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Final Status Survey Release Record Central Peninsula Survey Unit 9530-0001.
	ML063540395
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
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	Download: ML063540395 (125)
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CYAPCO FINAL STATUS SURVEY RELEASE RECORD CENTRAL PENINSULA SURVEY UNIT 9530-0001 Prepared By: ;2& Date: __

FSS Engineer" Reviewed By. Date: (0 Z3 c(.

S Engin r Approved By: Date:/1_ &d" Technical Support Manager Revision 0

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD TABLE OF CONTENTS

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

2. CLASSIFICATION BASIS .............................................................. 3

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

4. SURV EY DESIGN ........................................................................... 8

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

6. SURVEY RESULTS ...................................................................... 12

7. QUALITY CONTROL .................................................................... 15

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

9. REMEDIATION AND RESULTS ........................ ...................... 16

10. CHANGES FROM THE FINAL STATUS SURVEY PLAN ......... 16

11. DATA QUALITY ASSESSMENT (DQA) ..................................... 16

12. A N OM A LIES ................................................................................. 17

13. CON CLU SION ............................................................................... 17

14. A TTA CHM EN TS .......................................................................... 18 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 (83 pages including cover) 14.4 Attachment 4 - DQA Results (14 pages including covers)

TOTAL 124 Revision 0

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD SURVEY UNIT DESCRIPTION Survey Unit 9530-0001 (Central Peninsula) is designated as Final Status Survey (FSS) Class 2 and consists of 5,753 m2 (1.4 acres) of uninhabited open land located approximately 2,294 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; however, there are some trees and bushes remaining in the area.

The reference coordinates associated with this survey unit are E013 through E018 by S095 through S109 (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 9530-0001 as Class 2 in August 2006.

The "Classification Basis Summary" conducted for Survey Unit 9530-0001 consisted of:

a) A review of the 10CFR50.75 (g) (1) database, b) A review of the "InitialCharacterizationReport" and the "HistoricSite.

Assessment Supplement, "

c) Historic and current survey records review, d) Visual inspections and a "walkdown."

A review of the 10CFR50.75(g)(1) database report identified two documents associated with this survey unit.

a) Event PIR 80-37: Contamination was documented to be present in an area outside the restricted area. Small areas of low-level contamination were found on the facility grounds through a routine survey in a normally non-radioactive area.

b) Event PIR 89-35: Contamination was identified in the 115 kV switchyard moat (Structure 111, refer to Connecticut Yankee (CY)

Drawing SK-16112-10032 sheet 2. The source of the contamination was the discharge of approximately fifty (50) gallons of radioactive liquid using an unmonitored, unmarked drain line in the Spent Fuel Building. Once identified, decontamination was performed in the Revision 0 3

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD switchyard moat and an outfall area outside the Radiologically Controlled Area (RCA). However, a plant survey performed on 2/28/89 shows that some of the radioactive material was deposited along the unpaved road in this survey unit. The survey also documents that the area was excavated and surveyed when the condition was identified.

The survey documents that count rates using portable beta detection instrumentation were less then one hundred corrected counts per minute above background (100 ccpm).

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

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 9530-0001. Some of the excavated spoils from these areas were temporarily stored in Survey Unit 9530-0001 during the investigation. 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 I - Baic S**istica nities fon tepo FSSSurvey Minimum Observed Concentration (pCi/g): 6.39E-02 Maximum Observed Concentration (pCi/g): 3.15E-01 Mean (pCi/g): 1.61E-01 Median (pCi/g): 1.15E-01 Standard Deviation (pCi/g): 9.16E-02 Revision 0 4 Revision 0 4

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD The FSS Engineer performed a visual inspection and walk-down during August 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).

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 9530-0001 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 Revision 0 5 Revision 0 5

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD groundwater radioactivity and future groundwater radioactivity that will be contributed by building basements and footings.

The DCGLs presented in Chapter 6 of the LTP were developed for exposures from three (3) components, that is, residual radioactivity in soil, existing groundwater radioactivity, and future groundwater radioactivity from the burial of concrete foundations or footings from site buildings containing residual radioactivity. Equation 1 shows the mathematical relationship between the three (3) components and the total dose.

Equation 1 HTotal =Hsoil +HExistingGW +-HFutureGW The total dose under the LTP criteria is twenty-five (25) mrem/yr TEDE from all three (3) components. The allowable total dose under the Connecticut Department of Environmental Protection (CTDEP) radiological remediation standard for CY is nineteen (19) mrem/yr TEDE. To satisfy both the LTP and CY CTDEP criteria, the dose from soil must be reduced when using the existing and future groundwater dose values discussed above.

This survey area is affected by existing groundwater (reference CY memo ISC 06-024). Therefore, the dose contribution from existing groundwater is bounded by two (2) 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 9530-0001 RELEASE RECORD C-14 5.66E+00 3.85E+00 2.26E-01 Mn-54 1.74E+01 1.18E+O1 6.96E-01 Fe-55 2.74E+04 1.86E+04 1.1 OE+03 Co-60 3.81 E+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-01 Eu- 152 1.01E+01 6.87E+00 4.04E-0 1 Eu-154 9.29E+00 6.32E+00 3.72E-01 Eu-155 3.92E+02 2.67E+02 1.57E+01 Pu-238 2.96E+0 1 2.01 E+O1 1.1 8E+00 Pu-239/240 2.67E+01 1.82E+01 1.07E+00 Pu-241 8.70E+02 5.92E+02 3.48E+O 1 5

Am-241 ( ) 2.58E+01 1.75E+01 1.03E+00 Cm-243/244 2.90E+01 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.

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 Revision 0 7 Revision 0 7

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD 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 9530-0001 (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 5.26 to maintain the relative shift (A/a) 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 decommissioning license termination rule (10 CFR 20, Subpart E). The result of the COMPASS computer run showed adequate power for the survey design.

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CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD The survey design specified fifteen (15) surface soil samples for non-parametric statistical testing and two (2) samples at biased locations.

The grid pattern and locations of the soil samples were determined using Visual Sample Plan (VSP) in accordance with Procedure RPM 5.1-14, "Identifying, and Marking Surface Sample Locations for Final Status Survey." Visual Sample Plan was created by Pacific Northwest National Laboratory (PNNL) for the United States Department of Energy. A systematic triangular grid pattern with a random starting point was selected for sample design, which is appropriate for a Class 2 area.

Judgmental sampling was included as a feature of this survey design to account for any anomalies potentially identified in the field.

Sample locations were identified using AutoCAD-LT, a commercially available plotting software package with coordinates consistent with the Connecticut State Plane System. These coordinates were integrated with a GPS to locate sample locations in the field. Sample Measurement Locations for the design are listed with the GPS coordinates in Table 3.

Table3 - Samp!le Measurement Locations with Associated GPS Coordinates1 Desigmaion i Northing Ea4stinp 9530-0001-OOIF 235541.75 670285.43 9530-0001-002F 235541.75 670353.87 9530-0001-003F 235541.75 670422.31 9530-0001-004F 235541.75 670490.75 9530-0001-005F 235482.48 670388.09 9530-0001-006F 235482.48 670456.53 9530-0001-007F 235482.48 670524.97 9530-0001-008F 235482.48 670593.41 9530-0001-009F 235423.21 670490.75 9530-0001-01OF 235423.21 670559.19 9530-0001-01 IF 235423.21 670627.63 9530-0001-012F 235423.21 670696.07 9530-0001-013F 235423.21 670764.51 9530-0001-014F 235363.93 670661.85 9530-0001-015F 235363.93 670730.29 9530-0001-016F 235442.18 670580.76 9530-0001-017F 235463.77 670617.68 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 9530-0001 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 15% 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.

Table 4 -Syno sisofthe S Ne Desig n Feature, Desig nCriteria ~ Basis Survey Unit Land Area 5,753 m2 Based on AutoCAD-LT Type I and Type 2 errors were 17 0.05, sigma was 0.092 pCi/g, Number of Measurements (15 systematic grid) the LBGR was adjusted to 5.2 (2 biased) to maintain Relative Shift in the range of 1 and 3 Grid Spacing 21.0 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 survey unit Revision 0 10

CENTRAL PENINSULA SURVEY UNIT 9530-000 1 RELEASE RECORD Scan Survey Area Approximately 15% I he LI P requires >1 U/%

0 area coverage for Class 2 survey Coverage of the area units Scan Detectable backgroundover Administratively set to achieve 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.

Three (3) scan areas were established that constituted approximately 15% of the surface area of Survey Unit 9530-0001. Grid lines, one meter wide, were painted on the ground of each of the three (3) scan areas. A background survey was performed around the survey unit and it was determined that, using a Eberline E-600 with a SPA-3 sodium iodide detector, background ranged from 6,200 counts per minute (cpm) up to 8,100 cpm.

The scan areas were established and each area was 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 15% 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.

Fifteen (15) 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 9530-0001 RELEASE RECORD Two (2) samples (9530-0001-003F and 9530-0001-008F) were randomly selected for HTD radionuclide analysis.

The implementation of survey specific quality control measures included the collection of two (2) samples (9530-0001-006F and 9530-0001-014F) for "split sample" analysis.

6. SURVEY RESULTS All field survey activities were conducted between September 8, 2006 and September 15, 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.

'rable 5 -Scan Results for Sample Measurevment Locations Measurement Reading evepm > Action L~eNel

1 6.74 8.48 NO 2 7.06 10.4 NO 3 6.55 9.25 NO 4 8.62 8.70 NO 5 7.77 8.72 NO 6 7.53 8.63 NO 7 8.41 8.40 YES 8 7.87 9.60 NO 9 7.18 8.74 NO 10 7.87 8.93 NO 11 7.44 8.57 NO 12 7.47 8.81 NO 13 7.26 8.48 NO Revision 0 12

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD Table 5,- Scan Results for Sample Measurement Locations Sample Highbest Logg-ced Measurement Reaidings Action Level >Action LeNel~

SLocationW (kcpm) 2~ kp 14 7.17 8.88 NO 15 8.45 9.29 NO 16 8.27 8.70 NO 17 7.86 9.42 NO (1) The action level is based on a measurement above ambient background in accordance with the FSS plan (2) The FSS plan requires movement of the sample measurement location to the area within the 1 meter radius yielding the response above the action level Three (3) areas, that comprised approximately 15% 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 15, 2006. One (1) elevated measurement location was identified during scanning. A confirmatory sample was collected at the elevated measurement location. The sample collected at the elevated measurement location was denoted as 9530-0001-018F.

A map identifying all of the sample locations is provided in Attachment 1.

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

nTable 6- ScanA Hig~hest Logged Action Level(*).-

.S...i Investigation Ara RaI,-

(kcpm) Reading ame Identification (2)ple None - no 1 7.38 8.93 elevated areas None identified 2 10.6 7.98 ER-02-01-1 9530-0001-018F None - no 3 6.99 7.73 elevated areas None L _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, Charleston, South Carolina. The laboratory analyzed the fifteen (15) samples collected for non-parametric statistical testing, the associated field splits, the two (2) biased samples, and the one (1) confirmatory 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).

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CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD Cs-137 was identified in fourteen (14) of the fifteen (15) samples collected for non-parametric statistical testing. Cs-137 was the primary radionuclide confirming the DQOs. The mean of the gamma spectroscopic analysis results for the sample population indicated that Cs-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.

A summary of the fifteen (15) samples collected for non-parametric statistical testing results is provided in Table 7.

9530-0001-001F 1.30E-01 0.024 9530-0001-002F 1.27E-01 0.024 9530-0001-003F 2.59E-01 0.048 9530-0001-004F 1.31E-01 0.024 9530-0001-005F 4.85E-02 0.009 9530-0001-006F 1.21E-01 0.022 9530-0001-007F 1.34E-01 0.025 9530-0001-008F 1.33E-01 0.025 9530-0001-009F 6.41E-02 0.012 9530-0001-O0OF 1.34E-01 0.025 9530-0001-011 F 1.06E-01 0.020 9530-0001-012F 8.50E-02 0.016 9530-0001-013F 7.29E-02 0.014 9530-0001-014F 5.47E-02 0.010 9530-0001-015F 4.15E-02 0.008 (1) The Operational DC( L trom Table 2 is 5.38 pC1/g tor 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.

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CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD As previously stated in Section 4 of this report, the criteria for de-selection of a radionuclide is a concentration that is less than 5% of the Operational DCGL for individual radionuclides and less than 10% of the Operational DCGLs for aggregates. Sr-90 and Pu-238 were the only HTDs, which by analysis, met the criteria for detection (i.e., a result greater than two standard deviations uncertainty). The highest result for both Sr-90 and Pu-238 was <1% of the Operational DCGL.

9530-0001-008F 2.67E-03 0.003 1.02E-01 0.005 (1) The Operational DCGL from Table 2 is 1.05 pCi/g for Sr-90 and 20.1 pCi/g for Pu-238 to achieve 17 mrem/yr TEDE Two (2) biased samples were collected at locations selected by FSS Supervision based on professional judgment and observation. Gamma spectroscopy analysis was performed by the off-site laboratory to the required MDC.

9530-0001-017F 1.82E-01 0.034 (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. Thirteen percent (13%) 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 location 9530-0001-006. However, Cs-137 was not detected in sufficient quantities in the field split results at location 9530-0001-014 to evaluate in accordance with procedure. Evaluation using the reported results for K-40 resulted in acceptable agreement between the field split results at location 9530-0001-014.

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.

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CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD

8. INVESTIGATIONS AND RESULTS One (1) confirmatory sample was collected in scan area 2 at a location exhibiting elevated scan readings. The sample is denoted as shown in Table 6, with the sample result shown in Table 10 below.

Table 10 - Cofirtniat'oyy Sample Resuths,

~Sam~e~umbe I Sarnle umbr Cs4137 1)'i/ I

~~Fraction of the pera~tional DCGL~

9530-0001-018F 1.67E-01 0.031 (1) The Operational DCGL from Table 2 is 5.38 pCi/g for Cs-137 to achieve 17 mrem/yr TEDE

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

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

11. DATA QUALITY ASSESSMENT (DQA)

The DQO sample design and data were reviewed in accordance with Procedure RPM 5.1-23, "Data Quality Assessment, " for completeness and consistency.

The sampling design had adequate power as indicated by the Retrospective Power Curve. The Sign Test was performed on the data and compared to the original assumptions of the DQOs. The evaluation of the Sign Test results demonstrates that the survey unit passes the unrestricted release criteria, thus, the null hypothesis is rejected.

Documentation was complete and legible. Surveys and sample collection were consistent with the DQOs and were sufficient to ensure that the survey unit was properly designated as Class 2.

The preliminary data review consisted of calculating basic statistical quantities (e.g., mean, median, standard deviation). The mean and median values are well below the Operational DCGL when used in conjunction with the unity rule.

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.

Revision 0 16 Revision 0 16

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD 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 -21% 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 1.3.

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

12. ANOMALIES No anomalies were noted.

13. CONCLUSION Survey Unit 9530-0001 has met the final DQOs of the FSS plan. The ALARA criteria for soils as specified in Chapter 4 of the LTP were achieved. Elevated Measurement Comparison and remediation was not required.

Cs-137 was used for statistical testing to determine the adequacy of the survey unit for FSS.

The sample data passed the Sign Test. The null hypothesis was rejected. The Retrospective Power Curve generated using COMPASS shows adequate power was achieved. The survey unit is properly designated as Class 2.

The dose contribution from soil is less than 1 mrem/yr TEDE based on the average concentration of the samples used for non-parametric statistical sampling.

This survey area is affected by existing groundwater (reference CY memo ISC 06-024); therefore the dose contribution from existing groundwater is bounded at two (2) mrem/yr 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 9530-0001 is acceptable for unrestricted release.

Revision 0 17 Revision 0 17

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD

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 18 Revision 0 18

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD ATTACHMENT 1 (FIGURES)

j-coNntcVT AIVZ-r 0 Connecticut Yankee Atomic Power Company IIII EV Site Map With Reference To Survey Unit 9530-0001

4..

13 K

1 12 = Wetrand 4 11 15 S-Samj*LOCafee 6 7

I6 1l 10 0 37.5 65 9 Feet 5 Coarmkft mcw NA27CoftvSM Connecticut Yankee Atomic PowerCompany Survey Unit9530-0001 FinalStatus Survey Design

0.08 0.13 0.04 - WtLaid 0.10 0.13 0.26 0.06 0 37.5 65 0.13 ! Fet 0.12 NOWdaI3 cMOC101m 0.

Connecticut Yankee Atomic Power Company Survey Unit9530-0001 FinalStatusSurvey Cs-137PostingPlot

A; - WatLand F2 -ScmAm 0 -sMnkLVud 0 37.5 65 iýFee Notcs Scan Area 1 Bodw-dww hu 6.2kqmn b

&I--FM

, , . by=i BEM0 i P-hI Refrso7k, e

-Wnf Connecticut Yankee Atomic PowerCompany Survey Unit 9530-0001 FinalStatus Survey Scan Awas

Scan Area 2 K

7ý- WetLzd M

0 375 65 NoWi Scan Area 1 Recbfrto Th*d.9fter ed ampkiwatm~d Tab 10for iljecwzfmuoy auk*iinuh Connecticut Yankee Atomic Power Company Survey Unit9530-0001 Biasedand Confnlatwy Samples

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD ATTACHMENT 2 (SCAN RESULTS)

Survey Release Record Sample Location Scan Results Survey Unit 9530-0001 Sample Name Background Action Level Results Above Log Date Log Time E600 SIN Probe SIN (C~m) (cPm) AL 9530-01-SL-00-01-0 7270 8488 6740 9/8/2006 10:05:00 1116 1006 9530-01-SL-00-02-0 9080 10441 7060 9/8/2006 10:08:00 1116 1006 9530-01-SL-00-03-0 7980 9256 6550 9/8/2006 10:16:00 1116 1006 9530-01-SL-00-04-0 7470 8704 8620 9/8/2006 10:25:00 1116 1006 9530-01-SL-00-05-0 7490 8726 7770 9/8/2006 10:32:00 1116 1006 9530-01-SL-00-06-0 7410 8639 7530 9/8/2006 10:38:00 1116 1006 9530-01 -SL-00-07-0 7190 8401 8410 + 9/8/2006 11:01:00 1116 1006 9530-01 -SL-00-08-0 8300 9601 7870 9/12/2006 8:04:00 1116 1006 9530-01-SL-00-09-0 7510 8748 7180 9/14/2006 8:06:00 1105 1012 9530-01-SL-00-10-0 7680 8931 7870 9/12/2006 8:17:00 1116 1006 9530-01 -SL-00-1 1-0 7350 8574 7440 9/12/2006 8:24:00 1116 1006 9530-01-SL-00-12-0 7570 8812 7470 9/12/2006 8:28:00 1116 1006 9530-01 -SL-00-1 3-0 7270 8488 7260 9/14/2006 8:01:00 1105 1012 9530-01-SL-00-14-0 7640 8888 7170 9/14/2006 7:55:00 1105 1012 9530-01-SL-00-15-0 8020 9299 8450 9/14/2006 7:58:00 1105 1012 9530-01-SL-00-16-0 7470 8704 8270 9/12/2006 10:27:00 1116 1006 9530-01-SL-00-17-0 8140 9428 7860 9/12/2006 10:17:00 1116 1006 9530-01-ER-02-01-1 (1) 6800 7978 10600 + 9/15/2006 11:28 AM 1105 1012 (1) Elevated reading corresponds to confirmatory sample location 9530-0001-018 AL - Action Level

Survey Release Record Scan Area Results Survey Unit 9530-0001 9530-0001 SCAN AREA 1 Background Action Level Results Above Log Date Log Time E600 S/N Probe S/N Sample Name (CPM) fcPM) AL 9530-01-SC-01-01-0 6220 7346 6860 9/15/2006 8:20:00 1105 1012 9530-01-SC-01-02-0 7390 8618 7220 9/15/2006 8:26:00 1105 1012 9530-01-SC-01-03-0 7300 8520 7330 9/15/2006 8:32:00 1105 1012 9530-01-SC-01-04-0 7680 8931 7380 9/15/2006 8:37:00 1105 1012 9530-01-SC-01-05-0 7240 8455 6970 9/15/2006 8:43:00 1105 1012 9530-0001 SCAN AREA 2 9530-01 -SC-02-01-0 6 800 7978 6150 9/15/2006 9:57:00 1105 1012 9530-01-ER-02-01-1 6.800 7978 10600 9/15/2006 11:28:00 1105 1012 9530-01 -SC-02-02-0 7:240 8455 6120 9/15/2006 10:09:00 1105 1012 9530-01 -SC-02-03-0 7'030 8227 6430 9/15/2006 10:16:00 1105 1012 9530-01 -SC-02-04-0 8 120 9407 6200 9/15/2006 10:20:00 1105 1012 9530-01 -SC-02-05-0 7'600 8845 7740 9/15/2006 10:24:00 1105 1012 9530-01-SC-02-06-0 7 480 8715 6530 9/15/2006 10:28:00 1105 1012 9530-0001 SCAN AREA 3 9530-01 -SC-03-01-0 6 710 7880 6690 9/15/2006 10:48:00 1105 1012 9530-01-SC-03-02-0 6.390 7532 6770 9/15/2006 10:51:00 1105 1012 9530-01-SC-03-03-0 6 550 7706 6280 9/15/2006 10:54:00 1105 1012 9530-01-SC-03-04-0 6 790 7967 6630 9/15/2006 10:56:00 1105 1012 9530-01-SC-03-05-0 6 480 7630 6600 9/15/2006 10:58:00 1105 1012 9530-01-SC-03-06-0 6 570 7727 6990 9/15/2006 11:01:00 1105 1012 9530-01 -SC-03-07-0 6 560 7717 6210 9/15/2006 11:03:00 1105 1012 9530-01-SC-03-08-0 6 710 7880 6780 9/15/2006 11:06:00 1105 1012 AL - Action Level

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD ATTACHMENT 3 (LABORATORY DATA)

General Narrative',

1

CASE NARRATIVE For CONNECTICUT YANKEE RE: Soil PO# 002332 Work Order: 172114 SDG: MSR#06-1276 September 27, 2006.

Laboratory Identification:

General Enineering Laboratories, LLC Mailing Address:

P.O. Box 307 12 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 20, 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 1721.14001 9530-0001-008F 172114002 9530-0001-01OF 172114003 9530-0001-01 IF 172114004 9530-0001-012F 172114005 9530-0001-016F 172114006 9530-0001-017F 172114007 9530-0001-018F 172114008 9530-0001-001F 172114009 9530-0001-002F GIENERAL 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

172114010 9530-0001-003F 172114011 9530-0001-004F 172114012 9530-0001-005F 172114013 9530-0001-006F 172114014 9530-0001-006FS 172114015 9530-0001-007F 172114016 95-30-0001-009F 172114017. 9530-0001-013F 172114018 9530-0001-014F 172114019 9530-0001-014FS 1721.1402'0 .9530-0001-0 15F 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:

Eighteen soi samples :were analyzed for FSSGAM.

Two soil samples were analyzed for FSSALL.

Internal Chain of Custody:

Custody was maintained for the sample(s).

Data Packame:

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 packagehas been authorized by the Laboratory Manager or a designee, as verified by the following signature.

Cheryl Jones Project Manager GENDE-RAL 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

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

. 42DO904046 California 01 Ii ICA Colorado GenEngLabs Connecticut PH-0169 Dept. of Navy NFEsc 41i "

EPA WG-15J Florida*/ELAP E87156 Georgia E87 156 (FUNELAP)

Hawaii N/A Idaho :N/A Illinois 200029 Indiana C-SC-01 Kansas E- 10332 Kentucky .. 90129 Louisiana 03046 Maryland, 270 Massachusetts M-SCOI2 Michigan 9903 Nevada SC 12 New Jersey SCO02 New Mexico FL NELAP E97156 New York 11501 North Carolina 233 North Carolina Drinking W 45709 North Dakota- R- 158 Oklahoma 9904 Pennsylvania 68-00485 South Carolina 101200061 1058500 1t10120002 Tennessee 02934 Texas TX213-2006A :

Texas NELAP T104704235-06-TX U.S. Dept. of Agriculture S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont VT87156 Virginia 00151 Washington Cl641 4

Chain of Custody And oSuprting.

Documentation 5

Health Physics Procedure GPP-GGG R-R5 104-003-Attachment B-CY-001 Major Chain of Custody Form No. 2006-00565 Connecticut Yankee Atomic Power Company 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: Comments:

Jack McCarthy 860-267-3924 Analytical Lab (Name, City, State)

General Engineering Laboratories 2040 Savage Road. Charleston SC. 29407 cj 843 556 8171. Attn. Cheryl Jones V)

Priority: 1130 D. Z 14 D. 117 D. 13 D.

Container 1-4 ILA Sample Size-Sample Designation Date Time Media Type &Type Comment, Preservation Lab Sample ID Code Code Code 9530-0001-008F 9-/Z-0 oSp' ao TS G BP X .. ._

9530-0001-O0OF o,,/7 0.0'/-P/ TS G BP X 9530-0001-011F oz, ;

0P TS G BP X 9530-0001-012F f-1zo -/ TS G BP X 9530-0001-016F q.-/.f-0 . /00Z TS G BP X .. _"_*_"____,

9530-0001-017F dz -oC

.- v /l/ol TS G BP X 4 4 .4 4 4 .4. 4 I .1 S-.-.------L-----..-J. I 4 4 4 4 4 4.-4 L ~ I

-J _________ .1______ _______ ________ .4. ____ .4______ L _____ i L...........................L...................L, I NOTES: PO #: 002332 MSR #: 06- /276 SSWP# NA Z LTP QA E1 Radwaste QA 11 Non QA Samples Shipped Via: Internal Container E Fed Ex. Temp.: __ Deg.

-1ups C F-1 Hand Custody Sealed?

YE NE

1) Relinquishedy Date/Time 2) Received By Date/Time Custody Seal 0 Other Intact?

3) Relinquished By Date/Time 4) Received By. Date/Time YO NO

-Rill o*f Lntina "*

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-00 1 Major Chain of Custody Form No. 2006-572 Connecticut Yankee Atomic Power Company 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 ____ _____ _________________ _____

Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: Comments:

Media Sample Container Jack McCarthy 860-267-3924 Code Type Size*

Analytical Lab (Name, City, State): " Code "* ~~~Code

&Type " """..

General Engineering Laboratories Cod 2040 Savage Road Charleston, SC 29407 ATT: Cheryl Jones (843-556-8171)

Priority: Fi 30 D. E 14 D. El 7 D.

Other:"_ _

Sample Designation Date Time Comment, Preservation Lab Sample ID 9530-0001-018F 9/15/06 1130 TS G BP X ._ _"

NOTES: PO #: 002332 MSR #: 4y-Ig'76 E LTP QA Li Radwaste QA EL Non QA Samples Shipped Via: Internal Container

. Fed Ex Temp.: .*),.Deg. C

.{. . ..-. Li- ups__

"" l Hand Custody Sealed?

1) eli quished By D te/lime/ 2)r Dae/Time Div..- Custody Seal Intact?

5), Re*lnuished By.. . 19 * ( , --i"Other

/3)'R' Date/Time'

'fiBle 4) Received

-*/**,.~~~il .. t. By .*.ding Date/Time B L of La Y 0 N *

5) Relinquished-By Date/Time 6) Received By " i' "".Date/Time *.:..

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-00 I Major

.*.* h inof C. stody Form No. 2006-00575 Connecticut Yankee Atomic Power Company C 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556

Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only, Contact Name & Phone: Comments:

Jack McCarthy 860-267-3924 Analytical Lab (Name, City, State)

General Engineering Laboratories 2040 Savage Road. Charleston SC. 29407 " <

843 5568171. Attn. CherylJones Priority: E] 30 D. E 14 D. [_ 7 D. [ 3 D.

Container Sample Size-,

Sample Designation Date Time Media Type &Type Comment, Preservation Lab Sample ID Code Code Code..

9530-0001-001F 9/8/06 1006 TS G BP. X 9530-0001-002F 9/8/06 1010 TS G BP X -.

9530-0001-003F 9/8/06 1016 TS G BP X 9530-0001-004F 9/8/06 1026 TS G BP X -

9530-0001-005F 9/8/06 1033 TS G BP X --

9530-0001-006F .9/8/06 1039 TS G BP X ..

9530-0001-006FS 9/8/06 1039 TS G BP X NOTES: PO #: 002332 MSR #: 06-/z74' SSWP# NA Z LTP QA D Radwaste QA LI Non QA Samples Shipped Via: Internal Container

] Fed Ex

Temp.: _ Deg.

El ups - C E.l Hand Custody Sealed?

YLI ND]

Relinq*uCsseody Date/Time Seal

1) Relinqushe. 2) Received~y " Date/Time Custody Seal 1/' ~ 7?,.~/;, E~lIOther* Intact?

3). Relinquished By Date/Time 4) Received By .. *-Date/Time .... .* Y LI NO Bill of Lading #

.5) Relinquished By Date/Time 6) Received By Date/Time

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-00 1 Major Chain of Custody Form No. 2006-00576 Connecticut Yankee Atomic Power Company 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested LabUse Only Contact Name & Phone: Comments:

Jack McCarthy 860-267-3924 Analytical Lab (Name, City, State)

General Engineering Laboratories 2040 Savage Road. Charleston SC. 29407 <

843 556 8171. Attn. Cheryl Jones C/)

Priority: II 30 D. Z 14 D. El 7 D. ] 3 D.

Sample Container Size"Cmet rsrato a apeI Sample Designation Date Time Media Type &Type Comment, Preservation Lab Sample ID Code Code Code 9530-0001-007F 9/8/06 1101 TS G BP X ____"_____"__"_

9530-0001-009F 9/8/06 1436 TS G BP X !- -

9530-0001-013F 9/8/06 1413 TS G BP X 9530-0001-014F 9/8/06 1417 TS G BP X __ "____,_*

9530-0001-014FS 9/8/06 1417 TS G BP X . . -

9530-0001-015F 9/8/06 1402 TS G BP X -

NOTES: PO #: 002332 MSR #: 06-t'776 SSWP# NA Z LTP QA E] Radwaste QA "l Non QA Samples Shipped Via: Internal Container

Fed Ex Temp.: _2 Deg.

D uPs C El Hand Custody Sealed?

YE NE5

1) Reli ed Date/Time 2) Received By Date/Time Custody Seal T" 3 1'f] 7 y,.p, Other Intact?

3) Relinquished By Date/Time 4) Received By Date/Time YE Y NE Bill of Lading #

5) Relinquished By Date/Time 6) Received By Date/Time

Connecticut Yankee Statement of Work for Analytical Lab Services CY-ISC-SOW-O01 Figure 1. Sample Check-in List L

Date/Time Received: 7 - 6 - 0 &, e; SDG#: (0 Work Order Number:

" :* ". ... " : 1, ft~ ftl2- (i'?3fl""

Shipping Container ID: 7- 95 g/1lY/ 7 l

., Chain of Custody # 0ý0.61- - ,,

1. Custody Seals oif shipping container intact?

Yes -<Nofj 2.. Custody Seals dated and signed? fZ/

Yes-['-. o [-,.

3. Chain-of-Custody record present?

Yes [4No [I

4. Cooler temperature PP-

5. Vermiculite/packing materials is:

Wet I Dry[<ýr 6.' Number of samples in shipping container:

7. Sample holding times exceeded?

Yes NO :I 1 .8. Samples have:

II ' e ' ".. .......hazard labels --. .

V"custody seals - . */appropriate sample labels

9. Samples are:

. in good condition leaking

-broken -have air bubbles

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

II. *Description of anomalies (include sample numbers):

Sample Custodian/Laboratory:

/7-' Date. /0 o - o6a.

Telephoned to:. On By

RADiOLOGICAL

.ANALYS I.S....

11

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

Work Order 172114 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: 572120.

Prep Batch Number: 570846 Dry Soil Prep GL-RAD-A-021 Batch Number: 570843 Sample ID Client ID.

172114001 '9530-0001-008F 172114010 9530-0001-003F 1201191303 Method Blank (MB) 1201.191304. 172114001 (9530-0001-008F) Sample Duplicate (DUP)

.1201191305 172114001 (9530-0001-008F) Matrix Spike (MS) 1201191306 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-01 I REV# 14.

Calibration Information:

Calibration Information All initial and continuing calibration requirements have been met.

Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s).

Sample Geometry All counting sources were prepared in the same geometry as the calibration standards.

12

Ouality Control (0C) Information:

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

Designated QC The following sample was used for QC: 172114001 (9530-0001-008F).

QC Information.

All of the QC samples met the required acceptance limits.

Technical Information:

Holding Time.

All sample procedures for this sample set were performed within the required holding time.

Preparation Information All preparation criteria have been met for these analyses.

Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis.

Miscellaneous Information:.

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

.referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG.

Manual Integration No manual integrations were performed on data in this batch.

Additional Comments Additional comments were not required for this sample set.

Gualifier information Manual qualifiers were not required.

Method/Analysis Information 13

Product: AIphaspec Pu, 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: 572121 Prep Batch Number: . 570846 Dry Soil Prep GL-RAD-A-021 Batch Number: 570843 Sample ID Client ID) 172114001. 9530-0001 -008F 172114010. 9530-0001 -003F 1201191308 M*ethod Blank,.'VIB)'

1201191309 172114001(9530-0001-008F) Sample Duplicate (DUP) 172114001(9530-0001-008F) Matrix Spike (MS)

1201191310 Laboratory Control Sample (LCS)

SOP Reference .

Procedure for preparation,analysis and reportingof analytical data are controlled by General Engineering Laboratories, LLC as Standard 00erating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-01 I REV# 14.

Calibration Information:

Calibration Information All initial and continuing calibration requirements have been met.

Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s).

Sample Geometry All counting sources were prepared in the same geometry as the calibration standards.

Quality Control (OC) Information:

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

Designated QC The following sample was used for QC: 172114001 (9530-0001-008F).

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

14

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 HAS L-300, Pu- 11I-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-02 i Method: Dry Soil Prep Analytical Batch Number: 572122 Prep Batch Number: 570846 Dry Soil Prep GL-RAD-A-021 Batch Number: 570843 15

Sample ID Client ID 172114001 9530-0001-008F 172114010 9530-0001-003F 1201191311 Method Blank (MB) 1201191312 172114001(9530-0001-008F) Sample Duplicate (DUP) 1201191313 172114001(9530-0001-008F) Matrix Spike (MS) 1201191314 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 GLýRAD-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.

tQuality Control Qoc) Information:

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

Designated QC The following sample was used for QC: 172114001 (9530-0001-008F).

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

Technical Information:

Holding Time All sample procedures for this sample set were performed within the required holding time.

Preparation Information All preparation criteria have been met for these analyses.

Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis.

Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from 16

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: GammaSolid-FSS GAM & ALL FSS 226 Ingrowth Waived Analytical Method: EML HASL 300, 4.5.2.3 Prep Method: Dry Soil Prep Analytical Batch Number: 574334 Prep Batch Number: 570843 17

Sample ID Client ID 172114001 9530-00011-008F 172114002 9530-0001-01 OF 172114003 9530-0001-01 IF 172114004 9530-0001-012F 172114005 9530-0001-016F 172114006 9530-0001'-017F 172114007 9530-0001-018F

.172114008 9530-0001-001 F

.172114009 9530-0001-002F 172114010 9530-0001-003F 172114011 9530-0001-004F 1721140123 9530-0001-005F 172114013 9530-0001-006F 172114014 9530-0001-0-6FS 172114015 9530-0001-007F 172114016 9530-0001-009F 172114018. 9530-0001-013F 172114018 172114019 9530-0001-014F 172114020 9530-0001-014FS

9530-0001-015F 1201196533 Method Blank (MB) 1201196534 172114006(9530-0001.-01 7F) Sample Duplicate (DUP)

.1201196535 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP).The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-013 REV# 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.

Guality Control (OC) Information:

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

Designated QC The following sample was, used for QC: 172114006 (9530-0001-017F).

18

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 conuractuai documents. A nonconformance report (NCR) was not generated for this SDG.

Additional Comments Additional comments were not required for this sample set.

Qualifier information Qualifier Reason Analyte Sample U' Data rejected due to interference. Manganese-54 172114013 ui Data rejected due to low abundance. Cesium-134 172114001 1721.14002 172114006 172114012 172114013 172114015 172114019 Cobalt-60 172114017 Niobium-94 1201196534 Ul Data rejected due to no valid peak. Bismuth-2 12 172114005 Method/Analysis Information 19

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: 571177 Prep Batch Number: 570846 Dry Soil Prep GL-RAD-A-021 Batch Number: 570843

.Sample ID Client ID 9.30-0001-008F II7I0UUI 172114010 9530-0001-003F 1201189312 Method Blank (MB)

.1201189313 172114001(9530-0001-008F) Sample Duplicate (DUP) 1201189314 172114001(9530-0001-008F) Matrix Spike (MS) 1201189315 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 (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: 172114001 (9530-0001-008F).

QC Information 20

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.

Chemical Recoveries All chemical recoveries: meet the required acceptance limits for this sample set.

Miscellaneous Information:

NT.'

NCRDocumentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG.

Additional Comments Additional comments were not required for this sample set.:.

Oualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Tc99, Solid-ALLIFSS Analytical Method: DOE EML HASL-300, Tc-02-RC Modified Analytical Batch Number: 570932 Sample ID Client ID 172114001 9530-0001-008F 172114010 9530-0001-003F 1201188784 Method Blank (MB) 1201188785 172114001(9530-0001-008F) Sample Duplicate (DUP) 1201188786 172114001(9530-0001-008F) Matrix Spike (MS) 1-701188787 Laboratory Control Sample (LCS) 21

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-005 REV# 13.

Calibration Information:

Calibration Information.

All initial and continuing calibration requirements have been met.

Standards Information Standard solution(s) for these analyses are NIST traceable .and used before the expiration date(s).

Sample Geometry All counting sources were prepared in the same geometry as the calibration standards.

Quality Control (QC Information:

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

Designated QC The following sample.was used for QC: 172114001 (9530-0001-008F).

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

Technical Information:

Holding Time All sample procedures for this sample set were performed within the required holding time.

Preparation Information All preparation criteria have been met for these analyses.

Sample Re-prep/Re-analysis The batch was recounted due to a suspected blank false positive.

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.

22

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Fe55, Solid-ALL FSS Analytical Method: DOE RESL Fe-I, Modified.

Prep Method: Ash Soil Prep

.Dry Soil Prep GL-RAD-A-02 i Method: Dry Soil Prep Analytical Batch Number: 570929 Prep Batch Number: .570846 Dry Soil.Prep GL-RAD-A-021 Batch Number: 570843.

Sample ID Client ID 172114001 9530-0001 008F

.172114010 *9530-0001-003F 12011188775. Method Blank (MB).

1201188776: 1172114010(9530-00011-003F) Sample Duplicate (DUP) 1201188777 172114010(9530-0001-003F) Matrix Spike (MS) 1201188778 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 somces were prepared in the same geometry as the calibration standards.

Ouality Contrl (0C) Information:

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

23

Designated QC The following sample was used for QC: 172114010 (9530-0001-003F).

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 1201188775 (MB) and 1721 14001 (9530-0001-008F) were recounted due to the quench number being outside the calibration range.

Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced.SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG..

Additional Comments Additional comments were not required for this sample set.

Oualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Ni63, Solid-ALL FSS Analytical Method: DOE RESL Ni-I, Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 570930 Prep Batch Number: 570846 Dry Soil Prep GL-RAD-A-021 Batch Number: 570843 24

Sample ID Client ID 172!14001 9530-0001-008F 172114010 9530-0001-003F 1201188780 Method Blank (MB) 1201188781 172114010(9530-0001-003F) Sample Duplicate (DUP) 1201188782 172114010(9530-0001-003F) Matrix Spike (MS) 1201188783 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-022 REV# 8.

Calibration Information:

Calibration Information All initial and continuing calibration requirements have been met.

Standards Information Standard SOlution(s)for these analyses are NIST traceable and used before the expiration date(s).

Sample Geometry All counting sources were prepared in the same geometry as the calibration standards.

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: 172114010 (9530-0001-003F).

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 25

referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG.

Additional Comments Additional comments were not required for this sample set.

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product:. LSC, Tritium Dist, Solid-HTD2,ALL FSS Analytical Method: EPA 906.0 Modified Analytical Batch Number: 570933 Sample ID Client ID 172114001 9530-0001-008F 172114010 9530-0001 -003F,

. ... . 1 2 011887 8 8 Method Blank (MB):

1201188789 172114001:(9530-0001-008F) Sample Dupiicate :(DUP) 1201188790 1721.14001!(95.30-0001-:008F.) Matrix Spike (MS) 1201:188791 Laboratory Control Sample (LCS)

SOP Reference.

Procedure for preparation, analysis and reporting. of analytical data are controlled by General Engineering Laboratories, LLC asStandard 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 (OCt Information:

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

26

Designated QC The following sample was used for QC: 172114001 (9530-0001-008F).

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

Technical Information:

Holding Time All sample procedures for this sample set were performed within the required holding time; Preparation Information All preparation criteria have been met for these analyses.

Sample Re-prepfRe-analysis...

None of thesamples 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.

Oualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint C14, Solid AlI,FSS Analytical Method: EPA EERF C-01 Modified Analytical Batch Number: 570934 Sample ID Client ID 172114001 9530-0001 -008F 172114010 9530-0001-003F 1201188792 Method Blank (MB) 1201188793 172114010(9530-0001-003F) Sample Duplicate (DUP) 1201188794 1721 14010(9530-0001-003F) Matrix Spike (MS) 1201188795 Laboratory Control Sample (LCS) 27

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-003 REV# 8.

Calibration Information:

Calibration Information All initial and continuing calibration requirements have been met.

Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s).

Sample Geometry All counting sources were prepared in the same geometry as the calibration standards.

Quality Control(OC) Information:..

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

Designated QC The following sample. was used for QC: 1721140 (9530-70001-003F).

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.

28

Oualifier information Manual qualifiers were not required.

Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise: noted in the analytical case narrative.

Review Validation:.

GEL requires all analytical data to be verified by a qualified data validator. In addition, all data designated for CLP or CLP-like packaging will receive a third level validation upon completion of the data package.

The following data validator verified the information presented in this case narrative:

Reviewer/Date: 'LI~N 10Q-o 29

SAMPLE DATA

SUMMARY

30

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report for YANKOOI Connecticut Yankee Atomic Power Co.

Client SDG: MSR#06-1276 GEL Work Order: 172114 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 concent-rirat;on is not det cted a*b the detection ND The......analyte *,.. ,uo,, the detctionu, limfiit.

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 31

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 4. 2006

Contact:

Mr. Jack McCarthy Project:' Soils PO# 0(P-332.

Client Sample ID: 9530-00017-008F Project: YANK01204 SamplelD: 172114001 ClientlD: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 17.4%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mt Rad Alpha Spec Analysis Alphaspec A.241. Cm SolidlALL FSS Americium-241 U 0.0864 .4-/L0.105 0.0409 .+!-0.106 0.153 TC1 09/28/06 1156 572120 u .U0.00 +./-0.05153, 0.00 +/-0.0553 0.0765 p.CilgO Cirium9242 Curium -23/24, U 0.0664 */-w0.0911 0.0334 +/--0.0915 0 o138 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 U 0.102 +1-0.0996 0.0285 +/-0.100 0.118 pCi/0 TCI 09/28/06 0935 572121 Plutonium-239/240 U 0.062 +/-0.077. .0.0202 +/-0.0773 0.101 pCilga Liquid Scint Pti241, Solid-ALL FSS "

Plutonium-241 U 6.10 +/-8.99 7.27 +/-9.01 15.3 pCi/g TCI 09/29/06 2158 572122 Rad Gamma Spec Analysis Gainma,Solid-FSSGAM .& ALL FSS 226 Ingrowth Waived Actinium-228 0.837 +!-0.199 0.0592 +1-0.199 0.129 pci/ga MJHI 10/02/06 0545 574334 /

Americium-241 U -0.00443 +/-0.117 0.0646 +/-0.117 0.133 Bismuth-212 0.605 +/-0.281 0.150 +/-0.281 0.319

+/-0.114 0.0342 +/-0.114 0.0727 pCilgo Bismuth-214 0.635

+/-0.0308 0.0246 +/-0.0308 0.0522 pcilgC Cesium- 134 UI 0.00 0.133 +/-0.0359 0.0188 +/-0.0359 0.0401 pCi/g Cesium-137

+/-0.0201 0.0184 +1-0.0201 0.0407 pCi/g Cobalt-60 U 0.0125 U -0.0255 +--0.0596 0.0506 +/-0.0596 0.106 pCi/g EfropiUm-!52

+/-0.0802 0.0523 +/-0.0802 0.115 pCi/ga Europium-154 U -0.0496

+/-0.0758 0.0553 +/-0.0758 0.114 pCi/g Europium- 155 U 0.0653 0.816 +/-0.0879 0.0301 +/-0.0879 0.0625 pCi~q Lead-212 pCi/g0 Lead-214 0.666 +/-0.104 0.0355 +1-0.104 0.0746 Manganese-54 U 0.0204 +/-0.0255 0.0225 +/-0.0255 0.0478

+/-0.0207 0.0176 +1-0.0207 0.0375 pCi/ga Niobium-94 U 0.00376 Potassium-40 12.7 +/-1.23 0.159 +1-1.23 0357 pCi/g-Radium-226 0.635 +/-0.114 0.0342 +/-0.114 0.0727

+/-0.0199 0.0171 +/-0.0199 0.0362 pCi/g0 Silver-108m U 0.000126 Thallium-208 0.238 +/-0.0479 0.0198 +/-0.0479 0.0419 pCi/g Rad Gas Flow Proportional Counting GFPC.Sr90, solid-ALL FSS Strontium-90 U 0.00276 + /-0.00637 0.00516+/-0.00637 0.0111 pC'Jg- KSDI 09/29/06 2335 571177 5 Rad Liquid Scintillation Analysis "

LSC, Tritimn Dist, Solid-HTD2,ALL FSS Tritium U -5.59 +1-7.85 6.93 +1-7.85 DFAI 09/25/060210 570933 6 14.8 pCi/g 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 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-008F Protect: YANK01204.

Sample. ID: 172114001 Client ID: YANKOO I

.Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Ml Rad Liquid Scintillation Analysis Liquid Scint C14, Solid All, FSS Carbon-14 *U 0.00533 +/-0.0803 0.0671 +/-0.0803 0.142:. pCi/g AXD2 09/23/06 1427 570934.

Liquid Scint Fe55, Solid-ALL FSS Iron-55. .'. U 3.66 +1-45.4 31.9 44-45.4 66.3 pCi/g . MXPI 10/03106 0521 570929 Lqiaid Scint Ni63 Solid-ALL FSS Nickel-63 . .U 4.44 +/410.8 8.84. +/-i0.8 "18.6 pCi. " MXPI 09/25/06 1618 570930 1 Liquid Scint Tc99. Solid-ALL MSS Techtnetiunm-99 U. 0.0384 +/-0.285 0.238 .+/-0.285 0.491 pCi/* KXRI 09i29)/06 1617 570932 1 The following Prep Methods were performed Method Description Analyst -Date. " Time. Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1528 570843 The following Analytical Methods were performed. ...

Method Description 1 DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu-I I-RC Modified 3 DOE EML HASL-300, Pu-I I-RC Modified 4 EML HASL 300, 4.5.2.3 5 EPA 905.0 Modified 6 EPA 906.0 Modified 7 EPA EERF C-01 Modified 8 DOE RESL Fe-1, Modified 9 DOE RESL Fe-I, Modified 10 DOE RESL Ni-I, Modified 11 DOE EML HASL-300, Tc-02-RC Modified 12 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Alphaspec Am241, Cm, Solid ALL 92 (15%-125%)

Plutonium-242 Alphaspec Pu, Solid-ALL FSS 102 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Pu241, Solid-ALL Fý 96 (25%-125%)

Carrier/Tracer Recovery GFPC, SO9O, solid-ALL FSS 89 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Fe55, Solid-ALL FS 74 (15%-125%)

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 4, 2006

Contact:

Mr. Jack McCarthy

. Project: Soils PO#.002332 Client Sample ID: 9530-0001-008F Project: YANKO 1204 SamplelD: " *172114001 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU M])A Units DF Analyst Date Time Batch Mt Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 73 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Tc99. Solid-ALL FS 75 . (15%-125%)

Notes:

The Qualifiers in this report are defined as follows.:

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

> Resultis greater than value rep6rted 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 4Xor more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

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

34

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-01 OF Proiect: YANKO 1204 Sample ID: 172114002 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 12-SEP--06 Receive Date: 20-SEP-0-6 Collector: Client Moisture: 20.6%

Parameter.. Qualifier. Result Uncertainty LC TPU MtDA Units DF Analyst Date Time.Batch Mt, Rad Gamma Spec Analysis Gamtma Solid-FSS GAM & ALL FSS 226 Ingrowth Waived ActiniUm-228

0.708 +/-0.178 0.0507 ,+/-0.178 0.108 MJHI1 10/02/06.0545 574334 .1.

Americium-241 U -0.027 +/-0.125 0.0897 +/-0.125 0.185 pCi/g-Bismuth-212 0.501 +/-0.263 *0.114 +/-0.263 pCilg*

0.242 Bismuth-214 0.637 +/-0.0916 0.0323 +/-0.0916 0.0675 pCi/g Cesium- 134 UT 0.00 +/-0.0379 0.0214 +/-0.0379 0.0447 pCi/ga Cesium-137 0.134 +/-0.0319 0.0163 +4-0.0319 0.0343 pCi/g.:

0.0165 Cobalt-60 .U -0.00423. +/-0.0199 +/-0.0 199 .0.0356

.Europium- 152 U 0.00262 +/-0.0477 0.0407 +/-0.0477 pCi/g-0.0849.

Europium- 154 U -0.00925 +/-0.0555 0.0463 +/-0.0555 0.0997 pCi/g" Europium-155 U 0.0469 +/-0.0598 0.0524 +/-0.0598 0.108 pCi/g2 Lead-212 0.825 +/-0.0608 0.0233 +/-0.0608 0.0484 pci~a Lead-214 0.745 +/-0.0721 0.0279 +/-0.0721 0.0584 pug/.

Manganese-54 U 0.00196 +/-0.0197 0.0166 +/-0.0197 0.0351 pCug.

Niobium-94 U -0.004 +/-0.0166 0.0139 +/-0.0166 0.0294 pCilga Potassium-40 13.4 +/-0.858 0.155 +/-0.858 0.336 pGig.

Radium-226 0.637 +/-0.0916 0.0323 +/-0.0916 0.0675 pCi/ga Silver-108m U 0.000472 +/-0.0173 0.0145 +/-0.0173 0.0303 Thallium-208 0.258 +/-0.0406 0.0165 +/-0.0406 0.0347 pCU.g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch D*y Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 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

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

< Result is less than value reported 35

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address :. 362lnjun Hollow Rd.

East Hampton, Connecticut 06424 Report Date: October 4. 2006

Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID. . 9530-0001-OIOF Proiect: YANK01204

- Sample ID:. . 172114002 Client ID:

Vol. Recv.: YANK001:

P rQualifier Result Usncertatinty LC TIPU M4DA Units DF Analyst Date Time Batch Mt

> 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 hasý 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 .Anilyte 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.

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 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO#.002332 Client Sample ID.: 9530-0001-01 IF Project: .YANK01204 Sample ID: 172114003 Client ID: YANK001 Matrix:' .

TS . Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 11.2%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch. Wt Rad Gamma Spec Analysis Gammiia,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived:

Actinium:-228 -0.816 +/10..157

+/-0.0808 0.0536 +/-1+0.157 *0.11.5 pCi/g1 MJHI 10/02/06 0545 574334 1

Americiuni-241I 0.0626 U -0.0t65 +/-0.0808 0,129 pCi/g Bismuth-212 0.561 .:+/-0.285 0.109 * +/-0.285 0.234 pCi/g Bismuth-214 0.596 +/-0.0795 0.0286 +/-0.0795 0.0604 pc/ga Cesium-1 34 U 0.0341 +/-0.0241 0.0202 +/-0.0241 0.0426 pCi/ga Cesium-137 0.106 +/-0.0332 .0.0155 +/-0.0332 0.033 pCi/gý Cobalt-60 U 0.0186 .+/-0.019 0.0171 +/-0.019 0.037 pCi/g0 Europium- 152 U -0.0191 +/-0.0484 0.0406 +/-0.0484 0.0851 pCi/g.

Europium-I154 U 0.00749 +/-0.0603 0.0501 +/-0.0603 0.108 pCi/ga Europium- 155 U 0.0765 +/-0.0734 0.0456 +/-0.0734 0.0946 pCilga Lead-212 0.826 +/-0.0624 0.0286 +/-0.0624 0.0591 pcdgý Lead-214 0.717 +/-0.0882 0.0295 +/-0.0882 0.0618 pCi/gý Manganese-54 U 0.00106 +/-0.0198 0.0169 +/-0.0198 0.0358 pCilka Niobium-94 U 0.0268 +/-0.0248 0.0157 +/-0.0248 0.0332 pCilga Potassium-40 13.1 +/-0.809 0.110 +/-0.809 0.249 pCi/g Radium-226 0.596 +/-0.0795 0.0286 +/-0.0795 0.0604 pCil.G Silver-108rn U -0.00573 +/-0.0161 0.0133 +/-0.0161 0.0281 pCi/g Thallium-208 0.259 +/-0.0534 0.0162 +/-0.0534 0.0341 pci/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

A quality control analyte recovery is outside of specified acceptance criteria

< Result is less than value reported 37

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-01 IF Proiect: YANKO 1204 Sample ID: 172114003, Client ID. YANK001 Vol. Recv.:

Parameter QuaIifer Result U.n...ce.ta., TPU lvfA Units DF Analyst Date Time Batch Mt

> 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 +I-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.

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 4,2006

Contact:

Mr. Jack McCarthy, Project:: Soils PO# 002332 Client Sample ID: 9530-0001-012F Project: YANKO 1204 Sample ID:. .17211.4004 Client ID:. YANK001 TS : Vol. Recv.:

Matrix:

Collect Date: 12-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 14.7%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mt, Rad Gamma Spec Analysis GamnmaSolid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.917 +/-0.182 0.0648 +/'0.182 0.140 pCi/ag MJH I 10/02/060649 574334 I

Americium-241 U -0.308 +1-0.126 0.0856 +/-0.126 00A76 pci/g.

Bismuth-212 0.617 .+1-0.267 0 151 +/-0;267 0.322 pCi/g Bismuth-2 4 0.567 +/-0.117 0.0376 +/-0.117 0.0796 0041 Cesium- 134 U 0.0476 +/-0.0403 0.0263 +/-0.0403 0.0557 pCi/g Cesium-137 0.085 +/-0.0526 0.0245 +/-0.0526 0.05 15 p04g Cobalt-60 U 0.00907 "+/-0.0268 0.0227 +/-0.0268. 0.0495 pCi/g Europium- 152 U. -0.108 +/-0.0688 0.0511 +/-0.0688 .0.107 pCi/g Europium- 154 U -0.0462 +/-0.0829 0.0521 +/-0.0829 0.116 pCi/ga Europium-155 U 0.00678 +/-0.0727 0.062 +/-0.0727. 0.128 pCi/g(

Lead-212 .0.841 +/-0.0715 .0.0325 +/-0.0715 0.0672 Lead-2 14 *0.603 +/-0.0938 0.0388 +/-0.0938 0.0811i pCiig-Manganese-54 U 0.0123 +/-0.026 0.0225 +/-0.026 0.0478 pCi/g Niobium-94 U -0.0179 +/-0.0268 0.0182 +/-0.0268 0.0387 pCi/g0 Potassium-40 13.2 +/-1.05 0.184 +/-1.05 0.409 pCi/ga Radium-226 0.567 +/-0.117 0.0376 +/-0.117 0.0796 pci/g Silver-108m U -0.0113 +/-0.0237 0.0186 +/-0.0237 0.0391 pCi/ga Thallium-208 0.280 +/-0.0515 0.0206 +/-0.0515 0.0435 pCi/gý The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

A quality control analyte recovery is outside of specified acceptance criteria

< Result is less than value reported 39

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy .

Project: Soils PO# 002332 Client Sample ID: 9530-0001-012F Project: YANKO 1204 Sample ID: 172114004 Client ID: YANKOO I Vol. Recv.:

I a..a..... vua,,u.fie Result Uncertainty LC TFU INDA Units DF Analyst Date Time Batch Mt,

> 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/IIlS 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.

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 4, 2006

Contact:

Mr. Jack McCarthy

.Project: Soils PO# 002332 .

.Client.Sample ID: 9530-0001-016F Proiect* YANKO 1204 Sample ID: 172114005 Client ID: YANKOO L.

"TS Vol. Recv.:

Matrix:

Collect Date: 12-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 12.9%

Parameter Qualifier Result Uncertainty LC. TPU NIDA Units DF Analyst Date Time Batch Mt, Rad Gamma Spec Analysis

.Gamma,Solid-FSS GAM & ALL FSS.226 hlgrowth.

Waived Actinium-228 0.839 +/-0.188 0.0649 +/-0.188 .-0.142. pCi/g. MJHI 110/02/06 0650 574334 1 Americium-241. U 0.0204 +/-0.0268: 0.0234 +/-0.0268 -0.0484 pCi/g Bismuth-212 -UI 0.00 +/"0.472 0.148 +/-0.472 *0.320 pCi/g Bismuth-214 0.588 +/-0.106 0.0347 +/-0.106 0.0744 pCilg Cesium- 134 U 0.0533 +/-0.0306 0.0266 +/-0.0306 0.0566 pCi/g Cesium-137 0.0961 +/-0.0563 0.0226 +/-0.0563, 0.0481 pCi/g

.Cobalt-60 U 0.00495 +/2-0.0235 0.0201 *+/-0.0235 0.0448 pCi/g Europium-152 U -0.00205 +/-0.0566 0.0466 +/-0.0566 0.0983 pCi/ga Europium-154 U -0.0049 +/-0.0823 0.0681 +/-0.0823 0.149 pCi/ga Europium- 155 U 0.0338 +/-0.0444 0.0411 +1-0.0444 0.0854 pCi/g, Lead-212 0.808 +/-0.0642 0.0262 +/-0.0642 0.0546 pCi/g0 Lead-214 0.539 +/-0.0909 0.0347 +!-0.0909 0.0731 pCi/gU Manganese-54 U -0.00139 +/-0.023 0.0188 +/-0.023 0.0407 pCi/g9 Niobium-94 U -0.0112 +/-0.0237 0.019 +/-0.0237 0.0406 pCi/gC Potassium-40 11.8 +/-1.02 0.184 +/-1.02 0.414 pCi/gC Radium-226 0.588 +/-0.106 0.0347 +/-0.106 0.0744 pCil/a Silver-108m U 0.00216 +/-0.0185 0.0162 +/-0.0185 0.0345 pCi/g0 Thallium-208 0.276 +/-0.0541 0.0174 +1-0.0541 0.0375 pCi/.G The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09P20/06 1536 570843 The following Analytical Methods were performed Method Description EML HASL 300,4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

A quality control analyte recovery is outside of specified acceptance criteria

< Result is less than value reported 41

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 4, 2.006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332.

Client Sample ID: 9530-0001-016F Project: YANK01204 SaimpleID." 172114005 Client ID: YANK001 Vol. Recv.:

Paraueter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mt

> Result is greater than value reported,

.A The TIC is a suspected aldo!-condensation product B Target analyte was detected in the associated blank.

3BD, 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 MIDL, MDA, or LOD.

UT Gamma Spectroscopy-Uncertain identification X ConstultCase Narrative, Data Summary package, or Project Manager concerning this qtualifier Y: QC Samples were not spiked with this compound

^ RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.

42

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4. 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-017F. Project: YANKO 1204 Sample ID: 172114006 Client ID: YANK0 t Matrix: TS Vol. Recv.:

Collect Date: 12-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 14.2%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mt Rad Gamma Spec Analysis GaonmaSolid-FSS GAM & ALL FSS 226 Ingrowth Waivedý Actinium-228 0.828 +/-0.191 0.0683 +/-0.191 0.149 pci/g MJH 1 10/02/060650 574334 Americium-241 U -0.0107 1/-0.0746 0.0601 +/-0.0746 0.125 pCi/g Bismuth-212 0.881 4/-0.459 0.126 +1-0.459 0.276 pCilg Bismuth-214 0.612 +1-0.130 0.0327 +/-0.130 0.0707 pCi/g Cesium-134 UI 0.00 +/-0.0376 0.028 +/-0.0376 0.0597 pCi/g Cesium-137 0.182 +/-0.0483 0.021 +1-0.0483 0.0451 pCi/g Cobalt-60 U -0.00988 +/-0.0263 0.0211 +/-0.0263 0.047.1 pCi/g Europium- 152 U 0.0683 +/-0.0624 0.055 +/-0.0624 0.116 Europium- 154 U 0.104 k/-0.0885 0.0671 +/-0.0885 0.148 pCi/g Europium- 155 U 0.0308 - /-0.0643 0.0522 +/-0.0643 0.109 pCi/g Lead-212 0.882 +/-0.0991 0.0264 +/-0.0991 0.0555

. 0.857 pCilg Lead-214 +/-0.131 0.0339 +/-0.131 0.0721 pci/g Manganese-54 U 0.000152 k/-0.0265 0.022 +/-0.0265 0.0474 Niobium-94 U 0.0279 +/-0.0215 0.0199 +1-0.0215 0.0426 pCi/g Potassium-40 13.3 +/-1.37 0.229 +/-1.37 0.507 Radium-226 0.612 +/-0.130 0.0327 +/-0.130 0.0707 pC.g Silver-108m U -0.00885 -l-/-0.0202 0.0156 +/-0.0202 0.0335 pCi/g Thallium-208 0.282 -I4/-0.0618 0.022 +/-0.0618 0.0469 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 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 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 lnjun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-017F . Proiect: YANK01204 Sample ID: 172114006 ClientID: YANK00I Vol. Recv.:

Parameter Qualifler Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mt

> Restlt is greater than value reported A The TIC is a stspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MIDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis Di 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 Consu.lt Case Narrative, Data Summary package, or Project Managerconcerning 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.

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 HollowRd East Hampton. Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy.

Project: Soils PO# 002332 Client Sample ID: 9530-0001-018F Project: YANKO 1204 Sample. ID: 172114007 Client ID: YANK001 Matrix: . TS Vol. Recv.:.

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 14.8%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mt Rad Gamma Spec Analysis Gainina,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.945 +/-0.238 0.0832 +/-0.238 0.166 pCi/gC MJHI 10/02/06 0659574334 Americium-241 U 0.0923 4/-0.096 0.0737 +/-0.096 0.147 pCi/gý Bismuth-212 0.675 +/-0.431 0.165 +/-0.431 0.330 pCi/g Biismuth-214 0.732 +/-0.138 0.0413 +1-0.138 0.0825 pCi/g Cesium- 134 U 0.0349 +/-0.0373 0.0288 +/-0.0373 0.0575 pCi/9 Cesium- 137 0.167 +/-0.0399 0.0254 +/-0.0399 0.0507 pCi/g-Cobalt-60 U -0.00764 +/-0.0307 0.0244 .+/-0.0307 .0.0488 pu~g Europium-152 U -0.0133 +/-0.0753 0.0589 +/-0.0753 0.118 pCila Europium-154 U -0.00119 +/-0.0954 0.0784 +/-0.0954 0.157 pCi/g9 Europium-155 U 0.063. +/-0.0773 0.0658 +/-0.0773 0.132 pCi/g

+/-0.i 13 Lead-212 0.991 +/-0.113 0.0356 0.0712 pCi/g Lead-214 0.806 +/-0.124

0.042 +/-0.124 0.084 pCi/g Manganese-54 U -0.0134 +/-0.0253 0.0203 +/-0.0253 0.0405 pCWlg Niobium-94 U -0.0159 +/-0.0516 0.0222 +/-0.0516 0.0443 pQi/g Potassium-40 13.2 +/-1.34 0.214 +/- 1.34 0.428 PC i/ku Radium-226 0.732 +/-0.138 0.0413 +/-0.138 0.0825 pCi/.G Silver-108m U 0.0122 +/-0.0263 0.0225 +/-0.0263 0.045 pCi/g Thallium-208 0.272 +/-0.0551 0.023 +/-0.0551 0.046 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 The following Analytical Methods were performed Method Description EML HASL 300,4.5.2.3 Notes:

The Qutalifiers in this report are defined as follows:

A quality control analyte recovery is outside of specified acceptance criteria

< Result is less than value reported 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 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils.PO# 002332 Client Sample ID: 9530-0001-018F Project: YANK01204 Sample.ID: 172114007 . .Client ID: YANKOOI Vol. Recv.:

P,.,reter t..Qualif,*r Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mt

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

UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary package,,or Project Manager concernino 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.

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 Injuri Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-001IF Proiect: YANKO 1204 Sample ID: 172114008

Client ID: YANKOOI '

Matrix: TS Vol. Recv.:

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 12.9%

Parameter Qualifier . Result Uncertainty LC TPU ,IDA Units DF Analyst Date Time Batch. Mt Rad Gamma Spec Analysis Gam'oa,Solid-FSS GAM & ALL FSS 226 Ingrowth Waiwed Actinium-228 ... :. 0.738 +/-0;227 0.0713 +/-0.227 0.143 MJHI 10/02/06.0700 574334 .]

+/-0.104 0.0784 *+1-0.104 0.157'

.pcilg pCi/g Americium-24l .U -0.015 B ismuth-212 0.645 +/-0.283 0.170 +/-0.283 0.340 pCig Bismuth-214 0.502 +/-0.108 0.0376 +/-0.108 0.0751 pci/g pCi/g Cesium- 134 U 0.0168 +/-0.0257 0.0246 +/-0.0257 0.0492 pCt/g

.Cesium- 137 +/--0.0406 0.0215 +/-0.0406 0,0429 Cobalt60. U 0.0131 +1-0.025 0.0215 .+/-0.025 0.0429 pci/..

pCi/g0 pCi/g Europium- 152 U 0.0626 +/-0.0822 0.0536 +/-0.0822 0.107 pCi/g Europium-I 54 U 0.0345 +/-0.0817 0.0713 +1-0.0817 0.143 Europium- 155 U 0.0739 +/-0.0872 0.0598 +/-0.0872 0.120 pCi/g Lead-2 12 0*685 +/-0.0908 0.0323 +/-0.0908 0.0646 pCi/g Lead-214 0.624 +/-0.109 0.0365 +/-0.109 0.0729 pCi/g Manganese-54 U 0.00591 +/-0.0242 0.0212 +/-0.0242 0.0423 pci/g Niobium-94 U 0.000794 +/-0.0233 0.0194 +/-0.0233 0.0388 pCi/g Potassium-40 11.8 +/-1.22 0.190 +/-1.22 0.379 pCi/g Radium-226 0.502 +/-0.108 0.0376 +/-0.108 0.0751 Silver-108m U 0.0163 +/-0.022 0.0196 +/-0.022 0.0392 pCi/0g Thallium-208 0.217 +/-0.0523 0.0203 +/-0.0523 0.0407 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 The following Analytical Methods were performed Method Description EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows

A quality control analyte recovery is outside of specified acceptance criteria

< Result is less than value reported 47

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 lnjun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID:.. 9530-0001-001F Proiect: YANK01204 Sample ID:. 172114008 ClientID:. YANKOO I Vol. Recv.:

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

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

BD Results are either below the MDC .ortracer recovery is low C Analyte has been confirmed by, GC/MS analysis D Resultsare reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike, recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U . Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

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

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 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001 -O02F Project: YANKO 1204 Sample ID: 172114009 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 8.53%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mt Rad Gamma Spec Analysis Gamma.Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.696 +/-0.268 0.1*14 +/:0.268 0.227 pCi/g MJHI 10/02/06 0812 574334 Americium-24 I U -0.00484, +/-0.0496 0.0407 +/-0.0496 0.0813 pCi/g Bismuth-212 0.561 +/-0.449 0.204 +/-0.449 0.407 pCi/g

+/-0.137 +/-0.137 pCi/g Bismuth-214 0.653 0.0605 0.121 pci/gC Cesium- 134 U 0.00964 +/-0.0411 0.0364 +/-0.0411 0.0727 pCilg' Cesium-137 0.127 +1-0.0449 0.0255 +/-0;0449 0.0509 pci/g Cobalt-60 U -0.0357 +/-0.0455 0.0329 +/-0.0455 0.0658 pCi/g Europium- 152 U -0.0113. +/-0.0985 0.069 +/-0.0985 0.138 pCi/g Europium- 154 U 0.0778 +/-0.218 0.112 +/-0.218 0.225 pCi/g Europium- 155 U 0.0536 +/-0.0919 0.0584 +/-0.0919 0.117 pCi/g Lead-212 0.696 +/-0.0999 0.0395 +/-0.0999 0.0789. pCilg Lead-214 0.578 +/-0.122 0.0501 +/-0.122 0.100 pCi/g Manganese-54 U -0.0312 +/-0.0368 0.0284 +/-0.0368 0,0567 pCi/,g Niobium-94 U -0.02P59 +/-0.0337 0.0271 +/-0.0337 0.0541 pCi/g Potassium-40 9.66 +/-1.29 0.190 +1-1.29 0.380 pCi/g Radium-226 0.653 +/-0.137 0.0605 +/-0.137 0.121 pCi/g Silver-108m U 0.0283 +/-0.0287 0.0266 +/-0.0287 0.0531 pCi/g Thallium-208 0.277 +/-0.0706 0.0276 +/-0.0706 0.0552 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 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 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 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 0023.32 Client Sample ID: 9530--0001--002F Project: YANKO 1204 Sample D:. 172114009 Client ID: YANKOOI Vol. Recv.:

Parameter Qualifier Result Uncertainiy LC. Ift, MDA Units DF Analyst Date Time Batch Mt

> 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 compotnd 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.

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 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001 -003F ' Project" YANKO1204 Sample ID: 172114010 Client ID: YANKOO I Matrix: : : TS Vol. Reckv.:

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector Client Moisture: 14.3%

Parameter. Qualifier Result Uncertainty, LC, TPU MDA Units DF Analyst Date Time Batch Mt, Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-24 I U 0.0467 +/-0.0757 0.0244 +1-0.0759 0.123 TCt 09/28/06 1156 572120 I Curium-242 U 0.00 ,+/-0.0582 .0.00 +/-0.0582 0.0804 pCi/ga

.. Curium-243/244. U -0.0131 +/-m0.0564 0.0346, +/-0.0564 0.143, pCi/ge Alphaspec Pu, Solid-ALL FSS Plutonium-238 U -0.11 +/-0.141 0.148 +/-0.141 0.369 pCi/ra TCI 09/28/06 0935 572121 2 Plutonium-239/240 U 0.0343 +/-0.0774. 0.0416 +4-0.0775 0.156 pCi/g-Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U 0.294 +/-9.99 8.37 +/-9.99 .17.6 TCI 09/29/062214 572122. 2 Rad Gamma Spec Analysis Gamima,Solid-FSS GAM & ALL FSS 226 Ingrowth pCi/g Waived Actinium-228 0.714 +1-0.158 0.0691 :4-0.158 *0.150 MJHI 10/02/06 0918 574334 4 Americium-241 U -0.0786 +/-0.119 0.0887 +/-0.119 0.185 Bismuth-212 0.614 +/-0.320 0.151 +/-0.320 0.325 pCi/g-Bismuth-214 0.576 +/-0.109 0.0354 +/-0.109 0.0757 pCilg Cesium-134 U 0.0352 +/-0.0251 0.0238 +4-0.0251 0.0511 pCi/ga Cesium-137 0.259 +1-0.0505 0.0182 +/-0.0505 0.0392 pCilg Cobalt-60 U-0.000206 +/-0.0228 0.0191 +4-0.0228 0.0429 pCi/gC Europium-152 U -0.021 +/-0.0606 0.0493 +/-0.0606 0.104 pCi/g Europium- 154 U 0.00953 +/-0.0662 0.0569 +1-0.0662 0.126 Europium- 155 U 0.0328 +/-0.0592 0.055 4-0.0592 pu~g 0.114 Lead-212 0.849 +/-0.0694 0.0292 +/-0.0694 0.061 pCt/g0 Lead-214 0.582 +/-0.102 0.0344 +1-0.102 0.0727 pCi/g0 Manganese-54 U 0.00343 +/-0.0221 0.0186 +/-0.02221 0.0404 Niobium-94 U 0.012 +/-0.0206 0.0183 +1-0.0206 0.0391 pCi/ga Potassium-40 12.6 +/-0*952 0.143 +1-0.952 0.334 Radium-226 0.576 +/-0.109 0.0354 W/-0.109 0.0757 pCilg.

Silver-108m U 0.00762 +/-0.0187 0.017 4t--0.0187 0.0361 pCi/ga Thallium-208 0.275 +/-0.0532 0.0172 4/-0.0532 0.0371 pCilk Rad Gas Flow Proportional Counting.

GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00833 +/-0.00781 0.00603 +--0.00781 0.0129 pCilýg KSDI 09/29/06 2335 571177 5 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid-HTD2,ALL FSS Tritium U -1.52 +1-6.64 5.67 +1-6.64 12.1 pCi/g DFAI 09/25/06 0226 570933 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 4, 200.6

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-003F Project: YANK01204 172114010:* Client ID:.* YANK001 Sample ID:

Vol. Recv.:

Pararneter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Nil Rad Liquid Scintillation Analysis Liquid Scint C14, Solid AIIFSS Carbon- 14 U 0.00 +/-0.0813 0.0682 +/ý0.0813 0.145 pCi/g AXD2 09/23/06 1509 570934 Liquid Scint Fe55, Solid-ALL FSS iron-55 " U 12.2 +/-25.2 17.2 +/-25.2 36.0 pCig/ MXPI 09/27/06 1330 570929 Liquid ScintNi63, SolidýALL FSS Nickel-63 U -5.95 +/-10:8 9134 +/-10.8: 19.6 pCi/ .c MXPI. 09/25/06 1634 570930 Liquid Scint Tc99. Solid-ALL FSS Technetiumn-99 U -0.0782 +/-4.274. 0.232 +/-0.274 0.478 pC ilg KXRI 09/29/06 1634 570932 1 The following Prep Methods were performed Method Description Analyst . Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu-I I-RC Modified 3 DOE EML HASL-300. Pu-I I-RC Modified 4 EML HASL 300,4.5.2.3 5 EPA 905.0 Modified 6 EPA 906.0 Modified 7 EPA EERF C-01 Modified 8 DOE RESL Fe-1, Modified 9 DOE RESL Ni-1, Modified 10 DOE EML HASL-300, Tc-02-RC Modified 1I DOE EML HASL-300,. Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Alphaspec Am241, Cm, Solid ALL 96 (15%-125%)

Plutonium-242 Alphaspec Pu, Solid-ALL FSS 87 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Pu241, Solid-ALL FS 84 (25%-125%)

Carrier/Tracer Recovery GFPC, SOO, solid-ALL FSS 79 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Fe55, Solid-ALL FS 70 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 74 (25%-125%)

52

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 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: -9530-0001-003F " Project: YANKO 1204.

Samlple ID: 172114010 ClientilD: YANK00 I Vol. Recv.:.

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mt Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 76 (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 Analytehas 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, IvIIDA, 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 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample iD': 9530-0001-004F Proiect: ..YANK01204 Sample ID:., 172114011 ClientTD: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 15;5%

Parameter Qualifier Result Uncertainty LC TPU . MDA Units DF Analyst Date Time Batch Mt Rad Gamma Spec Analysis

.Ganuma,Solid- FSS GAM & ALL FSS 226 higrowth Waived Actinium-22: , 1.02 .+/-0.178 .0.0716 * +/-0.178 %.0.156 *pCi/g MJHI 10/02/06.091.9.574334-. 1.

0.0292 +/-0.036 0.0602 pCilg Americium 241 U 0-000195 +1-0.036 Bismuth-212 0.578 +/-0.394 0.171 +/-0.394 0.366 pCi/ga Bismuth-214 0.622 +/-0.121 0.0425 +/-0.121 0.0903 pCi/i Cesium-134 U. 0.0251 .+/-0.0353 0.0279 +/-0.0353 0.0596 Cesium- 137 0.131 +/-0.0653 0.0215 +/-0.0653 0.0462 pCi/g0

+/-0.0291 0.026 +/-0.0291 0.057 Cobalt-60 U 0.0147 pCilga Europium-152 U -0.0169 +/-0.0581 0.0504 +/-0.0581 0.106 pCi/g0 Europium-154 . U .0.00939 +/-0.0825 0.0707 .+/-0.0825 0.155 Europium-155 U 0.0221 +1-0.0577 0.0515 +/-0.0577 0.107 pCi/g

'Lead-212 0.985 +/-0.0757 0.0308 +/-0.0757 0.0642 0.0375 +/-0.108 0.079 pci/g-Lead-214 0.689 +/-0.108 Manganese-54 U 0.0214 +/-0.0294 0.0259 +/-0.0294 0.0553 0.0193 +/-0.0236 0.0414 pCilg0 Niobium-94 U -0.00774 +/-0.0236

+/-1.12 0.186 +/-1.12 0.421 pCi/gU Potassium-40 14.8 0.0425 +/-0.121 0.0903 pCilgC Radium-226 0.622 +/-0.121 Silver-108m U -0.0104 +/-0.0227 0.0191 +/-0.0227 0.0405 pci/g_

Thallium-208 0.264 +/-0.0635 0.0208 +/-0.0635 0.0446 pCi/gU The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/2t0/06 1536 570843 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 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 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO#.002332 Client Sample ID:, 9530-0001-004F Proiect: YANK01204 SamplelD: 172114011 ClientID: YANKOO I Vol. Recv.:

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

> 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 is0low C Analyte has been confirmed by: GC/MS analysis- :

D Results are reported froma 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.corn Certificate of Analysis Company : Connecticut Yankee Atomic Power.

Address : 362 lnjun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4.2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332:

Client Sample ID: 9530-0001 -005F Proiect: YANK01204 Sample ID: 172114012- Client ID:. YANKO01 Matrix: TS Vol. Recv.:

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 7.95%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Ml Rad Gamma Spec Analysis GamrnaSolid-7FSS GAM & ALL FSS 226 higrowth Waived Actinium-2281 0.486 +1-0.139 0.0523 +/-0.139 0.114 pCi/g MJHI 10/02/06 0919 574334

.Americiuim-241 U -0.0773 +/=-0.0839 0.0672 +/-0.0839 0.139 pCi/g Bismuth-212 0.380 +/-0.185 0.125 +/-0.185 0.268 pCi/g Bismuth-214 0.475 +/-0.0791 0.0275 +/-0.0791 0.0589 pCi/g Cesium-134 UI 0.00 +/-0.0296 0.021 +/-0.0296 0.0446 pCi/g Cesium-137 0.0485 +/-0.024 0.0172 +/-0.024 0.0367 pCi/g Cobalt-60 U ý-0.0011 +/-0.0185. 0.0154 +/-0.0185 0.0343 pCi/g Europium-152 U --. 0439 +/-0.0462 0.039 +/-0.0462 0.0824 pCi/g EuropiLIm-154 U 0.00551 +/-0.0535 0.0457 +/-0.0535 0.101 pCi/g Europium-t55 U 0.0377 +/-0.0494 0.0463 +/-0.0494 0.096 pCi/g Lead-212 0.626 +/-0.0591 0.023 +/-0.0591 0.0481 pCi/g Lead-214 0.462 +/-0.0792 0.0295 +/-0.0792 0.0622 pCi/g Manganese-54 U -0_0(439 +/-0.0218 0.0163 +/-0.0218 0.035 pCi/g Niobium-94 U -0.00642 +/-0.0165 0.0134 +/-0.0165 0.0289 pCi/g Potassium-40 11.2 +/-0.824 0.153 +/-0.824 0.341 pCi/g Radium-226 0.475 +/-0.0791 0.0275 +/-0.0791 0.0589 pCi/g Silver-108m U -0.00535 +/-0.0152 0.013 +/-0.0152 0.0278 pCi/g Thallium-208 0.225 +/-0.042 0.0121 +/-0.042 0.0262 pCi/g The following Prep Methods were perforned Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD--A-021 LXM2 09/20/06 1536 570843 The following Analytical Methods wert performed Method Description EML HASL 300, 4.52-3 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 4, 2006

Contact:

Mr. Jack McCarthy Project:, Soils.PO# 002332.

Client SamplelD: . :.9530-0001-005F Proiect: YANKO 1204 Sample ID: 172114012 Client lID: YANKKOO Vol. Recv.:.

Pai'ajete," Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mt,

> Result is greater thanvalue reported A The TIC is a suspected aldol-condensation product.

B Target analyte was detected in the associated blank:

BD Result is 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 4. 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-006F Proiect: YANKO 1204 Sample ID: 172114013 Client ID: 'YANK00 II" Matrix: TS Vol Recv.:

Collect Date: 08-SEP-06.

Receive Date: 20-SEP-06 Collector: Client Moisture: 11.7%

Parameter Qualifier Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch Mt Rad Gamma Spec Analysis GammaSolid-FSS GAM &ALL FSS 226 Ingrowth Waived' Actinium-228 0.680 +/-0.162 0.0598 +/-0.162 0.1:29 pCi/g MJHI 10/02/06 0920 574334 Americium-241 U ,0.014 +/-0.0793 0.0622 +/-0.0793 0.128 .pCi/-

Bismuth-212 0.558 +/-0.261 0.139 +/-0.261 0.298 pCi/g Bismnuth-2l4 0.573 '+/-0.0981 0.0327 +/-0.0981 0.0696 pCi/g CesiuIm-134 UI 0.00 +/-0.0311 0.0234 +/-0.0311 0.0496 pCi/g Cesium-137 . 0.121 +/-0.0276 0.0199: +/-0.0276 0.0423.: pCilg Cobalt-60 :U 0.00766 +/-0.0243 0.0187. +/-0.0243 0.0413. pCi/g Europium-152 U 0.0263 . +/-0.0669 0.0524 +/-0.0669 0.109 pCi/g.

Europium-154 U -0.00581 -/-0.0716 0.0516 +/-0.0716 0.114 pCi/g EuropiIm7-155 U 0.00914 +/-0.0614 0.0537 +/-0.0614* 0.111 pCi/g Lead-212 0.803 +/-0.0853 0.0278 +/-0.0853 0.0578 pCi/g Lead-214 0.584 +/-0.120 0.0342 +/-0.120 0.0718 pCi/g Manganese-54 UI 0.00 +/-0.0294 0.0184 +/-0.0294 0.0394 pCiig Niobium-94 U -0.0003 +/-0.0202 0.017 +/-0.0202 0.0362 pCi/g Potassiuim-40 12.7 +/-1.14 0.118 +/-1.14 0.275 pCi/g Radium-226 0.573 +/-0.0981 0.0327 +/-0.0981 0.0696 pCi/g Silver-I08m U -0.00575 +/-0.0199 0.0169 +/-0.0199 0.0357 pCi/g Thallium-208 0.215 +/-0.0463 0.0168 +/-0,0463 0.0358 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 The following Analytical Methods were performed Method Description EML HASL 300,4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

A quality control analyte recovery is outside of specified acceptance criteria

< Result is less than value reported 58

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.comr Certificate of Analysis Company: Connecticut Yankee Atomic Power

Address.: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact: Mr. Jack McCarthy

Project:. Soils PO# 002332 Client Sample ID: 9530-0001-006F Proiect: YANKO01204

- Sample ID: 172114013 . ClientID: YANK001 Vol. Recv.:.

Para,meter Qualifier Result Uncertainty LC TPU M,)A Units DF Analyst Date Time Batch Mt

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B1 Target analyte wasdetected in the associated blank BD Results are either below the MDC or tracerrecovery 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 do0*not apply. Sample concentration exceeds spike concentration by 4X or more

.R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

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

59

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton., Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332.

Client Sample ID: 9530-0001-0306FS Proiect: YANK01204 Sample ID: 172114014 Client ID' YANK001 Matrix: TS: Vol. Recv.:

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 11.7%

Parameter Qualifier Result Uncertainty LC TPU .MDA Units. DF Analyst Date Time Batch Mt Rad Gamma Spec Analysis Gamma.SoliM-FSS GAM & ALL FSS 2261hgrowth:

Waiwed.

Actinium-228 0.926 .+1-0.246 0.104 .+/-0.246 .. 0.221 pCi/g MJH1 I0/02/0609201574334 Americium-241 U -0:0132 +/-0.0396 0.0331 +/-0.0396 ..0.0683 Bismuth92.12 0.646 - +1-0.345 0.196 +/-0.345 0.418 pCi/g 0.052 pCqg Bismuth-214 .0.585 +1-0.128 +/-01t28 0.110 pCi/g Cesium- 134 U 0.0555 +/-0.0388 0.0355 +/-0.0388 0.0749 pCi/g 0.0307 .0.0647 Cesium.137 0.124 +/-0.0454 +/-0.0454 pCi/g Cobalt-60 U 0.0178 +/-0.0345 0.0302. +/-0.0345 0.0655 pCi/g Europium-152. U -0.00696 +/-0.076 0.0627 +/-0.076 0.131 pCi/g Europium-154 U -0.0305 +/-0.0976 0.0786 +/-0.0976 0.171 pCi/g Europium-I155 U 0.0424. +/-0.0757. 0.0551 +/-0.0757 0.114 pCi/g Lead-212 '0.684 +/-0.0847* 0.0486 .+/-0.0847 0.100 Lead-214** 0.642 +/-0.132 0.0463 +/-0.132 0.097 pci/L Manganese-54 U 0.0102 +/-0.0367 0.0272 +/-0.0367 0.058 I pCi/g Niobium-94 U 0.0207 +/-0.0303 0.0265 +/-0.0303 0.056 pCi/g Potassium-40 12.7 +/-1.11 0.250 +1-1.11 0.551 pCilg Radium-226 0.585 +/-0.128 0.052 +/-0.128 0.110 Silver-108m U-0.000565 +/-0.026 0.0227 +/-0.026 0.0477 pCi/g Thallium-208 0.241 +/-0.0641 0.0271 +/-0.0641 0.0573 pCi/ga The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 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 analvle recovery is outside of specified acceptance criteria

< Result is less than value reported 60

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company . Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact:

. Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-000l-006FS Project: YANK01204 Sample ID: 17211401.4 Client ID: YANK001 Vol. Recv.:

Parameter Qlualifier Re*sult Uncertainty LC TPU "VIDA Units DF Analyst Date Time Batch Mt

> Result is greater than value reported AI The TIC is a Suspected aldol-condensation product 3B Target analyte was detected in the associated blank BD ResulIts are' either below the MDC or tracer recovery is low C. Analyte has been confirmedby 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 wasanalyzed for, but not detected above the MDL, MDA, or LOD.

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

61

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www:gel.com Certificate of Analysis Company: , Connecticut Yankee Atomic Power Address :, 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4. 2006

Contact:

Mr. lack McCarthy Project: Soils PO# 0027332 Client Sample ID: 9530-0001 -007F Proiect: YANKO 1204 Sample ID: 172114015 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 08-SEP- 06 Receive Date: 20-SEP-06 Collector: Client Moisture: 14.1%

Parameter. Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mt Rad Gamma Spec Analysis GammnaSolid-SS GAM & ALL ESS,226 Ingrowth Waived Actinium-22.8 0.645 +/-0.261 0.0854 * .-I-0:261 " 0.187 .pC/g MJHI :10/02/060921 574334 1 Americium-241 U 0.0595 +/-0.0378 0.0357 /-0.0378 .0.0737 pCi/g Bismuth-212 0.977 +/-0.392 :0.207 +/M.392 0.446 Bismuth-214 *0.605 +/-0.123 0.0471 +/-0.123 0.101 pCi/g Cesium-134 UI 0.00 +/-0.046 0.0365 +/-0.046 0.0777 pCi/g Cesium--w137 0.134 +/-0.0553 0.;0297 +/4-0.0553 0.0634 pCt/g Cobalt-60 U 0.0203 +/-0.0343 0.0308 +/-0.0343. .0.068 Europium 152 U -0.0415 +/-0.0688. 0.0578 +/-0.0688 0.123 pCi/g Europium- 154 U -0.0289 +/-0.104 0.0839 +/-0.104 0.185 pCi/g Europium- 155 U *0.0877 +/-0.0987 0.0524 +/-0.0987 .0.109 pci/g Lead-212 0.881 +/-0.0767 .0.0318 +/-0.0767 0.0668 Lead-2 14 0.585 +/-0.0315 0.0434 +/-0:111 0.0917 pudg Manganese-54 U 0.0176 +/-0.0315 0.0274 +/-0.0315 0.0592 pCilg Niobium-94 U -0.015 +/-0.0302 0.024 +/-0.0302 0.0515 Potassium-40 13.4 +/-1.18 0.185 +/-1.18 0.434 pCi/g Radium-226 0.605 +/-0.123 0.0471 +/-0.123 0.101 pCi/g Silver- 108m U 0.00285 +/-0.0254 0.0221 +/-0.0254 0.0469 pCi/g pCi1g Thallium-208 0.274 +/-0.051 0.024 +1-0.051 0.0517 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2. 09/20/06 1536 570843 The following Analytical Methods were performed Method Description I EML HASL 300, 4.52-3 Notes:

The Qualifiers in this report are defined as follows:

A quality control analyte recove'y is outside of specified acceptance criteria

< Result is less than value reported 62

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-007F Project: YANKO01204 Sample ID: 172114015 ClientD:

Vol. Recv.: YANKOO I I'arameter Qualifier Result Uncertainty LC TPU Nif)A Units DF Analyst Vate Time Batch Mt.

> 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

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 4. 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-009F Project: YANKO 1204 172114016 / Client ID: YANKOOI Sample ID:

Matrix: r TS Vol. Recv.:

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 12.8%

Parameter Qualifier Result Uncertainty LC . TPU MDA Units DF Analyst Date Time Batch. Mt Rad Gamma Spec Analysis Gamma;SoId-FSSGAM & ALL FSS 226 Ingrowth Waived , .

Actiniuim-228 1 0.853 +/1-0.145 0.0559 +/-0.145 0.12o0 pCi/g MJHI 10/02/060921,574334r I

AmeIriciUm-24 I +/-0.113 0.0925

+/-0.11i3 U 0.0188 0.192 pCi/g Bismuth-212 0.391 L/-0.278 0.121 +/-0.278 0.257 pci/ýý Bismuth-214 0.511 +/-0.0924 0.0314 +/-0.0924 0.0663 pCilg Cesium- 134 U 0.02232 +/-0.0242 0.0185 +/-0.0242 0.0394 pCi/g Cesium-I 37 0.0641 +/-0.0413 0.0188 +I-0.041 3 0.0395 pCi/gl

+/-0.0198 0.0169 +/-0.0198 0.0368

.Cobalt-60 U 0.00129 pCi/g:

Europium- 152 U 0.0365 +/-0.0526 0.0423 +/-0.0526 0.0888 pCi/g Europium- 154 U -0.00251 +/-0.0619 0.0452 +/-0.0619 0.0987 pCi/g Europium- 155 U 0.0286 +/-0.0599 0.0534 +/-0.0599 0.111 pci!/g pci/g Lead-212 0.667 +/-0.0687 0.0337 +/-0.0687 0.0695 Lead-214 0.626 +/-0.0869 0.0313 +/-0.0869 0.0656 pCilg Manganese-54 U 0.0317 +/-0.0253 0.0153 +/-0.0253 0.0328 pCi/g Niobium-94 U -0.0013 +/-0.0177 0.0152 +/-0.0177 0.0321 13.0 +/-0.831 0.143 +/-0.831 0.315 pCi/g Potassium-40 Radium-226 0.511 +/-0.0924 0.0314 +/-0.0924 0.0663 pCi/g pCilg pCi/gC Silver-108m U 0.0146 +/-0.0167 0.015 +/-0.0167 0.0315 Thallium-208 0.217 +/-0.0483 0.0146 +/-0.0483 0.0311 pCi/gI The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 The following Analytical Methods weut performed Method Description I EML HASL 300,4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

A quality control analyte recovery is outside of specified acceptance criteria

< Result is less than value reported 64

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006 Contact' Mr. Jack McCarthy

.Project: Soils PO# 002332 Client SampleID: 9530-0001-009F Proiect: YANK01204

SamplelD: 172114016 ..ClientiD: YANKOO I Vol. Recv.:

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

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

BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected, U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UL Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-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 !njun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006 Contact-. *Mr.Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-013F. Project: YANKO 1204 Sample ID:. 172!114017 * .* Client ID: *YANKOO I Matrix: TS Vol. Recv.:

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 16.6%

Parameter Qualirter* Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch Nit Rad Gamma Spec Analysis Gamtna,Solid- FSSGAM & ALL FSS 226 Ingrowth.

waiie.

Actinium-228 0.740 .+/-0.127 0.0409 +/A. 127 0.0882. pCi/gU MJHI 10/02/06 0922 574334. 1 Americium-241 . U, 0.00362 +/-0.0583 '0.053 +/-0.0583 0u109 pCi/g Bismuth-212. 0-387 i/-0.189 0.0995 +/-0:189 0.212 pci/g Bismuth-214 0.525 +/-0.0781 0.0268 +/-0.0781 0.0564 pCi/ga Cesium- 134 U 0.023 +/-0.022 0.017 +/-0.022 0.036 pCi/g Cesium-137 0.0729 +/-0.0276 0.0153 +/-0.0276. 0.0322 pCi/g Cobalt-60 * '. UI . 0.00 +/-0.0373 0.0138 +/-0.0373 0.0301 pCi/g Europium- 152 U -0.0476 +/-0.0396 0.0323 +/-0.0396 0.0679 pCii/g Europium- 154 U 0.000881. +/-0.0505 0.0419 +1-0.0505 0.0903 pCi/g Europium- 155 U 0.016 .+/-0.0515 0.0458 +/-0.0515 0.0945 pCi/g Lead-212 0.589 +/-0.0732 0.0307 +/=0.0732 0.0629 Lead-214 0.570 +/-0.065 0.027 +/-0.065 0.0564 pCi/ga Manganese-54 U 0.0012 +/-0.0157 0.0136 +/-0.0157 0.029 Niobium-94 U -0.00299 +/-0.0143 0.0123 +/-0.0143 0.06 pCi/g Potassium-40 12.4 +/-0.724 0.106 +/-0.724 G.235 pCilg Radium-226 0.525 +/-0.0781 0.0268 +/-0.0781 0.0564 p)0/g Silver-108m U 0.00791 +/-0.0139 0.0123 +/-0.0139 0.0259 pCi/g-Thallium-208 0.218 +/-0.0361 0.0143 +/-0.0361 0.0301 pCilg The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 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 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-013F Proiect:. YANK01204 Sample ID: 172114017 ClientID: YANK001 Vol. Recv.:

Parameter "u,.,,..r Result Uncertainty LC TPU MDJA Units DF Analyst Date Time Batch Mt

> Result is greater than value reported

.A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank 11BDResults are either below the MDC or tracer recovery is low C: Analyte has been confirmed by GC/MS analysis..

D Restilts 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 sampleand 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

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.comr Certificate of Analysis Company: Connecticut Yankee Atomic-Power Address : 362 Injun Hollow Rd East Hampton. Connecticut 06424 Report Date: October 4. 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-01 4F Proiect: YANKO 1204 Sample ID: .172114018 Client ID: YANK001 M atr ix: * ... . TS Vol. Recv.:

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 13.6%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch M1 Rad Gamma Spec Analysis.

Gamma.Solid-FSS GAM & ALL FSS 226 Ingrowth.

Waived Actinium-228 0.770 +1-0.212 0.0859 +/A-.212 0.172 pCi/g :MJHI 10/02/06 1023*574334 Americium-241 U 0.035: :+/-0.040.. 0.0324 +/-0.040 0.0648" pCi/g Bismuth-212. 0.700 +/-0.298 0.205 +/-0.298 0.411 pCi/g Bismuth-214 0.596 +/-0.126 0.0446 +/-0.126 0.0892 pCi/g Cesium-134 U 0.0156 +/-0.0351 0.0314 +/-0.0351 0.0628 pCi/g Cesium-137 0.0547 +/-0.0528 .0.0254 +/-0.0528" 0.0507 pCi/g.

-.Cobalt-60 U 0.00268 . +/-0.0347 0.0291 +/*0.0347 0.0582 pCi/g

Europium-152 U -0.0696 +1-0.0936, 0.0564 ÷/-0.0936 0.113 pCi/g' EUropium-154 U -0.0999 +/-0.101 0.0729 +/-0.101 0.146 pCi/g Europium-155 U 0.00172 +/-0.0565 0.0492 +/-0.0565 0.0982 pCi/g Lead-2 12 0.657*, +/-0.086 0.0312 +/-0.086 0.0623 pCitg Lead-214 0.609 +/-0.10.7 0.0404 +/-0a107 0.0808 pCi/g Manganese-54 U -0.0127 +/-0.0309 0.0214 +/-0.0309 0.0428 pCi/g Niobium-94 U -0.0162 +/-0.0257 0.0211 +/-0.0257 0.0423 pCi/g Potassium-40 12.5 +/-1.31 0.251 +/-1.31 0.501 pCi/g Radium-226 0.596 +/-0.126 0.0446 +/-0.126 0.0892 pCi/g Silver-108m U -0.017 +/-0.0234 0.0189 +/-0.0234 0.0378 pCi/g Thallium-208 0.202 +/-0.051 0.0228 +/-0.051 0.0456 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 The following Analytical Methods were performed Method Description EML HASL 300,4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

A quality control analyte recovery is outside of specified acceptance criteria Result is less than value reported 68

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4. 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID. 9530-000I-014F Project: YANK01204 Sample ID: 172114018 Client ID:. YANK001 PrmtrQu...r -Uncertnt L: "U I'fA Units DFAna"ystDte TimeBatchMtVol.Re Parameter "*vuanlier Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch Nit

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

69

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 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530:-0001-014FS Project: YANK01204 Sample ID: 172114019,. Client ID:. YANKOO I Matrix: TS Vol. Recv.:

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 13.5%

Parameter Qualifier Result Uncertainty LC TPU. AJDA Units DF Analyst Date Time Batch Mt, Rad Gamma Spec Analysis GanznaSlMid-FSSGAM & ALL. FSS 226 Ingrowth Waived Actinium-228 . 0.724 +/-0.183, 0.0614 +/-0.183 .0.135 pCi/g MJHI 10/02/06 1344 574334, 1

Americium-241 . -0.0361 +/-0.0949 0.0756 +1-0;0949 0.157 .pCi/g Bismuth-212 0.449 +/-0.308 0.153 +/-0.308

0.330 pCi/p Bismuth-214 0.511 +/-0.103 0.0328 +/-0.103 0.0708 pCi/g Cesium-134 U! 0(00 +/-0.0439 0.0268 +/-0.0439 0.0572 pCi/g Cesium- 137 0.0729 +/-0.0406 0.0199 +/-0.0406 0.0428 pCi/g Cobalt-60 U 0.00586 +/-0.0236. 0.0208 +/-0.0236 0.0465 pCi/g EuLropium- 152 U -0.0409 +/-0.0665 .0.0458 +/-0.0665 0.0973 Europium-154 U -0.0391 +/-0.0666 0.0524 +/-0.0666 0.118 pCi/g Europium- 155 U 0.0598 +/-0.0586 0.0541 +/-0.0586 0.112 pCi/g Lead-212 " . 0.781 +/-0.070 0.0285 +/-0.070 0.0597. Pci/g Lead-214 0.632 +/-0.0979 0.0363 +/-0.0979 0.0768 pCi/g Manganese-54 U 0.00384 +/-0.0213 0.0182 +/-0.0213 0.0397 pCi/g Niobium-94 U 0.0031 +/-0.0192 0.0165 +/-0.0192 0.0358 pCi/g Potassium-40 12.2 +/-1.08 0.139 +/- 1.08 0.327 pCi/g Radium-226 0.511 +/-0.103 0.0328 +/-0.103 0.0708 pCi/g Silver-108m U 0.0222 +/-0.0184 0.0175 +/-0.0184 0.0373 pCi/g Thallium-208 0.294 +/-0.0515 0.0166 +/-0.0515 0.0359 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 09/20/06 1536 570843 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

A quality control analyte recovery is outside of specified acceptance criteria

< Result is less than value reported 70

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd.

East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy

'Project: Soils PO# 002332 Client Sample ID: 9530-0001-014FS Project: YANKO 1204 Sample ID: .172114019. .. Client ID: YANKOOI Vol. Recv.:

Paraet Vu Uncertainty LC TPU M[A Units DF Analyst Date Time Batch Nit

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

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

71

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.comr Certificate of Analysis Company Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd .

East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-015F .Project: YANKO 1204, Sample ID: 172114020 Client ID: YANKOOI Matrix: TS Vol. Recv.:

Collect Date: 08-SEP-06 Receive Date: 20-SEP-06 Collector: Client Moisture: 11.3%

Parameter . Qualifier Result Uncertainty LC TPU . M1DA Units DF Analyst Date Time Batch Mt Rad Gamma Spec Analysis GammaiSolid-FSS GAM & ALL FSS 226 Ingi'owth Waived Actinium-228 0.644. +/-0.161 0.0631 +1-0.161 0.138 401. MJH 1.0/02/06 1345 57433:4 Americiumim-241 U -0.0336 +/-0.109 0.0844 +1-0.1 09 "0.1'76 pCi/ga Bismuth-212 0.569' +/-0.273 -0.122 +/-0.273 0.266 Bismuth-214 0.449 +/-0.0867 0.0328 +/-0.0867 0.0703 pCilg Cesium-134 U 0.0226 +/-0.0592 0.0218 +/-0.0592 0.0468 pCi/gV Cesium-137 0.0415 +/70.0554 0.0185. +/-0.0554 0.03.97 Cobalt-60 U 0.00214 +/-0.021 0.0179 +1-0.021 0.0403 pCilg 0.0452 +/-0.0545 pCi/gM iEturpium-152 U -040102 +/-0.0545 0.0957 Europium-154 U -0.0195 +/-0.0706 0.0576 +/-0.0706 0.127 pCi/g0 Europium- 155 U .0.0685 +/-0.0967 .0.0485 +/-0.0967 0.101 pCi/g

Lead-212 0.695 " 4-/-0.065 0.0273 +/-0.065 0.0571 pu~g Lead-2 14 . 0.496 +4-0.0794 0.0352 +1-0.0794 0.0743 Manganese-54 U 0.0025 +/-0.0231 0.0194 +/-0.023 I 0.042 pCilga Niobium-94 U 0.00735 +/-0.0205 0.0179 +1-0.0205 0.0383 pCi/g0 Potassium-40 12.0 +/-0.924 0.137 +/-0.924 0.318 pCi/g0 Radium-226 0.449 +/-0.0867 0.0328 +/-0.0867 0.0703 pCi/g Silver-108m U -0.0174 +/-0.0168 0.0136 +/-0.0168 0.0293 pCg Thallium-208 0.218 +/-0.0517 0.0177 +/-0.0517 0.0379 pCi~g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-02.1 LXM2 09/20/06 1536 570843 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 72

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843). 556-8171 -www.gel.com Certificate of Analysis Company.: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: October 4, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9530-0001-015F: Proiect: YANK01204 Sample ID: 172-114020 Client ID'. YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU rM.DA Units 11 Analyst Date Time Batch Mt.

> 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 notdetected 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.

73

QUALITY CONTROL DATA 74

GENERAL.ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary ReDort Date: October 4, 2006 Client: Connecticut Yankee Atomic Power Page 1 of 9 362 Injun Hollow Rd East Hampton, Connecticut

Contact:

Mr. Jack McCarthy Workorder: 172114 Parmname NOM. Sample Qual _QC Units RPD% REC% Range Anlst Date Time Rad Allpha Spec Batch .572120 QC1201.191304 172114001 DUP Americium-241. U 0.0864 U 0.0.286 pC!i/g. 101 (0% -100%) TCI 09/28/06 11:56 Uncert: +/0.105 +/-0.0554 TPU: +/-0.106 +1-0.0555 U 0.00 U -0.0072 pCi/g 200 (0%- 100%)

Uncert: +/-0.0553 +/-0.0141 TPU: +/-0.0553 +!-0.0141 Curium-243/244 U 0.0664 U -0.00672 pCi/g 245 (0%7- 100%)

Uncert: +/-0.0911 +/.0.0132 TPU: +1-0.0915 +/-0.0132 QQCI2OI191306 LCS Americitim-241 11.4

12.6 puig IllI (75%-125%)

Uncert: +/-1.20 TPU: +/-1.96 Ciiuriun-242 U 0.0299 pCilg Uncert: +/-0.0586 TPU: +/-0.0588 Curium-243/244 13.7 .14.4 pCi/g 105 (75%-125%)

Uncert: +/-1.28 TPU: +/-2.18 QC12Ol 191303 MB Americium-241 U 0.00455 pcilg Uncert: +/-0.0226 TPU: +1-0-0227 Curium-242 U 0.00 pCi/g9 Uncert: +/-0.0581 TPU: +/-0.0581 Curium-243/244 U -0.0704 pci/g-Uncert: +/-0.0436 TPU: +/-0.0445 QC1201191305 172114001 MS Americium-241 12.0 U 0.0864 12.9 pCilg- 108 (75%-125%)

Uncert: +/-0.105 +/-1.10 TPU +/-0.106 +/-1.85 Curium-242 U 0.00 U -0.0126 pCi/g-Uncett: +/-0.0553 +--0.0175 TPU +/-0.0553 +1-&.0175 Curium-243/244 14.5 U 0.0664 14.4 pcilge 99 (75%-125%)

Uncert: *+/-0.0911 .1-1.16 TPU +/-0.0915 +,-2.03 Batch 572121 QC1201191308 172114001 DUP Plutonium-238 U 0.102 U 0.0358 pCilg 96 (0%- 100%) TCI 09/28/06 11:56 75

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171. - www.gel.corn QC Summary Workorder: 172114 Page 2 of 9 Parmname NOM Samplle _ual _QC Units RPD% REC% Range Anlst Date Time Rad Alpha Spec Batch 572121 Uncert: +/-0.0996 +/-0.0808 TPU: +/-0.100 +/-0*0809 Pliutonium-239/240 U 0.062 U -0.0313 pCilg .608 (0%- 100%)

Uncert: *+/-0.077 +**0.0909 TPU: +/-0.0773 +/-0.091 QC1201191310 LCS Plutonium-238 U 0.0404 pCi/g ,(75%-,125%)

Uncert: +/-0.0758 TPU: +/-0.0759 Plutonium-239/240 10.5 11.2 107 (75%-125%)

Uncert: +/-1.07 TPU: +/- 1.73 pCi/g.

QC1201191307 MB Plutonium-238 U 0.00363 09/28/06 11:56 Uncert: t+79)-0.114

- +/-0. I 14 TPU:

PILutoniL[M-239/240 U 0.0618 Uncert: +1-o.107

TPU:' +.-

/-0.107 QC12Q]I191309 172114001 MS Plutonium-239 U 0.102 .U 0.0976 (75%- 125%) 09/28/06 11:56 Uncert: +/-0.0996 +/-0.102 pCi/g-TPU: +/-0.100 +1-0.103 Plutonitim-239/240 H1.1 U 0.062 I1.9 1*07. (75%-125%)

Uncert: +/-0.077 * +/-1.09 TPU: +/-0.0773 +/-1.79 Batch 572122 QC1201191312 172114001 ýDUP PlUtonium-241 U 6.10 U 4.20 pCi/g 0 (0%- 100%) TOC 09/29/0623:34 Uncert: +/-8.99 +1-8.54 TPU: +/-9.01 +/-8.55 QC1201191314 LCS Plutonium-241 132 112 pCi/g 85 (75%-125%) 09/30/06 00:06 Uncert: +/-12.9 TPU: +/- 17.0 QC120119131t MB PlutoniUm-241 U 2.21 09/29/06 23:18 Uncert: +/-8.86 TPU: +/-8.86 QC1201191313 172114001 MS Plutonium-241 144 U 6.10 141 pci/g- 98 (75%-125%) 09/29/06 23:50 Uncert: +/-8.99 +1-14.2 TPU: +/-9.01 1-419.8 Rad Gamma Spec Batch 574334 QC1201196534 172114006 DUP Actinium-228 0.828 0.724 pCi/g 13 (0% - 100%) MJHI 10/02/06 13:46 Uncert: +/-0.191 +1-0.264 41-0264 76

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www gel.com QC Summary Workorder: 172114 Page 3 of 9 Parmname NOM -- Sample Qual _QC_ Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 574334 TPU: +/-0.191 Americium-24 I U -0.0107 U 0.00921 pCi/g 2710 (0%- 100%)

Uncert: +1-0.0746 +141.0404 TPU:" +/-0.0746 +/-0.0404

Bismuth-212 0.881 0.621

+40.284 pCi/g 35 (0%= 100%)

Uncert: +1-0.459 +1-0.284 TPU:. +/-0.459

Bismuth-214 0.612 0.719 pci/g 16 (0%- 100%)

Uncert: +1-0..130 .+1-0.131.

TPU: +/-0.130 +1-0.131 Cesium- 134 UI .0.00 U (100367 pCi/g 184 (0%- 100%)

Uncert: +/-0.0376 +/-0.0364 TPU: +/-0.0376 +1-0.0364 CeSium-137 0.182 0.227 pCi/g 22 (0% - 100%)

Uncert: +/-0.0483 +1-0.0551 TPU: +/-0.0483 +"-0.0551 Cobalt-60 U -0.00988 U -010M503 pCi/g 65 (0%-100%)

Uncert: +/-0.0263.1 +1-0&0277 TPU: +/-0.0263 +1-0.0277 EuroLpium-152 U 0.0683 U -0.1 12 pCi/g. 825 Uncert: +/-0.0624 +/-0.0713 (0%- 1oo%)

+1-0.0713 (0-100%)

TPU: +/-0.0624

Eu'opium- 154 U. 0.104 U 0.0469 pCi/g 76 Uncert: 4-0.0885 +1-0.0793 TPU: +/-0.0885 +/-0.0793

Europium- 155 U .0.0308 U 0.046 pCi/g 40 (0%- 100%)

Uncent: +/-0.0643 +/-0.0633 TPU: . +/-0.0643 +/-0tg633 Lead-21 2 0.882 &876 p00/g I (0% - 20%)

Uncert: +/-0.0991 +/41-.12 TPU: +/-0.0991 +/-0.0812 Lead-214 0.857 0.790 pCi/g 8 (0%- 20%)

Uncert: +/-0.131 +/-0.136 TPU: +1-0.131 +1-0:136 Manganese-54 U 0.000152 U 0.0209 pCi/g 197 (0%- 100%)

Uncert: +/-0.0265 +1-0.032, TPU: +/-0.0265 +/-041328 Niobilum-94 u 0.(P279 UI 0.00 pCi/g 132 (0% - 100%)

Uncert: +/-0.0215 +1/-0533 TPU: +1-0.0215 +/-0&1533 Potassium-40 13.3 14.6 pCi/g 10 (0% - 20%)

Uncert: +1-1.37 Wk 19 TPU: +1-1.37 Radiuin-226 0.612 pCi/g 16 (0%- 100%)

Uncert: +1-0.130 +4-0.134 TPU: +/-0.130 +/-0.131 Silver- losm U -0.00885 U -0.0074 pCi/g 18 (0%- 100%)

Uncert: +/-0.0202 +/-1.0243 77

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.corn QC Summary Workorder: 172114 Page 4 of 9 Parmname NOM SainpleQual___QCUnits RPD% REC% Range AnIst Date Time Rad Ganmna Spec Batch . 574334 TPU: +/-0.0202 41-0.0243 Thallium-208 0.282 0.260 pCi/g 8 (0%- 100%)

Uncert: +/-0.0618 41-0.0691 TPU:. +/-0.0618. 4-1-0.0691 QC 1201196535 LCS Actinium-228 U. -0.0425 TOilg *10/02/06 13:46 Uncert: +/-0.520 TPU: +/-0.520 Aniericium-241 23.4 23.8 pCi/a0 102 (75%-125%)

Uncert: +i-1.09 TPU: +/-1.09 Bismuth-212 U -0.416 pCi/g Uncert: +/-0.904 TPU: +1-0.904 Bismuth-214 U -0.0594 PCi/g Uncert: +t-0.221 TPU: 4/-0.221 Cesium- 134 U 0.0337 PCi/ga Uncert: 41-0.137 TPU: +1-0.137 Cesium- 137 9.56 10.2 pCilg' 107 (75%-125%)

Uncert: +/-0.440 TPU: "/-0.440 Cobalt-60 14.4 15.0 pCiJý' 104 (75%7125%)

Unrcert: .1-0.617 TPU: 41.0.617 Europium- 152 U -0.0589 pCilg Uncert: +1-0260 TPU: 4.0260 Europium- 154 U 0J123 pCi/gý Uncert: 4W-0.253 TPU: "1-0.253 Europium- 155 U 0.0288 pCi/g' Uncert: +1-0.280 TPU: +/-0.280 Lead-212 U 0.0247 Pci/g-Uncert: 41-0.147 TPU: 4"-0.147 Lead-214 U 0.26 PC,/g2 Uncent: 4M t;190 41-0.190 TPU:

NManganese-54 U -0i37 pCi/g Uncert: 4*1120 TPU: 4M. 120 Niobitim-94 U G00618 PCi/g-Uncert: +/-0.112 TPU: 4"-0.112 Potassium-40 U 0.273 pCilg-78

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.corn Workorder:

QC Summary 172114 Page 5 of 9 Parmname NOM Sample-. Oual _Qn__CUit RPD% REC% Range AnIst Date Time RadGamma Spec Batch 574334 Uncen: +/-0.940 TPU: +/-0.940 Radium-226 U -0.0594 pCi/g (75%-125%)

Uncert: +/-0.221 TPU: .+/-0.221 Silver- 108m U 0.0133 pCi/g, Uncert: +/-0.0983 TPU:, +W-0.0983 Thallium-208 U -0.0156 pCilg Uncert: +/-0.108 TPU: +/-0.108 QCI1201196533 NIB Actinium-228 U '0.0198 pCi/ýg 10/02/06 13:45 Uncerti +W-0.0496 TPU: +/-0.0496 Americium2 I"

U 0.0304 Uncert: .1-0.0722 TPU:: .,-0.0722 Bismuth- 212 U: '-0.0547 Uncert: -W-0.097 TPU: 41-0.097 pci/g.

Bismuth-214 U 0.0089 Uncert: +1-0.02741 TPU: +1-0.0274 Cesium- 134 U 0.0013 Uncert: +/-0.0141 TPU: I+/-4)0141 pCi/g-Cesium- 137

'U -0.00185 Uncert: +/-0.l0l2' TPU: +/-"f,127 pCi/.g Cobalt-60 U 0.00854 Uncert: +/-0.0131 TPU: +/40131 pCi/kg Europium- 152 U 0.0369 Uncert: +/-0.0388 TPU: +/-0.0388 pCi/g.

Europium- 154 U &00458 Uncert: +1/40366 TPU: +/4101366 Europium- 155 U -0.10598 Uncert: +/-41.if42 TPU: +14111342 pCi/g.

Lead-212 U CLO149 Um.'cr:

+/-0j1" TPU: +1-410456 pCi/g Lead-214 U 0.00865 Uncert: +/-0.0381 TPU: +/-0.0381 79

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 172114 Page 6 of 9 Parmname NOM Sample Qual _QC Units RPD% .REC% Range_ Anlist Date Time Rad Gamma Spec Batch 574334 Manganese-54 U 0.00522 pCilg.

Uncert: +1-0.0132 TPU: +1-0.0132 Niobium-94 U 0.0114 Uncert: -q-0.00966 TPU: 41-0.00966 PotassiUm -40 U, 0.0292 Pci/g.

Uncert:: +/-0.282 TPU: " *-0.282 Radium-226 U 0.0089 Uncert: +1-0.02_74 TPU: +/-0.0274 Silver-108m U 0.00301 pCi/g-Uncert: +/-0.0115 TPU: +1*-0.0115 Thallium-208 U 0.0143 pCi/0 Uncert: /4-0.0139 TPU: ".-0.O139 Rad GasFlow

.Batch 571177.

QC1201189313 172114001 DUP Strontium-90 U 0.00276 U 0,00958 pCi/g 0 (0%- 100%) KSDI 09/29/06 23:36 Uncert: +/-0.00637 +"-0.00698 TPU:. +/40.00637 4/-0.00699 QC1201189315 LCS Strontium-90 1.74 1.61 PCVig 93 (75%-125%) 09/30/06 08:48 Uncert: 4J-0;0822 TPU: 4-1100946 QC1201189312 MB Strontium-90 U QU 0716 pCi/g 09/29/06 23:36 Uncert: +W-0.00594 TPU: +/-0.00594 QC1201189314 172114001 MS Strontium-90 1.74 U 0.00276 1.63 pCi/!! 94 (75%-125%) 09/30/06 08:48 Uncert: +/-0.00637 */-0.0859

.TPU: +/-0.00637 +/-0.0982 Rad Liquid Scintillation Batch 570929 QC1201188776 172114010 DUP h'on-55 U 12.2 U -0.391 pCi/g 0 (0% - 100%) VlXPI 09/27/06 14:03 Uncert: +/-25.2 +1-32.7 TPU: +/-25.2 4-32.7 QC1201188778 LCS Iron-55 621 .-37 pCi/i 86 (75%-125%) 09/27/06 14:36 Uncert: +/-45,3 TPU: +1-59.7 QC1201188775 MB Iron-55 U 22.8 pCi/g 10/03/06 05:37 80

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 172114 Page 7 of 9 Parniname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Liquid Scintillation Batch 570929 Uncert: +/-41.7 TPU: +/-41.7 QC1201188777 172114010 MS Ihon-55 . . 699 U / 12.2 667 pCi/g .95 (75%7125%) 09/27/06 14:19 Uncert:

+!-25.2 +1-45.8

+/-25.2. +1-64.5 TPU:

Batch 570930 QC1201188781 172114010 DUP Nickel-63 U -5.95 U 2.04 pCi/g 0 (0%'- 100%) VIXPI 09/25/06 17:07 Uncert: +/-10.8 +1-8.19 TPU: +/-10.8 +/-8.19 QC1201t88783 LCS Nickel-63 512, 427 pci/gý 83 (75%-125%) 09/25/06 17:40 Uncert: +/-21.0 TPU: +/-25.0

...QC1201188780 MB Nickel-63 U 4.54 09/25/06 16:50 Uncert: +/-10.3

.. TpU: +/-10.3 pCi/g QCt201188782 172114010 MS Nickel-63 .571 U -5.95 467 82 (75%-125%) 09/25/06 17:23 Uncert: +/-10.8 +/-24.9 TPU: +/-10:8 +/-29.5 Batch 570932

- QC1201188785 172114001 DUP Technetium-99 u. 0.0384 u 0.0669 pCi/g 0 *(0% - 100%) KXR I 09/29/06 17:06 Uncert: +/-0.285 +/-0.286 TPU: +/-0.285 +1-0286, QC1201188787 LCS Technetiumn-99 12.7 13.8 pCilg. 109 (75%-125%) 09/29/06 17:39 Uncert: +/-0.523 TPU: +1-0.610 QC1201188784 MB Technetium-99 U 0.0777 pCi/g- 09/29/06 16:50 Uncert: +/-0.247 TPU: +/-0.247 QC1201188786 172114001 MS TechnetiUm-99 13.1 U 0.0384 13.4 pCi/g0 103 (75%-125%) 09/29/06 17:23 Uncert: +/-0.285 +441575 TPU: +/-0.285 +1-04651 Batch 570933 QC1201188789 172114001 DUP TritiUnt U -5.59 U -223 pCi/g u (0% - 100%) DFAI 09/25/06 02:59 Uncert: +/-7.85 -- 7..28 TPU: +/-7.85 +/-7.28 QC1201188791 LCS Tritium 54.5 49.4 pCi/g 91 (75%-125%) 09/25/06 03:31 Uncert: +/-9.21 TPU: +1-925 81

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.corn QC Summary Workorder: 172114 Page 8 of 9 Parmname NOM Sample Qual _QCC Units RPD% REC% Range Anlst Date Time Rad Liquid Scintillation Batch 570933 QC1201188788 MB" Tritium U 1.22 pCilga 09/25/06 02:42 Uncert: +/-6.42 TPU:, .+/-6.42 QC1201188790 172114001 MS

Tritium " 54.5 U -5.59 . 41.0 pCi/ga 75 (75%-125%) 09/25/06 03:15 Uncert: +/-7.85 +/-8.97 TPU: +/-7.85 +/-9.00 Batch 570934 QCI201188793 172114010 DUP Carbon- 14 U 0.00 U -0.026 pCi/g 0 (0% - 100%) AXD2 09/23/06 16:34 Uncert: +/-0.0813 +/-0.0763 TPU: +/70.0813 +/-0.0763, QCI201188795 LCS Carbon- 14 .6.57 6.32 pCi/g 96 (75%-125%) 09/23/06 17:34.

Uncert: +/-0.448 TPU: .+/-0.458 QC1201188792 MB Carbon-14 Uý -0.0391 pCi/g. 09/23/0)6 15:52.

Uncert: +/-0.0746 TPU: +/-0.0746 QC1201188794 172114010 MS Carbon-.14 7.05 U .0.00 6.69 pCi/g .95 (75%-125%) 09/23/06 17:17 Uncert: +/:0.0813 +)/-0.468 TPU: +/-0.0813 +/-0.479 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 GCIMS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL 82

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.comr QC Summary Workorder: 172114 Page 9 of 9 Parmname NOOM SamQple 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 cone. by a factor of 4 or more.

- Indicates analyte is a surrogate compound.

A The Relative Peicent Difference (RPD) obtained from the sample duplicate (DUP),is evaluated against the acceptence criteria when the samnple 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 DUPresult.

Foi PS, PSD. and SDILT iesults, the values listed are the measured amounts, not final concentrations.

Where the analytical method has beenperformed under NELAP certification, the analysis has met all of the req.uiIrji s off the PELLC standaidiu uniless qualified on the QC S *i iary.

83

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD ATTACHMENT 4 (DQA RESULTS)

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD ATTACHMENT 4A (PRELIMINARY DATA REVIEW)

PRELIMINARY DATA REVIEW FORM Survey Unit: 9530-0001 Survey Unit Name: Central Peninsula Classification : 2 Survey Media: Soil Type of Survey : Final Status Survey Type of Measurement: Radionuclide Specific lumber of Measurements : 15 BASIC STATISTICAL QUANTITIES Cs-137 Target Level (pCi/g) : 5.38E+00 Minimum Value: 4.15E-02 Maximum Value: 2.59E-01 Mean: 1.09E-01 Median: 1.21E-01 Standard Deviation : 5.40E-02 Reported Results Cs-137 Fraction of Concentration Target Sample Identification (pCi/g) Detect? Level

+

9530-0001-001F 1.30E-01 0.024

+

9530-0001-002F 1.27E-01 0.024

+

9530-0001-003F 2.59E-01 0.048

+

9530-0001-004F 1.31 E-01 0.024

+

9530-0001-005F 4.85E-02 0.009

+

9530-0001-006F 1.21 E-01 0.022

+

9530-0001-007F 1.34E-01 0.025

+

9530-0001-008F 1.33E-01 0.025

+

9530-0001-009F 6.41 E-02 0.012

+

9530-0001-O0OF 1.34E-01 0.025

+

9530-0001-01iF 1.06E-01 0.020

+

9530-0001-012F 8.50E-02 0.016

+

9530-0001-013F 7.29E-02 0.014

+

9530-0001-014F 5.47E-02 0.010 9530-0001-015F 4.15E-02 0.008 S.

J Ce-

/o // I SqkD ied6 1 off 1

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD ATTACHMENT 4B (GRAPHICAL REPRESENTATION OF DATA)

FREQUENCY PLOT FOR CESIUM- 137 Survey Unit: 9530-0001 Survey Unit Name: Central Peninsula Mean: 1.09E-01 pCi/g Frequency Plot For Cs-137 10 8

"6 2

4.15E-02 9.33E-02 1.45E-01 1.97E-01 2.49E-01 3.01E-01 Upper End Value (pCi/g)

Upper End Observation Observation Value Frequency Frequency 4.15E-02 1 7%

9.33E-02 5 33%

1.45E-01 8 53%

1.97E-01 0 0%

2.49E-01 0 0%

3.01E-01 1 7%

Total: 15 100%

J.-/7o3Id ReviewIof 1 of 1

QUANTILE PLOT FOR CESIUM-137 Survey-Unit: 9530-0001 Survey Unit Name: Central Peninsula Mean: 1.09E-01 pCi/g Quantile Plot For Cs-137 3.OOE-01 2.50E-01 O 2.OOE-01 '

0 1.50E 1.OQE-01 -

0 5.00E-02 -

0.00E+00 0 20 40 60 80 100 Percentage Cs-137 Rank Percentage 4.15E-02 1 3%

4.85E-02 2 10%

5.47E-02 3 17%

6.41E-02 4 23%

7.29E-02 5 30%

8.50E-02 6 37%

1.06E-01 7 43%

1.21E-01 8 50%

1.27E-01 9 57%

1.30E-01 10 63%

1.31E-01 11 70%

1.33E-01 12 77%

1.34E-01 13 83%

1.34E-01 14 90%

2.59E-01 15 97%

(, eý7-4:2pef-Z'fA f114,1 SI /]

S1 /

CENTRAL PENINSULA SURVEY UNIT 9530-0001 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: 0001 Survey Area Name: Central Peninsula WPIR#: 2006-0038 Classification: 2 Type I (ax error): 0.05 (N): 15 Radionuclide: Cs-137 DCGL: 5.38 Results (pCi/g) DCGL - Results Sign 1.30E-01 5.25E+00 1 1.27E-01 5.25E+00 1 2.59E-01 5.12E+00 1 1.31E-01 5.25E+00 1 4.85E-02 5.33E+00 1 1.21E-01 5.26E+00 1 1.34E-01 5.25E+00 1 1.33E-01 5.25E+00 1 6.41E-02 5.32E+00 1 1.34E-01 5.25E+00 1 1.06E-01 5.27E+00 1 8.50E-02 5.30E+00 1 7.29E-02 5.3 1E+00 1 5.47E-02 5.33E+00 1 4.15E-02 5.34E+00 1 1* +

4- .1.

1 1-4 4-Number of positive differences (S+): 15 Critical Value: I11 Survey Unit Meets Acceptance Criterion Performed by: se*.6,te , Date: Ji/'11-1cl1' Independent Review by. Date: t~ z'3)c*(,

Page 1 of I

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD ATTACHMENT 4D (QC SPLIT RESULTS)

Health Physics Procedure 24265-000-GPP-GGGR-R5124-000-Rev.CY-000 Attachment A HelhPysisPoeue22500GPGG-5I2-0-e.Y00Atcmn Split Sample Assessment Form Survey Area#: 9530 Survey Unit #: 0001 Survey Unit name: Central Peninsula Sample Plan or WPIR#: 2005-0038 SML#: 9530-0001-006 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 9530-0001-006F, the comparison sample was 9530-0001-006FS.

STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (Y/N)

Cs-137 1.21E-1 1.38E-2 9 0.6-1.66 1.24E-1 2.27E-2 1.02 Y Comments/Corrective Actions: N/A Table is provided to show acceptance criteria used to assess split samples.

Resolution Agreement Range 4-7 0.5-2.0 8-15 0.6-1.66 16-50 0,75 - 1.33 51 -200 0,80 - 1.25

>200 0.85-1.18

.- / j Page 1 of I

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 #: 0001 Survey Unit name: Central Peninsula Sample Plan or WPIR#: 2005-0038 SML#: 9530-0001-014 Sample

Description:

Comparison of split samples collected from sample measurement location #14 and analyzed using gamma spectroscopy by off-site Vendor Laboratory. The standard sample was 9530-0001-014F, the comparison sample was 9530-0001-014FS.

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

K-40 1.25E1 6.55E-1 191 0.8- 1.25 1.22E1I 5.40E-1 0.98 Y Comments/Corrective Actions: Cs-137 was not detected in Table is provided to show acceptance criteria sufficient quantities to evaluate in accordance with used to assess split samples.

procedure 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 Performed By:

U, J Page 1 of 1

CENTRAL PENINSULA SURVEY UNIT 9530-0001 RELEASE RECORD ATTACHMENT 4E (COMPASS DQA WITH POWER CURVE)

DQA Surface Soil Report Assessment Summary Site: 9530-0001 FSS Planner(s): McCarthy 0__* -

Survey Unit Name: Central Peninsula 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 0.9 !zz

_-0.8 0.7 4-_

it 0.6

0.5 0.4

0.3 A- 0.2 0.1 o

0 1 2 3 4 5 6 Soil Coxcentration (Cilg), includi,'g backgrownd

- - Prospective Power U 1-beta .... Actual Power

- LBGR - i Estimated Power DCGL ---- Retrospective Power COMPASS v0.0.0 1011912006 Page1I

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

Type = "R" indicates reference area sample.

Sample Number Type Cs-1 37 (pC i/g) 9530-0001-001 F S 0.13 9530-0001-002F S 0.13 9530-0001-003F S 0.26 9530-0001-004F S 0.13 9530-0001-005F S 0.05 9530-0001-006F S 0.12 9530-0001-007F S 0.13 9530-0001-008F S 0.13 9530-0001-009F S 0.06 9530-0001 -01 OF S 0.13 9530-0001-011 F S 0.11 9530-0001-012F S 0.08 9530-0001-013F S 0.07 9530-0001-014F S 0.05 9530-0001-015F S 0.04 Basic Statistical Quantities Summary Statistic Survey Unit Background DQO Results Sample Number 15 N/A N=15 Mean (pCi/g) 0.11 N/A 0.16 Median (pCi/g) 0.12 N/A N/A Std Dev (pCi/g) 0.05 N/A 0.0916 High Value (pCi/g) 0.26 N/A N/A Low Value (pCi/g) 0.04 N/A N/A COMPASS v1.0.0 10/19/2006 Page 2

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