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Alan J. Blotcky Reactor Facility, Omaha Veterans Administration Medical Center, Characterization Survey Data Packages, Appendix B (Book 2 of 2)
	ML061380590
Person / Time
Site:	05000131
Issue date:	05/02/2006
From:	; US Dept of Veterans Affairs, Medical Ctr, Omaha, NE
To:	; NRC/FSME
References
	Download: ML061380590 (354)
	v • d • e

Alan J. Blotcky Reactor Facility Omaha Veterans Administration Medical Center Omaha, Nebraska Characterization Survey Data Packages APPENDIX B (Book 2 Of 2)

P1 Alan J. Blotcky Research Reactor Characterization Survey Package N0002 Outside Areas

P2 Alan J. Blotcky Reactor Facility CHARACTERIZATION SURVEY PACKAGE N0002 (Outside Areas)

TABLE OF CONTENTS 1.0 Survey Package Worksheet for the Outside Areas ..................................................... 3 2.0 Maps of the Survey Area ........................................................ 8 3.0 M2350 Download Direct Beta Report(s) ........................................................ 12 4.0 M2350 Exposure Rate Measurement Report ........................................................ 23 5.0 Removable Alpha/Beta Activity Laboratory Report(s) ............................................ 27 6.0 Gamma Spectroscopy Soil Sample Reports (including Roof Material Analysis) .............. 33

P3 Section 1 Survey Package Worksheet for the Outside Areas

P4 AJB Reactor Facility IDuratek, Inc.

Survey Package N0002 (L1 Code) Survey Package Instructions ATTACHMENT 6.2 CHARACTERIZATION SURVEY PACKAGE WORKSHEET PACKAGE ID NO.: N0002 PREPARED BY: Paul DATE: 11/20/02 Jones LOCATION: Veterans Affairs Medical Center APPROVED BY: Doug DATE: 11/21/02 Schult FLOOR/ELEVATION: Outside Grounds BUILDING: Research AREA: Outside Areas This package includes the building exterior, sidewalks, paved areas, and outside, soils.

I ne Asan J. l otciky Reactor was used to support nuclear medicine and research programs conducted at me medical center.

The total reactor operation was approximately 515,000 kilowatt hours from 1959 to 2001.

For the survey, perform measurements according to the Final Survey Plan Section 5.0 and applicable project procedures.

Non-Impacted Survey Units

1. Collect 1 direct beta or alpha measurement at each survey measurement location (SML), as appropriate.

2. Mark the location of the direct beta or alpha measurements on a survey map.

3. Obtain 1 smear (approximately 100 cm2) at each direct beta SML for removable alpha and beta surface activity.

C:\MyFiles\ProjectslOmahaVeteran\Survey Stuff\Packages\Package N0002.doc Page I of 4

AJB Re racility Survey Area No. N0002 (L1 Code)

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Duratek, Inc. (

Survey Package Instructions General Survey Instructions (Non-Impacted Areas)

1. Use LMI Data Logger M2350-1 with M43-68 style Gas Flow Proportional for direct beta survey measurements.

2. Perform one 5 minute pre-survey shielded background and one 5 minute post-survey shielded background for each detector used for the survey.

3. Verify that the direct measurement MDA is less than 25% of the expected DCGL (<1,250 dpm/lOOcm2 ) for direct beta measurements. If the field background is less than 1000 CPM, use 10-second count time for each direct beta measurement. If the field background is greater than 1000 CPM, obtain further directions from the Project Manager or designee.

4. Download each M2350-1 at completion of the survey, shift and/or prior to performing surveys in another survey area (before changing LI codes).

4. Use location codes provided below for direct beta measurements, as appropriate.

5. Use the Package LI, L2, and L8 codes when labeling smears samples for counting.

6. When all measurements, samples or scans are collected, initial and date the "MEASUREMENT TYPE" block on the survey package to indicate the measurements or samples were collected.

7. Note any problems, comments, or other information pertinent to the data or sample collection under the "NOTES" section; C:\MyFiles\Projects\Omaha)Veteran\Survey StuftPackages\Package N0002.doc Page 2 of 4

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AJIB Re' 'acility Survey Area No. N0002 (L1 Code) Duratek, Inc. (

Survey Package Instructions General AMea lifrect Direct Beta I scan Smear Smear Utner Description Beta Alpha Scan I

Classification Gross H-3 (e.g. soil LI .I L2 I L3 I 7 l L8 [Y samples)

N0002 O1WE1 TACO0 ZZZZZ 1 thru 30 Building Non- 30- \A

_____Exterior Jinpactd' No002 OlFEl TACOI t ZZZZZ I thru 30 Paved areas Non- 39 /U3

_ & Sidewalks Impacted yes k /VI N0002l O1FE2 TACO0 ZZZZZ 1 thmu 15 Roof Non- te 5 1

C-71 155 1IImpacted C:\MyFiles\Projects\Omaha Veteran\Survey Stufl\Packages\Package N0002.doc Page 3 of 4

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AJB ReC 'acility Survey Area No. N0002 (LI Code)

Duratek, Inc. C Survey Package Instructions Date Package Completed Package Reviewed by and Date 4(o iQ- /16)03

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P8 Section 2 Maps' of the Survey Area

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P12 Section 3 M2350 Download Beta Report(s)

P13 M2350-1 Download BETA Report FileName : 00000038 I Survey Description :N0002 Roof 01 FE2 Pre S/C Survey Reason: Characterization User ID: JLM9424 . Technician Name:

Instrument Model : 2350-1 Instrument S/N : 95340 Instrument Cal. Due: 1/22/03 Detector Model : 43-68B Detector SIN: 133988 Detector Cal. Due : 49/03 Measurement Type: BETA Detector Type: 02200: 126 cm2 Gas Proportional Detector Detector Area :126 Efficiency: 0.218 Survey Date: 12/3J02 Pnnt Name I Snature Date

\SK/t, Print Name Sigblture bate Comments:

Sign-Off a IL I Print Name S lal -&ILI.1901t, Signature ' oaate' Pae .l of 3

P14 DuratekBeta Survey Report Download FileName: 00000038 Package Surface Sample Counts nime Count Material Grid Locaton# Bkgd Net ID(LI) (L2) (sec) Type(L5) TYpe(L6) M(97) (a8) (cpm) (DPm1IOOcm2)

N0002 O1FE2 5 129.0 10 FLDCT B9999 77777 I 305 1 707 N0002 OIFE2 6 121.0 10 FLDCT B9999 7777 2 305 1t533 N0002 01FE2 7 108.0 10 FLDCT B9999 77777 3 305 1,249 N0002 01FE2 8 103.0 10 FLDCT B9999 77777 4 305 1,140 N0002 01FE2 9 92.0 10 FLDCT B9999 77777 5 305 899 N0002 01FE2 10 90.0 10 FLDCT B9999 77777 6 305 856 N0002 01FE2 11 114.0 10 FLDCT B9999 77777 7 305 1.380 ND002 01FE2 12 123.0 10 FLDCT B9999 77777 8 305 1.576 N0002 01FE2 13 89.0 10 FLDCT B9999 7 .9 305 834 N0002 01FE2 14 90.0 10 FLDCT B9999 77777 10 305 856 N0002 O1FE2 15 98.0 10 FLDCT B9999 z7777 11 305 1,030 N0002 01FE2 16 111.0 10 FLDCT B9999 77777 12 305 N0002 01FE2 17 108.0 10 FLDCT B9999 7777z 13 305 1,249 N0002 01FE2 18 112.0 10 FLDCT B9999 u77 14 305 1.336 N0002 01FE2 19 99.0 10 FLDCT B9999 77777 15 305 1,052 Beta Flg 1250 - J sBeta Max Flag 5000. M Tuesday, December 03,2002 Page of 3

Download Name: 00000038 Survey

Description:

N0002 Roof 01 FE2 Pre SIC M2350-1 Sample Results 6.OOE+03

,5.OOE+03 4.002+03 3.OOE+03 i 2.00E+03 0.002+00 LO co f... OD 0) 0 ' V) Nt to co U 0) l SumOfNet DPM/100cm2 -- *- Beta Flag Value (Net DPM/100cm2) + Beta Max Flag Value (Net DPM/100cm2)

P16 M2350-1 Download BETA Report File Name: 00000024 l Survey Description :01we1 ,01fel bldg ext,park lot,sidewalks pre-post.

Survey Reason: Characterization User ID: JLM9424 Technician Name:

Instrument Model : 2350-1 Instrument SIN: 95340 Instrument Cal. Due: 1122103 Detector Model :43-68B Detector SIN: 133988 Detector Cal. Due :419103 Measurement Type: BETA Detector Type: 02200: 126 cm2 Gas Proportional Detector DetectorArea :126 Efficiency: 0.232 l Survey Date: 11/21/02 J(AA~ Print Name 11/22/02 Date Print Name Date Comments:

CxaMl U udet- -clo. Iool + lvowx 4-o- 6 1e*-'..S 5 ft. 6I, I.

.121 sign-off , , o 4 S .eA 0010-;o 1A113 vlb x Print Name Signature f Date / £ Page of___

P17 DuratekBeta Survey Report Download File Name: 00000024 Count Material Grid Location Bkgd Net Package Surface Sampl Counts Time ID(Ul) (L2) (sec) Type(LS) Type(L6) ID(L7) # (L8) (cpm) (DPWI00cm2)

FLDCT B0002 77777 1 306 903 NOOOZ OFEI 5 95.0 10 FLDCT B0002 77777 2 306 821 N0002 01FE1 6 91.0 10 10 FLDCT B0002 77777 3 306 595 N0002 OIFEI 7 80.0 B0002 77777 4 306 800 N0002 01FEl 8 90.0 10 FLDCT B0002 77777 5 306 698 N0002 O0FEl 9 85.0 10 FLDCT B0005 Z7777 6 343 140 N0002 01FEl 11 64.0 10 FLDCT FLDCT B0005 77777 7 343 571 N0002 01FE1 12 85.0 10 FLDCT B0005 77777 8 343 756 N0002 OIFEl 13 94.0 10 10 FLDCT B0005 77777 9 343 1,187 N0002 01FEl 14 115.0 10 FLDCT B0005 7777Z 10 343 735 N0002 01FE1 15 93.0 FLDCT BDO05 Z7777 11 343 653 N0002 OIFEI 16 89.0 10 B0005 7777Z 12 343 777 -

N0002 OIFEI 17 95.0 10 FLDCT FLDCT B0005 7777Z 13 343 777 N0002 OIFEI 18 95.0 10 FLDCT B0005 ?7777 14 343 920 N0002 0IFEI 19 102.0 10 FLDCT B0005 777ZZ 15 343 838 N0002 01FEI 20 98.0 10 FLDCT B0010 77777 1 357 729 N0002 D1WEI 22 95.0 10 FLDCT 80010 77777 2 357 441 N0002 0IWEl 23 81.0 10 FLDCT B0010 77777 3 357 462 N0002 01WEI 24 82.0 10 FLDCT B0010 77777 4 357 872 N0002 OIWEI 25 102.0 10 FLDCT B0010 7777Z 5 357 667 N0002 OIWE1 26 92.0 10 10 FLDCT B0010 77777 6 357 421 N0002 01WEI 27 80.0 10 FLDCT B0010 77777 7 357 770 N0002 01WE1 28 97.0 10 FLDCT B0010 77777 8 357 913 N0002 01WE1 29 104.0 10 FLDCT B0010. Z7777 9 357 708 N0002 01WE1 30 94.0 10 FLDCT B0010 7777Z 10 357 482 N0002 01WEl 31 83.0 10 FLDCT B0010 77777 11 357 585 N0002 OIWE1 32 88.0 10 FLOCT B0010 ?7777 12 357 708 N0002 01WE1 3i 94.0 FLDCT B0010 77777 13 357 503 N0002 01WE1 34 84.0 10 10 FLDCT B0010 77777 14 357 995 N0002 0IWEI 35 108.0 10 FLDCT B0010 7777Z 15 357. 811 N0002 0IWE1 36 99.0 10 FLDCT B0010 77777 16 357 564 N0002 01WEi 37 87.0 10 FLDCT B0010 . Z7777 17 357 216 N0002 OIWEI 38 70.0 10 FLDCT B0010 77777 18 357 -51 N0002 0IWEI 39 57.0 10 FLDCT B0010 ZZ7Z7 19 357 -585 N0002 OIWEI 40 31.0 10 FLDCT B0010 7777Z 20 357 -380 N0002 OIWEI 41 -41.0 38.0 10 FLDCT B0010 77777 21 357 -441 N0002 01WEI 42 10 FLDCT B0010 77777 22 357 113 N0002 01WE1 43 65.0 86.0 10 FLDCT B0010 77777 23 357 544 N0002 0IWEI 44 10 FLDCT BO010 7777Z 24 357 626 N0002 0IWEI 45 90.0 Beta Flag 1250 -

Beta Max Flag 3 5000 Monday, Decembher 30, 2002 - Page a of _

P18 Count Material Grid Location Bkgd Net Package Surface Satnpl Counts Time e# (sec) Type(LS) Tvpe(L6) ID(L7) # (18) (cpm) (DPM/IOOcm2)

ID(1) (L2)

B0010 77ZZ7 25 357 380 N0002 01WE1 46 78.0 10 FLDCT 77777 26 357 92 N0002 OIWE1 47 64.0 10 FLDCT BOOIO 80010 77777 27 357 298 N0002 01WE1 48 74.0 10 FLDCT B0010 77777 28 357 92 N0002 O1WE1 49 64.0 10 FLDCT BOD10 77Z777 29 357 92 N0002 Q1WE1 50 64.0 10 FLDCT B0010 77777 30 357 -92 N0002 0IWEI 51 55.0 10 FLDCT FLDCT B0005 16 343 325 N0002 OIFEI 52 73.0 10 77Z77 B0002 17 306 780 N0002 OIFE1 53 89.0 10 FLDCT 77777 B0002 18 306 862 N0002 OIFE1 54 93.0 10 FLDCT 77777 FLDCT B0002 19 306 431 N0002 01FE1 55 72.0 10 77777 B0002 20 306 1 396 10 FLDCT N0002 OIFEI 56 119.0 77777 77777 306 267 57 64.0 10 FLDCT B0002 21 N0002 01FE1 77777 FLDCT B0002 22 306 452 N0002 OIFE1 58 73.0 10 77777 10 FLDCT B0002 23 306 718 N0002 01FE1 59 86.0 77777 FLDCT B0002 24 306 534 N0002 OIFE1 60 77.0 10 77777 FLDCT B0002 25 306 164 N0002 01FE1 61 59.0 10 77777 FLDCT B0002 26 306 41 N0002 OFEI 62 53.0 10 77777 FLDCT B0005 27 343 -250 N0002 01FEI 63 45.0 10 77777 10 FLDCT B0005 28 343 -188 N0002 O0FEl 64 48.0 77Z77 10 FLDCT B0005 29 343 -311 N0002 01FEI 65 42.0 77777 FLDCT B0005 30 343 -86 N0002 01FE1 66 53.0 10 IBeta Flag 1250 -

Beta Max Flag so32 Monday, December 30, 2002 Page 3 ofk'C

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1 ( ( 1 Download Name: 00000024 Survey

Description:

Olwel.01 fel bdg ext,park loisidewalks pre-post.

M2350-1 Sample Results 6.OOE+03 4.OOE+03 2 OOE+03-1 OOE+03-

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- I- -t Y un r-, c - c-)tn t ,t tt t U) Ltifl U U) v oD co C SumOfNet DPM/100cm2 a Beta Flag Value (Net DPM/100cm2) + Beta Max Flag Value (Net DPM/100cm2) q 0 __q -q CD

P20 M2350-1 Download Beta Report File Name: 00000048 1 Survey Description :N0002 01 FE2 ROOF PRE S/C Survey Reason: Characterization User ID: JLM9424 Technician Name: Jack Mucia Instrument Model : 2350-1 Instrument S/N : 95340 Instrument Cal. Due: 1/22/03 Detector Model : 43-68B Detector SIN: 133988 Detector Cal. Due : 4/9/03 Measurement Type: Beta Detector Type: 02200:126 cm2 Gas Proportional Detector Detector Area :126 Efficiency: 0.227 l Survey Date: 12/6/02 Jack Mucia

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/ 1/( /Ae, Print Name , Si7l{tur Date Print Name Signature Date Cornments:

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P21 DuratekBeta Survey Report Download FileName: 00000048 Package Surface Sample Counts 77me Count Material Grid Locadon # Bkgd Net ID(LI) (L2) # (sec) 7Ype(L5) Type(L6) ID(L7) (L8) (cpm) (DPMZOOcim2)

N0002 01 FE 22 104.0 10 FLDCT B9999 77777 1 300 1,133 N0002 01FE 23 91.0 10 FLDCT B9999 77777 2 300 880 N0002 01FE 24 97.0 10 FLDCT B9999 77777 3 300 986 N0002 01FE' 25 80.0 10 FLDCT B9999 77777 4 300 629 N0002 01FE 26 99.0 10 FLDCT B9999 77777 5 300 1,028 N0002 01 FE 27 97.0 10 FLDCT B9999 77777 6 300 986 N0002 01FE 28 108.0 10 FLDCT B9999 7 300 1,217 N0002 01FE' 29 102.0 10 FLDCT B9999 77777 8 300 1,091 N0002 O1FEi 30 79.0 10 FLDCT B9999 7777z 9 300 608 N0002 01FE! 31 95.0 10 FLDCT B9999 10 300 944 N0002 OIFEi 32 79.0 10 FLDCT B9999 77777 11 300 608 N0002 01FE1 33 ' 85.0 10 FLDCT B9999 77777 12 300 734 N0002 OIFE 34 99.0 10 FLDCT B9999 Z72 77777 77777 13 300 1,028 N0002 OIFE 35 93.0 10 FLDCT B9999 7= 14 300 902 N0002 OIFE 36 124.0 10 FLDCT B999g 15 300 1.552 N0002 01FE 37 110.0 10 FLDCT B9999 16 300 1 259 N0002 OIFE 38 88.0 10 FLDCT B9999 17 300 797 N0002 D0FE 39 121.0 10 FLDCT B9999 ,,,,z 77777 18 300 N0002 OFE 40 98.0 10 FLWCT B9999 zzzzz 77777 19 300 1,007 N0002 0IFE 41 97.0 10 FLDCT B9999 zzzzz 20 300 986 N0002 OIFE 42 116.0 10 FLDCT B9999 Z777 21 300 1.385 N0002 01FE 43 101.0 10 FLDCT B9999 ,....

Z77777 22 300 1,070 N0002 O0FE 44 107.0 10 FLDCT B9999 77777 23 300 1,196 ND002 01FE 45 115.0 10 FLDCT B9999 7777 24 300 i.4 N0002 01FE 46 95.0 10 FLDCT B9999 25 300 944 zz7z7 N0002 01FE 47 117.0 10 FLDCT B9999 26 300 1.405 7777 N0002 0IFE 48 116.0 10 FLDCT B9999 27 300 1.385 N0002 01FE 49 118.0 10 FLDCT B9999 7777 28 300 1.426 N0002 01FE 50 117.0 10 FLDCT B9999 29 300 1405 i.468 N0002 01FE 51 120.0 10 - FLDCT B9999 30-. 300 a

Beta Flag 1250 -

Beta M c FlHag 5000 I Friday,December 06,2002 Page - of___ __

Download Name: 00000048 Survey

Description:

N0002 O1FE2 ROOF PRE S/C M2350-1 Sample Results 6.OOE+03 -

5.OOE+03 -

4.OOE+03 -

3.OOE+03-2.OOE+03.

1.OOE+03.

O.OOE+00 N t I) D (_0 COX- N C) t CO tDc N N N ( 0a)0 N M)U qt D00 N N Dcm N N N et Fla Va u D1m)

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v-X (N 't DM1 c) U Ii= SumOINet DPMIIO0cm2 -*--Beta Flag-Value (Net DPM/1lO0cm2) -.- *-Beta Max Flag Value (Net D M/O m2 j~~ 3 of3 r_3

P23 Section 4 M2350 Exposure Rate Measurement Report

P24 M2350-1 Download Gamma Report lFil Name: 00000023 I Survey Description :01 oil surface sample points,pre-post sic ISurvey Reason Characterization User ID: JLM9424 Technician Name:

Instrument Model :2350-1 Instrument S/N: 95346 Instrument Cal. Due: 2V21103 Detector Model : WMI 44-10 Detector SIN: 162409 Detector Cal. Due : 4/8/03 Measurement Type: Gamma Detector Type : 03300:

Cal. Constant :87769910000 Survey Date: 11/21/02

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Ji &LJ Print Narre Lau I-Llt- 1202 Date Print Narne -"~~~5ature Date CommenX:

s Sign-Off Nad'- JOS,5 -/4.-also Print Narne Signafure P Oatfi eD__

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P26 Duratek Gamma Survey Report Package Surface Sample Counts Time Count Material Grid Location Bkgd , R/hr:

ID(L) (L2) # (sec) Type(L5) 7)Tpe(6) ID(L7) # (8) (cpm)

NOOO 01OL1 4 2,790.0 12 FLDCT B0016 77777 1 0 9.54E+OO NOOO 010L1 5 2,939.0 12 FLDCT B0016 77"77 2 0 1.O0E+01 NOOD 0101 6 3,197.0 12 FLDCT 80016 77777 3 0 1.09E+01 NOOO 0101 7 3,130.0 12 FLDCT B0016 777Z7 4 0 1.07E+01 NOOO 010L1 B 3,340.0 12 FLDCT B0016 Z7777 5 0 1.14E+01 NOOO 0101 9 3,171.0 12 FLDCT B0016 77777 6 0 1.08E+01 NOOO 0101 10 3,160.0 12 FLDCT B0016 7777 7 0 1.08E+01 NOOO 0101 11 3,751.0 12 FLDCT B0016 77ZZZ 8 0 1.28E+01 NOOO 0101 12 3,544.0 12 FLDCT B0016 777Z 9 0 1.21E+01 NOOO 0101 13 3,455.0 12 FLDCT B0016 77zz 10 0 1.18E+01 N00 OOLI 14 2,888.0 12 FLDCT B0016 zzzz 11 0 9.87E+00 NOOO 01OLI 15 3,273.0 12 FLDCT B0016 77Z77 12 0 1.12E+01 NO3 010L1 16 2,773.0 12 FLDCT B0016 7ZZZZ 13 0 9.48E+00 NOOO 0101 17 3,252.0 12 FLDCT B0016 77777 14 0 1.IIE+01 NOOO 01011- 18 3,151.0 12 FLDCT B0016 77777 15 0 1.08E+01 NOOO 0101 19 3,667.0 12 FLDCT B0016 77777 16 0 1.25E+01 NOOO 0101 20 3,833.0 12 FLDCT B0016 77777 17 0 1.31E+01 NOoo 010L1 21 2,489.0 12 FLDCT B0016 77777 18 0 8.51E+00 NOOO 0101 22 3,038.0 12 FLDCT B0016 77777 19 0 1.04E+01 NOOO 0101 23 2,961.0 12 FLDCT B0016 77777 20 0 1.O1E+01 NOOO 0101 24 3,281.0 12 FLDCT B0016 77777 21 0 1.12E+01 NOOO 0101 25 3,113.0 12 FLDCT 80016 77777 22 0 1.06E+0-1 NOOO 0101 26 3,485.0 12 FLDCT B0016 777ZZ 23 0 1.19E+01 NOOO 0101 27 2,744.0 12 FLDCT B0018 77777 24 0 9.38E+00 NOOO 0101 28 2,795.0 12 FLDCT B0016 77777 25 0 9.55E+00 NOOo 0101 29 3,401.0 12 FLDCT 80016 77777 26 0 1.16E+01 NOOO 010L1 30 3,554.0 12 FLDCT B0016 77777 27 0 1.21E+01 NOOO OIOLI 31 3,724.0 12 FLDCT B0016 Z7777 28 0 1.27E+01 NOOO 01OL1 32 3,783.0 12 FLDCT B001oe 7777 29 0 1.29E+01 NOOO 0101 33 3,577.0 12 FLDCT B0016 7ZZZ7 30 0 1.22E+01 D t# c4 Alo4-re(.-4.

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Error Friday,November 22,2002 Page_3 of_

P27 Section 5 Removable Alpha/Beta Activity Laboratory Report(s)

12/ '"°02 A2,,iL a VA. A B SMEAR ANALYSIT Survey Report 11:4(wuAM Batch ID: VA Smear Analysis - 200212040953 Acquisition Date: 12/4/2002 Alpha Bkg 0.25 cpm Group: I Sample Location:No0Q ot Fp-1 Batch Key 6,537 Beta 1kg 1.95 cpm Device: LB-5100 #15632 Operating Voltage: 1,417.0 Alpha Efficiency 0.2540 Selected Geometry: Swipe/Smear Alpha to Beta Crosstalk 0.00 Beta Efficiency 0.2370 Sample ID Cc unt Time Alpha Count Rate

Alpha DPM AlphaMDA Flag Beta Count Rate Beta DPM (Mlin) (CPM) Beta MDA Flag DPKM (CPM)

(DPM 20021204095408-I1 1.00 -0.25 -0.99 17.32 <MDA 0.05 0.21 31.33 <MDA 20021204110622-12 1.00 -0.25 -0.99 17.32 <MDA 2.05 8.66 31.33 <MDA 20021204110742-13 1.00 -0.25 -0.99 17.32 <MDA -0:95 -4.01 31.33 <MDA 20021204110912-14 1.00 -0.25 -0.99 17.32 <MDA 0.05 0.21 31.33 <MDA 20021204111042-45 1.00 0.75 2.96 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204111202-46 '1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204111332-17 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204111452-48 1.00 -0.25 -0.99 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204111622-49 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204111742-I10 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204111912-Ill 1.00 -0.25 -0.99 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204112032-412 1.00 -0.25 -0.99 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204112202-413 1.00 0.75 2.96 17.32 <MDA -0.95 -4.01 31.33 'MDA 20021204112323-414 1.00 -0.25 -0.99 17.32 <MDA 0.05 0.21 31.33 <MDA 20021204112453-115 1.00 -0.25 -0.99 17.32 <MDA 0.05 0.21 31.33 <MDA 20021204112613-416 1.00 -0.25 -0.99 17.32 -0.95

<MDA -4.01 31.33 <MDA 20021204112743-117 1.00 0.75 2.96 17.32 -1.95

<MDA -8.24 31.33 <MDA 20021204112903-418 1.00 -0.25 -0.99. 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204113033-119 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204113153-I20 1.00 -0.25 -0.99 17.32 -0.95

<MDA -4.01 31.33 <MDA 20021204113323-421 1.00 -0.25 -0.99 17.32 <MDA 1.05 4.44 31.33 <MDA 20021204113453-122 -0.25 -0.99 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204113613-123 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204113743-424 1.00 0.75 2.96 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204113903-125 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204114033-I26 1.00 -0.25 -0.99 17.32 <MDA 0.05 0.21 31.33 <MDA 20021204114154-127 1.00 -0.25 -0.99 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204114324-I28 1.00 -0.25 -0.99 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204114444-I29 1.00 -0.25 -0.99 17.32 <MDA 0.05 0.21 31.33 <MDA

-V Performed By:7 . ,...Ae' DateLZAY/A A Page 1 I

A,.,,/V 00ol I FD-1 I~ 12002 gnAt ia VA. A/B SMEAR ANAL YSIS Survey Report 11:(,6JAM Sample ID Count Tlme Alpha Count Rate Alpha DPM Alpha MDA Flag Beta Count Rate Beta DPM Beta MDA Flag (Min) (CPM1 (DPM) (CPM)

(DPM) 20021204114614-130 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA N

Perfonned Byj, _J 2,4-W 4 0DaeL,, Date l t/v/,s Page 2 Do 2

12/oI'002 Om71 (a V,A, A BSMEAR ANAL YSIA Survey Report . 21CM Batch ID: VA Smear Analysis - 200212091406 Acquisition Date: 12/9/2002 Alpha Bkg 0.15 cpm Group: E SampleLocation:NoJ oo2 0 / Fe4 Batch Key 6,585 Beta Bkg 1.60 epm Device: LB-5100#15632 OperatingVoltage: 1,417.0 Alpha Efficiency 0.2540 Selected Geometry: Swipe/Smear Alpha to Beta Crosstalk 0.00 Beta Efficiency 0.2370 Sample ID SCount Tme Alpha Count Rate Alpha DPM Alpha MDA Beta Count Rate (lLinŽ I Beta DPM Beta MDA (CPM) (CPM)

(DPM (DPM) 20021209140651-El 1.00 -0.15 -0.59 15.82 cMDA 0.40 1.69 29.45 <MDA 20021209140831-E2 1.00 -0.15 -0.59 15.82 <MDA -1.60 -6.76 29.45 <MDA 20021209141001-E3 1.00 -0.15 -0.59 15.82 'MDA 0.40 1.69 29.45 20021209141121-E4 1.00 0.85 3.35 15.82 .CUDA 'MDA 0.40 1.69 29.45 20021209141251-E5 1.00 -0.15 -0.59 15.82 cMDA

<MDA - -1.60 -6.76 29.45 20021209141411-E6 1.00 -0.15 -0.59 15.82 <MDA

<MDA 0.40 1.69 29.45 20021209141541-E7 1.00 0.85 3.35 15.82 cMDA

<MDA 0.40 1.69 29.45 20021209141701-E8 1.00 -O.15 -0.59 15.82 'MDA

<MDA -1.60 -6.76 29.45 20021209141831-E9 1.00 0.85 3.35 15.82 <MDA

<MDA -1.60 -6.76 29.45 20021209141952-E1O 1.00 -0.15 -0.59 15.82 <MDA 'MDA

-0.60 -2.54 29.45 <MDA 20021209142122-Ell 1.00 -0.15 -0.59 15.82 'MDA

<MDA 2.40 10.14 29.45 20021209142242-E12 1.00 -0.15 -0.59 15.82 <MDA

<MDA 0.40 1.69 29.45 20021209142412-E13 1.00 -0.15 -0.59 15.82 'MDA

<MDA -0.60 -2.54 29.45 20021209142542-E14 1.00 0.85 3.35 15.82 'MDA

'MDA -0.60 -2.54 29.45 20021209142702-E15 1.00 1.85 7.30 15.82 <MDA cMDA

-1.60 -6.76 29.45 0

Performed By:-, - SCr4c.# Date '2 /19 1 Page 1 7 ,

12/A-"'002 m )a V-AA B SMEAR-ANALYS5C Survey Report 12:3,.

(PM Batch ID: VA Smear Analysis - 200212041010 Acquisition Date: 12/4/2002 Alpha Bkg 0.25 cpm Group: J SampleLocation:/JOboaa 01 WE I Batch Key 6,539 Beta Bkg 1.95 cpm Device: LB-5100 #15632 Operating Voltage: 1,417.0 Alpha Efficiency 0.2540 Selected Geometry: Swipe/Smear Alpha to Beta Crosstalk 0.00 Beta Efficiency 0.2370 Sample ID 5Count lime Aloha Count Rate Alpha DPM Alpha MDA Plag (Mln) Beta Count Mate Beta DPM Beta MDA Flag (CPM) (CPM)

(DPM (DPM) 20021204101019-J1 1.00 0.75 2.96 17.32 ZMDA -1.95 -8.24 31.33 20021204114905-J2 <MDA 1.00 -0.25 -0.99 17.32. <MDA -0.95 -4.01 31.33 <MDA 20021204115025-J3 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 20021204115155-J4 <MDA 1.00 -0.25 -0.99 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204115315-J5 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 2002120411544546 1.00 -0.25 -0.99 17.32 <MDA 4.05 17.11 31.33 20021204115615-J7 <MDA 1.00 -0.25 -0.99 17.32 <MDA 0.05 0.21 31.33 <MDA 2002120411573548 1.00 -0.25 -0.99 17.32 <MDA 1.05 4.44 31.33 <MDA 20021204115905-J9 1.00 -0.25 -0.99 17.32 <MDA 0.05 0.21 31.33 <MDA 20021204120025-J1O 1.00 0.75 2.96 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204120155-J11 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204120315-J12 1.00 -0.25- -0.99 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204120445-J13 1.00 0.75 2.96 17.32 <MDA 2.05 8.66 31.33 <MDA 20021204120606-J14 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204120736-J15 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204120856-J16- 1.00 -0.25 -0.99 17.32 <MDA -0.95 4.01 31.33 <MDA 20021204121026-J17 1.00 0.75 2.96 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204121146-J18 1.00 -0.25 -0.99 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204121316-J19 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204121436-J20 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204121606-J21 1.00 -0.25 -0.99 17.32 <MDA 0.05 0.21 31.33 <MDA 20021204121726-J22 1.00 -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204121856423 1.00 -0.25 -0.99 17.32 <MDA 0.05 0.21 31.33 <MDA 20021204122016-J24 1.00 -0.25 -0.99 17.32 <MDA 1.05 4.44 31.33 <MDA 20021204122146425 1.00 -0.25 -0.99 17.32 <MDA -1.95 -8.24 31.33 <MDA 20021204122306-J26 1.00 -0.25 -0.99 17.32 <MDA 0.05 0.21 31.33 <MDA 20021204122437-J27 1.00 0.75 2.96 17.32 <MDA 3.05 12.89 31.33 <MDA 20021204122557-J28 1.00 I -0.25 -0.99 17.32 <MDA -0.95 -4.01 31.33 <MDA 20021204122727-J29 1.00 0.75 2.96 17.32 <MDA -1.95 -8.24 31.33 <MDA ro Perform ed l By r f e Date LLV4/

. .w f- Page 1

1." 002 0 a VAA/SMEAR ANALYSI( Survey Report 12ALOPM Sample ID Count Time Alpha Count Rate Alpha DPM Aloha MDA Flat! Beta Count Rate Beta DPM Beta MDA 0142 -(CPM0) (DP15) Flag (CPM) (DPM) 20 021204122847-J30 1.00 -0.25 -0.99 17.32 <MDA -1.95 -8.24 31.33 <MDA D..

Perforned BD ateJI/S4.i4, DateL4/:4Z -L Page 2

P33 Section 6 Gamma Spectroscopy Soil Sample Reports

P34

- - G A M M A S P E C T R U M A N A L Y S I S V

Report Generated On 12/6/02 1:30:06 PM Detector- DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0116.CNF Spectrum Number VA020116.CNF Sample Description O/S Surface @ 0-6"#1 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan nels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample-Size 2.543E+002 g Sample Collection Date 11/20/02 10:50:00 AM Spectrum Collection Date 12/6/02 1:01:21 PM Decay Corrected To 11/20/02 10:50:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds A Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By X.O- 40,1 Date i/Co o/

7 0S A> '

Supervisory Review Date / 1/(/ / C2

Peak'Locate Analysis Report 12/6/02 1:30:06 PM Page 2 P35 P E A K L O C A T E R E P O R T

,A**'*********************************

II.

Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0116.CNF Spectrum Number VA020116.CNF Sample Description O/S Surface @ 0-6"#1 Sample Type Soil Peak Locate Performed on 12/6/02 1:30:05 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 743.57 0. 2830 186.12 4.04 0.6171 2 953.72 0.1945 238.66 6.99 1. 0292 3 1181.07 0. 2554 295.47 3.79 1.2784 4 1408.47 0.2071 352.28 5.72 0. 8008 5 2333.89 0. 2019 583.58 5.30 1.2212 6 2439.39 0.1922 609.91 5.51 1. 3348 7 3649.46 0.2248 912.12 3.64 1.4737 8 5850.86 0. 1313 1462.38 7.80 2.2819 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/6/02 1:30:06 PM Page 036

P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C

- - - - \GENIE2K\CAMFILES\VA-02-0116.CNF Spectrum Number VA020116. CNF Sample Description O/S Surface @ 0-6"#1 Peak Analysis Performed on 12/6/02 1:30:06 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Vncert. Counts F 1 738- 748 743.54 186.12 2. 97E+001 14.23 3.96E+001 F 2 947- 958 953.80 238.66 1. 01E+002 22.74 4. 50E+001 F 3 1175- 1188 1181.15 295.47 4. 67E+001 15.10 2.41E+001 F 4 1402- 1414 1408.50 352.28 5. 87E+001 16.15 1. 44E+001 F 5 2328- 2342 2334.15 583.58 4. 83E+001 15.23 1.28E+001 F 6 2432- 2448 2439.54 609. 91 6.15E+001 15.72 6. 54E+000 F 7 3643- 3656 3648.93 912.12 2.11E+001 11.35 9. 33E+000 F 8 5839- 5862 5851.01 1462.38 1.78E+002 25.73 0.OOE+000

-- M = First peak in a multiplet region (4@m = Other peak in a multiplet region

--F = Fitted singlet Errors quoted at. 1.96 sigma

Interference Corrected Activity Report 12/6/02 1:30:06 PM Page 4 p37 N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0116.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclrde Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.906 1460. 81* 10. 67 2.944E-005 4.627E-006 TL-208 0.432 84.90 1.52 277. 35 6.80 510.84 @ 21.60 583.14* 84.20 4.692E-007 1.515E-007 763. 13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44. 60 9.681E-007 2.304E-007 300.09 3.41 BI-214 0.263 609. 31* 46.30 1.125E-006 3.012E-007 768.36 5.04 806. 17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.459 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.196E-006 3.996E-007 351. 92* 37.20 8.792E-007 2.518E-007 RA-226 1.000 186.21* 3.28 3.411E-006 1.650E-006 U-235 0.681 89.95- 2.70 143. 76 10.50 185.71* 54.00 2.072E-007 1.OO1E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity

-Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 1216102 1:30:06 PM Page 5 P38

. *** I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

a I*D*

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0116.CNF Spectrum Number VA020116.CNF Performed & Reviewed By tp/v .

!E%(_ Date /-I/ L96 /

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name C onfidence (uCi/g Uncertainty % Uncertainty K-40 0.906 2.94E-005 4.63E-006 15.7 TL-208 @ 0.432 4. 69E-007 1.51E-007 32.3 PB-212 .0.313 9. 68E-007 2.30E-007 23.8 BI-214 0.263 1.13E-006 3.01E-007 26.8 PB-214 @ 0.459 9. 69E-007 2.13E-007 22.0

? RA-226 1.000 3.41E-006 1. 65E-006 48.4

? U-235 0.681 2. 07E-007 1.OOE-007 48.3

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 7 912.12 3.5187E-002 53. 74 A? -,5la Jt>

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P39 G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/6/02 1:33:40 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0117. CNF Spectrum Number VA020117.CNF Sample Description O/S Sub-Surf@ 6-12" #1 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chanLnels) 100 - 8192 Peak Area Range (in channe!ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.878E+002 g Sample Collection Date 11/20/02 10:50:00 AM Spectrum Collection Date 12/6/02 1:15:44 PM Decay Corrected To 11/20/02 10:50:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

tI 'Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By x (2 --.;e'e, Date / /612A.

O Supervisory Review Revie Supervisry Date AA&/6y II 4,

/ /(-/ Z>

Peak Locate Analysis Report 12/6/02 1:33:40 PM Page 2 P40

- ****PE A.K L OC A TE RE P ORT ***

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0117.CNF Spectrum Number VA020117.CNF Sample Description O/S Sub-Surf@ 6-12" #1 Sample Type Soil Peak Locate Performed on 12/6/02 1:33:39 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 369.43 0.2907 92.63 4.17 0. 6421 2 953.77 0.2075 238.59 6.40 0. 9338 3 1180.72 0.2439 295.34 3.98 1. 1492 4 1407.88 0.1939 352.14 6.59 1.0048 5 2334.86 0.2129 583.76 4.69 1.1442 6 2439.42 0. 1910 609.86 5.29 1. 3944 7 5850.97 0.1320 1462.32 8.07 2. 0940 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/6/02 1:33:40 PM PageP41 P E A K A N A L Y S I S R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0117.CNF Spectrum Number VA020117.CNF Sample Description O/S Sub-Surf@ 6-12" 1l Peak Analysis Performed on 12/6/02 1:33:39 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 366- 374 369.40 92.63 3.20E+001 15.51 4. 35E+001 F 2 943- 959 953.51 238.59 8.86E+001 21.73 6. 48E+001 F 3 1174- 1187 1180.66 295.34 4. 44E+001 14.39 1. 71E+001 F 4 1401- 1415 1407.97 352.14 7. 38E+001 17. 61 1. 11E+001 F 5 2329- 2341 2334.89 583.76 3. 92E+001 14.25 1. 47E+001 F 6 2432- 2448 2439.32 609.86 6. 31E+001 16.56 1.32E+001 F 7 5840- 5862 5850.78 1462.32 1. 57E+002 24.45 2.03E+000 M ='First peak in a multiplet region m = Other peak in a multiplet region (7 vF = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/6/02 1:33:40 PM Page 4 P42

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0117.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.913 1460.81* 10.67 2.285E-005 3.840E-006 TL-208 0.427 84.90 1.52 277.35 6.80 510.84 21.60 583.14* 84.20 3.363E-007 1.245E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 7.513E-007 1.930E-007 300.09 3.41 BI-214 0.264 609.31* 46.30 1.020E-006 2.797E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.461 53.23 1.11 74.81 6.21 77.11 10. 50 87.30 4 . 67 241.98 7.49 295.21* 19.20 1.005E-006 3.362E-007 351.92* 37.20 9.759E-007 2.-457E-007 TH-234 0.513 63.29 3.80 92.59* 5.41 2.407E-006 1.196E-006

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity -

Energy tolerance used was 2.000 Nuclide confidence index threshold = -0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/6/02 1:33:40 PM Page 5 P43

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Sample I. D. C:\GENIE2K\CAMFILES\VA-02-0117.CNF Spectrum Number VA020117.CNF Performed & Reviewed By Date /2/O / 2-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.913 2.28E-005 3.84E-006 16.8 TL-208 @ 0.427 3.36E-007 1.24E-007 37.0 PB-212 0.313 7.51E-007 1.93E-007 25.7 BI-214 0.264 1.02E-006 2. 80E-007 27. 4 PB-214 @ 0.461 9.86E-007 1. 98E-007 20.1 TH-234 0.513 2.41E-006 1.20E-006 49.7

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P44 L **** G A M M A S P E C T R U M A N A L Y S I S***

Report Generated On 12/16/02 8:07:56 PM Detector DET01 Sample I.DT C:\GENIE2K\CAMFILES\VA-02-0118.CNF Spectrum Number VA020118.CNF Sample Description O/S Surface @ 0-6" #2 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chanLnels) 100 - 8192 Peak Area Range (in channe is) 100 - 8192 Identification Energy Tole!rance 2.00 keV Sample Size 3.237E+002 g Sample Collection Date 11/20/02 11:00:00 AM Spectrum Collection Date 12/6/02 1:28:31 PM Decay Corrected To 11/20/02 11:00:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.3 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/ 02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Z. F'As-7 2131 Date /z //6 /OZ.

Supervisory Review Date -P / _ / 0.?

Peak Locate Analysis Report 12/16/02 8:07:56 PM Page 2 P45

-****** P E A K L O C A T E R E PO R T Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0118.CNF Spectrum Number VA020118.CNF Sample Description O/S Surface @ 0-6" #2 Sample Type Soil Peak Locate Performed on 12/16/02 8:07:55 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (key) 1 954.37 0.1976 238.78 6.30 1.1917 2 1181.05 0.2417 295.44 3.65 1.3630 3 1354.19 0.2628 338 .72 3.75 0.8888 4 1407.21 0.1973 352.00 5.67 1.3011 5 2334.17 0. 2129 583 .56 4.46 1. 3497 6 2439.66 0.1804 609.94 6.56 1.0056 7 3648.57 0. 2054 912.01 3.77 1.8197 8 5850.86 0.1230 1462.31 9.40 2.0361 Errors quoted at 1.96 sigma

Peak Analysis Report 12/16/02 8:07:56 PM Page P@6 P E A K A N A L Y S I S R E P O R T

' %V ************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0118.CNF Spectrum Number VA020118.CNF Sample Description O/S Surface @ 0-6" #2 Peak Analysis Performed on 12/16/02 8:07:55 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 947- 962 954.29 238.78 1.24E+002 24.35 6.72E+001 F 2 1174- 1186 1181.04 295.44 5. 03E+001 15.48 2.28E+001 F 3 1349- 1359 1354.24 338.72 2.48E+001 13.46 2. 72E+001 F 4 1401- 1416 1407.39 352.00 9. 02E+001 20.50 3. 59E+001 F 5 2327- 2341 2334.08 583.56 4.26E+001 14.25 1. 39E+001 F 6 2432- 2447 2439.65 609.94 6.56E+001 17.02 1.46E+001 F 7 3642- 3655 3648.47 912.01 3.41E+001 12.86 5. 91E+000 F 8 5839- 5862 5850.74 1462.31 2. 05E+002 28.23 8. OOE+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96'sigma

Interference Corrected Activity Report 12/16/02 8:07:56 PM Pge P47

NUCLIDE IDENTIFICATION REPORT

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0118.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g Uncertainty K-40 0. 914 1460. 81* 10. 67 2. 661E-005 4.019E-006 TL-208 0.433 84.90 1.52 277.35 6.80 510.84 @ 21.60 583. 14* 84.20 3.249E-007 1. llOE-007 763.13 1.64 860.37 12.46 PB-212 0.313 74. 82 10.70 77.11 18.00 87.30 8.00 238. 63* 44. 60 9.383E-007 1.970E-007 300.09 3.41 BI-214 0.2 62 609. 31* 46.30 9.429E-007 2.558E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377. 67 4.11 1764.49 15.80 PB-214 0.462 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4 . 67 241.98 7.49 295.21* 19.20 1.013E-006 3.227E-007 351.92* 37.20 1.060E-006 2.555E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/16/02 8:07:56 PM Page 5 P48 I N T E R F E R E N C E C O R R E C T E D R E P O R T Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0118.CNF Spectrum Number VA020118.CNF Performed & Reviewed By ___________" Date ji.=/A0t Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g Uncertainty % Uncertainty K-40 0.914 2. 66E-005 4. 02E-006 15.1 TL-208 @ 0.433 3.25E-007 1.11E-007 34.2 PB-212 0.313 9.38E-007 1. 97E-007 21.0 BI-214 0.262 9. 43E-007 2. 56E-007 27.1 PB-214 @ 0.462 1. 04E-006 2. OOE-007 19.2

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 3 338.72 4.1402E-002 54.17 -;)

F 7 912.01 5.6832E-002 37.73 -3<

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P49 G A M M A S'P E C T R U M A N A L Y S I S Report Generated On 12/6/02 1:57:03 PM Detector DETO1 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0ii9.CNF Spectrum Number VA020119.CNF Sample Description O/S Sub- Surface @ 6-12"#2 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan,nels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 3.048E+002 g Sample Collection Date 11/20/02 11:00:00 AM Spectrum Collection Date 12/6/02 1:39:52 PM Decay Corrected To 11/20/02 11:00:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date -/1./& /eJ.2=-

. ,/%_ _.

/

Supervisory Review Date _A // / lo.-

/

Peak Locate Analysis Report 12/6/02 1:57:03 PM Page 2 P50 P E A K L O C A T E R E PO R T Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0119.CNF Spectrum Number VA020119.CNF Sample Description O/S Sub- Surface @ 6-12"#2 Sample Type Soil Peak Locate Performed on 12/6/02 1:57:02 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.78 0. 1910 238.62 7.31 0.9803 2 1180.01 0.24 68 295.18 4.63 0.8302

.3 1408.04 0.2068 352.22 5.28 1.3662 4 2334.94 0.2087 583.83 4.59 1. 4797 5 2438.95 0.1868 609.74 5.66 1. 3416 6 3649.43 0.2117 912.19 3.94 1. 6049 7 5851.70 0.1291 1462.55 8.80 2.0801 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/6/02 1:57:03 PM Pagep54

- - - - P E AK A NA LY-S IS R EP OR T***

Detector DET01 Sample I.D. C:\GENI]E2K\CAMFILES\VA-02-0119.CNF Spectrum Number VA020119.CNF Sample Description O/S Sub- Surface @ 6-12"#2 Peak Analysis Performed on 12/6/02 1:57:02 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 947- 962 953.65 238.62 1. 16E+002 23.47 6.04E+001 F 2 1175- 1186 1180.00 295.18 3.98E+001 14.61 2.27E+001 F 3 1400- 1417 1408.26 352.22 8.44E+001 19.14 2.96E+001 F 4 2326- 2343 2335.16 583.83 5. 75E+001 15.93 1.78E+001 F 5 2430- 2446 2438.83 609.74 6.37E+001 16.24 9. 94E+000 F 6 3643- 3656 3649.21 912.19 2. 95E+001 11.18 2. 33E+000 F 7 5839- 5862 5851.70 1462.55 1. 73E+002 25.65 2.09E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/6/02 1:57:03 PM Page 4 P52

- - - - NUCLIDE I-DENTIFICATION REPORT *****

Sample I.D.. C:\GENIE2K\CAMFILES\VA-02-0119.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.886 1460.81* 10.67 2.379E-005 3.831E-006 TL-208 0.425 84.90 1.52 277.35 6.80 510.84 @ 21.60 583. 14* 84.20 4.657E-007 1. 331E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44.60 9.284E-007 2.008E-007 300.09 3.41 BI-214 0.266 609.31* 46.30 9.719E-007 2.596E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.461 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 8.493E-007 3.199E-007 351. 92* ,37.20 1.054E-006 2.534E-007

= Energy line found in the spectrui mn.

@ = Energy line not used for Weighte i Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Intkerference Corrected Activity Report 1216102 1:57:03 PM Page 5 p53 I N T E R F E R E N C E C O R R E C T E D R E PORT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0119.CNF Spectrum Number VA020119.CN-F Performed & Reviewed By , ,

Date f_

_ I&/S Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g Uncertainty % Uncertainty K-40 0.886 2.38E-005 3. 83E-006 16.1 TL-208 @ 0.425 4.66E-007 1. 33E-007 28.6 PB-212 0.313 9.28E-007 2. 01E-007 21.6 BI-214 0.266 9.72E-007 2. 60E-007 26.7 PB-214 @ 0.461 9.75E-007 1. 99E-007 20.4

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@= nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F IE D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 6 912.19 4.9240E-002 37.85 eg JQZ M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P54 G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/6/02 2:06:37 PM Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0120. CNF Spectrum Number VA020120.CNF Sample Description O/S Surface @ 0- 6"#3 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan.nels) 100 - 8192 Peak Area Range (in channeIls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.961E+002 g Sample Collection Date 11/20/02 11:10:00 AM Spectrum Collection Date 12/6/02 1:53:42 PM Decay Corrected To 11/20/02 11:10:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

'l9 Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date /___

_ ;_ .2 Supervisory Review Date /.2///* / e

Peak Locate Analysis Report 12/6/02 2:06:37 PM Page 2 P55

- - - - P E A K L O C A T E R E PO R T I-*********************************** ****************** *** **************** ***

Detector DETOI Sample I.D. C:\GENIE2K\CAMFILES\VA-02--0120.CNF Spectrum Number VA020120.CNF Sample Description O/S Surface @ 0- 6"#3 Sample Type Soil Peak Locate Performed on 12/6/02 2:06:36 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 954.68 0.2031 238.67 6.10 1.2888 2 1180.60 0.2242 295.30 5.28 0. 8001 3 1407.80 0.2074 352.11 4.93 1. 4048 4 2334.02 0.2311 583.61 3.68 1.7011 5 2438.32 0.2033 609.76 4.53 1.6040 6 5851.95 0.1294 1462.57 8.28 2. 1489 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/6/02 2:06:37 PM Page P§6 P E A K A N A L Y S I S R EP O R T

,iv ***************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0120.CNF Spectrum Number VA020120.CNF Sample Description 0/S Surface @ 0- 6"#3 Peak Analysis Performed on 12/6/02 2:06:36 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 961 953.84 238. 67 1.03E+002 23.20 7.51E+001 F 2 1175- 1186 1180.47 295.30 5. 09E+001 16.43 2.87E+001 F 3 1400- 1416 1407.81 352.11 8.41E+001 18.41 2.01E+001 F 4 2329- 2342 2334.27 583.61 3. 81E+001 12.99 5. 16E+000 F 5 2430- 2447 2438.91 609.76 5.88E+001 15.71 1. 05E+001 F 6 5840- 5862 5851.78 1462.57 1.75E+002 25.78 1.96E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma.

Interference Corrected Activity Report 12/6/02 2:06:37 PM Page 4 P57

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

J ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0120.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

....................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity I Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.883 1460. 81* 10.67 2.485E-005 3.971E-006 TL-208 0.431 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.174E-007 1.105E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44.60 8.468E-007 2. 018E-007 300.09 3.41 BI-214 0.266 609. 31* 46.30 9.233E-007 2.573E-007 768. 36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377. 67 4.11 1764.49 15.80 PB-214 0.461 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.120E-006 3.733E-007 351. 92* 37.20 1.080E-006 2.519E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Intetference Corrected Activity Report 12/6/02 2:06:37 PM Page 5 P58

- - I N T E R F E R E N C E C O R R E C T E D R E PO R T ***

N ************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0120.CNF Spectrum Number VA020120.CIJF Performed & Reviewed By Date __ __6 /O 2-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name , Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.883 2.49E-005 3. 97E-006 16.0 TL-208 @ 0.431 3.17E-007 l.llIE-007 34.8 PB-212 0.313 8.47E-007 2.02E-007 23.8 BI-214 0.266 9.23E-007 2. 57E-007 27.9 PB-214 @ 0.461 1.09E-006 2.09E-007 19.1

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P59

- - G A M M A S P E C T R U M A N A L Y S I S

"'V ********************************************************************

Report Generated On 12/6/02 2:18:39 PM Detector DET01 Sample I.D. C:\GE!NIE2K\CAMFILES\VA-02-0121.CNF Spectrum Number VA020121.CNF Sample Description O/S Sub-Surface @ 6-12" #3 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 3.429E+002 g Sample Collection Date 11/20/02 11:10:00 AM Spectrum Collection Date 12/6/02 2:05:28 PM Decay Corrected To 11/20/02 11:10:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 1

_W14 Performed & Reviewed By al . Date /t2(/P/b/c 1

Supervisory Review Date JR _/ A& 1.00

-Peak Locate Analysis Report 12/6/02 2:18:39 PM Page 2 P60 Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0121.CNF Spectrum Number VA020121.CNF Sample Description O/S Sub-Surface @ 6-12" #3 Sample Type Soil Peak Locate Performed on 12/6/02 2:18:38 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.95 0.1907 238.66 6.64 1. 0993 2 1408.33 0. 1879 352.28 5.90 1. 3700 3 2439.15 0.2060 609.79 4.57 1. 5400 4 3649.83 0.2072 912.44 4.07 1. 5703 5 5852.39 0. 1280 1462.79 8.70 2.0885 Errors quoted at 1. 96 sigma I

Peak Analysis Report 12/6/02 2:18:39 PM Page Al P E A K A N A L Y S I S R E PO R T 1s J * * * * * ** * * * * * * ** * * * * * * * ** * * * * * * ** * * * * * *

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0121.CNF Spectrum Number VA020121.CNF Sample Description O/S Sub-Surface @ 6-12" #3 Peak Analysis Performed on 12/6/02 2:18:38 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 947- 959 953.81 238.66 1.27E+002 24.54 4. 90E+001 F 2 1401- 1416 1408.49 352.28 1. 14E+002 20.97 1. 65E+001 F 3 2430- 2446 2439.03 609.79 5. 80E+001 16.01 1.70E+001 F 4 3643- 3657 3650.23 912.44 3.32E+001 12.42 6.00E+000 F 5 5840- 5864 5852.65 1462.79 1.85E+002 26.61 4.15E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet

(,,_Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/6/02 2:18:39 PM Page 4 P62

N U C L I D E I D E N T I F I C A T IO N R EPORT *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0121.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0. 855 1460.81* 10.67 2.272E-005 3.553E-006 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44.60 9.030E-007 1.877E-007 300.09 3.41 BI-214 0.265 609. 31* 46.30 7.869E-007 2.259E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

-Interference Corrected Activity Report 12/6/02 2:18:39 PM Page 5 P63

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Sample I. D. C:\GENIE2K\CAMFILES\VA-02-0121.CNF Spectrum Number VA020121.CNF st a~k Performed & Reviewed By Date / oG /o 2-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g Uncertainty % Uncertainty K-40 0.855 2.27E-005 3.55E-006 15.6 PB-212 0.313 9.03E-007 1.88E-007 20.8 BI-214 0.265 7.87E-007 2.26E-007 28.7

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S * ** * *** ***

(j Peak Energy Peak Size in Peak CPS

'SW) No.' (keV) Counts per Second % Uncertainty F 2 352.28 1.8948E-001 18.44 A6 - z.,I F 4 912.44 5.5330E-002 - 37.41 /Fc,2.2, M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P64 G A M M A S P E C T R U M A N A L Y S I S

.W************************************************************************

Report Generated On 12/6/02 2:37:13 PM Detector DET01 Sample I.D. C:\GENIE2K\CA.MFILES\VA-02-0122.CNF Spectrum Number VA020122.CNF Sample Description O/S Surface @ 0- 6"#4 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan nels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.771E+002 g Sample Collection Date 11/20/02 11:55:00 AM Spectrum Collection Date 12/6/02 2:16:52 PM Decay Corrected To 11/20/02 11:55:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

"PBackground Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02

'Calibration Geometry Used 2 Performed & Reviewed By X0 - 9 Z"

&", Date /Q/O I/O.2 Supervisory Review A_ r t Date / 1_/ C6

Peak Locate Analysis Report 12/6/02 2:37:13 PM Page 2 P65 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C:'\GENIE2K\CAMFILES\VA-02-0122.CNF Spectrum Number VA020122.CNF Sample Description O/S Surface @ 0- 6"#4 Sample Type Soil Peak Locate Performed on 12/6/02 2:37:12 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 307.36 0. 2804 77.16 4.45 0.7170 2 954.33 0. 2065 238.72 5.76 1.1961 3 1407.96 0.2389 352.18 3.52 1.5471 4 2439.44 0. 2280 609.98 3.68 1.9301 5 3649.87 0. 1999 912.09 4.18 1. 5663 6 5852.27 0.1312 1462.69 7.47 2. 3417 Errors quoted at 1.96 sigma

Peak Analysis Report 12/6/02 2:37:13 PM PageP6§ P E A K A N A L Y S I S R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0122.CNF Spectrum Number VA020122.CNF Sample Description 0/S Surface @ G- 6"#4 Peak Analysis Performed on 12/6/02 2:37:12 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 302- 311 307.48 77.16 4.77E+001 18.04 5.97E+001 F 2 945- 961 954.04 238.72 1. 10E+002 23.29 6.86E+001 F 3 1401- 1417 1408.09 352.18 5. 79E+001 16.09 2.55E+001 F 4 2431- 2447 2439.78 609.98 4.68E+001 13.00 2.83E+000 F 5 3643- 3657 3648.79 912.09 3..28E+001 12.64 6.38E+000 F 6 5840- 5865 5852.27 1462.69 1. 91E+002 26.52 0.OOE+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet

&IILErrors quoted at 1.96 sigma

Interference Corrected Activity Report 12/6/02 2: 37: 13 PM Page 4 P67

- - - - N U C L I D E I D E N T I F I C A T IO N R E PO R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0122.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... . IDENTIFIED

.. NUCLIDES .....................

Nuclide Id Energy Yield Activity r Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.868 1460.81* 10.67 2.895E-005 4.405E-006 PB-212 0.613 74.82 10.70 77.11* 18. 00 1.574E-006 6.200E-007 87.30 8.00 238.63* 44.60 9.695E-007 2.180E-007 300.09 3.41 BI-214 0.261 609.31* 46.30 7.854E-007 2.270E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.264 53.23 1.11 74.81 6.21 77.11* 10.50 2.698E-006 1.062E-006 87.30 4.67 241.98 7.49 295.21 19.20 351.92* 37.20 7.958E-007 2.300E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/6/02 2:37:13 PM' Page 5 P68

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0122.CNF Spectrum Number VA020122.CNF Performed & Reviewed By /Z Ar?.1o Date la /&S /02_

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.868 2.89E-005 4.40E-006 15.2 PB-212 0.613 9.84E-007 2.02E-007 20.5 BI-214 0.2 61 7.85E-007 2.27E-007 28.9 PB-214 @ 0.264 8.05E-007 2.21E-007 27.4

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S I Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 5 912.09 5.4644E-002 3 8. 5 5-/9zt-,~A 9 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P69 G A M M A S P E C T R U M A N A L Y S I S

.~'

_e,,*******.***************************

Report Generated On 12/16/02 8:13:49 PM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0123.CNF Spectrum Number VA020123.CNF Sample Description O/S Sub-Surf@ 6-12"1#4 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.750E+002 g Sample Collection Date 11/20/02 11:55:00 AM Spectrum Collection Date 12/6/02 2:35:45 PM Decay Corrected To 11/20/02 11:55:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds 1 e% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/ 02 Calibration Geometry Used 2 Performed & Reviewed By I , Z-r,, , Date It //4 /102 Supervisory Review -0 Date 22j1_A/ OL

Peak Locate Analysis Report 12/16/02 8:13:49 PM Page 2 P70 P E A K L O C A T E R E P O R T

.,***** * ***************s *************** ****************************************

Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0123.CNF Spectrum Number VA020123.CNF Sample Description O/S Sub-Surf@ 6-12"#4 Sample Type Soil Peak Locate Performed on 12/16/02 8:13:48 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.96 0. 1909' 238.64 6.93 1.1835 2 1180.84 0. 2 621 295. 40 3.63 1.3174 3 1353.60 0.2441 338.56 4.13 0.9515 4 1409.06 0.2114 352.40 4.66 1.2253 5 2335.00 0.2046 583.77 4.90 1. 6435 6 2648.78 0.2275 662. 26 4.03 1.3071 7 3864.77 0.2328 966.14 3.51 1. 6321 8 3881.48 0.2248 970.12 3.53 1. 6353 9 5852.67 0.1309 1462.78 7.96 2.2326 Errors quoted at 1.96 sigma

12/16/02 8:13:49 PM Page pil Peak Analysis Report

- - - - P E A K A N A L Y S I S R E P 0 R T tv,@***************************************

Detector DET01

-Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0123.CNF Spectrum Number VA020123.CNF Sample Description O/S Sub-Surf@ 6-12"#4 Peak Analysis Performed on 12/16/02 8:13:48 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts 946- 961 953. 74 238.64 1. 39E+002 25.26 6.66E+001 F 1 1175- 1191 1180.88 295.40 4. 68E+001 14.78 2. 55E+001 F 2 3 1347- 1358 1353.59 338.56 3. 10E+001 13.02 1.49E+001 F

4 1403- 1415 1409.00 352.40 6. 47E+001 17. 65 2. 41E+001 F

5 2326- 2342 2334.90 583.77 6.54E+001 16.00 8. 42E+000 F

6 2643- 2655 2649.02 662.26 2. 92E+001 11 . 92 7.26E+000 F

7 3858- 3888 3865.13 966.14 2.28E+001 9.80 0. OOE+000 M

8 3858- 3888 3881.03 970.12 2. 63E+001 10.39 0. OOE+000 m

9 5842- 5864 5852. 62 1462.78 1.71E+002 25.30 0. OOE+000 F

First peak in a multiplet region Other peak in a multiplet region Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/16/02 8:13:49 PM Page 4 P72

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0123.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ...IDENTIFIED NUCLIDES Nuclide Id Energy Yield ActivityI Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.856 1460.81* 10.67 2.611E-005 4.192E-006 CS-137 0.985 661. 65* 85.12 2.872E-007 1.185E-007 TL-208 0. 427 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 5.871E-007 1.494E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44.60 1.230E-006 2.429E-007 300.09 3.41 PB-214 0.458 53.23 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295. 21* 19.20 1.108E-006 3.622E-007 351.92* 37.20 8.957E-007 2.546E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/16/02 8:13:49 PM Page 5 P73 I. *** ***********************************

I N T E R F E R E N C E CRREC T ED R E PO R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0123.CNF Spectrum Number VA020123.CNF Performed & Reviewed By Date /z / 6 lo_

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g Uncertainty % Uncertainty K-40 0.856 2. 61E-005 4.19E-006 16.1 CS-137 0.985 2. 87E-007 1. 19E-007 41.3 TL-208 @ 0.427 5.87E-007 1. 49E-007 25.4 PB-212 0.313 1.23E-006 2.43E-007 19.7 PB-214 @ 0.458 9. 66E-007 2. 08E-007 21.6

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma I*** U N I D E N T I F I E D P E A K S

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 3 338.56 5.1641E-002 42.01 A C-M 7 966.14 3.7918E-002 43.07 1 4aPD m 8 970.12 4.3846E-002 39.49 PC, ;g M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P74

- - - - G************************************A************************I

,* G A M MA S PE CT R UM A NAL Y SI S***

i"- 2** * * ********************* ** ** * ********************************* *** **

Report Generated On 12/6/02 4:04:58 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0124.CNF Spectrum Number VA020124.CNF Sample Description 0/S Surface@ 0-6" #5 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.569E+002 g Sample Collection Date 11/20/02 12:15:00 PM Spectrum Collection Date 12/6/02 2:54:15 PM Decay Corrected To 11/20/02 12:15:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds v/% Dead Time 0.04 %

--- Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By __ .________ Date -Q)/ _ /

Supervisory Review ,aZ076&A Date _9 / /W / Z?-

?eak Locate Analysis Report 12/6/02 4:04:58 PM Page 2 P75 P E A K L O C A T E R E P O R T A8V*************************************

Detector DETOI Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0124.CNF Spectrum Number VA020124.CNF Sample Description O/S Surface@ 0-6" #5 Sample Type Soil Peak Locate Performed on 12/6/02 4:04:57 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 954.22 0.2169 238.70 4.49 1. 3430 2 1181.01 0. 2404 295.40 4.36 1. 0405 3 1408.09 0. 2158 352.19 4.80 1.2132 4 2334.54 0. 2263 583.73 4.11 0. 9372 5 2439.12 0. 2308 609.80 3.54 1. 5349 6 3648.23 0. 2171 911.93 3.82 1. 5645 7 5852.16 0. 1297 1462.68 8.65 2. 0774 Errors quoted at 1.96 sigma

Peak Analysis Report 12/6/02 4:04:58 PM Page 076 P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0124.CNF Spectrum Number VA020124.CNF Sample Description 0/S Surface@ 0-6" #5 Peak Analysis Performed on 12/6/02 4:04:57 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 946- 961 953.98 238.70 9.78E+001 21.04 4. 80E+001 F 2 1175- 1186 1180.88 295.40 3.93E+001 14.71 2.09E+001 F 3 1400- 1415 1408.16 352.19 6.26E+001 16.34 1. 70E+001 F 4 2328- 2342 2334.75 583.73 3. 06E+001 12. 04 1.06E+001 F 5 2431- 2446 2439.07 609.80 3. 62E+001 13.24 1.47E+001 F 6 3642- 3655 3648.16 911.93 2. 80E+001 11.36 3.59E+000 F 7 5840- 5863 5852.22 1462.68 1. 63E+002 24.95 1. 98E+000 m = First peak in a multiplet region Other peak in a multiplet region

-@ F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/6/02 4:04:58 PM Page 4 P77 N U C L I D E I D E N T I F I C A T IO N R E P O RT

- - W*** **** *********************** ** *** ********* ******************* *********

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0124.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ...IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.869 1460. 81* 10.67 2.658E-005 4.401E-006 TL-208 0.428 84.90 1.52 277.35 6.80 510.84 @ 21.60 583. 14* 84.20 2.940E-007 1. 175E-007 763.13 1.64 860.37 12.46 PB-212 0. 313 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44.60 9.292E-007 2. 121E-007 300.09 3.41 BI-214 0.265 609. 31* 46.30 6.549E-007 2.452E-007 768.36 5.04 806. 17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214- 0.461 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 9.963E-007 3. 821E-007 351.92* 37.20 9.280E-007 2.532E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/6/02 4:04:58 PM - Page 5 P78

- I N T E R F E R E N C E C OR R E C T E D R E PO R T ***

I ***********************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0124.CNF Spectrum Number VA020124.CNF Performed & Reviewed By Date /e/O/2 Nuclide Wt mean Wt mean Wt mean Nuclide Id ActivityI Activity Activity Name Confidence (uCi/g Uncertainty % Uncertainty K-40 0.869 2. 66E-005 4. 40E-006 16.6 TL-208 @ 0.428 2. 94E-007 1.18E-007 40.0 PB-212 0.. 313 9. 29E-007 2.12E-007 22.8 BI-214 0.265 6.55E-007 2. 45E-007 37.4 PB-214 @ 0.461 9. 49E-007 2. 11E-007 22.2

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@*= nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I"E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 6 911.93 4.6635E-002 40.62 19e-..-29g s eF-M = First peak in a multipiet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma I'

P79' G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/6/02 4:06:08 PM Detector DET01 Sample !.D. C:\GE]RNIE2K\CAMFILES\VA-02-0125 .CNF Spectrum Number VA020125.CNF le

,/0a Sample Description O/S Sub-Surf@ .DO-- #5 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.694E+002 g Sample Collection Date 11/20/02 12:15:00 PM Spectrum Collection Date 12/6/02 3:05:34 PM Decay Corrected To 11/20/02 12:15:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration PEerformed On 11/13/02 Efficiency Calibraticon Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By X. 40-o Date 42J06ea Supervisory Review 0

"t4G D

Date 1

.i9/7/ /&

Peak Locate Analysis Report 12/6/02 4:06:08 PM Pa~ge 2 PBO P E A K L O C A T E R E P O R T

{ik

{in ***** ** ***** **************** ************* ** ********* **** *********** * ****

Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0125.CNF Spectrum Number VA020125.CNF Sample Description O/S Sub-Surf@ 0-6" #5 Sample Type Soil Peak Locate Performed on 12/6/02 4:06:07 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 298.36 0. 3135 74.76 3.74 0. 4420 2 954.28 0. 1978 238.78 6.44 1.0650 3 1181.03 0. 2399 295.46 4.76 0. 9219 4 1408.94 0.2143 352.37 4.84 1. 2363 5 2439.09 0. 2082 609.85 4.52 1.4626 6 5852.48 0. 1374 1462.76 7.33 2. 3070 Errors quoted at 1.96 sigma

Peak Analysis Report 12/6/02 4:06:08 PM Page hi1

, *****P E AK A N A LYS IS R EP OR T***

Detector *DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0125.CNF Spectrum Number VA020125.CNF Sample Description 0/S Sub-Surf@ 0-6" #5 Peak Analysis Performed on 12/6/02 4:06:07 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net-Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 295- 302 297.89 74.76 2.30E+001 14. 63 6.13E+001 F 2 949- 960 954. 30 238.78 1. 02E+002 22.60 4. 60E+001 F 3 1177- 1188 1181.12 295.46 4.35E+001 14.87 1. 85E+001 F 4 1403- 1416 1408.87 352.37 6.10E+001 16.91 2.20E+001 F 5 2433- 2447 2439.27 609.85 4.49E+001 13.85 7.50E+000 F 6 5841- 5864 5852.52 1462.76 1.51E+002 23.87 1. 93E+000 M = First peak in a multiplet region

-m = Other peak in a multiplet region Fitted singlet

__ Fv=

Errors quoted at 1. 96 sigma

Interierence Corrected Activity Report 12/6/02 4:06:08 PM Page, 4 P82

** NU C L IDE I DE NTI F IC A T ION R EP O RT ***

', V ******* **** **** ***** ** ********** ************* ***************** ** *** ** ****

Sample I.D. C:\bENIE2K\CAMFILES\VA-02-0125.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g Uncertainty K-40 0.859 1460. 81* 10.67 2.359E-005 4.OOOE-006 PB-212 0.484 74.82* 10.70 1.424E-006 9.201E-007 77.11 18.00 87.30 8.00 238. 63* 44.60 9.229E-007 2.166E-007 300.09 3.41 BI-214 0.264 609. 31* 46.30 7.757E-007 2.468E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.560 53.23 @ 1.11

74. 81* 6.21 2.453E-006 1.579E-006 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.052E-006 3.702E-007 351. 92* 37.20 8. 615E-007 2.487E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Cor-rected Activity Report 12/6/02 4:06:08 PM Page 5 P83

-** I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0125.CNF Spectrum Number VA020125.CNF Performed & Reviewed By -

Date /, /c':/aO Nuclide Wt mean Wt mean Wt mean

Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.859 2. 36E-005 4.OOE-006 17. 0 PB-212 0.484 9.21E-007 2.07E-007 22.5 BI-214 0.264 7.76E-007 2.47E-007 31.8 PB-214 @ 0.560 9.19E-007 2.01E-007 21.9

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

i_

P84 Q I*G A MM A S PE CT R UM A NA LYS I S***

Report Generated On 12/6/02 4:07:13 PM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0125A.CNF Spectrum Number VA020125.ACNF Sample Description O/S Sub-Surf@ 6-12" #5( QC)

Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.710E+002 g Sample Collection Date 11/20/02 12:15:00 PM Spectrum Collection Date 12/6/02 3:19:21 PM Decay Corrected To 11/20/02 12:15:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

', 9% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By XC4 .- Date' /1-7/ G _02_

Supervisory Review Date /-A- //4. / AO

Peak Locate Analysis Report 12/6/02 4:07:13 PM Page 2 P85 P E A K L O C A T E R E PO R T 7i.

Detector DET01 Sample I.D. C:'\GENIE2K\CAMFILES\VA-02-0125A.CNF Spectrum Number VA020125.ACNF Sample Description O/S Sub-Surf@ 6-12" #5( QC)

Sample Type Soil Peak Locate Performed on 12/6/02 4:07:13 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.78 0. 2099 238.62 5.87 1. 0446 2 1179.79 0.2729 295.06 3.57 0. 8411 3 1407.88 0.2132 352.18 5.38 0. 9102 4 2333.70 0. 2348 583.47 3.60 1. 3162 5 2440.27 0.1932 610.06 5.45 1. 3796 6 5851.53 0. 1350 1462.56 7.68 2. 3183 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/6/02 4:07:13 PM Page h6 P E A K A N A L Y S I S R E P O R T ** *

A *************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0125A.CNF Spectrum Number VA020125.ACNF Sample Description O/S Sub-Surf@ 6-12" #5J( QC)

Peak Analysis Performed on 12/6/02 4:07:13 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 947- 959 953.66 238.62 8.76E+001 21.26 4.74E+001 F 2 1173- 1186 1179.53 295.06 3.12E+001 13.15 2.37E+001 F 3 1401- 1415 1408.10 352. 18 5. 88E+001 16.54 2.110E+001 F 4 2328- 2341 2333.72 583.47 2. 89E+001 11.62 6. 64E+000 F 5 2432- 2447 2440.12 610.06 5.54E+001 15.15 6. 38E+000 F 6 5840- 5863 5851.73 1462.56 1. 63E+002 24.70 2.04E+000

= First peak in a multiplet region

= Other peak in a multiplet region

= Fitted singlet Errors quoted at 1.96 sigma

Enterference Corrected Activity Report 12/6/02 4:07:13 PM Page 4 P87 le

- - - N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0125A.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB 40 ... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0. 885 1460.81* 10.67 2.524E-005 4. 137E-006 TL-208 0.434 84. 90 1.52 277.35 6.80 510.84 @ 21.60 583. 14* 84.20 2.628E-007 1.074E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74. 82 10.70 77.11 18.00 87.30 8.00 238. 63* 44.60 7.893E-007 2.007E-007 300.09 3.41 BI-214 0.259 609. 31* 46.30 9.513E-007 2.708E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.461 53.23 @ 1.11 74.81 6.21

77. 11 10.50 87.30 4.67 241.98- 7.49 295.21* 19.20 7.494E-007 3.220E-007 351. 92* 37.20 8.263E-007 2.415E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/6/02 4:07:13 PM Page 5 P88 t** I N T E R F E R E N C E

. ************************************ C O R R E C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0125A.CNF Spectrum Number VA020125.ACNF Performed & Reviewed By c/1. 4 , Date 2 /06 /c2-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g Uncertainty % Uncertainty K-40 0.885 2.52E-005 4. 14E-006 16.4 TL-208 @ 0.434 2.63E-007 1.07E-007 40.9 PB-212 0.313 7.89E-007 2. 01E-007 25.4 BI-214 0.259 9.51E-007 2. 71E-007 28.5 PB-214 @ 0.461 7. 99E-007 1.93E-007 24.2

? = nuclide is part of an undetermined solution X -=nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P89

- - - A*********************************************** *********************

ge**GA MAS PE C T RUM A NA L YSI S*** ***

Report Generated On 12/6/02 4:08:29 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\TVA-02-0126.CNF Spectrum Number VA020126.CNF Sample Description O/S Surface@ 0-6" #6 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan.nels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.770E+002 g Sample Collection Date 11/20/02 12:20:00 PM Spectrum Collection Date 12/6/02 3:33:23 PM Decay Corrected To 11/20/02 12:20:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds W Dead Time 0.04 %

"- Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 76t1 #

Performed & Reviewed By Date /-Z/ °6 / 02.

Supervisory Review 4 7 eL -9~ - Date _I //14 / 1

Peak Locate Analysis Report 12/6/02 4:08:29 PM Page 2 P90 f*** ** **** *** ** *** ****** ************************ * ******* ***** *****************

P E A K L O C A T E R E P O R T I *************************************

Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0126.CNF Spectrum Number VA020126. CNF Sample Description O/S Surface@ 0-6" #6 Sample Type Soil Peak Locate Performed on 12/6/02 4:08:28 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.79 0.2013 238.62 6.33 1. 0670 2 1180.41 0. 2535 295.31 3.93 1. 4585 3 1353.78 0. 2497 338.51 3.76 1.2762 4 1408.45 0. 2094 352.24 5.37 1.1181 5 5852.05 0.1298 1462.67 8. 00 2.2141 Errors quoted at 1. 96 sigma

IPeak Analysis Report 12/6/02 4:08:29 PM Page 091 P E A K A N A L Y S I S R E P O R T

. ****** ****'****S ************************** *********************** ***********

Detector DET01 Sample I.D. C:\GENI]E2K\CAMFILES\VA-02-0126.CNF Spectrum Number VA020126.CNF Sample Description 0/S Surface@ 0-6" #6 Peak Analysis Performed on 12/6/02 4:08:28 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Eniergy Net Peak Net Area Continuum No. start end centroid (IkeV) Area Uncert. Counts F 1 947- 960 953.63 238.62 1.02E+002 23.23 6. 88E+001 F 2 1174- 1190 1180.52 295.31 5.95E+001 16.22 2. 71E+001 F 3 1346- 1359 1353.42 338.51 3.91E+001 13.22 1.28E+001 F 4 1398- 1414 1408.36 352.24 6.56E+001 17.50 2.96E+001 F 5 5841- 5864 5852.18 1462.67 1.83E+002 26.36 3.70E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet 4&,Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/6/02 4:08:29 PM' Page 4 P92

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0126.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

....................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 I0. 871 1460.81* 10.67 2.770E-005 4.352E-006 PB-212 0.313 74.82 10.70 77.11 18. 00 87.30 8.00 238. 63* 44. 60 9.031E-007 2.159E-007 300.09 3.41 PB-214 0.460 53.23 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.398E-006 3.988E-007 351. 92* 37.20 9. 011E-007 2. 511E-007

= Enerigy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/6/02 4:08:29 PM Page 5 P93

-*** I NT E R FE RE NCE CO RR EC T ED R EP OR T **

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0126.CNF Spectrum Number VA020126.CNF Performed & Reviewed By Date ,;./oG /02 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.871 2.77E-005 4.35E-006 15.7 PB-212 0.313 9.03E-007 2.16E-007 23.9 PB-214 @ 0.460 1.04E-006 2.12E-007 20.4

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96-sigma U N I D E N T I F I E D P E A K S **** ** ***

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 3 338.51 6.5186E-002 33.80 Ad,.M g g M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P94

- - - GA MM A SP EC TR U M ANAL Y SI S KW ************k**** **** ********** ** *********** ********* **** ********** ****

Report Generated On 12/6/02 5:04:23 PM Detector DET01 Sample I.D. C:\GE"NIE2K\CAMFILES\VA-02-0127.CNF Spectrum Number VA020127.CNF Sample Description O/S Sub- Surface@ 6-12" #6 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification.Energy Tolerance 2.00 keV Sample Size 2.833E+002 g Sample Collection Date 11/20/02 12:20:00 PM Spectrum Collection Date 12/6/02 4:49:46 PM Decay Corrected To 11/20/02 12:20:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By X41 - Date /. /eOc/p Supervisory Review --o.41 ne Date 1A / A/ / eH5i

'Peak Locate Analysis Report 12/6/02 5:04:23 PM Page '2P9 P E A K LtO C A T E R E P O R T Detector DET01 Sample I.D. C:'\GENIE2K\CAMFILES\VA-02-0127.CNF Spectrum Number VA020127.CNF Sample Description O/S Sub- Surface@ 6-12" #6 Sample Type Soil Peak Locate Performed on 12/6/02 5:04:22 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 - 953.35 0.1934 238.50 6.38 1.1315 2 14-06.76 0.2083 351.80 4.93 1.4845 3 2332.46 0.2099 583.21 4.63 1. 3381 4 2437.02 0.2090 609.31 3.91 1. 6894 5 3645.78 0.2122 911.38 3.93 1.5496 6 5847.37 0.1301 1461.42 8.13 2. 2193 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/6/02 5:04:23 PM p Paged P E A K A N A L Y S I S R E P O R T i,1 ***************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0127.CNF Spectrum Number VA020127.CNF Sample Description 0/S Sub- Surface@ 6-12" #6 Peak Analysis Performed on 12/6/02 5:04:22 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 947- 960 953.18 238.50 1.17E+002 23.99 5. 99E+001 F 2 1399- 1415 1406.59 351.80 9.13E+001 19.27 2.42E+001 F 3 2327- 2340 2332. 66 583.21 3.94E+001 13.42 7.99E+000 F 4 2430- 2445 2437.13 609.31 5.15E+001 14.92 1. 07E+001 F 5 3638- 3652 3645.98 911.38 3. 09E+001 11.85 6. 17E+000 F 6 5836- 5859 5847.16 1461.42 1. 81E+002 26.26 4.27E+000 First peak in a multiplet region Other peak in a multiplet region Fitted singlet Errors quoted at 1. 96 sigma

,Interference Corrected Activity Report 12/6/02 5:04:23 PM Page 4 P97

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0127.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%-) (uCi/g ) Uncertainty K-40 0.985 1460.81* 10.67 2.688E-005 4.234E-006 TL-2 08 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.432E-007 1. 193E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18. 00 87.30 8.00 238. 63* 44.60 1.006E-006 2.204E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 8.449E-007 2.539E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference

.- Corrected Activity Report 12/6/02 5:04:23 PM Page .5P98

- - I N T E R F E R E N C E C O R R E C T E D R E PO R T Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0127.CNF Spectrum Number VA020127.CNF, Performed & Reviewed By Date /Z1-/6-/

12-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.985 2.69E-005 4.23E-006 15.8 TL-208 @ 0.437 3.43E-007 1.19E-007 34 . 8 PB-212 0.313 1.01E-006 2.20E-007 21.9 BI-214 0.269 8.45E-007 2. 54E-007 30.1

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis,

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S ********

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.80 1.5220E-001 21.10 A6.2JG,1 &;r F 5 911.38 5.1538E-002 38.31 C-,9e.72- doy M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

I P99 GA MM A SP EC TR U M ANAL Y SI S Report Generated On 12/7/02 6:03:15 AM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0128.CNF Spectrum Number VA020128.CNF Sample Description O/S Surface@ 0-6" #7 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chanmels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole!rance 2.00 keV Sample Size 2.489E+002 g Sample Collection Date 11/20/02 12:30:00 PM Spectrum Collection Date 12/6/02 5:05:01 PM Decay Corrected To 11/20/02 12:30:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By W<- Date ./2o 71/L2-Supervisory Review ,-O, a_ __2 Date /_;/ 11 /e21

Peak Locate Analysis Report 12/7/02 6:03:15 AM Page P1 00

P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C:\ ,GENIE2K\CAMFILES\VA-02-0128.CNF Spectrum Number VA020128.CNF Sample Description O/S Surface@ 0-6" #7 Sample Type Soil Peak Locate Performed on 12/7/02 6:03:14 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.39 0. 2203 238.49 5.34 1. 1234 2 1179.20 0.2558 295.01 3.88 1. 5245 3 1406.93 0.2201 351.82 5.03 1. 1961 4 2332.50- 0. 2287 583.16 3.92 1.0609 5 2437.32 0. 2093 609.35 4.80 1. 0608 6 5847.08 0.1299 1461.41 7.64 2. 1816 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 6:03:15 AM Pagtpl 0-P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0128.CNF Spectrum Number VA020128.CNF Sample Description O/S Surface@ 0-6" #7 Peak Analysis Performed on 12/7/02 6:03:14 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 944- 959 953.14 238.49 7.90E+001 20.48 5. 66E+001 F 2 1172- 1186 1179.30 295.01 5. 19E+001 14.18 1.01E+001 F- 3 1399- 1412 1406.67 351. 82 5. 97E+001 16.12 1.51E+001 F 4 2326- 2339 2332.46 583.16 2.88E+001 11.92 1. 04E+001 F 5 2431- 2444 2437.29 609.35 3.95E+001 13.36 9.09E+000 F 6 5835- 5859 5847.14 1461.41 1.77E+002 26.39 8.33E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02~ 6:03:15 AM Page '+102

NUCLIDE IDE.NTIFICATION REPORT

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0128.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.986 1460.81* 10.67 2. 981E-005 4. 821E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 2.859E-007 1.198E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 7.746E-007 2.093E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 7. 371E-007 2.563E-007 768.36 5.04

-06. 17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.462 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.358E-006 3.878E-007 351.92* 37.20 9.122E-007 2.569E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 6:03:15 AM Page -+l03

- *** I N T E R F E R E N C E C OR R E C T E D R E PO R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0128.CNF Spectrum Number VA020128.CNF r I,-

Performed & Reviewed By 1 Date /9Z7/_ E2-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.986 2.98E-005 4.82E-006 16.2 TL-208 @ 0.437 2.86E-007 1.20E-007 41.9 PB-212 0. 313 .7.75E-007 2. 09E-007 27. 0 BI-214 0.269 7.37E-007 2.56E-007 34.8 PB-214 @ 0c.462 1.05E-006 2.14E-007 20.4

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

P104

-*** G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/7/02 8:42:49 AM Detector DET01 -

Sample I.D. C:\GE'NIE2K\CAMFILES\VA-02-0129.CNF Spectrum Number VA020129.CNF Sample Description O/S Sub-Surf 6-12" #7 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 key Sample Size 2.715E+002 g Sample Collection Date 11/20/02 12:30:00 PM Spectrum Collection Date 12/7/02 7:10:12 AM Decay Corrected To 11/20/02 12:30:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date /2/07/02-'

Supervisory Review ?c6~2 Suprvsoyevew at Date'TV 14I-

/,;t/

Peak Locate Analysis Report 12/7/02 8:42:49 AMA Page 2P10 P EA K LO0C A TE R EPO0R T Detector DET01 Sample I.D. C: \GENIE2K\CAM'FILES\VA-02-0129 .CNF Spectrum Number VA020129.CNF Sample Description 0/S Sub-Surf 6-12"1 #7 Sample Type Soil Peak Locate Performed on 12/7/02 8:42:48 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak .Search Sensitivity 3. 50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 952. 34 0. 1967 238. 31 6. 62 1.1 670 2 1179. 01 0. 2513 295. 12 3.98 1. 1943 3 1405. 94 0. 1966 351. 72 5.99 1. 1240 4 2332. 98 0.2227 583. 32 3. 99 1. 5070 5 2436. 99 0. 1930 609. 28 5. 36 1. 2 938 6 3645. 78 0.2009 911. 35 4.27 1. 5635 7 .5846. 31 0. 1230 14 61. 18 9.2 6 2. 0322 Errors quoted at 1.96 sigma I

i

Peak Analysis Report 12/7/02 8:42:49 AM Page,,.:;,

P E A K A N A L Y S I S R E P O R T

.W) *******************s********************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0129.CNF Spectrum Number VA020129.CNF Sample Description O/S Sub-Surf 6-12" #7 Peak Analysis Performed on 12/7/02 8:42:48 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1. 944- 961 952.40

238.31 1.28E+002 23.99 6.35E+001 F 2 1174- 1188 1179.76 295.12 4. 16E+001 14.53 2. 02E+001 F 3 1400- 1413 1406.27 351.72 7. 59E+001 18.12 1. 51E+001 F 4 2326- 2340 2333.09 583.32 3. 70E+001 13.63 1. 36E+001 F 5 2430- 2446 2437.01 609.28 5.56E+001 15.42 1.01E+001 F 6 3639- 3652 3645.84 911.35 3.87E+001 13.22 6. 82E+000 F 7 5835- 5858 5846.23 1461.18 2. 06E+002 28.38 8. OOE+000 First peak in a mu'ltiplet region Other peak in a multiplet region Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 8:42:49 AM Page 4P107

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

i* *************************************************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0129.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

. ........ ..... ,IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.994 1460.81* 10.67 3.182E-005 4.812E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.368E-007 1.261E-007 763.13 1.64 860.37 12.46 PB-212 0.311 74.82 10.70

- 77.11 18.00 87.30 8.00 238.63* 44. 60 1. 150E-006 2.326E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 9. 512E-007 2.746E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.461 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 9.966E-007 3.582E-007 351.92* 37.20 1.064E-006 2.676E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was .2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 8:42:49 AM Page 5P108

- - I N T E R F E R E N C E C RRE C T E D R E P O R T ***

Sap. IVD. C: \GENIE2K\CAMFILES\VA-02-0 129. CNF Sample I. D. C:\GENIE2K\CAMFILES\VA-02-0129.CNF Spectrum Number VA020129.CNF 4 Performed & Reviewed By aS-Zf . 7- Date f1-/e7 / Cr2-b Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.994 3. 18E-005 4. 81E-006 15.1 TL-208 @ 0.437 3.37E-007 1.26E-007 37.5 PB-212 0.311 1.15E-006 2. 33E-007 20.2 BI-214 0.269 9.51E-007 2.75E-007 28.9 PB-214 @ 0.461 1. 04E-006 2.14E-007 20.6

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 6 911.35 6.4513E-002 34.16 4d - 9 jge M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P109 G A M M-A S P E C T R U M A N A L Y S I S 1****************************************************************** ****

Report Generated On 12/7/02 8:43:46 AM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0130.CNF Spectrum Number VA020130.CNF Sample Description 0/S Surface 0-6" #8 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chanLnels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tolexrance 2.00 keV Sample Size 2.596E+002 g Sample Collection Date 11/20/02 12:40:00 PM Spectrum Collection Date 12/7/02 7:23:19 AM Decay Corrected To 11/20/02 12:40:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date / 07/02-e2 Supervisory Review ,<_

.9:. Date .2k/a i / o

'-i d

Peak Locate Analysis Report 12/7/02 8:43:46 AM Page 2pjjO P E-A K L O C A T E R E PO R T AL.J-*** *** **

Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0130.CNF Spectrum Number VA020130.CNF Sample Description O/S Surface 0-6" #8 Sample Type Soil Peak Locate Performed on 12/7/02 8:43:45 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA -Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 952.95 0. 2171 238.39 5.51 1.2131 2 2333.21 0.2189 583.37 3. 94 1. 5322 3 2437.60 0.2000 609.30 4.79 1. 5852 4 5846.71 0. 13 98 1461.28 7.06 2. 3290 Errors quoted at 1.96 sigma (r,'

Peak Analysis Report 12/7/02 8:43:46 AM Pagep, ?1 P E A K A-N.A L Y S I S R E P O-R T Detector -DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0130.CNF Spectrum Number VA020130.CNF Sample Description O/S Surface 0-6" #8 Peak Analysis Performed on 12/7/02 8:43:45 AM Peak Analysis From Channel 100 Peak Analysis To-Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 961 952.75 238.39 9.58E+001 21.50 6. 32E+001 F 2 2327- 2340 2333.30 583.37 4.01E+001 13.47 9.33E+000 F 3 2429- 2445 2437.08 609.30 6.03E+001 15.89 1.16E+001 F 4 5835- 5858 5846.62 1461.28 1.50E+002 23.82 1. 91E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma J

Interference Corrected Activity Report 12/7/02 8:43:46 AM Page 4P1 1 2

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0130.CNF Nuclide Library Used C: \GENIE2K\CAMFILES\MYAP.NLB

.................... . IDENTIFIED

.. NUCLIDES ......................

Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0. 991 1460.81* 10.67 2.426E-005 4.135E-006 TL-208 0.436 84.90 1.52 277.35 -6.80 510.84 @ 21.60 583. 14* 84.20 3.813E-007 1.308E-007 763.13 1.64 860.37 12.46 PB-212 0.312 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44. 60 9. 001E-007 2.133E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 1.079E-006 2. 971E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

,= Energy line found in the spectrum.

@= Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 8:43:46 AM page 5P113

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0130.CNF Spectrum Number VA020130.CNF Performed & Reviewed By Y(" Xe Date J./__

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.991 2.43E-005 4. 14E-006 17.0 TL-208 @ 0.436 3. 81E-007 1.31E-007 34.3 PB-212 0.312 9. OOE-007 2. 13E-007 23.7 BI-214 0.269 1.08E-006 2. 97E-007 27.5

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P114 G A M M A S P E C T R U M. A N A L Y S I S.

I ***********************************************************************

Report Generated On 12/7/02 8:46:33 AM Detector DET01 Sample I.D. C:\GE'NIE2K\CAMFILES\VA-02-0131.CNF Spectrum Number VA020131.CNF Sample Description O/Sub-Surface 6-12" #8 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.501E+002 g Sample Collection Date 11/20/02 12:40:00 PM Spectrum Collection Date 12/7/02 7:34:57 AM Decay Corrected To 11/20/02 12:40:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By ge!. Date / ,0/o7/e'2-Supervisory Review Supervisry Reie Date Date /,/

'/. ,/c-o,0O-

/ /61/

Peak Locate Analysis Report 12/7/02 8:46:33 AM Page 2P115

'!`

P E A K L O C A T E R E P O R T i ,** **** ***** ********** ************* ****************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0131.CNF Spectrum Number VA020131.CNF Sample Description O/Sub-Surface 6-12" #8 Sample Type Soil Peak Locate Performed on 12/7/02 8:46:32 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.05 0.2040 238.45 6.06 1. 1559 2 1180.11 0.2516 295.23 3.63 1. 4885 3 1406.46 0.2109 351.74 4.38 1.2452 4 2331.48 0.2297 583.07 3.57 1. 7678 5 2437.00 0.2140 609.30 4.40 1. 3839 6 5846.50 0. 1428 1461.12 6.89 2.2829 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 8:46:33 AM Page pdB S ' ***** P E A K A N A L Y S I S R E PO R T 11***************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0131.CNF Spectrum Number VA020131.CNF Sample Description O/Sub-Surface 6-12" #8 Peak Analysis Performed on 12/7/02 8:46:32 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 944- 959 952.95 238.45 1.14E+002 23.62 6. 54E+001 F 2 1173- 1188 1180.21 295.23 5. 64E+001 15.10 1.56E+001 F 3 1399- 1412 1406.34 351.74 5. 95E+001 16.64 1.87E+001 F 4 2325- 2338 2332.11 583.07 3. 85E+001 12.41 4. 67E+000 F 5- 2430- 2446 2437.07 609.30 4. 71E+001 14.74 1.33E+001 F 6 5835- 5857 5845.99 1461.12 1. 27E+002 21.92 2. 01E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 8:46:33 AM Page 4P117 N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2KjCAMFILES\VA-02-0131.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-4 0 0.996 1460.81* 10.67 2.137E-005 3. 910E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.798E-007 1.252E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1.112E-006 2.454E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 8.758E-007 2.826E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10

- 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.462 53.23 @ 1.11 7.4.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.469E-006 4.120E-007 351.92* 37.20 9.041E-007 2.632E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 8:46:33 AM Page 5P11 8 1,1 *** I N T E R F E R E N C E C O R R E C T E D R E P O R T Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0131.CNF Spectrum Number VA020131.CNF Performed & Reviewed By 6se ^ Date ; G2/.2-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.996 2. 14E-005 3.91E-006 18.3 TL-208 @ 0.437 3. 80E-007 1.25E-007 33.0 PB-212 0.313 1. 11E-006 2.45E-007 22.1 BI-214 0.269 8. 76E-007 2.83E-007 32.3 PB-214 @ 0.462 1.07E-006 2.22E-007 20.8

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

= nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P119

G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/7/02 8:50:57 AM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0132.CNF Spectrum Number VA020132.CNF Sample Description O/Surface 0-6" #9 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.631E+002 g Sample Collection Date 11/20/02 12:55:00 PM Spectrum Collection Date 12/7/02 7:48:10 AM Decay Corrected To 11/20/02 12:55:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By S rD Date /;)/

' 07/ OnL_

Supervisory Review IOG 01 6 Date _X / A, / OP,

Peak Locate Analysis Report 12/7/02 8:50:57 AM Page 2P120 P E A K L O C A T E R E P O R T i )*************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0132.CNF Spectrum Number VA020132.CNF Sample Description O/Surface 0-6" #9 Sample Type Soil Peak Locate Performed on 12/7/02 8:50:56 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.10 0.2070 238.45 5.73 1.2319 2 1179.53 0.24 67 295.13 3.82 1. 2935 3 1406.69 0.2041 351.77 5.66 1.2356 4 2331.59 0.2187 582.98 3.94 1. 5358 5 2436.47 0.2058 609.16 4. 66 1. 2832 6 5845.29 0.1430 1461.04 6.36 2.4484 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 8:50:57 AM Pge P1@

P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0132.CNF Spectrum Number VA020132. CNF Sample Description O/Surface 0-6" #9 Peak Analysis Performed on 12/7/02 8:50:56 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 961 952.95 238.45 1. 20E+002 23.81 7. 05E+001 F 2 1172- 1187 1179.80 295.13 5.08E+001 15.00 1.99E+001 F 3- 1399- 1413 1406.48 351.77 7. 89E+001 18.58 2.26E+001 F 4 2324- 2338 2331.76 582.98 4. 18E+001 13.37 7. 50E+000 F 5 2430- 2443 2436.53 609.16 3. 93E+001 13.47 9. 11E+000 F 6 5834- 5857 5845.64 1461.04 1.39E+002 .22.75 4. OOE+000 First peak in a multiplet region Other peak in a multiplet region Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/7/02 8:50:57 AM Page- 4P122 N U C L I D E I D E N T I F I C A T IO N R E P O RT t -~~ * ** *** ** ** ** * ** ** ** * *** ************************************** * * *** * ** ***

Sample I.'D. C:\GENIE2K\CAMFILES\VA-02-0132.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ..IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-4 0 0.998 1460.81* 10.67 2.211E-005 3.880E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.915E-007 1.283E-007 763.13 1.64 860.37 12. 46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44. 60 1. 111E-006 2.364E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 6.931E-007 2. 441E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4. 11 1764.49 15.80 PB-214 0.462 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.257E-006 3.858E-007 351.92* 37.20 1.141E-006 2.836E-007

= Energy line found in the spectruin.

@ = Energy line not used for Weighteci Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 8:50:57 AM Page 5P1 23

- - I N T E R F E R E N C E C OR R E C T E D R E PO R T ***

Sm I.D.

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0132.CNF Spectrum Number VA020132.CNF Performed & Reviewed By _ _ .__

_ _ _ Date /IA2Zi2 /Gt2-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g Uncertainty % Uncertainty K-40 0.998 2.21E-005 3.88E-006 17.6 TL-208 @ 0.437 3.92E-007 1.28E-007 32. 8 PB-212 0.313 1.11E-006 2.36E-007 21.3 BI-214 0.269 6. 93E-007 2. 44E-007 35.2 PB-214 @ 0.462 1.18E-006 2.29E-007 19.3

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S ***

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P124 G A M M A S P E C T R U M A N A L Y S I S

\w*** ** ** *** ************** **** ********* *********************************

Report Generated On 12/7/02 8:52:01 AM Detector DET01 Sample I.D. C:\GEI9IE2K\CAMFILES\VA-02-0133.CNF Spectrum Number VA020133.CNF Sample Description O/Sub-Surface 6-12" #9 Sample Type Soil Sample Geometry 2 Peak Locate Threshold - 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.470E+002 g Sample Collection Date 11/20/02 12:55:00 PM Spectrum Collection Date 12/7/02 8:00:57 AM Decay Corrected To 11/20/02 12:55:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

i, Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 fell Performed & Reviewed By a A-- . 7',e0Zft,- Date 47JO7/ Z_

Supervisory Review g:

Ir Date /4/ _/6/ ad

Peak Locate Analysis Report 12/7/02 8:52:01 AM Page 2P125 P E A K L O C A T E R E PO R T Detector DETOI Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0133.CNF Spectrum Number VA020133.CNF Sample Description O/Sub-Surface 6-12" #9 Sample Type Soil Peak Locate Performed on 12/7/02 8:52:00 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 742.36 0.28 62 185.85 3.56 0. 8529 2 953.37 0.2026 238.50 6.28 1. 0807 3 1179.23 0.2721 295.03 3.58 1.0000 4 1405.86 0.2156 351.61 4.77 1. 3712

.5 2331.41 0.2233 582.89 3.80 1.4763.

6 2436.17 0.2131 609.10 4. 23 1. 4396 7 5846.28 0. 1324 1461.16 8. 15 1. 8562 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 8:52:01 AM Pagep 12 6

@ *****P EA K A NA LY S IS R EP OR T***

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0133.CNF Spectrum Number VA020133.CNF Sample Description O/Sub-Surface 6-12" #9 Peak Analysis Performed on 12/7/02 8:52:00 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 737- 747 742.46 185.85 3. 49E+001 15.32 3. 68E+001 F 2 945- 960 953.16 238.50 1.04E+002 23.12 7. OOE+001 F 3 1175- 1184 1179.41 295.03 2.35E+001 11.24 *2.09E+001 F 4 1399- 1413 1405.84 351.61 6. 87E+001 16.74 1.47E+001 F 5 2324- 2338 2331.39 582.89 3.95E+001 13.50 1. 25E+001 F 6 2429- 2444 2436.27 609.10 4. 26E+001 14.04 1. 19E+001 F 7 5834- 5857 5846.14 1461.16 1. 39E+002 23.78 1. 19E+001 M = First peak in a multiplet region

= Other peak in a multiplet region

= Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 8:52:01 AM Page 4P127 N-U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0133.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g. ) Uncertainty K-40 0.995 1460.81* 10.67 2.355E-005 4.297E-006 TL-208 0.436 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.942E-007 1.376E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44.60 1.032E-006 2.415E-007 300.09 3.41 BI-214 0.268 609.31* 46.30 8. 021E-007 2. 717E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238. 11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.460 53.23 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 6.188E-007 3.007E-007 351.92* 37.20 1.058E-006 2. 712E-007 RA-226 0.995 186.21* 3.28 4.132E-006 1. 831E-006 U-235 0.685 89.95 2.70 143.76 10.50 185.71* 54.00 2.509E-007 1.111E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 8:52:01 AM Page 5P128

-IN T E R F E R E N C E C O R R E C T E D R E PO R T ***

~i s ***********************************************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0133.CNF Spectrum Number VA020133.CNFL Performed & Reviewed By Date Z/7/ e-2, Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Accivity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.995 2.35E-005 4. 30E-006 18.2 TL-208 @ 0.436 3. 94E-007 1.38E-007 34.9 PB-212 0.313 1.03E-006 2. 41E-007 23.4 BI-214 0.268 8. 02E-007 2.72E-007 33.9 PB-214 @ 0.460 8. 61E-007 2.01E-007 23.4

? RA-226 0.995 4. 1-3E-006 1.83E-006 44.3

? U-235 0.685 2. 51E-007 l.llE-007 44.3

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P1 29

G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/7/02 8:29:11 AM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0134.CNF Spectrum Number VA020134.CNF Sample Description O/Surface 0-6" #10-Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chanmels) 100 - 8192 Peak Area Range (in channe!ls) 100 - 8192 Identification Energy Tole!rance 2.00 keV Sample Size 2.153E+002 g Sample Collection Date 11/20/02 1:10:00 PM Spectrum Collection Date 12/7/02. 8:14:28 AM Decay Corrected To 11/20/02 1:10:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date _Z/S7,/°.

A Rview Supervsory '3/4k2 Dte IA/b /e29 Supervisory Review Date A/fi/-Ai

'Peak Locate Analysis Report 12/7/02 8:29:11 AM Page 2P130 P E A K. L O C A T E R E P O R T

,*1 **************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0134.CNF Spectrum Number VA020134.CNF Sample Description O/Surface 0-6" #10 Sample Type Soil Peak Locate Performed on 12/7/02 8:29:10 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.14 0.2220 238.42 5.02 1. 2835 2 1406.19 0.2308 3,51.70 3.91 1.4725 3 2436.57 0.2070 609.21 4.59 1. 3920 4 5845.74 0. 1351 1461.06 7.58 2.1409 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 8:29:11 AM Page p~i1 P E A K A N A L Y S I S R E PO R T i **************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0134.CNF Spectrum Number VA020134.CNF Sample Description O/Surface 0-6" #10 Peak Analysis Performed on 12/7/02 8:29:10 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 959 952.83 238.42 8.66E+001 20.61 4.89E+001 F 2 1399- 1415 1406.20 351.70 6.26E+001 16.63 2-.51E+001 F 3 2429- 2445 2436.73 609.21 4.66E+001 14.16 9.84E+000 F 4 5835- 5858 5845.72 1461.06 1.46E+002 23.46 0.OOE+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 8:29:11 AM Page 4P132 L J***** N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0134.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.998 1460.81* 10.67 2.850E-005 4.905E-006 PB-212 0.312 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 9.811E-007 2.452E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 1.007E-006 3.159E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@= Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

interference Corrected Activity Report 12/7/02 8:29:11 AM Page 5P1 33

, *** I N T E R F E R E N C E C O R R E C T E D R E PO R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0134.CNF Spectrum Number VA020134.CNF Performed & Reviewed By Date /cZ/ 0712/e2 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity I Activity Activity Name Confidence (uCi/g Uncertainty % Uncertainty K-40 0.998 2.85E-005 4.90E-006 17.2 PB-212 0.312 9. 81E-007 2.45E-007 25.0 BI-214 0.269 1.01E-006 3.16E-007 31.4

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.70 1.0433E-001 26.56 f ~/- f4C &

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet.

Errors quoted at 1.96 sigma

P134

-I _*.******* ****************************************************************

t i*** G A M M A S P E C T R U M A N A L Y S I S***

Report Generated On 12/7/02 8:40:13 AM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0135.CNF Spectrum Number VA020135.CNF Sample Description O/S Sub-Surface 6-12" #10 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.639E+002 g Sample Collection Date 11/20/02 1:10:00 PM Spectrum Collection Date 12/7/02 8:26:53 AM Decay Corrected To 11/20/02 1:10:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date SuerisryReie -~ Dte'-4 Supervisory Review Date At / /6,/ dA

Peak Locate Analysis Report 12/7/02 8:40:18 AM Page 2P135

'**** P E A K L O C A T E RE P O R T t} *************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0135.CNF Spectrum Number VA020135.CNF Sample Description 0/S Sub-Surface 6-12" #10 Sample Type Soil Peak Locate Performed on 12/7/02 8:40:12 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 306.43 0.3049 76. 92 3.67 0. 5938 2 952.75 0. 1975 238.40 6.49 1. 2299 3 1180.28 0.2509 295.12 3.93 1. 4136 4 1406.15 0. 2344 351.60 3.58 1. 6457 5 2436.20 0.2126 609.11 4.59 1. 1672 6 3645.98 0.1939 911.36 4.75 1. 5056 7 5846.97 0.1325 1461.46 8. 03 1. 9895 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 8:40:13 AM PagepJS6.

P E A K A N A L Y S I S R E P O R T

.Detector - DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0135.CNF Spectrum Number VA020135.CNF Sample Description 0/S Sub-Surface 6-12" #10 Peak Analysis Performed on 12/7/02 8:40:12 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area' Uncert. Counts F 1 302- 313 306.53 76. 92 4. 02E+001 18.59 9.47E+001 F 2 944- 959 952.77 238.40 1. 37E+002 24.72 5.84E+001 F 3 1170- 1187 1179.76 295.12 5.56E+001 15.93 2.72E+001 F 4 1398- 1415 1405.78 351.60 6. 95E+001 16.80 2.33E+001 F 5 2430- 2443 2436.33 609.11 3. 93E+001 14.83 2.10E+001 F 6 3638- 3655 3645.89 911.36 4. 09E+001 13.18 4. 69E+000 F 7 5837- 5858 5847.35 1461.46 1. 50E+002 24.47 6. 83E+000 First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 8:40:13 AM Page 4P1 37 NUCLIDE ID-ENTIFICATION REPORT

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0135.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.983 1460.81* 10.67 2.383E-005 4. 166E-006 PB-212 0.611 74.82 10.70

77. 11* 18.00 1.405E-006 6.672E-007 87.30 8.00 238. 63* 44.60 1.263E-006 2.479E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 6.926E-007 2.669E-007 768.36 5.04 806.17 1.23 934.06 3.21, 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-224 0.639 53.23 @ 1.11 74.81 6.21 77.11* 10.50 2.408E-006 1.143E-006 87.30 4.67 241.98 7.49 295.21* 19.20 1.371E-006 4.092E-007 351. 92* 37.20 1.002E-006 2.549E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted MeanrActivity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma rfi%0 I '.,

Interference Corrected Activity Rtport 12/7/Q2 8:40:13 AM Page 5P138-

- - I N T E R F E R E N C E C O R R E C T E D R E P O RT Sample* **D*

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0135.CNF Spectrum Number VA020135.CNF Performed & Reviewed By 4, I Date _-1/G')/ Q7--O Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.983 2. 38E-005 4. 17E-006 17.5 PB-212 0.611 1.21E-006 2.27E-007 18.9 BI-214 0.269 6. 93E-007 2.67E-007 38.5 PB-214 @ 0.639 1.08E-006 2. 08E-007 19.3

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S * ** *****

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 6 911.36 6.8209E-002 32.22 hVZ.7S 2 -

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P139 I

,*** G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/7/02 8:57:34 AM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0136.CNF Spectrum Number VA020136.CNF Sample Description O/S Surface 0-6" #11 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channe!ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.439E+002 g Sample Collection Date 11/20/02 1:25:00 PM Spectrum Collection Date 12/7/02 8:38:23'AM Decay Corrected To 11/20/02 1:25:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By YO, ; 2,140Z'o, Z, % Date /Z /07 / 2.

Supervisory Review S u p vi r R _ _: I Date /e / 14 /O.R

Peak Locate Analysis Report 12/7/02 8:57:34 AM Page 2P140 A***********

- - - - E K L *R*E*

- - - - PE AK L OC A TE RE PO RT ***

Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0136.CNF Spectrum Number VA020136.CNF Sample Description O/S Surface 0-6" #11 Sample Type Soil Peak Locate Performed on 12/7/02 8:57:33 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00

- Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.66 0.2033 238.57 5.56 1.2110 2 1407.00 0.2235 351.89 4.84 1.3926 3 2333.83 0.2319 583.54 3.56 1.4114 4 2436.83 0. 2033 609.25 5.01 1.2384 5 5845.93 0. 1346 1461.16 7.64 2.2681 Errors quoted at 1.96 sigma

Peak Analysis Report P12/7/02 8:57:34 AM Pagep1 41 P E A K A N A L Y S I S R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0136.CNF Spectrum Number VA020136.CNF Sample Description 0/S Surface 0-6" #11 Peak Analysis Performed on 12/7/02 8:57:33 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 946- 960 953.46 238.57 1. 13E+002 23.42 5. 91E+001 F 2 1398- 1414 1406.94 351.89 6. 95E+001 17. 03 2.13E+001 F 3 2326- 2340 2333.97 583.54 3. 69E+001 13.62 1. 50E+001 F 4 2429- 2445 2436.86 609.25 4. 79E+001 14.49 1. 07E+001 F 5 5835- 5857 5846.13 1461.16 1. 58E+002 24.27 0.OOE+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet 9A Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 8:57:34 AM Page 4P142 N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0136.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

....................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activityr Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.995 1460.81* 10.67 2. 714E-005 4.504E-006 TL-208 0.433 84.90 1. 52 277.35 6.80 510.84 21.60 583. 14* 84.20 3.731E-007 1.403E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44. 60 1.132E-006 2.497E-007 300.09 3.41 BI-214 0.269 609. 31* 46.30 9.124E-007 2.854E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4. 11 1764.49 15.80

=.Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 8:57:34 AM Page 5 P143 I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

't ***** *********** ******** ***** ** *** *** ********* *********** *** *************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0136.CNF Spectrum Number VA020136.CNF Performed & Reviewed By. xe- Date /__ /c5)

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity' Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.995 2. 71E-005 4.50E-006 16.6 TL-2 08 @ 0.433 3. 73E-007 1. 40E-007 37.6 PB-212 0.313 1.13E-006 2.50E-007 22.1 BI-214 0.269 9.12E-007 2. 85E-007 31.3

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty

-F 2 351.89 1.1580E-001 24.50 &7 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P144

- - GA MM A S PE C TR UM A NA LYS I S***

Report Generated On 12/7/02 8:58:29 AM Detector - DET01 Sample I.D. C:\GE]qIE2K\CAMFILES\VA-02-0136A.CNF Spectrum Number VA020136A.CNF Sample Description O/S Surface 0-6" #l1(QC)

Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 3.492E+002 g Sample Collection Date 11/20/02 1:25:00 PM Spectrum Collection Date 12/7/02 8:49:57 AM Decay Corrected To 11/20/02 1:25:00 PM Collected By L. Finn Live Time 602.6 seconds J Real Time 602.8 seconds

% Dead Time 0.03 %

'T Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 T

Performed & Reviewed By ';f&' Date 2<? 67/e2-Supervisory Review -, :' *,-

Z--'( ,"a ? 2 Date /_

ft,{

Peak Locate Analysis Report .270 12/7/02 8:58:29

82 AM MPg Page P4 2P145 P E-AK LO0C A TE R E POR T .

Detector DETOI Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0136A. CNF Spectrum Number VA020136GA. CNF Sample Description 0/S Surface 0-6" #11 (QC)

Sample Type Soil Peak Locate Performed on 12/7/02 8:58:28 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953. 66 0. 2033 238. 57 5.56. 1.2110 2 1407. 00 0.2235 351. 89 4 .84 1.3926 3 2333. 83 0.2319 583. 54 3.56 1. 4114 4 2436. 83- 0. 2033 609. 25 5.01 1.2384 5 5845. 91 0. 1338 1461. 15 7.76 2.2523 Errors quoted at 1.96 sigma

Peak Analysis Report 12/7/02 8:58:29 AM Page P146 P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0136A.CNF Spectrum Number VA020136A.CNF Sample Description O/S Surface 0-6" #11(QC)

Peak Analysis Performed on 12/7/02 8:58:28 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 946- 960 953.46 238. 57 1. 13E+002 23.42 5. 91E+001 F 2 1398- 1414 1406.94 351.89 6. 95E+001 17. 03 2.13E+001 F 3 2326- 2340 2333.97 583.54 3. 69E+001 '13.62 1.50E+001 F 4 2429- 2445 2436.86 609.25 4. 79E+001 14. 49 1.07E+001 F 5 5835- 5857 5846.11 1461.15 1. 59E+002 24.41 0. OOE+000

- M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet i)Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 -8:58:29 AM Page 4P147

- - - - NUCLIDE IDENTIFICATION REPORT *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0136A.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g Uncertainty K-40 0.995 1460.81* 10.67 1.905E-005 3.153E-006 TL-208 0.433 84.90 1.52 277.35 6.80 510.84 21.60 583.14* 84.20 2.595E-007 9.758E-008 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 7.871E-007 1.737E-00.7 300.09 3.41 BI-214 0.269 609.31* 46.30 6.345E-007 1.985E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@= Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

2nterference Corrected Activity Report 12/7/02 8:58:29 AM Page 5P148

*** I N T E R F E R E N C E C O R R E C T E D R E PO R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0136A.CNF Spectrum Number VA020136A.CNE.

Performed & Reviewed By ,

Date _2- / ?2 /O2,-

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.995 1. 91E-005 3. 15E-006 16.5 TL-208 @ 0.433 2.59E-007 9. 76E-008 37.6 PB-212 0.313 7.87E-007 1.74E-007 22.1 BI-214 0.269 6.35E-007 1.99E-007 31.3

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.89 1.1531E-001 24.50 / f d M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P149 GA MM A SP EC TR U M ANAL Y SI S 4t@ ************************************

Report Generated On 12/7/02 9:10:29 AM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0137.CNF Spectrum Number VA020137.CNF Sample Description O/S Sub-Surface6-12"#11 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan nels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.623E+002 g Sample Collection Date 11/20/02 1:25:00 PM Spectrum Collection Date 12/7/02 8:57:03 AM Decay Corrected To 11/20/02 1:25:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

K.i Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By .r"n CrN%--. 5 4-

-1W Date / I,

/ a7/

Supervisory Review Date -- /P/A /

Peak Locate Analysis Report 12/7/02 9:10:29 AM Page 2 P150 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0137.CNF Spectrum Number VA020137.CNF Sample Description O/S Sub-Surface6-12"#11 Sample Type Soil Peak Locate Performed on 12/7/02 9:10:28 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.17 0.2019 238.45 6.62 1. 0686 2 1179.77 0.2321 295.18 4.62 0. 8380 3 1407.34 0.2053 351.99 5.65 1. 0484 4 2331.68 0.2128 582.96 4.67 1. 0904 5 2436.38 0. 2021 609.08 5.00 1.2097 6 3646.37 0.2271 911.62 3.51 0.9150 7 5846.14 0. 1373 1461.22 7.25 2. 3226 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 9:10:29 AM Page p -I P E A K A N A L -Y S I S R E P *****

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0137.CNF Spectrum Number VA020137.CNF Sample Description O/S Sub-Surface6-12"#11 Peak Analysis Performed on 12/7/02 9:10:28 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 942- 959 952.95 238.45 1.10E+002 23.37 6. 92E+001 F 2 1173- 1185 1180.00 295.18 3. 93E+001 14.06 2. 04E+001 F 3 1400- 1413 1407.35 351.99 5. 99E+001 16.39 1. 73E+001 F 4 2326- 2339 2331.65 582.96 3.37E+001 12.84 1.11E+001 F 5 2430- 2443 2436.19 609.08 5. 05E+001 16.15 1. 84E+001 F 6 3640- 3654 3646.95 911.62 2.21E+001 10.80 1. 05E+001 F 7 5835- 5857 5846.39 1461.22 1. 47E+002 23.75 3.70E+000 M = First peak in a multiplet region

= Other peak in a multiplet region

m = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 9:10:29 AM Page 4 P15 2 k**** N U C L I D E I D E N T I F I C A T IO N R E PO R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0137.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... .. IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g Uncertainty K-40 0.993 1460.81* 10.67 2.354E-005 4.073E-006 TL-208 0.436 84.90 1.52 277.35 6.80 510.84 @ 21.60 583. 14* 84.20 3.173E-007 1.227E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70

-77.11 18.00 87.30 8.00 238. 63* 44.60 1.021E-006 2.308E-007 300.09 3.41 BI-214 0.268 609.31* 46.30 8.950E-007 2.947E-007 768.36 5.04 806. 17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 K PB-214 0.462 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 9.759E-007 3.583E-007 351. 92* 37.20 8.692E-007 2.476E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used-was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Intherference Corrected Activity Report 12/7/02 9:10:29 AM Page 5P153 I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

~ vM Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0137.CNF Spectrum Number VA020137.CNFe Performed & Reviewed By Date __L/C7 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.993 2. 35E-005 4.07E-006 17.3 TL-208 @ 0.436 3. 17E-007 1.23E-007 38 . 7 PB-212 0.313 1.02E-006 2.31E-007 22.6 BI-214 0.268 8. 95E-007 2. 95E-007 32.9 PB-214 @ 0.462 9.04E-007 2. 04E-007 22.5

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines -not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak C-PS No. (keV) Counts per Second % Uncertainty F 6 911.62 3.6792E-002 48.92 3 94 t M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P154 G A M M A S P E C T R U M A N A L Y S I S w ************************************s**********************************

Report Generated On 12/7/02 9:23:24 AM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0138.CNF Spectrum Number VA020138.CNF Sample Description O/S Surface 0-6" #12 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chanLnels) 100 - 8192 Peak Area Range (in channeLls) 100 - 8192 Identification Energy Tolexrance 2.00 keV Sample Size 2.455E+002 g Sample Collection Date 11/20/02 1:35:00 PM Spectrum Collection Date 12/7/02 9:08:18 AM Decay Corrected To 11/20/02 1:35:00 PM Collected By L. Finn Live Time 600.0 seconds

-- Real Time 600.2 seconds Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By caC. e, Date /__/ °7/ at Supervisory Review Super i r R Date _; //I / -/42

Peak Locate Analysis Report 12/7/02 9:23:24 AM Page 2p155 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0138.CNF Spectrum Number VA020138.CNF Sample Description O/S Surface 0-6" #12 Sample Type Soil Peak Locate Performed on 12/7/02 9:23:23 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.17 0.1869 238.47 7.65 1. 0247 2 1406.48 0.1979 351.78 5.89 1.2164 3 5845.43 0.1363 1461.04 7.79 2. 0864 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 9:23':24 AM .Pagepl%6 P E A K A N A L Y S I S R E PO R T i'V****************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0138.CNF Spectrum Number VA020138.CNF Sample Description O/S Surface 0-6" #12 Peak Analysis Performed on 12/7/02 9:23:23 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 947- 960 953.05 238.47 1.26E+002 24.60 5.92E+001 F 2 1400- 1416 1406.49 351.78 8. 18E+001 18.23 1.69E+001 F 3 5835- 5856 5845.67 1461.04 1. 38E+002 23.36 7.17E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/7/02 9:23:24 AM page 4 P157 N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0138.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... . IDENTIFIED

.. NUCLIDES .....................

Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.998 1460. 81* 10.67 2.363E-005 4.257E-006 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44.60 1.258E-006 2.625E-007 300.09 3.41

= Energy line found in the spectrum.

@ = Enerrgy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 9:23:24 AM Page 5Pi158 k** I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

S I***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0138.CNF Spectrum Number. VA020138.CNF Performed & Reviewed By . .

Date __71S7/a; Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.998 2.36E-005 4.26E-006 18. 0 PB-212 0.313 1.26E-006 2. 63E-007 20. 9

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S *******

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.78 1.3641E-001 22.27 '2- ;

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

I P159

- G A MM A S PE CT R UM A NA LY SI S***

Report Generated On 12/7/02 9:32:59 AM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0139.CNF Spectrum Number VA020139.CNF Sample Description O/S Sub-Surface 6-12 t #12 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan nels) 100 - 8192 Peak Area Range (in channe 1s) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.676E+002. g Sample Collection Date 11/20/02 1:35:00 PM Spectrum Collection Date 12/7/02 9:20:15 AM Decay Corrected To 11/20/02 1:35:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By xC - Date /fZ/ of/ oz Supervisory Review Su pr vs o y Rv igw 9-2 ~ at Date / 1 //

/9 //16

/31 "I.

Peak Locate Analysis Report 12/7/02 9:32:59 AM Page P1 60 P E A K L O C A T E R E P O R T

, .,w Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0139.CNF Spectrum Number VA020139.CNF Sample Description O/S Sub-Surface 6-12 a' #12 Sample Type Soil Peak Locate Performed on 12/7/02 9:32:59 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.11 0.1949 238.42 6.82 1. 0918 2 1351.99 0.2604 338.19 3.78 0.6908 3 1406.32 0.2143 351.77 4.45 1. 3986 4 2436.65 0.2024 609.27 4 . 57 1. 5680 5 5846.21 0.1403 1461.09 7.40 2. 1706 Errors quoted at 1.96 sigma Flat*

Peak Analysis Report 12/7/02 9:32:59 AM Pagepl 6h P E A K AN-A.LYSIS R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0139.CNF Spectrum Number VA020139.CNF Sample Description O/S Sub-Surface 6-12 " #12 Peak Analysis Performed on 12/7/02 9:32:59 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 946- 958 952.86 238.42 1.14E+002 23.69 5. 06E+001 F 2 1346- 1357 1352.10 338.19 2.24E+001 11.65 2. 02E+001 F 3 1398- 1414 1406.45 351.77 6. 97E+001 17.24 2.24E+001 F 4 2429- 2445 2436.94 609.27 6.25E+001 16.17 1. 29E+001 F 5 5835- 5855 5845.87 1461.09 1. 31E+002 22.69 7. OOE+000 First peak in a multiplet region Other peak in a multiplet region Fitted singlet Errors quoted at 1.96 sigma

,Interference Corrected Activity Report 12/7/02 9:32:59 AM Page $1 62

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0139.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... . IDENTIFIED

.. NUCLIDES .....................

Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0. 997 1460.81* 10.67 2.060E-005 3.783E-006 PB-212 0.312 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44.60 1.039E-006 2.300E-007 300.09 3.41 BI-214 0.269 609. 31* 46.30 1.085E-006 2.938E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 9:32:59 AM Page +1 63

- *** -I N T E R F E R E N C E C O R R E C T E D R E PO R T

.'V**************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0139.CNF Spectrum Number VA020139.CNF Performed & Reviewed By _,

Date _-1 O7/_

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.997 2. 06E-005 3.78E-006 18. 4 PB-212 0.312 1. 04E-006 2.30E-007 22.1 BI-214 0.269 1.09E-006 2. 94E-007 27. 1

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 338.19 3.7344E-002 51.98 Ad-Za F F 3 351.77 1.1623E-001 24.72 g-i8S?

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

P164 A. A a

- - ~~~G AM MAA

@ ****************************** S PE CT R UM A NA L YSI S*** ****

Report Generated On 12/7/02 12:23:23 PM Detector DET01 Sample I.D. C:\GE]rNIE2K\CAMFILES\VA-02-0140.CNF Spectrum Number VA020140.CNF Sample Description 0/S Surface@ 0-6" #13 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.489E+002 g Sample Collection Date 11/20/02 1:55:00 PM Spectrum Collection Date 12/7/02 12:10:18 PM Decay Corrected To 11/20/02 1:55:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date /__/ 47/ O-2 Supervisory Review Supervisor Re ie Date Da e / / X Io2/ /6/6

Peak-Locate Analysis Report 12/7/02 12:23:23 PM Page 2P165 P E A K L O C A T E R E P O R T I,

Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0140.CNF Spectrum Number VA020140.CNF Sample Description O/S Surface@ 0-6" #13 Sample Type Soil Peak Locate Performed on 12/7/02 12:23:22 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.40 0.1933 238.55 6.50 1.2127 2 1351.58 0.2703 338.05 3.69 0.6432 3 1406.49 0.2071 351.86 5.17 1. 3247 4 2333.42 0.2125 583.43 3.80 1. 6103 5 2436.75 0.2160 609.14 3.84 1.6983 6 5845.88 0.1395 1461.08 7.59 2. 0973 Errors quoted at 1. 96 sigma

IPeak Analysis Report 12/7/02 12:23:23 PM Pge Pi16 P E A K A N A L Y S I S R E P O R T Detector DET01 Sample. I.D. C:\GENIE2K\CAMFILES\VA-02-014 0.CNF Spectrum Number VA020140.CNF Sample Description O/S Surface@ 0-6" #13 Peak Analysis Performed on 12/7/02 12:23:23 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuumf No. start end ce!ntroid (keV) Area Uncert. Counts F 1 945- 962 953.39 238.55 1.39E+002 24.70 6.49E+001 F 2 1346- 1356 1351.55 338.05 2.08E+001 10.92 1.70E+001 F 3 1401- 1415 1406.81 351.86 7.27E+001 17.59 1.59E+001 F 4 2325- 2341 2333.53 583.43 4.86E+001 14. 17 8. 31E+000 F 5 2429- 2444 2436.45 609.14 4.95E+001. 14.19 8. 18E+000 F 6 5835- 5856 5845.81 1461.08 1.36E+002 23.13 *7.26E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 12:23:23 PM Page 4P1 67

N U C L I D E I D E N T I F I C A T IO N R E P O RT QV** *.*********** ** * ***** ** * ** ** * * *** * **** * ** ** ** * *** ** ** *****************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0140.CNF Nuclide Library Used C:\GENIE2K\CAMFILES.\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.997 1460.81* 10.67 2.288E-005 4. 152E-006 TL-208 0.435 84.90 1.52 277.35 6.80 510.84 @ 21.60 583. 14* 84.20 4. 821E-007 1.445E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1.358E-006 2.633E-007 300.09 3.41 BI-214 0.269 609. 31* 46.30 9.235E-007 2.749E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 12:23:23 PM Page 5 Pi168

)*** I N T E R F E R E N C E C O R R E C T E D R E*

P O R T ***

14 * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0140.CNF Spectrum Number VA020140,CNF Performed & Reviewed By , _

Date /Jfi 1'/0 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.997 2.29E-005 4.15E-006 18.1 TL-208 @ 0.435 4. 82E-007 1. 44E-007 30.0 PB-212 0.313 1.36E-006 2. 63E-007 19.4 BI-214 0.269 9.23E-007 2.75E-007 29.8

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S

Peak Energy Peak Size in Peak CPS No. (keV)- Counts per Second % Uncertainty F 2 338.05 3.4645E-002 52.55 4_Z-2§ -

F 3 351.86 1.2118E-001 24.20 Fb-_ff, Vi:

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

P169 A *** G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/7/02 11:21:56 AM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0141.CNF Spectrum Number VA020141.CNF Sample Description O/S Sub- Surface@ 6-12" #13 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.735E+002 g Sample Collection Date 11/20/02 1:55:00 PM Spectrum Collection Date 12/7/02 10:21:37 AM Decay Corrected To 11/20/02 1:55:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.4 seconds 0 1 % Dead Time 0.06 %

- Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date /)L/O7/02_

Supervisory'Review SuprvioryRevewDat Date ... Aie-=cZ O

01fi

Ieak Locate Analysis Report 12/7/02 11:21:56 AM Page 2 P170 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0141.CNF Spectrum Number VA020141.CNF Sample Description O/S Sub- Surface@ 6-12" #13 Sample Type Soil Peak Locate Performed on 12/7/02 11:21:55 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence - 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (.keV) Significance (keV) 1 953.85 0.2071 238.57 6.07 1.1525 2 1406.38 0.2079 351.76 5.37 1. 1597 3 2332.63 0.2270 583.20 3.99 1. 3557 4 2435.87 0.2133 609.01 4.37 1.7287 5 3645.57 0. 2188 911.29 3.78 1.2650 6 5844.62 0. 1225 1460.76 9.79 2. 1131 Errors quoted at 1.96 sigma

, Peak Analysis Report 12J7/02 11:21:56 AM Page p ji P E A K A N A L Y S I S R E P O R T if *************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0141.CNF Spectrum Number VA020141.CNF Sample Description 0/S Sub- Surface@ 6-12" #13 Peak Analysis Performed on 12/7/02 11:21:55 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 960 953.44 238.57 1.11E+002 25.63 1.12E+002 F 2 1399- 1414 1406.44 351.76 7.29E+001 19.30 4.50E+001 F 3 2325- 2339 2332.63 583.20 4.66E+001 14.88 1.51E+001 F 4 2428- 2445 2435.91 609.01 6.38E+001 15.90 1.04E+001 F 5 3639- 3653 3645.60 911.29 2.85E+001 12.00 9.62E+000 F 6 5833- 5858 5844.55 1460.76 2.16E+002 28. 68 4.33E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

.nterference Corrected Activity Report 12/7/02 11:21:56 AM Page 4P1 72 g @**** N U C L I D E ID E N T I F I C A T I O N R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0141.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 1.000 1460.81* 10.67 3. 316E-005 4.859E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 4.209E-007 1.374E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.. 00 238.63* 44.60 9.944E-007 2.409E-007 300.09 3.41 BI-214 0.268 609.31* 46.30 1.085E-006 2.835E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 11:21:56 AM Page 5P173 i *** - I N T E R F E R E N C E C O R R E C T E D R E P O R T Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0141.CNF Spectrum Number VA020141.QNF Performed & Reviewed By Date ZEL/ 07/0Z Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 1.000 3.32E-005 4.86E-006 14.7 TL-208 @ 0.437 4.21E-007 1.37E-007 32.6 PB-212 0.313 9. 94E-007 2. 41E-007 24.2 BI-214 0.268 1.08E-006 2. 84E-007 26.1

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.76 1.2147E-001 26.48 iZ a, ey F 5 911.29 4.7457E-002 42.14 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

1 P174 G A MMA S P E C T. R U M A N A L Y S I S Report Generated On 12/7/02 11:21:20 AM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0142.CNF Spectrum Number VA020142. CNF Sample Description O/S Surface@ 0-6" #14 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.416E+002 g Sample Collection Date 11/20/02 1:55:00 PM Spectrum Collection Date 12/7/02 10:57:40 AM Decay Corrected To 11/20/02 1:55:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date /ait7/ O2/

Supervisorye ReienDtns1A Supervisory Review Date -A/d /& 7/ Od,

Peak Locate Analysis Report 12/7/02 11:21:20 AM Page 2P175

-******P E AK L OC A TE RE P ORT ***

L ****** ************ ******** *** ************* ************* ** ******* *********

Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0142.CNF Spectrum Number VA020142.CNF Sample Description O/S Surface@ 0-6" #14 Sample Type Soil Peak Locate Performed on 12/7/02 11:21:19 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 952.76 0. 2135 238.38 5.86 1. 2029 2 1405.87 0. 2408 351.51 3.78 1. 5270 3 3644.34 0. 2224 910.89 3.76 0.6109 4 3875.39 0. 2247 968.70 3.68 0.7720 5 5844.03 0.1322 1460.65 7.83 2.3820 Errors quoted at .1.96 sigma

.Peak Analysis Report 12/7/02 11:21:20 AM Pagep, i6 I ***** P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0142.CNF Spectrum Number VA020142.CNF Sample Description O/S Surface@ 0-6"' #14 Peak Analysis Performed on 12/7/02 11:21:19 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 960 952. 68 238.38 1. 02E+002 22.13 5. 83E+001 F 2 1398- 1411 1405.44 351.51 -5.89E+001 15.95 1. 85E+001 F 3 3638- 3651 3644.01 910.89 1.85E+001 9.48 9. 33E+000 F 4 3869- 3882 3875.37 968.70 1.63E+001 8.71 3. 41E+000 F 5 5832- 5856 5844.11 1460.65 1.88E+002 26.36 2. 15E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

V I

Interference Corrected Activity-Report 12/7/02 11:21:20 AM Page 4P177 NUCLID E IDENTIFICATION REPORT *

- - - - ~*********************************** k*************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0142.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

......... ............. IDENTIFIED NUCLIDES ......................

Nuclide Id Energy Yield ActivityI Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.999 1460.81* 10.67 3.266E-005 5.011E-006 PB-212 0.312 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1.034E-006 2.369E-007 300.09 3.41

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 11:21:20 AM Page 5 P178 I *** I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

1,_*************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0142.CNF Spectrum Number VA020142.CNF Performed & Reviewed By Date __2 __7 __

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.999 3.27E-005 5.01E-006 15.3 PB-212 0.312 1.03E-006 2.37E-007 22.9

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.51 9.8129E-002 27.09 - ./

F 3 910.89 3.0847E-002 51.20 Io.s {

F 4 968.70 2.7115E-002 53.56 Ao o M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P179

,j

G A M M A S P E C T R U M A N A L Y S I S l 5************** ***,*********** *************** ************************

Report Generated On 12/7/02 11:58:17 AM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0143.CNF Spectrum Number VA020143.CNF Sample Description O/S Sub-Surface@ 6-12" #14 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance -2.00 keV Sample Size 2.502E+002 g Sample Collection Date 11/20/02 2:55:00 PM Spectrum Collection Date 12/7/02 11:11:15 AM Decay Corrected To 11/20/02 2:55:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

,-- Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By 4d, 54,z Date c 7t/

07/ 2.

Supervisory Review Su er i r R D~ate /JW/4 / O.

Peak Locate Analysis Report 12/7/02 11:58:17 AM Page 2 P180 P E A K L O C A T E R E P O R T

!. re ,

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0143.CNF Spectrum Number VA020143.CNF Sample Description O/S Sub-Surface@ 6-12" #14 Sample Type Soil Peak Locate Performed on 12/7/02 11:58:16 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.27 0.2040 238.49 5.96 1.1858 2 1406.60 0. 2102 351.85 5.30 1. 3474 3 2332.81 0.2209 583.26- 4.20 0.8102 4 2436.16 0.2184, 609.26 3.69 1.6045 5 5844.75 0.1360 1460.82 7 . 58 2.1301 Errors quoted at 1.96 sigma

Peak Analysis Report 12/7/02 11:58:17 AM Page 3 P181 Iv ***** P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0143.CNF Spectrum Number VA020143.CNF Sample Description O/S Sub-Surface@ 6-12" #14 Peak Analysis Performed on 12/7/02 11:58:16 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 946- 960 953.14 238. 49 1. 12E+002 22.79 5.30E+001 F 2 1398- 1414 1406.78 351.85 7. 10E+001 16.91 1. 42E+001 F 3 2326- 2339 2332.86 583.26 3. 02E+001 11.80 9. 33E+000 F 4 2429- 2447 2436.92 609.26 4.33E+001 14 .16 1.36E+001 F 5 5834- 5855 5844.76 1460.82 1. 43E+002 23. 4? 3.55E+000 M = First peak in a multiplet region

m. = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 11:58:17 AM Page 4 P1 82

N U C L I D E I D E N T I F I C A T IO N R E P O RT

.,~~~~~~~~~~~~ ************************************ *************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0143.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity T Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 1.000 1460.81* 10.67 2.398E-005 4.202E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 2.977E-007 1.182E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1.089E-006 2.372E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 8. 041E-007 2.706E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 11:58:17 AM Page 5 P183 v ** I N T E R F E R E N C E C O R R E C T E D R E P O R T E *** *** * ******** ******* ******** ********* ** * ************** ****************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0143.CNF Spectrum Number VA020143.CNF, Performed & Reviewed By A, __., Date {2/O7 /902 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 I 1.000 2.40E-005 4. 20E-006 17.5 TL-208 @ 0.437 2. 98E-007 1.18E-007 39.7 PB-212 0.313 1.09E-006 2. 37E-007 21.8 BI-214 0.269 8. 04E-007 2.71E-007 33.7

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma -

U N I D E N T I F I E D P E A K S *********

Peak Energy Peak Size in ' Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.85 1.1830E-001 23.83 Q5 06C -,-

M = First peak in a multiplet region m = Other peak in a multiplet-region F = Fitted singlet Errors quoted at 1.96 sigma

P1 84 G****

.z * . G A M MA S PE C T RUM A NAL Y SI S***

',* ** **~****************** ****** ** ** ** * *** * *** ** ** * * ******* ******* *** ** * ***

Report Generated On 12/7/02 11:55:18 AM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0144.CNF Spectrum Number. VA020144.CNF Sample Description O/S Surface@ 0-6" #15 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range .(in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.106E+002 g Sample Collection Date 11/20/02 2:55:00 PM Spectrum Collection Date 12/7/02 11:23:58 AM Decay Corrected To 11/20/02 2:55:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By C&IH Date -/a2/Z0/22 Supervisory Review SuprvioryRevew Dat Date ŽŽ/-

_9 / /r"// 40.L 4

Peak Locate Analysis Report 12/7/02 11:55:1-8 AM Page 2 p 18.5

P E A K L O C A T E R E P O R T I **************************************************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0144.CNF Spectrum Number VA020144.CNF Sample Description O/S Surface@ 0-6" #15 Sample Type Soil Peak Locate Performed on 12/7/02 11:55:17 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.37 0.2252 238.50 5.47 0. 9304 2 1406.46 0.2438 351.78 3.51 1.3808 3 2331.66 0.2172 582.96 4.37 1.2682 4 2436.43 0.2178 609.12 3.89 1.4008 5 5844.43 0.1465 1460.74 6.48 2.1689 Errors quoted at 1. 96 sigma

I

, Peak Analysis Report 12/7/02 11:55:18 AM Page Pi^6 I ***** P E A K A N A L Y S I S R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0144.CNF Spectrum Number VA020144.CNF Sample Description 0/S Surface@ 0-6" #15 Peak Analysis Performed on 12/7/02 11:55:17 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 943- 959 953.16 *238.50 6. 98E+001 19.20 4. 81E+001 F 2 1400- 1413 1406.50 351.78 4. 43E+001 13.98 1. 36E+001 F 3 2325- 2338 2331.67 582.96 3.41E+001 12. 38 7. OOE+000 F 4 2429- 2445 2436.35 609.12 3.72E+001 13.31 1.29E+001 F 5 5834- 5855 5844.45 1460.74 1. 07E+002 20.28 1. 91E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/7/02 11:55:18 AM Page 4 P1 87

N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0144.CNF' Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 1.000 1460.81* 10.67 2.129E-005 4.251E-006 TL-208 0.436 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.991E-007 1.476E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8. 00 238.63* 44.60 8.091E-007 2.308E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 8.201E-007 3.008E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 11:55:18 AM Page 5 Pi188

- I N T E R F E R E N C E C O R R E C T E D R E PO R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0144.CNF Spectrum Number VA020144.CNF Performed & Reviewed By ___ Date Nuclide Wt mean Wt mean Wt mean Nuclide Id Activityr Activity Activity Name Confidence (uCi/g Uncertainty % Uncertainty K-40 1.000 2.13E-005 4.25E-006 20.0 TL-208 @ 0.436 3.99E-007 1.48E-007 37.0 PB-212 0.313 8.09E-007 2. 31E-007 28.5 BI-214 0.269 8.20E-007 3.01E-007 36.7

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.78 7.3867E-002 31.55 fb- L M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P189 i*** G A M M A S P E C T R U M A N A L Y S I S I * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * *

Report Generated On 12/7/02 12:12:41 PM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0145.CNF Spectrum Number VA020145.CNF Sample Description O/S Sub- Surface@ 6-12" #15 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.810E+002 g Sample Collection Date 11/20/02 2:55:00 PM Spectrum Collection Date 12/7/02 11:58:56 AM Decay Corrected To 11/20/02 2:55:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date /.)/ 7/cZ_

Supervisory Review S r r -e Date lal/b / act;

Peak Locate Analysis Report 12/7/02 12:12:41 PM Page 2 Pi190

P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0145.CNF Spectrum Number VA020145.CNF Sample Description O/S Sub- Surface@ 6-12" #15 Sample Type Soil Peak Locate Performed on 12/7/02 12:12:40 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 298.09 0. 3286 74.79 3.79 0. 3010 2 952.98 - 0.2177 238.51 5.68 1. 2199 3 1179.74 0.2601 295.07 3.90 1. 0011 4 1406.75 0. 2240 351.82 4.10 1.5284 5 2436.62 0. 2165 609.18 4.51 1. 3324 6 5844.78 0.1293 1460.81 8.39 2.1493 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 12:12:41 PM Page p 1 9 P E A K A N A L Y S I S R E P O R T W

IN *************** ***************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0145.CNF Spectrum Number VA020145.CNF Sample Description O/S Sub- Surface@ 6-12" #15 Peak Analysis Performed on 12/7/02 12:12:40 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 293- 302 298. 00 74.79 2.50E+001 18. 05 8.91E+001 F 2 945- 964 953.23 238.51 1. 11E+002 22.62 7.22E+001 F 3 1171- 1186 1179.56 295.07 3. 76E+001 13.94 2. 40E+001 F 4 1398- 1414 1406.67 351.82 7. 51E+001 17. 82 2.69E+001 F 5 2429- 2445 2436.61 609.18 4. 62E+001 14. 02 9.13E+000 F 6 5833- 5856 5844.73 1460.81 1. 74E+002 25.56 2.03E+000 M = First peak in a multiplet region m = Other peak in a multiplet region j F = Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/7/02 12:12:41 PM Page 4 P192

- - - - NUCLIDE IDENTIFICATION REPOR-T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0145.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name C onfidence (keV) (%) (uCi/g Uncertainty K-40 1.000 1460.81* 10.67 2.592E-005 4.142E-006 PB-212 0.484 74.82* 10.70 1.482E-006 1.083E-006 77.11 18. 00 87.30 8.00 238.63* 44.60 9.639E-007- 2.097E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 7.642E-007 2.396E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.564 53.23 1.11 74.81* 6.21 2.553E-006 1.860E-006 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 8.713E-007 3.310E-007 351.92* 37.20 1.016E-006 2.546E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 12:12:41 PM Page 5P193

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0145.CNF Spectrum Number VA020145.CNF Performed & Reviewed By Date _/Z/e7/10-2 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 1.000 2.59E-005 4. 14E-006 16.0 PB-212 0.484 9.62E-007 2.02E-007 21. 0 BI-214 0.269 7. 64E-007 2.40E-007 31.3 PB-214 @ 0.564 9. 63E-007 1. 96E-007 20.4

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@= nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P194 I*** G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/7/02 12:35:27 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0146.CNF Spectrum Number VA020146.CNF Sample Description O/S Surface@ 0-6" #16 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.252E+002 g Sample Collection Date 11/20/02 3:15:00 PM Spectrum Collection Date 12/7/02 12:21:44 PM Decay Corrected To 11/20/02 3:15:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By X, v/

An, Date /-3/57/oZ Supervisory Review 9161.1Z10 Date /0 / 0,9t

Peak Locate Analysis Report 12/7/02 12:35:27 PM Page 2pJ95 P E A K L O C A T E R E P O R T Iir* * * * * ** * * * * * * ** * * * * * * ** * * * * * * ** * * * * *

Detector DET01 Sample I.D. C:'\GENIE2K\CAMFILES\VA-02-0146.CNF Spectrum Number VA020146.CNF Sample Description O/S Surface@ 0-6" #16 Sample Type Soil Peak Locate Performed on 12/7/02 12:35:26 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.00 0.2094 238.35 4.48 1.4277 2 1406.91 0.2238 351.85 4.60 1.3451 3 2331.76 0. 2295 582.94 3.91 1.2805 4 2436.11 0.2188 609.05 4.11 1.4988 5 5845.16 0. 1412 1460.88 6.81 2. 1689 Errors quoted at 1.96 sigma

Peak Analysis Report 12/7/02 12:35:27 PM PageP 196 P E A K A N A L Y S I S R E PO R T V **************************************************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0146.CNF Spectrum Number VA020146.CNF Sample Description 0/S Surface@ 0-6" #16 Peak Analysis Performed on 12/7/02 12:35:26 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 942- 959 952.56 238.35 1. 13E+002 21.72 3.97E+001 F 2 1399- 1413 1406.79 351.85 6. 16E+001 16.10 1. 63E+001 F 3 2326- 2339 2331. 58 582.94 3.12E+001 11.55 5. 02E+000 F 4 2429- 2443 2436.08 609.05 3. 93E+001 12.92 6. 08E+000 F 5 5833- 5857 5845.02 1460.88 1. 31E+002 22.46 2. 02E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 12:35:27 PM Page 4197

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0146.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 1.000 1460.81* 10.67 2.444E-005 4.452E-006 TL-208 0.436 84.90 1.52 277.35 6.80 510.84 21.60 583.14* 84.20 3.416E-007 1.288E-007 763.13 1.64 860.37 12.46 PB-212 0.312 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1.225E-006 2.531E-007 300.09 3.41 BI-214 0.268 609.31* 46.30 8.103E-007 2.743E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at .1.960 sigma

Interference Corrected Activity Report 12/7/02 12:35:27 PM Page -'1,98 I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0146.CNF Spectrum Number VA020146. CNF Performed & Reviewed By e s .20 - Date 1/ o-/eP2' Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 1.000 2.44E-005 4. 45E-006 18.2 TL-208 @ 0.436 3.42E-007 1.29E-007 37.7 PB-212 0.312 1.23E-006 2. 53E-007 20.7 BI-214 0.268 8.1OE-007 2.74E-007 33.9

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S J Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.85 1.0267E-001 26.14 PE-ZJ/ Xd-y@-

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P199 G A M M A S P E C T R U M A N A L Y S I S

%iIU ****** ******* ***** ************* **** *********** ********* ** ****** *********

Report Generated On 12/7/02 12:45:37 PM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0147.CNF Spectrum Number VA020147.CNF Sample Description O/S Sub-Surface@ 6-12" #16 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.782E+002 g Sample Collection Date 11/20/02 3:15:00 PM Spectrum Collection Date 12/7/02 12:32:43 PM Decay Corrected To 11/20/02 3:15:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

( Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 It Performed & Reviewed By Date /A;V/7/oZ7 Supervisory Review Supervisory Review Date /,p/A0

///' /4Z

/ 4Z

Peak Locate Analysis Report 12/7/02 12:45:37 PM Page '0200 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0147.CNF Spectrum Number VA020147.CNF Sample Description O/S Sub-Surface@ 6-12" #16 Sample Type Soil Peak Locate Performed on 12/7/02 12:45:36 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak F-WHM No. Channel Uncertainty (keV) Significance (keV) 1 953.35 0. 1984 238.49 5.82 1.3581 2 1178.29 0.2570 294.95 3.65 1. 5493 3 1406.81 0.2056 351.83 5.02 1.2653 4 2331.75 0.2118 582.97 4X 39 1.3862 5 2436.94 0. 1906 609.29 5.72 1.0616 6 3644.05 0.2205 910. 75 3.71 1. 6309 7 5845.55 0.1342 1461.01 7.99 2.2364 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 12:45:37 PM PagTp203

- - - - J P E A K A N A L Y S I S R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0147.CNF Spectrum Number VA020147.CNF Sample Description O/S Sub-Surface@ 6-12" #16 Peak Analysis Performed on 12/7/02 12:45:36 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 960 953.13 238.49 1. 43E+002 24.61 5.17E+001 F 2 1172- 1187 1179.06 294. 95 5.23E+001 15.10 1. 96E+001 F 3 1401- 1414 1406.69 351.83 7.23E+001 18. 14 2.33E+001 F 4 2325- 2338 2331.69 582.97 4.71E+001 14.25 8. 19E+000 F 5 2430- 2445 2437.02 609.29 5. 01E+001 15.50 1.79E+001 F 6 3638- 3651 3643.43 910.75 2.30E+001 10.77 6. 19E+000 F 7 5834- 5857 5845.52 1461.01 1. 61E+002 24.71 3.79E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma.

Interference Corrected Activity Report 12/7/02 12:45:37 PM Page '9202 I D E N T I F I C A T IO N R EPORT *****

N U C L I D E Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0147.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activityr Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.998 1460.81* 10.67 2.422E-005 4.020E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 4.177E-007 1.296E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1.257E-006 2.361E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 8.371E-007 2.674E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.461 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.222E-006 3.676E-007 351.92* 37.20 9.880E-007 2.603E-007

= Energy line found in'the spectrum.

@ =,Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 12:45:37 PM Page +203

- - INT E RFE R E NCE C ORR EC T ED R EP OR T **

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0147.CNF Spectrum Number VA020147. CNF Performed & Reviewed By Date Ie / 7-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.998 2.42E-005 4.02E-006 16. 6 TL-208 @ 0.437 4.18E-007 1.30E-007 31.0 PB-212 0.313 1.26E-006 2.36E-007 18.8 BI-214 0.269 8.37E-007 2.67E-007 31.9 PB-214 @ 0.461 1.07E-006 2.12E-007 19.9

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 6 910.75 3.8350E-002 46.81 AFr-Az.y 0O?--

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P204 G A M M A S P E C T R U M A N A L Y S I S L. i*************************************

Report Generated On 12/7/02 12:57:43 PM Detector DET 01 Sample I.D. C:\GEJ NIE2K\CAMFILES\VA-02-0148.CNF Spectrum Number VA020148.CNF Sample Description O/S Surface@ 0-6" #17 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.676E+002 g Sample Collection Date 11/20/02 3:45:00 PM Spectrum Collection Date 12/7/02 12:44:24 PM Decay Corrected To 11/20/02 3:45:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date //j7/@ Z' Supervisory Review Superv soryIRview D te Da te -Act/A / Or.

Peak Locate Analysis Report 12/7/02 12:57:43 PM Page P205

- - - - PE AK L OC A TE RE PO RT ***

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0148.CNF Spectrum Number VA020148.CNF Sample Description O/S Surface@ 0-6" #17 Sample Type Soil Peak Locate Performed on 12/7/02 12:57:42 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 298.02 0. 3166 74.78 4.19 0. 5306 2 306.77 0. 3085 77.06 3.65 0. 5364 3 953.10 0.2008 238.49 5.63 1. 2448 4 1352.37 0.2654 338.23 3.63 0. 7533 5 1406.15 0.2208 351.70 4.48 1. 4 620 6 2331.88 0. 2274 583.04 3.93 1. 3371 7 2436.40 0.2075 609.13 4.48 1. 4790 8 5846.59 0.1354 1461.25 7.50 2.1869 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 12:57:43 PM Pag(P2U

- - - - P E AK A NA LY S IS R EP OR T***

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0148.CNF Spectrum Number VA020148.CNF Sample Description O/S Surface@ 0-6" #17 Peak Analysis Performed on 12/7/02 12:57:43 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts M 1 295- 313 297.98 74.78 3.04E+001 14.17 3. 60E+001 m 2 295- 313 307.09 77.06 3.38E+001 14. 32 3.54E+001 F 3 946- 961 953.13 238.49 1.23E+002 23.58 5. 69E+001 F 4 1348- 1358 1352.30 338.23 2. 30E+001 11.14 1.28E+001 F 5 1399- 1412 1406.19 351.70 7. 53E+001 17.81 1. 98E+001 F 6 2324- 2338 2332.00 583.04 3. 61E+001 12.89 1. OOE+001 F 7 2428- 2444 2436.38 609.13 5.09E+001 14.66 9. 92E+000 F 8 5834- 5857 5846.51 1461.25 1. 49E+002 23.66 0. OOE+000 First peak in a multiplet region m = Other peak in a multiplet region

( F = Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/7/02 12:57:44 PM Page ?207

- - - - NUCLIDE IDEN'TIFICATION REPORT *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0148.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.992 1460.81* 10.67 2.337E-005 3.986E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583. 14* 84.20 3.326E-007 1.211E-007 763.13 1.64 860.37 12.46 PB-212 0.784 74.82* 10.70 1.886E-006 9.096E-007 77.11* 18.00 1.158E-006 5.073E-007 87.30 8.00 238.63* 44.60 1.122E-006 2. 313E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 8.830E-007 .2.640E-007 768.36 5.04 806. 17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

-PB-214 I0.366 53.23 @ 1.11

74. 81* 6.21 3.250E-006 1.557E-006 77.11* 10.50 1.985E-006 8.691E-007 87.30 4.67 241.98 7.49 295.21 19.20 351. 92* 37.20 L.071E-006 2.672E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weightped Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 12:57:44 PM Page P208

- - I N T E R F E R E N C E C OR R E C T E D R E PO R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0148.CNF Spectrum Number VA020148.CNF Performed & Reviewed By Date __IP7102-

, I Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.992 2. 34E-005 3. 99E-006 17.1 TL-208 @ 0.437 3.33E-007 1.21E-007 36.4 PB-212 0.784 1. 04E-006 2.03E-007 19.5 BI-214 0.269 8.83E-007 2.64E-007 29.9 PB-214 @ 0.366 1.01E-006 2.48E-007 24. 6

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 4 338.23 3.8294E-002 48.48 Ad',lz d~~;7L-M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P209 GA MM A SP EC TR U M ANAL Y SI S V **********************************************************

Report Generated On 12/7/02 1:08:37 PM Detector DET01 Sample I.D. C:\GE'NIE2K\CAMFILES\VA-02-0149.CNF Spectrum Number VA020149.CNF Sample Description 0/S Sub- Surface@ 6-12" #17 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.797E+002 g

-Sample Collection Date 11/20/02 3:45:00 PM Spectrum Collection Date 12/7/02 12:55:43 PM Decay Corrected To 11/20/02 3:45:00 PM Collected By L. Finn Live Time - 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

( Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02-Calibration Geometry Used 2 Performed & Reviewed By vi?e Date O '/ '2

/..?/o Supervisory Review m0e:,a >) Date 1/-Vl 1/al

Peak Locate Analysis Report 12/7/02 1:08:37 PM Page P21 0 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0149.CNF Spectrum Number VA020149.CNF Sample Description O/S Sub- Surface@ 6-12" #17 Sample Type Soil Peak Locate Performed on 12/7/02 1:08:36 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 952.54 0.1964 238.37 6.10 1.1660 2 1177.88 0.2562 294.63 3.58 1.1527 3 1407.08 0.2116 351.92 4.61 1.3515 4 2332.03 0. 2423 583.06 3.55 1. 1835 5 2436.78 0. 2107 609.28 4.43 1.4731 6 5845.37 0.1366 1461.08 7.09 2. 22 68 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 1:08:37 PM Pag&'2131 P E A K A N A L Y S I S R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0149.CNF Spectrum Number VA020149.CNF Sample Description O/S Sub- Surface@ 6-12" #17 Peak Analysis Performed on 12/7/02 1:08:36 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 946- 958 952.65 238.37 1. 19E+002 23.49 4. 43E+001 F 2 1172- 1184 1177.80 294.63 3.4 1E+001 13.44 1.97E+001 F 3 1401- 1414 1407.06 351.92 6. 89E+001 17.29 1. 60E+001 F 4 2326- 2339 2332.05 583.06 2.34E+001 11.70 1.38E+001 F 5 2429- 2445 2437.01 609.28 4.62E+001 13.77 6. 72E+000 F 6 5834- 5858 5845.82 1461.08 1. 50E+002 24.40 8. 33E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet k,.2Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 1:08:37 PM Page T21 2

-***** NUCLIDE IDENTIFICATION REPORT *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0149.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activityr Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.997 1460.81* 10.67 2.255E-005 3.921E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 2.065E-007 1.042E-007 763.13 1.64 860.37 12.46 PB-212 0.312 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44 . 60 1.041E-006 2. 196E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 7. 681E-007 2.368E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15. 10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.459 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4..67 241.98 7.49 295.21* 19.20 7.922E-007 3.195E-007 351.92* 37.20 9.372E-007 2.468E-007

= Energy line found in the spectrurm.

@ = Energy line not used for WeightecI Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10-Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 1:08:37 PM Page -8213

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0149.CNF Spectrum Number VA020149.CNF Performed & Reviewed By gp. X Zj Date 440 /.e2 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.997 2.26E-005 3.92E-006 17 . 4 TL-208 @ 0.437 2.07E-007 1.04E-007 50.5 PB-212 0.312 1. 04E-006 2.20E-007 21.1 BI-214 0.269 7. 68E-007 2. 37E-007 30. 8 PB-214 @ 0.459 8. 83E-007 1.95E-007 22.1

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S * *** ****

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P214 G A M M A S P E C T R U M A N A L Y S I S

'V************************************************************************

Report Generated On 12/7/02 1:24:14 PM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0150.CNF Spectrum Number VA020150.CNF Sample Description O/S Surface@ 0-6" #18 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.199E+002 g Sample Collection Date 11/20/02 4:40:00 PM Spectrum Collection Date 12/7/02 1:06:57 PM Decay Corrected To 11/20/02 4:40:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date /' 7 /?

Superisor Reviw Dae ,9 /&~

Supervisory Review Date /,S/ /0 / 01

Peak Locate Analysis Report 12/7/02 1:24:14 PM Page 0215 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0150.CNF Spectrum Number VA020150.CNF Sample Description O/S Surface@ 0-6" #18 Sample Type Soil Peak Locate Performed on 12/7/02 1:24:13 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 0 1 952.80 0.2230 238.41 5.09 1. 1884 2 2332.20 0.2233 583.10 3.66 1. 4882 3 5845.09 --

0.1423 1460.92 6.85 2. 2229 Errors quoted at 1. 96 sigma

IPeak Analysis Report 12/7/02 1:24:14 PM Pa9921t{

P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0150.CNF Spectrum Number VA020150.CNF Sample Description O/S Surface@ 0-6" #18 Peak Analysis Performed on 12/7/02 1:24:13 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 946- 961 952.82 238.41 8.26E+001 20.05 5.29E+001 F 2 2325- 2339 2332.22 583.10 3.58E+001 12.46 6. 27E+000 F 3 5835- 5857 5845.17 1460.92 1.27E+002 22.02 1.75E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma I

Interference Corrected Activity Report 12/7/02 1:24:14 PM Page P217

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0150.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

......... K.......- IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 1.000 1460.8i* 10.67 2.426E-005 4.466E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 4. 016E-007 1.426E-007 763.13 1.64 860.37 12.46 PB-212 0.312 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 9. 166E-007 2.331E-007 300.09 3.41

= Energy line found in the spectrum.

@ = Energy line not u'sed for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Inte'rference Corrected Activity Report 12/7/02 1:24:14 PM Page ID21 8

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0150.CNF Spectrum Number VA020150.CNF, Performed & Reviewed By . , _, _ _

Date f/OY 7/07 -

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 1.000 2.43E-005 4.47E-006 18.4 TL-208 @ 0.437 4.02E-007 1.43E-007 35.5 PB-212 0.312 9.17E-007 2.33E-007 25'.4

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used-in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D * ***** * **

P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts-per Second % Uncertainty All peaks were identified.

M = First peak in a-multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P219 G A M M A S P E C T R U M A N A L Y S I S V*************************************************************************

Report Generated On 12/7/02 1:32:00 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0151.CNF Spectrum Number VA020151.CNF Sample Description O/S Sub-Surface@_>k-' #18 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan.nels) 100 - 8192 Peak Area Range (in channe is) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.794E+002 g Sample Collection Date 11/20/02 4:40:00 PM Spectrum Collection Date. 12/7/02 1:18:41 PM Decay Corrected To 11/20/02 4:40:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By V"'7 ,

01")LI 7';e." . Date /Z/ 7?/O.2 Supervisory Review Suprvior ReiewD Date a e AhI t / 6Q.

) ;e/ 1s1 4St

Peak Locate Analysis Report 12/7/02 1:32:00 PM Page k220 P E A K L O -C A T E R E P O R T Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0151.CNF Spectrum Number VA020151.CNF Sample Description O/S Sub-Surface@ 0-6" #18 Sample Type Soil Peak Locate Performed on 12/7/02 1:31:59 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 297.69 0. 3287 74. 69 3.73 0. 5731 2 307.30 0.3015 77.11 3.76 0.5795 3 952.53 0.2122 238.43 5.29 1. 3598 4 1406.92 0.2142 351.84 4.78 1. 3595 5 2332.11 0.2164 583.09 3.69 1. 7078 6 3645.49 0.2194 911.31 3.56 1. 3352 7 5845.34 0.1299 1460.93 8.22 2. 1838 Errors quoted at 1. 96 sigma

Peak Analysis Report 12 /7/02 1:32:00 PM Pag'P2 2 P E A K A N A L Y S I S R E PO R. T

'.VI************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0151.CNF Spectrum Number VA020151.CNF Sample Description O0/S Sub-Surface@ 0-6" #18 Peak Analysis Performed on 12/7/02 1:31:59 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts M 1 289- 315 297.61 74.69 3.40E+001 14.74 4. 06E+001 m 2 289- 315 307.30 77.11 3.80E+001 15.20 3.64E+001 F 3 945- 961 952.91 238.43 1.25E+002 23.42 5.95E+001 F 4 1398- 1415 1406.73 351.84 7.07E+001 17. 54 2.56E+001 F 5 2325- 2340 2332.18 583.09 5.02E+001 14 . 44 1.07E+001 F 6 3639- 3652 3645.70 911.31 2. 65E+001 11.26 6. 69E+000 F 7 5834- 5857 5845.23 1460.93 1.74E+002 25.72 1. 87E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

-s

Interference Corrected Activity Report 12/7/02 1:32:00 PM Page *222 N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0151.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... . IDENTIFIED

.. NUCLIDES .....................

Nuclide Id Energy Yield Activityr Activity Name CcDnfidence (keV) (%) (uCi/g ) Uncertainty K-40 0.999 1460.81* 10.67 2.611E-005 I 4.190E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 21.60 583.14* 84.20 4.435E-007 1.312E-007 763.13 1.64 860.37 12.46 PB-212 0.783 74.82* 10.70 2.030E-006 9.135E-007 77.11* 18.00 1.247E-006 5.169E-007 87.30 8.00 238.63* 44. 60 1.090E-006 2.207E-007 300.09 3.41 PB-214 0.367 53.23 1.11 74.81* 6.21 3.499E-006 i 1.562E-006 77.11* 10.50 2.138E-006 8.856E-007 87.30 4.67 241.98 7.49 295.21 19.20 351.92* 37.20 9.626E-007 2.509E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 1:32:00 PM Page -8223

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

I

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0151.CNF Spectrum Number VA020151.CNF Performed & Reviewed By Date /AVCg70 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0. 999 2.61E-005 4. 19E-006 16.0 TL-208 @ 0.437 4. 43E-007 1. 31E-007 29.6 PB-212 0.783 1. 05E-006 1. 95E-007 18.6 PB-214 @ 0.367 9. 34E-007 2.35E-007 25.1

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 6 911.31 4.4245E-002 42.42 or>

egg M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

P224 G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/16/02 8:18:00 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0152.CNF Spectrum Number VA020152.CNF Sample Description O/S@Surface 0-6" #19 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan nels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.941E+002 ea Sample Collection Date 11/20/02 4:45:00 PM Spectrum Collection Date 12/7/02 1:43:57 PM Decay Corrected To 11/20/02 4:45:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/ 02 Calibration Geometry Used 2 Performed & Reviewed By /.

1g A go< Date /Z //J IO_

Supervisory Review Date /,q/ /6 / Oa 7

Peak Locate Analysis Report 12/16/02 8:18:00 PM Page 2 P225 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0152. CNF Spectrum Number VA020152.CNF Sample Description O/S@Surface 0-6" #19 Sample Type Soil Peak Locate Performed on 12/16/02 8:17:59 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (key) Significance (key) 1 306.69 0. 2711 77. 01 4.52 0.7941 2 953.95 0.2148 238. 63 5.12 1.4144 3 1351.45 0.2708 338.01 3.72 0.7162 4 1406.32 0.2083 351.77 5.48 1.1635 5 2334.57 0. 2198 583.68 4.28 1.2869 6 2438.18 0.2168 609.49 3.88 1.7860 7 3647.61 0.2115 911.80 4.08 1.3731 8 5846.58 0. 1416 1461.40 6.94 2 . 1254 Errors quoted at 1.96 sigma

12/16/02 8:18:00 PM PageP2ft Peak Analysis Report A P E A K A N A L Y S I S R E P 0 R T

'II* **********************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0152.CNF Spectrum Number VA020152.CNF Sample Description O/S@Surface 0-6" #19 Peak Analysis Performed on 12/16/02 8:17:59 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak Energy Net Peak Net Area Continuum Peak ROI ROI centroid (keV) Area Uncert. Counts No. start end 1 303- 311 306. 92 77. 01 5.33E+001 19.18 5. 45E+001 F

945- 961 953.70 238. 63 1. 27E+002 23.50 5. 78E+001 F 2 3 1347- 1356 1351.40 338.01 2.21E+001 11.78 1. 84E+001 F

1399- 1414 1406.47 351.77 6.91E+001 17.42 2.21E+001 F 4 5 2328- 2342 2334 .53 583. 68 4.04E+001 13. 66 1. 16E+001 F

6 2431- 2446 2437. 85 609.49 4. 85E+001 14.49 1. 03E+001 F

3640- 3654 3647. 66 911 . 80 2. 99E+001 12. 91 1. 50E+001 F 7 5837- 5859 5847. 08 1461.40 1.26E+002 22.36 5. 01E+000 F 8 I M = First peak in a multiplet region 9 m = Other peak in a multiplet region

--- F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/16/02 8:18:00 PM Page 4P227

- N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0152.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/ea ) Uncertainty K-40 0.986 1460.81* 10.67 1.802E-005 3.381E-006 TL-208 0.430 84.90 1 . 52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.389E-007 1. 171E-007 763.13 1.64 860.37 12.46 PB-212 0.613 74.82 10.70 77.11* 18.00 1.665E-006 6.264E-007 87.30 8.00 238.63* 44.60 1. 051E-006 2. 107E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 7.664E-007 2.369E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.264 53.23 @ 1.11 74.81 6.21 77.11* 10. 50 2.854E-006 1.073E-006 87.30 4.67 241.98 7.49 295.21 19.20 351.92* 37.20 8.940E-007 2.364E-007

= Energy line found in the spectru I t.

@ = Energy line not used for Weighte :iMean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma'

Interference Corrected Activity Report 12/16/02 8:18:00 PM Page EP2 2 8 I N T E R F E R E N C E C O R R E C T E D R E P O R T Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0152.CNF Spectrum Number VA020152.CNF Performed & Reviewed By X 2 Date Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/ea ) Uncertainty % Uncertainty K-40 0.986 1. 80E-005 3.38E-006 18.8 TL-208 @ 0.430 3. 39E-007 1. 17E-007 34.5 PB-212 0.613 1. 06E-006 1. 95E-007 18.4 BI-214 0.269 7. 66E-007 2. 37E-007 30.9 PB-214 @ 0.264 9. 01E-007 2.26E-007 25.1

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 3 338.01 3.6772E-002 53.39 4e- aO F 7 911.80 4.9889E-002 43.12 - ?.a-r M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P229

- - G A MMA S PE CT R UM A NA LY SI S***

Report Generated On 12/7/02 3:20:44 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0153.CNF Spectrum Number VA020153.CNF Sample Description O/S Sub- Surface.>-6<#19 Sample Type Soil At; Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in charLnels) 100 - 8192 Peak Area Range (in channe,ls) 100 - 8192 Identification Energy Tale ,rance 2.00 keV Sample Size 2.900E+002 ea Sample Collection Date 11/20/02 4:45:00 PM Spectrum Collection Date 12/7/02 _3:05:37 PM Decay Corrected To 11/20/02 4:45:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date 07/ _d_O.Z Supervisory Review Superviory Reiew 9 Dae Date - 19//A /0

/-O,;

Peak Locate Analysis Report 12/7/02 3:20:44 PM Page 2P230 P E A K L O C A T E R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0153.CNF Spectrum Number VA020153.CNF Sample Description O/S Sub- Surface 0-6"#19 Sample Type Soil Peak Locate Performed on 12/7/02 3:20:43 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.67 0. 2096 238.65 4.97 1.4727 2 1406.83 0.2293 352.00 4.09 1.3930 3 2332.76 0.2025 583.22 4.98 1. 2124 4 5848.41 0. 1294 1461.65 8.09 2.2165 Errors quoted at 1.96 sigma

Peak Analysis Report 12/7/02 3:20:44 PM PageP2§1 P E A K A N A L Y S I S R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0153.CNF Spectrum Number VA020153.CNF Sample Description O/S Sub- Surface 0-6"#19 Peak Analysis Performed on 12/7/02 3:20:43 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 963 953.75 238.65 1.47E+002 24.68 6.68E+001 F 2 1402- 1415 1407.40 352.00 5.72E+001 16.41 1. 88E+001 F 3 2325- 2340 2332.70 583.22 4.49E+001 14.06 9.33E+000 F 4 5836- 5860 5848.08 1461.65 1.85E+002 26.43 2. 02E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

,Interference Corrected Activity Report 12/7/02 3:20:44 PM Page 4P232 N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0153.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/ea ) Uncertainty K-40 0.972 1460.81* 10.67 2.679E-005 4.173E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 21.60 583.14* 84.20 3.820E-007 1.225E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8 . 00 238.63* 44.60 1.237E-006 2.280E-007 300.09 3.41

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

I-nterference Corrected Activity Report 12/7/02 3:20:44 PM page -P233

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0153.CNF Spectrum Number VA020153.QNF Performed & Reviewed By Date ___ 7/ 02 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/ea ) Uncertainty % Uncertainty K-40 0.972 2. 68E-005 4.17E-006 15.6 TL-208 @ 0.437 3. 82E-007 1.23E-007 32.1 PB-212 0.313 1.24E-006 2.28E-007 18.4

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 352.00 9.5381E-002 28.67 16 ,114 Xe4 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P234 G A M M A S P E C T R U M A N A L Y S I S

V**************************************************************************

Report Generated On 12/7/02 2:14:24 PM Detector DET01 Sample I.D. C:\GEIRNIE2K\CAMFILES\VA-02-0154.CNF Spectrum Number VA020154.CNF Sample Description 0/S Surface 0-6" #20 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.837E+002 ea Sample Collection Date 11/21/02 8:00:00 AM Spectrum Collection Date 12/7/02 2:00:18 PM Decay Corrected To 11/21/02 8:00:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Rew I Date D, /Z/ °7/ O0 8,0, X&-

Supervisory Review Date t /y / 0OGL,.

Peak Locate Analysis Report 12/7/02 2:14:25 PM Page 2P235 P E A K L O C A T E R E P O R T is Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0154.CNF Spectrum Number VA020154.CNF Sample Description O/S Surface 0-6" #20 Sample Type Soil Peak Locate Performed on 12/7/02 2:14:24 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) ,

1 953.47 0. 1977 238.50 5.78 1. 3114 2 1179.90 0. 2613 295.15 3.97 0. 9682 3 1407.56 0. 2275 352.00 4.22 1. 4712 4 2332.36 0. 2042 583.15 4.89 1. 1272 5 2437.41 0.2065 609.40 4.31 1. 3866 6 3648.07 0.2242 911.86 3.63 1. 2827 7 3878.09 0.2163 969.31 3.69 1. 5586 8 5847.29 0. 1368 1461.45 7.85 2.1445 Errors quoted at 1.96 sigma

Peak Analysis Report 12/7/02 2:14:25 PM PageP2

- - - - P E A K A N A L Y S I S R E P O R T je,.

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0154.CNF Spectrum Number VA020154.CNF Sample Description 0/S Surface 0-6" #20 Peak Analysis Performed on 12/7/02 2:14:24 PM Peak Analysis From Channel .100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 943- 959 953.16 238.50 1. 39E+002 25.12 6. 31E+001 F 2 1173- 1186 1179.89 295.15 3.53E+001 13.66 2. 22E+001 F 3 1400- 1416 1407.38 352.00 6. 72E+001 16.72 1.98E+001 F 4 2325- 2338 2332.43 583.15 4.30E+001 14. 63 1.51E+001 F 5 2429- 2445 2437.49 609.40 4.38E+001 14. 14 1.27E+001 F 6 3642- 3655 3647.91 911.86 2. 56E+001 11.47 8. 03E+000 F 7 3872- 3885 3877. 81 969.31 2.50E+001 11.80 7.98E+000 F 8 5836- 5858 5847.30 1.4 61. 45 1. 49E+002 24.14 7.67E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 2:14:25 PM Page "P237

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0154.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/ea ) Uncertainty K-40 0.984 1460.81* 10.67 22.208E-005 3.826E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 33.738E-007 1.299E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1 .194E-006 2.344E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 7 .173E-007 2.386E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.462 ' 53.23 @ 1.11 74.81 6.21 77.11 10.50 8-7.30 4.67 241.98 7.49 295.21* 19.20 8 .106E-007 3.207E-007 351.92* 37.20 9 .012E-007 2.356E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 2:14:25 PM Page T238

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

t ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0154.CNF Spectrum Number VA020154.CNF Performed & Reviewed By 17C.0/ >-41 2~ Date ___ 071e8l Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/ea ) Uncertainty % Uncertainty K-40 0.984 2.21E-005 3.83E-006 17. 3 TL-2 08 @ 0.437 3.74E-007 1.30E-007 34. 7 PB-212 0.313 1.19E-006 2. 34E-007 19.6 BI-214 0.269 7. 17E-007 2.39E-007 33.3 PB-214 @ 0.462 8. 69E-007 1.90E-007 .21.8

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S ** *** ****

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 6 911.86 4.2598E-002 44.88 -e-Lg F 7 969.31 4.1745E-002 47.10 4a. -4 ax M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P239 G A M M A S P E C T R U M A N A L Y S I S W *****************************************'*************

Report Generated On 12/7/02 2:31:41 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0155.CNF Spectrum Number VA020155.CNF Sample Description O/S Sub-Surface 6-12" #20 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan nels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.519E+002 ea Sample Collection Date 11/21/02 8:00:00 AM Spectrum Collection Date 12/7/02 2:13:24 PM Decay Corrected To 11/21/02 8:00:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Sox_R e D Date / 7 /_L Supervisory Review Date _,; / At/6

Peak T'ocate Analysis Report -12/7/02 2:31:41 PM Page 4--240 P E A K L O C A T E R E PO R T Detector DET01 Sample I.D. C:'\GENIE2K\CAMFILES\VA-02-0155.CNF Spectrum Number VA020155.CNF Sample Description O/S Sub-Surface 6-12" #20 Sample Type Soil Peak Locate Performed on 12/7/02 2:31:40 PM Peak Locate From Channel 100 Peak Locate To Channel '8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 954.04 0.2034 238.68 5.89 1. 1356 2 966.77 0.2635 241.92 3.97 1. 1403 3 1406.45 0.2228 351.77 3.83 1.6870 4 2332.88 0.2139 583.26 4.61 1. 1097 5 2437.15 0.2027 609.38 4.66 1. 7100 6 5847.85 0. 1379 1461.46 7.31 2.1118 Errors quoted at 1. 96 sigma

Pleak Analysis Report 12/7/02 2:31:41 PM PageP243

- - - - P E AK A N AL YS IS R EP OR T***

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0155.CNF Spectrum Number VA020155.CNF Sample Description O/S Sub-Surface 6-12" #20 Peak Analysis Performed on 12/7/02 2:31:40 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts M 1 945- 972 953.88 238.68 1.18E+002 22. 57 3. 75E+001 m 2 945- 972 966.86 241.92 2. 64E+001 13.69 3. 89E+001 F 3 1398- -1415 1406.47 351.77 7.95E+001 16.92 1.05E+001 F 4 2327- 2340 2332.88 583.26 3.53E+001 12.52 7.OOE+000 F 5 2429- 2446 2437.41 609.38 5.94E+001 14.82 3.OOE+000 F 6 5836- 5859 5847.34 1461.46 1.34E+002 23.34 1.04E+001 First peak in a multiplet region Other peak in a multiplet region Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/7/02 2:31:41 PM Page 41242

N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0155.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ...IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/ea ) Uncertainty K-40 0.983 1460.81* 10. 67 2.240E-005 4. 130E-006 TL-208 0.437 *84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.456E-007 1.250E-007 763.13 1.64 860.37 12. 46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44. 60 1.148E-006 2.355E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 1.097E-006 2. 871E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4. 11 1764.49 15.80 PB-214 0.242 53.23 @ 1.11 74.81 6.21 77.11 10. 50 87.30 4.67 241.98* 7.49 1.534E-006 8.067E-007 295.21 19.20 !

351.92* 37.20 1.200E-006 2.729E-007

= Energy line found in the spectrum.

@ ='Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 2:31:41 PM Page -P243 I N T E R F E'R E N C E C O R R E C T E D R E PO R T Samp***************e**************D******

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0155.CNF Spectrum Number VA020155.CNF Performed & Reviewed By A0C. Date 1/A1/7/1b-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/ea ) Uncertainty % Uncertainty K-40 0.983 2.24E-005 4.13E-006 18.4 TL-208 @ 0.437 3.46E-007 1.25E-007 36.2 PB-212 0.313 1.15E-006 2. 36E-007 20.5 BI-214 0.269 1.1OE-006 2. 87E-007 26.2 PB-214 @ 0.242 1.23E-006 2.58E-007- 20.9

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P244 G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/7/02 2:42:56 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0156.CNF Spectrum Number VA020156.CNF Sample Description O/S Surface 0-6"#21 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan nels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.903E+002 ea Sample Collection Date 11/21/02 8:20:00 PM Spectrum Collection Date 12/7/02 2:28:41 PM Decay Corrected To 11/21/02 8:20:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By .

c.. Date /1A/07/07....

Supervisory Review Superisor Rei Date /.-L A6 / 0O; fEp

Peak Locate Analysis Report 12/7/02 2:42:56 PM Page 2P245

- - - - PE AK L OC A TE RE PO RT ***

Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0156.CNF Spectrum Number VA020156.CNF Sample Description O/S Surface 0-6"#21 Sample Type Soil Peak Locate Performed on 12/7/02 2:42:55 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.37 0. 2115 238. 51 5.22 1.2405 2 1407.57 0.2244 352.05 4.51 1. 3745 3 2437.86 0. 2140 609.45 4.59 1. 2485 4 5847.83 0.1370 1461.68 7.30 2.2397 Errors quoted at 1.96 sigma

Peak Analysis Report 12/7/02 2:42:56 PM PagEP246 P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0156.CNF Spectrum Number VA020156.CNF Sample Description O/S Surface 0-6"#21 Peak Analysis Performed'on 12/7/02 2:42:55 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 960 953.20 238.51 1. 02E+002 21.96 5. 39E+001 F 2 1401- 1415 1407. 58 352.05 6.10E+001 15.67 1. 17E+001 F 3 2431- 2445 2437.68 609.45 4. 30E+001 14.33 1.39E+001 F 4 5837- 5861 5848.20 1461.68 1.53E+002 24. 42 7. 89E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 2:42:56 PM Page 4P247

- - - - N U C L I D E I D E N T I F I C A T IO N R E PO R T *****

I **************************************************************

Sample I.D.- C:\GENIE2K\CAMFILES\VA-02-0156.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/ea ) Uncertainty K-4 0 0.970 1460.81* 10.67 2.217E-005 3.792E-006 PB-212 0.313 74.82 10.70 77.11 18. 00 87.30 8.00 238.63* 44.60 8.591E-00O 1.958E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 6.882E-007 2.358E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold =. 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/.7/02 2:42:56 PM Page -P248

- - I N T E R F E R E N C E C OR R E C T E D R E PO R T ***

I ***********************************

Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0156.CNF Spectrum Number VA020156.CNF Performed & Reviewed By eXC. 7 Ae) Date IA/ 07/O2-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/ea ) Uncertainty % Uncertainty K-40 0.970 2.22E-005 3. 79E-006 17. 1 PB-212 0.313 8.59E-007 1.96E-007 22.8 BI-214 0.269 6.88E-007 2. 36E-007 34.3

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S

$@ Peak Energy Peak Size in Peak CPS

- No. (keV) Counts per Second % Uncertainty F 2 352.05 1.0159E-001 2 5. 71 AX- Z/-/ ZC:f M = First peak in a multiplet region m = Other peak in a multiplet region F =,Fitted singlet Errors quoted at 1.96 sigma

P249 4************************************************************************

G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/16/02 8:19:43 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0156A.CNF Spectrum Number VA020156A.CNF Sample Description O/S Surface 0-6"#21(QC)

Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 3.217E+002 ea Sample Collection Date 11/21/02 8:20:00 PM Spectrum Collection Date 12/7/02 2:41:41 PM Decay Corrected To 11/21/02 8:20:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed ByB Fd 1/ F, , - Date 4z LZ//,_6 Supervisory Review, Soupe r R/a Date[,:?-/ I / Oa

I Peak Locate Analysis Report 12/16/02 8:19:43 PM Page 2 P250 P.E A K L O C A T E R E P O R T

- - **********************4**********+***************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0156A.CNF Spectrum Number VA020156A.CNF Sample Description O/S Surface 0-6"#21l(QC)

Sample Type Soil Peak Locate Performed on 12/16/02 8:19:42 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.90 0.1999 238. 63 6.12 1.1993 2 1407.25 0.2197 351.96 4.47 1. 6133 3 2332.69 0.2120 583.29 3.85 1.8509 4 2437.52 0.1982 609.46 4.84 1.4311 5 5847.61 0.1345 1461.58 7.75 2.2048 Errors quoted at 1.96 sigma

Peak Analysis Report 12/16/02 8:19:43 PM Pag'P251

- - - P E A K A N A L Y S I S R E P 0 R T **

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0156A.CNF Spectrum Number VA020156A.CNF Sample Description O/S Surface 0-6"#21(QC)

Peak Analysis Performed on 12/16/02 8:19:42 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 944- 960 .953. 70 238 . 63 1 . 20E+002 24.01 6. 76E+001 F 2 1398- 1416 1407.23 351.96 8. 45E+001 17.95 1. 77E+001 F 3 2324- 2343 2333.00 583.29 6. 85E+001 16.26 1. 30E+001 F 4 2430- 2445 2437.72 609.46 5. 49E+001 15.40 1. 07E+001 F 5 5837- 5860 5847.81 1461.58 1. 58E+002 24. 52 3. 59E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

,Interference Corrected Activity Report 12/16/02 8:19:43 PM Page 'P252

- - - - N U C L I D E I D E N T I F I C A T I 0 N R E P 0 R T *****

W2 * ************************************************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0156A.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ...IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/ea ) Uncertainty K-40 0.977 1460.81* 10.67 2.066E-005 3.448E-006 TL-208 0.437 84.90 1. 52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 5.254E-007 1-.299E-007 763.13 1. 64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44. 60 9.099E-007 1.949E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 7.938E-007 2. 313E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/16/02 8:19:43 PM Page -+253

*** I N T E R F E R E N C E C O R R E C T E D R-E P O R T ***

I C:\ENEKCAFLE\A02056.N Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0156A.CNF Spectrum Number VA020156A.CNF Performed & Reviewed By tI6-i ' L.Pt '-- Date __/__ /_

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/ea ) Uncertainty % Uncertainty K-40 0. 977 2. 07E-005 3. 45E-006 16.7 TL-208 @ 0.437 5.25E-007 1.30E-007 24.7 PB-212 0. 313 9. 1OE-007 1. 95E-007 21 . 4 BI-214 0.269 7. 94E-007 2.31E-007 29.1

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.96 1.4086E-001 21.24 Pb-9/1 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P254 i*** G A M M A S P E C T R U M A N A L Y S I'S Report Generated On 12/7/02 3:06:16 PM Detector DET01 Sample I.D. C:\GE]RIE2K\CAMFILES\VA-02-0157.CNF Spectrum Number VA020157.CNF 1$I/o; Sample Description O/S C1h 3WI& IC Sample Type Soil Sob- jcK Le-II 0 Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.835E+002 ea Sample Collection Date 11/21/02 8:20:00 PM Spectrum Collection Date 12/7/02 2:54:24 PM Decay Corrected To 11/21/02 8:20:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date /l./-O7/0,2J to,,,

Supervisory Review SuperisorReie Date Date /Z;/ /6 / 00

Peak Locate Analysis Report 12/7/02 3:06:16 PM Page 2P255 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0157.CNF Spectrum Number VA020157.CNF Sample Description O/S Sub- Surface 0-6"#21(QC)

Sample Type Soil Peak Locate Performed on 12/7/02 3:06:15 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 742.37 0.2729 185.80 4.33 0.6804 2 953.62 0.2142 238.59 5.72 1. 3461 3 1180.29 0.2 643 295.29 3.56 1. 0861 4 1407.00 0. 2149 351.88 4.85 1. 4999 5 2333.51 0. 2070 583.30 4.14 1. 6359 6 2437.21 0.2210 609.39

3.85 1.6295 7 5848.27 0. 1321. 1461.71 7.36 2. 3384 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 3:06:16 PM PageP256

- - - - P E AK A NA L YS IS R EP OR T***

Wg~ **************************************************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0157.CNF Spectrum Number VA020157.CNF Sample Description 0/S Sub- Surface 0-6"#21(QC)

Peak Analysis Performed on 12/7/02 3:06:15 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 738- 748 742.29 185.80 3.27E+001 14.00 2.73E+001 F 2 944- 963 953.51 238.59 1. 15E+002 22.28 5.82E+001 F 3 1176- 1185 1180.43 295.29 2. 57E+001 13.02 1.89E+001 F 4 1399- 1415 1406.89 351.88 7. 84E+001 17.56 1.54E+001 F 5 2325- 2341 2333.02 583.30 5. 14E+001 14.32 5. 67E+000 F 6 2430- 2443 2437.44 609.39 3.77E+001 12.74 7. 11E+000 F 7 5836- 5861 5848.32 1461.71 1.83E+002 -26.07 2. 06E+000 First peak in a multiplet region (MF=m = Other peak in a multiplet region A I F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 3:06:16 PM Page 'P257

- - - - N U C L I D E I D E N T I F I C A T IO N R E PO R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0157.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/ea ) Uncertainty K-40 0.968 1460.81* 10.67 2.705E-005 4.212E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 4.476E-007 1.285E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 9.898E-007 2. 061E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 6.180E-007 2.145E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.462 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 5.906E-007 3.031E-007 351.92* 37.20 1.052E-006 2.502E-007 RA-226 0.993 186.21* 3.28 3.367E-006 1.458E-006 U-235 0.685 89.95 2.70 143.76 10.50 185.71* 54.00 2.045E-007 8.850E-008

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errorsquoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 3:06:16 PM Page '25

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

,i************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0157.CNF Spectrum Number VA020157.CNF Performed & Reviewed By VC. Date ___/07/0;?

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/ea ) Uncertainty % Uncertainty K-40 0.968 2.71E-005 4.21E-006 15.6 TL-208 @ 0.437 4.48E-007 1.29E-007 28.7 PB-212 0.313 9. 90E-007 2. 06E-007 20.8 BI-214 0.269 6. 18E-007 2.15E-007 34.7 PB-214 @ 0.462 8. 65E-007 1. 93E-007 22.3

? RA-226 0.993 3.37E-006 1.46E-006 43.3

? U-235 0.685 2. 05E-007 8.85E-008 43.3

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D PE A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P259 G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/7/02 3:30:44 PM Detector DET01 Sample I.D. C:\GE]:NIE2K\CAMFILES\VA-02-0158.CNF Spectrum Number VA020158.CNF Sample Description O/S Surface 0-6"#22 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.948E+002 ea Sample Collection Date 11/21/02- 8:45:00 AM Spectrum Collection Date 12/7/02 3:17:55 PM Decay Corrected To 11/21/02 8:45:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

(- % Dead Time 0.03 %

I w Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date fZ/07 /0'2_

Supervisory Review SupervisoryReviewrDate Date frPy /6 / godx

.,Peak Locate Analysis Report 12/7/02 3:30:44 PM Page 4)260 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C:'\GENIE2K\CAMFILES\VA-02-0158.CNF Spectrum Number VA020158.CNF Sample Description O/S Surface 0-6"#22 Sample Type Soil Peak Locate Performed on 12/7/02 3:30:43 PM Peak Locate From Channel 100

.Peak Locate To Channel 8192-Peak Search Sensitivity 3.50 MDA Confidence ' 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.81 0.2062 238.65 5.92 1.1581 2 1179.98 0.2422 295.19 3.71 1. 3964 3 1408.46 0. 2301 352.28 4.38 1.2323 4 2333.98 0.2163 583.56 4.17 1. 3588 5 2437.84 0. 1965 609.49 5.38 1. 1414 6 5848.43 0. 1266 1461.74 9.04 1.9605 Errors quoted at 1.96 sigma

Peak Analysis Report 12/7/02 3:30:44 PM PagEP2M P E A K A N A L Y S I S R E P O R T

.,,,i *************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-01 5 8.CNF Spectrum Number VA020158.CNF Sample Description O/S Surface 0-6"#22 Peak Analysis Performed on 12/7/02 3:30:43 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 947- 962 953.78 238.65 1. 05E+002 22.47 6.16E+001 F 2 1173- 1187 1180.04 295.19 5. 36E+001 15.03 1. 63E+001 F 3 1403- 1416 1408.51 352.28 5.81E+001 17.03 2.71E+001 F 4 2326- 2342 2334.08 583.56 4.24E+001 14.38 1.82E+001 F 5 2431- 2445 2437.84 609.49 5.31E+001 15.65 1.52E+001 F 6 5837- 5859 5848.47 1461.74 1.73E+002 25.73 1.92E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet E

, Errors quoted at 1.96 sigma

,Interference Corrected Activity Report 12/7/02 3:30:44 PM Page IP262

- - - - N U C L I D E I D E N T I F I C A T IO N R E PO R T *****

t****** ***************** ******* ******* ***** *** *** ****************** **** ****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0158.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/ea ) Uncertainty K-40 0.966 1460.81* 10.67 2.458E-005 3.971E-006 TL-208 0.433 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.549E-007 1.230E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 8.657E-007 1.973E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 8.374E-007 2.555E-007 768.36 5.04 806.17 1.23' 934.06 3.21 1120.29 15.10 1155.19 1.70 1238. 11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.460 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.184E-006 3.463E-007 351.92* 37.20 7.508E-007 2.280E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold =. 0.10 Errors quoted at 1.960 sigma "A ,, -

Interference Corrected Activity Report 12/7/02 3:30:44 PM Page '263

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Wv ***********************************************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0158.CNF Spectrum Number VA020158.CNF Performed & Reviewed By m,

, -C*A

, , Date j 1 2- 40 77 -/cp--,-

Nuclide Wt mean Wt mean Wt mean Nuclide Id -Activity Activity Activity Name Confidence (uCi/ea ) Uncertainty % Uncertainty K-40 0.966 2. 46E-005 3. 97E-006 16.2 TL-208 @ 0.433 3.55E-007 1.23E-007 34.7 PB-212 0.313 8. 66E-007 1. 97E-007 22.8 BI-214 0.269 8.37E-007 2.55E-007 30.5 PB-214 @ 0.460 8.82E-007 1.90E-007 -21.6

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K ***

Peak Energy - Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P264

-- ***** G A M M A S P E C T R U M A N A L Y S I S t ************,*************************

Report Generated On 12/7/02 5:32:52 PM Detector DET01 Sample I.D. C:\GE'NIE2K\CAMFILES\VA-02-0159.CNF Spectrum Number VA020159.CNF Sample Description 0/S Sub-urface 6-12"#22 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 3.132E+002 ea Sample Collection Date 11/21/02 8:45:00 AM Spectrum Collection Date 12/7/02 3:30:18 PM Decay Corrected To 11/21/02 8:45:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2

' C,,

1c;1/7baa Performed & Reviewed By Date O)

/Z/ 7 /

_ V Supervisory Review Date I/d- 7 / 5.2

Pe'ak L6cate Analysis Report 12/7/02 5:32:52 PM Page 0265 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0159.CNF Spectrum Number VA020159.CNF Sample Description O/S Sub-urface 6-12"#22 Sample Type Soil Peak Locate Performed on 12/7/02 5:32:51 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 954.01 0.1969

238.71 6.19 1. 1816 2 1180.20 0.2316 295.23 4.66 1.0301 3 1407.22 0.2104 352.01 4.87 1. 3677 4 2332.75 0.2161 583.27 4.27 1.3667 5 2437.63 0.2299 609.37 3.54 1.6342 6 3648.05 0.2147 911. 95 3.66 1.5665 7 5848.79 0.1319 1461.75 8.28 2.0112 Errors quoted at 1. 96 sigma

I Peak Analysis Report 12/7/02- 5:32:52 PM PagEP2g P E A K A N A L Y S I S R E P O R T *

- - - - t*****************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0159.CNF Spectrum Number VA02 0159. CNF Sample Description O/S Sub-urface 6-12"#22 Peak Analysis Performed on 12/7/02 5:32:51 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 947- 961 954.01 238.71 1. 26E+002 24.26 6. 04E+001 F 2 1174- 1186 1180.18 295.23 5.02E+001 15.91 2. 41E+001 F 3 1402- 1415 1407.44 352.01 7.31E+001 17. 65 1. 73E+001 F 4 2325- 2339 2332.91 583.27 4.27E+001 13.70 1.01E+001 F 5 2431- 2444 2437.34 609.337 4. 18E+001 14.29 1. 54E+001 F 6 3642- 3656 3648.25 911.95 2.83E+001 11.53 5. 46E+000 F 7 5836- 5860 5848.50 1461.75 1. 59E+002 24.67 2.02E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/7/02 5:32:52 PM Page i6 N U C L I D-E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0159.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ...IDENTIFIED NUCLIDES Nuclide. Id - Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/ea ) Uncertainty K-40 0.965 1460.81* 10.67 2.130E-005 3.562E-006 TL-208 0.437 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.364E-007 1.105E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 9.805E-007 2.033E-007 300.09 .3.41 BI-214 0.269 609.31* 46.30 6.200E-007 2. 176E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.462 53.23 @ 1.11 74.81 6.21 77.11 10. 50 87.30 4.67 241.98 7.49 295.21* 19.20 1.044E-006 3.421E-007 351.92* 37.20 8.875E-007 2.258E-007

= Energy line found in the spectrum.

@= Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Intdrf'erence Corrected Activity Report 12/7/02 5:32:52 PM Page +268

- ** I NT E RFE R E NCE CO RR EC T ED R EP OR T **

Sample I.D. - C:\GENIE2K\CAMFILES\VA-02-0159.CNF Spectrum Number VA020159.CNF Performed & Reviewed By . , . _

Date /_

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/ea ) Uncertainty % Uncertainty K-40 0.965 2. 13E-005 3.56E-006 16.7 TL-208 @ 0.437 3.36E-007 1.1OE-007 32. 8 PB-212 0.313 9. 80E-007 2. 03E-007 20.7 BI-214 0.269 6.20E-007 2. 18E-007 35.1 PB-214 @ 0.462 9. 35E-007 1.88E-007 20.2

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 6 911.95 4.7145E-002 40.76 4 -

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P269

- - - - GA M MA S PE CT R UM A NAL Y SI S***

Report Generated On 12/7/02 5:46:45 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0160.CNF Spectrum Number VA020160.CNF Sample Description 0/S Surface 0-6"#23 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.953E+002 g Sample Collection Date 11/21/02 9:35:00 AM Spectrum Collection Date 12/7/02 5:32:08 PM Decay Corrected To 11/21/02 9:35:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By 'CO/v V"', Date ___

Supervisory Review 22 Date /7 1 Q __

Peak Locate Analysis Report 12/7/02 5:46:45 PM Page :P270 P E A K L O C A T E R E P O R T Detector DET01 -

Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0160.CNF Spectrum Number VA020160.CNF Sample Description O/S Surface 0-6"#23 Sample Type Soil Peak Locate Performed on 12/7/02 5:46:44 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 952.07 0.197 9 238.20 5.99 1. 1887 2 1405.04 0. 2267 351.28- 3.65 1. 6902 3 2329.50 0.2134 582. 40 3.84 1. 8168 4 3639.85 0.2195 909.90 3.73 1. 2 649 5 5838.56 0.1376 1459.28 7.59 2.2751 Errors quoted at 1.96 sigma

Peak Analysis Report 12/7/02 5:46:45 PM Pag(P27)

P E A K A N A L Y S I S R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0160.CNF Spectrum Number VA020160.CNF Sample Description O/S Surface 0-6"#23 Peak Analysis Performed on 12/7/02 5:46:44 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 946- 959 951.96 238.20 1. 17E+002 23.47 5.44E+001 F 2 1394- 1411 1404.50 351.28 7. 38E+001 16.61 1.50E+001 F 3 2321- 2338 2329.43 582.40 5.16E+001 14.05 4. 59E+000 F 4 3633- 3646 3640.04 909.90 2.19E+001 10.73 7. OOE+000 F 5 5827- 5851 5838.62 1459.28 1. 28E+002 22.18 0.OOE+000 M = First peak in a miltiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/7/02 5:46:45 PM Page k272

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

W/ * ************************************************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0160.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield ActivityI Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 O. 911 1460.81* 10.67 1. 813E-005 3.344E-006 TL-2 08 0.423 84 . 90 1.52 277.35 6.80 510.84 @ 21.60 583. 14* 84.20 4.307E-007 1.210E-007 763.13 1.64 860.37 12.46 PB-212 0.309 74.82 10.70 77.11 18.00

87. 30 8.00 238. 63* 44.60 9.633E-007 2.072E-007 300.09. 3.41

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 5:46:45 PM Page -k73

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

V Sml I *D*

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0160.CNF Spectrum Number VA020160.CNF Performed & Reviewed By ,Ae - Date D7 M 2>

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty *% Uncertainty K-40 0. 911 1.81E-005 3.34E-006 18.4 TL-208 @ 0.423 4.31E-007 1.21E-007 28.1 PB-212 0.309 9.63E-007 2.07E-007 21.5

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertaint F 2 351.28 1.2305E-001 22.50 .. e -g-F 4 909.90 3-.6539E-002 48.92 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P274

- - - G A M M A S P E C T R U M A N A L Y S I S

.,I ***********************************

Report Generated On 12/7/02 6:03:22 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0161.CNF Spectrum Number VA020161.CNF Sample Description O/S Sub-Surface 6-12"#23 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chanLnels) -100 - 8192 Peak Area Range (in channe !ls) 100 - 8192 Identification Energy Tole!rance 2.00 keV Sample Size 3.045E+002 g Sample Collection Date 11/21/02 9:35:00 AM Spectrum Collection Date 12/7/02 5:45:57 PM Decay Corrected To 11/21/02 9:35:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.3 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By . to? . ) ez Date /,5, /7 / Z-2 2p d 6 Supervisory Review Date (.k/ -7/ 0 -~

Peak Locate Analysis Report 12/7/02 6:03:22 PM Page 2P275 P E A K L O C A T E R E PO R T Isw Detector DET01 Sample I.D. C:'\GENIE2K\CAMFILES\VA-02-0161.CNF Spectrum Number VA020161.CNF Sample Description O/S Sub-Surface 6-12"#23 Sample Type Soil Peak Locate Performed on 12/7/02 6:03:21 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 951.64 0. 2077 238. 10 5.04 1. 2723 2 1178.24 0.2392 294.75 4.25 1.0687 3 1351.63 0.2631 338.02 3.63 1. 0645 4 1405.68 0. 2161 351.54 4.65 1.5846 5 2330.14 0. 2023 582.62 5.25 1.0489 6 2433.87 0.2072 608. 56 4.11 1. 7736 7 5839.05 0.1368 1459.38 7.11 2.4246 Errors quoted at 1.96 sigma

.Peak Analysis Report 12/7/02 6:03:22 PM Pag'P2A)

P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0161.CNF Spectrum Number VA020161.CNF Sample Description O/S Sub-Surface 6-12"#23 Peak Analysis Performed on 12/7/02 6:03:21 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 957 951.59 238.10 1. 07E+002 22.28 4.38E+001 F 2 1171- 1187 1178.30 294.75 4.46E+001 16.04 4.25E+001 F 3 1346- 1357 1351.46 338.02 3.26E+001 12.32 9.24E+000 F 4 1398- 1413 1405.56 351.54 8.21E+001 17.88 1.58E+001 F 5 2324- 2338 2330.32 582.62 3.77E+001 13.82 1. 51E+001 F 6 2426- 2443 2434.10 608.56 6. 10E+001 15.78 1.17E+001 F 7 5826- 5850 5839.01 1459.38 1.71E+002 25.17 3. 95E+000 First peak in a multiplet region Other peak in a multiplet region Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 6:03:22 PM Page +7 N U C L I D E I D E N T I F I C A T I O N R EPORT *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0161.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield ActivityI Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.921 1460.81* 10.67 2.353E-005 3.762E-006 TL-2 08 0.430 84.90 1.52 277.35 6.80 510.84 @ 21.60 583. 14* 84.20 3.052E-007 1. 139E-007 763.13 1.64 860.37 12.46 PB-212 0.308 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44.60 8.571E-007 1.899E-007 300.09 3.41 BI-214 0.259 609. 31* 46.30 9.302E-007 2. 517E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.458 53.23 @ 1. 11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 9.525E-007 3.516E-007 351. 92* 37.20 1.024E-006 2.377E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 6:03:22 PM Page P278

- - I N T E R F E R E N C E C O R R E C T E D R E PO R T ***

=~Sml I.*************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0161.CNF Spectrum Number VA020161.CNF Performed & Reviewed By NAe7

";,)L.- - Date /;/07/62-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.921 2. 35E-005 3.76E-006 16.0 TL-2 08 @ 0.430 3.05E-007 1.14E-007 37.3 PB-212 0.308 8.57E-007 1.90E-007 22.2 BI-214 0.259 9.30E-007 2. 52E-007 27.1 PB-214 @ 0.458 1.OOE-006 1.97E-007 19.7,

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 3 338.02 5.4362E-002 37.78 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P279 G A M M A S P E C T R U M A N A L Y S I S V ******************************************************************** ***

Report Generated On 12/7/02 6:11:13 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0162.CNF Spectrum Number VA020162.CNF Sample Description O/S Surface 0-6"#24 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 3.408E+002 g Sample Collection Date 11/21/02 '9:35:00 AM Spectrum Collection Date 12/7/02 '5:58:13 PM Decay Corrected To 11/21/02 9:35:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By oPC. & Date /ZJ/ 7 / ae 0-Supervisory Review SuperisoryReviw Dat Date /&, 7 ~t2 Hi-_, / 0---'

Peak Locate Analysis Report 12/7/02 6:11:13 PM Page :280 P E A K L OC A T E R E PO R T *

- * * * * * * ** *s** * * **,,* ** * * * ** **

Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0162.CNF Spectrum Number VA020162.CNF Sample Description O/S Surface 0-6"#24 Sample Type Soil Peak Locate Performed on 12/7/02 6:11:12 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 952.03 0. 2022 238.11 5.19 1.3116 2 1178.55 0.2737 294.81 3.97 0.5912 3 1405.49 0.2212 351.59 4.69 1;.2091 4 2433.83 0.2039 608.53 5.06 1.3437 5 5838.10 0.1343 1459.21 7.18 2. 2512 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 6:11:13 PM PagP281 P E A K A N A L Y S I S R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0162.CNF Spectrum Number VA020162.CNF Sample Description O/S -Surface 0-6"#24 Peak Analysis Performed on 12/7/02 6:11:12 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 944- 959 951.63 238.11 . 19E+002 23.83 6. 85E+001 F 2 1174- 1183 1178.51 294.81 2. 66E+001 13.71 3.62E+001 F 3 1397- 1412 1405.73 351.59 5. 70E+001 15.78 1. 61E+001 F 4 2428- 2442 2434.00 608.53 4. 37E+001 14.30 1.OOE+001 F 5 5827- 5851 5838.33 1459.21 1. 71E+002 25.97 8. 33E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 6:11: 13 PM Page +282

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0162.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ..IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activityr Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.903 1460.81* 10.67 2.106E-005 3.453E-006 PB-212 0.308 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 8.525E-007 1.824E-007 300.09 3.41 BI-214 0.258 609.31* 46.30 5.959E-007 2.005E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.459 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 5.072E-007 2.650E-007 351.92* 37.20 6.361E-007 1.832E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7 /02 6: 11: 13 PM Page P283

- - I N T E R F E R E N C E C.O R R E C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0162.CNF Spectrum Number VA020162.CNF Performed & Reviewed By xt .Z Date __ /D7 /02 Nuclide Wt mean Wt mean Wt. mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.903 2.11E-005 3.45E-006 16.4 PB-212 0.308 8.52E-007 1.82E-007 21.4 BI-214 0.258 5. 96E-007 2.OOE-007 33.6 PB-214 @ 0.459 5. 94E-007 1.51E-007 25.4

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P284 G A M M A S P E C T R U M A N A L Y S I S uV ************************.************

Report Generated On 12/7/02 6:25:13 PM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0163.CNF Spectrum Number VA020163.CNF Sample Description O/S Sub-Surface 6-12"#24 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chanLnels) 100 - 8192 Peak Area Range (in channe !ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 2.625E+002 g Sample Collection Date 11/21/02 9:35:00 AM Spectrum Collection Date 12/7/02 6:09:41 PM Decay Corrected To 11/21/02 9:35:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

1@ Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By to^ cla Date - /~2-15/t2 Supervisory Review Sr r vD07 Date - '6/- 7 / a Peak Locate Analysis Report 12/7/02 6:25:13 PM Page ?285 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C:'\GENIE2K\CAMFILES\VA-02-0163.CNF Spectrum Number VA020163.CNF Sample Description O/S Sub-Surface 6-12"v#24 Sample Type Soil Peak Locate Performed on 12/7/02 6:25:13 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 952.03 0.2190 238.13 5.75 1.2303 2 1404.73 0.2138 351.38 5.05 1. 3624 3 2329.13 0.2113 582.34 4.80 0.9762 4 2433.65 0.2046 608.40 4.15 1. 5343 5 3641.30 0.2132 910.24 3.80 1. 5199 6 5838.54 0.1344 1459.26 7.75 2. 0081 Errors quoted at 1.96 sigma

Peak Analysis Report 12/7/02 6:25:14 PM Pagp 2

- - - - I P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0163.CNF Spectrum Number VA020163.CNF Sample Description O/S Sub-Surface 6-12"#24 Peak Analysis Performed on 12/7/02 6:25:13 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 944- 962 951.70 238.13 1.01E+002 22.11 7.49E+001 F 2 1398-' 1412 1404.90 351.38 7. 12E+001 16.76 1. 05E+001 F 3 2323- 2336 2329.19 582.34 3. 48E+001 12.91 1. 17E+001 F 4 2426- 2442 2433.49 608.40 5.26E+001 15.00 1.16E+001 F 5 3634- 3648 3641.41 910.24 2. 85E+001 11.11 3.67E+000 F 6 5828- 5849 5838.53 1459.26 1. 44E+002 23.84 7.12E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 6:25:14 PM Page P287 N U C L'I D E I D E N T I F I C A T IO N RE P ORT **

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0163.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.908 1460.81* 10.67 2.297E-005 4.067E-006 TL-208 0.421 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.268E-007 1.233E-007 763.13 1.64 860.37 12.46

- PB-212 0.308 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 9.362E-007 2.174E-007 300.09 3.41 BI-214 0.254 609.31* 46.30 9.307E-007 2.753E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

=-Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 -6:25:14 PM Page 0288

- - I N T E-R F E R E N CEE C RRE C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0163.CNF Spectrum Number VA020163.CNF ,

Performed & Reviewed By Date ;-L Z7/ az-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.908 2. 30E-005 4.07E-006 17.7 TL-208 @ 0.421 3.27E-007 1.23E-007 37. 7 PB-212 0.308 9.36E-007 2.17E-007 23.2 BI-214 0.254 9.31E-007 2. 75E-007 29.6

? = nuclide is part. of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak- Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.38 1.1861E-001 23.55 F 5 910.24 4.7552E-002 38.95 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P289

+**** GA MM A SP EC TR U M ANAL Y SI S Report Generated On 12/7/02 6:39:22 PM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0164.CNF Spectrum Number VA020164.CNF Sample Description O/S Surface 0-6"#25 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.930E+002 g Sample Collection Date 11/21/02 10:15:00 AM Spectrum Collection Date 12/7/02 6:22:11 PM-Decay Corrected To 11/21/02 10:15:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By -

Date / /__

Supervisory Review Suprvi or Re iewDa Datee ~ // -7 / 0 CL _

Peak Locate Analysis Report 12/7/02 6:39:22 PM Page P290 PEA K L O C A T E R E PO R T ******

+**************** ****** *** *************** ****** **** *** ** **** ** ******** *** ***

Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0164.CNF Spectrum Number VA020164.CNF Sample Description O/S Surface 0-6"#25 Sample Type Soil Peak Locate Performed on 12/7/02 6:39:21 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 951.90 0.2027 238.15 6.63 1. 0405 2 1404.54 0.2349 351.26 4.32 1.3244 3 2329.01 0.2282 582.18 3.93 1.5525 4 2433.13 0.2079 608.35 4.40 1.5457 5 3640.63 0. 1980 910.05 4.53 1. 5904 6 5837.87 0. 1377 1459.10 7.02 2. 4767 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 6:39:22 PM Pag'P20 P E-A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0164.CNF Spectrum Number VA020164. CNF Sample Description 0/S Surface 0-6"#25 Peak Analysis Performed on 12/7/02 6:39:21 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 958 951.78 238.15 1. 05E+002 22. 99 5.75E+001 F 2 1396- 1413 1404.44 351.26 5. 89E+001 16.05 2.26E+001 F 3 2322- 2336 2328.53 582.18 3.91E+001 12.64 5.25E+000 F 4 2424- 2440 2433.29 608.35 5.37E+001 14.92 9. 75E+000 F 5 3634- 3647 3640.64 910.05 3.43E+001 11.93 0. OOE+000 F 6 5826- 5849 5837.89 1459.10 1. 74E+002 25. 58 7. 86E+000 M = First peak in a multiplet region m =.Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

,\

Interference Corrected Activity Report 12/7/02 6:39:22 PM Page 0292

- - - - N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0164.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.889 1460.81* 10.67 2.494E-005 3.975E-006 TL-2 08 0.413 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.286E-007 1.088E-007 763.13 1.64 860.37 12.46 PB-212 0.309 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 8.759E-007 2.026E-007 300.09 3.41 BI-214 0.252 609.31* 46.30 8.505E-007 2.459E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 6:39:22 PM Page P293

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T 1* ***********************************************************************

Sample I.-D. C:\GENIE2K\CAMFILES\VA-02-0164.CNF Spectrum Number VA020164.CNF Performed & Reviewed By Date /4Z/' /Oz.-

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.889 2. 49E-005 3.97E-006 15.9 TL-208 @ 0.413 3.29E-007 1.09E-007 33.1 PB-212 0.309 8.76E-007 2.03E-007 23.1 BI-214 0.252 8.51E-007 2.46E-007 28.9

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I-F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.26 9.8113E-002 27.26 "'/

F 5 910.05 5.7131E-002 34.79 eCRg M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet

Errors quoted at 1. 96 sigma

P294 G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/7/02 6:47:53 PM Detector DET01 Sample I.D. C:\GE]NIE2K\CAMFILES\VA-02-0165.CNF Spectrum Number VA020165.CNF Sample Description O/S Sub-Surface 6-12"#25 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3..50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 3.065E+002 g Sample Collection Date 11/21/02 10:15:00 AM Spectrum Collection Date 12/7/02 6:35:34 PM Decay Corrected To 11/21/02 10:15:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

-Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On .11/13/02 Calibration Geometry Used 2 Performed & Reviewed By jlt- .- 60IAI Date 12.1Z7 /1-Supervisory Review 1!~76161c2 Supervisory Review Q~Dte Date 1-2-/

4L//5 7 / D

Peak Locate Analysis Report 12/7/02 6:47:53 PM Page 2P295

- - - - P E AK L OC A TE RE P ORT ***

Detector DET01 Sample I.D. C:'\GENIE2K\CAMFILES\VA-02-016 5 .CNF Spectrum Number VA020165.CNF Sample Description O/S Sub-Surface 6-12"#25 Sample Type Soil Peak Locate Performed on 12/7/02 6:47:52 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 950.90 0. 1884 237.97 6.75 1. 3423 2 1405.06 0. 2030 351.35 5.28 1.3646 3 2329.35 0. 2029 582.32 4.73 1.4238 4 2433.05 0. 1990 608.35 4.60 1.6516 5 5837.15' 0. 1347 1458.86 7.47 2. 3001 Errors quoted at 1.96 sigma

Peak Analysis Report 12/7/02 6:47:53 PM PageP2i6 P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0165.CNF Spectrum Number VA020165.CNF Sample Description O/S Sub-Surface 6-12"#25 Peak Analysis Performed on 12/7/02 6:47:52 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 942- 959 951.03 237.97 1. 67E+002 -26.02 5.06E+001 F 2 1397- 1411 1404.77 351.35 8.55E+001 18.62 1. 75E+001 F 3 2321- 2336 2329.12 582.32 5. 17E+001 14.74 9.14E+000 F 4 2424- 2442 2433.29 608. 35 6.64E+001 16.32 1.10E+001 F 5 5826- 5849 5836.92 1458.86 1. 66E+002 25.00 2.18E+000 First peak in a multiplet region Other peak in a multiplet region Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/7 /02 6:47:53 PM Page 4P297 N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0165.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

....................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.859 1460.81* 10.67 2.267E-005 3.699E-006 TL-208 0.420 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 4.154E-007 1.220E-007 763.13 1.64 860.37 12.46 PB-212 0.304 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1.327E-006 2.302E-007 300.09 3.41 BI-214 0.252 609.31* 46.30 1.005E-006 2.598E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 6:47:53 PM Page 5P298 t *** I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

'V **********************************************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0165.CNF Spectrum Number VA020165.CNF Performed & Reviewed By Date 1_21 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uci/g Uncertainty % Uncertainty K-40 0.859 2.27E-005 3.70E-006 16.3 TL-208 @ 0.420 4.15E-007 1.22E-007 29.4 PB-212 0.304 1. 33E-006 2. 30E-007 17. 3 BI-214 0.252 1.01E-006 2. 60E-007 25.8

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.35 1.4244E-001 21.79 /0 /

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P299

- *** G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/7/02 6:58:40 PM Detector DET01 Sample I.D. C:\GE'NIE2K\CAMFILES\VA-02-0166.CNF Spectrum Number VA020166.CNF Sample Description O/S Surface 0-6"#26 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.699E+002 g Sample Collection Date 11/21/02 10:40:00 AM Spectrum Collection Date 12/7/02 6:47:07 PM Decay Corrected To 11/21/02 10:40:00 AM Collected By L. Finn Live Time 600.0. seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By . V - X," Date D 77l 0.

1 I 4- a 91.Ft Dae7 10 Supervisory Review Date t

Peak Locate Analysis Report 12/7/02 6:58:40 PM' Page 2p3OO P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0166.CNF Spectrum Number VAO20 166. CNF Sample Description O/S Surface 0-6"#26 Sample Type Soil Peak Locate Performed on 12/7/02 6:58:39 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (key) 1 950.98 0. 2178 238.05 4.79 1.3616 2 1177.73 0. 2565 294.68 3.97 1. 1253 3 2329.92 0. 2399 582.42 3.70 1.2881 4 2433.47 0. 2103 608.42 4.37 1. 6679 5 3639.54 0. 203.9 910.03, 4.04 1. 8447 6 5837.07 0.1344 1458.90 7.02 2.3671 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 6:58:40 PM Pagep3al P E A K A N A L Y S I S R-E P O R T S **************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0166.CNF Spectrum Number VA020166.CNF Sample Description O/S Surface 0-6"#26 Peak Analysis Performed on 12/7/02 6:58:39 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 944- 960 951.35 238.05 1. 12E+002 22.02 5. 19E+001 F 2 1172- 1186 1178.00 294.68 4.04E+001 14.02 1. 89E+001 F 3 2324- 2336 2329.49 582.42 2. 32E+001 10.91 7. 73E+000 F 4 2427- 2441 2433.56 608.42 ,5.74E+001 15.32 7. 90E+000 F 5 3632- 3646 3640.55 910.03 3.53E+001 12.45 5.17E,+000 F 6 5825- 5849 5837.09 1458.90 1.74E+002 25.65 6. 33E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 6:58:40 PM Page 4P302

- - - - N U C L I D E I D E N T I F I C A T I ON R E P OR T***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0166.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield ActivityF Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.864 1460. 81* 10.67 2.700E-005 4.324E-006 TL-208 0.424 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 2.117E-007 1.007E-007 763.13 1.64 860.37 12.46 PB-212 0.306 74.82 10.70 77.11 18.00 87.30 8.00 238. 63* 44. 60 1.007E-006 2.131E-007 300.09 3.41 BI-214 0.255 609. 31* 46.30 9.879E-007 2.748E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4. 11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960,sigma

Interference Corrected Activity Report 12/7/02 6:58:40 PM Page 5P303 I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0166.CNF Spectrum Number VA020166.CNF Performed & Reviewed By _ S Date ___

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.864 2.70E-005 4. 32E-006 16.0 TL-208 @ -0.424 2. 12E-007 1.O1E-007 47.6 PB-212 0.306 1. O1E-006 2. 13E-007 21.2 BI-214 0.255 9. 88E-007 2.75E-007 27.8

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 294.68 6.7267E-002. 34.74 -

F 5 910.03 5.8846E-002 35.26 K1PZ M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P304 A ***

A R*A******************* * **************I*********

v****G A MM A S PE CT R UM A NA LY SI S***

Report Generated On 12/7/02 7:14:11 PM Detector DET01 Sample I.D. C:\GE]9IE2K\CAMFILES\VA-02-0167 .CNF Spectrum Number VA020167.CNF Sample Description O/S Sub-Surface 6-12"#26 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 3.429E+002 g Sample Collection Date 11/21/02 10:40:00 AM Spectrum Collection Date 12/7/02 6:57:52 PM Decay Corrected To 11/21/02 10:40:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.04 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date /.2/ 7 /!S2-Superisor Revew Dae LPŽ//

Supervisory Review Date All A/j/ Oa

Peak Locate Analysis Report 12/7/02 7:14:11 PM Page 2P305 P E A K L O C A T E R E PO R T I **************************************************************************

.Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0167.CNF Spectrum Number VA020167.CNF Sample Description O/S Sub-Surface 6-12"#26 Sample Type Soil Peak Locate Performed on 12/7/02 7:14:10 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 741.27 0.2585 185.51 3.81 1. 1191 2 951.63 0.2013 238.11 6.21 1. 2038 3 1404.60 0. 2222 351.25 4.15 1. 5917 4 2328.66 0. 2069 582.16 4. 35 1. 7330 5 2432.16 0. 1911 608.11 4.96 1. 4906 6 3639.92 0. 2033 909.78 4.03 1. 5942 7 5838.15 0. 1397 1459.04 6.62 2. 4360 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/7/02 7:14:11 PM Pge.3d6

- - - - P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0167.CNF Spectrum Number VA020167.CNF Sample Description. 0/S Sub-Surface 6-12"#26 Peak Analysis Performed on 12/7/02 7:14:10 PM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 733- 747 741.12 185.51 5.58E+001 16.46 3.11E+001 F 2 943- 960 951.61 238.11 1.28E+002 24.95 8. 81E+001 F 3 1395- 1412 1404.41 351.25 8. 10E+001 17.67 1.94E+001 F 4 2320- 2337 2328.47 582.16 6.19E+001 15.08 4.60E+000 F 5 2423- 2441 2432.33 608.11 6. 60E+001 16.99 1.74E+001 F 6 3633- 3648 3639.57 909.78 3.39E+001 13.03 9. 54E+000 F 7 5825- 5850 5837.66 1459.04 1. 56E+002 24.19 6. 40E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F - Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 7:14:11 PM Page 4P307

`g/ ***** N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0167.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.882 1460.81* 10.67 1.902E-005 3.184E-006 TL-208 0.413 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 4.447E-007 1. 127E-007 763.13 1.64 860.37 12.46 PB-212 0.308 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 9.132E-007 1.905E-007 300.09 3.41 BI-214 0.243 609.31* 46.30 8.934E-007 2.405E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 RA-226 0.981 186.21* 3.28 4.747E-006 1.434E-006 U-235 0.684 89.95 2.70 143.76 10. 50 185.71* 54.00 2.883E-007 8.693E-008

-= Energy line found in the spectrtn TU.

@ = Energy line not used for Weighteci Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 7:14:11 PM Page 5P308

- - I N T E R F E R E N C E C O R R E C T E D R E P O R T ***

~~-,~~ * ********************* ** ** * *** ** * *** ** ** ** ** * * ** * **

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0167.CNF Spectrum Number VA020167.CNF Performed & Reviewed By

eYzf- Date /cl 7 /0Z-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.882 1.90E-005 3. 18E-006 16.7 TL-208 @ 0.413 4.45E-007 1.13E-007 25.3 PB-212 0.308 9. 13E-007 1.91E-007 20.9 BI-214 0.243 8.93E-007 2. 41E-007 26.9

? RA-226 0.981 4.75E-006 1.43E-006 30.2

? U-235 0.684 2.88E-007 8. 69E-008 30.1

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S ***

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 3 351.25 1.3499E-001 21.81 F 6 909.78 5.6521E-002 38.43 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P309 I*** G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/7/02 7:24:29 PM Detector DET01 Sample I.D. C:\GEI4IE2K\CAMFILES\VA-02-0168.CNF Spectrum Number VA020168.CNF Sample Description O/S Surface 0-6"#27 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.591E+002 g Sample Collection Date 11/21/02 10:40:00 AM Spectrum Collection Date 12/7/02 7:12:34 PM Decay Corrected To 11/21/02 10:40,:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By ,er2 Date /_L/ _1 /O2, Supervisory Review SuerisryReie 9 Dte

.Date /-I/

1g 7/

7 / (52-

Peak Locate Analysis Report 12/7/02 7:24:29 PM Page 2P310 P E A K L O C A T E R E P O R T j @ -Sc************************************

Il~

Detector DETOI Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0168.CNF Spectrum Number VA020168.CNF Sample Description O/S Surface 0-6"#27 Sample Type Soil Peak Locate Performed on 12/7/02 7:24:28 PM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 951.26 0. 2001 238.01 6.15 1.2677 2 *1404.87 0. 2289 351.40 3.98 1. 4091 3 2329.49 0. 2038 582.44 4.71 1. 4253 4 2433.58 0. 2246 608.49 3.71 1. 4704 5 5837.95 0. 14 62 1459.09 5.85 2. 4710 Errors quoted at 1. 96 sigma

I Peak Analysis Report 12/7/02 7:24:29 PM Pagep3 01 P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0168.CNF Spectrum Number VA020168.CNF Sample Description O/S Surface 0-6"#27 Peak Analysis Performed 12/7/02 7:24:28 PM Peak Analysis From-Chanr 100 Peak Analysis To Channe] 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 943- 959 951.22 238.01 1. 30E+002 23.55 5.OOE+001 F 2 1399- 1412 1405.01 351.40 5.99E+001 16.14 1.58E+001 F 3 2323- 2337 2329.58 582.44 5.01E+001 14.23 5.72E+000 F 4 2425- 2442 2433.83 608.49 4. 03E+001 14. 05 1. 61E+001 F 5 5826- 5850 5837.86 1459.09 1. 29E+002 21.75 0. OOE+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/7/02 7:24:29 PM Page 4P312 V***** N U C L I D E I D E N T I F I C A T IO N R E P O R T *****

,v~ * ************************************************************************

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0168.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... ...IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.889 1460.81* 10.67 2.095E-005 3.754E-006 TL-208 0.425 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 4.766E-007 1.394E-007 763.13 1.64 860.37 12.46 PB-212 0.305 74.82 10.70 77.11 18. 00 87.30 8.00 238.63* 44.60 1.222E-006 2.402E-007 300.09 3.41 BI-214 0.257 609.31* 46.30 7.214E-007 2.581E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/7/02 7:24:29 PM Page +1

- - .I N.T E R F E R E N C E C O R R E C T E D R E P O R T ***

,/************************************

Sample I.D. CC:\GENIE2K\CAMFILES\VA-02-0168.CNF

-Spectrum Number VA020168.CNF Performed & Reviewed By >CA

% t Date _ /;. Z /

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.889 2. 09E-005 3.75E-006 17.9 TL-208 @ 0.425 4.77E-007 1.39E-007 29.2 PB-212 0.305 1.22E-006 2. 40E-007 19.7 BI-214 0.257 7.21E-007 2. 58E-007 35.8

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.40 9.9815E-002 26.95 2 --;!

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P314 G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/8/02 7:19:33 AM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0169.CNF Spectrum Number VA020169.CNF Sample Description 0/S Sub-Surface 6-12"#27 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.713E+002 g Sample Collection Date 11/21/02 10:40:00 AM Spectrum Collection Date 12/7/02 7:23:27 PM Decay Corrected To 11/21/02 10:40:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds kgw % Dead Time 0.03 %

, Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By /_1 1_1110001V Date /a J/ 0 L Supervisory Review Date _/t./ P /0 ~

Peak Locate Analysis Report 12/8/02 7:19:33 AM Page 2P31 5 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C:'\GENIE2K\CAMFILES\VA-02-0169.CNF Spectrum Number VA020169.CNF Sample Description O/S Sub-Surface 6-12"#27 Sample Type Soil Peak Locate Performed on 12/8/02 7:19:32 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 951.34 0. 1929 238.05 6.42 1.2464 2 1177.78 0.2488 294.64 3.63 1. 1977 3 1405.22 0.2295 351.36 3.88 1. 4153 4 2329.07 0.2167 582.34 4.76 1. 1447 5 2432.81 0.1939 608.21 4.35 1.6597 6 5838.11 0. 1316 1459.20 8.16 2. 1509 Errors quoted at 1. 96 sigma

I9 Peak Analysis Report 12/8/02 7:19:33 AM PageMts

- - - - P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0169.CNF Spectrum Number VA020169.CNF Sample Description O/S Sub-Surface 6-12"#27 Peak Analysis Performed on 12/8/02 7:19:33 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 957 951.38 238.05 1. 41E+002 24.63 4.23E+001 F 2 1170- 1185 1177.83 294.64 4.29E+001 14.58 2.52E+001 F 3 1398- 1413 1404. 84 351.36 5. 87E+001 16.41 2.36E+001 F 4 2322- 2335 2329.18 582.34 3.4 6E+001 12.79 9.19E+000 F 5 2424- 2441 2432.70 608.21 6. 41E+001 16.47 1.36E+001 F 6 5827- 5850 5838.30 1459.20 1. 68E+002 25.28 3.72E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/8/02 7:19:33 AM Page 4P317

- - - - N U C L I D E I D E N T I F I C A T IO N R E PO R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0169.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

....................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.902 1460.81* 10.67 2.589E-005 4.224E-006 TL-208 0.421 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 3.142E-007 1.183E-007 763.13 1.64 860.37 12.46 PB-212 0.306 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1.264E-006 2.413E-007 300.09 3.41 BI-214 0.247 609.31* 46.30 1.096E-006 2.949E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80 PB-214 0.454 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.029E-006 3.597E-007 351.92* 37.20 8.218E-007 2.390E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/8/02 7:19:33 AM Page --

318 P *** I N T E R F E R E N C E C O R R E C T E D R E PO R T Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0169.CNF Spectrum Number VA020169.CNF Performed & Reviewed By _ _ _ __ ADate / /& -

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.902 2.59E-005 4.22E-006 16.3 TL-208 @ 0.421 3. 14E-007 1.18E-007 37.6 PB-212 0.306 1.26E-006 2. 41E-007 19.1 BI-214 0.247 1.1OE-006 2.95E-007 26.9 PB-214 @ 0.454 8. 85E-007 1.99E-007 22.5

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I.F I E D P E A K S

-Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted'at 1.96 sigma.

P319

- - - G A MM A S PE CT R UM A NA L YSI S***

Report Generated On 12/8/02 7:01:41 AM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0170.CNF Spectrum Number VA020170.CNF Sample Description O/S Surface 0-6"#28 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.488E+002 g Sample Collection Date 11/21/02 10:40:00 AM Spectrum Collection Date 12/7/02 7:35:28 PM Decay Corrected To 11/21/02 10:40:00 AM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By /sr Z.

i.dl Date b1-/ />/ @

Supervisory Review Superviso y ReviewDate Date /R~ t/ &

e

Peak Locate Analysis Report 12/8/02 7:01:41 AM Page 2P320 P E A K L O C A T E R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0170.CNF Spectrum Number VA020170.CNF Sample Description O/S Surface 0-6"#28 Sample Type Soil Peak Locate Performed on 12/8/02 7:01:40 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance X(keV) 1 951.41 0.2156 238.04 5.23 1.4541 2 1178.11 0.2377 294.73 4 . 00 1.1902 3 1404.40 0.2152 351.37 4.32 1. 5642 4 2328.08 0. 2377 582.12 3.70 1. 1511 5 3638.26 0.2187 909.49 3.81 1.3148 6 5838.28 0. 1334 1459.17 7.78 2.1830 Errors quoted at 1.96 sigma

Peak Analysis Report 12/8/02 7:01:41 AM. Pagep3 2h

"-~ ***** P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0170.CNF Spectrum Number VA020170.CNF Sample Description O/S Surface 0-6"#28 Peak Analysis Performed on 12/8/02 7:01:40 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 943- 959 951.33 238.04 1.29E+002 23.22 5.25E+001 F 2 1174- 1183 1178.19 294.73 4. 54E+001 15.18 1.31E+001 F 3 1397- 1414 1404.86 351.37 8.43E+001 17.60 1. 12E+001 F 4 2323- 2334 2328.29 582.12 2. 94E+001 12.16 9.7 6E+000 F 5 3632- 3645 3638. 39 909.49 2. 39E+001 11.17 8.13E+000 F 6 5827- 5850 5838.16 1459.17 1. 60E+002 24.48 0.OOE+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at i.96 sigma

Interference Corrected Activity Report 12/8/02 7:01:41 AM Page 4P322

- - - - N U C L I D E I D E N T I F I C A T IO N R E PO R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0170.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.898 1460.81* 10.67 2.700E-005 4.454E-006 TL-208 0.410 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 2. 911E-007 1.221E-007 763.13 1.64 860.37 12.46 PB-212 0.306 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1.266E-006 2.470E-007 300.09 .3.41 PB-214 0.455 53.23 @ 1.11 74.81 6.21 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1. 186E-006 4.090E-007 351.92* 37.20 1.287E-006 2.878E-007

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/8/02 7:01:41 AM Page 'P323

@

I NT ER FE R EN CE COR R EC T ED R E POR T **

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0170.CNF Spectrum Number VAy0170.CNF Performed & Reviewed By / X * , -, , Date ___/-/ 6-1.

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.898 2.70E-005 4.45E-006 16.5 TL-208 @ 0.410 2. 91E-007 1.22E-007 41.9 PB-212 0.306 1.27E-006 2. 47E-007 19.5 PB-214 @ 0.455 1.25E-006 2. 35E-007 18.8

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 5 909.49 3.9782E-002 46.79 P _ 0 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P324

- - G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/8/02 7:16:10 AM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0171.CNF Spectrum Number VA020171.CNF Sample Description 0/S Sub-Surface 6-12"#28 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.512E+002 g Sample Collection Date 11/21/02 10:40:00 AM Spectrum Collection Date 12/8/02 6:59:25 AM Decay Corrected To 11/21/02 10:40:00 AM Collected By L. Finn Live Time 600.6 seconds vj Real Time 600.9 seconds

-%Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By X. X- r'For Date /a/ AL / &-;

Supervisory Review /-fall

"' (9 Date Aft 6/_°--

Peak Locate Analysis Report 12/8/02 7:16:10 AM Page 2P325 P E A K L 0 C A T E R E PO R T i-************************************ **************************************

Detector DETOI Sample I.D. C:\ .GENIE2K\CAMFILES\VA-02-01711.CNF Spectrum Number VA020171.CNF Sample Description O/S Sub-Surface 6-12"#28 Sample Type Soil Peak Locate Performed on 12/8/02 7:16:09 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.92 0.2216 238. 66 3.72 1. 5039 2 1407.23 0.2261 352.00 4.16 1.5313 3 2333.48 0.2140 583.40 4.01 1. 6296 4 2437.18 0.2121 609.31 4.61 1.0010 5 5849.27 0. 1330 1461.93 7.98 2.1665 Errors quoted at 1.96 sigma

Peak Analysis Report 12/8/02 7:16:10 AM PageP326 P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0171.CNF Spectrum Number VA020171.CNF Sample Description O/S Sub-Surface 6-12"r#28 Peak Analysis Performed on 12 /8/02 7:16:09 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 946- 963 953.80 238. 66- 1. l1E+002 21.91 5.44E+001 F 2 1399- 1415 1407.41 352. 00 7. 42E+001 17.33 2. 12E+001 F 3 2326- 2340 2333.41 583.40 4. 88E+001 13.89 6.22E+000 F 4 2431- 2444 2437.12 609.31 3.83E+001 13.40 1.05E+001 F 5 5837- 5861 5849.20 1461.93 1. 60E+002 24.54 2. 02E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

InterferenceCorrected Activity Report 12/8/02 7:16:10 AM Page 4P327

- - - - N U.C L I D E I D E N T I F I C A T IO N R E PO R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0171.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.951 1460.81* 10.67 2.666E-005 4.420E-006 TL-208 0.436 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 4.788E-007 1.404E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18. 00 87.30 8.00

- 238.63* 44. 60 1.081E-006 2.28OE-007 300.09 3.41 BI-214 0.269 609.31* 46.30 7.077E-007 2.539E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 1218102 7:16:10 AM Page 5P328

I N T E R F E R E N C E C O R R E C T E D R E P O R T Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0171.CNF Spectrum Number VA0 .CNF Performed & Reviewed By )), Date f.Z/ / 49Q P-Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.951 2. 67E-005 4.42E-006 16.6 TL-208 @ 0.436 4. 79E-007 1.40E-007 29.3 PB-212 0.313 1. 08E-006 2.28E-007 21.1 BI-214 0.269 7. 08E-007 2. 54E-007 35.9

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 352.00 1.2359E-001 23.35 - '

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

-.411

~: . g-P329 G A M M A S P E C T R U M A N A L Y S I S Report Generated On 12/8/02 7:37:34 AM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0172.CNF Spectrum Number VA020172.CNF Sample Description O/S Surface 0-6"#29 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2. 00 keV Sample Size 2.565E+002 g Sample Collection Date 11/21/02 12:45:00 PM Spectrum Collection Date 12/8/02 7:15:46 AM Decay Corrected To 11/21/02 12:45:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds S- % Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 t(

Performed & Reviewed By Date /Z / ece/OZ-1/41-1(// 0 ,

Supervisory Review Date 2?/ & / d7 f

Peak Locate Analysis Report 12/8/02 7:37:34 AM Page 2 P330 P E A K L O C A T E R E PO R T Detector DET01

( Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0172.CNF Spectrum Number VAO20172.CNF Sample Description O/S Surface 0-6"#29 Sample Type Soil Peak Locate Performed on 12/8/02 7:37:33 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.29 0.2173 238.56 5.51 1.1098 2 1407.00 0.2274 351.83 3.76 1.5610 3 2333.82 0. 2169 583.49 4.05 1. 5111 4 2437.65 0.2217 609.. 42 3.-98 1. 3494 5 3647.87 0.2161 911.85 3.92 1.4179 6 5848.88- 0.1412 1461.96 6.65 2. 2604 Errors quoted at 1.96 sigma

Peak Analysis Report 12/8/02 7:37:34 AM Page p^l

. ~ ***** P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0172.CNF Spectrum Number VA020172.CNF Sample Description O/S Surface 0-6"#29 Peak Analysis Performed on 12/8/02 7:37:33 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 947- 961 953.40 238.56 8.43E+001 20.86 5.73E+001 F 2 1398- 1413 1406.72 351.83 6. 66E+001 16.12 1.46E+001 F 3 2326- 2342 2333.77 583.49 4. 40E+001 13.60 8.21E+000 F 4 2431- 2444 2437.56 609. 42 3. 71E+001 13.26 1. 06E+001 F 5 3641- 3654 3647.87 911.85 2. 76E+001 11.40 5. 86E+000 F 6 5838- 5861 5849.33 1461.96 1. 29E+002 22. 05 0. OOE+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/8/02 7:37:34 AM Page 4 P332 NUCLIDE IDENTIFICATION REPORT *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0172.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.949 1460.81* 10.67 2. 11OE-005 3. 841E-006 TL-208 0.434 84.90 1.52 277.35 6.80 510.84 @ 21.60 583.14* 84.20 4.236E-007 1.342E-007 763.13 1.64 860.37 12.46 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 8.028E-007 2.077E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 6.728E-007 2.461E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Lnterference Corrected Activity Report 12/8 /02 7:37:34 AM Page 5P333

,%M** I N T E R F E R E N C E C OR R E C T E D R E PO R T Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0172.CNF Spectrum Number VA020172.CNF Performed & Reviewed By _

Date 1 / 4fl/OcP_

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.949 2. 11E-005 3. 84E-006 18.2 TL-208 @ 0.434 4.24E-007 1. 34E-007 31.7 PB-212 0.313 8. 03E-007 2.08E-007 25.9 BI-214 0.269 6.73E-007 2. 46E-007 36.6

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.83 1.110OE-001 24.20 ,z

&;7-C F 5 911.85 4.5944E-002 41.34 j5W M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P334

- - - - ***** * **** ****** * ****** *********** **************Y*I** *

- G A M MA S.P E CT RUM A NA LYS I S***

Report Generated On 12/8/02 7:48:32 AM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0173.CNF Spectrum Number VA020173.CNF Sample Description O/S Sub-Surface 6-12"#29

.Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak AreaRange (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size. 2.735E+002 g Sample Collection Date - 11/21/02 12:45:00 PM Spectrum Collection Date 12/8/02 7:35:39 AM Decay Corrected To 11/21/02 12:45:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Date fi/ eV /a.2Z Supervisory Review - Q, Date /-I / /& / 09-

I Peak Locate Analysis Report 12/8/02 7:48:32 AM Page 2 P335 P E A K L OC A T E R E PO R T Detector DET01 Sample I.D. C:'\GENIE2K\CAMFILES\VA-02-0173.CNF Spectrum Number VA020173. CNF Sample Description O/S Sub-Surface 6-12"#29 Sample Type Soil Peak Locate Performed on 12/8/02 7:48:30 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.58 0. 2268 238.40 .4.71 1.4632 2 1406.29 0. 2378 351.93 3.74 1.7508 3 2438.82 0. 2139 609.67 4.34 1. 4726 4 5850.93 0. 1446 1462.17 6.13 2.4751 Errors quoted at 1.96 sigma

Peak Analysis Report 12/8/02 7:48:32 AM Page p 36 P E A K A N A L Y S I S R E PO R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0173.CNF Spectrum Number VA020173.CNF Sample Description O/S Sub-Surface 6-12"#29 Peak Analysis Performed on 12/8/02 7:48:31 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 943- 960 952.78 238.40 1.03E+002 22.18 6.34E+001 F 2 1398- 1415 1407.12 351.93 7.14E+001 16.78 2.10E+001 F 3 2431- 2447 2438.56 609. 67 4.23E+001 13.59 8.50E+000 F 4 5838- 5861 5850.18 1462. 17 1. 36E+002 22.69 3.97E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/8/02 7:48:32 AM Page 4 P337 N U C L I D E I D E N T I F I C A T IO N R E P O RT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0173.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activityr Activity Name Cc>nfidence (keV) (%) (uCi/g ) Uncertainty K-40 0.929 1460.81* 10.67 2.093E-005I 3.718E-006 PB-212 0.312 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 9.218E-007 2.099E-007 300.09 3.41 BI-214 0.267 609.31* 46.30 7.197E-007 2.380E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma II,

Ihterference Corrected Activity Report 12/8/02 7:48:32 AM Page 5 P338

! ** I N T E RFE RE N CE CO RR EC T ED R EP OR T **

-Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0173.CNF Spectrum Number VA020173.CNF Performed & Reviewed By _

Date _Z_/OZ /O7 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.929 2.09E-005 3.72E-006 17. 8 PB-212 0.312 9.22E-007 2.10E-007 22.8 BI-214 0.267 7.20E-007 2.38E-007 33.1

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S **

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.93 1.1899E-001 23.51 Pb '4 g M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

.4P339

- - - - A***********

***G A MM A S PE CT R UM A NA LY SI S***

Report Generated On 12/8/02 7_59:36 AM Detector DET01 Sample I.D. C:\GE NIE2K\CAMFILES\VA-02-0174.CNF Spectrum Number VA020174.CNF Sample Description 0/S Surface 0-6"1 #30 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.621E+002 g Sample Collection Date 11/21/02 1:00:00 PM Spectrum Collection Date 12/8/02 7:47:01 AM Decay Corrected To 11/21/02 1:00:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By AJ..M Date I.Z/o6'/o02/

Supervisory Review a Date /R//It / 6,;-

Peak Locate Analysis Report 12/8/02 7:89:36 AM Page 2 P340 P E A K L O C A T E R E P-O R T Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0174.CNF Spectrum Number VA020174.CNF -

Sample Description O/S Surface 0-6" #30 Sample Type Soil Peak Locate Performed on 12/8/02 7:59:35 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.06 0. 2199 238.48 4. 11 1. 37 97 2 1406.04 0. 2527 351.68 3.76 0. 3779 3 2437.58 0.1993 609.41 5.30 1.1290 4 5849.84 0.1397 1462.03 7.03 2. 1723 Errors quoted at 1. 96 sigma

Peak Analysis Report 12/8/02 7:59:36 AM Page p 'k P E A K A N A L Y S I S .

R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0174.CNF Spectrum Number VA020174.CNF Sample Description O/S Surface 0-6" #30 Peak Analysis Performed on 12/8/02 7:59:35 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 959 953.09 238.48 1. 08E+002 21.97 4.65E+001 F 2 1402- 1414 1406.12 351.68 2.88E+001 11.59 1.54E+001 F 3 2431- 2444 2437.53 609.41 4.50E+001 14.58 1 29E+001 F 4 5839- 5861 5849.63 1462.03 1.29E+002 22.18 2.06E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/8/02 7:59:36 AM Page 4 P342 N U C L I D E I D E N T I F I C A T IO N R EPORT *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0174.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activityr Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.942, 1460.81* 10.67 2 2.073E-005I 3.779E-006 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1 .002E-006 2.183E-007 300.09 3.41 BI-214 0.269 609.31* 46.30 7 .982E-007 2.663E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4. 11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/8/02 7:59:36 AM Page 5 P343

, *** I N T E R F E R E N C E - C O R R E C T E D R E PO R T Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0174.CNF Spectrum Number VA020174.CNF Performed & Reviewed By _f Date 1; /°'_ /eA2 Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.942 2.07E-005 3.78E-006 18.2 PB-212 0.313 1.00E-006 2.18E-007 21.8 BI-214 0.269 7.98E-007 2. 66E-007 33.4

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.68 4.7972E-002 40.26 P -AJ4I &Zt M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P344

- - - - A**L**************************** *******************

- - G A M MA S PE CT R UM A NA LYS I S***

Report Generated On 12/8/02 8:13:58 AM Detector DET01 Sample I.D. C:\GEIgIE2K\CAMFILES\VA-02-0175.CNF Spectrum Number VA020175.CNF Sample Description O/S Sub-Surface 6-12" #30 Sample Type Soil Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in channels) 100 - 8192 Peak Area Range (in channels) 100 - 8192 Identification Energy Tolerance 2.00 keV Sample Size 2.745E+002 g Sample Collection Date 11/21/02 1:00:00 PM Spectrum Collection Date 12/8/02 7:58:34 AM Decay Corrected To 11/21/02 1:00:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds

% Dead Time 0.03 %

Background Type STEP Energy Calibration. Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By Re- -,'Z-, Date / //0'/6?

Supervisory Review /.__:: 7 Date 1ct//6/0-

Peak Locate Analysis Report 12/8/02 8:13:58 AM Page 2 P345 P E A K L O C A T E R E P O R T Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0175.CNF Spectrum Number VA020175.CNF Sample Description O/S Sub-Surface 6-12" #30 Sample Type Soil Peak Locate Performed on 12/8/02 8:13:57 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 953.65 0. 2223 238.56 4.74 1. 5032 2 2438.01 0. 1997 609.54 4.85 1. 5185 3 5849.72 0. 1462 1462.01 5.80 2.5241 Errors quoted at 1. 96 sigma

'Peak Analysis Report 12/8/02 8:13:58 AM Page PA36

`6 ***** P E A K A N A L Y S I S R E P O R T Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0175.CNF Spectrum Number VA020175.CNF Sample Description O/S Sub-Surface 6-12" #30 Peak Analysis Performed on 12/8/02 8:13:57 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 945- 960 953.40 238.56 1.26E+002 23.60 6.12E+001 F 2 2431- 2446 2438.02 609.54 5.55E+001 15.13 8.00E+000 F 3 5838- 5861 5849.54 1462.01 1.36E+002 22.41 1.91E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1. 96 sigma

Interference Corrected Activity Report 12/8/02 8:13:58 AM Page 4 p347

- - - N U C L I D E I D E N T I F I C A T IO N R EPORT Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0175.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES .....................

Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.944 1460.81* 10.67 2.085E-005 3.665E-006 PB-212 0.313 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 1.118E-006 2.264E-007 300.09 3.41 BI-214 -.0.268 609.31* 46.30 9.393E-007 2.669E-007 768.36 5.04 806.17 1.23 934.06 3.21 1120.29 15.10 1155.19 1.70 1238.11 5.94 1377.67 4.11 1764.49 15.80

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/8/02 8:13:58 AM Page 5 P348 I *** I N T E R F E R E N C E C O R R E C T E D R E PO R T Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0175.CNF Spectrum Number VA020175.CNF 1

Performed & Reviewed By cxQ, Xej Date __k/ O/ O?

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g Uncertainty % Uncertainty K-40 0.944 2.09E-005 3.67E-006 17.6 PB-212 0.313 1. 12E-006 2.26E-007 20.2 BI-214 0.268 9.39E-007 2. 67E-007 28.4

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors quoted at 1.96 sigma U N I D E N T I F I E D P E A K S Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty All peaks were identified.

M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

P349

- - G A M M A S P E C T R U M A N A L Y S I S jl****************************

Report Generated On 12/8/02 9:16:52 AM Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0181.CNF Spectrum Number VA020181.CNF Sample Description Pkg.N0002 (Roof Pepples)

Sample Type Pebbles Sample Geometry 2 Peak Locate Threshold 3.50 Peak Locate Range (in chan nels) 100 - 8192 Peak Area Range (in channe ls) 100 - 8192 Identification Energy Tole rance 2.00 keV Sample Size 4.307E+002 g Sample Collection Date 12/6/02 3:00:00 PM Spectrum Collection Date 12/8/02 '8:47:15 AM Decay Corrected To 12/6/02 3:00:00 PM Collected By L. Finn Live Time 600.0 seconds Real Time 600.2 seconds Dead Time 0.04 %

XBackground Type STEP Energy Calibration Performed On 11/13/02 Efficiency Calibration Performed On 11/13/02 Calibration Geometry Used 2 Performed & Reviewed By t. Date lv~ OR'/

Supervisory Review Sue v s ryR v e Da e Date -ZL-//6 A / 6 / O;1 O

Peak Locate Analysis Report 12/8/02 9:16:52 AM Page 2 P350 P E A K L O C A T E R E PO R T 11i4 ******************* I Detector DET01 Sample I.D. C: \GENIE2K\CAMFILES\VA-02-0181.CNF Spectrum Number VA020181.CNF Sample Description Pkg.N0002 (Roof Pepples)

Sample Type Pebbles Peak Locate Performed on 12/8/02 9:16:51 AM Peak Locate From Channel 100 Peak Locate To Channel 8192 Peak Search Sensitivity 3.50 MDA Confidence 5.00 Peak Centroid Centroid Energy Peak FWHM No. Channel Uncertainty (keV) Significance (keV) 1 950.62 0. 2327 237.89 4.28 1. 4266 2 1404.73 0. 2363 351.29 3.55 1. 5703 3 5839.19 0. 1190 1459.38 9.28 2.2552 Errors quoted at 1.96 sigma

,Peak Analysis Report 12/8/02 9:16:52 AM PageP351 P E A K A N A L Y S I S R E PO R T

.w, *************************************************************************

Detector DET01 Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0181.CNF Spectrum Number VA020181.CNF Sample Description Pkg.N0002 (Roof Pepples)

Peak Analysis Performed on 12/8/02 9:16:51 AM Peak Analysis From Channel 100 Peak Analysis To Channel 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area Uncert. Counts F 1 942- 960 950.71 237.89 9.92E+001 21.28 6.56E+001 F 2 1396- 1414 1404.54 351.29 6.07E+001 16.17 2.50E+001 F 3 5826- 5852 5839.03 1459.38 2. 69E+002 31.87 8. 55E+000 M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

Interference Corrected Activity Report 12/8/02 9:16:52 AM Page P352

- - - - N U C L I D E I D E N T I F I C A T IO N R E PO R T *****

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0181.CNF Nuclide Library Used C:\GENIE2K\CAMFILES\MYAP.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield ActivityI Activity Name Confidence (keV) (%) (uCi/g ) Uncertainty K-40 0.922 1460.81* 10.67 2.617E-005 3.504E-006 PB-212 0.302 74.82 10.70 77.11 18.00 87.30 8.00 238.63* 44.60 5.613E-007 1.277E-007 300.09 3.41

= Energy line found in the spectrum.

@ = Energy line not used for Weighted Mean Activity Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.10 Errors quoted at 1.960 sigma

Interference Corrected Activity Report 12/8/02 9:16:52 AM Page T353

- - : I N T E R F E R E N C E C O R R E C T E D R E P O R T

)*

Sample I.D. C:\GENIE2K\CAMFILES\VA-02-0181.CNF Spectrum Number VA020181.CNF 11 Performed & Reviewed By Xg .1 Date _

Nuclide Wt mean Wt mean Wt mean Nuclide Id Activity Activity Activity Name Confidence (uCi/g ) Uncertainty % Uncertainty K-40 0.922 2. 62E-005 3. 50E-006 13.4 PB-212 0.302 5.61E-007 1.28E-007 22.8

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis

@ = nuclide contains energy lines not used in Weighted Mean Activity Errors-quoted at 1.96 sigma U N I D E N T I F I E D P E A K S

Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second % Uncertainty F 2 351.29 1.0119E-001 26.64 ?b- x Ko M = First peak in a multiplet region m = Other peak in a multiplet region F = Fitted singlet Errors quoted at 1.96 sigma

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