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Jack McCarthy 860-267-3924 Analytical Lab (Name, City, State)
Jack McCarthy 860-267-3924 Analytical Lab (Name, City, State)
General Engineering Laboratories                                                    C    <
General Engineering Laboratories                                                    C    <
2040 Savage Road. Charleston SC. 29407 843 556 8171. Attn. Cheryl Jones
2040 Savage Road. Charleston SC. 29407 843 556 8171. Attn. Cheryl Jones Priority: [] 30 D. Z 14 D. 1 7 D. 13 D.                                    C Container Sample      Size-Time      Media      Type    &Type                                        Comment. Preservation      Lab Sample ID Sample Designation              Date Code      Code      Code 9530-0003-OO1F                9/12/06        1042      TS        G        BP      X 9530-0003-002F                9/12/06        1047      TS        G        BP    X 9530-0003-003F                9/12/06        1051      TS        G        BP    X 9530-0003-004F                9/12/06        1101      TS        G        BP    X 9530-0003-004FS              9/12/06        1101      TS        G        BP      X 9530-0003-005F                9/12/06        1105      TS        G        BP    X 9530-0003-006F                9/12/06        1105      TS        G        BP    X 9530-0003-006FS              9/12/06        1105      TS        G        BP    X 9530-0003-007F                9/12/06        1325      TS        G        BP    X 11  Non QA    Samples Shipped Via:      Internal Container NOTES: PO #: 002332              MSR #: 06-12S.%'    SSWP# NA        E  LTP QA    [] Radwaste QA                                              Temp.: 27 Deg.
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Priority: [] 30 D. Z 14 D. 1 7 D. 13 D.                                    C Container Sample      Size-Time      Media      Type    &Type                                        Comment. Preservation      Lab Sample ID Sample Designation              Date Code      Code      Code 9530-0003-OO1F                9/12/06        1042      TS        G        BP      X 9530-0003-002F                9/12/06        1047      TS        G        BP    X 9530-0003-003F                9/12/06        1051      TS        G        BP    X 9530-0003-004F                9/12/06        1101      TS        G        BP    X 9530-0003-004FS              9/12/06        1101      TS        G        BP      X 9530-0003-005F                9/12/06        1105      TS        G        BP    X 9530-0003-006F                9/12/06        1105      TS        G        BP    X 9530-0003-006FS              9/12/06        1105      TS        G        BP    X 9530-0003-007F                9/12/06        1325      TS        G        BP    X 11  Non QA    Samples Shipped Via:      Internal Container NOTES: PO #: 002332              MSR #: 06-12S.%'    SSWP# NA        E  LTP QA    [] Radwaste QA                                              Temp.: 27 Deg.
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Latest revision as of 22:13, 13 March 2020

Final Status Survey Release Record Central Peninsula Survey Unit 9530-0003.
ML063540281
Person / Time
Site: Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date: 11/26/2006
From: Mccarthy J
Connecticut Yankee Atomic Power Co
To:
NRC/FSME
References
Download: ML063540281 (118)
v • d • e


Text

CYAPCO FINAL STATUS SURVEY RELEASE RECORD CENTRAL PENINSULA SURVEY UNIT 9530-0003 Prepared By: jlck f~24A Date: /*d-rlye Reviewed B A Date("

Approved By: T)[. Date:_____

Technical Support Manager Revision 0

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD TABLE OF CONTENTS

1. SURVEY UNIT DESCRIPTION ...................................................... 3
2. CLASSIFICATION BASIS .......................................... 3
3. DATA QUALITY OBJECTIVES (DQO) .......................................... 5
4. SURV EY D ESIGN ............................................................................. 8
5. SURVEY IMPLEMENTATION ....................................................... 11
6. SURVEY RESULTS ......................................................................... 12
7. QUALITY CONTROL .................................................................... 15
8. INVESTIGATIONS AND RESULTS .............................................. 15
9. REMEDIATION AND RESULTS ................................................... 15
10. CHANGES FROM THE FINAL STATUS SURVEY PLAN ...... 15
11. DATA QUALITY ASSESSMENT (DQA) ...................................... 16
12. A NO MA LIE S .................................................................................... 16
13. C ON C LU SION .................................................................................. 16
14. A TTA CHM EN TS ............................................................................. 17 14.1 Attachment 1 - Figures (6 pages including cover) 14.2 Attachment 2 - Scan Results (3 pages including cover) 14.3 Attachment 3 - Laboratory Data (78 pages including cover) 14.4 Attachment 4- DQA Results (14 pages including covers)

TOTAL 118 Revision 0

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD

1. SURVEY UNIT DESCRIPTION Survey Unit 9530-0003 (Central Peninsula) is designated as Final Status Survey (FSS) Class 2 and consists of 6,438 m 2 (1.6 acres) of uninhabited open land located approximately 3,160 feet from the reference coordinate system benchmark used at Haddam Neck Plant (HNP) (see Attachment 1). The survey unit is bounded by land Survey Unit 9530-0004. The survey unit is relatively level open space in the middle of the peninsula. The restoration of the peninsula for FSS has removed most surface interference in the survey unit.

The reference coordinates associated with this survey unit are E015 through E022 by S I10 through S 116 (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 historical information, scoping analyses and characterization results provided sufficient data to designate Survey Unit 9530-0003 as Class 2 in September 2006.

The "Classification Basis Summary" conducted for Survey Unit 9530-0003 consisted of:

a) A review of the 10CFR50.75 (g) (1) database, b) A review of the "Initial CharacterizationReport" 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 identified two documents associated with this survey unit.

a) Northeast Utilities Radiological Assessment Branch memo NE-86-RA-1142: Relates to dredging of two areas of the Discharge Canal to support the Low Pressure Turbine replacement project. Spoils from dredging were relocated to this survey unit and adjacent survey unit 9530-0002.

b) Condition Report (CR) 98-0049: Documents that dredge spoils from the Discharge Canal contained radioactive material in 1987.

A review of the "Initialand Supplemental CharacterizationReports" as well as the previous "Classification Basis Summaries" provided no additional information pertinent to classification.

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CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD The survey unit had undergone FSS in the fall of 2004 and release records documenting the satisfactory completion of the FSS objectives were in preparation. In 2006, utilities were being removed as part of the decommissioning effort on the Upper Peninsula. Construction debris including Asbestos Containing Material (ACM) was identified and remediated. In addition to the ACM, several objects were also identified that had detectable radioactivity. Two pieces of angle iron were located in a water utility trench in adjacent Survey Unit 9530-0004. Most of the work involved two areas adjacent to Survey Unit 9530-0003. Based on the potential to change the final radiological status of the survey unit, another FSS was considered prudent to define the as-left radiological condition.

Soil samples were collected in 2006 to establish the radiological condition of the surface and subsurface area following removal of soil. Cs-137 was the only gamma emitting radionuclide reported in concentrations with the potential for exceeding the screening criteria. Therefore, the previous FSS data and statistical parameters were used for the survey design. Statistical quantities from the previous FSS survey are provided in Table 1.

Table 1 - Bas;ic Statistical Quantities for Cs-f37from= the prevno FS uAey Minimum Observed Concentration (pCi/g): 1.07E-01 Maximum Observed Concentration (pCi/g): 4.15E-01 Mean (pCi/g): 2.65E-01 Median (pCi/g): 2.64E-01 Standard Deviation (pCi/g): 7.13E-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 historical information and the results of radiological surveys performed during characterization, it was concluded that there was a low probability for residual radioactivity to be present in this survey unit in concentrations greater than the Operational Derived Concentration Guideline Levels (DCGLs) justifying a final survey unit classification of Class 2 (refer to Section 3).

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CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD

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 technically known 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.

The primary objective of the FSS plan was to demonstrate that the level of residual radioactivity in Survey Unit 9530-0003 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 DCGLs. 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.

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CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD Equation 1 HTotal Hsoil +/- HExistingGW + HFutureGW The total dose under the LTP criteria is twenty-five (25) mremlyr 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) mrem/yr 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 mrem/yrTotal = 17 mrem/yrsoil + 2 mrem/yrExisting GW+ 0 mrem/yrFutureGW 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.

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CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD fTable 2 - Radionu~clide Specific Banse Case Soil DCGL, Operaitional DC(GLs dBae ( C*tse Soil peritionA DCGL Required MDC H-3 4.12E+02 2.80E+02 1.65E+O1 I C-14 5.66E+00 3.85E+00 2.26E-01 Mn-54 1.74E+01 1.18E+01 6.96E-0I Fe-55 2.74E+04 1.86E+04 1.1 OE+03 Co-60 3.81E+00 2.59E+00 1.52E-01 Ni-63 7.23E+02 4.92E+02 2.89E+O1 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-01 Ag-108m 7.14E+00 4.86E+00 2.86E-01 Cs-134 4.67E+00 3.18E+00 1.87E-01 Cs-137 7.91E+00 5.38E+00 3.16E-0 I 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+01 2.01E+O1 1. 18E+00 Pu-239/240 2.67E+01 1.82E+01 1.07E+00 Pu-241 8.70E+02 5.92E+02 3.48E+O 1 Am-241 (5) 2.58E+01 1.75E+01 1.03E+00 Cm-243/244 2.90E+0 1 1.74E+01 1. 16E+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 required MDC is equivalent to I mrem/yr TEDE (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 the surface and subsurface area following removal of soil. Cs-137 was the only gamma emitting radionuclide reported in concentrations with the potential for exceeding the screening criteria. The previous FSS data and statistical parameters were used for the survey design and are provided in Table 1.

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CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD 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 9530-0003 (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 based the previous FSS of this survey unit and 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 was selected as the non-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 Surface Samples for Final Status Survey." The Lower Bound of the Gray Region (LBGR) was set in accordance with Procedure RPM 5.1-11 to 5.24 to maintain the relative shift (A/o) in the range of 1 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 Revision 0 8 Revision 0 8

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD 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 one (1) sample 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.

Ta~ble 3 -Sample Measurement Locations vwithi Associated GPS Coordinates De'signatioii Northing Eas~ting 9530-0003-001F 235444.17 671142.01 9530-0003-002F 235444.17 671214.42 9530-0003-003F 235381.47 671105.81 9530-0003-004F 235381.47 671178.21 9530-0003-005F 235381.47 671250.62 9530-0003-006F 235381.47 671323.03 9530-0003-007F 235318.76 671069.60 9530-0003-008F 235318.76 671142.01 9530-0003-009F 235318.76 671214.42 9530-0003-01,OF 235318.76 671286.82 9530-0003-OIF 235256.05 671105.81 9530-0003-012F 235256.05 671178.21 9530-0003-013F 235256.05 671250.62 9530-0003-014F 235193.35 671142.01 9530-0003-015F 235193.35 671214.42 9530-0003-016F 235221.79 671062.34 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 Revision 0 9 Revision 0 9

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD 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 that scanning will be performed along with a combination of systematic and judgmental measurements (samples) for a Class 2 land area and should cover between 10% to 100% of the area. 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 three (3) separate areas. The total surface area to be scanned was approximately 12% of the survey unit. A map of the scan grid locations is provided in Attachment 1.

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.

Nurvey Unit Land Area 6,4-3 m"t based on AutoCAV-LI Type I and Type 2 errors were 16 0.05, sigma was 0.071 pCi/g, Number of Measurements (15 systematic grid) the LBGR was adjusted to 5.24 (1 biased) to maintain Relative Shift in the range of 1 and 3 Grid Spacing 22.3 m Based on triangular grid Administratively set to achieve Operational DCGL 5.38 pCi/g Cs-137 17 mrem/yr TEDE (1)

The Operational DCGL meets Soil Investigation Level 5.38 pCi/g Cs-137 the LTP criteria for a Class 2 1 1 survey unit Revision 0 10 Revision 0 10

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD Scan Survey Area Approximately 12% i ne L I i" requires - I 'ro area coverage for Class 2 survey Coverage of the area units Detectable over Administratively set to achieve Scan Investigation Level 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 from existing and future groundwater has been established based on field data (reference CY memo ISC 06-024)

5. SURVEY IMPLEMENTATION Final status survey 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.

Two (2) scan areas were established that constituted approximately 12% of the surface area of Survey Unit 9530-0003. Grid lines, one meter wide, were painted on the ground of the scan area. A background survey was performed around the survey unit and it was determined that, using an Eberline E-600 with a SPA-3 sodium iodide detector, background ranged from 6,280 counts per minute (cpm) up to 8,220 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 to the ground as possible and was moved at a scan speed of about 0.5 meters per second. Approximately 12% 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.

Sixteen (16) 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 Final Status Survey Samples."

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CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD Two (2) samples (9530-0003-013F and 9530-0003-014F) were randomly selected for HTD radionuclide analysis.

The implementation of survey specific quality control measures included the collection of two (2) samples (9530-0003-004F and 9530-0003-006F) for "split sample" analysis.

6. SURVEY RESULTS All field survey activities were conducted between September 12, 2006 and September 13, 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.

~Table 5-,-Scan Results for Sample Measurement L~ocations mpie>>. Highest Logge. d Action Level ()

Measureluent <+>>Reading Aclion LeI (2)

Location '(kcpm) 1 7.55 8.57 NO 2 7.26 8.87 NO 3 7.60 8.66 NO 4 7.57 8.77 NO 5 8.28 9.45 NO 6 6.53 7.59 NO 7 7.50 7.89 NO 8 7.69 8.51 NO 9 7.08 8.62 NO 10 7.72 9.05 NO 11 7.49 7.89 NO 12 7.46 8.59 NO 13 7.28 8.22 NO 14 6.38 8.37 NO 15 8.60 9.02 NO 16 5.87 7.34 NO (1) The action level is based on a measurement above ambient background in accordance with the FSS plan Revision 0 12

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD Table r 5 -uScan Results for Sample Measurement Locationsth Sani~Ie HighstLgged'~ Action Level ~ 2 Measuremient" Readfn-,(kcm) Action Level LAoc'at ion ~ (kcji1),

(2) The FSS plan requires movement of the sample measurement location to the area within the 1 meter radius yielding the response above the action level The scan areas, that comprised approximately 12% 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 September 12, 2006 and September 13, 2006. No elevated measurement locations were identified during scanning.

Table 6 provides an overview of the scan area survey. Scan results are provided in Attachment 2.

Table 6 - Scan Area Results A rea "Reading (kcpm) Red~g~ Sample >>

1 8.35 9.40 elevated areas None identified None - no 2 8.83 9.16 elevated areas None identified (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, and the one (1) biased sample 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 all 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-137 was present at levels lower than the concentrations of Cs-137 found in soil at off-site locations within the vicinity of the HNP as presented in the Health Physics TSD BCY-HP-0063.

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CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD A summary of the fifteen (15) samples collected for non-parametric statistical testing results is provided in Table 7.

9530-0003-00 1F 1.41E-01 0.026 9530-0003-002F 3.26E-01 0.061 9530-0003-003F 2.83E-01 0.053 9530-0003-004F 3.09E-01 0.057 9530-0003-005F 4.87E-01 0.091 9530-0003-006F 9.57E-02 0.018 9530-0003-007F 5.70E-02 0.011 9530-0003-008F 2.89E-01 0.054 9530-0003-009F 3.95E-01 0.073 9530-0003-OIOF 2.87E-01 0.053 9530-0003-01 F 2.27E-01 0.042 9530-0003-012F 3.19E-01 0.059 9530-0003-013F 2.27E-01 0.042 9530-0003-014F 1.17E-01 0.022 9530-0003-015F 1.63E-01 0.030 (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. Tc-99 was the only HTD, which by analysis, met the criteria for detection (i.e., a result greater than two standard deviations uncertainty). The highest result for Tc-99 was at 2.9% of the Operational DCGL.

Revision 0 14

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD 9530-0003-014F 2.74E-01 0.029 (1) The Operational DCGL from Table 2 is 8.57 pCi/g for Tc-99 to achieve 17 mrem/yr TEDE One (1) biased sample was collected at a location selected by FSS Supervision based on professional judgment and observation. Gamma spectroscopy analysis was performed by the off-site laboratory to the required MDC.

Table1 ~-Judgmental or Biased Sample Results Sample Number-C13Frcinoth pCi/. ..... ii: Operational DCGL) 9530-0003-016F 9.17E-02 0.017 (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% minimum required by the LTP. The data were evaluated using USNRC acceptance criteria specified in Inspection Procedure 84750 as detailed in HNP Procedure RPM 5.1-24, "Split Sample Assessment for Final Status Survey." There was acceptable agreement between field split results for Cs-137 at both locations.

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.

8. INVESTIGATIONS AND RESULTS No confirmatory samples were necessary.
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.

Revision 0 15 Revision 0 15

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD

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 -30% of the standard deviation which indicates some 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 0.17.

All data, assessments, and graphical representations are provided in Attachment 4.

12. ANOMALIES No anomalies were noted.
13. CONCLUSION Survey Unit 9530-0003 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.

Revision 0 16 Revision 0 16

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD 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) mremlyr TEDE.

This survey unit is not considered impacted by future groundwater radioactive contamination, as there are 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) mrem/yr 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 9530-0003 is acceptable for unrestricted release.

14. ATTACHMENTS 14.1 Attachment 1 - Survey Unit Location Map 14.2 Attachment 2 - Scan Results 14.3 Attachment 3 - Laboratory Results 14.4 Attachment 4 - DQA Results Revision 0 17

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD ATTACHMENT 1 (FIGURES)

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  • Site Map With Reference To Survey Umt 9530-0003

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0 30 60 P=========MFed Connecticut Yankee Atomic Power Company Survey Unit 9530-0003FinalStatus Survey Cs-137PostingPlot

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CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD ATTACHMENT 2 (SCAN RESULTS)

Survey Release Record Sample Location Scan Results Survey Unit 9530-0003 Sample Name Background Action Level Results Above Log Date Log Time E600 S/N Probe S/N (cpm) (cDm) AL 9530-03-SL-00-01 -0 7.35E+03 8.57E+03 7.55E+03 9/12/2006 10:40:00 1116 1006 9530-03-SL-00-02-0 7.62E+03 8.87E+03 7.26E+03 9/12/2006 10:46:00 1116 1006 9530-03-SL-00-03-0 7.43E+03 8.66E+03 7.60E+03 9/12/2006 10:51:00 1116 1006 9530-03-SL-00-04-0 7.53E+03 8.77E+03 7.57E+03 9/12/2006 11:01:00 1116 1006 9530-03-SL-00-05-0 8.16E+03 9.45E+03 8.28E+03 9/12/2006 11:05:00 1116 1006 9530-03-SL-00-06-0 6.44E+03 7.59E+03 6.53E+03 9/12/2006 13:04:00 1116 1006 9530-03-SL-00-07-0 6.72E+03 7.89E+03 7.50E+03 9/12/2006 13:31:00 1116 1006 9530-03-SL-00-08-0 7.29E+03 8.51 E+03 7.69E+03 9/12/2006 13:45:00 1116 1006 9530-03-SL-00-09-0 7.39E+03 8.62E+03 7.08E+03 9/12/2006 13:59:00 1116 1006 9530-03-SL-00-10-0 7.79E+03 9.05E+03 7.72E+03 9/12/2006 11:23:00 1116 1006 9530-03-SL-00-11-0 6.72E+03 7.89E+03 7.49E+03 9/12/2006 14:26:00 1116 1006 9530-03-SL-00-12-0 7.36E+03 8.59E+03 7.46E+03 9/12/2006 14:40:00 1116 1006 9530-03-SL-00-13-0 7.02E+03 8.22E+03 7.28E+03 9/12/2006 14:46:00 1116 1006 9530-03-SL-00-14-0 7.16E+03 8.37E+03 6.38E+03 9/12/2006 14:58:00 1116 1006 9530-03-SL-00-15-0 7.76E+03 9.02E+03 8.60E+03 9/12/2006 14:52:00 1116 1006 9530-03-SL-00-16-0 6.21E+03 7.34E+03 5.87E+03 9/12/2006 15:01:00 1116 1006 AL - Action Level

Survey Release Record Scan Area Results Survey Unit 9530-0003 9530-0003 SCAN AREA 1 Background Action Level Results Above Log Date Log Time E600 SIN Probe SIN Sample Name lCPM) AL 9530-03-SC-01-01-0 6.63E+03 7.79E+03 6.73E+03 9/12/2006 13:30:00 1117 1008 9530-03-SC-01-02-0 7.72E+03 8.97E+03 6.67E+03 9/12/2006 13:35:00 1117 1008 9530-03-SC-01-03-0 6.75E+03 7.92E+03 6.68E+03 9/12/2006 13:38:00 1117 1008 9530-03-SC-01-04-0 7.75E+03 9.01E+03 6.05E+03 9/12/2006 13:42:00 1117 1008 9530-03-SC-01-05-0 6.28E+03 7.41 E+03 7.16E+03 9/12/2006 13:50:00 1117 1008 9530-03-SC-01-06-0 7.12E+03 8.32E+03 7.23E+03 9/12/2006 13:54:00 1117 1008

  • 9530-03-SC-01-07-0 7.22E+03 8.43E+03 7.67E+03 9/12/2006 13:59:00 1117 1008 9530-03-SC-01-08-0 8.11E+03 9.40E+03 8.35E+03 9/12/2006 14:04:00 1117 1008 9530-03-SC-01-09-0 7.49E+03 8.73E+03 7.06E+03 9/12/2006 14:09:00 1117 1008 9530-03-SC-01-10-0 7.94E+03 9.21 E+03 7.39E+03 9/12/2006 14:16:00 1117 1008 9530-03-SC-01-11-0 7.98E+03 9.26E+03 7.21E+03 9/12/2006 14:19:00 1117 1008 9530-03-SC-01-12-0 7.31 E+03 8.53E+03 7.51 E+03 9/12/2006 14:24:00 1117 1008 9530-0003 SCAN AREA 2 Background Action Level Results Above Sample Name Log Date Log Time E600 S/N Probe S/N (cpm) AL (C5M) 9530-03-SC-02-02 -0 7.67E+03 8.92E+03 8.64E+03 9/13/2006 13:03:00 1116 1006 9530-03-SC-02-02-0 7.65E+03 8.90E+03 7.95E+03 9/13/2006 13:07:00 1116 1006 9530-03-SC-02-03-0 7.82E+03 9.08E+03 7.34E+03 9/13/2006 13:12:00 1116 1006 9530-03-SC-02-04-0 7.55E+03 8.79E+03 8.41 E+03 9/13/2006 13:18:00 1116 1006 9530-03-SC-02-05-0 7.89E+03 9.16E+03 8.83E+03 9/13/2006 13:23:00 1116 1006 9530-03-SC-02-06-0 7.67E+03 8.92E+03 7.59E+03 9/13/2006 13:34:00 1116 1006 9530-03-SC-02-07-0 7.75E+03 9.01E+03 7.36E+03 9/13/2006 13:29:00 1116 1006 9530-03-SC-02-08-0 8.15E+03 9.44E+03 8.08E+03 9/13/2006 13:40:00 1116 1006 9530-03-SC-02-09-0 8.09E+03 9.37E+03 7.41 E+03 9/13/2006 13:43:00 1116 1006 9530-03-SC-02-1 0-0 7.94E+03 9.21 E+03 7.45E+03 9/13/2006 13:46:00 1116 1006 9530-03-SC 12-0 8.22E+03 9.51 E+03 7.06E+03 9/13/2006 1350:00 1116 1006 9530-03-SC-02-12-0 6.67E+03 7.84E+03 7.31E+03 9/13/2006 13:55:00 1116 1006 AL - Action Level

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD ATTACHMENT 3 (LABORATORY DATA)

General Narrative 1

CASE NARRATIVE For CONNECTICUT YANKEE RE: Soil PO# 002332 Work Order: 171772 SDG: MSR#06-1255 September 27, 2006 Laboratory Identification:

General Engineering Laboratories, LLC Mailing Address:

P.O. Box 30712 Charleston, South Carolina 29417 Express Mail Delivery and Shipping Address:

2040 Savage Road Charleston, South Carolina 29407 Telephone Number:

(843) 556-8171 Summary:

Sample receipt The sample(s) for this Project arrived at General Engineering Laboratories, LLC, (GEL) in Charleston, South Carolina on September 15, 2006. All sample containers arrived without any visible signs of tampering or breakage. The chain of custody contained the proper documentation and signatures.

The laboratory received the following sample(s):

Sample ID Client Sample ID 171772001 9530-0003-OO1F 171772002 9530-0003-002F 171772003 9530-0003-003F 171772004 9530-0003-004F 171772005 9530-0003-004FS 171772006 9530-0003-005F 171772007 9530-0003-006F 171772008 9530-0003-006FS 171772009 9530-0003-007F GENERAL. ENGINEERING LABORATORIES, LLC a Member of THE GEL GROUP,INC.,

RO. Box 30712 ° Charleston, SC 29417 ° 2040 Savage Road (29407)

Phone (843) 556-8171

  • Fax (843) 766-1178 ° www.gel.com

171772010 9530-0003-OOSF 171772011 9530-0003-009F 171772012 9530-0003-01OF 171772013 9530-0003-011 F 171772014 9530-0003-012F 171772015 9530-0003-013F 171772016 9530-0003-014F 171772017 9530-0003-015F 171772018 9530-0003-016F Items of Note:

There are no items of 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 listed below by analytical parameter.

Analytical Request:

Sixteen soil samples were analyzed for FSSGAM.

Two soil samples were analyzed for FSSALL.

Internal Chain of Custody:

Custody was maintained for the sample(s).

Data Package:

The enclosed data package contains the following sections: Case Narrative, Chain of Custody and Supporting Documentation and all analytical fractions.

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

  • Fax (843) 766-1178 . www.gel.com (37

List of current GEL Certifications as of 26 September 2006 State Certification Alaska UST-062 AZ0668 Arizona Arkansas 88-0651 -

CLIA 42D09O4046_

California 01151CA Colorado GenEngLabs Connecticut PH-0169 Dept. of Navy NFESC 413 EPA WG-15J Florida/NELAP E87 156 Georgia E8.7156,(Fl-NELA.P)

Hawaii N/A Idaho N/A Illinois 200029 Indiana C-SC-0I Kansas E-10332 Kentucky 90129 Louisiana 03046 Maryland 270 Massachusetts M-SC012 Michigan 9903 Nevada SCi2 New Jersey SCO02 New Mexico FL NELAP E87 156 New York 11501 North Carolina 233 North Carolina Drinking W 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania 68-00485 South Carolýna 10120001/j)585001/1 01200002 Tennessee 02934 Texas TX213-2006A Texas NELAP T 104704235-06-TX U.S. Dept. of Agriculture S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont

\t -gi 3-6 .... . .. -

Virginia 00151 Wahington C1641 4

Chain of Custody And Supporting Documentation 5

Health Physics Procedure GPP-GGGR-R5104-003 -Attachment B-CY-001 Major Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-00566 362 Injun Hollow Road, East Hampton, 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 C <

2040 Savage Road. Charleston SC. 29407 843 556 8171. Attn. Cheryl Jones Priority: [] 30 D. Z 14 D. 1 7 D. 13 D. C Container Sample Size-Time Media Type &Type Comment. Preservation Lab Sample ID Sample Designation Date Code Code Code 9530-0003-OO1F 9/12/06 1042 TS G BP X 9530-0003-002F 9/12/06 1047 TS G BP X 9530-0003-003F 9/12/06 1051 TS G BP X 9530-0003-004F 9/12/06 1101 TS G BP X 9530-0003-004FS 9/12/06 1101 TS G BP X 9530-0003-005F 9/12/06 1105 TS G BP X 9530-0003-006F 9/12/06 1105 TS G BP X 9530-0003-006FS 9/12/06 1105 TS G BP X 9530-0003-007F 9/12/06 1325 TS G BP X 11 Non QA Samples Shipped Via: Internal Container NOTES: PO #: 002332 MSR #: 06-12S.%' SSWP# NA E LTP QA [] Radwaste QA Temp.: 27 Deg.

Z Fed Ex RI UPS C 1] Hand Custody Sealed?

Y,,< N l

1) Relinquished B Date/Time 2) ' Date/Time Custody Seal El Other Intact?

Date/Time 4) Received By Date/Time Y, N E;

3) Relinquis Rill nfT .Vdlina;

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-001 Major Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-00567 362 Injun Hollow Road, East Hampton, 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 Priority: [] 30 D. Z 14 D. [: 7 D. [ 3 D. C Container Sample Size-Media Type &Type Comment, Preservation Lab Sample ID Sample Designation Date Time Code Code Code 9530-0003-008F 9/12/06 1343 TS G BP X 9530-0003-009F 9/12/06 1356 TS G BP X 9530-0003-OIOF 9/12/06 1121 TS G BP X 9530-0003-01 IF 9/12/06 1427 TS G BP X 9530-0003-012F 9/12/06 1440 TS G BP X 9530-0003-013F 9/12/06 1446 TS G BP X 9530-0003-014F 9/12/06 1457 TS G BP X 9530-0003-015F 9/12/06 1453 TS G BP X 9530-0003-016F 9/12/06 1505 TS G BP X Samples Shipped Via: Internal Container NOTES: PO #: 002332 MSR #: 06-/Zd'f SSWP# NA Z LTP QA 0 Radwaste QA IZ Non QA Z Fed Ex Temp.: Q_*Oeg.

FD UPS C ED Hand Custody'sealed?

Y, NV-

1) Relinquished By Date/ ime 2) ived By Date/Time Custody Seal E] Other Intact?
4) Received By Date/Time Y-Z N,'
3) Relinquishd By aDate/Time Bill of Lading //

Connecticut Yankee CY-ISC-SOW-001 Statement of Work for Analytical Lab Services Figure 1. Sample Check-in List Date/Time Received:_____________________________

SDG#: MI Work Order Number:

Shipping Container ID:. 1) t3 343 Chain of Custody# *,D. () S

1. Custody Seals or shipping container intact?.. Yes ( )No (]
2. Custody Seals dated and signed? Yes Noo [
3. Chain-of-Custody record present? Yes [ Not]
4. Cooler temperature
5. Vermiculite/packing materials is: Wet [ ]Dry 6.* Number of samples in shipping container:
7. Sample holding times exceeded? Yes [ ] No

.8. Samples have:

-)(-tape -- hazard labels custody seals _ appropriate sample labels

9. Samples are'

.4 in good condition leaking

____b roken * .have air bubbles

10. Were any anomalies identified in sample receipt? Yes []No 7

]I. .Description of anomalies (include sample numbers):

Sample Custodian/Laboratory:_ Date_

Telephoned to: On By

RADIOLOGICAL ANALYSIS 9

Radiochemistry Case Narrative Connecticut Yankee Atomic Power Co. (YANK)

Work Order 171772 Method/Analysis Information Product: Alphaspec 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: 569530 Prep Batch Number: 569079 Dry Soil Prep GL-RAD-A-021 Batch Number: 569078 Sample ID Client ID 171772015 9530-0003-013F 171772016 9530-0003-014F 1201185572 Method Blank (MB) 1201185573 171772015(9530-0003-013F) Sample Duplicate (DUP) 1201185574 171772015(9530-0003-013F) Matrix Spike (MS) 1201185575 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 1 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.

10

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: 171772015 (9530-0003-013F).

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 1201185572 (MB) 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 11

Product: Alphaspec Pu, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu- 11-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 569531 Prep Batch Number: 569079 Dry Soil Prep GL-RAD-A-021 Batch Number: 569078 Sample ID Client ID 171772015 9530-0003-013F 171772016 9530-0003-014F 1201185576 Method Blank (MB) 1201185577 171772015(9530-0003-013F) Sample Duplicate (DUP) 1201185578 171772015(9530-0003-013F) Matrix Spike (MS) 1201185579 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 11 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: 171772015 (9530-0003-013F).

QC Information All of the QC samples met the required acceptance limits.

12

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-I I-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 573310 Prep Batch Number: 569079 Dry Soil Prep GL-RAD-A-021 Batch Number: 569078 13

Sample ID Client ID 171772015 9530-0003-013F 171772016 9530-0003-014F 1201194062 Method Blank (MB) 1201194063 171772015(9530-0003-013F) Sample Duplicate (DUP) 1201194064 171772015(9530-0003-013F) Matrix Spike (MS) 1201194065 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 (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: 171772015 (9530-0003-013F).

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 were reprepped due to low/high carrier/tracer yield.

Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from 14

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: 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: 569469 Prep Batch Number: 569078 Sample ID Client ID 171772001 9530-0003-001F 171772002 9530-0003-002F 171772003 9530-0003-003F 171772004 9530-0003-004F 171772005 9530-0003-004FS 171772006 9530-0003-005F 171772007 9530-0003-006F 171772008 9530-0003-006FS 171772009 9530-0003-007F 171772010 9530-0003-008F 171772011 9530-0003-009F 171772012 9530-0003-01OF 171772013 9530-0003-01 IF 171772014 9530-0003-012F 171772015 9530-0003-013F 171772016 9530-0003-014F 171772017 9530-0003-015F 171772018 9530-0003-016F 1201185431 Method Blank (MB) 1201185432 171772001(9530-0003-001 F) Sample Duplicate (DUP) 1201185433 Laboratory Control Sample (LCS) 15

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# 12.

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: 171772001 (9530-0003-001F).

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 171772001 (9530-0003-001F), 171772004 (9530-0003-004F), 171772005 (9530-0003-004FS), 171772006 (9530-0003-005F), 171772016 (9530-0003-014F), 171772017 (9530-0003-015F) and 171772018 (9530-0003-016F) 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.

16

Oualifier information Qualifier Reason Analyte Sample UI Data rejected due to interference. Europium- 155 171772004 171772011 171772013 171772014 171772015 Manganese-54 171772011 UI Data rejected due to low abundance. Actinium-228 171772012 Bismuth-214 171772012 1201185431 Cesium- 134 171772005 171772006 171772008 171772009 171772010 171772011 171772013 171772014 171772015 171772017 1201185432 UI Data rejected due to no valid peak. Radium-226 1201185431 Method/Analysis Information 17

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: 569258 Prep Batch Number: 569079 Dry Soil Prep GL-RAD-A-021 Batch Number: 569078 Sample ID Client ID 171772015 9530-0003-013F 171772016 9530-0003-014F 1201184955 Method Blank (MB) 1201184956 171772015(9530-0003-013F) Sample Duplicate (DUP) 1201184957 171772015(9530-0003-013F) Matrix Spike (MS) 1201184958 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 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 volumes in this batch.

Designated QC The following sample was used for QC: 171772015 (9530-0003-013F).

QC Information All of the QC samples met the required acceptance limits.

18

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 The batch was recounted due to a high relative percent difference.

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: 569161 Sample ID Client ID 171772015 9530-0003-013F 171772016 9530-0003-014F 1201184719 Method Blank (MB) 1201184720 171772015(9530-0003-013F) Sample Duplicate (DUP) 1201184721 171772015(9530-0003-013F) Matrix Spike (MS) 1201184722 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 19

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.

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: 171772015 (9530-0003-013F).

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 171772016 (9530-0003-014F) 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.

Qualifier information Manual qualifiers were not required.

Method/Analysis Information 20

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: 569145 Prep Batch Number: 569079 Dry Soil Prep GL-RAD-A-021 Batch Number: 569078 Sample ID Client ID 171772015 9530-0003-013F 171772016 9530-0003-014F 1201184670 Method Blank (MB) 1201184671 171772016(9530-0003-014F) Sample Duplicate (DUP) 1201184672 171772016(9530-0003-014F) Matrix Spike (MS) 1201184673 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: 171772016 (9530-0003-014F).

QC Information All of the QC samples met the required acceptance limits.

21

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 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: 569146 Prep Batch Number: 569079 Dry Soil Prep GL-RAD-A-021 Batch Number: 569078 Sample ID Client ID 171772015 9530-0003-013F 171772016 9530-0003-014F 1201184674 Method Blank (MB) 1201184675 171772016(9530-0003-014F) Sample Duplicate (DUP) 1201184676 171772016(9530-0003-014F) Matrix Spike (MS) 1201184677 Laboratory Control Sample (LCS) 22

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.

Quality Control (Q0 Information:

Blank Information The blank volume is representative of the sample volume in this batch.

Designated QC The following sample was used for QC: 171772016 (9530-0003-014F).

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.

23

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: 569133 Sample ID Client ID 171772015 9530-0003-013F 171772016 9530-0003-014F 1201184634 Method Blank (MB) 1201184635 171772015(9530-0003-013F) Sample Duplicate (DUP) 1201184636 171772015(9530-0003-013F) Matrix Spike (MS) 1201184637 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.

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 volumes in this batch.

Designated QC The following sample was used for QC: 171772015 (9530-0003-013F).

QC Information All of the QC samples met the required acceptance limits.

24

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 1201184634 (MB), 1201184635 (9530-0003-013F), 171772015 (9530-0003-013F) and 171772016 (9530-0003-014F) 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 AlI,FSS Analytical Method: EPA EERF C-0l Modified Analytical Batch Number: 572496 Sample ID Client ID 171772015 9530-0003-013F 171772016 9530-0003-014F 1201192245 Method Blank (MB) 1201192246 171772015(9530-0003-013F) Sample Duplicate (DUP) 1201192247 171772015(9530-0003-013F) Matrix Spike (MS) 1201192248 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.

25

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 (Q0 Information:

Blank Information The blank volume is representative of the sample volume in this batch.

Designated QC The following sample was used for QC: 171772015 (9530-0003-013F).

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 171772015 (9530-0003-013F) and 171772016 (9530-0003-014F) were reprepped due to low/high recovery.

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.

Certification Statement 26

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: V ('Ql - LP ol 27

SAMPLE DATA

SUMMARY

28

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#06-1255 GEL Work Order: 171772 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.

UI 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 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 29

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-00IF Project: YANK01204 Sample ID: 171772001 Client ID: YANKOO Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 23.2%

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 1.00 +/-0.199 0.0629 +/-0.199 0.137 pCi/g MJHI 09/27/06 1300 569469 1 Americium-241 U 0.0354 +/-0.071 0.0622 +/-0.071 0.128 pCi/g Bismuth-212 0.465 +/-0.287 0.171 +/-0.287 0.364 pCi/g Bismuth-214 0.531 +/-0.104 0.039 +/-0.104 0.0826 pCi/g Cesium-134 U 0.0412 +/-0.0379 0.0245 +/-0.0379 0.0522 pCi/g Cesium-137 0.141 +/-0.0362 0.0203 +/-0.0362 0.0433 pCi/g Cobalt-60 U -3.370E- +/-0.0257 0.0216 +/-0.0257 0.0475 pCi/g 05 Europium- 152 H4-0.0776 U 0.0209 0.0593 +/-0.0776 0.124 pCi/g Europium- 154 U -0.0547 4-0.0796 0.0622 +/-0.0796 0.136 pCi/g Europium- 155 U 0.111 4-0.0802 0.0548 +/-0.0802 0.113 pCi/g Lead-212 0.766 4-0.0868 0.0316 +/-0.0868 0.0656 pCi/g Lead-214 -I4-0.0993 0.545 0.0441 +/-0.0993 0.0919 pCi/g Manganese-54 U -0.00902 H4-0.0261 0.0209 +/-0.0261 0.0447 pCi/g Niobium-94 U -0.00508 4-0.0217 0.0178 +/-0.0217 0.0379 pCi/g Potassium-40 15.0 +/-1.36 0.174 +/-1.36 0.391 pCi/g Radium-226 -I+/-0.104 0.531 0.039 +/-0.104 0.0826 pCi/g Silver-108m U -0.013 4/-0.0226 0.0186 +/-0.0226 0.0391 pCi/g Thallium-208 0.272 ,/-0.0562 0.0204 +/-0.0562 0.0432 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 LXM1 09/15/06 1530 569078 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 30

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-OOIF Project: YANK01204 Sample ID: 171772001 Vol. Recv.: YANK001 ClientID:

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

< 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 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.

31

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-002F Project: YANK01204 Sample ID: 171772002 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 18.4%

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 1.03 +/-0.262 0.0873 +/-0.262 0.202 pCi/g MJH 1 09/22/06 0822 569469 1 Americium-241 U -0.0227 4/-0.0503 0.0428 +/-0.0503 0.0894 pCi/g Bismuth-212 U 0.439 +/-0.549 0.231 +/-0.549 0.514 pCi/g Bismuth-214 0.764 +/-0.164 0.0574 +/-0.164 0.126 pCi/g Cesium-134 U 0.0205 1/-0.0567 0.0481 +/-0.0567 0.104 pCi/g Cesium-137 0.326 +/-0.0926 0.0323 +/-0.0926 0.0712 pCi/g Cobalt-60 U 0.00301 1/-0.0498 0.0418 +/-0.0498 0.0942 pCi/g Europium-152 U -0.0163 +/-0.0943 0.0803 +/-0.0943 0.172 pCi/g Europium-154 U -0.0746 +/-0.137 0.105 +/-0.137 0.238 pCi/g Europium-155 U 0.0756 1/-0.0874 0.0779 +/-0.0874 0.163 pCi/g Lead-212 0.766 -/-0.0981 0.0465 +/-0.0981 0.098 pCi/g Lead-214 0.550 +/-0.136 0.0605 +/-0.136 0.129 pCi/g Manganese-54 U 0.000407 4/-0.0544 0.0387 +/-0.0544 0.0845 pCi/g Niobium-94 U -0.00308 4/-0.0377 0.0308 +/-0.0377 0.0675 pCi/g Potassium-40 13.6 +/-1.64 0.297 +/-1.64 0.701 pCi/g Radium-226 0.764 +/-0.164 0.0574 +/-0.164 0.126 pCi/g Silver-108m U -0.0291 4/-0.0339 0.0265 +/-0.0339 0.0577 pCi/g Thallium-208 0.354 -/-0.0715 0.0337 +/-0.0715 0.0734 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 LXMI 09/15/06 1530 569078 The following Analytical Methods were performed Method Description I EEML 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 32

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-002F Project: YANK01204 Sample ID: 171772002 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 Sampleresults 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.

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-003F Project: YANKO01204 Sample ID: 171772003 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 34.2%

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 1.31 +/-0.294 0.113 +/-0.294 0.251 pCi/g MJH1 09/22/06 1007 569469 1 Americium-241 U 0.021 +/-0.0507 0.0443 +/-0.0507 0.0918 pCi/g Bismuth-212 U 0.503 +/-0.584 0.252 +/-0.584 0.549 pCi/g Bismuth-214 0.897 +/-0.148 0.0557 +/-0.148 0.121 pCi/g Cesium-134 U 0.0512 +/-0.0531 0.0402 +/-0.0531 0.0873 pCi/g Cesium-137 0.283 +/-0.0918 0.0304 +/-0.0918 0.0667 pCi/g Cobalt-60 U 0.00468 +/-0.0366 0.0308 +/-0.0366 0.0708 pCi/g Europium-152 U 0.0296 +/-0.0847 0.0742 +/-0.0847 0.159 pCi/g Europium-154 U -0.0443 +/-0.115 0.0888 +/-0.115 0.203 pCi/g Europium-155 U 0.0278 +/-0.0842 0.072 +/-0.0842 0.150 pCi/g Lead-212 1.19 +/-0.113 0.044 +/-0.113 0.0926 pCi/g Lead-214 0.952 +/-0.171 0.0549 +/-0.171 0.117 pCi/g Manganese-54 U -0.00228 +/-0.0362 0.0306 +/-0.0362 0.0674 pCi/g Niobium-94 U 0.00389 +/-0.0366 0.0302 +/-0.0366 0.0656 pCi/g Potassium-40 15.9 +/-1.64 0.363 +/-1 .64 0.819 pCi/g Radium-226 0.897 +/-0.148 0.0557 +/-0.148 0.121 pCi/g Silver-108m U 0.0254 +/-0.0316 0.0285 +/-0.0316 0.061 pCi/g Thallium-208 0.368 +/-0.0746 0.032 +/-0.0746 0.0693 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 LXM1 09/15/06 1530 569078 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 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-003F Proiect: YANK01204 Sample ID: 171772003 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.

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-004F Project: YANKO 1204 Sample ID: 171772004 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 37.3%

Parameter Qualifier Result U]ncertainty 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 1.56 +/-0.297 0.0845 +/-0.297 0.182 pCi/g MJH1 09/27/06 1301 569469 1 Americium-241 U -0.0256 +/-0.0908 0.069 +/-0.0908 0.143 pCi/g Bismuth-212 U 0.268 +/-0.418 0.198 +/-0.418 0.421 pCi/g Bismuth-214 0.861 +/-0.159 0.0437 +/-0.159 0.0927 pCi/g Cesium-134 U 0.0649 +/-0.0451 0.0333 +/-0.0451 0.0703 pCi/g Cesium- 137 0.309 +/-0.0611 0.0277 +/-0.0611 0.0584 pCi/g Cobalt-60 U 0.0236 +/-0.0351 0.0311 +/-0.0351 0.0672 pCi/g Europium-152 U 0.0479 +/-0.0748 0.062 +/-0.0748 0.130 pCi/g Europium-154 U -0.0644 +/-0.0904 0.0698 +/-0.0904 0.153 pCi/g Europium-155 UI 0.00 +/-0.119 0.0567 +/-0.119 0.118 pCi/g Lead-212 1.52 +/-0.149 0.0314 +/-0.149 0.0655 pCi/g Lead-214 1.23 +/-0.171 0.0399 +/-0.171 0.084 pCi/g Manganese-54 U 0.0389 +/-0.0359 0.0222 +/-0.0359 0.0478 pCi/g Niobium-94 U 0.0259 +/-0.0273 0.0239 +/-0.0273 0.0507 pCi/g Potassium-40 24.4 +/-2.08 0.200 +/-2.08 0.450 pCi/g Radium-226 0.861 +/-0.159 0.0437 +/-0.159 0.0927 pCi/g Silver-108m U -0.0186 -+/-0.0269 0.0201 +/-0.0269 0.0425 pCi/g Thallium-208 0.427 +/-0.0809 0.0237 +/-0.0809 0.0503 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 LXM1 09/15/06 1530 569078 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 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-004F Project: YANK01204 Sample ID: 171772004 Client ID: YANKO0I 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.

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 Report Date: October 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-004FS Project: YANK01204 Sample ID: 171772005 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 37.6%

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 1.57 +/-0.318 0.0851 +/-0.318 0.183 pCi/g MJH1 09/27/06 1301 569469 1 Americium-241 U -0.0262 +/-0.0823 0.066 +/-0.0823 0.136 pCi/g Bismuth-212 0.919 +/-0.411 0.265 +/-0.411 0.554 pCi/g Bismuth-214 0.951 +/-0.164 0.0557 +/-0.164 0.117 pCi/g Cesium-134 UI 0.00 +/-0.0814 0.037 +/-0.0814 0.0777 pCi/g Cesium-137 0.311 +/-0.0725 0.0271 +/-0.0725 0.0573 pCi/g Cobalt-60 U 0.00424 +/-0.0302 0.0224 +/-0.0302 0.0497 pCi/g Europium-152 U -0.0525 +/-0.0822 0.0667 +/-0.0822 0.139 pCi/g Europium-154 U 0.0495 +/-0.0944 0.0828 +/-0.0944 0.179 pCi/g Europium-155 U 0.065 +/-0.119 0.0698 +/-0.119 0.144 pCi/g Lead-212 1.50 +/-0.155 0.0389 +/-0.155 0.0804 pCi/g Lead-214 1.17 +/-0.167 0.0497 +/-0.167 0.104 pCi/g Manganese-54 U -0.0192 +/-0.0341 0.0263 +/-0.0341 0.0559 pCi/g Niobium-94 U 0.0174 +/-0.0312 0.0263 +/-0.0312 0.0553 pCi/g Potassium-40 24.9 +/-1.99 0.248 +/-1.99 0.545 pCi/g Radium-226 0.951 +/-0.164 0.0557 +/-0.164 0.117 pCi/g Silver-108m U 0.00734 +/-0.0374 0.0242 +/-0.0374 0.0506 pCi/g Thallium-208 0.467 +/-0.0801 0.0245 +/-0.0801 0.0519 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 LXM1 09/15/06 1530 569078 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 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-004FS Project: YANK01204 Sample ID: 171772005 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.

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: October 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-005F Proiect: YANKO 1204 Sample ID: 171772006 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 41.2%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.56 +/-0.344 0.121 +/-0.344 0.243 pCi/g MJHI 09/27/06 1317 569469 1 Americium-241 U 0.0225 +/-0.0546 0.0382 +/-0.0546 0.0763 pCi/g Bismuth-212 1.13 +/-0.510 0.292 +1-0.510 0.584 pCi/g Bismuth-214 1.11 +/-0.190 0.0575 +/-0.190 0.115 pCi/g Cesium- 134 UI 0.00 +/-0.0901 0.043 +/-0.0901 0.0859 pCi/g Cesium-137 0.487 +/-0.0973 0.0325 +/-0.0973 0.0649 pCi/g Cobalt-60 U -0.07 +/-0.0493 0.0344 +/-0.0493 0.0687 pCi/g Europium- 152 U -0.00677 +/-0.114 0.0754 +/-0.114 0.151 pCi/g Europium- 154 U -0.0501 +/-0.141 0.111 +/-0.141 0.222 pCi/g Europium- 155 U 0.021 +/-0.0931 0.0616 +/-0.0931 0.123 pCi/g Lead-212 1.56 +/-0.165 0.0393 +/-0.165 0.0785 pCi/g Lead-214 1.07 +/-0.167 0.0536 +/-0.167 0.107 pCi/g Manganese-54 U 0.0454 +/-0.0403 0.0344 +I-0.0403 0.0687 pCi/g Niobium-94 U 0.00204 +/-0.0377 0.0314 +I-0.0377 0.0628 pCi/g Potassium-40 25.7 +/-1.72 0.263 +/-1.72 0.525 pCi/g Radium-226 1.11 +/-0.190 0.0575 +1-0.190 0.115 pCi/g Silver-108m U -0.0102 +/-0.0381 0.0261 +/-0.0381 0.0521 pCilg Thallium-208 0.586 +/-0.0997 0.0312 +/-0.0997 0.0623 pCilg The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM1 09/15/06 1530 569078 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 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-005F Project: YANK01204 Sample ID: 171772006 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 Sampleresults 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.

41

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-006F Proiect: YANK01204 Sample ID: 171772007 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 6.63%

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 0.494 +/-0.0975 0.0418 +/-0.0975 0.0887 pCi/g MJHl 09/22/06 1825 569469 1 Americium-241 U 0.0088 +/-0.0174 0.0167 +/-0.0174 0.0341 pCi/g Bismuth-212 0.258 +/-0.188 0.095 +/-0.188 0.200 pCi/g Bismuth-214 0.413 +/-0.0516 0.0231 +/-0.0516 0.0483 pCi/g Cesium- 134 U 0.0291 +/-0.0242 0.016 +/-0.0242 0.0334 pCi/g Cesium- 137 0.0957 +/-0.0327 0.0123 +/-0.0327 0.0258 pCi/g Cobalt-60 U 0.00364 +/-0.0147 0.0126 +/-0.0147 0.0272 pCi/g Europium- 152 U -0.0176 +/-0.0326 0.0286 +/-0.0326 0.0595 pCi/g Europium- 154 U-0.000325 +/-0.0451 0.0381 +/-0.0451 0.0815 pCi/g Europium- 155 U 0.022 +/-0.0444 0.0283 +/-0.0444 0.0581 pCi/g Lead-212 0.485 +/-0.0377 0.0165 +/-0.0377 0.0341 pCi/g Lead-214 0.395 +/-0.052 0.0214 +/-0.052 0.0444 pCi/g Manganese-54 U 0.0144 +/-0.0201 0.0112 +/-0.0201 0.0238 pCi/g Niobium-94 U 0.0119 +/-0.0131 0.0117 +/-0.0131 0.0246 pCi/g Potassium-40 11.1 +/-0.634 0.127 +/-0.634 0.273 pCi/g Radium-226 0.413 +/-0.0516 0.0231 +/-0.0516 0.0483 pCi/g Silver-108m U 0.00401 +/-0.0118 0.0106 +/-0.0118 0.0221 pCi/g Thallium-208 0.148 +/-0.0308 0.0119 +/-0.0308 0.0249 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 LXM1 09/15/06 1530 569078 The following Analytical Methods were performed Method Description 1 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 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: October 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-006F Project: YANK01204 Sample ID: 171772007 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.

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-006FS Proiect: YANK01204 Sample ID: 171772008 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 6.72%

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 0.502 +/-0.139 0.0497 +/-0.139 0.105 pCi/g MJHI 09/22/06 1826 569469 1 Americium-241 U 0.00606 +/-0.0222 0.0202 +/-0.0222 0.0413 pCi/g Bismuth-212 U 0.145 +/-0.218 0.126 +/-0.218 0.261 pCi/g Bismuth-214 0.339 +/-0.0713 0.0283 +/-0.0713 0.0587 pCi/g Cesium-134 UL 0.00 +/-0.0256 0.0179 +/-0.0256 0.0373 pCi/g Cesium-137 0.0947 +/-0.0286 0.0163 +/-0.0286 0.034 pCi/g Cobalt-60 U-0.000735 +/-0.0182 0.0153 +/-0.0182 0.0325 pCi/g Europium-152 U -0.0201 +/-0.040 0.0336 +/-0.040 0.0696 pCi/g Europium- 154 U 0.0304 +/-0.0526 0.0463 +/-0.0526 0.0978 pCi/g Europium- 155 U 0.0246 +/-0.0362 0.032 +/-0.0362 0.0655 pCi/g Lead-212 0.370 +/-0.0478 0.0244 +/-0.0478 0.0498 pCi/g Lead-214 0.375 +/-0.0679 0.0249 +/-0.0679 0.0516 pCi/g Manganese-54 U -0.0152 +/-0.0184 0.0147 +/-0.0184 0.0307 pCi/g Niobium-94 U 0.0172 +/-0.0169 0.0152 +/-0.0169 0.0314 pCi/g Potassium-40 11.2 +/-0.641 0.129 +/-0.641 0.277 pCi/g Radium-226 0.339 +/-0.0713 0.0283 +/-0.0713 0.0587 pCi/g Silver-108m U 0.00459 +/-0.0137 0.0126 +/-0.0137 0.026 pCi/g Thallium-208 0.161 +/-0.0404 0.0142 +1-0.0404 0.0296 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 LXM1 09/15/06 1530 569078 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 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-006FS Project: YANK01204 Sample ID: 171772008 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.

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 East Hampton, Connecticut 06424 Report Date: October 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-007F Project: YANKO01204 Sample ID: 171772009 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 4.71%

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 0.520 +/-0.0844 0.0294 +/-0.0844 0.0617 pCi/g MJHI 09/22/06 1826 569469 1 Americium-241 U 0.00503 +/-0.0573 0.0503 +/-0.0573 0.103 pCi/g Bismuth-212 0.227 +/-0.116 0.0668 +/-0.116 0.139 pCi/g Bismuth-214 0.362 +/-0.0532 0.0165 +/-0.0532 0.0343 pCi/g Cesium-134 UI 0.00 +/-0.0174 0.011 +/-0.0174 0.0228 pCi/g Cesium-137 0.057 +/-0.0155 0.00945 +/-0.0155 0.0196 pCi/g Cobalt-60 U 0.00905 +/-0.0181 0.00995 +/-0.0181 0.021 pCi/g Europium-152 U 0.000663 +/-0.0254 0.0229 +/-0.0254 0.0474 pCi/g Europium-154 U -0.0346 +/-0.0308 0.0247 +/-0.0308 0.0525 pCi/g Europium-155 U 0.028 +/-0.0314 0.0299 +/-0.0314 0.0613 pCi/g Lead-212 0.502 +/-0.0311 0.0138 +/-0.0311 0.0283 pCi/g Lead-214 0.402 +/-0.044 0.0154 +1-0.044 0.032 pCi/g Manganese-54 U 0.0139 +/-0.0119 0.00783 +/-0.0119 0.0164 pCi/g Niobium-94 U 0.00226 +/-0.00891 0.00799 +/-0.00891 0.0166 pCi/g Potassium-40 12.5 +/-0.500 0.0834 +/-0.500 0.178 pCi/g Radium-226 0.362 +/-0.0532 0.0165 +/-0.0532 0.0343 pCi/g Silver-108m U-0.000607 +/-0.00859 0.00756 +/-0.00859 0.0157 pCi/g Thallium-208 0.143 +/-0.0256 0.00795 +/-0.0256 0.0166 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 LXM1 09/15/06 1530 569078 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 46

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-007F Proiect: YANK01204 Sample ID: 171772009 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.

47

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis w i Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-008F Proiect: YANK01204 Sample ID: 171772010 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 35.6%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.28 +/-0.150 0.0465 +/-0.150 0.0976 pCi/g MJH1 09/22/06 1827 569469 1 Americium-241 U -0.0448 +/-0.0654 0.0538 +/-0.0654 0.110 pCi/g Bismuth-212 0.865 +/-0.244 0.0967 +/-0.244 0.203 pCi/g Bismuth-214 0.777 +/-0.0788 0.0291 +/-0.0788 0.0603 pCi/g Cesium-134 UI 0.00 +/-0.0281 0.0182 +/-0.0281 0.0377 pCi/g Cesium-137 0.289 +/-0.0386 0.0138 +/-0.0386 0.0288 pCi/g Cobalt-60 U-0.000164 +/-0.018 0.0146 +/-0.018 0.0309 pCi/g Europium-152 U 0.00156 +/-0.0443 0.0371 +/-0.0443 0.0766 pCi/g Europium-154 U -0.0147 +/-0.0539 0.0431 +/-0.0539 0.0909 pCi/g Europium-155 U 0.0509 +/-0.0547 0.0461 +/-0.0547 0.0941 pCi/g Lead-212 1.28 +/-0.0639 0.0213 +/-0.0639 0.0437 pCi/g Lead-214 0.900 +/-0.0761 0.0255 +/-0.0761 0.0526 pCi/g Manganese-54 U 0.0205 +/-0.0208 0.014 +/-0.0208 0.0292 pCi/g Niobium-94 U 0.00113 +/-0.0161 0.0137 +/-0.0161 0.0284 pCi/g Potassium-40 20.1 +/-0.774 0.107 +/-0.774 0.232 pCi/g Radium-226 0.777 +/-0.0788 0.0291 +/-0.0788 0.0603 pCi/g Silver-108m U 0.00182 +/-0.0152 0.0126 +/-0.0152 0.0262 pCi/g Thallium-208 0.348 +/-0.0449 0.0142 +/-0.0449 0.0296 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 LXM1 09/15/06 1530 569078 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 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-008F Project: YANK01204 Sample ID: 171772010 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.

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-009F Project: YANK01204 Sample ID: 171772011 Client ID: YANKOO Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 42.4%

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 1.30 +/-0.331 0.113 +/-0.331 0.225 pCi/g MJHI 09/22/06 1840 569469 1 Americium-241 U 0.0636 +/-0.0573 0.0383 +/-0.0573 0.0766 pCi/g Bismuth-212 1.01 +/-0.483 0.248 +/-0.483 0.496 pCi/g Bismuth-214 0.983 +/-0.161 0.0595 +/-0.161 0.119 pCi/g Cesium-134 UI 0.00 +/-0.0632 0.0414 +/-0.0632 0.0827 pCi/g Cesium-137 0.395 +/-0.0783 0.0364 +/-0.0783 0.0727 pCi/g Cobalt-60 U -0.0288 +/-0.0476 0.0364 +/-0.0476 0.0728 pCi/g Europium-152 U 0.0338 +/-0.125 0.071 +/-0.125 0.142 pCi/g Europium-154 U -0.0177 +/-0.146 0.118 +/-0.146 0.235 pCi/g Europium-155 Ul 0.00 +/-0.105 0.0581 +/-0.105 0.116 pCi/g Lead-212 1.50 +/-0.157 0.0355 +/-0.157 0.071 pCi/g Lead-214 1.19 +/-0.171 0.0509 +/-0.171 0.102 pCi/g Manganese-54 Ul 0.00 +/-0.051 0.0333 +/-0.051 0.0665 pCi/g Niobium-94 U 0.00922 +/-0.035 0.0295 +/-0.035 0.059 pCi/g Potassium-40 25.6 +/-1.73 0.337 +/-1.73 0.674 pCi/g Radium-226 0.983 +/-0.161 0.0595 +/-0.161 0.119 pCi/g Silver-108m U -0.0361 +/-0.0342 0.0261 +/-0.0342 0.0522 pCi/g Thallium-208 0.539 +/-0.094 0.0272 +/-0.094 0.0544 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 LXMI 09/15/06 1530 569078 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 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-009F Project: YANKO 1204 SamplelD: 171772011 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.

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-010F Project: YANKO 1204 Sample ID: 171772012 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 29.3%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 UI 0.00 +/-0.347 0.283 +/-0.347 0.566 pCi/g MJHI 09/23/06 1423 569469 1 Americium-241 U 0.00686 +/-0.0668 0.0489 +/-0.0668 0.0977 pCi/g Bismuth-212 1.42 +/-0.702 0.287 +/-0.702 0.574 pCi/g Bismuth-214 UI 0.00 +/-0.214 0.159 +/-0.214 0.318 pCi/g Cesium-134 U 0.0404 +/-0.0542 0.0493 +/-0.0542 0.0986 pCi/g Cesium-137 0.287 +/-0.0826 0.0417 +/-0.0826 0.0833 pCi/g Cobalt-60 U 0.046 +/-0.0581 0.0535 +/-0.0581 0.107 pCi/g Europium-152 U -0.0499 +/-0.134 0.0932 +/-0.134 0.186 pCi/g Europium-154 U -0.0079 +/-0.148 0.120 +/-0.148 0.240 pCi/g Europium-155 U 0.131 +/-0.097 0.0834 +/-0.097 0.167 pCi/g Lead-212 1.10 +/-0.154 0.0488 +/-0.154 0.0975 pCi/g Lead-214 0.695 +/-0.164 0.0713 +/-0.164 0.143 pCi/g Manganese-54 U -0.0231 +/-0.0515 0.0411 +/-0.0515 0.0821 pCi/g Niobium-94 U 0.00586 +/-0.0455 0.0391 +/-0.0455 0.0781 pCi/g Potassium-40 16.3 +/-1.90 0.153 +/-1.90 0.307 pCi/g Radium-226 0.759 +/-0.214 0.0701 +/-0.214 0.140 pCi/g Silver-108m U 0.00115 +/-0.0381 0.0316 +/-0.0381 0.0631 pCi/g Thallium-208 0.338 +/-0.099 0.0335 +/-0.099 0.0671 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 LXM1 09/15/06 1530 569078 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 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-OIOF Project: YANK01204 Sample ID: 171772012 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.

53

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-01IF Project: YANK01204 Sample ID: 171772013 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 30.7%

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 0.998 +/-0.109 0.0362 +/-0.109 0.075 pCi/g MJHI 09/24/06 1114 569469 1 Americium-241 U 0.00879 +/-0.0156 0.0137 +/-0.0156 0.0278 pCi/g Bismuth-212 0.604 +/-0.161 0.081 +/-0.161 0.167 pCi/g Bismuth-214 0.753 +/-0.0574 0.0187 +/-0.0574 0.0384 pCi/g Cesium- 134 UI 0.00 +/-0.0203 0.0139 +/-0.0203 0.0284 pCi/g Cesium-137 0.227 +/-0.0234 0.0109 +/-0.0234 0.0224 pCi/g Cobalt-60 U 0.0132 +/-0.0129 0.0112 +/-0.0129 0.0235 pCi/g Europium- 152 U 0.017 +/-0.0372 0.0255 +/-0.0372 0.0522 pCi/g Europium-154 U-0.000298 +/-0.0406 0.0336 +/-0.0406 0.070 pCi/g Europium-155 UI 0.00 +/-0.0401 0.0222 +/-0.0401 0.0451 pCi/g Lead-212 1.02 +/-0.0372 0.0138 +/-0.0372 0.0282 pCi/g Lead-214 0.705 +/-0.0587 0.0191 +/-0.0587 0.0389 pCi/g Manganese-54 U 0.017 +/-0.0151 0.0102 +/-0.0151 0.021 pCi/g Niobium-94 U 0.0012 +/-0.0121 0.00999 +/-0.0121 0.0206 pCi/g Potassium-40 15.0 +/-0.553 0.0885 +/-0.553 0.187 pCi/g Radium-226 0.753 +/-0.0574 0.0187 +/-0.0574 0.0384 pCi/g Silver-108m U -0.00615 +/-0.0106 0.00879 +/-0.0106 0.018 pCi/g Thallium-208 0.351 +/-0.031 0.00992 +/-0.031 0.0204 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 LXM1 09/15/06 1530 569078 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 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 Hampton, Connecticut 06424 Report Date: October 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-01IF Project: YANK01204 Sample ID: 171772013 Client ID: YANKOO 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.

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-012F Project: YANK01204 Sample ID: 171772014 Client ID: YANKO01 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 36.1%

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 1.20 +/-0.0875 0.0271 +/-0.0875 0.0559 pCi/g MJH1 09/24/06 1115 569469 1 Americium-241 U -0.0412 +/-0.0648 0.0464 +/-0.0648 0.0941 pCi/g Bismuth-212 0.890 +/-0.151 0.0606 +/-0.151 0.124 pCi/g Bismuth-214 0.711 +/-0.0555 0.0157 +/-0.0555 0.0322 pCi/g Cesium-134 UI 0.00 +/-0.0212 0.011 +/-0.0212 0.0226 pCi/g Cesium- 137 0.319 +/-0.023 0.00845 +/-0.023 0.0173 pCi/g

,Cobalt-60 U 0.00637 +/-0.0102 0.00884 +/-0.0102 0.0183 pCi/g Europium-152 U -0.0168 +/-0.0261 0.0219 +/-0.0261 0.0447 pCi/g Europium-154 U 0.00798 +/-0.032 0.0274 +/-0.032 0.0564 pCi/g Europium-155 UI 0.00 +/-0.0498 0.0267 +/-0.0498 0.0541 pCi/g Lead-212 1.25 +/-0.0367 0.0125 +/-0.0367 0.0254 pCi/g Lead-214 0.929 +/-0.0476 0.0151 +/-0.0476 0.0309 pCi/g Manganese-54 U 0.0167 +/-0.0186 0.00858 +/-0.0186 0.0176 pCi/g Niobium-94 U 0.0108 +/-0.00913 0.00802 +/-0.00913 0.0164 pCi/g Potassium-40 20.9 +/-0.498 0.0695 +/-0.498 0.145 pCi/g Radium-226 0.711 +/-0.0555 0.0157 +/-0.0555 0.0322 pCi/g Silver-108m U 0.00453 +/-0.0088 0.00748 +/-0.0088 0.0153 pCi/g Thallium-208 0.392 +/-0.0288 0.00773 +/-0.0288 0.0158 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 LXM1 09/15/06 1530 569078 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-012F Project: YANK01204 Sample ID: 171772014 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-013F Project: YANK01204 Sample ID: 171772015 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 26.7%

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-0.000541 +/-0.129 0.109 +/-0.129 0.309 pCi/g BXLI 09/28/06 0936 569530 1 Curium-242 U --0.0173 +/-0.0747 0.0458 +/-0.0747 0.189 pCi/g Curium-243/244 U --0.0175 +/-0.166 0.145 +/-0.166

  • 0.381 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 0.025 +/-0.0663 0.0295 +/-0.0664 0.148 pCi/g BXL1 09/28/06 0936 569531 2 Plutonium-239/240 -0.0158 k/-0.0681 0.0417 +/-0.0681 0.173 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U 4.46 +/-9.11 7.45 +/-9.12 15.6 pCi/g DDR1 10/03/06 0858 573310 3 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.662 +/-0.0686 0.0211 +/-0.0686 0.0434 pCi/g MJHI 09/24/06 1116 569469 5 Americium-241 U -0.0011 +/-0.0272 0.0243 +/-0.0272 0.0492 pCi/g Bismuth-212 0.508 +/-0.110 0.0431 +/-0.110 0.0887 pCi/g Bismuth-214 0.426 +/-0.038 0.0118 +/-0.038 0.0241 pCi/g Cesium- 134 UI 0.00 +/-0.0148 0.00811 +/-0.0148 0.0166 pCi/g Cesium-137 0.227 4/-0.0165 0.00603 +/-0.0165 0.0124 pCi/g Cobalt-60 U 0.00368 +J/-0.00741 0.00623 +/-0.00741 0.0129 pCi/g Europium-152 U 0.0101 +/-0.019 0.0166 +/-0.019 0.0339 pCi/g Europium-154 U -0.0158 4/-0.0224 0.0179 +/-0.0224 0.0371 pCi/g Europium-155 UI 0.00 4-0.0301 0.0191 +/-0.0301 0.0387 pCi/g Lead-212 0.666 -4/-0.0279 0.00939 +/-0.0279 0.0191 pCi/g Lead-214 0.469 +/-0.0353 0.0114 +/-0.0353 0.0233 pCi/g Manganese-54 U 0.00388 4/-0.0109 0.00589 +/-0.0109 0.0121 pCi/g Niobium-94 U 0.00201 +//-0.00644 0.00564 +/-0.00644 0.0116 pCi/g Potassium-40 14.9 +/-0.376 0.0472 +/-0.376 0.0988 pCi/g Radium-226 0.426 +/-0.038 0.0118 +/-0.038 0.0241 pCi/g Silver-108m U 0.0103 +//-0.00632 0.00562 +/-0.00632 0.0115 pCi/g Thallium-208 0.208 4/-0.0193 0.00584 +/-0.0193 0.012 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.007 +/-0.0247 0.0203 +/-0.0247 0.0435 pCi/g KSDI 09/28/06 1949 569258 6 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid-HTD2,ALL FSS Tritium U -6.64 +/-7.74 6.87 +/-7.74 14.6 pCi/g ATH2 09/28/06 1001 569133 8 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-013F Project: YANK01204 Sample ID: 171772015 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis Liquid Scint C14, Solid All, FSS Carbon-14 U -0.0273 +/-0.0774 0.0653 +/-0.0774 0.133 pCi/g AXD2 09/28/06 0325 572496 10 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U -1.57 +/-37.6 26.6 +/-37.6 55.7 pCi/g MXP1 09/22/06 0523 569145 12 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U 1.66 +/-7.81 6.51 +/-7.81 13.4 pCi/g MXPI 09/24/06 1912 569146 13 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.189 +/-0.275 0.226 +/-0.275 0.466 pCi/g KXRI 09/24/06 1525 569161 14 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM1 09/15/06 1530 569078 The following Analytical Methods were performed Method Description 1 DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu- I1-RC Modified 3 DOE EML HASL-300, Pu- I1-RC Modified 4 DOE EML HASL-300, Pu-lI -RC Modified 5 EML HASL 300, 4.5.2.3 6 EPA 905.0 Modified 7 EPA 905.0 Modified 8 EPA 906.0 Modified 9 EPA 906.0 Modified 10 EPA EERF C-01 Modified 11 EPA EERF C-01 Modified 12 DOE RESL Fe-I, Modified 13 DOE RESL Ni-I, Modified 14 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery % Acceptable Limits Americium-243 Alphaspec Am241, Cm, Solid ALL 80 (15%-125%)

Plutonium-242 Alphaspec Pu, Solid-ALL FSS 76 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Pu241, Solid-ALL FS 74 (25%-125%)

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-013F Project: YANK01204 Sample ID: 171772015 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 68 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Fe55, Solid-ALL FS 59 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 59 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 77 (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 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.

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-014F Project: YANK01204 Sample ID: 171772016 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 5.75%

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 0.0692 +/-0.210 0.145 +/-0.210. 0.435 pCi/g BXL1 09/28/06 0936 569530 1 Curium-242 U -0.0115 +/-0.128 0.116 +/-0.128 0.388 pCi/g Curium-243/244 U -7.700E- +/-0.288 0.242 +/-0.288 0.629 pCi/g 08 Alphaspec Pu, Solid-ALL FSS Plutonium-238 -0.024 +/-0.0706 0.0517 +/-0.0706 0.194 pCi/g BXL1 09/28/06 0936 569531 2 Plutonium-239/240 0.0173 +/-0.0688 0.0422 +/-0.0689 0.175 pCi/g Liquid Scint Pu241, Solid-ALL FSS

'Plutonium-241 U 6.00 +/-8.55 6.91 +/-8.57 14.5 pCi/g DDR1 10/03/06 0914 573310 3 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.539 +/-0.137 0.0394 +/-0.137 0.0849 pCi/g MJHI 09/27/06 1441 569469 5 Americium-241 U 0.00129 +/-0.0906 0.0797 +/-0.0906 0.164 pCi/g Bismuth-212 0.548 +/-0.272 0.0956 +/-0.272 0.203 pCi/g Bismuth-214 0.343 +/-0.0725 0.0246 +/-0.0725 0.0518 pCi/g Cesium- 134 U 0.0246 +/-0.025 0.0154 +/-0.025 0.0325 pCi/g Cesium-137 0.117 +/-0.0278 0.0139 +/-0.0278 0.0293 pCi/g Cobalt-60 U 0.00944 +/-0.0153 0.0136 +/-0.0153 0.0297 pCi/g Europium-152 U -0.0402 +/-0.0415 0.0341 +/-0.0415 0.0711 pCi/g Europium-154 U -0.0221 +/-0.0507 0.0405 +/-0.0507 0.0875 pCi/g Europium-155 U 0.0604 +/-0.0627 0.0369 +/-0.0627 0.076 pCi/g Lead-212 0.483 +/-0.0587 0.020 +/-0.0587 0.0413 pCi/g Lead-214 0.368 +/-0.069 0.0255 +/-0.069 0.053 pCi/g Manganese-54 U -0.00496 +/-0.0156 0.0132 +/-0.0156 0.0279 pCi/g Niobium-94 U 0.0025 +/-0.0143 0.0126 +/-0.0143 0.0266 pCi/g Potassium-40 12.5 +/-1 .07 0.108 +/-1.07 0.240 pCi/g Radium-226 0.343 +/-0.0725 0.0246 +/-0.0725 0.0518 pCi/g Silver-108m U -0.00682 +/-0.0134 0.0111 +/-0.0134 0.0233 pCi/g Thallium-208 0.146 +/-0.0396 0.0119 +/-0.0396 0.0252 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U -0.00463 +/-0.0223 0.019 +/-0.0223 0.0409 pCi/g KSD1 09/28/06 1949 569258 6 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid-HTD2,ALL FSS 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-014F Proiect: YANK01204 Sample ID: 171772016 Client ID: YANK001 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 -6.8 +/-7.52 6.59 +/-7.52 13.8 pCilg ATH2 09/28/06 1448 569133 8 Liquid Scint C14, Solid AII,FSS Carbon-14 U 0.0 +/-0.0795 0.0667 +/-0.0795 0.136 pCilg AXD2 09/28/06 0622 572496 11 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U 12.3 +/-36.0 24.7 +/-36.0 51.5 pCilg MXPI 09/22/06 0540 569145 13 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U 0.0779 +/-5.27 4.42 +/-5.27 9.09 pCilg MXP1 09/24/06 1959 569146 14 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U ().274 +/-0.247 0.200 +/-0.247 0.412 pCi/g KXR1 09/26/06 1832 569161 15 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXMI 09/15/06 1530 569078 The following Analytical Methods were performed Method Description 1 DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu- 11-RC Modified 3 DOE EML HASL-300, Pu-I 1-RC Modified 4 DOE EML HASL-300, Pu- 11-RC Modified 5 EML HASL 300, 4.5.2.3 6 EPA 905.0 Modified 7 EPA 905.0 Modified 8 EPA 906.0 Modified 9 EPA 906.0 Modified 10 EPA 906.0 Modified 11 EPA EERF C-01 Modified 12 EPA EERF C-0 1 Modified 13 DOE RESL Fe-1, Modified 14 DOE RESL Ni-I, Modified 15 DOE EML HASL-300, Tc-02-RC Modified 16 DOE EML HASL-300, Tc-02-RC Modified 62

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-014F Project: YANK01204 Sample ID: 171772016 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Surrogate/Tracer recovery Test Recovery % Acceptable Limits Americium-243 Alphaspec Am241, Cm, Solid ALL 55 (15%-125%)

Plutonium-242 Alphaspec Pu, Solid-ALL FSS 73 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Pu241, Solid-ALL Fý 77 (25%-125%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 72 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Fe55, Solid-ALL FS 71 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 78 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 72 (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 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-015F Project: YANK01204 Sample ID: 171772017 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 22.4%

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 0.776 +/-0.196 0.0691 +/-0.196 0.138 pCi/g MJH1 09/27/06 1456 569469 1 Americium-241 U 0.00596 +/-0.0776 0.0566 +/-0.0776 0.113 pCi/g Bismuth-212 0.599 +/-0.231 0.155 +/-0.231 0.309 pCi/g Bismuth-214 0.560 +/-0.0913 0.0332 +/-0.0913 0.0663 pCi/g Cesium- 134 UI 0.00 +/-0.0275 0.0232 +/-0.0275 0.0463 pCi/g Cesium-137 0.163 +/-0.0363 0.0181 +/-0.0363 0.0361 pCi/g Cobalt-60 U 0.00301 +/-0.0242 0.0201 +/-0.0242 0.0402 pCi/g Europium-152 U -0.0258 +/-0.064 0.0474 +/-0.064 0.0947 pCi/g

'Europium-154 U -0.0311 +/-0.0745 0.0589 +/-0.0745 0.118 pCi/g Europium-155 U -0.0301 +/-0.0592 0.0476 +/-0.0592 0.0952 pCi/g Lead-212 0.848 +/-0.091 0.0269 +/-0.091 0.0538 pCi/g Lead-214 0.701 +/-0.100 0.0347 +/-0.100 0.0693 pCi/g Manganese-54 U 0.0193 +/-0.0233 0.0205 +/-0.0233 0.0411 pCi/g Niobium-94 U 0.0119 +/-0.0241 0.0183 +/-0.0241 0.0366 pCi/g Potassium-40 15.1 +/-1.29 0.160 +/-1.29 0.320 pCi/g Radium-226 0.560 +/-0.0913 0.0332 +/-0.0913 0.0663 pCi/g Silver-108m U 0.00264 +/-0.0198 0.0165 +/-0.0198 0.0331 pCi/g Thallium-208 0.271 +/-0.0492 0.0173 +/-0.0492 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 LXM1 09/15/06 1530 569078 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 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-015F Project: YANK01204 Sample ID: 171772017 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.

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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-016F Project: YANK01204 Sample ID: 171772018 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 15-SEP-06 Collector: Client Moisture: 7.46%

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 0.596 +/-0.156 0.0516 +/-0.156 0.112 pCi/g MJHI 09/25/06 0536 569469 1 Americium-241 U -0.0717 +/-0.122 0.0949 +/-0.122 0.196 pCi/g Bismuth-212 U 0.167 +/-0.152 0.144 +/-0.152 0.305 pCi/g Bismuth-214 0.317 +/-0.0736 0.0266 +/-0.0736 0.0571 pCi/g Cesium-134 U 0.0283 +/-0.0283 0.0194 +/-0.0283 0.0415 pCi/g Cesium-137 0.0917 +/-0.0302 0.015 +/-0.0302 0.0323 pCi/g Cobalt-60 U 0.0111 +/-0.0164 0.0152 +/-0.0164 0.0339 pCi/g

-Europium-152 U -0.0239 +/-0.0474 0.0404 +/-0.0474 0.085 pCi/g Europium-154 U 0.00756 +/-0.0564 0.0482 +/-0.0564 0.106 pCi/g Europium-155 U 0.0333 +/-0.0538 0.0486 +/-0.0538 0.101 pCi/g Lead-212 0.500 +/-0.0642 0.0232 +/-0.0642 0.0483 pCi/g Lead-214 0.304 +/-0.0764 0.0292 +/-0.0764 0.0615 pCi/g Manganese-54 U 0.00535 +/-0.0161 0.0145 +/-0.0161 0.0314 pCi/g Niobium-94 U 0.00382 +/-0.015 0.0135 +/-0.015 0.0291 pCi/g Potassium-40 11.6 +/-1.10 0.110 +/-1.10 0.255 pCi/g Radium-226 0.317 +/-0.0736 0.0266 +/-0.0736 0.0571 pCi/g Silver-108m U -0.0121 +/-0.0154 0.0125 +/-0.0154 0.0267 pCi/g Thallium-208 0.173 +/-0.0457 0.0141 +/-0.0457 0.0303 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 LXMI 09/15/06 1530 569078 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 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 3, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0003-016F Project: YANK01204 Sample ID: 171772018 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.

67

Fr QUALITY CONTROL DATA 68

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Report Date: October 3, 2006 Client: Connecticut Yankee Atomic Power Page 1 of 9 362 Injun Hollow Rd East Hampton, Connecticut

Contact:

Mr. Jack McCarthy Workorder: 171772 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Alpha Spec Batch 569530 QC1201185573 171772015 DUP Americium-241 U -0.000541 U -0.0675 pCi/g 197 (0% - 100%) BXLI 09/28/06 09:36 Uncert: +/-0.129 +/-0.0888 TPU: +/-0.129 +/-0.0892 Curium-242 U -0.0173 U -0.0429 pCi/g 85 (0%- 100%)

Uncert: +/-0.0747 +/-0.0376 TPU: +/-0.0747 +/-0.038 Curium-243/244 U -0.0175 U 0.0107 pCi/g 829 (0%- 100%)

Uncert: +/-0.166 +/-0.205 TPU: +/-0.166 +/-0.205 QC1201185575 LCS Americium-241 13.6 14.8 pCi/g 109 (75%-125%) 09/28/06 09:36 Uncert: +/-1.43 TPU: +/-2.33 Curium-242 U -0.0177 pCi/g Uncert: +/-0.0246 TPU: +/-0.0247 Curium-243/244 16.4 17.8 pCi/g 109 (75%-125%)

Uncert: +/-1.57 TPU: +/-2.71 QCI201185572 MB Americium-241 U -0.00771 pCi/g 09/29/06 09:15 Uncert: +/-0.119 TPU: +/-0.119 Curium-242 U 0.00 pCi/g Uncert: +/-0.0748 TPU: +/-0.0748 Curium-243/244 U -0.148 pCi/g Uncert: +/-0.107 TPU: +/-0.108 QC1201185574 171772015 MS Americium-241 13.9 U -0.000541 14.3 pCi/g 103 (75%-125%) 09/28/06 09:36 Uncert: +/-0.129 +/-1.31 TPU: +/-0.129 +/-2.15 Curium-242 U -0.0173 U 0.0439 pCi/g Uncert: +/-0.0747 +/-0.120 TPU: +/-0.0747 +/-0.120 Curium-243/244 16.8 U -0.0175 16.9 pCi/g 101 (75%-125%)

Uncert: +/-0.166 +/-1.43 TPU: +/-0.166 +/-2.47 Batch 569531 QC1201185577 171772015 DUP Plutonium-238 0.025 -0.0118 pCi/g 558 (0% - 100%) BXLI 09/28/06 09:36 69

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 171772 Page 2 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Alpha Spec Batch 569531 Uncert: +/-0.0663 +/-0.0611 TPU: +/-0.0664 +/-0.0611 Plutonium-239/240 -0.0158 -0.00644 pCi/g 84 (0%- 100%)

Uncert: +/-0.0681 +/-0.0541 TPU: +/-0.0681 +/-0.0542 QC1201185579 LCS Plutonium-238 -0.0177 pCi/g (75%-125%) 09/28/06 09:36 Uncert: +/-0.052 TPU: +/-0.0521 Plutonium-239/240 12.6 12.3 pCi/g 98 (75%-125%)

Uncert: +/-1.08 TPU: +/-1.73 QC1201185576 MB Plutonium-238 -0.0118 pCi/g 09/28/06 09:36 Uncert: +/-0.0509 TPU: +/-0.051 Plutonium-239/240 0.0128 pCi/g Uncert: +/-0.0509 TPU: +/-0.0509 QC1201185578 171772015 MS Plutonium-238 0.025 0.0538 pCi/g (75%-125%) 09/28/06 09:36 Uncert: +/-0.0663 +/-0.122 TPU: +/-0.0664 +/-0.122 Plutonium-239/240 12.8 -0.0158 13.8 pCi/g 108 (75%-125%)

Uncert: +/-0.0681 +/-1.49 TPU: +/-0.0681 +/-2.28 Batch 573310 QC1201194063 171772015 DUP Plutonium-241 U 4.46 U 4.13 pCi/g 0 (0% - 100%) DDR1 10/03/06 09:47 Uncert: +/-9.11 +/-8.44 TPU: +/-9.12 +/-8.45 QC1201194065 LCS Plutonium-241 142 116 pCilg 81 (75%-125%) 10/03/06 10:19 Uncert: +/-12.4 TPU: +/-17.6 QCI201194062 MB Plutonium-241 U -0.714 pCi/g 10/03/06 09:31 Uncert: +/-6.51 TPU: +/-6.51 QC1201194064 171772015 MS Plutonium-241 146 U 4.46 140 PCi/g 96 (75%-125%) 10/03/06 10:03 Uncert: +/-9.11 +/-13.3 TPU: +/-9.12 +/-20.0 Rad Gamma Spec Batch 569469 QC1201185432 171772001 DUP Actinium-228 1.00 0.722 pCi/g 4 (0% - 100%) MJH1 09/25/06 05:37 Uncert: +/-0.199 +/-0.187

+/-0.187 70

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 1*1 '7 Page 3 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 569469 TPU: +/-0.199 Americium-241 u 0.0354 U 0.0458 pCi/g 618 (0%- 100%)

Uncert: +/-0.071 +/-0.0896 TPU: +/-0.071 +/-0.0896 Bismuth-212 0.465 0.617 pCi/g 8 (0%- 100%)

Uncert: +/-0.287 +/-0.321 TPU: +/-0.287 +/-0.321 Bismuth-214 0.531 0.575 pCi/g 18 (0%- 100%)

Uncert: +/-0.104 +/-0.104 TPU: +/-0.104 +/-0.104 Cesium-134 u 0.0412 UI 0.00 pCi/g 87 (0%- 100%)

Uncert: +/-0.0379 +/-0.0429 TPU: +/-0.0379 +/-0.0429 Cesium-137 0.141 0.141 pCi/g 10 (0% - 100%)

Uncert: +/-0.0362 +/-0.0559 TPU: +/-0.0362 +/-0.0559 Cobalt-60 U -3.370E-05 U 0.000692 pCi/g 143 (0%- 100%)

Uncert: +/-0.0257 +/-0.022 TPU: +/-0.0257 +/-0.022 Europium- 152 U 0.0209 U 0.00935 pCi/g 332 (0%- 100%)

Uncert: +/-0.0776 +/-0.0601 TPU: +/-0.0776 +/-0.0601 Europium- 154 U -0.0547 U 0.0125 pCi/g 101 (0%- 100%)

Uncert: +/-0.0796 +/-0.0628 TPU: +/-0.0796 +/-0.0628 Europium- 155 U 0.111 U 0.0817 pCi/g 57 (0% - 100%)

Uncert: +/-0.0802 +/-0.0702 TPU: +/-0.0802 +/-0.0702 Lead-212 0.766 0.724 pCi/g 2 (0%- 20%)

Uncert: +/-0.0868 +/-0.0689 TPU: +/-0.0868 +/-0.0689 Lead-214 0.545 0.554 pCi/g 18 (0%-20%)

Uncert: +/-0.0993 +/-0.0931 TPU: +/-0.0993 +/-0.0931 Manganese-54 U -0.00902 U 0.000707 pCi/g 246 (0%- 100%)

Uncert: +/-0.0261 +/-0.0208 TPU: +/-0.0261 +/-0.0208 Niobium-94 U -0.00508 U -0.0114 pCi/g 16 (0% - 100%)

Uncert: +/-0.0217 +/-0.0204 TPU: +/-0.0217 +/-0.0204 Potassium-40 15.0 15.1 pCi/g 0 (0% - 20%)

Uncert: +/-1.36 +/-1.03 TPU: +/-1.36 +/-1.03 Radium-226 0.531 0.575 pCi/g 18 (0%- 100%)

Uncert: +/-0.104 +/-0.104 TPU: +/-0.104 +/-0.104 Silver-108m U -0.013 U -0.00982 pCi/g 53 (0% - 100%)

Uncert: +/-0.0226 +/-0.0211 71

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 171772 Page 4 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 569469 TPU: +/-0.0226 +/-0.0211 Thallium-208 0.272 0.208 pCi/g 15 (0%- 100%)

Uncert: +/-0.0562 +/-0.0503 TPU: +/-0.0562 +/-0.0503 QC1201185433 LCS Actinium-228 U -0.838 pCi/g 09/22/06 08:36 Uncert: +/-0.784 TPU: +/-0.784 Americium-241 23.4 25.6 pCi/g 109 (75%-125%)

Uncert: +/-2.11 TPU: +/-2.11 Bismuth-212 U 0.183 pCi/g Uncert: +/-1.39 TPU: +/-1.39 Bismuth-214 U 0.369 pCi/g Uncert: +/-0.315 TPU: +/-0.315 Cesium- 134 U 0.0523 pCi/g Uncert: +/-0.192 TPU: +/-0.192 Cesium- 137 9.57 10.5 pCi/g 110 (75%-125%)

Uncert: +/-1.13 TPU: +/-1.13 Cobalt-60 14.4 15.4 pCi/g 107 (75%-125%)

Uncert: +/-0.863 TPU: +/-0.863 Europium- 152 U -0.304 pCi/g Uncert: +/-0.351 TPU: +/-0.351 Europium- 154 U -0.157 pCi/g Uncert: +/-0.376 TPU: +/-0.376 Europium- 155 U 0.205 pCi/g Uncert: +/-0.314 TPU: +/-0.314 Lead-212 U 0.228 pCi/g Uncert: +/-0.303 TPU: +/-0.303 Lead-214 U 0.110 pCi/g Uncert: +/-0.266 TPU: +/-0.266 Manganese-54 U -0.122 pCi/g Uncert: +/-0.171 TPU: +/-0.171 Niobium-94 U -0.0594 pCi/g Uncert: +/-0.160 TPU: +/-0.160 Potassium-40 U 0.0985 pCi/g 72

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 171772 Page 5 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 569469 Uncert: +/-1.24 TPU: +/-1.24 Radium-226 U 0.369 pCi/g (75%-125%)

Uncert: +/-0.315 TPU: +/-0.315 Silver- 108m U -0.103 pCi/g Uncert: +/-0.150 TPU: +/-0.150 Thallium-208 U 0.144 pCi/g Uncert: +/-0.164 TPU: +/-0.164 QC1201185431 MB Actinium-228 U 0.0375 pCi/g 09/25/06 05:36 Uncert: +/-0.0692 TPU: +/-0.0692 Americium-241 U 0.0538 pCi/g Uncert: +/-0.0833 TPU: +/-0.0833 Bismuth-212 U -0.0346 pCi/g Uncert: +1-0.141 TPU: +/-0.141 Bismuth-214 UI 0.00 pCi/g Uncert: +/-0.0602 TPU: +/-0.0602 Cesium-134 U 0.0208 pCi/g Uncert: +/-0.0236 TPU: +/-0.0236 Cesium-137 U 0.00464 pCi/g Uncert: +/-0.0268 TPU: +/-0.0268 Cobalt-60 U 0.00218 pCi/g Uncert: +/-0.0182 TPU: +/-0.0182 Europium- 152 U -0.0209 pCi/g Uncert: +/-0.0493 TPU: +/-0.0493 Europium- 154 U 0.00015 pCi/g Uncert: +/-0.0476 TPU: +/-0.0476 Europium- 155 U -0.027 pCi/g Uncert: +/-0.0446 TPU: +/-0.0446 Lead-212 U 0.0118 pCi/g Uncert: +/-0.0464 TPU: +/-0.0464 Lead-214 U 0.0415 pCi/g Uncert: +/-0.0405 TPU: +/-0.0405 73

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 171772 Page 6 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 569469 Manganese-54 U 0.00295 pCi/g Uncert: +/-0.0172 TPU: +/-0.0172 Niobium-94 U 0.00439 pCi/g Uncert: +/-0.0183 TPU: +/-0.0183 Potassium-40 U 0.210 pCi/g Uncert: +/-0.270 TPU: +/-0.270 Radium-226 UI 0.00 pCi/g Uncert: +/-0.0602 TPU: +/-0.0602 Silver- 108m U 0.00855 pCi/g Uncert: +/-0.0151 TPU: +/-0.0151 Thallium-208 U 0.0198 pCi/g Uncert: +/-0.0186 TPU: +/-0.0186 Rad Gas Flow Batch 569258 QC1201184956 171772015 DUP Strontium-90 U 0.007 U -0.0101 pCi/g 0 (0% - 100%) KSD1 09/28/06 19:49 Uncert: +/-0.0247 +/-0.0253 TPU: +/-0.0247 +/-0.0253 QC1201184958 LCS Strontium-90 5.21 5.39 pCi/g 103 (75%-125%) 09/28/06 19:49 Uncert: +/-0.401 TPU: +/-0.421 QC1201184955 MB Strontium-90 U -0.00432 pCi/g 09/28/06 19:49 Uncert: +/-0.020 TPU: +/-0.020 QC1201184957 171772015 MS Strontium-90 5.22 U 0.007 4.60 pCi/g 88 (75%-125%) 09/28/06 19:49 Uncert: +/-0.0247 +/-0.365 TPU: +/-0.0247 +/-0.384 Rad Liquid Scintillation Batch 569133 QC1201184635 171772015 DUP Tritium U -6.64 U -3.93 pCi/g 0 (0% - 100%) ATH2 09/28/06 11:06 Uncert: +/-7.74 +/-8.06 TPU: +/-7.74 +/-8.06 QC1201184637 LCS Tritium 66.2 67.3 pCi/g 102 (75%-125%) 09/23/06 05:38 Uncert: +/-13.0 TPU: +/-13.0 QC1201184634 MB Tritium U -7.78 pCi/g 09/28/06 10:44 74

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 171772 Page 7 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Liquid Scintillation Batch 569133 Uncert: +/-7.70 TPU: +/-7.70 QC1201184636 171772015 MS Tritium 66.2 -0.387 56.6 pCi/g 86 (75%-125%) 09/23/06 05:22 Uncert: +/-8.81 +/-13.2 TPU: +/-8.81 +/-13.2 Batch 569145 QC1201184671 171772016 DUP Iron-55 U 12.3 U -23.8 pCi/g 0 (0% - 100%) VIXPi 09/22/06 06:54 Uncert: +/-36.0 +/-34.8 TPU: +/-36.0 +/-34.8 QC1201184673 LCS Iron-55 667 615 pCi/g 92 (75%-125%) 09/22/06 07:26 Uncert: +/-54.9 TPU: +/-68.1 QC1201184670 MB Iron-55 U -4.53 pCi/g 09/22/06 05:56 Uncert: +/-75.9 TPU: +/-75.9 QC1201184672 171772016 MS Iron-55 671 U 12.3 631 pCi/g 94 (75%-125%) 09/22/06 07:10 Uncert: +/-36.0 +/-49.3 TPU: +/-36.0 +/-64.6 Batch 569146 QC1201184675 171772016 DUP Nickel-63 U 0.0779 U -4.22 pCi/g 0 (0% - 100%) \IXP1 09/24/06 21:33 Uncert: +/-5.27 +/-6.00 TPU: +/-5.27 +/-6.00 QC1201184677 LCS Nickel-63 512 442 pCi/g 86 (75%-125%) 09/24/06 23:07 Uncert: +/-13.7 TPU: +/-19.7 QCI1201184674 MB Nickel-63 U -3.65 pCi/g 09/24/06 20:46 Uncert: +/-6.37 TPU: +/-6.37 QC1201184676 171772016 MS Nickel-63 594 U 0.0779 519 pCi/g 87 (75%-125%) 09/24/06 22:20 Uncert: +/-5.27 +/-15.0 TPU: +/-5.27 +/-23.3 Batch 569161 QC1201184720 171772015 DUP Technetium-99 U 0.189 U 0.445 pCi/g 0 (0% - 100%) KXR1 09/24/06 16:14 Uncert: +/-0.275 +/-0.294 TPU: +/-0.275 +/-0.294 QC1201184722 LCS Technetium-99 13.0 12.9 pCi/g 99 (75%-125%) 09/24/06 16:46 Uncert: +/-0.508 TPU: +/-0.586 75

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 171772 Page 8 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Liquid Scintillation Batch 569161 QC1201184719 MB Technetium-99 U 0.338 pCi/g 09/24/06 15:57 Uncert: +/-0.251 TPU: +/-0.252 QC1201184721 171772015 MS Technetium-99 13.0 U 0.189 12.8 pCi/g 99 (75%-125%) 09/24/06 16:30 Uncert: +/-0.275 +/-0.573 TPU: +/-0.275 +/-0.643 Batch 572496 QC1201192246 171772015 DUP Carbon- 14 U -0.0273 U 0.0142 pCi/g 0 (0%- 100%) AXD2 09/28/06 09:42 Uncert: +/-0.0774 +/-0.121 TPU: +/-0.0774 +/-0.121 QC1201192248 LCS Carbon- 14 6.68 7.60 pCi/g 114 (75%-125%) 09/28/06 10:26 Uncert: +/-0.320 TPU: +/-0.341 QC1201192245 MB Carbon-14 U -0.0388 pCi/g 09/28/06 07:55 Uncert: +/-0.0777 TPU: +/-0.0777 QC1201192247 :171772015 MS Carbon-14 31.2 U -0.0273 36.5 pCi/g 117 (75%-125%) 09/28/06 10:04 Uncert: +/-0.0774 +/-1.51 TPU: +/-0.0774 +/-1.61 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 Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL 76

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 171772 Page 9 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time A

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.

77

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD ATTACHMENT 4 (DQA RESULTS)

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD ATTACHMENT 4A (PRELIMINARY DATA REVIEW)

PRELIMINARY DATA REVIEW FORM Survey Unit: 9530-0003 Survey Unit Name: Central Peninsula Classification : 2 Survey Media: Soil Type of Survey : Final Status Survey Type of Measurement: Radionuclide Specific n4umber of Measurements : 15 BASIC STATISTICAL QUANTITIES Cs-137 Target Level (pCi/g): 5.38E+00 Minimum Value: 5.70E-02 Maximum Value: 4.87E-01 Mean: 2.48E-01 Median : 2.83E-01 Standard Deviation : 1.18E-01 Reported Results Cs-137 Fraction of Concentration Target Sample Identification (pCi/g) Detect? Level

+

9530-0003-001F 1.41E-01 0.026

+

9530-0003-002F 3.26E-01 0.061

+

9530-0003-003F 2.83E-01 0.053

+

9530-0003-004F 3.09E-01 0.057

+

9530-0003-005F 4.87E-01 0.091

+

9530-0003-006F 9.57E-02 0.018

+

9530-0003-007F 5.70E-02 0.011

+

9530-0003-008F 2.89E-01 0.054

+

9530-0003-009F 3.95E-01 0.073

+

9530-0003-01OF 2.87E-01 0.053

+

9530-0003-011IF 2.27E-01 0.042

+

9530-0003-012F 3.19E-01 0.059

+

9530-0003-013F 2.27E-01 0.042

+

9530-0003-014F 1.17E-01 0.022

+

9530-0003-015F 1.63E-01 0.030 (5--ý

/l :Ye Submitted by/Date 1 of 1

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD ATTACHMENT 4B (GRAPHICAL REPRESENTATION OF DATA)

FREQUENCY PLOT FOR CESIUM-137 Survey Unit: 9530-0003 Survey Unit Name: Central Peninsula Mean: 2.48E-01 pCi/g Frequency Plot For Cs-137 10 8

S4-U--

2 0

5.70E-02 1.79E-01 3.01E-01 4.22E-01 5.44E-01 Upper End Value (pCi/g)

Upper End Observation Observation Value Frequency Frequency 5.70E-02 1 7%

1.79E-01 4 27%

3.01E-01 5 33%

4.22E-01 4 27%

5.44E-01 1 7%

Total: 15 100%

- m ek' 2.-/A)

Submitted by/Date J ReviewebyDt 1 of 1

QUANTILE PLOT FOR CESIUM-137 Survey Unit: 9530-0003 Survey Unit Name: Central Peninsula Mean: 2.48E-01 pCi/g Quantile Plot For Cs-137 6.OOE-01 5.00E-01

. 4.00E-01 -I 0

(" 3 . 0 0E -0 1 - ,

82.00E-01 C

1.00E-01 0.00E+00 0 20 40 60 80 100 Percentage Cs-137 Rank Percentage 5.70E-02 1 3%

9.57E-02 2 10%

1.17E-01 3 17%

1.41E-01 4 23%

1.63E-01 5 30%

2.27E-01 6 37%

2.27E-01 7 43%

2.83E-01 8 50%

2.87E-01 9 57%

2.89E-01 10 63%

3.09E-01 11 70%

3.19E-01 12 77%

3.26E-01 13 83%

3.95E-01 14 90%

4.87E-01 15 97%

6---)

-."Oex- '0.feý 172--

Submitted by/Date-'

Review b/a

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD ATTACHMENT 4C (SIGN TEST)

Connecticut Yankee Decommissioning Project GPP-GGGR-R5121-001 Attachment A, Health Physics Procedure Rev CY-001 MAJOR Sign Test Calculation Sheet For A Single Radionuclide or Gross Activity Measurements Survey Area Number: 9530 Survey Unit Number: 0003 Survey Area Name: Central Peninsula WPIR#: 2006-0038 Classification: 2 Type I (a error): 0.05 (N): 15 Radionuclide: Cs-137 DCGL: 5.38 Results (pCi/g) DCGL - Results Sign 1.41E-01 5.24E+00 I 3.26E-01 5.05E+00 1 2.83E-01 5.1OE+00 I 3.09E-0I 5.07E+00 I 4.87E-01 4.89E+00 1 9.57E-02 5.28E+00 I 5.70E-02 5.32E+00 I 2.89E-01 5.09E+00 1 3.95E-01 4.99E+00 I 2.87E-01 5.09E+00 I 2.27E-01 5.15E+00 I 3.19E-0I 5.06E+00 1 2.27E-01 5.15E+00 1 1.17E-01 5.26E+00 I 1.63E-01 5.22E+00 I Number of positive differences (S+): 15 Critical Value: 11 Survey Unit Meets Acceptance Criterion Performed by: Date: L)/2-  !/ý'6 Independent Review b Date: ,1 10(6 Page 1 of 1

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD ATTACHMENT 4D (QC SPLIT RESULTS)

Health Physics Procedure 24265-000-GPP-GGGR-R5]24-000-Rev.CY-000 400-e.Y00Atcmn Attachment A HelhPyisPoeue246-0-P-GRR" Split Sample Assessment Form Survey Area#: 9530 Survey Unit #: 0003 Survey Unit name: Central Peninsula Sample Plan or WPIR#: 2005-0038 SML#: 9530-0003-004 Sample

Description:

Comparison of split samples collected from sample measurement location #4 and analyzed using gamma spectroscopy by off-site Vendor Laboratory. The standard sample was 9530-0003-004F, the comparison sample was 9530-0003-004FS.

STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (Y1N)

Cs-137 3.09E-1I 3.06E-2 10 0.6-1.66 3.1IIE-l 3.63E-2 1.0 Y Comments/Corrective Actions: N/O 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 Page 1 of 1

Health Physics Procedure 24265-000-GPP-GGGR-R5124-000-Rev.CY-000 Attachment A HelhPyisPoeue22500GPGG-5I2-0-e.Y00Atcmn Split Sample Assessment Form Survey Area#: 9530 Survey Unit #: 0003 Survey Unit name: Central Peninsula Sample Plan or WPIR#: 2005-0038 SML#: 9530-0003-006 Sample

Description:

Comparison of split samples collected from sample measurement location #6 and analyzed using gamma spectroscopy by off-site Vendor Laboratory. The standard sample was 9530-0003-006F, the comparison sample was 9530-0003-006FS.

STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (Y0N)

Cs-137 9.57E-2 1.64E-2 6 0.5-2.0 9.47E-2 1.43E-2 0.99 Y

___ I I

__ __ I __ .1 1 1 1

___ __ __ ___ 1 ___

I 1- *1- -I- I t I-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 Page 1 of 1

CENTRAL PENINSULA SURVEY UNIT 9530-0003 RELEASE RECORD ATTACHMENT 4E (COMPASS DQA WITH POWER CURVE)

DQA Surface Soil Report Assessment Summary Site: 9530-0003 FSS m/b-/Lý/U Planner(s): McCarthy Survey Unit Name: Central Peninsula 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 Curve 1

U 0.9

.4-U I-0.7 5.

0.6 cI~

.5 0.5 0.4 0.3 1skd 0.2 L

I' 0.1 0

0 1 2 3 4 5 6 Soil Concentration (p Ci/g), including 1ack*ound Prospective Power N 1-beta .... Actual Power LBGR , , Estimated Power DCGL ---- Retrospective Power COMPASS vI.0.0 11/2812006 Page I

DQA Surface Soil Report Survey Unit Data NOTE: Type = "S" indicates survey unit sample.

Type = "R" indicates reference area sample.

Sample Number Type Cs-137 (pCi/g) 9530-0003-001 F S 0.14 9530-0003-002F S 0.33 9530-0003-003F S 0.28 9530-0003-004F S 0.31 9530-0003-005F S 0.49 9530-0003-006F S 0.1 9530-0003-007F S 0.06 9530-0003-008F S 0.29 9530-0003-009F S 0.4 9530-0003-01OF S 0.29 9530-0003-011 F S 0.23 9530-0003-012F S 0.32 9530-0003-013F S 0.23 9530-0003-014F S 0.12 9530-0003-015F S 0.16 Basic Statistical Quantities Summary Statistic Survey Unit Background DQO Results Sample Number 15 N/A N=15 Mean (pCi/g) 0.25 N/A 0.26 Median (pCi/g) 0.28 N/A N/A Std Dev (pCi/g) 0.12 N/A 0.0713 High Value (pCi/g) 0.49 N/A N/A Low Value (pCi/g) 0.06 N/A N/A COMPASS v1.0.0 11/28/2006 Page 2

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