ML070740675

Final Status Survey Final Report Phase VI - Appendix A14, Survey Unit Release Record 9527-0006, East Mountain Side, Book 15 of 18

ML070740675
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	02/01/2007
From:	Connecticut Yankee Atomic Power Co
To:	Office of Nuclear Material Safety and Safeguards
References
Download: ML070740675 (182)

Text

{{#Wiki_filter:,1 4-o.~ of1 I Final Status Survey Final Report Phase VI Appendix A14 Survey Unit Release Record 9527-0006, East Mountain Side February 2007

CYAPCO FINAL STATUS SURVEY RELEASE RECORD EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 Prepared By: Reviewed By: Approved By: Date: //'2VA FSS Engi e t*, S /Date: / ES ngineer Date: db/ /07 Technical Support Manager Revision 0

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD TABLE OF CONTENTS

1.

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

2.

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

3.

DATA QUALITY OBJECTIVES (DQO).......................................... 5

4.

SU RV EY D ESIGN............................................................................. 9

5.

SURVEY IMPLEMENTATION....................................................... 12

6.

SU RV EY RESU LTS........................................................................ 13

7.

QUALITY CONTROL.................................................................... 16

8.

INVESTIGATIONS AND RESULTS............................................. 17

9.

REMEDIATION AND RESULTS................................................... 18

10. CHANGES FROM THE FINAL STATUS SURVEY PLAN......... 18

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

19

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

20

13. CO N CLU SION................................................................................

20

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

21 14.1 Attachment 1 - Figures (6 pages including cover) 14.2 Attachment 2 - Scan Results (4 pages including cover) 14.3 Attachment 3 -Laboratory Data (138 pages including cover) 14.4 Attachment 4 - DQA Results (14 pages including covers) TOTAL 183 Revision 0

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD SURVEY UNIT DESCRIPTION Survey Unit 9527-0006 (East Mountainside Area) is designated as Final Status Survey (FSS) Class 1 and consists of 790 m2 (0.2 acres) of uninhabited open land located approximately 715 feet from the reference coordinate system benchmark used at Haddam Neck Plant (HNP) (see Attachment 1). The survey unit is bounded as follows: Survey Unit 9527-0005 to the north (called north as oriented with the north to south flow of the Connecticut River), east and south, and Survey Unit 9312-0010 to the west. A relatively small portion of the area topography is flat or open space. A steep cliff along the western survey unit boundary follows the former Industrial Area boundary. The reference coordinates associated with this survey unit are E014 through E018 by S065 through S069 (refer to License Termination Plan (LTP) Section 5.4.4). The reference coordinates provide the maximum dimensions of a rectangle containing this survey unit. Some areas contained in this rectangle may not be part of this survey unit. The boundary of the survey unit was defined using a Global Positioning System (GPS) based on the Connecticut State Plane System North American Datum (NAD) 1927.

2.

CLASSIFICATION BASIS The survey unit was classified in accordance with Procedure RPM 5.1-10, "Survey Unit Classification. " The "Classification Basis Summary" conducted for Survey Unit 9527-0006 consisted of: a) A review of the 10CFR50.75 (g) (1) database, b) A review of the "Initial Characterization Report" and the "Historic Site Assessment Supplement, " c) Historic and current survey records review, d) Visual inspections and a "walkdown." e) Formal or informal interviews with cognizant personnel. A review of the 10CFR50.75(g)(1) database report and historical files associates several events with this survey unit. Examples of some of the major events are provided below. a) Plant Incident Report (PIR) 78-19 reported that part of the mountainside slid down during heavy rains and caused damage to a building outside the Protected Area. Rip-rap was initially used to stabilize the section of the mountainside that had washed out. Photographs show that stabilization was in place by at least 1980. During an interview, a Health Physics technician recalled surveying rip-rap in 1980 (refer to next event). Gunite, a trade name for "dry gunned" or pneumatically applied or sprayed in place concrete, was later used to provide additional stabilization. The exact date of application is unknown, but interviews Revision 0 3

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD with an Operator and a Health Physics technician place the date somewhere between 1980 and 1981. Additional stabilization along the western ledge was performed sometime after 1989. The stabilization activities included moving the Protective Area fence up onto the ledge and establishing a narrow gunite walkway and drain system adjacent to the fence (reference memo EN-88-749). Additional repair was recommended in 1995 to repair the walkway (reference memo CY-TS-95-0529). The repairs appear to have included applying gunite along the side wall to maintain erosion control and a safe walkway for personnel. The gunite walkway and Radiological Control Area (RCA) fence were removed prior to Final Status Survey (FSS). b) Plant Incident Report (PIR) 80-37 reported the discovery of three (3) discrete sources of elevated activity on the East Mountainside in March 1980, along with other areas around the site. These locations are believed to be associated with Survey Unit 9527-0005 based on a review of the 1980 survey maps. The most likely source, according to the reports associated with PIR 80-37, was any one of a number of operational events that occurred since January 1979 (to discovery in March 1980) causing a burst of air or steam to be released through ventilation ducts and out the Primary Ventilation Stack. The elevated areas were removed upon detection according to the historical records. A review of the "Initial and Supplemental Characterization Reports" as well as the previous "Classification Basis Summaries" was performed. Survey Unit 9527-0006 was originally part of Survey Unit 9527-0003. The source documents, the "Connecticut Yankee Haddam Neck Characterization Report" and "Initial Classification for Survey Areas at Connecticut Yankee", were incorporated by reference in LTP revision 0 (references 2-2 and 2-7 respectively). The second source document justified a Class 2 designation for those areas for which there was historical evidence of contamination above the Derived Concentration Guideline Levels (DCGLs - refer to Section 2 for definition and description of DCGL), but for which recent surveys had shown that decontamination efforts had occurred and that the radiological conditions were expected to be below the DCGLs. Additional justification for a Class 2 designation based on survey and sampling data was provided as another reference to the LTP by the "Haddam Neck Plant Historical Site Assessment Supplement". Characterization was performed in Survey Unit 9527-0005 during 2005 to determine the baseline radiological status of the survey unit. An elevated area was identified, and Survey Unit 9527-0006 was created to bound the extent of elevated activity. Survey Unit 9527-0006 was initially designated as Class 1 based on the need for remedial action. Remedial action was performed in November 2006 followed by a Remedial Action Survey (RAS). Hard-to-detect analysis for Tc-99 was also performed. A review of the RAS data shows that Cs-137 was the only radionuclide of concern. Statistical quantities Revision 0 4

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD (mean, median and standard deviation) from the 2006 RAS are provided in Table 1. Table 1 - Basic Statistical Quantities for Cs-137 from the 2006 RAS Minimum Observed Concentration (pCi/g): 8.50E-02 Maximum Observed Concentration (pCi/g): 2.72E+00 Mean (pCi/g): 1.03E+00 Median (pCi/g): 7.17E-01 Standard Deviation (pCi/g): 1.01E+00 The FSS Engineer performed a visual inspection and walk-down during December 2006 after the Industrial Area fence and walkway were removed 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 the 2005 characterization survey and the need for remedial action, it was concluded that there was a probability for residual radioactivity in concentrations greater than the DCGLs, justifying a final survey unit classification of Class 1.

3.

DATA QUALITY OBJECTIVES (DQO) FSS design and planning used the Data Quality Objective (DQO) process as described by the LTP, Procedure RPM 5.1-11, "Preparation of Final Status Survey Plan, " and the "Multi-Agency Radiation Survey and Site Investigation Manual" (MARSSIM). A summary of the main features of the DQO process are provided herein. The DQO process incorporated hypothesis testing and probabilistic sampling distributions to control decision errors during data analysis. Hypothesis testing is a process based on the scientific method that compares a baseline condition to an alternate condition. The baseline condition is technically known as the null hypothesis. Hypothesis testing rests on the premise that the null hypothesis is true and that sufficient evidence must be provided for rejection. In designing the survey plan, the underlying assumption, or null hypothesis was that residual activity in the survey unit exceeded the release criteria. Rejection of the null hypothesis would indicate that residual activity within the survey unit does not exceed the release criteria. Therefore, the survey unit does satisfy the primary objective of the FSS plan. The primary objective of the FSS plan was to demonstrate that the level of residual radioactivity in Survey Unit 9527-0006 did not exceed the release Revision 0 5

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD criteria specified in the LTP and that the potential dose from residual radioactivity is As Low As Reasonably Achievable (ALARA). A fundamental precursor to survey design is to establish a relationship between the release criteria and some measurable quantity. This is done through the development of DCGLs. The DCGLs represent average levels of radioactivity above background levels and are presented in terms of surface or mass activity concentrations. Chapter 6 of the LTP describes in detail the modeling used to develop the DCGLs for soil (called Base Case Soil DCGL), existing groundwater radioactivity and future groundwater radioactivity that will be contributed by building basements and footings. The DCGLs presented in Chapter 6 of the LTP were developed for exposures from three (3) components, that is, residual radioactivity in soil, existing groundwater radioactivity, and future groundwater radioactivity from the burial of concrete foundations or footings from site buildings containing residual radioactivity. Equation 1 shows the mathematical relationship between the three (3) components and the total dose. Equation 1 HTotal =Hsoil +HExistingGW +HFutureGW The total dose under the LTP criteria is twenty-five (25) mrem/yr Total Effective Dose Equivalent (TEDE) from all three (3) components. The allowable total dose under the Connecticut Department of Environmental Protection (CTDEP) radiological remediation standard for Connecticut Yankee (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. Revision 0 6 Revision 0 6

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD Equation 2 19 mrem/yrT-otal = 17 mrem/yrsoil + 2 mrem/yrExisting GW+ 0 mrem/yrFutreGW The allowable dose for soil in this survey unit is seventeen (17) mrem/yr TEDE as shown by Equation 2 above. The concentration of residual radioactivity resulting in seventeen (17) mrem/yr TEDE is designated as the Operational DCGL, and has been established for the radionuclides of concern as provided in Table 2. Table 2 - Radionuclide Specific Base Case Soil DCGL, Operational DCGLs and Required Minimum Detectable Concentrations Radionuclide (1) Base Case Soil Operational DCGL Required MDC DCGL (pCi/g) 2 (pCi/g) (3) (pCi/g) (4) H-3 4.12E+02 2.80E+02 1.65E+01 C-14 5.66E+00 3.85E+00 2.26E-01 Mn-54 1.74E+01 1.18E+01 6.96E-01 Fe-55 2.74E+04 1.86E+04 1.10E+03 Co-60 3.81E+00 2.59E+00 1.52E-01 Ni-63 7.23E+02 4.92E+02 2.89E+01 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+01 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-01 Eu-152 1.01E+01 6.87E+00 4.04E-01 Eu-154 9.29E+00 6.32E+00 3.72E-0 1 Eu-155 3.92E+02 2.67E+02 1.57E+01 Pu-238 2.96E+01 2.01E+01 1.18E+00 Pu-239/240 2.67E+O 1 1.82E+01 1.07E+00 Pu-241 8.70E+02 5.92E+02 3.48E+01 Am-241(5 2.58E+01 1.75E+01 1.03E+00 Cm-243/244 2.90E+0 1 1.97E+01 1.16E+00 (1) Bold indicates those radionuclides considered to be Hard-to-Detect (HTD) (2) The Base Case Soil DCGLs for soil are specified by the LTP in Chapter 6 and are equivalent to 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 Revision 0 7 Revision 0 7

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD Another important facet of the DQO process is to identify the radionuclides of concern and determine the concentration variability. Soil samples were collected in 2006 to establish the radiological condition of Survey Unit 9527-0006 for FSS following remedial action. A review of the RAS data shows that Cs-137 was the only radionuclide of concern. The RAS data were used for the survey design and are provided in Table 1. Instrument DQOs included a verification of the ability of the survey instrument to detect the radiation(s) of interest relative to the DCGL. Survey instrument response checks were required prior to issue and after the instrument had been used. Control and accountability of survey instruments was required to assure the quality and prevent the loss of data. Barcodes, machine-readable representations of information in a visual format, are the generally accepted method for identifying and processing FSS scan data at HNP, largely because of the improved speed and accuracy of computer data entry and they provide a Unique Product Code (UPC) for easy reference and recognition. The instrument DQOs recognized that it would be much more difficult to perform scanning on the East Mountainside than previously surveyed units. Fall prevention and protection was necessary to access the steepest locations within the survey unit and to work within six feet (6 ft) of an unprotected edge (e.g., near the cliff edge). The fall arrest system included tie-off points, a harness, lanyard and a rope grab which required both hands to move in a vertical direction. An exception was made, in this case, to forgo the use of barcodes in the interest of safety and personnel reassurance and to manually log the data points using the E-600 function switch. Downloading of electronic scan information was performed as usual and the reviewed data is provided in Attachment 2. As part of the DQOs applied to laboratory processes, analysis results were reported as actual calculated results. Results reported as less than Minimum Detectable Concentration (<MDC) were not accepted for FSS. Sample report summaries included unique sample identification, analytical

method, radionuclide, result, and uncertainty to two (2) standard deviations, laboratory data qualifiers, units, and the required and observed MDC.

The Elevated Measurement Comparison (EMC) consists of comparing each measurement from the survey unit with the investigation levels presented in Table 4 and discussed in Section 4.0. As stated in section 5.8.3 of the LTP, any measurement from the survey unit that is greater than an investigation level indicates an area of relatively high concentrations that should be investigated, regardless of the outcome of the nonparametric statistical tests. Thus the use of the EMC against the investigation levels may be viewed as assurance that unusually large measurements will receive proper attention regardless of the outcome of nonparametric statistical tests and that any area having the potential for significant dose contributions will be identified. Revision 0 8

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD The LTP states that if residual radioactivity exists in an isolated area of elevated activity in addition to residual radioactivity distributed relatively uniformly across a survey unit, the unity rule will be used in conjunction with DCGLEMC to ensure the total dose is within the release criterion. This is expressed in Equation 3. Equation 3 (LTP Equation 5-31): e+ levated DCGLW (AreaFactor) x DCGL w Where: S* = Average concentration outside the elevated area, Celevated = Average concentration in the elevated area. A separate term will be used in Equation 3 for each elevated area in a survey unit.

4.

SURVEY DESIGN The level of effort associated with planning a survey is based on the complexity of the survey and nature of the hazards. Guidance for preparing FSS plans is provided in Procedure RPM 5.1-11, "Preparation of Final Status Survey Plans". The FSS plan uses an integrated sample design that combines scanning surveys and sampling which can be either random or biased. The DQO process determined that Cs-137 would be the radionuclide of concern in Survey Unit 9527-0006 (refer to Section 3). Other radionuclides identified during this FSS would be evaluated to ensure adequate survey design. Surrogate DCGLs were not required for this survey unit via screening under LTP Section 5.4.7.2, "Gross Activity DCGLs". Radionuclide screening or de-selection is a process where an individual radionuclide or aggregates may be considered insignificant and eliminated from the FSS. The criteria for de-selection are concentrations less than 5% for individual radionuclides and less than 10% for aggregates. The Elevated Measurement Comparison (EMC) did apply to this survey unit since it is a Class 1 area and discrete, elevated areas of contamination were expected. The Sign Test was selected as the non-parametric statistical test. The use of the Sign Test did not require the selection or use of a background reference area, which simplified survey design and implementation. This approach was conservative since it included background Cs-137 as part of the sample set. Revision 0 9

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD The number of soil samples for FSS was determined in accordance with Procedure RPM 5.1-12, "Determination of the Number of Surface Samples for Final Status Survey." The Lower Bound of the Gray Region (LBGR) was set in accordance with Procedure RPM 5.1-11 to 2.69 pCi/g to maintain the relative shift (A/cv) in the range of 1 and 3. The resulting relative shift was 2.66. A Prospective Power Curve was generated using COMPASS, a software package developed under the sponsorship of the United States Nuclear Regulatory Commission (USNRC) for implementation of the MARSSIM in support of the decommissioning license termination rule (10 CFR 20, Subpart E). The result of the COMPASS computer run showed adequate power for the survey design. The survey design specified fourteen (14) surface soil samples for non-parametric statistical testing. The grid pattern and locations of the soil samples were determined using Visual Sample Plan (VSP) in accordance with Procedure RPM 5.1-14, "Identifying, and Marking Surface Sample Locations for Final Status Survey." Visual Sample Plan was created by Pacific Northwest National Laboratory (PNNL) for the United States Department of Energy. A systematic triangular grid pattern with a random starting point was selected for sample design, which is appropriate for a Class I area. Biased sampling was not included based on the sample density being high and the results of the remedial action. Sample locations were identified using AutoCAD-LT, a commercially available plotting software package with coordinates consistent with the Connecticut State Plane System. These coordinates were integrated with a GPS to locate sample locations in the field. Sample Measurement Locations for the design are listed with the GPS coordinates in Table 3. Table 3 - Sample Measurement Locations with Associated GPS Coordinates Designation Northing Easting 9527-0006-OO1F 236786.70 668872.27 9527-0006-002F 236786.70 668898.00 9527-0006-003F 236786.70 668923.72 9527-0006-004F 236764.42 668859.41 9527-0006-005F 236764.42 668885.13 9527-0006-006F 236764.42 668910.86 9527-0006-007F 236764.42 668936.58 9527-0006-008F 236742.14 668846.54 9527-0006-009F 236742.14 668872.27 Revision 0 10

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD Table 3 - Sample Measurement Locations with Associated GPS Coordinates Designation Northing Easting 9527-0006-O1OF 236742.14 668898.00 9527-0006-01IF 236742.14 668923.72 9527-0006-012F 236719.86 668885.13 9527-0006-013F 236719.86 668910.86 9527-0006-014F 236719.86 668936.58 Procedure RPM 5.1-11 specifies that 5% of the samples are required to be selected for HTD analysis. Two (2) soil samples, or about 10% of the number of samples that would be used for non-parametric statistical testing were randomly selected for HTD radionuclide analysis using the Microsoft Excel "RANDBETWEEN" function. Each sample was sent off-site for a full suite analysis of the HTD radionuclides specified in the LTP, Table 2-12, "Radionuclides Potentially Present at Haddam Neck Plant" and as provided in Table 2. The 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 10% of fourteen (14) samples that would be used for non-parametric statistical testing. The LTP specifies a required scanning coverage of 100% for outdoor Class 1 areas. The total surface area to be scanned was 100% of the survey unit. For this Class 1 survey unit, the "Investigation Level" for area scanning and soil sample measurement results are those levels specified in LTP, Table 5-8. Table 4 provides a synopsis of the survey design. Table 4-Synopsis of the Survey Design Feature Design Criteria Basis Survey Unit Land Area 751 m2 Based on AutoCAD-LT Type 1 and Type 2 errors were 14 0.05, sigma was 1.01 pCi/g, the Number of Measurements LBGR was adjusted to 2.69 (14 systematic grid) pCi/g to maintain Relative Shift in the range of 1 and 3 Grid Spacing 7.87 m Based on triangular grid lDCGL 5.38 pCi/g Cs-137 Administratively set to achieve Operational 17 mrem/yr TEDE (') The Operational DCGL meets Soil Investigation Level 5.38 pCi/g Cs-137 the LTP criteria for a Class 1 survey unit Revision 0 11

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD Table 4 Synopsis of the Survey Design Feature Design Criteria Basis Scan Survey Area 100% The LTP requires 100% area Coverage of the area coverage for Class 1 survey units An instrument Based upon a Minimum Detectable Count Rate (MDCR) Scan Investigation Level response greater of 1,565 cpm and a than 3,800 cpm corresponding DCGLEMC of above background 16.6 pCi/g for Cs-137 (2) (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) (2) The radionuclide fraction is one (1), the Area Factor is 3.08, and the instrument conversion factor is 228 cpm/pCi/g for Cs-137

5.

SURVEY IMPLEMENTATION FSS field activities were conducted under Work Plan and Inspection Record (WP&IR) 2006-0038. The WP&IR package included a detailed FSS plan, job safety analysis, job planning checklist and related procedures for reference. Daily briefings were conducted to discuss the expectations for job performance and the safety aspects of the survey. The "Daily Survey Journal" was used to document field activities and other information pertaining to the FSS. One (1) scan area was established that constituted 100% of the surface area of Survey Unit 9527-0006. Grid lines, one meter wide, were painted or otherwise delineated on the ground of the scan area. A background survey was performed around the survey unit and it was determined that, using an Eberline E-600 with a SPA-3 sodium iodide detector, background ranged from 8,450 counts per minute (cpm) up to 13,300 cpm. The scan area was established and scanned for elevated readings (see for all scan results). Scanning was performed with an Eberline E-600 using a SPA-3 sodium iodide detector. The E-600 was operated in the rate-meter mode and used with audio response. The probe was positioned as close to the ground as possible and was moved at a scan speed of about 0.5 meters per second. Measurement locations were identified in NAD 1927 coordinates using GPS coordinates; sample locations were identified and marked with a surveyor's flag or paint for identification. Sixteen (16) surface soil samples were collected and packaged in accordance with 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." Revision 0 12

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD Two (2) samples (9527-0006-002F and 9527-0006-01 IF) were randomly selected for HTD radionuclide analysis. The implementation of survey specific quality control measures included the collection of two (2) samples (9527-0006-00IF and 9527-0006-01 IF) for "split sample" analysis.

6.

SURVEY RESULTS All field survey activities were conducted from December 15, 2006 through December 19, 2006. Table 5 provides an overview of the scan results for sample measurement locations. Scan results are provided in Attachment 2. Table 5 - Scan Results for Sample Measurement Locations Sample Highest Logged Action Level (3) Measurement Reading > Action Level Location (1)(2) (kcpm) (kcpm) 1 10.2 13.4 NO 2 11.4 13.6 NO 3 9.7 13.1 NO 4 12.7 13.7 NO 5 11.1 13.9 NO 6 10.4 12.9 NO 7 10.3 13.4 NO 8 11.4 14.5 NO 9 12.0 15.4 NO 10 11.1 14.2 NO 11 9.7 13.9 NO 12 10.1 14.4 NO 13 12.4 14.4 NO 14 11.1 14.5 NO 107-12.2 11.6 Yes (9527-0005-010F) 26 11.6 10.9 Yes 27 11.6 10.9 Yes 28 11.6 10.9 Yes Revision 0 13

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD Table 5 - Scan Results for Sample Measurement Locations Sample Highest Logged Action Level (3) Measurement Reading > Action Level Location (1)(2) (kcpm) (kcpm) 29 11.6 10.9 Yes 30 10.5 14.5 No (1) The second sample location #10 (9527-0005-010F), and sample locations #26 through#30 were originally collected in adjacent Survey Unit 9527-0005, and were added to this survey unit as a result of the investigation of an elevated sample result. This resulted in a shift of the 9527-0006 survey unit boundary to include an additional 40 m2 of land area bringing the total area for this survey unit to 790 M 2. (2) Samples #26 through #29 were collected within 1 meter of sample location #10 (9527-0005-01 OF), and share the same scan result, which was the highest logged reading. (3) The action level is based on a measurement of 3,800 cpm above ambient background in accordance with the FSS plan The survey unit was scanned for elevated radiation levels. The area was scanned in accordance with the FSS plan on December 15, 2006 and December 18, 2006. No elevated measurement locations were identified during scanning. Table 6 provides an overview of the scan area survey. Scan results are provided in Attachment 2. Table 6 - Scan Area Results Highest Scan Logged Action Level Elevated Investigation Ae Redn(cm)ReadingInetgio Area Reading (kcpm) Identification (2) Sample (kcpm) None - no 1 12.8 14.2 elevated areas None identified (1) The action level is based on a measurement of 3,800 cpm above ambient background in accordance with the FSS plan The off-site laboratory employed for the radiological analyses of samples was General Engineering Laboratories, LLC, in Charleston, SC. The laboratory analyzed the fourteen (14) samples collected for non-parametric statistical testing and the two (2) associated field splits using gamma spectroscopy. Gamma spectroscopy analysis was performed to the required MDCs. Gamma spectroscopy results identified some radionuclides meeting the accepted criteria for detection (i.e., a result greater than two (2) standard deviations uncertainty). Cs-137 and Co-60 were the only radionuclides reported in concentrations exceeding the de-selection criteria. Cs-137 was identified in all fourteen (14) samples collected for non-parametric statistical testing. Cs-137 was the primary radionuclide confirming the DQOs. Co-60 was also identified in seven (7) of the fourteen (14) samples with three (3) of those samples exceeding the de-selection criteria. Revision 0 14

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD 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. Sr-90 was the only HTD, which by analysis, met the criteria for detection (i.e., a result greater than two (2) standard deviations uncertainty). One (1) Sr-90 reported result exceeded the de-selection criteria. The highest result for Sr-90 was at about 8% of the Operational DCGL. A review of the DQOs was performed to evaluate Sr-90 impact on dose compliance. Additional analysis for Sr-90 in the remaining FSS samples was considered, and found to be unjustified for the following two reasons. Sr-90 represents a small fraction of the dose limits and was found in quantities only slightly in excess of detection limits during FSS. Likewise, Sr-90 results reported during characterization of this survey unit and during the FSS of adjacent survey units were also a small fraction of the dose limits and in quantities only slightly in excess of detection limits in a few cases (some results were non detects). Therefore, the risk of failing the survey unit based on Sr-90 is not likely. For the purposes of dose compliance the average concentration from the FSS results of 4.70E-02 pCi/g was used to provide a reasonable value for Sr-90 for using the unity rule. Table 7 - Summary of Sr-90 Analysis Results for Surface Soil Samples Comprising the Statistical Sample Population Sample Sr-90 Sample _(pCi/g) 9527-0006-002F 9.03E-02 9527-0006-01 IF 3.67E-03 The "sum-of-fractions" or "unity rule" is the mathematical test used to evaluate compliance with radiological criteria for license termination when more than one radionuclide has been determined to be potentially present. The combination of the fractions of each detected radionuclide against their respective Operational DCGL must be less than or equal to one (1). The unity rule is: Equation 3 Cl C2 C -+ +..... < 1 DCGLI DCGL2 DCGL,, Revision 0 15

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD Where: C. = concentration of radionuclide n and DCGLn1 = DCGL of radionuclide n. The results of the unity rule calculation for the radionuclides of concern in the statistical sample population for Survey Unit 9527-0006 are provided in Table 8 below. Table 8 - Summary of Soil Sample Results for the Statistical Sample Population Sample Number Fraction of the Operational DCGL ) Unity Cs-137 Co-60 Sr-90 (2) Fraction 9527-0006-OOIF 0.23 0.03 0.05 0.31 9527-0006-002F 0.16 0.02 0.09 0.27 9527-0006-003F 0.05 0.01 0.05 0.11 9527-0006-004F 0.50 0.05 0.05 0.60 9527-0006-005F 0.29 0.01 0.05 0.35 9527-0006-006F 0.17 0.00 0.05 0.22 9527-0006-007F 0.12 0.00 0.05 0.17 9527-0006-008F 0.17 0.00 0.05 0.22 9527-0006-009F 0.31 0.00 0.05 0.36 9527-0006-OIOF 0.73 0.05 0.05 0.83 9527-0006-01IF 0.19 0.00 0.00 0.19 9527-0006-012F 0.24 0.02 0.05 0.31 9527-0006-013F 0.82 0.06 0.05 0.93 9527-0006-014F 0.78 0.05 0.05 0.88 (1) The Operational DCGL from Table 2 is 5.38 pCi/g for Cs-137, 2.59 pCi/g for Co-60 and 1.05 pCi/g for Sr-90 used in conjunction with the unity rule to achieve seventeen (17) mrem/yr TEDE (2) The average concentration of 4.70E-02 pCi/g for Sr-90 was used to provide a reasonable value for using the unity rule

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 Revision 0 16 Revision 0 16

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD Final Status Survey". There was acceptable agreement between the field split results for Cs-137 at both locations (9527-0006-001 and 9527-0006-011). The sample analysis vendor, General Engineering Laboratories, LLC, maintains quality control and quality assurance plans as part of normal operation. Refer to for data and data quality analysis results.

8.

INVESTIGATIONS AND RESULTS The sample results for 9527-0005-010 were above the investigation level, which was not expected for a Class 2 survey unit. The physical location of the sample was within six feet (6 ft) of the boundary of Survey Unit 9527-0006. Additional survey and sampling around the sample location did not identify areas of elevated radioactivity. The boundary for Survey Unit 9527-0006 was extended to include sample location 9527-0005-010 and the area of investigation. Approximately 40 m2 was added to this survey unit bringing the total area to 2 790 m2. The first step in assessing compliance with the EMC unity rule is to determine the area extent of the elevated measurement region. This was done by taking investigation samples within a circle oriented about the four compass directions around the elevated sample point. Five (5) confirmatory samples were collected from around sample location 9527-0005-010. Four (4) of the samples were collected within a 1 meter radius of the elevated area. One (1) sample was collected a little more than 12 feet away from the elevated area to establish the revised boundary of the survey unit. Table 9 - Confirmatory Sample Results Cs-137 Co-60 Sr-90 (1)(2) Unity Sample Number pCi/g pCi/g pCi/g Fraction (3) 9527-0005-OIOF 5.45E+00 2.28E-01 3.42E-02 1.134 9527-0005-026F 1.95E+00 1.42E-01 4.70E-02 0.462 9527-0005-027F 2.51 E+00 1.72E-01 4.70E-02 0.577 9527-0005-028F 2.53E+00 6.58E-02 4.70E-02 0.541 9527-0005-029F 3.19E+00 1.66E-01 4.70E-02 0.702 9527-0005-030F 1.45E+00 6.20E-02 4.70E-02 0.339 (1) The result for Sr-90 satisfied the DQOs for on-site analysis of the investigation samples. (2) The average concentration of 4.70E-02 pCi/g for Sr-90 was used to provide a reasonable value for using the unity rule DCGL. (3) The Operational DCGL from Table 2 is 5.38 pCi/g for Cs-137, 2.59 pCi/g for Co-60 and 1.05 pCi/g for Sr-90 used in conjunction with the unity rule to achieve seventeen (17) mrem/yr TEDE 22 Since the bounded area was determined to be 3.14 m2, the Area Factor (AF) values from Table 5-5 of the LTP for 4 m2 were conservatively applied to determine the DCGLEMC for each nuclide. Revision 0 17 Revision 0 17

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD Table 10 - Use of DCGLEMc To Demonstration Compliance with Equation 3 Variable () Cs-137 Co-60 Sr-90 (2) Unity Fraction Operational DCGL 5.38 pCi/g 2.59 pCi/g 1.05 pCi/g 1.83 pCi/g 0.055 pCi/g 0.05 pCi/g 0.44 Celevated 2.85 pCi/g 0.14 pCi/g 0.05 pCi/g AF 8.98 4.22 314 (1) Refer to Equation 3 in Section 3 for description (2) The reported concentration of 3.42E-02 pCi/g in sample 9527-0005-OIOF was used for Celevated. The average concentration of 4.70E-02 pCi/g for ST-90 was used when actual results were unavailable to provide a conservative value.

9.

REMEDIATION AND RESULTS There were no remedial actions required as a result of implementing the Final Status Survey Plan. Remedial action was performed in November 2006 followed by an RAS. The results of the remedial action resulted in a mean concentration of 1.03 pCi/g for Cs-137 following soil removal. 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 Although not included as Radionuclides of Concern (ROC) in the original FSS design, Co-60 and Sr-90 were reported in concentrations exceeding the 5% and 10% rule for de-selection. Therefore, the results and individual Operational DCGLs for Co-60 and Sr-90 were evaluated in conjunction with the unity rule to ensure that all dose contributors are adequately accounted for in accordance with the DQOs. The result of the COMPASS computer run showed adequate power and maintained the original fourteen (14) surface soil samples for non-parametric statistical testing. Several samples were relocated to this survey unit from adjacent Survey Unit 9527-0005 following investigation. One of the samples, the original investigation sample 9527-0005-010F, was analyzed for Sr-90 by the off-site laboratory to demonstrate that on-site analysis of the investigation samples was appropriate. The contribution of the reported Sr-90 concentration to that of the total sample activity was sufficiently small that the DQOs for on-site analysis of investigative samples was satisfied. Revision 0 18

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 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. Co-60 and Sr-90 were included to demonstrate compliance with release criteria. The sampling design had adequate power as indicated by the Retrospective Power Curve. The Sign Test was performed on the data and compared to the original assumptions of the DQOs. The evaluation of the Sign Test results demonstrates that the survey unit passes the unrestricted release criteria, thus, the null hypothesis is rejected. Documentation was complete and legible. Surveys and sample collection were consistent with the DQOs and were sufficient to ensure that the survey unit was properly designated as Class 1. The preliminary data review consisted of calculating basic statistical quantities (e.g., mean, median, standard deviation). The mean and median values are below the Operational DCGL. The use of DCGLEMC in conjunction with the unity rule described by Equation 3 for one elevated area was satisfied. Also, the retrospective power curve shows that a sufficient number of samples were collected to achieve the desired power. Therefore, the survey unit meets the unrestricted release criteria with adequate power as required by the DQOs. The basic statistical quantities for the statistical sample population are provided below in Table 11. Table 11 - Basic Statistical Quantities for Cs-137, Co-60 and Sr-90 from the Final Status Survey Cs-137 Co-60 Sr-90 pCi/g pCi/g pCi/g Operational DCGL: 5.3 8E+00 2.59E+00 1.05E+00 Minimum Value: 2.71E-01 O.OOE+00 3.67E-03 Maximum Value: 4.42E+00 1.52E-01 9.03E-02 Mean: 1.83E+00 5.51E-02 4.70E-02 Median: 1.27E+00 3.68E-02 4.70E-02 Standard Deviation: 1.40E+00 5.89E-02 1.70E-02 Revision 0 19 Revision 0 19

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD For Cs-137, the range of the data, about three (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 slight 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 1.04. Both the frequency plot and quantile plot indicate some bimodality, which is not unexpected given the extreme changes in terrain and topography. Although included for compliance purposes, data assessment and graphical representation of Co-60 and Sr-90 was not considered useful given the limited number of data points to represent the distribution. All data, assessments, and graphical representations are provided in Attachment 4.

12.

ANOMALIES No anomalies were noted.

13.

CONCLUSION Survey Unit 9527-0006 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 required. Cs-137 was used for statistical testing to determine the adequacy of the survey unit for FSS. The sample data passed the Sign Test. The null hypothesis was rejected. The Retrospective Power Curve generated using COMPASS shows adequate power was achieved. The survey unit is properly designated as Class 1. The dose contribution from soil is 6.9 mrem/yr based on the average concentration of the samples used for non-parametric statistical sampling. This survey area is affected by existing groundwater (reference CY memo ISC 06-024); therefore the dose contribution from existing groundwater is bounded at two (2) mrem/yr TEDE. This survey unit is not considered impacted by future groundwater radioactive contamination, as there are no buried concrete foundations or footings 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 Revision 0 20 Revision 0 20

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD footings from site buildings containing residual radioactivity, will not exceed 8.9 mrem/yr TEDE. Therefore, Survey Unit 9527-0006 is acceptable for unrestricted release.

14.

ATTACHMENTS 14.1 Attachment 1 - Figures 14.2 Attachment 2 - Scan Results 14.3 Attachment 3 - Laboratory Results 14.4 Attachment 4 - DQA Results Revision 0 21

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD ATTACHMENT 1 (FIGURES)

Rom Qwdft *-- an-W pNOrUffih - 23594.. / E09hi - SM681I4 '/4 2s~ I \\_~ TI P -- ' a T-1 i \\ Connecticut Yankee Atomic Power Company Site Map With Reference To Survey Unit 9527-0006 6--i-

K 0. = Sone Wall 0.87 0 8 16 Fed 0.90 Notes 1.01 Reported Conentrations in pCi/g 1.54 4.2 3.93 2.71 4.42 1.69 1.31 0.90 Connecticut Yankee Atomic Power Company 9527-0006 Final Status Survey Cs-137Posting Plot

= sowe WJ/ =Scan Azm 0 8 16 Fed Notes Background ranged from 8.45 kcpm to 13.3 kcpm as determined by an E-600 with SPA-3 Probe Refer to Table 6 for the scan area results Connecticut Yankee Atomic Power Company 9527-0006 Final Status Survey Scan Areas

30 0 8 16 Foed Notes Samples 26-29 collected within one meter of sample 10 (shown in red). Sample 30 collected a little more than twelve feet from sample 10 (shown in red). Refer to Table 9 for the confirmatory I sample results Connecticut Yankee Atomic Power Company Date: Januaty 2007 9527-0006 Final Status Survey Confirmatory SamplesJ McCarth

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD ATTACHMENT 2 (SCAN RESULTS)

Survey Release Record Sample Location Scan Results Survey Unit 9527-0006 Sample Name 9527-0006-001 F 9527-0006-002F 9527-0006-003F 9527-0006-004F 9527-0006-005F 9527-0006-006F 9527-0006-007F 9527-0006-008F 9527-0006-009F 9527-0006-01 OF 9527-0006-011 F 9527-0006-012F 9527-0006-013F 9527-0006-014F 9527-0005-01 OF 9527-0005-026F 9527-0005-027F 9527-0005-028F 9527-0005-029F 9527-0005-030F

Background

(cpm) 9.61 E+03 9.79E+03 9.26E+03 9.92E+03 1.01E+04 9.11 E+03 9.58E+03 1.07E+04 1.16E+04 1.04E+04 1.01E+04 1.06E+04 1.06E+04 1.07E+04 9.54E+03 9.54E+03 9.54E+03 9.54E+03 9.54E+03 8.72E+03 Action Level (C1M) 1.34E+04 1.36E+04 1.31 E+04 1.37E+04 1.39E+04 1.29E+04 1.34E+04 1.45E+04 1.54E+04 1.42E+04 1.39E+04 1.44E+04 1.44E+04 1.45E+04 1.22E+04 1.09E+04 1.09E+04 1.09E+04 1.09E+04 1.45E+04 Results Above Log Date Log Time E600 SIN Probe SIN 1.02E+04 1.14E+04 9.72E+03 1.27E+04 1.11E+04 1.04E+04 1.03E+04 1.14E+04 1.20E+04 1.11E+04 9.70E+03 1.0 1E+04 1.24E+04 1.11 E+04 1.16E+04 1.16E+04 1.16E+04 1.16E+04 1.16E+04 1.05E+04 AL 12/19/2006 12/19/2006 12/19/2006 12/19/2006 12/19/2006 12/19/2006 12/19/2006 12/19/2006 12/19/2006 12/19/2006 12/19/2006 12/19/2006 12/19/2006 12/19/2006 + 12/18/2006 + 12/18/2006 + 12/18/2006 + 12/18/2006 + 12/18/2006 1/9/2007 7:43:00 7:45:00 7:47:00 8:21:00 7:49:00 7:52:00 7:53:00 8:11:00 8:07:00 8:05:00 7:56:00 9:55:00 8:02:00 7:59:00 13:45:00 13:45:00 13:45:00 13:45:00 13:45:00 9:45:00 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1114 1111 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1004 Sample location 9527-0005-01OF, and sample locations 9527-0005-026F through 9527-0005-030F were added to this survey unit during the investigation of an elevated sample result (9527-0005-01OF), which resulted in a shift of this survey unit's boundary to include an additional 40 m2 AL - Action Level

Survey Release Record Scan Area Results Survey Unit 9527-0006 9527-0006 SCAN AREA 1

Background

Loc Number (c2fl3 2 3 4 5 7 8 10 11 12 13 15 16 18 1 3 5 7 9 11 13 2 5 7 9 11 13 15 9.14E+03 9.14E+03 9.14E+03 9.14E+03 9.17E+03 9.17E+03 9.77E+03 9.77E+03 9.77E+03 9.77E+03 8.55E+03 8.55E+03 9.66E+03 8.85E+03 1.01 E+04 1.01 E+04 1.06E+04 9.05E+03 1.08E+04 8.45E+03 1.23E+04 1.12E+04 1.07E+04 1.10E+04 1.16E+04 1.15E+04 1.18E+04 Action Level (c1M) 1.29E+04 1.29E+04 1.29E+04 1.29E+04 1 30E+04 1.30E+04 1.36E+04 1.36E+04 1.36E+04 1.36E+04 1.24E+04 1.24E+04 1.35E+04 1.27E+04 1.39E+04 1.39E+04 1.44E+04 1.29E+04 1.46E+04 1.23E+04 1.61 E+04 1.50E+04 1.45E+04 1.48E+04 1.54E+04 1.53E+04 1.56E+04 I(2rnŽ AL Results Above 1.19E+04 1.17E+04 1.23E+04 9.08E+03 1.17E+04 9.44E+03 1.23E+04 1.15E+04 1.19E+04 9.35E+03 1.12E+04 1.17E+04 8.16E+03 9.68E+03 1.03E+04 1.01E+04 8.89E+03 9.61 E+03 1.02E+04 9.11E+03 1.18E+04 1.07E+04 1.26E+04 1.07E+04 1.12E+04 1.12E+04 1.05E+04 Log Date Log Time E600 SIN Probe SIN 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/15/2006 12/18/2006 12/1812006 12/18/2006 12/18/2006 12/18/2006 12/18/2006 12/18/2006 13:10:00 13:14:00 13:22:00 13:28:00 13:41:00 13:45:00 13:48:00 13:55:00 14:02:00 14:07:00 14:18:00 14:21:00 14:37:00 15:05:00 15:13:00 15:18:00 15:23:00 15:28:00 15:32:00 15:37:00 7:47:00 8:00:00 8:03:00 8:06:00 8:09:00 8:12:00 8:15:00 1112 1112 1112 1112 1112 1112 1112 1112 1112 1112 1112 1112 1112 1117 1117 1117 1117 1117 1117 1117 1114 1114 1114 1114 1114 1114 1114 1013 1013 1013 1013 1013 1013 1013 1013 1013 1013 1013 1013 1013 1008 1008 1008 1008 1008 1008 1008 1014 1014 1014 1014 1014 1014 1014 AL - Action Level The log number assignment is an intrinsic property of the survey instrument, and as such, may not be sequential or uniaue hbsed on the date and number of instruments used in the field

Survey Release Record Scan Area Results Survey Unit 9527-0006 9527-0006 SCAN AREA 1

Background

Loq Number cm 17 1.33E+04 19 1.04E+04 4 9.53E+03 7 9.95E+03 9 1.04E+04 Action Level (cPM) 1.71E+04 1.42E+04 1.33E+04 1.38E+04 1.42E+04 Results 1.05E+04 1.04E+04 9.98E+03 9.31 E+03 1.28E+04 Above AL Log Date Log Time E600 S/N Probe S/N 12/18/2006 12/18/2006 1/9/2007 1/9/2007 1/9/2007 8:21:00 8:23:00 13:47:00 13:57:00 14:06:00 1114 1114 1111 1111 1111 1014 1014 1004 1004 1004 AL - Action Level The log number assignment is an intrinsic property of the survey instrument, and as such, may not be sequential or uniaue based on the date and number of instruments used in the field

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD ATTACHMENT 3 (LABORATORY DATA)

General Narrative 1

General Narrative for Connecticut Yankee Atomic Power Co. Work Order: 178151 SDG: MSR#06-1583 January 08, 2007 Laboratory Identification: GEL Laboratories LLC 2040 Savage Road Charleston. South Carolina 29407 (843) 556-8171 Summary Sample receipt The samples arrived at GEL Laboratories LLC. Charleston, South Carolina on December 21, 2006 for analysis. Shipping container temperatures were checked. documented, and within specifications. The samples were delivered with proper chain of custody documentation and signatures. All sample containers arrived without any visible signs of tampering or breakage. Sample Identification The laboratory received the following samples: Laboratory Identification 178151001 178151002 178151003 178151004 178151005 178151006 178151007 178151008 178151009 178151010 178151011 178151012 178151013 178151014 178151015 178151016 Sample Description 9527-0006-00IF 9527-0006-001 FS 9527-0006-002F 9527-0006-003F 9527-0006-004F 9527-0006-005F 9527-0006-006F 9527-0006-007F 9527-0006-008F 9527-0006-009F 9527-0006-01OF 9527-0006-01 IF 9527-0006-011 FS 9527-0006-012F 9527-0006-013F 9527-0006-014F Items of Note This is a revised report in regards to the Strontium-90 results for sample 178151012. Case Narrative Sample analyses were conducted using methodology as outlined in GEL Laboratories, LLC (GEL) Standard Operating Procedures. Any technical or administrative problems during analysis, data review, and reduction are contained in the analytical case narratives in the enclosed data package. POox30712 Charleston,SC 29417 2040 Savage Road ChardestnSC29407 843.555.8171 843.766.1178 2

Analytical Request Thirteen soil samples were analyzed for FSSGAM. Three soil samples were analyzed for FSSALL. Data Package The enclosed data package contains the following sections: General Narrative, Chain of Custody and Supporting Documentation, Data Review Qualifier Definitions, and data from the following fractions: Radiochemistry. I certify that this data package is in compliance with the SOW, both technically and for completeness, for other than the conditions detailed above. Release of the data contained in this hard copy data package has been authorized by the Laboratory Manager or a designee. as verified by the following signature. Project Manager PO Box 30712 Chadeston, SC 29417 2040 Savage Road Charleston, SC 29407 3 843.555.8171 843.766.1178

List of current GEL Certifications as of 08 January 2007 State Certification Alaska i UST-062 Arizona AZ0668 Arkansas 88-0651 CLIA 42D0904046 California 01 151CA (oi1orado-G-enlEngýL-ab s Connecticut PH-O 169 Dept. of Navy N-FESC 413 EPA WG-15J Florida/NELAP E87156 G3e-orgia-E87i56 (FIJNELAP) Hawwaii N/A Idaho 'N/A Illinois '200029 Indiana C-SC-01 Kansas E-10332 Kentucky 90129 Louisiana 03046 Maryland 270 Massachusetts M-SCO12 Michigan . 990 Nevada -"SC 12 New jersey v SCO02 New Mexico FL NELAP E87156 NewYo-rki 11501 N oirth Caro li n- -a 233 North Carolina Drinking W 45709 Oklahoma .9904 Pennsylvania 68-00485 South Carol1ina 120601710585*0-01/161o206-02 Tennessee 02934 Texas TX21 3-2006A Texas NELAP i T104704235-06-TX U.S. Dept. of Agriculture S--52597 US Arrmy-Corps of Engineer - -NVA*- Utah 8037697376 GEL Vermont i VT87156 Virginia 0015[ 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, vi V vi V V

Connecticut Yankee Atomic Power Company Chain of Custody Form No. 2006-00739 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: El 30 D. E 14 D. [] 7 D. Other: Sample Desigation Date Time L Comment, Preservation Lab Sample ID 9527-0006-OOIF 12/19/06 0741 TS G BP X 9527-0006-OO1FS 12/19/06 0741 TS G BP X 9527-0006-002F 12/19/06 0744 TS G BP X 9527-0006-003F 12/19/06 0746 TS G BP X 9527-0006-004F 12/19/06 0822 TS G BP X 9527-0006-005F 12/19/06 0748 TS G BP X 9527-0006-006F 12/19/06 0750 TS G BP X 9527-0006-007F 12/19/06 0752 TS G BP X 9527-0006-008F 12/19/06 0811 TS G BP X 9527-0006-009F 12/19/06 0807 TS G BP X 9527-0006-01 OF 12/19/06 0805 " TS G BP X Samples Shipped Via: Internal o*jer NOTES: PO #: 002332 MSR 4: 6*- /ZJ. LTP QA El Radwaste QA E] Non QA Sp Fed Ex Tempra eg. C El u8S 7",Z..,* 79f £7.Ja El7.] Hand Custod~!Sealedy YOI N;/ I) RelinquiseB Date/Time 2 R ed Date/Time Custody Seal Intact? El Other

3) Relinquished By Date/Time

4) Received bate/Time Y 0 ND Bill of Lading #

5) Relinquished By Date/Time

6) Received By Date/Time

Health Physics Procedure GPP-GGGR-R5104-003 -Attachment B-CY-00 I Major '..1/ 1" V V V Connecticut Yankee Atomic Power Company Chain of Custody Form 362 Injun Hollow Road, East Hampton, CT 06424 No. 2006-00740 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: 13 30 D. 0 14 D. 1] 7 D. Other: Sample Designation Date Time Comment, Preservation Lab Sample ID 9527-0006-011F 12/19/06 0756 TS G BP X 9527-0006-01 IFS 12/19/06 0756 TS G BP X 9527-0006-012F - 12/19/06 0955 TS G BP X 9527-0006-013F, 12/19/06 0801 TS G BP X 9527-0006-014F. 12/19/06 0759 TS G BP X N/A N/A N/A N/A N/A N/A Samples Shipped Via: internal C9~ne NOTES: PO #: 002332 MSR #: o4 - Z LTP QA 13 Radwaste QA 13 Non QA Fed Ex Temp g Cainer 77g.*~~~~~~~ ~~~~ z

• ¢ "f 7.)((

~~e xTm,*

g. C 13 Hand Custody Seale1?

1) Rel 5 heBy D te/Time 2)(Rei ed ate/Time Custody.] yaIntac?

• ~i-

/90-1 E-lLgL t - I H Other

3) l4iinquished By Date/Time

4) Received B,

'\\_ _ate/Time YO NE Bill of Lading #

5) Relinquished By Date/Time

6) Received By Date/Time

Connecticut Yankee Statement of Work for Analytical Lab Services CY--SC-SQWO0l Figure ]. Sample Check-in List. Date/Time Received: *A \\ SDG#: Work Order Number: ('I Shipping Cdktainer ID:

• LO Chain of Custody # 0oO

.Y "73 7D*

i.

Custody Seals oti shipping container intact?. -yes [ J No [J ] Cy/*

7.

"4'-

2.

CustodySeals dtedand signled? Yes'[ N o [ N4

3.

Chain-of-CustodJy record present? " Yes), lNo I

4.

Cooler temperature 1 "7 1 -/

5.

Vermiculite/packing materials is: Wet [ ] Dry {(, ] / 6/ 6 .Number of samples in shipping container:

7.

Sample holding times exceeded? Yes [ ] No S.,Samples have:* . 7,Ztape __hazard labe*s /.'custody seals appropriate sample labels

9. Samples aret-Z, in good condition leaking

-broken -have air bubbles

10.

Were any anomalies identified in sample receipt? Yes [ ] No ] 1 1.. .Description of anomalies.(include sample numbers): $amrple. Custodi.anLaboratory: L K Date=! U/&-' /&2 ri" Telephoned to: on By 8

SAMPLE RECEIPT & REVIEW FORM 0 PM ma onl Vlient: SDGlARCOCIWork Order. 1_ýS5D), t6 rlleRecevedjPN(A) Review (ensureaca-coaif emts are reslved prior to signing): tReceived B: 7! Sample Receipt Criteria Comments/Qualirzers (Required for Non-Conforming It ) Shipping containers received intact Cicle Applicable: seals broken damaged container leaking contai otber (describe) and sealed? Samples requiring cold Circle Coolant I ice bags blue ice d none other describe) 2 preservation within (4 +1-2 C)? Record preservation method. Chain of custody documents included with shipment? / 4 Sample containers intact and Circle Applicable: seals brken cotainer leaking container other (descrie) ,seated? Samples requiring chemical samplc IDe. 1s fected and observed pH: preservation at prprpcnw VOA vials free of headspace Sme ID' containers affected. (defined as < mnnm bubble)? Are Encore containers present? 7 (If yes, immediately deliver to VOA laboratory), 9 Samples received within holding I's and ss affected: time? Sample ID's on COC match ID's Sample ID's and containers affected: Date & time on COC match e smle ID's affect- & time on bottles? Number of containers eceived Sample O's afectei .match -number nd" ted on COC? COC form is perly signed in relinquish received sections? Air ill.Tracking #'s, & d.itional Comments a RSO RAD Receipt # set -*f > x2 area background is observed on samples identified as 'non-Suspected Hazard Information 3 regulated/non-radioactivec, contact the Radiation Safety group for further ad 'investigation. 'diological Classification? Maximum Counts Observed*: PCB Regulated? 1h"pped as DOT Hazardous Material? If yes, contact Waste Hazard Class Shipped: Manager or ESH Manager. I UN#: R egulated as a Foreign Soil? PM (or PMA) review of Hazard classification: initials Date:

Z.

0 I

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 reporti ng 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. PO Box 30712 Charleston, SC 29417 2040 Savage Road Charleston, SC 29407 8434,5&.8171 843.7.1178 11

RADIOLOGICAL ANALYSIS 12

Radiochemistry Case Narrative Connecticut Yankee Atomic Power Co. (YANK) Work Order 178151 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 597843 597815 597813 Sample ID 178151003 178151012 178151013 1201251176 1201251177 1201251178 1201251179 Client ID 9527-0006-002F 9527-0006-01 IF 9527-0006-011 FS Method Blank (MB) 178150004(9527-0005-005F) Sample Duplicate (DUP) 178150004(9527-0005-005F) Matrix Spike (MS) Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-01 I REV# 14. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solutionms) 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. 1.3

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: 178150004 (9527-0005-005F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Manual Integration No manual integrations were performed on data in this batch. Additional Comments The Cm-242 blank result is greater than the MDA. but less than the detection limit. The sample and the duplicate. 120125 1177 (9527-0005-005F), did not meet the relative percent difference requirement for Cm-242, however they do meet the relative error ratio requirement with a value of 1.71. Qualifier information Manual qualifiers were not required. Method/Analysis Information 14

Product: Alphaspec Pu, Solid-ALL FSS Analytical Method: DOE EML HASL-300, Pu-I I -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 597851 597815 597813 Sample ID 178151003 178151012 178151013 1201251200 1201251201 1201251202 1201251203 Client ID 9527-0006-002F 9527-0006-011F 9527-0006-011 FS Method Blank (MB) 178150004(9527-0005-005F) Sample Duplicate (DUP) 178150004(9527-0005-005F) Matrix Spike (MS) Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-01 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 (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: 178 150004 (9527-0005-005F). QC Information All of the QC samples met the required acceptance limits. 15

Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Manual Integration No manual integrations were performed on data in this batch. Additional Comments Additional comments were not required for this sample set. Qualifier information Manual qualifiers were not required. Method/Analysis Information Product: Liquid Scint Pu241, Solid-ALL FSS Analytical Method: DOE EML HASL-300. Pu-I I-RC Modified Prep Method: Ash Soil Prep Dry Soil Prep GL-RAD-A-021 Method: Dry Soil Prep Analytical Batch Number: 597852 Prep Batch Number: 597815 Dry Soil Prep GL-RAD-A-021 Batch Number: 597813 16

Sample ID 178151003 178151012 178151013 1201251204 1201251205 1201251206 1201251207 Client ID 9527-0006-002F 9527-0006-01 IF 9527-0006-01 IFS Method Blank (MB) 178150004(9527-0005-005F) Sample Duplicate (DUP) 178150004(9527-0005-005F) Matrix Spike (MS) Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-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 (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: 178150004 (9527-0005-005F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation 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 178151001 178151002 178151003 178151004 178151005 178151006 178151007 178151008 178151009 178151010 178151011 178151012 178151013 178151014 178151015 178151016 1201252581 1201252582 1201252583 Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived EML HASL 300, 4.5.2.3 Dry Soil Prep 598455 597813 Client ID 9527-0006-00 1F 9527-0006-00IFS 9527-0006-002F 9527-0006-003F 9527-0006-004F 9527-0006-005F 9527-0006-006F 9527-0006-007F 9527-0006-008F 9527-0006-009F 9527-0006-01 OF 9527-0006-01 IF 9527-0006-011 FS 9527-0006-012F 9527-0006-013F 9527-0006-014F Method Blank (MB) 178151 00](9527-0006-001 F) Sample Duplicate (DUP) Laboratory Control Sample (LCS) 18

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-013 REV# 13. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (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: 178151001 (9527-0006-00 IF). 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. 19

Qualifier information Qualifier UI Reason Analyte Data rejected due to high counting uncertainty. Cobalt-60 U' UI UI Data rejected due to high peak-width. Data rejected due to interference. Data rejected due to low abundance. Cesium-134 Europium-155 Bismuth-212 Cesium-134 Cobalt-60 Americium-241 Sample 178151010 178151012 178151009 178151005 178151011 178151003 178151007 178151008 178151009 178151015 178151007 178151008 1201252582 U' Data rejected due to no valid peak. 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, Sr90, solid-ALL FSS EPA 905.0 Modified Ash Soil Prep Dry Soil Prep 597867 597815 597813 20

Sample ID Client ID 178151003 9527-0006-002F 178151012 9527-0006-01 IF 178151013 9527-0006-011 FS 1201251237 Method Blank (MB) 1201251238 178150004(9527-0005-005F) Sample Duplicate (DUP) 1201251239 178150004(9527-0005-005F) Matrix Spike (MS) 1201251240 Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-004 REV# 10. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (QC) Information: Blank Information The blank volume is representative of the sample volume in this batch. 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 178151012 (9527-0006-01 IF) was recounted to verify sample result. Second count being reported. Chemical Recoveries All chemical recoveries meet the required acceptance limits for this sample set. 21

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 Samples 1201251238 (9527-0005-005F) and 178151003 (9527-0006-002F) were verified by recounting at least five days from the separation date. This package version contains revised Sr results from the second count data for 178151012 (9527-0006-01 IF). Qualifier information Manual qualifiers were not required. Method/Analvsis Information Product: Liquid Scint Tc99, Solid-ALL FSS Analytical Method: Analytical Batch Number: Sample ID 178151003 178151012 178151013 1201254111 1201254112 1201254113 1201254114 DOE EML HASL-300, Tc-02-RC Modified 599130 Client ID 9527-0006-002F 9527-0006-01 IF 9527-0006-011 FS Method Blank (MB) 178150004(9527-0005-005F) Sample Duplicate (DUP) 178150004(9527-0005-005F) Matrix Spike (MS) Laboratory Control Sample (LCS) SOP Reference Procedure for preparation. analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-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 22

All counting sources were prepared in the same geometry as the calibration standards. Quality Control (0C) Information: Blank Information The blank volume is representative of the sample volumes in this batch. Designated QC The following sample was used for QC: 178150004 (9527-0005-005F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis Samples were recounted due to spectral interference. Samples 17815 1003 (9527-0006-002F), 178151012 (9527-0006-01 IF) and 17815 1013 (9527-0006-01 IFS) were reprepped due to low/high carrier/tracer yield. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. Qualifier information Manual qualifiers were not required. Method/Analysis Information 23

Product: Liquid Scint Fe55, Solid-ALL FSS Analytical Method: DOE RESL Fe-I, 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 597832 597815 597813 Sample ID 178151003 178151012 178151013 1201251144 1201251145 1201251146 1201251147 Client ID 9527-0006-002F 9527-0006-01 IF 9527-0006-011 FS Method Blank (MB) 178150004(9527-0005-005F) Sample Duplicate (DUP) 178150004(9527-0005-005F) Matrix Spike (MS) Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-040 REV# 3. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (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: 178150004 (9527-0005-005F). QC Information All of the QC samples met the required acceptance limits. 24

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. Gualifier information Manual qualifiers were not required. Method/Analysis Information Product: Liquid Scint Ni63, Solid-ALL FSS Analytical Method: DOE RESL Ni-l, 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 597834 597815 597813 Sample [D 178151003 178 151012 i78151013 1201251149 1201251150 1201251151 1201251152 Client ID 9527-0006-002F 9527-0006-011F 9527-0006-011 FS Method Blank (MB) 178150004(9527-0005-005F) Sample Duplicate (DUP) 178150004(9527-0005-005F) Matrix Spike (MS) Laboratory Control Sample (LCS) 25

SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-022 REV# 8. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Quality Control (QC) Information: Blank Information The blank volume is representative of the sample volume in this batch. Designated QC The following sample was used for QC: 178150004 (9527-0005-005F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. 26

Qualifier information Manual qualifiers were not required. Method/Analysis Information Product: LSC, Tritium Dist, Solid - 3 pCi/g Analytical Method: Analytical Batch Number: Sample ID 178151003 178151012 178151013 1201251159 1201251160 1201251161 1201251162 EPA 906.0 Modified 597837 Client ID 9527-0006-002F 9527-0006-01 IF 9527-0006-011 FS Method Blank (MB) 178151003(9527-0006-002F) Sample Duplicate (DUP) 178151003(9527-0006-002F) Matrix Spike (MS) Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-002 REV# 13. Calibration Information: Calibration Information All initial and continuing calibration requirements have been met. Standards Information Standard solution(s) for these analyses are NIST traceable and used before the expiration date(s). Sample Geometry All counting sources were prepared in the same geometry as the calibration standards. Oualitv 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: 178151003 (9527-0006-002F). QC Information All of the QC samples met the required acceptance limits. 27

Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis Samples were recounted due to low/high recovery. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. Oualifier information Manual qualifiers were not required. Method/Analysis Information Product: Liquid Scint C14, Solid AII,FSS Analytical Method: Analytical Batch Number: Sample ID 178151003 178151012 178151013 1201251163 1201251164 1201251165 1201251166 EPA EERF C-0 IModified 597838 Client ID 9527-0006-002F 9527-0006-01 IF 9527-0006-011 FS Method Blank (MB) 178150004(9527-0005-005F) Sample Duplicate (DUP) 178150004(9527-0005-005F) Matrix Spike (MS) Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-003 REV# 8. 28

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: 178150004 (9527-0005-005F). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. Qualifier information Manual qualifiers were not required. Certification Statement Where the analytical method has been performed under NELAP certification, the analysis has met all 29

of the requirements of the NELAC standard unless otherwise noted in the analytical case narrative. Review Validation: GEL requires all analytical data to be verified by a qualified data validator. In addition, all data designated for CLP or CLP-like packaging will receive a third level validation upon completion of the data package. The following data validator verified the information presented in this case narrative: Reviewer/Date: \\-J 1 l~i j V//V/)- 20-30

SAMPLE DATA

SUMMARY

31

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report for YANKOO 1 Connecticut Yankee Atomic Power Co. Client SDG: MSR#06-1583 GEL Work Order: 178151 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 di:tected 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 wc ight basis except where prohibited by the analytical procedure. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the Certificate of Analysis. This data report has been prepared and reviewed in accordance with GEL Laboratories LLC standa~rd oerating procedures. Please direct any questions to your Project Manager, Cheryl Jones. Reviewed by / f 32

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 0(424

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Client Sample ID: 9527-0006-OOIF Proiect: YANK01204 Sample ID: 178151001 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 19-DEC-06 Receive Date: 21-DEC-06 Collector: Client Moisture: 18.2% 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 0,920 +1- -0.233 Americium-241 U -0.0188 +1-0.0446 Bismuth-212 0.673 +/--0.460 Bismuth-214 0.845 +/--0.148 Cesium-134 U 0.0515 +/-A).0894 Cesium-137 1.22 +/--0.l1l Cobalt-60 0.073 +/--0.0464 guropium-152 U -0.035 +/-0.0863 guropium-154 U 0.181 +/--0.107 Europium-155 U 0.0759 +/-(1.0764 Lead-212 0.957 +/--0.0943 Lead-214 0.855 +/-,0.162 Manganese-54 U -0.0065 +/-0.0354 Niobium-94 U -0.0201 +/-(1.0327 Potassium-40 9.02 +,'-1.25 Radium-226 0.845 +/-.0.148 Silver-108m U 0.0454 +/-(.0332 Thallium-208 0.307 +1-(.0608 0.0955 0.0386 0.253 0.0624 0.0368 0.0289 0.0274 0.0732 0.110 0.0692 0.0398 0.0596 0.0284 0.0254 0.260 0.0624 0.0308 0.0297 +/-0.233 +/-0.0446 +/-0.460 +/-0.148 +/-0.0894 +/-0.111 +/-0.0464 +/-0.0863 +/-0.107 +/-0.0764 +/-0.0943 +/-0.162 +/-0.0354 +/-0.0327 +/-1.25 +1-0.148 +/-0.0332 +/-0.0608 0.213 0.0803 0.547 0.134 0.0797 0.063 0.063 0.156 0.242 0.144 0.0837 0.126 0.0624 0.0555 0.604 0.134 0.0653 0.0641 pCi/g pci/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pci/g pci/g pCilg pCi/g pCilg pCi/g pCi/g pcilg pCi/g JPHI 12126/06 1502 598455 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 12/21/06 1245 597813 The following Analytical Methods were performed Method Description EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside af specified acceptance criteria 33

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample tD: 9527-0006-OOIF Project: YANK01204 Sample ID: 178151001 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

• • Analyte is a surrogate compound Result is less than value reported Result is greater than value reported A

The TIC is a suspected aldol-condensation product B 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 o i the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sampl, concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected abov(: the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected aaove the MDL, MDA, or LOD. UI Gamma Spectroscopy-Uncertain identificztion X Consult Case Narrative, Data Summary pad age, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compaund 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. 34

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

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Client Sample I'D: Sample [D: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006--OOIFS 178151002 TS 19-DEC-06 21-DEC-06 Client 17.9% 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 1.10 +/--0.363 Americium-241 U 0.0329 +l-4).0546 Bismuth-212 U 0.745 +/--0.384 Bismuth-214 0.711 +/--0.174 Cesium-134 U 0.0519 +/-14.0668 Cesium-137 1.22 +4--0.116 Cobalt-60 U 0.0127 +/-41.0507 Europium-152 U 0.103 +4-0.113 Europium-154 U 0.041 +1--0.135 Europium-155 U 0.115 +/-41.0933 Lead-212 0.884 +/-0.136 Lead-214 0.916 +/--0.182 Manganese-54 U -0.0165 +/-41.0461 Niobium-94 U -0.0035 +J-(.0378 Potassium-40 8.85 +,-1.39 Radium-226 0.711 +/-0.174 Silver-108m U 0.0277 +/-4!.0363 Thallium-208 0.315 +/-(4.0901 0.136 0.0469 0.366 0.0703 0.0425 0.0382 0.0432 0.0986 0.116 0.0803 0.0707 0.0652 0.0363 0.0311 0.401 0.0703 0.033 0.0355 +/-0.363 +/-0.0546 +/-0.384 +/-0.174 +/-0.0668 +/-0.116 +/-0.0507 +/-0.113 +/-0.135 +/-0.0933 +/-0.136 +/-0.182 +/-0.0461 +/-0.0378 +1-1.39 +/-0.174 +/-0.0363 +/-0.0901 0.295 0.0972 0.774 0.150 0.0913 0.0818 0.0946 0.207 0.255 0.167 0.146 0.138 0.0784 0.0671 0.886 0.150 0.0699 0.076 pCi/g pCilg 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 JPH 1 12/26/06 1503 598455 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 12/21/06 1245 597813 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside of specified acceptance criteria Analyte is a surrogate compound 35

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-OOIFS Project: YANK01204 Sample ID: 178151002 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd 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 ND Analyte concentration is not detected abovw the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected a-ove the MDL, MDA, or LOD. 111 Gamma Spectroscopy--Uncertain identificz tion X Consult Case Narrative, Data Summary pack age, or Project Manager concerning this qualifier Y QC Samples were not spiked with this comp)und 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. 36

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd

Contact:

Project: East Hampton, Connecticut 06424 Mr. Jack McCarthy Soils PO# 002332 Report Date: January 9, 2007 Client Sample ID: Sample 1D: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006--002F 178151003 TS 19-DEC-06 21-DEC-06 Client 17.8% Project: Client ID: Vol. Recv.: YANK01204 YANKOOI Parameter Qualifier Result Unce-tainty LC TPU IMDA Units DF Analyst Date Time Batch Mtd Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U -0.0517 Curium-242 U 0.0631 Curium-243/244 U 0.100 Alphaspec Pu, Solid-ALL FSS Plutonium-238 U -0.0331 Plutonium-239/240 U 0.0454 Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U 15.2 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.985 Americium-241 U 0.025 Bismuth-212 UI 0.00 Bismuth-214 0.881 Cesium-134 U 0.0377 Cesium-137 0.867 Cobalt-60 U 0.0425 Europium-152 U 0.0249 Europium-154 U 0.00526 Europium-155 U 0.0948 Lead-212 0.892 Lead-214 0.923 Manganese-54 U 0.00939 Niobium-94 U -0.00651 Potassium--40 8.76 Radium-226 0.881 Silver-108m U -0.0189 Thallium-208 0.298 Rad Gas Flow Proportional Counting GFPC. Sr9O. solid-ALL FSS Strontium-90 0.0903 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi/g Tritium U -0.325 +1-(,.0528 +/-(,.0866 +/-0.132 0.0436 0.0318 0.0755 +/-0.0528 +/-0.0869 +/-0.132 +/-(.0324 0.0618 +/-0.0326 +/-0.124 0.0817 +/-0.125 +)-12.6 10.1 +J-12.8 +/-).195 +1-0 0361 +/-).249 +/-).114 +/-0 0334 +1-0 0779 +/-0 0361 +/-0 0689 +/--4).101 +/-0. 0738 +/-0.0742 +/-4).120 q/-0. 0305 +/--0.3253 +/-0.990 +/-(1.114 4-0. )221 +-0.1)587 0.0715 0.0324 0.250 0.0397 0.0309 0.0262 0.0301 0.0596 0.0739 0.0469 0.0315 0.0411 0.0232 0.0208 0.222 0.0397 0.0183 0.0243 +/-0.195 +/-0.0361 +/-0.249 +/-0.114 +/-0.0334 +/-0.0779 +/-0.0361 +/-0.0689 +/-0.101 +/-0.0738 +/-0.0742 +/-0.120 +/-0.0305 +/-0.0253 +/-0.990 +/-0.114 +/-0.0221 +/-0.0587 0.153 0.131 0.217 0.217 0.257 21.0 0.158 0.067 0.530 0.0858 0.0662 0.0561 0.0662 0.126 0.164 0.0979 0.066 0.0871 0.0503 0.045 0.504 0.0858 0.0392 0.0519 0.0402 2.01 pCi/g pCilg pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g 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 JASI 12/26/06 0908 597843 1 JASI 12127/06 1458 597851 2 JASI 12/27/06 2333 597852 3 JPH1 12/26/06 1503 598455 4 KSDI 12/28106 1724 597867 5 AXD2 12/28/06 2359 597837 7 41-0.0279 0.0189 +1-0.0288 +/-1.10 0.943 +/-1.10 37

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

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Client Sample ID: Sample ID: 9527-0006-002F 178151003 Proiect: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Liquid Scintillation Analysis Liquid Scint C4, Solid AIFSS Carbon-14 U 0.0819 Liquid Scint Fe5, Solid-ALL FSS Iron-55 U -7.48 Liquid Scirn Ni63, Solid-ALL FSS Nickel-63 U -2.84 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.0365 +/-(.0677 0.0557 +/-0.0677 +,-14.8 12.0 +/-14.8 +)-12.0 10.2 +/-12.0 0.113 25.1 21.1 0.433 pCilg pCi/g pCi/g AXD2 12/25/06 0941 597838 9 MXPI 01/03/07 1431 597832 10 MXPI 12/30/06 2043 597834 11 KXRl 01/03/07 1603 599130 12 +/- 0.254 0.213 +/-0.254 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 12/21/06 1245 597813 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC b' lodified 2 DOE EML HASL-300, Pu-I 1-RC Madified 3 DOE EML HASL-300, Pu-1I 1-RC Modified 4 EML HASL 300, 4.5.2.3 5 EPA 905.0 Modified 6 EPA 905.0 Modified 7 EPA 906.0 Modified 8 EPA 906.0 Modified 9 EPA EERF C-01 Modified 10 DOE RESL Fe-1, Modified II DOE RESL Ni-l, Modified 12 DOE EML HASL-300, Tc-02-RC Mo dified 13 DOE EML HASL-300. Tc-02-RC Mo idified 14 DOE EML HASL-300, Tc-02-RC Modified 15 DOE EML HASL-300, Tc-02-RC Modified Surrogate/Tracer recovery Test Recovery % Acceptable Limits Americium-243 Plutonium-242 Alphaspec Am241, Cm, Solid ALL Alphaspec Pu, Solid-ALL FSS 104 87 (15%-125%) (15%-125%) 38

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-002F Project: YANK01204 Sample ID: 178151003 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Unceitainty LC TPU MIDA Units DF Analyst Date Time Batch Mtd Strontium-90 GFPC, Sr9O, solid-AL - FSS 80 (25%-125%) Carrier/Tracer Recovery GFPC, Sr9O, solid-AL. FSS 80 (25%-125%) Nickel-63 Liquid Scint Ni63, Soli I-ALL FS 80 (25%-125%) Carrier/Tracer Recovery Liquid Scint Ni63, Solii-ALL FS 80 (25%-125%) Technetium-99 Liquid Scint Tc99, Soli I-ALL FS 43 (15%-125%) Carrier/Tracer Recovery Liquid Scint Tc99, Soli I-ALL FS 43 (15%-125%) Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside )f specified acceptance criteria Analyte is a surrogate compound Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol-condensation r roduct B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer Lecovery is low C Analyte has been confirmed by GC/MS anal,,sis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD. U! Gamma Spectroscopy-Uncertain identifica ion X Consult Case Narrative, Data Summary pack ige, 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 ýxceeded The above sample is reported on a dry weight basih. 39

GEL LABORATORIES LLC 2040 Savage Road Chadeston SC 29407 - (843) 556-8171 - www.gelcom Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd

Contact:

Project: East Hampton, Connecticut 0(424 Mr. Jack McCarthy Soils PO# 002332 Report Date: January 9, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006-003F 178151004 TS 19-DEC-06 21-DEC-06 Client 16.1% Project: YANK01204 Client ID: YANK001 VoL Recv.: Parameter Qualifier Result Ui Rad Gamma Spec Analysis Gamma.Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.33 Americium-241 U 0.0552 Bismuth-212 1.33 Bismuth-214 0.884 Cesium-134 U 0.0706 Cesium-137 0.271 Cobalt-60 U 0.0311 Europium-152 U -0.0159 Europium-154 U -0.0223 Europium-155 U 0.0507 Lead-212 0.959 Lead-2l4 0.842 Manganese-54 U 0.018 Niobium-94 U -0.0152 Potassium-40 9.81 Radium-226 0.884 Silver-108m U 0.00597 Thallium-208 0.274 nce -tainty LC TPU MDA Units DF Analyst Date Trme Batch Mtd +/--0.302 +/-1.0512 +/--0.495 +/-0.161 +/-,0.096 +/-(.0901 +/-(,.0475 +/-(.0969 +/-0.122 +/-0.124 +/-0.107 +/-0.161 +/-(.0488 +/-C.0347 +)-l.33 +/-0.161 /--C.0346 +1-0.114 0.119 0.043 0.240 0.0613 0.0462 0.0363 0.0426 0.0807 0.0961 0.0727 0.0523 0.0615 0.0383 0.0283 0.293 0.0613 0.0292 0.0306 +/-0.302 +/-0.0512 +/-0.495 +/-0.161 +/-0.096 +/-0.0901 +/-0.0475 +/-0.0969 +/-0.122 +/-0.124 +/-0.107 +/-0.161 +/-0.0488 +/-0.0347 +/-1.33 +/-0.161 +/-0.0346 +/-0.114 0.264 0.0897 0.530 0.133 0.0999 0.079 0.0954 0.173 0.220 0.152 0.110 0.131 0.0834 0.0624 0.689 0.133 0.0629 0.0669 pCi/g pCi/g pCilg pCi/g pCi/g pCi/g pCi/g pCi/g pCi6g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g JPHI 12/26/06 1503 598455 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 12/21/06 1245 597813 The following Analytical Methods were performed Method Description EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows A quality control analyte recovery is outside cf specified acceptance criteria Analyte is a surrogate compound 40

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 0(424 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-003F Project: YANK01204 Sample ID: 178151004 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd 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 o i the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Samph: concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected abov: the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected a )ove the MDL, MDA, or LOD. UI Gamma Spectroscopy--Uncertain identificz Lion X Consult Case Narrative, Data Summary pack age, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compiund A RPD of sample and duplicate evaluated using +/-RE. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basi ;. 41

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

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: Parameter Qualifier Result UL Rad Gamma Spec Analysis Gamma,nSolid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.636 Americium-241 U 0.0372 Bismuth-212 0.728 Bismuth-214 0.691 Cesium-134 UI 0.00 Cesium-137 2.71 Cobalt-60 0.128 Europium-152 U 0.0473 Europium-!54 U -0.0218 Europium-t55 U 0.0359 A Lead-212 0.580 Lead-214 0.668 Manganese-54 U -0.00861 Niobium-94 U 0.0053 A Potassium-40 8.75 Radium-226 0.691 Silver-108m U1.910E-05 Thallium-208 0.222 9527-0006-004F 178151005 TS 19-DEC-06 21-DEC-06 Client 9.66% Proiect: YANK01204 Client ID: YANKOOI Vol. Recv.: nces tainty LC TPU MDA Units DF Analyst Date Time Batch Mtd +/-0.178 /-0.0865 +/-0.264 +/-0.104 4/-0.0419 +/-0.251 +/-0.0335 ÷1-0.0535 ,1-0.0515 1/-0 0492 -/-0.0721 +/-3.108 ,/-00178 ÷(--0 0157 +/- ).924 +/-).104 +/- ).020 +/- ).047 0.0472 0.0506 0.101 0.0309 0.0158 0.0167 0.0168 0.0483 0.0422 0.0433 0.0256 0.0312 0.0144 0.014 0.129 0.0309 0.0169 0.0157 +/-0.178 +1-0.0865 +1-0.264 +/-0.104 +/-0.0419 +1-0.251 +/-0.0335 +1-0.0535 +1-0.0515 +/-0.0492 +/-0.0721 +/-0.108 +/-0.0178 +/-0.0157 +/-0.924 +/-0.104 +/-0.020 +1-0.047 0.103 0.105 0.218 0.0655 0.0341 0.0356 0.0369 0.101 0.0933 0.0896 0.0532 0.0654 0.0311 0.0299 0.292 0.0655 0.0353 0.0333 pCi/g pCi/g pCi/g pCi/g pCi/g pCilg pCi/g pCi/g pCi/g pCilg pCi/g pCilg pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g JPHI 12/26/06 1605 598455 1 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 IMB1 12/21/06 1245 597813 The following Analytical Methods were performed Method Description EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows A quality control analyte recovery is outside cf specified acceptance criteria Analyte is a surrogate compound 42

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06,124 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-004F Project: YANK01204 Sample ID: 178151005 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol-condensation Froduct 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 anal: isis 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. Samphi concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected axove the MDL, MDA, or LOD. UI Gamma Spectroscopy--Uncertain identifice tion X Consult Case Narrative, Data Summary pack age, or Project Manager concerning this qualifier Y QC Samples were not spiked with this comp)und A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded The above sample is reported on a dry weight basis. 43

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

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9,2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006-005F 178151006 TS 19-DEC-06 21-DEC-06 Client 13.7% Project: Client lID: Vol. Recv.: YANK01204 YANK00l Parameter Qualifier Result Unceri ainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Ganuna Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.895 +/-0.197 Americium-241 U 0.0595 +/-0.D653 Bismuth-212 0.609 +/-11.315 Bismuth-214 0.830 +/-0. 117 Cesium-134 U 0.0295 +/-0.0344 Cesium-137 1.54 +/-().150 Cobalt-60 U 0.0266 +/-0.0411 Europium-152 U -0.0316 +/-0.)659 Europium-154 U 0.0703 +/-0. D678 Europium-155 U 0.0839 +1-0.1784 Lead-212 0.941 +/-4).101 Lead-214 0.916 +/-41.136 Manganese-54 U 0.0319 +/-0.0268 Niobium-94 U 0.00287 +/-05.206 Potassium-40 9.73 +/-.1.02 Radium-226 0.830 +/-41. 117 Silver-108m U 0.0265 +/-0.3239 Thallium-208 0.252 +/-0.0595 0.0717 0.0569 0.135 0.0357 0.0243 0.0198 0.029 0.0542 0.0621 0.0511 0.0305 0.0397 0.0157 0.0179 0.182 0.0357 0.0212 0.0191 +4-0.197 +/-0.0653 +/-0.315 +/-0.117 +/-0.0344 +/-0.150 +/-0.0411 +/-0.0659 +/-0.0678 +1-0.0784 +/-0.101 +/-0.136 +/-0.0268 +/-0.0206 +/-1.02 +/-0.117 +/-0.0239 +/-0.0595 0.154 0.117 0.289 0.0757 0.0515 0.0421 0.0621 0.113 0.135 0.106 0.0632 0.0829 0.0341 0.0381 0.404 0.0757 0.0442 0.0405 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 pCilg pCi/g pCi/g JPHI 12/26/06 1606 598455 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 12121106 1245 597813 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 cf specified acceptance criteria Analyte is a surrogate compound 44

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 064.24 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-005F Project: YANK01204 Sample ID: 178151006 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol-condensation pi oduct B Target analyte was detected in the associated Aank BD Results are either below the MDC or tracer rncovery is low C Analyte has been confirmed by GC/MS analy ;is D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated NIA Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD. UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary pack, ge, 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 :xceeded The above sample is reported on a dry weight basis. 45

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

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006-006F 178151007 TS 19-DEC-06 2 1-DEC-06 Client 14.2% Project: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncei tainty Red Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.828 +1-0.152 Americium-241 U 0.0171 +/--C.0716 Bismuth-212 0.699 +/-0.271 Bismuth-214 0.825 +/-0.0954 Cesium-134 UI 0.00 +/4-.0382 Cesium-137 0.901 +/-0.0634 Cobalt-60 UI 0.00 +/-0.0226 Europium-152 U 0.0417 +/-0.0533 Europium-154 U -0.0425 +/-0.0728 Europium-155 U 0.072 +/-0.0603 Lead-212 0.898 +/-0.0652 Lead-214 1,07 +/-00902 Manganese-54 U -0.006 +/-).021 Niobium-94 U 0.0281 +/-0 0182 Potassium-40 10.0 +/-).738 Radium-226 0.825 +/-0 0954 Silver-108m U 0.00773 +/-00184 Thallium-208 0.256 +/-0 0473 LC TPU MDA Units DF Analyst Date Time Batch Mtd 0.0501 0.0641 0.118 0,0324 0.0212 0.0159 0.0222 0.047 0.0485 0.0541 0.0258 0.0303 0.0171 0.0168 0.143 0.0324 0.0157 0.0162 +/-0.152 +/-0.0716 +/-0.271 +/-0.0954 +/-0.0382 +/-0.0634 +/-0.0226 +/-0.0533 +/-0,0728 +/-0,0603 +/-0.0652 +/-0.0902 +/-0.021 +/-0.0182 +/-0.738 +/-0.0954 +/-0.0184 +/-0.0473 0.107 0.132 0.250 0.0679 0.0445 0.0335 0.047 0.0977 0.104 0.111 0.0533 0.0632 0.0361 0.0352 0.312 0.0679 0.0328 0,034 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g JPH1 12126/06 1606 598455 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 12/21/06 1245 597813 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 c f specified acceptance criteria Analyte is a surrogate compound 46

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Poaer Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527--0006--006F Proiect: YANK01204 Sample ID: 178151007 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncert ainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol-condensation pi oduct B Target analyte was detected in the associated Alank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD. UT Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compcund A RPD of sample and duplicate evaluated using +-/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was,:xceeded The above sample is reported on a dry weight basis. 47

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

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006-007F 178151008 TS 19-DEC-06 21-DEC-06 Client 9.02% Proiect: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gamma Spec Analysis Gamma, Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 1.06 +/-('.217 Americium-241 U 0.0701 +/-('.l 16 Bismuth-212 0.928 +/-('.310 Bismuth-214 0.880 +/-(,.136 Cesium-134 UI 0.00 +/-0.')337 Cesium-137 0.650 +/-0. )759 Cobalt-60 UT 0.00 +/-(.034 Europium-152 U -0.00954 +/-0.,)874 Europium-154 U -0.00422 +/-0.,)792 Europium-155 U 0.0676 +/-0.)737 Lead-212 0.973 +/-(.105 Lead-214 1.09 +/-(.142 Manganese-54 U 0.012 +/-0.,)235 Niobium-94 U 0.00626 +4-0.0 239 Potassium-40 8.71 +/-1.01 Radium-226 0.880 +/-(.136 Silver-108m U 0.000166 +/-0.'1226 Thallium-208 0.304 +/-0.0556 0.0685 0.096 0.140 0.0384 0.0257 0.0222 0.0252 0.0582 0.0563 0.0676 0.0328 0.0429 0.0211 0.0178 0.153 0.0384 0.0196 0.0202 +/-0.217 +/-0.116 +/-0.310 +/-0.136 +/-0.0337 +/-0.0759 +/-0.034 +/-0.0874 +/-0.0792 +/-0.0737 +/-0.105 +/-0.142 +/-0.0235 +/-0.0239 +/-1.01 +/-0.136 +/-0.0226 +1-0.0556 0.137 0.192 0.279 0.0768 0.0513 0.0444 0.0504 0.116 0.113 0.135 0.0655 0.0858 0.0423 0.0356 0.306 0.0768 0.0393 0.0405 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g JPH1 12r26/06 1611 598455 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 I 12/21/06 1245 597813 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 or specified acceptance criteria Analyte is a surrogate compound 48

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 0M 424 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-007F Project: YANK01204 Sample ID: 178151008 Client ID: YANK001 Vol. Recv.: Parameter Quatlfier Result Uncer~tainty LC TPU MD)A Units DF Analyst Date Time Batch Mtd 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 anal: isis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD. UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was --xceeded The above sample is reported on a dry weight basi:;. 49

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 064 24

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9,2007 Client Sample ID: Sample ED: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006-008F 178151009 TS 19-DEC-06 21-DEC-06 Client 4.63% Project: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Unceri ainty 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 0.606 +/-0-145 Americium-241 U 0.0149 +/-0.069 Bismuth-212 0.645 +1-4).247 Bismuth-214 0.558 +/-0.0991 Cesium-134 U1 0.00 +/-0.D279 Cesium-137 0.903 +/-0.3895 Cobalt-60 UI 0.00 +/-0.3256 Europium-152 U 0.0016 +/-0.3656 Europium-154 U -0.0213 +/-0.3521 Europium-155 U 0.0627 +/-0.)592 Lead-212 0.554 +1-41.067 Lead-214 0.632 +/-11.093 Manganese-54 U 0.0235 +/-0.3141 Niobium-94 U 0.0276 +/-0.)245 Potassium-40 8.11 +/-4).807 Radium-226 0.558 +/-0.)991 Silver-108m U 0.0126 +/-0.3188 Thallium-208 0.209 +/-0.)433 0.0535 0.0566 0.122 0.032 0.0207 0.0195 0.0139 0.0478 0.0417 0.0476 0.0266 0.0344 0.0127 0.0142 0.119 0.032 0.017 0.0163 +/-0.145 +/-0.069 +/-0.247 +/-0.0991 +/-0.0279 +/-0.0895 +/-0.0256 +/-0.0656 +/-0.0521 +/-0.0592 +/-0.067 +1-0.093 +/-0.0141 +/-0.0245 +/--0.807 +/-0.0991 +/-0.0188 +/-0.0433 0.107 0.113 0.244 0.064 0.0414 0.0389 0.0278 0.0956 0.0833 0.0952 0.0532 0.0687 0.0254 0.0283 0.238 0.064 0.0341 0.0326 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g JPHI 12/26/06 1611 598455 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 12/21/06 1245 597813 The following Analytical Methods were performed Method Description EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside of specified acceptance criteria Analyte is a surrogate compound 50

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 064<4 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-008F Project: YANK01204 Sample ID: 178151009 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertvinty LC TPU MDA Units DF Analyst Date Tune Batch Mtd 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 I lank BD Results are either below the MDC or tracer rccovery is low C Analyte has been confirmed by GC/MS analy riS D Results are reported from a diluted aliquot of i he sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample,:oncentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD. UI Gamma Spectroscopy-Uncertain identificat on X Consult Case Narrative, Data Summary package, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compo md A RPD of sample and duplicate evaluated using./-RL. Concentrations are <5X the RL h Preparation or preservation holding time was c xceeded The above sample is reported on a dry weight basis 51

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

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Project: YANK01204 Client ID: YANK01O Vol. Rccv.: Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006-009F 178151010 TS 19-DEC-06 21-DEC-06 Client 6.87% Parameter Qualifier Result Ur Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.469 Americium-241 U 0.024 Bismuth-212 U 0.350 Bismuth-214 0.609 Cesium-134 U 0.035 Cesium-137 1.69 Cobalt-60 UI 0.00 -t Europium-152 U 0.0145 4 Europium-154 U -0.016 Europium-155 U 0.0286 Lead-212 0.576 Lead-214 0.550 Manganese-54 U 0.00478 Niobiurm-94 U 0.0121 4 Potassium-40 7.21 Radium-226 0.609 Silver-108m U -0.00682 4 Thallium-208 0.171 4 wcer tainty LC TPU MDA Units DF Analyst Date Time Batch Mid +/-3.168 4--0.0364 +/-3.207 +/-).107 4-0.0299 +/-3.113 -/-0.0439 41-0 0697 4/-0 0814 0.0838 4/-0 0814 +/-).106 -/-00283 4-0 0271 +/-).901 +/-).107 0 0231 4/-0 0433 0.0659 0.032 0.207 0.0367 0.0285 0.023 0.0159 0.064 0.0676 0.0554 0.0424 0.0462 0.0214 0.0216 0.236 0.0367 0.020 0.0211 +/-0.168 +/-0.0364 +1-0.207 +/-0.107 +/-0.0299 +/-0.113 +/-0.0439 +/-0.0697 +/-0.0814 +/-0.0838 +/-0.0814 +/-0.106 +/-0.0283 +/-0.0271 +1-0.901 +/-0.107 +/-0.0231 +/-0.0433 0.148 0.0664 0.444 0.0801 0.0617 0.050 0.038 0,135 0.152 0.115 0.088 0.0976 0.047 0.0468 0.535 0.0801 0.0429 0.0458 pCi/g pCi/g pCi/g pCilg pCi/g pCi/g pCi/g pCi/g pCVg pCi/g pci/g pci/g pCi/g pCi/g pCilg pCi/g pCi/g pCi/g JPHI 12/26/06 1721 598455 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 12/21/06 1245 597813 The following Analytical Methods were performed Method Description I EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside of specified acceptance criteria Analyte is a surrogate compound 52

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-009F Project: YANK01204 Sample ID: 178151010 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol-condensation pioduct B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer iecovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected at ove the MDL, MDA, or LOD. UI Gamma Spectroscopy-Uncertain identificajion X Consult Case Narrative, Data Summary packitge, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compc und 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 basi, 53

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.corn Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 064Z4

Contact:

Mr, Jack McCarthy Project: Soils PO# 002332 Report Date: January 9,2007 Client Sample ID: 9527-0006-OIOF Project: YANK01204 Sample ID: 178151011 Client ID: YANK001 Matrix: TS Vol. Recv.: Collect Date: 19-DEC-06 Receive Date: 21-DEC-06 Collector: Client Moisture: 11% Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Tine Batch Mtd Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actirtium-228 0.931 +/-(C.262 Americium-241 U 0.051 4-/-(,.050 Bismuth-212 U 0.303 +1-(..501 Bismuth-214 0.701 44-C.165 Cesium-134 U 0.0476 +/-0.1)626 Cesium-137 3.93 +/--(.174 Cobalt-60 0.141 +/-0.,)761 Europium-152 U 0.000322 +/-(,.105 Europium-154 U 0.124 +/-(A101 Europium-155 UI 0.00 +/-(.124 Lead-212 0.744 +/-(.112 Lead-214 0.810 +/-(,.157 Manganese-54 U 0.0107 +/-0.,)388 Niobium-94 U -0.0187 +1-(,.036 Potassium--40 10.9 +1-1.19 Radium-226 0.701 +/-(.165 Silver-108m U 0.0479 +/-0.0533 Thallium-208 0.253 +/-(.078 0.108 0.0453 0.251 0.0597 0.0423 0.0343 0.031 0.0885 0.0975 0.0674 0.060 0.0585 0.0329 0.029 0,277 0.0597 0.0352 0.0318 +/-0.262 +1-0.050 +f-0.501 +/-0.165 +/-0.0626 +/-0.174 +/-0.0761 +1-0.105 +/-0.101 +/-0.124 +/-0.112 +/-0.157 +/-0.0388 +--0.036 +/-1.19 +4-0.165 +/-0.0533 +--0.078 0.234 0.0935 0.538 0.127 0.0898 0.0731 0.0688 0.185 0.214 0.140 0.124 0.123 0.0706 0.0621 0.623 0.127 0.0736 0.0678 pCilg pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pci/g pCi/g pCilg pCi/g pCi/g pCilg pCi/g pCi/g pCi/g pCi/g pCi/g JPH1 12126106 1721 598455 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 12/21/06 1245 597813 The following Analytical Methods were performed Method Description 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 54

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-010F Project: YANK01204 Sample ID: 178151011 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd

• • Analyte is a surrogate compound Result is less than value reported Result is greater than value reported A

The TIC is a suspected aldol-condensation p roduct B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer :ecovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot ot the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD. U1 Gamma Spectroscopy--Uncertain identificaion X Consult Case Narrative, Data Summary pack ige. 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 e-xceeded The above sample is reported on a dry weight basi:;. 55

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

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006-01IF 178151012 TS 19-DEC-06 21-DEC-06 Client 8.23% Project: Client iD: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU NIDA Units DF Analyst Date Time Batch Mtd Rad Alpha Spec Analysis Alphaspec Am241, Cm, Solid ALL FSS Americium-241 U -0.0873 Curium-242 U 0.129 Curium-243/244 U -0.0173 Alphaspec Pu, Solid-ALL FSS Plutonium-238 U 0.123 Plutonium-239/240 U 0.00127 Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U -1.25 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth +/-00733 +/-).137 0.0785 0.0573 0.121 +1-0.0734 +4-0.144 +/-0.137 +/--).174 0.103 +/-0.174 +/-0.0692 0.0571 +/-0.0692 +1--4.47 3.79 +/-4.47 Waived Actinium-228 0.606 Americium-241 U 0.0131 Bismuth-212 U 0.275 Bismuth-214 0.556 Cesium-134 U 0.00556 Cesium-137 1.01 Cobalt-60 UI 0.00 Europium-152 U -0.0688 Europium-154 U -0,014 Europium-155 U 0.0558 Lead-212 0.581 Lead-214 0.565 Manganese-54 U 0.0271 Niobium-94 U-0.000553 Potassium-40 9.41 Radiutm-226 0.556 Silver-108m U 0.000851 Thallium-208 0.184 Rad Gas Flow Proportional Counting GFPC, S90, solid-ALL FSS Strontium-90 U 0.00367 Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCi/g Tritium U 0.120 +1-0.158 +/-0.0291 +/-41.359 +/-0.D937 +/-0.3247 +/-0.2837 +/-0.2626 +/-0.2629 +/-0.074 +/-0.2457 +/-{.061 +/-(.106 +/-0. )269 +/-0. )223 +1-4,.906 +/-0.-)937 +/-0. 1215 +I-0,)504 0.0614 0.0265 0.168 0,0329 0.0213 0.0195 0.0179 0.0491 0.0608 0.0456 0.028 0.0352 0.0227 0.019 0.189 0.0329 0.0194 0.0181 +/-0.158 +/-0.0291 +/-0.359 +1-0.0937 +/-0.0247 +/-0.0837 +/-0.0626 +/-0.0629 +1-0.074 +/-0.0457 +/-0.061 +1-0.106 +/-0.0269 +/-0.0223 +1-0.906 +/-0.0937 +1-0.0215 +/-0.0504 0.241 0.201 0.326 0.292 0.200 7.84 0.137 0.055 0.363 0.0715 0.0467 0.0423 0.0411 0.104 0.136 0.0949 0.0589 0.0748 0.0491 0.041 0.433 0.0715 0.0412 0.0393 0.0327 2.00 pCi/g pci/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/s pCi/g pCi!5 pCi/g pCilg pCi/g pCi/g pCi/g pCi/g pCi/g pCilg pCi/g pCi/g JAS 1 12/26/06 0908 597843 1 JAS1 12/27/06 1458 597851 2 JASI 12/28/06 0004 597852 3 JPHI 12/26/06 1722 598455 4 KSDI 01/01/07 1946 597867 5 AXD2 12/29/06 0030 597837 7 -+/-0.0179 0.0147 +/-0.0179 +/-1.13 0.939 +/-1.13 56

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Pcwer Address : 362 Injun Hollow Rd East Hampton, Connecticut 064 24

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Client Sample ID: Sample ID: 9527-0006-01IF 178151012 Proiect: YANK01204 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Rad Liquid Scintillation Analysis Liquid Scint C14, Solid AII,FSS Carbon-14 U 0.0737 Liquid Scint FeSS, Solid-ALL FSS Iron-55 U -10.2 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -5.24 Liquid Scint Tc99, Solid-ALL FSS Technetium-99 U -0.164 Uncer ainty LC TPU MDA Units DF Analyst Date Time Batch Mtd +/-0,0665 0.0548 +/-0.0665 0.111 +/--14.5 11.9 +1-14.5 24.8 +/--13.3 11.3 +1-13.3 23.4 pCi/g pCilg pCi/g pCi/g AXD2 12/25/06 1147 597838 9 MXP1 01t03107 1502 597832 10 MXPI 12130/06 2059 597834 It KXR1 01/03/07 1705 599130 12 +/--A).189 0.161 +/-0.189 0.327 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMB1 12/21/06 1245 597813 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Amn-05-RC Modified 2 DOE EML HASL-300, Pu-I 1-RC Modxified 3 DOE EML HASL-300, Pu-1 I-RC Mxlified 4 EML HASL 300,4.5.2.3 5 EPA 905.0 Modified 6 EPA 905.0 Modified 7 EPA 906.0 Modified 8 EPA 906.0 Modified 9 EPA EERF C-0 I Modified 10 DOE RESL Fe-I, Modified II DOE RESL Ni-1, Modified 12 DOE EML HASL-300, Tc-02-RC Modified 13 DOE EML HASL-300, Tc-02-RC Modified 14 DOE EML. HASL-300, Tc-02-RC Modified 15 DOE EML HASL-300, Tc-02-RC Moidified Surrogate/Tracer recovery Test Recovery % Acceptable Limits Americiuni-243 Plutonium-242 Alphaspec Am241, Cm, Solid ALL Alphaspec Pu. Solid-AlL FSS 86 101 (15%-125%) (15%-125%) 57

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.corn Certificate of Analysis Company: Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 0W24 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-01IF Project: YANK01204 Sample ID: 178151012 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Strontium-90 GFPC, SO9O, solid-ALl. FSS 88 (25%-125%) Carrier/Tracer Recovery GFPC, Sr9O, solid-ALl, FSS 88 (25%-125%) Nickel-63 Liquid Scint Ni63, Solic -ALL FS 74 (25%-125%) Carrier/Tracer Recovery Liquid Scint Ni63, Solic-ALL FS 74 (25%-125%) Technetium-99 Liquid Scint Tc99, Solid-ALL FS 55 (15%-125%) Carrier/Tracer Recovery Liquid Scint Tc99, Solid-ALL FS 55 (15%-125%) Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside of specified acceptance criteria Analyte is a surrogate compound Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol-condensation p-oduct B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer jecovery is low C Analyte has been confirmed by GCIMS anal) sis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected at ove the MDL, MDA, or LOD. UI Gamma Spectroscopy-Uncertain identificai ion X Consult Case Narrative, Data Summary pack~tge, or Project Manager concerning this qualifier Y QC Samples were not spiked with this compl und 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 basi,. 58

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

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006-01IFS 178151013 TS 19-DEC-06 21-DEC-06 Client 8.38% Project: Client ID: Vol. Recv.: YANK01204 YANK001 Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Alpha Spec Analysis Alphaspec Am241, Cm, SotidALL FSS Americium-241 U Curium-242 Curium-243/244 U 0.0208 0.269 0.0477 +t-C.129 +/-C.181 +1-C. 125 +/-0. 1976 +/-(.203 0.100 0.0276 0.0845 +/-0.129 4-0.184 +/-0.125 Aiphaspec Pu, Solid-ALL FSS Plutonium-238 U -0.0124 Plutonium-239/240 U 0.00372 Liquid Scint Pu241, Solid-ALL FSS Plutonium-241 U -2.88 Rad Gamma Spec Analysis Gamma,Solid-FSS GAM & ALL FSS 226 Ingrowth Waived Actinium-228 0.535 Americium-241 U 0.00107 Bismuth-212 0.667 Bismuth-214 0.614 Cesium-134 U 0.0344 Cesium-137 0.940 Cobalt-60 U 0.0746 Europium-152 U 0.0168 Europium-154 U 0.0116 Europium-155 U 0.0606 Lead-212 0.501 Lead-214 0.640 Manganese-54 U -0.00292 Niobium-94 U 0.0108 Potassium-40 8.97 Radium-226 0.614 Silver-108m U 0.000135 Thallium-208 0153 Rad Gas Flow Proportional Counting GFPC. Sr90, solid-ALL FSS Strontium-90 U 0.0186 A Rad Liquid Scintillation Analysis LSC, Tritium Dist, Solid - 3 pCilg Tritium U 0.514 0.088 +/-0.0976 0.169 +/-0.203 +/-5.14 4.41 +/-5.14 +/-(,.208 +/-0. )369 +/-0.482 +/-1.106 +/-0.)688 +/-0. )873 +t-0.)588 U/-0. )632 +/-0.1867 +/-0.1582 f-0. 1651 +4-0 127 /4-0.) 269 +/-0.3252 +/--1.09 +/-01.106 +/-0.3247 +/-0.056 0.0909 0.0337 0.194 0.0442 0.0314 0.0256 0.0378 0.0571 0.0736 0.0545 0.0304 0.038 0.0231 0.0232 0.232 0.0442 0.0214 0.0252 +/-0.208 +/-0.0369 +/-0.482 +1-0.106 +/-0.0688 +/-0.0873 +/-0.0588 +/-0.0632 +/-0.0867 +/-0.0582 +/-0.0651 +/-0.127 +/-0.0269 +/-0.0252 +1-1.09 +/-0.106 +/-0.0247 +/-0.056 0.281 0.138 0.250 0.260 0.423 9.12 0.201 0.0703 0.425 0.0961 0.0682 0.0558 0.0828 0.122 0.167 0.114 0.0643 0.0819 0.0511 0.0505 0.536 0.0961 0.0459 0.0545 0.0314 pCi/g pCi/g pCi/g 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 pCi/g pCi/g pCi/g pCi/g JASI 12/26/06 0908 597843 1 JASI 12/27/06 1458 597851 2 JASI 12/28/060035 597852 3 JPHI 12/26/06 1722 598455 4 KSDI 12/28/06 1727 597867 5 AXD2 12/29/06 0102 597837 6 4/-0.0188 0.0146 +/-0.0188 +1--t.5 0.937 +/-1.15 1.99 pCi/g 59

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Contact Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Project: YANK01204 Client ID: YANKOO I Vol. Recv.: Client Sample ID: Sample ID: 9527-0006-01IFS 178151013 Parameter Qualifier Result Rad Liquid Scintillation Analysis Liquid Scint C14, Solid AtlFSS Carbon-14 U 0.0837 Liquid Scint Fe55, Solid-ALL FSS Iron-55 U -2.42 Liquid Scint Ni63, Solid-ALL FSS Nickel-63 U -8.3 Liquid Scim Tc99, Solid-ALL FSS Technetium-99 U -0.0367 Unceitainty LC TPU MDA Units DF Analyst Date Time Batch Mtd +/-0.067 0.0552 +/-0.0671 0.112 +--14.5 11.5 +/-14.5 24.1 +1-I1.9 10.2 +/-11.9 21.1 +/-0.184 0.155 +/-0.184 0.315 pCilg pCilg pCi/g pCi/g AXD2 12/25/06 1351 597838 8 MXPI 01/03/07 1534 597832 9 MXPI 12/30/062116597834 10 KXR1 01/03/07 1808 599130 11 The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 IMBI 12/21/06 1245 597813 The following Analytical Methods were performed Method Description I DOE EML HASL-300, Am-05-RC Modified 2 DOE EML HASL-300, Pu-I I-RC Modified 3 DOE EML HASL-300, Pu-11-RC Modified 4 EML HASL 300,4.5.2.3 5 EPA 905.0 Modified 6 EPA 906.0 Modified 7 EPA 906.0 Modified 8 EPA EERF C-01 Modified 9 DOE RESL Fe-I, Modified 10 DOE RESL Ni-1, Modified 11 DOE EML HASL-300, Tc-02-RC MAdified 12 DOE EML HASL-300, Tc-02-RC MAdified 13 DOE EML HASL-300, Tc-02-RC M Adified 14 DOE EML HASL-300, Tc-02-RC M 3dified Surrogate/Tracer recovery Americium-243 Plutonium-242 Strontium-90 Alphaspec Am241, Cm, Solid ALL Alphaspec Pu, Solid-ALL FSS GFPC, Sr9O. solid-ALI. FSS Recovery % 94 91 89 Acceptable Limits (15%-125%) (15%-125%) (25%-125%) 60

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: January 9, 2007

Contact:

Mr. lack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-011FS Proiect: YANK01204 Sample ID: 178151013 Client ID: YANK001 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DiF Analyst Date Time Batch Mtd Carrier/Fracer Recovery GFPC, Sr9O, solid-ALL, FSS 89 (25%-125%) Nickel-63 Liquid Scint Ni63, SolidI-ALL FS 80 (25%-125%) Carrier/Tracer Recovery Liquid Scint Ni63, Soli I-ALL FS 80 (25%-125%) Technetium-99 Liquid Scint Tc99, Sol, J-ALL FS 57 (15%-125%) Carrier/Tracer Recovery Liquid Scint Tc99, Soli ]-ALL FS 57 (15%-125%) Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside,)f specified acceptance criteria Analyte is a surrogate compound Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol-condensation Froduct 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 anal'.sis 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. Samplc: concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected aoove the MDL, MDA, or LOD. UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative, Data Summary pack age, or Project Manager concerning this qualifier Y QC Samples were not spiked with this comp)und 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

GEL LABORATORIES LLC 2040 Savage -load 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 06414

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006-012F 178151014 TS 19-DEC-06 21-DEC-06 Client 5.7% Project: YANK01204 Client ID: YANK00I 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 0.800 +/-4.224 Americium-241 U 0.0366 +/-0. )461 Bismuth-212 0.689 +/-41.406 Bismuth-214 0.738 +1-0.150 Cesium-134 U 0.0419 +/-0.2303 Cesium-137 1.31 +/---4.173 Cobalt-60 U 0.0458 +/-0.0433 Europium-152 U 0.0393 +/-4.137 Europium-154 U -0.0158 +/-0.101 Europium-155 U -0.00737 +/-0.D667 Lead-212 0.700 +/-0,0971 Lead-214 0.729 44-4).125 Manganese-54 U 0.0508 +1-0.036 Niobium-94 U 0.0041 +1-0.304 Potassium-40 9.40 +1--i.16 Radium-226 0.738 +1-4).150 Silver-108m U -0.0198 +/-0,0307 Thallium-208 0.186 +/-0,0662 0.0783 0.0388 0.243 0.0493 0.0284 0.0298 0.0343 0.074 0.0697 0.0595 0.0373 0.0533 0.0286 0.0272 0.261 0.0493 0.0256 0.0278 +/-0.224 +/-0.0461 +/-0.406 +/-0.150 +/-0.0303 +/-0.173 +/-0.0433 +/-0.137 +/-0.101 +/-0.0667 +/-0.0971 +/-0.125 +/-0.036 +1-0.0304 +/-1.16 +/-0.150 +/-0.0307 +/-0.0662 0.157 0.0775 0.486 0.0985 0.0568 0.0595 0.0686 0.148 0.139 0.119 0.0746 0.107 0.0572 0.0543 0.521 0.0985 0.0511 0.0555 pCiig pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCilg pCi/g pCi/g pCi/g pCi/g pCiig pCi/g pCi/g pCi/g pci/g JPHI 12/26/06 1727 598455 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 12/21/06 1245 597813 The following Analytical Methods were performed Method Description EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside of specified acceptance criteria Analyte is a surrogate compound 62

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Pcwer Address : 362 Injun Hollow Rd East Hampton, Connecticut 06L-24 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-012F Project: YANK01204 Sample ID: 178151014 Client ID: YANKOOI Vol. Recv.: Par-ameter Qualifier Result Uncertainty LC TPU MDA units DF Analyst Date Thme Batch Mtd 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 RD Results are either below the MDC or tracer :ecovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected albove 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 basi ;. 63

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 064. 4

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Project: YANK01204 Client ID: YANK001 Vol. Recv.: Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006-013F 178151015 TS 19-DEC-06 21-DEC-06 Client 6.31% Parameter Qualifier Result Uncertdnty LC TPU MDA Units DF Analyst Date Trme 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 0.518 U -0.0206 0.394 0.497 UI 0.00 4.42 0.152 U 0.0204 U 0.0153 U 0.0595 0.521 0.592 U 0.00888 U 0.00569 8.97 0.497 U-0.000226 0152 +/-0.)925 +/-0.0)661 +/-C.152 +1-0.1)616 +/-0.)195 +/-0., )794 +1-0. )284 +1-0.:)515 +/-0.)407 +/-0.)609 +/-0.)382 +/-0.)577 +/-0.)125 +1-0.)112 +1-( 0.490 +/-0.)616 +/-0.3157 +/-0.3269 0.0346 0.0571 0.0775 0.0227 0.0123 0.0114 0.0103 0.0362 0.0312 0,0326 0.0181 0.0257 0.00902 0.00981 0.0846 0.0227 0.014 0.0118 +/-0.0925 +/-0.0661 +/-0.152 +/-0.0616 +/-0.0195 +/-O.0794 +1-0.0284 +/-0.0515 +/-0.0407 +1-0.0609 +/-0.0382 +/-0.0577 +/-0.0125 +/-0.0112 +/-0.490 +/-0.0616 +/-0.0157 +/-0.0269 0.073 0.117 0.162 0.047 0.0256 0-0238 0.022 0,0742 0.0664 0.0666 0.037 0.0526 0.019 0.0205 0.184 0.047 0.0287 0.0244 pCi/g pCi/g pCi/g pCi/g pCi/g 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 JPHI 12/26/06 1814 598455 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 12/21/06 1245 597813 The following Analytical Methods were performed Method Description I EML HASL 300, 4.5.2.3 Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside of specified acceptance criteria Analyte is a surrogate compound 64

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company: Connecticut Yankee Atomic Pc wer Address : 362 Injun Hollow Rd East Hampton, Connecticut 06& 24 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-013F Project: YANK01204 Sample ID: 178151015 Client ID: YANKOOI Vol. RecvQ: Parameter Qualifier Result Uncertainty LC TPU MDA units DF Analst Date Time Batch Mtd Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol--condensation p roduct 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 anal.,sis D Results are reported from a diluted aliquot oW the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Samplt concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected above the MDL, MDA, or LOD. UI Gamma Spectroscopy-Uncertain identification X Consult Case Narrative, Data Summary pack age, or Project Manager concerning this qualifier Y QC Samples were not spiked with this comp)und 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

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com ,Certificate of Analysis Company : Connecticut Yankee Atomic Power Address: 362 Injun Hollow Rd East Hampton, Connecticut 0 Q24

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 9, 2007 Project: YANK01204 Client ID: YANK001 Vol. Recv.: Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: 9527-0006-014F 178151016 TS 19-DEC-06 21-DEC-06 Client 8.8% Parameter Qualifier Result U] Rad Gamma Spec Analysis GammaSolid-FSS GAM & ALL FSS 226 Ingrowth neer tainty LC TPU MDA Units DF Analyst Date Time Batch Mtd 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 0.613 U -0.0135 0.288 0.740 U 0.0208 4.21 0.132 U -0.0376 U -0.0308 U 0.0332 0.622 0.831 U 0.0141 U 0.000806 10.8 0.740 U -0.00761 0.199 +1-0.102 +1--C.0434 +/-0.145 +/4-C.0593 +/-C.0173 +/-C4.0669 +/-C.0239 +/-4-.0353 +/-C.0332 +/-C.0359 +/-C.0379 +/--(.0583 +/-(.0098 +/-0.420 +/--C.0593 +/-C.0136 +/-4.02r87 0.0302 0.0388 0.0669 0.019 0.011 0.0096 0.00961 0.0294 0.0265 0.O318 0.0169 0.0223 0.00842 0.00836 0.0771 0.019 0.0113 0.00946 +/-0.102 +/-0.0434 +/-0.145 +/-0.0593 +/-0.0173 +/-0.0669 +/-0.0239 +/-0.0353 +/-0.0332 +/-0.0359 +/-0.0379 +/-0.0583 +/-0.0105 +1-0.0098 +/-0.420 +/-0.0593 +/-0.0136 +/-0.0287 0.0628 0.0789 0.139 0.0391 0,0226 0.0198 0,0201 0.0601 0-0555 0.0647 0.0344 0.0454 0.0175 0.0173 0.163 0.0391 0.023 0.0195 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pci/g pCilg pCi/g pci/g pCi/g pCi/g pCi/g JPHI 12/26/06 1940 598455 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 12/21/06 1245 597813 The following Analytical Methods were performed Method Description EML HASL 300,4.5.2.3 Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside )f specified acceptance criteria

• • Analyte is a surrogate compound 66

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Company : Connecticut Yankee Atomic Power Address : 362 Injun Hollow Rd East Hampton, Connecticut 06424 Report Date: January 9, 2007

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Client Sample ID: 9527-0006-014F Project: YANK01204 Sample ID: 178151016 Client ID: YANKO01 Vol. Recv.: Parameter Qualifier Result Uncertainty LC TPU MDA Units DF Analyst Date Time Batch Mtd Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol-condensation p oduct B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer tecovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for, but not detected at ove the MDL, MDA, or LOD. UI Gamma Spectroscopy-Uncertain identificxion X Consult Case Narrative, Data Summary pack ige, or Project Manager concerning this qualifier Y QC Samples were not spiked with this comp(,und A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was -xceeded The above sample is reported on a dry weight basP:. 67

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.geltcom QC Summary Client: Connecticut Yankee Atomic Power 362 Injun Hollow Rd Report Date: January 9,2007 Page I of 9 East Hampton, Connecticut

Contact:

Mr. Jack McCarthy Workorder: 178151 Parmname NOM -am-pleQual oC gad Alpha Spec Batch 597843 Units RPD% REC% Range AnIst Date Time QC120125 1177 Ameiecium-24 I Curium-242 Curnum-243/244 QC120 125 1179 Americium-241 Curium-242 Curiurr-243/244 QC 120125 1176 Americium-24 I 178150004 DUP U -0.0434 Uncert: +- -0.0605 TPU: +j -0.0605 U 0.046 Uncert: -, -0.0863 TPU: +,-0.0865 U 0.106 Uncerc --/-0.160 TPU: --4-0.161 U U -0.023 +/-0.143 +/-0.143 0.216 +/-0.173 +/-0.175 -0.0256 +7-0.142 +/-0.142 pCi/g 61 pCifg 130 pCi/g 327 (0%- 100%) JASI 12/26/0609:08 (0% - 100%) (0%- 100%) LCS MB 12.0 Uncert: TPU: Uncert: TPU: 14.5 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: 11.5 +1-1.09 +/-1.74 U 0.123 +1-0.120 +/-0-121 13.5 +1-1.18 +/- 1.98 U -0.0252 +/-0.0563 +/-0.0563 0.389 +/-0.201 +/-0.206 U 0.107 +/-0.141 +/-0.141 Curium-242 pCi/g pCi/g pCi/g pCi/g pcil.g pCi/g pci/g pCi/g pCilg 93 (75%-125%) 96 (75%-125%) 12/26/06 09:08 12/26/06 09:08 Curium-243/244 QC1201251179 178150004 MS Americium-241 Curium-242 Curium-243/244 12.0 U -0.0434 Uncert: +, -0.0605 TPU: +,-0.0605 U 0.046 Uncert: +, -0.0863 TPU: +. -0.0865 14.6 U 0.106 Uncert: --/-0.160 TPU: -/-0.161 U 12.4 +/-1.22 +/-1.95 0.137 +/-0.143 +/-0.144 14.4 +/-1.31 +/-2.20 103 (75%-125%) 99 (75%-125%) Batch 597851 QC1201251201 178150004 DUP Plutonium-238 U -0.0772 U -0.0271 pCi/g 96 (0% - 100%) JASI 12/27/06 14:58 68

GEL LABORATORIES LLC 2040 Savage Fkad Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summar Workorder: 178151 Page 2 of 9 Parmnae. NOM -&ag n uai _Q_ Units RPD% REC% Range Anist Date Time Rad Alpha Spec Batch 597851 Plutonium-239/240 QC 1201251203 LCS Plutonium-238 Plutonium-239/240 QC1201251200 MB Plutonium-238 Plutonium-239/240 QC1201251202 178150004 MS Plutonium-238 Plutonium-239/240 Uncert: 0.162 TPU: +4-0.162 u 4)0038 Uncert: -,1-0.120 TPU: +,-O.120 Uncert TPU-11.8 Uncert: TPU: Uncert: TPU: Uncert: TPU: u -0.0772 Uncert: 4/-0.162 TPU: 4/-0.162 12.4 U -0.0038 Uncert: 4/-0.120 TPU: 4/-0.120 U 0.668 Uncert: 4--5.68 TPU: 5.68 +M-0.153 +-4.153 U -0.0384 +"-0.0928 +/-0.0929 U 0.0158.0848 -+1.0848 11.3 +1-1.12 +1-1.74 U -0.0371 +"-.0325 +1-0.0328 U 0.00988 +"4.0938 +1-0.0938 pCilg 164 (0%- 100%) pCi/g PCi/g pCi/g PCV/g PCilg pCi/g (75%-125%) 96 (75%-125%) U -0.199 +1-0.151 +/-0.153 10.7 +/-1.19 +/-1.76 (75%-125%) 86 (75%-125%) Batch 597852 QC1201251205 178150004 DUP Plutonium-241 QC1201251207 LCS Plutonium-241 QC1201251204 MB Plutoniumn-241 QC1201251206 178150004 MS Plutonium-241 Rad Gamma Spec Batch 598455 QC1201252582 178151001 DUT Aclinium-228 133 Uncert: TPU: Uncert: TPU: U -3.25 +1-5.56 +1-5.56 106 +/-7.69 +4-12.3 U -3.0 +1-6.23 +4-6.23 117 +1-9.18 +/-14.3 pCi/g 0 (0% - 100%) JASI PCi/gT pCi/g PCi/g 80 (75%-125%) 12/28/06 01:38 12/28/06 02:41 12/28/06 01:07 12/28/06 02:09 A37 U Uncert: TPU: 0.668 4+-5.68 +1-5.68 0.920 ý-1-0.233 86 (75%-125%) Uncert: 0.801 +--0.152 +/-0.152 pCi/g 14 (0%- 100%) JPHI 12/26/06 19:41 69

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www-q.Wm QC Summary Workorder: 178151 Page 3 of 9 Parm^ame NOM Sample Qual QC Units RPD% RKC% Range Atist Date Time Rad Gamma Spec Batch 598455 TPU: +"-1.233 Americimn-241 u -4).0188 UI 0.00 pCi/g 428 (0%- 100%) Uncen: +4-).0446 +1-0.0377 TPU: +/-).0446 +/-0.0377 Bismuth-212 0.673 0.708 pCi/g 5 (0% - 100%) Uncert: +,-0.460 +/-0.305 TPUM +-0.460 +/-0.305 Bismuth-214 0.845 0.888 pCiig 5 (0% - 100%) Uncert: +--0.148 +/-0.0971 TPU: -h-0-148 +/-0.0971 Cesium-134 u 0.0515 U 0.0265 pCi/g 64 (0% - 100%) Uncert: +/-).0894 +/-0.0399 TPU: +/-10894 +/-0.0399 Cesium-137 1.22 1.21 pCi/g 0 (0% - 100%) Uncen: +'-0.111 +/-0.0627 TPU: +.'-0.111 +/-0.0627 Cobalt-60 0.073 U 0.0358 pCi/g 68 (0%- 100%) Uncert: +/--0464 +4-0.0273 TPU +/-3 0464 +1-0.0273 Europium-152 u -0.035 U -0.014 pCi/g 86 (0%- 100%) Uncert: +1-3.0863 +/-0.0528 TPU: +1-D.0863 +/-0.0528 Europium-154 U 0.181 U -0.0154 pCilg 237 (0% - 100%) Uncert: +'-0. 107 +/-0.0692 TPU: +'-0.107 +/-0.0692 Europium-155 U 0.0759 U 0.0495 pCi/g 42 (0% - 100%) Uncert: +/-a.0764 +/-0.056 TPU: +4-010764 +/-0.056 Lead-212 0.957 0.838 pCi/g 13 (0% - 20%) Uncer: +/-0.0943 +I-0.0599 TPU. +/-0.0943 +/-0.0599 Lead-214 0.855 0.924 pCi/g 8 (0% - 20%) Uncert: +'-0.162 +/-0.0992 TPU: +'-0.162 +I-0.0992 Manganese-54 U -10065 U 0.0218 pCi/g 370 (0%- 100%) Uncert: +/-D.0354 +!-0.022 TPU: +/-0.0354 +/-0.022 Niobiumn-94 U -).0201 U 0.00669 pCilg 400 (0%- 100%) Uncert: +/-0.0327 +/-0.0206 TPU: +4-0.0327 +/-0.0206 Potassium-40 9.02 9.59 pCi/g 6 (0% - 20%) Uncert: q-1.25 +/-0.703 TPU: iI-1.25 +1-0.703 Radium-226 0.845 0.888 pCi/g 5 (0% - 100%) Uncert: +'-0.148 +/-0,0971 TPU: + L-0. 148 +/-0.0971 Silver-108m U 0.0454 U -0.00719 pCi/g 275 (0%- 100%) Uncert: +1-0.0332 +/-0.0184 70

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 178151 Parmname NOM Rad Gamma Spec Batch 598455 Page 4 of 9 S;amnle Oual OC Units RPD% REC% Ranee Antst Date Time Thallium-208 QC1201252583 LCS Actinium-228 Americium-241 Bismuth-212 Bismuth-214 Cesium-134 Cesium-137 Cobalt-60 Europium-152 Europium-154 TPU: -+,-0.0332 0.307 Uncert: +,-O.0608 TPU: +,-0.0608 +/-0.0184 0.329 +1-0.049 +/-0.049 pCi/g 7 (0%- 10o%) Uncert: TPU: 23.4 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: 9.51 Uncert: TPU: 13.9 Uncert TPU: Uncert: TPM: Uncert: TPU: Uncert: TPU-Uncert: TPU: Uncert: TPU: Uncem TPU: Uncert: TPU: U 0.0182 +/-0.550 +/-0.550 24.1 +/-3.03 +/-3.03 U -0.71 +/-0.922 +/-0.922 U 0.0566 +/-0.198 +/-0.198 U -0.0257 +/-0.132 +/-0.132 10.3 +/-0.871 +/-0.871 14.6 +/-1.15 +1-1.15 U 0.301 +/-0.276 +/-0.276 U 0.207 +/-0.204 +/-0.204 U -0.105 +/-0.250 +/-0.250 U 0.0554 +/-0.141 +/-0.141 U 0.0125 +/-0.203 +/-0.203 U 0.0245 +/-0.122 +/-0.122 U 0.0158 +/-0.101 +/-0.101 U 0.200 pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g pCi/g p*Clg pCi/g pCi/g pCi/g 12/2t6106 17:22 103 (75%-125%) 109 (75%-125%) 105 (75%-125%) Europium-155 Lead-212 Lead-214 Manganese-54 Niobium-94 Potassium-40 71

GEL LABORATORIES LLC 2040 Savage Roacf Charleston SC 29407 - (843) 556-8171 - www.geLcom QC Summary Workorder: 178151 Parmname NOM Page 5 of 9 Sample Qual QC Units RPD% REC% Range Arist Date Time Rad Gamma Spec Batch 598455 Radium-226 Silver-108m Thallium-208 QC1201252581 MB Actiniumn-228 Americium-24 1 Bismuth-212 Bismuth-214 Cesium-1 34 Cesium-137 Uncert-TPU: Uncert: TPU: Unceri: TPU: Uncert: TPU: Unceri: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPUM Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert TPU: Uncert: TPU: +/-0.941 +/-0.941 U 0,0566 +/-0.198 +"-0.198 U -0.0881 +1-0.100 +/-0.100 U 0.00472 4/-0.102 +/-0,102 U 0.011 +/-0.0309 +/-0.00 U -0.00094 +/-0.00803 +/-0.00 U 0.0724 +/-0.0805 +"-0.00 u 0.00712 +/-0.0193 +/-0.00 U 0.000566 +1-0.00992 +/-0.00 U 0.002 +1-0.00944 +/-0.00 u 0.0066 +1-0.0111 +/-0.00 U 0.00617 +/-0.0217 ++/--0.00 U -0.00113 +/-0.034 +t-0.00 U -000919 +/-0.0152 +/-0.00 U -0.0171 +/-0.0194 +1-0.00 U 0.0189 +1-0.0168 +/-0.00 pCi/g PCi/g pCi/g pCi/g pCilg PCi/g PC'ig PCi/g PCi/g PCi/g PCi/g PCi/g PCi/g pCi/g PCi/g (75%-125%) 12126/06 19:45 Cobalt-60 Europium-152 Europium-154 Europium-155 Lead-212 Lead-214 72

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 -www.gel.com Workorder: 178151 Parmname Rad Gamma Spec Batch 598455 Manganese-54 Niobium-94 Potassium-40 Radiutn-226 QC Summary Page 6 of 9 NOM Sample Qual _QC Units RPD% REC% Range Anist Date Time Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: U 0.0109 +/-0.00977 +/-0.00 U -0.00523 +/-0.00878 +/-0.00 U 0.117 +/-0.115 +/-0.00 U 0.00712 +/-0.0193 +/-0.00 U 0.0117 +/-0.00831 +/-0.00 U -0.00956 +1-0.0137 +/-0.00 PCI/g PCi/g PCilg PCIlg pcVlg PC-dg Silver-108m Thallium-208 Rad Gas Flow Batch 597867 QC1201251238 178150004 DUP Strontium-90 0.0678 Uncer: +j-0.0236 TPU: +1-0.0239 QC1201251240 Stronbum-90 LCS 0.0917 +/-0.0235 +/-0.024 1.31 +/-0.0881 +/-0.107 pCi/g 30 (0%- 100%) KSDI QC1201251237 MB Strontium-90 QC1201251239 178150004 MS Strontium-90 Rad Liquid Scintillation Batch 597832 QC1201251145 178150004 DUP Iron-55 QC1201251147 LCS Iron-55 QC1201251144 MB Iron-55 1.65 Uncert: TPU: Uncer: TPU: 5.26 Uncert: TPU: U 0.00445 +/-0.0168 +/-0.0168 PCtIg PG~fg PCdg 79 (75%-125%) 12/28/06 17:27 12/28/06 17:27 12/28/06 17:27 12/28/06 17:27 0.0678 +/-0.0236 +/-0.0239 4.66 +/-0.321 +/-0.394 87 (75%-125%) U -8.18 Uncert: +/-16.2 TPU: +/-16.2 600 Uncert: TPU: U -4.3 +/-17.2 +/-17.2 668 +/-32.9 +/-86.5 Plaig 0 (0% - 100%) AXPI 01/03/07 16:37 PCi/g 111 (75%-125%) 01/03/07 17:40 01/03/07 16:06 U -7.49 PCi-g 73

GEL LABORATORIES LLC 2040 Savage Road Chadeston SC 29407 - (843) 556-8171 - www.gel.com Workorder-178151 Parmname Rad Liquid Scintillation Batch 597832 QC120.25i146 178150004 MS Iron-55 Batch 597834 QC1201251150 178150004 DUP Nickel-63 QC1201251152 LCS Nickel-63 QC1201251 149 MB Nickel-63 QC1201251151 178150004 MS Nickel-63 Batch 597837 QC1201251160 178151003 DUP Tritium QC1201251162 LCS Tritium QC1201251159 MB Tritium QCI20251 t1l 178151003 MS Tritium Batch 597838 QC1201251164 178150004 DUP Carbon-14 QC12012-51166 LCS Carbon-14 NOM Uncert TPU 627 Uncert: TPU Uncert: TPU 541 Uncert: TPU Uncert TPU 588 Uncert: TPU Uncert: TPU 8.11 Uncert: TPU: Uncerl: TPU: 8.11 Uncert: TPU: Uncert: TPU: ,.96 Uncert: TPU: QC Summary 3ample Qual QC Units +/-13.9 +/-13.9 U -8.18 676 pC +/-16.2 +t-34.9 +/-16.2 +/-93.2 U -0.808 U -6.29 pC +/-13.8 +/-12.2 +1-13.8 +/-12.2 439 pC +/-21.3 +/-26.3 U -1.04 pC. +/-10.7 +/-10.7 U -0.808 524 pCi +/-13.8 +1-24.5 +/-13.8 +/-31.1 U -0.325 U 0.156 pCi +/-1.10 +/-1.13 +/-1.10 +1-1.13 9.63 pCi +1-1.01 +/-1.02. U 0.0585 pCi +1-0.550 +/-0.550 U -0.325 6.71

pCi,

+/1-.10 +1-14A9 +/-t.10 +1-1.49 U 0.02-05 U 0.0357 pCi/ +, -0.0667 +1-0.0667 +, -0.0667 +/-0.0667 6.96 pCi +/-0.164 +1-0. 197 Page 7 of 9 RPD% REC% Range Anist Date Time i/g 108 (75%-125%) i/g i/g i/g ig i/g /9 i9 0 (0% - 100%) 'AXPI 81 (75%-125%) 89 (75%-125%) 0 (0% - 100%) 4XD2 119 (75%-125%) 83 (75%-125%) 0 (0% - 100%) kXD2 100 (75%-125%) 01/03107 17:09 12/30/06 21:48 12/30/06 22:21 12/30/06 21:32 12/30/06 22:04 12/29/06 02:05 12/29/06 03:08 12/29/06 01:34 12/29106 02:37 12125/06 17:59 12/25/06 21:25 9g 74

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Workorder: 178151 Parmname Rad Liquid Scintillation Batch 597838 QC Summary Page 8 of 9 NOM m Qual QC Units RPD% REC% Range Anist Date Time QC1201251163 MB Carbon-14 Uncert: TPU: U 0.00509 +1-0.0661 +/-0.0661 pCi/g pCi/g 12/25/06 15:55 12125/06 20:01 QC1201251165 178150004 MS Carbon-14 7.01 U Uncert: TPU: 0-0205 +IL0.0667 +kd.0667 Batch 599130 QC1201254112 178150004 DUP Technetium-99 QC1201254114 LCS Technetium-99 QC1201254111 MB Technetium-99 QC1201254113 178150004 MS Technetium-99 U 41.0363 Uncert "I-0.197 TPU: i-l-0.197 12.7 Uncert: TPU: U 6.88 +/-0.163 +/-0.195 -0.0772 +/-0.201 +/-0,201 12.2 +/-0.317 +/-0.440 98 (75%-125%) pCi/g 0 (0% - 100%) KXR1 01/03/07 20:12 Uncert TPU: U -0.0432 +/-0.158 +1-0.158 pCi/g pCi/g pCi/g 96 (75%-125%) 01/03/07 22:17 01/03107 19:10 01103107 21:15 12.7 U Uncert: TPU: -0.0363 ,4-0. 197 0.197 11.9 +/-0.389 +1-0.490 93 (75%-125%) Notes: The Qualifiers in this report are defined as follows: A B BD C D H J N/A ND R U U1 A quality control analyte recovery is outside of specifed acceptance criteria Analyte is a surrogate compound Result is less than value reported Result is greater than value reported The TIC is a suspected aldol-condensation product Target analyte was detected in the associated blank Results are either below the MDC or tracer recovery i.. low Analyte has been confirmed by GCIMS analysis Results are reported from a diluted aliquot of the samrt fe Analytical holding time was exceeded Value is estimated Spike recovery limits do not apply. Sample concentraino exceeds spike concentration by 4X or more Analyte concentration is not detected above the detect an limit Sample results are rejected Analyte was analyzed for, but not detected above the PIDL, MDA, or LOD. Gamma Spectroscopy--Uncertain identification Consult Case Narrative. Data Summary package, or Ptroect Manager concerning this qualifier 75

GEL LABORATORIES LLC 2040 Savage Road! Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 178151 Page 9 of 9 Parmnare NOM Samp....al-Units RPD% REC% Range Anlst Date Time X Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceedt-d N/A indicates that spike recovery limits do not apply when saniple concentration exceeds spike cone. by a factor of 4 or more.

• • Indicates analyte is a surrogate compound.

A The Relative Percent Difference (RPD) obtained from the sample d&picate (DUP) is evaluated against the accepamce criteria when the sample is greater than five times (5X) the contract require i detectsim 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 evaluat 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 or the QC Summary. 76

i,. QUALITY CONTROL DATA 77

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Client - Connecticut Yankee Atomic Power 362 Injun Hollow Rd Renort Date: January 4, 2007 Page 1 of 9 East Hampton, Connecticut

Contact:

Mr. Jack McCarthy Workorder: 178151 Parmname Rad Alpha Spec Batch NOM Sample Qu__ QC Units RPD% ...REC.% -Ra-nge A__.nist Date Time 597843 QC 1201251 177 AmericiLuM<24 CUriu1m-242 CL1611m-243/244 QC120125l 179 Americium-241 CLurium 12 Curium- '43/244 QC 12012511(76 Amnericitim-24 I 178150004 DUP U -0.0434 Uncen: +1-0.0605 TPU: +/-0.0605 U 0.046 Uncert: +/-0.0863 TPU: +/-0.0865 L_ 0.106 Uncert: +/-0.160 TPU: +/-0.161 U U -0.023 -/-0.143 +/-0.143 0.216 +/-0.173 +/-0. 175 -0.0256 +/-0 1421 +1-0.142 pCi/g 61 (01%- 100ON,%i IASI 112/6/06 09-08 pCi/g 130 pCi/g 327 (0%- 100%) 10% - 100%) LCS MB 12.0 Uncert: TPU: Uncert: TPU: 14.5 Uncert: TPU: Uncert: TPU: Uncert: TPU: Ulncert: TPU: 11.5 +/- 1.09 +1-1.74 U 0.123 +/-0.120 +/-0.121 13.5 +/-I,18 +/-1,98 U -0.0252 +/-0.0563 +/-0.0563 0.389 +i-0.201 +/-0.206 U 0.107 +/-0.141 +/-0.141 Curium-242 pCi/g pCiig pCi/g pCi/g pCilg pCi/g pCi/g pCi/i pCi/v 93 (75%-125%) 96 (75%-125%) 12/26/06 09:08 12/26/06 09:08 Curiurn-243/244 QC1201251178 178150004 MS Americium-241 Curium-242 CuriumR-243/244 Batch 597851 QC120125120, 178150004 DUP Plutonium-238 12.0 U -0.0434 Uncert: +/-0.0605 TPU: +/-0.0605 U 0.046 Ulncert: +/-0.0863 TPU: +/-00,865 14.6 U 0.106 U ncert: +/-0.160 TPU: +/-0.161 U 114 +/-I.22 +/- 1.95 0.137 +/-0.143 +/-0.144 14.4 +1-1.31 +/-2.20 103 (75%-125%) 99 (7/%-25%1) Li -0,0772) U -0.0271 pCi/t 96 i0%- 100%) JASI 12/27/06 14:58 78

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 178151 Page 2 of 9 R E.C L7t, Range Anis~t.Date Time Parmname Rad Alpha Spec Batch NOM Sample Qual QC Units RPD%.. Plutoniurn-239/240 QC1201251203 LCS Plulonium-238 Plutonium-239/240 QC 1201251200 MB Plutonium-238 Uncert: +/-0.162 TPU: +/-0.162 u -0.0038 Uncert: +/-0.120 TPN: +/-0.120 Uncert: TPU: 11.8 U ncert: TPU: +/-0.153 +/-0.153 U -0.0384 +/-0.0928 +/-0,0929 U 0.0158 +/-0.0848 +/-0.0848 11.3 +/-1 12 +/-1,74 U -0.0371 +/-0.0325 +/-0.0328 U 0.00988 +/-0.0938 +/-0.0938 pCi/g 164 (0%- 100%) (75%-125%) pCi/g 96 (75%- 125%) Plutonium-239/240 QC1201251202 178150004 MS Plutonium-238 Plutonium-239/240 Batch 597852 QC1201251205 178150004 DUP Pluhonium-214t Unceru: TPU: Uncert: TPU: pCi/g PCi/g, U -0.0772 Uncert: +/-0.162 TPU: +/-0.162 12.4 U -0.0038 Uncert: +/-0.120 TPU: +/-0.120 U -0.199 +/-0.151 +/-0.153 10.7 +/-I.19 +/-1.76 -3.25 +/-5.56 +/-5.56 106 +/-7.69 +/- 11.3 (75%- 125%) 86 (75%- 125%) Uncert: TPU: U 0.668 +/-5.68 +/-5.68 U pCi/g 0 (0%- 100%) JASI 12/28/06 01:38 QC 1201251207 LCS Plutonium-241 QC1201251204 MIB Plutoniurn-241 133 UnIcert: TPU: Uncert: TPU: 137 U Uncerl: TPU: U -3.0 +/-6.23 +/-6.23 PC)/g, PCi/2 80 (75%- 125%) 121/28/06 0)2:41 121/28/06 01:07 12/28/06 02:09 QC1201251206 178150004 MS Plu1orniur--241 Rad Gamma Spec Batch 598455 QC1201252582 178151001 DUP ActiniUm-228 0.068 +/-5.68 +/-5.68 117 +/-9.18 +1-14.3 86 (75% -125%) 0.920 +/-/-0.233 U ltceri 0.801 +/-0.152 +1-0.152 pCi/g 14 (0%- 100%) JPH I 12/26/06 19:41 79

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 178151 Parrnname Rad Gamma Spec Batch 598455 Page 3 of 9 R E-C% R~ange Antst. Date Time NOM sample Qual QC U.n.its RP.... %.. Amercium-24 I Bismuth-2 12 Bismuth-2 14 Cesium-134 Cesium-137 Cobalt-60 Europium-152 Europium-154 Europium-155 TPU: +/-0.233 U -0.0188 Uncert: +/-0.0446 TPU: +/-0.0446 0.673 Uncert: +/-0.460 TPU: +/-0.460 0.845 Uncert: +/-0.148 TPU: +/-0.148 U 0.051-5 U ncert: +/-0.0894 TPU: +/-0.0894 1.22 Uncert: +/-0.111 TPU: +/-0.). 11 0.073 Uncert: +/-0.0464 TPU: +/-0.0464 u -0.035 Uncert: +/-0.0863 TPU: +/-0.0863 U 0.181 Uncert: +/-0.107 TPU: +/-0.107 u 0.0759 Uncert: +/-0.0764 TPU: +/-0.0764 0.957 Uncert: +/-0.0943 TPU: +/-0.0943 0.855 Uncert: +/-o.162 TPU: +/-0.162 U -0.0065 Uncert: +1-0.0354 TPU: +/-0.0354 U -0.0201 Uncert: +/-0.0327 TPU: +/-0.0327 9.02 Uncert: +/- 1.25 TPU: +/-1.25 0.845 U ncert: +/-0.148 TPU: +/-0,148 U 0.0454 U ncert +/-0.0332 UI 0.00 +/-0.0377 +/-0.0377 0.708 +/-0.305 +/-0.305 0.888 +/-0.0971 +/-0.0971 U 0.0265 +/-0.0399 +/-0.0399 1.21 +/-0.0627 +/-0-0627 U 0.0358 +/-0.0273 +/-0.0273 U -0.014 +/-0.0528 +/-0.0528 U -0.0154 +/-0.0692 +/-0.0692 U 0,0495 +/-0.056 +/-0.056 0.838 +/-0.0599 +/-0.0599 0.924 +/-0.0992 +/-0.0992 U 0.0218 +/-0.022 +/-0.022 U 0.00669 +/-0.0206 +/-0.0206 9.59 +/-0.703 +/-0.703 0.888 +/-0.0971 +/-0.0971 U -0.00719 +/-0.0184 pCi/g 428 pCi/g 5 pCi/g 5 pCi/g 64 pCi/g 0 pCi/g 68 pCi/g 86 pCi/g 237 pCi/g 42 pCi/g 13 pCi/g 8 pCi/g 370 pCi/g 400 pCi/g 6 pCi/g 5 pCi/g 275 (0%- 100%) (0% - 100%) (0%- 100%) (0(% - 100%) (0% - 100%7 (0%- 100%) (0% - 100%) (0%- 100%) ()% - 100%) (0% - 20%) ()% - 2%) (0% - 100%,) Lead-2 12 Lead-2 14 iMartaanese-54 NiobIIuM-94 PotassiitM-40 RadiUrn-226 Silver-108m (0% - 206%') (0% o-I 001Y)% (0%?) - I 001,/) 80

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 178151 Parmname Rad Gamma Spec Batch 598455 Page 4 of 9 REC% Rapge Anist Date Time NOM Sample Quid QC-... Units",.. R-PD. % Thalium-208 TPU: +/-0.0332 0.307 Uncert: +/-0.0608 TPU: +/-0.0608 +/-0.0184 0.329 +1-0,049 +/-0.049 pCi/g 7 M0%',- 100%) QCI 21)1 252583 Actinhim-228 Americiumn-24 LCS Bismtuth-212 Bismuth-2 14 Cesium-134 Cesimm-137 Cobalt-60 Uncert: TPU: 23.4 Uncen: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: 9.51 Uncert: TPU: 13.9 Uncert: TPU: Uncert: TPU: U ncert: TPU: U ncert: TPU: Uncert: TPU: U ncert: TPU: U ncert: TPU: Europium-152 Europium-154 Europium-155 U 0.0182 +/-0.550 +/-0.550 24.03 +/-3,03 +/-3).03 UI -0.71 +/-0.922 +/-(:).922 U 0.0566 +/-0.198 +/-0.198 U -00257 +/-0. 32 +/-0 132 10.3 +/-0.871 +/-0.871 14.6 +/- 1.15 +/- 1 15 U 0.3(01 +/-0.276 +/-0.276 U 0.207 +1-0.204 +/-0.204 u -0.105 +/-0.250 +/-0,250 U 0.0554 +/-0.141 +/-0.141 U 0.0125 +/-0.203 +/-0.203 U 0.0245 +/-0.122 +/-0.122 U 0.0158 +/-0. 101 +/-0.101 U 0.200 pCi/g pci/g-pCi/L' pci/g pCi/g pc:/2 pCi/,g pci/2 109 (75%-125%) 105 (75%-125%) 103 (75%- 125%) 12/26/06 17:22 pCi/g Lead-212 Le-id-"14 pc)/!g pci/2, Maneanese-54 NiObiulm-94 Potas.iiumn-4( U ncert: TPU: pCi/g 81

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 178151 Page 5 of 9 REM Range Anist Date Time Parmname Rad Gamma Spec Batch 5' Raditum-226 Silver-10in Thallium-208 QC 12012.5258 Actinium-228 Arnericium-241 NOM Sample Qual _QC Units...... RPD% Bism-nuth-212 Bismuth-214 Cesium-134 Cesium-137 Uncert: TPU: U ncert: TPU: Uncert: TPU7 Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: U ncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU: Uncert: TPU; L) ncert: TPU: +/-0.941 +/-0.941 U 0.0566 +/-0.198 +/-0.198 U -0.0881 +/-0.100 +/-0.100 U 0.00472 +1-0. 102 +/-0,102 U 0.0()11 +/-0.0309 +/-0,00 U -0.00094 +/-0.00803 +/-0.00 U 0.0724 +/-0.0805 +/-0.00 U 0.00712 +/-0.0193 +/-0.00 u 0.(X)0566 +/-0,00992 +/-0.()0 U 0.002 +/-0.00944 +/-0.00 U 0.0066 +/-0.0111 +/-(}00 U 0.00617 +/-0.0217 +/-0.00 1U -0.00113 +/-0.034 +H-0.00 U -0.00919 +/-0.0152 +/-0J)0 U -0,()17 1 +/-0.0194 +/-0.00 U 0.0189 +/-0.0168 +/-0.00 pCi/g pCi/g pCi/g 12126/06 19:45 pC i/g pCi/g (75%- 125%) Pci/g-PCi/g PCi/1c Cobalt-60 Europium-152 Europi urn.- 154 Europium-155 Lead-2 12 Lead-2 4I-82

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 178151 Page 6 of 9 Range AI.s. Date Time Parmname Rad Gamma Spee Batch 51 Manganese-54 Niobium-94 Potassium-40 Radjum-226 Silver-I 08M Thailium-208 NOM Sample Qual QC Units RPD% RE C' U ncert: TPU: Uncert: TPU: U ncert: ULncert: TPU: Uncert: Uncert: TPU: U 0.0109 +/-0.00977 +/-0.00 U -0.00523 +/-0.00878 +/-0.X0) U 0.117 +1-0.1 I15 +/-0.00 U 0.00712 +/-0.0193 +/-0.10 0.0117 +/-0.0083 1 +I-0.00 U -0.00956 +/-0.0137 +1-0.()0

POlg, pciIg pcifg.

p~i-, Rad Gas How Batch 597867 QC1201251238 178150004 DUP Strontium-90 QC 120125 240 LCS Strontim-90 QC1201251237 MB11 Strontium-90 QC1201251239 1"78150o04 MS Strontnim-90 Rad Liquid Scintillation Batch 597832 QC1201251145 178150004 DU01 Iron-55 0.0678 Uncert: +/-0.0236 TPU: +/-0.0239 0.0917 +/-0.0235 +/-0.024 1.31 +/-0.088 1 +/-0.107 pCi/g 30 (0%- 100%/) KSDI 1.05 TPU:

ncert:

TPU: 5.20 U ncert: TPU: pCilg PC'i/a 79 175%.- 125%) 12/28/06 17:27 12/28/06 17:27 12/28/06 17:27 12/28/06 17:27 U 1-0.00445 +/-0.0168 O0(678 +/-/-().(,236 +/-0.01239 4.66 +/-/-0,3',21 +/-0-394 87 (75%-1257,) U -8.18 Uncert: +/- 10.2 TPU: +/1I6.2 L 7 -4.3 +/-17.) +/-17.2 pCi/g 0 f - t()0% VIXP1 QC 12012-)21147 L.CS Iron-55 6)00 Uincert: TPU: 668 -/-31 9 +/-86.5 Ill (75'-125%) 01103/07 16:37 01/103/07 17:40 011/03/07 16:06 QCI2I)1251144 101 Iron-55 I.1 -.749 ) pC i 83

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 178151 Parmname Rad Liquid Scintillation Batch 597832 Page 7 of 9 REC% Range Anlst Date Time NOM Sampe Qual QC Units RID 1% Uncert: TPU: QC1201251146 178150004 MS Iron-55 +/-13-9 +/-13.9 676 +/-34.9 +/-93.2 627 Uncert: TPU: Batch 597834 -8.18 +/-16.2 +1-16.2 -0.808 +1-13.8 +/-I3.8 pCiig 108 (75%-125%) 01/03/07 17:09 QC120151150 178150004 DUP Nickel-63 QC1201251152 LCS Nickel-63 QCI1201251149 MB3 Nickel-63 Uncert: TPU: 541 U ncert: TPU: Uncert: TPU: 588 U Uncert: TPU: U -6.29 +/-12.2 +/- 12.2 pCi/g 0 439 +/-21.3 +/-26.3 pCi/g 81 175%;-1254.) (01 - 100t17) VIXPI 12/30/06 21:48 12/30/06 22:2 1 12/30/06 21:32 12/30/06 22:04 U -1.04 +/-10.7 +1-10.7 QC120125115I 17815001)4 MS Nickel-63 Batch 597837 QC1201251160 178151003 DUP T ritiurn QC1201251162 L-CS Tritium QC 120] 2511 59 110 QC1201251161 178151013 M Tintum -0.808 +/-13.8 +/-13.8 524 +/-24.5 +1-3 1 I pCi/g 89 (75%- 125%) u -0.325 Uncert: +/-].1!) TPU: I/-1.10 8.11I Uncert: TPU: U 0.156 pCi/g 0 (0% - 100%) 4XD2 9.6 pCi/c +/11.01 +1-1.021 1W9 f754'-125%) 12/29/06 02:05 12/29/06 03:08 12/29/06 01:34 12/29/06 02:37 U nceert.: TPU: 8.11 LU Uncert: TPU: -0,325 Balch 597938 0.0585 +1-0.550 +1-0)550 6.71 +/-1.49 +/- 1.49 0.0357 +/-0.0667 +/-0.0667 6.9b /1-0.164 +/-0 197 PCi/g pCi/Lc 83 (75%-1251( QC12V0125164 178i50004 DUP Carbon-14 QCI2I)1251106 LCS Carbon-14 u 0.0)205 Linceri: /-(,)/l.0607 TPU: +-/)0.067 U pCi/g 0 {(0% - I 0W,1) AXD2 12/25/06 !17:59 11/25/06 211:25 6.96 Lincert: TPU: pCi/g 100 {5%12% 84

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 178151 Page 8 of 9 REC% Range An.st Parmname Rad Liquid Scintillation Batch 597838 QC1201251163 MB Carbon-14 QC1201251165 178150004 MS Carbon-14 Batch 599130 QC1201254112 178150004 DUP Technetium-99 QC 1201254114 LCS Technetiumn-99 QCI201254111 MB Technetium-99 QC1201254113 178150004 MS Technetium-99 NOM Sample Qual QC Units RPDcS Date Time Uncert: TPU: L 1 0.00509 ÷-1-0661 +/-0.0661 12/25/06 15:55 12/25/06 20:01) 7.01 Uncert: TPU: 0.O0205 +/-0.0667 +1-0.0667 -0.0363 +/-0.197 U 6.88 +/-0,163 +/-0.195 -(10772 +/-0.201 +/-0,20 1 12.2 +/-0.317 +1-0.440 pCi/g Uncert: TPU: 12.7 Uncert: TPU: U ncert: TPU: ((N.- 1001%) KX RI1 90 (-15%-1 25%1) 98 (75%-125%) U -0.0432 +/-0.158 +1-0.158 pCi/g-pCi/- pCi/l0 0 1103107 20: 12 01/03/07 22:17 01t/3/07 19:10 01/03/07 21:15 12.7 U Uncert: TPU: -0.0363 +/ 197 +/-). 197 11.9 +/-0.389 +/-0.490 93 (75%-Vs,250,) Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside of specified acceptance criteria Analyte is a surrogate compound Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank

31)

Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported trom a diltted aliquot of the sample II Analytical holding time was exceeded Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by v4X or more ND Analyle concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for. but not detected above the MDL. MDA, or LOD. U I Gamma Spectroscopy-Uncereain identification Consult Case Narrative. Data Summary package, or Project Manager concerning this qualifier 85

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 178151 Page 9 of 9 Parmname N OM SampleQual Q Units RPD% REC%.Range Anilst Date Time X Y QC Samples were not spiked with this compound /I 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. ^ 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 reqtlired 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. 86

Health Physics Procedure GPP-GGGR-R5104-003-Rev.CY-001 Major Attachment B Chain of Custody Form No 2007-00010 Connecticut Yankee Atomic Power Company 362 Injun 1101low Road, East Hampton, CT 06424 860-267-2556 Project Name: Haddam Neck Decomnmissioning Analyses Requested >Lab Use. OW Contact Name & Phone: Co-oIefts Jac M~ath 324Media sample Container Jac M~ath 324Code Type Size-Analytical Lab (Name, City, State): Code &Type Connecticut Yankee On-site Laboratory Code Priority: [ 30 D. I 15 D. [17 D.: i Other: ASAP Sample Designation Date Time U V

IComment, Preservation L-ab SamnpIe ID 9527-0005-026F 1/9/07 0910 TS G

ILM X 9527-0005-027F 1/9/07 0915 TS G ILM X 9527-0005-028F 1/9/07 0920 TS G 1LM X 9527-0005-029F 1/9/07 0930 TS G ILM X 9527-0005-030F 1/9/07 0955 TS G ILM X ___i____:__ NOTES: PO #: N/A MSR #: N/A LTP QA El Radwaste QA X Non QA Samples Shipped Via: Internal Container D Fed Ex 'Tenip.: _ Deg. C []UPS H Hand Custody Sealed? I) Relinquished By Date/Time

2) Received By Date/Time Custody Seal Intact?:

-/7 " /-- [F] Other

3) 6elpquished B Date/Time

4) Received By Date/Time Y__

AY N. Bill of Lading #

5) Relinquished By Date/Time

6) Received By Date/Timne

9-JAN-2007 11:49:54.01 CONNECTICUT YANKEE HADDAM NECK STATION

• • • • • • ."*********"*********.9************.9**

AMPLE TITLE FSS SOIL 9527-0005-026F

,EASON FOR ANALYSIS: Site Characterization 'AMPLE ID

070109003

• SAMPLE GEOMETRY

!LMAR 3AMPLE TIME

9-JAN-2007 09:10:

• GEO EFFICIENCY DATE: 13-JAN-2006

AMPLE TYPE

DIRT/SEDIMENT

• SAMPLE QUANTITY 1.29600E+03 GM

)ETECTOR

DET I

• LIBRARY

FSS DIRT

,AST ENERGY CAL

9-JAN-2007 07:30:

• ENERGY TOLERANCE: 2.00000

-EV/CHANNEL

4.99727E-01

• HALF LIFE RATIO : 9.00000 3TART CHANNEL

100

• END CHANNEL

4096

ýCQ DATE & TIME

9-JAN-2007 11:31:

• DEADTIME

(%)

0.0%

)RESET LIVE TIME

0 00:17:44

• SENSITIVITY

5.00000

'LAPSED REAL TIME 1064.2 Secs

• GAUSSIAN SEN

10.00000

'LAPSED LIVE TIME 1064.0 Secs

• CORRECTION FACTOR:

1.OOOOOE+06 )ECAYED TO 0 DAYS HOURS 'ILE IDENT

CAS$DISK: [NEU.SAMPLE.RP.NEW]070109003 ADC!

DIRTSEDIMENT.CNF;1 r*** **** ýNALYSES

PEAK V16.8 NID V3.2 MINACT V2.8 WTMEAN V1.8 "ollected by : COCO "EVIEWED BY 7OMMENTS

)ost-NID Peak Search Report

t Energy 1

74.89* 1 77.37* Area Bkgnd FWHM Channel Left Pw %Err Fit Nuclides 0 0 0 0 0 0 0 0 0 3 3 0 0 0 0 87.43 238.74* 241.88* 295 !4* 338.74* 352.19* 583.02* 609 49* 661.64* 768.47 771.60 911.14 1120.45* 1173.72* 1332.20* 107 189 47 164 52 134 58 233 65 150 588 24 12 51 41 21 37 100 78 89 47 48 55 19 26 21 5 0 3 16 6 0 1.21 0.90 0.73 1.22 0.73 1 i0 1.81 1.18 1.66 2.18 1.47 1.12 1.36 1.75 2.23 175.32 478.28 484.56 591.23 678.58 705.53 1168.17 1221.23 1325.83 1540.12 1546,40 1826.41 2246.71 2353.72 2672.19 138 1.21 150.22 100 1.21 155.18 147 15 39.6 1.07E+01 147 15 23.4 173 475 482 586 672 700 1163 1215 1317 1536 1536 1821 2238 2347 2664 6 7 8 9 12 12 12 13 15 13 13 11 16 14 15 73.2 23.8 68.6 25.5

54. 6

18. 5 37.6 21.6 9.0

52. 8 61.1 30.5

54. 2

72. 3 35.4 PB-212 PB-214 PB-214 PB-212 PB-212 PB-212 PB1-214 PB-214 AC-228 PB-214 TL-208 BI-214 CS-137 BI-214 AC-228 BI-214 CO-60 CO-60

2. 10E+00

Post-NTD Peak Search Report (continued) Sample ID : 070109003 Page Acquisition date : 9-JAN-2007 11:31:54 It Energy 0 1460.03* 0 1763.33* Area Bkgnd FWHM Channel Left Pw 'Err Fit Nuclides 166 21 0 1.35 2929.19 2922 15 15.6 4 2.62 3539.43 3530 14 59.0 K-40 BI-214

Combined Activity-MDA Report Sample ID

070109003

---

Identified Nuclides Page Acquisition date : 9-JAN-2007 11:31:54 Nuclide K-40 CO-60 CS-137 TL-208 PB-212 BI-214 PB-214 AC-228 Activity (pCi/GM)

8. 478E+00

1. 416E-01

1. 951E+00

1. 937E-01

4. 053E-01

9. 078E-01

9. 282E-01 6 996E-01 Act error

1. 424E+00

4. 776E-02

2. 523E-01

7. 468E-02

9. 586E-02

1. 737E-01

1. 434E-01

1. 893E-01 MDA (pCi/GM)

5. 136E-01

5. 003E-02

6. 341E-02 5 238E-02 7 198E-02

8. 267E-02 9 864E-02

1. 266E-01 MDA error

3. 15E-02

3. 057E-03

5. 908E-03

4. 442E-03 4 931E-03

7. 250E-03

6. 684E-03

6. 856E-03 Act/MD11 16.506 2.830 30.764 3.698 5.631 10.981 9.410 5.525 Non-Identified Nuclides Nuclide BE-7 MN-54 t!B -94 RU-106 kG-108M kG-110M SB-125

-S-134 EU-152 EU-154 EU-155 3I-212 .A-223 ZA-226 rH-228 ?A-234 CH-234 3-235 ýM-241 Key-Line Activity (pCi/GM)

1. 145E-01

-1. 469E-02 2 331E-02 -2. 031E-01

4. 767E-03 2 690E-03 6 922E-02

-4. 033E-03 7 672E-02 -1. 363E-02 -2 389E-02 2 331E-01

7. 400E-02

4. 945E-01 6.217E-01

5. 571E-01

1. 082E+00

4. 041E-02

2. 913E-02 K.L.

Ided Act error 2.472E-01 2.440E-02 2 775E-02

2. 203E-01

2. 095E-02

2. 740E-02 7 939E-02 2.262E-02

1. 490E-01

8. 409E-02

7. 754E-02

1. 876E-01

1. 683E-01

6. 644E-01

1. 937E+00

+ 1.379E-01

1. 285E+00 3 944E-02

1. 533E-01 MDA (pCi/GM)

5. 015E-01

4. 134E-02

6. 394E-02

3. 504E-01

4. 289E-02

5. 145E-02

1. 684E-01 4 048E-02

3. 462E-01

1. 603E-01

1. 292E-01

4. 701E-01 2 890E-01

1. 183E+00 3.483E+00 1.1i8E-0!

2.455E+00 7 212E-02 2.777E-01 MDA error

3. 613E-02

2. 790E-03

3. 829E-03

3. 120E-02

3. 786E-03

4. 773E-03

1. 03E-02

3. 530E-03

2. 124E-02

1. 268E-02

8. 931E-03

4. 024E-02

2. 096E-02

7. 368E-02

2. 960E-01

9. 102E-03 4.255E-01

4. 490E-03

1. 835E-02 Act/MDA 0.228

-0.355 0.365 -0.580 0.111 0.052 0.411 -0.100 0.222 -0.085 -0.185 0.496 0.256 0.418 0.179 4.982 0.441 0.560 0.105 0 w, ? "/j ý"r 4 4ý!_ be &e-

REPORT NAME DET LIM (V1.1) REPORT DATE 9-JAN-2007 11:49 REQUESTOR

CAS CYAPCO HADDAM NECK STATION DETECTION LIMIT CONFIRMATION REPORT PAGE 1 OF Sample ID Sample Title Sample Time Count Time Sample Qauntity Nuclide Library Analyzed By Sample Media Sample Shelf

• 070109003 FSS SOIL 9527-0005-026F 9-JAN-2007 09:10 9-JAN-2007 11:31 1.29600E+03 GM FSS DIRT CAS 1LMAR

0 Detector

1 Required LLD File : CASLLD:pge_fss dirt.DAT Reqtkired Meaured Nuclide LLD (uy*/GM)

VALUE (u/i/GM) U MN-54 CO-60 NB-94 AG-108M CS-134 CS-137 EU-152 EU-154 EU-155 AM-241

6. 960E-01

1. 500E-01

2. 850E-01 2.860E-01

1. 800E-01

1. 800E-01 4.04BE-01

3. 720E-01

1. 570E+01

1. 030E+00 4.134E-02 1.416E-01 6.394E-02 4.289E-02 4.048E-02

1. 951E+00 3.462E-01 1.603E-01 1.292E-01 2.777E-01 LLD MET Passed Okay Passed Passed Passed Okay Passed Passed Passed Passed End Of Report

( 1 Page )

REPORT NAME QA CHECK (V9.1) REPORT DATE 9-JAN-2007 11:49 REQUESTOR

CAS CYAPCO HADDAM NECK STATION POST NID QA ANALYSIS TITLE FSS SOIL 9527-0005-026F PAGE I

OF SAMPLE No. SAMPLE TYPE COUNT TIME SAMPLE TIME LIBRARY 070109003 DIRT/SEDIMENT 9-JAN-2007 11:31:54. 9-JAN-2007 09:10:00. FSS DIRT OPERATOR NAME

CAS SAMPLE GEOMETRY

1LMAR SAMPLE QUANTITY

1.29600E+03 DETECTOR

DET 1 PEAK ENERGY ISOTOPE ENERGY DIFF (KEV)

K-40 CO-60 CS-137 TL-208 PB-212 BI-214 PB-214 AC-228 1460.80 1332.49 661.65 583.14 238.63 609.31 351.92 911.07 -0.77 -0.29 -0.01 -0.12

0. 12 0.17 0.27 0.07

-0.07 DECAY CORR pCi/GM

8. 478E+00 1.416E-01

1. 951E+00

1. 937E-01 4.053E-01

9. 078E-01

9. 282E-01 6 996E-01 1.371E+01 1.161E+01 1.951E+00 1.416E-01

• Peak
• Peak
• Peak
• Peak
• Peak
• Peak
• Peak
• Peak COMMENTS FWHM FWHM FWHM FW14M FWHM FWHM FWHM FWHM 1.4 2.2 1.7 1.8 0.90 1.2 1.1 1i1 AVG ENERGY DIFF =

TOTAL GAMMA ACTIVITY Total NP Activity Total FP Activity Total AP Activity 74.89 KeV Peak was used in identifying 77.37 KeV Peak was used in identifying 2 isotopes 2 isotopes UNIDENTIFIED/REJECTED PEAKS GAMMA/SEC ENERGY NET AREA FWHM GAMMA/SEC /GM POTENTIAL ID % ERROR FLAG ACTIVITY 771.60

12.

1.47 1.901E+00 1.467E-03 30.5 P AC-228 2.556E+00 Total Unidentified/Rejected Peaks = % Unidentified/Rejected Peaks = 5 1 ,25 Flags: U - Unknown Line R - Rejected During Analysis P - Positively Identified (line not in analysis library)

REPORT NAME

• QA CHECK (V9. 1)

PAGE 2 OF REPORT DATE 9-JAN-2007 11:49 REQUESTOR CAS CYAPCO HADDAM NECK STATION POST NID QA ANALYSIS Performed by: A Reviewed by:

• • • QEnd Of Report

( 2 Pages )

• 9-JAN-2007 12:07:17.18 CONNECTICUT YANKEE HADDAM NECK STATION

AMPLE TITLE FSS SOIL 9527-0005-027F

ýEASON FOR ANALYSIS: Site Characterization AMPLE ID

070109004

• SAMPLE GEOMETRY

1LMAR 3AMPLE TIME

9-JAN-2007 09:15:

• GEO EFFICIENCY DATE: 13-JAN-2006

'AMPLE TYPE

DIRT/SEDIMENT

• SAMPLE QUANTITY

1.39000E+03 GM

~****** *** ********************** )ETECTOR

DET 1

• LIBRARY

FSS DIRT

.AST ENERGY CAL

9-JAN-2007 07:30:

• ENERGY TOLERANCE: 2.00000

\\EV/CHANNIEL

4.99727E-01

• HALF LIFE RATIO : 9.00000 3TART CHANNEL

100

• END CHANNEL

4096

\\CQ DATE & TIME

9-JAN-2007 11:50:

• DEADTIME

(%)

0.0%

?RESET LIVE TIME

0 00:16:40

• SENSITIVITY

5.00000 ELAPSED REAL TIME 1000.3 Secs

• GAUSSIAN SEN

10.00000

'LAPSED LIVE TIME 1000.0 Secs

• CORRECTION FACTOR:

1.OOOOOE+06 )ECAYED TO 0 DAYS HOURS FILE IDENT

CAS$DISK: [NEU.SAMPLE.RP.NEW]070109004 ADC1 DIRTSEDIMENT.CNF;!

kNALYSES

PEAK V16.8 NID V3.2 MINACT V2.8 WTMEAN V1.8

-ollected by : COCO ZEVIEWED BY 'OMMENTS ?ost-NID Peak Search Report it Energy 0 77.14* 0 186.05* 0 210.00 4 238.68* 4 241.79* 0 295.39* 0 338.49* 0 352.03* 0 510.21* 0 583.26* 0 09.49* 0 661. 69* 0 727.89 0 767.95 0 911.24 0 969.27 0 1119. 95* 0 1173.40* Area Bkgnd FWHM Channel Left Pw %Err 152 7 56.8 Fit Nuclides 79 146 1.09 154.73 44 28 178 97 101 40 166 31 70 148 762 30 25 50 31 44 42 120 69 87 78 77 62 42 44 28 23 39 9 4 7 24 7 11 0.58 1.26 1.16 1.71 1.37 1.00 1.09 1.41 1.18 1.75 1.27 0.75 2.45 2.02

1. 02 2.02 1.94 372.77 420.71 478.17 484.38 591.74 678.09 705.20 1022.20 1168.64 1221.24 1325.93 1458.70 1539.07 1826.62 1943.10 2245.70 2353.08 369 417 473 473 587 675 702 1014 1163 1215 1319 1454 1531 1820 1931 2239 2345 8 91.7 6101.8 16 22.2 16 47.0 11 38.9 9 77.4 9 21.2 15102.0 11 37.6 11 20.6 14 8.0 12 55.0 13 49.7 14 36.1 24 92.3 14 39.5 15 47.8 3.29E+00 PB-214 PB-212 RA-226 AC-228 PB-212 PB-214 PB-214 AC-228 PB-214 TL-208 BI-214 CS-137 BI-212 BI-214 AC-228 AC-228 BI-214 CO-60

PoSt-NID Peak Search Report (continued) Sample ID : 070109004 Page Acquisition date : 9-JAN-2007 11:50:19 It Energy Area Bkgnd FWHM Channel Left Pw %-Err Fit Nuclides 1331.91* 1460.01* 32 194 8 2.85 2671.60 4 2.17 2929.16 2665 11 52.2 2921 14 15.1 CO-60 K-40

-ombined Activity-MDA Report 3ample ID

070109004 Identified Nuclides Page :

3 Acquisition date : 9-JAN-2007 11:50:19 uclide .C-4o0 i 20-60 2S-137 L - 208 H1-212 ?B-212 3I-214 PB-214 RA-226 kC-228 Activity (pCi/GM)

9. 782E+00

1. 716E-01

2. 507E+00 2 085E-01

7. 612E-01 4. 259E-01

9. 189E-01

7. 097E-01

1. 206E+00

6. 272E-01 Act error

1. 591E+00

6. 120E-02

3. 084E-01 8.046E-02

4. 237E-01

9. 881E-02

1. 715E-01

1. 297E-01

1. 108E+00

1. 877E-01 MDA (pCi/GM) 4.412E-01 4.963E-02

6. 291E-02

5. 759E-02

3. 848E-01 7.406E-02 8.201E-02

9. 786E-02

9. 314E-01

1. 458E-01 MDA error

2. 710E-02

3. 033E-03

5. 861E-03

4. 884E-03 3.295E-02 5.074E-03

7. 193E-03

6. 631E-03 5.802E-02 7.894E-03 Act/MDA 22.171 3.458 39.845 3.621 1.978 5.752 11.205 7.253 1.295 4.302 Non-Identified Nuclides iuclide 3E-7 14N-54 TB-94 RU-106 kG-108M kG-110M SB-125

-S-134 EU-152 EU-154 EU-155 RA-223 TH-228 PA-234 TH-234 U-235 kM-241 Key-Line Activity K.L. (pCi/GM) Ided 4.446E-02 1.923E-02 -5.997E-03 -1. 249E-01

7. 360E-03

-2. 316E-03 -4.587E-02 -1. 829E-03 -9. 343E-02 -1.367E-02 8.471E-02

7. 432E-02

3. 095E-02 2.316E-01

+ 8 041E-01

7. 315E-02

+ 4.031E-02 Act error 2.495E-01 2.747E-02 2.125E-02 1.997E-01 2.263E-02 2.406E-02 6.906E-02 2.294E-02 1.611E-01 8.338E-02 7.908E-02 1.569E-01 2.285E+00 1.330E-01 1.208E+00 6.722E-02

1. 633E-01 MDA (pCi/GM) 4.890E-01 6 144E-02 4 052E-02 3.480E-01

4. 851E-02 4.397E-02 1.227E-01

4. 199E-02 2.537E-01 1.588E-01 1.532E-01 2 729E-01 3 926E+00 1.048E-01 2.298E+00

7. 569E-02

2. 954E-01 MDA error 3.523E-02

4. 146E-03 2.426E-03 3.099E-02

4. 281E-03

4. 080E-03 8.037E-03

3. 662E-03

1. 557E-02 1.256E-02

1. 059E-02 1.980E-02

3. 337E-01 8.529E-03

3. 984E-01

4. 712E-03

1. 952E-02 Act/MDA 0.091 0.313

-0.148 -0.359 0.152 -0.053 -0.374 -0.044 -0.368 -0.086 0.553 0.272 0.008 2 211 0.350 0.966 0,136 b C 6

REPORT NAME

DET LIM (V1.1)

REPORT DATE 9-JAN-2007 12:07 REQUESTOR CAS CYAPCO HADDAM NECK STATION DETECTION LIMIT CONFIRMATION REPORT Sample ID 070109004 Sample Title FSS SOIL 9527-0005-027F Sample Time

9-JAN-2007 09:15 Count Time

9-JAN-2007 11:50 Sample Qauntity

1.39000E+03 GM Nuclide Library

FSS DIRT Analyzed By

CAS Sample Media

ILMAR Sample Shelf

0 Detector

1 Required LLD File

CASLLD:pge fss dirt.DAT Requred M

sured Nuclide LLD (u4*/GM) VALUE (u, 1/GM) PAGE 1 OF MN-54 CO-60 NB-94 AG-108M CS-134 CS-137 EU-152 EU-154 EU-155 AM-241

6. 960E-01

1. 500E-01 2 850E-01

2. 860E-01

1. 800E-01

1. 8OOE-01 4 040E-01

3. 720E-01

1. 570E+01

1. 030E+00 S6. 144E-02

1. 716E-01 4 052E-02 4.85!E-02 S4. 199E-02

2. 507E+00

2. 537E-01 1.588E-01 S1.

532E-01

2. 954E-01 LLD MET Passed Okay Passed Passed Passed Okay Passed Passed Passed Passed End Of Report

( 1 Page )

REPORT NAME QA CHECK (V9.1) REPORT DATE 9-JAN-2007 12:07 REQUESTOR

CAS CYAPCO HADDAM NECK STATION POST NID QA ANALYSIS TITLE FSS SOIL 9527-0005-027F PAGE 1 OF SAMPLE No.

070109004 SAMPLE TYPE

DIRT/SEDIMENT COUNT TIME

9-JAN-2007 11:50:19.

SAMPLE TIME

9-JAN-2007 09:15:00.

OPERATOR NAME

CAS SAMPLE GEOMETRY

ILMAR SAMPLE QUANTITY

1.39000E+03 DETECTOR

DET 1 LIBRARY

FSS DIRT PEAK ENERGY ISOTOPE ENERGY DIFF (KEV)

K-40 CO-60 CS-137 TL-208 EBI-212 PB-212 EI-214 PB-214 RA-226 AC-228 1460.80 1332.49 661.65 583.14 727.17 238.63 609.31 351.92 186.21 911.07 -0. 79 -0.58 0.04 0.12 0.72 0.06 0.18 0.11 -0. 16 0.17 -0.01 DECAY CORR pCi/GM

9. 782E+00

1. 716E-01

2. 507E+00

2. 085E-01

7. 612E-01

4. 259E-01

9. 189E-01

7. 097E-01

1. 206E+00

6. 272E-01 1.732E+01 1.464E+01 2.507E+00 1.716E-01 COMMENTS Peak

-WHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM 2.2 2.9 1.3 1.2 0.75 1.2 1.8 1.1 0.58 2.0 AVG ENERGY DIFF = TOTAL GAMMA ACTIVITY Total NP Activity Total FP Activity Total AP Activity 77.14 KeV Peak was used in identifying 2 isotopes UNIDENTIFIED/REJECTED PEAKS GAMMA/SEC ENERGY NET AREA FWHM GAMMA/SEC /GM POTENTIAL ID % ERROR FLAG ACTIVITY 510.21

31.

1.41 3.562E+00 2.563E-03 51.0 P U AC-228 1.483E+01 ANN-RD 0.OOOE+00 Total Unidentified/Rejected Peaks o Unidentified/Rejected Peaks 1 5.00 Flags: U - Unknown Line R - Rejected During Analysis P - Positively Identified (line not in analysis library)

REPORT NAME

QA CHECK (V9g.)

REPORT DATE 9-JAN-2007 12:07 REQUESTOR CAS CYAPCO HADDAM NECK STATION POST NID QA ANALYSTS Performed by: PAGE 2 OF Reviewed by: I 7 End Of Report 2 Pages )

9-JAN-2007 12:24:48.34 CONNECTICUT YANKEE HADDAM NECK STATION

AMPLE TITLE FSS SOIL 9527-0005-028

,EASON FOR ANALYSIS: Site Characterizat 'AMPLE ID

070109005

AMPLE TIME

9-JAN-2007 09:20:

AMPLE TYPE

DIRT/SEDIMENT

• SAMPLE GEOMETRY

ILMARSAND

• GEO EFFICIENCY DATE: 13-JAN-2006
• SAMPLE QU-ANTITY

1.49400E+03 GM

)ETECTOR DET 1

• LIBRARY

FSS DIRT

,AST ENERGY CAL

9-JAN-2007 07:30:

• ENERGY TOLERANCE:

2.00000 -EV/CHANNEL

4.99727E-01

• HALF LIFE RATIO

9.00000

'TART CHANNEL

100 END CHANNEL

4096

ýCQ DATE & TIME

9-JAN-2007 12:07:

• DEADTIME

(%)

0.0%

ýRESET LIVE TIME

0 00:16:40

• SENSITIVITY

5.00000

'LAPSED REAL TIME 1000.2 Secs

• GAUSSIAN SEN

10.00000

,LAPSED LIVE TIME 1000.0 Secs

• CORRECTION FACTOR:

1.OOOOOE+06 )ECAYED TO 0 DAYS HOURS

'ILE IDENT

CAS$DISK: [NEU.SAMPLE.RP.NEW] 070109005_ADC1_DIRTSEDIMENT.CNF;1 kNALYSES

PEAK V16.8 NID V3.2 MINACT V2.8 WTMEAN V1.8

-ollected by : COCO ZEVIEWED BY IOMMENTS LU-, ?ost-NID Peak Search Report It Energy 0 74.48* 0 777.28* Area Bkgnd FWHM Channel 0 4 0 0 0 0 0 0 0 6 6 0 0 0 0 185.93* 238.66* 295.61* 339.02* 352.05* 583.26* 609.37* 661.69* 911.39 965.15 968.58 1121. 05* 1173.50* 1459.89* 1763.09* 127 127 64 238 99 65 162 60 155 777 42 11 33 28 15 194 19 183 0.97 149.41 127 0.79 155.00 Left Pw %Err 143 10 43.6 153 7 34.3 Fit Nuclides 145 82 90 67 86 27 4 20 3 2 6 14 11 0 0 1.06 1.18 0.95 1.24 0.94 1.34 1.32 1.44 1.22 1.34 2.94 1.67 1.71 1.85 2.01 372.52 478.12 592.19 679.15 705.24 1168 65 1220.99 1325.93 1826.93 1934.84 1941.72 2247 90 2353.27 2928.92 3538.95 368 471 587 674 700 1162 1213 1318 1821 1933 1933 2241 2347 2921 3533 9 72.3 23 18.1 11 42.6 12 58.4 12 27.7 12 43.3 15 17.1 13 7.5 13 35.4 15 66.9 15 43.8 16 79.3 12109.6 14 14.5 11 46.6

1. 15E+00 8.30E-01 PB-212 PB-214 PB-214 PB-212 RA-226 PB-212 PB-214 AC-228 PB-214 TL-208 BI-214 CS-137 AC-228 AC-228 AC-228 BI-214 CO-60 K-40 BI-214

ombined Activity-MDA Report ample ID

070109005 Identified Nuclides Page :

2 Acquisition date

9-JAN-2007 12:07:51 uclide

.- 40 10-60 S-137 ýL-208 'B-212 1-214 S-214 A-226 ýC-228 Activity (pCi/GM)

9. 493E+00

6. 585E-02 2.534E+00 1.774E-01

5. 711E-01

8. 442E-01 6.683E-01 1.765E+00 6.389E-01 Act error

1. 490E+00 7.226E-02 3.011E-01

7. 819E-02 1.098E-01 1.463E-01 1.581E-01 1.283E+00 1.529E-01 MDA (pCi/GM)

4. 281E-01 1.199E-01 4.519E-02 5.548E-02

7. 564E-02

6. 528E-02 1.045E-01

9. 990E-01 1.597E-01 MDA error 2.601E-02 7.282E-03 4 16!E-03 4.603E-03 4.931E-03 5 619E-03

6. 329E-03 6.793E-02 9.232E-03 Act/MDA 22.175 0.549 56,070 3.197 7.550 12.933 6.394 1.767 4.000 Non-Identified Nuclides

[uclide ,E-7 IN-54 TB-94 IU-106 ýG-108M ýG-IlOM )B-125 'S-134 ,JU-152 PU-154 ýU-155 ýI-212 A-223 'H-228 DA-234 'H-234 J-235 kM-241 Key-Line Activity K.L. (pCi/GM) Ided 1.899E-02 -7.284E-03 -1. 317E-02 -9. 754E-02 -3.591E-03 3.905E-03 -1. 152E-01 -9.780E-03 1.591E-01 -2.075E-02 -2.993E-02 1.078E-01 -4.634E-02 2.992E-01 4.053E-01 + 2.126E+00

1. 071E-01

+

7. 276E-02 Act error 2.290E-01 2.572E-02 2.329E-02

2. 512E-01 1.818E-02 2.722E-02 8.373E-02 1.896E-02 1.252E-01 6.604E-02 9.468E-02 2.489E-01 1 778E-01 2.361E+00 1.439E-01 1.520E+00 7.779E-02

1. 876E-01 MDA (pCi / GM) 4.485E-01 4.770E-02 3.981E-02 4.579E-01 3.371E-02 5.152E-02 1.325E-01 3.075E-02 3.566E-01 1 223E-01 1.563E-01

5. 138E-01 2.766E-01 4.113E+00 1.301E-01

2. 972E+00

7. 898E-02 3.446E-01 MDA error 3.118E-02 3.326E-03 2.511E-03 4.009E-02 2.922E-03 4.721E-03 8.313E-03 2.630E-03 2.169E-02 9.521E-03 1.127E-02 4.396E-02 1.725E-02 3.837E-01 1.164E-02 5.217E-01 5.373E-03 2.358E-02 Act/MDA

0. 042

-0.153 -0.331 -0.213 -0.107 0.076 -0.869 -0.318 0.446 -0.170 -0.191 0.210 -0.168

0. 073 3.116

0. 716 1.356 0.211 0

ye~~ ~~&e

REPORT NAME

DET LIM (Vi.1)

REPORT DATE 9-JAN-2007 12:24 REQUESTOR

CAS CYAPCO HADDAM NECK STATION DETECTION LIMIT CONFIRMATION REPORT PAGE 1 OF Sample ID Sample Title Sample Time Count Time Sample Qauntity Nuclide Library 070109005 FSS SOIL 9527-0005-028F 9-JAN-2007 09:20 9-JAN-2007 12:07 1.49400E+03 GM FSS DIRT Analyzed By

CAS Sample Media

ILMARSAND Sample Shelf

0 Detector 1

Required LLD File

CAS LLD:pge_fsssand.DAT Required M4*sured Nuclide LLD (',/GM)

VALUE (Ti/GM) _u___ DIRT/SEDIMENT FSS (TLMARSA LLD MET MN-54 CO-60 NB-94 AG-108M CS-134 CS-137 EU-152 EU-154 EU-155 AM -241

6. 960E-01

1. 500E-01

2. 850E-01

2. 860E-01

1. 800E-01

1. 800E-01

4. 040E-01

3. 720E-01

1. 570E+01

1. 030E+00 S4.

770E-02 6.585E-02 3.981E-02 3.371E-02 3.075E-02

2. 534E+00 3.566E-01 1.223E-01 1.563E-01 3,446E-01 Passed Okay Passed Passed Passed Okay Passed Passed Passed Passed End Of Report

( 1 Page )

REPORT NAME

QACHECK (V9.1)

REPORT DATE 9-JAN-2007 12:24 REQUESTOR

CAS CYAPCO HADDAM NECK STATION POST NID QA ANALYSIS TITLE :

FSS SOIL 9527-0005-028F PAGE 1 OF SAMPLE No.

0701.09005 SAMPLE TYPE

DIRT/SEDIMENT COUNT TIME 9-JAN-2007 12:07:51.

SAMPLE TIME

9-JAN-2007 09:20:00.

OPERATOR NAME

CAS SAMPLE GEOMETRY : 1LMARSAND SAMPLE QUANTITY

1.49400E+03 DETECTOR

DET 1 LIBRARY ISOTOPE

FSS DIRT PEAK ENERGY ENERGY DIFF (KEV)

K-40 CO-60 CS-137 TL-208 PB-212 BI-214 PB-214 RA-226 AC-228 1460.80 1332.49 661.65 583.14 238.63 609.31 351.92 186.21 911.07 -0.91 0.00 0. 04 0.12 0.04

0. 05 0.13

-0.28 0.32 -0.05 DECAY CORR pCi/GM 9 493E+00 6.585E-02 2.534E+00

1. 774E-01

5. 711E-01 8.442E-01 6.683E-01 1.765E+00

6. 389E-01 1.676E+01 1.416E+01 2.534E+00 6.585E-02

• Peak FWHM

=

• Key Line
• Peak FWHM =
• Peak FWHM =
• Peak FWHM =
• Peak FWHM

=

• Peak FWHM =
• Peak FWHM =
• Peak FWHM =

COMMENTS 1.8 Not Found 1.4 1.3 1.2 1.3 0.94 1.1 1.2 AVG ENERGY DIFF = TOTAL GAMMA ACTIVITY Total NP Activity Total FP Activity Total AP Activity 74.48 KeV Peak was used in identifying 2 isotopes 77.28 KeV Peak was used in identifying 2 isotopes UNIDENTIFIED/REJECTED PEAKS G /SEC ENERGY NET AREA FWHM GAMMA/SEC /GM No Unidentified/Rejected Peaks Performed by: %£ "/ POTENTIAL ID % ERROR FLAG ACTIVITY Reviewed by:

• • • • End Of Report

( 1 Page ) *

• • • • • • • • • 9*********

9-JAN-2007 11:31:28.29 CONNECTICUT YANKEE HADDAM NECK STATION SAMPLE TITLE FSS SOIL 9527-0005-029F REASON FOR ANALYSIS: Site Characterization SAMPLE ID

070109002

• SAMPLE GEOMETRY ILMARSAND SAMPLE TIME

9-JAN-2007 09:30:

• GEO EFFICIENCY DATE: 13-JAN-2006 SAMPLE TYPE

DIRT/SEDIMENT

• SAMPLE QUANTITY 1.40800E+03 GM DETECTOR

DET 1

• LIBRARY FSS DIRT LAST ENERGY CAL

9-JAN-2007 07:30:

• ENERGY TOLERANCE: 2.00000 KEY/CHANNEL

4.99727E-01

• HALF LIFE RATIO

9.00000 START CHANNEL

100 END CHANNEL

4096 ACQ DATE & TIME

9-JAN-2007 11:14:

• DEADTIME

(%)

0.0%

PRESET LIVE TIME

0 00:16:40

• SENSITIVITY

5.00000 ELAPSED REAL TIME 1000.3 Secs

• GAUSSIAN SEN

10.00000 ELAPSED LIVE TIME 1000.0 Secs

• CORRECTION FACTOR:

1.OOOOOE+06 DECAYED TO 0 DAYS HOURS FILE IDENT

CAS$DISK: [NEU.SAMPLE.RP.NEW]070109002_ADCIDIRTSEDIMENT.CNF;1 WNALYSES

PEAK V16.8 NID V3.2 MINACT V2.8 WTMEAN V1.8

-ollected by : COCO REVIEWED BY ýOMMENTS ?ost-NID Peak Search Report it Energy 4 74.67* 4 77.09* Area Bkgnd FWHM Channel Left Pw %Err Fit Nuclides 0 0 4 0 0 0 0 0 0 0 0 0 0 0 92.62* 185. 85* 238.65* 295. 68* 338.34* 351. 84* 583 47* 609.30* 661. 70* 911.35 1120.13" 1174.06* 1331.31* 1459. 77* 114 il1 46 98 203 135 65 227 54 210 922 40 56 27 35 174 134 139 101 83 69 84 33 17 15 20 4 19 0 3 1.13

1. 66 1.08 1.23

1. 14 1.21 1.26

1. 52 1.49 1.30 1.58

1. 93 5.20 2.08 185.72 372.36 478.09 592.32 677.79 704.83 1169.07 1220.87 1325.95 1826.84 2246.06 2354.39 2670.40 2928.68 183 367 474 586 672 698 1162 1213 1318 1819 2239 2346 2662 2921 7

10 34 11 11 14 12 14 15 16 16 17 15 14 141 1.24 149.78 131 0.98 154.63 145 15 39.6 1.70E+00 145 15 37.4 88.4 49.7 20.9 31.4 55.2 21.8 50.5 16.3 6.8 59.3 31.4 87.6 36.2 15.9 1.62E+00 PB-212 PB-214 PB-214 PB-212 RA-226 PB-212 PB-214 AC-228 PB-214 TL-208 BI-214 CS-137 AC-228 BI-214 CO-60 CO-60 K-40

.ombined Activity-MDA Report 3ample ID

070109002 Identified Nuclides Page 2

Acquisition date

9-JAN-2007 11:14:31 auclide 1-o-60 7S-137

L-208

)B-212 ý1-214

B-214

ýA-226 ýC-228 Activity (pCi /GM)

9. 075E+00

1. 659E-01 3 191E+00

1. 698E-01

5. 174E-01

1. 309E+00

9. 829E-01 2 858E+00 6.539E-01 Act error 1.545E+00 5.672E-02 3.661E-01

8. 686E-02 1.134E-01 2.100E-01 1.814E-01 1.435E+00 2.735E-01 MDA (pCi/GM) 4.542E-01

1. 392E-02 5.392E-02 6 261E-02 8 423E-02 8.644E- 02

1. 041E-01

9. 394E-01

1. 308E-01 MDA error 2.759E-02 8.455E-04 4.965E-03 5.194E-03 5.491E-03

7. 441E-03 6.302E-03

6. 388E-02 7.559E-03 Act/MDA 19.980 11.922 59.182 2.712 6.142 15.148 9.446 3.042 5.000 Non-Identified Nuclides quclide 3E-7 4N-54 4B-94 ZU-106 kG-108M kG-I1OM 3B-125

'S-134 ýU-152 ,U-154 EU-155 ý1-212 RA-223 FH-228 DA-234 FH -234 J-235 ,M-241 Key-Line Activity K.L. (pCi/GM) Ided

9. 863E-04

6. 058E-03

-1.341E-02 3.341E-02

7. 159E- 03

2. 862E-02

-9. 400E-03 -1. 251E-02

1. 033E-01

-7. 192E-02 -7. 154E-03 1.362E-01 -8.072E-02 -2. 588E-01 3.776E-01 +

1. 541E+00 1.734E-01

+

8. 024E-02 Act error 2.677E-01 3.068E-02 2.242E-02

1. 827E-01 2.507E-02 1.904E-02 8.993E-02 2.355E-02 1.606E-01 9.104E-02 9.786E-02 2.344E-01 1.716E-01 2.676E+00 1.451E-01 1.638E+00 8.701E-02 1.867E-01 MDA (pCi/Gm)

5. 131E-01 6.200E-02 3.787E-02 3.982E-01 5.283E-02

5. 226E- 02

1. 705E-01

3. 785E-02 3.774E-01 1.300E-01 1.664E-01 5.076E-01 2.592E-01 4.544E+00 1.358E-01

3. 118E+00

8. 729E-02 3.470E-01 MDA error 3.567E-02 4.323E-03 2.389E-03 3.486E-02 4.579E-03 4.789E-03 1.070E-02 3.238E-03 2.295E-02 1.012E-02 1.199E-02 4.343E-02 1.616E-02 4.238E-01 1.216E-02 5.474E-01 5.939E-03 2.374E-02 Act/MDA 0.002

0. 098

-0.354 0.084 0.136 0.548 -0.055 -0.330 0.274 -0.553 -0.043 0.268 -0.311 -0.057 2.781 0.494 1.986 0.231 0" 5 ?ý ~' i ( ý /e I "L,, ýA-' OC

REPORT NAME

DET LIM (V1.1)

REPORT DATE 9-JAN-2007 11:31 REQUESTOR

CAS CYAPCO HADDAM NECK STATION DETECTION LIMIT CONFIRMATION REPORT PAGE I

OF Sample ID Sample Title Sample Time Count Time Sample Qauntity Nuclide Library Analyzed By Sample Media Sample Shelf 070109002 FSS SOIL 9527-0005-029F 9-jAN-2007 09:30 9-JAN-2007 11:14 1.40800E+03 GM FSS DIRT CAS ILMARSAND

0 Detector 1

Required LLD File

CASLLD:pge_fsssand.DAT Req ired M&suired Nuclide LLD (qe/GM)

'VALUE (uC_/GM) - DIRT/SEDIMENT FSS (1LMARSA LLD MET MN-54 CO-60 NB -94 AG-108M CS-134 CS-137 EU-152 EU-154 EU-155 AM-241

6. 960E-01

1. 500E-01

2. 850E-01

2. 860E-01

1. 800E-0i

1. BOOE-01

4. 040E-01

3. 720E-01

1. 570E+01

1. 030E+00

6. 200E-02

1. 659E-01 3.787E-02

5. 283E-02

3. 785E-02

3. 191E+00 3.774E-01 1.300E-01

1. 664E-01

3. 470E-01 Passed Okay Passed Passed Passed Okay Passed Passed Passed Passed End Of Report

( 1 Page )

REPORT NAME

QACHECK (V9.1)

REPORT DATE 9-JAN-2007 11:31 REQUESTOR CAS CYAPCO HADDAM NECK STATION POST NID QA ANALYSIS TITLE FSS SOIL 9527-0005-029F PAGE 1 OF SAMPLE No. SAMPLE TYPE COUNT TIME SAMPLE TIME LIBRARY 070109002 DIRT/SEDIMENT 9-JAN-2007 11:14:31. 9-JAN-2007 09:30:00. FSS DIRT OPERATOR NAME

CAS SAMPLE GEOMETRY

!1LMARSAND SAMPLE QUANTITY

1.40800E+03 DETECTOR

DET 1 PEAK ENERGY ISOTOPE ENERGY DIFF (KEV)

K-4 0 CO-60 CS-137 TL-208 PB-212 BI-214 PB-214 RA -226 AC-228 1460.80 1332.49 661. 65 583.14 238.63 609.31 351.92 186.21 911.07 -1.03 -1 18 0.05 0.33 0.02 -0.01 -0.08 -0.36 0.28 DECAY CORR pCi/GM

9. 075E+00

1. 659E-01

3. 191E+00

1. 698E-01

5. 174E-01 1.309E+00

9. 829E-01

2. 858E+00 6.539E-01 1.892E+01 1.557E+01 3.191E+00 1.659E-01 COMMENTS Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM Peak FWHM 2.1 5.2 1.5 1.3 1.

1.5 1.2 1.7 1.3 AVG ENERGY DIFF = 0.22 TOTAL GAMMA ACTIVITY Total NP Activity Total FP Activity Total AP Activity 74.67 KeV Peak was used in identifying 2 isotopes 77.09 KeV Peak was used in identifying 2 isotopes UNIDENTIFIED/REJECTED PEAKS GAMMA/SEC ENERGY NET AREA FWHM GAMMA/SEC /GM POTENTIAL ID % ERROR FLAG 92.62

46.

1.13 2.888E+00 2.051E-03 44.2 P PB X-RRAY P AC-228 U TH-234 ACTIVITY 0.000E+00 1.594E+00 2.063E+00 Total Unidentified/Rejected Peaks = % Unidentified/Rejected Peaks = 6 1 .25 Flags: U - Unknown Line R - Rejected During Analysis P - Positively Identified (line not in analysis library)

REPORT NAME - QACHECK (V9.1) REPORT DATE 9-JAN-2007 11:31 REQUESTOR

CAS CYAPCO HADDAM NECK STATION POST NID QA ANALYSIS Perf ormed by:

j/

• ay0 /

Id&- Reviewed by: ___ PAGE 2 OF

• • • • End Of Report 2 Panes

)

9-JAN-2007 11:13:47.18 CONNECTICUT YANKEE HADDAM NECK STATION

• • • • • ~*******************0***************

SAMPLE TITLE FSS SOIL 9527-000-'-030F REASON FOR ANALYSIS: Site Characterization SAMPLE ID

070109001

• SAMPLE GEOMETRY

!LMARSAND SAMPLE TIME

9-JAN-2007 09:55:

• GED EFFICIENCY DATE: 13-JAN-2006 SAMPLE TYPE

DIRT/SEDIMENT

• SAMPLE QUANTITY

1.43400E+03 GM DETECTOR

DET 1

• LIBRARY

FSS DIRT LAST ENERGY CAL

9-JAN-2007 07:30:

• ENERGY TOLERANCE:

2.00000 KEV/CHANNEL

4.99727E-01

• HALF LIFE RATIO

9.00000 START CHANNEL

100

• END CHANNEL 4096 ACQ DATE & TIME

9-JAN-2007 10:56:

• DEADTIME

(%)

0.0%

PRESET LIVE TIME 0 00:16:40

• SENSITIVITY

5.00000 ELAPSED REAL TIME :

1000.2 Secs

• GAUSSIAN SEN

10.00000 ELAPSED LIVE TIME 1000.0 Secs

• CORRECTION FACTOR:

1.00000E+06 DECAYED TO 0 DAYS HOURS FILE IDENT

CAS$DISK: [NEU.SAMPLE.RP.NEW]070109001 ADCI DIRTSEDIMENT.CNF;1 ANALYSES

PEAK V16.8 NID V3.2 MINACT V2.8 WTMEAN V1.8 Collected by : JOHN N

REVIEWED BY COMMENTS Post-NID Peak Search Report it Energy 0 78.42* Area Bkgnd FWHM Channel 73 320 0.61 157.29 Left Pw %Err 151 11103.2 Fit Nuclides PB-214 PB-212 0 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 92.37* 238.71* 241. 62* 295.36* 338.67* 351.93

• 583 44*

609.53* 661 78* 727.85 768.67 911.23 1120.13* 1172.97* 1459.99* 1763.09* 132 221 70 105 39 214 70 140 427 31 20 57 38 14 202 22 187 68 99 52 56 47 9 29 33 12 15 6 7 7 4 3 1.78 1.17 1.90 1.10 1.33 1.23 1.53 1.20 1.51 0.79 1.39 1.57 1.74 1.04 2.00 2.63 185.20 478.21 484.05 591.68 678.44 705.00 1169.02 1221.32 1326.10 1458.63 1540.52 1826.60 2246.06 2352.21 2929.12 3538.95 179 474 474 588 672 698 1163 1215 1319 1449 1533 1821 2239 2347 2921 3529 13 46.6 16 18.1 16 71.9 8 31.0 11 78.9 12 18.9 12 29.5 13 23.4 15 11.4 14 57.5 16102.0 12 31.6 13 43.1 9 94.4 15 14.8 16 58.5

1. 55E+00 PB-212 PB-214 PB-214 AC-228 PB-214 TL-208 BI-214 CS-137 BI-212 BI-214 AC-228 BI-214 CO-60 K-40 BI-214

oombined Activ ty-MDA Report

ample ID

070109001 Identified Nuclides Page 2

Acquisition date : 9-JAN-2007 10:56:49 ilclide '0-60 'L-208 {I-212 IB-212 ýI -214 IB-214

• C-228 Activity (pCi/GM)

1. 030E+01 6.202E-02

1. 453E+00

2. 158E-0i

8. 235E-01

5. 524E-01

8. 695E-01

8. 574E-01

7. 040E-01 Act error

1. 646E+00 5.866E-02

2. 123E-01

6. 614E-02

4. 791E-01

1. 065E-01

1. 744E-01

1. 413E-01

2. 120E-01 MDA (pCi/GM) 5.734E-01 9.268E-02

6. 277E-02 4.463E-02 3.962E-01 7.030E-02

1. 024E-01 8.697E-02

1. 956E-01 MDA error 3.483E-02

5. 631E-03 5.780E-03 3.703E-03 3.390E-02 4.583E-03 8.814E-03 5.267E-03

1. 130E-02 Act/MDA 17.960 0.669 23.142 4.835 2.078 7.857 8.492 9.858 3.600 Non-Identified Nuclides Juclide

ýE-7 W-54 MB-94 ZU-106 kG-108M kG-110M 3B-125 'S-134 EU-152 !,U-154 EU-155

• h-223 ZA-226 CH-228

_A -234 PH-234 J-235

• M-241 Key-Line Activity (pCi/GM)

-2. 851E-03 -2.706E-02 -1.178E-02 1.566E-01 4.850E-03

1. 997E-02

-4. 194E-02 -7. 533E-04 1.981E-02 -7. 077E-02 -1. 379E-02 -1. 058E-01

4. 176E-01

1. 058E+00 2.423E-01

1. 270E-01 1.564E-02

-6.429E-03 K.L. Ided Act error

1. 959E-01 2.558E-02 2.246E-02

2. 150E-01

2. 765E-02 2.604E-02

8. 646E-02

2. 727E-02

1. 540E-01

8. 935E-02

9. 540E-02

1. 657E-01

6. 823E-01 2.076E+00

+ 2.510E-01 1.533E+00 4.234E-02 2.102E-01 MDA (pCi/GM) 3.887E-01 3.574E-02 3.911E-02 4.932E-01 5.301E-02 5.665E-02 1.566E-01 4.949E-02 3.207E-01 1.274E-01 1.610E-01 2.429E-01 1.202E+00 3.819E+00 1.348E-01 2.756E+00

7. 279E-02 3.684E-01 MDA error 2.702E-02 2.492E-03 2.467E-03 4.318E-02 4.595E-03 5.191E-03 9.832E-03 4.233E-03 1.950E-02 9.919E-03 1.161E-02 1.514E-02 8.175E-02 3.562E-01 1.207E-02 4.839E-01 4.952E-03 2.521E-02 Act/MDA

-0.007 -0.757 -0.301 0.318 0.091 0.352 -0.268 -0.015

0. 062

-0.555 -0.086 -0.435 0.347 0.277

1. 797 0.046 0.215

-0.017 (~) ~c,

REPORT NAME DET LIM (V1.i) REPORT DATE 9-JAN-2007 11:13 REQUESTOR CAS CYAPCO HADDAM NECK STATION DETECTION LIMIT CONFIRMATION REPORT PAGE 1 OF Sample ID Sample Title Sample Time Count Time Sample Qauntity Nuclide Library

070109001 FSS SOIL 9527-0005-030F

• 9-JAN-2007 09:55 9-JAN-2007 10:56 1.43400E+03 GM FSS DIRT Analyzed By

CAS Sample Media

iLMARSAND Sample Shelf

0 Detector

1 Required LLD File

CAS LLD:pge-fss sand.DAT Recdlired Mýsured Nuclide LLD (u2*/GM)

VALUE (uv/GM) DIRT/SEDIMENT FSS (ILMARSA LLD MET

1) (,ý If MN-54 CO-60 NB-94 AG-108M CS-134 CS-137 EU-152 EU-154 EU-155 AM-241

6. 960E-01

1. 500E-01 2.850E-01 2.860E-01

1. 8OOE-01

1. 80GE-01 4 040E-01 3.720E-01

1. 570E+01

1. 030E+00 3.574E-02 6.202E-02 3.911E-02 5.301E-02 4.949E-02 1.453E+00 3.207E-01 1.274E-01 1.610E-01 3.684E-01 Passed Okay Passed Passed Passed Okay Passed Passed Passed Passed End Of Report

( 1 Page )

REPORT NAME

QA CHECK (V9.1)

REPORT DATE 9-JAN-2007 11:13 REQUESTOR CAS CYAPCO HADDAM NECK STATION POST NID QA ANALYSIS TITLE FSS SOIL 9527-0005-030F PAGE ! OF SAMPLE No.

070109001 SAMPLE TYPE

DIRT/SEDIMENT COUNT TIME

9-JAN-2007 10:56:49.

SAMPLE TIME

9-JAN-2007 09:55:00.

OPERATOR NAME

CAS SAMPLE GEOMETRY

ILMARSAND SAMPLE QUANTITY : 1.43400E+03 DETECTOR

DET 1 LIBRARY ISOTOPE

FSS DIRT PEAK ENERGY ENERGY DIFF (KEV)

K-40 CO-60 CS-137 TL-208 BI-212 PB-212 Bl-214 PB-214 AC-228 1460.80 1332.49 661.65 583.14 727.17 238.63 609.31 351.92 911.07 -0.81 0.00 0.13 0.31 0.68 0.08 0.21 0.01 0.16 0.09 DECAY CORR pCi/GM

1. 030E+01

6. 202E-02

1. 453E+00

2. 158E-01

8. 235E-01 5.524E-01

8. 695E-01

8. 574E-01

7. 040E-01 1.583E+01 1.432E+01 1.453E+00 6.202E-02 COMMENTS

• Peak FWHM

=

• Key Line
• Peak FWHM =
• Peak FWHM =
• Peak FWHM =
• Peak FWHM

=

• Peak FWHM =
• Peak FWHM

=

• Peak FWHM

= 2.0 Not Found 1.5 1.5 0.79 1.2 1.2 1.2 1.6 AVG ENERGY DIFF = TOTAL GAMMA ACTIVITY Total NP Activity Total FP Activity Total AP Activity 78.42 KeV Peak was used in identifying 2 isotopes UNIDENTIFIED/REJECTED PEAKS GAMMA/SEC ENERGY NET AREA FWHM GAMMA/SEC iGM POTENTIAL ID % ERROR FLAG 92.37 132. 1.78 8.278E+00 5.773E-03 23.3 P PB X-RAY P AC-228 U TH-234 ACTIVITY 0.OOOE+00 4.485E+00 5.806E+00 Total Unidentified/Rejected Peaks = I % Unidentified/Rejected Peaks = 5.88 Flags: U - Unknown Line R - Rejected During Analysis P Positively Identified (line not in analysis library)

REPORT DATE 9-JAN-2007 11:13 REQUESTOR

CAS CYAPCO HADDAM NECK STATION POST NID QA ANALYSIS Performed by:

Z U I Reviewed by: nd Of Report 2 Pages )

General Narrative 1

General Narrative for Connecticut Yankee Atomic Power Co. Work Order: 178828 SDG: MSR#06-1582 January 15, 2007 Laboratory Identification: GEL Laboratories LLC 2040 Savage Road Charleston, South Carolina 29407 (843) 556-8171 Summary Sample receipt The sample arrived at GEL Laboratories LLC. Charleston. South Carolina on December 21. 2006 for analysis. Shipping container temperature was checked. documented. and within specifications. The sample was delivered with proper chain of custody documentation and signatures. All sample containers arrived without any visible signs of tampering or breakage. Sample Identification The laboratory received the following sample: Laboratory Sample Identification Description 178828001 9527-0005-01OF Items of Note At the request of Jack McCarthy on January 9, 2006, the above sample was analyzed for Sr-90. Case Narrative Sample analyses were conducted using methodology as outlined in GEL Laboratories, LLC (GEL) Standard Operating Procedures. Any technical or administrative problems during analysis, data review, and reduction are contained in the analytical case narratives in the enclosed data package. Analytical Request One soil samples was reanalyzed for Strontium-90. Data Package The enclosed data package contains the following sections: General Narrative. Chain of Custody and Supporting Documentation, Data Review Qualifier Definitions, and data from the following fractions: Radiochemistry. 2

I certify that this data package is in compliance with the SOW, both technically and for completeness. for other than the conditions detailed above. Release of the data contained in this hard copy data package has been authorized by the Laboratory Manager or a designee, as verified by the following signature. Cheryloenes Project Manager 3

List of current GEL Certifications as of 15 January 2007 State Alaska Arizona Arkansas CLIA California Colorado Connecticut Dept. of Navy EPA Florida/NELAP Georgia Hawaii Idaho Illinois Indiana Kansas Louisiana Maryland Massachusetts Michigan Nevada New Jersey New Mexico New York North Carolina North Carolina Drinking W North Dakota

1......... 2 i ai im................

Oklahoma Pennsylvania ~ .oi1 - a o n................. South Carolina Tennessee Texas Texas NELAP U.S. Dept. of Agriculture LUS Army Corps of Engineer Utah Vermont Virginia Washington L -I Certification UST-062 AZ0668 88-0651 42D0904046 01 151CA GenEngLabs PH-0169 NFSC413 WG-I5J E87156 ._' 7 15-6 (RUN EL A P) N/A N/A 200029 C-SC-0I1 E-10332 ~........ 90129 03046 2)70 M-SC012 9903 SC12 FL NELAP E87156 11501 233 45709 R-158 9904 68-00485 10 1 20(X) / 105-8500-1/1102W20 02934 ...... _ 4-.. 0. TX213-2006A TI 04704235-06-TX S-52597 N/A 8037697376 GEL VT87 156 00151 C 1641 4

Chain of Custody and Supporting Documentation 5

Health Physics Procedure GPP-CiGGR-R5 104-003 -Attachment B-CY-001 Major Connecticut Yankee AIomic Power Company Chain of Custody Form No. 2006-00736 362 ln.un Hollow Road, liast Hampion, CT 06424 860-267-2556 Project Name: -laddan) Neck Analyses RequCsted Lah Use Only Decommissioningg... Contact Name & Phone: Comments: a6Medid Sample Container Jack McCarthy 860-267-3924 Code Type Size-Analytical Lab (Name, City, State): Code &Type General Engineering Laboratories Code 2040 Savage Road Cliarleston, SC 29407 (IC / 5~~~ ATT: Cheryl Jones (843-556-8171) Priority: D 30 D. X 14 D. 0'7 D. Other: U) Cn ~1 Sample Designation Date Time L. Comment, Preservarion Lab Sample t1) 9527-0005-OOIF 12/18/06 1110 TS G BP X 9527-0005-003F 12/18/06 1036 TS G BP X 9527-0005-004F 12/18/06 1120 TS G BP X 9527-0005-005F 12/18/06 1126 TS G BP X 9527-0005-006F 12/18/06 1141 TS G BP X 9527-0005-006FS 12118/06 1141 TS G BP X 9527-0005-007F 12/18/06 1405 TS G BP X 9527-0005-008F 12/18/06 1332 TS G( BP X 9527-0005-009F 12/18/06 1130 TS G BP X-9527-0005-010F 12/18/06 1345 TS G BP X 9527-0005-01 IF 12/18/06 1418 TS G BP X Samples Shipped Via: Internal Container NOTES: PO #: 002332 MSR #: as6-/S7Y [D LTP QA El Radwaste QA D] Non QA Fed Ex Temp.: 2 gf. C 57;11-rElUPS 7-e E!22 a6 19 Hand Custody ýiled? I) Relinquished B Date/Time

2) eived RDate/Time Custody Sea-5 ntact?

3)a teiqie By 4-Ni [c) K. [] Other N

3) Relin'LCed By Date/Time

4) Received Bý K

Date/Time Y N Bill of Lading #

5) Relinquished By Date/Time

6) Received By DateTfime

Connecticul Yankee Statement of Work for Analytical Lab Services CY-ISC-SOW-001 Figure 1. Sample Check-in List Date/TimneReceived 4'.k DK N SDG#: PA~I~~ U~C Work Order Number-0T -ý+ (1 s I Shipping Cdntainer ID.. Chain of Custody N O~ OY

7.

(~ I. Custody Seals on shipping container intact?. Yes fNo[]

2.

Custody Seals dated and signed? Yes- [ No [ IVY'-

3.

Chain-of-Custody record present? Yes,L4/No [ I

4.

Cooler emperature 7

I

5.

Vermiculite/packing materials is: Wet 1 Dry f,, ] J 6.- -Number of samples in shipping container* 4 )_J b+"

7.

Sample holding times exceeded? Yes N o NoJ(

8. Samples have:

._Zta._.hazard labels

• custodly seals

-_... appropriate sample labels

9. Samples are' Z.

in good condition -leaking broken have air bubbles

10.

Were any anomalies identified in saple receipt? Yes (I No [J-ii!. -- Description ofanomalies.(include sample numbers): Sample Custodian/Laborator:'Y VDte.C43 /} /()3 Te eto: OD ty c Telephoned to:'* 7

SAMPLE RECEIPT & REVIEW FORM PM mae oan Vient: V`, SDG/ARCOC!Work Order: i"ate Received: \\ -'2i-t JPM(A) qeview (ensulrelna-confog n ts are resolved prior to signing): fteeived By: J _____j Sample Receipt Criteria Comments/Qualifiers (Required for Non-Conforming it Shipping containers received intact Circle Applicable: scais broken darnged contaner lekiinj co dife (,dcibc) I:and sealed?.,/t Samples requiring cold Circle Coolant I ice bass blue ice dry none other dsibc) preservation within (4 + /- 2 C)? Record preservation method. Chain of custody documents included with shipment? 4 Sample containers intact and ircle Applice : scals broken contaier laking ouuaer ot( sealed? Samples requiring chemical SarPe ID's. co led a obsred pi: eservation at pro er pH? 6 VOA vials free of headspace Sple ID ntainers affected: (defined as <r6mm bubble)?__o Are Encore containers present? 7 (If yes, immediately deliver to VOA laborator_,_ Samples received within holding s and tests affected: time? i Sample ID's on COC match UD's Sarnpe ID's and cosuivers affected-on bottles? Date & time on COC amatch Sarr* UDS Affece: S& time on bottles? 9Number of container ecivedSam 'S ate: match-number d on COC? COC form isperly signed in elinuis received sections?..__._.__.__.__..._. Air ill.Tracking #s, & dditional Comments 1 V RSO RAD Receipt # i -

• If > x2 arra background is observed on samples identified as "non-Suspected Hazard Inoraion upee aregulated/non-radioactive'. contact'the Radiation Safety group for further 09 investigation.

A diological Classification7-Maximum Counts Observed*: r1 - S. a-13 Regulated? Shipped as DOT Hazardous Material? If yes, contact Waste zard Class Shipped: Manager or PMA Manager. a nt a egulate as a Foreigin 01-TT PM (or PMA) review. of Hazard classiffication:- 1' initials Date: Z 0L I 8

FW: Count for Sr-90

Subject:

RE: FW: Count for Sr-90 From: "John McCarthy" <McCarthy@CYAPCO.corn> Date: Tue, 9 Jan 2007 14:58:10 -0500 To: "Cheryl Duffy" <Cheryl. Duffy@gel. corn>

Yes, thank you.

---

Original Message -----

From: Cheryl Duffy [mai]to:Cheryl.Duify@qei com] Sent: Tuesday, January 09, 2007 3:01 PM To: John McCarthy Cc: Cheryl Jones; Amanda Rasco

Subject:

Re: FW: Count for Sr-90

Jack, Thank you on the response.

I am confirming with the lab on a TAT. Would a 7 day TAT be acceptable? Thank you Cheryl Duffy john 4cCarThy wrote: Same message, that is, 1 was requested a Sr-90 analysis on sample 17850010.i i rece.ive an e-mail stated Cheryv was out today. Original Message----- From: Cheryl Duffy [ oncuffic~e!com] Sent: Tuesday, January 09, 2 007 1:33 PM To: John McCarthy

Subject:

Re: FW: Count for Sr-90

Jack, You also mentioned a message that you left with Cheryl Jones.

Please let me know if the message is something i need to know. Thanks Cheryl Duffy John McCarthy wrote:

Confirm, nhat sammple only.

---

-Original Message -----

Fro~m: Cheryl Duffy Sent: Tuesday, January 39, 2007 12:34 PM Týo: nohn McCarthy Cc: Cev Jones; Amanda Rasco Sub~jec-_: Re: FW: Count for St-90

jack, Please confirm that you Le-quire St-90 or this one s'Di sampleo only.

Thanks Cheryl Duffy John McCarrzhy wrote: 9 of 3 1/9/2007 T43 PM

E: FW: Count for Sr-90 T understand Cheryl Jones is out today. 'From:* Jolhn McCarthy kSent:*

Tuesday, January 09, 2007 13 :06 AM

• To:* 'Cheryl Jones' Subjiect:* Cournt for Sr-90 As a follow-up to my message this morning, please analyze 173150010 (952-/0005-010F) under MSR 06-1582 for Sr-90 under the quickest TAT possil Thank you.

jack CIe yI DT uf Y Prolect Manager GEL Laboratories, 2040 Savage Road Charlesron, SC (USA) 2 9 07 DiJr e-ct: 8432-769-'; 37 2 MaIA: 84 3.56 . 8 i xt. 44-33 Fax: 843.7-66.178 eai I 10 of 3 1/9/2007 3:43 PM

FW: Count for Sr-90 The information contained in this message is confidential and is intended only for the use of the individual or firm of record. if you are not the intended recipient and have received this message in error, you are asked not to copy or distribute any of the pages that follow. Please notify the sender immediately by telephone or email if you have received this communication in error and destroy the contents that do not pertain to your business with The GEL Group, iNC. 11 of 3 1/9/2007 3:43 PM

Data Review Qualifier Definitions 12

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 +/-PL. 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 BCD-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 MTIC). 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 Anaslte cncncecnracion is not decected ibove the reporting limit Uc Gamma Spect Uncoy-Untertain identification X Consult Case Narrat-ive, 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. a Member ot THE GEL CROUP, INC. P 0. BOX 30712 Charleston, SC 29417 7 2040 Savage Road (29407) Phone 1'843) c56_-171 - FaL33) 766-1178,wwv.gel.com

KANOLYIGICAL ANALYSIS 14

Radiochemistry Case Narrative Connecticut Yankee Atomic Power Co. (YANK) Work Order 178828 Method/Analysis Information Product: GFPC, Sr90, solid-ALL FSS Analytical Method: EPA 905.0 Modified Prep Method: Dry Soil Prep GL-RAD-A-021 Method: Analytical Batch Number: Prep Batch Number: Dry Soil Prep GL-RAD-A-021 Batch Number: Ash Soil Prep Dry Soil Prep 601327 601271 601270 Sample ID 178828001 1201259068 1201259069 1201259070 1201259071 Client ID 9527-0005-01 OF Method Blank (MB) 178828001(9527-0005-01 OF) Sample Duplicate (DUP) 178828001(9527-0005-0 1 OF) Matrix Spike (MS) Laboratory Control Sample (LCS) SOP Reference Procedure for preparation, analysis and reporting of analytical data are controlled by GEL Laboratories LLC as Standard Operating Procedure (SOP). The data discussed in this narrative has been analyzed in accordance with GL-RAD-A-004 REV# 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. 15

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: 178828001 (9527-0005-01 OF). QC Information All of the QC samples met the required acceptance limits. Technical Information: Holding Time All sample procedures for this sample set were performed within the required holding time. Preparation Information All preparation criteria have been met for these analyses. Sample Re-prep/Re-analysis None of the samples in this sample set required reprep or reanalysis. Chemical Recoveries All chemical recoveries meet the required acceptance limits for this sample set. Miscellaneous Information: NCR Documentation Nonconformance reports are generated to document any procedural anomalies that may deviate from referenced SOP or contractual documents. A nonconformance report (NCR) was not generated for this SDG. Additional Comments Additional comments were not required for this sample set. Qualifier information Manual qualifiers were not required. 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, 16

The following data validator verified the information presented in this case narrative: Reviewer/Date: .rV,4 _**I 17

SAMMLE DATA

SUMMARY

18

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com Certificate of Analysis Report for YANKOOI Connecticut Yankee Atomic Power Co. Client SDG: MSR#06-1582 GEL Work Order: 178828 The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside of specified acceptance criteria Analyte is a surTogate compound U Analyte was analyzed for. but not detected above the MDL. MDA, or LOD. ND The analyte concentration is not detected above the detection limit. The above sample is reported on a dry weight basis except where prohibited by the analytical procedure. Where the analytical method has been performed under NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the Certificate of Analysis. This data report has been prepared and reviewed in accordance with GEL Laboratories LLC standard operating procedures. Please direct any questions to your Project Manager, Cheryl Jones. Reviewed by 19

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

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 1 5, 2007 Client Sample ID: Sample ID: Matrix: Collect Date: Receive Date: Collector: Moisture: Parameter Qualifier Result Uncertainty 9527-0005-01OF 178828001 TS 18-DEC-06 2 1-DEC-06 Client 9.97% Proiect: YANKO 1204 Client ID: YANK001 Vol. Recv.: LC TPU MDA Units DF Analyst Date Time Batch Mtd Rad Gas Flow Proportional Counting GFPC, Sr9O. solid-ALL FSS Strontium-90 U 0.0342 +/-0.0266 0.0208 +/-0.027 0.0437 pCi/g KSDI 01/12/07 1435 601327 I The following Prep Methods were performed Method Description Analyst Date Time Prep Batch Dry Soil Prep Dry Soil Prep GL-RAD-A-021 JMBI 01/10/07 0832 601270 The following Analytical Methods were performed Method Description EPA 905.0 Modified Surrogate/Tracer recovery Trest Strontium-90 GFPC. Sr90. solid-ALL FSS Carrier/Tracer Recovery GFPC. Sr)0. solid-ALL FSS Recovery % 59 59 Acceptable Limits _25%-125%) (25%-7125%) Notes: The Qualifiers in this report are defined as follows : A quality control analyte recovery is outside of specified acceptance criteria Analyte is a surrogate compound Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank BD Results are either below the MDC or tracer recovery is low C Analyte has been confirmed by GC/MS analysis D Results are reported from a diluted aliquot of the sample H Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit 20

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

Contact:

Mr. Jack McCarthy Project: Soils PO# 002332 Report Date: January 15, 2007 Client Sample ID: Sample ID: 9527-0005-OIOF 178828001 Project: Client ID: Vol. Recv.: YANKO 1204 YANK()1 Parameter Qualifier Result Uncertainty TIC TPU MDA Units DF Analyst Date Time Batch Mtd 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. 21

QUALITY CONTROL DATA 22

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Client : Connecticut Yankee Atomic Power 362 Injun Hollow Rd Renort Date: January 15, 2007 Page 1 of 2 East Hampton, Connecticut

Contact:

Mr. Jack McCarthy Workorder: 178828 Parmname Rad Gas Flow Batch NOM Sample Q.a. QC Units RPD% REC% Range AnIst Date Time 601327 QC1201259069 178828001 DUP Strontium-90 QC1201259071 LCS Strontium-90 QC 1201259068 MR Strontium-90 QC1201259070 178828001 MS Strontium-90 U 0.0342 Uncert: +/-0.0266 TPU: +/-0.027 1.53 Uncert: TPU: Uncert: TPU: U 0.0214 +/-0.029 +/-0.029 1.56 +/-0. 139 +/-0.164 U -0.0171 +/-0.0242 +/-0.0242 1.53 +/-0.154 +/-0.178 pCilg 0 (0%- 100%) KSDI pCi/g pCi/g pCi/g 102 (75%-125%) 01/12/07 14:11 01/12/07 13:59 01/12/07 14:35 01/12/07 13:59 1.64 U Uncert: TPU: 0.0342 +/-0.0266 +/-0.027 93 (75%-125%) Notes: The Qualifiers in this report are defined as follows: A quality control analyte recovery is outside of specified acceptance criteria Analyte is a surrogate compound Result is less than value reported Result is greater than value reported A The TIC is a suspected aldol-condensation product B Target analyte was detected in the associated blank RD 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 I4 Analytical holding time was exceeded J Value is estimated N/A Spike recovery limits do not apply. Sample concentration exceeds spike concentration by 4X or more ND Analyte concentration is not detected above the detection limit R Sample results are rejected U Analyte was analyzed for. but not detected above the MDL, MDA. or LOD. UI Gamma Spectroscopy--Uncertain identification X Consult Case Narrative. Data Summary package. or Project Manager concerning this qualifier Y QC Samples were not spiked with this compound A RPD of sample and duplicate evaluated using +/-RL. Concentrations are <5X the RL h Preparation or preservation holding time was exceeded 23

GEL LABORATORIES LLC 2040 Savage Road Charleston SC 29407 - (843) 556-8171 - www.gel.com QC Summary Workorder: 178828 Page 2 of 2 Parmnae. .NOM Samp!e_.Qua! W_ Units RPD % REC% Range Anlst Date Time N/A indicates that spike recovery limits do not apply when sample concentration exceeds spike conc. by a factor of 4 or more. "* Indicates analyte is a surrogate compound. " 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 Linder NELAP certification, the analysis has met all of the requirements of the NELAC standard unless qualified on the QC Summary. 24

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD ATTACHMENT 4 (DQA RESULTS)

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD ATTACHMENT 4A (PRELIMINARY DATA REVIEW)

PRELIMINARY DATA REVIEW FORM WP&IRNo.: 2006-0038 Survey Unit: 9527-0006 Survey Unit Name East Mountainside Classification I Survey Media Soil T-ype Of Sur-vey Final Status Survey Type of Measurement Radion1uclide Specific Number of Measurements 14 BASIC STATISTICAL QUANTITIES CD 4 Target Level (pCi/g) Minimum Value Maximum Value Mean Median Standard Deviation Cs-137 5.3 8E+00 2.71E-01 4.42E+00 1.83E+00 1.27E+00 1.40E+00 Co-60 2.59E+00 0.00E+00 1.52E-01 5.51 E-02 3.68E-02 5.89E-02 Sr-90 1.05E+00 3.67E-03 9.03E-02 4.70E-02 4.70E-02 1.70E-02 Sample IdentiFication 9527-0006-001 F 9527-0006-0021F 9527-0006-003 F 9527-0006-004F 9527-0006-005F 9527-0006-006F 9527-0006-007F Cs-137 Concentrati on (pCi/g) 1.22E+00 8.67E-0 1 2.71E-01 2.7 1E+00 1.54E+00 9.01E-01 6.50E-01 Detected Reported Results Co-60 Concentration (pCi/g) 7.30E-02 4.25 E-02 3.1 IE-02 1.28E-01 2.66E-02 0.00E+00 O.OOE+00 Detected Sr-90 Concentration (pCi/g) 4.70E-02 9.03 E-02 4.70E-02 4.70E-02 4.70E-02 4.70E-02 4.70E-02 Fraction of Detected Target Level 0.300 0.264 0.107 0.598 0.34 I 0.212 0.166 Submitted by/Date ///(ý /7 1 of 2

PRELIMINARY DATA REVIEW FORM Sample Identification 9527-0006-008F 9527-0006-009F 9527-0006-01 OF 9527-0006-0 1I F 9527-0006-012F 9527-0006-013 F 9527-0006-0144F Cs-137 Concentration (pCi/g) 9.03E-01 1.69E+00 ).93 E+00 1.0 1E+00 1.31 E+00 4.42E+00 4.21 E+00 Detected Reported Results Co-60 Concentration (pCi/g) O.OOE+00 0.00E+00 1.41E-0I 0.OOE+00 4.58E-02 1.52E-01 1.32E-01 Detected Sr-90 Concentration (pCi/g) 4.70E-02 4.70E-02 4.7013-02 3.67E-03 4.70E-02 4.70E-02 4.70E-02 Fraction of Detected Target Level 0.213 0.359 0.830 0.191 0.306 0.925 0.878 Submitted by/Dat4 2 of 2

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD ATTACHMENT 4B (GRAPHICAL REPRESENTATION OF DATA)

FREQUENCY PLOT FOR CESIUM-137 Survey Unit: 9527-0006 Survey Unit Name: East Mountainside Mean: 1.83E+00 pCi/g Frequency Plot For Cs-137 10 K C 4) U-6 4 2 0 2.71 E-01 1.38E+00 2.48E+00 3.59E+00 4.69E+00 Upper End Value (pCi/g) Upper End Observation Observation Value Frequency Frequency 2.71E-01 1 7% 1.38E+00 7 50% 2.48E+00 2 14% 3.59E+00 1 7% 4.69E+00 3 21% Total: 14 100% Submitted byDate ReviewepfDate 1 of 1

QUANTILE PLOT FOR CESIUM-137 Survey Unit: 9527-0006 Survey Unit Name: East Mountainside Mean: 1.83E+00 pCi/g Quantile Plot For Cs-137 5.00E+00 4.50E+00 4.00E+e00 3.50E+00 - a. CL*.3.00E+00 0 2.50E+00 - 2.00E+00 -, 0 1.50E+00 mm 1.00E+-0 ] 5.00E-01 0.00E+00 0 20 40 60 80 100 Percentage Cs-137 Rank Percentage 2.71E-01 1 4% 6.50E-01 2 11% 8.67E-01 3 18% 9.01E-01 4 25% 9.03E-01 5 32% 1.01E+00 6 39% 1.22E+00 7 46% 1.31E+00 8 54% 1.54E+00 9 61% 1.69E+00 10 68% 2.71E+00 11 75% 3.93E+00 12 82% 4.21E+00 13 89% 4.42E+00 14 96% Submitted by/Da~e Review7 y/Date

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD ATTACHMENT 4C (SIGN TEST)

Connecticut Yankee Decommissioning Projeci H-tealth Physics Procedure GPP-GGGR-R5121 -001 Attachment B, Rev. CY-001 MAJOR Sign Test Calculation Sheet For Multiple Radionuclides Survey Area Number: 9527 Survey Unit Number: 0006 WPIR#: 2006-0038 Survey Area Name: East Mountainside Classification: I TYPE I W( error): 0.05 N: 14 Radionuclides: Cs-137 Co-60 Sr-90 DCGL: 5.38E+00 2.59E+00 1.05E+00 Results I" Results 2" I Results 3 `1 Results 4!' Results 5"i Weighted Sum I - WS Sign Radionuclide Radionuclide Radionuclide Radionuclide Radionuclide (WI) (pCi/g) (pCi/g) (pCi/g) (pCi/g) (pCi/g) 1.22E+00 7.30E-02 4.70E-02 0.300 0.700 + 8.67E-01 4.25E-02 9.03E-02 0.264 0.736 + 17 1E-01 3.11 E-02 4.70E-02 0.107 0.893 + 2.71E+00 1.28E-01 4.70E-02 0.598 0.402 + 1.54E+00 2.66E-02 4.70E-02 0.341 0.659 + 9.01 E-0 I O.OOE+00 4.70E-02 0.212 0.788 + 6.50E-01 0.OOE+00 4.70E-02 0.166 0.834 + 9.03E-0I 0.OOE+00 4.70E-02 0.213 0.787 + 1.69E+00 0.OOE+00 4.70E-02 0.359 0.641 + 3.93E+00 1.4lE-0I 4.70E-01 0.830 0.170 + 1.01 E+00 0.OOE+00 3.67E-03 0.191 0.809 + .3 31E+00 4.58E-02 4.70E-02 0.306 0.694 + 4.42E+00 1.52E-01 4.70E-02 0.925 0.075 + 4.21E+00 1.32E-01 4.70E-02 0.878 0.122 + Number of positive differences (S+): 14 (Critical Val Performed by: f.2 -.,C 4 Independent Review by: ue: 10 Survey Unit Meets Acceptance Criterion Date: e//-/,'> Date: X? /7 Page I of I

EAST MOUNTAINSIDE AREA SURVEY UNIT 9527-0006 RELEASE RECORD ATTACHMENT 4D (QC SPLIT RESULTS)

Health Physics Procedure 24265-000-GPP-GGGR-R5]24-000-Rev.CY-000 Attachment A Health Physics.II Procedure IIllI. 2I P-GG -S2-0-e.CY1 000Attacment. Split Sample Assessment Form Survey Area#: 9527 Survey Unit #: 0006 Survey Unit name: East Mountainside Sample Plan or WPIR#: 2005-0038 SML#: 9527-0006-001 Sample

Description:

Comparison of split samples collected from sample measurement location #1 and analyzed using gamma spectroscopy by off-site Vendor Laboratory. The standard sample was 9527-0006-001 F, the comparison sample was 9527-0006-001 FS. STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (Y/N) Cs-137 1.22 5.55E-2 22 0,75 - 1.33 1.22 5.08E-1 1.00 Y Comments/Corrective Actions: N/A Table is provided to show acceptance criteria used to assess split samples. Resolution Agreement Range 4-7 0,5-2.0 8-15 06-1.66 16 -50 0,75-133 51 -200 0H0- 125 >200 085-1,18 Performed By: Date Review* _ Date: / / ,J--' ~

2, 07 Page I of 1

Health Physics Procedure 24265-000-GPP-GGGR-RS 124-000-Rev.CY-000 Attachment A Healt P sicI Procedlel2425....GPP .GG.- I I 24-Il-ReI.Y-00 Atahmn i Split Sample Assessment Form Survey Area#: 9527 Survey Unit #: 0006 Survey Unit name: East Mountainside Sample Plan or WPIR#: 2005-0038 SML#: 9527-0006-Oil Sample

Description:

Comparison of split samples collected from sample measurement location # 11 and analyzed using gamma spectroscopy by off-site Vendor Laboratory. The standard sample was 9527-0006-01 IF, the comparison sample was 9527-0006-01 iFS. STANDARD COMPARISON Radionuclide Activity Standard Resolution Agreement Activity Standard Comparison Acceptable Value Error Range Value Error Ratio (Y/N) Cs-137 1.01 4.19E-2 24 0.75 - 1.33 0.94 4.37E-2 .0.93 Y Comments/Corrective Actions: N/A Table is provided to show acceptance criteria used to assess split samples. Resolution Agreement Range 4-7 0.5 -2,0 8-15 0,6-! 166 16 -50 075 -133 51 -200 0.80 -125 >200 0.85 -4118 Performed By: 7 f Date Reviewed B Date: 1 I ,'/, 7" / Page I of I}}