ML071730440

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Final Status Survey (FSS) Final Report - Phase VII - Chapter 6 of 19 - Appendix A5, Survey Unit Release Record 9312-0003, Southwest 115Kv Switchyard (Former Radiologically Controlled Area)
ML071730440
Person / Time
Site: Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date: 04/27/2007
From: Wojtkowiak D
Connecticut Yankee Atomic Power Co
To:
NRC/FSME
References
Download: ML071730440 (132)


Text

  • 't4 IS Final Status Survey Final Report Phase VII Appendix A5 Survey Unit Release Record 9312-0003, Southwest 115Kv Swithyard (Former Radiologically Controlled Area May 2007

CYAPCO FINAL STATUS SURVEY RELEASE RECORD SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 Date: A F-107 FSS En incer Reviewed By: S Date: -__ -_

FSS Engineer Approved By: a' Date: 1,/177

'Uectr nical Support Manager Revision 0

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD TABLE OF CONTENTS

1. SURVEY UNIT DESCRIPTION ...................................................... 3
2. CLASSIFICATION BASIS ............................................................... 3
3. DATA QUALITY OBJECTIVES (DQO) .......................................... 8
4. SU RV EY D ESIGN ........................................................................... 11
5. SURVEY IMPLEMENTATION ...................................................... 14
6. SURVEY RESULTS ........................................................................ 15
7. QUALITY CONTROL .................................................................... 18
8. INVESTIGATIONS AND RESULTS ............................................. 19
9. REMEDIATION AND RESULTS .................................................... 19
10. CHANGES FROM THE FINAL STATUS SURVEY PLAN ...... 19
11. DATA QUALITY ASSESSMENT (DQA) ...................................... 19
12. A N O M A LIE S .................................................................................... 20
13. C O NC LU SIO N .................................................................................. 20
14. A TTA CH M EN TS ............................................................................. 21 14.1 Attachment 1 - Figures (5 pages including cover) 14.2 Attachment 2 - Scan Results (4 pages including cover) 14.3 Attachment 3 - Laboratory Data (85 pages including cover) 14.4 Attachment 4 - DQA Results (16 pages including covers)

TOTAL 131 Revision 0

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD SURVEY UNIT DESCRIPTION Survey Unit 9312-0003 (Southwest 115 kV Switchyard) is designated as Final Status Survey (FSS) Class 1 and consists of approximately one thousand four hundred eighty-six (1,486) square meters of open land and is located approximately one thousand four hundred seventy-seven feet (1,477 ft) to the southeast of the site benchmark .(Northing: 237370.20, Easting: 667394.57) associated with 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 9312-0006 and land Survey Unit 9312-0001 to the north (called north as oriented with the north to south flow of the Connecticut River), land Survey Unit 9312-0001 and land Survey Unit 9312-0002 to the east, land Survey Unit 9312-0008 to the south, and land Survey Unit 9306-0000 to the west. 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 S068 through S070 (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 9312-0003 consisted of:

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

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

A review of the "Initialand Supplemental CharacterizationReports " as well as the previous "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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SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD During plant operation, Survey Unit 9312-0003 was the location of significant reactor support structures and systems, including the southwestern corner of the Primary Auxiliary Building (PAB), the Feed Water/Steam Penetration Building (FW/STM),

the Shutdown Auxiliary Feed Pump House, the De-mineralized Water Storage Tank (DWST), the Condensate Storage Tank (CST) and the northwestern quadrant of the 115kV Switchyard.

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.

The FW/STM Penetration Building or "Terry Turbine Building" was located directly to the west of the Containment Building location. The building had three basic levels.

The lower level room contained auxiliary Feedwater pumps and piping, the middle level room contained the main steam dump valves and the upper level rooms housed the main steam stop valves. An outside catwalk that connected this building to the Service Building was located directly above Main Steam and Feedwater piping. The upper level also served as the alternate access HP control point to the Containment Building during decommissioning. The FW/STM Penetration Building was maintained free of loose radioactive contamination during facility opera tion. Periodic radiological surveys were routinely performed to substantiate this radiological condition.

The Electric Shutdown Auxiliary Feed Pump House contained the Electric Shutdown Auxiliary Feed Pump and all above grade DWST piping. The building was an independent structure with outer aluminum siding, inner sheetrock walls, slightly tapered sheet metal roof, asphalt floor, a building exhaust ventilation and a concrete support base beneath the pump. No significant radiological events were identified regarding this building.

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SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD The 115 kV Switchyard (#111) was situated outside the RCA just south of the Containment building. This area included two Station Service Transformers (# 204 &

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

The DWST and CST were also designated as Tank "TK-25-lA" and Tank "TK IB" respectively. The DWST and the CST was 'located to the southwest of the Containment Building in the northwest corner of the 115 kV Switchyard. Even though these tanks were designed to normally contain only non-radioactive water, there was a documented history of radiologically contaminated water occasionally being introduced into these systems. Events that may have contributed to the introduction of contaminated water into these tanks were steam generator tube failures and misalignment of valves. Historical surveys performed in the vicinity of these tanks did not indicate any significant levels of radioactive contamination. During April 1999, a shallow monitoring well and a deep monitoring well on the west side of the DWST produced samples that showed positive results for tritium.

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 9312-0003. 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;

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

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

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

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SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD 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 and FW/STM Penetration Building was then demolished to grade. The Electric Shutdown Auxiliary Feed Pump House, the DWST, the CST and the concrete base pads for all three (3) structures were completely demolished and removed. No above grade structures currently reside within Survey Unit 9312-0003.

Outside of the structures, remediation was performed on the soils surrounding the PAB. The excavation around the PAB footing was designated as Excavation #2; the excavation around the FW/STM Penetration Building was designated as Excavation

  1. 6 and the excavation adjacent to the Containment Building in the east section of the survey unit was designated as Excavation #3. Remediation was successfully performed in these areas by the excavation of all affected soils to the beginning of the saturated zone or to bedrock. As with other excavations, the area was backfilled following the performance of a radiological assessment.

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

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

Minimum Value: 1.32E-02 -5.OOE-02 Maximum Value: 1.70E+00 1.43E+00 Mean: 2.38E-01 1.08E-01 Median: 1.65E-01 1.46E-02 Standard Deviation: 3.1OE-01 2.76E-01 Revision 0 6

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SURVEY UNIT 9312-0003 RELEASE RECORD 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 March 2007 to assess the physical condition of the survey unit, evaluate access points, travel paths and identify potentially hazardous conditions.

This survey area is affected by existing and future groundwater (reference CY memo ISC 06-024) which will be a source of dose from residual radioactivity, as discussed in Section 3 under the Data Quality Objectives.

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

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SURVEY UNIT 9312-0003 RELEASE RECORD

3. DATA QUALITY OBJECTIVES (DQO)

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

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

The primary objective of the FSS plan was to demonstrate that the level of residual radioactivity in Survey Unit 9312-0003 did not exceed the release criteria specified in the LTP and that the potential dose from residual radioactivity is As Low As Reasonably Achievable (ALARA).

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

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

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

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

Equation 1 HTotaI =H Soil + HExistingGW + HFutureGW Revision 0 8

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD The total dose under the LTP criteria is twenty-five (25) mrem/yr Total Effective Dose Equivalent (TEDE) from all three (3) components. The allowable total dose under the Connecticut Department of Environmental Protection (CTDEP) radiological remediation standard for CY is nineteen (19) mrem/yr TEDE. To satisfy both the LTP and CY CTDEP criteria, the dose from soil must be reduced when using the existing and future groundwater dose values discussed above.

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

This survey unit is considered impacted by future groundwater radioactive contamination, as there are underground foundations containing residual radioactive material within the groundwater saturated zone in the area (reference CY memo ISC 06-024). The dose contribution from future groundwater, the third dose component, is bounded by two (2) mrem/yr TEDE.

Equation 2 19 mrem/yrTotal = 15 mrem/yrsoil + 2 mrem/yrExisting GW+/- 2 mrem/yrFutureGW The allowable dose for soil in this survey unit is fifteen (15) mrem/yr TEDE as shown by Equation 2 above. The concentration of residual radioactivity resulting in fifteen (15) mrem/yr TEDE is designated as the Operational DCGL (DCGLop), and has been established for the radionuclides of concern as provided in Table 3.

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SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 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 1.10E+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-I 08m 7.14E+00 4.28E+00 2.86E-01 Cs-134 4.67E+00 2.80E+00 1.87E-01 Cs-137 7.91E+00 4.75E+00 3.16E-01 Eu-152 1.01E+01 6.06E+00 4.04E-01 Eu-154 9.29E+00 5.57E+00 3.72E-01 Eu- 155 3.92E+02 2.35E+02 1.57E+01 Pu-238 2.96E+01 1.78E+01 1.18E+00 Pu-239/240 2.67E+01 1.60E+01 1.07E+00 Am-241 (5) 2.58E+01 1.55E+01 1.03E+00 Pu-241 8.70E+02 5.22E+02 3.48E+01 Cm-243/244 2.90E+O 1 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) mremryr 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 10

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 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 9312-0003 for FSS.

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

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

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

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

The DQO process determined that Cs-137, Co-60 and Sr-90 would be the radionuclides of concern in Survey Unit 9312-0003 (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.

Revision 0 I1I

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 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/a) in the range of 1 and 3.

The resulting adjusted relative shift was 2.0. A Prospective Power Curve was generated using COMPASS, a software package developed under the sponsorship of the United States Nuclear Regulatory Commission (USNRC) for implementation of the MARSSIM in support of the decommissioning license termination rule (10CFR20, Subpart E). The result of the COMPASS computer run showed adequate power for the survey design. The survey design specified fifteen (15) surface soil samples for non-parametric statistical testing. Based upon a review of the historical information and Characterization Survey data, three (3) judgmental samples were taken in this survey area. One (1) judgmental surface soil sample was taken at the east quadrant of the survey unit in the vicinity of former Excavation 3, one (1) judgmental sample was taken in the northwest comer 6f the survey unit in the vicinity of the PAB excavation and one (1) judgmental sample was taken in the vicinity of the former location of the DWST.

The grid pattern and locations of the soil samples were determined using Visual Sample Plan (VSP) in accordance with Procedure RPM 5.1-14, "Identifying, and Marking Surface Sample Locations for Final Status Survey." Visual Sample Plan was created by Pacific Northwest National Laboratory (PNNL) for the United States Department of Energy. A systematic triangular grid pattern with a random starting point was selected for sample design, which is appropriate for a Class 1 area.

Sample locations were identified using AutoCAD-LT, a commercially available plotting software package with coordinates consistent with the Connecticut State Plane System. These coordinates were integrated with a GPS to locate sample locations in the field. Sample Measurement Locations for the design are listed with the GPS coordinates in Table 4.

9312-0003-001F 236545.81 668643.81 9312-0003-002F 236545.81 668678.94 9312-0003-003F 236515.39 668661.38 9312-0003-004F 236515.39 668696.51 9312-0003-005F 236515.39 668801.90 9312-0003-006F 236515.39 668837.03 Revision 0 12

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SURVEY UNIT 9312-0003 RELEASE RECORD 9312-0003-007F 236484.96 668678.94 9312-0003-008F 236484.96 668714.07 9312-0003-009F 236484.96 668749:21 9312-0003-OIOF 236484.96 668784.34 9312-0003-01IF 236484.96 668819.47 9312-0003-012F 236454.54 668731.64 9312-0003-013F 236454.54 668766.77 9312-0003-014F 236454.54 668801.90.

9312-0003-015F 236424.11 668784.34 9312-0003-016B(l) 236553.97 668630.24 9312-0003-017B(') 236522.69 668819.13 9312-0003-018B(') 236492.21 668744.15 (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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SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD Survey Unit Land Area 1,486 m2 Based on AutoCAD-LT Type 1 and Type 2 errors were 18 0.05, sigma was 0.14 pCi/g, the Number of Measurements (15 systematic grid) LBGR was set at 0.73 to achieve a (3 Judgmental) Relative Shift in the range of 1 and 3

Grid Spacing 10.73 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 2.29 pCi/g Co-60 UP criteria for a Class 1 survey 2.29 ~i/g o-60 unit Scan Survey Area Approximately The LTP requires 100% area Coverage 100% of the area coverage for Class 1 survey units An instrument response greater than the Scan Scan Investigation Level MDC(DCGLEMC) Per BCY-HP-0239 Revision #0 of 2,000 cpm plus ambient background (1) The allowable dose for soil in this survey unit is fifteen (15) mrem/yr TEDE as the bounding dose from existing and future groundwater has been established based on field data (reference CY memo ISC 06-024)

5. SURVEY IMPLEMENTATION Final status survey field activities were conducted under a Final Status Survey Plan (FSSP). The FSSP package included a detailed survey plan, job safety analysis, job planning checklist and related procedures for reference. Daily briefings were conducted to discuss the expectations for job performance and the safety aspects of the survey. The "Daily Survey Journal" was used to document field activities and other information pertaining to the FSS.

A single scan area was established that constituted approximately 100% of the surface area of Survey Unit 9312-0003. 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 7,770 counts per minute (cpm) up to 12,500 cpm.

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SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD The scan area was established and scanned for elevated readings (see Attachment 2 for all scan results). Scanning was performed with an Eberline E-600 using a SPA-3 sodium iodide detector. The E-600 was operated in the rate-meter mode and used with audio response. The probe was positioned as close to the ground as possible and was moved at a scan speed of about 0.5 meters per second. Approximately 100% of the survey unit was scanned.

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

Eighteen (18) surface soil samples were collected and packaged in accordance with Haddam Neck Plant (HNP) Procedure RPM 5.1-3, "Collection of Sample Mediafor FinalStatus 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 (9312-0003-002F, 9312-0003-012F and 9312-0003-015F) were randomly selected for HTD radionuclide analysis.

The implementation of survey specific quality control measures included the collection of one (1) sample (9312-0003-009F) for "split sample" analysis.

6. SURVEY RESULTS All field survey activities were conducted between March 27, 2007 and March 30, 2007.

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

1 10.30 10.99 NO 2 10.80 12.40 NO 3 9.19 11.44 NO 4 9.88 11.61 NO Revision 0 15

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SURVEY UNIT 9312-0003 RELEASE RECORD 5 10.70 10.95 NO 6 12.30 14.50 NO 7 10.50 12.90 NO 8 8.47 10.79 NO 9 10.30 11.73 NO 10 10.50 11.75 NO 11 11.20 12.10 NO 12 10.40 12.10 NO 13 10.20 11.22 NO 14 10.90 11.68 NO 15 8.78 10.32 NO 16(2) 10.60 11.80 NO 17(2) 10.30 12.90 NO 18(2) 10.20 11.27 NO (1) The action level is based on a measurement in accordance with the FSS plan (MDC(DCGLEMC) of 2,000 cpm plus ambient background)

(2) Indicates judgmental sample locations (biased)

The scan area, that comprised approximately 100% of the total surface area for the survey unit, was scanned for elevated radiation levels. The area was scanned in accordance with the FSS plan on March 30, 2007.

Thirty-eight (38) 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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SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD 1 thru 10 10.60 11.20 None None I Ithru 20 11.10 12.10 None None 21 thru 30 11.10 11.64 None None 31 thru 38 11.70 12.20 None None (1) The action level is based on a measurement in accordance with the FSS plan (MDC(DCGLEMc) of 2,000 cpm plus ambient background)

The off-site laboratory employed for the radiological analyses of samples was General Engineering Laboratories, LLC. The laboratory analyzed the fifteen (15) samples collected for non-parametric statistical testing, the associated field splits and the three (3) judgmental samples using gamma spectroscopy. Gamma spectroscopy analysis was performed to the required MDCs. Gamma spectroscopy results identified some radionuclides meeting the accepted criteria for detection (i.e., a result greater than two (2) standard deviations uncertainty). However, no gamma emitting radionuclide was reported in any concentration greater than its respective MDC.

Cs-137 and Co-60 were not positively identified in any of the fifteen (15) samples collected for non-parametric statistical testing. A summary of the reported Cs-137 values for the fifteen (15) samples collected for non-parametric statistical testing are provided in Table 8.

9312-0003-001F -6.38E-02 9312-0003-002F -1.90E-03 9312-0003-003F -1.28E-02 9312-0003-004F 1.19E-02 9312-0003-005F -9.37E-03 9312-0003-006F -3.58E-03 9312-0003-007F -1.38E-02 Revision 0 17

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD 9312-0003-008F 2.25E-02 9312-0003-009F -8.06E-04 9312-0003-OIOF 1.21E-02 9312-0003-01 IF -3.38E-02 9312-0003-012F -6.57E-02 9312-0003-013F -6.68E-02 9312-0003-014F -5.37E-02 9312-0003-015F -3.55E-02 (1) The Operational DCGL from Table 3 is 4.75 pCi/g for Cs-137 to achieve fifteen (15) mrem/yr TEDE In addition to Cs-137 and Co-60, Sr-90 was also identified during the DQO process as a radionuclide of concern. Subsequently, all samples were subjected to analysis by gas proportional counting for Sr-90. All analyses met the required minimum MDC.

Sr-90 was positively identified (i.e., a result greater than two (2) standard deviations uncertainty) in only one (1) of the fifteen (15) samples collected for non-parametric statistical testing. Sr-90 was observed in sample 9312-0003-007F at a concentration of 3.65E-02 pCi/g or 4.1% of the Operational DCGL for Sr-90 of 9.30E-0 1 pCi/g.

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. No other HTD radionuclides were detected.

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

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

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

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SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD Cs-137 was not detected in sufficient quantity in the field split results at location 9312-0003-009FS to evaluate in accordance with procedure. Evaluation using the reported results for naturally occurring K-40 resulted in acceptable agreement between the field-split results at this location.

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

8. INVESTIGATIONS AND RESULTS There were no investigations performed for this survey
9. REMEDIATION AND RESULTS Radiological remedial action as described by MARSSIM Section 5.4 was performed in this survey unit prior to FSS. All excavations were characterized and backfilled prior to performing FSS. In the area where remediation occurred, the ground area is comprised of barren dirt with no vegetation, and the soils have been graded relatively flat to the corresponding elevation of the adjacent survey units. The results for Cs-137 following remediation were well below the Operational DCGL provided in Table 3. Health Physics TSD BCY-HP-0078, "ALARA Evaluation of Soil Remediation in Support of Final Status Survey, " determined that remediation beyond that required to meet the release criteria is unnecessary and that the remaining residual radioactivity in soil was ALARA.
10. CHANGES FROM THE FINAL STATUS SURVEY PLAN Cs-137 and Co-60 were not positively detected in any of the samples collected for non-parametric statistical testing. Subsequently, a statistical analysis of the data sets for any of these radionuclides would provide no useful information.
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.

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SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD Therefore, the survey unit meets the unrestricted release criteria with adequate power as required by the DQOs. The basic statistical quantities for the statistical sample population are provided below in Table 9.

DCGLop: 4.75E+00 2.29E+00 9.30E-01 Minimum Value: -6.68E-02 -2.21E-02 -1.38E-02 Maximum Value: 2.25E-02 1.78E-02 3.65E-02 Mean: -2.1OE-02 1.61E-03 3.46E-03 Median: -1.28E-02 4.24E-03 1.08E-03 Standard Deviation: 3.02E-02 1.1OE-02 1.30E-02 Cs-137 and Co-60 were not positively detected in any of the samples collected for non-parametric statistical testing. Sr-90 was positively identified in only one (1) of the samples collected for non-parametric statistical testing. Subsequently, a statistical analysis of the data sets for any of these radionuclides would provide no useful information. All data, assessments, and graphical representations are provided in Attachment 4.

12. ANOMALIES No anomalies were noted.
13. CONCLUSION Survey Unit 9312-0003 has met the final DQOs of the FSS plan. The ALARA criteria for soils as specified in Chapter 4 of the LTP were achieved. Elevated Measurement Comparison was not required.

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

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

The dose contribution from soil is 0.07 mrem/yr TEDE based on the average concentration of the samples used for non-parametric statistical sampling.

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

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SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD This survey unit is considered impacted by future groundwater radioactive contamination, as there are underground foundations containing residual radioactive material within the groundwater saturated zone in the area (reference CY memo ISC 06-024). The dose contribution from future groundwater, the third dose component, is bounded by two (2) mrem/yr TEDE.

The average total dose from residual radioactivity in this survey unit, including exposures from the three (3) components as described in Section 3, that is, residual radioactivity in soil, existing groundwater radioactivity, and future groundwater radioactivity from the burial of concrete foundations or footings from site buildings containing residual radioactivity will not exceed 4.07 mrem/yr TEDE. Therefore, Survey Unit 9312-0003 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 21

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD ATTACHMENT 1 (FIGURES)

Revision 0

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,)0.012 0 Sample Lon JU40 015SaMs f-r 9312-000J I Alarm E-600 SIN Probe SIN Level Level 9312-03-BL-00-01-0 3/27/2007 8:33:00 8.99E+03 1107 1007 9312-03-SL-00-01-0 3/27/2007 8:34:00 1.03E+04 1.10E+04 1107 1007 9312-03-BL-00-02-0 3/27/2007 8:35:00 1.04E+04 1107 1007 9312-03-SL-00-02-0 3/27/2007 8:36:00 1.08E+04 1.24E+04 1107 1007 9312-03-BL-00-03-0 3/27/2007 8:37:00 9.44E+03 1107 1007 9312-03-SL-00-03-0 3/27/2007 8:37:00 9.19E+03 1.14E+04 1107 1007 9312-03-BL-00-04-0 3/27/2007 8:38:00 9.61 E+03 1107 1007 9312-03-SL-00-04-0 3/27/2007 8:39:00 9.88E+03 1.16E+04 1107 1007 9312-03-BL-00-05-0 3/27/2007 8:40:00 8.95E+03 1107 1007 9312-03-SL-00-05-0 3/27/2007 8:41:00 1.07E+04 1.1OE+04 1107 1007 9312-03-BL-00-06-0 3/27/2007 8:43:00 1.25E+04 1107 1007 9312-03-SL-00-06-0 3/27/2007 8:44:00 1.23E+04 1.45E+04 1107 1007 9312-03-BL-00-07-0 3/27/2007 8:46:00 1.09E+04 1107 1007 9312-03-SL-00-07-0 3/27/2007 8:46:00 1.05E+04 1.29E+04 1107 1007 9312-03-BL-00-08-0 3/27/2007 8:47:00 8.79E+03 1107 1007 9312-03-SL-00-08-0 3/27/2007 8:48:00 8.47E+03 1.08E+04 1107 1007 9312-03-BL-00-09-0 3/27/2007 8:49:00 9.73E+03 1107 1007 9312-03-SL-00-09-0 3/27/2007 8:49:00 1.03E+04 1.17E+04 1107 1007 9312-03-BL-00-1 0-0 3/27/2007 8:50:00 9.75E+03 1107 1007 9312-03-SL-00-10-0 3/27/2007 8:50:00 1.05E+04 1.18E+04 1107 1007 9312-03-BL-00-11-0 3/27/2007 8:52:00 1.01 E+04 1107 1007 9312-03-SL-00-11-0 3/27/2007 8:52:00 1.12E+04 1.21E+04 1107 1007 9312-03-BL-00-1 2-0 3/27/2007 8:53:00 1.01 E+04 1107 1007 9312-03-SL-00-12-0 3/27/2007 8:54:00 1.04E+04 1.21E+04 1107 1007 9312-03-BL-00-1 3-0 3/27/2007 8:54:00 9.22E+03 1107 1007 9312-03-SL-00-13-0 3/27/2007 8:55:00 1.02E+04 1.12E+04 1107 1007 9312-03-BL-00-14-0 3/27/2007 8:56:00 9.68E+03 1107 1007 9312-03-SL-00-14-0 3/27/2007 8:56:00 1.09E+04 1.17E+04 1107 1007 9312-03-BL-00-1 5-0 3/27/2007 8:57:00 8.32E+03 1107 1007 9312-03-SL-00-1 5-0 3/27/2007 8:58:00 8.78E+03 1.03E+04 1107 1007 9312-03-BL-00-1 6-0 3/27/2007 9:00:00 9.80E+03 1107 1007 9312-03-SL-00-16-0 3/27/2007 9:00:00 1.06E+04 1.18E+04 1107 1007 9312-03-BL-00-1 7-0 3/27/2007 9:02:00 1.09E+04 1107 1007 9312-03-SL-00-17-0 3/27/2007 9:03:00 1.03E+04 1.29E+04 1107 1007 9312-03-BL-00-1 8-0 3/27/2007 9:04:00 9.27E+03 1107 1007 9312-03-SL-00-18-0 3/27/2007 9:04:00 1.02E+04 1.13E+04 1107 1007 5/2/2007 Page 1 of I

Survey Unit 9312-0003 Scan Survey Results Scan Strip Scans Survey Location Log Date Log Time Reading Alarm >Alarm E-600 SIN Probe SIN Level Level 9312-03-BC-00-01-0 3/30/2007 7:34:00 1.04E+04 1107 1007 9312-03-SC-00-01-0 3/30/2007 7:38:00 1.02E+04 1.24E+04 1107 1007 9312-03-BC-00-02-0 3/30/2007 7:38:00 9.33E+03 1107 1007 9312-03-SC-00-02-0 3/30/2007 7:43:00 9.84E+03 1.13E+04 1107 1007 9312-03-BC-00-03-0 3/30/2007 7:43:00 9.28E+03 1107 1007 9312-03-SC-00-03-0 3/30/2007 7:48:00 1.03E+04 1.13E+04 1107 1007 9312-03-BC-00-04-0 3/30/2007 7:48:00 9.15E+03 1107 1007 9312-03-SC-00-04-0 3/30/2007 7:53:00 9.86E+03 1.12E+04 11Q7 1007 9312-03-BC-00-05-0 3/30/2007 7:54:00 9.20E+03 1107 1007 9312-03-SC-00-05-0 3/30/2007 7:57:00 1.06E+04 1.12E+04 1107 1007 9312-03-BC-00-06-0 3/30/2007 7:58:00 9.42E+03 1107 1007 9312-03-SC-00-06-0 3/30/2007 8:03:00 9.88E+03 1.14E+04 1107 1007 9312-03-BC-00-07-0 3/30/2007 8:04:00 9.30E+03 1107 1007 9312-03-SC-00-07-0 3/30/2007 8:07:00 9.27E+03 1.13E+04 1107 1007 9312-03-BC-00-08-0 3/30/2007 8:07:00 8.88E+03 1107 1007 9312-03-SC-00-08-0 3/30/2007 8:10:00 1.04E+04 1.09E+04 1107 1007 9312-03-BC-00-09-0 3/30/2007 7:33:00 9.03E+03 1111 1004 9312-03-SC-00-09-0 3/30/2007 7:45:00 8.04E+03 1.10E+04 1111 1004 9312-03-BC-00-1 0-0 3/30/2007 7:47:00 8.21 E+03 1111 1004 9312-03-SC-00-10-0 3/30/2007 7:53:00 8.52E+03 1.02E+04 1111 1004 9312-03-BC-00-11-0 3/30/2007 7:55:00 8.42E+03 1111 1004 9312-03-SC-00-11-0 3/30/2007 8:00:00 8.28E+03 1.04E+04 1111 1004 9312-03-BC-00-1 2-0 3/30/2007 8:01:00 8.88E+03 1111 1004 9312-03-SC-00-12-0 3/30/2007 8:06:00 8.87E+03 1.09E+04 1111 1004 9312-03-BC-00-1 3-0 3/30/2007 8:07:00 8.89E+03 1111 1004 9312-03-SC-00-13-0 3/30/2007 8:12:00 8.45E+03 1.09E+04 1111 1004 9312-03-BC-00-14-0 3/30/2007 8:13:00 7.78E+03 1111 1004 9312-03-SC-00-14-0 3/30/2007 8:17:00 8.63E+03 9.78E+03 1111 1004 9312-03-BC-00-1 5-0 3/30/2007 8:18:00 8.23E+03 1111 1004 9312-03-SC-00-15-0 3/30/2007 8:23:00 7.38E+03 1.02E+04 1111 1004 9312-03-BC-00-16-0 3/30/2007 8:23:00 7.77E+03 1111 1004 9312-03-SC-00-16-0 3/30/2007 8:28:00 8.84E+03 9.77E+03 1111 1004 9312-03-BC-00-1 7-0 3/30/2007 9:46:00 1.05E+04 1107 1007 9312-03-SC-00-17-0 3/30/2007 9:50:00 1.OOE+04 1.25E+04 1107 1007 9312-03-BC-00-1 8-0 3/30/2007 9:51:00 9.78E+03 1107 1007 9312-03-SC-00-18-0 3/30/2007 9:53:00 1.08E+04 1.18E+04 1107 1007 9312-03-BC-00-1 9-0 3/30/2007 9:54:00 9.84E+03 1107 1007 9312-03-SC-00-19-0 3/30/2007 9:56:00 1.01E+04 1.18E+04 1107 1007 9312-03-BC-00-20-0 3/30/2007 9:57:00 1.01E+04 1107 1007 9312-03-SC-00-20-0 3/30/2007 10:00:00 1.11 E+04 1.21 E+04 1107 1007 9312-03-BC-00-21 -0 3/30/2007 10:01:00 9.64E+03 1107 1007 9312-03-SC-00-21-0 3/30/2007 10:04:00 1.11 E+04 1.16E+04 1107 1007 9312-03-BC-00-22-0 3/30/2007 10:04:00 9.81 E+03 1107 1007 9312-03-SC-00-22-0 3/30/2007 10:08:00 1.04E+04 1.18E+04 1107 1007 5/212007 Page 1 of 2

Survey Unit 9312-0003 Scan Survey Results Scan Strip Scans 9312-03-BC-00-23-0 3/30/2007 10:10:00 9.39E+03 1107 1007 9312-03-SC-00-23-0 3/30/2007 10:12:00 9.76E+03 1.14E+04 1107 1007 9312-03-BC-00-24-0 3/30/2007 10:13:00 1.OOE+04 1107 1007 9312-03-SC-00-24-0 3/30/2007 10:16:00 1.03E+04 1.20E+04 1107 1007 9312-03-BC-00-25-0 3/30/2007 10:17:00 9.12E+03 1107 1007 9312-03-SC-00-25-0 3/30/2007 10:20:00 1.03E+04 1.11E+04 1107 1007 9312-03-BC-00-26-0 3/30/2007 10:21:00 9.46E+03 1107 1007 9312-03-SC-00-26-0 3/30/2007 10:26:00 1.09E+04 1.15E+04 1107 1007 9312-03-BC-00-27-0 3/30/2007 9:46:00 8.59E+03 1111 1004 9312-03-SC-00-27-0 3/30/2007 9:49:00 1.04E+04 1.06E+04 1111 1004 9312-03-BC-00-28-0 3/30/2007 9:50:00 1.07E+04 1111 1004 9312-03-SC-00-28-0 3/30/2007 9:52:00 1.03E+04 1.27E+04 1111 1004 9312-03-BC-00-29-0 3/30/2007 9:53:00 9.95E+03 1111 1004 9312-03-SC-00-29-0 3/30/2007 9:56:00 1.04E+04 1.20E+04 1111 1004 9312-03-BC-00-30-0 3/30/2007 9:57:00 1.04E+04 1111 1004 9312-03-SC-00-30-0 3/30/2007 9:59:00 9.95E+03 1.24E+04 1111 1004 9312-03-BC-00-31-0 3/30/2007 10:01:00 1.01 E+04 1111 1004 9312-03-SC-00-31-0 3/30/2007 10:03:00 1.15E+04 1.21E+04 1111 1004 9312-03-BC-00-32-0 3/30/2007 10:03:00 1.06E+04 1111 1004 9312-03-SC-00-32-0 3/30/2007 10:05:00 1.05E+04 1.26E+04 1111 1004 9312-03-BC-00-33-0 3/30/2007 10:09:00 8.15E+03 1111 1004 9312-03-SC-00-33-0 3/30/2007 10:14:00 9.43E+03 1.02E+04 1111 1004 9312-03-BC-00-34-0 3/30/2007 10:15:00 1.02E+04 1111 1004 9312-03-SC-00-34-0 3/30/2007 10:16:00 1.17E+04 1.22E+04 1111 1004 9312-03-BC-00-35-0 3/30/2007 10:17:00 1.09E+04 1111 1004 9312-03-SC-00-35-0 3/30/2007 10:19:00 9.16E+03 1.29E+04 1111 1004 9312-03-BC-00-36-0 3/30/2007 10:20:00 9.22E+03 1111 1004 9312-03-SC-00-36-0 3/30/2007 10:23:00 8.57E+03 1.12E+04 1111 1004 9312-03-BC-00-37-0 3/30/2007 10:25:00 7.89E+03 1111 1004 9312-03-SC-00-37-0 3/30/2007 10:27:00 8.97E+03 9.89E+03 1111 1004 9312-03-BC-00-38-0 3/30/2007 10:28:00 9.38E+03 1111 1004 9312-03-SC-00-38-0 3/30/2007 10:29:00 9.94E+03 1.14E+04 1111 1004 5/2/2007 Page 2 of 2

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD ATTACHMENT 3 (LABORATORY DATA)

Revision 0

General Narrative 1

General Narrative for Connecticut Yankee Atomic Power Co.

Work Order: 183255 SDG: MSR#07-0131 April 04, 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 29, 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 183255001 9312-0003-001 F 183255002 9312-0003-002F 183255003 9312-0003-003F 183255004 9312-0003-004F 183255005 9312-0003-005F 183255006 9312-0003-006F 183255007 9312-0003-007F 183255008 9312-0003-008F 183255009 9312-0003-009F 183255010 9312-0003-009FS 183255011 9312-0003-OIOF 183255012 9312-0003-01 IF 183255013 9312-0003-012F 183255014 93.12-0003-013F 183255015 9312-0003-014F 183255016 9312-0003-015F 183255017 9312-0003-016B 183255018 9312-0003-017B 183255019 9312-0003-018B Items of Note There are no items to note.

GEL Laboratories LLc P0Box30712 Chauleston, SC29417 2040 Savage Road Charleston, SC 29407 P 843.556.8171 F843.766.1178 www.gol.com 2

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

Analytical Request Sixteen soil samples were analyzed for FSSGAM and Strontium-90. Three soil 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 Laboratories LLc P0 Box 30712 Charleston, SC 29417 2040 Savage Road Charleston, SC 29407 P 843.556.8171 F843.766.1178 www.gol.com 3

List of current GEL Certifications as of 04 April 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 270 Massachusetts M-SC012 Michigan 9903 Nevada SC12 New Jersey SC002 New Mexico FL NELAP E87156 New York 11501 North Carolina 233 North Carolina Drinking W 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania 68-00485 South Carolina 10120001/10585001/10120002 Tennessee 02934 Texas TX213-2006A Texas NELAP 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 362 Injun Hollow Road, East Hampton. CT 06424 No. 20,07-00089 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: D 30 D. D 15 D. N 7 D.

Other: _2 Sample Designation Date Time Comment, Preservation Lab Sample ID O306G 90 9312-0003-001F 3/27/07 0836 TS G BP X 9312-0003-002F 3/27/07 0838 TS G BP X 9312-0003-003F 3/27/07 0840 TS G BP X 9312-0003-004F 3/27/07 0841 TS G BP X 9312-0003-005F 3/27/07 0842 TS G BP X 9312-0003-006F 3/27/07 0844 TS G BP X 9312-0003-007F 3/27/07 0847 TS G BP X___________

9312-0003-008F 3/27/07 0849 TS G BP X "

9312-0003-009F 3/27/07 0850 TS G BP X 9312-0003-009FS 3/27/07 0850 TS G BP X 9312-0003-OIOF 3/27/07 0851 TS G BP X NOTES: PO #: 002332 MSR #: 07-0131 [ LTP QA F1 Radwaste QA D Non QA Samples Shipped Via: Internal Container M Fed Ex Temp.: _ Deg. C El UPS F] Hand Custody Sealed?

1) Relinquished f *ajjt," Date/Time 2) Ren-ved By Date/Time Custody Seal Intact?

G/2.~~7! c" 3oS DOther F-1

3) Relinquished By Date/Time 4) R ived-3y ate!Time BillofLading,# Y N:

) RBill of Lading #

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

Connecticut Yankee Atomic Power Company Chain of Custody Form 362 Injun Hollow Road, East Hampton, CT 06424 No. 2007-00090 8 60 -267-2 5 56 L aU en l Project Name: Haddam Neck Decommissioning 1 1Analyses 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 DD[15 D. Z 7 D.

Other: . *,

Sample Designation Date Time 0 j Comment. Preservation Lab Sample ID 9312-0003-OIIF 3/27/07 .0853 TS G BP X 9312-0003-012F 3/27/07 0855 TS G BP X 9312-0003-013F 3/27/07 0856 TS G BP X 9312-0003-014F 3/27/07 0857 TS G BP X 9312-0003-015F 3/27/07 0900 TS G BP X 9312-0003-016B 3/27/07 0903 TS G BP X 9312-0003-017B 3/27/07 0903 TS G BP X 9312-0003-018B 3/27/07 0905 TS G BP X NOTES: P0 #: 002332 MSR #: 07-0131 M LTP QA ED Radwaste QA D Non QA Samples Shipped Via: Internal Container Z Fed Ex Temp.:__ Deg. C D UPS Fl. Hand Custody Sealed?

1) Reli 9 u 4C d By Date/Time 2) R ceived By . Date/Time Custody Seal Intact?

3b-/0g/y /-f'3 . 2 ef 7 30 E] Other

3) Relinquisie'd By Date/Time 4) 0ceived By DatelTime BillofLading Y'L NiL Bill of LRading #
5) Relinquishe~d By Date/Time 6) Received By Date/Time
  • Connecticut Yankee ~yvAAII Statement of Work for AnalyticaltLab Services .C-sCy-IserOW-o Figure 1. Sample Check-in List 5t25/7id 9,30 Date/Time Received:

,;V' I>' -- C OL.F%-jrr

[73

, [

Work Order Number: I4 ShippingContainerlD: w S-se -EI. 5 9 Chain of Custody# a,4-

1. CustodySeals od shipping container intac -Yes ~NO[
2. Custody Seals.dated andsigned? Yes
3. Chain-of-Custodyrecord psent?

Yes

4. Cooler temperature 5e e., "*I]I I

5.. Vermiculite/packing materials is: Wet ( J-Dry, 6:" -. Number ofsamplcs inLshipping container.

.79

7. Sample holding times exceeded? Yes [ ] No p
8. Samples have.,

.kltape__-__hazard labels

..XLcustody seals k-Žappropriate sample lbl

9. Samples are:

good condition leaking brokenhave air bubbles

10. Were any anomalies identified in sample receipt? Yes[JNo~

11..*

.Description of anomalies.(include sample numbers):

Samplep Custodian:Labo""to"y Date I

-.- / . I Telephoned to:_______________ lyV 8

SAMPLE RECEIPT & REVIEW FORM PM use only Client:  % V SDGIARCOC/Work. Order: I 'V-(3 1 (. 4 l--z-. '

Date Received: PM(A) Review (ensure non-conforinins items are resolved prior to signing):

Received By:

Saple Receipt :Criteria * . Comments/Qualifiers (Required for Non-Conforming.Items)

Shipping c iners received Circle Applicable: sealsbroken damaged container leaking container other (describe) intact and seale Samples requiring, col Circle Coolant # ice bags blue ice dry ice* none other describe) 2 preservation within (4 +/-2.-

_Record preservation method. _

3 Chain of custody documents included with shipment?

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

1__

Samples requiring chemical Sample iy's, containersaffected and observed pHl:

.preservation at proper pH?

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

6 (defined as < 6mm bubble)?

Are Encore containers present?

7 (If yes, immediately deliver to VOA laboratory)

Samples received within holding Id's and tests affected:

8.

time?

Sample ID's on COC match ID'S S Sample ID's and containers affect 9on bottles?

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

S

& time on bottles?

11 Number of containers received SSample ID's affected:

match number indicated on COC?

COC form is properly signed in 12 relinquished/received sections?

Air Bill ,Tracking #'s, & " 7e.c7 Z 1'7[5 620-- "2 75 i1 5'Z G*4Si *4- -*

14 Additional Comments 7q 14 5I S7N 8iGo- oh 71 7' il 79 SS'33-"

7 4 7, S70 55 3-Z

'a RSO RAD Receipt #

S d H d I! *If > x2 area background is observed on samples identified as "non-Suspected Hazard Information ua ' regulated/non-radioactive", contact the Radiation Safety group for further

  • investigation.

A lRadiological Classification? xI ýCounts Observed*: Z,5Cg"'f-B PCB Regulated?

Shipped as DOTHazardous "

C Material? If yes, contact Waste lazard Class Shipped:

JN#:

Manager or ESH Manager.

D iRegulated as a Foreign Soil? ¢,1 PM (or PMA) review of Hazard classification: q j/j Initials QP"c Y Date:

D 1A .7-q V61

SAMPLE RECEIPT & REVIEW FORM CONTINUATION FORM -

\IA.~L -

Y'---- I ~./

Client: N W#

- Date Received: Irage of Zo oo I o

&0J7- 600'2) zool-7, Iooz 2Zoo,7- oo 5,7 10

Data Review Qualifier Definitions 11

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 B*x 30712 Charleston, SC 29417 2040 Savage Road Charleston, SC 29407 P 843.556.8171 F 843.756.1178 www.gel.com 12

RADIOLOGICAL ANALYSIS 1"3

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

Work Order 183255 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: 621107 Prep Batch Number: 621104 Dry Soil Prep GL-RAD-A-021 Batch Number: 621103 Sample ID Client ID 183255002 9312-0003-002F 183255013 9312-0003-012F 183255016 9312-0003-015F 1201305240 Method Blank (MB) 1201305241 183245006(9312-0001-005F) Sample Duplicate (DUP) 1201305242 183245006(9312-0001-005F) Matrix Spike (MS) 1201305243 Laboratory Control Sample (LCS)

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

Calibration Information:

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

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

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

14

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: 183245006 (9312-0001-005F).

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

Technical Information:

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

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

Sample Re-prep/Re-analysis Samples 183255013 (9312-0003-012F) and 183255016 (9312-0003-015F) were recounted due to a suspected false positive.

Miscellaneous Information:

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

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 15

Product: Liquid Scint Pu241, 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: 622105 Prep Batch Number: 621104 Dry Soil Prep GL-RAD-A-021 Batch Number: 621103 Sample ID Client ID 183255002 9312-0003-002F 183255013 9312-0003-012F 183255016 9312-0003-015F 1201307488 Method Blank (MB) 1201307489 183245006(9312-0001-005F) Sample Duplicate (DUP) 1201307490 183245006(9312-0001-005F) Matrix Spike (MS) 1201307491 Laboratory Control Sample (LCS)

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

Calibration Information:

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

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

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

Quality Control (Q0 Information:

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

Designated QC The following sample was used for QC: 183245006 (9312-0001-005F).

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

Technical Information:

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

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

Sample Re-prep/Re-analysis Samples 183255002 (9312-0003-002F), 183255013 (9312-0003-012F) and 183255016 (9312-0003-015F) 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.

Gualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Alphaspec Pu, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu- I1-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 622351 Prep Batch Number: 621104 Dry Soil Prep GL-RAD-A-021 Batch Number: 621103 17

Sample ID Client ID 183255002 9312-0003-002F 183255013 9312-0003-012F 183255016 9312-0003-015F 1201308034 Method Blank (MB) 1201308035 183245006(9312-0001-005F) Sample Duplicate (DUP) 1201308036 183245006(9312-0001-005F) Matrix Spike (MS) 1201308037 Laboratory Control Sample (LCS)

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

Calibration Information:

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

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

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

Quality Control (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: 183245006 (9312-0001-005F).

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

Technical Information:

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

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

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

Miscellaneous Information:

NCR Documentation 18

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

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

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

Gualifier information Manual qualifiers were not required.

Method/Analysis Information 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: 621154 Prep Batch Number: 621103 19

Sample ID Client ID 183255001 9312-0003-001F 183255002 9312-0003-002F 183255003 9312-0003-003F 183255004 9312-0003-004F 183255005 9312-0003-005F 183255006 9312-0003-006F 183255007 9312-0003-007F 183255008 9312-0003-008F 183255009 9312-0003-009F 183255010 9312-0003-009FS 183255011 9312-0003-OIOF 183255012 9312-0003-01 IF 183255013 9312-0003-012F 183255014 9312-0003-013F 183255015 9312-0003-014F 183255016 9312-0003-015F 183255017 9312-0003-016B 183255018 9312-0003-017B 183255019 9312-0003-018B 1201305361 Method Blank (MB) 1201305362 183255001(9312-0003-001F) Sample Duplicate (DUP) 1201305363 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# 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.

Ouality 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: 183255001 (9312-0003-001 F).

QC Information 20

All of the QC samples met the required acceptance limits.

Technical Information:

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

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

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

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 Qualifier Reason Analyte Sample UI Data rejected due to high counting uncertainty. Cesium- 137 183255017 UI Data rejected due to interference. Cesium- 134 183255004 Europium- 155 183255010 UI Data rejected due to low abundance. Americium-241 183255006 Bismuth-214 183255011 Cesium- 134 183255002 183255003 183255007 183255009 183255016 183255018 Method/Analysis Information 21

Product: GFPC, Sr90, solid-ALL FSS Analytical Method: EPA 905.0 Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 621124 Prep Batch Number: 621104 Dry Soil Prep GL-RAD-A-021 Batch Number: 621103 Sample ID Client ID 183255001 9312-0003-001 F 183255002 9312-0003-002F 183255003 9312-0003-003F 183255004 9312-0003-004F 183255005 9312-0003-005F 183255006 9312-0003-006F 183255007 9312-0003-007F 183255008 9312-0003-008F 183255009 9312-0003-009F 183255010 9312-0003-009FS 183255011 9312-0003-01OF 183255012 9312-0003-01 IF 183255013 9312-0003-012F 183255014 9312-0003-013F 183255015 9312-0003-014F 183255016 9312-0003-015F 183255017 9312-0003-016B 183255018 9312-0003-017B 183255019 9312-0003-018B 1201305277 Method Blank (MB) 1201305278 183255001(9312-0003-001F) Sample Duplicate (DUP) 1201305279 183255001(9312-0003-001F) Matrix Spike (MS) 1201305280 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 All initial and continuing calibration requirements have been met.

22

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: 183255001 (9312-0003-001F).

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

Technical Information:

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

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

Sample Re-prep/Re-analysis Samples 183255002 (9312-0003-002F) and 183255008 (9312-0003-008F) were recounted due to a negative result greater than three times the error.

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 23

Product: Liquid Scint Tc99, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Tc-02-RC Modified Analytical Batch Number: 621139 Sample ID Client ID 183255002 9312-0003-002F 183255013 9312-0003-012F 183255016 9312-0003-015F 1201305310 Method Blank (MB) 1201305311 183245006(9312-0001-005F) Sample Duplicate (DUP) 1201305312 183245006(9312-0001-005F) Matrix Spike (MS) 1201305313 Laboratory Control Sample (LCS)

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-005 REV# 14.

Calibration Information:

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

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

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

Quality Control (0C) Information:

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

Designated QC The following sample was used for QC: 183245006 (9312-0001-005F).

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

Technical Information:

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

Preparation Information 24

All preparation criteria have been met for these analyses.

Sample Re-prep/Re-analysis Sample 1201305312 (9312-0001-005F) 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 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: 621136 Prep Batch Number: 621104 Dry Soil Prep GL-RAD-A-021 Batch Number: 621103 Sample ID Client ID 183255002 9312-0003-002F 183255013 9312-0003-012F 183255016 9312-0003-015F 1201305300 Method Blank (MB) 1201305301 183245006(9312-0001-005F) Sample Duplicate (DUP) 1201305302 183245006(9312-0001-005F) Matrix Spike (MS) 1201305303 Laboratory Control Sample (LCS)

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

25

Calibration Information:

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

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

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

Quality Control (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: 183245006 (9312-0001-005F).

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

Technical Information:

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

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

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

Miscellaneous Information:

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

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information 26

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: 621137 Prep Batch Number: 621104 Dry Soil Prep GL-RAD-A-021 Batch Number: 621103 Sample ID Client ID 183255002 9312-0003-002F 183255013 9312-0003-012F 183255016 9312-0003-015F 1201305304 Method Blank (MB) 1201305305 183245006(9312-0001-005F) Sample Duplicate (DUP) 1201305306 183245006(9312-0001-005F) Matrix Spike (MS) 1201305307 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.

Ouality 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: 183245006 (9312-0001-005F).

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

27

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: 621141 Sample ID Client ID 183255002 9312-0003-002F 183255013 9312-0003-012F 183255016 9312-0003-015F 1201305316 Method Blank (MB) 1201305317 183255002(9312-0003-002F) Sample Duplicate (DUP) 1201305318 183255002(9312-0003-002F) Matrix Spike (MS) 1201305319 Laboratory Control Sample (LCS)

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

2S

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: 183255002 (9312-0003-002F).

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 29

Product: Liquid Scint C14, Solid All,FSS Analytical Method: EPA EERF C-01 Modified Analytical Batch Number: 621144 Sample ID Client ID 183255002 9312-0003-002F 183255013 9312-0003-012F 183255016 9312-0003-015F 1201305324 Method Blank (MB) 1201305325 183245006(9312-0001-005F) Sample Duplicate (DUP) 1201305326 183245006(9312-0001-005F) Matrix Spike (MS) 1201305327 Laboratory Control Sample (LCS)

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

Calibration Information:

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

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

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

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: 183245006 (9312-0001-005F).

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

Technical Information:

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

Preparation Information 30

All preparation criteria have been met for these analyses.

Sample Re-prep/Re-analysis Samples 1201305324 (MB), 1201305325 (9312-0001-005F), 1201305326 (9312-0001-005F) and 1201305327 (LCS) were recounted due to detector error.

Miscellaneous Information:

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

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:

7 Reviewer/Date:

31

SAMPLE DATA

SUMMARY

32

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

Client SDG: MSR#07-0131 GEL Work Order: 183255 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 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: April 5, 2007

Contact:

Mr. Jack McCarthy; Project: Soils PO# 002332 Client Sample ID: 9312-0003-OOIF Project: YANK01204 Sample ID: 183255001 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 4.44%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch pt Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.954 +/-0.263 0.0982 +/-0.263 0.196 pCi/g MJHI 03/30/07 0956 621154 Americium-241 U -0.0315 +/-0.0533 0.0422 +/-0.0533 0.0843 pCi/g Bismuth-212 0.762 +/-0.469 0.225 +/-0.469 0.450 pCi/g Bismuth-214 0.600 +/-0.134 0.0511 +/-0.134 0.102 pCi/g Cesium-134 U 0.0404 +/-0.0352 0.0327 +/-0.0352 0.0654 pCi/g Cesium-I 37 U -0.0638 +/-0.0378 0.0266 +/-0.0378 0.0532 pCi/g Cobalt-60 U 0.00635 +/-0.0381 0.0322 +/-0.0381 0.0644 pCi/g Europium-152 U -0.107 +/-0.0919 0.065 +/-0.0919 0.130 pCi/g Europium- 154 U -0.03 +/-0.0926 0.0751 +/-0.0926 0.150 pCi/g Europium-155 U 0.0313 +/-0.0747 0.0678 +/-0.0747 0.136 pCi/g Lead-212 0.909 +/-0.110 0.0372 +/-0.110 0.0744 pCi/g Lead-214 0.596 +/-0.126 0.0518 +/-0.126 0.104 pCi/g Manganese-54 U -0.0134 +/-0.031 0.0261 +/-0.031 0.0523 pCi/g Niobium-94 U 0.000192 +/-0.0307 0.0259 +/-0.0307 0.0517 pCi/g Potassium-40 13.9 +/-1.41 0.269 +/-1.41 0.538 pCi/g Radium-226 0.600 +/-0.134 0.0511 +/-0.134 0.102 pCi/g Silver-108m U -0.00202 +/-0.0285 0.0247 +/-0.0285 0.0494 pCi/g Thallium-208 0.273 +/-0.0629 0.0269 +/-0.0629 0.0538 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U -0.0138 +/-0.0138 0.0143 +/-0.0138 0.0342 pCi/g KSDI 04/03/07 1539 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified 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: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-OO1F Project: YANK01204 Sample ID: 183255001 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 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.

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

35

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-002F Proiect: YANK01204 Sample ID: 183255002 Client ID: YANK00]

Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 1.67%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch D Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U 0.0413 +/-0.0745 0.00 +/-0.0747 0.0948 pCi/g GXRI 04/03/07 0933 621107 Curium-242 U -0.00866 +/-0.017 0.0324 +/-0.017 0.163 pCi/g Curium-243/244 U 0.035 +/-0.0686 0.00 +/-0.0688 0.0948 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 U 0.0525 +/-0.151 0.108 +/-0.151 0.302 pCi/g GXRI 04/04/07 2258 622351 Plutonium-239/240 U -0.0231 +/-0.068 0.0498 +/-0.068 0.186 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U -7.9 +/-9.03 7.94 +/-9.03 16.7 pCi/g BXLI 04/05/07 1427 622105 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.904 +/-0.252 0.0797 +/-0.252 0.159 pCi/g MJHI 03/30/07 1029 621154 Americium-241 U 0.0484 +/-0.0416 0.0346 +/-0.0416 0.0691 pCi/g Bismuth-212 0.772 +/-0.446 0.189 +/-0.446 0.378 pCi/g Bismuth-214 0.789 +/-0.157 0.0422 +/-0.157 0.0842 pCi/g Cesium-134 UI 0.00 +/-0.0557 0.036 +/-0.0557 0.072 pCi/g Cesium-137 U -0.0019 +/-0.0276 0.0242 +/-0.0276 0.0483 pCi/g Cobalt-60 U 0.00619 +/-0.0364 0.031 +/-0.0364 0.0619 pCi/g Europium-152 U -0.0244 +/-0.0844 0.0592 +/-0.0844 0.118 pCi/g Europium-154 U -0.079 +/-0.104 0.0796 +/-0.104 0.159 pCi/g Europium-155 U 0.0096 +/-0.0606 0.054 +/-0.0606 0.108 pCi/g Lead-212 0.922 +/-0.105 0.0318 +/-0.105 0.0635 pCi/g Lead-214 0.613 +/-0.111 0.0434 +/-0.111 0.0868 pCi/g Manganese-54 U 0.00286 +/-0.0315 0.0275 +/-0.0315 0.0549 pCi/g Niobium-94 U 0.00346 +/-0.025 0.0222 +/-0.025 0.0443 pCi/g Potassium-40 15.5 +/-1.37 0.134 +/-1.37 0.267 pCi/g Radium-226 0.789 +/-0.157 0.0422 +/-0.157 0.0842 pCi/g Silver-108m U -0.0222 +/-0.0228 0.0183 +/-0.0228 0.0367 pCi/g Thallium-208 0.341 +/-0.0697 0.0229 +/-0.0697 0.0457 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U -0.00255 +/-0.017 0.0147 +/-0.017 0.035 pCi/g KSDI 04/03/07 2009 621124 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi/g Tritium U -0.106 +/-1.06 0.896 +/-1.06 1.88 pCi/g AXD2 03/31/07 1450 621141 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 lnjun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-002F Proiect: YAN K01204 Sample ID: 183255002 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch D Rad Liquid Scintillation Analysis Liquid Scint C14, Solid All, FSS Carbon-14 U -0.0392 +/-0.0887 0.0754 +/-0.0887 0.154 pCi/g AXD2 03/30/07 2053 621144 Liquid Scint Fe55, Solid-ALL FSS lron-55 U -0.217 +/-34.3 24.7 +/-34.3 52.0 pCi/g MXPI 04/02/07 2113 621136 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -7.84 +/-9.73 8.51 +/-9.73 17.8 pCi/g MXPI 04/02/07 1621 621137 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.134 +/-0.231 0.197 +/-0.231 0.403 pCi/g MXPI 04/03/07 1349 621139 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu-I -RC Modified 3 DOE EML HASL-300, Pu-I I-RC Modified 4 DOE EML HASL-300, Pu-I 1-RC Modified 5 DOE EML HASL-300, Pu-I 1-RC Modified 6 EML HASL 300, 4.5.2.3 7 EPA 905.0 Modified 8 EPA 905.0 Modified 9 EPA 906.0 Modified 10 EPA EERF C-01 Modified 11 DOE RESL Fe-I, Modified 12 DOE RESL Ni-I, Modified 13 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Tracer Alphaspec Am241, Cm, Solid ALL 74 (15%-125%)

Plutonium-242 Tracer Alphaspec Pu, Solid-ALL FSS 94 (15%-125%)

Plutonium-242 Tracer Liquid Scint Pu24t, Solid-ALL FS 74 (25%-1 25%)

Strontium Carrier GFPC, Sr90, solid-ALL FSS 75 (25%-125%)

(15%-125%)

37

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-002F Project: YANK01204 Sample ID: 183255002 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1D Iron-59 Tracer Liquid Scint Fe55, Solid-ALL FS 56 Nickel Carrier Liquid Scint Ni63, Solid-ALL FS 79 (25%-125%)

Technetium-99m Tracer Liquid Scint Tc99, Solid-ALL FS 84 (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.

38

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-003F Project: YANK01204 Sample ID: 183255003 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 5.55%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pt Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.929 +/-0.177 0.06U6 +/-0.177 0.121 pCi/g MJHI 03/30/07 1111 621154 Americium-241 U 0.00981 +/-0.0783 0.0634 +/-0.0783 0.127 pCi/g Bismuth-212 0.372 +/-0.289 0.153 +/-0.289 0.307 pCi/g Bismuth-214 0.495 +/-0.0961 0.0378 +/-0.0961 0.0756 pCi/g Cesium-I 34 UI 0.00 +/-0.0438 0.0253 +/-0.0438 0.0505 pCi/g Cesium-137 U -0.0128 +/-0.0233 0.0188 +/-0.0233 0.0376 pCi/g Cobalt-60 U 0.00183 +/-0.0245 0.0206 +/-0.0245 0.0411 pCi/g Europium-152 U -0.0352 +/-0.0702 0.0486 +/-0.0702 0.097 pCi/g Europium-154 U 0.0186 +/-0.0736 0.0632 +/-0.0736 0.126 pCi/g Europium-155 U 0.00145 +/-0.0575 0.0513 +/-0.0575 0.103 pCi/g Lead-212 0.886 +/-0.0917 0.0275 +/-0.0917 0.055 pCi/g Lead-214 0.691 +/-0.107 0.0359 +/-0.107 0.0718 pCi/g Manganese-54 U 0.0292 +/-0.0253 0.0182 +/-0.0253 0.0363 pCi/g Niobium-94 U 0.0273 +/-0.0284 0.0174 +/-0.0284 0.0347 pCi/g Potassium-40 14.8 +/-1.31 0.177 +/-1.31 0.353 pCi/g Radium-226 0.495 +/-0.0961 0.0378 +/-0.0961 0.0756 pCi/g Silver-108m U 0.018 +/-0.0192 0.0176 +/-0.0192 0.0352 pCi/g Thallium-208 0.303 +/-0.0556 0.0175 +/-0.0556 0.0349 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.012 +/-0.0239 0.0184 +/-0.0239 0.0426 pCi/g KSDI 04/03/07 1539 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits 39

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-003F Project: YANK01204 Sample ID: 183255003 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 7.7 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

    • Analyte is a surrogate compound

< Result is less than value reported

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

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

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

40

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-004F Proiect: YANK01204 Sample ID: 183255004 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 4.01%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1D Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.923 +/-0.217 0.0736 +/-0.217 0.147 pCi/g MJHI 03/30/07 1112 621154 Americium-241 U 0.00282 +/-0.109 0.0853 +/-0.109 0.171 pCi/g Bismuth-212 0.930 +/-0.346 0.150 +/-0.346 0.300 pCi/g Bismuth-214 0.712 +/-0.123 0.0375 +/-0.123 0.0749 pCi/g Cesium-134 UT 0.00 +/-0.0434 0.0223 +/-0.0434 0.0447 pCi/g Cesium-137 U 0.0119 +/-0.0247 0.022 +/-0.0247 0.044 pCi/g Cobalt-60 U -0.0221 +/-0.0243 0.0184 +/-0.0243 0.0367 pCi/g Europium-152 U 0.00808 +/-0.0666 0.0554 +/-0.0666 0.111 pCi/g Europium-154 U -0.0212 +/-0.0826 0.0656 +/-0.0826 0.131 pCi/g Europium-155 U 0.0786 +/-0.0682 0.0647 +/-0.0682 0.129 pCi/g Lead-212 0.907 +/-0.0967 0.0314 +/-0.0967 0.0627 pCi/g Lead-214 0.695 +/-0.107 0.0368 +/-0.107 0.0735 pCi/g Manganese-54 U 0.016 +/-0.0243 0.0216 +/-0.0243 0.0431 pCi/g Niobium-94 U 0.000341 +/-0.0215 0.0185 +/-0.0215 0.0369 pCi/g Potassium-40 16.0 +/-1.47 0.176 +/-1.47 0.351 pCi/g Radium-226 0.712 +/-0.123 0.0375 +/-0.123 0.0749 pCi/g Silver-108m U -0.00412 +/-0.0244 0.0176 +/-0.0244 0.0351 pCi/g Thallium-208 0.276 +/-0.0552 0.0198 +/-0.0552 0.0396 pCi/g Rad Gas Flow Proportional Counting GFPC,SO9O, solid-ALL FSS Strontium-90 U 0.0191 +/-0.025 0.018 +/-0.025 0.0427 pCi/g KSDI 04/03/07 1539 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 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 41

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-004F Project: YANK01204 Sample ID: 183255004 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 66 (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.

42

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-005F Project: YANK01204 Sample ID: 183255005 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 5.9%

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 1.12 +/-0.211 0.0602 +/-0.211 0.120 pCi/g MJHI 03/30/07 1112 621154 Americium-241 U 0.061 +/-0.0796 0.0641 +/-0.0796 0.128 pCi/g Bismuth-212 0.657 +/-0.266 0.137 +/-0.266 0.274 pCi/g Bismuth-214 0.660 +/-0.107 0.0352 +/-0.107 0.0704 pCi/g Cesium-134 U 0.0338 +/-0.0258 0.0242 +/-0.0258 0.0484 pCi/g Cesium-137 U -0.00937 +/-0.0243 0.0198 +/-0.0243 0.0396 pCi/g Cobalt-60 U 0.0178 +/-0.0239 0.0217 +/-0.0239 0.0433 pCi/g Europium-152 U 0.0223 +/-0.0771 0.0563 +/-0.0771 0.112 pCi/g Europium-154 U -0.0995 +/-0.0775 0.0564 +/-0.0775 0.113 pCi/g Europium-155 U 0.0629 +/-0.0581 0.0571 +/-0.0581 0.114 pCi/g Lead-212 0.973 +/-0.0991 0.0303 +/-0.0991 0.0605 pCi/g Lead-214 0.713 +/-0.104 0.0366 +/-0.104 0.0731 pCi/g Manganese-54 U 0.00653 +/-0.0234 0.0207 +/-0.0234 0.0413 pCi/g Niobium-94 U -0.0183 +/-0.0208 0.0161 +/-0.0208 0.0322 pCi/g Potassium-40 15.8 +/-1.34 0.158 +/-1.34 0.316 pCi/g Radium-226 0.660 +/-0.107 0.0352 +/-0.107 0.0704 pCi/g Silver-108m U -0.00229 +/-0.0201 0.0172 +/-0.0201 0.0344 pCi/g Thallium-208 0.275 +/-0.0543 0.0187 +/-0.0543 0.0375 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00325 +/-0.0182 0.0147 +/-0.0182 0.0353 pCi/g KSDI 04/03/07 1539 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 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 43

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-005F Project: YANK01204 Sample ID: 183255005 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, Sr9O, solid-ALL FSS 71 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows:

    • Analyte is a surrogate compound

< Result is less than value reported

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

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

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

44

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-006F Proiect: YANK01204 Sample ID: 183255006 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 8.85%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1P Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.48 +/-0.315 0.102 +/-0.315 0.204 pCi/g MJHI 03/30/07 1113 621154 Americium-241 U1 0.00 +/-0.053 0.0449 +/-0.053 0.0898 pCi/g Bismuth-212 0.690 +/-0.483 0.221 +/-0.483 0.441 pCi/g Bismuth-214 1.14 +/-0.177 0.0477 +/-0.177 0.0953 pCi/g Cesium-134 U 0.0784 +/-0.0501 0.0395 +/-0.0501 0.079 pCi/g Cesium-137 U -0.00358 +/-0.0352 0.0292 +/-0.0352 0.0584 pCi/g Cobalt-60 U -0.00286 +/-0.0402 0.0331 +/-0.0402 0.0662 pCi/g Europium-152 U -0.0825 +/-0.0853 0.0655 +/-0.0853 0.131 pCi/g Europium-154 U 0.0845 +/-0.118 0.106 +/-0.118 0.211 pCi/g Europium-155 U 0.0216 +/-0.0796 0.0708 +/-0.0796 0.142 pCi/g Lead-212 1.36 +/-0.168 0.0416 +/-0.168 0.0832 pCi/g Lead-214 1.28 +/-0.179 0.0492 +/-0.179 0.0983 pCi/g Manganese-54 U 0.00518 +/-0.0331 0.0289 +/-0.0331 0.0577 pCi/g Niobium-94 U 0.0254 +/-0.0318 0.0282 +/-0.0318 0.0564 pCi/g Potassium-40 20.4 +/-1.93 0.199 +/-1.93 0.398 pCi/g Radium-226 1.14 +/-0.177 0.0477 +/-0.177 0.0953 pCi/g Silver-108m U2.240E-05 +/-0.0294 0.0253 +/-0.0294 0.0506 pCi/g Thallium-208 0.446 +/-0.0799 0.0259 +/-0.0799 0.0518 pCi/g Rad Gas Flow Proportional Counting GFPC,SO9O, solid-ALL FSS Strontium-90 U -0.0119 +/-0.0171 0.0167 +/-0.0171 0.0401 pCi/g KSDI 04/03/07 1539 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 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 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 Ctt East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-006F Project: YANK01204 Sample ID: 183255006 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 62 (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.

46

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-007F Project: YANK01204 Sample ID: 183255007 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 3.54%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.937 +/-0.213 0.0624 +/-0.213 0.125 pCi/g MJH1 03/30/07 1113 621154 Americium-241 U -0.0184 +/-0.0761 0.0618 +/-0.0761 0.124 pCi/g Bismuth-212 0.734 +/-0.260 0.138 +/-0.260 0.277 pCi/g Bismuth-214 0.654 +/-0.106 0.0346 +/-0.106 0.0692 pCi/g Cesium-134 UI 0.00 +/-0.0317 0.0248 +/-0.0317 0.0496 pCi/g Cesium-137 U -0.0138 +/-0.0202 0.0162 +/-0.0202 0.0324 pCi/g Cobalt-60 U 0.0106 +/-0.0219 0.0193 +/-0.0219 0.0386 pCi/g Europium-152 U 0.0704 +/-0.0663 0.0494 +/-0.0663 0.0987 pCi/g Europium-154 U -0.0111 +/-0.0723 0.060 +/-0.0723 0.120 pCi/g Europium-155 U 0.0498 +/-0.0591 0.055 +/-0.0591 0.110 pCi/g Lead-212 0.980 +/-0.0959 0.0256 +/-0.0959 0.0511 pCi/g Lead-214 0.745 +/-0.103 0.0327 +/-0.103 0.0653 pCi/g Manganese-54 U 0.0105 +/-0.0218 0.0196 +/-0.0218 0.0391 pCi/g Niobium-94 U -0.00842 +/-0.0202 0.0165 +/-0.0202 0.0331 pCi/g Potassium-40 15.6 +/-1.37 0.181 +/-1.37 0.361 pCi/g Radium-226 0.654 +/-0.106 0.0346 +/-0.106 0.0692 pCi/g Silver-108m U 0.00703 +/-0.0178 0.016 +/-0.0178 0.0319 pCi/g Thallium-208 0.281 +/-0.0543 0.0182 +/-0.0543 0.0364 pCi/g Rad Gas Flow Proportional Counting GFPC,SO9O, solid-ALL FSS Strontium-90 U 0.0365 +/-0.0268 0.0177 +/-0.0269 0.0413 pCi/g KSDI 04/03/07 1539 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits 47

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-007F Project: YANK01204 Sample ID: 183255007 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch P Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 72 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows:

    • Analyte is a surrogate compound

< Result is less than value reported

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

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

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

48

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-008F Proiect: YANK01204 Sample ID: 183255008 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 2.6%

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

Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.668 +/-0.265 0.100 +/-0.265 0.201 pCi/g MJHI 03/30/07 1114 621154 Americium-241 U -0.0114 +/-0.0464 0.0393 +/-0.0464 0.0786 pCi/g Bismuth-212 0.480 +/-0.349 0.212 +/-0.349 0.423 pCi/g Bismuth-214 0.589 +/-0.142 0.046 +/-0.142 0.092 pCi/g Cesium-134 U 0.0743 +/-0.0488 0.0388 +/-0.0488 0.0776 pCi/g Cesium-137 U 0.0225 +/-0.0433 0.0267 +/-0.0433 0.0534 pCi/g Cobalt-60 U -0.00712 +/-0.0345 0.0277 +/-0.0345 0.0553 pCi/g Europium-152 U -0.0499 +/-0.0729 0.0597 +/-0.0729 0.119 pCi/g Europium-154 U -0.0241 +/-0.101 0.0807 +/-0.101 0.161 pCi/g Europium-155 U 0.0389 +/-0.0674 0.062 +/-0.0674 0.124 pCi/g Lead-212 0.862 +/-0.108 0.0317 +/-0.108 0.0633 pCi/g Lead-214 0.596 +/-0.127 0.0454 +/-0.127 0.0907 pCi/g Manganese-54 U -0.0167 +/-0.0317 0.0262 +/-0.0317 0.0524 pCi/g Niobium-94 U -0.0021 +/-0.0351 0.0294 +/-0.0351 0.0587 pCi/g Potassium-40 13.3 +/-1.41 0.165 +/-1.41 0.331 pCi/g Radium-226 0.589 +/-0.142 0.046 +/-0.142 0.092 pCi/g Silver-108m U -0.00541 +/-0.0256 0.0221 +/-0.0256 0.0442 pCi/g Thallium-208 0.242 +/-0.0705 0.0253 +/-0.0705 0.0505 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U -0.0016 +/-0.0162 0.0139 +/-0.0162 0.0328 pCi/g KSDI 04/03/07 2009 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 The following Analytical Methods were performed Method Description I EML HASL 300 4.5.2.3 EPA 905.0 Modified 2

EPA 905.0 Modified 3

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: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-008F Project: YANK01204 Sample ID: 183255008 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 72 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

    • Analyte is a surrogate compound

< Result is less than value reported

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

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

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

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-009F Project: YANK01204 Sample ID: 183255009 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 2.64%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1' Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.792 +/-0.179 0.0601 +/-0.179 0.120 pCi/g MJHI 03/30/07 1114 621154 Americium-241 U -0.0223 +/-0.0913 0.0733 +/-0.0913 0.147 pCi/g Bismuth-212 0.552 +/-0.296 0.135 +/-0.296 0.269 pCi/g Bismuth-214 0.600 +/-0.110 0.0336 +/-0.110 0.0672 pCi/g Cesium-134 UI 0.00 +/-0.0277 0.0217 +/-0.0277 0.0434 pCi/g Cesium-137 U-0.000806 +/-0.0224 0.0192 +/-0.0224 0.0383 pCi/g Cobalt-60 U 0.00492 +/-0.0236 0.0205 +/-0.0236 0.0409 pCi/g Europium-152 U -0.0239 +/-0.0964 0.0487 +/-0.0964 0.0973 pCi/g Europium-154 U 0.0297 +/-0.0682 0.0606 +/-0.0682 0.121 pCi/g Europium-155 U-0.000475 +/-0.0587 0.0529 +/-0.0587 0.106 pCi/g Lead-212 0.818 +/-0.0877 0.0266 +/-0.0877 0.0531 pCi/g Lead-214 0.551 +/-0.110 0.0318 +/-0.110 0.0635 pCi/g Manganese-54 U 0.00269 +/-0.0223 0.0189 +/-0.0223 0.0379 pCi/g Niobium-94 U -0.0084 +/-0.0185 0.0151 +/-0.0185 0.0303 pCi/g Potassium-40 12.6 +/-1.25 0.156 +/-1.25 0.312 pCi/g Radium-226 0.600 +/-0.110 0.0336 +/-0.110 0.0672 pCi/g Silver-108m U -0.0118 +/-0.0192 0.0163 +/-0.0192 0.0325 pCi/g Thallium-208 0.284 +/-0.0489 0.0165 +/-0.0489 0.033 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00108 +/-0.017 0.0141 +/-0.017 0.0336 pCi/g KSD1 04/03/07 1539 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 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 S1I

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-009F Project: YANK01204 Sample ID: 183255009 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 78 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

    • Analyte is a surrogate compound

< Result is less than value reported

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

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

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

52

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-009FS Project: YANKO01204 Sample ID: 183255010 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 7.39%

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 0.817 +/-0.173 0.0713 +/-0.173 0.143 pCi/g MJHI 03/30/07 1116 621154 Americium-241 U 0.0738 +/-0.0674 0.0579 +/-0.0674 0.116 pCi/g Bismuth-212 0.793 +/-0.291 0.163 +/-0.291 0.326 pCi/g Bismuth-214 0.524 +/-0.102 0.0354 +/-0.102 0.0708 pCi/g Cesium-134 U 0.0431 +/-0.0553 0.0255 +/-0.0553 0.051 pCi/g Cesium-137 U -0.0109 +/-0.0216 0.0177 +/-0.0216 0.0353 pCi/g Cobalt-60 U 0.00501 +/-0.0225 0.0193 +/-0.0225 0.0386 pCi/g Europium-152 U 0.0755 +/-0.0723 0.0568 +/-0.0723 0.114 pCi/g Europium-154 U -0.00294 +/-0.0621 0.0508 +/-0.0621 0.102 pCi/g Europium-155 UI 0.00 +/-0.0904 0.0531 +/-0.0904 0.106 pCi/g Lead-212 0.806 +/-0.0876 0.0296 +/-0.0876 0.0592 pCi/g Lead-214 0.612 +/-0.101 0.0363 +/-0.101 0.0725 pCi/g Manganese-54 U 0.00878 +/-0.0219 0.0196 +/-0.0219 0.0392 pCi/g Niobium-94 U -0.0182 +/-0.0215 0.0172 +/-0.0215 0.0343 pCi/g Potassium-40 13.7 +/-1.20 0.134 +/-1.20 0.268 pCi/g Radium-226 0.524 +/-0.102 0.0354 +/-0.102 0.0708 pCi/g Silver-108m U -0.0161 +/-0.023 0.018 +/-0.023 0.036 pCi/g Thallium-208 0.234 +/-0.0457 0.0193 +/-0.0457 0.0387 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U -0.0109 +/-0.017 0.0161 +/-0.017 0.0378 pCi/g KSDI 04/03/07 1540 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 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: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-009FS Project: YANK01204 Sample ID: 183255010 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 71 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows

    • Analyte is a surrogate compound

< Result is less than value reported

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

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

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

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-OIOF Project: YANK01204 Sample ID: 183255011 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 6.68%

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 1.18 +/-0.297 0.0923 +/-0.297 0.185 pCi/g MJHI 03/30/07 1201 621154 Americium-241 U 0.0123 +/-0.0642 0.039 +/-0.0642 0.0779 pCi/g Bismuth-212 0.781 +/-0.398 0.210 +/-0.398 0.420 pCi/g Bismuth-214 UI 0.00 +/-0.153 0.110 +/-0.153 0.219 pCi/g Cesium-134 U 0.0659 +/-0.0632 0.035 +/-0.0632 0.070 pCi/g Cesium-137 U 0.0121 +/-0.0333 0.0292 +/-0.0333 0.0583 pCi/g Cobalt-60 U 0.016 +/-0.0317 0.0284 +/-0.0317 0.0568 pCi/g Europium-152 U 0.0165 +/-0.0831 0.0685 +/-0.0831 0.137 pCi/g Europium-154 U 0.0265 +/-0.103 0.0893 +/-0.103 0.179 pCi/g Europium-155 U 0.0755 +/-0.0708 0.0662 +/-0.0708 0.132 pCi/g Lead-212 1.03 +/-0.141 0.0379 +/-0.141 0.0757 pCi/g Lead-214 0.702 +/-0.131 0.0507 +/-0.131 0.101 pCi/g Manganese-54 U 0.00503 +/-0.0362 0.0277 +/-0.0362 0.0554 pCi/g Niobium-94 U-0.000884 +/-0.0297 0.025 +/-0.0297 0.0501 pCi/g Potassium-40 15.9 +/-1.55 0.225 +/-1.55 0.450 pCi/g Radium-226 0.702 +/-0.153 0.0511 +/-0.153 0.102 pCi/g Silver-108m U -0.00111 +/-0.0282 0.0247 +/-0.0282 0.0494 pCi/g Thallium-208 0.282 +/-0.0766 0.0267 +/-0.0766 0.0533 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00406 +/-0.0199 0.0161 +/-0.0199 0.0377 pCi/g KSDI 04/03/07 1540 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-OIOF Project: YANK01204 Sample ID: 183255011 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 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.

96

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-011F Project: YANK01204 Sample ID: 183255012 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 8.28%

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 0.885 +/-0.255 0.124 +/-0.255 0.247 pCi/g MJHI 03/30/07 1302 621154 Americium-241 U -0.00153 +/-0.0604 0.0501 +/-0.0604 0.100 pCi/g Bismuth-212 0.875 +/-0.414 0.235 +/-0.414 0.469 pCi/g Bismuth-214 0.776 +/-0.151 0.052 +/-0.151 0.104 pCi/g Cesium-I 34 U 0.075 +/-0.0735 0.0402 +/-0.0735 0.0803 pCi/g Cesium-I 37 U -0.0338 +/-0.0423 0.0332 +/-0.0423 0.0664 pCi/g Cobalt-60 U -0.00428 +/-0.0421 0.035 +/-0.0421 0.0699 pCi/g Europium-152 U 0.082 +/-0.101 0.0836 +/-0.101 0.167 pCi/g Europium- 154 U 0.0326 +/-0.118 0.102 +/-0.118 0.204 pCi/g Europium-155 U 0.0633 +/-0.113 0.069 +/-0.113 0.138 pCi/g Lead-212 0.918 +/-0.116 0.045 +/-0.116 0.0899 pCi/g Lead-214 0.707 +/-0.128 0.0546 +/-0.128 0.109 pCi/g Manganese-54 U -0.0258 +/-0.0437 0.0309 +/-0.0437 0.0617 pCi/g Niobium-94 U-0.000172 +/-0.0349 0.0296 +/-0.0349 0.0591 pCi/g Potassium-40 15.8 +/-1.57 0.272 +/-1.57 0.543 pCi/g Radium-226 0.776 +/-0.151 0.052 +/-0.151 0.104 pCi/g Silver-108m U -0.00841 +/-0.0315 0.0273 +/-0.0315 0.0547 pCi/g Thallium-208 0.323 +/-0.0777 0.0328 +/-0.0777 0.0655 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.0154 +/-0.0243 0.0186 +/-0.0243 0.0422 pCi/g KSDI 04/03/07 1540 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 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 57

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-01IF Project: YANK01204 Sample ID: 183255012 Client ID: YANK001 Vol. Recv.:

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

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

Notes:

The Qualifiers in this report are defined as follows

    • Analyte is a surrogate compound

< Result is less than value reported

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

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

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

58

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-012F Proiect: YANK01204 Sample ID: 183255013 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 4.46%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pt Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U --0.0109 +/-0.0377 0.0452 +/-0.0377 0.187 pCi/g GXRl 04/04/07 0820 621107 Curium-242 U 0.0473 +/-0.107 0.0574 +/-0.107 0.215 pCi/g Curium-243/244 U 0.0827 +/-0.147 0.0846 +/-0.147 0.266 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 U 0.029 +/-0.0568 0.00 +/-0.0569 0.0785 pCi/g GXR1 04/04/07 2258 622351 Plutonium-239/240 U 0.0151 +/-0.060 0.0368 +/-0.060 0.152 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U 0.662 +/-7.96 6.65 +/-7.96 14.0 pCi/g BXL1 04/05/07 1443 622105 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.912 +/-0.232 0.0725 +/-0.232 0.145 pCi/g MJH1 04/02/07 1537 621154 Americium-241 U 0.0854 +/-0.0941 0.0807 +/-0.0941 0.161 pCi/g Bismuth-212 0.562 +/-0.348 0.182 +/-0.348 0.364 pCi/g Bismuth-214 0.581 +/-0.113 0.0403 +/-0.113 0.0805 pCi/g Cesium-134 U 0.0442 +/-0.042 0.0259 +/-0.042 0.0517 pCi/g Cesium-137 U -0.0657 +/-0.0312 0.023 +/-0.0312 0.046 pCi/g Cobalt-60 U -0.0155 +/-0.0262 0.0203 +/-0.0262 0.0407 pCi/g Europium-152 U -0.0093 +/-0.0944 0.0636 +/-0.0944 0.127 pCi/g Europium-154 U 0.00388 +/-0.0776 0.0653 +/-0.0776 0.131 pCi/g Europium-155 U 0.0747 +/-0.0842 0.0763 +/-0.0842 0.153 pCi/g Lead-212 0.843 +/-0.101 0.0361 +/-0.101 0.0722 pCi/g Lead-214 0.632 +/-0.128 0.0465 +/-0.128 0.093 pCi/g Manganese-54 U -0.0132 +/-0.0259 0.0217 +/-0.0259 0.0434 pCi/g Niobium-94 U-0.000829 +/-0.0244 0.0206 +/-0.0244 0.0411 pCi/g Potassium-40 14.6 +/-1.30 0.188 +/-1.30 0.376 pCi/g Radium-226 0.581 +/-0.113 0.0403 +/-0.113 0.0805 pCi/g Silver-108m U 0.0117 +/-0.0243 0.0218 +/-0.0243 0.0437 pCi/g Thallium-208 0.276 +/-0.0579 0.021 +/-0.0579 0.0419 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U 0.00198 +/-0.0238 0.0197 +/-0.0238 0.0447 pCi/g KSDI 04/03/07 1540 621124 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi/g Tritium U -0.81 +/-0.917 0.807 +/-0.917 1.69 pCi/g AXD2 03/31/07 1551 621141 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: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-012F Proiect: YANK01204 Sample ID: 183255013 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Di Rad Liquid Scintillation Analysis Liquid Scint C14, Solid Al, FSS Carbon-14 U -0.0161 +/-0.0882 0.0744 +/-0.0882 0.152 pCi/g AXD2 03/30/07 21"56 621144 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U 1.33 +/-33.6 23.8 +/-33.6 50.0 pCi/g MXP1 04/02/07 2130 621136 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -5.59 +/-9.25 8.01 +/-9.25 16.8 pCi/g MXPI 04/02/07 1637 621137 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.148 +/-0.224 0.191 +/-0.224 0.391 pCi/g MXPI 04/03/07 1421 621139 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 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 I-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 I-RC Modified 7 EML HASL 300,4.5.2.3 8 EPA 905.0 Modified 9 EPA 906.0 Modified 10 EPA EERF C-01 Modified 11 DOE RESL Fe-I, Modified 12 DOE RESL Ni-l, Modified 13 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Tracer Alphaspec Am241, Cm, Solid ALL 86 (15%-125%)

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

Plutonium-242 Tracer Liquid Scint Pu241, Solid-ALL F5 87 (25%-125%)

Strontium Carrier GFPC, Sr90, solid-ALL FSS 70 (25%-125%)

(15%-125%)

60

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-012F Project: YANK01204 Sample ID: 183255013 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Iron-59 Tracer Liquid Scint Fe55, Solid-ALL FS 65 Nickel Carrier Liquid Scint Ni63, Solid-ALL FS 81 (25%-125%)

Technetium-99m Tracer Liquid Scint Tc99, Solid-ALL FS 86 (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.

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-013F Proiect: YANK01204 Sample ID: 183255014 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 2.82%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch D Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.708 +/-0.198 0.0712 +/-0.198 0.142 pCi/g MJHI 04/02/07 1842 621154 Americium-241 U 0.0742 +/-0.0899 0.0784 +/-0.0899 0.157 pCi/g Bismuth-212 0.593 +/-0.291 0.148 +/-0.291 0.297 pCi/g Bismuth-214 0.655 +/-0.123 0.0359 +/-0.123 0.0718 pCi/g Cesium-134 U 0.0288 +/-0.0278 0.0251 +/-0.0278 0.0501 pCi/g Cesium-137 U -0.0668 +/-0.0287 0.0209 +/-0.0287 0.0417 pCi/g Cobalt-60 U 0.0109 +/-0.0246 0.0216 +/-0.0246 0.0432 pCi/g Europium-152 U 0.00427 +/-0.0766 0.0605 +/-0.0766 0.121 pCi/g Europium-154 U -0.0295 +/-0.0787 0.0639 +/-0.0787 0.128 pCi/g Europium-155 U 0.0686 +/-0.0746 0.0705 +/-0.0746 0.141 pCi/g Lead-212 0.899 +/-0.102 0.0362 +/-0.102 0.0723 pCi/g Lead-214 0.731 +/-0.122 0.0418 +/-0.122 0.0836 pCi/g Manganese-54 U 0.0138 +/-0.0244 0.0222 +/-0.0244 0.0443 pCi/g Niobium-94 U 0.0192 +/-0.0216 0.0198 +/-0.0216 0.0395 pCi/g Potassium-40 14.8 +/-1.35 0.175 +/-1.35 0.349 pCi/g Radium-226 0.655 +/-0.123 0.0359 +/-0.123 0.0718 pCi/g Silver-108m U 0.000511 +/-0.0232 0.0194 +/-0.0232 0.0389 pCi/g Thallium-208 0.296 +/-0.057 0.0194 +/-0.057 0.0387 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U-0.000504 +/-0.0155 0.0131 +/-0.0155 0.0314 pCi/g KSDI 04/03/07 1647 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-013F Project: YANK01204 Sample ID: 183255014 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: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-014F Proiect: YANK01204 Sample ID: 183255015 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 6.6%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch D Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.921 +/-0.223 0.0716 +/-0.223 0.143 pCi/g MJH1 04/02/07 2147 621154 Americium-241 U 0.0947 +/-0.0915 0.0805 +/-0.0915 0.161 pCi/g Bismuth-212 0.715 +/-0.282 0.159 +/-0.282 0.318 pCi/g Bismuth-214 0.621 +/-0.117 0.0376 +/-0.117 0.0752 pCi/g Cesium-134 U 0.017 +/-0.0361 0.0274 +/-0.0361 0.0548 pCi/g Cesium-137 U -0.0537 +/-0.0327 0.0221 +/-0.0327 0.0441 pCi/g Cobalt-60 U 0.00424 +/-0.0294 0.0215 +/-0.0294 0.043 pCi/g Europium-152 U 0.063 +/-0.0815 0.0638 +/-0.0815 0.128 pCi/g Europium-154 U -0.0308 +/-0.0787 0.0637 +/-0.0787 0.127 pCi/g Europium-155 U 0.0924 +/-0.112 0.0723 +/-0.112 0.145 pCi/g Lead-212 0.889 +/-0.102 0.0385 +/-0.102 0.0769 pCi/g Lead-214 0.700 +/-0.125 0.0403 +/-0.125 0.0805 pCi/g Manganese-54 U -0.00548 +/-0.029 0.0214 +/-0.029 0.0429 pCi/g Niobium-94 U 0.00584 +/-0.0246 0.0213 +/-0.0246 0.0425 pCi/g Potassium-40 14.6 +/-1.35 0.184 +/-1.35 0.368 pCi/g Radium-226 0.621 +/-0.117 0.0376 +/-0.117 0.0752 pCi/g Silver-108m U 0.0186 +/-0.0238 0.0195 +/-0.0238 0.039 pCi/g Thallium-208 0.301 +/-0.0652 0.0211 +/-0.0652 0.0422 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U -0.00862 +/-0.0169 0.0157 +/-0.0169 0.0372 pCi/g KSDI 04/03/07 1647 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 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 94

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr: Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-014F Project: YANK01204 Sample ID: 183255015 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 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: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-015F Project: YANK01204 Sample ID: 183255016 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 7.37%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch P Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U 0.0787 +/-0.116 0.0347 +/-0.116 0.174 pCi/g GXRI 04/03/07 0933 621107 Curium-242 U 0.00 +/-0.0782 0.00 +/-0.0782 0.108 pCi/g Curium-243/244 U 0.0294 +/-0.078 0.0347 +/-0.0781 0.174 pCi/g Alphaspec Pu, Solid-ALL FSS Plutonium-238 U -0.0146 +/-0.0203 0.0387 +/-0.0203 0.160 pCi/g GXRI 04/04/07 2258 622351 Plutonium-239/240 U 0.00 +/-0.0597 0.00 +/-0.0597 0.0825 pCi/g Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U 0.999 +/-8.92 7.44 +/-8.92 15.6 pCi/g BXLI 04/05/07 1459 622105 Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.679 +/-0.213 0.0666 +/-0.213 0.133 pCi/g MJHI 04/03/07 0052 621154 Americium-241 U 0.115 +/-0.0925 0.0803 +/-0.0925 0.161 pCi/g Bismuth-212 U 0.314 +/-0.307 0.165 +/-0.307 0.330 pCi/g Bismuth-214 0.537 +/-0.114 0.0378 +/-0.114 0.0756 pCi/g Cesium-] 34 Ul 0.00 +/-0.0491 0.0283 +/-0.0491 0.0565 pCi/g Cesium-137 U -0.0355 +/-0.0318 0.0256 +/-0.0318 0.0511 pCi/g Cobalt-60 U - 0.00282 +/-0.0264 0.0217 +/-0.0264 0.0434 pCi/g Europium-152 U -0.0368 +/-0.0933 0.0612 +/-0.0933 0.122 pCi/g Europium-154 U -0.0724 +/-0.0819 0.0623 +/-0.0819 0.125 pCi/g Europium-155 U 0.00665 +/-0.109 0.0684 +/-0.109 0.137 pCi/g Lead-212 0.756 +/-0.0938 0.0352 +/-0.0938 0.0704 pCi/g Lead-214 0.584 +/-0.110 0.0456 +/-0.110 0.0911 pCi/g Manganese-54 U - 0.00807 +/-0.0244 0.0207 +/-0.0244 0.0414 pCi/g Niobium-94 U - -0.00113 +/-0.0231 0.0194 +/-0.0231 0.0388 pCi/g Potassium-40 12.7 +/-1.21 0.176 +/-1.21 0.351 pCi/g Radium-226 0.537 +/-0.114 0.0378 +/-0.114 0.0756 pCi/g Silver-108m U - 0.00738 +/-0.0233 0.0201 +/-0.0233 0.0401 pCi/g Thallium-208 0.236 +/-0.0626 0.0207 +/-0.0626 0.0415 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr90, solid-ALL FSS Strontium-90 U -0.0025 +/-0.0208 0.0178 +/-0.0208 0.0412 pCi/g KSDI 04/03/07 1647 621124 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi/g Tritium U 0.300 +/-0.972 0.802 +/-0.972 1.68 pCi/g AXD2 03/31/07 1652 621141

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-015F Project: YANK01204 Sample ID: 183255016 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 AIl, FSS Carbon-14 U -0.0313 +/-0.0874 0.0741 +/-0.0874 0. 152 pCi/g AXD2 03/30/07 2258 621144 Liquid Scint Fe55, Solid-ALL FSS lron-55 U -7.82 +/-34.9 25.2 +/-34.9 53.1 pCi/g MXPI 04/02/07 2146 621136 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -2.57 +/-10.6 9.00 +/-10.6 18.9 pCi/g MXPI 04/02/07 1654 621137 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.13 +/-0.225 0.192 +/-0.225 0.393 pCi/g MXPI 04/03/07 1453 621139 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu- I-RC Modified 3 DOE EML HASL-300, Pu-I I-RC Modified 4 DOE EML HASL-300, Pu-I I-RC Modified 5 DOE EML HASL-300, Pu-I I-RC Modified 6 EML HASL 300, 4.5.2.3 7 EPA 905.0 Modified 8 EPA 906.0 Modified 9 EPA EERF C-01 Modified 10 DOE RESL Fe-I, Modified 11 DOE RESL Ni-I, Modified 12 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Tracer Alphaspec Am241, Cm, Solid ALL 70 (15%-125%)

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

Plutonium-242 Tracer Liquid Scint Pu241, Solid-ALL FS 79 (25%-I 25%)

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

Iron-59 Tracer Liquid Scint Fe55, Solid-ALL FS 60 (15%-125%)

Nickel Carrier Liquid Scint Ni63, Solid-ALL FS 73 (25%-125%)

67

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-015F Project: YANK01204 Sample ID: 183255016 Client ID: YANK001 Vol. Recv.:

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

Technetium-99m Tracer Liquid Scint Tc99, Solid-ALL FS 85 (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.

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-016B Proiect: YANK01204 Sample ID: 183255017 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 8.12%

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 0.805 +/-0.191 0.0765 +/-0.191 0.153 pCi/g MJHI 04/03/07 0357 621154 Americium-241 U 0.0839 +/-0.0977 0.0839 +/-0.0977 0.168 pCi/g Bismuth-212 0.481 +/-0.384 0.164 +/-0.384 0.328 pCi/g Bismuth-214 0.764 +/-0.131 0.0389 +/-0.131 0.0777 pCi/g Cesium-134 U 0.0521 +/-0.0374 0.0274 +/-0.0374 0.0547 pCi/g Cesium-137 Ul 0.00 +/-0.0516 0.0236 +/-0.0516 0.0472 pCi/g Cobalt-60 U 0.0121 +/-0.0265 0.0232 +/-0.0265 0.0463 pCi/g Europium-152 U -0.00745 +/-0.0824 0.0602 +/-0.0824 0.120 pCi/g Europium-154 U 0.00741 +/-0.0785 0.0664 +/-0.0785 0.133 pCi/g Europium- 155 U 0.0711 +/-0.080 0.0751 +/-0.080 0.150 pCi/g Lead-212 0.717 +/-0.105 0.0472 +/-0.105 0.0943 pCi/g Lead-214 0.784 +/-0.122 0.045 +/-0.122 0.0899 pCi/g Manganese-54 U 0.00822 +/-0.0232 0.0207 +/-0.0232 0.0415 pCi/g Niobium-94 U 0.023 +/-0.0246 0.0211 +/-0.0246 0.0421 pCi/g Potassium-40 15.3 +/-1.35 0.132 +/-1.35 0.264 pCi/g Radium-226 0.764 +/-0.131 0.0389 +/-0.131 0.0777 pCi/g Silver-108m U -0.00592 +/-0.0236 0.0204 +/-0.0236 0.0408 pCi/g Thallium-208 0.296 +/-0.0566 0.0228 +/-0.0566 0.0456 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00643 +/-0.0183 0.0143 +/-0.0183 0.0339 pCi/g KSDI 04/03/07 1647 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 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 69

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-016B Project: YANK01204 Sample ID: 183255017 Client Vol. Recv.: YANKOO ID:

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.

70

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-017B Project: YANK01204 Sample ID: 183255018 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 6.51%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Pi Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.958 +/-0.202 0.0666 +/-0.202 0.133 pCi/g MJHI 03/31/07 1242 621154 Americium-241 U 0.0532 +/-0.116 0.0926 +/-0.116 0.185 pCi/g Bismuth-212 0.393 +/-0.259 0.170 +/-0.259 0.340 pCi/g Bismuth-214 0.644 +/-0.108 0.0407 +/-0.108 0.0814 pCi/g Cesium-I 34 UI 0.00 +/-0.0364 0.0278 +/-0.0364 0.0556 pCi/g Cesium-137 U -0.00262 +/-0.0251 0.0217 +/-0.0251 0.0434 pCi/g Cobalt-60 U -0.00167 +/-0.0263 0.0225 +/-0.0263 0.045 pCi/g Europium-152 U -0.0302 +/-0.0864 0.0545 +/-0.0864 0.109 pCi/g Europium-154 U 0.0292 +/-0.080 0.0713 +/-0.080 0.142 pCi/g Europium-155 U 0.0405 +/-0.0697 0.0655 +/-0.0697 0.131 pCi/g Lead-212 1.01 +/-0.111 0.0323 +/-0.111 0.0647 pCi/g Lead-214 0.724 +/-0.111 0.040 +/-0.111 0.080 pCi/g Manganese-54 U 0.00142 +/-0.0251 0.0217 +/-0.0251 0.0433 pCi/g Niobium-94 U -0.00464 +/-0.0245 0.021 +/-0.0245 0.0421 pCi/g Potassium-40 15.9 +/-1.43 0.191 +/-1.43 0.381 pCi/g Radium-226 0.644 +/-0.108 0.0407 +/-0.108 0.0814 pCi/g Silver-108m U 0.000158 +/-0.0229 0.0191 +/-0.0229 0.0382 pCi/g Thallium-208 0.316 +/-0.0583 0.0191 +/-0.0583 0.0382 pCi/g Rad Gas Flow Proportional Counting GFPC,SO9O, solid-ALL FSS Strontium-90 U 0.0163 +/-0.020 0.0141 +/-0.020 0.0338 pCi/g KSDI 04/03/07 1647 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 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 71

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-017B Project: YANK01204 Sample ID: 183255018 Client ID: YANK001 Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1D Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium Carrier GFPC, Sr90, solid-ALL FSS 69 (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.

72

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-018B Project: YANK01204 Sample ID: 183255019 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 27-MAR-07 Receive Date: 29-MAR-07 Collector: Client Moisture: 4.73%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1P Rad Gamma Spec Analysis Gamma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.670 +/-0.200 0.0768 +/-0.200 0.154 pCi/g MJHI 03/31/07 1243 621154 Americium-241 U 0.0878 +/-0.101 0.0874 +/-0.101 0.175 pCi/g Bismuth-212 0.484 +/-0.300 0.146 +/-0.300 0.293 pCi/g Bismuth-214 0.572 +/-0.106 0.0379 +/-0.106 0.0757 pCi/g Cesium-134 U 0.0406 +/-0.0287 0.024 +/-0.0287 0.048 pCi/g Cesium-1 37 U 0.00567 +/-0.0255 0.022 +/-0.0255 0.044 pCi/g Cobalt-60 U -0.0185 +/-0.0273 0.0215 +/-0.0273 0.0431 pCi/g Europium-152 U 0.0503 +/-0.101 0.0538 +/-0.101 0.108 pCi/g Europium-154 U -0.0673 +/-0.0973 0.0635 +/-0.0973 0.127 pCi/g Europium-155 U 0.0839 +/-0.0677 0.0618 +/-0.0677 0.124 pCi/g Lead-212 0.831 +/-0.0922 0.0318 +/-0.0922 0.0636 pCi/g Lead-214 0.705 +/-0.114 0.0384 +/-0.114 0.0767 pCi/g Manganese-54 U -0.003 +/-0.0229 0.0196 +/-0.0229 0.0391 pCi/g Niobium-94 U -0.00294 +/-0.0221 0.0192 +/-0.0221 0.0384 pCi/g Potassium-40 13.7 +/-1.26 0.156 +/-1.26 0.312 pCi/g Radium-226 0.572 +/-0.106 0.0379 +/-0.106 0.0757 pCi/g Silver-108m U -0.00818 +/-0.0233 0.0173 +/-0.0233 0.0345 pCi/g Thallium-208 0.277 +/-0.0536 0.0192 +/-0.0536 0.0385 pCi/g Rad Gas Flow Proportional Counting GFPC,Sr9O, solid-ALL FSS Strontium-90 U 0.00138 +/-0.0171 0.0141 +/-0.0171 0.0339 pCi/g KSDI 04/03/07 1647 621124 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 LXM2 03/29/07 1057 621103 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 73

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: April 5, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0003-018B Project: YANK01204 Sample ID: 183255019 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 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.

74

QUALITY CONTROL DATA 75

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Report Date: April 5, 2007

'lient : Connecticut Yankee Atomic Power Page 1 of 9 362 Injun Hollow Rd East Hampton, Connecticut ontact: Mr. Jack McCarthy Vorkorder: 183255 irmname NOM Sample Qual QC Units RPD% REC% Ran2e Anlst Date Time id Alpha Spec itch 621107 183245006 DUP mericium-241 U -0.0394 U -0.0452 pCi/g 14 (0%- 100%) GXRI 04/03/07 09:33 Uncert: +/-0.0816 +/-0.0683 TPU: +/-0.0818 +/-0.0684 urium-242 U 0.00 U 0.00 pCi/g 0 (0% - 100%)

Uncert: +/-0.083 +/-0.0676 TPU: +/-0.083 +/-0.0676 urium-243/244 U 0.00 U -0.0555 pCi/g. 200 (0% - 100%)

Uncert: +/-0.0794 +/-0.0411 TPU: +/-0.0794 +/-0.0418 QC1201305243 LCS meficium-24 I 12.4 11.2 pCi/g 90 (75%-125%)

Uncert: +/-1.06 TPU: +/-1.79 urium-242 U 0.00 pCi/g Uncert: +/-0.0518 TPU: +/-0.0518 urium-243/244 14.8 14.2 pCi/g 96 (75%-125%)

Uncert: +/-1.19 TPU: +/-2.18 QC1201305240 MB mericium-241 U -0.0487 pCi/g Uncert: +/-0.0641 TPU: +/-0.0641 urium-242 U 0.00 pCi/g Uncert: +/-0.0603 TPU: +/-0.0603 urium-243/244 U 0.0459 pCi/g Uncert: +/-0.0861 TPU: +/-0.0863 QC1201305242 183245006 MS mericium-241 13.5 U -0.0394 12.0 pCi/g 89 (75%-125%)

Uncer: +/-0.0816 +/-1.16 TPU: +/-0.0818 +/-1.94 urium-242 U 0.00 U 0.0303 pCi/g Uncer: +/-0.083 +/-0.0594 TPU: +/-0.083 +/-0.0595 urium-243/244 16.1 U 0.00 14.9 pCi/g 93 (75%-125%)

Uncert: +/-0.0794 +/-1.29 TPU: +/-0.0794 +/-2.33 itch 622105 QC1201307489 183245006 DUP lutonium-241 U -3.12 U -8.22 pCi/g 0 (0%- 100%) BXLI 04/05/07 15:31 76

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 183255 Page 2 of 9 irmname NOM Sample Oual QC Units RPD% REC% Range AnIst Date Time irmname id Alpha Spec itch 622105 Uncert: +/-10.1 +/-9.75 TPU: +/-10.1 +/-9.75 QC1201307491 LCS lutonium-241 138 113 pCi/g 82 (75%-125%) 04/05/07 16:04 Uncert: +/-14.9 TPU: +/-19.1 QC1201307488 MB tutonium-241 U -1.9 pCi/g 04/05/07 15:15

+/-11.3 Uncert:

TPU: +/-11.3 QC1201307490 183245006 MS lutonium-241 140 U -3.12 120 pCi/g 86 (75%-125%) 04/05/07 15:48 Uncert: +/-10.1 +/-13.1 TPU: +/-10.1 +/-17.4 itch 622351 QC1201308035 183245006 DUP lutonium-238 U 0.0429 U -0.0147 pCi/g 409 (0% - 100%) GXR1 04/04/07 22:58 Uncert: +/-0.0969 +/-0.0204 TPU: +/-0.0971 +/-0.0204 lutonium-239/240 U 0.059 U 0.0306 pCi/g 63 (0% - 100%)

Uncert: +/-0.0943 +/-0.060 TPU: +/-0.0946 +/-0.0601 QC1201308037 LCS lutonium-238 U 0.0151 pCi/g (75%-125%)

Uncert: +/-0.0602 TPU: +/-0.0603 lutonium-239/240 12.7 12.9 pCi/g 102 (75%-125%)

Uncert: +/-1.20 TPU: +/-1.91 QC1201308034 MB lutonium-238 U -0.00689 pCi/g Uncert: +/-0.0135 TPU: +/-0.0135 lutonium-239/240 U -0.0138 pCi/g Uncert: +/-0.0191 TPU: +/-0.0192 QC1201308036 183245006 MS lutonium-238 U 0.0429 U 0.0767 pCi/g (75%-1 25%)

Uncert: +/-0.0969 +/-0.105 TPU: +/-0.0971 +/-0.106 lutonium-239/240 13.7 U 0.059 14.9 pCi/g 109 (75%-125%)

Uncert: +/-0.0943 +/-1.32 TPU: +/-0.0946 +/-2.15 id Gamma Spec itch 621154 QC1201305362 183255001 DUP ctinium-228 0.954 0.882 pCi/g 8 (0%- 100%) MJHI 03/31/07 12:45 Uncert: +/-0.263 +/-0.205

+/-0.205 77

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 183255 Page 3 of 9 irmname NOM Sample Oual QC Units RPD% REC% Range Anist Date Time irmname id Gamma Spec itch 621154 TPU: +/-0.263

.mericium-241 U -0.0315 U 0.0304 pCi/g 11200 (0% - 100%)

Uncert: +/-0.0533 +/-0.120 TPU: +/-0.0533 +/-0.120 ismuth-212 0.762 0.659 pCi/g 15 (0% - 100%)

Uncert: +/-0.469 +/-0.270 TPU: +/-0.469 +/-0.270 ismuth-214 0.600 0.608 pCi/g I (0%- 100%)

Uncert: +/-0.134 +/-0.116 TPU: +/-0.134 +/-0.116 esium-134 U 0.0404 U 0.0339 pCi/g 18 (0%- 100%)

Uncert: +/-0.0352 +/-0.0395 TPU: +/-0.0352 +/-0.0395 esium-137 U -0.0638 U 0.0127 pCi/g 300 (0%- 100%)

Uncert: +/-0.0378 +/-0.0256 TPU: +/-0.0378 +/-0.0256 obalt-60 U 0.00635 U 0.0181 pCi/g 96 (0% - 100%)

Uncert: +/-0.0381 +/-0.0256 TPU: +/-0.0381 +/-0.0256 uropium-152 U -0.107 U -0.0149 pCi/g 151 (0% - 100%)

Uncert: +/-0.0919 +/-0.074 TPU: +/-0.0919 +/-0.074 uropium-154 U -0.03 U -0.0726 pCi/g 83 (0% - 100%)

Uncert: +/-0.0926 +/-0.0885 TPU: +/-0.0926 +/-0.0885 uropium-155 U 0.0313 U -0.0474 pCi/g 976 (0%- 100%)

Uncert: +/-0.0747 +/-0.0683 TPU: +/-0.0747 +/-0.0683 ead-212 0.909 0.842 pCi/g 8 (0%- 20%)

Uncert: +/-0.110 +/-0.0893 TPU: +/-0.110 +/-0.0893 ead-214 0.596 0.603 pCi/g I (0%- 20%)

Uncert: +/-0.126 +/-0.0876 TPU: +/-0.126 +/-0.0876 langanese-54 U -0.0134 U -0.0138 pCi/g 3 (0%- 100%)

Uncert: +/-0.031 +/-0.0243 TPU: +/-0.031 +/-0.0243 iobium-94 U 0.000192 U 0.00213 pCi/g 167 (0% - 100%)

Uncert: +/-0.0307 +/-0.0218 TPU: +/-0.0307 +/-0.0218 otassium-40 13.9 14.6 pCi/g 5 (0% - 20%)

Uncert: +/-1.41 +/-1.33 TPU: +/-1.41 +/-1.33 adium-226 0.600 0.608 pCi/g I (0% - 100%)

Uncert: +/-0.134 +/-0.116 TPU: +/-0.134 +/-0.116 ilver-108m U -0.00202 U -0.00702 pCi/g III (0%- 100%)

Uncert: +/-0.0285 +/-0.0218 78

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 183255 Page 4 of 9 irmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time id Gamma Spec ktch 621154 TPU: +/-0.0285 +/-0.0218 hallium-208 0.273 0.284 pCi/g 4 (0% - 100%)

Uncert: +/-0.0629 +/-0.0608 TPU:: +/-0.0629 +/-0.0608 QC1201305363 LCS ctinium-228 1.04 pCi/g 03/31/07 12:57 Uncert: +/-0.640 TPU: +/-0.640 mericium-241 16.0 13.9 pCi/g 87 (75%-125%)

Uncert: +/-1.23 TPU: +/-1.23 ismuth-212 1.15 pCi/g Uncert: +/-0.926 TPU: +/-0.926 ismuth-214 0.671 pCi/g Uncert: +/-0.363 TPU: +/-0.363 esium- 134 U 0.0945 pCi/g Uncert: +/-0.114 TPU: +/-0.114 esium- 137 6.20 5.46 pCi/g 88 (75%-125%)

Uncert: +/-0.526 TPU: +/-0.526 obalt-60 9.32 9.18 pCi/g 99 (75%-125%)

Uncert: +/-0.676 TPU: +/-0.676 uropium- 152 U 0.0996 pCi/g Uncert: +/-0.234 TPU: +/-0.234 uropium- 154 U -0.128 pCi/g Uncert: +/-0.211 TPU: +/-0.211 uropium- 155 U 0.0283 pCi/g Uncert: +/-0.261 TPU: +/-0.261 ead-212 0.951 pCi/g Uncert: +/-0.253 TPU: +/-0.253 ead-214 0.702 pCi/g Uncert: +/-0.256 TPU: +/-0.256 Ianganese-54 U 0.0815 pCi/g Uncert: +/-0.103 TPU: +/-0.103 iobium-94 U -0.0328 pCi/g Uncert: +/-0.0835 TPU: +/-0.0835 otassium-40 U 1.00 pCi/g 79

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 183255 Page 5 of 9 irmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time id Gamma Spec itch 621154 Uncert: +/-0.801 TPU: +/-0.801 adiurn-226 0.671 pCi/g (75%-1 25%)

Uncert: W+-0.363 TPU: +/-0.363 ilver-108m U 0.0761 pCi/g Uncert: +/-0.076 TPU: +/-0.076 hallium-208 0.322 pCi/g Uncert: +/-0.170 TPU: +/-0.170 MB ctinium-228 U 0.0506 pCi/g 03/31/07 12:46 Uncert: +/-0.0618 TPU: +/-0.0618 mericium-241 U -0.0283 pCi/g Uncert: +/-0.0485 TPU: +/-0.0485 ismuth-212 U 0.0823 pCi/g Uncert: +/-0.107 TPU: +/-0.107 ismuth-214 U 0.00442 pCi/g Uncert: +/-0.0359 TPU: +/-0.0359 esium-134 U -0.00565 pCi/g Uncert: +/-0.015 TPU: +/-0.015 esium-1 37 U 0.00478 pCi/g Uncert: +/-0.0141 TPU: +/-0.0141 obalt-60 U -0.00475 pCi/g Uncert: +/-0.0154 TPU: +/-0.0154 uropium-152 U -0.048 pCi/g Uncert: +/-0.0387 TPU: +/-0.0387 uropium- 154 U -0.0385 pCi/g Uncert: +/-0.045 TPU: +/-0.045 uropium-155 U -0.00386 pCi/g Uncert: +/-0.0347 TPU: +/-0.0347 ead-212 U -0.0283 pCi/g Uncert: +/-0.0279 TPU: +/-0.0279 ead-214 U -0.0273 pCi/g Uncert: +/-0.033 TPU: +/-0.033 so

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 183255 Page 6 of 9 irmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time id Gamma Spec itch 621154 langanese-54 U -0.0018 pCi/g Uncert: +/-0.0118 TPU: +/-0.0118 iobium-94 U -0.00473 pCi/g Uncert: +/-0.0138 TPU: +/-0.0138 otassium-40 U 0.0105 pCi/g Uncert: +/-0.198 TPU: +/-0.198 adium-226 U 0.00442 pCi/g Uncert: +/-0.0359 TPU: +/-0.0359 ilver- 108m U 0.0111 pCi/g Uncert: +/-0.0129 TPU: +/-0.0129 hallium-208 U 0.0093 pCi/g Uncert: +/-0.0264 TPU: +/-0.0264 id Gas Flow itch 621124 QC1201305278 183255001 DUP trontium-90 U -0.0138 U -0.00104 pCi/g 0 (0% - 100%) KSDI 04/03/07 16:47 Uncert: +/-0.0138 +/-0.0179 TPU: +/-0.0138 +/-0.0179 QC1201305280 LCS trontium-90 1.43 1.44 pCi/g 101 (75%-125%) 04/03/07 16:47 Uncert: +/-0.0895 TPU: +/-0.0994 QC1201305277 MB trontium-90 U -0.0136 pCi/g 04/03/07 16:47 Uncert: +/-0.0127 TPU: +/-0.0127 QC1201305279 183255001 MS trontium-90 1.44 U -0.0138 1.18 pCi/g 82 (75%-125%) 04/03/07 16:47 Uncert: +/-0.0138 +/-0.0879 TPU: +/-0.0138 +/-0.0949 id Liquid Scintillation itch 621136 QC1201305301 183245006 DUP on-55 U -26.4 U 2.65 pCi/g 0 (0% - 100%) VIXPI 04/02/07 22:19 Uncert: +/-34.3 +/-34.0 TPU: +/-34.3 +/-34.0 QC1201305303 LCS on-55 1180 1130 pCi/g 96 (75%-125%) 04/02/07 22:51 Uncert: +/-61.3 TPU: +/-98.0 QC1201305300 MB on-55 U -26.4 pCi/g 04/02/07 22:02 a L

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 183255 Page 7 of 9 irmname NOM Sample Qual OC Units RPD% REC % Range Anlst Date Time ud Liquid Scintillation itch 621136 Uncert: +/-28.2 TPU: +/-28.2 QC1201305302 183245006 MS on-55 1230 U -26.4 1180 pCi/g 96 (75%-125%) 04/02/07 22:35 Uncert: +/-34.3 +/-69.4 TPU: +/-34.3 +/-110 itch 621137 QC1201305305 183245006 DUP ickel-63 U -11.2 U -8.44 pCi/g 0 (0% - 100%) VIXP1 04/02/07 17:27 Uncert: +/-9.41 +/-10.1 TPU: +/-9.41 +/-10.1 QC1201305307 LCS ickel-63 556 477 pCi/g 86 (75%-125%) 04/02/07 17:59 Uncert: +/-25.4 TPU: +/-30.6 QC1201305304 MB ickel-63 U 2.75 pCi/g 04/02/07 17:10 Uncert: +/-11.6 TPU: +/-11.6 QC1201305306 183245006 MS ickel-63 591 U -11.2 505 pCi/g 85 (75%-125%) 04/02/07 17:43 Uncert: +/-9.41 +/-27.3 TPU: +/-9.41 +/-33.0 itch 621139 QC1201305311 183245006 DUP echnetium-99 U -0.155 U -0.139 pCi/g 0 (0% - 100%) VIXPI 04/03/07 15:56 Uncert: +/-0.229 +/-0.236 TPU: +/-0.229 +/-0.236 QC1201305313 LCS echnetium-99 19.6 16.4 pCi/g 84 (75%-125%) 04/03/07 17:00 Uncert: +/-0.466 TPU: +/-0.623 QC1201305310 MB echnetium-99 U -0.281 pCi/g 04/03/07 15:25 Uncert: +/-0.210 TPU: +/-0.210 QC1201305312 183245006 MS echnetium-99 20.0 U -0.155 15.0 pCi/g 75 (75%-125%) 04/05/07 09:59 Uncert: +/-0.229 +/-0.676 TPU: +/-0.229 +/-0.776 itch 621141 QC1201305317 183255002 DUP ritium U -0.106 U 0.451 pCi/g 0 (0% - 100%) kXD2 03/31/07 18:55 Uncert: +/- 1.06 +/-1.03 TPU: +/-1.06 +/-1.03 QC1201305319 LCS ritium 11.7 12.0 pCi/g 102 (75%-125%) 03/31/07 20:57 Uncert: +/-1.54 TPU: +/-1.55 R2

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 183255 Page 8 of 9 urmname NOM Sample Qual OC Units RPD% REC% Ranee Anlst Date Time ud Liquid Scintillation itch 621141 QC1201305316 MB ritium U -0.232 pCi/g 03/31/07 17:53 Uncert: +/-0.991 TPU: +/-0.991 QC1201305318 183255002 MS ritium 11.9 U -0.106 13.2 pCi/g 111 (75%-125%) 03/31/07 19:56 Uncert: +/-1.06 +/-1.63 TPU: +/-1.06 +/-1.65 itch 621144 QC1201305325 183245006 DUP arbon-14 U 0.0236 U -0.0162 pCi/g 0 (0% - 100%) kXD2 04/02/07 15:22 Uncert: +/-0.090 +/-0.0934 TPU: +/-0.090 +/-0.0934 QC1201305327 LCS arbon-14 7.09 7.02 pCi/g 99 (75%-125%) 04/02/07 17:28 Uncert: +/-0.203 TPU: +/-0.231 QC1201305324 MB arbon-14 U -0.0233 pCi/g 04/02/07 14:19 Uncert: +/-0.0925 TPU: +/-0.0925 QC1201305326 183245006 MS arbon-14 7.16 U 0.0236 6.92 pCi/g 97 (75%-125%) 04/02/07 16:25 Uncert: +/-0.090 +/-0.202 TPU: +/-0.090 +/-0.229 qotes:

Fhe 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 83

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 183255 Page 9 of 9 irmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Y

A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded

[VA 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.

The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the imple is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is

ss than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result.

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

Vhere the analytical method has been performed under NELAP certification, the analysis has met all of the

-quirements of the NELAC standard unless qualified on the QC Summary.

R4

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD ATTACHMENT 4 (DQA RESULTS)

Revision 0

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD ATTACHMENT 4A (PRELIMINARY DATA REVIEW)

Revision 0

SOUTHWEST 115kV SWITCHYARD SURVEY UNIT 9312-0003 RELEASE RECORD Attachment 4 Survey Unit: 9312-0003 Area Description RCA, Southwest 115 kV Switchyard Classification 1 Survey Media Surface Soils Type of Survey Final Status Survey Number of Measurements 15 Static, 3 Judgmental STATISTICS on TOTAL STATISTICS on NON-POPULATION PARAMETRIC POPULATION Cs-137 Co-60 Sr-90 Cs-137 Co-60 Sr-90 DCGLQp (pCilg): 4.75E+00 2.29E+00 9.30E-01 DCGLop (pCi/g): 4.75E+00 2.29E+00 9.30E-01 Minimum Value: -6.68E-02 -2.21 E-02 -1.38E-02 Minimum Value: -6.68E-02 -2.21 E-02 -1.38E-02 Maximum Value: 2.25E-02 1.78E-02 3.65E-02 Maximum Value: 2.25E-02 1.78E-02 3.65E-02 Mean: -1.73E-02 8.93E-04 4.22E-03 Mean: -2.10E-02 1.61 E-03 3.46E-03 Median: -6.48E-03 3.04E-03 1.68E-03 Median: -1.28E-02 4.24E-03 1.08E-03 Standard Deviation: 2.87E-02 1.14E-02 1.22E-02 Standard Deviation: 3.02E-02 1.10E-02 1.30E-02 Cs-137 Co-60 Sr-90 GPS CoordinatesTT 1FT1 Sample ID Result 2a MDA Identified Result j 2a MDA IIdentified Result j 2 2o" MDA

[Identified Fraction of DCGL North East (pCl/g) (pCl/g) (pcl/g) (pCi/g) (pCl/g) (pcI/g) 9312-0003-001F 236545.81 1 668643.81 -6.38E-02 0.038 5.32E-02 6.35E-03 0.038 6.44E-02 -1.38E-02 0.014 3.42E-02 -0.025 9312-0003-002F . . . .---.. . . . .. . . 1 .668678.94

. . .236545.81 -. . . . . -.

. . . . . . . .-1.90E-03 0.028 ..4.83E-02 . . . . . . -----

. . . . . . .. . . . . . . .. .6,19E-03 ----

0.036 ------- --- ----

6.19E-02 ---- .. ... .. ...--

-2.55E-03 .. .. - 3.50E-02

... .. .. ... 0.017 ----------------- 0.000 9312-0003-003F 236515.39 . 668661.38 -1.28E202 0.023 3.76E-02 1.83E-03 0.025 4.11E-02 1.20E-02 0.024 4.26E-02 0.011 9312-0003-004F 236515.39 66869651 1-19E-02 0.025 440E-02 -2.21E-02 0.024 3.67E-02 1.91 E-02 0.025 427E-02 0.013 9312-0003-005F 236515.39 668801.90 -9.37E-03 0.024 3.96E-02 1.78E-02 0.024 4.33E-02 3.25E-03 0.018 3.53E-02 0.009 9312-0003-006F 236515.39

..... ..... ..... ..... ... ..-- ..... ..... i 668837.03

... ... ... ...-3.58E-03

... ... .. 0.035 5.84E-02

.. .. ... .;... .. .. ... .. ..-2.86E-03

... 0.040 --6.62E-02

.. -.--.... ... .. .. ...-1.19E-02


.. ..0.017

.. .. ... .----.. .. ... ..--...4.01E-02

.. .. ...--.. ... .. .. .. -0.015 9312-0003-007F 236484.96 i 668678.94 -1.38E-02 0.020 3.24E-02 1.06E-02 0.022 3.86E-02 3.65E-02 0.027 4.13E-02 + 0.041 9312-0003-008F 236484.96 i 668714.07 2.25E-02 0.043 5.34E-02 -7.12E-03 0.035 5532 02 -1.60E-03 0.016 3.28E-02 0.000 9312-0003-009F


236484.96 - I!..668749.21

...... ...-.- -8.06E-04 0.022 3.83E-02

.----------------...---------------...................... 4.92E-03


.. 0.024 4.09E-02


1.08E-03

.... + --..


..... 0.017........ 3.36E-02

........ 0.003 9312-0003-01OF 236484.96 I 668784.34 1.21E-02 0.033 5.83E-02 1.602-02 0032 568202 4.06203 0020 37702 0.014 9312-0003-011F 236484.96 668819.47-3.382-02 0.042 6.64E-02 -4.28E-03 0.042 6.99E-02 1.54E-02 0.024 4.22E-02 0.008 REVISION 0 Page I of 3

SOUTHWEST 115kV SWITCHYARD SURVEY UNIT 9312-0003 RELEASE RECORD Attachment 4 Cs-137 Co-60 Sr-90 GPS CoordinatesTT1 Sample ID Result

_____j 2ca MDA i Identified Result I 2 2a MDA I IIdentified Result I 2 2o MDA Identified Fraction North East (pCi/g) (pCilg) I (pCI/g) (pCi/g) (pCi/g) (pCl/g) of DCGL 9312-0003-012F 236454.54 668731.64 -6.57E-02 0.031 4.60E-02 -1.55E-02 0.026 4.075-02 1.98E-03 0.024 4.47E-02

-0.018 9312-0003-013F 236454.54 668766.77 -6.68E-02 0.029 4.17E-02 1.09E-02 0.025 4.32E-02 -5.04E-04 0.016 3.14E-02 -0.010 9312-0003-014F 236454.54 668801.90 -5.37E-02 0.033 4.41E-02 4.24E-03 0.029 4.30E-02 -8.62E-03 0.017 3.72E-02 -0.019 9312-0003-015F 236424.11 668784.34 -3.55E-02 0.032 5.11 E-02 -2.82E-03 0.026 4.34E-02 -2.50E-03 0.021 4.12E-02 -0.011 9312-0003-016-B 236553.97 66863024 0.OOE+00 0.052 4.72E-02 1.21E-02 0.027 4.63E-02 6.43E-03 0.018 3.39E-02 0.012 9312-0003-017-B 236522.69 668819.13 -262E03 0.025 4.34E-02 -1.67E-03 0.026 4.50E-02 1.63E-02 0.020 3.38E-02 0.016 9312-0003-018-B 236492.21 1668744.15 5.67E-03 0.026 4.40E-02 -1.85E-02 0.027 4.31-E02 1.38E-03 0.017 3 E- 02 -0.005 REVISION 0 Page 2 of 3

SOUTHWEST 115kV SWITCHYARD SURVEY UNIT 9312-0003 RELEASE RECORD Attachment 4 OTHER RADIONUCLIDES Result F1 MDA 11DCGLop1 I Fraction F

Isotope 2a Identified Sample ID (pCi/g) (pCi/g) (pCl/g) of DCGL I............

9312-0003-001F I............ ............

................. Cs-134 4.04E-02 I...........

i.................. 0.035 .......................

6.54E-02 2.8E+00 ..I...........

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

0.014 9312-0003-002F

........... Am-241

........................... 4.84E-02 i ......................

.......... 0.042 ..i...................

6.91E-02

!.............................. I............ +

................................ 1.6E+01 ....................

.0.003 i............................ ............

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

9312-0003-003F .........................

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

1-2.92E-02 i ............................

Mn-54 0.025 .... i...........................

3.63E-02 ... i........................

+I. ...............................

1.OE+01 i.....................

0.003...........

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

9312-0003-004F I.....................................

Eu-155 i................................

7.86E-02 ;..............................

0.068 .. *...............................

1.29E-01 ................................

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

2.4E+02 ............

0.000.........

9312-0003-005F

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

...... . ....................... 3.38E-02 i..............................

................................ 0.026 ..

1................................ 4.84E-02 ................................

i............................... + 2, 8E+00 ..................

}.......................... 0.012............

9312-0003-005F Eu-155 6.29E-02 0.058 1.14E-01 + 2.4E+02 0.000 9312-0003-006F

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

.... 7.84E-02 .........................

i .............................0.050 ....................

7.90E-02 +

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

0.028 ...

9312-0003-007F Eu-152 7.04E-02 i ....... 0.066 ....

I...............I.......... 9.87E-02 ..*... .........................

  • ............................ + 6.1E+00 ...............................

0.012 9312-0003-008F

.... Cs-134 7.43E-02 ...

.............................0.049 ... 7.76E-02 ................................

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

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

...................... 0.027 9312-0003-01OF

.............................. Eu-155

............................... 7.55E-02 ................................

................................... 0.071 i .............................. 1.32E-01 ...................................

............................. + 2.4E+02 ...............................

0.000 i...............................

9312-0003-011F I...........................................

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

................ .7.50E-02

.... 0.074 .... 8.03E-02 .................................

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

i ............................. + 2.8E+00 ........ 0.027 i................................

9312-0003-012F

...... Cs-134

......... 4.42E-02

{..............................0.042 5.17E-02 i ............................. +

. .................... 2.8E+00 i........ .............. 0.016 9312-0003-013F

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

........ 2.88E-02 ... .. 0.028..........................

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

........................... 5.01E-02............

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

  • ............................... 2.8E+00
i. ...... 0.010 9312-0003-014F

........................ Am-241 ...........

....................... 9.47E-02 i......0.092

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

.................. V.. + i.......

i .......................... 1.6E+01 .............. 0.006 i.............................

9312-0003-015F Am-241 1.15E-01 0.093 1.61E-01 + 1.6E+01 0.007 I..........

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

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

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

? ..............................

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

9312-0003-016-B I.............

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

5.21E-02 .....................

0.037... .... i .............................

5.47E-02 .................................

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

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

0.019 9312-0003-018-B Cs-134 4.06E-02 0.029 4.80E-02 + .8E+00 0.015 1 ........................................... ............

9312-0003-018-B Eu-155 i8.39E'02 i 0.068 i1.24E-01 i + i2.4E+02 ! 0.000 REVISION 0 Page 3 of 3

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD ATTACHMENT 4B (GRAPHICAL REPRESENTATION OF DATA)

Revision 0

FREQUENCY PLOT FOR CESIUM-137 Survey Unit: 9312-0003 Survey Unit Name: RCA - Southwest 115 kV Switchyard Mean: -2.1OE-02 pCi/g Frequency Plot For Cs-137 10 8-6-t LL 4 2

0 I,-.M II I . I

-5.56E- -4.45E- -3.33E- -2.22E- -1.10E- 1.75E- 1.13E- 2.25E-02 02 02 02 02 04 02 02 Upper End Value (pCilg)

Upper End Observation Observation Value Frequency Frequency

-5.56E-02 3 20%

-4.45E-02 1 7%

-3.33E-02 2 13%

-2.22E-02 0 0%

-1.1OE-02 4 27%

1.750E-04 2 13%

1.134E-02 0 0%

2.25E-02 3 20%

Total: 15 100%

Reviewed by/Date 1 of 1

QUANTILE PLOT FOR CESIUM-137 Survey LJnit: 9312-0003 Survey Unit Name: RCA - Southwest 115 kV Switchyard Miean: -2. l OE-02 pCi/g Quantile Plot For Cs-137 3.OOE-02 2.00E-02 1.00E-02 0.OOE+00 C)

-1.00E-02

.2 -2.00E-02 0

-3.00E-02 QU -4.OOE-02 C

-5.00E-02

[] iz

-6.OOE-02

-7.00E-02

-8.00E-02 0 20 40 60 80 100 Percentage Cs-137 Rank Percentage

-6.68E-02 1 3.3%

-6.57E-02 2 10.0%

-6.38E-02 3 16.7%

-5.37E-02 4 23.3%

-3.55E-02 5 30.0%

-3.3 8E-02 6 36.7%

-1.38E-02 7 43.3%

-1.28E-02 8 50.0%

-9.37E-03 9 56.7%

-3.58E-03 10 63.3%

-1.90E-03 11 70.0%

-8.06E-04 12 76.7%

1.1 9E-02 13 83.3%

1.21 E-02 14 90.0%

2.25E-02 15 96.7%

V. CO~A~Ak~ A Re iewed /Date Reviewed by/Date

FREQUENCY PLOT FOR STRONTIUM-90 Survey Unit: 9312-0003 Survey Unit Name: RCA - Southwest 115 kV Switchyard Mean: 3.46E-03 pCi/g Frequency Plot For Sr-90 6

5 U 4 0

3 0~

0 I...

LL 2

1 0 1. 1

-7.51E- -1.23E- 5.06E- 1.14E- 1.76E- 2.39E- 3.02E- 3.65E-03 03 03 02 02 02 02 02 Upper End Value (pCilg)

Upper End Observation Observation Value Frequency Frequency

-7.51E-03 3 20%

-1.23E-03 3 20%

5.06E-03 5 33%

1.14E-02 0 0%

1.76E-02 2 13%

2.393E-02 1 7%

3.021 E-02 0 0%

3.65E-02 1 7%

Total: 15 100%

-*tA VOCk'.-, P AIk( '4' 19/o -7 ubmitted by/ ate b - d'a-07 Reviewed by/Date 1 of 1

QUANTILE PLOT FOR STRONTIUM-90 Survey Unit: 9312-0003 Survey Unit Name: RCA - Southwest 115 kV Switchyard Mean: 3.46E-03 pCi/g Quantile Plot For Sr-90 4.00E-02 3.OOE-02 U

. 2.OOE-02 C U 0 U

  • ., 1.00E-02 C

'.~ .OOE+00 0 U

-1.00E-02 U _

U

-2.OOE-02 0 20 40 60 80 100 Percentage Sr-90 Rank Percentage

-1.38E-02 1 3.3%

-1.19E-02 2 10.0%

-8.62E-03 3 16.7%

-2.55E-03 .4 23.3%

-2.50E-03 5 30.0%

-1.60E-03 6 36.7%

-5.04E-04 7 43.3%

1.08E-03 8 50.0%

1.98E-03 9 56.7%

3.25E-03 10 63.3%

4.06E-03 11 70.0%

1.20E-02 12 76.7%

1.54E-02 13 83.3%

1.91E-02 14 90.0%

3.65E-02 15 96.7%

~4 ~ r~c0VJI4V 4117 (07 S mitted by* ate Reviewed by/Date

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 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: 0003 WPIR #: N/A Survey Area Name: Southwest 115 kV Classification: 1 TYPE I (a error): 0.05 N: 15 Switchyard Radionuclides: 1st Radionuclide 2nd Radionuclide 3 rd 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 rd Results 4 th Weighted Sum 1-W, Sign Radionuclide Radionuclide Radionuclide Radionuclide (WS)

(pCitg) (pCi/g) (pCi/g) (pCi/g)

-6.38E-02 6.35E-03 -1.38E-02 -0.03 1.03 +1

-1.90E-03 6.19E-03 -2.55E-03 0.00 1.00 +1

-1.28E-02 1.83E-03 1.20E-02 0.01 0.99 +1 1.19E-02 -2.21E-02 1.91E-02 0.01 0.99 +1

-9.37E-03 1.78E-02 3.25E-03 0.01 0.99 +1

-3,58E-03 -2.86E-03 -1.19E-02 -0.01 1.01 +1 ......

-1.38E-02 1.06E-02 3.65E-02 0.04 0.96 +1 2.25E-02 -7.12E-03 -1.60E-03 0.00 1.00 +1

-8.06E-04 4.92E-03 1.08E-03 0.00 1.00 +1 1.21E-02 1.60E-02 4.06E-03 0.01 0.99 +1

-3.38E-02 -4.28E-03 1.54E-02 0.01 0.99 +1

-6.57E-02 -1.55E-02 1.98E-03 -0.02 1.02 +1

-6.68E-02 1.09E-02 -5.04E-04 -0.01 1.01 +1

-5.37E-02 4.24E-03 -8.62E-03 -0.02 1.02 +1

-3.55E-02 -2.82E-03 -2.50E-03 -0.01 1.01 +1 Number of positive differences (S+) 15 Critical Value 11 Surve,y Unit Meets the Acceptance Criteria Performed by: David Wojtkowi'-]ýý- Date: 4/11/2007 Independent Revie w by: Z__L L'1"z Date: 4" -/ 0a -- 2 Page 1 of 1

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD ATTACHMENT 4D (QC SPLIT RESULTS)

Revision 0

Health Physics Procedure 24265-000-GPII-CGGR.-R5]24-000-]Zev.(-,Y-000 Attachment A Health Physics Procedure 24265-O00-GPP-G(JGR-R5 I 24-000-Rev.C Y-000 Attachment A Split Sample Assessment Form Survey Area #: 9312 Survey Unit # 0003 Survey Unit Name: RCA - Southwest 115 kV Switchyard Sample Plan or WPIR#: N/A SML/: 9312-0003-009 Sample

Description:

Comparison of split samples collected from sample measurement location ,49 and analyzed using gamma spectroscopy by off-site Vendor Laboratory. The standard sample was 9312-0003-009F, the comparison sample was 9312-0003-009F1'S.

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

K-40 1.261E01 0.625 20 0.75- 1.33 1.37+01l 0.600 1.09 Y Comments/Corrective Actions: Cs-137 was not detected in sufficient Table is provided to show acceptance criteria used to quantities in the field split results at location 9312-0003-009F to assess split samples.

evaluate in accordance with procedure. Evaluation using the reported results for K-40 resulted in acceptable agreement between the field- .i

  • Areement Rpe_

split results at these locations.. Since K-40 was found to be present at an 4-7 8 -15 0.5 - 2.0 06 - 166 acceptable level, of agreement, no further action is warranted. 16 50 0.5 - 1.33 51 -200 0.80- 1,25

>200 0.85- 1.18 Pi* -db::

b D. V\\jtkowiak Date: Revciwed by: Date:

jjk~

ý4/11/2007 75ý-

j Page I of 1

SOUTHWEST 115 KV SWITCHYARD (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0003 RELEASE RECORD ATTACHMENT 4E (COMPASS POWER CURVE)

Revision 0

S DQA Surface Soil Report Assessment Summary Site: 9312 Planner(s): Wojo Survey Unit Name: 9312-0003 Report Number: 1 Survey Unit Samples: 15 Reference Area Samples: 0 Test Performed: Sign Test Result: Not Performed Judgmental Samples: 0 EMC Result: Not Performed Assessment

Conclusion:

Reject Null Hypothesis (Survey Unit PASSES)

Retrospective Power Curve 1

C 0.9

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0.0 02 0.4 0.6 08 1.0 12 Unity Rule Swn-of-Ratios, including background Prospective Power n 1-beta .. Actual Power

- LBGR , - Estimated Power DCGL ---- Retrospective Power COMPASS v0.0.0 4/17/2007 Page1I