ML072890730

Final Status Survey Final Report Phase V, Appendix A2, Survey Unit Release Record 9520-0002, Southwest Site Storage Area.

ML072890730
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	12/31/2006
From:	Mccarthy J Connecticut Yankee Atomic Power Co
To:	NRC/FSME
References
9520-0002
Download: ML072890730 (163)

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954 A. Y5St December 2006

CYAPCO FINAL STATUS SURVEY RELEASE RECORD SOUTHWEST SITE .STORAGE AREA SURVEY UNIT 9520-0002 Prepared By: Date: fi,*- FSS EngineeS Reviewed Date: _________ Approved By: T___

                      .___..          Date:___        __

Technical Support Manager Revision 0

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD TABLE OF CONTENTS

1. SURVEY UNIT DESCRIPTION ....................................................... 3

2. CLA SSIFICA TION BA SIS ..................................................................... 3

3. DATA QUALITY OBJECTIVES (DQO) ..................... 5

4. SU RV EY D ESIG N ............................................................................. 8

5. SURVEY IMPLEMENTATION ....................................................... 11

6. SU RV EY RESU LTS ........................................................................ 12

7. QUALITY CON TROL .................................................................... 16

8. INVESTIGATIONS AND RESULTS ............................................. 16

9. REMEDIATION AND RESULTS ......................... 17

10. CHANGES FROM THE FINAL STATUS SURVEY PLAN ...... 17

11. DATA QUALITY ASSESSMENT (DQA) ....................................... 17

12. AN O M A L IE S ................................................................................... 17

13. C O N C LU SIO N ................................................................................. 18

14. A TTA CH M EN TS ............................................................................. 18 14.1 Attachment I - Figures (6 pages including cover) 14.2 Attachment 2 - Scan Results (6 pages including cover) 14.3 Attachment 3 - Laboratory Data (119 pages including cover) 14.4 Attachment 4 - DQA Results (13 pages including covers)

TOTAL 162 Revision 1

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD SURVEY UNIT DESCRIPTION Survey Unit 9520-0002 (Southwest Site Storage Area) is designated as Final Status Survey (FSS) Class 2 and consists of 9,720 m2 (2.4 acres) of uninhabited open land located approximately 1,167 feet from the reference coordinate system benchmark used at Haddam Neck Plant (HNP) (see Attachment 1). The survey unit is bounded as follows: land Survey Unit 9520-0001 to the north (called north as oriented with the north to south flow of the Connecticut River), the Discharge Canal to the east, land Survey Unit 9520-0003 to the south, and the Connecticut River to the west. The survey unit is relatively level open space in the middle of the peninsula. The restoration of the peninsula for FSS has removed most of the surface interference in the survey unit. The reference coordinates associated with this survey unit are E003 through E007 by S078 through S086 (refer to License Termination Plan (LTP) Section 5.4.4). The reference coordinates provide the maximum dimensions of a rectangle containing this survey unit. Some areas contained in this rectangle may not be part of this survey unit. The boundary of the survey unit was defined using a Global Positioning System (GPS) based on the Connecticut State Plane System North American Datum (NAD) 1927.

2. CLASSIFICATION BASIS The survey unit was classified in accordance with Procedure RPM 5.1-10, "Survey Unit Classification."

The "Classification Basis Summary" conducted for Survey Unit 9520-0002 consisted of: a) A review of the 10CFR50.75 (g) (1) database, b) A review of the "InitialCharacterizationReport" and the "HistoricSite Assessment Supplement, " c) Historic and current survey records review, d) Visual inspections and a "walkdown." A review of the 10CFR50.75(g)(1) database report and historical files shows a documented history of the use of this survey unit as a radioactive materials storage area. Additionally, at least one (1) case of contamination to underlying soil has been recorded (refer to survey performed 3/23/1985). Examples of some of the major events are provided below. a) Plant Incident Report (PIR) 80-37 reported the discovery of three (3) discrete sources of elevated activity on the Southeast Site Storage area in March 1980, along with other areas around the site. Two (2) of the discrete sources were identified within adjacent Survey Unit 9520-0001. The location of the third discrete source, identified as 3-24-2, was likely in Survey Unit 9520-0002 based on a review of the 1980 survey maps. PIR 80-37 gave the likely cause of the third discrete source (and others Revision 0 3 Revision 0 3

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD found around the Site) as a series of operational events that had occurred since January 1979 that released a burst of air or steam through the ventilation ducts and out the Primary Vent Stack. The report included isotopic analysis of the third discrete source, which indicates a mixture of short lived fission products (e.g., Cs-134, Zr-95). The elevated areas were removed upon detection according to the report.

         *b) Health Physics surveys performed in 1983 and 1985 document the discovery of radioactive material (strainers, bolts, wood pallets, sections of pipe, etc.) on the peninsula. The 1985 survey documents the discovery of contaminated dirt under a pallet.

c) Condition Report (CR) 05-0314: Documents the discovery of excavation spoils, intended for backfill, above the radiological criteria for use as backfill. These spoils were located south of 9520-0002, probably in Survey Units 9520-003 and 9520-0004. According to the CR closure documentation, the affected spoils were removed and packaged for. disposal. Follow-up survey and sampling was performed and the results were below established action levels. A review of the "Initialand Supplemental CharacterizationReports" as well as the previous "Classification Basis Summaries" was performed. Survey Unit 9520-0002 was initially designated as Class 2 during the development of the LTP. The source documents, the "Connecticut Yankee Haddam Neck Characterization Report" and "Initial Classification for Survey Areas at Connecticut Yankee", were incorporated by reference in LTP revision 0 (references 2-2 and 2-7 respectively). The second source document justified a Class 2 designation for those areas for which there was historical evidence of contamination above the Derived Concentration Guideline Levels (DCGLs - refer to Section 2 for definition and description of DCGL), but for which recent surveys had shown that decontamination efforts had occurred and that the radiological conditions were expected to be below the DCGLs. Additional justification for a Class 2 designation based on survey and sampling data was provided as another reference to the LTP by the "Haddam Neck Plant HistoricalSite Assessment SApplement". Removal of material and restoration of the peninsula for FSS has been ongoing since 2000, starting with the radiological release of the South Access Point and several abandoned trailers. The collapse of the Radioactive ...- Material(s) -Area -(RMA)--boundar-y-.and- removal-of.-subsufface- commodities-_ has produced a large data set that has helped characterize the radiological contaminants of concern and extent of contamination. Although Co-60 has been identified in the past (refer to the "Haddam Neck Plant Historical Site Assessment Supplement"), Cs- 137 has been the only radionuclide that has been consistently reported in concentrations above detection levels and with the potential to exceed the screening criteria (refer to Section 3). Revision 0 4 Revision 0 4

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD Characterization was performed in August 2006 to support final classification and FSS planning. Statistical quantities (mean, median and standard deviation) from the 2006 characterization survey conducted under SSWP 06-07-006 are provided in Table 1. T-1-br -Iter .n Minimum Observed Concentration (pCi/g): 1.86E-02 Maximum Observed Concentration (pCi/g): 1.13E-01 Mean (pCi/g): 6.06E-02 Median (pCi/g): 5.67E-02 Standard Deviation (pCi/g): 3.73E-02 The FSS Engineer performed a visual inspection and walk-down during September 2006 to assess the physical condition of the survey unit, evaluate access points and travel paths and identify potentially hazardous conditions. This survey area is affected by existing groundwater (reference CY memo ISC 06-024) which will be a source of dose from residual radioactivity, as discussed in Section 3 under the Data Quality Objectives. Based upon the results of radiological surveys performed over six years of restoration and the 2006 characterization survey, it was concluded that there was a low probability for' residual radioactivity in concentrations greater than the DCGLs, justifying a final survey unit classification of Class 2 (refer to Section 3).

3. DATA QUALITY OBJECTIVES (DQO)

FSS design and planning used the Data Quality Objective (DQO) process as described by the LTP, Procedure RPM 5.1-11, "Preparationof Final Status Survey Plan," and the "Multi-Agency Radiation Survey and Site Investigation Manual" (MARSSIM). A summary of the main features of the DQO process are provided herein. The DQO process incorporated hypothesis testing and probabilistic sampling distributions to control decision errors during data analysis. Hypothesis testing is a process based on the scientific method that compares a baseline condition to .-- *-.--.an alternate- condition.__The baseline condition.-is technicallyknown-as.the-nulL_ hypothesis. Hypothesis testing rests on the premise that the null hypothesis is true and that sufficient evidence must be provided for rejection. In designing the survey plan, the underlying assumption, or null hypothesis was that residual activity in the survey unit exceeded the release criteria. Rejection of the null hypothesis would indicate that residual activity within the survey unit does not exceed the release criteria. Therefore, the survey unit does satisfy the primary objective of the FSS plan. Revision 0 5

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD The primary objective of the FSS plan was to demonstrate that the level of residual radioactivity in Survey Unit 9520-0002 did not exceed the release criteria specified in the LTP and that the potential dose from residual radioactivity is As Low As Reasonably Achievable (ALARA). A fundamental precursor to survey design is to establish a relationship between the release criteria and some measurable quantity. This is done through the development of DC.GLs. The DCGLs represent average levels of radioactivity above background levels and are presented in terms of surface or mass activity concentrations. Chapter 6 of the LTP describes in detail the modeling used to develop the DCGLs for soil (called Base Case Soil DCGL), existing groundwater radioactivity and future groundwater radioactivity that will be contributed by building basements and footings. The DCGLs presented in Chapter 6 of the LTP were developed for exposures from three (3) components, that is, residual radioactivity in soil, existing groundwater radioactivity, and future groundwater radioactivity from the burial of concrete foundations or footings from site buildings containing residual radioactivity. Equation 1 shows the mathematical relationship between the three (3) components and the total dose. Equation 1 HTotal = H Soil +/--HExistingGW+/-HFut,'-eGW The total dose under the LTP criteria is twenty-five (25) mrem/yr TEDE from all three (3) components. The allowable total dose under the Connecticut Department of Environmental Protection (CTDEP) radiological remediation standard for CY is nineteen (19) mrem/yr TEDE. To satisfy both the LTP and CY CTDEP criteria, the dose from soil must be reduced when using the existing and future groundwater dose values discussed above. This survey area is affected by existing groundwater (reference CY memo ISC 06-024). Therefore, the dose contribution from existing groundwater is bounded by two (2) mremlyr TEDE. This survey unit is not considered impacted by future groundwater radioactive contamination, as there are no buried concrete foundations or footings containing residual radioactive material within the groundwater saturated zone in the area (reference CY memo ISC 06-024). The dose contribution from future groundwater, the third dose component is, therefore, zero (0) mrem/yr TEDE. Equation 2 19 mrenl/yrTotal = 17 mnrem/yrsil + 2 mrem/yrExisting GW+ 0 mrem/yrFutureGW Revision 0 6 Revision 0 6

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD The allowable dose for soil in this survey unit is seventeen (17) mrem/yr TEDE as shown by Equation 2 above. The concentration of residual radioactivity resulting in seventeen (17) mrem/yr TEDE is designated as the Operational DCGL, and has been established for the radionuclides of concern as provided in Table 2. T:..:able 2-.onu.clid Specific

                                   .         a- '.Case i'D'." ," '.,. tioE.:'MC '
                               -MM              D'tm eticabl iýConce tratbi
 .did:nid&P,0) *Base*Case Sol:, ~O~eiationali DCGr:".Ajeq uled *:
                                              -

1H-3 4.12E+02 2.80E+02 1.65E+01 C-14 5.66E+00 3.85E+00 2.26E-01 Mn-54 1.74E+01 1.18E+01 6.96E-01 Fe-55 2.74E+04 1.86E+04 1.10E+03 Co-60 3.81E+00 2.59E+00 1.52E-01 Ni-63 7.23E+02 4.92E+02. 2.89E+01 Sr-90 1.55E+00 1.05E+00 6.20E-02 Nb-94 7.12E+00 4.84E+00 2.85E-01 Tc-99 1.26E+01 8.57E+00 5.04E-0I Ag-108m 7.14E+00 4.86E+00 2.86E-0I Cs-134 4.67E+00 3.18E+00 1.87E-01 Cs-137 7.91E+00 5.38E+00 3.16E-01 Eu- 152 1.01E+01 6.87E+00 4.04E-01 Eu- 154 9.29E+00 6.32E+00 3.72E-0I Eu-155 3.92E+02 2.67E+02 1.57E+01 Pu-238 2.96E+0 1 2.01 E+0 1 1.1 8E+00 Pu-239/240 2.67E+01 1.82E+01 1.07E+00 Pu-241 8.70E+02 5.92E+02 3.48E+01 Am-24 ItI) 2.58E+01 1.75E+01 1.03E+00 Cm-243/244 2.90E+O1 1.97E+O 1 1.1 6E+00 (1) Bold indicates those radionuclides considered to be Hard-to-Detect (HTD) (2) The Base Case Soil DCGLs for soil are specified by the LTP in Chapter 6 and are equivalent to 25 mrem/yr TEDE (3) The Operational DCGL is equivalent to 17 mrem/yr TEDE

--(4) The-equi-e--MDCi                 tTEDE (5) Americium-241 can   be  analyzed  by gamma and alpha spectroscopy and is considered to be Easy to Detect (ETD); the preferred result is the alpha spectroscopy's when both analyses are performed Another important facet of the DQO process is to identify the radionuclides of concern and determine the concentration variability.                      Soil samples were collected in 2006       to establish   the  radiological     condition  of  Survey Unit 9520-Revision 0                                                7 Revision 0                                                7

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002

                                  . RELEASE RECORD 0002 for FSS. Cs-137 was the only gamma emitting radionuclide reported in concentrations with the potential for exceeding the screening criteria. The characterization data were used for the survey design and are provided in Table 1.

Instrument DQOs included a verification of the ability of the survey instrument to detect the radiation(s) of interest relative to the DCGL. Survey instrument response checks were required prior to issue and after the instrument had been used. Control and accountability of survey instruments was required to assure the quality and prevent the loss of data. As part of the DQOs applied to laboratory processes, analysis results were reported as actual calculated results. Results reported as less than Minimum Detectable Concentration (MDC) were not accepted for FSS. Sample report summaries included unique sample identification, analytical method, radionuclide, result, and uncertainty to two (2) standard deviations, laboratory data qualifiers, units, and the required and observed MDC.

4. SURVEY DESIGN The level of effort associated with planning a survey is based on the complexity of the survey and nature of the hazards. Guidance for preparing FSS plans is provided in Procedure RPM 5.1-11, "Preparation of Final Status Survey Plans". The FSS plan uses an integrated sample design that combines scanning surveys and sampling which can be either random or biased.

The DQO process determined that Cs- 137 would be the radionuclide of concern in Survey Unit 9520-0002 (refer to Section 3). Other radionuclides identified during this FSS would be evaluated to ensure adequate survey design. Surrogate DCGLs were not required for this survey unit via screening under LTP Section 5.4.7.2, "Gross Activity DCGLs". Radionuclide screening or de-selection is a process where an individual radionuclide or aggregates may be considered insignificant and eliminated from the FSS. The criteria for de-selection are concentrations less than 5% for individual radionuclides and less than 10% for aggregates. The Elevated Measurement Comparison (EMC) did not apply to this survey unit since it is a Class 2 area and discrete, elevated areas of contamination were not expected.

---

The -Sign-Test-wasselected as-thenon-parametric-statistical-test. The use-of-the-Sign Test did not require the selection or use of a background reference area, which simplified survey design and implementation. This approach was conservative since it included background Cs- 137 as part of the sample set.

The number of soil samples for FSS was determined in accordance with Procedure RPM 5.1-12, "Determination of the Number of Suiface Samples for FinalStatus Survey." The Lower Bound of the Gray Region (LBGR) was set in accordance with Procedure RPM 5.1-11 to 5.31 to maintain the relative shift Revision 0 8 Revision 0 S

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD (A/cs) in the range of I and 3. The resulting Adjusted Relative Shift was 2.0. A Prospective Power Curve was generated using COMPASS, a software package developed under the sponsorship of the United States Nuclear Regulatory Commission (USNRC) for implementation of the MARSSIM in support of the decommissioning license termination rule (10 CFR 20, Subpart E). The result of the COMPASS computer run showed adequate power for the survey design. The survey design specified fifteen (15) surface soil samples for non-parametric statistical testing and five (5) samples at biased locations. The grid pattern and locations of the soil samples were determined using Visual Sample Plan (VSP) in accordance with Procedure RPM 5.1-14, "Identifying, and Marking Surface Sample Locations for Final Status Survey." Visual Sample Plan was created by Pacific Northwest National Laboratory (PNNL) for the United States Department of Energy. A systematic triangular grid pattern with a random starting point was selected for sample design, which is appropriate for a Class 2 area. Judgmental sampling was included as a feature of this survey design to account for any anomalies potentially identified in the field. Sample locations were identified using AutoCAD-LT, a commercially available plotting software package with coordinates consistent with the Connecticut State Plane System. These coordinates were integrated with a GPS to locate sample locations in the field. Sample Measurement Locations for the design are listed with the GPS coordinates in Table 3. D.(:::*.*-* eS.!~~si.ton*:: !t:.-*..,: *:' *..-:,.-.iN~ort~m *.in...* n-: tas"tiiigg~)';5

                                                                           * ! '      !**:i -}

9520-0002-OO1F 235939.59 669151.81 9520-0002-002F 235939.59 669241.40 9520-0002-003F 235862.00 669107.01 9520-0002-004F 235862.00 669196.60 9520-0002-005F 235862.00 669286.19 9520-0002-006F 235862.00 669375.78 9520-0002-007F 235784.41 669151.81 9520-0002-008F 235784.41 669241.40 9520-0002-009F 235784.41 669330.99 9520-0002-01 OF 235784.41 669420.58 9520-0002-01 IF 235784.41 669510.16 9520-0002-012F 235706.83 669286.19 Revision 0 9 Revision 0 9

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD 9520-0002-013F 235706.83 669375.78 9520-0002-014F 235706.83 669465.37 9520-0002-015F 235629.24 669420.58 9520-0002-016F 235930.63 669114.38 9520-0002-017F 235945.94 669124.95 9520-0002-018F 235912.47 669322.50 9520-0002-019F 235814.98 669514.90 9520-0002-020F 235886.05 669156.64 Procedure RPM 5.1-11 specifies that 5% of the samples are required to be selected for HTD analysis. Two (2) soil samples, or about 10% of the number of samples that would be used for non-parametric statistical testing were randomly selected for HTD radionuclide analysis using the Microsoft Excel "RANDBETWEEN" function. Each sample was sent off-site for a full suite analysis of the HTD radionuclides specified in the LTP, Table 2-12, "Radionuclides Potentially Present at Haddam Neck Plant" and as provided in Table 2. The implementation of quality control measures as referenced by Procedure RPM 5.1-24, "Split Sample Assessment for Final Status Survey," included the collection of two (2) soil samples for "split sample" analysis by the off-site laboratory. These locations were selected randomly using the Microsoft Excel "RANDBETWEEN" function. The number of quality control soil samples was about 10% of fifteen (15) samples. The LTP specifies a required scanning coverage of 10% to 100% for outdoor Class 2 areas. The fraction of scanning coverage was determined during the DQO process with the total amount and location(s) based on the likelihood of finding elevated activity during FSS, Based on the historical site assessment, the characterization data available, and the use of the survey unit to store spoils from remediation, it was determined that scanning was required in four (4) separate areas. The total surface area to be scanned was approximately 40% of the survey unit. One of the scan areas provided 100% coverage of the area where, based on a review of the 1980 survey maps, the discrete source of elevated activity was found. A map of the scan grid locations is provided in . Revision 0 10

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD For this Class 2 survey unit, the "Investigation Level" for area scanning'and soil sample measurement results are those levels specified in LTP, Table 5-8. Table 4 provides a synopsis of the survey design. Survey Unit Land Area 9,720 m' Based on AutoCAD-LT Type I and Type 2 errors were 20 0.05, sigma was 0.037 pCi/g, Number of Measurements (15 systematic grid) the LBGR was adjusted to 5.31 (5 biased) to maintain Relative Shift in the range of I and 3 Grid Spacing 27.4 mi Based on triangular grid Operational DCGL 5.38 Ci/g Cs- 137 Administratively set to achieve 17 mrem/yr TEDE (I) The Operational DCGL meets Soil Investigation Level 5.38 pCi/g Cs-137 the LTP criteria for a Class 2 survey unit Scan Survey Area Approximately 40% The LTP requires >10% area eof the area coverage for Class 2 survey units Scan Investigation Level' Detectable over Administratively set to achieve background 17 mrem/yr TEDE 1) (1)The allowable dose for soil in this survey unit is 17 mrem/yr TEDE as the bounding dose firom existing and future groundwater has been established based on field data (reference CY memo ISC 06-024)

5. SURVEY IMPLEMENTATION FSS field activities were conducted under Work Plan and Inspection Record (WP&IR) 2006-0038. The WP&IR package included a detailed FSS plan, job safety analysis, job planning checklist and related procedures for reference.

Daily briefings were conducted to discuss the expectations for job performance and the safety aspects of the survey. The "Daily Survey Journal" was used to document field activities and other information pertaining to the FSS. Four (4) scan areas were established that constituted approximately 40% of the surface area of Survey Unit 9520-0002. Grid lines, one meter wide, were painted on the ground of the scan area. A background survey was performed

  -around thesurvey-uitand--it-was determinied-thlat,-using a -Eb5li-n--E:600-witf-a SPA-3 sodium iodide detector, background ranged from 5,350 counts per minute (cpm) up to 8,940 cpm.

The scan areas were established and scanned for elevated readings (see Attachment 2 for all scan results). Scanning was performed with an Eberline E-600 using a SPA-3 sodium iodide detector. The E-600 was operated in the rate-meter mode and used with audio response. The probe was positioned as close Revision 0 I1I Revision 0 11

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD to the ground as possible and was moved at a scan speed of about 0.5 meters per second. Approximately 40% of the survey unit was scanned. Measurement locations were identified in North American Datum (NAD) 1927 coordinates using GPS coordinates; sample locations were identified and marked with a surveyor's flag or paint for identification. At each sample location, a one (1) meter radius around the sample flag or paint mark was scanned for elevated radiation levels. Twenty-four (24) surface soil samples were collected and packaged in accordance with Haddam Neck Plant (HNP) Procedure RPM 5.1-3, "Collection of Sample Media for Final Status Survey" and. FSS design. Samples were controlled, transported, stored, and transferred to the off-site laboratory using Chain-of-Custody (COC) protocol in accordance with Procedure RPM 5.1-5, "Chain of Custody for FinalStatus Survey Samples." Two (2) samples (9520-0002-008F and 9520-0002-015F) were randomly selected for HTD radionuclide analysis. The implementation of survey specific quality control measures included the collection of two (2) samples (9520-0002-01 IF and 9520-0002-012F) for "split sample" analysis.

6. SURVEY RESULTS All field survey activities were conducted between October 9, 2006 and October 16, 2006.

The sample locations identified in the FSS plan were scanned over approximately a one (1) meter radius for elevated radiation levels. Table 5 provides an overview of the scan results for sample measurement locations. Scan results are provided in Attachment 2.

                ..Tab!e 5. - Scan Result fr SampeMeasuremen tiocations Sample            H1iges led(I
     .. ,Measuremet              Read     -    ý-                  A ctio  lev, (2.
         ~Location               (cpm)      .     --

1 8.24 8.87 NO 2 6.41 8.59 NO 4 8.22 8.39 NO 5 7.53 9.96 NO 6 7.02 9.07 NO 7 7.03 7.50 NO 8 7.87 8.56 NO Revision 0 12 Revision 0 12

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD SampI e :Highet Lo~ggd Meas ,urement .,Reading Aco~i ' Actin L~evel kj~ton .(kp)A-9 7.18 8.21 NO 10 6.01 6.76 NO 11 7.51 7.85 NO 12 6.97 7.02 NO 13 6.72 8.43 NO 14 7.07 8.48 NO 15 6.64 6.94 NO 1-6 7.38 10.00 NO 17 7.98 8.25 NO 18 6.36 6.98 NO 19 6.16 7.25 NO 20 8.00 8.50 NO (1) The action level is based on a measurement above ambient background in accordance with the FSS plan (2) The FSS plan requires movement of the sample measurement location to the area within the I meter radius yielding the response above the action level The scan areas, that comprised approximately 40% of the total surface area for the survey unit, were scanned for elevated radiation levels. The areas were scanned in accordance with the FSS plan on October 9, 2006 through October 16, 2006. Several elevated measurement locations were identified during scanning. Table 6 provides an overview of the scan area survey. Scan results are provided in Attachment 2. Tab~le 6"--S'can Ar-ea Resul.ts' Highest -Eeae. Scan~Logged.Action -Level"' Eevte) Area, Readings. Ideritification (2) enetgain 1 9.40 7.56 9520-02-ER 9520-0002-024F 16-1 None - no 2 7.88 9.17 elevated areas None identified Revision 0 13 Revision 0 '3

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD

                                               - Tble6S7§caniAiea Results.,                                               .~           .....      ,
                                           * *"f'- *:;**"**J-Acton£5e~e*,:-..,.  .      .
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Scan. ýJ gg ýVeOe investiga ion.!ý' Area ding ~ Re - . l~cj )~ - Reading, .~

                                                        ...      ~~          .         Identification                2.                    Smlp 3                 9.14                        7.64                        9520-02-ER 03                          9520-0002-023F 10-1 9520-02-ER                         9520-0002021F 4                 9.43                        9.03                                     10-1 9520-02-ER                         9520-0002-022F 10-2 (1)The action level is based on a measurement above ambient background (2)ER is an abbreviation associated with the barcodes used in the field where ER stands for Elevated Reading The off-site laboratory employed for the radiological analyses of samples was General Engineering Laboratories, LLC. The laboratory analyzed the fifteen (15) samples collected for non-parametric statistical testing, the associated field splits, the five (5) biased samples, and the four (4) confirmatory samples using gamma spectroscopy. Gamma spectroscopy analysis was performed to the required MDCs. Gamma spectroscopy results identified some radionuclides meeting the accepted criteria for detection (i.e., a result greater than two standard deviations uncertainty). However, Cs-137 was the only radionuclide reported in concentrations exceeding the de-selection criteria.

Cs-137 was identified in thirteen (13) of the fifteen (15) samples collected for non-parametric statistical testing. Cs-137 was the primary radionuclide confirming the DQOs. The mean of the gamma spectroscopic analysis results for the sample population indicated that Cs-I 37 was present at levels lower than the concentrations of Cs-137 found in soil at off-site locations within the vicility of the HNP as presented in the Health Physics TSD BCY-HP-0063. A summary of the fifteen (15) samples collected for non-parametric statistical testing results is provided in Table 7. Tal~eJ 7'umry o-o iag- . ... .. ... 952 0:0 02=00 1F ....... 3. 6 02 . . ............ .0 07 ..... . ..... 9520-0002-002F 9.53E-02 0.018 9520-0002-003F 3.16E-02 0.006 9520-0002-004F 1.13E-01 0.021 9520-0002-005F 0.OOE+00 0.000 Revision 0 14 Revision 0 14

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD

      -- ai          m     . S      Sam               u Its  r theeStastical Sampe S, te   nmbcio ,                                                              orte 9520-0002-006F                      5.30E-02                             0.010 9520-0002-007F                      1.16E-O1                             0.022 9520-0002-008F                      8.OIE-02.                            0.015 9520-0002-009F                      8.34E-02                             0.016 9520-0002-01 OF                     4.16E-02                             0.008 9520-0002-01 IF                     9.08E-02                             0.017 9520-0002-012F                      3.30E-01                             0.061 9520-0002-013F                      2.03E-01                             .0.038 9520-0002-014F                      9.68E-02                             0.018 9520-0002-015F                      1.67E-01                             0.031 (1) The Operational DCGL from Table 2 is 5.38 pCi/g for Cs-137 to achieve 17 mrem/yr TEDE The off-site laboratory also processed two (2) samples for HTD analysis as required by the sample plan.                The requested analyses included alpha spectroscopy, gas proportional counting, and liquid scintillation depending on the radionuclide and the measurement method. All analyses met the required MDC.

As previously stated in Section 4 of this report, the criteria for de-selection of a radionuclide is a concentration that is less than 5% of the Operational DCGL for individual radionuclides and less than 10% of the Operational DCGLs for aggregates. Sr-90 and Tc-99 were the only HTDs, which by analysis, met the criteria for detection (i.e., a result greater than two standard deviations uncertainty). The highest result for both Sr-90 and Tc-99 was at about 4% of the Operational DCGL.

                                                                             ...........
                                                                                  .............

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9520-0002-008F 2.74E-02 0.026 1.48E-01 0.017 9520-0002-015F 3.54E-02 0.034 2.85E-01 0.033 (1) The Operational DCGL from Table 2 is 1.05 pCi/g for Sr-90 and 8.57 for Tc-99 to achieve 17 mrem/yr TEDE Revision 0 is

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD Five (5) biased samples were collected at locations selected by FSS Supervision based on professional judgment and observation. Gamma spectroscopy analysis was performed by the off-site laboratory to the required MDC. 9520-0002-016F 5.30E-02 0.032 9520-0002-017F 4.22E-02 0.038 9520-0002-018F 1.19E-01 0.029 9520-0002-019F 1.07E-01 0.031 9520-0002-020F 6.19E-02 0.052 (1) The Operational DCGL from Table 2 is 5.38 pCi/g for Cs-137 to achieve 17 mrem/yr TEDE

7. QUALITY CONTROL The off-site laboratory processed the split samples and performed gamma spectroscopy analysis. Ten percent (10%) of the samples were selected for analysis, which exceeds the 5% minimumn required by the LTP. The data were evaluated using USNRC acceptance criteria specified in Inspection Procedure 84750 as detailed in HTNP Procedure RPM 5.1-24, "Split Sample Assessment for Final Status Survey". There was acceptable agreement between the field split results at both locations (9520-0002-011 and 9520-0002-012).

The sample analysis vendor, General Engineering Laboratories, LLC, maintains quality control and quality assurance plans as part of normal operation. Refer to Attachment 4 for data and data quality analysis results. analysis, whicho %mnmmrqie yteLP hedaawr fced th

8. INVESTIGATIONS UNRAND evauaed RESULTS sigacepane citri spciiedinInpecation Pocd ure Four confirmatory samples were collected from scan area 1, scan area 3 and scan area 4 at locations exhibiting9950 resuts-00bo2-lo2tion elevated scan readings. The 2E02-01ad92000002 .02 samples are denoted as shown in Table 6, with the sample results shown in Table 10 below.

9520-0002-021F90E0 2 9520-0002-023 F 4.19E-02 0.026 9520-0002-024F 4.69E-02 0.026 (1) The Operational DCGL from Table 2 is 5.38 pCi/g for Cs-137 to achieve 17 mrem/yr TEDE Revision 0 16 Revision 0 16

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD

9. REMEDIATION AND RESULTS Historically, no radiological remedial action as described by MARSSIM Section 5.4 was performed in this survey unit prior to or as a result of the FSS. Health Physics TSD BCY-HP-0078, "ALARA Evaluation of Soil Remediation in Support of Final Status Survey, " determined that remediation beyond that required to meet the release criteria is unnecessary and that the remaining residual radioactivity in soil was ALARA.

10. CHANGES FROM THE FINAL STATUS SURVEY PLAN No changes were made to the FSS plan.

11. DATA QUALITY ASSESSMENT (DQA)

The DQO sample design and data were reviewed in accordance with Procedure RPM 5.1-23, "Data Quality Assessment," for completeness and consistency. The sampling design had adequate power as indicated by the Retrospective Power Curve. The Sign Test was performed on the data and compared to the original assumptions of the DQOs. The evaluation of the Sign Test results demonstrates that the survey unit passes the unrestricted release criteria, thus, the null hypothesis is rejected. Documentation was complete and legible. Surveys and sample collection were consistent with the DQOs and were sufficient to ensure that the survey unit was properly designated as Class 2. The preliminary data review consisted of calculating basic statistical quantities (e.g., mean, median, standard deviation). The mean and median values are well below the Operational DCGL. Also, the retrospective power curve shows that a sufficient number of samples were collected to achieve the desired power. Therefore, the survey unit meets the unrestricted release criteria with adequate power as required by the DQOs. For Cs- 137, the range of the data, about four (4) standard deviations, was not a particularly large variation considering that the levels were essentially at existing environmental levels where such variation is to be expected. The difference between the mean and median was about 15% of the standard deviation which indicates slight skewness in the data. The data was represented graphically through posting plots, a frequency plot, and a quantile plot. The frequency plot indicates positive _skewness as confirmed by the calculated skew of 1.66. All data, assessments, and graphical representations are provided in Attachment 4.

12. ANOMALIES No anomalies were noted.

Revision 0 17

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD

13. CONCLUSION Survey Unit 9520-0002 has met the final DQOs of the FSS plan. The ALARA criteria for soils as specified in Chapter 4 of the LTP were achieved. Elevated Measurement Comparison and remediation was not required.

Cs-137 was used for statistical testing to determine the adequacy of the survey unit for FSS. The sample data passed the Sign Test. The null hypothesis was rejected. The Retrospective Power Curve generated using COMPASS shows adequate power was achieved. The survey unit is properly designated as Class 2. The dose contribution from soil is less than 1 mrem/yr TEDE based on the average concentration of the samples used for non-parametric statistical sampling. This survey area is affected by existing groundwater (reference CY memo ISC 06-024); therefore the dose contribution from existing groundwater is bounded at two (2) mnremryr TEDE. This survey unit is not considered impacted by future groundwater radioactive contamination, as there are no underground structures, systems or components containing residual radioactive material within the groundwater saturated zone in the area (reference CY memo ISC 06-024); therefore, the dose contribution from future groundwater is zero (0) mremnyr TEDE. The average total dose from residual radioactivity in this survey unit, including exposures from the three (3) components as described in Section 3, that is, residual radioactivity in soil, existing groundwater radioactivity, and future groundwater radioactivity from the burial of concrete foundations or footings from site buildings containing residual radioactivity, will not exceed 3 mrem/yr TEDE. Therefore, Survey Unit 9520-0002 is acceptable for unrestricted release.

14. ATTACHMENTS 14.1 Attachment 1 - Figures 14.2 Attachment 2 - Scan Results 14.3 Attachment 3 - Laboratory Results 14.4 Attachment 4 - DQA Results Revision I 18

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD ATTACHMENT 1 (FIGURES)

so 01; S~sten 8w-dhmark I;' RefmWlC Coord~Inote Noeffthig - 236594,36 / Eoatlng - 668136.14

               =1Z

_-CONNEC7r7C*rr RMR-- Connecticut Yankee Atomic Power Company. Site Map With Reference To Survey Unit 9520-0002

Legend In 0 Sample Point 7 0 25 50 IFm~t Connecticut Yankee Atomic Power Company Survey Unit 9520-0002 FinalStatus Survey Design

Legend 0.04 0 25 50 SFet 0.10 Notes 0.08 Reported Concentrationsin pCi/g 0.11 0.03 Connecticut Yankee Atomic Power Company Survey Unit 9520-0002FinalStatus Survey Cs-137Posting Plot

Legend 12 = Scan Area 25 50 N;- Fee Notes Backgroundrangedfrom 5.4 kcpm to 8.9 kcpm as deterninedby an e-600 with SPA-3 Probe Refer to Table 6 for the scan area results Scan Aiea 3 Scan Area 2 Connecticut Yankee Atomic Power Company Survey Unit 9520-0002 FinalStatus Survey Scan Areas

Legend

                                                                                         = Scan Area 0          SSamplePoint 0           25           50 IFeet Notes Refer to Table 9 for biasedsample results Refer to Table 10 for confirnatorysample results Sca"i.Area 2 2

Connecticut Yankee Atomic Power Company Survey Unit 9520-0002 FinalStatus Survey Biased and Confirmatory Samples

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD ATTACHMENT 2 (SCAN RESULTS)

Survey Release Record Sample Location Scan Results Survey Unit 9520-0002 Background Action Level Results Above Log Date Loq Time E600 SIN Probe SIN Sample Name (cpM) (CPM) AL 9520-02-SL-00-01-0 7.62E+03 8.87E+03 8.24E+03 10/9/2006 10:49:00 1105 1012 9520-02-SL-00-02-0 7.36E+03 8.59E+03 6.41 E+03 10/9/2006 11:01:00 1105 1012 9520-02-SL-00-03-0 8.67E+03 1.OOE+04. 1.04E+04 + 10/9/2006 7:48:00 1105 1012 9520-02-SL-00-04-0 7.18El:+03 8.39E+03 8.22E+03 10/9/2006 8:12:00 1105 1012 9520-02-SL-00-05-0 8.63E+03 9.96E+03 7.53E+03 10/9/2006 9:45:00 1105 1012 9520-02-SL-00-06-0 7.81 E+03 9.07E+03 7.02E+03 10/9/2006 10:23:00 1105 1012 9520-02-SL-00-07-0 6.36E+03 7.50E+03 7.03E+03 10/9/2006 11:11:00 1105 1012 9520-02-SL-00-08-0 7.34E+03 8.56E+03 7.87E+03 10/9/2006 9:30:00 1105 1012 9520-02-SL-00-09-0 7.01 E+03 8.21 E+03 7.18E+03 10/9/2006 10:08:00 1105 1012 9520-02-SL-00-10-0 5.68E+03 6.76E+03 6.01E+03 10/9/2006 13:12:00 1105 1012 9520-02-S L-00-11-0 6.68E+03 7.85E+03 7.51 E+03 10/9/2006 13:46:00 1105 1012 9520-02-SL-00-12-0 5.92E+03 7.02E+03 6.97E+03 10/9/2006 11:25:00 1105 1012 9520-02-SL-00-1 3-0 7.22E+03 8.43E+03 6.72E+03 10/9/2006 13:37:00 1105 1012 9520-02-SL-00-1 4-0 7.26E+03 8.48E+03 7.07E+03 10/9/2006 13:35:00 1105 1012 9520-02-SL-00-1 5-0 5.85E+03 6.94E+03 6.64E+03 10/9/2006 14:12:00 1105 1012 9520-02-SL-00-16-0 8.67E+03 1.OOE+04 7.38E+03 10/9/2006 7:34:00 1105 1012 9520-02-SL-00-17-0 7.05E+03 8.25E+03 7.98E+03 10/9/2006 10:35:00 1105 1012 9520-02-SL-00-1 8-0 5.88E+03 6.98E+03 6.36E+03 10/9/2006 14:27:00 1105 1012 9520-02-SL-00-19-0 6.13E+03 7.25E+03 6.16E+03 10/9/2006 13:57:00 1105 1012 9520-02-SL-00-20-0 7.28E+03 8.50E+03 8.00E+03 10/9/2006 7:59:00 1105 1012 AL - Action Level

Survey Release Record Scan Area Results Survey Unit 9520-0002 9520-0002 SCAN AREA 1 Background Action Level Results Above Log Date Log Time E600 SIN Probe SIN Sample Name (CPM) (cPm) AL 9520-02-SC-01-01-0 6.74E+03 7.91 E+03 6.27E+03 10/13/2006 8:22:00 1107 1003 9520-02-SC-01-02-0 5.77E+03 6.85E+03 6.06E+03 10/13/2006 8:27:00 1107 1003 9520-02-SC-01-03-0 6.01 E+03 7.12E+03 6.10E+03 10/13/2006 9:39:00 1107 1003 9520-02-SC-01-04-0 5.99E+03 7.10E+03 5.55E+03 10/13/2006 9:46:00 1107 1003 9520-02-SC-01-05-0 6.13E+03 7.25E+03 5.55E+03 10/13/2006 9:52:00 1107 1003 9520-02-SC-01-06-0 5.71 E+03 6.79E+03 5.21 E+03 10/13/2006 10:00:00 1107 1003 9520-02-SC-01-07-0 5.56E+03 6.62E+03 5.36E+03 10/13/2006 10:07:00 1107 1003 9520-02-SC-01-08-0 5.68E+03 6.76E+03 5.94E+03 10/13/2006 10:12:00 1107 1003 9520-02-SC-01-09-0 5.57E+03 6.64E+03 6.OOE+03 10/13/2006 10:19:00 1107 1003 9520-02-SC-01-10-0 5.67E+03 6.75E+03 6.04E+03 10/13/2006 10:23:00 1107 1003 9520-02-SC-01-11 -0 5.35E+03 6.39E+03 5.55E+03 10/13/2006 10:33:00 1107 1003 9520-02-SC-01-12-0 5.74E+03 6.82E+03 5.66E+03 10/13/20.06 10:37:00 1107 1003 9520-02-SC-01-13-0 5.65E+03 6.72E+03 5.93E+03 10/13/2006 10:42:00 1107 1003 9520-02-SC-01-14-0 6.63E+03 7.79E+03 6.28E+03 10/13/2006 10:46:00 1107 1003 9520-02-SC-01-15-0 6.14E+03 7.26E+03 6.41 E+03 10/13/2006 10:53:00 1107 1003 9520-02-SC-01-16-0 6.42E+03 7.56E+03 6.39E+03 10/1312006 11:01:00 1107 1003 9520-02-ER-01-16-1 6.42E+03 7.56E+03 9.40E+03 + 10/16/2006 13:23:00 1105 1012 9520-02-SC-01-17-0 7.92E+03 9.19E+03 6.04E+03 10/13/2006 11:07:00 1107 1003 9520-02-SC-01-18-0 6.55E+03 7.71 E+03 6.13E+03 10/13/2006 11:12:00 1107 1003 9520-02-SC-01-19-0 6.30E+03 7.43E+03 6.46E+03 10/13/2006 11:20:00 1107 1003 9520-02-SC-01-20-0 6.92E+03 8.11E+03 6.87E+03 10/13/2006 11:25:00 1107 1003 9520-02-SC-01-21-0 7.12E+03 8.32E+03 7.93E+03 10/13/2006 13:39:00 1111 1004 8.99E+03 6.61 E+03 ........... i)j10/13/20-06 9520-02-SC-01-22-0 7.73E+03 13:41 -00 1004 9520-02-SC-01-23-0 7.05E+03 8.25E+03 7.96E+03 10/13/2006 13:44:00 1111 1004 9520-02-SC-01-24-0 8.53E+03 9.85E+03 7.75E+03 10/13/2006 13:50:00 1111 1004 9520-02-SC-01-25-0 8.43E+03 9.74E+03 7.33E+03 10/13/2006 13:53:00 1111 1004 9520-02-SC-01-26-0 7.66E+03 8.91 E+03 7.94E+03 10/13/2006 13:59:00 1111 1004 9520-02-SC-01-27-0 8.94E+03 1.03E+04 8.68E+03 10/13/2006 14:04:00 1111 10/13/2006 1004 9520-02-SC-01-28-0 8.60E+03 9.92E+03 7.37E+03 14:09:00 AL - Action Level

Survey Release Record Scan Area Results Survey Unit 9520-0002 9520-02-SC-01-29-0 8.10E+03 9.39E+03 9.15E+03 10/13/2006 14:15:00 1111 1004 9520-02-SC-01-30-0 7.80E+03 9.06E+03 8.63E+03 10/13/2006 14:19:00 1111 1004 9520-02-SC-01-31-0 8.36E+03 9.67E+03 8.79E+03 10/13/2006 14:23:00 1111 1004 9520-02-SC-Ol.-32-0 7.81E+03 9.07E+03 7.63E+03 10/13/2006 14:26:00 1111 1004 9520-02-SC-01-33-0 7.41 E+03 8.64E+03 7.55E+03 10/13/2006 14:29:00 1111 1004 9520-02-SC-01-34-0 7.33E+03 8.55E+03 6.88E+03 10/13/2006 14:32:00 1111 1004 9520-02-SC-01 0 7.24E+03 8.46E+03 7.04E+03 10/13/2006 14:35:00 1111 1004 9520-02-SC-01-36-0 7.66E+03 8.91E+03 6.57E+03 10/13/2006 14:41:00 1111 1004 9520-02-SC-01-37-0 7.20E+03 8.41 E+03 7.54E+03 10/13/2006 14:45:00 1111 1004 9520-02-SC-01-38-0 6.64E+03 7.80E+03 6.58E+03 10/13/2006 14:49:00 1111 1004 9520-02-SC-01-39-0 7.45E+03 8.68E+03 7.24E+03 10/13/2006 14:52:00 1111 1004 9520-02-SC-01-40-0 6.37E+03 7.51E+03 7.29E+03 10/13/2006 14:55:00 1111 1004 9520-02-SC-01-41-0 5.75E+03 6.83E+03 6.11E+03 10/13/2006 15:00:00 1111 1004 9520-02-SC-01-42-0 5.52E+03 6.58E+03 6.16E+03 10/13/2006 15:03:00 1111 1004 9520-0002 SCAN AREA 2 Background Action Level Results Above Log Date Log Time E600 SIN Probe S/N Sample Name (cnm) (C8M) AL 9520-02-SC-02-01-0 7.13E+03 8.342E+03 6.03E+03 10/12/2006 10:14:00 1105 1012 9520-02-SC-02-02-0 7.12E+03 8.32E+03 6.71 E+03 10/12/2006 10:19:00 1105 1012 9520-02-SC-02-03-0 7.22E+03 8.43E+03 6.81 E+03 10/12/2006 10:24:00 1105 1012 9520-02-SC-02-04-0 6.43E+03 7.58E+03 6.42E+03 10/12/2006 10:30:00 1105 1012 9520-02-SC-02-05-0 7.90E+03 9.17E+03 .7.88E+03 10/12/2006 10:54:00 1105 1012 9520-02-SC-02-06-0 6.27E+03 7.40E+03 7.29E+03 10/12/2006 11:00:00 1105 1012 9520-02-SC-02-07-0 7.07E+03 8.27E+03 6.28E+03 10/12/2006 11:03:00 1105 1012 --9520:02:SC:02-08-0 724 E+03 T- ....8:46E+03 .. '7:55E+03 -10/12/2006- --11:08:00- '1105- 1012 9520-02-SC-02-09-0 6.60E+03 7.76E+03 6.59E+03 10/12/2006 11:12:00 1105 1012 9520-02-SC-02-1 0-0 6.94E+03 8.13E+03 6.20E+03 10/12/2006 11:17:00 1105 1012 9520-02-SC-02-1 1-0 6.92E+03 8.11E+03 6.99E+03 10/12/2006 11:20:00 1105 1012 9520-02-SC-02-12-0 6.80E+03 7.98E+03 6.33E+03 10/12/2006 13:02:00 1105 1012 9520-02-SC-02-13-0 6.53E+03 7.68E+03 6.84E+03 10/12/2006 13:06:00 1105 1012 9520-02-SC-02-14-0 7.10E+03 8.30E+03 6.58E+03 10/12/2006 13:08:00 1105 1012 AL - Action Level

Survey Release Record Scan Area Results Survey Unit 9520-0002 9520-02-SC-02-15-0 7.05E+03 8.25E+03 6.72E+03 10/12/2006 13:13:00 1105 1012 9520-02-SC-02-16-0 6.66E+03 7.83E+03 6.64E+03 10/12/2006 13:16:00 1105 1012 9520-02-SC-02-17-0 6.85E+03 8.03E+03 7.12E+03 10/12/2006 13:21:00 1105 1012 9520-02-SC-02-1 8-0 6.50E+03 7.65E+03 6.93E+03 10/12/2006 13:24:00 1105 1012 9520-0002 SCAN AREA 3 Background Action Level Results Above Log Date Log Time E600 S/N Probe S/N Sample Name ICm) AL (cpm) 9520-02-SC-03-01 -0 6.66E+03 7.83E+03 6.92E+03 10/11/2006 10:24:00 1105 1012 9520-02-SC-03-02-0 6.67E+03 7.84E+03 6.44E+03 10/11/2006 10:28:00 1105 1012 9520-02-SC-03-03-0 7.15E+03 8.36E+03 6.38E+03 10/11/2006 10:32:00 1105 1012 9520-02-SC-03-04-0 6.53E+03 7.68E+03 6.50E+03 10/11/2006 10:38:00 1105 1012 9520-02-SC-03-05-0 7.OOE+03 8.19E+03 7.32E+03 10/11/2006 10:43:00 1105 1012 9520-02-SC-03-06-0 6.30E+03 7.43E+03 6.87E+03 10/11/2006 11:-01:00 1105 1012 9520-02-SC-03-07-0 7.84E+03 9.1 OE+03 6.99E+03 10/11/2006 11:05:00 1105 1012 9520-02-SC-03-08-0 6.74E+03 .7.91 E+03 6.56E+03 10/11/2006 11:09:00 1105 1012 9520-02-SC-03-09-0 7.58E+03 8.82E+03 6.85E+03 10/11/2006 11:13:00 1105 1012 9520-02-SC-03-1 0-0 6.49E+03 7.64E+03 7.38E+03 10/11/2006 11:19:00 1105. 1012 9520-02-ER-03-10-1 6.49E+03 7.64E+03 9.14E+03 + 10/12/2006 8:03:00 1105 101.2 9520-02-SC-03-1 1-0 7.36E+03 8.59E+03 7.72E+03 10/11/2006 13:37:00 1105. 1012 9520-02-SC-03-12-0 6.61 E+03 7.77E+03 6.53E+03 10/11/2006 13:39:00 1105 1012 9520-02-SC-03-13-0 6.84E+03 8.02E+03 6.64E+03 10/11/2006 13:41:00 1105 1012 9520-02-SC-03-14-0 6.42E+03 7.56E+03 7.29E+03 10/11/2006 13:45:00 1105 1012 9520-02-SC-03-15-0 7.50E+03 8.74E+03 6.82E+03 10/11/2006 13:50:00 1105 1012 9520-02-SC-03-16-0 7.17E+03 8.38E+03 7.14E+03 10/11/2006 13:54:00 1105 1012 -9520-02-SC-03-17 -*-7.-55E+03 ... 879E+03

                                     -..--        --- . 6;64E+03-                  --1-3.5600-  --1-1   -101  9520-02-SC-03-18-0       6.75E+03       7.92E+03        6.81 E+03       10/11/2006   13:59:00    1105        1012 9520-02-SC-03-19-0       7.25E+03       8.47E+03        7.30E+03        10/11/2006   14:01:00    1105        1012 9520-02-SC-03-20-0       7.35E+03       8.57E+03        6.48E+03        10/11/2006   14:03:00    1105        1012 9520-02-SC-03-21 -0      6.52E+03       7.67E+03        6.24E+03        10/11/2006   14:05:00    1105        1012 9520-02-SC-03-22-0       6.65E+03       7.81E+03        6.65E+03        10/11/2006   14:07:00    1105        1012 9520-02-SC-03-23-0       6.90E+03       8.09E+03        6.79E+03        10/11/2006   14:09:00    1105        1012 AL - Action Level

Survey Release Record Scan Area Results Survey Unit 9520-0002 9520-02-SC-03-24-0 6.59E+03 7.75E+03 6.32E+03 10/11/2006 14:11:00 1105 1012 9520-02-SC-03-25-0 7.09E+03 8.29E+03 6.86E+03 10/11/2006 14:15:00 1105 1012 9520-02-SC-03-26-0 7.34E+ý03 8.56E+03 7.75E+03 10/11/2006 14:16:00 1105 1012 9520-02-SC-03-27-0 8.93E+03 1.03E+04 9.39E+03 10/11/2006 14:17:00 1105 1012 9520-02-SC-03-28-0 8.76E+03 1.01 E+04 8.42E+03 10/11/2006 14:18:00 1105 1012 9520-0002 SCAN AREA 4 Background Action Level Results Above Log Date Log Time E600 SIN Probe SIN Sample Name AL (cPM) (cDm) 9520-02-SC-04-01 -0 7.31 E+03 8.53E+03 6.94E+03 10/10/2006 9:30:00 1105 1012 9520-02-SC-04-02-0 7.81 E+03 9.07E+03 7.45E+03 10/10/2006 9:37:00 1105 1012 9520-02-SC-04-03-0 7.58E+03 8.82E+03 7.19E+03 10/10/2006 9:49:00 1105 1012 9520-02-SC-04-04-0 7.47E+03 8.70E+03 7.67E+03 10/10/2006 10:02:00 1105 1012 9520-02-SC-04-05-0 7.60E+03 8.84E+03 6.91 E+03 10/10/2006 10:33:00 1105 1012 9520-02-SC-04-06-0 7.53E+03 8.77E+03 7.33E+03 10/10/2006 10:41:00 1105 1012 9520:02-SC-04-07-0 7.73E+03 8.99E+03 7.74E+03 10/10/2006 10:51:00 1105 1012 9520-02-SC-04-08-0 7.39E+03 8.62E+03 7.68E+03 10/10/2006 12:53:00 1105 1012 9520-02-SC-04-09-0 7.26E+03 8.48E+03 7.02E+03 10/10/2006 13:01:00 1105 1012 9520-02-SC-04-1 0-0 7.77E+03 9.03E+03 8.28E+03 10/10/2006 13:12:00 1105 1012 9520-02-ER-04-10-1 7.77E+03 9.03E+03 9.43E+03 + 10/11/2006 8:30:00 1105 1012 9520-02-ER-04-10-2 7.77E+03 9.03E+03 8.96E+03 10/11/2006 8:31:00 1105 1012 AL - Action Level

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD ATTACHMENT 3 (LABORATORY DATA)

General Narrative 1

General Narrative for Connecticut Yankee Atomic Power Co. Work Order: 174224 SDG: MSR#06-1371 October 23, 2006 Laboratory Identification: General Engineering Laboratories, LLC 2040 Savage Road Charleston, South Carolina 29407 (843) 556-8171 Summary Sample receipt The samples arrived at General Engineering Laboratories, LLC, Charleston, South Carolina on October 17, 2006 for analysis. Shipping container temperatures were checked, documented, and within specifications. The samples were delivered with proper chain of custody documentation and signatures. All sample containers arrived without any visible signs of tampering or breakage. Sample Identification The laboratory received the following samples: Laboratory Sample Identification Description 174224001 9520-0002-016F 174224002 9520-0002-003F 174224003 9520-0002-020F 174224004 9520-0002-004F 174224005 9520-0002-005F 174224006 9520-0002-008F 174224007 9520-0002-009F 174224008 9520-0002-006F 174224009 9520-0002-017F 174224010 9520-0002-001F 174224011 9520-0002-002F 174224012 9520-0002-007F 174224013 9520-0002-012F 174224014 9520-0002-012FS 174224015 9520-0002-OIOF 174224016 9520-0002-014F 174224017 9520-0002-013F 174224018 9520-0002-01 IF 174224019 9520-0002-01 IFS 174224020 9520-0002-019F 174224021 9520-0002-015F 174224022 9520-0002-018F 174224023 9520-0002'021F 174224024 9520-0002-022F 174224025 9520-0002-023F GENERAL ENGINEERING LABORATORIES, LLC a Member of THE GEL GROUP, INC. P.O. BOX 30712 Charleston, SC 29417

• 2040 Savage Road (29407)

Phone (843) 556-8171

• FaxY43) 766-117B www.gel.com

Items of Note There are no items to note. Case Narrative Sample analyses were conducted using methodology as outlined in General Engineering Laboratories (GEL) Standard Operating Procedures. Any technical or administrative problems during analysis, data review, and reduction are contained in the analytical case narratives in the enclosed data package. Analytical Request Twenty-three soil samples were analyzed for FSSGAM. Two soil samples were analyzed for FSSALL. Data Package The enclosed data package contains the following sections: General Narrative, Chain of Custody and Supporting Documentation, Data Review Qualifier Definitions, and data from the following fractions: Radiochemistry. I certify that this data package is in compliance with the SOW, both technically and for completeness, for other than the conditions detailed above. Release of the data contained in this hard copy data package has been authorized by the Laboratory Manager or a designee, as verified by the following signature. Cheryl Jones Project Manager GENERAL ENGINEERING LABORATORIES, LLC a Member of THE GEL GROUP, INC. P.O. BOX 30712 Charleston, SC 29417

• 2040 Savage Road (29407)

Phone (843) 556-8171 ° Fao343) 766-1178 www.gel.com

List of current GEL Certifications as of 23 October 2006 State Certification Alaska UST-062 Arizona AZ0668 Arkansas 88-0651 CLIA 42D0904046 California 01151 CA Colorado GenEngLabs Connecticut PH-0169 Dept. of Navy NFESC 413 EPA WG-15J Florida/NELAP E87156 Georgia E87156 (FLUNELAP) Hawaii N/A Idaho N/A Illinois 200029 Indiana C-SC-01 Kansas E- 10332 Kentucky 90129 Louisiana 03046 Maryland 270 Massachusetts M-SCO12 Michigan 9903 Nevada SC12 New Jersey SCO02 New Mexico FL NELAP E87156 New York 11501 North Carolina 233 North Carolina Drinking W 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania 68-00485 South Carolina 10120001/10585001/10120002 Tennessee 02934 Texas TX213-2006A Texas NELAP T104704235-06-TX U.S. Dept. of Agricultur6 S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont VT87156 Virginia 00151 Washington C1641 4

Chain of Custody and Supporting Documentation 5

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-001 Major

                                                                                                    ... Chain of Custody Form                                       N.20-00 Connecticut Yankee Atomic Power Company                                                          Chi           fCutd.or                                      o.00.00 362 Injun H-lollow Road, East Hampton. CT 06424 860-267-2556                                     ' "     ..    "      ". " *             " '.. " :

Project Name: Haddain Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: Comments: Jack McCarthy 860-267-3924 Analytical Lab (Name, City, State) General Engineering Laboratories 2040 Savage Road. Charleston SC. 29407 . < 843 556 8171. Attn. Cheryl Jones Priority: [] 3 0 Dkf 1D.X 4*~ 7 D. Ej3 D. "'"" Container' 4H 22H*q'/ Sample Size-Sample Designation Date Time Media Type &Type Comment, Preservation Lab Sample ID Code Code Code 9520-0002-016F 10/9/06 0738 TS G BP X 9520-0002-003F 10/9/06 0751 TS G BP X 9520-0002-020F 10/9/06 0802 TS G BP X 9520-0002-004F 10/9/06 0815 TS G BP X 9520-0002-005F 10/9/06 0947 TS G BP X 9520-0002-008F 10/9/06 0933 TS G BP X 9520-0002-009F 10/9/06 1010 TS G BP X - 9520-0002-006F 10/9/06 1025 TS G BP X 9520-0002-017F 10/9/06 1037 TS G BP X -" 9520-0002-001F 10/9/06 1053 TS G BP X 9520-0002-002F 10/9/06 1104 TS G BP X .1 sI I

                                                                                                 -.                -..

NOTES: PO #: 002332 MSR#:06-(;7/ SSWP#NA Z LTPQA. El RadwasteQA *El Non QA Fed Ex Internal Container Temp.: `7'%Deg. r-I ups C El Hand Custody Sealed? YFV NFi

1) Relinquisi By Date/Time 2) eceived Date/Ti me Custody Seal El Other Intact?

3) Rei*it uishe By Date/Time 4peceived By Date/Time "79/.T"6-7-v 79q 7 YLf NL.N Bill of Lading #

Health Physics Procedure GPP-GGGR-R5]04-003-Attacliiiieilt B-CY-00 I Major Health Physics Procedure GPP-GGGR-R5 104-003-Attachment B-CY-00 I Major Chain of Custody Form No. 2006-00607 Connecticut Yankee Atomic Power Company 362 InJun Hollow Road, East Ilampton, CT 06424 860-267-2556 ". .." " ." "" . "" Analyses Requested Lab Use Only.. Project Name: Haddam Neck Decommissioning.' Co"ments: Contact Name & Phone: Jack McCarthy 860-267-3924 Analytical Lab (Name, City, State) General Engineering Laboratories 2040 Savage Road. Charleston SC. 29407 " 843 556 8171. Attn. Cheryl Jones .. - . Priority: E 30 Deg.14 D. 1X 7 D. E 3 D. Co.t."n"r

                                                                              .Containe'r.                                      :

Sample Size-' . .:. Sample Designation Date Time Media Type &,Type Comment, Preservation Lab Sample ID Code Code Code 9520-0002-007F 10/9/06 1115 TS G BP. X *_::...._* 9520-0002-012F 10/9/06 1128 TS G BP X . _* .. _..._ 9520-0002-012FS 10/9/06 1128 TS G BP X _._"" 9520-0002-01 OF 10/9/06 1315 TS G BP X 9520-0002-014F 10/9/06. 1338 TS G BP X :_"_ .. _._..._: 9520-0002-013F 10/9/06 1347 TS G BP X .... __*___*.__.. 9520-0002-OIIF 10/9/06 1355 TS G BP X 9520-0002-011FS 10/9/06 1355 TS G BP X 9520-0002-019F 10/9/06 1405 TS G BP X 9520-0002-015F 10/9/06 1420 TS G BP X 9520-0002-018F 10/9/06 1433 TS G BP X Samples Shipped Via: Internal Container NOTES: PO #: 002332 MSR #: 06-/37/ SSWP# NA 0 LTP QA i- Radwaste QA D] Non QA [.Fed Ex Temp.: "21,[ Deg. E UPS C E Hand Custody Sealed? Y Pf' NI]

) Relinq  lhed                               Date/Time           2)    eceived                                   Date/Time                                           Custody Seal E] Other                            Intact?

204;9u Be i- 0 "Pj Date/Timne 4 _eceived By Date/ ime 7ql/5677o 7k34 Y K N LI

3) Re qui hed By Bill of Lading# .

Health Physics Procedure GPP-GCjGR-R5]04-003-Attaciiiileilt B-CY-00 I Major Health Physics Procedure GPP-GGG R-R5 104-003 -Attachment B-CY-OO 1 Major Chain of Custody Form No. 2006-00608 Connecticut Yankee Atomic Power Company 362 In.jun 1Hollow Road, East Flampton. CT 06424 860-267-2556 .. Analyses Requested Lab Use Only Project Name: Haddam Neck Decommissioning Comments: Contact Name & Phone: Jack McCarthy 860-267-3924 Analytical Lab (Name, City, State) General Engineering Laboratories 2040 Savage Road. Charleston SC. 29407 " < 843 556 8171. Attn. Cheryl Jones 0/ Priority: D 30 D. Z 14 D. l7 D. [ 3D. Container Sample Size-Sample Designation Date Time Media Type &'rype Comment, Preservation Lab Sample ID Code Code Code. 9520-0002-021F 10/11/06 0838 TS G BP X __" 9520-0002-022F 10/11/06 . 0840 TS G BP. X __.__.-. _______________ NOTES: PO #: 002332 MSR #: 06- SSWP# NA .LTP QA [] Radwaste QA D Non QA Samples Shipped Via: Internal Container [ Fed Ex. Temp.: 9,1 Deg. L. UPS C LI Hand Custody Sealed.? y FV N 1i

1) Re lnished ,y._ Date/Time 2) Received y A.. . Date/Time Custody Seal

                                                                                                                                "    Other                        Intact?

3) ltinquished By Date/Time 4vecelved By. -ate/Time 7q)5-6 1770 4134, Y Le" N L0 Bill of Lading #

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-00 1.Major Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-00625 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: :Comments:. Jack McCarthy 860-267-3924 Analytical Lab (Name, City, State) General Engineering Laboratories 2040. Savage Road. Charleston SC. 29407 0 < 843 556 8171. Attn. Cheryl Jones uo *. Priority: [] 30 Dr;-r4 D. *' 7 D. El 3 D. Container Sample Size-Sample Designation Date Time Media Type &Type Comment, Preservation Lab Sample ID Code Code Code 9520-0002-023F 10/12/06 0807 TS G BP X T.... 1-  :.. .. .  : . . .. NOTES: PO #: 002332 MSR#: 06-1371 SSWP#NA Z LTPQA El Radwaste QA [] Non QA Samples Shipped Via: Internal Container Z Fed Ex Tefmfp.: 7';ZDeg. El ups C LI Hand Custody.Sealed? Y " Nn

1) Relinn dB .Date/Time 2) nceived By Date/Time Custody Seal :1

.1 El Other Intact?

3) Re quished By Date/Time 4) eceived By bate/ime 771E & 770 kYl7 .Y -* N 0 7

Bill of Lading#

Connecticut Yankee Statement of Work for Analytical Lab Services CY-ISC-SOW-001 Figure 1. Sample Check-in List. Date/Time Received': !Ol 7/OG E30 Work Order Number: \"-3 qz2A

• V.22q 1-4 L2z 2-9" Shipping Ccntainer ID: .ee cA1-. 5e Chain of Custody'# 'See ciof v 5-e0 I I. Custody Seals on shipping container intact? .Yes .[1 No []

2. Custody Seals dated and signed? Yes [)'No

3. Chain-of-Custody record present? Yes No

4. Cooler temperature S ee CO.I-._5 ke e-"-

5. Vermiculite/packing materials is: Wet [ ] Dry 6.: * !Number of samples in Shipping container: "t g "

7. Sample holding times exiceeded? Yes [ No

    .8. Samples have:-
           ~._jape                                           '     hazard labels',-

9. Samples are:

2 " eaking " "'* -

            .__lin           good condition

• have air bubbles ' " *"* ' "

              .         *broken .           s~  . .         . arN.*
                                                                *

10. Were any anomalies identified in sample receipt? Ye" fN L Description of anomalies (include sample numbers):

_ 11.. conditio goo Oni

                                                                        -leakin
                                                                                              ....              ..
                           - broken                                           ai     bubbles        .    .
                ,.-hv
                                                                             ""        "a                          e         "/,

Sample Custodian/Laboratory: e.' O nB " Telephoned to: C u t d a / a o a y.. . ... " _.. ... [I;)

   .40               SAMPLE RECEIPT & REVIEW FORM CONTINUATION FORM Client:   >*t" $         Date Received:  IO1- kO( 7
       -rF¢k&m                             o     _-___

7"Td 6/0 -7eq4- 2-Z 7,0c6- o~o*.oo .?ýo

                                                                & 2T 79H    q 5562   o 2>" -         7_2l6-60(o1S-

7,.5" 477o 793b -. 210 - `:2oo06-50(o-7, Z006-o06oY 5530 6,036 Iq5* 200o -l o6-o l l fi

Data Review Qualifier Definitions 12

Data Review Qualifier Definitions Qualifier Explanation A quality control analyte recovery is outside of specified acceptance criteria

• • Analyte is a surrogate compound c Result is less than value reported
• Result is greater than value reported RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank B Metals-Either presence of analyte detected in the associated blank, or MDL/IDL < sample value < PQL BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis
• Results are reported from a diluted aliquot of the sample d 5-day HOD-The 2:1 depletion requirement was not met for this sample E Organics-Concentration of the target analyte exceeds the instrument calibration range E Metals-%difference of sample and SD is >10%. Sample concentration must meet flagging criteria H Analytical holding time was exceeded h Preparation or preservation holding time was exceeded J Value is estimated N Metals-The Matrix spike sample recovery is not within specified control limits N Organics-Presumptive evidence based on mass spectral library search to make a tentative identification of the analyte (TIC). Quantitation is based on nearest internal standard response factor N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the reporting limit UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound Z Paint Filter Test-Particulates passed through the filter, however no free liquids were observed.

GENERAL ENGINEERING LABORATORIES, LLC a Member of THE GEL GROUP, INC. P.O. BOX 30712 Charleston, SC 29417

• 2040 Savage Road (29407)

Phone (843) 556-8171

• FeIJ1B3) 766-1178 www.gel.com

• 3 RADIOLOGICAL ANALYSIS 14

Radiochemistry Case Narrative Connecticut Yankee Atomic Power Co. (YANK) Work Order 174224 Method/Analysis Information Product: AIphaspec Am241, Cm, Solid ALL FSS Analytical Method: DOE EML HASL-300, Am-05-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 580396 Prep Batch Number: 580008 Dry Soil Prep GL-RAD-A-021 Batch Number: 580006 Sample ID Client ID 174224006 9520-0002-008F 174224021 9520-0002-015F 1201210037 Method Blank (MB) 1201210038 174224006(9520-0002-008F) Sample Duplicate (DUP) 1201210039 174224006(9520-0002-008F) Matrix Spike (MS) 1201210040 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-01 I REV# 14. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (QC) Information: Blank Information The blank volume is representative of the sample volume in this batch. Designated QC The following sample was used for QC: 174224006 (9520-0002-008F). QC Information All of the QC samples met the required acceptance limits. Technical Information: 15

Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis Sample 174224006 (9520-0002-008F) was recounted due to a negative result greater than three times the error. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Manual Integration No manual integrations were performed on data in this batch. Additional Comments Additional comments were not required for this sample set. Qualifier information Manual qualifiers were not required. Method/Analysis Information Product: Alphaspec Pu, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu-I 1-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 580398 Prep Batch Number: 580008 Dry Soil .Prep GL-RAD-A-021 Batch Number: 580006 Sample ID Client ID 174224006 9520-0002-008F 174224021 9520-0002-015F 1201210045 Method Blank (MB) 1201210046 174224006(9520-0002-008F) Sample Duplicate (DUP) 1201210047 174224006(9520-0002-008F) Matrix Spike (MS) 1201210048 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-0 II REV# 14. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. 16

Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (0C) Information: Blank Information The blank volume is representative of the sample volume in this batch. Designated QC The following sample was used for QC: 174224006 (9520-0002-008F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Manual Integration No manual integrations were performed on data in this batch. Additional Comments Additional comments were not required for this sample set. Qualifier information Manual qualifiers were not required. Method/Analysis Information Product: Liquid Scint Pu241, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu-1 1-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 580400 Prep Batch Number: 580008 Dry Soil Prep GL-RAD-A-021 Batch Number: 580006 Sample ID Client ID 174224006 9520-0002-008F 17

174224021 9520-0002-015F 1201210053 Method Blank (MB) 1201210054 174224006(9520-0002-008F) Sample Duplicate (DUP) 1201210055 174224006(9520-0002-008F) Matrix Spike (MS) 1201210056 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-035 REV# 8. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (0C) Information: Blank Information The blank volume is representative of the sample volume in this batch. Designated QC The following sample was used for QC: 174224006 (9520-0002-008F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Manual Integration No manual integrations were performed on data in this batch. 18

Additional Comments Additional cominents were not required for this sample set. Qualifier information Manual qualifiers were not required. Method/Analysis Information Product: Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Analytical Method:.. EML HASL 300, 4.5.2.3 Prep Method: Dry Soil Prep Analytical Batch Number: 580184 Prep Batch Number: 580004 Sample ID Client ID 174224001 9520-0002-016F 174224002 9520-0002-003F 174224003 9520-0002-020F 174224004 9520-0002-004F 174224005 9520-0002-005F 174224006 9520-0002-008F 174224007 9520-0002-009F 174224008 9520-0002-006F 174224009 9520-0002-017F 174224010 9520-0002-001F 174224011 9520-0002-002F 174224012 9520-0002-007F 174224013 9520-0002-012F 174224014 9520-0002-012FS 174224015 9520-0002-OIOF 174224016 9520-0002-014F 174224017 9520-0002-013F 174224018 9520-0002-01 IF 174224019 9520-0002-01 1FS 174224020 9520-0002-019F 1201209529 Method Blank (MB) 1201209530 174224001(9520-0002-016F) Sample Duplicate (DUIP) 1201209531 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-013 REV# 13. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information 19

Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (QC) Information: Blank Information The blank volume is representative of the sample volume in this batch. Designated QC The following sample was used for QC: 174224001 (9520-0002-016F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional cormmnents were not required for this sample set. Qualifier information Qualifier Reason Analyte Sample UI Data rejected due to high peak-width. Bismuth-212 174224012 Cesium-137 174224005 UI Data rejected due to low abundance. Cesium-134 174224002 174224004 174224005 174224007 174224008 174224013 174224014 174224016 174224017 Niobium-94 174224002 UI Data rejected due to no valid peak. Lead-212 1201209529 20

Method/Analysis Information Product: Gamma,Solid-FSS CAM & ALL FSS 226 Ingrowth Waived Analytical Method: EML HASL 300, 4.5.2.3 Prep Method: Dry Soil Prep Analytical Batch Number: 580187 Prep Batch Number: 580006 Sample ID Client ID 174224021 9520-0002-015F 174224022 9520-0002-018F 174224023 9520-0002-021F 174224024 9520-0002-022F 174224025 9520-0002-023F 1201209536 Method Blank (MB) 1201209537 174224021(9520-0002-015F) Sample Duplicate (DUP) 1201209538 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-013 REV# 13. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (QC) Information: Blank Information The blank volume is representative of the sample volume in this batch. Designated QC The following sample was used for QC: 174224021 (9520-0002-015F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were perfonned within the required holding time. Preparation Information 21

All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments The sample and the duplicate, 1201209537 (9520-0002-015F) and 174224021 (9520-0002-015F), for TI-208 did not meet the relative percent difference requirement, however they do meet the relative- error ratio requirement with value of 1.4356. Qualifier information Qualifier Reason Analyte Sample UI Data rejected due to low abundance. Americium-241 174224023 Cesium-134 174224022 174224023 174224024 Method/Analysis Information Product: GFPC, Sr90, solid-ALL FSS Analytical Method: EPA 905.0 Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 580488 Prep Batch Number: 580008 Dry Soil Prep GL-RAD-A-021 Batch Number: 580006 Sample ID Client ID 174224006 9520-0002-008F 174224021 9520-0002-015F 1201210298 Method Blank (MB) 1201210299 174224006(9520-0002-008F) Sample Duplicate (DU-P) 1201210300 174224006(9520-0002-008F) Matrix Spike (MS) 1201210301 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-004 REV# 10. Calibration Information: Calibration Information 22

All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (QC) Information: Blank Information The blank volume is representative of the sample volume in this batch. Designated QC The following sample was used for QC: 174224006 (9520-0002-008F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis Sample 1201210299 (9520-0002-008F) was recounted due to high MDA. Chemical Recoveries All chemical recoveries meet the required acceptance limits for this sample set. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. Qualifier information Manual qualifiers were not required. Method/Analysis Information Product: Liquid Scint Tc99, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Tc-02-RC Modified Analytical Batch Number: 580399 Sample ID Client ID 174224006 9520ý0002-008F 174224021 9520-0002-015F 23

1201210049 Method Blank (MB) 1201210050 174224006(9520-0002-008F) Sample Duplicate (DUP) 1201210051 174224006(9520-0002-008F) Matrix Spike (MS) 1201210052 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-005 REV# 13. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Ouality Control (QC) Information: Blank Information The blank volume is representative of the sample volumne in this batch. Designated QC The following sample was used for QC: 174224006 (9520-0002-008F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses.* Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. Qualifier information 24

Manual qualifiers were not required. Method/Analysis Information Product: Liquid Scint Fe55, Solid-ALL FSS Analytical Method: DOE RESL Fe-1, Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 580395 Prep Batch Number: 580008 Dry Soil Prep GL-RAD-A-021 Batch Number: 580006 Sample ID Client ID 174224006 9520-0002-008F 174224021 9520-0002-015F 1201210033 Method Blank (MB) 1201210034 174224006(9520-0002-008F) Sample Duplicate (DUP) 1201210035 174224006(9520-0002-008F) Matrix Spike (MS) 1201210036 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-040 REV# 3. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (QC) Information: Blank Information The blank volume is representative of the sample volume in this batch. Designated QC The following sample was used for QC: 174224006 (9520-0002-008F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information 25

All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. Qualifier information Manual qualifiers were not required. Method/Analysis Information Product: Liquid Scint Ni63, Solid-ALL FSS Analytical Method: DOE RESL Ni-1, Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 580397 Prep Batch Number: 580008 Dry Soil Prep GL-RAD-A-021 Batch Number- 580006 Sample ID Client ID 174224006 9520-0002-008F 174224021 9520-0002-015F 1201210041 Method Blank (MB) 1201210042 174224021(9520-0002-015F) Sample Duplicate (DUP) 1201210043 174224021(9520-0002-015F) Matrix Spike (MS) 1201210044 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-022 REV# 8. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. 26

Quality Control (QC) Information: Blank Information The blank volume is representative of the samplevolume in this batch.

• Designated QC The following sample was used for QC: 174224021 (9520-0002-015F).

QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this samp le set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. Qualifier information Manual qualifiers were not required. Method/Analysis Information Product: LSC, Tritium Dist, Solid-HTD2,ALL FSS Analytical Method: EPA 906.0 Modified Analytical Batch Number: 580401 Sample ID Client ID 174224006 9520-0002-008F 174224021 9520-0002-015FP 1201210057 Method Blank (MB) 1201210058 174224006(9520-0002-008F) Sample Duplicate (DUP) 1201210059 174224006(9520-0002-008F) Matrix Spike (MS) 1201210060 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-002 REV# 13. 27

Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (OC) Information: Blank Information The blank volume is representative of the sample volume in this batch. Designated QC The following sample was used for QC: 174224006 (9520-0002-008F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis Samples 1201210058 (9520-0002-008F), 174224006 (9520-0002-008F) and 174224021 (9520-0002-015F) were recounted due to high MDAs. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. Qualifier information Manual qualifiers were not required. Method/Analysis Information Product: Liquid Scint C14, Solid AI1,FSS Analytical Method: EPA EERF C-01 Modified Analytical Batch Number: 580402 Sample ID Client ID 174224006 9520-0002-008F 28

174224021 9520-0002-015F 1201210061 Method Blank (MB) 1201210062 174224021(9520-0002-015F) Sample Duplicate (DUP) 1201210063 174224021(9520-0002-015F) Matrix Spike (MS) 1201210064 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-003 REV# 8. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Ouality Control (QC Information: Blank Information The blank volume is representative of the sample volume in this batch. Designated QC The following sample was used for QC: 174224021 (9520-0002-015F). QC Information All of the QC sample' met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep[Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. 29

Qualifier information Manual qualifiers were not required. Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Review. Validation: GEL requires all analytical data to be verified by a qualified data validator. In addition, all data designated for CLP or CLP-like packaging will receive a third level validation upon completion of the data package. The following data validator verified the information presented in this case narrative: Reviewer/Date: 30

SAMPLE DATA

SUMMARY

31

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www gel.com Certificate of Analysis Report for YANK001 Connecticut Yankee Atomic Power Co. Client SDG: MSR#06-1371 GEL Work Order: 174224 The Quialifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria
  • Analyte is a surrogate compound U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Ganmma Spectroscopy--Uncertain identification ND The analyte concentration is not detected above the detection limit. The above sample is reported on a dry weight basis except where prohibited by the analytical procedure. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the Certificate of Analysis. This data report has been prepared and reviewed in accordance with General Engineering Laboratories, LLC standard operating procedures. Please direct any questions to your Project Manager, Cheryl Jones. Reviewed by 32

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analvsis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-016F Project: YANK01204 Sample ID: 174224001 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 4.86% Parameter Qualifier Result - Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Garnma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.656 +/-0.149. 0.051 +/-0.149 0.111 pCi/g MJHI 10/23/06 1057 580184 1 Americium-241 U -0.0484 +/-0.120 0.0938 +/-0.120 0.195 pCi/g Bismuth-212 0.740 +/-0.207 0.117 +/-0.207 0.252 pCi/g Bismuth-214 0.521 +/-0.0704 0.0282 +/-0.0704 0.060 pCi/g Cesium- 134 U 0.0423 +/-0.0387 0.020 +/-0.0387 0.0425 pCi/g Cesium-137 0.053 +/-0.0324 0.0153 +/-0.0324 0.0327 pCi/g Cobalt-60 U 0.00102 +/-0.0188 0.0164 +/-0.0188 0.0359 pCi/g Europium-152 U -0.00774 +/-0.0461 0.0413 +/-0.0461 0.0871 pCi/g Europium-154 U -0.0447 +/-0.0569 0.0453 +/-0.0569 0.0994 pCi/g Europium-155 U 0.035 +/-0.0562 0.0541 +/-0.0562 0.113 pCi/g Lead-212 .0.730 +/-0.0581 0.025 +/-0.0581 0.0523 pCi/g Lead-214 0.572 +/-0.0735 0.0321 +/-0.0735 .0.0674 pCi/g Manganese-54 U 0.002 ' +/-0.0188 0.0165 +/-0.0188 0.0353 pCi/g Niobium-94 U 0.00326 +/-0.0161 0.0145 +/-0.0161 0.031 pCi/g Potassium-40 10.7 +/-0.758 0.130 +/-0.758 0.293 pCi/g Radium-226 0.521 +/-0.0704 0.0282 +/-0.0704 0.060 pCi/g Silver-108m U -0.00426 +/-0.0157 0.0136 +/-0.0157 0.0289 pCi/g Thallium-208 0.249 +/-0.0433 0.0129 +/-0.0433 0.0278 pCi/g The following Prep Methods were performed Method . Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 10/17/06 11"27 580004 The following Analytical Methods were performed Method Description EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

  <    Result is less than value reported 33

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-016F Proiect: YANK01204 Sample ID: 174224001 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 34

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-003F Proiect: YANK01204 Sample ID: 174224002 Client IID: YANKOO Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: ~77og/* Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis GammaSolid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.15 +/-0.192 0.0672 +/-0.192 0.144 pCi/g MJHI 10/23/06 1101 580184 1 Americium-241 U 0.0214 +/-0.0897 0.0825 +/-0.0897 0.170 pCi/g Bismuth-212 0.798 +/-0.308 0.140 +/-0.308 0.298 pCilg Bismuth-214 0.975 +/-0.113 0.036 +/-0.113 0.0761 pCi/g Cesium-134 UI 0.00 +/-0.042 0.0254 +/-0.042 0.0536 pCi/g Cesium-137 U 0.0316 +/-0.0243 0.0201 +/-0.0243 0.0425 pCi/g Cobalt-60 U 0.00195 +/-0.0229 0.0191 +/-0.0229 0.0417 pCi/g Europium-152 U -0.0409 +/-0.0572 0.0482 +/-0.0572 0.101 pCi/g Europium-154 U -0.0259 +/-0.0666 0.0528 +/-0.0666 0.115 pCi/g Europium-155 U 0.114 +/-0.114 0.0608 +/-0.114 0.126 pCi/g Lead-212 1.19 +/-0.0781 0.0329 +1-0.0781 0.0682 pCi/g Lead-214 1.03 +1-0.104 0.037 +/-0.104 0.0774 pCi/g Manganese-54 U 0.0228 +/-0.0241 0.0221 +/-0.0241 0.0467 pCi/g Niobium-94 UI 0.00 +/-0.0416 0.0182 +/-0.0416 0.0385 pCi/g Potassium--40 16.9 +/-1.06 0.175 +/-1.06 0,384 pCi/g Radium-226 0.975 +/-0.113 0.036 +/-0.113 0.0761 pCi/g Silver-108m U -0.0113 +/-0.020 0.0166 +/-0.020 0.035 pCi/g Thallium-208 0.345 +/-0.0494 0.0182 +/-0.0494 0.0386 pCi/g The folloming Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 10/17/06 1127 580004 The following Analytical Methods were performed Method Description 1 EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows

• A quality control analyte recovery is outside of specified acceptance criteria

   <    Result is less than value reported 35

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-003F Project: YANK01204 Sample ID: 174224002 Client ID: YANK00I Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gaumma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 36

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-020F Proiect: YANKO1204 Sample ID: 174224003 Client ID: YANKOOI Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 5.4X9% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Ganrna,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.906 +1-0.257 0.0872 +/-0.257 0.190 pCilg MJHI 10/23/06 1225 580184 1 Americium-241 U 0.00899 +/-0.0408 0.0372 +/-0.0408 0.077 pCi/g Bismuth-212 U 0.346 +/-0.505 0.182 +/-0.505 0.395 Bismuth-214 0.588 +/-0.118 0.0471 +/-0.118 0.101 pCilg Cesium-134 U 0.0432 +/-0.0547 0.0356 +/-0.0547 0.0758 pCi/g Cesium-137 U 0.0619 +/-0.0517 0.0293 +/-0.0517 0.0624 pCilg Cobalt-60 U -0.00849 +/-0.0374 0.0306 +/-0.0374 0.0671 pCi/g Europium-152 U -0.0343 +/-0.0771 0.0641 +/-0.0771 0.135 pCilg Europium-154 U -0.0334 +/-0.099 0.0804 +/-0.099 0.177 pCi/g Europium-155. U -0.00124 +/-0.0668 0.0575 +/-0.0668 0.120 pCilg Lead-212 0.645 +!-0.091 0.0543 +/-0.091 0.112 pCi/g Lead-214 0.627 +/-0.126 0.0485 +/-0.126 0.102 pCi/g Manganese-54 U 0.0354 +/-0.0353 0.0322 +/-0.0353 0.0684 pCilg Niobium-94 U 0..0287 +/-0.0306 0.0282 +/-0.0306 0.0598 pCi/g Potassium-40 12.0 +/-1.08 0.234 +/-1.08 0.527 pCi/g Radium-226 0.588 +/-0.118 0.0471 +/-0.118 0.101 pCi/g Silver-108m U 0.00743 +/-0.0239 0.0221 +/-0.0239 0.0469 pCi/g Thallium-208 0.222 +/-0.0588 0.0279 +/-0.0588 0.0594 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 10/17/06 1127 580004 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows

• A quality control analyte recovery is outside of specified acceptance criteria

   <    Result is less than value reported 37

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -: (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 ReportDate: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-020F Proiect: YANKO1204 Sample ID: 174224003 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF. Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 38

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-004F Proiect: YANK0]204 Sample ID: 174224004 Client ID: YANK00I Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 5.76% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Ganna,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.885 +/-0.223 0.100 +/-0.223 0.201 pCi/g MJH1 10/23/06 1244 580184 1 Americium-241 U 0.0457 +1-0.0472 0.0392 +/-0.0472 0.0784 pCi/g Bismuth-212 U 0.453 +/-0.315 0.296 +/-0.315 0.592 pCilg Bismuth-214 0.592 +/-0.130 0.0529 +/-0.130 0.106 pCilg Cesium-134 UI 0.00 +/-0.0631 0.0417 +/-0.0631 0.0833 pCi/g Cesium-137 0.113 +/-0.0551 0.0282 +/-0.0551 0.0563 pCi/g Cobalt-60 U 0.00471 +/-0.0431 0.0365 +/-0.0431 0.0729 pCi/g Europium-152 U -0.0789 +/-0.111 0.0667 +/-0.111 0.133 pCi/g Europium-154 U -0.0433 +/-0.139 0.112 +/-0.139 0.224 pCi/g Europium-155 U 0.0401 +/-0.0704 0.0635 +/-0.0704 0.127 pCi/g Lead-212 0.739 +/-0.101 0.0372 +/-0.101 0.0744 pCi/g Lead-214 0.702 +/-0.146 0.0493 +/-0.146 0.0986 pCi/g Manganese-54 U 0.00374 +/-0.0374 0.0327 +/-0.0374 0.0653 pCi/g Niobium-94 U 0.00532 +/-0.0328 0.0291 +/-0.0328 0.0582 pCi/g Potassium-40 11.0 +/-1.24 0.325 +/-1.24 0.650 pCi/g Radium-226 0.592 +/-0.130 0.0529 +/-0.130 0.106 pCi/g Silver-108m U -0.0374 +/-0.029 0.0221 +/-0.029 0.0442 pCi/g Thallium-208 0.204 +/-0.0904 0.0271 +/-0.0904 0.0542 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 10/17/06 1127 580004 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

   <    Result is less than value reported 39

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: *October24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-004F Protect: YANK01204 Sample ID: 174224004 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank.

BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD. UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Sunmmiary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 40

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-005F Proiect: YANK01204 Sample ID: 174224005 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 3.28% Parameter Qualifier Result Uinicertainty LC . TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.586 +/-0.145 0.0501 +/-0.145 0.108 pCi/g MJHI 10/23/06 1258 580184 1 Americium-241 U -0.0266 +/-0.0889 0.0712 +/-0.0889 0.147 pCi/g Bismuth-212 0.391 +/-0.229 0.114 +/-0.229 0.242 pCi/g Bismuth-214 0.498 +/-0.0639 0.0278 +/-0.0639 0.0588 pCi/g Cesium-134 . UI 0.00 +/-0.0308 0.0187 +/-0.0308 0.0395 pCi/g Cesium-137 Ui 0.00 +/-0.0483 0.0128 +/-0.0483 0.0274 pCi/g Cobalt-60 U 0.0103. 4+-0.0191 0.0171 +/-0.0191 0.037 pCi/g Europium-152 U 0.000548 +/-0.0428 0.0366 +/-0.0428 0.0768 pCi/g Europium-154 U -0.0126 +/-0.0535 0.0444 +/-0.0535 0.0968 pCi/g Europium-155 U 0.0307 +/-0.0437 0.0421 +/-0.0437 0.087 pCi/g Lead-212 0.679 +/-0.0518 0.0209 +/-0.0518 0.0435 Lead-214 0.560 +/-0.0799 0.0245 +/-0.0799 0.0516 pCi/g Manganese-54 U 0.0146 +/-0.0172 0.0155 +/-0.0172 0.0331 pCilg Niobium-94 U 0.00268 +/-0.0155 0.0134 +/-0.0155 0.0285 pCi/g Potassium-40 10.5 +/-0.750 0.135 +/-0.750 0.300 pCi/g Radium-226 0.498 +/-0.0639 0.0278 +/-0.0639 0.0588 pCi/g Silver-108m U 0.0072 +/-0.0154 0.0127 +/-0.0154 0.0268 pCilg pCi/g Thallium-208 0.186 +/-0.0432 0.0135 +/-0.0432 0.0287 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI1 *10/17/06 1127 580004 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

   <    Result is less than value reported 41

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8.171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-005F Project: YANK01204 Sample ID: 174224005 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 .>   Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 42

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: Ottober 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-008F Proiect: YANK01204 Sample ID: 174224006 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 8.78% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Alpha Spec Analysis Alphaspec.Am241, Cm, Solid ALL FSS Americium-241 U -0.00901 +/-0.0461 0.0494 +/-0.0461 0.204 pCi/g MXA 10/23/06 1039 580396 1 I Curium-242 U 0.00 +/-0.0812 0.00 +/-0.0812 0.112 pCi/g Curium-243/244 U 0.00 +/-0.0764 0.00 +/-0.0764 0.106 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 U 0.00905 +/-0.086 0.0672 +/-0.086 0.211 pCi/g MXA 10/20/06 0813 580398 2 1 Plutonium-239/240 U -0.0532 +/-0.0721 0.0879 +/-0.0723 0.252 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U -4.06 +/-7.84 6.76 +/-7.84 14.2 pCi/g MXA 10/21/06 1632 580400 3 I Rad Gamma Spec Analysis Gamma.Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.02 +/-0.218 0.0722 +/-0.218 0.163 pCi/g MJHI 10/23/06 1259 580184 4 Americium-241 U 0.00802 +/-0.0383 0.0354 +/-0.0383 0.0734 pCi/g Bismuth-212 0.677 +/-0.537 0.185 +/-0.537 0.405 pCi/g Bismuth-214 0.675 +/-0.121 0.0505 +/-0.121 0.109 pCi/g Cesium-134 U 0.0465 +/-0.0461 0.0323 +/-0.0461 0.0699 pCi/g Cesium-137 0.0801 +/-0.0347 0.0273 +/-0.0347 0.0591 pCi/g Cobalt-60 U -0.00558 +/-0.0307 0.0252 +/-0.0307 0.0574 pCi/g Europium-152 U -0.0291 +/-0.0742 0.0643 +/-0.0742 0.137 pCi/g Europium-154 U 0.0675 +/-0.091 0.0851 +/-0.091 0.189 pCi/g Europium-155 U 0.0469 +/-0.0657 0.0606 +/-0.0657 0.126 pCi/g Lead-212 0.855 +/-0.0857 0.0351 +/-0.0857 0.0739 pCi/g Lead-2]4 0.785 +/-0.110 0.0422 +/--0.110 0.0902 pCi/g Manganese-54 U 0.0191 +/-0.0302 0.027 +/-0.0302 0.0588 pCi/g Niobium-94 U 0.00807 +/-0.0284 0.0247 +/-0.0284 0.0533 pCi/g Potassium-40 12.3 +/-1.22 0.228 +/-1.22 0.526 pCi/g Radium-226 0.675 +/-0.121 0.0505 +/-0.121 0.109 pCi/g Silver-108m U -0.00392 +/-0.0242 0.0209 +/-0.0242 0.0451 pCi/g Thallium-208 0.312 +/-0.0585 0.023 +/-0.0585 0.0501 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U 0.0274 +/-0.0243 0.019 +/-0.0243 0.0402 pCi/g KSDI 10/20/06 1940 580488 5 Rad Liquid Scintillation Analysis 43

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-008F Project: YANK01204 Sample ID: 174224006 Client ID: YANK00l Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid-HTD2,ALL FSS Tritium U -0.10 +/-2.79 2.35 +/-2.79 4.82 pCilg DFAI 10/23/06 1236 580401 6 Liquid Scint C14, Solid AII,FSS pCi/g Carbon-14 U -0.0573 +/-0.109 0.0931 +/-0.109 0.191 AXD2 10/21/06 1450 580402 8 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U 2.10 +/-28.7 20.9 +/-28.7 43.9 pClg MXPI 10/23/06 0015 580395 9 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -4.05 +/-8.06 6.95 +/-8.06 14.6 pCi/g MXPI 10/22106 2003 580397 10 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.148 +/-0.198 0.161 +/-0.198 0.334 pCi/g KXRI 10/24/06 1317 580399 11 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 10/17/06 1127 580004 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Ain-05-RC Modified 2 DOE EML HASL-300, Pu- I -RC Modified 3 DOE EML HASL-300, Pu-I I-RC Modified 4 EML HASL 300, 4.5.2.3 5 EPA 903.0 Modified 6 EPA 906.0 Modified 7 EPA 906.0 Modified 8 EPA EERF C-01 Modified 9 DOE RESL Fe-1, Modified 10 DOE RESL Ni-l, Modified 11 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery % Acceptable Limits Americium-243 Alphaspec Am241, Cm, Solid ALL 81 (15%-125%) Plutonium-242 Alphaspec Pu, Solid-ALL FSS 93 (15%-125%) Plutonium-241 Liquid Scint Pu241, Solid-ALL F5 84 (25%-125%) Strontium-90 GFPC, Sr90, solid-ALL FSS 87 (25%-125%) 44

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-008F Project: YANKO 1204 Sample ID: 174224006 Client ID: YANK001 Vol. Recv.: Paramete*r Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 87 (25%-125%) Iron-55 Liquid Scint Fe55, Solid-ALL FS 63 (15%-125%) Nickel-63 Liquid Scint Ni63, Solid-ALL FS 87 (25%-125%) Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 87 (25%-125%) Technetium-99 Liquid Scint Tc99, Solid-ALL FS 84 (150/-125%) Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 84 (15%-125%) Notes:

 .The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

   <    Result is less than value reported
   >    Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Surrinary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 45

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd Ea'st Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-009F Proiect: YANK01204 Sample ID: 174224007 Client ID: YANKOO Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 8_34% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Ganmma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.840 +/-0.110 0.0417 +/-0.110 0.0883 pCi/g MJH1 10/23(06 1306 580184 1 Arnericium-241 U -0.073 +/-0.105 0.0789 +/-0.105 0.162 pCi/g Bismuth-212 0.536 +/-0.181 0.0985 +/-0.181 0.207 pCi/g Bismuth-214 0.611 +/-0.0743 0.0254 +/-0.0743 0.053 pCi/g Cesium-134 UI 0.00 +1-0.0281 0.0163 +/-0.0281 0.034 pCi/g Cesium-137 0.0834 +/-0.0244 0.0134 +1-0.0244 0.028 pCi/g Cobalt-60 U -0.00486 +/-0.0144 0.012 +1-0.0144 0.0258 pCi/g Europium-152 U -0.0103 +/-0.0393 0.0343 +/-0.0393 0.0713 pCi/g Europium-154 U -0.012 +/-0.0484 0.0409 +/-0.0484 0.087 pCilg Europium-155 U 0.058 +/-0.0643 0.0446 +/-0.0643 0.0916 pCi/g Lead-212 0.832 +/-0.0505 0.0224 +/-0.0505 0.046 pCilg Lead-214 0.804 +/-0.0676 0.0253 +/-0.0676 0.0525 pCi/g Manganese-54 U -0.00243 +/-0.0176 0.013 +/-0.0176 0.0272 pCi/g Niobium-94 U 0.0208 +/-0.0127 0.0127 +/-0.0127 0.0265 pCilg Potassium-40 12.5 +/-0.669 0.109 +/-0.669 0.237 pCi/g Radium-226 0.611 +/-0.0743 0.0254 +/-0.0743 0.053 pCi/g Silver-108m U 0.00572 +/-0.0131 0.0116 +/-0.0131 0.0241 pCi/g Thallium-208 0.261 +/-0.0305 0.0128 +/-0.0305 0.0267 pCilg The following Prep Methods were performed Method Description Analyst Date, Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 10/17/06 1127 580004 The following Analytical Methods were performed Method Description 1 EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

   <    Result is less than value reported 46

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.geLcom Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-009F Project: YANK01204 Sample ID: 174224007 Client ID: YANKOOI Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 47

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-006F Proiect: YANK01204 Sample ID: 174224008 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 5.61% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.428 +/-0.128 0.0429 +/-0.128 0.0936 pCi/g MJHI 10/23/06 1307 580184 1 Americium-241 U 0.00445 +/-0.0695 0.060 +/-0.0695 0.124 pCi/g Bismuth-212 0.522 +/-0.186 0.107 +/-0.186 0.230 pCi/g Bismuth-214 0.441 +/-0.0666 0.0259 +/-0.0666 0.0552 pCi/g Cesium-]34 UI 0.00 +/-0.0224 0.0178 +/-0.0224 0.0379 pCi/g Cesium-137 0.053 +/-0.0324 0.0122 +/-0.0324 0.0264 pCi/g Cobalt-60 U 0.0111 +/-0.0152 0.014 +/-0.0152 0.0308 pCi/g Europium-152 U 0.0327 +/-0.0445 0.0378 +/-0.0445 0.0796 pCi/g Europium-154 U -0.0039 +/-0.0476 0.0395 +/-0.0476 0.0868 pCi/g Europium-155 U -0.00205 +/-0.050 0.046 +/-0.050 0.0956 pCi/g Lead-212 0.544 +/-0.0517 0.0244 +/-0.0517 0.0508 pCi/g Lead-214 0.425 +/-0.0752 0.0263 +/-0.0752 0.0554 pCi/g Manganese-54 U 0.0171 +/-0.0174 0.0149 +/-0.0174 0.0318 pCi/g Niobium-94 U 0.00344 +/-0.0139 0.0126 +/-0.0139 0.027 pCi/g Potassium-40 11.5 +/-0.739 0.110 +/-0.739 0.248 pCi/g Radium-226 0.441 +/-0.0666 0.0259 +/-0.0666 0.0552 pCi/g Silver-108m U -0.00111 +/-0.0144 0.0127 +/-0.0144 0.0269 pCi/g Thallium-208 0.165 +/-0.0315 0.0146 +/-0.0315 0.031 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMIB1 10/17/06 1127 580004 The following Analytical Methods were performed Method Description 1 EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

  <    Result is less than value reported 48

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: OctOber 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-006F Proiect: YANK01204 Sample ID: 174224008 Client Vol. Recv.: YANK001 ID: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 49

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-017F Project: YANK01204 Sample ED: 174224009 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 3.13% Parameter Qualifier Result Ui icertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Ganmna,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.807 +/-0.242 0.095 +/-0.242 0.206 pCi/g MJH1 10/23/06 1427 580184 1 Americium-241 U -0.0127 +d-0.0439 0.036 +/-0.0439 0.0746 pCilg pCi/g Bismuth-212 0.452 +/-0.407 0.204 +/-0.407 0.439 pCi/g Bismuth-214 0.664 +/-0.111 0.0468 +/-0.111 0.100 Cesium-134 U 0.0329 . +/-0.0352 0.0324 +/-0.0352 0.0692 pCi/g Cesium-137 U 0.0422 +/-0.0375 0.0295 +/-0.0375 0.0629 pCilg Cobalt-60 U -0.00349 +/-0.0369 0.0264 +/-0.0369 0.0585 pCilg Europium-152 U -0.0308 +/-0.072 0.060 +/-0.072 0.127 pCi/g Europium-154 U -0.02 +/-0.101 0.0831 +/-0.101 0.182 pCilg Europium-155 U 0.0387 +/-0.0863 0.0573 +/-0.0863 0.119 pCilg Lead-212 0.649 +/-0.0898 0.0521 +/-0.0898 0.108 pCilg Lead-214 0.646 +/-0.111 0.0488 +/-0.111 0.103 pCi/g Manganese-54 U 0.016 +/-0.0335 0.0294 +/-0.0335 0.0629 pCilg Niobium-94 U 0.0104 +/-0.0316 0.0278 +/-0.0316 0.0591 pCilg Potassium-40 10.9 +/-1.03 0.200 +/-1.03 0.459 pCilg pCi/g Radium-226 0.664 +/-0.111 0.0468 +/-0.111 0.100 pCi/g Silver-108m" U -0.00279 +/-0.0246 0.022 +/-0.0246 0.0468 pCi/g Thallium-208 0.269 +/-0.0571 0.0235 +/-0.0571 0.0504 The following Prep Methods were performed

• Method Description Analyst Date Time Prep Batch Dry Soil Prep. Dry Soil Prep .GL-RAD-A-021 JMBI 10/17/06 1127 580004 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

  <    Result is less than value reported 50

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton. Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-017F Proiect: YANK01204 Sample ID: 174224009 Client ID: YANKOOl Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 51

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-O1F Project: YANK01204 Sample ID: 174224010 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 3.58% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Ganmna,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.850 +/-0.240 0.108 +/-0.240 0.215 pCilg MJH1 10/23/06 1453 580184 1 Americium-241 U 0.0152 +/-0.0475 0.0384 +/-0.0475 0.0767 pCi/g Bismuth-212 U 0.495 +/-0.330 0.250 +/-0.330 0.499 pCi/g Bismuth-214 0.708 +/-0.158 0.0489 +/-0.158 0.0977 pCi/g Cesium-134 U 0.0361 +/-0.0592 0.0379 +/-0.0592 0.0758 pCi/g Cesium-137 U 0.0386 +/-0.0553 0.0279 +/-0.0553 0.0557 pCi/g Cobalt-60 U 0.0104 +/-0.0336 0.0296 +/-0.0336 0.0592 pCi/g Europium- 152 U 0.0404 +/-0.0883 0.0668 +/-0.0883 0.134 pCi/g Europium-154 U 0.0452 +/-0.131 0.114 +/-0.131 0.228 pCi/g Europium-155 U 0.0253 +/-0.075 0.0623 +/-0.075 0.125 pCi/g Lead-212 0.730 +/-0.102 0.0375 +/-0.102 0.075 pCi/g Lead-214 0.616 +/-0.125 0.0491 +/-0.125 0.0982 pCi/g Manganese-54 U -0.0293 +/-0.0418 0.0274 +/-0.0418 0.0549 pCi/g Niobium-94 U 0.00228 +/-0.0309 0.0273 +/-0.0309 0.0545 pCi/g Potassium-40 11.4 +/-1.23 0.191 +/-1.23 0.382 pCi/g Radium-226 0.708 +/-0.158 0.0489 +/-0.158 0.0977 pCi/g Silver-108rn U 0.00402 +/-0.0285 0.0249 +/-0.0285 0.0498 pCi/g Thallium-208 0.219 +/-0.0701 0.0256 +/-0.0701 0.0512 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry SoilPrep GL-RAD-A-021 JMBI 10/17/06 1127 580004 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

  <     Result is less than value reported 52

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-OOIF Project: YANKO1204 Sample ID: 174224010 Client ID: YANKOOI Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D    Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J   Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R    Sample results are rejected U    Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 53

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis

                                                              .........

is Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 0 6424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-002F Proiect: YANK01204 Sample ID: 174224011 ClientID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 11.6% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamnna,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.596 +/-0.142 0.0526 +/-0.142 0.118 pCilg MJHI 10/23/06 1506 580184 1 Americium-241 U -0.0475 +/-0.0993 0.0894 +/-0.0993 0.187 pCi/g Bismuth-212 0.553 +/-0.215 0.131 +/-0.215 0.287 pCi/g Bismuth-214 0.445 +/-0.0684 0.0285 +/-0.0684 0.0623 pCi/g Cesium-134 U 0.0112 +/-0.0224 0.0205 +/-0.0224 0.0446 pCilg Cesium-137 0.0953 +/-0.0395 0.0182 +/-0.0395 0.0396 pCifg Cobalt-60 U 0.0103 +/-0.0192 0.0179 +/-0.0192 0.0408 pCi/g Europium-152 U 0.0402 +/-0.052 0.0487 +/-0.052 0.104 pCi/g Europium-154 U 0.000834 +/-0.077 0.0575 +/-0.077 0.128 pCilg Europium-1 55 U 0.0343 +/-0.0529 0.0536 +/-0.0529 0.112 pCi/g Lead-212 0.577 +/-0.0577 0.0273 +/-0.0577 0.0574 pCi/g Lead-214 0.427 +/-0.0859 0.0298 +/-0.0859 0.0639 pCi/g Manganese-54 U 0.0316 +/-0.0225 0.0165 +/-0.0225 0.0364 pCi/g Niobium-94 U-0.000249 +/-0.0177 0.0155 +/-0.0177 0.0338 pCi/g Potassium-40 9.03 +/-0.878 0.156 +/-0.878 0.362 pCi/g Radium-226 0.445 +/-0.0684 0.0285 +/-0.0684 0.0623 pCilg Silver-108m U 0.00371 +/-0.0168 0.0141 +/-0.0168 0.0304 pCi/g Thallium-208 0.184 +/-0.0408 0.0164 +/-0.0408 0.0356 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMIBI 10/17/06 1127 580004 The following Analytical Methods were performed Method Description EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

  <     Result is less than value reported 54

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East H~impton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-002F Proiect: YANK01204 Sample ID: 174224011 Client ID: YANK0o0 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confimted by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 55

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-007F Project: YANK01204 Sample ID: 174224012 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 16.9% Parameter Qualifier Result UTncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis GapimaSolid-FSSGAM & ALL FSS 226 lngrowth Waived Actinium-228 0.712 +/-0.189. 0.0909 +/-0.189 0.198 pCi/g MJHl 10/23/06 1507 580184 1 Americium-241 U 0.017 -/-0.0337 0.0326 +/-0.0337 0.0675 pCi/g Bismuth-212 UI 0.508 +/-0.366 0.176 +/-0.366 0.383 pCi/g Bismuth-214 0.706 +/-0.123 0.0416 +/-0.123 0.0898 pCi/g Cesium-134 U 0.042 +/-0.028 0.0277 +/-0.028 0.060 pCi/g Cesium-137 0.116 +/-0.0416 0.0201 +/-0.0416 0.044 pCi/g Cobalt-60 U 0.0184 +/-0.024 0.0267 +/-0.024 0.0595 pCilg Europium-152 U 0.00172 4/-0.0619 0.0564 +/-0.0619 0.120 pCi/g Europium-154 U -0.0194 +/-0.0733 0.0601 +/-0.0733 0.137 pCi/g Europium-155 U 0.0486 +/-0.0825 0.0478 +/-0.0825 0.100 pCi/g Lead-212 0.755 +/-0.0749 0.0274 +/-0.0749 0.058 pCi/g Lead-214 0.634 +/-0.113 0.0414 +/-0.113 0.0878 pCi/g Manganese-54 U -0.0102 +/-0.0244 0.0194 +1-0.0244 0.043 pCi/g Niobium-94 U -0.0022 +/-0.0234 0.0199 +/-0.0234 0.0432 pCi/g Potassium-40 10.0 +1-1.04 0.235 +/-1.04 0.531 pCi/g Radium-226 0.706 +/1-0. 123 0.0416 +/-0.123 0.0898 pCi/g Silver-108m U 0.0107 +/-0.022 0.0204 +/-0.022 0.0436 pCi/g Thallium-208 0.259 +/-0.0535 0.0215 +/-0.0535 0.0465 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 10/17/06 1127 580004 The following Analytical Methods were performed Method Description 1 EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

   <    Result is less than value reported 56

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-007F Project: YANK01204 Sample ID: 174224012 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 57

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-012F Proiect: YANK01204 Sample ID: 174224013 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 7.67% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis GarunaSolid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.572 +/-0.141 0.051 +/-0.141 0.109 pCilg MJH1 10/23/06 1534 580184 1 Americium-241 U 0.0415 +/-0.108 0.0879 +/-0.108 0.182 pCi/g Bismuth-212 0.341 +/-0.204 0.111 +/-0.204 0.237 pCi/g Bismuth-214 0.444 +/-0.0719 0.0284 +/-0.0719 0.0599 pCi/g Cesium- 134 UI 0.00 +/-0.0316 0.0192 +/-0.0316 0.0406 pCi/g Cesium- 137 0.330 +/-0.0357 0.0158 +/-0.0357 0.0335 pCi/g Cobalt-60 U 0.00219 +/-0.0159 0.0139 +/-0.0159 0.0305 pCi/g Europium-152 U -0.0182 +/-0.0439 0.0384 +/-0.0439 0.0807 pCi/g Europium-154 U -0.024 +/-0.0518 0.0428 +/-0.0518 0.0931 pCi/g Europium-155 U 0.0138 +/-0.0551 0.0514 +/-0.0551 0.106 pCi/g Lead-212 0.652 +/-0.0534 0.0246 +/-0.0534 0.0511 pCi/g Lead-214 0.530 +/-0.0743 0.0279 +/-0.0743 0.0585 pCi/g Manganese-54 U -0.00187 +/-0.0168 0.0144 +/-0.0168 0.0308 pCi/g Niobium-94 U -0.0032 +/-0.0161 0.014 +/-0.0161 0.0297 pCi/g Potassium-40 14.4 +/-0.799 0.123 +/-0.799 0.273 pCi/g Radium-226 0.444 +/-0.0719 0.0284 +/-0.0719 0.0599 pCi/g Silver-108m 0.0281 +/-0.0208 0.0123 +/-0.0208 0.0261 pCi/g Thallium-208 0.240 +/-0.0408 0.015 +/-0.0408 0.0317 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 10/17/06 1127 580004 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside of specified acceptance criteria

   <     Result is less than value reported 58

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-012F Proeect: YANKO 1204 Sample ID: 174224013 Client ID: YANO001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GCIMS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 59

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424  : Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-012FS Project: YANK01204 Sample ID: 174224014 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 7.64% Parameter Qualifier Result Uncertainty LC. TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Ganmoa,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.639 +/-0.169 0.0421 +/-0.169 0.0929 pCi/g MJHI 10/23/06 1535 580184 1 Americium-241 U -0.0317 +/-0.072 0.0658 +/-0.072 0.136 pCi/g Bismuth-212 0.385 +/-0.257 0.113 +/-0.257 0.244 pCi/g Bismuth-214 0.466 +/-0.112 0.0303 +/-0.112 0.0643 pCi/g Cesium- 134 U-1 0.00 +/-0.0243 0.0192 +/-0.0243 0.0408 pCi/g Cesium-137 0.350 +/-0.0443 0.0185 +/-0.0443 0.0392 pCi/g Cobalt-60 U -0.016 +/-0.0199 0.0148 +/-0.0199 0.0327 pCi/g Europium- 152 - U -0.0154 +/-0.048 0.0418 +/-0.048 0.0881 pCilg Europium-154 U 0.00846 +/-0.0537 0.0456 +/-0.0537 0.0999 pCi/g Europium-155 U 0.0527 +/-0.0592 0.0554 +/-0.0592 0.115 pCi/g Lead-212 0.710 +/-0.0607 0.0246 +/-0.0607 0.0515 pCi/g Lead-214 0.534 +/-0.0867 0.0307 +/-0.0867 0.0647 pCi/g Manganese-54 U 0.000606 +/-0.019 0.0166 +/-0.019 0.0354 pCi/g Niobium-94 U 0.0156 +/-0.0162 0.0153 +/-0.0162 0.0325 pCi/g Potassium-40 12.8 +/-0.881 0.144 +/-0.881 0.321 pCi/g Radium-226 0.466 +/-0.112 0.0303 +/-0.112 0.0643 pCi/g Silver-108m U 0.00742 +/-0.0165 0.0148 +/-0.0165 0.0314 pCi/g Thallium-208 0.232 +/-0.0384 0.0163 +/-0.0384 0.0346 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 10/17/06 1127 580004 The following Analytical Methods were performed Method Description EML HASL 300, 4,5.2.3 Notes: The Qualifiers in this report are defined as follows

• A quality control analyte recovery is outside of specified acceptance criteria

  <    Result is less than value reported 60

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-012FS Project: YANK01204 Sample ID: 174224014 ClientID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank
,BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X.or more R Sample results are rejected.

U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD. UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 61

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-01 OF Proiect: YANK01204 Sample ID: 174224015 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 6.2% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamina,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.806 +1-0.237 0.101 +/-0.237 0.218 pCi/g MJH1 10/23/06 1636 580184 1 Americium-241 U 0.0289 +/-0.0408 0.0376 +/-0.0408 0.0779 pCi/g Bismuth-212 U 0.436 +/-0.325 0.210 +/-0.325 0.452 pCi/g Bismuth-214 0.577 +/-0.133 0.0467 +/-0.133 0.100 pCi/g Cesium-134 U 0.0203 +/-0.0334 0.0361 +/-0.0334 0.0769 pCi/g pCilg Cesium-137 U 0.0416 +/-0.0366 0.0341 +/-0.0366 0.0723 Cobalt-60 U -0.00187 +/-0.034 0.0283 +/-0.034 0.0627 pCi/g Europium-1 52 U -0.00333 +/-0.0733 0.0623 +/-0.0733 0.132 pCi/g Europium- 154 U 0.0337 +/-0.102 0.0893 +/-0.102 0.195 pCi/g Europium-155 U 0.0473 +/-0.0692 0.0613 +/-0.0692 0.127 pCi/g Lead-212 0.653 +/-0.0885 0.0492 +/-0.0885 0.102 pCilg Lead-214 0.566 +/-0.115 0.050 +/-0.115 0.105 pCi/g Manganese-54 U 0.0119 +/-0.0384 0.0292 +/-0.0384 0.0627 pCi/g Niobium-94 U -0.0138 +/-0.0298 0.0244 +/-0.0298 0.0523 pCi/g Potassiurn-40 11.9 +/-1.21 0.220 +/-1.21 0.502 pCi/g Radium-226 0.577 +/-0.133 0.0467 +/-0.133 0.100 pCi/g Silver-1OSm U 0.0137 +/-0.0256 0.0238 +/-0.0256 0.0504 pCi/g Thallium-208 0.261 +/-0.0682 0.0259 +/-0.0682 0.0556 pCi/g. The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 10/17/06 1127 580004 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

   <     Result is less than value reported 62

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.corn Certificate of Analysis Company Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-01OF Project: YANK01204, Sample ID: 174224015 ClientID: YANK001 Vol. Recv.:. Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blajnk BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 63

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East HamptOn, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-014F Proiect: YANK01204 Sample ID: 174224016 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 8.04% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis GammaSolid-FSS GAM & ALL FSS 226 Ingrowtrh Waived Actinium-228 0.503 +/-0.121 0.0443 +/-0.121 0.0951 pCi/g MJHI 10/23/06 1833 580184 1 Americium-241 U 0.00401 +/-0.0983 0.0771 +/-0.0983 0.160 pCi/g Bismuth-212 0.353 +/-0.187 0.0969 +/-0.187 0.207 pCi/g Bismuth-214 0.372 +/-0.0718 0.0252 +/-0.0718 0.0532 pCi/g Cesium-134 UI 0.00 +/-0.022 0.0156 +/-0.022 0.0332 pCi/g Cesium-137 0.0968 +/-0.0282 0.0126 +/-0.0282 0.0268 pCi/g Cobalt-60 U 0.00121 +/-0.0177 0.0153 +/-0.0177 0.033 pCi/g Europium-152 U -0.0129 +/-0.0385 0.0336 +/-0.0385 0.0706 pCi/g Europium-154 U -0.0158 +/-0.0456 0.038 +/-0.0456 0.0826 pCi/g Europium-155 U 0.0505 +/-0.0505 0.0478 +/-0.0505 0.0987 pCi/g Lead-212 0.545 +/-0.046 0.0206 +/-0.046 0.0428 pCi/g Lead-214 0.478 +/-0.0792 0.025 +/-0.0792 0.0526 pCi/g Manganese-54 U-0.000989 +/-0.0161 0.0138 +/-0.0161 0.0293 pCi/g Niobium-94 U -0.00587 +/-0.0143 0.0122 +/-0.0143 0.0259 pCi/g Potassium-40 8.79 +/-0.682 0.121 +/-0.682 0.266 pCi/g Radium-226 0.372 +/-0.0718 0.0252 +/-0.0718 0.0532 pCi/g Silver-108m U -0.00393 +/-0.0138 0.0118 +/-0.0138 0.0249 pCi/g Thallium-208 0.192 +/-0.0327 0.0131 +/-0.0327 0.0277 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 10/17/06 1127 580004 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

  <    Result is less than value reported 64

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-014F Project: YANK01204 Sample ID: 174224016 ClientID: Vol. Recv.: YANKOO0 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > R esult is greater than "valuereported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Ganmma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 65

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407- (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-013F Proiect: YANK01204 Sample ID: 174224017 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 16.7% Parameter Qualifier Result U ncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gaimna Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 hIgrowth Waived Actinium-228 0.730 +/-0.126 0.0412 +/-0.126 0.0882 pCi/g MJH1 10/23/06 1834 580184 1 Americium-241 U -0.029 +/-0.0586 0.0533 +/-0.0586 0.110 pCi/g Bismuth-212 0.522 +/-0.218 0.101 +/-0.218 0.213 pCi/g Bismuth-214 0.582 +/-0.0711 0.0243 +/-0.0711 0.0512 pCi/g Cesium-134 UI 0.00 +/-0.0278 0.0163 +/-0.0278 0.0344 pCi/g Cesium-137 0.203 +/-0.036 0.0128 +/-0.036 0.027 pCi/g Cobalt-60 0.0472 +/-0.0221 0.0118 +/-0.0221 0.0259 pCi/g Europium-152 U -0.043 +/-0.0405 0.0339 +/-0.0405 0.0709 pCi/g Europium-154 U 0.012 +/-0.049 0.0417 +/-0.049 0.0893 pCi/g Europium-155 U 0.0235 +/-0.0505 0.046 +/-0.0505 0.0945 pCi/g Lead-212 0.727 +/-0.0508 0.020 +/-0.0508 0.0414 pCi/g Lead-214 0.582 +/-0.0746 0.0261 +/-0.0746 0.0545 pCi/g Manganese-54 U 0.021 +/-0.0252 0.0137 +/-0.0252 0.029 pCi/g Niobium-94 U 0.00768 +/-0.0138 0.0126 +/-0.0138 0.0264 pCi/g Potassium-40 12.4 +/-0.663 0.0915 +/-0.663 0.205 pCi/g Radiun-226 0.582 +/-0.0711 0.0243 +/-0.0711 0.0512 pCi/g Silver-108m U -0.00125 +/-0.0132 0.0114 +/-0.0132 0.0239 pCi/g Thallium-208 0.235 +/-0.0332 0.0132 +/-0.0332 0.0279 pCilg The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JmvBI 10/17/06 1127 580004 The following Analytical Methods were performed Method Description 1 EML HASL 300, 4.5.2.3 Notes: The Quaifliers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

  <    Result is less than value reported 66

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date' October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-013F Proiect: YANK01204 Sample ID: 174224017 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

Ul Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +I-RL. Concentrations are <5X the RL h Preparation or preservation holding.time was exceeded The above sample is reported on a dry weight basis. 67

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-011F Project: YANK01204 Sample ID: 174224018 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 8.65% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mid Rad Gamma Spec Analysis Gammna,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.632 +/-0.230 0.0998 +/-0.230 0.200 pCi/g MJHI] 10/23/06 1850 580184 1 Americium-241 U 0.0295 +/-0.0488 0.0357 +/-0.0488 0.0714 pCi/g Bismuth-212 U 0.409 +/-0.332 0.207 +!-0.332 0.415 pCi/g Bismuth-214 0.462 +/-0.125 0.0436 +/-0.125 0.0872 pCi/g Cesium-134 U 0.0581 +/-0.0394 0.0368 +/-0.0394 0.0735 pCi/g Cesium-137 0.0908 +/-0.0712 0.0288 +/-0.0712 0.0575 pCi/g Cobalt-60 U 0.0282 '+/-0.0376 0.0321 +/-0.0376 0.0641 pCi/g Europium-152 U -0.0458 +/-0.119 0.0672 +/-0.119 0.134 pCi/g Europium-154 U 0.0228 +/-0.142 0.105 +/-0.142 0.210 pCi/g Europium-155 U 0.0319 +/-0.066 0.060 +/-0.066 0.120 pCilg Lead-212 0.711 +/-0.0965 0.0337 +/-0.0965 0.0673 pCilg Lead-214 0.557 +/-0.126 0.0465 +/-0.126 0.0929 pClgg pCi/g Manganese-54 U 0.00341 +/-0.0382 0.0289 +/-0.0382 0.0578 Niobium-94 U 0.00939 +/-0.0327 0.0282 +/-0.0327 0.0564 pCigg pCi/g Potassium-40 11.1 +/-1.34 0.241 +1-1.34 0.482 pCi/g Radium-226 0.462 +/-0.125 0.0436 +/-0.125 0.0872 Silver-108m U -0.0147 +/-0.0284 0.0236 +/-0.0284 0.0472 pCi/g pCi/g Thallium-208 0.240 +/-0.0636 0.0268 +/-0.0636 0.0536 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 10/17/06 1128 580004 The following Analytical Methods were performed Method Description EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows

• A quality control analyte recovery is outside of specified acceptance criteria.

   <   Result is less than value reported 68

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-01IF Project: YANK01204 Sample ID: 174224018 Client ID: YANyK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GCIMS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded I Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 69

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.corn Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 lnjun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-01IFS Proiect: YANK01204 Sample ID: 174224019 Client ID: YANK00I Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture; 8.6% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Tine Batch Mtd Rad Gamma Spec Analysis Gamna,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.633 +/-0.160 0.065 +/-0.160 0.139 pCi/g MJHI 10/23/06 1837 580184 1 Americium-241 U 0.0304 +/-0.0425 0.0269 +/-0.0425 0.0554 pCi/g Bismuth-212 0.357 +/-0.290 0.151 +/-0.290 0.320 pCi/g Bismuth-214 0.411 +/-0.0995 0.0372 +/-0.0995 0.0782 pCi/g Cesium-134 U 0.00458 +/-0.0269 0.0233 +/-0.0269 0.0493 pCi/g Cesium-137 0.0841 +/-0.0353 0.0197 +/-0.0353 0.0417 pCilg Cobalt-60 U 0.0115 +/-0.0221 0.0198 +/-0.0221 0.043 pCi/g Europium-152 U -0.0189 +/-0.0519 0.0445 +/-0.0519 0.0933 pCi/g Europium-154 U 0.127 +/-0.110 0.0645 +/-0.110 0.138 pCi/g Europium-155 U 0.0527 +/-0.0708 0.0431 +/-0.0708 0.0889 pCifg Lead-212 0.556 +/-0.0586 0.0362 +/-0.0586 0.0743 pCi/g Lead-214 0.576 +/-0.0765 0.0307 +/-0.0765 0.0645 pCi/g Manganese-54 U 0.0188 +/-0.0216 0.0197 +/-0.0216 0.0418 pCi/g Niobium-94 U -0.00992 +/-0.0222 0.0187 +/-0.0222 0.0395 pCi/g Potassium-40 10.2 +/-0.809 0.153 +/-0.809 0.341 pCi/g Radium-226 0.411 +/-0.0995 0.0372 +/-0.0995 0.0782 pCi/g Silver-108m U 0.00271 +/-0.0178 0.0165 +/-0.0178 0.0347 pCi/g Thallium-208 0.196 +/-0.0449 0.0198 +/-0.0449 0.0418 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMIBI 10/17/06 1128 580004 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3

• Notes:

The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

  <    Result is less than value reported 70

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-01 IFS Project: YANK01204 Sample ID: 174224019 ClientID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty ' LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 71

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-019F Project: YANK01204 Sample ID: 174224020 Client ID: YANKOOI Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 9.97% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamina,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.709 +1-0.150 0.060 +/-0.150 0.130 pCi/g MJHI 10/23/06 2153 580184 1 Americium-241 U -0.0317 +/-0.119 0.0823 +/-0.119 0.171 pCi/g Bismuth-212 0.464 +/-0.206 0.119 +/-0.206 0.257 pCi/g Bismuth-214 0.472 +/-0.0905 0.0318 +/-0.0905 0.068 pCi/g Cesium-134 U 0.0308 +/-0.0347 0.023 +/-0.0347 0.049 pCi/g Cesium-137 0.107 +/-0.0312 0.0169 +/-0.0312 0.0363 pCi/g Cobalt-60 U 0.0134 +/-0.0223 0.0202 +/-0.0223 0.0445 pCi/g Europium-152 U 0.0229 +/-0.0505 0.0444 +/-0.0505 0.0937 pCi/g Europium-154 U 0.0133 +/-0.0576 0.0504 +/-0.0576 0.1.12 pCi/g Europium- 155 U 0.0476 +/-0.055 0.0531 +/-0.055 0.110 pCi/g Lead-212 0.735 +/-0.0682 0.0324 +/-0.0682 0.0671 pCi/g Lead-214 0.587 +/-0.0883 0.0335 +/-0.0883 0.0705 pCi/g Manganese-54 U 0.0188 +/-0.0228 0.0205 +/-0.0228 0.0437 pCi/g Niobium-94 U 0.0147 +/-0.0182 0.0167 +/-0.0182 0.0356 pCi/g Potassium-40 10.7 +/-0.939 0.176 +/-0.939 0.392 pCi/g Radium-226 0.472 +/-0.0905 0.0318 +/-0.0905 0.068 pCi/g Silver-108m U 0.0181 +/-0.0173 0.0165 +/-0.0173 0.035 pCi/g Thallium-208 0.250 +/-0.0421 0.0154 +/-0.0421 0.0332 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB I 10/17/06 1128 580004 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defimed as follows

• A quality control analyte recovery is outside of specified acceptance criteria

  <    Result is less than value reported 72

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-019F Project: YANK01204 Sample ID: 174224020 ClientID: Vol. Recv.: YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mid

  > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GCIMS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more
 .R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

U] Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 73

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-015F Project: YANKO1204 Sample ID: 174224021 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 11.6% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U 0.176 +/-0.185 0.0813 +/-0.187 0.263 pCi/g MXA 10/20/06 0813 580396 1 I Curium-242 U 0.0202 +/-0.0803 0.0493 +1-0.0804 0.204 pCi/g Curium-243/244 U 0.126 +/-0.203 0.129 +/-0.204 0.358 pCilg Alphaspec Pu, Solid-ALL FSS Plutonium-238 U 0.00 +/-0.0536 0.00 +/-0.0536 0.0741 pCi/g MXA .10/20/06 0813 580398 2 Plutonium-239/240 U -0.0186 +/-0.0635 0.0649 +/-0.0635 0.204 pCi/g Liquid Scint Pu241, Solid-ALL I Plutonium-241 U -3.63 +/-7.43 6.39 . +/-7.43 13.4 pCi/g MXA 10/21/06 1649 580400 3 I Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.767 +/-0.217 0.0823 +/-0.217 0.176 pCi/g MJH1 10/23/06 2156 580187 4 Americium-241 U 0.00809 +/-0.0352 0.0313 +/-0.0352 0.0645 pCi/g Bismuth-212 0.594 +/-0.317 0.152 +/-0.317 0.327 pCi/g Bismuth-214 0.499 +/-0.120 0.0436 +/-0.120 0.0919 pCilg Cesium-134 U 0.0488 +/-0.0474 0.029 +/-0.0474 0.0613 pCi/g Cesium-137 0.167 +/-0.0526 0.0245 +/-0.0526 0.0517 pCi/g Cobalt-60 U 0.0189 +/-0.0291 0.026 +/-0.0291 0.0563 pCi/g Europium-152 U 0.0113 +/-0.0668 0.0572 +/-0.0668 0.120 pCi/g Europium-154 U -0.0108 +/-0.0836 0.0694 +/-0.0836 0.150 pCilg pCi/g Europium-I 55 U 0.0838 +/-0.096 0.0467 +/-0.096 0.0968 pCilg Lead-212 0.608 +/-0.0803 0.0413 +/-0.0803 0.085 pCi/g Lead-214 0.587 +/-0.0952 0.0413 +/-0.0952 0.0863 pCi/g Manganese-54 U -0.00162 +/-0.0278 0.023 +/-0.0278 0.0491 pCi/g Niobium-94 U 0.0142 +/-0.026 0.0229 +/-0.026 0.0483 pCi/g Potassium-40 10.9 +/-1.01 0.207 +/-1.01 0.456 pCi/g Radium-226 0.499 +/-0.120 0.0436 +/-0.120 0.0919 pCi/g Silver-108m U-0.000455 +/-0.0224 0.0199 +/-0.0224 0.0419 pCi/g Thallium-208 0.243 +/-0.053 0.0224 +/-0.053 0.0473 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 0.0354 +/-0.0229 0.0142 +/-0.0229 0.0337 pCi/g KSDI 10/20/06 1939 580488 5 74

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-015F Proiect: YANK01204 Sample ID: 174224021 Client ID: YANKOOI Vnl Rprv" Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid-HTD2,ALL FSS Tritium U -2.18 +/-3.33 2.85 +/-3.33 5.85 pCilg DFAI 10/23/06 1538 580401 6 Liquid Scint C14, Solid All,FSS Carbon-14 U -0.105 +/-0.111 0.0955 +/-0.111 0.196 pCilg AXD2 10/21/06 1537 580402 8 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U 1.29 +/-30.8 22.5 +/-30.8 47.2 pCi/g MXPI 10/23/06 0032 580395 9 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -2.58 +/-9.45 8.04 +/-9.45 16.9 pCilg MXPI 10/22/062019 580397 10 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.285 +/-0.255 0.210 +/-0.255 0.427 pCi/g KXRI 10/24/060830 580399 11 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 10/17/06 1131 580006 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu-I I-RC Modified 3 DOE EML HASL-300, Pu-1 I-RC Modified 4 EML HASL 300, 4.5.2.3 5 EPA 905.0 Modified 6 EPA 906.0 Modified 7 EPA 906.0 Modified 8 EPA EERF C-01 Modified 9 DOE RESL Fe-l, Modified 10 DOE RESL Ni-I, Modified 11 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery % Acceptable Limits Americium-243 Alphaspec Am241, Cm, Solid ALL 82 (15%-125%) Plutonium-242 Alphaspec Pu, Solid-ALL FSS 95 (15%-125%) Plutonium-241 Liquid Scint Pu24 1, Solid-ALL FS 91 (25%-125%) Strontium-90 GFPC, Sr90, solid-ALL FSS 98 (25%-125%) 75

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-015F Project: YANK01204 Sample ID: 174224021 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Carrier/Tracer Recovery GFPC, Sr9O, solid-ALL FSS 98 (25%-125%) Iron-55 Liquid Scint Fe55, Solid-ALL FS 64 (15%-125%) Nickel-63 Liquid Scint Ni63, Solid-ALL FS 85 (25%-125%) Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 85 (25%-125%) Technetium-99 Liquid Scint Tc99, Solid-ALL FS 41 (15%-125%) Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 41 (15%-125%) Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

   <    Result is less than value reported
   >    Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank 13BDResults are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from'a diluted aliquot of the sample H Analytical holding time was exceeded I Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A "PD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 76

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-018F Project: YANK01204 Sample ID: 174224022 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 09-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 9.08% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.699 +/-0.111 0.039 +/-0.111 0.083 pCi/g MJHI 10/23/06 2157 580187 1 Americium-241 U 0.0248 +/-0.0556 0.0489 +/-0.0556 0.101 pCi/g Bismuth-212 0.638 +/-0.174 0.082 +/-0.174 0.174 pCi/g Bismuth-214 0.425 +/-0.0601 0.0225 +/-0.0601 0.0473 pCi/g Cesium-134 Ul 0.00 +/-0.0336 0.0138 +/-0.0336 0.0291 pCilg Cesium-137 0.119 +/-0.0293 0.0111 +/-0.0293 0.0235 pCi/g Cobalt-60 U 0.0133 +/-0.0145 0.0131 +/-0.0145 0.0281 pCi/g Europium-152 U 0.0025 +/-0.0361 0.0328 +/-0.0361 0.0683 pCilg Europium-154 U 0.0155 +/-0.040 0.0349 +1-0.040 0.0748 pCilg Europium-155 U 0.0641 +/-0.0415 0.0406 +/-0.0415 0.0835 pCi/g Lead-212 0.660 +/-0.044 0.0185 +/-0.044 0.0383 pCilg Lead-214 0.525 +/-0.0554 0.0225 +/-0.0554 0.0469 pCi/g

                                                                         +/-0.0122                     pCi/g Manganese-54                     U        0.013   +/-0.0122   0.0115                0.0244 Niobium-94                       U   -0.00495     +/-0.0115  0.00997  +/-0.0115     0.0211          pCi/g Potassium-40                                10.6   +/-0.599   0.0937   +/-0.599      0.206          pCi/g Radium-226                                0.425   +/-0.0601   0.0225  +/-0.0601     0.0473          pCilg Silver-108m                       .- 0.000768     +/-0.0124   0.0096  +/-0.0124     0.0202          pCi/g pCi/g Thallium-208                              0.217   +/-0.0293   0.0104  +/-0.0293       0.022 The following Prep Methods were performed Method              Description                                              Analyst        Date           Time      Prep Batch Dry Soil Prep        Dry Soil Prep GL-RAD-A-021                               JMB1           10/17/06         1131    580006 The following Analytical Methods were performed Method             Description I                   EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows

• A quality control analyte recovery is outside of specified acceptance criteria

   <    Result is less than value reported 77

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-018F Project: YANK0 1204 Sample ID: 174224022 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date T'hne Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 78

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-021F Proiect: YANK01204 Sample ID: 174224023 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 11-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 2.93% Parameter Qualifier Result U*ncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gaumma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.13 +/-0.239 0.0919 +/-0.239 0.184 pCi/g MJHI1 10/23/06 2340 580187 1 Americium-241 UI 0.00 +/-0.0435 0.0368 +/-0.0435 0.0735 pCi/g Bismuth-212 0.950 +/-0.349 0.214 +1-0.349 0.428 pCi/g Bismuth-214 0.878 +/-0.146 0.0484 +/-0.146 0.0968 pCilg Cesium-134 Ui 0.00 +/-0.0525 0.0329 +/-0.0525 0.0657 pCi/g

 .Cesium-137                            0.0687     +/-0.0378   0.0291   +/-0.0378     0.0582          pCi/g Cobalt-60                        U    0.0468     +/-0.0414     0.031  +/-0.0414      0.062          pCi/g Europium-152                     U    0.0503     +/-0.0926   0.0592   +1-0.0926      0.118          pCi/g Europium-154                     U  -0.0343       +/-0.107   0.0864    +/-0.107      0.173          pCi/g Europium-155                     U      0.037    +/-0.0631     0.057  +/-0.0631      0.114          pCi/g Lead-212                                  1.02    +/-0.114   0.0333    +/-0.114     0.0665          pCilg Lead-214                                0.986     +/-0.146   0.0425    +/-0.146      0.085          pCi/g Manganese-54                     U  -0.0021      +/-0.0322   0.0278   +1-0.0322     0.0555          pCi/g Niobium-94                       U    0.0104     +1-0.0274   0.0247   +/-0.0274     0.0493          pCi/g Potassium-40                              14.8     +/-1.23     0.219     +/-1.23     0.437          pCi/g Radium-226                              0.878     +/-0.146   0.0484    +/-0.146     0.0968          pCi/g Silver-108m                      U  -0.0337      +/-0.0263     0.021  +/-0.0263     0.0419          pCi/g Thallium-208                            0.331    +/-0.0749   0.0254   +/-0.0749     0.0508          pCi/g The following Prep Methods were performed Method             Description                                              Analyst       Date            Time      Prep Batch Dry Soil Prep       Dry Soil Prep GL-RAD-A-021                               JMB 1          10/17/06        1131     580006 The following Analytical Methods were performed Method             Description 1                   EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

   <   Result is less than value reported 79

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-021F Project: YANK01204 Sample ID: 174224023 Client ID: YANK00I Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 80

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-022F Project: YANK01204 Sample ID: 174224024 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 11-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 314 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamrna,Solid-FSS GAM &ALL FSS 226 Ingrowth Waived Actinium-228 1.23 +/-0.171 0.0614 +/-0.171 0.131 pCilg MJH1 10/24/06 0614 580187 1 Americium-241 U 0.0453 +/-0.117 0.0851 +/-0.117 0.175 pCi/g Bismuth-212 0.711 +/-0.245 0.122 +/-0.245 0.258 pCi/g Bismuth-214 0.833 +/-0.0947 0.0292 +/-0.0947 0.0616 pCi/g Cesium-134 UI 0.00 +/-0.0299 0.0225 +/-0.0299 0.0472 pCi/g Cesium-137 0.0902 +/-0.0242 0.0168 +/-0.0242 0.0355 pCi/g Cobalt-60 0.0813 +/-0.0353 0.0174 +/-0.0353 0.0377 pCi/g Europium-152 U -0.0581 +1-0.0517 0.0414 +/-0.0517 0.0864 pCi/g Europium-154 U 0.0196 +/-0.0608 0.0532 +/-0.0608 0.115 pCi/g Europium-155 U 0.0461 +/-0.0522 0.0503 +/-0.0522 0.103 pCi/g Lead-212 1.02 +/-0.060 0.0252 +/-0.060 0.0521 pCi/g Lead-214 0.965 +/-0.0961 0.0306 +/-0.0961 0.0638 pCi/g Manganese-54 U 0.00576 +/-0.0199 0.0171 +/-0.0199 0.0362 pCi/g Niobium-94 U 0.00741 +/-0.0184 0.0162 +/-0.0184 0.034 pCi/g Potassium-40 15.7 +/-0.914 0.137 +/-0.914 0.304 pCi/g Radium-226 0.833 +/-0.0947 0.0292 +/-0.0947 0.0616 pCi/g Silver-108m U-0.000439 +/-0.0162 0.0145 +/-0.0162 0.0303 pCi/g Thallium-208 0.325 +/-0.0417 0.0167 +/-0.0417 0.0352 pCi/g The following Prep Methods were performed Method Description - Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 10/17/06 1131 580006 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

   <     Result is less than value reported 81

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd Easi Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-022F Project: YANK01204 Sample ID: 174224024 Client ID: YANKOOI Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B ' Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 82

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 24, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-023F Proiect: YANKO1204 Sample ID: 174224025 Client ID: YANKOOI Matrix: TS Vol. Recv.: Collect Date: 12-OCT-06 Receive Date: 17-OCT-06 Collector: Client Moisture: 14.1% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamina,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.715 +/-0.112 0.0454 +/-0.112 0.0967 pci/ga MJHI 10/24/06 0614 580187 1 Americium-241 U 0.0307 +/-0.102 0.083 +/-0.102 0.171 pCi/g Bismuth-212 0.421 +/-0.170 0.104 +/-0.170 0.219 pCilg Bismuth-214 0.581 +/-0.0767 0.026 +/-0.0767 0.0545 pCilg Cesium-134 U 0.0251 +/-0.0205 0.0167 +/-0.0205 0.0351 pCilg Cesium- 137 0.0419 +/-0.0255 0.0119 +/-0.0255 0.0253 pcilg-Cobalt-60 U-0.000261 +/-0.0154 0.0132 +/-0.0154 0.0287 pcilg Europium-152 U -0.0287 +/-0.0411 0.0358 +/-0.0411 0.0746 pci/ýg Europium-154 U -0.0129 +/-0.0501 0.0425 +/-0.0501 0.091 pCi/g Europium-155 U 0.0243 +/-0.0505 0.0477 +/-0.0505 0.0984 pCi/g Lead-212 0.746 +/-0.0499 0.0211 +/-0.0499 0.0437 pCi/g Lead-214 0.670 +/-0.0636 0.027 +/-0.0636 0.0562 pCilg Manganese-54 U 0.0143 +/-0.0174 0.0159 +/-0.0174 0.0333 pcilg Niobium-94 U 0.00291 +/-0.0148 0.0133 +/-0.0148 0.0279 pCilg Potassium-40 13.1 +/-0.725 0.117 +/-0.725 0.257 pCL/g Radium-226 0.581 +/-0.0767 0.026 +/-0.0767 0.0545 pCilg Silver-108m U -0.00378 +/-0.0136 0.0118 +/-0.0136 0.0247 pCilg Thallium-208 0.234 +/-0.0322 0.0126 +/-0.0322 0.0265 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 10/17/06 1131 580006 The following Analytical Methods were performed Method Description EMIL HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

  <    Result is less than value reported 83

                                  .GENERAL ENGINEERING LABORATORIES, LLC
                                    .2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424                                            Report Date: October 24, 2006 Contact:    Mr. Jack McCarthy Project:    Soils PO# 002332 Client Sample ID:                 9520-0002-023F                Proiect:    YANK01204 Sample ID:                        174224025                     Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U - Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 84

QUALITY CONTROL DATA I 85

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Reoort Date: October 24, 2006 Client : Connecticut Yankee Atomic Power Page 1 of 12 362 Injun Hollow Rd East Hampton, Connecticut Contact: Mr. Jack McCarthy Workorder: 174224 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Alpha Spec Batch 580396 QCI 201210038 174224006 DUP Americium-241 U -0.00901 U -0.0356 pCi/g 119 (0% - 100%) AXAI 10/20/06 08:13 Uncert: +/-0.0461 +1-0.035 TPU: +/-0.0461 +/-0.0352 Curium-242 U 0.00 U -0.0155 pCi/g 200 (0%- 100%) Uncert: +/-0.0812 +/-0.0215 TPU: +/-0.0812 +/-0.0216 Curium-243/244 U 0.00 U -0.0556 pCi/g 200 (0%- 100%) Uncert: +/-0.0764 +/-0.123 TPU: +/-0.0764 +/-0.123 QC12012 10040 LCS Amnericium-241 2.72 2.33 pCi/g 86 (75%-125%) 10/20/06 08:13 Uncert: +/-0.266 TPU: +/-0.392 Curium-242 U 0.00823 pCi/g Uncert: +/-0.0232 TPU: +/-0.0232 Curium-243/244 3.27 3.55 pCilg 109 (75%-125%) Uncert: +/-0.330 TPU: +/-0.549 QC1201210037 MB Amnericium-241 U 2.200E-05 10/20/06 08:13 Uncert: +/-0.0261 TPU: +/-0.0261 Curium-242 U 0.00 Uncert: +/-0.0134 TPU: +/-0.0134 Curium-243/244 U -0.00919 pCi/g Uncert: +/-0.0222 TPU: +/-0.0222 QC1201210039 174224006 MS Americium-241 13.3 U -0.00901 13.9 PCi/g 105 (75%-125%) 10/20/06 08:13 Uncert: +/-0.0461 +/-1.44 TPU: +/-0.0461 +/-2.27 Curium-242 U 0.00 U 0.0808 PCilg Uncert: +/-0.0812 +/-0.112 TPU: +/-0.0812 +/-0.112 Curium-2431244 16.1 U 0.00 18.4 pCilg 114 (75%-125%) Uncert: +/-0.0764 +/-1.66 TPU: +/-0.0764 +/-2.87 Batch 580398 QC1201210046 174224006 DUP Plutonium-238 U 0.00905 U 0.0116 pCi/g 25 (0%- 100%) AXAI 10/20/06 08:13 86

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174224 Page 2 of 12 e Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Alpha Spec Batch 580398 Uncert: +/-0.086 +/-0.121 TPU: +/-0.086 +/-0.121 Plu~oniiirn-239/240 u -0.0532 U 0.0814 pCi/g 955 (0% - 100%) Uncert: +/-0.0721 +/-0.112 TPU: +/-0.0723 +/-0.112 QC1201210048 LCS Plutoaium-238 U -0.00419 pCilg (75%- 125%) 10/20/06 08:13 Uncert: +/-0.0143 TPU: +/-0.0143 Pliutonium-239/240 2.51 2.38 PCi/g 95 (75%-125%) Uncert: +/-0.238 TPU: +/-0.332 QC 1201210045 MB Plutorniurn-238 U -0.0118 pCilg 10/20/06 08:13 Uncert: +/-0.018 TPU: +/-0.018 Plutonium-239/240 U -0.00516 Uncert: +/-0.00584 TPU: +/-0.00586 pCi/g QC1201210047 174224006 MS PILutoniurn-238 u 0.00905 U -0.0482 (75%-125%) Uncert: +/-0.086 +/-0.0653 TPU: +/-0.086 +/-0.0654 Plutonium-239/240 12.3. U -0.0532 15.4 PCi/g 125 (75%-125%) Uncert: +1-0.0721 +/-1.23 TPU: +/-0.0723 +/-1.94 Batch 580400 QC1201210054 174224006 DUP Plutonium-241 U -4.06 U -1.47 pCi/g 0 (0%- 100%) 4XAI 10/21/06 18:42 Uncert: +/-7.84 +/-6.92 TPU: +/-7.84 +/-6.92 QC1201210056 LCS Plutonium-241 35.9 35.5 pCi/g 99 (75%-125%) 10/21/06 19:14 Uncert: +/-3.19 TPU: +/-4.69 QC1201210053 MB Plutonium-241 U -0.233 10/21/06 18:26 Uncert: +/-1.77 TPU: +/-1.77 QC1201210055 174224006 MS Plutonium-241 143 U -4.06 124 pCi/g 86 (75%-125%) 10/21/06 18:58 Uncert: +/-7.84 +/-1 1.4 TPU: +/-7.84 +/-16.4 Rod Gamma Spec Batch 580184 QC1201209530 174224001 DUP Actinium-228 0.656 0.713 pCi/g 8 (0%- 100%) MJHI 10/23/06 21:59 Uncert: +/-0.149 +/-0.114

                                                                     +/-0.114 87

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174224 Page 3 of 12 Parmname NOM Sample Qual QC. Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 580184 TPU: -+/-0.149 Americium-241 u -0.0484 U -0.009 pCi/g 137 (0%- 100%) Uncert: +/-0.120 +/-0.0993 TPU: +/-0.120 +/-0.0993 Bismuth-212 0.740 0.587 pCi/g 23 (0%- 100%) Uncert: +1-0.207 +/-0.190 TPU: +/-0.207 +/-0.190 Bismuth-214 0.521 0.572 pCi/g 9 (0%- 100%) Uncert: +1-0.0704 +/-0.0709 TPU: +/-0.0704 +/-0.0709 Cesium-134 U 0.0423 U 0.0299 pCilg 34 (0%- 100%) Uncert: +/-0.0387 +/-0.0245 TPU: +/-0.0387 +/-0.0245 Cesium- 137 0.053 U 0.0266 pCi/g 66 (0%- 100%) Uncert: +/-0.0324 +/-0.0247 TPU: +/-0.0324 +1-0.0247 Cobalt-60 u 0.00102 U 0.000496 pCi/g 69 (0%- 100%) Uncert: +/-0.0188 +/-0.0137 TPU: +/-0.0188 +/-0.0137 Europium- 152 U -0.00774 U 0.0158 pCi/g 583 (0%- 100%) Uncert: +/-0.0461 +/-0.0371 TPU: +/-0.0461 +/-0.0371 Europium- 154 U -0.0447 U -0.0102 pCi/g 126 (0%- 100%) Uncert: +/-0.0569 +/-0.0472 TPU: +/-0.0569 +/-0.0472 Europium-155 U 0.035 U 0.0663 pCi/g 62 (0% -100%) Uncert: +/-0.0562 +/-0.0598 TPU: +/-0.0562 +/-0.0598 Lead-212 0.730 0.681 pCi/g 7 (0%- 20%) Uncert: +/-0.0581 +/-0.0478 TPU: +/-0.0581 +/-0.0478 Lead-214 0.572 0.586 pCi/g 2 (0% - 20%) Uncert: +/-0.0735 +/-0.0627 TPU: +/-0.0735 +/-0.0627 Manganese-54 U 0.002 U 0.019 pCi/g 162 (0%- 100%) Uncert: +/-0.0188 +/-0.0175 TPU: +/-0.0188 +/-0.0175. Niobiuma-94 U 0.00326 U 0.0155 pCi/g 131 (0% - 100%). Uncert: +/-0.0161 +/-0.0162 TPU: +/-0.0161 +/-0.0162 Potassium-40 10.7 10.9 pCi/g 2 (0%- 20%) Uncert: +/-0.758 +/-0.617 TPU: +/-0.758 +/-0.617 Radium-226 0.521 0.572 pCi/g 9 (0%- 100%) Uncert: +/-0.0704 +/-0.0709 TPU: +/-0.0704 +/-0.0709 Silver- 108m U -0.00426 U -0.00499 pCi/g 16 (0%- 100%) Uncert: +/-0.0157 +/-0.0125 88

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.corn QC Summary Workorder. 174224 Page 4 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 580184 TPU: +/-0.0157 +J-0.0125 Thallium-208 0.249 0.228 pCi/g 9 (0%- 100%) Uncert: +/-0.0433 +/-0.0352 TPU: +/-0.0433 +/-0.0352 QC1201209531 LCS Actinium-228 U 0.0686 pcilg 10/23/06 18:35 Uncert: +/-0.595 TPU: +/-0.595 Americium-241 23.4 25.1 pCi/g 107 (75%-125%) Uncert: +/-1.41 TPU: +/-1.41 Bismuth-212 U -0.18 pci/g Uncert: +/-0.939 TPU: +/-0.939 Bisnmuth-214 U -0.0765 pci/g Uncert: +/-0.206 TPU: +/-0.206 Cesium- 134 U 0.141 PCi/g Uncert: +/-0.115 TPU: +/-0.115 Cesium- 137 9.55 10.1 pci/g 106 (75%-125%) Uncert: +/-0.480 TPU: +/-0.480 Cobalt-60 14.2 14.8 pci/g 104 (75%-125%) Uncert: +1-0.669 TPU: +/-0.669 Europium-152 U 0.426 pci/g Uncert: +/-0.272 TPU: +/-0.272 Europium- 154 U -0.119 pci/g Uncert: +/-0.260 TPU: +/-0.260 Europium- 155 U -0.057 pCilg Uncert: +/-0.272 TPU: +/-0.272 Lead-212 U 0.0794 pci/g Uncert: +/-0.141 TPU: +/-0.141 Lead-214 U 0.122 *pCi/g Uncert: +/-0.202 TPU: +/-0.202 Manganese-54 U -0.0237 pCi/g Uncert: +/-0.129 TPU: +/-0.129 Niobium-94 U -0.0208 pci/g Uncert: +/-0.108 TPU: +/-0.108 Potassium-40 U 0.464 PCilg 89

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174224 Page 5of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 580184 Uncert: +/-1.08 TPU: +/-1.08 Radium-226 U -0.0765 pCi/g ( 7 5%-125%) Uncert: +/-0.206 TPU: +/-0.206 Silver- 108m U 0.0616 PCilg Uncurt: +1-0.104 TPU: +/-0.104 Thallium-208 U 0.180 PCi/g Uncert: +/-0.223 TPU: +/-0.223 QC12o0 209529 Actinium-228 U 0.00591 pCilg 10/23/06 21:55 Uncert: +/-0.0418 TPU: +/-0.0418 Americium-241 U -0.00933 pCilg Uncert: +/-0.0122 TPU: +/-0.0122 Bismuth-21I2 U -0.0657 pCi/g Uncert: +/-0.0939 TPU: +/-0.0939 Bismuth-214 U 0.0217 pCi/g Uncert: +/-0.0605 TPU: +/-0.0605 Cesium-134 U 0.0108 Uncert: +/-0.00984 pCi/g TPU: +/-0.00984 Cesiuin-137 U -0.0074 Uncert: +/-0.0107 TPU: +/-0.0107 Cobalt-60 U -0.00733 PCi/g Uncert: +1-0.0157 TPU: +/-0.0157 Europium-1 52 U 0.0152 Uncert: +/-0.0297 pCi/g TPU: +1-0.0297 Europium- 154 U 0.00447 Uncert: +/-0.0325 pCi/g TPU: +/-0.0325 Europium-155 U -0.0125 Uncert: +/-0.0232 PCilg

                                 .TPU:                    +/-0.0232 Lead-212                                             Ul           0.00 Uncert:                    +/-0.0285 pCilg TPU:                    +/-0.0285 Lead-214                                              U        0.0313 Uncert:                    +/-0.0541 TPU:                    +/-0.0541 90

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174224 Page 6 of 12 NOM Samnle Onal OC Parmname Units RPD% REC% Range Anist Date Time NOM Rad Gamma Spec Batch 580184 Manganese-54 U -0.00428 pCi/g Uncert: +1-0.0125 TPU: +/-0.0125 Niobium-94 U 0.00916 pCi/g Uncert: +/-0.0116 TPU: +/-0.0116 Potassium-40 U 0.0648 pCilg Uncert: +/-0.114 TPU: +/-0.114 Radium-226 U 0.0217 pCi/g Uncert: +/-0.0605 TPU: +/-0.0605 Silver-108m U 0.00203 pCi/g Uncert: +/-0.00957 TPU: +/-0.00957 Thallium-208 U -0.00106 pCi/g Uncert: +/-0.0125 TPU: +/-0.0125 Batch 580187 QC1201209537 174224021 DUP Actinium-228 0.767 0.652 pci/g 16 (0% - 100%) MJH1 10/24/06 08:02 Uncert: +/-0.217 +/-0.144 TPU: +/-0.217 +/-0.144 Americium-241 U 0.00809 U -0.00863 pCi/g 6190 (0%- 100%) Uncert: +/-0.0352 +/-0.0585 TPU: +/-0.0352 +/-0.0585 Bismutli-212 0.594 0.486 pCi/g 20 (0%- 100%) Uncert: +/-0.317 +/-0.244 TPU: +/-0.317 +/-0.244 Bismuth-214 0.499 0.519 pCilg 4 (0%- 100%) Uncert: +/-0.120 +/-0.0642 TPU: +/-0.120 +/-0.0642 Cesium-134 U 0.0488 U 0.0182 91 (0%- 100%) Uncert: +/-0.0474 +/-0.0194 TPU: +/-0.0474 +/-0.0194 Cesium--137 0.167 0.162 pCi/g 3 (0%- 100%) Uncert: +/-0.0526 +/-0.0267 TPU: +/-0.0526 +/-0.0267 Cobalt-60 U 0.0189 U 0.000551 189 (0%- 100%) Uncert: +/-0.0291 +/-0.0152 TPU: +/-0.0291 +/-0.0152 Europium- 152 U 0.0113 U 0.015 28 (0%-1(0O%) Uncert: +/-0.0668 +/-0.0384 pCilg TPU: +/-0.0668 +/-0.0384 Europium- 154 U -0.0108 U 0.0378 359 (0%- 100%) Uncert: +/-0.0836 +/-0.0469

                                                                 +/-0.0469      pCiig TPU:     +/-0.0836 Europium- 155                                 U      0.0838 U   -0.000498                202         (0%- 100%)

91

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174224 Page 7 or 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 580187 Uncert: +/-0.096 +/-0.0484 TPU: +/-0.096 +/-0.0484 Lead-2 12 0.608 0.735 pCi/g 19 (0%-20%) Uncert: +/-0.0803 +/-0.0516 TPU: +/-0.0803 +/-0.0516 0.561 Lead-214 0.587 pCi/g 4 (0%-20%) Uncert: +/-0.0952 +/-0.0695 TPU: +/-0.0952 +/-0.0695 Manganese-54 U -0.00162 U 0.00615 pCi/g 343 (0% - 100%) Uncert: +/-0.0278 +/-0.0152 TPU: +/-0.0278 +/-0.0152 Niobium-94 U 0.0142 U -0.00557 pCilg 457 (0%.- 100%) Uncert: +/-0.026 +/-0.0139 TPU: +/-0.026 +/-0.0139 Potassium-40 10.9 11.0 pCi/g I (0% - 20%) Uncert: +/-1.01 +/-0.689 TPU: +/-1.01 +/-0.689 Radium-226 0.499 0.519 pCi/g 4 (0%- 100%) Uncert: +/-0.120 +/-0.0642 TPU: +/-0.120 +/-0.0642 Silver-I 08m U -0.000455 U -0.00219 pCi/g 131 (0%- 100%) Uncert: +/-0.0224 +/-0.0131 TPU: +/-0.0224 +/-0.0131 Thallium-208 0.243 0.197 pCi/g 21 (0%- 100%) Uncert: +/-0.053 +/-0.0337 TPU: +/-0.053 +/-0.0337 QC1201209538 LCS Actinium-228 U -0.0897 pCi/g 10/24/06 10:50 Uncert: +/-0.577 TPU: +/-0.577 Americium-241 23.4 24.3 pCilg 104 (75%-125%) Uncert: +/-1.14 TPU: +/-1.14 Bismuth-212 U -0.369 pCilg Uncert: +/-0.925 TPU: +/-0.925 Bismuth-214 U 0.128 pCi/9 Uncert: +/-0.218 TPU: +/-0.218 Cesium- 134 U -0.0937 pCi/g Uncert: +/-0.140 TPU: +/-0.140 Cesium- 137 9.55 9.91 pCi/g 104 (75%-125%) Uncert: +/-0.493 TPU: +/-0.493 Cobalt-60 14.2 14.8 pCilg 104 (75%-125%) Uncert: +/-0.650 TPU: +/-0.650 92

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174224 Page 8 of 12 Parmnname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 580187 Europium- 152 U -0.0694 pCi/g Uncert: +/-0.284 TPU: +1-0.284 Europium-154 U -0.104 pCi/g Uncert: +f-0.261 TPU: +/-0.261 Europium- 155 U -0.0225 pCi/g Uncert: +/-0.279 TPU: +/-0.279 Lead-212 U 0.101 pCi/g Uncert: +/-0.140 TPU: +/-0.140 Lead-214 U 0.197 pCi/g Uncert: +/-0.213 TPU: +/-0.213 Manganese-54 u 0.0802 pCi/g Uncert: +/-0.131 TPU: +/-0.131 Niobium-94 U -0.0585 pCi/g Uncert: +/-0.108 TPU: +/-0.108 Potassium-40 U -0.227 pCi/g Uncert: +/-0.915 TPU: +/-0.915 Radium-226 U 0.128 pCi/g (75%-125%) Uncert: +1-0.218 TPU: +/-0.218 Silver-108m U -0.0271 pCi/g Uncert: +/-0.105 TPU: +/-0.105 Thallium-208 U 0.134 pCilg Uncert: +/-0.116 TPU: +/-0.116 QC1201209536 Actinium-228 U -0.0025 pCilg 10/24/06 06:30 Uncert: +/-0.0518 TPU: +/-0.0518 pCi/g Americium-241 U -0.000862 Uncert: +/-0.0133 TPU: +/-0.0133 pCi/g Bismuth-212 U -0.0126 Uncert: +/-0.120 TPU: +/-0.120 pCilg Bismuth-214 U 0.0408 Uncert: +/-0.0373 TPU: +/-0.0373 pCilg Cesium- 134 U 0.00104 Uncert: +/-0.027 93

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174224 Page 9 of 12 Parmnaxne NOM Samnle Oual OC Units RPD% REC% Ranee Anist Date Time Rad Gamma Spec Batch 580187 TPU: +/-0.027 Cesium- 137 U 0.00755 pCi/g Uncert: +1-0.0324 TPU: +1-0.0324 Cobaht-60 U 0.00568 pCi/g Uncert: +/-0.0178 TPU: +/-0.0178 Europium- 152 U -0.00618 pCi/g Uncert: +/-0.0385 TPU: +/-0.0385 Europium- 154 U -0.0333 pCi/g Uncert: +/-0.0578 TPU: +/-0.0578 Europium- 155 U 0.020 pCi/g Uncert: +/-0.0245 TPU: +/-0.0245 Lead-212 U 0.0108 pCilg Uncert: +/-0.0301 TPU: +/-0.0301 Lead-214 U 0.0223 pCi/g Uncert: +/-0.0434 TPU: +/-0.0434 Manganese-54 U 0.00703 pCi/g Uncert: +/-0.0177 TPU: +/-0.0177 Niobium-94 U 0.00524 pCi/g " Uncert: +/-0.016 TPU: +/-0.016 pCi/g Potassium-40 U 0.0126 Uncert: +/-0.174 TPU: +/-0.174 Radium-226 U 0.0408 pCi/g Uncert: +/-0.0373 TPU: +/-0.0373 pCi/g Silver-108m U 0.00672 Uncert: +/-0.0132 TPU: +/-0.0132 pCi/g Thallium-208 U 0.00821 Uncert: +/-0.0182 TPU: +/-0.0182 Rad Gas Flow Batch 580488 QC1201210299 174224006 DUP Strontium-90 u 0.0274 U 0.019 pCi/g 0 (0%- 100%) KSDI 10/23/06 14:39 Uncert: +/-0.0243 +/-0.0165 TPU: +/-0.0243 +/-0.0165 QC1201210301 LCS Strontium-90 1.48 1.21 pCi/g 82 (75%-125%) 10/21/06 08:50 94

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174224 Page 10of 12 Parmname NOM Sample Qual QC .Units RPD% REC% Range Anist Date Time Rad Gas Flow Batch 580488 Uncert: +/-0.0826 TPU: +/-0.0897 QC1201210298 MB Strontium-90 U -0.000851 pCi/g 10/21/06 08:50 Uncert: +/-0.0154 TPU: +/-0.0154 QC1201210300 174224006 MS Strontium-90 3.12 U 0.0274 2.73 pCi/g 88 (75%-125%) 10/21/06 08:50 Uncert: +/-0.0243 +/-0.188 TPU: +/-0.0243 +/-0.204 Rad Liquid Scintillation Batch 580395 QC1201210034 174224006 DUP Iron-55 U 2.10 U 6.20 pCi/g 0 (0% - 100%) VIXP1 10/23/06 02:29 Uncert: +/-28.7 +/-29.1 TPU: +/-28.7 +/-29.1 QC1201210036 LCS Iron-55 607 623 pCi/g 103 (75%-125%) 10/23/06 03:02 Uncert: +/-52.8 TPU: +/-73.5 QC1201210033 MB Iron-55 U 2.58 pCi/g 10/23/06 02:12 Uncert: +/-32.0 TPU: +/-32.0 QC1201210035 174224006 MS Iron-55 666 U 2.10 631 pCi/g 95 (75%-125%) 10/23/06 02:45 Uncert: +/-28.7 +/-52.7 TPU: +/-28.7 +/-73.8 Batch 580397 QC1201210042 174224021. DUP Nickel-63 u -2.58 U -5.26 pCi/g 0 (0% - 100%) M'XPI 10/22/06 22:13 Uncert: +/-9.45 +/-8.14 TPU: +/-9.45 +/-8.14 QC1201210044 LCS Nickel-63 180 158 pCi/g 88 (75%-125%) 10/22/06 22:46 Uncert: +/-7.84 TPU: +/-8.98 QC1201210041 MB Nickel-63 U 0.00 pCi/g 10/22/06 21:57 Uncert: +/-2.82 TPU: +/-2.82 QC1201210043 174224021 MS Nickel-63 577 U -2.58 446 pCi/g 77 (75%-125%) 10/22/06 22:30 Uncert: +/-9.45 +/-21.3 TPU: +/-9.45 +1-26.8 Batch 580399 QC1201210050 174224006 DUP Technetium-99 U 0.148 U 0.00881 pCi/g 0 (0% - 100%) KXRI 10/24/06 14:39 95

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174224 Page 11 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Ranee AnIst Date Time Rad Liquid Scintillation Balch 580399 Uncert: +/-0.198 +/-0.205 TPU: +/-0.198 +/-0.205 QC1201210052 LCS Technetium-99 13.0 . 12.5 96 (75%-125%) 10/24/06 15:12 Uncert: +/-0.470 TPU: +/-0.548 QC1201210049 MB Technetium-99 U 0.0518 10/24/06 14:23 Uncert: +/-0.182 TPU: +/-0.182 QC1201210051 174224006 MS Technetium-99 13.1 U 0.148 12.3 pCi/g 94 (75%-125%) 10/24/06 14:55 Uncert: +/-0.198 +/-0.495 TPU: +/-0.198 +/-0.569 Batch 580401 QC1201210058 174224006 DUP Tritium U -0.10 U 0.102 pCilg 0 (0% - 100%) DFAI 10/23/06 17:41 Uncert: +/-2.79 +/-2.85 TPU +/-2.79 +/-2.85 QC1201210060 LCS Tritium 10.7 10.7 pCi/g 100 (75%-125%). 10/20/06 00:59 Uncert: +/-2.15 TPU +/-2.16 QC1201210057 MB Tritium U 1.20 pCi/g 10/20/06 00:10 Uncert: +1-1.56 TPU +/-1.56 QC1201210059 174224006 MS Tritium 48.4 U -0.10 51.7 pCi/g 107 (75%-125%) 10/20/06 00:43 Uncert: +/-2.79 +/-10.2 TPU +/-2.79 +/-10.3 Batch 580402 QC1201210062 174224021 DUP Carbon-14 U -0.105 U -0.0719 pCi/g 0 (0% - 100%) kXD2 10/21/06 19:32 Uncert: +/-0.111 +/-0.109 TPU +/-0.111 +/-0.109 QC1201210064 LCS Carbon- 14 6.99 7.04 pCi/g 101 (75%-125%) 10/21/06 21:06 Uncert: +/-0.236 TPU +/-0.261 QC1201210061 MB Carbon- 14 U -0.0996 pCi/g 10/21/06 18:45 Uncert: +/-0.108 TPU +/-0.108 QC1201210063 174224021 MS Carbon- 14 7.06 U -0.105 6.82 pci/g 97 (75%-125%) 10/21/06 20:19 Uncert: +/-0.111 +/-0.237 TPU +/-0.111 +/-0.260 96

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174224 Page 12 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside of specified acceptance criteria

• Result is less than value reported

   >      Result is greater than value reported A      The TIC is a suspected aldol-condensation product B      Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C      Analyte has been confirmed by GC/MS analysis D      Results are reported from a diluted aliquot of the sample H      Analytical holding time was exceeded J      Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R      Sample results are rejected U      Analyte Was analyzed for, but not detected above the MDL, MDA, or LOD.

Ut Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +l-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more.

** Indicates analyte is a surrogate compound.

A The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result-For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been perfornked tinder NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. 97

General Narrative 1

General Narrative for Connecticut Yankee Atomic Power Co. Work Order: 174341 SDG: MSR#06-1376 October 24, 2006 Laboratory Identification: General Engineering Laboratories, LLC

2040 Savage Road Charleston, South Carolina 29407 (843) 556-8171 Summary Sample receipt The sample arrived at General Engineering Laboratories, LLC, Charleston, South Carolina on October 18, 2006 for analysis. Shipping container temperature was checked, documented, and within specifications. The sample was delivered with proper chain of custody documentation and signatures. All sample containers arrived without any visible signs of tampering or breakage.

Sample Identification The laboratory received the following sample: Laboratory Sample Identification Description 174341001 9520-0002-024F Items of Note There are no items to note. Case Narrative Sample analyses were conducted using methodology as outlined in General Engineering Laboratories (GEL) Standard Operating Procedures. Any technical or administrative problems during analysis, data review, and reduction are contained in the analytical case narratives in the enclosed data package. Analytical Request One soil sample was analyzed for FSSGAM. Data Package The enclosed data package contains the following sections: General Narrative, Chain of Custody and Supporting Documentation, Data Review Qualifier Definitions, and data from the following fractions: Radiochemistry. I certify that this data package is in compliance with the SOW, both technically and for completeness, for other than the conditions detailed above. Release of the data contained in this hard copy data package has been authorized by the Laboratory Manager or a designee, as verified by the following signature. Cher Jl Project Manager GENERAL ENGINEERING LABORATORIES, LLC a Member of THE GEL GROUP, INC. P.O. BOX 30712 Charleslon, SC 29417 " 2040 SaQyge Road (29407) Phone (843) 558-8171

• FesZ43) 766-1178 www.gel.com

List of current GEL Certifications as of 24 October 2006 State Certification Alaska UST-062 Arizona AZ0668 Arkansas 88-0651 CLIA 42D0904046 California 0115]CA Colorado GenEngLabs Connecticut PH-0169 Dept. of Navy NFESC 413 EPA WG-15J Florida/NELAP E87156 Georgia E87156 (FL/NELAP) Hawaii N/A Idaho N/A Illinois 200029 Indiana C-SC-01 Kansas E-10332 Kentucky .90129 Louisiana 03046 Maryland 270 Massachusetts M-SC012 Michigan 9903 Nevada SC12 New Jersey SCO02 New Mexico FL NELAP E87156 New York 11501 North Carolina 233 North Carolina Drinking W 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania 68-00485 South Carolina 10120001/10585001/10120002 Tennessee 02934 Texas TX213-2006A Texas NELAP T104704235-06-TX U.S. Dept. of Agriculture S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont VT87156 Virginia 00151 Washington C1641 3

Chain of Custody and Supporting Documentation 4

Health Physics Procedure GPP-GGGR-R5 104-003-Attachment B-CY-001 Major Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-00635 362 Injun Hollow Road, East Hampton, CT 06424 g60-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested tlab Use OnIly Contact Name & Phone:  ;.Comments:. Jack McCarthy 860-267-3924 Analytical Lab (Name, City, State) General Engineering Laboratories 2040 Savage Road. Charleston SC. 29407 < 843 556 8171. Attn. Cheryl Jones C C. Priority: E 30 D. E] 14 D. 7 D. 33.D.in Cn Sample Size-Sample Designation Date Time Media Type &Type Comment, Preservation LabSafinple ID Code Code Code 9520-0002-024F 10/16/06 1327 TS G BP X - -.-.. " . NOTES: PO #: 002332 MSR#: 06-1)37(. SSWP#NA Z LTPQA El Radwaste QA D Non QA Samples Shipped Via: Internal Container 0 Fed Ex Temip.:. :Deg,. [] uPs El Hand C.custody Sealed?.

:Yr4- ND

1) Rel Date/Time 2) Received By Date/Time Custody Seal ed BV El Other intact?

i,/7/d i22r, 2- X! I~+/- 'L ,C W j L Ij a 92 *Ig,q 2o 3i) V~inquisled Bjy Date/Time 4) Received By Date/Time B7il . Y.['N 0 Bill of Lading #

• Connecticut Yankee Statement of Work for Analytical Lab Services SCY-ISC-SOW-OO1 Figure 1. Sample Check-'in List Date/Time Received: t'-/g- "-

Work Order Number: LA-4 3-t* ) iP-{ 3t " " Shipping Container ID: NI& ,oc?2 '70 6 9' Chain of.Custo4dy tAO - Oo3O o6i1/2-. . Chain of v ..,r? 0 .00,,

1. Custody Seals. ozi shipping container intact?. . -Yes Nio []

2. Custody Seals dated and signed? Yes [ No [1 0.it

3. Chain-of-Custody record present? Yes ['-T"o, [ J

4. Cooler.temperature -/0o

5. . Vermiculite/packing materials is: Wet [ Dry ] A, AlJ

6. Number of samples in shipping container: /-.

7. Sample holding times exceeded? Yes r] No

    .8. Samples have:       -
              .*tape                         --    hazard labels custody seals                  appropriate sample labels

9. Samples are:

ngood condition leaing

              *.broken                            -have    air bubbles

10. Were any anomalies identified in sample receipt?

• Yes [] No 11..D escription of anomalies. (include sample numbers):

                                                                                                                      =. 2 Sample Custodian/Lab 6ratory:      /oy j                                         Date: 4          ,

Telephoned to:__ On RV

                                                         *      .  . . .   . *    . *    .-.

Data Review Qualifier Definitions 7

Data Review Qualifier Definitions Qualifier Explanation

• A quality control analyte recovery is outside of specified acceptance criteria
  • Analyte is a surrogate compound
• Result is less than value reported

> Result is greater than value reported RPD of sample and duplicate evaluated using +/-RL. Concentrations are .5X the RL A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank B Metals-Either presence of analyte detected in the associated blank, or MDL/ItIL < sample value < PQL BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample d 5-day BOD-The 2:1 depletion requirement was not met for this sample E Organics-Concentration of the target analyte exceeds the instrument calibration range E Metals-%difference of sample and SD is >10%. Sample concentration must meet flagging criteria H Analytical holding time was exceeded h Preparation or preservation holding time was exceeded J Value is estimated N Metals-The Matrix spike sample recovery is not within specified control limits N Organics-Presumptive evidence based on mass spectral library search to make a tentative identification of the analyte (TIC). Quantitation is based on nearest internal standard response factor N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the reporting limit U1 Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound Z Paint Filter Test-Particulates passed through the filter, however no free liquids were observed. GENERAL ENGINEERING LABORATORIES, LLC a Member of THE GEL GROUP, INC. P.O. BOX 30712 Charleston, SC 29417 - 2040 Savage Road (29407) Phone (843) 555-8171

• Fax343) 766-1178 www.gel.com

RADIOLOGICAL ANALYSIS 9

Radiochemistry Case Narrative Connecticut Yankee Atomic Power Co. (YANK) Work Order 174341 Method/Analysis Information Product: Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Analytical Method: EML HASL 300, 4.5.2.3 Prep Method: Dry Soil Prep Analytical Batch Number: 581675 Prep Batch Number: 580480 Sample ID Client ID 174341001 9520-0002-024F 1201213157 Method Blank (MB) 1201213158 174346001(9520-0004-00IF) Sample Duplicate (DUP) 1201213159 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-013 REV# 13. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (OC) Information: Blank Information The blank volume is representative of the sample volume in this batch. Designated QC The following sample was used for QC: 174346001 (9520-0004-001F). 10

QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis Sample 174341001 (9520-0002-024F) was recounted due to high MDA. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. Oualifier information Qualifier Reason Analyte Sample U' Data rejected due to high counting uncertainty. Potassium-40 1201213157 Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Review Validation: GEL requires all analytical data to be verified by a qualified data validator. In addition, all data designated for CLP or CLP-like packaging will receive a third level validation upon completion of the data package. The following data validator verified the information presented in this case narrative: Reviewer/Date: K4azo- 1061. 11

SAMPLE DATA

SUMMARY

12

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report for YANK001 Connecticut Yankee Atomic Power Co. Client SDG: MSR#06-1376 GEL Work Order: 174341 The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria
  • Analyte is a surrogate compound U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

U1 Gamma Spectroscopy--Uncertain identification ND The analyte concentration is not detected above the detection limit. The above sample is reported on a dry weight basis except where prohibited by the analytical procedure. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on theCertificate of Analysis. This data report has been prepared and reviewed in accordance with General Engineering Laboratories, LLC standard operating procedures. Please direct any questions to your Project Manager, Cheryl Jones. Reviewed by 13

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 26, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-024F Project: YANK01204 Sample ID: 174341001 Client ID: YANK001 Matrix: Soil Vol. Recv.: Collect Date: 16-OCT-06 Receive Date: 18-OCT-06 Collector: Client Moisture: 5.9% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis GammaSolid-FSS GAM & ALL FSS 226 Ingrowth Waived Actiniurn-228 0.995 +/-0.191 0.0671 +/-0.191 0.144 pCi/g MJHI 10/25/06 1522 581675 1 Americium-241 U 0.0843 +/-0.113 0.097 +/-0.113 0.200 pCi/g Bismuth-212 0.775 +/-0.282 0.138 +/-0.282 0.294 pCi/g Bismuth-214 0.881 +/-0.0992 0.0322 +/-0.0992 0.0683 pCi/g Cesium-134 U 0.043 +/-0.0318 0.0249 +/-0.0318 0.0524 pCi/g Cesium-137 0.0469 +/-0.0259 0.0177 +/-0.0259 0.0377 pCi/g Cobalt-60 U 0.011 +/-0.0225 0.0202 +/-0.0225 0.0441 pCi/g Europium-152 U -0.00948 +1-0.0515 0.0439 +/-0.0515 0.0923 pCi/g Europium- 154 U 0.006 +/-0.0634 0.0547 +/-0.0634 0.119 pCi/g Europium-155 U 0.0556 +/-0.0732 0.0501 +/-0.0732 0.104 pCi/g Lead-212 1.06 +/-0.0676 0.026 +/-0.0676 0.054 pCi/g Lead-214 1.02 +/-0.0948 0.0309 +/-0.0948 0.065 pCi/g Manganese-54 U 0.0177 +/-0.020 0.017 +/-0.020 0.0365 pCi/g Niobium-94 U -0.00361 +/-0.0192 0.0163 +/-0.0192 0.0347 pCilg Potassium-40 13.6 +/-0.909 0.149 +/-0.909 0.335 pCi/g Radium-226 0.881 +/-0.0992 0.0322 +/-0.0992 0.0683 pCi/g Silver-108m U 0.0137 +1-0.0161 0.0154 +/-0.0161 0.0325 pCi/g Thallium-208 0.337 +/-0.0436 0.0145 +/-0.0436 0.0312 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 10/18/06 1634 580480 The following Analytical Methods were performed Method Description EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria

  <    Result is less than value reported 14

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Contnecticut 06424 Report Date: October 26, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9520-0002-024F Project: YANK01204 SamplelD: 174341001 ClientID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

 > Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 15

I, II QUALITY CONTROL DATA I 16

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary ReDort Date: October 26, 2006 Client : Connecticut Yankee Atomic Power Page 1 of 5 362 Injun Hollow Rd East Hampton, Connecticut Contact: Mr. Jack McCarthy Workorder: 174341 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 581675 QC 1201213158 174346001 DUP Actinium-228 0.739 0.528 pCi/g 33 (0%- 100%) MJHI 10/25/0611:04 Uncert: +/-0.156 +/-0.123 TPU: +/-0.156 +/-0.123 Americium-241 U -0.00139 U 0.0268 pCilg 222 (0% - 100%) Uncert: +/-0.0236 +/-0.0262 TPU: +/-0.0236 +/-0.0262 Bismuth-212 0.368 0.431 pCi/g 16 (0%- 100%) Uncert: +/-0.265 +/-0.250 TPU: +/-0.265 +/-0.250 Bismuth-214 0.442 0.468 pCi/g 6 (0%- 100%) Uncert: +/-0.0807 +/-0.0892 TPU: +/-0.0807 +/-0.0892 Cesium- 134 U1 0.00 U 0.0283 pCi/g 75 (0%- 100%) Uncert: +/-0.0441 +/-0.0245 TPU: +/-0.0441 +/-0.0245 Cesium- 137 U 0.0319 0.0366 pCi/g 14 (0%- 100%) Uncert: +/-0.0333 +/-0.0293 TPU: +/-0.0333 +/-0.0293 Cobalt-60 U -0.00636 U 0.020 pCi/g 387 (0%- 100%) Uncert: +/-0.0198 +1-0.0248 TPU: +1-0.0198 +/-0.0248 Europium- 152 U 0.00386 U 0.00827 pCi/g 73 (0% - 100%) Uncert: +/-0.0449 +/-0.0545 TPU: +/-0.0449 +/-0.0545 Europium-154 U 0.0267 U 0.0258 pCi/g 3 (0%- 100%) Uncert: +/-0.0569 +/-0.0664 TPU: +/-0.0569 +/-0.0664 Europium- 155 U 0.0194 U 0.0266 pCilg 31 (0% - 100%) Uncert: +/-0.0412 +/-0.0399 TPU: +/-0.0412 +/-0.0399 Lead-212 0.412 0.485 pCi/g 16 (0% - 100%) Uncert: +/-0.0541 +/-0.0603 TPU: +/-0.0541 +1-0.0603 Lead-214 0.499 0.530 pCilg 6 (0%-20%) Uncert: +/-0.0827 +/-0.0836 TPU: +/-0.0827 +/-0.0836 Manganese-54 U 0.00185 U 0.0212 pCi/g 168 (0%-100%) Uncert: +/-0.0195 +/-0.0239 TPU: +/-0.0195 +/-0.0239 Niobium-94 U -0.00452 U 0.0106 pCi/g 496 (0% - 100%). Uncert: +/-0.0184 +/-0.0182 TPU: +/-0.0184 +/-0.0182 17

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174341 Page 2 of 5 Parnmame NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 581675 Potassium-40 6.70 7.13 pCi/g 6 (0% - 20%) Uncert: +/-0.609 +/-0.710 TPU: +/-0.609 +/-0.710 Radium-226 0.442 0.468 pCilg 6 (0%- 100%) Uncert: +/-0.0807 +/-0.0892 TPU: +/-0.0807 +/-0.0892 Silver- 108m u 0.00712 U -0.00779 pCi/g 4430 (0%- 100%) Uncert: +/-0.0152 +/-0.0154 TPU: +/-0.0152 +/-0.0154 Thallium-208 0.183 0.186 pCi/g 2 (0%- 100%) Uncert: +/-0.0403 +/-0.0412 TPU: +/-0.0403 +/-0.0412 LCS Actinium-228 U 0.743 pCi/g 10/25/06 07:15 Uncert: +/-0.554 TPU: +/-0.554 Americium-241 23.4 24.4 PCi/g 104 (75%-125%) Uncert: +/-1.27 TPU: +1-1.27 Bismuth-212 U -0.111 pCilg Uncert: +/-1.11 TPU: +/-1.11 Bismuth-214 U 0.247 pcilg Uncen: +/-0.204 TPU: +/-0.204 Cesium-134 U 0.0584 pCilg Uncert: +/-0.143 TPU: +/-0.143 Cesium- 137 9.55 9.67 PCilg 101 (75%-125%) Uncert: +/-0.437 TPU: +/-0.437 Cobalt-60 14.2 14.6 pCi/g 102 (75%-125%) Uncert: +/-0.633 TPU: +/-0.633 Europium- 152 U 0.219 pCi/g Uncert: +/-0.293 TPU: +/-0.293 Europium- 154 U -0.0828 pci/g Uncert: +/-0.303 TPU: +/-0.303 Europium- 155 U 0.164 pci/g Uncert: +/-0.307 TPU: +/-0.307 Lead-212 U 0.0745 PCi/g Uncert: +/-0.163 TPU: +/-0.163 Lead-214 U 0.247 pCi/g Uncert: +/-0.350 18

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summnary Workorder: 174341 Page 3 of 5 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 581675 TPU: +/-0.350 Manganese-54 U 0.00541 pCilg Uncert: +/-0.137 TPU: +/-0.137 Niobium-94 U -0.0757 pci/g Uncert: +/-0.111 TPU: +/-0.111 Potassium-40 U -0.178 pCi/g Uncert: +/-0.986 TPU: +/-0.986 Radium-226 U 0.247 .pCi/g (75%-125%) Uncert: +1-0.204 TPU: +/-0.204 Silver- 108m U 0.0371 pCilg Uncert: +/-0.113 TPU: +/-0.113 Thallium-208 U 0.0403 pCi/g Uncert: +/-0.114 TPU: +/-0.114 QC1201213157 MB Actinium-228 U 0.0547 pCi/g 10/25/06 10:33 Uncert: +/-0.0339 TPU: +/-0.0339 Americium-241 U 0.035 PCi/g Uncert: +/-0.0503 TPU: +/-0.0503 Bismuth-212 U 0.0861 pCi/g Uncert: +/-0.0721 TPU: +/-0.0721 Bismuth-214 U 0.0234 pCilg Uncert: +/-0.0389 TPU: +/-0.0389 Cesium-134 U 0.00174 pCi/g Uncert: +1-0.00859 TPU: +/-0.00859 Cesium- 137 U -0.00489 pCi/g Uncert: +/-0.00879 TPU: +/-0.00879 Cobalt-60 U -0.00292 pCi/g Uncert: +/-0.00844 TPU: +/-0.00844 Europium-152 U -0.0124 pCi/g Uncert: +/-0.0226 TPU: +/-0.0226 Europium- 154 U -0.0125 pCi/g Uncert: +/-0.0235 TPU: +/-0.0235 Europium- 155 U -0.00752 pCilg 19

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174341 Page 4 of 5 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 581675 Uncert: +/-0.027 TPU: +/-0.027 Lead-212 U 0.00708 pCi/g Uncert: +/-0.0292 TPU: +/-0.0292 Lead-214 U 0.0307 pCi/g Uncert: +/-0.032 TPU: +/-0.032 Manganese-54 U -0.003 pCi/g Uncert: +/-0.00927 TPU: +/-0.00927 Niobium-94 U 0.0088 pCi/g Uncert: +/-0.00881 TPU: +/-0.00881 Potassium-40 UI 0.00 pCi/g Uncert: +/-0.169 TPU: +/-0.169 Radium-226 U 0.0234 pCi/g Uncert: +/-0.0389 TPU: +/-0.0389 Silver- 108m U -0.00204 pCi/g Uncert: +/-0.00779 TPU: +/-0.00779 Thallium-208 U 0.00488 pCi/g Uncert +/-0.0168 TPU: +/-0.0168 Notes: The Qualifiers in'this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria
• Result is less than value reported

   >      Result is greater than value reported A     The TIC is a suspected aldol-condensation product B     Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is l0w C     Analyte has been confirmed by GC/MS analysis D     Results are reported from a diluted aliquot of the sample H     Analytical holding time was exceeded J     Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R     Sample results are rejected U     Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier 20

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 174341 Page 5 of 5 Parmname NOM Sample Qual QC Units RPD% REC% RanRe Anist Date Time Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5 h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more.

** Indicates analyte is a surrogate compound.

A The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result. For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. 21

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD ATTACHMENT 4 (DQA RESULTS)

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD ATTACHMENT 4A (PRELIMINARY DATA REVIEW)

PRELIMINARY DATA REVIEW FORM Survey Unit: 9520-0002 Survey Unit Name: Southwest Site Storage area Classification : 2 Survey Media: Soil Type of Survey: Final Status Survey Type of Measurement: Radionuclide Specific [umber of Measurements: 15 BASIC STATISTICAL QUANTITIES Cs-137 Target Level (pCi/g): 5.38E+00 Minimum Value: 0.OOE+00 Maximum Value: 3.30E-01 Mean: 1.03E-01 Median: 9.08E-02 Standard Deviation : 8.16E-02 Reported Results Cs-137 Fraction of Concentration Target Sample Identification (pCi/g) Detect? Level 9520-0002-001 F 3.86E-02 0.007 9520-0002-002F 9.53E-02 + 0.018 9520-0002-003F 3.16E-02 + 0.006 9520-0002-004F 1.13E-01 + 0.021 9520-0002-005F 0.00E+00 0.000 9520-0002-006F 5.30E-02 + 0.010 9520-0002-007F 1.16E-01 + 0.022 9520-0002-008F 8.01 E-02 + 0.015 9520-0002-009F 8.34E-02 + 0.016 9520-0002-01 OF 4.16E-02 + 0.008 9520-0002-01 IF 9.08E-02 + 0.017 9520-0002-012F 3.30E-01 + 0.061 9520-0002-013F 2.03E-01 + 0.038 9520-0002-014F 9.68E-02 + 0.018 9520-0002-015F 1.67E-01 + 0.031 Submitted by/Date J 1 off I

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD ATTACHMENT 4B (GRAPHICAL REPRESENTATION OF DATA)

FREQUENCY PLOT FOR CESIUM-137 Survey Unit: 9520-0002 Survey Unit Name: Southwest Site Storage Area Mean: 1.03E-01 pCi/g Frequency Plot For Cs-137

                 ,4£'1=

IU I 0 Cr IL 4 2 0 O.OOE+O0 8.25E-02 1.65E-01 2.48E-01 3.30E-01 Upper End Value (pCilg) Upper End Observation Observation Value Frequency Frequency 0.OOEi00 1 7%

                                  .8.25 E-02         5            33%

1.65E-01 6 40% 2.48E-01 2 13% 3.30E-01 1 7% Total: 15 1.00% Submitted by/Date' .) \J Rev* *wed by te 1 of 1

QUANTILE PLOT FOR CESIUM-137 Survey Unit: 9520-0002 Survey Unit Name: Southwest Site Storage Area Mean: 1.03E-01 pCi/g Quantile Plot For Cs-137 3,50E-01 3.00E-01 0- 2.50E-01

         '.l 2.00E-01 E     1.50E-01 C

00 1.OE-01 5,00E-02 0.OOE+00 0 20 40 60 80 100 Percentage Cs- 137 Rank. Percentage O.OOE 100 I.

3. 16E-02 3 10%

3.86E-02 17% 4.16E-02 4 5.30E-02 5 30% 8.01 E-02 6 37% 8.34E-02 7 43% 9.08 E-02 8 50% 9.53E-02 .9 57% 9.68E-02 10 63% 1.13E-01 II 70%

1. 16E-01 12 77%

1.67E-01 13 83% 2.03E-0 1 14 90% 3.)3OE-01 15 97% Submitted by/Date&-' VIJI;

                              ,/ I  Jo(,

Reviewed(by/rate

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD ATTACHMENT 4C (SIGN TEST)

Connecticut Yankee Decommissioning Project GPP-GGGR-R5]121-001 Attachment A, Health Physics Procedure Rev CY-001 MAJOR Sign Test Calculation Sheet For A Single Radionuclide or Gross Activity Measurements Survey Area Number: 9520 Survey Unit Number: 0002 Survey Area Name: Southwest Site Storage Area WPIR#: 2006-003 8 Classification: 2 Type I (at error): 0.05 (N): 15 Radionuclide: Cs-137 DCGL: 5.38 Results (pCi/g) DCGL - Results Sign 3.86E-02 5.34E+00 I 9.53E-02 5.28E+00 I 3.16E-02 5.35E+00 I 1.13E-01 5.27E+00 1 O.OOE+00 5.38E+00 I 5.30E-02 5.33E+00 I 1.16E-01 5.26E+00 1 8.01E-02 5.30E+00 I 8.34E-02 5.30E+00 I 4.16E-02 5.34E+00 I 9.08E-02 5.29E+00 I 3.30E-01 5.05E+00 I 2.03E-01 5.18E+00 1 9.68E-02 5.28E+00 I 1.67E-01 5.21E+00 1 Number of positive differences (S+): 15 Critical Value: 11 Survey Unit Meets Acceptance Criterion Performed by: ek ef --4 *_e Date: /i r "6-, Independent Review by' \ - Date: I/, QJ Page 1 of 1

SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD ATTACHMENT 4D (QC SPLIT RESULTS)

Health Physics Procedure 24265ý000-GPP-GGGR-R5]24--OOO-Rev.CY-000 Attachment A Health Physics Procedure 24265-000-GPP-GGGR-R5 I 24:000~Rev.CY~000 Attachment A Split Sample Assessment Form Survey Area#: 9520 Survey Unit #: 0002 Survey Unit name: Southwest Site Storage Area Sample Plan or WPIR#: 2005-0038 SML#: 9520-0002-011 Sample

Description:

Comparison of split samples collected from sample measurement location #11 and analyzed using gamma spectroscopy by off-site Vendor Laboratory. The standard sample was 9520-0002-01 IF, the comparison sample was 9520-0002-011 FS. STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (Y/N) K-40 11.1 6.7E-1 16 0.75- 1.33 10.2 4.05E-1 0.92 Y Comments/Corrective Actions: Not enough Cs- 137 to Table is provided to show acceptance criteria yield an acceptable Resolution used to assess split samples. Resolution Agreement Range 4-7 0.5 -2.0 8 -15 0.6 - 1.66 16 -50 0.75 -1.33 51 - 200 0.80 - 1.25

                                                                           >200          0.85-1.18

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Health Physics Procedure 24265-000-GPP-GGGR-R5124-000-Rev.CY-000 Attachment A Health Physics Procedure 24265-000-GPP-GGGR-R5 124-000-Rev.CY-000 Attachment A Split Sample Assessment Form Survey Area#: 9520 Survey Unit #: 0002 Survey Unit name: Southwest Site Storage Area Sample Plan or WPIR#: 2005-0038 SMiL#: 9520-0002-012 Sample

Description:

Comparison of split samples collected from sample measurement location #12 and analyzed using gamma spectroscopy by off-site Vendor Laboratory. The standard sample was 9520-0002-012F, the comparison sample was 9520-0002-012FS. STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (YIN) Cs-137 3.3E-1 1.78E-2 18 0.75-1.33 3.5E-1 2.21E-2 1.06 Y Comments/Corrective Actions: N/A Table is provided to show acceptance criteria used to assess split samples. Resolution Agreement Range 4-7 0.5-2.0 8-15 0.6 - 1.66 16-50 0.75 - 1.33 51-200 0.80 - 1.25

                                                                           >200          0.85- 1.18 I

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SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9520-0002 RELEASE RECORD ATTACHMENT 4E (COMPASS DQA WITH POWER CURVE)

DQA Surface Soil Report Assessment Summary Site: 9520-0002 FSS Planner(s): McCarthy Survey Unit Name: Southwest Site Storage Area Report Number: 1 Survey Unit Samples: 15 Reference Area Samples: 0 Test Performed: Sign Test Result: Not Performed Judgmental Samples: 0 EMC Result Not Performed Assessment

Conclusion:

Reject Null Hypothesis (Survey Unit PASSES) Retrospective Power Cu rve_ 2 0.9 0.8 0.7 o 0.6 0.5 0.4 4 0.3 0.1 0-

                    ~J0.

0 1 2 3 4 5 6 Soil Concentration (pCi/g), including background Prospective Power M I-beta Actual Power

                     --  LBGR                  *     ' Estimated Power
                    -    DCGL                   .... Retrospective Power COMPASS v0.0.0                                            1214/2006                                          Page I}}