ML071730447

Final Status Survey (FSS) Final Report - Phase VII - Chapter 9 of 19 - Appendix A8, Survey Unit Release Record 9312-0006, Primary Auxiliary Building (Pab) (Former Radiologically Controlled Area)

ML071730447
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	05/31/2007
From:	Wojtkowiak D Connecticut Yankee Atomic Power Co
To:	NRC/FSME
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Download: ML071730447 (134)

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Boo 9 of1 Final Status Survey Final Report Phase VII Appendix A8 Survey Unit Release Record 9312-0006, Primary Auxiliary Building (PAB) (Former Radiologically Controlled Area) I May 2007

CYAPCO FINAL STATUS SURVEY RELEASE RECORD PRIMARY AUXILIARY BUILDING (PAB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0006 Prepared B.- Date: 4o010"-7 Reviewed By: Date: I/

FSS Engineer Approved By: T, - . .Date: 1<23 /e2 Te hnical Support Manager Revision 0

PRIMARY AUXILIARY BUILDING (PAB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0006 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. SURV EY RESULTS ........................................................................ 14

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

8. INVESTIGATIONS AND RESULTS .............................................. 21

9. REMEDIATION AND RESULTS .................................................. 21

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

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

12. AN O MA LIE S .................................................................................. 22

13. CO NCLU SIO N ................................................................................ 22

14. A TTA CH M EN TS ............................................................................. 23 14.1 Attachment 1 - Figures (5 pages including cover) 14.2 Attachment 2 - Scan Results (5 pages including cover) 14.3 Attachment 3 - Laboratory Data (86 pages including cover) 14.4 Attachment 4- DQA Results (14 pages including covers)

TOTAL 133 Revision 0

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SURVEY UNIT 9312-0006 RELEASE RECORD SURVEY UNIT DESCRIPTION Survey Unit 9312-0006 (Primary Auxiliary Building) is designated as Final Status Survey (FSS) Class 1 and consists of approximately one thousand seven hundred fifty-four (1,754) square meters of open land and is located approximately one thousand three hundred forty-seven (1,347) feet to the southeast of the site reference coordinate system benchmark used at Haddam Neck Plant (HNP) (see Attachment 1).

The survey unit is bounded as follows: land Survey Unit 9312-0004 to the north (called north as oriented with the north to south flow of the Connecticut River), land Survey Unit 9306-0000 and land Survey Unit 9313-0000 to the west, land Survey Unit 9312-0001 and land Survey Unit 9312-0003 to the south, and land Survey Unit 9312-0005 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 E008 through EO I1 by S065 through S067 (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 9312-0006 consisted of:

a) A review of the IOCFR50.75 (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 "ClassificationBasis 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 9312-0006 RELEASE RECORD During plant operation, Survey Unit 9312-0006 was the location of significant reactor support structures and systems, primarily the Primary Auxiliary Building (PAB). The PAB was a concrete structure designed to house systems containing radioactive materials. The building was designed to contain and control leakage occurring during routine operations as well as unusual conditions. With the exception of various service water, gas and air systems, the majority of the systems within the PAB were radiologically contaminated. The PAB also contained highly contaminated pipe trenches and pump pit areas. The lower level of the PAB under the boron recovery equipment was contaminated due to past spills involving evaporator bottoms.

Contamination levels in several of these systems were high enough to create high radiation areas in their vicinity. Most of the cubicles that contained major systems were posted as "Contaminated Areas" identifying the presence of loose radioactive contamination in these areas. Radiological surveys performed during facility operations indicated substantial levels of beta/gamma and alpha contamination.

Historically, leaks were found at the junction between the steam generator blow down line and the service water discharge line beneath the floor of the PAB drumming room. On at least one occasion, a leak resulted in contamination of the soil beneath the drumming room floor.

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 9312-0006. 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;

" Diaphragm rupture, valve failure and gasket leakage from components associated with the Refueling Water Storage Tank (RWST) resulted in documented spills of radioactive liquid into the alleyway between the Containment structure and the PAB in November 1973, February 1976, December 1976, February 1978 and January 1979.

• A frozen degassifier line in February 1979 caused the rupture of the diaphragm disc and led to leakage of reactor cavity water into the main stack drain and subsequently onto the surrounding area in the PAB alleyway, onto the ground, into the storm drains and subsequently the discharge canal.

• In July of 1979, contaminated water was released onto the stack and surrounding area from the PAB ventilation system. The stack surface was cleaned and painted and the ducts from the blowdown line to the stack were replaced in September 1979.

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SURVEY UNIT 9312-0006 RELEASE RECORD

" A series of events in September 1979 resulted in the release of steam generator contents into the stack. The steam condensed in the stack ductwork and subsequently leaked 50 to 75 gallons of contaminated water onto the alleyway.

Smear surveys indicated contamination levels from 5k to 10k dpm at the perimeter of the leak. Cs-134 and Cs-137 were identified in the water. All of the liquid was removed and the area was decontaminated.

• The degassifier rupture diaphragm actuated in December 1979 and vented gaseous contents up the stack and liquid contents near the base of the stack. The impacted areas and systems were storm sewers, roof drain lines, stack, stack duct and drain lines and the PAB roof. All impacted areas were remediated.

Major demolition and remediation activities began in 2002. All radioactive systems and components located inside the PAB 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 structural concrete of the PAB was then demolished to grade.

Outside of the structure, remediation was performed on the soils surrounding the PAB. A large excavation was created to the north of the Containment that was designated as Excavation #2. This excavation included the area in the vicinity of the Refueling Waster Storage Tank and the Primary Auxiliary Building (PAB) corridor.

A second large excavation, designated as Excavation #1 was located over the PAB footprint. A significant volume of contaminated soil that exhibited direct exposure rates was removed prior to commencing soil sampling for isotopic analysis. Soil samples taken in this area to support remediation continued to exhibit detectable concentrations of Cs-137, Co-60 and Sr-90. The soils in all of these areas were remediated to bedrock and the excavations were backfilled following the performance of radiological assessments. No above grade structures currently reside within Survey Unit 9312-0006.

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.

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.

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SURVEY UNIT 9312-0006 RELEASE RECORD 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: 3.11 OE-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. While Sr-90 was not identified in the soil characterization results, it was decided to include Sr-90 is 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 December 2006 to assess the physical condition of the survey unit, evaluate access points, travel paths and identify potentially hazardous conditions.

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SURVEY UNIT 9312-0006 RELEASE RECORD 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 9312-0006 did not exceed the release criteria specified in the LTP and that the potential dose from residual radioactivity is As Low As Reasonably Achievable (ALARA).

A fundamental precursor to survey design is to establish a relationship between the release criteria and some measurable quantity. This is done through the development of DCGLs. The DCGLs represent average levels of radioactivity above background levels and are presented in terms of surface or mass activity concentrations. Chapter 6 of the LTP describes in detail the modeling used to develop the DCGLs for soil (called Base Case Soil DCGL), existing groundwater radioactivity and future groundwater radioactivity that will be contributed by building basements and footings.

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

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

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SURVEY UNIT 9312-0006 RELEASE RECORD Equation 1 HTotal = H Soil -+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.

Equation2 19 mremryrTotal = 15 mrem/yrsoil + 2 mrerrlyrExisting GW+ 2 mrem/yrFuturcoW 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 9312-0006 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 3.81E+00 2.29E+00 1.52E-01 Ni-63 7.23E+02 4.34E+02 2.89E+01 Sr-90 1.55E+00 9.30E-01 6.20E-02 Nb-94 7.12E+00 4.27E+00 2.85E-01 Tc-99 1.26E+01 7.56E+00 5.04E-01 Ag-108m 7.14E+00 4.28E+00 2.86E-01 Cs- 134 4.67E+00 2.80E+00 1.87E-01 Cs-137 7.91E+00 4.75E+00 3.16E-01 Eu-152 1.01E+O1 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 15) 2.58E+01 1.55E+01 1.03E+00 Pu-241 8.70E+02 5.22E+02 3.48E+O1 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 9312-0006 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 9312-0006 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 surveyý 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 9312-0006 (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 9312-0006 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, four (4) judgmental samples were taken in this survey area. One (1) judgmental location was situated at the northeast comer of the survey unit, one (1) judgmental sample was taken in the southeast comer of the survey unit in the vicinity of the former location of the RWST, one (1) judgmental sample was taken in the southwest comer of the survey unit at the former location of the PAB Drumming Room and one (1) judgmental sample was taken in the northwest comer of the survey unit.

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 I 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.

9312-0006-0OlF 236695.21 668582.76 9312-0006-002F 236695.21 668620.89 9312-0006-003F 236662.19 668563.70 9312-0006-004F 236662.19 668601.83 9312-0006-005F 236662.19 668639.96 9312-0006-006F 236662.19 668678.09 Revision 0 I1I

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SURVEY UNIT 9312-0006 RELEASE RECORD 9312-0006-007F 236629.17 668544.63 9312-0006-008F 236629.17 668582.76 9312-0006-009F 236629.17 668620.89 9312-0006-OIOF 236629.17 668659.02 9312-0006-01 IF 236596.15 668563.70 9312-0006-012F 236596.15 668601.83 9312-0006-013F 236596.15 668639.96 9312-0006-014F 236563.13 668582.76 9312-0006-015F 236563.13 668620.89 9312-0006-016B(1 ) 236716.60 668603.43 9312-0006-017B(l) 236676.30 668657.84 9312-0006-018B(') 236548.47 668611.18 9312-0006-019B(n' 236607.06 668523.70 (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 about 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, "Radionuclides Potentially Present at 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 9312-0006 RELEASE RECORD 2

Survey Unit Land Area 1,754 m Based on AutoCAD-LT Type I and Type 2 errors were 19 0.05, sigma was 0.14 pCi/g, the Number of Measurements (15 systematic grid) LBGR was set at 0.73 to achieve a (4 Judgmental) Relative Shift in the range of 1 and 3

Grid Spacing 38.16 m Based on triangular grid 4.75 pCi/g Cs-137 Administratively set to achieve Operational DCGL 2.29 pCi/g Co-60 fifteen (15) mrem/yr TEDE (')

4.75 pCi/g Cs-137 The Operational DCGL meets the Soil Investigation Level 4.75 pCi/g Cs-630 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 Based upon a Minimum Detectable than the Scan Count Rate (MDCR) of 2,020 cpm Scan Investigation Level MDC(DCGLEMc) and a corresponding MDCsca,, of of 2,810 cpm plus 13.92 pCi/g Cs-137 and 3.23 pCi/g ambient Co-60 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 9312-0006. 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 6,110 counts per minute (cpm) up to 11,500 cpm.

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SURVEY UNIT 9312-0006 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.

Nineteen (19) surface soil samples were collected and packaged in accordance with Haddam Neck Plant (HNP) Procedure RPM 5.1-3, "Collection of Sample Mediafor 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 (9312-0006-001F, 9312-0006-007F and 9312-0006-012F) were randomly selected for HTD radionuclide analysis.

The implementation of survey specific quality control measures included the collection of one (1) sample (9312-0006-013F) for "split sample" analysis.

6. SURVEY RESULTS All field survey activities were conducted between March 7, 2007 and March 8, 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.

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SURVEY UNIT 9312-0006 RELEASE RECORD 1 7.67 10.59 NO 2 7.52 9.54 NO 3 9.19 11.31 NO 4 7.44 10.21 NO 5 6.75 10.82 NO 6 7.03 9.76 NO 7 7.25 10.69 NO 8 6.91 9.64 NO 9 7.55 9.59 NO 10 6.94 8.92 NO 11 8.82 11.16 NO 12 7.79 10.23 NO 13 6.53 10.20 NO 14 10.80 12.39 NO 15 7.69 10.05 NO 16(1) 8.32 10.80 NO 17(l) 6.24 10.08 NO 180) 9.86 11.80 NO 190) 11.20 14.31 NO (1) The action level is based on a measurement in accordance with the FSS plan (MDC(DCGLEMC) of 2,810 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 7, 2007 and March 8, 2007.

Forty-four (44) 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 9312-0006 RELEASE RECORD Table 7 - Scan AearResults 11ighest t 3Actione Scantrips <R edf >levated L~l(1 Reading hinestigaition Redig 2 <pm Identification ()Sample

) (kkpm)

Ilthrul10 11.70 13.71 None None I Ithru 20 8.11 11.59 None None 21 thru 30 8.60 11.10 None None 31 thru 40 9.14 11.79 None None 41 thru 44 9.41 10.39 None None (1) The action level is based on a measurement in accordance with the FSS plan (MDC(DCGLEMC) of 2,810 cpm plus ambient background)

(2) ER is an abbreviation associated with the barcodes used in the field where ER stands for Elevated Reading.

The off-site laboratory employed for the radiological analyses of samples was General Engineering Laboratories, LLC. The laboratory analyzed the fifteen (15) samples collected for non-parametric statistical testing, the associated field splits and the four (4) 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 identified in four (4) 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 slightly lower than 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 is provided in Table 8.

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SURVEY UNIT 9312-0006 RELEASE RECORD 9312-0006-001F 5.86E-03 9312-0006-002F -1.37E-02 9312-0006-003F -2.27E-02 9312-0006-004F 3.19E-02 9312-0006-005F 2.17E-02 9312-0006-006F -2.09E-02 9312-0006-007F 1.87E-02 9312-0006-008F 6.32E-03 9312-0006-009F 2.79E-03 9312-0006-OIOF 8.25E-03 9312-0006-01 IF 2.88E-02 9312-0006-012F 1.64E-02 9312-0006-013F 2.18E-02 9312-0006-014F 1.95E-02 9312-0006-015F 2.65E-02 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 positively identified (i.e., a result greater than two (2) standard deviations uncertainty) in four (4) of the fifteen (15) samples collected for non-parametric statistical testing. The results of the Sr-90 analysis for the statistical sample population are provided below in Table 9.

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SURVEY UNIT 9312-0006 RELEASE RECORD 9312-0006-001F 1.13E-02 9312-0006-002F 1.07E-02 9312-0006-003F 2.66E-03 9312-0006-004F 1.63E-03 9312-0006-005F 1.27E-02 9312-0006-006F 2.26E-02 9312-0006-007F -3.23E-02 9312-0006-008F 3.29E-02 9312-0006-009F 1.24E-02 9312-0006-01OF 1.09E-02 9312-0006-011F 2.95E-02 9312-0006-012F -7.77E-03 9312-0006-013F 2.47E-02 9312-0006-014F 1.11E-02 9312-0006-015F 7.56E-03 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, "Radionuclides Potentially Present at 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.

H-3 was the only HTD other than Sr-90, which by analysis, met the criteria for detection (i.e., a result greater than two standard deviations uncertainty). The highest result for H-3 was at less than 1% of the DCGLOp for H-3. Therefore, H-3 will not be considered in the final dose determination for this survey unit. As previously stated in Section 4 of this report, the criteria for de-selection of a radionuclide is a concentration that is less than 5% of the Operational DCGL for individual radionuclides and less than 10% of the Operational DCGLs for aggregates.

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SURVEY UNIT 9312-0006 RELEASE RECORD The "sum-of-fractions" or "unity rule" is the mathematical test used to evaluate compliance with radiological criteria for license termination when more than one radionuclide has been determined to be potentially present. The combination of the fractions of each detected radionuclide against their respective Operational DCGL must be less than or equal to one (1). The unity rule is:

Equation 3 CI DCG+

C C22 DCL<1 DCGL, DCGL 2 DCGL, Where: Cn = concentration of radionuclide n and DCGLn = DCGL of radionuclide n.

The results of the unity rule calculation for the radionuclides of concern in the statistical sample population for Survey Unit 9312-0006 are provided in Table 10 below.

9312-0006-OO1F 9312-0006-002F 9312-0006-003F -

9312-0006-004F 0.007 0.007 9312-0006-005F -- -

9312-0006-006F - 0.024 0.024 9312-0006-007F - - -

9312-0006-008F - 0.035 0.035 9312-0006-009F - - -

9312-0006-OIOF - - -

9312-0006-OIIF 0.006 0.032 0.038 9312-0006-012F - - -

9312-0006-013F 0.005 0.027 0.031 Revision 0 19

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SURVEY UNIT 9312-0006 RELEASE RECORD I9312-0006-014F I - I- I-9312-0006-01 5F 1 0.006 1 0.006 (1) "-" indicate that the radionuclide was not positively detected in the sample (2) Although listed as a radionuclide of concern, Co-60 was not positively detected in any of the samples comprising the statistical sample population (3) The Operational DCGL from Table 2 is 4.75 pCi/g for Cs-137 and 0.93 pCi/g for Sr-90 to achieve fifteen (15) mrem/yr TEDE respectively.

In addition to the non-parametric statistical sample population, four (4) 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.

The samples are denoted as shown in Table 4, with the sample results shown in Table 11 below.

9312-0006-016-B 1.09E-02 -1.98E-03 -1.33E-02 -0.013 9312-0006-017-B 2.22E-02 -3.50E-03 -1.41E-02 -0.012 9312-0006-018-B 1.07E-01 1.02E-01 3.40E-02 0.104 9312-0006-019-B 0.OOE+00 4.41E-03 2.59E-03 0.005 (1) The Operational DCGL from Table 2 is 4.75 pCi/g for Cs-137, 2.29 pCi/g for Co-60 and 0.93 pCi/g for Sr-90 to achieve fifteen (15) mrem/yr TEDE respectively.

(2) "-" indicate that the radionuclide was not positively detected in the sample

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 ".

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SURVEY UNIT 9312-0006 RELEASE RECORD Cs-137 was not detected in sufficient quantity in the field split results at location 9312-0006-013FS 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 with "clean" fill 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 FinalStatus Survey, " determined that remediation beyond that required to meet the release criteria is unnecessary and that the remaining residual radioactivity in soil was ALARA.

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

11. DATA QUALITY ASSESSMENT (DQA)

The DQO sample design and data were reviewed in accordance with Procedure RPM 5.1-23, "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 13.

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SURVEY UNIT 9312-0006 RELEASE RECORD DCGLop: 4.75E+00 2.29E+00 9.30E-01 Minimum Value: -2.27E-02 -1.77E-02 -3.23E-02 Maximum Value: 3.19E-02 1.86E-02 3.29E-02 Mean: 1.01 E-02 1.94E-03 1.001E-02 Median: 1.64E-02 3.58E-03 1.11E-02 Standard Deviation: 1.74E-02 1.02E-02 1.59E-02 The range of the data, about four (4) standard deviations for Cs-137 and Sr-90, was not a particularly large variation. The data was represented graphically through posting plots, a frequency plot, and a quantile plot. The frequency plot indicates a slight negative skewness as confirmed by the calculated skew of -0.82 for Cs-137 and

- 1.19 for Sr-90.

Co-60, 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 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.

12. ANOMALIES No anomalies were noted.

13. CONCLUSION Survey Unit 9312-0006 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 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 0.21 mrem/yr TEDE based on the average concentration of the samples used for non-parametric statistical sampling.

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SURVEY UNIT 9312-0006 RELEASE RECORD 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 cottribution 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 4.21 mrem/yr TEDE. Therefore, Survey Unit 9312-0006 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 23

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SURVEY UNIT 9312-0006 RELEASE RECORD ATTACHMENT 1 (FIGURES)

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9312- o002 9312-

)005 0001 0004 )001 = Smnple Locationfor Non-pawnehic Testing T010 0004 SWetL&-nd

)009 =Sample Locao fm Judret S-nples 0003

)01.

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-)O11 O1 Notes i)014 0 15 39 ia .re Notes Coordnres = in NAD27COnneot-t sawePlan System Connecticut Yankee Atomic Power Company Sample Location Map for Survey Unit 9312-0006

~0.011 -0.014 9312-9312- 0001

)0.013 0004 '0.011 -sampk LOC.Mon N-oe- V~Mct~

f"r Te--9n 0.002 We(Lvad

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)-0.008 12-03 A1.030 N-te 0.003 'O.011 Fan Notes CeonrLuntes = in NAD27VConetkcut se Pan System Connecticut Yankee Atomic Power Company 9312-0006FinalStatus Survey Design PostingPlot for Sr-90

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SURVEY UNIT 9312-0006 RELEASE RECORD ATTACHMENT 2 (SCAN RESULTS)

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Survey Unit 9312-0006 Scan Survey Results Sample Location Scans Log Date Log Time Reading Alarm Level >Alarm Level Survey Location E-600 SIN Probe SIN Level Level 9312-06-BL-00-01-0 3/7/2007 8:26:00 7.78E+03 1117 1008 9312-06-SL-00-01-0 3/7/2007 8:26:00 7.67E+03 1.06E+04 1117 1008 9312-06-B L-00-02-0 3/7/2007 8:27:00 6.73E+03 1117 1008 9312-06-SL-00-02-0 3/7/2007 8:28:00 7.52E+03 9.54E+03 1117 1008 9312-06-BL-00-03-0 3/7/2007 8:29:00 8.50E+03 1117 1008 9312-06-SL-00-03-0 3/7/2007 8:30:00 9.19E+03 1.13E+04 1117 1008 9312-06-BL-00-04-0 3/7/2007 8:30:00 7.40E+03 1117 1008 9312-06-SL-00-04-0 3/7/2007 8:31:00 7.44E+03 1.02E+04 1117 1008 9312-06-BL-00-05-0 3/7/2007 8:31:00 8.01 E+03 1117 1008 9312-06-S L-00-05-0 3/7/2007 8:33:00 6.75E+03 1.08E+04 1117 1008 9312-06-BL-00-06-0 3/7/2007 8:33:00 6.95E+03 1117 1008 9312-06-SL-00-06-0 3/7/2007 8:34:00 7.03E+03 9.76E+03 1117 1008 9312-06-BL-00-07-0 3/7/2007 8:36:00 7.88E+03 1117 1008 9312-06-S L-00-07-0 3/7/2007 8:37:00 7.25E+03 1.07E+04 1117 1008 9312-06-B L-00-08-0 3/7/2007 8:38:00 6.83E+03 1117 1008 9312-06-S L-00-08-0 3/7/2007 8:39:00 6.91 E+03 9.64E+03 1117 1008 9312-06-BL-00-09-0 3/7/2007 8:40:00 6.78E+03 1117 1008 9312-06-SL-00-09-0 3/7/2007 8:40:00 7.55E+03 9.59E+03 1117 1008 9312-06-BL-00-1 0-0 3/7/2007 10:32:00 6.11 E+03 1117 1008 9312-06-SL-00-1 0-0 3/7/2007 10:34:00 6.94E+03 8.92E+03 1117 1008 9312-06-BL-00-1 1-0 3/7/2007 8:41:00 8.35E+03 1117 1008 9312-06-SL-00-1 1-0 3/7/2007 8:42:00 8.82E+03 1.12E+04 1117 1008 9312-06-BL-00-1 2-0 3/7/2007 8:43:00 7.42E+03 1117 1008 9312-06-SL-00-1 2-0 3/7/2007 8:44:00 7.79E+03 1.02E+04 1117 1008 9312-06-BL-00-13-0 3/7/2007 10:35:00 7.39E+03 1117 1008 9312-06-SL-00-1 3-0 3/7/2007 10:36:00 6.53E+03 1.02E+04 1117 1008 9312-06-BL-00-14-0 3/7/2007 8:45:00 9.58E+03 1117 1008 9312-06-SL-00-14-0 3/7/2007 8:46:00 1.08E+04 1.24E+04 1117 1008 9312-06-BL-00-1 5-0 3/7/2007 10:37:00 7.24E+03 1117 1008 9312-06-SL-00-1 5-0 3/7/2007 10:38:00 7.69E+03 1.01E+04 1117 1008 9312-06-BL-00-1 6-0 3/7/2007 8:49:00 7.99E+03 1117 1008 9312-06-SL-00-1 6-0 3/7/2007 8:51:00 8.32E+03 1.08E+04 1117 1008 9312-06-BL-00-1 7-0 3/7/2007 8:51:00 7.27E+03 1117 1008 9312-06-SL-00-1 7-0 3/7/2007 8:53:00 6.24E+03 1.01 E+04 1117 1008 9312-06-BL-00-1 8-0 3/7/2007 8:47:00 8.99E+03 1117 1008 9312-06-SL-00-1 8-0 3/7/2007 8:48:00 9.86E+03 1.18E+04 1117 1008 9312-06-B L-00-19-0 3/7/2007 8:54:00 1.15E+04 1117 1008 9312-06-SL-00-1 9-0 3/7/2007 8:55:00 1.12E+04 1.43E+04 1117 1008 3/28/2007 1 of 1

Survey Unit 9312-0006 Scan Survey Results Scan Strip Scans Alarm >Alarm Survey Location Log Date Log Time Reading Level Level E-600 SIN Probe SIN 9312-06-BC-00-01-0 3/7/2007 13:54:00 1.0LE+04 1111 1004 9312-06-SC-00-01-0 3/7/2007 13:56:00 9.11E+03 1.28E+04 1111 1004 9312-06-BC-00-02-0 3/7/2007 13:57:00 8.92E+03 1111 1004 9312-06-SC-00-02-0 3/7/2007 13:59:00 1.04E+04 1.17E+041111 1004 9312-06-BC-00-03-0 3/7/2007 14:00:00 1.09E+04 1111 1004 9312-06-SC-00-03-0 3/7/2007 14:01:00 9.26E+03 1.37E+041111 1004 9312-06-BC-00-04-0 3/7/2007 14:02:00 8.76E+03 31111 1004 9312-06-SC-00-04-0 3/7/2007 14:04:00 1.06E+04 1.16E+041111 1004 9312-06-BC-00-05-0 3/7/2007 14:04:00 1.04E+04 1111 1004 9312-06-SC-00-05-0 3/7/2007 14:07:00 9.80E+03 1.32E+041111 1004 9312-06-BC-00-06-0 3/7/2007 14:07:00 9.52E+03 1111 1004 9312-06-SC-00-06-0 3/7/2007 14:10:00 1.17E+04 1.23E+041111 1004 9312-06-BC-00-07-0 3/7/2007 14:10:00 9.81 E+03 1111 1004 9312-06-SC-00-07-0 3/7/2007 14:11:00 9.02E+03 1.26E+04 1111 1004 9312-06-BC-00-08-0 3/7/2007 14:12:00 8.29E+03 1111 1004 9312-06-SC-00-08-0 3/7/2007 14:15:00 1.01E+04 1.11E+04 1111 1004 9312-06-BC-00-09-0 3/7/2007 14:16:00 8.37E+03 1111 1004 9312-06-SC-00-09-0 3/7/2007 14:18:00 8.02E+03 1.12E+04 1111 1004 9312-06-BC-00-10-0 3/7/2007 14:18:00 7.92E+03 1111 1004 9312-06-SC-00-10-0 3/7/2007 14:21:00 9.45E+03 1.07E+04 1111 1004 9312-06-BC-00-11-0 3/7/2007 14:22:00 8.78E+03 1111 1004 9312-06-SC-00-1 1-0 3/7/2007 14:25:00 8.07E+03 1.16E+04 1111 1004 9312-06-BC-00-12-0 3/7/2007 14:27:00 6.88E+03 1111 1004 9312-06-SC-00-1 2-0 3/7/2007 14:31:00 7.94E+03 9.69E+03 1111 1004 9312-06-BC-00-13-0 3/7/2007 14:32:00 7.13E+03 1111 1004 9312-06-SC-00-13-0 3/7/2007 14:35:00 7.00E+03 9.94E+03 1111 1004 9312-06-BC-00-14-0 3/7/2007 14:35:00 6.29E+03 1111 1004 9312-06-SC-00-14-0 3/7/2007 14:38:00 7.74E+03 9.12E+03 1111 1004 9312-06-BC-00-15-0 3/7/2007 14:38:00 7.48E+03 1111 1004 9312-06-SC-00-15-0 3/7/2007 14:42:00 7.77E+03 1.03E+04 1111 1004 9312-06-BC-00-16-0 3/7/2007 14:42:00 7.44E+03 1111 1004 9312-06-SC-00-16-0 3/7/2007 14:45:00 6.26E+03 1.03E+04 1111 1004 9312-06-BC-00-1i7-0 3/8/2007 7:12:00 6.40E+03 1111 1004 9312-06-SC-00-17-0 3/8/2007 7:14:00 7.54E+03 9.21E+03 1111 1004 9312-06-BC-00-18-0 3/8/2007 7:15:00 6.96E+03 1111 1004 9312-06-SC-00-18-0 3/8/2007 7:17:00 7.31E+03 9.77E+03 1111 1004 9312-06-BC-00-19-0 3/8/2007 7:18:00 7.05E+03 1111 1004 9312-06-SC-00-19-0 3/8/2007 7:20:00 7.43E+03 9.86E+03 1111 1004 3/28/2007 1 of 3

Survey Unit 9312-0006 Scan Survey Results Scan Strip Scans Alarm >Alarm Survey Location Log Date Log Time Reading E-600 SIN Probe SIN Level Level 9312-06-BC-00-20-0 3/8/2007 7:21:00 6.75E+03 1111 1004 9312-06-SC-00-20-0 3/8/2007 7:23:00 8.11E+03 9.56E+03 1111 1004 9312-06-BC-00-21-0 3/8/2007 7:24:00 7.78E+03 1111 1004 9312-06-BC-00-21-0 3/8/2007 7:27:00 6.97E+03 1.06E+04 1111 1004 9312-06-BC-00-22-0 3/8/2007 7:28:00 6.86E+03 1111 1004 9312-06-SC-00-22-0 3/8/2007 7:29:00 7.28E+03 9.67E+03 1111 1004 9312-06-BC-00-23-0 3/8/2007 7:30:00 7.21 E+03 1111 1004 9312-06-SC-00-23-0 3/8/2007 7:32:00 6.41 E+03 1.OOE+04 1111 1004 9312-06-BC-00-24-0 3/8/2007 7:32:00 7.44E+03 1111 1004 9312-06-SC-00-24-0 3/8/2007 7:34:00 8.13E+03 1.03E+04 1111 1004 9312-06-BC-00-25-0 3/8/2007 7:34:00 7.61 E+03 1111 1004 9312-06-SC-00-25-0 3/8/2007 7:36:00 6.46E+03 1.04E+04 1111 1004 9312-06-BC-00-26-0 3/8/2007 7:36:00 7.76E+03 1111 1004 9312-06-SC-00-26-0 3/8/2007 7:38:00 8.06E+03 1.06E+04 1111 1004 9312-06-BC-00-27-0 3/8/2007 7:39:00 7.71 E+03 1111 1004 9312-06-SC-00-27-0 3/8/2007 7:40:00 7.27E+03 1.05E+04 1111 1004 9312-06-BC-00-28-0 3/8/2007 7:40:00 6.72E+03 1111 1004 9312-06-SC-00-28-0 3/8/2007 7:42:00 8.60E+03 9.53E+03 1111 1004 9312-06-BC-00-29-0 3/8/2007 7:43:00 8.29E+03 1111 1004 9312-06-SC-00-29-0 3/8/2007 7:45:00 7.13E+03 1.11E+04 1111 1004 9312-06-BC-00-30-0 3/8/2007 7:45:00 7.13E+03 1111 1004 9312-06-SC-00-30-0 3/8/2007 7:47:00 7.38E+03 9.94E+03 1111 1004 9312-06-BC-00-31-0 3/8/2007 7:13:00 8.36E+03 1107 1007 9312-06-SC-00-31-0 3/8/2007 7:15:00 7.76E+03 1.12E+04 1107 1007 9312-06-BC-00-32-0 3/8/2007 7:16:00 7.95E+03 1107 1007 9312-06-SC-00-32-0 3/8/2007 7:18:00 8.46E+03 1.08E+04 1107 1007 9312-06-BC-00-33-0 3/8/2007 7:19:00 8.02E+03 1107 1007 9312-06-SC-00-33-0 3/8/2007 7:22:00 8.40E+03 1.08E+04 1107 1007 9312-06-BC-00-34-0 3/8/2007 7:22:00 8.22E+03 1107 1007 9312-06-SC-00-34-0 3/8/2007 7:25:00 8.61 E+03 1.10E+04 1107 1007 931 2-06-BC-00-35-0 3/8/2007 7:26:00 8.75E+03 1107 1007 9312-06-SC-00-35-0 3/8/2007 7:29:00 9.14E+03 1.16E+04 1107 1007 9312-06-BC-00-36-0 3/8/2007 7:30:00 7.31 E+03 1107 1007 9312-06-SC-00-36-0 3/8/2007 7:32:00 8.89E+03 1.01E+04 1107 1007 9312-06-BC-00-37-0 3/8/2007 7:35:00 8.41E+03 1107 1007 9312-06-SC-00-37-0 3/8/2007 7:38:00 7.45E+03 1.12E+04 1107 1007 9312-06-BC-00-38-0 3/8/2007 7:39:00 7.74E+03 1107 1007 9312-06-S C-00-38-0 3/8/2007 7:44:00 8.48E+03 1.06E+04 1107 1007 9312-06-BC-00-39-0 3/8/2007 7:45:00 8.98E+03 1107 1007 9312-06-SC-00-39-0 3/8/2007 7:48:00 7.93E+03 1.18E+04 1107 1007 3/28/2007 2 of 3

Survey Unit 9312-0006 Scan Survey Results Scan Strip Scans Alarm >Alarm Survey Location Log Date Log Time Reading E-600 SIN Probe SIN Level Level 9312-06-BC-00-40-0 3/8/2007 7:50:00 7.54E+03 1107 1007 9312-06-SC-00-40-0 3/8/2007 7:54:00 7.76E+03 1.04E+04 1107 1007 9312-06-BC-00-41-0 3/8/2007 7:55:00 7.58E+03 1107 1007 9312-06-SC-00-41-0 3/8/2007 7:59:00 7.61 E+03 1.04E+04 1107 1007 9312-06-BC-00-42-0 3/8/2007 8:00:00 7.48E+03 1107 1007 9312-06-SC-00-42-0 3/8/2007 8:02:00 9.41E+03 1.03E+04 1107 1007 9312-06-BC-00-43-0 .3/8/2007 8:03:00 7.29E+03 1107 1007 9312-06-SC-00-43-0 3/8/2007 8:05:00 8.07E+03 1.01E+04 1107 1007 9312-06-BC-00-44-0 3/8/2007 8:05:00 7.21E+03 1107 1007 9312-06-SC-00-44-0 3/8/2007 8:08:00 8.01 E+03 1.OOE+04 1107 1007 3/28/2007 3 of 3

PRIMARY AUXILIARY BUILDING (PAB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0006 RELEASE RECORD ATTACHMENT 3 (LABORATORY DATA)

Revision 0

General Narrative 1

General Narrative for Connecticut Yankee Atomic Power Co.

Work Order: 182052 SDG: MSR#07-00109 March 12, 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 09, 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 182052001 9312-0006-001 F 182052002 9312-0006-002F 182052003 9312-0006-003F 182052004 9312-0006-004F 182052005 9312-0006-005F 182052006 9312-0006-006F 182052007 9312-0006-007F 182052008 9312-0006-008F 182052009 9312-0006-009F 182052010 9312-0006-01 OF 182052011 9312-0006-01 IF 182052012 9312-0006-012F 182052013 9312-0006-013F 182052014 9312-0006-013FS 182052015 9312-0006-014F 182052016 9312-0006-015F 182052017 9312-0006-016B 182052018 9312-0006-017B 182052019 9312-0006-018B 182052020 9312-0006-019B Items of Note There are no items to note.

GEL Laboratories LLc PO Box 30712 Chaileston, SC 29417 2040 Savage Road Charleston, SC 29407 P 843.555.8171 F 843.766.1178 www.gel.corn 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 Seventeen soil samples were analyzed for FSSGAM and Strontium-90. Three soil samples were analyzed for FSSALL.

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

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

Cheryl Jones Project Manager GEL Labonatorles Ln P0 Box 30712 Charleston, SC 29417 2040 Savage Road Charleston, SC 29407 P 843.556.8171 F 843.766.1178 www.get.corn 3

List of current GEL Certifications as of 12 March 2007 State Certification Alaska UST-062 Arizona AZ0668 Arkansas 88-0651 CLIA 42D0904046 California 01151CA Colorado GenEngLabs Connecticut PH-0169 Dept. of Navy NFESC 413 EPA WG-15J Florida/NELAP E87156 Georgia E87156 (FL/NELAP)

Hawaii N/A Idaho N/A Illinois 200029 Indiana C-SC-01 Kansas E-10332 Kentucky 90129 Louisiana 03046 Maryland 1 270 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 1 68-00485 South Carolina J 10120001/10585001/10120002 Tennessee 02934 Texas TX213-2006A Texas NELAP T104704235-06-TX U.S. Dept. of Agriculture S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont VT87156 Virginia 00151 Washington C1641 4

Chain of Custody and Supporting Documentation 5

Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2007-00073 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: E] 30 D. Ei 15 D. Z 7 D.

Other: Cn CA Sample Designation Date Time l14 1" Comment; Preservation Lab Sample ID 9312-0006-OOIF 3/7/07 1134 TS G BP X 9312-0006-002F 3/7/07 1132 TS G BP x 9312-0006-003F 3/7/07 1137 TS G BP X 9312-0006-004F 3/7/07 1135 TS G BP X 9312-0006-005F 3/7/07 1123 TS G BP X 9312-0006-006F 3/7/07 1121 TS G BP X 9312-0006-007F 3/7/07 1140 TS G BP X 9312-0006-008F 3/7/07 1112 TS G BP X 9312-0006-009F 3/7/07 1115 TS G BP X 9312-0006-OIOF 3/7/07 1117 TS G BP X 9312-0006-01 IF 3/7/07 1109 TS G BP X NOTES: PO #: 002332 MSR #: 07-00 109 Z LTP QA E- Radwaste QA 0 Non QA Samples Shipped Via: Internal Container

[] Fed Ex Temp.: i2 Deg.'C El UPS El Hand Cu*tdy Sealed?

(.. N

])Relinquished ' DatefTilne 2) RepeivedBy"- Date/Time Custody SealIntact?

3) Relinquished y * ,=: 3I*10O7 0o' Ul3er1-7 _ 40- . o El00

[ Other

3) Relinquished By Date/Time 4) Peived By Date/Time Bill of Lading #

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

Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2007-00074 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 C Charleston, SC 29407 ATT: Cheryl Jones (843-556-8171)

Priority: [] 30 D. [-] 15 D. 0I 7 D.

Other: V) U[

Sample Designation Date Time - Comment, PreServation Lab Sample ID 9312-0006-012F 3/7/07 1059 TS G BP X 9312-0006-013F 3/7/07 1105 TS G BP X 9312-0006-013FS 3/7/07 1105 TS G BP X ...........

9312-0006-014F 3/7/07 1100 TS G BP X 9312-0006-015F 3/7/07 1041 TS G BP X 9312-0006-016B 3/7/07 1,128 TS G BP X 9312-0006-017B 3/7/07 1125 TS G BP X 9312-0006-018B 3/7/07 1051 TS G BP X 9312-0006-019B 3/7/07 1142 TS G BP X NOTES: PO #: 002332 MSR #: 07-00109 ED LTP QA E] Radwaste QA Li Non QA Samples Shipped Via: Internal Container L Fed Ex Temp.:1 Deg. C El UPS El Hand . dy Sealed?

1)RelinquI he Date/Time 2) Rec vedBy Date/Time Custody Seal Intact?

?-kI*7 * < Li Other

3) Relinquished dy 'Date/Time 4) Re /fedBy - (ate/Time BillofLading_# N Bill of Lading #

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

Connecticut Yankee Statement otfWork for Analyticsd Lab Services ,CY-ISC-SOW-ooI Figure 1. -SampleCheckin List ."

Datertimc Received: _31/I' 7 -)

SDG#:, /A* O O 1! ,

Work OrderNumber:._"__________ ___""

Shipping Cdatainer ID:.5-eei (-EL .L.o Pa Chain of Custodyi# '.v7- 0Q773, 2o07-0* 0 7q I. Custody Seals on'shipping container intact?... -.Yes f/ No ["

2. Custody Seals dated and signed? Yes I.No I I-

3. Chain.-of-Custo-3y record present? . yes [,.N.ot

4. Cooler temperature, C L l " "-

S. Verninculite/packing materials is: Wet [ Dry P S.' Number of samples in shipping container. 2: - " " ."

7. Sample holding times exceeded? - Yes[ Nof4 g8.Samnples have:'

I---hazard labels

. .Desrip todynSeals .(nappropriabe sample labels

9. Samples are:

ingood condition -leaking

-khave air bubbles io s num.ers

° Samle CustodiaLaboratory Date: 3h/*C '

Telephoned to:.O By

I jr SAMPLE RECEIPT & REVIEW FORM PM use only Client: VA4 kK SDIARCOC/Work Order: (1Z2iSZ--7 Date Received: 0, c0(+-

Ci PM(A) Review (ensure non-conforminng ite are resolved priorto signing):

R eceived By:..

Sample Receipt Criteria  ;

• Z Z Comments/Qualifiers (Required for Non-Conforming Items)

>I4 I Shipping containers received Circle Applicable: seals broken damaged container leaking container other (describe) intact and sealed?

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

Record preservation method.

3 Chain of custody documents included with shipment?

4 Sample containers intact and Circle Applicable:, seals broken damaged container leaking container other (describe) sealed? It Sample ID's. containers affected and observed pHl:

5Samples requiring*chemical preservation at proper pH?

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

6 (defined as < 6mm bubble)? ........ _ _

Are Encore containers present?

7 (If yes, immediately deliver to VOA laboratory)

8. Samples received within holding Id's and tests affected:

time? sir Sample ID's on COC match ID's Sample ID's and containers affected:

on bottles? i Date & time on COC match date Sample ID's affected:

10 & time on bottles?1 11 Number of containers received Sample ID's affected:

match number indicated on COC?

in 12 COC form is properly signed 1 relinquished/received sections? 1 14 Air Bill ,Tracking #'s, & 2 -* ' I-7O -0 70e6-.F'-

Additional Comments 790 b'Ir 0 rl"T, 0 " 20

-a ' RSO RAD Receipt # __________

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

A Radiological Classification?- Maximum Counts Observed PCB Regulated?

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

Manager or ESH Manager. UN#:

D Regulated as a Foreign Soil?

PM (or PMA) review of Hazard class ification: Initials f Date:

Data Review Qualifier Definitions 10

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 PO Box 30712 Chadeston, SC 29417 2040 Savage Road Charleston, SC 29407 P843.556.171 F 843.766.1178 www.gel.com 11

RADIOLOGICAL ANAL YS Is 12

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

Work Order 182052 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: 616519 Prep Batch Number: 616148 Dry Soil Prep GL-RAD-A-021 Batch Number: 616146 Sample ID Client ID 182052001 9312-0006-001F 182052007 9312-0006-007F 182052012 9312-0006-012F 1201294131 Method Blank (MB) 1201294132 182052001(9312-0006-001 F) Sample Duplicate (DUP) 1201294133 182052001(9312-0006-001 F) Matrix Spike (MS) 1201294134 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# 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.

11

Quality Control (OC) Information:

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

Designated QC The following sample was used for QC: 182052001 (9312-0006-001F).

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

Technical Information:

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

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

Sample Re-prep/Re-analysis Samples were reprepped due to low/high carrier/tracer yield.

Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from 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 The Am-241 blank result is greater than the MDA, but less than the detection limit.

Qualifier information Manual qualifiers were not required.

Method/Analysis Information 14

Product: Alphaspec Pu, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu-I 1-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 616521 Prep Batch Number: 616148 Dry Soil Prep GL-RAD-A-021 Batch Number: 616146 Sample ID Client ID 182052001 9312-0006-001 F 182052007 9312-0006-007F 182052012 9312-0006-012F 1201294135 Method Blank (MB) 1201294136 182052001(9312-0006-001 F) Sample Duplicate (DUP) 1201294137 182052001(9312-0006-001F) Matrix Spike (MS) 1201294138 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# 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.

Oualitv Control (OC) Information:

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

Designated QC The following sample was used for QC: 182052001 (9312-0006-001 F).

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

1i

Technical Information:

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

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

Sample Re-prep/Re-analysis Samples were reprepped due to low/high carrier/tracer yield.

Miscellaneous Information:

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

Oualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Pu241, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu- 11-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 616524 Prep Batch Number: 616148 Dry Soil Prep GL-RAD-A-021 Batch Number: 616146

Sample ID Client ID 182052001 9312-0006-OOIF 182052007 9312-0006-007F 182052012 9312-0006-012F 1201294139 Method Blank (MB) 1201294140 182052001(9312-0006-O00F) Sample Duplicate (DUP) 1201294141 182052001(9312-0006-OOIF) Matrix Spike (MS) 1201294142 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 (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: 182052001 (9312-0006-001 F).

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 182052007 (9312-0006-007F) was recounted due to a peak shift. Samples were reprepped due to low/high carrier/tracer yield. The batch was recounted due to the quench number being outside the calibration range.

17

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: 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: 616173 Prep Batch Number: 616146 18

Sample ID Client ID 182052001 9312-0006-0O1F 182052002 9312-0006-002F 182052003 9312-0006-003F 182052004 9312-0006-004F 182052005 9312-0006-005F 182052006 9312-0006-006F 182052007 9312-0006-007F 182052008 9312-0006-008F 182052009 9312-0006-009F 182052010 9312-0006-01OF 182052011 9312-0006-01 IF 182052012 9312-0006-012F 182052013 9312-0006-013F 182052014 9312-0006-013FS 182052015 9312-0006-014F 182052016 9312-0006-015F 182052017 9312-0006-016B 182052018 9312-0006-017B 182052019 9312-0006-018B 182052020 9312-0006-019B 1201293220 Method Blank (MB) 1201293221 182052009(9312-0006-009F) Sample Duplicate (DUP) 1201293222 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: 182052009 (9312-0006-009F).

19

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 1201293222 (LCS) was recounted due to low/high recovery.

Miscellaneous Information:

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

Additional Comments The duplicate and the sample, 1201293221 (9312-0006-009F) and 182052009 (9312-0006-009F), did not meet the relative percent difference requirement for Bi-214 and Ra-226, however they do meet the relative error ratio requirement with a value of 2.69633.

Oualifier information Qualifier Reason Analyte Sample U1 Data rejected due to low abundance. Cesium-134 182052003 182052005 182052006 182052008 UI Data rejected due to no valid peak. Cesium- 137 182052020 Method/Analysis Information 20

Product: GFPC, Sr9O, 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: 616272 Prep Batch Number: 616148 Dry Soil Prep GL-RAD-A-021 Batch Number: 616146 Sample ID Client ID 182052001 9312-0006-001 F 182052002 9312-0006-002F 182052003 9312-0006-003F 182052004 9312-0006-004F 182052005 9312-0006-005F 182052006 9312-0006-006F 182052007 9312-0006-007F 182052008 9312-0006-008F 182052009 9312-0006-009F 182052010 9312-0006-01OF 182052011 9312-0006-01 IF 182052012 9312-0006-012F 182052013 9312-0006-013F 182052014 9312-0006-013FS 182052015 9312-0006-014F 182052016 9312-0006-015F 182052017 9312-0006-016B 182052018 9312-0006-017B 182052019 9312-0006-018B 182052020 9312-0006-019B 1201293467 Method Blank (MB) 1201293468 182052008(9312-0006-008F) Sample Duplicate (DUP) 1201293469 182052008(9312-0006-008F) Matrix Spike (MS) 1201293470 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.

Calibration Information:

Calibration Information 2.1

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: 182052008 (9312-0006-008F).

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

Technical Information:

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

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

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

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

Miscellaneous Information:

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

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information 22

Product: Liquid Scint Tc99, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Tc-02-RC Modified Analytical Batch Number: 616197 Sample ID Client ID 182052001 9312-0006-0O1F 182052007 9312-0006-007F 182052012 9312-0006-012F 1201293268 Method Blank (MB) 1201293269 182052001(9312-0006-001F) Sample Duplicate (DUP) 1201293270 182052001(9312-0006-001F) Matrix Spike (MS) 1201293271 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# 13.

Calibration Information:

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

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

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

Quality Control (QC) Information:

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

Designated QC The following sample was used for QC: 182052001 (9312-0006-001F).

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

Technical Information:

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

Preparation Information 23

All preparation criteria have been met for these analyses.

Sample Re-prep/Re-analysis Samples were recounted due to a suspected blank false positive. Samples 1201293268 (MB),

1201293269 (9312-0006-001F), 182052001 (9312-0006-001F), 182052007 (9312-0006-007F) and 182052012 (9312-0006-012F) were recounted due to high MDAs.

Miscellaneous Information:

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

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint 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: 616193 Prep Batch Number: 616148 Dry Soil Prep GL-RAD-A-021 Batch Number: 616146 Sample ID Client ID 182052001 9312-0006-001F 182052007 9312-0006-007F 182052012 9312-0006-012F 1201293256 Method Blank (MB) 1201293257 182052001(9312-0006-001F) Sample Duplicate (DUP) 1201293258 182052001(9312-0006-001F) Matrix Spike (MS) 1201293259 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories 24

LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-040 REV# 3.

Calibration Information:

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

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

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

Quality Control (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: 182052001 (9312-0006-001F).

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

Technical Information:

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

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

Sample Re-prep/Re-analysis 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 25

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: 616195 Prep Batch Number: 616148 Dry Soil Prep GL-RAD-A-021 Batch Number: 616146 Sample ID Client ID 182052001 9312-0006-001 F 182052007 9312-0006-007F 182052012 9312-0006-012F 1201293260 Method Blank (MB) 1201293261 182052001(9312-0006-001F) Sample Duplicate (DUP) 1201293262 182052001(9312-0006-001F) Matrix Spike (MS) 1201293263 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).

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: 182052001 (9312-0006-001F).

26

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: 616201 Sample ID Client ID 182052001 9312-0006-001 F 182052007 9312-0006-007F 182052012 9312-0006-012F 1201293276 Method Blank (MB) 1201293277 182052001(9312-0006-001 F) Sample Duplicate (DUP) 1201293278 182052001(9312-0006-OOIF) Matrix Spike (MS) 1201293279 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories 27

LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-002 REV# 13.

Calibration Information:

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

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

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

Quality Control (OC) Information:

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

Designated QC The following sample was used for QC: 182052001 (9312-0006-001F).

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

Technical Information:

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

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

Sample Re-prep/Re-analysis 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.

Oualifier information Manual qualifiers were not required.

Method/Analysis Information 28

Product: Liquid Scint C14, Solid All,FSS Analytical Method: EPA EERF C-01 Modified Analytical Batch Number: 616202 Sample ID Client ID 182052001 9312-0006-001F 182052007 9312-0006-007F 182052012 9312-0006-012F 1201293280 Method Blank (MB) 1201293281 182052001(9312-0006-001F) Sample Duplicate (DUP) 1201293282 182052001(9312-0006-001F) Matrix Spike (MS) 1201293283 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# 8.

Calibration Information:

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

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

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

Quality Control (OC) Information:

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

Designated QC The following sample was used for QC: 182052001 (9312-0006-001 F).

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.

29

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.

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

Review Validation:

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

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

Reviewer/Date: 4e] "

30

SAMPLE DATA

SUMMARY

31

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

Client SDG: MSR#07-00109 GEL Work Order: 182052 The Qualifiers in this report-are defined as follows:

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

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

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

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

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

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

Reviewed by 32

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-OO1F Project: YANKO 1204 Sample ID: 182052001 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 6.42%

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 0.0471 +/-0.107 0.0651 +/-0.107 0.210 pCi/g BXLI 03/12/07 2339 616519 Curium-242 U 0.00121 +/-0.066 0.0545 +/-0.066 0.191 pCi/g Curium-243/244 U -0.077 +/-0.0792 0.103 +/-0.0799 0.286 pCi/g Aiphaspec Pu, Solid-ALL FSS Plutonium-238 U --0.0466 +/-0.0409 0.078 +/-0.0413 0.261 pCi/g BXLI 03/12/07 2339 616521 Plutonium-239/240 U 0.0513 +/-0.141 0.0923 +/-0.141 0.290 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U -0.715 +/-6.59 5.57 +/-6.59 11.9 pCi/g BXLI 03/15/07 1055 616524 Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.694 +/-0.159 0.0521 +/-0.159 0.104 pCi/g MJHI 03/12/07 1325 616173 Americium-241 U 0.0423 +/-0.0804 0.0709 +/-0.0804 0.142 pCi/g Bismuth-212 0.349 +/-0.215 0.117 +/-0.215 0.234 pCi/g Bismuth-214 0.357 +/-0.0841 0.0292 +/-0.0841 0.0583 pCi/g Cesium-134 U 0.0142 +/-0.019 0.0179 +/-0.019 0.0357 pCi/g Cesium-137 U 0.00586 +/-0.0184 0.0163 +/-0.0184 0.0326 pCi/g Cobalt-60 U 0.00358 +/-0.0191 0.0165 +/-0.0191 .0.033 pCi/g Europium-152 U 0.0459 +/-0.0693 0.0411 +/-0.0693 0.0821 pCi/g Europium-154 U 0.0238 +/-0.0621 0.0548 +/-0.0621 0.109 pCi/g Europium-155 U 0.00111 +/-0.0533 0.0505 +/-0.0533 0.101 pCi/g Lead-212 0.556 +/-0.0669 0.0244 +/-0.0669 0.0487 pCi/g Lead-214 0.492 +/-0.0848 0.0282 +/-0.0848 0.0563 pCi/g Manganese-54 U 0.0173 +/-0.0171 0.0163 +/-0.0171 0.0325 pCi/g Niobium-94 U - 0.00774 +/-0.018 0.0127 +/-0.018 0.0254 pCi/g Potassium-40 9.99 +/-0.968 0.144 +/-0.968 0.287 pCi/g Radium-226 0.357 +/-0.0841 0.0292 +/-0.0841 0.0583 pCi/g Silver-108m U 0.0119 +/-0.0156 0.0147 +/-0.0156 0.0294 pCi/g Thallium-208 0.188 +/-0.0361 0.0147 +/-0.0361 0.0294 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U 0.0113 +/-0.0182 0.0136 +/-0.0182 0.0319 pCi/g KSDI 03/13/07 1253 616272 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi/g Tritium Ii -0.225 +/-1.00 0.852 +/-1.00 1.79 pCi/g AXD2 03/12/07 1642 616201 33

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-001F Proiect: YANK01204 Sample ID: 182052001 Client ID: YANK001 Vol. Recv.:

Parameter (3lualifier 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 0.0071 +/-0.0875 0.0733 +/-0.0875 0.150 pCi/g AXD2 03/13/07 0624 616202 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U 41.1 +/-43.8 27.9 +/-43.9 59.3 pCi/g MXPI 03/14/07 1130 616193 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U 3.86 +/-8.80 7.21 +/-8.80 15.1 pCi/g MXPI 03/13/07 1803 616195 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.0737 +/-0.210 0.175 +/-0.210 0.359 pCi/g MXPI 03/15/07 1653 616197 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Am-05-RC Modified 3 DOE EML HASL-300, Pu-I l-RC Modified 4 DOE EML HASL-300, Pu-I I-RC Modified 5 DOE EML HASL-300, Pu-I I-RC Modified 6 DOE EML HASL-300, Pu- 11-RC Modified 7 DOE EML HASL-300, Pu-I 1-RC Modified 8 EML HASL 300,4.5.2.3 9 EPA 905,0 Modified 10 EPA 906,0 Modified II EPA EERF C-01 Modified 12 DOE RESL Fe-I, Modified 13 DOE RESL Ni-I, Modified 14 DOE EML HASL-300, Tc-02-RC Modified 15 DOE EML HASL-300, Tc-02-RC Modified 16 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Tracer Alphaspec Am241, Cm, Solid ALL 82 (15%-125%)

34

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-001F Project: YAN K01204 Sample ID: 182052001 Client ID: YANK001 Vol. Recv.:

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

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

Plutonium-242 Tracer Liquid Scint Pu241, Solid-ALL FS 82 (25%-125%)

Strontium Carrier GFPC, Sr90, solid-ALL FSS 85 (25%-125%)

Iron-59 Tracer Liquid Scint Fe55, Solid-ALL FS 62 (15%-125%)

Nickel Carrier Liquid Scint Ni63, Solid-ALL FS 92 (25%-125%)

Technetium-99m Tracer Liquid Scint Tc99, Solid-ALL FS 94 (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.

35

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certifie2te of Annalysis eprfirw1gle-filtA-13 Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-002F Proiect: YANK01204 Sample ID: 182052002 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 5.68%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Di Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.526 +/-0.168 0.0596 +/-0.168 0.119 pCi/g MJHI 03/12/07 1324 616173 Americium-241 U -0.0144 +/-0.0914 0.0764 +/-0.0914 0.153 pCi/g Bismuth-212 0.306 +/-0.283 0.132 +/-0.283 0.263 pCi/g Bismuth-214 0.447 +/-0.0803 0.0358 +/-0.0803 0.0715 pCi/g Cesium-I 34 U 0.0196 +/-0.0212 0.0198 +/-0.0212 0.0396 pCi/g Cesium-137 U -0.0137 +/-0.0221 0.0183 +/-0.0221 0.0367 pCi/g Cobalt-60 U -0.0108 +/-0.0202 0.0158 +/-0.0202 0.0315 pCi/g Europium-152 U -0.034 +/-0.0608 0.0475 +/-0.0608 0.0949 pCi/g Europium-154 U 0.0197 +/-0.0649 0.0574 +/-0.0649 0.115 pCi/g Europium-155 U 0.051 +/-0.0554 0.052 +/-0.0554 0.104 pCi/g Lead-212 0.551 +/-0.0698 0.027 +/-0.0698 0.054 pCi/g Lead-214 0.439 +/-0.0912 0.037 +/-0.0912 0.0739 pCi/g Manganese-54 U 0.00177 +/-0.0201 0.0173 +/-0.0201 0.0347 pCi/g Niobium-94 U 0.00844 +/-0.0188 0.017 +/-0.0188 0.0339 pCi/g Potassium-40 8.84 +/-0.999 0.174 +/-0.999 0.347 pCi/g Radium-226 0.447 +/-0.0803 0.0358 +/-0.0803 0.0715 pCi/g Silver-108m U 0.00516 +/-0.0186 0.0164 +/-0.0186 0.0327 pCi/g Thallium-208 0.159 +/-0.041 0.0165 +/-0.041 0.0329 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.0107 +/-0.0178 0.0133 +/-0.0178 0.0313 pCi/g KSDI 03/13/07 1253 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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 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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-002F Proiect: YANK01204 Sample ID: 182052002 Client ID: YANKOOI 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 87 (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.

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-003F Proiect: YANK01204 Sample ID: 182052003 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 7.91%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Rad Gamma Spec Analysis Gammna,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.597 +/-0.204 0.062 +/-0.204 0.124 pCi/g MJHI 03/12/07 1325 616173 Americium-241 U 0.0368 +/-0.116 0.0961 +/-0.116 0.192 pCi/g Bismuth-212 0.432 +/-0.226 0.134 +/-0.226 0.267 pCi/g Bismuth-214 0.555 +/-0.101 0.0335 +/-0.101 0.0669 pCi/g Cesium-134 UI 0.00 +/-0.0368 0.0262 +/-0.0368 0.0525 pCi/g Cesium-137 U -0.0227 +/-0.0243 0.0184 +/-0.0243 0.0368 pCi/g Cobalt-60 U 0.000377 +/-0.0212 0.0178 +/-0.0212 0.0355 pCi/g Europium-152 U -0.0562 +/-0.0715 0.0486 +/-0.0715 0.0971 pCi/g Europium-154 U 0.00557 +/-0.0769 0.0651 +/-0.0769 0.130 pCi/g Europium-155 U 0.0253 +/-0.0653 0.0598 +/-0.0653 0.120 pCi/g Lead-212 0.736 +/-0.082 0.0297 +/-0.082 0.0594 pCi/g Lead-214 0.529 +/-0.0956 0.0354 +/-0.0956 0.0707 pCi/g Manganese-54 U 0.0127 +/-0.0217 0.0198 +/-0.0217 0.0395 pCi/g Niobium-94 U -0.0167 +/-0.0209 0.0164 +/-0.0209 0.0327 pCi/g Potassium-40 12.3 +/-1.19 0.122 +/-1.19 0.245 pCi/g Radium-226 0.555 +/-0.101 0.0335 +/-0.101 0.0669 pCi/g Silver-108m U 0.00183 +/-0.0179 0.0158 +/-0.0179 0.0315 pCi/g Thallium-208 0.243 +/-0.0478 0.0177 +/-0.0478 0.0354 pCi/g Rad Gas Flow Proportional Counting GFPC,S90, solid-ALL FSS Strontium-90 U 0.00266 +/-0.0226 0.0186 +/-0.0226 0.0424 pCi/g KSDI 03/13/07 1253 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-003F Project: YANK01204 Sample ID: 182052003 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Di Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr9O, solid-ALL FSS 83 (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.

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: March 16, 2007

Contact:

Mr: Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-004F Proiect: YANK01204 Sample ID: 182052004 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 7.2%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Rad Gamma Spec Analysis Gammna,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.632 +/-0.151 0.0532 +/-0.151 0.106 pCi/g MJHI 03/12/07 1326 616173 Americium-241 U -0.0586 +/-0.0952 0.0766 +/-0.0952 0.153 pCi/g Bismuth-212 0.480 +/-0.296 0.125 +/-0.296 0.250 pCi/g Bismuth-214 0.450 +/-0.0908 0.0288 +/-0.0908 0.0576 pCi/g Cesium-134 U 0.0246 +/-0.016 0.0192 +/-0.016 0.0384 pCi/g Cesium-137 0.0319 +/-0.0246 0.0158 +/-0.0246 0.0316 pCi/g Cobalt-60 U 0.0186 +/-0.0212 0.0195 +/-0.0212 0.039 pCi/g Europium-152 U -0.00928 +/-0.0595 0.0433 +/-0.0595 0.0865 pCi/g Europium- 154 U 0.0526 +/-0.0642 0.0584 +/-0.0642 0.117 pCi/g Europium-155 U 0.0193 +/-0.0556 0.0515 +/-0.0556 0.103 pCi/g Lead-212 0.558 +/-0.0687 0.026 +/-0.0687 0.052 pCi/g Lead-214 0.464 +/-0.0849 0.0317 +/-0.0849 0.0634 pCi/g Manganese-54 U -0.0175 +/-0.0192 0.0156 +/-0.0192 0.0311 pCi/g Niobium-94 U 0.00866 +/-0.0184 0.0162 +/-0.0184 0.0323 pCi/g Potassium-40 9.99 +/-1.01 0.150 +/-1.01 0.301 pCi/g Radium-226 0.450 +/-0.0908 0.0288 +/-0.0908 0.0576 pCi/g Silver-108m U 0.0091 +/-0.0159 0.0145 +/-0.0159 0.0291 pCi/g Thallium-208 0.213 +/-0.041 0.0164 +/-0.041 0.0329 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U 0.00163 +/-0.0154 0.0127 +/-0.0154 0.0299 pCi/g KSDI 03/13/07 1253 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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 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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-004F Proiect: YANK01204 Sample ID: 182052004 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, Sr9O, solid-ALL FSS 91 (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.

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: March 16, 2007

Contact:

Mv.Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-005F Proiect: YANK01204 Sample ID: 182052005 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 5.55%

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 0.536 +/-0.155 0.0467 +/-0.155 0.0933 pCi/g MJHI 03/12/07 1326 616173 Americium-241 U 0.0457 +/-0.0498 0.052 +/-0.0498 0.104 pCi/g Bismuth-212 0.357 +/-0.239 0.118 +/-0.239 0.235 pCi/g Bismuth-214 0.355 +/-0.0727 0.0304 +/-0.0727 0.0608 pCi/g Cesium-134 UI 0.00 +/-0.0226 0.0185 +/-0.0226 0.0371 pCi/g Cesium-137 U 0.0217 +/-0.0381 0.0158 +/-0.0381 0.0316 pCi/g Cobalt-60 U -0.00529 +/-0.0191 0.0154 +/-0.0191 0.0309 pCi/g Europium-152 U -0.00908 +/-0.0602 0.0405 +/-0.0602 0.0809 pCi/g Europium-154 U 0.00964 +/-0.0593 0.0509 +/-0.0593 0.102 pCi/g Europium-155 U 0.00916 +/-0.0472 0.0435 +/-0.0472 0.087 pCi/g Lead-212 0.499 +/-0.0601 0.0217 +/-0.0601 0.0434 pCi/g Lead-214 0.425 +/-0.0803 0.030 +/-0.0803 0.0599 pCi/g Manganese-54 U 0.0044 +/-0.0188 0.0167 +/-0.0188 0.0335 pCi/g Niobium-94 U -0.00488 +/-0.0166 0.0138 +/-0.0166 0.0276 pCi/g Potassium-40 9.68 +/-0.906 0.124 +/-0.906 0.248 pCi/g Radium-226 0.355 +/-0.0727 0.0304 +/-0.0727 0.0608 pCi/g Silver-108m U -0.00655 +/-0.0164 0.0141 +/-0.0164 0.0281 pCi/g Thallium-208 0.184 +/-0.0364 0.0148 +/-0.0364 0.0296 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.0127 +/-0.023 0.0179 +/-0.023 0.0404 pCi/g KSDI 03/13/07 1316 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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 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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-005F Proiect: YANK01204 Sample ID: 182052005 Client ID:

Vol. Recv.: YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr9O, 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.

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-006F Project: YANK01204 Sample ID: 182052006 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 7.47%

Parameter. Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Di Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.496 +/-0.161 0.0624 +/-0.161 0.125 pCi/g MJHI 03/12/07 1327 616173 Americium-241 U 0.0943 +/-0.0989 0.0652 +/-0.0989 0.130 pCi/g Bismuth-212 0.484 +/-0.230 0.126 +/-0.230 0.252 pCi/g Bismuth-214 0.453 +/-0.0811 0.0314 +/-0.081 I 0.0627 pCi/g Cesium-134 UI 0.00 +/-0.0363 0.0212 +/-0.0363 0.0424 pCi/g Cesium-137 U -0.0209 +/-0.0225 0.0173 +/-0.0225 0.0346 pCi/g Cobalt-60 U 0.012 +/-0.0198 0.0181 +/-0.0198 0.0362 pCi/g Europium-152 U -0.0072 +/-0.0607 0.0425 +/-0.0607 0.085 pCi/g Europium-154 U -0.0217 +/-0.0641 0.0488 +/-0.0641 0.0975 pCi/g Europium-155 U -0.0217 +/-0.0521 0.0485 +/-0.0521 0.0969 pCi/g Lead-212 0.529 +/-0.0649 0.0245 +/-0.0649 0.049 pCi/g Lead-214 0.467 +/-0.0949 0.0339 +/-0.0949 0.0678 pCi/g Manganese-54 U -0.00993 +/-0.0335 0.0152 +/-0.0335 0.0304 pCi/g Niobium-94 U 0.0124 +/-0.0171 0.0157 +/-0.0171 0.0314 pCi/g Potassium-40 8.91 +/-0.982 0.153 +/-0.982 0.306 pCi/g Radium-226 0.453 +/-0.0811 0.0314 +/-0.0811 0.0627 pCi/g Silver-108m U 0.000398 +/-0.0155 0.0133 +/-0.0155 0.0265 pCi/g Thallium-208 0.168 +/-0.0439 0.0148 +/-0.0439 0.0297 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.0226 +/-0.0204 0.0141 +/-0.0204 0.0328 pCi/g KSDI 03/13/07 1253 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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 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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-006F Project: YANK01204 Sample ID: 182052006 Client Vol. Recv.: YANK001 ID:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Dt Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 85 (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.

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-007F Proiect: YANK01204 Sample ID: 182052007 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 4.91%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1" Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U 0.116 +/-0.166 0.0906 +/-0.167 0.278 pCi/g BXLI 03/12/07 2339 616519 Curium-242 U 0.0381 +/-0.107 0.0657 +/-0.107 0.231 pCi/g Curium-243/244 U -0.0314 +/-0.115 0.111 +/-0.115 0.319 pCi/g AIphaspec Pu, Solid-ALL FSS Plutonium-238 U 0.0546 +/-0.187 0.142 +/-0.187 0.368 pCi/g BXLI 03/12/07 2339 616521 Plutonium-239/240 U 0.0793 +/-0.127 0.0681 +/-0.127 0.220 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U -3.54 +/-5.94 5.20 +/-5.94 11.1 pCi/g BXLI 03/15/07 1111 616524 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.589 +/-0.146 0.0623 +/-0.146 0.125 pCi/g MJHI 03/12/07 1327 616173 Americium-241 U 0.0556 +/-0.0352 0.0319 +/-0.0352 0.0638 pCi/g Bismuth-212 0.354 +/-0.302 0.168 +/-0.302 0.335 pCi/g Bismuth-214 0.516 +/-0.104 0.0376 +/-0.104 0.0752 pCi/g Cesium-134 U 0.0145 +/-0.0303 0.0243 +/-0.0303 0.0486 pCi/g Cesium- 137 U 0.0187 +/-0.0258 0.0236 +/-0.0258 0.0471 pCi/g Cobalt-60 U 0.00986 +/-0.0243 0.0217 +/-0.0243 0.0433 pCi/g Europium-152 U -0.0115 +/-0.0745 0.0506 +/-0.0745 0.101 pCi/g Europium-154 U -0.00871 +/-0.0788 0.0659 +/-0.0788 0.132 pCi/g Europium- 155 U 0.0911 +/-0.0754 0.0475 +/-0.0754 0.0949 pCi/g Lead-212 0.623 +/-0.086 0.0265 +/-0.086 0.053 pCi/g Lead-214 0.552 +/-0.105 0.0367 +/-0.105 0.0734 pCi/g Manganese-54 U 0.00202 +/-0.0229 0.0204 +/-0.0229 0.0407 pCi/g Niobium-94 U -0.008 +/-0.0209 0.0172 +/-0.0209 0.0344 pCi/g Potassium-40 10.9 +/-1.11 0.164 +/-1.11 0.329 pCi/g Radium-226 0.516 +/-0.104 0.0376 +/-0.104 0.0752 pCi/g Silver-108m U -0.00215 +/-0.0191 0.0169 +/-0.0191 0.0338 pCi/g Thallium-208 0.133 +/-0.0521 0.0187 +/-0.0521 0.0373 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U -0.0323 +/-0.0163 0.0185 +/-0.0163 0.0423 pCi/g KSDI 03/13/07 1254 616272 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi/g Tritium U -0.376 +/-1.01 0.868 +/-1.01 1.82 pCi/g AXD2 03/12/07 1743 616201

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-007F Proiect: YANK01204 Sample ID: 182052007 Client ID: YANK001 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 0.0223 +/-0.0892 0.0744 +/-0.0892 0.152 pCi/g AXD2 03/13/07 0727 616202 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U 25.6 +/-42.7 27.5 +/-42.8 58.3 pCi/g MXPI 03/14/07 1146 616193 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -6.5 +/-7.85 6.89 +/-7.85 14.5 pCi/g MXPI 03/13/07 1819 616195 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.0883 +/-0.222 0.184 +/-0.222 0.379 pCi/g MXPI 03/15/07 1724 616197 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Am-05-RC Modified 3 DOE EML HASL-300, Pu-I 1-RC Modified 4 DOE EML HASL-300, Pu-I I-RC Modified 5 DOE EML HASL-300, Pu-I I-RC Modified 6 DOE EML HASL-300, Pu-I I-RC Modified 7 DOE EML HASL-300, Pu-I I-RC Modified 8 EML HASL 300, 4.5.2.3 9 EPA 905.0 Modified 10 EPA 906.0 Modified 11 EPA EERF C-01 Modified 12 DOE RESL Fe-I, Modified 13 DOE RESL Ni-l, Modified 14 DOE EML HASL-300, Tc-02-RC Modified 15 DOE EML HASL-300, Tc-02-RC Modified 16 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Tracer Alphaspec Am241, Cm, Solid ALL 76 (15%-125%)

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-007F Project: YANK01204 Sample ID: 182052007 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Di Plutonium-242 Tracer Alphaspec Pu, Solid-ALL FSS 89 (15%-125%)

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

Strontium Carrier GFPC, Sr90, solid-ALL FSS 78 (25%-125%)

Iron-59 Tracer Liquid Scint Fe55, Solid-ALL FS 70 (15%-125%)

Nickel Carrier Liquid Scint Ni63, Solid-ALL FS 96 (25%-125%)

Technetium-99m Tracer Liquid Scint Tc99, Solid-ALL FS 89 (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.

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: March 16, 2007

Contact:

• Mr.Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-008F Proiect: YANK01204 Sample ID: 182052008 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 4.69%

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 0.495 +/-0.132 0.0482 +/-0.132 0.0964 pCi/g MJHI 03/12/07 1328 616173 Americium-241 U 0.00795 +/-0.0606 0.0521 +/-0.0606 0.104 pCi/g Bismuth-212 0.368 +/-0.253 0.107 +/-0.253 0.213 pCi/g Bismuth-214 0.417 +/-0.0766 0.0276 +/-0.0766 0.0551 pCi/g Cesium-134 UI 0.00 +/-0.0235 0.0176 +/-0.0235 0.0351 pCi/g Cesium-137 U 0.00632 +/-0.0179 0.0159 +/-0.0179 0.0318 pCi/g Cobalt-60 U -0.0177 +/-0.018 0.0134 +/-0.018 0.0267 pCi/g Europium-152 U 0.0172 +/-0.0538 0.0386 +/-0.0538 0.0772 pCi/g Europium-154 U-0.000819 +/-0.0496 0.042 +/-0.0496 0.0839 pCi/g Europium-155 U 0.0583 +/-0.0475 0.0463 +/-0.0475 0.0925 pCi/g Lead-212 0.545 +/-0.0599 0.0209 +/-0.0599 0.0418 pCi/g Lead-214 0.480 +/-0.0741 0.0264 +/-0.0741 0.0528 pCi/g Manganese-54 U 0.0124 +/-0.0161 0.015 +/-0.0161 0.030 pCi/g Niobium-94 U -0.00742 +/-0.016 0.0132 +/-0.016 0.0264 pCi/g Potassium-40 10.5 +/-0.946 0.0981 +/-0.946 0.196 pCi/g Radium-226 0.417 +/-0.0766 0.0276 +/-0.0766 0.0551 pCi/g Silver-108m U -0.00243 +/-0.0147 0.0131 +/-0.0147 0.0261 pCi/g Thallium-208 0.152 +/-0.0371 0.0146 +/-0.0371 0.0292 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.0329 +/-0.0257 0.0175 +/-0.0257 0.0403 pCi/g KSDI 03/13/07 1254 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-008F Project: YANK01204 Sample ID: 182052008 Client ID: YANKOO 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 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.

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-009F Project: YANKO01204 Sample ID: 182052009 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: .242%

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 0.645 +/-0.113 0.0315 +/-0.113 0.0629 pCi/g MJHI 03/12/07 1330 616173 Americium-241 U 0.0231 +/-0.0654 0.0564 +/-0.0654 0.113 pCi/g Bismuth-212 0.408 +/-0.167 0.0653 +/-0.167 0.131 pCi/g Bismuth-214 0.390 +/-0.0599 0.0182 +/-0.0599 0.0365 pCi/g Cesium-] 34 U 0.0173 +/-0.0196 0.0114 +/-0.0196 0.0228 pCi/g Cesium-137 U 0.00279 +/-0.0126 0.0095 +/-0.0126 0.019 pCi/g Cobalt-60 U -0.00377 +/-0.0112 0.00948 +/-0.0112 0.019 pCi/g Europium-152 U -0.00585 +/-0.0323 0.0244 +/-0.0323 0.0489 pCi/g Europium-154 U 0.00207 +/-0.0381 0.0285 +/-0.0381 0.0569 pCi/g Europium-155 U 0.0141 +/-0.0355 0.0326 +/-0.0355 0.0651 pCi/g Lead-212 0.584 +/-0.0558 0.0146 +/-0.0558 0.0292 pCi/g Lead-214 0.505 +/-0.0595 0.018 +/-0.0595 0.036 pCi/g Manganese-54 U 0.0152 +/-0.013 0.00833 +/-0.013 0.0167 pCi/g Niobium-94 U-0.000354 +/-0.00983 0.0084 +/-0.00983 0.0168 pCi/g Potassium-40 11.0 +/-0.785 0.0864 +/-0.785 0.173 pCi/g Radium-226 0.390 +/-0.0599 0.0182 +/-0.0599 0.0365 pCi/g Silver-108m U -0.00639 +/-0.00999 0.00755 +/-0.00999 0.0151 pCi/g Thallium-208 0.177 +/-0.0295 0.00824 +/-0.0295 0.0165 pCi/g Rad Gas Flow Proportional Counting GFPC,SO9O, solid-ALL FSS Strontium-90 U 0.0124 +/-0.0206 0.0158 +/-0.0206 0.0359 pCi/g KSDI 03/13/07 1317 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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 51

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-009F Project: YANK01204 Sample ID: 182052009 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Dt Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 85 (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 Aknalvsis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-01 OF Proiect: YANK01204 Sample ID: 182052010 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 4.51%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 11 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.538 +/-0.136 0.050 +/-0.136 0.100 pCi/g MJHI 03/12/07 1330 616173 Americium-241 U -0.0621 +/-0.0745 0.0611 +/-0.0745 0.122 pCi/g Bismuth-212 0.366 +/-0.219 0.111 +/-0.219 0.222 pCi/g Bismuth-214 0.421 +/-0.0854 0.0263 +/-0.0854 0.0525 pCi/g Cesium-134 U 0.0319 +/-0.0252 0.0183 +/-0.0252 0.0366 pCi/g Cesium-I 37 U 0.00825 +/-0.0188 0.0154 +/-0.0188 0.0308 pCi/g Cobalt-60 U -0.0107 +/-0.0181 0.0144 +/-0.0181 0.0287 pCi/g Europium-152 U -0.0392 +/-0.0604 0.0396 +/-0.0604 0.0792 pCi/g Europium-154 U -0.0316 +/-0.0573 0.0465 +/-0.0573 0.093 pCi/g Europium-155 U -0.0311 +/-0.0493 0.044 +/-0.0493 0.0879 pCi/g Lead-212 0.554 +/-0.0643 0.0227 +/-0.0643 0.0454 pCi/g Lead-214 0.413 +/-0.0741 0.0286 +/-0.0741 0.0572 pCi/g Manganese-54 U 0.0177 +/-0.0172 0.0159 +/-0.0172 0.0318 pCi/g Niobium-94 U 0.00419 +/-0.0186 0.0143 +/-0.0186 0.0285 pCi/g Potassium-40 9.13 +/-0.888 0.131 +/-0.888 0.262 pCi/g Radium-226 0.421 +/-0.0854 0.0263 +/-0.0854 0.0525 pCi/g Silver-108m U 0.0103 +/-0.0147 0.0138 +/-0.0147 0.0277 pCi/g Thallium-208 0.164 +/-0.0334 0.0152 +/-0.0334 0.0304 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.0109 +/-0.0207 0.016 +/-0.0207 0.0367 pCi/g KSDI 03/13/07 1254 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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 53

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-OIOF Proiect: YANK01204 Sample ID: 182052010 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 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.

54

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-011F Proiect: YANK01204 Sample ID: 182052011 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 5.99%

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

Rad Gamma Spec Analysis Gammna, Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.827 +/-0.182 0.0526 +/-0.182 0.105 pCi/g MJHI 03/12/07 1331 616173 Americium-241 U -0.017 +/-0.0605 0.0511 +/-0.0605 0.102 pCi/g Bismuth-212 0.570 +/-0.442 0.125 +/-0.442 0.251 pCi/g Bismuth-214 0.505 +/-0.0878 0.0326 +/-0.0878 0.0651 pCi/g Cesium-134 U 0.0402 +/-0.0238 0.0218 +/-0.0238 0.0437 pCi/g Cesium-137 U 0.0288 +/-0.0236 0.0194 +/-0.0236 0.0389 pCi/g Cobalt-60 U 0.00696 +/-0.0168 0.0149 +/-0.0168 0.0298 pCi/g Europium-152 U -0.0191 +/-0.0608 0.0473 +/-0.0608 0.0946 pCi/g Europium-154 U -0.0148 +/-0.0548 0.0452 +/-0.0548 0.0904 pCi/g Europium-155 U -0.00722 +/-0.0523 0.0489 +/-0.0523 0.0978 pCi/g Lead-212 0.760 +/-0.0782 0.024 +/-0.0782 0.048 pCi/g Lead-214 0.581 +/-0.089 0.0345 +/-0.089 0.0689 pCi/g Manganese-54 U 0.024 +/-0.0186 0.0177 +/-0.0186 0.0355 pCi/g Niobium-94 U 0.00261 +/-0.0183 0.0159 +/-0.0183 0.0318 pCi/g Potassium-40 11.9 +/-1.03 0.137 +/-1.03 0.273 pCi/g Radium-226 0.505 +/-0.0878 0.0326 +/-0.0878 0.0651 pCi/g Silver-108m U -0.0208 +/-0.0203 0.0152 +/-0.0203 0.0304 pCi/g Thallium-208 0.195 +/-0.044 0.0155 +/-0.044 0.031 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.0295 +/-0.0218 0.0141 +/-0.0218 0.0333 pCi/g KSDI 03/13/07 1254 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 The following Analytical Methods were performed Method Description 1 EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified 55

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-01 IF Project: YANK01204 Sample ID: 182052011 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.

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-012F Proiect: YANK01204 Sample ID: 182052012 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 4.17%

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 --0.0426 +/-0.0596 0.0366 +/-0.0597 0.151 pCi/g BXL1 03/12/07 2339 616519 Curium-242 U 0.0295 +/-0.0579 0.00 +/-0.058 0.0801 pCi/g Curium-243/244 U 0.00115 +/-0.0626 0.0517 +/-0.0626 0.181 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 U --0.0316 +/-0.0916 0.0912 +/-0.0917 0.259 pCi/g BXLI 03/12/07 2339 616521 Plutonium-239/240 I1 0.0226 +/-0.0836 0.0566 +/-0.0836 0.190 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U -3.12 +/-5.58 4.87 +/-5.58 10.4 pCi/g BXLI 03/15/07 1127 616524 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.432 +/-0.238 0.106 +/-0.238 0.211 pCi/g MJHI 03/12/07 1332 616173 Americium-241 U 0.018 +/-0.0419 0.0347 +/-0.0419 0.0693 pCi/g Bismuth-212 0.571 +/-0.366 0.194 +/-0.366 0.389 pCi/g Bismuth-214 0.533 +/-0.150 0.0453 +/-0.150 0.0905 pCi/g Cesium- 134 U 0.0223 +/-0.0335 0.0314 +/-0.0335 0.0627 pCi/g Cesium-137 U 0.0164 +/-0.0341 0.0314 +/-0.0341 0.0628 pCi/g Cobalt-60 U-0.000875 +/-0.0348 0.029 +/-0.0348 0.058 pCi/g Europium-152 U 0.0247 +/-0.0851 0.0637 +/-0.0851 0.127 pCi/g Europium-154 U -0.0524 +/-0.124 0.0802 +/-0.124 0.160 pCi/g Europium-155 U 0.0132 +/-0.0622 0.0563 +/-0.0622 0.113 pCi/g Lead-212 0.471 +/-0.105 0.0397 +/-0.105 0.0793 pCi/g Lead-214 0.548 +/-0.106 0.0449 +/-0.106 0.0897 pCi/g Manganese-54 U 0.00336 +/-0.0318 0.028 +/-0.0318 0.0559 pCi/g Niobium-94 U 0.00974 +/-0.0307 0.026 +/-0.0307 0.052 pCi/g Potassium-40 9.12 +/-1.25 0.282 +/-1.25 0.564 pCi/g Radium-226 0.533 +/-0.150 0.0453 +/-0.150 0.0905 pCi/g Silver-108m U -0.0118 +/-0.025 0.0209 +/-0.025 0.0417 pCi/g Thallium-208 0.183 +/-0.0517 0.0226 +/-0.0517 0.0451 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U -0.00777 +/-0.0225 0.0199 +/-0.0225 0.0457 pCi/g KSDI 03/13/07 1254 616272 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi/g Tritium U 1.10 +/-1.09 0.869 +/-1.09 1.82 pCi/g AXD2 03/12/07 1845 616201

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Certificateof A alvsis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: March 16, 2007

Contact:

Mr.: Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-012F Project: YANK01204 Sample ID: 182052012 Client ID: YANK001 Vol. Recv.:

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

Rad Liquid Scintillation Analysis Liquid Scint C14, Solid All, FSS Carbon-14 U 0.0523 +/-0.0859 0.071 +/-0.0859 0.145 pCi/g AXD2 03/13/07 0829 616202 Liquid Scint Fe55, Solid-ALL FSS Iron-55 54.8 +/-41.3 25.7 +/-41.5 54.4 pCi/g MXPI 03/14/07 1202 616193 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -4.39 +/-8.40 7.25 +/-8.40 15.2 pCi/g MXPI 03/13/07 1835 616195 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.148 +/-0.222 0.183 +/-0.222 0.376 pCi/g MXPI 03/15/07 1756 616197 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Am-05-RC Modified 3 DOE EML HASL-300, Pu-I 1-RC Modified 4 DOE EML HASL-300, Pu-I -RC Modified 5 DOE EML HASL-300, Pu-I I-RC Modified 6 DOE EML HASL-300, Pu-I -RC Modified 7 DOE EML HASL-300, Pu-I I-RC Modified 8 EML HASL 300, 4.5.2.3 9 EPA 905.0 Modified 10 EPA 906.0 Modified 11 EPA EERF C-01 Modified 12 DOE RESL Fe-I, Modified 13 DOE RESL Ni-I, Modified 14 DOE EML HASL-300, Tc-02-RC Modified 15 DOE EML HASL-300, Tc-02-RC Modified 16 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Tracer Alphaspec Am241, Cm, Solid ALL 94 (15%-125%)

5F

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-012F Proiect: YANK01204 Sample ID: 182052012 Client ID: YANKOOI Vol. Recv.:

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

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

Plutonium-242 Tracer Liquid Scint Pu241, Solid-ALL FS 95 (25%-125%)

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

Iron-59 Tracer Liquid Scint Fe55, Solid-ALL FS 72 (15%-125%)

Nickel Carrier Liquid Scint Ni63, Solid-ALL FS 93 (25%-125%)

Technetium-99m Tracer Liquid Scint Tc99, Solid-ALL FS 90 (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.

59

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-013F Project: YANK01204 Sample ID: 182052013 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 7.15%

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 0.619 +/-0.146 0.0467 +/-0.146 0.0933 pCi/g MJHI 03/12/07 1332 616173 Americium-241 U 0.0639 +/-0.0654 0.0545 +/-0.0654 0.109 pCi/g Bismuth-212 0.433 +/-0.178 0.0923 +/-0.178 0.185 pCi/g Bismuth-214 0.464 +/-0.0759 0.0267 +/-0.0759 0.0533 pCi/g Cesium-134 U 0.0141 +/-0.0177 0.0157 +/-0.0177 0.0313 pCi/g Cesium-137 U 0.0218 +/-0.0217 0.0129 +/-0.0217 0.0258 pCi/g Cobalt-60 U 0.0123 +/-0.0166 0.015 +/-0.0166 0.030 pCi/g Europium-152 U 0.0233 +/-0.0724 0.0385 +/-0.0724 0.0769 pCi/g Europium-154 U -0.0308 +/-0.0515 0.0423 +/-0.0515 0.0845 pCi/g Europium-155 U 0.014 +/-0.0469 0.0438 +/-0.0469 0.0876 pCi/g Lead-212 0.582 +/-0.0624 0.0216 +/-0.0624 0.0432 pCi/g Lead-214 0.492 +/-0.0784 0.0252 +/-0.0784 0.0503 pCi/g Manganese-54 U -0.00639 +/-0.0167 0.0135 +/-0.0167 0.0269 pCi/g Niobium-94 U 0.00635 +/-0.0142 0.0125 +/-0.0142 0.025 pCi/g Potassium-40 11.0 +/-0.955 0.116 +/-0.955 0.232 pCi/g Radium-226 0.464 +/-0.0759 0.0267 +/-0.0759 0.0533 pCi/g Silver-108m U 0.00305 +/-0.0139 0.0121 +/-0.0139 0.0242 pCi/g Thallium-208 0.190 +/-0.0361 0.0131 +/-0.0361 0.0262 pCi/g Rad Gas Flow Proportional Counting GFPC,SO9O, solid-ALL FSS Strontium-90 U 0.0247 +/-0.024 0.0168 +/-0.024 0.0392 pCi/g KSDI 03/13/07 1254 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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 6; (

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-013F Project: YANK01204 Sample ID: 182052013 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 74 (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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-013FS Proiect: YANK01204 Sample ID: 182052014 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 6.82%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch DI Rad Gamma Spec Analysis Gammna,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.579 +/-0.141 0.0589 +/-0.141 0.118 pCi/g MJHI 03/12/07 1709 616173 Americium-241 U -0.0068 +/-0.124 0.102 +/-0.124 0.204 pCi/g Bismuth-212 U 0.258 +/-0.287 0.133 +/-0.287 0.265 pCi/g Bismuth-214 0.470 +/-0.0946 0.0307 +/-0.0946 0.0614 pCi/g Cesium-134 U 0.0292 +/-0.0239 0.0228 +/-0.0239 0.0455 pCi/g Cesium-137 U 0.013 +/-0.0228 0.0203 +/-0.0228 0.0405 pCi/g Cobalt-60 U 0.0131 +/-0.0217 0.0195 +/-0.0217 0.0391 pCi/g Europium-152 U -0.0567 +/-0.0675 0.0458 +/-0.0675 0.0915 pCi/g Europium-154 U 0.0198 +/-0.0677 0.0589 +/-0.0677 0.118 pCi/g Europium-155 U 0.0765 +/-0.0644 0.0611 +/-0.0644 0.122 pCi/g Lead-212 0.586 +/-0.0713 0.0283 +/-0.0713 0.0565 pCi/g Lead-214 0.527 +/-0.097 0.0349 +/-0.097 0.0697 pCi/g Manganese-54 U -0.00531 +/-0.0231 0.0169 +/-0.0231 0.0338 pCi/g Niobium-94 U 0.0112 +/-0.0198 0.0175 +/-0.0198 0.0351 pCi/g Potassium-40 10.2 +/-1.12 0.134 +/-1.12 0.269 pCi/g Radium-226 0.470 +/-0.0946 0.0307 +/-0.0946 0.0614 pCi/g Silver-108m U -0.00924 +/-0.0183 0.0156 +/-0.0183 0.0311 pCi/g Thallium-208 0.199 +/-0.0402 0.0157 +/-0.0402 0.0314 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U2.570E-05 +/-0.0161 0.0135 +/-0.0161 0.0316 pCi/g KSDI 03/13/07 1254 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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 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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-013FS Project: YANK01204 Sample ID: 182052014 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 85 (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.

63

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-014F Proiect: YANKO 1204 Sample ID: 182052015 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 2.71%

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 0.963 +/-0.227 0.070 +/-0.227 0.140 pCi/g MJHI 03/12/07 1709 616173 Americium-241 U 0.0728 +/-0.113 0.0953 +/-0.113 0.191 pCi/g Bismuth-212 0.697 +/-0.347 0.149 +/-0.347 0.298 pCi/g Bismuth-214 0.913 +/-0.136 0.0389 +/-0.136 0.0778 pCi/g Cesium-] 34 U 0.0343 +/-0.0288 0.0251 +/-0.0288 0.0502 pCi/g Cesium-137 U 0.0195 +/-0.024 0.0208 +/-0.024 0.0416 pCi/g Cobalt-60 U 0.00932 +/-0.0282 0.0244 +/-0.0282 0.0487 pCi/g Europium-152 U 0.0413 +/-0.0804 0.0571 +/-0.0804 0.114 pCi/g Europium-154 U -0.00118 +/-0.0784 0.0658 +/-0.0784 0.132 pCi/g Europium-155 U 0.0246 +/-0.069 0.0632 +/-0.069 0.126 pCi/g Lead-212 0.814 +/-0.101 0.0447 +/-0.101 0.0894 pCi/g Lead-214 1.06 +/-0.133 0.0388 +/-0.133 0.0775 pCi/g Manganese-54 U 0.0203 +/-0.0227 0.021 +/-0.0227 0.0419 pCi/g Niobium-94 U -0.00245 +/-0.0216 0.0181 +/-0.0216 0.0362 pCi/g Potassium-40 14.8 +/-1.33 0.171 +/-1.33 0.342 pCi/g Radium-226 0.913 +/-0.136 0.0389 +/-0.136 0.0778 pCi/g Silver-108m U 0.00187 +/-0.0209 0.0184 +/-0.0209 0.0369 pCi/g Thallium-208 0.295 +/-0.053 0.0189 +/-0.053 0.0378 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.0111 +/-0.0223 0.0174 +/-0.0224 0.0398 pCi/g KSDI 03/13/07 1254 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-014F Project: YANK01204 Sample ID: 182052015 Client ID: YANKOO Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch ID Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr9O, solid-ALL FSS 83 (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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-015F Project: YANK01204 Sample ID: 182052016 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 5.71%

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 0.660 +/-0.172 0.0619 +/-0.172 0.124 pCi/g MJHI 03/12/07 1710 616173 Americium-241 U 0.0116 +/-0.0926 0.0863 +/-0.0926 0.173 pCi/g Bismuth-212 0.659 +/-0.238 0.0835 +/-0.238 0.167 pCi/g Bismuth-214 0.567 +/-0.105 0.0353 +/-0.105 0.0705 pCi/g Cesium-134 U 0.0127 +/-0.0242 0.0212 +/-0.0242 0.0424 pCi/g Cesium-] 37 U 0.0265 +/-0.0257 0.0204 +/-0.0257 0.0408 pCi/g Cobalt-60 U 0.00525 +/-0.0228 0.0199 +/-0.0228 0.0398 pCi/g Europium-152 U 0.0317 +/-0.0631 0.0506 +/-0.0631 0.101 pCi/g Europium-154 U -0.0296 +/-0.073 0.0591 +/-0.073 0.118 pCi/g Europium-155 U 0.0898 +/-0.0717 0.0516 +/-0.0717 0.103 pCi/g Lead-212 0.596 +/-0.0767 0.0309 +/-0.0767 0.0617 pCi/g Lead-214 0.559 +/-0.0973 0.0362 +/-0.0973 0.0723 pCi/g Manganese-54 U -0.00767 +/-0.0213 0.0174 +/-0.0213 0.0348 pCi/g Niobium-94 U 0.00546 +/-0.0199 0.0176 +/-0.0199 0.0352 pCi/g Potassium-40 10.7 +/-1.14 0.170 +/-1.14 0.341 pCi/g Radium-226 0.567 +/-0.105 0.0353 +/-0.105 0.0705 pCi/g Silver-108m U -0.0103 +/-0.020 0.0164 +/-0.020 0.0328 pCi/g Thallium-208 0.200 +/-0.0443 0.0194 +/-0.0443 0.0387 pCi/g Rad Gas Flow Proportional Counting GFPC,SO9O, solid-ALL FSS Strontium-90 U 0.00756 +/-0.0216 0.0171 +/-0.0216 0.0396 pCi/g KSDI 03/13/07 1254 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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 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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-015F Project: YANK01204 Sample ID: 182052016 Client ID: YANK001 Vol. Recv.:

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

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: March 16, 2007

,Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-016B Project: YANK01204 Sample ID: 182052017 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 5.31%

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 0.605 +/-0.173 0.0501 +/-0.173 0.100 pCi/g MJHI 03/12/07 1710 616173 Americium-241 U 0.0507 +/-0.206 0.0828 +/-0.206 0.165 pCi/g Bismuth-212 0.407 +/-0.288 0.132 +/-0.288 0.264 pCi/g Bismuth-214 0.463 +/-0.0854 0.0291 +/-0.0854 0.0581 pCi/g Cesium-134 U 0.0408 +/-0.0304 0.0211 +/-0.0304 0.0422 pCi/g Cesium-137 U 0.0109 +/-0.0252 0.0154 +/-0.0252 0.0308 pCi/g Cobalt-60 U -0.00198 +/-0.0205 0.0171 +/-0.0205 0.0343 pCi/g Europium-152 U -0.0158 +/-0.0557 0.0407 +/-0.0557 0.0814 pCi/g Europium-154 U -0.0169 +/-0.0709 0.0496 +/-0.0709 0.0991 pCi/g Europium- 155 U 0.0198 +/-0.055 0.0523 +/-0.055 0.105 pCi/g Lead-212 0.605 +/-0.0686 0.0244 +/-0.0686 0.0488 pCi/g Lead-214 0.488 +/-0.0796 0.0308 +/-0.0796 0.0616 pCi/g Manganese-54 U -0.0145 +/-0.0221 0.0155 +/-0.0221 0.0311 pCi/g Niobium-94 U -0.00611 +/-0.0168 0.014 +/-0.0168 0.0279 pCi/g Potassium-40 10.3 +/-1.02 0.151 +/-1.02 0.301 pCi/g Radium-226 0.463 +/-0.0854 0.0291 +/-0.0854 0.0581 pCi/g Silver-108m U -0.00366 +/-0.0157 0.0139 +/-0.0157 0.0278 pCi/g Thallium-208 0.164 +/-0.0435 0.0151 +/-0.0435 0.0302 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U -0.0133 +/-0.0157 0.0153 +/-0.0157 0.0355 pCi/g KSDI 03/13/07 1255 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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 6

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-016B Project: YANK01204 Sample ID: 182052017 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 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.

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-017B Project: YANK01204 Sample ID: 182052018 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: .557%

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 0.609 +/-0.144 0.045 +/-0.144 0.0899 pCi/g MJHI 03/12/07 1711 616173 Americium-241 U 0.0548 +/-0.080 0.0712 +/-0.080 0.142 pCi/g Bismuth-212 0.417 +/-0.192 0.120 +/-0.192 0.240 pCi/g Bismuth-214 0.427 4-0.0777 0.0277 +/-0.0777 0.0553 pCi/g Cesium-134 U 0.0348 4-0.0206 0.0178 +/-0.0206 0.0357 pCi/g Cesium-137 U 0.0222 4-0.0187 0.0175 +/-0.0187 0.035 pCi/g Cobalt-60 U -0.0035 4-0.0175 0.0145 +/-0.0175 0.029 pCi/g Europium-152 U 0.0187 0.0495 0.0386 +/-0.0495 0.0771 pCi/g Europium-154 U 0.0202 /-0.0543 0.048 +/-0.0543 0.0959 pCi/g Europium-155 U 0.0421 d /-0.0508 0.0494 +/-0.0508 0.0987 pCi/g Lead-212 0.490 +/-0.064 0.0237 +/-0.064 0.0474 pCi/g Lead-214 0.450 /-0.0812 0.0284 +/-0.0812 0.0568 pCi/g Manganese-54 U -0.00463 d /-0.0175 0.0153 +/-0.0175 0.0305 pCi/g Niobium-94 U -3.900E- d /-0.0169 0.0146 +/-0.0169 0.0292 pCi/g 05 Potassium-40 10.1 +/-0.954 0.130 +/-0.954 0.261 pCi/g Radium-226 0.427 -I-/-0.0777 0.0277 +/-0.0777 0.0553 pCi/g Silver-108m U -0.012 -I-/-0.0147 0.0125 +/-0.0147 0.025 pCi/g Thallium-208 0.181 -I4-/-0.0359 0.0146 +/-0.0359 0.0291 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U -0.0141 +/-0.0253 0.0218 +/-0.0253 0.0454 pCi/g KSDI 03/13/07 1317 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified 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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-017B Proiect: YANK01204 Sample ID: 182052018 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 70 (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.

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-018B Proiect: YANK01204 Sample ID: 182052019 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 0%

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 0.953 +/-0.203 0.0733 +/-0.203 0.147 pCi/g MJHI 03/12/07 1711 616173 Americium-241 U 0.0327 +/-0.0873 0.0716 +/-0.0873 0.143 pCi/g Bismuth-212 0.837 +/-0.291 0.162 +/-0.291 0.325 pCi/g Bismuth-214 1.18 +/-0.154 0.0375 +/-0.154 0.075 pCi/g Cesium-134 U 0.0502 +/-0.0401 0.0278 +/-0.0401 0.0556 pCi/g Cesium-137 0.107 +/-0.0413 0.0173 +/-0.0413 0.0345 pCi/g Cobalt-60 0.102 +/-0.0501 0.0237 +/-0.0501 0.0474 pCi/g Europium-152 U -0.0175 +/-0.0784 0.0559 +/-0.0784 0.112 pCi/g Europium-154 U 0.103 +/-0.0917 0.0585 +/-0.0917 0.117 pCi/g Europium-155 U 0.0421 +/-0.0661 0.0601 +/-0.0661 0.120 pCi/g Lead-212 1.11 +/-0.110 0.0295 +/-0.110 0.059 pCi/g Lead-214 1.19 +/-0.148 0.040 +/-0.148 0.080 pCi/g Manganese-54 U 0.00432 +/-0.0244 0.0214 +/-0.0244 0.0428 pCi/g Niobium-94 U 0.00755 +/-0.0247 0.0212 +/-0.0247 0.0423 pCi/g Potassium-40 18.0 +/-1.46 0.143 +/-1.46 0.285 pCi/g Radium-226 1.18 +/-0.154 0.0375 +/-0.154 0.075 pCi/g Silver-108m U 0.00526 +/-0.0212 0.0187 +/-0.0212 0.0373 pCi/g Thallium-208 0.336 +/-0.0599 0.0201 +/-0.0599 0.0402 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.034 +/-0.026 0.0176 +/-0.026 0.0406 pCi/g KSDI 03/13/07 1255 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-018B Proiect: YANK01204 Sample ID: 182052019 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 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.

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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-019B Project: YANK01204 Sample ID: 182052020 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 07-MAR-07 Receive Date: 09-MAR-07 Collector: Client Moisture: 6.85%

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 1.27 +/-0.270 0.0787 +/-0.270 0.157 pCi/g MJHI 03/12/07 1711 616173 Americium-241 U 0.0945 +/-0.136 0.0969 +/-0.136 0.194 pCi/g Bismuth-212 1.20 +/-0.353 0.156 +/-0.353 0.313 pCi/g Bismuth-214 1.22 +/-0.167 0.0413 +/-0.167 0.0826 pCi/g Cesium-134 U 0.0513 +/-0.0303 0.0283 +/-0.0303 0.0566 pCi/g Cesium-137 U1 0.00 +/-0.0352 0.0224 +/-0.0352 0.0449 pCi/g Cobalt-60 U 0.00441 +/-0.0308 0.023 +/-0.0308 0.0459 pCi/g Europium-152 U -0.00562 +/-0.085 0.0633 +/-0.085 0.127 pCi/g Europium-154 U -0.0438 +/-0.0839 0.0681 +/-0.0839 0.136 pCi/g Europium-155 U 0.0177 +/-0.0749 0.0692 +/-0.0749 0.138 pCi/g Lead-212 1.25 +/-0.122 0.0353 +/-0.122 0.0705 pCi/g Lead-214 1.28 +/-0.155 0.0442 +/-0.155 0.0884 pCi/g Manganese-54 U 0.0236 +/-0.0359 0.0231 +/-0.0359 0.0461 pCi/g Niobium-94 U 0.00295 +/-0.0232 0.0201 +/-0.0232 0.0401 pCi/g Potassium-40 19.8 +/-1.69 0.198 +/-1.69 0.396 pCi/g Radium-226 1.22 +/-0.167 0.0413 +/-0.167 0.0826 pCi/g Silver-108m U 0.0152 +/-0.0232 0.0203 +/-0.0232 0.0406 pCi/g Thallium-208 0.353 +/-0.0598 0.0231 +/-0.0598 0.0462 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U 0.00259 +/-0.0219 0.0181 +/-0.0219 0.0401 pCi/g KSDI 03/13/07 1317 616272 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/09/07 1116 616146 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: March 16, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0006-019B Project: YANK01204 Sample ID: 182052020 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 74 (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

QUALITY CONTROL DATA 76

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary ReDort Date: March 16, 2007 Client : Connecticut Yankee Atomic Power Page 1 of 9 362 Injun Hollow Rd East Hampton, Connecticut

Contact:

Mr. Jack McCarthy Workorder: 182052 Parmname NOM . Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Alpha Spec Batch 616519 QC1201294132 182052001 DUP Americium-241 U 0.0471 U 0.128 pCi/g 92 (0% - 100%) BXL1 03/12/07 23:39 Uncert: +/-0.107 +/-0.150 TPU: +/-0.107 +/-0.151 Curium-242 U 0.00121 U 0.0196 pCi/g 177 (0%- 100%)

Uncert: +/-0.066 +/-0.078 TPU: +/-0.066 +/-0.078 Curium-243/244 U -0.077 U 0.094 pCi/g 2010 (0%- 100%)

Uncert: +/-0.0792 +1-0.150 TPU: +/-0.0799 +/-0.151 QC1201294134 LCS Americium-241 13.1 12.5 pCi/g 95 (75%-125%)

Uncert: +/-1.29 TPU: +/-2.02 Curium-242 U 0.00278 pCi/g Uncert: +/-0.107 TPU: +/-0.107 Curium-243/244 15.7 14.7 pCi/g 94 (75%-125%)

Uncert: +/-1.40 TPU: +/-2.30 QC1201294131 MB Americium-241 0.261 pCi/g Uncert: +/-0.176 TPU: +/-0.179 Curium-242 U 0.0205 pCi/g Uncert: +/-0.0543 TPU: +/-0.0544 Curium-243/244 U -0.0429 pCi/g Uncert: +/-0.089 TPU: +/-0.0892 QC1201294133 182052001 MS Americium-241 13.1 U 0.0471 13.5 pCi/g 103 (75%-125%)

Uncert: +/-0.107 +/-1.38 TPU: +/-0.107 +/-2.19 Curium-242 U 0.00121 U -0.0272 pCi/g Uncert: +/-0.066 +/-0.0307 TPU: +/-0.066 +/-0.0309 Curium-243/244 15.7 U -0.077 16.0 pCi/g 102 (75%-125%)

Uncert: +/-0.0792 +/-1.51 TPU: +/-0.0799 +/-2.52 Batch 616521 QC1201294136 182052001 DUP Plutonium-238 U -0.0466 U 0.0208 pCi/g 522 (0% - 100%) BXLI 03/12/07 23:39 77

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 182052 Page 2 of 9 Parmname NOM Sample Qual (C Units RPD% REC% Range Anist Date Time Rad Alpha Spec Batch 616521 Uncert: +/-0.0409 +/-0.111 TPU: +/-0.0413 +/-0.112 Plutonium-239/240 u 0.0513 U -0.0446 pCi/g 2860 (0%- 100%)

Uncert: +/-0.141 +/-0.0391 TPU: +/-0.141 +/-0.0394 QC1201294138 LCS Plutonium-238 U 0.0604 pCi/g (75%- 125%) 03/12/07 23:39 Uncert: +/-0.104 TPU: +/-0.105 Plutonium-239/240 13.0 13.7 pCi/g 105 (75%-125%)

Uncert: +/-1.25 TPU: +/-2.01 QC1201294135 MB Plutonium-238 U -0.00136 pCi/g 03/12/07 23:39 Uncert: +/-0.166 TPU: +/-0.166 Plutonium-239/240 U 0.00272 pCi/g Uncert: +/-0.104 TPU: +/-0.104 QC1201294137 182052001 MS Plutonium-238 u -0.0466 U -0.032 pCi/g (75%-1 25%) 03/12/07 23:39 Uncert: +/-0.0409 +/-0.028 TPU: +/-0.0413 +/-0.0283 Plutonium-239/240 13.0 u 0.0513 14.0 pCi/g 108 (75%-125%)

Uncert: +/-0.141 +/-1.20 TPU: +/-0.141 +/-1.97 Batch 616524 QC1201294140 182052001 DUP Plutonium-24 I U -0.715 U -0.433 pCi/g 0 (0% - 100%) BXLI 03/15/07 11:59 Uncert: +/-6.59 +/-6.15 TPU: +/-6.59 +/-6.15 QC1201294142 LCS Plutonium-241 139 128 pCi/g 92 (75%-125%) 03/15/07 12:32 Uncert: +/-11.7 TPU: +/-17.3 QC1201294139 MB Plutonium-241 U -2.28 pCi/g 03/15/07 11:43 Uncert: +/-6.25 TPU: +/-6.25 QC1201294141 182052001 MS Plutonium-241 139 U -0.715 118 pCi/g 85 (75%-125%) 03/15/07 12:16 Uncern: +/-6.59 +/-11.2 TPU: +/-6.59 +/-16.6 Rad Gamma Spec Batch 616173 QC1201293221 182052009 DUP Actinium-228 0.645 0.563 pCi/g 14 (0% - 100%) MJHI 03/12/07 17:12 Uncert: +/-0.113 +/-0.142

+/-0.142 778

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 182052 Page 3 of 9 Parmname NOM Sample Qual OC Units RPD% REC% Ranee Anist Date Time Rad Gamma Spec Batch 616173 TPU: +/-0.113 Americium-24 I U 0.0231 U 0.00732 pCi/g 104 (0%- 100%)

Uncert: +/-0.0654 +/-0.0304 TPU: +/-0.0654 +/-0.0304 Bismuth-212 0.408 0.519 pCi/g 24 (0%- 100%)

Uncert: +/-0.167 +/-0.269 TPU: +/-0.167 +/-0.269 Bismuth-214 0.390 0.544 pCi/g 33 (0%- 100%)

Uncert: +/-0.0599 +/-0.0938 TPU: +/-0.0599 +/-0.0938 Cesium- 134 U 0.0173 U 0.0344 pCi/g 66 (0%- 100%)

Uncert: +/-0.0196 +/-0.025 TPU: +/-0.0196 +/-0.025 Cesium- 137 U 0.00279 U -0.0109 pCi/g 337 (0%- 100%)

Uncert: +/-0.0126 +/-0.0208 TPU: +/-0.0126 +/-0.0208 Cobalt-60 U -0.00377 U -0.00854 pCi/g 78 (0%- 100%)

Uncert: +/-0.0112 +/-0.0212 TPU: +/-0.0112 +/-0.0212 Europium-152 U -0.00585 U 0.0325 pCi/g 288 (0%- 100%)

Uncert: +/-0.0323 +/-0.0567 TPU: +/-0.0323 +/-0.0567 Europium-154 U 0.00207 U 0.0128 pCi/g 144 (0%- 100%)

Uncert: +/-0.0381 +/-0.056 TPU: +/-0.0381 +/-0.056 Europium- 155 U 0.0141 U -0.0251 pCi/g 716 (0% - 100%)

Uncert: +/-0.0355 +/-0.0436 TPU: +/-0.0355 +/-0.0436 Lead-212 0.584 0.625 pCi/g 7 (0%- 20%)

Uncert: +/-0.0558 +/-0.0802 TPU: +/-0.0558 +/-0.0802 Lead-214 0.505 0.472 pCi/g 7 (0%-20%)

Uncert: +/-0.0595 +/-0.0832 TPU: +/-0.0595 +/-0.0832 Manganese-54 U 0.0152 U 0.0103 pCi/g 38 (0%- 100%)

Uncert: +/-0.013 +/-0.0194 TPU: +/-0.013 +/-0.0194 Niobium-94 U -0.000354 U -0.0111 pCi/g 188 (0% - 100%)

Uncert: +/-0.00983 +/-0.0181 TPU: +/-0.00983 +/-0.0181 Potassium-40 11.0 10.5 pCi/g 4 (0% - 20%)

Uncert: +/-0.785 +/-1.00 TPU: +/-0.785 +/-1.00 Radium-226 0.390 0.544 pCi/g 33 (0%- 100%)

Uncert: +/-0.0599 +/-0.0938 TPU: +/-0.0599 +/-0.0938 Silver-108m U -0.00639 U 0.00705 pCi/g 4110 (0%- 100%)

Uncert: +/-0.00999 +/-0.0165 79

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 182052 Page 4 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 616173 TPU: +/-0.00999 +/-0.0165 Thallium-208 0.177 0.201 pCi/g 12 (0%- 100%)

Uncert: +/-0.0295 +/-0.044 TPU: +/-0.0295 +/-0.044 QC1201293222 LCS Actinium-228 U 0.342 pCi/g 03/13/07 14:57 Uncert: +/-0.417 TPU: +/-0.417 Americium-241 23.4 26.1 PCi/g 112 (75%-125%)

Uncert: +/-2.42 TPU: +/-2.42 Bismuth-212 U -0.0358 pci/g Uncert: +/-0.688 TPU: +/-0.688 Bismuth-214 U 0.118 pCi/g Uncert: +/-0.169 TPU: +/-0.169 Cesium-134 U -0.00567 pCi/g Uncert: +/-0.110 TPU: +/-0.110 Cesium-137 9.46 10.1 pCi/g 107 (75%-125%)

Uncert: +/-0.938 TPU: +/-0.938 Cobalt-60 13.5 14.5 pCi/g 107 (75%-125%)

Uncert: +/-0.955 TPU: +/-0.955 Europium- 152 U 0.0149 pCi/g Uncert: +/-0.225 TPU: +/-0.225 Europium- 154 U -0.0892 pCi/g Uncert: +/-0.206 TPU: +/-0.206 Europium- 155 U 0.0586 pCi/g Uncert: +/-0.223 TPU: +/-0.223 Lead-212 0.223 pCi/g Uncert: +/-0.170 TPU: +/-0.170 Lead-214 U -0.0456 pCi/g Uncert: +/-0.161 TPU: +/-0.161 Manganese-54 U 0.0136 pCi/g Uncert: +/-0.0984 TPU: +/-0.0984 Niobium-94 U 0.0513 pCi/g Uncert: +/-0.0811 TPU: +/-0.0811 Potassium-40 U 0.184 pci/g 80

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 182052 Page 5 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 616173 Uncert: +/-0.681 TPU: +/-0.681 Radium-226 U 0.118 pCi/g (75%-125%)

Uncert: +/-0.169 TPU: +/-0.169 Silver-108m U -0.00312 pCi/g Uncert: +/-0.0888 TPU: +/-0.0888 Thallium-208 U -0.0493 pCi/g Uncert: +/-0.0827 TPU: +/-0.0827 QCI1201293220 MB Actinium-228 U 0.051 pCi/g 03/12/07 17:12 Uncert: +/-0.0435 TPU: +/-0.0435 Americium-241 U 0.00975 pCi/g Uncert: +/-0.0307 TPU: +/-0.0307 Bismuth-212 U 0.0124 pCi/g Uncert: +/-0.076 TPU: +/-0.076 Bismuth-214 U 0.00929 pCi/g Uncert: +/-0.0235 TPU: +/-0.0235 Cesium- 134 U 0.00193 pCi/g Uncert: +/-0.0113 TPU: +/-0.0113 Cesium-137 U 0.00333 pCi/g Uncert: +/-0.0134 TPU: +/-0.0134 Cobalt-60 U 0.000576 pCi/g Uncert: +/-0.0123 TPU: +/-0.0123 Europium- 152 U 0.000986 pCi/g Uncert: +/-0.0276 TPU: +/-0.0276 Europium- 154 U -0.00532 pCi/g Uncert: +/-0.0309 TPU: +/-0.0309 Europium- 155 U -0.0203 pCi/g Uncert: +/-0.0258 TPU: +/-0.0258 Lead-212 U 0.00742 pCi/g Uncert: +/-0.0291 TPU: +/-0.0291 Lead-214 U -0.00443 pCi/g Uncert: +/-0.0241 TPU: +/-0.0241 81

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 182052 Page 6 of 9 Parmname NOM Samnle Oual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 616173 Manganese-54 U -0.000142 pCi/g Uncert: +/-0.0101 TPU: +/-0.0101 Niobium-94 U -0.00436 pCi/g Uncert: +/-0.010 TPU: +/-0.010 Potassium-40 U 0.183 pCi/g Uncert: +/-0.151 TPU: +1-0.151 Radium-226 U 0.00929 pCi/g Uncert: +/-0.0235 TPU: +/-0.0235 Silver- 108m U 0.0051 pCi/g Uncert: +/-0.00959 TPU: +/-0.00959 Thallium-208 U -0.00821 pCi/g Uncert: +/-0.0142 TPU: +/-0.0142 Rad Gas Flow Batch 616272 QC1201293468 182052008 DUP Strontium-90 U 0.0329 U 0.000442 pCi/g 0 (0% - 100%) KSDI 03/13/07 15:01 Uncert: +/-0.0257 +/-0.0189 TPU: +/-0.0257 +/-0.0189 QC1201293470 LCS Strontium-90 1.44 1.46 pCilg 102 (75%-125%) 03/13/07 15:01 Uncert: +/-0.0992 TPU: +/-0.105 QCI201293467 MB Strontium-90 U 0.0268 pCi/g 03/13/07 15:01 Uncert: +/-0.0211 TPU: +/-0.0211 QC1201293469 182052008 MS Strontium-90 5.55 U 0.0329 5.43 pCi/g 98 (75%-125%) 03/13/07 15:01 Uncert: +/-0.0257 +/-0.384 TPU: +/-0.0257 +/-0.403 Rad Liquid Scintillation Batch 616193 QC1201293257 182052001 DUP Iron-55 U 41.1 U -3.98 pCi/g 0 (0% - 100%) AXPI 03/14/07 12:35 Uncert: +/-43.8 +/-36.5 TPU: +/-43.9 +/-36.5 QC1201293259 LCS lron-55 1240 1080 pCi/g 87 (75%-125%) 03/14/07 13:07 Uncert: +/-76.3 TPU: +/-105 QC1201293256 MB Iron-55 U 32.1 pCi/g 03/14/07 12:19 82

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 182052 Page 7 of 9 Parmname NOM SamDle Oual OC Units RPD% REC% Ran*e Anist Date Time Rad Liquid Scintillation Batch 616193 Uncert: +/-44.2 TPU: +/-44.3 QC1201293258 182052001 MS Iron-55 1250 U 41.1 943 pCi/g 76 (75%-125%) 03/14/07 12:51 Uncert: +/-43.8 +/-73.6 TPU: +/-43.9 +/-95.5 Batch 616195 QC1201293261 182052001 DUP Nickel-63 U 3.86 U -1.18 pCi/g 0 (0% - 100%) IXPI 03/13/07 19:07 Uncert: +/-8.80 +/-8.11 TPU: +/-8.80 +/-8.11 QC1201293263 LCS Nickel-63 576 493 pCi/g 86 (75%-125%) 03/13/07 19:39 Uncert: +/-22.1 TPU: +/-28.4 QC1201293260 MB Nickel-63 U 1.12 pCi/g 03/13/07 18:51 Uncert: +/-8.10 TPU: +/-8.10 QC1201293262 182052001 MS Nickel-63 576 U 3.86 482 pCi/g 84 (75%-125%) 03/13/07 19:23 Uncert: +/-8.80 +/-22.1 TPU: +/-8.80 +/-28.2 Batch 616197 QC1201293269 182052001 DUP Technetium-99 U 0.0737 U 0.137 pCi/g 0 (0% - 100%) VXPI 03/15/07 19:00 Uncert: +/-0.210 +/-0.217 TPU: +/-0.210 +/-0.217 QC1201293271 LCS Technetium-99 20.1 18.3 pCi/g 91 (75%-125%) 03/15/07 12:54 Uncert: +/-0.760 TPU: +/-0.889 QC1201293268 MB Technetium-99 U 0.306 pCilg 03/15/07 18:28 Uncert: +/-0.249 TPU: +/-0.250 QC1201293270 182052001 MS Technetium-99 20.1 U 0.0737 16.2 pCilg 81 (75%-125%) 03/15/07 12:37 Uncert: +/-0.210 +/-0.773 TPU: +/-0.210 +/-0.876 Batch 616201 QC1201293277 182052001 DUP Tritium U -0.225 U -0.981 pCi/g 0 (0%- 100%) kXD2 03/12/07 20:47 Uncert: +/-1.00 +/-1.00 TPU: +/-1.00 +/-1.00 QCI1201293279 LCS Tritium 11.2 9.29 pCi/g 83 (75%-125%) 03/12/07 22:05 Uncert: +/-2.55 TPU: +/-2.55 83

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 182052 Page 8 of 9 Parmname NOM Samnle Oual OC Units RPD% REC% Range Anist Date Time Rad Liquid Scintillation Batch 616201 QC1201293276 MB Tritium U -0.862 pCi/g 03/12/07 19:46 Uncert: +/-0.964 TPU: +/-0.964 QC1201293278 182052001 MS Tritium 11.5 U -0.225 9.74 pCi/g 85 (75%-125%) 03/12/07 21:49 Uncert: +/-1.00 +/-2.56 TPU: +/-1.00 +/-2.57 Batch 616202 QC1201293281 182052001 DUP Carbon-14 U 0.0071 U 0.0332 pCi/g 0 (0% - 100%) ,XD2 03/13/07 10:34 Uncert: +/-0.0875 +/-0.0861 TPU: +/-0.0875 +/-0.0861 QC1201293283 LCS Carbon-14 6.59 6.53 pCi/g 99 (75%-125%) 03/13/07 12:39 Uncert: +/-0.189 TPU: +/-0.214 QC1201293280 MB Carbon-14 U 0.0791 pCi/g 03/13/07 09:32 Uncert: +/-0.0866 TPU: +/-0.0866 QC1201293282 182052001 MS Carbon-14 7.15 U 0.0071 7.02 pCi/g 98 (75%-125%) 03/13/07 11:37 Uncert: +/-0.0875 +/-0.205 TPU: +/-0.0875 +/-0.232 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 QC Samples were not spiked with this compound 84

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 182052 Page 9 of 9 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst 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.

85

PRIMARY AUXILIARY BUILDING (PAB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0006 RELEASE RECORD ATTACHMENT 4 (DQA RESULTS)

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PRIMARY AUXILIARY BUILDING (PAB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0006 RELEASE RECORD ATTACHMENT 4A (PRELIMINARY DATA REVIEW)

Revision 0

RCA - PRIMARY AUXILIARY BUILDING (PAB)

SURVEY UNIT 9312-0006 RELEASE RECORD Attachment 4 Survey Unit: 9312-0006 Area Description Radiologically Controlled Area - Primary Auxiliary Building (PAB)

Classification 1 Survey Media Surface Soils Type of Survey Final Status Survey Number of Measurements 15 Static, 4 Judgmental STATISTICS on TOTAL STATISTICS on NON-POPULATION PARAMETRIC POPULATION Cs -137 Co-60 Sr--90 Cs-137 Co-60 Sr-90 DCGLop (pCilg): 4.75 E+00 2.29E+00 9.301E-01 DCGLop (pCi/g): 4.75E+00 2.29E+00 9.30E-01 Minimum Value: -2.2 7E-02 -1.77E-02 -3.23 E-02 Minimum Value: -2.27E-02 -1.77E-02 -3.23E-02 Maximum Value: 1.07 E-01 1.02E-01 3.401E-02 Maximum Value: 3.19E-02 1.86E-02 3.292-02 Mean: 1.522E-02 7.16E-03 7.99 E-03 Mean: 1.O1E-02 1.94E-03 1.00E-02 Median: 1.4A7E-02 4.OOE-03 1.081E-02 Median: 1.64E-02 3.58E-03 1.11E-02 Standard Deviation: 2.655E-02 2.42E-02 1.671E-02 Standard Deviation: 1.74E-02 1.02E-02 1.59E-02 SampleIDGPS Coordinates Result 2c Cs-137 j MD. r Identified R esult]

2o Co-60

[D (pCi/g)

I Identified esult.[,D (pcl/g) i 2a Sr-90 (pcl/g)

I Identified Fraction of DCGL North East I(pCllg) (Pcplg))

1........ 3.58E-03 0.019 .........

3.30E-02 .........

. ............ 1 13E-02

....................................... 00.018

.................................. 3.19E-02

.................................... 0.015

...... 236695.21 * ................................

9312-0006-001F 668582.76 .....

5.86E-03 . ...*.

3.26E-02 T.................................

0.018 ................

÷.............

-1.37E-02 .... 0.022 3.67E-02 -1.08E-02 0.020 3.15E-02......... 1.07E-02 0018 3.13E-02 0.004 9312-0006-002F

................ ...236695.21 I................

.... ...*. 668620.89

• ..... i ..........................

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

I.....

9312-0006-003F I.................

236662.19 668563.70 -2.27E-02 0.024 3.68E-02 3.77E-04 0.021 3.55E-02 2.66E-03 ji............................................. .

0.023 4.24E-02 i -0.002 9312-0006-004F 236662.19 668601.83 ........... 3.19E-02 0.025 ............ 1.36E-02 +.........

...... 1.86E-02

......... 0.021 ......................

......................... 3.90E-02 I................

........... 1.63E-03 1 0.015..........

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

2.99E-02 0.017

......I...................

......................................... ....... i................................. I......................

t .........

236662.19....i....

9312-0006-005F ....... ....... ................

668639.96 2.17E-02 ....................

.. 0.038 .................................

3.16E-02 ............

I............................................

......... f................................. -5.29E-03 0.019 ................................

3.09E-02 . 1.27E-02 ".00..""."""

.-. 0.023 ".."..- i 404E-02 "" '"  ! 0.016 0020 3.62E-02 ................................. 00.20 2,26E-02 ................................. + 0.025 3.28E-02 ..................................

9312-0006-006F ..... .......

................................. 236662.19

.............. 668678.09 .......................

11...................... -2.09E-02

.................................. .......... 0.023

"........... 3.46E-02

................................ .. ... ..1.20E-02

.............. I..

9312-0006-007F... ..0+026

.... 4.71E-02.....i.......... ...

9......86E-03

...i....

...0.024 i .. ......................i ..... ...... ...

......................0.016

................ 4.23E-02 -0.026

..236629.17

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

668544.63 ...........

1.87E-02 ..... ....... ...... ..

... ..... 4.33E-02 ... -3.23E-02 9312-0006-008F 236629.17 1 668582.76 6.32E-03 0.018 3.18E-02 -1.77E-02 0.018 2.67E-02 3.29E-02 0.026 4.03E-02 + 0.029 1 ....0.021 0.012 9312-0006-009F I............... ....236629.17

............................. I.............

. ..{.... ..... . .. ... .. . 2.79E-03 668620.89 .....................

... ....................... 1,90E-02.. ................. ....... .. ....

0.013 .. .. ........................... -3.77E-03 0.011

... 1.90E-02

.... ................. 1.24E-02

.. ......... ............... ......... ......... ...... ......... ............. .. ......... .... 3.59E-02 9312-0006-01 OF 236629.17 8.25E-03.....

668659.02 ........................... * ..... 0.019  ?. 3.08E-02

..... -1 07E-02 i ................................

....... 0018 I......................

.i ........ 2.87E-02

.........i...................... 1 .......

- .......... 1.09E-02 1 ............ 0021

........................................ 3.67E-02 ........

-..................... ............. 0.009 93200602F.......................

9312-0006-011 F ............

9I..............26 236596.15 8o.3 ...........

,5!.............................

6668563.70 12+88E-02 6E0............ .................

00.024 04................

82 3.89E-02 E-2 ...

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

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

6.96E-035 -0...........-.

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

0.017 ...........

O5.................................5.

i 2.98E-02 0- 2............ ..... .......................................

2.95E-02 0.022 3.33E-02 ..........

+ 0.041 931-00601F 369615 6660 8 164-0 034 6.282-02 -8.752-04 0.035 5.80E-02 -7.77E-0 003 47-02 -0.005 93 _ _ _ _23656.1_ 668601 0.034 _ _ _ _ _ _ _ - _ _ _ _ _ _ L _

.57E_ _

REVISION 0 Page 1 of 2

RCA - PRIMARY AUXILIARY BUILDING (PAB)

SURVEY UNIT 9312-0006 RELEASE RECORD Attachment 4 Cs-137 Co-60 Sr-90 GPS Coordinates Sample ID Result MDA Result MDA Result 1MDA Fraction of 2a I Identified I 2or I Identified I 2a I Identified DCGL North East (pCI/g) (pCi/g) (pCI/g) (pCi/g) (pCi/g) (pCI/g) 9312-0006-013F 236596.15 1..................................

668639.96 .................... 2.18E-02 ............. 0.022

-...............................+

2.58E-02 i ....................... 1.23E-02 . 0.017

............................... 3.00E-02 i..............

i.................................. 2.47E-02 ..........

.............. 0.024 3.92E-02 + 0.037

............................ ................................. ....... t ........ .........

t ...............................

9312-0006-014F 236563.13 668582.76 1.95E-02 0.024 4.16E-02 9.32E-03 0 0.028............

............. 4.87E-02 I.................. .. .. 1. 11E-02

.......................... 0.022 3.98E-02 0.020 9312-0006-01SF 236563.13 668620.89 2.65E-02 0.026 4.08E-02 + 5.25E-03 .: 0.023

.............. J...3.98E-02 I.................

.. .................................. ..................... 7.56E-03 .........0.022

.................................. 3.96E-02 0.016 T.......

t,............................

9312-0006-.13FS 236596,15 668639.96 1.30E-02 0.023 4.05E-02 1.31E-02 0.022 3.91E-02 2.57E-05 0,016 3.16E-02 0.008

. I ..................

6686034... 3. ...........................

I.....................

3.

9312-0006-016-B 236716.60 i668603.43 1.09E-02 1... ..... 0.025 3 .......

3..

!3,08E-02 0 .....................

..... E........i ............. -1.33E-02 .0.016 3.55E-02

-1.98E-03i 0,021 3.43E-02 -0.013 9312-0006-017-B 236676.30 668657.84 ................. 2.22E-02 0.019

....... 1................................. +

3.50E-02 i..................................

................................. -3.50E-03 0.018 i 2.90E-02 -1 41E-02 0.025 4.54E-02 -0.012 i .....................

9312-0006-018-B 236548.47 668611.18 1.07E-01 0.041 3.45E-02 + 1.02E-01 0.041 . 3.45E-02 + 3.40E-02 0.026 4.06E-02 + 0.104 9312-0006-019-B ........................... .................................. ...............................-

236607.06 668523.70 0.OOE+00 4.41 E-03 ! 0.031 i4.59E'02 2.59E-03 0.022 4.01E-02 0.005 0.035 4.49E-02 OTHER RADIONUCLIDES SIsotope Result 1 MDA I DCGLop Fraction of

~Sample ID Istp ____

1.7c,,g 2o"a 0.017 Identified II.. (pCig) DCGL 9312-0006-001F....... ..... ........ ... ... . ... .. ... .. .. ... .. .. .Mn-54 ... .. .. .... 1.73E-02

......... . -- - . 0.017

.*- --3,25E-02

---

i + . . . .1.0E+01 . . .. . . . . 0.002 . . .. . ------..

9312-0006-004F

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

.... 2.46E-02

. ... . i 0.016 3.84E-02

..---- i

---

.. +

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

. ......0.009 9312-0006-007F EEu-155 9.11E-02 i 0.075 9.49E-02 + i 2.4E+02 0.000 9312-0006-008F

-Eu-155 5.83E-02 0,048 9.25E-02 + 2.4E+02 0.000 9312-0006-009F jMn-54 1 52E-02 0.013 1.67E-02 + 1.OE+01 0.001 1931-:2- .. ....... ......... .......... .... ....... 1.10E+00 06-O-12;F ....................................... I'H-3 ......... ............-.------------------...

1.090 1.82E+00 + .............

2.5E+02 ..... 0.004........

1[93-1-2-000-6---01 -- ----------....................

2;----------- -----------------.------------------

5.48E+01 1

41,300 -------------------

5.44E+01 I ----------.-----

+ 1.6E+04 0.003 9312-0006-014F !Cs-134 3.43E-02 02 5.02E-02 + 28E0 001 9312-0006-015F L------

jEu-155 [

8.98E-02 0.072 1.03E-01

---

--i:----------

+ 2.4E+02 0.000 9312-0006-016B iCs-134 I 4.08E-02 0.030 4.22E-02 + 2.8E+00 0.015 9312-0006-017B !Cs-134 [3 48E-02 0.021 3.57E-02 + 2.8E+00 0.012 9312-0006-018B !Cs-134 55.02E-02 0.040 5.56E-02 + 2.8E+00 0.018 9312-0006-018F Eu-154 I 1.03E-01 0.092 1.17E-01 + 5.6E+00 0.018 9312-0006-019B I 513E-02 0030 5.66E-02 + .8E+00 2Cs-134 0.018 REVISION 0 Page 2 of 2

PRIMARY AUXILIARY BUILDING (PAB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0006 RELEASE RECORD ATTACHMENT 4B (GRAPHICAL REPRESENTATION OF DATA)

Revision 0

FREQUENCY PLOT FOR CESIUM-137 Survey Unit: 9312-0006 Survey Unit Name: RCA - Primary Auxiliary Building (PAB)

Mean: 1.01E-02 pCi/g Frequency Plot For Cs-137 10 8

(.)

0 4)

L.

4-U-

2-0

-1.36E-02 -4.50E-03 4.60E-03 1.37E-02 2.28E-02 3.19E-02 Upper End Value (pCi/g)

Upper End Observation Observation Value Frequency Frequency

-1.36E-02 3 20%

-4.50E-03 0 0%

4.60E 1 7%

1.37E-02 3 20%

2.28E-02 6 40%

3.19E-02 2 13%

Total: 15 100%

-24zo0o7 SuRevitewedby/ate Reviewed by/Date 1 of 1

QUANTILE PLOT FOR STRONTIUM-90 Survey Unit: 9312-0006 Survey Unit Name: RCA - Primary Auxiliary Building (PAB)

Mean: 1.00E-02 pCi/g Quantile Plot For Sr-90 4.00E-02 3.00E-02 2.00E-02 1.00E-02 C

0

- .0.00E+00 C

-1.00E-02 0 -2.OOE-02

-3.OOE-02

-4.OOE-02 0 20 40 60 80 100 Percentage Sr-90 Rank Percentage

-3.23E-02 1 3.3%

-7.77E-03 2 10.0%

1.63E-03 3 16.7%

2.66E-03 "4 23.3%

7.56E-03 5 30.0%

1.07E-02 6 36.7%

1.09E-02 7 43.3%

1.11 E-02 8 50.0%

1.13E-02 9 56.7%

1.24E-02 10 63.3%

1.27E-02 11 70.0%

2.26E-02 12 76.7%

2.47E-02 13 83.3%

2.95E-02 14 90.0%

3.29E-02 15 96.7%

3) Io7 SReiewed Iy/Date Reviewed by/Date

FREQUENCY PLOT FOR STRONTIUM-90 Survey Unit: 9312-0006 Survey Unit Name: RCA - Primary Auxiliary Building (PAB)

Mean: 1.00E-02 pCi/g Frequency Plot For Sr-90 7

6

>5 S4-

'3 u"2 0

-2.14E-02 -1.06E-02 3.OOE-04 1.12E-02 2.20E-02 3.29E-02 Upper End Value (pCilg)

Upper End Observation Observation Value Frequency Frequency

-2.14E-02 1 7%

-1.06E-02 0 0%

3.OOE-04 - 1 7%

1.12E-02 6 40%

2.20E-02 3 20%

3.29E-02 4 27%

Total: 15 100%

S mitted yl/Date Reviewed by/Date 1 of 1

PRIMARY AUXILIARY BUILDING (PAB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0006 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: 0006 WPIR #: N/A Survey Area Name: Primary Auxiliary Building Classification: 1 TYPE I (a error): 0.05 N: 15 (PAB)

Radionuclides: 1st Radionuclide 2 nd Radionuclide 3rd Radionuclide 4 th Radionuclide Cs-137 Co-60 Sr-90 DCGL: 4.75E+00 2.29E+00 9.30E-01 Results 1 st Results 2 nd Results 3 r` Results 41h Weighted Sum 1-W, Sign Radionuclide Radionuclide Radionuclide Radionuclide (Ws)

(pCi/g) (pCi/g) (pCi/g) (pCi/g) 5.86E-03 3.58E-03 1..13E-02 0.01 0.99 +1

-1.37E-02 -1.08E-02 1.07E-02 0.00 1.00 +1

-2.27E-02 3.77E-04 2.66E-03 0.00 1.00 +1 3.19E-02 1.86E-02 1.63E-03 0.02 0.98 +1 2.17E-02 -5.29E-03 1.27E-02 0.02 0.98 +1

-2.09E-02 1.20E-02 2.26E-02 0.03 0.97 +1 1.87E-02 9.86E-03 -3.23E-02 -0.03 1.03 +1 6.32E-03 -1.77E-02 3.29E-02 0.03 0.97 +1 2.79E-03 -3.77E-03 1.24E-02 0.01 0.99 +1 8.25E-03 -1.07E-02 1.09E-02 0.01 0.99 +1 2.88E-02 6.96E-03 2.95E-02 0.04 0.96 +1 1.64E-02 -8.75E-04 -7.77E-03 -0.01 1.01 +1 2.18E-02 1.23E-02 2.47E-02 0.04 0.96 +1 1 95E-02 9.32E-03 1.11E-02 0.02 0.98 +1 2.65E-02 5.25E-03 7.56E-03 0.02 0.98 +1 Number of positive differences (S+) 15 Výa Survey Unit Meets the Acceptance Criteria Performed by: Dalvi tkowiiu Date: 3/20/2007 Independent Review by: / Date:

Page 1 of 1

PRIMARY AUXILIARY BUILDING (PAB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0006 RELEASE RECORD ATTACHMENT 4D (QC SPLIT RESULTS)

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Health Physics Procedure 24265-000-GPP-GGGR-R5124-000-Rev.CY-000 Attachment A Split Sample Assessment Form Survey Area #: 9312 Survey Unit I 0006 Survey Unit Name: RCA - Primary Auxiliary Building (PAB)

Sample Plan or WPIR#: N/A SML#: 9312-0006-013 Sample

Description:

Comparison of split samples collected from sample measurement location #13 and analyzed using gamma spectroscopy by off-site Vendor Laboratory. The standard sample was 9312-0006-01 31Fl,the comparison sample was 9312-0006-0131FS.

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

K-40 1.1OE+01 0.478 23 0.75- 1.33 1.02E+01 0,560 0.93 Y LOITIMIellt.,"/ifl-ltiVU  !.-AJLIn. .Cs-13 1 was notI,detetedc Iin sufitCitCL I able ISprovided to show acceptance criteria useu to quantities in the field split results at location 93 12-0006-013FS to assess split samples.

evaluate in accordance with procedure. Evaluation using the reported results fbr K-40 resulted in acceptable agreement between the field- Rcsolution 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 - 133 51 -200 0.80 - 1.25

>200 0.85 .- 1.18 Date:

/Z I /&,F-Page I of I

PRIMARY AUXILIARY BUILDING (PAB)

(FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0006 RELEASE RECORD ATTACHMENT 4E (COMPASS POWER CURVE)

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DQA Surface Soil Report Assessment Summary Site: 9312 Planner(s): Wojo Survey Unit Name: 9312-0006 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 o0.9

• 0.8

, 07 S0,6 0.5

= 0.4 i I _

,*0.3

! I -

S02 S01

.0 0.2 04 0.6 08 1.0 12 Unity Rule Sum-of-Ralios, including background Prospective Power N 1-beta .... Actual Power LBGR - - Estimated Power DCGL ---- Retrospective Power COMPASS vl.0.0 3/21/2007 Page1I