ML063540352

Final Status Survey Release Record Subsurface Area Associated with the Peninsula (Survey Unit 9805-0000).

ML063540352
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	11/28/2006
From:	Massengill B Connecticut Yankee Atomic Power Co
To:	NRC/FSME
References
Download: ML063540352 (134)

Text

CYAPCO FINAL STATUS SURVEY RELEASE RECORD SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

Prepared By: b ec- ZL- SS\ ý II FSS Engineer Reviewed B FSS Eng* eer Approved By: Qh 'A:r-,-Technical Support Manager Date: /1I-2 3-o(Date: /6(Date: Revision 0 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD TABLE OF CONTENTS 1. SURVEY UNIT DESCRIPTION

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

3 2. CLA SSIFICA TION BA SIS ....................................................................................

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

6 4. SU R V EY D E SIG N ...............................................................................................

9 5. SURVEY IMPLEMENTATION

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

12 6. SU RV EY RESU LTS ..........................................................................................

13 7. QU A LITY CON TR O L ........................................................................................

15 8. INVESTIGATIONS AND RESULTS .................................................................

15 9. REMEDIATION AND RESULTS ......................................................................

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

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

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

16 13. C O N C L U SIO N ....................................................................................................

16 14. A TTA CH M EN T S ...............................................................................................

17 14.1 Attachment I -Figures (6 pages including cover)14.2 Attachment 2 -Laboratory Data (110 pages including cover)14.3 Attachment 3 -DQA Results (14 pages including covers)Total 134 Revision 0 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD 1. SURVEY UNIT DESCRIPTION Survey Unit 9805-0000 (Peninsula) is designated as a Final Status Survey (FSS)subsurface Class C area. The survey area is located south of the industrial area approximately seven hundred fifty feet (750 ft) from the site benchmark based on the Connecticut State Plan System North American Datum (NAD) 1927 (Northing 236594.381, Easting 668136.136).

The survey area has a total surface area of approximately one million four hundred and three thousand seven hundred and fifty square feet (1,403,750 ft') or one hundred thirty thousand three hundred and eighty square meters (130,380 inm) or thirty-two (32) acres. The land area does not include the twenty one thousand three hundred and forty-seven square feet (21,347 ft 2) associated with the land area of Survey Area 9807, a separate subsurface area, which is located within Survey Area 9805 (see Attachment 1).The surface land units that reside above this subsurface survey unit are relatively level open space of the peninsula.

The restoration of the peninsula for FSS has removed most of the interferences in the survey unit.The reference coordinates associated with this survey unit are E003 through E034 by S072 through S125 (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 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 9805-0000 consisted of: a) A review of the 10CFR50.75 (g) (1) database, b) A review of the "Initial Characterization Report" and the "Historic Site Assessment Supplement, " c) Historic and current survey records review, d) Visual inspections and a "walk-down." A review of the 1OCFR50.75(g)(1) database report and historical files shows a documented history of the use of this survey unit as a radioactive materials storage area. Examples of some of the major events are provided below: Revision 0 3 Revision 0 3 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD a) Plant Incident Report (PIR) 80-37 reported the discovery of two (2)discrete sources of elevated activity on the Upper Peninsula in March 1980, along with other areas around the site. According to Health Physics (HP) memo 80-213, which is an appendage of PIR 80-37, the ground level count rate over one (1) spot was fifteen thousand corrected counts above background (15,000 ccpm). After digging below about one and a half feet (1 2 ft) of dirt, a piece of concrete was found with a contact dose rate reading at 500 mR/hr and a dose rate of 20 mR/hr at one foot (1 ft). The activity was found above a piece of uncontaminated construction rubble. According to PIR 80-37, a possible mode of transfer of this contamination from the Radiologically Controlled Area (RCA)could have been from the use of contaminated tools or equipment during the storage of uncontaminated construction rubble; however, the time of deposit could not be determined.

Isotopic analysis of this discrete source identified Co-60 as the predominate isotope at an estimated 1.27 millicuries.

Isotopic analysis of the other discrete source indicated that the short-lived fission products, such as Ce-144 and Ru-106, dominated the isotopic profile. According to PIR 80-37, the source of this elevated activity, as with other similar discrete sources found on the site, was most likely radioactive particulate ejected from the Primary Vent Stack as a result of operational events in 1979. Both elevated areas were removed upon detection according to the historical records.b) In 1989, contaminated soil was found along the peninsula access road from both the upper and middle peninsula areas (Areas 9520 and 9530).The soil was subsequently removed, and was determined to have come from the area south of the 115 kV switchyard (refer to PIR 89-3 5).c) In March of 2006, Co-60 and Cs-137 were identified in subsurface soils in sufficient concentrations to warrant radiological remediation.

Radiological remediation was performed in July 2006. As a result, a Class B subsurface unit, Survey Unit 9807, was created in the Southeast Site Storage area and is contained within the boundaries of this survey area (9805).d) In 2006, utilities were being removed as part of the decommissioning effort on the Upper Peninsula which included portions of this subsurface survey area. Construction debris including Asbestos Containing Material (ACM) was identified and remediated.

In addition to the ACM, two (2) objects were also identified that had detectable radioactivity.

The first was a piece of angle iron located in the water utility trench in Survey Area 9530, and the second was a weathered drum containing turbine blades in Survey Area 9520.Revision 0 4 Revision 0 4 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD e) To further characterize the extent of buried metallic objects, and to identify if any additional drums were present, an Electromagnetic (EM)survey was performed.

The survey was conducted in three phases from February 2006 through March 2006 and identified over ninety (90)locations which were then further characterized by test pitting the areas.A total of ninety-four (94) test pits were completed to characterize subsurface materials.

A review of the "Initial and Supplemental Characterization Reports" as well as the previous "Classification Basis Summaries" was performed.

Survey Unit 9805-0000 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).

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".

Removal of material and restoration of the peninsula for FSS has been ongoing since 2000 starting with the radiological release of the South Access Point and several abandoned trailers.

The collapse of the Radioactive Material(s)

Area (RMA) boundary and the removal of subsurface commodities has produced a large data set that has helped characterize the radiological contaminants of concern and extent of contamination.

Although Co-60 has been identified in the past (e.g., the two discrete sources of elevated activity identified in March 1980), Cs-137 has been the only radionuclide that has been consistently reported in concentrations above detection levels and with the potential to exceed the screening criteria (refer to Section 3).A radiological assessment plan (SSWP-06-01-004) was developed and implemented in January 2006 to support commodity removal. Soil samples were collected over the next couple months, including July 2006, to establish the radiological condition of the subsurface area impacted by the commodity removal. A review of a representative subset of these sample data shows the only radionuclide of concern to be Cs-137, which was reported at fairly low concentrations, and in many cases, was not identified in concentrations above two standard deviations error. These data and statistical parameters were used for Final Status Survey (FSS) planning.

Statistical quantities from the characterization survey are provided in Table 1.Revision 0 5 Revision 0 5 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD Minimum Observed Concentration (pCi/g) :-1.26E-02 Maximum Observed Concentration (pCi/g): 9.35E-02 Mean (pCi/g): 3.05E-02 Median (pCi/g): 2.18E-02 Standard Deviation (pCi/g): 3.17E-02 A 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 (6) years of restoration and the 2006 characterization survey, it was concluded that there was a low probability for residual radioactivity to be present in concentrations greater than the DCGLs, justifying a final survey unit classification of Class C (refer to Section 3).3. DATA QUALITY OBJECTIVES (DQO)FSS design and planning used the Data Quality Objective (DQO) process as described by the LTP, Procedure RPM 5.1-11, "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 Final Status Survey Plan (FSSP).The primary objective of the FSSP was to demonstrate that the level of residual radioactivity in Survey Unit 9805-0000 did not exceed the release criteria specified in the LTP and that the potential dose from residual radioactivity is As Low As Reasonably Achievable (ALARA).Revision 0 6 Revision 0 6 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD A fundamental precursor to survey design is to establish a relationship between the release criteria and some measurable quantity of radioactivity.

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

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

Equation 1 shows the mathematical relationship between the three (3) components and the total dose.Equation 1 HTotal Hsoii +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) mrem/yr TEDE. To satisfy both the LTP and CY CTDEP criteria, the dose from soil must be reduced when using the existing and future groundwater dose values discussed above.This survey area is affected by existing groundwater (reference CY memo ISC 06-024). Therefore, the dose contribution from existing groundwater is bounded by two (2) mrem/yr TEDE.This survey unit is 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 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) mremlyr TEDE is designated as the Operational DCGL, and has been established for the radionuclides of concern as provided in Table 2.Revision 0 7 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD C-14 5.66E+00 3.85E+00 2.26E-0I Mn-54 1.74E+01 1.18E+01 6.96E-0I Fe-55 2.74E+04 1.86E+04 1 .1 OE+03 Co-60 3.81 E+00 2.59E+00 1.52E-01 Ni-63 7.231E+02 4.92E+02 2.89E+O1 Sr-90 1.55E+00 1.05E+00 6.20E-02 Nb-94 7.12E+00 4.84E+00 2.85E-01 Tc-99 1.26E+OI 8.57E+00 5.04E-01 Ag- 108m 7.14E+00 4.86E+00 2.86E-01 Cs- 134 4.67E+00 3.18E+00 1.87E-01 Cs-137 7.91E+00 5.38E+00 3.16E-0I Eu-I152 1.01E+OI 6.87E+00 4.04E-01 Eu- 154 9.29E+00 6.32E+00 3.72E-01 Eu- 155 3.92E+02 2.67E+02 1.57E+01 Pu-238 2.96E+O1 2.01E+01 1.18E+00 Pu-239/240 2.67E+OI 1.82E+01 1.07E+00 Pu-241 8.70E+02 5.92E+02 3.48E+O I Am-241(5) 2.58E+OI 1.75E+01 1.03E+00 Cm-243/244 2.90E+O 1 1.97E+01 1.1 6E+00 (I) Bold indicates those radionuclides considered to be hard to detect.(2) The Base Case Soil DCGLs for soil are specified by the LTP in Chapter 6 and are equivalent to twenty-five (25) mrem/yr TEDE.(3) The Operational DCGL is equivalent to seventeen (17) mrem/yr TEDE.(4) The required MDC is equivalent to one (1) mrem/yr TEDE.(5) Americium-241 can be analyzed by gamma and alpha spectroscopy and is considered to be Easy to Detect (ETD). The preferred result is the alpha spectroscopy's when both analyses are performed.

Another important facet of the DQO process is to identify the radionuclides of concern and determine the concentration variability.

Soil samples were collected in 2006 to characterize the radiological condition of Survey Unit 9805-0000 and provide data for FSS plan development.

Cs-137 was the only gamma emitting radionuclide reported in concentrations with the potential for exceeding the screening criteria.

The characterization data was used for the survey design and are provided in Table 1 of this report.As a component of the DQOs process that applies to laboratory analysis results, values were reported as actual calculated results and not as less than Minimum Revision 0 8 Revision 0 8 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD Detectable Concentration (MDC). 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 was developed based on the guidance provided in this procedure.

The DQO process determined that Cs- 137 was the only radionuclide of concern in Survey Unit 9805-0000 (refer to Section 3).Surrogate DCGLs were not required for this survey unit based the characterization data results along with accepted screening parameters provided in Section 5.4.7.2 of the LTP, "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 C 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.The number of soil samples for FSS was determined in accordance with Procedure RPM 5.1-12, "Determination of the Number of Surface Samples for Final Status Survey." The Lower Bound of the Gray Region (LBGR) was set in accordance with Procedure RPM 5.1-11 to 5.31 to maintain the relative shift (A/co) in the range of 1 and 3. The resulting Adjusted Relative Shift was 2.0. A Prospective Power Curve was generated using COMPASS, a software package developed under the sponsorship of the United States Nuclear Regulatory Commission (USNRC) for implementation of the MARSSIM in support of the decommissioning license termination rule (10CFR20, Subpart E). The result of the COMPASS computer run showed adequate power for the survey design. In accordance with LTP Section 5.7.3.2.2, fifteen (15) subsurface soil samples were required in a Class C subsurface soils survey unit for non-parametric statistical testing.The locations of the soil samples were determined using Visual Sample Plan (VSP) in accordance with Procedure RPM 5.1-14, "Identifying, and Marking Revision 0 9 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD 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 random sampling plan was selected for this survey unit, which is appropriate for a Class C survey unit.Judgmental sampling was included as a feature of this survey design to account for any anomalies potentially identified in the field. Five (5) additional subsurface soil samples were taken in this survey unit at biased locations determined by the FSS Engineer with input from FSS Supervision.

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.Revision 0 10 Revision 0 10 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD Table 3 -San ie~ Mareetcatins wýith.As~sociated GPS~&o~or~inaiites 1 .. esigpto. Northling Easting 9805-0000-001F 234806.27 671163.24 9805-0000-001FS 234806.27 671163.24 9805-0000-002F 235522.58 670585.49 9805-0000-003F 235108.08 670761.98 9805-0000-004F 235264.58 670664.34 9805-0000-004FS 235264.58 670664.34 9805-0000-005F 235161.91 671492.53 9805-0000-006F 235686.45 669582.03 9805-0000-007F 234979.41 671527.80 9805-0000-008F 235598.86 669981.67 9805-0000-009F 235746.54 669349.33 9805-0000-01 OF 235199.79 671125.76 9805-0000-011 F 235673.82 669616.49 9805-0000-012F 234814.33 671633.17 9805-0000-013F 235352.45 671415.67 9805-0000-014F 234911.61 671335.51 9805-0000-015F 236102.59 668877.77 9805-0000-016F 236057.35 668914.65 9805-0000-017F 235965.77 669081.53 9805-0000-018F 235948.06 669112.63 9805-0000-019F 235879.57 669241.74 9805-0000-020F 235235.37 670965.31 Procedure RPM 5.1-11 specifies that 5% of the samples are required to be selected for HTD analysis.

Two (2) soil samples, or about 13% of the total number of samples that were 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".Revision 0 I1I Revision 0 11 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD The implementation of quality control measures as referenced by Procedure RPM 5.1-24, "Split Sample Assessment for Final Status Survey," included the collection of two (2) soil samples for "split sample" analysis by the off-site laboratory.

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

The number of quality control soil samples was about 13% of the number of samples that were used for non-parametric statistical testing.Since 9805-0000 is a, subsurface survey unit, no scanning was required.For this Class C 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.Tabhle 4- Synopsis of the SUvey Design~A~~ Featu re .riteria' Basis Subsurface Survey Unit 130,380 m 2 Based on AutoCAD-LT Land Area Type I and Type 2 errors were 20 0.05, sigma was 0.032 pCi/g, Number of Measurements (15 random) LBGR was adjusted to 5.31 to (5 biased) maintain Relative Shift in the range of I and 3.Random sampling for Class C Grid Spacing N/A in accordance with LTP.Administratively set to achieve Operational DCGL 5.38 pCi/g Cs-137 seventeen (17) mrem/yr TEDE (1)The Operational DCGL meets Soil Investigation Level 5.38 pCi/g Cs-137 the LTP criteria for a Class C survey unit (1) The allowable dose for soil in this survey unit is seventeen (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 Final Status Survey field activities were conducted under Work Plan and Inspection Record (WP&IR) 2006-0007.

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.Revision 0 12 Revision 0 12 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD 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 (20) 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." Two (2) samples (9805-0000-008F and 9805-0000-013F) were randomly selected for HTD radionuclide analysis.The implementation of survey specific quality control measures included the collection of two (2) samples (9805-0000-001F and 9805-0000-004F) for "split sample" analysis.6. SURVEY RESULTS All field survey activities were conducted between September 20, 2006 and September 26, 2006.The off-site laboratory employed for the radiological analyses of samples was General Engineering Laboratories (GEL), LLC. The laboratory analyzed the fifteen (15) samples collected for non-parametric statistical testing, the associated field splits, and five (5) biased samples using gamma spectroscopy.

Gamma spectroscopy analysis was performed to the required MDCs. Gamma spectroscopy results identified only Cs-137 as meeting the accepted criteria for detection (i.e., a result greater than two standard deviations uncertainty).

Cs-137 was positively identified in four (4) of the fifteen (15) 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 approaching or 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 fifteen (15) samples collected for non-parametric statistical testing results is provided in Table 5. Refer to Attachment 2 for complete laboratory analysis results.Revision 0 13 Revision 0 13 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD 9805-0000-002F 1.64E-02 -0.001 9805-0000-003F 8.83E-02 0.024 9805-0000-004F 2.68E-02 0.006 9805-0000-005F 2.11E-02 0.007 9805-0000-006F 9.1OE-03 -0.005 9805-0000-007F

-4.24E-03 0.001 9805-0000-008F 6.28E-02 0.013 9805-0000-009F 1.47E-02 0.004 9805-0000-01OF 5.13E-02 0.016 9805-0000-01 IF 1.60E-02 0.006 9805-0000-012F 1.04E-02 0.001 9805-0000-013F 1.71E-03 0.001 9805-0000-014F 1.11E-02 0.002 9805-0000-015F 6.93E-02 0.015 (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 two (2) samples for HTD analysis as required by the sample plan. The requested analyses included alpha spectroscopy, gas proportional counting, and liquid scintillation depending on the radionuclide and the measurement method. All analyses met the required 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.

The results of samples that were analyzed for HTD radionuclides, by the off-site laboratory, indicated that they were all less than the accepted criteria for detection (i.e., a result greater than two standard deviations uncertainty).

Five (5) biased samples were collected at locations selected by FSS Supervision based on professional judgment and observation.

Gamma spectroscopy analysis was performed by the off-site laboratory to the required MDC. A summary of the five (5) biased sample results is provided in Table 6 of this report. Refer to Attachment 2 for complete laboratory analysis results.Revision 0 14 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD YZSUDIUUUUIU I oil 0.OOE+00 0.000 9805-0000-017F 3.42E-02 0.006 9805-0000-018F 2.57E-02 0.005 9805-0000-019F

-4.79E-03

-0.001 9805-0000-020F 2.89E-02 0.005 (1) The Operational DCGL from Table 2 is 5.38 pCi/g for Cs-137 to achieve seventeen (17)mrem/yr TEDE.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 locations 9805-0000-001 or 9805-0000-004 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, GEL, maintains quality control and quality assurance plans as part of normal operation.

Refer to Attachment 3 for data and data quality analysis results.8. INVESTIGATIONS AND RESULTS No investigations were conducted within this survey unit.9. REMEDIATION AND RESULTS A remediation was performed on the peninsula and subsurface survey unit 9807-0000 was created at the location of the remediation, see Section 1.Historically, no radiological remedial action as described by MARSSIM Section 5.4 was performed in this survey unit prior to or as a result of the FSS. Health Physics TSD BCY-HP-0078, "ALARA Evaluation of Soil Remediation in Support of Final Status Survey, " determined that remediation beyond that required to meet the release criteria is unnecessary and that the remaining residual radioactivity in soil was ALARA.10. CHANGES FROM THE FINAL STATUS SURVEY PLAN No changes were made to the FSS plan for this survey unit.Revision 0 15 Revision 0 15 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD 11. DATA QUALITY ASSESSMENT (DQA)The DQO sample design and data were reviewed in accordance with Procedure RPM 5.1-23, "Data Quality Assessment, " for completeness and consistency.

The sampling design had adequate power as indicated by the Retrospective Power Curve. The Sign Test was performed on the data and compared to the original assumptions of the DQOs. The evaluation of the Sign Test results demonstrates that the survey unit passes the unrestricted release criteria, thus, the null hypothesis is rejected.Documentation was complete and legible. Sample collection was consistent with the DQOs and was sufficient to ensure that the survey unit was properly designated as Class C.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 3.3 standard deviations, was not a particularly large variation considering that the levels were essentially at existing environmental levels where such variation is to be expected.

The difference between the mean and median was about 40% of the standard deviation which indicates significant skewness in the data. The data was represented graphically through posting plots, a frequency plot, and a quantile plot. The frequency plot indicates positive skewness as confirmed by the calculated skew of 1.17.All data, assessments, and graphical representations are provided in Attachment 3.12. ANOMALIES No anomalies were noted.13. CONCLUSION Survey Unit 9805-0000 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 and remediation was not required.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 C.The dose contribution from soil is less than 0.5 mrem/yr TEDE based on the average concentration of the samples used for non-parametric statistical sampling.Revision 0 16 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD This survey area is affected by existing groundwater (reference CY memo ISC 06-024); therefore the dose contribution from existing groundwater is bounded by 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.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 2.5 mrem/yr TEDE. Therefore, Survey Unit 9805-0000 is acceptable for unrestricted release.14. ATTACHMENTS 14.1 Attachment 1 -Figures 14.2 Attachment 2 -Laboratory Data 14.3 Attachment 3 -DQA Results Revision 0 17 Revision 0 17 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD ATTACHMENT 1 (FIGURES)

I1w loý -WatLN,-wA-" Ih I '0 0 0 0 2 7 S S&M 0 170 340 NAVVC..& 4 Ojo 014 Dat: Novembera206 Fgre 2 Conneccut Yankee Atmic Powtr Company Survey Unit 9805 Final Statos Swvey Plan Sample Locations 1'r WOtLAd-ArMsWI wm No 0.0160 0 0 0 0.0164 40042 0.0211 ý* D m 0.0264 aw cb..Ibw.-b NAWCAM.WW Sim& r- m I om I0.0017 I]O0-0.OOam 0 0.0.42, 0 400W7 o-0.Da: Novemb 2006 Figur 3 Conneccut Yankee Atmic Power Compay Swvvy Unit 9805 C*im-137Posting Plot (,oCi/)

SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD ATTACHMENT 2 (LABORATORY DATA)

$ O GENERAL ENGINEERING LABORATORIES, LLC a Member of THE GEL GROUP, INC.C, Meeting Today's Needs with a Vision for Tomorrow ro R~t5 October 12, 2006 Mr. Jack McCarthy Connecticut Yankee Atomic Power 362 Injun Hollow Rd East Hampton, Connecticut 06424 Re: Soils PO# 002332 Work Order: 172879 SDG: MSR#06-1311

Dear Mr. McCarthy:

General Engineering Laboratories, LLC (GEL) appreciates the opportunity to provide the following analytical results for the sample(s) we received on September 29, 2006. This data report has been prepared and reviewed in accordance with GEL's standard operating procedures.

Our policy is to provide high quality, personalized analytical services to enable you to meet your analytical needs on time every time. We trust that you will find everything in order and to your satisfaction.

If you have any questions, please do not hesitate to call me at (843) 556-8171, ext. 4243.Sincerely, Cheryl ýJones Project Manager Purchase Order: 002332 Chain of Custody: 2006-577 and 2006-578 Enclosures P.O. BOX 30712 Charleston, SC 29417

• 2040 Savage Road (29407)Phone (843) 656-8171

• Fax (843) 766-1178 www.gel.com Connecticut Yankee Atomic Power Co.Soils PO# 002332 Work Order: 172879 SDG: MSR#06-1311 Laboratory ID 172879001 172879002 172879003 172879004 172879005 172879006 172879007 172879008 172879009 172879010 172879011 172879012 172879013 172879014 172879015 172879016 172879017 172879018 172879019 172879020 172879021 172879022 Client ID 9805-0000-008F 9805-0000-009F 9805-0000-015F 9805-0000-006F 9805-0000-019F 9805-0000-017F 9805-0000-013F 9805-0000-016F 9805-0000-014F 9805-0000-01 IF 9805-0000-005F 9805-0000-018F 9805-0000-020F 9805-0000-01OF 9805-0000-OOIF 9805-0000-OO1FS 9805-0000-004F 9805-0000-004FS 9805-0000-002F 9805-0000-003F 9805-0000-012F 9805-0000-007F Table of Contents General Narrative

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

1 Chain of Custody and Supporting Documentation

...........

5 Data Review Qualifier Definitions

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

10 Radiological Analysis ...........................................................

12 Sample Data Summary .....................................................

34 Q uality C ontrol D ata .........................................................

82 General Narrative 1 General Narrative for Connecticut Yankee Atomic Power Co.Work Order: 172879 SDG: MSR#06-1311 October 12, 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 29, 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 172879001 172879002 172879003 172879004 172879005 172879006 172879007 172879008 172879009 172879010 172879011 172879012 172879013 172879014 172879015 172879016 172879017 172879018 172879019 172879020 172879021 172879022 Sample Description 9805-0000-008F 9805-0000-009F 9805-0000-015F 9805-0000-006F 9805-0000-019F 9805-0000-017F 9805-0000-013F 9805-0000-016F 9805-0000-014F 9805-0000-01 IF 9805-0000-005F 9805-0000-018F 9805-0000-020F 9805-0000-01OF 9805-0000-00IF 9805-0000-OO1FS 9805-0000-004F 9805-0000-004FS 9805-0000-002F 9805-0000-003F 9805-0000-012F 9805-0000-007F 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 -Fax-343) 766-1178 www.gel.com Items of Note 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 soil samples were analyzed for FSSGAM. Two soil samples were analyzed for FSSALL.Data Package The enclosed data package contains the following sections:

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

Radiochemistry.

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

CherlojeMnes Project Manager 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 -Fax343) 766-1178 www.gel.com List of current GEL Certifications as of 12 October 2006 State Certification Alaska UST-062 Arizona AZ0668 Arkansas 88-0651 CLIA 42D0904046 California 01151CA Colorado GenEngLabs Connecticut PH-0169 Dept. of Navy NFESC 413 EPA WG- 15J Florida/NELAP E87156 Georgia E87156 (FI/NELAP)

Hawaii N/A Idaho N/A Illinois 200029 Indiana C-SC-01 Kansas E-10332 Kentucky 90129 Louisiana 03046 Maryland 270 Massachusetts M-SC012 Michigan 9903 Nevada SC12 New Jersey SC002 New Mexico FL NELAP E87156 New York 11501 North Carolina 233 North Carolina Drinking W 45709 North Dakota R-158 Oklahoma 9904 Pennsylvania 68-00485 South Carolina 10120001/10585001/10120002 Tennessee 02934 Texas TX213-2006A Texas NELAP T104704235-06-TX U.S. Dept. of Agriculture S-52597 US Army Corps of Engineer N/A Utah 8037697376 GEL Vermont VT87156 Virginia 00151 Washington C 1641 4 Chain of Custody and Supporting Documentation 5

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-001 Major V V Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-577 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556

.Project Name: Haddam Neck Analyses Requested Lab Use Only Decommissioning 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:

F1 30 D. H 14 D. E] 7 D.Other: ri __Sample Designation Date Time Comment, Preservation Lab Sample ID 9805-0000-og -Fp /o 6 5- TS C BP x 9805-0000-0p9 .f o/o1 /, TS C BP ,_9805-0000-O--A 1 /,3c TS C BP A.X 9805-0000-0/-r, If- Z? -O / oo1 TS C BP 9805-0000-p I+- 17)!. 0 6 J3 0,5" TS C BP 9805-0000-0Li17

-7 o ,6 J.3 ?o TS C BP .X 9805-0000-C)/3 -f 9-/ " TS C BP __

C5 j6-2s6 -, TS C BP __9805-0000-6

/ q -r _ -,___-_6 __oO TS C BP x._-9805-0000-o i/1 -9 2 J0 /,y-1 TS C BP L 9805-0000-oo.p&4, -?S'-oC Io3s' TS C BP ,( _NOTES: PO #: 002332 MSR #:O(,- [E, LTP QA E] Radwaste QA E] Non Samples Shipped Via: Internal Container QA E Fed Ex Temp.Q___

Deg. C El UPS D] Hand Custody Sealed?y N 1) Relinquished By Date/Time 2M ived By Date/Time Custy Seal Intact?c-, k y0ý0 I E] Other 3) Relinquished By Date/Time

4) Received By Date/Time Bill of Lading N Connecticut Yankee Statement of Work for Analytical Lab Services CY-ISC-SOW-O01 Figure 1. Sample Check-in List Date/Time Received-9', 30at.3ýSDG#: Work Order Number: 9 '1*Shipping C Cdntainer ID: O RD(a1 Chain of Custody# "?00(,o -$ 77 1. Custody Seals or/shipping container intact?" Yes []2. Custody Seals dated and signed? Yes o [I].2. s' o-3. Chain-of-Custody record present? Yes No .]4. Cooler temperature 1 5. Vermiculite/packing materials is: Wet [ ] Dry 6. Number of samples in shipping container:

I t 7. Sample holding times exceeded?

Yes [No.8. Sanpies have: jjtape -hazard labels__ custody seals appropriate sample labels 9. Samples are.in good condition leaking broken have air bubbles 10. Were any anomalies identified in sample receipt? Yes No [ ]11. .Description of anomalies (include sample numbers): Sample CustodianlLaboratory:

C , , Date.:_ (. q/Telephoned to: On By_(

Health Physics Procedure GPP-GGGR-R5104-003-Attachment B-CY-001 Major p C 6p 0 Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-578 362 Injun Hollow Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Analyses Requested LabibUse Only D ecom m issioning

______...

...... ..._.. ...___.. .______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:

R 30 D. Z 14 D. [:D7 D.O th e r: ... .__VI) V)#Sample Designation Date Time a1 0 Comment, Preservation Lab Sample ID 9805-0000-bt -, q-tcq-(A CJAi -TS C BP X" 9805-0000- (cF q-tq.A- TS C BP _" 9805-0000-0 Ct-ikr O -\. 0jg \LA;- T$ C BP ___9805-0000-001 -r Tq-o0 0 TS C BP __9805-0000-0

/-)I9--19o6 j-'o TS C BP x _9805-0000-ooq

-F -2z "2-, jo TS C BP X_9805-0000-nq

--n 9-zo(, .TS C BP .9805-0000-000 -r 9- zz-o0 101o TS C BP _9805-0000-0,03-F 2-tz- o( .133,5 TS C BP X2 ....

IQ 9-,Z. o& /0,90 TS C BP _9805-0000-00 "7 -r 19 2Z-O, I/I TS C BP )(, .... .. .___,___ ._NOTES: PO #: 002332 MSR #:Upo- 13 II Z LTP QA Dj Radwaste QA ED Non Samples Shipped Via: Internal Container' QA Z Fed Ex Temp. L 2Deg.C El UPS El Hand ICustod~ Sealed?YN: 1) Relinquished By Date/Time eiedBY Date/Time

'Custody Seal Intact?El Other 3) Relinquished By Date/Time

4) Received By BillDate/Time ofL #Y N Bill of Lading #

• Connecticut Yankee Statement of Work for Analytical Lab Services CY-ISC-SOW-00I , Figure 1. Sample Check-in List.Date/Time Received: " ,O(a9 SDG#: ' -\Work Order Number: Y+/-2--f " Shipping Container ID.1 q Chain of Custody# c;707 '1. Custody Seals ori shipping container intact? Yes No[2. Custody Seals dated and signed? Yes[ No I.3. Chain-of-Custo'Jy record present? Yes No ]4. Cooler temperature ( O.5. Vermiculite/packing materials is: Wet [] Dry (6: Number of samples in shipping container:

____7. Sample holding times exceeded?

Yes [ No 8. Samples have:_2 tape -hazard labels-.....Custody seal~s -..appropriate Sample labels 9. Samples are'# ngood condition l.....eaking

-.broken h .have air bubbles 10. Were any anomalies identified in sample receipt? Yes 1: 11.. *Description of anomalies (include sample numbers):

,,k- .r.cc1 Sample Custodian/Laboratory:

t -Dt.___"____

TelephonedtoO B-Date.Telephoned to::n " 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.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

• FaLI&3) 766-1178 www.gel.com RADIOLOGICAL ANALYSIS 12 Radiochemistry Case Narrative Connecticut Yankee Atomic Power Co. (YANK)Work Order 172879 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 578044 574186 574161 Sample ID 172879001 172879007 1201204515 1201204516 1201204517 1201204518 Client ID 9805-0000-008F 9805-0000-013F Method Blank (MB)172879001 (9805-0000-008F)

Sample Duplicate (DUP)172879001(9805-0000-008F)

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-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.

13 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: 172879001 (9805-0000-008F).

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 Samples were reprepped due to high relative percent difference/relative error ratio.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: 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 Batch Number: Ash Soil Prep Dry Soil Prep 574558 574186 574161 Sample ID 172879001 172879007 1201197066 1201197067 1201197068 1201197069 Client ID 9805-0000-008F 9805-0000-013F Method Blank (MB)172879001(9805-0000-008F)

Sample Duplicate (DUP)172879001 (9805-0000-008F)

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-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 (00 Information:

Blank Information The blank volume is representative of the sample volumes in this batch.Designated QC The following sample was used for QC: 172879001 (9805-0000-008F).

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 Samples were recounted due to low/high recovery.Miscellaneous Information:

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

A nonconformance report (NCR) was not generated for this SDG.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: 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 578046 574186 574161 16 Sample ID Client ID 172879001 9805-0000-008F 172879007 9805-0000-013F 1201204519 Method Blank (MB)1201204520 172879001 (9805-0000-008F)

Sample Duplicate (DUP)1201204521 172879001(9805-0000-008F)

Matrix Spike (MS)1201204522 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.

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: 172879001 (9805-0000-008F).

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 Samples 172879001 (9805-0000-008F) and 172879007 (9805-0000-013F) were reprepped due to high relative percent difference/relative error ratio.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: Analytical Method: Prep Method: Analytical Batch Number: Prep Batch Number: Sample ID 172879021 172879022 1201196539 1201196540 1201196541 Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived EML HASL 300, 4.5.2.3 Dry Soil Prep 574336 574169 Client ID 9805-0000-012F 9805-0000-007F 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-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 18 All counting sources were prepared in the same geometry as the calibration standards.

Quality Control (QC) Information:

Blank Information The blank volume is representative of the sample volume in this batch.Designated QC The following sample was used for QC: 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.Qualifier information Qualifier Reason Analyte Sample UI Data rejected due to low abundance.

Cesium-134 1201196540 Method/Analysis Information 19 Product: Analytical Method: Prep Method: Analytical Batch Number: Prep Batch Number: Sample ID 172879001 172879002 172879003 172879004 172879005 172879006 172879007 172879008 172879009 172879010 172879011 172879012 172879013 172879014 172879015 172879016 172879017 172879018 172879019 172879020 1201196542 1201196543 1201196544 Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived EML HASL 300, 4.5.2.3 Dry Soil Prep 574337 574161 Client ID 9805-0000-008F 9805-0000-009F 9805-0000-015F 9805-0000-006F 9805-0000-019F 9805-0000-017F 9805-0000-013F 9805-0000-016F 9805-0000-014F 9805-0000-01 IF 9805-0000-005F 9805-0000-018F 9805-0000-020F 9805-0000-01OF 9805-0000-00IF 9805-0000-OO1FS 9805-0000-004F 9805-0000-004FS 9805-0000-002F 9805-0000-003F Method Blank (MB)172879001(9805-0000-008F)

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# 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).20 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: 172879001 (9805-0000-008F).

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 21 Qualifier U'UI Reason Data rejected due to high counting uncertainty.

Data rejected due to high peak-width.

Data rejected due to interference.

Data rejected due to low abundance.

UI U'Analyte Bismuth-212 Cesium- 137 Cesium- 134 Europium-155 Cesium- 134 Lead-212 Silver-108m Sample 172879019 172879008 1201196543 1201196543 172879013 172879016 172879004 172879005 172879006 172879009 172879011 172879015 172879018 172879019 172879020 1201196542 172879007 Method/Analysis Information Product: Analytical Method: Prep Method: Dry Soil Prep GL-RAD-A-021 Method: Analytical Batch Number: Prep Batch Number: Dry Soil Prep GL-RAD-A-021 Batch Number: GFPC, Sr9O, solid-ALL FSS EPA 905.0 Modified Ash Soil Prep Dry Soil Prep 574221 574186 574161 22 Sample ID Client ID 172879001 9805-0000-008F 172879007 9805-0000-013F 1201196231 Method Blank (MB)1201196232 172875011(9520-0003-01OF)

Sample Duplicate (DUP)1201196233 172875011(9520-0003-O0OF)

Matrix Spike (MS)1201196234 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 (00 Information:

Blank Information The blank volume is representative of the sample volume in this batch.Designated QC The following sample was used for QC: 172875011 (9520-0003-010F).

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.23 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 172879001 172879007 1201195648 1201195649 1201195650 1201195651 DOE EML HASL-300, Tc-02-RC Modified 574010 Client ID 9805-0000-008F 9805-0000-013F Method Blank (MB)172879001(9805-0000-008F)

Sample Duplicate (DUP)172879001(9805-0000-008F)

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-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.

24 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: 172879001 (9805-0000-008F).

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 Sample 172879007 (9805-0000-013F) was recounted due to high MDA.Miscellaneous Information:

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

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Method/Analysis Information Product: Liquid Scint Fe55, Solid-ALL FSS DOE RESL Fe- 1, Modified Analytical Method: Prep Method: Dry Soil Prep GL-RAD-A-021 Method: Analytical Batch Number: Prep Batch Number: Dry Soil Prep GL-RAD-A-021 Batch Number: Ash Soil Prep Dry Soil Prep 574527 574186 574161 25 Sample ID Client ID 172879001 9805-0000-008F 172879007 9805-0000-013F 1201196975 Method Blank (MB)1201196976 172875001(9520-0003-002F)

Sample Duplicate (DUP)1201196977 172875001(9520-0003-002F)

Matrix Spike (MS)1201196978 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 (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: 172875001 (9520-0003-002F).

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

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

26 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: 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 574530 574186 574161 Sample ID 172879001 172879007 1201196983 1201196984 1201196985 1201196986 Client ID 9805-0000-008F 9805-0000-013F Method Blank (MB)172879007(9805-0000-013F)

Sample Duplicate (DUP)172879007(9805-0000-013F)

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-022 REV# 8.Calibration Information:

Calibration Information All initial and continuing calibration requirements have been met.27 Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s).Sample Geometry All counting sources were prepared in the same geometry as the calibration standards.

Quality Control (OC) Information:

Blank Information The blank volume is representative of the sample volume in this batch.Designated QC The following sample was used for QC: 172879007 (9805-0000-013F).

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

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Method/Analysis Information Product: LSC, Tritium Dist, Solid-HTD2,ALL FSS Analytical Method: EPA 906.0 Modified Analytical Batch Number: 579033 28 Sample ID Client ID 172879001 9805-0000-008F 172879007 9805-0000-013F 1201206809 Method Blank (MB)1201206810 172879001(9805-0000-008F)

Sample Duplicate (DUP)1201206811 172879001(9805-0000-008F)

Matrix Spike (MS)1201206812 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.

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: 172879001 (9805-0000-008F).

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 Sample 172879001 (9805-0000-008F) was recounted due to high MDA. Samples were reprepped due to low/high recovery.29 Miscellaneous Information:

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

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.Method/Analysis Information Product: Liquid Scint C14, Solid AII,FSS Analytical Method: Analytical Batch Number: Sample ID 172879001 172879007 1201195657 1201195658 1201195659 1201195660 EPA EERF C-01 Modified 574014 Client ID 9805-0000-008F 9805-0000-013F Method Blank (MB)172875001 (9520-0003-002F)

Sample Duplicate (DUP)172875001 (9520-0003-002F)

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-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.

30 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: 172875001 (9520-0003-002F).

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

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

Miscellaneous Information:

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

A nonconformance report (NCR) was not generated for this SDG.Additional Comments Additional comments were not required for this sample set.Qualifier information Manual qualifiers were not required.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:

31 R evi ewer/flnte" Reviewer/Date:

32 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: Lesley Anderson 09-OCT-06 05-OCT-06 Director: Page 1 33 SAMPLE DATA

SUMMARY

34 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis Report for YANKOO Connecticut Yankee Atomic Power Co.Client SDG: MSR#06-1311 GEL Work Order: 172879 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 35 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 18, 2006 Project: Soils PO# 002332 Client Sample ID: 9805-0000-008F Project: YANK01204 Sample ID: 172879001 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 20-SEP-06 Receive Date: 29-SEP-06 Collector:

Client Moisture:

22.9%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 -0.0902 Curium-242 U -0.143 Curium-243/244 U -0.0746 Alphaspec Pu, Solid-ALL FSS Plutonium-238 U -0.0161 Plutonium-239/240 U 0.047 Liquid Scint Pu241, Solid-ALL FSS+/-0.120+/-0.0702+/-0.172 0.136 +/-0.121 0.134 +/-0.0724 0.167 +/-0.173 0.364 0.369 0.425 0.302 0.270 pCi/g pCi/g pCi/g pCi/g pCi/g+/-0.127 0.112 +/-0.127+/-0.135 0.0963 +/-0.135 Plutonium-241 Rad Gamma Spec Analysis U 2.68 +/-7.20 5.92 +/-7.20 12.4 pCi/g Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.897 Americium-241 U 0.0267 Bismuth-212 0.812 Bismuth-214 0.605 Cesium-134 U 0.0441 Cesium-137 0.0628 Cobalt-60 U 0.00292 -Europium-152 U 0.0115 -Europium-154 U -0.0674 -Europium-155 U 0.0406 Lead-212 0.941 -Lead-214 0.743 Manganese-54 U 0.00738 Niobium-94 U-0.000653 Potassium-40 14.8 Radium-226 0.605 Silver-108m U -0.0179 Thallium-208 0.323 Rad Gas Flow Proportional Counting GFPC, Sr90, solid-ALL FSS Strontium-90 U -0.0136 +/Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid-HTD2,ALL FSS Tritium U -3.35+/-0.244 F/-0.0306+/-0.347 F/-0.0985 F/-0. 03 79+/-0.0298+/-0.0266+/-0.0583+I-0.0873 FI-0.0597 i-/-0.0704 F/-0.0907 F/-0.0274 F/-0.0237+1-1.20+/-0.0985 F/-0.0198 F/-0.0621 0.0721 0.0277 0.146 0.0413 0.0305 0.0189 0.0227 0.0504 0.0661 0.0464 0.0284 0.0384 0.0235 0.0202 0.188 0.0413 0.0164 0.0219+/-0.244+/-0.0306+/-0.347+/-0.0985+/-0.0379+/-0.0298+/-0.0266+/-0.0583+/-0.0873+/-0.0597+/-0.0704+/-0.0907+/-0.0274+/-0.0237+/-1.20+/-0.0985+/-0.0198+/-0.0621 0.159 0.0576 0.320 0.0884 0.0651 0.0412 0.051 0.107 0.147 0.0967 0.0596 0.0813 0.0509 0.0434 0.431 0.0884 0.0354 0.047 0.021 12.9 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 JAS1 10/12/06 1617 578044 1 JASI 10/12/06 1204 578046 3 JAS1 10/10/06 1648 574558 5 MJH1 10/10/06 0811 574337 7 KSD1 10/04/06 2326 574221 8 MXP1 10/17/06 1654 579033 9-0.00982 0.00955 +/-0.00982

+/-6.99 6.06 +/-6.99 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 18, 2006 Client Sample ID: Sample ID: 9805-0000-008F 172879001 Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Rad Liquid Scintillation Analysis Liquid Scint C14, Solid AIIFSS Carbon- 14 U -0.00713 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U -11.1 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U 2.80 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.0681 Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd+/-0.0754 0.0636 +/-0.0754 0.133+/-36.9 26.6 +/-36.9 55.5+/-5.46 4.47 +/-5.46 9.36+/-0.263 0.223 +/-0.263 0.460 pCi/g pCi/g pCi/g pCi/g AXD2 10/03/06 2107 574014 13 MXP1 10/04/06 2022 574527 14 MXP1 10/06/06 1032 574530 15 KXR1 10/09/06 0823 574010 17 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/29/06 1557 574161 The following Analytical Methods were performed Method Description 1 DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Am-05-RC Modified 3 DOE EML HASL-300, Pu- 11-RC Modified 4 DOE EML HASL-300, Pu-i I-RC Modified 5 DOE EML HASL-300, Pu- 11 -RC Modified 6 DOE EML HASL-300, Pu-11-RC Modified 7 EML HASL 300, 4.5.2.3 8 EPA 905.0 Modified 9 EPA 906.0 Modified 10 EPA 906.0 Modified 11 EPA 906.0 Modified 12 EPA 906.0 Modified 13 EPA EERF C-01 Modified 14 DOE RESL Fe-I, Modified 15 DOE RESL Ni-1, Modified 16 DOE RESL Ni-1, Modified 17 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery % Acceptable Limits 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 East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: 9805-0000-008F 172879001 Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd 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 97 96 92 68 81 78 (15%-125%)

(15%-125%)

(25%- 125%)(25%-125%)

(15%-125%)

(25%-125%)

(15%-125%)

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, MIDA, 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 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: Qualifier Result Uncertainty 9805-0000-009F 172879002 TS 20-SEP-06 29-SEP-06 Client 25.5%Proiect: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter 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 1.17 +/-0.255 Americium-241 U 0.0312 +/-0.048 Bismuth-212 0.812 +/-0.458 Bismuth-214 0.763 +/-0.151 Cesium-134 U 0.0688 +/-0.0507 Cesium-137 U 0.0147 +/-0.0426 Cobalt-60 U 0.00264 +/-0.0371 Europium-152 U -0.046 +/-0.0783.Europium-154 U -0.135 +/-0.148 Europium-155 U -0.0469 +/-0.0775 Lead-212 1.29 +/-0.102 Lead-214 1.03 +/-0.143 Manganese-54 U -0.0197 +/-0.0423 Niobium-94 U 0.0266 +/-0.0496 Potassium-40 15.6 +/-1.52 Radium-226 0.763 +/-0.151 Silver- 108m U -0.00124 +/-0.0297 Thallium-208 0.365 +/-0.0863 0.114 0.045 0.267 0.0644 0.0405 0.0371 0.0316 0.0664 0.0886 0.0669 0.0411 0.0528 0.0333 0.0289 0.317 0.0644 0.0258 0.0282+/-0.255+/-0.048+/-0.458+/-0.151+/-0.0507+/-0.0426+/-0.0371+/-0.0783+/-0.148+/-0.0775+/-0.102+/-0.143+/-0.0423+/-0.0496+/-1.52+/-0.151+/-0.0297+/-0.0863 0.249 0.0932 0.575 0.138 0.0874 0.0796 0.0716 0.142 0.200 0.139 0.0863 0.112 0.0724 0.0626 0.719 0.138 0.0553 0.0613 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 10/10/060811 574337 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 09/29/06 1557 574161 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 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 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-009F Project: YANK01204 Sample ID: 172879002 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 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-015F 172879003 TS 20-SEP-06 29-SEP-06 Client 9.44%Project: 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 Gamrna,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.425 +/-0.132 Americium-241 U -0.0228 +/-0.0622 Bismuth-212 0.373 +/-0.228 Bismuth-214 0.389 +/-0.0646 Cesium-134 U 0.0277 +/-0.0155 Cesium-137 0.0693 +/-0.0318 Cobalt-60 U 0.00618 +/-0.0146 Europium-152 U 0.00611 +/-0.0416 Europium-154 U 0.0538 +/-0.0515 Europium-155 U 0.00977 +/-0.0484 Lead-212 0.462 +/-0.0497 Lead-214 0.384 +/-0.0646 Manganese-54 U 0.00535 +/-0.0155 Niobium-94 U 0.00853 +/-0.0141 Potassium-40 11.6 +/-0.743 Radium-226 0.389 +/-0.0646 Silver-108m U 0.0118 +/-0.0154 Thallium-208 0.155 +/-0.0299 0.0485 0.0525 0.107 0.0263 0.0172 0.0131 0.0129 0.0337 0.048 0.0453 0.0221 0.0264 0.0141 0.0132 0.115 0.0263 0.0121 0.0141+/-0.132+/-0.0622+/-0.228+/-0.0646+/-0.0155+/-0.0318+/-0.0146+/-0.0416+/-0.0515+/-0.0484+/-0.0497+/-0.0646+/-0.0155+/-0.0141+/-0.743+/-0.0646+/-0.0154+/-0.0299 0.105 0.109 0.229 0.0558 0.0366 0.0281 0.0287 0.0714 0.104 0.0942 0.0461 0.0557 0.0302 0.0281 0.257 0.0558 0.0256 0.030 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 10/10/06 0829 574337 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 09/29/06 1557 574161 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 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 Report Date: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-015F Project: YANK01204 Sample ID: 172879003 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.42 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Certificate of Analysis v -- i Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-006F 172879004 TS 22-SEP-06 29-SEP-06 Client 15.3%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 0.659 +/-0.153 Americium-241 U 0.00343 +/-0.0894 Bismuth-212 0.450 +/-0.236 Bismuth-214 0.443 +/-0.0698 Cesium-134 UI 0.00 +/-0.0323 Cesium-137 U 0.0091 +/-0.0227 Cobalt-60 U -0.0183 +/-0.0193 Europium-152 U -0.0182 +/-0.0455 Europium-154 U -0.00358 +/-0.0587 Europium-155 U 0.0136 +/-0.0477 Lead-212 0.611 +/-0.0511 Lead-214 0.479 +/-0.0675 Manganese-54 U 0.033 +/-0.0185 Niobium-94 U 0.0152 +/-0.0167 Potassium-40 12.0 +/-0.885 Radium-226 0.443 +/-0.0698 Silver-108m U 0.000494 +/-0.0137 Thallium-208 0.190 +/-0.0362 0.0501 0.0812 0.111 0.0271 0.0211 0.0177 0.0142 0.0383 0.0499 0.0464 0.0223 0.0318 0.0156 0.0156 0.141 0.0271 0.0125 0.0146+/-0.153+/-0.0894+/-0.236+/-0.0698+/-0.0323+/-0.0227+/-0.0193+/-0.0455+/-0.0587+/-0.0477+/-0.0511+/-0.0675+/-0.0185+/-0.0167+/-0.885+/-0.0698+/-0.0137+/-0.0362 0.109 0.168 0.239 0.0581 0.0449 0.0376 0.032 0.081 0.109 0.0961 0.0465 0.0666 0.0337 0.0331 0.317 0.0581 0.0267 0.0312 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 10/10/06 0918 574337 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 09/29/06 1557 574161 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 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 Report Date: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-006F Project: YANK01204 Sample ID: 172879004 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.44 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 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-019F 172879005 TS 25-SEP-06 29-SEP-06 Client 4.74%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 0.678 +/-0.133 Americium-241 U 0.0404 +/-0.0963 Bismuth-212 0.475 +/-0.162 Bismuth-214 0.704 +/-0.0724 Cesium- 134 UI 0.00 +/-0.0246 Cesium-137 U -0.00479 +/-0.0142 Cobalt-60 U -0.00361 +/-0.014 Europium-152 U -0.0378 +/-0.0372 Europium-154 U -0.0397 +/-0.0446 Europium-155 U 0.0118 +/-0.0477 Lead-212 0.648 +/-0.0463 Lead-214 0.819 +/-0.0648 Manganese-54 U -0.00151 +/-0.0158 Niobium-94 U 0.0104 +/-0.013 Potassium-40 12.6 +/-0.679 Radium-226 0.704 +/-0.0724 Silver-108m U -0.00444 +/-0.012 Thallium-208 0.185 +/-0.0295 0.0455 0.0812 0.0882 0.025 0.015 0.0118 0.0119 0.0324 0.0361 0.0458 0.022 0.0225 0.0138 0.0121 0.115 0.025 0.0105 0.0131+/-0.133+/-0.0963+/-0.162+/-0.0724+/-0.0246+/-0.0142+/-0.014+/-0.0372+/-0.0446+/-0.0477+/-0.0463+/-0.0648+/-0.0158+/-0.013+/-0.679+/-0.0724+/-0.012+/-0.0295 0.0962 0.167 0.187 0.0524 0.0315 0.025 0.0258 0.0676 0.0776 0.0943 0.0455 0.0471 0.029 0.0254 0.250 0.0524 0.022 0.0274 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g MJH1 10/10/06 0918 574337 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 09/29/06 1557 574161 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 45 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: 9805-0000-019F Project: YANK01204 Sample ID: 172879005 Client ID: YANKOO0 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MD1A 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.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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-017F 172879006 TS 25-SEP-06 29-SEP-06 Client 5.61%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 0.821 U 0.0625 0.425 0.711 Ul 0.00 0.0342 U -0.0125 U -0.0203 U 0.043 U 0.00668 0.741 0.749 U 0.0101 U 0.00877 11.9 0.711 U -0.00256 0.240+/-0.139+/-0.0805+/-0.218+/-0.0743+/-0.0231+/-0.0212+/-0.0166+/-0.0414+/-0.0567+/-0.0442+/-0.0518+/-0.0768+/-0.0197+/-0.0221+/-0.698+/-0.0743+/-0.0129+/-0.0366 0.0439 0.0752 0.0982 0.026 0.0181 0.0142 0.0128 0.0348 0.0517 0.0427 0.0216 0.0268 0.0154 0.0123 0.130 0.026 0.0116 0.0147+/-0.139+/-0.0805+/-0.218+/-0.0743+/-0.0231+/-0.0212+/-0.0166+/-0.0414+/-0.0567+1-0.0442+/-0.0518+/-0.0768+/-0.0197+/-0.0221+/-0.698+/-0.0743+/-0.0129+/-0.0366 0.0947 0.155 0.210 0.055 0.0382 0.0301 0.0283 0.0729 0.111 0.0879 0.0447 0.056 0.0327 0.0261 0.286 0.055 0.0245 0.0309 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 10/10/06 1123 574337 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 09/29/06 1557 574161 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 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 Report Date: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-017F Proiect: YANK01204 Sample ID: 172879006 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.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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-013F 172879007 TS 25-SEP-06 29-SEP-06 Client 4.42%Project: 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 -0.0265 Curium-242 U -0.016 Curium-243/244 U -0.14 Alphaspec Pu, Solid-ALL FSS Plutonium-238 U 0.119 Plutonium-239/240 U 0.0347 Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U 4.78 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.676 Americium-241 U 0.0218 Bismuth-212 0.508 Bismuth-214 0.531 Cesium-134 U 0.0219 Cesium-137 U 0.00171 Cobalt-60 U 0.00126 Europium-152 U 0.0307 Europium-154 U 0.0112 Europium-155 U 0.0549 Lead-212 0.643 Lead-214 0.613 Manganese-54 U 0.0169 Niobium-94 U 0.00931 Potassium-40 10.5 Radium-226 0.531 Silver-108m Ul 0.00 Thallium-208 0.206 Rad Gas Flow Proportional Counting+/-0.0748+/-0.0222+/-0.0925 0.0785 0.0423 0.133+/-0.0748+/-0.0222+/-0.094 0.241 0.175 0.350 0.237 0.210 pCi/g pCi/g pCi/g pCi/g pCi/g+/-0.151 0.0733 +/-0.152+/-0.0976 0.0599 +/-0.0977+/-8.24 6.71 +/-8.27 14.1 pCi/g+/-0.159+/-0.0592+/-0.241+/-0.0926+/-0.0285+/-0.0187+/-0.028+/-0.0582+/-0.0599+/-0.0527+/-0.0753+/-0.0942+/-0.0189+/-0.0164+/-1.08+/-0.0926+/-0.0254+/-0.0458 0.0611 0.0553 0.123 0.029 0.0208 0.0167 0.0144 0.0395 0.0533 0.0491 0.0254 0.029 0.0179 0.0152 0.133 0.029 0.0144 0.0159+/-0.159+/-0.0592+/-0.241+/-0.0926+/-0.0285+/-0.0187+/-0.028+/-0.0582+/-0.0599+/-0.0527+/-0.0753+/-0.0942+/-0.0189+/-0.0164+/-1.08+/-0.0926+/-0.0254+/-0.0458 0.134 0.115 0.268 0.0629 0.0449 0.0363 0.0332 0.0843 0.118 0.102 0.0533 0.0619 0.0387 0.033 0.308 0.0629 0.0309 0.0344 0.0297 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 JAS1 10/12/06 1617 578044 1 JASI 10/12/06 1204 578046 3 JASI 10/10/06 1704 574558 5 MJH1 10/10/06 1123 574337 7 KSD1 10/04/06 2326 574221 8 MXP1 10/16/06 1907 579033 9 GFPC, Sr90, solid-ALL FSS Strontium-90 U -0.0 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid-HTD2,ALL FSS Tritium U 0219 +/-0.0162 0.0138 +/-0.0162 1.80 +/-7.41 6.10 +/-7.41 13.1 pCi/g 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 18, 2006 Client Sample ID: Sample ID: 9805-0000-013F 172879007 Project: YANKO1204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Rad Liquid Scintillation Analysis Liquid Scint C14, Solid AllFSS Carbon-14 U -0.0255 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U -15.1 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U 9.42 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U 0.118 Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd+/-0.080 0.0682 +/-0.080+/-30.9 22.3 +/-30.9+/-6.03 4.67 +/-6.04+/-0.255 0.210 +/-0.255 0.143 46.5 9.79 0.436 pCi/g pCi/g pCi/g pCi/g AXD2 10/03/06 2210 574014 12 MXP1 10/04/06 2038 574527 13 MXP1 10/06/06 1103 574530 14 KXRI 10/10/06 1045 574010 16 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 09/29/06 1557 574161 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Am-05-RC Modified 3 DOE EML HASL-300, Pu- Il -RC Modified 4 DOE EML HASL-300, Pu- I -RC Modified 5 DOE EML HASL-300, Pu- Il -RC Modified 6 DOE EML HASL-300, Pu- lI -RC Modified 7 EML HASL 300, 4.5.2.3 8 EPA 905.0 Modified 9 EPA 906.0 Modified 10 EPA 906.0 Modified 11 EPA 906.0 Modified 12 EPA EERF C-01 Modified 13 DOE RESL Fe-1, Modified 14 DOE RESL Ni-1, Modified 15 DOE RESL Ni-1, Modified 16 DOE EML HASL-300, Tc-02-RC Modified 17 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery%

Acceptable Limits 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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: 9805-0000-013F 172879007 Proiect: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd 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 F5 GFPC, Sr90, solid-ALL FSS Liquid Scint Fe55, Solid-ALL FS Liquid Scint Ni63, Solid-ALL FS Liquid Scint Tc99, Solid-ALL FS 96 89 72 82 73 79 71 (15%-125%)

(15%-125%)

(25%-125%)

(25%-125%)

(15%-125%)

(25%-125%)

(15%-125%)

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.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 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-016F 172879008 TS 25-SEP-06 29-SEP-06 Client 7.06%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 0.820 +/-0.131 Americium-241 U -0.00717 +/-0.134 Bismuth-212 0.643 +/-0.222 Bismuth-214 0.609 +/-0.0947 Cesium-134 U 0.0383 +/-0.0292 Cesium- 137 UI 0.00 +/-0.042 Cobalt-60 U 0.0141 +/-0.0107 Europium-152 U -0.0142 +/-0.0476 Europium-154 U -0.0633 +/-0.0555 Europium-155 U 0.0238 +/-0.0607 Lead-212 0.816 +/-0.0603 Lead-214 0.679 +/-0.0832 Manganese-54 U 0.0149 +/-0.0188 Niobium-94 U -0.00632 +/-0.0164 Potassium-40 10.6 +/-0.722 Radium-226 0.609 +/-0.0947 Silver-108m U -0.00913 +/-0.0138 Thallium-208 0.263 +/-0.0396 0.0527 0.0951 0.120 0.032 0.0183 0.0147 0.015 0.0426 0.0425 0.0583 0.0259 0.0312 0.014 0.0142 0.128 0.032 0.0116 0.0157+/-0.131+/-0.134+/-0.222+/-0.0947+/-0.0292+/-0.042+/-0.0107+/-0.0476+/-0.0555+/-0.0607+/-0.0603+/-0.0832+/-0.0188+/-0.0164+/-0.722+/-0.0947+/-0.0138+/-0.0396 0.114 0.198 0.256 0.0676 0.039 0.0316 0.0332 0.0896 0.0934 0.121 0.0539 0.0656 0.0302 0.0303 0.287 0.0676 0.0248 0.0334 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 10/10/06 1124 574337 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 09/29/06 1557 574161 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 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 Report Date: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-016F Project: YANK01204 Sample ID: 172879008 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.Ul Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis.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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-014F 172879009 TS 25-SEP-06 29-SEP-06 Client 4.55%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 0.680 +/-0.133 Americium-241 U -0.00676 +/-0.024 Bismuth-212 0.410 +/-0.241 Bismuth-214 0.699 +/-0.0831 Cesium- 134 UI 0.00 +/-0.0293 Cesium-137 U 0.0111 +/-0.0196 Cobalt-60 U 0.00104 +/-0.0195 Europium-152 U -0.0225 +/-0.0421 Europium-154 U 0.0544 +/-0.0622 Europium-155 U 0.0483 +/-0.0411 Lead-212 0.793 +/-0.0517 Lead-214 0.683 +/-0.0744 Manganese-54 U -0.00106 +/-0.019 Niobium-94 U 0.00614 +/-0.0179 Potassium-40 13.4 +/-0.846 Radium-226 0.699 +/-0.0831 Silver-108m U 0.000646 +/-0.0139 Thallium-208 0.255 +/-0.0419 0.0509 0.0229 0.114 0.0265 0.0208 0.0157 0.0167 0.0376 0.0573 0.0396 0.0219 0.0274 0.016 0.0158 0.151 0.0265 0.0126 0.0148+/-0.133+/-0.024+/-0.241+/-0.0831+/-0.0293+/-0.0196+/-0.0195+/-0.0421+/-0.0622+/-0.0411+/-0.0517+/-0.0744+/-0.019+/-0.0179+/-0.846+/-0.0831+/-0.0139+/-0.0419 0.109 0.0468 0.242 0.0562 0.0438 0.0333 0.0363 0.0786 0.122 0.0813 0.0452 0.0573 0.034 0.0332 0.331 0.0562 0.0264 0.0313 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 10/10/06 2057 574337 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 09/29/06 1557 574161 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 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 East Hampton, Connecticut 06424 Report Date: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-014F Proiect: YANKO 1204 Sample ID: 172879009 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.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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-011F 172879010 TS 25-SEP-06 29-SEP-06 Client 17.4%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 0.764 +/-0.270 Americium-241 U -0.00199 +/-0.0494 Bismuth-212 U 0.441 +/-0.420 Bismuth-214 0.652 +/-0.148 Cesium-134 U 0.0318 +/-0.0406 Cesium-137 U 0.016 +/-0.0322 Cobalt-60 U 0.0078 +/-0.036 Europium-152 U 0.0333 +/-0.094 Europium-154 U 0.126 +/-0.127 Europium-155 U 0.0903 +/-0.0956 Lead-212 0.863 +/-0.113 Lead-214 0.599 +/-0.121 Manganese-54 U -0.0261 +/-0.0364 Niobium-94 U 0.00303 +/-0.0315 Potassium-40 13.8 +/-1.41 Radium-226 0.652 +/-0.148 Silver-108m U 0.00997 +/-0.0285 Thallium-208 0.282 +/-0.0756 0.101 0.0393 0.252 0.0585 0.0379 0.0297 0.0311 0.0702 0.119 0.0599 0.0361 0.0492 0.0291 0.0279 0.296 0.0585 0.0254 0.0281+/-0.270+/-0.0494+/-0.420+/-0.148+/-0.0406+/-0.0322+/-0.036+/-0.094+/-0.127+/-0.0956+/-0.113+/-0.121+/-0.0364+/-0.0315+/-1.41+/-0.148+/-0.0285+/-0.0756 0.201 0.0786 0.503 0.117 0.0757 0.0594 0.0623 0.140 0.239 0.120 0.0722 0.0983 0.0582 0.0557 0.591 0.117 0.0508 0.0562 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 10/11/06 1006 574337 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 09/29/06 1557 574161 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 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 Report Date: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-011F Project: YANK01204 Sample ID: 172879010 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.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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: 9805-0000-005F Project: YANK01204 Sample ID: 172879011 Client ID: YANKOOl Matrix: TS Vol. Recv.: Collect Date: 25-SEP-06 Receive Date: 29-SEP-06 Collector:

Client Moisture:

19.2%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 0.972 +/-0.187 Americium-241 U 0.028 +/-0.0957 Bismuth-212 0.605 +/-0.277 Bismuth-214 0.634 +/-0.0959 Cesium-134 UI 0.00 +/-0.043 Cesium- 137 U 0.0211 +/-0.023 Cobalt-60 U 0.00902 +/-0.0234 Europium-152 U -0.00325 +/-0.0588 Europium-154 U 0.0995 +/-0.0875 Europium-155 U 0.0465 +/-0.0604 Lead-212 0.880 +/-0.0678 Lead-214 0.767 +/-0.0788 Manganese-54 U 0.00518 +/-0.0268 Niobium-94 U 0.0222 +/-0.0266 Potassium-40 14.8 +/-1.00 Radium-226 0.634 +/-0.0959 Silver-108m U -0.00273 +/-0.0189 Thallium-208 0.311 +/-0.0421 0.0619 0.0806 0.140 0.0328 0.0255 0.0183 0.0206 0.0449 0.0658 0.0555 0.0275 0.0331 0.0201 0.0181 0.159 0.0328 0.016 0.0173+/-0.187+/-0.0957+/-0.277+/-0.0959+/-0.043+/-0.023+/-0.0234+/-0.0588+/-0.0875+/-0.0604+/-0.0678+/-0.0788+/-0.0268+/-0.0266+/- 1.00+/-0.0959+/-0.0189+/-0.0421 0.133 0.166 0.299 0.0697 0.0537 0.039 0.045 0.0943 0.142 0.114 0.0571 0.0696 0.0428 0.0383 0.356 0.0697 0.0338 0.0367 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 10/11/06 1333 574337 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 09/29/06 1557 574161 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 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 Report Date: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-005F Proiect: YANK01204 Sample ID: 172879011 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.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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-018F 172879012 TS 19-SEP-06 29-SEP-06 Client 5.27%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 0.675 +/-0.161 Americium-241 U 0.00915 +/-0.129 Bismuth-212 0.389 +/-0.257 Bismuth-214 0.608 +/-0.0793 Cesium- 134 U 0.0374 +/-0.0255 Cesium-137 U 0.0257 +/-0.0249 Cobalt-60 U -0.005 +/-0.0183 Europium-152 U 0.0349 +/-0.0485 Europium-154 U 0.0137 +/-0.0569 Europium-155 U 0.00511 +/-0.0504 Lead-212 0.691 +/-0.0551 Lead-214 0.719 +/-0.0882 Manganese-54 U -0.00268 +/-0.0196 Niobium-94 U -0.00705 +/-0.0168 Potassium-40 10.3 +/-0.785 Radium-226 0.608 +/-0.0793 Silver-108m U 0.00471 +/-0.0156 Thallium-208 0.231 +/-0.0377 0.0523 0.093 0.141 0.0283 0.0204 0.0159 0.015 0.0438 0.0499 0.0482 0.0244 0.029 0.0164 0.014 0.141 0.0283 0.0144 0.015+/-0.161+/-0.129+/-0.257+/-0.0793+/-0.0255+/-0.0249+/-0.0183+/-0.0485+/-0.0569+/-0.0504+/-0.0551+/-0.0882+/-0.0196+/-0.0168+/-0.785+/-0.0793+/-0.0156+/-0.0377 0.114 0.193 0.299 0.0603 0.0435 0.034 0.0334 0.0918 0.109 0.0999 0.0508 0.0611 0.0352 0.0299 0.317 0.0603 0.0305 0.0321 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 10/11/06 1333 574337 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 09/29/06 1602 574169 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 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 Report Date: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-018F Project: YANK01204 Sample ID: 172879012 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.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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-020F 172879013 TS 19-SEP-06 29-SEP-06 Client 19.2%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 0.927 U 0.00879 0.753 0.605 U 0.0521 U 0.0289 U 0.00547 U -0.0225 U -0.0587 UI 0.00 0.846 0.810 U 0.0011 U 0.0159 12.7 0.605 U 0.00352 0.254+/-0.163+/-0.094+/-0.282+/-0.104+/-0.0484+/-0.0249+/-0.0209+/-0.0558+/-0.065+/-0.0995+/-0.0702+/-0.109+/-0.0222+/-0.0199+/-0.982+/-0.104+/-0.0187+/-0.0476 0.0598 0.0839 0.133 0.0347 0.0254 0.0167 0.0186 0.0471 0.0501 0.0505 0.0305 0.0342 0.0191 0.0184 0.160 0.0347 0.0161 0.018+/-0.163+/-0.094+/-0.282+/-0.104+/-0.0484+/-0.0249+/-0.0209+/-0.0558+/-0.065+/-0.0995+/-0.0702+/-0.109+/-0.0222+/-0.0199+/-0.982+/-0.104+/-0.0187+/-0.0476 0.130 0.173 0.288 0.074 0.0538 0.0361 0.0414 0.0992 0.112 0.105 0.0633 0.072 0.041 0.0391 0.363 0.074 0.0342 0.0385 pCi/g pCi/g pCi/g pCi/g pCilg 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 10/11/06 1335 574337 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 09/29/06 1602 574169 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 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 East Hampton, Connecticut 06424 Report Date: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-020F Project: YANK01204 Sample ID: 172879013 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.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 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-01OF 172879014 TS 19-SEP-06 29-SEP-06 Client 13.9%Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MIDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.675 +/-0.128 Americium-241 U -0.118 +/-0.0795 Bismuth-212 0.519 +/-0.173 Bismuth-214 0.421 +/-0.071 Cesium-134 U 0.0313 +/-0.022 Cesium-137 0.0513 +/-0.0384 Cobalt-60 U 0.0162 +/-0.0266 Europium-152 U -0.0172 +/-0.0606 Europium-154 U 0.0504 +/-0.0443 Europium-155 U 0.087 +/-0.0697 Lead-212 0.594 +/-0.0528 Lead-214 0.495 +/-0.0642 Manganese-54 U 0.000893 +/-0.0192 Niobium-94 U -0.0186 +/-0.0161 Potassium-40 12.3 +/-0.813 Radium-226 0.421 +/-0.071 Silver-108m U 0.00313 +/-0.0169 Thallium-208 0.224 +/-0.0356 0.0562 0.0725 0.118 0.030 0.0212 0.0151 0.0197 0.0451 0.0567 0.0545 0.0285 0.0312 0.0166 0.0127 0.123 0.030 0.0147 0.0164+/-0.128+/-0.0795+/-0.173+/-0.071+/-0.022+/-0.0384+/-0.0266+/-0.0606+/-0.0443+/-0.0697+/-0.0528+/-0.0642+/-0.0192+/-0.0161+/-0.813+/-0.071+/-0.0169+/-0.0356 0.121 0.149 0.254 0.0638 0.0449 0.0323 0.0427 0.0943 0.123 0.112 0.0589 0.0655 0.0356 0.0274 0.281 0.0638 0.031 0.0348 pCi/g pCilg 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 10/11/06 1336 574337 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 09/29/06 1602 574169 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 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 Report Date: October 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-010F Project: YANK01204 Sample ID: 172879014 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.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 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-001F 172879015 TS 19-SEP-06 29-SEP-06 Client 20.2%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 0.692 +/-0.204 Americium-241 U 0.0166 +/-0.032 Bismuth-212 0.502 +/-0.277 Bismuth-214 0.516 +/-0.103 Cesium-134 UI 0.00 +/-0.0626 Cesium-137 U 0.0131 +/-0.0279 Cobalt-60 U 0.00492 +/-0.0283 Europium-152 U 0.0391 +/-0.0628 Europium-154 U -0.0141 +/-0.0847 Europium-155 U 0.0213 +/-0.0521 Lead-212 0.633 +/-0.0699 Lead-214 0.520 +/-0.0857 Manganese-54 U -0.0245 +/-0.0269 Niobium-94 U -0.027 +/-0.0223 Potassium-40 11.5 +/-0.917 Radium-226 0.516 +/-0.103 Silver-108m U 0.00845 +/-0.020 Thallium-208 0.207 +/-0.053 0.0744 0.0296 0.159 0.0373 0.0273 0.0221 0.0242 0.056 0.0707 0.046 0.0389 0.0383 0.021 0.0174 0.168 0.0373 0.0185 0.0214+/-0.204+/-0.032+/-0.277+/-0.103+/-0.0626+/-0.0279+/-0.0283+/-0.0628+/-0.0847+/-0.0521+/-0.0699+/-0.0857+/-0.0269+/-0.0223+/-0.917+/-0.103+/-0.020+/-0.053 0.159 0.0608 0.338 0.0789 0.0575 0.0468 0.0522 0.117 0.152 0.095 0.0799 0.0799 0.0447 0.0371 0.373 0.0789 0.0388 0.0452 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 10/11/06 1336 574337 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 09/29/06 1602 574169 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 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 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-00IF Project: YANK01204 Sample ID: 172879015 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.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 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:

Moisture: 9805-0000-001FS 172879016 TS 19-SEP-06 29-SEP-06 Client 26.8%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 0.802 +/-0.186 Americium-241 U -0.0082 +/-0.0284 Bismuth-212 0.622 +/-0.233 Bismuth-214 0.530 +/-0.105 Cesium-134 U 0.0439 +/-0.0252 Cesium-137 U 0.0148 +/-0.0215 Cobalt-60 U 0.00173 +/-0.0283 Europium-152 U 0.000274 +/-0.051 Europium-154 U -0.028 +/-0.0698 Europium-155 UT 0.00 +/-0.0539 Lead-212 0.710 +/-0.0581 Lead-214 0.584 +/-0.0833 Manganese-54 U 0.00129 +/-0.0232 Niobium-94 U -0.0123 +/-0.0188 Potassium-40 12.2 +/-1.01 Radium-226 0.530 +/-0.105 Silver-108m U -0.00463 +/-0.0169 Thallium-208 0.217 +/-0.0489 0.0656 0.0221 0.128 0.0328 0.0242 0.0193 0.0178 0.0426 0.0555 0.0335 0.0245 0.0315 0.0193 0.0148 0.148 0.0328 0.0146 0.018+/-0.186+/-0.0284+/-0.233+/-0.105+/-0.0252+/-0.0215+/-0.0283+/-0.051+/-0.0698+/-0.0539+/-0.0581+/-0.0833+/-0.0232+/-0.0188+/-1.01+/-0.105+/-0.0169+/-0.0489 0.142 0.0458 0.277 0.0701 0.0515 0.0412 0.0399 0.090 0.123 0.0699 0.0512 0.0665 0.0415 0.032 0.339 0.0701 0.0311 0.0384 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 10/11/06 1336 574337 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 09/29/06 1602 574169 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 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 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-OOIFS Project: YANK01204 Sample ID: 172879016 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.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 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-004F 172879017 TS 22-SEP-06 29-SEP-06 Client 17.2%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 0.668 +/-0.171 Americium-241 U 0.00666 +/-0.0316 Bismuth-212 0.397 +/-0.247 Bismuth-214 0.537 +/-0.0936 Cesium- 134 U 0.0309 +/-0.0272 Cesium-137 U 0.0268 +/-0.0329 Cobalt-60 U 0.00151 +/-0.0228 Europium-152 U 0.0542 +/-0.0576 Europium-154 U -0.0329 +/-0.0729 Europium-155 U 0.0641 +/-0.0785 Lead-212 0.710 +/-0.0588 Lead-214 0.514 +/-0.0902 Manganese-54 U 0.00638 +/-0.0263 Niobium-94 U 0.0167 +/-0.0216 Potassium-40 12.1 +/-0.943 Radium-226 0.537 +/-0.0936 Silver-108m U 0.00385 +/-0.0201 Thallium-208 0.236 +/-0.0527 0.0769 0.0305 0.164 0.0393 0.0255 0.0218 0.0196 0.0552 0.0587 0.0449 0.0266 0.0359 0.0226 0.0197 0.182 0.0393 0.0162 0.0204+/-0.171+/-0.0316+/-0.247+/-0.0936+/-0.0272+/-0.0329+/-0.0228+/-0.0576+/-0.0729+/-0.0785+/-0.0588+/-0.0902+/-0.0263+/-0.0216+/-0.943+/-0.0936+/-0.0201+/-0.0527 0.166 0.0628 0.351 0.0837 0.0544 0.0464 0.0437 0.116 0.130 0.0931 0.0555 0.0755 0.0485 0.042 0.411 0.0837 0.0344 0.0435 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 10/11/06 1337 574337 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 09/29/06 1602 574169 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 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-004F Proiect: YANK01204 Sample ID: 172879017 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.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 Contact: Project: East Hampton, Connecticut 06424 Mr. Jack McCarthy Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-004FS 172879018 TS 22-SEP-06 29-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 0.661 +/-0.167 Americium-241 U 0.00826 +/-0.0821 Bismuth-212 0.474 +/-0.289 Bismuth-214 0.470 +/-0.0825 Cesium-134 UI 0.00 +/-0.0294 Cesium-137 U 0.00926 +/-0.0219 Cobalt-60 U 0.0012 +/-0.0204 Europium-152 U -0.00386 +/-0.0614 Europium-154 U 0.058 +/-0.0721 Europium-155 U 0.060 +/-0.0558 Lead-212 0.744 +/-0.0838 Lead-214 0.503 +/-0.0831 Manganese-54 U -0.00841 +/-0.0191 Niobium-94 U -0.00327 +/-0.018 Potassium-40 12.2 +/-1.06 Radium-226 0.470 +/-0.0825 Silver-108m U 0.00155 +/-0.0164 Thallium-208 0.241 +/-0.0458 0.061 0.0677 0.135 0.0312 0.0212 0.0193 0.0174 0.045 0.0653 0.0527 0.0254 0.0346 0.0162 0.0151 0.150 0.0312 0.0146 0.0162+/-0.167+/-0.0821+/-0.289+/-0.0825+/-0.0294+/-0.0219+/-0.0204+/-0.0614+/-0.0721+/-0.0558+/-0.0838+/-0.0831+/-0.0191+/-0.018+/-1.06+/-0.0825+/-0.0164+/-0.0458 0.122 0.135 0.271 0.0623 0.0424 0.0386 0.0348 0.090 0.131 0.105 0.0508 0.0692 0.0325 0.0303 0.301 0.0623 0.0292 0.0324 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 10/11/06 1352 574337 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 09/29/06 1602 574169 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 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 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-004FS Project: YANKO 1204 Sample ID: 172879018 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.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 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-002F 172879019 TS 22-SEP-06 29-SEP-06 Client 19.4%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 1.01 +/-0.269 Americium-241 U 0.0107 +/-0.0408 Bismuth-212 U1 0.00 +/-0.520 Bismuth-214 0.692 +/-0.133 Cesium-134 UI 0.00 +/-0.0574 Cesium-137 U 0.0164 +/-0.0289 Cobalt-60 U -0.00935 +/-0.0298 Europium-152 U -0.0633 +/-0.116 Europium-154 U -0.0142 +/-0.0988 Europium-155 U 0.0744 +/-0.0684 Lead-212 0.845 +/-0.0997 Lead-214 0.747 +/-0.134 Manganese-54 U 0.00497 +/-0.0305 Niobium-94 U 0.0118 +/-0.0263 Potassium-40 13.7 +/-1.19 Radium-226 0.692 +/-0.133 Silver-108m U -0.00492 +/-0.0233 Thallium-208 0.281 +/-0.055 0.0821 0.0331 0.191 0.0435 0.0329 0.0265 0.0238 0.054 0.0816 0.0524 0.0321 0.0402 0.0268 0.0238 0.206 0.0435 0.020 0.0235+/-0.269+/-0.0408+/-0.520+/-0.133+/-0.0574+/-0.0289+/-0.0298+/-0.116+/-0.0988+/-0.0684+/-0.0997+/-0.134+/-0.0305+/-0.0263+/-1.19+/-0.133+/-0.0233+/-0.055 0.164 0.0661 0.382 0.0869 0.0658 0.0529 0.0476 0.108 0.163 0.105 0.0642 0.0803 0.0536 0.0476 0.412 0.0869 0.040 0.0471 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 10/11/06 1353 574337 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 09/29/06 1602 574169 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 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-002F Proiect: YANK01204 Sample ID: 172879019 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.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 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-003F 172879020 TS 22-SEP-06 29-SEP-06 Client 11.6%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 0.688 U -0.044 0.781 0.569 UI 0.00 0.0883 U 0.0184 U -0.0081 U 0.0687 U 0.0446 0.734 0.626 U 0.020 U 0.00615 11.9 0.569 U 0.00657 0.223+/-0.157+/-0.0512+/-0.239+/-0.0879+/-0.0266+/-0.0237+/-0.032+/-0.0415'

+/-0.0855+/-0.0438+/-0.0753+/-0.0908+/-0.0166+/-0.0143+/-1.05+/-0.0879.

+/-0.0146+/-0.0352 0.0551 0.0445 0.105 0.0273 0.0183 0.0147 0.0142 0.0359 0.0471 0.040 0.0207 0.0275 0.0157 0.0129 0.135 0.0273 0.0129 0.0148+/-0.157+/-0.0512+/-0.239+/-0.0879+/-0.0266+/-0.0237+/-0.032+/-0.0415+/-0.0855+/-0.0438+/-0.0753+/-0.0908+/-0.0166+/-0.0143+/-1.05+/-0.0879+/-0.0146+/-0.0352 0.118 0.0921 0.225 0.0579 0.039 0.0313 0.0314 0.0755 0.102 0.0827 0.0432 0.0577 0.0334 0.0276 0.300 0.0579 0.0272 0.0314 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 10/11/06 1649 574337 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 09/29/06 1602 574169 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 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 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-003F Project: YANK01204 Sample ID: 172879020 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.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 Report Date: October 18, 2006 Project: Soils PO# 002332 Client Sample ID: 9805-0000-012F Project: YANK01204 Sample ID: 172879021 Client ID: YANK00I Matrix: TS Vol. Recv.: Collect Date: 22-SEP-06 Receive Date: 29-SEP-06 Collector:

Client Moisture:

17.3%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 0.524 +/-0.120 Americium-241 U -0.0192 +/-0.0546 Bismuth-212 0.373 +/-0.203 Bismuth-214 0.370 +/-0.0507 Cesium- 134 U 0.0307 +/-0.024 Cesium-137 U 0.0104 +/-0.0309 Cobalt-60 U -0.00272 +/-0.0167 Europium-152 U 0.00769 +/-0.0367 Europium-154 U -0.0169 +/-0.0441 Europium-155 U 0.0194 +/-0.0407 Lead-212 0.520 +/-0.0418 Lead-214 0.466 +/-0.0573 Manganese-54 U -0.00134 +/-0.0134 Niobium-94 U 0.000852 +/-0.0121 Potassium-40 11.6 +/-0.634 Radium-226 0.370 +/-0.0507 Silver-108m U 0.000312 +/-0.0114 Thallium-208 0.159 +/-0.0291 0.0374 0.046 0.0837 0.021 0.0147 0.0122 0.0117 0.0296 0.0357 0.0381 0.0182 0.0216 0.0117 0.0108 0.0975 0.021 0.0101 0.0103+/-0.120+/-0.0546+/-0.203+/-0.0507+/-0.024+/-0.0309+/-0.0167+/-0.0367+/-0.0441+/-0.0407+/-0.0418+/-0.0573+/-0.0134+/-0.0121+/-0.634+/-0.0507+/-0.0114+/-0.0291 0.080 0.095 0.178 0.0442 0.0309 0.0258 0.0254 0.0619 0.0766 0.0787 0.0377 0.0451 0.0247 0.0228 0.214 0.0442 0.0212 0.0218 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 0521 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 09/29/06 1602 574169 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 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-012F Project: YANK01204 Sample ID: 172879021 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.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 Contact: Project: East Hampton, Connecticut 06424 Mr. Jack McCarthy Soils PO# 002332 Report Date: October 18, 2006 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector:

Moisture: 9805-0000-007F 172879022 TS 22-SEP-06 29-SEP-06 Client 18.2%Proiect: 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 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 0.691 U -0.014 0.664 0.474 U 0.024 U -0.00424 U 0.00516 U -0.0196 U 0.0129 U 0.0461 0.568 0.466 U 0.00691 U -0.00744 11.8 0.474 U -0.0184 0.193+/-0.164+/-0.117+/-0.222+/-0.0733+/-0.0284+/-0.0197+/-0.0167+/-0.049+/-0.0552+/-0.0501+/-0.0534+/-0.0687+/-0.0181+/-0.0158+/-0.870+/-0.0733+/-0.0144+/-0.0384 0.0461 0.095 0.110 0.0258 0.0201 0.0145 0.0148 0.041 0.0484 0.0494 0.024 0.0298 0.0159 0.0131 0.148 0.0258 0.0118 0.0146+/-0.164+/-0.117+/-0.222+/-0.0733+/-0.0284+/-0.0197+/-0.0167+/-0.049+/-0.0552+/-0.0501+/-0.0534+/-0.0687+/-0.0181+/-0.0158+/-0.870+/-0.0733+/-0.0144+/-0.0384 0.101 0.197 0.237 0.0554 0.0428 0.0313 0.0332 0.0862 0.106 0.102 0.050 0.0628 0.0342 0.0281 0.332 0.0554 0.0253 0.0313 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 0612 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 09/29/06 1602 574169 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 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 18, 2006 Contact: Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9805-0000-007F Project: YANK01204 Sample ID: 172879022 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.81

.I QUALITY CONTROL DATA 82 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 12 East Hampton, Connecticut Contact: Mr. Jack McCarthy Workorder:

172879 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Alpha Spec Batch 574558 QC1201197067 172879001 DUP Plutonium-241 QC1201197069 LCS Plutonium-241 QC1201197066 MB Plutonium-241 QC1201197068 172879001 MS Plutonium-241 U 2.68 Uncert: +/-7.20 TPU: +/-7.20 U 3.67+/-9.16+/-9.17 pCi/g 0 (0%- 100%) JASI 123 Uncert: TPU: Uncert: TPU: 144 U Uncert: TPU: 107+/-12.0+/-18.6 U 3.56+/-7.43+/-7.44 pCi/g pCi/g pCilg 87 (75%-125%)

10/10/06 17:36 10/10/06 18:09 10/10/06 17:20 10/10/06 17:53 2.68+/-7.20+/-7.20 127+/-16.3+/-23.9 89 (75%-125%)

Batch 578044 QC1201204516 Americium-241 Curium-242 Curium-243/244 QC1201204518 Americium-241 Curium-242 Curium-243/244 QC1201204515 Americium-241 172879001 DUP U -0.0902 Uncert: +/-0.120 TPU: +/-0.121 U -0.143 Uncert: +/-0.0702 TPU: +/-0.0724 U -0.0746 Uncert: +/-0.172 TPU: +/-0.173 LCS 12.3 Uncert: TPU: Uncert: TPU: 14.8 Uncert: TPU: Uncert: TPU: Uncert: TPU: U -0.0331+/-0.101+/-0.101 U -0.00812+/-0.0159+/-0.0159 U -0.163+/-0.178+/-0.179 13.0+/-1.24+/-2.01 U 0.00+/-0.0599+/-0.0599 16.6+/-1.40+/-2.46 U 0.00339+/-0.118+/-0.118 U 0.00+/-0.0711+/-0.0711 pCi/g 93 pCi/g 179 pCi/g 74 pCi/g (0%- 100%) JASI 10/12/06 16:17 (0%- 100%)(0%- 100%)106 (75%-125%)

pCi/g pCi/g pCi/g pCi/g 112 (75%-125%)

MB Curium-242 83 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172879 Page 2 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Alpha Spec Batch 578044 Curium-243/244 Uncert: TPU: U -0.164+/-0.0739+/-0.0767 QC1201204517 172879001 MS Americium-241 Curium-242 Curium-243/244 Batch 578046 QC1201204520 172879001 DUP Plutonium-238 Plutonium-239/240 QC1201204522 LCS Plutonium-238 Plutonium-239/240 13.5 U -0.0902 Uncert: +/-0.120 TPU: +/-0.121 U -0.143 Uncert: +/-0.0702 TPU: +/-0.0724 16.3 U -0.0746 Uncert: +/-0.172 TPU: +/-0.173 u -0.0161 Uncert: +/-0.127 TPU: +/-0.127 U 0.047 Uncert: +/-0.135 TPU: +/-0.135 Uncert: TPU: 11.4 Uncert: TPU: U 12.8+/-1.31+/-2.05-0.0368+/-0.0361+/-0.0364 17.7+/-1.55+/-2.68 pCi/g pCi/g pCi/g PCi/g 109 (75%-125%)

95 (75%-125%)

U 0.0223+/-0.150+/-0.150 U 0.00278+/-0.107+/-0.107 U 0.0311+/-0.128+/-0.128 10.3+/-1.03+/-1.46 U -0.0384+/-0.0799+/-0.080 U -0.0317+/-0.0719+/-0.0719 pCi/g 1240 pCi/g 178 pCi/g pCi/g (0%- 100%) JAS1 10/12/06 12:04 (0% -100%)(75%-125%)

90 (75%-125%)

QC1201204519 MB Plutonium-238 Plutonium-239/240 QC1201204521 172879001 MS Plutonium-238 Uncert: TPU: Uncert: TPU: pCi/g pCi/g pCi/g pCi/g U -0.0161 Uncert: +/-0.127 TPU: +/-0.127 12.5 U 0.047 Uncert: +/-0.135 TPU: +/-0.135 U-0.0462+/-0.0811+/-0.0813 11.6+/-1.21+/-1.71 (75%-125%)

Plutonium-239/240 Rad Gamma Spec Batch 574336 93 (75%-125%)

QC1201196540 172275028 DUP Actinium-228 0.575 Uncert: +/-0.137 TPU: +/-0.137 0.630+/-0.144+/-0.144 pCi/g 9 (0% -100%) MJH1 10/03/06 06:14 84 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172879 Page 3 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 574336 Americium-241 Bismuth-212 Bismuth-214 Cesium- 134 Cesium- 137 Cobalt-60 Europium-152 Europium-154 Europium-155 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 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 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+/-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 pCi/g 24 pCilg 12 pCi/g 12 pCilg 72 pCi/g 198*pCi/g 185 pCi/g 96 pCilg 341 (0% -100%)(0%- 100%)(0% -100%)(0% -100%)(0%-20%)(0%- 100%)(0%- 100%)(0%- 100%)(0%- 100%)(0% -20%)(0% -20%)(0%- 100%)(0%- 100%)(0%- 20%)(0% -100%)(0%- 100%)pCi/g 12 Lead-212 Lead-214 Manganese-54 Niobium-94 Potassium-40 Radium-226 Silver- 108m pCi/g 23*pCi/g 17 pCi/g 52 pCi/g 293 pCi/g 30*pCi/g 12 pCi/g 483 85 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172879 Page 4 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 574336 Thallium-208 0.186 Uncert: +/-0.0436 TPU: +/-0.0436 0.254+/-0.0405+/-0.0405 pCi/g 31 (0%- 100%)QC1201196541 Actinium-228 Americium-241 Bismuth-212 LCS 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: 14.3 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: 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 U -0.00861+/-0.305+/-0.305 U 0.382+/-0.275+/-0.275 U -0.0392+/-0.332+/-0.332 U -0.11+/-0.163+/-0.163 U 0.185+/-0.234+/-0.234 U -0.00693+/-0.128+/-0.128 U -0.0972+/-0.118+/-0.118 U 0.676+/-1.06 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 106 (75%-125%)

102 (75%-125%)

109 (75%-125%)

10/03/06 07:26 Lead-212 Lead-214 Manganese-54 Niobium-94.

Potassium-40 86 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172879 Page 5 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst Date Time Rad Gamma Spec Batch 574336 TPU: Radium-226 Silver- 108m Thallium-208 QC1201196539 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:+/-1.06 U 0.0129+/-0.236+/-0.236 U -0.0142+/-0.119+/-0.119 U 0.100+/-0.123+/-0.123 U 0.0435+/-0.091+/-0.091 U -0.0204+/-0.055+/-0.055 U -0.00499+/-0.109+/-0.109 U 0.0577+/-0.031+/-0.031 U 0.00937+/-0.0158+/-0.0158 U -0.00291+/-0.0137+/-0.0137 U 0.000491+/-0.0155+/-0.0155 U -0.00472+/-0.0376+/-0.0376 U 0.00671+/-0.0299+/-0.0299 U 0.0139+/-0.0336+/-0.0336 U 0.0167+/-0.0287+/-0.0287 U 0.0536+/-0.0433+/-0.0433 U -0.00217 pCi/g pCi/g pCi/g pCi/g 10/03/06 06:13 Cobalt-60 (75%-125%)

pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g Europium-152 Europium-154 Europium-155 Lead-212 Lead-214 Manganese-54 87 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com Workorder:

172879 Parmname QC Summary Page 6 of 12 NOM Samnle Oual OC Units RPD%REC %8 Range Anlst Date Time Rad Gamma Spec Batch 574336 Niobium-94 Potassium-40 Radium-226 Silver- 108m Thallium-208 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Batch 574337 QCI1201196543 Actinium-228 Americium-241 Bismuth-212 Bismuth-214 Cesium- 134 Cesium- 137 Cobalt-60 Europium-152 Europium-154 Europium-155 172879001 DUP 0.897 Uncert: +/-0.244 TPU: +/-0.244 u 0.0267 Uncert: +/-0.0306 TPU: +/-0.0306 0.812 Uncert: +/-0.347 TPU: +/-0.347 0.605 Uncert: +/-0.0985 TPU: +/-0.0985 U 0.0441 Uncert: +/-0.0379 TPU: +/-0.0379 0.0628 Uncert: +/-0.0298 TPU: +/-0.0298 U 0.00292 Uncert: +/-0.0266 TPU: +/-0.0266 U 0.0115 Uncert: +/-0.0583 TPU: +/-0.0583 U -0.0674 Uncert: +/-0.0873 TPU: +/-0.0873 U 0.0406 Uncert: +/-0.0597+/-0.0116+/-0.0116 U 0.0106+/-0.0136+/-0.0136 U 0.0767+/-0.436+/-0.436 U 0.0577+/-0.031+/-0.031 U 0.0117+/-0.0122+/-0.0122 U 0.0111+/-0.0142+/-0.0142 0.839+/-0.207+/-0.207 U 5.420E-05+/-0.092+/-0.092 0.486+/-0.281+/-0.281 0.649+/-0.0929+/-0.0929 UI 0.00+/-0.0381+/-0.0381 UI 0.00+/-0.039+/-0.039 U 0.0132+/-0.0239+/-0.0239 U 0.000515+/-0.056+/-0.056 U 0.00465+/-0.0696+/-0.0696 U 0.0599+/-0.0865 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g 7 pCi/g 199 pCi/g 50 pCi/g 7 pCi/g 41 pCi/g 24 pCi/g 128 pCi/g 183 pCi/g 230 pCi/g 38 (0%- 100%) MJH1 10/11/06 15:17 (0% -100%)(0%- 100%)(0%- 100%)(0% -100%)(0%- 100%)(0%- 100%)(0%0- 100%)(0%- 100%)(0%- 100%)88 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172879 Page 7 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Gamma Spec Batch 574337 Lead-212 Lead-214 Manganese-54 Niobium-94 Potassium-40 Radium-226 Silver- 108m Thallium-208 QC 1201196544 Actinium-228 Americium-241 TPU: +/-0.0597 0.941 Uncert: +/-0.0704 TPU: +/-0.0704 0.743 Uncert: +/-0.0907 TPU: +/-0.0907 U 0.00738 Uncert: +/-0.0274 TPU: +/-0.0274 U -0.000653 Uncert: +/-0.0237 TPU: +/-0.0237 14.8 Uncert: +/-1.20 TPU: +/-1.20 0.605 Uncert: +/-0.0985 TPU: +/-0.0985 U -0.0179 Uncert: +/-0.0198 TPU: +/-0.0198 0.323 Uncert: +/-0.0621 TPU: +/-0.0621+/-0.0865 0.923+/-0.0674+/-0.0674 0.748+/-0.0972+/-0.0972 U 0.000202+/-0.0231+/-0.0231 U 0.00339+/-0.0196+/-0.0196 14.4+/-0.996+/-0.996 0.649+/-0.0929+/-0.0929 U 0.000414+/-0.0166+/-0.0166 0.274+/-0.045+/-0.045 U -0.273+/-0.555+/-0.555 23.7+/-1.16+/-1.16 U -0.102+/-0.906+/-0.906 U 0.230+/-0.209+/-0.209 U 0.023+/-0.145+/-0.145 10.3+/-0.499+/-0.499 14.9+/-0.654+/-0.654 U 0.0647 pCi/g 2 pCi/g 1 pCi/g 189 pCi/g 296 pCi/g 3 pCi/g 7 pCi/g 209 pCi/g 17 (0% -20%)(0% -20%)(0%- 100%)(0%- 100%)(0%-20%)(0%- 100%)(0%- 100%)(0%- 100%)LCS Bismuth-212 Bismuth-214 Cesium- 134 Cesium- 137 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 pCilg pCi/g pCi/g pCi/g pCilg 102 (75%-125%)

10/11/06 15:18 107 (75%-125%)

104 (75%-125%)

Cobalt-60 Europium-152 89 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172879 Page 8 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 574337 Europium-154 Europium-155 Lead-212 Lead-214 Manganese-54 Niobium-94 Potassium-40 Radium-226 Silver- 108m Thallium-208 QC1201196542 Actinium-228 Americium-241 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU:+/-0.293+/-0.293 U -0.11+/-0.241+/-0.241 U 0.0455+/-0.295+/-0.295 U 0.0606+/-0.152+/-0.152 U 0.0941+/-0.213+/-0.213 U -0.099+1-0.131+/-0.131 U -0.0874+/-0.112+/-0.112 U 0.473+/- 1.01+/-1.01 U 0.230+/-0.209+/-0.209 U 0.0591+/-0.101+/-0.101 U 0.0619+/-0.117+/-0.117 U 0.0106+/-0.0479+/-0.0479 U 0.0265+/-0.0588+/-0.0588 U 0.00203+/-0.0709+/-0.0709 U 0.0367+/-0.0235+/-0.0235 U 0.00883+/-0.00962

+/-0.00962 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g (75%-1 25%)MB 10/11/06 16:50 Bismuth-212 Bismuth-214 Cesium- 134 90 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172879 Page 9 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gamma Spec Batch 574337 Cesium- 137 U 0.00431 pCi/g Uncert: +/-0.00913 TPU: +/-0.00913 Cobalt-60 U 0.000774 pCi/g Uncert: +/-0.00909 TPU: +/-0.00909 Europium-152 U -0.0167 pCi/g Uncert: +/-0.0221 TPU: +/-0.0221 Europium-154 U 0.00683 pCi/g Uncert: +/-0.0223 TPU: +/-0.0223 Europium-155 U -0.00959 pCi/g Uncert: +/-0.0268 TPU: +/-0.0268 Lead-212 UI 0.00 pCi/g Uncert: +/-0.0167 TPU: +/-0.0167 Lead-214 U 0.0246 pCi/g Uncert: +/-0.019 TPU: +/-0.019 Manganese-54 U .0.00784 pCi/g Uncert: +/-0.0106 TPU: +/-0.0106 Niobium-94 U 0.00214 pCi/g Uncert: +/-0.009 TPU: +/-0.009 Potassium-40 U 0.134 pCi/g Uncert: +/-0.210 TPU: +/-0.210 Radium-226 U 0.0367 pCi/g Uncert: +/-0.0235 TPU: +/-0.0235 Silver-108m U 0.00185 pCi/g Uncert: +/-0.00804 TPU: +/-0.00804 Thallium-208 U 0.00852 pCi/g Uncert: +/-0.0165 TPU: +/-0.0165 Rad Gas Flow Batch 574221 QC1201196232 172875011 DUP Strontium-90 U -0.0251 U 0.0221 pCi/g 0 (0% -100%) KSDI 10/04/06 23:26 Uncert: +/-0.0121

+/-0.0157 TPU: +/-0.0121

+/-0.0157 QC1201196234 LCS Strontium-90 1.74 1.83 pCi/g 105 (75%-125%)

10/04/06 23:26 Uncert: +/-0.121 91 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172879 Page 10 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range AnIst Date Time Rad Gas Flow Batch 574221 TPU:+/-0.133 QC1201196231 MB Strontium-90 QC1201196233 172875011 MS Strontium-90 Rad Liquid Scintillation Batch 574010 QC1201195649 172879001 DUP Technetium-99 QC1201195651 LCS Technetium-99 QCI201195648 MB Technetium-99 QC1201195650 172879001 MS Technetium-99 Uncert: TPU: U 0.0207+/-0.0142+/-0.0142 pCilg pCi/g 10/04/06 23:26 10/04/06 23:26 3.72 U Uncert: TPU:-0.0251+/-0.0121+/-0.0121 3.25+/-0.225+/-0.244 87 (75%-125%)

U -0.0681 Uncert: +/-0.263 TPU: +/-0.263 U 0.099+/-0.279+/-0.279 12.2+/-0.488+/-0.562 pCi/g 0 (0% -100%) KXR1 13.0 Uncert: TPU: Uncert: TPU: 13.0 U Uncert: TPU: U 0.0765+/-0.239+/-0.239 pCi/g pCi/g pCi/g 94 (75%-125%)

10/09/06 09:12 10/09/06 09:44 10/09/06 08:55 10/09/06 09:28-0.0681+/-0.263+/-0.263 Batch 574014 12.3+/-0.562+/-0.629-0.0777+/-0.0723+/-0.0723 95 (75%-125%)

QC1201195658 Carbon-14 172875001 DUP QC1201195660 LCS Carbon- 14 QC1201195657 MB Carbon- 14 U -0.018 Uncert: +/-0.0708 TPU: +/-0.0708 6.74 Uncert: TPU: U pCi/g 0 (0% -100%) %XD2 7.75+/-0.496+/-0.510 U -0.0593+/-0.067+/-0.067 pCi/g pCi/g pCi/g 115 (75%-125%)

10/04/06 00:15 10/04/06 01:35 10/03/06 23:12 10/04/06 01:17 Uncert: TPU: QC1201195659 172875001 MS Carbon-14 7.18 U Uncert: TPU:-0.018+/-0.0708+/-0.0708 Batch 574527 7.99+/-0.510+/-0.525-0.127+/-39.5+/-39.5 111 (75%-125%)

QC1201196976 172875001 DUP Iron-55 U 1.82 Uncert: +/-42.6 TPU: +/-42.6 U pCi/g 0 (0% -100%) MXPI 10/04/06 21:11 92 GENERAL ENGINEERING LABORATORIES, LLC 2040 Savage Road Charleston SC 29407 -(843) 556-8171 -www.gel.com QC Summary Workorder:

172879 Page 11 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range Anist Date Time Rad Liquid Scintillation Batch 574527 QC1201196978 LCS Iron-55 QC1201196975 MB Iron-55 QC1201196977 172875001 MS lron-55 Batch 574530 QC1201196984 Nickel-63 172879007 DUP 631 Uncert: TPU: Uncert: TPU: 663 U Uncert: TPU: U Uncert: TPU: 500 Uncert: TPU: Uncert: TPU: 556 U Uncert: TPU: 629+/-58.3+/-76.2 1.82+/-42.6+/-42.6 636+/-59.5+/-74.9 U 20.6+/-32.0+/-32.0 pCilg pCilg pCi/g 100 (75%-125%)

96 (75%-125%)

10/04/06 21:43 10/04/06 20:54 10/04/06 21:27 9.42+/-6.03+/-6.04 10.2+/-6.13+/-6.14 pCi/g 8 (0% -100%) vIXP1 QC1201196986 LCS Nickel-63 QC1201196983 MB Nickel-63 QC1201196985 172879007 MS Nickel-63 469+/-15.9+/-21.7 U 6.26+/-7.08+/-7.08 pCi/g pCi/g pCi/g 94 (75%-125%)

95 (75%-125%)

10/06/06 12:07 10/06/06 13:10 10/06/06 11:35 10/06/06 12:38 9.42+/-6.03+/-6.04 Batch 579033 QC1201206810 172879001 DUP Tritium QC1201206812 LCS Tritium QC1201206809 MB Tritium QC1201206811 172879001 MS Tritium U -3.35 Uncert: +/-6.99 TPU: +/-6.99 U 528+/-17.4+/-24.7 0.248+/-6.67+/-6.67 72.3+/-12.3+/-12.3 pCi/g 0 (0% -100%) IXPI 67.6 Uncert: TPU: Uncert: TPU: 58.5 U Uncert: TPU: U 1.63+/-8.10+/-8.10 pCi/g pCi/g pCi/g 107 (75%-125%)

10/16/06 19:40 10/16/06 20:12 10/16/06 19:23 10/16/06 19:56-3.35+/-6.99+/-6.99 51.6+/-10.2+/-10.3 88 (75%-125%)

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

172879 Page 12 of 12 Parmname NOM Sample Qual QC Units RPD% REC% Range Anlst 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.94 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD ATTACHMENT 3 (DQA RESULTS)

SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD ATTACHMENT 3A (PRELIMINARY DATA REVIEW)

Health Physics Procedure GPP-GGGR-R5121-001 Attachment B, Rev. CY-00I MAJOR Preliminary Data Review Form -Samples for the Sign Test Survey Unit: Survey Unit Name: Classification:

Survey Media: Type of Survey: Type of Measurement:

Number of Measurements:

Operational DCGL (pCi/g)9805- (0000-, PENINSULA SUBSURFACE C Soil Final Status Survey Gross Measurement 15 5.3'8E+00 BASIC STATISTICAL QUANTITIES Cs-137 Minimum Value: -4.24E-03 Maximum Value: 8.83E-02" Mean: Median: 1.60E-02 Standard Deviation:

2.74E-02 Skew: 1.172 ,_RADIONUCLIDE CONCENTRATION (pCi/g)NUMBER Cs-137 Cs Identified?

9805-0000-00IF 1.31 E-02 NO 9805-0000-002F 1.64E-02 ._NO 9805-0000-003F 8.83E:02 YES 9805-0000-004F

.2.68E-02

......_,_NO _ _ _9805-0000-005F 2.11 E.O2. _ _ ____NO .... _.....9805-0000-006F

.... 1OE-03 ' ____._. NO GI __"- _" ______9805-0000-007F

__ .-4.24E-03

_ __ :" NO " ________ ._.....9805-0000-Q0 8F 6.28E-02 ____'____YES

___......

_ ...._.9805-0000-009F , .47El Q2 E______"__

NO ___ -___ ........9805-0000-010F " 5.13E-02 .YES .9805-0000-011F , 1.60E-02 NO --9805-0000-012F

_ _104E-02 ' NO 9805-0000-013F 1.71E-03 NO ....9805-0000-014F

.1 11E-02 _ _ _NO .9805-0000-015F 6.93E-02 YES 1jv /ýPerformed By: Independent Review: Date: 5-6.3 Date: /0 (10 Hfalth Physics Procfdurf 24265-000-GPP-GGGR-R5123-000-Rev.CY-OOC Hfalth Physics Procfdurf 24265-000-GPP-GGGR-R5 I 23-000-Rev.CY-00C Preliminary Data Review Form -Judgemental Samples Survey Unit: Survey Unit Name: 9805- 0000 PENINSULA SUBSURFACE Classification:

C Survey Media: Soil Type oe Survey: Final Status Survey Type oe Measurement:

Gross Measurement Number of Measurements:

Operational DCGL (pCi/g) [j _ __5_ _ _ _ _ _ _ _BASIC STATISTICAL QUANTITIES Cs-137 Minimum Value: -4.79E-03 Maximum Value: ,3.42E-02 Mean: 1 28E,-02 Median: 2.57E-02 Standard Deviation:

1.79E-02 Operational DCGL RADIONUCLIDE CONCENTRATION (pCi/g)NUMBER Cs-137 20 Cs ID'ed? > DCGL 9805-0000-016F 0.,OE+00 4.2QE7-02 NO , _ __ NO 9805-0000-017F 3.42E-02 2.12E-02 YES '_"_ NO 9805-0000-01 8F 2.57E-02 2.49E-o2 ...... YES _1____ .NO 9805-0000-019F 4.79E-03' 1.42E-02 ".NO NO 9805-0000-020F 2.891E-02 2.49E-02 ____... ... YES _ _, NO Performed By: Date: 1 41/ , -(Date: ii/ 0(o0/(O Independent Review:

SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD ATTACHMENT 3B (GRAPHICAL REPRESENTATION OF DATA)

Health Physics Procedure GGGR-R5123-Rev.CY-001 Attachment C Health Physics Procedure GGGR-R5 1 23-Rev.CY-0O 1 Attachment C Quantile Plot For Cesium -137 Survey Unit: 9805-0000 Survey Unit Name: PENINSULA SUBSURFACE Mean: 2.72E-02 pCi/g 1.OOE-018.OOE-02 6.OOE-02--

4.OOE-02 2.OOE-02 -0 Q 0.OOE+O0-2.OOE-02 20 Percentage Cs-137 Rank Percentage

-4.24E-03 1 3 %1.71E-03 2 10%9.1OE-03 3 17 %1.04E-02 4 23 %1.1IE-02 5 30 %1.31E-02 6 37 %1.47-02 7 43%1.60E-02 8 50 %1.64E-02 9 57 %2.1IE-02 10 63%2.68E-02 11 70%5.13E-02 12 77 %6.28E-02 13 83 %6.93E-02 14 90 %8.83E-02 15 97%/ýj'-Prepared By: Reviewed By:'Date: / /-!S---O (Date: lI I'( 1 o (0 Health Physics Procedure GGGR-R5123-Rev.CY-001 Attachment C Survey Unit: Survey Unit Name: Mean: Frequency Plot For Cesium-137 9805-0000 PENINSULA SUBSURFACE 0.027 pCi/g 10 8-6--S4--L..u. 2 0 0.000 0.020 0.040 0.060 0.080 0.100 Upper End Value (pCi/g)Upper End Observation Observation

%Value Frequency Frequency 0.000 1 7%0.020 2 13%0.040 8 53%0.060 1 7%0.080 2 13%0.100 1 7%Total 15 100%1K ~ A Prepared By: Date: /"/ -//.f--)-Date: 111¢,00 Reviewed SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD ATTACHMENT 3C (SIGN TEST)

Health Physics Procedure GPP-GGGR-R5]2 1 -000 Attachment A, Rev. CY-00 I MAJOR Sign Test Calculation Sheet For Single Radionuclide Survey Unit Number: 9805-0000 Survey Unit Name: PENINSULA SUBSURFACE WP&IR#: 2006-0007 Classification

C TYPE I (c error):0.05 I TYPE I (P error):0.05 Radionuclide:

Operational DCGL (pCi/g): Cs-137 5.38 Results Cs-137 1.31E-02 1 .64E-02 8.83E-02:?;

2.68E-02 2.14I-E-02 9.106E-03-4.24E-03 6.28E-02 1.47,E-02 5.13E-02 1.60E-02 1 .0ZlE-02 1.71&E03 1.l1 E-702 6.93E-02 DCGL-Result 5.37E+00 5.36E+00 5.29E+00 5.3 5E+00 5.36E+00 5.37E+00 5.38E+00 5.32E+00 5.37E+00 5.33E+00 5.36E+00 5.37E+00 5;38E+00 5.37E+00 5.3 4E+00 Sign Number of Positive Differences (S+): 15 Critical Value: 11 Survey Unit: Meets Acceptance Criterion Performed By: Independent Review: L Date: Date.,--,i 1 SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD ATTACHMENT 3D (QC SPLIT RESULTS)

Connecticut Yankee Decommissioning Project Health Physics Procedure 24265-000-GPR-GGGR-R5124-000 Attachment A Split Sample Assessment Form Survey Area Survey 0 Survey PE....ULA SUBSURFAC 98050000PENINSULA:

SUBSURFACE:

1. 9 Unit #: Unit Name: Sample Plan or WPIR#: 2006-0007 SML #:; 9805-0000-00IFS Sample

Description:

Comparison of split samples collected from sample measurement location #01 and analyzec using gamma spectroscopy by an off-site vendor laboratory.

The standard sample was 9805-0000-00IF the comparison sample was 9805-0000-001FS.

STAN DARD COMPARI SON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable (Y/N)Value Error Range Value Error Ratio Cs-137 1.31E-02 1.40E-02 1 NONE .1.48E-02 1.08E-02' 1.13 N/A Ký4 ...,I5E+0I ..:,4,59E-01

..25 0.75 1.33 I.22E+01 5.05E-01 1.06 Y Comments/Corrective Actions: Cs-137 is reported at levels Table is provided to show acceptance criteria used approaching or below detection limits. A small variance in the to assess split samples.reported activity for the samples could result in a low resolution and a corresponding unsatisfactory comparison ratio. Guidance Resolution Agreement Range for sample agreement was developed from USNRC Inspection 4 7 0.50 2.00 Procedure 84750 which does not provide agreement ranges for 8 15 0.60 1.66 resolutions less than 4. Therefore, a statement of acceptability 16 50 0.75 1.33 in such cases is not appropriate.

However, K-40 was found to be 51 200 0.80 1.25 Dresent at an acceptable level of agreement.

Therefore, no further action is warranted.

>200 0.85 1.18 Per By: Date: Reviewed By: Date: WPIR -Work Plad'jnd Inspection Record SML -Sample Measurement Location designation 111ýj Page I of I Connecticut Yankee Decommissioning Project Health Physics Procedure 24265-000-GPR-GGGR-R5124-000 Attachment A Split Sample Assessment Form Survey 9805 Survey 0 Survey Unit ...... SUBSURFACE Area#: , Unit #: 0000 Name: PENNSULA Sample Plan or WPIR#: 2006-0007 SML #: 9805-0000-004FS Sample

Description:

Comparison of split samples collected from sample measurement location #04 and analyzed using gamma spectroscopy by an off-site vendor laboratory.

The standard sample was 9805-0000-004F, the comparison sample was 9805-0000-004FS.

STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable (Y/N)Value Error Range Value Error Ratio Cs-137 2.68E-02~

1.65E-02 2 NONE -9.26E-03 1.1OE-02 0.35 N/A K-40 1*Z.2lE+/-01 4.72E-01 26 0.7 -1.33, 1.22E+/-OI 5.30E-01 1.01 Y Comments/Corrective Actions: Cs-137 is reported at levels Table is provided to show acceptance criteria used approaching or below detection limits. A small variance in the to assess split samples.reported activity for the samples could result in a low resolution and a corresponding unsatisfactory comparison ratio. Guidance Resolution Agreement Range for sample agreement was developed from USNRC Inspection 4 7 0.50 2.00 Procedure 84750 which does not provide agreement ranges for 8 15 0.60 1.66 resolutions less than 4. Therefore, a statement of acceptability 16 50 0.75 1.33 in such cases is not appropriate.

However, K-40 was found to be 51 200 0.80 1.25 present at an acceptable revel of agreement.

Therefore, no further action is warranted.

>200 0.85 1.18 Performed By: Date: Reviewed By: Date:/ ,<-' 7-/S C-)O W1PIR -Work Plan a~d ispection Record SML -Sample Measurement Location designation

ýýJ Page I of I SUBSURFACE AREA ASSOCIATED WITH THE PENINSULA (SURVEY UNIT 9805-0000)

RELEASE RECORD ATTACHMENT 3E (COMPASS DQA WITH POWER CURVE)

Surface Soil Survey Plan Survey Plan Summary Site: Planner(s):

Survey Unit Name: Comments: Area (M 2): Selected Test: DCGL (pCi/g): LBGR (pCi/g): Alpha: Beta: subsurface 9805 (Peninsula) rwm Peninsula Subsurface Soil (9805-0000)

Class C Subsurface Survey Unit 130,380 Classification:

Sign Estimated Sigma (pCi/g): 5.38 Sample Size (N): 5.31 Estimated Conc. (pCi/g): 0.050 Estimated Power: 0.050 3 0.0274 14 0 1 Prospective Power Curve A%j., 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0 1 2 3 4 5 Soil Concentmfrdon (Ci/g), inclmWg backglrsud

-DCGL --Estimated Power N 1-beta 6-Power mm LBGR COMPASS vl.0.0 1111512006 Page I

Soil Survey Plan Contaminant Summary DCGLw Inferred Modified DCGLw Scan MDC Contaminant (pCi/g) Contaminant Ratio (pCilg) (pCilg)Cs-1 37 5.38 N/A N/A N/A N/A Survey Unit Estimate Reference Area Estimate (Mean +/- 1-Sigma) (Mean +/- 1-Sigma)Contaminant (pCi/g) (pCi/g)Cs-137 0.0272 +/- 0.0274 N/A COMPASS v1.0.0 11/1512006 Page 2