ML071730488

Final Status Survey (FSS) Final Report - Phase VII - Chapter 14 of 19 - Appendix A13, Survey Unit Release Record 9313-0000, Central Site Grounds

ML071730488
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	03/16/2007
From:	Mccarthy J Connecticut Yankee Atomic Power Co
To:	NRC/FSME
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Download: ML071730488 (171)

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Final Status Survey Final Report Phase VII Appendix A13 Survey Unit Release Record 9313-0000, Central Site Grounds May 2007 CYAPCO FINAL STATUS SURVEY RELEASE RECORD CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 Ji~4 7~Prepared By: Reviewed By: Approved By: FSS Engineer/FSS Engineer Date: 31/7/o1 Date: "* -/' -07 Date: Telhnical Support Manager Revision 0 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD TABLE OF CONTENTS 1. SURVEY UNIT DESCRIPTION

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

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

5 4. SU RV EY D ESIGN .............................................................................

8 5. SURVEY IMPLEMENTATION

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11 6. SURV EY RESU LTS ........................................................................

12 7. QUALITY CONTROL ....................................................................

16 8. INVESTIGATIONS AND RESULTS ..............................................

17 9. REMEDIATION AND RESULTS ....................................................

18 10. CHANGES FROM THE FINAL STATUS SURVEY PLAN ...... 18 11. DATA QUALITY ASSESSMENT (DQA) .......................................

19 12. A N O M A LIES ..................................................................................

20 13. CON CLU SION ................................................................................

20 14. A TTA CH M EN TS .............................................................................

20 14.1 Attachment 1 -Figures (7 pages including cover)14.2 Attachment 2 -Scan Results (6 pages including cover)14.3 Attachment 3 -Laboratory Data (124 pages including cover)14.4 Attachment 4 -DQA Results (14 pages including covers)TOTAL 171 Revision 0 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD SURVEY UNIT DESCRIPTION Survey Unit 9313-0000 (Central Site Grounds) is designated as Final Status Survey (FSS) Class 2 and consists of approximately eight thousand two hundred sixty-six square meters (8,266 M 2) of open land and is located approximately one thousand one hundred fifteen feet (1,115 ft) 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 Area 9514 to the north (called north as oriented with the north to south flow of the Connecticut River), land Survey Area 9302 to the west, land Survey Area 9306 and land Survey Area 9312 to the south, and land Survey Area 9527 to the east. As a result of demolition activities the area topography is mostly flat and de-vegetated.

The survey unit has a shallow drainage ditch along the East Mountainside running from south to north.The reference coordinates associated with this survey unit are E006 through E014 by S060 through S066 (refer to "HNP License Termination Plan" (LTP) Section 5.4.4). The reference coordinates provide the maximum dimensions of a rectangle containing this survey unit. Some areas contained in this rectangle may not be part of this survey unit. The boundary of the survey unit was defined using a Global Positioning System (GPS) based on the Connecticut State Plane System North American Datum (NAD) 1927.2. CLASSIFICATION BASIS The survey unit was classified in accordance with Procedure RPM 5.1-10, "Survey Unit Classification.

" The "Classification Basis Summary" conducted for Survey Unit 9313-0000 consisted of: a) A review of the 1OCFR50.75 (g) (1) database, b) A review of the "Initial Characterization Report" and the "Historical Site Assessment Supplement, " c) Historic and current survey records review, d) Visual inspections and a "walkdown." A review of the "Initial and Supplemental Characterization Reports " as well as the previous "Classification Basis Summaries" was performed.

The source documents, the "Connecticut Yankee Haddam Neck Characterization Report" and "Initial Classification for Survey Areas at Connecticut Yankee", were incorporated by reference in LTP, Revision 0.A review of the historical documentation indicated that operational events may have impacted Survey Unit 9313-0000.

Operational events were considered to be releases of radioactive material and spills and leakage from contaminated systems. These events would have had the most impact on the radiological condition of the survey unit.Revision 0 3 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD Two events relating to this survey unit are summarized as follows;* Adverse Condition Report (ACR) 95-0250 reported that fixed contamination was found outside of the Radiologically Controlled Area (RCA) during routine annual survey of the non-RCA yard. The follow-up investigation reported a total of thirteen (13) particles from various locations.

During subsequent surveys contamination was identified, and removed by tape, from Survey Unit 9313-0000 in the area between the RCA Access Point and RCA fence. Gamma spectroscopy analysis reported Co-60 at 7.4E-02 uCi." Health Physics (HP) memo 01-022, "Origin of Fill Material Identified at Offsite Locations," has associated soil from Survey Unit 9313-0000 with an off-site property.

The material, approximately twenty cubic yards (20 yd 3), contained low-levels of plant-related radioactivity.

The material was collected and returned to the Site and is currently located in Survey Area 9538, which is situated eight hundred and twenty-five feet (825 ft) southeast of the Independent Spent Fuel Storage Installation (ISFSI)Demolition of structures in this survey unit began in 2006. Systems and components located inside this survey unit were removed and building structural surfaces were surveyed to ensure contamination levels were acceptable for controlled demolition.

Confirmatory radiological surveys were performed throughout the demolition process.Removal of concrete foundations and footings in this survey unit also began in 2006.Radiological assessment surveys of soil were performed throughout the demolition and removal of concrete.

All excavations were backfilled with clean fill following the performance of the radiological assessments.

No above grade structures currently reside within Survey Unit 9313-0000.

Radiological assessment data for Survey Unit 9313-0000 was used to develop the FSS plan for the survey unit. A review of the radiological assessment data shows that Cs-137 was the only radionuclide of concern. Eighteen (18) samples were evaluated overall. The statistical quantities (mean, median and standard deviation) for Cs-137 are provided in Table 1.Revision 0 4 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD Table 1 -Basic Statistical Quantities for Cs-137 from the Radiological Assessment Data Quantity Cs-137 (pCi/g)Minimum Value: -1.87E-02 Maximum Value: 1.24E-01 Mean: 3.25E-02 Median: 1.06E-02 Standard Deviation:

4.58E-02 The FSS Engineer performed a visual inspection and walk-down during December 2006 to assess the physical condition of the survey unit and identify potentially hazardous conditions.

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

The low levels of radioactive material identified in the survey unit and the use of clean fill to backfill excavations justified a final survey unit classification of Class 2.3. 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, "Preparation of Final Status Survey Plan," and the "Multi-Agency Radiation Survey and Site Investigation Manual" (MARSSIM).

A summary of the main features of the DQO process are provided herein.The DQO process incorporated hypothesis testing and probabilistic sampling distributions to control decision errors during data analysis.

Hypothesis testing is a process based on the scientific method that compares a baseline condition to an alternate condition.

The baseline condition is technically known as the null hypothesis.

Hypothesis testing rests on the premise that the null hypothesis is true and that sufficient evidence must be provided for rejection.

In designing the survey plan, the underlying assumption, or null hypothesis was that residual activity in the survey unit exceeded the release criteria.

Rejection of the null hypothesis would indicate that residual activity within the survey unit does not exceed the release criteria.The primary objective of the FSS plan was to demonstrate that the level of residual radioactivity in Survey Unit 9313-0000 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).Revision 0 5 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD A fundamental precursor to survey design is to establish a relationship between the release criteria and some measurable quantity.

This is done through the development of DCGLs. The DCGLs represent average levels of radioactivity above background levels and are presented in terms of surface or mass activity concentrations.

Chapter 6 of the LTP describes in detail the modeling used to develop the DCGLs for soil (called Base Case Soil DCGL), existing groundwater radioactivity and future groundwater radioactivity that will be contributed by building basements and footings.The DCGLs presented in Chapter 6 of the LTP were developed for exposures from three (3) components, that is, residual radioactivity in soil, existing groundwater radioactivity, and future groundwater radioactivity from the burial of concrete foundations or footings from site buildings containing residual radioactivity.

Equation 1 shows the mathematical relationship between the three (3) components and the total dose.Equation 1 HTotal =Hsoi + HExistingGW

+ HFutureGW The total dose under the LTP criteria is twenty-five (25) mrem/yr Total Effective Dose Equivalent (TEDE) from all three (3) components.

The allowable total dose under the Connecticut Department of Environmental Protection (CTDEP)radiological remediation standard for CY is nineteen (19) mrem/yr TEDE. To satisfy both the LTP and CY CTDEP criteria, the dose from soil must be reduced when using the existing and future groundwater dose values discussed above.This survey area is affected by existing groundwater (reference CY memo ISC 06-024). Therefore, the dose contribution from existing groundwater is bounded by two (2) mrem/yr TEDE.This survey unit is considered impacted by future groundwater radioactive contamination, as there are underground foundations containing residual radioactive material within the groundwater saturated zone in the area (reference CY memo ISC 06-024). The dose contribution from future groundwater, the third dose component, is bounded by two (2) mremlyr TEDE.Equation 2 19 mrem/yrTotal

= 15 mrem/yrsoil

+ 2 mremnyrExisting GW+ 2 mrem/yrFutureGW The allowable dose for soil in this survey unit is fifteen (15) mrem/yr TEDE as shown by Equation 2 above. The concentration of residual radioactivity resulting in fifteen (15) mrem/yr TEDE is designated as the Operational DCGL (DCGLop), and has been established for the radionuclides of concern as provided in Table 2.Revision 0 6 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD Table 2 -Radionuclide Specific Base Case Soil DCGLs, Operational DCGLs and Required Minimum Detectable Concentrations (MDCs)Radionuclide (1) 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-14 5.66E+00 3.40E+00 2.26E-01 Mn-54 1.74E+01 1.04E+01 6.96E-01 Fe-55 2.74E+04 1.64E+04 1.10E+03 Co-60 3.81E+00 2.29E+00 1.52E-01 Ni-63 7.23E+02 4.34E+02 2.89E+O1 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+O1 7.56E+00 5.04E-01 Ag- 108m 7.14E+00 4.28E+00 2.86E-01 Cs- 134 4.67E+00 2.80E+00 1.87E-01 Cs-137 7.91E+00 4.75E+00 3.16E-01 Eu- 152 1.01E+01 6.06E+00 4.04E-01 Eu- 154 9.29E+00 5.57E+00 3.72E-01 Eu-155 3.92E+02 2.35E+02 1.57E+01 Pu-238 2.96E+01 1.78E+01 1.18E+00 Pu-239/240 2.67E+0 1 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+01 1.16E+00 (1)(2)(3)(4)(5)Bold indicates those radionuclides considered Hard to Detect (HTD)The Base Case Soil DCGL(s) are specified by the LTP in Chapter 6 and are equivalent to twenty-five (25) mrem/yr TEDE The Operational DCGL is equivalent to achieving fifteen (15) mrem/yr TEDE The required MDC is equivalent to achieving one (1) mrem/yr TEDE Americium-241 can be analyzed by gamma and alpha spectroscopy and is considered to be Easy to Detect (ETD). The preferred result is the alpha spectroscopy's when both analyses are performed Revision 0 7 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 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 9313-0000 for FSS.Cs-137 was the only gamma emitting radionuclides reported in concentrations with the potential for meeting the release criteria.

The radiological assessment 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 to be reported as actual calculated results. Results reported as less than Minimum Detectable Concentration (MDC) were not accepted for FSS. Sample report summaries were to include unique sample identification, analytical method, radionuclide, result, and uncertainty to two (2) standard deviations, laboratory data qualifiers, units, and the required and observed MDC.4. SURVEY DESIGN The level of effort associated with planning a survey is based on the complexity of the survey and nature of the hazards. Guidance for preparing FSS plans is provided in Procedure RPM 5.1-11, "Preparation of Final Status Survey Plans". The 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 would be the radionuclide of concern in Survey Unit 9313-0000 (refer to Section 3). Hard-to-Detect radionuclides were not considered present in significant quantities (i.e., greater than 5% individually or 10%as an aggregate) based on the use of clean back fill for the excavations and the very low level concentrations for Cs-137. Radionuclides that are positively identified in concentrations greater than the screening criteria during the performance of this FSS would be evaluated to ensure adequate survey design.Surrogate DCGLs were not required for this survey unit via screening under LTP Section 5.4.7.2, "Gross Activity DCGLs". Radionuclide screening or de-selection is a process where an individual radionuclide or aggregates may be considered insignificant and eliminated from the FSS. The criteria for de-selection are concentrations less than 5% for individual radionuclides and less than 10% for aggregates.

The Elevated Measurement Comparison (EMC) did not apply to this survey unit since it is a Class 2 area and discrete, elevated areas of contamination were not expected.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 Revision 0 8 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD Procedure RPM 5.1-11 to 4.66 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 (1OCFR20, 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 radiological assessment 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 2 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 3.[Table 3 -Sample Measurement Locations with Associated GPS Coordinates Designation Northing Easting 9313-0000-OOIF 236946.92 668507.66 9313-0000-002F 236875.30 668466.31 9313-0000-003F 236875.30 668549.01 9313-0000-004F 236803.69 668424.97 9313-0000-005F 236803.69 668507.66 9313-0000-006F 236732.07 668383.62 9313-0000-007F 236732.07 668466.31 9313-0000-008F 236660.45 668259.57 9313-0000-009F 236660.45 668342.27 9313-0000-01OF 236660.45 668424.97 9313-0000-011F 236588.83 668300.92 Revision 0 9 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD Table 3 -Sample Measurement Locations with Associated GPS Coordinates Designation Northing Easting 9313-0000-012F 236588.83 668383.62 9313-0000-013F 236588.83 668466.31 9313-0000-014F 236517.22 668424.97 9313-0000-015F 236517.22 668507.66 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 2.The LTP requires a minimum of 5% of the samples taken for non-parametric statistical testing be selected for Quality Control (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 two (2)soil samples for "split sample" analysis by the off-site laboratory.

These locations were selected randomly using the Microsoft Excel "RANDBETWEEN" function.The LTP specifies a required scanning coverage of 10% to 100% for outdoor Class 2 areas. The fraction of scanning coverage was determined during the DQO process with the total amount and location(s) based on the likelihood of finding elevated activity during FSS. Based on the historical site assessment and the radiological assessment data available it was determined that scanning was required in two (2)separate areas. The two (2) areas designated for scanning covered about 17% of the survey unit. The scan areas were selected based on the events described by ACR 95-0250 and HP 01-022.For this Class 2 survey unit, the "Investigation Level" for area scanning and soil sample measurement results are those levels specified in LTP, Table 5-8. Table 4 provides a synopsis of the survey design.Revision 0 10 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD Table 4 -Synopsis of the Survey Design Feature Design Criteria Basis Survey Unit Land Area 8,266 m 2 Based on AutoCAD-LT Type 1 and Type 2 errors were 15 0.05, sigma was 0.046 pCi/g, the Number of Measurements LBGR was set at 4.66 pCi/g to (15 systematic grid) achieve a Relative Shift in the range of 1 and 3 Grid Spacing 25.2 m Based on triangular grid Administratively set to achieve Operational DCGL 4.75 pCi/g Cs-137 fifteen (15) mrem/yr TEDE (1)The Operational DCGL meets the Soil Investigation Level 4.75 pCi/g Cs-137 LTP criteria for a Class 2 survey unit Scan Survey Area Approximately The LTP requires > 10% area Coverage 17% of the area coverage for Class 2 survey units Detectable over Administratively set to achieve 15 Scan Investigation Level background mrem/yr TEDE (1)(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 the FSS plan. The FSS plan included a job safety analysis and daily pre-job briefings were conducted to discuss the expectations for job performance and the safety aspects for performing survey and sampling.

The "Daily Survey Journal" was used to document field activities and other information pertaining to the FSS.Two (2) scan areas were established that constituted approximately 17% of the surface area of Survey Unit 9313-0000.

Grid lines, one (1) meter wide, were painted or otherwise marked on the ground of the scan areas. Background was determined using an Eberline E-600 with a SPA-3 sodium iodide detector.

Background ranged from 7,200 counts per minute (cpm) up to 13,300 cpm.The scan areas were 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 17% of the survey unit was scanned.Revision 0 11 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD Measurement locations were identified in North American Datum (NAD) 1927 coordinates and were located using GPS; 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.Twenty-five (25) surface soil samples were collected and packaged in accordance with Procedure RPM 5.1-3, "Collection of Sample Media for Final Status Survey" and FSS design. The total number of samples included the original fifteen (15)samples, two (2) field splits and eight (8) additional investigation samples. 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 (9313-0000-002F and 9313-0000-015F) were randomly selected for HTD radionuclide analysis.The implementation of survey specific QC measures included two (2) samples (9313-0000-008F and 9313-0000-014F) for "field split sample" analysis.6. SURVEY RESULTS All field survey activities were conducted between February 1, 2007 and February 12, 2007.The sample locations identified in the FSS plan were scanned over approximately a one (1) meter radius for elevated radiation levels. Table 5 provides an overview of the scan results for sample measurement locations.

Scan results are provided in Attachment 2.Table 5 -Scan Results for Sample Measurement Locations Sample Highest Logged Action Level (1)Measurement Reading > Action Level Location (kcpm) (kcpm)1 7.06 8.59 NO 2 8.79 9.09 NO 3 9.23 11.0 NO 4 8.25 10.0 NO 5 8.70 10.0 NO 6 8.56 9.19 NO 7 9.03 10.1 NO 8 8.07 9.45 NO 9 8.15 9.21 NO Revision 0 12 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD 10 8.31 10.0 NO 11 8.08 9.10 NO 12 7.18 8.19 NO 13 8.16 9.07 NO 14 7.55 8.31 NO 15 9.37 10.8 NO (1) The action level is based on a measurement above ambient background in accordance with the FSS plan The scan areas, that comprised approximately 17% 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 from February 1, 2007 through February 8, 2007.Eighty-six (86) scan strips were established in this survey unit. Several elevated measurement locations were identified during scanning.

Table 6 provides an overview of the scan area survey. Scan results are provided in Attachment 2.Table 6 -Scan Area Results Highest Action Logged Level () Elevated Reading Investigation Scan Strips Reading Identification (2) Sample (kcpm) (kcpm)9313-00-ER-01-01-1 9313-0000-021F 1 thru 15 (3) 14.2 14.9 9513-00-ER-01-09-1 9313-0000-022F 9313-00-ER-01-13-1 (5) 9313-0000-023F 9313-00-ER-02-04-1 9313-0000-016F 1 thru 24 (4) 13.0 12.7 9313-00-ER-02-07-1 (5) 9313-0000-017F 9313-00-ER-02-22-1 9313-0000-018F 25 thru 53 12.3 11.7 9313-00-ER-02-42-1 9313-0000-019F 54 thru 71 9.53 9.35 9313-00-ER-02-54-1 9313-0000-020F (1) The action level is based on a measurement above ambient background in accordance with the FSS plan (2) ER is an abbreviation associated with the barcodes used in the field where ER stands for Elevated Reading (3) Scan Area 1 (4) Scan Area 2 (5) These locations were not above the action level, but were flagged and sampled at the discretion of the FSS Supervisor Revision 0 13 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD 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 two (2) field splits and the eight (8) 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 plant-related radionuclide reported in any appreciable concentration.

Cs-137 was identified in eight (8) of the fifteen (15) samples collected for non-parametric statistical testing and in five (5) of the eight (8) investigation samples.Co-60 was identified in two (2) of the fifteen (15) samples collected for non-parametric statistical testing and in two (2) of the eight (8) investigation samples.Co-60 exceeded the de-selection criteria of 5% of the DCGL in one of the investigation samples; therefore, all the reported results for Co-60 were included in the evaluation of sample data. The mean of the gamma spectroscopic analysis results for the sample population indicated that Cs-137 was present at levels slightly lower than expected environmental levels for Cs-137 within the vicinity of the HNP as presented in the Health Physics Technical Support Document (TSD) BCY-HP-0063.

A summary of the fifteen (15) samples collected for non-parametric statistical testing results is provided in Table 7.Table 7 -Summary of Gamma Spectroscopy Results for Surface Soil Samples Comprising the Statistical Sample Population Cs-137 Co-60 Sample Number pCi/g pCi/g 9313-0000-OO1F 1.33E-01 4.11E-03 9313-0000-002F 1.53E-02 -2.35E-03 9313-0000-003F 2.35E-02 7.11E-02 9313-0000-004F 5.97E-02 1.90E-02 9313-0000-005F 1.54E-02 -9.96E-03 9313-0000-006F

-1.09E-02 -1.1 OE-02 9313-0000-007F

-5.51E-03 4.57E-03 9313-0000-008F 1.67E-02 -2.31 E-03 9313-0000-009F

-1.37E-03 3.40E-03 9313-0000-01 OF 0.OOE+00 -9.30E-04 9313-0000-011F 2.79E-02 2.62E-03 Revision 0 14 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD Table 7 -Summary of Gamma Spectroscopy Results for Surface Soil Samples Comprising the Statistical Sample Population Cs-137 Co-60 Sample Number pCi/g pCi/g 9313-0000-012F 2.96E-02 2.24E-03 9313-0000-013F 7.21E-02 2.95E-02 9313-0000-014F 6.62E-03 1.39E-03 9313-0000-015F 5.22E-02 0.OOE+00 The off-site laboratory also processed two (2) samples for HTD analysis as required by the sample plan. The requested analyses included alpha spectroscopy, gas proportional counting, and liquid scintillation depending on the radionuclide and the measurement method. All analyses met the required MDCs.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.

No HTDs met the criteria for detection (i.e., a result greater than two (2) standard deviations uncertainty).

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, + C 2 C <+ -+ .......<1 DCGLI DCGL 2 DCGL, Where: Cn = concentration of radionuclide n and DCGLn = Operational DCGL of radionuclide n.The results of the unity rule calculation for the radionuclides of concern in the statistical sample population for Survey Unit 9313-0000 are provided in Table 8.Revision 0 15 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD Table 8 -Results of Unity Calculation for Surface Soil Samples Comprising the Statistical Sample Population(1)(2)Fraction of the Operational DCGL Sample NumberUnt Cs-137 Co-60 9313-0000-OOIF 0.028 0.002 0.030 9313-0000-002F 0.003 0.003 9313-0000-003F 0.005 0.031 0.036 9313-0000-004F 0.013 0.008 0.021 9313-0000-005F 0.003 0.003 9313-0000-006F 9313-0000-007F 0.002 0.002 9313-0000-008F 0.004 0.004 9313-0000-009F 0.000 0.001 0.001 9313-0000-01 OF 0.000 0.000 9313-0000-01IF 0.006 0.001 0.007 9313-0000-012F 0.006 0.001 0.007 9313-0000-013F 0.015 0.013 0.028 9313-0000-014F 0.001 0.001 0.002 9313-0000-015F 0.011 0.000 0.011 (1) The Operational DCGL from Table 2 is 4.75 pCi/g for Cs-137 and 2.29 pCi/g for Co-60 to achieve fifteen (15) mrem/yr TEDE respectively (2) ----- indicates that the radionuclide analysis result was reported as a negative number and was not used for the unity calculation (usage would decrease not increase the unity fraction)7. QUALITY CONTROL The off-site laboratory processed the split samples and performed gamma spectroscopy analysis.

Two (2) sample locations were selected for analysis, which exceeds the 5% minimum required by the LTP. The data were evaluated using United States Nuclear Regulatory Commission (USNRC) acceptance criteria specified in Inspection Procedure 84750 as detailed in Procedure RPM 5.1-24, "Split Sample Assessment for Final Status Survey ".Cs-137 was not detected in sufficient quantity in the both the field split results to evaluate in accordance with procedure (an agreement range could not be determined).

Evaluation using the reported results for naturally occurring K-40 resulted in acceptable agreement between the field-split results at this location.Revision 0 16 CENTRAL SITE GROUNDS SURVEY UNIT 93 13-0000 RELEASE RECORD 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 Eight (8) investigative surface soil samples were collected from scan areas exhibiting elevated scan readings.

These confirmatory soil samples were analyzed by gamma spectroscopy in accordance with the DQOs used during the survey design.Investigative sample designations are listed with the GPS coordinates in Table 9.[ Table 9 -Investigative Sample Designations with Associated GPS Coordinates Designation Northing Easting 9313-0000-016F 236555.45 668530.98 9313-0000-017F 236557.59 668521.54 9313-0000-018F 236601.04 668509.03 9313-0000-019F 236614.80 668498.17 9313-0000-020F 236675.58 668476.78 9313-0000-021F 236912.63 668548.87 9313-0000-022F 236918.25 668559.03 93 13-0000-023F 236924.26 668570.48 The samples are denoted as shown in Table 9, with the sample results shown in Table 10.Revision 0 1 17 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD Table 10 -Investigation Sample Results (1)(2)Fraction of the Operational DCGL Sample NumberUnt Cs-137 Co-60 9313-0000-016 0.003 0.009 0.012 9313-0000-017 0.008 0.011 0.019 9313-0000-018 0.011 0.000 0.011 9313-0000-019 0.019 0.011 0.030 9313-0000-020 0.018 0.018 9313-0000-021 0.002 0.001 0.003 9313-0000-022 0.007 0.007 9313-0000-023 0.859 0.081 0.940 (1) The Operational DCGL from Table 2 is 4.75 pCi/g for Cs- 137 and 2.29 pCi/g for Co-60 to achieve fifteen (15) mrem/yr TEDE respectively (2) ----- indicates that the radionuclide analysis result was reported as a negative number and was not used for the unity calculation (usage would decrease not increase the unity fraction)All samples results were less than the Operational DCGL for each respective radionuclide and less than the unity value of one (1) when combined.

HNP requested Sr-90 analysis to be performed on sample 9313-0000-023, which had the highest unity fraction.

Sr-90 was considered a potential radionuclide of concern based on the characterization and radiological assessment results in nearby survey units. Sr-90 was not detected in this sample.9. REMEDIATION AND RESULTS Historically, no radiological remedial action as described by MARSSIM Section 5.4 was performed in this survey unit prior to or as a result of the FSS. 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.Revision 0 18 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD 11. DATA QUALITY ASSESSMENT (DQA)The DQO sample design and data were reviewed in accordance with Procedure RPM 5.1-23, "Data Quality Assessment, " for completeness and consistency.

The sampling design had adequate power as indicated by the Retrospective Power Curve. The Sign Test was performed on the data and compared to the original assumptions of the DQOs. The evaluation of the Sign Test results demonstrates that the survey unit passes the unrestricted release criteria, thus, the null hypothesis is rejected.Documentation was complete and legible. Surveys and sample collection were consistent with the DQOs and were sufficient to ensure that the survey unit was properly designated as Class 2.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 11.Table 11 -Basic Statistical Quantities for Cs-137 and Co-60 from the Final Status Survey Cs-137 Co-60 pCi/g pCi/g Operational DCGL: 4.75E+00 2.29E+00 Minimum Value: -1.09E-02 -1.1 OE-02 Maximum Value: 1.33E-01 7.11 E-02 Mean: 2.89E-02 7.43E-03 Median: 1.67E-02 2.24E-03 Standard Deviation:

3.76E-02 2.03E-02 The range of the data, about four (4) standard deviations for Cs-137 and Co-60 was not a particularly large variation.

The difference between the mean and median was about 40% 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 1.69.Co-60, although included in the DQA for compliance purposes, was not considered useful for graphical representation given the limited number of positive data points to represent the distribution.

Revision 0 19 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD All data, assessments, and graphical representations are provided in Attachment 4.12. ANOMALIES No anomalies were noted.13. CONCLUSION Survey Unit 9313-0000 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 was properly designated as Class 2.The dose contribution from soil is 0.14 mrem/yr TEDE based on the average concentration of the samples used for non-parametric statistical sampling.This survey area is affected by existing groundwater (reference CY memo ISC 06-024); therefore the dose contribution from existing groundwater is bounded at two (2)mrem/yr TEDE.This survey unit is considered impacted by future groundwater radioactive contamination, as there are concrete foundations or footings from site buildings containing residual radioactive material within the groundwater saturated zone in the area (reference CY memo ISC 06-024). The dose contribution from future groundwater, the third dose component, is bounded by two (2) mrem/yr TEDE.The average total dose from residual radioactivity in this survey unit, including exposures from the three (3) components as described in Section 3, that is, residual radioactivity in soil, existing groundwater radioactivity, and future groundwater radioactivity from the burial of concrete foundations or footings from site buildings containing residual radioactivity will not exceed 4.14 mrem/yr TEDE. Therefore, Survey Unit 9313-0000 is acceptable for unrestricted release.14. ATTACHMENTS 14.1 Attachment 1 -Figures 14.2 Attachment 2 -Scan Results 14.3 Attachment 3 -Laboratory Results 14.4 Attachment 4 -DQA Results Revision 0 20 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD ATTACHMENT 1 (FIGURES)Revision 0

_rcaNNscrICLJ RIVR-r I .Connecticut Yankee Atomic Power Company Date By Figure 1 Site Map With Reference To Survey Unit 9313-0000 March 2007 J. McCarthy f K 1 LeRend 3= Ame ofguinte and np-rap 5 N)0 0 37.5 75 Feet= Sample Point 4 7 6 10 13 15 9 12 8 11 14 Connecticut Yankee Atomic Power Company Survey Unit 9313-0000 Final Status Survey Design k.133 0.024-Area of gunitv and np-rap 05 0.015 0 =Sample Point 0 37.5 75 , I Foot__1_7 Notes 0.060-o.o05 Reported Concentrations in pCi/g-0.011 (.000 0'.072L 0.052-0.001 0.030 0.017 0.024 Connecticut Yankee Atomic Power Company 9313-0000 Final Status Survey Cs-13 7 Posting Plot K~1 0.071 (~)Q)S=Sample Point 0 37.5 75 1Feet-0.010 0.019 Notes 0.005 I~~1 Reported Concentrations in pCi/g-0.011-0.001.0-30 0.000 0.003 0.002 0.001 Connecticut Yankee Atomic Power Company 9313-0000 Final Status Survey Co-60 Posting Plot I L<NK~ )K.(<9 c 2 = Scan Area 0 37.5 75 Feet Notes (Background ranged from 72 kcpm to 13.3 kcpm as determined by an E-600 with SPA-3 Probe Refer to Table 6 for the scan area I results Scan Area 2 Connecticut Yankee Atomic Power Company 9313-0000 Final Status Survey Scan Areas 1--0( , a Legend=Areaof gunite and nip-alp=ScAreA 0 = Sample Point LL 0 37.5 75 PFeet K 20 Notes U, 19 Refer to Table 10 for investigation sample results U r6 U I &Connecticut Yankee Atomic Power Company Survey Unit 9313-0000 Final Status Survey Investigation Samples Survey Release Record Sample Location Scan Results Survey Unit 9313-0000 Sample Name Background Action Level Results Above Log Date Log Time E600 SIN Probe SIN (cnm) (CPM) (CPM) AL 9313-00-SL-00-01-0 7.36E+03 8.59E+03 7.06E+03 2/6/2007 14:05:00 1117 1008 9313-00-SL-00-02-0 7.83E+03 9.09E+03 8.79E+03 2/6/2007 13:26:00 1117 1008 9313-00-SL-00-03-0 9.64E+03 1.10E+04 9.23E+03 2/6/2007 13:32:00 1117 1008 9313-00-SL-00-04-0 8.68E+03 1.00E+04 8.25E+03 2/6/2007 13:35:00 1117 1008 9313-00-SL-00-05-0 8.70E+03 1.00E+04 8.70E+03 2/6/2007 13:39:00 1117 1008 9313-00-SL-00-06-0 7.92E+03 9.19E+03 8.56E+03 2/6/2007 13:41:00 1117 1008 9313-00-SL-00-07-0 8.75E+03 1.01 E+04 9.03E+03 2/6/2007 13:44:00 1117 1008 9313-00-SL-00-08-0 8.16E+03 9.45E+03 8.07E+03 2/6/2007 13:48:00 1117 1008 9313-00-SL-00-09-0 7.94E+03 9.21E+03 8.15E+03 2/6/2007 13:49:00 1117 1008 9313-00-SL-00-10-0 8.69E+03 1.OOE+04 8.31E+03 2/6/2007 13:52:00 1117 1008 9313-00-SL-00-11-0 7.84E+03 9.1OE+03 8.08E+03 2/6/2007 13:54:00 1117 1008 9313-00-SL-00-12-0 7.OOE+03 8.19E+03 7.18E+03 2/6/2007 13:56:00 1117 1008 9313-00-SL-00-13-0 7.81E+03 9.07E+03 8.16E+03 2/6/2007 13:58:00 1117 1008 9313-00-SL-00-14-0 7.11E+03 8.31E+03 7.55E+03 2/6/2007 13:59:00 1117 1008 9313-00-SL-00-15-0 9.36E+03 1.07E+04 9.37E+03 2/6/2007 14:01:00 1117 1008 Survey Release Record Scan Area Results Survey Unit 9313-0000 9313-0000 SCAN AREA 1 Log Number 9313-00-SC-01-01-0 9313-00-ER-01-01-1 9313-00-SC-01-02-0 9313-00-SC-01-03-0 9313-00-SC-01-04-0 9313-00-SC-01-05-0 9313-00-SC-01-06-0 9313-00-SC-01-07-0 9313-00-SC-01-08-0 9313-00-SC-01 0 9513-00-ER-01-09-1 9313-00-SC-01-10-0 9313-00-SC-01-1 1-0 9313-00-SC-01-12-0 9313-00-SC-01-13-0 9313-00-ER-01-13-1 (1)9313-00-SC-01-14-0 9313-00-SC-01-15-0 Background (cPm)1.11E+04 1.11E+04 7.55E+03 7.17E+03 1.16E+04 1.13E+04 7.46E+03 7.88E+03 1.14E+04 1.OOE+04 1.OOE+04 8.75E+03 8.95E+03 1.26E+04 1.33E+04 1.33E+04 1.10E+04 1.09E+04 Action Level (cDm)1.26E+04 1.26E+04 8.79E+03 8.38E+03 1.31 E+04 1.28E+04 8.69E+03 9.15E+03 1.29E+04 1.14E+04 1.14E+04 1.01E+04 1.03E+04 1.42E+04 1.49E+04 1.49E+04 1.25E+04 1.24E+04 Results LCfl1 1.11E+04 1.34E+04 7.04E+03 7.38E+03 1.07E+04 1.05E+04 6.98E+03 7.59E+03 1.11E+04 9.09E+03 1.35E+04 9.51 E+03 8.90E+03 1.18E+04 1.34E+04 1.42E+04 9.41 E+03 1.02E+04 Above AL Log Date Log Time E600 S/N Probe S/N 2/8/2007+ 2/12/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007+ 2/12/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/12/2007 2/8/2007 2/8/2007 10:09:00 13:48:00 10:12:00 10:14:00 10:16:00 10:20:00 10:21:00 10:23:00 10:26:00 10:38:00 13:49:00 10:40:00 10:47:00 10:57:00 11:02:00 13:49:00 11:04:00 11:06:00 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 9313-0000 SCAN AREA 2 Background Log Number cm 9313-00-SC-02-01-0 9.53E+03 9313-00-SC-02-02-0 1.06E+04 9313-00-SC-02-03-0 1.04E+04 9313-00-SC-02-04-0 1.06E+04 9313-00-ER-02-04-1 1.06E+04 9313-00-SC-02-05-0 1.02E+04 Action Level (CPM)1.09E+04 1.21 E+04 1.19E+04 1.21E+04 1.21 E+04 1.16E+04 Results 9.01 E+03 9.90E+03 1.05E+04 9.97E+03 1.27E+04 1.12E+04 Above AL Log Date Log Time E600 SIN Probe SIN 2/1/2007 2/1/2007 2/1/2007 2/1/2007+ 2/6/2007 2/1/2007 13:11:00 13:13:00 13:16:00 13:19:00 13:02:00 13:23:00 1117 1117 1117 1117 1117 1117 1008 1008 1008 1008 1008 1008 AL -Action Level (1) These locations were not above the action level, but were flagged and sampled at the discretion of the FSS Survey Release Record Scan Area Results Survey Unit 9313-0000 9313-00-SC-02-06-0 9313-00-SC-02-07-0 9313-00-ER-02-07-1 (1)9313-00-SC-02-08-0 9313-00-SC-02-09-0 9313-00-SC-02-10-0 9313-00-SC-02-1 1-0 9313-00-SC-02-12-0 9313-00-SC-02-13-0 9313-00-SC-02-14-0 9313-00-SC-02-15-0 9313-00-SC-02-16-0 9313-00-SC-02-17-0 9313-00-SC-02-18-0 9313-00-SC-02-19-0 9313-00-SC-02-20-0 9313-00-SC-02-21

-0 9313-00-SC-02-22-0 9313-00-ER-02-22-1 9313-00-SC-02-24-0 9313-00-SC-02-25-0 9313-00-SC-02-26-0 9313-00-SC-02-27-0 9313-00-SC-02-28-0 9313-00-SC-02-29-0 9313-00-SC-02-30-0 9313-00-SC-02-31-0 9313-00-SC-02-32-0 1.09E+04 9.45E+03 9.45E+03 1.03E+04 9.14E+03 9.13E+03 8.89E+03 9.31 E+03 9.08E+03 9.40E+03 9.32E+03 9.65E+03 9.43E+03 9.23E+03 9.02E+03 9.63E+03 1.07E+04 1.12E+04 1.12E+04 1.12E+04 1.16E+04 7.96E+03 7.78E+03 8.37E+03 8.20E+03 8.78E+03 8.14E+03 9.41 E+03 9.83E+03 1.24E+04 1.08E+04 1.08E+04 1.17E+04 1.05E+04 1.05E+04 1.02E+04 1.07E+04 1.04E+04 1.08E+04 1.07E+04 1.11E+04 1.08E+04 1.06E+04 1.04E+04 1.10E+04 1.22E+04 1.27E+04 1.27E+04 1.27E+04 1.31 E+04 9.23E+03 9.04E+03 9.68E+03 9.49E+03 1.01 E+04 9.43E+03 1.08E+04 1.12E+04 1.01E+04 9.87E+03 1.02E+04 9.69E+03 9.96E+03 8.45E+03 9.80E+03 9.05E+03 9.74E+03 9.26E+03 9.23E+03 9.32E+03 1.04E+04 8.53E+03 9.60E+03 9.1OE+03 1.19E+04 1.07E+04 1.30E+04 1.24E+04 1.19E+04 8.56E+03 8.02E+03 7.74E+03 8.23E+03 8.55E+03 7.85E+03 1.01E+04 9.45E+03 2/1/2007 2/1/2007 2/6/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007 2/1/2007+ 2/6/2007 2/1/2007 2/1/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 13:25:00 13:33:00 13:03:00 13:36:00 13:40:00 13:42:00 13:47:00 13:48:00 13:51:00 14:01:00 14:02:00 14:04:00 14:14:00 14:17:00 14:19:00 14:21:00 14:27:00 14:31:00 13:05:00 14:33:00 14:36:00 13:29:00 13:36:00 13:39:00 13:42:00 13:44:00 13:47:00 13:51:00 13:52:00 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1117 1111 1111 1111 1111 1111 1111 1111 1111 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1008 1004 1004 1004 1004 1004 1004 1004 1004 AL -Action Level (1) These locations were not above the action level, but were flagged and sampled at the discretion of the FSS Survey Release Record Scan Area Results Survey Unit 9313-0000 9313-00-SC-02-33-0 9313-00-SC-02-34-0 9313-00-SC-02-35-0 9313-00-SC-02-36-0 9313-00-SC-02-37-0 9313-00-SC-02-38-0 9313-00-SC-02-39-0 9313-00-SC-02-40-0 9313-00-SC-02-41

-0 9313-00-SC-02-42-0 9313-00-ER-02-42-1 9313-00-SC-02-43-0 9313-00-SC-02-44-0 9313-00-SC-02-45-0 9313-00-SC-02-46-0 9313-00-SC-02-47-0 9313-00-SC-02-48-0 9313-00-SC-02-49-0 9313-00-SC-02-51

-0 9313-00-SC-02-52-0 9313-00-SC-02-53-0 9313-00-SC-02-54-0 9313-00-ER-02-54-1 9313-00-SC-02-55-0 9313-00-SC-02-56-0 9313-00-SC-02-57-0 9313-00-SC-02-58-0 9313-00-SC-02-59-0 9313-00-SC-02-60-0 9.55E+03 9.73E+03 8.65E+03 1.03E+04 9.02E+03 1.07E+04 1.12E+04 9.48E+03 8.17E+03 1.03E+04 1.03E+04 1.19E+04 9.78E+03 8.77E+03 7.97E+03 8.13E+03 7.59E+03 8.30E+03 8.05E+03 8.05E+03 7.79E+03 8.07E+03 8.07E+03 8.82E+03 8.66E+03 8.50E+03 9.22E+03 9.30E+03 8.77E+03 1.09E+04 1.11E+04 9.98E+03 1.17E+04 1.04E+04 1.22E+04 1.27E+04 1.09E+04 9.46E+03 1.17E+04 1.17E+04 1.35E+04 1.12E+04 1.01E+04 9.24E+03 9.42E+03 8.83E+03 9.60E+03 9.33E+03 9.33E+03 9.05E+03 9.35E+03 9.35E+03 1.02E+04 9.99E+03 9.82E+03 1.06E+04 1.07E+04 1.01E+04 9.81 E+03 9.98E+03 9.08E+03 9.52E+03 8.97E+03 1.08E+04 1.07E+04 8.20E+03 8.80E+03 1.16E+04 1.23E+04 1.10E+04 8.71 E+03 7.70E+03 8.50E+03 7.38E+03 8.20E+03 8.22E+03 7.94E+03 8.04E+03 7.29E+03 8.98E+03 9.53E+03 8.80E+03 8.78E+03 7.06E+03 9.21 E+03 8.90E+03 9.42E+03 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007+ 2/12/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/7/2007 2/8/2007+ 2/12/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 13:54:00 13:56:00 13:58:00 14:01:00 14:04:00 14:08:00 14:11:00 14:14:00 14:17:00 14:20:00 13:38:00 14:22:00 14:23:00 14:26:00 14:27:00 14:29:00 14:30:00 14:32:00 14:35:00 14:36:00 14:37:00 8:20:00 13:39:00 8:24:00 8:28:00 8:31:00 9:47:00 9:52:00 10:03:00 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1111 1114 1111 1114 1114 1114 1114 1114 1114 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1004 1014 1004 1014 1014 1014 1014 1014 1014 AL -Action Level (1) These locations were not above the action level, but were flagged and sampled at the discretion of the FSS Survey Release Record Scan Area Results Survey Unit 9313-0000 9313-00-SC-02-61-0 9313-00-SC-02-62-0 9313-00-SC-02-63-0 9313-00-SC-02-64-0 9313-00-SC-02-65-0 9313-00-SC-02-66-0 9313-00-SC-02-67-0 9313-00-SC-02-68-0 9313-00-SC-02-69-0 9313-00-SC-02-70-0 9313-00-SC-02-71-0 9.16E+03 8.65E+03 8.74E+03 8.81 E+03 9.09E+03 8.07E+03 9.57E+03 9.21 E+03 8.22E+03 7.50E+03 9.47E+03 1.05E+04 9.98E+03 1.01E+04 1.02E+04 1.05E+04 9.35E+03 1.10E+04 1.06E+04 9.51 E+03 8.74E+03 1.09E+04 8.44E+03 8.60E+03 9.02E+03 8.48E+03 8.23E+03 7.77E+03 8.87E+03 8.71 E+03 7.66E+03 7.98E+03 8.82E+03 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 2/8/2007 10:08:00 10:14:00 10:19:00 10:27:00 10:32:00 10:38:00 10:42:00 10:47:00 10:50:00 10:55:00 10:59:00 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 AL -Action Level (1) These locations were not above the action level, but were flagged and sampled at the discretion of the FSS CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD ATTACHMENT 3 (LABORATORY DATA)Revision 0 General Narrative 1 General Narrative for Connecticut Yankee Atomic Power Co.Work Order: 180678 SDG: MSR#07-0077 February 19,2007 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 February 14, 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 Identification 180678001 180678002 180678003 180678004 180678005 180678006 180678007 180678008 180678009 180678010 180678011 180678012 180678013 180678014 180678015 180678016 180678017 180678018 180678019 180678020 180678021 180678022 180678023 180678024 180678025 GEL Laboratories iuC Sample Description 9313-0000-002F 9313-0000-015F 9313-0000-001F 9313-0000-003F 9313-0000-004F 9313-0000-005F 9313-0000-006F 9313-0000-007F 9313-0000-008F 9313-0000-008FS 9313-0000-009F 9313-0000-01OF 9313-0000-01 IF 9313-0000-012F 9313-0000-013F 9313-0000-014F 9313-0000-014FS 9313-0000-016F 9313-0000-017F 9313-0000-018F 9313-0000-019F 9313-0000-020F 9313-0000-021F 9313-0000-022F 9313-0000-023F PO Box 30712 Chadleston, SC 29417 2040 Savage Road Chaflseton, SC 29407 P 843.556.8171 F 843.766.1178 2 www.gol.com Items of Note There are no items to note.Case Narrative Sample analyses were conducted using methodology as outlined in GEL Laboratories, LLC (GEL) Standard Operating Procedures.

Any technical or administrative problems during analysis, data review, and reduction are contained in the analytical case narratives in the enclosed data package.Analytical Request Twenty-three soil samples were analyzed for FSSGAM. 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.

Cheryl Jones Project Manager GEL Laboratories LLc PO Box 30712 Chadleston, SC 29417 2040 Savage Road Charleston, SC 29407 P 843.556.8171 F 843.765.1178 3 www.gol.com List of current GEL Certifications as of 19 February 2007 State Certification Alaska UST-062 Arizona AZ0668 Arkansas 88-0651 CLIA 42D0904046 California 01151CA Colorado GenEngLabs Connecticut PH-0169 Dept. of Navy NFESC 413 EPA WG-15J Florida/NELAP E87156 Georgia E87156 (FL/NELAP)

Hawaii N/A Idaho N/A Illinois 200029 Indiana C-SC-01 Kansas E-10332 Kentucky 90129 Louisiana 03046 Maryland 270 Massachusetts M-SCO12 Michigan 9903 Nevada SC12 New Jersey SCO02 New Mexico FL NELAP E87156 New York 11501 North Carolina 233 North Carolina Drinking W 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania 68-00485 South Carolina 10120001/10585001/10120002 Tennessee 02934 Texas TX213-2006A Texas NELAP TI 04704235-06-TX U.S. Dept. of Agriculture S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont VT87156 Virginia 00151 Washington C1 641 4 Chain of Custody and Supporting Documentation 5

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-002 Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2007-00035 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: Comments: Jack McCarthy 860-267-3924 Media Sample Container Code Type Size-Analytical Lab (Name, City, State): Code &Type General Engineering Laboratories Code 2040 Savage Road Charleston, SC 29407 ATT: Cheryl Jones (843-556-8171)

Priority:

[:] 30 D. E] 15 D. M 7 D. )Other: V) Sample Designation Date Time U Comment, Preservation Lab Sample ID 9313-0000-OOIF 02-06-07 1408 TS G BP X 9313-0000-002F 02-06-07 1324 TS G BP X 9313-0000-003F 02-06-07 1329 TS G BP X 9313-0000-004F 02-06-07 1334 TS G BP X 9313-0000-005F 02-06-07 1340 TS G BP X 9313-0000-006F 02-06-07 1345 TS G BP X 9313-0000-007F 02-06-07 1347 TS G BP X 9313-0000-008F 02-06-07 1350 TS G BP X 9313-0000-008FS 02-06-07 1350 TS G BP X 9313-0000-009F 02-06-07 1353 TS G BP X 9313-0000-01OF 02-06-07 1355 TS G BP X NOTES: PO #: 002332 MSR #:07-0077 Z LTP QA El Radwaste QA E] Non QA Samples Shipped Via: Internal Container 0 Fed Ex Temp.: _S Deg. C El ups El Hand Custody Sealed?1 Date/Time

2) Received By Date/Time Cus ody Seal Intact?3) Relinquished By Date/Time

4) Received By Date/Time ( N Bill of Lading #5) Relinquished By Date/Time

6) Received By Date/Time I ,I, Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-002 Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2007-00036 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: Comments: Jack McCarthy 860-267-3924 Media Sample Container Code Type Size-Analytical Lab (Name, City, State): Code &Type General Engineering Laboratories Code 2040 Savage Road Charleston, SC 29407 ATT: Cheryl Jones (843-556-8171)

Priority:

1 30 D. E] 15 D. ED 7 D.Other: r 7 Sample Designation Date Time 1 4 Comment, Preservation Lab Sample ID 9313-0000-011F 02-06-07 1357 TS G BP X ___ __ _ _ _._.9313-0000-012F 02-06-07 1359 TS G BP X 9313-0000-013F 02-06-07 1400 TS G BP X 9313-0000-014F 02-06-07 1402 TS G BP X 9313-0000-014FS 02-06-07 1402 TS G BP X 9313-0000-015F 02-06-07 1405 TS G BP X 9313-0000-016F 02-06-07 1302 TS G BP X 9313-0000-017F 02-06-07 1304 TS G BP X 9313-0000-01 8F 02-06-07 1306 TS G BP X NOTES: PO #: 002332 MSR #: 07-0077 Z LTP QA El Radwaste QA LI Non QA Samples Shipped Via: Internal Container ED Fed Ex Temp.: -'I! Deg. C E] ups[E Hand Ctody Sealed?6y2 N 1) Relinquish Date/Time

2) Received By Date/Time Custody Seal Intact?)Rlinqish--

,/t07 Ojq," --;' D ioxco- [El Other 3) Relinquished By Date/Time

4) Received By Date/Time ) N Bill of Lading #5) Relinquished By Date/Time

6) Received By Date/Time Health Physics Procedure GPP-GGGR-R5 104-003-Attachment B-CY-002 Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2007-00037 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: Comments: Jack McCarthy 860-267-3924 Media Sample Container Code Type Size-Analytical Lab (Name, City, State): Code &Type General Engineering Laboratories Code 2040 Savage Road Charleston, SC 29407 ATT: Cheryl Jones (843-556-8171)

Priority:

[] 30 D.E] 15 D. M 7 D.Other: 01o 79 Sample Designation Date Time 1 Comment, Preservation Lab Sample ID 9313-0000-019F 02-12-07 1338 TS G BP X 9313-0000-020F 02-12-07 1339 TS G BP X 9313-0000-021F 02-12-07 1348 TS G BP X 9313-0000-022F 02-12-07 1349 TS G BP X 9313-0000-023F 02-12-07 1350 TS G BP X NOTES: PO #: 002332 MSR #: 07-0077 [ LTP QA E] Radwaste QA E] Non QA Samples Shipped Via: Internal Container 2 Fed Ex Temp.: Deg. C El ups El Hand Cug 3 dy Sealed?60 N 1) Relinqui Date/Time

2) Received By Date/Time E] Other Custody Seal Intact?_____43/4________________________o_

I v c~oo LOte 3) Relinquished By Date/Time

4) Received By Date/Time BillofLading

1. N Bill of Lading #5) Relinquished By Date/Time

6) Received By Date/Time

-.-

• Connecticut Yankee .Staiement of Work for Analytical Lab Services CY-ISC-SOW-0O0 Figure 1. Sample Check-in List, DatelTime Received:.

A -; f 077 .Mc0(SDG#: 6)7 -77 Work Order Number: __ _ _ _ _ _ _ _ _ _ _ _ _ _Shipping Co tainer 1D %~ aaS 1 c4&2 O Chain of Custody'#

OU-1JI ig T06-I. Custody Seal.s ori shipping container intact?..

Yes V No [-2. Custody Seals dated and signed? Yes , 1 o []3. Chain-of-Custody rcord present? Yes [4qNo [ ]-4. Cooler temperature

." 5. Vermiculite/packing materials is:* Wet [ J Dry , ] /A P- F 6.* Numberofsamples in shipping contaier:

1 t .- 4 ) 9.-7. Sample holding times exceeded?

Yes [ ] No R-" 8. Samples have-.:__i--..--hazard labels custody seals appropriate sample labels 9. Samples are.,.I min good condition l.eaking'._broken ." have air bubbles 10. Were any anomalies identified in sample receipt? Yes [J No T.*Ui.. Description of anomalies.(include sample numbers):.ample Custodian/Laboratory

'T-,.- Date: c-i jj lu .cO Telephoned to: On _y.,_" "_"_" 9 , --.7 ....... ..

SAMPLE RECEIPT & REVIEW FORM PM use only Client: (Cvvi e f 14- 1 SDG/ARCOC/Work Order: " rDate Received:

k 0)PM(A) Review (ensure non-conforming items are resolved prior to signing): Received By: Sample Receipt Criteria > Z Z Comments/Qualifiers (Required for Non-Conforming Items)I Shipping containers received Circle Applicable:

seals broken damaged container leaking container other (describe) intact and sealed? _/Samples requiring cold Circle Coolant # ice bags blue ice dry ice (&le other describe)2 preservation within (4 +/- 2 C)?Record preservation method.Chain of custody documents-included with shipment?4 Sample containers intact and Circle Applicable:

seals broken damaged container leaking container other (describe) sealed?5 Samples requiring chemical Sample ID's. containers affected and observed pH: preservation at proper pH? _6 VOA vials free of headspace Sample ID's and containers affected: (defined as < 6mm bubble)?Are Encore containers present?7 (If yes, immediately deliver to VOA laboratory) 8 Samples received within holding Id's and tests affected: time? _,,/1 Sample ID's on COC match ID's Sample ID's and containers affected:_ on bottles? /10&Date & time on COC match date Sample ID's affected: 10& time on bottles?____________________________

Number of containers received Sample ID's affected: match number indicated on COC?12 COC form is properly signed in 12 relinquished/received sections?Air Bill ,Tracking

1. 's, & 7 " 14 Additional Comments t q- 'o- L 0 3"o SRSO RAD Receipt #Sset *If > x2 area background is observed on samples identified as "non-SI Fm , regulated/non-radioactive", contact the Radiation Safety group for further Z investigation.

A Radiological Classification?

-Maximum Counts Observed*:'

Lf B PCB Regulated?

Shipped as DOI Hazardous C Material?

If yes, contact Waste ,/ l Hazard Class Shipped: Manager or ESH Manager. IN#: D Regulated as a Foreign Soil? 1110-PM (or PMA) review of Hazard classification:

Initials -Date: a ll )l 10 Data Review Qualifier Definitions 11 Data Review Qualifier Definitions Qualifier Explanation

• A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound< Result is less than value reported> Result is greater than value reported A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank B Metals-Either presence of analyte detected in the associated blank, or MDL/IDL < sample value < PQL BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample d 5-day BOD-The 2:1 depletion requirement was not met for this sample E Organics-Concentration of the target analyte exceeds the instrument calibration range E Metals-%difference of sample and SD is >10%. Sample concentration must meet flagging criteria H Analytical holding time was exceeded h Preparation or preservation holding time was exceeded J Value is estimated N Metals-The Matrix spike sample recovery is not within specified control limits N Organics-Presumptive evidence based on mass spectral library search to make a tentative identification of the analyte (TIC). Quantitation is based on nearest internal standard response factor N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the reporting limit UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound Z Paint Filter Test-Particulates passed through the filter, however no free liquids were observed.GEL Laboratories LLc POBox30712 Chadeston, SC 29417 2040 Savage Road CharlestbnSC 29407 P843.556.8171 F543.761178 www.gsl.com 12 RADIOLOGICAL ANALYSIS 13 Radiochemistry Case Narrative Connecticut Yankee Atomic Power Co. (YANK)Work Order 180678 Method/Analysis Information Product: Alphaspec Am241, Cm, Solid ALL FSS Analytical Method: DOE EML HASL-300, Am-05-RC Modified Prep Method: Dry Soil Prep GL-RAD-A-021 Method: Analytical Batch Number: Prep Batch Number: Dry Soil Prep GL-RAD-A-021 Batch Number: Ash Soil Prep Dry Soil Prep 609980 609943 609940 Sample ID 180678001 180678002 1201278745 1201278746 1201278747 1201278748 Client ID 9313-0000-002F 9313-0000-015F Method Blank (MB)180678001(9313-0000-002F)

Sample Duplicate (DUP)180678001(9313-0000-002F)

Matrix Spike (MS)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.

14 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: 180678001 (9313-0000-002F).

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 performed on data in this batch.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Method/Analysis Information 15 Product: Alphaspec Pu, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu- I1-RC Modified Prep Method: Dry Soil Prep GL-RAD-A-021 Method: Analytical Batch Number: Prep Batch Number: Dry Soil Prep GL-RAD-A-021 Batch Number: Ash Soil Prep Dry Soil Prep 609981 609943 609940 Sample ID 180678001 180678002 1201278749 1201278750 1201278751 1201278752 Client ID 9313-0000-002F 9313-0000-015F Method Blank (MB)180678001(9313-0000-002F)

Sample Duplicate (DUP)180678001(9313-0000-002F)

Matrix Spike (MS)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: 180678001 (9313-0000-002F).

QC Information All of the QC samples met the required acceptance limits.16 Technical Information:

Holding Time All sample procedures for this sample set were performed within the required holding time.Preparation Information All preparation criteria have been met for these analyses.Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis.

Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents.

A nonconformance report (NCR) was not generated for this SDG.Manual Integration No manual integrations were performed on data in this batch.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Method/Analysis Information Product: Liquid Scint Pu241, Solid-ALL FSS DOE EML HASL-300, Pu-1I -RC Modified Analytical Method: Prep Method: Dry Soil Prep GL-RAD-A-021 Method: Analytical Batch Number: Prep Batch Number: Dry Soil Prep GL-RAD-A-021 Batch Number: Ash Soil Prep Dry Soil Prep 609982 609943 609940 17 Sample ID Client ID 180678001 9313-0000-002F 180678002 9313-0000-015F 1201278753 Method Blank (MB)1201278754 180678001(9313-0000-002F)

Sample Duplicate (DUP)1201278755 180678001(9313-0000-002F)

Matrix Spike (MS)1201278756 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.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: 180678001 (9313-0000-002F).

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 18 referenced SOP or contractual documents.

A nonconformance report (NCR) was not generated for this SDG.Manual Integration No manual integrations were performed on data in this batch.Additional Comments Additional comments were not required for this sample set.Gualifier information Manual qualifiers were not required.Method/Analysis Information Product: Analytical Method: Prep Method: Analytical Batch Number: Prep Batch Number: Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived EML HASL 300, 4.5.2.3 Dry Soil Prep 610422 609940 19 Sample ID 180678001 180678002 180678003 180678004 180678005 180678006 180678007 180678008 180678009 180678010 180678011 180678012 180678013 180678014 180678015 180678016 180678017 180678018 180678019 180678020 1201279708 1201279709 1201279710 Client ID 9313-0000-002F 9313-0000-015F 9313-0000-001F 9313-0000-003F 9313-0000-004F 9313-0000-005F 9313-0000-006F 9313-0000-007F 9313-0000-008F 9313-0000-008FS 9313-0000-009F 9313-0000-01OF 9313-0000-011F 9313-0000-012F 9313-0000-013F 9313-0000-014F 9313-0000-014FS 9313-0000-016F 9313-0000-017F 9313-0000-018F Method Blank (MB)180678001(9313-0000-002F)

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

Calibration Information All initial and continuing calibration requirements have been met.Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s).Sample Geometry All counting sources were prepared in the same geometry as the calibration standards.

Quality Control (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: 180678001 (9313-0000-002F).

20 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 21 Qualifier UI U'Reason Data rejected due to high peak-width.

Data rejected due to interference.

Data rejected due to low abundance.

UI Analyte Sample Cesium-137 180678012 Europium-155 180678005 1201279709 Manganese-54 180678013 180678018 Cesium-134 180678001 180678002 180678003 180678004 180678005 180678006 180678007 180678008 180678009 180678010 180678012 180678013 180678014 180678017 180678018 180678020 Cobalt-60 180678002 Method/Analysis Information 22 Product: Analytical Method: Prep Method: Analytical Batch Number: Prep Batch Number: Sample ID 180678021 180678022 180678023 180678024 180678025 1201279729 1201279730 1201279731 Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived EML HASL 300,4.5.2.3 Dry Soil Prep 610434 609942 Client ID 9313-0000-019F 9313-0000-020F 9313-0000-021F 9313-0000-022F 9313-0000-023F Method Blank (MB)180678021(9313-0000-019F)

Sample Duplicate (DUP)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.

Ouality Control (0C) Information:

Blank Information The blank volume is representative of the sample volume in this batch.Designated QC The following sample was used for QC: 180678021 (9313-0000-019F).

QC Information All of the QC samples met the required acceptance limits.23 Technical Information:

Holding Time All sample procedures for this sample set were performed within the required holding time.Preparation Information All preparation criteria have been met for these analyses.Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis.

Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents.

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.Oualifier information Qualifier Reason Analyte Sample U'Data rejected due to interference.

Europium-155 Manganese-54 Americium-241 UI Data rejected due to low abundance.

180678021 180678023 180678021 180678023 180678022 180678024 1201279730 180678021 180678022 180678023 180678024 1201279730 Cesium- 134 Method/Analysis Information 24 Product: GFPC, Sr90, solid-ALL FSS Analytical Method: EPA 905.0 Modified Prep Method: Dry Soil Prep GL-RAD-A-021 Method: Analytical Batch Number: Prep Batch Number: Dry Soil Prep GL-RAD-A-021 Batch Number: Ash Soil Prep Dry Soil Prep 609960 609943 609940 Sample ID 180678001 180678002 1201278679 1201278680 1201278681 1201278682 Client ID 9313-0000-002F 9313-0000-015F Method Blank (MB)180678002(9313-0000-015F)

Sample Duplicate (DUP)180678002(9313-0000-015F)

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

Calibration Information All initial and continuing calibration requirements have been met.Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s).Sample Geometry All counting sources were prepared in the same geometry as the calibration standards.

Quality Control (Q0 Information:

Blank Information The blank volume is representative of the sample volume in this batch.Designated QC The following sample was used for QC: 180678002 (9313-0000-015F).

QC Information All of the QC samples met the required acceptance limits.25 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.Oualifier information Manual qualifiers were not required.Method/Analysis Information Product: Liquid Scint Tc99, Solid-ALL FSS Analytical Method: Analytical Batch Number: Sample ID 180678001 180678002 1201278651 1201278652 1201278653 1201278654 DOE EML HASL-300, Tc-02-RC Modified 609954 Client ID 9313-0000-002F 9313-0000-015F Method Blank (MB)180678001(9313-0000-002F)

Sample Duplicate (DUP)180678001(9313-0000-002F)

Matrix Spike (MS)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 26 accordance with GL-RAD-A-005 REV# 13.Calibration Information:

Calibration Information All initial and continuing calibration requirements have been met.Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s).Sample Geometry All counting sources were prepared in the same geometry as the calibration standards.

Quality Control (QC) Information:

Blank Information The blank volume is representative of the sample volume in this batch.Designated QC The following sample was used for QC: 180678001 (9313-0000-002F).

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 1201278652 (9313-0000-002F) and 180678001 (9313-0000-002F) were recounted due to a negative result greater than three times the error.Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents.

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 27 Product: Liquid Scint Fe55, Solid-ALL FSS Analytical Method: DOE RESL Fe-1, Modified Prep Method: Dry Soil Prep GL-RAD-A-021 Method: Analytical Batch Number: Prep Batch Number: Dry Soil Prep GL-RAD-A-021 Batch Number: Ash Soil Prep Dry Soil Prep 609958 609943 609940 Sample ID 180678001 180678002 1201278667 1201278668 1201278669 1201278670 Client ID 9313-0000-002F 9313-0000-015F Method Blank (MB)180678001(9313-0000-002F)

Sample Duplicate (DUP)180678001(9313-0000-002F)

Matrix Spike (MS)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 (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: 180678001 (9313-0000-002F).

QC Information 28 All of the QC samples met the required acceptance limits.Technical Information:

Holding Time All sample procedures for this sample set were performed within the required holding time.Preparation Information All preparation criteria have been met for these analyses.Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis.

Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents.

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Method/Analysis Information Product: Liquid Scint Ni63, Solid-ALL FSS Analytical Method: DOE RESL Ni-1, Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 609956 Prep Batch Number: 609943 Dry Soil Prep GL-RAD-A-021 Batch Number: 609940 29 Sample ID Client ID 180678001 9313-0000-002F 180678002 9313-0000-015F 1201278659 Method Blank (MB)1201278660 180678001(9313-0000-002F)

Sample Duplicate (DUP)1201278661 180678001(9313-0000-002F)

Matrix Spike (MS)1201278662 Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-022 REV# 8.Calibration Information:

Calibration Information All initial and continuing calibration requirements have been met.Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s).Sample Geometry All counting sources were prepared in the same geometry as the calibration standards.

Quality Control (QC) Information:

Blank Information The blank volume is representative of the sample volume in this batch.Designated QC The following sample was used for QC: 180678001 (9313-0000-002F).

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 30 referenced SOP or contractual documents.

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Method/Analysis Information Product: LSC, Tritium Dist, Solid -3 pCi/g Analytical Method: Analytical Batch Number: Sample ID 180678001 180678002 1201278655 1201278656 1201278657 1201278658 EPA 906.0 Modified 609955 Client ID 9313-0000-002F 9313-0000-015F Method Blank (MB)180678001(9313-0000-002F)

Sample Duplicate (DUP)180678001(9313-0000-002F)

Matrix Spike (MS)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 (OC) Information:

Blank Information The blank volume is representative of the sample volume in this batch.31 Designated QC The following sample was used for QC: 180678001 (9313-0000-002F).

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

Holding Time All sample procedures for this sample set were performed within the required holding time.Preparation Information All preparation criteria have been met for these analyses.Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis.

Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents.

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Method/Analysis Information Product: Liquid Scint C14, Solid AII,FSS Analytical Method: Analytical Batch Number: Sample ID 180678001 180678002 1201278663 1201278664 1201278665 1201278666 EPA EERF C-01 Modified 609957 Client ID 9313-0000-002F 9313-0000-015F Method Blank (MB)180678001(9313-0000-002F)

Sample Duplicate (DUP)180678001(9313-0000-002F)

Matrix Spike (MS)Laboratory Control Sample (LCS)32 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 (QC) Information:

Blank Information The blank volume is representative of the sample volume in this batch.Designated QC The following sample was used for QC: 180678001 (9313-0000-002F).

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.33 Oualifier information Manual qualifiers were not required.Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative.

Review Validation:

GEL requires all analytical data to be verified by a qualified data validator.

In addition, all data designated for CLP or CLP-like packaging will receive a third level validation upon completion of the data package.The following data validator verified the information presented in this case narrative:

Reviewer/Date: eo]c.7 34 SAMPLE DATA

SUMMARY

35 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Report for YANKOO Connecticut Yankee Atomic Power Co.Client SDG: MSR#07-0077 GEL Work Order: 180678 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 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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: 9313-0000-002F Proiect: YANK01204 Sample ID: 180678001 Client ID: YANKOOl Matrix: TS Vol. Recv.: Collect Date: 06-FEB-07 Receive Date: 14-FEB-07 Collector:

Client Moisture:

7%Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U 0.Curium-242 U 0.Curium-243/244 U 0.Alphaspec Pu, Solid-ALL FSS Plutonium-238 U -0.Plutonium-239/240 U I Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U Rad Gamma Spec Analysis+/-0.112+/-0.077+/-0.150 0.0657 0.0343 0.0805+/-0.112+/-0.0771+/-0.150 0.230 0.172 0.260 0.178 0.0921 10.1+/-0.0226 0.0431 +/-0.0227+/-0.0666 0.00 +/-0.0667 2.56 +/-5.82 4.75 +/-5.83 Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 Americium-241 U Bismuth-212 Bismuth-214 Cesium-134 UI Cesium-137 U Cobalt-60 U -Europium-152 U Europium-154 U Europium-155 U Lead-212 Lead-214 Manganese-54 U Niobium-94 U Potassium-40 Radium-226 Silver-108m U -Thallium-208 Rad Gas Flow Proportional Counting GFPC, Sr90, solid-ALL FSS Strontium-90 U -Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid -3 pCilg Tritium II 0.721-0.0663 0.432 0.574 0.00 0.0153 0.00235 0.00818-0.0176 0.0134 0.715 0.603 0.0114 0.00106 10.7 0.574 0.00124 0.229+/-0.122+/-0.0531+/-0.164+/-0.0719+/-0.0192+/-0.0234+/-0.0126+/-0.0419+/-0.0412+/-0.0489+/-0.0701+/-0.076+/-0.0143+/-0.0121+/-0.887+/-0.0719+/-0.0112+/-0.0329 0.0355 0.0484 0.0785 0.0205 0.0142 0.012 0.0105 0.029 0.0337 0.0327 0.0167 0.0204 0.0112 0.0103 0.0992 0.0205 0.00989 0.0104+/-0.122+/-0.0531+/-0.164+/-0.0719+/-0.0192+/-0.0234+/-0.0126+/-0.0419+/-0.0412+/-0.0489+/-0.0701+/-0.076+/-0.0143+/-0.0121+/-0.887+/-0.0719+/-0.0112+/-0.0329 0.071 0.0967 0.157 0.041 0.0285 0.024 0.0209 0.058 0.0674 0.0654 0.0333 0.0408 0.0224 0.0206 0.198 0.041 0.0198 0.0209 0.0272 1.56 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g DXH2 02/16/07 0750 609980 DXH2 02/15/07 1739 609981 DXH2 02/18/07 1553 609982 MJHI 02/15/07 1625 610422 KSD1 02/16/07 1958 609960 AXD2 02/15/07 1549 609955 0.00119 +/-0.0142 0.012 +/-0.0142 0.751 +/-0.922 0.732 +/-0.923 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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: 9313-0000-002F 180678001 Proiect: Client ID: Vol. Recv.: YANK01204 YANKO01 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 0.0162 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U 2.70 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -6.57 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.219+/-0.108 0.090 +/-0.108 0.183+/-34.6 22.7 +/-34.6 47.4+1-11.5 9.83 +1-11.5 20.4+/-0.255 0.207 +/-0.255 0.429 pCi/g pCi/g pCi/g pCi/g AXD2 02/15/07 1618 609957 MXP1 02/17/07 0730 609958 MXP1 02/16/07 1433 609956 SLNI 02/20/07 1056 609954 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1101 609940 The following Analytical Methods were performed Method Description 1 DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu-1 1-RC Modified 3 DOE EML HASL-300, Pu-1 1-RC Modified 4 EML HASL 300, 4.5.2.3 5 EPA 905.0 Modified 6 EPA 906.0 Modified 7 EPA EERF C-01 Modified 8 DOE RESL Fe-1, Modified 9 DOE RESL Ni-I, Modified 10 DOE EML HASL-300, Tc-02-RC Modified 11 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery%

Acceptable Limits Americium-243 Plutonium-242 Plutonium-242 Strontium-90 Carrier/Tracer Recovery Iron-59 Alphaspec Am241, Cm, Solid ALL Alphaspec Pu, Solid-ALL FSS Liquid Scint Pu241, Solid-ALL FS GFPC, Sr90, solid-ALL FSS GFPC, Sr90, solid-ALL FSS Liquid Scint Fe55, Solid-ALL FS 82 86 97 87 87 76 (15%-125%)

(15%-125%)

(25%-125%)

(25%-125%)

(25%-125%)

(15%-125%)

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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-002F Project: YANK01204 Sample ID: 180678001 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A Nickel-63 Liquid Scint Ni63, Solid-ALL FS 83 (25%-125%)

Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 83 (25%-125%)

Technetium-99 Liquid Scint Tc99, Solid-ALL FS 79 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 79 (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.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.39 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-015F 180678002 TS 06-FEB-07 14-FEB-07 Client 8.75%Proiect: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U Curium-242 U Curium-243/244 U Alphaspec Pu, Solid-ALL FSS Plutonium-238 U Plutonium-239/240 U Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U Rad Gamma Spec Analysis 0.0273 0.0337 0.00904+/-0.0676+/-0.0661+/-0.0685 0.029 0.00 0.0502+/-0.0677+/-0.0662+/-0.0686 0.00 +/-0.0589 0.0228 +/-0.0606 0.00 +/-0.0589 0.027 +/-0.0606-1.21 +/-5.74 4.88 +/-5.74 Gamma, Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.977 +/-0.167 Americium-241 U 0.0289 +/-0.0702 Bismuth-212 0.760 +/-0.234 Bismuth-214 0.848 +/-0.0967 Cesium-134 UI 0.00 +/-0.0192 Cesium-137 0.0522 +/-0.0228 Cobalt-60 UI 0.00 +/-0.0206 Europium-152 U -0.0437 +/-0.0495 Europium-154 U -0.0613 +/-0.0488 Europium-155 U 0.0307 +/-0.0569 Lead-212 0.970 +/-0.0862 Lead-214 0.955 +/-0.100 Manganese-54 U 0.0122 +1-0.0151 Niobium-94 U 0.00303 +/-0.014 Potassium-40 14.9 +/-1.09 Radium-226 0.848 +/-0.0967 Silver-108m U -0.0141 +/-0.0129 Thallium-208 0.305 +/-0.0393 Rad Gas Flow Proportional Counting 0.0428 0.058 0.0893 0.0223 0.0153 0.0124 0.0137 0.0319 0.0367 0.0374 0.0191 0.0235 0.0135 0.0119 0.104 0.0223 0.0109 0.0114+/-0.167+/-0.0702+/-0.234+/-0.0967+/-0.0192+/-0.0228+/-0.0206+/-0.0495+/-0.0488+/-0.0569+/-0.0862+/-0.100+1-0.0151+/-0.014+/-1.09+/-0.0967+/-0.0129+/-0.0393 0.145 0.0914 0.188 0.0815 0.135 10.4 0.0855 0.116 0.178 0.0446 0.0307 0.0247 0.0274 0.0638 0.0734 0.0747 0.0382 0.047 0.027 0.0237 0.207 0.0446 0.0218 0.0228 0.0321 1.59 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g DXH2 02/16/07 0750 609980 DXH2 02/15/07 1739 609981 DXH2 02/18/07 1609 609982 MJHI 02/15/07 1626 610422 KSDI 02/16/07 1958 609960 AXD2 02/15/07 1621 609955 GFPC, Sr9O, solid-ALL FSS Strontium-90 U Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid -3 pCi/g Tritium U 0.00644 +/-0.018 0.0144 +/-0.018 0.764 +/-0.939 0.745 +/-0.939 40 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: 9313-0000-015F 180678002 Project: Client ID: Vol. Recv.: YANKO01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%Rad Liquid Scintillation Analysis Liquid Scint C14, Solid AII, FSS Carbon-14 U -0.0587 +/-0.111 0.0939 +/-0.111 0.191 pCi/g AXD2 02/15/07 1721 609957 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U -11.1 +/-29.8 19.8 +/-29.8 41.2 pCi/g MXPI 02/17/07 0746 609958 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -6.38 +/-11.6 9.91 +/-11.6 20.5 pCi/g MXPI 02/16/07 1450 609956 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.145 +/-0.203 0.173 +/-0.203 0.355 pCi/g SLNI 02/20/07 0803 609954 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1101 609940 The following Analytical Methods were performed Method Description 1 DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu-i I-RC Modified 3 DOE EML HASL-300, Pu- 11-RC Modified 4 EML HASL 300,4.5.2.3 5 EPA 905.0 Modified 6 EPA 906.0 Modified 7 EPA EERF C-01 Modified 8 DOE RESL Fe-1, Modified 9 DOE RESL Ni-I, Modified 10 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery%

Acceptable Limits Americium-243 Plutonium-242 Plutonium-242 Strontium-90 Carrier/Tracer Recovery Iron-59 Nickel-63 Alphaspec Am241, Cm, Solid ALL Alphaspec Pu, Solid-ALL FSS Liquid Scint Pu241, Solid-ALL F5 GFPC, Sr90, solid-ALL FSS GFPC, Sr90, solid-ALL FSS Liquid Scint Fe55, Solid-ALL FS Liquid Scint Ni63, Solid-ALL FS 89 89 91 83 83 81 85 (15%-125%)

(15%-125%)

(25%-125%)

(25%-125%)

(25%-125%)

(15%-125%)

(25%-125%)

41 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-015F Project: YANK01204 Sample ID: 180678002 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%Carrier/Tracer Recovery Liquid Scint Ni63, Solid-ALL FS 85 (25%-125%)

Technetium-99 Liquid Scint Tc99, Solid-ALL FS 73 (15%-125%)

Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 73 (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.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.42 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis...................

_I ------Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-OO1F 180678003 TS 06-FEB-07 14-FEB-07 Client 9.33%Proiect: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.880 +/-0.164 0.0405 +/-0.164 0.081 pCi/g MJHI 02/15/07 1627 610422 Americium-241 U 0.0712 +/-0.0955 0.0797 +/-0.0955 0.159 pCi/g Bismuth-212 0.416 +/-0.192 0.0849 +/-0.192 0.170 pCi/g Bismuth-214 0.699 +/-0.0827 0.0213 +/-0.0827 0.0425 pCi/g Cesium-] 34 UI 0.00 +/-0.0254 0.015 +/-0.0254 0.0299 pCi/g Cesium-137 0.133 +/-0.0271 0.0125 +/-0.0271 0.025 pCi/g Cobalt-60 U 0.00411 +/-0.0152 0.013 +/-0.0152 0.026 pCi/g Europium-152 U 0.0205 +/-0.0414 0.0328 +/-0.0414 0.0655 pCi/g Europium-154 U 0.00545 +/-0.0437 0.037 +/-0.0437 0.074 pCi/g Europium-155 U 0.069 +/-0.0583 0.040 +/-0.0583 0.080 pCi/g Lead-212 0.762 +/-0.0715 0.0198 +/-0.0715 0.0397 pCi/g Lead-214 0.788 +/-0.0906 0.0226 +/-0.0906 0.0452 pCi/g Manganese-54 U 0.00468 +/-0.014 0.0124 +/-0.014 0.0248 pCi/g Niobium-94 U 0.00839 +/-0.0139 0.0105 +/-0.0139 0.021 pCi/g Potassium-40 10.3 +/-0.897 0.103 +/-0.897 0.205 pCi/g Radium-226 0.699 +/-0.0827 0.0213 +/-0.0827 0.0425 pCi/g Silver-108m U 0.00109 +/-0.0123 0.0108 +/-0.0123 0.0216 pCi/g Thallium-208 0.228 +/-0.0347 0.0121 +/-0.0347 0.0241 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 43 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-OOIF Project: YANK01204 Sample ID: 180678003 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.44 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-003F 180678004 TS 06-FEB -07 14-FEB-07 Client 3.11%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Rad Gamma Spec Analysis Gamma, Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.874 +/-0.153 0.0407 +/-0.153 0.0813 pCi/g MJH1 02/15/07 1627 610422 Americium-241 U 0.043 +/-0.0695 0.0593 +/-0.0695 0.119 pCi/g Bismuth-212 0.396 +/-0.159 0.0785 +/-0.159 0.157 pCi/g Bismuth-214 0.802 +/-0.0991 0.0207 +/-0.0991 0.0415 pCi/g Cesium-I 34 UI 0.00 +/-0.0247 0.0147 +/-0.0247 0.0294 pCi/g Cesium-137 U 0.0235 +/-0.0206 0.0129 +/-0.0206 0.0258 pCi/g Cobalt-60 0.0711 +/-0.0245 0.0109 +/-0.0245 0.0217 pCi/g Europium-152 U -0.0241 +/-0.0415 0.0299 +/-0.0415 0.0598 pCi/g Europium-154 U -0.0438 +/-0.051 0.0358 +/-0.051 0.0716 pCi/g Europium-155 U 0.0487 +/-0.053 0.0363 +/-0.053 0.0725 pCi/g Lead-212 0.781 +/-0.0691 0.0179 +/-0.0691 0.0357 pCi/g Lead-214 0.907 +/-0.0958 0.021 +/-0.0958 0.0419 pCi/g Manganese-54 U 0.0178 +/-0.0192 0.0121 +/-0.0192 0.0242 pCi/g Niobium-94 U 0.00475 +/-0.0124 0.0107 +/-0.0124 0.0214 pCi/g Potassium-40 13.6 +/-1.00 0.0967 +/-1.00 0.193 pCi/g Radium-226 0.802 +/-0.0991 0.0207 +/-0.0991 0.0415 pCi/g Silver-108m U -0.0117 +/-0.0118 0.0101 +/-0.0118 0.0201 pCi/g Thallium-208 0.256 +/-0.037 0.0114 +/-0.037 0.0227 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-003F Proiect: YANK01204 Sample ID: 180678004 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch A< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.46 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd Contact: Project: East Hampton, Connecticut 06424 Mr. Jack McCarthy Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-004F 180678005 TS 06-FEB-07 14-FEB-07 Client 6.58%Project: Client ID: Vol. Recv.: YANK01204 YANK001 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 0.894 +/-0.142 0.0388 +/-0.142 0.0775 pCi/g MJHI 02/15/07 1628 610422 Americium-241 U 0.0319 +/-0.0662 0.0552 +/-0.0662 0.110 pCi/g Bismuth-212 0.636 +/-0.180 0.0836 +/-0.180 0.167 pCi/g Bismuth-214 0.781 +/-0.0891 0.0213 +/-0.0891 0.0426 pCi/g Cesium-134 UI 0.00 +/-0.0215 0.0153 +/-0.0215 0.0307 pCi/g Cesium-137 0.0597 +/-0.0202 0.0114 +/-0.0202 0.0227 pCi/g Cobalt-60 U 0.019 +/-0.0208 0.0111 +/-0.0208 0.0222 pCi/g Europium-152 U 0.00468 +/-0.0505 0.0311 +/-0.0505 0.0622 pCi/g Europium-154 U -0.0223 +/-0.050 0.0346 +/-0.050 0.0692 pCi/g Europium-155 UI 0.00 +/-0.0535 0.0355 +/-0.0535 0.071 pCi/g Lead-212 0.858 +/-0.0748 0.0182 +/-0.0748 0.0364 pCi/g Lead-214 0.840 +/-0.0943 0.0218 +/-0.0943 0.0435 pCi/g Manganese-54 U 0.015 +/-0.0156 0.0115 +/-0.0156 0.023 pCi/g Niobium-94 U 0.00642 +/-0.0126 0.0109 +/-0.0126 0.0217 pCi/g Potassium-40 15.4 +/-1.17 0.107 +/-1.17 0.215 pCi/g Radium-226 0.781 +/-0.0891 0.0213 +/-0.0891 0.0426 pCi/g Silver-108m U -0.00639 +/-0.0121 0.0104 +/-0.0121 0.0208 pCilg Thallium-208 0.275 +/-0.0384 0.0113 +/-0.0384 0.0225 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 47 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 20, 2007 Contact: Mr, Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-004F Project: YANK01204 Sample ID: 180678005 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.48 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd Contact: Project: East Hampton, Connecticut 06424 Mr. Jack McCarthy Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-005F 180678006 TS 06-FEB-07 14-FEB-07 Client 7.47%Project: Client ID: Vol. Recv.: YANKO 1204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.769 +/-0.134 0.0359 +/-0.134 0.0718 pCi/g MJHI 02/15/07 1628 610422 Americium-241 U 0.0968 +/-0.0865 0.0738 +/-0.0865 0.148 pCi/g Bismuth-212 0.701 +/-0.171 0.0798 +/-0.171 0.160 pCi/g Bismuth-214 0.431 +/-0.070 0.0197 +/-0.070 0.0394 pCi/g Cesium-134 UI 0.00 +/-0.0198 0.0136 +/-0.0198 0.0273 pCi/g Cesium-137 U 0.0154 +/-0.0158 0.0112 +/-0.0158 0.0223 pCi/g Cobalt-60 U -0.00996 +/-0.0132 0.0104 +/-0.0132 0.0209 pCi/g Europium-152 U -0.00669 +/-0.039 0.0286 +/-0.039 0.0572 pCi/g Europium-154 U -0.0287 +/-0.0403 0.0324 +/-0.0403 0.0647 pCi/g Europium-155 U 0.041 +/-0.046 0.0347 +/-0.046 0.0693 pCi/g Lead-212 0.767 +/-0.0719 0.016 +/-0.0719 0.032 pCi/g Lead-214 0.499 +/-0.0635 0.0194 +/-0.0635 0.0387 pCi/g Manganese-54 U 0.0134 +/-0.0145 0.0106 +/-0.0145 0.0211 pCi/g Niobium-94 U 0.0109 +/-0.012 0.0106 +/-0.012 0.0211 pCi/g Potassium-40 11.4 +/-0.895 0.0854 +/-0.895 0.171 pCi/g Radium-226 0.431 +/-0.070 0.0197 +/-0.070 0.0394 pCi/g Silver-108m U -0.0115 +/-0.011 0.00931 +/-0.011 0.0186 pCi/g Thallium-208 0.270 +/-0.0357 0.0101 +/-0.0357 0.0202 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1101 609940 The following Analytical Methods were performed Method Description 1 EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 49 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-005F Project: YANK01204 Sample ID: 180678006 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-006F 180678007 TS 06-FEB-07 14-FEB-07 Client 8.34%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Rad Gamma Spec Analysis Gamma, Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.917 +1-0.151 0.0386 +/-0.151 0.0772 pCi/g MJHI 02/15/07 1629 610422 Americium-241 U 0.0581 +/-0.044 0.0368 +/-0.044 0.0735 pCi/g Bismuth-212 0.455 +/-0.178 0.0872 +/-0.178 0.174 pCi/g Bismuth-214 0.615 +/-0.077 0.0207 +/-0.077 0.0414 pCi/g Cesium-134 Ul 0.00 +/-0.0234 0.015 +/-0.0234 0.0299 pCi/g Cesium-137 U -0.0109 +/-0.0136 0.0111 +/-0.0136 0.0221 pCi/g Cobalt-60 U -0.011 +/-0.0136 0.0107 +/-0.0136 0.0213 pCi/g Europium-152 U 0.00574 +/-0.0371 0.0302 +/-0.0371 0.0603 pCi/g Europium-154 U -0.0489 +/-0.0409 0.0315 +/-0.0409 0.0629 pCi/g Europium-155 U 0.0475 +/-0.0381 0.0314 +/-0.0381 0.0628 pCi/g Lead-212 0.937 +/-0.0825 0.0161 +/-0.0825 0.0321 pCi/g Lead-214 0.629 +/-0.0714 0.0212 +/-0.0714 0.0425 pCi/g Manganese-54 U -0.00864 +/-0.0136 0.0115 +/-0.0136 0.0229 pCi/g Niobium-94 U -0.00869 +/-0.0131 0.010 +/-0.0131 0.020 pCi/g Potassium-40 14.3 +/-0.998 0.089 +/-0.998 0.178 pCi/g Radium-226 0.615 +/-0.077 0.0207 +/-0.077 0.0414 pCi/g Silver-108m U -0.0102 +/-0.0129 0.00934 +/-0.0129 0.0187 pCi/g Thallium-208 0.287 +/-0.0365 0.0109 +/-0.0365 0.0217 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-006F Project: YANK01204 Sample ID: 180678007 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.52 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-007F 180678008 TS 06-FEB-07 14-FEB-07 Client 7.32%Project: Client ID: Vol. Recv.: YANK01204 YANK001 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 0.828 +/-0.133 0.0351 +/-0.133 0.0702 pCi/g MJH1 02/15/07 1629 610422 Americium-241 U 0.0478 +/-0.0433 0.0352 +/-0.0433 0.0704 pCi/g Bismuth-212 0.584 +/-0.162 0.0739 +/-0.162 0.148 pCi/g Bismuth-214 0.573 +/-0.0695 0.0183 +/-0.0695 0.0366 pCi/g Cesium-134 UI 0.00 +/-0.0182 0.0126 +/-0.0182 0.0252 pCi/g Cesium-137 U -0.00551 +/-0.0123 0.0103 +/-0.0123 0.0206 pCi/g Cobalt-60 U 0.00457 +/-0.0127 0.0109 +/-0.0127 0.0218 pCi/g Europium-152 U -0.0121 +/-0.0363 0.0262 +/-0.0363 0.0523 pCi/g Europium-154 U -0.00225 +/-0.0402 0.0313 +/-0.0402 0.0626 pCi/g Europium-155 U 0.054 +/-0.045 0.029 +/-0.045 0.0579 pCi/g Lead-212 0.791 +/-0.0709 0.0155 +/-0.0709 0.031 pCi/g Lead-214 0.648 +/-0.073 0.0186 +/-0.073 0.0372 pCi/g Manganese-54 U 0.00436 +/-0.0124 0.00992 +/-0.0124 0.0198 pCi/g Niobium-94 U-0.000122

+/-0.0107 0.00948 +/-0.0107 0.0189 pCi/g Potassium-40 13.1 +/-0.915 0.0886 +/-0.915 0.177 pCi/g Radium-226 0.573 +/-0.0695 0.0183 +/-0.0695 0.0366 pCi/g Silver-108m U 0.000377 +/-0.0102 0.009 +/-0.0102 0.018 pCi/g Thallium-208 0.277 +/-0.0351 0.00951 +/-0.0351 0.019 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-007F Project: YANK01204 Sample ID: 180678008 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.54 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-008F 180678009 TS 06-FEB-07 14-FEB-07 Client 5.92%Project: Client ID: Vol. Recv.: YANK01204 YANK001 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 0.884 +/-0.134 0.0323 +/-0.134 0.0645 pCi/g MJH1 02/15/07 1634 610422 Americium-241 U 0.0333 +/-0.0416 0.0356 +/-0.0416 0.0712 pCi/g Bismuth-212 0.531 +/-0.168 0.0736 +/-0.168 0.147 pCi/g Bismuth-214 0.531 +/-0.0666 0.0185 +/-0.0666 0.037 pCi/g Cesium-134 UI 0.00 +/-0.0199 0.0135 +/-0.0199 0.0271 pCi/g Cesium-137 U 0.0167 +/-0.0127 0.0114 +/-0.0127 0.0228 pCi/g Cobalt-60 U -0.00231 +/-0.0118 0.0098 +/-0.0118 0.0196 pCi/g Europium-152 U 0.00454 +/-0.0328 0.026 +/-0.0328 0.0519 pCi/g Europium-154 U 0.00353 +/-0.0359 0.0305 +/-0.0359 0.0611 pCi/g Europium-155 U 0.0529 +/-0.0356 0.0294 +/-0.0356 0.0588 pCi/g Lead-212 0.829 +/-0.0703 0.0149 +/-0.0703 0.0298 pCi/g Lead-214 0.622 +/-0.0685 0.0175 +/-0.0685 0.0351 pCi/g Manganese-54 U 0.00247 +/-0.0141 0.0099 +/-0.0141 0.0198 pCi/g Niobium-94 U 0.00389 +/-0.0107 0.00927 +/-0.0107 0.0185 pCi/g Potassium-40 13.1 +/-0.941 0.0813 +/-0.941 0.163 pCi/g Radium-226 0.531 +/-0.0666 0.0185 +/-0.0666 0.037 pCi/g Silver-108m U -0.00149 +/-0.00957 0.00845 +/-0.00957 0.0169 pCi/g Thallium-208 0.283 +/-0.0359 0.0094 +/-0.0359 0.0188 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 55 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-008F Project: YANK01204 Sample ID: 180678009 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A< 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.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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-008FS 180678010 TS 06-FEB-07 14-FEB-07 Client 5.99%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1I Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.827 +/-0.117 0.0272 +/-0.117 0.0544 pCi/g MJH1 02/15/07 1635 610422 Americium-241 U 0.0847 +/-0.065 0.0571 +/-0.065 0.114 pCi/g Bismuth-212 0.498 +/-0.127 0.0585 +/-0.127 0.117 pCi/g Bismuth-214 0.476 +/-0.0614 0.0151 +/-0.0614 0.0302 pCi/g Cesium-134 UI 0.00 +/-0.0167 0.0107 +/-0.0167 0.0214 pCi/g Cesium-137 U 0.0105 +/-0.00979 0.00826 +/-0.00979 0.0165 pCi/g Cobalt-60 U 0.00449 +/-0.00865 0.00754 +/-0.00865 0.0151 pCi/g Europium-152 U -0.0282 +/-0.0293 0.0224 +/-0.0293 0.0448 pCi/g Europium-154 U -0.0125 +/-0.032 0.0226 +/-0.032 0.0452 pCi/g Europium-155 U 0.0545 +/-0.0411 0.0323 +/-0.0411 0.0645 pCi/g Lead-212 0.793 +/-0.0688 0.0142 +/-0.0688 0.0284 pCi/g Lead-214 0.568 +/-0.0593 0.0155 +/-0.0593 0.0311 pCi/g Manganese-54 U 0.0128 +/-0.0145 0.00727 +/-0.0145 0.0145 pCi/g Niobium-94 U -0.0017 +/-0.010 0.00736 +/-0.010 0.0147 pCi/g Potassium-40 13.2 +/-0.865 0.0677 +/-0.865 0.135 pCi/g Radium-226 0.476 +/-0.0614 0.0151 +/-0.0614 0.0302 pCi/g Silver-108m U -0.0086 +/-0.00826 0.00717 +/-0.00826 0.0143 pCi/g Thallium-208 0.261 +/-0.0307 0.00757 +/-0.0307 0.0151 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-008FS Project: YANK01204 Sample ID: 180678010 Client ID: YANKOO0 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.58 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd Contact: Project: East Hampton, Connecticut 06424 Mr. Jack McCarthy Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: 9313-0000-009F Project: YANK01204 Sample ID: 180678011 Client ID: YANKOO Matrix: TS Vol. Recv.: Collect Date: 06-FEB-07 Receive Date: 14-FEB-07 Collector:

Client Moisture:

8.77%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 0.845 +/-0.156 0.0476 +/-0.156 0.0951 pCi/g MJHI 02/15/07 1635 610422 Americium-241 U 0.0202 +/-0.0218 0.0184 +/-0.0218 0.0368 pCi/g Bismuth-212 0.513 +/-0.217 0.0964 +/-0.217 0.193 pCi/g Bismuth-214 0.605 +/-0.0834 0.0223 +/-0.0834 0.0445 pCi/g Cesium-134 U 0.0133 +/-0.0251 0.0174 +/-0.0251 0.0348 pCi/g Cesium-137 U -0.00137 +/-0.0185 0.0143 +/-0.0185 0.0285 pCi/g Cobalt-60 U 0.0034 +/-0.0176 0.015 +/-0.0176 0.030 pCi/g Europium-152 U 0.0448 +/-0.0562 0.0314 +/-0.0562 0.0628 pCi/g Europium-154 U -0.0378 +/-0.0544 0.0439 +/-0.0544 0.0877 pCi/g Europium-155 U 0.0341 +/-0.0413 0.0282 +/-0.0413 0.0563 pCi/g Lead-212 0.801 +/-0.078 0.0169 +/-0.078 0.0338 pCi/g Lead-214 0.566 +/-0.0754 0.0228 +/-0.0754 0.0455 pCi/g Manganese-54 U 0.0193 +/-0.0184 0.0141 +/-0.0184 0.0283 pCi/g Niobium-94 U -0.00217 +/-0.0139 0.0124 +/-0.0139 0.0247 pCi/g Potassium-40 12.6 +/-0.723 0.121 +/-0.723 0.241 pCi/g Radium-226 0.605 +/-0.0834 0.0223 +/-0.0834 0.0445 pCi/g Silver-108m U -0.0048 +/-0.0126 0.011 +/-0.0126 0.022 pCi/g Thallium-208 0.269 +/-0.0381 0.0123 +/-0.0381 0.0245 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-009F Project: YANK01204 Sample ID: 180678011 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%** Analyte is a surrogate compound< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.60 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd Contact: Project: East Hampton, Connecticut 06424 Mr. Jack McCarthy Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-01 OF 180678012 TS 06-FEB-07 14-FEB-07 Client 8.59%Proiect: Client ID: Vol. Recv.: YANK01204 YANK001 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 0.649 +/-0.111 0.0354 +/-0.111 0.0708 pCi/g MJHI 02/15/07 1643 610422 Americium-241 U 0.0524 +/-0.0667 0.0587 +/-0.0667 0.117 pCi/g Bismuth-212 0.480 +/-0.147 0.0721 +/-0.147 0.144 pCi/g Bismuth-214 0.483 +/-0.0626 0.0179 +/-0.0626 0.0357 pCi/g Cesium-134 UI 0.00 +/-0.0201 0.0125 +/-0.0201 0.025 pCi/g Cesium-137 UI 0.00 +/-0.0249 0.00971 +/-0.0249 0.0194 pCi/g Cobalt-60 U -0.00093 +/-0.0125 0.0105 +/-0.0125 0.0211 pCi/g Europium-152 U -0.0237 +/-0.0415 0.0259 +/-0.0415 0.0517 pCi/g Europium-154 U -0.0167 +/-0.0363 0.0299 +/-0.0363 0.0598 pCi/g Europium-155 U 0.0551 +/-0.0435 0.033 +/-0.0435 0.0659 pCi/g Lead-212 0.634 +/-0.0588 0.0156 +/-0.0588 0.0312 pCi/g Lead-214 0.561 +/-0.0641 0.019 +/-0.0641 0.038 pCi/g Manganese-54 U -0.00225 +/-0.0126 0.00952 +/-0.0126 0.019 pCi/g Niobium-94 U 0.00424 +/-0.0105 0.00924 +/-0.0105 0.0185 pCi/g Potassium-40 10.3 +/-0.823 0.0711 +/-0.823 0.142 pCi/g Radium-226 0.483 +/-0.0626 0.0179 +/-0.0626 0.0357 pCi/g Silver-108m U -0.00627 +/-0.00985 0.00867 +/-0.00985 0.0173 pCi/g Thallium-208 0.199 +/-0.0273 0.00919 +/-0.0273 0.0184 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 61 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-01OF Project: YANK01204 Sample ID: 180678012 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.62 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-011F 180678013 TS 06-FEB-07 14-FEB-07 Client 6.28%Project: Client ID: Vol. Recv.: YANK01204 YANK001 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 0.757 +/-0.121 0.0332 +/-0.121 0.0663 pCi/g MJH1 02/15/07 1644 610422 Americium-241 U 0.021 +/-0.0489 0.0408 +/-0.0489 0.0815 pCi/g Bismuth-212 0.497 +/-0.144 0.0721 +/-0.144 0.144 pCi/g Bismuth-214 0.527 +/-0.0647 0.0188 +/-0.0647 0.0376 pCi/g Cesium-134 UI 0.00 +/-0.0161 0.0132 +/-0.0161 0.0264 pCi/g Cesium-137 0.0279 +/-0.015 0.0109 +/-0.015 0.0218 pCi/g Cobalt-60 U 0.00262 +/-0.0123 0.0106 +/-0.0123 0.0211 pCi/g Europium-152 U -0.00518 +/-0.0374 0.0274 +/-0.0374 0.0549 pCi/g Europium-154 U -0.012 +/-0.040 0.0334 +/-0.040 0.0668 pCi/g Europium-155 U 0.0237 +/-0.0453 0.0303 +/-0.0453 0.0606 pCi/g Lead-212 0.726 +/-0.0689 0.0162 +/-0.0689 0.0323 pCi/g Lead-214 0.572 +/-0.0699 0.0194 +/-0.0699 0.0388 pCi/g Manganese-54 UI 0.00 +/-0.0245 0.00975 +/-0.0245 0.0195 pCi/g Niobium-94 U -0.00576 +/-0.011 0.0092 +/-0.011 0.0184 pCi/g Potassium-40 12.3 +/-0.887 0.0932 +/-0.887 0.186 pCi/g Radium-226 0.527 +/-0.0647 0.0188 +/-0.0647 0.0376 pCi/g Silver-108m U -0.0125 +/-0.0105 0.0089 +/-0.0105 0.0178 pCi/g Thallium-208 0.239 +/-0.0325 0.00964 +/-0.0325 0.0193 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-011F Project: YANK01204 Sample ID: 180678013 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.64 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certifie2te of Analw~is Certificate ofA alvsis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-012F 180678014 TS 06-FEB-07 14-FEB-07 Client 5.31%Proiect: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.757 +/-0.107 0.0248 +/-0.107 0.0495 pCi/g MJHI 02/15/07 1645 610422 Americium-241 U 0.0581 +/-0.0417 0.0371 +/-0.0417 0.0741 pCi/g Bismuth-212 0.570 +/-0.116 0.0548 +/-0.116 0.110 pCi/g Bismuth-214 0.811 +/-0.0895 0.014 +/-0.0895 0.028 pCi/g Cesium-134 UI 0.00 +/-0.0158 0.00962 +/-0.0158 0.0192 pCi/g Cesium-137 0.0296 +/-0.0145 0.00756 +/-0.0145 0.0151 pCi/g Cobalt-60 U 0.00224 +/-0.00809 0.00696 +/-0.00809 0.0139 pCi/g Europium-152 U -0.00505 +/-0.0309 0.0216 +/-0.0309 0.0431 pCi/g Europium-154 U -0.00177 +/-0.0255 0.0217 +/-0.0255 0.0434 pCi/g Europium-155 U 0.0501 +/-0.0369 0.0292 +/-0.0369 0.0584 pCi/g Lead-212 0.753 +/-0.063 0.0131 +/-0.063 0.0261 pCi/g Lead-214 0.942 +/-0.0901 0.015 +/-0.0901 0.0299 pCi/g Manganese-54 U 0.000308 +/-0.00852 0.00759 +/-0.00852 0.0152 pCi/g Niobium-94 U 0.00575 +/-0.0081 0.00717 +/-0.0081 0.0143 pCi/g Potassium-40 10.4 +/-0.700 0.0629 +/-0.700 0.126 pCi/g Radium-226 0.811 +/-0.0895 0.014 +/-0.0895 0.028 pCi/g Silver-108m U 0.00242 +/-0.00756 0.0069 +/-0.00756 0.0138 pCi/g Thallium-208 0.225 +/-0.0273 0.00738 +/-0.0273 0.0147 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-012F Project: YANK01204 Sample ID: 180678014 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.66 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-013F 180678015 TS 06-FEB-07 14-FEB-07 Client 3.16%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter (Rad Gamma Spec Analysis Jualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 Americium-241 Bismuth-212 Bismuth-214 Cesium-134 Cesium-137 Cobalt-60 Europium-152 Europium-154 Europium-155 Lead-212 Lead-214 Manganese-54 Niobium-94 Potassium-40 Radium-226 Silver-108m Thallium-208 0.803 U -0.0416 0.565 0.541 U 0.0324 0.0721 U 0.0295 U -0.0334 U -0.041 U 0.0134 0.782 0.696 U 0.00911 U 0.0134 13.8 0.541 U 0.00515 0.295+/-0.194+/-0.0866+/-0.275+/-0.114+/-0.029+/-0.0391+/-0.0204+/-0.0634+/-0.0674+/-0.0586+/-0.088+/-0.105+/-0.0209+/-0.0194+/-1.32+/-0.114+/-0.0184+/-0.0482 0.0643 0.083 0.129 0.0354 0.0233 0.0204 0.0196 0.0456 0.0536 0.0556 0.0274 0.0343 0.0191 0.0175 0.160 0.0354 0.0168 0.0178+/-0.194+/-0.0866+/-0.275+/-0.114+/-0.029+/-0.0391+/-0.0204+/-0.0634+/-0.0674+/-0.0586+/-0.088+/-0.105+/-0.0209+/-0.0194+/-1.32+/-0.114+/-0.0184+/-0.0482 0.129 0.166 0.258 0.0707 0.0466 0.0408 0.0391 0.0911 0.107 0.111 0.0548 0.0686 0.0381 0.0349 0.320 0.0707 0.0336 0.0356 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g MJH1 02/16/07 0942 610422 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1101 609940 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-013F Project: YANK01204 Sample ID: 180678015 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< 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.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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-014F 180678016 TS 06-FEB-07 14-FEB-07 Client 8.03%Project: Client ID: Vol. Recv.: YANK0 1204 YANK001 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 0.645 +/-0.150 0.0541 +/-0.150 0.108 pCi/g MJHI 02/16/07 0942 610422 Americium-241 U 0.0873 +/-0.0888 0.079 +/-0.0888 0.158 pCi/g Bismuth-212 0.510 +/-0.213 0.116 +/-0.213 0.232 pCi/g Bismuth-214 0.538 +/-0.0962 0.0272 +/-0.0962 0.0543 pCi/g Cesium-134 U 0.0268 +/-0.0321 0.0187 +/-0.0321 0.0375 pCi/g Cesium-137 U 0.00662 +/-0.023 0.0181 +/-0.023 0.0362 pCi/g Cobalt-60 U 0.00139 +/-0.0172 0.0147 +/-0.0172 0.0295 pCi/g Europium-152 U -0.0442 +/-0.0714 0.0415 +/-0.0714 0.083 pCi/g Europium-154 U -0.026 +/-0.0568 0.0458 +/-0.0568 0.0915 pCi/g Europium-155 U -0.0362 +/-0.054 0.0496 +/-0.054 0.0991 pCi/g Lead-212 0.675 +/-0.0757 0.025 +/-0.0757 0.050 pCi/g Lead-214 0.558 +/-0.097 0.0309 +/-0.097 0.0617 pCi/g Manganese-54 U 0.0115 +/-0.0184 0.017 +/-0.0184 0.034 pCi/g Niobium-94 U 0.013 +/-0.0179 0.0158 +/-0.0179 0.0316 pCi/g Potassium-40 9.26 +/-0.911 0.127 +/-0.911 0.254 pCi/g Radium-226 0.538 +/-0.0962 0.0272 +/-0.0962 0.0543 pCi/g Silver-108m U 0.000837 +/-0.0162 0.0146 +/-0.0162 0.0292 pCi/g Thallium-208 0.223 +/-0.0426 0.0159 +/-0.0426 0.0319 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1107 609942 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-014F Project: YANK01204 Sample ID: 180678016 Client ID: YANKOOl Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.70 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-014FS 180678017 TS 06-FEB-07 14-FEB-07 Client 7.79%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch A Rad Gamma Spec Analysis Gamma, Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.803 +/-0.175 0.0557 +/-0.175 0.111 pCi/g MJH1 02/16/07 0943 610422 Americium-241 U 0.0231 +/-0.0994 0.087 +/-0.0994 0.174 pCi/g Bismuth-212 0.358 +/-0.245 0.129 +/-0.245 0.258 pCi/g Bismuth-214 0.528 +/-0.0919 0.0268 +/-0.0919 0.0536 pCi/g Cesium-134 UI 0.00 +/-0.0367 0.0219 +/-0.0367 0.0437 pCi/g Cesium-137 U -0.00506 +/-0.0204 0.0174 +/-0.0204 0.0348 pCi/g Cobalt-60 U 0.00733 +/-0.0179 0.016 +/-0.0179 0.032 pCi/g Europium-152 U 0.000197 +/-0.0573 0.0427 +/-0.0573 0.0853 pCi/g Europium-154 U 0.00114 +/-0.0641 0.0548 +/-0.0641 0.109 pCi/g Europium-155 U 0.00366 +/-0.0548 0.0522 +/-0.0548 0.104 pCi/g Lead-212 0.621 +/-0.0672 0.0256 +/-0.0672 0.0511 pCi/g Lead-214 0.519 +/-0.0831 0.031 +/-0.0831 0.0619 pCi/g Manganese-54 U 0.00337 +/-0.0199 0.0179 +/-0.0199 0.0357 pCi/g Niobium-94 U 0.0114 +/-0.0176 0.0159 +/-0.0176 0.0319 pCi/g Potassium-40 9.47 +/-0.903 0.116 +/-0.903 0.233 pCi/g Radium-226 0.528 +/-0.0919 0.0268 +/-0.0919 0.0536 pCi/g Silver-108m U 0.00111 +/-0.0158 0.0144 +/-0.0158 0.0287 pCi/g Thallium-208 0.192 +/-0.0449 0.0153 +/-0.0449 0.0306 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1107 609942 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-014FS Project: YANK01204 Sample ID: 180678017 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.72 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-016F 180678018 TS 06-FEB-07 14-FEB-07 Client 4.24%Project: Client ID: Vol. Recv.: YANK01204 YANK001 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 1.54 +/-0.246 0.0604 +/-0.246 0.121 pCi/g MJHI 02/16/07 0944 610422 Americium-241 U 0.0556 +/-0.104 0.0846 +/-0.104 0.169 pCi/g Bismuth-212 0.887 +/-0.293 0.127 +/-0.293 0.253 pCi/g Bismuth-214 1.74 +/-0.176 0.0299 +/-0.176 0.0597 pCi/g Cesium-134 UI 0.00 +/-0.0278 0.0221 +/-0.0278 0.0443 pCi/g Cesium-137 U 0.0141 +/-0.0205 0.0178 +/-0.0205 0.0356 pCi/g Cobalt-60 U 0.020 +/-0.0207 0.0171 +/-0.0207 0.0342 pCi/g Europium-152 U -0.0115 +/-0.0574 0.0462 +/-0.0574 0.0923 pCi/g Europium-154 U -0.0347 +/-0.0682 0.0557 +/-0.0682 0.111 pCi/g Europium-155 U 0.0587 +/-0.0594 0.0546 +/-0.0594 0.109 pCi/g Lead-212 1.32 +/-0.113 0.0262 +/-0.113 0.0523 pCi/g Lead-214 1.88 +/-0.178 0.0325 +/-0.178 0.065 pCi/g Manganese-54 Ul 0.00 +/-0.0297 0.0153 +/-0.0297 0.0307 pCi/g Niobium-94 U 0.0102 +/-0.0183 0.0158 +/-0.0183 0.0316 pCi/g Potassium-40 25.0 +/-1.87 0.145 +/-1.87 0.289 pCi/g Radium-226 1.74 +/-0.176 0.0299 +/-0.176 0.0597 pCi/g Silver-108m U -0.00837 +/-0.0173 0.0149 +/-0.0173 0.0298 pCi/g Thallium-208 0.452 +/-0.0552 0.0161 +/-0.0552 0.0322 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB] 02/14/07 1107 609942 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-016F Proiect: YANK01204 Sample ID: 180678018 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.74 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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-017F 180678019 TS 06-FEB-07 14-FEB-07 Client 3.8%Project: Client ID: Vol. Recv.: YANK01204 YANK001 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 0.553 +/-0.164 0.0751 +/-0.164 0.150 pCi/g MJH1 02/16/07 0946 610422 Americium-241 U 0.0024 +/-0.038 0.0332 +/-0.038 0.0664 pCi/g Bismuth-212 0.576 +/-0.293 0.151 +/-0.293 0.302 pCi/g Bismuth-214 0.361 +/-0.105 0.0393 +/-0.105 0.0785 pCi/g Cesium-134 U 0.0255 +/-0.0385 0.0247 +/-0.0385 0.0493 pCi/g Cesium-137 U 0.0388 +/-0.0604 0.0202 +/-0.0604 0.0404 pCi/g Cobalt-60 U 0.0257 +/-0.028 0.0201 +/-0.028 0.0402 pCi/g Europium-152 U -0.0449 +/-0.0775 0.052 +/-0.0775 0.104 pCi/g Europium-154 U 0.0273 +/-0.0702 0.062 +/-0.0702 0.124 pCi/g Europium-155 U -0.0147 +/-0.0568 0.0513 +/-0.0568 0.102 pCi/g Lead-212 0.521 +/-0.0716 0.0287 +/-0.0716 0.0574 pCi/g Lead-214 0.487 +/-0.0882 0.0366 +/-0.0882 0.0732 pCi/g Manganese-54 U -0.00279 +/-0.0243 0.0216 +/-0.0243 0.0431 pCi/g Niobium-94 U -0.00422 +/-0.0219 0.0188 +/-0.0219 0.0376 pCi/g Potassium-40 9.02 +/-0.906 0.168 +/-0.906 0.336 pCi/g Radium-226 0.361 +/-0.105 0.0393 +/-0.105 0.0785 pCi/g Silver-108m U -0.0155 +/-0.0207 0.0181 +/-0.0207 0.0361 pCi/g Thallium-208 0.241 +/-0.0522 0.0201 +/-0.0522 0.0401 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1107 609942 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 75 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: February 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-017F Project: YANK01204 Sample ID: 180678019 Client ID: YANKOOI Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch < Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.76 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 Contact: Mr, Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-018F 180678020 TS 06-FEB-07 14-FEB-07 Client 8.56%Project: Client ID: Vol. Recv.: YANK01204 YANK001 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 1.22 +/-0.182 0.0411 +/-0.182 0.0822 pCi/g MJHI 02/16/07 0946 610422 Americium-241 U 0.0424 +/-0.101 0.0866 +/-0.101 0.173 pCi/g Bismuth-212 0.484 +/-0.216 0.085 +/-0.216 0.170 pCi/g Bismuth-214 1.02 +/-0.117 0.0215 +/-0.117 0.0431 pCi/g Cesium-134 UI 0.00 +/-0.0273 0.0154 +/-0.0273 0.0308 pCi/g Cesium-137 0.0538 +/-0.023 0.0115 +/-0.023 0.0229 pCi/g Cobalt-60 U-0.000149

+/-0.0136 0.0115 +/-0.0136 0.0229 pCi/g Europium-152 U 0.0431 +/-0.0598 0.0338 +/-0.0598 0.0675 pCi/g Europium-154 U -0.0944 +/-0.0566 0.0351 +/-0.0566 0.0702 pCi/g Europium-155 U 0.072 +/-0.0703 0.0484 +/-0.0703 0.0968 pCi/g Lead-212 1.11 +/-0.0977 0.0211 +/-0.0977 0.0421 pCi/g Lead-214 1.20 +/-0.120 0.0234 +/-0.120 0.0468 pCi/g Manganese-54 U 0.019 +/-0.0138 0.0115 +/-0.0138 0.0229 pCi/g Niobium-94 U 0.00307 +/-0.0133 0.0112 +/-0.0133 0.0224 pCi/g Potassium-40 17.7 +/-1.18 0.0937 +/-1.18 0.187 pCi/g Radium-226 1.02 +/-0.117 0.0215 +/-0.117 0.0431 pCi/g Silver-108m U-0.000939

+/-0.0129 0.0115 +/-0.0129 0.023 pCi/g Thallium-208 0.360 +/-0.0435 0.012 +/-0.0435 0.024 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1107 609942 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 77 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 20, 2007 Contact: Mr, Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-018F Proiect: YANK01204 Sample ID: 180678020 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch A< 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 I Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.78 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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: 9313-0000-019F Proiect: YANK01204 Sample ID: 180678021 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 12-FEB-07 Receive Date: 14-FEB-07 Collector:

Client Moisture:

9.92%Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.08 +/-0.160 0.0355 +/-0.160 0.071 pCi/g MJHI 02/16/07 1549 610434 Americium-241 U 0.0528 +/-0.0721 0.0614 +/-0.0721 0.123 pCi/g Bismuth-212 0.686 +/-0.146 0.0764 +/-0.146 0.153 pCi/g Bismuth-214 0.989 +/-0.102 0.0184 +/-0.102 0.0368 pCi/g Cesium-134 UI 0.00 +/-0.0166 0.0138 +/-0.0166 0.0275 pCi/g Cesium-137 0.0919 +/-0.0202 0.0112 +/-0.0202 0.0223 pCi/g Cobalt-60 U 0.0246 +/-0.0164 0.0124 +/-0.0164 0.0248 pCi/g Europium-152 U -0.0312 +/-0.0397 0.0284 +/-0.0397 0.0568 pCi/g Europium-154 U -0.0242 +/-0.0405 0.0333 +/-0.0405 0.0666 pCi/g Europium-155 Ul 0.00 +/-0.0467 0.0348 +/-0.0467 0.0696 pCi/g Lead-212 1.10 +/-0.0929 0.0167 +/-0.0929 0.0334 pCi/g Lead-214 1.05 +/-0.100 0.0193 +/-0.100 0.0386 pCi/g Manganese-54 UI 0.00 +/-0.0124 0.0104 +/-0.0124 0.0208 pCi/g Niobium-94 U 0.0042 +/-0.0113 0.00977 +/-0.0113 0.0195 pCi/g Potassium-40 17.7 +/-1.29 0.0835 +/-1.29 0.167 pCi/g Radium-226 0.989 +/-0.102 0.0184 +/-0.102 0.0368 pCi/g Silver-108m U -0.00104 +/-0.0105 0.00927 +/-0.0105 0.0185 pCi/g Thallium-208 0.339 +/-0.0388 0.00999 +/-0.0388 0.020 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1107 609942 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria 79 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-019F Project: YANK01204 Sample ID: 180678021 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch A** Analyte is a surrogate compound< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.80 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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-020F 180678022 TS 12-FEB-07 14-FEB-07 Client 7.97%Proiect: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1l Rad Gamma Spec Analysis Gamma, Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.695 +/-0.140 0.0432 +/-0.140 0.0863 pCi/g MJH1 02/16/07 1550 610434 Americium-241 UI 0.00 +/-0.025 0.0224 +/-0.025 0.0448 pCi/g Bismuth-212 0.572 +/-0.182 0.102 +/-0.182 0.205 pCi/g Bismuth-214 0.646 +/-0.0863 0.0244 +/-0.0863 0.0488 pCi/g Cesium-134 UI 0.00 +/-0.027 0.0169 +/-0.027 0.0338 pCi/g Cesium-137 0.0838 +/-0.0219 0.0138 +/-0.0219 0.0277 pCi/g Cobalt-60 U -0.00446 +/-0.0185 0.0133 +/-0.0185 0.0266 pCi/g Europium-152 U -0.0423 +/-0.0399 0.0322 +/-0.0399 0.0644 pCi/g Europium-154 U -0.0258 +/-0.0461 0.0382 +/-0.0461 0.0763 pCi/g Europium-155 U 0.0319 +/-0.051 0.0305 +/-0.051 0.0609 pCi/g Lead-212 0.685 +/-0.0731 0.0187 +/-0.0731 0.0374 pCi/g Lead-214 0.622 +/-0.0775 0.0235 +/-0.0775 0.0469 pCi/g Manganese-54 U 0.0211 +/-0.0175 0.0106 +/-0.0175 0.0212 pCi/g Niobium-94 U 0.0235 +/-0.0142 0.0129 +/-0.0142 0.0258 pCi/g Potassium-40 11.2 +/-0.815 0.113 +/-0.815 0.225 pCi/g Radium-226 0.646 +/-0.0863 0.0244 +/-0.0863 0.0488 pCi/g Silver-108m U 0.000854 +/-0.015 0.0118 +/-0.015 0.0236 pCi/g Thallium-208 0.259 +/-0.0376 0.0132 +/-0.0376 0.0265 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1107 609942 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 81 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-020F Project: YANK01204 Sample ID: 180678022 Client ID: YANKOO Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.82 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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-021F 180678023 TS 12-FEB-07 14-FEB-07 Client 7.59%Project: Client ID: Vol. Recv.: YANK01204 YANK001 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 2.13 +/-0.274 0.0406 +/-0.274 0.0812 pCi/g MJHI 02/16/07 1550 610434 Americium-241 U 0.0693 +/-0.0985 0.0829 +/-0.0985 0.166 pCi/g Bismuth-212 1.48 +/-0.242 0.0825 +/-0.242 0.165 pCi/g Bismuth-214 1.77 +/-0.181 0.0213 +/-0.181 0.0427 pCi/g Cesium-134 UI 0.00 +/-0.0265 0.0151 +/-0.0265 0.0302 pCi/g Cesium-I 37 U 0.00817 +/-0.0141 0.0114 +/-0.0141 0.0228 pCi/g Cobalt-60 U 0.00316 +/-0.0135 0.0115 +/-0.0135 0.0229 pCi/g Europium-152 U -0.0436 +/-0.0408 0.0324 +/-0.0408 0.0647 pCi/g Europium-154 U 0.0464 +/-0.0477 0.0362 +/-0.0477 0.0723 pCi/g Europium-155 Ul 0.00 +/-0.0683 0.0425 +/-0.0683 0.0849 pCi/g Lead-212 1.94 +/-0.159 0.0198 +/-0.159 0.0396 pCi/g Lead-214 2.07 +/-0.183 0.0223 +/-0.183 0.0446 pCi/g Manganese-54 UI 0.00 +/-0.0151 0.0111 +/-0.0151 0.0223 pCi/g Niobium-94 U 0.0121 +/-0.010 0.0108 +/-0.010 0.0216 pCi/g Potassium-40 27.4 +/-1.68 0.0869 +/-1.68 0.174 pCi/g Radium-226 1.77 +/-0.181 0.0213 +/-0.181 0.0427 pCi/g Silver-108m U -0.00231 +/-0,0121 0.0107 +/-0.0121 0.0213 pCi/g Thallium-208 0.618 +/-0.0621 0.0113 +/-0.0621 0.0227 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1107 609942 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 83 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-021F Project: YANK01204 Sample ID: 180678023 Client ID: YANKOOI Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.84 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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-022F 180678024 TS 12-FEB-07 14-FEB-07 Client 8.06%Proiect: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.62 +/-0.225 0.0646 +/-0.225 0.129 pCi/g MJH1 02/16/07 1551 610434 Americium-241 UI 0.00 +/-0.0356 0.0273 +/-0.0356 0.0545 pCi/g Bismuth-212 1.11 +/-0.326 0.140 +/-0.326 0.279 pCi/g Bismuth-214 1.74 +/-0.202 0.0325 +/-0.202 0.065 pCi/g Cesium-134 UI 0.00 +/-0.0385 0.0237 +/-0.0385 0.0474 pCi/g Cesium-137 U 0.032 +/-0.0225 0.0206 +/-0.0225 0.0412 pCi/g Cobalt-60 U -0.00205 +/-0.0232 0.0193 +/-0.0232 0.0385 pCi/g Europium-152 U 0.0104 +/-0.065 0.0438 +/-0.065 0.0876 pCi/g Europium-154 U 0.102 +/-0.0976 0.0642 +/-0.0976 0.128 pCi/g Europium-155 U 0.0429 +/-0.0595 0.0412 +/-0.0595 0.0824 pCi/g Lead-212 1.50 +/-0.139 0.0233 +/-0.139 0.0465 pCi/g Lead-214 1.78 +/-0.175 0.0305 +/-0.175 0.0609 pCi/g Manganese-54 U 0.0146 +/-0.0331 0.0191 +/-0.0331 0.0381 pCi/g Niobium-94 U 0.0261 +/-0.0195 0.0178 +/-0.0195 0.0356 pCi/g Potassium-40 23.4 +/-1.11 0.146 +/-1.11 0.292 pCi/g Radium-226 1.74 +/-0.202 0.0325 +/-0.202 0.065 pCi/g Silver-108m U-0.000726

+/-0.0184 0.016 +/-0.0184 0.0319 pCi/g Thallium-208 0.480 +/-0.0649 0.0174 +/-0.0649 0.0347 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 02/14/07 1107 609942 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 85 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-022F Project: YANK01204 Sample ID: 180678024 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< 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.86 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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 20, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9313-0000-023F 180678025 TS 12-FEB-07 14-FEB-07 Client 12.9%Project: Client ID: Vol. Recv.: YANK01204 YANK001 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 0.668 +/-0.173 0.0768 +/-0.173 0.153 pCi/g MJH1 02/17/07 0947 610434 Americium-241 U 0.0462 +/-0.0445 0.0399 +/-0.0445 0.0798 pCi/g Bismuth-212 0.416 +/-0.259 0.167 +/-0.259 0.334 pCi/g Bismuth-214 0.750 +/-0.116 0.0505 +/-0.116 0.101 pCi/g Cesium-I 34 U 0.0389 +/-0.0348 0.0288 +/-0.0348 0.0576 pCi/g Cesium-137 4.08 +/-0.372 0.0228 +/-0.372 0.0456 pCi/g Cobalt-60 0.185 +/-0.0556 0.0196 +/-0.0556 0.0393 pCi/g Europium-152 U 0.0212 +/-0.101 0.072 +/-0.101 0.144 pCi/g Europium-154 U 0.0537 +/-0.0816 0.0646 +/-0.0816 0.129 pCi/g Europium-155 U 0.0257 +/-0.0821 0.0612 +/-0.0821 0.122 pCi/g Lead-212 0.689 +/-0.0859 0.0374 +/-0.0859 0.0747 pCi/g Lead-214 0.865 +/-0.139 0.0521 +/-0.139 0.104 pCi/g Manganese-54 U -0.0155 +/-0.0243 0.0208 +/-0.0243 0.0417 pCi/g Niobium-94 U 0.00943 +/-0.0244 0.0216 +/-0.0244 0.0431 pCi/g Potassium-40 9.66 +/-0.977 0.199 +/-0.977 0.398 pCi/g Radium-226 0.750 +/-0.116 0.0505 +/-0.116 0.101 pCi/g Silver-108m U 0.0174 +/-0.0301 0.0278 +/-0.0301 0.0555 pCi/g Thallium-208 0.209 +/-0.0586 0.0242 +/-0.0586 0.0484 pCi/g The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1107 609942 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound 87 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 20, 2007 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9313-0000-023F Project: YANK01204 Sample ID: 180678025 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B For General Chemistry and Organic analysis the target analyte was detected in the associated blank.BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.88 QUALITY CONTROL DATA 89 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Client : Connecticut Yankee Atomic Power 362 Injun Hollow Rd Report Date: February 20, 2007 Page 1 of 12 East Hampton, Connecticut Contact: Mr. Jack McCarthy Workorder:

180678 Parmname NOM Samnle Oual OC Units RPD%REC% Range Anlst Date Time Parmname NO Sample Qual Rad Alpha Spec Batch 609980 QC1201278746 Americium-241 Curium-242 Curium-243/244 QC1201278748 Americium-241 Curium-242 Curium-243/244 QC1201278745 Americium-24 I 180678001 DUP U 0.0454 Uncert: +/-0.112 TPU: +/-0.112 U 0.0291 Uncert: +/-0.077 TPU: +/-0.0771 U 0.0937 Uncert: +/-0.150 TPU: +/-0.150 LCS MB 12.0 Uncert: TPU: Uncert: TPU: 14.5 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: U 0.0346+/-0.0896+/-0.0897 U 0.0162+/-0.0645+/-0.0645 U 0.0537+/-0.106+/-0.106 14.1+/-1.28+/-2.14 U 0.0159+/-0.0633+/-0.0633 17.1+/-1.42+/-2.52 U 0.00612+/-0.0945+/-0.0945 U -0.00606+/-0.0674+/-0.0674 U -0.00959+/-0.132+/-0.132 pCi/g 27 pCi/g 57 pCi/g 54 pCi/g Curium-242 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g (0% -100%) DXH2 02/16/07 07:50 (0%- 100%)(0%- 100%)118 (75%-125%)

118 (75%-125%)

Curium-243/244 QC1201278747 Americium-241 180678001 MS Curium-242 13.6 Uncert: TPU Uncert: TPU 16.4 Uncert: TPU U 0.0454+/-0.112+/-0.112 U 0.0291+/-0.077+/-0.0771 U 0.0937+/-0.150+/-0.150 U 15.4+/-1.46+/-2.41 0.0287+/-0.076+/-0.0761 20.0+/-1.67+/-3.00 113 (75%-125%)

Curium-243/244 122 (75%-125%)

Batch 609981 QC1201278750 180678001 DUP Plutonium-238 U -0.0163 U 0.00 pCi/g 200 (0% -100%) DXH2 02/15/07 17:39 90 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

180678 Page 2 of 12 Parniname Rad Alpha Spec Batch 609981 NOM Samole Qual QC Units RPD%REC% Range AnIst Date Time Plutonium-239/240 QC1201278752 LCS Plutonium-238 Plutonium-239/240 QC1201278749 MB Plutonium-238 Plutonium-239/240 QC1201278751 180678001 MS Plutonium-238 Uncert: +/-0.0226 TPU: +/-0.0227 U 0.034 Uncert: +/-0.0666 TPU: +/-0.0667 Uncert: TPU: 12.0 Uncert: TPU: Uncert: TPU: Uncert: TPU: U -0.0163 Uncert: +/-0.0226 TPU: +/-0.0227 13.5 U 0.034 Uncert: +/-0.0666 TPU: +/-0.0667 U 2.56 Uncert: +/-5.82 TPU: +/-5.83+/-0.0559+/-0.0559 U 0.122+/-0.127+/-0.128 U 0.048+/-0.0767+/-0.0769 11.9+/-1.12+/-1.79 U -0.00732+/-0.0143+/-0.0144 U 0.0537+/-0.0858+/-0.086 pCi/g 113 (0%- 100%)(75%-125%)

pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g 99 (75%-125%)

U 0.0231+/-0.0612+/-0.0612 15.1+/-1.33+/-2.22 (75%-125%)

Plutonium-239/240 112 (75%-125%)

Batch 609982 QC1201278754 180678001 DUP Plutonium-241 QC1201278756 LCS Plutonium-241 QC1201278753 MB Plutonium-241 QC1201278755 180678001 MS Plutonium-241 Rad Gamma Spec Batch 610422 QC1201279709 180678001 DUP Actinium-228 U -2.4+/-6.14+/-6.14 pCi/g 0 (0% -100%) DXH2 02/18/07 16:41 136 Uncert: TPU: Uncert: TPU: 142 U Uncert: TPU: 126+/-12.0+/-17.5 U -4.01+/-6.15+/-6.15 pCi/g pCi/g pCi/g 92 (75%-125%)

02/18/07 17:14 02/18/07 16:25 02/18/07 16:57 2.56+/-5.82+/-5.83 138+/-14.2+/-20.3 98 (75%-125%)

0.721+/-0.122 Uncert: 0.759+/-0.176+/-0.176 pCi/g 5 (0% -100%) MJHI 02/16/07 09:47 91 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

180678 Parmname Rad Gamma Spec Batch 610422 Page 3 of 12 REC% Range Anist Date Time NOM Sample Qual OC Units RPD %Americium-241 Bismuth-212 Bismuth-214 Cesium- 134 Cesium- 137 Cobalt-60 Europium-152 Europium-154 Europium-155 TPU: +/-0.122 U -0.0663 Uncert: +/-0.0531 TPU: +/-0.0531 0.432 Uncert: +/-0.164 TPU: +/-0.164 0.574 Uncert: +/-0.0719 TPU: +/-0.0719 UI 0.00 Uncert: +/-0.0192 TPU: +/-0.0192 U 0.0153 Uncert: +/-0.0234 TPU: +/-0.0234 U -0.00235 Uncert: +/-0.0126 TPU: +/-0.0126 U 0.00818 Uncert: +/-0.0419 TPU: +/-0.0419 U -0.0176 Uncert: +/-0.0412 TPU: +/-0.0412 U 0.0134 Uncert: +/-0.0489 TPU: +/-0.0489 0.715 Uncert: +/-0.0701 TPU: +/-0.0701 0.603 Uncert: +/-0.076 TPU: +/-0.076 U 0.0114 Uncert: +/-0.0143 TPU: +/-0.0143 U 0.00106 Uncert: +/-0.0121 TPU: +/-0.0121 10.7 Uncert: +/-0.887 TPU: +/-0.887 0.574 Uncert: +/-0.0719 TPU: +/-0.0719 U -0.00124 Uncert: +/-0.0112 U 0.0213+/-0.0371+/-0.0371 U 0.222+/-0.223+/-0.223 0.536+/-0.111+/-0.111 U 0.0241+/-0.0319+/-0.0319 U 0.0246+/-0.0294+/-0.0294 U 0.00162+/-0.029+/-0.029 U 0.0212+/-0.0976+/-0.0976 U -0.00692+/-0.0875+/-0.0875 UT 0.00+/-0.077+/-0.077 0.651+/-0.0821+/-0.0821 0.596+/-0.106+/-0.106 U 0.0115+/-0.0242+/-0.0242 U -0.00616+/-0.0237+/-0.0237 10.3+/-1.07+/-1.07 0.536+/-0.111+/-0.111 U -0.0126+/-0.0212 pCi/g 389 pCi/g 64 pCi/g 7 pCi/g 37 pCi/g 47 pCi/g 1100 pCi/g 89 pCi/g 87 pCi/g 165 pCi/g 9 pCi/g 1 pCi/g 1 pCi/g 283 pCi/g 4 pCi/g 7 pCi/g 164 (0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)(0% -20%)(0% -20%)(0%- 100%)(0%- 100%)(0% -20%)(0%- 100%)(0%- 100%)Lead-212 Lead-214 Manganese-54 Niobium-94 Potassium-40 Radium-226 Silver-108m 92 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

180678 Page 4 of 12 REC% Range AnIst Date Time Parmname NOM Sample Oual QC Units RPD%Rad Gamma Spec Batch 610422 Thallium-208 QC1201279710 Actinium-228 Americium-241 Bismuth-212 Bismuth-214 Cesium-134 Cesium-137 Cobalt-60 Europium-152 Europium-154 Europium-155 TPU: +/-0.0112 0.229 Uncert: +/-0.0329 TPU: +/-0.0329+/-0.0212 0.241+/-0.0574+/-0.0574 pCi/g 5 (0%- 100%)LCS Uncert: TPU: 23.4 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: 9.48 Uncert: TPU: 13.6 Uncen: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: U 0.0713+/-0.589+/-0.589 25.7+/-3.10+/-3.10 U -0.288+/-1.03+/-1.03 U -0.0122+/-0.235+/-0.235 U -0.0115+/-0.155+/-0.155 10.2+/-0.902+/-0.902 15.2+/-1.18+/-1.18 U -0.285+/-0.303+/-0.303 U -0.0412+/-0.269+/-0.269 U -0.241+/-0.318+/-0.318 U 0.0806+/-0.217+/-0.217 U -0.254+/-0.224+/-0.224 U -0.0372+/-0.135+/-0.135 U -0.00885+/-0.117+/-0.117 U 0.324 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g 02/16/07 09:52 110 (75%-125%)

108 (75%-125%)

112 (75%-125%)

Lead-212 Lead-214 Manganese-54 Niobium-94 Potassium-40 93 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

180678 Page 5 of 12 Parmname Rad Gamma Spec Batch 610422 NOM Sample Qual QC Units RPD%REC% Range Anist Date Time Radium-226 Silver- 108m Thallium-208 QC 1201279708 Actinium-228 Americium-241 Bismuth-212 Bismuth-214 Cesium-134 Cesium-137 Cobalt-60 Europium-152 Europium-154 Europium-155 MB Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU:+/-1.03+/-1.03 U -0.0122+/-0.235+/-0.235 U -0.00235+/-0.119+/-0.119 U 0.0489+/-0.136+/-0.136 U 0.0551+/-0.0413+/-0.0413 U 0.0225+/-0.0179+/-0.0179 U -0.102+/-0.0976+/-0.0976 U -0.0408+/-0.0283+/-0.0283 U 0.00448+/-0.0163+/-0.0163 U 0.0156+/-0.0175+/-0.0175 U 0.000854+/-0.0122+/-0.0122 U -0.00243+/-0.0336+/-0.0336 U 0.00492+/-0.0302+/-0.0302 U 0.0385+/-0.0301+/-0.0301 U 0.0109+/-0.0275+/-0.0275 U -0.00214+/-0.0274+/-0.0274 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g (75%-125%)

02/16/07 09:47 Lead-212 Lead-214 94 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

180678 Parmname Rad Gamma Spec Batch 610422 Page 6 of 12 REC % Range AnIst NOM Sample Qual QC Units RPD%Date Time Manganese-54 Niobium-94 Potassium-40 Radium-226 Silver- 108m Thallium-208 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Batch 610434 QC1201279730 Actinium-228 Americium-241 Bismuth-212 Bismuth-214 Cesium-134 Cesium-137 Cobalt-60 Europium-152 Europium-154 Europium-155 180678021 DUP 1.08 Uncert: +/-0.160 TPU: +/-0.160 u 0.0528 Uncert: +/-0.0721 TPU: +/-0.0721 0.686 Uncert: +/-0.146 TPU: +/-0.146 0.989 Uncert: +/-0.102 TPU: +/-0.102 UI 0.00 Uncert: +/-0.0166 TPU: +/-0.0166 0.0919 Uncert: +/-0.0202 TPU: +/-0.0202 u 0.0246 Uncert: +/-0.0164 TPU: +/-0.0164 u -0.0312 Uncert: +/-0.0397 TPU: +/-0.0397 u -0.0242 Uncert: +/-0.0405 TPU: +/-0.0405 UI 0.00 U 0.0127+/-0.0121+/-0.0121 U 0.0125+/-0.0121+/-0.0121 U 0.0885+/-0.147+/-0.147 U -0.0408+/-0.0283+/-0.0283 U 0.0107+/-0.0203+/-0.0203 U -0.0161+/-0.0151+/-0.0151 1.21+/-0.255+/-0.255 UI 0.00+/-0.045+/-0.045 0.986+/-0.388+/-0.388 1.04+/-0.152+/-0.152 UI 0.00+/-0.0495+/-0.0495 0.125+/-0.0489+/-0.0489 U 0.0287+/-0.0368+/-0.0368 U -0.0161+/-0.0777+/-0.0777 U -0.0527+/-0.112+/-0.112 U 0.0837 pCi/g 11 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g 58 pCi/g 36 pCi/g 5 pCi/g 59 pCi/g 31 pCi/g 15 pCi/g 64 pCi/g 74 pCi/g 7 (0% -100%) MJH1 02/17/07 09:49 (0%- 100%)(0%- 100%)(0%-20%)(0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)95 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

180678 Page 7 of 12 REC% Rane AnIst Date Time Pnrmnlnme NIbM Samnle Oanil OC U~nits RPD %Rad Gamma Spec Batch 610434 Lead-212 Lead-214 Manganese-54 Niobium-94 Potassium-40 Radium-226 Silver- 108m Thallium-208 QC1201279731 Actinium-228 Americium-241 Uncert: +/-0.0467 TPU: +/-0.0467 1.10 Uncert: +/-0.0929 TPU: +/-0.0929 1.05 Uncert: +/-0.100 TPU: +/-0.100 UI 0.00 Uncert: +/-0.0124 TPU: +/-0.0124 U 0.0042 Uncert: +/-0.0113 TPU: +/-0.0113 17.7 Uncert: +/-1.29 TPU: +/-1.29 0.989 Uncert: +/-0.102 TPU: +/-0.102 U -0.00104 Uncert: +/-0.0105 TPU: +/-0.0105 0.339 Uncert: +/-0.0388 TPU: +/-0.0388+/-0.0718+/-0.0718 1.09+/-0.117+/-0.117 1.04+/-0.138+/-0.138 U -0.00584+/-0.0299+/-0.0299 U 0.00909+/-0.0277+/-0.0277 17.0+/-1.38+/-1.38 1.04+/-0.152+/-0.152 U -0.0152+/-0.0249+/-0.0249 0.368+/-0.069+/-0.069 U -0.119+/-0.621+/-0.621 25.0+/-3.00+/-3.00 U 0.752+/-0.954+/-0.954 U -0.199+/-0.234+/-0.234 U -0.0646+/-0.145+/-0.145 9.60+/-0.869+/-0.869 14.2+/-1.12+/-1.12 pCi/g 1 pCi/g 1 pCi/g 298 pCi/g 74 pCi/g 4 pCi/g 5 pCi/g 174 pCi/g 8 (0% -20%)(0% -20%)(0%- 100%)(0%- 100%)(0% -20%)(0%- 100%)(0%- 100%)(0%- 100%)LCS Bismuth-212 Bismuth-214 Cesium-134 Cesium-137 Cobalt-60 Uncert: TPU: 23.4 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: 9.48 Uncert: TPU: 13.6 Uncert: TPU: pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g 107 (75%-125%)

02/17/07 09:50 101 (75%-125%)

104 (75%-125%)

96 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

180678 Parnmame Rad Gamma Spec.Batch 610434 Page 8 of 12 REC% Range Anist Date Time NOM Sample _Qual QC Units RPD%Europium-152 Europium-154 Europium-155 Lead-212 Lead-214 Manganese-54 Niobium-94 Potassium-40 Radium-226 Silver- 108m Thallium-208 QC1201279729 Actinium-228 Americium-241 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: U -0.0807+/-0.310+/-0.310 U 0.129+/-0.281+/-0.281 U -0.247+/-0.306+/-0.306 U 0.0258+/-0.172+/-0.172 U -0.0043+/-0.214+/-0.214 U -0.0238+/-0.134+/-0.134 U -0.0149+/-0.113+/-0.113 U -0.22+/-0.911+/-0.911 U -0.199+/-0.234+/-0.234 U 0.0218+/-0.132+/-0.132 U -0.0258+/-0.122+/-0.122 U -0.0326+/-0.0397+/-0.0397 U -0.00188+/-0.0638+/-0.0638 U 0.00306+/-0.0833+/-0.0833 U 0.0014+/-0.0251+/-0.0251 U -0.0113+/-0.011 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g (75%-125%)

MB 02/17/07 09:48 Bismuth-212 Bismuth-214 Cesium- 134 97 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

180678 Parmname Rad Gamma Spec Batch 610434 Page 9 of 12 Range AnIst Date Time NOM Sample Qual QC Units RPD% REC%TPU: Cesium- 137 Cobalt-60 Europium-152 Europium-154 Europium-155 Lead-212 Lead-214 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU:+/-0.011 U -0.00371+/-0.00893

+/-0.00893 U -0.00323+/-0.0084+/-0.0084 U 9.910E-05+/-0.0417+/-0.0417 U 0.00365+/-0.025+/-0.025 U -0.011+/-0.0305+/-0.0305 U -0.00287+/-0.0218+/-0.0218 U 0.0168+/-0.0404+/-0.0404 U 0.00764+/-0.00738

+/-0.00738 U 0.0032+/-0.0101+/-0.0101 U -0.0316+/-0.128+/-0.128 U 0.0014+/-0.0251+/-0.0251 U 0.00912+/-0.00808

+/-0.00808 U 0.0154+/-0.0167+/-0.0167 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g Manganese-54 Niobium-94 Potassium-40 Radium-226 Silver-108m Thallium-208 Rad Gas Flow Batch 609960 QC1201278680 180678002 DUP Strontium-90 QC1201278682 LCS Strontium-90 U 0.00644 Uncert: +/-0.018 TPU: +/-0.018 U 0.00719+/-0.0182+/-0.0182 pCi/g 0 (0% -100%) KSD1 02/16/07 19:59 1.66 1.63 pCi/g 99 (75%-125%)

02/16/07 19:59 98 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

180678 Page 10 of 12 REC% Range AnIst Date Time Parmname Rad Gas Flow Batch NOM Sample Oual OC Units RPD %609960 QC1201278679 MB Strontium-90 QC1201278681 180678002 MS Strontium-90 Rad Liquid Scintillation Batch 609954 QC1201278652 180678001 DUP Technetium-99 QC1201278654 LCS Technetium-99 QC1201278651 MB Technetium-99 QC1201278653 180678001 MS Technetium-99 Uncert: TPU: Uncert: TPU:+/-0.0811+/-0.0948 U 0.00377+/-0.0164+/-0.0164 pCi/g pCi/g 02/16/07 19:59 02/16/07 19:59 3.19 U Uncert: TPU: 0.00644+/-0.018+/-0.018 3.02+/-0.162+/-0.177 95 (75%-125%)

U 0.219 Uncert: +/-0.255 TPU: +/-0.255 12.8 Uncert: TPU: Uncert: TPU: 12.8 U Uncert: TPU: 0.219+/-0.255+/-0.255 Batch 609955 U -0.09+/-0.250+/-0.250 12.2+/-0.504+/-0.588 U -0.199+/-0.163+/-0.163 12.2+/-0.541+/-0.620 U 0.540+/-0.932+/-0.932 5.37+/-0.712+/-0.718 U 0.0278+/-0.432+/-0.432 20.5+/-2.64+/-2.66 pCi/g 0 (0% -100%) SLN1 pCi/g pCi/g pCi/g 95 (75%-125%)

95 (75%-125%)

02/20/07 11:13 02/20/07 09:52 02/20/07 08:34 02/20/07 09:36 QC1201278656 180678001 DUP Tritium QC1201278658 LCS Tritium QC1201278655 MB Tritium QC1201278657 180678001 MS Tritium U 0.751 Uncert: +/-0.922 TPU: +/-0.923 6.41 Uncert: TPU: Uncert: TPU: pCi/g 0 (0% -100%) ,kXD2 pCi/g pCi/g pCi/g 84 (75%-125%)

02/15/07 17:24 02/15/07 18:27 02/15/07 16:52 02/15/07 17:56 23.4 U Uncert: TPU: 0.751+/-0.922+/-0.923 88 (75%-125%)

Batch 609956 QC1201278660 180678001 DUP Nickel-63 U -6.57 U -0.608 pCi/g 0 (0% -100%) \IXP1 02/16/07 15:22 99 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

180678 Page 11 of 12 REC% Range AnIst Date Time Parmna me NOM Samnle Oual OC Units RPD %Parn ame NOM Sample Oual OC Units RPD%Rad Liquid Scintillation Batch 609956 QC1201278662 LCS Nickel-63 QC1201278659 MB Nickel-63 QC1201278661 180678001 MS Nickel-63 Uncert: TPU: 540 Uncert: TPU: Uncert: TPU: 574 U Uncert: TPU:+/-11.5+/-11.5+/-10.1+/-10.1 431+/-24.0+/-28.4 U 1.91+/-10.7+/-10.7 pCilg pCilg pCilg 80 (75%-125%)

02/16/07 15:55 02/16/07 15:06 02/16/07 15:39-6.57+1-11.5+1-11.5 Batch 609957 QC1201278664 180678001 DUP Carbon-14 QC1201278666 LCS Carbon- 14 QC1201278663 MB Carbon-14 QC1201278665 180678001 MS Carbon-14 U 0.0162 Uncert: +/-0.108 TPU: +/-0.108 U 501+/-22.4+/-28.9 0.00861+/-0.110+/-0.110 6.46+/-0.203+/-0.226 87 (75%-125%)

pCi/g 0 (0% -100%) 'NXD2 Batch 609958 QC1201278668 180678001 DUP Iron-55 QC1201278670 LCS Iron-55 QC1201278667 MB Iron-55 QC1201278669 180678001 MS Iron-55 6.96 Uncert: TPU: Uncert: TPU: 7.18 U Uncert: TPU: U Uncert: TPU: 1170 Uncert: TPU: Uncert: TPU: 1240 U Uncert: TPU: U 0.0281+/-0.108+/-0.108 0.0162+/-0.108+/-0.108 6.77+/-0.209+/-0.234 pCi/g pCi/g pCi/g 93 (75%-125%)

02/15/07 19:26 02/15/07 21:31 02/15/07 18:23 02/15/07 20:29 94 (75%-125%)

2.70+/-34.6+/-34.6 U 22.2+/-30.7+/-30.7 1120+/-56.3+/-84.7 U 8.39+/-31.5+/-31.5 pCilg 0 (0% -100%) VIXP1 pCi/g pCi/g pCi/g 96 (75%-125%)

02/17/07 08:19 02/17/07 08:51 02/17/07 08:02 02/17/07 08:35 2.70+/-34.6+/-34.6 1280+/-60.3+/-94.9 103 (75%-125%)

100 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

180678 Page 12 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time 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.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more.** Indicates analyte is a surrogate compound.A The Relative Percent Difference (RPD) obtained from the sample duplicate (DUP) is evaluated against the acceptence criteria when the sample is greater than five times (5X) the contract required detection limit (RL). In cases where either the sample or duplicate value is less than 5X the RL, a control limit of +/- the RL is used to evaluate the DUP result.For PS, PSD, and SDILT results, the values listed are the measured amounts, not final concentrations.

Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary.101 General Narrative 1 General Narrative for Connecticut Yankee Atomic Power Co.Work Order: 181192 SDG: MSR#07-0077 February 26, 2007 Laboratory Identification:

GEL Laboratories LLC 2040 Savage Road Charleston, South Carolina 29407 (843) 556-8171 Summary Sample receipt The sample arrived at GEL Laboratories LLC, Charleston, South Carolina on February 14, 2007 for analysis.

Shipping container temperature was checked, documented, and within specifications.

The sample was 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 sample: Laboratory Sample Identification Description 181192001 9313-0000-023F Items of Note Sample was reanalyzed per client request.Case Narrative Sample analyses were conducted using methodology as outlined in GEL Laboratories, LLC (GEL)Standard Operating Procedures.

Any technical or administrative problems during analysis, data review, and reduction are contained in the analytical case narratives in the enclosed data package.Analytical Request One soil sample was reanalyzed for Strontium-90.

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.

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

Project Manager 3 List of current GEL Certifications as of 26 February 2007 State Certification Alaska UST-062 Arizona AZ0668 Arkansas 88-0651 CLIA 42D0904046 California 01151CA Colorado GenEngLabs Connecticut PH-0169 Dept. of Navy NFESC 413 EPA WG-15J Florida/NELAP E87156 Georgia E87156 (FL/NELAP)

Hawaii N/A Idaho N/A Illinois 200029 Indiana C-SC-01 Kansas E-10332 Kentucky 90129 Louisiana 03046 Maryland 270 Massachusetts M-SCO12 Michigan 9903 Nevada SCI2 New Jersey SCO02 New Mexico FL NELAP E87156 New York 11501 North Carolina 233 North Carolina Drinking W 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania 68-00485 South Carolina 10120001/10585001/10120002 Tennessee 02934 Texas TX213-2006A Texas NELAP T104704235-06-TX U.S. Dept. of Agriculture S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont VT87156 Virginia 00151 Washington C1641 4 Chain of Custody and Supporting Documentation 5

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-002 Connecticut Yankee Atomic Power Company Chain of Custody Form 362 Injun Hollow Road, East Hampton, CT 06424 No. 2007-00037 860-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: Comments: Jack McCarthy 860-267-3924 Media Sample Container Code Type Size-Analytical Lab (Name, City, State): Code &Type General Engineering Laboratories Code 2040 Savage Road W N ~- c Charleston, SC 29407 ATT: Cheryl Jones (843-556-8171)

Priority:

[] 30 D. [] 15 D. Z 7 D.Other: _Sample Designation Date Time 1 4 a.1 Comment, Preservation Lab Sample ID 9313-0000-019F 02-12-07 1338 TS G BP X 9313-0000-020F 02-12-07 1339 TS G BP X 9313-0000-021F 02-12-07 1348 TS G BP X 9313-0000-022F 02-12-07 1349 TS G BP X 9313-0000-023F 02-12-07 1350 TS G BP X NOTES: PO #: 002332 MSR #: 07-0077 0 LTP QA E] Radwaste QA LI Non QA Samples Shipped Via: Internal Container Z Fed Ex Temp.: 'o Deg. C[]EuPs El Hand CUi, 3 dy Sealed?&)N 1) Relinqui By Date/Time

2) Received By Date/Time Custody Seal Intact?)- T-c.c -) 4 100 El Other 3) Relinquished By Date/Time

4) Received By Date/Time B N Bill of Lading #5) Relinquished By Date/Time

6) Received By Date/Time Connecticut Yankee Statement of Work for Analytical Lab Services-CY-ISC-SOW-001 Figure 1. Sample Check;in List..CY-1sc-sow-o01 DatelTim Received:

& --) "i " ) I r,.O()SDO#:- At 2 S7-~c'DO W o rk O rd e r Nleum b e ,r_. -S '6_ _ __4_7_ _._ _"_+_... ._" _" S* --' -+' ' : " -+. , , D .-C W 3 7 Shipping Ccbtainer ID:.'7%La S"C-' 14 ' b.O Chain of Custdy*# .7- _rd t12. 4 b7- tY'Y3()1. CustodySeals ouishipping container intact; Yes [ ]2. Custody Seals dated and signed? Yes [,io [(]3. Chain-of-Custody record present? " Yes [qo I]4. Cooler "eperature

5. : Vermiculitelpacking materials is: Wet I[ Dry t+I r ) ..6.2 Number ofsamples in shipping containCe " I d LI 7- Sample holding times exceeded?

Yes [)No X. Sape have:.*.___ýcwody, Scab approprate sample labels : --9. Samples arci_,Zi lgood condition

""eakin.....-_ broken ---"__have air bubbles 10. Were any anomaliesidenti.fied in sample cYes [No 11. .Descripmion of anomalies (include sample numbers):*Sample Custouan/Labaoj.y.

Telephonedto:

0.- ....-., ~~~ ~ P' ------- ..o0* ' y," .-.." 7 SAMPLE RECEIPT & REVIEW FORM PM use only Clet: ()rIer (A ~,-Ic~. SDGIARCOCIWork Order: Date Received:

PM(A) Review (ensure non-conforming items are resolved prior to signing): R e e ve ,y: .Sample Receipt Criteria 44 Z0 Comments/Qualifiers (Required for Non-Conforming Items)Shipping containers received Circle Applicable:

seals broken damaged container leaking container other (describe) intact and sealed?Samples requiring cold Circle Coolant # ice bags blue ice dry ice (ES> other describc)2 preservation within (4 +/- 2 C)?Record preservation method.Chain of custody documents ,iincluded with shipment? , i 4 Sample containers intact and Circle Applicable:

seals broken damaged container leaking container other (describe) sealed? _________________________

[Samples requiring chemical Sample D's. containers affected and observed pH:_ preservation at proper PH?6VOA vials free of headspace Sample ID's and containers affected: 6 (defined as < 6mm bubble)?Are Encore containers present?7 (If yes, immediately deliver to JVAlboratory Samples received within holding ld's and tests affected;time?Sample ID's on COC match ID's Sample ID's and containers affected: on bottles?Date & time on COC match date Slample i's affected: 10& time on bottles? _1 Number of containers received Sample ID's affected match number indicated on COC?COC form is properly signed in 12 relinquished/received sections?

_//Air Bill ,Tracking

1. 's, &14 Additional Comments ý q Y X 'to 8 o V RSO RAD Receipt #Suspected Hazard Information

~ *If > x2 area background is observed on samples identified as "non-u ; e f~ regulated/non-radioactive", contact the Radiation Safety group for further__investigation.

A Radiological Classification?

Maximum Counts Observed-:

PCB Regu lat.ed Shipped as DO Hazardous C Material?

If yes, contact Waste ,/ Hazard Class Shipped: Manager or ESH Manager.UN#:

M Regulated as aForeign Soil?PM (or PMA) review of Hazard classification:IntasDe:R V 7 8 Additional analysis

Subject:

Additional analysis From: "John McCarthy" <McCarthy@

CYAPCO.com>

Date: Thu, 22 Feb 2007 08:17:33 -0500 To: "Cheryl Jones" <cj @gel.corn>

CC: "Clyde Newson" <Newson@CYAPCO.com>, "Arthur L. Hammond"<Hammond @ CYAPCO.com>

Cheryl, Please analyze the following sample for Sr-90 under a 7 day TAT MSR 07-0077 Lab ID 180678025 CY ID 9313-0000-023F Thank you Jack 2/22/2007 10:44 A 9 Data Review Qualifier Definitions 10 Data Review Qualifier DefinitionB 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 A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank B Metals-Either presence of analyte detected in the associated blank, or MDL/IDL < sample value < PQL BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample d 5-day BOD-The 2:1 depletion requirement was not met for this sample E Organics-Concentration of the target analyte exceeds the instrument calibration range E Metals-%difference of sample and SD is >10%. Sample concentration must meet flagging criteria H Analytical holding time was exceeded h Preparation or preservation holding time was exceeded J Value is estimated N Metals-The Matrix spike sample recovery is not within specified control limits N Organics-Presumptive evidence based on mass spectral library search to make a tentative identification of the analyte (TIC). Quantitation is based on nearest internal standard response factor N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the reporting limit UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound Z Paint Filter Test-Particulates passed through the filter, however no free liquids were observed.GEL Laboratories LLC PO Box 30712 Charleston, SC 29417 2040 Savage Road Charleston, SC 29407 P 843.556.8171 F 843.765.1170 www.gol.com 11 RADIOLOGICAL ANALYSIS 12 Radiochemistry Case Narrative Connecticut Yankee Atomic Power Co. (YANK)Work Order 181192 Method/Analysis Information Product: GFPC, Sr90, solid-ALL FSS Analytical Method: EPA 905.0 Modified Prep Method: Dry Soil Prep GL-RAD-A-021 Method: Analytical Batch Number: Prep Batch Number: Dry Soil Prep GL-RAD-A-021 Batch Number: Ash Soil Prep Dry Soil Prep 612240 611968 611967 Sample ID 181192001 1201284001 1201284002 1201284003 1201284004 Client ID 9313-0000-023F Method Blank (MB)181192001(9313-0000-023F)

Sample Duplicate (DUP)181192001(9313-0000-023F)

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

Calibration Information All initial and continuing calibration requirements have been met.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 Ouality Control (0C) Information:

Blank Information The blank volume is representative of the sample volume in this batch.Designated QC The following sample was used for QC: 181192001 (9313-0000-023F).

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 1201284002 (9313-0000-023F) was recounted due to high MDA.Chemical Recoveries All chemical recoveries meet the required acceptance limits for this sample set.Miscellaneous Information:

NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents.

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.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.14 The following data validator verified the information presented in this case narrative:

Reviewer/Date: 15 SAMPLE DATA

SUMMARY

16 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Report for YANK001 Connecticut Yankee Atomic Power Co.Client SDG: MSR#07-0077 GEL Work Order: 181192 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.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 17 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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 28, 2007 Client Sample ID: 9313-0000-023F Project: YANK01204 Sample ID: 181192001 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 12-FEB-07 Receive Date: 14-FEB-07 Collector:

Client Moisture:

12.9%Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1%Rad Gas Flow Proportional Counting GFPC, Sr90, solid-ALL FSS Strontium-90 U 0.0203 +/-0.0235 0.0165 +/-0.0235 0.0393 pCi/g KSDI 02/26/07 2056 612240 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 02/14/07 1107 611967 The following Analytical Methods were performed Method Description I EPA 905.0 Modified Surrogate/Tracer recovery Test Recovery%

Acceptable Limits Strontium-90 Carrier/Tracer Recovery GFPC, Sr90, solid-ALL FSS GFPC, S90, solid-ALL FSS 80 80 (25%-125%)

(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 18 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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: February 28, 2007 Client Sample ID: Sample ID: 9313-0000-023F 181192001 Project: Client ID: Vol. Recv.: YANKO01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch 1A R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.19 QUALITY CONTROL DATA I , 20 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary;lient : Connecticut Yankee Atomic Power 362 Injun Hollow Rd Reoort Date: February 28, 2007 Page 1 of 2 East Hampton, Connecticut

'ontact: Mr. Jack McCarthy Vorkorder:

181192 armname ad Gas Flow atch NOM Sample Qual QC Units RPD%REC% Range Anlst Date Time 612240 QC1201284002 181192001 DUP trontium-90 QC1201284004 LCS trontium-90 U 0.0203 Uncert: +/-0.0235 TPU: +/-0.0235 U 0.0135+/-0.0262+/-0.0262 1.60+/-0.116+/-0.125 pCi/g 0 (0% -100%) KSD1 QC1201284001 MB trontium-90 1.57 Uncert: TPU: Uncert: TPU: 5.28 U Uncert: TPU: U 0.00345+/-0.0205+/-0.0205 pCi/g pCi/g pCi/g 102 (75%-125%)

02/27/07 16:32 02/26/07 22:11 02/26/07 20:56 02/26/07 20:57 QC1201284003 181192001 MS trontium-90 0.0203+/-0.0235+/-0.0235 5.53+/-0.403+/-0.436 105 (75%-125%)

'4otes: the Qualifiers in this report are defined as follows:*A B BD C D H J N/A ND R U UI X Y A h 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 The TIC is a suspected aldol-condensation product For General Chemistry and Organic analysis the target analyte was detected in the associated blank.Results are either below the MDC or tracer recovery is low Analyte has been confirmed by GC/MS analysis Results are reported from a diluted aliquot of the sample Analytical holding time was exceeded Value is estimated Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more 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.Gamma Spectroscopy--Uncertain identification Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier QC Samples were not spiked with this compound RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL Preparation or preservation holding time was exceeded 21 GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Vorkorder:

181192 Page 2 of 2 armname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time UA indicates that spike recovery limits do not apply when sample concentration exceeds spike cone. by a factor of 4 or more.* Indicates analyte is a surrogate compound.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 equirements of the NELAC standard unless qualified on the QC Summary.22 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD ATTACHMENT 4 (DQA RESULTS)Revision 0 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD ATTACHMENT 4A (PRELIMINARY DATA REVIEW)Revision 0 PRELIMINARY DATA REVIEW FORM Survey Unit: Survey Unit Name: Classification

Survey Media: Type of Survey: Type of Measurement:

Number of Measurements:

9313-0000 Central Site Grounds 2 Soil Final Status Survey Radionuclide Specific 15 BASIC STATISTICAL QUANTITIES Cs-137 Co-60 Operational DCGL (pCi/g): 4.75E+00 2.29E+00 Minimum Value: -1.09E-02

-1.10E-02 Maximum Value: 1.33E-01 7.1 IE-02 Mean: 2.89E-02 7.43E-03 Median: 1.67E-02 2.24E-03 Standard Deviation:

3.76E-02 2.03E-02 Sample Identification 9313-0000-001F 9313-0000-002F 9313-0000-003F 9313-0000-004F 9313-0000-005F 9313-0000-006F 9313-0000-007F 9313-0000-008F Reported Results Cs-137 Concentration (pCi/g)1.33E-01 1.53E-02 2.35E-02 5.97E-02 1.54E-02-1.09E-02-5.5 1E-03 1.67E-02 Co-60 Concentration Detect? (pCi/g)+ 4.11E-03-2.35E-03+ 7.11E-02+ 1.90E-02-9.96E-03-1. 1OE-02 4.57E-03+ -2.3 1E-03 Fraction of Detect? Target Level 0.030 0.002+ 0.036 0.021-0.001-0.007 0.001 0.003 Submitted by/IDate I of 2 PRELIMINARY DATA REVIEW FORM Sample Identification 9313-0000-009F 9313-0000-01OF 9313-0000-01 IF 9313-0000-012F 9313-00.00-013F 9313-0000-014F 9313-0000-015F Reported Results Cs-137 Concentration (pCi/g)-1.37E-03 0.OOE+00 2.79E-02 2.96E-02 7.2 1E-02 6.62E-03 5.22E-02 Co-60 Concentration (pCi/g)Detect?Fraction of Detect? Target Level 3.40E-03-9.30E-04+ 2.62E-03+ 2.24E-03+ 2.95E-02 1.39E-03+ 0.OOE+00 0.001 0.000 0.007 0.007 0.028 0.002 0.011+Submitted by/Date 2 2 of 2 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD ATTACHMENT 4B (GRAPHICAL REPRESENTATION OF DATA)Revision 0 QUANTILE PLOT FOR CESIUM-137 Survey Unit: 9313-0000 Survey Unit Name: Central Site Grounds Mean: 2.89E-02 pCi/g Quantile Plot For Cs-I37 1.55E-01 -1.35E-01 1.15E-01 9.50E-02 7.50E-02 5.50E-02 3.50E-02 1.50E-02-5.OOE-03-2.50E-02 0)C.2 0 20 40 60 80 Percentage 100 Cs-137-1.09E-02-5.5 1E-03-1.37E-03 0.OOE+00 6.62E-03 1.53E-02 1.54E-02 1.67E-02 2.35E-02 2.79E-02 2.96E-02 5.22E-02 5.97E-02 7.21 E-02 Rank 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Percentage 3%10%17%23%30%37%43%50%57%63%70%77%83%90%97%1.33L-01 Submitted by/Date Reviewed by/Date 15 FREQUENCY PLOT FOR CESIUM-137 Survey Unit: 9313-0000 Survey Unit Name: Central Site Grounds Mean: 2.89E-02 pCi/g Frequency Plot For Cs-137 C.)U-8 7 6 5 4 3 2 0-1.09E-02 2.24E-02 5.56E-02 8.89E-02 1.22E-01 1.55E-01 Upper End Value (pCi/g)Upper End Observation Observation Value Frequency Frequency-1.09E-02 1 7%2.24E-02 7 47%5.56E-02 -4 27%8.89E-02 2 13%1.22E-01 0 0%1.55E-01 1 7%Total: 15 100%Kiln 6-,-3h/7 /oA Submitted by/Dat -Reviewed by/Date 1 of 1 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD ATTACHMENT 4C (SIGN TEST)Revision 0 Connecticut Yankee Decommissioning Project Health Physics Procedure GPP-GGGR-R5121-001 Attachment B, Rev. CY-001 MAJOR Sign Test Calculation Sheet For Multiple Radionuclides Survey Area Number: 9313-0000 Survey Area Name: Central Site Grounds Classification:

2 TYPE I (a error): 0.05 N: 15 Radionuclides:

Cs-137 Co-60 DCGL: 4.75E+00 2.29E+00 Results I" Results 2"d Results 3rd Results 4t' Results 5 th Weighted Sum I -W, Sign Radionuclide Radionuclide Radionuclide Radionuclide Radionuclide (W 5)(pCi/g) (pCi/g) (pCi/g) (pCi/g) (pCi/g)1.33E-01 4.11E-03 0.030 0.970 +1.53E-02 -2.35E-03 0.002 0.998 +2.35E-02 7.11E-02 0.036 0.964 +5.97E-02 1.90E-02 0.021 0.979 +1.54E-02 -9.96E-03

-0.001 1.001 +-1.09E-02

-1.10E-02

-0.007 1.007 +-5.5 1E-03 4.57E-03 0.001 0.999 +1.67E-02 -2.3 1E-03 0.003 0.997 +-1.37E-03 3.40E-03 0.001 0.999 +0.OOE+00 -9.30E-04 0.000 1.000 +2.79E-02 2.62E-03 0.007 0.993 +2.96E-02 2.24E-03 0.007 0.993 +7.21E-02 2.95E-02 0.028 0.972 +6.62E-03 1.39E-03 0.002 0.998 +5.22E-02 0.OOE+00 0.011 0.989 +Number of positive differences (S+): 15 Critical Value: 11 Survey Unit Meets Acceptance Criterion Performed by: j'ic.6,t-Independent Review by: Date: "//? "'4,,ý & a Date: _________0

__Page 1 of 1 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD ATTACHMENT 4D (QC SPLIT RESULTS)Revision 0 Health Physics Procedure 24265-000-GPP-GGGR-R5124-000-Rev.CY-000 Attachment A HelhPyisPoeue22500GPGGRR 2-0-e.Y00Atcmn Split Sample Assessment Form Survey Area#: 9313 Survey Unit #: 0000 Survey Unit name: Central Site Grounds Sample Plan or WPIR#: Final Status Survey Plan 9313-0000 SML#: 9313-0000-008 Sample

Description:

Comparison of split samples collected from sample measurement location #8 and analyzed using gamma spectroscopy by off-site Vendor Laboratory.

The standard sample was 9313-0000-008F, the comparison sample was 9313-0000-008FS.

STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (YIN)Cs-137 1.67E-2 6.35E-3 3 N/A 1.OSE-2 4.90E-3 N/A N K-40 1.3 1EI 4.71E-1 28 0.75- 1.33 1.32E1 4.33E-1 1.01 Y Comments/Corrective Actions: Not enough Cs-137 in the Table is provided to show acceptance criteria sample result to yield an acceptable Resolution and used to assess split samples.Agreement Range. Cs-137 was detected but the reported Resolufion Agreement Range result was below the Minimum Detectable Activity 4 -7 0.5 -2.0 (MDA). Naturally occurring K-40 was used to evaluate 8-15 0.6-1.66 the split sample assessment.

16-50 0.75-1.33 51 -200 0.80-1.25>200 0.85-1.18 Performed By: Date RevieY A B: Date: Af e f , 31 "7/d ) 3 1.-0 " I 6--ý)Page 1 of 1 Health Physics Procedure 24265-000-GPP-GGGR-R5124-000-Rev.CY-000 Attachment A HelhPyisPoeue246-0-P-GRR-400-e.YO0Atcmn Split Sample Assessment Form Survey Area#: 9313 Survey Unit #: 0000 Survey Unit name: Central Site Grounds Sample Plan or WPIR#: Final Status Survey Plan 9313-0000 SML#: 9313-0000-014 Sample

Description:

Comparison of split samples collected from sample measurement location #14 and analyzed using gamma spectroscopy by off-site Vendor Laboratory.

The standard sample was 9313-0000-014F, the comparison sample was 9313-0000-014FS.

STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (Y/N)Cs-137 6.62E-3 1.15E-2 0.6 N/A -5.06E-3 1.02E-2 N/A N K-40 9.26E0 4.56E-1 20 0.75 -1.33 9.47E0 4.52E-1 1.02 Y Comments/Corrective Actions: Not enough Cs-137 in the Table is provided to show acceptance criteria sample result to yield an acceptable Resolution and used to assess split samples.Agreement Range. Cs-137 was detected but the reported Resolution Agreement Range result was below the Minimum Detectable Activity 4 -7 0.5 -2.0 (MDA). Naturally occurring K-40 was used to evaluate 8- 15 0.6 -1.66 the split sample assessment.

16-50 0.75-1.33 51-200 0.80-1.25>200 0.85-1.18 Performed By: Date devi d By Date:

?/-,/0 1 T, LZJ 3 -), > -0 7 Page 1 of 1 CENTRAL SITE GROUNDS SURVEY UNIT 9313-0000 RELEASE RECORD ATTACHMENT 4E (COMPASS POWER CURVE)Revision 0 DQA Surface Soil Report Assessment Summary Site: Planner(s):

Survey Unit Name: Report Number: Survey Unit Samples: Reference Area Samples: Test Performed:

Judgmental Samples: Assessment

==

Conclusion:==

9313-0000 FSS McCarthy Central Site Grounds 1 15 0 Sign Test Result: Not Performed 0 EMC Result: Not Performed Reject Null Hypothesis (Survey Unit PASSES)Retrospective Power Curve 1 0.9 f--0.8"0.7 0.6 0.5 0.4 0.3 CL 02 0.1 IL 0 0.0 0.2 0.4 0.6 0.8 1.0 Unity Rule including bckgrwid--Prospective Power 1 1-beta ....Actual Power--- LG i i Estimated Power DCGL ---- Retrospective Power 1.2 COMPASS v1.0.0 3/7/2007 Page1I