ML071730452

Final Status Survey (FSS) Final Report - Phase VII - Chapter 5 of 19 - Appendix A4, Survey Unit Release Record 9312-0003, Southwest 115k V Switchyard (Radiologically Controlled Area)

ML071730452
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	04/15/2007
From:	Wojtkowiak D Connecticut Yankee Atomic Power Co
To:	NRC/FSME
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Download: ML071730452 (132)

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Book of 1 Final Status Survey Final Report Phase VII Appendix A4 Survey Unit Release Record 9312-0002, Spent Fuel Building (SFB)

(Former Radiologically Controlled Area)

May 2007

CYAPCO FINAL STATUS SURVEY RELEASE RECORD SPENT FUEL BUILDING (SFB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0002 Prepared ;: bIA- Date: Am {"1 "FSSngineer Reviewed By: ;g-. <,7f:. r-¶-.ai >'

FSS Fngineer ApprovedBv::** ., Date:

Tee nical Support Manager Revision 0

SPENT FUEL BUILDING (SFB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0002 RELEASE RECORD TABLE OF CONTENTS

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

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

3. DATA QUALITY OBJECTIVES (DQO)......................................... 7

4. SU RV EY D ESIGN ........................................................................... 10

5. SURVEY IMPLEMENTATION ...................................................... 13

6. SU RVEY RESU LTS ........................................................................ 14

7. QUALITY CONTROL .................................................................... 18

8. INVESTIGATIONS AND RESULTS ............................................. 18

9. REMEDIATION AND RESULTS .................................................... 18

10. CHANGES FROM THE FINAL STATUS SURVEY PLAN ...... 18

11. DATA QUALITY ASSESSMENT (DQA) ...................................... 19

12. A NO M A LIE S .................................................................................... 20

13. C O N C LU SIO N .................................................................................. 20

14. A TTA CH MEN TS ............................................................................. 20 14.1 Attachment 1 - Figures (4 pages including cover) 14.2 Attachment 2 - Scan Results (6 pages including cover) 14.3 Attachment 3 - Laboratory Data (88 pages including cover) 14.4 Attachment 4 - DQA Results (13 pages including covers)

TOTAL 131 Revision 0

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SURVEY UNIT 9312-0002 RELEASE RECORD

1. SURVEY UNIT DESCRIPTION Survey Unit 9312-0002 (Spent Fuel Building) is designated as Final Status Survey (FSS) Class 1 and consists of approximately one thousand nine hundred seventy-five (1,975) square meters and is located approximately one thousand five hundred-one feet (1,501 ft) to the southeast of the site benchmark (Northing: 237370.20, Easting:

667394.57) site reference :coordinate system benchmark used at Haddam Neck Plant (HNP) (see Attachment 1). The survey unit is bounded as follows: land Survey Unit 9312-0005 to the north (called north as oriented with the north to south flow of the Connecticut River), land Survey Unit 9312-0001 land Survey Unit 9312-0003 to the west, land Survey Unit 9312-0007 to the south, and land Survey Unit 9312-0009 and land Survey Unit 9312-0010 to the east. As a result of demolition and remediation activities, the area topography is mostly flat and de-vegetated. The survey unit has a moderate slope running from east to west.

The reference coordinates associated with this survey unit are OlI1 through E014 by S068 through S071 (refer to "HNP License Termination Plan" (LTP) Section 5.4.4).

The reference coordinates provide the maximum dimensions of a rectangle containing this survey unit. Some areas contained in this rectangle may not be part of this survey unit. The boundary of the survey unit was defined using a Global Positioning System (GPS) based on the Connecticut State Plane System North American Datum (NAD) 1927.

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

The "ClassificationBasis Summary" conducted for Survey Unit 9312-0002 consisted of:

a) A review of the 10CFR50.75 (g) (1) database, b) A review of the "Initial Characterization Report" and the "Historic Site Assessment Supplement,"

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

A review of the "Initialand Supplemental CharacterizationReports " as well as the previous "Classification Basis Summaries" was performed. The source documents, the "Connecticut Yankee Haddam Neck Characterization Report" and "Initial Classification for Survey Areas at Connecticut Yankee", were incorporated by reference in LTP, Revision 0.

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SURVEY UNIT 9312-0002 RELEASE RECORD During plant operation, Survey Unit 9312-0002 was the location of significant, radiologically contaminated structures and systems, including the Spent Fuel Pool (SFP), the Spent Fuel Building (SFB), the "Bus 10" area and the northeastern quadrant of the 115kV Switchyard.

The Spent Fuel Building (SFB) was a concrete structure designed for the storage of new and spent fuel. It contained radiologically contaminated items and process.

equipment necessary for safe handling and storage of spent nuclear fuel. The Spent Fuel Pool (SFP) itself was a thirty-six (36) ft long by thirty-seven (37) ft wide by thirty-five (35) ft deep pool located in the northern half of the SFB. The pool was filled with borated water and contained the spent fuel assemblies stored in racks.

Highly irradiated reactor components and other debris were stored in the pool as well.

Historical surveys of the building show that significant levels of fixed and loose contamination were present in this structure.

Bus 10 Pad was originally an outdoor staging area designed to function as 'a decontamination facility. It was initially comprised of a concrete pad equipped with a drain system that emptied into the plant radwaste system. The pad was also used as a storage area for containers of radioactive spent primary resins and other contaminated items. In 1975, attempts to radiologically decontaminate the pad were unsuccessful.

Subsequently, a layer a lead shielding was placed on top of the pad and a layer of concrete was poured over the lead. This pad eventually became the foundation for the Waste Compactor Building. In the late 1990s, the building was removed and the concrete pad and surrounding soils were remediated.

The 115 kV Switchyard (#111) was situated outside the RCA just south of the Containment building. This area included two (2) Station Service Transformers

(# 204 & #205) and the 115 kV Tie Breaker (#218). Also, Bus 12 (#120) was located at the SW corner of the yard. There were several other transformers with associated power lines that extended beyond the switchyard area.

A review of the Historical Site Assessment and Supplement, as well as, other historical documents (e.g., the 10CFR50.75(g)(1) files) indicated a significant number of operational events have impacted Survey Unit 9312-0002. Operational events were considered to be spills and leakage from contaminated systems. These events would have had the most impact on the radiological condition of subsurface structures and footers; and the underlying soil and bedrock prior to system and structural decontamination and demolition. Some of the major events are summarized as follows:

" In October of 1976, a routine survey identified contaminated stones near the SFB concrete pad. The stones were removed and properly dispositioned as radioactive waste.

• In June of 1977, a hot particle was discovered during a routine survey of the area adjacent to the 115 kV Switchyard. The contaminant was removed and a resurvey of the entire area as well as some equipment removed from the area indicated no remaining detectable activity.

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SURVEY UNIT 9312-0002 RELEASE RECORD

• In October of 1981, a survey identified loose surface contamination on the rails outside the SFB following a spill from the SFB lower level. The source or system where the spill originated was not identified.

• In February of 1989, there was a release of radioactive liquid from the Spent Fuel Building drainpipe that resulted in distribution of plant related radioactivity to the drain trench located in the 115 kV Switchyard, the storm drain system components and soils at the storm drain outfall. Remediation of the plant related radioactivity associated with this event resulted in decontamination of the drain trench, the storm drain system and removal of a significant volume of soil.

• During an annual survey performed in August of 1995, radioactive particles were found in and around the switchyard area. Some of the particles were embedded in the pavement around the switchyard. Gamma spectrometry of dirt samples collected from the switchyard identified Co-60 and Cs-137. Loose contamination, was discovered under the switchyard fence. The contaminated soil in the switchyard and portions of pavement were remediated.

• In 1995, the track area near the SFB was contaminated during hydrolazing.

Major demolition and remediation activities began in 2002. All radioactive systems and components located inside the SFB were removed and building structural surfaces were decontaminated to ensure contamination levels were acceptable for controlled demolition. Confirmatory radiological surveys were performed throughout the demolition process. The SFP liner was removed and the exposed concrete was decontaminated. The structural concrete of the SFP and the SFB was then demolished to grade. No above grade structures currently reside within Survey Unit 9312-0002.

Outside of the structures, considerable remediation was performed on the soils surrounding the SFP and SFB. The analysis of samples taken of the soils located along the northwest corner of the SFB between the SFB and Containment structure indicated the presence of significant concentrations of Cs-137, Co-60 and Sr-90.

Contamination was also identified in the soils to the south of the SFP as a result of SFB sump and cask wash-down pad leakage. In this area, a significant volume of contaminated soil that exhibited direct exposure rates was removed prior to commencing soil sampling for isotopic analysis. The soils in both of these areas were remediated to bedrock and the excavations were backfilled following the performance of radiological assessments. Soil remediation also occurred at the "Bus 10" area.

Previous investigations had identified elevated levels of Cs-137 and Co-60 in the soils in this area. Remediation was successful in this area prior to excavating to the beginning of the saturated zone or bedrock. As with other excavations, the area was backfilled following the performance of a radiological assessment.

In Survey Area 9312, post-remediation soil samples were taken from the as-left surface soils under two (2) Survey and Sampling Work Plans, SSWP-06-08-000 and SSWP-06-12-001. Thirty-five (35) post remediation surface soil samples were collected from the various locations within Survey Area 9312. All samples were collected and analyzed by gamma spectroscopy by an approved off-site laboratory.

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SURVEY UNIT 9312-0002 RELEASE RECORD Ten (10) of the thirty-five (35) post remediation samples collected were analyzed for the full suite of "Hard-to-Detect" (HTD) radionuclides specified in the LTP, Table 2-12, "Radionuclides Potentially Present at Haddam Neck Plant" and as provided in Table 3. Statistical quantities (mean, median and standard deviation) from the 2006 post-remediation survey conducted under SSWP-06-08-000 and SSWP-06-12-001 are provided in Table 1.

Minimum Value: 1.32E-02 -5.OOE-02 Maximum Value: 1.70E+00 1.43E+00 Mean: 2.38E-01 1.08E-01 Median: 1.65E-01 1.46E-02 Standard Deviation: 3.10E-01 2.76E-01 A review of this sample data shows Cs-137 and Co-60 to be the primary radionuclides of concern, with both isotopes reported at fairly low concentrations.

The sample population as a whole was evaluated to assess the distribution of the detected radionuclides. The radionuclide distribution percentage for each sample in the population was calculated by dividing the concentration of each detected radionuclide by the total activity concentration in the sample, expressing the abundance of the specific nuclide in the sample compared against the total activity.

The mean radionuclide distribution was then calculated by taking the average of the individual sample distribution fractions. The results are provided in Table 2.

Cs-137 0.689 Co-60 0.311 No HTD radionuclides were positively identified in concentrations meeting the accepted criteria for detection (i.e., a result greater than two (2) standard deviations uncertainty). 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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SURVEY UNIT 9312-0002 RELEASE RECORD While Sr-90 was not identified in the soil characterization results, it was decided to include Sr-90 as a radionuclide of concern for this survey unit as Sr-90 was prevalent in the soils prior to remediation. Therefore, all volumetric soil samples taken as part of the survey design for this survey unit were subjected to direct analysis for Sr-90.

The FSS Engineer performed a visual inspection and walk-down during March 2007 to assess the physical condition of the survey unit, evaluate access points, travel paths and identify potentially hazardous conditions.

This survey area is affected by 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 identification of radioactive material above the Derived Concentration Guideline Levels (DCGLs), and the need for radiological remediation, it was concluded that there was some probability for residual radioactivity in concentrations greater than the DCGLs, justifying a final survey unit classification of Class 1 (refer to Section 3).

3. DATA QUALITY OBJECTIVES (DQO)

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

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

The primary objective of the FSS plan was to demonstrate that the level of residual radioactivity in Survey Unit 9312-0002 did not exceed the release criteria specified in the LTP and that the potential dose from residual radioactivity is As Low As Reasonably Achievable (ALARA).

A fundamental precursor to survey design is to establish a relationship between the release criteria and some measurable quantity. This is done through the development of DCGLs. The DCGLs represent average levels of radioactivity above background levels and are presented in terms of surface or mass activity concentrations.

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SURVEY UNIT 9312-0002 RELEASE RECORD Chapter 6 of the LTP describes in detail the modeling used to develop the DCGLs for soil (called Base Case Soil DCGL), existing groundwater radioactivity and future groundwater radioactivity that will be contributed by building basements and footings.

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

Equation 1 shows the mathematical relationship between the three (3) components and the total dose.

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

This survey area is affected by existing groundwater (reference CY memo ISC 06-024). Therefore, the dose contribution from existing groundwater is bounded by two (2) mrem/yr TEDE.

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

Equation 2 19 mrem/yrTotal = 15 mrem/yrsoil + 2 mrem/yrExisting Gw+ 2 mrem/yrrutureGW 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 (DCGLop), and has been established for the radionuclides of concern as provided in Table 3.

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SURVEY UNIT 9312-0002 RELEASE RECORD 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 3.8 1E+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 Am-241 ) 2.58E+01 1.55E+01 1.03E+00 Pu-241 8.70E+02 5.22E+02 3.48E+01 Cm-243/244 2.90E+01 1.74E+01 1.16E+00 (1) Bold indicates those radionucldies considered Hard to Detect (HTD)

(2) The Base Case Soil DCGL(s) are specified by the LTP in Chapter 6 and are equivalent to twenty-five (25) mrem/yr TEDE (3) The Operational DCGL is equivalent to achieving fifteen (15) mrem/yr TEDE (4) The required MDC is equivalent to achieving one (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 Revision 0 9

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SURVEY UNIT 9312-0002 RELEASE RECORD Another important facet of the DQO process is to identify the radionuclides of concern and determine the concentration variability. Soil samples were collected in 2006 to establish the radiological condition of Survey Unit 9312-0002 for FSS.

Cs-137 and Co-60 were the two (2) gamma emitting radionuclides reported in concentrations with the potential for exceeding the release criteria. Sr-90 was included as a radionuclide of concern due to it's prevalence in the soil prior to remediation. The characterization data were used for the survey design and are provided in Table 1.

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

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

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

The DQO process determined that Cs-137, Co-60 and Sr-90 would be the radionuclides of concern in Survey Unit 9312-0002 (refer to Section 3). The characterization survey did not include any other additional HTD radionuclides of concern for this survey unit. As Sr-90 concentrations were determined by direct analysis, surrogate DCGLs were not required as part of the survey design for this survey unit via screening under LTP Section 5.4.7.2, "Gross Activity DCGLs". Other radionuclides that were positively identified in concentrations greater than the screening criteria during the performance of this FSS would be evaluated to ensure adequate survey design.

As the survey unit is classified as a Class 1 surface soils area, and discrete, elevated areas of contamination was possible, the application of the Elevated Measurement Comparison (EMC) remained an option.

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.

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SURVEY UNIT 9312-0002 RELEASE RECORD 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 0.73 to achieve a relative shift (A/G) in the range of 1 and 3.

The resulting adjusted relative shift was 2.0. A Prospective Power Curve was generated using COMPASS, a software package developed under the sponsorship of the United States Nuclear Regulatory Commission (USNRC) for implementation of the MARSSIM in support of the decommissioning license termination rule (10CFR20, Subpart E). The result of the COMPASS computer run showed adequate power for the survey design. The survey design specified fifteen (15) surface soil samples for non-parametric statistical testing. Based upon a review of the historical information and Characterization Survey data, three (3) judgmental samples were taken in this survey area. One (1) judgmental location was taken at the north quadrant of the survey unit in the vicinity of former Excavation 5, one (1) judgmental sample was taken in the southeast corner of the survey unit in the vicinity of the Bus 10 excavation and one (1) judgmental sample was taken in the southwest corner of the survey unit in the vicinity of former Excavation 3.

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.

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 4.

9312-0002-OOIF 236713.18 668770.07 9312-0002-002F 236713.18 668808.84 9312-0002-003F 236679.60 668750.68 9312-0002-004F 236679.60 668789.46 9312-0002-005F 236679.60 668828.23 9312-0002-006F 236646.02 668808.84 Revision 0 I1I

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SURVEY UNIT 9312-0002 RELEASE RECORD 9312-0002-007F 236646.02 668847.62 9312-0002-008F 236646.02 668886.39 9312-0002-009F 236612.44 668867.00 9312-0002-OIOF 236612.44 668905.78 9312-0002-01IF 236578.87 668847.62 9312-0002-012F 236578.87 668886.39 9312-0002-013F 236545.29 668828.23 9312-0002-014F 236545.29 668867.00 9312-0002-015F 236511.71 668847.62 9312-0002-016B(') 236673.42 668842.07 9312-0002-017B(') 236565.32 668890.38 9312-0002-018B(') 236544.43 668809.84 (1) B = biased - indicates judgmental sample location Procedure RPM 5.1-11 specifies that 5% of the samples are required to be selected for HTD analysis. Three (3) soil samples, or 20% 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, "RadionuclidesPotentiallyPresentat Haddam Neck Plant" and as provided in Table 3.

The LTP requires a minimum of 5% of the samples taken for non-parametric statistical testing be selected for QC evaluation. 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 one (1) soil sample for "split sample" analysis by the off-site laboratory. This location was selected randomly using the Microsoft Excel "RANDBETWEEN" function.

The LTP specifies a required scanning coverage of 100% for outdoor Class 1 areas.

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 5 provides a synopsis of the survey design.

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SURVEY UNIT 9312-0002 RELEASE RECORD 2

Survey Unit Land Area 1,975 m Based on AutoCAD-LT Type 1 and Type 2 errors were 18 0.05, sigma was 0.14 pCilg, the Number of Measurements (15 systematic grid)' LBGR was set at 0.73 to achieve a (3 judgmental) Relative Shift in the range of 1 and 3

Grid Spacing 11.89 m Based on triangular grid Operational DCGL 4.75 pCi/g Cs-137 Administratively set to achieve 2.29 pCi/g Co-60 fifteen (15) mrem/yr TEDE (1) 4.75 pCi/g Cs-137 The Operational DCGL meets the Soil Investigation Level 4.75 pCi/g Cs-607 LTP criteria for a Class 1 survey l2.29 pCi/g Co-60 unit Scan Survey Area Approximately The LTP requires 100% area Coverage 100% of the area coverage for Class 1 survey units An instrument response greater than the Scan Scan Investigation Level MDC-DCGLEMC of Per BCY-HP-0239 Revision #0 2,000 cpm plus ambient background (1) The allowable dose for soil in this survey unit is fifteen (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 a Final Status Survey Plan (FSSP). The FSSP package included a detailed survey plan, job safety analysis, job planning checklist and related procedures for reference. Daily briefings were conducted to discuss the expectations for job performance and the safety aspects of the survey. The "Daily Survey Journal" was used to document field activities and other information pertaining to the FSS.

A single scan area was established that constituted approximately 100% of the surface area of Survey Unit 9312-0002. Grid lines, one (1) meter wide, were painted on the ground of the scan area. A background survey was performed around the survey unit and it was determined that, using an Eberline E-600 with a SPA-3 sodium iodide detector, background ranged from 8,390 counts per minute (cpm) up to 13,500 cpm.

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SURVEY UNIT 9312-0002 RELEASE RECORD The scan area was established and scanned for elevated readings (see Attachment 2 for all scan results). Scanning was performed with an Eberline E-600 using a SPA-3 sodium iodide detector. The E-600 was operated in the rate-meter mode and used with audio response. The probe was positioned as close to the ground as possible and was moved at a scan speed of about 0.5 meters per second. Approximately 100% of the survey unit was scanned.

Measurement locations were identified in North American Datum (NAD) 1927 coordinates using GPS coordinates; sample locations were identified and marked with a surveyor's flag or paint for identification. At each sample location, a one (1) meter radius circle was established around the sample flag or paint mark was scanned for elevated radiation levels.

Eighteen (18) 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."

Three (3) samples (9312-0002-003F, 9312-0002-004F and 9312-0002-015F) were randomly selected for HTD radionuclide analysis.

The implementation of survey specific quality control measures included the collection of one (1) sample (9312-0002-005F) for "split sample" analysis.

6. SURVEY RESULTS All field survey activities were conducted between March 23, 2007 and March 24, 2007.

The sample locations identified in the FSS plan were scanned over approximately a one (1) meter radius for elevated radiation levels. Table 6 provides an overview of the scan results for sample measurement locations. Scan results are provided in Attachment 2.

1 13.70 15.50 NO 2 14.00 15.50 NO 3 10.30 12.20 NO 4 11.20 13.50 NO Revision 0 14

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SURVEY UNIT 9312-0002 RELEASE RECORD 5 8;.62 10.87 NO 6 10.90 11.62 NO 7 11.50 12.40 NO 8 8.59 11.05 NO 9 10.50 11.30 NO 10 11.00 12.20 NO 11 10.20 11.46 NO 12 12.00 13.80 NO 13 11.50 13.50 NO 14 10.90 11.45 NO 15 12.40 13.10 NO 16(2) 9.28 11.02 NO 17(2) 10.30 10.99 NO 18(2) 10.30 11.10 NO (1) The action level is based on a measurement in accordance with the FSS plan (scan MDC-DCGLEMc) of 2,000 cpm plus ambient background)

(2) Indicates judgmental sample locations (biased)

The scan area, that comprised approximately 100% of the total surface area for the survey unit, was scanned for elevated radiation levels. The area was scanned in accordance with the FSS plan on March 24, 2007.

Seventy (70) scan strips were initially established in this survey unit. There were no elevated measurements identified during scanning. Table 7 provides an overview of the scan area survey. Scan results are provided in Attachment 2.

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SURVEY UNIT 9312-0002 RELEASE RECORD 1 thru 10 13.20 14.70 None None I Ithru 20 13.20 14.70 None None 21 thru 30 10.00 13.00 None None 31 thru 40 10.40 12.20 None None 41 thru 50 13.10 14.40 None None 51 thru 60 11.90 13.20 None None 61 thru 70 11.60 12.60 None None (1) The action level is based on a measurement in accordance with the FSS plan (scan MDC-DCGLEMc) of 2,000 cpm plus ambient background)

The off-site laboratory employed for the radiological analyses of samples was General Engineering Laboratories, LLC. The laboratory analyzed the fifteen (15) samples collected for non-parametric statistical testing, the associated field splits and the three (3) judgmental samples using gamma spectroscopy. Gamma spectroscopy analysis was performed to the required MDCs. Gamma spectroscopy results identified some radionuclides meeting the accepted criteria for detection (i.e., a result greater than two (2) standard deviations uncertainty). However, Cs-137 was the only gamma-emitting radionuclide reported in any appreciable concentration.

Cs-137 was positively identified in two (2) of the fifteen (15) samples collected for non-parametric statistical testing. Co-60 was not positively identified in any sample from the statistical sample population. The mean of the gamma spectroscopic analysis results for the sample population indicated that Cs-137 was present at levels at or below expected environmental levels for Cs- 137 within the vicinity of the HNP as presented in the Health Physics TSD BCY-HP-0063. A summary of the fifteen (15) samples collected for non-parametric statistical testing results as well as the fraction of the DCGLOp is provided in Table 8.

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SURVEY UNIT 9312-0002 RELEASE RECORD 9312-0002-001F -8.73E-03 9312-0002-002F 2.45E-02 0.005 9312-0002-003F -1.34E-02 9312-0002-004F 7.86E-03 9312-0002-005F 1.34E-03 9312-0002-006F 1.96E-03 9312-0002-007F 1.47E-02 9312-0002-008F 3.60E-02 0.008 9312-0002-009F -7.70E-03 9312-0002-01OF 1.80E-02 9312-0002-01 IF -7.23E-04 9312-0002-012F 3.80E-03 9312-0002-013F -6.35E-03 9312-0002-014F 1.86E-02 9312-0002-015F 1.48E-02 (1) "-" indicate that the radionuclide was not positively detected in the sample (2) The Operational DCGL from Table 3 is 4.75 pCi/g for Cs-137 to achieve fifteen (15) mrem/yr TEDE In addition to Cs-137 and Co-60, Sr-90 was also identified during the DQO process as a radionuclide of concern. Subsequently, all samples were subjected to analysis by gas proportional counting for Sr-90. All analyses met the required minimum MDC.

Sr-90 was not positively identified (i.e., a result greater than two (2) standard deviations uncertainty) in any of the fifteen (15) samples collected for non-parametric statistical testing. In addition to Sr-90, the off-site laboratory also processed, as required by the sample plan, three (3) samples for the full suite of HTD radionuclides as specified in LTP, Table 2-12, "RadionuclidesPotentiallyPresentat Haddam Neck Plant" and as provided in Table 3. The requested analyses included alpha spectroscopy, gas proportional counting, and liquid scintillation depending on the radionuclide and the measurement method. All analyses performed met the required minimum MDC. No other HTD radionuclides were positively identified.

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SURVEY UNIT 9312-0002 RELEASE RECORD In addition to the non-parametric statistical sample population, three (3) judgmental surface soil samples were taken at biased locations. These locations were selected by the FSS Engineer based upon a review of the historical site assessment for this area and previous survey results. These judgmental soil samples were analyzed for Cs-137, Co-60 and Sr-90 in accordance with the DQOs used during the survey design.

No radionuclides of concern were positively identified in any of these samples.

7. QUALITY CONTROL The off-site laboratory processed the split samples and performed gamma spectroscopy analysis. One sample location was selected for analysis, which exceeds the 5% minimum required by the LTP. The data were evaluated using USNRC acceptance criteria specified in Inspection Procedure 84750 as detailed in HNP Procedure RPM 5.1-24, "Split Sample Assessment for FinalStatus Survey ".

Cs-137 was not detected in sufficient quantity in the field split results at location 9312-0002-005FS to evaluate in accordance with procedure. Evaluation using the reported results for naturally occurring K-40 resulted in acceptable agreement between the field-split results at this location.

The sample analysis vendor, General Engineering Laboratories, LLC, maintains quality control and quality assurance plans as part of normal operation. Refer to Attachments 3 and 4 for data and data quality analysis results

8. INVESTIGATIONS AND RESULTS There were no investigations performed for this survey

9. REMEDIATION AND RESULTS Radiological remedial action as described by MARSSIM Section 5.4 was performed in this survey unit prior to FSS. All excavations were characterized and backfilled prior to performing FSS. In the area where remediation occurred, the ground area is comprised of barren dirt with no vegetation, and the soils have been graded relatively flat to the corresponding elevation of the adjacent survey units. The results for Cs-137 following remediation were well below the Operational DCGL provided in Table 3. Health Physics TSD BCY-HP-0078, "ALARA Evaluation of Soil Remediation in Support of Final Status Survey, " determined that remediation beyond that required to meet the release criteria is unnecessary and that the remaining residual radioactivity in soil was ALARA.

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

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11. DATA QUALITY ASSESSMENT (DQA)

The DQO sample design and data were reviewed in accordance with Procedure RPM 5.1-23, "DataQuality 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 mean and median values are well below the Operational DCGL. Also, the retrospective power curve shows that a sufficient number of samples were collected to achieve the desired power. Therefore, the survey unit meets the unrestricted release criteria with adequate power as required by the DQOs. The basic statistical quantities for the statistical sample population are provided below in Table 9.

DCGLop: 4.75E+00 2.29E+00 9.30E-01 Minimum Value: -1.34E-02 - 1.44E-02 -2.74E-02 Maximum Value: 3.60E-02 2.14E-02 1.49E-02 Mean: 6.98E-03 5.47E-03 -2.30E-03 Median: 3.80E-03 5.63E-03 -4.15E-04 Standard Deviation: 1.39E-02 1.1OE-02 1.21E-02 Cs-137 was positively detected in only two (2) of the samples collected for non-parametric statistical testing. This minimizes the usefulness of a statistical analysis of the data set. The range of the data is approximately four (4) standard deviations indicates a calculated skew of 0.46. The Cs-137 results are represented graphically through posting plots, a frequency plot, and a quantile plot.

Co-60 and Sr-90, although included in the FSS plan for compliance purposes, was not positively identified in any of the fifteen (15) samples collected for non-parametric statistical testing. Assessment of the basic statistical quantities and graphical representation of Co-60 and Sr-90 was not considered useful given the non-existent number of actual data points to represent the distribution.

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

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12. ANOMALIES No anomalies were noted.

13. CONCLUSION Survey Unit 9312-0002 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 was not required.

All positively identified radionuclides of concern were used for statistical testing to determine the adequacy of the survey unit for FSS.

The sample data passed the Sign Test. The null hypothesis was rejected. The Retrospective Power Curve generated using COMPASS shows adequate power was achieved. The survey unit is properly designated as Class 1.

The dose contribution from soil is 0.06 mrem/yr TEDE based on the average concentration of the samples used for non-parametric statistical sampling.

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

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

The average total dose from residual radioactivity in this survey unit, including exposures from the three (3) components as described in Section 3, that is, residual radioactivity in soil, existing groundwater radioactivity, and future groundwater radioactivity from the burial of concrete foundations or footings from site buildings containing residual radioactivity will not exceed 4.06 mremlyr TEDE. Therefore, Survey Unit 9312-0002 is acceptable for unrestricted release.

14. ATTACHMENTS 14.1 Attachment 1 - Figures 14.2 Attachment 2 - Scan Results 14.3 Attachment 3 - Laboratory Results 14.4 Attachment 4 - DQA Results Revision 0 20

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SURVEY UNIT 9312-0002 RELEASE RECORD ATTACHMENT 1 (FIGURES)

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SURVEY UNIT 9312-0002 RELEASE RECORD ATTACHMENT 2 (SCAN RESULTS)

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Survey Unit 9312-0002 Scan Survey Results Sample Location Scans Alarm >Alarm Survey Location Log Date Log Time Reading E-600 SIN Probe SIN Level Level 9312-02-BL-00-01-0 3/23/2007 7:42:00 1.35E+04 1111 1004 9312-02-S L-00-01-0 3/23/2007 7:43:00 1.37E+04 1.55E+04 1111 1004 9312-02-BL-00-02-0 3/23/2007 7:44:00 1.35E+04 1111 1004 9312-02-S L-00-02-0 3/23/2007 7:45:00 1.40E+04 1.55E+04 1111 1004 9312-02-BL-00-03-0 3/23/2007 7:47:00 1.02E+04 1111 1004 9312-02-S L-00-03-0 3/23/2007 7:49:00 1.03E+04 1.22E+04 1111 1004 9312-02-BL-00-04-0 3/23/2007 7:50:00 1.15E+04 1111 1004 9312-02-SL-00-04-0 3/23/2007 7:52:00 1.12E+04 1.35E+04 1111.: 1004 9312-02-BL-00-05-0 3/23/2007 7:53:00 8.87E+03 1111 1004 9312-02-SL-00-05-0 3/23/2007 7:55:00 8.62E+03 1.09E+04 1111 1004 9312-02-BL-00-06-0 3/23/2007 7:56:00 9.62E+03 1111 1004 9312-02-SL-00-06-0 3/23/2007 7:57:00 1.09E+04 1.16E+04 1111 1004 9312-02-BL-00-07-0 3/23/2007 7:58:00 1.04E+04 1111 1004 9312-02-SL-00-07-0 3/23/2007 8:00:00 1.15E+04 1.24E+04 1111 1004 9312-02-BL-00-08-0 3/23/2007 8:01:00 9.05E+03 1111 1004 9312-02-SL-00-08-0 3/23/2007 8:02:00 8.59E+03 1.11E+04 1111 1004 9312-02-BL-00-09-0 3/23/2007 8:04:00 9.30E+03 1111 1004 9312-02-SL-00-09-0 3/23/2007 8:06:00 1.05E+04 1.13E+04 1111 1004 9312-02-BL-00-1 0-0 3/23/2007 8:08:00 1.02E+04 1111 1004 9312-02-SL-00-1 0-0 3/23/2007 8:09:00 1.10E+04 1.22E+04 1111 1004 9312-02-BL-00-11-0 3/23/2007 8:11:00 9.46E+03 1111 1004 9312-02-SL-00-11-0 3/23/2007 8:12:00 1.02E+04 1.15E+04 1111 1004 9312-02-BL-00-1 2-0 3/23/2007 8:13:00 1.18E+04 1111 1004 9312-02-SL-00-12-0 3/23/2007 8:14:00 1.20E+04 1.38E+04 1111 1004 9312-02-BL-00-1 3-0 3/23/2007 8:16:00 1.15E+04 1111 1004 9312-02-SL-00-1 3-0 3/23/2007 8:18:00 1.15E+04 1.35E+04 1111 1004 9312-02-BL-00-14-0 3/23/2007 8:19:00 9.45E+03 1111 1004 9312-02-SL-00-14-0 3/23/2007 8:21:00 1.09E+04 1.15E+04 1111 1004 9312-02-BL-00-1 5-0 3/23/2007 8:25:00 1.11E+04 1111 1004 9312-02-SL-00-1 5-0 3/23/2007 8:26:00 1.24E+04 1.31 E+04 1111 1004 9312-02-BL-00-1 6-0 3/23/2007 8:31:00 9.02E+03 1111 1004 9312-02-SL-00-16-0 3/23/2007 8:33:00 9.28E+03 1.10E+04 1111 1004 9312-02-BL-00-1 7-0 3/23/2007 8:36:00 8.99E+03 1111 1004 9312-02-SL-00-1 7-0 3/23/2007 8:36:00 1.03E+04 1.10E+04 1111 1004 9312-02-BL-00-1 8-0 3/23/2007 8:38:00 9.1OE+03 1111 1004 9312-02-SL-00-1 8-0 3/23/2007 8:39:00 1.03E+04 1.11E+04 1111 1004 4/23/2007 1 of 1

Survey Unit 9312-0002 Scan Survey Results Scan Strip Scans Survey Location Log Date Log Time Reading Alarm >Alarm E-600 S/N Probe SIN Level Level 9312-02-BC-00-01-0 3/23/2007 10:45:00 9.64E+03 1111 1004 9312-02-SC-00-01-0 3/23/2007 10:47:00 9.72E+03 1.16E+04 1111 1004 9312-02-BC-00-02-0 3/23/2007 10:48:00 9.69E+03 1111 1004 9312-02-SC-00-02-0 3/23/2007 10:50:00 9.66E+03 1.17E+04 1111 1004 9312-02-BC-00-03-0 3/23/2007 10:51:00 8.91 E+03 1111 1004 9312-02-SC-00-03-0 3/23/2007 10:54:00 1.02E+04 1.09E+04 1111 1004 9312-02-BC-00-04-0 3/23/2007 10:54:00 1.02E+04 1111 1004 9312-02-SC-00-04-0 3/23/2007 10:55:00 1.14E+04 1.22E+04 1111 1004 9312-02-BC-00-05-0 3/23/2007 10:56:00 1.13E+04 1111 1004 9312-02-SC-00-05-0 3/23/2007 10:58:00 1.19E+04 1.33E+04 1111 1004 9312-02-BC-00-06-0 3/23/2007 10:58:00 9.68E+03 1111 1004 9312-02-SC-00-06-0 3/23/2007 11:00:00 1.05E+04 1.17E+04 1111 1004 9312-02-BC-00-07-0 3/23/2007 11:01:00 1.27E+04 1111 1004 9312-02-SC-00-07-0 3/23/2007 11:07:00 1.12E+04 1.47E+04 1111 1004 9312-02-BC-00-08-0 3/23/2007 11:13:00 1.25E+04 1111 1004 9312-02-SC-00-08-0 3/23/2007 11:15:00 1.32E+04 1.45E+04 1111 1004 9312-02-BC-00-09-0 3/23/2007 11:16:00 1.19E+04 1111 1004 9312-02-SC-00-09-0 3/23/2007 11:17:00 1.29E+04 1.39E+04 1111 1004 9312-02-BC-00-1 0-0 3/23/2007 11:19:00 1.17E+04 1111 1004 9312-02-SC-00-10-0 3/23/2007 11:20:00 1.22E+04 1.37E+04 1111 1004 9312-02-BC-00-11-0 3/23/2007 11:21:00 1.27E+04 1111 1004 9312-02-SC-00-11-0 3/23/2007 11:23:00 1.17E+04 1.47E+04 1111 1004 9312-02-BC-00-12-0 3/23/2007 11:24:00 1.17E+04 1111 1004 9312-02-SC-00-12-0 3/23/2007 11:25:00 1.32E+04 1.37E+04 1111 1004 9312-02-BC-00-1 3-0 3/23/2007 11:26:00 1.18E+04 1111 1004 9312-02-SC-00-13-0 3/23/2007 11:29:00 1.04E+04 1.38E+04 1111 1004 9312-02-BC-00-14-0 3/23/2007 11:29:00 1.13E+04 1111 1004 9312-02-SC-00-14-0 3/23/2007 11:31:00 1.20E+04 1.33E+04 1111 1004 9312-02-BC-00-1 5-0 3/23/2007 11:32:00 1.1 5E+04 1111 1004 9312-02-SC-00-1 5-0 3/23/2007 11:34:00 1.06E+04 1.35E+04 1111 1004 9312-02-BC-00-16-0 3/23/2007 11:36:00 1.06E+04 1111 1004 9312-02-SC-00-16-0 3/23/2007 11:37:00 1.23E+04 1.26E+04 1111 1004 9312-02-BC-00-1 7-0 3/23/2007 13:00:00 1.27E+04 1111 1004 9312-02-SC-00-1 7-0 3/23/2007 13:05:00 1.06E+04 1.47E+04 1111 1004 9312-02-BC-00-18-0 3/23/2007 13:09:00 1.OOE+04 1111 1004 9312-02-SC-00-1 8-0 3/23/2007 13:10:00 1.08E+04 1.20E+04 1111 1004 9312-02-BC-00-19-0 3/23/2007 13:11:00 1.01E+04 1111 1004 9312-02-SC-00-19-0 3/23/2007 13:13:00 1.07E+04 1.21E+04 1111 1004 9312-02-BC-00-20-0 3/23/2007 13:13:00 1.02E+04 1111 1004 9312-02-SC-00-20-0 3/23/2007 13:16:00 9.54E+03 1.22E+04 1111 1004 9312-02-BC-00-21-0 3/23/2007 13:17:00 8.77E+03 1111 1004 9312-02-SC-00-21 -0 3/23/2007 13:18:00 9.66E+03 1.08E+04 1111 1004 4/23/2007 1 of 4

Survey Unit 9312-0002 Scan Survey Results Scan Strip Scans Alarm >Alarm Survey Location Log Date Log Time Reading E-600 SIN Probe SIN Level Level 3/23/2007 13:26:00 1.10E+04 1111 1004 9312-02-BC-00-22-0 9312-02-SC-00-22-0 3/23/2007 13:28:00 1.OOE+04 1.30E+04 1111 1004 3/23/2007 13:29:00 8.69E+03 1111 1004 9312-02-BC-00-23-0 3/23/2007 13:31:00 8.65E+03 1.07E+04 1111 1004 9312-02-SC-00-23-0 3/23/2007 13:32:00 1.02E+04 1111 1004 9312-02-BC-00-24-0 9312-02-SC-00-24-0 3/23/2007 13:33:00 9.81 E+03 1.22E+04 1111 1004 9312-02-BC-00-25-0 3/23/2007 13:34:00 8.39E+03 1111 1004 9312-02-SC-00-25-0 3/23/2007 13:36:00 8.30E+03 1.04E+04 1111 1004 9312-02-BC-00-26-0 3/23/2007 13:36:00 9.98E+03 1111 1004 3/23/2007 13:38:00 9.49E+03 1.20E+04 1111 1004 9312-02-SC-00-26-0 3/23/2007 13:40:00 9.11E+03 1111 1004 9312-02-BC-00-27-0 9312-02-SC-00-27-0 3/23/2007 13:41:00 9.30E+03 1.11E+04 1111 1004 3/23/2007 13:42:00 9.55E+03 1111 1004 9312-02-BC-00-28-0 9312-02-SC-00-28-0 3/23/2007 13:44:00 9.94E+03 1.16E+04 1111 1004 9312-02-BC-00-29-0 3/23/2007 13:44:00 9.40E+03 1111 1004 3/23/2007 13:46:00 9.29E+03 1.14E+04 1111 1004 9312-02-SC-00-29-0 9312-02-BC-00-30-0 3/23/2007 13:46:00 9.21 E+03 1111 1004 9312-02-SC-00-30-0 3/23/2007 13:47:00 9.11E+03 1.12E+04 1111 1004 9312-02-BC-00-31-0 3/23/2007 13:48:00 9.16E+03 1111 1004 9312-02-SC-00-31-0 3/23/2007 13:50:00 9.70E+03 1.12E+04 1111 1004 9312-02-BC-00-32-0 3/23/2007 13:51:00 9.27E+03 1111 1004 9312-02-SC-00-32-0 3/23/2007 13:52:00 9.92E+03 1.13E+04 1111 1004 9312-02-BC-00-33-0 3/23/2007 13:53:00 9.12E+03 1111 1004 9312-02-SC-00-33-0 3/23/2007 13:54:00 9.46E+03 1.11E+04 1111 1004 9312-02-BC-00-34-0 3/23/2007 13:55:00 9.45E+03 1111 1004 9312-02-SC-00-34-0 3/23/2007 13:57:00 9.03E+03 1.15E+04 1111 1004 9312-02-BC-00-35-0 3/23/2007 13:58:00 9.41 E+03 1111 1004 9312-02-SC-00-35-0 3/23/2007 14:00:00 1.04E+04 1.14E+04 1111 1004 9312-02-BC-00-36-0 3/23/2007 14:01:00 1.02E+04 1111 1004 9312-02-SC-00-36-0 3/23/2007 14:03:00 9.71 E+03 1.22E+04 1111 1004 9312-02-BC-00-37-0 3/23/2007 14:03:00 9.36E+03 1111 1004 9312-02-SC-00-37-0 3/23/2007 14:05:00 9.57E+03 1.14E+04 1111 1004 9312-02-BC-00-38-0 3/23/2007 14:06:00 9.94E+03 1111 1004 9312-02-SC-00-38-0 3/23/2007 14:08:00 9.17E+03 1.19E+04 1111 1004 9312-02-BC-00-39-0 3/23/2007 14:08:00 8.90E+03 1111 1004 9312-02-SC-00-39-0 3/23/2007 14:10:00 9.48E+03 1.09E+04 1111 1004 9312-02-BC-00-40-0 3/23/2007 14:10:00 9.35E+03 1111 1004 9312-02-SC-00-40-0 3/23/2007 14:12:00 9.55E+03 1.14E+04 1111 1004 9312-02-BC-00-41-0 3/23/2007 14:13:00 9.12E+03 1111 1004 9312-02-SC-00-41-0 3/23/2007 14:15:00 1.02E+04 1.11E+04 1111 1004 9312-02-BC-00-42-0 3/23/2007 14:15:00 9.42E+03 1111 1004 9312-02-SC-00-42-0 3/23/2007 14:17:00 9.16E+03 1.14E+04 1111 1004 4/23/2007 2 of 4

Survey Unit 9312-0002 Scan Survey Results Scan Strip Scans Alarm >Alarm Survey Location Log Date Log Time Reading E-600 SIN Probe SIN Level Level 9312-02-BC-00-43-0 3/24/2007 7:49:00 1.11E+04 1111 1004 9312-02-SC-00-43-0 3/24/2007 8:09:00 1.05E+04 1.31 E+04 1111 1004 9312-02-BC-00-44-0 3/24/2007 8:10:00 1.07E+04 1111 1004 9312-02-SC-00-44-0 3/24/2007 8:14:00 1.06E+04 1.27E+04 1111 1004 9312-02-BC-00-45-0 3/24/2007 8:15:00 1 .16E+04 1111 1004 9312-02-SC-00-45-0 3/24/2007 8:17:00 1.18E+04 1.36E+04 1111 1004 9312-02-B C-00-46-0 3/24/2007 8:18:00 1.13E+04 1111 1004 9312-02-SC-00-46-0 3/24/2007 8:20:00 1.25E+04 1.33E+04 1111: 1004 9312-02-B C-00-47-0 3/24/2007 8:21:00 1.19E+04 1111 1004 9312-02-SC-00-47-0 3/24/2007 8:25:00 1.18E+04 1.39E+04 1111 1004 9312-02-BC-00-48-0 3/24/2007 8:26:00 1.20E+04 1111 1004 9312-02-SC-00-48-0 3/24/2007 8:28:00 1.23E+04 1.40E+04 1111 1004 9312-02-BC-00-49-0 3/24/2007 8:30:00 1.24E+04 1111 1004 9312-02-SC-00-49-0 3/24/2007 8:33:00 1.31 E+04 1.44E+04 1111 1004 9312-02-BC-00-50-0 3/24/2007 9:55:00 1.18E+04 1111 1004 9312-02-SC-00-50-0 3/24/2007 9:59:00 1.20E+04 1.38E+04 1111 1004 9312-02-BC-00-51 -0 3/24/2007 10:00:00 1.12E+04 1111 1004 9312-02-SC-00-51-0 3/24/2007 10:01:00 1.19E+04 1.32E+04 1111 1004 9312-02-BC-00-52-0 3/24/2007 10:04:00 8.65E+03 1111 1004 9312-02-SC-00-52-0 3/24/2007 10:08:00 9.53E+03 1.07E+04 1111 1004 9312-02-BC-00-53-0 3/24/2007 10:08:00 9.83E+03 1111 1004 9312-02-SC-00-53-0 3/24/2007 10:11:00 9.88E+03 1.18E+04 1111 1004 9312-02-BC-00-54-0 3/24/2007 10:11:00 9.74E+03 1111 1004 9312-02-SC-00-54-0 3/24/2007 10:14:00 1.13E+04 1.17E+04 1111 1004 9312-02-BC-00-55-0 3/24/2007 10:16:00 9.91 E+03 1111 1004 9312-02-SC-00-55-0 3/24/2007 10:19:00 1.02E+04 1.19E+04 1111 1004 9312-02-BC-00-56-0 3/24/2007 10:19:00 9.74E+03 1111 1004 9312-02-SC-00-56-0 3/24/2007 10:22:00 1.02E+04 1.17E+04 1111 1004 9312-02-BC-00-57-0 3/24/2007 10:23:00 1.04E+04 1111 1004 9312-02-SC-00-57-0 3/24/2007 10:25:00 1.07E+04 1.24E+04 1111 1004 9312-02-BC-00-58-0 3/24/2007 10:26:00 1.02E+04 1111 1004 9312-02-SC-00-58-0 3/24/2007 10:31:00 1.OOE+04 1.22E+04 1111 1004 9312-02-BC-00-59-0 3/24/2007 10:33:00 1.02E+04 1111 1004 9312-02-SC-00-59-0 3/24/2007 10:35:00 1.09E+04 1.22E+04 1111 1004 9312-02-BC-00-60-0 3/24/2007 10:36:00 9.94E+03 1111 1004 9312-02-SC-00-60-0 3/24/2007 10:39:00 1.16E+04 1.19E+04 1111 1004 9312-02-BC-00-61-0 3/24/2007 10:40:00 1.06E+04 1111 1004 9312-02-SC-00-61-0 3/24/2007 10:43:00 1.02E+04 1.26E+04 1111 1004 9312-02-BC-00-62-0 3/24/2007 10:44:00 1.04E+04 1111 1004 9312-02-SC-00-62-0 3/24/2007 10:47:00 1.16E+04 1.24E+04 1111 1004 9312-02-BC-00-63-0 3/24/2007 10:48:00 1.03E+04 1111 1004 9312-02-SC-00-63-0 3/24/2007 10:50:00 1.OOE+04 1.23E+04 1111 1004 4/23/2007 3 of 4

Survey Unit 9312-0002 Scan Survey Results Scan Strip Scans Alarm >Alarm Survey Location Log Date Log Time Reading E-600 SIN Probe SIN Level Level 9312-02-BC-00-64-0 3/24/2007 10:53:00 9.18E+03 1111 1004 9312-02-SC-00-64-0 3/24/2007 10:55:00 9.37E+03 1.12E+04 1111 1004 9312-02-BC-00-65-0 3/24/2007 10:56:00 9.25E+03 1111 1004 9312-02-SC-00-65-0 3/24/2007 10:58:00 9.67E+03 1.13E+04 1111 1004 9312-02-BC-00-66-0 3/24/2007 10:59:00 1.02E+04 1111 1004 9312-02-SC-00-66-0 3/24/2007 11:01:00 1.04E+04 1.22E+04 1111 1004 9312-02-BC-00-67-0 3/24/2007 11:08:00 1.OOE+04 1111 1004 9312-02-SC-00-67-0 3/24/2007 11:10:00 1.01E+04 1.20E+04 1111 1004 9312-02-BC-00-68-0 3/24/2007 11:10:00 1.01 E+04 1111 1004 9312-02-SC-00-68-0 3/24/2007 11:14:00 1.01 E+04 1.21 E+04 1111 1004 9312-02-BC-00-69-0 3/24/2007 11:15:00 1.05E+04 1111 1004 9312-02-SC-00-69-0 3/24/2007 11:17:00 9.75E+03 1.25E+04 1111 1004 9312-02-BC-00-70-0 3/24/2007 11:18:00 9.73E+03 1111 1004 9312-02-SC-00-70-0 3/24/2007 11:20:00 1.13E+04 1.17E+04 1111 1004 4/23/2007 4 of 4

SPENT FUEL BUILDING (SFB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0002 RELEASE RECORD ATTACHMENT 3 (LABORATORY DATA)

Revision 0

General Narrative I

General Narrative for Connecticut Yankee Atomic Power Co.

Work Order: 183090 SDG: MSR#07-00120 March 29, 2007 Laboratory Identification:

GEL Laboratories LLC 2040 Savage Road Charleston, South Carolina 29407 (843) 556-8171 Summary Sample receipt The samples arrived at GEL Laboratories LLC, Charleston, South Carolina on March 27, 2007 for analysis.

Shipping container temperatures were checked, documented, and within specifications. The samples were delivered with proper chain of custody documentation and signatures. All sample containers-arrived without any visible signs of tampering or breakage.

Sample Identification The laboratory received the following samples:

Laboratory Sample Identification Description 183090001 9312-0002-OO1F 183090002 9312-0002-002F 183090003 9312-0002-003F 183090004 9312-0002-004F 183090005 9312-0002-005F 183090006 9312-0002-005FS 183090007 9312-0002-006F 183090008 9312-0002-007F 183090009 9312-0002-008F 183090010 9312-0002-009F 183090011 9312-0002-01OF 183090012 9312-0002-01 IF 183090013 9312-0002-012F 183090014 9312-0002-013F 183090015 9312-0002-014F 183090016 9312-0002-015F 183090017 9312-0002-016B 183090018 9312-0002-017B 183090019 9312-0002-018B Items of Note There are no items to note.

GEL Laboratories LLC PO Box 30712 Charleston, SC 29417 2040 Savage Road Charleston, SC 29407 P 843.556.8171 F843.766.1178 www.gel.com 2

Case Narrative Sample analyses were conducted using methodology as outlined in GEL Laboratories, LLC (GEL) Standard Operating Procedures. Any technical or administrative problems during analysis, data review, and reduction are contained in the analytical case narratives in the enclosed data package.

Analytical Request Sixteen soil samples were analyzed for FSSGAM and Strontium-90. Three soil sample were analyzed for the FSSALL suite.

Data Package The enclosed data package contains the following sections: General Narrative, Chain of Custody and Supporting Documentation, Data Review Qualifier Definitions, and data from thefollowing fractions: Radiochemistry.

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

Project Manager GEL Laboratories LLc P0 Box 30712 Charleston, SC 29417 2040 Savage Road Charleston, SC 29407 P 843.556.8171 F 843.766.1178 www.gol.com 3

List of current GEL Certifications as of 29 March 2007 State Certification Alaska UST-062 Arizona AZ0668 Arkansas 88-0651 CLIA 42D0904046 California 01 151CA Colorado GenEngLabs Connecticut PH-01 69 Dept. of Navy NFESC 413 EPA WG-15J Florida/NELAP E87156 Georgia E87156 (FL/NELAP)

Hawaii N/A Idaho N/A Illinois 200029 Indiana C-SC-01 Kansas E-10332 Kentucky 90129 Louisiana 03046 Maryland 270 Massachusetts M-SCO12 Michigan 9903 Nevada SC12 New Jersey SCO02 New Mexico FL NELAP E87156 New York 11501 North Carolina 233 North Carolina Drinking W 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania 68-00485 South Carolina 10120001/10585001/10120002 Tennessee 02934 Texas TX213-2006A Texas NELAP T 104704235-06-TX U.S. Dept. of Agriculture S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont VT87156 Virginia 00151 Washington C1641 4

Chain of Custody and Supporting Documentation S

Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2007-00086 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: Comments:

Jack .McCarthy 860-267-3924 Media Sample Container Code Type Size-Analytical Lab (Name, City, State): Code &Type General Engineering Laboratories Code 2040 Savage Road Charleston, SC 29407 ATT: Cheryl Jones (843-556-8171)

Priority: [] 30 D. 0 15 D. Z 7 D.

Other: .... _ __ _,,__ __ ___ __ __

Sample Designation Date Time Comment, Preservation Lab SampleID.

9312-0002-00.IF 3/23/07 0736 TS G BP X 9312-0002-002F 3/23/07 .0745 TS G BP X 9312-0002-003F 3/23/07 0749 TS G BP X 9312-0002-004F 3/23/07 0752 TS G BP X 9312-0002-005F 3/23/07 0756 TS G BP X 9312-0002-005FS 3/23/07 0756 TS G BP X 9312-0002-006F 3/23/07 0759 TS G BP X 9312-0002-007F 3/23/07 0801 TS G BP X 9312-0002-008F 3/23/07 0803 TS G BP X "

9312-0002-009F 3/23/07 0806 TS G BP X 9312-0002-OIOF 3/23/07 0809 TS G BP X NOTES: PO #: 002332 MSR #:07-00120 Z LTP QA [ Radwaste QA D Non QA Samples Shipped Via: Internal Container Z Fed Ex Temp.: _C3Deg. C El UPS

,_---]F Hand Custody Sealed?

7Date/Time 2);R*eived "

• Date/Time Custody Seal Intact?

3) Relinquished By Date/Time 4) jceived By -Dattime ____IofLading Yk NQ Bill of LadingR#B

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

Connecticut Yankee Atomic Power Company Chain of Custody Form 362 Injun Hollow Road, East Hampton, CT 06424 No. 2007-00087 860-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: Comments:

Jack McCarthy 860-267-3924 Media Sample Container Code Type Size-Analytical Lab (Name, City, State): Code &Type General Engineering Laboratories Code 2040 Savage Road Charleston, SC 29407 ATT: Cheryl Jones (843-556-8171)

V~)

Priority:LE] 30 D.E] 15 D. Z 7 D.

Other: _____C;0 Sample Designation Date Time ,V C Comment, Preservation Lab Sample ID 9312-0002-01IF 3/23/07 0812 TS G BP X 9312-0002-012F 3/23/07 0815 TS G BP X 9312-0002-013F 3/23/07 0817 TS G BP X 9312-0002-014F 3/23/07 0822 TS G BP X 9312-0002-015F 3/23/07 0826 TS G BP X 9312-0002-016B 3/23/07 0833 TS G BP X 9312-0002-017B 3/23/07 0837 TS G BP X 9312-0002-018B 3/23/07 0840 TS G BP X NOTES: PO #: 002332 MSR #: 07-00120 Z LTP QA ED Radwaste QA D-1 Non QA Samples Shipped Via: Internal Container Z Fed Ex. Temp.: (3 Deg. C

[1 Hand Custody Sealed?

1) Rel d Date/Time 2) Re i* dBy / Date/Time Custody Seal Intact?

rW 3 '1 - Other

3) Relinquilhed'By Date/Time 4) Raeived`By Dae/TTime. Y NE X

Bill of Lading. #

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

Connecticut Yankee CylSC-SOW-00l Statement of Work for Analytical Lab Services Figure 1. -SampleCheqk-in List ".

2. 1 3, - .. - -

DatetTime Received:

sDG#:- "l#Og -OZO~-O2 Work Order Number:_

Shipping Cdntainer ID: (_2LcA" 2, Chain of Custody  :-.See Cc -o+7.

1. CustodySeablonshipping container intact?. -Yes "'No (J

2. CuWodYSeals dated and signed? Y Y,. No I1

3. Chain-of-Custody reord present? Yes , No [ ]

4. Cooler temperature C," +e(. .r,.

5. Vermiculite/packing materials is: Wet [ J Dry j4 .

6,* Number of samples in shipping container: 3 "

7. Sample holding times exceeded? Yes [ No P '

.. Samples have:'

~.X..tae ..-- hazard labels

.4in.. gosody sealtio a c~Ž kpoingsmlelbl k.

broken _.ý have air bubbles W-. Were any anomalies identified in sample receive? Yes JN I... Description of anomalies (include sample numbers):

Sample Custodi.'aaoratory ...

Telephoned to: ,oft A

SAMPLE RECEIPT & REVIEW FORM PM use only Client: dJk tJ4-" SDG/ARCOC/Work Order: t Z3 0 Date Received: $ 1/- o PM(A) Review (f, Ig msmare resolved prior to signing):

Received By: 3? & ' 4 h4o~? 0 _/____,__."__ ... .,...._

'6/

Sample Receipt Criteria  : z Comments/Qualifiers (Required for Non-Conforming Items)

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

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

Record preservation method.

Chain of custody documents included with shipment? 1 41 Sample containers intact and Circle Applicable: seals broken damaged container leaking container other (describe) sealed?

Samples requiring chemical Sample ID's. containers affected and observed pH:

5preservation at proper pH?____________________________

6 VOA vials free of headspace Sample 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 Id's and tests affected:

8 time?

1 9 Sample ID's on COC match ID's Sample ID's and containers affected:

on bottles?

10 Date & time on COC match date Sample iD's affected:

& time on bottles? 1 Number of containers received Sample ID's affected:

match number indicated on COC?

COC form is properly signed in 12 relinquished/received sections? 1 Air Bill ,Tracking #s, &

14 Additional Comments "4, 4o *~ RSO RAD Receipt #

S*If > x2 area background is observed on samples identified as "non-Suspected Hazard Information U" -w regulated/non-radioactive", contact the Radiation Safety group for further I Z investigation.

A Radiological Classification? Maximum Counts Observed*: 671-1 BPCB Regulated?

Shipped as DO rHazardous C Material? If yes, contact Waste H Hazard Class Shipped:

Manager or ESH Manager. UN#:

Regulated as a Foreign Soil? 1 PM (or PMA) review of Hazard classifficiation: V' Initials Date: 31l.--- E E Ai

• ,oýlo SAMPLE RECEIPT & REVIEW FORM

., ,.-CONTINUATION FORM -

w0 Client: YA(I .L Date Received: o/t o2- Page ( of /

-7 *o-7 C 11 s- . i3 °l 2 0oo - Qoo.. '--

2oo7- 0 oo087 10

Subject:

COC 07-0086,0087,0088 & 0098 From: "Rick E. Gault" <Gault@CYAPCO.com>

Date: Mon, 26 Mar 2007 11:33:13 -0400 To: "Cheryl Jones" <cj@gel.com>

Cheryl; We're sending 30 samples (under MSR 07-00120 - 19 samples & MSR 07-00125 - 11 samples) to GEL today. All of the samples have a 7 day TAT request. It is acceptable for GEL to use the traced/untraced Tc-99 process for these quick TAT requests. See attached COC for requested analyses.

Rick Gault CYAPCO 860-267-3903 Content-Description: 9312_0009.pdf 9312_0009.pdf Content-Type: application/octet-streamr Content-Encoding: base64 Content-Description: 9312_0002.pdf 9312_0002.pdf. Content-Type: application/octet-stream Content-Encoding: base64 11

Data Review Qualifier Definitions 12

Data Review Qualifier Definitions Qualifier Explanation

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

• • Analyte is a surrogate compound

< Result is less than value reported

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

GEL Laboratories LLC POBox30712 Char1eston, SC29417 2040 Savage Road Charleston, SC 29407 P843.556.8171 F843.765.1178 www.g8l.com 13

RADIOLOGICAL ANALYSIS 14

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

Work Order 183090 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: 620373 Prep Batch Number: 620343 Dry Soil Prep GL-RAD-A-021 Batch Number: 620342 Sample ID Client ID 183090003 9312-0002-003F 183090004 9312-0002-004F 183090016 9312-0002-015F 1201303571 Method Blank (MB) 1201303572 183090003(9312-0002-003F) Sample Duplicate (DUP) 1201303573 183090003(9312-0002-003F) Matrix Spike (MS) 1201303574 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-01 I REV# 15.

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.

I5

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: 183090003 (9312-0002-003F).

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

Technical Information:

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

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

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

Miscellaneous Information:

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

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 19

Product: Alphaspec Pu, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu-Il -RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 620374 Prep Batch Number: 620343 Dry Soil Prep GL-RAD-A-021 Batch Number: 620342 Sample ID Client ID 183090003 9312-0002-003F 183090004 9312-0002-004F 183090016 9312-0002-015F 1201303575 Method Blank (MB) 1201303576 183090003(9312-0002-003F) Sample Duplicate (DUP) 1201303577 183090003(9312-0002-003F) Matrix Spike (MS) 1201303578 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-01 I REV# 15.

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: 183090003 (9312-0002-003F).

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

17

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 1201303577 (9312-0002-003F) was recounted due to poor resolution.

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: 620376 Prep Batch Number: 620343 Dry Soil Prep GL-RAD-A-021 Batch Number: 620342 18

Sample ID Client ID 183090003 9312-0002-003F 183090004 9312-0002-004F 183090016 9312-0002-015F 1201303579 Method Blank (MB) 1201303580 183090003(9312-0002-003F) Sample Duplicate (DUP) 1201303581 183090003(9312-0002-003F) Matrix Spike (MS) 1201303582 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-035 REV# 9.

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: 183090003 (9312-0002-003F).

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

Technical Information:

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

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

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

Miscellaneous Information:

NCR Documentation 19

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: 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: 620458 Prep Batch Number: 620342 20

Sample ID Client ID 183090001 9312-0002-001 F 183090002 9312-0002-002F 183090003 9312-0002-003F 183090004 9312-0002-004F 183090005 9312-0002-005F 183090006 9312-0002-005FS 183090007 9312-0002-006F 183090008 9312-0002-007F 183090009 9312-0002-008F 183090010 9312-0002-009F 183090011 9312-0002-01OF 183090012 9312-0002-01 IF 183090013 9312-0002-012F 183090014 9312-0002-013F 183090015 9312-0002-014F 183090016 9312-0002-015F 183090017 9312-0002-016B 183090018 9312-0002-017B 183090019 9312-0002-018B 1201303803 Method Blank (MB) 1201303804 183090001(9312-0002-001F) Sample Duplicate (DUP) 1201303805 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-013 REV# 13.

Calibration Information:

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

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

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

Quality Control (QC) Information:

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

Designated QC The following sample was used for QC: 183090001 (9312-0002-001 F).

QC Information 21

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, 1201303804 (9312-0002-001F) and 183090001 (9312-0002-001F), did not meet the relative percent difference requirement for Ac-228; however, they do meet the relative error ratio requirement with a value of 1.63452.

Qualifier information Qualifier Reason Analyte Sample U' Data rejected due to interference. Cesium- 134 183090017 Europium-155 183090002 Manganese-54 183090014 UI Data rejected due to low abundance. Americium-241 183090016 Cesium- 134 183090001 183090002 183090003 183090006 183090014 183090018 183090019 Europium-154 183090012 22

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: 620441 Prep Batch Number: 620343 Dry Soil Prep GL-RAD-A-021 Batch Number: 620342 Sample ID Client ID 183090001 9312-0002-001 F 183090002 9312-0002-002F 183090003 9312-0002-003F 183090004 9312-0002-004F 183090005 9312-0002-005F 183090006 9312-0002-005FS 183090007 9312-0002-006F 183090008 9312-0002-007F 183090009 9312-0002-008F 183090010 9312-0002-009F 183090011 9312-0002-OIOF 183090012 9312-0002-01 IF 183090013 9312-0002-012F 183090014 9312-0002-013F 183090015 9312-0002-014F 183090016 9312-0002-015F 183090017 9312-0002-016B 183090018 9312-0002-017B 183090019 9312-0002-018B 1201303761 Method Blank (MB) 1201303762 183090005(9312-0002-005F) Sample Duplicate (DUP) 1201303763 183090005(9312-0002-005F) Matrix Spike (MS) 1201303764 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-004 REV# 11.

23

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: 183090005 (9312-0002-005F).

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 Sample 183090010 (9312-0002-009F) was recounted due to a missing count. Samples 183090003 (9312-0002-003F), 183090009 (9312-0002-008F) and 183090013 (9312-0002-012F) were recounted due to a suspected false positive. Sample 183090014 (9312-0002-013F) was recounted due to high MDA.

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

Miscellaneous Information:

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

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

24

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: 620337 Sample ID Client ID 183090003 9312-0002-003F 183090004 9312-0002-004F 183090016 9312-0002-015F 1201303484 Method Blank (MB) 1201303485 183090003(9312-0002-003F) Sample Duplicate (DUP) 1201303486 183090003(9312-0002-003F) Matrix Spike (MS) 1201303487 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-005 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 (0C) Information:

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

Designated QC The following sample was used for QC: 183090003 (9312-0002-003F).

QC Information Refer to Non-Conformance Report.

Technical Information:

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

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

Sample Re-prep/Re-analysis Samples were 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. The following NCR was generated for this SDG:

NCR 418801 was generated due to Other. 1. Samples 183090003, 183090004, 183090016, 1201303484, and 1201303485 have results greater than the three sigma TPU. Samples were recounted and verify the results. 1. 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 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: 620450 Prep Batch Number: 620343 Dry Soil Prep GL-RAD-A-021 Batch Number: 620342 26

Sample ID Client ID 183090003 9312-0002-003F 183090004 9312-0002-004F 183090016 9312-0002-015F 1201303783 Method Blank (MB) 1201303784 183090003(9312-0002-003F) Sample Duplicate (DUP) 1201303785 183090003(9312-0002-003F) Matrix Spike (MS) 1201303786 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-040 REV# 4.

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: 183090003 (9312-0002-003F).

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

Technical Information:

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

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

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

Miscellaneous Information:

NCR Documentation 27

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: 620451 Prep Batch Number: 620343 Dry Soil Prep GL-RAD-A-021 Batch Number: 620342 Sample ID Client ID 183090003 9312-0002-003F 183090004 9312-0002-004F 183090016 9312-0002-015F 1201303787 Method Blank (MB) 1201303788 183090003(9312-0002-003F) Sample Duplicate (DUP) 1201303789 183090003(9312-0002-003F) Matrix Spike (MS) 1201303790 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL 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).

2.8

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: 183090003 (9312-0002-003F).

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

Technical Information:

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

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

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

Miscellaneous Information:

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

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: LSC, Tritium Dist, Solid - 3 pCi/g Analytical Method: EPA 906.0 Modified Analytical Batch Number: 620336 29

Sample ID Client ID 183090003 9312-0002-003F 183090004 9312-0002-004F 183090016 9312-0002-015F 1201303477 Method Blank (MB) 1201303478 183090003(9312-0002-003F) Sample Duplicate (DUP) 1201303479 183090003(9312-0002-003F) Matrix Spike (MS) 1201303480 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as: Standard Operating Procedure (SOP). The data discussed in this:narrative has been analyzed in accordance with GL-RAD-A-002 REV# 14.

Calibration Information:.

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

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

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

Quality Control (QC) Information:

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

Designated QC The following sample was used for QC: 183090003 (9312-0002-003F).

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

Technical Information:

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

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

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

Miscellaneous Information:

NCR Documentation 30

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

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint C14, Solid AII,FSS Analytical Method: EPA EERF C-01 Modified Analytical Batch Number: 620340 Sample ID Client ID 183090003 9312-0002-003F 183090004 9312-0002-004F 183090016 9312-0002-015F 1201303489 Method Blank (MB) 1201303490 183090003(9312-0002-003F) Sample Duplicate (DUP) 1201303491 183090003(9312-0002-003F) Matrix Spike (MS) 1201303492 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-003 REV# 9.

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.

31

Quality Control (0C) Information:

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

Designated QC The following sample was used for QC: 183090003 (9312-0002-003F).

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

Technical Information:

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

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

Sample Re-prep/Re-analysis Sample 183090004 (9312-0002-004F) was recounted due to the quench number being outside the calibration range.

Miscellaneous Information:

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

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

Qualifier information Manual qualifiers were not required.

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

Review Validation:

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

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

32

ti31073 ReviewerfDate:

33

GEL Laboratories LLC NCR Report No.: 418801 Form GEL-NCR Revision No.: 2 Rev. 06/05 COMPANY - WIDE NONCONFORMANCE REPORT Mo.Day Yr. Division: Quality Criteria: Type:

03-APR-07 Radiochemistry SOP Process Instrument Type: Test / Method: Matrix Type: Client Code:

LSC DOE EML HASL-300, Tc-02-RC Solid YANK

-Modified Batch ID: Sample Numbers:

620337 See below Potentially affected work order(s)(SDG): 183090(MSR#07-0O0120)

Application Issues:

Other Specification and Requirements NRG Disposition:

Nonconformance

Description:

1. Samples 183090003, 183090004, 183090016, 1201303484, and 1. Reporting results.

1201303485 have results greater than the three sigma TPU. Samples were recounted and verify the results.

Originator's Name: Data Validator/Group Leader:

Melanie Aycock 003-APR-07 Heather Anderson 03-APR-07 Quality Review:

Director:

Page 1 34

SAMPLE DATA

SUMMARY

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report for YANK001 Connecticut Yankee Atomic Power Co.

Client SDG: MSR#07-00120 GEL Work Order: 183090 The Qualifiers in this report are defined ag follows:

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

• • Analyte is a surrogate compound U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification ND The analyte concentration is not detected above the detection limit.

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

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

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

Reviewed by 36

GEL 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: April 3, 2007

Contact:

Mr. Jack:McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-OO1F Project: YANK01204 Sample ID: 183090001 Client ID: YANKOO Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: .365%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Di Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.52 +/-0.220 0.0472 +/-0.220 0.0943 pCi/g MJHI 03/28/07 1934 620458 Americium-241 U 0.126 +/-0.0954 0.0806 +/-0.0954 0.161 pCi/g Bismuth-212 0.849 +/-0.229 0.0968 +/-0.229 0.194 pCi/g Bismuth-214 1.13 +/-0.124 0.0248 +/-0.124 0.0495 pCi/g Cesium-134 Ul 0.00 +/-0.0294 0.0183 +/-0.0294 0.0365 pCi/g Cesium-137 U -0.00873 +/-0.0193 0.0138 +/-0.0193 0.0276 pCi/g Cobalt-60 U 0.00631 +/-0.0196 0.0144 +/-0.0196 0.0289 pCi/g Europium-152 U -0.0526 +/-0.0486 0.0362 +/-0.0486 0.0724 pCi/g Europium-154 U -0.0429 +/-0.0562 0.0454 +/-0.0562 0.0908 pCi/g Europium-155 U 0.0182 +/-0.0508 0.0467 +/-0.0508 0.0933 pCi/g Lead-212 1.37 +/-0.116 0.022 +/-0.116 0.0439 pCi/g Lead-214 1.33 +/-0.128 0.0262 +/-0.128 0.0524 pCi/g Manganese-54 U -0.00634 +/-0.0182 0.014 +/-0.0182 0.028 pCi/g Niobium-94 U 0.0143 +/-0.0146 0.0129 +/-0.0146 0.0257 pCi/g Potassium-40 20.8 +/-1.56 0.121 +/-1.56 0.242 pCi/g Radium-226 1.13 +/-0.124 0.0248 +/-0.124 0.0495 pCi/g Silver-108m U -0.0159 +/-0.0141 0.012 +/-0.0141 0.0239 pCi/g Thallium-208 0.453 +/-0.051 0.0128 +/-0.051 0.0257 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U -0.0274 +/-0.0164 0.0175 +/-0.0164 0.0396 pCi/g KSDI 03/29/07 1639 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified 37

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-OO1F Project: YANK01204 Sample ID: 183090001 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch D Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 77 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

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

38

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-002F Proiect: YANK01204 Sample ID: 183090002 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: .361%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Di Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.41 +/-0.202 0.0616 +/-0.202 0.123 pCi/g MJHI 03/28/07 1934 620458 Americium-241 U 0.0356 +/-0.0321 0.0246 +/-0.0321 0.0491 pCi/g Bismuth-212 1.06 +/-0.348 0.134 +/-0.348 0.267 pCi/g Bismuth-214 1.30 +/-0.155 0.0297 +/-0.155 0.0594 pCi/g Cesium-134 UT 0.00 +/-0.0333 0.022 +/-0.0333 0.044 pCi/g Cesium-137 U 0.0245 +/-0.0211 0.017 +/-0.0211 0.034 pCi/g Cobalt-60 U 0.0148 +/-0.0231 0.0181 +/-0.0231 0.0363 pCi/g Europium-152 U 0.018 +/-0.0641 0.0393 +/-0.0641 0.0786 pCi/g Europium-154 U -0.0489 +/-0.0811 0.0553 +/-0.0811 0.111 pCi/g Europium-155 UI 0.00 +/-0.054 0.0376 +/-0.054 0.0751 pCi/g Lead-212 1.31 +/-0.123 0.0217 +/-0.123 0.0433 pCi/g Lead-214 1.36 +/-0.143 0.0267 +/-0.143 0.0534 pCi/g Manganese-54 U 0.0222 +/-0.0291 0.018 +/-0.0291 0.036 pCi/g Niobium-94 U 0.0157 +/-0.0181 0.0164 +/-0.0181 0.0327 pCi/g Potassium-40 20.2 +/-0.973 0.140 +/-0.973 0.279 pCi/g Radium-226 1.30 +/-0.155 0.0297 +/-0.155 0.0594 pCi/g Silver-108m U -0.0079 +/-0.0193 0.0142 +/-0.0193 0.0285 pCi/g Thallium-208 0.459 +/-0.0584 0.0154 +/-0.0584 0.0307 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00135 +/-0.0208 0.0173 +/-0.0208 0.040 pCi/g KSDI 03/29/07 1639 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits 39

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-002F Project: YANK01204 Sample ID: 183090002 Client ID: YANK001 Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 72 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

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

40

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-003F Proiect: YANK01204 Sample ID: 183090003 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 1.02%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1D Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U -0.0591 +/-0.088 0.104 +/-0.0884 0.299 pCi/g GXRI 03/28/07 2157 620373 Curium-242 U 0.00137 +/-0.0745 0.0615 +/-0.0745 0.216 pCi/g Curium-243/244 U 0.012 +/-0.125 0.0995 +/-0.125 0.290 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 U -( 0.00491 +/-0.0955 0.0826 +/-0.0955 0.248 pCi/g GXRl 03/28/07 2157 620374 Plutonium-239/240 U 0.0466 +/-0.0875 0.0389 +/-0.0876 0.161 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U 4.18 +/-8.93 7.31 +/-8.95 15.4 pCi/g GXR1 03/30/07 0951 620376 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.07 +/-0.194 0.0599 +/-0.194 0.120 pCi/g MJHI 03/29/07 1103 620458 Americium-241 U 0.0533 +/-0.0743 0.0645 +/-0.0743 0.129 pCi/g Bismuth-212 0.864 +/-0.349 0.138 +/-0.349 0.276 pCi/g Bismuth-214 0.540 +/-0.101 0.0315 +/-0.101 0.063 pCi/g Cesium- 134 UI 0.00 +/-0.0335 0.0222 +/-0.0335 0.0443 pCi/g Cesium- 137 U -0.0134 +/-0.0211 0.0173 +/-0.0211 0.0347 pCi/g Cobalt-60 U 0.00563 +/-0.0211 0.0182 +/-0.0211 0.0365 pCi/g Europium-152 U -0.0382 +/-0.0629 0.0447 +/-0.0629 0.0894 pCi/g Europium- 154 U -0.00972 +/-0.0827 0.0592 +/-0.0827 0.118 pCi/g Europium-155 U 0.0242 +/-0.0774 0.0534 +/-0.0774 0.107 pCi/g Lead-212 1.03 +/-0.098 0.0258 +/-0.098 0.0515 pCi/g Lead-214 0.743 +/-0.0983 0.0316 +/-0.0983 0.0631 pCi/g Manganese-54 U 0.0159 +/-0.021 0.0172 +/-0.021 0.0344 pCi/g Niobium-94 U - 0.00642 +/-0.0188 0.0157 +/-0.0188 0.0315 pCi/g Potassium-40 17.7 +/-1.43 0.114 +/-1.43 0.228 pCi/g Radium-226 0.540 +/-0.101 0.0315 +/-0.101 0.063 pCi/g Silver-108m U 0.00456 +/-0.0169 0.0153 +/-0.0169 0.0305 pCi/g Thallium-208 0.317 +/-0.0501 0.0161 +/-0.0501 0.0322 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U - 0.00772 +/-0.0119 0.0112 +/-0.0119 0.0264 pCi/g KSDI 04/02/07 1738 620441 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi/g Tritium U -I.32 +/-0.992 0.892 +/-0.992 1.87 pCi/g AXD2 03/27/07 1805 620336 41

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-003F Project: YANK01204 Sample ID: 183090003 Client ID: YANK001O Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1P Rad Liquid Scintillation Analysis Liquid Scint C14, Solid AII,FSS Carbon-14 U -0.0684 +/-0.0891 0.0782 +/-0.0891 0.165 pCi/g AXD2 03/28/07 0249 620340 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U -1.82 +/-30.8 21.2 +/-30.8 44.5 pCi/g MXPI 03/29/07 1818 620450 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -0.321 +/-11.2 9.38 +/-11.2 19.7 pCi/g MXPI 03/29/07 1820 620451 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.436 +/-0.211 0.186 +/-0.211 0.380 pCi/g MXP1 04/02/07 1940 620337 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 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 I-RC Modified 4 EML HASL 300, 4.5.2.3 5 EPA 905.0 Modified 6 EPA 905.0 Modified 7 EPA 906.0 Modified 8 EPA EERF C-01 Modified 9 DOE RESL Fe-I, Modified 10 DOE RESL Ni-1, Modified II DOE EML HASL-300, Tc-02-RC Modified 12 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Tracer Alphaspec Am241, Cm, Solid ALL 83 (15%-125%)

Plutonium-242 Tracer Alphaspec Pu, Solid-ALL FSS 96 (15%-125%)

Plutonium-242 Tracer Liquid Scint Pu241, Solid-ALL F5 88 (25%-125%)

Strontium Carrier GFPC, Sr90, solid-ALL FSS 71 (25%-125%)

Iron-59 Tracer Liquid Scint Fe55, Solid-ALL FS 76 (15%-125%)

Nickel Carrier Liquid Scint Ni63, Solid-ALL FS 70 (25%-125%)

42

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-003F Project: YANK01204 Sample ID: 183090003 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Di Technetium-99m Tracer Liquid Scint Tc99, Solid-ALL FS 76 (15%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-004F Proiect: YANK01204 Sample ID: 183090004 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 1.57%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1P Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U 0.0298 +/-0.119 0.0858 +/-0.119 0.258 pCi/g GXR1 03/28/07 2157 620373 Curium-242 U 0.00131 +/-0.071 0.0586 +/-0.071 0.206 pCi/g Curium-243/244 U -0.0752 +/-0.084 0.107 +/-0.0846 0.300 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 U -0.042 +/-0.0368 0.0702 +/-0.0371 0.235 pCi/g GXR1 03/28/07 2157 620374 Plutonium-239/240 U 0.0266 +/-0.0705 0.0314 +/-0.0706 0.158 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U -7.84 +/-7.95 7.04 +/-7.95 14.8 pCi/g GXR1 03/30/07 1007 620376 Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.926 +/-0.251 0.0749 +/-0.251 0.150 pCi/g MJHI 03/29/07 1144 620458 Americium-241 U 0.00579 +/-0.047 0.033 +/-0.047 0.066 pCi/g Bismuth-212 0.654 +/-0.354 0.186 +/-0.354 0.372 pCi/g Bismuth-214 0.756 +/-0.126 0.0402 +/-0.126 0.0803 pCi/g Cesium-134 U 0.0497 +/-0.0442 0.0254 +/-0.0442 0.0508 pCi/g Cesium-137 U 0.00786 +/-0.0277 0.0241 +/-0.0277 0.0481 pCi/g Cobalt-60 U 0.0195 +/-0.0284 0.0228 +/-0.0284 0.0455 pCi/g Europium-152 U. 0.0156 +/-0.0835 0.0578 +/-0.0835 0.116 pCi/g Europium-154 U 0.00188 +/-0.0819 0.0692 +/-0.0819 0.138 pCi/g Europium-155 U 0.047 +/-0.062 0.0576 +/-0.062 0.115 pCi/g Lead-212 0.865 +/-0.116 0.0309 +/-0.116 0.0618 pCi/g Lead-214 0.864 +/-0.136 0.0377 +/-0.136 0.0753 pCi/g Manganese-54 U 0.0228 +/-0.0267 0.0197 +/-0.0267 0.0394 pCi/g Niobium-94 U 0.00489 +/-0.0249 0.0214 +/-0.0249 0.0427 pCi/g Potassium-40 13.7 +/-1.24 0.188 +/-1.24 0.375 pCi/g Radium-226 0.756 +/-0.126 0.0402 +/-0.126 0.0803 pCi/g Silver-108m U -0.0132 +/-0.0209 0.0176 +/-0.0209 0.0353 pCi/g Thallium-208 0.318 +/-0.0583 0.0222 +/-0.0583 0.0443 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U -0.000415 +/-0.0197 0.0166 +/-0.0197 0.0385 pCi/g KSDI 03/29/07 1639 620441 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi/g Tritium U -0.538 +/-1.04 0.900 +/-1.04 1.89 pCi/g AXD2 03/27/07 1906 620336 44

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-004F Proiect: YANK01204 Sample ID: 183090004 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Rad Liquid Scintillation Analysis Liquid Scint C14, Solid All, FSS Carbon-14 U 0.0327 +/-0.0821 0.0672 +/-0.0821 0.142 pCi/g AXD2 03/28/07 2055 620340 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U 4.69 +/-29.2 20.0 +/-29.2 42.1 pCi/g MXP1 03/29/07 1835 620450 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U 1.90 +/-8.83 7.33 +/-8.83 15.4 pCi/g MXP1 03/29/07 1837 620451 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.459 +/-0.193 0.172 +/-0.193 0.351 pCi/g MXPI 04/02/07 2027 620337 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu-I I-RC Modified 3 DOE EML HASL-300, Pu-I I-RC Modified 4 EML HASL 300,4.5.2.3 5 EPA 905.0 Modified 6 EPA 906.0 Modified 7 EPA EERF C-01 Modified 8 EPA EERF C-01 Modified 9 DOE RESL Fe-I, Modified 10 DOE RESL Ni-l, Modified II DOE EML HASL-300, Tc-02-RC Modified 12 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Tracer Alphaspec Am241, Cm, Solid ALL 89 (15%-125%)

Plutonium-242 Tracer Alphaspec Pu, Solid-ALL FSS 79 (15%-125%)

Plutonium-242 Tracer Liquid Scint Pu241, Solid-ALL Fý 91 (25%-125%)

Strontium Carrier GFPC, Sr90, solid-ALL FSS 76 (25%-125%)

lron-59 Tracer Liquid Scint Fe55, Solid-ALL FS 73 (15%-125%)

Nickel Carrier Liquid Scint Ni63, Solid-ALL FS 89 (25%-125%)

45

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-004F Project: YANK01204 Sample ID: 183090004 Client ID: YANK001 Vol. Recv.:

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

Technetium-99m Tracer Liquid Scint Tc99, Solid-ALL FS 83 (15%-125%)

Notes:

The Qualifiers in this report are defined as follows:

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

46

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-005F Proiect: YANK01204 Sample ID: 183090005 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 7.23%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.806 +/-0.176 0.0582 +/-0.176 0.116 pCi/g MJH1 03/29/07 1145 620458 Americium-241 U -0.10 +/-0.0868 0.0777 +/-0.0868 0.155 pCi/g Bismuth-212 0.724 +/-0.313 0.127 +/-0.313 0.253 pCi/g Bismuth-214 0.423 +/-0.0848 0.0321 +/-0.0848 0.0642 pCi/g Cesium-134 U 0.0344 +/-0.0665 0.0204 +/-0.0665 0.0407 pCi/g Cesium-137 U 0.00134 +/-0.021 0.018 +/-0.021 0.036 pCi/g Cobalt-60 U 0.00151 +/-0.0217 0.0183 +/-0.0217 0.0366 pCi/g Europium-152 U 0.0164 +/-0.059 0.0415 +/-0.059 0.0829 pCi/g Europium-154 U 0.0276 +/-0.0661 0.058 +/-0.0661 0.116 pCi/g Europium-155 U 0.0301 +/-0.0595 0.0551 +/-0.0595 0.110 pCi/g Lead-212 0.659 +/-0.0775 0.0253 +/-0.0775 0.0505 pCi/g Lead-214 0.529 +/-0.0966 0.0306 +/-0.0966 0.0612 pCi/g Manganese-54 U 0.00217 +/-0.0203 0.0179 +/-0.0203 0.0357 pCi/g Niobium-94 U -0.00844 +/-0.0196 0.0161 +/-0.0196 0.0321 pCi/g Potassium-40 11.9 +/-1.14 0.135 +/-1.14 0.270 pCi/g Radium-226 0.423 +/-0.0848 0.0321 +/-0.0848 0.0642 pCi/g Silver-108m U -0.00547 +/-0.0167 0.0144 +/-0.0167 0.0288 pCi/g Thallium-208 0.184 +/-0.0477 0.0166 +/-0.0477 0.0332 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U -0.0148 +/-0.0175 0.0164 +/-0.0175 0.037 pCi/g KSDI 03/29/07 1640 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits 47

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-005F Project: YANK01204 Sample ID: 183090005 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 92 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows:

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

48

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-005FS Project: YANK01204 Sample ID: 183090006 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 6.93%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.581 +/-0.159 0.0603 +/-0.159 0.121 pCi/g MJHI 03/29/07 1145 620458 Americium-241 U 0.0263 +/-0.0658 0.0551 +/-0.0658 0.110 pCi/g Bismuth-212 0.494 +/-0.258 0.117 +/-0.258 0.233 pCi/g Bismuth-214 0.494 +/-0.0847 0.031 +/-0.0847 0.0619 pCi/g Cesium-] 34 UI 0.00 +/-0.0382 0.021 +/-0.0382 0.042 pCi/g Cesium-137 U 0.00564 +/-0.021 0.0182 +/-0.021 0.0363 pCi/g Cobalt-60 U -0.00296 +/-0.0209 0.0146 +/-0.0209 0.0291 pCi/g Europium-152 U 0.0378 +/-0.0454 0.0461 +/-0.0454 0.0922 pCi/g Europium-154 U 0.0133 +/-0.0656 0.0489 +/-0.0656 0.0977 pCi/g Europium-155 U -0.0167 +/-0.0498 0.0445 +/-0.0498 0.089 pCi/g Lead-212 0.645 +/-0.0795 0.0265 +/-0.0795 0.0529 pCi/g Lead-214 0.500 +/-0.0869 0.0315 +/-0.0869 0.0629 pCi/g Manganese-54 U -0.00194 +/-0.0207 0.018 +/-0.0207 0.0359 pCi/g Niobium-94 U 0.0111 +/-0.0184 0.0163 +/-0.0184 0.0325 pCi/g Potassium-40 11.2 +/-1.01 0.140 +/-1.01 0.279 pCi/g Radium-226 0.494 +/-0.0847 0.031 +/-0.0847 0.0619 pCi/g Silver-108m U2.680E-05 +/-0.017 0.015 +/-0.017 0.0299 pCi/g Thallium-208 0.213 +/-0.0426 0.0159 +/-0.0426 0.0318 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.0179 +/-0.0181 0.0128 +/-0.0181 0.0298 pCi/g KSDI 03/29/07 1640 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits 49

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Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-005FS Project: YANKO01204 Sample ID: 183090006 Client ID: YANK001 Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 93 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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 +/-RI. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-006F Project: YANK01204 Sample ID: 183090007 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 2.77%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1P Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.940 +/-0.193 0.0606 +/-0.193 0.121 pCi/g MJH1 03/29/07 1146 620458 Americium-241 U 0.0314 +/-0.0978 0.0806 +/-0.0978 0.161 pCi/g Bismuth-212 0.683 +/-0.249 0.135 +/-0.249 0.269 pCi/g Bismuth-214 0.662 +/-0.101 0.0323 +/-0.101 0.0645 pCi/g Cesium-134 U 0.0435 +/-0.0333 0.0255 +/-0.0333 0.051 pCi/g Cesium-137 U 0.00196 +/-0.0375 0.0192 +/-0.0375 0.0384 pCi/g Cobalt-60 U -0.0144 +/-0.0223 0.0177 +/-0.0223 0.0355 pCi/g Europium-152 U -0.00394 +/-0.0617 0.0469 +/-0.0617 0.0938 pCi/g Europium-154 U 0.0301 +/-0.0672 0.0574 +/-0.0672 0.115 pCi/g Europium-155 U 0.0444 +/-0.0629 0.0608 +/-0.0629 0.122 pCi/g Lead-212 0.916 +/-0.0927 0.0288 +/-0.0927 0.0577 pCi/g Lead-214 0.736 +/-0.103 0.0354 +/-0.103 0.0708 pCi/g Manganese-54 U -0.0042 +/-0.0209 0.0176 +/-0.0209 0.0353 pCi/g Niobium-94 U1.670E-05 +/-0.0195 0.017 +/-0.0195 0.034 pCi/g Potassium-40 16.4 +/-1.40 0.167 +/-1.40 0.335 pCi/g Radium-226 0.662 +/-0.101 0.0323 +/-0.101 0.0645 pCi/g Silver-108m U -0.0074 +/-0.0218 0.0158 +/-0.0218 0.0316 pCi/g Thallium-208 0.319 +/-0.0536 0.0182 +/-0.0536 0.0365 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U -0.00484 +/-0.0182 0.016 +/-0.0182 0.037 pCi/g KSDI 03/29/07 1640 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits S1

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Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-006F Project: YANK01204 Sample ID: 183090007 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 76 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

92

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-007F Project: YANK01204 Sample ID: 183090008 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 7.95%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Di Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.990 +/-0.228 0.072 +/-0.228 0.144 pCi/g MJH1 03/29/07 1146 620458 Americium-241 U 0.0285 +/-0.0369 0.0289 +/-0.0369 0.0578 pCi/g Bismuth-212 0.618 +/-0.299 0.149 +/-0.299 0.299 pCi/g Bismuth-214 0.690 +/-0.120 0.0348 +/-0.120 0.0695 pCi/g Cesium-134 U 0.0415 +/-0.0425 0.0251 +/-0.0425 0.0502 pCi/g Cesium-137 U 0.0147 +/-0.0296 0.0199 +/-0.0296 0.0398 pCi/g Cobalt-60 U 0.0182 +/-0.0245 0.0221 +/-0.0245 0.0442 pCi/g Europium-152 U -0.032 +/-0.0759 0.0491 +/-0.0759 0.0982 pCi/g Europium-154 U 0.0304 +/-0.0756 0.0659 +/-0.0756 0.132 pCi/g Europium-155 U 0.0701 +/-0.0739 0.0464 +/-0.0739 0.0927 pCi/g Lead-212 0.795 +/-0.101 0.0266 +/-0.101 0.0531 pCi/g Lead-214 0.784 +/-0.100 0.0323 +/-0.100 0.0646 pCi/g Manganese-54 U -0.00477 +/-0.0235 0.0201 +/-0.0235 0.0402 pCi/g Niobium-94 U-0.000202 +/-0.0209 0.0175 +/-0.0209 0.0351 pCi/g Potassium-40 13.5 +/-1.24 0.167 +/-1.24 0.333 pCi/g Radium-226 0.690 +/-0.120 0.0348 +/-0.120 0.0695 pCi/g Silver-108m U -0.00499 +/-0.0183 0.0157 +/-0.0183 0.0314 pCi/g Thallium-208 0.247 +/-0.0519 0.0195 +/-0.0519 0.0389 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U -0.00822 +/-0.0185 0.0166 +/-0.0185 0.0381 pCi/g KSD1 03/29/07 1640 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-007F Project: YANK01204 Sample ID: 183090008 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch P Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS - 80 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

-94

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-008F Project: YAN K01204 Sample ID: 183090009 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 9.59%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.628 +/-0.169 0.0601 +/-0.169 0.120 pCi/g MJHI 03/29/07 1147 620458 Americium-241 U 0.0216 +/-0.0308 0.0306 +/-0.0308 0.0611 pCi/g Bismuth-212 U 0.176 +/-0.224 0.200 +/-0.224 0.400 pCi/g Bismuth-214 0.389 +/-0.0936 0.0385 +/-0.0936 0.077 pCi/g Cesium-134 U 0.0492 +/-0.0336 0.0264 +/-0.0336 0.0529 pCi/g Cesium-I 37 U 0.036 +/-0.0268 0.0196 +/-0.0268 0.0391 pCi/g Cobalt-60 U-0.000859 +/-0.0303 0.0215 +/-0.0303 0.0429 pCi/g Europium-152 U -0.0559 +/-0.054 0.0448 +/-0.054 0.0894 pCi/g Europium-154 U -0.0565 +/-0.093 0.0629 +/-0.093 0.126 pCi/g Europium-155 U 0.0114 +/-0.0535 0.0469 +/-0.0535 0.0937 pCi/g Lead-212 0.515 +/-0.0712 0.0257 +/-0.0712 0.0513 pCi/g Lead-214 0.451 +/-0.0951 0.0378 +/-0.0951 0.0756 pCi/g Manganese-54 U 0.00805 +/-0.0273 0.0216 +/-0.0273 0.0431 pCi/g Niobium-94 U -0.016 +/-0.0254 0.0197 +/-0.0254 0.0393 pCi/g Potassium-40 9.23 +/-1.10 0.185 +/-1.10 0.370 pCi/g Radium-226 0.389 +/-0.0936 0.0385 +/-0.0936 0.077 pCi/g Silver-108m U -0.00512 +/-0.0182 0.0156 +/-0.0182 0.0311 pCi/g Thallium-208 0.188 +/-0.0561 0.0217 +/-0.0561 0.0433 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00596 +/-0.0222 0.0181 +/-0.0222 0.0398 pCi/g KSDI 04/02/07 1738 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified 3 EPA 905.0 Modified 5-

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-008F Proiect: YANK01204 Sample ID: 183090009 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pt Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 78 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows:

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-009F Proiect: YANK01204 Sample ID: 183090010 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 7.91%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch P Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.881 +/-0.186 0.0626 +/-0.186 0.125 pCi/g MJH1 03/29/07 1147 620458 Americium-241 U 0.0707 +/-0.0879 0.075 +/-0.0879 0.150 pCi/g Bismuth-212 0.592 +/-0.232 0.124 +/-0.232 0.248 pCi/g Bismuth-214 0.563 +/-0.100 0.0321 +/-0.100 0.0641 pCi/g Cesium-134 U 0.0407 +/-0.0366 0.0241 +/-0.0366 0.0481 pCi/g Cesium-I 37 U -0.0077 +/-0.0225 0.0189 +/-0.0225 0.0377 pCi/g Cobalt-60 U 0.0169 +/-0.0232 0.0212 +/-0.0232 0.0424 pCi/g Europium-152 U -0.00112 +/-0.0728 0.050 +/-0.0728 0.100 pCi/g Europium-154 U -0.0132 +/-0.0692 0.0582 +/-0.0692 0.116 pCi/g Europium-155 U 0.0847 +/-0.0605 0.0575 +/-0.0605 0.115 pCi/g Lead-212 0.818 +/-0.0869 0.0274 +/-0.0869 0.0548 pCi/g Lead-214 0.642 +/-0.101 0.0343 +/-0.101 0.0686 pCi/g Manganese-54 U 0.00469 +/-0.0209 0.018 +/-0.0209 0.0359 pCi/g Niobium-94 U -0.00447 +/-0.0186 0.0157 +/-0.0186 0.0313 pCi/g Potassium-40 13.6 +/-1.21 0.125 +/-1.21 0.250 pCi/g Radium-226 0.563 +/-0.100 0.0321 +/-0.100 0.0641 pCi/g Silver-108m U -0.00717 +/-0.0186 0.0161 +/-0.0186 0.0322 pCi/g Thallium-208 0.214 +/-0.0531 0.0161 +/-0.0531 0.0322 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, solid-ALL FSS Strontium-90 U 0.00995 +/-0.0158 0.012 +/-0.0158 0.0275 pCi/g KSDI 04/02/07 1738 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description 1 EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified 3 EPA 905.0 Modified

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-009F Project: YANK01204 Sample ID: 183090010 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 82 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows:

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

SR

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Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-OIOF Project: YANK01204 Sample ID: 183090011 Client ID: YANKOOI Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 9.48%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.702 +/-0.176 0.0769 +/-0.176 0.154 pCi/g MJHI 03/29/07 1148 620458 Americium-241 U -0.00743 +/-0.0371 0.0294 +/-0.0371 0.0588 pCi/g Bismuth-212 0.586 +/-0.349 0.187 +/-0.349 0.374 pCi/g Bismuth-214 0.563 +/-0.121 0.0415 +/-0.121 0.0829 pCi/g Cesium-134 U 0.0267 +/-0.0345 0.0284 +/-0.0345 0.0568 pCi/g Cesium-137 U 0.018 +/-0.026 0.0237 +/-0.026 0.0474 pCi/g Cobalt-60 U 0.00853 +/-0.0272 0.0238 +/-0.0272 0.0476 pCi/g Europium-152 U -0.0291 +/-0.0876 0.0503 +/-0.0876 0.100 pCi/g Europium-154 U 0.0124 +/-0.103 0.0878 +/-0.103 0.175 pCi/g Europium-155 U 0.0409 +/-0.0698 0.0483 +/-0.0698 0.0965 pCi/g Lead-212 0.731 +/-0.088 0.0272 +/-0.088 0.0543 pCi/g Lead-214 0.555 +/-0.101 0.0383 +/-0.101 0.0765 pCi/g Manganese-54 U 0.00444 +/-0.0267 0.0235 +/-0.0267 0.047 pCi/g Niobium-94 U -0.00552 +/-0.023 0.0198 +/-0.023 0.0396 pCi/g Potassium-40 11.7 +/-1.06 0.158 +/-1.06 0.315 pCi/g Radium-226 0.563 +/-0.121 0.0415 +/-0.121 0.0829 pCi/g Silver-108m U 0.00632 +/-0.0222 0.0197 +/-0.0222 0.0393 pCi/g Thallium-208 0.259 +/-0.0548 0.0188 +/-0.0548 0.0375 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U -0.0222 +/-0.0218 0.021 +/-0.0218 0.0473 pCi/g KSDI 03/30/07 1834 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-OIOF Proiect: YANK01204 Sample ID: 183090011 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1D Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 79 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

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

60

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-01F Project: YANK01204 Sample ID: 183090012 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 5.88%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pt Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.830 +/-0.171 0.0488 +/-0.171 0.0976 pCi/g MJHI 03/29/07 1149 620458 Americium-241 U 0.00539 +/-0.0721 0.0627 +/-0.0721 0.125 pCi/g Bismuth-212 0.621 +/-0.228 0.109 +/-0.228 0.219 pCi/g Bismuth-214 0.584 +/-0.0976 0.0269 +/-0.0976 0.0537 pCi/g Cesium-134 U 0.0341 +/-0.0218 0.0189 +/-0.0218 0.0377 pCi/g Cesium-137 U-0.000723 +/-0.0186 0.0159 +/-0.0186 0.0319 pCi/g Cobalt-60 U -0.00287 +/-0.0168 0.0141 +/-0.0168 0.0283 pCi/g Europium-152 U -0.0504 +/-0.0627 0.039 +/-0.0627 0.0779 pCi/g Europium-154 UI 0.00 +/-0.162 0.0483 +/-0.162 0.0965 pCi/g Europium-155 U 0.0549 +/-0.0659 0.0479 +/-0.0659 0.0958 pCi/g Lead-212 0.889 +/-0.0856 0.0246 +/-0.0856 0.0491 pCi/g Lead-214 0.693 +/-0.0905 0.0282 +/-0.0905 0.0563 pCi/g Manganese-54 U 0.00436 +/-0.0174 0.0154 +/-0.0174 0.0308 pCi/g Niobium-94 U -0.0224 +/-0.0169 0.0134 +/-0.0169 0.0267 pCi/g Potassium-40 15.8 +/-1.21 0.114 +/-1.21 0.227 pCi/g Radium-226 0.584 +/-0.0976 0.0269 +/-0.0976 0.0537 pCi/g Silver-108m U 0.0053 +/-0.0153 0.0134 +/-0.0153 0.0267 pCi/g Thallium-208 0.289 +/-0.0421 0.0139 +/-0.0421 0.0279 pCi/g Rad. Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00974 +/-0.0211 0.0163 +/-0.0212 0.0382 pCi/g KSDI 03/30/07 1834 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-01IF Proiect: YANKO1204 Sample ID: 183090012 Client ID: YANK001 Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 71 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

62

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-012F Project: YANK01204 Sample ID: 183090013 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 8.15%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch P Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.10 +/-0.226 0.0647 +/-0.226 0.129 pCi/g MJHI 03/29/07 1203 620458 Americium-241 U 0.0876 +/-0.105 0.0822 +/-0.105 0.164 pCi/g Bismuth-212 0.495 +/-0.314 0.139 +/-0.314 0.278 pCi/g Bismuth-214 0.854 +/-0.120 0.034 +/-0.120 0.0679 pCi/g Cesium-134 U 0.0365 +/-0.0254 0.0228 +/-0.0254 0.0455 pCi/g Cesium-137 U 0.0038 +/-0.0244 0.0184 +/-0.0244 0.0367 pCi/g Cobalt-60 U -0.00747 +/-0.0224 0.0172 +/-0.0224 0.0343 pCi/g Europium-152 U -0.0588 +/-0.0807 0.0491 +/-0.0807 0.0982 pCi/g Europium-154 U -0.00856 +/-0.0663 0.0563 +/-0.0663 0.113 pCi/g Europium- 155 U -0.00223 +/-0.067 0.0551 +/-0.067 0.110 pCi/g Lead-212 1.03 +/-0.104 0.0272 +/-0.104 0.0544 pCi/g Lead-214 1.03 +/-0.125 0.0351 +/-0.125 0.0701 pCi/g Manganese-54 U 0.00572 +/-0.0223 0.0192 +/-0.0223 0.0385 pCi/g Niobium-94 U 0.0114 +/-0.0198 0.0175 +/-0.0198 0.035 pCi/g Potassium-40 17.0 +/-1.36 0.150 +/-1.36 0.301 pCi/g Radium-226 0.854 +/-0.120 0.034 +/-0.120 0.0679 pCi/g Silver-108m U -0.008 +/-0.0188 0.0155 +/-0.0188 0.031 pCi/g Thallium-208 0.348 +/-0.0563 0.0168 +/-0.0563 0.0336 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.0149 +/-0.0153 0.0108 +/-0.0153 0.0252 pCi/g KSDI 04/02/07 1738 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description 1 EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified 3 EPA 905.0 Modified

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy:

Project: Soils PO# 002332 Client Sample ID: 9312-0002-012F Project: YANK01204 Sample ID: 183090013 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 79 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

64

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-013F Project: YANK01204 Sample ID: 183090014 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 1.29%

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

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.56 +/-0.279 0.0703 +/-0.279 0.141 pCi/g MJH1 03/29/07 1204 620458 Americium-241 U 0.0833 +/-0.114 0.0941 +/-0.114 0.188 pCi/g Bismuth-212 0.941 +/-0.316 0.146 +/-0.316 0.292 pCi/g Bismuth-214 1.25 +/-0.151 0.0366 +/-0.151 0.0732 pCi/g Cesium-134 UI 0.00 +/-0.0406 0.0282 +/-0.0406 0.0563 pCi/g Cesium-137 U -0.00635 +/-0.0241 0.0205 +/-0.0241 0.0409 pCi/g Cobalt-60 U -0.00603 +/-0.0275 0.0227 +/-0.0275 0.0454 pCi/g Europium-152 U -0.0713 +/-0.0664 0.0525 +/-0.0664 0.105 pCi/g Europium-154 U -0.0612 +/-0.0812 0.0647 +/-0.0812 0.129 pCi/g Europium-155 U 0.0167 +/-0.0944 0.057 +/-0.0944 0.114 pCi/g Lead-212 1.53 +/-0.137 0.0301 +/-0.137 0.0601 pCi/g Lead-214 1.41 +/-0.163 0.039 +/-0.163 0.078 pCi/g Manganese-54 Ul 0.00 +/-0.0386 0.020 +/-0.0386 0.040 pCi/g Niobium-94 U -8.630E- +/-0.0224 0.0191 +/-0.0224 0.0382 pCi/g 05 Potassium-40 21.9 +/-1.80 0.210 +/-1.80 0.419 pCi/g Radium-226 1.25 +/-0.151 0.0366 +/-0.151 0.0732 pCi/g Silver-108m U 0.007 +/-0.0218 0.0186 +/-0.0218 0.0371 pCi/g Thallium-208 0.459 +/-0.0632 0.021 +/-0.0632 0.0421 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00414 +/-0.0144 0.0115 +/-0.0144 0.027 pCi/g KSDI 04/02/07 1739 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified 3 EPA 905.0 Modified 65

GEL 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: April 3, 2007 Contacti Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-013F Proiect: YANK01204 Sample ID: 183090014 Client ID: YANK001 Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 75 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows:

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

66

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-014F Project: YANK01204 Sample ID: 183090015 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 4.2%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1D Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.866 +/-0.172 0.0533 +/-0.172 0.107 pCi/g MJH1 03/29/07 1205 620458 Americium-241 U 0.0907 +/-0.0942 0.0788 +/-0.0942 0.158 pCi/g Bismuth-212 0.617 +/-0.209 0.103 +/-0.209 0.205 pCi/g Bismuth-214 0.588 +/-0.0982 0.0293 +/-0.0982 0.0586 pCi/g Cesium-134 U 0.0253 +/-0.0304 0.0195 +/-0.0304 0.039 pCi/g Cesium-137 U 0.0186 +/-0.0229 0.0178 +/-0.0229 0.0355 pCi/g Cobalt-60 U 0.000882 +/-0.019 0.0159 +/-0.019 0.0318 pCi/g Europium-152 U -0.005 +/-0.0633 0.0424 +/-0.0633 0.0847 pCi/g Europium-154 U -0.0765 +/-0.0631 0.0473 +/-0.0631 0.0946 pCi/g Europium-155 U 0.0591 +/-0.0572 0.0525 +/-0.0572 0.105 pCi/g Lead-212 0.869 +/-0.0829 0.0235 +/-0.0829 0.047 pCi/g Lead-214 0.750 +/-0.100 0.0275 +/-0.100 0.0549 pCi/g Manganese-54 U 0.0178 +/-0.0242 0.0141 +/-0.0242 0.0283 pCi/g Niobium-94 U -0.00682 +/-0.017 0.0139 +/-0.017 0.0277 pCi/g Potassium-40 15.0 +/-1.23 0.148 +/-1.23 0.296 pCi/g Radium-226 0.588 +/-0.0982 0.0293 +/-0.0982 0.0586 pCi/g Silver-108m U5.550E-05 +/-0.0157 0.0136 +/-0.0157 0.0273 pCi/g Thallium-208 0.287 +/-0.0434 0.0149 +/-0.0434 0.0299 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00693 +/-0.018 0.0141 +/-0.018 0.0328 pCi/g KSDI 03/30/07 1834 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-014F Project: YANK01204 Sample ID: 183090015 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1D Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 80 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

68

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-015F Proiect: YANK01204 Sample ID: 183090016 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 3.04%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U -0.118 +/-0.130 0.147 +/-0.131 0.376 pCi/g GXRI 03/28/07 2157 620373 Curium-242 U 0.103 +/-0.142 0.074 +/-0.143 0.232 pCi/g Curium-243/244 U 0.220 +/-0.226 0.134 +/-0.228 0.350 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 U -0.017 F/-0.0734 0.045 +/-0.0734 0.186 pCi/g GXRI 03/28/07 2157 620374 Plutonium-239/240 U 0.0355 +/-0.0695 0.00 +/-0.0696 0.0961 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U -3.5 +/-8.66 7.43 +/-8.66 15.6 pCi/g GXR1 03/30/07 1024 620376 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.27 +/-0.325 0.0872 +/-0.325 0.174 pCi/g MJHI 03/29/07 1412 620458 Americium-241 UI 0.00 +/-0.133 0.114 +/-0.133 0.227 pCi/g Bismuth-212 1.07 +/-0.346 0.192 +/-0.346 0.385 pCi/g Bismuth-214 1.12 +/-0.156 0.0459 +/-0.156 0.0917 pCi/g Cesium-134 U 0.070 +/-0.0557 0.0365 +/-0.0557 0.073 pCi/g Cesium-137 U 0.0148 +/-0.0356 0.0265 +/-0.0356 0.053 pCi/g Cobalt-60 U 0.0214 +/-0.0305 0.0273 +/-0.0305 0.0546 pCi/g Europium-152 U -0.0494 +/-0.122 0.0673 +/-0.122 0.135 pCi/g Europium-154 U -0.0334 +/-0.102 0.0837 +/-0.102 0.167 pCi/g Europium-155 U 0.0565 +/-0.113 0.0735 +/-0.113 0.147 pCi/g Lead-212 1.37 +/-0.138 0.0383 +/-0.138 0.0766 pCi/g Lead-214 1.25 +/-0.172 0.0486 +/-0.172 0.0971 pCi/g Manganese-54 U 0.0265 +/-0.0303 0.0272 +/-0.0303 0.0543 pCi/g Niobium-94 U 0.000907 +/-0.027 0.0235 +/-0.027 0.0469 pCi/g Potassium-40 20.4 +/-1.74 0.229 +/-1.74 0.458 pCi/g Radium-226 1.12 +/-0.156 0.0459 +/-0.156 0.0917 pCi/g Silver-108m U -0.0045 +/-0.0248 0.0215 +/-0.0248 0.043 pCi/g Thallium-208 0.411 +/-0.0679 0.0237 +/-0.0679 0.0474 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U -0.00187 +/-0.0164 0.0141 +/-0.0164 0.0334 pCi/g KSDI 03/30/07 1834 620441 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi/g Tritium U -0.22 +/-1.03 0.878 +/-1.03 1.84 pCi/g AXD2 03/27/07 2007 620336 69

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-015F Project: YANK01204 Sample ID: 183090016 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Rad Liquid Scintillation Analysis Liquid Scint C04, Solid A II, FSS Carbon-14 U -0.0405 +/-0.0852 0.0735 +/-0.0852 0.155 pCi/g AXD2 03/28/07 0424 620340 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U -5.34 +/-27.5 19.1 +/-27.5 40.1 pCi/g MXPI 03/29/07 1852 620450 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -2.51 +/-8.99 7.66 +/-8.99 16.1 pCi/g MXPI 03/29/07 1853 620451 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.38 +/-0.192 0.169 +/-0.192 0.346 pCi/g MXPI 04/02/07 2114 620337 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu-I I-RC Modified 3 DOE EML HASL-300, Pu-I I-RC Modified 4 EML HASL 300,4.5.2.3 5 EPA 905.0 Modified 6 EPA 906.0 Modified 7 EPA EERF C-01 Modified 8 DOE RESL Fe-I, Modified 9 DOE RESL Ni-I, Modified 10 DOE EML HASL-300, Tc-02-RC Modified II DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Tracer Alphaspec Am241, Cm, Solid ALL 87 (15%-125%)

Plutonium-242 Tracer Alphaspec Pu, Solid-ALL FSS 78 (15%-125%)

Plutonium-242 Tracer Liquid Scint Pu241, Solid-ALL FS 87 (25%-125%)

Strontium Carrier GFPC, Sr90, solid-ALL FSS 74 (25%- 125%)

Iron-59 Tracer Liquid Scint Fe55, Solid-ALL FS 77 (15%-125%)

Nickel Carrier Liquid Scint Ni63, Solid-ALL FS 85 (25%-125%)

Technetium-99m Tracer Liquid Scint Tc99. Solid-ALL FS 84 (15%-125%)

70

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-015F Project: YANK01204 Sample ID: 183090016 Client ID: YANK001 Vol. Recv.:

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

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

71

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-016B Project: YANK01204 Sample ID: 183090017 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 2.4%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch P Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.654 +/-0.204 0.0848 +/-0.204 0.170 pCi/g MJHI 03/29/07 1413 620458 Americium-241 U 0.024 +/-0.0244 0.0357 +/-0.0244 0.0714 pCi/g Bismuth-212 0.484 +/-0.461 0.196 +/-0.461 0.392 pCi/g Bismuth-214 0.559 +/-0.103 0.0476 +/-0.103 0.0952 pCi/g Cesium-134 UI 0.00 +/-0.0415 0.0276 +/-0.0415 0.0553 pCi/g Cesium-137 U -0.0223 +/-0.0338 0.026 +/-0.0338 0.0519 pCi/g Cobalt-60 U 0.0228 +/-0.0305 0.0273 +/-0.0305 0.0546 pCi/g Europium-152 U -0.00974 +/-0.0819 0.063 +/-0.0819 0.126 pCi/g Europium-154 U 0.0541 +/-0.115 0.0762 +/-0.115 0.152 pCi/g Europium-155 U 0.0323 +/-0.0716 0.0614 +/-0.0716 0.123 pCi/g Lead-212 0.617 +/-0.0816 0.0336 +/-0.0816 0.0672 pCi/g Lead-214 0.555 +/-0.111 0.0434 +/-0.111 0.0868 pCi/g Manganese-54 U 0.0372 +/-0.0402 0.0238 +/-0.0402 0.0475 pCi/g Niobium-94 U 0.00216 +/-0.0276 0.0234 +/-0.0276 0.0468 pCi/g Potassium-40 10.8 +/-1.08 0.203 +/-1.08 0.406 pCi/g Radium-226 0.559 +/-0.103 0.0476 +/-0.103 0.0952 pCi/g Silver-108m U -0.00525 +/-0.0288 0.0216 +/-0.0288 0.0432 pCi/g Thallium-208 0.181 +/-0.0563 0.0254 +/-0.0563 0.0508 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U 0.0115 +/-0.0205 0.0156 +/-0.0205 0.0363 pCi/g KSDI 03/30/07 1834 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits 72

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-016B Project: YANK01204 Sample ID: 183090017 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1P Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 78 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-017B Proiect: YAN K01204 Sample ID: 183090018 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 2.08%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1P Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.696 +/-0.172 0.064 +/-0.172 0.128 pCi/g MJH1 03/29/07 1415 620458 Americium-241 U -0.0634 +/-0.0686 0.0599 +/-0.0686 0.120 pCi/g Bismuth-212 0.638 +/-0.285 0.132 +/-0.285 0.264 pCi/g Bismuth-214 0.559 +/-0.106 0.0324 +/-0.106 0.0648 pCi/g Cesium-134 U! 0.00 +/-0.0407 0.0217 +/-0.0407 0.0434 pCi/g Cesium-] 37 U 0.0169 +/-0.0257 0.0184 +/-0.0257 0.0368 pCi/g Cobalt-60 U 0.0167 +/-0.0235 0.0212 +/-0.0235 0.0424 pCi/g Europium-152 U -0.00226 +/-0.0676 0.0485 +/-0.0676 0.0969 pCi/g Europium-154 U -0.00772 +/-0.0665 0.0555 +/-0.0665 0.111 pCi/g Europium-155 U 0.0097 +/-0.0589 0.0522 +/-0.0589 0.104 pCi/g Lead-212 0.684 +/-0.0771 0.0263 +/-0.0771 0.0527 pCi/g Lead-214 0.619 +/-0.0932 0.0357 +/-0.0932 0.0713 pCi/g Manganese-54 U -0.0137 +/-0.0191 0.0156 +/-0.0191 0.0311 pCi/g Niobium-94 U 0.00149 +/-0.0201 0.017 +/-0.0201 0.0339 pCi/g Potassium-40 11.9 +/-1.13 0.150 +/-1.13 0.299 pCi/g Radium-226 0.559 +/-0.106 0.0324 +/-0.106 0.0648 pCi/g Silver-108m U 0.0129 +/-0.0196 0.0156 +/-0.0196 0.0313 pCi/g Thallium-208 0.187 +/-0.0441 0.0173 +/-0.0441 0.0346 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00719 +/-0.017 0.0132 +/-0.017 0.0308 pCi/g KSDI 03/30/07 1834 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits 74

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-017B Project: YANK01204 Sample ID: 183090018 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch D Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 84 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

75

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-018B Project: YANK01204 Sample ID: 183090019 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 23-MAR-07 Receive Date: 27-MAR-07 Collector: Client Moisture: 4.14%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pt Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.06 +/-0.201 0.0629 +/-0.201 0.126 pCi/g MJHI 03/29/07 1415 620458 Americium-241 U 0.103 +/-0.0794 0.0678 +/-0.0794 0.136 pCi/g Bismuth-212 0.832 +/-0.320 0.147 +/-0.320 0.294 pCi/g Bismuth-214 0.682 +/-0.108 0.0346 +/-0.108 0.0691 pCi/g Cesium-134 UI 0.00 +/-0.0295 0.0243 +/-0.0295 0.0485 pCi/g Cesium-137 U -0.0307 +/-0.024 0.0183 +/-0.024 0.0366 pCi/g Cobalt-60 U 0.00706 +/-0.0265 0.0197 +/-0.0265 0.0395 pCi/g Europium-152 U 0.00798 +/-0.0623 0.0485 +/-0.0623 0.097 pCi/g Europium-154 U -0.0468 +/-0.0891 0.0594 +/-0.0891 0.119 pCi/g Europium-1 55 U -0.0156 +/-0.0713 0.0558 +/-0.0713 0.112 pCi/g Lead-212 0.977 +/-0.0971 0.0281 +/-0.0971 0.0561 pCi/g Lead-214 0.786 +/-0.109 0.0335 +/-0.109 0.0669 pCi/g Manganese-54 U 0.015 +/-0.0183 0.0175 +/-0.0183 0.0351 pCi/g Niobium-94 U -0.00619 +/-0.0213 0.0176 +/-0.0213 0.0352 pCi/g Potassium-40 15.6 +/-1.33 0.165 +/-1.33 0.329 pCi/g Radium-226 0.682 +/-0.108 0.0346 +/-0.108 0.0691 pCi/g Silver-108m U -0.00103 +/-0.0188 0.0164 +/-0.0188 0.0327 pCi/g Thallium-208 0.298 +/-0.0546 0.0181 +/-0.0546 0.0362 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U -0.0233 +/-0.0161 0.0167 +/-0.0161 0.038 pCi/g KSDI 03/30/07 1835 620441 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 03/27/07 1007 620342 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits

GEL 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: April 3, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0002-018B Project: YANK01204 Sample ID: 183090019 Client ID: YANKOOl Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pt Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 89 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows:

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the 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 ND Analyte concentration is not detected above the detection limit 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.

77

I . I QUALITY CONTROL DATA I,

78

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Renort Date: April 3, 2007 Client: Connecticut Yankee Atomic Power Page I of 9 362 Injun Hollow Rd East Hampton, Connecticut

Contact:

Mr. Jack McCarthy Workorder: 183090 Parmname NOM Sample Oual OC Units RPD% REC% Ranue Anlst Date Time Rad Alpha Spec Batch 620373 QC1201303572 183090003 DUP Americium-241 U -0.0591 U 0.0944 pCi/g 870 (0% - 100%) GXR1 03/28/07 21:57 Uncert: +/-0.088 +/-0.175 TPU: +/-0.0884 +/-0.175 Curium-242 U 0.00137 U -0.0416 pCi/g 214 (0%- 100%)

Uncert: +/-0.0745 +/-0.0365 TPU: +/-0.0745 +/-0.0369 Curium-243/244 U 0.012 U 0.0745 pCi/g 145 (0%- 100%)

Uncert: +/-0.125 +/-0.189 TPU: +/-0.125 +/-0.190 QC1201303574 LCS Americium-241 13.0 13.2 pCi/g 102 (75%-125%) 03/28/07 21:57 Uncert: +/-1.20 TPU: +/-2.09 Curium-242 U 0.00804 pCi/g Uncert: +/-0.061 TPU: +/-0.061 Curium-243/244 15.6 15.7 pCi/g 101 (75%-125%)

Uncert: +/-1.31 TPU: +/-2.43 QC1201303571 MB Americium-241 U -0.0568 pCi/g 03/28/07 21:57 Uncert: +/-0.0446 TPU: +/-0.0452 Curium-242 U 0.00872 pCi/g Uncert: +/-0.0661 TPU: +/-0.0661 Curium-243/244 U -0.084 pCi/g Uncert: +/-0.143 TPU: +/-0.144 QCI 201303573 183090003 MS Americium-241 13.5 U -0.0591 12.8 pCi/g 95 (75%-125%)

Uncert: +/-0.088 +/-1.22 TPU +/-0.0884 +/-2.08 Curium-242 U 0.00137 U 0.0161 pCi/g Uncert: +/-0.0745 +/-0.0639 TPU +/-0.0745 +/-0.0639 Curium-243/244 16.2 U 0.012 15.9 pCi/g 98 (75%-125%)

Uncert: +/-0.125 +/-1.36 TPU +/-0.125 +/-2.49 Batch 620374 QC1201303576 183090003 DUP Plutonium-238 U -0.00491 U 0.00825 pCi/g 788 (0% - 100%) SXR1 03/28/07 21:57 79

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 183090 Page 2 of 9 Pnrmnnme NAM *!.mnle (hual AC TInit* 1RPfl) R1*C °/ Rainee Anlid T)nte Time Pairmname REC% Ran- AnIst Date me Rad Alpha Spec Batch 620374 Uncert: +/-0.0955 +/-0.0626 TPU: +/-0.0955 +/-0.0626 Plutonium-239/240 U 0.0466 U -0.0141 pCi/g 374 (0%- 100%)

Uncert: +/-0.0875 +/-0.061 TPU: +/-0.0876 +/-0.061 QC1201303578 LCS Plutonium-238 U 0.0685 pCi/g (75%-1 25%) 03/28/07 21:57 Uncert: +/-0.135 TPU: +/-0.135 Plutonium-239/240 13.0 12.7 pCi/g 98 (75%-125%)

Uncert: +/-1.20 TPU: +/-1.90 QC1201303575 MB Plutonium-238 U 0.0408 pCi/g 03/28/07 21:57 Uncert: +/-0.179 TPU: +/-0.179 Plutonium-239/240 U 0.0369 pCi/g Uncert: +/-0.0979 TPU: +/-0.098 QC1201303577 183090003 MS Plutonium-238 U -0.00491 U 0.0635 pCi/g (75%- 125%) 03/30/07 11:13 Uncert: +/-0.0955 +/-0.110 TPU: +/-0.0955 +/-0.110 Plutonium-239/240 13.5 U 0.0466 13.8 pCi/g 102 (75%-125%)

Uncert: +/-0.0875 +/-1.28 TPU: +/-0.0876 +/-2.04 Batch 620376 QC1201303580 183090003 DUP Plutonium-241 U 4.18 U 1.49 pCi/g 0 (0% - 100%) GXR1 03/30/07 10:57 Uncert: +/-8.93 +/-10.7 TPU: +/-8.95 +/-10.7 QC1201303582 LCS Plutonium-241 140 126 pCi/g 90 (75%-125%) 03/30/07 11:30 Uncert: +/-13.6 TPU: +/-18.0 QC1201303579 MB Plutonium-241 U 1.57 pCi/g 03/30/07 10:40 Uncert: +/-9.34 TPU: +/-9.34 QC1201303581 183090003 MS Plutonium-241 141 U 4.18 163 pCi/g 116 (75%-125%) 03/30/07 11:13 Uncert: +/-8.93 +/-15.2 TPU: +/-8.95 +/-22.3 Rad Gamma Spec Batch 620458 QC1201303804 183090001 DUP Actinium-228 1.52 1.88 pCi/g 22 (0%- 100%) MJHI 03/29/07 16:12 Uncert: +/-0.220 +/-0.383

+/-0.383 80

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 183090 Page 3 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 620458 TPU: +/-0.220 Americium-241 u 0.126 U 0.0775 pCi/g 47 (0% - 100%)

Uncert: +/-0.0954. +/-0.0574 TPU: +/-0.0954 +/-0.0574 Bismuth-212 0.849 1.15 pCi/g 30 (0% - 100%)

Uncert: +/-0.229 +/-0.534 TPU: +/-0.229 +/-0.534 Bismuth-214 1.13 1.32 pCi/g 15 (0%- 20%)

Uncert: +/-0.124 +/-0.212 TPU: +/-0.124 +/-0.212 Cesium- 134 UI 0.00 U 0.0643 pCi/g 12 (0% - 100%)

Uncert: +/-0.0294 +/-0.0679 TPU: +/-0.0294 +/-0.0679 Cesium- 137 u -0.00873 U -0.0365 pCi/g 123 (0%- 100%)

Uncert: +/-0.0193 +/-0.0342 TPU: +/-0.0193 +/-0.0342 Cobalt-60 u 0.00631 U 0.0153 pCi/g 83 (0%- 100%)

Uncert: +/-0.0196 +/-0.0366 TPU: +/-0.0196 +/-0.0366 Europium- 152 u -0.0526 U -0.0414 pCi/g 24 (0%- 100%)

Uncert: +/-0.0486 +/-0.107 TPU: +/-0.0486 +/-0.107 Europium- 154 U -0.0429 U 0.083 pCi/g 628 (0%- 100%)

Uncert: +/-0.0562 +/-0.112 TPU: +/-0.0562 +/-0.112 Europium- 155 U 0.0182 U 0.121 pCi/g 148 (0%- 100%)

Uncert: +/-0.0508 +/-0.105 TPU: +/-0.0508 +1-0.105 Lead-212 1.37 1.50 pCi/g 9 (0% - 20%)

Uncert: +/-0.116 +/-0.192 TPU: +/-0.116 +/-0.192 Lead-214 1.33 1.55 pCi/g 15 (0% - 20%)

Uncert: +/-0.128 +/-0.212 TPU: +/-0.128 +/-0.212 Manganese-54 u -0.00634 U 0.00943 pCi/g 1020 (0%- 100%)

Uncert: +/-0.0182 +/-0.0387 TPU: +/-0.0182 +/-0.0387 Niobium-94 U 0.0143 U 0.0265 pCi/g 60 (0%- 100%)

Uncert: +/-0.0146 +/-0.0355 TPU: +/-0.0146 +/-0.0355 Potassium-40 20.8 21.6 pCi/g 4 (0% - 20%)

Uncert: +/-1.56 +/-1.95 TPU: +/-1.56 +/-1.95 Radium-226 1.13 1.32 pCi/g 15 (0% - 100%)

Uncert: +/-0.124 +/-0.212 TPU: +/-0.124 +/-0.212 Silver- 108m U -0.0159 U -0.0045 pCi/g 112 (0%- 100%)

Uncert: +/-0.0141 +/-0.034 81

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gelcom QC Summary Workorder: 183090 Page 4 of 9 P~armnnlme NOM fiamnlP ",Mal OC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 620458 TPU: +/-0.0141 +/-0.034 Thallium-208 0.453 0.542 pCi/g 18 (0% - 20%)

Uncert: +/-0.051 +/-0.0816.

TPU: +/-0.051 +/-0.0816 QC1201303805 LCS Actinium-228 1.16 pCi/g 03/29/07 14:16 Uncert: +/-0.489 TPU: +/-0.489 Americium-241 16.0 13.2 pCi/g 83 (75%-125%)

Uncert: +/-1.62 TPU: +/-1.62 Bismuth-212 1.37 pCi/g Uncert: +/-0.877 TPU: +/-0.877 Bismuth-214 0.474 pCi/g Uncert: +/-0.238 TPU: +/-0.238 Cesium-134 U 0.0617 pCi/g Uncert: +/-0.0778 TPU: +/-0.0778 Cesium-137 6.20 6.13 pCi/g 99 (75%-125%)

Uncert: +/-0.576 TPU: +/-0.576 Cobalt-60 9.33 9.30 pCi/g 100 (75%-125%)

Uncert: +/-0.587 TPU: +/-0.587 Europium- 152 U 0.112 pCi/g Uncert: +/-0.188 TPU: +/-0.188 Europium- 154 U -0.0172 pCi/g Uncert: +/-0.152 TPU: +/-0.152 Europium- 155 U 0.0875 pCi/g Uncert: +/-0.237 TPU: +/-0.237 Lead-212 0.791 pCi/g Uncert: +/-0.167 TPU: +/-0.167 Lead-214 0.779 pCi/g Uncert: +/-0.236 TPU: +/-0.236 Manganese-54 U -0.0309 pCi/g Uncert: +/-0.0833 TPU: +/-0.0833 Niobium-94 U -0.0409 pCi/g Uncert: +/-0.0666 TPU: +/-0.0666 Potassium-40 1.32 pCi/g 82

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 183090 Page 5 of 9 Parmname NOM Sample Qua] QC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 620458 Uncert: +/-1.02 TPU: +/-1.02 Radium-226 0.474 pCi/g (75%-125%)

Uncert: +/-0.238 TPU: +/-0.238 Silver-108m U -0.00395 pCi/g Uncert: +/-0.0597 TPU: +/-0.0597 Thallium-208 0.339 pCi/g Uncert: +/-0.137 TPU: +/-0.137 QC1201303803 MB Actinium-228 U 0.0101 pCi/g 03/29/07 14:16 Uncert: +/-0.0574 TPU: +/-0.0574 Americium-241 U -0.0524 pCi/g Uncert: +/-0.0355 TPU: +/-0.0355 Bismuth-212 U -0.133 pCi/g Uncert: +/-0.145 TPU: +/-0.145 Bismuth-214 U -0.0218 pCi/g Uncert: +/-0.0392 TPU: +/-0.0392 Cesium- 134 U -0.00409 pCi/g Uncert: +/-0.0178 TPU: +/-0.0178 Cesium- 137 U 0.00128 pCi/g Uncert: +/-0.0143 TPU: +/-0.0143 Cobalt-60 U 0.0109 pCi/g Uncert: +/-0.0147 TPU: +/-0.0147 Europium- 152 U 0.0272 pCi/g Uncert: +/-0.0446 TPU: +/-0.0446 Europium- 154 U -0.00134 pCi/g Uncert: +/-0.0353 TPU: +/-0.0353 Europium- 155 U 0.0106 pCi/g Uncert: +/-0.0333 TPU: +/-0.0333 Lead-212 U 0.0135 pCi/g Uncert: +/-0.0463 TPU: +/-0.0463 Lead-214 U -0.0472 pCi/g Uncert: +/-0.0476 TPU: +/-0.0476 83

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 183090 Page 6 of 9 Parmname NOM Sample Qual (C Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 620458 Manganese-54 U -5.880E-05 pCi/g Uncert: +/-0.0143 TPU: +/-0.0143 Niobium-94 U -0.000105 pCi/g Uncert: +/-0.014 TPU: +/-0.014 Potassium-40 U 0.052 pCi/g Uncert: +/-0.253 TPU: +/-0.253 Radium-226 U -0.0218 pCi/g Uncert: +/-0.0392 TPU: +/-0.0392 Silver- 108m U -0.0134 pCi/g Uncert: +/-0.0173 TPU: +/-0.0173 Thallium-208 U 0.00391 pCi/g Uncert: +/-0.019 TPU: +/-0.019 Rad Gas Flow Batch 620441 QC1201303762 183090005 DUP Strontium-90 U -0.0148 U -0.00361 pCi/g 0 (0% - 100%) KSDI 03/30/07 18:34 Uncert: +/-0.0175 +/-0.0123 TPU: +/-0.0175 +/-0.0123 QC1201303764 LCS Strontium-90 1.41 1.29 pCi/g 92 (75%-125%) 03/30/07 18:34 Uncert: +/-0.0821 TPU: +/-0.0908 QC1201303761 MB Strontium-90 U -0.0111 pCi/g 03/30/07 18:34 Uncert: +/-0.0155 TPU: +/-0.0155 QC1201303763 183090005 MS Strontium-90 1.48 U -0.0148 1.52 pCilg 103 (75%-125%) 03/30/07 18:34 Uncert: +/-0.0175 +/-0.0949 TPU: +/-0.0175 +/-0.105 Rad Liquid Scintillation Batch 620336 QC1201303478 183090003 DUP Tritium U -1.32 U -0.543 pCi/g 0 (0% - 100%) NXD2 03/27/07 22:09 Uncert: +/-0.992 +/-1.02 TPU: +/-0.992 +/-1.02 QC1201303480 LCS Tritium 11.6 11.5 pCi/g 99 (75%-125%) 03/28/07 00:12 Uncert: +/-1.55 TPU: +/-1.56 QC1201303477 MB Tritium U -0.171 pCi/g 03/27/07 21:08 84

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 183090 Page 7 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Liquid Scintillation Batch 620336 Uncert: +/-1.05 TPU: +/-1.05 QC1201303479 183090003 MS Tritium 11.7 U -1.32 12.1 pCi/g 103 (75%-125%) 03/27/07 23:10 Uncert: +/-0.992 +/-1.59 TPU: +/-0.992 +/-1.60 Batch 620337 QC1201303485 183090003 DUP Technetium-99 U -0.436 U -0.411 pCi/g 0 (0% - 100%) "XPI 04/02/07 22:48 Uncert: +/-0.211 +/-0.199 TPU: +/-0.211 +/-0.199 QC1201303487 LCS Technetium-99 19.8 18.8 pCi/g 95 (75%-125%) 04/03/07 00:22 Uncert: +/-0.455 TPU: +/-0.645 QC1201303484 MB Technetium-99 U -0.414 pCi/g 04/02/07 22:01 Uncert: +/-0.176 TPU: +/-0.176 QC1201303486 183090003 MS Technetium-99 19.8 U -0.436 17.8 pCi/g 90 (75%-125%) 04/02/07 23:35 Uncert: +/-0.211 +/-0.453 TPU: +/-0.211 +/-0.624 Batch 620340 QC1201303490 183090003 DUP Carbon-14 U -0.0684 U -0.0831 pCi/g 0 (0% - 100%) NXD2 03/28/07 05:59 Uncert: +/-0.0891 +/-0.0824 TPU: +/-0.0891 +/-0.0824 QC1201303492 LCS Carbon-14 6.60 6.38 pCi/g 97 (75%-125%) 03/28/07 07:04 Uncert: +/-0.450 TPU: +/-0.460 QC1201303489 MB Carbon-14 U -0.0432 pCi/g 03/28/07 05:12 Uncert: +/-0.0857 TPU: +/-0.0857 QC1201303491 183090003 MS Carbon- 14 7.09 U -0.0684 7.36 pCi/g 104 (75%-125%) 03/28/07 06:47 Uncert: +/-0.0891 +/-0.492 TPU: +/-0.0891 +/-0.505 Batch 620450 QC1201303784 183090003 DUP Iron-55 U -1.82 U -16.2 pCi/g 0 (0% - 100%) VXP1 03/29/07 19:25 Uncert: +/-30.8 +/-28.1 TPU: +/-30.8 +/-28.1 QC1201303786 LCS Iron-55 1170 1060 pCi/g 90 (75%-125%) 03/29/07 19:59 Uncert: +/-57.7 TPU: +/-89.8

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 183090 Page 8 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Liquid Scintillation Batch 620450 QC1201303783 MB Iron-55 U -7.65 pCi/g 03/29/07 19:09 Uncert: +/-26.9 TPU: +/-26.9 QC1201303785 183090003 MS Iron-55 1180 U -1.82 1090 pCi/g 93 (75%-125%) 03/29/07 19:42 Uncert: +/-30.8 +/-62.8 TPU: +/-30.8 +/-94.4 Batch 620451 QC1201303788 183090003 DUP Nickel-63 U -0.321 U -3.22 pCi/g 0 (0% - 100%) \AXP1 03/29/07 19:26 Uncert: +/-11.2 +/-8.86 TPU: +/-11.2 +/-8.86 QC1201303790 LCS Nickel-63 573 516 pCi/g 90 (75%-125%) 03/29/07 19:58 Uncert: +/-23.7 TPU: +/-30.2 QC1201303787 MB Nickel-63 U -5.02 pCi/g 03/29/07 19:09 Uncert: +/-8.48 TPU: +/-8.48 QC1201303789 183090003 MS Nickel-63 589 U -0.321 508 pCi/g 86 (75%-125%) 03/29/07 19:42 Uncert: +/-11.2 +/-24.1

+1-11.2 +/-30.5 TPU:

Notes:

The Qualifiers in this report are defined as follows:

• • Analyte is a surrogate compound

< Result is less than value reported

> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.

0 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 ND Analyte concentration is not detected above the detection limit 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 QC Samples were not spiked with this compound 86

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 183090 Page 9 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Y

A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more.

• • Indicates analyte is a surrogate compound.

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

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

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

87

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(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0002 RELEASE RECORD ATTACHMENT 4 (DQA RESULTS)

Revision 0

SPENT FUEL BUILDING (SFB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0002 RELEASE RECORD ATTACHMENT 4A (PRELIMINARY DATA REVIEW)

Revision 0

SPENT FUEL BUILDING SURVEY UNIT 9312-0002 RELEASE RECORD Attachment 4 Survey Unit: 9312-0002 Area Description RCA, Spent Fuel Building Classification 1 Survey Media Surface Soils Type of Survey Final Status Survey Number of Measurements 15 Static, 3 Judgmental STATISTICS on TOTAL STATISTICS on NON-POPULATION PARAMETRIC POPULATION Cs-137 Co-60 Sr-90 Cs-137 Co-60 Sr-90 DCGLop (pCilg): 4.75E+00 2.29E+00 9.30E-01 DCGLop (pCilg): 4.75E+00 2.29E+00 9.30E-01 Minimum Value: -3.07E-02 -1.44E-02 -2.74E-02 Minimum Value: -1.34E-02 -1.44E-02 -2.74E-02 Maximum Value: 3.602-02 2.28E-02 1.79E-02 Maximum Value: 3.60E-02 2.14E-02 1.49E-02 Mean: 3.912-03 6.61 E-03 -1.12E-03 Mean: 6.98E-03 5.47E-03 -2.30E-03 Median: 3.80E-03 6.31 E-03 1.35E-03 Median: 3.80E-03 5.63E-03 -4.15E-04 Standard Deviation: 1.65E-02 1.09E-02 1.32E-02 Standard Deviation: 1.39E-02 1.10E-02 1.21E-02 Cs-137 Co-60 Sr-90 Sample ID GPS Coordinates North East Result (pci/g) 2a I MDA (pCilg)

[Identified Result (pCi/g) 2a MDA (pCi/g) jIdentified Result (pci/g)

[ 2cr MDA (pci/g)

Identified Fraction ofDG of DCGL 9312-0002-001F 236713.18 I 668770.07 -8,73E-03 i 0.019 i 2.76E-02 6.31E-03 i 0.020 i 2.89E-02 i -2.74E-02 0.016 3.96E-02 i -0.002 9312-0002-002F 236713.18 I 668808,84 2.45E-02 0.021 3.40E-02 + 1.48E-02 0,023 3.63E-02 1.35E-03 0.021 4,00E-02 0.005 9312-0002-003F ..236679.60

..... ..... 1....

668750.68

... ... .. ..-1.34E-02 0.021--- . 3.47E-02 5.63E-03 0.021 3.65E-02

--- --- --- ---.... ... ... .. ..-7.72E-03

---

... ... ... - 0.012 2.64E-02 T---------------... -0.003 9312-0002-004F 23667960 66878946 7.86E-03 0.028 4.81 E-02 1.952-02 0.028 4.552-02 -4.15E-04 0.020 3.852-02 0.002 9312-0002-005F 236679.60 j66882823 1342-03 0021 3.602-02 1.512-03 0.022 3662-02 -1.48-02 0,018 3702-02 0.000 9312-0002-006F 236646.02 , 668808.84 1.96E-03 0.038 3.84E-02 -1.44E-02 0.022 3.55E-02 -4.84E-03 0.018 3.70E-02 0.000 9312-0002-007F 236646.02 , 668847.62 1.47E-02 0.030 3.98E-02 1.82E-02 0.025 4.42E-02 -8.22E-03 0.019 3.81E-02 0.003 9312-0002-008F 236646.02 i 668886.39 3.60E-02 0.027 3.91 E-02 + -8.59E-04 0.030 4.29E-02 5.96E-03 0.022 3.98E-02 0.008 9312-0002-009F 236612.44 i668867.00 -7.70E-03 0.023 3.772-02 1.69E-02 0.023 424E-02 9.952-03 0.016 275-02 -0.002 9312-0002-01OF 236612.44 i 668905.78 1.80E-02 0.026 4.74E-02 8.53E-03 0.027 4.76E-02 -2.22E-02 0.022 4.73E-02 0.004 9312-0002-011F 236578.87 I 668847.62 -7.23E-04 0.019 3.19E-02 -2.87E-03 0.017 283202 9.74E-03 0021 382202 0.000 REVISION 0 Page I of 2

SPENT FUEL BUILDING SURVEY UNIT 9312-0002 RELEASE RECORD Attachment 4 Cs-137 Co-60 Sr-90 Sample ID GPS Coordinates Result 2o

[ MDA I Identified Result 2a MDA I IIdentified Result

[ 2cr ] MDA Identified Fraction ofDG North East (pCi/g) (pCi/g) (pCi/g) (pCi/g) (pCI/g)J (pCi/g) of DCGL 9312-0002-012F 236578.87 668886.39 3.80E-03 i 0.024 3.67E-02 -7.47E-03 0.022 3.43E-02 1.49E-02 0.015 2.52E-02 0.001 9312-0002-013F 236545.29 i 668828.23 -6.35E-03 ..---

0.024 . ..-. -... . . . ...-................

4.09E-02 . . .. . . . .. .-6.03E-03. ... . ..--. . 0.028 4.54E-02 4.14E-03 0.014 2.70E-02 -0.001 9312-0002-014F 23654529-

-0023 668867.00 1.86E-02 3 E02 8.82E-04 0.019 3.18E-02 6.93E-03 0.018 3.28E-02 0.004 236511.71 668847.62 1.48E-02 0,036 5.30E-02 2.14E-02 0031 5 46E -02 -1.872 -03 0016 3 34E -02 0.003 9312-0002-015F 9..312-0-OO---S.23667960.66882823 5.64E-03 0021 363E-02 -2.96E-03 0.021 .91E-02 -1.79E02 0018 2 98E-02 0.019 9312-0002-016-B 23667342 668842.07 -2.23E-02 0.034 .19E-02 2.28E-02 0031 546E-02 1.152-02 0021 363E-02 0.018 9312-0002-017-B -66889038 23656532 1.69-02 0026 368E02 1.67E-02 0.024 .24E -02 7.19E-03 0.017 .308E-02 0.019 23634 .3 .9 1 668 -. 3i2 9312-0002-018-B 23654443 66880984 -3.072-02 0024 3 66E-02 7.062E-03 0.027 396E-02 -2.33E-02 0016 3802-02 -0.028 OTHER RADIONUCLIDES Result IMDA IfDCGLOPI Fraction Isotope I j 2cr Identified F Sample ID (pCi/g) (pCi/g) (pCi/g) of DCGL 9312-0002-001F

..... Am-241 1.26E-01 {................

................................ 0.095

................................ 1.61E-01

.......i...... ...............

..i...........................

+ i.........................

1.6E+01 f....0.008 .................

9312-0002-002F Am-241 3.56E-02 i 0.032 4.91E-02 + 1.6E+01 0.002 I..............................

9312-0002-004F 1............

Cs-134 .....................

i......................

4.97E-02 i..............

0.044...... ....

i .............................

5.08E-02 .................................

+ }...............................

2.8E+00 i.....................

0.018 I....................

9312-0002-005F ...............................................................................

Cs-134 i....

4.35E-02 ....

i.................

1 0.033 I...........

i ...............................

5.10E-02 .........................

+ }...........................

2.8E+00 ...............................

.......0.016 9312-0002-008F .................

Cs-134 .......

i ............................

4.92E-02 ... i................................

0.034 i...............................

5.29E-02 ................................

+ }...............................

2.8E+00 ...........................

0.018 9312-0002-009F ...............................

Cs-134 ........................

f....... {.....................

4.07E-02 ...........

0,037 ................................

4.81E-02 .....................................

+ 2.8E+00 i...............................

0.015 9312-0002-009F Eu-155 8.47E-02 0,061 1.15E-01 + 2.4E+02 0.000 9312-0002-011 F Cs-134 3.41E-02 0.022 3.77E-02 + 2.8E+00 0.012 9312-0002-012F I............................. ..Cs-134

.................................................. 3.65E-02

... ......... 0.025 4.55E-02

............ + .......

2.8E+00 . .............................

0.013 9312-0002-014F I................................. Eu-155 5.91E-02 . ..................

0.057 1.05E-01 + .... 2.4E+02

............................. .......i .......

............................. 0.000 ..

9312-0002-015F Cs-134 7.00E-02 0.056 7.30E-02 + 2.8E+00 0025 9312-0002-018-B Am-241 i1.03E-01 i 0.079 i1,36E-01 i + i1.6E+01 i 0.007 REVISION 0 Page 2 of 2

SPENT FUEL BUILDING (SFB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0002 RELEASE RECORD ATTACHMENT 4B (GRAPHICAL REPRESENTATION OF DATA)

Revision 0

QUANTILE PLOT FOR CESIUM-137 Survey Unit: 9312-0002 Survey Unit Name: RCA - Spent Fuel Building (SFB)

Mean:

... e _ 6.98E-03

_.. -Pt-....... pCi/g lo..................

..... i.3 Quantile Plot For Cs-t37 4.OOE-02 3-OOE-02 O 2.OOE-02 C

• 1. 00E-02 0

C L)00E+00 0

V

-1.00E-02

-2.00E-02 0 20 40 60 80 100 Percentage Cs-137 Rank Percentage

-1.34E-02 1 3.3%

-8.73,E-03 2 10.0%

-7.70E-03 3 16.7%

-6.35E-03 "4 23.3%

-7.23E-04 5 30.0%

1.34E-03 6 36.7%

1.96E-03 7 43.3%

3.80E-03 8 50.0%

7.86E-03 9 56.7%

1.47E-02 10 63.3%

1.48E-02 11 70.0%

1.80E-02 12 76.7%

1.86E-02 13 83.3%

2.45E-02 14 90.0%

3.601:'-02 15 96.7%

• .~ý Sub itted b/Date

• 1o, 11*

7

ýI0*

Reviewed by/Date - '

FREQUENCY PLOT FOR CESIUM-137 Survey Unit: 9312-0002 Survey Unit Name: RCA - Spent Fuel Building (SFB)

Mean: 6.98E-03 pCi/g Frequency Plot For Cs-137 10 8

U.

4-2 0 I I I

-5.17E-03 3.07E-0 3 1.13E-02 1.95E-02 2.78E-02 3.60E-02 Upper End Value (pCilg)

Upper End Observation Observation Value Frequency Frequency

-5.17E-03 4 27%

3.07E-03 3 20%

1.13E-02 - 2 13%

1.95E-02 4 27%

2.78E-02 1 7%

3.60E-02 1 7%

Total: 15 100%

IC 4)1, 107 STbited b/Date Reviewed by/Date 1 of 1

SPENT FUEL BUILDING (SFB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0002 RELEASE RECORD ATTACHMENT 4C (SIGN TEST)

Revision 0

Connecticut Yankee Decommissioning Project GPP-GGGR-R5121-001 Attachment B, Health Physics Procedure Rev.CY-001 MAJOR Sign Test Calculation Sheet for Multiple Radionuclides Survey Area Number: 9312 Survey Unit Number: 0002 WPIR #: N/A Survey Area Name: Spent Fuel Building (SFB) Classification: 1 TYPE I (a error): 0.05 N: 15 Radionuclides: 1st Radionuclide 2 nd Radionuclide 3 rd Radionuclide 4 th Radionuclide Cs-137 Co-60 Sr-90 DCGL: 4.75E+00 2.29E+00 9.30E-01 Results 1st Results 2 nd Results 3 rd Results 4 th Weighted Sum 1-W, Sign Radionuclide Radionuclide Radionuclide Radionuclide (WI)

(pCilg) (pCilg) (pCi/g) (pCi/g)

-8.73E-03 6.31E-03 -2.74E-02 -0.03 1.03, +1 2.45E-02 1.48E-02 1.35E-03 0.01 0.99 +1

-1.34E-02 5.63E-03 -7.72E-03 -0.01 1.01 +1 7.86E-03 1.95E-02 -4.15E-04 0.01 0.99 +1 1.34E-03 1.51E-03 -1.48E-02 -0.01 1.01 +1 1 .96E-03 -1.44E-02 -4.84E-03 -0.01 1.01 +1 1 .47E-02 1.82E-02 -8.22E-03 0.00 1.00 +1 3.60E-02 -8.59E-04 5.96E-03 0.01 0.99 +1

-7.70E-03 1.69E-02 9.95E-03 0.02 0.98 +1 1.80E-02 8.53E-03 -2.22E-02 -0.02 1.02 +1

-7.23E-04 -2.87E-03 9.74E-03 0.01 0.99 +1 3.80E-03 -7.47E-03 1.49E-02 0.01 0.99 +1

-6.35E-03 -6.03E-03 4.14E-03 0.00 1.00 +1 1.86E-02 8.82E-04 6.93E-03 0.01 0.99 +1 1.48E-02 2.14E-02 -1.87E-03 0.0.1 0.99 +1 Number of positive differences (S+) 15 Critical Value 11 Survey Unit Meets the Acceptance Criteria Performed by: Davik 4/10/2007 Lf j/

Independent Review by:

Page 1 of I

SPENT FUEL BUILDING (SFB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0002 RELEASE RECORD ATTACHMENT 4D (QC SPLIT RESULTS)

Revision 0

I-lealth Physics Procedure 24265-000-GPP-Ci(,C.iR-R5]24-000-Rev.CY-000 Attachment A Health Physics Procedure 24265-000-GPP-OCiGR-R5 124-000-Rev.CY-000 Attachment A Split Sample Assessment Form Survey Area #: 9312 Survey Unit # 0002 Survey Unit Name: RCA - Spent Fuel Building (S111)

Sample Plan or WPIR#: N/A SMI : 9312-0002-005 Sample

Description:

Comparison of split samples collected from sample measurement location Y5 and analyzed using gamma spectroscopy by off-site Vendor Laboratory. The standard sample was 9312-0002-0051F, the comparison sample was 9312-0002-0051FS.

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

K-40 1.19E+01 0.570 21 0.75- 1.33 1.12E+01 0.505 0.94 Y Comments/Corrective Actions: Cs-137 was not detected in sufficient Table is provided to show acceptance criteria used to quantities in the field split results at location 9312-0002-005F to assess split samples.

evaluate in accordance with procedure. Evaluation using the reported results for K-40 resulted in acceptable agreement between the field- Resolution -A~gnentRange split results at these locations.. Since K-40 was found to be present at an 4-.7 0,5-2.0 8-15 0.6 - 1.66 acceptable level of agreement, no further action is warranted. 16 -50 0.75 - 1.33 51 -200 0.80 - 1.25

>200 0.85- 1.18 P'age I of I

SPENT FUEL BUILDING (SFB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0002 RELEASE RECORD ATTACHMENT 4E (COMPASS POWER CURVE)

Revision 0

DQA Surface Soil Report Assessment Summary Site. 9312 Planner(s): Wojo Survey Unit Name: 9312-0002 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 Zulu_ _

0.9

,I= 0.8 .ZzUluI - _

07

• 11111 _- _

06

&

• 0.5 04

_ - 1 20.3 * - -

-02 _ -II 0.1 - _-_

- 0 mill___ _

0.0 02 0.4 0.6 0.8 10 12 Unity Rule Sum-of Ratios, including background Prospective Power E 1-beta .... Actual Power

- LBGR - - Estimated Power DCGL ---- Retrospective Power COMPASS v0.0.0 4/11/2007 Page1I