ML071730480

Final Status Survey (FSS) Final Report - Phase VII - Chapter 11 of 19 - Appendix A10, Survey Unit Release Record 9312-0008, 115 Kv West Side Gw Treatment Facility (Former Radiologically Controlled Area)

ML071730480
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Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	03/03/2007
From:	Wojtkowiak D Connecticut Yankee Atomic Power Co
To:	NRC/FSME
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Download: ML071730480 (134)

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Final Status Survey Final Report Phase VII Appendix AlIO Survey Unit Release Record 9312-0008, 115 kV West Side GW Treatment Facility (Former Radiologically Controlled Area)

May 20074

CYAPCO FINAL STATUS SURVEY RELEASE RECORD 11 5KV WEST SIDE GW TREATMENT FACILITY (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 93 12-0008

ý: I Prepared Byl ýý, ý.tTOQt Date: ?-I ?,i10o7 ESS Engi eer Reviewed By:.-r tlDae -2z 2 OJ tF5S Engineer Approved By: L e--J dil ý Date: e7 Technical Suppo'rt Manager Revision 0

11 5KV WEST SIDE GW TREATMENT FACILITY (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 93 12-0008 RELEASE RECORD TABLE OF CONTENTS

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

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

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

4. SURVEY DESIGN ......................................................... 10

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

6. SURVEY RESULTS ....................................................... 14

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

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

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

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

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

12. ANOMALIES............................................................... 22

13. CONCLUSION ............................................................. 23

14. ATTACHMENTS........................................................... 23 14.1 Attachment 1 - Figures (5 pages including cover) 14.2 Attachment 2 - Scan Results (5 pages including cover) 14.3 Attachment 3 - Laboratory Data (85 pages including cover) 14.4 Attachment 4 - DQA Results (15 pages including covers)

TOTAL 133 Revision 0

115KV WEST SIDE GW TREATMENT FACILITY (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 93 12-0008 RELEASE RECORD SURVEY UNIT DESCRIPTION Survey Unit 9312-0008 (115kV West Side GW Treatment Facility) is designated as Final Status Survey (FSS) Class 1 and consists of approximately one thousand three hundred fifty-one (1,351) square meters of open land and is located approximately one thousand six hundred eight six (1,686) feet to the southeast of the site reference coordinate system benchmark used at Haddam Neck Plant (HNP) (see Attachment 1).

The survey unit is bounded as follows: land Survey Unit 93 12-0003 to the north (called north as oriented with the north to south flow of the Connecticut River), land Survey Unit 9306-0000 to the west, land Survey Area 9522 to the south, and land Survey Unit 9312-0007 to the east. As a result of demolition and remediation activities, the area topography is mostly flat and de-vegetated. The survey unit has a moderate slope running from east to west.

The reference coordinates associated with this survey unit are E009 through E0l1 by S069 through S072 (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 (UPS) 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 Classifiation."

The "ClassificationBasis Summary" conducted for Survey Unit 9312-0008 consisted of:

a) A review of the I1OCFR5O.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 "Initial and Supplemental CharacterizationReports" as well as the previous "Classifcation Basis Summaries" was performed. The source documents, the "Connecticut Yankee Haddam Neck Characterization Report" and "Initial Classification for Survey Areas at Connecticut Yankee", were incorporated by reference in LTP, Revision 0.

During plant operation, Survey Unit 9312-0008 was the location of significant reactor support structures and systems, primarily the southwestern quadrant of the 115kV Switchyard. The 115 kV Switchyard was situated outside the former Radiologically Controlled Area (RCA) just south of the Containment building.

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SURVEY UNIT 93 12-0008 RELEASE RECORD This area included two Station Service Transformers and the 115 kV Tie Breaker.

Also, Bus 12 was located at the southwest corner of the yard. In addition to these, there were several other transformers with associated power lines that extended beyond the switchyard area.

A review of the historical documentation indicated a significant number of operational events that may have impacted Survey Unit 93 12-0008. 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;

" The De-mineralized Water Storage Tank (DWST) and the Condensate Storage Tank (CST) were located in adjacent Survey Unit 93 12-0003 to the north of Survey Unit 9312-0008. 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 have contributed to the introduction of contaminated water into these tanks were steam generator tube failures and misalignment of valves.

Historical surveys in the vicinity of these tanks did not indicate any contamination of the surrounding soils. During April of 1999, a shallow monitoring well and a deep monitoring well located to the west of the DWST location produced samples that showed positive results for tritium.

• 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.

" A hot particle was discovered during a routine survey of the area adjacent to the 115 kV Switchyard on June 9, 1977. The contaminant was removed and a resurvey of the entire area and the equipment removed from the area indicated no detectable activity. Gamma spectrometry of the speck indicated it to be Co-60.

• A routine survey of the RCA boundary on February 24, 1989, alerted Radiation Protection personnel to the presence of exposure rates as high as 160 mr/hr at the switchyard trench. The source of contamination was discovered to be a fifty (50) gallon discharge of radioactive liquid into an uncontrolled drain from the Spent Fuel Building. The discharge occurred following filtration of sludge removed from the containment sump. The drain discharged the liquid into the trench at the southeast corner of the 115 kV Switchyard and subsequently into the leach field east of the discharge canal. Identified contaminated soil in the trench area was remediated.

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SURVEY UNIT 93 12-0008 RELEASE RECORD During an annual survey performed on August 1, 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. The contaminated soil in the switchyard and portions of pavement were removed.

Major demolition and remediation activities began in 2002. All systems and components located inside this survey unit 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. All above grade structures were then demolished to grade.

Outside of the Containment shell, extensive soil remediation was performed in Survey Area 9312. A large excavation was created to the north of the Containment that was designated as Excavation #2. This excavation included the area in the vicinity of the Refueling Waster Storage Tank and the Primary Auxiliary Building (PAB) corridor. A second large excavation, designated as Excavation #1 was located over the PAB footprint. A third excavation, designated as Excavation #3 was located in the area between the Containment Building and Spent Fuel Building (SFB). Soil was excavated and removed as adjacent structures were demolished. This process continued until bedrock was exposed. Subsurface structures and footings that remained following demolition and excavation include the Containment Mat, the Cable Vault wall, the Service Building east wall, a remynant of the PAB northwest wall, the Waste Disposal Building footing and miscellaneous fragments of footings and slabs on the bedrock. As with the Containment basement shell, all excavations were backfilled with clean fill following the performance of a radiological assessment. No above grade structures currently reside within Survey Unit 9312-0008.

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-06-12-0Ol. Thirty-five (35) post remediation surface soil samples were collected from the various locations within Survey Area 9312. All samples were collected and analyzed by gamma spectroscopy by an approved off-site laboratory.

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

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SURVEY UNIT 93 12-0008 RELEASE RECORD Table 1 - Basic Statistical Quantities for Cs-137 and Co-60 from the 2006 Post Remediation Survey Cs-137 Co-60 (Pcilg) (Pcilg)

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

FTablee 2 - Distribution Fraction for Detectable Radionuclides in Soil Sample Population _______________

Detected Radionuclide Distribution Fraction Cs-137 0.689 Co-60 0.311 No HTD radionuclides were positively identified in concentrations meeting the accepted criteria for detection (i.e., a result greater than two (2) standard deviations uncertainty). Radionuclide screening or de-selection is a process where an individual radionuclide or aggregates may be considered insignificant and eliminated from the FSS. The criteria for de-selection are concentrations less than 5% for individual radionuclides and less than 10% for aggregates. While Sr-90 was not identified in the soil characterization results, it was decided to include Sr-90 is a radionuclide of concern for this survey unit as Sr-90 was prevalent in the soils prior to remediation.

Therefore, all volumetric soil samples taken as part of the survey design for this survey unit were subjected to direct analysis for Sr-90.

The FSS Engineer performed a visual inspection and walk-down during December 2006 to assess the physical condition of the survey unit, evaluate access points, travel paths and identify potentially hazardous conditions.

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SURVEY UNIT 93 12-0008 RELEASE RECORD This survey area is affected by existing and future groundwater (reference CY memo ISC 06-024) which will be a source of dose from residual radioactivity, as discussed in Section 3 under the Data Quality Objectives.

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

3. DATA QUALITY OBJECTIVES (DQO)

FSS design and planning used the Data Quality Objective (DQO) process as described by the LTP, Procedure RPM 5. 1-11, "Preparationof Final Status Survey P/an," and the "Multi-Agency Radiation Survey and Site Investigation Manual" (MARS SIM). 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 9312-0008 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 termis of surface or mass activity concentrations. Chapter 6 of the LTP describes in detail the modeling used to develop the DCGLs for soil (called Base Case Soil DCGL), existing groundwater radioactivity and future groundwater radioactivity that will be contributed by building basements and footings.

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

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

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SURVEY UNIT 93 12-0008 RELEASE RECORD Equation 1 HTotal=HSoil +H ExistingGW+ H FutureGW 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) mremlyr 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) mremlyr 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) mremlyr TEDE.

Equation 2 19 mrem/yrTr 0 t,, = 15 mrem/yrsoil +/- 2 mrern/iyrExisting Gw+/- 2 mrem/yrFutureoW The allowable dose for soil in this survey unit is fifteen (15) mremlyr TEDE as shown by Equation 2 above. The concentration of residual radioactivity resulting in fifteen (15) mremlyr TEDE is designated as the Operational DCGL (DCGLOp), and has been established for the radionuclides of concern as provided in Table 3.

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SURVEY UNIT 93 12-0008 RELEASE RECORD Table 3 - Radionuclide Specific Base Case Soil DCGLs, Operational DCGLs and Required Minimum Detectable Concentrations (MDCs)

Radionuclide () Base Case Soil Operational Required MDC DCGL DCGL (PC/g) (4)

(PC/g) (2) (pC/g) (3)

H-3 4.12E+02 2.47E+02 1.65E+01 C-45.66E+00 3.40E+00 2.26E-01 Mn-54 1.74E+01 1.04E+01 6.96E-01I Fe-55 2.74E+04 1.64E+04 1.LOE+03 Co-60 3.8 1E+00 2.29E+00 1.52E-01 Ni-63 7.23E+02 4.34E+02 2.89E+01I Sr-90 1.55E+00 9.30E-01 6.20E-02 Nb-94 7.12E+00 4.27E+00 2.85E-01 Tc-99 1.26E+01 7.56E+00 5.04E-01 Ag- 108m 7. 14E+00 4.28E+00 2.86E-01I Cs-134 4.67E+00 2.80E+00 1.87E-01 Cs- 137 7.9 1E+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+0 1 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+0 1 1.74E+/-0 1 1.16E+00 (1) Bold indicates those radionucidies 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) mremlyr TEDE (3) The Operational DCGL is equivalent to achieving fifteen (15) mrem/yr TEDE (4) The required MDC is equivalent to achieving one (1) mremlyr TEDE (5) Americium-24 1 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 09 9

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SURVEY UNIT 93 12-0008 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 9312-0008 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 FinalStatus 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 93 12-0008 (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 I surface soils area, and discrete, elevated areas of contamination was possible, the application of the Elevated Measurement Comparison (EMC) remained an option.

The Sign Test was selected as the non-parametric statistical test. The use of the Sign Test did not require the selection or use of a background reference area, which simplified survey design and implementation. This approach was conservative since it included background Cs-137 as part of the sample set.

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SURVEY UNIT 93 12-0008 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. 1-11ito 0.73 to achieve a relative shift (A/cs) 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 (IlOCFR2O, 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, the acquisition of additional judgmental surface soil samples from within this survey unit was deemed unnecessary.

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.

Table 4 - Sample Measurement Locations with Associated GPS Coordinates Designation Northing Easting 9312-0008-001F 236475.90 668844.00 93 12-0008-002F 236475.90 668877.34 9312-0008-003F 236447.02 668827.33 931 2-0008-004F 236447.02 668860.67 93 12-0008-005F 236447.02 668894.01 93 12-0008-006F 236447.02 668927.35 9312-0008-007F 236418.15 668810.66 9312-0008-008F 1 236418.15 668844.00 1 Revision 0 1I I

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SURVEY UNIT 93 12-0008 RELEASE RECORD Table 4 - (continued)

Designation Northing Easting 9312-0008-009F 236418.15 668877.34 9312-0008-OIOF 236418.15 668910.68 93 12-0008-01IIF 236389.28 668827.33 9312-0008-012F 236389.28 668860.67 9312-0008-013F 236389.28 668894.01 9312-0008-014F 236360.40 668844.00 9312-0008-015F 236360.40 668877.34 Procedure RPM 5.1-11 specifies that 5% of the samples are required to be selected for HTD analysis. Two (2) soil samples, or about 10% of the number of samples that would be used for non-parametric statistical testing were 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 I survey unit, the "Investigation Level" for area scanning and soil sample measurement results are those levels specified in LTP, Table 5-8. Table 5 provides a synopsis of the survey design.

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SURVEY UNIT 93 12-0008 RELEASE RECORD

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-cnnne Feature Design Criteria Basis Survey Unit Land Area 1,351 M2 Based on AutoCAD-LT Type 1 and Type 2 errors were 15 0.05, sigma was 0. 14 pCi/g, the Number of Measurements (1 ytmtcgi)LBGR was set at 0.73 to achieve a (15 ystmatc gid)Relative Shift in the range of 1 and 3

Grid Spacing 10. 14 mn Based on triangular grid Opertioal CGL4.75 pCi/g Cs-137 Administratively set to achieve Opeatona DGL2.29 pCilg Co-60 fifteen (15) mrem/yr TEDE (1) 4.75p~ig Cs137 The Operational DCGL meets the Soil Investigation Level 4.75 pCilg Cs-630 LTP 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 Based upon a Minimum Detectable than the Scan Count Rate (MDCR) of 2,020 cpm Scan Investigation Level MDC(DCGLEMC) and a corresponding MDCSan Of of 2,8 10 cpm plus 13.92 pCi/g Cs-137 and 3.23 pCi/g ambient Co-60 background (1) The allowable dose for soil in this survey unit is fifteen (15) mrem/yr TEDE as the bounding dose from existing and future groundwater has been established based on field data (reference CY memo ISC 06-024)

5. SURVEY IMPLEMENTATION Final status survey field activities were conducted under Work Plan and Inspection Record (WP&IR) 2006-0047. The WP&IR package included a detailed FSS plan, job safety analysis, job planning checklist and related procedures for reference. Daily briefings were conducted to discuss the expectations for job performance and the safety aspects of the survey. The "Daily Survey Journal" was used to document field activities and other information pertaining to the FSS.

A single scan area was established that constituted approximately 100% of the surface area of Survey Unit 93 12-0008. 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 5,9 10 counts per minute (cpm) up to 11,600 cpm.

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SURVEY UNIT 93 12-0008 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.

Fifteen (15) surface soil samples were collected and packaged in accordance with Haddam Neck Plant (IINP) Procedure RPM 5.1-3, "Collection of Sample Media for Final Status Survey" and FSS design. Samples were controlled, transported, stored, and transferred to the off-site laboratory using Chain-of-Custody (COC) protocol in accordance with Procedure RPM 5.1-5, "Chain of Custody for Final Status Survey Samples."

Two (2) samples (931 2-0008-006F and 9312-0008-011IF) were randomly selected for HTD radionuclide analysis.

The implementation of survey specific quality control measures included the collection of one (1) sample (93 12-0008-003F) for "split sample" analysis.

6. SURVEY RESULTS All field survey activities were conducted between January 24, 2007 and January 25, 2007.

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

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SURVEY UNIT 93 12-0008 RELEASE RECORD Table 6 - Scan Results for Sample Measurement Locations Sample Highest Logged Action Level(1 Measurement Reading (kp)> Action Level Location (kcpm) (cm 1 7.06 9.55 NO 2 7.91 9.68 NO 3 7.02 9.41 NO 4 6.88 9.96 NO 5 7.21 10.82 NO 6 7.58 10.88 NO 7 7.51 10.20 NO 8 8.30 10.64 NO 9 6.40 10.44 NO 10 7.49 9.78 NO 11 7.17 10.58 NO 12 7.17 10.25 NO 13 7.08 10.01 NO 14 8.67 11.27 NO L 15 10.80 13.11 NO (1) The action level is based on a measurement in accordance with the FSS plan (MDC(DCGLEMC)of 2,8 10 cpm plus ambient background)

The scan area, that comprised approximately 100% of the total surface area for the survey unit, were scanned for elevated radiation levels. The area was scanned in accordance with the FSS plan on January 24, 2007 through January 25, 2007.

Forty-four (44) scan strips were initially established in this survey unit. Several elevated measurement locations were identified during scanning. Table 7 provides an overview of the scan area survey. Scan results are provided in Attachment 2.

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SURVEY UNIT 93 12-0008 RELEASE RECORD Table 7 - Scan Area Results Highest Action Logged Lvl Elevated Reading Investigation Scan Strips Reading LvlIdentification (2) Sample (kcpm) (kcpm) 1 thru 10 8.45 10.53 None None IlIthru 20 9.07 10.52 None None 21lthru 30 9.83 11.66 None None 931 2-08-ER-00-3 1-1 9312-0008-0161 31 thru 40 14.4 12.61 9312-08-ER-00-32-1 93 12-0008-0171 93 12-08-ER-00-35-1 93 12-0008-0181 41lthru 44 10.7 12.19 None None (1) The action level is based on a measurement in accordance with the FSS plan (MDC(DCGLEMC) Of 2,8 10 cpm plus ambient background)

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

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

Cs-137 was identified in five (5) of the fifteen (15) samples collected for non-parametric statistical testing. Co-60 was not positively identified in any sample from the statistical sample population. The mean of the gamma spectroscopic analysis results for the sample population indicated that Cs-137 was present at levels slightly lower than expected environmental levels for Cs-137 within the vicinity of the IJNP as presented in the Health Physics TSD BCY-HP-0063. A summary of the fifteen (15) samples collected for non-parametric statistical testing results is provided in Table 8.

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SURVEY UNIT 93 12-0008 RELEASE RECORD Table 8 - Summary of Gamma Spectroscopy Results for Surface Soil Samples Comprising the Statistical Sample Population Sample Number Cs-137 Pcilg 93 12-0008-00OIF 1.88E-02 931 2-0008-002F 1.70E-02 93 12-0008-003F 1.27E-02 93 12-0008-004F 0.OOE+/-00 93 12-0008-005F 2. 1OE-03 93 12-0008-006F 5.37E-03 931 2-0008-007F 2. 14E-02 93 12-0008-008F 2. 1OE-02 93 12-0008-009F 8.3 8E-02 93 12-0008-OIOF 3.4 1E-02 93 12-0008-011iF 3.45E-02 93 12-0008-012F -3. 17E-03 93 12-0008-013F 2.20E-02 9312-0008-014F 1.40E-02 9312-0008-0 15F 3.34E-03 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 three (3) of the fifteen (15) samples collected for non-parametric statistical testing. The results of the Sr-90 analysis for the statistical sample population are provided below in Table 9.

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SURVEY UNIT 93 12-0008 RELEASE RECORD Table 9 - Summary of Sr-90 Analysis Results for Surface Soil Samples Sample 1!Number Srilg 9312-0008-OlIF 2.35E-02 93 12-0008-002F 2.96E-01 93 12-0008-003F 3.08E-02 93 12-0008-004F -4.36E-03 9312-0008-005F 5.3 3E-03 93 12-0008-006F 3.56E-03 93 12-0008-007F 3.95E-03 93 12-0008-008F 1.44E-02 93 12-0008-009F -1 .70E-03 93 12-0008-OIOF -5.OOE-03 93 12-0008-01IIF 4.26E-03 93 12-0008-012F 1.38E-02 9312-0008-013F 9.52E-03 93 12-0008-014F 3.92E-03 9312-0008-015F 4.41E-02 In addition to Sr-90, the off-site laboratory also processed, as required by the sample plan, two (2) samples for the full suite of HTD radionuclides as specified in LTP, Table 2-12, "Radionuclides Potentially Present at Haddam Neck Plant" and as provided in Table 3. The requested analyses included alpha spectroscopy, gas proportional counting, and liquid scintillation depending on the radionuclide and the measurement method. All analyses performed met the required minimum MDC.

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

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SURVEY UNIT 93 12-0008 RELEASE RECORD The "sum-of-fractions" or "unity rule" is the mathematical test used to evaluate compliance with radiological criteria for license termination when more than one radionuclide has been determined to be potentially present. The combination of the fractions of each detected radionuclide against their respective Operational DCGL must be less than or equal to one (1). The unity rule is:

Equation 3 C, C2 C, <

DCGL, DCGL 2 DCGL,,

Where: C,, = concentration of radionuclide n and DCGL,, = DCGL of radionuclide n.

The results of the unity rule calculation for the radionuclides of concern in the statistical sample population for Survey Unit 9312-0008 are provided in Table 10 below.

Table 10 - Results of Unity Calculation for Surface Soil Samples Comprising the Statistical Sample Pouain 1()3 SampleNumber Fraction of the Operational DCGLUnt Cs-137 Sr-90Unt 9312-0008-OOIF -

9312-0008-002F 0.004 0.318 0.322 9312-0008-003F - 0.033 0.033 9312-0008-004F -

9312-0008-005F -

9312-0008-006F -

93 12-0008-007F 0.005 -0.005 9312-0008-008F -

9312-0008-009F 0.018 -0.018 93 12-0008-01OF 0.007 -0.007 9312-0008-01IIF 0.007 -0.007 9312-0008-012F -

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SURVEY UNIT 93 12-0008 RELEASE RECORD Table 10 -Results of Unity Calculation for Surface Soil Samples Comprising the Statistical Sample Pouato SampleNumber Fraction of the Operational DCGLUnt Cs-137 Sr-90Unt 9312-0008-014F -

9312-0008-015F -0.047 0.047 (1) "-" indicate that the radionuclide was not positively detected in the sample (2) Although listed as a radionuclide of concern, Co-60 was not positively detected in any of the samples comprising the statistical sample population (3) The Operational DCGL from Table 2 is 4.75 pCilg for Cs-137 and 0.93 pCi/g for Sr-90 to achieve fifteen (15) mremlyr TEDE respectively.

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

Cs-137 was not detected in sufficient quantity in the field split results at location 93 12-0008-003F 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 Three (3) investigative surface soil samples were collected from scan areas exhibiting elevated scan readings. These confirmatory soil samples were analyzed for Cs-137, Co-60 and Sr-90 in accordance with the DQOs used during the survey design.

Investigative Sample designations are listed with the GPS coordinates in Table 11.

Table 11 - Investigative Sample Designations with Associated GPS Coordinates Designation Northing Easting 9312-0008-016-I 236358.70 668868.21 9312-0008-017-I 236354.14 668865.13 9312-0008-018-I 236430.44 668940.73 Revision 0 2 20

11 5KV WEST SIDE GW TREATMENT FACILITY (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 93 12-0008 RELEASE RECORD The samples are denoted as shown in Table 7, with the sample results shown in Table 12 below.

2

[Table 12 - Investigation Sample Results ( )

SmlNubr Cs-137 Co-60 Sr-90 Unity Fraction SamleNumerpci'g pCilg pCilg (_____) _

9312-0008-016-I 4.9 1E-02 7.9 1E-02 4.99E-02 0.099 9312-0008-017-I 4.2 1E-02 -8.17E-03 1.89E-02 0.009 9312-0008-018-I 3.86E-02 -1.15E-02 4.54E-03 -

(1) The Operational DCGL from Table 2 is 4.75 pCilg for Cs-137, 2.29 pCilg for Co-60 and 0.93 pCi/g for Sr-90 to achieve fifteen (15) mrem./yr TEDE respectively.

(2) "-" indicate that the radionuclide was not positively detected in the sample Cs-137 was positively identified in two (2), Co-60 was positively identified in one (1) and Sr-90 was positively identified in one (1) of the three (3) investigative samples taken. All samples results were less than the Operational DCGL for each respective radionuclide and less than the unity value of one (1) when combined.

9. REMEDIATION AND RESULTS Radiological remedial action as described by MARSSIM Section 5.4 was performed in this survey unit prior to FSS. All excavations were characterized and backfilled with "clean" fill prior to performing FSS. In the area where remediation. occurred, the ground area is comprised of barren dirt with no vegetation, and the soils have been graded relatively flat to the corresponding elevation of the adjacent survey units.

The results for Cs- 137 following remediation were well below the Operational DCGL provided in Table 3. Health Physics TSD BCY-HP-0078, "ALARA Evaluation of Soil Remediation in Support of Final Status Survey, " determined that remediation beyond that required to meet the release criteria is unnecessary and that the remaining residual radioactivity in soil was ALARA.

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

11. DATA QUALITY ASSESSMENT (DQA)

The DQO sample design and data were reviewed in accordance with Procedure RPM 5.1-23, "Data Quality Assessment, "for completeness and consistency. The sampling design had adequate power as indicated by the Retrospective Power Curve. The Sign Test was performed on the data and compared to the original assumptions of the DQOs. The evaluation of the Sign Test results demonstrates that the survey unit passes the unrestricted release criteria, thus, the null hypothesis is rejected.

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SURVEY UNIT 93 12-0008 RELEASE RECORD Documentation was complete and legible. Surveys and sample collection were consistent with the DQOs and were sufficient to ensure that the survey unit was properly designated as Class 1.

The preliminary data review consisted of calculating basic statistical quantities (e.g.,

mean, median, standard deviation). The mean and median values are well below the Operational DCGL. Also, the retrospective power curve shows that a sufficient number of samples were collected to achieve the desired power. Therefore, the survey unit meets the unrestricted release criteria with adequate power as required by the DQOs. The basic statistical quantities for the statistical sample population are provided below in Table 13.

Table 13 - Basic Statistical Quantities for Cs-137, Co-60 and Sr-90 from the Final Status Survey Cs-137 Co-60 Sr-90 pCilg Pci/g Pci/g DCGLoP: 4.75E+00 2.29E+/-00 9.30E-0 1 Minimum Value: -3.17E-03 -2.2 1E-02 -5.OOE-03 Maximum Value: 8.38E-02 6.56E-03 2.96E-01 Mean: 1.91E-02 -4.45E-03 2.95E-02 Median: 1.70E-02 -3.88E-03 5.33E-03 Standard Deviation: 2.13E-02 8.32E-03 7.50E-02 The range of the data, about four (4) standard deviations for Cs-137 and Sr-90, was not a particularly large variation. The difference between the mean and median was about 3% to 10% of the standard deviation which indicates some skewness in the data. The data was represented graphically through posting plots, a frequency plot, and a quantile plot. The frequency plot indicates a slight positive skewness as confirmed by the calculated skew of 2.13 for Cs-137 and 3.67 for Sr-90.

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

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

12. ANOMALIES No anomalies were noted.

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SURVEY UNIT 93 12-0008 RELEASE RECORD

13. CONCLUSION Survey Unit 9312-0008 has met the final DQOs of the FSS plan. The ALARA criteria for soils as specified in Chapter 4 of the LTP were achieved. Elevated Measurement Comparison was not required.

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

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

The dose contribution from soil is 0.54 mremlyr 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) mremlyr 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) mremlyr TEDE.

The average total dose from residual radioactivity in this survey unit, including exposures from the three (3) components as described in Section 3, that is, residual radioactivity in soil, existing groundwater radioactivity, and future groundwater radioactivity from the burial of concrete foundations or footings from site buildings containing residual radioactivity will not exceed 4.54 mremlyr TEDE. Therefore, Survey Unit 9312-0008 is acceptable for unrestricted release.

14. ATTACHMENTS 14.1 Attachment 1 - Figures 14.2 Attachment 2 - Scan Results 14.3 Attachment 3 - Laboratory Results 14.4 Attachment 4 - DQA Results Revision 0 23

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SURVEY UNIT 93 12-0008 RELEASE RECORD ATTACHMENT 1 (FIGURES)

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SURVEY UNIT 93t12-0008 RELEASE RECORD ATTACHMENT 2 (SCAN RESULTS)

Revision 0

Survey Unit 9312-0008 Scan Survey Results Sample Location Scans Survey Location Log Date Log Time Reading Alarm >Alarm Probe SIN E-600 SIN Level Level 9312-08-BL-00-01-0 1/24/2007 13:12:00 6.74E+03 1114 1014 931 2-08-SL-00-01 -0 1/24/2007 13:13:00 7.06E+03 9.55E+03 1114 1014 9312-08-BL-Q0-02-0 1/24/2007 13:14:00 6.87E+03 1114 1014 9312-08-SL-00-02-0 1/24/2007 13:15:00 7.91 E+03 9.68E+03 1114 1014 9312-08-BL-00-03-0 1/24/2007 13:17:00 6.60E+03 1114 1014 9312-08-SL-00-03-0 1/24/2007 13:18:00 7.02E+03 9.41 E+03 1114 1014 931 2-08-BL-00-04-0 1/24/2007 13:20:00 7.1 5E+03 1114 1014 9312-08-SL-00-04-0 1/24/2007 13:21:00 6.88E+03 9.96E+03 1114 1014 9312-08-BL-00-05-0 1/24/2007 13:21:00 8.01 E+03 1114 1014 9312-08-SL-00-05-0 1/24/2007 13:22:00 7.21 E+03 1.08E+04 1114 1014 9312-08-BL-00-06-0 1/24/2007 13:23:00 8.07E+03 1114 1014 931 2-08-SL-00-06-0 1/24/2007 13:23:00 7.58E+03 1.09E+04 1114 1014 931 2-08-BL-00-07-0 1/24/2007 13:25:00 7.39E+03 1114 1014 9312-08-SL-00-07-0 1/24/2007 13:25:00 7.51 E+03 1.02E+04 1114 1014 9312-08-BL-00-08-0 1/24/2007 13:26:00 7.83E+03 1114 1014 9312-08-SL-O0-08-0 1/24/2007 13:27:00 8.30E+03 1.06E+04 1114 1014 931 2-08-BL-O0-09-0 1/24/2007 13:28:00 7.63E+03 1114 1014 931 2-08-SL-O0-09-0 1/24/2007 13:29:00 6.40E+03 1.04E+04 1114 1014 9312-08-BL-00-1 0-0 1/24/2007 13:29:00 6.97E+03 1114 1014 9312-08-SL-00-1 0-0 1/24/2007 13:30:00 7.49E+03 9.78E+03 1114 1014 9312-08-BL-00-1 1-0 1/24/2007 13:31:00 7.77E+03 1114 1014 9312-08-SL-00-11-0 1/24/2007 13:34:00 7.17E+03 1.06E+04 1114 1014 9312-08-BL-00-1 2-0 1/24/2007 13:34:00 7.44E+03 1114 1014 9312-08-SL-00-1 2-0 1/24/2007 13:35:00 7.17E+03 1.03E+04 1114 1014 9312-08-BL-00-1 3-0 1/24/2007 13:36:00 7.20E+03 1114 1014 9312-08-SL-00-1 3-0 1/24/2007 13:37:00 7.08E+03 1.OOE+04 1114 1014 931 2-08-BL-00-1 4-0 1/24/2007 13:38:00 8.46E+03 1114 1014 9312-08-SL-00-14-0 1/24/2007 13:38:00 8.67E+03 1.13E+04 1114 1014 9312-08-BL-00-1 5-0 1/24/2007 13:39:00 1.03E+04 1114 1014 9312-08-SL-00-1 5-0 1/24/2007 13:39:00 1.08E+04 1.31E+04 1114 1014 3/6/2007 3/6/2007Page 1 of 1

Survey Unit 9312-0008 Scan Survey Results Scan Strip Scans Reading Alevel >Alarm Survey Location Log Date Log Time E-600 SIN Probe SIN Level 931 2-08-BC-00-01 -o 1/24/2007 9:40:00 7.72E+03 1112 1013 931 2-08-SC-00-0 1-0 1/24/2007 9:47:00 5.95E+03 1.05E+04 1112 1013 931 2-08-BC-00-02-0 1/24/2007 9:48:00 6.74E+03 1112 1013 931 2-08-SC-00-02-0 1/24/2007 9:51 :00 8.45E+03 9.55E+03 1112 1013 931 2-08-BC-00-03-0 1/24/2007 9:51 :00 7.63E+03 1112 1013 931 2-08-SC-00-03-0 1/24/2007 9:53:00 5.73E+03 1.04E+04 1112 1013 931 2-08-BC-00-04-0 1/24/2007 9:55:00 6.89E+03 1112 1013 931 2-08-SC-00-04-0 1/24/2007 9:57:00 7.61 E+03 9.70E+03 1112 1013 931 2-08-BC-00-05-0 1/24/2007 9:57:00 7.19E+03 1112 1013 9312-08-S C-00-05-0 1/24/2007 9:59:00 6.65E+03 1.OOE+04 1112 1013 931 2-08-BC-00-06-0 1/24/2007 10:00:00 6.32E+03 1112 1013 931 2-08-SC-00-06-0 1/24/2007 10:03:00 6.25E+03 9.13E+03 1112 1013 931 2-08-BC-00-07-0 1/24/2007 10:03:00 6.09E+03 1112 1013 931 2-08-SC-00-07-0 1/24/2007 10:06:00 6.86E+03 8.90E+03 1112 1013 931 2-08-BC-00-08-0 1/24/2007 10:09:00 5.91 E+03 1112 1013 931 2-08-SC-00-08-0 1/24/2007 10:11:00 6.27E+03 8.72E+03 1112 1013 931 2-08-BC-00-09-0 1/24/2007 10:12:00 6.75E+03 1112 1013 931 2-08-SC-00-09-0 1/24/2007 10:15:00 6.84E+03 9.56E+03 1112 1013 931 2-08-BC-O0-1 0-0 1/24/2007 10:17:00 6.78E+03 1112 1013 931 2-08-SC-00-1 0-0 1/24/2007 10:20:00 6.61 E+03 9.59E+03 1112 1013 931 2-08-BC-00-1 1-0 1/24/2007 10:21 :00 7.15E+03 1112 1013 931 2-08-SC-00-1 1-0 1/24/2007 10:23:00 7.33E+03 9.96E+03 1112 1013 931 2-08-BC-00-1 2-0 1/24/2007 10:24:00 6.37E+03 1112 1013 931 2-08-SC-00-1 2-0 1/24/2007 10:26:00 7.08E+03 9.18E+03 1112 1013 931 2-08-BC-0O-1 3-0 1/24/2007 10:26:00 7.21 E+03 1112 1013 931 2-08-SC-00-1 3-0 1/24/2007 10:28:00 7.11 E+03 1.OOE+04 1112 1013 931 2-08-BC-00-1 4-0 1/24/2007 10:29:00 6.23E+03 1112 1013 931 2-08-SC-.00-1 4-0 1/24/2007 10:32:00 6.92E+03 9.04 E+03 1112 1013 931 2-08-BC-00-1 5-0 1/24/2007 10:32:00 6.71 E+03 1112 1013 931 2-08-SC-00-1 5-0 1/24/2007 10:35:00 6.28E+03 9.52E+03 1112 1013 931 2-08-BC-00-1 6-0 1/24/2007 10:35:00 6.45E+03 1112 1013 931 2-08-SC-00-1 6-0 1/24/2007 10:38:00 6.06E+03 9.26E+03 1112 1013 931 2-08-BC-00-1 7-0 1/24/2007 9:37:00 7.71 E+03 1114 1014 931 2-08-SC-00-1 7-0 1/24/2007 9:39:00 9.07E+03 1.05E+04 1114 1014 931 2-08-BC-00-1 8-0 1/24/2007 9:39:00 7.32E+03 1114 1014 931 2-08-SC-00-1 8-0 1/24/2007 9:42:00 8.01 E+03 1.01 E+04 1114 1014 931 2-08-BC-00-1 9-0 1/24/2007 9:43:00 7.28E+03 1114 1014 931 2-08-SC-00-1 9-0 1/24/2007 9:45:00 8.49E+03 1.01 E+04 1114 1014 931 2-08-BC-00-20-0 1/24/2007 9:45:00 7.48E+03 1114 1014 931 2-08-SC-00-20-0 1/24/2007 9:47:00 8.34E+03 1.03E+04 1114 1014 931 2-08-BC-00-21 -0 1/24/2007 9:48:00 7.49E+03 1114 1014 3/6/2007 Page 1lof 3

Survey Unit 9312-0008 Scan Survey Results Scan Strip Scans Log Time Reading Aleael >Alarm Survey Location Log Date E-600 SIN Probe SIN Level 931 2-08-SC-O0-21 -0 1/24/2007 9:51 :00 8.47E+03 1.03E+04 1114 1014 931 2-08-BC-OO-22-0 1/24/2007 9:51 :00 8.02E+03 1114 1014 931 2-08-SC-0O-22-0 1/24/2007 9:50:00 8.41 E+03 1.08E+04 1114 1014 931 2-08-BC-00-23-O 1/24/2007 9:54:00 7.96E+03 1114 1014 931 2-08-SC-OO-23-0 1/24/2007 9:57:00 8.11 E+03 1.08E+04 1114 1014 931 2-08-BC-OO-24-O 1/24/2007 9:58:00 8.38E+03 1114 1014 931 2-08-SC-0O-24-O 1/24/2007 10:00:00 7.73E+03 1.12E+04 1114 1014 931 2-08-BC-0O-25-O 1/24/2007 10:02:00 7.89E+03 1114 1014 931 2-08-SC-00-25-O 1/24/2007 10:05:00 7.71 E+03 1.07E+04 1114 1014 931 2-08-BC-O0-26-O 1/24/2007 10:05:00 8.72E+03 1114 1014 9312-08-S C-OO-26-O 1/24/2007 10:10:00 9.83E+03 1.15E+04 1114 1014 931 2-08-BC-00-27-0 1/24/2007 10:11:00 8.85E+03 1114 1014 931 2-08-SC-00-27-0 1/24/2007 10:13:00 8.32E+03 1.17E+04 1114 1014 931 2-08-BC-00-28-0 1/24/2007 10: 14:00 8.52E+03 1114 1014 931 2-08-SC-00-28-0 1/24/2007 10:15:00 7.86E+03 1.13E+04 1114 1014 931 2-08-BC-00-29-0 1/24/2007 10:16:00 8.41 E+03 1114 1014 931 2-08-SC-00-29-0 1/24/2007 10:23:00 7.82E+03 1.12E+04 1114 1014 9312-08-B C-00-30-0 1/24/2007 10:24:00 8.62E+03 1114 1014 931 2-08-SC-00-30-0 1/24/2007 10:27:00 8.51 E+03 1.14E+04 1114 1014 931 2-08-BC-00-31 -0 1/24/2007 10:28:00 9.44E+03 1114 1014 931 2-08-SC-00-31 -0 1/24/2007 10:38:00 8.99E+03 1 .23E+04 1114 1014 931 2-08-ER-00-31 -1 1/24/2007 13:41 :00 1.39E+04 1.23E+04 + 1114 1014 931 2-08-BC-00-32-0 1/24/2007 10:38:00 9.36E+03 1114 1014 931 2-08-SC-00-32-0 1/24/2007 10:40:00 9.41 E+03 1.22E+04 1114 1014 931 2-08-ER-00-32-1 1/24/2007 13:42:00 1.34E+04 1.22E+04 + 1114 1014 931 2-08-BC-00-33-0 1/24/2007 10:41 :00 8.67E+03 1114 1014 931 2-08-SC-00-33-0 1/24/2007 10:44:00 1.01 E+04 1.15E+04 1114 1014 931 2-08-BC-00-34-0 1/24/2007 10:45:00 1.02E+04 1114 1014 9312-08-SC-00-34-0 1/24/2007 10:46:00 9.30E+03 1.30E+04 1114 1014 931 2-08-BC-00-35-0 1/24/2007 10:47:00 9.80E+03 1114 1014 931 2-08-SC-00-35-0 1/24/2007 10:52:00 1.15E+04 1.26E+04 1114 1014 931 2-08-ER-00-35-1 1/24/2007 13:43:00 1.44E+04 1.26E+04

+ 1114 1014 9312-08-B C-00-36-0 1/24/2007 10:53:00 1.16E+04 1114 1014 931 2-08-SC-00-36-0 1/24/2007 10:55:00 1.04E+04 1.44E+04 1114 1014 931 2-08-BC-00-37-0 1/25/2007 7:36:00 8.44E+03 1112 1013 931 2-08-SC-00-37-0 1/25/2007 7:37:00 7.85E+03 1.13E+04 1112 1013 931 2-08-BC-00-38-0 1/25/2007 7:38:00 9.80E+03 1112 1013 931 2-08-SC-00-38-0 1/25/2007 7:39:00 9.07E+03 1.26E+04 1112 1013 931 2-08-BC-00-39-0 1/25/2007 7:39:00 1.12E+04 1112 1013 931 2-08-SC-00-39-0 1/25/2007 7:41:00 1.27E+04 1.40E+04 1112 1013 931 2-08-BC-00-40-0 1/25/2007 7:41 :00 1.05E+04 1112 1013 3/6/2007 3161007Page 2 of 3

Survey Unit 9312-0008 Scan Survey Results Scan Strip Scans Reading Aleael >Alarm Survey Location Log Date Log Time E-600 SIN Probe SIN Level 931 2-08-SC-00-40-0 1/25/2007 7:43:00 1.21E+04 1.33E+04 1112 1013 931 2-08-BC-00-41 -0 1/25/2007 7:44:00 9.38E+03 1112 1013 931 2-08-SC-00-41 -0 1/25/2007 7:45:00 8.32E+03 1.22E+04 1112 1013 931 2-08-BC-00-42-0 1/25/2007 7:46:00 8.66E+03 1112 1013 931 2-08-SC-00-42-0 1/25/2007 7:47:00 7.59E+03 1.15E+04 1112 1013 931 2-08-BC-0O-43-0 1/25/2007 7:48:00 9.07E+03 1112 1013 931 2-08-SC-00-43-0 1/25/2007 7:49:00 8.85E+03 1.19E+04 1112 1013 931 2-08-BC-00-44-0 1/25/2007 7:50:00 9.37E+03 1112 1013 931 2-08-SC-00-44-0 1/25/2007 7:51:00 1.07E+04 1.22E+04 1112 1013 3/6/2007 3/6/007Page 3 of 3

15KV WEST SIDE GW TREATMENT FACILITY (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 93 12-0008 RELEASE RECORD ATTACHMENT 3 (LABORATORY DATA)

Revision 0

General Narrative 1

General Narrative for Connecticut Yankee Atomic Power Co.

Work Order: 179837 SDG: MSR#07-0055 February 2, 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 January 30, 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 179837001 931 2-0008-006F 179837002 9312-0008-01IIF 179837003 9312-0008-QOIF 179837004 93 12-0008-002F 179837005 9312-0008-003F 179837006 931 2-0008-003FS 179837007 9312-0008-004F 179837008 9312-0008-005F 179837009 931 2-0008-007F 179837010 931 2-0008-008F 179837011 931 2-0008-009F 179837012 9312-0008-01IOF 179837013 9312-0008-012F 179837014 9312-0008-01 3F 179837015 9312-0008-014F 179837016 931 2-0008-0 15F 179837017 9312-0008-016-1 179837018 9312-0008-017-1 179837019 9312-0008-018-1 Items of Note There are no items to note.

GEL Laboratories uz P0 Box30712 Chafleston, SC 29417 2040 Savage Road Charleston, SC 29407 P84&.556.8171 F843.785.1178 www.gsl.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 Reguest Seventeen soil samples were analyzed for FSSGAM and Strontium-90. Two 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.

CheyJoe Project Manager GEL Laboratories uc PO0Box 30712 Ciailefton.SC 29417 2040 SavagesRoad Chaflestn, SC 29407 P843.555.171 F5437551178 www.gol.com 3

List of current GEL Certifications as of 31 January 2007 State FCertification Alaska UST-062 Arizona AZ0668 Arkansas88-065 1 CLIA 42DO904046 California OliSICA Colorado GenEngLabs Connecticut PH-0169 Dept. of Navy NFESC 413 EPA WG-15J Florida/NELAP E87156 Georgia E87 156 (FLINELAP)

Hawaii N/A Idaho N/A Illinois 200029 Indiana C-SC-01 Kansas E-10332 Kentucky 90129 Louisiana 03046 Maryland 270 Massachusetts M-SCOI 2 Michigan 9903 Nevada SC12 New Jersey SCO02 New Mexico FL NELAP E87 156 New York 1150]

North Carolina 233 North Carolina Drinking W 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania 68-00485 South Carolina 10 120001/10585001/10120002 Tennessee 02934 Texas TX213-2006A Texas NELAP TI 04704235-06-TX U.S. Dept. of Agriculture S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont VT87 156 Virginia 00151 Washington Cl 641 4

Chain of Custody and Supporting Documentation 5

Health Physics Procedure Healh PhsicsProcdureGPP-GGGR-R5 104-003 -Attachment B-CY-00 1 Major Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2007-00028 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 ____ ____ ____________________ ______________________

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

Jac M~arhy86-26-324Media Sample Container Jak c~rhy86-67394Code 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: ED30D.II1 15D. Z7 D.

Other: cjý Sample Designation Date Time _____Comment, Preservation Lab Smle ID 9312-0008-OOIF 01-24-07 1315 TS G BP Xt 9312-0008-002F V 01-24-07 1317 TS G BP X __

9312-0008-003F / 01-24-07 1320 TS G BP x- -

9312-0008-003FS V 01-24-07 1320 TS G BP x-9312-0008-004F v 01-24-07 1323 TS G BP X- - - -

9312-0008-005F V/ 01-24-07 1325 TS G BP X_____

I 9312-0008-006F ' 01-24-07 1327 TS G BP X 9312-0008-007F 01-24-07 1329 TS G BP X ___ _______________

9312-0008-008F v 01-24-07 1330 TS G BP x- _________________

9312-0008-009F / 01-24-07 1332 TS G BP X __ _________

9312-0008-01lOF / 01-24-07 1_334 TS G BP X __ __ __

NOTES: PO #: 002332 MSR 4: a7- epjf ZLPQDRaaseA Z TPQ0Rawst A INnA

] o Q Samples Shipped Via: Internal Container Fed Ex 'Temp:I Deg. C ElHand Cstody Sealed?

1) Relinquished By Date/Time 2)Re4dBy Date/Time Custid Seal Intact?

50 1r iL_ 67-14D El Other

3) Relinquislfe-dy' Date/Time 4) Received By Date/Time YMN L Bill of Lading #

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

Health Physics Procedure 104-003 -Attachment B-CY-001 Major Healh PhsicsProcdureGPP-GGGR-R5 Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2007-00029 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 ____ _____ _____________________ __________________ _____

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

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

Priority: D30 D. E]I 15 D. Z 7 D.

Other:

SamleDei at TmeComment, atin Preservation Lab, Sample ID 9312-0008-OIIF ' 01-24-07 1336 TS G BP X____________

9312-0008-012F / 01-24-07 1338 TS G BP X ________________________

9312-0008-013F v 01-24-07 1340 TS G BP X _______________ _______

9312-0008-014F ' 01-24-07 1342 TS G BP X_______________________

9312-0008-015F / 01-24-07 1343 TS G BP X____________

9312-0008-016-1 01-24-07 1345 TS G BP X _____________________

9312-0008-017-1 01-24-07 1346 TS G BP X__________________

9312-0008-018-1 01-24-07 1347 TS G BP X__________________

NOTES: P0 #: 0023 32 MSR #Z~ LTP QA El Radwaste QA E: Non QA Samples Shipped Via:

SFed Ex ItmiContainer Temp..: _2L Deg. C E] Hand Cusod Sealed?

1)Rlnu dBDate/Time 2) Rec 'vedBy Date/Time Csoy Seal Intact?

R e'Zf140 7_ _7_= y_ _E3_Other_

9- Eal Other7

3) Relinquished By Date/Time 4) Received By Date/Time Y0NL N__________

Bill of Lading #

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

Connecticut Yankee -SSOW-OOI Ic3 Statement of Work for Analytical Lab Services Figure 1. Sample Check-in List Date/Time Received:61..ýý .Y- 9C af SDG#- S.0 ,07-o65q4_

Work Order Number: / ~ ~ i 7-kz-~

• Shipping 'ch~ainer I,-M7 65BChain of Custody # ~itO~"/f7-~d v-A@V!C.

1.ustdySeas dshppng container intact?., -Yes NoEi

2. Custody Seals dated and. signed? yes No [1

3. Chain-of-Custody record preent? *Yes Nl 4.. Cooler temnperature

5. Vermiculitelpacking materials is:* Wet rIDry

6. Number ofsamples in shippingicontainer OV~ 'jq

7. Sample holding times exceeded? Yes (1No 1

.S. Samnples have:

Žtape ---...... hazard labels 2 <C-ustody. seals

• Rprnate sample labels

9. Samplems are:

_,ýi~n good condition -leaking

-broken -have air bubbles

10. Were any anomnalie~sidenti~fied in sample receipt? Ys N Samiple Custodian/Laboratory: ;~ 1 (/( - Dt. .

Telephoned to- u B B

. -1

Subject:

[Fwd: Soil samples]

From: Cheryl Jones <cj~gel.com>

Date: Mon, 29 Jan 2007 15:51:31 -0500 To: Amanda Rasco <ama01354@gel.com>

-- --- Original Message----------

Subject:

Soil samples Date: Mon, 29 Jan 2007 15:42:54 -0500 From: Arthur L. Hammond <Hammond@CYAPCO.com>

To: Cheryl Jones <cj@gel.com>

Cheryl, We are sending 35 samples to GEL today under two MSRs. MSRs 07-0054 and 07-0055. The requested TAT for the samples is 7 days. The requested analyses is FSSGAM and Sr-90 On all the samples and ESSALL on four (4) of the samples, see attached CO~s. It is acceptable to use the traced/untraced Tc-99 process for these samples.

Thank you, Arthur Cheryl A. Jones Project Manager/PM Team Leader GEL Laboratories, LLC 2040 Savage Road Charleston, SC (USA) 29407 Direct: 843.769.7388 Main: 843.556.8171 x 4243 Fax: 843.766.1178 E-mail: cj@gel.com Web: www.gel.com SCA697_00.pf-Content-Type: application/octet-stream SCAN97400.df'Content-Encoding: base64 9

Data Review Qualifier Definitions 10

Data Review Qualifier Definitions Qualifier Explanation

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

• • Analyte is a surrogate compound

• Result is less than value reported

• Result is greater than value reported RPD of sample and duplicate evaluated using +/-RL. Concentrations are eSX 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-%differemce 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 mess 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 MND Analyte concentration is not detected above the reporting limit UT Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary package, or Project manager concerning this qualifier Y QC Samples were not spiked with this compound Z Paint Filter Test-Particulates passed through the filter, however no free liquids were observed.

GEL Laboratories U~c POBox 30712 Cliafestan, SC 29417 2040a~aageRoad Chlafestmn,SC 29407 P643.556.8171 F8437551178 www.gsl.com 11

RADIOLOGICAL ANALYSIS 12

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

Work Order 179837 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: 606029 Prep Batch Number: 606004 Dry Soil Prep GL-RAD-A-021 Batch Number: 606002 Sample ID Client ID 179837001 931 2-0008-006F 179837002 93 12-0008-01 1F 1201269930 Method Blank (MB) 1201269931 179836001(931 2-0007-002F) Sample Duplicate (DUP) 1201269932 179836001(931 2-0007-002F) Matrix Spike (MS) 1201269933 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-0l1 REV# 14.

Calibration Information:

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

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

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

13

Quality Control (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: 179836001 (93 12-0007-002F).

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.

Manual Integration No manual integrations were performned 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 14

Product: Product:Aiphaspec Pu, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu- I I1-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 606031 Prep Batch Number: 606004 Dry Soil Prep GL-RAD-A-021 Batch Number: 606002 Sample ID Client ID 179837001 931 2-0008-006F 179837002 93 12-0008-01 IF 1201269935 Method Blank (MB) 1201269936 179836001(931 2-0007-002F) Sample Duplicate (DUP) 1201269937 179836001(931 2-0007-002F) Matrix Spike (MS) 1201269938 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 1 REV# 14.

Calibration Information:

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

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

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

Quality Control (OC) Information:

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

Designated QC The following sample was used for QC: 179836001 (93 12-0007-002F).

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

15

Technical Information:

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

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

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

Miscellaneous Information:

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

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

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Pu241, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu- II-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 606032 Prep Batch Number: 606004 Dry Soil Prep GL-RAD-A-02 1 Batch Number: 606002 16

Sample lID Client ID 179837001 9312-0008-006F 179837002 93 12-0008-01IIF 1201269939 Method Blank (MB) 1201269940 179836001(931 2-0007-002F) Sample Duplicate (DUP) 1201269941 179836001(9312-0007-002F) Matrix Spike (MS) 1201269942 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# 8.

Calibriltion 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: 179836001 (93 12-0007-002F).

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 Sample 1201269940 (93 12-0007-002F) was recounted due to low quench number.

Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from 17

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

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

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

Oualifier 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: 606830 Prep Batch Number: 606002 18

Sample ID Client ID 179837001 931 2-0008-006F 179837002 93 12-0008-01IIF 179837003 9312-0008-001IF 179837004 9312-0008-002F 179837005 93 12-0008-003F 179837006 931 2-0008-003FS 179837007 93 12-0008-004F 179837008 931 2-0008-005 F 179837009 931 2-0008-007F 179837010 931 2-0008-008F 179837011 931 2-0008-009F 179837012 9312-0008-01IOF 179837013 9312-0008-012F 179837014 9312-0008-01 3F 179837015 931 2-0008-014F 179837016 9312-0008-015F 179837017 9312-0008-016-1 179837018 9312-0008-017-1 179837019 9312-0008-018-1 1201271730 Method Blank (MB) 1201271731 179837001(931 2-0008-006F) Sample Duplicate (DUP) 1201271732 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-0 13 REV# 13.

Calibration Information:

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

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

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

Quality Control (OC) Information:

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

Designated QC The following sample was used for QC: 179837001 (93 12-0008-006F).

QC Information 19

All of the QC samples met the required acceptance limits.

Technical Information:

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

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

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

Miscellaneous Information:

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

NCR 404699 was generated due to Failed RPD for DUP. 1. The relative percent difference in sample 179837001 (dup 1201271731) did not meet the duplication criteria for Bi-214 and Ra-226. 1. The nuclides that do not meet are naturally occurring and all other samples meet the duplication criteria.

Reporting results.

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

Qualifier information 20

Qualifier Reason Analyte Sample U1 Data rejected due to high peak-width. Cesium- 137 179837007 U' Data rejected due to interference. Manganese-54 179837016 U' Data rejected due to low abundance. Actinium-228 179837006 Cesium- 134 179837001 179837008 179837012 179837013 179837016 179837017 179837019 Europium- 155 179837005 Niobium-94 179837010 Thallium-208 179837015 U' Data rejected due to no valid peak. Americium-24 1 179837013 Potassium-40 1201271730 Method/Analysis Information Product: GFPC, Sr9O, solid-ALL FSS Analytical Method: EPA 905.0 Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 606160 Prep Batch Number: 606004 Dry Soil Prep GL-RAD-A-021 Batch Number: 606002 21

Sample ID Client ID 179837001 9312-0008-006F 179837002 93 12-0008-01 IF 179837003 9312-0008-OOIF 179837004 9312-0008-002F 179837005 931 2-0008-003F 179837006 931 2-0008-003FS 179837007 931 2-0008-004F 179837008 93 12-0008-005F 179837009 931 2-0008-007F 179837010 9312-0008-008F 179837011 931 2-0008-009F 179837012 9312-0008-01 OF 179837013 9312-0008-012F 179837014 9312-0008-013F 179837015 9312-0008-014F 179837016 9312-0008-015F 179837017 9312-0008-016-1 179837018 9312-0008-017-1 179837019 9312-0008-018-1 1201270175 Method Blank (MB) 1201270176 179837001(931 2-0008-006F) Sample Duplicate (DUP) 1201270177 179837001(931 2-0008-006F) Matrix Spike (MS) 1201270178 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# 10.

Calibration Information:

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

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

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

Oualitv Control (OC) Information:

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

Designated QC The following sample was used for QC: 179837001 (93 12-0008-006F).

22

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

Technical Information:

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

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

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

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

Miscellaneous Information:

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

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Tc99, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Tc-02-RC Modified Analytical Batch Number: 606162 Sample ID Client ID 179837001 931 2-0008-006F 179837002 93 12-0008-01IIF 1201270179 Method Blank (MB) 1201270180 179836001(931 2-0007-002F) Sample Duplicate (DIJP) 1201270181 179836001(931 2-0007-002F) Matrix Spike (MS) 1201270182 Laboratory Control Sample (LCS) 23

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

Calibration Iniformation:

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

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

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

Quality Control (OC Information:

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

Designated QC The following sample was used for QC: 179836001 (93 12-0007-002F).

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.

24

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Fe55, Solid-ALL FSS Analytical Method: DOE RESL Fe-I1, Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 606165 Prep Batch Number: 606004 Dry Soil Prep GL-RAD-A-021 Batch Number: 606002 Sample ID Client ID 179837001 931 2-0008-006F 179837002 93 12-0008-01 IF 1201270187 Method Blank (MB) 1201270188 179836001(931 2-0007-002F) Sample Duplicate (DUP) 1201270189 179836001(931 2-0007-002F) Matrix Spike (MS) 1201270190 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# 3.

Calibration Information:

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

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

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

Quality Control (OC) Information:

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

25

Designated QC The following sample was used for QC: 179836001 (93 12-0007-002F).

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 Samples were recounted due to low/high recovery.

Miscellaneous Information:

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

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint Ni63, Solid-ALL FSS Analytical Method: DOE RESL Ni-i1, Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 606163 Prep Batch Number: 606004 Dry Soil Prep GL-RAD-A-021 Batch Number: 606002 26

Sample ID Client ID 179837001 931 2-0008-006F 179837002 93 12-0008-01 IF 1201270183 Method Blank (MB) 1201270184 179836001(931 2-0007-002F) Sample Duplicate (DUP) 1201270185 179836001(9312-0007-002F) Matrix Spike (MS) 1201270186 Laboratory Control Sample (LCS)

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

Calibration Information:

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

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

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

Quality Control (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: 179836001 (93 12-0007-002F).

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 27

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 pCilg Analytical Method: EPA 906.0 Modified Analytical Batch Number: 606167 Sample ID Client ID 179837001 931 2-0008-006F 179837002 9312-0008-01 IF 1201270195 Method Blank (MB) 1201270196 179837001(931 2-0008-006F) Sample Duplicate (DUP) 1201270197 179837001(931 2-0008-006F) Matrix Spike (MS) 1201270198 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# 13.

Calibration Information:

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

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

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

Quality Control (0C) Information:

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

28

Designated QC The following sample was used for QC: 179837001 (93 12-0008-006F).

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

Technical Information:

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

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

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

Miscellaneous Information:

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

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

Qualifier information Manual qualifiers were not required.

Method/Analysis Information Product: Liquid Scint C14, Solid AlI,FSS Analytical Method: EPA FERF C-01 Modified Analytical Batch Number: 606166 Sample ED Client ID 179837001 931 2-0008-006F 179837002 9312-0008-011iF 1201270191 Method Blank (MB) 1201270192 179836001(931 2-0007-002F) Sample Duplicate (DUP) 1201270193 179836001(931 2-0007-002F) Matrix Spike (MS) 1201270194 Laboratory Control Sample (LCS) 29

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

Calibration Information:

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

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

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

Quality Control (OC) Information:

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

Designated QC The following sample was used for QC: 179836001 (93 12-0007-002F).

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.

30

Qualifier information Manual qualifiers were not required.

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

Review Validation:

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

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

Reviewer/Date: N 31

GEL Laboratories LLC NCR Report No.: 404699 Form GEL-NCR Rev. 06/05 Revision No.: 1 COMPANY - WIDE NONCONFORMANCE REPORT Mo.Day Yr. Division: Quality Criteria: Type:

06-FEB-07 Radiochemistry SOP Process Instrument Type: Test / Method: Matrix Type: Client Code:

GAMMA SPECTROMETER EML HASL 300, 4.5.2.3 Solid YANK Batch ID: Sample Numbers:

606830 179837001, 1201271731 Potentially affected work order(s)(SDG): 179837(MSR#07-0055)

Application Issues:

Failed RPD for DUP Specification and Requirements NRG Disposition:

Nonconformance

Description:

1. The relative percent difference in sample 179837001 (dup 1. The nuclides that do not meet are naturally occurring and all other 1201271731) did not meet the duplication criteria for Bi-21 4 and Ra-226. samples meet the duplication criteria. Reporting results.

Originator's Name: Data ValidatorlGroup Leader:

Jimmy Hartley 06-FEB-07 Heather Anderson 06-FEB-07 Quality Review:

Director:

Page 1 32

SAMPLE DATA

SUMMARY

33

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

Client SDG: MSR#07-0055 GEL Work Order: 179837 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 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 931 2-0008-006F Project: YANKO 1204 Sample ID: 179837001 Client ID: YANKOOI Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 7.04%

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

Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U -0.00588 4/-0.0667 0.0601 +/-0.0667 0.201 pCi/g DXH2 02/01/07 0743 606029 Curium-242 U 0.0323 -/-0.0908 0.0557 +/-0.0909 0.195 pCi/g Curium-243/244 U -0.0264 /-0.0963 0.0931 +/-0.0964 0.267 pCi/g Aiphaspec Pu, Solid-ALL FSS Plutonium-238 U -0.0998 +/-0.124 0.143 +/-0.125 0.383 pCi/g DXH2 01/31/07 1554 606031 Plutonium-239/240 U 0.0813 +/-0.124 0.0554 +/-0.125 0.207 pCi/g Liquid Scint Pu24J, Solid-ALL FSS Plutonium-241 U 2.26 +/-7.19 5.92 +/-7.19 12.5 pCi/g DXH2 02/01/07 0951 606032 Rad Gamma Spec Analysis Ganima,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.587 +/-0.146 0.06 19 +/-0.146 0.124 pCi/g MJH 1 02/05/07 0802 606830 Americium-241 U 0.0353 1/-0.0842 0.0725 +/-0.0842 0.145 pCi/g Bismuth-212 0.283 +/-0.205 0.121 +/-0.205 0.242 pCi/g Bismuth-214 0.564 F/-0.0926 0.0263 +1-0.0926 0.0526 pCi/g Cesium-134 UI 0.00 1/-0.0223 0.0205 +/-0.0223 0.041 pCi/g Cesium-137 U 0.00537 ý-/-0.01 87 0.0164 +/-0.0187 0.0328 pCi/g Cobalt-60 U -0.013 40.01 85 0.014 +/-0.0185 0.028 1 pCi/g Europium-152 U 0.0071 ý/-0.0593 0.0446 +/-0.0593 0.0891 pCi/g Europium- 154 U 0.0232 1/-0.0607 0.0534 +/-0.0607 0.107 pCi/g Europium-155 U -0.0124 1/-0.0549 0.0488 +/-0.0549 0.0976 pCi/g Lead-212 0.564 ýI-0.0677 0.0246 +/-0.0677 0.0492 pCi/g Lead-214 0.503 +/-0.080 0.0328 +/-0.080 0.0655 pCi/g Manganese-54 U -0.00293 Y/-0.0178 0.0155 +/-0.0178 0.0309 pCi/g Niobium-94 U 0.00658 ./-0.0 164 0.0145 +/-0.0164 0.029 pCi/g Potassium-40 8.96 +/-0.985 0.141 +/-0.985 0.281 pCi/g Radium-226 0.564 F/-0.0926 0.0263 +/-0.0926 0.0526 pCi/g Silver-108m U 0.00437 F-/-0.0 169 0.0153 +/-0.0169 0.0305 pCi/g Thallium-208 0.159 4-0.0453 0.0169 +/-0.0453 0.0337 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, solid-ALL FSS Strontium-90 U 0.00356 +/-0.0207 0.0169 +/-0.0207 0.0391 pCi/g KSDI 02/02/07 1824 606160 Bad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi Tritium U 0.452 +/-0.306 0.452 +/-0.306 1.02 pCi/g AXD2 02/01/07 0235 606167 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 931 2-0008-006F Project: YANK01 204 Sample ID: 179837001 Client ID: YANK001 Vol. Recv.:

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

Rad Liquid Scintillation Analysis Liquid Scint C14, Solid All, FSS Carbon-14 U -0.0461 +/-0.0748 0.0648 +/-0.0748 0.136 pCi/g AXD2 01/31/07 1805 606166 Liquid Scinit FeSS, Solid-ALL ['55 Iron-55 U 13.3 +/-59.5 38.5 +/-59.5 80.4 pCi/g MXPI 02/03/07 1028 606165 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -5.24 +/-11.8 10.1 +/-11.8 20.8 pCi/g MXPI 02/01/07 1537 606163 Liquid Scint Tc99, Solid-ALL ['55 Technetium-99 U 0.114 +/-0.180 0.146 +/-0.180 0.308 pCi/g KXRI 02/04/07 2236 606162 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 01/30/07 1121 606002 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu- I I-RC Modified 3 DOE EML HASL-300, Pu- I I-RC Modified 4 EML HASL 300,4.5.2.3 5 EPA 905.0 Modified 6 EPA 906.0 Modified 7 EPA EERF C-01 Modified 8 DOE RESL Fe-I, Modified 9 DOE RESL Fe-I, Modified 10 DOE RESL Ni-I, Modified 11I DOE EMIL HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits Americium-243 Alphaspec Am241, Cm, Solid ALL 91 (15%-125%)

Plutonium-242 Alphaspec Pu, Solid-ALL FSS 88 (15%-I125%)

Plutonium-242 Liquid Scint Pu241, Solid-ALL FS 83 (25%-I 25%)

Strontium-90 GFPC, Sr90, solid-ALL FSS 64 (25%-I125%)

Carrier/Tracer Recovery GFPC, SrOO, solid-ALL FSS 64 (25%-I125%)

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

36

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008--006F Project: YANK01204 Sample ID: 179837001 Client ID: YANKO0l Vol. Recv.:

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

Nickel-63 Liquid Scint Ni63, Solid-ALL FS 83 (25%-I125%)

Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 83 (25%-I125%)

Technetium-99 Liquid Scint Tc99, Solid-ALL FS 72 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 72 (15%-125%)

Notes:

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

• 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

• Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier

• QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.

37

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 93 12-0008-01IIF Project: YANK0 1204 Sample ID: 179837002 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 7.66%

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

Rad Alpha Spec Analysis Alphaspec Am24J1, Cm, Solid ALL FSS Americium-241 U -( 0.00578 +1-0.0 19 0.0269 +/-0.019 0.135 pCi/g DXH2 02/01/07 0743 606029 Curium-242 U 0.03 1 +/-0.0608 0.00 +/-0.061 0.0841 pCi/g Curium-243/244 U 0.01 56 +/-0.062 0.038 +/-0.0621 0.157 pCi/g Alplmspec Pu, Solid-ALL FSS Plutonium-238 U 0.0473 +/-0.0886 0.0395 +/-0.0888 0.163 pCi/g DXH2 01/31/07 1554 606031 Plutonium-239/240 U- -0.0298 +/-0.0292 0.0558 +1-0.0295 0.196 pCi/g Liquid Scint Pu24I, Solid-ALL FSS Plutonium-241 U -6.94 +/-6.22 5.60 +/-6.22 11.8 pCi/g DXH2 02/01/07 1007 606032 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.541 +/-0.154 0.0531 +/-0.154 0.106 pCi/g MJH1 02/05/07 0802 606830 Americium-241 U -0.0164 +/-0.0981 0.0809 +/-0.0981 0.162 pCi/g Bismuth-212 0.502 +/-0.235 0.125 +/-0.235 0.250 pCi/g Bismuth-214 0.460 +/-0.0912 0.0319 +/-0.0912 0.0637 pCi/g Cesium-134 U 0.0346 +/-0.0224 0.0218 +/-0.0224 0.0435 pCi/g Cesium-I 37 0.0345 +/-0.03 1 0.0172 +/-0.031 0.0343 pCi/g Cobalt-60 U -0.0044 +/-0.0221 0.0181 +/-0.0221 0.0361 pCi/g Europium-152 U -0.00798 +/-0.055 0.0425 +/-0.055 0.0849 pCi/g Europium-154 U -0.0512 +/-0.0716 0.0557 +/-0.0716 0.111 pCi/g Europium-ISS U 0.00199 +/-0.0565 0.0518 +/-0.0565 0.104 pCi/g Lead-21 2 0.454 +/-0.0597 0.0257 +/-0.0597 0.0514 pCi/g Lead-214 0.450 +/-0.0817 0.0299 +/-0.0817 0.0598 pCi/g Manganese-54 U 0.0283 +/-0.0197 0.0179 +/-0.0197 0.0359 pCi/g Niobium-94 U -0.0017 +/-0.0183 0.0155 +/-0.0183 0.0309 pCi/g Potassium-40 9.49 +/-0.97 1 0.136 +/-0.971 0.272 pCi/g Radium-226 0.460 +/-0.0912 0.03 19 +/-0.0912 0.063 7 pCi/g Silver-108m U 0.00117 +/-0.0169 0.015 +/-0.0169 0.0299 pCi/g Thallium-208 0.166 +/-0.0439 0.0171 +/-0.0439 0.0342 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, solid-ALL FSS Strontium-90 U 0.00426 +/-0.018 0.0145 +/-0.018 0.0338 pCi/g KSD1 02/02/07 1824 606160 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCilg Tritium U -0.193 +/-0.264 0.458 +/-0.264 1.04 pCi/g AXD2 02/01/07 0308 606167 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-01IIF Project: YANK01204 Sample ID: 179837002 Client ID: YANKOO 1 Vol. Recv.:

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

Rad Liquid Scintillation Analysis Liquid Scint C14, Solid All, FSS Carbon-14 U -0.00628 +/-0.0775 0.0653 +/-0.0775 0.137 pCilg AXD2 01/31/07 1908 606166 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U -9.34 +/-59.2 38.8 +/-59.2 80.9 pCi/g MXP1 02/03/07 1045 606165 Liquid Scint Ni63, Solid-ALL FSS Nickei-63 U -1.68 +/-10.4 8.78 +/-10.4 18.2 pCilg MXPI 02/01/07 1554 606163 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.0186 +/-0.200 0.167 +/-0.200 0.353 pCi/g KXRl 02/04/07 2253 606162 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-02i JMB1 01 /30/07 1121 606002 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-R C Modified 2 DOE EML HASL-300, Pu-i l-RC Modified 3 DOE EML HASL-300, Pu-I I1-RC Modified 4 EML HASL 300,4.5.2.3 5 EPA 905.0 Modified 6 EPA 906.0 Modified 7 EPA EERF C-01 Modified 8 DOE RESL Fe-I, Modified 9 DOE RESL Fe-i, Modified 10 DOE RESL Ni-i, Modified II DOE EML HASL-300, Tc-02-R( Modified Surrogate/Tracer recovery Recovery% Acceptable Limits Americium-243 Aiphaspec Am241, Cm, Solid ALL 86 (15%-125%)

Plutonium-242 Alphaspec Pu, Solid-ALL FSS 89 (15%-125%)

Plutonium-242 Liquid Scint Pu241, Solid-ALL F5 86 (25%-i125%)

Strontium-90 GFPC, SrOO, solid-ALL FSS 78 (25%-I 25%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 78 (25%-I125%)

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

39

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - wvww.gel.com Certificate of Anal[3sis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 93 12-0008-011iF Project: YANK01204 Sample ID: 179837002 Client ID: YANKOOI Vol. Recv.:

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

Nickel-63 Liquid Scint Ni63, Solid-ALL FS 91 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 91 (25%-I125%)

Technetium-99 Liquid Scint Tc99, Solid-ALL FS 63 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 63 (15%-125%)

Notes:

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

• 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.

40

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - wvww.gel.comn Certificate of Analy:sis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-001IF Proiect: YANK01 204 Sample ID: 179837003 Client ID: YANK0OI Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 7.7%

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

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 In growth Waived Actinium-228 0.542 +1-0.145 0.0541 +/-0.145 0.108 pCi/g MJHI1 02/05/07 0802 606830 Americium-241 U 0.105 +/-0.0908 0.0785 +/-0.0908 0.157 pCi/g Bismuth-212 0.483 +/-0.323 0.130 +/-0.323 0.260 pCi/g Bismuth-214 0.339 +/-0.0939 0.0334 +/-0.0939 0.0667 pCi/g Cesium-134 U 0.0316 +/-0.0336 0.0229 +/-0.0336 0.0458 pCi/g Cesium-137 U 0.0188 +/-0.0237 0.0196 +/-0.0237 0.0392 pCi/g Cobalt-60 U -0.007 +/-0.0217 0.0175 +/-0.0217 0.0349 pCi/g Europium-152 U -0.0227 +/-0.0653 0.0463 +1-0.0653 0.0926 pCi/g Europium-154 U -0.0651 +/-0.061 0.0442 +/-0.061 0.0883 pCi/g Europium-155 U -0.0163 +/-0.0563 0.0503 +/-0.0563 0.101 pCi/g Lead-212 0.513 +/-0.0649 0.0241 +/-0.0649 0.0481 pCi/g Lead-214 0.438 +/-0.0821 0.0296 +/-0.0821 0.0592 pCi/g Manganese-54 U 0.00882 +/-0.0197 0.0178 +/-0.0197 0.0356 pCi/g Niobium-94 U 0.00493 +/-0.0188 0.0162 +/-0.0188 0.0324 pCi/g Potassium-40 9.26 +/-1.01 0.144 +/-1.01 0.289 pCi/g Radium-226 0.339 +/-0.0939 0.0334 +/-0.0939 0.0667 pCi/g Silver-I 08m U 0.0058 +/-0.0219 0.015 +/-0.0219 0.0301 pCi/g Thallium-208 0.161 +/-0.0458 0.0161 +/-0.0458 0.0322 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, solid-ALL ESS Strontium-90 U 0.0235 +/-0.024 0.0174 +/-0.024 0.0397 pCi/g KSDI 02/02/07 1824 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 01/30/07 1121 606002 The following Analytical Methods were performed Method Description 1 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 - wvww.gel.com Certificate of Analy:sis Company :Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project. Soils PO# 002332 Client Sample ID: 9312-0008-QOIF Project: YANK01204 Sample ID: 179837003 Client ID: YANKO0 I Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch IN Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr9O, solid-ALL FSS 76 (25%-125%)

Canrier/Tracer Recovery GFPC, Sr9O, solid-ALL FSS 76 (25%-I125%)

Notes:

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

• 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

• Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification

• Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier

• 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 931 2-0008-002F Project: YANK01204 Sample ID: 179837004 Client ID: YANKOQI Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 7.79%

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

Rad Ganuna Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 In growth Waived Actinium-228 0.600 +/-0.140 0.0462 +/-0.140 0.0923 pCi/g MJH 1 02/05/07 0803 606830 Americium-241 U -0.022 +/-0.108 0.0887 +/-0.108 0.177 pCi/g Bismuth-212 0.567 +/-0.171 0.0965 +/-0.171 0.193 pCi/g Bismuth-214 0.419 +/-0.0701 0.0238 +/-0.0701 0.0475 pCilg Cesium-134 U 0.0245 +/-0.026 0.0163 +/-0.026 0.0325 pCilg Cesium-137 U 0.017 +/-0.017 0.0153 +/-0.017 0.0305 pCilg Cobalt-60 U -0.00364 +/-0.0157 0.0129 +/-0.0157 0.0258 pCi/g Europium-152 U -0.00902 +1-0.0515 0.0347 +1-0.0515 0.0693 pCi/g Europium-154 U 0.0169 +1-0.051 0.0441 +1-0.051 0.0882 pCilg Europium-155 U 0.0247 +/-0.046 0.0427 +/-0.046 0.0853 pCilg Lead-212 0.523 +/-0.0589 0.0197 +/-0.0589 0.0394 pCilg Lead-214 0.537 +/-0.0773 0.0242 +/-0.0773 0.0483 pCilg Manganese-54 U -0.00546 +/-0.0149 0.0128 +/-0.0149 0.0255 pCi/g Niobium-94 U 0.0145 +/-0.0142 0.0127 +/-0.0142 0.0255 pCi/g Potassium-40 9.40 +/-0.838 0.139 +/-0.838 0.277 pCi/g Radium-226 0.419 +/-0.0701 0.0238 +/-0.0701 0.0475 pCi/g Silver-108m U 0.00824 +/-0.0142 0.0128 +/-0.0142 0.0256 pCi/g Thallium-208 0.178 +/-0.0339 0.012 +/-0.0339 0.0239 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, so/id-ALL FSS Strontium-90 0.296 +/-0.0502 0.0175 +/-0.0507 0.0405 pCi/g KSDI 02/02/07 1824 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 01/30/07 1121 606002 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 - wvww.gel.com Certificate of Analysis Company Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils P04* 002332 Client Sample ID: 9312-0008-002F Project: YANK01204 Sample ID: 179837004 Client ID: YANKOOI Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Lim-its Strontium-90 GFPC, Sr9O, solid-ALL FSS 66 (25%-125%)

Carrier/Tracer Recovery GFPC, Sr9O, solid-ALL FSS 66 (25%-125%)

Notes:

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

• 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

• Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier

• 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 931 2-0008-003F Project: YANK01204 Sample ID: 179837005 Client ID: YANKOO 1 Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 5.88%

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

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 In growth Waived Actinium-228 0.634 +/-0.187 0.0807 +/-0.187 0.161 pCi/g MJH1 02/05/07 0803 606830 Americium-241 U 0.0347 +/-0.0434 0.0368 +/-0.0434 0.0736 pCi/g Bismuth.-212 U 0.359 +/-0.334 0.196 +/-0.334 0.391 pCi/g Bismuth-214 0.394 +/-0.107 0.0426 +/-0.107 0.0851 pCi/g Cesium-134 U 0.0558 +/-0.0376 0.0292 +/-0.0376 0.0584 pCi/g Cesium-] 37 U 0.0127 +/-0.0303 0.0265 +/-0.0303 0.053 pCi/g Cobalt-60 U 0.00405 +/-0.0363 0.0255 +/-0.0363 0.0509 pCi/g Europiumn-152 U 0.020 +/-0.0782 0.0586 +/-0.0782 0.117 pCi/g Europium-154 U -0.0152 +/-0.0866 0.0717 +/-0.0866 0.143 pCi/g Europium-155 UI 0.00 +/-0.0798 0.0576 +/-0.0798 0.115 pCi/g Lead-212 0.637 +/-0.0833 0.0325 +/-0.0833 0.065 pCi/g Lead-214 0.475 +/-0.105 0.0444 +/-0.105 0.0887 pCi/g Manganese-54 U 0.00746 +/-0.0278 0.0247 +/-0.0278 0.0494 pCi/g Niobium-94 U -0.0155 +/-0.027 0.022 +/-0.027 0.0439 pCi/g Potassium-40 9.77 +/-1.05 0.234 +/-1.05 0.468 pCi/g Radium-226 0.394 +/-0.107 0.0426 +/-0.107 0.0851 pCi/g Silver-108m U -0.00676 +/-0.0259 0.0212 +/-0.0259 0.0423 pCi/g Thallium-208 0.189 +/-0.0523 0.0235 +/-0.0523 0.0469 pCi/g Rad Gas Flow Proportional Counting GFPC, SO9O, solid-ALL FSS Strontium-90 U 0.0308 +/-0.0249 0.0173 +/-0.0249 0.0396 pCilg KSDI 02/02/07 1825 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 01/30/07 1121 606002 The following Analytical Methods were performed Method Description 1 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 East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-003F Proiect: YANK01204 Sample ID: 179837005 Client ID: YANKOOI Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr90, solid-ALL FSS 74 (25%-l25%)

Carrier/Tracer Recovery GFPC, Sr9O, solid-ALL FSS 74 (25%-I 25%)

Notes:

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

• 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.

13D 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

• 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 +f-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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 931 2-0008-003FS Project: YANK0 1204 Sample ID: 179837006 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 5.98%

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

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 UI 0.00 +/-0.148 0.111 +/-0.148 0.221 pCi/g MJIi 02/05/07 0809 606830 Americium-241 U 0.0525 +/-0.0625 0.0524 +/-0.0625 0.105 pCilg Bismuth-212 U 0.236 +/-0.152 0.146 +/-0.152 0.292 pCi/g Bismuth-214 0.359 +/-0.0802 0.0302 +/-0.0802 0.0604 pCi/g Cesium-134 U 0.025 +/-0.0367 0.0198 +/-0.0367 0.0396 pCilg Cesiumn-137 U 0.0208 +/-0.018 0.0153 +/-0.018 0.0306 pCilg Cobalt-60 U -0.0119 +/-0.0188 0.0144 +/-0.0188 0.0287 pCi/g Europium-152 U -0.00052 +/-0.0545 0.0418 +/-0.0545 0.0836 pCi/g Europium-154 U -0.0374 +/-0.0643 0.0412 +/-0.0643 0.0823 pCi/g Europium-ISS U 0.0202 +/-0.0495 0.045 +/-0.0495 0.0899 pCi/g Lead-212 0.536 +/-0.0657 0.0238 +/-0.0657 0.0477 pCi/g Lead-214 0.438 +/-0.078 0.0301 +/-0.078 0.0601 pCi/g Manganese-54 U 0.0022 +/-0.0179 0.0158 +/-0.0179 0.0315 pCi/g Niobium-94 U 0.00114 +/-0.0207 0.0158 +/-0.0207 0.0316 pCi/g Potassium-40 9.67 +/-0.906 0.127 +/-0.906 0.253 pCi/g Radium-226 0.359 +/-0.0802 0.0302 +/-0.0802 0.0604 pCi/g Silver-108m U 0.00644 +/-0.0153 0.0137 +/-0.0153 0.0275 pCi/g Thallium-208 0.161 +/-0.040 0.015 +/-0.040 0.0301 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, solid-ALL FSS Strontium-90 U 0.0083 +/-0.023 0.0181 +/-0.023 0.0422 pCi/g KSDI 02/02/07 1825 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 01 /30/07 1121 606002 The following Analytical Methods were performed Method Description 1 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 Analy:sis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-003FS Project: YANK01204 Sample ID: 179837006 Client ID: YANKOOlI Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU NMA Units DF Analyst Date Time Batch A~

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr90, solid-ALL FSS 62 (25%-I125%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 62 (25%-i125%)

Notes:

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

• 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

• 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 931 2-0008-004F Proiect: YANK01204 Sample ID: 179837007 Client ID: "YANKOOI Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 6.43%

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

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 In growth Waived Actinium-228 0.629 +/-0.133 0.0459 +/-0.133 0.0917 pCi/g MJHI 02/05/07 0813 606830 Americium-241 U 0.0388 +/-0.0618 0.0532 +/-0.0618 0.106 pCi/g Bismuth-212 0.299 +/-0.218 0.124 +/-0.218 0.247 pCi/g Bismuth-214 0.454 +/-0.0766 0.0273 +/-0.0766 0.0545 pCi/g Cesium-134 U 0.0217 +/-0.0167 0.0177 +/-0.0167 0.0353 pCi/g Cesium~-137 UI 0.00 +/-0.0323 0.016 +/-0.0323 0.032 pCi/g Cobalt-60 U 0.00104 +/-0.0186 0.0157 +/-0.0186 0.0314 pCi/g Europium-152 U 0.016 +/-0.0497 0.0379 +/-0.0497 0.0758 pCi/g Europium-154 U -0.0214 +/-0.0583 0.0473 +/-0.0583 0.0946 pCi/g Europium-ISS U 0.0588 +/-0.0535 0.0457 +/-0.0535 0.0914 pCi/g Lead-212 0.522 +/-0.0596 0.0228 +/-0.0596 0.0455 pCi/g Lead-214 0.444 +/-0.0734 0.0271 +/-0.0734 0.0542 pCi/g Manganese-54 U 0.00805 +/-0.0189 0.0151 +/-0.0189 0.0301 pCi/g Niobium-94 U-0.000442 +/-0.0166 0.0141 +/-0.0166 0.0282 pCi/g Potassium-40 10.1 +/-0.922 0.131 +/-0.922 0.262 pCi/g Radium-226 0.454 +/-0.0766 0.0273 +/-0.0766 0.0545 pCi/g Silver-108mn U 0.000805 +/-0.0146 0.013 +/-0.0146 0.0259 pCi/g Thallium-208 0.109 +/-0.0349 0.0155 +/-0.0349 0.0311 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, solid-ALL FSS Strontium-90 U -0.00436 +/-0.0168 0.0147 +/-0.0168 0.034 pCi/g KSDI 02/02/07 1825 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI1 01/30/07 1121 606002 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits 49

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - wvww.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-004F Project: YANK01204 Sample ID: 179837007 Client ID: YANKOOI Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr90, solid-ALL FSS 78 (25%-125%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 78 (25%-125%)

Notes:

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

• 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.

13D Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GCIMS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more 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

• 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.

50

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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 931 2-0008-005F Project: YANK0 1204 Sample ID: 179837008 Client ID: YANKOO I Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 5.92%

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

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM1 & ALL FSS 226 Ingrowth Waived Actinium-228 0.478 +/-0.105 0.0394 +/-0.105 0.0788 pCi/g MIHI 02/05/07 0814 606830 Americium-241 U 0.0172 +/-0.0668 0.0557 +/-0.0668 0.111 pCi/g Bismuth-212 0.249 +/-0.185 0.0893 +/-0.185 0.179 pCi/g Bismuth-214 0.431 +/-0.0763 0.0245 +/-0.0763 0.049 pCi/g Cesium-134 UI 0.00 +/-0.0164 0.016 +/-0.0164 0.0319 pCi/g Cesium-137 U 0.0021 +/-0.0151 0.0129 +/-0.0151 0.0259 pCi/g Cobalt-60 U -0.00692 +/-0.017 0.0114 +/-0.0 17 0.0228 pCi/g Europium-152 U -0.035 +/-0.0534 0.0342 +/-0.0534 0.0684 pCi/g Europium-154 U -0.0264 +/-0.0534 0.0359 +/-0.0534 0.0717 pCi/g Europium-I 55 U -0.0174 +/-0.0495 0.0445 +/-0.0495 0.0889 pCi/g Lead-212 0.508 +/-0.0578 0.0201 +/-0.0578 0.0402 pCi/g Lead-214 0.441 +/-0.0672 0.0251 +/-0.0672 0.0501 pCi/g Manganese-54 U -0.00746 +/-0.0 141 0.0119 +/-0.0 141 0.0237 pCi/g Niobium-94 U 0.0193 +/-0.0145 0.0132 +/-0.0145 0.0264 pCi/g Potassium-40 9.09 +/-0.805 0.120 +/-0.805 0.240 pCi/g Radium-226 0.431 +/-0.0763 0.0245 +/-0.0763 0.049 pCi/g Silver-108m U -0.00777 +/-0.013 0.0111 +/-0.013 0.0221 pCi/g Thallium-208 0.126 +/-0.0283 0.0113 +/-0.0283 0.0227 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr90, solid-ALL FSS Strontium-90 U 0.00533 +/-0.0238 0.0195 +/-0.0238 0.0431 pCi/g KSDI 02/02/07 1825 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 01/30/07 1121 606002 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovlery Test Recovery% Acceptable Limits 51

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-005F Project: YANK0I1204 Sample ID: 179837008 Client ID: YANKOOlI Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr9O, solid-ALL FSS 70 (25%-125%)

Carrier/Tracer Recovery GFPC, Sr9O, solid-ALL FSS 70 (25%-I125%)

Notes:

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

• 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 NED Analyte concentration is not detected above the detection limit

• 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 +f-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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 931 2-0008-007F Project: YANK01204 Sample ID: 179837009 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 5.76%

Parameter Qualifier Result Uncertainty LC TPU MBA Units DF Analyst Date Time Batch A~

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 In growth Waived Actinium-228 0.602 +1-0.146 0.0474 +/-0.146 0.0947 pCilg MJHI 02/05/07 0820 606830 Americium-241 U -0.0339 +/-0.0624 0.0502 +/-0.0624 0.100 pCilg Bismuth-212 0.460 +/-0.262 0.115 +/-0.262 0.230 pCi/g Bismuth-214 0.459 +/-0.0759 0.0254 +/-0.0759 0.0508 pCi/g Cesium-I 34 U 0.0308 +/-0.0277 0.0202 +/-0.0277 0.0403 pCilg Cesium-] 37 U 0.0214 +/-0.020 0.0183 +/-0.020 0.0367 pCilg Cobalt-60 U -0.013 +/-0.0181 0.0136 +/-0.0181 0.0273 pCi/g Europium-152 U -0.0163 +/-0.0602 0.0399 +/-0.0602 0.0797 pCi/g Europium-154 U 0.0308 +/-0.0617 0.0546 +/-0.0617 0.109 pCi/g Europium-155 U -0.00595 +/-0.0475 0.0432 +/-0.0475 0.0863 pCilg Lead-212 0.522 +/-0.0644 0.0236 +/-0.0644 0.0471 pCilg Lead-214 0.526 +/-0.0863 0.030 +/-0.0863 0.060 pCi/g Manganese-54 U-0.000609 +/-0.0184 0.0161 +/-0.0184 0.0321 pCi/g Niobium-94 U -0.00403 +/-0.0177 0.0148 +/-0.0177 0.0295 pCi/g Potassium-40 9.11 +/-0.880 0.154 +/-0.880 0.308 pCi/g Radium-226 0.459 +/-0.0759 0.0254 +/-0.0759 0.0508 pCi/g Silver-i O8m U -0.00351 +/-0.0164 0.0142 +/-0.0164 0.0284 pCi/g Thallium-208 0.181 +/-0.039 0.0152 +/-0.039 0.0303 pCi/g Rad Gas Flow Proportional Counting GFPC, SO9O, solid-ALL ESS Strontium-90 U 0.00395 +/-0.0227 0.0185 +/-0.0227 0.0427 pCi/g KSDI 02/02/07 1825 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 01/30/07 1121 606002 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-007F Project: YANK01204 Sample ID: 179837009 Client ID: YANKOO I Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA units DF Analyst Date Time Batch A~

Surrogate/Traceir recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr90, solid-ALL FSS 67 (25%-125%)

Carrier/Tracer Recovery GFPC, Sr9O, solid-ALL ESS 67 (25%-125%)

Notes:

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

• 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

• Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification

• Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier

• QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.

54

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-008F Project: YANK01 204 Sample ID: 179837010 Client ID: YANKOOI Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 5.4%

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch A Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 In growth Waived Actinium-228 0.543 +1-0.146 0.0651 +/-0.146 0.130 pCi/g MJH1 02/05/07 0820 606830 Americium-241 U 0.0298 +/-0.0282 0.0244 +/-0.0282 0.0488 pCi/g Bismuth-212 U 0.141 +/-0.271 0.135 +/-0.271 0.270 pCi/g Bismuth-214 0.375 +/-0.0799 0.0291 +/-0.0799 0.0582 pCilg Cesium-134 U -0.0112 +/-0.0234 0.0198 +/-0.0234 0.0395 pCilg Cesium-137 U 0.021 +/-0.0267 0.0133 +/-0.0267 0.0267 pCi/g Cobalt-60 U 0.00109 +/-0.0214 0.018 +/-0.0214 0.0361 pCi/g Europium-152 U 0.0175 +/-0.0662 0.0421 +/-0.0662 0.0841 pCi/g Europium-154 U -0.0135 +/-0.0691 0.0571 +/-0.0691 0.114 pCi/g Europium-155 U -0.0252 +/-0.0412 0.0366 +/-0.0412 0.0732 pCi/g Lead-212 0.490 +/-0.0682 0.0225 +/-0.0682 0.0451 pCi/g Lead-214 0.511 +/-0.0945 0.0308 +/-0.0945 0.0616 pCi/g Manganese-54 U 0.00531 +/-0.0204 0.0182 +/-0.0204 0.0363 pCi/g Niobium-94 UI 0.00 +/-0.0316 0.0185 +/-0.0316 0.037 pCi/g Potassium-40 9.43 +/-0.946 0.0728 +/-0.946 0.145 pCi/g Radium-226 0.375 +/-0.0799 0.0291 +/-0.0799 0.0582 pCi/g Silver-108m U -0.00012 +/-0.0177 0.0136 +/-0.0177 0.0271 pCi/g Thallium-208 0.177 +/-0.0398 0.015 +/-0.0398 0.0299 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, solid-ALL FSS Strontium-90 U 0.0144 +/-0.021 0.0159 +/-0.021 0.0363 pCi/g KSD1 02/02/07 1825 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep D~ry Soil Prep GL-RAD-A-021 JMB1 01/30/07 1121 606002 The following Analytical Methods were performed Method Description 1 EML HASL 300, 4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits

-55

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - wvww.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-008F Project: YANK01204 Sample ID: 179837010 Client ID: YANKO0l Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr90, solid-ALL FSS 75 (25%-I125%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 75 (25%-125%)

Notes:

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

• 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.

131 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

• Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

Ul Gamma Spectroscopy--Uncertain identification

• Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier

• 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.

56

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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-009F Project: YANKOI2O4 Sample ID: 179837011 Client ID: YANKOOI Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 6.5%

Parameter Qualifier Result Uncertainty LC TPU NMA Units DF Analyst Date Time Batch IN Rad Gamma Spec Analysis Gamma,Solid- FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.515 +/-0.121 0.0424 +/-0.121 0.0847 pCi/g MJH1 02/05/07 0821 606830 Americium-241 U -0.0941 +/-0.107 0.0846 +/-0.107 0.169 pCi/g Bismuth-212 0.488 +/-0.227 0.092 +/-0.227 0.184 pCi/g Bismuth-214 0.398 +/-0.077 0.0266 +/-0.077 0.0532 pCi/g Cesium-I 34 U 0.0173 +/-0.0224 0.0155 +/-0.0224 0.0309 pCi/g Cesium-137 U 0.00838 +/-0.015 0.0133 +/-0.015 0.0267 pCi/g Cobalt-60 U 0.00517 +/-0.0137 0.012 +/-0.0137 0.024 pCi/g Europium-152 U 0.0188 +/-0.0512 0.0363 +/-0.0512 0.0725 pCi/g Europium-154 U -0.015 +/-0.0486 0.0399 +/-0.0486 0.0797 pCi/g Europium-155 U -0.012 +/-0.0525 0.0478 +/-0.0525 0.0954 pCi/g Lead-212 0.475 +/-0.0569 0.0224 +/-0.0569 0.0448 pCi/g Lead-214 0.459 +/-0.0756 0.0243 +/-0.0756 0.0486 pCi/g Manganese-54 U -0.00876 +/-0.0141 0.0118 +/-0.0141 0.0235 pCi/g Niobium-94 U -0.0071 +/-0.0139 0.0114 +/-0.0139 0.0227 pCi/g Potassium-40 9.88 +/-0.841 0.105 +/-0.841 0.211 pCi/g Radium-226 0.398 +/-0.077 0.0266 +/-0.077 0.0532 pCi/g Silver-108m U -0.00232 +/-0.0127 0.0111 +/-0.0127 0.0222 pCi/g Thallium-208 0.125 +/-0.0362 0.0124 +/-0.0362 0.0248 pCi/g Rad Gas Flow Proportional Counting GFPC, SO9O, solid-ALL FSS Strontium-90 U -0.0017 +/-0.0216 0.0184 +/-0.0216 0.0425 pCi/g KSDI 02/02/07 1825 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 1MB] 01/30/07 1121 606002 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-009F Project: YANKOl1204 Sample ID: 179837011 Client ID: YANKOOI Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr90, solid-ALL FSS 63 (25%-i125%)

Carrier/Tracer Recovery GFPC, SrOO, solid-ALL FSS 63 (25%-I125%)

Notes:

The Qualifiers in this report are defined as follows:

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

• • 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 GCIMS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected

• 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.

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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-OIOF Proiect: YANKO 1204 Sample ID: 179837012 Client ID: YANK001 Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 7.5 1%

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

Rad Gamma Spec Analysis Gamma,Solid-FSS GAMf & ALL FSS 226 Ingrowth Waived Actinium-228 0.558 +/-0.138 0.0564 +/-0.138 0.113 pCi/g MJIi 02/05/07 0821 606830 Americium-24 I U 0.0477 +/-0.0758 0.0633 +/-0.0758 0.127 pCi/g Bismuth-212 0.509 +/-0.304 0.121 +/-0.304 0.243 pCilg Bismuth-214 0.445 +/-0.084 0.0361 +/-0.084 0.0722 pCilg Cesium-134 UI 0.00 +/-0.0227 0.0209 +/-0.0227 0.0418 pCi/g Cesium-137 0.0341 +/-0.0236 0.0166 +/-0.0236 0.0331 pCi/g Cobalt-60 U -0.00388 +/-0.0205 0.0169 +/-0.0205 0.0338 pCi/g Europium-152 U -0.00455 +/-0.0673 0.0452 +/-0.0673 0.0904 pCi/g Europium-154 U 0.011 +/-0.0616 0.0532 +/-0.0616 0.106 pCi/g Europium-iSS U 0.0304 +/-0.0635 0.048 +/-0.0635 0.096 pCi/g Lead-212 0.587 +/-0.0716 0.0249 +/-0.0716 0.0497 pCi/g Lead-214 0.453 +/-0.0841 0.0342 +/-0.0841 0.0684 pCi/g Manganese-54 U 0.0127 +/-0.0197 0.0181 +/-0.0197 0.0361 pCi/g Niobium-94 U -0.00184 +/-0.0181 0.0152 +/-0.0181 0.0305 pCi/g Potassium-40 9.86 +/-0.959 0.128 +/-0.959 0.255 pCi/g Radium-226 0.445 +/-0.084 0.0361 +/-0.084 0.0722 pCi/g Silver-108m U 0.00512 +/-0.0166 0.0148 +/-0.0166 0.0297 pCi/g Thallium-208 0.164 +/-0.0397 0.0161 +/-0.0397 0.0321 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, solid-ALL FSS Strontium-90 U -0.005 +/-0.0187 0.0164 +/-0.0187 0.0376 pCi/g KSDI 02/02/07 1825 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 01/30/07 1121 606002 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 2 EPA 905.0 Modified Surrogate/T racer recovery Test Recovery% Acceptable Limits 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Saimple ID: 9312-0008-OIOF Project: YANK01204 Sample ID: 179837012 Client ID: YANKOOI Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, SrOO, solid-ALL FSS 76 (25%-I 25%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 76 (25%-I125%)

Notes:

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

• 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 GCIMS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit

• Sample results are rejected

• Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification

• Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier

• QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.

60

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address :362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-012F Proiect: YANK01204 Sample ID: 179837013 Client ID: YANKO0l Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 8.11%

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

Rad Gamma Spec Analysis Gatnma,Solid-FSSGAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.443 +1-0.126 0.0608 +/-0.126 0.122 pCi/g MJIi 02/05/07 0822 606830 Americium-241 Ul 0.00 +/-0.0781 0.0435 +/-0.0781 0.0869 pCi/g Bismuth-212 U 0.201 +/-0.182 0.137 +/-0.182 0.274 pCi/g Bismuth-214 0.411 +/-0.088 0.0334 +/-0.088 0.0668 pCi/g Cesium-134 UI 0.00 +/-0.0343 0.0223 +/-0.0343 0.0445 pCi/g Cesium-I 37 U -0.003 17 +/-0.0211 0.0178 +/-0.0211 0.0357 pCi/g Cobalt-60 U 0.00656 +/-0.0186 0.0163 +/-0.0186 0.0326 pCi/g Europium-152 U -0.00572 +/-0.0629 0.0488 +/-0.0629 0.0975 pCi/g Europium-I 54 U 0.00908 +/-0.0712 0.0524 +/-0.0712 0.105 pCi/g Europium-ISS U -0.0478 +/-0.0541 0.046 +/-0.0541 0.0919 pCi/g Lead-212 0.490 +/-0.0623 0.028 +/-0.0623 0.056 pCi/g Lead-214 0.462 +/-0.0865 0.0339 +/-0.0865 0.0677 pCi/g Manganese-54 U 0.00564 +/-0.0194 0.0173 +/-0.0194 0.0346 pCi/g Niobium-94 U 0.00625 +/-0.0185 0.016 +/-0.0185 0.0321 pCi/g Potassium-40 10.2 +/-0.970 0.143 +/-0.970 0.286 pCi/g Radium-226 0.411 +/-0.088 0.03 34 +/-0.088 0.0668 pCi/g Silver-108m U 0.00275 +/-0.0194 0.0166 +/-0.0194 0.0331 pCi/g Thallium-208 0.148 +/-0.0387 0.0172 +/-0.0387 0.0344 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, solid-ALL FSS Strontium-90 U 0.01 38 +/-0.0228 0.0174 +/-0.0228 0.0398 pCi/g KSDI 02/02/07 1825 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 01/30/07 1121 606002 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 61

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - wvww.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-012F Project: YANK01204 Sample ID: 179837013 Client ID: YANKOO I Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MIDA units DF Analyst Date Time Batch 1%

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr90, solid-ALL FSS 64 (25 %-1 25%)

Carrier/Tracer Recovery GFPC, Sr9O, solid-ALL FSS 64 (25%-1 25%)

Notes:

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

• 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.

BD1 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

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

62

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analy:sis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-01 3F Project: YANK01 204 Sample ID: 179837014 Client ID: YANKOO 1 Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 7.45%

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

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.546 +/-0.209 0.0801 +/-0.209 0.160 pCi/g MJHI 02/05/07 0830 606830 Americium-241 U -0.0464 F/-0.0329 0.0284 +/-0.0329 0.0569 pCi/g Bismuth-212 0.347 +/-0.271 0.149 +/-0.271 0.298 pCi/g Bismuth-214 0.516 +/-0.1 12 0.039 +/-0.112 0.078 pCi/g Cesium-134 U 0.0179 F/-0.0303 0.0276 +/-0.0303 0.0553 pCi/g Cesium-137 U 0.022 +/-0.027 0.0252 +/-0.027 0.0504 pCi/g Cobalt-60 U -0.0221 +/-0.028 0.0205 +/-0.028 0.041 pCi/g Europium-152 U 0.0215 FI-0.072 1 0.0499 +/-0.0721 0.0997 pCi/g Europium-154 U -0.00577 F/-0.0849 0.0706 +/-0.0849 0.141 pCi/g Europium-iSS U 0.013 +/-0.046 0.0454 +/-0.046 0.0908 pCi/g Lead-212 0.515 +/-0.0721 0.0267 +1-0.0721 0.0534 pCi/g Lead-214 0.461 +/-0.0998 0.0358 +/-0.0998 0.0716 pCi/g Manganese-54 U -0.00498 +/-0.0283 0.0242 +/-0.0283 0.0483 pCi/g Niobium-94 U 0.00882 +/-0.024 0.0208 +/-0.024 0.0416 pCi/g Potassium-40 9.81 +/-0.954 0.185 +/-0.954 0.370 pCi/g Radium-226 0.516 +/-0.112 0.039 +/-0.112 0.078 pCi/g Silver-108m U 0.0147 +/-0.0227 0.0182 +/-0.0227 0.0364 pCi/g Thallium-208 0.187 +/-0.0473 0.0201 +/-0.0473 0.0402 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, solid-ALL FSS Strontium-90 U 0.00952 i-/-0.0174 0.0132 +/-0.0174 0.0309 pCi/g KSD1 02/02/07 1826 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 IMBi1 01/30/07 1121 606002 The following Analytical Methods were performed Method Description 1 EML HASL 300,4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits 63

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel~com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-013F Project: YANK01204 Sample ID: 179837014 Client ID: YANKO0l Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch A Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr9O, solid-ALL FSS 76 (25%-I125%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 76 (25%-125%)

Notes:

The Qualifiers in this report are defined as follows:

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

• • 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

• Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

Ul Gamma Spectroscopy--Uncertain identification

• Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier

• QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.

64

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company :Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 931 2-0008-014F Project: YANKOI 204 Sample ID: 179837015 Client ID: YANKOQI Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 6.59%

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

Rad Gamma Spec Analysis Gamrna,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.487 +/-0.156 0.0601 +/-0.156 0.120 pCi/g MJHI 02/05/07 0926 606830 Americium-241 U 0.0405 +/-0.0918 0.0771 +/-0.0918 0.154 pCi/g Bismuth-212 0.481 +/-0.317 0.128 +/-0.317 0.255 pCi/g Bismuth-214 0,463 +/-0.0808 0.0308 +/-0.0808 0.0616 pCi/g Cesium-134 U 0.0331 +/-0.0249 0.0206 +/-0.0249 0.0411 pCi/g Cesium-137 U 0.014 +/-0.0222 0.0198 +/-0.0222 0.0397 pCi/g Cobalt-60 U -0.014 +/-0.0306 0.0199 +/-0.0306 0.0399 pCi/g Europium-152 U -0.0425 +/-0.0581 0.0444 +/-0.0581 0.0887 pCi/g Europium-154 U -0.0101 +/-0.0716 0.0593 +/-0.0716 0.119 pCi/g Europium-I 55 U 0.0595 +/-0.0546 0.0525 +/-0.0546 0.105 pCi/g Lead-212 0.499 +/-0.0695 0.0256 +/-0.0695 0.05 13 pCi/g Lead-214 0.458 +/-0.0956 0.0333 +/-0.0956 0.0666 pCi/g Manganese-54 U 0.0172 +/-0.0281 0.0194 +/-0.0281 0.0387 pCi/g Niobium-94 U 0.0143 +/-0.0191 0.0172 +/-0.0191 0.0343 pCi/g Potassium-40 9.78 +/-1.07 0.137 +/-1.07 0.273 pCi/g Radium-226 0.463 +/-0.0808 0.0308 +/-0.0808 0.06 16 pCi/g Silver-108m U -0.00416 +/-0.0188 0.014 +/-0.0188 0.0279 pCi/g Thallium-208 UI 0.00 +/-0.046 0.0334 +/-0.046 0.0668 pCi/g Rad Gas Flow Proportional Counting GFPC, SO9O, solid-ALL FSS Strontium-90 U 0.00392 +/-0.0226 0.0184 +/-0.0226 0.0425 pCi/g KSDI 02/02/07 1826 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 01/30/07 1121 606002 The following Analytical Methods were performed Method Description 1 EML HASL 300,4.5.2.3 2 EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery% Acceptable Limits 65

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-014F Project: YANK01204 Sample ID: 179837015 Client ID: YANKOO I Vol. Recv.:

Parameter Qualifier Result Uncertainty LC TPU NMA Units DF Analyst Date Time Batch A~

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr90, solid-ALL FSS 67 (25%-I 25%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 67 (25%-1 25%)

Notes:

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

• 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.

BD1 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

• Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.

UI Gamma Spectroscopy--Uncertain identification

• Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier

• QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using -i--RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.

66

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-01 5F Project: YANK01204 Sample ID: 179837016 Client ID: YANKO0l Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 10.5%

Parameter Qualifier Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch N%

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 In growth Waived Actinium-228 1.06 +/-0.204 0.0615 +1-0.204 0.123 pCi/g MJIi 02/05/07 1109 606830 Americium-241 U 0.192 +/-0.117 0.0998 +/-0.117 0.200 pCi/g Bismuth-212 0.719 +/-0.313 0.161 +/-0.313 0.321 pCi/g Bismuth-214 0.895 +/-0.131 0.0398 ÷1-0.131 0.0795 pCi/g Cesium-] 34 UI 0.00 +/-0.0465 0.0263 +/-0.0465 0.0526 pCi/g Cesium-137 U 0.022 +/-0.0276 0.0242 +/-0.0276 0.0484 pCi/g Cobalt-60 U 0.00334 +/-0.0263 0.0223 +/-0.0263 0.0445 pCi/g Europium-152 U -0.00826 +/-0.0757 0.0576 +/-0.0757 0.115 pCi/g Europium-154 U -0.0645 +/-0.0843 0.065 +/-0.0843 0.130 pCi/g Europium-155 U -0.00643 +/-0.0742 0.0659 +/-0.0742 0.132 pCi/g Lead-212 0.899 +/-0.101 0.0332 +/-0.101 0.0664 pCi/g Lead-214 1.05 +/-0.145 0.0409 +/-0.145 0.0818 pCi/g Manganese-54 UI 0.00 +/-0.034 1 0.0209 +/-0.0341 0.0418 pCi/g Niobium-94 U 0.01 78 +/-0.0233 0.0206 +/-0.0233 0.0411 pCi/g Potassium-40 15.5 +/-1.38 0.187 +/-1.38 0.374 pCi/g Radium-226 0.895 +/-0.131 0.0398 +/-0.131 0.0795 pCi/g Silver-108m U -0.0183 +/-0.0221 0.0182 +/-0.0221 0.0363 pCi/g Thallium-208 0.276 +/-0.0606 0.0221 +1-0.0606 0.0443 pCilg Rad Gas Flow Proportional Counting GFPC, SrOO, solid-ALL FSS Strontium-90 0.0441 +/-0.0256 0.0181 +1-0.0256 0.0395 pCi/g KSDI 02/02/07 1826 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI1 01/30/07 1121 606002 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 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-015F Project: YANKO01204 Sample ID: 179837016 Client ID: YANKOQI Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr90, solid-ALL FSS 77 (25%-125%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 77 (25%-I125%)

Notes:

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

• 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 Anallyte 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

• 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.

68

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-016-I Project: YANKO 1204 Sample ID: 179837017 Client ID: YANKOO 1 Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 10.2%

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

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.25 +1-0.223 0.0656 +1-0.223 0.131 pCi/g MJHI 02/05/07 1109 606830 Americium-241 U 0.0454 +/-0.109 0.0905 +/-0.109 0.181 pCi/g Bismuth-212 0.869 +/-0.268 0.131 +/-0.268 0.261 pCi/g Bismuth-214 1.24 +/-0.150 0.0319 +/-0.150 0.0637 pCi/g Cesium-134 Ut 0.00 +/-0.0387 0.0252 +/-0.0387 0.0503 pCi/g Cesium-137 0.0491 +/-0.0343 0.018 +/-0.0343 0.0361 pCi/g Cobalt-60 0.0791 +1-0.0449 0.0177 +/-0.0449 0.0355 pCi/g Europium-152 U 0.056 +/-0.0598 0.0483 +/-0.0598 0.0966 pCi/g Europium-154 U 0.0675 +/-0.0743 0.0583 +/-0.0743 0.117 pCi/g Europium-ISS U 0.0671 +/-0.0755 0.0563 +/-0.0755 0.112 pCi/g Lead-212 1.14 +/-0.104 0.0275 +/-0.104 0.0549 pCi/g Lead-214 1.35 +/-0.139 0.0321 +/-0.139 0.0641 pCi/g Manganese-54 U 0.0252 +/-0.0244 0.0189 +/-0.0244 0.0377 pCi/g Niobium-94 U -0.00185 +/-0.0205 0.0172 +/-0.0205 0.0344 pCi/g Potassium-40 19.4 +/-1.53 0.170 +/-1.53 0.340 pCi/g Radium-226 1.24 +/-0.150 0.0319 +/-0.150 0.0637 pCi/g Silver-108m U -0.0167 +/-0.0212 0.0153 +/-0.0212 0.0306 pCi/g Thallium-208 0.409 +/-0.0587 0.0163 +/-0.0587 0.0327 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, solid-ALL FSS Strontium-90 0.0499 +/-0.0246 0.0167 +/-0.0246 0.0366 pCi/g KSD 1 02/02/07 1826 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI1 01/30/07 1121 606002 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 93 12-0008-016-1 Project: YANK01204 Sample ID: 179837017 Client ID: YANKOOI Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, SrOO, solid-ALL FSS 76 (25%-125%)

Carrier/Tracer Recovery GFPC, Sr9O, solid-ALL FSS 76 (25%-I125%)

Notes:

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

• 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 anallyte was detected in the associated blank.

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

• 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 +f-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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-017-I Project: YANK01204 Sample ID: 179837018 Client ID: YANKOO 1 Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 11.4%

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

Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 In growth Waived Actinium-228 1.27 +/-0.220 0.0624 +/-0.220 0.125 pCi/g MJH1 02/05/07 1110 606830 Americium-241 U 0.0346 +/-0.112 0.0924 +/-0.112 0.185 pCi/g Bismuth-212 0.664 +1-0.251 0.139 +/-0.251 0.278 pCi/g Bismuth-214 1.20 +/-0.148 0.0326 +/-0.148 0.0652 pCi/g Cesium-I 34 U 0.0358 +/-0.0343 0.0228 +/-0.0343 0.0456 pCi/g Cesium-I 37 0.0421 +/-0.0307 0.0205 +/-0.0307 0.041 pCi/g Cobalt-60 U -0.00817 +/-0.0243 0.0198 +/-0.0243 0.0395 pCi/g Europium-152 U -0.0174 +/-0.0698 0.0502 +/-0.0698 0.100 pCi/g Europium-154 U -0.0316 +/-0.0771 0.0628 +/-0.0771 0.126 pCi/g Europium-155 U 0.0497 +/-0.0681 0.0625 +/-0.0681 0.125 pCi/g Lead-212 1.23 +/-0.112 0.0299 +/-0.112 0.0598 pCi/g Lead-214 1.41 +/-0.148 0.037 +/-0.148 0.0739 pCi/g Manganese-54 U 0.014 +/-0.023 0.0188 +/-0.023 0.0376 pCi/g Niobium-94 U 0.017 +/-0.0205 0.0181 +/-0.0205 0.0362 pCilg Potassium-40 19.3 +/-1.59 0.152 +1-1.59 0.303 pCi/g Radium-226 1.20 +/-0.148 0.0326 +/-0.148 0.0652 pCi/g Silver-108m U 0.000814 +/-0.0188 0.0165 +/-0.0188 0.0329 pCi/g Thallium-208 0.395 +/-0.0595 0.0175 +/-0.0595 0.035 pCi/g Rad Gas F~low Proportional Counting GFPC, SO9O, solid-ALL FSS Strontium-90 U 0.0189 +/-0.0239 0.0178 +/-0.0239 0.0405 pCi/g KSD1 02/02/07 1826 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 01/30/07 1121 606002 The following Analytical Methods were performed Method Description 1 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 93 12-0008-017-1 Project: YANK01204 Sample ID: 179837018 Client ID: YANKO0l Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr90, solid-ALL FSS 75 (25%-125%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 75 (25%-125%)

Notes:

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

• 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.

BD1 Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GCIMS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected

• 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.

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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9312-0008-018-I Project: YANKO 1204 Sample ID: 179837019 Client ID: YANKOO I Matrix: TS Vol. Recv.:

Collect Date: 24-JAN-07 Receive Date: 30-JAN-07 Collector: Client Moisture: 12.8%

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

Rad Gamma Spec Analysis Gamnia,Solid-FSSGAM & ALL FSS 226 In growth Waived Actinium-228 1.02 +/-0.267 0.0975 +/-0.267 0.195 pCi/g MIHI 02/05/07 1110 606830 Americium-241 U 0.0887 +/-0.058 0.0495 +/-0.058 0.099 pCi/g Bismuth-212 0.993 +/-0.446 0.214 +/-0.446 0.427 pCilg Bismuth-214 1.26 +/-0.190 0.0559 +I-0.190 0.112 pCi/g Cesium-134 UI 0.00 +/-0.0662 0.0379 +/-0.0662 0.0757 pCilg Cesium-137 U 0.0386 +1-0.046 0.031 ÷/-0.046 0.0619 pCilg Cobalt-60 U -0.0115 +1-0.0347 0.0265 +/-0.0347 0.053 pCilg Europium-152 U -0.0297 +/-0.094 0.0714 +/-0.094 0.143 pCi/g Europium-154 U 0.00484 +/-0.114 0.0958 +/-0.114 0.191 pCi/g Europium-I 55 U 0.139 +/-0.107 0.0712 +/-0.107 0.142 pCilg Lead-212 1.24 +/-0.139 0.0405 +/-0.139 0.0809 pCilg Lead-214 1.35 +/-0.170 0.0555 +/-0.170 0.111 pCi/g Manganese-54 U-0.000934 +/-0.0344 0.030 +/-0.0344 0.0599 pCi/g Niobium-94 U 0.0147 +/-0.031 0.0269 +1-0.031 0.0538 pCi/g Potassium-40 18.4 +I-1.58 0.224 +/-1.58 0.448 pCi/g Radium-226 1.26 +/-0.190 0.0559 +/-0.190 0.112 pCi/g Silver-108m U-0.000654 +/-0.0283 0.0248 +/-0.0283 0.0496 pCi/g Thallium-208 0.414 +/-0.075 0.0271 +/-0.075 0.0541 pCi/g Rad Gas Flow Proportional Counting GFPC, Sr9O, so/id-ALL FSS Strontium-90 U 0.00454 +/-0.021 1 0.017 +/-0.0211 0.0397 pCi/g KSDI 02/02/07 1826 606160 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 IMBI 01/30/07 1121 606002 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: February 6, 2007

Contact:

Mr. Jack McCarthy Project: Soils P04* 002332 Client Sample ID: 9312-0008-018-1 Project: YANK01204 Sample ID: 179837019 Client ID: YANKOOlI Vol. Recv.:

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

Surrogate/Tracer recovery Test Recovery% Acceptable Limits Strontium-90 GFPC, Sr90, solid-ALL FSS 62 (25%-125%)

Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS 62 (25%-I125%)

Notes:

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

• 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 Anialyte 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

• Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier

• 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 Revort Date: February 6, 2007

'lient: Connecticut Yankee Atomic Power Page 1 of 9 362 Injun Hollow Rd East Hampton, Connecticut

.ontact: Mr. Jack McCarthy Vorkorder: 179837 arnmame NOM Samule Ouai OC Units RPD% REC% Ran2e AnIst Date Time ad Alpha Spec itch 606029 QC1201269931 179836001 DUP

,mericiumn-241 U 0.0303 U -0.0117 pCi/g 452 (0% -100%)DLXH2 02/01/07 07:43 Uncert: +/-0.158 +/-0.0702 TPU: +/-0.158 +/-0.0702

.urium-242 U -0.0361 U 0.00126 pCi/g 214 (0% -100%)

Uncert: +/-0.0751 +/-0.0685 TPU: +/-0.0752 +/-0.0685

.urium-243/244 U -0.0502 U 0.125 pCi/g 468 (0% -100%)

Uncert: +/-0.164 ÷1-0.165 TPU: +1-0.164 +/-0.165 QC1201269933 LCS

.mericium-241 13.0 12.7 pCi/g 98 (75%-125%)

Uncert: +1-1.17 TPU: +/-2.02

.Urium-242 U -0.0203 pCi/g Uncert: +/-0.023 TPU: +/-0.0231

'Urium-243/244 15.6 14.8 PCi/g 95 (75%-125%)

Uncert: +/-1.26 TPU: +/-2.30 MB

,mericium-24 I U 0.0301 pCi/g Uncert: +/-0.058 TPU: +/-0.0582

.urium-242 U -0.00707 PCi/g Uncert: +/-0.0594 TPU: +/-0.0594

.Urium-243/244 U 0.103 pCi/g Uncert: +/-0.116 TPU: +/-0.117 QC1201269932 179836001 MS

.mericium-241 14.0 U 0.0303 13.0 PCi/g 93 (75%-125%)

Uncert: +/-0.158 +/-1.35 TPU: +/-0.158 +/-2.22 lurium-242 -0.0361 U 0.0316 pCi/g U

Uncert: +/-0.075 1 +/-0.138 TPU: +/-0.0752 +/-0.138

.urium-243/244 16.8 U -0.0502 17.9 PCi/g 107 (75%-125%)

Uncert: +/-0.164 +/-1.59 TPU: +/-0.164 +/-2.90 itch 606031 QC1201269936 179836001 DUP lutoniuni-238 U 0.0727 U 0.130 pCi/g 57 (0% - 100%) DXH2 01/31/07 15:54 76

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 179837 Page 2 of 9 armname NOM Sample Qual QC Units RPD% REC % Range AnIst Date Time ad Alpha Spec itch 606031 Uncert: +/-0.0998 +/-0.196 TPU: +/-0.100 +/-0.197

]utonium-239/240 U 0.00 U -0.0516 pCi/g 200 (0% -100%)

Uncert: +/-0.0566 +/-0.0413 TPU: +/-0.0566 +/-0.0418 QC1201269938 LCS lutonium-238 U 0.0519 pCi/g (75%-I125%)

Uncert: +/-0.226 TPU: +/-0.226 lutonium-239/240 12.9 12.7 pCi/g 98 (75%-125%)

Uncert: +/-1.25 TPU: ÷1- 1.95 QC1201269935 MB~

lutonium-238 U 0.0132 pCi/g Uncert: +/-0.143 TPU: +/-0.143 lutonium-239/240 U -0.0224 pCi/g Uncert: +/-0.0767 TPU: +/-0.0767 QC1201269937 179836001 MIS lutonium-238 U 0.0727 u -0.014 pCi/g (75%-I125%)

Uncert: +/-0.0998 +/-0.0723 TPU: +/-0.100 +/-0.0723 lutonium-239/240 13.9 U 0.00 13.5 pCi/g 97 (75%-125%)

Uncert: +/-0.0566 +/-1.29 TPU: +/-0.0566 +/-2.03 itch 606032 QC1201269940 179836001 DUP lutonium-241 U -3.0 U -3.33 pCi/g 0 (0% - 100%) DXH2 02/02/07 08:14 Unceri: +/-6.37 +/-7.09 TPU: +/-6.37 +/-7.09 QC1201269942 LCS lutonium-24 I 140 108 pCi/g 77 (75%-125%) 02/01/07 11:12 Uncert: +/-11.6 TPU: +/-15.7 QC1201269939 MB3 lutonium-241 U -3.23 pCilg 02/01/07 10:24 Uncert: +/-6.45 TPU: +/-6.45 QC1201269941 179836001 MIS lutonium-241 142 U -3.0 138 pCilg 97 (75%-125%) 02/01/07 10:56 Uncert: +/-6.37 +/-13.9 TPU: +/-6.37 +/-19.8 ad Gamma Spec itch 606830 QC1201271731 179837001 DUP

,ctinium-228 0.587 0.511 pCi/g 14 (0% - 100%) MJHI1 02/05/07 14:54 Uncert: +/-0.146 +/-0.176

+/-0.176 77

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 179837 Page 3 of 9 armname, NOM Sample Qual QC Units RPD% REC% Range Anist Date Time ad Gamma Spec itch 606830 TPU: +/-0.146

,mericium-241 U 0.0353 U -0.0187 pCi/g 654 (0% -100%)

Uncert: +/-0.0842 +/-0.0861 TPU: +/-0.0842 +/-0.0861

ismuth-21 2 0.283 0.439 pCi/g 43 (0% -100%)

Uncert: +/-0.205 +/-0.247 TPU: +/-0.205 +/-0.247

ismuth-2 14 0.564 0.365 pCi/g 43 (0% -100%)

Uncert: +/-0.0926 +/-0.0778 TPU: +1-0.0926 +/-0.0778 lesium- 134 Ul 0.00 U 0.0186 pCi/g 91 (0% -100%)

Uncert: +/-0.0223 +/-0.0403 TPU: +/-0.0223 +/-0.0403

.esium- 137 U 0.00537 U 0.0121 pCi/g 77 (0% -100%)

Uncert: +/-0.0187 +/-0.0188 TPU: +/-0.0187 +/-0.0188

.obalt-60 U -0.013 U -0.00172 pCi/g 153 (0% -100%)

Uncert: +/-0.0185 +/-0.019 TPU: +1-0.01 85 +/-0.019

,uropium- 152 U 0.0071 U -0.01 97 pCi/g 425 (0% -100%)

Uncert: +/-0.0593 +/-0.0561 TPU: +/-0.0593 +/-0.0561

.uropium-1 54 U 0.0232 U 0.0364 pCi/g 45 (0% -100%)

Uncert: +/-0.0607 +/-0.0609 TPU: +1-0.0607 +/-0.0609

,uropium- 155 U -0.0124 U 0.0483 pCi/g 338 (0% -100%)

Uncert: +/-0.0549 +/-0.0526 TPU: +/-0.0549 +/-0.0526

.ead-21 2 0.564 0.483 pCi/g 16 (0%-20%)

Uncert: +1-0.0677 +/-0.0634 TPU: +/-0.0677 +/-0.0634

,ead-21 4 0.503 0.447 pCi/g 12 (0%-20%)

Uncert: +/-0.080 +/-0.0782 TPU: +/-0.080 +/-0.0782 langanese-54 U -0.00293 U -0.00155 Pci/g 62 (0% -100%)

Uncert: +1-0.0178 +/-0.01 63 TPU: +/-0.0178 +/-0.0163 liobium-94 U 0.00658 U 0.00792 pCi/g 19 (0% -100%)

Uncert: +/-0.0164 +/-0.0162 TPU: +/-0.0164 +/-0.0162 otassium-40 8.96 9.47 pCi/g 6 (0% -20%)

Uncert: +1-0.985 +/-0.923 TPU: +/-0.985 +/-0.923

.adium-226 0.564 0.365 Pci/g 43 (0% -100%)

Uncert: +/-0.0926 +/-0.0778 TPU: +/-0.0926 +/-0.0778 ilver-1I08m U 0.00437 U -0.0064 pCi/g 1060 (0% -100%)

Uncert: +/-0.0169 +/-0.0163 78

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 179837 Page 4 of' 9 armname NOM Sample Qual OC Units RPD% REC% Range Anist Date Time ad Gamma Spec itch 606830 TPU: ÷/-0.0169 +/-0.0163

'hallium-208 0.159 0.185 pCi/g 16 (0%-100%)

Uncert: +/-0.0453 +/-0.0404 TPU: +/-0.045 3 +/-0.0404 LCS

,ctinium-228 U 0.00856 pCi/g 02/05/07 14:54 Uncert: +/-0.651 TPU: +/-0.651

,mericium-241 23.4 25.8 pCi/g 111 (75%-125%)

Uncert: +/-2.96 TPU: +/-2.96

ismuth-21 2 U 0.394 pCi/g Uncert

+/-0.992 TPU: +/-0.992

ismuth-2 14 U 0.186 pCi/g Uncert

+/-0.229 TPU: +/-0.229

.esium-134 U 0.031 pCi/g Uncert: +/-0.142 TPU: +/-0.142

.esium-137 9.48 9.92 pCi/g 105 (75%-125%)

Uncert: +/-0.882 TPU: +/-0.882

.obalt-60 13.7 14.4 pCi/g 105 (75%-125%)

Uncert: +/-1.13 TPU: +/-1.13

.uropium-1 52 U -0.195 pCi/g Uncert: +/-0.314 TPU: +/-0.314

,uropium-154 U 0.294 pCi/g Uncert: +/-0.268 TPU: +/-0.268

.uropium-155 U -0.158 pCi/g Uncert: +/-0.310 TPU: +/-0.3 10

.ead-21 2 U -0.0813 pCi/g Uncert: +/-0.165 TPU: +/-0.165

,ead-214 U -0.0832 pCi/g Uncert: +/-0.217 TPU: +/-0.2 17 langanese-54 U 0.103 pCi/g Uncert: +/-0.138 TPU: +/-0.138

[iobium-94 U 0.0763 pCi/g Uncert: +/-0.118 TPU: +/-0.118 otassium-40 U 0.346 pCi/g 79

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 179837 Page 5 of 9 armname NOM Sampl Qual QC Units RPD% REC % Range Anist Date Time ad Gamma Spec itch 606830 Uncert: +/-0.815 TPU: +1-0.8 15

.adium-226 U 0.186 pCi/g (75%-I125%)

Uncert: +1-0. 229 TPU: +/-0.229 ilver- 108m U 0.0349 pCilg Uncert: +/-0.135 TPU: +/-0. 135 hallium-208 U 0.0328 pCilg Uncert: +/-0.118 TPU: +/-0.118 MB

,ctinium-228 U 0.0204 pCilg 02/05/07 14:53 Uncert: +/-0.0498 TPU: +/-0.0498

,meticium-24 I U 0.00915 Pcilg Uncert: +/-0.0438 TPU: +/-0.0438

ismuth-21 2 U -0.0217 Pcilg Uncert

+/-0.103 TPU: +/-0.103

ismuth-214 U -0.0281 pCi/g Uncert

+/-0.0308 TPU: +/-0.0308

,esiumn- 134 U 0.00327 pCilg Uncert: +/-0.0128 TPU: +1-0.0128

.esium- 137 U 0.000285 pCilg Uncert: +/-0.0118 TPU: +1-0.0118

.obalt-60 U -0.00754 pCi/g Uncert: +1-0.0175 TPU: +/-0.0175

.uropium- 152 U 0.00973 Pci/g Uncert: +/-0.032 1 TPU: +/-0.0321

.uropium- 154 U 0.0125 pCilg Uncert: +/-0.0317 TPU: +/-0.0317

,uropium-] 55 U -0.0186 pCilg Uncert: +/-0.0305 TPU: +/-0.0305

.ead-212 U 0.035 pCilg Uncert: +/-0.031 TPU: +/-0.031 ecad-214 U 0.00104 pCilg Uncert: +/-0.0285 TPU: +/-0. 0285 80

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 179837 Page 6 of 9 armname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time ad Gamma Spec itch 606830 langanese-54 U -0.0023 pCilg Uncert: +/-0.0124 TPU: +/-0.0124 liobium-94 U 0.0152 pCilg Uncert: +/-0.0123 TPU: +/-0.0123 otassium-40 Ul 0.00 pCilg Uncert: +1-0.193 TPU: +/-0.193

.adium-226 U -0.0281 pCilg Uncert: +/-0.0308 TPU: +/-0.0308 ilver- 1Om U 0.000938 PCilg Uncert: +/-0.0105 TPU: +1-0.0105

'hallium-208 U -0.0101 Pcilg Uncert: +1-0.0144 TPU: +/-0.0144 ad Gas Flow itch 606160 QC1201270176 179837001 DUP trontium-90 u 0.00356 U 0.00805 Pci/g 0 (0% - 100%) KSD1 02/02/07 18:24 Uncert: +/-0.0207 +/-0.0206 TPU: +/-0.0207 +/-0.0206 QC1201270178 LCS trontium-90 1.50 1.51 pCi/g 101 (75%-125%) 02/02/07 18:24 Uncert: +/-0.112 TPU: +/-0.121 QC1201270175 MB trontium-90 U -0.00234 Pci/g 02/02/07 18:24 Uncert: +1-0.0156 TPU: +/-0.0156 QC1201270177 179837001 MIS trontium-90 2.74 U 0.00356 2.77 pCi/g 101 (75%-125%) 02/02/07 18:24 Uncert: +/-0.0207 +1-0.199 TPU: +/-0.0207 +/-0.2 16 ad Liquid Scintillation itch 606162 QC1201270180 179836001 DUP echnetium-99 U -0.157 U -0.0277 pCi/g 0 (0% - 100%) KXR I 02/04/07 23:28 Uncert: +/-0.168 +/-0.173 TPU: +/-0.168 +/-0.173 QC1201270182 LCS

'echnetium-99 13.1 13.0 Pcilg 99 (75%-125%) 02/05/07 00:03 Uncert: +/-0.533 TPU: +/-0.622 QC1201270179 MB echnetium-99 U 0.158 pCilg 02/04/07 23:11 81

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 179837 Page 7 of 9 armname NOM Sample Qual QC Units RPD% REC % Range Anist Date Time ad Liquid Scintillation itch 606162 Uncert: +/-0.165 TPU: +1-0.165 QC1201270181 179836001 MIS echnetium-99 12.5 U -0.157 11.0 pCilg 88 (75%-125%) 02/04/07 23:46 Uncert: +/-0.168 +/-0.498 TPU: +/-0.168 +/-0.568 itch 606163 QC1201270184 179836001 DUP

[ickel-63 U -9.21 U 5.27 pCi/g 0 (0% - 100%) VIXPI 02/01/07 16:26 Uncert: +/-11.8 +1-10.9 TPU: +/-11.8 +/-10.9 QC1201270186 [CS fickel-63 563 508 pCilg 90 (75%-125%) 02/01/07 16:59 Uncert: +/-21.7 TPU: +/-28.4 QC1201270183 MB

[ickel-63 U -3.09 pCilg 02/01/07 16:10 Uncert: +/-10.3 TPU: +/- 10.3 QC1201270185 179836001 MIS

[ickel-63 567 U -9.21 554 pCi/g 98 (75%-125%) 02/01/07 16:43 Uncert: +/-11.8 +/-29.4 TPU: +1-11.8 +/-35.6 itch 606165 QC1201270188 179836001 DUP

-on-55 U 19.0 U 18.9 pCilg 0 (0% - 100%) %4XP1 02/03/07 11:33 Uncert: +/-62.6 +/-69.3 TPU: +/-62.6 +/-69.3 QC1201270190 LCS

-on-55 1190 1150 pCi/g 96 (75%-125%) 02/03/07 11:50 Uncert: +/-92.4 TPU: +/-113 QC1201270187 MB

-on-55 U 18.3 pCi/g 02/03/07 11:01 Uncert: +/-53.3 TPU: +/-5 3.3 QC1201270189 179836001 MIS

-on-55 1200 U 19.0 1160 pCi/g 96 (75%-125%) 02/03/07 11:17 Uncert: +/-62.6 +1-90.9 TPU: +/-62.6 +/-I I

ttch 606166 QC1201270192 179836001 DUP

'arbon-14 U -0.0109 U -0.05 17 pCi/g 0 (0% -100%) kXD2 01/31/07 21:13 Uncert: +/-0.0671 +/-0.0701 TPU: +/-0.067 1 +/-0.0701 QC1201270194 [CS

'arbon- 14 6.65 6.54 pCi/g 98 (75%-125%) 01/31/07 22:33 Uncert: +/-0.434 TPU: +/-0.446 82

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 179837 Page 8 of 9 armname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time ad Liquid Scintillation itch 606166 QC1201270191 M11

'arbon-14 U -0.0597 pCi/g 01/31/07 20:10 Uncert: +/-0.0694 TPU: +/-0.0694 QC1201270193 179836001 MIS

,arbon-14 7.19 U -0.0109 6.92 pCi/g 96 (75%-125%) 01/31/07 22:15 Uncert: +/-0.0671 +/-0.479 TPU: +/-0.0671 +/-0.491 itch 606167 QC1201270196 179837001 DUP

'ritium U 0.452 U 0.369 pCi/g 0 (0% - 100%) AkXD2 02/01/07 04:13 Uncert: +/-0.306 +140341 TPU: +/-0.306 +/-0.341 QC1201270198 LCS

'ritium 6.39 6.14 pCi/g 96 (75%-125%) 02/01/07 05:03 Uncert: +/-0.5 10 TPU: +/-0.5 13 QC1201270195 MB

'ritium U 0.0228 pCi/g 02/01/07 03:40 Uncert: +/-0.133 TPU: +/-0. 133 QC1201270197 179837001 MIS

'ritium 6.48 U 0.452 5.16 pCi/g 80 (75%-125%) 02/01/07 04:46 Uncert: +/-0.306 +/-0.8 13 TPIJ: +/-0.306 +/-0.8 14 N4otes:

rhe Qualifiers in this report are defined as follows:

• 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 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 GCIMS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more 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 Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier 83

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Vorkorder: 179837 Page 9 of 9 armname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time x

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 I/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more.

• Indicates analyte is a surrogate compound.

The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the ample 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.

84

15KV WEST SIDE GW TREATMENT FACILITY (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 93 12-0008 RELEASE RECORD ATTACHMENT 4 (DQA RESULTS)

Revision 0

15KV WEST SIDE GW TREATMENT FACILITY (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 93 12-0008 RELEASE RECORD ATTACHMENT 4A (PRELIMINARY DATA REVIEW)

Revision 0

11 5kV WEST SIDE GW TREATMENT FACILITY SURVEY UNIT 9312-0008 RELEASE RECORD Attachment 4 Survey Unit: 93 12-0008 Area Description 11 5kV West Side GW Treatment Facility Classification Survey Media Surface Soils Type of Survey Final Status Survey Number of Measurements 15 Static, 3 Investigative STATISTICS on TOTAL STATISTICS on NON-POPULATION PARAMETRIC POPULATION Cs-I 37 Co-60 Sr-90 Cs-I 37 Co-60 Sr-90 DCGLOp (pCilg): 4.75E+00 2.29E+00 9.30E-01 DCGLOP (pCilg): 4.75E+00 2.29E+00 9.30E-01 Minimum Value: -3.1 7E-03 -2.21 E-02 -5.OOE-03 Minimum Value: -3.17E-03 -2.21 E-02 -5.OOE-03 Maximum Value: 8.38E-02 7.91 E-02 2.96E-01 Maximum Value: 8.38E-02 6.56E-03 2.96E-01 Mean: 2.30E-02 -1.01 E-03 2.76E-02 Mean: 1.91 E-02 -4.45E-03 2.95E-02 Median: 2.08E-02 -4.40E-03 8.30E-03 Median: 1.70E-02 -3.88E-03 5.33E-03 Standard Deviation: 2.09E-02 2.09E-02 6.67E-02 Standard Deviation: 2.13E-02 8.32E-03 7.50E-02 Cs-I 37 Co-6O Sr-90 Sample ID GSCodnts Result Jc MDA Idetfe Result 2c (MDA Idniid Result 2c MDA Fraction North East (~~) _____ (pcilg) ] _____ (pCiig) J_____ (pcilg) (pCilg) (pcilg) of DCGL 9312-0008-001 F 236475,90 668844.00 1.88E-02 0.024 2.37E-02 -7.OOE 03 0.022 i3.49E-02 j2.35E-02 0.024 3.97E-02 0.026 9312-0008-002F 236475.90 668877.34 1.70E-02 0.017 3.O5E-02 + -3.64E-03 0.016 2.58E-02 2.96E-01 0.050 4.05E-02 + 0.320 9312-0008-003F 236447,02 668827.33 1 .27E-02 0.030 5.30E-02 4.05E-03 0.036 5 9 23.08E-02 0.025 3.96E-02 + 0.038 9312-0008-004F 23644702 668860.67 0.OOE+00 0.032 3.20E-02 1.04E-03 0.019 3.14E-02 -4.36E-03 0.017 3.40E-02 -0.004 9312-0008-005F 236447,02 668894.01 2.10E-03 i0.015 12.59E-02 -6.92E-03: 0.017 2.28E-02 5.33E-03 0.024 4.31 E-02 0.003 9312-0008-006F 236447.02 668927.35 5.37E-03 0.019 3.28E-02 -1.30E-02: 0.019 2.81 E-02 3.56E-03 0.021 3.91lE-02 -0.00 1 9312-0008-007F 236418.15 668810.66 2.14E-02 0.020 13.67E-02 + -1.30E-02: 0.018 2.73E-02 3.95E-03 0.023 4.27E-02 0.003 9312-0008-008F 236418,15 668844.00 2.1OE-02 0.027 2.67E-02 1.09E-03 0.021 3.61 E-02 i ~ 1.44E-02 i~0.021 3.63E-02 0.020 9312-0008-009F 236418.15 668877.34 8.38E-02 0.015 2.67E-02 + 5.17E-03 0.014 f2.40E-02 -. 0-31002 42E0 0.0 18 9312-0008-01OF 23481 j690.68 3.4E0 024 31 3E-02 + -3.88E-03 0.0211 3.38E-02 I -5.OOE-031 0.019 3.76E-02 0.000 REVISION 0 Page Pg I off 2

I J5kV WEST SIDE OW TREATMENT FACILITY SURVEY UNIT 93 12-0008 RELEASE RECORD Attachment 4 ICs-I G PS Coordinates1 37 Co-60 Sr-90 Sample ID IResul MDA Idniid Result 2a MDA Result 2 MDA Fraction North I

Eas (pIg _____

a (pPc)(ilg pig detfid2a Identified pjg _____ JP~g 2aIdentified (pilg) of DCGL 92-0008-011iF 236389.28 668827.33 3.45E-02 0.031 1 3.43E-02 + -4.40E-031 0.022 12.21 E-02 j4.26E_03 018 3.38E-02 0.010 9312-0008-012F 236389.28 668860.67 -3.17E-03: 0.021 3.57E-02 6.56E-03 0.019 13.26E-02 13E01.0.023 3.98E-02 0.017 9312-0008-013F 236389.28 668894.01 2.20E-02 0.027 5.04E-02 -2.21 E-02! 0.028 4.10E-02 9.52E-03 0.017 3.09E-02 0.005 9312-0008-014F 236360.40 668844.00 1.40E-02 0.022 3.97E-02 -1.40E-02: 0.031 3.99E-02 3.92E-03 0.023 4.25E-02 0.001 9312-0008-015F 236360.40 668877.34 3.34E-03 0.026 4.45E-02 3.34E-03 0.026 4.45E-02 4.41 E-02 0.026 3.95E-02 + 0.050 9312-0008-OO3FS 236447.02 668827.33 2.08E-02 0.018 3.06E-02 + -1.19E-02 0.019 2.87E-02 8.30E-03 0.023 4.22E-02 0.008 9312-0008-016-1 236358.70 668868.21 4.91 E-02 0.034 3.61 E02 + 7.91 E-02 0.045 3.55E-02 + 4.99E-02 0.025 3.66E-02 + 0.099 9312-0008-017-1 236354.14 668865.13 4.21 E-02 0.031 4.10E-02 + -8.17E-03 0.024 3.95E-02 1.89E-02 0.024 4.~05E-02 0.026 9312-0008-018-I 236430.44 668940.73 3.86E-02 0.046 6.19E-02 i -1.15E-02 0.035 5.30E-02 4.54E-03 0.021 13.97E-02 0.008 REVISION 0Pae2o2 Page 2 of 2

15KV WEST SIDE GW TREATMENT FACILITY (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 93 12-0008 RELEASE RECORD ATTACHMENT 4B (GRAPHICAL REPRESENTATION OF DATA)

Revision 0

FREQU ENCY PLOT FOR CESLU M-13 7 Survey Unit: 93 12-0008 Survey Unit Name: 11 5kV West Side GW Treatment Facility Mean: 1.91 E-02 pCi/g Frequency Plot For Cs-I 37 10 8-S6-2-

0-1.13E-02 2.58E-02 4.03E-02 5.48E-02 6.93E-02 8.38E-02 Upper End Value (pCilg)

Upper End Observation Observation Value Frequency Frequency 1.13E-02 5 33%

2.58E-02 7 47%

4.03 E-02 2 13%

5.48E-02 0 0%

6.93 E-02 0 0%

8.38E-02 1 7%

Total: 15 100%

1 of 1

QUANTILE PLOT FOR CESIUM-137 Survey Unit: 93 12-0008 Survey Unit Name: I1I5kV West Side GW Treatment Facility Mean: 1.91 E-02 pCi/g Quantile Plot For Cs-I 37 9.OOE-02 8.00E-02 I I lI1 7.00E-02 C.,

6.00E-02 C

5.OOE-02 4.OOE-02 C

N 0 3.00E-02 0 U 2.OOE-02 -

- U I

1.00E-02 0.OOE+00 ~ ii I 0 20 40 60 80 100 Percentage Cs- 137 Rank Percentage

-3.1713-03 I 3.3%

0.OOE+/-00 2 10.0%

2.l1OE-03 3 16.7%

3.34E-03 .4 23.3%

5.37E-03 5 30.0%

1.27E-02 6 36.7%

1.40E-02 7 43.3%

1.70E-02 8 50.0%

1.88E-02 9 56.7%

2.I1OE-02 10 63.3%

2.14E-02 11 70.0%

2.20E-02 12 76.7%

3.4 1E-02 13 83.3%

3.45E-02 14 90.0%

8.38E-02 15 96.7%

Reviewed by/Date

FREQUENCY PLOT FOR STRONTIUM-90 Survey Unit: 9312-0008 Survey Unit Name: 115kV West Side GW Treatment Facility Mean: 2.95E-02 pCi/g Frequency Plot For Sr-90 16 14

)12 S10 S8-

?6-L.L 4

2-0 4.52E-02 9.53E-02 1.46E-01 1.96E-01 2.46E-01 2.96E-01 Upper End Value (pCi/g)

Upper End Observation Observation Value Frequency Frequency 4.52E-02 14 93%

9.53E-02 0 0%

1.46E-01I 0 0%

1.96E-0 1 0 0%

2.46E-0 1 0 0%

2.96E-0 1 1 7%

Total: 15 100%

ODVG0,Tb(OVJAV ZlI2-)JO7 Sub itted bylD tC-Q> Z -;7 Reviewed by/Date / 1 o1 of

QUANTILE PLOT FOR STRONTIUM-90 Survey Unit: 9312-0008 Survey Unit Name: I115kV West Side GW Treatment Facility Mean: 2.9513-02 pCi/g Quantile Plot For Sr-90 3.50E-01 3.00E-01 - If

~i2.50E-01 S2.OOE-O1 0

• lOQE-Ol U

0.00E+00

-5.OOE-02

-u - ~ -- U- -U---- ~:

60 I i80 100 0 20 20 40 60 80 100 Percentage Sr-90 Rank Percentage

-5 .OOE-03 1 3.3%

-4.36E-03 2 10.0%

-1.70E-03 3 16.7%

3.56E-03 .4 23.3%

3 .92E-03 5 30.0%

3.95E-03 6 36.7%

4.26E-03 7 43.3%

5.33E-03 8 50.0%

9.52E-03 9 56.7%

1.38E-02 10 63.3%

1.44E-02 11 70.0%

2.35E-02 12 76.7%

3.08E-02 13 83.3%

4.41 E-02 14 90.0%

2.9613-0 1 15 96.7%

15KV WEST SIDE GW TREATMENT FACILITY (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 93 12-0008 RELEASE RECORD ATTACHMENT 4C (SIGN TEST)

Revision 0

Connecticut Yankee Decommissioning Project GPP-GGGR-R5121-OO1 Attachment B, Health Physics Procedure Rev.CY-OO1 MAJOR Sign Test Calculation Sheet for Multiple Radionuclides Survey Area Number: 9312 Survey Unit Number: 0008 WPIR #: N/A Survey Area Name: 115kV West Side Classification: 1 TYPE I (aerror): 0.05 'N:16 GW Treatment Facility________

Radionuclides: 1 't Radionuclide 2rdRadionuclide 3r Radionuclide 4 1h Radionuclide Cs-137 Co-60 Sr-90 DCGL: 4.75E+00 2.29E+00 9.30E-01 Results 1st Results 2 nd Results 3 rd Results 4 th Weighted Sum 1-_We Sign Radionuclide Radionuclide Radionuclide Radionuclide (WS)

(pCilg) (pCilg) (pCilg) (pCi/g) 1.88E-02 -7.OOE-03 2.35E-02 0.03 0.97 +1 1.70E-02 -3.64E-03 2.96E-01 0.32 0.68 +1 1.27E-02 4.05E-03 3.08E-02 _______0.04 0.96 +1 0.OOE+00 1.04E-03 -4.36E-03 _______0.00 1.00 +1 2.1 OE-03 -6.92E-03 5.33E-03 _______0.00 1.00 +1 5.37E-03 -1.30E-02 3.56E-03 0.00 1.00 +1 2.14E-02 -1.30E-02 3.95E-03 _______0.00 1.00 +1 2.1OE-02 1.09E-03 1.44E-02 0.02 0.98 +1 8.38E-02 5.17E-03 -1.70E-03 0.02 0.98 +1 3.41 E-02 -3.88E-03 -5.OOE-03 _______0.00 1.00 +1 3.45E-02 -4.40E-03 4.26E-03 ________0.01 0.99 +1

-3.17E-03 6.56E-03 1.38E-02 _______0.02 0.98 +1 2.20E-02 -2.21 E-02 9.52E-03 ________0.01 0.99 +1 1.40E-02 -1.40E-02 3.92E-03 _______0.00 1.00 +1 3.34E-03 3.34E-03 4.41 E-02 ________0.05 0.95 +1 Number of positive differences (S+)i 15 Critical Value 11 Survey Unit Meets the Acceptance Criteria Performed by: David Wojtkowiak '.. Date: 2/23/2007 Independent Review by: Date:

}

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15KV WEST SIDE GW TREATMENT FACILITY (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 9312-0008 RELEASE RECORD ATTACHMENT 4D (QC SPLIT RESULTS)

Revision 0

Health Physics Procedure 24265-000-GPP-GGGR-R5124-000-Rev.CY-000 Attachment A Health Physics Procedure 24265-000-GPP-GGGR-R5 I 24-000-Rev.CY-000 Attachment A Split Sample Assessment Form Survey Area #I: 9312 Survey Unit # 0008 Survey Unit Name: I I5kV West Side GW Treatment Facility Sample Plan or WPIR#: N/A ISML#: 9312-0008-003 Sample

Description:

Comparison of split samples collected from sample measurement location #3 and analyzed using gamma spectroscopy by off-site Vendor Laboratory. The standard sample was 9312-0008-003F, the comparison sample was 931 2-0008-003FS.

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

K-40 9.77E+00 0.525 19 0.75 - 1.33 9.67E+00 0.453 0.99 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 93 12-0008-003F to assess split samples.

evaluate in accordance with procedure. Evaluation using the reported results for K-40 resulted in acceptable agreement between the field- Resolution Agreement Range split results at these locations.. Since K-40 was found to be present at an 4-7 0.5 - 2.0 8- 15 0.6 -1.66 acceptable level of agreement, no further action is warranted. 16 -50 0.75 - 1.33 51 -200 0.80 - L 25

>200 0.85 - 1.18

)ate:

j I

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15KV WEST SIDE GW TREATMENT FACILITY (FORMER RADIOLOGICALLY CONTROLLED AREA)

SURVEY UNIT 93 12-0008 RELEASE RECORD ATTACHMENT 4E (COMPASS POWER CURVE)

Revision 0

DQA Surface Soil Report Assessment Summary Site: 9312 Planner(s): Wojo Survey Unit Name. 9312-0008 Report Number: 1 Survey Unit Samples& 15 Reference Area Samples; 0 Test Performed: Sign Test Result: Not Performed Judgmental Samples 0 EMVC Result: Not Performed Assessment

Conclusion:

Reject Null Hypothesis (Survey Unit PASSES)

Retrospective Power Curve 1

ZflEZI _-

_- -I_

U 0,9 --- I-- -___

= 0.8 hEll _ __

I-0.7

-ZuLu __

__- ~~~1~~.

0.65 (f

0.5 0.4 0.3 - I 02 L - I_

0.1 0

00 0.2 04 0.6 0,8 1'0 12 Unity Rude Sum-of Ratios, inciluing background

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

- LBGR - - Estimated Power DCGL - -- Retrospective Power COMPASS 0i.0.0 22/07Pg 2/27/2007 Page 1