ML19363A006

Cimarron Corp Phase II-Sub-Area G - Surface Affected Expanded Drainage Cimarron Soil Counter Total Uranium Soil Sample Results Site Background of 4 Pci/G Not Subtracted

ML19363A006
Person / Time
Site:	07000925
Issue date:	08/04/1999
From:	Cimarron Corp
To:	Office of Nuclear Material Safety and Safeguards
Shared Package
ML19365A023	List: ML19361A179 ML19363A001 ML19363A002 ML19363A003 ML19363A004 ML19363A005 ML19363A006 ML19363A007 ML19363A008 ML19363A009 ML19363A010 ML19363A011 ML19363A013 ML19363A014 ML19363A015 ML19363A016 ML19364A126 ML19364A231 ML19364A232 ML19364A233 ML19364A234 ML19364A235 ML19364A236 ML19364A237 ML19364A238 ML19364A239
References
Download: ML19363A006 (39)

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Wednesday,August04, 1999 PHASE II - SUB-AREA 'G' - SURFACE AFFECTED EXPANDED DRAINAGE CIMARRON SOIL COUNTER TOTAL URANIUM ~OIL SAMPLE RESULTS SITE BACKGROUND CJ)F 4 pCi/g NOT SUBTRACTED AUGUST 4, 1999 URANIUM ~OIL SAMPLES FREQUENcif' DISTRIBUTION 500 ~---~---------,

Cf) w

~ 400 i------

1

---le------

<(

Cf> 300 I LL

+-----+----

Q 200 ~--+---

0::'.

w

~ 100 +-

- ~

) z 0 -+--, ~

5 10 15 pCi/g 20 25 NUMBER OF SAMPLES 694 AVERAGE SAMPLE 11.3 MINIMUM SAMPLE 4.2

• MAXIMUM SAMPLE 21.2 STANDARD DEVIATION 2.8 A\\GAEDURGP.WB2

Wednesday, August 04, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED EXPANDED DRAINAGE CIMARRON SOIL COUNTER TOTAL THORIUM SOIL SAMPLE RESULTS SITE BACKGROUNI!) OF 1.5 pCi/g NOT SUBTRACTED AUCpUST 4, 1999 THORIUM! SOIL SAMPLES FREQUENtY DISTRIBUTION en 500 -

I LU

---

+--

-.J a.. 400 -----+-

~

~ 300 ----+-

LJ...

O 200 ------,-t-a:::

LU

~ 100

J z O -.-

1 1.5 2

2.5 pCi/g NUMBER OF SAMPLES 694 AVERAGE SAMPLE 1.3 MINIMUM SAMPLE 0.4 MAXIMUM SAMPLE 2.4 STANDARD DEVIATION 0.3 A:\\GAEDTHGP. WB2

VVednesday, August 04, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED EXPANDED DRAINAGE MICRO-R METER READINGS AT SURFACE LUDLUM MODEL 19, S/N 111299 RESULTS IN µR/hr AUGµsr 4, 1999 MICRO "R" RE DINGS @ SURFACE FREQUENC DISTRIBUTION CfJ 250 -

(9 z

o 200 - ~

------~' -

<{

_J_* -

~

~

~ 150 ----~--i--;

LL 0 1 00 ------+-----;---c-0::

~ 5 0 -

---+-------+-

~

)

i 11+.

z 0 - -

i 7

8. 9. 10 11 12 13 14 15

µR/hr NUMBER OF SAMPLES 694 AVERAGE SAMPLE 11 MINIMUM SAMPLE 7

MAXIMUM SAMPLE 15 STANDARD DEVIATION 2

A:\\GAEDMRGP.VVB2

VVednesday,August04, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED EXPANDED DRAINAGE MICRO-R METER READINGS AT 1 METER ABOVE SURFACE LUDLUM MODEL 19, S/N 111299 I

RESU!LTS IN µR/hr i

AUG~ST 4, 1999 MICRO "R" RE DINGS @ 1 METER FREQUENC DISTRIBUTION (f)

CJ z 2 0 0 *~--+------+-----+--+--+-

0

<(

w 150 ~! --+--+---+----t-0::::

i

u.

t----t----+-------t--+-

0 1 0 0 +-

1 --I--+----+--~

0::::

i w

+-----+--+----+-

~ 50 +--

1 --+-~+-----+-

J

+--1 --'---,:.-..------..--f-z O _,_,.' ~-------+-

6 7

8. 9. 10 11

12. 13. 14 15

µR/hr NUMBER OF SAMPLES 694 AVERAGE SAMPLE 11 MINIMUM SAMPLE 6

MAXIMUM SAMPLE 15 STANDARD DEVIATION 1

A:\\GAEDMRGP.VVB2

VVednesday,August04, 1999 PHASE II, SUB-AREA "G" - SURFACE AFFECTED EXPANDED DRAINAGE GROSS GAMIMA READINGS IN CPM LUDLUM M<!)DEL 2221, SIN 97264 BACKGROUND AVERAGES: 8000 A~GUST 4,1999 3" Nal DET CTOR READINGS FREQUEN. Y DISTRIBUTION (I) 350 -

(9 z 300 -------;-~~-+-

~ 250 -

---+-

---++-

w

~ 2 00 ---+-----++-

LL O 150 ----+------++-

ffi 1 0 0 -----+-------++-

~ 50 ----+1------++-!

=)

1 Ii I

z O -sooo ' eooo '~oooo110001200013_0_0014_o_od CPM NUMBER OF SAMPLES 694 AVERAGE SAMPLE 9894 MINIMUM SAMPLE 4820 MAXIMUM SAMPLE 13200 ST ANDA RD DEVIATION 839 A:\\GAED3DGP.WB2

Thursday, August 05. 1999 CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n = oCU~ TOTAL U Number n

(n-N)

[n-N)'

1 8.4

-2.9 8.5 2

6.9

-4.4 19.5 3

9.5

-1.8 3.3 4

7.8

-3.5 12.4 5

7.8

-3.5 12.4 6

7.5

-3.8 14.6 7

8.8

-2.5 6.3 8

7.0

-4.3 18.7 9

9.1

-2.2 4.9 10 12.2 0.9 0.8 11 10.1

-1.2 1.5 12 10.6

-0.7 0.5 13 12.2 0.9 0.8 14 8.4

-2.9 8.5 15 11.4 0.1 0.0 16 6.6

-4.7 22.3 17 8.1

-3.2 10.4 18 7.2

-4.1 17.0 19 5.8

-5.5 30.5 20 6.1

-5.2 27.2 21 11.0

-0.3 0.1 22 13.5 2.2 4.8 23 5.2

-G.1 37.4 24 12.3 1.0 1.0 25 9.6

-1.7 3.0 26 9.4

-1.9 3.7 27 10.1

-1.2 1.5 28 12.0 0.7 0.5 29 5.6

-5.7 32.7 30 5.5

-5.8 33.9 31 5.5

-5.8 33.9 32 5.9

-5.4 29.4 33 4.7

-6.6 43.8 34 5.3

-6.0 36.2 35 7.1

-4.2 17.8 36 5.8

-5.5 30.5 37 6.9

-4.4 19.5 38 6.1

-5.2 27.2 39 7.8

-3.5 12.4 40 12.0 0.7 0.5 41 11.3..

-0.0 0.0 42 11.3

-0.0 0.0 43 9.7

-1.6 2.6 44 10.5

-0.8 0.7 45 8.9

-2.4 5.9 46 10.6

-0.7 0.5 47 8.6

-2.7 7.4 48 8.1

-3.2 10.4 49 9.6

-1.7 3.0 50 10.2

-1.1 1.3 606.2 463.1 624.4 706,1 560.4 292.8 601.2 425.1 566.4 172.0 587.7 301.9 579.7 304.2 520.5 319.2 531.3 314.2 576.1 505.7 611.3 308.9 618.2 402.9 440.8 334.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 a.a 0.0 0.0 0.0 total 7855.8 5472.1 Sum(n)

Sum(n-N)'

A:IGAEDURCP.V\\182 No. of Samples (x):

694 COUNT TIME: 5 MINUTES Sample Me!lln (NJ= Sum(n) +,.,.(x=J~...,..,,..--.

Sample M..;.n (NJ :

[

11. 32 I

i Standard ~eviation (SdJ = SQRT [(n-N)' + (x - 1)]

i i

I Standardteviation:

I 2.81 2 Std D viations:

5.62 Degree of reedom(df).= (x). 1 Data listed on Table 8-1 I

(di).,

[

1.645

[

Area's Avetage Level \\Aµ)= (NJ+ (di) x [(Sd)ISQRT(x)]

i I

(Aµ]=

GUIDElliE VALUE:

Acceptabli Level:

pCi/gU TOTAL U pCi/gU TOTAL U pCi/gU TOTAL U TABLE B-1 Factors for Comparision of Survey Data with Guidelines

[di) i 95%

97.5%

(di) 95%

1 6.314 12.706 19 1.729 2

2.92 4.303 20 1.725 3

2.353 3.182 21 1.721 4

2.132 2.776 22 1.717 5

2.015 2.571 23 1.714 6

1.943 2.447 24 1.711 7

1.895 2.365 25 1.708 8

1.86 2.306 26 1.706 9

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

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 Interpolate between lhe liste.-d_va_1u_e_s_. ---r-----r-1,.._.,,.64_,5::-,------,

(di) high value(Z) 1--.:.clN;.;.F __ IN_IT_E_+-_l*-'-(B'-')-+---+--9-5_'!.--t (df) low vailue(Y) 1---40,_0---+ __

is~(A.~)~~1_._64_9~_9_5_'!.~

Desired value(df) (X) 693 is calculated as follow:

EXP[( (Ln(B)-Ln(A)) + (Z-Y) )r'("-'X--*Y._J _+_Ln~(_A)~l-.--,-.,..,.,,--.,.----,

The(df) valuefor(()

lj~

1_1*645 j 95%

PERFORMED BY:~~#

DATE:

REVIEWED BY: ~

• u_ * ~

DATE:

PAGE 1 OF 8

Thursday, August 05, 1999 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n = pCi/g TOTAL U Number n

(n-N)

(n-N)2 Number n

(n-N) 51 13.4 2.08 4.33 101 17.6 6.28 52 11.7 0.38 0.14 102 11.4 0.08 53 13.1 1.78 3.17 103 12.7 1.38 54 10.1

-1.22 1.49 104 7.3

-4.02 55 12.6 1.28 1.64 105 12.1 0.78 56 12.0 0.68 0.46 106 8.6

-2.72 57 10.7

-0.62 0.38 107 9.6

-1.72 58 13.3 1.98 3.92 108 7.3

-4.02 59 9.7

-1.62 2.62 109 13.9 2.58 60 10.4

-0.92 0.85 110 15.7 4.38 61 7.8

-3.52 12.39 111 10.3

-1.02 62 10.8

-0.52 0.27 112 15.0 3.68 63 12.6 1.28 1.64 113 9.1

-2.22 64 11.2

-0.12 0.01 114 6.8

-4.52 65 11.6 0.28 0.08 115 13.6 2.28 66 7.5

-3.82 14.59 116 14.2 2.88 67 13.9 2.58 6.66 117 12.9 1.58 68 10.0

-1.32 1.74 118 14.8 3.48 69 7.8

-3.52 12.39 119 15.0 3.68 70 13.8 2.48 6.15 120 21.2 9.88 71 12.8 1.48 2.19 121 19.4 8.08 72 15.1 3.78 14.29 122 8.2

-3.12 73 14.3 2.98 8.88 123 8.7

-2.62 74 16.5 5.18 26.84 124 14.2 2.88 75 8.1

-3.22 10.37 125 9.8

-1.52 76 13.0 1.68 2.82 126 15.1 3.78 77 15.7 4.38 19.19 127 9.1

-2.22 78 12.5 1.18 1.39 128 11.6 0.28 79 14.1 2.78 7.73 129 12.1 0.78 80 15.4 4.08 16.65 130 5.0

-6.32 81 7.7

-3.62 13.10 131 10.9

-0.42 82 9.5

-1.82 3.31 132 10.9

-0.42 83 9.8

-1.52 2.31 133 11.2

-0.12 84 7.9

-3.42 11.69 134 7.7

-3.62 85 7.9

-3.42 11.69 135 12.5 1.18 86 13.0 1.68 2.82 136 13.1 1.78 87 15.4 4.08 16.65 137 11.8 0.48 88 8.1

-3.22 10.37 138 14.5 3.18 89 13.4 2.08 4.33 139 16.5 5.18 90 7.3

-4.02 16.16 140 16.4 5.08 91 8.3

-3.02 9.12 141 20.3 8.98 92 10.8

-0.52 0.27 142 17.9 6.58 93 14.1 2.78 7.73 143 12.8 1.48 94 15.7 4.38 19.19 144 11.5 0.18 95 17.5 6.18 38.20 145 15.4 4.08 96 19.1 7.78 60.53 146 13.2 1.88 97 14.2 2.88 8.30 147 11.1

-0.22 98 15.1 3.78 14.29 148 9.1

-2.22 99 14.1 2.78 7.73 149 16.4 5.08 100 15.8 4.48 20.07 150 8.9

-2.42 606.2 463.1 624.4 Sum(n)

Sum(n-N)2 Sum(n)

PAGE 2 OF 8 A:\\GAEDURCP.WB2 (n-N)2 39.44 0.01 1.91 16.16 0.61 7.40 2.96 16.16 6.66 19.19 1.04 13.55 4.93 20.43 5.20 8.30 2.50 12.11 13.55 97.62 65.29 9.73 6.86 8.30 2.31 14.29 4.93 0.08 0.61 39.94 0.18 0.18 0.01 13.10 1.39 3.17 0.23 10.11 26.84 25.81 80.65 43.30 2.19 0.03 16.65 3.54 0.05 4.93 25.81 5.85 706.1 Sum(n-N)2

Thursday, August 05. 1999 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n = pCi/g TOTAL U Number n

(n-Nl (n-N)2 Number n

(n-N) 151 14.1 2.78 7.73 201 14.9 3.58 152 12.1 0.78 0.61 202 15.4 4.08 153 6.6

-4.72 22.27 203 15.1 3.78 154 10.4

-0.92 0.85 204 12.2 0.88 155 13.6 2.28 5.20 205 13.2 1.88 156 11.9 0.58 0.34 206 13.1 1.78 157 10.0

-1.32 1.74 207 9.9

-1.42 158 11.7 0.38 0.14 208 14.6 3.28 159 9.4

-1.92 3.68 209 7.5

-3.82 160 11.6 0.28 0.08 210 15.2 3.88 161 11.5 0.18 0.03 211 12.4 1.08 162 10.9

-0.42 0.18 212 6.6

-4.72 163 16.2 4.88 23.82 213 9.6

-1.72 164 13.8 2.48 6.15 214 5.9

-5.42 165 15.9 4.58 20.98 215 13.9 2.58 166 9.4

-1.92 3.68 216 11.7 0.38 167 13.7 2.38 5.67 217 11.0

-0.32 168 18.3 6.98 48.73 218 10.1

-1.22 169 11.0

-0.32 0.10 219 11.7 0.38 170 12.4 1.08 1.17 220 12.5 1.18 171 10.5

-0.82 0.67 221 10.0

-1.32 172 11.6 0.28 0.08 222 14.6 3.28 173 9.0

-2.32 5.38 223 13.9 2.58 174 10.8

-0.52 0.27 224 15.7 4.38 175 9.5

-1.82 3.31 225 14.4 3.08 176 11.2

-0.12 0.01 226 13.9 2.58 177 8.9

-2.42 5.85 227 15.9 4.58 178 13.2 1.88 3.54 228 11.2

-0.12 179 15.8 4.48 20.07 229 12.2 0.88 180 12.8 1.48 2.19 230 13.9 2.58 181 13.9 2.58 6.66 231 14.6 3.28 182 8.4

-2.92 8.52 232 11.1

-0.22 183 8.7 '

-2.62 6.86 233 7.8

-3.52 184 11.6 0.28 0.08 234 11.0

-0.32 185 13.4 2.08 4.33 235 8.7

-2.62 186 10.9

-0.42 0.18 236 8.2

-3.12 187 10.2

-1.12 1.25 237 12.7 1.38 188 11.6 0.28 0.08 238 12.5 1.18 189 9.2

-2.12 4.49 239 9.7

-1.62 190 8.9

-2.42 5.85 240 6.9

-4.42 191 8.3

-3.02 9.12 241 8.6

-2.72 192 10.6

-0.72 0.52 242 12.2 0.88 193 9.2

-2.12 4.49 243 9.1

-2.22 194 10.4

-0.92 0.85 244 14.5 3.18 195 9.2

-2.12 4.49 245 17.1 5.78 196 5.2

-6.12 37.45 246 15.9 4.58 197 10.4

-0.92 0.85 247 11.9 0.58 198 10.1

-1.22 1.49 248 15.1 3.78 199 10.6

-0.72 0.52 249 7.2

-4.12 200 11.8 0.48 0.23 250 14.2 2.88 560.4 292.8 601.2 Sum(n)

Sum(n*N)2 Sum(n)

PAGE 3 OF 8 A:\\GAEDU RCP.W82 (n-N)2 12.82 16.65 14.29 0.78 3.54 3.17 2.02 10.76 14.59 15.06 1.17 22.27 2.96 29.37 6.66 0.14 0.10 1.49 0.14 1.39 1.74 10.76 6.66 19.19 9.49 6.66 20.98 0.01 0.78 6.66 10.76 0.05 12.39 0.10 6.86 9.73 1.91 1.39 2.62 19.53 7.40 0.78 4.93 10.11 33.41 20.98 0.34 14.29 16.97 8.30 425.1 Sum(n-N)2

Thursday, August 05, 1999 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n "" pCi/g TOT AL U Number n

(n*N)

(n-N)'

Number n

(n*N) 251 12.5 1.18 1.39 301 10.3

-1.02 252 12.2 0.88 0.78 302 20.5 9.18 253 11.6 0.28 0.08 303 11.1

-0.22 254 12.8 1.48 2.19 304 12.6 1.28 255 10.6

-0.72 0.52 305 13.2 1.88 256 9.0

-2.32 5.38 306 10.2

-1.12 257 9.3

-2.02 4.08 307 14.3 2.98 258 12.7 1.38 1.91 308 11.8 0.48 259 12.9 1.58 2.50 309 10.6

-0.72 260 10.7

-0.62 0.38 310 12.8 1.48 261 15.1 3.78 14.29 311 12.8 1.48 262 9.5

-1.82 3.31 312 10.3

-1.02 263 9.4

-1.92 3.68 313 12.1 0.78 264 10.5

-0.82 0.67 314 14.7 3.38 265 12.3 0.98 0.96 315 13.1 1.78 266 8.1

-3.22 10.37 316 13.1 1.78 267 11.3

-0.02 0.00 317 12.1 0.78 268 11.9 0.58 0.34 318 9.9

-1.42 269 11.6 0.28 0.08 319 10.2

-1.12 270 11.1

-0.22 0.05 320 13.3 1.98 271 12.4 1.08 1.17 321 7.6

-3.72 272 8.3

-3.02 9.12 322 10.0

-1.32 273 12.2 0.88 0.78 323 9.8

-1.52 274 10.1

-1.22 1.49 324 7.8

-3.52 275 10.4

-0.92 0.85 325 12.1 0.78 276 12.8 1.48 2.19 326 13.5 2.18 277 13.1 1.78 3.17 327 13.5 2.18 278 10.4

-0.92 0.85 328 12.1 0.78 279 7.4

-3.92 15.36 329 16.8 5.48 280 9.3

-2.02 4.08 330 12.1 0.78 281 1'3.9 2.58 6.66 331 11.2

-0.12 282 11.2

-0.12 0.01 332 12.1 0.78 283 13.7 '

2.38 5.67 333 12.3 0.98 284 15.4 4.08 16.65 334 11.1

-0.22 285 10.9

-0.42 0.18 335 13.5 2.18 286 9.0

-2.32 5.38 336 11.3

-0.02 287 11.3

-0.02 0.00 337 15.7 4.38 288 9.5

-1.82 3.31 338 14.2 2.88 289 10.5

-0.82 0.67 339 8.3

-3.02 290 11.1

-0.22 0.05 340 10.0

-1.32 291 15.3 3.98 15.84 341 7.7

-3.62 292 13.3 1.98 3.92 342 14.0 2.68 293 13.7 2.38 5.67 343 11.8 0.48 294 13.2 1.88 3.54 344 10.1

-1.22 295 11.2

-0.12 0.01 345 10.8

-0.52 296 8.7

-2.62 6.86 346 7.2

-4.12 297 9.5

-1.82 3.31 347 10.0

-1.32 298 11.2

-0.12 0.01 348 13.3 1.98 299 12.2 0.88 0.78 349 9.7

-1.62 300 10.1

-1.22 1.49 350 9.1

-2.22 566.4 172.0 587.7 Sum(n)

Sum(n-N)2 Sum(n)

PAGE40F8 A:\\GAEDURCP.WB2 (n-Nl2 1.04 84.28 0.05 1.64 3.54 1.25 8.88 0.23 0.52 2.19 2.19 1.04 0.61 11.43 3.17 3.17 0.61 2.02 1.25 3.92 13.84 1.74 2.31 12.39 0.61 4.75 4.75 0.61 30.03 0.61 0.01 0.61 0.96 0.05 4.75 0.00 19.19 8.30 9.12 1.74 13.10 7.18 0.23 1.49 0.27 16.97 1.74 3.92 2.62 4.93 301.9 Sum(n-N)2

Thursday, August 05, 1999 CIMARRON CORPORATION

• CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n = pCi/g TOTAL U Number n

(n-N)

(n-N)2 Number n

(n-N) 351 11.3 0.00 0.00 401 7.0

-4.32 352 9.5

-1.82 3.31 402 11.3

-0.02 353 8.1

-3.22 10.37 403 11.1

-0.22 354 17.0 5.68 32.27 404 11.7 0.38 355 9.5

-1.82 3.31 405 10.0

-1.32 356 9.2

-2.12 4.49 406 10.1

-1.22 357 10.7

-0.62 0.38 407 11.8 0.48 358 12.6 1.28 1.64 408 10.6

-0.72 359 11.1

-0.22 0.05 409 9.0

-2.32 360 17.4 6.08 36.97 410 10.9

-0.42 361 12.0 0.68 0.46 411 10.3

-1.02 362 11.3

-0.02 0.00 412 8.8

-2.52 363 8.9

-2.42 5.85 413 5.3

-6.02 364 12.0 0.68 0.46 414 5.7

-5.62 365 12.7 1.38 1.91 415 8.1

-3.22 366 11.4 0.08 0.01 416 12.9 1.58 367 11.3

-0.02 0.00 417 11.0

-0.32 368 12.4 1.08 1.17 418 7.4

-3.92 369 11.3

-0.02 0.00 419 10.5

-0.82 370 12.7 1.38 1.91 420 13.8 2.48 371 13.6 2.28 5.20 421 14.5 3.18 372 10.6

-0.72 0.52 422 10.1

-1.22 373 10.9

-0.42 0.18 423 10.6

-0.72 374 12.7 1.38 1.91 424 13.0 1.68 375 8.9

-2.42 5.85 425 12.1 0.78 376 5.5

-5.82 33.87 426 10.9

-0.42 377 15.0 3.68 13.55 427 8.7

-2.62 378 9.5

-1.82 3.31 428 11.0

-0.32 379 11.3

-0.02 0.00 429 13.8 2.48 380 14.1 2.78 7.73 430 12.3 0.98 381 13.2 1.88 3.54 431 13.8 2.48 382 12.5 1.18 1.39 432 12.4 1.08 383 15.6 *,

4.28 18.32 433 9.5

-1.82 384 16.5 5.18 26.84 434 9.3

-2.02 385 11.7 0.38 0.14 435 8.4

-2.92 386 9.7

-1.62 2.62 436 7.4

-3.92 387 8.3

-3.02 9.12 437 5.6

-5.72 388 10.6

-0.72 0.52 438 6.2

-5.12 389 10.9

-0.42 0.18 439 9.5

-1.82 390 7.3

-4.02 16.16 440 12.0 0.68 391 11.5 0.18 0.03 441 11.4 0.08 392 14.1 2.78 7.73 442 11.1

-0.22 393 12.5 1.18 1.39 443 17.2 5.88 394 13.2 1.88 3.54 444 10.0

-1.32 395 12.8 1.48 2.19 445 8.5

-2.82 396 9.2

-2.12 4.49 446 10.9

-0.42 397 14.3 2.98 8.88 447 10.8

-0.52 398 11.7 0.38 0.14 448 10.4

-0.92 399 12.6 1.28 1.64 449 12.2 0.88 400 7.0

-4.32 18.66 450 9.6

-1.72 579.7 304.2 520.5 Sum(n)

Sum(n-N)'

Sum(n)

(n-N)2 18.66 0.00 0.05 0.14 1.74 1.49 0.23 0.52 5.38 0.18 1.04 6.35 36.24 31.58 10.37 2.50 0.10 15.36 0.67 6.15 10.11 1.49 0.52 2.82 0.61 0.18 6.86 0.10 6.15 0.96 6.15 1.17 3.31 4.08 8.52 15.36 32.71 26.21 3.31 0.46 0.01 0.05 34.58 1.74 7.95 0.18 0.27 0.85 0.78 2.96 319.2 Sum(n-N)2 PAGE 5 OF 8 A:\\GAEDURCP.WB2

Thuraday,Augu~O~ 1999 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n = pCi/g TOTAL U Number n

(n-N)

(n-N)'

Number n

(n-N) 451 11.2

-0.12 0.01 501 9.0

-2.32 452 13.9 2.58 6.66 502 9.8

-1.52 453 11.0

-0.32 0.10 503 10.6

-0.72 454 11.2

-0.12 0.01 504 14.6 3.28 455 10.3

-1.02 1.04 505 14.5 3.18 456 10.1

-1.22 1.49 506 12.5 1.18 457 8.9

-2.42 5.85 507 8.0

-3.32 458 11.2

-0.12 0.01 508 8.7

-2.62 459 11.2

-0.12 0.01 509 13.0 1.68 460 5.5

-5.82 33.87 510 7.9

-3.42 461 13.0 1.68 2.82 511 11.6 0.28 462 9.1

-2.22 4.93 512 14.8 3.48 463 9.2

-2.12 4.49 513 11.6 0.28 464 11.8 0.48 0.23 514 10.5

-0.82 465 13.4 2.08 4.33 515 11.0

-0.32 466 10.5

-0.82 0.67 516 8.6

-2.72 467 15.6 4.28 18.32 517 9.7

-1.62 468 9.5

-1.82 3.31 518 13.6 2.28 469 5.7

-5.62 31.58 519 8.8

-2.52 470 11.4 0.08 0.01 520 8.3

-3.02 471 10.8

-0.52 0.27 521 13.6 2.28 472 8.9

-2.42 5.85 522 12.7 1.38 473 10.2

-1.12 1.25 523 10.1

-1.22 474 14.6 3.28 10.76 524 6.8

-4.52 475 12.8 1.48 2.19 525 14.1 2.78 476 13.0 1.68 2.82 526 11.4 0.08 477 9.3

-2.02 4.08 527 16.6 5.28 478 10.4

-0.92 0.85 528 10.8

-0.52 479 10.2

-1.12 1.25 529 5.1

-6.22 480 5.8

-5.52 30.47 530 9.6

-1.72 481 12.7 1.38 1.91 531 9.6

-1.72 482 13.0 1.68 2.82 532 11.5 0.18 483 10.7

\\

-0.62 0.38 533 14.3 2.98 484 7.9

-3.42 11.69 534 6.0

-5.32 485 8.4

-2.92 8.52 535 10.5

-0.82 486 10.3

-1.02 1.04 536 7.0

-4.32 487 16.1 4.78 22.85 537 13.0 1.68 488 9.5

-1.82 3.31 538 10.7

-0.62 489 7.8

-3.52 12.39 539 13.5 2.18 490 8.3

-3.02 9.12 540 15.3 3.98 491 9.2

-2.12 4.49 541 13.0 1.68 492 12.0 0.68 0.46 542 16.5 5.18 493 13.2 1.88 3.54 543 15.8 4.48 494 16.1 4.78 22.85 544 19.5 8.18 495 10.3

-1.02 1.04 545 16.2 4.88 496 9.9

-1.42 2.02 546 18.2 6.88 497 9.3

-2.02 4.08 547 10.2

-1.12 498 10.5

-0.82 0.67 548 8.1

-3.22 499 9.2

-2.12 4.49 549 11.1

-0.22 500 7.2

-4.12 16.97 550 8.2

-3.12 531.3 314.2 576.1 (n-N)2 5.38 2.31 0.52 10.76 10.11 1.39 11.02 6.86 2.82 11.69 0.08 12.11 0.08 0.67 0.10 7.40 2.62 5.20 6.35 9.12 5.20 1.91 1.49 20.43 7.73 0.01 27.88 0.27 38.68 2.96 2.96 0.03 8.88 28.30 0.67 18.66 2.82 0.38 4.75 15.84 2.82 26.84 20.07 66.92 23.82 47.34 1.25 10.37 0.05 9.73 505.7 Sum(n)

Sum(n-N)'

Sum(n)

Sum(n-N)2 PAGE 60F 8 A:\\GAEDURCP.W82

Thursday, August 05, 1999 CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G'

• EXPANDED DRAINAGE - SURFACE n = pCi/ I TOTAL U Number n

(n-N)

{n-N)'

' Number n

(n-N)

(n-N)'

551 10.2

-1.12 1.25 601 13.4 2.08 4.33 552 9.7

-1.62 2.62 602 14.1 2.78 7.73 553 11.7 0.38 0.14 603 11.1

-0.22 0.05 554 11.1

-0.22 0.05 604 12.1 0.78 0.61 555 9.7

-1.62 2.62 605 8.8

-2.52 6.35 556 11.1

-0.22 0.05 606 8.5

-2.82 7.95 557 12.4 1.08 1.17

' 607 11.2

-0.12 0.01 558 11.4 0.08 0.01

! 608 8.9

-2.42 5.85 559 16.4 5.08 25.81 609 10.0

-1.32 1.74 560 12.0 0.68 0.46

' 610 11.9 0.58 0.34 561 12.6 1.28 1.64

' 611 9.0

-2.32 5.38 562 12.6 1.28 1.64 612 12.4 1.08 1.17 563 16.0 4.68 21.91 613 12.1 0.78 0.61 564 15.2 3.88 15.06 614 14.6 3.28 10.76 565 13.3 1.98 3.92 615 16.9 5.58 31.14 566 8.2

-3.12 9.73 616 14.1 2.78 7.73 567 10.6

-0.72 0.52 617 14.6 3.28 10.76 568 12.8 1.48 2.19 618 13.3 1.98 3.92 569 11.9 0.58 0.34 619 10.2

-1.12 1.25 570 12.8 1.48 2.19 620 12.9 1.58 2.50 571 11.8 0.48 0.23 621 11.0

-0.32 0.10 572 10.7

-0.62 0.38

' 622 13.0 1.68 2.82 573 11.1

-0.22 0.05 H 623 10.6

-0.72 0.52 574 12.2 0.88 0.78

' 624 12.0 0.68 0.46 575 11.0

-0.32 0.10 625 10.3

-1.02 1.04 576 11.7 0.38 0.14 626 8.3

-3.02 9.12 577 13.7 2.38 5.67 627 11.1

-0.22 0.05 578 11.0

-0.32 0.10

' 628 11.7 0.38 0.14 579 9.9

-1.42 2.02 629 12.4 1.08 1.17 580 12.9 1.58 2.50 630 11.8 0.48 0.23 581 15.5 4.18 17.48 631 20.4 9.08 82.45 582 21.0 9.68 93.71 632 20.4 9.08 82.45 583 15.4

\\ 4.08 16.65 r 633 13.4 2.08 4.33 584 11.3

-0.02 0.00 I

634 12.0 0.68 0.46 585 14.8 3.48 12.11

635 9.3

-2.02 4.08 586 11.3

-0.02 0.00 636 14.2 2.88 8.30 587 10.9

-0.42 0.18 637 13.2 1.88 3.54 588 12.0 0.68 0.46 638 13.6 2.28 5.20 589 11.5 0.18 0.03 639 11.6 0.28 0.08 590 11.3

-0.02 0.00 640 11.6 0.28 0.08 591 9.2

-2.12 4.49 641 14.0 2.68 7.18 592 8.7

-2.62 6.86 642 10.2

-1.12 1.25 593 11.3

-0.02 0.00 643 13.6 2.28 5.20 594 10.8

-0.52 0.27 644 12.8 1.48 2.19 595 10.7

-0.62 0.38 645 14.6 3.28 10.76 596 9.7

-1.62 2.62 646 12.6 1.28 1.64 597 12.9 1.58 2.50 647 13.5 2.18 4.75 598 16.5 5.18 26.84 648 17.1 5.78 33.41 599 14.6 3.28 10.76 649 10.9

-0.42 0.18 600 14.2 2.88 8.30 650 6.9

-4.42 19.53 611.3 308.9 i

618.2 402.9 Sum(n)

Sum(n-N)'

Sum(n)

Sum(n-N)2 PA 7

GE OF8 A:IGAEDURCP.WB2

Thursday, August 05, 1999 CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n = pCi/g TOTAL U Number n

(n*N)

(n-N)'

Number n

(n-N)

(n-N)'

651 10.0

-1.32 1.74 701 0.0 0.00 0.00 652 11.5 0.18 0.03 702 0.0 0.00 0.00 653 8.0

-3.32 11.02 703 0.0 0.00 0.00 654 10.1

-1.22 1.49 704 0.0 0.00 0.00 655 8.6

-2.72 7.40 705 0.0 0.00 0.00 656 8.2

-3.12 9.73 706 0.0 0.00 0.00 657 9.2

-2.12 4.49 707 0.0 0.00 0.00 658 8.9

-2.42 5.85 708 0.0 0.00 0.00 659 10.3

-1.02 1.04 709 0.0 0.00 0.00 660 8.1

-3.22 10.37 710 0.0 0.00 0.00 661 9.2

-2.12 4.49 711 0.0 0.00 0.00 662 10.2

-1.12 1.25

' 712 0.0 0.00 0.00 663 11.0

-0.32 0.10 i 713 0.0 0.00 0.00 664 11.8 0.48 0.23

! 714 0.0 0.00 0.00 665 15.8 4.48 20.07 715 0.0 0.00 0.00 666 14.6 3.28 10.76 716 0.0 0.00 0.00 667 13.1 1.78 3.17 717 0.0 0.00 0.00 668 14.0 2.68 7.18 718 0.0 0.00 0.00 669 4.2

-7.12 50.69 719 0.0 0.00 0.00 670 7.8

-3.52 12.39 720 0.0 0.00 0.00 671 7.8

-3.52 12.39 721 0.0 0.00 0.00 672 7.9

-3.42 11.69 722 0.0 0.00 0.00 673 7.3

-4.02 16.16 723 0.0 0.00 0.00 674 10.1

-1.22 1.49 I:

724 0.0 0.00 0.00 675 7.5

-3.82 14.59 725 0.0 0.00 0.00 676 7.9

-3.42 11.69 726 0.0 0.00 0.00 677 8.2

-3.12 9.73 727 0.0 0.00 0.00 678 8.8

-2.52 6.35 728 0.0 0.00 0.00 679 10.2

-1.12 1.25 729 0.0 0.00 0.00 680 11.1

-0.22 0.05 730 0.0 0.00 0.00 681 10.9

-0.42 0.18 731 0.0 0.00 0.00 682 11.0

-0.32 0.10 732 0.0 0.00 0.00 683 11.8

, 0.48 0.23 733 0.0 0.00 0.00 684 16.8 5.48 30.03 734 0.0 0.00 0.00 685 7.9

-3.42 11.69 735 0.0 0.00 0.00 686 11.0

-0.32 0.10 736 0.0 0.00 0.00 687 13.2 1.88 3.54 737 0.0 0.00 0.00 688 9.0

-2.32 5.38 738 o.o 0.00 0.00 689 9.0

-2.32 5.38 739 0.0 0.00 0.00 690 8.0

-3.32 11.02 740 0.0 0.00 0.00 691 13.2 1.88 3.54 741 0.0 0.00 0.00 692 8.6

-2.72 7.40 742 0.0 0.00 0.00 693 10.0

-1.32 1.74 743 0.0 0.00 0.00 694 9.0

-2.32 5.38 744 0.0 0.00 0.00 695 0.0 0.00 0.00 745 0.0 0.00 0.00 696 0.0 0.00 0.00 746 0.0 0.00 0.00 697 0.0 0.00 0.00 747 0.0 0.00 0.00 698 0.0 0.00 0.00 748 0.0 0.00 0.00 699 0.0 0.00 0.00 749 0.0 0.00 0.00 700 0.0 0.00 0.00 750 0.0 0.00 0.00 440.8 334.6 0.0 0.0 Sum(n)

Sum(n-N)2 Sum(n)

Sum(n-N)'

PAGE 8 OF 8 A:\\GAEDURCP.WB2

Thursday, August 05, 1999 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n = pCi/CJ Th [NAT)

Nl.lmber n

(n-N)

(n,N)'

1 0.7

-0.6 0.4 2

0.8

-0.5 0.3 3

0.7

-0.6 0.4 4

0.7

-0.6 0.4 5

0.8

-0.5 0.3 6

0.9

-0.4 0.2 7

0.9

-0.4 0.2 8

1.0

-0.3 0.1 9

1.1

-0.2 0.1 10 1.0

-0.3 0.1 11 1.1

-0.2 0.1 12 1.0

-0.3 0.1 13 1.1

-0.2 0.1 14 0.9

-0.4 0.2 15 1.3

-0.0 0.0 16 1.0

-0.3 0.1 17 0.9

-0.4 0.2 18 0.9

-0.4 0.2 19 1.0

-0.3 0.1 20 0.7

-0.6 0.4 21 1.2

-0.1 0.0 22 1.6 0.3 0.1 23 1.1

-0.2 0.1 24 1.2

-0.1 0.0 25 1.3

-0.0 0.0 26 1.5 0.2 0.0 27 1.4 0.1 0.0 28 0.9

-0.4 0.2 29 0.9

-0.4 0.2 30 1.0

-0.3 0.1 31 1.0

-0.3 0.1 32 1.2

-0.1 0.0 33 1.0

-0.3 0.1 34 1.2

-0.1 0.0 35 1.2

-0.1 0.0 36 1.0

-0.3 0.1 37 1.0

-0.3 0.1 38 0.7

-0.6 0.4 39 0.9

-0.4 0.2 40 1.1

-0.2 0.1 41 0.8

-0.5 0.3 42 0.8

-0.5 0.3 43 1.1

-0.2 0.1 44 1.4 0.1 0.0 45 0.8

-0.5 0.3 46 1.2

-0.1 0.0 47 1,8 0.5 0.2 48 1.7 0.4 0.1 49 1.4 0.1 0.0 50 1.2

-0.1 0.0 69.3 8.1 69.4 7.2 68.8 4.2 69.5 3.3 69.7 4.0 65.6 2.8 68.0 4.0 70.8 7.3 62.2 1.9 62.7 3.5 67.7 1.2 66.9 1.2 58.9 4.5 o.o 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 total 922.6 60.1 Sum(n)

Sum(n-N)'

A:IGAEDTHCP.WB2 No. of Samples (x) :

694 COUNT TIME: 5 MINUTES Sample Mean (N) = Sum(n) +..,(_.xi--.-....,.~~

Sample Meap {N):

I 1.33 Standard Det,/latJon (Sd) a SQRT ((n-NJ' * (x -1)]

Standard o*viation:

2 Std oev)atlons:

Degree of Fr\\.edom{df).= (x)

• 1 (df)=

I 0.29 0.59 Data listed on Table B-1 1.645 I Area's Aver~ge Level (Aµ)= {N) + (di) x [(Sd)/SQRT(x)J (Aµ)~

GUIDELIN. VALUE:

Acceptable (ev*I: rn pCl/gTh (NAT) pCi/gTh (NAT) pCl/gTh (NATI TABLE B-1 Factors for Comparision of Survey Data with Guidelines (df) 95*A, 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.B12 2.228 28 1.701 11 1.796 2.201 29 1.699 12 1.782 2.179 30 1.697 13 1.771 2.16 40 1.684 14 1.761 2.145 60 1.671 15 1.753 2.131 120 1.658 16 1.746 2.12 400 1.649 17 1.74 2.11 Infinite 1.645 18 1.734 2.101 For values o1 Degrees of Fmadom not listed:

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 Interpolate-between the llste~d-va_lu_e_s_

. -~---~--~-~

1.645 95%

INFINITE is (B)

( df) high value(Z)

(df] low value(Y) 400 is (A) 1.649 95°A.

Desired value(df] (X) 693 Is calcl.llated as follow:

EXP[( (Ln(B)*Ln(A) j + (Z-Y) ).~ ("'X-'-Y.,__) +_Ln_,_(A_,)_.1.......---

~ ---.

The(dl) valuafor{XJ ~,

1.645 PERFORMED BY: L~d":

95%

DATE:

REVIEWED BY: '1J ~ ~ * ~ DATE:

PAGE 1 OF 8

Thursday, August 05, 1999 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n = pCi/g Th (NAT)

Number n

(n-N)

{n-N)'

Number n

(n-N) 51 1.6 0.27 0.07 101 1.3

-0.03 52 1.7 0.37 0.14 102 1.3

-0.03 53 1.0

-0.33 0.11 103 1.1

-0.23 54 0.5

-0.83 0.69 104 0.8

-0.53 55 0.8

-0.53 0.28 105 1.4 0.07 56 1.2

-0.13 0.02 106 1.3

-0.03 57 1.3

-0.03 0.00 107 1.1

-0.23 58 1.3

-0.03 0.00 108 1.3

-0.03 59 0.9

-0.43 0.18 109 0.8

-0.53 60 1.2

-0.13 0.02 110 1.3

-0.03 61 1.2

-0.13 0.02 111 1.0

-0.33 62 1.2

-0.13 0.02 112 1.5 0.17 63 0.9

-0.43 0.18 113 1.5 0.17 64 1.0

-0.33 0.11 114 1.7 0.37 65 1.4 0.07 0.00 115 1.5 0.17 66 1.6 0.27 0.07 116 1.5 0.17 67 1.0

-0.33 0.11 117 1.8 0.47 68 1.7 0.37 0.14 118 1.9 0.57 69 1.5 0.17 0.03 119 1.9 0.57 70 1.3

-0.03 0.00 120 2.0 0.67 71 1.3

-0.03 0.00 121 1.8 0.47 72 1.7 0.37 0.14 122 0.8

-0.53 73 1.7 0.37 0.14 123 1.1

-0.23 74 1.8 0.47 0.22 124 1.2

-0.13 75 1.5 0.17 0.03 125 1.3

-0.03 76 1.8 0.47 0.22 126 1.3

-0.03 77 2.0 0.67 0.45 127 0.6

-0.73 78 1.3

-0.03 0.00 128 1.0

-0.33 79 1.3

-0.03 0.00 129 1.3

-0.03 80 1.4 0.07 0.00 130 1.1

-0.23 81 0.4

-0.93 0.86 131 0.8

-0.53 82 1.1

-0.23 0.05 132 0.8

-0.53 83 1.4

\\

0.07 0.00 133 1.4 0.07 84 1.4 0.07 0.00 134 1.9 0.57 85 1.0

-0.33 0.11 135 1.8 0.47 86 0.8

-0.53 0.28 136 1.6 0.27 87 1.2

-0.13 0.02 137 1.5 0.17 88 0.9

-0.43 0.18 138 1.3

-0.03 89 1.5 0.17 0.03 139 1.7 0.37 90 2.0 0.67 0.45 140 1.5 0.17 91 1.4 0.07 0.00 141 2.0 0.67 92 1.7 0.37 0.14 142 1.9 0.57 93 1.6 0.27 0.07 143 1.9 0.57 94 2.0 0.67 0.45 144 1.7 0.37 95 1.9 0.57 0.33 145 2.2 0.87 96 1.7 0.37 0.14 146 1.3

-0.03 97 1.9 0.57 0.33 147 1.2

-0.13 98 2.0 0.67 0.45 148 1.2

-0.13 99 2.2 0.87 0.76 149 1.2

-0.13 100 1.1

-0.23 0.05 150 1.0

-0.33 69.3 8.1 69.4 Sum(n)

Sum(n-N)2 Sum(n)

PAGE 2 OF 8 A:\\GAEDTHCP.WB2 (n-N)2 0.00 0.00 0.05 0.28 0.00 0.00 0.05 0.00 0.28 0.00 0.11 0.03 0.03 0.14 0.03 0.03 0.22 0.33 0.33 0.45 0.22 0.28 0.05 0.02 0.00 0.00 0.53 0.11 0.00 0.05 0.28 0.28 0.00 0.33 0.22 0.07 0.03 0.00 0.14 0.03 0.45 0.33 0.33 0.14 0.76 0.00 0.02 0.02 0.02 0.11 7.2 Sum(n-N)'

Thursday, August 05, 1999 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n = pCi/g Th (NAT)

Number n

(n-Nl (n-N)2 Number n

(n-N) 151 1.0

-0.33 0.11 201 1.2

-0.13 152 1.2

-0.13 0.02 202 1.2

-0.13 153 1.1

-0.23 0.05 203 1.4 0.07 154 1.1

-0.23 0.05 204 1.6 0.27 155 1.2

-0.13 0.02 205 1.9 0.57 156 1.2

-0.13 0.02 206 1.7 0.37 157 1.7 0.37 0.14 207 1.6 0.27 158 1.6 0.27 0.07 208 1.3

-0.03 159 1.8 0.47 0.22 209 1.2

-0.13 160 1.9 0.57 0.33 210 1.0

-0.33 161 1.7 0.37 0.14 211 1.1

-0.23 162 1.5 0.17 0.03 212 1.2

-0.13 163 1.7 0.37 0.14 213 1.3

-0.03 164 1.8 0.47 0.22 214 1.2

-0.13 165 1.7 0.37 0.14 215 1.2

-0.13 166 1.6 0.27 0.07 216 1.2

-0.13 167 1.7 0.37 0.14 217 1.3

-0.03 168 1.5 0.17 0.03 218 1.2

-0.13 169 1.1

-0.23 0.05 219 1.2

-0.13 170 1.2

-0.13 0.02 220 1.2

-0.13 171 1.3

-0.03 0.00 221 1.3

-0.03 172 1.1

-0.23 0.05 222 1.2

-0.13 173 0.9

-0.43 0.18 223 1.3

-0.03 174 1.3

-0.03 0.00 224 1.1

-0.23 175 1.4 0.07 0.00 225 1.6 0.27 176 1.0

-0.33 0.11 226 1.4 0.07 177 1.1

-0.23 0.05 227 2.0 0.67 178 0.9

-0.43 0.18 228 1.6 0.27 179 1.3

-0.03 0.00 229 1.8 0.47 180 1.7 0.37 0.14 230 1.5 0.17 181 1-,2

-0.13 0.02 231 1.8 0.47 182 1.8 0.47 0.22 232 1.7 0.37 183 1.8 '

0.47 0.22 233 1.4 0.07 184 1.7 0.37 0.14 234 1.2

-0.13 185 1.3

-0.03 0.00 235 1.3

-0.03 186 1.7 0.37 0.14 236 1.5 0.17 187 1.6 0.27 0.07 237 1.2

-0.13 188 1.3

-0.03 0.00 238 1.3

-0.03 189 1.3

-0.03 0.00 239 1.4 0.07 190 1.2

-0.13 0.02 240 1.4 0.07 191 1.6 0.27 0.07 241 1.3

-0.03 192 1.3

-0.03 0.00 242 1.5 0.17 193 1.4 0.07 0.00 243 1.0

-0.33 194 1.3

-0.03 0.00 244 1.3

-0.03 195 1.4 0.07 0.00 245 1.1

-0.23 196 1.2

-0.13 0.02 246 1.1

-0.23 197 0.6

-0.73 0.53 247 1.7 0.37 198 1.3

-0.03 0.00 248 1.7 0.37 199 1.3

-0.03 0.00 249 1.9 0.57 200 1.2

-0.13 0.02 250 1.7 0.37 68.8 4.2 69.5 Sum{n)

Surn(n-N)2 Sum(n)

PAGE 3 OF 8 A:\\GAEDTHCP.WB2 (n-N~2 0.02 0.02 0.00 0.07 0.33 0.14 0.07 0.00 0.02 0.11 0.05 0.02 0.00 0.02 0.02 0.02 0.00 0.02 0.02 0.02 0.00 0.02 0.00 0.05 0.07 0.00 0.45 0.07 0.22 0.03 0.22 0.14 0.00 0.02 0.00 0.03 0.02 0.00 0.00 0.00 0.00 0.03 0.11 0.00 0.05 0.05 0.14 0.14 0.33 0.14 3.3 Sum(n-N)'

Thursday, August 05, 1999 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE c*1 Th T) n = p I ~

(NA Number n

(n-Nl (n-N)'

Number n

(n-N) 251 1.2

-0.13 0.02 301 1.2

-0.13 252 1.4 0.07 0.00 302 1.0

-0.33 253 2.1 0.77 0.59 303 1.8 0.47 254 1.5 0.17 0.03 304 1.4 0.07 255 1.5 0.17 0.03 305 0.9

-0.43 256 1.3

-0.03 0.00 306 1.3

-0.03 257 1.2

-0.13 0.02 307 1.3

-0.03 258 1.0

-0.33 0.11 308 1.1

-0.23 259 1.2

-0.13 0.02 309 1.2

-0.13 260 1.3

-0.03 0.00 310 1.2

-0.13 261 1.3

-0.03 0.00 311 1.2

-0.13 262 1.2

-0.13 0.02 312 1.1

-0.23 263 1.0

-0.33 0.11 313 1.2

-0.13 264 1.2

-0.13 0.02 314 1.5 0.17 265 1.0

-0.33 0.11 315 1.2

-0.13 266 1.1

-0.23 0.05 316 1.5 0.17 267 1.2

-0.13 0.02 317 1.3

-0.03 268 1.3

-0.03 0.00 318 1.7 0.37 269 1.4 0.07 0.00 319 1.7 0.37 270 2.0 0.67 0.45 320 1.4 0.07 271 1.4 0.07 0.00 321 1.5 0.17 272 1.7 0.37 0.14 322 1.6 0.27 273 1.7 0.37 0.14 323 1.6 0.27 274 1.4 0.07 0.00 324 1.1

-0.23 275 1.7 0.37 0.14 325 1.1

-0.23 276 1.4 0.07 0.00 326 1.3

-0.03 277 2.0 0.67 0.45 327 1.3

-0.03 278 1.1

-0.23 0.05 328 1.0

-0.33 279 1.5 0.17 0.03 329 1.2

-0.13 280 1.1

-0.23 0.05 330 1.1

-0.23 281 1~2

-0.13 0.02 331 0.8

-0.53 282 0.9

-0.43 0.18 332 0.9

-0.43 283 1.3

-0.03 0.00 333 1.3

-0.03 284 1.3

-0.03 0.00 334 1.3

-0.03 285 1.2

-0.13 0.02 335 1.0

-0.33 286 1.1

-0.23 0.05 336 1.3

-0.03 287 1.3

-0.03 0.00 337 1.1

-0.23 288 1.4 0.07 0.00 338 1.3

-0.03 289 1.2

-0.13 0.02 339 1.7 0.37 290 1.4 0.07 0.00 340 1.5 0.17 291 1.3

-0.03 0.00 341 1.7 0.37 292 1.3

-0.03 0.00 342 1.3

-0.03 293 1.7 0.37 0.14 343 1.7 0.37 294 1.7 0.37 0.14 344 1.7 0.37 295 1.8 0.47 0.22 345 1.3

• 0.03 296 1.7 0.37 0.14 346 1.2

-0.13 297 1.6 0.27 0.07 347 1.4 0.07 298 1.4 0.07 0.00 348 1.2

• 0.13 299 1.6 0.27 0.07 349 1.5 0.17 300 1.9 0.57 0.33 350 1.4 0.07 69.7 4.0 65.6 Sum(n)

Sum(n-N)'

Sum(n)

PAGE4 OF 8 A:\\GAEDTHCP.WB2 ln-Nl' 0.02 0.11 0.22 0.00 0.18 0.00 0.00 0.05 0.02 0.02 0.02 0.05 0.02 0.03 0.02 0.03 0.00 0.14 0.14 0.00 0.03 0.07 0.07 0.05 0.05 0.00 0.00 0.11 0.02 0.05 0.28 0.18 0.00 0.00 0.11 0.00 0.05 0.00 0.14 0.03 0.14 0.00 0.14 0.14 0.00 0.02 0.00 0.02 0.03 0.00 2.8 Surn(n-N)'

Thursday, August 05, 1999 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE.

AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n = pCi/g Th (NAT)

Number n

(n-N)

(n-N)1 Number n

(n-N) 351 1.4 0.00 0.00 401 1.0

-0.33 352 1.6 0.27 0.07 402 1.0

-0.33 353 1.5 0.17 0.03 403 1.2

-0.13 354 2.0 0.67 0.45 404 1.0

-0.33 355 1.1

-0.23 0.05 405 1.2

-0.13 356 1.2

-0.13 0.02 406 1.3

-0.03 357 1.3

-0.03 0.00 407 1.2

-0.13 358 1.3

-0.03 0.00 408 1.4 0.07 359 0.9

-0.43 0.18 409 1.0

-0.33 360 0.9

-0.43 0.18 410 1.0

-0.33 361 1.4 0.07 0.00 411 1.9 0.57 362 1.5 0.17 0.03 412 1.9 0.57 363 1.5 0.17 0.03 413 2.0 0.67 364 1.5 0.17 0.03 414 2.1 0.77 365 1.3

-0.03 0.00 415 2.0 0.67 366 1.5 0.17 0.03 416 1.5 0.17 367 1.6 0.27 0.07 417 1.2

-0.13 368 2.0 0.67 0.45 418 1.6 0.27 369 1.3

-0.03 0.00 419 1.4 0.07 370 1.1

-0.23 0.05 420 1.3

-0.03 371 1.2

-0.13 0.02 421 1.5 0.17 372 1.3

-0.03 0.00 422 1.2

-0.13 373 1.3

-0.03 0.00 423 1.5 0.17 374 1.1

-0.23 0.05 424 1.0

-0.33 375 1.6 0.27 0.07 425 0.9

-0.43 376 1.5 0.17 0.03 426 1.3

-0.03 377 2.0 0.67 0.45 427 1.5 0.17 378 1.0

-0.33 0.11 428 1.2

-0.13 379 1.2

-0.13 0.02 429 1.1

-0.23 380 1.1

-0.23 0.05 430 1.1

-0.23 381 0.9

-0.43 0.18 431 1.1

-0.23 382 1.1

-0.23 0.05 432 1.4 0.07 383 1.1

-0.23 0.05 433 2.0 0.67 384 1.1

-0.23 0.05 434 2.3 0.97 385 1.4 0.07 0.00 435 2.0 0.67 386 1.0

-0.33 0.11 436 2.1 0.77 387 2.0 0.67 0.45 437 2.2 0.87 388 1.7 0.37 0.14 438 2.0 0.67 389 1.6 0.27 0.07 439 1.2

-0.13 390 1.7 0.37 0.14 440 1.3

-0.03 391 1.6 0.27 0.07 441 1.2

-0.13 392 1.4 0.07 0.00 442 1.1

-0.23 393 1.3

-0.03 0.00 443 1.1

-0.23 394 1.3

-0.03 0.00 444 1.2

-0.13 395 1.4 0.07 0.00 445 1.5 0.17 396 1.5 0.17 0.03 446 1.2

-0.13 397 1.1

-0.23 0.05 447 1.3

-0.03 398 1.2

-0.13 0.02 448 1.4 0.07 399 1.4 0.07 0.00 449 1.5 0.17 400 1.0

-0.33 0.11 450 1.2

-0.13 68.0 4.0 70.8 Sum(n)

Sum(n-N)'

Sum(n)

(n-N)2 0.11 0.11 0.02 0.11 0.02 0.00 0.02 0.00 0.11 0.11 0.33 0.33 0.45 0.59 0.45 0.03 0.02 0.07 0.00 0.00 0.03 0.02 0.03 0.11 0.18 0.00 0.03 0.02 0.05 0.05 0.05 0.00 0.45 0.94 0.45 0.59 0.76 0.45 0.02 0.00 0.02 0.05 0.05 0.02 0.03 0.02 0.00 0.00 0.03 0.02 7.3 Sum(n-N)i PAGE 5 OF 8 A:\\GAEDTHCP.WB2

Thursday.August 05, 1999 CIMARRON CORPORATION -CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' a EXPANDED DRAINAGE - SURFACE n = pCi/g Th (NAT)

Number n

(n*N}

(n-N)2 Number n

(n-N) 451 1.2

-0.13 0.02 501 1.3

-0.03 452 1.2

-0.13 0.02 502 1.3

-0.03 453 1.3

-0.03 0.00 503 1.1

-0.23 454 1.5 0.17 0.03 504 1.3

-0.03 455 1.3

-0.03 o.oo 505 1.2

-0.13 456 1.5 0.17 0.03 506 1.3

-0.03 457 1.4 0.07 0.00 507 1.5 0.17 458 1.2

-0.13 0.02 508 1.0

-0.33 459 1.4 0.07 0.00 509 1.0

-0.33 460 1.4 0.07 0.00 510 1.3

-0.03 461 1.3

-0.03 0.00 511 1.2

-0.13 462 1.1

-0.23 0.05 512 1.0

-0.33 463 1.2

-0.13 0.02 513 1.5 0.17 464 1.0

-0.33 0.11 514 1.3

-0.03 465 1.0

-0.33 0.11 515 1.1

-0.23 466 1.3

-0.03 o.oo 516 1.2

-0.13 467 1.3

-0.03 0.00 517 1.4 0.07 468 1.2

-0.13 0.02 518 2.1 0.77 469 1.3

-0.03 0.00 519 1.4 0.07 470 1.3

-0.03 0.00 520 1.4 0.07 471 1.0

-0.33 0.11 521 1.3

-0.03 472 1.0

-0.33 0.11 522 0.9

-0.43 473 0.9

-0.43 0.18 523 1.0

-0.33 474 1.3

-0.03 0.00 524 1.0

-0.33 475 1.2

-0.13 0.02 525 1.1

-0.23 476 1.3

-0.03 0.00 526 1.0

-0.33 477 1.2

-0.13 0.02 527 1.8 0.47 478 1.1

-0.23 0.05 528 1.2

-0.13 479 1.2

-0.13 0.02 529 0.9

-0.43 480 1.6 0.27 0.07 530 0.9

-0.43 481 1-.4 0.07 0.00 531 1.3

-0.03 482 1.3

-0.03 0.00 532 1.3

-0.03 483 1.4 0.07 0.00 533 1.0

-0.33 484 1.0

-0.33 0.11 534 1.0

-0.33 485 0.7

-0.63 0.40 535 0.8

-0.53 486 1.1

-0.23 0.05 536 1.0

-0.33 487 1.2

-0.13 0.02 537 1.2

-0.13 488 1.4 0.07 0.00 538 1.2

-0.13 489 1.2

-0.13 0.02 539 1.5 0.17 490 1.3

-0.03 0.00 540 1.3

-0.03 491 1.1

-0.23 0.05 541 1.4 0.07 492 1.3

-0.03 o.oo 542 1.5 0.17 493 1.1

-0.23 0.05 543 1.3

-0.03 494 1.4 0.07 0.00 544 1.2

-0.13 495 1.5 0.17 0.03 545 1.4 0.07 496 1.2

-0.13 0.02 546 1.4 0.07 497 1.1

-0.23 0.05 547 1.9 0.57 498 1.5 0.17 0.03 548 1.4 0.07 499 1.4 0.07 0.00 549 1.1

~0.23 500 1.4 0.07 0.00 550 1.5 0.17 62.2 1.9 62.7 (n-N)'

0.00 0.00 0.05 0.00 0.02 0.00 0.03 0.11 0.11 0.00 0.02 0.11 0.03 0.00 0.05 0.02 0.00 0.59 0.00 0.00 0.00 0.18 0.11 0.11 0.05 0.11 0.22 0.02 0.18 0.18 0.00 0.00 0.11 0.11 0.28 0.11 0.02 0.02 0.03 0.00 0.00 0.03 0.00 0.02 0.00 0.00 0.33 0.00 0.05 0.03 3.5 Sum(n)

Sum(n-N)2 Sum(n)

Sum(n-N)t PAGE 6 OF 8 A:\\GAEDTHCP.WB2

I hursday, August U5, 1999 CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G' - EXPANDED DRAINAGE - SURFACE n = pCi/g Th (NAT)

Number n

(n-N)

(n-N)2 Number n

(n-N)

(n-N)2 551 1.3

• 0.03 0.00 601 1.3

.o.03 0.00 552 1.7 0.37 0.14 602 1.2

-0.13 0.02 553 1.3

• 0.03 0.00 i 603 1.5 0.17 0.03 554 1.4 0.07 0.00

! 604 1.2

.Q.13 0.02 555 1.7 0.37 0.14

! 605 1.3

-0.03 0.00 I

556 1.1

-0.23 0.05 606 1.4 0.07 0.00 557 1.3

.Q.03 0.00 607 1.2

-0.13 0.02 558 1.3

.Q.03 0.00 608 1.5 0.17 0.03 559 1.1

-0.23 0.05 609 1.5 0.17 0.03 560 1.2

.Q.13 0.02 610 1.4 0.07 0.00 561 1.2

-0.13 0.02 611 1.3

-0.03 0.00 562 1.3

-0.03 0.00 612 1.4 0.07 0.00 563 1.5 0.17 0.03 613 1.4 0.07 0.00 564 1.3

-0.03 0.00

! 614 1.1

-0.23 0.05 565 1.4 0.07 0.00 i 615 1.5 0.17 0.03 566 1.3

.Q.03 0.00 i 616 1.5 0.17 0.03 567 1.3

-0.03 0.00 I 617 1.2

-0.13 0.02 568 1.2

.Q.13 0.02 i 618 1.2

-0.13 0.02 569 1.4 0.07 0.00 l 619 1.4 0.07 0.00 570 1.3

• 0.03 0.00

• 620 1.5 0.17 0.03 571 1.2

-0.13 0.02

. 621 1.4 0.07 0.00 572 1.3

-0.03 0.00

622 1.4 0.07 0.00 573 1.5 0.17 0.03

623 1.1

-0.23 0.05 574 1.7 0.37 0.14

• . 624 1.3

.Q.03 0.00 575 1.3

-0.03 0.00

• 625 1.4 0.07 0.00 576 1.0

-0.33 0.11 626 1.6 0.27 0.07 577 1.5 0.17 0.03 627 1.3

-0.03 0.00 578 1.3

.Q.03 0.00 i 628 1.2

-0.13 0.02 579 1.5 0.17 0.03 629 1.3

-0.03 0.00 580 1.4 0.07 0.00 630 1.4 0.07 0.00 581 1.4' 0.07 0.00 631 1.3

-0.03 0.00 582 1.3

• 0.03 0.00

• 632 1.3

-0.03 0.00 583 1.2

\\-0.13 0.02 633 1.2

-0.13 0.02 584 1.2

-0.13 0.02 634 2.0 0.67 0.45 585 1.2

-0.13 0.02 635 1.5 0.17 0.03 586 1.3

• 0.03 0.00

. 636 1.3

-0.03 0.00 587 1.4 0.07 0.00

. 637 1.3

-0.03 0.00 588 1.4 0.07 0.00 638 1.3

-0.03 0.00 589 1.6 0.27 0.07 639 1.4 0.07 0.00 590 1.1

-0.23 0.05 640 1.4 0.07 0.00 591 1.5 0.17 0.03 641 1.3

-0.03 0.00 592 1.4 0.07 0.00 642 1.4 0.07 0.00 593 1.4 0.07 0.00 643 1.3

-0.03 0.00 594 1.5 0.17 0.03 644 1.2

-0.13 0.02 595 1.4 0.07 0.00 645 1.2

-0.13 0.02 596 1.4 0.07 0.00 646 1.2

-0.13 0.02 597 1.4 0.07 0.00 647 1.4 0.07 0.00 598 1.6 0.27 0.07 648 1.2

.Q.13 0.02 599 1.2

.Q.13 0.02 649 1.3

.Q.03 0.00 600 1.5 0.17 0.03 650 1.0

-0.33 0.11 67.7 1.2 66.9 1.2 Sum(n)

Sum(n-N)2 Sum(n)

Sum(n-N)2 PAGE70F8 A:\\GAEDTHC P.WB2

Thursday, August 05, 1999 CIMARRON CORPORATION

• CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED AREA 'G'

• EXPANDED DRAINAGE - SURFACE n = pCi/g Th (NAT)

Number n

(n-N)

(n-N)2 Number n

(n-N)

(n-N)2 651 1.0

-0.33 0.11 701 0.0 0.00 0.00 652 1.0

-0.33 0.11 702 0.0 0.00 0.00 653 1.2

-0.13 0.02 703 0.0 0.00 0.00 654 1.3

-0.03 0.00 704 0.0 0.00 0.00 655 1.2

-0.13 0.02 705 0.0 0.00 0.00 656 1.2

-0.13 0.02 706 0.0 0.00 0.00 657 1.1

-0.23 0.05 707 0.0 0.00 0.00 658 1.1

-0.23 0.05 708 0.0 0.00 0.00 659 0.9

-0.43 0.18 709 0.0 0.00 0.00 660 1.3

-0.03 0.00 710 0.0 0.00 0.00 661 1.1

-0.23 0.05 711 0.0 0.00 0.00 662 1.3

-0.03 0.00 712 0.0 0.00 0.00 663 0.9

-0.43 0.18 713 0.0 0.00 0.00 664 0.9

-0.43 0.18 714 0.0 0.00 0.00 665 1.0

-0.33 0.11 715 0.0 0.00 0.00 666 1.2

-0.13 0.02 716 0.0 0.00 0.00 667 1.3

-0.03 0.00 717 0.0 0.00 0.00 668 1.0

-0.33 0.11 718 0.0 0.00 0.00 669 1.5 0.17 0.03 719 0.0 0.00 0.00 670 1.4 0.07 0.00 720 0.0 0.00 0.00 671 1.4 0.07 0.00 721 0.0 0.00 0.00 672 1.4 0.07 0.00 722 0.0 0.00 0.00 673 1.4 0.07 0.00 723 0.0 0.00 0.00 674 1.2

-0.13 0.02 724 0.0 0.00 0.00 675 1.2

-0.13 0.02 725 0.0 0.00 0.00 676 1.5 0.17 0.03 726 0.0 0.00 0.00 677 1.6 0.27 0.07 727 0.0 0.00 0.00 678 1.5 0.17 0.03 728 0.0 0.00 0.00 679 1.3

-0.03 0.00 729 0.0 0.00 0.00 680 1.4 0.07 0.00 730 0.0 0.00 0.00 681 1.4' 0.07 0.00 731 0.0 0.00 0.00 682 1.5 0.17 0.03 732 0.0 0.00 0.00 683 1.5

\\ 0.17 0.03 733 0.0 0.00 0.00 684 1.4 0.07 0.00 734 0.0 0.00 0.00 685 1.7 0.37 0.14 735 0.0 0.00 0.00 686 2.4 1.07 1.15 736 0.0 0.00 0.00 687 1.9 0.57 0.33 737 0.0 0.00 0.00 688 1.6 0.27 0.07 738 0.0 0.00 0.00 689 1.0

-0.33 0.11 739 0.0 0.00 0.00 690 2.0 0.67 0.45 740 0.0 0.00 0.00 691 2.0 0.67 0.45 741 0.0 0.00 0.00 692 1.7 0.37 0.14 742 0.0 0.00 0.00 693 1.0

-0.33 0.11 743 0.0 0.00 0.00 694 1.0

-0.33 0.11 744 0.0 0.00 0.00 695 0.0 0.00 0.00 745 0.0 0.00 0.00 696 0.0 0.00 0.00 746 0.0 0.00 0.00 697 0.0 0.00 0.00 747 0.0 0.00 0.00 698 0.0 0.00 0.00 748 0.0 0.00 0.00 699 0.0 0.00 0.00 749 0.0 0.00 0.00 700 0.0 0.00 0.00 750 0.0 0.00 0.00 58.9 4.5 0.0 0.0 Sum(n)

Sum(n-N)'

Sum(n)

Sum(n-N)2 PAGE 8 OF 8 A:\\GAEDTHCP.WB2

830 840 850 860 870 880 890 900 91 0 920 930 940 950 960 970 700 I

I I

r

(

700

/

I I SUB ARE G

I I

690 I

I 680 I

680 670 670 660 660 950 4.8

\\

650

+

650 12.9 +

\\

640

\\

640

\\

630

\\

630

\\

620 -

)

620

/_.,,/

610 I

610 I

/

I I

~

I 600 RESERVOIR f3

/

/

SPILLWAY I.

590

/~o/

590 I

580 I

---.c_

580 I

/

I 920 930 940 950 960 970 I

I 570

/

~

SAMP1.£S ARE IN PICO-CURIES PER CRAM U~IUM (pCi/g U).

,, /

560

/

CIMARRON GAMMA SPEC SOl COUNTER

., //

SITE SOIL BACKGROUND OF -4 pCi/ g U, NOT SUBTRACTED.

/

R+ HIT ROCK, NO SAMPLE TAKEN.

550 I

20 0

20Q I

NORTH 540 I.

S C A L E I N ~ETERS 4~

I

@) CIMARRON CORPORATION 530 CIMARRON FACILITY PHASE II -

SUB-AREA G I I RESERVOIR /13 SPILLWAY DATA

/

I I

SOIL SA~PLE RESULTS ALIQUOT: 0-6" B'Y: Aff"O B'Y:

°'IE ORWN.

O,,.lE 8/2/99 sou REV.

OCSCRIPTlON BY JE f,,S SHOWN JOO NO.

DRAWN: NO. 99POSGR3SS-0 REV.

0 DRAWING ISSUED.

JL 10 18 99 0

... \\CIM\\ SUBAREAG99\\DRA1NAGE\\ R£S3-SPILLWAY\\99PODCEXPSS

830 84-0 700 680 670 660 650 640 630 620 610 590 580 570 560 550 54-0 530 REV.

850 860 870

---950 RESERVOIR #3 SPILLWAY DESCRIPTION 880

/

5.4 + -

890 SUB I

/

900 910 920 I

/ -I t'

I f

/

I I

AREi G I

/

I I

)

/

/

I

\\ (

\\

l I

/ -

/

930 94-0 950 960 970 I

I 700 690 I

680 670 660 650 64-0 630

)

620 I )

/

,,/

610 600

/~o/ "° DATE 920 930 94-0 950 960 970 lfQlli.;

SAMPLES ARE IN PICO-CURIES PER CRAM URANIUM {pCi/g U).

CIMARRON GAMMA SPEC SOIL COUNTER SITE SOIL BACK GROUND OF 4 pCi / g U. NOT SU BTIW:TED.

R+ HIT ROCK, NO SAMPl.£ TAKEN.

20 0

SCALE IN 20 "-

~OR~

METERS 4~

CIMARRON CORPORATION CIMARRON FACILITY PHASE II -

SUB-AREA G RESERVOIR #3 SPILLWAY DATA SOIL SAMPLE RESULTS ALIQUOT: 6"-1' OR'IIN.

BY JE DATE SCAI.£ 8/2/99 AS SHOWN DRAlffiG NO.

99POSGR3SS-1 REV. 0

... \\ CIM\\SU8AREAG99\\DRAINAGE\\RES3-SP1LLWAY\\99P0DGEXPSS 580

830 840 850 860 870 880 890 700

/

680 670 660 5.6+

9.0 +

J

~

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,/ ',',:

650

--950 640 630 900 910 I

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660 I

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12.4 7.5... +

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/.I

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/

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920 930 940 950 960 970 NOTES:

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

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

R+ HIT ROCK, NO SAMPLE TAKEN.

20 0

20"'

~ORTH~

SCALE IN METERS 4~

~

CIMARRON CORPORATION CIMARRON FACILITY PHASE II -

SUB-AREA G RESERVOIR #3 SPILLWAY DATA SOIL SAMPLE RESULTS ALIQUOT: 1 '-2' ORWN.

BY JE O,.TE

~

8/2/99 AS SHOWN 580 REV.

0 DRAWING NO.

99POSGR3SS-2 1----1--,-,---,--...,..,..,.-=-----------+--=-+-=+/---+-,,.....--+-,--,'7"':"T,..,.iJOB NO.

0 DRAWING ISSUED.

JE WR JL 10 18 99

... \\CIM\\SUBAREAG99\\DRA1NAGE\\RES3-SP1LLWA't'\\99PODGEXPSS

8.30 840 850 860 870 880 890

~00 91 0 700

/

/

680 670 660 650 6.7 +- _J 640 I

I I I I

I I

\\

920 9.30 I

I I

I J

(

940 950 960 970 700 690 680 670 660 650 640

/

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---

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- ----_____.,/ 9 4

/

620

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/

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-,/----._

590 580 570 560 550

/

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I J

I I REV.

DESCRIPTION BY: CK'O BY: N'P'O BY:

Cl,\\lE 620

/

610 600

/

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920 9.30 940 950 960 970 l!QliS; SAMPLES ARE IN PICO-CURIES PER GRAM URANIUM (pCi/g U).

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

R+ HIT ROCK, NO SAMPLE TAKEN.

20 0

SCALE I N 20~

~OR~

METERS 4~

CIMARRON CORPORATION CIMARRON FACILITY PHASE II -

SUB-AREA G RESERVOIR f/3 SPILLWAY DATA SOIL SAMPLE RESULTS ALIQUOT: 2' -3' ORWN.

BY JE o,t.TE SOU 8/2/99 A5 SHOWN 580 0

DRAWING ISSUED.

---

+--+--...__1-----l---lJOB NO.

JE WR JL 10 18 99 ORAffl: NO.

99POSGR3SS-3 REV.

0

... \\CIM\\SUBAR[AG99\\DRAJNAGE\\RES.3-SPILLWAY\\99P0DGEXPSS

830 840 850 860 870 880 890 910 700

/

/

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I I:

680 670 660

--950 650

/

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9.J I

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//6.9+

/(

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/

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590 580 570 560 550 540 530 REV.

RESERVOIR #3 SPIUWAY DESCRIPTION 8.7 8.5 ++

I 920

\\ \\

930 I

)

)

,/

940 950 960 970 700 690 680 670 660 650 640 6.30 620 610 600 L ::_o/

590 580 920 930 940 950 960 970

!!QI.E.s.;

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

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

R+ HIT ROCK, NO SAMPLE TAKEN.

20 0

SCALE IN 20"'

~ORTH" METERS 4~

~

CIMARRON CORPORATION CIMARRON FACILITY PHASE II -

SUB-AREA G RESERVOIR #3 SPILLWAY DATA SOIL SAMPLE RESULTS ALIQUOT: 3' -4' DRY!tl.

BY JE DATE

$CAI.£ 8/2/99 AS SHOWN DRAWING HO.

99POSGR3SS-4 REV. 0

... \\C1M\\SUBAREAG99\\DRAJNAGE\\RES3-SP1LLWAY\\99PODGEXPSS

650 645 810 815 820 825 830 640 700 700 SUB-AREA G 635 695 1A 695 2A 3A 630 CONCRETE AREA 690 690

/

625 DRAINAGE

(

CENTERLINE 685 685 620 680 680 810 815 820 825 830 615 610 875 880 SUB-AREA G

+

+

r ROAO

_/ ----

885

+

+

CONCRETE AREA

+

+

+

DESCR1P110N 890

+

+

+

+

895 25 24 23 22 21 20 D

13 17 I

/ +

900 905 910

+

r ORAINAGE y

C~NTERLINE

+

+

I I

+

I NOTES:

+

SOIL SAWPLE LOCATIONS 5

0 S C A L E I N ME T E RS

@) CIMARRON CORPORATION CIMARRON FACILITY PHASE II -

SUB-AREA G CONCRETE AREAS 8'1': a<D BY N'P'O 8'1':

D\\lt

~

- JE

~TE SCALE 10/ 11/ 99 AS SHOWN DRAWING NO.

99P0SGCONC-O RE.V.

0 1---+--- --- --- ------------

-+---......,JOB I<<>.

0 DRAWING ISSUED.

JE HN JL O 18 99

... \\CIM\\ SU8AREAG99\\ CONCRffi\\99SGCONC 650 645 640 635 630 625 620 615

860 870 880 to I

.70

+10.0 I I SUB-AREA

+6.0 660

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a.i I

5.0 I

4.8+

I 5.0 650 12.9+

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+

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17 1 5.0,

9.6 640

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7.3+

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• 620 9.5+

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/

ROAD 8.8+ -~

a'i. I

- --- ~

25.1

+4.5 610 600 ---t,................................................. ~

590 REV.

DESCRIPTION 0 DRAWING ISSUED.

JE WR 900 910 920

CENTE LINE 6.0 6.0 4.0 900 NOTES:

910 920 SAMPLES ARE IN PICO-CURIES PER GRAM URANIUM (pCi/ g U).

Clt.lARRON GAt.1MA SPEC SOIL COUNTER SITE SOIL BACKGROUND OF 4 pCi/ g U, NOT SUBTRACTED.

X.X +

EXPANDED DRAINAGE WAY SOIL SAMPLE VALUE X.X +

RESERVOIR #3 SPILLWAY SOIL SAt.1PLE VALUE 10 0

10 "-

~ ORTH~

SCALE IN METERS 4ai,.

~

CIMARRON CORPORATION CIMARRON FACILITY PHASE II -

SUB-AREA G RESERVOIR #3 SPILLWAY CONCRETE DATA SURFACE SOIL SAMPLE RESULTS JE DATE SCALE 8/2/99 AS SHOWN DRAWING NO.

99P0SGSWSS-O REV. 0

... \\ CIM\\ SUBAREAG99\\DRAINAGE\\99SPILLDRAIN 670 660 650 640 630 620

3" LN GRID DETECT CIMA~ CORPORATION Cl~ON FACILITY AFFECTED SUB-AREA 'G'

• EXPANDED DRAINAGE WAY

• DEPTH RESERVOIR #3 SPILLWAY MICRO MICRO pCi/g R'

R' 0 - 6" 6" - 1' 1' - 2' 2' - 3' QA. 8 R

3' - 4' NUMBER C.P.M.

SURF 1 METER Total-U Th (Nat)

Total-U Th {Nat)

Total-U Th (Nat)

Total-U Th (Nat)

Total-Li Th (Nat) 1 879 E -

613 N

3110 10 8

7.1 1.0 13.8 2

880 E -

614 N 3260 9

10,

8.8 1.0 6.6 3

881 E -

655 N

5510 10

,* 10 8.7 0.9 7.2 4

881.5 E -

613 N 2882 8

8 10.5 0.9 5

881.5 E -

613.5

• 2740 8

8 8.3 0.8 6

882 E -

612.5 N

2802 10 9

11.5 0.9 7

882 E -

613 N

4110 10 9

25.1 0.8 8

882 E -

613.5 N

2810 8

11 23.4 0.8 9

882 E

614 N

2440 8

8 11.2 0.4 10 882.5 E

613 N

2742 8

10 10.7 0.6

-,t

• 882.5 E -

613.5 N

2360 8

8 24.6 0.3 12 884 E -

620 N

3630 10 10 8.0 1.1 10.4 13 884 E -

646 N

3800 9

9 6.0 1.0 5.4 14 886 E -

617 N

2440 8

8 9.5 0.6 15 886 E -

632 N

2570 10 9

7.3 1.0 7.6 16 886 E -

638 N 2740 10 9

6.1 1.0 7.3 17 887 E -

648 N

2960 9

9 12.9 1.0 18 887 E -

651 N

3240 9

8 4.8 1.0 19 888 E -

626 N

3170 10 10 6.5 1.1 6.2 20 888 E -

639 N

2760 9

9 6.9

1.0 INSTRUMENTS

RESULTS IN LUDLUM MICRO 'R' METER - S/N 138420

µr/hr LUDLUM 2220, LEAD SHIELDED 3" X 1/2" Na! DETECTOR SIN 48395 CPM CIMARRON SOIL COUNTER X" X 4" X 16" Nal DETECTOR pCi/G BACKGROUND NOT SUBTRACTED A:\\AGED.WB2 REVIEWED BY:

'7.,J 1 0.. * ~

0.8 1.0 1.0 1.2 1.1 0.9 0.9 1.1 7.5 1.0 12.4 0.6 5.6 0.8 8.6 0.9 9.0 1.0 7.1 1.0 5.9 0.8 7.9

1.0 BACKGROUND

9 2800 TotafU Th _(Nat) 8.0 8.1 6.1 9.4 6.7 6.9 6.5 8.9 DATE: 2 ~ }.... 7 -7i_

0.8 1.2 0.6 0.9 0.9 0.8 1.0 1.0 MDA 2

NIA 0

1.5 8.5 0.8 8.7 1.0 ROCK ROCK 8.8 0.8 5.1 0.7 9.3 0.9 6.7 1.0 6.9 1.2

3" LN GRID DETECT CIMARA CORPORATION CIMllfRON FACILITY AFFECTED SUB-AREA 'G' - EXPANDED DRAINAGE WAY - DEPTH RESERVOIR #3 SPILLWAY MICRO MICRO pCi/g R'

R' 0- 6" 6" - 1' 1' - 2' 2' - 3' aAAa RM 3' - 4' NUMBER 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) 21 888 E -

641 N

2690 9

9 9.6 0.7 22 889 E -

622 N

3250 9

8 10.5 0.6 23 889 E -

644 N

3890 11

-* 10 5.0 1.2 24 890 E -

616 N

2560 9

8 4.6 0.5 25 890 E -

624 N

2430 9

8 17.2 0.4 26 890 E -

648 N

2250 8

8 7.1 0.6 27 891 E -

631 N

2410 8

8 17.5 0.2 28 891 E -

635 N

2260 8

8 9.3 0.4 29 891 E

639 N

2690 8

8 10.4 0.9 30 891 E

640 N

2310 8

8 10.8 0.7

---:r1 892 E -

608 N

2990 9

9 4.5 0.5 32 892 E -

627 N

4140 10 9

13.5 0.8 33 893 E -

621 N 3170 9

9 6.4 0.8 34 893 E -

631 N

2640 8

8 8.0 0.7 35 894 E -

640 N

3530 10 10 5.9 0.8 36 37 38 39 40 INSTRUMENTS:

RESULTS IN LUDLUM MICRO 'R' METER - SIN 138420

µr/hr LUDLUM 2220, LEAD SHIELDED 3" X 1/2" Nal DETECTOR S/N 48395 CPM CIMARRON SOIL COUNTER X" X 4" X 16" Nal DETECTOR

_eCi/G BACKGROUND NOT SUBTRACTED A:\\AGED.WB2 REVIEWEDBY: 1J,Q, ~

BACKGROUND 9

2800 Total U Th (Nat)

DATE:

7-:2-7-?9' MDA 2

NIA 5

1.5

Monday, July 26, 1999 PHASE II, SUB-AREA "G" - DEPTH AFFECTED EXPANDED DRAINAGE WAY - RESERVOIR #3 SPILLWAY CIMARRON SOIL COUNTER A:\\AGEDURGP.WB2 TOTAL URANIUM SOIL SAMPLE RESULTS SITE BACKGROUND O:F 4 pCi/g NOT SUBTRACTED i

I JULY 26,1999 URANIUM S,QIL SAMPLES FREQUENCY DISTRIBUTION CJJ 50 --

UJ

_J 0...40 ---

~

~30 ---

LL 0 20 ---

0::::

UJ co 10 ---

~

~ 0 -- - 5 10 15 20 30 pCi/g NUMBER OF SAMPLES 66 AVERAGE SAMPLE 9.1 MINIMUM SAMPLE 4.5 MAXIMUM SAMPLE 25.1 STANDARD DEVIATION 4.2

Tuesday, July 27, 1999 PHASE II, SUB-AREA "G" - DEPTH AFFECTED EXPANDED DRAINAGE WAY - RESERVOIR #3 SPILLWAY CIMARRON SOIL COUNTER TOTAL THORIUM SOIL SAMPLE RESULTS SITE BACKGROUND OF 1.5 pCi/g NOT SUBTRACTED JULY 26,1999 THORIUM SOIL SAMPLES FREQUENCY DISTRIBUTION

~ 60 -

_J

-*------+---------

1 a.SO--- --

~

<(40 -

C/)

~30 ___

~

o:: 20 ------+--

w

~ 10 ------+--

~ 0.;-

0.5 1

pCi/g 1.5 NUMBER OF SAMPLES 66 AVERAGE SAMPLE 0.9 MINIMUM SAMPLE 0.2 MAXIMUM SAMPLE 1.2 STANDARD DEVIATION 0.2 A:\\AGEDTHGP.WB2

Monday, July 26, 1999 PHASE II, SUB-AREA "Gu - DEPTH AFFECTED EXPANDED DRAINAGE WAY - RESERVOIR #3 SPILLWAY MICRO-R METER READINGS AT SURFACE LUDLUM MODEL 19, S/N 138420 RES UL TS IN µR/hr JULY 26,1999 MICRO 'R' RE~DINGS@ SURFACE FREQUENCY DISTRIBUTION en 14 -

~ 12 o 10

<{

w 8 -

0:::

u.

6 0

0:::

4 w

ID 2

"2

> a.,.

z 8

9 10 11

µR/hr NUMBER OF SAMPLES 35 AVERAGE SAMPLE 9

MINIMUM SAMPLE 8

MAXIMUM SAMPLE 11 STANDARD DEVIATION 1

A:\\AGEDMRGP.W82

Tuesday, July 27, 1999 PHASE 11 1 SUB-AREA "G" - DEPTH AFFECTED EXPANDED DRAINAGE WAY - RESERVOIR #3 SPILLWAY MICRO-R METER READINGS AT 1 METER ABOVE SURFACE LUDLUM MOIDEL 19, S/N 138420 RESULTS IN µR/hr JULY 26,1999

()

MICRO 'R' RE4DINGS @ 1 METER FREQUENCri DISTRIBUTION i

l_____l__.. _

r 8

9 10 11

µR/hr NUMBER OF SAMPLES 35 AVERAGE SAMPLE 9

MINIMUM SAMPLE 8

MAXIMUM SAMPLE 11 STANDARD DEVIATION 1

A:\\AGEDMRGP.WB2

Tuesday, July 27, 1999 PHASE II, SUB-AREA "G" - DEPTH AFFECTED EXPANDED DRAINAGE WAY - RESERVOIR #3 SPILLWAY GROSS GAMMA READINGS IN CPM LUDLUM MODEL 2221, S/N 48395 BACKGROUND AVERAGES: 8000 JULY 26,1999 Nal 3" DETECTION READINGS FREQUENCY DISTRIBUTION

~ 20 -

z

--~

~ 15 ----+--

UJ 0:::

LL 10 ---'--

0 0:::

w 5

CD

~

~ 0 - 2500 3500 4500 5500 6000 CPM NUMBER OF SAMPLES 35 AVERAGE SAMPLE 3021 MINIMUM SAMPLE 2250 MAXIMUM SAMPLE 5510 ST ANDA RD DEVIATION 658 A:\\AGED3DGP.WB2

CIMARRON CORPORATION - CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED "G" - EXPANDED DRAINAGE WAY - RESERVOIR #3 SPILLWAY n== P c*t Th (NAT)

I 11 Number n

(n-N)

(n-N)2 1

0.2

-0.6 0.4 2

0.4

-0.4 0.2 3

0.4

-0.4 0.2 4

0.4

-0.4 0.2 5

0.5

-0.3 0.1 6

0.5

-0.3 0.1 7

0.6

• 0.2 0.1 8

0.6

-0.2 0.1 9

0.6

-0.2 0.1 10 0.6

-0.2 0.1 11 0.6

-0.2 0.1 12 0.6

-0.2 0.1 13 0.7

-0.1 0.0 14 0.7

-0.1 0.0 15 0.7

-0.1 0.0 16 0.7

-0.1 0.0 17 0.3

-0.8 0.7 18 0.8

-0.0 0.0 19 0.8

-0.0 0.0 20 0.8

-0.0 0.0 21 0.8

-0.0 0.0 22 0.8

-0.0 0.0 23 0.8

-0.0 0.0 24 0.8

-0.0 0.0 25 0.8

-0.0 0.0 26 0.8

-0.0 0.0 27 0.8

-0.0 0.0 28 0.8

-0.0 0.0 29 0.8

-0.0 0.0 30 0.8

-0.0 0.0 31 0.9 0.1 0.0 32 0.9 0.1 0.0 33 0.9 0.1 o.o 34 0.9 0.1 0.0 35 0.9 0.1 0.0 36 0.9 0.1 0.0 37 0.9 0.1 0.0 38 0.9 0.1 0.0 39 0.9 0.1 0.0 40 0.9 0.1 0.0 41 1.0 0.2 0.0 42 1.0 0.2 0.0 43 1.0 0.2 0.0 44 1.0 0.2 0.0 45 1.0 0.2 o.o 46 1.0 0.2 0.0 47 1.0 0.2 0.0 48 1.0 0.2 0.0 49 1.0 0.2 o.o 50 1.0 0.2 0.0 17.2 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 55.4 3.7 Sum(n)

Sum(n-N)'

No. of Samples (x) : I 66 f

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

Sample Mean (N) : I 0.84 I Standard Deviation (Sd) = SQRT [(n-N)' + (x. 1)]

Standard D11viation: ITEJ 2 Std Devtations: ~

Degree of Freedom(df).= (x)

• 1 Data listed on Table B-1 (df) = I 1.610 1 Area's Average Level (Aµ)= (N) + (df) x [(Sd)/SQRT(x)]

(A11) = BE pCi/gTh (NAT)

GUIDEUNEVALUE:

pCi/gTh (NAT)

Acceptable Level:

pCi/gTh (NAT)

TABLE B

• 1 Factors for Comparision of Survey Data with Guidelines (df) 95%

97.5"/.

(df) 1 6.314 12.706 19 2

2.92 4.303 20 3

2.353 3.182 21 4

2.132 2.776 22 5

2.015 2.571 23 6

1.943 2.447 24 7

1.895 2.365 25 8

! 1.86 2.306 26 9

1.833 2.262 27 10

. 1.812 2.228 28 11

' 1.796 2.201 29 12

'. 1.782 2.179 30 13 1.771 2.16 40 14 1.761 2.145 60 15 1.753 2.131 120 16 1.746 2.12 400 17 1.74 2.11 Infinite 18 1.734 2.101 For values of Degrees of Freedom not Hsted:

Interpolate between the listed values.

(df) high value(Z)

(df) low value(Y) 120 60 is(B) is (A) 95"/.

1.729 1.725 1.721 1.717 1.714 1.711 1.708 1.706 1.703 1.701 1.699 1.697 1.684 1.671 1.658 1.649 1.645 I 1.658 I l 1.671 I 65 is calculated as follow; 95%

PERFORMED ev~* ~tsj~~'::1,{..~~:::::::::

REVIEWED If :._"h.l_.,_0-....._-_,_-,f,----

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% l 95% I DATE:

/-J_ 7-17 DA TE:

7 - ). 9 f PAGE 1 OF 2 a:\\AGEOTCMP

CIMARRON CORPORATION

• CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDEN AFFECTED "G"

• EXPANDED DRAINAGE WAY - RESERVOIR #3 S n = pCi/g Th (NAT)

• n = pCi/g Th (NAT Number n

(n-N)

(n-N)2 Number n

(n-N)

(n-Nl" 51 1.0 0.16 0.03 101 0.00 0.00 52 1.0 0.16 0.03 102 0.00 0.00 53 1.0 0.16 0.03 103 0.00 0.00 54 1.0 0.16 0.03 104 0.00 0.00 55 1.0 0.16 0.03 105 0.00 0.00 56 1.0 0.16 0.03 108 0.00 0.00 57 1.0 0.16 0.03 107 0.00 0.00 58 1.0 0.16 0.03 10 0.00 0.00 59 1.1 0.26 0.07 10 0.00 0.00 60 1.1 0.26 0.07 11 0.00 0.00 61 1.1 0.26 0.07 111 0.00 0.00 62 1.1 0.26 0.07 112 0.00 0.00 63 1.2 0.36 0.13 113 0.00 0.00 64 1.2 0.36 0.13 114 0.00 0.00 65 1.2 0.36 0.13 11~

0.00 0.00 66 1.2 0.36 0.13 11 0.00 0.00 67 0.00 0.00 1171 0.00 0.00 68 0.00 0.00 11 0.00 0.00 69 0.00 0.00 11~

0.00 0.00 70 0.00 0.00 120 0.00 0.00 71 0.00 0.00 121 0.00 0.00 72 0.00 0.00 122 0.00 0.00 73 0.00 0.00 123 0.00 0.00 74 0.00 0.00 124 0.00 0.00 75 0.00 0.00 125 0.00 0.00 76 0.00 0.00 126 0.00 0.00 77 0.00 0.00 127.

0.00 0.00 78 0.00 0.00 128 0.00 0.00 79 0.00 0.00 129 0.00 0.00 80 0.00 0.00 130 0.00 0.00 81

, 0.00 0.00 131 0.00 0.00 82 0.00 0.00 132 0.00 0.00 83 0.00 0.00 133 0.00 0.00 84 0.00 0.00 134 0.00 0.00 85 0.00 0.00 135!

0.00 0.00 86 0.00 0.00 1361 0.00 0.00 87 0.00 0.00 137 0.00 0.00 88 0.00 0.00 138 0.00 0.00 89 0.00 0.00 139 0.00 0.00 90 0.00 0.00 140 0.00 0.00 91 0.00 0.00 141 0.00 0.00 92 0.00 0.00 142 0.00 0.00 93 0.00 0.00 143 0.00 0.00 94 0.00 0.00 144 0.00 0.00 95 0.00 0.00 145 0.00 0.00 96 0.00 0.00 146 0.00 0.00 97 0.00 0.00 147 0.00 0.00 98 0.00 0.00 148 0.00 0.00 99 0.00 0.00 149 0.00 0.00 100 0.00 0.00 150 0.00 0.00 17.2 1.0 0.0 0.0 Sum(n)

Sum(n-N)'

\\

Sum(n)

Sum(n-N)2 I

PAGE 1 OF 2 a:\\AGEDTCMP

CIMARRON CORPORATION

• CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDENCE AFFECTED "G" - EXPANDED DRAINAGE WAY - RESERVOIR #3 SPILLWAY n = pCi/g TOT AL U Number n

(n-N)

(n-N)*

1 4.5

-4.6 21.3 2

4.6

-4.5 20.3 3

4.8

-4.3 18.6 4

5.0

-4.1 16.9 5

5.1

-4.0 16.1 6

5.4

-3.7 13.8 7

5.6

-3.5 12.3 8

5.9

-3.2 10.3 9

5.9

-3.2 10.3 10 6.0

-3.1 9.7 11 6.1

-3.0 9.1 12 6.1

-3.0 9.1 13 6.2

-2.9 8.5 14 6.4

-2.7 7.3 15 6.5

-2.6 6.8 16 6.5

-2.6 6.8 17 6.6

-2.5 6.3 18 6.7

-2.4 5.8 19 6.7

-2.4 5.8 20 6.9

-2.2 4.9 21 6.9

-2.2 4.9 22 6.9

-2.2 4.9 23 7.1

-2.0 4.0 24 7.1

-2.0 4.0 25 7.1

-2.0 4.0 26 7.2

-1.9 3.7 27 7.3

-1.8 3.3 28 7.3

-1.8 3.3 29 7.5

-1.6 2.6 30 7.6

-1.5 2.3 31 7.9

-1.2 1.5 32 8.0

-1.1 1.2 33 8.0

-1.1 1.2 34 8.0

~1.1 1.2 35 8.1

-1.0 1.0 36 8.3

-0.8._

0.7 37 8.5

-0.6 0.4 38 8.6

-0.5 0.3 39 8.7

-0.4 0.2 40 8.7

-0.4 0.2 41 8.8

-0.3 0.1 42 8.8

-0.3 0.1 43 8.9

-0.2 0.0 44 9.0

-0.1 0.0 45 9.3 0.2 0.0 46 9.3 0.2 0.0 47 9.4 0.3 0.1 48 9.5 0.4 0.2 49 9.6 0.5 0.2 50 10.4 1.3 1.7 236.0 923.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 601.3 1190.2 Sum(n)

Sum(n-N)2 No. of Samples (x) : j 66 J

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

Sample Mean (N) : I 9.11 i Standard Deviation (Sd) = SQRT [(n-N)2 + (x - 1 )]

Standard Deviation: [TILJ 2 Std De~iations: ~

Degree of Fteedom(df).= (x) - 1 Data listed on Table 8-1 (df) = l 1.610 I Area's Average Level (Aµ)= (N) + (df) x [(Sd)/SQRT(x)]

(Aµ)= ~

pCi/gU TOTAL U QUIDELINS VALUE:

pCi/gU TOT AL u Acceptable Level:

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

97.5%

(df) 95%

97.5%

1 6.314 12.706 19 1.729 2.093 2

2.92 4.303 20 1.725 2.086 3

2.353 3.182 21 1.721 2.08 4

2.132 2.776 22 1.717 2.074 5

2.015 2.571 23 1.714 2.069 6

1.943 2.447 24 1.711 2.064 7

1.895 2.365 25 1.708 2.06 8

1.86 2.306 26 1.706 2.056 9

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

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

Interpolate between th~e_lis_te_d_v~a_lu_es_. __ ~--,-----,

(df) high value(Z) 120 is (8) 1.658 95%

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

Desired value(df) (X) 65 is calculated as follow:

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

The (df) value for

)

65 1.670 95%

REVIEWED $Y:._...:_~"'--....:.....;~---

DA TE: 7 I - 1 1 PAGE 1 OF 2 a:IAGEOUCMP

CIMARRON CORPORATION

• CIMARRON FACILITY TRUE MEAN ACTIVITY VS. GUIDELINE VALUE AT 95% CONFIDEN AFFECTED "G"

• EXPANDED DRAINAGE WAY* RESERVOIR #3 S n = pCi/g TOTAL U n = pCi/g TOTAL Number n

(n-N)

(n-N)2 Number n

(n-N)

(n-N)'

51 10.4 1.29 1.66 101 0.00 0.00 52 10.5 1.39 1.93 102 0.00 0.00 53 10.5 1.39 1.93 103 0.00 0.00 54 10.7 1.59 2.53 104 0.00 0.00 55 10.8 1.69 2.85 105 0.00 0.00 56 11.2 2.09 4.37 106 0.00 0.00 57 11.5 2.39 5.71 107 0.00 0.00 58 12.4 3.29 10.82 108 0.00 0.00 59 12.9 3.79 14.36 109 0.00 0.00 60 13.5 4.39 19.27 110 0.00 0.00 61 13.8 4.69 21.99 111 0.00 0.00 62 17.2 8.09 65.44 112 0.00 0.00 63 17.5 8.39 70.38 113 0.00 0.00 64 24.6 15.49 239.92 114 0.00 0.00 65 23.4 14.29 204.19 115 0.00 0.00 66 25.1 15.99 255.66 116 0.00 0.00 67 0.00 0.00 117 0.00 0.00 68 0.00 0.00 118 0.00 0.00 69 0.00 0.00 119 0.00 0.00 70 0.00 0.00 120 0.00 0.00 71 0.00 0.00 121 0.00 0.00 72 0.00 0.00 122 0.00 0.00 73 0.00 0.00 123 0.00 0.00 74 0.00 0.00 124 0.00 0.00 75 0.00 0.00 125 0.00 0.00 76 0.00 0.00 126 0.00 0.00 77 0.00 0.00 121 0.00 0.00 78 0.00 0.00 128 0.00 0.00 79 0.00 0.00 129 0.00 0.00 80 0.00 0.00 130 0.00 0.00 81

' 0.00 0.00 131 0.00 0.00 82 0.00 0.00 132 0.00 0.00 83 0.00 0.00 133 0.00 0.00 84 0.00 0.00 134 0.00 0.00 85 0.00 0.00 13$

0.00 0.00 86 0.00 0.00 136 0.00 0.00 87 0.00 0.00 137 0.00 0.00 88 0.00 0.00 138 0.00 0.00 89 0.00 0.00 139 0.00 0.00 90 0.00 0.00 140 0.00 0.00 91 0.00 0.00 141 0.00 0.00 92 0.00

. 0.00 142 0.00 0.00 93 0.00 0.00 143 0.00 0.00 94 0.00 0.00 144 0.00 0.00 95 0.00 0.00 145 0.00 0.00 96 0.00 0.00 146 0.00 0.00 97 0.00 0.00 147 0.00 0.00 98 0.00 0.00 148 0.00 0.00 99 0.00 0.00 149 0.00 0.00 100 0.00 0.00 150 0.00 0.00 236.0 923.0 0.0 0.0 Sum(n)

Sum(n-N)2 Sum(n)

Sum(n-N)"

PAGE 2 OF 2 a:IAGEOUCMP