ML070740575

Final Status Survey Final Report Phase VI - Appendix A2, Survey Unit Release Record 9304-0002, Southwest Protected Area Grounds, Book 3 of 18

ML070740575
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	10/30/2006
From:	Massengill R Connecticut Yankee Atomic Power Co
To:	NRC/FSME, Office of Nuclear Material Safety and Safeguards
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Download: ML070740575 (134)

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U Final Status Survey Final Report Phase VI Appendix A2 Survey Unit Release Record 9304-0002, Southwest Protected Area Grounds February 2007

CYAPCO FINAL STATUS SURVEY RELEASE RECORD SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 K-Prepared By: K-t 'ý'S-e5* Date: /c-/b-C)C FSS Engineer U Reviewed By: Date: t4~r(

A S Engineer Approved By: A- 7 Date: / /

Technical Support Manager Revision 0

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD TABLE OF CONTENTS

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

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

3. DATA QUALITY OBJECTIVES (DQO) .......................................... 6

4. SU RVEY D ESIGN ............................................................................. 9

5. SURVEY IMPLEMENTATION ....................................................... 12

6. SURVEY RESU LTS ........................................................................ 13

7. QUALITY CONTROL .................................................................... 20

8. INVESTIGATIONS AND RESULTS ............................................. 20

9. REMEDIATION AND RESULTS .................................................. 20

10. CHANGES FROM THE FINAL STATUS SURVEY PLAN ...... 21

11. DATA QUALITY ASSESSMENT (DQA) ...................................... 21

12. A N OM A LIE S .................................................................................... 22

13. CON CLU SION ................................................................................ 22

14. A TTA CH M ENTS ............................................................................. 23 14.1 Attachment 1 - Figures (6 pages including cover) 14.2 Attachment 2 - Scan Results (4 pages including cover) 14.3 Attachment 3 - Laboratory Results (84 pages including cover) 14.4 Attachment 4- DQA Results (16 pages including covers)

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD SURVEY UNIT DESCRIPTION Survey Unit 9304-0002 (Southwest Protected Area Grounds) is designated as Final Status Survey (FSS) Class 1 and consists of 1,268 m2 (0.313 acres) of uninhabited open land located approximately four hundred twenty (420) feet from the reference coordinate system benchmark used at Haddam Neck Plant (HNP) (see Attachment 1). The survey unit is bounded by Survey Unit 9306-0000, a Class 2 survey unit, on the east side and by Survey Unit 9304-0001, a Class 2 survey unit, on the three remaining sides. The survey unit is comprised of predominantly flat disturbed open land that gently slopes from east to west toward the Connecticut River.

The reference coordinates associated with this survey unit are E004 through E006 by S067 through S068. Section 5.4.4 of the License Termination Plan (LTP) identifies the requirement for a reference coordinate system for FSS. 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 9304-0002 as Class 1 in August 2006.

The "Classification Basis Summary" conducted for Survey Unit 9304-0002 consisted of:

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

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

A review of the 10CFR50.75(g)(1) database report identifies twenty-four (24) documents associated with or relating to this survey area. Two (2) of the twenty-four (24) documents identified pertain to the current radiological conditions of this survey unit at the time of this report.

a) HP 98-493: Analyses of Samples Taken east of the Intake Screen House-Bus 10 Modification. - Four (4) asphalt and seven (7) soil samples to a depth of two (2) feet were collected due East of the Screen House. The samples were analyzed on-site by gamma spectroscopy.

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD The results indicate that no plant derived radionuclides were present at quantities above detection limits.

b) HP 99-111 Analysis of Samples Taken for Proposed Trench from Screen House to Security Building (PAP). - Four (4) asphalt and ten (10) soil samples to a depth of two (2) feet were collected due East of the Screen House. The samples were analyzed on-site by gamma spectroscopy.

The results indicate that no plant derived radionuclides were present at quantities above detection limits.

In May of 2006, while performing a Radiological Assessment of Survey Area 9304 during removal of Circulating Water piping system, soil was removed from the area and was staged in piles around the west-northwest edge of the excavation. Survey and sampling was being performed on the removed soil at selected, and accessible, locations along the base of the piles. Survey and sampling was conducted under SSWP 06-03-002. On May 9, 2006 an area of elevated activity was identified on a pile by direct scan measurement using an E-600 with a SPA-3 probe. The maximum response was 168,000 counts per minute (cpm) according to the survey. The locations were evaluated, and Cs-137 was confirmed to be present. A sample was collected (9304-0000-037RACR) and analyzed using gamma spectroscopy. The results indicated that the Cs-137 activity present in the sample was 897 pCi/g and the Cobalt-60 (Co-60) activity present in the sample was 9.51 pCi/g. The area of the pile was remediated until no further elevated activity was identified.

Subsequent sampling confirmed the remediation was successful in removing residual activity.

Based on the levels of activity and the fact that a remediation was conducted in the area, Survey Unit 9304-0002, a Class 1 Survey Unit, was established around the area of remediation to ensure that the proper level of FSS surveys and sampling were conducted in accordance with the LTP.

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

A characterization survey plan was initiated and executed by Site Closure personnel, in August 2006, to determine existing conditions and obtain radiological data for Final Status Survey (FSS). Six (6) samples were collected within Survey Unit 9304-0002 and analyzed on-site using gamma spectroscopy.

Five (5) of the six (6) sample results were determined to be less than the established criteria for detection (i.e., a radionuclide is considered to be detected if the result is greater than two standard deviations of uncertainty).

One sample, sample number 9304-02-005, was above the criteria for detection. The sample concentration was 0.056 pCi/g for Cs-137 and 0.036pCi/g for Co-60 or 2.7% of the Operational Derived Concentration Revision 0 4

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD Guideline Level (DCGL). The Cs-137 levels were consistent with those concentrations in soil as determined from off-site locations as documented by Health Physics Technical Support Document (TSD) BCY-HP-0063, "Background Cs-137 Concentration in Soil." Characterization results showed Cs-137 and Co-60 to be the isotopes of concern for FSS planning purposes (refer to Table 1).

Table 1 - Basic Statistical Quantities for Cesium-137 and Cobalt-60 from the Characterization Survey Parameter Cs-137 (pCi/g) Co-60 (pCi/g)

Minimum Value: -1.30E-02 -1. 18E-02 Maximum Value: 5.59E-02 3.56E-02 Mean: 1.31E-02 6.53E-03 Median: 1.1 9E-02 4.42E-03 Standard deviation: 2.60E-02 1.77E-02 Note: The Operational DCGLs are 4.75 pCi/g for Cs-137 and 2.29 pCi/g for Co-60; these are used in conjunction with the unity rule to achieve 15 mrem/yr Total Effective Dose Equivalent (TEDE)

Additionally, sample number 9304-02-003C was analyzed by the off-site laboratory for Hard-To-Detect (HTD) radionuclides. Material Service Requisition (MSR) number 06-1083 was generated to cover the analysis of the samples at the approved off-site laboratory.

The results of the HTD sample analysis indicated that there were no sample results above the established criteria for detection (i.e., a result greater than two standard deviations of uncertainty).

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 both existing and future 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 DCGLs, justifying a final survey unit classification of Class 1 (refer to Section 3).

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD

3. DATA QUALITY OBJECTIVES (DQO)

FSS design and planning used the Data Quality Objective (DQO) process as described by the LTP, Procedure RPM 5.1-11, "Preparationof Final Status Survey Plan," and the "Multi-Agency Radiation Survey and Site Investigation Manual" (MARSSIM). A summary of the main features of the DQO process are provided herein.

The DQO process incorporated hypothesis testing and probabilistic sampling distributions to control decision errors during data analysis. Hypothesis testing is a process based on the scientific method that compares a baseline condition to an alternate condition. The baseline condition is technically known as the null hypothesis. Hypothesis testing rests on the premise that the null hypothesis is true and that sufficient evidence must be provided for rejection. In designing the survey plan, the underlying assumption, or null hypothesis was that residual activity in the survey unit exceeded the release criteria. Rejection of the null hypothesis would indicate that residual activity within the survey unit does not exceed the release criteria. Probabilistic sampling is a preferred method to select a sample so that each item in the population being studied has a known likelihood of being included in the sample.

The primary objective of the Final Status Survey Plan (FSSP) was to demonstrate that the level of residual radioactivity in Survey Unit 9304-0002 did not exceed the release criteria as 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 Derived Concentration Guideline Levels (DCGLs). The DCGLs represent average levels of radioactivity above background levels and are presented in terms of surface or mass activity concentrations. Chapter 6 of the LTP describes in detail the modeling used to develop the DCGLs for soil (called Base Case Soil DCGL), existing groundwater radioactivity and future groundwater radioactivity that will be contributed by building basements and footings.

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

Equation 1 H Total H Soil + HExistingGW + HFutureGW Revision 0 6

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD The total dose under the LTP criteria is twenty-five (25) mrem/yr TEDE from all three 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 two (2) mremlyr TEDE.

This survey unit is considered impacted by future groundwater radioactive contamination, as there are 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, two (2) mrem/yr TEDE.

Equation 2 19 mrem/yrrot, = 15 mrem/yrsoil + 2 mrem/yrExisting GW+ 2 mrem/yrFutureGW The allowable dose for soil in this survey unit is fifteen (15) mrem/yr TEDE as shown by Equation 2 above. The concentration of residual radioactivity resulting in fifteen (15) 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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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD Table 2 - Radionuclide Specific Base Case Soil DCGL, Operational DCGLs and Required Minimum Detectable Concentrations Radionuclide Base Case Soil Operational pig(3 DCGL Required (1) DCGL (pCi/g) (3) MDC (pCi/g) (2) (pCi/g) (4)

H-3 4.12E+02 2.47E+02 1.65E+01 C-14 5.66E+00 3.40E+00 2.26E-01 Mn-54 1.74E+01 1.04E+01 6.96E-01 Fe-55 2.74E+04 1.64E+04 1.1OE+03 Co-60 3.81E+00 2.29E+00 1.52E-01 Ni-63 7.23E+02 4.34E+02 2.89E+01 Sr-90 1.55E+00 9.30E-01 6.20E-02 Nb-94 7.12E+00 4.27E+00 2.85E-01 Tc-99 1.26E+01 7.56E+00 5.04E-01 Ag- 108m 7.14E+00 4.28E+00 2.86E-01 Cs-134 4.67E+00 2.80E+00 1.87E-01 Cs-137 7.91E+00 4.75E+00 3.16E-01 Eu-152 1.01E+01 6.06E+00 4.04E-01 Eu-154 9.29E+00 5.57E+00 3.72E-01 Eu-155 3.92E+02 2.35E+02 1.57E+01 Pu-238 2.96E+01 1.78E+01 1.18E+00 Pu-239/240 2.67E+01 1.60E+01 1.07E+00 Pu-241 8.70E+02 5.22E+02 3.48E+01 Am-241 (5) 2.58E+01 1.55E+01 1.03E+00 Cm-243/244 2.90E+0 1 1.74E+01 1.16E+00 (1) Bold indicates those radionuclides considered to be hard to detect (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 15 mrem/yr TEDE.

(4) The required MDC is equivalent to 1 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.

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD Another important facet of the DQO process is to identify the radionuclides of concern and determine the concentration variability. Six (6) samples were collected and analyzed during characterization as discussed in Section 2. The samples were collected through systematic sampling over a simple grid design.

One characterization sample was analyzed for Hard to Detect (HTD) radionuclides. Cs-137 was found to be the predominate radionuclide of concern. Co-60 was included in the survey design based on historical information. The mean and variability of Cs-137 and Co-60 in soil in this survey unit was determined during characterization and are provided in Table 1.

Instrument DQOs included a verification of the ability of the survey instrument to detect the radiation(s) of interest relative to the DCGL. Survey instrument response checks were required prior to issue and after the instrument had been used. Control and accountability of survey instruments was required to assure the quality and prevent the loss of data.

As part of the DQOs applied to laboratory processes, analysis results were reported as actual calculated results. Results reported as less than Minimum Detectable Concentration (<MDC) were not accepted for FSS. Sample report summaries included unique sample identification, analytical method, radionuclide, result, and uncertainty to two (2) standard deviations, laboratory data qualifiers, units, and the required and observed MDC.

4. SURVEY DESIGN The level of effort associated with planning a survey is based on the complexity of the survey and nature of the hazards. Guidance for preparing FSS plans is provided in Procedure RPM 5.1-11, "Preparation of Final Status Survey Plans".

The FSSP uses an integrated sample design that combines scanning surveys and sampling which can be either random or biased.

Characterization sampling was used to determine concentration variability. The samples were collected through systematic sampling over a simple grid design.

The DQO process determined that Cs-137 and Co-60 would be the radionuclides of concern in 9304-0002 (refer to Section 3). The sum of fractions or unity rule was used with the individual Operational DCGLs because multiple radionuclides (Cs-137 and Co-60) are considered in the survey design.

Other radionuclides identified during FSS were evaluated to ensure adequate survey design.

Surrogate DCGLs were not required for this survey unit based on process knowledge from FSS of nearby adjacent areas 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.

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD The Elevated Measurement Comparison (EMC) count rate equivalent was determined to be 3,178 cpm above background, in accordance with Procedure RPM 5.1-11.

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 4.7 to maintain the relative shift (A/5) in the range of 1 and 3. The resulting 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.

Survey design specified fifteen (15) surface soil samples for non-parametric statistical testing.

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 1 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.

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD Table 3 - Sample Measurement Locations with Associated GPS Coordinates Designation Northing Easting 9304-0002-001IF 236374.55 668548.03 9304-0002-00IFS 9304-0002-002F 236374.55 668515.51 9304-0002-003F 236346.39 668499.25 9304-0002-004F 236318.22 668482.98 9304-0002-004FS 9304-0002-005F 236318.22 668515.51 9304-0002-006F 236346.39 668531.77 9304-0002-007F 236346.39 668564.29 9304-0002-008F 236318.22 668548.03 9304-0002-009F 236290.06 668531.77 9304-0002-OIOF 236261.89 668548.03 9304-0002-011F 236290.06 668564.29 9304-0002-012F 236318.22 668580.55 9304-0002-013F 236318.22 668613.07 9304-0002-014F 236290.06 668596.81 9304-0002-015F 236261.89 668580.55 Although Procedure RPM 5.1-11 only specified that 5% of the samples are required to be selected for HTD analysis, two (2) soil samples or 13% of the number of samples that would be used for non-parametric statistical testing were randomly selected for HTD radionuclide analysis using the Microsoft Excel "RANDBETWEEN" function. Each sample was sent off-site for a full suite analysis of the HTD radionuclides specified in the LTP, Table 2-12, "Radionuclides Potentially Present at Haddam Neck Plant" and as provided in Table 2.

The implementation of quality control measures as referenced by Procedure RPM 5.1-24, "Split Sample Assessment for Final Status Survey," included the collection of two (2) soil samples for "split sample" analysis by the off-site laboratory. These locations were selected randomly using the Microsoft Excel "RANDBETWEEN" function. Two (2) sample locations were identified as requiring split samples to be collected and analyzed.

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD Based on the LTP requirements for a Class 1 land area, the total surface area to be scanned was 100% of the survey unit. A map of the scan grid is provided in Attachment 1.

For this Class 1 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 - Synopsis of the Survey Design Feature Design Criteria Basis Survey Unit Land Area 1,268 m2 Based on AutoCAD-Lt and Visual Sample Plan calculations Type 1 and Type 2 errors were 0.05, sigma was 0.045 pCi/g, Number of Measurements 15 the LBGR was adjusted to 4.66 to maintain Relative Shift in the range of 1 and 3 Grid Spacing 9.88 m Based on triangular grid 4.75 pCi/g Cs-137 Administratively set to achieve Operational DCGL 2.29 pCi/g Co-60 15 mrem/yr TEDE (1) 4.75 pCi/g Cs-137 Slv The Operational DCGL meets Soil Investigation Level pCi/g Co-60 the LTP criteria for a Class 1 survey unit The LTP requires 100% area Scan Survey Area 100% of the area coverage for Class 1 Survey Coverage Units.

>DCGLEMC Administratively set to achieve Scan Investigation Level (or 3,178 cpm 15 mremlyr TEDE above background)

(1) The allowable dose for soil in this survey unit is 15 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 FSSP, 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.

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD Scan surveys were performed on 100% of the surface area of Survey Unit 9304-0002. Grid lines, one meter wide, were painted on the ground of the entire survey unit. A background survey was performed around the survey unit and it was determined that the range of background measurements, using an Eberline E-600 with a SPA-3 sodium iodide detector.

The entire survey unit 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.

Measurement locations were identified in North American Datum (NAD) 1927 coordinates using GPS; fixed sample measurement locations were identified and marked with a surveyor's flag or paint for identification. At each fixed sample measurement 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."

Two (2) samples (9304-0002-005F and 9304-0002-008F) were randomly selected for HTD radionuclide analysis by the off-site laboratory.

The implementation of quality control measures included the collection of two (2) samples (9304-0002-00IF and 9304-0002-004F) for "split sample" analysis.

6. SURVEY RESULTS All field survey activities were conducted between August 18 and August 22, 2006.

On August 18, 2006, the area was scanned in accordance with the Final Status Survey Plan (FSSP). Two (2) elevated measurement locations were identified during scanning. Two (2) judgmental or biased samples were collected at the elevated measurement locations. The samples collected at elevated measurement locations were 9304-0002-016F and 9304-0002-017F. A map identifying all of the sample locations is provided in Attachment 1.

The seventeen (17) fixed sample measurement 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 fixed sample measurement locations. All scan results are provided in Attachment 2.

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD Table 5 - Scan Results for Sample Measurement Locations Sample Highest Logged Action Level (1)

Measurement Reading (kcpm) > Action Level (2)

Location (kcpm) 1 10.0 10.8 NO 2 10.2 11.5 NO 3 9.1 10.6 NO 4 8.9 10.7 NO 5 11.1 12.2 NO 6 8.4 10.6 NO 7 8.9 10.9 NO 8 10.7 11.0 NO 9 10.7 11.4 NO 10 10.1 12.2 NO 11 10.9 12.2 NO 12 11.8 12.2 NO 13 10.2 11.9 NO 14 10.6 13.2 NO 15 9.6 11.7 NO 16 62.9 17.7 YES(3) 17 150 14.1 YES(3)

(1) The action level is based on a measurement above ambient background in accordance with the FSSP.

(2) FSS sample plans require movement of the sample measurement location to the area within the 1 meter radius yielding the response above the action level.

(3) Judgmental sample location identified during scanning as an elevated measurement location.

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

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD Table 6 - Scan Area Results Highest Elevated Row Logged Action Level >Action Reading Investigation Number Reading (kcpm) () Level (2) Identification Sample (3)

(kcpm) 1 10.1 10.9 NO NA NA 2 9.4 10.0 NO NA NA 3 8.5 9.7 NO NA NA 4 8.5 10.9 NO NA NA 5 8.8 10.7 NO NA NA 6 8.3 10.8 NO NA NA 7 10.1 11.6 NO NA NA 8 9.9 11.3 NO NA NA 9 9.0 12.6 NO NA NA 10 8.4 10.8 NO NA NA 11 9.2 12.1 NO NA NA 12 9.7 12.3 NO NA NA 13 10.0 12.6 NO NA NA 14 10.0 13.4 NO NA NA 15 10.4 12.3 NO NA NA 16 9.1 12.2 NO NA NA 17 10.2 12.0 NO NA NA 18 10.6 11.6 NO NA NA 19 10.1 13.0 NO NA NA 20 10.7 12.8 NO NA NA 21 9.8 12.6 NO NA NA 22 9.5 12.0 NO NA NA 23 9.4 11.7 NO NA NA 24 10.8 11.7 NO NA NA 25 11.0 13.2 NO NA NA 26 11.2 12.7 NO NA NA 27 10.8 12.5 NO NA NA Revision 0 15 Revision 0 15

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD Table 6 - (continued)

Highest Elevated Row Logged Action Level >Action Reading Investigation Number Reading (kcpm) () Level (2) Identification Sample (kcpm) (3) 28 11.6 12.8 NO NA NA 29 11.7 12.7 NO NA NA 29 58.9 12.7 YES 9304-02-ER-01-29-1 9304-0002-016F 30 10.7 12.6 NO NA NA 31 12.4 13.5 NO NA NA 32 11.3 12.8 NO NA NA 33 11.5 13.9 NO NA NA 33 17.3 13.9 YES 9304-02-ER-01-33-1 9304-0002-017F 34 10.2 12.9 NO NA NA 35 11.1 12.1 NO NA NA 36 11.2 13.0 NO NA NA 37 13.2 14.2 NO NA NA 38 11.1 12.1 NO NA NA 39 11.1 13.8 NO NA NA 40 10.8 12.0 NO NA NA 41 11.6 12.2 NO NA NA 42 11.5 13.1 NO NA NA 43 11.5 14.5 NO NA NA 44 10.9 12.9 NO NA NA 45 10.3 13.5 NO NA NA 46 10.8 11.7 NO NA NA 47 10.4 11.6 NO NA NA (1) The action level is based on a measurement above ambient background.

(2) Elevated areas were determined to be NORM, refer to Section 8.

Two (2) judgmental or biased samples were collected at elevated measurement locations identified above. The samples collected at elevated locations were 9304-0002-016F and 9304-0002-017F.

The off-site laboratory employed for the radiological analyses of samples was General Engineering Laboratories (GEL), LLC, Charleston, South Carolina.

The laboratory analyzed the fifteen (15) samples collected for non-parametric Revision 0 16

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD statistical testing, the associated duplicates, and the two (2) biased samples using gamma spectroscopy. Gamma spectroscopy analysis was performed to the required MDCs. Gamma spectroscopy results identified some radionuclides meeting the established criteria for detection (i.e., a result greater than two standard deviations uncertainty).

Cs-137 was identified in two (2) of the fifteen (15) samples collected for non-parametric statistical testing. Co-60 was also identified in two (2) of the fifteen (15) samples collected for non-parametric statistical testing.

The mean of the gamma spectroscopic analysis results for the samples indicated that Cs-137 was present at levels that are similar to 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. The mean of the gamma spectroscopic analysis results for the samples indicated that Co-60 was present at very low levels in two (2) samples and at levels below the established detection limit, of 2G, in the remaining thirteen (13) samples collected and analyzed for non-parametric testing. A summary of the results of the fifteen (15) samples collected for non-parametric statistical testing is provided in Table 7.

Table 7 - Summary of Soil Sample Results Cs-137 Co-60 Sample Number pCi/g pCi/g 9304-0002-001F 1.59E-02 8.81E-03 9304-0002-002F -8.36E-03 1.30E-02 9304-0002-003F -3.16E-03 -7.74E-05 9304-0002-004F 8.31E-03 2.53E-02 9304-0002-005F 7.01E-03 1.23E-03 9304-0002-006F 9.55E-03 5.27E-03 9304-0002-007F 1.68E-02 -6.86E-03 9304-0002-008F 1.27E-03 -1.06E-03 9304-0002-009F -8.14E-03 -2.82E-03 9304-0002-01 OF -2.18E-03 -2.71 E-03 9304-0002-011F 2.79E-03 -2.76E-03 9304-0002-012F 1.07E-02 2.42E-02 9304-0002-013F 4.38E-02 2.22E-02 9304-0002-014F 2.40E-02 1.20E-02 9304-0002-015F 3.11E-02 1.57E-02 Revision 0 17

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD The "sum-of-fractions" or "unity rule" is the mathematical test used to evaluate compliance with radiological criteria for license termination when more than one radionuclide has been determined to be potentially present. The unity rule is:

Equation 3 Cl + C 2 C__ <

DCGLI DCGL2 DCGL, Where: Cn = concentration of radionuclide n and DCGLn = DCGL of radionuclide n.

The results of the unity rule calculation for the radionuclides of concern in the statistical sample population for Survey Unit 9304-0001 are provided in Table 8 below.

Table 8- Results of Unity Calculation for Surface Soil Samples Comprising the Statistical Sample Population Fraction of the Operational Sample Number DCGL(1 ) (2) Unity Cs-137 Co-60 9304-0002-001F -

9304-0002-002F -

9304-0002-003F -

9304-0002-004F - 0.011 0.011 9304-0002-005F -

9304-0002-006F -

9304-0002-007F -

9304-0002-008F -

9304-0002-009F -

9304-0002-OIOF -

9304-0002-01 IF - - -

9304-0002-012F - 0.011 0.011 9304-0002-013F 0.009 0.009 Revision 0 18

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD Table 8 - Results of Unity Calculation for Surface Soil Samples Comprising the Statistical Sample Population Fraction of the Operational Sample Number DCGL(') (2) Unity Cs-137 Co-60 9304-0002-014F - - -

9304-0002-015F 0.007 - 0.007 (1) The Operational DCGL from Table 2 is 4.75 pCi/g for Cs-137 and 2.29 pCi/g for Co-60 to achieve fifteen (15) mrem/yr TEDE respectively.

(2) - indicates that the radionuclide was not positively detected in the sample 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. Table 8 lists the results for those HTD radionuclides meeting the accepted criteria for detection (i.e., a result greater than two standard deviations uncertainty) in one sample.

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. The HTD radionuclides identified in Table 8 meet the criteria for de-selection since their ratios are 2.2% for Cm-243/244, 2.1% for Pu-241, and 1.3% for Ni-63 with an aggregate total of 5.8%. Therefore, Cm-243/244, Pu-241, and Ni-63 will not be considered in the final dose determination for this survey unit Table 9 - Hard-to-Detect Sample Results Cm-243/244 Pu-241 Ni-63 Fraction Fraction Fraction Sample Activity of Activity of Activity of (pCi/g) DCGLop (pCi/g) DCGLop (pCi/g) DCGLop (1) (1) (1) 9304-0002-005F 3.75E-01 2.20E-02 1.1OE+O1 2.1OE-02 -

9304-0002-008F - - - - 9.11 E+00 1.30E-02 (1) The Operational DCGL from Table 2 is 17.4 pCi/g for Cm-243/244, 522 pCi/g for Pu-241, and 723 pCi/g for Ni-63.

(2) - indicates that the radionuclide was not positively detected in the sample Revision 0 19 Revision 0 19

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD Two (2) judgmental 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. None of the samples exceeded 3% of the Operational DCGL. No further action or investigations were required (see Table 9).

Table 10 - Judgmental or Biased Sample Results Fraction of the Sample Number (pCi/g) (pCi/g) Operational 9304-0002-016F 6.31E-02 1.77E-02 0.021 9304-0002-017F 2.92E-02 -1.01E-02 0.006 (1) The Operational DCGLs from Table 2 are 4.75 pCi/g for Cs-137 and 2.29 pCi/g for Co-60 and are used in conjunction with the unity rule

7. QUALITY CONTROL The off-site laboratory processed the split samples and performed gamma spectroscopy analysis. Two (2) samples, or 13% of the total number of samples selected for Non-Parametric analysis, were split and analyzed by an off-site laboratory. 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 unacceptable agreement between field split results for Cs-137 and Co-60 which was due to very low levels of activity reported that were generally approaching or below instrumentation detection limits. Assessment of the QC Split Samples was performed by using the reported results for NORM which resulted in acceptable agreement.

The sample analysis vendor, GEL maintains quality control and quality assurance plans as part of normal operations. Refer to Attachment 3 and Attachment 4 for data and data quality analysis results.

8. INVESTIGATIONS AND RESULTS No investigations were conducted.

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

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD

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 1.

The preliminary data review consisted of calculating basic statistical quantities (e.g., mean, median, standard deviation). The standard deviation was slightly less than the value used for the survey design. This would indicate that the number of samples collected was sufficient to meet the Operational DCGL. The mean and median values are well below the Operational DCGL as applied through the use of 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.

For Cs-137, the range of the data, about three (3) 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 17% 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 a positive skewness as confirmed by the calculated skew of 0.91.

For Co-60, the range of the data, about three (3) standard deviations, was not a particularly large variation considering that the levels were at extremely low levels where such variation is to be expected. The difference between the mean and median was 29% of the standard deviation which indicates a small skewness in the data. The data was represented graphically through posting plots, a frequency plot, and a quantile plot. The frequency plot shows a positive skewness as confirmed by the calculated skew of 0.47.

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

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD

12. ANOMALIES The anomalies associated with the poor agreement range between the field splits were presented in Section 7. The source of the disagreement for Cs-137 and Co-60 is likely due to the extremely low levels of activity being reported and the statistical uncertainties associated with the comparison of very small numbers.

GEL, the off-site laboratory reported one (1) Nonconformance Report (NCR) relating to the sample analysis for this survey unit. The analyst did not scan the samples into the batch prior to analysis. However, the samples did remain in their custody at all times. The error has been corrected and the analyst has been instructed on the proper procedures. This NCR did not affect the sample results for this survey unit.

No other anomalies were noted.

13. CONCLUSION Survey Unit 9304-0002 has met the final DQOs of the FSS plan. The ALARA criteria for soils as specified in Chapter 4 of the LTP were achieved. Elevated Measurement Comparison and remediation were not required.

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 was properly designated as Class 1.

The dose contribution from soil is 0.08 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 two (2) mrem/yr TEDE.

This survey unit is also considered impacted by future groundwater radioactive contamination, as there are underground foundations and footings 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 two (2) mremlyr 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 4.08 mrem/yr TEDE.

Therefore, Survey Unit 9304-0002 is acceptable for unrestricted release.

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SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 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 23 Revision 0 23

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD ATTACHMENT 1 (FIGURES)

Revision 0

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K' f

W- UE1J&14 im Am-Site Map With Reference To Survey Unit 9304-0002 IConnecticutYankee Atomic Power Company

9304-0002 = Sampleat Elevated Scan Location 11 5 00 4 05 15 00 009 10 9304-0001 Connecticut Yankee Atomic Power Company 9304-0002FINAL STA TUS SUR VEY SAMPLE LOCATIONS

Alk A 9304-0002 U.Ul'/ 04 0.0 z

-0.008 0.016 04 0.063

=&amleat 0.010 0.01114 &0.029 Elevated Scan Location Mr:;& I

-0.003 00 0.003 0.024 Note:

Cesium-137 0.007 0.001 residtsaV given in p 00 Ci/g 0.008 0

-0.002 0.031

-0.008 9304-0001 Connecticut Yankee Atomic Power Company Date By R.Massengill FIGURE3 9304-0002FinalStatus Survey Design October Cesium-137PostingPlot I 2006IR.Massel

9304-0002 AO a

-U.UU07 &30.022 0.013 0.009 fo 04 0.018 = Smplat 0.005 0.024 0 &-0.010 Locaton A" I

-0.001 001 0 -0.003 0.012 Not:

0.001 -0.001 Cobalt-60 resudts am 00 giv in p Mig 0.025 00 6 -0.003

-0.003 0.016

- -I-l I 9304-0001 Connecticut Yankee Atomic Power CompanyDaeB FIGURE4 9304-0002FinalStatus Survey Design

& Cobalt-60PostingPlot October2006 R.Massengill

9304-0002 Le~gend

= SCAN AREA 9304-0001 eY Connecticut Yankee Atomic Power Company 9304-0002FinalStatus Survey Scan Area

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD ATTACHMENT 2 (SCAN RESULTS)

FSS SURVEY UNIT 9304-0002 (CLASS 1 AREA)

SURVEY AREA SCAN DATA Survey Location Log Date Log Time Reading AL >AL E-600 SIN Probe SIN 9304-02-BC-01-01-0 8/18/2006 10:44:00 9.49E+03 1105 1012 9304-02-SC-01-01-0 8/18/2006 10:47:00 1.01 E+04 1.09E+04 1105 1012 9304-02-BC-01-02-0 8/18/2006 10:35:00 8.69E+03 1105 1012 9304-02-SC-01-02-0 8/18/2006 10:44:00 9.44E+03 1.OOE+04 1105 1012 9304-02-BC-01-03-0 8/18/2006 10:30:00 8.38E+03 1105 1012 9304-02-SC-01-03-0 8/18/2006 10:34:00 8.51E+03 9.69E+03 1105 1012 9304-02-BC-01-04-0 8/18/2006 10:25:00 9.53E+03 1105 1012 9304-02-SC-01-04-0 8/18/2006 10:28:00 8.53E+03 1.09E+04 1105 1012 9304-02-BC-01-05-0 8/18/2006 10:21:00 9.31EE+03 1105 1012 9304-02-SC-01-05-0 8/18/2006 10:24:00 8.77E+03 1.07E+04 1105 1012 9304-02-BC-01-06-0 8/18/2006 10:16:00 9.43E+03 1105 1012 9304-02-SC-01-06-0 8/18/2006 10:20:00 8.32E+03 1.08E+04 1105 1012 9304-02-BC-01-07-0 8/18/2006 10:12:00 1.02E+04 1105 1012 9304-02-SC-01-07-0 8/18/2006 10:15:00 1.01E+04 1.16E+04 1105 1012 9304-02-BC-01-08-0 8/18/2006 10:07:00 9.85E+03 1105 1012 9304-02-SC-01-08-0 8/18/2006 10:11:00 9.94E+03 1.13E+04 1105 1012 9304-02-BC-01-09-0 8/18/2006 10:03:00 1.11EE+04 1105 1012 9304-02-SC-01-09-0 8/18/2006 10:06:00 9.02E+03 1.26E+04 1105 1012 9304-02-BC-01-10-0 8/18/2006 9:58:00 9.45E+03 1105 1012 9304-02-SC-01-10-0 8/18/2006 10:02:00 8.42E+03 1.08E+04 1105 1012 9304-02-BC-01-11-0 8/18/2006 9:51:00 1.06E+04 1105 1012 9304-02-SC-01-11-0 8/18/2006 9:55:00 9.24E+03 1.21E+04 1105 1012 9304-02-BC-01-12-0 8/18/2006 9:45:00 1.08E+04 1105 1012 9304-02-SC-01-12-0 8/18/2006 9:50:00 9.65E+03 1.23E+04 1105 1012 9304-02-BC-01-13-0 8/18/2006 10:24:00 1.11E+04 1117 1001 9304-02-SC-01-13-0 8/18/2006 10:27:00 1.OOE+04 1.26E+04 1117 1001 9304-02-BC-01-14-0 8/18/2006 10:28:00 1.18E+04 1117 1001 9304-02-SC-01-14-0 8/18/2006 10:31:00 1.OOE+04 1.34E+04 1117 1001 9304-02-BC-01-15-0 8/18/2006 10:34:00 1.08E+04 1117 1001 9304-02-SC-01-15-0 8/18/2006 10:36:00 1.04E+04 1.23E+04 1117 1001 9304-02-BC-01-16-0 8/18/2006 10:38:00 1.07E+04 1117 1001 9304-02-SC-01-16-0 8/18/2006 10:40:00 9.12E+03 1.22E+04 1117 1001 9304-02-BC-01-17-0 8/18/2006 10:41:00 1.05E+04 1117 1001 9304-02-SC-01-17-0 8/18/2006 10:44:00 1.02E+04 1.20E+04 1117 1001 9304-02-BC-01-18-0 8/18/2006 10:45:00 1.02E+04 1117 1001 9304-02-SC-01-18-0 8/18/2006 10:48:00 1.06E+04 1.16E+04 1117 1001 9304-02-BC-01-19-0 8/18/2006 10:49:00 1.15E+04 1117 1001 9304-02-SC-01-19-0 8/18/2006 10:52:00 1.01 E+04 1.30E+04 1117 1001 9304-02-BC-01-20-0 8/18/2006 10:53:00 1.13E+04 1117 1001 9304-02-SC-01-20-0 8/18/2006 10:56:00 1.07E+04 1.28E+04 1117 1001 9304-02-BC-01-21-0 8/18/2006 10:58:00 1.11 E+04 1117 1001 9304-02-SC-01-21-0 8/18/2006 11:01:00 9.79E+03 1.26E+04 1117 1001 9304-02-BC-01-22-0 8/18/2006 11:02:00 1.05E+04 1117 1001 9304-02-SC-01-22-0 8/18/2006 11:04:00 9.54E+03 1.20E+04 1117 1001 9304-02-BC-01-23-0 8/18/2006 11:06:00 1.03E+04 1117 1001 9304-02-SC-01-23-0 8/18/2006 11:08:00 9.41E+03 1.17E+04 1117 1001 9304-02-BC-01-24-0 8/18/2006 11:09:00 1.03E+04 1117 1001 9304-02-SC-01-24-0 8/18/2006 11:12:00 1.08E+04 1.17E+04 1117 1001 9304-02-BC-01-25-0 8/18/2006 11:19:00 1.17E+04 1117 1001 9304-02-SC-01-25-0 8/18/2006 11:21:00 1.1OE+04 1.32E+04 1117 1001 1/31/2007 K:\Survey Alea Records\9304\FSSP\SAMPLE RESULTS\AREA AND FIXED LOCATION SCAN TABLES.xIs

FSS SURVEY UNIT 9304-0002 (CLASS 1 AREA)

SURVEY AREA SCAN DATA Survey Location Log Date Log Time Reading AL >AL E-600 SIN Probe SIN 9304-02-BC-01-26-0 8/18/2006 11:23:00 1.1 2E+04 1117 1001 9304-02-SC-01-26-0 8/18/2006 11:26:00 1.12E+04 1.27E+04 1117 1001 9304-02-BC-01-27-0 8/18/2006 11:27:00 1.10E+04 1117 1001 9304-02-SC-01-27-0 8/18/2006 11:30:00 1.08E+04 1.25E+04 1117 1001 9304-02-BC-01-28-0 8/21/2006 9:53:00 1.13E+04 1105 1012 9304-02-SC-01-28-0 8/21/2006 9:57:00 1.16E+04 1.28E+04 1105 1012 9304-02-BC-01-29-0 8/18/2006 9:22:00 1.12E+04 1117 1001 9304-02-SC-01-29-0 8/18/2006 9:33:00 1.17E+04 1.27E+04 1117 1001 9304-02-ER-01-29-1 8/18/2006 9:47:00 5.89E+04 1.27E+04 + 1117 1001 9304-02-BC-01-30-0 8/18/2006 9:34:00 1.11E+04 1117 1001 9304-02-SC-01-30-0 8/18/2006 9:40:00 1.07E+04 1.26E+04 1117 1001 9304-02-BC-01-31-0 8/18/2006 9:41:00 1.19E+04 1117 1001 9304-02-SC-01-31-0 8/18/2006 9:45:00 1.24E+04 1.35E+04 1117 1001 9304-02-BC-01-32-0 8/18/2006 9:48:00 1.13E+04 1117 1001 9304-02-SC-01-32-0 8/18/2006 9:53:00 1.13E+04 1.28E+04 1117 1001 9304-02-BC-01-33-0 8/18/2006 9:57:00 1.23E+04 1117 1001 9304-02-SC-01-33-0 8/18/2006 10:07:00 1.15E+04 1.39E+04 1117 1001 9304-02-ER-01-33-1 8/18/2006 10:32:00 1.73E+05 1.39E+04 + 1117 1001 9304-02-BC-01-34-0 8/18/2006 10:08:00 1.14E+04 1117 1001 9304-02-SC-01-34-0 8/18/2006 10:12:00 1.02E+04 1.29E+04 1117 1001 9304-02-BC-01-35-0 8/18/2006 10:13:00 1.06E+04 1117 1001 9304-02-SC-01-35-0 8/18/2006 10:16:00 1.11E+04 1.21E+04 1117 1001 9304-02-BC-01-36-0 8/18/2006 10:19:00 1.15E+04 1117 1001 9304-02-SC-01-36-0 8/18/2006 10:22:00 1.12E+04 1.30E+04 1117 1001 9304-02-BC-01-37-0 8/18/2006 8:44:00 1.26E+04 1105 1012 9304-02-SC-01-37-0 8/18/2006 8:48:00 1.32E+04 1.42E+04 1105 1012 9304-02-BC-01-38-0 8/18/2006 8:49:00 1.06E+04 1105 1012 9304-02-SC-01-38-0 8/18/2006 8:53:00 1.11E+04 1.21 E+04 1105 1012 9304-02-BC-01-39-0 8/18/2006 8:54:00 1.22E+04 1105 1012 9304-02-SC-01-39-0 8/18/2006 8:59:00 1.11E+04 1.38E+04 1105 1012 9304-02-BC-01-40-0 8/18/2006 9:00:00 1.05E+04 1105 1012 9304-02-SC-01-40-0 8/18/2006 9:09:00 1.08E+04 1.20E+04 1105 1012 9304-02-BC-01-41-0 8/18/2006 9:10:00 1.07E+04 1105 1012 9304-02-SC-01-41-0 8/18/2006 9:14:00 1.16E+04 1.22E+04 1105 1012 9304-02-BC-01-42-0 8/18/2006 9:16:00 1.16E+04 1105 1012 9304-02-SC-01-42-0 8/18/2006 9:20:00 1.15E+04 1.31E+04 1105 1012 9304-02-BC-01-43-0 8/18/2006 9:21:00 1.29E+04 1105 1012 9304-02-SC-01-43-0 8/18/2006 9:25:00 1.15E+04 1.45E+04 1105 1012 9304-02-BC-01-44-0 8/18/2006 9:26:00 1.14E+04 1105 1012 9304-02-SC-01-44-0 8/18/2006 9:30:00 1.09E+04 1.29E+04 1105 1012 9304-02-BC-01-45-0 8/18/2006 9:31:00 1.199E+04 1105 1012 9304-02-SC-01-45-0 8/18/2006 9:36:00 1.03E+04 1.35E+04 1105 1012 9304-02-BC-01-46-0 8/18/2006 10:54:00 1.04E+04 1105 1012 9304-02-SC-01-46-0 8/18/2006 10:57:00 9.75E+03 1.19E+04 1105 1012 9304-02-BC-01-47-0 8/18/2006 10:59:00 1.02E+04 1105 1012 9304-02-SC-01-47-0 8/18/2006 11:02:00 1.01 E+04 1.1 6E+04 1105 1012 2

1/31/2007 K:\Survey a Records\9304\FSSP\SAMPLE RESULTS\AREA AND FIXED LOCATION SCAN TABLES.xIS

FSS SURVEY UNIT 9304-0002 (CLASS 1 AREA)

FIXED SAMPLE LOCATION SCANS Survey Location Log Date Log Time Reading AL >AL E-600 S/N Probe SIN 9304-02-BL-00-01-0 8/21/2006 10:04:00 9.41 E+03 1105 1012 9304-02-SL-00-01-0 8/21/2006 10:06:00 1.OOE+04 1.08E+04 1105 1012 9304-02-BL-00-02-0 8/21/2006 10:16:00 1.01E+04 1105 1012 9304-02-SL-00-02-0 8/21/2006 10:20:00 1.02E+04 1.15E+04 1105 1012 9304-02-BL-00-03-0 8/21/2006 10:28:00 9.21E+03 1105 1012 9304-02-SL-00-03-0 8/21/2006 10:30:00 9.09E+03 1.06E+04 1105 1012 9304-02-BL-00-04-0 8/21/2006 10:38:00 9.36E+03 1105 1012 9304-02-SL-00-04-0 8/21/2006 10:40:00 8.90E+03 1.07E+04 1105 1012 9304-02-BL-00-05-0 8/21/2006 10:51:00 1.07E+04 1105 1012 9304-02-SL-00-05-0 8/21/2006 10:54:00 1.11 E+04 1.22E+04 1105 1012 9304-02-BL-00-06-0 8/21/2006 11:03:00 9.19E+03 1105 1012 9304-02-SL-00-06-0 8/21/2006 11:05:00 8.44E+03 1.06E+04 1105 1012 9304-02-BL-00-07-0 8/21/2006 11:13:00 9.50E+03 1105 1012 9304-02-SL-00-07-0 8/21/2006 11:16:00 8.94E+03 1.09E+04 1105 1012 9304-02-BL-00-08-0 8/21/2006 11:20:00 9.62E+03 1105 1012 9304-02-SL-00-08-0 8/21/2006 11:23:00 1.07E+04 1.10E+04 1105 1012 9304-02-BL-00-09-0 8/21/2006 13:15:00 9.94E+03 1105 1012 9304-02-SL-00-09-0 8/21/2006 13:17:00 1.07E+04 1.14E+04 1105 1012 9304-02-BL-00-10-0 8/21/2006 13:26:00 1.07E+04 1105 1012 9304-02-SL-00-10-0 8/21/2006 13:29:00 1.01E+04 1.22E+04 1105 1012 9304-02-BL-00-11-0 8/21/2006 13:37:00 1.07E+04 1105 1012 9304-02-SL-00-11-0 8/21/2006 13:39:00 1.09E+04 1.22E+04 1105 1012 9304-02-BL-00-12-0 8/21/2006 13:45:00 1.07E+04 1105 1012 9304-02-SL-00-12-0 8/21/2006 13:48:00 1.18E+04 1.22E+04 1105 1012 9304-02-BL-00-13-0 8/21/2006 13:51:00 1.04E+04 1105 1012 9304-02-SL-00-13-0 8/21/2006 13:53:00 1.02E+04 1.19E+04 1105 1012 9304-02-BL-00-14-0 8/21/2006 13:58:00 1.17E+04 1105 1012 9304-02-SL-00-14-0 8/21/2006 14:00:00 1.06E+04 1.32E+04 1105 1012 9304-02-BL-00-15-0 8/21/2006 14:05:00 1.03E+04 1105 1012 9304-02-SL-00-15-0 8/21/2006 14:07:00 9.56E+03 1.17E+04 1105 1012 9304-02-BL-00-16-0 8/21/2006 14:14:00 1.59E+04 1105 1012 9304-02-SL-00-16-0 8/21/2006 14:15:00 6.29E+04 1.77E+04 + 1105 1012 9304-02-BL-00-17-0 8/21/2006 14:26:00 1.25E+04 1105 1012 9304-02-SL-00-17-0 8/21/2006 14:27:00 1.50E+05 1.41E+04 + 1105 1012 1/31/2007 K\,urvey Area Reoords\9304\FSSP\SAMPLE RESULTS\AREA AND FIXED LOCATION SCAN TABLES.xls

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD ATTACHMENT 3 (LABORATORY DATA)

General Narrative 1

CASE NARRATIVE For CONNECTICUT YANKEE RE: Soil PO# 002332 Work Order: 170544 SDG: MSR#06-1174 September 6, 2006 Laboratory Identification:

General Engineering Laboratories, LLC Mailing Address:

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

2040 Savage Road Charleston, South Carolina 29407 Telephone Number:

(843) 556-8171 Summary:

Sample receipt The sample(s) for this Project arrived at General Engineering Laboratories, LLC, (GEL) in Charleston, South Carolina on August 30, 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 170544001 9304-0002-OOIF 170544002 9304-0002-00IFS 170544003 9304-0002-002F 170544004 9304-0002-003F 170544005 9304-0002-004F 170544006 9304-0002-004FS 170544007 9304-0002-006F 170544008 9304-0002-007F 170544009 9304-0002-009F GENERAL ENGINEERING LABORATORIES, LLC a Member of THE GEL GROUP INC.

P.O. Box 30712 - Charleston, SC 29417 ° 2040 Savage Road (29407)

Phone (843) 556-8171 ° Fax (843) 766-1178 ° www.gel.com 2

170544010 9304-0002-01OF 170544011 9304-0002-01 IF 170544012 9304-0002-012F 170544013 9304-0002-013F 170544014 9304-0002-014F 170544015 9304-0002-015F 170544016 9304-0002-016F 170544017 9304-0002-017F 170544018 9304-0002-005F 170544019 9304-0002-008F 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:

Seventeen soil samples were analyzed for FSSGAM.

Two soil samples were analyzed for FSSALL.

Internal Chain of Custody:

Custody was maintained for the sample(s).

Data Package:

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

I certify that this data package is in compliance with the SOW, both technically and for completeness, for other than the conditions detailed above. Release of the data contained in this hard copy data package has been authorized by the Laboratory Manager or a designee, as verified by the following signature.

Cheryl Jones Project Manager GENERAL ENGINEERING LABORATORIES, LLC a Member of THE GEL GROUP,INC.

RO. Box 30712 - Charleston, SC 29417

• 2040 Savage Road (29407)

Phone (843) 556-8171

• Fax (843) 766-1178 ° www.gel.com 3

List of current GEL Certifications as of 06 September 2006 State Certification Alaska UST-062 Arizona AZ0668 Arkansas 88-0651 42D0904046 California ... 01 I5ICA.

Colorado GenEngLabs Connecticut PH-0o69 Dept. of Navy NFESC 413 EPA WG- 15J1 Florida/NELAP Georgia - - E87 156 E87156 (FL/NELAP)

Idaho N/A Illinois 200029 Indiana C-SC-01 Kansas E-10332 /

Kentucky 90129 Maryland 270 Massachusetts M-SCO12 Michigan 9903 Nevada SC12 New Jersey New York C02B 233 ............. I North Carolina North Carolina Drinking W 45709 Dakota .orth R-158 Oklahoma 9904 I Pennsylvania 6 8-48 5 South Carolina 10120001/10585001/10120002 Tennessee 02934-Texas TX213-2006A U.S. Dept. of Agriculture S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont N/A Virginia - 00151 .

Washington C223 4

Chain of Custody And Supporting Documentation 5

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-001 Major Chain of Custody Form N.2006 -@6-/9-Co. -

Connecticut Yankee Atomic Power Company 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 J 71O544/

1405440/

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

Priority: [] 30 D. E 14 D. 7] 7 D. <

Other:

Sample Designation Date Time Comment, Preservation Lab Sample ID 9304-02-001F 8/21/06 U TS G BP X

• 9304-02-001FS 8/21/06 13 i TS G BP X 9304-02-002F 8/21/06 lauy TS G BP X K9304-02-003F 8/21/06

• TS G BP X 9304-02-004F 8/21/06 I0lo4T TS G BP x 9304-02-004FS 8/21/06 TS G BP X O\ 9304-02-005F 8/21/06 1ODS TS G BP X 9304-02-006F 8/21/06 110-7 TS G BP X 9304-02-007F 8/21/06 1iao TS G BP X 9304-02-008F 8/21/06 1V);( TS G BP x NOTES: PO #: 002332 MSR #: 66 -/I 7 tV [ LTP QA D Radwaste QA D Non QA Samples Shipped Via: Internal Co tainer Z] Fed Ex Temp.: J4 Deg. C 0] Hand Custody Sealed?

Y 9- N El l) Reli ui, dBy( l Date/Time 2) eceiv d By Date/Time Custody Seal Intact?

tCj ~t/-zq/ot I S-v

~Other El~c 3)Relfnquished By Date/Time 4) Receive'ý By U Date/Time -7 16c, 5"37 99o(# YV N El 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 N.20-00 Connecticut Yankee Atomic Power Company No. 2006-00507 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Decommissioning -Analyses Requested l'b- U* O ly"' " 'On Contact Name & Phone: Comm**fies:"

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

General Engineering Laboratories 2040 Savage Road. Charleston SC. 29407 0 . .

843 556 8171. Attn. Cheryl Jones "/)

Priority: D30 D. Z 14 D. [ 7 D. 0 3D.  :

Container Sample Size-Sample Designation Date Time Media Type &Type Comment, Preservation Lab sample ID Code Code Code 9304-02-009F L TS G BP X _____ _______-_____:_"___.__

9304-02-OIOF 1)dIl L }" TS G BP X "__........

9304-02-01IF [,/?i/L /IYI, TS G BP X _ __ ___

9304-02-012F j j/ TS G BP X ....

9304-02-013F TS G BP X 9304-02-014F 7 ULb' T172 TS G BP X 9304-02-01SF S/d t4fb /lyl, TS G BP x VI~ 4 I 1----+-~---l +-~ I NOTES: PO #:002332 MSR: 06- t7q SSWP# NA Z LTP QA E] Radwaste QA D Non QA Samples Shipped Via: Internal Container SFed ExTm.: Dg D] ups D Hand Custody-Sealed?

YEV/ NO0 I) Rer qui By Date/Time 2) ecei d By Date/Time '.CstodySeal j~o el~I~coI~j/~.Y - L[E Other Intact?..

quished By Date/Time 4) Receiv d By Date/Time 7'7, 5"1;7 9o1," Ye", .

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 Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-00509 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 Type Size-Code Analytical Lab (Name, City, State): Code &Type Code On Site Counting Facility Priority: 1 30 D. M 14 D.

Other:

1] 7 D.

V_

Sample Designation Date Time Comment, Preservation Lab Sample ID 9304-02-016F 8/21/06 JL,2)* TS G 1LM X 19304-02-017F 8/21/06 -/3r Y TS G 1LM X NOTES: PO #: 002332 MSR #: Z LTP QA [D Radwaste QA 11 Non QA Samples Shipped Via: Internal Container El Fed Ex Temp.: '7/7 Deg. C D ups

[ Hand Custody Sealed?

Y 1-1 N E

1) Re* -edRceive y ate/Time Custody Seal Intact?

Re2n ,0eu e 2-a/i E] Other 3)Jlinquis ed By Date/Time 4) Received'1y Date/Time Bll't5"7_?7 of(,

L n YD N Bill of Lading #

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

Connecticut Yankee CY-ISC-SoW-OOI Statement of Work for Analytical Lab Services Figure 1. Sample Check-in List Date/Time Received': tZ0 0 9 I~5

>(

SDG#:

Work Order Number: D054o5q A Shipping Container ID:1 OQ6I 0 31 Chain of Custody#. 4CQI(- 9O

1. Custody Seals ori shipping container intact?.* Yes [,f No [ ]

2. Custody Seals dated and signed? Yesj[] No k].

3. Chain-of-Custody record present? Yes yrNo"°

.4. Cooler temperature e 3 'C O- a_

5. Vermiculite/packing materials is: Wet [ J Dry t*

6.I Number of samples in shipping container:.

7. Sample holding times exceeded? Yes [ No []

.8.. Samples have:'

_...ztape -hazard labels

. _2._::custody seals ... " i appropriate'sample labels

9. Samples are-

" *iin good condition . -"_leaking

-broken -have air bubbles

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

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

Telephoned to:* .. ,./ .0,_ By

_By- *

. -9

0 SAMPLE RECEIPT & REVIEW FORM I

PM use only Client: ( * %40A-- 1);I SDG/ARCOC/Work Order: (7/0,5 I Date Received. Z) Pt PM(A) Review (ensure non-confor g items are resolved prior to signing):

Sample Receipt Criteria

• Comments/Qualifiers (Required for Non-Conforming is)

I Shipping containers received intact Circle Applicable: seals broken damaged container leaking con er other (describe) and sealed? ,

Samples requiring cold Circle Coolant # ice bags blue ice ice none other describe) 2 preservation within (4 +/- 2 C)?

_Record preservation method.

3 Chain of custody documents included with shipment?

4 Sample containers intact and Circle Applicable: seals bro damaged container leaking container other (describe) sealed?

Samples requiring chemical Sample ID's co mners affected and observed pH:

5 preservation at proper pH?

6 VOA vials free of headspace Sam ID's and containers affected:

(defined as < 6mm bubble)? ___

Are Encore containers present?

7 (If yes, immediately deliver to VOA laboratory)

Samples received within holding 1 Id's and tests affected:

8time? _. . _ .... */

on COC ma ID's Sample ID's and containers affected:

on bottles?_________ _ _

-Date & time on C match date Sample ID's affected:

10 & time on boes?

11 Number "containers received Sample ID's affected:

mat number indicated on COC?

1 C form is properly signed in

- relinquished/received sections?

14 Air Bill ,Tracking #'s, &

Additional Comments b la'n Q w

• "* 'RSO RAD Receipt #

-- *If> x2 area background is observed on samples identified as "non-Suspected Hazard Information S *-- -"

Sa Ud I regulated/non-radioactive", contact the Radiation Safety group for further

_____________________fit investigation.

A RadiologicalClassification? / Maximum Counts Observed*: ffl') &.() ,t,4 T PCB Regulated? Comments:  !

Shipped as DOT Hazardous C Material? If yes, contact Waste / Hazard Class Shipped:

Manager or ESH Manager. UN#:

PM (or PMA) review of Hazard classification:_ _ _ _ Initials

• Date: -A"o__ci d.t.I V I

CONNECTICUT YANKEE RE: Soil PO# 002332 Work Order: 170543 SDG: MSR#06-1172 170543001 9304-0001-00IF 170543002 9304-0001-002F 170543003 9304-0001-002FS 170543004 9304-0001-003F 170543005 9304-0001-004F 170543006 9304-0001-005F 170543007 9304-0001-009F 170543008 9304-0001-OIOF 170543009 9304-0001-01OFS 170543010 9304-0001-01 IF 170543011 9304-0001-012F 170543012 9304-0001-014F 170543013 9304-0001-015F 170543014 9304-0001-016F 170543015 9304-0001-017F 170543016 9304-0001-018F 170543017 9304-0001-019F 170543018 9304-0001-020F 170543019 9304-0001-021F 170543020 9304-0001-008F 170543021 9304-0001-013F 11

RADIOLOGICAL ANALYSIS 12

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

Work Order 170544 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: 564247 Prep Batch Number: 563877 Dry Soil Prep GL-RAD-A-021 Batch Number: 563875 Sample ID Client ID 170544018 9304-0002-005F 170544019 9304-0002-008F 1201173419 Method Blank (MB) 1201173420 170543020(9304-0001-008F) Sample Duplicate (DUP) 1201173421 170543020(9304-0001-008F) Matrix Spike (MS) 1201173422 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-01 1 REV# 14.

Calibration Information:

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

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

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

13

Quality Control (QCQ Information:

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

Designated QC The following sample was used for QC: 170543020 (9304-0001-008F).

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 Batch was cleaned-up and recounted due to Thorium interference.

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 Qualifier Reason Analyte Sample X Results may be biased high due to Thorium Americium-241 170544018 inteference in the sample.

170544019 1201173420 Curium-243/244 170544018 Method/Analysis Information 14

Product: Alphaspec 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: 564258 Prep Batch Number: 563877 Dry Soil Prep GL-RAD-A-021 Batch Number: 563875 Sample ID Client ID 170544018 9304-0002-005F 170544019 9304-0002-008F 1201173423 Method Blank (MB) 1201173424 170543020(9304-0001-008F) Sample Duplicate (DUP) 1201173425 170543020(9304-0001-008F) Matrix Spike (MS) 1201173426 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-011 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 volume is representative of the sample volume in this batch.

Designated QC The following sample was used for QC: 170543020 (9304-0001-008F).

QC Information 15

All of the QC samples met the required acceptance limits.

Technical Information:

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

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

Sample Re-prep/Re-analysis Sample 1201173423 (MB) was recounted due to a negative result greater than three times the error.

Miscellaneous Information:

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

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

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Pu241, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu-I I-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 564259 Prep Batch Number: 563877 Dry Soil Prep GL-RAD-A-021 Batch Number: 563875 16

Sample ID Client ID 170544018 9304-0002-005F 170544019 9304-0002-008F 1201173427 Method Blank (MB) 1201173428 170543020(9304-0001-008F) Sample Duplicate (DUP) 1201173429 170543020(9304-0001-008F) Matrix Spike (MS) 1201173430 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-035 REV# 8.

Calibration Information:

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

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

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

Quality Control (QC) Information:

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

Designated QC The following sample was used for QC: 170543020 (9304-0001-008F).

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 17

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 Product: Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Analytical Method: EML HASL 300, 4.5.2.3 Prep Method: Dry Soil Prep Analytical Batch Number: 563988 Prep Batch Number: 563875 18

Sample ID Client ID 170544001 9304-0002-001F 170544002 9304-0002-001 FS 170544003 9304-0002-002F 170544004 9304-0002-003F 170544005 9304-0002-004F 170544006 9304-0002-004FS 170544007 9304-0002-006F 170544008 9304-0002-007F 170544009 9304-0002-009F 170544010 9304-0002-01 OF 170544011 9304-0002-01 IF 170544012 9304-0002-012F 170544013 9304-0002-013F 170544014 9304-0002-014F 170544015 9304-0002-015F 170544016 9304-0002-016F 170544017 9304-0002-017F 170544018 9304-0002-005F 170544019 9304-0002-008F 1201172834 Method Blank (MB) 1201172835 170543021(9304-0001-013F) Sample Duplicate (DUP) 1201172836 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.

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: 170543021 (9304-0001-013F).

QC Information 19

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 The duplicate and the sample 1201172835 (9304-0001-013F)did not meet the relative percent difference requirement for Bi-214 and Ra-226, but they do meet the relative error ratio requirement with a value of 1.79394.

Qualifier information Qualifier Reason Analyte Sample U' Data rejected due to high peak-width. Bismuth-212 170544007 UI Data rejected due to interference. Europium- 155 170544014 170544015 U' Data rejected due to low abundance. Cesium- 134 170544002 170544005 170544006 170544007 170544009 170544012 170544013 170544014 170544018 Silver-108m 170544003 20

Method/Analysis Information Product: GFPC, Sr90, solid-ALL FSS Analytical Method: EPA 905.0 Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 564153 Prep Batch Number: 563877 Dry Soil Prep GL-RAD-A-021 Batch Number: 563875 Sample ID Client ID 170544018 9304-0002-005F 170544019 9304-0002-008F 1201173179 Method Blank (MB) 1201173180 170544018(9304-0002-005F) Sample Duplicate (DUP) 1201173181 170544018(9304-0002-005F) Matrix Spike (MS) 1201173182 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 (0C) Information:

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

Designated QC 21

The following sample was used for QC: 170544018 (9304-0002-005F).

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.

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

Miscellaneous Information:

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

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Tc99, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Tc-02-RC Modified Analytical Batch Number: 564445 Sample ID Client ID 170544018 9304-0002-005F 170544019 9304-0002-008F 1201173840 Method Blank (MB) 1201173841 170544018(9304-0002-005F) Sample Duplicate (DUP) 1201173842 170544018(9304-0002-005F) Matrix Spike (MS) 1201173843 Laboratory Control Sample (LCS) 22

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-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 (Q0 Information:

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

Designated QC The following sample was used for QC: 170544018 (9304-0002-005F).

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

Technical Information:

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

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

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

Miscellaneous Information:

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

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

23

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Fe55, Solid-ALL FSS Analytical Method: DOE RESL Fe- 1, Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 564451 Prep Batch Number: 563877 Dry Soil Prep GL-RAD-A-021 Batch Number: 563875 Sample ID Client ID 170544018 9304-0002-005F 170544019 9304-0002-008F 1201173858 Method Blank (MB) 1201173859 170543020(9304-0001-008F) Sample Duplicate (DUP) 1201173860 170543020(9304-0001-008F) Matrix Spike (MS) 1201173861 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-040 REV# 3.

Calibration Information:

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

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

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

Quality Control (OC) Information:

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

24

Designated QC The following sample was used for QC: 170543020 (9304-0001-008F).

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.

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Ni63, Solid-ALL FSS Analytical Method: DOE RESL Ni-1, Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 564452 Prep Batch Number: 563877 Dry Soil Prep GL-RAD-A-021 Batch Number: 563875 25

Sample ID Client ID 170544018 9304-0002-005F 170544019 9304-0002-008F 1201173872 Method Blank (MB) 1201173873 170543020(9304-0001-008F) Sample Duplicate (DUP) 1201173874 170543020(9304-0001-008F) Matrix Spike (MS) 1201173875 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: 170543020 (9304-0001-008F).

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 26

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: 564447 Sample ID Client ID 170544018 9304-0002-005F 170544019 9304-0002-008F 1201173844 Method Blank (MB) 1201173845 170544018(9304-0002-005F) Sample Duplicate (DUP) 1201173846 170544018(9304-0002-005F) Matrix Spike (MS) 1201173847 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-002 REV# 13.

Calibration Information:

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

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

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

Quality Control (QC) Information:

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

27

Designated QC The following sample was used for QC: 170544018 (9304-0002-005F).

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 1201173846 (9304-0002-005F) and 1201173847 (LCS) were recounted due to low/high recovery.

Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. The following NCR was generated for this SDG:

NCR 356177 was generated due to Container scanning event for custody missed. 1. Container scanning event for custody missed: The analyst did not scan the samples intot he batch prior to analysis, however the samples did remain in their custody at all times. 1. The error has been corrected and the analyst has been instructed on proper scanning procedures. Reporting results Additional Comments Additional comments were not required for this sample set.

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint C14, Solid AI1,FSS Analytical Method: EPA EERF C-01 Modified Analytical Batch Number: 564449 28

Sample ID Client ID 170544018 9304-0002-005F 170544019 9304-0002-008F 1201173848 Method Blank (MB) 1201173849 170544019(9304-0002-008F) Sample Duplicate (DUP) 1201173850 170544019(9304-0002-008F) Matrix Spike (MS) 1201173851 Laboratory Control Sample (LCS)

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

Calibration Information:

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

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

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

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: 170544019 (9304-0002-008F).

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

Technical Information:

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

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

Sample Re-prep/Re-analysis Sample 1201173849 (9304-0002-008F) was recounted due to a negative result greater than three times the error.

Miscellaneous Information:

NCR Documentation 29

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.

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: U - .91"4 30

General Engineering Laboratories NCR Report No.: 356177 Form GEL-NCR Revision No.: 1 Rev. 06/05 COMPANY - WIDE NONCONFORMANCE REPORT Mo.Day Yr. Division: Quality Criteria: Type:

08-SEP-06 Radiochemistry Specifications Process Instrument Type: Test / Method: Matrix Type: Client Code:

LSC EPA 906.0 Modified Solid YANK Batch ID: Sample Numbers:

564447 See Below Potentially affected work order(s)(SDG): 170543(MSR#06-1172),170544(MSR#06-1174),170683 Application Issues:

Container scanning event for custody missed Specification and Requirements NRG Disposition:

Nonconformance

Description:

1. Container scanning event for custody missed: The analyst did not scan 1. The error has been corrected and the analyst has been instructed on the samples intot he batch prior to analysis, however the samples did proper scanning procedures. Reporting results remain in their custody at all times.

Originator's Name: Data Validator/Group Leader:

Kenshalla Oston 08-SEP-06 Melanie Aycock 08-SEP-06 Quality Review:

Director:

Page 1 31

SAMPLE DATA

SUMMARY

32

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

Client SDG: MSR#06-1174 GEL Work Order: 170544 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 X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier ND The analyte concentration is not detected above the detection limit.

The above sample is reported on a dry weight basis except where prohibited by the analytical procedure.

Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the Certificate of Analysis.

This data report has been prepared and reviewed in accordance with General Engineering Laboratories, LLC standard operating procedures. Please direct any questions to your Project Manager, Cheryl Jones.

Reviewed by 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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-OOIF Project: YANK01204 Sample ID: 170544001 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 5.39%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.675 +/-0.203 0.0819 +/-0.203 0.164 pCi/g MJH1 09/10/06 1502 563988 Americium-241 U 0.0358 +/-0.0434 0.0307 +/-0.0434 0.0614 pCi/g Bismuth-212 0.444 +/-0.285 0.171 +/-0.285 0.342 pCi/g Bismuth-214 0.597 +/-0.116 0.0419 +/-0.116 0.0838 pCi/g Cesium-134 U 0.024 +/-0.0298 0.0277 +/-0.0298 0.0553 pCi/g Cesium-137 U 0.0159 +/-0.0266 0.0245 +/-0.0266 0.049 pCi/g Cobalt-60 U 0.00881 +/-0.0345 0.0259 +/-0.0345 0.0518 pCi/g Europium-152 U 0.0442 +/-0.0483 0.0481 +/-0.0483 0.0961 pCi/g Europium-154 U 0.0239 +/-0.087 0.0755 +/-0.087 0.151 pCi/g Europium-155 U 0.0074 +/-0.0551 0.0494 +/-0.0551 0.0987 pCi/g Lead-212 0.693 +/-0.085 0.0295 +/-0.085 0.059 pCi/g Lead-214 0.643 +/-0.102 0.039 +/-0.102 0.078 pCi/g Manganese-54 U -0.00297 +/-0.0284 0.0209 +/-0.0284 0.0418 pCi/g Niobium-94 U -0.0154 +/-0.0238 0.0198 +/-0.0238 0.0396 pCi/g Potassium-40 10.9 +/-1.04 0.234 +/-1.04 0.468 pCi/g Radium-226 0.597 +/-0.116 0.0419 +/-0.116 0.0838 pCi/g Silver-108m U -0.0115 +/-0.0218 0.0182 +/-0.0218 0.0365 pCi/g Thallium-208 0.250 +/-0.0482 0.0195 +/-0.0482 0.039 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 08/30/06 1546 563875 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 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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-OOIF Proiect: YANK01204 Sample ID: 170544001 Client ID: YANK001 Vol. Recv.:

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

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

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

35

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-001FS Project: YANK01204 Sample ID: 170544002 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21 -AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 5.13%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.678 +/-0.158 0.056 +/-0.158 0.112 pCi/g MJHI 09/10/06 1658 563988 Americium-241 U 0.0182 +/-0.0696 0.0564 +/-0.0696 0.113 pCi/g Bismuth-212 0.506 +/-0.234 0.129 +/-0.234 0.258 pCi/g Bismuth-214 0.572 +/-0.096 0.0306 +/-0.096 0.0612 pCi/g Cesium-134 UI 0.00 +/-0.0279 0.0205 +/-0.0279 0.0409 pCi/g Cesium-137 U 0.0245 +/-0.0316 0.0187 +/-0.0316 0.0373 pCi/g Cobalt-60 U 0.0139 +/-0.0196 0.0178 +/-0.0196 0.0356 pCi/g Europium-152 U 0.0427 +/-0.078 0.0434 +/-0.078 0.0868 pCi/g Europium-154 U -0.0549 +/-0.0651 0.0494 +/-0.0651 0.0988 pCi/g Europium-155 U 0.0421 +/-0.0556 0.0508 +/-0.0556 0.101 pCi/g Lead-212 0.707 +/-0.0794 0.0271 +/-0.0794 0.0542 pCi/g Lead-214 0.610 +/-0.0923 0.0321 +/-0.0923 0.0641 pCi/g Manganese-54 U -0.00669 +/-0.0195 0.0165 +/-0.0195 0.0329 pCi/g Niobium-94 U -0.00231 +/-0.0176 0.0153 +/-0.0176 0.0306 pCi/g Potassium-40 11.4 +/-1.03 0.171 +/-1.03 0.341 pCi/g Radium-226 0.572 +/-0.096 0.0306 +/-0.096 0.0612 pCi/g Silver-108m U -0.0138 +/-0.017 0.014 +/-0.017 0.0279 pCi/g Thallium-208 0.236 +/-0.0442 0.0142 +/-0.0442 0.0284 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 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:

• g A quality control analyte recovery is outside of specified acceptance criteria Result is less than value reported 36

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-OOIFS Project: YANK01204 Sample ID: 170544002 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

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

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

37

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-002F Proiect: YANK01204 Sample ID: 170544003 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 5.38%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.818 +/-0.198 0.0582 +/-0.198 0.116 pCi/g MJHI 09/11/06 0828 563988 Americium-241 U 0.000923 +/-0.0732 0.058 +/-0.0732 0.116 pCi/g Bismuth-212 0.483 +/-0.303 0.133 +/-0.303 0.265 pCi/g Bismuth-214 0.612 +/-0.0992 0.034 +/-0.0992 0.0679 pCi/g Cesium-134 U 0.018 +/-0.0233 0.0213 +/-0.0233 0.0426 pCi/g Cesium-137 U -0.00836 +/-0.0227 0.0185 +/-0.0227 0.037 pCi/g Cobalt-60 U 0.013 +/-0.0232 0.0183 +/-0.0232 0.0365 pCi/g Europium-152 U 0.0263 +/-0.0662 0.0491 +/-0.0662 0.098 pCi/g Europium-154 U -0.00379 +/-0.0789 0.0608 +/-0.0789 0.121 pCi/g Europium-155 U 0.0654 +/-0.0695 0.0487 +/-0.0695 0.0973 pCi/g Lead-212 0.686 +/-0.0817 0.0278 +/-0.0817 0.0555 pCi/g Lead-214 0.648 +/-0.0951 0.035 +/-0.0951 0.070 pCi/g Manganese-54 U 0.0036 +/-0.0219 0.0192 +/-0.0219 0.0383 pCi/g Niobium-94 U 0.0118 +/-0.0191 0.0174 +/-0.0191 0.0348 pCi/g Potassium-40 11.4 +/-1.08 0.139 +/-1.08 0.278 pCi/g Radium-226 0.612 +/-0.0992 0.034 +/-0.0992 0.0679 pCi/g Silver-108m UI 0.00 +/-0.0296 0.0152 +/-0.0296 0.0304 pCi/g Thallium-208 0.230 +/-0.0438 0.0162 +/-0.0438 0.0323 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 08/30/06 1546 563875 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 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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-002F Project: YANK01204 Sample ID: 170544003 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1

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

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

39

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-003F Project: YANK01204 Sample ID: 170544004 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 3.93%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch N' Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.753 +/-0.140 0.0503 +/-0.140 0.111 pCi/g MJHl 09/11/06 0927 563988 Americium-241 U 0.0553 +/-0.0789 0.0697 +/-0.0789 0.145 pCi/g Bismuth-212 0.476 +/-0.226 0.115 +/-0.226 0.251 pCi/g Bismuth-214 0.466 +/-0.0939 0.0318 +/-0.0939 0.0679 pCi/g Cesium-134 U 0.0381 +/-0.0291 0.0215 +/-0.0291 0.0461 pCi/g Cesium-137 U -0.00316 +/-0.0183 0.0156 +/-0.0183 0.0338 pCi/g Cobalt-60 U -7.740E- +/-0.0179 0.0153 +/-0.0179 0.0348 pCi/g 05 Europium-152 U 0.00612 +/-0.0483 0.0414 +/-0.0483 0.0876 pCi/g Europium-154 U 0.0129 +/-0.0639 0.0564 +/-0.0639 0.124 pCi/g Europium-155 U 0.000165 +/-0.0506 0.0464 +/-0.0506 0.0964 pCi/g Lead-212 0.609 +/-0.0573 0.0246 +/-0.0573 0.0514 pCi/g Lead-214 0.607 +/-0.0855 0.0303 +/-0.0855 0.064 pCi/g Manganese-54 U 0.0223 +/-0.0179 0.0173 +/-0.0179 0.0373 pCi/g Niobium-94 U -0.00811 +/-0.0164 0.0135 +/-0.0164 0.0293 pCi/g Potassium-40 11.6 +/-0.913 0.135 +/-0.913 0.311 pCi/g Radium-226 0.466 +/-0.0939 0.0318 +/-0.0939 0.0679 pCi/g Silver-108m U -0.00366 +/-0.0149 0.0131 +/-0.0149 0.028 pCi/g Thallium-208 0.177 +/-0.0462 0.0171 +/-0.0462 0.0366 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 JMBI1 08/30/06 1546 563875 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

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

< Result is less than value reported 40

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-003F Project: YANK01204 Sample ID: 170544004 Client ID: YANK001 Vol. Recv.:

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

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

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

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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-004F Project: YANK01204 Sample ID: 170544005 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 3.21%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1I Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.758 +/-0.170 0.0623 +/-0.170 0.135 pCi/g MJHI 09/11/06 1024 563988 Americium-241 U 0.0922 +/-0.106 0.0902 +/-0.106 0.187 pCi/g Bismuth-212 0.506 +/-0.275 0.121 +/-0.275 0.263 pCi/g Bismuth-214 0.552 +/-0,0891 0.0269 +/-0.0891 0.058 pCi/g Cesium-134 UI 0.00 +/-0.0271 0.0219 +/-0.0271 0.0469 pCi/g Cesium-137 U 0.00831 +/-0.0196 0.0175 +/-0.0196 0.0375 pCi/g Cobalt-60 U 0.0253 +/-0.0222 0.0202 +/-0.0222 0.0445 pCi/g Europium-152 U -0.0134 +/-0.0538 0.045 +/-0.0538 0.0949 pCi/g Europium-154 U 0.0738 +/-0.0451 0.0522 +/-0.0451 0.116 pCi/g Europium-155 U 0.0703 +/-0.0546 0.0535 +/-0.0546 0.111 pCi/g Lead-212 0.652 +/-0.0609 0.0259 +/-0.0609 0.0542 pCi/g Lead-214 0.761 +/-0.0968 0.030 +/-0.0968 0.0635 pCi/g Manganese-54 U -0.00241 +/-0.0206 0.0171 +/-0.0206 0.0369 pCi/g Niobium-94 U 0.0106 +/-0.0173 0.0156 +/-0.0173 0.0335 pCi/g Potassium-40 11.0 +/-0.854 0.129 +/-0.854 0.300 pCi/g Radium-226 0.552 +/-0.0891 0.0269 +/-0.0891 0.058 pCi/g Silver-108m U -0.0156 +/-0.0165 0.0137 +/-0.0165 0.0294 pCi/g Thallium-208 0.187 +/-0.0409 0.0158 +/-0.0409 0.0339 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 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 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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-004F Proiect: YANK01204 Sample ID: 170544005 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

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

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

43

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-004FS Proiect: YANK01204 Sample ID: 170544006 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 3.03%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.574 +/-0.147 0.0692 +/-0.147 0.148 pCi/g MJH1 09/11/06 1024 563988 Americium-241 U 0.0183 +/-0.0795 0.0674 +/-0.0795 0.140 pCi/g Bismuth-212 0.309 +/-0.290 0.126 +/-0.290 0.270 pCi/g Bismuth-214 0.497 +/-0.0896 0.0293 +/-0.0896 0.0625 pCi/g Cesium-134 UI 0.00 +/-0.0299 0.0215 +/-0.0299 0.0456 pCi/g Cesium-137 U -0.00249 +/-0.0201 0.0174 +/-0.0201 0.037 pCi/g Cobalt-60 U 0.00133 +/-0.0188 0.0161 +/-0.0188 0.0359 pCi/g Europium-152 U 0.0114 +/-0.0518 0.0461 +/-0.0518 0.0967 pCi/g Europium-154 U 0.00293 +/-0.0637 0.0546 +/-0.0637 0.119 pCi/g Europium-155 U 0.0334 +/-0.055 0.0507 +/-0.055 0.105 pCi/g Lead-212 0.665 +/-0.0616 0.0256 +/-0.0616 0.0532 pCi/g Lead-214 0.609 +/-0.0859 0.0303 +/-0.0859 0.0639 pCi/g Manganese-54 U -0.00658 +/-0.0205 0.017 +/-0.0205 0.0365 pCi/g Niobium-94 U -0.0153 +/-0.0173 0.0139 +/-0.0173 0.0298 pCi/g Potassium-40 10.3 +/-0.814 0.151 +/-0.814 0.339 pCi/g Radium-226 0.497 +/-0.0896 0.0293 +/-0.0896 0.0625 pCi/g Silver-108m U 0.0065 +/-0.0163 0.0144 +/-0.0163 0.0306 pCi/g Thallium-208 0.178 +/-0.0427 0.0175 +/-0.0427 0.0371 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 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 44

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-004FS Project: YANKO 1204 Sample ID: 170544006 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A

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

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

45

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-006F Proiect: YANKO 1204 Sample ID: 170544007 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 4.15%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.619 +/-0.171 0.0633 +/-0.171 0.137 pCi/g MJHI 09/11/06 1025 563988 Americium-241 U -0.0339 +/-0.085 0.0741 +/-0.085 0.154 pCi/g Bismuth-212 UI 0.00 +/-0.302 0.123 +/-0.302 0.266 pCi/g Bismuth-214 0.477 +/-0,0795 0.0367 +/-0.0795 0.078 pCi/g Cesium-134 UI 0.00 +/-0.0469 0.0218 +/-0.0469 0.0468 pCi/g Cesium-137 U 0.00955 +/-0.0215 0.0195 +/-0.0215 0.0416 pCi/g Cobalt-60 U 0.00527 +/-0.0216 0.0192 +/-0.0216 0.0425 pCi/g Europium-152 U -0.0287 +/-0.0563 0.0471 +/-0.0563 0.0993 pCi/g Europium-154 U -0.0554 +/-0.0564 0.042 +/-0.0564 0.0953 pCi/g Europium-155 U 0.00655 +/-0.0541 0.0516 +/-0.0541 0.107 pCi/g Lead-212 0.641 +/-0.0603 0.0275 +/-0.0603 0.0573 pCi/g Lead-214 0.660 +/-0.0925 0.0338 +/-0.0925 0.0712 pCi/g Manganese-54 U 0.00406 +/-0.0232 0.0178 +/-0.0232 0.0385 pCi/g Niobium-94 U 0.0166 +/-0.0221 0.0153 +/-0.0221 0.0329 pCi/g Potassium-40 11.3 +/-0.916 0.152 +/-0.916 0.346 pCi/g Radium-226 0.477 +/-0.0795 0.0367 +/-0.0795 0.078 pCi/g Silver-108m U -0.00541 +/-0.0191 0.0159 +/-0.0191 0.0337 pCi/g Thallium-208 0.228 +/-0.0414 0.018 +/-0.0414 0.0385 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 08/30/06 1546 563875 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

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

< Result is less than value reported 46

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-006F Proiect: YANK01204 Sample ID: 170544007 Client ID: YANK00I Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A

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

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

47

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-007F Project: YANK01204 Sample ID: 170544008 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 4.26%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.611 +/-0.138 0.061 +/-0.138 0.132 pCi/g MJHI 09/11/06 1026 563988 Americium-241 U 0.0231 +/-0.104 0.0713 +/-0.104 0.148 pCi/g Bismuth-212 0.351 +/-0.184 0.141 +/-0.184 0.302 pCi/g Bismuth-214 0.502 +/-0.0794 0.0338 +/-0.0794 0.0717 pCi/g Cesium-134 U 0.0371 +/-0.0272 0.0215 +/-0.0272 0.0459 pCi/g Cesium-I 37 U 0.0168 +/-0.0266 0.0178 +/-0.0266 0.0381 pCi/g Cobalt-60 U -0.00686 +/-0.0214 0.0173 +/-0.0214 0.0385 pCi/g Europium-152 U -0.0104 +/-0.0497 0.0431 +/-0.0497 0.0909 pCi/g Europium-154 U -0.014 +/-0.065 0.0539 +/-0.065 0.118 pCi/g Europium-155 U 0.0129 +/-0.054 0.0493 +/-0.054 0.102 pCi/g Lead-212 0.668 +/-0.0589 0.0242 +/-0.0589 0.0506 pCi/g Lead-214 0.519 +/-0.0803 0.0312 +/-0.0803 0.0658 pCi/g Manganese-54 U 0.0134 +/-0.0217 0.0195 +/-0.0217 0.0416 pCi/g Niobium-94 U -0.015 +/-0.0196 0.016 +/-0.0196 0.0341 pCi/g Potassium-40 10.4 +/-0.868 0.169 +/-0.868 0.376 pCi/g Radium-226 0.502 +/-0.0794 0.0338 +/-0.0794 0.0717 pCi/g Silver-108m U -0.00476 +/-0.0175 0.0148 +/-0.0175 0.0313 pCi/g Thallium-208 0.170 +/-0.0567 0.0155 +/-0.0567 0.0331 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

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

< Result is less than value reported 48

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-007F Proiect: YANK01204 Sample ID: 170544008 Client ID: YANKOO Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

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

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

49

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-009F Project: YANK01204 Sample ID: 170544009 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21 -AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 4.23%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1\

Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.04 +/-0.171 0.0603 +/-0.171 0.130 pCi/g MJHI 09/11/06 1026 563988 Americium-241 U -0.00988 +/-0.0968 0.0825 +/-0.0968 0.170 pCi/g Bismuth-212 0.588 +/-0.225 0.138 +/-0.225 0.294 pCi/g Bismuth-214 0.690 +/-0.089 0.0307 +/-0.089 0.0655 pCi/g Cesium-134 UI 0.00 +/-0.0287 0.0239 +/-0.0287 0.0506 pCi/g Cesium-137 U -0.00814 +/-0.0216 0.018 +/-0.0216 0.0384 pCi/g Cobalt-60 U -0.00282 +/-0.0227 0.0191 +/-0.0227 0.0419 pCi/g Europium-152 U -0.0135 +/-0.0538 0.0483 +/-0.0538 0.101 pCi/g Europium-154 U -0.059 +/-0.0672 0.0519 +/-0.0672 0.114 pCi/g Europium-155 U 0.0604 +/-0.0587 0.0561 +/-0.0587 0.116 pCi/g Lead-212 1.00 +/-0.0664 0.0255 +/-0.0664 0.0531 pCi/g Lead-214 0.803 +/-0.0888 0.0337 +/-0.0888 0.0708 pCi/g Manganese-54 U 0.030 +/-0.0272 0.0183 +/-0.0272 0.0392 pCi/g Niobium-94 U 0.0119 +/-0.0173 0.0157 +/-0.0173 0.0335 pCi/g Potassium-40 17.0 +/-1.07 0.153 +/-1.07 0.344 pCi/g Radium-226 0.690 +/-0.089 0.0307 +/-0.089 0.0655 pCi/g Silver-108m U -0.011 +/-0.017 0.0145 +/-0.017 0.0309 pCi/g Thallium-208 0.337 +/-0.0483 0.017 +/-0.0483 0.0361 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

• A quality control analyte recovery is outside of specified acceptance criteria Result is less than value reported 50

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-009F Project: YANK01204 Sample ID: 170544009 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

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

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

51

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-01OF Project: YANK01204 Sample ID: 170544010 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 5.58%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.921 +/-0.221 0.0758 +/-0.221 0.161 pCi/g MJHI 09/11/06 1027 563988 Americium-241 U 0.0632 +/-0.150 0.0925 +/-0.150 0.190 pCi/g Bismuth-212 0.632 +/-0.394 0,154 +/-0.394 0.326 pCi/g B3ismuth-214 0.726 +/-0.0865 0.0364 +/-0.0865 0.0769 pCi/g Cesium-134 U 0.0179 +/-0.0305 0.0255 +/-0.0305 0.0538 pCi/g Cesium-137 U -0.00218 +/-0.0238 0.0206 +/-0.0238 0.0436 pCi/g Cobalt-60 U -0.00271 +/-0.0225 0.0183 +/-0.0225 0.0405 pCi/g Europium-152 U 0.0279 +/-0.0609 0.0535 +/-0.0609 0.112 pCi/g Europium-154 U -0.0123 +/-0.103 0.0721 +/-0.103 0.155 pCi/g Europium-155 U 0.105 +/-0.0774 0.0629 +/-0.0774 0.129 pCi/g Lead-212 1.07 +/-0.0714 0.031 +/-0.0714 0.0641 pCi/g Lead-214 0.767 +/-0.0815 0.0404 +/-0.0815 0.0841 pCi/g Manganese-54 U 0.00481 +/-0.0236 0.0205 +/-0.0236 0.0437 pCi/g Niobium-94 U -0.00717 +/-0.0229 0.0194 +/-0.0229 0.041 pCi/g Potassium-40 18.2 +/-1.10 0.180 +/-1.10 0.398 pCi/g Radium-226 0.726 +/-0.0865 0.0364 +/-0.0865 0.0769 pCi/g Silver-108m U 0.000781 +/-0.021 0.0178 +/-0.021 0.0374 pCi/g Thallium-208 0.326 +/-0.0511 0.0202 +/-0.0511 0.0426 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 08/30/06 1546 563875 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

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

< Result is less than value reported 52

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-OIOF Proiect: YANK01204 Sample ID: 170544010 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1l

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

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

53

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analyvis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-01 IF Project: YANK01204 Sample ID: 170544011 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 3.94%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.08 +/-0.154 0.0509 +/-0.154 0.108 pCi/g MJH1 09/11/06 1027 563988 Americium-241 U -0.0745 +/-0.139 0.0909 +/-0.139 0.188 pCi/g Bismuth-212 0.669 +/-0.219 0.110 +1-0.219 0.233 pCi/g Bismuth-214 0.630 +/-0.0788 0.0285 +/-0.0788 0.060 pCi/g Cesium-134 U 0.0357 +/-0.0311 0.0201 +/-0.0311 0.042 pCi/g Cesium-137 U 0.00279 +/-0.0196 0.0165 +/-0.0196 0.0346 pCi/g Cobalt-60 U -0.00276 +/-0.0182 0.0153 +/-0.0182 0.0332 pCi/g Europium-152 U 0.00275 +/-0.0446 0.0396 +/-0.0446 0.0828 pCi/g Europium-154 U -0.00394 +/-0.0583 0.0499 +/-0.0583 0.107 pCi/g Europium-155 U 0.0531 +/-0.0588 0.0549 +/-0.0588 0.113 pCi/g Lead-212 0.969 +/-0.0598 0.0246 +/-0.0598 0.0508 pCi/g Lead-214 0.753 +/-0.0824 0.0251 +/-0.0824 0.0527 pCi/g Manganese-54 U 0.0227 +/-0.0244 0.0149 +/-0.0244 0.0315 pCi/g Niobium-94 U 0.00322 +/-0.016 0.0142 +/-0.016 0.0298 pCi/g Potassium-40 17.6 +/-0.830 0.122 +/-0.830 0.268 pCi/g Radium-226 0.630 +/-0.0788 0.0285 +/-0.0788 0.060 pCi/g Silver-108m U 0.00513 +/-0.0157 0.0139 +/-0.0157 0.029 pCi/g Thallium-208 0.319 +/-0.038 0.0146 +/-0.038 0.0307 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-01IF Project: YANK01204 Sample ID: 170544011 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

> 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.

55

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-012F Proiect: YANKO 1204 Sample ID: 170544012 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 5.14%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch IN Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.623 +/-0.185 0.042 +/-0.185 0.0898 pCi/g MJHI 09/11/06 1029 563988 Americium-241 U 0.0102 +/-0.0652 0.0544 +/-0.0652 0.112 pCi/g Bismuth-212 0.659 +/-0.223 0.0953 +/-0.223 0.203 pCi/g Bismuth-214 0.659 +/-0.086 0.0248 +/-0.086 0.0521 pCi/g Cesium-134 UI 0.00 +/-0.0289 0.0169 +/-0.0289 0.0354 pCi/g Cesium-137 U 0.0107 +/-0.0165 0.0144 +/-0.0165 0.0303 pCi/g Cobalt-60 U 0.0242 +/-0.0158 0.0137 +/-0.0158 0.0295 pCi/g Europium-152 U -0.00833 +/-0.0457 0.0351 +/-0.0457 0.0733 pCi/g Europium-154 U -0.0139 +/-0.0503 0.0408 +/-0.0503 0.0875 pCi/g Europium-155 U 0.00435 +/-0.049 0.0439 +/-0.049 0.0905 pCi/g Lead-212 0.683 +/-0.0495 0.0217 +/-0.0495 0.0449 pCi/g Lead-214 0.662 +/-0.0725 0.0254 +/-0.0725 0.053 pCi/g Manganese-54 U 0.0123 +/-0.0166 0,0151 +/-0.0166 0.0317 pCi/g Niobium-94 U 0.00425 +/-0.0142 0,0127 +/-0.0142 0.0268 pCi/g Potassium-40 12.7 +/-0.722 0.127 +/-0.722 0.276 pCi/g Radium-226 0.659 +/-0.086 0.0248 +/-0.086 0.0521 pCi/g Silver-108m U -0.00212 +/-0.0134 0.0116 +/-0.0134 0.0243 pCi/g Thallium-208 0.264 +/-0.0342 0.0121 +/-0.0342 0.0255 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 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 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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-012F Project: YANK01204 Sample ID: 170544012 Client ID: YANKOOI Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

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

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

57

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-013F Project: YANKO 1204 Sample ID: 170544013 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 3.94%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch A Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.747 +/-0.185 0.0859 +/-0.185 0.183 pCi/g MJHI 09/11/06 1039 563988 Americium-241 U 0.0204 +/-0.0351 0.0319 +/-0.0351 0.0655 pCi/g Bismuth-212 U 0.352 +/-0.306 0.179 +/-0.306 0.379 pCi/g Bismuth-214 0.586 +/-0.148 0.0447 +/-0.148 0.0941 pCi/g Cesium-134 UI 0.00 +/-0.0456 0.0303 +/-0.0456 0.0638 pCi/g Cesium-137 U 0.0438 +/-0.0358 0.0235 +/-0.0358 0.0497 pCi/g Cobalt-60 U 0.0222 +/-0.0284 0.0257 +/-0.0284 0.0557 pCi/g Europium-152 U -0.0238 +/-0.0656 0.0546 +/-0.0656 0.114 pCi/g Europium-154 U -0.0278 +/-0.0864 0.0704 +/-0.0864 0.152 pCi/g Europium-155 U 0.0512 +/-0.075 0.0485 +/-0,075 0.100 pCi/g Lead-212 0.582 +/-0.0781 0.0395 +/-0.0781 0.0814 pCi/g Lead-214 0.671 +/-0.0942 0.0388 +/-0.0942 0.0813 pCi/g Manganese-54 U 0.0267 +/-0.0273 0.0246 +/-0.0273 0.0521 pCi/g Niobium-94 U-0.000123 +/-0.0243 0.0207 +/-0.0243 0.0438 pCi/g Potassium-40 12.8 +/-1.03 0.215 +/-1.03 0.471 pCi/g Radium-226 0.586 +/-0.148 0.0447 +/-0.148 0.0941 pCi/g Silver-108m U -0.00186 +/-0.0214 0.019 +/-0.0214 0.040 pCi/g Thallium-208 0,254 +/-0.0532 0.0232 +/-0.0532 0.049 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 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.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-013F Project: YANKO 1204 Sample ID: 170544013 Client ID: YANKOOI Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

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

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

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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-014F Project: YANK01204 Sample ID: 170544014 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 3.65%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.978 +/-0.176 0.0653 +/-0.176 0.141 pCi/g MJH1 09/11/06 1040 563988 Americium-241 U 0.00324 +/-0.030 0.0241 +/-0.030 0.0497 pCi/g Bismuth-212 0.591 +/-0.302 0.145 +/-0.302 0.310 pCi/g Bismuth-214 0.681 +/-0.0898 0.0352 +/-0.0898 0.0747 pCi/g Cesium-134 UI 0.00 +/-0.0469 0.0262 +/-0.0469 0.0553 pCi/g Cesium-137 U 0.024 +/-0.0255 0.019 +/-0.0255 0.0406 pCi/g Cobalt-60 U 0.012 +/-0.0241 0.0213 +/-0.0241 0.0466 pCi/g Europium-152 U -0.018 +/-0.0549 0.0452 +/-0.0549 0.095 pCi/g Europium-154 U -0.075 +/-0.072 0.0531 +/-0.072 0.117 pCi/g Europium-155 UI 0.00 +/-0.0819 0.0366 +/-0.0819 0.076 pCi/g Lead-212 0.948 +/-0.062 0.0241 +/-0.062 0.0503 pCi/g Lead-214 0.858 +/-0.0956 0.0298 +/-0.0956 0.0629 pCi/g Manganese-54 U3.090E-05 +/-0.0245 0.0203 +/-0.0245 0.0434 pCi/g Niobium-94 U 0.00428 +/-0.0201 0.0172 +/-0.0201 0.0367 pCi/g Potassium-40 15.7 +/-1.00 0.163 +/-1.00 0.366 pCi/g Radium-226 0.681 +/-0.0898 0.0352 +/-0.0898 0.0747 pCi/g Silver-108m U -0.0104 +/-0.0174 0.0148 +/-0.0174 0.0314 pCi/g Thallium-208 0.322 +/-0.0446 0.018 +/-0.0446 0.0384 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 The following Analytical Methods were performed Method Description 1 EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

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

< Result is less than value reported 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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-014F Proiect: YANK01204 Sample ID: 170544014 Client ID: YANK001 Vol. Recv.:

Parameter. Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

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

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

61

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-015F Project: YANK01204 Sample ID: 170544015 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21 -AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 4.74%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.02 +/-0.199 0.0755 +/-0.199 0.151 pCi/g MJHI 09/11/06 1137 563988 Americium-241 U 0.0553 +/-0.0835 0.0665 +/-0.0835 0.133 pCi/g Bismuth-212 0.531 +/-0.343 0.149 +/-0.343 0.298 pCi/g B3ismuth-214 0.718 +/-0.113 0.0359 +/-0.113 0.0717 pCi/g Cesium-134 U 0.0277 +/-0.034 0.0233 +/-0.034 0.0466 pCi/g Cesium-I 37 U 0.0311 +/-0.0234 0.0214 +/-0.0234 0.0427 pCi/g Cobalt-60 U 0.0157 +/-0.0273 0.024 +/-0.0273 0.048 pCi/g Europium-152 U -0.0301 +/-0.0664 0.0505 +/-0.0664 0.101 pCi/g Europium-154 U 0.023 +/-0.0748 0.0643 +/-0.0748 0.128 pCi/g Europium-155 UI 0.00 +/-0.100 0.055 +/-0.100 0.110 pCi/g Lead-212 0.841 +/-0.0955 0.0303 +/-0.0955 0.0606 pCi/g Lead-214 0.720 +/-0.110 0.0355 +/-0.110 0.071 pCi/g Manganese-54 U 0.00593 +/-0.0257 0.0202 +/-0.0257 0.0405 pCi/g Niobium-94 U 0.00263 +/-0.0211 0.0185 +/-0.0211 0.0369 pCi/g Potassium-40 14.8 +/-1.36 0.173 +/-1.36 0.346 pCi/g Radium-226 0.718 +/-0.113 0.0359 +/-0.113 0.0717 pCi/g Silver-108m U 0.00263 +/-0.0211 0.0182 +/-0.0211 0.0363 pCi/g Thallium-208 0.239 +/-0.0521 0.0206 +/-0.0521 0.0412 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 08/30/06 1546 563875 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

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

< Result is less than value reported 62

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-015F Project: YANK01204 Sample ID: 170544015 Client ID: YANKOO Vol. Recv.:

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

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

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

63

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-016F Project: YANK01204 Sample ID: 170544016 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 3.9%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.951 +/-0.208 0.0667 +/-0.208 0.133 pCi/g MJHI 09/11/06 1137 563988 Americium-241 U 0.0192 +/-0.110 0.0823 +/-0.110 0.165 pCi/g Bismuth-212 0.457 +/-0.343 0.148 +/-0.343 0.295 pCi/g Bismuth-214 0.962 +/-0.128 0.0366 +/-0.128 0.0731 pCi/g Cesium-134 U 0.0371 +/-0.0268 0.0246 +/-0.0268 0.0493 pCi/g Cesium-137 0.0631 +/-0.0344 0.0206 +/-0.0344 0.0411 pCi/g Cobalt-60 U 0.0177 +/-0.0244 0.0221 +/-0.0244 0.0442 pCi/g Europium-152 U 0.017 +/-0.0714 0.0557 +/-0.0714 0.111 pCi/g Europium-154 U -0.0354 +/-0.0687 0.0548 +/-0.0687 0.110 pCi/g Europium-155 U 0.0401 +/-0.0679 0.0614 +/-0.0679 0.123 pCi/g Lead-212 0.808 +/-0.0931 0.0309 +/-0.0931 0.0618 pCi/g Lead-214 1.03 +/-0.137 0.0371 +/-0.137 0.0742 pCi/g Manganese-54 U 0.0157 +/-0.0231 0.0211 +/-0.0231 0.0421 pCi/g Niobium-94 U -0.0132 +/-0.0215 0.0173 +/-0.0215 0.0345 pCi/g Potassium-40 12.4 +/-1.23 0.177 +/-1.23 0.353 pCi/g Radium-226 0.962 +/-0.128 0.0366 +/-0.128 0.0731 pCi/g Silver-108m U 0.0118 +/-0.0207 0.0186 +/-0.0207 0.0371 pCi/g Thallium-208 0.196 +/-0.0541 0.022 +/-0.0541 0.044 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes:

The Qualifiers in this report are defined as follows:

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

< Result is less than value reported 64

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-016F Project: YANK0 1204 Sample ID: 170544016 Client ID: YANK001 Vol. Recv.:

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

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

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

65

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-017F Project: YANKO 1204 Sample ID: 170544017 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 3.54%

Parameter C?ualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch A*

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.872 +/-0.325 0.138 +/-0.325 0.276 pCi/g MJH1 09/11/06 1138 563988 Americium-241 U 0.098 +/-0.0815 0.0655 +/-0.0815 0.131 pCi/g Bismuth-212 0.791 +1-0.500 0.303 +/-0.500 0.606 pCi/g Bismuth-214 7.52 +/-0.808 0.0692 +/-0.808 0.138 pCi/g Cesium-134 U 0.030 +/-0.0491 0.044 +/-0.0491 0.0879 pCi/g Cesium-137 U 0.0292 +/-0.0494 0.039 +/-0.0494 0.078 pCi/g Cobalt-60 U -0.0101 +/-0.050 0.0409 +/-0.050 0.0817 pCi/g Europium-152 U -0.0955 +/-0.173 0.0986 +/-0.173 0.197 pCi/g Europium-154 U 0.0231 +/-0.166 0.121 +/-0.166 0.241 pCi/g Europium-155 U 0.0411 +/-0.150 0,095 +/-0.150 0.190 pCi/g Lead-212 0.855 +/-0.125 0.054 +/-0.125 0.108 pCi/g Lead-214 7.69 +/-0.715 0.0681 +/-0.715 0.136 pCi/g Manganese-54 U -0.0178 +/-0.0532 0.0383 +/-0.0532 0.0766 pCi/g Niobium-94 U 0.0572 +/-0.0425 0.0391 +/-0.0425 0.0782 pCi/g Potassium-40 11.9 +/-1.34 0.390 +/-1.34 0.779 pCi/g Radium-226 7.52 +/-0.808 0.0692 +/-0.808 0.138 pCi/g Silver-108m U -0.0424 +/-0.0392 0.0321 +/-0.0392 0.0642 pCi/g Thallium-208 0.309 +/-0.0831 0.0327 +/-0.0831 0.0654 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-017F Project: YANK01 204 Sample ID: 170544017 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

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

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

67

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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-005F Project: YANKO 1204 Sample ID: 170544018 Client ID: YANK001 Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 4.45%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 X 0.416 +/-0.254 0.00 +/-0.261 0.109 pCi/g BXLI 09/14/06 0931 564247 Curium-242 U 0.034 +/-0.0903 0.0402 +/-0.0904 0.202 pCi/g Curium-243/244 X 0.375 +/-0.253 0.0629 +/-0.259 0.235 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 U 0.0251 +/-0.0665 0.0296 +/-0.0665 0.149 pCi/g BXL1 09/10/06 0859 564258 Plutonium-239/240 U -0.0396 +/-0.0347 0.0661 +/-0.035 0.222 pCi/g 4

Liquid Scint Pu2 1, Solid-ALL FSS Plutonium-241 U 11.0 +/-8.81 6.91 +/-8.87 14.5 pCi/g BXLI 09/13/06 0941 564259 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.862 +/-0.189 0.0691 +/-0.189 0.138 pCi/g MJHI 09/11/06 1524 563988 Americium-241 U 0.0475 +/-0.0916 0.0761 +/-0.0916 0.152 pCi/g Bismuth-212 0.376 +/-0.342 0.149 +/-0.342 0.298 pCi/g Bismuth-214 0.665 +/-0.098 0.0348 +/-0.098 0.0695 pCi/g Cesium-134 UT 0.00 +/-0.0369 0.0244 +/-0.0369 0.0487 pCi/g Cesium-137 U 0.00701 +/-0.0214 0.0188 +/-0.0214 0.0375 pCi/g Cobalt-60 U 0.00123 +/-0.0207 0.0176 +/-0.0207 0.0352 pCi/g Europium-152 U 0.0143 +/-0.0598 0.0511 +/-0.0598 0.102 pCi/g Europium-154 U -0.021 +/-0.077 0.0564 +/-0.077 0.113 pCi/g Europium-155 U 0.0156 +/-0.0608 0.0554 +/-0.0608 0.111 pCi/g Lead-212 0.868 +/-0.0965 0.0285 +/-0.0965 0.0569 pCi/g Lead-214 0.659 +/-0.0993 0.0364 +/-0.0993 0.0727 pCi/g Manganese-54 U 0.014 +/-0.0222 0.018 +/-0.0222 0.036 pCi/g Niobium-94 U -0.00488 +/-0.0191 0.0159 +/-0.0191 0.0318 pCi/g Potassium-40 15.4 +/-1.29 0.167 +/-1.29 0.334 pCi/g Radium-226 0.665 +/-0.098 0.0348 +/-0.098 0.0695 pCi/g Silver-108m U -0.0112 +/-0.0188 0.0159 +/-0.0188 0.0318 pCi/g Thallium-208 0.317 +/-0.0522 0.0177 +/-0.0522 0.0354 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U 0. 0105 +/-0.0185 0.014 +/-0.0185 0.0328 pCi/g KSDI 09/09/06 1605 564153 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid-HTD2,ALL FSS Tritium U 1.53 +/-6.54 5.42 +/-6.54 11.4 pCi/g DFA1 09/05/06 1744 564447 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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-005F Project: YANK01204 Sample ID: 170544018 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%

Rad Liquid Scintillation Analysis Liquid Scint C14, Solid All, FSS Carbon-14 U -0.095 +/-0.0729 0.0628 +/-0.0729 0.128 pCi/g AXD2 09/06/06 0701 564449 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U -7.85 +/-34.0 23.2 +/-34.0 48.2 pCi/g MXPI 09/08/06 2325 564451 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U 3.94 +/-7.34 6.02 +/-7.35 12.5 pCi/g MXPI 09/09/06 0319 564452 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.128 +/-0.272 0.225 +/-0.272 0.463 pCi/g KXR1 09/06/06 1605 564445 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu-I 1-RC Modified 3 DOE EML HASL-300, Pu-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 Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Alphaspec Am241, Cm, Solid ALL 68 (15%-125%)

Plutonium-242 Alphaspec Pu, Solid-ALL FSS 86 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Pu241, Solid-ALL F5 90 (25%-125%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 81 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Fe55, Solid-ALL FS 75 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 66 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 81 (15%-125%)

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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-005F Project: YANK01204 Sample ID: 170544018 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch A Notes:

The Qualifiers in this report are defined as follows

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

• Result is less than value reported

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

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

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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-008F Proiect: YANK01204 Sample ID: 170544019 Client ID: YANK00O Matrix: Soil Vol. Recv.:

Collect Date: 21-AUG-06 Receive Date: 30-AUG-06 Collector: Client Moisture: 4.7%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch IN Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 X 0.421 +/-0.257 0.00 +/-0.263 0.111 pCi/g BXL1 09/14/06 0931 564247 Curium-242 U 0.0454 +/-0.089 0.00 +/-0.0891 0.123 pCi/g Curium-243/244 U 0.134 +/-0.164 0.0637 +/-0.165 0.239 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 U -I 0.00926 +/-0.0182 0.0346 +/-0.0182 0.174 pCi/g BXLI 09/10/06 0859 564258 Plutonium-239/240 U 0.0879 +/-0.135 0.0599 +/-0.135 0.224 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U -2.25 +/-7.22 6.16 +/-7.22 12.9 pCi/g BXLI 09/13/06 0958 564259 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.902 +/-0.268 0.0945 +/-0.268 0.189 pCi/g MJHI 09/11/06 1524 563988 Americium-241 U 0.043 +/-0.0406 0.0334 +/-0.0406 0.0668 pCi/g Bismuth-212 0.625 +/-0.369 0.182 +/-0.369 0.364 pCi/g Bismuth-214 0.610 +/-0.137 0.0427 +/-0.137 0.0853 pCi/g Cesium-134 U 0.0406 +/-0.035 0.0304 +/-0.035 0.0608 pCi/g Cesium-] 37 U 0.00127 +/-0.0295 0.026 +/-0.0295 0.0519 pCi/g Cobalt-60 U -0.00106 +/-0.0351 0.0291 +/-0.0351 0.0582 pCi/g Europium-152 U -0.00421 +/-0.0852 0.0607 +/-0.0852 0.121 pCi/g Europium-154 U 0.0662 +/-0.110 0.0972 +/-0.110 0.194 pCi/g Europium-155 U -0.00259 +/-0.0574 0.0504 +/-0.0574 0.101 pCi/g Lead-212 0.756 +/-0.0918 0.0307 +/-0.0918 0.0615 pCi/g Lead-214 0.723 +/-0.116 0.0417 +/-0.116 0.0834 pCi/g Manganese-54 U 0.0269 +/-0.0305 0.0282 +/-0.0305 0.0564 pCi/g Niobium-94 U -0.00728 +/-0.0274 0.0235 +/-0.0274 0.0469 pCi/g Potassium-40 12.9 +/-1.23 0.237 +/-1.23 0.473 pCi/g Radium-226 0.610 +/-0.137 0.0427 +/-0.137 0.0853 pCi/g Silver-108m U 0.00253 +/-0.0238 0.0207 +/-0.0238 0.0414 pCi/g Thallium-208 0.248 +/-0.0567 0.0244 +/-0.0567 0.0488 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, solid-ALL FSS Strontium-90 U -0.( 0042 +/-0.0116 0.0105 +/-0.0116 0.0248 pCi/g KSDI 09/09/06 1605 564153 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid-HTD2,ALL FSS Tritium U 1.43 +/-6.09 5.05 +/-6.09 10.6 pCi/g DFAI 09/05/06 1815 564447 71

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-008F Project: YANKO 1204 Sample ID: 170544019 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1' Rad Liquid Scintillation Analysis Liquid Scint C14, Solid AII,FSS Carbon-14 U -0.0997 +/-0.0966 0.0841 +/-0.0966 0.174 pCi/g AXD2 09/06/06 0833 564449 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U 34.3 +/-41.0 27.1 +/-41.0 56.4 pCi/g MXPI 09/08/06 2342 564451 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U 9.11 +/-7.52 5.98 +/-7.52 12.5 pCi/g MXPI 09/09/06 0351 564452 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.0655 +/-0.262 0.221 +/-0.262 0.456 pCi/g KXRI 09/06/06 1621 564445 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 08/30/06 1546 563875 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 1-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 Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Alphaspec Am241, Cm, Solid ALL 67 (15%-125%)

Plutonium-242 Alphaspec Pu, Solid-ALL FSS 74 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Pu241, Solid-ALL FS 100 (25%-125%)

Carier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 103 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Fe55, Solid-ALL FS 68 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 71 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 81 (15%-125%)

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: September 15, 2006

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9304-0002-008F Project: YANK0 1204 Sample ID: 170544019 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A Notes:

The Qualifiers in this report are defined as follows

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

< Result is less than value reported

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

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

73

QUALITY CONTROL DATA 74

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Renort Date: September 15, 2006 Client : Connecticut Yankee Atomic Power Page 1 of 9 362 Injun Hollow Rd East Hampton, Connecticut

Contact:

Mr. Jack McCarthy Workorder: 170544 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Alpha Spec Batch 564247 QC1201173420 170543020 DUP Americium-241 x 0.667 X 0.300 pCi/g 76 (0%- 100%) BXLI 09/14/06 09:31 Uncert: +/-0.335 +/-0.218 TPU: +/-0.348 +/-0.221 Curium-242 U 0.082 U 0.0236 pCi/g 111 (0%- 100%)

Uncert: +/-0.131 +/-0.0939 TPU: +/-0.132 +/-0.0939 Curium-243/244 U 0.255 U 0.0428 pCi/g 143 (0% - 100%)

Uncert: +/-0.223 +/-0.120 TPU: +/-0.226 +/-0.121 QC1201173422 LCS Americium-241 13.0 11.7 pCi/g 90 (75%-125%)

Uncert: +/-1.25 TPU: +/-1.92 Curium-242 U 0.0188 pCi/g Uncert: +/-0.075 TPU: +/-0.075 Curium-243/244 15.7 12.5 pCi/g 80 (75%-125%)

Uncert: +/- 1.30 TPU: +/-2.02 QC1201173419 MB Americium-241 U -0.0458 pCi/g Uncert: +/-0.0756 TPU: +/-0.0757 Curium-242 U 0.00 pCi/g Uncert: +/-0.0739 TPU: +/-0.0739 Curium-243/244 U -0.00877 pCi/g Uncert: +/-0.0737 TPU: +/-0.0738 QC1201173421 170543020 MS Americium-241 13.5 x 0.667 12.8 pCi/g 90 (75%-125%)

Uncert: +/-0.335 +/-1.35 TPU: +/-0.348 +/-2.10 Curium-242 U 0.082 U 0.0211 pCi/g Uncert: +/-0.131 +/-0.084 TPU: +/-0.132 +/-0.0841 Curium-243/244 16.3 U 0.255 14.8 pCi/g 91 (75%-125%)

Uncert: +/-0.223 +/-1.45 TPU: +/-0.226 +/-2.36 Batch 564258 QC1201173424 170543020 DUP Plutonium-238 U -0.0353 U -0.00766 pCi/g 129 (0%- 100%) BXLI 09/10/0608:59 75

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 170544 Page 2 of 9 Parnmame NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Alpha Spec Batch 564258 Uncert: +/-0.0346 +/-0.015 TPU: +/-0.0349 +/-0.015 Plutonium-239/240 U -0.025 U -0.0306 pCi/g 20 (0%- 100%)

Uncert: +/-0.0854 +/-0.030 TPU: +/-0.0855 +/-0.0302 QC1201173426 LCS Plutonium-238 U 0.00736 pCi/g (75%- 125%) 09/10/06 08:59 Uncert: +/-0.0558 TPU: +/-0.0558 Plutonium-239/240 12.0 9.86 pCi/g 82 (75%-125%)

Uncert: +/-1.00 TPU: +/-1.39 QC1201173423 MB Plutonium-238 U 0.0173 pCi/g 09/11/06 16:09 Uncert: +/-0.107 TPU: +/-0.107 Plutonium-239/240 U -0.0751 pCi/g Uncert: +/-0.0773 TPU: +/-0.0776 QC1201173425 170543020 MS Plutonium-238 U -0.0353 U -0.0128 pCi/g (75%-125%) 09/10/06 08:59 Uncert: +/-0.0346 +/-0.0662 TPU: +/-0.0349 +/-0.0662 Plutonium-239/240 12.5 U -0.025 11.5 PGi/g 92 (75%-125%)

Uncert: +/-0.0854 +/-1.14 TPU: +/-0.0855 +/-1.62 Batch 564259 QC1201173428 170543020 DUP Plutonium-241 u -4.55 U 4.44 pCi/g 0 (0% - 100%) BXLI 09/13/06 10:30 Uncert: +/-7.51 +/-8.58 TPU: +/-7.51 +/-8.59 QC1201173430 LCS Plutonium-241 137 140 pCi/g 103 (75%-125%) 09/13/06 11:03 Uncert: +/-14.1 TPU: +/-19.7 QC1201173427 MB Plutonium-241 U 1.82 pCi/g 09/13/06 10:14 Uncert: +/-7.33 TPU: +/-7.33 QC1201173429 170543020 MS Plutonium-241 139 U -4.55 127 pCi/g 91 (75%-125%) 09/13/06 10:47 Uncert: +/-7.51 +/-12.9 TPU: +/-7.51 +/-17.6 Rad Gamma Spec Batch 563988 QC1201172835 170543021 DUP Actinium-228 1.07 0.953 pCi/g 11 (0% - 100%) MJH1 09/11/06 15:13 Uncert: +/-0.229 +/-0.197

+/-0.197 76

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 170544 Page 3 of 9 Parmname NOM Sample Qual OC Units RPD% REC % Ran2e AnIst Date Time Rad Gamma Spec Batch 563988 TPU: +/-0.229 Americium-241 u 0.0273 U -0.0503 pCi/g 677 (0%- 100%)

Uncert: +/-0.0421 +/-0.0891 TPU: +/-0.0421 +/-0.0891 Bismuth-212 0.437 0.783 pCi/g 57 (0%- 100%)

Uncert: +/-0.373 +/-0.404 TPU: +/-0.373 +/-0.404 Bismuth-214 0.570 0.699 pCi/g 20 (0% - 100%)

Uncert: +/-0.128 +/-0.103 TPU: +/-0.128 +/-0.103 Cesium- 134 u 0.0383 U 0.0429 pCi/g 12 (0%- 100%)

Uncert: +/-0.0339 +/-0.0346 TPU: +/-0.0339 +/-0.0346 Cesium-137 U -0.011 U -0.00779 pCi/g 34 (0%- 100%)

Uncert: +/-0.0293 +/-0.0221 TPU: +/-0.0293 +/-0.0221 Cobalt-60 u -0.00163 U 0.0113 pCi/g 268 (0%- 100%)

Uncert: +/-0.0332 +/-0.0398 TPU: +/-0.0332 +/-0.0398 Europium- 152 u 0.044 U -0.0504 pCi/g 2980 (0%- 100%)

Uncert: +/-0.0764 +/-0.0579 TPU: +/-0.0764 +/-0.0579 Europium- 154 u -0.00651 U 0.0217 pCi/g 371 (0%- 100%)

Uncert: +1-0.105 +/-0.0705 TPU: +/-0.105 +/-0.0705 Europium-155 U 0.0206 U 0.0875 pCi/g 124 (0%- 100%)

Uncert: +/-0.0595 +/-0.0954 TPU: +/-0.0595 +/-0.0954 Lead-212 0.772 0.903 pCi/g 16 (0%- 20%)

Uncert: +/-0.093 +/-0.0706 TPU: +/-0.093 +/-0.0706 Lead-214 0.680 0.793 pCi/g 16 (0% - 20%)

Uncert: +/-0.109 +/-0.103 TPU: +/-0.109 +/-0.103 Manganese-54 U 0.0306 U 0.00764 pCi/g 120 (0%- 100%)

Uncert: +/-0.0338 +/-0.0225 TPU: +/-0.0338 +/-0.0225 Niobium-94 U -1.500E-05 U 0.00524 pCi/g 201 (0%- 100%)

Uncert: +/-0.0317 +/-0.0208 TPU: +/-0.0317 +/-0.0208 Potassium-40 15.3 15.2 pCi/g 0 (0%- 20%)

Uncert: +/-1.23 +/-0.985 TPU: +/-1.23 +/-0.985 Radium-226 0.570 0.699 pCi/g 20 (0%- 100%)

Uncert: +/-0.128 +/-0.103 TPU: +/-0.128 +/-0.103 Silver-108m U -0.00955 U -0.00886 pCi/g 7 (0%- 100%)

Uncert: +/-0.0232 +/-0.0196 77

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 170544 Page 4 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 563988 TPU: +/-0.0232 +/-0.0196 Thallium-208 0.296 0.365 pCi/g 21 (0%- 100%)

Uncert: +/-0.0555 +/-0.0516 TPU: +/-0.0555 +/-0.0516 QC1201172836 LCS Actinium-228 U 0.434 pCi/g 09/11/06 15:13 Uncert: +/-0.559 TPU: +/-0.559 Americium-241 23.4 25.1 pCi/g 107 (75%-125%)

Uncert: +/-1.99 TPU: +/-1.99 Bismuth-212 U 0.574 pCi/g Uncert: +/-0.992 TPU: +/-0.992 Bismuth-214 U 0.168 pCi/g Uncert: +/-0.258 TPU: +/-0.258 Cesium- 134 U 0.0765 pCi/g Uncert: +1-0.150 TPU: +/-0.150 Cesium- 137 9.58 10.0 pCi/g 105 (75%-125%)

Uncert: +/-0.520 TPU: +/-0.520 Cobalt-60 14.5 15.4 pCi/g 106 (75%-125%)

Uncert: +/-0.671 TPU: +/-0.671 Europium- 152 U 0.317 pCi/g Uncert: +/-0.314 TPU: +/-0.314 Europium- 154 U -0.0025 pCi/g Uncert: +/-0.308 TPU: +/-0.308 Europium- 155 U 0.102 pCi/g Uncert: +/-0.323 TPU: +/-0.323 Lead-212 U 0.0975 pCi/g Uncert: +/-0.163 TPU: +/-0.163 Lead-214 U 0.389 pCi/g Uncert: +/-0.367 TPU: +/-0.367 Manganese-54 U 0.006 pCi/g Uncert: +/-0.141 TPU: +/-0.141 Niobium-94 U -0.0639 pCi/g Uncert: +/-0.126 TPU: +/-0.126 Potassium-40 U 0.0608 pCi/g 78

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 170544 Page 5 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 563988 Uncert: +1-1.18 TPU: +/-1.18 Radium-226 U 0.168 pCi/g (75%-125%)

Uncert: +/-0.258 TPU: +/-0.258 Silver- 108m U 0.0118 pCi/g Uncert: +/-0.107 TPU: +/-0.107 Thallium-208 U 0.0723 pCi/g Uncert: +/-0.123 TPU: +/-0.123 QC 120117 2834 MB Actinium-228 U -0.0134 pCi/g 09/11/06 15:25 Uncert: +/-0.0482 TPU: +/-0.0482 Americium-241 U -0.00197 pCi/g Uncert: +/-0.0344 TPU: +/-0.0344 Bismuth-212 U -0.0714 pCi/g Uncert: +/-0.104 TPU: +/-0.104 Bismuth-214 U 0.00749 pCi/g Uncert: +/-0.0298 TPU: +/-0.0298 Cesium- 134 U -0.00829 pCi/g Uncert: +/-0.012 TPU: +/-0.012 Cesium-137 U 0.00138 pCi/g Uncert: +/-0.012 TPU: +/-0.012 Cobalt-60 U -0.00523 pCi/g Uncert: +/-0.0135 TPU: +/-0.0135 Europium- 152 U 0.012 pCi/g Uncert: +/-0.0345 TPU: +/-0.0345 Europium- 154 U -0.000749 pCi/g Uncert: +/-0.0385 TPU: +/-0.0385 Europium- 155 U -0.00474 pCi/g Uncert: +/-0.0292 TPU: +/-0.0292 Lead-212 U -0.022 pCi/g Uncert: +/-0.0278 TPU: +/-0.0278 Lead-214 U -0.0013 pCi/g Uncert: +/-0.030 TPU: +/-0.030 79

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 170544 Page 6 of 9 Parnmiame NOM Sample Qual QC Units RPD% REC % Range Anlst Date Time Rad Gamma Spec Batch 563988 Manganese-54 U 0.00461 pCi/g Uncert: +/-0.0114 TPU: +/-0.0114 Niobium-94 U -0.000174 pCilg Uncert: +/-0.0116 TPU: +/-0.0116 Potassium-40 U -0.104 pCi/g Uncert: +/-0.181 TPU: +/-0.181 Radium-226 U 0.00749 pCi/g Uncert: +/-0.0298 TPU: +/-0.0298 Silver-108m U -0.00225 pCi/g Uncert: +/-0.0114 TPU: +/-0.0114 Thallium-208 U 0.0218 pCi/g Uncert: +/-0.0268 TPU: +/-0.0268 Rad Gas Flow Batch 564153 QC1201173180 170544018 DUP Strontium-90 U 0.0105 U 0.00952 pCi/g 10 (0% - 100%) KSDI 09/09/06 16:05 Uncert: +/-0.0185 +/-0.0141 TPU: +/-0.0185 +/-0.0141 QC1201173182 LCS Strontium-90 1.56 1.50 pCi/g 97 (75%-125%) 09/09/06 16:05 Uncert: +/-0.0897 TPU: +/-0.0997 QC1201173179 MB Strontium-90 U -0.0136 pCi/g 09/09/06 16:05 Uncert: +/-0.0252 TPU: +/-0.0252 QC1201173181 170544018 MS Strontium-90 3.10 U 0.0105 2.33 pCi/g 75 (75%-125%) 09/09/06 16:05 Uncert: +/-0.0185 +/-0.163 TPU: +/-0.0185 +/-0.177 Rad Liquid Scintillation Batch 564445 QC1201173841 170544018 DUP Technetium-99 U 0.128 U 0.0496 pCi/g 0 (0% - 100%) KXRI 09/06/06 17:59 Uncert: +/-0.272 +/-0.251 TPU: +/-0.272 +/-0.251 QC1201173843 LCS Technetium-99 12.7 13.0 pCi/g 103 (75%-125%) 09/06/06 18:32 Uncert: +/-0.501 TPU: +/-0.582 QC1201173840 MB Technetium-99 U 0.0991 pCi/g 09/06/06 17:43 80

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 170544 Page 7 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Liquid Scintillation Batch 564445 Uncert: +/-0.243 TPU: +/-0.243 QC1201173842 170544018 MS Technetium-99 13.1 U 0.128 13.3 pCi/g 102 (75%-125%) 09/06/06 18:15 Uncert: +/-0.272 +/-0.540 TPU: +/-0.272 +/-0.620 Batch 564447 QC1201173845 170544018 DUP Tritium U 1.53 U 0.760 pCi/g 0 (0%- 100%) DFAI 09/05/06 21:25 Uncert: +/-6.54 +/-5.24 TPU: +/-6.54 +/-5.24 QC1201173847 LCS Tritium 46.9 44.3 pCi/g 95 (75%-125%) 09/07/06 11:21 Uncert: +/-8.94 TPU: +/-8.98 QC1201173844 MB Tritium U -0.43 pCi/g 09/05/06 20:54 Uncert: +/-4.67 TPU: +/-4.67 QC1201173846 170544018 MS Tritium 54.5 U 1.53 57.4 pCi/g 105 (75%-125%) 09/07/06 11:05 Uncert: +/-6.54 +/-10.7 TPU: +/-6.54 +/-10.7 Batch 564449 QC1201173849 170544019 DUP Carbon-14 U -0.0997 U -0.0804 pCi/g 0 (0% - 100%) 'XD2 09/09/06 05:04 Uncert: +/-0.0966 +/-0.108 TPU: +/-0.0966 +/-0.108 QC1201173851 LCS Carbon-14 6.66 6.26 pCi/g 94 (75%-125%) 09/06/06 13:38 Uncert: +/-0.258 TPU: +/-0.276 QC1201173848 MB Carbon-14 U -0.0326 pCi/g 09/06/06 12:02 Uncert: +/-0.102 TPU: +/-0.102 QC1201173850 170544019 MS Carbon- 14 6.86 U -0.0997 6.85 pCi/g 100 (75%-125%) 09/06/06 13:07 Uncert: +/-0.0966 +/-0.273 TPU: +/-0.0966 +/-0.293 Batch 564451 QC1201173859 170543020 DUP Iron-55 U 77.6 U 25.2 pCi/g 0 (0% - 100%) \1XPI 09/09/06 00:15 Uncert: +/-70.0 +/-35.2 TPU: +/-70.2 +/-35.3 QC1201173861 LCS Iron-55 628 652 pCi/g 104 (75%-125%) 09/09/06 00:49 Uncert: +/-52.8 TPU: +/-66.0 81

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 170544 Page 8 of 9 Parmname NOM Sample Qual QC Units RPD % REC% Range Anlst Date Time Rad Liquid Scintillation Batch 564451 QC1201173858 MB Iron-55 U 9.45 pCi/g 09/08/06 23:59 Uncert: +/-38.6 TPU: +/-38.6 QC1201173860 170543020 MS Iron-55 707 U 77.6 734 pCi/g 104 (75%-125%) 09/09106 00:32 Uncert: +/-70.0 +/-58.4 TPU: +/-70.2 +/-74.2 Batch 564452 QC1201173873 170543020 DUP Nickel-63 U 1.42 U 7.28 pCi/g 0 (0% - 100%) "IXPI 09/09/06 04:54 Uncert: +/-6.33 +/-7.57 TPU: +/-6.33 +/-7.57 QC1201173875 LCS Nickel-63 512 468 pCi/g 92 (75%-125%) 09/09/06 05:58 Uncert: +/-15.7 TPU: +/-21.7 QC1201173872 MB Nickel-63 U 10.4 pCi/g 09/09/06 04:23 Uncert: +/-7.87 TPU: +/-7.87 QC1201173874 170543020 MS Nickel-63 594 U 1.42 542 pCi/g 91 (75%-125%) 09/09/06 05:26 Uncert: +/-6.33 +/-20.8 TPU: +/-6.33 +/-27.9 Notes:

The Qualifiers in this report are defined as follows:

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

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

GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 170544 Page 9 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time A

h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike cone. by a factor of 4 or more.

• • Indicates analyte is a surrogate compound.

A The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result.

For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations.

Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary.

83

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD ATTACHMENT 4 (DQA RESULTS)

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD ATTACHMENT 4A (PRELIMINARY DATA REVIEW)

Health Physics Procedure GPP-GGGR-R512 1-001 Attachment B Health Physics Procedure GPP-GGGR-R5 121-001 Attachment B Preliminary Data Review Form - Samples for the Sign Test Survey Unit: 9304- 0002 Survey Unit Name: Southwest Protected Area Grounds Classification:

Survey Media:

Type of Survey: Fn Status Sunrvey Type of Measurement: Gross Measurerent Number of Measurements: *iiiii~15~~ii~ii! !i1ii!!iliii:iiii:

Operational DCGL:

BASIC STATISTICAL QUANTITIES Cs-137 Co-60 Minimum Value: 8.36-03 -,6.90,

-- 63 Maximum Value: - 4.3Ez02' 2.53E-02 Mean: 9.96E-0 3 7.43E-03 Median: 8.31E-03 5.27E-03 Standard Deviation: 1.46E-02 1..08E-02 Skew: 0.905 0.467 __________________

RADIONUCLIDE CONCENTRATION (pCi/g)

NUMBER Cs-137 Co-60 Cs Identified? Co Identified?

Performed By: Date: - t -- 0 G, Independent Review: Date:

Health Physics Procedure GPP-GGGR-R5123-000-Rev.CY-00(

Health Physics Procedure GPP-GGGR-R5 I 23-000-Rev~CY-00(

Preliminary Data Review Form - Judgemental Samples Survey Unit: 9304- 0002 Survey Unit Name:

Southwest Protected Area Grounds Classification: I Survey Media: Soil Type of Survey: Final Status Survey Type of Measurement: Gross Measurement Number of Measurements:

Operational DCGL: w BASIC STATISTICAL QUANTITIES Cs-137 Co-60 Minimum Value: 2.92E 1.6OlE Maximum Value: 1E-02, "1 .77E-02 Mean: 4.62E-02 3.80E-03 Median: 4.62E-02 3.80E-03)

Standard Deviation: 2.40E-02 .1.97E-02 Operational DCGL 4l75E+/-00 2.29E+00[

RADIONUCLIDE CONCENTRATION (pCi/g)

Cs ID'ed? Co-60 Co ID'ed Performed By: , Date: "

Independent Review: Date: h93/4a-~

1//

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD ATTACHMENT 4B (GRAPHICAL REPRESENTATION OF DATA)

Health Physics Procedure GGGR-R5123-Rev.CY-00 I Attachment C Quantile Plot For Cobalt - 60 Survey Unit: 9304-0002 Survey Unit Name: Southwest Protected Area Grounds Mean: 7.431--03 pCi/g 3OOE-02 0.

2.50E-02 2,OOE-02 1.50E-02

, :1' C* 1.00E-02 0-0 5.OOE-03 U

U 0.QOE+0O

-5.OOE-03

.* 2.0

• 40 60 80 0

-1.00E-02 L Percentage Co46 Rank Percentage 6.86E-03 1 3 %

-2.82E-03 2 10%

-276E-03 3 17 %

-2.71 E-03 4 23 %

--tOSE-O 5 30%

-7.4E-05 6 37 %

123E03 7 43 %

527EO3 8 50 %

.81.E-0 9 57 %

120E-02 10 63%

130E-02 11 70%

1.57E-02 12 77%

2.22E-2 13 83%

14 90%

2.53E-02 15 97 %

Prepared By: AoI. ,.,, eP"-1,,

A . Date: /0 0 (,

Reviewed By: 2.*Ea7 Date: ///2*/-) z{

Health Physics Procedure GGGR-R5123-Rev.CY-00 I Attachment C Health Physics Procedure GGGR-R5123-Rev.CY-OOI Attachment C Quantile Plot For Cesium - 137 Survey Unit: 9304-0002 Survey Unit Name: Southwest Protected Area Grounds Mean: 9.96E-03 pCi/g 5.OOE-02 4.OOE-02 3.OOE-02 C

0 2.OOE-02 I-1.OOE-02 A-C 0

U 0.OOE+00 C

0

-1.OOE-02 T*., .20 40 60 80 100

-2.OOE-02 Percentage Rank Percentage 1 3%

2 10%

3 17%

4 23%

5 30%

6 37 %

7 43%

8 50%

9 57%

10 63%

11 70%

12 77 %

13 83%

14 90%

15 97%

Prepared By: Y'ot Date: / C-" (.

Reviewed By: . Date: j/

-3/41 0

Health Physics Procedure GGGR-R5123-Rev.CY-001 Attachment C Frequency Plot For Cesium-137 Survey Unit: 9304-0002 Survey Unit Name: Southwest Protected Area Grounds Mean: 0.013 pCi/g 5

4 0 3 CD 0r 2 146' U.

1 0

-0.010 0.000 0.010 0.020 0.030 0.040 Upper End Value (pCilg)

Upper End Observation Observation %

Value Frequency Frequency

-0.010 2 13%

0.000 4 27%

0.010 4 27%

0.020 3 20%

0.030 1 7%

0.040 1 7%

Total 15 100%

Prepared By: Date: iu -. ' -

I Reviewed By: Reviewed- By:*** , &"ece.rDate:

Health Physics Procedure GGGR-R5123-Rev.CY-001 Attachment C Frequency Plot For Cobalt-60 Survey Unit: 9304-0002 Survey Unit Name: Southwest Protected Area Grounds Mean: 0.008 pCi/g 7

6 5

Cr 4 4,***ý T 3 LL 2 1

0 S&

-0.010 0.000 0.010 0.020 0.030 0.040 Upper End Value (pCilg)

Upper End Observation Observation %

Value Frequency Frequency

-0.010 1 7%

0.000 6 40%

0.010 4 27%

0.020 3 20%

0.030 1 7%

0.040 0 0%

Total 15 100%

2 . --- , K -~

Prepared By: /~&~'4. ~ T'~ 1 -) Date: o - " - (- (

Reviewed By: t FS"4 _2f_ Date: /le/lz

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD ATTACHMENT 4C (SIGN TEST)

Health Physics Procedure GPP-GGGR-R512 1-000 Attachment A, Rev. CY-00 I MAJOR Sign Test Calculation Sheet For Multiple Radionuclisdes Survey Unit Number: 9304-0002 Survey Unit Name: Southwest Protected Area Grounds WP&IR#: 2006-038 Classification: I I TYPE I (a error):0.05 I TYPE I (3 error):0.05 Radionuclides: Cs-137 Co-60 Operational DCGL (pCi/g): 4.75 2.29 Results Cs- 137 Results Co-60 Weighted Sum (W,) DCGL-Result Sign 1.59E-02 8.81E-03 7.19E-03 9.93E-01

-8.36E-03 1.30E-02 3.92E-03 9.96E-0 I

-3.16E-03 -7.74E-05 -6.99E-04 1.00E+00 8.3 1E-03 2.53E-02 1.28E-02 9.87E-01 7.0 1E-03 1.23E-03 2.01E-03 9.98E-0I 9.55E-03 5.27E-03 4.31E-03 9.96E-0 I 1.68E-02 -6.86E-03 5.41 E-04 9.99E-0 I 1.27E-03 -1.06E-03 - 1.96E-04 1.00E+00

-8.14E-03 -2.82E-03 -2.95E-03 1.00E+00

-2.1 8E-03 -2.7 IE-03 -1,64E-03 1.OOE+00 2;79E-03 -2.76E-03 -6.18E-04 1.00E+00 1.07E-02 2.42E-02 1.28E-02 9.87E-01 4.38E-02 2.22E-02 , 1.89E-02 9.8 1E-01 2.40E-02 1.20E-02 1.03 E-02 9.90E401 3.11 E-02 i .57E-02 -1.34E-02 9.87E-0 I Number of Positive Differences (S+): 15 Critical Value: 13 Survey Unit: Meets Acceptance Criterion Performed By:-, ] */ t )" / Date:

Independent Review  : ,, 5.

S4x7e--Zý Date: //2 '

7 1

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD ATTACHMENT 4D (QC SPLIT RESULTS)

Connecticut Yankee Decommissioning Project Health 24265-000-GPR-GGGR-R5124-000 Attachment A Physics Procedure Survey Area SreAra 9304 fSurvey Suvy

Unit Split Sample Assessment Form

~ 0002 2 Survey Suvy Unit Name:

Southwest Proteted Area Grounds Sample Plan or WPIR#: 2006-038 SML #: 9304-0002-OI0FS Sample

Description:

Comparison of split samples collected from sample measurement location #02 and analyzed using gamma spectroscopy by an off-site vendor laboratory. The standard sample was 9304-0002-001F the comparison sample was 9304-0002-001 FS.

STANDARD iCOMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable (Y/N)

Value Error Range Value Error Ratio Cs-137 1.59E-02 .33E-02 1 NONE 24I5-02 15s8E-02 1.54 N/A Co-60 8.81E-03 1.3E-02 I NONE .39E-02 9.80E-03 1.58 N/A K-40 1.09E+01 5.20E-01 21 0.75 1.33 1.14E+01 5.15E-01 1.05 Y Comments/Corrective Actions: Cs- 137 & Co-60 are reported at Table is provided to show acceptance criteria used levels significantly below detection limits, a small variance in to assess split samples.

the reported activity for the samples could result in a low resolution and a corresponding unsatisfactory comparison ratio. Resolution Agreement Range Guidance for sample agreement was developed from USNRC 4 7 0.50 2.00 Inspection Procedure 84750 which does not provide agreement 8 15 0.60 1.66 ranges for resolutions less than 4. Therefore, a statement of 16 50 0.75 1.33 acceptability in such cases is not appropriate.However, K-40 51 200 0.80 1.25 was found to be present at an acceptable level of agreement.

Therefore, no further action is warranted. > 200 0.85 1.18 Performed By: Date: Reviewed By: . D,,

Date WPIR - Work Plan and Inspection Record SML - Sample Measurement Location designation Page I of I

Connecticut Yankee Decommissioning Project Health 24265-000-GPR-GGGR-R5124-000 Attachment A Physics Procedure Split Sample Assessment Form Survey 9304 Survey 0002 Survey Unit Southwest Protected Area Grounds Area#: Unit #: IName:

Sample Plan or WPIR#: 2006-038 SML #: 93040002-O04FS Sample

Description:

Comparison of split samples collected from sample measurement location #10 and analyzed using gamma spectroscopy by an off-site vendor laboratory. The standard sample was 9304-0001-010F, the comparison sample was 9304-0001-01 OFS.

STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable (Y/N)

Value Error Range Value Error Ratio Cs-137 8.3 1E-03 9.80E-03 I NONE- -2.49E-03 1.0O1E-02 -0.30 N/A C100 2.5311-02 1.11 E-02 2 NONE- 1,3313-03 9.4013-03 0.05 N/A K-40 1.I1OEI01I 4.27E-01 26 0.75 - 1.33 1.03E+01 4.07E-01 0.94 Y Comments/Corrective Actions: Cs- 137 & Co-60 are repoqrted at Table is provided to show acceptance criteria used

.levels significantly below detection limits, a 4mall variance in to assess split samples.

?'C the reported activity for the samples could result in a low resolution and a corresiponding unsatisfactory comparison ratio. Resolution Agreement Range Guidance for sample agreement was developed from USNRC. 7 0.50 2.00 Inspection Procedure 84750 which does not provide agregement 8 15 0.60 1.66 ranges for resolutions less than 4. Therefore, a statement of 16 50 0.75 1.33 ascceptability in such cases is not appropriate.However. K-40 51 200 0.80 1.25 was found to be present at an acceptable level of agreement.>200.518 Therefore, no further action is warranted., 0 .511 Performed By: Date: Reviewed By: Date:

WPIR - Work Plan and Inspection Record SML - Sample Measurement Location designation Page I of I

SOUTHWEST PROTECTED AREA GROUNDS SURVEY UNIT 9304-0002 RELEASE RECORD ATTACHMENT 4E (COMPASS DQA WITH POWER CURVE)

DQA Surface Soil Report Assessment Summary Site: CY-03 Planner(s): RWM Survey Unit Name: Southwest Protected Area Grounds Report Number: 1 Survey Unit Samples: 15 Reference Area Samples: 0 Test Performed: Sign Test Result: Not Performed Judgmental Samples: 0 EMC Result: Not Performed Assessment

Conclusion:

Reject Null Hypothesis (Survey Unit PASSES)

Retrospective Power Curve 1

I 0ý9 U

0.8 chill_--___

~ - _

I-.

0.7

-I 0.6 C,

0.5 I-0.4 0.3 I. 0.2 3d 01 C

0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Unity Rule Sum-of:Ratios, includldg background

- Prospectve Power U 1-beta Actual Power

-- LBGR - - Estimated Power DCGL ---- Retrospective Power COMPASS vI.0.0 10111/2006 Page I