ML063540358

Final Status Survey Release Record Subsurface Area Associated with the Southwest Site Storage Area Survey Unit 9807-0000.

ML063540358
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	11/26/2006
From:	McCarthy J Connecticut Yankee Atomic Power Co
To:	NRC/FSME
References
Download: ML063540358 (174)

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CYAPCO FINAL STATUS SURVEY RELEASE RECORD SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000ý57 Tjcr-- 'WI46Aa-, Prepared By: FSS Engineer J Reviewed B SS Engi eer Approved By: ( T, "cb'Ti 3/4,, Technical Support Manager Date: ,A,/-I&!Date!J/Z IlJ g°Date: I I 1_ 0(_Revision 0 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD TABLE OF CONTENTS 1. SURVEY UNIT DESCRIPTION

......................................................

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

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

5 4. SUR V EY D ESIGN .............................................................................

8 5. SURVEY IMPLEMENTATION

.......................................................

11 6. SURVEY RESULTS .........................................................................

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

14 8. INVESTIGATIONS AND RESULTS ..............................................

14 9. REMEDIATION AND RESULTS ...................................................

14 10. CHANGES FROM THE FINAL STATUS SURVEY PLAN ...... 14 11. DATA QUALITY ASSESSMENT (DQA) ......................................

14 12. A N O M A L IE S ....................................................................................

15 13. C O N C LU SIO N ..................................................................................

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

16 14.1 Attachment 1 -Figures (4 pages including cover)14.2 Attachment 2 -Laboratory Data (137 pages including cover)14.3 Attachment 3 -DQA Results (17 pages including covers)TOTAL 174 Revision 0 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD 1. SURVEY UNIT DESCRIPTION Survey Unit 9807-0000 (Subsurface Area associated with the Southwest Site Storage Area) is designated as Final Status Survey (FSS) Class B and consists 2 of 1,983 m (0.5 acres) of uninhabited open land located approximately 1,860 feet from the reference coordinate system benchmark used at Haddam Neck Plant (HNP) (see Attachment 1). The surface area is bounded by Survey Unit 9520-0004.

The surface land unit that resides above this subsurface survey unit is relatively level open space of the peninsula.

The restoration of the peninsula for FSS has removed most of the surface interference in the survey unit.The reference coordinates associated with this survey unit are E007 through E010 by S089 through S093 (refer to 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 9807-0000 consisted of: a) A review of the 1OCFR50.75 (g) (1) database, b) A review of the "Initial Characterization Report" and the "Historic Site Assessment Supplement, " c) Historic and current survey records review, d) Visual inspections and a "walkdown." A review of the 1OCFR50.75(g)(1) database report and historical files shows a documented history of the Southwest Site Storage Area as a radioactive materials storage area. Examples of some of the major events are provided below.a) Plant Incident Report (PIR) 80-37 reported the discovery of three (3)discrete sources of elevated activity on the Southeast Site Storage area in March 1980, along with other areas around the site. The three (3)discrete sources were identified within adjacent Survey Units 9520-0001 and 9520-0002.

The elevated areas were removed upon detection according to the report.Revision 0 3 Revision 0 3 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD b) Health Physics surveys performed in 1983 and 1985 document the discovery of radioactive material (strainers, bolts, wood pallets, sections of pipe, etc.) on the peninsula.

The 1985 survey documents the discovery of contaminated dirt under a pallet.c) Condition Report (CR) 05-0314: Documents the discovery of excavation spoils, intended for backfill, above the radiological criteria for use as backfill.

These spoils were likely located in Survey Units 9520-0003 and 9520-0004, based on a review of the documentation.

According to the CR closure documentation, the affected spoils were removed and packaged for disposal.

Follow-up survey and sampling was performed and the results were below established action levels.A review of the "Initial and Supplemental Characterization Reports" as well as the previous "Classification Basis Summaries" was performed.

Survey Unit 9807-0000 was originally part of subsurface Survey Unit 9805-0000, which was initially designated as Class C during the development of the LTP.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 (references 2-2 and 2-7 respectively).

The second source document justified a Class C designation for those areas for which there was historical evidence of contamination above the Derived Concentration Guideline Levels (DCGLs -refer to Section 2 for definition and description of DCGL), but for which recent surveys had shown that decontamination efforts had occurred and that the radiological conditions were expected to be below the DCGLs. Additional justification for a Class C designation based on survey and sampling data was provided as another reference to the LTP by the "Haddam Neck Plant Historical Site Assessment Supplement".

However, in March of 2006, Co-60 and Cs-137 were identified in subsurface soils in sufficient quantities to warrant radiological remediation.

Radiological remediation was performed in July 2006. A new Class 1 survey unit, Survey Unit 9520-0004, and a new subsurface unit, Survey Unit 9807-0000, were established to bound the area of remediation.

Remedial action was performed in July 2006. Although Co-60 has been identified in the past, Cs-137 was the only radionuclide with the potential to exceed the screening criteria following the remedial action. Statistical quantities (mean, median and standard deviation) from the 2006 remedial action survey are provided in Table 1.Revision 0 4 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD.. urve.Minimum Observed Concentration (pCi/g):-1.79E-03 Maximum Observed Concentration (pCi/g): 2.24E-02 Mean (pCi/g): 6.84E-03 Median (pCi/g): 3.69E-03 Standard Deviation (pCi/g): 8.39E-03 The FSS Engineer performed a visual inspection and walk-down during September 2006 to assess the physical condition of the survey unit, evaluate access points and travel paths and identify potentially hazardous conditions.

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

Based upon the results of radiological surveys performed over six years of restoration and the 2006 remedial action survey, it was concluded that there was a probability for residual radioactivity in concentrations less than the DCGLs, justifying a final survey unit classification of Class B (refer to Section 3). Note, due to the size of the survey unit, the sample to area frequency far exceeds the frequency requirement for Class A survey units of one sample every 500 m 2 as specified by LTP Section 5.7.3.2.2.

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.

Therefore, the survey unit does satisfy the primary objective of the FSS plan.The primary objective of the FSS plan was to demonstrate that the level of residual radioactivity in Survey Unit 9807-0000 did not exceed the release Revision 0 5 iF; SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD criteria specified in the LTP and that the potential dose from residual radioactivity is As Low As Reasonably Achievable (ALARA).A fundamental precursor to survey design is to establish a relationship between the release criteria and some measurable quantity.

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

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

Equation 1 shows the mathematical relationship between the three (3) components and the total dose.Equation I HTotal Hsoi 0 +HExistingGW -HFutureGW The total dose under the LTP criteria is twenty-five (25) mrem/yr TEDE from all three (3) components.

The allowable total dose under the Connecticut Department of Environmental Protection (CTDEP) radiological remediation standard for CY is nineteen (19) mremlyr TEDE. To satisfy both the LTP and CY CTDEP criteria, the dose from soil must be reduced when using the existing and future groundwater dose values discussed above.This survey area is affected by existing groundwater (reference CY memo ISC 06-024). Therefore, the dose contribution from existing groundwater is bounded by two (2) mrem/yr TEDE.This survey unit is not considered impacted by future groundwater radioactive contamination, as there are no buried concrete foundations or footings 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, therefore, zero (0) mrem/yr TEDE.Equation 2 19 mrem/yrTotal

= 17 mrem/yrsoil

+ 2 mrem/yrExisting GW+ 0 mrem/yrFutureGw Revision 0 6 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD The allowable dose for soil in this survey unit is seventeen (17) mrem/yr TEDE as shown by Equation 2 above. The concentration of residual radioactivity resulting in seventeen (17) mrem/yr TEDE is designated as the Operational DCGL, and has been established for the radionuclides of concern as provided in Table 2.Table 2 -Radionuclide Specific Basen u e Soil DCL[ Operational DCGLs Radionuclide B Base CaseSoil

Operational DCGL =

MDC 2=DCGL CI, (Vi~ '12 > (C&i>g)~ ( cj,/g H-3 4.12E+02 2.80E+02 1.65E+01 C-14 5.66E+00 3.85E+00 2.26E-01 Mn-54 1.74E+01 1.18E+O1 6.96E-01 Fe-55 2.74E+04 1.86E+04 1 .1 OE+03 Co-60 3.81E+00 2.59E+00 1.52E-01 Ni-63 7.23 E+02 4.92E+02 2.89E+01 Sr-90 1.55E+00 1.051E+00 6.20E-02 Nb-94 7.122E+00 4.84E+00 2.85 E-01 Tc-99 1.26E+01 8.57E+00 5.04E-0 I Ag- 108m 7.14E+00 4.86E+00 2.86E-01 Cs-I134 4.67E+00 3.18E+00 1.87E-01 Cs-137 7.91E+00 5.38E+00 3.16E-0I Eu- 152 1.01E+01 6.87E+00 4.04E-01 Eu- 154 9.29E+00 6.32E+00 3.72E-0I Eu-155 3.92E+02 2.67E+02 1.57E+01 Pu-238 2.96E+01 2.01 E+O1 1.1 8E+00 Pu-239/240 2.67E+01 1.82E+01 1.07E+00 Pu-241 8.70E+02 5.92E+02 3.48E+01 Am -241 ( 2.581E+01 1.75E+01 1.03E+00 Cm-243/244 2.90E+O1 1.97E+01 1.16E+00 (1) Bold indicates those radionuclides considered to be Hard-to-Detect (HTD)(2) The Base Case Soil DCGLs for soil are specified by the LTP in Chapter 6 and are equivalent to 25 mrem/yr TEDE (3) The Operational DCGL is equivalent to 17 mrem/yr TEDE (4) The required MDC is equivalent to I mrem/yr TEDE (5) Americium-241 can be analyzed by gamma and alpha spectroscopy and is considered to be Easy to Detect (ETD); the preferred result is the alpha spectroscopy's when both analyses are performed Revision 0 7 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 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 during the remedial action survey. Cs-137 was the only gamma emitting radionuclide reported in concentrations with the potential for exceeding the screening criteria.

The remedial action survey data were used for the survey design and are provided in Table 1.Instrument DQOs included a verification of the ability of the survey instrument to detect the radiation(s) of interest relative to the DCGL. Survey instrument response checks were required prior to issue and after the instrument had been used. Control and accountability of survey instruments was required to assure the quality and prevent the loss of data.As part of the DQOs applied to laboratory processes, analysis results were reported as actual calculated results. Results reported as less than Minimum Detectable Concentration (MDC) were not accepted for FSS. Sample report summaries included unique sample identification, analytical method, radionuclide, result, and uncertainty to two (2) standard deviations, laboratory data qualifiers, units, and the required and observed MDC.4. SURVEY DESIGN The level of effort associated with planning a survey is based on the complexity of the survey and nature of the hazards. Guidance for preparing FSS plans is provided in Procedure RPM 5.1-11, "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 9807-0000 (refer to Section 3). Other radionuclides identified during 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 B area and discrete, elevated areas of contamination were not expected.The Sign Test was selected as the non-parametric statistical test. The use of the Sign Test did not require the selection or use of a background reference area, which simplified survey design and implementation.

This approach was conservative since it included background Cs-137 as part of the sample set.Revision 0 8 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD The number of soil samples for FSS was determined in accordance with the LTP. The Lower Bound of the Gray Region (LBGR) was set in accordance with Procedure RPM 5.1-11 to 5.36 to maintain the relative shift (A/o) 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 (10 CFR 20, Subpart E). The result of the COMPASS computer run showed adequate power for the survey design.The survey design specified twenty-five (25) core soil samples for non-parametric statistical testing.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 B area.Judgmental sampling was not determined to be necessary by the DQOs, based on the short distance between the area that was subjected to remedial action and FSS sample location 9807-0000-012F.

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 -Samuple Measurement Locations.

with Associated G.PS oordinates

>7 ' N.r.thiogi<..

Easting 9807-0000-001F 235632.88 669753.10 9807-0000-002F 235632.88 669784.48 9807-0000-003F 235632.88 669815.87 9807-0000-004F 235605.70 669737.40 9807-0000-005F 235605.70 669768.79 9807-0000-006F 235605.70 669800.18 9807-0000-007F 235605.70 669831.56 9807-0000-008F 235605.70 669862.95 9807-0000-009F 235578.52 669721.71 9807-0000-01 OF 235578.52 669753.10 9807-0000-011 F 235578.52 669784.48 Revision 0 9 Revision 0 9 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD Table 3 -Sample Measu remet tLocations

ýýith Associated (A, Coordin~ates2N91N 0 chig vEasting 9807-0000-012F 235578.52 669815.87 9807-0000-013F 235578.52 669847.25 9807-0000-014F 235578.52 669878.64 9807-0000-015F 235551.34 669737.40 9807-0000-016F 235551.34 669768.79 9807-0000-017F 235551.34 669800.18 9807-0000-018F 235551.34 669831.56 9807-0000-019F 235551.34 669862.95 9807-0000-020F 235551.34 669894.33 9807-0000-021F 235524.15 669784.48 9807-0000-022F 235524.1.5 669815.87 9807-0000-023F 235524.15 669847.25 9807-0000-024F 235524.15 669878.64 9807-0000-025F 235496.97 669862.95 Procedure RPM 5.1-11 specifies that 5% of the samples are required to be selected for HTD analysis.

Three (3) soil samples, or about 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 implementation of quality control measures as referenced by Procedure RPM 5.1-24, "Split Sample Assessment for Final Status Survey," included the collection of three (3) soil samples for "split sample" analysis by the off-site laboratory.

These locations were selected randomly using the Microsoft Excel"RANDBETWEEN" function.

The number of quality control soil samples was about 10% of twenty-five (25) samples.The LTP does not require scanning for elevated areas of radioactivity in subsurface survey units.For this Class B survey unit, the "Investigation Level" for 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 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD J Table -~ Synopsis of the Survey Design>Featurie Design Criteria K ,' Basis Survey Unit Land Area 1,983 m 2 Based on AutoCAD-LT 25 Number of Measurements (25 systematic grid) Based on LTP 5.7.3.2.2 1)Grid Spacing 9.6 m Based on triangular grid Administratively set to achieve Operational DCGL 5.38 pCi/g Cs-137 17 mrem/yr TEDE (2)The Operational DCGL meets Soil Investigation Level 5.38 pCi/g Cs-137 the LTP criteria for a Class B I I survey unit (1) Due to the size of the survey unit, the sample to area frequency far exceeds the frequency requirement for Class A survey units of one sample every 500 m 2 as specified by LTP Section 5.7.3.2.2 (2) The allowable dose for soil in this survey unit is 17 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 FSS field activities were conducted under Work Plan and Inspection Record (WP&IR) 2006-0038.

The WP&IR package included a detailed FSS plan, job safety analysis, job planning checklist and related procedures for reference.

Daily briefings were conducted to discuss the expectations for job performance and the safety aspects of the survey. The "Daily Survey Journal" was used to document field activities and other information pertaining to the FSS.Measurement locations were identified in North American Datum (NAD) 1927 coordinates using GPS coordinates; sample locations were identified and marked with a surveyor's flag or paint for identification.

Twenty-five (25) subsurface soil samples were collected and packaged in accordance with Haddam Neck Plant (HNP) Procedure RPM 5.1-3, "Collection of Sample Media for Final Status Survey" and FSS design. Samples were controlled, transported, stored, and transferred to the off-site laboratory using Chain-of-Custody (COC) protocol in accordance with Procedure RPM 5.1-5,"Chain of Custody for Final Status Survey Samples." Three (3) samples (9807-0000-003F, 9807-0000-008F and 9807-0000-013F) were randomly selected for HTD radionuclide analysis.The implementation of survey specific quality control measures included the collection of three (3) samples (9807-0000-012F, 9807-0000-018F and 9807-0000-024F) for "split sample" analysis.Revision 0 I1I Revision 0 11 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD 6. SURVEY RESULTS All field survey activities were conducted between September 13, 2006 and September 21, 2006.The off-site laboratory employed for the radiological analyses of samples was General Engineering Laboratories, LLC. The laboratory analyzed the twenty-five (25) samples collected for non-parametric statistical testing, and the associated field splits 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 standard deviations uncertainty).

However, Cs-137 was the only radionuclide reported in concentrations exceeding the de-selection criteria.Cs-137 was identified in eight (8) of the twenty-five (25) samples collected for non-parametric statistical testing. Cs-137 was the primary radionuclide confirming the DQOs. The mean of the gamma spectroscopic analysis results for the sample population indicated that Cs- 137 was present at levels lower than the concentrations of Cs-137 found in soil at off-site locations within the vicinity of the HNP as presented in the Health Physics TSD BCY-HP-0063.

A summary of the twenty-five (25) samples collected for non-parametric statistical testing results is provided in Table 5.STable 5 -Summary of Soil Sample Resilts for the Statistical Sample________________

~~i~Populationl

____ ____Sam~ple Numb~er Cs J37 Fraction of the 1________________

Operational DCGL (V 9805-0000-OOIF

-7.91 E-03 0.000I 9805-0000-002F

-2.76E-02 0.000 9805-0000-003F 4.02E-02 0.007 9805-0000-004F

-1.26E-03 0.000 9805-0000-005F 1.87E-02 0.003 9805-0000-006F

-8.34E-03 0.000 9805-0000-007F

-1.54E-02 0.000 9805-0000-008F

-1.36E-02 0.000 9805-0000-009F 3.30E-02 0.006 9805-0000-01OF 2.86E-02 0.005 9805-0000-01 IF -2.32E-02 0.000 9805-0000-012F 4.36E-02 0.008 9805-0000-013F

-2.51E-03 0.000 9805-0000-014F 8.18E-03 0.002 Revision 0 12 Revision 0 12 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD 9807-0000-016F 6.01E-03 0.001 9807-0000-017F 3.34E-02 0.006 9807-0000-018F 2.39E-03 0.000 9807-0000-019F

-3.24E-04 0.000 9807-0000-020F 3.53E-02 0.007 9807-0000-021F 0.OOE+00 0.000 9807-0000-022F 2.88E-02 0.005 9807-0000-023F 2.56E-02 0.005 9807-0000-024F 1.1 8E-02 0.002 9807-0000-025F 3.50E+00 0.651 (1) The Operational DCGL from Table 2 is 5.38 pCi/g for Cs-137 to achieve seventeen (17)mrem/yr TEDE The off-site laboratory also processed three (3) 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 MDC.As previously stated in Section 4 of this report, the criteria for de-selection of a radionuclide is a concentration that is less than 5% of the Operational DCGL for individual radionuclides and less than 10% of the Operational DCGLs for aggregates.

H-3 and Am-241 were the only HTDs identified above the accepted criteria for detection (i.e., a result greater than two standard deviations uncertainty).

The off-site laboratory prepared and reanalyzed two (2) of the three (3) original samples for H-3 at HNP's request; and performed H-3 analysis on five (5) other samples bordering the two (2) sample locations.

The results of all seven (7) samples were all less than the accepted criteria for detection.

The highest result for Am-241 was about 4% of the Operational DCGL.'~Table 8 -1H d-toDe~tect Sample >Results ~111pie An-4 Fraction of OperationalDCG LP 9807-0000-003F 7.13E-01 0.041 9807-0000-008F 5.32E-02 0.003 9807-0000-013F 9.35E-02 0.005 (1) The Operational DCGL from Table 2 is 17.5 pCi/g for Am-241 to achieve 17 mrem/yr TEDE Revision 0 13 Revision 0 13 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD 7. QUALITY CONTROL The off-site laboratory processed the split samples and performed gamma spectroscopy analysis.

Ten percent (10%) of the samples were selected for analysis, which exceeds the 5% minimum required by the LTP. The data were evaluated using USNRC acceptance criteria specified in Inspection Procedure 84750 as detailed in HNP Procedure RPM 5.1-24, "Split Sample Assessment for Final Status Survey". Cs-137 was not detected in sufficient quantities in the field split results at the three (3) locations to evaluate in accordance with procedure.

Evaluation using the reported results for K-40 resulted in acceptable agreement between the field split results at these locations.

The sample analysis vendor, General Engineering Laboratories, LLC, maintains quality control and quality assurance plans as part of normal operation.

Refer to Attachment 4 for data and data quality analysis results.8. INVESTIGATIONS AND RESULTS No investigations were performed.

9. REMEDIATION AND RESULTS Remedial action was performed in July 2006. Although Co-60 has been identified in the past, Cs-137 was the only radionuclide with the potential to exceed the screening criteria following the remedial action. Health Physics TSD BCY-HP-0078, "ALARA Evaluation of Soil Remediation in Support of Final Status Survey, " has determined that remediation beyond that required to meet the release criteria is unnecessary and that the remaining residual radioactivity in soil was ALARA.10. CHANGES FROM THE FINAL STATUS SURVEY PLAN No changes were made to the FSS plan.11. DATA QUALITY ASSESSMENT (DQA)The DQO sample design and data were reviewed in accordance with Procedure RPM 5.1-23, "Data Quality Assessment, " for completeness and consistency.

The sampling design had adequate power as indicated by the Retrospective Power Curve. The Sign Test was performed on the data and compared to the original assumptions of the DQOs. The evaluation of the Sign Test results demonstrates that the survey unit passes the unrestricted release criteria, thus, the null hypothesis is rejected.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 B.Revision 0 14 Revision 0 14 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD 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.For Cs-137, the range of the data, about five (5) standard deviations, indicated some variation, mainly as a result of one (1) sample that is higher in concentration than the rest of the data set. The difference between the mean and median was about 20% 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 significant positive skewness due to one (1) sample as confirmed by the calculated skew of 4.99.All data, assessments, and graphical representations are provided in Attachment 3.12. ANOMALIES No anomalies were noted.13. CONCLUSION Survey Unit 9807-0000 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.Cs-137 was used for statistical testing to determine the adequacy of the survey unit for FSS.The sample data passed the Sign Test. The null hypothesis was rejected.

The Retrospective Power Curve generated using COMPASS shows adequate power was achieved.

The survey unit is properly designated as Class B.The dose contribution from soil is less than 1 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 not considered impacted by future groundwater radioactive contamination, as there are no underground structures, systems or components containing residual radioactive material within the groundwater saturated zone in the area (reference CY memo ISC 06-024); therefore, the dose contribution from future groundwater is zero (0) mrem/yr TEDE.Revision 0 15 Revision 0 15 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD 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 3 mrem/yr TEDE. Therefore, Survey Unit 9807-0000 is acceptable for unrestricted release.14. ATTACHMENTS 14.1 Attachment 1 -Survey Unit Location Map 14.2 Attachment 2 -Laboratory Results 14.4 Attachment 3 -DQA Results Revision 0 16 Revision 0 16 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD ATTACHMENT 1 (FIGURES)

,cOwvncl 7 Tur RrviR.R-Connecticut Yankee Atomic Power Company Site Map With Reference To Survey Unit 9807-0000 0 12.5 25 , iii FMe e Connecticut Yankee Atomic Power Company Survey Unit 9807-0000 Final Status Survey Design

-0.01 0.01-0.02-0.03 0.-0.03 0 12.5 25 , IFeet-0.01-0.01-0.01 0.04 Notes Reporte Conceniti'ons in pci/g 0.02 0.0 0.01-0.02-0.01 0.03 0.03 0.03 0.03 3.0.01 0.03 0.01 Connecticut Yankee Atomic Power Company Survey Unit 9807-0000 Final Status Swvey Cs-137Posting Plot SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD ATTACHMENT 2 (LABORATORY DATA)

General Narrative 1 General Narrative for Connecticut Yankee Atomic Power Co.Work Order: 172275 SDG: MSR#06-1282 October 04, 2006 Laboratory Identification:

General Engineering Laboratories, LLC 2040 Savage Road Charleston, South Carolina 29407 (843) 556-8171 Summary Sample receipt The samples arrived at General Engineering Laboratories, LLC, Charleston, South ,Carolina on September 21, 2006 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 172275001 172275002 172275003 172275004 172275005 172275006 172275007 172275008 172275009 172275010 172275011 Sample Description 9807-0000-001F 9807-0000-002F 9807-0000-003F 9807-0000-004F 9807-0000-005F 9807-0000-006F 9807-0000-007F 9807-0000-008F 9807-0000-009F 9807-0000-01OF 9807-0000-011F 2

172275012 172275013 172275014 172275015 172275016 172275017 172275018 172275019 172275020 172275021 172275022 172275023 172275024 172275025 172275026 172275027 172275028 Items of Note 9807-0000-012F 9807-0000-012FS 9807-0000-013F 9807-0000-014F 9807-0000-015F 9807-0000-016F 9807-0000-017F 9807-0000-018F 9807-0000-018FS 9807-0000-019F 9807-0000-020F 9807-0000-021F 9807-0000-022F 9807-0000-023F 9807-0000-024F 9807-0000-024FS 9807-0000-025F There are no items to note.Case Narrative Sample analyses were conducted using methodology as outlined in General Engineering Laboratories (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-five soil samples were analyzed for FSSGAM. Three soil samples were analyzed for FSSALL.Data Package The enclosed data package contains the following sections:

General Narrative, Chain of Custody and Supporting Documentation, Data Review Qualifier Definitions, and data from the following fractions:

Radiochemistry.

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

Cheryl Jones Project Manager 3 List of current GEL Certifications as of 04 October 2006 State Certification Alaska UST-062 Arizona AZ0668 Arkansas 88-0651 CLIA 42D0904046 California 01 151CA Colorado GenEngLabs Connecticut PH-0169 Dept. of Navy NFESC 413 EPA WG-15J Florida/NELAP E87156 Georgia E87156 (FUNELAP)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 SC002 New Mexico FL NELAP E87156 New York 11501 North Carolina 233 North Carolina Drinking W 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania 68-00485 South Carolina 10120001/10585001/10120002 Tennessee 02934 Texas TX213-2006A Texas NELAP T104704235-06-TX U.S. Dept. of Agriculture S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont VT87156 Virginia 00151 Washington C 1641 4 Chain of Custody and Supporting Documentation 5

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-001 Major Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-568 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: Comments: Jack McCarthy 860-267-3924 Media Sample Container Code Type Size-Analytical Lab (Name, City, State): Code &Type General Engineering Laboratories Code 2040 Savage Road Charleston, SC 29407 ATT: Cheryl Jones (843-556-8171)

Priority:

E] 30 D. Z 14 D. Fl 7 D. <Other: r <I C- -Sample Designation Date Time 1 Comment, Preservation Lab Sample ID 9807-0000-001F 914610 / L/.7 TS C BP __9807-0000-00L 0 L TS C BP 9807-0000-003 I F/M'7 TS C BP --_9807-0000-0D4 Z 15.23 TS C BP 9807-0000-0 D5P ] 65- TS C BP %_9807-0000-0 0o F /: fpj46, 1 J105 TS C BP 9807-0000-0011 P " TS C BP 9807-0000-0oo F JiJ0ol; \ 5 TS C BP <_9807-0000-0.oO

.TS C B K q _____TSIC BP_

~ ll4009 TS, C B P 9807-0000-0 1 "0 1450 TS C BP _ _NOTES: PO #: 002332 MSR #: /0:1. Z LTP QA El Radwaste QA El Non QA Samples Shipped Via: Internal Container Z Fed Ex Temp.: 7 Deg. C El UPS El Hand Custody Sealeý?1) Relinquished 7 Date/Time 2 e) ceiv By Date/Time Custody Seal Intact?3) Relinquished Ay Date/Time

4) Received B l Date/Time Y __ N E1 5 Bill of Lading #5) Relinquished By Date/Time

6) Received By Date/Time Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-001 Major Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-569 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Decommissioning Analyses Requested Lab Use Only Contact Name & Phone: Comments: Jack McCarthy 860-267-3924 Media Sample Container Code Type Size-Analytical Lab (Name, City, State): Code &Type General Engineering Laboratories Code 2040 Savage Road Charleston, SC 29407 ATT: Cheryl Jones (843-556-8171)

Priority:E]

30 D. E 14 D. ] 7 D.Other: Cn r./3 rd3 Sample Designation Date Time Comment, Preservation Lab Sample ID 9807-0000-0 1 F tb TS C BP /4, ZAfe 0o1 9807-0000-0 q -I b' cA" TS C BP ___ oDID 9807-0000-0 F14.e,( TS C BP _9807-0000-0 t1 -qt -Qb 6 0e-' TS C BP _0 9807-0000-0 vF- o-l-.1._ C ,, TS C BP 9807-0000-0 1 Q- " a-%. TS C BP /V 9807-0000-0

\Q, Q- tkk 1.4 TS C BP 9807-0000-0

\yF ,u-d.Q " TS C BP 9807-0000-0

\ :, 6J ýS ,O,.0~ 1( t 5 TS C BP __9807-0000-0

\v -t *c, "s TS C BP ,,_ ___9807-0000-0-Zcc V 9 ý%*CF .TS C BP __NOTES: PO #: 002332 MSR #: 04 --1 .[ LTP QA E] Radwaste QA F] Non QA Samples Shipped Via: Internal Container E Fed Ex Temp.: __ Deg. C ED ups E] Hand Custody 1) Relinquished By Date/Time

2) e eve ate/TimerCustody Seal Intact?9'/O 9& EOther 3) Relinquished By Date/Time

4) ke'ceived y Date/Time YE NE Bill of Lading #5) Relinquished By Date/Time

6) Received By Date/Time Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-001 Major Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-570 362 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. Z 14 D. [] 7 D. <Other: Cn <Sample Designation Date Time Comment, Preservation Lab Sample ID 9807-0000-0,4

ý q. c,- j2Z-tý- TS C BP 9807-0000-0 1)U, q-WoU tzs-, TS C BP __a 9807-0000-0 z,; o" 4. t k & -- TS C BP __1_9807-0000-0

?J= q..V*ý_ O(9 )141&0 TS C BP __9807-0000-0 a I 1 9 j TS C BP 5<_ _

ccc s- Q -v c.. fS L _NOTES: PO #: 002332 MSR #: 0 Z -LTP QA 13 Radwaste QA 13 Non QA Samples Shipped Via: Internal Container Z Fed Ex Temp.: __ Deg. C 0] ups 13 Hand Custody Sealed?1) Relinquished By Date/Time

2) Re4ivef~y -A --ate/Time Custody Seazlntact?

3) Relinquished By Date/Time

4) Received byKj Date/Time YE 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-01 Figure 1. Sample Check-in List.Date/Time Received:

.0(_0 0Q0D* SDG#: Work Order Number: [Shipping CdntainereD:

0-7-1 Z_ Chain of Custody'#

o -5(.0 8 -70; m g t e e_,- .m--h,!,.s i ,Gi~ _ __ `: 1. Custody Seals ori shipping container intact?- Yes [ t No [] At/1-2. Custody Seals dated and signed? Yes[ ] No [ ]./1/3. Chain-of-Custody record pr.sent? Yes !7'No[ I 4. Cooler temperature

/ L 5. Vermiculite/packing materials is: Wet [ ] Dry [ ,/Ut:" 6. Number of samples in shipping container:

2 " '" '7. Sample holding times exceeded?

Yes [] No/8. Samples have:*_Ztape -hazard labels_ custody seals -appropriate sample labels 9. Samples are:/-ingood condition

• leaking-broken -. have air bubbles 10. Were any anomalies identified in sample receipt? Yes [ ]No i. *Description of anomalies (include sample numbers): Telephoned to: On By On -- By_- ... .

Data Review Qualifier Definitions 10 Data Review Qualifier Definitions Qualifier Explanation

• A quality control analyte recovery is outside of specified acceptance criteria** Analyte is a surrogate compound* Result is less than value reported* Result is greater than value reported RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank B Metals-Either presence of analyte detected in the associated blank, or MDL/IDL < sample value < PQL BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample d 5-day BOD-The 2:1 depletion requirement was not met for this sample E Organics-Concentration of the target analyte exceeds the instrument calibration range E Metals-%difference of sample and SD is >10%. Sample concentration must meet flagging criteria H Analytical holding time was exceeded h Preparation or preservation holding time was exceeded J Value is estimated N Metals-The Matrix spike sample recovery is not within specified control limits N Organics-Presumptive evidence based on mass spectral library search to make a tentative identification of the analyte (TIC). Quantitation is based on nearest internal standard response factor N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the reporting limit UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound Z Paint Filter Test-Particulates passed through the filter, however no free liquids were observed.11 RADIOLOGICAL ANALYSIS 12 Radiochemistry Case Narrative Connecticut Yankee Atomic Power Co. (YANK)Work Order 172275 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 572120 571426 571421 Sample ID 172275003 172275008 172275014 1201191303 1201191304 1201191305 1201191306 Client ID 9807-0000-003F 9807-0000-008F 9807-0000-013F Method Blank (MB)172114001(9530-0001-008F)

Sample Duplicate (DUP)172114001(9530-0001-008F)

Matrix Spike (MS)Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering 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.

13 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: 172114001 (9530-0001-008F).

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

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

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 14 Product: Alphaspec Pu, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu- 11-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 572121 571426 571421 Sample ID 172275003 172275008 172275014 1201191307 1201191308 1201191309 1201191310 Client ID 9807-0000-003F 9807-0000-008F 9807-0000-013F Method Blank (MB)172114001(9530-0001-008F)

Sample Duplicate (DUP)172114001(9530-0001-008F)

Matrix Spike (MS)Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-01 I REV# 14.Calibration Information:

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

Guality 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: 172114001 (9530-0001-008F).

QC Information All of the QC samples met the required acceptance limits.15 Technical Information:

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

Miscellaneous Information:

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

A nonconformance report (NCR) was not generated for this SDG.Manual Integration No manual integrations were 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- 11-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 BatchNumber:

Ash Soil Prep Dry Soil Prep 572122 571426 571421 16 Sample ID Client ID 172275003 9807-0000-003F 172275008 9807-0000-008F 172275014 9807-0000-013F 1201191311 Method Blank (MB)1201191312 172114001(9530-0001-008F)

Sample Duplicate (DUP)1201191313 172114001(9530-0001-008F)

Matrix Spike (MS)1201191314 Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering 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 (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: 172114001 (9530-0001-008F).

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

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

Miscellaneous Information:

NCR Documentation 17 Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents.

A nonconformance report (NCR) was not generated for this SDG.Manual Integration No manual integrations were performed on data in this batch.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Method/Analysis Information Product: Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Analytical Method: Prep Method: Analytical Batch Number: Prep Batch Number: EML HASL 300,4.5.2.3 Dry Soil Prep 574335 571421 18 Sample ID 172275001 172275002 172275003 172275004 172275005 172275006 172275007 172275008 172275009 172275010 172275011 172275012 172275013 172275014 172275015 172275016 172275017 172275018 172275019 172275020 1201196536 1201196537 1201196538 Client ID 9807-0000-00IF 9807-0000-002F 9807-0000-003F 9807-0000-004F 9807-0000-005F 9807-0000-006F 9807-0000-007F 9807-0000-008F 9807-0000-009F 9807-0000-01 OF 9807-0000-01 IF 9807-0000-012F 9807-0000-012FS 9807-0000-013F 9807-0000-014F 9807-0000-015F 9807-0000-016F 9807-0000-017F 9807-0000-018F 9807-0000-018FS Method Blank (MB)172275001(9807-0000-001 F) Sample Duplicate (DUP)Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-013 REV# 12.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: 172275001 (9807-0000-00IF).

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

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

Miscellaneous Information:

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

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.Qualifier information Qualifier Reason Analyte Sample UI UI Data rejected due to high peak-width.

Data rejected due to interference.

Cesium- 137 Cesium- 134 Europium-155 Actinium-228 Cesium- 134 UI Data rejected due to low abundance.

172275013 172275017 172275008 172275013 172275002 172275003 172275006 172275007 172275008 172275012 172275015 172275018 1201196537 20 Method/Analysis Information Product: Analytical Method: Prep Method: Analytical Batch Number: Prep Batch Number: Sample ID 172275021 172275022 172275023 172275024 172275025 172275026 172275027 172275028 1201196539 1201196540 1201196541 Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived EML HASL 300, 4.5.2.3 Dry Soil Prep 574336 571423 Client ID 9807-0000-019F 9807-0000-020F 9807-0000-021F 9807-0000-022F 9807-0000-023F 9807-0000-024F 9807-0000-024FS 9807-0000-025F Method Blank (MB)172275028(9807-0000-025F)

Sample Duplicate (DUP)Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering 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# 12.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.21 Designated QC The following sample was used for QC: 172275028 (9807-0000-025F).

QC Information Refer to Non-Conformance Report.Technical Information:

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

Miscellaneous Information:

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

The following NCR was generated for this SDG: NCR 368031 was generated due to Failed RPD for DUP. 1. Failed RPD for DUP: The relative percent difference (172275028 and 120119654) for K-40 and Pb-212 did not meet the duplication criteria.

1.K-40 and Pb-212 are naturally occurring nuclides.

All other nuclides meet within the duplication criteria.

Reporting results.Additional Comments Additional comments were not required for this sample set.Oualifier information Qualifier Reason Analyte Sample UI UI UI Data rejected due to high peak-width.

Data rejected due to interference.

Data rejected due to low abundance.

Cesium- 137 Europium-155 Cesium- 134 172275023 172275023 172275021 172275022 172275024 172275025 1201196540 Method/Analysis Information 22 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 572301 571426 571421 Sample ID 172275003 172275008 172275014 1201191723 1201191724 1201191725 1201191726 Client ID 9807-0000-003F 9807-0000-008F 9807-0000-013F Method Blank (MB)172275003(9807-0000-003F)

Sample Duplicate (DUP)172275003(9807-0000-003F)

Matrix Spike (MS)Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-004 REV# 10.Calibration Information:

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

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: 172275003 (9807-0000-003F).

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

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

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

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

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Method/Analysis Information Product: Liquid Scint Tc99, Solid-ALL FSS Analytical Method: Analytical Batch Number: Sample ID 172275003 172275008 172275014 1201190771 1201190772 1201190773 1201190774 DOE EML HASL-300, Tc-02-RC Modified 571877 Client ID 9807-0000-003F 9807-0000-008F 9807-0000-013F Method Blank (MB)172275003(9807-0000-003F)

Sample Duplicate (DUP)172275003(9807-0000-003F)

Matrix Spike (MS)Laboratory Control Sample (LCS)24 SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-005 REV# 13.Calibration Information:

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

Quality Control (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: 172275003 (9807-0000-003F).

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

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

Miscellaneous Information:

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

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.25 Qualifier information Manual qualifiers were not required.Method/Analysis Information Product: Liquid Scint Fe55, Solid-ALL FSS Analytical Method: DOE RESL Fe- 1, Modified Prep Method: 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 571874 571426 571421 Sample ID 172275003 172275008 172275014 1201190757 1201190758 1201190759 1201190760 Client ID 9807-0000-003F 9807-0000-008F 9807-0000-013F Method Blank (MB)172275008(9807-0000-008F)

Sample Duplicate (DUP)172275008(9807-0000-008F)

Matrix Spike (MS)Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering 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 (00 Information:

Blank Information 26 The blank volume is representative of the sample volume in this batch.Designated QC The following sample was used for QC: 172275008 (9807-0000-008F).

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

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

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: 571876 Prep Batch Number: 571426 Dry Soil Prep GL-RAD-A-021 Batch Number: 571421 27 Sample ID Client ID 172275003 9807-0000-003F 172275008 9807-0000-008F 172275014 9807-0000-013F 1201190767 Method Blank (MB)1201190768 172275014(9807-0000-013F)

Sample Duplicate (DUP)1201190769 172275014(9807-0000-013F)

Matrix Spike (MS)1201190770 Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering Laboratories, LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-022 REV# 8.Calibration Information:

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

Ouality Control (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: 172275014 (9807-0000-013F).

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 28 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.Gualifier information Manual qualifiers were not required.Method/Analysis Information Product: Analytical Method: Analytical Batch Number: Sample ID 172275003 172275008 172275014 1201190793 1201190794 1201190795 1201190796 LSC, Tritium Dist, Solid-HTD2,ALL FSS EPA 906.0 Modified 571884 Client ID 9807-0000-003F 9807-0000-008F 9807-0000-013F Method Blank (MB)172275003(9807-0000-003F)

Sample Duplicate (DUP)172275003(9807-0000-003F)

Matrix Spike (MS)Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering 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.

29 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: 172275003 (9807-0000-003F).

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

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

Miscellaneous Information:

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

The following NCR was generated for this SDG: NCR 365692 was generated due to Container scanning event for custody missed. 1. The analyst did not scan the samples 172275003, 172275008, and 172275014 into the batch prior to analysis, however the samples did remain in their custody at all times. 1. The error has been corrected and the analyst has been instructed on the proper scanning procedures.

Reporting results.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Method/Analysis Information Product: Liquid Scint C14, Solid AII,FSS Analytical Method: EPA EERF C-01 Modified Analytical Batch Number: 571880 30 Sample ID Client ID 172275003 9807-0000-003F 172275008 9807-0000-008F 172275014 9807-0000-013F 1201190783 Method Blank (MB)1201190784 172275003(9807-0000-003F)

Sample Duplicate (DUP)1201190785 172275003(9807-0000-003F)

Matrix Spike (MS)1201190786 Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering 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 (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: 172275003 (9807-0000-003F).

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

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

Miscellaneous Information:

NCR Documentation 31 Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents.

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative.

Review Validation:

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

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

Reviewer/Date:

., 32 General Engineering Laboratories Form GEL-NCR Rev. 06/05 NCR Report No.: 365692 Revision No.: COMPANY -WIDE NONCONFORMANCE REPORT Mo.Day Yr. Division:

Quality Criteria:

Type: 29-SEP-06 Radiochemistry Specifications Process Instrument Type: Test / Method: Matrix Type: Client Code: LSC EPA 906.0 Modified Solid YANK Batch ID: Sample Numbers: 571884 See Below Potentially affected work order(s)(SDG):

172275(MSR#06-1282)

Application Issues: Container scanning event for custody missed Specification and Requirements NRG Disposition:

Nonconformance

==

Description:==

1. The analyst did not scan the samples 172275003, 172275008, and 1. The error has been corrected and the analyst has been instructed on the 172275014 into the batch prior to analysis, however the samples did proper scanning procedures.

Reporting results.remain in their custody at all times.Originator's Name: Amy Scott Quality Review: Data Validator/Group Leader: Melanie Aycock 01-OCT-06 29-SEP-06 Director: Page 1 33 General Engineering Laboratories Form GEL-NCR Rev. 06/05 NCR Report No.: 368031 Revision No.: 1 COMPANY -WIDE NONCONFORMANCE REPORT Mo.Day Yr. Division:

Quality Criteria:

Type: 05-OCT-06 Radiochemistry Specifications Process Instrument Type: Test / Method: Matrix Type: Client Code: GAMMA SPECTROMETER EML HASL 300, 4.5.2.3 Solid YANK Batch ID: Sample Numbers: 574336 See Below Potentially affected work order(s)(SDG):

172275(MSR#06-1282),172873(MSR#06-1313),172875(MSR#06-1312),172879(MSR#06-1311)

Application Issues: Failed RPD for DUP Specification and Requirements NRG Disposition:

Nonconformance

==

Description:==

1. Failed RPD for DUP: The relative percent difference (172275028

1. K-40 and Pb-212 are naturally occurring nuclides.

All other nuclides and 120119654) for K-40 and Pb-212 did not meet the duplication meet within the duplication criteria.

Reporting results.criteria.Originator's Name: Jimmy Hartley Quality Review: Data Validator/Group Leader: 05-OCT-06 Director: Page 1 34 SAMPLE DATA

SUMMARY

35 GENERAL ENGINEERING 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#06-1282 GEL Work Order: 172275 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 General Engineering Laboratories, LLC standard operating procedures.

Please direct any questions to your Project Manager, Cheryl Jones.Reviewed by 36 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: 9807-0000-00IF Project: YANK01204 Sample ID: 172275001 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 13-SEP-06 Receive Date: 21-SEP-06 Collector:

Client Moisture:

16.6%Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.917 +/-0.197 Americium-241 U 0.0336 +/-0.0304 Bismuth-212 0.332 +/-0.297 Bismuth-214 0.594 +/-0.0918 Cesium-134 U 0.0178 +/-0.0337 Cesium-137 U -0.00791 +/-0.0231 Cobalt-60 U -0.032 +/-0.0272 Europium-152 U 0.00865 +/-0.0526 Europium-154 U -0.00226 +/-0.0668 Europium-155 U 0.0769 +/-0.0755 Lead-212 0.826 +/-0.0631 Lead-214 0.596 +/-0.0873 Manganese-54 U -0.00108 +/-0.0247 Niobium-94 U -0.00289 +/-0.021 Potassium-40 12.6 +/-0.924 Radium-226 0.594 +/-0.0918 Silver-108m U 0.00205 +/-0.0182 Thallium-208 0.288 +/-0.0486 0.0541 0.027 0.136 0.0352 0.0227 0.0166 0.0154 0.048 0.0569 0.0429 0.0264 0.0338 0.0207 0.0177 0.140 0.0352 0.0163 0.0178+/-0.197+/-0.0304+/-0.297+/-0.0918+/-0.0337+/-0.0231+/-0.0272+/-0.0526+/-0.0668+/-0.0755+/-0.0631+/-0.0873+/-0.0247+/-0.021+/-0.924+/-0.0918+/-0.0182+/-0.0486 0.119 0.0556 0.293 0.075 0.0486 0.0358 0.0349 0.101 0.125 0.0889 0.0549 0.0711 0.0442 0.0378 0.321 0.075 0.0344 0.0381 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 10/03/06 0635 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1745 571421 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< Result is less than value reported 37 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: 9807-0000-00IF 172275001 Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.38 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-002F 172275002 TS 13-SEP-06 21-SEP-06 Client 14.9%Pro iect: YANK01204 Client ID: YANKOO Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis 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 UI 0.00 U 0.0381 0.434 0.556 U 0.035 U -0.0276 U 0.0211 U -0.0121 U 0.0712 U 0.0585 0.740 0.618 U -0.0246 U -0.00223 12.6 0.556 U 0.00737 0.257+/-0.199+/-0.0369+/-0.350+/-0.106+/-0.0431+/-0.0307+/-0.0298+/-0.0687+/-0.0952+/-0.0674+/-0.0888+/-0.109+/-0.0275+/-0.0244+/-1.09+/-0.106+/-0.0234+/-0.0585 0.163 0.0312 0.179 0.0356 0.0301 0.0211 0.0272 0.0491 0.0863 0.0466 0.0283 0.0383 0.0221 0.0214 0.164 0.0356 0.0173 0.0233+/-0.199+/-0.0369+/-0.350+/-0.106+/-0.0431+/-0.0307+/-0.0298+/-0.0687+/-0.0952+/-0.0674+/-0.0888+/-0.109+/-0.0275+/-0.0244+/-1.09+/-0.106+/-0.0234+/-0.0585 0.325 0.0624 0.358 0.0711 0.0601 0.0421 0.0543 0.0981 0.173 0.0931 0.0566 0.0766 0.0441 0.0428 0.327 0.0711 0.0345 0.0465 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 10/03/06 0650 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1745 571421 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< Result is less than value reported 39 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-002F Project: YANK01204 Sample ID: 172275002 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.40 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-003F 172275003 TS 13-SEP-06 21-SEP-06 Client 14%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 C Curium-242 U Curium-243/244 U 0.Alphaspec Pu, Solid-ALL FSS Plutonium-238 U -0.Plutonium-239/240 U -0.0 Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U Rad Gamma Spec Analysis+/-0.277+/-0.0579+/-0.080 0.0248 0.00 0.043+/-0.293+/-0.0579+/-0.0801 0.125 0.080 0.161 0.175 0.182 pCi/g pCi/g pCi/g pCi/g pCi/g TCI 09/28/06 1156 572120 1 TC1 09/28/06 0935 572121 2 TC1 09/29/06 2230 572122 3+/-0.0532 0.057 +/-0.0532+/-0.0698 0.0604 +/-0.0698 1.79 +/-8.11 6.73 +/-8.1.2 14.1 pCi/g Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.743 +/-0.218 Americium-241 U 0.014 +/-0.0362 Bismuth-212 0.547 +/-0.295 Bismuth-214 0.558 +/-0.109 Cesium-134 UI 0.00 +/-0.0386 Cesium-137 U 0.0402 +/-0.0327 Cobalt-60 U 0.0104 +/-0.0285 Europium-152 U 0.098 +/-0.0702 Europium-154 U -0.032 +/-0.0804 Europium-155 U -0.00541 +/-0.0571 Lead-212 0.628 +/-0.0808 Lead-214 0.585 +/-0.110 Manganese-54 U -0.00284 +/-0.0262 Niobium-94 U -0.00174 +/-0.0241 Potassium-40 13.1 +/-0.962 Radium-226 0.558 +/-0.109 Silver-108m U 0.0131 +/-0.022 Thallium-208 0.247 +/-0.0581 Rad Gas Flow Proportional Counting 0.0704 0.0304 0.175 0.0428 0.0286 0.0243 0.0248 0.0562 0.0651 0.0485 0.0384 0.0369 0.0217 0.0204 0.206 0.0428 0.0204 0.0211+/-0.218+/-0.0362+/-0.295+/-0.109+/-0.0386+/-0.0327+/-0.0285+/-0.0702+/-0.0804+/-0.0571+/-0.0808+/-0.110+/-0.0262+/-0.0241+/-0.962+/-0.109+/-0.022+/-0.0581 0.152 0.0626 0.370 0.0901 0.0604 0.0512 0.0536 0.117 0.141 0.100 0.079 0.0775 0.0462 0.0432 0.453 0.0901 0.0427 0.0447 0.0324 12.3 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 MJH1 10/03/06 0635 574335 4 GFPC, Sr90, solid-ALL FSS Strontium-90 U -0.0 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid-HTD2,ALL FSS Tritium 0839 +/-0.0152 0.014 +/-0.0152 32.4 +/-8.92 5.77 +/-8.93 KSDI 09/28/06 0957 572301 5 DFA1 09/27/06 1825 571884 6 41 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: 9807-0000-003F 172275003 Project: YANK01204 Client ID: YANKOO Vol. Recv.: Parameter Qualifier Result Uncertainty Rad Liquid Scintillation Analysis Liquid Scint C14, Solid AII, FSS Carbon-14 U -0.0626 +/-0.105 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U -9.41 +/-37.1 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U 2.54 +/-7.06 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.165 +/-0.222 LC TPU MDA Units DF Analyst Date Time Batch Mtd 0.0892 +/-0.105 0.181 pCi/g pCilg 26.5 +/-37.1 55.3 AXD2 09/25/06 1910 571880 7 MXPI 09/28/06 1737 571874 8 MXP1 09/29/06 1842 571876 9 KXR1 10/02/06 1055 571877 10 5.86 +/-7.06 12.1 pCi/g 0.183 +/-0.222 0.374 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 09/21/06 1745 571421 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu- 11 -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-l, Modified 10 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery%

Acceptable Limits Americium-243 Plutonium-242 Carrier/Tracer Recovery Carrier/Tracer Recovery Carrier/Tracer Recovery Carrier/Tracer Recovery Carrier/Tracer Recovery Alphaspec Am241, Cm, Solid ALL Alphaspec Pu, Solid-ALL FSS Liquid Scint Pu241, Solid-ALL FE GFPC, Sr90, solid-ALL FSS Liquid Scint Fe55, Solid-ALL FS Liquid Scint Ni63, Solid-ALL FS Liquid Scint Tc99, Solid-ALL FS 94 99 95 92 68 70 63 (15%-125%)

(15%-125%)

(25%-125%)

(25%-125%)

(15%-125%)

(25%-125%)

(15%-125%)

42 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-003F Proiect: YANK01204 Sample ID: 172275003 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.43 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-004F 172275004 TS 13-SEP-06 21-SEP-06 Client 14.4%Proiect: Client ID: Vol. Recv.: YANKO 1204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.863 +/-0.169 Americium-241 U -0.00206 +/-0.058 Bismuth-212 0.377 +/-0.244 Bismuth-214 0.646 +/-0.0986 Cesium- 134 U 0.0312 +/-0.0276 Cesium-137 U -0.00126 +/-0.0161 Cobalt-60 U 0.00622 +/-0.0174 Europium-152 U 0.0205 +/-0.0405.Europium-154 U -0.00568 +/-0.0572 Europium-155 U 0.0483 +1-0.0558 Lead-212 0.775 +/-0.0787 Lead-214 0.667 +/-0.0933 Manganese-54 U -0.00358 +/-0.0178 Niobium-94 U 0.00439 +/-0.0152 Potassium-40 11.9 +/-1.04* Radium-226 0.646 +/-0.0986 Silver-108m U 0.0023 +/-0.0131 Thallium-208 0.264 +/-0.0477 0.0462 0.048 0.0985 0.0267 0.018 0.0141 0.0157 0.0365 0.0491 0.0388 0.0259 0.0269 0.015 0.0136 0.141 0.0267 0.0113 0.0123+/-0.169+/-0.058+/-0.244+/-0.0986+/-0.0276+/-0.0161+/-0.0174+/-0.0405+/-0.0572+/-0.0558+/-0.0787+/-0.0933+/-0.0178+/-0.0152+/-1.04+/-0.0986+/-0.0131+/-0.0477 0.101 0.0992 0.213 0.0568 0.0384 0.0301 0.0344 0.0767 0.106 0.0804 0.0535 0.0566 0.0321 0.0289 0.312 0.0568 0.0241 0.0265 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 10/03/06 0640 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 09/21/06 1745 571421 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< Result is less than value reported 4,4 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-004F Project: YANK01204 Sample ID: 172275004 Client ID: YANKOOI Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.45 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.corn 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-005F 172275005 TS 14-SEP-06 21 -SEP-06 Client 14.5%Proiect: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis 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 0.678 U -0.0294 0.485 0.598 U 0.0242 U 0.0187 U 0.00172 U 0.00129 U -0.0127 U 0.0208 0.747 0.625 U 0.0177 U -0.0084 12.1 0.598 U 0.00158 0.237+/-0.170+/-0.0785+/-0.254+/-0.0828+/-0.0336+/-0.0195+/-0.0209+/-0.0502+/-0.0667+/-0.0552+/-0.0649+/-0.0802+/-0.0212+/-0.0177+/-0.919+/-0.0828+/-0.0174+/-0.0404 0.056 0.0727 0.137 0.0305 0.0214 0.0174 0.018 0.0443 0.0559 0.0506 0.0259 0.0331 0.0193 0.0148 0.147 0.0305 0.0151 0.0179+/-0.170+/-0.0785+/-0.254+/-0.0828+/-0.0336+/-0.0195+/-0.0209+/-0.0502+/-0.0667+/-0.0552+/-0.0649+/-0.0802+/-0.0212+/-0.0177+/-0.919+/-0.0828+/-0.0174+/-0.0404 0.121 0.150 0.292 0.0647 0.0455 0.0369 0.0395 0.093 0.121 0.105 0.0539 0.0693 0.0411 0.0316 0.330 0.0647 0.0319 0.0378 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 10/03/06 1051 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 09/21/06 1745 571421 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< Result is less than value reported 46 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-005F Project: YANK01204 Sample ID: 172275005 ClientID:

YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.47 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-006F 172275006 TS 14-SEP-06 21 -SEP-06 Client 16.3%Project: Client ID: Vol. Recv.: YANKO01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.07 +/-0.186 Americium-241 U 0.00123 +/-0.0301 Bismuth-212 0.559 +/-0.281 Bismuth-214 0.661 +/-0.101 Cesium-134 UI 0.00 +/-0.0326 Cesium-137 U -0.00834 +/-0.0233 Cobalt-60 U -0.00223 +/-0.022 Europium-152 U -0.0377 +/-0.0521'Europium-154 U 0.0272 +/-0.072 Europium-155 U 0.0135 +/-0.0507 Lead-212 0.743 +/-0.0793 Lead-214 0.653 +/-0.0828 Manganese-54 U 0.00649 +/-0.0239 Niobium-94 U 0.0181 +/-0.0214 Potassium-40 12.9 +/-0.976 Radium-226 0.661 +/-0.101 Silver-108m U 0.000501 +/-0.0181 Thallium-208 0.274 +/-0.0451 0.0767 0.0282 0.145 0.0358 0.027 0.0194 0.0184 0.045 0.0639 0.0466 0.0384 0.0328 0.0205 0.0195 0.203 0.0358 0.016 0.0198+/-0.186+/-0.0301+/-0.281+/-0.101+/-0.0326+/-0.0233+/-0.022+/-0.0521+/-0.072+/-0.0507+/-0.0793+/-0.0828+/-0.0239+/-0.0214+/-0.976+/-0.101+/-0.0181+/-0.0451 0.164 0.058 0.311 0.0763 0.0572 0.0414 0.041 0.0949 0.139 0.0962 0.079 0.0691 0.044 0.0414 0.448 0.0763 0.034 0.042 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 10/03/06 1049 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 09/21/06 1745 571421 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< Result is less than value reported 48 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-006F Project: YANK01204 Sample ID: 172275006 Client ID: YANKOO Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 hI Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.49 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-007F 172275007 TS 14-SEP-06 21 -SEP-06 Client 16.3%Project: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.04 +/-0.231 Americium-241 U 0.0164 +/-0.0391 Bismuth-212 0.619 +/-0.380 Bismuth-214 0.704 +/-0.150 Cesium- 134 UI 0.00 +/-0.0551 Cesium-137 U -0.0154 +/-0.0318 Cobalt-60 U 0.0125 +/-0.0307 Europium-152 U -0.026 +/-0.0732 Europium-154 U 0.0051 +/-0.100 Europium-155 U 0.0526 +/-0.0654 Lead-212 0.771 +/-0.0987 Lead-214 0.915 +/-0.122 Manganese-54 U -0.0344 +/-0.0384 Niobium-94 U 0.0132 +/-0.031 Potassium-40 14.7 +/-1.13 Radium-226 0.704 +/-0.150 Silver-108m U -0.0191 +/-0.0299 Thallium-208 0.300 +/-0.0768 0.0956 0.0342 0.209 0.0501 0.035 0.0259 0.0267 0.0599 0.0842 0.0562 0.0509 0.0416 0.0248 0.0268 0.236 0.0501 0.0221 0.0242+/-0.231+/-0.0391+/-0.380+/-0.150+/-0.0551+/-0.0318+/-0.0307+/-0.0732+/-0.100+/-0.0654+/-0.0987+/-0.122+/-0.0384+/-0.031+/-1.13+/-0.150+/-0.0299+/-0.0768 0.204 0.0705 0.443 0.105 0.0737 0.055 0.0582 0.126 0.181 0.116 0.104 0.0874 0.0529 0.0563 0.520 0.105 0.0464 0.0513 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 10/03/06 0942 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1745 571421 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< Result is less than value reported 50 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-007F Project: YANK01204 Sample ID: 172275007 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MI)A Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.51 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-008F 172275008 TS 14-SEP-06 21-SEP-06 Client 19%Proiect: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd 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 0.0532 0.00721 0.00679+/-0.0818+/-0.0141+/-0.0133 0.0254 0.027 0.0254+/-0.082+/-0.0142+/-0.0133 0.0937 +/-0.131 0.0738 +/-0.131 0.00832 +/-0.079 0.0617 +/-0.079 Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U 4.23 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.976 Americium-241 U -0.0602 Bismuth-212 0.758 Bismuth-214 0.583 Cesium- 134 UI 0.00 Cesium-137 U -0.0136 Cobalt-60 U 0.00942 Europium-152 U -0.0506 Europium-154 U 0.0206 Europium-155 UI 0.00 Lead-212 0.855 Lead-214 0.640 Manganese-54 U 0.0129 Niobium-94 U 0.00328 Potassium-40 15.0 Radium-226 0.583 Silver-108m U 0.0147 Thallium-208 0.284 Rad Gas Flow Proportional Counting GFPC, Sr9O, solid-ALL FSS Strontium-90 U 0.00217 Rad Liquid Scintillation Analysis+/-8.60 7.03 +/-8.61+/-0.198+/-0.0632+/-0.285+/-0.106+/-0.0311+/-0.0191+/-0.0186+/-0.0475-/-0.0594+/-0.0721+/-0.088 k/-0.0941+/-0.0261+/-0.0155+/-1.32+/-0.106+/-0.016 4/-0.0503 0.0581 0.0478 0.106 0.029 0.0234 0.0156 0.0169 0.0375 0.0529 0.0427 0.0236 0.0296 0.0148 0.0136 0.123 0.029 0.0144 0.0148+/-0.198+/-0.0632+/-0.285+/-0.106+/-0.0311+/-0.0191+/-0.0186+/-0.0475+/-0.0594+/-0.0721+/-0.088+/-0.0941+/-0.0261+/-0.0155+/-1.32+/-0.106+/-0.016+/-0.0503 0.127 0.135 0.127 0.218 0.194 14.8 0.125 0.099 0.229 0.0618 0.0495 0.0335 0.0373 0.0793 0.115 0.0885 0.0492 0.0623 0.0321 0.0293 0.282 0.0618 0.0304 0.0316 0.033 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 TC1 09/28/06 1156 572120 1 TC1 09/28/06 1156 572121 2 TCI 09/29/06 2246 572122 3 MJH1 10/03/06 0943 574335 4 KSD1 09/28/06 0734 572301 5 DFA1 09/27/06 1841 571884 6+/-0.017 0.0139 +/-0.017 LSC, Tritium Dist, Solid-HTD2,ALL FSS Tritium 182 +/-16.1 6.41 +/-16.4 13.7 pCi/g 52 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: 9807-0000-008F 172275008 Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis Liquid Scint C14, Solid AII, FSS Carbon-14 U -0.0464 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U 0.774 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -6.65 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.0457+/-0.099 0.0838 +/-0.099+/-38.8 27.4 +/-38.8+/-7.14 6.17 +/-7.14+/-0.214 0.180 +/-0.214 0.170 57.2 pCi/g pCi/g AXD2 09/25/06 2023 571880 7 MXPI 09/28/06 1753 571874 8 MXPI 09/29/06 1929 571876 9 KXR1 10/02/06 1127 571877 10 12.7 pCi/g 0.368 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 09/21/06 1745 571421 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu-i 1-RC Modified 3 DOE EML HASL-300, Pu- 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-0I 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 Carrier/Tracer Recovery Carrier/Tracer Recovery Carrier/Tracer Recovery Carrier/Tracer Recovery Carrier/Tracer Recovery Alphaspec Am241, Cm, Solid ALL Alphaspec Pu, Solid-ALL FSS Liquid Scint Pu241, Solid-ALL FS GFPC, Sr90, solid-ALL FSS Liquid Scint Fe55, Solid-ALL FS Liquid Scint Ni63, Solid-ALL FS Liquid Scint Tc99, Solid-ALL FS 82 94 91 83 68 66 63 (15%-125%)

(15%-125%)

(25%-125%)

(25%-125%)

(15%-125%)

(25%-125%)

(15%-125%)

53 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-008F Project: YANK01204 Sample ID: 172275008 Client ID: YANKOOI Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU M]DA Units DF Analyst Date Time Batch Mtd Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-009F 172275009 TS 14-SEP-06 21-SEP-06 Client 14%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 Americium-241 B ismuth-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 1.04 U 0.0151 U 0.460 0.642 U 0.0541 U 0.033 U 0.00639 U -0.119 U -0.0098 U 0.0758 0.719 0.805 U -0.00895 U 0.0464 12.8 0.642 U -0.0253 0.269+/-0.248+/-0.045+/-0.476+/-0.127+/-0.0521+/-0.0399+I-0.0403+/-0.112+/-0.139+/-0.0709+/-0.126+/-0.131+1-0.0334+/-0.0345+I-1.33+I-0.127+1-0.027+/-0.0623 0.0903 0.0347 0.232 0.0505 0.0356 0.0297 0.034 0.055 0.0974 0.0579 0.0395 0.0432 0.0278 0.0262 0.260 0.0505 0.0212 0.030+/-0.248+/-0.045+/-0.476+/-0.127+/-0.0521+/-0.0399+1-0.0403+/-0.112+/-0.139+/-0.0709+/-0.126+/-0.131+/-0.0334+/-0.0345+/-1.33+/-0.127+/-0.027+/-0.0623 0.180 0.0694 0.464 0.101 0.0711 0.0593 0.0679 0.110 0.195 0.116 0.079 0.0863 0.0555 0.0525 0.520 0.101 0.0424 0.0599 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 10/03/06 0953 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1745 571421 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< Result is less than value reported 55 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-009F Project: YANK01204 Sample ID: 172275009 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.56 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-01 OF 172275010 TS 14-SEP-06 21-SEP-06 Client 13.7%Proiect: YANK01204 Client ID: YANKOO Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.946 +/-0.187 Americium-241 U 0.0349 +/-0.117 Bismuth-212 0.501 +/-0.253 Bismuth-214 0.503 +/-0.0831 Cesium-134 U 0.0333 +/-0.0331 Cesium-137 0.0286 +/-0.0217 Cobalt-60 U 0.0223 +/-0.0188 Europium-152 U -0.00927 +/-0.0519 Europium-154 U -0.00156 +/-0.0563 Europium-155 U 0.0644 +/-0.0532 Lead-212 0.873 +/-0.0895 Lead-214 0.606 +/-0.0895 Manganese-54 U 0.0031 +/-0.0171 Niobium-94 U -0.00738 +/-0.0168 Potassium-40 12.7 +/- 1. 11 Radium-226 0.503 +/-0.0831 Silver-108m U -0.0152 +/-0.0167 Thallium-208 0.271 +/-0.0478 0.0607 0.0919 0.106 0.0286 0.020 0.0135 0.0177 0.0385 0.0482 0.047 0.0217 0.0282 0.0147 0.014 0.106 0.0286 0.0134 0.0142+/-0.187+/-0.117+/-0.253+/-0.0831+/-0.0331+/-0.0217+/-0.0188+/-0.0519+/-0.0563+/-0.0532+/-0.0895+/-0.0895+/-0.0171+/-0.0168+/-1.11+/-0.0831+/-0.0167+/-0.0478 0.128 0.188 0.225 0.060 0.0419 0.0285 0.0379 0.0799 0.103 0.0963 0.0448 0.0586 0.0311 0.0295 0.238 0.060 0.0279 0.0299 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 10/03/06 1320 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 09/21/06 1745 571421 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< Result is less than value reported 57 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-01OF Project: YANKO 1204 Sample ID: 172275010 ClientID:

YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: 9807-0000-011F Project: YANK01204 Sample ID: 172275011 ClientlD:

YANK001 Matrix: TS Vol. Recv.: Collect Date: 14-SEP-06 Receive Date: 21-SEP-06 Collector:

Client Moisture:

16.5%Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.999 +/-0.202 Americium-241 U -0.11 +/-0.0806 Bismuth-212 0.572 +/-0.334 Bismuth-214 0.604 +/-0.101 Cesium-134 U 0.0109 +/-0.0337 Cesium-137 U -0.0232 +/-0.0224 Cobalt-60 U 0.0312 +/-0.0237 Europium-152 U -0.0113 +/-0.0579 Europium-154 U -0.0377 +/-0.0663 Europium-155 U 0.0637 +/-0.064 Lead-212 0.892 +/-0.0934 Lead-214 0.637 +/-0.099 Manganese-54 U 0.0212 +/-0.0239 Niobium-94 U 0.0181 +/-0.0195 Potassium-40 13.5 +/-1.18 Radium-226 0.604 +/-0.101 Silver-108m U -0.00596 +/-0.0191 Thallium-208 0.274 +/-0.0528 0.0658 0.0678 0.149 0.035 0.0206 0.0172 0.0212 0.0501 0.0526 0.0574 0.0297 0.0347 0.0213 0.0175 0.137 0.035 0.0162 0.0187+/-0.202+/-0.0806+/-0.334+/-0.101+/-0.0337+/-0.0224+/-0.0237+/-0.0579+/-0.0663+/-0.064+/-0.0934+/-0.099+/-0.0239+/-0.0195+/-1.18+/-0.101+/-0.0191+/-0.0528 0.142 0.139 0.318 0.0743 0.0441 0.0368 0.0462 0.105 0.116 0.118 0.0615 0.0728 0.0452 0.0373 0.313 0.0743 0.0342 0.0397 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 MJHI 10/03/06 1321 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1745 571421 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< Result is less than value reported 59 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-011F Proiect: YANK01204 Sample ID: 172275011 Client ID: YANKOO Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-012F 172275012 TS 14-SEP-06 21-SEP-06 Client 16.5%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.909 +/-0.218 Americium-241 U -0.0317 +/-0.155 Bismuth-212 0.593 +/-0.345 Bismuth-214 0.657 +/-0.0919 Cesium-134 UI 0.00 +/-0.0345 Cesium- 137 U 0.0436 +/-0.0365 Cobalt-60 U -0.00429 +/-0.0219 Europium-152 U 0.0138 +/-0.066 Europium-154 U -0.0425 +/-0.0811 Europium-155 U 0.0464 +/-0.0703 Lead-212 0.893 +/-0.0692 Lead-214 0.700 +/-0.104 Manganese-54 U 0.041 +/-0.0265 Niobium-94 U 0.0269 +/-0.021 Potassium-40 13.9 +/-1.13 Radium-226 0.657 +/-0.0919 Silver-108m U -0.00418 +/-0.026 Thallium-208 0.228 +/-0.0521 0.0682 0.0882 0.161 0.0403 0.0287 0.0224 0.0174 0.0562 0.0627 0.0638 0.0314 0.0397 0.0215 0.0187 0.189 0.0403 0.0185 0.0214+/-0.218+/-0.155+/-0.345+/-0.0919+/-0.0345+/-0.0365+/-0.0219+/-0.066+/-0.0811+/-0.0703+/-0.0692+/-0.104+/-0.0265+/-0.021+/-1.13+/-0.0919+/-0.026+/-0.0521 0.148 0.182 0.343 0.0854 0.0606 0.0476 0.0392 0.118 0.137 0.132 0.0652 0.0832 0.046 0.0399 0.421 0.0854 0.0391 0.0453 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 10/03/06 1321 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1745 571421 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< Result is less than value reported 61 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-012F Project: YANK01204 Sample ID: 172275012 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-012FS 172275013 TS 14-SEP-06 21-SEP-06 Client 16.8%Project: YANK01204 Client ID: YANKOO Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis 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 0.848 U -0.00901 0.794 0.689 U 0.0733 UI 0.00 U -0.0099 U 0.0273 U -0.0104 UI 0.00 0.737 0.714 U 0.0221 U 0.0163 13.7 0.689 U -0.0206 0.333+/-0.206+/-0.0398+/-0.464+/-0.120+/-0.0547+/-0.0737+/-0.0316+/-0.0711+/-0.099+/-0.0984+/-0.0899+/-0.104+/-0.0316+/-0.0292+/-1.14+/-0.120+/-0.0243+/-0.0617 0.0808 0.0344 0.183 0.045 0.0352 0.0254 0.0255 0.0612 0.0705 0.0517 0.0456 0.0443 0.0276 0.0256 0.234 0.045 0.0205 0.0233+/-0.206+/-0.0398+/-0.464+/-0.120+/-0.0547+/-0.0737+/-0.0316+/-0.0711+/-0.099+/-0.0984+/-0.0899+/-0.104+/-0.0316+/-0.0292+/-1.14+/-0.120+/-0.0243+/-0.0617 0.174 0.0707 0.390 0.0951 0.0739 0.0537 0.0555 0.128 0.153 0.107 0.0937 0.0926 0.0585 0.0538 0.513 0.0951 0.0431 0.0493 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 10/03/06 1321 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 09/21/06 1745 571421 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< Result is less than value reported 63 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-012FS Project: YANK01204 Sample ID: 172275013 Client ID: YANKOOI Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-013F 172275014 TS 14-SEP-06 21-SEP-06 Client 14.6%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch Mtd Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U 0.0935 Curium-242 U 0.00 Curium-243/244 U -0.026 Alphaspec Pu, Solid-ALL FSS Plutonium-238 U 0.0164 Plutonium-239/240 U -0.0719 Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U 4.77 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.02 Americium-241 U -0.0146 4 Bismuth-212 0.755 Bismuth-214 0.547 Cesium-134 U 0.0516 4 Cesium-137 U -0.00251 4 Cobalt-60 U 0.0212 4 Europium-152 U -0.017 4 Europium-154 U -0.0293 *Europium-155 U 0.0349 4 Lead-212 0.791 4 Lead-214 0.703 Manganese-54 U 0.0418 -Niobium-94 U 0.00697 4 Potassium-40 15.2 Radium-226 0.547 Silver-108m U-0.000887 4 Thallium-208 0.322 4 Rad Gas Flow Proportional Counting GFPC, Sr90, solid-ALL FSS Strontium-90 U 0.0134 4 Rad Liquid Scintillation Analysis+/-0.132 4/-0.0752 4/-0.0294 0.0561 0.00 0.0561+/-0.133+/-0.0752+/-0.0296+/-0.110 0.0863 +/-0.110 4/-0.0894 0.103 +/-0.0897+/-8.34 6.78 +/-8.35+/-0.172 4/-0.0306+/-0.351+/-0.111 4/-0.0574 4/-0.0261-/-0.0288 4/-0.0579 4/-0.0998 4/-0.0463 4/-0.0798+/-0.097-/-0.0282 4/-0.0239+/-1.17+/-0.111 4/-0.0188-/-0.0575 0.0702 0.0251 0.153 0.0394 0.0281 0.0217 0.0259 0.0467 0.0684 0.0427 0.0376 0.0344 0.021 0.0204 0.176 0.0394 0.0163 0.019+/-0.172+/-0.0306+/-0.351+/-0.111+/-0.0574+/-0.0261+/-0.0288+/-0.0579+/-0.0998+/-0.0463+/-0.0798+/-0.097+/-0.0282+/-0.0239+/-1.17+/-0.111+/-0.0188+/-0.0575 0.210 0.104 0.210 0.242 0.276 14.2 0.153 0.0518 0.329 0.0838 0.0597 0.0463 0.0566 0.0986 0.150 0.0886 0.0775 0.0726 0.0451 0.0433 0.400 0.0838 0.0347 0.0406 0.0368 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 pCilg pCilg pCi/g pCilg pCi/g pCi/g pCi/g pCi/g pCilg pCilg pCilg pCi/g pCilg TCI 09/28/06 1156 572120 1 TCI 09/28/06 1156 572121 2 TCI 09/29/06 2302 572122 3 MJHI 10/03/06 1322 574335 4 KSD1 09/28/06 0734 572301 5 DFAI 09/27/06 1858 571884 6-/-0.0211 0.0159 +/-0.0211 LSC, Tritium Dist, Solid-HTD2,ALL FSS Tritium U 3.43 +/-7.85 6.38 +/-7.85 13.6 65 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: 9807-0000-013F 172275014 Project: Client ID: Vnl Rpc'v YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis Liquid Scint C14, Solid AllFSS Carbon-14 U -0.115 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U -26.8 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -3.05 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.153+/-0.101 0.0866 +/-0.101 0.176+/-36.1 26.4 +/-36.1 55.2+/-9.26 7.85 +/-9.26 16.2+/-0.193 0.159 +/-0.193 0.324 pCilg pCi/g pCi/g pCi/g AXD2 09/25/06 2135 571880 7 MXP1 09/28/06 1809 571874 8 MXP1 09/29/06 2015 571876 9 KXR1 10/02/06 1159 571877 10 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 09/21/06 1745 571421 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu- 11-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-1, Modified 10 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery % Acceptable Limits Americium-243 Plutonium-242 Carrier/Tracer Recovery Carrier/Tracer Recovery Carrier/Tracer Recovery Carrier/Tracer Recovery Carrier/Tracer Recovery Alphaspec Am241, Cm, Solid ALL Alphaspec Pu, Solid-ALL FSS Liquid Scint Pu24 1, Solid-ALL FýGFPC, Sr90, solid-ALL FSS Liquid Scint Fe55, Solid-ALL FS Liquid Scint Ni63, Solid-ALL FS Liquid Scint Tc99, Solid-ALL FS 63 93 100 89 66 53 72 (15%-125%)

(15%-125%)

(25%-125%)

(25%-125%)

(15%-125%)

(25%-125%)

(15%-125%)

66 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-013F Project: YANK01204 Sample ID: 172275014 ClientID:

YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.67 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-014F 172275015 TS 18-SEP-06 21-SEP-06 Client 15%Proiect: YANK01204 Client ID: YANKOO Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.938 +/-0.203 Americium-241 U -0.00605 +/-0.0653 Bismuth-212 0.845 +/-0.285 Bismuth-214 0.584 +/-0.124 Cesium-134 UI 0.00 +/-0.0329 Cesium-137 U 0.00818 +/-0.0237 Cobalt-60 U 0.011 +/-0.0186 Europium-152 U -0.0249 +/-0.0482 Europium-154 U 0.0465 +/-0.0658 Europium-155 U 0.0523 +/-0.0687 Lead-212 0.950 +/-0.0975 Lead-214 0.708 +/-0.109 Manganese-54 U 0.00474. +/-0.0277 Niobium-94 U 0.0238 +/-0.0237 Potassium-40 15.8 +/-1.38 Radium-226 0.584 +/-0.124 Silver-108m U -0.00146 +/-0.0178 Thallium-208 0.307 +/-0.0526 0.0562 0.0549 0.119 0.0344 0.0263 0.0208 0.0163 0.0388 0.0603 0.0453 0.0271 0.0295 0.0178 0.0166 0.128 0.0344 0.0146 0.0172+/-0.203+/-0.0653+/-0.285+/-0.124+/-0.0329+/-0.0237+/-0.0186+/-0.0482+/-0.0658+/-0.0687+/-0.0975+/-0.109+/-0.0277+/-0.0237+/-1.38+/-0.124+/-0.0178+/-0.0526 0.123 0.114 0.259 0.0732 0.0557 0.0441 0.0366 0.0825 0.131 0.0942 0.0565 0.0626 0.0383 0.0354 0.296 0.0732 0.0311 0.0368 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 10/03/06 1322 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1745 571421 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< Result is less than value reported 68 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-014F Project: YANK01204 Sample ID: 172275015 Client ID: YANKOO Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.69 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-015F 172275016 TS 18-SEP-06 21-SEP-06 Client 11.3%Proiect: YANK01204 Client ID: YANKOO Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis 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 0.702 U 0.0258 0.486 0.491 U 0.0563 U 0.0129 U 0.00658 U -0.0298 U -0.0013 U 0.0486 0.686 0.552 U -0.00757 U-0.000502 11.8 0.491 U -0.00694 0.215+/-0.169+/-0.0299+/-0.316+/-0.103+/-0.048+/-0.0242+/-0.0246+/-0.0474+/-0.0656+/-0.0744+/-0.0571+/-0.082+/-0.028+/-0.0218+/-1.02+/-0.103+/-0.0193+/-0.0455 0.0373 0.0297 0.148 0.0345 0.027 0.0219 0.0216 0.0416 0.056 0.0449 0.0278 0.0324 0.0199 0.0187 0.181 0.0345 0.0169 0.0192+/-0.169+/-0.0299+/-0.316+/-0.103+/-0.048+/-0.0242+/-0.0246+/-0.0474+/-0.0656+/-0.0744+/-0.0571+/-0.082+/-0.028+/-0.0218+/-1.02+/-0.103+/-0.0193+/-0.0455 0.0864 0.0611 0.318 0.0739 0.0573 0.0466 0.0477 0.0883 0.124 0.0929 0.0578 0.0684 0.0429 0.040 0.408 0.0739 0.0358 0.0411 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 10/03/06 1323 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 09/21/06 1745 571421 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< Result is less than value reported 70 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-015F Project: YANK01204 Sample ID: 172275016 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.71 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-016F 172275017 TS 18-SEP-06 21-SEP-06 Client 15.5%Proiect: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis 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 -0.0807 0.705 0.588 UI 0.00 U 0.00601 U -0.00939 U -0.0448 U 0.0344 U -0.03 0.776 0.679 0.0304 U 0.00961 14.1 0.588 U 0.00385 0.264+/-0.139+/-0.109+/-0.192+/-0.0736+/-0.0229+/-0.0211+/-0.0171+/-0.0436+/-0.0517+/-0.0552+/-0.0539+/-0.0763+/-0.0219+/-0.0156+/-0.801+/-0.0736+/-0.0144+/-0.0388 0.0499 0.0814 0.099 0.0279 0.0134 0.0157 0.0139 0.0367 0.047 0.0492 0.0231 0.0287 0.0132 0.0142 0.117 0.0279 0.0127 0.0122+/-0.139+/-0.109+/-0.192+/-0.0736+/-0.0229+/-0.0211+/-0.0171+/-0.0436+/-0.0517+/-0.0552+/-0.0539+/-0.0763+/-0.0219+/-0.0156+/-0.801+/-0.0736+/-0.0144+/-0.0388 0.106 0.169 0.211 0.0585 0.0287 0.0331.0.0302 0.0767 0.101 0.102 0.0479 0.0599 0.0281 0.0298 0.258 0.0585 0.0267 0.026 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 10/03/06 1323 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 09/21/06 1745 571421 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< Result is less than value reported 72 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-016F Proiect: YANK01204 Sample ID: 172275017 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 R Sample.results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.73 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-017F 172275018 TS 18-SEP-06 21-SEP-06 Client 14.2%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.687 Americium-241 U 0.0675 Bismuth-212 0.582 Bismuth-214 0.537 Cesium-134 UI 0.00 Cesium-137 0.0334 Cobalt-60 U 0.00613 Europium-152 U -0.011 Europium-154 U 0.0334 Europium-155 U 0.0628 Lead-212 0.727 Lead-214 0.545 Manganese-54 U 0.0189 Niobium-94 U 0.00811 Potassium-40 12.8 Radium-226 0.537 Silver-108m U -0.00478 Thallium-208 0.244+/-0.127+/-0.0841+/-0.214+/-0.0692+/-0.0214+/-0.0292+/-0.0115+/-0.0452+/-0.0437+/-0.0471+/-0.0505+/-0.0642+/-0.0168+/-0.0127+/-0.696+/-0.0692+/-0.0128+/-0.0341 0.0429 0.0478 0.0884 0.0241 0.0165 0.0119 0.0126 0.0348 0.0391 0.0445 0.0214 0.0253 0.012 0.0117 0.0872 0.0241 0.0109 0.0115+/-0.127+/-0.0841+/-0.214+/-0.0692+/-0.0214+/-0.0292+/-0.0115+/-0.0452+/-0.0437+/-0.0471+/-0.0505+/-0.0642+/-0.0168+/-0.0127+/-0.696+/-0.0692+/-0.0128+/-0.0341 0.0915 0.0987 0.188 0.0506 0.0347 0.0253 0.0272 0.0725 0.0839 0.0916 0.0441 0.0527 0.0256 0.0247 0.195 0.0506 0.0229 0.0244 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 10/03/06 1323 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 09/21/06 1745 571421 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< Result is less than value reported 74 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-017F Project: YANK01204 Sample ID: 172275018 Client ID: YANKOO Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.75 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: Parameter Qualifier Result Ui Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.923 Americium-241 U 0.0219 Bismuth-212 0.440 Bismuth-214 0.464 Cesium-134 U 0.0248 Cesium-137 U 0.00239 Cobalt-60 U -0.00503 Europium-152 U -0.0649 Europium-154 U 0.0374 Europium-155 U 0.0114 Lead-212 0.691 Lead-214 0.624 Manganese-54 U 0.0193 Niobium-94 U 0.00598 Potassium-40 13.2 Radium-226 0.464 Silver-108m U 0.00189 Thallium-208 0.251 9807-0000-018F 172275019 TS 18-SEP-06 21-SEP-06 Client 14.8%Project: Client ID: Vol. Recv.: YANK01204 YANK00l ncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd+/-0.174+/-0.0658+/-0.270+/-0.0854+/-0.0274+/-0.0186+/-0.0201+/-0.0619+/-0.0633+/-0.0528+/-0.0767+/-0.0813+/-0.0205+/-0.0168+/-1.11+/-0.0854+/-0.0166+/-0.0431 0.068 0.0546 0.126 0.0291 0.0208 0.016 0.0164 0.0411 0.0564 0.0483 0.0251 0.0297 0.0153 0.0153 0.152 0.0291 0.0147 0.0153+/-0.174+/-0.0658+/-0.270+/-0.0854+/-0.0274+/-0.0186+/-0.0201+/-0.0619+/-0.0633+/-0.0528+/-0.0767+/-0.0813+/-0.0205+/-0.0168+/-1.11+/-0.0854+/-0.0166+/-0.0431 0.136 0.109 0.252 0.0582 0.0415 0.032 0.0329 0.0821 0.113 0.0965 0.0501 0.0594 0.0305 0.0305 0.304 0.0582 0.0294 0.0305 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 10/03/06 1338 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 09/21/06 1745 571421 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< Result is less than value reported 76 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-018F Project: YANK01204 Sample ID: 172275019 Client ID: YANKOO0 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 R Sampleresults are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.77 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-018FS 172275020 TS 18-SEP-06 21-SEP-06 Client 14.2%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.691 +/-0.160 Americium-241 U 0.000277 +/-0.0873 Bismuth-212 0.470 +/-0.304 Bismuth-214 0.547 +/-0.110 Cesium-134 U 0.0256 +/-0.0423 Cesium-137 U 0.00688 +/-0.021 Cobalt-60 U 0.0011 +/-0.0226 Europium-152 U 0.00634 +/-0.0716 Europium-154 U -0.0402 +/-0.0712 Europium-155 U -0.0112 +/-0.0615 Lead-212 0.799 +/-0.0923 Lead-214 0.544 +/-0.102 Manganese-54 U 0.0253 +/-0.024 Niobium-94 U -0.00717 +/-0.0195 Potassium-40 13.3 +/-1.21 Radium-226 0.547 +/-0.110 Silver-108m U 0.000576 +/-0.0187 Thallium-208 0.268 +/-0.0467 0.0638 0.0698 0.135 0.0369 0.0229 0.0183 0.0191 0.0485 0.0566 0.0533 0.0276 0.0333 0.0201 0.016 0.138 0.0369 0.0163 0.0177+/-0.160+/-0.0873+/-0.304+/-0.110+/-0.0423+/-0.021+/-0.0226+/-0.0716+/-0.0712+/-0.0615+/-0.0923+/-0.102+/-0.024+/-0.0195+/-1.21+/-0.110+/-0.0187+/-0.0467 0.127 0.140 0.271 0.0738 0.0459 0.0366 0.0383 0.097 0.113 0.107 0.0553 0.0666 0.0402 0.0319 0.275 0.0738 0.0326 0.0353 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 10/03/06 1338 574335 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1745 571421 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< Result is less than value reported 78 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-018FS Project: YANK01204 Sample ID: 172275020 Client ID: YANKOOl Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.79 GENERAL ENGINEERING 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 Report Date: October 5, 2006 Project: Soils PO# 002332 Client Sample ID: 9807-0000-019F Project: YANK01204 Sample ID: 172275021 ClientID:

YANK001 Matrix: TS Vol. Recv.: Collect Date: 18-SEP-06 Receive Date: 21-SEP-06 Collector:

Client Moisture:

16.4%Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.781 +/-0.176 Americium-241 U -0.0732 +/-0.111 Bismuth-212 0.448 +/-0.205 Bismuth-214 0.550 +/-0.0849 Cesium-134 UI 0.00 +/-0.0362 Cesium-137 U-0.000324

+/-0.0172 Cobalt-60 U 0.0165 +/-0.0175 Europium-152 U -0.00565 +/-0.0423 Europium-154 U 0.0409 +/-0.0545 Europium-155 U 0.0304 +/-0.0501 Lead-212 0.736 +/-0.0767 Lead-214 0.535 +/-0.0837 Manganese-54 U 0.0163 +/-0.0197 Niobium-94 U 0.0159 +/-0.0221 Potassium-40 13.2 +/-1.16 Radium-226 0.550 +/-0.0849 Silver-108m U 0.0141 +/-0.0142 Thallium-208 0.280 +/-0.0459 0.0467 0.0891 0.114 0.0243 0.0187 0.0152 0.0164 0.0372 0.050 0.0458 0.0221 0.0272 0.0146 0.0155 0.128 0.0243 0.013 0.0121+/-0.176+/-0.111+/-0.205+/-0.0849+/-0.0362+/-0.0172+/-0.0175+/-0.0423+/-0.0545+/-0.0501+/-0.0767+/-0.0837+/-0.0197+/-0.0221+/-1.16+/-0.0849+/-0.0142+/-0.0459 0.0998 0.183 0.240 0.0514 0.0393 0.032 0.0353 0.0774 0.107 0.094 0.0456 0.0566 0.031 0.0324 0.280 0.0514 0.0272 0.0257 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 10/02/06 1140 574336 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 09/21/06 1749 571423 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< Result is less than value reported 80 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-019F Project: YANK01204 Sample ID: 172275021 Client ID: YANK00I Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MIA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.81 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-020F 172275022 TS 18-SEP-06 21 -SEP-06 Client 15.3%Proiect: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis 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 0.903 U 0.0644 0.768 0.500 UI 0.00 U 0.0353 U 0.00823 U 0.00463 U 0.00445 U 0.0843 0.904 0.599 U 0.0201 U 0.0139 14.1 0.500 U -0.0173 0.283+/-0.174+/-0.0757+/-0.253+/-0.0932+/-0.0427+/-0.0213+/-0.0247+/-0.0538+1-0.067+/-0.0702+/-0.0912+/-0.0939+/-0.0415+/-0.0214+/-1.21+/-0.0932+/-0.0177+/-0.0422 0.0588 0.071 0.122 0.0321 0.0229 0.0183 0.019 0.0479 0.0576 0.0481 0.0272 0.0341 0.0181 0.0168 0.156 0.0321 0.0144 0.016+/-0.174+/-0.0757+/-0.253+/-0.0932+/-0.0427+/-0.0213+/-0.0247+/-0.0538+/-0.067+/-0.0702+/-0.0912+/-0.0939+/-0.0415+/-0.0214+/-1.21+/-0.0932+/-0.0177+/-0.0422 0.127 0.145 0.262 0.068 0.0484 0.0388 0.0415 0.100 0.125 0.0992 0.0563 0.0713 0.0385 0.0355 0.347 0.068 0.0305 0.0339 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 10/02/06 1342 574336 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1749 571423 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< Result is less than value reported 82 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-020F Proiect: YANK01204 Sample ID: 172275022 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.83 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-021F 172275023 TS 18-SEP-06 21 -SEP-06 Client 14.2%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis 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 0.804 U 0.00322 U 0.341 0.573 U 0.0536 UI 0.00 U -0.026 U 0.0168 U 0.0284 Ul 0.00 0.605 0.597 U 0.0308 U -0.0104 11.8 0.573 U 0.00472 0.217+/-0.168+/-0.0321+/-0.296+/-0.0993+/-0.0434+/-0.0652+/-0.0285+/-0.0573+/-0.0712+/-0.0795+/-0.0705+/-0.0881+/-0.0275+/-0.021+/-1 .02+/-0.0993+/-0.0192+/-0.0616 0.0754 0.0295 0.169 0.0365 0.0277 0.0212 0.0219 0.0505 0.0628 0.0449 0.0398 0.0356 0.0227 0.0175 0.189 0.0365 0.0176 0.0209+/-0.168+/-0.0321+/-0.296+/-0.0993+/-0.0434+/-0.0652+/-0.0285+/-0.0573+/-0.0712+/-0.0795+/-0.0705+/-0.0881+/-0.0275+/-0.021+/-1.02+/-0.0993+/-0.0192+/-0.0616 0.161 0.0607 0.357 0.0772 0.0582 0.0448 0.0474 0.106 0.136 0.0928 0.0817 0.0744 0.048 0.0371 0.415 0.0772 0.0371 0.044 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 10/02/06 1342 574336 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 09/21/06 1749 571423 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< Result is less than value reported 84 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-021F Project: YANK01204 Sample ID: 172275023 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.85 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-022F 172275024 TS 14-SEP-06 21 -SEP-06 Client 12.7%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis 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 0.768 U 0.040 0.533 0.569 UI 0.00 U 0.0288 U 0.0109 U -0.00332 U -0.0303 U 0.0221 0.813 0.604 U -0.0119 U 0.00375 13.8 0.569 U 0.0117 0.257+/-0.137+/-0.104+/-0.205+/-0.0753+/-0.023+/-0.0254+/-0.0158+/-0.0447+/-0.0481+/-0.0517+/-0.0536+/-0.0652+/-0.0153+/-0.0147+/-0.766+/-0.0753+/-0.0139+/-0.0386 0.0508 0.0846 0.103 0.0272 0.0168 0.0144 0.0145 0.0351 0.0393 0.0485 0.0216 0.025 0.0125 0.0132 0.124 0.0272 0.0128 0.0133+/-0.137+/-0.104+/-0.205+/-0.0753+/-0.023+/-0.0254+/-0.0158+/-0.0447+/-0.0481+/-0.0517+/-0.0536+/-0.0652+/-0.0153+/-0.0147+/-0.766+/-0.0753+/-0.0139+/-0.0386 0.108 0.175 0.219 0.0571 0.0355 0.0303 0.0312 0.0734 0.0849 0.100 0.0449 0.0524 0.0266 0.0277 0.271 0.0571 0.0267 0.0279 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 10/02/06 1343 574336 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB 1 09/21/06 1749 571423 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< Result is less than value reported 86 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-022F Project: YANK01204 Sample ID: 172275024 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.87 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-023F 172275025 TS 18-SEP-06 21-SEP-06 Client 14%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis 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 0.672 U -0.00365 0.548 0.488 Ul 0.00 0.0256 U -0.00147 U -0.0189 U -0.0143 U 0.0701 0.699 0.564 U 0.0035 U 0.008 13.1 0.488 U -0.0015 0.214+/-0.128+/-0.0563+/-0.201+/-0.0713+/-0.0277+/-0.0242+/-0.0139+/-0.0344+/-0.0401+/-0.0625+/-0.0454+/-0.0661+/-0.0129+/-0.0121+/-0.645+/-0.0713+/-0.0115+/-0.0277 0.0409 0.0487 0.0816 0.0212 0.0158 0.011 0.0115 0.0304 0.0326 0.0379 0.0228 0.0215 0.0116 0.0113 0.074 0.0212 0.0102 0.0111+/-0.128+/-0.0563+/-0.201+/-0.0713+/-0.0277+/-0.0242+/-0.0139+/-0.0344+/-0.0401+/-0.0625+/-0.0454+/-0.0661+/-0.0129+/-0.0121+/-0.645+/-0.0713+/-0.0115+/-0.0277 0.0868 0.100 0.173 0.0446 0.0331 0.0233 0.0249 0.0634 0.0702 0.078 0.0468 0.0448 0.0245 0.0236 0.166 0.0446 0.0213 0.0233 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 MJHI 10/02/06 1343 574336 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1749 571423 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< Result is less than value reported 88 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-023F Project: YANK01204 Sample ID: 172275025 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.89 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-024F 172275026 TS 18-SEP-06 21 -SEP-06 Client 16.2%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.755 +/-0.141 Americium-241 U -0.00337 +/-0.113 Bismuth-212 0.520 +/-0.195 Bismuth-214 0.498 +/-0.074 Cesium-134 U 0.0263 +/-0.0258 Cesium-137 U 0.0118 +/-0.0306 Cobalt-60 U 0.00876 +/-0.0288 Europium-152 U -0.0197 +/-0.0448 Europium-154 U -0.035 +/-0.051 Europium-155 U 0.0896 +/-0.0847 Lead-212 0.679 +/-0.0775 Lead-214 0.518 +/-0.0749 Manganese-54 U 0.0111 +/-0.0156 Niobium-94 U -0.00861 +/-0.015 Potassium-40 12.1 +/-1.08 Radium-226 0.498 +/-0.074 Silver-108m U -0.013 +/-0.0145 Thallium-208 0.282 +/-0.0417 0.0509 0.0931 0.118 0.0235 0.0187 0.0149 0.0171 0.0388 0.0415 0.0448 0.025 0.0278 0.0152 0.0127 0.158 0.0235 0.0119 0.0155+/-0.141+/-0.113+/-0.195+/-0.074+/-0.0258+/-0.0306+/-0.0288+/-0.0448+/-0.051+/-0.0847+/-0.0775+/-0.0749+/-0.0156+/-0.015+/-1.08+/-0.074+/-0.0145+/-0.0417 0.108 0.191 0.248 0.0497 0.0393 0.0314 0.0368 0.0806 0.0899 0.092 0.0514 0.0578 0.0321 0.0268 0.342 0.0497 0.025 0.0325 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 10/02/06 1502 574336 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1749 571423 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< Result is less than value reported 90 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-024F Project: YANK01204 Sample ID: 172275026 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.91 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-024FS 172275027 TS 18-SEP-06 21-SEP-06 Client 16.9%Project: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Ganmna,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 0.888 U -0.00511 0.445 0.652 U 0.0396 U 0.00396 U 0.0056 U -0.00788 U -0.0118 U 0.0372 0.809 0.636 U 0.00309 U 0.0104 13.6 0.652 U -0.00209 0.287+/-0.160+/-0.0266+/-0.344+/-0.0902+/-0.0287+/-0.0217+/-0.0266+/-0.0485+/-0.0725+/-0.0537+/-0.0568+/-0.0814+/-0.0214+/-0.0189+/-0.935+/-0.0902+/-0.016+/-0.048 0.0592 0.0232 0.127 0.0265 0.0245 0.0188 0.0228 0.0406 0.0599 0.0381 0.0238 0.0266 0.0181 0.0168 0.154 0.0265 0.0142 0.0166+/-0.160+/-0.0266+/-0.344+/-0.0902+/-0.0287+/-0.0217+/-0.0266+/-0.0485+/-0.0725+/-0.0537+/-0.0568+/-0.0814+/-0.0214+/-0.0189+/-0.935+/-0.0902+/-0.016+/-0.048 0.128 0.0477 0.274 0.057 0.0519 0.040 0.0494 0.0855 0.130 0.0788 0.0495 0.0563 0.0388 0.0357 0.347 0.057 0.030 0.0354 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 MJHI 10/02/06 1502 574336 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 09/21/06 1749 571423 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< Result is less than value reported 92 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-024FS Project: YANK01204 Sample ID: 172275027 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.93 GENERAL ENGINEERING 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: October 5, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9807-0000-025F 172275028 TS 18-SEP-06 21-SEP-06 Client 17%Proiect: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis 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 0.575 U-0.000377 0.487 0.606 U 0.027 3.50 0.089 U -0.0197 U -0.0211 U 0.0382 0.583 0.695 U 0.0169 U -0.00138 9.02 0.606 U -0.0159 0.186+/-0.137+/-0.0553+/-0.229+/-0.0922+/-0.0188+/-0.317+/-0.0294+/-0.049+/-0.0462+/-0.0686+/-0.066+/-0.107+/-0.0161+/-0.0123+/-0.922+/-0.0922+/-0.0205+/-0.0436 0.0443 0.0502 0.0981 0.0315 0.018 0.0156 0.0116 0.042 0.038 0.0412 0.0234 0.0316 0.015 0.0107 0.121 0.0315 0.0168 0.0154+/-0.137+/-0.0553+/-0.229+4-0.0922+/-0.0188+/-0.317+/-0.0294+/-0.049+/-0.0462+/-0.0686+/-0.066+/-0.107+/-0.0161+/-0.0123+/-0.922+/-0.0922+/-0.0205+/-0.0436 0.0963 0.104 0.211 0.0663 0.0382 0.0332 0.0262 0.0877 0.0839 0.0852 0.0484 0.0658 0.0321 0.0231 0.271 0.0663 0.035 0.0325 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 MJHI 10/02/06 1502 574336 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/21/06 1749 571423 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< Result is less than value reported 94 GENERAL ENGINEERING 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: October 5, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-025F Project: YANK01204 Sample ID: 172275028 Client ID: YANKOOl Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.95 QUALITY CONTROL DATA 96 GENERAL ENGINEERING 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 Revort Date: October 5, 2006 Page 1 of 12 East Hampton, Connecticut Contact: Mr. Jack McCarthy Workorder:

172275 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Alpha Spec Batch 572120 QC1201191304 Americium-241 Curium-242 Curium-243/244 QC1201191306 Americium-241 Curium-242 Curium-243/244 QC1201191303 Americium-241 172114001 DUP U 0.0864 Uncert: +/-0.105 TPU: +/-0.106 U 0.00 Uncert: +/-0.0553 TPU: +/-0.0553 U 0.0664 Uncert: +/-0.0911 TPU: +/-0.0915 LCS MB 11.4 Uncert: TPU: Uncert: TPU: 13.7 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: U 0.0286+/-0.0554+/-0.0555 U -0.0072+/-0.0141+/-0.0141 U -0.00672+/-0.0132+/-0.0132 12.6+/-1.20+/- 1.96 U 0.0299+/-0.0586+/-0.0588 14.4+/-1.28+/-2.18 U 0.00455+/-0.0226+/-0.0227 U 0.00+/-0.0581+/-0.0581 U -0.0704+/-0.0436+/-0.0445 pCi/g 101 pCi/g 200 pCi/g 245 pCi/g Curium-242 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g (0%- 100%) TCI 09/28/06 11:56 (0%- 100%)(0% -100%)111 (75%-125%)

105 (75%-125%)

Curium-243/244 QC1201191305 172114001 MS Americium-241 Curium-242 Curium-243/244 12.0 U 0.0864 Uncert: +/-0.105 TPU: +/-0.106 U 0.00 Uncert: +/-0.0553 TPU: +/-0.0553 14.5 U 0.0664 Uncert: +/-0.0911 TPU: +/-0.0915 U 12.9+/-1.10+/-1.85-0.0126+/-0.0175+/-0.0175 14.4+/-1.16+/-2.03 108 (75%-125%)

99 (75%-125%)

Batch 572121 QC1201191308 172114001 DUP Plutonium-238 U 0.102 U 0.0358 pCi/g 96 (0% -100%) TC1 09/28/06 11:56 97 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172275 Page 2 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Alpha Spec Batch 572121 Plutonium-239/

2 4 0 QC1201191310 LCS Plutonium-238 Plutonium-239/

2 4 0 QCl1201191307 MB Plutonium-238 Uncert: +/-0.0996 TPU: +/-0.100 U 0.062 Uncert: +/-0.077 TPU: +/-0.0773 Uncert: TPU: 10.5 Uncert: TPU:+/-0.0808+/-0.0809 U -0.0313+/-0.0909+/-0.091 U 0.0404+/-0.0758+/-0.0759 11.2+/-1.07+/-1.73 U 0.00363+/-0.114+/-0. 114 U 0.0618+/-0.107+/-0.107 pCi/g 608 (0% -100%)(75%-125%)

Plutonium-239/

2 4 0 QC1201191309 172114001 MS Plutonium-238 Plutonium-239/240 Uncert: TPU: Uncert: TPU: pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g 107 (75%-125%)

09/28/06 11:56 U 0.102 Uncert: +/-0.0996 TPU: +/-0.100 11.1 U 0.062 Uncert: +/-0.077 TPU: +/-0.0773 U 6.10 Uncert: +/-8.99 TPU: +/-9.01 U 0.0976+/-0.102+/-0.103 11.9+/-1.09+/-1.79 (75%-125%)

09/28/06 11:56 107 (75%-125%)

Batch 572122 QC1201191312 172114001 DUP Plutonium-241 QC1201191314 LCS Plutonium-241 QC1201191311 MB Plutonium-241 QC1201191313 172114001 MS Plutonium-241 U 4.20+/-8.54+/-8.55 pCi/g 0 (0%- 100%) TC1 132 Uncert: TPU: Uncert: TPU: 144 U Uncert: TPU: 112+/-12.9+/-17.0 U 2.21+/-8.86+/-8.86 pCi/g pCi/g 85 (75%-125%)

09/29/06 23:34 09/30/06 00:06 09/29/06 23:18 09/29/06 23:50 6.10+/-8.99+/-9.01 141+/-14.2+/-19.8 98 (75%-125%)

Rad Gamma Spec Batch 574335 QC1201196537 172275001 DUP Actinium-228 0.917+/-0.197 Uncert: 0.812+/-0.158+/-0.158 pCi/g 12 (0%- 100%) MJH1 10/03/06 15:37 98 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172275 Page 3 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 574335 Americium-241 Bismuth-212 Bismuth-214 Cesium- 134 Cesium- 137 Cobalt-60 Europium-152 Europium-154 Europium-155 TPU: +/-0.197 U 0.0336 U -0.0128 pCi/g 445 Uncert: +/-0.0304

+/-0.111 TPU: +/-0.0304

+/-0.111 0.332 0.683 pCi/g 69 Uncert: +/-0.297 +/-0.354 TPU: +/-0.297 +/-0.354 0.594 0.535 pCi/g 10 Uncert: +/-0.0918

+/-0.115 TPU: +/-0.0918

+/-0.115 U 0.0178 U1 0.00 pCi/g 121 Uncert: +/-0.0337

+/-0.0427 TPU: +/-0.0337

+/-0.0427 U -0.00791 U 0.00068 pCi/g 238 Uncert: +/-0.0231

+/-0.026 TPU: +/-0.0231

+/-0.026 U -0.032 U 0.0131 pCi/g 478 Uncert: +/-0.0272

+/-0.0256 TPU: +/-0.0272

+/-0.0256 U 0.00865 U -0.0158 pCi/g 685 Uncert: +/-0.0526

+/-0.0636 TPU: +/-0.0526

+/-0.0636 U -0.00226 U -0.00675 pCi/g 100 Uncert: +/-0.0668

+/-0.0738 TPU: +/-0.0668

+/-0.0738 U 0.0769 U 0.0493 pCi/g 44 Uncert: +/-0.0755

+/-0.0876 TPU: +/-0.0755

+/-0.0876 0.826 0.826 pCi/g 0 Uncert: +/-0.0631

+/-0.0726 TPU: +/-0.0631

+/-0.0726 0.596 0.633 pCi/g 6 Uncert: +/-0.0873

+/-0.106 TPU: +/-0.0873

+/-0.106 U -0.00108 U 0.00343 pCi/g 384 Uncert: +/-0.0247

+/-0.0231 TPU: +/-0.0247

+/-0.0231 U -0.00289 U 0.00591 pCi/g 584 Uncert: +/-0.021 +/-0.0228 TPU: +/-0.021 +/-0.0228 12.6 14.3 pCi/g 13 Uncert: +/-0.924 +/- 1.11 TPU: +/-0.924 +/- 1.11 0.594 0.535 pCi/g 10 Uncert: +/-0.0918

+/-0.115 TPU: +/-0.0918

+/-0.115 U 0.00205 U 0.0158 pCi/g 154 Uncert: +/-0.0182

+/-0.0215 (0%- 100%)(0%- 100%)(0% -10000)(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 99 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172275 Page 4 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 574335 Thallium-208 TPU: +/-0.0182 0.288 Uncert: +/-0.0486 TPU: +/-0.0486+/-0.0215 0.314+/-0.0534+/-0.0534 QC1201196538 Actinium-228 Americium-241 LCS Bismuth-212 Bismuth-214 Cesium- 134 Cesium- 137 Cobalt-60 Europium-152 Europium-154 Europium-155 Uncert: TPU: 23.4 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: 9.56 Uncert: TPU: 14.4 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: U -0.336+/-0.735+/-0.735 24.1+/-0.538+/-0.538 U -0.539+/-1.04+/-1.04 U 0.040+/-0.261+/-0.261 U 0.0448+/-0.159+/-0.159 10.6+/-0.503+/-0.503 15.0+/-0.670+/-0.670 U 0.0391+/-0.272+/-0.272 U -0.103+/-0.271+/-0.271 U -0.192+/-0.281+/-0.281 U 0.138+/-0.155+/-0.155 U -0.0121+/-0.202+/-0.202 U -0.0546+/-0.141+/-0.141 U -0.0363+/-0.124+/-0.124 U 0.981 pci/g pci/g pCi/g pCi/g pCilg pCi/g pCilg pCi/g pCi/g pci/g PCilg PCi/g 10/03/06 16:53 110 (75%-125%)

104 (75%-125%)

(0%- 100%)103 (75%-125%)

Lead-212 Lead-214 Manganese-54 Niobium-94 Potassium-40 100 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172275 Page 5 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 574335 Radium-226 Silver-108m Thallium-208 QC1201196536 Actinium-228 Americium-241 MB Bismuth-212 Bismuth-214 Cesium-134 Cesium- 137 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:+/-1.13+/-1.1i3 U 0.040+/-0.261+/-0.261 U -0.0285+/-0.111+/-0.111 U -0.016+/-0.114+/-0.114 U -0.00373+/-0.0552+/-0.0552 U 0.00356+/-0.0133+/-0.0133 U 0.0546+/-0.117+/-0.117 U 0.0344+/-0.0333+/-0.0333 U 0.00511+/-0.0185+/-0.0185 U -0.0066+/-0.0168+/-0.0168 U -0.000135+/-0.0192+/-0.0192 U 0.0299+/-0.0364+/-0.0364 U -0.00197+/-0.0618+/-0.0618 U -0.00897+/-0.0242+/-0.0242 U 0.0427+/-0.0416+/-0.0416 U 0.023+/-0.0276+/-0.0276 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 10/03/06 13:39 (75%-125%)

Cobalt-60 Europium-152 Europium-154 Europium-155 Lead-212 Lead-2i4 101 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172275 Page 6 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 574335 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 574336 QCI1201196540 Actinium7228 Americium:241 Bismuth-212 Bismuth-214 Cesium-134 Cesium- 137 Cobalt-60 Europium-152 Europium-154 Europium-155 172275028 DUP 0.575 Uncert: +/-0.137 TPU: +/-0.137 U -0.000377 Uncert: +/-0.0553 TPU: +/-0.0553 0.487 Uncert: +/-0.229 TPU: +/-0.229 0.606 Uncert: +/-0.0922 TPU: +/-0.0922 u 0.027 Uncert: +/-0.0188 TPU: +/-0.0188 3.50 Uncert: +/-0.317 TPU: +/-0.317 0.089 Uncert: +/-0.0294 TPU: +/-0.0294 u -0.0197 Uncert: +/-0.049 TPU: +/-0.049 u -0.0211 Uncert: +/-0.0462 TPU: +/-0.0462 u 0.0382 U 0.00276+/-0.0147+/-0.0147 U 0.0082+/-0.0143+/-0.0143 U 0.223+/-0.193+/-0.193 U 0.0344+/-0.0333+/-0.0333 U -0.000323+/-0.0132+/-0.0132 U 0.00536+/-0.0248+/-0.0248 0.630+/-0.144+/-0.144 U -0.000296+/-0.0229+/-0.0229 0.548+/-0.181+/-0.181 0.535+/-0.0773+/-0.0773 UI 0.00+/-0.0445+/-0.0445 U 0.0209+/-0.0312+/-0.0312 U 0.00347+/-0.0186+/-0.0186 U -0.00689+/-0.0417+/-0.0417 U 0.081+/-0.109+/-0.109 U 0.0429 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g 9 pCi/g 24 pCi/g 12 pCi/g 12 pCi/g 72 pCi/g 198*pCi/g 185 pCi/g 96 pCi/g 341 pCi/g 12 (0%- 100%) MJHI (0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)(0%-20%)(0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)10/03/06 06:14 102 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172275 Page 7 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 574336 Lead-212 Lead-214 Manganese-54 Niobium-94 Potassium-40 Radium-226 Silver- 108m Thallium-208 QC1201196541 Actinium-228 Americium-241 Bismuth-212 Bismuth-214 Cesium-134 Uncert: +/-0.0686 TPU: +/-0.0686 0.583 Uncert: +/-0.066 TPU: +/-0.066 0.695 Uncert: +/-0.107 TPU: +/-0.107 u 0.0169 Uncert: +/-0.0161 TPU: +/-0.0161 U -0.00138 Uncert: +/-0.0123 TPU: +/-0.0123 9.02 Uncert: +/-0.922 TPU: +/-0.922 0.606 Uncert: +/-0.0922 TPU: +/-0.0922 U -0.0159 Uncert: +/-0.0205 TPU: +/-0.0205 0.186 Uncert: +/-0.0436 TPU: +/-0.0436+/-0.047+/-0.047 0.738+/-0.0492+/-0.0492 0.589+/-0.0747+/-0.0747 U 0.0287+/-0.0174+/-0.0174 U 0.0073+/-0.0179+/-0.0179 12.2+/-0.876+/-0.876 0.535+/-0.0773+/-0.0773 U 0.0066+/-0.014+/-0.014 0.254+/-0.0405+/-0.0405 U -0.000391+/-0.575+/-0.575 25.5+/-2.52+/-2.52 U -0.528+/-0.989+/-0.989 U 0.0129+/-0.236+/-0.236 U -0.0169+/-0.145+/-0.145 10.1+/-0.768+/-0.768 14.6+/-1.01+/-1.01 pCi/g 23 *pCi/g 17 pCi/g 52 pCi/g 293 pCi/g 30*pCi/g 12 pCi/g 483 pCi/g 31 pCi/g (0% -20%)(0% -20%)(0%- 100%)(0%- 100%)(0%- 20%)(0% -100%)(0%- 100%)(0% -100%)LCS 10/03/06 07:26 Uncert: TPU: 23.4 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: 9.56 Uncert: TPU: 14.3 Uncert: TPU: pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g 109 (75%-125%)

Cesium-137 Cobalt-60 106 (75%-125%)

102 (75%-125%)

103 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172275 Page 8 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 574336 Europium-152 U -0.00861 pCi/g Uncert: +/-0.305 TPU: +/-0.305 Europium-154 U 0.382 pCi/g Uncert: +/-0.275 TPU: +/-0.275 Europium-155 U -0.0392 pCi/g Uncert: +/-0.332 TPU: +/-0.332 Lead-212 U -0.11 pCi/g Uncert: +/-0.163 TPU: +/-0.163 Lead-214 U 0.185 pCi/g Uncert: +/-0.234 TPU: +/-0.234 Manganese-54 U -0.00693 pCi/g Uncert: +/-0.128 TPU: +/-0.128 Niobium-94 U -0.0972 pCi/g Uncert: +/-0.118 TPU: +/-0.118 Potassium-40 U 0.676 pCi/g Uncert: +/-1.06 TPU: +/-1.06 Radium-226 U 0.0129 pCi/g (75%-125%)

Uncert: +/-0.236 TPU: +/-0.236 Silver-108m U -0.0142 pCi/g Uncert: +/-0.119 TPU: +/-0.119 Thallium-208 U 0.100 pCi/g Uncert: +/-0.123 TPU: +/-0.123 QC1201196539 MB Actinium-228 U 0.0435 pCi/g 10/03/06 06:13 Uncert: +/-0.091 TPU: +/-0.091 Americium-241 U -0.0204 pCi/g Uncert: +/-0.055 TPU: +/-0.055 Bismuth-212 U -0.00499 pCi/g Uncert: +/-0.109 TPU: +/-0.109 Bismuth-214 U 0.0577 pCi/g Uncert: +/-0.031 TPU: +/-0.031 Cesium- 134 U 0.00937 pCi/g Uncert: +/-0.0158 104 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172275 Page 9 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 574336 TPU: +/-0.0158 Cesium- 137 U -0.00291 pCi/g Uncert: +/-0.0137 TPU: +/-0.0137 Cobalt-60 U 0.000491 pCi/g Uncert: +/-0.0155 TPU: +/-0.0155 Europium-152 U -0.00472 pCi/g Uncert: +/-0.0376 TPU: +/-0.0376 Europium-154 U 0.00671 pCi/g Uncert: +/-0.0299 TPU: +/-0.0299 Europium-155 U 0.0139 pCi/g Uncert: +/-0.0336 TPU: +/-0.0336 Lead-212 U 0.0167 pCi/g Uncert: +/-0.0287 TPU: +/-0.0287 Lead-214 U 0.0536 pCi/g Uncert: +/-0.0433 TPU: +/-0.0433 Manganese-54 U -0.00217 pCi/g Uncert: +/-0.0116 TPU: +/-0.0116 Niobium-94 U 0.0106 pCi/g Uncert: +/-0.0136 TPU: +/-0.0136 Potassium-40 U 0.0767 pCi/g Uncert: +/-0.436 TPU: +/-0.436 Radium-226 U 0.0577 pCi/g Uncert: +/-0.031 TPU: +/-0.031 Silver-108m U 0.0117 pCi/g Uncert: +/-0.0122 TPU: +/-0.0122 Thallium-208 U 0.0111 pCi/g Uncert: +/-0.0142 TPU: +/-0.0142 Rad Gas Flow Batch 572301 QC1201191724 172275003 DUP Strontium-90 U -0.00839 U 0.00318 pCi/g 0 (0%- 100%) KSD1 09/28/06 07:35 Uncert: +/-0.0152

+/-0.0168 TPU: +/-0.0152

+/-0.0168 QC1201191726 LCS Strontium-90 1.56 1.44 pCi/g 92 (75%-125%)

09/28/06 07:35 105 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172275 Page 10 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time e Rad Gas Flow Batch 572301 QC1201191723 MB Strontium-90 QC1201191725 172275003 MS Strontium-90 Rad Liquid Scintillation Batch 571874 QC1201190758 172275008 DUP Iron-55 QC1201190760 LCS Iron-55 QC1201190757 MB Iron-55 QC1201190759 172275008 MS Iron-55 Uncert: TPU: Uncert: TPU:+/-0.103+/-0.113 U -0.00844+/-0.0137+/-0.0137 pCi/g pCi/g 09/28/06 07:34 09/28/06 07:35 2.99 U Uncert: TPU:-0.00839+/-0.0152+/-0.0152 2.97+/-0.209+/-0.220 99 (75%-125%)

U 0.774 Uncert: +/-38.8 TPU: +/-38.8 U-16.1+/-34.9+/-34.9 549+/-53.2+/-65.2 pCi/g 0 (0% -100%) \IXPI 693 Uncert: TPU: Uncert: TPU: 712 U Uncert: TPU: U 0.248+/-31.9+/-31.9 pCi/g pCi/g pCilg 79 (75%-125%)

09/28/06 18:42 09/28/06 19:14 09/28/06 18:26 09/28/06 18:58 0.774+/-38.8+/-38.8 595+/-55.5+/-68.7 84 (75%-125%)

Batch 571876 QC1201190768 172275014 DUP Nickel-63 QC1201190770 LCS Nickel-63 QC1201190767 MB Nickel-63 QC1201190769 172275014 MS Nickel-63 U -3.05 Uncert: +/-9.26 TPU: +/-9.26 U -6.06+/-6.04+/-6.04 pCi/g 0 (0% -100%) VIXPI 573 Uncert: TPU: Uncert: TPU: 575 U Uncert: TPU: 461+/-14.5+/-21.3 U -1.34+/-6.42+/-6.42 pCi/g pCi/g pCi/g 80 (75%-125%)

09/29/06 21:48 09/29/06 23:21 09/29/06 21:01 09/29/06 22:34-3.05+/-9.26+/-9.26 546+/-16.4+/-24.7 95 (75%-125%)

Batch 571877 QC1201190772 172275003 DUP Technetium-99 U 0.165 U -0.0959 pCi/g 0 (0% -100%) KXRI 10/02/06 13:02 106 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172275 Page 11 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Liquid Scintillation Batch 571877 Uncert: +/-0.222 TPU: +/-0.222 QC1201190774 LCS Technetium-99

+/-0.189+/-0.189 12.6+/-0.360+/-0.480 QC1201190771 Technetium-99 MB 13.1 Uncert: TPU: Uncert: TPU: 12.4 U Uncert: TPU: U -0.0467+/-0.168+/-0.168 pCi/g pCi/g pCi/g 96 (75%-125%)

10/02/06 14:05 10/02/06 12:30 10/02/06 13:33 QC1201190773 172275003 MS Technetium-99 0.165+/-0.222+/-0.222 11.6+/-0.372+/-0.474 94 (75%-125%)

Batch 571880 QC1201190784 172275003 DUP Carbon- 14 QC1201190786 LCS Carbon- 14 U -0.0626 Uncert: +/-0.105 TPU: +/-0.105 6.47 Uncert: TPU: QC1201190783 MB Carbon-14 U -0.15+/-0.103+/-0.103 6.36+/-0.181+/-0.206 U -0.0559+/-0.0984+/-0.0984 6.60+/-0.190+/-0.216 pCi/g 0 pCi/g pCi/g pCi/g 98 (75%-125%)

09/26/06 02:26 09/25/06 22:48 09/26/06 01:13 (0%- 100%) kXD2 09/26/06 00:01 Uncert: TPU: QC1201190785 Carbon-14 172275003 MS Batch 571884 QC1201190794 172275003 DUP Tritium QC1201190796 LCS Tritium 6.82 U Uncert: TPU: Uncert: TPU: 52.4 Uncert: TPU: Uncert: TPU: 52.5 Uncert: TPU:-0.0626+/-0.105+1-0.105 32.4+/-8.92+/-8.93 97 (75%-125%)

43.4+/-9.76+/-9.79 47.9+/-8.75+/-8.79 pCi/g 29 (0% -100%) DFA1 QC1201190793 MB Tritium U -1.35+/-5.87+/-5.87 pCi/g pCi/g pCilg 91 (75%-125%)

09/27/06 19:30 09/27/06 20:03 09/27/06 19:14 09/27/06 19:47 QC1201190795 172275003 MS Tritium 32.4+/-8.92+/-8.93 88.6+/-10.7+/-10.8 107 (75%-125%)

107 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172275 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< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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.108 General Narrative 1 General Narrative for Connecticut Yankee Atomic Power Co.Work Order: 173769 SDG: MSR#06-1282 October 16, 2006 Laboratory Identification:

General Engineering Laboratories, LLC 2040 Savage Road Charleston, South Carolina 29407 (843) 556-8171 Summary Sample receipt The samples arrived at General Engineering Laboratories, LLC, Charleston, South Carolina on September 21, 2006 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 173769001 173769002 173769003 173769004 173769005 173769006 173769007 Sample Description 9807-0000-002F 9807-0000-003F 9807-0000-006F 9807-0000-007F 9807-0000-008F 9807-0000-013F 9807-0000-014F Items of Note Jack McCarthy requested H3 analysis of the samples listed above via email on 10/10/06.Case Narrative Sample analyses were conducted using methodology as outlined in General Engineering Laboratories (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 Seven soil samples were analyzed for Tritium.2 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 3 List of current GEL Certifications as of 16 October 2006 State Certification Alaska UST-062 Arizona AZ0668 Arkansas 88-0651 CLIA 42D0904046 California 01 151CA Colorado GenEngLabs Connecticut PH-0169 Dept. of Navy NFESC 413 EPA WG-15J Florida/NELAP E87156 Georgia E87156 (FLJNELAP)

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 TI04704235-06-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-00 I Major Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-568 362 Injun Hollow Road, East Haznpton, 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 CoSztaier Code Type Size-Analytical Lab (Name, City, State): Code &Type General Engineering Laboratories 2040 Savage Road Charleston, SC 29407 ATT: Cheryl Jones (843-556-8171)

Priority:El30 D. 0 14 D. [1I7D <D.Other: &n_ ___c Sample Desigation Date Time .Comment, Preservation Lab Sample ID 9807-0000-00D F TS C BP 9807-000000 r h C BP X 9807-0000-003 F !//, /' TS C BP .-_, 9807-0000-0b4,C i 57,Z.3 TS C BP P -9807-0000-0 q TS C BP 9807-0000-0 o( F It J05" TS C BP 9807-0000-0oiq r- j TS C BP -V 9807-00 -00"N? z 5\ .TS C BP 9807-0000-0c.q TS C BP X I 140" TS C BP --9807-0000-0

ý ( -_ag ldOw 14 -TS C BI _ B NOTES: PO#: 002332 MSR #: Z. LTP QA E] Radwaste QA [I Non QA Samples Shipped Via: Internal Container 0 Fed Ex Temp.: /I Deg. C El ups 1 Hand Custody Seale ?1) Renquisd Date/Time 2 celift y Date- ime Custody Seal Intact?A 6j/ 1r )t" gpi/(p 07dz -]Other 3) Relinquished by Date/rime 4 Received B7 DateiTime

_Yo] NO Bill of Lading #5) Relinquished By Date/Time

6) Received By Date/Time Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-001 Major Chain of Custody Form No. 2006569 Connecticut Yankee Atomic Power Company 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:

El 30 D. Z 14 D. [] 7 D.Other: _____Sample Designation Date Time -W -.- Comment, Preservation Lab Sample ID 9807-0000-0 1 f: !L-%IW2 TS C BP V -091 all#9807-0000-0

.5: q_-1 0 ,, TS C BP V _ _ _ OD_ _9807-0000-0 q-14t.t, r TS C BP 9807-0000-0 t4 -TS C BP -C 9807-0000-0

%6-F Qq y_, TS C BP -9807-0000-0 1 Tt C B 46 d 0 TS C BP ,X 9807-0000-0 V_ -O04k6 TS C BP __ _9807-0000-0 -M TS C BP 9807-0000-0 I -'s to L T5 I C BP ,m .-.....9807-0000-0

+ 6 TS C BP ---9807-0000-0-dcV

-J-60)eh TS C BP -9 NOTES: PO #: 002332 MSR #: UC 12. [] LTP QA E] Radwaste QA El Non QA Samples Shipped Via: Internal Container 0 Fed Ex Temp.: _ Deg. C El uPs El Hand Custody Sealed 1) Relinquished By Date/Time 2)Ne e Dat//0 m 0l Other Custody Se /Intact?3) Relinquished By Date/Time

4) 6ceived)y Date/Time Y C.. N 0 Bill of Lading #5) Relinquished By Date/Time

6) Received By DatetTime Health Physics Procedure GPP-CGGR-R5104-003 -Attachment B-CY-001 Major Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-570 362 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)

Pririty:[30D.

14D.E] 7 D.Other: __-_Sample Designation Date Time Comment, Preservation Lab Sample ID 9807-0000-01Vi

.6 JI AZ TS C BP

&1'4 I&Zf TS C ReP O_9807-0000-0 z q" q.&A JR)5. TS C BP -.-98070000-0 7L IF Ct- j3( J11%"6 TS C BP 3 --....9807-0000-0 -9 1 .Sn TS C BP .-.q-cF-- q-g7 L5g 15 --S 0- (5p_ I ...NOTES: PO 4: 002332 MSR #: 0 iILft [ LTP QA E] Radwaste QA El Non QA Samples Shipped Via: Internal Container[ Fed Ex Temp.: -Deg. C ULIPS I] Hand Custody Sealed" 1) Relinquished By Datefrime

2) iv y ate/Time Custody SealIntact?

3) Relnquised By1D'.C ~DC LS Other 3) Relinquished By Date/Time

4) Receivedby Q Date/Time YO_ NO_ _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-OOI Figure 1. Sample Check-in List.Dateffimo Received.

..Work Order Number- I % -" Shipping C* nainer, Chain of Custody # "5(. -" q 1. Custody Seals onishipping container intact?. *Yes [ ] No [J ] ,(2. Custody Seals dated and signed? Yes( i No -Al /.3 Chain-of-Custoy record p. nt?4. Cooler temperature

5. Vermiculite/packing materials is: Wet f Dry [', /t) '6. Number of samples in sipping co.tainar:

2..Q -------7. Sample holding-times exceeded?

Yes [] Nof 8. Samples have.," t_ hazard labels custodyseals

..-appropnate sample labels 9. Samples are-good condition -leaking-broken , " " have air bubbles 10. Were any anomalies identified in sample receipt7 Yes (I Nol I.. Description ofanomalies (include sample numbers): Sample CustodrWLaboratory:

4 .Telephoned to:... .------ -- ---9 Prep for additional analysis (and reanalysis)

Subject:

Prep for additional analysis (and reanalysis)

From: "John McCarthy" <McCarthy@CYAPCO.com>

Date: Tue, 10 Oct 2006 13:47:15 -0400 To: "Cheryl Jones" <cj@gel.com>

CC: "Clyde Newson" <Newson@CYAPCO.com>

Cheryl, Would prep and analyses the following samples under MSR 0601282 for H-3: 9807-0000-002F 9807-0000-003F (REANALYSIS) 9807-0000-006F 9807-0000-007F 9807-0000-008F (REANALYSIS) 9807-0000-013F (REANALYSIS) 9807-0000-014F TAT IS REQUESTED AT 7 DAYS. RDL IS REQUESTED AT 3 PCI/G (3.OOE+00 PCI/G)Thank you Jack 10 I oflI 10/17/2006 2:50 PM 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.GENERAL ENGINEERING LABORATORIES, LLC a Member of THE GEL GROUP, INC.P.O. BOX 30712 Charleston, SC 29417

• 2040 Savage Road (29407)Phone (843) 556-8171 Fa"l3) 766-1178 www.gel.com RADIOLOGICAL ANALYSIS 13 Radiochemistry Case Narrative Connecticut Yankee Atomic Power Co. (YANK)Work Order 173769 Method/Analysis Information Product: LSC, Tritium Dist, Solid -3 pCi/g Analytical Method: Analytical Batch Number: Sample ID 173769001 173769002 173769003 173769004 173769005 173769006 173769007 1201205181 1201205182 1201205183 1201205184 EPA 906.0 Modified 578364 Client ID 9807-0000-002F 9807-0000-003F 9807-0000-006F 9807-0000-007F 9807-0000-008F 9807-0000-013F 9807-0000-014F Method Blank (MB)173770001(9106-0001-112F)

Sample Duplicate (DUP)173770001(9106-0001-112F)

Matrix Spike (MS)Laboratory Control Sample (LCS)SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by General Engineering 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.

14 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: 173770001 (9106-0001-112F).

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 The container ids were verified for samples 173769002 (9807-0000-003F) and 173769005 (9807-0000-008F).

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

Review Validation:

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

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

15 4 i-A~ (C DuoQ-)0/1 Eat;Reviewer/Date:

16 SAMPLE DATA

SUMMARY

17 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Report for YANKOOI Connecticut Yankee Atomic Power Co.Client SDG: MSR#06-1282 GEL Work Order: 173769 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 an "as received" basis.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 General Engineering Laboratories, LLC standard operating procedures.

Please direct any questions to your Project Manager, Cheryl Jones.Reviewed by 18 GENERAL ENGINEERING 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: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-002F Project: YANK01204 Sample ID: 173769001 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 13-SEP-06 Receive Date: 21-SEP-06 Collector:

Client Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid -3 pCi/g Tritium U 0.231 +/-1.43 1.19 +/-1.43 2.55 pCi/g DFAl 10/14/06 2310 578364 1 The following Analytical Methods were performed Method Description I EPA 906.0 Modified Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 an "as received" basis.19 GENERAL ENGINEERING 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: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-003F Proiect: YANK0 1204 Sample ID: 173769002 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 13-SEP-06 Receive Date: 2 I -SEP-06 Collector:

Client Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid -3 pCi/g Tritium U 0.154 +/-1.28 1.07 +/-1.28 2.29 pCi/g DFAI 10/14/06 2326 578364 1 The following Analytical Methods were performed Method Description I EPA 906.0 Modified Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 an "as received" basis.20 GENERAL ENGINEERING 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: October 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

9807-0000-006F 173769003 TS 14-SEP-06 21 -SEP-06 Client Project: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid -3 pCi/g Tritium U 0.0691 +/-1.64 1.37 +/-1.64 2.94 pCi/g DFAI 10/14/06 2343 578364 1 The following Analytical Methods were performed Method Description I EPA 906.0 Modified Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD.UT Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound 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 an "as received" basis.21 GENERAL ENGINEERING 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: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-007F Project: YANK01204 Sample ID: 173769004 Client ID: YANKO01 Matrix: TS Vol. Recv.: Collect Date: 14-SEP-06 Receive Date: 21-SEP-06 Collector:

Client Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid -3 pCi/g Tritium U 0.00 +/-1.24 1.04 +/-1.24 2.23 pCi/g DFAI 10/14/06 2359 578364 1 The following Analytical Methods were performed Method Description I EPA 906.0 Modified Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 an "as received" basis.22 GENERAL ENGINEERING 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: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-008F Project: YANK01204 Sample ID: 173769005 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 14-SEP-06 Receive Date: 21-SEP-06 Collector:

Client Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid -3 pCi/g Tritium U 0.575 +/-1.33 1.08 +/-1.33 2.31 pCi/g DFA1 10/15/06 0015 578364 1 The following Analytical Methods were performed Method Description I EPA 906.0 Modified Notes: The Qualifiers in this report are defined as follows* A quality control analyte recovery is outside of specified acceptance criteria< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 an "as received" basis.23 GENERAL ENGINEERING 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: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-013F Project: YANK01204 Sample ID: 173769006 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 14-SEP-06 Receive Date: 21-SEP-06 Collector:

Client Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid -3 pCi/g Tritium U -0.875 +/-1.21 1.07 +/-1.21 2.30 pCi/g DFA1 10/15/06 0032 578364 1 The following Analytical Methods were performed Method Description I EPA 906.0 Modified Notes: The Qualifiers in this report are defined as follows:* A quality control analyte recovery is outside of specified acceptance criteria< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 an "as received" basis.24 GENERAL ENGINEERING 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: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9807-0000-014F Proiect: YANK01204 Sample ID: 173769007 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 18-SEP-06 Receive Date: 21-SEP-06 Collector:

Client Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid -3 pCi/g Tritium U -1.34 +/-1.28 1.16 +/-1.28 2.49 pCi/g DFA1 10/15/06 0048 578364 1 The following Analytical Methods were performed Method Description I EPA 906.0 Modified Notes: The Qualifiers in this report are defined as follows* A quality control analyte recovery is outside of specified acceptance criteria< Result is less than value reported> Result is greater than value reported A The TIC is a suspected aldol-condensation product B 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 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 an "as received" basis.25 I. I QUALITY CONTROL DATA 26 GENERAL ENGINEERING 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 Revort Date: October 18, 2006 Page I of 2 East Hampton, Connecticut Contact: Mr. Jack McCarthy Workorder:

173769 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Liquid Scintillation Batch 578364 QC1201205182 173770001 DUP Tritium QC1201205184 LCS Tritium QC1201205181 MB Tritium QC1201205183 173770001 MS Tritium U Uncert: TPU: 10.4 Uncert: TPU: Uncert: TPU: 57.8 U Uncert: TPU: 1.60+/-5.76+/-5.76 U -1.29+/-6.37+/-6.37 9.95+/-1.86+/-1.86 U -0.187+/-1.17+/-1.17 pCi/g 0 (0% -100%) DFA I pCi/g pCi/g pCi/g 96 (75%-125%)

84 (75%-125%)

10/15/06 02:10 10/15/06 02:42 10/15/06 01:53 10/15/06 02:26 1.60+/-5.76+/-5.76 48.5+/-9.94+/-9.97 Notes: The Qualifiers in this report are defined as follows: A B BD C D H J N/A R U UI X Y A h A quality control analyte recovery is outside of specified acceptance criteria Result is less than value reported Result is greater than value reported The TIC is a suspected aldol-condensation product 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 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 27 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

173769 Page 2 of 2 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time 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.28 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD ATTACHMENT 3 (DQA RESULTS)

SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD ATTACHMENT 3A (PRELIMINARY DATA REVIEW)

PRELIMINARY DATA REVIEW FORM Survey Unit: 9807-0000 Survey Unit Name: Subsurface Area Associated with the Southwest Site Storage area Classification

B Survey Media: Soil Type of Survey: Final Status Survey Type of Measurement:

Radionuclide Specific lumber of Measurements:

25 BASIC STATISTICAL QUANTITIES Cs-137 Target Level (pCi/g)

• 5.38E+00 Minimum Value: -2.76E-02 Maximum Value: 3.50E+00 Mean : 1.49E-01 Median : 8.18E-03 Standard Deviation

6.98E-01 Sample Identification 9807-0000-001F 9807-0000-002F 9807-0000-003F 9807-0000-004F 9807-0000-005F 9807-0000-006F 9807-0000-007F 9807-0000-008F 9807-0000-009F 9807-0000-01 OF 9807-0000-01 IF 9807-0000-012F 9807-0000-013F 9807-0000-014F 9807-0000-015F 9807-0000-016F 9807-0000-017F 9807-0000-018F 9807-0000-019F 9807-0000-020F Reported Results Cs-137 Concentration (pCi/g)-7.91 E-03-2.76E-02 4.02E-02-1.26E-03 1.87E-02-8.34E-03-1.54E-02-1.36E-02 3.30E-02 2.86E-02-2.32E-02 4.36E-02-2.5 1E-03 8.18E-03 1.29E-02 6.0IE-03 3.34E-02 2.39E-03-3.24E-04 3.53E-02 Fraction of Detect? Target Level-0.001-0.005 0.007 0.000 0.003-0.002-0.003-0.003 0.006 0.005-0.004 0.008 0.000 0.002 0.002 0.001 0.006 0.000 0.000 0.007 Submitted by/Date 1 of 1 PRELIMINARY DATA REVIEW FORM Sample Identification 9807-0000-021 F 9807-0000-022F 9807-0000-023F 9807-0000-024F 9807-0000-025F Reported Results Cs-137 Concentration (pCi/g)0.00E+00 2.88E-02 2.56E-02 1.18E-02 3.50E+00 Fraction of Detect? Target Level 0.000+ 0.005++0.005 0.002 0.651 Submitted by/Da2o 2 ofl1 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD ATTACHMENT 3B (GRAPHICAL REPRESENTATION OF DATA)

FREQUENCY PLOT FOR CESIUM-137 Survey Unit: 9807-0000 Subsurface Area Associated with the Survey Unit Name: Southwest Site Storage Area Mean: 1.49E-01 pCi/g Frequency Plot For Cs-137 25 20 S15 Zr 10 L-U-5 0-2.76E-02 8.47E-01 1.72E+00 2.60E+00 3.47E+00 4.35E+00 Upper End Value (pCi/g)Upper End Observation Observation Value Frequency Frequency-2.76E-02 1 4%8.47E-01 23 92%1.72E+00 0 0%2.60E+00 0 0%3.47E+00 0 0%4.35E+00 1 4%Total: 25 100%~Eck Submitted by/Da~e 77h>Y Piizi Job Rev-ie(ý yD te 1o 1 of 1 QUANTILE PLOT FOR CESIUM-137 Survey Unit: 9807-0000 Subsurface Area Associated with the Survey Unit Name: Southwest Site Storage Area Mean: 1.49E-01 pCi/g Quantile Plot For Cs-1 37 3.47E+00 2.97E+00 S2.47E+00

~ N C~ 1.97E+00 oU 9 70E-01N O 4.70E-01 --3.00E-02

"-W.0 10 20 30 40 50 60 70 80 90 100 Percentage Cs- 137 Rank Percentage

-2.76E-02 1 3%-2.32E-02 2 10%-1.54E-02 3 17%-1.36E-02 4 23%-8.34E-03 5 30%-7.91E-03 6 37%-2.51E-03 7 43%-1.26E-03 8 50%-3.24E-04 9 57%O.00E+00 10 63%2.39E-03 11 70%6.01E-03 12 77%8.18E-03 13 83%1.18E-02 14 90%1.29E-02 15 97%1.87E-02 16 97%2.56E-02 17 97%2.86E-02 18 97%2.88E-02 19 97%3.30E-02 20 97%3.34E-02 21 97%3.53E-02 22 97%4.02E-02 23 97%4.36E-02 24 97%3.50E+00 25 97%03 ' '1 ,//1/'a&Subm ritted by/Datj IIIZ)I l Revi6ýe J, ate SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD ATTACHMENT 3C (SIGN TEST)

Connecticut Yankee Decommissioning Project Health Physics Procedure GPP-GGGR-R5121-001 Attachment A, Rev CY-001 MAJOR Sign Test Calculation Sheet For A Single Radionuclide or Gross Activity Measurements Survey Area Number: 9807 Survey Unit Number: 0000 Survey Area Name: Subsurface Area associated with the Southwest Site Storage Area WPIR#: 2006-0038 Classification:

B Type I (ax error): 0.05 (N): 25 Radionuclide:

Cs-137 DCGL: 5.38 Results (pCi/g) DCGL -Results Sign-7.91E-03 5.39E+00 I-2.76E-02 5.41 E+00 I 4.02E-02 5.34E+00 I-1.26E-03 5.38E+00 1 1.87E-02 5.36E+00 I-8.34E-03 5.39E+00 1-1.54E-02 5.40E+00 I-1.36E-02 5.39E+00 I 3.30E-02 5.35E+00 I 2.86E-02 5.35E+00 I-2.32E-02 5.40E+00 1 4.36E-02 5.34E+00 1-2.51E-03 5.38E+00 1 8.18E-03 5.37E+00 I 1.29E-02 5.37E+00 I 6.01E-03 5.37E+00 I 3.34E-02 5.35E+00 I 2.39E-03 5.38E+00 I-3.24E-04 5.38E+00 I 3.53E-02 5.34E+00 I Page 1 of 1 Connecticut Yankee Decommissioning Project Health Physics Procedure GPP-GGGR-R5121-001 Attachment A, Rev CY-001 MAJOR Survey Area Number: 9807 Survey Unit Number: 0000W Survey Area Name: Subsurface Area associated with the Southwest Site Storage Area WPIR#: 2006-0038 Classification:

B Type I (ca error): 0.05 (N): 25 Radionuclide:

Cs-137 DCGL: 5.38 Results (pCi/g) DCGL -Results Sign 0.OOE+00 5.38E+00 I 2.88E-02 5.35E+00 I 2.56E-02 5.35E+00 I 1.18E-02 5.37E+00 1 3.50E+00 1.88E+00 I Number of positive differences (S+): 25 Critical Value: 1_7 Performed by: Survey Unit Meets Acceptance Criterion Date: A!/'c./e) 6 Date: Independent Review by Page 1 of I SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD ATTACHMENT 3D (QC SPLIT RESULTS)

Health Physics Procedure 24265-000-GPP-GGGR-R5124-000-Rev.CY-000 Attachment A HelhPyisPoeue225O0GPGG-5I2-0-e.Y00Atcmn[

Split Sample Assessment Form Survey Area#: 9807 Survey Unit #: 0000 Survey Unit name: Subsurface Area Associated with the Southwest Site Storage Area Sample Plan or WPIR#: 2005-0038 SML#: 9807-0000-012 Sample

Description:

Comparison of split samples collected from sample measurement location #12 and analyzed using gamma spectroscopy by off-site Vendor Laboratory.

The standard sample was 9807-0000-0012F, the comparison sample was 9807-0000-012FS.

STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (Y/N)K-40 13.9 5.65E-1 25 0.75- 1.33 13.7 5.70E-1 0.99 Y 4 4 .4- 4 4 4 4 + 4 4 4 Comments/Corrective Actions: Not enough Cs-137 to yield an acceptable Resolution Table is provided to show acceptance criteria used to assess split samples.Resolution 4-7 8-15 16 -50 51 -200>200 Agreement Range 0.5 -2.0 0.6 -1.66 0,75 -1.33 0.80 -1.25 0.85- 1.18< I Page 1 of 1 Health Physics Procedure 24265-000-GPP-GGGR-R5124-000-Rev.CY-000 Attachment A HelhPyisPoeueT2500GPGGRR 2-0-e.YO0Atcmn Split Sample Assessment Form Survey Area#: 9807 Survey Unit #: 0000 Survey Unit name: Subsurface Area Associated with the Southwest Site Storage Area Sample Plan or WPIR#: 2005-0038 SML#: 9807-0000-018 Sample

Description:

Comparison of split samples collected from sample measurement location # 18 and analyzed using gamma spectroscopy by off-site Vendor Laboratory.

The standard sample was 9807-0000-018F, the comparison sample was 9807-0000-018FS.

STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (YIN)K-40 13.2 5.55E-1 24 0.75- 1.33 13.3 6.05E-1 1.00 Y Comments/Corrective Actions: Not enough Cs- 137 to Table is provided to show acceptance criteria yield an acceptable Resolution used to assess split samples.Resolution Agreement Range 4-7 0.5 -2.0 8-15 0.6-1.66 16-50 0.75-1.33 51-200 0.80-1.25>200 0.85 -1.18 Performed By: Date k ed By: Date: 0ie& #&! ' _- 'I , 11440e, 2I, 7-(-1-j Page 1 of 1 Health Physics Procedure 24265-000-GPP-GGGR-R5]24-000-Rev.CY-000 Attachment A Health Physics Procedure 24265-000-GPP-GGGR-R5 I 24-000-Rev.CY-O00 Attachment A Split Sample Assessment Form Survey Area#: 9807 Survey Unit #: 0000 Survey Unit name: Subsurface Area Associated with the Southwest Site Storage Area Sample Plan or WPIR#: 2005-0038 SML#: 9807-0000-024 Sample

Description:

Comparison of split samples collected from sample measurement location #24 and analyzed using gamma spectroscopy by off-site Vendor Laboratory.

The standard sample was 9807-0000-024F, the comparison sample was 9807-0000-024FS.

STANDARD COMPARI SON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (YIN)K-40 12.1 5.40E-1 22 0.75- 1.33 13.6 4.68E- 1 1.12 Y Comments/Corrective Actions: Not enough Cs-137 to yield an acceptable Resolution Table is provided to show acceptance criteria used to assess split samples.Resolution 4-7 8-15 16 -50 51 -200>200 Agreement Range 0.5 -2.0 0.6 -1.66 0.75 -1.33 0.80-1.25 0.85-1.18/Page 1 of 1 SUBSURFACE AREA ASSOCIATED WITH THE SOUTHWEST SITE STORAGE AREA SURVEY UNIT 9807-0000 RELEASE RECORD ATTACHMENT 3E (COMPASS DQA WITH POWER CURVE)

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:==

9807-0000 FSS McCarthy 6 -Q ,/V f-Subsurface Area Associated with the Southwest Site 1 25 0 Sign Test Result: Not Performed 0 EMC Result: Not Performed Reject Null Hypothesis (Survey Unit PASSES)Retrospective Power Curve rd Z-1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0____ ___ _ __ __ _ _ _I -k_____ ____ -0 1 2 3 4 5 Sofl Concentration gL Ci/g), inclulixg backgroud-, -Prospective Power 1-beta ... Actual Power-LBGR --Estimated Power DCGL ---- Retrospective Power 6 COMPASS v1.0.0 11120/2006 Page I DQA Surface Soil Report Survey Unit Data NOTE: Type = "S" indicates survey unit sample.Type = R" indicates reference area sample.Sample Number 9807-0000-001 F 9807-0000-002F 9807-0000-003F 9807-0000-004F 9807-0000-005F 9807-0000-006F 9807-0000-007F 9807-0000-008F 9807-0000-009F 9807-0000-01OF 9807-0000-011 F 9807-0000-012F 9807-0000-013F 9807-0000-014F 9807-0000-015F 9807-0000-016F 9807-0000-017F 9807-0000-018F 9807-0000-019F 9807-0000-020F 9807-0000-021 F 9807-0000-022F 9807-0000-023F 9807-0000-024F 9807-0000-025F Type S S S S S S S S S S S S S S S S S S S S S S S S S Cs-1 37 (pCi/g)-0.01-0.03 0.04 0 0.02-0.01-0.02-0.01 0.03 0.03-0.02 0.04 0 0.01 0.01 0.01 0.03 0 0 0.04 0 0.03 0.03 0.01 3.5 Basic Statistical Quantities Summary Statistic Survey Unit Backaround DQO Results Sample Number Mean (pCi/g)Median (pCi/g)Std Dev (pCi/g)High Value (pCi/g)Low Value (pCi/g)25 0.15 0.01 0.70 3.50-0.03 N/A N/A N/A N/A N/A N/A N=15 0.01 N/A 0.00839 N/A N/A COMPASS v1.0.0 11/20/2006 Page 2