RA-05-027, Response to NRC RAI on FSS Final Report No. 7

Response to NRC RAI on FSS Final Report No. 7

ML051440545
Person / Time
Site:	Maine Yankee
Issue date:	05/16/2005
From:	Meisner M Maine Yankee Atomic Power Co
To:	Document Control Desk, NRC/FSME
References
MN-05-024, RA-05-027
Download: ML051440545 (110)

Text

Maine Yankee 321 OLD FERRY RD.

• WISCASSET, ME 04578-4922 May 16, 2005 MN-05-024 RA-05-027 Proposed Change No. 218, Supplement 23 UNITED STATES NUCLEAR REGULATORY COMMISSION Attention: Document Control Desk Washington, DC 20555

References:

(1) License No. DPR-36 (Docket No. 50-309)

(2) Maine Yankee Letter to USNRC, MN-04-020, dated March 15, 2004, License Amendment Request: Release of Non-ISFSI Site Land, Proposed Change No. 218 (3) Maine Yankee Letter to USNRC, MN-05-001, dated January 20, 2005, Release of Non-ISFSI Site Land - FSS Final Report No. 7 (4) USNRC Letter to Maine Yankee, dated April 15, 2005 Request for Additional Information (RAI) Regarding Final Status Survey (FSS)

Supplement No. 7.

Subject:

Response to NRC RAI on FSS Final Report No. 7 On March 15, 2004, Maine Yankee submitted a request for amendment (Reference No. 2) to the facility operating license (Reference No. 1) pursuant to 10 CFR 50.90 and in accordance with the NRC Approved License Termination Plan (LTP) for Maine Yankee, to indicate NRC's approval of the release of the Non-ISFSI site land from the jurisdiction of the license. In support of that request, Maine Yankee supplied the information required in LTP section 1.4.2 and 5.9.3. The land area associated with the license amendment request included the entire non-ISFSI portion of the site land. The dismantlement and survey information for the survey units is being submitted to the NRC in FSS Final Reports.

In Reference No. 3, Maine Yankee submitted FSS Final Report No. 7. In Reference No. 4, USNRC requested additional information on technical information submitted in FSS Final Report No 7. This additional information is provided in an attachment to this letter.

If you have any stions, please contact me.

ichael . Meisner sident & Chief Nuclear Officer

UNITED STATES NUCLEAR REGULATORY COMMISSION Attention: Document Control Desk Page 2 of 2

Attachment:

Maine Yankee Response to NRC Request for Additional Information (RAI)

Regarding Final Status Survey (FSS) Final Report No. 7 cc: Dr. R. R. Bellamy, NRC Region I Mr. D. R. Lewis, Esq., Shaw Pittman Mr. C. Pray, State of Maine, Nuclear Safety Advisor Mr. P. J. Dostie, State of Maine, Division of Health Engineering Mr. D. Gillen, NRC Acting Director, Division of Waste Management Mr. M. Rosenstein, USEPA Region I Mr. S. J. Collins, NRC Regional Administrator, Region I Mr. J. Buckley, NRC NMSS Project Manager, Decommissioning Mr. M. Roberts, NRC Region I Mr. R. Shadis, Friends of the Coast

ATTACHMENT Maine Yankee Response to NRC Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Final Report No. 7 NRC RAI No. 1- FR-0111 SU 7 Section D describes an elevated area, identified by the State ofMaine lvhich necessitatedMaine Yankee to remove an additional1 to 2 feet of soil. During FSS the ISOCS had been used to scan survey the area, and the activity'was determined to be 0.73 pCi/g Cs-137 (belowv the scan investigation level.) As a result of the State of Mainefinding, an investigation wvas conducted As a result of the investigation, elevatedreadingswere found in an adjacent areausing a SPA-3 detector. The areawas sampled in additionaldirectionsand depths. One samplefrom a "likely depth of 18-24 in. " had a Cs-137 specific activity of 5.86 pCi/g, which is "above the DCGL, but beloir the DCGLFAI " In Table 2-2, the scan MDCfor the ISOCS is listed as 0. 12 - 0.5 pCi/g.

Since the ISOCS originallydeterminedthe activityfor this grid/areaas 0. 73 pCi/g, the staff has the following comment:

On page 12, ofMaine Yankee EngineeringCalculation EC-003-04, Revision 1, datedNovember 11, 2004, it states "conservatively posited that all the activity in an ISOC scan geometry of3m 2 is located in a 1-M2 circularvolume of 15 cm depth locatedjust inside the 3m radiusof the detector 'sfield ofview." Since the elevatedsample wasfrom a soil depth of 18-24 inches, the staff questions the use of the ISOCSfor determining the depth of soil to be remediated Please justify the use of the ISOCSfor determiningthe activity in soil at depths greaterthan 15 cm.

Also, pleaseprovide the procedurefor performing the surveys that determine the depth of soil to be remediated Maine Yankee Response:

There were two elevated areas identified by the State of Maine. The first area was identified during-the remediation phase before the survey unit was turned over for FSS. This location resulted in the identification and removal of storm drain piping. Upon further review, Maine Yankee decided to remove an additional 1 to 2 feet of soil from most of the survey unit, as part of the remediation phase. This 1 to 2 feet of soil removal was not necessitated by the State of Maine identified location, but rather Maine Yankee judgement. The second area was located on the other side of the survey unit and was identified during the FSS phase. The ISOCS gamma scan survey result for this area was 0.73 pCi/g Cs-137. This location was subjected to an investigation. This investigation identified elevated activity in such a small areal extent that it was remediated by virtue of the sampling actions. This activity would have met the release criteria.

ISOCS is certainly appropriate for determining contamination at depth up to the limit at which the photons can penetrate the soil and still reach the detector. The depth of soil typically provided in the circular plane geometry is 15 cm. This depth is acceptable based on the remediation protocol which has the area remediated and sampled until the soil activity is less than the DCGL and samples taken at progressively deeper locations are the same or lower than the surface activity (see attached Appendix A - Soil Remediation Protocol). Furthermore, remediated soil is surveyed by ISOCS using the same evaluation criteria as FSS but using a detector distance of 2 m rather than 3 m.

Page 1

ATTACHMENT Maine Yankee Response to NRC Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Final Report No. 7 Three geoprobe soil samples were taken in the area in question (the second location described above) during site characterization. The geoprobe samples indicated Cs-137 activity at depths not exceeding approximately 24". The FSS investigation instructions required taking two samples at each of 5 locations, one set at the site of investigation, and 4 sets at 90 degree angles from the center location in order to bound the elevated reading. One sample in each set was to be collected at 0-15 cm depth and the second sample was to be collected at 30-45 cm depth. During the investigation.process, the technicians typically used a 2x2 Nal detector to verify the location of the elevated area and to check that the activity at the bottom of the remediated hole has decreased. This process was followed in SU-7. Once the investigation samples had been collected, the area was scanned and a slightly elevated area was found next to (within 12" of) the center sample location. Soil was removed from the location for disposal until the detector indicated no additional activity. A sample of the soil removed was counted and the activity was 5.86 pCi/g. Because the soil was from nearly the same location as the center sample and it was the highest activity collected, it was conservatively used to represent the center location. The technicians recorded its approximate depth as 18" - 24". SU-7 contained gravel fill over a deep layer of clay. Based on the characterization data which did not indicate soil contamination below 24" and the experience of the remediation personnel that the clay layer was the lower boundary of soil activity, no additional sampling was performed.

Even though the elevated area was removed, the sample result from the removed soil was included in the EMC unity rule calculation in Table 3-1 "Investigation Table" as though it had been left. The area applied to this elevated result was conservatively set at 2 m2 , even though the actual area was only a fraction of this area. If this elevated activity had not been identified and removed, the survey unit would still have met the release criteria.

NRC RAI No. 2- FR-0111 SU 9 Section C, states that, "the ISOCS is reconfiguredand re-evaluatedto accountfor the appropriateshielding effects of vater and metal." Pleaseprovide the technical bases and justificationfor the changes to the MDC and other survey parameters.

Maine Yankee Response:

The Form 3 evaluation for the presence of pipe and free-standing water in FROI 11 SU-9 is attached (Appendix B). The spectra for the applicable scan grids were re-analyzed and the resulting MDC's determined to ensure they were less than the investigation levels of 0.36 pCi/g Co-60 and 1.0 pCi/g Cs-137. The following is a table of the resulting MDC for each applicable scan grid.

Geometry Sean MDC MDC Grid pCilg Co-60 pCi/g Cs-137 Metal Pipe S048 0.199 0.337 S049 0.199 0.313 Page 2

ATTACHMENT Maine Yankee Response to NRC Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Final Report No. 7 Geometry Scan MDC MDC Grid pCi/g Co-60 pCi/g Cs-137 S050 0.171 0.305 S051 0.197 0.311 Water S004 0.295 0.351 S073 0.296 0.533 S074 0.290 0.573 S078 0.273 0.245 S079 0.275 0.254 S080 0.257 0.493 5081 0.146 0.135 S083 0.283 0.638 S085 0.298 0.592 NRC RAI No. 3 - All Supplement 7 SUs Table 2-2 provides scan MDC ranges. Forexample, in SU-J0, the ISOCS scan MDC is listedas 0.3 to 0.9 pCi/g with the comment that this is -50% ofthe DCGL. However, 0, 90 pCi/g exceeds the DCGLfor Co-60 of 0.86 pCi/g. Pleaseclarify the ISOCSscanMDCsfor each of the survey units.

Maine Yankee Response:

The MDC values for ISOCS scans reported in Table 2-2 range from the lowest to the highest ISOCS MDC's achieved for that survey unit. In many cases, these ranges were nominal ranges which simply bounded the ISOCS MDC's. The following table shows the maximum nuclide-specific MDCs by survey unit, for those survey units which do not already contain nuclide specific ISOCS MDA ranges in Table 2-2. In the future, Table 2-2 will clearly show which MDC applies to Co-60 and which applies to Cs-137 for the final data set.

Page 3

ATTACHMENT Maine Yankee Response to NRC Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Final Report No. 7 ISOCS MDCs (values in pCi/g)

Survey Unit RR-Tbl 2-2 lCo-60 (max) Cs-137 (max)

FSS Final Report No. 6 FROIll SU-1 0.2-0.5 0.274 0.415 SU-1 0.2 - 0.5 0.0987 0.158 SU-3 0.25 - 0.8 (soil, etc) 0.326 0.397 0.4 - 0.8 (pipe) 0.413 0.786 SU-4 0.09 - 0.9 0.214 0.334 0.404 trench 0.803 trench SU-5 0.1 - 0.4 0.287 0.402 FSS Final Report No. 7 FROlIl SU-6 0.11 -0.40 0.230 0.352 SU-7 0.12 - 0.50 0.255 0.415 SU-8 0.10 - 0.70 0.338 0.672 SU-9 0.15 - 0.70 0.298 0.638 SU-10 0.13 - 0.90 0.358 0.866 SU-13 0.14-0.30 0.218 0.278 FSS Final Report No. 8 FRO100 SU-1 0.14 - 0.75 0.357 0.744 SU-2 0.14 - 0.30 0.255 0.386 SU-3 0.14 - 0.33 0.220 0.331 FROl 11 SU-14 0.08 - 0.26 Co-60 Nuclide Specific MDA ranges 0.14 - 0.40 Cs-137 provided in Table 2-2 FRO900 SU-1 0.23 - 0.31 Co-60 Nuclide Specific MDA ranges 0.25 - 0.53 Cs-137 provided in Table 2-2 SU-3 0.15 - 0.24 Co-60 Nuclide Specific MDA ranges 0.14 - 0.42 Cs-137 provided in Table 2-2 FR2900 SU-1 0.11 - 0.45 0.236 0.404 FSS Final Report No. 9 FRO11 SU-11 0.10 - 0.25 Co-60 Nuclide Specific MDA ranges 0.14 - 0.43 Cs-137 provided in Table 2-2 SU-12 0.0135 - 0.533 0.291 0.434 SU-17 0.090 - 0.454 0.261 0.454 FRO200 SU-3 0.10-0.34 0.219 10.344 FSS Final Report No. 9A FRO111 SU-15 0.091-0.246 Co-60 Nuclide Specific MDA ranges 0.157-0.333 Cs-137 provided in Table 2-2 SU-16 0.102-0.299 Co-60 Nuclide Specific MDA ranges 0.152-0.484 Cs-137 provided in Table 2-2 Page 4

ATTACHMENT Maine Yankee Response to NRC Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Final Report No. 7 References

1. Maine Yankee Letter to USNRC, MN-02-048, dated October 15, 2002, Revision 3, Maine Yankee's License Termination Plan

2. USNRC Letter to Maine Yankee dated February 28, 2003, "Issuance of Amendment No.

168 to Facility Operating License No. DPR Maine Yankee Atomic Power Station -

Approval of the MY License Termination Plan

3. Maine Yankee Letter to USNRC, MN-04-020, dated March 15, 2004, License Amendment Request: Release of Non-ISFSI Site Land, Proposed Change No. 218

4. USNRC Memorandum from John T. Buckley to Claudia M. Craig dated March 23, 2004, Meeting Report for the March 17, 2004, Meeting with Maine Yankee Atomic Power Company (Maine Yankee)

5. USNRC Memorandum from John Buckley to Biweekly Notice Coordinator dated May 5, 2004, Request for Publication in Biweekly FR Notice - Notice of Consideration of Issuance of Amendment to Facility Operating License DPR-26, Proposed No Significant Hazards Consideration Determination, and Opportunity for Hearing (TAC No. L52090)

6. Maine Yankee Letter to USNRC, MN-04-03 1, dated May 6, 2004, Release of Non-ISFSI Site Land - FSS Final Report No. IA, Proposed Change No. 218, Supplement 1

7. Federal Register Biweekly Notice: Applications and Amendments to Facility Operating Licenses Involving No Significant Hazards Consideration - Maine Yankee, 69FR29768, dated May 11, 2004

8. Maine Yankee Letter to USNRC, MN-04-042, dated July 6, 2Maine Yankee License Amendment Request - Release of Non-ISFSI Site Lands

9. USNRC Letter to State of Maine dated July 30, 2004, Response to State of Maine Comments on Maine Yankee License Amendment Request - Release of Non-ISFSI Site Lands

10. Maine Yankee Letter to USNRC, MN-04-044, dated August 12, 2004, Release of Non-ISFSI Site Land - Resubmittal of FSS Final Report No. 1, Proposed Change No. 218, Supplement 2

11. USNRC Letter to Maine Yankee dated August 18, 2004, Integrated Inspection No.

05000309/2004001

12. USNRC Letter to Maine Yankee dated August 18, 2004, Changes to the Maine Yankee Atomic Power Station License Termination Plan Using the 50.59 Process

13. Maine Yankee Letter to USNRC, MN-04-047, dated September 2, 2004, License Amendment Request - Release of Non-ISFSI Site Land, Proposed Change No. 218, Supplement 3

14. Maine Yankee Letter to USNRC, MN-04-048, dated September 7, 2004, Reply to NRC Letters Re: Changes to Maine Yankee LTP Using 50.59 Process

15. USNRC Letter to Maine Yankee dated October 14, 2004, Meeting Report for the September 9, 2004, Meeting with Maine Yankee Atomic Power Company (Maine Yankee)

Page 5

ATTACHMENT Maine Yankee Response to NRC Request O~r Additional Information (RAI) Regarding Final Status Survey (FSS) Final Report No. 7

16. Maine Yankee Letter to USNRC, MN-04-049, dated September 15, 2004, Release of Non-ISFSI Site Land - FSS Final Report No.2, Proposed Change No. 218, Supplement 4

17. USNRC Letter to Maine Yankee dated September 24,2004, Request for Additional Information Regarding Final Status Survey (FSS) Final Report No. I A.

18. Maine Yankee Letter to USNRC, MN-04-052, dated October 12, 2004, Release of Non-ISFSI Site Land - FSS Final Report No. 3, Proposed Change No. 218, Supplement 5

19. Maine Yankee Letter to USNRC, MN-04-053, dated October 14, 2004, Release of Non-ISFSI Site Land - Addendum to FSS Final Report No. 1, Proposed Change No. 218, Supplement 6

20. USNRC Letter to Maine Yankee dated November 4, 2004, Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Supplement Nos. 1 and 3

21. Maine Yankee Letter to USNRC, MN-04-056, dated November 17, 2004, Release of Non-ISFSI Site Land - FSS Final Report No. 4, Proposed Change No. 218, Supplement 7

22. USNRC Letter to Maine Yankee dated November 17, 2004, Maine Yankee - NRC Inspection Report NO. 05000309/2004001 and NRC Office of Investigations Report No.

1-2004-001

23. USNRC Letter to Maine Yankee dated November 22, 2004, Correction to NRC Letter to Maine Yankee, dated November 17, 2004.

24. USNRC Letter to Maine Yankee dated November 30, 2004, Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Supplement No. 2

25. USNRC Letter to Maine Yankee dated November 30, 2004, Receipt of Final Status Survey (FSS) Supplement No.4.

26. Maine Yankee Letter to USNRC, MN-04-058, dated December 7, 2004, Response to NRC RAI's on FSS Report Nos. 1 and 3, Proposed Change No. 218, Supplement 8

27. Maine Yankee Letter to USNRC, MN-04-059, dated December 7, 2004, Release of Non-ISFSI Site Land - FSS Final Report No.5, Proposed Change No. 218, Supplement 9

28. Maine Yankee Letter to USNRC, MN-04-060, dated December 22, 2004, Release of Non-ISFSI Site Land - FSS Final Report No. 6, Proposed Change No 218, Supplement 10

29. Maine Yankee Letter to USNRC, MN-04-061, dated December 23, 2004, Response to NRC RAI's on FSS Report No. 2, Proposed Change No. 218, Supplement 11

30. USNRC Letter to Maine Yankee dated December 29, 2004, Receipt of Maine Yankee Final Status Survey Report Supplements 5 and 6

31. USNRC Letter to Maine Yankee dated January 5, 2005, Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Supplement No. 4

32. USNRC Letter to Maine Yankee dated January 7, 2005, Receipt of Maine Yankee's Response to Request for Information on Final Status Survey Report Supplements 1 and 3

33. USNRC Letter to Maine Yankee dated January 19, 2005, Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Supplement No. 2

34. Maine Yankee Letter to USNRC, MN-05-001, dated January 20, 2005, Release of Non-ISFSI Site Land - FSS Final Report No. 7, Proposed Change No. 218, Supplement 12

35. Maine Yankee Letter to USNRC, MN-05-002, dated January 26, 2005, Technical Basis Document for NRC Review: Exploranium GR-130 Minimum Detectable Concentration (MDC) of Cs-137 and Co-60 in Surface Soil - 30 Day Notice per LTP Requirement Page 6

ATTACHMENT Maine Yankee Response to NRC Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Final Report No. 7

36. Maine Yankee Letter to the NRC, MN-05-003, dated January 26, 2005, Area Classification Change: Storm Drains (D3500) - Section 7

37. Maine Yankee Letter to USNRC, MN-05-004, dated January 27, 2005, Response to NRC RAI on FSS Report No. 4, Proposed Change No. 218, Supplement 13

38. USNRC Letter to Maine Yankee dated January 27, 2005, Receipt of Maine Yankee Final Report Supplement 7

39. USNRC Letter to Maine Yankee dated February 9, 2005, Response to Area Classification Change: Storm Drains (D3500)

40. Maine Yankee Letter to USNRC, MN-05-006, dated February 16, 2005, Response to NRC RAI's on FSS Final Report Nos. 1 and 2, Proposed Change No. 218, Supplement 14

41. Maine Yankee Letter to USNRC, MN-05-007, dated February 17, 2005, Release of Non-ISFSI Site Land - FSS Final Report No. 8, Proposed Change No. 218, Supplement 15

42. Maine Yankee Letter to USNRC, MN-05-008, dated February 23, 2005, Release of Non-ISFSI Land - FSS Final Report No. 8 - Attachment 1, Figure 1 and 2 and Attachment II Header Page, Proposed Change No. 218, Supplement 16

43. Maine Yankee Letter to USNRC, MN-05-009, dated February 23, 2005, Response to NRC Comments on Maine Yankee Area Classification Change: Storm Drains (D3500) -

Section 7

44. USNRC Letter to Maine Yankee dated February 23, 2005, Receipt of Maine Yankee Responses to Requests for Additional Information Regarding Supplements I and 2 and Final Status Survey Report Supplement 8

45. USNRC Letter to Maine Yankee dated February 24, 2005, Acceptance of Maine Yankee Technical Basis Document for the Limited Use of the Exploranium GR-130 Instrument

46. USNRC Letter to Maine Yankee dated March 2, 2005 ', Approval of Final Status Survey Supplement No. 4

47. USNRC Letter to Maine Yankee dated March 13, 2005, Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Supplement No. 5

48. USNRC Letter to Maine Yankee dated March 21, 2005, Storm Drain Area Survey Unit Classification Change

49. USNRC Letter to Maine Yankee dated March 28, 2005, Review of Maine Yankee Response to NRC RAI"s on FSS Report Nos. 1 and 2

50. Maine Yankee Letter to USNRC, MN-05-015, dated April 7,2005, Response to NRC RAI on FSS Final Report No. 5, Proposed Change No. 218, Supplement 17

51. Maine Yankee Letter to USNRC, MN-05-016, dated April 7, 2005, Release of Non-ISFSI Site Land - FSS Final Report No. 9, Proposed Change No. 218, Supplement 18

52. USNRC Letter to Maine Yankee dated April 7, 2005, Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Supplement No. 6

53. Maine Yankee Letter to USNRC, MN-05-017, dated April 13, 2005, Response to NRC RAI of FSS Final Report Nos. 1 and 2, Proposed Change No. 218, Supplement 19 This letter was erroneously dated "March 2, 2003" and should have been "March 2, 2005" Page 7

ATTACHMENT Maine Yankee Response to NRC Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Final Report No. 7

54. USNRC Letter to Maine Yankee dated April 15, 2005, Request for Additional Information (RAI) Regarding Final Status Survey (FSS) Supplement No. 7

55. USNRC Letter to Maine Yankee dated May 3, 2005, Meeting Report for the April 19, 2005, Meeting with Maine Yankee Atomic Power Company (Maine Yankee)

56. Maine Yankee Letter to USNRC, MN-05-019, dated May 5, 2005, Response to NRC RAI on FSS Final Report No. 6, Proposed Change No. 218, Supplement 20

57. Maine Yankee Letter to USNRC, MN-05-020, dated May 5, 2005, Release of Non-ISFSI Site Land - FSS Final Report No. 9A, Proposed Change No. 218, Supplement 21

58. Maine Yankee Letter to USNRC, MN-05-23, dated May 10, 2005, Release of Non-ISFSI Site Land - FSS Final Report Nos. 1 and 2 - Resolution, Proposed Change No. 218, Supplement 22 Page 8

Appendix A SOIL REMEDIATION PROTOCOL

1. Survey units are initially excavated to the depth determined by soil characterization data

(# of borings samples). A 5 meter area around the location of elevated readings was removed to ensure that any contamination propagating from the original source was adequately remediated.

2. Because contamination was assumed to spread from the surface downward (unless evidence to the contrary was found), remediation was performed until soil activity was reduced to background levels or the activity at the bottom of the excavation was diminishing with continued sampling and was below the DCGL.

3. Remediation measurements using ISOCS were typically made with the detector positioned 2 m above the surface but using the 3 m investigation criteria.

4. Once remediation was complete, a SPA-3 scan was performed in the remediated area checking for discrete sources of elevated activity.

5. When these remediation actions were complete, the FSS survey was performed. Soil samples were collected. If ISOCS was used, the area was typically scanned at a distance of 3m or less.

Appendix B FR-0111 SU 9 Yard West Excavation Form 3 - SURVEY DATA INVESTIGATION / EVALUATION SHEET

Dl 6-156 Revision R Page 19 of 20 Form 3 SURVEY DATA INVESTIGATION / EVALUATION SHEET FSS Survey 3 Remediation Survey Cl RP Survey El FSS Related L Tracking Number: 05-001 Survey Area: FR 0111 SU9 Survey Date/Time: November 2004 Probe Type/ID: ISOCS 7722, 7607 E-600 ID: N/A Discoverer: Anderson/Madison Date/Time Discovered: 1/10/05 10:00 hrs.

Meter Green Tagged YES El NO ED ProbeGreenTagged YESELI NOj j Reason for Evaluation: Geometries used for scan analysis in SU9 did not include consideration of pipe surfaces present in S048 through S051 or presence of water in S004, S073, S074, S078 S079, S080, S081, S083 or S085. Need to ensure scan MDCs were less than the investigation levels of 0.36 pCi/g Co-60 and 1.0 pCi/g Cs-137.

Engineer/Supervisor Evaluation: The spectrums in question were re-analyzed and the MDCs compiled to ensure the required investigation levels were met. Documentation added to the survey package.

Instrument Failure Suspected YES El (Forward to Instrument Technician) NO rij Instrument Technician Evaluation:

Action: Resurvey O Data Acceptable El Other j (please specify)

Refer to Engineer Evaluation for disposition.

Final Disposition: Revised ISOCS scan MDCs meet the survey package investigation levels as required.

Approved By: - &uu c:)/ 1ihohiY Respo vl~~ or/Engine r Reviewed By:

87 S~e'rintendeiit When form completed, file in applicable survey package for FSS w...

or in Tech File 19.200.40.4 for non-FSS.

A (Aeometry Composer Report Date: Monday, January 10, 2005

Description:

Soil at 3m90dH20 Comment: testw_3inH20_abs File Name: c:\genie2k\isocs\data\geometry\in-situ\circularplane\

gsm\soilat_3m90d_3inh20(7722).geo Software: ISOCS Template: CIRCULARPLANE, Version: default Detector: 7722 Environment: Temperature= 22 C, Pressure= 760 mmHg, Rel.Humidity= 30%

Integration: Convergence= 1.00%, MDRPN= 2^(4) CRPN= 2^(4)

- Dimensions (cm):

I Geometry Compon. dl d2 d3 d4 d5 d6 Material D(g/cm3) R.Conc.

1 Side Walls 600.00 none 2 Layer 1 none 3 Layer 2 15.00 dirt4 1.70 1.00 4 Layer 3 none 5 Layer 4 none 6 Layer 5 none 7 Layer 6 none 8 Layer 7 none 9 Layer 8 1. none 10 Layer 9 none 11 Layer 10 none 12 Absorberl 7.50 water 1.00 13 Absorber2 ,.- none 14 Source-Detector 300.00 Collimator: 50mm-90dnew newISOCS_50mmside 90deg collimation_ [largehole_ collimator]

List of energies for efficiency curve generation:

59.5 661.7 1173.2 1332.5 I CIRCULR PLANE Y

121 X 13.1 1.1 -all thilnc3rssJ I x I I

1 bU>/

^BbU hKbULT'6 ISOCS/LabSOCS File: C:\GENIE2K\isocs\data\GEOMETRY\In-Situ\CIRCULAR PLANE\GSM\s ISOCS/LabSOCS Time: 01/10/05 09:37:06 Template: CIRCULAR PLANE Geom

Description:

OIL AT 3M90D H20 Comment: ISOCS:UNITS=ACT/G TEST W 3INH20 ABS Detector: 7722 Collimator: 50MM-90D NEW Convergence: 1.00 %

Area [Sq Meters]: 2.8274e+001 (C)

Mass [Grams]: 7.2100e+006 (C)

Length [Meters]: not used (C) = Value calculated by ISOCS (U) = Value modified by user Energy Efficiency %Uncertainty %Convergence Final i of Voxels

( X Mass) 59.54 7.02983e-001 10.0 -0.085996 11844 661.65 3.75705e+000 6.0 -0.111155 11844 1173.22 3.94012e+000 .' 4.0 -0.122721 11844 1332.49 3.94993e+000 l; 4.0 -0.124186 11844

-i I-

A Geometry C;omposer Keport Date: Monday, January 10, 2005

==

Description:==

Soil at 3m90dpipe Comment: test w_3mmpipeabs File Name: c:\genie2k\isocs\data\geometry\in-situ\circularplane\

gsm\soilat_3m90d 15mmpipe(7607).geo Software: ISOCS Template: CIRCULAR-PLANE, Version: default Detector: 7607 Environment: Temperature= 22 :C, Pressure= 760 mmHg, Rel.Humidity= 30%

Integration: Convergence= 1.00%, MDRPN= 2^(4) CRPN= 2^(4)

. Dimensions (cm):

f Geometry Compon. dl d2 d3 de d5 d6 Material D(a/cm3) R.Conc.

1 Side Walls 600. 00 none 2 Layer 1 none 3 Layer 2 15.00 dirt4 1.70 1.00 4 Layer 3 none 5 Layer 4 none 6 Layer 5 none 7 Layer 6 none 8 Layer 7 none 9 Layer 8 none 10 Layer 9 none 11 Layer 10 none 12 Absorberl 0.30 csteel 7.86 13 Absorber2 none 14 Source-Detector 300.00 , J.

Collimator: 50mm-90d new newISOCS 50mm side 90degcollimation_ [large_hole collimator]

List of energies for efficiency.curve generation:

59.5 661.7 1173.2 1332.5 I CIRCULA PLANE I I x 12.1 f- r1 3 1 Ka z I I

I U~bI b/ t'. )U i -

t4bU ISOCS/LabSOCS File: C:\GENIE2K\i'socs\data\GEOMETRY\In-Situ\CIRCULAR PLANE\GSM\s ISOCS/LabSOCS Time: 01/10/05 08:55:00 Template: CIRCULAR PLANE Geom

Description:

IL AT 3M90D PIPE Comment: ISOCS:UNITS=ACT/G TEST_W 3MMPIPEABS Detector: 7607 Collimator: 50MM-90DNEW Convergence: 1.00 %

Area [Sq Meters]: 2.8274e+001 (C)

Mass [Grams]: 7.2100e+006 (C)

Length [Meters]: not used (C) = Value calculated by ISOCS (U) = Value modified by user Energy Efficiency %Uncertainty %Convergence Final # of Voxels

( X Mass) 59.54 1.78883e-001 '1l0.0 0.081986 12042 661.65 6.49908e+000 6.0\ -0.165589 12042 1173.22 5.89274e+000 4.0 -0.162896 12042 1332.49 5.73927e+000 4.0 -0.159890 12042

4 Geometry Composer Report Date: Monday,. January 10, 2005

==

Description:==

Soil at 3m90d H20 Comment: test w 3inH20_abs, File Name: c:\genie2k\isocs\data\geometry\in-situ\circularplane\

gsm\soilat_3m90d_3inh2O(7607).geo Software: ISOCS Template: CIRCULAR PLANE, Version: default Detector: 7607 Environment: Temperature= 22 :C, Pressure= 760 mmHg, Rel.Humidity= 30%

Integration: Convergence= 1.00%., MDRPN= 2^(4) CRPN= 2^(4)

Dimensions (cm):

i Geometry Compon. dl d2 d3 d4 d5 d6 Material D(q/cm3) R.Conc.

1 Side Walls 600.00 none 2 Layer 1 none 3 Layer 2 15.00 dirt4 1.70 1.00 4 Layer 3 none 5 Layer 4 none 6 Layer 5 none 7 Layer 6 none 8 Layer 7 none 9 Layer 8 none 10 Layer 9 none 11 Layer 10 none 12 Absorberl 7.50 water 1. 00 13 Absorber2 none 14 Source-Detector 300.00 Collimator: 50mm-90dnew newISOCS_50mm side_90degcollimation [large holecollimator]

List of energies for efficiency curve generation:

59.5 661.7 1173.2 1332.5 lICIRCULR PLANE

'1 1.1 wll th)Ckness 12.1 -

.h 0 13.1

_ I

ISOCS/LabSOCS File: C:\GENIE2K\isocs\data\GEOMETRY\In-Situ\CIRCULAR PLANE\GSM\s ISOCS/LabSOCS Time: 01/10/05 09:08:08 Template: CIRCULAR PLANE Geom

Description:

OIL AT 3M90D H20 Comment: ISOCS:UNITS ACT/G TEST W 31NH20 ABS Detector: 7607 Collimator: 50MM-90DNEW Convergence: 1.00 %

Area [Sq Meters]: 2.8274e+001 (C)

Mass [Grams]: 7.2100e+006.,(C)

Length [Meters]: not used (C) = Value calculated by ISOCS (U) = Value modified by user Energy Efficiency %Uncertainty %Convergence Final # of Voxels

( X Mass) 59.54 6.71752e-001 10.0 0.070002 12042 661.65 3.78133e+000 6.0 -0.172645 12042 1173.22 3.89617e+000 ' 4.0 -0.168882 12042 1332.49 3.89341e+000 2 4.0 -0.165716 12042

e-.* I -. -S 7607-EYC00805.tPT 14-Jan-2005 14:49 Page 1 of 6 GAMA****************A******** ***I****************

• • • • G A MM A S PE CT R UM A NA L YSI1S***

• • • • • • • • • • • • • • • • • • • • • • • • • ~*************************

ISOCS Report Generator ISOCSAN.TPL 2/26/96 Report Generated on  : 1/14/05 2:49:14 PM Spectrum File Name  : C:\GENIE2K\CAMFILES\Backyard\FR0111-SU9\76 Sample Title  : Excavations Sample Identification  : S048 Sample Type  : EXC Desc. 1 : FROII-09-1-S048-GS-0000 Desc. 2 :

Desc. 3 :

Desc. 4 :

Peak Locate Threshold 4 .00 Peak Locate Range (in channels) : 50 - 8192 Peak Area Range (in channels) 50 - 8192 Identification Energy Tolerance : 2.000 keV Sample Size  : 1.000E+000 gm Note: For Point Source, report UNIT - none.

Sample Taken On'  : 11/4/04 4:55:04 PM Acquisition Started  : 11/4/04 5:11:47 PM Live Time 1096.0 seconds Real Time 1096.8 seconds Energy Calibration Used Done On  : 6/30/04 Efficiency / Geometry ID  : IL ATI3M90DPIPE Efficiency Calibration Used Done On  : 1/14/05 I InIt

7607-EXCO0805.RPT 14-Jan-2005 14:49 Page 2 of 6 Peak Locate Analysis Report 1/14/2005 2:49:14 PM Page 2

• • • • • PE AK L OC A TE R EP OR T***

• • ******************* ****i*************t******************* ********** *****

• Detector Name: 7607 Sample

Title:

Excavations Peak Locate Performed on: 1/14/2005 2:49:13 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 4.00 Peak Centroid Centroid Energy Peak No. Channel Uncertainty (keV) Significance 1 246.31 0.2217 75.27 5.88 2 278.17 0.24 85 84.99 4.80 3 781.27 0.1686 238.57 8.97 4 966.17 0.2068 295.02 5.86 5 1151.62 0.1707 351.63 7.67 6 1670.66 0.2032 510.08 4.52 7 1908.27 0.1620 582.61 7.88 8 1993.61 0.1471 60B.66 10.11 9 2980.59 0.1656 909.96 7.29 10 3169.92 0.2060 967.76 4.69 11 4780.40 0. 0934 1459.38 20.16

? = Adjacent peak noted Errors quoted at 1.000 sigma

Page 3 of 6 2.4-3an-2005 14:49 7607-EXC00805 .RPT 7607-EXC00805.RPT 14-Jan-2005 14:49 Page 3 of 6 Peak Analysis Report 1/14/05 2:49:14 PM Page 3 P E A K A N A L Y S I S R E P O R T

• • t******~***********************************

Detector Name: 7607 Sample

Title:

Excavations Peak Analysis Performed on: 1/14/05 2:49:13 PM Peak Analysis From Channel: 50 Peak Analysis To Channel: -8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Ar ea  % Uncert. Counts 1 242- 257 246.31 75.27 1.49E+002 73.73% 9.70E+002 2 274- 283 278.17 84.99 6.OOE+001 121.76% 5.82E+002 3 772- 792 781.27 238.57 2.56E+002 29.97% 3.49E+002 4 959- 975 966.17 295.02 1.08E+002 50.24% 2.08E+002 5 1146- 1160 1151.62 351.63 1.65E+002 29.44% 1.53E+002 6 1662- 1681 1670.66 510.08 1.34E+002 32.11% 9.98E+001 7 1901- 1915 1908.27 582.61 1 .42E+002 23.86% 5.33E+001 8 1985- 2002 1993.61 608.66 2.01E+002 20.62% 7.59E+001 9 2972- 2988 2980.59 909.96 1.09E+002 27.66% 4 .04E+001 10 3164- 3178 3169,.92 967.76 5. 00E+001 56.60% 5.40E+001 11 4768- 4793 4780.40 1459.38 8.89E+002 6.85% 1.87E+001 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXC00805.RPT 14-Jan-2005 14:49 Page 4 of 6 Interference Corrected Activity Report 1/14/05 2:49:14 PM Page 4

• • • • • • • I************************t**************** **

• • • • • 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

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB

.............. IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) tpCi/gm ) Uncertainty ANN 0.967 511.00* 100.00 4.794E-001 33.67%

K-40 0.922 1460.81* 10.67 3. 637E+00t 8.87%

TL-208 0.725 277.35 6.80 510.84* 21.60 2.219E+000 34.65%

583.14* 84.20 6.205E-001 25.85%

763.13 1.64 860.37 12.46 PB-212 0.622 74.81* 10.70 3.156E+001 76.54%

77.11 18.00 87.30 8.00 238.63* 44.60 1.778E+000 34.37%

3,00.09 3.41 PB-214 0.681 53.23 1.11 74.82* 6.21 5.438E+001 76. 34%

77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.768E+000 52.56%

351.92* 37.20 1.444E+000 32.46%

• = Energy line found in the spectrum.

Energy tolerance used was 2.000 Nuclide confidence index threshold - 0.30 Errors quoted at 1.960 sigma

7607-EXC00805.RPT 514-Jan-2005 14:49 Page 5 of 6 Interference Corrected Activity Report 1/14/05 2:49:14 PM Page 5

• • • • • • • • I**************************************************** ******

• • • IN11TE R FE RE NCE C O RR EC TED R EP O RT *****

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

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pCi/gm ) Uncertainty ANN 0.967 3.4535E-001 47.79%

K-40 0.922 3.6370E+001 8.87%

TL-208 0.725 6.2049E-001 25.64%

PB-212 0.622 1.7775E+000 34.16%

PB-214 0.681 1.5100E+000 27.72%

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis Errors quoted at 1.960 sigma

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

• Peak Locate Performed on: 1/14/0! 5 2:49:13 PM Peak Locate From Channel: - 50 Peak Locate To Channel: _. 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per second  % Uncertainty 2 84.99 Xho 5.4779E-002 121.76 8 608.66 biv4 1.8350E-001 20.62 9 909.961 9.9090E-002 27.66 10 967.76lAeCA18 4.5596E-002 56.60 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXC00805 .RPT 14-Jan-2005 14:49 Page 6 of 6 Nuclide MDA Report 1/14/05 2:49:14 PM Page 6

• • • • • • • • I***A*************************************************************

• • • • • NU C L IDE M DA R EP O RT***

Detector Name: 7607 Sample Geometry: Soil 3m 90d Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuclide-MDA Name (keV) (C) (pCi/gm ) (pCi /gm )

CO-60 1173.22 100.00 2.58E-001 1.99E-001 1332.49 100.00 1.99E00l CS -137 661.65 85.12 3.37E-00l 3.37E-001 EU-152 121.78 28.40 2.98E+000 8.82E-001 244.69 7.49 6.21E+000 344 .27 26.50 1.39E+000 443.98 2.81 1.03E+001 778.89 12.74 1.99E+OOO 867.32 4.16 6.34E+000 964.01 14.40 2.11E+000 1085.78 10.00 2.34E+000 112.02 13.30 2.12E+000 1407.95 20.70 8.82E-001 EU-154 123.07 40.50 2.05E+ODO 6.24E-001 247.94 6.60 6.26E+000 591.81 4.83 5.58E+000 692.41 1.69 1.52E+001 723.30 19.70 1.45E+000 756.87 4 .33 5.91E+000 873.19 11.50 2.26E+000 996.32 10.30 -2.03E+000 1004.76 17.90 .1.28E+000 1274.45 35.50 6.24E-O01 1596.53 1.85 7.30E+000

+ = Nuclide identified during the nuclide identification

• = Energy line found in the spectrum

> . MDA value not calculated

= Half-life too short to be able to perform the decay correction

7607-E.XC00806.RPT 14-Jan-2005 24:51 Page 1 of 6

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • A***********************

• • • • • GA MM A S PE CT R UM A NA LYS I S***

t******************************************I*******I*****I *1*1**

ISOCS Report Generator ISOCSAN.TPL 2/26/96 Report Generated On  : 1/14/05 2:51:20 PM 7

Spectrum File Name  : C:\GENIE2K\CAMFILES\Backyard\FRO111-SU9\ 6 Sample Title  : Excavations Sample Identification  : S049 Sample Type  : EXC Desc. 1 : FROIII-09-1-S049-GS-0000 Desc. 2 :

Desc. 3 :

Desc. 4 :

Peak Locate Threshold 3.00 Peak Locate Range (in channels)  : so - 8192 Peak Area Range (in channels) 50 - 8192 Identification Energy Tolerance  : 2.000 keV Sample Size  : 1.000E+000 gm Note: For Point Source, report UNIT = none.

Sample Taken On  : 11/4/04 5:15:57 PM Acquisition Started  : 11/4/04. 5:15:57 PM Live Time 1000.0 seconds Real Time 1000.6 seconds Energy Calibration Used Done On  : 6/30/04 Efficiency / Geometry ID  : ILAT 3M90DPIPE Efficiency Calibration Used Done On  : 1/14/05

7607-EXC00806.RPT 14-Jan-2005 14:51 Page 2 of 6 Peak Locate Analysis Report 1/14/2005 2!51:20 PM Page 2 P E A K L O C A T E R E P O R T Detector Name: 7607 Sample

Title:

Excavations Peak Locate Performed on: 1/14/2005 2:51:16 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 3.00 Peak Centroid Centroid Energy Peak No. Channel Uncertainty (keV) Significance 1 246.39 0.2434 75.29 5.22 2 609.07 0.2339 186.01 4.70 3 780.96 0.1770 238.48 8.50 4 1151.89 0.1830 351.72 7.31 5 1672.15 0.2055 510.53 5.12 6 1907.75 0.1955 582.45 5.76 7 1993.33 0.1695 608.58 7.14 8 2981.61 0.1742 910.27 6.80 9 3170.62 0.2285 967.97 3.56 10 3666.71 0.2154 1119.41 *4.15 11 4780.30 0.1014 1459.36 16.68 12 5773.99 0.2005 1762.70 3.60

? = Adjacent peak noted Errors quoted at 1.000 sigma

Page 3 of 6 14-3an-2005 14:51 7607-EXCOO8O6 .RPT 7607-EXC00806.RPT 14-Jnan-200S 14:51 Page 3 of 6 Peak Analysis Report 1/14/05 2:51:20 PM Page 3 4***44 4*44*4 ** *4 44 *44444 A* LY*44I*R*** *E P*4444R4T*************4**

• • • • P E AK A NA L YS IS R EP OR T***

• • • • • • • • • • 4**********************************************************4*****

Detector Name: 7607 Sample

Title:

Excavations Peak Analysis Performed on: 1/14/05 2:51:16 PM Peak Analysis From Channel: 50 Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net Peak

] Net Area Continuum No. start end centroid (keV) Ar ea  % Uncert. Counts, 1 242- 251 246.39 75.29 6.10E+001 115.66% 5.44E+002 2 599- 617 609.07 186.01 9.74E+001 68.48% 3.14E+002 3 774- 786 780.96 238.48 9.32E+001 55.10% 2.26E+002 4 1146- 1160 1151.89 351.72 9.55E+001 43.29% 1.21E+002 5 1664- 1680 1672.15 510.53 8.25E+001 45.88% 9.25E+001 6 1900- 1914 1907.75 582.45 7.21E+001 41.97% 5.79E+001 7 1984- 2002 1993.33 608.58 1.03E+002 35.81% 7.40E+001 8 2974- 2988 2981.61 910.27 8.24E+001 31.38% 3.16E+001 9 3164- 3178 3170.62 967.97 4.OE+001 61.06% 3.99E+001 10 3660- 3674 3666,.71 1119.41 3.99E+001 51.47% 2.41E+001 11 4768- 4792 4780.30 1459.36 6.60E+002 8.15% 2.21E+001 12 5766- 5780 5773.99 1762.70 4.18E+001 38.73% 9.22E+000 M = First peak in a multiplet region m r Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXC00806.RPT 14-Jan-2005 14:51 Page 4 o f 6 Interference Corrected Activity Report 1/14/05 2:51:20 PM Page 4 i*********************** ******t*******************************************

• • • • • 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 *****

• • • • • • • • • • • • • • *i********* * ******** *** ************************** **********

Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (pCi/gm ) Uncertainty ANN 0.991 511.00* 100.00 3.238E-001 47.84%

K-40 0.919 1460.81* 10.67 2.983E+001 11.48%

TL-208 0.725 277.35 6.80 510.84* 21.60 1.499E+000 48.53%

583.14* 84.20 3.463E-001 43.95%

763.13 1.64 860.37 12.46 PB-212 0.625 . 74.81* 10.70 1.762E+001 117.66%

77.11 18.00 87.30 8.00 238.63* 44.60 7.677E-001 57.45%

390.09 3.41 BI-214 0.402 609.31* 44 .80 .9.388E-001 37.93%

665.45 1.29 768.36 4.80 806.17 1.12 934.06 3.03 1120.29* 14.80 1.224E+000 52.22%

1155.19 1.64 1238.11 5.86 1280.96 1.44 1377.67 3.92 1401.50 1.55 1407.98 2.80 1509.23 2.12 1661.28 1.14 1729.59 2.88 1764.49* 15.36 1.378E+000 39.60%

1847.42 2.04 2118.55 1.14 2204.21 4.86 2447.86 1.50 RA-226 1.000 186.10* 3.50 1.019E+001 70.31%

U-235 0.708 89.95 2.80 93.35 4.50 143.76 10.90 185.71* 57.50 6.202E-001 70.35%

• = Energy line found in the spectrum.

Energy tolerance used was 2.000 Nuclide confidence index threshold . 0.30 Errors quoted at 1.960 sigma

7607-EXC00806.RPT 14-Jan-2005 14:51 Page 5 of 6 Interference Corrected Activity Report 1/14/05 2:51:20 PM Page 5

• • • • • • • • • • IN**. *** * ** *************************T*E** R.* *R.* *****

• • • I NT ERF E RE N CE C O RR E CTED R E P ORT *****

• • • • • • • • • • • • • • • • • ********I************************************************

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pCi/gm ) Uncertainty ANN 0.991 2.4896E-001 63.59%

K-40 0.919 2.9831E+001 11.48t TL-208 0.725 3.4629E-001 43.82%

PB-212 0.625 7.6774E-001 57.331 BI-214 0.402 1.0974E+000 24.62%

? RA-226 1.000 1.0189E+001 70.31%

? U-235 0.708 6.2021E-001 70.35V

? = nuclide is part of an undetermined solution X . nuclide rejected by the interference analysis Errors quoted at 1.960 sigma

• • • • • • • • U N I D'E N T I F I E D P E A K S ****

Peak Locate Performed on: /14/05 2:51:16 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (kev) Counts per Second  % Uncertainty 4 351.72 Pb214 9.5491E-002 43.29 8.2447E-002 31.38 9 967.971Act 2 4.0075E-002 61.06 M - First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXC00806.RPT 714-Jan-2005 14:51 Page 6 of 6 Nuclide MDA Report 1/14/05 2:51:20 PM Page 6

• • • • • • • • • I*********************

• • • • • NU C LI DE M DA R EP O RT***

~**************** **********,*******,*** *** ***** *************I******** ********

• Detector Name: 7607 Sample Geometry: Soil 3m 90d Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuclide MDA Name (keV) (S) (pCi/gm ) (pci/gm )

CO-60 1173.22 100.00 2.49E-001 1.99E-00l 1332.49 100.00 1.99E-00l CS-137 661.65 85.12 3.13E-001 3.13E-00l EU-152 121.78 28.40 2.87E+000 8.37E-001 244 .69 7.49 6.20E+000 344 .27 26.50 1.42E+000 443.98 2.81 1.43E+001 778.89 12.74 1.87E+000 867.32 4.16 6.17E+000 964 .01 14.40 2.01E+000 1085.78 10.00 2.26E+000 1112.02 13.30 1.97E+000 1407.95 20.70 8.37E-OD1 EU-154 123.07 40.50 1.97E+OOO 5.76E-001 247.94 6.60 6.20E+000 591.81 4 .83 5.57E+000 692.41 1 .69 1.56E+00l 723.30 19.70 1.23E+000 756.87 4.33 5.80E+000 873.19 11.50 2.12E+000 996.32 10.30 2.12E+000 1004.76 17.90 1.32E+000 1274.45 35.50 5.76E-001 1596.53 1.85 8. 17E+000

+ = Nuclide identified during the nuclide identification

• = Energy line found in the spectrum

> = MDA value not calculated

@ = Half-life too short to be able to perform the decay correction

Page 1 of 7 14-an-2OO5 14:52 7607-EXC00843 .PPT 7607-EXC00843.RPT 14-.7an-2005 14:52 Page I of 7

• • • • • A****A**I**I*A*A**i**I****************************************S*****

• • • • • GA MM A S PE CT RUVM A NA LYS I S***

• iII***** *****I** ** ****I**************** ***********************~*** *****

ISOCS Report Generator In;OCSkJ.TPL 2/26/96 Report Generated On  : L/14/05 2:52:49 PM Spectrum File Name  : :\GENIE2K\CAMFILES\Backyard\FRO111-SU9\76 Sample Title Excavations Sample Identification ;050 Sample Type  : EExC Desc. 1 : frOlll-09-1-sO50-gs-0000 Desc. 2 :

Desc. 3 :

Desc. 4 :

Peak Locate Threshold 3.00 Peak Locate Range (in channels) 50 - 8192 Peak Area Range (in channels) 50 - 8192 Identification Energy Tolerance 2.000 keV Sample Size 1.00OE+000 gms Note: For Point Source, report UNIT e none.

Sample Taken On  : 11/6/04 1:13:32 PM Acquisition Started  : 11/6/04 1:13:32 PM Live Time 1000.0 seconds Real Time 1000.6 seconds Energy Calibration Used Done On  : 6/30/04 Efficiency / Geometry ID

• ILAT 3M90D PIPE Efficiency Calibration Used Done On

• 1/14/05 111i105

7607 -EXC00843. RPT 14-Jan-2005 14:52 Page 2 of 7 Peak Locate Analysis Report 1/14/2005 2:52:49 PM Page 2

• A*****L******A*** R T****I**** ********

• • • • • PE AK L OC A TE R EP O RT***

• • ,&***********I*4*********,******************************** ******** ********

Detector Name: 7607 Sample

Title:

Excavations Peak Locate Performed on: 1/14/2005 2:52:46 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 3.00 Peak Centroid Centroid Energy Peak No. Channel Uncertainty (keV) Significance 1 246.11 0.2052 75.21 7.53 2 782.19 0.1855 238.86 7.50 3' 966.98 0.2419 295.27 4.71 4 1109.87 0.2539 338.89 3.58 5 1153.20 0.1941 352.11 6.31 6 1673.37 0.2032 510.91 5.15 7 1910.35 0.1823 583.25 6.61 8 1995.66 0.1712 609.29 7.65 9 2984.20 0.1704 911.06 6.91 10 3174.09 0.2331 969.10 3.53 11 3195.89 0.2818 975.80 .3.09 12 3669.01 0.2145 1120.11 3.74 13 4785.46 0.1013 1460.93 17.31 14 5779.83 0.2270 1764.48 3.28

? = Adjacent peak noted Errors quoted at 1.000 sigma

7607-EXC00843.RPT 14-Jan-2005 14:52 Page 3 of 7 Peak Analysis Report 1/14/05 2:52:49 PM Page 3

• • * * *

• A K

• • • • • • • • • • • • • • ~**P N A A *************E Y**IS* R* E*IP*******

• • • • • PEAKR A NA LY S IS R EP OR T***

• • i***~******t******* * ****************************************.*****4 ******

Detector Name: 7607 Sample

Title:

Excavations Peak Analysis Performed on: 1/14/05 2:52:46 PM Peak Analysis From Channel: 50 Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net IPeak Net Area Continuum No. start end centroid (keV) Ar4-a  % Uncert. Counts 1 242- 251 246.11 75.21 7.41E+001 98.60% 5.78E+002 2 774- 790 782.19 238.86 1.48E+002 42.93% 2.88E+002 3 961- 974 966.98 295.27 4 . 84E+001 82.13% 1.32E+002 4 1104- 1118 1109.87 338.89 4 .36E+001 82.95% 1.02E+002 5 1147- 1161 1153.20 352.11 8.55E+00l 48.56% 1.26E+002 6 1666- 1686 1673.37 510.91 1.32E+002 29.20% 7.02E+001 7 1903- 1919 1910.35 583.25 9.16E+001 37.40% 6.84E+001 8 1986- 2002 1995.66 609.29 9.97E 001 33.19% 5.93E+001 9 2977- 2993 2984.20 911.06 1. 08E+002 23.86% 2.09E+001 M 10 3168- 3201 3174,.31 969.10 5.39E+001 31.35% 2.52E+OOl m 11 3168- 3201 3196.27 975.80 1.59E+001 72.10% 2.46E+001 12 3662- 3677 3669.01 1120.11 5. 00E+001 43.32% 2.40E+001 13 4774- 4797 4785.46 1460.93 6.08E+002 8.39% 1.77E+001 14 5773- 5786 5779.83 1764 .48 2.08E 001 69.91% 1.22E+001 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-ExC00843.RPT 14-Jan-2005 14:52 Page 4 of 7 Interference Corrected Activity Report 1/14/05 2:52:49 PM Page 4

• • • • • • • • t******************************************************** *** ******

• • • • • 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 *****

• ***************** *************************4*,****************** *********

Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB

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

Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (pCi/gms ) Uncertainty ANM 1.000 511.00* 100.00 5.174E-001 32.19%

K-40 0.999 1460.81* 10.67 2.750E+001 11.66%

TL-208 0.737 277.35 6.80 510.84* 21.60 2.395E+000 33.21%

583.14* 84.20 4 .400E-001 39.60%

763.13 1.64 860.37 12.46 PB-212 0.625 74.81* 10.70 2.156E+001 100.95%

77.11 18.00 87.30 8.0D 238.63* 44.60 1 .218E+000 45.91%

300.09 3.41 BI-214 0.430 609.31* 44.80 9.088E-001 35.46%

665.45 1.29 768.36 4.80 806.17 1.12 934.06 3.03 1120.29* 14.80 1.535E+000 44 .21%

1155.19 1.64 1238.11 5.86 1280.96 1.44 1377.67 3.92 1401.50 1.55 1407.98 2.80 1509.23 2.12 1661.28 1.14 1729.59 2.88 1764.49* 15.36 6.865E-001 70.39%

1847.42 2.04 2118.55 1.14 2204.21 4.86 2447.86 1.50 PB-214 0.685 53.23 1.11 74.82* 6.21 3.715E+001 100.79V 77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 9.293E-001 83.83%

351.92* 37.20 8.486E-001 51.36%

AC-228 0.319 89.95 2.10 93.35 3.50 105.00 1.60

- I 5 g 7607-EXC00843.P.PT 14-Jan-2005 14:52 Page 5 of 7 Interference Corrected Activity Report 1/14/05 2:52:49 PM Page 5 Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (pCi/gms ) Uncertainty AC-228 0.319 129.08 2.80 209.28 4.40 270.23 3.60 327.64 3.20 338.32* 11.40 1.411E+000 93.22%

409.51 2.13 463.00 4.40 794.70 4.60 835.50 1.75 911.07* 27.70 1.696E+000 27.42%

964.60 5.20 969.11* 16.60 1.429E+000 39.30%

1588.00 3.50

• = Energy line found in the spectrum.

Energy tolerance used was 2.000 Nuclide confidence index threshold . 0.30 Errors quoted at 1.960 sigma

7607-EXC00843.RPT 14-Jan-2005 14:52 Page 6 of 7 Interference Corrected Activity Report 1/14/05 2:52:49 PM Page 6

• • • • • IN T ER F ERE N CE COR R EC T ED R E P ORT ***

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pCi/gms ) Uncertainty ANN 1.000 4 .2239E-001 40.42%

K-40 0.999 2.7505E+001 11.66%

TL-208 0.737 4 .3997E-001 39.46%

PB-212 0.625 1. 2185E+000 45.75%

BI-214 0.430 9.3412E-001 26.69%

PB-214 0.685 8.6783E-001 43.83%

AC-228 0.319 1.5749E5000 21.94%

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis Errors quoted at 1.960 sigma

• U N I DE N T I F I E D P E A K S

• Peak Locate Performed on: 1/14/0S 2:52:46 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty m 11 975.80 1.5937E-002 72.10 _- l;t ArubLL M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-ExC00843.RPT 14-Jan-2005 14:52 Page 7 of 7 Nuclide MDA Report 1/14/05 2:52:49 PM Page 7

• I******************* ** ** ** ** * *

• • • • • N UC L IDE M-DA R E POR T***

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Detector Name: 7607 Sample Geometry: Soil 3m 90d Sample

Title:

Excavations Nuclide Library Used: C:\GElJIE2K\CAMFILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuclide MDA Name (keV) (%i) (pCi/gms ) (pCi/gms )

CO-60 1173.22 100.00 2.33E-001 1.71E-001 1332.49 100.00 1.71E-001 CS-137 661.65 85.12 3.05E-001 3.05E-001 EU-152 121.78 28.40 2.86E+000 8.07E-001 244.69 7.49 6.50E+000 344.27 26.50 1.32E+000 443.98 2.81 1.O1E+001 778.89 12.74 1.89E+000 867.32 4.16 6.01E+000 964 .01 14.40 1.99E+000 1p85.78 10.00 2.19E+000 1112.02 13.30 1.92E+000 1407.95 20.70 8.07E-001 EU-154 123.07 40.50 1.99E+000 6.OOE-001 247.94 6.60 6.41E+000 591.81 4.83 5.97E+000 692.41 1.69 1.46E+001 723.30 19.70 1.43E+000 756.87 4.33 5.76E+000 873.19 11.50 2.08E+000 996.32 10.30 2.14E+000 1004 .76 17.90 1.33E+000 1274.45 35.50 6.OOE-001 1596.53 1.85 7.85E+000

+ = Nuclide identified during the nuclide identification

• = Energy line found in the spectrum

> = MDA value not calculated

@ = Half-life too short to be able to perform the decay correction

7607-EXC00842 .RPT 14-Jan-2005 14:54 Page 1 of 7

• • • • • GA M MA S PE CT R UM A NA L Y SI S

• • • .**** ********~.****************~**************** ** *.*** *****.***.****~*.**

ISOCS Report Generator ISOCSAN.TPL 2/26/96 Report Generated On  : 1/14/05 2:54:05 PM Spectrum File Name  : C:\GENIE2K\CAMFILES\Backyard\FRO1lI-SU9\76 Sample Title  : Excavations Sample Identification  : s051 Sample Type  : EXC Desc. 1 : frO111-09-1-sO51-gs-0000 Desc. 2 :

Desc. 3 :

Desc. 4 :

Peak Locate Threshold 3.00 Peak Locate Range (in channels) : 50 - 8192 Peak Area Range (in channels) 50 - 8192 Identification Energy Tolerance : 2.000 keV Sample Size l.OOOE-t000 gins Note: For Point Source, report UNIT = none.

Sample Taken On

• 11/6/04 12:51:10 PM Acquisition Started  : 11/6/04 12:51:10 PM Live Time 1000.0 seconds Real Time 1000.6 seconds Energy Calibration Used Done On  : 6/30/04 Efficiency / Geometry ID  : IL AT 3M90DPIPE Efficiency Calibration Used Done On  : 1/14/05 aN ii iijos,

7607-EXC00842.RPT 14-Jan-2005 14:54 Page 2 of 7 Peak Locate Analysis Report 1/14/2005 2:54:05 PM Page 2

• CA* **.RPt *Lt*

P EA 0 T******

• • at*P E AK L OC A TE R E PO RT***

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• II*1*1* **I* * ** *1* *

• 1**** *** **1*1*1 ******1*1*** *11 * *1*1** * **1*1 Detector Name: 7607 Sample

Title:

Excavations Peak Locate Performed on: 1/14/2005 2:54:04 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 3.00 Peak Centroid Centroid Energy Peak No. Channel Uncertainty (keV) Significance 1 246.50 0.2238 75.33 6.09 2 304.12 0.2923 92.92 3.29 3 781.74 0.1665 238.72 9.07 4 967.62 0.2450 295.46 3.60 5 1152.96 0.1724 352.04 7.84 6 1673.56 0.2181 510.96 4.18

.7 1910.43 0.2020 583.27 5.47 8 1995.52 0.1534 609 :25 9.33 9 2984.46 0.1832 911.14 5.57 10 3172.88 0.1979 968.66 5.30 11 3669.50 0.2289 1120.26 3.70 12 4785.28 0. 0984 1460.88 18.07 13 5780.79 0.2107 1764.77 3.93

? = Adjacent peak noted Errors quoted at 1.000 sigma

7607-EXC00842.RPT 14-Jan-2005 14:54 Page 3 of 7 Peak Analysis Report 1/14/05 2:54:05 PM Page 3 P E A K A N A L Y S I S R E PO R T

• • ********** *********** ***** **I*************t*******.***..i********* * ******

Detector Name: 7607 Sample

Title:

Excavations Peak Analysis Performed on: 1/14/05 2:54:04 PM Peak Analysis From Channel:. 50 Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net IPeak Net Area Continuum No. start end centroid (keV) Areea  % Uncert. Counts 1 242- 251 246.50 75.33 1 .02E+002 72.96% 5.90E+002 2 300- 309 304.12 92.92 7.96E+001 77.95% 4 .07E+002 3 775- 787 781.74 238.72 1.47E+002 35.04% 2.05E+002 4 962- 975 967.62 295.46 6.29E+001 65.82% 1.38E+002 5 1146- 1160 1152.96 352.04 1.07E+002 40.69% 1.34E+002 6 1663- 1685 1673.56 510.96 1 . 05E+002 45.34% 1.26E+002

-7 1902- 1919 1910.43 583.27 6.08E+001 61.75% 9.42E+001 8 1988- 2002 1995.52 609.25 1.27E+002 26.30% 5.55E+001 9 2977- 2993 2984.46 911.14 8.10E+001 33. 93% 3.70E+001 10 3167- 3180 3172.88 968.66 4 .72E+001 4 8.24% 3.18E+001 11 3663- 3677 3669.50 1120.26 3.71E+001 59.43% 3. 09E+001 12 4771- 4796 4785.28 1460.88 7.60E+002 7.26% 7.05E+000 13 5773- 5787 5780.79 1764 .77 3.27E+001 46.21% 9.30E+000 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXC00842.RPT 14-Jan-2005 14:54 Page 4 of 7 Interference Corrected Activity Report 1/14/05 2:54:05 PM Page 4

• • • • • • • • • • • • • ********** ** ******** ** ** ******~**~***** *** ******* *** I* ******* *1***

• • • • • 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

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB

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

Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (pCi/gms ) Uncertainty ANN 1.000 511.00* 100.00 4.121E-001 46.46%

K-40 1.000 1460.81* 10.67 3.407E+001 9.19%

TL-208 0.735 277.35 6.80 510.84* 21.60 1.908E+000 47.17%

583.14* 84.20 2.920E-001 62.55%

763.13 1.64 860.37 12.46 PB-212 0.621 74.81* 10.70 2.356E+001 75.81%

77.11 18.00 87.30 8.00 238.63* 44.60 1.115E+000 38.87%

300.09 3.41 BI-214 0.433 609.31* 44.80 .1.152E+000 27.91%

665.45 1.29 768.36 4.80 806.17 1.12 934.06 3.03  :; I 1120.29* 14.80 1.140E+000 59.72%

1155.19 1.64 1238.11 5.86 1280.96 1.44 1377.67 3.92 1401.50 1.55 1407.98 2.80 1509.23 2.12 1661.28 1.14 1729.59 2.88 1764.49* 15.36 1.075E+000 4 6.75%

1847.42 2.04 2118.55 1.14 2204.21 4.86 2447.86 1.50 PB-214 0.681 53.23 1.11 74.82* 6.21 4.060E+001 75.60%

77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 1.132E+000 67.60%

351.92* 37.20 1.029E+000 42.92%

TH-234 0.708 63.29 3.80 92.59* 5.41 '1.269E+001 80.57%

• = Energy line found in the spectrum.

Energy tolerance used was 2.000 Nuclide confidence index threshold - 0.30

14-Jan-2005 14:54 Page 5 of 7 7607-EXC00842.RPT 1/14/05 2:54:05 PM Page 5 Interference Corrected Activity Report Errors quoted at 1.960 sigma

7607-EXC00842.RPT 14-Jan-2005 14:54 Page 6 of 7 Interference Corrected Activity Report 1/14/05 2:54:05 PM Page 6

• • • • • • • • • • I******** *****************************************************

• • • • • I NT E RF E RE NCE CO R REC T ED R E PO RT ***

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • ~****************&***,*h*,***

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pCi/gms ) Uncertainty ANN 1.000 3.4906E-001 56.00%

K-40 1.000 3.4074E+001 9.19%

TL-208 0.735 2.9200E-001 62.47%

PB-212 0.621 1.1147E+000 38.69%

BI-214 0.433 1.1314E+000 22.25%

PB-214 0.681 1.0549E+000 36.27%

T1M-234 0.708 1.2689E+001 80.57%

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis Errors quoted at 1.960 sigma U N I D E N T I F I E D P E A K S ******

Peak Locate Performed on: 1/14/05 2:54:04 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty 8.0996E-002 33.93 I10 968. 66l~ 4.7237E-002 48.24 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXC00842.RPT 14-Jan-2005 14:54 Page 7 of 7 Nuclide MDA Report 1/14/05 2:54:05 PM Page 7

• • • ****.***~* **********

C******I***A***** ************.*******,.*T******

• • • • • rlU C L IDE M DA R EP O RT***

Detector Name: 7607 Sample Geometry: Soil 3m 90d Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuclide MDA Name (keV) (%) (pCi/gms ) (pCi/gms )

CO-60 1173.22 100.00 2.58E-001 1.97E-001 1332.49 100.00 1.97E-001 CS-137 661.65 85.12 3.11E-001 3.11E-001 EU-152 121.78 28.40 3.07E+000 8.01E-001 244.69 7.49 6.23E+000 344.27 26.50 1.38E+000 443.98 2.81 l.09E+001 778.89 12.74 2.07E+000 867.32 4.16 6.21E+000 964.01 14.40 2.04E+000 1,085.78 10.00 2.45E+000 1112.02 13.30 2.03E+000 1407.95 20.70 8.01E-001 EU-154 123.07 40.50 2.11E+000 6.26E-001 247.94 6.60 6.23E+000 591.81 4.83 6.16E+000 692.41 1.69 1.65E+001 723.30 19.70 1.26E+000 756.87 4.33 5.67E+000 873.19 11.50 2.10E+000 996.32 10.30 *2.16E+000 1004 .76 17.90 1.25E+000 1274.45 35.50 6.26E-001 1596.53 1.85 8.79E+000

+ = Nuclide identified during the nuclide identification

• = Energy line found in the spectrum

> = MDA value not calculated

@ = Half-life too short to be able to perform the decay correction

A Geometry Composer Report Date: Friday, January 14, 2005

Description:

Soil at 3m90dH20 Comment: 3"_H20_Absorber File Name: c:\genie2k\is0csj\,ata\geometry\in-situ\circularplane\

gsm\7607soil_3m h2o.geo Software: ISOCS Template: CIRCULARPLANE, Version: default Detector: 7607 Environment: Temperature= 22C, Pressure= 760 mmHg, Rel.Humidity= 30%

Integration: Convergence= 1.00%, MDRPN= 2A(4) CRPN= 2^(4)

Dimensions (cm):

1. Geometry Compon. dl d2 d3 d4 d5 d6 Material D(g/cm3) R.Conc.

I Side Walls 600.00 none 2 Layer 1 15.00 dirt4 1.70 1.00 3 Layer 2 none 4 Layer 3 none 5 Layer 4 none 6 Layer 5 none 7 Layer 6 none 8 Layer 7 none 9 Layer 8 none 10 Layer 9 none 11 Layer 10 none 12 Absorberl 7.50 water 1. 00 13 Absorber2 none 14 Source-Detector 300.00 Collimator: 50mm-90d new newISOCS 50mm side 90deg collimation_ [large_holecollimator]

List of energies for efficiency curve generation:

59.5 88.0 122.1 165.9 391.7 661.7 898.0 1173.2 1332.5 1836.0 I CIRCULAR PLANE I son

7607-EXC00809.RPT 14-Jan-2005 15:07 Page I of 8

• • • • • • • • • • • • • • • A********* M M****A********* ****** ******A**I******

-**** G A MMA S PECT R UM. A NA LYS I S -***

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ISOCS Report Generator ISOCSAN.TPL 2/26/96 Report Generated On  : 1/14/05 3:07:59 PM Spectrum File Name  : C:\GENIE2K\CAMFILES\Backyard\FROlli-SU9\76 Sample Title  : Excavations Sample Identification  : S004 Sample Type  : EXC Desc. 1 : FRO111-09-1-S004-GS-0000,1" of water Desc. 2 :

Desc. 3 :

Desc. 4 :

Peak Locate Threshold 3.00 Peak Locate Range (in channels) : 50 - 8192 Peak Area Range (in channels) 50 - 8192 Identification Energy Tolerance : 2.000 keV Sample Size 1.000E+000 gm Note: For Point Source, report UNIT - none.

Sample Taken On  : 11/5/04 8:02:53 AM Acquisition Started  : 11/5/04 8:19:35 AM Live Time 1045.0 seconds Real Time 1045.8 seconds Energy Calibration Used Done On  : 6/30/04 Efficiency / Geometry ID ..  : OIL AT 3M90D_1120 Efficiency Calibration Used Done On  : 1/14/05 IIt(-1I05'

7607-EXC00809.RPT 14-Jan-2005 15:07 Page 2 of 8 Peak Locate Analysis Report 1/14/2005 , 3:07:59 PM Page 2

• • • A*K**C*** A T E R E P 0 R T

• • • • • PE AK LO0C A TE R EP O RT***

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Detector Name: 7607 Sample

Title:

Excavations Peak Locate Performed on: 1/14/2005 3:07:55 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 3.00 Peak Centroid Centroid Energy Peak No. Channel Uncertainty (keV) Significance 1 238.84 0.3395 73.02 3.41 2 246.67 0.2196 75.31 6.49 3 278.25 0.2679 85.02 3.50 4 781.65 0.1770 238.69 7.16 5 966.85 0.2199 295.23 4.85 6 1152.77 0.1656 351.98 7.99 7 1342.81 0.2636 410.00 3.51 8 1672.32 0.2102 510.59 4.65 9 1910.06 0.1825 583.16 6.23 10 1995.08 0.1433 609.11 10.14 11 2167.33 0.2610 661.70 3.12 12 2380.47 0.2493 726.76 3.50 13 2984.37 0.1702 911.11 6.42 14 3173.51 0.2013 968.85 5.16 15 3668.63 0.1806 1120.00 5.98 16 4512.78 0.2489 1377.69 3.07 17 4785.10 0.0961 1460.82 18.94 18 5780.55 0.1684 1764.70 5.83 19 7222.82 0.2126 2204.98 3.87

? = Adjacent peak noted Errors quoted at 1.000 sigma

7607-EXC00809.RPT 14-Jan-2005 15:07 Page 3 of B Peak Analysis Report 1/14/05 3:07:59 PM Page 3

• • • • • P EAKX A NA LY S IS R EP OR T***

• I*************I***~***************~*******~*************~**** *****~*****~****

Detector Name: 7607 Sample

Title:

Excavations Peak Analysis Performed on: 1/14/05 3:07:55 PM Peak Analysis From Channel: 50 Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area  % Uncert. Counts M 1 234- 251 238.94 73.02 1.15E+002 47.71% 8.36E+002 m 2 234- 251 246.45 75.31 2.10E+002 28.71% 9.23E+002 3 271- 283 278.25 85.02 9.60E+001 94.72% 7.77E+002 4 775- 787 781.65 238.69 1.83E+002 34.07% 3.15E+002 5 961- 977 966.85 295.23 1.17E+002 47.25% 2.15E+002 6 1144- 1162 1152.77 351.98 1.71E+002 32.86% 1.94E+002 7 1337- 1350 1342.81 410.00 4.06E+001 89.20% 1.06E+002 8 1666- 1683 1672.32 510.59 1.18E+002 38.84% 1.33E+002 9 1903- 1921 1910.06 583.16 1.06E+002 40.00% 1.06E4002 10 1988- 2006 1995..08 609.11 2.36E+002 19.35% 9.16E+001 11 2161- 2175 2167.33 661.70 4.23E+001 65.03% 5.37E+001 12 2374- 2388 2380.47 726.76 3.51E+001 74.10% 4.89E+001 13 2974- 2993 2984 .37 911.11 1.18E+002 28.95% 5.25E+001 14 3166- 3181 3173.51 968.85 4.78E+001 55.72% 4.52E+001 15 3661- 3677 3668.63 1120.00 8.65E+001 34.49% 4.65E+001 16 4506- 4519 4512.78 1377.69 1.80E+001 82.28% 1.40E+001 17 4773- 4796 4785.10 1460.82 8.O1E+002 7.33% 2.4OE+001 18 5770- 5789 5780.55 1764.70 7.83E+001 26.50% 9.73E+000 19 7216- 7229 7222.82 2204.98 1.90E+001 44.97% 0.OOE+000 M = First peak in a multiplet region m - Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXC00809.RPT 14-Jan-2005 15:07 Page 4 of 8 Interference Corrected Activity Report 1/14/05 3:07:59 PM Page 4

• • • • • • • • • • • • • • • • • t********************************************************

• • • • • NUCLIDE IDENTIFICATION REPORT *****

Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (pCi/gm ) Uncertainty ANN 0.993 511.00* 100.00 8.149E-001 41.14%

K-40 1.000 1460.81* 10.67 5.019E+001 10.92%

CS-137 1.000 661.65* 85.12 3.403E-001 66.09%

TL-208 0.736 277.35 6.80 510.84* 21.60 3.773E+000 41.94%

583.14* 84.20 8.619E-001 42.07%

763.13 1.64 860.37 12.46 BI-212 0.537 727.17* 11.80 2.017E+000 75.20%

785.46 1.97 1620.62 2.75 PB-212 0.544 74.81* 10.70 4.151E+001 35.95%

77.11 18.00 87.30 8.00 238.63* 44.60 3.053E+000 37.76%

300.09 3.41 BI-214 0.530 609.31* 44.80 .3.615E+000 23.03%

665.45 1.29 768.36 4.80 806.17 1.12 934.06 3.03 1120.29* 14.80 3.882E+000 35.60%

1155.19 1.64 1238.11 5.86 1280.96 1.44 1377.67* 3.92 3.056E+000 82.75%

1401.50 1.55 1407.98 2.80 1509.23 2.12 1661.28 1.14 1729.59 2.88 1764.49* 15.36 3.449E+000 27.76%

1847.42 2.04 2118.55 1.14 2204.21* 4.86 2.653E+000 4 5.79%

2447.86 1.50 PB-214 0.641 53.23 1.11 74.82* 6.21 7.153E+001 35.51%

77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 4.392E+000 50.16%

7607-EXCOO8O9.RPT 14-Jan-2005 15:07 Page 5 of 8 Interference Corrected Activity Report 1/14/05 3:07:59 PM Page 5 Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (pCi/gm ) Uncertainty PB-214 0.641 351.92* 37.20 3.238E+000 36.87%

• = Energy line found in the spectrum.

Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.30 Errors quoted at 1.960 sigma

7607-EXCO0809.RPT 14-Jan-2005 15:07 Page 6 of 8 Interference Corrected Activity Report 1/14/05 3:07:59 PM Page 6

• • • • • • • I******* ** **** * ** ** * *** ** ** * ******************** *****

• • • I N TER FE R E NCE COR RE C TE D R E P ORT ***

4****************t********************************************************

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pCi/gm ) Uncertainty ANN 0.993 6.2874E-001 54.75%

K-40 1.000 5.0191E+001 10.92%

CS-137 1.000 3.4028E-001 66.09%

TL-208 0.736 8.6187E-001 41.94%

BI-212 0.537 2.0172E+000 75.20%

PB-212 0.544 3.0528E+000 37.57%

BI-214 0.530 3.4144E+000 14.85%

PB-214 0.641 3.5001E+000 29.99%

? - nuclide is part of an undetermined solution X - nuclide rejected by the interference analysis Errors quoted at 1.960 sigma I

7607-ExC00809.RPT 14-Jan-2005 15:07 Page 7 of 8 Interference Corrected Activity Report 1/14/05 3:07:59 PM Page 7 U N I D E N T I F I E D P E A K S

• Peak Locate Performed on: 1/14/05 3:07:55 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty M 1 730 t4 1.1004E-001 47.71 M 3 85.02 1k 9.1849E-002 94.72 7 410.00 3.8805E-002 89.20 - k lDMLnP 1.t1.Lk4I 1 13 911 11 %9 1.1244E-001 28.95 14 988 4.575OE-002 55.72 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXC00809.RPT 14-Jan-2005 15:07 Page a of 8 Nuclide MDA Report 1/14/05 3:07:59 PM Page 8

• • • • • • • • • • • • • • • • • • • • A**********tt***********************************t*****

• • • • • N UC L IDE M DA R EP OR T***

• • • • • • • • • t**~**~*tt*****t********************.********************t******t* **

Detector Name: 7607 Sample Geometry: Soil 3m 90d Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuclide MDA Name (keV) (%) (pCi/gm ) (pci/gm )

CO-60 1173.22 100.00 4.11E-001 2.95E-00l 1332.49 100.00 2.95E-001

+ CS-137 661.65* 85.12 3.51E-001 3.51E-001 EU-152 121.78 28.40 6.71E+000 1.31E+000 244 .69 7.49 1.56E+001 344.27 26.50 3.01E+000 443.98 2.81 2.22E+001 778.89 12.74 3.42E+000 867.32 4.16 9.92E+OOO 964 .01 14.40 3.30E+000 1,085.78 10.00 3.42E+000 1112.02 13.30 3.34E+000 1407.95 20.70 1.31E+000 EU-154 123.07 40.50 4 .66Et000 9.68E-001 247.94 6.60 1.55E+001 591.81 4.83 1.13E+001 692.41 1.69 2.83E+001 723.30 19.70 2.57E+000 756.87 4.33 1.03E+001 873.19 11.50 3.51E+000 996.32 10.30 3.72E+000 1004.76 17.90 2.18E+000 1274.45 35.50 9.68E-001 1596.53 1.85 1.28E+001

+ = Nuclide identified during the nuclide identification

• = Energy line found in the spectrum

> = MDA value not calculated

@ = Half-life too short to be able to perform the decay correction

7607-EXC00795.RPT 14-Jatn-2005 15:09 Page I of 7

,*****A*******************,C*************** A*****************************

• • • • • GA MM A S PE C T RUM A NA LYS I S***

ISOCS Report Generator 3OCSAN.TPL 2/26/96 Report Generated On 1/14/05 3:09:12 PM Spectrum File Name C:\GENIE2K\CAMFILES\Backyard\FROII-SU9\76 Sample Title  : Excavations Sample Identification s073 Sample Type EXC 0 00 Desc. 1 : frOlll-09-1-s073-gs-0 Desc. 2 : 2 " H20 Desc. 3 :

Desc. 4 :

Peak Locate Threshold 3.00 Peak Locate Range (in channels) 50 - 8192 Peak Area Range (in channels) 50 - 8192 Identification Energy Tolerance 2.000 keV Sample Size 1.000E+000 gm Note: For Point Source, report UNIT = none.

Sample Taken On 11/4/04 11:45:19 AM Acquisition Started 11/4/04 12:02:02 PM Live Time 1121.0 seconds Real Time 1121.7 seconds Energy Calibration Used Done On  : 6/30/04 Efficiency / Geometry ID OILAT_3M90D_1120 Efficiency Calibration Used Done On 1/14/05 iInlob

Page 2 of 7 15:09 7607-EXC00795 .PPT 14-Jan-2005 15:09 Page 2 of 7 Peak Locate Analysis Report 1/14/2005 3:09:12 PM Page 2 P E A K L O C A T E R E P O R T Detector Name: 7607 Sample

Title:

Excavations Peak Locate Performed on: 1/14/2005 3:09:08 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 3.00 Peak Centroid Centroid Energy Peak No. Channel Uncertainty (keV) Significance 1 246.15 0.2524 75.22 4.84 2 781.14 0.1595 238.53 9.93 3 792.92 0.2835 242.16 3.59 4 966.55 0.2263 295.14 5.04 5 1108.56 0.2426 338.49 3.60 6 1151.58 0.1589 351.62 9.02 7 1671.41 0.2292 510.31 3.62 8 1907.66 0.1667 582.43 7.83 9 1993.38 0.1566 608.59 8.52 10 2981.48 0.1700 910.23 6.52 11 3169.81 0.1977 967.72 5.49 12 3666.16 0.2282 1119.24 3.78 13 4780.44 0.0961 1459.40 18.84 14 5212.32 0.2558 1591.23 3.20 15 5775.87 0.1882 1763.27 4.67

? = Adjacent peak noted Errors quoted at 1.000 sigma

7607-EXC00795.RPT 14-Jan-2005 15:09 Page 3 of 7 Peak Analysis Report 1/14/05 3:09:12 PM Page 3 P E A K A N A L Y S I S R E P O R T

• • • • • • • • • ~********** ***************************************

Detector Name: 7607 Sample

Title:

Excavations Peak Analysis Performed on: 1/14/05 3:09:08 PM Peak Analysis From Channel: 50 Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Ar ea  % Uncert. Counts 1 234- 256 246.15 75.22 4.78E+002 30.19% 1.27E+003 M 2 772- 803 781.11 238.53 2.72E+002 16.05% 3.40E+002 m 3 772- 803 793.01 242.16 8.34E+001 38.81% 3.28E+002 4 961- 973 966.55 295.14 5.87E+001 78.51% 1.87E+002 5 1097- 1116 1108.56 338.49 9.24E+001 58.74% 1.93E+002 6 1144- 1162 1151.58 351.62 2.02E+002 26.78% 1 .65E+002 7 1662- 1684 1671.41 510.31 1.38E+002 33.61% 1.09E+002 8 1898- 1915 1907.66 582.43 1.29E+002 31.71% 9.41E+001 9 1985- 2004 1993.38 608:59 1. 87E+002 21.37% 6.53E+001 10 2974- 2990 2981,48 910.23 9.58E+001 32.12% 4 .82E+001 11 3163- 3178 3169.81 967.72 5.87E+001 44.70% 3.93E+001 12 3660- 3673 3666.16 1119.24 3.50E+001 82. 09% 6.50E+001 13 4768- 4792 4780.44 1459.40 8.47E+002 6.98% 1.56E+001 14 5206- 5219 5212.32 1591.23 1. 17E+001 86.30% 5.29E+000 15 5767- 5785 5775.87 1763.27 6. 63E+001 26.87% 4 .75E+000 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXC00795.RPT 14-Jan-2005 15:09 Page 4 of 7 Interference Corrected Activity Report 1/14/05 3:09:12 PM Page 4

• • • • • • • • • • • • • • • • • • • t ******************************************~***********

• • • • • 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

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB

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

Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (C) (pCi/gm ) Uncertainty ANN 0.981 511.00* 100.00 8.852E-001 36.24%

K-40 0.923 1460.81* 10.67 4.950E+O0l 10.69%

TL-208 0.721 277.35 6.80 510.84* 21.60 4.098E+000 37.15%

583.14* 84.20 9.786E-00l 34.28%

763.13 1.64 860.37 12.46 PB-212 0.544 74.81* 10.70 8.823E+001 37.14%

77.11 18.00 87.30 8.00 238.63* 44.60 4.238E+000 22.86%

300.09 3.41 BI-214 0.393 609.31* 44.80 2.662E+000 24.76%

665.45 1.29 768.36 4.80 806.17 1.12 934.06 3.03 1120.29* 14.80 1.465E+000 82.57t 1155.19 1.64 1238.11 5.86 1280.96 1.44 1377.67 3.92 1401.50 1.55 1407.98 .2.80 1509.23 2.12 1661.28 1.14 1729.59 2.88 1764.49* 15.36 2.721E+000 28.10%

1847.42 2.04 2118.55 1.14 2204.21 4.86 2447.86 1.50 PB-214 0.791 53.23 1.11 74.82* 6.21 1.520E+002 36.72%

77.11 10.50 87.30 4.67 241.98* 7.49 7.711E+000 42.22%

295.21* 19.20 2.057E+000 80.29%

351.92* 37.20 3.555E+000 31.57%

AC-228 0.312 89.95 2. 10 93.35 3.50 105.00 1.60

7607-ExC00795.RPT 14-Jan-2005 15:09 Page 5 of 7 Interference Corrected Activity Report 1/14/OS 3:09:12 PM Page 5 Nuclide Id Energy Yield Activity Activity Name Confidence (keV) ,(%) (pCi/gm ) Uncertainty AC-228 0.312 129.08 2.80 209.28 4.40 270.23 3.60 327.64 3.20 338.32* 11.40 5.343E+000 72.53%

409.51 2.13 463.00 4.40 794.70 4.60 835.50 1.75 911.07* 27.70 2.143E+000 34.85%

964.60 5.20 969.11* 16.60 2.190E+000 50.59%

1588.00 3.50

• = Energy line found in the spectrum.

Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.30 Errors quoted at 1.960 sigma i

7607-EXC00795 .RPT 14-Jan-2005 15:09 Page 6 of 7 Interference Corrected Activity Report 1/14/05 3:09:12 PM Page 6

• • • • • • • • • • • *****t*** ******** *****************************************

• • • I NT E RFE R EN CE C OR RE C TED R E P ORT ***

~********************~*****************************

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pCi/gm ) Uncertainty ANN 0.981 6.7381E-001 48.80%

K-40 0.923 4.9499E+001 10.69%

TL-208 0.721 9.7862E-001 34.13%

PB-212 0.544 4.2379E+000 22.54%

BI-214 0.393 2.5091E+000 18.39%

PB-214 0.791 3.4303E+000 26.03%

AC-228 0.312 2.2368E+000 27.34%

• ? - nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis Errors quoted at 1.960 sigma U N I D,E N T I F I E D P E A K S

• Peak Locate Performed on: 1/14/05 3:09:08 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty 14 1591.23TI 4CqAY"L- 1.0442E-002 86.30 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EPxC00795.RPT 14-Jan-2005 15:09 Page 7 of 7 Nuclide MDA Report 1/14/05 3:09:12 PM Page 7

• • • • • • • • • • ~*~****~*~***** **********i***~**********~**I **~*I***~*********~****

N U C L I D E M DA R E PO R T Detector Name: 7607 Sample Geometry: Soil 3m 90d Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuciide MDA Name (keV) (M) (pCi/gm ) (pCi/gm )

CO-60 1173.22 100.00 4.01E-001 2.96E-001 1332.49 100.00 2.96E-001 CS-137 661.65 85.12 5.33E-001 5.33E-001 EU-152 121.78 28.40 6.30E+000 1.34E+000 244.69 7.49 1.47E+001 344.27 26.50 2.87E+000.

443.98 2.81 2.07E+001 778.89 12.74 3.38E+000.

867.32 4.16 9.38E+000 964.01 14.40 3.04E+000 1085.78 10.00 3.44E+000 1I12.02 13.30 3.29E+000 1407.95 20.70 1.34E+000 EU-154 123.07 40.50 4.37E+000 8.99E-001 247.94 6.60 1.48E+001 591.81 4.83 9.45E+000 692.41 1.69 2.55E+001 723.30 19.70 2.33E+000 756.87 4.33 1.02E+001 873.19 11.50 3.36E+000 996.32 10.30 3.24E+000 1004.76 17.90 1.80E+000 1274.45 35.50 8.99E-001 1596.53 1.85 1.14E+001

+ = Nuclide identified during the nuclide identification

• = Energy line found in the spectrum

• = MDA value not calculated

= Half-life too short to be able to perform the decay correction

7607-Z.XC00796.RPT 14-Jan-2005 15:14 Page 1 of 6 G A M M A S P E C T R U M A NA-L Y SI S

• • • • • • • • • • • • • • • • • • • • • &4******************************************.***** ***

ISOCS Report Generator ISOCSAN.TPL 2/26/96 Report Generated On  : 1/14/05 3:14:18 PM Spectrum File Name C:\GENIE2K\CAMFILES\Backyard\FRO111-SU9\76 Sample Title Excavations Sample Identification  : s074 Sample Type EXC Desc. 1 : frO111-09-1-sO74-gs-0000 Desc. 2 : 2" H20 Desc. 3 :

Desc. 4 :

Peak Locate Threshold 3.00 Peak Locate Range (in channels)  : 50 - 8192 Peak Area Range (in channels) 50 - 8192 Identification Energy Tolerance  : 2.000 keV Sample Size 1.OOOE+000 gm Note: For Point Source, report UNIT - none.

Sample Taken On  : 11/4/04 12:46:38 PM Acquisition Started I  : 11/4/04 12:46:38 PM Live Time 1000.0 seconds Real Time 1000.6 seconds Energy Calibration Used Done On  : 6/30/04 Efficiency / Geometry ID  : OIL AT 3M90D_1120 Efficiency Calibration Used Done On  : 1/14/05 I1111 05,

7607-EXC00796.RPT 14-Jan-2005 15:14 Page 2 of 6 Peak Locate Analysis Report 1/14/2005 3:14:18 PM Page 2

• • • • • • • • • • • A****A***i**** ************************************************

• • • • • P EAK L OC AT E R E PO RT***

• • • • • • • • ***I ************** ******** **************************** ***I*******

Detector Name: 7607 Sample

Title:

Exca'vations Peak Locat e Performed on: 1/14/2005 3:14:17 PM Peak Locat,e From Channel: 50 Peak Locat e To Channel: 8192 Peak Searc]h Sensitivity: 3.00 Peak Centroid C,entroid Energy Peak No. Channel Un certainty (keV) Significance 1 246.29 0.2398 75.26 5.05 2 781.56 0.2121 238.66 5.16 3 966.43 0.2435 295.10 3.79 4 1107.07 0.2822 338.03 3.20 5 1151.72 0.2051 351.66 5.12 6 1908.01 0.1976 582.53 5.46 7 1993.27 0.1612 608.56 i7.67 8 2981.71 0.1898 910.30 5.23 9 3665.43 0.2309 1119.02 3.28 10 4507.41 0.2492 1376.05 3.18 11 4780.31 , 0.1084 1459.36 14.16 12 5774.25 0.1943 1762.78 4.39

?= Adjacent peak noted Errors quoted at 1.000 sigma

7607-EXC00796.RPS 14-Jan-2005 15:14 Page 3 of 6 Peak Analysis Report 1/14/05 3:14:18 PM Page 3 P E A K A N A L Y S I S R E P O R T

• • • .*~********************************************************* *** **********

Detector Name: 7607 Sample

Title:

Excavations Peak Analysis Performed on: 1/14/05 3:14:17 PM Peak Analysis From Channel: so Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net 1 Peak Net Area Continuum No. start end centroid (keV) Ar .a  % Uncert. Counts 1 234- 251 246.29 75.26 2.86E+002 41.27% 1.02E+003 2 769- 793 781.56 238.66 2.28E+002 39.38% 4.51E+002 3 958- 977 966.43 295.10 1.19E+002 46.67% 1.96E+002 4 1102- 1114 1107.07 338.03 3.35E+001 117.63% 1.41E+002 5 1139- 1163 1151.72 351.66 1.40E+002 45.06% 2.19E+002 6 1899- 1915 1908.01 582.53 8.30E+001 43.78% 8.30E+001 7 1984- 2003 1993.27 608.56 1.67E+002 24.47% 7.63E+001 8 2975- 2990 2981.71 910.30 1.04E+002 28.78% 4 .22E+001 9 3656- 3675 3665.43 1119.02 6.58E+001 43.82% 4 .12E+001 10 4501- 4514 4507.41 1376.05 2.23E+001 56.13% 6.69E+000 11 4765- 4793 4780.31 1459.36 6.72E+002 8.10% 2.15E+001 12 5766- 5781 5774.25 1762.78 5.29E+001 32.80% 8.07E+000 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

I

7607-EXC00796.RPT 14-Jan-2005 15:14 Page 4 of 6 Interference Corrected Activity Report 1/14/05 3:14:18 PM Page 4

• • • • • • • • • • • • • • • ii**********.**********i****~************~**,***t*******~*****

• • • • • 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

Title:

Excavations Nuclide Library Used: C:\GErNIE2K\CAMFILES\Backyard.NLB

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

Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (C) (pCi/gm ) Uncertainty K-40 0.919 1460.81* 10.67 i.404E+001 9.48%

TL-208 0.455 277.35 6.80 510.84 21.60 583.14* 84.20 6.984E-001 44.61%

763.13 1.64 860.37 12.46 PB-212 0.543 74.81* 10.70 5.648E+001 52.69%

77.11 18.00 87.30 8.00 238.63* 44.60 3.906E+000 42.12%

300.09 3.41 BI-214 0.434 6,09.31* 44.80 2.631E+000 25.68%

665.45 1.29 768.36 4.80 806.17 1.12 934.06 3.03 1120.29* 14.80 3.091E+000 44.20%

1155.19 1.64 1238.11 5.86 1280.96 1.44 1377.67* 3.92 3,970E+000 56.45%

1401.50 1.55 1407.98 2.80 1509.23 2.12 1661.28 1.14 1729.59 2.88 1764.49* 15.36 2.431E+000 33.55%

1847.42 2.04 2118.55 1.14 2204.21 4.86 2447.86 1.50 PB-214 0.638 53.23 1.11 74.82* 6.21 9.732E+001 52.40%

77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 4.644E+000 49.30%

351.92* 37.20 2:775E+000 47.44%

• Energy line found in the spectrum.

Energy tolerance used was 2.000 Nuclide confidence index threshold . 0.30 Errors quoted at 1.960 sigma

7607-ExC00796.RPT 14-Jan-2005 15:14 Page 5 of 6 Interference Corrected Activity Report 1/14/05 3:14:18 PM Page 5

• • * *1* * ********* ** ** ** * * * * * * ****** * * * ***** * * ******* * * * * * *** * * * * *********

• • • • • I N T E R FE R E N C E C O R R E C T E D R E PO R T . *****

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pci/gm ) Uncertainty K-40 0.919 4.4044E+001 9.48%

TL-208 0.455 6.9840E-001 44.61%

PB-212 0.543 3.9060E+000 41.95%

BI-214 0.434 2.6789E+000 17.74%

PB-214 0.638 3.2398E+OO0 35.23%

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis Errors quoted at 1.960 sigma

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

• Peak Locate Performed on: .1/14/05 3:14:17 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty 3.3494E-002 117.63 1.0377E-001 28.78 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

Page 6 of 6 14-Jarx-2005 15:14 7 607-EXC00796.RPT 7607-EXC00796.RPT 14-Jnn-2005 15:14 Page 6 of 6 Nuclide MDA Report 1/14/05 3:14:18 PM Page 6

• • • • • N UCL I DE M DA R EP OR T***

• ********i******** **********************************************************

Detector Name: 7607 Sample Geometry: Soil 3m 90d Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuclide MDA Name (keV) (%) (pCi/gm ) (pci/gm )

CO-60 1173.22 100.00 3.95E-001 2.90E-001 1332.49 100.00 2.90E-001 CS-137 661.65 85.12 5.73E-001 5.73E-00l EU-152 121.78 28.40 6.63E+000 1.33E+000 244.69 7.49 1.51E+001 344.27 26.50 3.03E+000 443.98 2.81 2.12E+001 778.89 12.74 3.46E+000 867.32 4.16 1. OlE+00l 964 .01 14.40 3.25E+000 Ip85.78 10.00 3.89E-000 1112.02 13.30 3.28E+000 1407.95 20.70 1. 33E+000 EU-154 123.07 40.50 4.57E+000 9.52E-001 247.94 6.60 1.53E+001 591.81 4 .83 1. 04E+001 692.41 1.69 2.84E+001 723.30 19.70 2.43E+000 756.87 4.33 1.OOE+001 873.19 11.50 3.36E+000 996.32 10.30 ,3.77E+000 1004.76 17.90 2.20E+000 1274.45 35.50 9.52E-001 1596.53 1.85 1.20E+001

+ = Nuclide identified during the nuclide identification

• = Energy line found in the spectrum

> = MDA value not calculated

@ = Half-life too short to be able to perform the decay correction

a.ieometry uomposer Keport Date: Friday, January 14, 2005

==

Description:==

Soilat_3m90d H20 Comment: test w_3inH20_abs File Name: c:\genie2k\isocs\data\geometry\in-situ\circular_plane\

gsm\soilat_3m90d'3inh20(7722).geo Software: ISOCS Template: CIRCULARPLANE, Version: default Detector: 7722 Environment: Temperature= 22-C, Pressure= 760 mmHg, Rel.Humidity= 30%

Integration: Convergence= 1.00%, MDRPN= 2^(4) CRPN= 2^(4) imensions (cm):

1. Geometry Compon. dl d2. d3 d4 d5 d6 Material D(Q/cm3) R.Conc.

1 Side Walls 600. 00 none 2 Layer 1 15.00 dirt4 1.70 1.00 3 Layer 2 none 4 Layer 3 none 5 Layer 4 none 6 Layer 5 none 7 Layer 6 none 8 Layer 7 none 9 Layer 8 none 10 Layer 9 none 11 Layer 10 none 12 Absorberl 7.50 water 1. 00 13 Absorber2 none 14 Source-Detector 300.00 Collimator: 50mm-90d new newISOCS_5Ommside 90deg collimation_ [large hole_ collimator]

List of energies for efficiency :curve generation:

59.5 88.0 122.1 165.9 391.7. 661.7 898.0 1173.2 1332.5 1836.0 I I ...--it 4W-L -.

... __.. -1 I

Y k _

n 121r_ 13.1 Dt 14.1 14.3 IG (3'I -A4.2 R 14.2

- U - I t4.... .. n venhis,

7722-EXC01225.RPT 14-Jan-2005 15:35 Page I of 7 GAMMASPECU*M*****A*************

• • • • • GA M MA S PE C T RUM A NA LYS I S***

• • • • ,********** **** ********* *********************~****************** *******

ISOCS Report Generator ISOCSAN.TPL 2/26/96 Report Generated On  : 1/14/05 3:35:53 PM Spectrum File Name  : C:\GENIE2K\CAMFILES\Backyard\FR0111-SU9\77 Sample Title  : Excavation Sample Identification  : S078 Sample Type  : Exc Desc. 1 : FR0111-09-1-S078-GS-0000,1" of water Desc. 2 :

Desc. 3 :

Desc. 4 :

Peak Locate Threshold 3.00 Peak Locate Range (in channels) : 50 - 8192 Peak Area Range (in channels) 50 - 8192 Identification Energy Tolerance : 2.000 keV Sample Size  : 1.000E+000 gm Note: For Point Source, report UNIT = none.

Sample Taken On  : 11/4/04 3:52:34 PM Acquisition Started  : 11/4/04 3:52:34 PM Live Time 1000.0 seconds Real Time 1000.7 seconds Energy Calibration Used Done On  : 4/29/04 Efficiency / Geometry ID  : OILAT_3M90D_1120 Efficiency Calibration Used Done On  : 1/14/05 If riI

Datasource  : C:\GENIE2K\CAMFILES\Backyard\FRO111-SU9\7722-EXC01225.CNF Sample ID  : S078 Iterations  : 4 Sample Date  : 11/04/04 3:52:34 PM Chi-square  : 1.46 Fit Engine  : Sum / Non-Linear LSQ Fit Region Start : 660.002 keV Bkgnd Type  : Step Region End  : 662.750 keV Nbr Energy Centroid Area %Error FWHM Ratio

.1 661.219 2165.98 60.94 15.83 1.426 1.00 C

0 U

n t

S 665 3.0 4 l - l l l -

1. 0I 0 M U R 0 C

0.0 S

d

-1. 0 M

.0 I00.

0U nJ -

J~657 658 659 660 661 662 663 664 665

7722-EXCC1225.RPT 14-Jan-2005 15:35 Pago 2 of 7 Peak Locate Analysis Report 1/14/2005 3:35:53 PM Page 2

• • P*A***.L*A**T* E .****** *******T

• • • • • PE AK L OC A TE R EP OR T***

• • • ~**i***** **i**S********** ***~* **************t A***~*i*

Detector Name: 7722 Sample

Title:

Excavation Peak Locate Performed on: 1/14/2005 3:34:25 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 3.00 Peak Centroid Centroid Energy Peak No. Channel Uncertainty (keV) Significance 1 238.86 0.3469 72.94 4.27 2 245.81 0.2977 75.09 4.49 3 781.06 0.2415 238.47 5.97 4 966.34 0.3212 295.03 3.78 5 1152.37 0.2356 351.81 6.25 6 1908.34 0.2381 582.57 5.20 7 1993.96 0.1987 608.71 7.49 8 2165.81 0.2617 661.22 4.27 9 2381.14 0.2941 726.89 3.39 10 2982.19 0.2296 910.36 4.76 11 3171.72 0.2735 968.22 3.66 12 3667.76 0.2793 1119.63 3.21 13 4363.78 0.2790 1332.09 3.68 14 4783.37 0.1220 1460.17 15.01 15 5779.45 0.2218 1764.22 4.28

? = Adjacent peak noted Errors quoted at 1.000 sigma

7722-EXC01225.RPT 14-Jran-2005 15:35 Page 3 of 7 Peak Analysis Report 1/14/05 3:35:54 PM Page 3 P E A K A N A L Y S I S R E P O R T

• • • • • .*********************************,I*** **** *********~***

• ~**.***********

Detector Name: 7722 Sample

Title:

Excavation Peak Analysis Performed on: 1/14/05 3:34:25 PM Peak Analysis From Channel: 50 Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area  % Uncert. Counts M 1 235- 251 238.76 72.94 1. 13E+002 33.82% 4 .98E+002 m 2 235- 251 245.81 75.09 2. 08E+002 21.05% 6.54E+002 3 775- 788 781.06 238.47 1. 88E+002 32.74% 2.87E+002 4 959- 985 966.34 295.03 7.35E+001 101.52% 3.10E+002 5 1144- 1158 1152.37 351.81 1.38E+002 33.00% 1.38E+002 6 1902- 1915 1908.34 582.57 9.50E+001 31.83% 5.20E+001 7 1990- 1999 1993.96 608.71 1.39E+002 22.17% 4.69E+001 M 8 2162- 2171 2165.98 661.22 6.09E+001 31.03% 3.21E+001 9 2375- 2386 2381.14 726.89 3.93E+001 50.32% 2.47E+001 10 2976- 2990 2982,.19 910.36 8.83E+001 33.15% 4 .67E+001 11 3165- 3179 3171.72 968.22 4.99E+001 52.27% 4 .41E+001 12 3660- 3674 3667.76 1119.63 4.71E+001 49.01% 3.19E+001 13 4359- 4369 4363.78 1332.09 1.34E+001 104.80% 1.56E+001 14 4773- 4794 4783.37 1460.17 6.70E+002 7.79% 1.07E+001 15 5771- 5787 5779.45 1764.22 5.47E+001 29.70% 4.31E+000 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7722-EXCO1225.RPT 14-Jan-2005 15:35 Page 4 of 7 Interference Corrected Activity Report 1/14/05 3:35:54 PM Page 4

• • • • • 21 U C L I D E I D E N T I F I C A T I O N R E P O R T *****

Sample

Title:

Excavation Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB

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

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

Nuclide Id Energy Yield Activity Activity Name Confidence (keV) C%) (pCi/gm ) Uncertainty K-40 0.984 1460.81* 10.67 4.359E+001 11.23%

CS-137 0.993 661.65* 85.12 5.146E-001 33.19%

TL-208 0.455 277.35 6.80 510.84 21.60 583.14* 84.20 8.150E-001 34.39%

763.13 1.64 860.37 12.46 BT-212 0.539 727.17* 11.80 2.365E+000 51.91%

785.46 1.97 1620.62 2.75 PB-212 0.542 74.81* 10.70 4 .259E+001 30.19%

,77.11 18.00 87.30 8.00 238.63* 44.60 3.329E+000 36.57%

300.09 3.41 BI-214 0.404 609.31* 44.80 2.238E+000 25.45%

665.45 1.29 768.36 4.80 806.17 1.12 934.06 3.03 1120.29* 14.80 2.186E+000 49.79%

1155.19 1.64 1238.11 5.86 1280.96 1.44 1377.67 3.92 1401.50 1.55 1407.98 2.80 1509.23 2.12 1661.28 1.14 1729.59 2.88 1764.49* 15.36 2.548E+000 30.82%

1847.42 2.04 2118.55 1.14 2204.21 4.86 2447.86 1.50 PB-214 0.639 53.23 1.11 74.82* 6.21 7.339E+001 29.67%

77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 2.925E+000 102.91%

351.92* 37.20 2.754E+000 37.00%

7722-E=CD1225.RPT 14-Jan-2005 15:35 Page 5 of 7 Interference Corrected Activity Report . 1/14/05 3:35:54 PM Page 5 Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (pCi/gm ) Uncertainty

• = Energy line found in the spectrum.

Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.30 Errors quoted at 1.960 sigma I

7722-ExC01225.RPT 14-Jan-2005 15:35 Page 6 of 7 Interference Corrected Activity Report 1/14/05 3:35:54 PM Page 6

• • • • • • I* ** ** * ****** * * * ******* * ** **** *** * *** ************** ** ***********

• • • • • I NT ER FE R EN CE C OR RE C TED R EP O RT *****

• • * ******* ***I*****}*** * ******** * ****** ** * *********** ******** * *** ****** **

• Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pCi/gm ) Uncertainty K-40 0.984 4 .3592E+001 11.23%

CS-137 0.993 5.1457E-001 33.19%

TL-208 0.455 8.1504E-001 34.39%

BI-212 0.539 2.3647E+000 51.91%

PB-212 0.542 3.3291E+000 36.37%

BI-214 0.404 2.3210E+000 18.30%

PB-214 0.639 2.7717E+000 34.82%

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis Errors quoted at 1.960 sigma

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

• Peak Locate Performed on: 1/14/05 3:34:25 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty M 1 72.94 1.1256E-001 33.82 10 910.36 8.8278E-002 33.15 11 968.22 4.9926E-002 52.27 13 1332.09 1.3414E-002 104.80 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7722-EXCO1225.RPT 14-Jan-2005 15:35 Page 7 of 7 Nuclide MDA Report 1/14/05 3:35:54 PM Page 7

• • • • • NU C L IDE M DA R EP OR T***

• • • • • • • • • • • • • • .k*************~**********************************************

Detector Name: 7722 Sample Geometry: Soil 3m 90d Sample

Title:

Excavation Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuclide MDA Name (keV) (%) (pCi/gm ) (pCi/gm )

Co-60 1173.22 100.00 3.19E-001 2.73E-001 1332.49 100.00 2.73E-001

+ CS-137 661.65* 85.12 2.45E-001 2.45E-001 EU-152 121.78 28.40 4.86E+000 1.09E+000 244.69 7.49 1.03E+001 344.27 26.50 1.99E+000 443.98 2.81 1.66E+001 778.89 12.74 2.77E+000 867.32 4.16 7.92E+000 964.01 14.40 2.89E+000 1085.78 10.00 2.86E+000 1112.02 13.30 2.32E+000 1407.95 20.70 1.09E+000 EU-154 123.07 40.50 3.42E+000 7.23E-001 247.94 6.60 1.07E+00l 591.81 4.83 8.45E+000 692.41 1.69 2.36E+001 723.30 19.70 2.08E+000 756.87 4.33 8.63E+000 873.19 11.50 2.89E+000 996.32 10.30 3.07E+000 1004 .76 17.90 1.80E+000 1274.45 35.50 7.23E-001 1596.53 1.85 1.04E+001

+ = Nuclide identified during the nuclide identification

• = Energy line found in the spectrum

> = MDA value not calculated 0 = Half-life too short to be able to perform the decay correction

7607-EXCOOB0O.RPT 14-Jan-2005 15:18 Page I of 7

• • • • A*********************A******** **************I**********************

-****G A MMA S PE C TR UM A NAL Y SI S***

• • • ~**************~*i* ****~*~***********~***** ******************** ********

ISOCS Report Generator ISOCSAN.TPL 2/26/96 Report Generated On  : 1/14/05 3:18:24 PM Spectrum File Name  : C:\GENIE2k\CAMFILES\Backyard\FRO111-SU9\76 Sample Title  : Excavations Sample Identification  : S079 Sample Type  : EXC Desc. 1 : FRO111-09-1-S079-GS-0000, 3" water

• Desc. 2 :

Desc. 3 Desc. 4 Peak Locate Threshold 3.00 Peak Locate Range (in channels) : 50 - 8192 Peak Area Range (in channels) 50 - 8192 Identification Energy Tolerance : 2.000 keV Sample Size 1.000E+000 gm Note: For Point Source, report UNIT F none.

Sample Taken On  : 11/4/04 2:34:09 PM Acquisition Started  : 11/4/04 2:34:09 PM Live Time 1000.0 seconds Real Time 1000.7 seconds Energy Calibration Used Done On  : 6/30/04 Efficiency / Geometry ID.  : OIL AT 3M90D H20 Efficiency Calibration Used Done On  : 1/14/05 ilnro:

Datasource  : C:\GENIE2k\CAMFILES\Backyard\FR0111-SU9\7607-EXC00800.CNF Sample ID  : S079 Iterations  : 20 Sample Date  : 11/04/04 2:34:09 PM Chi-square  : 0.70 Fit Engine  : Sum / Non-Linear LSQ Fit Region Start : 659.153 keV Bkgnd Type  : Step Region End  : 662.206 keV Nbr Energy Centroid Area %Error FWHM Ratio 1 660.534 2163.52 30.56 26.26 0.962 0.45 16 _ _ _ i_ _ _ _ _ _

14' 12 10-t S ° -

657 658 659 660 66 62 663 664 665 3.0-2.0-R 1.0 e

d0.0 -

.1.0 - U---

-2.0 657 658 659 660 661 662 663 664 665

Page 2 of 7 14-Jar3-2005 15:18 7607-EXCOQeQO .RPT 7607-EXCOOBO0.RPT 14-Jan-2005 15:18 Paige 2 of 7 Peak Locate Analysis Report 1/14/2005 3:18:24 PM Page 2 PE A K L O C A T E R E P O R T Detector Name: 7607 Sample

Title:

Excavations Peak Locate Performed on: 1/14/2005 3:17:02 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 3.00 Peak Centroid Centroid Energy Peak No. Channel Uncertainty (keV) Significance 1 246.02 0.2279 75.18 6.16 2 781.21 0.1931 238.56 6.97 3 966.10 0.2105 295.00 5.83 4 1151.56 0.1828 351.61 7.17 5* 1671.84 0.2109 510.44 .4.09 6 1908.25 0.1868 582.61 6.81 7 1993.19 0.1650 608.54 7.86 8 2163.61 0.2441 660.53 3.88 9 2981.16 0.1979 9101i3 4.99 10 3170.70 0.2165 967 99 4.46 11 3665.67 0.1946 1119.09 5.39 12 4780.08 0.1029 1459.29 16.69 13 5212.10 0.2277 1591.17 3.67 14 5774.74 0.1893 1762.93 5.07

? 8 Adjacent peak noted Errors quoted at 1.000 sigma

. i .

7607-ExC00800.RPT 14-Jan-2005 15:18 Page 3 of 7 Peak Analysis Report 1/14/05 3:18:24 PM Page 3 P E A K A N A L Y S I S R E P O R T

• 1***********************************I*****************I*****I**I****I******

Detector Name: 7607 Sample

Title:

Excavations Peak Analysis Performed on: 1/14/05 3:17 02 PM Peak Analysis From Channel: 50 Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area  %-Uncert. Counts 1 242- 251 246.02 75.18 9.61E+001 81.15% 6.57E+002 2 770- 787 781.21 238.56 1.58E+002 42.43% 3.13E+002 3 959- 973 966.10 295.00 6.68E+001 67.86% 1.62E+002 4 1145- 1164 1151.56 351.61 1.21E+002 43.67% 1.72E+002 5 1660- 1680 1671.84 510.44 7.49E+001 64.18% 1.43E+002 6 1902- 1916 1908.25 582.61 8.23E+061 38.63% 6.17E+001 7 1984- 2001 1993.19 608.54 1.1OE+002 36.22% 9.10E+001 M 8 2159- 2169 2163.52 660.53 3.06E+001 51.47% 3.50E+001 9 2973- 2989 2981.16 910.13 8.09E+001 32.16% 3.01E+001 10 3165- 3180 3170,70 967.99 4.66E+001 54.73% 3.94E+001 11 3659- 3673 3665.67 1119.09 4.17E+O01 55.23% 3.33E+001 12 4769- 4791 4780.08 1459.29 5.90E+002 8.72% 2.54E+001 13 5206- 5219 5212.10 1591.17 2.05EO001 52.64% 3.50E+000 14 5768- 5781 5774.74 1762.93 4.05E+001 34.27% 3.50E+000 M e First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-ExC00800.RPT 14-Jan-2005 15:18 Page 4 of 7 Interference Corrected Activity Report .1/14/05 3:18:24 PM Page 4

• • • • • NUCLIDE IDENTIFICATION REPORT *****

Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) .(pCi/gm Uncertainty ANN 0.988 511.00* 100.00 5.385E-001 65.60%

K-40 0.912 1460.81* 10.67 3.860E+001 11. 90%

CS-137 0.951 661.65* 85.12 2.567E-001 52.80%

TL-208 0.728 277.35 6.80 510.84* 21.60 2.493E+000 66.10%

583.14* 84.20 7.002E-001 40.76t 763.13 1.64 860.37 12.46 PB-212 0.544 74.81* 10.70 1.992E+001 83.98%

77.11 18.00 87.30 8.00 238.63* 44.60 2.766E+000 45.45%

300.09 3.41 BI-214 0.385 609.31* 44.80 1.758E+000 38.32%

665.45 1.29 768.36 4.80 806.17 1.12 934.06 3.03 1120.29* 14.80 .1.953E+000 55.93%

1155.19 1.64 1238.11 5.86 1280.96 1.44 1377.67 3.92 1401.50 1.55 1407.98 2.80 1509.23 2.12 1661.28 1.14 1729.59 2.88 1764.49* 15.36 1.865E+000 35.24%

1847.42 2.04 2118.55 1.14 2204.21 4.86 2447.86 1.50 PB-214 0.639 53.23 1.11 74.82* 6.21 3.433EtOOl 83.80%

77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 2.622E+000 69.91%

351.92* 37.20 .2.390E+000 46.76%

• = Energy line found in the spectrum.

Energy tolerance used was 2.000 Nuclide confidence index threshold - 0.30 Errors quoted at 1.960 sigma

7607-EXCOO800.RPT . 14-Jan-2005 15:18 Page 5 of 7 Interference Corrected Activity Report 1/14/05 3:18:24 PM Page 5

7607-EXC00800.RPT 14-Jan-2005 15:18 Page 6 of 7 Interference Corrected Activity Report 1/14/05 3:18:24 PM Page 6

• • • • • • • ***I** * ********** ***** ***************I************D** ********

• • • • • I N TER F ER E NCE C O RR EC TED R EP ORT *****

• *I****** ***** ****,****** ***.**I**** ************************I** *********

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pCi/gm ) Uncertainty ANN 0.988 3.8729E-001 92.58%

K-40 0.912 3.8603E+001 11.90%

CS-137 0.951 2.5667E-001 52.80%

TL-208 0.728 7.0022E-001 40.63%

PB-212 0.544 2.7656E+000 45.29%

BI-214 0.385 1.8345E+000 23.55%

PB-214 0.639 2.4532E+000 38.90%

? - nuclide is part of an undetermined solution x nuclide rejected by the interference analysis Errors quoted at 1.960 sigma U N I D,E N T I F I E D P E A X S Peak Locate Performed on: 1/14/05 3:17:02 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty 9 910.131i 8.0914E-002 32.16 10 967.99I 6 4.6605E-002 54.73 13 1591.171tZ dCkdAt- 2.0500E-002 52.64 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXCOOD0O.FPrP 14-Jan-2005 15:18 Page 7 of 7 Nuclide MDA Report 1/14/OS 3:18:24 PM Page 7

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • t****I**********i*********************

• • • • • N UC LI DE M DA R EP OR T***

Detector Name: 7607 Sample Geometry: Soil 3m 90d Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMPILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuclide MDA Name (keV) (t) (pCi/gm ) (pCi/gm )

CO-60 1173.22 100.00 3.70E-001 2.75E-001 1332.49 100.00 2.75E-001 CS-137 661.65* 85.12 2.54E-0Ol 2.54E-00l EU-152 121.78 28.40 6.50E+000 1.27E+000 244.69 7.49 1.42E+O01 344.27 26.50 2.92E+O00 443.98 2.81 2.13E+001 778.89 12.74 3.40E+O00 867.32 4.16 1.02E+O01 964.01 14.40 3.30E+000 1085.78 10.00 3.59E+000 1112.02 13.30 3. 15E+000 1407.95 20.70 1.27E+000 EU-154 123.07 40.50 4.49E+OOO 9.68E-001 247.94 6.60 1.40E+001 591.81 4.83 9.64E+000 692.41 1.69 2.74E+001 723.30 19.70 2.36E+000 756.87 4.33 9.94E+000 873.19 11.50 3.47E+000 996.32 10.30 3.72E+000 1004.76 17.90 2.02E+000 1274.45 35.50 9.68E-0.01 1596.53 1.85 1.33E+001

+ - Nuclide identified during the nuclide identification

• = Energy line found in the spectrum

> = MDA value not calculated 0 = Half-life too short to be able to perform the decay correction

Pago 1 of 6 14-Jaxi-2005 15:38 7722-E1C01222.RPT 7722-EXC01222.R.PT 14-Jan-2005 15:38 Page I of 6

• A**M*M*****A**E*****C*******M************************************ ****

• • • • • GA M MA SPE CT R UM, A NA L YSI S***

• • • • • • • • • • ****.** ************** ******* ** **~********************* *** **** ****

ISOCS Report Generator ISOCSAN.TPL 2/26/96 Report Generated On  : 1/14/05 3:38:47 PM Spectrum File Name  : C:\GENIE2K\CAMFILES\Backyard\FRO1l1-SU9\77 Sample Title  : Excavation Sample Identification  : SD80 Sample Type  : Exc Desc. 1 : FRO111-09-1-S080-GS-0000, 1" water Desc. 2 :

Desc. 3 :

Desc. 4 :

Peak Locate Threshold 3.00 Peak Locate Range (in channels) 50 -! 8192 Peak Area Range (in channels) 50 -8192 Identification Energy Tolerance 2.000 keV Sample Size 1.000E+000 gm Note: For Point Source, report UNIT = none.

Sample Taken On 11/4/04 2:48:13 PM Acquisition Started 11/4/04 2:48:13 PM Live Time 1000.0 seconds Real Time 1000.7 seconds Energy Calibration Used Done On  : 4/29/04 Efficiency / Geometry ID  ;  : OIL AT 3M90D_1120 Efficiency Calibration Used Done On  : 1/14/05

)IA 1u17 o

7722-EXC01222.RPT 14-Jan-2005 15:38 Page 2 of 6 Peak Locate Analysis Report 1/14/2005 3:38:47 PM Page 2 P E A K L O C A T E R E P O R T Detector Name: 7722 Sample

Title:

Excavation Peak Locate Performed on: 1/14/2005 3:38:43 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 3.00 Peak Centroid Centroid Energy Peak No. Channel Uncertainty (keV) Significance 1 245.80 0.2688 75.09 6.15 2 781.17 0.2459 238.51 5.91 3 965.78 0.3295 294.86 3.06 4 1151.38 0.2327 35.1.51 6.32 5 1908.61 0.2529 582.66 4.05 6 1994.12 0.2095 608.76 6.09 7 2514.69 0.2856 767.66 4.21 8 2983.00 0.2434 910.61 4.65 9 3667.67 0.2488 1119.61 4.16 10 4783.81- 0.1236 1460.31 14.45

? = Adjacent peak noted Errors quoted at 1.000 sigma i

7722-EXC01222.RPT 14-Jan-2005 15:38 Page 3 of 6 Peak Analysis Report 1/14/05 3:38:47 PM Page 3

• • t**A*************A************************************ *****************

• • • • • P EA K A N11A L YSIS R EP OR T***

,*************~******************~*****************~*********** **************

Detector Name: 7722 Sample

Title:

Excavation Peak Analysis Performed on: 1/14/05 3:38:43 PM Peak Analysis From Channel: 50 Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net IPeak Net Area Continuum No. start end centroid (keV) Areea  % Uncert. Counts 1 243- 251 245.80 75.09 1.73E+002 44.03% 6.25E+002 2 774- 787 781.17 238.51 1.38E+002 42.86% 2.77E+002 3 961- 973 965.78 294.86 8.53E+001 48.05% 1.33E+002 4 1143- 1157 1151.38 351.51 1.49E+002 29.02% 1.16E+002 5 1900- 1914 1908.61 582.66 9.66E+001 33.52% 6.14E+001 6 1987- 2001 1994.12 608.76 1 .45E+002 23.30% 5.28E+001 7 2510- 2518 2514.69 767.66 1.51E+00i 123. 05% 3.49E+001 8 2976- 2992 2983.00 910.61 8. 09E+001 37.11% 4.91E+001 9 3660- 3675 3667.67 1119.61 5.50E+001 43.88% 3.20E+001 10 4773- 4794 4783,.81 1460.31 7.19E+002 7.61% 1 .63E+001 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7722-EXC01222.RPT 14-Jan-2005 15:38 Page 4 of 6 Interference Corrected Activity Report 1/14/05 3:38:47 PM Page 4

• • • • • • • • • • • • • • • ********~*******.************************* * *****i*~*****

• • • • • NUUCLIDE IDENTIFICATION REPORT

• Sample

Title:

Excavation Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB

.................... IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (pCi/gm ) Uncertainty K-40 0.990 1460.81* 10.67 4.674E+001 11. 11%

TL-208 0.457 277.35 6.80 510.84 21.60 583.14* 84.20 8.288E-001 35. 96%

763.13 1.64 860.37 12.46 PB-212 0.542 74.81* 10.70 3.549E+001 49. 06%

77.11 18.00 87.30 8.00 238.63* 44.60 2.432E+000 45.85%

300.09 3.41 PB-214 0.635 53.23 1.11 74.82* 6.21 .6.115E+001 48.74%

77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 4.394E+000 50.92%

351.92* 37.20 2.976E+000 33.49%

• = Energy line found in the spectrum.

Energy tolerance used was 2.000 Nuclide confidence index threshold = 0.30 Errors quoted at 1.960 sigma

7722-EXC01222.PR2T 14-Jan-2005 15:38 Page S of 6 Interference Corrected Activity Report 1/14/05 3:38:47 PM Page 5

• • • • • • • • • • • • • • I**** ****** ******i*R** ************* *E *******E **********

• • • I NT E RFE RE N CE C ORR EC T ED R E P ORT *****

• • • • • • t***~******I**************************************I*******************

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pCi/gm ) Uncertainty K-40 0.990 4.6737E+001 11.11%

TL-208 0.457 8.2880E-001 35.96%

PB-212 0.542 2.4319E+000 45.69%

PB-214 0.635 3.0808E+000 28.03%

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis Errors quoted at 1.960 sigma

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

• Peak Locate Performed on: 1/14/05 3:38:43 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty 6 608.76 btia4 1.4524E-001 23.30 - uun.i i 7 767.66 1.5080E-002 123.805 -kq, LLflm tr.

8 910.61 t2-:4 8.0892E-002 37.11 9 1i19.61 B&:Ai 5.4960E-002 43.88 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7722-FXC01222.RPT 14-Jan-2005 15:38 Page 6 of 6 Nuclide MDA Report 1/14/05 3:38:47 PM Page 6

• • • • • • • • • • -*********P*****************************************************

• • • • • NU C L IDE M D A REPO R T***

• • • • • • • • • • *** ** **** *** *** **** *** ***** ******* *1I***** * **

• I *** ** ******* *** I*

Detector Name: 7722 Sample Geometry: Soil 3m 90d Sample

Title:

Excavation Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuclide MDA Name (keV) (%) (pCi/gm ) (pCi/gm )

CO-60 1173.22 100.00 3.09E-001 2.57E-001 1332.49 100.00 2.57E-001 CS-137 661.65 85.12 4.93E-001 4.93E-001 EU-152 121.78 28.40 4.72E+000 9.67E-001 244.69 7.49 1.04E+001 344.27 26.50 2.OOE+000 443.98 2.81 1.73E+001 778.89 12.74 2.74E+000 867.32 4.16 8.00E+000 964.01 14.40 2.81E+000 lp85.78 10.00 3.22E+000 1112.02 13.30 2.37E+000 1407.95 20.70 9.67E-001 EU-154 123.07 40.50 3.25E+000 8.02E-001 247.94 6.60 1.09E+001 591.81 4.83 8.15E+000 692.41 1.69 2.22E+001 723.30 19.70 1.95E+000 756.87 4.33 8.34E+000 873.19 11.50 2.92E+000 996.32 10.30 3.11E+000 1004.76 17.90 1.69E+000 1274.45 35.50 8.02E-001 1596.53 1.85 1.02E+001

+ = Nuclide identified during the r nuclide identification

• = Energy line found in the spectz

> = MDA value not calculated o = Half-life too short to be able to perform the decay correction

7722-EXC01221.RPT 14-Jan-2005 15:54 Page I of 7

• • • A*********************************************************************

• • • • • GA M MA S PE C TR UM A NA LYS I S***

.**~****************************************** ******

ISOCS Report Generator ISOCSAN.TPL 2/26/96 Report Generated On  : 1/14/05 3:54:47 PM Spectrum File Name  : C:\GENIE2K\CAMFILES\Backyard\FRO111-SU9\77 Sample Title  : Excavation Sample Identification  : S081 Sample Type  : Exc Desc. 1 : FRO1l-09-1-SO81-GS-0000, 2" water Desc. 2 :

Desc. 3 :

Desc. 4 :

Peak Locate Threshold 3.00 Peak Locate Range (in channels)  : 50 - 8192 Peak Area Range (in channels) 50 - :8192 Identification Energy Tolerance  : 2.000 keV Sample Size  : 1.00OE+000 gm Note: For Point Source, report UNIT - none.

Sample Taken On  : 11/4/04 2:26:02 PM Acquisition Started  : 11/4/04 2:26:02 PM

. e.

Live Time 1000.0 seconds Real Time :1000.7 seconds Energy Calibration Used Done On  : 4/29/04 Efficiency / Geometry ID  : Soil 3m 90d Efficiency Calibration Used Done On  : 1/29/04 IIriJos'

7722-EXCO1221.RPT 14-Jan-2005 15:54 Page 2 of 7 Peak Locate Analysis Report 1/14/2005 3:54:47 PM Page 2

• • • • • • • A******************************************************************

• • • • • PE AK L OC A TE R EP OR T***

• ******,**********i**************************************************** *****

Detector Name: 7722 Sample

Title:

Excavation Peak Locate Performed on: 1/14/2005 3:54:44 PM Peak Locate Fr6m Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 3.00 Peak Centroid Centroid Energy Peak No. Channel uncertainty (keV) Significance 1 245.84 0.3307 75.10 4.25 2 781.46 0.2279 238.60 6.44 3 966.01 0.2874 294.93 3.21 4 1152.22 0.2244 351.77 7.03 5 1672.67 0.3326 510.63 3.18 6 1908.77 0.2420 582.70 4.90 7 1994.77 02i76 608.96 6.00 8 2166.27 0.2702 661.30 4.08 9 2514.84 0.3012 767..71 3.34 10 2982.72 0.2287 910.52 3.84 11 3172.98 0.2390 968.60 4.18 12 3668.95 0.2624 1119.99 3.25 13 4784.41 0.1301 1460.49 11.90

? = Adjacent peak noted Errors quoted at 1.000 sigma

Page 3 of 7 14-Jan-2005 15:54 7722-EXCOl22l .RPr 7722-EXC01221.RPT 14-Jan-2OD5 15:54 Page 3 of 7 Peak Analysis Report 1/14/05 3:54:47 PM Page 3

• • • • • • • • • • • • • • A***********************************************************

• • • • • P E AK A NA L YS IS R EP OR T***

• • • • • • • • • • • • *********~****************** ******,******,***************i*******

Detector Name: 7722 Sample

Title:

Excavation Peak Analysis Performed on: 1/14/05 3:54:44 PM Peak Analysis From Channel: 50 Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Ar ea  % Uncert. Counts 1 242- 250 245.84 75.10 8.88E+001 88.35% 7.07E+002 2 774- 786 781.46 238.60 1.59E+002 35.30% 2.51E+002 3 961- 972 966.01 294.93 8.75E+001 48.02% 1.48E+002 4 1147- 1160 1152.22 351.77 1.63E+002 26.33% 1.14E+002 5 1663- 1676 1672.67 510.63 6.07E+001 59.96% 1.02E+002 6 1902- 1914 1908.77 582.70 7.99E+001 37.82% 6.01E+001 7 1988- 2001 1994.77 608.96 1.52E+002 22.85% 5.90E+bo01 8 2161- 2171 2166.27 661.30 5.22E+001 44.35% 3.68E+001 9 2509- 2520 2514 .84 767.71 3.46E+001 60.70% 3.14E+001 10 2977- 2989 2982.72 910.52 8.05E+001 33.85% 4.25E+001 11 3165- 3181 3172.98 968.60 7.20E+001 36.75% 3.50E+001 12 3663- 3675 3668.95 1119.99 4.76E+001 47.58% 3.24E+001 13 4776- 4795 4784 .41 1460.49 6.85E+002 7.75% 1.51E+001 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7722-EXC01221.RPT 14-Jan-2005 15:54 Page 4 of 7 Interference Corrected Activity Report 2/14/05 3:54:47 PM Page 4

• • • • • NUCLIDE IDENTIFIC-AT:ION REPORT *****

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • i************,*******************************

Sample

Title:

Excavation Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB IDENTIFIED NUCLIDES Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (pCi/gm ) Uncertainty ANN 0.995 511.00* 100.00 2.002E-001 67.64%

K-40. 0.996 1460.81* 10.67 2.650E+001 19.54%

CS-137 0.995 661.65* 85.12 2.107E-001 45.89%

TL-208 0.735 277.35 6.80 510.84* 21.60 9.269E-001 68.13%

583.14* 84.20 3.188E-001 42.51%

763.13 1.64 860.37 12.46 PB-212 0.505 74.81* 10.70 4.833E+000 113.61%

77.11 18.00 87.30 8.00 238.63* 44.60 1 .178E+000 123.32%

300.09 3.41 BI-214 0.304 609.31* 44.80 1.148E+000 27.95%

665.45 1.29 768.36* 4.80 2.549E+000 61.83%

806.17 1.12 934.06 3.03 1120.29* 14.80 13.242E+000 48.67%

1155.19 1.64 1238.11 5.86 1280.96 1.44 1377.67 3. 92 1401.50 1.55 1407.98 2.80 1509.23 2.12 1661.28 1.14 1729.59 2.88 1764.49 15.36 1847.42 2.04 2118.55 1.14 2204.21 4.86 2447.86 1.50 PB-214 0.608 53.23 1.11 74.82* 6.21 8.328E+000 113.48%

77.11. 10.50 87.30 4.67 241.98 7.49 295;21* 19.20 1.473E+000 107.20%

351.92* 37.20 1.407E+000 79.399%

• = Energy line found in the spectrum.

Energy tolerance used was 2.000 -

Nuclide confidence index threshold = 0.30 Errors quoted at 1.960;sigma

7722-EXC01221.RPT 14-Jan-2005 15:54 Page 5 of 7 Interference Corrected Activity Report 1/14/05 3:54:47 PM Page 5

Page 6 of 7 14-Jan-2005 15:54 7722-EXCO122l .RPT 7722-EXC01221.RPT 14-Jan-2005 15:54 Page 6 of 7 Interference Corrected Activity Report 1/14/05 3:54:47 PM Page 6

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • I**R** *****

• • • I N TER FE RE N CE C ORR EC T ED R EP O RT ***

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pci/gm ) Uncertainty ANN 0.995 1.3135E-001 105.46%

K-40 0.996 2.6498E.*001 19.54%

CS-137 0.995 2.1068E-001 45.89%

TL-208 0.735 3.187SE-001 42.39%

PB-212 0.505 1.1781E+000 123.26V BI-214 0.304 1.2120E+000 23.01%

PB-214 0.608 1.4292E+000 63.81%

? = nuclide is part of an undetermined solution X - nuclide rejected by the interference analysis Errors quoted at 1.960 sigma U N I D E N T I ED P E A K S

• Peak Locate Performed on: 1/14/05 3:54:44 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty 10 910.52 1 A v 8.0472E-002 33.85 11 968.60 7.1979E-002 36.75 M = First peak in a multiplet region m . Other peak in a multiplet region Errors quoted at 1.960 sigma

Pge 7of 7722EXC~221 ~PT 4-Jn-205 1554 7722-B.xC01221.RPT 14-Jan-2005 15:54 Page 7 of 7 Nuclide MDA Report 1/14/05 3:54:47 PM Page 7

• • • • • • • • • I************** ***********A*************************************

• • • • • NU CL ID E M DA R EP OR T***

• • • **** * *1**** ******* *** **** ****** *.**********~**t*** ** ********* * *********

• Detector Name: 7722 Sample Geometry: Soil 3m 90d Sample

Title:

Excavation Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.?JLB Nuclide Energy Yield Line MDA Nuclide MDA Name (keV) (%) (pCi/gm ) (pCi/gm )

CO-60 1173.22 100.00 1.89E-001 1.46E-001 1332.49 100.00 1.46E-001 4 CS-137 661.65* 85.12 1.35E-001 1.35E-001 EU-152 121.78 28.40 2.02E+000 6.56E-001 244 .69 7.49 4.52E+000 344 .27 26.50 8.72E-001 443.98 2.81 7.45E+000 778.89 12.74 1.41E+000 867.32 4.16 4 .24E+ooo 964 .01 14.40 1.53E+000 1085.78 10.00 1.64E+000 1112.02 13.30 1.41E+000 1407.95 20.70 6.56E-001 EU-154 123.07 40.50 1.41E+000 4.42E-001 247.94 6.60 4 .76E+000 591.81 4 .83 4.04E+000 692.41 1.69 1.13E+001 723.30 19.70 1.02E+000 756.87 4.33 4 .44E+600 873.19 11.50 1.54E+00o 996.32 10.30 1.68E+600 1004 .76 17.90 9.20E-001 1274 .45 35.50 4 .42E-001 1596.53 1.85 5.12E+000

+ = Nuclide identified during the nuclide identification

• - Energy line found in the spectrum

> = MDA value not calculated 0 = Half-life too short to be able to perform the decay correction

7607-EXC00801.RPT 7 x .14-Jan-200515:21 Page I of 6

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

• ** 4*** * * ** * **4***4***4****4* **4* **4**4** * ** ****** *** ** *4**** ** * ***4**4* *** **4** *****

ISOCS Report Generator ISOCSAN.TPL 2/26/96 Report Generated On  : 1/14/05 3:21:38 PM Spectrum File Name  : C:\GENIE2K\CAMFILES\Backyard\FRO111-SU9\76 Sample Title  : Excavations Sample Identification  : S083 Sample Type *EXC Desc. 1 : FRO111-09-1-S083-GS-0000, 2" water Desc. 2 :

Desc. 3 :

Desc. 4 :

Peak Locate Threshold  : 3.00 Peak Locate Range (in channels) : 50 - 8192 Peak Area Range (in channels) 50 -' 8192 Identification Energy Tolerance : 2.000' keV Sample Size  : .1.000E+000 gm Note: For Point Source, report UNIT - none.

Sample Taken On, 11/4/04 '3:02:46 PM Acquisition Started  : 11/4/04 3:02:46 PM Live Time. 1000.0 seconds Real Time 1000.7 seconds Energy Calibration Used Done On  : 6/30/04 Efficiency / Geometry ID  : OILAT 3M90D 1120 Efficiency Calibration Used Done On  : 1/14/05

7607-EXC00801.FPT 14-Jan-2005 15:21 Page 2 of 6 Peak Locate Analysis Report 1/14/2005 3:21:38 PM Page 2

• • • • P**A********L**CT********R****O***************** *R*******************

• • • • • PE AK L OC A TE R EP O RT***

i********* *** ***,** ********* *** **** ** ***** *********** *** ********** ******** **

Detector flame: 7607 Sample

Title:

Excavations Peak Locate Performed on:

• 1/14/2005 3:21:34 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 3.00 Peak Centroid Centroid Energy Peak No. Channel Uncertainty (key). Significance 1 245.71 0.2459 75.09 5.32 2 781.05 0.1697 238.51 9.10 3 966.08 0.2076 294.99 5.37 4 1151.61 0.1724 351.63 7.63 5 1672.72 0.2296 510.71 4.18 6 1907.92 0.1748 582.51 6.84 7 1993.13 0.1495 608.52 9.45 8 2980.98 0.1776 910.08 6.32 9 3169.60 0.2178 967.66 4.64 10 3493.02 0.2632 1066.39 3.08 11 3664.99 0.2180 1118.88 3.27 12 4780.21 0.0979 1459.33 18.37 13 5774.56 0.1877 1762.87 4.94

? = Adjacent peak noted Errors quoted at 1.000 sigma

7607-EXC00801.RPT 14-Jan-2005 15:21 Page 3 of 6 Peak Analysis Report 1/14/05 3:21:38 PM Page 3

• • • • A******************************* I**************** *******************

• • • • • P E AK ANA L YSI S R EP OR T***

44* 4444* 444* 4* *

• 444* 4* 4444* 4* 4* ** 4* 44 4* **4***44** 4*

• 4* 4* 4

• 4* 4* ** * *** **

Detector Name: 7607 Sample

Title:

Excavations Peak Analysis Performed on: 1/14/05 3:21:34 PM Peak Analysis From Channel: 50 Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net IPeak Net Area Continuum No. start end centroid (keV) Art*ea  % Uncert. Counts 1 234- 250 245.71 75.09 3.04E+002 38.74% 1.04E+003 2 773- 787 781.05 238.51 1.70E+002 36.83% 2.96E+002 3 961- 973 966.08 294.99 8.62E+001 52.12% 1.65E+002 4 1146- 1162 1151.61 351.63 1.46E+002 33.77% 1. 52E+002 5 1665- 1681 1672.72 510.71 6.14E+001

• 67.19% 1.22E+002 6 1899- 1916 1907.92 582.51 1.07E+002 38.51% 1.02E+002 7 1986- 2000 1993.13 608.52 1.77E+002 20.30V 5.57E+001 8 2972- 2989 2980.98 910.08 9.75E+OOl 30.43% 4 .05E+00l 9 3163- 3177 3169.60 *967.66 3.15E+001 84.455% 5.25E+001 10 3488- 3499 3493,.02 1066.39 1.97E+001 88.56% 2.33E+001 11 3657- 3673 3664.99 1118.88 4 .80E+001 51.72% 3.60E+001 12 4769- 4791 4780.21 1459.33 7.4OE+002 7.37% 8.72E+000 13 5766- 5782 5774.56 1762.87 4.87E+001 31.92% 4.34E+000 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-ExCOOB0l.RPT 14-Jan-2005 15:21 Page 4 of 6 Interference Corrected Activity Report 1/14/05 3:21:38 PM Page 4

• • • • • • ~***** ***********************t******** *************************4******

• • • • • 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

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB

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

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

Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (pCi/gm ) Uncertainty K-40 0.916 1460.81* 10.67 4 .847E+001 10.95%

TL-208 0.725 277.35 6.80 510.84* 21.60 2.042E+000 69.03t 583.14* 84.20 9.096E-001 40.65%

763.13 1.64 860.37 12.46 PB-212 0.545 74.81* 10.70 6.322E+00l 44.37%

77.11 18.00 87.30 8.00 238.63* 44.60 2.968E+000 40.27%

300.09 3.41 BI-214 0.381 609.31* 44.80 2.834E+000 23.85%

6S5.45 1.29 768.36 4.80 806.17 1.12 934.06 3.03 1120.29* 14.80 2.252E+000 52.47%

1155.19 1.64 1238.11 5.86 1280.96 1.44 1377.67 3.92 1401.50 1.55 1407.98 2.80 1509.23 2.12 1661.28 1.14 1729.59 2.88 1764.49* 15.36 2.241E+000 32.96%

1847.42 2.04 2118.55 1.14 2204.21 4.86 2447.86 1.50 PB-214 0.639 53.23 1.11 74.82* 6.21 1.089E4002 44.02%

77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 3.385E+000 54.77%

351.92* 37.20 2.879E+000 37.68%

• = Energy line found in the spectrum.

Energy tolerance used was 2.000 Nuclide confidence index threshold . 0.30 Errors quoted at 1.960 sigma

7607-EXC00801.RPT 14-Jan-2005 15:21 Page 5 of 6 Interference Corrected Activity Report 1/14/05 3:21:38 PM Page 5

• • • • • • • • • • • • • t******* ****4 ** * ***** ***************** ** ******

• 4*** I NT ER FE R E NCE COR R EC T ED R EP O RT ***

• 44444444*4*4*44*4****4*4444**4 **4*4444********4****44****4****4*4 44*4*4*

Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pCi/gm ) Uncertainty X ANN 0.997 K-40 0.916 4.8471E+001 10.95%

TL-208 0.725 9.8249E-001 36.40%

PB-212 0.545 2.9681E+000 40.09%

BI-214 0.381 2.5165E+000 18.25%

PB-214 0.639 3.0080E+000 31.13%

? = nuclide is part of an undetermined solution X = nuclide rejected by the interference analysis Errors quoted at 1.960 sigma U N I D E N T I F I E D P E A K S

• Peak Locate Performed on: 1/14/05 3:21:34 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty 9.7500E-002 30.43 9 91667.63694 3.1500E-002 84 45 L i4 88.56 E~nLLd- c 1-10 1066.39 1.9698E-002 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXCO0801.RPT 14-Jan-2005 15:21 Page 6 of 6 Nuclide MDA Report 1/14/05 3:21:38 PM Page 6

• • • • • N UC L IDE M DA R EP OR T***

• • • • • • I****** ****I***** ****4* *** **i**** ** **********************,** *****k**

Detector Name: 7607 Sample Geometry: Soil 3m 90d Sample

Title:

Excavations Nuclide Library Used: C: \GENIE2K\CAMFILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuclide MDA Name (keY) (t) (pCi/gm ) (pCi/gm )

CO-60 1173.22 100.00 4.04E-001 2.83E-001 1332.49 100.00 2.83E-001 CS -137 661.65 85.12 6.38E-001 6.38E-001 EU-152 121.78 28.40 6.83E+000 1.37E+000 244.69 7.49 1.51E+001 344.27 26.50 3.15E+000 443.98 2.81 2.23E+001 778.89 12.74 3.42E+000 867.32 4.16 9.57E+000 964.01 14.40 3.13E+000 1,085.78 10.00 3.81E+000 1112.02 13.30 3.35E+000 1407.95 20.70 1.37E+000 EU-154 123.07 40.50 4.71E+000 1.08E+000 247.94 6.60 1.52E+001 591.81 4.83 1.09E+001 692.41 1.69 2.84E+001 723.30 19.70 2.42E+000 756.87 4.33 1.09E+001 873.19 11.50 3.44E+000 996.32 10.30 3.69E+000 1004.76 17.90 2.29E+000 1274.45 35.50 1.08E+000 1596.53 1.85 1.33E+001

+ = Nuclide identified during the nuclide identification

• = Energy line found in the spectrum

> = MDA value not calculated

@ = Half-life too short to be able to perform the decay correction

7607-EXC00802.PRPT 14-Jan-2005 15:23 Page I of 7

• • • • A*************************** ****************************************

• • • • • GA MM A S PE C T RUM A NAL Y SI S***

• • • ~*****~***********~********************************

ISOCS Report Generator ISOCSAN.TPL 2/26/96 Report Generated On  : 1/14/05 3:23:11 PM Spectrum File Name  : C:\GENIE2K\CAMFILES\Backyard\FRO111-SU9\76 Sample Title  : Excavations Sample Identification  : S085 Sample Type  : EXC Desc. 1 : FRO111-09-1-S085-GS-0000, 1" water Desc. 2 :

Desc. 3 :

Desc. 4 :

Peak Locate Threshold 3.00 Peak Locate Range (in channels) : 50 - 8192 Peak Area Range (in channels) 50 - 8192 Identification Energy Tolerance : 2.000 keV Sample Size  : 1.000E+000 gm Note: For Point Source, report UNIT = none.

Sample Taken On  : 11/4/04 3:21:59 PM Acquisition Started  : 11/4/04 3:38:42 PM Live Time 1045.0 seconds Real Time 1045.7 seconds Energy Calibration Used Done On  : 6/30/04 Efficiency / Geometry ID  : OIL AT 3M90DH20 Efficiency Calibration Used Done On  : 1/14/05 11 N rinloS

7607-EXCO0802.RPT 14-Janv-2005 15:23 Page 2 of 7 Peak Locate Analysis Report 1/14/2005 3:23:11 PM Page 2 P E A K L O C A T E R E P O R T

• • • • • • • • • • • • ******,&*****************************~************~*****.*******

Detector Name: 7607 Sample

Title:

Excavations Peak Locate Performed on: 1/14/2005 3:23:07 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Search Sensitivity: 3.00 Peak Centroid Centroid Energy Peak No. Channel Uncertainty (keV) Significance 1 245.75 0.2171 75.10 6.52 2 781.22 0.1648 238.56 9.60 3 966.02 0.2180 294 .97 5.16 4 1107.10 0.2183 338.04 5.49 5 1151.48 0.1666 351.59 8.30 6 1671.25 0.2008 510.26 5.30 7 1907.95 0.1612 582.52 7.96 8 1993.46 0.1480 608.62 9.72 9 2981.16 0.1746 910.13 6.04 10 3170.65 0.2015 967.98 4.67 11 3665.55 0.1927 1119.06 4.98 i2 4780.30 0.0968 1459.35 18.64 13 5775.13 0.1822 1763.05 5.16 14 7216.73 0.23 06 2203.12 3.32

? = Adjacent peak noted Errors quoted at 1.000 sigma

7607-ExCC0802.RPT 14-Jan-2005 15:23 Page 3 of 7 Peak Analysis Report 1/14/05 3:23:12 PM Page 3

• • • • • t***A*****A***I***** * * * * * * * * * *

• • • • • P E AK A NA L YS IS R EP OR T***

• • • • • • • • • • • • • • • • • • • • • .****** *******,*****i.****~*********************i********

Detector Name: 7607 Sample

Title:

Excavations Peak Analysis Performed on: 1/14/05 3:23:07 PM Peak Analysis From Channel: 50 Peak Analysis To Channel: 8192 Peak ROI ROI Peak Energy Net Peak Net Area Continuum No. start end centroid (keV) Area  % Uncert. Counts 1 241- 251 245.75 75.10 1.27E+002 70.19% 8.07E+002 2 775- 786 781.22 238.56 1.60E+002 34.56% 2.54E+002 3 955- 974 966.02 294.97 1.43E+002 42.13% 2.27E+002 4 1101- 1113 11P07.10 338.04 5.62E+001 76.27% 1.60E+002 5 1139- 1158 1151.48 351.59 1.89E+002 29.20% 1.72E+002 6 1660- 1682 1671.25 510.26 1.52E+002 32.51% 1.24E+002 7 1901- 1915 1907.95 582.52 1.33E+002 27.24% 7.15E+001 8 1984- 2001 1993.46 608.62 1.81E+002 21.66% 6.72E+001 9 2971- 2990 2981.16 910.13 1.09E+002 28.92% 4.23E+001 10 3163- 3180 3170;65 967.98 7.73E+001 34.45% 3.27E+001 11 3656- 3673 3665.55 1119.06 5.42E+ODl 50.36% 4.28E+001 12 4770- 4791 4780.30 1459.35 7.61E+002 7.54% 2.53E+001 13 5767- 5782 5775.13 1763.05 5.20E+001 32. 88% 7.97E+000 14 7210- 7223 7216.73 2203.12 1.85E+001 56.24% 3.50E+000 M = First peak in a multiplet region m = Other peak in a multiplet region Errors quoted at 1.960 sigma

7607-EXCO0802.RPT 14-Jan-2005 15:23 Page 4 of 7 interference Corrected Activity Report 1/14/05 3:23:12 PM Page 4

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Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB

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

Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (1) (pci/gm ) Uncertainty ANN 0.978 511.00* 100.00 1.045E+000 35.22%

K-40 0.919 1460.81* 10.67 4 .766E+001 11.07%

TL-208 0.724 277.35 6.80 510.84* 21.60 4.839E+000 36.16%

583.14* 84.20 1.079E+000 30.20%

763.13 1.64 860.37 12.46 PB-212 0.545 74.81* 10.70 2.521E+001 73.4 5%

77.11 18.00 87.30 8.00 238.63* 44.60 2.672E+000 38.21%

300.09 3.41 BI-214 0.452 609.31* 44.80 2.765E+000 25.01%

665.45 1.29 768.36 4.80 806.17 1.12 934.06 3.03 1120.29* 14.80 2.432E+000 51.12%

1155.19 1.64 1238.11 5.86 1280.96 1.44 1377.67 3.92 1401.50 1.55 1407.98 2.80 1509.23 2.12 1661.28 1.14 1729.59 2.88 1764.49* 15.36 2.293E+000 33.89%

1847.42 2.04 2118.55 1.14 2204.21* 4.86 2.583E+000 56.90%

2447.86 1.50 PB-214 0.639 53.23 1.11 74.82* 6.21 4 .344E+001 73.23%

77.11 10.50 87.30 4.67 241.98 7.49 295.21* 19.20 5.356E+000 45.37%

351.92* 37.20 3.569E+000 33.65%

AC-228 0.314 89.95 2.10 93.35 3.50 105.00 1.60

7607-EXC00802.RPT 14-Jan-2005 15:23 Page 5 of 7 Interference Corrected Activity Report 1/14/05 3:23:12 PM Page 5 Nuclide Id Energy Yield Activity Activity Name Confidence (keV) (%) (pCi/gm ) Uncertainty AC-228 0.314 129.08 2.80 209.28 4.40 270.23 3.60 327.64 3.20 338.32* 11.40 3.487E+000 87.33%

409.51 2.13 463.00 4.40 794.70 4.60 B35.50 1.75 911.07* 27.70 2.607E+000 31.92%

964.60 5.20 969.11* 16.60 3.092E+000 41.82%

1588.00 3.50

• - Energy line found in the spectrum.

Energy tolerance used was .2.000 Nuclide confidence index threshold = 0.30 Errors quoted at 1.960 sigma

7607-ExC00802.RPT 14-Jan-2005 15:23 Page 6 of 7 Interference Corrected Activity Report 1/14/05 3:23:12 PM Page 6

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Nuclide Wt mean Wt mean Nuclide Id Activity Activity Name Confidence (pCi/gm ) Uncertainty ANN 0.978 8.1206E-001 46.15%

K-40 0.919 4.7664E+001 11.07%

TL-208 0.724 1.0794E+000 30.02%

PB-212 0.545 2.6724E+000 38.02%

BI-214 0.452 2.5424E+000 17.85%

PB-214 0.639 3.9194E+000 27.47%

AC-228 0.314 2.7861E+000 24.48%

? 8 nuclide is part of an undetermined solution X . nuclide rejected by the interference analysis Errors quoted at 1.960 sigma

• U N I D,E N T I F I E D P E A K S

• Peak Locate Performed on: 1/14/05 3:23:07 PM Peak Locate From Channel: 50 Peak Locate To Channel: 8192 Peak Energy Peak Size in Peak CPS No. (keV) Counts per Second  % Uncertainty All peaks were identified.

M 8 First peak in a multiplet region m - Other peak in a multiplet region Errors quoted at 1.960 sigma

- .. 15 P 7o 7607-BXC00802.RPT 14-Jan-2005 15:23 Pagn 7 of 7 Nuclide MDA Report 1/14/05 3:23:12 PM Page 7 N U C L I D E M D A R E P O R T

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Detector Name: 7607 Sample Geometry: Soil 3m 90d Sample

Title:

Excavations Nuclide Library Used: C:\GENIE2K\CAMFILES\Backyard.NLB Nuclide Energy Yield Line MDA Nuclide MDA Name (keV) (%) (pCi/gm ) (pci/gm )

CO-60 1173.22 1 00.00 3 .86E-001 2.98E-001 1332.49 100.00 2.98E-001 CS-137 661.65 85.12 5.92E-00l 5.92E-001 EU-152 121.78 28.40 6.79E+000 1.33E+000 244.69 7.49 1.50E+001 344 .27 26.50 3.15E+000 443.98 2.81 2.08E+001 778.89 12.74 3.37E+000 867.32 4.16 9.98E+000 964 .01 14.40 3.36E+000 1085.78 10.00 3.95E+000 1112.02 13.30 3.39E+000 1407.95 20.70 1.33E+000 EU-154 123.07 40.50 4 .68E+000 9.39E-001 247.94 6.60 1.51E+001 591.81 4.83 1.03E+001 692.41 1.69 2.90E+00l 723.30 19.70 2.53E+000 756.87 4.33 1.02E+001 873.19 11.50 3.43E+000 996.32 10.30 3.62E+000 1004.76 17.90 2.14E+00 1274.45 35.50 9.39E-001 1596.53 1.85 1.17E+001

+ = Nuclide identified during the nuclide identification

• - Energy line found in the spectrum

> = MDA value not calculated

@ = Half-life too short to be able to perform the decay correction