.0 -1.30 1.69 156 7.0 -2.30 5.28 206 8.0 -1.30 1.69 157 11.0 1.70 2.89 207 9.0 -0.30 0.09 158 1.0 -8.30 68.87 208 7.0 -2.30 5.28 159 7.0 -2.30 5.28 209 7.0 -2.30 5.28 160 6.0 -3.30 10.88 210 12.0 2.70 7.30 161 10.0 0.70 0.49 211 9.0 -0.30 0.09 162 12.0 2.70 7.30 212 17.0 7.70 59.31 163 5.0 -4.30 18.48 213 7.0 -2.30 5.28 164 8.0 -1.30 1.69 214 5.0 -4.30 18.48 165 6.0 -3.30 10.88 215 9.0 -0.30 0.09 166 10.0 0.70 0.49 216 7.0 -2.30 5.28 167 7.0 -2.30 5.28 217 12.0 2.70 7.30 168 3.0 -6.30 39.67 218 12.0 2.70 7.30 169 9,0 -0.30 0.09 219 8.0 -1.30 1.69 170 8.0 -1.30 1.69 220 10.0 0.70 0.49 171 9.0 -0.30 0.09 221 10.0 0.70 0.49 172 5.0 -4.30 18.48 222 9.0 -0.30 0.09 173 4.0 -5.30 28.08 223 9.0 -0.30 0.09 174 11.0 1.70 2.89 224 6.0 -3.30 10.88 175 8.0 -1.30 1.69 225 6.0 -3.30 10.88 176 9.0 -0.30 0.09 226 4.0 -5.30 28.08 177 9.0 -0.30 0.09 227 16.0 6.70 44.91 178 11.0 1.70 2.89 228 14.0 4.70 22.10 179 7.0 -2.30 5.28 229 10.0 0.70 0.49 180 5.0 -4.30 18.48 230 5.0 -4.30 18.48 181 10.0 0.70 0.49 231 8.0 -1.30 1.69 182 10.0 0.70 0.49 232 10.0 0.70 0.49 183 7.0 -2.30 5.28 233 14.0 4.70 22.10 184 9.0 -0.30 0.09 234 4.0 -5.30 28.08 185 9.0 -0.30 0.09 235 2.0 -7.30 53.27 186 8.0 -1.30 1.69 236 25.0 15.70 246.53 187 10.0 0.70 0.49 237 13.0 3.70 13.70 188 10.0 0.70 0.49 238 10.0 0.70 0.49 189 10.0 0.70 0.49 239 8.0 -1.30 1.69 190 10.0 0.70 0.49 240 15.0 5.70 32.50 191 5.0 -4.30 18.48 241 16.0 6.70 44.91 192 7.0 -2.30 5.28 242 24.0 14.70 216.13 193 7.0 -2.30 5.28 243 11.0 1.70 2.89 194 9.0 -0.30 0.09 244 11.0 1.70 2.89 195 9.0 -0.30 0.09 245 10.0 0.70 0.49 196 4.0 -5.30 28.08 246 13.0 3.70 13.70 197 9.0 -0.30 0.09 247 13.0 3.70 13.70 198 7.0 -2.30 5.28 248 12.0 2.70 7.30 199 6.0 -3.30 10.88 249 4.0 -5.30 28.08 200 9.0 -0.30 0.09 250 11.0 1.70 2.89 410.0 404.4 504.0 1004.2 Sum(n) Sum(n-N)2 Sum(n) Sum(n-N)2 PAGE 3 OF 4 C:\\OFFICE\\AREA\\I\\IPUPYCMU.WB2

04/06/99 CIMARRON CORPORATION - Cl~ARRON FACILITY TRUE MEAN ACTIVITY VS. GUID~LINE VALUE AT 95% CONFIDENCE AREA "I" PLUTONIUM PLANTIYARD (AFFECTED) DEPTH n = pCi/g TOTAL U I n = pCi/g TOTAL U Number n (n-N) (n-N)2 Number n (n-N) (n-N}2 251 12.0 2.70 7.30 301 11.0 1.70 2.89 252 8.0 -1.30 1.69 302 9.0 -0.30 0.09 253 6.0 -3.30 10.88 303 11.0 1.70 2.89 254 4.0 -5.30 28.08 304 12.0 2.70 7.30 255 3.0 -6.30 39.67 305 14.0 4.70 22.10 256 10.0 0.70 0.49 306 10.0 0.70 0.49 257 10.0 0.70 0.49 307 7.0 -2.30 5.28 258 4.0 -5.30 28.08 308 10.0 0.70 0.49 259 9.0 -0.30 0.09 309 0.0 0.00 0.00 260 10.0 0.70 0.49 310 0.0 0.00 0.00 261 12.0 2.70 7.30 311 0.0 0.00 0.00 262 10.0 0.70 0.49 312 0.0 0.00 0.00 263 12.0 2.70 7.30 313 0.0 0.00 0.00 264 12.0 2.70 7.30 314 0.0 0.00 0.00 265 12.0 2.70 7.30 315 0.0 0.00 0.00 266 10.0 0.70 0.49 316 0.0 0.00 0.00 267 11.0 1.70 2.89 317 0.0 0.00 0.00 268 8.0 -1.30 1.69 318 0.0 0.00 0.00 269 8.0 -1.30 1.69 319 0.0 0.00 0.00 270 11.0 1.70 2.89 320 0.0 0.00 0.00 271 13.0 3.70 13.70 321 0.0 0.00 0.00 272 7.0 -2.30 5.28 322 0.0 0.00 0.00 273 14.0 4.70 22.10 323 0.0 0.00 0.00 274 5.0 -4.30 18.48 324 0.0 0.00 0.00 275 5.0 -4.30 18.48 325 0.0 0.00 0.00 276 B.O -1.30 1.69 326 0.0 0.00 0.00 277 10.0 0.70 0.49 327 0.0 0.00 0.00 278 10.0 0.70 0.49 328 0.0 0.00 0.00 279 13.0 3.70 13.70 329 0.0 0.00 0.00 280 7.0 -2.30 5.28 330 0.0 0.00 0.00 281 10.0 0.70 0.49 331 0.0 0.00 0.00 282 4.0 -5.30 28.08 332 0.0 0.00 0.00 283 12.0 2.70 7.30 333 0.0 0.00 0.00 284 14.0 4.70 22.10 334 0.0 0.00 0.00 285 13.0 3.70 13.70 335 0.0 0.00 0.00 286 6.0 -3.30 10.88 336 0.0 0.00 0.00 287 6.0 -3.30 10.88 337 0.0 0.00 0.00 288 8.0 -1.30 1.69 338 0.0 0.00 0.00 289 7.0 -2.30 5.28 339 0.0 0.00 0.00 290 6.0 -3.30 10.88 340 0.0 0.00 0.00 291 6.0 -3.30 10.88 341 0.0 0.00 0.00 292 7.0 -2.30 5.28 342 0.0 0.00 0.00 293 13.0 3.70 13.70 343 0.0 0.00 0.00 294 13.0 3.70 13.70 344 0.0 0.00 0.00 295 11.0 1.70 2.89 345 0.0 0.00 0.00 296 6.0 -3.30 10.88 346 0.0 0.00 0.00 297 6.0 -3.30 10.88 347 0.0 0.00 0.00 298 8.0 -1.30 1.69 348 0.0 0.00 0.00 299 13.0 3.70 13.70 349 0.0 0.00 0.00 300 10.0 0.70 0.49 350 0.0 0.00 0.00 453.0 451.7 84.0 41.5 Sum(n) Sum(n*Nf Sum(n) Sum(n*N)2 PAGE40F 4 C:\\OFFICE\\AREA \\I\\IPUPYCM U.WB2

04/05/99 CIMARRON CORPORATION - CIMA~RON FACILITY TRUE MEAN ACTIVITY VS. GUIDELl~E VALUE AT 95% CONFIDENCE AREA "I" PLUTONIUM PLANTY ARD (AFFECTED)DEPTH n = pCi/e: Th (NAT) Number n (n-N) (n-N)1 ~o. of Samples (x): I 308 I 1 1.0 -0.46 0.2) 2 1.0 -0.46 0.21 ~OUNT TIME: 5 MINUTES 3 1.0 -0.46 0.21 4 1.0 -0.46 0.21 5 1.0 -0.46 0.21 $ample Mean (N) = Sum(n) + (x) $ample Mean (N) : I 1.46 I 6 1.0 -0.46 0.21 7 2.0 0.54 0.29 8 2.0 0.54 0.29 9 1.0 -0.46 0.21 10 1.0 -0.46 0.21 Standard Deviation (Sd)"" SQRT ((n-N) 2 -;- (x - 1)) 11 1.0 -0.46 0.21 12 2.0 0.54 0.29 13 2.0 0.54 0.29 14 1.0 -0.46 0.21 Sta m ard DeYiation: ~ ~ Std Deviations: 0 15 2.0 0.54 0.29 Degree of Freedom(df).= (x) - 1 Data listed on Table B-1 16 2.0 0.54 0.29 (df) = I 1.652 I 17 1.0 -0.46 0.21 18 1.0 -0.46 0.21 /\\rea's Average Len! (Ap.) = (N) + (df) x [(Sd)/sqrt(x)] 19 1.0 -0.46 0.21 20 1.0 -0.46 0.21 21 2.0 0.54 0.29 22 1.0 -0.46 0.21 (Aµ)= rn pCugTh (NAT) GUIDELINE VALUE: pCi/gTh (NAT) l\\cceptable Level: pCi/gTb (NAT) 23 2.0 0.54 0.29 (25°/4 OF GUIDELINE PLUS BACKGROUND} 24 1.0 -0.46 0.21 25 2.0 0.54 0.29 TABLE B-1 26 1.0 -0.46 0.21 Factors for Comparisioo of Survev Data with Guidelines 27 1.0 -0.46 0.21 I (df) 95% 97.5% (df) 95% 97.5% 28 2.0 0.54 0.29 29 1.0 -0.46 0.2) 30 2.0 0.54 0.29 l 6.314 12.706 19 1.729 2.093 2 2.92 4.303 20 J.725 2.086 3 2.353 3.182 21 J.721 2.08 31 1.0 -0.46 0.21 4 2.132 2.776 22 1.717 2.074 32 2.0 0.54 0.29 5 2.015 2.571 23 1.714 2.069 33 1.0 -0.46 0.21 6 1.943 2.447 24 1.711 2.064 34 2.0 0.54 0.29 7 1.895 2.365 25 1.708 2.06 35 2.0 0.54 0.29 8 1.86 2.306 26 1.706 2.056 36 2.0 0.54 0.29 9 1.833 2.262 27 1.703 2.052 37 1.0 -0.46 0.21 IO l.812 2.228 28 1.701 2.048 38 1.0 -0.46 0.21 11 J.796 2.201 29 1.699 2.045 39 1.0 -0.46 0.21 12 l.782 2.179 30 1.697 2.042 40 2.0 0.54 0.29 I 13 1.771 2.16 40 1.684 2.0:.n 41 1.0 -0.46 0.21 14 1.761 2.145 60 1.671 2 42 1.0 -0.46 0.21 15 J.753 2.131 120 1.658 1.98 43 1.0 -0.46 0.21 16 1.746 2.12 400 l.649 J.966 44 1.0 -0.46 0.21 17 1.74 2.11 Infinite 1.645 1.96 45 2.0 0.54 0.29 18 1.734 2.101 46 1.0 -0.46 0.21 47 1.0 -0.46 0.21 48 1.0 -0.46 0.21 For,*aloes of Degrees of Freedom not listed: 49 2.0 0.54 0.29 50 1.0 -0.46 0.21 Interpolate between th.,..;;e;..:l...;.is'-'te_d_'\\'..;.:al,.:cu.::.ces;.:._. --..------.-----. (df) high value(Z) 400 is (B 1.649 95% (df) low value(Y) 120 is (A) 1.658 95% 67 1l.953 Desired value(df) (X) 307 is calculated as follow:

7) 12.264 78 12.810 EXP[( (Ln(B) - Ln(A))-;- (Z - Y) ) (X - Y) + Ln{A) )

The (df) value for (X) I 307 ! 1.652 j 95% 76 12.654 77 12.732 13 2.090 DATE: ~ 5* ~c;Cf DATE: '-f-{;-<j f 450.0 76.532 Sum(n) Sum(n-N)1 Page 1 of4 C:\\OFFICE\\AREA\\I\\IPPYCMTH.WB2

04/05/99 CIMARRON CORPORATION - CIM RRON FACILITY TRUE MEAN ACTIVITY VS. GUIDE INE VALUE AT 95% CONFIDENCE AREA "1 11 PLUTONIUM PLANT (AFFECTED)DEPTH n = pCi/2 Th (NAT) n=p Ci/ Th (N \\T '1! f } Number n (n-N) (n-N)2 Number n (n-N) (n-N)1 51 1.0 -0.46 0.21 101 1.0 -0.46 0.21 52 1.0 -0.46 0.21 102 1.0 -0.46 0.21 53 2.0 0.54 0.29 103 2.0 0.54 0.29 54 1.0 -0.46 0.21 104 1.0 -0.46 0.21 55 1.0 -0.46 0.21 105 2.0 0.54 0.29 56 1.0 -0.46 0.21 106 1.0 -0.46 0.21 57 1.0 -0.46 0.21 107 1.0 -0.46 0.21 58 1.0 -0.46 0.21 108 2.0 0.54 0.29 59 2.0 0.54 0.29 109 1.0 -0.46 0.21 60 2.0 0.54 0.29 110 1.0 -0.46 0.21 61 1.0 -0.46 0.21 lll 2.0 0.54 0.29 62 1.0 -0.46 0.21 112 1.0 -0.46 0.21 63 1.0 -0.46 0.21 113 1.0 -0.46 0.21 64 1.0 -0.46 0.21 114 1.0 -0.46 0.21 65 1.0 -0.46 0.21 115 1.0 -0.46 0.21 66 1.0 -0.46 0.21 116 2.0 0.54 0.29 67 1.0 -0.46 0.21 117 1.0 -0.46 0.21 68 1.0 -0.46 0.21 118 1.0 -0.46 0.21 69 1.0 -0.46 0.21 l 19 1.0 -0.46 0.21 70 1.0 -0.46 0.21 120 2.0 0.54 0.29 71 1.0 -0.46 0.21 121 1.0 -0.46 0.21 72 2.0 0.54 0.29 122 2.0 0.54 0.29 73 1.0 -0.46 0.21 123 1.0 -0.46 0.21 74 1.0 -0.46 0.21 124 2.0 0.54 0.29 75 2.0 0.54 0.29 125 1.0 -0.46 0.21 76 1.0 -0.46 0.21 77 2.0 0.54 0.29 78 1.0 -0.46 0.21 126 1.0 -0.46 0.21 127 1.0 -0.46 0.21 128 1.0 -0.46 0.21 79 2.0 0.54 0.29 129 1.0 -0.46 0.21 80 2.0 0.54 0.29 130 1.0 -0.46 0.21 81 2.0 0.54 0.29 131 2.0 0.54 0.29 82 2.0 0.54 0.29 132 1.0 -0.46 0.21 83 2.0 0.54 0.29 133 1.0 -0.46 0.21 84 1.0 -0.46 0.21 134 1.0 -0.46 0.21 85 1.0 -0.46 0.21 135 2.0 0.54 0.29 86 2.0 0.54 0.29 136 2.0 0.54 0.29 87 1.0 -0.46 0.21 137 2.0 0.54 0.29 88 1.0 -0.46 0.21 138 2.0 0.54 0.29 89 1.0 -0.46 0.21 139 1.0 -0.46 0.21 90 2.0 0.54 0.29 140 2.0 0.54 0.29 91 2.0 0.54 0.29 141 1.0 -0.46 0.21 92 1.0 -0.46 0.21 142 2.0 0.54 0.29 93 2.0 0.54 0.29 143 2.0 0.54 0.29 94 1.0 -0.46 0.21 144 1.0 -0.46 0.21 95 1.0 -0.46 0.21 145 2.0 0.54 0.29 96 1.0 -0.46 0.21 146 2.0 0.54 0.29 97 1.0 -0.46 0.21 147 2.0 0.54 0.29 98 2.0 0.54 0.29 148 2.0 0.54 0.29 99 2.0 0.54 0.29 149 2.0 0.54 0.29 100 1.0 -0.46 0.21 150 1.0 -0.46 0.21 67 11.953 71 12.264 Sum(n) Sum(n-N)1 Sum(n) Sum(n-N)1 Page 2 of4 C:\\OFFICEIAREA\\I\\IPPYCMTH.WB2

04/05/99 CIMARRON CORPORATION - CIM1'RRON FACILITY TRUE MEAN ACTIVITY VS. GUIDEtlNE VALUE AT 95% CONFIDENCE AREA urn PLUTONIUM PLANT ARD {AFFECTED)DEPTH Ci/ Th (NAT) n=p, 'f n= P. *g h Ci/ T (NAT ) Number n (n-N) (n-N)1 Number n (n-N) (n-N)1 151 1.0 -0.46 0.21 201 2.0 0.54 0.29 152 2.0 0.54 0.29 202 2.0 0.54 0.29 153 2.0 0.54 0.29 203 1.0 -0.46 0.21 154 1.0 -0.46 0.21 204 2.0 0.54 0.29 155 2.0 0.54 0.29 205 1.0 -0.46 0.21 156 2,0 0.54 0.29 206 1.0 -0.46 0.21 157 1,0 -0.46 0.21 207 2.0 0.54 0.29 158 2.0 0.54 0.29 208 1.0 -0.46 0.21 159 2.0 0.54 0.29 209 2.0 0.54 0.29 160 2.0 0.54 0.29 210 1.0 -0.46 0.21 161 2.0 0.54 0.29 211 1.0 -0.46 0.21 162 1.0 -0.46 0.21 212 1.0 -0.46 0.21 163 1.0 -0.46 0.21 213 1.0 -0.46 0.21 164 1.0 -0.46 0.21 214 1.0 -0.46 0.21 165 1.0 -0.46 0.21 215 2.0 0.54 0.29 166 2.0 0.54 0.29 216 2.0 0.54 0.29 167 2.0 0.54 0.29 217 2.0 0.54 0.29 168 2.0 0.54 0.29 218 2.0 0.54 0.29 169 2.0 0.54 0.29 219 2.0 0.54 0.29 170 2.0 0.54 0.29 220 1.0 -0.46 0.21 171 2.0 0.54 0.29 221 2.0 0.54 0.29 172 1.0 -0.46 0.21 222 2.0 0.54 0.29 173 1.0 -0.46 0.21 223 2.0 0.54 0.29 174 2.0 0.54 0.29 224 1.0 -0.46 0.21 175 2.0 0.54 0.29 225 1.0 -0.46 0.21 176 1.0 -0.46 0.21 226 1.0 -0.46 0.21 177 2.0 0.54 0.29 227 1.0 -0.46 0.21 178 2.0 0.54 0.29 228 1.0 -0.46 0.21 179 2.0 0.54 0.29 229 1.0 -0.46 0.21 180 1.0 -0.46 0.21 230 1.0 -0.46 0.21 181 2.0 0.54 0.29 231 2.0 0.54 0.29 182 1.0 -0.46 0.21 232 2.0 0.54 0.29 183 2.0 0.54 0.29 233 2.0 0.54 0.29 184 2.0 0.54 0.29 234 1.0 -0.46 0.21 185 2.0 0.54 0.29 235 1.0 -0.46 0.21 186 1.0 -0.46 0.21 236 1.0 -0.46 0.21 187 1.0 -0.46 0.21 237 2.0 0.54 0.29 188 2.0 0.54 0.29 238 2.0 0.54 0.29 189 1.0 -0.46 0.21 239 2.0 0.54 0.29 190 1.0 -0.46 0.21 240 2.0 0.54 0.29 191 1.0 -0.46 0.21 241 2.0 0.54 0.29 192 1.0 -0.46 0.21 242 2.0 0.54 0.29 193 2.0 0.54 0.29 243 2.0 0.54 0.29 194 1.0 -0.46 0.21 244 1.0 --0.46 0.21 195 1.0 -0.46 0.21 245 2.0 0.54 0.29 196 1.0 -0.46 0.21 246 1.0 --0.46 0.21 197 1.0 -0.46 0.21 247 1.0 -0.46 0.21 198 2.0 0.54 0.29 248 1,0 -0.46 0.21 199 2.0 0.54 0.29 249 2.0 0.54 0.29 200 2.0 0.54 0.29 250 2.0 0.54 0.29 78 12.810 76 12.654 Sum(n) Sum(n-N)1 Sum(n) Sum(n-N)1 Page J of 4 C:\\OFF1CE\\AREA\\I\\IPPYCMTH.WB2

04/05/99 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDEUINE VALUE AT 95% CONFIDENCE AREA 11 I 11 PLUTONIUM PLANT 1ARD (AFFECTED)DEPTH C N T n= p il1?.Th ( A ) n= P' ,g h (1 A ) Ci/ T N T Number n (n-N) (n-N)2 Number n (n-N) (n-N)i 251 2.0 0.54 0.29 301 2.0 0.54 0.29 252 2.0 0.54 0.29 302 2.0 0.54 0.29 253 1.0 -0.46 0.21 303 2.0 0.54 0.29 254 1.0 -0.46 0.21 304 2.0 0.54 0.29 255 1.0 -0.46 0.21 305 2.0 0.54 0.29 256 1.0 -0.46 0.21 306 1.0 -0.46 0.21 257 1.0 -0.46 0.21 307 1.0 -0.46 0.21 258 2.0 0.54 0.29 308 1.0 -0.46 0.21 2S9 1.0 -0.46 0.21 309 0.0 0.00 0.00 260 2.0 0.54 0.29 310 0.0 0.00 0.00 261 2.0 0.54 0.29 311 0.0 0.00 0.00 262 2.0 0.54 0.29 312 0.0 0.00 0.00 263 1.0 -0.46 0.21 313 0.0 0.00 0.00 264 2.0 0.54 0.29 314 0.0 0.00 0.00 265 1.0 -0.46 0.21 315 0.0 0.00 0.00 266 1.0 -0.46 0.21 316 0.0 0.00 0.00 267 1.0 -0.46 0.21 317 0.0 0.00 0.00 268 1.0 -0.46 0.21 318 0.0 0.00 0.00 269 2.0 0.54 0.29 319 0.0 0.00 0.00 270 2.0 0.54 0.29 320 0.0 0.00 0.00 271 1.0 -0.46 0.21 321 0.0 0.00 0.00 272 2.0 0.54 0.29 322 0.0 0.00 0.00 273 2.0 0.54 0.29 323 0.0 0.00 0.00 274 1.0 -0.46 O.ll 324 0.0 0.00 0.00 275 1.0 -0.46 0.21 325 0.0 0.00 0.00 276 2.0 0.54 0.29 326 0.0 0.00 0.00 277 2.0 0.54 0.29 327 0.0 0.00 0.00 278 1.0 -0.46 0.21 328 0.0 0.00 0.00 279 1.0 -0.46 0.21 329 0.0 0.00 0.00 280 2.0 0.54 0.29 330 0.0 0.00 0.00 281 1.0 -0.46 0.21 331 0.0 0.00 0.00 282 2.0 O.S4 0.29 332 0.0 0.00 0.00 283 1.0 -0.46 0.21 333 0.0 0.00 0.00 284 2.0 0.54 0.29 334 0.0 0.00 0.00 285 1.0 -0.46 0.21 335 0.0 0.00 0.00 286 2.0 0.54 0.29 336 0.0 0.00 0.00 287 1.0 -0.46 0.21 337 0,0 0.00 0.00 288 2.0 0.54 0.29 338 0.0 0.00 0.00 289 2.0 0.54 0.29 339 0.0 0.00 0.00 290 2.0 0.54 0.29 340 0.0 0.00 0.00 291 1.0 -0.46 0.21 341 0.0 0.00 0.00 292 1.0 -0.46 0.21 342 0.0 0.00 0.00 293 2.0 0.54 0.29 343 0.0 0.00 0.00 294 2.0 0.54 0.29 344 0.0 0.00 0.00 295 2.0 0.54 0.29 345 0.0 0.00 0.00 296 2.0 0.54 0.29 346 0.0 0.00 0.00 297 2.0 0.54 0.29 347 0.0 0.00 0.00 298 1.0 -0.46 0.21 348 0.0 0.00 0.00 299 2.0 0.54 0.29 349 0.0 0.00 0.00 300 2.0 0.54 0.29 350 0.0 0.00 0.00 77 12.732 13 2.090 Sum(n) Sum(n-N)2 Sum(n) Sum(n-N)1 Page 4 of 4 C:\\OFFICE\\AREA\\I\\IPPYCMTH.W82

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I~ Q -1 4~ ( s 1 µ C A L E I N M E T E R s i IP 190 80 NOTES: LEGEND: ~ URANIUM (pCi/g U). 6 URANIUM, 1 - 30 pCi/g U CIMARRON CORPORATION + CIMARRON GAMMA SPEC SOIL COUNTER 45+ URANIUM, > 30 pCi/g U CIMARRON FACILITY SITE SOIL BACKGROUND OF APPROX. 4.0 pCi/g U, NOT SUBTRACTED. c+ CONCRETE- ~lO SAMPLE PHASE II - SUB-AREA I CT+ COOUNG TOWER AFFECTED AREA - PU PLANT YARD 0 UGHT POLE SOIL SAMPLE RESULTS - SURFACE PLUTONIUM YPRD DRWN. OAl[ I SCAli: REV. DESCRIPTION )!lffl BY: CK'O BY: Al'P'I) B"f: DATE BY JE 4-19-99 AS SHOWN JOB NO. DRAWING NO. 99P0SIPUSS-O I - 0 DRAWING ISSUED. JE WR JL 6/21/99 ... \\SUBAREAJ\\PU-YMD-SURFAC£\\99P0SIPUSS}}

ML20212L543

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