Text

Alan J. Blotcky Reactor Facility Omaha Veterans Administration Medical Center Characterization Survey Report, February 2003, Revision 0
	ML061140054
Person / Time
Site:	05000131
Issue date:	04/06/2006
From:	Mcvicker D; US Dept of Veterans Affairs, Omaha, NE
To:	Alexander Adams; NRC/FSME
References
	Download: ML061140054 (240)
	v • d • e

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Dan McVicker v VA Medical Center v 4101 Woolworth Ave

OmahaNE 68105 April 6,2006

r-/3 1 Al Adams US NRC Mail Stop 0-12-G-13 Washington DC 20555

Dear Mr. Adams,

Here is the copy of the Characterization Report you requested. The last section is Appendix A. If you need firther information please contact me at telephone # 402-346-8800 ext. 3270 Sincerely, Daniel McVicker pa jyC7/$j<

--- P400Qo

Alan J. Blotcky Reactor Facility Omaha Veterans Administration Medical Center Omaha, Nebraska Characterization Survey Report February 2003 Revision 0

DURATEK, INC.

CHARACTERIZATION SURVEY REPORT for the ALAN J. BLOTCKY REACTOR FACILITY OMAHA VETERANS AFFAIRS MEDICAL CENTER OMAHA, NEBRASKA NRC FACILITY OPERATING LICENSE NUMBER R-57 Revision 0 February 2003 Prepared by:

Elizabeth Langle, CB?, Commercial Operations / bate Reviewed by:

aul Je ,roject Manager, Commercial Operations Date Reviewed by Du ulCPCommercial 1Aerations 'Date~

Approved by:

Robin Shult, Project Director, Commercial erations Date Radiological Field Services Commercial Operations 628 Gallaher Road Kingston, TN 37763

TABLE OF CONTENTS 1.0 EXECUTIVE

SUMMARY

..................................... 8 2.0 SITE INFORMATION .................................... . 14 2.1 Site Description .......................................... 14 2.2 AJB Reactor General Description and Operational History ................................ 14 2.3 AJB Reactor Facility Sturctures, Components, and Systems .............................. 16 2.4 Identity of Contaminants .......................................... 23 2.5 Historical Site Assessment .......................................... 27 3.0 ORGANIZATION AND RESPONSIBILITIES ........................... 28 3.1 Project Manager (On-site) .......................... 28 3.2 Health Physics (HP) Technician(s) .......................... 28 3.3 Duratek Data Management Technician ........................... 28 3.4 Certified Health Physicists ........................... 28 3.5 Subcontractors ........................... 28 4.0 CHARACTERIZATION TASKS ........................ 29 5.0 SURVEY OVERVIEW.................................................................................................30 5.1 Data Quality Objectives ......................................... 30 5.2 Structure Surveys ......................................... 32 5.3 Land Area Surveys ......................................... 32 5.4 Background Study ......................................... 32 5.5 Characterization Survey Classification Approach ......................................... 33 5.6 Inpacted Area Survey and Sample Plan Methodology ........................................ 33 5.7 Non-Impacted Area Survey and Sample Plan Methodology ............................... 34 5.8 Neutron Activation Analysis of the Core Area ......................................... 35 5.9 Deep Soil Borings ......................................... 35 5.10 Hazardous Materials Assessment ......................................... 35 5.11 Surface and Subsurface Soil Samples ......................................... 36 5.12 Number of Samples/Measurements ......................................... 36 6.0 SURVEY DESIGN AND IMPLEMENTATION .................................... 37 6.1 Instrumentation and Selection .. .............................. 37 6.1.1 Instrument Calibration ................................ 39 6.1.2 Sources ................................ 40 6.2 Survey Unit Classification ................................ 40 6.3 Survey Package Development .. .............................. 41 6.4 Survey Protocols/Requirements .. .............................. 42 6.4.1 Surface Gamma Scans and Beta Scans ................................ 42 6.4.2 Direct Alpha and Beta Measurements ................................ 42 6.4.3 Removable Activity Measurements ................................ 42 6.4.4 Grid Spacing ................................ 43 6.5 Survey Records ................................. 43 Revision 0 2 of 69

7.0 MINIMUM DETECTABLE ACTIVITY, MDA ................................... 44 8.0 CHARACTERIZATION SURVEY RESULTS ................................... 45 8.1 Environmental Background Results (Package NOOO 1) .47 8.2 Outside Areas (Package N0002) .48 8.3 Rooms SW2A and SW2B (Package AOOO1) .49 8.4 Reactor Room Console Area, Including Reactor pool (Package A0002). 50 8.5 Rooms SW2C and SW2D (Package A0003) .52 8.6 Rooms SW2E and SW2F (Package A0004) .54 8.7 Reactor Room Access Areas (Package BOOO) .57 8.8 Reactor Controlled Area Overhead Areas and Ceilings (Package COOOI) . 58 8.9 Ventilation and Drain Systems (Package D0001) .59 8.10 Calculation of Derived Concentration Guideline Levels .61 8.11 Activation Analysis Calculations .62 8.12 Soil Borings and Installation of Test Wells .62 8.13 Asbestos and Lead Sampling .65 9.0 DATA QUALITY ASSESSMENT, QUALITY ASSURANCE AND QUALITY CONTROL .66 9.1 Selection of Personnel ..................................... 66 9.2 Training ..................................... 66 9.3 Written Procedures ..................................... 66 9.4 Instrumentation Selection, Calibration and Operation ..................................... 66 9.5 Survey Documentation ..................................... 67 9.6 Chain of Custody ..................................... 67 9.7 Records Management ..................................... 67 9.8 Duplicate Review of Survey Results ..................................... 67 10.0

SUMMARY

AND CONCLUSIONS . .68 11.0 REFERIENCES...............................................................................................................69 Revision 0 3 of 69

LIST OF ATTACHMENTS : Eberline Services Final Report of Analysis Summary and Case : Calculation of Derived Concentration Guideline Values (DCGLs) : Characterization Plans and Procedures : Summary of Alpha Beta Smear Sample Analysis : Summary of Tritium Smear Sample Analysis : Summary of Total Surface Contamination Beta Measurements : Summary of Total Surface Contamination Alpha Measurements : Summary of Gamma Exposure Rate Measurements : Gamma Spectral Analysis Sample Results Summary 0: Asbestos and Lead Results Summary : Materials Disposition Report LIST OF APPENDICES APPENDIX A: Document Review for Historical Site Assessment APPENDIX B: Characterization Survey Data Packages APPENDIX C: Activation Analysis Report APPENDIX D: Soil Boring Log and Notes and Associated Gamma Spectral Analysis Results APPENDIX E: Characterization QAIQC Data APPENDIX F: Eberline Services Analysis Report Package Revision 0 4 of 69

LIST OF TABLES Table 1.1 Summary of Areas with Measurable Activity Table 2.1 Potential Radionuclides of Concern at the AJB Reactor Facility Table 2.2 Resin Sample Analysis Results Summary Sample Number VA-02-0176 Collected 1l/26102Analyzed by Eberline Services Table 6.1 Survey Instrumentation Table 6.2 Measurement Sensitivity: MDL, MDC, MDA Table 6.3 Survey Units Table 8.1 Environmental Background Results (Package NOOOI)

Table 8.2 Outside Area Results (Package N0002)

Table 8.3 Rooms SW2A and SW2B Results (Package AOOOI)

Table 8.4 Room SW2: Reactor Room Console Area, Reactor Pool, Primary Cooling System Pit, Structures and Trenches Results (Package A0002)

Table 8.5 Rooms SW2C and SW2D (Package A0003)

Table 8.6 Rooms SW2E and SW2F Results (Package A0004)

Table 8.7 Reactor Room Access Areas Results (Package BOOOI)

Table 8.8 Reactor Controlled Area Overhead Areas and Ceilings (Package C0001)

Table 8.9 Ventilation and Drain Systems (Package DOOOI)

Table 8.10 A.J. Blotcky Screening Values and Gross Activity DCGL for Building Surfaces LIST OF FIGURES Figure 2.1 Alan J. Blotcky Reactor Facility Location VA Medical Center Figure 2.2 AJB Reactor Facility Basement Areas Figure 2.3 Veterans Affairs Medical Center Roof Exhaust Locations Figure 2.4 Reactor and Pit Figure 8.1 Survey Areas Revision 0 5 of 69

LIST OF ABBREVIATIONS

%R Percent recovery ACM Asbestos containing material AJB Alan J. Blotcky AJB RF Alan J. Blotcky Reactor Facility ASTM American Society for Testing and Materials CAR Corrective action report c/d Counts Per Disintegration CEO Chief Executive Officer CFR Code of Federal Regulations Co Cobalt CoC Chain of custody Cs Cesium DCGL Derived Concentration Guidelines DOT Department of Transportation dpm Disintegrations Per Minute DQCR Daily quality control report DQO Data quality objective EPA U.S. Environmental Protection Agency FR Federal Register FWHM Full width at half maximum g Gram GM Geiger-Muller HASP Health and Safety Plan HSA Historical Site Assessment HTRW Hazardous, Toxic, and Radioactive Waste IAW In accordance with ID Inner Diameter IDW Investigation derived waste L Liter LCS Laboratory Control Standard M&TE Measuring and test equipment MDA Minimum detectable activity MDCR Minimum detectable count rate MDL Method detection limit mg Milligram MS Matrix spike MSD Matrix spike duplicate NA Not applicable NCR Nonconformance report NIST National Institute of Standards and Technology NOV Notice of Violation OD Outer Diameter PTS Pneumatic Transfer Tube System Revision 0 6 of 69

QA Quality assurance QAPP Quality assurance project plan QC Quality control RAI Request for additional Information RPD Relative percent difference Rx Reactor SAR Safety Analysis Report SER Safety Evaluation Report Ss Stainless Steel TCLP Toxicity Characteristic Leaching Procedure TOCs Tops of monitoring well casings.

TRIGA Training, Research, Isotopes, General Atomics TS Technical Specifications Tx Treatment USAEA United States Atomic Energy Act USAEC United States Atomic Energy Commission USDOE United States Department of Energy USGS United States Geological Survey USNRC United States Nuclear Regulatory Commission Revision 0 7 of 69

1.0 EXECUTIVE

SUMMARY

Operation of the Alan J. Blotcky reactor facility was permanently shut down in November 2001 following a decision to cease operations and decommission the reactor. The ftiel was shipped to a similar reactor in Colorado in June 2002. Duratek was contracted to perform a characterization of the facility and surrounding environs so that the Department of Veterans Affairs (DVA) could develop a detailed decommissioning plan.

The characterization included performing a Historical Site Assessment (HSA), preparing plans, performing a comprehensive radiation survey, performing activation analysis calculations of surrounding materials, and sampling for lead and asbestos. The HSA involved a site walk-down, interviews with current and former employees, and a review of facility records. Information obtained during the HSA was included in the characterization plan, the survey packages, and this report. APPENDIX A to this report lists the historical documents reviewed and notes regarding the document content that could be important to the radiological status of the facility.

In addition to the Characterization Survey Plan, a Site Safety and Health Plan, Quality Assurance Project Plan, and Project Management Plan were written and approved to control the characterization efforts. The plans were developed by Duratek staff at the Commercial Services office in Kingston, Tennessee, and reviewed and approved for use at the project site. The characterization of the facility was performed according to these plans and the procedures referenced in the plans. Data quality objectives (DQOs) stated in the plans were achieved in the characterization survey.

Once the planning phase was completed, the Duratek survey team mobilized to the site.

Training was completed on the project plans for the Duratek personnel, and the equipment was set up to begin surveys. Instrumentation included an on-site gamma spectroscopy system; data loggers capable of interfacing with numerous probes including thin window Geiger-Muller (GM) detectors, gas flow proportional detectors, and Nal (Tl) exposure rate detectors; and an Eberline RO-7 with a high range detector for pool components. Nine survey packages describing rooms and areas of the reactor facility and site surfaces, structures, and environs were developed. Each survey package contained detailed instructions, drawings, and location codes to collect the 3,100 measurements and samples that were analyzed for the characterization.

The measurements and samples collected for the radiological characterization survey consisted of direct beta measurements; direct alpha measurements; smear samples for alpha and beta contamination; smear samples for removable tritium; exposure rate measurements; and soil, sediment, and water samples analyzed by gamma spectroscopy.

Soil borings were made by HDR Engineering to evaluate the groundwater flow and direction and to analyze the soil adjacent to the reactor core for gamma emitting radionuclides. Three test wells were installed to depths between 100 and 131 feet. Four additional borings (without installation of wells) were made to a depth of 36 feet (approximately 10 feet below the bottom of the reactor). Eighty-eight soil samples for various depths from all seven borings were analyzed by gamma spectroscopy. None of Revision 0 8 of69

the samples showed activity other than naturally occurring radionuclides present at concentrations typical for US soils'.

In addition to the soil borings, 30 surface soil and 30 subsurface soil samples were obtained during the characterization. None of the samples showed activity other than naturally occurring radionuclides.

A sample of resin was obtained from the reactor coolant demineralizer and sent to Eberline Services Laboratory in Oak Ridge, Tennessee, for analysis of 10 CFR part 61 radionuclides and other radionuclides typical of reactor activation and fission products.

The sample analysis identified the radionuclide mixture that could be used to establish derived concentration guideline levels (DCGLs) for the site decommissioning. DCGLs were developed to meet the intent of Subpart E, 10 CFR 20.1402, RadiologicalCriteria for UnrestrictedUse. The DCGL for gross activity measurements equivalent to the 25 mrem annual total effective dose equivalent was calculated to be 27,000 dpmIlOO cm 2 for building surfaces and structures.

The building surfaces (walls, floors, and overheads) are characterized to be relatively free of licensed materials and none of the measurements exceeded the calculated DCGL of 27,000 dpml1OOcm 2 . Table 1. I provides a summary of the areas and identifies measurements that exceeded 1000 dpm/100 cm 2 total beta contamination or 40 dpm/I00 cm2 of removable beta contamination. 1000 dpmIlOO cm 2 was the highest minimum detectable activity (MDA) for fixed beta measurements. The required MDA for removable beta measurements was 100 dpm/I00 cm 2 , but actual measurement MDAs were less than 35 dpm/100 cm 2 . All measurements of total alpha contamination were less than the 100 dpm/I00 cm2 required MDA. The highest total alpha measurement was 79 dpm/100 cm 2 . Activity of the drains and vents was evaluated, and the highest measurements are identified in Table 1.1. Bolded values are values that exceed the calculated DCGL of 27,000 dpm/lOO cm 2 for fixed measurements or 2,700 dpm/100 cm 2 for removable measurements (10% of the DCGL). The only survey areas that exceeded the calculated DCGL were: (1) the south lab hood in room SW2D and (2) Drain 3 in the south lab hood of room SW2D. Table 1.1 does not include the activity measurements of the reactor pool components. Reactor pool components and the concrete and stainless steel reactor pit are assumed to be above guideline values and will need to be disposed of as radioactive waste. The reactor pool components are discussed in Attachment 11 to this report, MaterialsDisposition Report.

I Reference values for US soils are noted in NUREG-1501, Background as a Residual Radioactivity Criterionfor Decommissioning. Draft Report, August 1994. Table 2.2 of NUREG 1501 lists the average concentration of background radionuclides in US soils as 1.0 pCi/g for uranium series radionuclides (range of 0.1 to 3.81 pCi/g) and an average of 1.0 pCi/g for thoriurn series radionuclides (range of 0.1 to 3.41 pCi/g).

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Fifteen field screen chemical tests and three scraping samples were taken to evaluate for the presence of lead in paint. Eight samples were taken to evaluate the presence of asbestos. Asbestos samples showed asbestos in the lab counters, fume hood panels, floor tiles, pipe insulation, and in the floor tile mastic adhesive. Paint samples from the three paint locations (beige paint from dumbwaiter frame, beige paint from the south stairwell door frame, and beige paint from the south east corner column) all showed measurable lead (from 0.066 to 1.068 % lead by weight). Two of these samples exceeded the limit of 0.5% lead by weight established in the Lead-Based PaintPoisoningPreventionAct of 1971, as amended by the Housingand Community Development Act of 1987. Both of the positive lead samples were taken on painted metal and typical of older metal primers.

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Table 1.1 Summary of Areas with Measurable Activi _

Direct Alpha Survey Package Direct Beta Activity Activity Removable Activity H-3 (Area) (0/y dpm/100 cm 2 ) (a dpm/100 cm2) (dpm/100 cm) (dpm/100 cm2 ) Notes A0001 (Rooms 2A None None None None None

& 2B)_

A0002

Pool Cover 5,166 None

Floor 190.36 3 None None

Pool Cover 12,116 a Trench 1 69.3

Pool Cover 3,150

Trench 2 1,136

Trench 2 1,243

East Cooling Pit Floor 1,734 A0003 - Area 1 None None None None Walk-In Cooler (Room SW2D) 22iRfhr Lazy-Susan 2mremn/hr A0003 - Area 2

Wall 2 1,076 None South Lab Hood 1,081 ' None None (Room SW2C)

^ Wall 4 1,189

Wall 4 2,227

South Lab Hood 72,211

__ f Reiso 0_

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Direct Alpha Survey Package Direct Beta Activity Activity Removable Activity H-3 (Area) (3/) dpm/100 cm 2) (a dpm/100 cm 2) (dpm/100 cm 2 ) (dpm/100 cm 2) Notes A0004 - Area 1

Penetration 42 8,748 None

Penetration 42 162.0 1 Floor 792 600 gzR/hr - I mremnbr (Room SW2F) Exposure rate

Floor Grid A2 1,301

Floor 43.94 1 measurements were obtained prior to source

Floor Grid C2 1,337

Floor 255.22 J removal.

Floor Grid C2 15,682

Floor 48.17 f

. Floor 111.5513

Floor 149.58f_

A0004 - Area 2 None None None None None (Room SW2E)

B0001 -Area 1

Wall 1 1,143 None None None None (North Access Area)

Wall2 1,312

Wall 3 1,068 B0001 - Area 2 Wall 1, 1462 maximum Wall I A2 79 None None None (Mens Bathroom) Note: 20 of 32 measurements exceeded 1,000 dpm/l 00cm 2

B0001 - Area 3 None None

Wall 1 37.61 13 None None (South Stairwell)

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Direct Alpha Survey Package Direct Beta Activity Activity Removable Activity H-3 (Area) (P/y dpm/100 cm) (a dpm/100 CM) (dpm/100 cm ) dpm/100 cm) Notes COOO1 - Area 1 None None None None None (Overhead) . _

DOQOR

Drain 3 1,554,491 N/A

Drain 1 67.6 1 None Drains 8 & 9 (Drains)

Drain 4 9,070 . Drain 3 384.5 1 inaccessible

Drain 5 2,018 _ __-

DOCOO None None None None None (Vents 1 and 2)

DOOO1 N/A N/A

Penetration 1 42.25 13 None None (Pneumatic

Penetration 2 152.1213 Transfer System) . Penetration3 228.1713

Penetration 4 80.28 _

N0002

Asphalt (FE1 #9) 1,187 N/A N/A None None (Building exterior

Sidewalk (FE 1#20) open land areas) 1,396

Roof 608 - 1707 Revision 0 13 of 69

2.0 SITE INFORMATION The Alan J. Blotcky (AJB) reactor facility located within the Veterans Affairs Medical Center in the city of Omaha, Douglas County, Nebraska maintains United States Nuclear Regulatory Commission (U.S. NRC) Facility Operating License R-57. The reactor is housed in the basement of the southwest wing of the medical center building.

This report describes the survey protocols used to characterize the AJB reactor facility.

The characterization of the facility included rooms, ventilation systems, drainage systems, cooling systems, storage areas, the reactor structures, and outside areas. Figure 2.1 shows the location of the reactor within the VA Medical Center.

The purpose of the characterization survey was to collect sufficient survey data to allow the Department of Veterans Affairs (DVA) to develop a detailed decommissioning plan.

The characterization was completed by implementing plans and procedures developed for the project.

2.1 Site Description The AJB reactor facility is located in the basement of the southwest wing of the medical center. The 11- story medical center research addition (Figure 2. 1) was erected in 1951. The medical center is built on the high point of a knoll. To the north is a county hospital, to the south a commercial district, to the west a residential area, and to the east a golf course. Omaha is situated on the west bank of the Missouri river; the river level at Omaha is normally about 965 ft above sea level. The rolling hills in and around Omaha rise to approximately 1300 ft above sea level.

2.2 AJB Reactor General Description and Operational History Reactor Type The reactor is a Training, Research, Isotopes, General Atomics (TRIGA) MARK I reactor, owned by the U.S. Department of Veterans Affairs. Operated by the Omaha Veterans Affairs Medical Center, the reactor is licensed pursuant to 10 CFR Part 50 (Domestic Licensing of Production and Utilization Facilities) under Facility License R-57. The reactor is a pool-type facility that was previously fueled with standard TRIGA fuel elements enriched to less than 20% uranium-235 zirconium hydride. Fuel elements were removed in June 2002 and shipped to the United States Geological Survey (USGS) TRIGA reactor in Denver, Colorado.

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The below ground AJB TRIGA reactor contains a graphite-reflected fixed core resting on the bottom of a 20 foot steel, concrete, gunite, and epoxy coated tank.

The surrounding earth and demineralized water within the tank provided the required shielding so that no special containment building was necessary.

Figure 2.1 Alan J. Blotcky Reactor Facility Location VA Medical Center

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Reactor History Reactor construction began on January 8, 1959, when the core centerline 30-foot test auger boring was taken in the basement of the facility. Construction of the AJB reactor facility was completed on June 24, 1959, in conformity with:

construction permit No. CPRR-36 the provisions of the Atomic Energy Act of 1954 and the regulations of the Atomic Energy Commission. The reactor was safely operated at 18 kW between June 1959 and April 12, 1991, and at 20 kW from April 12, 1991, to November 5, 2001. Total operational hours at the facility were usually between 1000 and 2000 hours0.0231 days 0.556 hours 0.00331 weeks 7.61e-4 months annually. During the last 3 years of operation, the reactor operation was approximately 1000 kW-hrs. The lifetime total from 1959 through 2002 is approximately 515,000 kW-hrs.

The AJB reactor was used to support nuclear medicine and research programs conducted at the medical center. Between 1959 and 1965 the reactor was funded as a national laboratory and employed approximately 30 people. The principle use of the reactor was for neutron activation of biological samples. Typical irradiation times were 3 minutes. Samples were irradiated in 5 ml vials. The vials were opened in the fume hood to allow the argon-41 (Ar-l) to vent to the atmosphere.

2.3 AJB Reactor Facility Structures, Components, and Systems The medical center building is constructed of brick and reinforced concrete, including the floors and ceiling, except that the walls between the rooms in the reactor area are of wood and plaster construction. Entrance to the reactor laboratory is normally through the door marked SW 2 (Figure 2.2). The area to the left of the access door serves as a health physics control point. Samples to be irradiated were typically prepared in either room SW 2C or SW 2E. Isotopes were stored in the isotope storage area SW 2F. The pneumatic transfer system is shown in Figure 2.2. Gamma counting of irradiated samples was performed in the area marked shield. Looking at various drawings, the room use sometimes changed; a list of the various room use noted on the drawings is provided.

Room or Area Number Use SW I Lockers SW IA Restroom and Shower SW 2 Radioisotope Reactor Research Lab SW 2A Office Electron Microscope SW 2B Office Dark Room Clothing Change Room Intermediate Monitoring Room SW 2C Nuclear Research Lab Office and Lab Revision 0 16 of 69

SW 2D Walk-in Cooler and area surrounding cooler accessed from outside SW 2E Nuclear Research Lab Office and Lab SW 2F Isotope Storage General Storage Figure 2.2 AJB Reactor Facility Basement Areas Medical Center Basement N

I,<f J ISW 2F fun Arrows indicate evacuation route Dashed line indicates operation boundary To first floor-research Double dashed line from the reactor to the console Indicates cable conduit Revision 0 17 of 69

The reactor room ventilation supply provides heated or cooled 100% outside air to the reactor laboratory at the rate of 1,520 CFM through six ceiling ducts. The exhaust effluent of 2,970 CFM exits the reactor room into the outside air by means of an exhaust fan installed in the outside wall of the building. In addition, two laboratory fume hoods (Figure 2.2) are operated continuously and exhaust a total of 919 CFM by means of fans installed on the roof of the medical center (Figure 2.3). Since the blower for the hood exhaust is on the roof, resulting in the entire duct having a negative pressure, any leakage would be into the duct, eliminating the potential for exposure within the medical center. The ventilation exhaust point of interest is the area labeled Reactor Lab Hoods (Figure 2.3).

Figure 2.3 Veterans Affairs Medical Center Roof Exhaust Locations OPC Clinic rXenon Exhiaust Elev. 405'- O' L'XMain HosMit Reactor Lab Hoods uclear edicine Eev. 371'- OI Suite I Exhaust Elev. 37V-O Revision 0 18 of 69

Reactor Pit The reactor is located near the bottom of a cylindrical pit 6.1 meters below ground level. The pit contains a steel tank of 208 cm (inside diameter) with a wall thickness of 0.64 cm. The tank rests on a 28 cm concrete slab, and approximately 25 cm of poured concrete surround the outside of the tank. The inside of the steel tank is covered on the sides by a layer of gunite approximately 5 cm thick and on the bottom by poured concrete approximately 10 cm thick. The entire inner surface is coated with two applications of a waterproof epoxy resin. The reactor pit has been designed to ensure against leakage of the water. The gunite and its waterproof coating protect the steel tank against corrosion by water, and if a small defect in the coating should occur, the steel tank will provide a secondary containment vessel. 4.9 meters of water provides shielding above the reactor core.

Figure 2.4 provides a schematic of the reactor and pit.

Three emergency storage pits are located immediately adjacent to the reactor tank.

These pits are vertical steel pipes 25 cm in diameter and 305 cm long. The pits were never used but could have been filled with water to store irradiated specimens or failed fuel elements.

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Figure 2.4 Reactor and Pit Revision 0 20 of 69

Reactor Core and Graphite Reflector The core is at the bottom of the reactor pit and is approximately 0.36 meters long.

The core contained 85 fuel-element positions; 57 contained active fuel elements, and graphite elements (elements in which the uranium-zirconium-hydride fuel is replaced by graphite) occupied the remainder of the positions. The assemblies were supported above by the top grid plate and below by the bottom grid plate.

Both grid plates were 1.9 cm of aluminum. The final core consisted of 56 aluminum clad fuel elements and one stainless steel clad element that was added to the core on October 2, 1995.

The core was cooled by natural circulation of water flowing through the core from bottom to top.

A cylindrical reflector 30.5 cm thick (inner diameter of 43 cm and outer diameter of 107 cm) surrounded the core. The graphite reflector is completely encased in a welded aluminum can. Reflectors on the top and bottom of the core are 10 cm graphite sections encased in fuel element cans. General Atomic reports that impurities in the graphite may include iron (Fe), silicon (Si), titanium (Ti),

zirconium (Zr), and calcium (Ca).

Irradiation Facilities Irradiation facilities are part of the reactor structure and provided for the production of radioisotopes. These include a rotary specimen rack located in the well in the reflector can, a pneumatic transfer tube, and a central thimble. In addition, odd-shaped specimens could be irradiated in the water outside the reflector.

The rotary specimen rack (also referred to as the "Lazy Susan") is an aluminum ring that could be rotated around the core. Forty evenly spaced aluminum cups are hung from the ring and served as irradiation specimen holders. The ring could be manually rotated from the top of the reactor pit so that any cup could be aligned with the single isotope-removal tube that runs to the top of the reactor.

Additional detail about the rotary specimen rack can be found in the Safety Analysis Report (SAR).

The pneumatic transfer system (PTS) provided for the production of isotopes with short half-lives. It consists of two tubes leading down through the water tank to a position at the outer edge of the core where the tubes are joined. The specimen was fed in and out through one of the tubes and a blower connected to the other tube provided the pressure difference to inject or eject the specimen. Specimens were inserted and removed from the PTS in the reactor laboratory.

Revision 0 21 of 69

The central thimble was installed to provide irradiations or experiments in the region of maximum neutron flux. The thimble consists of a vertical aluminum tube with a 3.4 cm inner diameter leading from the top of the reactor pit through the center of the core and ending at the bottom of the core. The vertical aluminum tube has holes in the region of the core to ensure water flow through the core during reactor operation. The shield water could be removed from the portion of the central thimble above the upper grid plate using air pressure to force the water out of the tube through the holes in the bottom. This provided a highly collimated beam of neutron and gamma radiation for experiments. The central thimble was only used once during operation to determine dose levels during such use.

Control Rods and Control Rod Drives Three boron carbide control rods were operated in perforated aluminum guide tubes. The control rod has an extension tube that connects to the control rod drive mechanism. The control rod drive mechanism is located on the bridge at the top of the reactor pool. Control rods and control rod drives remain in place in the tank.

Reactor Water Cooling and Purification The reactor was cooled by natural convection of the pool water. A 5-ton freon vapor compression chiller with an air cooled condenser was used as the heat sink.

Water from the reactor went through a water monitor where the temperature, gamma activity, and conductivity of the water were measured. The water was pumped to the chiller unit, through a filter and a mixed-bed demineralizer, and then returned to the tank.

The water system served four functions:

I. Maintain low conductivity of the water to minimize corrosion of reactor components.

2. Reduce radioactivity in the water by removing particulate and soluble impurities.

3. Maintain optical clarity of the water.

4. Provide a means of dissipating the heat generated in the reactor.

Nuclear Control System A wide-range fission chamber and a boron-lined uncompensated ion chamber provided the reactor core monitoring system. The fission chamber and ion chamber were removed in December 2002.

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Facility Changes and Equipment Replacements and Approximate Dates The following list identifies the major facility changes that could have impacted the radiological status of the facility. Additional information notes from the review of historical information is contained in APPENDIX A to this report.

August 1966: The rotary specimen rack was replaced. The original rotary specimen rack is stored along with another irradiated component in a below ground location accessed from the outside noted on Figure 2.2 as SW 2D.

Sometime in the 1960's, the PTS, which was originally routed to the ISt floor, was cut and routed to the reactor laboratory.

1993 or 1994: Re-routed Ar-41 exhaust from the PTS from outside the reactor pit and connected into a fume hood in the reactor laboratory.

1995: A stainless steel TRIGA fuel element was added to the core on October 2, 1995, due to the core fuel bum-up since 1959.

1995: The terminus end of the PTS tube was replaced due to leakage. Leakage and leakage repairs are a frequent entry in the reactor records between 1983 and 1995.

1999: The original 1959 General Atomics console was replaced with a solid state General Atomics Mark II console along with safety, shim, and regulating rod drives.

1999: An inner wall between SW2A and SW2B was redesigned.

2.4 Identity of Contaminants Lead in paint and asbestos in building materials are the hazardous contaminants of concern that were analyzed for during the characterization survey.

The radionuclides of concern within AJB reactor facility are those associated with the sources possessed, long lived nuclides from experiment irradiation, and fission and activation products. The list of radionuclides from 10 CFR 61 Tables 1 and 2 were analyzed for as well as a number of other radionuclides that are typically identified in reactor facilities. Short-lived radionuclides from reactor operation and experiments are not a concern for decommissioning and were not analyzed for. Nuclides in this short lived category include: Na-24 (15 hour1.736111e-4 days 0.00417 hours 2.480159e-5 weeks 5.7075e-6 months half-life), Al-28 (2.3 minute half-life), V-52 (3.75 minute half-life) Co-58 (70 day half-life), Fe-59 (49 day half-life), Zr-95 (64 day half-life), Nb-95 (35 day half-life), Tc-99m (6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months half-life), I-131 (8 day half-life), Cs-136 (13 day half-life), Ba-140/ La-140 (13 day half-life), and Sm-153 (47 hour5.439815e-4 days 0.0131 hours 7.771164e-5 weeks 1.78835e-5 months half-life). A list of potential radionuclide contaminants considered during analysis is shown in Table 2.1.

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Table 2.1 Potential Radionuclides of Concern at the AJB Reactor Facility Nuclide Half Life Major Radiations Ene gies (MeV) and intensities (%)

Alpha Beta (average) Gamua H-3 12.28 yrs 5.685 keV 100%

C-14 5730 yrs 49.47 keV 100%

Mn-54 312.7 days 834.8 keV 99.98%

Fe-55 2.7 yrs Low energy x-rays Co-57 270.9 days 122.06 keV 85.5 1%

Ni-59 7.5 E4 yrs Low energy x-rays Co-60 5.27 yrs 95.79 keV 100% 1173 keV 100%

1332 keV 100%

Ni-63 100.1 yrs 17.13 keV 100%

Zn-65 244.4 days 1116 keV 50.75 %

SrlY-90 28.6 yrs 195.8 keV 100%

934.8 keV 100%

Nb-94 2.03 E4 yrs 145.8 keV 100% 702.6 keV 100%

871.1 keV 100%

Tc-99 2.13 E5 yrs 84.6 keV 100%

Ag-i lOm 249.8 days 66.6 keV 98.4% 657.7 keV 94.4%

884.7 keV 72.6%

1-129 1.57 E7 yrs 40.9 keV 100% 39.58 keV 7.5%

Cs-134 2.06 yrs 156.8 keV 100% 604.7 keV 97.6%

795.8 keV 85.4%

Cs-137 30.17 yrs 156.8 keV 94.6% 661.2 keV 85.1%

415.2 keV 5.4%

Eu-152 13.6 yrs 300.8 keV 27.8% 121.8 keV 28.4 %

964 keV 14.4%

1085.8 keV 10%

1112keV 13.3%

1407 keV 20.7%

344 keV 26.5 %

778.9 keV 12.7%

Eu-154 8.8 yrs 225.4 keV 100% 123.1 keV 40%

1274keV 35.5%

Eu-155 4.96 yrs 45.2 keV 100% 86.5 keV 31%

105.3 keV 20.7%

Pb-2 10 22.26 yrs 6.5 keV 100% Low energy photon Th-230 7.7 E4 yrs 4670 keV 100%

U-234 2.45 E5 yrs 4724 keV 27.4%

4776 keV 72.4%

U-235 7 E8 yrs 4396 keV 55% 143.8 keV 10.5%

185.7 keV 54%

U-238* 4.51E9yrs 5150 keV 25% 103 keV 21% 63 keV 3.5%

4200 keV 75% 193 keV 79% 93 keV 5.4%

Pu-239 2.41 E4 yrs 5104 keV 11.5%

5142 keV 15.1%

5155 keV 73.3%

Pu-241 14.4 yrs 5.23 keV 100%

Am-241 432 yrs 5443 keV 13% 59.5 keV 35.9%

5486 keV 85%

The beta pariicles and gamma photons for U-238 are from the Th-234 daughter.

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The only sample at the AJB reactor facility with enough activity to analyze for radionuclide-specific activity concentrations was a resin sample from the reactor coolant demineralizer. The resin sample was sent to Eberline Services Laboratory for analysis. Sample analysis can be used to determine the radionuclides of concern for decommissioning and final survey. The results of the resin analysis are summarized in Table 2.2. Many of the results are below the minimum detectable activity (MDA); those above the MDA are bolded. Attachment 1 to this report provides the Eberline Services Final Report of Analysis Summary and the case narrative. APPENDIX F provides Eberline's analysis report package for this sample.

Derived concentration guideline levels (DCGLs) were calculated from the nuclide mixture identified in the resin sample. The NRC criterion (10 CFR 20.1402) for unrestricted use is 25 mrem/yr annual total effective dose equivalent. Therefore, the DCGL is the activity level that would deliver this dose to an average member of the public. The calculation and resulting DCGL of 27,000 dpml100 cm 2 are provided in Section 8 and Attachment 2 of this report. The data collected during this characterization were collected using a conservative value of 5,000 dpm/l 00 cm2 as a preliminary guideline. The resin sample analysis results were available after demobilization from the site, and the data were then reviewed against the site specific DCGL. The 5,000 dpm/lOO cm2 preliminary guideline was a conservative estimate for survey planning and data collection.

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Table 2.2 Resin Sample Analysis Results Summary Sample Number VA-02-0176 Collected 11/26/02 Analyzed by Eberline Services Radionuclide Result Uncertainty MDA pCO/ pCi/g pCi/g Ag-IlOM 2.39E-01 2.16E-01 3.5 1E-OI An-241 1.36E-02 4. 1OE-02 1.03E-O1 C-14 4.OOE+02 5.94E+00 3.22E+OO Cm-244 3.70E-02 4.89E-02 7.52E-02 Co-57 1.02E+00 1.81E-O1 l.1OE-01 Co-60 2.61E+01 2.03E+00 3.36E-01 Cs-134 8.51E-02 1.75E-01 2.96E-01 Cs-137 5.37E-01 3.52E-01 3.74E-01 Eu-152 5.33E+00 9.91E-01 1.08E+OO Eu-154 2.29E-01 4.07E-01 7.49E-01 Eu-155 2.53E-01 2.08E-01 3.48E-O1 Fe-55 2.95E+01 9.73E+02 1.36E+02 Gross Alpha 9.60E-01 4.89E-01 6.14E-01 Gross Beta 2.42E+01 1.47E+00 8.48E-O1 H-3 7.79E+00 2.29E+00 3.58E+OO 1-129 -5.72E-02 1.97E-01 3.26E-01 Mn-54 1.54E-01 2.42E-01 4.23E-01 Nb-94 3.91E-02 2.65E-01 4.56E-O1 Ni-59 -6.00 E+00 1.39E+01 1.80E+01 Np-237 2.33E-02 5.69E-02 1.30E-O1 Pb-210 3.79E+00 7.97E-01 9.95E-01 Pu-238 -8.03E-03 9.37E-03 9.49E-02 Pu-239 2.88E-02 4.51 E-02 7.28E-02 Pu-241 S.61E+00 2.96E+00 5.1 1E+OO Pu242 O.OOE+00 O.OOE+0O 5.85E-02 Pu-244 2.16E_-02 4.34E-02 5.86E-02 Tc-99 I_.OlE+OO 9.81E-01 1.64E+OO Th-228 -2.65E-04 2.79E-02 9.44E-02 Th-230 2.64E-01 1.25E-01 6.92E-02 Th-232 1.91E-03 2.7__3E-02 8.92E-02 Total Sr 3.29E-01 4.12E-01 6.92E-01 U-234 1.05E-02 2.58E-02 5.87E-02 U-235 -2.66E-03 5.34E-03 7.24E-02 U-236 0.OOE+00 O.OOE+OO 3.81 E-02 U-238 2.3 1E-02 3.62E-02 5.85E-02 Zn-65 1.61E+00 7.62E-01 9.39E-O1 Bolded results are those that exceeded the analysis MDA.

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Due to the complexity with trying to come up with an assumed mixture prior to characterization, alpha survey instruments were calibrated using Th-230, and beta survey instruments were calibrated using Tc-99. The use of detectors calibrated using Tc-99 and Th-230 for the characterization was conservative considering the energies and yields of the alpha and beta particles emitted from the range of potential radionuclides at the AJB Reactor Facility. Coincidentally, Th-230 was the only alpha emitting radionuclide detected in the offsite analysis.

2.5 Historical Site Assessment An historical site assessment was performed and information gathered was used to design the Characterization Survey Plan and survey packages. APPENDIX A contains a list of the documents reviewed. The following past and present individuals provided time for interviews and the information provided was extremely useful for completing the characterization effort.

Individual Position Employment Dates John Claassen Reactor Manager 2/89 - 1/03 Mike Christiansen Radiation Safety Officer 1996 - present Ed Fennell Research Service Electronics 1976 - present Technician Lynell Klassen, M.D. Associate Chief of Staff for 1991 - present Research Dean Tuma, Ph.D. Research Chemist 1963 - present Greg Hansen Reactor Operator 1984- 1988 Ron Jones Engineering 1996 - present Jan Vallery Health and Safety Manager 1989 - present Revision 0 27of 69

3.0 ORGANIZATION AND RESPONSIBILITIES The on-site survey team consisted of a project manager, senior health physics (HP) technicians, and a data management technician. These personnel were trained, qualified, and experienced in field radiological survey procedures and had current HAZWOPER training. Each individual on the survey team had over 15 years of radiological survey experience.

3.1 Project Manager (On-site)

The project manager was the primary point of contact and interface with the VA staff and their contractors. The minimum requirements for the project manager were 5-10 years of health physics experience including prior management experience.

He was responsible for the supervision and coordination of the daily activities and surveys. He was qualified in the use of the survey instruments used, all aspects of surveying as described in the characterization plan, and was familiar with the survey methods described in NUREG- 1575 (MARSSIM).

3.2 Health Physics (HP) Technician(s)

The HP technician(s) were responsible for performing the characterization surveys, collecting samples, and analyzing the samples as necessary. They were qualified in the use of the survey instruments and the performance of surveys in accordance with NUREG-1575 as well as the characterization survey plan.

3.3 Duratek Data Management Technician The on site data technician was responsible for assisting with data transfer from data loggers to download files and for ensuring that all data were accurately retained and consolidated into a database and spreadsheets.

3.4 Certified Health Physicists Certified health physicists were available to support technical issues, prepare plans and reports, and assist the project manger and technicians as needed.

3.5 Subcontractors The characterization included support from three subcontractors: HDR Engineering performed the borings, The Assessment Group, Inc. performed hazardous materials sampling for lead paint and asbestos in materials, and Eberline Services performed offsite radiochemical analysis.

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4.0 CHARACTERIZATION TASKS The major tasks for the AJB reactor facility characterization included:

1. Performing an historical site assessment of the AJB reactor facility.

2. Performing a background radiation study of surfaces of similar material to those to be characterized at the AJB reactor facility.

3. Performing a radiological characterization of outside areas adjacent to the AJB reactor facility.

4. Performing radiological characterization of the rooms, structures, and components.

5. Performing radiological characterization of fume hoods, ventilation systems, and the areas near exhaust points.

6. Performing radiological characterization of sinks and drain lines within and exiting the AJB reactor facility.

7. Calculating DCGLs for the radionuclide mixture of a representative sample analyzed by Eberline Services Laboratory.

8. Performing neutron activation analysis of areas surrounding and outside the reactor pool.

9. Performing soil core borings around the reactor core to evaluate soil contamination and ground water flow pathway.

10. Performing hazardous sampling and analysis for bulk asbestos and lead paint.

11. Preparing a list of materials, volumes, linear feet of contaminated piping, imbedded piping, and recommendations for disposition of all materials.

12. Developing a report that addresses the survey objectives and survey results.

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5.0 SURVEY OVERVIEW The characterization followed the general guidance provided in NUREG-1575, Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM). The characterization survey is frequently the most comprehensive of the surveys in the decommissioning process, and as such, more measurements are frequently taken in this survey than in the Final Status Survey. The intent was to collect enough measurements so that the areas could be appropriately classified for remediation and final survey.

The survey included survey unit classification, systematic and/or random measurements, and surface scans. The characterization survey was based in part on the guidance contained in the MARSSIM. Design of the survey included the establishment of the Data Quality Objectives, defining the number and types of measurements per survey unit, and specifying the MDA requirements.

To ensure that the measurements were of facility residual contamination rather than influenced by sources or radioactive waste, it was optimum to have materials such as waste, sources, and irradiated samples, removed prior to characterization. Areas where measurements were influenced by a nearby source required taking a shielded background measurement at each survey measurement location. This technique provided the best estimate for subtracting the influence from sources or waste materials.

5.1 Data Quality Objectives To ensure that the survey would provide the necessary data for the VA to develop a detailed decommissioning plan and provide data that might be used as final survey data, the following survey objectives were established in the Characterization Survey Plan and the Quality Assurance Project Plan.

1. Identify the radionuclides of concern and DCGLs by

a. collecting representative samples throughout the facility,

b. analyzing samples at an onsite and offsite laboratory, and

c. reviewing previous data.

2. Identify the extent of the contamination and, where applicable, the depth of the contamination.

3. Estimate waste volumes.

4. Estimate the scope of future remediation and decontamination required to achieve license termination.

5. Assure instrument accuracy through calibration of instrumentation with sources traceable to the National Institute of Standards and Technology (NIST) and the thorough daily verification of instrument response QC Revision 0 30 of 69

checks.

6. Assure instrument reliability of both field and laboratory instruments by performing daily QC checks as required by Duratek procedure REDS-INST-104 Calibrationand Test Requirementsfor RadiationProtection Instrumentation.

7. Ensure representativeness of survey measurements and samples by a careful overview of all data with particular focus on duplicate and split sample analysis and results.

8. Ensure completeness of survey packages through repetitive, concurrent reviews of survey results relative to the Characterization Survey Plan and survey package data requirements.

9. Provide the radionuclide data for the determination of DCGLs.

10. Comply with the Site Characterization Survey Plan by ensuring all the surveys are complete and meet sensitivity, accuracy, and reproducibility requirements, and are well documented.

11. Ensure data collection is optimized by walking down all areas to be surveyed as part of the characterization survey package development.

Minimum data requirements will be defined, special conditions identified, specific instruction given, etc. during the walkdowns.

12. To minimize uncertainty, efficiency checks, source checks, background checks, data reviews, etc. will be conducted.

13. MDAs for each measurement will be set at the following levels:

1000 dpm/lOOcm 2 direct beta

100 dpm/lOOcm 2 direct alpha

200 dpm/lOOcm 2 removable beta

20 dpm/lOOcm 2 removable alpha

14. To ensure that samples selected for offsite analysis receive the proper controls necessary to reduce the possibility for lost or mislabeled samples, the contract laboratory chain of custody forms will be implemented to address the steps and requirements for the identification and control of samples.

Surveys and data evaluation were based on the guidance in NUREG-1575, Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM), and included measurements for exposure rate, direct surface activity, removable activity, and radionuclide analysis.

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5.2 Structure Surveys Characterization surveys of building surfaces and structures (including paved areas outside the facility) included surface scanning, surface activity measurements (alpha and beta), exposure rate measurements, and sample collection (e.g., smears, subfloor soil, water, paint). Both systematic and biased measurements were taken. Biased measurements were based on the judgment of the survey team and included areas where scans were elevated. Biased measurements provide information on the upper range of residual contamination levels.

5.3 Land Area Surveys Characterization surveys for surface and subsurface soils included surface gamma scans, and soil sample collection and analysis.

Boring samples were obtained at 4 locations to depths of 10 feet below the reactor pit (approximately 36 feet) to determine the vertical and horizontal contamination (if any) from the reactor either due to neutron activation or tank leakage. It is noted that the reactor personnel indicate that operational data, such as make up water volumes, indicate that there was no tank leakage. Three test wells were installed outside of the facility and the removed soils sampled. The test wells were installed to depths of 100 to 131 feet.

5.4 Background Study A background study was performed on building materials to determine direct measurement levels from areas similar to but not associated with reactor operations. The local background determination served as the baseline for the characterization survey data. The background study could be used in the evaluation of the onsite survey data and, as such, was designed so that measurements (and if necessary, sampling, sample preparation, and sample analysis activities) were similar to those used for the onsite measurements.

The background reference areas were selected from areas not impacted by operation of the reactor or the hospital or research facility's radionuclide use. The reference areas had similar physical, radiological, and geological characteristics as the impacted survey unit areas but were unaffected by radionuclide use.

The data collected during the background study was reviewed for trends and statistics performed on the various data sets. The background data could be used for evaluation of the site radiological survey data. Data collected from the AJB reactor facility site could be compared to the background data to determine if it is statistically different. If site residual activity levels are near the expected DCGL2 ,

2 DCGLs were developed after the characterization survey was performed, and results of the radionuclides and their relative activities were identified through analysis at Eberline Services laboratory.

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then a background statistic could be developed which could be added to the residual radioactivity criteria to establish the cleanup goals.

Direct beta measurements were taken for the various background surfaces. The number of measurements for each surface were defined in the survey package.

A background study of soils was not performed because no licensed activity was detected in the characterization soil samples. If radionuclides attributable to licensed activities (e.g. Cs-137) had been identified in significant quantities in the characterization soil samples, then a background study would have been performed on soils, sediments, and waters with common characteristics to the samples and measurements collected onsite but that were unaffected by reactor operations.

5.5 Characterization Survey Classification Approach After completion of the background study, characterization surveys were performed. The characterization surveys used a classification approach that distinguishes between the following:

Impacted - Areas potentially affected by reactor operations (e.g., areas that may have been contaminated and/or activated by reactor operations)

Non-Impacted - Areas not suspected of being affected by reactor operations The site area classifications were based on a review of the site history as documented in the updated Safety Analysis Report (SAR), the AJB reactor facility emergency plan, and information gathered during the historical site assessment.

5.6 Impacted Area Survey and Sample Plan Methodology Areas classified as impacted had the potential of being radioactively contaminated based upon operations conducted in the area. These areas comprised the following.

Reactor Room and Pool (SW 2)

Nuclear Research Labs (SW 2C)

Radioisotope Reactor Research Laboratory (SW 2)

Office and Lab (SW 2E)

General Storage Area (SW 2F)

General Storage Area - vertical and horizontal storage tubes

Refrigeration Area (SW 2D)

Supply Warehouse (SW 3)

Male Locker Room, Shower, and Restroom (SW I and SW IA)

Pit Outside the Walk-in Cooler (accessed from outside, houses the walk-in cooler)

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East Cooling Pit Area (main reactor ventilation unit, area also houses water filters, water demineralizer, and a sump, accessed from outside)

Dark Room (SW 2B)

Electron Microscope Room (SW2A)

Fume Hood Ventilation Units in Labs and at the Roof Discharge points

Penetrations and Drain Lines in the various rooms

Stairway (south side of the Reactor Research Laboratory)

The objective of measurements and sampling in impacted areas was to confirm the presence or absence of radioactive material in excess of background readings and to determine the extent of contamination in building, equipment, and environmental media through a program of systematic and biased measurements and sampling.

A 1 square meter grid reference was established and measurements taken at each grid intersection on floors and walls up to 2 meters.

Ceilings were surveyed as impacted - Class 3 in accordance with the instructions in the survey package.

Surface measurements included:

direct beta measurements,

direct alpha measurements,

beta scans inside, exposure rate scans outside, and

removable alpha and beta (smears).

Biased measurements were taken at locations showing elevated scans or locations where contamination is likely (such as horizontal surfaces).

5.7 Non-Impacted Area Survey and Sample Plan Methodology In non-impacted areas the presence of radioactive material is not expected. These areas included the areas chosen for background surveys and outside areas (the roof, building exteriors, sidewalks, parking lots, and soils). Non-impacted areas were divided into sampling strata representing distinct statistical populations based on type of environmental medium, depositional mechanisms, or structural and process similarities.

The samples and measurements for non-impacted included: direct beta, direct alpha, beta scans for inside areas, gamma scans for outside areas, surface and subsurface soil samples, and removable alpha and beta (smears).

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5.8 Neutron Activation Analysis of the Core Area Neutron activation analysis calculations were performed to determine potential radionuclides in the materials surrounding the reactor. The reactor pit materials are described in Section 2.3 of this report. This analysis estimated the extent that concrete, soil, and other media materials may have become radioactively activated as a result of reactor operations.

5.9 Deep Soil Borings HDR Engineering performed a total of four borings around the core area. Three of these borings were performed vertically. One angular boring allowed for a sample beneath the core area. The test borings were drilled in the soil backfill zone around the reactor pit. These borings varied in distance from the reactor wall to develop a profile of activity that may exist out from the reactor and into the soil.

The borings extended to a depth of 10 feet below the base of the reactor pit. Soil samples were initially analyzed using the onsite gamma spectroscopy equipment.

If significant activity had been found in any sample, then the highest representative sample would have been shipped off site for additional analysis (e.g., hard-to-detect nuclides).

5.10 Hazardous Materials Assessment A hazardous material walk down was performed to identify possible hazardous constituents (e.g., asbestos, lead, PCB oils, PCB lead based paint, PCB lamp ballasts, mercury lamps, etc.) that may be present at the facility.

No contaminants other than lead and asbestos were discovered.

Asbestos The Assessment Group Inc. conducted a modified AHERA asbestos inspection and obtained applicable samples for analysis at the AJB reactor facility. Bulk asbestos samples were sent to an accredited laboratory for analysis.

Lead Sampling for lead paint was initially conducted using chemical reaction swabs. At the conclusion of the swab sampling, lead paint chip samples were taken and sent to a laboratory for analysis.

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5.11 Surface and Subsurface Soil Samples Surface (O- 6") and subsurface (O- 12") soil samples were taken in accordance with survey package instructions. Because no outside areas showed elevated gamma scan measurements, samples were taken in biased judgment locations where there is a potential for material contaminated by reactor operations. The samples were analyzed on site by gamma spectroscopy.

5.12 Number of Samples/Measurements The simplified procedures in MARSSIM recommend a minimum of 30 measurements in each survey unit. A minimum of 30 measurements in each survey unit was used for this characterization.

In accordance with guidance in MARSSIM, inside grids were I square meter for the impacted survey unit floors and walls below 2 meters. Grids for non-impacted outside areas are not required.

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6.0 SURVEY DESIGN AND IMPLEMENTATION The purpose of the survey was to collect sufficient survey data to characterize AJB Reactor Facility. The project technician(s) performed surveys according to survey packages, specific procedures, and the Characterization Survey Plan. Implementation of this Characterization Survey Plan included the following:

Survey instrumentation was set up and source checked to ensure proper operation.

The project manager and technicians performed preliminary inspections of the areas to identify additional specific survey requirements.

The technicians or project manager developed survey packages for the survey areas.

The technician gridded the survey areas as specified by the survey package protocols and/or marked the survey locations as applicable.

The technician took survey measurements and analyzed samples using appropriate calibrated instruments and performed daily source and background checks before and after each day's work.

Direct survey data were collected during the project and downloaded from the survey instrument into a database for storage and processing.

Measurement locations were marked on a map.

The project manager reviewed the completed survey packages to ensure that all required surveys had been performed.

The technician and project manager reviewed the survey results to identify any areas exceeding the preliminary guideline value of 5,000 dpm/l 00 cm 2 .

6.1 Instrumentation and Selection Selection and use of survey instrumentation ensured sensitivities were sufficient to detect the identified radionuclides at the minimum detection requirements.

Table 6.1 provides a list of the instruments, types of radiations detected, and calibration sources that were used. Table 6.2 is the table from the QAPP that defined the project detection sensitivity requirements.

Duratek used the Ludlum Model 2350 Data Logger with a variety of detectors for direct beta measurements and beta scans. The Data Logger is a portable microprocessor computer-based counting instrument capable of operation with NaI(TI) gamma scintillation, gas-flow proportional, GM and ZnS scintillation detectors. Detector selection depended on the type of survey, surface contour, and survey area size. The project team typically used the 126 cm 2 gas-flow proportional detector for direct alpha and direct beta measurements for most areas, and the 15.5 cm 2 GM detector for smaller areas in which the gas-flow proportional detector will not fit or for the release of items and equipment.

Analysis for removable alpha and beta activity was performed using a Tennelec LB 5100 low background smear counter at the Duratek facility in Kingston, Tennessee.

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Analysis of soil, water and miscellaneous debris samples was performed using a Canberra high purity germanium (HPGe) detector/gamma spectroscopy system.

Table 6.1 Survey Instrumentation Detector Radiation Calibration Instrument/Detector Type Detected Source Use Direct alpha and Ludlum Model 2350 with Gas-flow Alph 230Th ( direct beta 43-68, 43-98, 43-94 or 43- proportional Apha or T a) surveys; Beta 106 detector (126cm 2 ) eta Tc ( scans on solid surfaces.

2 30 Ludlum Model 2350/ SP- GM P Detet Alpha or Th (a) Direct beta pipe 113-3m or SP-175-3m G pe etector Beta 99Tc (P3) survey.

Ludlum Model 2350/ 43- Ga-lwAlpha or 23Th (ac) Direct beta pipe 98, or 43-94 or PSL 3R proportional pipe Beta 99 Tc (,) survey.

detectors Direct beta Ludlum. Model 2350 with Shielded GM Beta 99Tc surveys; Beta 44-40 detector (15.5cm 2 ) scans on solid surfaces.

Exposure rate Eberline R07 Ion Chamber Gamma 13 7 cs profiles for (gamma) components in the reactor pool.

Ludlum Model 2350 with Nal (TI) G37CS Gamma exposure 44-2 or 44-10 detector Scintillator Gamma (gamma) rate and gamma scans.

Tennelec LBS 100 TennlecLB5 Low 00Low Shielded gas-flow Alpha and24241 AM (aX)

Background Planchette proportional Beta 99 Tc (,) Smear counting Counter Nuclide Canberra Genie PC . identification and Gamma Spectrometer HPGe Gamma Mxmed quantification of gamma soil and sand samples.

Packard Liquid LSC Tritium smear Scintillation Counter H-3 H-3 counting Revision 0 38 of 69

Table 6.2 Measurement Sensitivity: MDL, MDC, MDA Sample/ Measurement Analysis Sensitivity Type 2 Smears On site gross alpha beta 2 MDA 200 dpm/l00 cm beta MDA 20 dpm/l00 cm2 alpha Direct alpha and beta Field measurements MDA 1000 dpm/l00 cm2 beta measurements MDA 100 dpm/l00 cm2 alpha Soil Samples, Core On site gamma spectral MDA 0.5 pCi/g Cs-137 Samples, miscellaneous analysis sediment or crud Water samples On site gamma spectral MDA 20 pCi/L Cs-137 analysis Ion Exchange Resin Sample Off Site 10 CFR 61 analysis See Attachment 1 to this report Bulk Asbestos PLM MDL approximately 1% by EPA method M4-82-020 weight Paint Chip Analysis Direct Aspiration Flame MDL = 0.005% by weight (50 Atomic Absorption ppm) [The reporting level is 2 EPA method 7420 times the MDL]

6.1.1 Instrument Calibration The data loggers, associated detectors, and all other portable instrumentation were calibrated on a semi-annual basis using National Institute of Standards and Technology (NIST) traceable sources and calibration equipment. Calibration includes:

High voltage calibration,

Discriminator/threshold calibration,

Window calibration,

Alarm operation verification, and

Scaler calibration verification The detector calibration included:

Operating voltage determination,

Calibration constant determination, and

Dead time correction determination Calibration labels showing the instrument identification number, calibration date, and calibration due date were attached to all portable field instruments.

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6.1.2 Sources All sources used for calibration or efficiency determinations for the survey were representative of the instrument's response to the identified radionuclides and are traceable to NIST.

Health physics technicians controlled the radioactive sources used for instrument response checks and efficiency determinations. Sources were stored securely when not in use.

6.2 Survey Unit Classification Survey units are discrete areas consisting of building surfaces of a specific size and shape. Survey units were defined based on the site's history, potential for residual contamination, and physical characteristics. All impacted areas were divided into survey units. Impacted areas were those areas with a potential of being contaminated. Non-impacted areas were generally areas that did not have a potential for being contaminated. Background measurements and outside areas were surveyed as non-impacted.

hipacted survey units were classified as Class 1, 2, or 3. A Class 1 survey unit is a survey unit where contamination levels prior to remediation were anticipated to approach or exceed the preliminary guideline level (5000 dpm/l 00 cm2 beta). A Class 2 survey unit is a survey unit that did not have contamination approaching or exceeding the preliminary guideline level. Typically Class 2 survey units would not require remediation. A Class 3 survey unit is expected to contain contamination at a fraction (< 10 %) of the preliminary guideline. Although no areas at the AJB Reactor Facility were expected to contain residual activity, floor areas where radioactive materials were used or stored were conservatively classified as Class 1.

Survey units are limited in size to ensure adequate survey coverage. The type of measurements and scanning coverage are also defined for each survey unit classification. The size limits, measurements, scanning frequency, and a conservative preliminary classification are specified in Table 6.3.

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Table 6.3 Survey Units Impacted Survey Size Limit, m2 Scan Frequency AJB Reactor Unit Classification Facility Initial Classification Class I Building < 100 100 % coverage of Floors of reactor Surfaces! accessible floors facility rooms, structures walls to 2 meters, and wall vaults Class 2 Building <1,000 10- 100% No areas at the AJB Surfaces/ coverage reactor facility were structures classified as Class 2 Class 3 Building No limit Judgment Walls, ceilings, Surfaces/ overhead structures structures Based on the probability for contamination, the floors were classified as Class 1, and the walls, ceilings, and overhead structures were initially classified as Class 3 impacted.

The survey plan included guidelines to reclassify survey units when residual activity was encountered at higher than a preset limit during the survey process.

No areas required reclassification.

6.3 Survey Package Development For each survey area/unit, the project team developed a package by performing a walk-down and preparing a worksheet/tracking sheet outlining the general survey instructions, location codes, and any specific survey instructions for any abnormal conditions within the survey area. Completion and review signature blocks were used to track the progress of the surveys.

During the survey, the technician updated the survey package(s) with the survey data and results of any special surveys or sample analyses performed.

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6.4 Survey Protocols/Requirements The characterization of the building consisted of gamma scans, beta scans, fixed beta measurements, fixed alpha measurement, and smears for gross alpha and beta analysis. Gamma scans were performed over outside areas. Surveys were performed as follows:

6.4.1 Surface Gamma Scans and Beta Scans For class 1 survey units, gamma scans and beta scans were performed over 100% of the accessible building surfaces (interior) using a Nal detector and a gas-flow proportional detector while listening to the audible output of the instrument. There were no class 2 areas. For Class 3 survey units, beta scans were performed over approximately 10% of the accessible building surfaces. All areas of elevated activity were identified for further investigation and potential decontamination. Beta scan speeds were established such that contamination at levels below the preliminary guideline of 5000 dpm/100 cm2 beta would be detected (using the MDA scanning equation defined in section 7.0).

Gamma scans were performed with 2 inch by 2 inch Nal(TI) detectors approximately 10 cm from the surface at a scan rate of approximately 0.5 m/s. The MARSSIM approximates the soil detection sensitivity under these measurement conditions to be 6.4 pCi/g for Cs-137 and 3.4 pCi/g for Co-60. These radionuclides were identified in the resin sample analysis.

The sensitivity provides information on the activity concentrations that can be seen with gamma scans.

6.4.2 Direct Alpha and Beta Measurements Direct alpha and beta measurements were taken on the structural surfaces of AJB Reactor Facility within each survey area/unit. A minimum of 30 beta measurement locations were established in each survey unit. Alpha measurements were taken at approximately 10% of the measurement locations.

6.4.3 Removable Activity Measurements Smears were taken at each direct measurement location for gross alpha and beta analysis.

Tritium smears were taken at approximately 10% of measurement locations.

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6.4.4 Grid Spacing Only floors and walls in Class I areas were gridded. All measurement locations were marked on appropriate drawings. The grid spacing was 1 square meter unless otherwise directed by the project manager.

6.5 Survey Records The project team maintained records of surveys in the survey packages for each area. The survey package included the following records depending upon the survey design and protocols:

Survey Package Worksheet giving the package identification, survey location information, general survey instructions, and any specific survey instructions

Survey Unit Diagram of the area to be surveyed as available

Photographs of the survey area, as necessary, to show special or unique conditions

Printout of laboratory analysis results (if performed)

Ludlum Model 2350 data files and associated spreadsheets for all radiation survey measurements Duratek used a proprietary computer program to download the contents and survey data from the Data Logger's memory to a database and generate a survey report that presents all raw data, converted data, and information by survey location. The survey technician and supervisor reviewed these reports for completeness, accuracy, suspect entries, and compare the data to requirements of this plan and the Quality Assurance Project Plan (QAPP) for this characterization.

Any changes to the database tables, such as detector efficiency and background that could affect survey results required management approval.

Data and document control included the maintenance of the raw data files, translated data files (spreadsheets), and documentation of all corrections made to the data. The databases were backed up on a daily basis.

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7.0 MINIMUM DETECTABLE ACTIVITY, MDA MDA is defined as the smallest amount or concentration of radioactive material that will yield a net positive count with a 5% probability of falsely interpreting background responses as true activity. The MDA is dependent upon count times, geometry, sample size, detector efficiency background, and for scanning the scanning rate and the efficiency of the surveyor.

The MDAs for direct alpha and beta measurements and analyses for removable activity were set at the values specified in the QAPP (Table 6.2 of this report). The MDA for beta scans was set equal to or less then 5000 dpm/100 cm2 . Since the MDA for scanning was equal to or less than the preliminary guideline, the scanning MDAs did not affect the number of measurements or samples required to evaluate a specific survey unit.

Direct Measurements The equation used for calculating the MDA for direct measurements is:

- + 3.29 &L+ -

MDA t ts tb E ( `)

Where: MDA = Minimum Detectable Activity (dpm/100 cm 2 )

Rb = Background Count Rate (cpm) tb = Background Count Time (min) ts = Sample Count Time (min)

A = Detector Area (cm 2 )

E = Detector Efficiency (c/d)

Beta Scans The equation used for calculating the MDA for beta scans is:

d' ;* 60 MDA=

V*+/-A Ei*E,*f;* o100 Where: MDA = Minimum Detectable Activity (dpm/100 cm2 )

d' = Decision error taken from Table 6-5 of MARSSIM i = Observation counting interval (scan speed divided by the detector width) bi = Background count per observation interval Es = Detector Efficiency counts per disintegration (cfd)

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Es = Surface Efficiency (typically around 50% for beta contamination on concrete) p = Surveyor Efficiency (typically 0.5 - 0.75 MASSIM recommends using 0.5)

A = Detector Area (cm 2 )

8.0 CHARACTERIZATION SURVEY RESULTS All survey package results with the associated documentation and drawings of each are contained in APPENDIX B to this report. A summary of the alpha and beta smear sample analysis is contained in Attachment 4 of this report. Summaries of tritium smears, total beta surface contamination measurement, total alpha surface contamination measurements, gamma exposure rate measurements, and gamma spectral analysis results can be found in Attachments 5 through 9 of this report. Figure 8.1 provides a reference of the breakdown of areas into the survey package numbers. A key to the location codes can be found in the front of APPENDIX B.

A slight negative bias was noted on the smear sample results. The smear results are reported in net dpm/100 cm 2 . A blank smear sample is counted for 20 minutes daily prior to counting samples. The blank smear result is then subtracted from each subsequent measurement for the day. Most of the smears taken at the A.J. Blotcky facility did not show contamination and were essentially background measurements. The daily blank may have had slightly more background activity on it than the samples obtained during characterization. All data was reviewed and because the blank background data are low, the measurement counts are low, and the MDAs are all low, this bias does not change the decisions about the data. A reanalysis of the data without background (blank sample) subtraction would make all results greater than zero but would still be minimal.

A slight negative bias was also noted for a few locations of direct measurements. Review of the data showed these locations had measurements that were very close to and sometimes slightly less than the instrument background measurements. The data are well below the MDA and if the background measurements were removed from the data sets showing a negative bias, the conclusion for these locations would still be that the areas do not contain residual activity.

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Figure 8.1 Survey Areas Ih R OU P6::mga A0003 Pit-acage A0002 IlSacREWge AO1OOI Arrows indcate evacuaton route N Dashed IMe ikcates operaon bouncy To first floorresearch Revision 0 46 of 69

8.1 Enviromnental Background Results (Package NOOO1)

Package Description Background measurements were taken on surfaces with similar material characteristics as those being measured for the characterization. The background measurement locations were locations that were unaffected by licensed operations.

Data Summary Material descriptions and summaries of the data collected are presented in Table 8.1. These data could be used for comparison or statistical analysis with the measurement data for the survey packages of impacted areas. Comparisons or statistical evaluations between background areas and impacted survey areas were not required to evaluate the radiological status of the areas.

Table 8.1 Environmental Background Results (Package N0001 Location Description Measurement Number Maximum Mean Std Dev

. Type dpmI/100 cm 2 dpmlOO cm 2 dpm/100 cm' NOOOIZZZZZ Background/BOO 11 Total beta 30 787 560 169 Ceiling Tiles Basement contamination NOOOIZZZZZ Background Total beta 30 934 595 169 B0009 Painted brick contamination Rn-LB003 NOOOIZZZZZ Background Total beta 30 1404 957 215 BOO 10 contamination Bare Brick in Rim B003 _

NOOO1ZZZZZ Background Total beta 30 714 409 137 BOOO1 Concrete contamination NOOOIZZZZZ Background Total beta 30 1286 683 265 B0003/Sealed Concrete contamination Sidewalk_

NOOO1ZZZZZ B9999/Tile Floor Total beta 30 387 142 142 Basement contamination NOOOIZZZZ Background Total beta 30 1454 942 150 B00061/Tile Walls contamination I Revision 0 47 of 69

8.2 Outside Areas (Package N0002)

Package Description Measurements of various outside areas were taken. The data includes sidewalks, parking lots, building exteriors, the roof area around the ventilation discharge point, and surface (0-6 inch) and subsurface (6-12 inch) soil samples.

Data Summary Summaries of the data collected are presented in Table 8.2. The 15 roof measurements initially appeared as though it may be elevated so 30 additional total beta contamination measurements were taken. A sample of roof pebbles was counted by gamma spectroscopy; no licensed activity was detected.

Table 8.2 Outside Area Results (Package N0002)

Location Description Measurement Number Maximum Mean Std Dev Type dpm/100 cm2 dpm/100 cm2 Dpm/100 cm2 NOOO20IFEI Sidewalks and Parking Total beta 30 1396 544 417 Lot. contamination N000201FE2 Roof Total beta 45 1707 1131 278 contamination N000201WEI Building exterior Total beta 30 995 385 407

. contamination_

N00020IFEI Sidewalks and Parking Removable 30 3 0 1 Lot alpha N00020IFE1 Sidewalks and Parking Removable 30 9 4 4 Lot beta N000201 FE2 Roof Removable 15 7 1 2 alpha N000201FE2 Roof Removable 15 10 -1.4 5 beta N000201 WE 1 Building exterior Removable 30 3 0 2 alpha N000201WEI Building exterior Removable 30 17 -2 6 beta Maximum Mean Std Dev uRlhr uRlhr uR/hr N000201OL1 Exterior soil samples Exposure rate 30 13 11 1.2 measurements prior to sampling N000201OLI Exterior surface and Gamma 60 No radionuclides identified in any of the subsurface soil samples spectral 130 surface samples with the exception of naturally Sample numbers analysis and 30 occurring radionuclides VA-02-016 through subsurfacel VA-02-0175 N000201FE2 Pebbles from the roof Gamma 1 No radionuclides identified in any of the Sample number spectral samples with the exception of naturally VA-02-0181 analysis occurring radionuclides Revision 0 48 of 69

8.3 Rooms SW2A and SW2B (Package AOOOI)

Historical Summary Iodine-125 tracer experiments utilized the darkroom during 1980s and early 1990s. Other than iodine-125, radioactive materials were seldom used in this area. Research personnel used the area for non-radioactive studies. The room was completely refurbished to house a FACS SCANNER (high speed cell sorter) used in cancer research during 1999. In the spring of 2002 the FACS-SCANNER was moved to a new location in anticipation of decommissioning.

Package Description Measurements of the floors, walls, and structures within the room were surveyed.

Sinks were surveyed as part of the structure (the counter top). Drains were surveyed as part of the systems package (D0001).

Data Summary Summaries of the data collected are presented in Table 8.3. The data are all low in activity (many below the MDA), and no measurements exceeding approximately 25% of the preliminary guideline levels were noted.

Table 8.3 Rooms SW2A and SW2B Results (Package A0001)

Location Description Measurement Number Maximum Mean Std Dev 2

Type __ _ dpm/100 cm2? dpm/100 cm, dpm/100 cm AOOOlOlFOI Tile Floor Total beta 35 640 241 192

._ contamination AOOO1OSOI Structure I Cabinets Total beta 5 640 202 262 contamination AOOOlOIS02 Structure 2 Cabinet/Sink Total beta 10 97 -61 132 contamination AOOOIOISO3 Structure 3 Cabinet/sink Total beta 5 -132 -191 71 contamination AOO01OIWOI- Walls 1-4 Total beta 58 682 64 221 W04 contamination AOOOIOIFOI Tile Floor Total alpha 33 51 7 16 contamination AOOOlOIWO1- Walls 1-4 Total alpha 58 38 4 13 W04 contamination AOOO I01 FOI Tile Floor Removable 34 3 0 2 alpha AOOO 10I FOI Tile Floor Removable 34 4 -4 4 beta AOOOIO1SO Structure I Cabinets Removable 5 3 0 2 (smears) alpha AOOO1OISOI Structure I Cabinets Removable 5 13 6 5 (smears) beta AOOOIO IS02 Structure 2 Cabinet/Sink Removable 10 3 0 2 (smears) alpha AOOOIOIS02 Structure 2 Cabinet/Sink Removable 10 4 -2 4 (smears) beta Revision 0 49 of 69

Location Description Measurement Number Maximum Mean Std Dev Type . dpmIlOO cm2 dpm/100 cm2 dpnJ100 cm, AOOOIOIS03 Structure 3 Cabinet/sink Removable 5 3 1 2 alpha AOOOIOIS03 Structure 3 Cabinet/sink Removable 5 0 4 4 beta AOOOlOlWOI- Walls 14 Removable 58 7 0 2 W04 alpha AOOOlOIWOI- Walls 14 Removable 58 9 -3 5 W04 beta AOOOIOIFOI Rn. SW 2F - 2E Tritium 3 All tritium smears were less than the AOOO0101SOI Floor, Walls, Structures smears 1 instrument MDA (53 - 56 dpm/100 cm 2)

AOOO1OIS02 1 AOOOIOIS03 1 AOOOOlWOI-W04 7 8.4 Room SW2 - Reactor Room Console Area, Including Reactor Pool and Primary Cooling System Pit (Package A0002)

Historical Summary This area provided access to the reactor, back stairwell, and reactor console. This area was primarily used for reactor operations and maintenance. The area served as the reactor manager's office, research office, and records retention area. The pneumatic tube system is located in this area.

The majority of irradiations performed in this area consisted of various isotopes with half-lives of less than 10 minutes. Samples that were irradiated were prepared in adjoining rooms and counted in the shield located in the Southeast corner of the room.

Package Description Measurements of the floors, walls, primary cooling system pit, accessible parts of the pneumatic transfer system lab counter tops, trenches, and the structures within the room were surveyed. Sinks were surveyed as part of the structure (the counter top). Trench TOI is the sub floor around the top of the reactor. Trench T02 is the conduit below the floor for cables and PTS tubes. Drains were surveyed as part of the systems package (DOO01). The components within the reactor pool were characterized with an R07 and a high range detector; measurements obtained at a plane with the top of the reactor.

Data Summary Summaries of the data collected are presented in Table 8.4. Data are generally low in activity. The reactor pool cover, the pneumatic transfer system, and the east cooling pit floor are noted to have measurements exceeding 1,000 dpm/100 cm2 .

The components within the reactor pool ranged from 0.1 R/hr to 1.5 R/hr (see reactor core profile figure in package A0002 contained in APPENDIX B to this report). The east cooling pit was surveyed as a structure. The reactor cooling system piping and demineralizer tank were assumed to be contaminated due to the Revision 0 50 of 69

activity of the resin sample obtained from the system. No additional measurements were taken to characterize the tank. The tank and all piping and instrumentation are assumed to be contaminated and will need to be disposed of as radioactive waste.

Table 8.4 Room SW2: Reactor Room Console Area, Reactor Pool, Primary Cooling System Pit, Structures and Trenches Results (Package A0002)

Location Description Measurement Number Maximum Mean Std Dev Type dpml100 cm2 dpm/lO0 cm2 dpm/1OO cm2 A000201FO1 Rx Room Console Area/ Total beta 92 12116 313 1399 Tile Floor contamination A000201S01 Structures 1/Lead Shield Total beta 5 125 -16 89 contamination A000201S02 Structure 2/ Rx Control Total beta 5 39 -107 116 Panel contamination A000201S03 Structures 3 /Lab Counter Total beta 10 361 138 133 contamination A000201S04 Structure 4 / East Cooling Total beta 31 1734 508 343 Pit contamination A00020IT01 Trench 1/Pit Surrounding Total beta 10 604 282 198 RX contamination A000201T02 Trench 2/ Pneumatic Total beta 10 1243 304 389 Transfer System contamination A000201WO1- Walls 1-4 Total beta 90 808 269 278 W04 contamination A000201FOl Rx Room Console Area/ Total alpha 91 50 4 15 Tile Floor contamination A000201WOl- Walls 1-4 Total alpha 91 50 4 15 W04 contamination A000201FOI Rx Room Console Area/ Removable 91 3 1 2 Tile Floor alpha A000201FO1 Rx Room Console Area/ Removable 91 0 -4 4 Tile Floor beta A000201S01 Structures I/Lead Shield Removable 5 -1 -1 0 alpha A000201SOI Structures 1/Lead Shield Removable 5 0 4 3 beta A000201S02 Structure 2/ Rx Control Removable 5 3 0 2 Panel alpha A000201S02 Structure 2/ Rx Control Removable 5 0 -2 2 Panel beta A000201S03 Structures 3 /Lab Counter Removable 10 3 0 2 alpha .

A000201S03 Structures 3 /Lab Counter Removable 10 13 -1 6 A000201S04 Structure 4 / East Cooling Removable 31 7 . 2 Pit alpha .

A000201S04 Structure 4 / East Cooling Removable 31 6 -2 4 Pit beta A000201T01 Trench 1/Pit Surrounding Removable 10 7 1 3 RX alpha A00020IT01 Trench 1/Pit Surrounding Removable 10 69 7 23 RX beta Revision 0 51 of 69

Location Description Measurement Number Maximum Mean Std Dev Type 2 dpml100 cm dpnlOO cm A000201T02 Trench 2/ Pneumatic Removable 10 -1 -1 0 Transfer System alpha A000201T02 Trench 2/ Pneumatic Removable 10 8 -2 5 Transfer System beta A000201WOl- Walls 1-4 Removable 89 7 0 2 W04 alpha A000201WO1- Walls 1-4 Removable 89 17 -2 5 W04 beta A000201FO1 Rm. SW 2F-2E Tritium 9 All tritium smears were less than the A000201SOl Floor, Walls, Structures smears 1 instrument MDA (51 - 66 dpm/1OO cm2 )

A000201S02 1 A000201S03 1 A000201S04 3 A00020IT01 2 A000201T02 2 A000201WOl-W04 9 8.5 Rooms SW2C and SW2D (Package A0003)

Historical Summaiy Room 2D is the walk-in cooler for the Nuclear Research Lab. This room was used primarily for storage. The room originally contained a 1.2 Curie sealed Cs-137 Shepard calibration source. The Shepard calibrator was moved in 1997 to the research wing of the hospital. The room was then used to store samples requiring refrigeration.

Room 2C is the nuclear research office and lab area. This room/area was used for gas chromatography and sample preparation. Two hoods are located in this area.

The hood located on the north side filters and discharges back into the room. The hood located on the south side discharges on the roof of the hospital. In 1993 the pneumatic transfer system exhaust was routed into the south hood. The sink in the hood of this area was used for disposal of liquid effluents to the sanitary sewer system.

Package Description Measurements of the floors, walls, one drain, the walk in cooler, lab hoods, cabinets, and structures within the room were surveyed. Sinks were surveyed as part of the structure (the counter top). One drain was surveyed as part of this package. The lab hoods were surveyed up to the point of filtration. The ventilation system beyond this point was surveyed in package DOOOI.

Data Summary Summaries of the data collected are presented in Table 8.5. The south hood (structure 02S01) has activity, which exceeds the calculated DCGL. This hood discharges to the ventilation system marked EF 11; the ventilation system was surveyed as V02 in the ventilation and drain system package (DO001). All other Revision 0 52 of 69

data are generally low in activity.

Table 8.5 Rooms SW2C and SW2D (Packa e A0003)

Location Description Measurement Number Maximum Mean Std Dev Type dpm/100 cm dpm/100 cm2 dpmthO0 cmz A000301DOl Drain in O/S Walk-In Total beta 1 268 268 Cooler Pit contamination A000301FOI Walk In Cooler Floor Total beta 8 98 -55 169 contamination A000301SOI West Pit Surrounding Total beta 30 779 380 269 Walk-In Cooler contamination A000301WOI- Walk In Cooler Wall 14 Total beta 24 406 80 165 W04 contamination A000302F01 Rm.2C Tile Floor Total beta 28 737 172 191 contamination A000302S01 Rnm.2C/ Lab Hood Total beta 5 72211 14481 32272 contamination A000302S02 Rm. 2D Lab Hood Total beta 5 602 164 311 contamination _ _

A000302S03 Rm.2C / Lab Cabinets Total beta 5 124 -60 145 contamination A000302S04 Rm. 2D / Lab Cabinets Total beta 10 408 -9 208 contamination_

A000302S05 Rm.2D / Lab Cabinets Total beta 5 211 23 160 contamination A000302W01- Rooms 2C&D / Walls 14 Total beta 34 2227 241 484 W04 contamination A000301FOI Walk In Cooler Floor Total alpha 8 8 -7 9 contamination A000301WOI- Walk In Cooler Wall 14 Total alpha 24 21 -6 12 W04 contamination A000302F01 Rnt2C Tile Floor Total alpha 27 46 5 19 contamination A000302S01 Pit Surrounding Walk-In Total alpha 3 34 13 19 Cooler contamination A000302S02 Rim 2D Lab Hood Total alpha 3 8 0 7 contamination A000302S03 Rm.2C / Lab Cabinets Total alpha 3 21 4 15 contamination A000302S04 Rim 2D / Lab Cabinets Total alpha 5 8 -4 13 contamination A000302S05 Rm.2D / Lab Cabinets Total alpha 3 34 4 26 contamination A000302W01- Rooms 2C&D / Walls 1-4 Total alpha 33 8 -S 11 W04 contamination A000301FOl Walk In Cooler Floor Removable 8 -1 -1 0 alpha A000301FOl Walk In Cooler Floor Removable 8 4 -5 5 beta A000301WOI Walk In Cooler Wall 1-4 Removable 24 3 -1 1 W04 alpha A000301WOI- Walk In Cooler Wall 1-4 Removable 24 8 -3 5 W04 beta Revision 0 53 of 69

Location Description Measurement Number Maximum Mean Std Dev Type _dpm/100 cmz dpm/100 cm dpm/100 cm A000302FOI Rmn2C Tile Floor Removable 24 7 0 2 alpha A000302FOI Rm.2C Tile Floor Removable 24 8 -3 5 beta _

A000302SOI Rm. 2C/ Lab Hood Removable 5 -1 -1 0 alpha A000302SO1 Rm. 2C/ Lab Hood Removable 5 1081 217 483 beta A000302S02 Rim 2D Lab Hood Removable 5 3 0 2 alpha A000302S02 Rm 2D Lab Hood Removable 5 16 5 8 beta A000302W01- Rooms 2C&D / Walls 1-4 Removable 33 3 -1 1 W04 alpha A000302W01- Rooms 2C&D / Walls 1-4 Removable 33 8 -4 4 W04 beta I A000301FO1 Tritium 1 All tritium smears were less than the A000301WOl- smears instrument MDA (51 - 61 dpm/100 cm2)

W04 4 A000302F02 3 A000302SOI-S03 5 A000302W01-W04 _ 4 8.6 Rooms SW2E and SW2F (Package A0004)

Historical Sumrnai Room SW2E was a laboratory in support of research. This area housed two vacuum systems in support of hot atom chemistry. In the northwest is a committed fume hood (labeled EFIO) that exhausts to the roof on the 12*' floor.

From 1992 to 1996 this hood was used for radiochemical neutron activation analysis. The sink on the southeast side was intermittently used to dispose of radioactive liquids to the sanitary sewer system. Glassware was cleaned in this area.

Room SW2F is a vault room used primarily for storage. This room was also used for decay and storage of radioactive waste from the medical research facility. This room housed the molybdenum generators for the hospital until 1993.

Package Description Measurements of the floors, walls, source room wall penetrations, floor storage penetrations, and the structures within the room were surveyed. Sinks were surveyed as part of the structure (the counter top). The fume hood to the point of filtration was surveyed as structure 02S01. The ventilation system beyond this point was surveyed in package DOOO. Drains were surveyed as part of the systems package (DOOOl).

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Data Summary Summaries of the data collected are presented in Table 8.6. The data show elevated direct beta measurements on the source storage area floor. Data reported are data collected after removal of radioactive materials from the area.

Background measurements with the probe shielded with a plexiglass shield were taken at each survey measurement point. Each of these background measurements was subtracted from the corresponding survey point measurement.

One tritium smear had measurable activity, but it is noted to be insignificant when compared to the tritium screening DCGL in the Federal Register of 1.2 E8 dpmn/100 cm2. Floor and wall penetrations used to store radioactive materials survey results are included in this package. The well covers could not be removed on two of the floor wells; the other 8 floor penetrations were surveyed but due to the measurement geometry, the measurements are recorded in the survey package as "for information only."

Table 8.6 Rooms SW2E and SW2F Results (Package A0004)

Location Description Measurement Number Maximum Mean Std Dev Type dpml100 cm dpmllOO cm' dpmllOO cm2 A000401FO1 Source Storage Total beta 13 15682 2071 4095 Rm.Concrete Floor contamination A000401POI Source Room Wall Total beta 64 8748 226 1089 Penetrations 1-64 contamination A0004OWO1- Rm.SW 2F/ SourceStor. Total beta 22 669 332 147 W04. Rm. Walls 1-4 contamination A000402FOI RmnSW 2E/ Floor Total beta 13 262 -6 146 contamination A000402SOI Rm.SW2E Lab Hood Total beta 5 94 -27 70 contamination A000402S02 RnLSW 2E/ Cabinet on Total beta 5 178 -6 149 N.Wall contamination A000402S03 RmnSW 2E/ Total beta 10 157 -136 183 Cabinet/Sinks on S.Wall contamination A000402WO1- Rm. SW 2E / Walls 1-4 Total beta 30 703 207 289 W04 contamination A000401FOI Source Storage Total alpha 12 29 5 15 Rm.Concrete Floor contamination A000401WOI- RmSW 2F/ SourceStor. Total alpha 22 55 15 19 W04 Rm. Walls 1-4 contamination A000402FOI Rm.SW 2E/ Floor Total alpha 13 4 -13 10 contamination A000402SOI RnmSW2E Lab Hood Total alpha 3 42 13 26 contamination A000402S02 Rm.SW 2E/ Cabinet on Total alpha 3 17 13 7 N.Wall contamination A000402S03 RnLSW 2E/ Total alpha 4 4 -5 6 Cabinet/Sinks on S.Wall contamination A000402WO1- Rim SW 2E / Walls 1-4 Total alpha 30 17 -8 11 W04 contamination Revision 0 55 of 69

Location Description Measurement Number Maximum Mean Std Dev Type dpm/100 cm2 dpml100 cm2 dpmJx100 cm A000401FO1 Source Storage Removable 12 3 0 1 Rm.Concrete Floor alpha A000401FOl Source Storage Removable 12 255 56 79 RmmConcrete Floor beta A000401PO1 Source Room Wall Removable 64 6.9 -1 1.4 Penetrations 1-64 alpha A000401PO1 Source Room Wall Removable 64 162 -2 21

_ Penetrations 1-64 beta _

A000401WOl- Rm.SW 2F/ SourceStor. Removable 22 4 0 1 W04 Rm. Walls 14 alpha A000401W01- Rm.SW 2F/ SourceStor. Removable 22 10 -1 5 W04 Rm Walls 1-4 beta A000402F01 RmSW 2E/ Floor Removable 13 3 0 1 alpha A000402F01 Rm.SW 2E/ Floor Removable 13 22 4 9 beta A000402S01 RmSW2E Lab Hood Removable 5 -1 -1 0 alpha A000402S01 Rm.SW2E Lab Hood Removable 5 14 0 9 beta A000402S02 RnmSW 2E/ Cabinet on Removable 5 -1 -1 0 N.Wall alpha A000402S02 Rm.SW 2E/ Cabinet on Removable 5 6 -1 5 N.Wall beta A000402S03 RmnSW 2EI Removable 10 3 1 2 Cabinet/Sinks on S.Wall alpha A000402S03 Rm.SW 2E/ Removable 10 6 -2 5 Cabinet/Sinks on S.Wall beta A000402W01- Rm SW 2E / Walls 14 Removable 30 3 0 2 W04 alpha _

A000402W01- Rm SW 2E / Walls 1-4 Removable 30 10 0 5 W04 beta A000401FOI Tritium 2 792 dpm/100 cmn A000401W01- smears All other tritium smears were less than the W04 4 instrument MDA (51 - 61 dpmllO0 cm2 )

A000402F01 2 A000402S01-S03 3 A000402W01-W04 _ 4 Revision 0 56 of 69

8.7 Reactor Room Access Areas (Package BOOO1)

Package Description Measurements of the access area floors, walls, and structures within the room were surveyed.

Data Summary Summaries of the data collected are presented in Table 8.7. The data are all low in activity (many below the MDA) and no elevated measurements were noted.

Data collected on the tile floor in room SWIA (the men's bathroom) was rejected during final data review due to low counts. The final data review was performed after demobilizing from the site and therefore additional measurements were not obtained. The floor should be resurveyed during the reactor decontamination and decommissioning.

Table 8.7 Reactor Room Access Areas Results (Package BOOi Location Description Measurement Number Maximum Mean Std Dev Type dpm/100 cm2 dpm/lOO cmz dpm/100 cmi BOOOIOIFO1 Access O/S Rx/Tile Floor Total beta 38 404 -3 188 contamination BOOOIOIWOI- Rm.SW I &SW2/Walls Total beta 66 1313 251 493 W04 1-4 contamination B000102FOI Rm SWIA / Tile Floor Total beta 16 -170 -751 308 contamination data rejected data rejected data rejected B000102WOl- Rm. SW IA Wall(NW Total beta 32 1767 931 532 W04 corner) contamination B000103FOI So.East Stair Well/Floor Total beta 12 361 206 104 contamination B000103SOI Pkg.BOOOl/Structure/ Total beta 15 346 178 97 East Stairs contamination B000103WO1- East StairWell Walls 1-4 Total beta 47 361 138 114 W04 contamination BOOOIOIFOI Access O/S Rx/Tile Floor Total alpha 4 17 -11 19 contamination_

BOOOlOIWOI- RrmSW 1 & SW 2/ Walls Total alpha 7 -8 -14 7 W04 1-4 contamination B000102FO1 Rm SWIA / Tile Floor Total alpha 2 -8 -15 9 contamination B000102WO1- Rm. SW IA Wall(NW Total alpha 3 79 42 38 W04 corner) contamination B000103FOI So.East Stair Well/Floor Total alpha 1 54 54 not applicable contanation B000103WOl- East StairWell Walls 1-4 Total alpha 5 17 2 14 W04 contamination BOOOIOlFO1 Access O/S Rx/Tile Floor Removable 38 7 0 2 alpha BOOOlOlFOI Access O/S Rx/Tile Floor Removable 38 12 -2 5

__ beta BOOOIOIWOI- RnLSW I & SW 2/ Walls Removable 66 3 -1 1 W04 1-4 alpha _ _ I I _

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Location Description Measurement Number Maximum Mean Std Dev Type dpmflOO cm 2 dpmflOO cm2 dpm/th0 cne BOOOIO1WOl- Rm.SW 1 & SW 2/ Walls Removable 66 8 -4 5 W04 1-4 beta B000102FOl Rm SWIA / Tile Floor Removable 16 3 0 2 alpha B000102FOI Rm SWIA I Tile Floor Removable 16 13 0 6 beta B000102WOI- Rm SW IA Wall(NW Removable 32 3 0 1 W04 corner) alpha B000102WOl- Rm. SW IA Wall(NW Removable 32 9 -3 5 W04 corner) beta B000103FOI So.East Stair Well/Floor Removable 12 3 1 2 alpha B000103FOI So.East Stair Well/Floor Removable 12 12 -4 6 beta B000103SOI Pkg.BOOOI/Structure/ Removable 15 3 -1 1 East Stairs alpha B000103SOI Pkg.BOOO1/Structure/ Removable 15 8 -3 5 East Stairs beta B000103WOI- East Stairwell Walls 14 Removable 47 3 0 2 W04 alpha B000103WOl- East Stairwell Walls 14 Removable 47 38 -2 8 W04 beta BOOOIOIFOI Tritium 4 All tritiumsmears were less than the BOOOIOIWOI- smears Instrument MDA (50 - 59 dpm/100 cm1)

W04 7 B000102FOI 2 B000102WOI-W04 3 B000103FOI 1 B000103WOI-W04 _ 5 8.8 Reactor Controlled Area Overhead Areas and Ceilings (Package C0001)

Package Description Measurements of the walls above 2 meters and the ceilings were surveyed as "Impacted Class 3."

Data Summary Summaries of the data collected are presented in Table 8.8. The data are all low in activity (many below the MDA), and no elevated measurements were noted.

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Table 8.8 Reactor Controlled Area Overhead Areas and Ceilings (Packa ze C0001)

Location Description Measurement Number Maximum Mean Std Dev Type dpmJ100 cm2 dpm/100 cm2 dpm/100 cm2 C000101OHI Overhead area and Total beta 36 783 173 285 Ceilings contamination_

COOOlOlOHl Overhead area and Total alpha 6 29 -2 20 Ceilings contamination COOOIOlOHI Overhead area and Removable 36 11 0 2 Ceilings alpha COOOlO1OHI Overhead area and Removable 36 13 -3 5 Ceilings beta COQOlOIOHI Overhead area and Tritium 6 All tritium smears were less than the Ceilings smears instrument MDA (53 dpm10O cm 2 )

8.9 Ventilation and Drain Systems (Package D0001)

Historical Summarv Radioactive materials were dumped down the drain system at levels that were acceptable for effluent release. The lab hoods numbered EFIO (in room SW2E surveyed in package A0004) and EFi 1 (the southern hood shown in Figure 2.2 surveyed in package A0003) were used for radioactive material experiments.

These two hoods are dedicated hoods for radioactive materials and exhaust to the 12th floor roof. The ventilation systems after the hood filtration were surveyed in this package as 01 VOI (EFI0) and 01V02 (EFI 1). The vents can be accessed easily in four locations: (1) the entry point, (2) the 1st floor damper area, (3) the 4h floor, and (4) the doghouse on the roof.

Package Description Measurements of the ventilation systems were obtained at each accessible location, after the fume hood filtration point.

Measurements of the drains were made by removing the drain trap and surveying up to the nearest obstruction using a pipe detector. Surveys of drains marked OlD01, OD02, OID03, OID04, OID05, OID06, 01D07, and OlD1O were obtained. Drains marked OID08 and OD09 were not surveyed. Drain OID08 immediately angled so that the pipe detector would not fit beyond one inch. Drain 01D09 was behind the hood and could not be accessed.

Data Summarx Summaries of the data collected are presented in Table 8.3. Measurements in the lab hood drain showed activity exceeding the DCGL, and two sink drains are noted to have activity measurement greater than 25% of the preliminary guideline.

The lab hood drain is the drain from the lab hood in package A0003 that showed activity exceeding the DCGL. The ventilation systems did not show elevated measurements.

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Table 8.9 Ventilation and Drain Systems (Package D0001)

Location Description Measurement Number Maximum Mean Std Dev I.

I , Type dpmtlOO cm& dpm/100 cm 2 dpmtlIOO c DOOOIOIDO1 Floor Total beta 2 147 -84 326 Drain/Rm.SW2F/Source contamination Stor.Rmr DOOOIOID02 Rm.SW 2B Total beta 1 263 263 not applicable contamination_

DOOOIOID03 Lab Hood Drain D03/ Total beta 1 1554491 1554491 not applicable RmnSW 2D contamination DOOOIOID04 Sink Drain/ Rxn.SW 2D Total beta 1 9070 9070 not applicable contamination DOOOlOID05 Sink Drain/Rm. SW Total beta 1 2017 2017 not applicable 2C/South contamination DOOOlOlD06 Sink Drain/ Rm. SW Total beta 1 -351 -351 not applicable 2C/North contamination DOOOlOlD07 Sink Drain/Rm.SW 2E/ Total beta 1 -684 -684 not applicable East contamination D000101DIO Sink Drain / Rm. SW2A Total beta 1 298 298 not applicable contamination DOOOIOIVOI Ventilation Total beta 8 253 -5 179 contamination DOOOIOIV02 Ventilation Total beta 8 465 119 221 contamination DOOOIOIDO1 Floor Removable 10 3 0 2 Drain/Rm.SW2F/Source alpha Stor.Rm _

DOOOlOlDOl Floor Removable 10 385 44 122 DrainlRm.SW2F/Source beta Stor.Rm DOOOlOlPOI- POI ... P08 Pneumatic Removable 8 3 -1 1 P08 Transfer System alpha Openings DOOOIOIPOI- POI P08 Pneumatic Removable 8 228 64 85 P08 Transfer System beta Openings DOOOIPOlP9- P09 & Pl0, Reactor Removable 2 2 3 1 P 10 Coolant System alpha DOOOIOIPO9- P09 & PlO, Reactor Removable 2 0 -2 3 P1O Coolant System beta DOOOI01 VOI Ventilation Removable 8 3 1 2 alpha DOOO 1OWVOI Ventilation Removable 8 6 1 4 beta DOOOIOIV02 Ventilation Removable 8 3 0 1 alpha DOOOIOIV02 Ventilation Removable 8 10 2 6 beta Revision 0 60 of 69

8.10 Calculation of Derived Concentration Guideline Levels In order to demonstrate compliance with the 25 mrem/yr criteria from 10 CFR 20 for release for unrestricted use, site specific derived concentration guideline values are calculated for building surfaces and open land areas. Since none of the soil samples showed measurable licensed radioactivity, and remediation of land areas is not expected, a DCGL for open land areas was not calculated. The site-specific DCGL for building surfaces was calculated based on the relative fraction of each radionuclide detected in the resin sample. Radionuclide specific guideline values relate activity concentrations in terms of dpm/100 cm2 to 25 mrem/yr. A gross activity DCGL was calculated for the mixture of radionuclides using the screening values published in the Federal Register [FR Vol. 63, No. 222, 11/18/98] and values generated using the NRC DandD screening code (referenced in FR Vol. 63 No. 222) when there was no published value for the radionuclide. The screening values for DCGL were based on a conservative set of assumptions. The Federal Register notes that "Sites with building surface contamination levels below those [screening values] listed would be deemed acceptable for release for unrestricted use in accordance with the dose criteria in 10 CFR 20.1402, provided that residual radioactivity has been reduced to 'as low as reasonably achievable' (ALARA) levels." If the screening DCGL values prove to be unacceptably low, a site-specific dose model can be developed and a dose assessment performed to calculate more realistic radionuclide specific guideline values. However, based on the mixture of nuclides identified in the resin sample and the resulting gross DCGL, a site-specific dose assessment is not anticipated to be necessary.

The gross DCGL calculation for building surfaces is provided in Attachment 2 to this report. Attachment 2 also includes the DandD computer runs that were generated. Table 8.10 shows the radionuclide specific screening levels and the resulting DCGL of 27,000 dpm/100 cm2 for the resin mixture. If a lower dose criterion is used during decommissioning, then the surface DCGL will decrease proportionally. For example, if an annual dose equivalent of 15 mrem/yr is used for decommissioning, the DCGL reduces to 16,000 dpm/lOOcm 2 .

Table 8.10 A.J. Blotck, (Screening Values and Gross Activiiy DCGL for Building Surfaces Radionuclide Source* Surface DCGL dpmn/100cm2 (Equivalent to

_ 25 mrenlyr)

C-14 Fed. Reg. 3.70E+06 Co-57 DandD 2.12E+05 Co-60 Fed. Reg. 7.10E+03 Cs-137 Fed. Reg. 2.80E+04 Eu-152 DandD 1.27E+04 H-3 Fed. Reg. 1.20E+08 Pb-210 DandD 5.46E+02 Rtevision 0 61 of 69

Pu-241 DandD 1.42E+03 Th-230 DandD 3.35E+02 Zn-65 DandD 4.81 E+04 Calculated Gross Activity DCGL 2.70E+04

Note: Fed. Reg. = Federal Register, DandD is the NRC DandD code 8.11 Activation Analysis Calculations APPENDIX C contains the Activation Analysis Report. An estimate of activities was made for a conservative set of assumptions. Europium isotopes are frequently seen in activated concrete from impurities in the materials Eu-152 and was identified in the resin sample. The report contained in APPENDIX C does not list europium isotopes. Although soil activity is predicted, soil sampling and analysis provides the best information on the radionuclide concentrations in soil.

The analysis of 34 samples taken during soil boring did not show any measurable radioactivity by gamma spectral analysis. The soil from the borings was only analyzed by gamma spectroscopy. Many of the radionuclides listed for soil in APPENDIX C are radionuclides that cannot be detected by gamma spectroscopy.

Therefore, analysis of a few samples during decommissioning for these radionuclides is suggested. NUREG/CR-3474, "Long-Lived Activation Products in Reactor Materials" provides a comparison of calculated activation activities and measured activities. The measured activities (through component sampling and analysis) are consistently higher than calculations predict sometimes by as much as a factor of 21. During decommissioning sample analysis may be very different from the calculation estimate.

8.12 Soil Borings and Installation of Test Wells Soil Borings An investigation was conducted to evaluate whether or not there was historical soil contamination around or underneath the reactor vessel resulting from neutron activation or tank leakage. During the HSA, discussions with reactor personnel indicated that data on make-up water required for the pool during the operation of the reactor indicated that there was no tank leakage. Three vertical soil borings were drilled at locations adjacent to the reactor vessel inside the building and one angle boring was drilled from the outside of the building to access soil from underneath the vessel. Soil samples were taken and analyzed for stratigraphy and gamma-emitting radionuclide concentrations using the on site gamma spectroscopy system.

Three vertical borings (J13-1, IB-2, and 1B-3) were drilled around the reactor to depths of 36 feet (approximately 10 feet below the bottom of the reactor). The drilling method was direct-push using a Geoprobe 6610DT rig and MacroCore sampler. Initial drilling through the concrete floor at each boring location required the use of a GH60 hammer and carbide tip bit. This resulted in a 4-inch diameter hole with minimal dust/debris generated. After the drill bit was Revision 0 62 of 69

advanced through the concrete floor, the remainder of drilling involved hydraulic push of the sampler through the soil. The sample tube was advanced 4 feet at a time, and a continuous sample throughout the soil column was obtained. The diameter of soil boring was approximately 2 1/2-inches O.D.

The continuous sample cores were logged for geological information and then split approximately every 2 feet to obtain composite samples for radiological parameters. Each sample was initially screened for radioactivity using a Ludlum Model 177 Frisker with a GM Pancake Probe. The samples were then processed in accordance with Section 5.3 of Duratek Procedure REDS-CHR-107, Subsurface Soil Sampling.

After sampling, the holes were grouted using bentonite and a concrete cap at the surface. Diesel exhaust from the Geoprobe was vented to the outside via the vent fan in the reactor room. Air monitoring was performed for oxygen, carbon monoxide, and Lower Explosive Limit (LEL). This air monitoring was performed at the source of the exhaust, general areas of the reactor room, and at the exhaust of the reactor-cooling pit.

The angle boring (EB-4) was drilled from a point outside the reactor building at a 530 angle to a depth of 88 feet. This boring was used to obtain soil samples below the reactor. Procedures for obtaining this sample were basically the same as those mentioned above for vertical borings. Samples for analysis were taken as follows:

one composite sample for gamma spectral analysis was taken every 10 feet for the first 60 feet then every 4 feet thereafter until reaching approximately 5 feet beyond the far side of the reactor tank.

The soil boring logs with a description of the stratigraphy and results of the radiological field screening are presented in APPENDIX D to this report.

Radionuclides other than naturally occurring radionuclides were not detected by analysis of the soil samples by gamma spectroscopy. A summary of the gamma spectral analysis results is contained in Attachment 9 to this report. This supports the operational history data that there was no tank leakage, and therefore no contamination of the soils surrounding the reactor vessel at the sample points monitored.

Groundwater Flow Study An investigation was conducted to evaluate whether or not there is a measurable impact by the reactor on the groundwater directly beneath the facility. To accomplish this goal, three soil borings were drilled and installed with monitoring wells. Groundwater samples were subsequently taken and groundwater flow direction was determined.

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Three soil borings (EB-l, EB-2 and EB-3) were drilled outside the VA Medical Center facility at preselected locations (Figure 1 of APPENDIX D). The locations were cleared for the presence of utilities prior to drilling. The borings were advanced until a significant geological confining unit (glacial till) was encountered using 41/4-inch I.D. hollow stem augers. The total depths of the borings were 131 feet for EB-1, 110 feet for EB-2, and 100 feet for EB-3. Soil core samples were obtained using a split-spoon sampler. Samples were obtained at 5-foot intervals for the first 50 feet of drilling and at 10-foot intervals at depths greater than 50 feet below ground surface. The sampler was decontaminated between samples.

After the samples were taken from the split-spoon sampler they were analyzed for stratigraphy by a geologist and were screened by a health physicist for radiological parameters. Certain soil samples were composited in the field for subsequent gamma spectral analyses. The soil boring logs with a description of the stratigraphy and results of the radiological field screening are presented in APPENDIX D.

After each boring was completed and samples taken, a 2-inch diameter PVC monitoring well was installed. Each well was equipped with a 10 -foot long PVC screen. Filter pack sand was placed around the screen and a bentonite seal was placed directly above the sand. Above the bentonite was placed Portland cement grout to the ground surface. Each well was completed using a flush-mount manhole and lockable cap. Monitoring well construction details are shown in APPENDIX D. Auger cuttings were placed in one cubic yard containers and moved off-site for disposal.

Each well was installed. The groundwater gradient was determined by measuring the depth of the groundwater in each well and the distance between the wells.

Stratigraphs The site is covered by approximately 3 feet of fill material. The fill material consists of firm, moist, light brown silty clay sediments with intermixed fine sand and rust stains. The fill material is underlain by Peoria Loess depositions. Peoria Loess depositions consist mostly of medium- stiff, moist, low plasticity silty clay with iron and calcium nodules. The thickness of Peoria Loess depositions is 34 to 34.5 feet.

Peoria Loess is underlain by Loveland Loess depositions. Loveland Loess depositions consist mostly of medium-stiff, moist, medium-plastic, reddish-brown silty clay with iron and manganese nodules. The thickness of these depositions were 97 feet, 74.5 feet, and 65.5 feet at locations EB-1, EB-2 and EB-3 respectively.

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Loveland Loess is underlain by glacial till that consisted of very stiff, moist, medium-plastic, gray, silty clay with some gravel.

Groundwater Flow Direction Relative elevations of tops of groundwater monitoring well casings (TOCs) were obtained from field survey. Relative elevations of water table were determined on the basis of relative elevations of TOCs and water levels measured from TOCs after monitoring well development. Groundwater is generally encountered in the Loess with a flow to the westward direction. The hydraulic gradient is approximately 0.01 ftlt.

Relative elevations of water table and direction of groundwater flow are presented in Figure 1 of APPENDIX D.

8.13 Asbestos and Lead Sampling Fifteen field screen chemical tests and three scraping samples were taken to evaluate for the presence of lead in paint. Eight samples were taken to evaluate the presence of asbestos. Asbestos samples showed asbestos in the lab counters, fume hood panels, floor tiles, pipe insulation, and in the floor tile mastic adhesive.

Paint samples from the three paint locations (beige paint from dumbwaiter frame, beige paint from the south stairwell door frame, and beige paint from the south east corner column) all showed measurable lead ranging from 0.66 to 1.068 %

lead by weight. Two of these samples exceeded the limit of 0.5% lead by weight established in the Lead-BasedPaintPoisoningPreventionAct of 1971, as amended by the Housing and Community Development Act of 1987. Both of the positive lead samples were taken on painted metal and typical of older metal primers. Results are provided in Attachment 10.

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9.0 DATA QUALITY ASSESSMENT, QUALITY ASSURANCE AND QUALITY CONTROL Once all the surveys were complete, the data was assessed and evaluated to ensure that all the requirements of this characterization plan and the QAPP were met and the data are acceptable.

Duratek's Quality Assurance/Quality Control Programs ensure that all quality and regulatory requirements are satisfied. All activities affecting quality were controlled by procedures and plans. The plans and procedures included the following Quality Control measures as an integral part of the survey process.

9.1 Selection of Personnel Project management and supervisory personnel were required to have extensive experience with Duratek procedures and be familiar with the requirements of MARSSIM and the Survey and Sampling Plan. Management had prior experience with the radionuclide(s) of concern and a working knowledge of the instruments used to detect the radionuclides on site. Project management and supervision were required to maintain OSHA safety qualifications as safety is a primary concern of Duratek.

Duratek selected supervisory personnel to direct the survey based upon their experience and familiarity with the survey procedures and processes. Likewise, Health Physics technicians who will perform the surveys were selected based upon their qualifications and experience.

9.2 Training All project personnel received site-specific training to identify the specific hazards present in the work and survey areas. Training included a briefing and review of the plans and Duratek procedures.

During site orientation and training, survey personnel became familiar with site emergency procedures.

9.3 Written Procedures All survey tasks essential to survey data quality were controlled by procedures and the written plans.

9.4 Instrumentation Selection, Calibration and Operation Duratek selected instruments proven to reliably detect the radionuclides present at the facility. Instruments were calibrated by Duratek or qualified vendors under approved procedures using calibration sources traceable to the National Institute of Standards and Technology (NIST).

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All instruments and detectors were inspected and source checked daily when in use to verify proper operation. Control charts and/or source check criteria were established at the beginning of the project for reference.

Procedures for calibration, maintenance, accountability, operation, and quality control of radiation detection instruments implement the guidelines established in American National Standard Institute (ANSI) standard ANSI N323-1978 and ANSI N42.17A-1989.

9.5 Survey Documentation Survey packages were the primary method of controlling and tracking the hard copy records of survey results. Records of surveys were documented and maintained in the survey package for each area according to Duratek procedures.

Each survey measurement was identified by the date, technician, instrument type and serial number, detector type and serial number, location code, type of measurement, mode of instrument operation, and Quality Control (QC) sample number as applicable.

9.6 Chain of Custody Procedures establish responsibility for the custody of samples from the time of collection until results are obtained. Samples shipped off site for analysis were accompanied by a chain-of-custody record to track each sample.

9.7 Records Management Generation, handling and storage of survey data packages was controlled by an approved procedure.

9.8 Duplicate Review of Survey Results The survey package and survey data from each area were reviewed by two people to verify all documentation is complete and accurate. This included the surveyor and either the project manager or his designee.

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10.0

SUMMARY

AND CONCLUSIONS The results of this comprehensive characterization effort show the A.J. Blotcky reactor facility to be relatively free of radiological contamination. Over 3,100 measurements and samples were obtained to characterize the facility. The building surfaces (walls, floors, and overheads) characterization showed no measurements exceeding the calculated DCGL of 27,000 dpm/l 00cm2 . The only areas where contamination is present in elevated levels above the calculated DCGL of 27,000 dpm/I00 cm2 are:

1) Reactor pool components and the reactor vessel

2) The south lab hood in room SW2D, and

3) Drain 3 in the south lab hood of room SW2D.

Measurements taken of outside areas and soils did not show activity concentrations above the detection levels required for this survey. Soil borings were made by HDR Engineering to evaluate the groundwater flow and direction, and to analyze the soil adjacent to the reactor core for gamma emitting radionuclides. Three test wells were installed to depths between 100 and 131 feet. Four additional borings (without installation of wells) were made to depths of 36 feet (approximately 10 feet below the bottom of the reactor).

Eighty-eight soil samples for various depths from all seven borings were analyzed by gamma spectroscopy. None of the samples showed activity other than naturally occurring radionuclides. In addition to the soil borings, 30 surface soil and 30 subsurface soil samples were obtained during the characterization. None of the samples showed activity other than naturally occurring radionuclides.

Lead paint above the standard was detected in two samples of paint taken from metal surfaces (door frarne and column). Asbestos was detected in lab counters, fume hood panels, floor tiles, pipe insulation, and in the floor tile mastic adhesive.

A sample of resin was obtained from the reactor coolant demineralizer and sent to Eberline Services laboratory in Oak Ridge, Tennessee, for analysis of 10 CFR part 61 radionuclides, and other radionuclides typical of reactor activation and fission products.

The sample analysis was used to calculate DCGL for the beta surface contamination levels for site decommissioning. The DCGL was developed to meet the intent of Subpart E, 10 CFR 20.1402, RadiologicalCriteriaforUnrestrictedUse. The DCGL for gross activity measurements equivalent to the 25 mrem annual total effective dose equivalent was calculated to be 27,000 dpm/100 cm2 for building surfaces and structures.

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11.0 REFERENCES

11.1 NUREG-1575, Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM), August 2000.

11.2 NUREG-1727, MNSS Decommissioning Standard Review Plan September 2000 11.3 Draft NUREG- 1549, Using Decision Methods for Dose Assessment to Comply with Radiological Criteria for License Termination.

11.4 NUREG-1501, Background as a Residual Radioactivity Criterionfor Decommissioning, Draft Report, August 1994.

11.5 Federal Register, Volume 63, No. 222, Wednesday, November 18, 1998, pages 64132-64134, NRC Supplemental Information on the Implementation of the Final Rule on RadiologicalCriteriafor License Termination.

11.6 Federal Register, Volume 64, No. 234, Tuesday, December 7, 1999, pages 68395-68396, NRC Supplemental Information on the Implementation of the FinalRule on Radiological Criteriafor License Termination.

11.7 Federal Register, Volume 65, No. 114, Tuesday, June 13, 2000, page 37186, NRC Use of Screening Values to Demonstrate Compliance With the FinalRule on RadiologicalCriteriaforLicense Termination.

11.8 US NRC, Regulatory Guide 1.86, Termination of Operating Licenses for Nuclear Reactor, June 1974.

11.9 10 CFR20, Standards for Protection Against Radiation.

11.10 Safety Analysis Report, Alan J. Blotcky Reactor Facility, Omaha, NE.

11.11 Quality Assurance Project Plan for the Alan J. Blotcky Reactor Facility Characterization.

11.12 Health and Safety Plan for the Alan J. Blotcky Reactor Facility Characterization.

11.13 Project Milestones and Management Plan for the Alan J. Blotcky Reactor Facility Characterization.

11.14 Lead-BasedPaintPoisoningPreventionAct of 1971, as amended by the Housing and Community Development Act of 1987.

11.15 US NRC, DandD Code Version 2.1 (available on the internet at www.serversolutions.com/deommsec/model.htm).

11.16 NUREG/CR-3474, Long Lived Activation Products in ReactorMaterials, August 1984.

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Lab sample client Sample Receipt Analysis Batch A iCuTUMAReport ID Type ID flale Date Dote IDAn ehdReutC P D Units 02-11141-0 LCS KNOWN 11/26/0 o000 11/2/200 121600 02-111 Arnwlclum-241 EMI.Aan-01 Modifie 5.84E+00 1.69E-01 P~

02-111141401 LCS SPIKE 11/2=0020000 11/261200 12162002 02-11141 Ame.ic~im-241 EML Am-01 Modified 6.03E+00 1.06E+O0 1.13E+00 1.09E-01 pCV9 02-11141-2 MBI. BLANK 11/r26/2 00:00 IIi81200 12W6/00 02-11141 Ame41c~im-241 EML Am-01 Modified 2.41E-02 4.78E-02 4.78E-02 i.04E-01 pClwg 02-111141403 DUP VA-02-0176 11/25/02 12:00 11I20/2002 1216/00 02-11`141 Amertclwn-241 EMLAm-01 Modified 3.41E-02 4.70E402 4.71E-02 8.48E-02 PCi~g 02-11141404 00 VA-02-0176 11125/02 12:00 11/20r2002 112062002 02-11141 Affkmelwn241 EML Am-01 Modified 1.36E-02 4.10E-02 4.A0E-02 1.03-01 PCVig 02.11I141-0 LCS KNOYW4 11/26/00:00 11/26/2002 12S8100 02-11141 Curkwli243/244 EMLAm-01 Modified 6,735+00 9.42E-02 pCI/u 02-1114141 LCS SPIKE 111J261000:00 11/26/002 12/6/202 02-11141 Curkumn-2431244 EML Am-0l Modified 6.21E400 1.09E4-00 1.25E*00 1.3150 pC~g 02-1114142 MOL SLANK 112/20.1 m o 11/iu00 1216202 02%141 Curium-2431244 EMLAni-01 Modified -1.13E402 1.03E-02 1.03E542 .9.32E-02 pCI/g 02.11141403 DUP VA-024176 11/25102 12:00 11/2/200 1216202 02-11141 Curlum-2431244 EML Am-0l Modified 9.60E-03 2.33E542 2.33E-02 5.29E-02 PCV9g 02-11141-04 DO VA-02-0176 I11/26102 12:00 11/r2/200 1216200 02-11141 Cturmu-243/244 EMVL Am-0l Modified 3.70E-02 4.895402 4,905402 7.2-2pCI/

02-1114141 LCS KNOWN 121000 MA= 11/2/200 12/1/02 02-11141 Curbon-14 EPA 620.0Modile 5.30E#02 2.91E+01 PCI/g 02-11141-0 ICS SPIKE 11/22002 00:00 11/26/200 12/1212002 02-11141 Carbon-14 EPA 620.0 Modified 8.56E402 7.24E+00 3.485401 2.395E00 pCI/g 02-111410 MOL BLANK 1126/0200:00 I I/26/00 1121121200 02-11II141 Carbon-14 EPA62O.0 Modilled 0.005400 1.39500 0.005+00 2i.375+0 pCI/g 02-11141403 DUP VA-02-0176 11/2510212:00 11/26/200 12112/200 02-11141 Carbon-14 EPA 520.0OModftld 4.22E+02 6.26E400 1.795+01 3.385400 pCI/g 02- I11141404 00 VA02-0176 11/25/0212:00 11/26/200 12/12/200 02-11141 Carbon-14 EPA 520.0 Modilled 4.00E+02 5.945400 1.70E+01 3.240pcwg 02-11141-0 LCS KNIOW1' I2'I/020O0:00 11/20/2002 11/27/202 02-11141 Gross Alpha LANI.MLR-100 Modlfld 3.295+02 1.41E+01 PIi 02-1114141 LCS SPIKE I1/26/02M:00 11/21202 11/27/202 02-11141 Gross Apa LANL. MLR-100 Modified 3.42E402 6.87E400 2.4E401 5.46E-01 PCI/g 02-II11141402 MOL BAK11/2610200:00 I11/26/002 11/27/2002 02-11141 GMos"lha LAHL MtR-100 Modlfled 2.075402 2.74E-0 2.74E541 5.46E-01 pCI/g 021113 V447DP 1201:0 1/620 12/02 02-1`1141 Gross Alpft LANI MLR-100 Modified 1.235+00 5.366-01 5.31 6264 C/

02-111I41404 DO VA02-0170 111/2512 12:00 11/26/2002 11/27/200 02-11141 Gross Alpha LANI MLR-`I00 Modified 9.60E541 4.895401 4.93r-41 6.14E541 pO~g 02-114141 LCS KNOWN I1/200200:00 11/26/200 11/27/200 02-M141 Gross Beta LANI. MLR-100 Modified 8.815400

.2.94E+02 _ pCl/9 02-11141401 LCS SPIKE 11/26/0200:-00 11/26/200 11/27/2002 02-i11141 Gros Beta LAM. MLR-100 Modified 2.985+02 5.63E400 1.505+01 6.47-01i, 02-11141-02 MOL BLANK 111/2m0020000 11/ 11/7/00 o26/00 02-114 Gr" owsBt LAMI. MLR-100 Modified -3.0654-1 4.455-01I 4.455-01 8,475-01 PCI/g 02-1`14143 DIP VA-02-0176 11/510 12:0 11/2600 11/27/202 02-11II141 Gross Beta LAM. MLB-100 Modified 2.48E+01 1.485+00 1.885400 8.51E-01 PCI/g 02-11,14144 DO VA-0201I76 l11/2=I212:00 11/28/00 11/27/202 02-11141 Grossilata LANL MLR-lOOMadfld 2.2+0 .47400 I1.855+00 8.48EM0 pCIlgl

'CUleCorntlng Uncertalnty;TPUnTotal Propagated UncsMlntyfMDAwWtnma1 Detected Activity;L.CS-Labora tory Control Sample; MBLoolanhi; DUPwDuplicats; TR~Unormal Sample; DOODuplicato Original E3 ERLI1 N E' Oak Ridge laboratory Su VICS601 Scarboro Road, Oak Ridge, TN 37830 865/481-0683 FAX 865/483-4621

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02-11141 Oner0../

Services Duratek 628 Galtaher Road Purchase Order: 15255 ______

IAnalysis Category. j EVRONMENTAL Final Report of Analysis Kinviston. TN 37763 Sample WOWiir Os Lob sample Clleunt Sample Receipt Analysis Batch Anslyte Method Result CU TPU MDA Report to TpeD Doel Date Date IDUnt 02-11141-I LOS KNOYM 11/261020000 11/2120022 11/27/202 02-11141 Aafleiclunm-2411 LAW ER-130OModlted 3.91E403 1.955402 PCI/g 02-111441 LWS KNOWN I1/28/000:00 11/26/200 11127/20 02-11141 Cobalt-57 LAWLER-130OModifled 1.335403 5.46E401 PC1/g 02-11141-01 Les SPIKE 11//2 00:00 11126/2002 11/27/2002 02-11141 Anriarlu~m-241 LAWI ER-130 Modifed 3.e6E403 4.21E402 4.27E402 5.37E400 pCl~g 02-11i4l-01 LWS SPIKE 1I1/26/02 00:00 11/26/202 I11/27200 02-11141 Coball-57 LAW ERI-10Modlled 1.39E403 `129E*02 1.32E402 4.075400 pCL~g 02-11141402 MOL BLANK 11/M000:00 11/2&1202 11/26/002 02-11141 Coball-57 LAW ER-130OModifed 4.165-02 7.11E-02 7.i11502 1.38-01 PCl~g 02-11141402 Mel. BLANK 11/26200:00 I1126/202 11/6/200 02-11141 Iron-66 LAW ER-l3O WO Wll -3.66E401 1.215E 03 1.21E4.03 2.07E402 pClVg 02-11141402 MOL BLANK I1/26/200:00 1126202 I I 61200 02-11141 1odlne-129 LANL.ER-1l0OModrfed 1.59E-01 2.865-01 2.86E-41 4.04E-01 PCl,/g 02-11141-03 CUP VA-02-0176 11/125/02 12:00 11/26200211/26/2002 02-11141 Cobe11-57 LANL ER-130 Modifed 1.23E400 2.21E-01 2.22E41i 1.10E541 pCVg 02-11141-03 CUP VA-02-0178 11/W/0 12:00 11r261200 11/26/200 02-1114i 02-11141-03 koi-55 LAWN ER-ISO Modrfed 4.8154.00 1.765402 1.765402 1.36E4027 ~ llg9 DUP VA-02-0176 11/261021+/-00 11/26/002 1/ 26200 02-11141 iodkwe129 LANI. ER-I30 Modifed 1.35E-01 2.43E-01 2.43E541 2.55E41 PCI/g 02-11141-04 DO VA-024176 11/2510 12:00 11/26/2002 11/2/202 02-11141 Cobalk-57 LANL ER-130 Modifed 1.02E.00 1.815401 1.82E-01 1.10E-01 PClVg 02-1114-04 DO VA-02-0176 11/25/02 12:00 11/26/200 11/212002M 02-11141 Iran-55 LAM. ER-ISO Modifed 2.965E01 9.73E*02 9.73Ei02 1.36E+02 PCI/g 021110 O VA42-0176 12/0 20 11126/2002 11/26/202 02-11141 lodlns-129 LANL ER-`13OModWfld -5.72E542 1.97E541 1.97E541 3.6 1 lg 02-11141 041 LO S K O *1 / 6 021112120 0 000 1 182 0221214 L a0 M M diie .1 54 17. 25 0 _ 301_ I_ PC l/

02-1114141 Les SPKEO N 11/6/0200:00 I 11261200 1215P200202-11141 Lead-210 EMI.Pb-01 Modrfed 2.44E401 1.515400 16 5 0106 00PC1/g 02-1114142 MLe BLANKE 11/2M000:00 11/26/200 1216/200 02-11141 Lead-210 EML Pb-0l Modifie 2.472400 7.85241 1.7.85-01 1.095400 pC~lg 02-11141-0 DUP VLA 424I6 1 /26 021:00 11126/200 1216/2002 02-1114 Lead-2:10 EM L Pb-0I Modifed 4.295400 78.15-01 8.26541 -- 09.86(-0 "PC' 02-11141-04 DO VA02-0176 11/2610212,00 11/26/2002 1I15/2002 02-11141 Lead-210 EML Pb-01 Modified 3.795400 7.975401 0.045401 9.955o-01 -PpC-itg 02-11141-01 LOS KNOYWf4 11/26/0200:09 11/212002 12016/2002 02-11141 Nepttmlum237 ElCItroM ACM~ Mod 9.805400 3.635-01 PON~

02-1114141 LOS SPIKE '11/210200:00 11/26/200 12/6/00 02-11141 Nevplunitt-237 ElCheoMlACWMISMod 1.0iE401 1.162400 2.015400 1.145Wi-01p 02-11141402 Mal. BLANK 11/26/200:00 11/26/200 12/7/200 02-11141 Nep mkin an-237 EIhrM ACVVO8 Mod 0.00540 0.0054-00 0.002400 4.69E-42 PCI/g 02-11141403 CUP VA02-0176 11/ 2120021 1/26/200 12r7/200 02-11411 1,000Amlu-237 EIChroM ACW6 Mod 0.005400 0.005-400 0.005400 6.25E-02 PCI/g 02-11141-04 DO VA402-41176 11/251021+/-00 11/261200 12)7/2002 02-11i141 Noplunlwit-237 ElChiroMlACiMIS Mod- 2.53 54-2 5.895-02 6.70E-02 1.0-1pCI/g CUsCounting Uncertaitnty;TI'UNTotal Propagtild Uncertalnty;MDAwMinknaI Detected AclivIty;LCS.Lboratoqv Control Sample; MULwalenw. DUPOD"plcate; TRG-Normal Sample; DOwDuplicat. Original EBEERLINE Oak Ridge Laboratory 5wRVC:

I -601Scarboro Road-,Oak Ridge, TN 37830 865/481-0683 FAX 865/483-4821

Printeca. d211812002 1:53 PM C

Page 3 of 7 pepod~g:~

Eberline __ __ __ __ __ __ _ __ 02-11141 O~der DetaNls Services

__ __ __ __ _SDG; Duratek Purchase Order 15255 628 Gallaher Road Analysis Calegoy: ENVIRONMENTAL Final Report of Analysis Kingston, TN 37763 _____ Sample Mawr: Os______

Lab Semple Cliet Sample Receipt Analysis Bac Analyto Metivod Result CU TPU MOA Rep~ort ID Type to Dots Dote Dato IC I Units 02-11141-02 M91. DLANI(I I r26A)200:00 112612002 12/6/00 02-11141 Nickel-5O ASTM 380D-NlModified -7.53E+00 i.63E401 1.63E401 1.98E+01 pCI/u 02-11141-03 CUP - VA-02-0175 11/25/02 1200 i11261200 1268202 02.11141 Nicksel-5 ASTM 3800-N Modified -4.01E+00 1.1915+011 1.196+1 1+01 01PCI/

02-11141-04 DO VA-02-0178 11/28/0212:00 11126100 12161202 02-11141 Nickel-59 ASTM 3SOO-NModified 46.00E+00 1.39E+01 1.395+01 1.806+01 pC~g 02-1114141 LCS KNOWNM 11/26/00:00 111261202 121812002 02-11141 Nickel-3 ASTM 3600-1,I1Modified 1.14E403 2.61E*01 PCI/g 02-1114141 LCS SPIKE 11/2602 00:00 1112612002 12182002 02-1114 NickeI-8 ASTM 3800-NI Modified 2.425+02 3.325*00 3.09E+01 1.80E+00 ig 02.11141402 Mal. BLANK 11/W26020000 111261200 1215/202 02-11141 NIckeI-3 ASTM 3500-NlModified 0.005+00 8.28E-01 0.00E400 1.40E+00 PCI/9 02-11141403 CUP VA-0240176 11/2&2 12:00 tI/24611M0 121811200 02-11141 Nick&M-6 ASTM 3800-NI1 ModNfWe 6.13E-01 8.386-01 8.39E-01 1.406400 pCh/g 011404 DO VA21611/25102 12:00 11/26/200 12M8202 02-11141 NickeI-8 ASTM 3500-NI Modiie 0.006400 8.335-01 0.00E+00 1450 C/

02-1114141 ICS KNOWN I1/281000:00 11/6100 i2111200 02-11141 Phitonkum-2311 EML Pu-02 Modified 4.855400 1.38541 02-11141410 LCS SPIKE 11126/020000 11126/200 12111/200 02-11141 Pbonlum-235 EvL Pu-02 Mod~fed 4.135+00 8.105401 8.75E-01 8.63E-02 pCug 02-11141402 MDI. BLANK 11/2M020000 11/2/200 12111r202 02-11141 Pbatonkum-235 EML Pu-02Modified -5.01E643 7.13E543 7.145-03 7.T98642 pCI/

02-11141-03 CUP VA-02-0178 M125/012:00 11/26200 21/2002M 02-11141 Pkjtonkum-2311 EMI. Pu-02 Modifie 9.46E-03 4.426402 4.42E542 1.20541~ pCwlg 02-11141-04 DO VA-024176 11128/212:00 111M26/00 12M11MM02 02-11141 Ptutcrln-238 EML PU-02 Mod~fid -8.03E-03 9.375403 9.401543 9.496402 PC-Vg 02-11141-01 LCS KNOWN 11/28/0200:00 I1/6/00 12111/202 02-11141 Pk#tonkam#-239#240 EML Pu-02Modified 5.896400 1.83541 PCI/g 02-1114141 LCS SPIKE 11128020000 11/26/202 12)11/2002 02-11141 Pk.jtonkKm-239/240 EMI. Pta-2 Modified 5.095+00 9.695401 1.085400 3.34E-02 PCt/g 02-11141402 MDI. SL.ANI 11/60200M0 111261200 12111=202 02-11141 Plutonkam-2391240 EMI. Pu-02 Modified 0.005+00 0.006+00 0.005+00 3.995-0 pCWg 02-11141-3 CUP VA-02-0178 11/28/021+/-00 11/26200 12111/202 02-11141 Pbiornnu-239/240 5141 Pu-02 Modified 0.005400 0.005+00 0.005+00 4.011542 pCI~g 02-1141-04 DO VA-041811/25/02 12:00 11126/00 12111M00 02-11141 Phitor"11-239/240 EML Pui-02 Modifie 2.865-02 4.81E642 4.51E-02. 7286-02 pCI/g 02-1114141 LCS KNOWN 11/26/000:00 11/261200 1213/002 02-11141 Pkitonlxwn-241 EML PU-02 ModWWe 2.81E4+02 1.29E401 PCI/

02-11`14141 LCS SPIKE 11/28/000:00 11/26200 12113202 02-1114 Plutlonlum-241 5EM1Pu-02 Modified 3.335+02 8.51E+00 2.73E+01 4.83E+00 PCIVg 02-11141402 MBL BLANK 11/26/0200:O 11/MM=0 121131202 02-11141 Pltonkim-241 EML PU-02Modified 1.166+01 2.76E+00 2.91E+00 4.526+00 PCIu 0-144 CU VA001611/28/0212:0 1/620 111202 02-1114 Plulonlwn-241 EMI. Pt*-2 MOd~~e 1.375+02 2.945401 3.13E401 4.7750 C/

02-11141-04 DO VA02-0178 11/125/0 12:00 111128/200212113120 2-14 Plutonlum-241 6141 PU-02 Mod~fwe 5.615+01 2.965+01 3.005401 5I1,E401- -,PcI/g kCU-Counting Uncertainty;TPtUnTotal Propagated Unceilalnty;MDAw~ilnlnal Detected Acttvlty;LCSuLaborsatry Control Sample; MOL-Blank; DUPawtup~lcate; TRO-Normal Sample; DO.Dupllcate Original QQ Ea F. FuLINE Oak Ridge Laboratory 5E RtVI C E 601 Scalboro Road, Oak Ridge, TN 37830 865/461-0683 FAX 865/483-4621

Printed: i 211812082 1:46 PM C Page 4 of 7 Repo'tTQ jvm

Oodr~ t eD**H EbriePaulJones SDG. 02-11141 S e rVices Duratek __ _ _ _ _ _ _ _ _ _ _ Purchase Order 15255 _ _ __ _ _

FinalReport of Analysis 628 Gallaher Road Analysis Categoty: ENVIRONMENTAL

_____Kingston, TN 37783 _ __ ____ Sample Matrix:. Os ________

Liab Sampli Clieat sample Receipt Analysis Batch AIWYIMtodRsutCUTUD to Type ID Dole Rleport Date Date ID MehdRll UTUMAUnits 02-11141-011 Les KNOIM4 I112012 00:00 I11126200 12151200 02-11141 Pbitcnfum-242 EMI. Pu-02 Modified 3.92E400 2.9015-02 PCl/g 02-111,41-01 LCS SPIKE 111rJ26/020000 I11261200 12t51200 02-11141 Pktonluni242 EML Pu-2ow leW.0 0 .7-1 7.70E-Oi 3.972-02 PCilg 02-11141-02 M8L SLANK 126020000 IN 111 261200 12151200 02-11141 Pkuo~nkimw242 EML Pu-02 Modified 2.98E-02 4.24E-02 4.25E-02 4.041 PC4g 02-11141-03 CUP VA-02-0176 11/25/0212:00 111r262002 12f5/200 02-11141 PlJtonkan-242 EMI.Pu-02 Modifted 8.34E-02 7.58E-02 7'.61E-02 4.52E-02 PCi/g 02.11141-04 - DO VA-02-0176 111125102112:00 11/r261202 12/5/202 02-11141 Pk~or*jmi-242 EML P"-2 Modified 0.00E400 0.00+00) 0.005+00 5.85E-02 PCI/g 02-111,11-02 MBL BLAWK 1121200 1126 612002I~ft 12/51200 02-11141 Phktonkwr-244 EMI. Pu-02 Modified 0.00E+00 0.00E400 0.005+00 4.04E-02 pCi/g 02-11141-03 CUP VA-02-0176 1112502 12:00' 11r201200 112/5100 02-11141 Pkutcnkma244 EMI. Pu-02 Modified 0.0OE+00 0.005+00 0.005400 4.52E-02 pCI/g 02-11141-04 DO VA-02-0i76 11112502 12.00 1112612002 Q12512002 02-11141 Plutonhim-244 EML Pu-02 Modified 2.16E-02 4.345-02 4,34E-02 5.86E-02 PCh/g 02411141-0 L-O KNO~W4 1126002 00:.00 "I11Q262002, 12/6/2002 02411141 Tacolethim-99 EIChvoM TCSOI Modified 9.96E402 2195)+01 _pCI/g 02-11141-01 LCS SPIKE 11126102 000 11/21200 12/100 o2-1111411 Technetkwwn-e EICwoM TCSOI Modifie 8.9050 5.385+00 1.375+02 1.5+0p~lg 02-11141-02 Mal. BLANK I11/26100200:00 111~2610012612002 02-11141 Teclwethan-9S EIChroM TCSOI Modifie -1.58E-01 O.76E-01 6.76E-01 1.506+00 pClvg 02-11141-03 DUP VA-02-0170 11/P251022:00 111261200 I2126r20 02-11141 Tachnellm-99 E wOmM TCSOI Modified 3.42E-0I 9.615-01 9,6212-01 1.63E+00 pCl/g 02-11141-04 DO VA-02-0176 111125002 12:00 111261200 1261002 02-11141 Tedietkam-99 EIChroM TCSOI Modified 1.OIE+00 9.61E-01 9.93E-01 1.84E+00 pCI/g 02-111141-0 LCS KNOWN4 11126102 00:00 11121200 1215202 02-11141 Thorkim-22S EMI. Th-01 Modified 4.67E4-00 1.68E-01 pv 02-11141-01 I-CS SPIKE I112610200:00 1112612002 12M5202 02-11`141 Thoelum-228 EMI Th-0l Modified 4.962+00 9,86E-Cl 1.022+00 1.262-01 PCl/g 02-11141-2 MatL BLANK 111201000:0 1112612002M 12/5/202 02-11141 Thorlum-229 EML Th--01 Modified -1.31E-02 1.20E-02 1.20E-02 1.005 -,p-Ci/

02-11141-OS DUP VA-02-0176 1112I5102 12:00 111261200 12/12002 02-11141 Thoulum-228 EML Th-01 Modified 2.65E-02 7.06E-02 7.062-02 1.6-4E-0 PCvq 02-11141-04 DO VA-02-0i76 11125102 12:00 11126/2002 12/5/200 02-11141 Thorlum-228 EML Th-01 Modified -2.65E-04 2.79E-02 2.79E-02 9.44E-02 pClwg 02-1I141-0 I-CS KNOWN 11/2610200:00 111A26120 112/5202 02-11141 Thorkum-230 EML Th-01 Modified 5.282+00 1.43E-01 PCvg 02-1114"-0 LCS SPIKE 112/200 112126M12002m 12/500 02-11141 Thoulwn-230 EML Th-01 Modified 5.905+00 1.14E+00 1.16E4-00 1.11E-01 pCI/g 02-11141-02 MBI. BLANK 111r2610200:00 111261202 12/51202 02-11141 Thorlum-230 EML Th-01 Modified 9.492-02 8.415E-02 8.43E-02 1.08E-01 PCi/g 02-11141-03 ClIP VA-02-0176 111250021i2:00 1I/2612002 12/5/2002 02-11141 Thorlwm-230 EML Th-01 Modifie 2.02E-01 1.17E-01 1.17-01 8.3-2PC/g, 02-11141-04 DO VA-02-'176 11/25/02 12:00 I11/261200 12/5200 02-11141 Thortam-230 EML Th-01 Modified 2.642-01 1.7255-01 1.~262-01 69-0pC/

I CU-Countlng Unceraianty;TPU-Total Propagated Uncertainty;MDAsMinnalm Detected Actlvlty;LC~sLaboratory Control Sample; MoLuBlank; DU.P"uplicate, TRG*Normal Sample; DO-Duplicate Original EEBE-RLiINE Ook Ridge Laboratory 5imwc:

601 Scarboro Road, Oak Ridge. TN 37830 865/481-0683 FAX 865/483-4621

Printed: 1211812002 1:45 PM

-c C Page 5 of 7

~~.ptwr Eberaline 7 PaulJones S.DG:

02.11141 Orle~DeOail Services Durtatki Purchase Order~ 15255 ______

628 Gallaher Road Analysis Category- ENVIRONMENTAL Final Report of Analysis Kingston, TN 37763 sample Malnx: Os ______

Lob Simpl Client sample Receipt Analysie Bit"l An.alyl.ohdRsut ID Type C P Repote

-ID Data Dael Date ID IehdReutC UnUits 02-11141-01 Les KNOWN 11/26/02 00:00 1I26200 12/51200 02-11141 Thorlwn-232 EMAL Th-01 Modified 4.67E400 I.68E-01 pCI/g 02-11141-01 LCS SPIKE 11/2m020:0 11/mm00 125/00 02-11141 Thodum,232 EML Th-0`1 Modified 4.52E400 9.062-01 9.322-01 7.8-2PCl 02-11141-02 MBL BLANK 11126102 00:00 111I6/200 12/5/00 02-111411 Thorlum-232 EMI. Th-01 Modified -7.866-03 9.182-03 9.182-03 9.29E-02 pCi/g 02.11141-03 DUP VA.02-0176 I1125/012:00 111M6M00 MM=/00 02-11141 Thorkum-232 EML Th-01 Modified 9.762-03 3.05E-02 3.052-02 8.02E-02 PCI/g 02-11141-04 DO VA-02-0178 11/25/021i2:00 11126200 1219/2002 02-11141 Thailurm-232 EML Th-01 Modiffied 1.91E-03 2.73E-02 2.73E-02 8.922-0 PCt/g 02-11141-01 LCS KNOWN 111M6MI 00.100 11/W26100 12/2002 02-11141 Total Stronturn EIChrohlSRVW) Modified 2.14E401l 4.49E-01 PCl/9 02-11141-01 Les SPIKE 1111261000:00 11112611200 12/6/200 02-11141 Total Strontium ElChroM SRWAV Modifed 1.89E4+01 1.17E400 2.31E4+00 7.36E-0l pCi/g 02-11141-02 Mal. BLANK 11/2I )20:0 11126I12002 1216/2002 024-11141 Total Strontlum SIChroM SRVY01 Modified 1.29E-01 3.35E-01 3.36E-01 5.86E-01 PCl/g 02-1141-03 DUP VA-02-176 11/26/0212:00 11/26/2002 1216/2002 02-M141 Total Strontium EIC~woMSRVV9I Modified 6.30E-01 4,11E-01 4.16E-01 6.42i2-01 PCk/g 02-11141-04 DO VA-02-01765 11125/02 12:00 11/26/002 12/6100 02-11141 Totld Strontium EW~hrM SRV/01 Modfied 3.29E-0 4.12E-01 4.14E-01 6.92E-01 PCI/g 02-11141.01 LCS KNOWN 11I1rim0200:00 11/26/200 11/29002 02-11141 Trtlium LANL ER-210OMocilfied 1.02E402 3.80E401 pCi/g 02-11141-01 LCS SPIKE 1I1MM/000.100 11126/20 11/29200 02-11141 TrklluM LANI.ER-210OModified 1.21E402 4.71E4.00 1.35E401 4.142400 PCi/g 02-11141-02 M81L BLANK 11/MAW000'.1) ¶1M12620 11/2M200 02-11M4 Trkfiu LANL ER.210OModified 1.872400 2.45E400 2.45E400 -4.112E00 pCi/g 02-11141-03 DUP VA-02-0175 11125/0212.OD 11126200 11129/2002 02-11141 Tritium LANL ER-210OModified 9.172400 2.36E400 2.55E400 3.64E+00 PCUg 02-11141-04 DO VA.02-0176 11/25/0212:00 111 M26100 MM=9/0 02-11141 Tritium LANI ER-210OModified 7.792400 2.29E+00) 2.44240 3.582400 PCI/g 02-11141-01 LOS KNOWN 111IM000)0M 11126200 12151202 .02-11141 Ursnkum-234 EM LU02 Modified 7.81E400 2.81E-01 PCi/g 02-11141-0 LOS SPIK(E 11/O26/020000 11126200 1262002 02-11141 Urmnluto-234 EPAL U-02 Modiie 7.702400 1.52E400 1.60200 8.70E-02 PCi/g 02-11141-02 MetL BLANK I116/000:0 111I6I2002 12/5/00 02-11141 Llrankum-234 EMAL U-02 Modified 8.792-03 2.742-02 2.74E-02 7.212-02 PCi/g 02-11141.03 DUP VA-02-0176 1112510212:00 11126200 1215/200 02-11141 Urenkum-234 EML U-02 Modified i.97E-02 3.42E-02 3.422-02' 6.43E-02 pCl/g 02-11141-04 DO VA-02-0176 I11MM1012:00 111262002 12/5/202 02-11141 Uranium-234 EMAL U-02 Modified 1.05E-02 2.58E-02 2.582-02 5.872-02 pCi/g 02-111141-0 LCS KNO/W4 11126/0200:00 I1121200 1251200 02-11141 Ursnlum-235 EMLUL-02 Modified 3.54E-01 1.28E-02 pCL/g 02-111411-01 ICs SPIKE 11/26w020000 1I121200 12/5/00 02-1114 Urenlum-235 2ML U-02Modified 4.64E-01 2.22E-01 2.242-01 6.282-02 pCl~o 02-11141-02 ML BAK1112/02M :0 112 1215/2002 102 02-11141 UrenAm-23 EMLU-2olld .6-2 4.67E-2 4-02 02 4.420 pO 02-M4114-03 DUP' VA-02-0176 11125/02 12:00 111 M26120 12191200 02-11141 UrwAnmn-235 EML U-02 Modified 0.00840 0.00E400 0.002400 3.962-02 pCl/g 02-11141-04 00 VA-02-0176 1112SX0212:00 12/20 rm 12/51200 02-11141 Urwnlum235 EPAL UJ-02 Modified -2.66E-03 5.342-03 5.342-03 7.242-0)2 pcl/g I,4 CU-Count~ng UncertainirTPIPToteI Propagated UPNFwUMMwMUR-MnnMmm LMOWOuAGUIvEIYLIUoLBUoK~oV Control Sample; MBLuBtank; DUPuDupllcate; TRG=Normal Sample. DOODuplicste Original F.B3ERFLI1NE Oak Ridge Laboratory SERVICES 601 Scarboro Road, Oak Ridge, TN 37830 865/481-0683 FAX 865/483-4621

Printed. .18d1W002 1:45 PM C Page 6 of 7 Eberline Paul Jones SDG:. 02-11141 Services Duaa PurchaseO~rder. 15255 -

628 GalaherRoadnalyssCa_____. ENVIRONMENTAL Final Report of Analysis Kingston, TN 37763 Sample Matfix: Os ___

Lab sample Client sample Receip Ana"yul Botch Anslyte In I Type Method Result CuL TPU MDA Rpr to Date Date Date 1D Units 02-1111141-0I LCS KNV14 1rM26/000:00 111262(10 12l51002 02-11141 U.r0W~wn-235 EMILU-02 Modified 7.61E.00 2.74E-01 Cg 02-11`1411-011 LCS SPOKE l1WM 00:00 11/26200 '1 215r202 02-11141 Urw*Nlu238 EML tU-02 Modified 7.42E+00 1.46E+00 1.556+00 1.02E-01 pCt/g 02-11141-02 MOL SLANK 111126 0200:00 11261202= 12151202 02-11141 Urwmnlm238 EMILU402 Modified -2.25E-03 4.52E-03 4.52E-03 6.13-02 pCi/9 02-11141-03 IDU.P VA-02-41176 11/25/02 12:00 1126=1202 11215120002-11111411Urmnlurn-238 EML U-02 Modified 2.116E-02 3.38E-02 3.38E-02 5602pCi/9 02-11141-04 DO VA-02-0176 11/26/02 12:00 11126200 125/W2002 02.11141 Urmnlum-230 EMIL U-02 Modified 2.3116-02 3,62E-02 3.62E-02 5.8515-02 pCI/g 02-1111141 ILCS KNOWN 111 I 1020:0 I2 111612002 11I1271200 02-1111411 Cobul1-O0 ILANILER-130OModified 2.57E+02 1.17E+01 PCwlg 02-11114141" WCS KNOYMW 11IM26/020000 11/212002 1112712002 02.11 141 Coslimn,437 LAW ER-130OModified 1.63E*02 7.21E+00 pCi/g 02-11114141 LCS SPIKE 1112610000 1112612002 11/271202 02-1111411 Cobalt-80 LANL ER-1130Modified 2.596+02 1.93E*0I 1.96E401 1.4+0 CI/g 02-11141-1" LCS SPIKE 111261200 1111271202 I121200 02-11141 Cosk~m-13 LANL ER-130OModNWe 1.566+02 11.656+01 1.67E+01 9.961-01 PCilg 02-11141-42 MB. StANK 1112&102 00:00 1112r61002 111271200 02-11141 Ceel1an-134 LAN. ER-130 Modified 1.31E-02 1.27E-02 1.27E-02 2.6315-02 pCI1g_

02-11141-02 MBIL BLANK II126/0 00:00 111261002 111271200 02-111141 CeSIuMn-11S LANt ER-1SO Modifed -3.176-03 1.83E-02 1.83E-02 3.416E-02 PCiIg 02-11141-2 MBL BILANK 11WSW)200.00 I11012620 111127120002-11141 Coba"6 ILANILER-130OModified -1.056-03 11.92E-02 1.92E402 3.7015-02 PC119 02-1114`14"2 MBL BLANK 11rA6/020000 I1126/202 11112712002 02-1111411 EuropkuM-IS LANL ER-130OModfied -3.83E-02 1.32E-01 1.32E-41 2.4116-01 pCIII 02-11141-02 MBI. BLANK 11/M26200 " 111212002 111712002 02.11141 Europlum-1154 LAWLER-130OModified 11.9861-02 4.57E-02 4.57E-02 1.046-0 pCl~g 02-1111414-2 MBL SLAWl 11126/0200:0 W1212002 11/212002 02-11141 Europltm,-IS5 LAWLER-130OModified 11.76E-02 3.72E642 3.72E-02 6.-i0262 pCl~g 02-1114142 MOIL BLAWK 111260200:.00 11261202 111271200 02-11141 MaVNgmee54 LAWLER-130OModilled -3.66E643 2.20E602 2.20E642 3.576402 pCIvg 02-11141402 MDL BLANK 11126/200:00 I1121202 11127/202 02-11141 NlobImn-94 LANL ER-130OModMfle 1.196-02 1.73E602 1.73E-02 3i.73E6-0 pCIvg 02-11141402 MOL BLANK 1112r/0200.10 1112612002111271200 02-111141 Silver-1111rn LAHL ER-130 Modified 4.79E603 11.721642 i.72E-02 3.406-02 PCI~g 02-11141402 IVIL SLAWK I1126/000:00 I11261r00 111127/200 02-1111411 ZInc-ft LAWLER-130 Modilled -1.31E643 3.76E-02 3.76E-02 6.581542 pCi/g 0-14-3 DUP VA0-1611125/02 12:00 1116100 1112712002 02-1114 el~-3 AI 1-3 o~id -. 2-2 1860 .4-1 3060 C/

02-11141-03 DP VA-02-0176 112/220 12/0211720 21141 Ceslum,134 LAW! ER-130 Modified 1.826+00 31.666-01 3.874E-1 3.566-0I PCt/g 02-11141-03 DUP VA-02-0170 11125/012:00 111261200 11/2712002 02-11141 Ccbal-60 LANL ER-113OModified 12.66+01 1.996E0 3.07E+00 3.5666401 pCV/g 02-1 1141403 IDUP VA-024176 11125/02 12:00 11121r2002 111127/2002 02-11111411 Curollu-IS LAM.L ER-130 MWodifed 4.996+00 1.066+00 1.06400W 6. I0 pCI/g 02-1114143M IUP VA-02-0176 1I125/0212.010 11I126,200 11/27112002 02-11141 Ewpurlm.-152 ILANILER-130 Modfied 4.19E41 3.666410 3.66E1 6.66-01 p01/9 02-11141143 DUP VA-02-0176 11/25/02 112:0 1111126/2002I1112712002 02-11111411Europlurn-15 LANIL ER-130OModified -3.33E-03 2.21E641 2.21641 3.3601 P.CI/

02-11141403 DUP VA-02-0176 I11WM0 12:00 111261200 11127202 02-11141 Wokw-129 ILANILER1-130 Modified 3.206+01 6.36E+00 5.396+00 2.40E+00 pCi/9 CU-Counting UncetaInty;TPIJTootu Propagated Un ehlalnty;UDAsMInIms1 Detected Activity;LC36Iaborstowy Control Semple; MBLuehank:

DUJPaDuplkcato; TRGUhlornalI Sample; DOinDuplicste Original E IS E RLIl NE: Oak Ridge Laboratory SERVCES 601 Scarboro Road, Oak AIdge, TN 37830 865/481-0683 FAX 865148-3-4621-

I.C Printed; e21151002 1:46 PM Page I of 7 Eberline 7 .77 O2-1#$Work Qfd Services

Dumatek 628 Gallaher Road Purchase Orbder 15255 Analysis Caefeo": ENVIRONMENTAL Final Report of Analysis$ Kingston, TN 37763 ___ ____ Sample Matrix: Os ___

Lob Sample Client Sample Receipt Analyis Batch Analyte, Method Result ID GU TPU MDA Rpr Type ID Date Date Det* 1o Units 02-11141-03 DUP VA-02-0176 11/264)212:OD 1112A200 111271200 02-11141 Lead-2110 LAtIL ER-130 Modfied 1I.DE+01 3,16E400 3.17E+00 3.0215+00 pCi/g 02-11141-03 OUR VA-02-0176 111254212,00 11126/200 1112712002 02-11141 Mwqgauis-54 LA4L ER4I3OModlfled 1.25E-01 2.46E-0I 2.45E-0 4.27E-01 pCI/g 02-11141-03 DUP VA,02-0176 11/WM0 12:00 11/261200 11127/200 02-11141 Niabuiwn-94 LAWJER-130 Modified 1.67E-01 2.74E-01 2.7415-01 4.3215-01 pCi/g 02-1114"-3 DUJP VA-02-0176 1 1/25/0212:00 11261200 m117/rm o2-m14 Slye-1111M LANL ER-130OModlfled 9.93E-02 2.1315-01 2.13E-1 3-01 01PCIg 02-11141-03 OUR VA-02-,176 11125/02 12:00 11/261200 11/27/200 02-11141 Zinc-OS LAWIER-130 Modified 2.00E400 8.96E-01 8.995-01 a.985-01' pCLVg 02-11141-04 DO VA-02-0176 111/26/0212:.00 11/26/200 11127/200 02-11141 Ceslww-134 LANL ER-130 Modifled 8.51E-02 1.7612-01 1.755-01 2.9615-01 pCI/g 02-11141-04 DO VA-02-0176 11/WM/012:00 111/26/2002 11127/2002 02-1iI114 Ceslun.137 LANL ER-130 Modified 6.37E-01 3.52E-01 3.52E-01 3.74E-01 pCi/g 02-1`11411-04 DO VA-02-0176 11/2W/012:00 11/r~26/0 11/2712002 02-11141 cowa~-so LANIN.ER-1ISOMdified 2.61E+01 2.03E+00 2.095+00 3.36E-01 pC~g 02-11141-04 00 VA-02-0176 I1/25/0 12:00 11126/2002 11127/202 02-11141 Europlum-152 LAWL ER-130 Modifid 5.335400 9.91E-01 9.96E-01 1.0850 pCV9 02-11141-04 00 VA-02-0175 11125/012:00 I11262002 11/21200J2 02-111I41 Bwropium-164 LANLER-130Oodlfle 2.29541 4.07E-01 4.07E-01 7.495-01 pCi/g 02-11141-04 D0 VA-02.0176 11/26/0212:00 11/26/200 11/271200 02-111I41 Furopkum-155 LANL ER-130 Modified 2.53E-01 2.065-01 2.06E-01 3.465-01 pCi/g 02-11141-04 DO VA-02-176 11126/012:00 111MG2M= 11/27r12002 02-11141 lodlne-1129 LAIL ER-130 Modified 2.84E+01 4.93E+00 4.962400 2.62E+00_ __pCi/g 02-111,411-04 D0 VA-02-01175 11/26/0 12:00 11/26200 11127/200 02-11141 Lead-210 LANI. ER-13O Modified 1.17E+01 3.195+00 3.2011+00 3.2715+00pig 02-11II141-04 D0 VA-02-01176 11/26/02 12:00 11/26/200 11/127/200 02-11'141 Manganese-541 LANL ER-130 Modified 1.54E-01 2.42E-01 2.42E-01 4.235-01 pCi/g 02-11141-04 00o VAa0-0176 11/26/2 12:00 11I/2612402 111271202 02-11141 NiobluM-941 LANLER-13OMbdlfled 3.91E-02 2.655-01 2.65E-01 4.566-01 PCi/g 02-11141-04 00 VA-02-0170 11/25/0212:00 111I r200 111271202 02-11141 Sover-110om LAWL ER-130 Modified 2.395-01 2.16E-01 2.165-01 3.51E-01 PCl/g 02-11141-04 DO VA-0241i78 1112610212:00 111261200 11/27/2002 02-11141 i Zinc-OS LAN&ER-130OModlfled 1.615400 i7.625-01 7.62E-01 9.950 PCI/g I.

CUwCoUnt~w Uncertainty;TrtleTotal rroPagatod Uuuceutainty;MDAwui~nimall V&WtectAC0yltY;l.G~wl.Xb~rVI0r VOWlO aanMPM; rdiLOUNMaw DUP-Duplicate; TROnNormal Sample; D0.Duplicale Oliginfle E B RL N Oak Ridge Laboratory 601 Scarboro Road, Oak Ridge, TN 37830 865/481-0683 FAX 865/483-4621

SERVICES EBS-OR-18150 Oak Ridge Laboratory December 18, 2002 601 Scarboro Road Oak Ridge, TN 37830 Phone (865) 481-0683 Mr. Paul Jones Fax (865) 483-4621 Duratek Federal Services 628 Gallaher Road Kingston, TN 37763 CASE NARRATIVE Work Order# 02-11141-OR SAMPLE RECEIPT This work order contains one solid sample received 11/26/2002. This sample was analyzed for Americium-241, Curium-243/244, Carbon-14, Gross Alpha/Beta, Lead-210, Nickel-59/63, Neptunium-237, Isotopic Plutonium, Plutonium-241, Technetium-99, Total Strontium, Isotopic Thorium, Tritium, Isotopic Uranium, by Gamma LEPS and by Gamma Spectroscopy.

CLIENT ID LAB ID VA-02-0176 02-11141-04 ANALYTICAL METHODS Americium-241 and Curium-243/244 were analyzed using method EML Am-01 Modified. Carbon-14 was performed using EPA Method 520.0 Modified. Gross Alpha/Beta was performed by gas flow proportional counting using Method LANL MLR-100 Modified. Lead-210 was analyzed using Method ENE Pb-01 Modified. Nickel-59/63 was analyzed using Method ASTM 3500-Ni Modified. Neptunium-237 was analyzed using EIChroM Method ACW08 Modified. Isotopic Plutonium and Plutonium-241 were analyzed using Method EML Pu-02 Modified. Technetium-99 was analyzed using EIChroM Method TCSO1 Modified. Total Strontium was analyzed using EIChroM Method SRWO1 Modified.

Tritium was performed by beta liquid scintillation using Method LANL ER-210 Modified. Isotopic Thorium was analyzed using Method EML Th-0l Modified. Isotopic Uranium was analyzed using Method EML U-02 Modified. Gamma LEPS and Gamma Spectroscopy were performed using Method LANL ER-130 Modified.

ANALYTICAL RESULTS ISOTOPIC URANIUM Uranium samples were prepared by chemical digestion and ion exchange separation. The samples were mounted by micro-precipitation onto a micro-porous filter. The sample activities were then counted by semiconductor alpha spectroscopy.

Sample demonstrated non-detect or background equivalent results for Uranium-234, Uranium-235 and Uranium-238 activity. The chemical recovery was acceptable. Results for the Uranium-234, Uranium-235 and Uranium-238 method blanks demonstrated non-detect equivalent activity. Results for the Uranium-234 and Uranium-235 replicates demonstrated high relative percent difference; however, Page I of 7 00s029

ANALYTICAL RESULTS CONTINUED ISOTOPIC URANIUM continued normalized differences were within acceptable limits. Results for the Uranium-238 replicate demonstrated an acceptable relative percent difference and normalized difference. Results for the Uranium-234 and Uranium-238 laboratory control samples demonstrated acceptable percent recoveries and normalized differences. Results for the Uranium-235 laboratory control sample demonstrated a slightly high percent recovery; however, the normalized difference was within acceptable limits.

ISOTOPIC THORIUM Thorium samples were prepared by chemical digestion and ion exchange separation. The samples were mounted by micro-precipitation onto a micro-porous filter. The samples were then counted by semiconductor alpha spectroscopy.

Sample demonstrated background equivalent results for Thorium-228, Thorium-230 and Thorium-232 activity. The chemical recovery was acceptable. Results for the Thorium-228, Thorium-230 and Thorium-232 method blanks demonstrated background equivalent activity. Results for the Thorium-228, Thorium-230 and Thorium-232 replicates demonstrated high relative percent differences; however, normalized differences were within acceptable limits. Results for the Thorium-228, Thorium-230 and Thorium-232 laboratory control samples demonstrated acceptable percent recoveries and normalized differences.

ISOTOPIC PLUTONIUM (Pu-238/239/240)

Plutonium samples were prepared by chemical digestion and ion exchange separation. The samples were mounted by micro-precipitation onto a micro-porous filter. The samples were then counted by semiconductor alpha spectroscopy. Samples were traced with Plutonium-242 for determination of Plutonium-238 and Plutonium-239/240 activity only. In the event Plutonium-242 was found to be positive within laboratory method code, Pu4ISO, results would have been calculated by normalization of results.

In this case this was not required (see Pu-242/244).

2ndAnalyfical Attempt Samples demonstrated non-detect equivalent results for Plutonium-238 and Plutonium-239/240 activity.

The chemical recovery was acceptable. Results for the Plutonium-238 and Plutonium-239/240 method blanks demonstrated non-detect equivalent activity. Results for the Plutonium-238 and Plutonium-239/240 replicates demonstrated high relative percent differences; however, normalized differences were within acceptable limits. Results for the Plutonium-238 and Plutonium-239/240 laboratory control samples demonstrated acceptable percent recoveries and normalized differences.

ISOTOPIC PLUTONIUM (Pu-242/244)

A second set of Plutonium samples were prepared by chemical digestion using a Plutonium-236 tracer for reporting Plutonium-242 and Plutonium-244 only. The samples were mounted by micro-precipitation onto a micro-porous filter. The samples were then counted by semiconductor alpha spectroscopy.

Sample demonstrated non-detect equivalent results for Plutonium-242 and Plutonium-244 activity. The chemical recovery was acceptable. Results for the Plutonium-242 and Plutonium-244 method blanks Page 2 of 7 00030 0

ANALYTICAL RESULTS CONTINUED ISOTOPIC PLUTONIUM (Pu-242/244) continued demonstrated non-detect equivalent activity. Results for the Plutonium-242 replicate demonstrated a high relative percent difference; however, the normalized difference was within acceptable limits. Results for the Plutonium-242 laboratory control sample demonstrated an acceptable percent recovery and normalized difference.

PLUTONTUM-241 Following the Isotopic Plutonium determination, the Cellulose Nitrate filter was dissolved and Plutonium-241 was determined by liquid scintillation counting.

2nd Analytical Attempt Sample results demonstrated non-detect equivalent Plutonium-241 activity, but the replicate demonstrated slightly positive Plutonium-241 activity. Both the sample and the replicate results demonstrated slightly high detection limits. Results for the Plutonium-241 blank demonstrated slightly positive activity. This method was prone to slight false positives as a result of counting very low energy Beta emissions and potential interferences from. the Plutonium-242. tracer. The evaluation of results should include subtraction of the method blank in order to correct for this phenomena. In the case of results for this sample, this causes results to be non-detect equivalent. Results for the Plutonium-241 replicate demonstrated a high relative percent difference and normalized difference. Results for the Plutonium-241 laboratory control sample demonstrated an acceptable percent recovery and 'a high normalized difference.

NEPTUNIUM-237 by EIChroM Samples were prepared by chemical digestion, in the case of solids, or by acidic dry-down in the case of relative clean water samples. The sample residue was dissolved in dilute acid and the Neptunium separated using EIChroM stabilized selective chemistry. The eluted Neptunium was counted by alpha spectroscopy and the chemical yield determined by beta proportional counting.

Sample demonstrated non-detect equivalent results for Neptunium-237 activity. The chemical recovery was acceptable. Results for the Neptunium-237 method blank demonstrated non-detect equivalent activity. Results for the Neptunium-237 replicate demonstrated a high relative percent difference; however, the normalized difference was within acceptable limits. Results for the Neptunium-237 laboratory control sample demonstrated an acceptable percent recovery and normalized difference.

AMERICIUM/CURIUM Americium/Curium samples were prepared by chemical digestion and ion exchange separation. The samples were mounted by micro-precipitation onto a micro-porous filter. The samples were then counted by semiconductor alpha spectroscopy.

Sample demonstrated non-detect equivalent results for Americium-241 and Curium-243/244 activity.

The chemical recovery was acceptable. Results for the Americium-241 and Curiurn-243/244 method Page 3 of 7 P00031

ANALYTICAL RESULTS CONTINUED AMERICIUMCURM continued blanks demonstrated non-detect equivalent activity. Results for the Americium-241 and Curium-243/244 replicates demonstrated high relative percent differences; however, normalized differences were within acceptable limits. Results for the Americium-241 and Curium-243/244 laboratory control samples demonstrated acceptable percent recoveries and normalized differences.

TOTAL STRONTIUM Samples were prepared by acid digestion and chemical separation using EIChroM stabilized chemical reagents. The Strontium fraction of the sample was eluted onto a steel planchet. Chemical recovery was determined by use of a stable Strontium carrier. The samples were counted by gas flow proportional counting and corrected for 90 Yttrium ingrowth.

Sample demonstrated non-detect equivalent results for Total Strontium activity. The chemical recovery was acceptable. Results for the Total Strontium method blank demonstrated non-detect equivalent activity. Results for the Total Strontium replicate demonstrated a high relative percent difference; however, the normalized difference was within acceptable limits. Results for the Total Strontium laboratory control sample demonstrated an acceptable percent recovery and normalized difference.

TECHNETIUM-99 The samples were prepared by oxidative reaction with Nitric acid and Hydrogen Peroxide. After the samples were thoroughly oxidized, the Technetium was separated using EIChroM resin stabilized chemical reagents. The resin was then transferred to a liquid scintillation vial, cocktail was added and the!

sample was counted on a Packard 2550 TRLL beta liquid scintillation counter.

Sample results were calculated using Technetium-99 quench curve efficiency. Sample demonstrated non-detect equivalent results for Technetium-99 activity. Results for the Technetium-99 method blank demonstrated non-detect equivalent activity. Results for the Technetium-99 replicate demonstrated a high relative percent difference; however, the normalized difference was within acceptable limits.

Results for the Technetium-99 laboratory control sample demonstrated an acceptable percent recovery and normalized difference.

TRITIUM An aliquot of the solid sample material was equilibrated with a known volume of tritium-free water and added to a round-bottomed distillation flask. The aqueous portion of the mixture was distilled and a portion of the middle fraction of the distillate was transferred to a liquid scintillation vial and cocktail was added. The sample was then counted by beta liquid scintillation. A matrix-spiked sample was simultaneously prepared to determine chemical recovery and instrument efficiency.

Sample demonstrated only slightly positive results for Tritium activity. Results for the Tritium blank demonstrated non-detect equivalent activity. Results for the Tritium replicate demonstrated an acceptable relative percent difference and normalized difference. Results for the Tritium laboratory control sample demonstrated an acceptable percent recovery and normalized difference.

Page 4 of 7 on0032

ANALYTICAL RESULTS CONTINUED CARBON-14 The samples were oxidized and the Carbon-14 evolved as CO 2 . This gas was trapped in a liquid absorbent solution, which was mixed with a liquid scintillation cocktail. The samples were counted by beta liquid scintillation using energy windows set to minimize the contribution from other potential contaminants.

Sample demonstrated slightly positive results for Carbon-14 activity. Results for the Carbon-14 blank demonstrated non-detect equivalent activity. Results for the Carbon-14 replicate demonstrated an acceptable relative percent difference and normalized difference. Results for the Carbon-14 laboratory control sample demonstrated an acceptable percent recovery and normalized difference.

NICKEL-63 An aliquot of stable Nickel carrier was added to each water sample or solid sample prior to digestion.

After pH adjustment, Nicke-63 was precipitated selectively with Dimethylglyoxime. The precipitate was separated and the Nickel-63 activity was determined by beta liquid scintillation.

Sample results demonstrated non-detect equivalent Nickel-63 activity. Results for the Nickel-63 blank demonstrated non-detect equivalent activity. Results for the Nickel-63 replicate demonstrated a high relative percent difference and normalized difference. Results for the Nickel-63 laboratory control sample demonstrated a low percent recovery and acceptable normalized difference.

NICKEL-59 After the Nickel-63 had been counted, the samples were transferred to beakers and muffled. The Nickel-59 samples were transferred to planchets with 3-Molar nitric acid and dried. Upon drying, planchets were placed in wax envelopes and taken to the countroom.

Sample results demonstrated non-detect equivalent Nickel-59 activity. Results for the Nickel-59 blank demonstrated non-detect equivalent activity. Results for the Nickel-59 replicate demonstrated a high relative percent difference and an acceptable normalized difference. The Nickel-59 laboratory control sample was not available due to it being an artifact of calculations necessary to process the samples; therefore, percent recovery is not reported for the laboratory control sample.

LEAD-210 A standardized Bismuth carrier was added to the sample. Solid samples were digested and aqueous samples were acidified. The Lead and Bismuth are extracted by solvent extraction. After allowing for ingrowth of the Bismuth-210 daughter, the Bismuth was precipitated, the chemical recovery determined by the stable Bismuth carrier and the activity determined by using a gas flow proportional detector.

Sample results demonstrated slightly positive Lead-210 activity. The chemical recovery was acceptable.

Results for the Lead-210 blank demonstrated slightly positive activity. Results for the Lead-2 10 replicate demonstrated an acceptable relative percent difference and normalized difference. Results for the Lead-210 laboratory control sample demonstrated an acceptable percent recovery and a slightly high normalized difference.

Page 5 of 7 -00033

ANALYTICAL RESULTS CONTINUED GROSS ALPHA/BETA Solid samples for Gross Alpha/Beta analysis were dried, pulverized, and, several grams of the sample were digested under reflux. The digested sample was brought to a standard volume and a small aliquot equivalent to roughly 100 mg was transferred to the planchet for analysis. The samples were then counted by use of a gas proportional counter.

Sample demonstrated non-detect equivalent results for Gross Alpha activity and slightly positive results for Gross Beta activity. Results for the Gross Alpha and Gross Beta method blanks demonstrated non-detect equivalent activity. Results for the Gross Alpha replicate demonstrated a slightly high relative percent difference; however, the normalized difference was within acceptable limits. Results for the Gross Beta replicate demonstrated an acceptable relative percent difference and normalized difference.

Results for the Gross Alpha and Gross Beta laboratory control samples demonstrated acceptable percent recoveries and normalized differences.

GAMMA SPECTRAL ANALYSIS Gamma Spectroscopy samples were prepared by transferring a measured aliquot of the sample to a standard geometry container. The samples were counted on a High Purity Germanium (HPGe) gamma ray detector.

Sample demonstrated non-detect equivalent to only' slightly positive results for gainma-emitting radionuclides as reported. Results for the method blank demonstrated non-detect equivalent activity for gamma-emitting radionuclides as reported. Results for the Cobalt-60 and Europium-152 replicates demonstrated acceptable relative percent differences and normalized differences. Results for the Zinc-65 replicate demonstrated a slightly high relative percent difference; however, the normalized difference was within acceptable limits. Results for the Cobalt-60 and Cesium-137 laboratory control samples demonstrated acceptable percent recoveries and normalized differences.

LOW ENERGY GAMMA SPECTROSCOPY (GAMMA LEPS)

The Gamma LEPS samples were prepared by transferring a measured aliquot of the sample to a standard geometry container. The samples were counted on a planar, High Purity Germanium gamma ray detector.

Sample results demonstrated slightly positive Cobalt-57 activity, and non-detect equivalent Iron-55 and Jodine-129 activity. Results for the Cobalt-57, Iron-55 and Iodine-129 method blanks demonstrated non-detect equivalent activity. Results for the Cobalt-57 replicate demonstrated an acceptable relative percent difference and normalized difference. Results for the Iodine-129 replicate demonstrated a high relative percent difference; however, the normalized difference was within acceptable limits. Results for the Americium-241 and Cobalt-57 laboratory control samples demonstrated acceptable percent recoveries and normalized differences.

Page 6 of 7 nrID34

CERT[FICATION OF ACCURACY I certify that this data report was in compliance with the terms and conditions of the Purchase Order, 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 cognizant project manager or his/her designee to be accurate as verified by the following signature.

I M.R. McDougall Laboratory Manage' Date: 12/18/2002 Page 7 of 7 g 77-00035

Attachment 2: Calculation of Derived Concentration Guideline Values DCGLs were calculated using guidance from section 4.3 of NUREG-1575, Multi-Agency RadiationSurvey and Site InvestigationManual (MARSSIM). For building surfaces it is assumed that the final status surveys used to demonstrate compliance with the criteria for release for unrestricted use will be performed with large area detectors. When only one radionuclide is present, then the site-specific DCGL is the single screening value DCGL for that radionuclide. Since the survey technique cannot provide radionuclide specific information, if more than one radionuclide is present, the site specific gross activity DCGL can be calculated using the following equation:

Gross Activity DCGL =F

+D L + +

DCGL, DCGL2 DCGL3 DCGLU)

Where:

DCGL = the derived concentration screening value for the specific equivalent to 25 mrel/yr, (dpm/100 cm2 )

F = the fraction of the radionuclide mix which is considered detectable based on the radionuclide beta yields and end-point energies relative to the radionuclide used to calibrate the detector, (unitless) f = the relative fraction of radionuclide i in the mix, (unitless)

The fractional radionuclide mixture was obtained from a resin sample (VA-02-0176) analyzed at Eberline Services Laboratory. Radionuclide specific DCGLs for building surfaces were obtained from the screening values published in the Federal Register [FR Vol. 63, No. 222, 11/18/98], and values generated using the NRC DandD screening code when there was no published value for the radionuclide.

The attached table shows the resulting gross activity DCGL for the radionuclide mixture at the A.J. Blotcky reactor facility, rounded to 2 significant figures is 27,000dpm/lOOcm2 .

Page I of 2

( (

Calculation for Derived Concentration Guideline Values Eberline Services Analysis Results above MDA Result Uncertainty MIDA Surface DCGL VDCGL Detei :table Radlonuclide Sample ID (PCa/g) (PClvg) Fraction dpm/IOOcmA2 y/n fraction C-14 VA-02-017( 4.OOE+02 5.94E+00 3.22E1+00 0.8847 3.70E+06 2.39E-07 y 0.8847 CO-57 VA-02-017( 1.02E+00 1.811E-OI 1. 101-01 0.0023 2.12E+05 1.06E-08 y 0.0023 CO-60 VA-02-017it 2.61E+01 2.03E+O0 3.361E-01 0.0579 7.10E+03 8.15E-06 y 0.0579 CS-137 VA-02-017( 5.37E-01 3.52E-0O 3.74E-01 0.0012 2.80E+04 4.25E-08 y 0.0012 EU-152 VA-02-017( 5.33E+00 9.91E-41 1.08E3+00 0.0118 1.27E+04 9.28E-07 y 0.0118 H-3 VA-02-017iC 7.79E-t00 2.29E+00 3.58E+00 0.0172 1.20E+08 1.44E-10 n PB-210 VA-02-017t 3.79E+00 7.97E-01 9.95E3-01 0.0084 5.46E+02 1.54E-05 n PU-241 VA-02-017( 5.61E-s00 2.96E+00 5.1 11E+00 0.0124 1.42E+03 8.74E-06 n TH-230 VA-02-01l7t 2.641E-01 1.25E-0O 6.92E-02 0.0006 3.35E+02 1.74E-06 n ZN-65 VA-02-017it 1.6 1E+00 7.62E-01 9.39E-01 0.0036 4.8 1E+04 7.40E-08 0.0036 y

total 4.52E+02 3.53E-05 det. Frac = 9.61E-01 Gross DCGL= 2.83E+04 reduced DCGL 2.72E+04 dpmIlOOcm^2 Bolded values for Surface DCGL were obtained from the Federal Register All other values generated using DandD version 2.1 Detectable refers to nuclides which are detectable when the detector is operated at an alpha+beta counting voltage using an efficiency for Tc-99 Page 2 of 2

DandD Building Occupancy Scenario Page I of I

,&6, Reocu DandD Building Occupancy Scenario

+ 0 4,?

DandD Version: 2.1.0 Run Date/Time: 1/2/03 9:58:19 AM Site Name: VA Reactor

Description:

C-14 FileName:C:\DandD Docs\C-14.mcd Options:

Implicit progeny doses NOT included with explicit parent doses Nuclide concentrations are distributed among all progeny Number of simulations: 100 Seed for Random Generation: 8718721 Averages used for behavioral type parameters External Pathway is ON Inhalation Pathway is ON Secondary Ingestion Pathway is ON 4 tial Activities:

Nuclide Contamination m2 Distribution 114C IMITED llONSTANT(dpm/1OO cm**2)

Justification for concentration: Used to calculate site 1.OOE+03 cific DCGLS I Site Specific Parameters:

General Parameters:

None Correlation Coefficients:

Summary Results:

'1-40% of the 100 calculated TEDE values are < 6.80E;03 mrem/year .

The 95 % Confidence Interval for the O.9 quantile value of TEDE is 6.33E-03 to 7.41E-03 mremlyear

DandD Building Occupancy Scenario Page 1 of 2

,P4 "C, DandD Building Occupancy Scenario DandD Version: 2.1.0 Run Date/Time: 1/2/03 9:33:40 AM Site Name: VA Reactor

Description:

Co-57 FileName:C:\DandD Docs\CO-57.mcd Options:

Implicit progeny doses NOT included with explicit parent doses Nuclide concentrations are distributed among all progeny Number of simulations: 100 Seed for Random Generation: 8718721 Averages used for behavioral type parameters External Pathway is ON Inhalation Pathway is ON Secondary Ingestion Pathway is ON Initial Activities:

Ae of AeNuclide Distribution 157Co I TED ICONSTANT(dpm/100 cm**2) 1 Tustification for concentration: User to calcukiate site ____ 1.OOE+03 specific DCGLs l Site Specific Parameters:

General Parameters:

None Correlation Coefficients:

.- mmary Results:

90.00% of the 100 calculated TEDE values are < 1.1 8E-0 1 mrem/year.

The 95 % Confidence Interval for the 0.9 quantile value of TEDE is 1.17E-01 to 1.20E-01

DandD Building Occupancy Scenario Page 2 of mrem/year

DandD Building Occupancy Scenario Page I of I

1911 et DandD Building Occupancy Scenario A.,

DandD Version: 2.1.0 Rim Date/Time: 1/2/03 9:54:41 AM Site Name: VA Reactor

Description:

Co-60 FileName:C:\DandD Docs\Co-60.mcd Options:

Inplicit progeny doses NOT included with explicit parent doses Nuclide concentrations are distributed among all progeny

.:Number of simulations: 100 Seed for Random Generation: 8718721 Averages used for behavioral type parameters External Pathway is ON Inhalation Pathway is ON

. Secondary Ingestion Pathway is ON

-a*itial Activities:

Nuclide Area of 2 Distribution NucIIe Contamination m 2 11_1 I6OCo ILTED IlCONSTANT(dpm/100 c**2) 1 Justification for concentration: Used to Calculate site 1.OOE+03 specific DCGLs I.

Site Specific Parameters:

General Parameters:

None Correlation Coefficients:

Summary Results:

S>.tJO% of the 100 calculated TEDE values are < 3.55E+00 mrem/year.

The 95 % Confidence Interval for the 0.9 quantile value of TEDE is 3.50E+00 to 3.61E+O0 mrem/year

DandD Building Occupancy Scenario Page I of I

0fe DandD Building Occupancy Scenario DandD Version: 2.1.0 Run Date/Time: 1/2/03 9:53:03 AM Site Name: VA Reactor

Description:

Zn-65 v'FileName:C:\DandDDocs\Zn-65.mcd Options:

Implicit progeny doses NOT included with explicit parent doses Nuclide concentrations are distributed among all progeny Number of simulations: 100 Seed for Random Generation: 8718721 Averages used for behavioral type parameters External Pathway is ON Inhalation Pathway is ON Secondary Ingestion Pathway is ON (fitialActivities:

Contamination (m ) ____ Dstribtion

[65Zn UNIMITrED IICONSTANT(dpm/100 cm**2) bJusficaton for concentration: Used to calculate site 1.00E+03 specific DCGLs l Site Specific Parameters:

General Parameters:

. None Correlation Coefficients:

None Summary Results:

IKJ0% of the 100 calculated TEDE values are < 520E-0 1 mrem/year .

The 95 % Confidence Interval for the 0.9 quantile value of TEDE is 5.1 7E-0 1 to 5.24E-0 1 mrem/year

- DandD Building Occupancy Scenario Page I of I r t*P.%

RROC,,If DandD Building Occupancy Scenario

0. ° f /

DandD Version: 2.1.0 Run Date/Time: 1/2/03 9:59:57 AM Site Name: VA Reactor

Description:

Cs-137 FileName:C:\DandDDocs\Cs-1 37.mcd Options:

Implicit progeny doses NOT included with explicit parent doses Nuclide concentrations are distributed among all progeny Number of simulations: 100 Seed for Random Generation: 8718721 Averages used for behavioral type parameters External Pathway is ON Inhalation Pathway is ON Secondary Ingestion Pathway is ON tKial Activities:

Iuclide Area of Distbution Nuclide Contamination (m2) Distribution 1137Cs pnuNEIMID JICONSTANT(dpm/1OO cm* 11 Tustficaton for concentration: Used to calculate site 1.OOE+03 specific DCGLs I __

Site Specific Parameters:

General Parameters:

None Correlation Coefficients:

Summary Results:

-JO% of the 100 calculated TEDE values are < 8.93E-01 mrem/year .

The 95 % Confidence Interval for the 0.9 quantile value of TEDE is 8.85E-01 to 9.02E-0I mrem/year

DandD Building Occupancy Scenario Page I of I DandD Building Occupancy Scenario

'a DandD Version: 2.1.0 Run Date/Time: 1/2/03 9:39:19 AM Site Name: VA Reactor

.,Description: Eu-1 52 FileName:C:\DandDDocs\Eu-152.mcd Options:

Implicit progeny doses NOT included with explicit parent doses Nuclide concentrations are distributed among all progeny Number of simulations: 100 Seed for Random Generation: 8718721 Averages used for behavioral type parameters External Pathway is ON Inhalation Pathway is ON Secondary Ingestion Pathway is ON lJtial Activities:

l Nuclide 11 of Distribution l152Eu liPNL ED BCONSTANT(dpm/1OO cm**2)

TJustification for concentration: Used to calculate site l Value 1.OOE+03 specific DCGLs I Site Specific Parameters:

General Parameters:

-None Correlation Coefficients:

Non Summary Results:

KA0% of the 100 calculated TEDE values are < 1.97E+00 mremlyear .

1 ne 95 % Confidence Interval for the 0.9 quantile value of TEDE is 1.92E+00 to 2.03E+00 mremlyear

DandD Building Occupancy Scenario Page I of I QN 00 0 DandD Building Occupancy Scenario DandD Version: 2.1.0 Run Date/Time: 1/2/03 9:44:23 AM Site Name: VA Reactor

Description:

Pb-210 FTileName:C:\DandDDocs\Pb-2 1O.mcd Options:

Implicit progeny doses NOT included with explicit parent doses Nuclide concentrations are distributed among all progeny Number of simulations: 100 Seed for Random Generation: 8718721 Averages used for behavioral type parameters External Pathway is ON Inhalation Pathway is ON Secondary Ingestion Pathway is ON

.otial Activities:

l Nuclide 11 of Contamination (m2)

Distribution itibto flOPb - E IIC NSTANT(dpm/1OO cm**2) I Lustification for concentration: Used to calculate site 1.OOE+03 specific DCGLs I

.Site Specific Parameters:

General Parameters:

- None Correlation Coefficients:

None Summary Results:

ECH-,O% of the 100 calculated TEDE values are < 4.58E+O1 mremlyear .

The 95 % Confidence Interval for theO.9 quantile value of TEDE is4.16E+01 to 5.12E+01 mremlyear

1)andLc Building Occupancy Scenario Page I of I WEQts DandD Building Occupancy Scenario DandD Version: 2.1.0

.Run Date/Time: 1/2/03 9:51:17 AM Site Name: VA Reactor

Description:

Th-230

-aFileName:C:\DandD Docs\Tb-230.mcd Options:

. 0 Implicit progeny doses NOT included with explicit parent doses Nuclide concentrations are distributed among all progeny Number of simullations: 100 Seed for Random Generation: 8718721 Averages used for behavioral type parameters External Pathway is ON Inhalation Pathway is ON Secondary Ingestion Pathway is ON

tial Activities:

Nuclide Area of Distribution Contamination (m2) 23fTh+C IICONSTAN~Tdpm/lOO cm**2)

_IITED I TJustfication for concentration: Used to calculate site 1.OOE+03 ecific DCGLs ,

Site Specific Parameters:

General Parameters:

None Correlation Coefficients:

None Summary Results:

0% of the 1OO calculated TEDE values are < 7.47E+O1 mremlyear.

'is-e 95 % Confidence Interval for the 0.9 quantile value of TEDE is 6.67E+01 to 8.49E+01 mremlyear

DandD Building Occupancy Scenario Page I of I

+

.4.

0 DandD Building Occupancy Scenario

, I DandD Version: 2.1.0 Run Date/Time: 1/2/03 9:46:28 AM Site Name: VA Reactor

.:.Description: Pu-241

.FileName:C:\DandDDocs\Pu-241.mcd Options:

Implicit progeny doses NOT included with explicit parent doses

.Nuclide concentrations are distributed among all progeny Number of simulations: 100 Seed for Random Generation: 8718721 Averages used for behavioral type parameters External Pathway is ON Inhalation Pathway is ON Secondary Ingestion Pathway is ON T tial Activities:

Nuclide ofea in IiDistribution 241Pu I¢vBTED I[CoNSTANT(dpm/1OO cm**2) I seifi Justification for concentration: Used to calculate site Value 1.OOE+03 fC~

Site Specific Parameters:

General Parameters:

None Correlation Coefficients:

None Summary Results:

f<,O% of the 100 calculated TEDE values are < 1.76E+0 I mrem/year .

'ic 95 % Confidence Interval for theO.9 quantile value of TEDE is 1.57E+01 to 2.01E+O1 mremlyear

ALAN J. BLOTCKY REACTOR FACILITY CHARACTERIZATION PLANS AND PROCEDURES Document No. Topic or Title DTK-AD-005 FIRST NOTIFICATION PROCEDURE DTK-AD-029 PERSONNEL TRAINING POLICY AND IMPLEMENTATION PROCEDURE DTK-SF-003 SAFETY HARNESSES LIFELINES/LANYARDS AND GENERAL FALL PROTECTION REQUIREMENTS DTK-SF-005 EQUIPMENT LOCKOUT AND TAGOUT DTK-SF-006 PORTABLE ELECTRICAL EQUIPMENT INSPECTION DTK-SF-008 LADDER INSPECTION AND USE DTK-SF-009 CARE AND USE OF HAND TOOLS AND PORTABLE ELECTRIC POWER TOOLS DTK-SF-012 COMPRESSED GAS STORAGE AND USE DTK-SF-016 CONFINED SPACE ENTRY DTK-SF-023 HEARING CONSERVATION PROGRAM DTK-SF-024 HAZARD COMMUNICATION PROGRAM DTK-SF-029 JOB HAZARD ANALYSIS PL-DTK-01-024 COMMERCIAL SERVICES SAFETY AND HEALTH PLAN REDS-CHM-101 SAMPLE IDENTIFICATION AND CHAIN-OF-CUSTODY REDS-CHR-102 CHARACTERIZATION OF SYSTEMS REDS-CHR-107 SUBSURFACE SOIL SAMPLING REDS-CHR-108 SURFACE SOIL SURVEYS AND THE COLLECTION OF WATER, SEDIMENT, VEGETATION AND SOIL SAMPLES PL-DTK-02-024 HEALTH AND SAFETY PLAN FOR THE CHARACTERIZATION OF THE ALAN J. BLOTCKY REACTOR FACILITY PL-DTK-02-027 CHARACTERIZATION SURVEY PLAN FOR THE ALAN J.

BLOTCKY REACTOR FACILITY PL-DTK-02-025 PROJECT MILESTONES AND MANAGEMENT PLAN FOR THE CHARACTERIZATION OF THE ALAN J. BLOTCKY REACTOR FACILITY

ALAN J. BLOTCKY REACTOR FACILITY CHARACTERIZATION PLANS AND PROCEDURES REFS-INST-231 OPERATION OF INSPECTOR PORTABLE GAMMA SPECTROSCOPY SYSTEM REFS-INST-204 OPERATION OF EBERLINE RO-7 HIGH RANGE ION CHAMBER REFS-CHM-216 OPERATION OF DENVER INSTRUMENT MODEL Xe3000 ANALYTICAL BALANCE REDS-INST-100 RADIATION PROTECTION INSTRUMENTATION PROGRAM REDS-INST-101 ISSUE, CONTROL, AND ACCOUNTABILITY OF RADIATION PROTECTION INSTRUMENTATION REDS-INST-102 QUALITY CONTROL OF COUNTING SYSTEMS AND PORTABLE COUNTERS REDS-INST-104 CALIBRATION AND TEST REQUIREMENTS FOR RADIATION PROTECTION INSTRUMENTATION REDS-INST-201 OPERATION OF THE LUDLUM MODEL 2350 SERIES DATA LOGGERS REDS-INST-216 OPERATION OF F&J LV-I AND HYV-1 AIR SAMPLERS REDS-OPS-208 RADIATION/HAZARDOUS WORK PERMITS REDS-OPS-301 PERFORMANCE OF SURVEYS REDS-OPS-302 SURVEY DOCUMENTATION AND REVIEW REDS-OPS-304 ANALYSIS AND EVALUATION OF AIRBORNE SAMPLES REDS-RAM-102 MOVEMENT AND STORAGE OF RADIOACTIVE MATERIAL REFS-RAM-103 UNCONDITIONAL RELEASE OF TOOLS, EQUIPMENT AND WASTE MATERIALS REDS-CSA-203 LUDLUM MODEL 2350 SERIES DATA LOGGER DOWNLOAD OPERATION

l N 6

( r C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB51OO Analysis Time Time Bkg EfficIency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (cld) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

AOOOIOIFO1 1 6527 15632 D.Schumaker 12V4102 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 0.05 0.21 31.33 A000IO1FOI 2 6527 15632 D.Schumaker 12/4102 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 A000101F01 3 6527 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000101F01 4 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 .4.01 31.33 AOOO1OIFOI 5 6527 15632 D.Schumaker 12V4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 AOOOI01FOI 6 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 AOOOI01F01 7 6527 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 A000101FOI 8 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOO101FOI 9 6527 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101FOI 10 6527 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A0OOI01FOI 11 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000110 FOI 12 6527 15632 D.Schumaker 1214102 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOOI01F01 13 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 AOOOIOF01 14 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 AOOOI01F01 15 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101F01 16 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 AOOOIO1FOI 17 6527 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 AOOOI01F01 18 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 \ -0.25 -0.99 17.32 1.05 4.44 31.33 A000101F01 19 6527 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 AOOO101FOI 20 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101F01 21 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 0.05 0.21 31.33 A000101FOI 22 6527 15632 D.Schumaker 12V4102 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOO1OIFOI 23 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101F01 24 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A0OOIO1FOI 25 6527 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000101F01 26 6527 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000101F01 27 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 AOOOIOF01 28 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOOOIF01 29 6527 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A0OOlOlFOI 30 6527 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 AOO1 01F01 31 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOO1O1F01 32 6527 15632 D.Schumaker 12/4102 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000101F01 33 6527 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 Page 1 of 36

C ( C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis lime Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (cId) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000101FO0 34 6527 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000101S01 1 6541 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 2.05 8.66 31.33 A000101S01 2 6541 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000101SO0 3 6541 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 AOOOIOISOI 4 6541 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101SOI 5 6541 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 3.05 12.89 31.33 AOOO101S02 6 6542 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 AOOO1OIS02 7 6542 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000101SO2 8 6542 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 AOO010S02 9 6542 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000101SO2 10 6542 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101S02 11 6542 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000101S02 12 6542 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 AOOOOIS02 13 6542 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 AOOOOIS02 14 6542 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101S02 15 6542 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 A000101S03 16 6543 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 AOOO1OIS03 17 6543 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 0.05 0.21 31.33 A000101S03 18 6543 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000101SO3 19 6543 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 AOOO101S03 20 6543 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 Page 2 of 36

C ..

Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis TIme Time Bkg Efficiency Bkg EfficIency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

AOOOI01W01 1 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 AOOOIOIWOI 2 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 AOOOIOIWO1 3 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000101WO1 4 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101WO1 5 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 AOOIOIWOI 6 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 AOOOIOIW01 7 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101W01 8 6535 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000101WO1 9 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOO101WOI 10 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 A000101WO1 11 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 AOOO101WOI 12 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 0.05 0.21 31.33 A000101WO1 13 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101WO1 14 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOO1O1WOI 15 6535 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 AOOOIOIW02 1 6536 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 2.05 8.66 31.33 AOOOIOIW02 2 6536 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 0.05 0.21 31.33 AOOI01W02 3 6536 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOI01W02 4 6536 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 AOOI01W02 5 6536 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 AOOI01W02 6 6536 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101W02 7 6536 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000101WO2 8 6536 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 AOOO101W02 9 6536 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 AOOI01W02 10 6536 15632 D.Schuumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101W02 11 6536 15632 D.Schtumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101WO2 12 6536 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 1.75 6.90 17.32 -0.95 -4.01 31.33 A000101W02 13 6536 15632 D.Schuumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 A000101WO2 14 6536 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 Page 3 of 36

C C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Effmclency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000101W03 1 6538 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOI01W03 2 6538 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 AOOOIO1W03 3 6538 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOOIO1W03 4 6538 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000101W03 5 6538 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101W03 6 6538 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 0.05 0.21 31.33 A000101W03 7 6538 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101W03 8 6538 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101W03 9 6538 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101W03 10 6538 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 AOOO101W04 1 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101WO4 2 6540 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 0.05 0.21 31.33 A000101W04 3 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 AOOO101W04 4 6540 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101W04 5 6540 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101W04 6 6540 15632 D.Schumaker 12V4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOOIOIW04 7 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 AOOOIOIW04 8 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101W04 9 6540 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000101W04 10 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101W04 11 6540 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000101WO4 12 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOOOIW04 13 6540 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 AOOI01W04 14 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000101WO4 15 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101W04 16 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000101WO4 17 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000101WO4 18 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 1.05 4.44 31.33 A000101WO4 19 6540 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 Page 4 of 36

..j (C 6 Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LBSIOO Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (ced) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000201FO0 1 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201FOI 2 6548 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 3 6548 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201F01 4 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201F01 5 6548 15632 D.Schumaker 1214102 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 6 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 1.05 4.44 31.33 A000201FOI 7 6548 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FO0 8 6548 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FOI 9 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 10 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201F01 11 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201FOI 12 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201F01 13 6548 15632 D.Schumaker 12V4102 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201F01 14 6548 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201F01 15 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201F01 16 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FO1 17 6548 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201F01 18 6548 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 A000201FO0 19 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201F01 20 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 3.05 12.89 31.33 A000201FO0 21 6548 15632 D.Schumaker 1V24102 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FO0 22 6548 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201F01 23 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 3.05 12.89 31.33 A000201F01 24 6548 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 0.05 0.21 31.33 A000201FOI 25 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 A000201F01 26 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201F01 27 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FOI 28 6548 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201F01 29 6548 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201F01 30 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FOl 31 6548 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FOI 32 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOi 33 6548 15632 D.Schumaker 1214102 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 Page 5 of 36

C (

Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch L85100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (cid) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000201FO1 34 6548 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201F01 35 6548 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FO0 36 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 A000201F01 37 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FOI 38 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FO0 39 6548 15632 D.Schumaker 12V4102 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 40 6548 15632 D.Schumsker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201F01 41 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 A000201FO1 42 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FOI 43 6548 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FOI 44 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201FO1 45 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 46 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 47 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FO1 48 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 A000201FO0 49 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FO0 50 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FO0 51 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FO1 52 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.05 -4.01 31.33 A000201FO1 53 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 A000201FOI 54 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 55 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FO1 56 6548 15632 D.Schumaker 12V4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FO 57 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 A000201FOI 58 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 59 6548 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 45.05 190.4 31.33 A000201F01 60 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 61 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FOI 62 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FO1 63 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 64 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201FO1 85 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FO1 66 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 Page 6 of 36

( ( C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alphim Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis lime lime Bkg EfficI ency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (cid) (cpm) (cld) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000201F01 67 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0. 254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FOI 68 6548 15632 D.Schumaker 12V4/02 20 I 0.25 0. 254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201FOI 69 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0. 254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201F01 70 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 A000201FOI 71 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0. 254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FOI 72 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0. 254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FOI 73 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201F01 74 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201F01 75 6548 15832 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FO0 76 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FO0 77 8548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201F01 78 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FOI 79 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.273 1.75 6.90 17.32 -0.95 -4.01 31.33 A000201F01 80 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FO0 81 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 82 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201FOI 83 6548 15632I D.Schumaker 12/4/02 20 I 0.25 0.)254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FO0 84 6548 15632I D.Schumaker 12/4/02 20 1 0.25 0. 254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201FOI 85 6548 15632I D.Schumaker 12/4/02 20 1 0.25 0..254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201F01 86 6548 15632 I D.Schumaker 12/4/02 20 1 0.25 0.,254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201F01 87 6548 15632 D.Schumaker 12/4/02 20 1 0.25 0..254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201FOI 88 6548 15632 D.Schumaker 12/4/02 20 i 0.25 0..254 1.95 0.237 1.75 6.90 17.32 -0.95 -4.01 31.33 A000201FOI 89 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0..254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201FOI 90 6548 15632 D.Schumaker 12/4/02 20 I 0.25 0..254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201F01 91 6548 15832I D.Schumaker 12/4/02 20 1 0.25 0..254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201 SOI 1 6553 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201SOI 2 6553 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201 SOI 3 6553 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201S01 4 6553 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 Page 7 of 36

F%

C r- {

Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5IOO Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000201S01 5 6553 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201S02 1 6554 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201S02 2 6554 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201S02 3 6554 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201S02 4 6554 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201S02 5 6554 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201S03 1 6555 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201S03 2 6555 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201S03 3 6555 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201S03 4 6555 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201S03 5 6555 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201S03 6 6555 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201S03 7 6555 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201S03 8 6555 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 3.05 12.89 31.33 A000201S03 9 6555 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201S03 10 6555 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201S04 1 6584 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000201S04 2 6584 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 1.85 7.30 15.82 -0.60 -2.54 29.45 A000201S04 3 6584 15632 D.Schumaker 12V9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000201S04 4 6584 15632 D.Schumaker 1219102 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000201S04 5 6584 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -1.60 -6.76 29.45 Page 8 of 36

( (C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Not Beta Sample Batch LB5tOO Analysis Time Tlime Bkg Efficiency Bk9 Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000201S04 6 6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000201S04 7 6584 15632 D.Schumaker 1219/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000201S04 8 6584 15632 D.Schumaker 1219/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000201S04 9 6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000201S04 10 6584 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000201S04 11 6584 15832 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000201504 12 .6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000201S04 13 6584 15632 D.Schumaker 1219/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000201504 14 6584 15632 D.Schumaker 12/9/02 20 i 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000201S04 15 6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000201S04 18 6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000201504 17 6584 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000201S04 18 6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000201S04 19 6584 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000201S04 20 6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000201S04 21 6584 15832 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000201S04 22 6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000201504 23 6584 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -0.60 -2.54 29.45 A000201S04 24 6584 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000201S04 25 6584 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000201S04 26 6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000201S04 27 6584 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 1.40 5.92 29.45 A000201504 28 6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -0.60 -2.54 29.45 A000201504 29 6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000201S04 30 6584 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000201S04 31 6584 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000201T01 1 6588 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 1.85 7.30 15.82 -0.60 -2.54 29.45 A00020IT01 2 6588 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.67 29.45 A000201 TOI 3 6588 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 16.40 69.30 29.45 Page 9 of 36

C C

Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis TIme Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000201T01 4 6588 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -0.60 -2.54 29.45 A000201T01 5 6588 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000201T01 6 6588 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000201TO1 7 6588 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -0.60 -2.54 29.45 A000201T01 8 6588 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000201T01 9 6588 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000201T01 10 6588 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 2.40 10.14 29.45 A000201T02 1 6594 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 0.00 0.00 31.58 A000201T02 2 6594 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 A000201T02 3 6594 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 2.00 8.45 31.58 A000201T02 4 6594 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 A000201T02 5 6594 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 A000201T02 6 6594 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -2.00 -8.45 31.58 A000201T02 7 6594 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 0.00 0.00 31.58 A000201T02 8 6594 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 0.00 0.00 31.58 A000201T02 9 6594 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 0.00 0.00 31.58 A000201T02 10 6594 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 A000201WO1 1 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201WO1 2 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201WO1 3 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201WO1 4 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201WO1 5 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201WO1 6 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201WO1 7 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201W01 8 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 99 17.32 1.05 4.44 31.33 Page 10 of 36

C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bko Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (mi) (cpm) (cld) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000201WO1 9 6549 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W01 10 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201WO1 11 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201WO1 12 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201WO1 13 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201WO1 14 6549 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W01 15 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W01 16 6549 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W01 17 6549 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W02 1 6550 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201W02 2 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W02 3 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W02 4 6550 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W02 5 6550 15632 D.Schumaker 12/4102 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W02 6 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W02 7 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W02 8 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W02 9 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W02 10 6550 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W02 11 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W02 12 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W02 13 6550 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W02 14 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W02 15 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W02 16 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W02 17 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W02 18 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 1.75 6.90 17.32 0.05 0.21 31.33 A000201W02 19 6550 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W02 20 6550 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201W02 21 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201W02 22 6550 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W02 23 6550 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W02 24 6550 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 Page I1 of 36

C

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Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis lime Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (cld) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000201W03 1 6551 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 A000201W03 2 6551 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W03 3 6551 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 1.05 4.44 31.33 A000201W03 4 6551 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201W03 5 6551 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W03 6 6551 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W03 7 6551 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W03 8 6551 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W03 9 6551 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W03 10 6551 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W03 11 6551 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W03 12 6551 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W03 13 6551 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201W03 14 6551 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 4.05 17.11 31.33 A000201W03 15 6551 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201W03 16 6551 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A0002011W03 17 6551 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201W03 18 6551 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W03 19 6551 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W03 20 6551 15632 D.Schumaker 12V4102 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W03 21 6551 15632 D.Schuumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 3.05 12.89 31.33 A000201W03 22 6551 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201W04 1 6552 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W04 2 6552 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 A000201W04 3 6552 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W04 4 6552 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201W04 5 6552 15632 D.Schtumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W04 6 6552 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 A000201W04 7 6552 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201W04 8 6552 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 A000201W04 9 6552 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W04 10 6552 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W04 11 6552 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 0.05 0.21 31.33 Page 12 of 36

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C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000201W04 12 6552 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 0.05 0.21 31.33 A000201W04 13 6552 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W04 14 6552 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 A000201W04 15 6552 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 3.05 12.89 31.33 A000201W04 16 6552 15632 D.Schumaker 12V4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W04 17 6552 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W04 18 6552 15632 D.Schumaker 1214102 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W04 19 6552 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 A000201W04 20 6552 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W04 21 6552 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W04 22 6552 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201W04 23 6552 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W04 24 6552 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 A000201W04 25 6552 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 A000201W04 26 6552 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 A000301 F01 27 6511 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000301 FOI 28 6511 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000301 F01 29 6511 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000301 F01 30 6511 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000301 FOI 31 6511 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000301F01 32 6511 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000301 F01 33 6511 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 A000301 F01 34 6511 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000301WO1 1 6507 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000301WO1 2 6507 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 Page 13 of 36

( 6 Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time lime Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000301W01 3 6507 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.08 A000301W01 4 6507 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000301WO1 5 6507 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000301W01 6 6507 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000301WO1 7 6507 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000301WO1 8 6507 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000301W02 9 6508 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000301W02 10 6508 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000301W02 11 6508 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 A000301W02 12 6508 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000301W03 13 6509 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32. -2.10 -8.87 32.08 A000301W03 14 6509 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000301W03 15 6509 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000301W03 16 6509 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000301W03 17 6509 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000301W03 18 6509 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 A000301W03 19 6509 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.08 A000301W03 20 6509 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 A000301W04 21 6510 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000301W04 22 6510 15632I D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000301W04 23 6510 15632I D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000301W04 24 6510 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000302F01 25 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 A000302F01 26 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302F01 27 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 0.90 3.80 32.08 A000302F01 28 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.08 A000302F01 29 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302F01 30 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302F01 31 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -0.10 -0.42 32.08 Page 14 of 36

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Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5I00 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (cld) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000302F01 32 6497 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -2.10 -8.87 32.08 A000302F01 33 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302F01 34 6497 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 A000302F01 35 6497 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 1.75 6.90 17.32 0.90 3.80 32.08 A000302F01 36 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302F01 37 6497 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000302F01 38 6497 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302F01 39 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302F01 40 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302F01 41 6497 15632 D.Schumaker 1213102 20 I 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -2.10 -8.87 32.08 A000302F01 42 6497 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302F01 43 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 A000302F01 44 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 A000302F01 45 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 A000302F01 46 6497 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000302F01 47 6497 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302F01 48 6497 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 A000302S01 49 6505 15632 D.Schumaker 12V3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302S01 50 8505 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 A000302S01 51 6505 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 A000302S01 52 6505 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302S01 53 6505 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 255.90 # 32.08 A000302S02 54 6506 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 3.90 16.48 32.08 A000302S02 55 6506 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.08 A000302S02 56 6506 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.08 Page 15 of 36

( C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis ple Tonnelec Count Counlt Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000302S02 57 6506 15632 D.Schumaker 12V3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302S02 58 6506 15632 D.Schumaker 12V3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302W01 59 6489 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000302W01 60 6489 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W01 61 6489 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000302W01 62 6489 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W01 63 6489 15632 D.Schumaker 12V3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000302W01 64 6489 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W01 65 6489 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W01 66 6489 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W01 67 6489 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302W01 68 6489 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302W02 69 6494 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302W02 70 6494 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302W02 71 6494 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W02 72 6494 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W02 73 6494 15632 D.Schuumaker 12V3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302W02 74 6494 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -2.10 -8.87 32.08 A000302W02 75 6494 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -0.10 -0.42 32.08 A000302W03 76 6495 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W03 77 6495 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302W03 78 6495 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W03 79 6495 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302W03 80 6495 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302W03 81 6495 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W03 82 6495 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.08 A000302W04 83 6496 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W04 84 6496 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000302W04 85 6496 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 Page 16 of 36

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Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg EffIciency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (cld) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000302W04 86 6496 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.1o 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 A000302W04 87 6496 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 A000302W04 88 6496 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000302W04 89 6496 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 A000302W04 90 6496 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 A000302W04 91 6496 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 A000401FO0 92 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000401FO0 93 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 2.40 10.14 29.45 A000401FOI 94 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 3.40 14.37 29.45 A000401FO0 95 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.50 5.92 29.45 A000401FO0 96 6579 15832 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000401FO1 97 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 10.40 43.94 29.45 A000401FO1 98 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 60.40 255.22 29.45 A000401FO0 99 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 5.40 22.82 29.45 A000401FO1 100 6579 15632 D.Schumaker 12//02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -0.60 -2.54 29A5 A000401F01 101 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 11.40 48.17 29.45 A000401F01 102 6579 15632 D.Schumaker 1219/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 26.40 111.55 29.45 A000401F01 103 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 35.40 149.58 29.45 A000401P01 104 6667 15632 D.Schumaker 17/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401P01 105 6667 15632 D.Schumaker 1/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401P01 106 6667 15632 D.Schumaker 117/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401P01 107 6667 15632 D.Sch umaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 0.35 1.48 34.62 A000401POI 108 6667 15632 D.Sch umaker 117/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -2.65 -11.20 34.62 A000401P01 109 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 1.35 5.70 34.62 A000401PO0 110 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 Page 17 of 36

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C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch 165100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000401PO1 111 6667 155632 D.Schumaker 117/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401PO0 112 6667 i5 5632 D.Schumaker 1/7/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 0.35 1.48 34.62 A000401PO1 113 6667 155i632 D.Schumaker 117/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401POI 114 6667 I15632 D.Schumaker 117103 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -2.65 -11.20 34.62 A000401PO1 115 6667 165632 D.Sch umaker 171703 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 0.35 1A8 34.62 A000401PO1 116 6667 I5632 D.Schumaker 117/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401PO0 117 6667 1r5632 D.Schumaker 1/7/03 20 I 0.25 0.254 2.65 0.237 0.75 2.96 17.32 -1.65 -6.97 34.62 A000401P01 118 6667 1E5632 D.Schumaker 1/7/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401POI 119 6667 if5632 D.Schumaker 117/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401PO1 120 6667 1f5632 D.Schumaker 1/703 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401POI 121 6667 5632 IE D.Schumaker 117/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401POI 122 6667 1f5632 D.Schumaker 11/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401P01 1 123 6667 1f5632 D.Schumaker 1/7/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401POI 124 6667 1f5632 D.Sch umaker 1/7/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 1.35 5.70 34.62 A000401POI 1 125 6667 1'5632 D.Schumaker 117/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 I

A000401P01 128 6667 1f5632 D.Schumaker 117/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401PO0 1 127 6667 i'5632 D.Schumaker 117/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 I

A000401P01 128 6667 1I5632 D.Schumaker 17/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401POI I

129 6667 1i5632 D.Schumaker 1/7/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -2.65 -11.20 34.62 I

A000401POI 130 6667 1!5632 D.Schumaker 1/7/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401POI 131 6667 1'5632 D.Schumaker 117/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -2.65 -11.20 34.62 A000401POI 132 6667 1I5632 D.Schumaker 1/7/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401PO0 133 6667 1'5632 D.Schumaker 1//03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401P01 1 134 6667 1i5632 D.Schumaker 117/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401P01 I

135 6667 115632 D.Schumaker 17/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401POI 1 136 6667 1I5632 D.Schumaker 1/7/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401PO1 1 137 6667 1!5632 D.Schumaker 1/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401P01 1 138 6667 1!5632 D.Schumaker 1W/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 1

A000401P01 139 6667 1I5632 D.Schumaker 117/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 I

A000401POI 140 6667 1!5632 D.Schumaker 11/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401PO1 141 6667 1!5632 D.Schumaker 1/7/03 20 0.25 0.254 2.65 0.237 0.75 2.96 17.32 -2.65 -11.20 34.62 1

A000401PO1 142 6667 15632 D.Schumaker 11/03 20 0.25 0.254 2.65 0.237 0.75 2.96 17.32 -0.65 -2.75 34.62 I

A000401PO1 143 6667 1!5632 D.Schumaker 1/7/03 20 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 Page 18 of 36

( C C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Tlime Tlme Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (ctd) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000401PO1 144 6667 15632 D.Schumaker 1/7/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401PO0 145 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 38.35 162.05 34.62 A000401PO1 146 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401PO0 147 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 0.75 2.96 17.32 -1.65 -6.97 34.62 A000401PO1 148 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -2.65 -11.20 34.62 A000401P01 149 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401P01 150 6667 15632 D.Schumaker 1/7/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -2.65 -11.20 34.62 A000401P01 151 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 1.75 6.90 17.32 -2.65 -11.20 34.62 A000401POI 152 6667 15632 D.Schumaker 1/7/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401P01 153 6667 15632 D.Schumaker 1/7/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401P01 154 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401POI 155 6667 15632 D.Schumaker 117103 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401PO0 156 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401POI 157 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -2.65 -11.20 34.62 A000401PO1 158 6667 15632 D.Schumaker 17/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 0.35 1.48 34.62 A000401P01 159 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -2.65 -11.20 34.62 A000401PO1 160 6667 15632 D.Schumaker 1/7/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401PO1 161 6667 15632 D.Schumaker 117/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 1.35 5.70 34.62 A000401P01 162 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401PO1 163 6667 15632 D.Schumaker 1J7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 0.35 1.48 34.62 A000401POI 164 6667 15632 D.Schumaker 1/7/03 20 I 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401POI 165 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -1.65 -6.97 34.62 A000401PO1 166 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 0.35 1.48 34.62 A000401P01 167 6667 15632 D.Schumaker 1/7/03 20 1 0.25 0.254 2.65 0.237 -0.25 -0.99 17.32 -0.65 -2.75 34.62 A000401WO1 168 6580 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000401WO1 169 6579 15632 D.Schumaker 1219/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000401WO1 170 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000401WO1 171 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 0.40 1.69 29.45 A000401WO1 172 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 Page 19 of 36

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I (

Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis lime Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (cId) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000401WO1 173 6579 15632 D.Schumaker 1219/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000401WO1 174 6579 15632 D.Schumaker 12V9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000401W01 175 6579 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000401W02 176 6581 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 2.40 10.14 29.45 A000401W02 177 6581 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29A5 A000401W02 178 6581 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000401W02 179 6581 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000401W02 180 6581 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000401W02 181 6581 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 0.85 3.35 15.82 0.40 1.69 29.45 A000401W03 182 6582 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000401W03 183 6582 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000401W03 184 6582 15632 D.Schumaker 1219/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.67 29.45 A000401W03 185 6582 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000401W03 186 6582 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.67 29.45 A000401W03 187 6582 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -1.60 -6.67 29.45 A000401W04 188 6583 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.67 29.45 A000401W04 189 6583 15632 D.Schumaker 12/9/02 20 I 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402F01 190 6571 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000402F01 191 6571 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 2.40 10.14 29.45 A000402F01 192 6571 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 2.40 10.14 29.45 A000402F01 193 6571 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 3.40 14.37 29.45 A000402F01 194 6571 15832 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000402F01 195 6571 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 5.40 22.82 29.45 A000402F01 196 6571 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402F01 197 6571 15632 D.Schumaker 120/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402F01 198 6571 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402F01 199 6571 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -0.60 -2.54 29.45 A000402F01 200 6571 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 Page 20 of 36

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( ( C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (cid) (cpm) (cld) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000402F01 201 6571 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000402F01 202 6571 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402S01 203 6576 15632 D.Schumaker 12V9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402S01 204 6576 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000402S01 205 6576 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000402S01 206 6576 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000402S01 207 6576 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 3.40 14.37 29.45 A000402S02 208 6577 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000402S02 209 6577 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402S02 210 6577 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000402S02 211 6577 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000402S02 212 6577 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402S03 213 6578 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 1.40 5.92 29.45 A000402S03 214 6578 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000402S03 215 6578 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -1.60 -6.76 29.45 A000402S03 216 6578 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402S03 217 6578 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -0.60 -2.54 29.45 A000402S03 218 6578 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -1.60 -6.76 29.45 A000402S03 219 6578 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402S03 220 6578 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 Page 21 of 36

C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis lime Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000402S03 221 6578 15632 D.Schumaker 12V9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402S03 222 6578 15632 D.Schumaker 12V9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000402W01 223 6572 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 .0.60 -2.54 29.45 A000402W01 224 6572 15632 D.Schumaker 1219/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000402W01 225 6572 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 2.40 10.14 29.45 A000402W01 226 6572 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402W01 227 6572 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402W01 228 6572 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 A000402W01 229 6572 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000402W01 230 6572 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000402W01 231 6572 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402W01 232 6572 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 2.40 10.14 29.45 A000402W02 233 6573 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 0.40 1.69 29.45 A000402W02 234 6573 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -1.60 -6.76 29.45 A000402W02 235 6573 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 2.40 10.14 29.45 A000402W02 236 6573 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000402W02 237 6573 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000402W02 238 6573 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 A000402W03 239 6574 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000402W03 240 6574 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 .0.60 -2.54 29.45 A000402W03 241 6574 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000402W03 242 6574 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -1.60 -6.76 29.45 A000402W03 243 6574 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 A000402W03 244 6574 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000402W03 245 6574 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000402W03 246 6574 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 1.40 5.92 29.45 A000402W03 247 6574 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000402W03 248 6574 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 1.40 5.92 29.45 A000402W04 249 6575 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -0.60 -2.54 29.45 Page 22 of 36

( ( C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

A000402W04 250 6575 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000402W04 251 6575 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 A000402W04 252 6575 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 B000101FO0 253 6638 15632 D.Schumaker 12/18/02 20 1 0.15 0.254 2.15 0.237 -0.15 -0.59 15.82 0.85 3.59 29.45 BOOOIOIFOI 254 6638 15632 D.Schumaker 12/18/02 20 1 0.15 0.254 2.15 0.237 -0.15 -0.59 15.82 -0.15 -0.63 29.45 B000101FOI 255 6638 15632 D.Schumaker 12/18/02 20 1 0.15 0.254 2.15 0.237 -0.15 -0.59 15.82 0.85 3.59 29.45 B000101F01 256 6638 15632 D.Schumaker 12/18/02 20 1 0.15 0.254 2.15 0.237 -0.15 -0.59 15.82 -1.15 -4.86 29.45 B000101F01 257 6638 15832 D.Schumaker 12/18/02 20 1 0.15 0.254 2.15 0.237 -0.15 -0.59 15.82 -1.15 -4.86 29.45 BOOOIOI01 258 8638 15632 D.Schumaker 12118102 20 1 0.15 0.254 2.15 0.237 -0.15 -0.59 15.82 -1.15 -4.86 29.45 BOOO1OIF01 259 6638 15632 D.Schumaker 12/18/02 20 1 0.15 0.254 2.15 0.237 0.85 3.35 15.82 -2.15 -9.08 29.45 B000101FOI 260 6638 15632 D.Schumaker 12/18/02 20 1 0.15 0.254 2.15 0.237 0.85 3.35 15.82 -0.15 -0.63 29.45 B000101F01 261 6638 15632 D.Schumaker 12/18/02 20 1 0.15 0.254 2.15 0.237 -0.15 -0.59 15.82 -2.15 -9.08 29.45 BOOO101FOI 262 6638 15632 D.Schumaker 12/18102 20 1 0.15 0.254 2.15 0.237 -0.15 -0.59 15.82 -2.15 -9.08 29.45 BOOOOIF01 263 6638 15632 D.Schumaker 12/18/02 20 1 0.15 0.254 2.15 0.237 0.85 3.35 15.82 -2.15 -9.08 29.45 B000101F01 264 6638 15632 D.Schumaker 12/18/02 20 1 0.15 0.254 2.15 0.237 -0.15 -0.59 15.82 2.85 12.04 29.45 B000101FOI 13 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 B000101FO0 14 6515 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 B000101F01 15 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.32 B000101FO0 16 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 1.75 6.90 17.32 -0.10 -0.42 32.32 B000101F01 17 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 B000101FO 18 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.32 BOOIO101 19 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 B000101FO 20 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101F01 21 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -0.10 -0.42 32.32 B000101FOI 22 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 8000101F01 23 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.32 B000101F01 24 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 6000101F01 25 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.32 B000101F01 26 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.32 Page 23 of 36

( C C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha. Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

B000101FOI 27 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -0.10 -0.42 32.32 8000101 FOI 28 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 B000101FO 29 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101F01 30 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 BOO1OIFO1 31 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.32 BOOOIO1F01 32 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.32 B000101FO1 33 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101FO1 34 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.32 B000101FO 35 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101FOI 36 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 BOOO1OIFO1 37 6515 15632 D.Schumaker 12/3102 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101 FO 38 6515 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101WO1 1 6516 15632 D.Schumaker 12/3102 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 BOOOIOIWOI 2 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101WOI 3 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101WOI 4 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 B000101WOI 5 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 B000101WOI 6 6516 15632 D.Schumaker 12/3102 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 BO001OIWOI 7 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.32 B000101WO1 8 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 B000101WO1 9 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 B000101WO1 10 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101WOI 11 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101WOI 12 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 BOOO1O1WOI 13 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 B0001 01WO1 14 6516 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.32 BOOOIOIW02 15 6517 15632 D.Schumaker 12/3102 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -0.10 -0.42 32.32 B000101W02 16 6517 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101W02 17 6517 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 Page 24 of 36

C

(

Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (cld) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

B000101W02 18 6517 15832 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.32 B000101W03 19 6518 15632 D.Schumaker 1213/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 B000101W03 20 8518 15632 D.Schumaker 12/3102 20 I 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -0.10 -0.42 32.32 I

B000101W03 21 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 0.75 2.96 17.32 0.90 3.80 32.32 B000101W03 22 6518 15832 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.32 B000101W03 23 6518 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 B0OOIOIW03 24 6518 15632 D.Schumaker 12/3/02 20 1 025 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 B000101W03 25 8518 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 I

B000101W03 26 6518 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 1

B000101W03 27 6518 15632 D.Schumaker 1213/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.32 1

B000101WO3 28 6518 15632 D.Schumaker 1213/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.32 1

B000101W03 29 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 1

B000101W03 30 8518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 I

B000101W03 31 6518 15832 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 1

B000101IW03 32 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 I

B000101W03 33 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 1

B000101W03 34 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 1

B000101W03 35 6518 15832 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 1

B000101W03 36 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 I

B000101W03 37 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32. -2.10 -8.87 32.32 I

B000101W03 38 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 1

B000101W03 39 6518 15832 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 1

B000101W03 40 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 I

B000101W03 41 6518 15832 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 I

B000101W03 42 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 1

B000101W03 43 6518 15832 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 I

8000101W03 44 6518 15832 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 1

B000101W03 45 6518 15832 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 I

B000101W03 46 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 1

B000101W03 47 6518 15632 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 1

B000101W03 48 6518 15632 D.Schumaker 12/3102 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 1

B000101W04 49 6519 15832 D.Schumaker 12/3/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 I

B000101W04 50 6519 15832 D.Schumaker 1213/02 20 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 Page 25 of 36

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( C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Not Beta Sample Batch LB5100 Analysis Time Time Bkg EfficIency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

B000101W04 51 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -2.10 -8.87 32.32 BOOOIOIW04 52 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 B000101W04 53 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101W04 54 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101W04 55 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 B000101 W04 56 6519 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 BOOO1OIW04 57 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.32 B000101W04 58 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B0O0101W04 59 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -0.10 -0.42 32.32 80001`01W04 60 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 0000101W04 61 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32. -1.10 -4.65 32.32 B000101W04 62 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.32 BOOOIOIW04 63 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.32 B000101W04 64 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.32 B000101W04 65 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.32 B000101W04 66 6519 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.32 B000102F01 67 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102F01 68 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 3.05 12.89 31.33 B000102F01 69 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 B000102FO1 70 6544 15632 D.Schumaker 1214/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102F01 71 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000102F01 72 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 B000102F01 73 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102F01 74 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000102F01 75 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 3.05 12.89 31.33 B000102F01 76 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 B000102FOI 77 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000102F01 78 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 0.05 0.21 31.33 B000102F01 79 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 Page 26 of 36

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Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficlency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (cid) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

B000102F01 80 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000102F01 81 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102F01 82 6544 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102W01 83 6545 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102WOI 84 6545 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102WO1 85 6545 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 8000102W01 86 6545 15632 D.Sc&humaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102W01 87 6545 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.9S 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 8000102W01 88 6545 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000102W01 89 6545 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102W01 90 6545 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 1.05 4.44 31.33 B000102WO1 91 6545 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 B000102WO1 92 6545 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 B000102W01 93 6546 15632 D.Schumaker 12/4102 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 B000102W01 94 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 B000102W01 95 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000102W01 96 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 B000102W01 97 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 B000102W01 98 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102W01 99 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000102WO1 100 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 8000102W01 101 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 B000102W01 102 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102WO1 103 6546 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000102W01 104 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000102W01 105 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102W01 106 6546 15632 D.Schuumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 B000102W01 107 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 B000102WO1 108 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32' -1.95 -8.24 31.33 Page 27 of 36

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C C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Ti me Time Bkg Efflclency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (nnln) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

B000102W01 109 6546 15632 D.Schumaker 1214102 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000102W01 110 6546 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 B000102W01 111 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 1.05 4.44 31.33 B000102W01 112 6546 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95

0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 B000102W01 113 6546 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 B000102W01 114 6546 15832 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000103FOI 115 6475 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 B000103F01 116 6475 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -0.10 -0.42 32.08 B000103F01 117 6475 15832 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 2.90 12.25 32.08 B000103F01 118 6475 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 B000103F01 119 6475 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103F01 120 6475 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103F01 121 6475 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103F01 122 6475 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103F01 123 6475 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -2.10 -8.87 32.08 B000103F01 124 6475 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -2.10 -8.87 32.08 B000103F01 125 6475 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103F01 126 6475 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103S01 127 6547 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 B000103S02 128 6547 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 4.01 31.33 B000103S02 129 6478 15632 D.Schumaker 12V3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 Page 28 of 36

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Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm) 8000103S02 130 8478 15832 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103S02 131 8478 15832 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 1.90 8.03 32.08 B000103S02 132 6478 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 B000103S02 133 8478 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 B000103S02 134 6478 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103S02 135 6478 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103S02 136 8478 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 8000103S02 137 6478 15832 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 8000103S02 138 8478 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 .1.10 -4.65 32.08 B000103S02 139 6478 15832 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103S02 140 8478 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103S02 141 6478 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 B000103W01 142 8471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.08 B000103WO1 143 6471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103W01 144 6471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 8.90 37.61 32.08 B000103W01 145 8471 15632 D.Schumaker 12V3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 1.90 8.03 32.08 B000103W01 146 8471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 8000103W01 147 6471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103W01 148 8471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103W01 149 8471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 B000103WO1 150 8471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103WO1 151 8471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103W01 152 8471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -2.10 -8.87 32.08 B000103W01 153 6471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103W01 154 8471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -0.10 -0.42 32.08 B000103W01 155 8471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 B000103W01 156 6471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 B000103W01 157 6471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 B000103W01 158 6471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 Page 29 of 36

I K- C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time lime Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

B000103W01 159 6471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103W01 160 6471 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103WO1 161 6471 15632 D.Schumaker 12V3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103WO1 162 6471 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103W01 163 6471 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 B000103W01 164 6471 15632 D.Schumaker 12V3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103W01 165 6471 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103W02 166 6472 15632 D.Schumaker 12V3/02 20 I 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 B000103W02 167 6472 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 B000103W02 168 6472 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103W02 169 6472 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 B000103W02 170 6472 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103W02 171 6472 15632 D.Schumaker 12V3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103W02 172 6472 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103W03 173 6473 15632 D.Schumaker 1213/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103W03 174 6473 15632 D.Schumaker 1213/02 20 I 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 B000103W03 175 6473 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 0.90 3.80 32.08 B000103W03 176 6473 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 B000103W03 177 6473 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 B000103W03 178 6473 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 8000103W03 179 6473 15632 D.Schumaker 12/3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 0.90 3.80 32.08 0000103W03 180 6473 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 B000103W03 181 6473 15632 D.Schumaker 12V3/02 20 1 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 B000103W03 182 6473 15632 D.Schumaker 12V3/02 20 I 0.25 0.254 2.10 0.237 0.75 2.96 17.32 3.90 16.48 32.08 B000103W04 183 6474 15632 D.Schumaker 12V3/02 20 1 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -2.10 -8.87 32.08 B000103W04 184 6474 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -0.10 -0.42 32.08 B000103W04 185 6474 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -2.10 -8.87 32.08 BE000103W04 186 6474 15632 D.Schumaker. 12/3/02 20 I 0.25 0.254 2.10 0.237 0.75 2.96 17.32 -1.10 -4.65 32.08 B000103W04 187 6474 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -1.10 -4.65 32.08 B000103W04 188 6474 15632 D.Schumaker 12/3/02 20 I 0.25 0.254 2.10 0.237 -0.25 -0.99 17.32 -0.10 -0.42 32.08 Page 30 of 36

( C y Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

COOI00OHI 189 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 CO0OIOIOHI 190 6595 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 0.00 0.00 31.58 COOOIO1OH1 191 6595 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 C0001010H1 192 6595 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -2.00 -8.45 31.58 C00010110HI 193 6595 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 0.00 0.00 31.58 C0001010HI 194 6595 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -2.00 -8.45 31.58 CO01OIOHI 195 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 C0001010H1 196 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -2.00 -8.45 31.58 COOI00OHI 197 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 COOI00OHI 198 6595 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -2.00 -8.45 31.58 COOI00OHI 199 6595 15632 D.Schumaker 1210/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 C00010101H1 200 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 COOO1OIOHI 201 6595 15632 D.Schumaker 1210/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -2.00 -8.45 31.58 C0001010HI 202 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 1.00 4.23 31.58 C0001010H1 203 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 -2.00 -8.45 31.58 C0001010HI 204 6595 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 C000IOOHI 205 6595 15632 D.Schuumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 COOOIO1OHI 206 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 COOOIOIOHI 207 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 -1.00 -4.23 31.58 C00101010H1 208 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 3.00 12.68 31.58 C0001010HI 209 6595 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 -1.00 -4.23 31.58 C00010110HI 210 6595 15632 D.Schuumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 0.00 0.00 31.58 COOO101OHI 211 6595 15632 D.Schuumaker 1210/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 0.00 0.00 31.58 C00101010H1 212 6595 15632 D.Schurnaker 12110/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 2.00 8.45 31.58 C0001010H1 213 6595 15632 D.Schtumaker 1210/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 1.00 4.23 31.58 C0001010HI 214 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 COOOIOIOHI 215 6595 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 C0001010HI 216 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 -2.00 -8.45 31.58 COOO1OIOHI 217 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 COOO101OHI 218 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 COOOIOIOHI 219 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 2.00 8.45 31.58 C0001010H1 220 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 0.00 0.00 31.58 Page 31 of 36

C C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficlency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (cld) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

COOOIO1OHI 221 6595 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -2.00 -8.45 31.58 COOOIOIOHI 222 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -2.00 -8.45 31.58 COOOI0IOHI 223 6595 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 2.70 10.65 17.96 -1.00 -4.23 31.58 C0001010H1 224 6595 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 0.00 0.00 31.58 D000101 DOI 225 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 16.00 67.61 31.58 DOOOIOI DO0 226 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 -1.00 -4.23 31.58 D0001011DO 227 6598 15632 D.Schumaker 1210/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 91.00 384.51 31.58 D000101 DOI 228 6598 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 1.00 4.23 31.58 D000101 DOI 229 6598 15632 D.Schumaker 1210/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -2.00 -8.45 31.58 DOOIOIDO1 230 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 1.00 4.23 31.58 DOOOIOIDOI 231 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 0.00 0.00 31.58 DOOO101DO0 232 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -2.00 -8.45 31.58 DOOIOIDO 233 6598 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 1.00 4.23 31.58 D000101DO1 234 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 0.00 0.00 31.58 D000101POI 235 6596 15632 D.Schumaker 12/10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 10.00 42.25 31.58 DOOOIOIP01 236 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 36.00 152.12 31.58 DOOOIOIPOI 237 6598 15632 D.Schumaker 1210/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 54.00 228.17 31.58 D000101P01 238 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 19.00 80.28 31.58 DOWOI01P01 239 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 0.00 0.00 31.58 D000101P01 240 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 2.00 8.45 31.58 DOOOIO1P01 241 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 DOOOIOI P01 242 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 1.00 4.23 31.58 DW00101POI 243 6598 15632 D.Schumaker 12110/02 20 1 0.30 0.254 2.00 0.237 0.70 2.76 17.96 0.00 0.00 31.58 DO00IOIPOI 244 6598 15632 D.Schumaker 12V10/02 20 1 0.30 0.254 2.00 0.237 -0.30 -1.18 17.96 -1.00 -4.23 31.58 Page 32 of 36

C C

Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Not Beta Sample Batch LB5100 Analysis Time Time Bkg Efficlency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

DOOOI01V01 245 6586 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 DOOIOIVO0 246 6586 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 DOO1OIVO 247 6586 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -0.60 -2.54 29.45 DOOO1OIVO 248 6586 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 1.40 5.92 29.45 D000101VOI 249 6586 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 DOOO101VOl 250 6586 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 D000101VOl 251 6586 15832 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 0.40 1.69 29.45 DOOI01VOl 252 6586 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -1.60 -6.76 29.45 D000101VO2 253 6587 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 DOOOIO1V02 254 6587 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 2.40 10.14 29.45 D000101V02 255 6587 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 D0001010V02 256 6587 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 1.40 5.92 29.45 D00001V02 257 6587 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 D000101V02 258 6587 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 DOOO1O1V02 259 6587 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 1.40 5.92 29.45 D000101V02 260 6587 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 NOOOIOIFEI 261 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 NOOOI10FEI 262 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 2.05 8.66 31.33 NOO0101FEI 263 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOOIOIFEI 264 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 N000101FE1 265 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 N000101FE1 266 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 Page 33 of 36

Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg EfficIency Bkg Efflclency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (cd) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

NOOO1OIFE1 267 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 N00010IFEI 268 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 N000101FE1 269 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOO1OIFE1 270 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOOIO1FEI 271 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 N000101FEI 272 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 NOOIOFEI 273 6537 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 NOOOI0IFEI 274 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 N000101FE1 275 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 NOOOIOIFE1 276 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOO101FEI 277 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 N00010IFE1 278 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 NOOO1OIFE1 279 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOOIFE1 280 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOO101FEI 281 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 NOO01O1FE1 282 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 NO0OOIFE1 283 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOO101FE1 284 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 NOOOIO1FE1 285 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOOIO1FEI 286 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 NOOOIOIFEI 287 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 N00010IFEI 288 6537 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 NOOIOFEI 289 6537 15632 D.Schumaker 12/4102 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 NOOIOIFEI 290 6537 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 N000101WEI 291 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 NOOOIOIWEI 292 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOOIO1WE1 293 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOO101WE1 294 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 N000101WEI 295 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 Page 34 of 36

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Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

N000101WE1 296 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 4.05 17.11 31.33 NOOOIOIWEI 297 6539 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 NOOOIOIWEI 298 6539 15632 D.Schumaker 12V4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 N000101WEI 299 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 NOO0IOIWEI 300 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -0.95 -4.01 31.33 N000101WEI 301 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOO1WE1 302 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 N00010O1WEI 303 6539 15632 D.Schumaker 1214/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 2.05 8.66 31.33 NOOO1OIWEI 304 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 N000101WEI 305 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOO0IOIWEI 306 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 N0001O1WEI 307 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 N000101WEI 308 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 N000IOIWEI 309 6539 15632 D.Schumaker 12/4102 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 N0001O1WE1 310 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOOIO1WEI 311 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 N000101WEI 312 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 NOOO101WE1 313 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 NO01O1WEI 314 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 1.05 4.44 31.33 N000101WEI 315 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 N000101WE1 316 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 0.05 0.21 31.33 NO0OIO1WEI 317 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 3.05 12.89 31.33 NOOO1O1WE1 318 6539 15632 D.Schumaker 12/4/02 20 I 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -0.95 -4.01 31.33 N000101 WE1 319 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 0.75 2.96 17.32 -1.95 -8.24 31.33 NOOOIO1WEI 320 6539 15632 D.Schumaker 12/4/02 20 1 0.25 0.254 1.95 0.237 -0.25 -0.99 17.32 -1.95 -8.24 31.33 N000201 FE2 321 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 N00020IFE2 322 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 N000201 FE2 323 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 N000201 FE2 324 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 0.40 1.69 29.45 Page 35 of 36

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C Attachment 4: Summary of Alpha and Beta Smear Sample Analysis Bkg Sample Tennelec Count Count Alpha Alpha Beta Beta Net Alpha Net Beta Sample Batch LB5100 Analysis Time Time Bkg Efficiency Bkg Efficiency Alpha Alpha MDA Beta Beta MDA Location Number key SN Lab Analyst Date (min) (min) (cpm) (c/d) (cpm) (c/d) (cpm) (dpm) (dpm) (cpm) (dpm) (dpm)

N000201FE2 325 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 N000201FE2 326 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 N000201FE2 327 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 0.40 1.69 29.45 N000201FE2 328 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -1.60 -6.76 29.45 N000201FE2 329 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -1.60 -6.76 29.45 N000201FE2 330 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 N000201FE2 331 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 2.40 10.14 29.45 N000201FE2 332 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 0.40 1.69 29.45 N000201FE2 333 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 -0.15 -0.59 15.82 -0.60 -2.54 29.45 N000201FE2 334 6585 15632 D.Schumaker 12/9/02 20. 1 0.15 0.254 1.60 0.237 0.85 3.35 15.82 -0.60 -2.54 29.45 N000201FE2 335 6585 15632 D.Schumaker 12/9/02 20 1 0.15 0.254 1.60 0.237 1.85 7.30 15.82 -1.60 -6.76 29.45 Page 36 of 36

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Attachment 5: Summary of Tritium Smear Sample Analysis dpm/100 cmA2 Sampled Sample Sample Lab Analysis Loecation Grid ED by Number Date Batch No: Analyst Date Analysis Result +or- MDA AOOO10FOI B2 L. Finn 1 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 59 AOOOIOIFO1 D4 L. Finn 2 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 53 AOOOIOIFO1 F2 L. Finn 3 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 53 AOOOIOISOI 1 L. Finn 11 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 57 AOOO1O0S02 1 L. Finn 12 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 66 AOOO10IS03 1 L. Finn 13 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 56 AOOOIOIWO1 BI L. Finn 4 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 53 AOOOIOIWOI A8 L. Finn 5 12/3/02 C-020481 T. Proctor 12110/02 Tritium <MDA 53 AOOO1O1W02 B2 L. Finn 6 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 53 AOOOIO1W02 A5 L. Finn 7 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 53 AOOOIO1W03 A4 L. Finn 8 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 53 AOOO1O1W04 A2 L. Finn 9 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 53 AOOO1O1W04 A7 L. Finn 10 12/3/02 C-020481 T. Proctor 12110/02 Tritium <MDA 53 A000201FOl El L. Finn 1 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 60 A000201FOI G4 L. Finn 2 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 60 A000201FOI E3 L. Finn 3 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 60 A000201FOI 1i L. Finn 4 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 60 A000201FOI K3 L. Finn 5 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 60 A000201FOI K5 L. Finn 6 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 60 A000201FOI K6 L. Finn 7 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 60 A000201FOl M5 L. Finn 8 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 60 A000201FOI Dl L. Finn 9 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 60 A000201SOI 1 L. Finn 19 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 51 A000201S02 I L. Finn 20 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 55 A000201S03 I L. Finn 21 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 57 Page 1 of 5

( ( C Attachment 5: Summary of Tritium Smear Sample Analysis, dpm/100 cmA2 Sampled Sample Sample Lab Analysis Location Grid ID by Number Date Batch No: Analyst Date Analysis Result +or- MDA A000201S04 1 L. Finn 26 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 66 A000201S04 2 L. Finn 27 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 66 A000201S04 3 L. Finn 28 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 66 A00020IT01 1 L. Finn 22 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 57 A000201T01 2 L. Finn 23 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 57 A000201T02 1 L. Finn 24 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 58 A000201T02 2 L. Finn 25 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 58 A000201WO1 A6 L. Finn 10 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 54 A000201WO1 BlO L. Finn 11 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 54 A000201W02 A4 L. Finn 12 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 54 A000201W02 B11 L. Finn 13 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 54 A000201W03 A2 L. Finn 14 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 52 A000201W03 A8 L. Finn 15 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 52 A000201W04 A4 L. Finn 16 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 56 A000201W04 B8 L. Finn 17 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 56 A000201W04 A14 L. Finn 18 12/3/02 C-020481 T. Proctor 12/10/02 Tritium <MDA 56 A000301F01 A4 - L. Finn 1 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 56 A000301W01 B2 L. Finn 2 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 A000301W02 BI L. Finn 3 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 A000301W03 Bi L. Finn 4 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 A000301W04 B2 L. Finn 5 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 55 A000302F01 B3 L. Finn 6 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 61 A000302F01 C4 L. Finn 7 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 61 A000302F01 F3 L. Finn 8 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 61 Page 2 of 5

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Attachment 5: Summary of Tritium Smear Sample Analysis dpm/100 cmA2 Sampled Sample Sample Lab Analysis Location Grid ID by Number Date Batch No: Analyst Date Analysis Result +or- MDA A000302S01 1 L. Finn 13 12/5/02 C-020482 T. Proctor 12/10/02 Tritium eMDA 52 A000302S02 I L. Finn 14 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 A000302S03 I L. Finn 15 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 A000302S04 I L. Finn 16 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 56 A000302S05 I L. Finn 17 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 58 A000302W01 B3 L. Finn 9 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 50 A000302W02 A2 L. Finn 10 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 55 A000302W03 B5 L. Finn 11 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 A000302W04 Al L. Finn 12 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 54 A000401F01 Al L. Finn 10 12/6/02 C-020482 T. Proctor 12/10/02 Tritium 792 108 A000401FO1 C4 L. Finn 11 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 A000401W01 B3 L. Finn 12 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 A000401W02 A2 L. Finn 13 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 A000401W03 A2 L. Finn 14 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 A000401W04 A3 L. Finn 15 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 A000402F01 BI L. Finn 1 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 59 A000402F01 B4 L. Finn 2 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 59 A000402S01 1 L. Finn 7 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 A000402S02 1 L. Finn 8 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 56 A000402S03 1 L. Finn 9 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 A000402W01 B4 L. Finn 3 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 Page 3 of 5

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C Attachment 5: Summary of Tritium Smear Sample Analysis dpm/100 cmA2 Sampled Sample Sample Lab Analysis Location Grid ID by Number Date Batch No: Analyst Date Analysis Result +or- MDA A000402W02 A3 L. Finn 4 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 A000402W03 B2 L. Finn 5 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 A000402W04 A2 L. Finn 6 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 BOOOO1FO1 A6 L. Finn 1 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 59 BOOOIOIFOI D6 L. Finn 2 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 59 BOOOIOIFOI C5 L. Finn 3 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 59 BOOOlOIFOI B2 L. Finn 4 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 59 BOOOO1WO1 B5 L. Finn 5 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 54 BOOOlOIWOI A2 L. Finn 6 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 54 BOOOIOIW03 A3 L. Finn 7 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 BOOO11WO3 B4 L. Finn 8 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 BOOO1O0W03 BlI L. Finn 9 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 BOOO11WO3 B14 L. Finn 10 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 BOOO1O1W04 B3 L. Finn 11 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 51 B000102FOI B2 L. Finn 12 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 56 B000102FOI C3 L. Finn 13 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 56 B000102WO1 A2 L. Finn 14 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 B000102WO1 A9 L. Finn 15 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 B000102WOI B14 L. Finn 16 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 B000103FOl A2 L. Finn 17 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 52 B000103WO1 Al L. Finn 18 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 56 B000103W02 B3 L. Finn 19 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 B000103W02 B3 L. Finn 20 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 B000103W03 B2 L. Finn 21 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 Page 4 of 5

( C Attachment 5: Summary of Tritium Smear Sample Analysis dpm/100 cmA2 Sampled Sample Sample Lab Analysis Location Grid ID by Number Date Batch No: Analyst Date Analysis Result +or- MDA B000103W04 Al L. Finn 22 12/5/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 50 COOOIOIHOl 1 L. Finn 16 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 COOOIOIHO1 2 L. Finn 17 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 COOOIOIHO1 3 L. Finn 18 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 COOOIOIHO0 4 L. Finn 19 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 COOOIOIHO1 5 L. Finn 20 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 COOOIOIHOI 6 L. Finn 21 12/6/02 C-020482 T. Proctor 12/10/02 Tritium <MDA 53 Page 5 of 5

C C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efcency Background Instrument Location Number Date Count (sec) Mile Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 A000101OI1 5 18-Nov-02 1.86E+02 30 18 2200 0.228 302 126 BETA Characteriz 243.66 AOOO1O1F01 6 18-Nov-02 6.60E+01 10 18 2200 0.228 302 126 BETA Characteriz 327.21 AOOOIOIFO1 7 18-Nov-02 6.20E+01 10 18 2200 0.228 302 126 BETA Characteriz 243.66 AOOOIOIFO1 8 18-Nov-02 5.40E+01 10 18 2200 0.228 302 126 BETA Characteriz 76.58 AOOO1O1FO1 9 18-Nov-02 5.20E+01 10 18 2200 0.228 302 126 BETA Characteriz 34.81 AOOOIO1FO1 10 18-Nov-02 5.90E+01 10 18 2200 0.228 302 126 BETA Characteriz 181.01 AOOOIOIFO1 11 18-Nov-02 5.80E+01 10 18 2200 0.228 302 126 BETA Characteriz 160.12 AOOOlOlFO1 12 18-Nov-02 7.20E+01 10 18 2200 0.228 302 126 BETA Characteriz 452.52 AOOO1O1FOI 13 18-Nov-02 6.40E+01 10 18 2200 0.228 302 126 BETA Characteriz 285.44 AOOOIOIFO1 14 18-Nov-02 6.30E+01 10 18 2200 0.228 302 126 BETA Characteriz 264.55 A000101FO1 15 18-Nov-02 6.20E+01 10 18 2200 0.228 302 126 BETA Characteriz 243.66 AOOOO1IFOI 16 18-Nov-02 6.50E+01 10 18 2200 0.228 302 126 BETA Characteriz 306.32 AOOOIO1FO1 17 18-Nov-02 5.10E+01 10 18 2200 0.228 302 126 BETA Characteriz 13.92 AOOOIOIFO1 18 18-Nov-02 5.90E+01 10 18 2200 0.228 302 126 BETA Characteriz 181.01 AOOO1OIFOI 19 18-Nov-02 5.90E+01 10 18 2200 0.228 302 126 BETA Characteriz 181.01 AOOOIO1FO1 20 18-Nov-02 6.80E+01 10 18 2200 0.228 302 126 BETA Characteriz 368.98 AOOOIOIFO1 21 18-Nov-02 4.70E+01 10 18 2200 0.228 302 126 BETA Characteriz -69.62 AOOOIOIFO1 22 18-Nov-02 5.60E+01 10 18 2200 0.228 302 126 BETA Characteriz 118.35 AOOOIOlFOI 23 18-Nov-02 7.50E+01 10 18 2200 0.228 302 126 BETA Characteriz 515.18 AOOOlO1FOI 24 18-Nov-02 5.90E+01 10 18 2200 0.228 302 126 BETA Characteriz 181.01 AOOOIOIFO1 25 18-Nov-02 6.90E+01 10 18 2200 0.228 302 126 BETA Characteriz 389.86 AOOOIOlFOI 26 18-Nov-02 7.OOE+01 10 18 2200 0.228 302 126 BETA Characteriz 410.75 AOOOIOIFO1 27 18-Nov-02 4.20E+01 10 18 2200 0.228 302 126 BETA Characteriz -174.05 AOOOIO1FOI 28 18-Nov-02 7.OOE+01 10 18 2200 0.228 302 126 BETA Characteriz 410.75 AOOOIOIFO1 29 18-Nov-02 4.50E+01 10 18 2200 0.228 302 126 BETA Characteriz -111.39 AOOO1O1FO1 30 18-Nov-02 7.40E+01 10 18 2200 0.228 302 126 BETA Characteriz 494.29 AOOOlOlFO1 31 18-Nov-02 4.70E+01 10 18 2200 0.228 302 126 BETA Characteriz -69.62 A0001O1FO1 32 18-Nov-02 7.30E+01 10 18 2200 0.228 302 126 BETA Characteriz 473.41 AOOOlOIFO1 33 18-Nov-02 5.50E+01 10 18 2200 0.228 302 126 BETA Characteriz 97.47 AOOOlO1FO1 34 18-Nov-02 7.10E+01 10 18 2200 0.228 302 126 BETA Characteriz 431.63 AOOOlOlFO1 35 18-Nov-02 6.80E+01 10 18 2200 0.228 302 126 BETA Characteriz 368.98 Page 1 of 50

I. .' I I , ,, , .,r . . Jr ,,,!I Jv i . i. -aI Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw EMfcency Background Instrument Location Number Date Count (sec) Rile Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 AOOOO11FO1 36 18-Nov-02 6.40E+01 10 18 2200 0.228 302 126 BETA Characteriz 285.44 AOOOIOIFOI 37 18-Nov-02 8.10E+01 10 18 2200 0.228 302 126 BETA Characteriz 640.49 AOOOIOIFO1 38 18-Nov-02 6.70E+01 10 18 2200 0.228 302 126 BETA Characteriz 348.09 AOOO1OIFOI 39 18-Nov-02 5.70E+01 10 18 2200 0.228 302 126 BETA Characteriz 139.24 Statistical Summar dpm/100 cm^2

!umber Maximum Mean Std Dev 35 640 241 192 AOOO1OSOI 117 18-Nov-02 4.90E+01 10 18 2200 0.228 302 126 BETA Characteriz -27.85 AOOOIOlSOI 118 18-Nov-02 6.10E+01 10 18 2200 0.228 302 126 BETA Characteriz 222.78 AOOOIOSOI 119 18-Nov-02 5.30E+01 10 18 2200 0.228 302 126 BETA Characteriz 55.69 AOOOIOISOI 120 18-Nov-02 5.60E+01 10 18 2200 0.228 302 126 BETA Characteriz 118.35 AOOOIOISOI 121 18-Nov-02 8.10E+01 10 18 2200 0.228 302 126 BETA Characteriz 640.49 Statistical Summar y dpm/100 cmA2 Number Maximum Mean Std Dev 5 640 202 262 AOOOIOIS02 107 18-Nov-02 5.30E+01 10 18 2200 0.228 302 126 BETA Characteriz 55.69 AOOOIOIS02 108 18-Nov-02 4.60E+01 10 18 2200 0.228 302 126 BETA Charcteriz -90.50 AOOOIOIS02 109 18-Nov-02 5.1OE+01 10 18 2200 0.228 302 126 BETA Characteriz 13.92 AOOOIOIS02 110 18-Nov-02 4.80E+01 10 18 2200 0.228 302 126 BETA Characteriz -48.73 AOOOIOIS02 111 18-Nov-02 4.90E+01 10 18 2200 0.228 302 126 BETA Characteriz -27.85 AOOO1OIS02 112 18-Nov-02 3.60E+01 10 18 2200 0.228 302 126 BETA Characteriz -299.36 AOOOIOIS02 113 18-Nov-02 3.70E+01 10 18 2200 0.228 302 126 BETA Characteriz -278.47 AOOOIOIS02 114 18-Nov-02 4.80E+01 10 18 2200 0.228 302 126 BETA Characteriz -48.73 AOOOlOIS02 115 18-Nov-02 5.10E+01 10 18 2200 0.228 302 126 BETA Characteriz 13.92 AOOOIOIS02 116 18-Nov-02 5.50E+01 10 18 2200 0.228 302 126 BETA Characteriz 97.47 Statistical Summar ry dpm/100 cmA2 Number Maximum Mean Std Dev 10 97 -61 132 Page 2 of 50

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'Irv i Attachment 6: Summary of Total Surface Contaminatin Beta Meanurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 AOOOlOIS03 102 18-Nov-02 3.80E+01 10 18 2200 0.228 302 126 BETA Characteriz -257.59 AOOOlOIS03 103 18-Nov-02 4.30E+01 10 18 2200 0.228 302 126 BETA Characteriz -153.16 AOOOIOlS03 104 18-Nov-02 3.70E+01 10 18 2200 0.228 302 126 BETA Characteriz -278.47 AOOOlOlS03 105 18-Nov-02 4.40E+01 10 18 2200 0.228 302 126 BETA Characteriz -132.28 A000101S03 106 18-Nov-02 4.40E+01 10 18 2200 0.228 302 126 BETA Characteriz -132.28 Statistical Summary dpm/100 cmA2 Number Maximum Mean Std Dev 5 -132 -191 71 AOOOlOlWOl 42 18-Nov-02 4.10E+01 10 18 2200 0.228 302 126 BETA Characteriz -194.93 AOOOlOlWO1 43 18-Nov-02 5.30E+01 10 18 2200 0.228 302 126 BETA Characteriz 55.69 AOOOlOlWO1 44 18-Nov-02 5.00E+01 10 18 2200 0.228 302 126 BETA Characteriz -6.96 AOOOlOlWO1 45 18-Nov-02 5.40E+01 10 18 2200 0.228 302 126 BETA Characteriz 76.58 AOOOlOlWO1 46 18-Nov-02 6.80E+01 10 18 2200 0.228 302 126 BETA Characteriz 368.98 AOOOlOlWO1 47 18-Nov-02 5.40E+01 10 18 2200 0.228 302 126 BETA Characteriz 76.58 AOOOlOlWO1 48 18-Nov-02 4.20E+01 10 18 2200 0.228 302 126 BETA Characteriz -174.05 AOOOlOlWO1 49 18-Nov-02 4.00E+01 10 18 2200 0.228 302 126 BETA Characteriz -215.82 AOOOlOlWO1 50 18-Nov-02 5.50E+01 10 18 2200 0.228 302 126 BETA Characteriz 97.47 AOOOlOlWO1 51 18-Nov-02 4.70E+01 10 18 2200 0.228 302 126 BETA Characteriz -69.62 AOOOlOlWOl 52 18-Nov-02 3.80E+01 10 18 2200 0.228 302 126 BETA Characteriz -257.59 AOOOlOlWO1 53 18-Nov-02 4.20E+01 10 18 2200 0.228 302 126 BETA Characteriz -174.05 AOOOlOlWO1 54 18-Nov-02 5.20E+01 10 18 2200 0.228 302 126 BETA Characteriz 34.81 AOOOlOlWO1 55 18-Nov-02 3.80E+01 10 18 2200 0.228 302 126 BETA Characteriz -257.59 AOOOlOlWO1 56 18-Nov-02 5.20E+01 10 18 2200 0.228 302 126 BETA Characteriz 34.81 AOOOlOlW02 57 18-Nov-02 4.40E+01 10 18 2200 0.228 302 126 BETA Characteriz -132.28 AOOOlOlW02 58 18-Nov-02 5.70E+01 10 18 2200 0.228 302 126 BETA Characteriz 139.24 AOOOlOlW02 59 18-Nov-02 4.30E+01 10 18 2200 0.228 302 126 BETA Characteriz -153.16 AOOOlOlW02 60 18-Nov-02 3.30E+01 10 18 2200 0.228 302 126 BETA Characteriz -362.02 AOOOlOlW02 61 18-Nov-02 5.00E+01 10 18 2200 0.228 302 126 BETA Characteriz -6.96 AOOOlOlW02 62 18-Nov-02 4.80E+01 10 18 2200 0.228 302 126 BETA Characteriz -48.73 AOOOlOlW02 63 18-Nov-02 5.60E+01 10 18 2200 0.228 302 126 BETA Characteriz 118.35 Page 3 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Emciency Background Instrument Location Number Date Count (sec) Fle Det Type (e/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 AOOOlOIW02 64 18-Nov-02 7.10E+01 10 18 2200 0.228 302 126 BETA Characteriz 431.63 AOOOIOIW02 65 18-Nov-02 4.50E+01 10 18 2200 0.228 302 126 BETA Characteriz -111.39 AOOOlOlW02 66 18-Nov-02 5.60E+01 10 18 2200 0.228 302 126 BETA Characteriz 118.35 AOOOIOIW02 67 18-Nov-02 6.60E+01 10 18 2200 0.228 302 126 BETA Characteriz 327.21 AOOOlOIW02 68 18-Nov-02 6.90E+01 10 18 2200 0.228 302 126 BETA Characteriz 389.86 AOOOlOIW02 69 18-Nov-02 5.30E+01 10 18 2200 0.228 302 126 BETA Characteriz 55.69 AOOOlOlW02 70 18-Nov-02 6.00E+01 10 18 2200 0.228 302 126 BETA Characteriz 201.89 AOOOIOlW03 71 18-Nov-02 6.00E+01 10 18 2200 0.228 302 126 BETA Characteriz 201.89 AOOOlOIW03 72 18-Nov-02 6.50E+01 10 18 2200 0.228 302 126 BETA Characteriz 306.32 AOOOlOIW03 73 18-Nov-02 5.70E+01 10 18 2200 0.228 302 126 BETA Characteriz 139.24 A000101W03 74 18-Nov-02 5.OOE+01 10 18 2200 0.228 302 126 BETA Characteriz -6.96 AOOOlOIW03 75 18-Nov-02 5.90E+01 10 18 2200 0.228 302 126 BETA Characteriz 181.01 AOOOIOIW03 76 18-Nov-02 6.70E+01 10 18 2200 0.228 302 126 BETA Characteriz 348.09 AOOOlOIW03 77 18-Nov-02 6.80E+01 10 18 2200 0.228 302 126 BETA Characteriz 368.98 AOOOIOIW03 78 18-Nov-02 5.30E+01 10 18 2200 0.228 302 126 BETA Characteriz 55.69 AOOOIOIW03 79 18-Nov-02 8.30E+01 10 18 2200 0.228 302 126 BETA Characteriz 682.26 AOOOIOIW03 80 18-Nov-02 6.90E+01 10 18 2200 0.228 302 126 BETA Characteriz 389.86 AOOOIOIW04 81 18-Nov-02 5.40E+01 10 18 2200 0.228 302 126 BETA Characteriz 76.58 AOOOlOlW04 82 18-Nov-02 6.40E+01 10 18 2200 0.228 302 126 BETA Characteriz 285.44 AOOOlOlW04 83 18-Nov-02 5.20E+01 10 18 2200 0.228 302 126 BETA Characteriz 34.81 AOOOlOlW04 84 18-Nov-02 4.80E+01 10 18 2200 0.228 302 126 BETA Characteriz -48.73 AOOOIOIW04 85 18-Nov-02 4.80E+01 10 18 2200 0.228 302 126 BETA Characteriz -48.73 AOOOIOIW04 86 18-Nov-02 3.20E+01 10 18 2200 0.228 302 126 BETA Characteriz -382.90 AOOOIOIW04 87 18-Nov-02 4.40E+01 10 18 2200 0.228 302 126 BETA Characteriz -132.28 AOOOlOIW04 88 18-Nov-02 6.30E+01 10 18 2200 0.228 302 126 BETA Characteriz 264.55 AOOOIOIW04 89 18-Nov-02 6.70E+01 10 18 2200 0.228 302 126 BETA Characteriz 348.09 AOOOlOIW04 90 18-Nov-02 6.90E+01 10 18 2200 0.228 302 126 BETA Characteriz 389.86 AOOOIOIW04 91 18-Nov-02 4.20E+01 10 18 2200 0.228 302 126 BETA Characteriz -174.05 AOOO1O1W04 92 18-Nov-02 4.80E+01 10 18 2200 0.228 302 126 BETA Characteriz -48.73 AOOOlOlW04 93 18-Nov-02 3.90E+01 10 18 2200 0.228 302 126 BETA Characteriz -236.70 AOOOIOIW04 94 18-Nov-02 5.OOE+01 10 18 2200 0.228 302 126 BETA Characteriz -6.96 Page 4 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 AOOOlOIW04 95 18-Nov-02 4.80E+01 10 18 2200 0.228 302 126 BETA Characteriz -48.73 AOOOlOlW04 96 18-Nov-02 5.OOE+01I 10 18 2200 0.228 302 126 BETA Characteriz -6.96 AOOOlOlW04 97 18-Nov-02 6.30E+01 10 18 2200 0.228 302 126 BETA Characteriz 264.55 AOOOIOIW04 98 18-Nov-02 5.20E+01 10 18 2200 0.228 302 126 BETA Characteriz 34.81 AOOO101WO4 99 18-Nov-02 5.60E+01 10 18 2200 0.228 302 126 BETA Characteriz 118.35 Statistical Summary dpm/100 cm^2 Number Maximum Mean Std Dev 58 682 64 221 A000201FOI 99 20-Nov-02 6.00E+01 10 21 2200 0.222 283 126 BETA Characteriz 275.28 A000201FOI 100 20-Nov-02 6.70E+01 10 21 2200 0.222 283 126 BETA Characteriz 425.43 A000201FOI 101 20-Nov-02 4.90E+01 10 21 2200 0.222 283 126 BETA Characteriz 39.33 A000201FOI 102 20-Nov-02 5.00E+01 10 21 2200 0.222 283 126 BETA Characteriz 60.78 A000201FOI 103 20-Nov-02 4.90E+01 10 21 2200 0.222 283 126 BETA Characteriz 39.33 A000201FOI 104 20-Nov-02 4.80E+01 10 21 2200 0.222 283 126 BETA Characteriz 17.88 A000201FOI 105 20-Nov-02 5.90E+01 10 21 2200 0.222 283 126 BETA Characteriz 253.83 A000201FOl 106 20-Nov-02 4.90E+01 10 21 2200 0.222 283 126 BETA Characteriz 39.33 A000201FOI 107 20-Nov-02 5.40E+01 10 21 2200 0.222 283 126 BETA Characteriz 146.58 A000201FOI 108 20-Nov-02 5.80E+01 10 21 2200 0.222 283 126 BETA Characteriz 232.38 A000201FOl 109 20-Nov-02 4.80E+01 10 21 2200 0.222 283 126 BETA Characteriz 17.88 A000201FOI 110 20-Nov-02 6.20E+01 10 21 2200 0.222 283 126 BETA Characteriz 318.18 A000201FOI 111 20-Nov-02 5.10E+01 10 21 2200 0.222 283 126 BETA Characteriz 82.23 A000201FOI 112 20-Nov-02 4.60E+01 10 21 2200 0.222 283 126 BETA Characteriz -25.03 A000201FOI 113 20-Nov-02 3.50E+01 10 21 2200 0.222 283 126 BETA Characteriz -260.98 A000201FOI 114 20-Nov-02 5.60E+01 10 21 2200 0.222 283 126 BETA Characteriz 189.48 A000201FOI 115 20-Nov-02 5.30E+01 10 21 2200 0.222 283 126 BETA Characteriz 125.13 A000201FOI 116 20-Nov-02 5.30E+01 10 21 2200 0.222 283 126 BETA Characteriz 125.13 A000201FOI 117 20-Nov-02 3.70E+01 10 21 2200 0.222 283 126 BETA Characteriz -218.08 A000201FOI 118 20-Nov-02 5.80E+01 10 21 2200 0.222 283 126 BETA Characteriz 232.38 A000201FOl 119 20-Nov-02 4.60E+01 10 21 2200 0.222 283 126 BETA Characteriz -25.03 A000201FOI 120 20-Nov-02 5.40E+01 10 21 2200 0.222 283 126 BETA Characteriz 146.58 Page 5 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) 1N1e Det Type (cd) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 A000201FO1 121 20-Nov-02 5.401+01 10 21 2200 0.222 283 126 BETA Characteriz 146.58 A000201FO1 122 20-Nov-02 5.8013+01 10 21 2200 0.222 283 126 BETA Characteriz 232.38 A000201F01 123 20-Nov-02 4.60E+01 10 21 2200 0.222 283 126 BETA Characteriz -25.03 A000201FO1 124 20-Nov-02 3.7013+01 10 21 2200 0.222 283 126 BETA Characteriz -218.08 A000201FO1 125 20-Nov-02 4.30E+01 10 21 2200 0.222 283 126 BETA Characteriz -89.38 A000201F01 126 20-Nov-02 5.10E+01 10 21 2200 0.222 283 126 BETA Characteriz 82.23 A000201FO1 127 20-Nov-02 4.90E+01 10 21 2200 0.222 283 126 BETA Characteriz 39.33 A000201FO1 128 20-Nov-02 5.50E+01 10 21 2200 0.222 283 126 BETA Characteriz 168.03 A000201FO1 129 20-Nov-02 3.60E+01 10 21 2200 0.222 283 126 BETA Characteriz -239.53 A000201FO1 130 20-Nov-02 4.6013+01 10 21 2200 0.222 283 126 BETA Characteriz -25.03 A000201FO1 131 20-Nov-02 2.6013+01 10 21 2200 0.222 283 126 BETA Characteriz -454.03 A000201FO1 132 20-Nov-02 4.8013+01 10 21 2200 0.222 283 126 BETA Characteriz 17.88 A000201F01 133 20-Nov-02 5.3013+01 10 21 2200 0.222 283 126 BETA Characteriz 125.13 A000201FO1 134 20-Nov-02 5.3013+01 10 21 2200 0.222 283 126 BETA Characteriz 125.13 A000201FO1 135 20-Nov-02 5.1OE+01 10 21 2200 0.222 283 126 BETA Characteriz 82.23 A000201F01 136 20-Nov-02 5.30E+0O 10 21 2200 0.222 283 126 BETA Characteriz 125.13 A000201FO1 137 20-Nov-02 6.00E+01 10 21 2200 0.222 283 126 Characteriz BETA 275.28 A000201FO1 138 20-Nov-02 3.80E+01 10 21 2200 0.222 283 126 BETA Characteriz -196.63 A000201FO1 139 20-Nov-02 4.70E+01 10 21 2200 0.222 283 126 BETA Characteriz -3.58 A000201FO1 140 20-Nov-02 5.4013+01 10 21 2200 0.222 283 126 BETA Characteriz 146.58 A000201FO1 141 20-Nov-02 5.50E+01 10 21 2200 0.222 283 126 BETA Characteriz 168.03 A000201FO1 142 20-Nov-02 5.1013+01 10 21 2200 0.222 283 126 BETA Characteriz 82.23 A000201FO1 143 20-Nov-02 5.3013+01 10 21 2200 0.222 283 126 BETA Characteriz 125.13 A000201FO1 144 20-Nov-02 5.1OE+01 10 21 2200 0.222 283 126 Characteriz BETA 82.23 A000201FO1 145 20-Nov-02 5.5013+01 10 21 2200 0.222 283 126 BETA Characteriz 168.03 A000201FO1 146 20-Nov-02 5.10E+01 10 21 2200 0.222 283 126 Characteriz BETA 82.23 A000201FO1 147 20-Nov-02 5.60E+01 10 21 2200 0.222 283 126 BETA Characteriz 189.48 A000201FO1 148 20-Nov-02 4.1013+01 10 21 2200 0.222 283 126 BETA Characteriz -132.28 A000201FO1 173 20-Nov-02 6.20E+01 10 21 2200 0.222 283 126 BETA Characteriz 318.18 A000201FO1 174 20-Nov-02 4.60E+01 10 21 2200 0.222 283 126 BETA Clharacteriz -25.03 A000201FO1 175 20-Nov-02 6.40E+01 10 21 2200 0.222 283 126 BETA Characteriz 361.08 Page 6 of 50

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( C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (see) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 A000201FOl 176 20-Nov-02 5.50E+01 10 21 2200 0.222 283 126 BETA Characteriz 168.03 A000201FOl 177 20-Nov-02 5.40E+01 10 21 2200 0.222 283 126 BETA Characteriz 146.58 A000201FOI 178 20-Nov-02 4.20E+01 10 21 2200 0.222 283 126 BETA Characteriz -110.83 A000201FOl 179 20-Nov-02 4.50E+01 10 21 2200 0.222 283 126 BETA Characteriz -46.48 A000201FOI 180 20-Nov-02 3.90E+01 10 21 2200 0.222 283 126 BETA Characteriz -175.18 A000201FOI 181 20-Nov-02 5.1OE+01 10 21 2200 0.222 283 126 BETA Characteriz 82.23 A000201F01 182 20-Nov-02 4.70E+01 10 21 2200 0.222 283 126 BETA Characteriz -3.58 A000201FOI 183 20-Nov-02 7.10E+01 10 21 2200 0.222 283 126 BETA Characteriz 511.23 A000201FOI 184 20-Nov-02 4.20E+01 10 21 2200 0.222 283 126 BETA Characteriz -110.83 A000201FOI 185 20-Nov-02 6.40E+01 10 21 2200 0.222 283 126 BETA Characteriz 361.08 A000201FOI 186 20-Nov-02 4.30E+01 10 21 2200 0.222 283 126 BETA Characteriz -89.38 A000201FOI 187 20-Nov-02 5.60E+01 10 21 2200 0.222 283 126 BETA Characteriz 189.48 A000201FOI 188 20-Nov-02 4.20E+01 10 21 2200 0.222 283 126 BETA Characteriz -110.83 A000201FOI 189 20-Nov-02 5.60E+01 10 21 2200 0.222 283 126 BETA Characteriz 189.48 A000201FOI 190 20-Nov-02 5.60E+01 10 21 2200 0.222 283 126 BETA Clharacteriz 189.48 A000201FOI 149 20-Nov-02 4.70E+01 10 21 2200 0.222 283 126 BETA Characteriz -3.58 A000201FOI 150 20-Nov-02 5.20E+01 10 21 2200 0.222 283 126 BETA Characteriz 103.68 A000201FOI 151 20-Nov-02 5.60E+01 10 21 2200 0.222 283 126 BETA Characteriz 189.48 A000201FOI 152 20-Nov-02 6.00E+01 10 21 2200 0.222 283 126 BETA Characteriz 275.28 A000201FOI 153 20-Nov-02 5.60E+01 10 21 2200 0.222 283 126 BETA Characteriz 189.48 A000201FOl 154 20-Nov-02 5.20E+01 10 21 2200 0.222 283 126 BETA Characteriz 103.68 A000201FOI 155 20-Nov-02 5.20E+01 10 21 2200 0.222 283 126 BETA Characteriz 103.68 A000201FOI 156 20-Nov-02 2.88E+02 10 21 2200 0.222 283 126 BETA Characteriz 5165.88 A000201F01 157 20-Nov-02 5.70E+01 10 21 2200 0.222 283 126 BETA Characteriz 210.93 A000201FOl 158 20-Nov-02 6.12E+02 10 21 2200 0.222 283 126 BETA Characteriz 12115.69 A000201FOI 159 20-Nov-02 1.94E+02 10 21 2200 0.222 283 126 BETA Characteriz 3149.58 A000201FOI 160 20-Nov-02 5.70E+01 10 21 2200 0.222 283 126 BETA Characteriz 210.93 A000201FOl 161 20-Nov-02 4.60E+01 10 21 2200 0.222 283 126 BETA Characteriz -25.03 A000201FOl 162 20-Nov-02 7.20E+01 10 21 2200 0.222 283 126 BETA Characteriz 532.68 A000201FOI 163 20-Nov-02 5.10E+01 10 21 2200 0.222 283 126 BETA Characteriz 82.23 A000201FOI 164 20-Nov-02 6.40E+01 10 21 2200 0.222 283 126 BETA Characteriz 361.08 Page 7 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Mealurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (Cpm) Area Measurem SurveyTyp dpm/100cm2 A000201FO1 165 20-Nov-02 2.70E+01 10 21 2200 0.222 283 126 BETA Characteriz -432.58 A000201FO1 166 20-Nov-02 5.50E+01 10 21 2200 0.222 283 126 BETA Characteriz 168.03 A000201FO1 167 20-Nov-02 4.40E+01 10 21 2200 0.222 283 126 BETA Characteriz -67.93 A000201FO1 168 20-Nov-02 4.90E+01 10 21 2200 0.222 283 126 BETA Characteriz 39.33 A000201FO1 169 20-Nov-02 4.70E+01 10 21 2200 0.222 283 126 BETA Characteriz -3.58 A000201FO1 170 20-Nov-02 6.60E+01 10 21 2200 0.222 283 126 BETA Characteriz 403.98 A000201FO1 171 20-Nov-02 5.SOE+01 10 21 2200 0.222 283 126 BETA Characteriz 168.03 A000201FO1 172 20-Nov-02 7.30E+01 10 21 2200 0.222 283 126 BETA Characteriz 554.13 Statistical Summary dpm/i00 cmA2 Numbeer Maximum Mean Std Dev 92 12116 313 1399 A000201SO1 191 20-Nov-02 4.70E+01 10 21 2200 0.222 283 126 BETA Characteriz -3.58 A000201SO1 192 20-Nov-02 4.60E+01 10 21 2200 0.222 283 126 BETA Characteriz -25.03 A000201SO1 193 20-Nov-02 4.40E+01 10 21 2200 0.222 283 126 BETA Characteriz -67.93 A000201SO1 194 20-Nov-02 5.30E+01 10 21 2200 0.222 283 126 BETA Characteriz 125.13 A000201SO1 195 20-Nov-02 4.20E+01 10 21 2200 0.222 283 126 BETA Characteriz -110.83 Statistical Summary dpm/100 cmA2 Numbier Maximum Mean Std Dev 5 125 -16 89 A000201S02 196 20-Nov-02 4.40E+01 10 21 2200 0.222 283 126 BETA Characteriz -67.93 A000201S02 197 20-Nov-02 3.40E+01 10 21 2200 0.222 283 126 BETA Characteriz -282.43 A000201S02 198 20-Nov-02 4.20E+01 10 21 2200 0.222 283 126 BETA Characteriz -110.83 A000201S02 199 20-Nov-02 4.20E+01 10 21 2200 0.222 283 126 BETA Characteriz -110.83 A000201S02 200 20-Nov-02 4.90E+01 10 21 2200 0.222 283 126 BETA Characteriz 39.33 Statistical Summary dpm/100 cmA2 Numbi er Maximum Mean Std Dev S 39 -107 116 A000201S03 201 20-Nov-02 6.40E+01 10 21 2200 0.222 283 126 BETA Characteriz 361.08 Page 8 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Mea$urements Count Sample Logged Time Raw Efficlency Background Instrument Location Number Date Count (sec) File Det Type (cld) (cpm) Area Measurem SurveyTyp dpm/100cm 2 A000201S03 202 20-Nov-02 5.40E+01 10 21 2200 0.222 283 126 BETA Characteriz 146.58 A000201S03 203 20-Nov-02 5.90E+01 10 21 2200 0.222 283 126 BETA Characteriz 253.83 A000201S03 204 20-Nov-02 5.70E+01 10 21 2200 0.222 283 126 BETA Characteriz 210.93 A000201S03 205 20-Nov-02 5.00E+01 10 21 2200 0.222 283 126 BETA Characteriz 60.78 A000201S03 206 20-Nov-02 5.50E+01 10 21 2200 0.222 283 126 BETA Characteriz 168.03 A000201S03 207 20-Nov-02 5.50E+01 10 21 2200 0.222 283 126 BETA Characteriz 168.03 A000201S03 208 20-Nov-02 5.10E+01 10 21 2200 0.222 283 126 BETA Characteriz 82.23 A000201S03 209 20-Nov-02 5.OOE+01 10 21 2200 0.222 283 126 BETA Characteriz 60.78 A000201S03 210 20-Nov-02 4.10E+01 10 21 2200 0.222 283 126 BETA Characteriz -132.28 Statistical Summary dpm/100 CmA2 Number Maximum Mean Std Dev 10 361 138 133 A000201S04 1 6-Dec-02 9.80E+01 10 49 2200 0.227 404 126 BETA Characteriz 643.31 A000201S04 2 6-Dec-02 8.30E+01 10 49 2200 0.227 404 126 BETA Characteriz 328.65 A000201S04 3 6-Dec-02 9.90E+01 10 49 2200 0.227 404 126 BETA Characteriz 664.29 A000201S04 4 6-Dec-02 8.60E+01 10 49 2200 0.227 404 126 BETA Characteriz 391.58 A000201S04 5 6-Dec-02 7.80E+01 10 49 2200 0.227 404 126 BETA Characteriz 223.76 A000201S04 6 6-Dec-02 1.07E+02 10 49 2200 0.227 404 126 BETA Characteriz 832.11 A000201S04 7 6-Dec-02 1.07E+02 10 49 2200 0.227 404 126 BETA Characteriz 832.11 A000201S04 8 6-Dec-02 9.80E+01 10 49 2200 0.227 404 126 BETA Characteriz 643.31 A000201S04 9 6-Dec-02 7.90E+01 10 49 2200 0.227 404 126 BETA Characteriz 244.74 A000201S04 10 6-Dec-02 1.02E+02 10 49 2200 0.227 404 126 BETA Characteriz 727.22 A000201S04 11 6-Dec-02 8.70E+01 10 49 2200 0.227 404 126 BETA Characteriz 412.56 A000201S04 12 6-Dec-02 1.12E+02 10 49 2200 0.227 404 126 BETA Characteriz 937.00 A000201S04 13 6-Dec-02 1.05E+02 10 49 2200 0.227 404 126 BETA Characteriz 790.15 A000201S04 14 6-Dec-02 8.90E+01 10 49 2200 0.227 404 126 BETA Characteriz 454.51 A000201S04 15 6-Dec-02 8.80E+01 10 49 2200 0.227 404 126 BETA Characteriz 433.54 A000201S04 16 6-Dec-02 6.50E+01 10 49 2200 0.227 404 126 BETA Characteriz -48.95 A000201S04 17 6-Dec-02 8.20E+01 10 49 2200 0.227 404 126 BETA Characteriz 307.67 A000201S04 18 6-Dec-02 6.00E+01 10 49 2200 0.227 404 126 BETA Characteriz -153.84 Page 9 of 50

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I' 1 C C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (e/d) (Cpm) Area Measurem SurveyTyp dpm/100cm2 A000201S04 19 6-Dec-02 8.30E+01 10 49 2200 0.227 404 126 BETA Characteriz 328.65 A000201S04 20 6-Dec-02 9.OOE+01 10 49 2200 0.227 404 126 BETA Characteriz 475.49 A000201S04 21 6-Dec-02 7.70E+01 10 49 2200 0.227 404 126 BETA Characteriz 202.78 A000201S04 22 6-Dec-02 9.00E+01 10 49 2200 0.227 404 126 BETA Characteriz 475.49 A000201S04 23 6-Dec-02 8.20E+01 10 49 2200 0.227 404 126 BETA Characteriz 307.67 A000201S04 24 6-Dec-02 9.80E+01 10 49 2200 0.227 404 126 BETA Characteriz 643.31 A000201S04 25 6-Dec-02 1.03E+02 10 49 2200 0.227 404 126 BETA Characteriz 748.20 A000201S04 26 6-Dec-02 7.50E+01 10 49 2200 0.227 404 126 BETA Characteriz 160.83 A000201S04 27 6-Dec-02 8.40E+01 10 49 2200 0.227 404 126 BETA Characteriz 349.63 A000201S04 28 6-Dec-02 9.80E+01 10 49 2200 0.227 404 126 BETA Characteriz 643.31 A000201S04 29 6-Dec-02 1.23E+02 10 49 2200 0.227 554 126 BETA Characteriz 643.31 A000201S04 30 6-Dec-02 1.1OE+02 10 49 2200 0.227 554 126 BETA Characteriz 370.60 A000201S04 32 6-Dec-02 1.75E+02 10 49 2200 0.227 554 126 BETA Characteriz 1734.14 Statistical Summar y dpm/100 cm^2 Number Maximum Mean Std Dev 31 1734 508 343 A000201T01 5 3-Dec-02 1.77E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 142.05 A000201T01 6 3-Dec-02 1.80E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 177.57 A000201T01 7 3-Dec-02 2.13E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 568.22 A000201T01 8 3-Dec-02 2.02E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 438.00 A000201T01 9 3-Dec-02 1.81E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 189.41 A000201T01 10 3-Dec-02 1.64E+02 300 37 2000 0.109 33 15.5 BETA Characteriz -11.84 A000201T01 11 3-Dec-02 1.81E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 189.41 A000201T01 12 3-Dec-02 1.86E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 248.59 A000201T01 13 3-Dec-02 1.96E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 366.97 A000201T01 14 3-Dec-02 2.16E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 603.73 Statistical Summar y dpm/100 CmA2 Number Maximum Mean Std Dev 10 604 282 198 Page 10 of 50

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( C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/100cm 2 A000201T02 15 3-Dec-02 2.61E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 1136.43 A000201T02 16 3-Dec-02 1.71E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 71.03 A000201T02 17 3-Dec-02 1.97E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 378.81 A000201T02 18 3-Dec-02 2.20E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 651.08 A000201T02 19 3-Dec-02 2.26E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 722.11 A000201T02 20 3-Dec-02 1.96E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 366.97 A000201T02 21 3-Dec-02 1.84E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 224.92 A000201T02 22 3-Dec-02 2.34E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 816.81 A000201T02 23 3-Dec-02 2.42E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 911.51 A000201T02 24 3-Dec-02 2.70E+02 300 37 2000 0.109 33 15.5 BETA Characteriz 1242.97 Statistical Summary dpm/1OO cm^2 Number Maximum Mean Std Dev 10 1243 304 389 A000201W01 33 20-Nov-02 4.40E+01 10 21 2200 0.222 283 126 BETA Characteriz -67.93 A000201W01 34 20-Nov-02 5.70E+01 10 21 2200 0.222 283 126 BETA Characteriz 210.93 A000201W01 35 20-Nov-02 7.OOE+01 10 21 2200 0.222 290 126 BETA Characteriz 464.75 A000201W01 36 20-Nov-02 7.80E+01 10 21 2200 0.222 290 126 BETA Characteriz 636.35 A000201W01 37 20-Nov-02 7.OOE+01 10 21 2200 0.222 290 126 BETA Characteriz 464.75 A000201WO1 38 20-Nov-02 6.50E+01 10 21 2200 0.222 290 126 BETA Characteriz 357.50 A000201W01 39 20-Nov-02 8.20E+01 10 21 2200 0.222 283 126 BETA Characteriz 747.18 A000201W01 40 20-Nov-02 4.40E+01 10 21 2200 0.222 283 126 BETA Characteriz -67.93 A000201WO1 41 20-Nov-02 4.70E+01 10 21 2200 0.222 283 126 BETA Characteriz -3.58 A000201W01 42 20-Nov-02 7.40E+01 10 21 2200 0.222 290 126 BETA Characteriz 550.55 A000201WO1 43 20-Nov-02 5.00E+01 10 21 2200 0.222 283 126 BETA Characteriz 60.78 A000201W01 44 20-Nov-02 8.10E+01 10 21 2200 0.222 290 126 BETA Characteriz 700.70 A000201W01 45 20-Nov-02 6.50E+01 10 21 2200 0.222 290 126 BETA Characteriz 357.50 A000201WO1 46 20-Nov-02 7.60E+01 10 21 2200 0.222 290 126 BETA Characteriz 593.45 A000201W01 47 20-Nov-02 7.80E+01 10 21 2200 0.222 290 126 BETA Characteriz 636.35 A000201WO1 48 20-Nov-02 6.00E+01 10 21 2200 0.222 290 126 BETA Characteriz

250.25 A000201WO1 49 20-Nov-02 7.00E+01 10 21 2200 0.222 283 126 BETA Characteriz 489.78 Page 11 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 A000201WO1 50 20-Nov-02 6.40E+01 10 21 2200 0.222 283 126 BETA Characteriz 361.08 A000201W02 52 20-Nov-02 5.30E+01 10 21 2200 0.222 283 126 BETA Characteriz 125.13 A000201W02 53 20-Nov-02 4.80E+01 10 21 2200 0.222 245 126 BETA Characteriz 153.73 A000201W02 54 20-Nov-02 6.60E+01 10 21 2200 0.222 245 126 BETA Characteriz 539.83 A000201W02 55 20-Nov-02 5.40E+01 10 21 2200 0.222 245 126 BETA Characteriz 282.43 A000201W02 56 20-Nov-02 7.OOE+01 10 21 2200 0.222 245 126 BETA Characteriz 625.63 A000201W02 57 20-Nov-02 7.50E+01 10 21 2200 0.222 245 126 BETA Characteriz 732.88 A000201W02 58 20-Nov-02 7.30E+01 10 21 2200 0.222 245 126 BETA Characteriz 689.98 A000201W02 59 20-Nov-02 4.80E+01 10 21 2200 0.222 245 126 BETA Characteriz 153.73 A000201W02 60 20-Nov-02 4.70E+01 10 21 2200 0.222 245 126 BETA Characteriz 132.28 A000201W02 61 20-Nov-02 4.30E+01 10 21 2200 0.222 245 126 BETA Characteriz 46.48 A000201W02 62 20-Nov-02 5.10E+01 10 21 2200 0.222 245 126 BETA Characteriz 218.08 A000201W02 63 20-Nov-02 5.00E+01 10 21 2200 0.222 283 126 BETA Characteriz 60.78 A000201W02 64 20-Nov-02 5.50E+01 10 21 2200 0.222 245 126 BETA Characteriz 303.88 A000201W02 65 20-Nov-02 6.10E+01 10 21 2200 0.222 283 126 BETA Characteriz 296.73 A000201W02 66 20-Nov-02 7.30E+01 10 21 2200 0.222 245 126 BETA Characteriz 689.98 A000201W02 67 20-Nov-02 6.40E+01 10 21 2200 0.222 245 126 BETA Characteriz 496.93 A000201W02 68 20-Nov-02 7.OOE+01 10 21 2200 0.222 245 126 BETA Characteriz 625.63 A000201W02 69 20-Nov-02 5.80E+01 10 21 2200 0.222 245 126 BETA Characteriz 368.23 A000201W02 70 20-Nov-02 5.OOE+01 10 21 2200 0.222 245 126 BETA Characteriz 196.63 A000201W02 71 20-Nov-02 4.70E+01 10 21 2200 0.222 245 126 BETA Characteriz 132.28 A000201W02 72 20-Nov-02 4.40E+01 10 21 2200 0.222 283 126 BETA Characteriz -67.93 A000201W02 73 20-Nov-02 6.10E+01 10 21 2200 0.222 245 126 BETA Characteriz 432.58 A000201W02 74 20-Nov-02 6.70E+01 10 21 2200 0.222 245 126 BETA Characteriz 561.28 A000201W02 75 20-Nov-02 7.OOE+01 10 21 2200 0.222 283 126 BETA Characteriz 489.78 A000201W03 77 20-Nov-02 7.50E+01 10 21 2200 0.222 329 126 BETA Characteriz 432.58 A000201W03 78 20-Nov-02 6.30E+01 10 21 2200 0.222 283 126 BETA Characteriz 339.63 A000201W03 79 20-Nov-02 6.OOE+01 10 21 2200 0.222 329 126 BETA Characteriz 110.83 A000201W03 80 20-Nov-02 7.10E+01 10 21 2200 0.222 329 126 BETA Characteriz 346.78 A000201W03 81 20-Nov-02 7.40E+01 10 21 2200 0.222 329 126 BETA Characteriz 411.13 A000201W03 82 20-Nov-02 6.20E+01 10 21 2200 0.222 290 126 BETA Characteriz 293.15 Page 12 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/l1Ocm' A000201W03 83 20-Nov-02 7.OOE+01 10 21 2200 0.222 290 126 BETA Characteriz 464.75 A000201W03 84 20-Nov-02 4.30E+01 10 21 2200 0.222 283 126 BETA Characteriz -89.38 A000201W03 85 20-Nov-02 6.70E+01 10 21 2200 0.222 329 126 BETA Characteriz 260.98 A000201W03 86 20-Nov-02 7.00E+01 10 21 2200 0.222 329 126 BETA Characteriz 325.33 A000201W03 87 20-Nov-02 5.80E+01 10 21 2200 0.222 245 126 BETA Characteriz 368.23 A000201W03 88 20-Nov-02 6.10E+01 10 21 2200 0.222 329 126 BETA Characteriz 132.28 A000201W03 89 20-Nov-02 7.30E+01 10 21 2200 0.222 283 126 BETA Characteriz 554.13 A000201W03 90 20-Nov-02 8.30E+01 10 21 2200 0.222 329 126 BETA Characteriz 604.18 A000201W03 91 20-Nov-02 8.10E+01 10 21 2200 0.222 329 126 BETA Characteriz 561.28 A000201W03 92 20-Nov-02 7.80E+01 10 21 2200 0.222 329 126 BETA Characteriz 496.93 A000201W03 93 20-Nov-02 6.30E+01 10 21 2200 0.222 283 126 BETA Characteriz 339.63 A000201WO3 94 20-Nov-02 8.60E+01 10 21 2200 0.222 290 126 BETA Characteriz 807.95 A000201W03 95 20-Nov-02 4.10E+01 10 21 2200 0.222 283 126 BETA Characteriz -132.28 A000201W03 96 20-Nov-02 6.00E+01 10 21 2200 0.222 329 126 BETA Characteriz 110.83 A000201W03 97 20-Nov-02 6.70B+01 10 21 2200 0.222 329 126 BETA Characteriz 260.98 A000201W03 98 20-Nov-02 7.10E+01 10 21 2200 0.222 245 126 BETA Characteriz 647.08 A000201W04 17 20-Nov-02 6.00E+01 10 21 2200 0.222 283 126 BETA Characteriz 275.28 A000201W04 20 20-Nov-02 4. 10E+01 10 21 2200 0.222 287 126 BETA Characteriz -146.58 A000201W04 21 20-Nov-02 3.80E+01 10 21 2200 0.222 283 126 BETA Characteriz -196.63 A000201W04 22 20-Nov-02 5.10E+01 10 21 2200 0.222 283 126 BETA Characteriz 82.23 A000201W04 23 20-Nov-02 4.80E+01 10 21 2200 0.222 283 126 BETA Characteriz 17.88 A000201W04 24 20-Nov-02 3.80E+01 10 21 2200 0.222 283 126 BETA Characteriz -196.63 A000201W04 25 20-Nov-02 4.70E+01 10 21 2200 0.222 287 126 BETA Characteriz -17.88 A000201W04 26 20-Nov-02 5.50E+01 10 21 2200 0.222 287 126 BETA Characteriz 153.73 A000201W04 27 20-Nov-02 4.00E+01 10 21 2200 0.222 283 126 BETA Characteriz -153.73 A000201W04 28 20-Nov-02 6.60E+01 10 21 2200 0.222 290 126 BETA Characteriz 378.95 A000201W04 29 20-Nov-02 7.90E+01 10 21 2200 0.222 283 126 BETA Characteriz 682.83 A000201W04 30 20-Nov-02 6.30E+01 10 21 2200 0.222 283 126 BETA Characteriz 339.63 A000201W04 31 20-Nov-02 3.70E1+01 10 21 2200 0.222 283 126 BETA Characteriz -218.08 A000201W04 32 20-Nov-02 4.70E+01 10 21 2200 0.222 283 126 BETA Characteriz -3.58 A000201W04 5 20-Nov-02 4.80E+01 10 21 2200 0.222 283 126 BETA Characteriz 17.88 Page 13 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efciency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 A000201W04 6 20-Nov-02 4.00E+01 10 21 2200 0.222 283 126 BETA Characteriz -153.73 A000201W04 7 20-Nov-02 3.90E+01 10 21 2200 0.222 283 126 BETA Characteriz -175.18 A000201W04 8 20-Nov-02 5.30E+01 10 21 2200 0.222 283 126 BETA Characteriz 125.13 A000201W04 9 20-Nov-02 4.90E+01 10 21 2200 0.222 283 126 BETA Characteriz 39.33 A000201W04 10 20-Nov-02 4.60E+01 10 21 2200 0.222 287 126 BETA Characteriz -39.33 A000201W04 11 20-Nov-02 5.90E+01 10 21 2200 0.222 287 126 BETA Characteriz 239.53 A000201W04 12 20-Nov-02 3.40E+01 10 21 2200 0.222 283 126 BETA Characteriz -282.43 A000201W04 13 20-Nov-02 5.90E+01 10 21 2200 0.222 290 126 BETA Characteriz 228.80 A000201W04 14 20-Nov-02 8.00E+01 10 21 2200 0.222 283 126 BETA Characteriz 704.28 A000201W04 15 20-Nov-02 4.70E+01 10 21 2200 0.222 283 126 BETA Characteriz -3.58 A000201W04 16 20-Nov-02 3.90E+01 10 21 2200 0.222 283 126 BETA Characteriz -175.18 Statistical Summary dpm/100 cm^2 Number Maximum Mean Std Dev 90 808 269 278 A000301D01 65 22-Nov-02 1.78E+02 30 25 2200 0.216 283 126 BETA Characteriz 268.22 A000301F01 5 24-Nov-02 1.49E+02 30 27 2200 0.211 402 126 BETA Characteriz -391.18 A000301FO1 7 24-Nov-02 1.79E+02 30 27 2200 0.211 402 126 BETA Characteriz -165.50 A000301F01 9 24-Nov-02 1.59E+02 30 27 2200 0.211 292 126 BETA Characteriz 97.80 A000301F01 11 24-Nov-02 1.49E+02 30 27 2200 0.211 290 126 BETA Characteriz 30.09 A000301FO1 13 24-Nov-02 1.53E+02 30 27 2200 0.211 280 126 BETA Characteriz 97.80 A000301F01 15 24-Nov-02 1.71E+02 30 27 2200 0.211 322 126 BETA Characteriz 75.23 A000301F01 17 24-Nov-02 4.28E+02 30 27 2200 0.211 888 126 BETA Characteriz -120.36 A000301F01 19 24-Nov-02 2.71E+02 30 27 2200 0.211 560 126 BETA Characteriz -67.70 Statistical Summar ry dpm/100 CmA2 Number Maximum Mean Std Dev 8 98 -55 169 A000301SOI 5 22-Nov-02 2.36E+02 30 25 2200 0.216 338 126 BETA Characteriz 492.36 Page 14 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efclency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 A000301SO1 6 22-Nov-02 4.78E+02 30 25 2200 0.216 770 126 BETA Characteriz 683.42 A000301SO1 7 22-Nov-02 2.07E+02 30 25 2200 0.216 426 126 BETA Characteriz -44.09 A000301SO1 8 22-Nov-02 2.32E+02 30 25 2200 0.216 336 126 BETA Characteriz 470.31 A000301SO1 9 22-Nov-02 1.74E+03 30 25 2200 0.216 3356 126 BETA Characteriz 433.57 A000301SO1 10 22-Nov-02 1.48E+03 30 25 2200 0.216 2772 126 BETA Characteriz 705.47 A000301SO1 11 22-Nov-02 2.11E+02 30 25 2200 0.216 366 126 BETA Characteriz 205.76 A000301SO1 12 22-Nov-02 1.76E+02 30 25 2200 0.216 302 126 BETA Characteriz 183.72 A000301SO1 13 22-Nov-02 1.84E+02 30 25 2200 0.216 316 126 BETA Characteriz 191.06 A000301SO1 14 22-Nov-02 1.81E+02 30 25 2200 0.216 374 126 BETA Characteriz -44.09 A000301SO1 15 22-Nov-02 2.30E+02 30 25 2200 0.216 338 126 BETA Characteriz 448.27 A000301SO1 16 22-Nov-02 2.1 1E+02 30 25 2200 0.216 284 126 BETA Characteriz 507.05 A000301SO1 17 22-Nov-02 1.96E+02 30 25 2200 0.216 396 126 BETA Characteriz -14.70 A000301SO1 18 22-Nov-02 2.55E+02 30 25 2200 0.216 348 126 BETA Characteriz 595.24 A000301SO1 19 22-Nov-02 2.64E+02 30 25 2200 0.216 402 126 BETA Characteriz 462.96 A000301SO1 20 22-Nov-02 2.04E+02 30 25 2200 0.216 292 126 BETA Characteriz 426.22 A000301SO1 21 22-Nov-02 2.45E+02 30 25 2200 0.216 334 126 BETA Characteriz 573.19 A000301SO1 22 22-Nov-02 2.17E+02 30 25 2200 0.216 298 126 BETA Characteriz 499.71 A000301SO1 23 22-Nov-02 1.93E+02 30 25 2200 0.216 270 126 BETA Characteriz 426.22 A000301SO1 24 22-Nov-02 2.06E+02 30 25 2200 0.216 344 126 BETA Characteriz 249.85 A000301SO1 25 22-Nov-02 4.43E+02 30 25 2200 0.216 754 126 BETA Characteriz 485.01 A000301SO1 26 22-Nov-02 3.34E+02 30 25 2200 0.216 546 126 BETA Characteriz 448.27 A000301SO1 27 22-Nov-02 2.35E+02 30 25 2200 0.216 332 126 BETA Characteriz 507.05 A000301SO1 28 22-Nov-02 2.78E+02 30 25 2200 0.216 344 126 BETA Characteriz 778.95 A000301SO1 29 22-Nov-02 2.84E+02 30 25 2200 0.216 366 126 BETA Characteriz 742.21 A000301SO1 30 22-Nov-02 2.1SE+02 30 25 2200 0.216 298 126 BETA Characteriz 485.01 A000301SO1 31 22-Nov-02 2.17E+02 30 25 2200 0.216 404 126 BETA Characteriz 110.23 A000301SO1 32 22-Nov-02 2.83E+02 30 25 2200 0.216 444 126 BETA Characteriz 448.27 A000301SO1 33 22-Nov-02 2.41E+02 30 25 2200 0.216 606 126 BETA Characteriz -455.61 A000301SO1 34 22-Nov-02 3.58E+02 30 25 2200 0.216 606 126 BETA Characteriz 404.17 Statistical Summary dpm/100 CMA2 Number Maximum Mean Std Dev Page 15 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Meanurements Count Sample Logged Time Raw Efclency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 30 779 380 269 A000301WO1 21 24-Nov-02 1.74E+02 30 27 2200 0.211 296 126 BETA Characteriz 195.59 A000301W01 23 24-Nov-02 2.16E+02 30 27 2200 0.211 344 126 BETA Characteriz 331.00 A000301WO1 25 24-Nov-02 5.81E+02 30 27 2200 0.211 1078 126 BETA Characteriz 315.96 A000301W01 27 24-Nov-02 4.28E+02 30 27 2200 0.211 800 126 BETA Characteriz 210.64 A000301WO1 29 24-Nov-02 1.48E+02 30 27 2200 0.211 294 126 BETA Characteriz 7.52 A000301WO1 31 24-Nov-02 1.69E+02 30 27 2200 0.211 388 126 BETA Characteriz -188.07 A000301W01 33 24-Nov-02 3.38E+02 30 27 2200 0.211 630 126 BETA Characteriz 173.02 A000301W01 35 24-Nov-02 4.04E+02 30 27 2200 0.211 700 126 BETA Characteriz 406.23 A000301W02 37 24-Nov-02 2.45E+02 30 27 2200 0.211 498 126 BETA Characteriz -30.09 A000301W02 39 24-Nov-02 1.16E+02 30 27 2200 0.211 316 126 BETA Characteriz -315.96 A000301W02 41 24-Nov-02 3.66E+02 30 27 2200 0.211 688 126 BETA Characteriz 165.50 A000301W02 43 24-Nov-02 1.54E+02 30 27 2200 0.211 280 126 BETA Characteriz 105.32 A000301W03 45 24-Nov-02 1.94E+02 30 27 2200 0.211 332 126 BETA Characteriz 210.64 A000301W03 47 24-Nov-02 1.90E+02 30 27 2200 0.211 364 126 BETA Characteriz 60.18 A000301W03 49 24-Nov-02 1.51E+02 30 27 2200 0.211 302 126 BETA Characteriz 0.00 A000301W03 51 24-Nov-02 1.38E+02 30 27 2200 0.211 248 126 BETA Characteriz 105.32 A000301W03 53 24-Nov-02 1.38E+02 30 27 2200 0.211 250 126 BETA Characteriz 97.80 A000301W03 55 24-Nov-02 1.43E+02 30 27 2200 0.211 254 126 BETA Characteriz 120.36 A000301W03 57 24-Nov-02 1.85E+02 30 27 2200 0.211 368 126 BETA Characteriz 7.52 A000301W03 59 24-Nov-02 1.70E+02 30 27 2200 0.211 308 126 BETA Characteriz 120.36 A000301W04 61 24-Nov-02 1.28E+02 30 27 2200 0.211 284 126 BETA Characteriz -105.32 A000301W04 63 24-Nov-02 1.45E+02 30 27 2200 0.211 314 126 BETA Characteriz -90.27 A000301W04 65 24-Nov-02 1.40E+02 30 27 2200 0.211 278 126 BETA Characteriz 7.52 A000301W04 67 24-Nov-02 1.45E+02 30 27 2200 0.211 290 126 BETA Characteriz 0.00 Statistical Summary dpm/100 cmA2 Number Maximum Mean Std Dev 24 406 80 165 A000302F01 3 25-Nov-02 6.50E+01 10 31 2200 0.211 266 126 BETA Characteriz 466.41 Page 16 of 50

C- . I ' ' ;' I.' II C C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged T1me Raw EMdency Background Instrument Location Number Date Count (see) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 A000302F01 4 25-Nov-02 4.60E+01 10 31 2200 0.211 266 126 BETA Characteriz 37.61 A000302F01 S 25-Nov-02 4.70E+01 10 31 2200 0.211 266 126 BETA Characteriz 60.18 A000302F01 6 25-Nov-02 4.50E+01 10 31 2200 0.211 266 126 BETA Characteriz 15.05 A000302F01 7 25-Nov-02 4.20E+01 10 31 2200 0.211 266 126 BETA Characteriz -52.66 A000302F01 8 25-Nov-02 5.1OE+01 10 31 2200 0.211 266 126 BETA Characteriz 150.46 A000302F01 9 25-Nov-02 5.40E+01 10 31 2200 0.211 266 126 BETA Characteriz 218.16 A000302F01 10 25-Nov-02 5.10E+01 10 31 2200 0.211 266 126 BETA Characteriz 150.46 A000302F01 11 25-Nov-02 4.90E+01 10 31 2200 0.211 266 126 BETA Characteriz 105.32 A000302F01 12 25-Nov-02 4.70E+01 10 31 2200 0.211 266 126 BETA Characteriz 60.18 A000302F01 13 25-Nov-02 5.60E+01 10 31 2200 0.211 266 126 BETA Characteriz 263.30 A000302F01 14 25-Nov-02 5.10E+01 10 31 2200 0.211 266 126 BETA Characteriz 150.46 A000302F01 15 25-Nov-02 5.10E+01 10 31 2200 0.211 266 126 BETA Characteriz 150.46 A000302F01 16 25-Nov-02 5.00E+01 10 31 2200 0.211 266 126 BETA Characteriz 127.89 A000302F01 17 25-Nov-02 6.20E+01 10 31 2200 0.211 266 126 BETA Characteriz 398.71 A000302F01 18 25-Nov-02 4.10E+01 10 31 2200 0.211 266 126 BETA Characteriz -75.23 A000302F01 19 25-Nov-02 7.70E+01 10 31 2200 0.211 266 126 BETA Characteriz 737.23 A000302F01 20 25-Nov-02 4.40E+01 10 31 2200 0.211 266 126 BETA Characteriz -7.52 A000302F01 21 25-Nov-02 5.70E+01 10 31 2200 0.211 266 126 BETA Characteriz 285.86 A000302F01 22 25-Nov-02 3.80E+01 10 31 2200 0.211 266 126 BETA Characteriz -142.93 A000302F01 23 25-Nov-02 4.50E+01 10 31 2200 0.211 266 126 BETA Characteriz 15.05 A000302F01 24 25-Nov-02 6.70E+01 10 31 2200 0.211 266 126 BETA Characteriz 511.55 A000302F01 25 25-Nov-02 5.60E+01 10 31 2200 0.211 266 126 BETA Characteriz 263.30 A000302F01 26 25-Nov-02 5.50E+01 10 31 2200 0.211 266 126 BETA Characteriz 240.73 A000302F01 27 25-Nov-02 5.40E+01 10 31 2200 0.211 266 126 BETA Characteriz 218.16 A000302F01 28 25-Nov-02 5.70E+01 10 31 2200 0.211 266 126 BETA Characteriz 285.86 A000302F01 29 25-Nov-02 4.60E+01 10 31 2200 0.211 266 126 BETA Characteriz 37.61 A000302F01 30 25-Nov-02 5.10E+01 10 31 2200 0.211 266 126 BETA Characteriz 150.46 Statistical Summary dpm/100 CmA2 Number Maximum Mean Std Dev 28 737 172 191 Page 17 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Meanurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) FIle Det Type (e/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 A000302S01 65 25-Nov-02 4.60E+01 10 31 2200 0.211 266 126 BETA Characteriz 37.61 A000302S01 66 25-Nov-02 4.80E+01 10 31 2200 0.211 266 126 BETA Characteriz 82.75 A000302S01 67 25-Nov-02 4.50E+01 10 31 2200 0.211 266 126 BETA Characteriz 15.05 A000302S01 68 25-Nov-02 4.70E+01 10 31 2200 0.211 266 126 BETA Characteriz 60.18 A000302S01 69 25-Nov-02 3.24E+03 10 31 2200 0.211 266 126 BETA Characteriz 72210.94 Statistical Summary dpm/100 CmA2 lumber Maximum Mean Std Dev 5 72211 14481 32272 A000302S02 70 25-Nov-02 5.00E+01 10 31 2200 0.211 266 126 BETA Characteriz 127.89 A000302S02 71 25-Nov-02 3.70E+01 10 31 2200 0.211 266 126 BETA Characteriz -165.50 A000302S02 72 25-Nov-02 5.90E+01 10 31 2200 0.211 266 126 BETA Characteriz 331.00 A000302S02 73 25-Nov-02 4.10E+01 10 31 2200 0.211 266 126 BETA Characteriz -75.23 A000302S02 74 25-Nov-02 7.10E+01 10 31 2200 0.211 266 126 BETA Characteriz 601.82 Statistical Summar dpm/100 CmA2 Number Maximum Mean Std Dev 5 602 164 311 A000302S03 1 3-Dec-02 3.60E+01 10 39 2200 0.218 290 126 BETA Characteriz -269.40 A000302S03 2 3-Dec-02 5.40E+01 10 39 2200 0.218 290 126 BETA Characteriz 123.78 A000302S03 3 3-Dec-02 4.40E+01 10 39 2200 0.218 290 126 BETA Characteriz -94.66 A000302S03 4 3-Dec-02 4.50E+01 10 39 2200 0.218 290 126 BETA Characteriz -72.81 A000302S03 5 3-Dec-02 4.90E+01 10 39 2200 0.218 290 126 BETA Characteriz 14.56 Statistical Summar y dpm/100 CmA2 Number Maximum Mean Std Dev 5 124 -60 145 A000302S04 6 3-Dec-02 3.60E+01 10 39 2200 0.218 290 126 BETA Characteriz -269.40 A000302S04 7 3-Dec-02 4.40E+01 10 39 2200 0.218 290 126 BETA Characteriz -94.66 A000302S04 8 3-Dec-02 4.50E+01 10 39 2200 0.218 290 126 BETA Characteriz -72.81 A000302S04 9 3-Dec-02 5.00E+01 10 39 2200 0.218 290 126 BETA Characteriz 36.41 Page 18 of 50

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%r F . .# - tri 1 r . f I, : T .1? K 0 Attachment 6: Summary of Total Surface Contaminatin Beta Mea$urements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) FHle Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 A000302S04 10 3-Dec-02 5.OOE+01 10 39 2200 0.218 290 126 BETA Characteriz 36.41 A000302S04 11 3-Dec-02 4.90E+01 10 39 2200 0.218 290 126 BETA Characteriz 14.56 A000302S04 12 3-Dec-02 5.50E+01 10 39 2200 0.218 290 126 BETA Characteriz 145.62 A000302S04 13 3-Dec-02 3.30E+01 10 39 2200 0.218 290 126 BETA Characteriz -334.94 A000302S04 14 3-Dec-02 6.70E+01 10 39 2200 0.218 290 126 BETA Characteriz 407.75 A000302S04 15 3-Dec-02 5.OOE+01 10 39 2200 0.218 290 126 BETA Characteriz 36.41 Statistical Summary dpm/100 cm^2 Number Maximum Mean Std Dev 10 408 -9 208 A000302S05 16 3-Dec-02 4.30E+01 10 39 2200 0.218 290 126 BETA Characteriz -116.50 A000302S05 17 3-Dec-02 4.20E+01 10 39 2200 0.218 290 126 BETA Characteriz -138.34 A000302S05 18 3-Dec-02 4.80E+01 10 39 2200 0.218 290 126 BETA Characteriz -7.28 A000302S55 19 3-Dec-02 5.60E+01 10 39 2200 0.218 290 126 BETA Characteriz 167.47 A000302S50 20 3-Dec-02 5.80E+01 10 39 2200 0.218 290 126 BETA Characteriz 211.15 Statistical Summar ry dpm/100 cm^2 Number Maximum Mean Std Dev 5 211 23 160 A000302W01 31 25-Nov-02 5.60E+01 10 31 2200 0.211 266 126 BETA Characteriz 263.30 A000302W01 32 25-Nov-02 4.90E+01 10 31 2200 0.211 266 126 BETA Characteriz 105.32 A000302W01 33 25-Nov-02 4.40E+01 10 31 2200 0.211 266 126 BETA Characteriz -7.52 A000302W01 34 25-Nov-02 4.00E+01 10 31 2200 0.211 266 126 BETA Characteriz -97.80 A000302W01 35 25-Nov-02 4.30E+01 10 31 2200 0.211 266 126 BETA Characteriz -30.09 A000302W01 36 25-Nov-02 5.30E+01 10 31 2200 0.211 266 126 BETA Characteriz 195.59 A000302W01 37 25-Nov-02 2.60E+01 10 31 2200 0.211 266 126 BETA Characteriz -413.75 A000302W01 38 25-Nov-02 3.90E+01 10 31 2200 0.211 266 126 BETA Characteriz -120.36 A000302W01 39 25-Nov-02 6.00E+01 10 31 2200 0.211 266 126 BETA Characteriz 353.57 A000302W01 40 25-Nov-02 3.80E+01 10 31 2200 0.211 266 126 BETA Characteriz -142.93 A000302W02 41 25-Nov-02 3.60E+01 10 31 2200 0.211 266 126 BETA Characteriz -188.07 A000302W02 42 25-Nov-02 3.80E+01 10 31 2200 0.211 266 126 BETA Characteriz -142.93 Page 19 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 A000302W02 43 25-Nov-02 4.60E+01 10 31 2200 0.211 266 126 BETA Characteriz 37.61 A000302W02 44 25-Nov-02 3.90E+01 10 31 2200 0.211 266 126 BETA Charactenz -120.36 A000302W02 45 25-Nov-02 4.90E+01 10 31 2200 0.211 266 126 BETA Characteriz 105.32 A000302W02 46 25-Nov-02 4.90E+01 10 31 2200 0.211 .266 126 BETA Characteriz 105.32 A000302W02 47 25-Nov-02 9.20E+01 10 31 2200 0.211 266 126 BETA Characteriz 1075.75 A000302W03 48 25-Nov-02 5.00E+01 10 31 2200 0.211 266 126 BETA Characteriz 127.89 A000302W03 49 25-Nov-02 7.80E+01 10 31 2200 0.211 266 126 BETA Characteriz 759.80 A000302W03 50 25-Nov-02 5.OOE+01 10 31 2200 0.211 266 126 BETA Characteriz 127.89 A000302W03 51 25-Nov-02 4.90E+01 10 31 2200 0.211 266 126 BETA Characteriz 105.32 A000302W03 52 25-Nov-02 4.10E+01 10 31 2200 0.211 266 126 BETA Characteriz -75.23 A000302W03 53 25-Nov-02 5.60E+01 10 31 2200 0.211 266 126 BETA Characteriz 263.30 A000302W03 54 25-Nov-02 4.50E+01 10 31 2200 0.211 266 126 BETA Characteriz 15.05 A000302W03 55 25-Nov-02 6.30E+01 10 31 2200 0.211 266 126 BETA Characteriz 421.27 A000302W04 56 25-Nov-02 6.00E+01 10 31 2200 0.211 266 126 BETA Characteriz 353.57 A000302W04 57 25-Nov-02 9.70E+01 10 31 2200 0.211 266 126 BETA Characteriz 1188.60 A000302W04 58 25-Nov-02 6.50E+01 10 31 2200 0.211 266 126 BETA Characteriz 466.41 A000302W04 59 25-Nov-02 1.43E+02 10 31 2200 0.211 266 126 BETA Characteriz 2226.74 A000302W04 60 25-Nov-02 5.60E+01 10 31 2200 0.211 266 126 BETA Characteriz 263.30 A000302W04 61 25-Nov-02 5.1OE+01 10 31 2200 0.211 266 126 BETA Characteriz 150.46 A000302W04 62 25-Nov-02 5.30E+01 10 31 2200 0.211 266 126 BETA Characteriz 195.59 A000302W04 63 25-Nov-02 5.OOE+01 10 31 2200 0.211 266 126 BETA Characteriz 127.89 A000302W04 64 25-Nov-02 6.70E+01 10 31 2200 0.211 266 126 BETA Characteriz 511.55 Statistical ' Summary dpm/100 cm^2 Number Maximum Mean Std Dev 34 2227 241 484 A000401F01 5 07-Dec-02 5.02E+03 60 54 2200 0.229 494 126 BETA Characteriz 15682.40 A000401FO1 16 21-Dec-02 3.09E+02 30 60 2200 0.216 362 126 BETA Characteriz 940.62 A000401FO1 17 21-Dec-02 3.46E+02 30 60 2200 0.216 338 126 BETA Characteriz 1300.71 A000401FO1 18 21-Dec-02 3.43E+02 30 60 2200 0.216 414 126 BETA Characteriz 999.41 A000401FOI 19 21-Dec-02 3.14E+02 30 60 2200 0.216 388 126 BETA Characteriz 881.83 Page 20 of 50

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C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw E171ciency Background Instrument Location Number Date Count (see) File Det Type (e/d) (cpm) Area Measurem SurveyTyp dpmllOOcm 2 A000401FOI 20 21-Dec-02 3.10E+02 30 60 2200 0.216 354 126 BETA Characteriz 977.37 A000401FO0 21 21-Dec-02 2.77E+02 30 60 2200 0.216 384 126 BETA Characteriz 624.63 A000401F01 22 21-Dec-02 3.34E+02 30 60 2200 0.216 424 126 BETA Characteriz 896.53 A000401FOI 23 21-Dec-02 2.68E+02 30 60 2200 0.216 358 126 BETA Characteriz 654.03 A000401FOI 24 21-Dec-02 2.87E+02 30 60 2200 0.216 330 126 BETA Characteriz 896.53 A000401FOI 25 21-Dec-02 3.42E+02 30 60 2200 0.216 320 126 BETA Characteriz 1337.45 A000401FOI 26 21-Dec-02 3.32E+02 30 60 2200 0.216 412 126 BETA Characteriz 925.93 A000401F01 27 21-Dec-02 3.04E+02 30 60 2200 0.216 390 126 BETA Characteriz 801.00 Statistical Summar dpm/lOO cmA2 Number Maximum Mean Std Dev 13 15682 2071 4095 A000401POI 5 19-Dec-02 1.87E+02 30 57 2200 0.225 370 126 Beta Characteriz 14.11 A000401POI 6 19-Dec-02 1.98E+02 30 57 2200 0.225 370 126 Beta Characteriz 91.71 A000401POI 7 19-Dec-02 2.OOE+02 30 57 2200 0.225 370 126 Beta Characteriz 105.82 A000401POI 8 19-Dec-02 2.20E+02 30 57 2200 0.225 370 126 Beta Characteriz 246.91 A000401POI 9 19-Dec-02 1.92E+02 30 57 2200 0.225 370 126 Beta Characteriz 49.38 A000401POI 10 19-Dec-02 1.88E+02 30 57 2200 0.225 370 126 Beta Characteriz 21.16 A000401POI 11 19-Dec-02 1.95E+02 30 57 2200 0.225 370 126 Beta Characteriz 70.55 A000401POI 12 19-Dec-02 2.27E+02 30 57 2200 0.225 370 126 Beta Characteriz 296.30 A000401POl 13 19-Dec-02 1.81E+02 30 57 2200 0.225 370 126 Beta Characteriz -28.22 A000401POl 14 19-Dec-02 2.02E+02 30 57 2200 0.225 370 126 Beta Characteriz 119.93 A000401POI 15 19-Dec-02 1.97E+02 30 57 2200 0.225 370 126 Beta Characteriz 84.66 A000401POI 16 19-Dec-02 2.05E+02 30 57 2200 0.225 370 126 Beta Characteriz 141.09 A000401POI 17 19-Dec-02 1.86E+02 30 57 2200 0.225 370 126 Beta Characteriz 7.05 A000401POl 18 19-Dec-02 1.94E+02 30 57 2200 0.225 370 126 Beta Characteriz 63.49 A000401POI 19 19-Dec-02 2.20E+02 30 57 2200 0.225 370 126 Beta Characteriz 246.91 A000401POl 20 19-Dec-02 2.16E+02 30 57 2200 0.225 370 126 Beta Characteriz 218.69 A000401POI 21 19-Dec-02 2.46E+02 30 57 2200 0.225 370 126 Beta Characteriz 430.34 A000401POI 22 19-Dec-02 2.17E+02 30 57 2200 0.225 370 126 Beta Characteriz 225.75 A000401POI 23 19-Dec-02 2.20E1+02 30 57 2200 0.225 370 126 Beta Characteriz 246.91 Page 21 of 50

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C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (ed) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 A000401P01 24 19-Dec-02 2.27E+02 30 57 2200 0.225 370 126 Beta Characteriz 296.30 A000401PO1 25 19-Dec-02 1.94E+02 30 57 2200 0.225 370 126 Beta Characteriz 63.49 A000401P01 26 19-Dec-02 1.90E+02 30 57 2200 0.225 370 126 Beta Characteriz 35.27 A000401PO1 27 19-Dec-02 1.91E+02 30 57 2200 0.225 370 126 Beta Characteriz 42.33 A000401P01 28 19-Dec-02 2.22E+02 30 57 2200 0.225 370 126 Beta Characteriz 261.02 A000401P01 29 19-Dec-02 1.71E+02 30 57 2200 0.225 370 126 Beta Characteriz -98.77 A000401P01 30 19-Dec-02 1.92E+02 30 57 2200 0.225 370 126 Beta Characteriz 49.38 A000401PO1 31 19-Dec-02 1.92E+02 30 57 2200 0.225 370 126 Beta Characteriz 49.38 A000401P01 32 19-Dec-02 1.95E+02 30 57 2200 0.225 370 126 Beta Characteriz 70.55 A000401P01 33 19-Dec-02 2.06E+02 30 57 2200 0.225 370 126 Beta Characteriz 148.15 A000401PO1 34 19-Dec-02 2.02E+02 30 57 2200 0.225 370 126 Beta Characteriz 119.93 A000401P01 35 19-Dec-02 1.70E+02 30 57 2200 0.225 370 126 Beta Characteriz -105.82 A000401P01 36 19-Dec-02 2.15E+02 30 57 2200 0.225 370 126 Beta Characteriz 211.64 A000401P01 37 19-Dec-02 2.08E+02 30 57 2200 0.225 370 126 Beta Characteriz 162.26 A000401P01 38 19-Dec-02 2.08E+02 30 57 2200 0.225 370 126 Beta Characteriz 162.26 A000401P01 39 19-Dec-02 1.80E+02 30 57 2200 0.225 370 126 Beta Characteriz -35.27 A000401PO1 40 19-Dec-02 1.84E+02 30 57 2200 0.225 370 126 Beta Characteriz -7.05 A000401POI 41 19-Dec-02 2.01E+02 30 57 2200 0.225 370 126 Beta Characteriz 112.87 A000401P01 42 19-Dec-02 1.92E+02 30 57 2200 0.225 370 126 Beta Characteriz 49.38 A000401PO1 43 19-Dec-02 1.78E+02 30 57 2200 0.225 370 126 Beta Characteriz 49.38 A000401PO1 44 19-Dec-02 1.97E+02 30 57 2200 0.225 370 126 Beta Characteriz 84.66 A000401P01 45 19-Dec-02 2.13E+02 30 57 2200 0.225 370 126 Beta Characteriz 197.53 A000401P01 46 19-Dec-02 1.43E+03 30 57 2200 0.225 370 126 Beta Characteriz 8747.80 A000401PO1 47 19-Dec-02 2.17E+02 30 57 2200 0.225 370 126 Beta Characteriz 225.75.

A000401PO1 48 19-Dec-02 1.79E+02 30 57 2200 0.225 370 126 Beta Characteriz -42.33 A000401P01 49 19-Dec-02 1.75E+02 30 57 2200 0.225 370 126 Beta Characteriz -70.55 A000401P01 50 19-Dec-02 1.77E+02 30 57 2200 0.225 370 126 Beta Characteriz -56.44 A000401P01 51 19-Dec-02 1.95E+02 30 57 2200 0.225 370 126 Beta Characteriz 70.55 A000401P01 52 19-Dec-02 1.78E+02 30 57 2200 0.225 370 126 Beta Characteriz -49.38 A000401PO1 53 19-Dec-02 2.03E+02 30 57 2200 0.225 370 126 Beta Characteriz 126.98 A000401PO1 54 19-Dec-02 1.90E+02 30 57 2200 0.225 370 126 Beta Characteriz 35.27 Page 22 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 A000401P01 55 19-Dec-02 2.18E+02 30 57 2200 0.225 370 126 Beta Characteriz 232.80 A000401P01 56 19-Dec-02 1.89E+02 30 57 2200 0.225 370 126 Beta Characteriz 28.22 A000401P01 57 19-Dec-02 1.92E+02 30 57 2200 0.225 370 126 Beta Characteriz 49.38 A000401POI 58 19-Dec-02 2.24E+02 30 57 2200 0.225 370 126 Beta Characteriz 275.13 A000401POI 59 19-Dec-02 1.75E+02 30 57 2200 0.225 370 126 Beta Characteriz -70.55 A000401P01 60 19-Dec-02 2.09E+02 30 57 2200 0.225 370 126 Beta Characteriz 169.31 A000401P01 61 19-Dec-02 2.22E+02 30 57 2200 0.225 370 126 Beta Characteriz 261.02 A000401P01 62 19-Dec-02 1.9513+02 30 57 2200 0.225 370 126 Beta Characteriz 70.55 A000401PO1 63 19-Dec-02 1.72E+02 30 57 2200 0.225 370 126 Beta Characteriz -91.71 A000401P01 64 19-Dec-02 1.72E+02 30 57 2200 0.225 370 126 Beta Characteriz -91.71 A000401PO1 65 19-Dec-02 1.98E+02 30 57 2200 0.225 370 126 Beta Characteriz 91.71 A000401PO1 66 19-Dec-02 1.76E+02 30 57 2200 0.225 370 126 Beta Characteriz -63.49 A000401P01 67 19-Dec-02 1.65E+02 30 57 2200 0.225 370 126 Beta Characteriz -141.09 A00040P01 68 19-Dec-02 2.27E+02 30 57 2200 0.225 370 126 Beta Characteriz 296.30 Statistical Summary dpm/1OO cmA2 Number Maximum Mean Std Dev 64 8748 226 1089 A000401WO1 36 21-Dec-02 2.59E+02 30 60 2200 0.216 336 126 BETA Characteriz 668.72 A000401WO1 37 21-Dec-02 2.05E+02 30 60 2200 0.216 320 126 BETA Characteriz 330.69 A000401WO1 38 21-Dec-02 2.07E+02 30 60 2200 0.216 374 126 BETA Characteriz 146.97 A000401WO1 39 21-Dec-02 2.04E+02 30 60 2200 0.216 354 126 BETA Characteriz 198.41 A000401WOl 40 21-Dec-02 1.96E+02 30 60 2200 0.216 342 126 BETA Characteriz 183.72 A000401WO1 41 21-Dec-02 2.15E+02 30 60 2200 0.216 326 126 BETA Characteriz 382.13 A000401WO1 42 21-Dec-02 2.23E+02 30 60 2200 0.216 362 126 BETA Characteriz 308.64 A000401WOl 43 21-Dec-02 2.15E+02 30 60 2200 0.216 364 126 BETA Characteriz 242.50 A000401W02 50 21-Dec-02 2.09E+02 30 60 2200 0.216 330 126 BETA Characteriz 323.34 A000401W02 S1 21-Dec-02 2.06E+02 30 60 2200 0.216 376 126 BETA Characteriz 132.28 A000401W02 52 21-Dec-02 2.26E+02 30 60 2200 0.216 334 126 BETA Characteriz 433.57 A000401W02 53 21-Dec-02 2.19E+02 30 60 2200 0.216 366 126 BETA Characteriz 264.55 A000401W02 54 21-Dec-02 2.33E+02 30 60 2200 0.216 324 126 BETA Characteriz 521.75 Page 23 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efflciency Background Instrument Location Number Date Count (sec) FRle Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 A000401W02 55 21-Dec-02 2.23E+02 30 60 2200 0.216 364 126 BETA Characteriz 301.29 A000401W03 62 21-Dec-02 2.41E+02 30 60 2200 0.216 350 126 BETA Characteriz 485.01 A000401W03 63 21-Dec-02 2.3 1E+02 30 60 2200 0.216 306 126 BETA Characteriz 573.19 A000401W03 64 21-Dec-02 2.14E+02 30 60 2200 0.216 352 126 BETA Characteriz 279.25 A000401W03 65 21-Dec-02 2.23E+02 30 60 2200 0.216 362 126 BETA Characteriz 308.64 A000401W03 66 21-Dec-02 2.16E+02 30 60 2200 0.216 344 126 BETA Characteriz 323.34 A000401W03 67 21-Dec-02 2.07E+02 30 60 2200 0.216 340 126 BETA Characteriz 271.90 A000401WQ4 133 04-Dec02 7.82E+02 30 43 2200 0.227 1530 126 BETA Characteriz 118.87 A000401W04 135 04-Dec-02 5.55E+02 30 43 2200 0.227 964 126 BETA Characteriz 510.45 Statistical Summar 9 dpm/100 cm^2 Number Maximum Mean Std Dev 22 669 332 147 A000402F01 5 04-Dec-02 6.50E+01 10 43 2200 0.227 315 126 BETA Characteriz 262.22 A000402F01 6 04-Dec-02 5.60E+01 10 43 2200 0.227 315 126 BETA Characteriz 73.42 A000402F01 7 04-Dec-02 4.20E+01 10 43 2200 0.227 315 126 BETA Characteriz -220.26 A000402F01 8 04-Dec-02 5.50E+01 10 43 2200 0.227 315 126 BETA Characteriz 52.44 A000402F0I 9 04-Dec-02 5.30E+01 10 43 2200 0.227 315 126 BETA Characteriz 10.49 A000402F01 10 04-Dec-02 6.1OE+01 10 43 2200 0.227 315 126 BETA Characteriz 178.31 A000402F01 11 04-Dec-02 4.90E+01 10 43 2200 0.227 315 126 BETA Characteriz -73.42 A000402F01 12 04-Dec-02 6.OOE+01 10 43 2200 0.227 315 126 BETA Characteriz 157.33 A000402F01 13 04-Dec-02 4.60E+01 10 43 2200 0.227 315 126 BETA Characteriz -136.35 A000402F01 14 04-Dec-02 4.90E+01 10 43 2200 0.227 315 126 BETA Characteriz -73.42 A000402F01 15 04-Dec-02 4.30E+01 10 43 2200 0.227 315 126 BETA Characteriz -199.29 A000402F0I 16 04-Dec-02 4.90E+01 10 43 2200 0.227 315 126 BETA Characteriz -73.42 A000402F01 17 04-Dec-02 5.10E+01 10 43 2200 0.227 315 126 BETA Cbaracteriz -31.47 Statistical Summar y dpm/100 cmA2 Number Maximum Mean Std Dev 13 262 -6 146 A000402S01 48 04-Dec-02 4.90E+01 10 43 2200 0.227 315 126 BETA Characteriz -73.42 Page 24 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efflciency Background Instrument Location Number Date Count (sec) Fle Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 A000402S01 49 04-Dec-02 5.OOE+01 10 43 2200 0.227 315 126 BETA Characteriz -52.44 A000402S01 50 04-Dec-02 5.10E+01 10 43 2200 0.227 315 126 BETA Characteriz -31.47 A000402S01 51 04-Dec-02 4.90E+01 10 43 2200 0.227 315 126 BETA Characteriz -73.42 A000402S01 52 04-Dec-02 5.70E+01 10 43 2200 0.227 315 126 BETA Characteriz 94.40 Statistical Summar dpm/100 cmA2

.umber Maximum Mean Std Dev 5 94 -27 70 A000402S02 53 04-Dec-02 5.20E+01 10 43 2200 0.227 315 126 BETA Characteriz -10.49 A000402S02 54 04-Dec-02 5.00E+01 10 43 2200 0.227 315 126 BETA Characteriz -52.44 A000402S02 55 04-Dec-02 5.60E+01 10 43 2200 0.227 315 126 BETA Characteriz 73.42 A000402S02 56 04-Dec-02 6.10E+01 10 43 2200 0.227 315 126 BETA Characteriz 178.31 A000402S02 57 04-Dec-02 4.20E+01 10 43 2200 0.227 315 126 BETA Characteriz -220.26 Statistical Summar y dpm/100 cmA2 Number Maximum Mean Std Dev 5 178 -6 149 A000402S03 58 04-Dec-02 4.00E+01 10 43 2200 0.227 315 126 BETA Characteriz -262.22 A000402S03 59 04-Dec-02 3.60E+01 10 43 2200 0.227 315 126 BETA Characteriz -346.13 A000402S03 60 04-Dec-02 3.60E+01 10 43 2200 0.227 315 126 BETA Characteriz -346.13 A000402S03 61 04-Dec-02 4.40E+01 10 43 2200 0.227 315 126 BETA Characteriz -178.31 A000402S03 62 04-Dec-02 5.50E+01 10 43 2200 0.227 315 126 BETA Characteriz 52.44 A000402S03 63 04-Dec-02 5.60E+01 10 43 2200 0.227 315 126 BETA Characteriz 73.42 A000402S03 64 04-Dec-02 3.90E+01 10 43 2200 0.227 315 126 BETA Characteriz -283.20 A000402S03 65 04-Dec-02 6.00E+01 10 43 2200 0.227 315 126 BETA Characteriz 157.33 A000402S03 66 04-Dec-02 4.40E+01 10 43 2200 0.227 315 126 BETA Characteriz -178.31 A000402S03 67 04-Dec-02 5.00E+01 10 43 2200 0.227 315 126 BETA Characteriz -52.44 Statistical Summar y dpm/100 cmA2 Number Maximum Mean Std Dev 10 157 -136 183 Page 25 of 50

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10 vC Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 A000402W01 18 04-Dec-02 8.OOE+01 10 43 2200 0.227 315 126 BETA Characteriz 576.88 A000402W01 19 04-Dec-02 8.60E+01 10 43 2200 0.227 315 126 BETA Characteriz 702.75 A000402W01 20 04-Dec-02 6.40E+01 10 43 2200 0.227 315 126 BETA Characteriz 241.24 A000402W01 21 04-Dec-02 8.60E+01 10 43 2200 0.227 315 126 BETA Characteriz 702.75 A000402W01 22 04-Dec-02 7.40E+01 10 43 2200 0.227 315 126 BETA Characteriz 451.02 A000402W01 23 04-Dec-02 8.10E+01 10 43 2200 0.227 315 126 BETA Characteriz 597.86 A000402W01 24 04-Dec-02 7.70E+01 10 43 2200 0.227 315 126 BETA Characteriz 513.95 A000402W01 25 04-Dec-02 6.70E+01 10 43 2200 0.227 315 126 BETA Characteriz 304.17 A000402W01 26 04-Dec-02 6.10E+01 10 43 2200 0.227 315 126 BETA Characteriz 178.31 A000402W01 27 04-Dec-02 8.30E+01 10 43 2200 0.227 315 126 BETA Characteriz 639.82 A000402W02 28 04-Dec-02 6.40E+01 10 43 2200 0.227 315 126 BETA Characteriz 241.24 A000402W02 29 04-Dec-02 5.80E+01 10 43 2200 0.227 315 126 BETA Characteriz 115.38 A000402W02 30 04-Dec-02 5.30E+01 10 43 2200 0.227 315 126 BETA Characteriz 10.49 A000402W02 31 04-Dec-02 6.40E+01 10 43 2200 0.227 315 126 BETA Characteriz 241.24 A000402W02 32 04-Dec-02 4.40E+01 10 43 2200 0.227 315 126 BETA Characteriz -178.31 A000402W02 33 04-Dec-02 5.1OE+01 10 43 2200 0.227 315 126 BETA Characteriz -31.47 A000402W03 34 04-Dec-02 4.60E+01 10 43 2200 0.227 315 126 BETA Characteriz -136.35 A000402W03 35 04-Dec-02 3.90E+01 10 43 2200 0.227 315 126 BETA Characteriz -283.20 A000402W03 36 04-Dec-02 5.70E+01 10 43 2200 0.227 315 126 BETA Characteriz 94.40 A000402W03 37 04-Dec-02 4.40E+01 10 43 2200 0.227 315 126 BETA Characteriz -178.31 A000402W03 38 04-Dec-02 6.80E+01 10 43 2200 0.227 315 126 BETA Characteriz 325.15 A000402W03 39 04-Dec-02 6.30E+01 10 43 2200 0.227 315 126 BETA Characteriz 220.26 A000402W03 40 04-Dec-02 5.60E+01 10 43 2200 0.227 315 126 BETA Characteriz 73.42 A000402W03 41 04-Dec-02 4.60E+01 10 43 2200 0.227 315 126 BETA Characteriz -136.35 A000402W03 42 04-Dec-02 5.OOE+01 10 43 2200 0.227 315 126 BETA Characteriz -52.44 A000402W03 43 04-Dec-02 4.80E+01 10 43 2200 0.227 315 126 BETA Characteriz -94.40 A000402W04 44 04-Dc-02 5.70E+01 10 43 2200 0.227 315 126 BETA Characteriz 94.40 A000402W04 45 04-Dec-02 5.80E+01 10 43 2200 0.227 315 126 BETA Characteriz 115.38 A000402W04 46 04-Dec-02 6.30E+01 10 43 2200 0.227 315 126 BETA Characteriz 220.26 A000402W04 47 04-Dec-02 8.30E+01 10 43 2200 0.227 315 126 BETA Characteriz 639.82 Statistical Summary dpm/100 CmA2 Page 26 of 50

R- r i; ! *.r 1 1r C C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efclency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/100cm 2 Number Maximum Mean Std Dev 30 703 207 289 BOOOlOlFO1 10 25-Nov-02 6.20E+01 10 30 2200 0.234 343 126 BETA Characteriz 98.36 BO00O101F17 11 25-Nov-02 7.30E+01 10 30 2200 0.234 343 126 BETA Characteriz 322.21 13000101F01 12 25-Nov-02 4.70E+01 10 30 2200 0.234 343 126 BETA Characteriz -206.89 BOO0Ol1FO1 13 25-Nov-02 5.20E+01 10 30 2200 0.234 343 126 BETA Characteriz -105.14 B000101F01. 14 25-Nov-02 4.50E+01 10 30 2200 0.234 343 126 BETA Characteriz -247.59 B00010O1,O 15 25-Nov-02 3.80E+01 10 30 2200 0.234 343 126 BETA Characteriz -390.04 B000101FOl. 16 25-Nov-02 6.70E+01 10 30 2200 0.234 343 126 BETA Characteriz 200.11 13000101F01 17 25-Nov-02 7.00E+01 10 30 2200 0.234 343 126 BETA Characteriz 261.16 BO00O101FOl. 18 25-Nov-02 3.90E+01 10 30 2200 0.234 343 126 BETA Characteriz -369.69 BO00101F170 19 25-Nov-02 6.50E+01 10 30 2200 0.234 343 126 BETA Characteriz 159.41 BOO0lO1FO1 20 25-Nov-02 5.70E+01 10 30 2200 0.234 343 126 BETA Characteriz -3.39 BO0OOl1FO1 21 25-Nov-02 5.OOE+01 10 30 2200 0.234 343 126 BETA Characteriz -145.84 BOOOIOIFOI 22 25-Nov-02 5.90E+01 10 30 2200 0.234 343 126 BETA Characteriz 37.31 B000101FOl. 23 25-Nov-02 5.40E+01 10 30 2200 0.234 343 126 BETA Characteriz -64.44 BO0OI10F01 24 25-Nov-02 5.30E+01 10 30 2200 0.234 343 126 BETA Characteriz -84.79 B000101FOI 25 25-Nov-02 5.20E+01 10 30 2200 0.234 343 126 BETA Characteriz -105.14 BOO0l0lFO1 26 25-Nov-02 4.70E+01 10 30 2200 0.234 343 126 BETA Characteriz -206.89 B1000101F701. 27 25-Nov-02 5.20E+01 10 30 2200 0.234 343 126 BETA Characteriz -105.14 B000101F01. 28 25-Nov-02 4.90E+01 10 30 2200 0.234 343 126 BETA Characteriz -166.19 B000101FOI 29 25-Nov-02 6.50E+01 10 30 2200 0.234 343 126 BETA Characteriz 159.41 BOOOlOlFO1 30 25-Nov-02 7.70E+01 10 30 2200 0.234 343 126 BETA Characteriz 403.61 B000101F01, 31 25-Nov-02 6.20E+01 10 30 2200 0.234 343 126 BETA Characteriz 98.36 B000101F01 32 25-Nov-02 6.20E+01 10 30 2200 0.234 343 126 BETA Characteriz 98.36 BO0OOlIFO1 33 25-Nov-02 6.OOE+01 10 30 2200 0.234 343 126 BETA Characteriz 57.66 BO0OOl1FO1 34 25-Nov-02 6.20E+01 10 30 2200 0.234 343 126 BETA Characteriz 98.36 B000101F01. 35 25-Nov-02 6.90E+01 10 30 2200 0.234 343 126 BETA Characteriz 240.81 B000101FOI 36 25-Nov-02 4.80E+01 10 30 2200 0.234 343 126 BETA Characteriz -186.54 BOO0l0lFO1 37 25-Nov-02 6.50E+01 10 30 2200 0.234 343 126 BETA Characteriz 159.41 Page 27 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 B000101F170 38 25-Nov-02 5.80E+01 10 30 2200 0.234 343 126 BETA Characteriz 16.96 B0001011FOI 39 25-Nov-02 6.10E+01 10 30 2200 0.234 343 126 BETA Characteriz 78.01 B000101FOI 40 25-Nov-02 5.80E+01 10 30 2200 0.234 343 126 BETA Characteriz 16.96 B000101F170 41 25-Nov-02 5.30E+01 10 30 2200 0.234 343 126 BETA Characteriz -84.79 BO0010IFOl. 42 25-Nov-02 5.70E+01 10 30 2200 0.234 343 126 BETA Characteriz -3.39 B000I1F010 5 25-Nov-02 6.60E+01 10 30 2200 0.234 343 126 BETA Characteriz 179.76 BOOO1OlFO1 6 25-Nov-02 5.90E+01 10 30 2200 0.234 343 126 BETA Characteriz 37.31 130001011F01 7 25-Nov-02 6.10E+01 10 30 2200 0.234 343 126 BETA Characteriz 78.01 B000101FOI 8 25-Nov-02 5.20E+01 10 30 2200 0.234 343 126 BETA Characteriz -105.14 BOOOlO1FOl 9 25-Nov-02 4.00E+01 10 30 2200 0.234 343 126 BETA Characteriz -349.34 Statistical Summary dpm/100 cmA2 Number Maximum Mean Std Dev 38 404 -3 188 BOO0lOlWOl 44 25-Nov-02 I.09E+02 10 30 2200 0.234 317 126 BETA Characteriz 1142.99 BOOOlOlWO1 45 25-Nov-02 8.20E+01 10 30 2200 0.234 317 126 BETA Characteriz 593.54 Booololwo1 46 25-Nov-02 9.40E+01 10 30 2200 0.234 317 126 BETA Characteriz 837.74 BOO0lOlWO1 48 25-Nov-02 4.30E+01 10 30 2200 0.234 292 126 BETA Characteriz -115.32 1O000101WOI 49 25-Nov-02 6.OOE+01 10 30 2200 0.234 292 126 BETA Characteriz 230.63 BO~OlOlWO1 50 25-Nov-02 4.20E+01 10 30 2200 0.234 292 126 BETA Characteriz -135.67 1B000101WOI 51 25-Nov-02 2.70E+01 10 30 2200 0.234 292 126 BETA Characteriz -440.92 B0O1Ol~WO1 52 25-Nov-02 2.60E+01 10 30 2200 0.234 317 126 BETA Characteriz -546.06 B000101WO1 53 25-Nov-02 1.60E+01 10 30 2200 0.234 317 126 BETA Characteriz -749.56 BOOOlOlWOl 54 25-Nov-02 2.00E+00 10 30 2200 0.234 317 126 BETA Characteriz -1034.46 Booo1O1WOI 55 25-Nov-02 2.80E+01 10 30 2200 0.234 292 126 BETA Characteriz -420.57 BOOOlOlWO1 56 25-Nov-02 3.20E+01 10 30 2200 0.234 292 126 BETA Characteriz -339.17 B000101WO1 57 25-Nov-02 3.60E+I01 10 30 2200 0.234 292 126 BETA Characteriz -257.77 BOO0Ol1WO1 58 25-Nov-02 3.50E+01 10 30 2200 0.234 292 126 BETA Characteriz -278.12 B000101W02 60 25-Nov-02 6.80E+01 10 30 2200 0.234 339 126 BETA Characteriz 234.03 B000101W02 61 25-Nov-02 1.05E+02 10 30 2200 0.234 339 126 BETA Characteriz 986.98 B000101W02 62 25-Nov-02 9.60E+01 to 30 2200 0.234 339 126 BETA Characteriz 803.83 Page 28 of 50

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' .I Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficlency Background Instrument Location Number Date Count (sec) Fle Det Type (dd) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 BOOOlOIW02 63 25-Nov-02 1.21E+02 10 30 2200 0.234 339 126 BETA Characteriz 1312.58 BOOOIOlW03 64 25-Nov-02 4.90E+01 10 30 2200 0.234 339 126 BETA Characteriz -152.63 BOOOlOlW03 65 25-Nov-02 5.20E+01 10 30 2200 0.234 339 126 BETA Characteriz -91.58 BOOOlOlW03 66 25-Nov-02 3.30E+01 10 30 2200 0.234 339 126 BETA Characteriz -478.23 BOOOIOIW03 67 25-Nov-02 3.70E+01 10 30 2200 0.234 339 126 BETA Characteriz -396.83 BOOOIOIW03 68 25-Nov-02 5.50E+01 10 30 2200 0.234 339 126 BETA Characteriz -30.53 BOOOIOIW03 69 25-Nov-02 6.90E+01 10 30 2200 0.234 339 126 BETA Characteriz 254.38 BOOOIOIW03 70 25-Nov-02 9.30E+01 10 30 2200 0.234 339 126 BETA Characteriz 742.78 BOOOIOIW03 71 25-Nov-02 9.OOE+01 10 30 2200 0.234 339 126 BETA Characteriz 681.73 BOOOIOIW03 72 25-Nov-02 1.09E+02 10 30 2200 0.234 339 126 BETA Characteriz 1068.38 BOOOIOIW03 73 25-Nov-02 5.IOE+01 10 30 2200 0.234 339 126 BETA Characteriz -111.93 BOOOIOIW03 74 25-Nov-02 8.20E+01 10 30 2200 0.234 339 126 BETA Characteriz 518.93 BOOOIOIW03 75 25-Nov-02 8.20E+01 10 30 2200 0.234 339 126 BETA Characteriz 518.93 BOOOIOIW03 76 25-Nov-02 1.05E+02 10 30 2200 0.234 339 126 BETA Characteriz 986.98 BOOOtOIW03 77 25-Nov-02 8.00E+01 10 30 2200 0.234 339 126 BETA Characteriz 478.23 BOOOlOlW03 78 25-Nov-02 7.OOE+01 10 30 2200 0.234 339 126 BETA Characteriz 274.73 BOOOlOIW03 79 25-Nov-02 9.60E+01 10 30 2200 0.234 339 126 BETA Characteriz 803.83 BOOOIOIW03 80 25-Nov-02 8.OOE+01 10 30 2200 0.234 339 126 BETA Characteriz 478.23 BOOOIOIW03 81 25-Nov-02 7.60E+01 10 30 2200 0.234 339 126 BETA Characteriz 396.83 BOOOIOIW03 82 25-Nov-02 9.20E+01 10 30 2200 0.234 339 126 BETA Characteriz 722.43 BOOOIOIW03 83 25-Nov-02 8.60E+01 10 30 2200 0.234 339 126 BETA Characteriz 600.33 BOOOIOIW03 84 25-Nov-02 4.70E+01 10 30 2200 0.234 339 126 BETA Characteriz -193.33 B000101W03 85 25-Nov-02 4.60E+01 10 30 2200 0.234 339 126 BETA Characteriz -213.68 BOOOIOIW03 86 25-Nov-02 4.20E+01 10 30 2200 0.234 339 126 BETA Characteriz -295.08 BOOOlOlW03 87 25-Nov-02 4.20E+01 10 30 2200 0.234 339 126 BETA Characteriz -295.08 BOOOlOlW03 88 25-Nov-02 5.90E+01 10 30 2200 0.234 339 126 BETA Characteriz 50.88 BOOOlOIW03 89 25-Nov-02 5.70E+01 10 30 2200 0.234 339 126 BETA Characteriz 10.18 BOOOIOIW03 90 25-Nov-02 5.SOE+01 10 30 2200 0.234 339 126 BETA Characteriz -30.53 BOOOlOIW03 91 25-Nov-02 8.20E+01 10 30 2200 0.234 339 126 BETA Characteriz 518.93 BOOOIOIW03 92 25-Nov-02 7.10E+01 10 30 2200 0.234 339 126 BETA Characteriz 295.08 BOOOIOIW03 93 25-Nov-02 6.30E+01 10 30 2200 0.234 339 126 BETA Characteriz 132.28 Page 29 of 50

C C Attachment 6: Summary of Total Surface Contaminatin Beta Meaqurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (e/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 BOOOlOlW03 94 25-Nov-02 5.20E+01 10 30 2200 0.234 339 126 BETA Characteriz -91.58 BOOOIOIW03 95 25-Nov-02 6.20E1+01 10 30 2200 0.234 339 126 BETA Characteriz 111.93 BOOOlOlW03 96 25-Nov-02 5.50E+01 10 30 2200 0.234 339 126 BETA Characteriz -30.53 BOOOlOlW03 97 25-Nov-02 7.40E+01 10 30 2200 0.234 339 126 BETA Characteriz 356.13 BOOOlOlW03 98 25-Nov-02 9.80E+01 10 30 2200 0.234 339 126 BETA Characteriz 844.53 BOOOlOIW03 99 25-Nov-02 1.03E+02 10 30 2200 0.234 339 126 BETA Characteriz 946.28 BOOOlOlW03 100 25-Nov-02 6.90E+01 10 30 2200 0.234 339 126 BETA Characteriz 254.38 BOOOlOlW03 101 25-Nov-02 6.60E+01 10 30 2200 0.234 339 126 BETA Characteriz 193.33 BOOOlOlW03 102 25-Nov-02 7.70E+01 10 30 2200 0.234 339 126 BETA Characteriz 417.18 BOOOlOlW03 103 25-Nov-02 7.90E+01 10 30 2200 0.234 339 126 BETA Characteriz 457.88 BOOOlOIW04 106 25-Nov-02 7.90E+01 10 30 2200 0.234 285 126 BETA Characteriz 641.03 BOOOlOlW04 107 25-Nov-02 6.60E+01 10 30 2200 0.234 285 126 BETA Characteriz 376.48 BOOOlOlW04 108 25-Nov-02 5.80E+01 10 30 2200 0.234 285 126 BETA Characteriz 213.68 BOOOlOlW04 109 25-Nov-02 7.70E+01 10 30 2200 0.234 285 126 BETA Characteriz 600.33 BOOOIOlW04 110 25-Nov-02 8.00E+01 10 30 2200 0.234 285 126 BETA Characteriz 661.38 BOOOlOlW04 111 25-Nov-02 7.20E+01 10 30 2200 0.234 285 126 BETA Characteriz 498.58 BOOOlOlW04 112 25-Nov-02 6.60E+01 10 30 2200 0.234 285 126 BETA Characteriz 376.48 BOOOIOIW04 105 25-Nov-02 8.20E+01 10 30 2200 0.234 285 126 BETA Characteriz 702.08 Statistical Summary dpm/100 cmA2 Number Maximum Mean Std Dev 66 1313 251 493 B000102F01 114 25-Nov-02 4.40E+01 10 30 2200 0.234 326 126 BETA Characteriz -210.28 B000102F01 115 25-Nov-02 4.60E+01 10 30 2200 0.234 326 126 BETA Characteriz -169.58 B000102FO0 116 25-Nov-02 3.60E+01 10 30 2200 0.234 326 126 BETA Characteriz -373.08 B000102F01 117 25-Nov-02 3.20E+01 10 30 2200 0.234 326 126 BETA Characteriz -454.48 B000102FOI 118 25-Nov-02 2.80E+01 10 30 2200 0.234 326 126 BETA Characteriz -535.88 B000102F01 119 25-Nov-02 1.90E+01 10 30 2200 0.234 326 126 BETA Characteriz -719.03 B000102FO1 120 25-Nov-02 1.50E+01 10 30 2200 0.234 326 126 BETA Characteriz -800.43 B000102F01 121 25-Nov-02 1.1OE+01 10 30. 2200 0.234 326 126 BETA Characteriz -881.83 B000102F01 122 25-Nov-02 1.40E+01 10 30 2200 0.234 326 126 BETA Characteriz -820.78 Page 30 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efriclency Background Instrument Location Number Date Count (see) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 B0001 02F01 123 25-Nov-02 7.OOE+00 10 30 2200 0.234 326 126 BETA Characteriz -963.23 B000102F01 124 25-Nov-02 1.10E+01 10 30 2200 0.234 326 126 BETA Characteriz -881.83 B000102F0I 125 25-Nov-02 3.00E+00 10 30 2200 0.234 326 126 BETA Characteriz -1044.63 B000102FO1 126 25-Nov-02 2.00E+00 10 30 2200 0.234 326 126 BETA Characteriz -1064.98 B000102F01 127 25-Nov-02 2.OOE+00 10 30 2200 0.234 326 126 BETA Characteriz -1064.98 B000102F01 128 25-Nov-02 2.OOE+00 10 30 2200 0.234 326 126 BETA Characteriz -1064.98 B000102F01 129 25-Nov-02 7.00E+00 10 30 2200 0.234 326 126 BETA Characteriz -963.23 Statistical Summary dpm/100 cm^2 Number Maximum Mean Std Dev 16 -170 -751 308 data rejected and will not be reported B000102W01 131 25-Nov-02 1.24E+02 10 30 2200 0.234 355 126 BETA Characteriz 1319.36 B000102W01 132 25-Nov-02 1.20E+02 10 30 2200 0.234 355 126 BETA Characteriz 1237.96 B000102WO1 133 25-Nov-02 5.30E+01 10 30 2200 0.234 355 126 BETA Characteriz -125.49 B000102W01 134 25-Nov-02 1.05E+02 10 30 2200 0.234 355 126 BETA Characteriz 932.71 B000102WOI 135 25-Nov-02 l.llE+02 10 30 2200 0.234 355 126 BETA Characteriz 1054.81 B000102WO1 136 25-Nov-02 1.09E+02 10 30 2200 0.234 355 126 BETA Characteriz 1014.11 B000102W01 137 25-Nov-02 8.90E+01 10 30 2200 0.234 355 126 BETA Characteriz 607.11 B000102W01 138 25-Nov-02 7.40E+01 10 30 2200 0.234 355 126 BETA Characteriz 301.86 B000102WO1 139 25-Nov-02 7.00E+01 10 30 2200 0.234 355 126 BETA Characteriz 220.46 B000102W01 140 25-Nov-02 1.13E+02 10 30 2200 0.234 355 126 BETA Characteriz 1095.51 B000102WOl 141 25-Nov-02 1.26E+02 10 30 2200 0.234 355 126 BETA Characteriz 1360.06 B000102W01 142 25-Nov-02 1.14E+02 10 30 2200 0.234 355 126 BETA Characteriz 1115.86 B000102WO1 143 25-Nov-02 1.28E+02 10 30 2200 0.234 355 126 BETA Characteriz 1400.76 B000102W0l 144 25-Nov-02 1.20E+02 10 30 2200 0.234 355 126 BETA Characteriz 1237.96 B000102WO1 145 25-Nov-02 1.18E+02 10 30 2200 0.234 355 126 BETA Characteriz 1197.26 B000102W01 146 25-Nov-02 1.27E+02 10 30 2200 0.234 355 126 BETA Characteriz 1380.41 B000102WO1 147 25-Nov-02 1.22E+02 10 30 2200 0.234 355 126 BETA Characteriz 1278.66 B000 102 WO1 148 25-Nov-02 1.31E+02 10 30 2200 0.234 355 126 BETA Characteriz 1461.81 B000102W01 149 25-Nov-02 3.90E+01 10 30 2200 0.234 355 126 BETA Characteriz -410.39 B000102WO1 150 25-Nov-02 1.28E+02 10 30 2200 0.234 355 126 BETA Characteriz 1400.76 Page 31 of 50

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C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efclency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 B000102WO1 151 25-Nov-02 1.1SE+02 10 30 2200 0.234 355 126 BETA Characteriz 1136.21 B000102W01 152 25-Nov-02 1.12E+02 10 30 2200 0.234 355 126 BETA Characteriz 1075.16 B000102W01 153 25-Nov-02 1.02E+02 10 30 2200 0.234 355 126 BETA Characteriz 871.66 B000102W01 154 25-Nov-02 8.60E+01 10 30 2200 0.234 355 126 BETA Characteriz 546.06 B000102W01. 155 25-Nov-02 8.70E+01 10 30 2200 0.234 355 126 BETA Characteriz 566.41 B000102W01 156 25-Nov-02 1.19E+02 10 30 2200 0.234 355 126 BETA Characteriz 1217.61 B000102W01, 157 25-Nov-02 1.15E+02 10 30 2200 0.234 355 126 BETA Characteriz 1136.21 B000102W01 158 25-Nov-02 1.46E+02 10 30 2200 0.234 355 126 BETA Characteriz 1767.06 B000102WOI 159 25-Nov-02 5.30E+01 10 30 2200 0.234 355 126 BETA Characteriz -125.49 B000102WOI 160 25-Nov-02 6.80E+01 10 30 2200 0.234 355 126 BETA Characteriz 179.76 B000102W01 161 25-Nov-02 1.03E+02 10 30 2200 0.234 355 126 BETA Characteriz 892.01 B000102WO1 162 25-Nov-02 1.311E+02 10 30 2200 0.234 355 126 BETA Characteriz 1461.81 Statistical Summary dpm/100 cmA2 lumber Maximum Mean Std Dev 32 1767 931 532 B000103FO1 6 25-Nov-02 1.811E+02 30 29 2200 0.211 266 126 BETA Characteriz 361.09 B000103FO1 7 25-Nov-02 1.43E+02 30 29 2200 0.211 266 126 BETA Characteriz 75.23 B000103FO1 8 25-Nov-02 1.54E+02 30 29 2200 0.211 266 126 BETA Characteriz 157.98 B000103F01 9 25-Nov-02 1.45E+02 30 29 2200 0.211 266 126 BETA Characteriz 90.27 B000103FOI 10 25-Nov-02 1.73E+02 30 29 2200 0.211 266 126 BETA Characteriz 300.91 B000103FOI 11 25-Nov-02 1.65E+02 30 29 2200 0.211 266 126 BETA Characteriz 240.73 B000103FO1 12 25-Nov-02 1.65E+02 30 29 2200 0.211 266 126 BETA Characteriz 240.73 B000103FO1 13 25-Nov-02 1.71E+02 30 29 2200 0.211 266 126 BETA Characteriz 285.86 B000103FO1 14 25-Nov-02 1.37E+02 30 29 2200 0.211 266 126 BETA Characteriz 30.09 B000103FO1 15 25-Nov-02 1.53E+02 30 29 2200 0.211 266 126 BETA Characteriz 150.46 B000103FO1 16 25-Nov-02 1.63E+02 30 29 2200 0.211 266 126 BETA Characteriz 225.68 B000103FO1 17 25-Nov-02 1.74E+02 30 29 2200 0.211 266 126 BETA Characteriz 308.43 Statistical Summary dpm/100 cmA2 Number Maximum Mean Std Dev 12 361 206 104 Page 32 of 50

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( C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw EMciency Background Instrument Location Number Date Count (sec) File Det Type (cld) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 B000103SOI 43 25-Nov-02 1.501E+02 30 29 2200 0.211 266 126 BETA Characteriz 127.89 B000103SOI 44 25-Nov-02 1.46E+02 30 29 2200 0.211 266 126 BETA Characteriz 97.80 B000103S01 45 25-Nov-02 1.47E+02 30 29 2200 0.211 266 126 BETA Characteriz 105.32 B000103SO1 46 25-Nov-02 1.65E+02 30 29 2200 0.211 266 126 BETA Characteriz 240.73 B000103SO1 47 25-Nov-02 1.54E+02 30 29 2200 0.211 266 126 BETA Characteriz 157.98 B000103SO1 48 25-Nov-02 1.7113+02 30 29 2200 0.211 266 126 BETA Characteriz 285.86 B000103SO1 49 25-Nov-02 1.77E+02 30 29 2200 0.211 266 126 BETA Characteriz 331.00 B000103SO1 50 25-Nov-02 1.43E+02 30 29 2200 0.211 266 126 BETA Characteriz 75.23 B000103SO1 51 25-Nov-02 1.64E+02 30 29 2200 0.211 266 126 BETA Characteriz 233.21 B000103SO1 52 25-Nov-02 1.41E+02 30 29 2200 0.211 266 126 BETA Characteriz 60.18 B000103S01 53 25-Nov-02 1.63E+02 30 29 2200 0.211 266 126 BETA Characteriz 225.68 B000103S01 54 25-Nov-02 1.54E+02 30 29 2200 0.211 266 126 BETA Characteriz 157.98 B000103SO1 55 25-Nov-02 1.38E+02 30 29 2200 0.211 266 126 BETA Characteriz 37.61 B000103SO1 56 25-Nov-02 1.79E+02 30 29 2200 0.211 266 126 BETA Characteriz 346.05 B000103SOI 57 25-Nov-02 1.58E+02 30 29 2200 0.211 266 126 BETA Characteriz 188.07 Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 15 346 178 97 B000103WO1 18 25-Nov-02 1.62E+02 30 29 2200 0.211 266 126 BETA Characteriz 218.16 B000103W01 19 25-Nov-02 1.36E+02 30 29 2200 0.211 266 126 BETA Characteriz 22.57 B000103WO1 20 25-Nov-02 1.39E+02 30 29 2200 0.211 266 126 BETA Characteriz 45.14 B000103W01 21 25-Nov-02 1.58E+02 30 29 2200 0.211 266 126 BETA Characteriz 188.07 B000103WO1 22 25-Nov-02 1.62E+02 30 29 2200 0.211 266 126 BETA Characteriz 218.16 B000103W01 23 25-Nov-02 1.47E1+02 30 29 2200 0.211 266 126 BETA Characteriz 105.32 B000103WO1 24 25-Nov-02 1.43E+02 30 29 2200 0.211 266 126 BETA Characteriz 75.23 B000103WO1 25 25-Nov-02 1.48E+02 30 29 2200 0.211 266 126 BETA Characteriz 112.84 B000103WO1 26 25-Nov-02 1.40E+02 30 29 2200 0.211 266 126 BETA Characteriz 52.66 B000103WO1 27 25-Nov-02 1.72E+02 30 29 2200 0.211 266 126 BETA Characteriz 293.39 B000103WO1 28 25-Nov-02 1.50E+02 30 29 2200 0.211 266 126 BETA Characteriz 127.89 Page 33 of 50

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C C C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efciency Background Instrument Location Number Date Count (sec) Flle Det Type (eld) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 B000103WOI 29 25-Nov-02 1.57E+02 30 29 2200 0.211 266 126 BETA Characteriz 180.55 B000103W01 30 25-Nov-02 1.3313+02 30 29 2200 0.211 266 126 BETA Characteriz 0.00 B000103WO1 31 25-Nov-02 1.61E+02 30 29 2200 0.211 266 126 BETA Characteriz 210.64 B000103WO1 32 25-Nov-02 1.5813+02 30 29 2200 0.211 266 126 BETA Characteriz 188.07 B000103W01 33 25-Nov-02 1.7713+02 30 29 2200 0.211 266 126 BETA Characteriz 331.00 B000103WO1 34 25-Nov-02 1.22E+02 30 29 2200 0.211 266 126 BETA Characteriz -82.75 B000103WO1 35 25-Nov-02 1.6413+02 30 29 2200 0.211 266 126 BETA Characteriz 233.21 B000103W01 36 25-Nov-02 1.58E+02 30 29 2200 0.211 266 126 BETA Characteriz 188.07 B000103W01 37 25-Nov-02 1.6713+02 30 29 2200 0.211 266 126 BETA Characteriz 255.77 B000103W01 38 25-Nov-02 1.68E+02 30 29 2200 0.211 266 126 BETA Characteriz 263.30 B000103WO1 39 25-Nov-02 1.75E+02 30 29 2200 0.211 266 126 BETA Characteriz 315.96 B000103W01 40 25-Nov-02 1.63E+02 30 29 2200 0.211 266 126 BETA Characteriz 225.68 B000103W01 41 25-Nov-02 1.8113+02 30 29 2200 0.211 266 126 BETA Characteriz 361.09 B000103W02 58 25-Nov-02 1.32E+02 30 29 2200 0.211 266 126 BETA Characteriz -7.52 B000103W02 59 25-Nov-02 1.4313+02 30 29 2200 0.211 266 126 BETA Characteriz 75.23 B000103W02 60 25-Nov-02 1.49Ei+02 30 29 2200 0.211 266 126 BETA Characteriz 120.36 B000103W02 61 25-Nov-02 1.4713+02 30 29 2200 0.211 266 126 BETA Characteriz 105.32 B000103W02 62 25-Nov-02 1.6013+02 30 29 2200 0.211 266 126 BETA Characteriz 203.11 B000103W02 63 25-Nov-02 1.47E+02 30 29 2200 0.211 266 126 BETA Characteriz 105.32 B000103W02 64 25-Nov-02 1.4013+02 30 29 2200 0.211 266 126 BETA Characteriz 52.66 B000103W03 65 25-Nov-02 1.5413+02 30 29 2200 0.211 266 126 BETA Characteriz 157.98 B000103W03 66 25-Nov-02 1.5413+02 30 29 2200 0.211 266 126 BETA Characteriz 157.98 B000103W03 67 25-Nov-02 1.26E+02 30 29 2200 0.211 266 126 BETA Characteriz -52.66 B000103W03 68 25-Nov-02 1.14E+02 30 29 2200 0.211 266 126 BETA Characteriz -142.93 B000103W03 69 25-Nov-02 1.5913+02 30 29 2200 0.211 266 126 BETA Characteriz 195.59 B000103W03 70 25-Nov-02 1.8013+02 30 29 2200 0.211 266 126 BETA Characteri 353.57 B000103W03 71 25-Nov-02 1.54E+02 30 29 2200 0.211 266 126 BETA Characteriz 157.98 B000103W03 72 25-Nov-02 1.38E+02 30 29 2200 0.211 266 126 BETA Characteriz 37.61 B000103W03 73 25-Nov-02 1.29E+02 30 29 2200 0.211 266 126 BETA Characteriz -30.09 B000103W03 74 25-Nov-02 1.4113+02 30 29 2200 0.211 266 126 BETA Characteriz 60.18 B000103W04 75 25-Nov-02 1.5113+02 30 29 2200 0.211 266 126 BETA Characteriz 135.41 Page 34 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efflciency Background Instrument Location Number Date Count (sec) FIle Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 B000103W04 76 25-Nov-02 1.33E+02 30 29 2200 0.211 266 126 BETA Characteriz 0.00 B000103W04 77 25-Nov-02 1.5SE+02 30 29 2200 0.211 266 126 BETA Characteriz 165.50 B000103W04 78 25-Nov-02 1.61E+02 30 29 2200 0.211 266 126 BETA Characteriz 210.64 B000103W04 79 25-Nov-02 1.55E+02 30 29 2200 0.211 266 126 BETA Characteriz 165.50 B000103W04 80 25-Nov-02 1.48E+02 30 29 2200 0.211 266 126 BETA Characteriz 112.84 Statistical Summary dpm/100 cm 2 Number Maximum Mean Std Dev 47 361 138 114 COOOIO1OHI 5 5-Dec-02 7.90E+01 10 45 2200 0.22 353 126 Beta Characteriz 436.51 COOOIO1OH1 6 5-Dec-02 6.1OE+01 10 45 2200 0.22 353 126 Beta Characteriz 46.90 C000OlOHI 7 5-Dec-02 9.00E+01 10 45 2200 0.22 353 126 Beta Characteriz 674.60 C0001010HI 8 5-Dec-02 6.50E+01 10 45 2200 0.22 353 126 Beta Characteriz 133.48 C0000101OHI 9 5-Dec-02 6.20E+01 10 45 2200 0.22 353 126 Beta Characteriz 68.54 C0001010111 10 5-Dec-02 6.10E+01 10 45 2200 0.22 353 126 Beta Characteriz 46.90 COOO1OlOH1 11 5-Dec-02 7.20E+01 10 45 2200 0.22 353 126 Beta Characteriz 284.99 C01OO1OHI 17 5-Dec-02 6.50E+01 10 45 2200 0.22 353 126 Beta Characteriz 133.48 COOOlOIOHI 18 5-Dec-02 6.00E+01 10 45 2200 0.22 353 126 Beta Characteriz 25.25 COOOlOlOH1 19 5-Dec-02 6.80E+01 10 45 2200 0.22 353 126 Beta Characteriz 198.41 C000101011 20 5-Dec-02 6.80E+01 10 45 2200 0.22 353 126 Beta Characteriz 198.41 C0001010HI1 21 5-Dec-02 7.40E+01 10 45 2200 0.22 353 126 Beta Characteriz 328.28 COOOlOlOHl 22 5-Dec-02 5.80E+01 10 45 2200 0.22 353 126 Beta Characteriz -18.04 C0001010Hl 23 5-Dec-02 4.70E+01 10 45 2200 0.22 353 126 Beta Characteriz -256.13 COOO1OlOH1 24 5-Dec-02 5.50E+01 10 45 2200 0.22 353 126 Beta Characteriz -82.97 C0001010111 25 5-Dec-02 7.40E+01 10 45 2200 0.22 353 126 Beta Characteriz 328.28 COOOlOOH1 26 5-Dec-02 5.60E+01 10 45 2200 0.22 353 126 Beta Characteriz -61.33 C0001010H1 27 5-Dec-02 6.00E+01 10 45 2200 0.22 353 126 Beta Characteriz 25.25 COOO1O1OHI 28 5-Dec-02 8.10E+01 10 45 2200 0.22 353 126 Beta Characteriz 479.80 COOOlOlOH1 29 5-Dec-02 5.90E3+01 10 45 2200 0.22 353 126 Beta Characteriz 3.61 C0001010HI 30 5-Dec-02 8.10E+01 10 45 2200 0.22 353 126 Beta Characteriz 479.80 COOOOOH1 31 5-Dec-02 8.30E+01 10 45 2200 0.22 353 126 Beta Characteriz 523.09 Page 35 of 50

W! E %t .1 * - '1s~ Mk :.,

Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (see) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 COOOlOOIH1 32 5-Dec-02 5.40E+01 10 45 2200 0.22 353 126 Beta Characteriz -104.62 COOOlOlOHl 33 5-Dec-02 6.30E+01 10 45 2200 0.22 353 126 Beta Characteriz 90.19 COOOIOIOH1 34 5-Dec-02 4.80E+01 10 45 2220 0.22 353 126 Beta Characteriz -234.49 COOOlOlOH1 35 5-Dec-02 6.30E+01 10 45 2200 0.22 353 126 Beta Characteriz 90.19 COOOlOlOH1 36 5-Dec-02 8.80E+01 10 45 2200 0.22 353 126 Beta Characteriz 631.31 COOOIO1OH1 37 5-Dec-02 8.60E+01 10 45 2200 0.22 353 126 Beta Characteriz 588.02 COOOIO1OHI 38 5-Dec-02 6.70E+01 10 45 2200 0.22 353 126 Beta Characteriz 176.77 COOOIO1OH1 39 5-Dec-02 7.10E+01 10 45 2200 0.22 353 126 Beta Characteriz 263.35 COOOIOIOH1 40 5-Dec-02 4.60E+01 10 45 2200 0.22 353 126 Beta Characteriz -277.78 COOOIO1OH1 41 5-Dec-02 9.50E+01 10 45 2200 0.22 353 126 Beta Characteriz 782.83 COOOIO1OH1 42 5-Dec-02 5.60E+01 10 45 2200 0.22 353 126 Beta Characteriz -61.33 COOlOIOOHI 43 5-Dec-02 6.OOE+01 10 45 2200 0.22 353 126 Beta Characteriz 25.25 COOOlOlOHI 44 5-Dec-02 8.50E+01 10 45 2200 0.22 353 126 Beta Characteriz 566.38 COO0IO1OH1 45 5-Dec-02 5.42E+02 30 45 2200 0.22 1172 126 Beta Characteriz -317.46 Statistical Summar y dpm/OO cm2 Number Maximum Mean Std Dev 36 783 173 285 DO0011DOI 1 6-Dec-02 5.30E+01 10 50 2200 0.227 408 126 BETA Characteriz -314.66 DOOOIOIDOI 2 6-Dec-02 7.50E+01 10 50 2200 0.227 408 126 BETA Characteriz 146.84 Statistical Summar ry dpm/100 cm 2 Number Maximum Mean Std Dev 2 147 -84 326 DOOO1O1D02 5 20-Dec-02 2.34E+02 180 59 2302 0.019 73 100 BETA Characteriz 263.16 D000101D03 9 20-Dec-02 8.90E+04 180 59 2302 0.019 125 100 BETA Characteriz 1554491.23 DOOO1O1DO4 7 20-Dec-02 7.54E+02 180 59 2302 0.019 79 100 BETA Characteriz 9070.18 D000101D05 11 20-Dec-02 3.28E+02 180 59 2302 0.019 71 100 BETA Characteriz 2017.54 Page 36 of 50

..- r i: - - ?I C C .C_

Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efciency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 DOOOlOlD06 13 20-Dec-02 2.68E+02 180 59 2302 0.019 96 100 BETA Characteriz -350.88 DOOOlOlD07 15 20-Dec-02 2.37E+02 180 59 2302 0.019 92 100 BETA Characteriz -684.21 DOOOIOID10 3 20-Dec-02 2.72E+02 180 59 2302 0.019 85 100 BETA Characteriz 298.25 D000101VOI 1 5-Dec-02 3.40E+01 10 47 2200 0.22 279 126 BETA Characteriz -270.56 D0001,01VOI 2 5-Dec-02 5.OOE+01 10 47 2200 0.22 279 126 BETA Characteriz 75.76 DOOOlOlVO1 6 6-Dec-02 5.50E+01 10 47 2200 0.22 312 126 BETA Characteriz 64.94 D000101VOI 7 6-Dec-02 5.40E+01 10 47 2200 0.22 312 126 BETA Characteriz 43.29 1D00O101VOI 14 6-Dec-02 6.10E+01 10 47 2200 0.22 349 126 BETA Characteriz 61.33 DOOO1O1VOl. 15 6-Dec-02 5.80E+01 10 47 2200 0.22 349 126 BETA Characteriz -3.61 D000101VOI 19 6-Dec-02 4.OOE+01 10 47 2200 0.22 314 126 BETA Characteriz -266.96 D000101OIVO 20 6-Dec-02 6.40E+01 10 47 2200 0.22 314 126 BETA Characteriz 252.53 Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 8 253 -5 179 DOOO1O1V02 3 5-Dec-02 5.50E+01 10 47 2200 0.22 279 126 BETA Characteriz 183.98 DOOO 101V02 4 5-Dec-02 5.70E+01 10 47 2200 0.22 279 126 BETA Characteriz 227.27 DOOOIO1V02 8 6-Dec-02 7.OOE+01 10 47 2200 0.22 291 126 BETA Characteriz 465.37 DOOO1O1V02 9 6-Dec-02 4.70E+01 10 47 2200 0.22 291 126 BETA Characteriz -32.47 DOOO1O1V02 12 6-Dec-02 7.10E+01 10 47 2200 0.22 349 126 BETA Characteriz 277.78 DOOO 101V02 13 6-Dec-02 4.60E+01 10 47 2200 0.22 349 126 BETA Characteriz -263.35 D0001 01V02 17 6-Dec-02 5.40E+01 10 47 2200 0.22 314 126 BETA Characteriz 36.08 D000101V02 18 6-Dec-02 5.50E+01 10 47 2200 0.22 314 126 BETA Characteriz 57.72 Statistical Summary dpm/100 cmz Number Maximum Mean Std Dev 8 465 119 221 Page 37 of 50

I Of .1e '- ' .+. .. ,-

C C C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficlency Background Instrument Location Number Date Count (sec) Fie Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOeCm 2 NOOOIBOOO5 0 07-Dec-02 5.23E+02 60 55 2200 0.229 319 126 BETA Characteriz 707.01 NOOOIB0005 1 07-Dec-02 4.90E+02 60 55 2200 0.229 319 126 BETA Characteriz 592.64 NOOOlBOOOS 2 07-Dec-02 5.14E+02 60 55 2200 0.229 319 126 BETA Characteriz 675.82 NOOOlBOO05 3 07-Dec-02 4.8513+02 60 55 2200 0.229 319 126 BETA Characteriz 575.31 NOOOlBOOOS 4 07-Dec-02 4.8013+02 60 55 2200 0.229 319 126 BETA Characteriz 557.98 NOOOIBOOOS 5 07-Dec-02 5.1413+02 60 55 2200 0.229 319 126 BETA Characteriz 675.82 NOOOlBOOOS 6 07-Dec-02 4.57E+02 60 55 2200 0.229 319 126 BETA Characteriz 478.27 NOOOlBOOOS 7 07-Dec-02 4.99E+02 60 55 2200 0.229 319 126 BETA Characteriz 623.83 NOOOIBOOOS 8 07-Dec-02 4.45E+02 60 55 2200 0.229 319 126 BETA Characteriz 436.68 NOOOIBOOOS 9 07-Dec-02 5.181E+02 60 55 2200 0.229 319 126 BETA Characteriz 689.68 NOOOIBOOO5 10 07-Dec-02 4.6213+02 60 55 2200 0.229 319 126 BETA Characteriz 495.60 NOOO1BOOOS 11 07-Dec-02 4.6913+02 60 55 2200 0.229 319 126 BETA Characteriz 519.86 NOOOlBOOOS 12 07-Dec-02 4.2813+02 60 55 2200 0.229 319 126 BETA Characteriz 377.76 NOOOlBOO05 13 07-Dec-02 4.4713+02 60 55 2200 0.229 319 126 BETA Characteriz 443.61 NOOOB0O005 14 07-Dec-02 4.64E+02 60 55 2200 0.229 319 126 BETA Characteriz 502.53 NOOOIBOOOS 15 07-Dec-02 4.30E+02 60 55 2200 0.229 319 126 BETA Characteriz 384.70 NOOOIBOOOS 16 07-Dec-02 4.4113+02 60 55 2200 0.229 319 126 BETA Characteriz 422.82 NOOOIBOOO5 17 07-Dec-02 4.49E+02 60 55 2200 0.229 319 126 BETA Characteriz 450.54 NOOOlBOOO5 18 07-Dec-02 4.32E+02 60 55 2200 0.229 319 126 BETA Characteriz 391.63 NOOOIBOOOS 19 07-Dec-02 4.04E+02 60 55 2200 0.229 319 126 BETA Characteriz 294.59 NOOOIBOOOS 20 07-Dec-02 4.5613+02 60 55 2200 0.229 319 126 BETA Characteriz 474.80 NOOOlBOO05 21 07-Dec-02 4.6313+02 60 55 2200 0.229 319 126 BETA Characteriz 499.06 NOOOlBOOO5 22 07-Dec-02 4.0113+02 60 55 2200 0.229 319 126 BETA Characteriz 284.19 NOOOIBOO05 23 07-Dec-02 4.18E+02 60 55 2200 0.229 319 126 BETA Characteriz 343.11 NOOOlBOO05 24 07-Dec-02 4.8013+02 60 55 2200 0.229 319 126 BETA Characteriz 557.98 NOOOIBOO05 25 07-Dec-02 4.36E+02 60 55 2200 0.229 319 126 BETA Characteriz 405.49 NOOOIBOO05 26 07-Dec-02 3.94E+02 60 55 2200 0.229 319 126 BETA Characteriz 259.93 NOOOlBOOOS 27 07-Dec-02 4.88E+02 60 55 2200 0.229 319 126 BETA Characteriz 585.71 NOOOIBOOO5 28 07-Dec-02 4.1413+02 60 55 2200 0.229 319 126 BETA Characteriz 329.24 NOOOlBOOO5 29 07-Dec-02 3.9913+02 60 55 2200 0.229 319 126 BETA Characteriz 277.26 Statistical Summary dpm/100 cm2 Page 38 of 50

11.1.$ I, I *. i r *11-. I :r -

C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efciency Background Instrument Location Number Date Count (sec) F1le Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 Number Maximum Mean Std Dev 30 707 477 129 NO001777.7 30 05-Nov-02 2.31E+02 30 11 2200 0.226 308 126 BETA Other (expl 540.81 NO001777-7 31 05-Nov-02 2.46E+02 30 11 2200 0.226 324 126 BETA Other (expl 589.97 NO00177777 32 05-Nov-02 2.45E+02 30 11 2200 0.226 346 126 BETA Other (expl 505.69 NO00177777 33 05-Nov-02 2.43E+02 30 11 2200 0.226 328 126 BETA Other (expl 554.85 N000177777 34 05-Nov-02 2.43E+02 30 11 2200 0.226 298 126 BETA Other (expl 660.21 NO00177.77 35 05-Nov-02 2.70E+02 30 11 2200 0.226 346 126 BETA Other (expl 681.28 NO00177777 36 05-Nov-02 2.25E+02 30 11 2200 0.226 314 126 BETA Other (expl 477.60 NO00177777 37 05-Nov-02 2.25E+02 30 11 2200 0.226 362 126 BETA Other (expl 309.03 NO00177777 38 05-Nov-02 2.59E+02 30 11 2200 0.226 354 126 BETA Other (expl 575.92 NO00177777 39 05-Nov-02 2.63E+02 30 11 2200 0.226 324 126 BETA Other (expl 709.37 NO00177-77 40 05-Nov-02 2.49E+02 30 11 2200 0.226 274 126 BETA Other (expl 786.63 NO01ZZ7777 41 05-Nov-02 2.56E+02 30 11 2200 0.226 382 126 BETA Other (expl 456.52 NO00177777 42 05-Nov-02 2.51 E+02 30 11 2200 0.226 280 126 BETA Other (expl 779.60 NO00177777 43 05-Nov-02 2.36E+02 30 11 2200 0.226 344 126 BETA Other (expl 449.50 NO00177ZZ7 44 05-Nov-02 2.46E+02 30 11 2200 0.226 360 126 BETA Other (expl 463.55 NO001777.7 45 05-Nov-02 2.27E+02 30 11 2200 0.226 354 126 BETA Other (expl 351.17 N000177777 46 05-Nov-02 2.54E+02 30 11 2200 0.226 332 126 BETA Other (expl 618.06 NO00177777 47 05-Nov-02 2.35E+02 30 11 2200 0.226 328 126 BETA Other (expl 498.67 NO00177777 48 05-Nov-02 2.19E+02 30 11 2200 0.226 366 126 BETA Other (expl 252.84 NO00177777 49 05-Nov-02 2.57E+02 30 11 2200 0.226 338 126 BETA Other (expl 618.06 NO00177777 50 05-Nov-02 2.18E+02 30 11 2200 0.226 382 126 BETA Other (expl 189.63 NO00177777 51 05-Nov-02 2.65E+02 30 11 2200 0.226 312 126 BETA Other (expl 765.56 NO00177777 52 05-Nov-02 2.73E+02 30 11 2200 0.226 362 126 BETA Other (expl 646.16 NO0177777. 53 05-Nov-02 2.37E+02 30 11 2200 0.226 308 126 BETA Other (expl 582.95 NO00177777 54 05-Nov-02 2.91E+02 30 11 2200 0.226 378 126 BETA Other (expl 716.39 NO00177777 55 05-Nov-02 2.40E+02 30 11 2200 0.226 402 126 BETA Other (expl 273.91 NO0017777 56 05-Nov-02 2.39E+02 30 11 2200 0.226 346 126 BETA Other (expl 463.55 N000177777 57 05-Nov-02 2.89E+02 30 11 2200 0.226 358 126 BETA Other (expl 772.58 Page 39 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Meaqurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 N000177777 58 05-Nov-02 2.87E+02 30 11 2200 0.226 362 126 BETA Other (expl 744.49 NOOOIZZ77. 59 05-Nov-02 2.89E+02 30 11 2200 0.226 360 126 BETA Other (expl 765.56 Bkg.Loc.#N0001-O/H CeilingTiles in Statistical Summary dpm/100 cm 2 Number Maximum Mean Std Dev 30 787 560 169 N000177ZZZ 14 05-Nov-02 2.71E+02 30 10 2200 0.226 350 126 BETA Other (expl 674.25 N000177777 15 05-Nov-02 2.68E+02 30 10 2200 0.226 334 126 BETA Other (expl 709.37 N000177Z77 16 05-Nov-02 3.02E+02 30 10 2200 0.226 338 126 BETA Other (expl 934.12 N0001ZZZZZ 17 05-Nov-02 3.00E+02 30 10 2200 0.226 366 126 BETA Other (expl 821.74 N000177-77 18 05-Nov-02 2.70E+02 30 10 2200 0.226 338 126 BETA Other (expl 709.37 N0001ZZZ 19 05-Nov-02 2.81E+02 30 10 2200 0.226 330 126 BETA Other (expl 814.72 N0001ZZ777 20 05-Nov-02 2.47E+02 30 10 2200 0.226 390 126 BETA Other (expl 365.22 N0001ZZZZZ 21 05-Nov-02 2.52E+02 30 10 2200 0.226 414 126 BETA Other (expl 316.06 N0001ZZZ77 22 05-Nov-02 2.52E+02 30 10 2200 0.226 384 126 BETA Other (expl 421.41 NOOO1ZZZ 23 05-Nov-02 2.64E+02 30 10 2200 0.226 362 126 BETA Other (expl 582.95 N000177777 54 04-Nov-02 2.66E+02 30 9 2200 0.222 380 126 BETA Other (expl 543.40 N00017-777 55 04-Nov-02 2.74E+02 30 9 2200 0.222 390 126 BETA Other (expl 564.85 N0001ZZZZZ 56 04-Nov-02 2.96E+02 30 9 2200 0.222 454 126 BETA Other (expl 493.35 N00017-777 57 04-Nov-02 2.86E+02 30 9 2200 0.222 400 126 BETA Other (expl 614.90 N00017-777 58 04-Nov-02 2.60E+02 30 9 2200 0.222 394 126 BETA Other (expl 450.45 N0001777-7 59 04-Nov-02 2.59E+02 30 9 2200 0.222 376 126 BETA Other (expl 507.65 N000177777 60 04-Nov-02 2.76E+02 30 9 2200 0.222 370 126 BETA Other (expl 650.65 NOOOZ77777 61 04-Nov-02 2.60E+02 30 9 2200 0.222 308 126 BETA Other (expl 757.90 N000177777 62 04-Nov-02 2.388E+02 30 9 2200 0.222 310 126 BETA Other (expl 593.45 N000177777 63 04-Nov-02 2.63E+02- 30 9 2200 0.222 406 126 BETA Other (expl 429.00 N0001777-7 44 04-Nov-02 3.07E+02 30 9 2200 0.222 360 126 BETA Other (expl 908.05 N000177777 45 04-Nov-02 2.77E+02 30 9 2200 0.222 370 126 BETA Other (expl 657.80 NOOO1Z7777 46 04-Nov-02 2.87E+02 30 9 2200 0.222 344 126 BETA Other (expl 822.25 N000177777 47 04-Nov-02 2.73E+02 30 9 2200 0.222 398 126 BETA Other (expl 529.10 N0001Z777- 48 04-Nov-02 2.89E+02 30 9 2200 0.222 412 126 BETA Other (expl 593.45 Page 40 of 50

K., s ,"' e I -tI -4 C

Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efciency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 N000177ZZZ 49 04-Nov-02 2.51E+02 30 9 2200 0.222 360 126 BETA Other (expl 507.65 N00017ZZ77 50 04-Nov-02 2.66E+02 30 9 2200 0.222 366 126 BETA Other (expl 593.45 N0001777.7 51 04-Nov-02 2.49E+02 30 9 2200 0.222 342 126 BETA Other (expl 557.70 N0001ZZZZZ 52 04-Nov-02 2.36E+02 30 9 2200 0.222 314 126 BETA Other (expl 564.85 N00017777. 53 04-Nov-02 1.96E+02 30 9 2200 0.222 334 126 BETA Other (expl 207.35 BKG.PKG.#N0001-Painted Brick in R Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 30 934 597 169 NOOO17777 34 04-Nov-02 3.51E+02 30 8 2200 0.234 288 126 BETA Other (expl 1404.15 N00017ZZZZ 35 04-Nov-02 3.22E+02 30 8 2200 0.234 306 126 BETA Other (expl 1146.38 NO0IZ77777 36 04-Nov-02 3.40E+02 30 8 2200 0.234 350 126 BETA Other (expl 1119.25 NOO1ZZZZZ 37 04-Nov-02 3.5013+02 30 8 2200 0.234 324 126 BETA Other (expl 1275.27 NOOO1ZZ777 38 04-Nov-02 3.60E+02 30 8 2200 0.234 330 126 BETA Other (expl 1322.75 N0001?-777 39 04-Nov-02 3.44E+02 30 8 2200 0.234 294 126 BETA Other (expl 1336.32 N00Q1777Z7 40 04-Nov-02 3.52E+02 30 8 2200 0.234 326 126 BETA Other (expl 1282.05 NOOO17z7Z 41 04-Nov-02 3.01E+02 30 8 2200 0.234 328 126 BETA Other (expl 929.32 N000177777 42 04-Nov-02 3.34E+02 30 8 2200 0.234 370 126 BETA Other (expl 1010.72 NOOO1ZZZZZ 43 04-Nov-02 3.69E+02 30 8 2200 0.234 394 126 BETA Other (expl 1166.73 NOO017Z77Z 44 04-Nov-02 3.14E+02 30 8 2200 0.234 376 126 BETA Other (expl 854.70 N0001777Z7 45 04-Nov-02 3.1 1E+02 30 8 2200 0.234 362 126 BETA Other (expl 881.83 N0001ZZZZZ 46 04-Nov-02 3.0513+02 30 8 2200 0.234 410 126 BETA Other (expl 678.33 N000177777 47 04-Nov-02 3.21E+02 30 8 2200 0.234 406 126 BETA Other (expl 800.43 NOOOZZ7777 48 04-Nov-02 3.25E+02 30 8 2200 0.234 372 126 BETA Other (expl 942.88 N00017Z777 49 04-Nov-02 2.87E+02 30 8 2200 0.234 420 126 BETA Other (expl 522.32 N000177777 50 04-Nov-02 3.2213+02 30 8 2200 0.234 336 126 BETA Other (expl 1044.63 N000177777 51 04-Nov-02 3.1413+02 30 8 2200 0.234 404 126 BETA Other (expl 759.73 N000177777 52 04-Nov-02 2.99E+02 30 8 2200 0.234 332 126 BETA Other (expl 902.18 N000177777 53 04-Nov-02 3.0713+02 30 8 2200 0.234 382 126 BETA Other (expl 786.87 N0001777.7 54 04-Nov-02 2.99E+02 30 8 2200 0.234 384 126 BETA Other (expl 725.82 N000177777 55 04-Nov-02 3.25E+02 30 8 2200 0.234 412 126 BETA Other (expl 807.22 Page 41 of 50

6);0 f p Ie 7 C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw EMdency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/l0ocm2 N00017.7.7 56 04-Nov-02 3.02E+-02 30 8 2200 0.234 312 126 BETA Other (expl 990.37 N000177777 57 04-Nov-02 3.20E+02 30 8 2200 0.234 368 126 BETA Other (expl 922.53 N0001777.7 58 04-Nov-02 3.42E+02 30 8 2200 0.234 382 126 BETA Other (expl 1024.28 NOO17ZZ777 59 04-Nov-02 2.98E+02 30 8 2200 0.234 360 126 BETA Other (expl 800.43 NOOOZ77777 60 04-Nov-02 3.05E+02 30 8 2200 0.234 364 126 BETA Other (expl 834.35 N000177777 61 04-Nov-02 2.91E+02 30 8 2200 0.234 334 126 BETA Other (expi 841.13 N000177zz7 62 04-Nov-02 2.87E+02 30 8 2200 0.234 350 126 BETA Other (expl 759.73 N0001777-7 63 04-Nov-02 3.09E+02 30 8 2200 0.234 368 126 BETA Other (expl 847.92 Rm, B003/ Safety Office / Bare Surface Statistical Summary dpm/100 cmr Number Maximum Mean Std Dev 30 1404 957 217 N000177777 40 01-Nov-02 1.66E+02 30 5 2200 0.238 244 126 BETA Other (expl 293.45 N000177777 30 01-Nov-02 2.03E+02 30 5 2200 0.238 224 126 BETA Other (expl 606.91 N00017-777 31 01-Nov-02 2.24E+02 30 5 2200 0.238 254 126 BETA Other (expl 646.93 N0001777.7 32 01-Nov-02 1.70E+02 30 5 2200 0.238 196 126 BETA Other (expl 480.19 N000177777 33 01-Nov-02 1.66E+02 30 5 2200 0.238 256 126 BETA Other (expl 253.43 N0001Z7777 34 01-Nov-02 1.73E+02 30 5 2200 0.238 276 126 BETA Other (expl 233.43 N00017777? 35 01-Nov-02 1.88E+02 30 5 2200 0.238 272 126 BETA Other (expl 346.81 N000177777 36 01-Nov-02 1.82E+02 30 5 2200 0.238 222 126 BETA Other (expl 473.52 N000177.7, 37 01-Nov-02 1.77E+02 30 5 2200 0.238 268 126 BETA Other (expl 286.78 N0001777Z7 38 01-Nov-02 1.89E+02 30 5 2200 0.238 260 126 BETA Other (expl 393.49 N00017777 39 01-Nov-02 1.80E+02 30 5 2200 0.238 246 126 BETA Other (expl 380.15 N000177777 41 01-Nov-02 2.14E+02 30 5 2200 0.238 270 126 BETA Other (expl 526.88 NOOOZ77777 42 01-Nov-02 1.93E+02 30 5 2200 0.238 298 126 BETA Other (expl 293.45 N0001Z777Z 43 01-Nov-02 2.1 1E+02 30 5 2200 0.238 258 126 BETA Other (expl 546.89 N000177777 44 01-Nov-02 1.83E+02 30 5 2200 0.238 220 126 BETA Other (expl 486.86 N0001Z7777 45 01-Nov-02 1.61E+02 30 5 2200 0.238 256 126 BETA Other (expl 220.09 N0001Z7777 46 01-Nov-02 1.69E+02 30 5 2200 0.238 268 126 BETA Other (expl 233.43 N00017Z77Z 47 01-Nov-02 1.82E+02 30 5 2200 0.238 242 126 BETA Other (expl 406.83 NOOOZZ17 48 01-Nov-02 1.83E+02 30 5 2200 0.238 232 126 BETA Other (expl 446.85 Page 42 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (see) File Det Type (cld) (cpm) Area Measurem SurveyTyp dpm/lOOcm' N000177777 49 01-Nov-02 1.78E+02 30 5 2200 0.238 206 126 BETA Other (expl 500.20 N00017Z777 50 01-Nov-02 1.62E+02 30 5 2200 0.238 226 126 BETA Other (expl 326.80 N00017777 51 01-Nov-02 1.79E+02 30 5 2200 0.238 276 126 BETA Other (expi 273.44 NOOO1Z7777 52 01-Nov-02 1.93E+02 30 5 2200 0.238 246 126 BETA Other (expl 466.85 N00017Z777 53 01-Nov-02 1.92E+02 30 5 2200 0.238 246 126 BETA Other (expl 460.18 N000177777 54 01-Nov-02 1.86E+02 30 5 2200 0.238 230 126 BETA Other (expl 473.52 N000177777 55 01-Nov-02 1.86E+02 30 5 2200 0.238 226 126 BETA Other (expl 486.86 N000177777 56 01-Nov-02 2.10E+02 30 S 2200 0.238 206 126 BETA Other (expl 713.62 N000177777 57 01-Nov-02 1.57E+02 30 5 2200 0.238 278 126 BETA Other (expl 120.05 N0001ZZZZZ 58 01-Nov-02 1.65E+02 30 5 2200 0.238 192 126 BETA Other (expl 460.18 N000177777 59 01-Nov-02 1.80E+02 30 5 2200 0.238 234 126 BETA Other (expl 420.17 Poured Concrete Wall/Column HV/Co Statistical Summary dpm/100 cm2 Number Maximun n Mean Std Dev 30 714 409 137 N00017777Z 5 31-Oct-02 3.25E+02 30 3 2200 0.232 316 126 BETA Other (expl 1142.58 N0001777Z 7 31-Oct-02 3.18E+02 30 3 2200 0.232 384 126 BETA Other (expl 862.07 N0001ZZZZ7 9 31-Oct-02 3.16E+02 30 3 2200 0.232 326 126 BETA Other (expl 1046.80 N000177ZZ 11 31-Oct-02 2.50E+02 30 3 2200 0.232 306 126 BETA Other (expl 663.66 N0001777-7 13 31-Oct-02 3.27E+02 30 3 2200 0.232 278 126 BETA Other (expl 1286.26 NO001ZZZZZ7 15 31-Oct-02 2.66E+02 30 3 2200 0.232 290 126 BETA Other (expl 827.86 N0001777Z 17 31-Oct-02 2.33E+02 30 3 2200 0.232 222 126 BETA Other (expl 834.70 NO00017777 19 31-Oct-02 2.20E+02 30 3 2200 0.232 266 126 BETA Other (expl 595.24 N0001Z777Z 31 31-Oct-02 2.48E+02 30 3 2200 0.232 232 126 BETA Other (expl 903.12 NO OOIZZ 33 31-Oct-02 2.20E+02 30 3 2200 0.232 276 126 BETA Other (expl 561.03 NO000177Z 21 31-Oct-02 2.26E+02 30 3 2200 0.232 228 126 BETA Other (expl 766.28 N0001ZZZZZ 35 31-Oct-02 2.25E+02 30 3 2200 0.232 224 126 BETA Other (expl 773.13 N0001ZZZ 37 31-Oct-02 2.44E+02 30 3 2200 0.232 270 126 BETA Other (expl 745.76 N000177Z7Z 39 31-Oct-02 2.38E+02 30 3 2200 0.232 242 126 BETA Other (expl 800.49 NOOO1ZZZZ 41 31-Oct-02 2.24E+02 30 3 2200 0.232 232 126 BETA Other (expl 738.92 N0001 ZZZ 43 31-Oct-02 1.90E+02 30 3 2200 0.232 226 126 BETA Other (expl 526.82 Page 43 of 50

,-,I r C . , I Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/100cm 2 N00017777Z 45 31-Oct-02 1.16E+02 30 3 2200 0.232 214 126 BETA Other (expl 61.58 N00017-7777 23 31-Oct-02 2.05E+02 30 3 2200 0.232 282 126 BETA Other (expl 437.88 N00017ZZZZ 25 31-Oct-02 1.89E+02 30 3 2200 0.232 228 126 BETA Other(expl 513.14 N000177777 27 31-Oct-02 2.22E+02 30 3 2200 0.232 254 126 BETA Other (expl 649.97 N00017777Z 29 31-Oct-02 2.39E+02 30 3 2200 0.232 268 126 BETA Other (expl 718.39 N000177777 13 7-Nov-02 2.03E+02 30 13 2200 0.242 382 126 BETA Other (expl 78.71 N00017777Z 14 7-Nov-02 2.55E+02 30 13 2200 0.242 402 126 BETA Other (expl 354.19 N0001777IZ 15 7-Nov-02 2.69E+02 30 13 2200 0.242 356 126 BETA Other (expl 596.88 N00017Z77Z 16 7-Nov-02 3.0SE+02 30 13 2200 0.242 388 126 BETA Other (expl 728.06 N000177.777 17 7-Nov-02 2.95E+02 30 13 2200 0.242 370 126 BETA Other (expl 721.50 N0001777Z7 18 7-Nov-02 3.20E+02 30 13 2200 0.242 346 126 BETA Other(expl 964.19 N00017.777 19 7-Nov-02 2.94E+02 30 13 2200 0.242 436 126 BETA Other (expl 498.49 N00017Z-7Z 20 7-Nov-02 2.66E3+02 30 13 2200 0.242 342 126 BETA Other(expl 623.11 N00017Z77 21 7-Nov-02 2.24E+02 30 13 2200 0.242 308 126 BETA Other (expl 459.14 Bkg.Pkg. Noool-Resurvey of Pts.22-3 Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 30 1286 683 265 N0001ZZ7Z7 34 5-Nov-02 1.96E+02 30 12 2200 0.246 296 126 BETA Other (expl 309.72 N00017ZZZ 35 5-Nov-02 1.96E+02 30 12 2200 0.246 330 126 BETA Other (expl 200.03 N00O1777ZZ 36 5-Nov-02 1.68E+02 30 12 2200 0.246 374 126 BETA Other (expl -122.60 N0O1OZZ7ZZ 37 5-Nov-02 1.82E+02 30 12 2200 0.246 374 126 BETA Other (expl -32.26 N00017779, 38 5-Nov-02 2.24E+02 30 12 2200 0.246 358 126 BETA Other (expl 290.36 N000177Z7Z7 39 5-Nov-02 1.63E+02 30 12 2200 0.246 312 126 BETA Other (expl 45.17 N0001Z7ZZZ 40 5-Nov-02 1.82E+02 30 12 2200 0.246 324 126 BETA Other (expl 129.05 N00017ZZZZ 41 5-Nov-02 2.19E+02 30 12 2200 0.246 356 126 BETA Other (expl 264.55 N000177-77 42 5-Nov-02 1.82E+02 30 12 2200 0.246 368 126 BETA Other (expl -12.90 NO0017777Z 43 5-Nov-02 2.08E+02 30 12 2200 0.246 318 126 BETA Other (expl 316.17 N0001ZZZ 44 5-Nov-02 1.90E+02 30 12 2200 0.246 310 126 BETA Other (expl 225.84 N0001ZZZ7Z 45 5-Nov-02 1.69E+02 30 12 2200 0.246 302 126 BETA Other (expl 116.14 N00017777Z 46 5-Nov-02 1.52E+02 30 12 2200 0.246 310 126 BETA Other (expl -19.36 Page 44 of 50

.p,- I r ~ ... I , ,r, Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Samj ple Logged Time Raw Efficiency Background Instrument Location Numlber Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm' NO0017.77. 47 5-Nov-02 1.81E+02 30 12 2200 0.246 346 126 BETA Other(expl 51.62 NO001Z7777 48 5-Nov-02 1.78E+02 30 12 2200 0.246 306 126 BETA Other (expl 161.31 N000177.77 49 5-Nov-02 1.86E+02 30 12 2200 0.246 304 126 BETA Other (expl 219.38 NO001,7777 50 5-Nov-02 2.10E+02 30 12 2200 0.246 300 126 BETA Other (expl 387.15 NOOOZzZ777 51 5-Nov-02 1.57E+02 30 12 2200 0.246 284 126 BETA Other (expl 96.79 NO00177777 52 5-Nov-02 1.90E+02 30 12 2200 0.246 366 126 BETA Other (expl 45.17 NO001777Z- 53 5-Nov-02 1.78E+02 30 12 2200 0.246 284 126 BETA Other (expl 232.29 NOOO1Z7-7 54 5-Nov-02 1.76E+02 30 12 2200 0.246 314 126 BETA Other (expi 122.60 NO0017777 55 5-Nov-02 1.71E+02 30 12 2200 0.246 342 126 BETA Other (expl 0.00 N00017777 56 5-Nov-02 1.94E+02 30 12 2200 0.246 308 126 BETA Other (expl 258.10 NO00177ZZ7 57 5-Nov-02 1.96E+02 30 12 2200 0.246 324 126 BETA Other (expl 219.38 NO0017777 58 5-Nov-02 2.02E+02 30 12 2200 0.246 340 126 BETA Other (expl 206.48 NO00177777 59 5-Nov-02 1.64E+02 30 12 2200 0.246 332 126 BETA Other (expl -12.90 NO0001777 60 5-Nov-02 2.04E+02 30 12 2200 0.246 348 126 BETA Other(expl 193.57 NO0017ZZ7 61 5-Nov-02 2.OOE+02 30 12 2200 0.246 298 126 BETA Other (expl 329.07 NO00177777 62 5-Nov-02 1.79E+02 30 12 2200 0.246 290 126 BETA Other (expl 219.38 NO00177777 63 5-Nov-02 1.58E+02 30 12 2200 0.246 374 126 BETA Other (expl -187.12 Bsmt. SE Corridor - Tile Floor Statistical Summary dpm/100 cm' Number Maximum Mean Std Dev 30 387 142 142 nO00201fel 5 21-Nov-02 9.50E+01 10 24 .2200 0.232 306 126 BETA Characteriz 903.12 nO00201fel 6 21-Nov-02 9.10E+01 10 24 2200 0.232 306 126 BETA Characteriz 821.02 nO00201fel 7 21-Nov-02 8.00E+01 10 24 2200 0.232 306 126 BETA Characteriz 595.24 nO00201fel 8 21-Nov-02 9.00E+01 10 24 2200 0.232 306 126 BETA Characteriz 800.49 nO00201fel 9 21-Nov-02 8.50E+01 10 24 2200 0.232 306 126 BETA Characteriz 697.87 nO00201fel 11 21-Nov-02 6.40E+01 10 24 2200 0.232 343 126 BETA Characteriz 140.26 n000201fel 12 21-Nov-02 8.50E+01 10 24 2200 0.232 343 126 BETA Characteriz 571.29 nO00201fel 13 21-Nov-02 9.40E+01 10 24 2200 0.232 343 126 BETA Characteriz 756.02 nO00201fel 14 21-Nov-02 1.15E+02 10 24 2200 0.232 343 126 BETA Charactcriz 1187.06 nO00201fel 15 21-Nov-02 9.30E+01 10 24 2200 0.232 343 126 BETA Characteriz 735.50 Page 45 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efflciency Background Instrument Location Number Date Count (sec) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm2 nOO0201fel 16 21-Nov-02 8.90E+01 10 24 2200 0.232 343 126 BETA Characteriz 653.39 nOO0201fol 17 21-Nov-02 9.50E+01 10 24 2200 0.232 343 126 BETA Characteriz 776.55 nOO0201fel 18 21-Nov-02 9.50E+01 10 24 2200 0.232 343 126 BETA Characteriz 776.55 nOO0201fel 19 21-Nov-02 1.02E+02 10 24 2200 0.232 343 126 BETA Characteriz 920.22 nOO0201fel 20 21-Nov-02 9.80E+01 10 24 2200 0.232 343 126 BETA Characteriz 838.12 nO00201fel 52 21-Nov-02 7.30E+01 10 24 2200 0.232 343 126 BETA Characteriz 324.99 nO00201fel 53 21-Nov-02 8.90E+01 10 24 2200 0.232 306 126 BETA Characteriz 779.97 nOO0201fel 54 21-Nov-02 9.30E+01 10 24 2200 0.232 306 126 BETA Characteriz 862.07 nOO0201fel 55 21-Nov-02 7.20E+01 10 24 2200 0.232 306 126 BETA Characteriz 431.03 nO00201fel 56 21-Nov-02 1.19E+02 10 24 2200 0.232 306 126 BETA Characteriz 1395.73 nOO0201fel 57 21-Nov-02 6.40E+01 10 24 2200 0.232 306 126 BETA Characteriz 266.83 nOO0201fel 58 21-Nov-02 7.30E+01 10 24 2200 0.232 306 126 BETA Characteriz 451.56 nOO0201fel 59 21-Nov-02 8.60E+01 10 24 2200 0.232 306 126 BETA Characteriz 718.39 nOO0201fel 60 21-Nov-02 7.70E+01 10 24 2200 0.232 306 126 BETA Characteriz 533.66 nOO0201fel 61 21-Nov-02 5.90E+01 10 24 2200 0.232 306 126 BETA Characteriz 164.20 nOO0201fel 62 21-Nov-02 5.30E+01 10 24 2200 0.232 306 126 BETA Characteriz 41.05 nO00201fel 63 21-Nov-02 4.50E+01 10 24 2200 0.232 343 126 BETA Characteriz -249.73 nOO0201fel 64 21-Nov-02 4.80E+01 10 24 2200 0.232 343 126 BETA Characteriz -188.15 nO00201fel 65 21-Nov-02 4.20E+01 10 24 2200 0.232 343 126 BETA Characteriz -311.30 nOO0201fel 66 21-Nov-02 5.30E+01 10 24 2200 0.232 343 126 BETA Characteriz -85.52 Statistical Summary dpm/100 cm Number Maximum Mean Std Dev 30 1396 544 417 N000201FE2 22 06-Dec-02 1.04E+02 10 48 2200 0.227 300 126 Beta Characteriz 1132.79 N000201FE2 23 06-Dec-02 9.10E+01 10 48 2200 0.227 300 126 Beta Characteriz 860.08 N000201FE2 24 06-Dec-02 9.70E+01 10 48 2200 0.227 300 126 Beta Characteriz 985.94 N000201FE2 25 06-Dec-02 8.00E+01 10 48 2200 0.227 300 126 Beta Characteriz 629.33 N000201FE2 26 06-Dec-02 9.90E+01 10 48 2200 0.227 300 126 Beta Characteriz 1027.90 N000201FE2 27 06-Dec-02 9.70E+01 10 48 2200 0.227 300 126 Beta Characteriz 985.94 N000201FE2 28 06-Dec-02 1.08E+02 10 48 2200 0.227 300 126 Beta Characteriz 1216.70 Page 46 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efficiency Background Instrument Location Number Date Count (see) File Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 N000201FE2 29 06-Dec-02 1.02E+02 10 48 2200 0.227 300 126 Beta Characteriz 1090.83 N000201FE2 30 06-Dec-02 7.90E+01 10 48 2200 0.227 300 126 Beta Cbaracteriz 608.35 N000201FE2 31 06-Dec-02 9.50E+01 10 48 2200 0.227 300 126 Beta Cheracteriz 943.99 N000201FE2 32 06-Dec-02 7.90E+01 10 48 2200 0.227 300. 126 Beta Characteriz 608.35 N000201FE2 33 06-Dec-02 8.50E+01 10 48 2200 0.227 300 126 Beta Characteriz 734.21 N000201FE2 34 06-Dec-02 9.90E+01 10 48 2200 0.227 300 126 Beta Characteriz 1027.90 N000201FE2 35 06-Dec-02 9.30E+01 10 48 2200 0.227 300 126 Beta Characteriz 902.03 N000201FE2 36 06-Dec-02 1.24E+02 10 48 2200 0.227 300 126 Beta Characteriz 1552.34 N000201FE2 37 06-Dec-02 1.1OE+02 10 48 2200 0.227 300 126 Beta Characteriz 1258.65 N000201FE2 38 06-Dec-02 8.80E+01 10 48 2200 0.227 300 126 Beta Characteriz 797.15 N000201FE2 39 06-Dec-02 1.21E+02 10 48 2200 0.227 300 126 Beta Characteriz 1489.41 N000201FE2 40 06-Dec-02 9.80E+01 10 48 2200 0.227 300 126 Beta Characteriz 1006.92 N000201FE2 41 06-Dec-02 9.70E+01 10 48 2200 0.227 300 126 Beta Characteriz 985.94 N000201FE2 42 06-Dec-02 1.16E+02 10 48 2200 0.227 300 126 Beta Characteriz 1384.52 N000201FE2 43 06-Dec-02 1.O1E+02 10 48 2200 0.227 300 126 Beta Characteriz 1069.86 N000201FE2 44 06-Dec-02 1.07E+02 10 48 2200 0.227 300 126 Beta Characteriz 1195.72 N000201FE2 45 06-Dec-02 1.15E+02 10 48 2200 0.227 300 126 Beta Characteriz 1363.54 N000201FE2 46 06-Dec-02 9.50E+01 10 48 2200 0.227 300 126 Beta Characteriz 943.99 N000201FE2 47 06-Dec-02 1.17E+02 10 48 2200 0.227 300 126 Beta Characteriz 1405.50 N000201FE2 48 06-Dec-02 1.16E+02 10 48 2200 0.227 300 126 Beta Characteriz 1384.52 N000201FE2 49 06-Dec-02 1.18E+02 10 48 2200 0.227 300 126 Beta Characteriz 1426.47 N000201FE2 50 06-Dec-02 1.17E+02 10 48 2200 0.227 300 126 Beta Characteriz 1405.50 N000201FE2 51 06-Dec-02 1.20E+02 10 48 2200 0.227 300 126 Beta Characteriz 1468.43 N000201FE2 5 03-Dec-02 1.29E+02 10 38 2200 0.218 305 126 BETA Characteriz 1707.44 N000201FE2 6 03-Dec-02 1.21E+02 10 38 2200 0.218 305 126 BETA Characteriz 1532.69 NO00201FE2 7 03-Dec-02 1.08E+02 10 38 2200 0.218 305 126 BETA Chiaracteriz 1248.73 N000201FE2 8 03-Dec-02 1.03E+02 10 38 2200 0.218 305 126 BETA Characteriz 1139.51 N000201FE2 9 03-Dec-02 9.20E+01 10 38 2200 0.218 305 126 BETA Characteriz 899.23 N000201FE2 10 03-Dec-02 9.00E+01 10 38 2200 0.218 305 126 BETA Characteriz 855.54 N000201FE2 11 03-Dec-02 1.14E+02 10 38 2200 0.218 305 126 BETA Characteriz 1379.79 N000201FE2 12 03-Dec-02 1.23E+02 10 38 2200 0.218 305 126 BETA Characteriz 1576.38 Page 47 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Eiciency Background Instrument Location Number Date Count (sec) File Det Type (eld) (cpm) Area Measurem SurveyTyp dpm/100cm2 N000201FE2 13 03-Dec-02 8.90E+01 10 38 2200 0.218 305 126 BETA Characteriz 833.70 N000201FE2 14 03-Dec-02 9.00E-+01. 10 38 2200 0.218 305 126 BETA Characteriz 855.54 N000201FE2 15 03-Dec-02 9.80E+01 10 38 2200 0.218 305 126 BETA Characteriz 1030.29 N000201FE2 16 03-Dec-02 1.11E+02 10 38 2200 0.218 305 126 BETA Characteriz 1314.26 N000201FE2 17 03-Dec-02 1.08E+02 10 38 2200 0.218 305 126 BETA Characteriz 1248.73 N000201FE2 18 03-Dec-02 1.12E+02 10 38 2200 0.218 305 126 BETA Characteriz 1336.10 N000201FE2 19 03-Dec-02 9.90E+01 10 38 2200 0.218 305 126 BETA Characteriz 1052.13 N0002 Roof 01FE2 Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 45 1707 1131 278 N000201WE1 22 21-Nov-02 9.SOE+01 10 24 2200 0.232 357 126 BETA Characteriz 728.65 N000201WE1 23 21-Nov-02 8.10E+01 10 24 2200 0.232 357 126 BETA Characteriz 441.30 N000201WE1 24 21-Nov-02 8.20E+01 10 24 2200 0.232 357 126 BETA Characteriz 461.82 N000201WEI 25 21-Nov-02 1.02E+02 10 24 2200 0.232 357 126 BETA Characteriz 872.33 N000201WEI 26 21-Nov-02 9.20E+01 10 24 2200 0.232 357 126 BETA Characteriz 667.08 N000201WE1 27 21-Nov-02 8.00E+01 10 24 2200 0.232 357 126 BETA Characteriz 420.77 N000201WE1 28 21-Nov-02 9.70E+01 10 24 2200 0.232 357 126 BETA Characteriz 769.70 N000201WE1 29 21-Nov-02 1.04E+02 10 24 2200 0.232 357 126 BETA Characteriz 913.38 N000201WEI 30 21-Nov-02 9.40E+01 10 24 2200 0.232 357 126 BETA Characteriz 708.13 N000201WEI 31 21-Nov-02 8.30E+01 10 24 2200 0.232 357 126 BETA Characteriz 482.35 N000201WE1 32 21-Nov-02 8.80E+01 10 24 2200 0.232 357 126 BETA Characteriz 584.98 N000201WE1 33 21-Nov-02 9.40E+01 10 24 2200 0.232 357 126 BETA Characteriz 708.13 N000201WE1 34 21-Nov-02 8.40E+01 10 24 2200 0.232 357 126 BETA Characteriz 502.87 N000201WE1 35 21-Nov-02 1.08E+02 10 24 2200 0.232 357 126 BETA Characteriz 995.48 N000201WEI 36 21-Nov-02 9.90E+01 10 24 2200 0.232 357 126 BETA Characteriz 810.76 N000201WE1 37 21-Nov-02 8.70E+01 10 24 2200 0.232 357 126 BETA Characteriz 564.45 N000201WE1 38 21-Nov-02 7.00E+01 10 24 2200 0.232 357 126 BETA Characteriz 215.52 N000201WEI 39 21-Nov-02 5.70E+01 10 24 2200 0.232 357 126 BETA Characteriz -51.31 N000201WEI 40 21-Nov-02 3.10E+01 10 24 2200 0.232 357 126 BETA Characteriz -584.98 N000201WEI 41 21-Nov-02 4.10E+01 10 24 2200 0.232 357 126 BETA Characteriz -379.72 Page 48 of 50

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Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Effciency Background Instrument Location Number Date Count (sec) F1ie Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 N000201WE1 42 21-Nov-02 3.80E+01 10 24 2200 0.232 357 126 BETA Characteriz -441.30 N000201WEI 43 21-Nov-02 6.50E+01 10 24 2200 0.232 357 126 BETA Characteriz 112.89 N000201WE1 44 21-Nov-02 8.60E+01 10 24 2200 0.232 357 126 BETA Characteriz 543.92 N000201WE1 45 21-Nov-02 9.00E+01 10 24 2200 0.232 357 126 BETA Characteriz 626.03 N000201WE1 46 21-Nov-02 7.80E+01 10 24 2200 0.232 357 126 BETA Characteriz 379.72 N000201WE1 47 21-Nov-02 6.40E+01 10 24 2200 0.232 357 126 BETA Characteriz 92.36 N000201WE1 48 21-Nov-02 7.40E+01 10 24 2200 0.232 357 126 BETA Characteriz 297.62 N000201W8I 49 21-Nov-02 6.40E+01 10 24 2200 0.232 357 126 BETA Characteriz 92.36 N000201W81 50 21-Nov-02 6.40E+01 10 24 2200 0.232 357 126 BETA Characteriz 92.36 N000201WEI 51 21-Nov-02 5.50E+01 10 24 2200 0.232 357 126 BETA Characteriz -92.36 Olwel,Olfel bldg ext,park lotsidewal Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 30 995 385 407 NO00177777 34 01-Nov-02 2.86E+02 30 4 2200 0.238 320 126 BETA Other (expl 840.34 N00177777 35 01-Nov-02 3.72E+02 30 4 2200 0.238 308 126 BETA Other (expl 1453.91 N00OO1Z_77 36 01-Nov-02 2.78E+02 30 4 2200 0.238 318 126 BETA Other (expl 793.65 N00177777 37 01-Nov-02 3.10E+02 30 4 2200 0.238 322 126 BETA Other (expl 993.73 NO00O17Z77 38 01-Nov-02 2.84E+02 30 4 2200 0.238 278 126 BETA Other (expl 967.05 N00017z777 39 01-Nov-02 3.03E+02 30 4 2200 0.238 278 126 BETA Other (expl 1093.77 NO00177777 40 01-Nov-02 2.6313+02 30 4 2200 0.238 298 126 BETA Other (expl 760.30 N001OZZZZZ 41 01-Nov-02 2.89E+02 30 4 2200 0.238 262 126 BETA Other (expi 1053.75 N00177777 42 01-Nov-02 2.79E+02 30 4 2200 0.238 342 126 BETA Other (expl 720.29 NO001Z77Z 43 01-Nov-02 2.72E+02 30 4 2200 0.238 262 126 BETA Other (expl 940.38 NO001777Z7 44 01-Nov-02 2.86E+02 30 4 2200 0.238 292 126 BETA Other (expl 933.71 NO0017ZZZ 45 01-Nov-02 3.42E+02 30 4 2200 0.238 356 126 BETA Other (expl 1093.77 NO00177777 46 01-Nov-02 2.99E+02 30 4 2200 0.238 282 126 BETA Other (expl 1053.75 NO0017-777 47 01-Nov-02 2.85E+02 30 4 2200 0.238 272 126 BETA Other (expl 993.73 N001777.-7 48 01-Nov-02 2.90E+02 30 4 2200 0.238 304 126 BETA Other (expl 920.37 NO00177777 49 01-Nov-02 2.9713+02 30 4 2200 0.238 296 126 BETA Other (expl 993.73 N0001777Z7 50 01-Nov-02 2.76E+02 30 4 2200 0.238 322 126 BETA Other (expl 766.97 Page 49 of 50

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( C Attachment 6: Summary of Total Surface Contaminatin Beta Measurements Count Sample Logged Time Raw Efciency Background Instrument Location Number Date Count (sec) Flle Det Type (c/d) (cpm) Area Measurem SurveyTyp dpm/lOOcm 2 N000177777 51 01-Nov-02 3.17E+02 30 4 2200 0.238 324 126 BETA Other (expl 1033.75 N000177777 52 01-Nov-02 2.98E+02 30 4 2200 0.238 346 126 BETA Other (expl 833.67 N0001-77.7 53 01-Nov-02 3.03E+02 30 4 2200 0.238 280 126 BETA Other (expl 1087.10 N000177777 54 01-Nov-02 2.74E+02 30 4 2200 0.238 266 126 BETA Other (expl 940.38 N0001777.7 55 01-Nov-02 2.64E+02 30 4 2200 0.238 284 126 BETA Other (expl 813.66 N00017z777 56 01-Nov-02 2.7113+02 30 4 2200 0.238 298 126 BETA Other (expl 813.66 N000177777 57 01-Nov-02 2.85E+02 30 4 2200 0.238 272 126 BETA Other (expl 993.73 N0001 7 58 01-Nov-02 3.02E+02 30 4 2200 0.238 356 126 BETA Other (expl 827.00 N000177777 59 01-Nov-02 3.16E+02 30 4 2200 0.238 344 126 BETA Other (expl 960.38 N0001777-7 60 01-Nov-02 2.82E+02 30 4 2200 0.238 312 126 BETA Other (expl 840.34 N000177777 61 01-Nov-02 3.00E+02 30 4 2200 0.238 296 126 BETA Other (expl 1013.74 N000177777 62 01-Nov-02 2.87E-+02 30 4 2200 0.238 270 126 BETA Other (expl 1013.74 N0001ZZZZZ 63 01-Nov-02 2.78E+02 30 4 2200 0.238 342 126 BETA Other (expl 713.62 Tile Walls V/S Rm B009 Statistical Summary dpm/100 cm 2 Number Maximum Mean Std Dev 30 1454 942 150 Page 50 of 50

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Attachment 7: Summar of Total Surface Contamination Alpha Meatsurements Sample Logged Count Efficlency Background Instrument Location Number Date Count T1me Raw File Det Type (c/d) (cpm) Area (cm 2 ) Measurement SurveyType dpm/100 cm 2 AOO01O1FOI 5 3-Dec-02 3.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 25.91 AOOO1OIFO1 6 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOlO1FO1 7 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOlOlFO1 8 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOlOIFO1 9 3-Dec-02 3.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 25.91 AOOOIOIFO1 10 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOIO1FOI 11 3-Dec-02 3.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 25.91 AOOOlOlFO1 12 3-Dec-02 2.00E-+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOlO1FO1 13 3-Dec-02 l.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIOIFO1 14 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOIOIFO1 15 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIOIFO1 16 3-Dec-02 2.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOIOIFO1 17 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOlO1FO1 18 3-Dec-02 2.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOlOlFO1 29 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOlOlFO1 30 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOIOIFOI 31 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIOIFO1 32 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOO1OlFO1 33 3-Dec-02 2.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOIO1FO1 34 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIO1FOI 35 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIOIFO1 36 3-Dec-02 0.OOE+O0 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOO1OIFOl 45 3-Dec-02 2.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOIO1FO1 46 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOO1FOl 47 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOlO1FOI 37 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOlOlFO1 38 3-Dec-02 2.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOIO1FO1 39 3-Dec-02 3.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 25.91 AOOOIOIFO1 40 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOIOIFO1 41 3-Dec-02 5.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 50.58 AOOOlOIFO1 42 3-Dec-02 2.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOIO1FOI 43 3-Dec-02 O.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 Page 1 of 20

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I r S I C C Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efficlency Background Instrument Location Number Date Count Time RawFile DetType (c/d) (cpm) Area (cm2 ) Measurement SurveyType dpm/100 cm2 AOOOIOIFO1 44 3-Dec-02 5.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 50.58 Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 33 51 7 16 AOOOlOlWO1 48 3-Dec-02 2.001E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOlOlWO1 49 3-Dec-02 2.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOO1OlWO1 50 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOO0l0lWOI 51 3-Dec-02 1.OOE3+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOlOlWO1 52 3-Dec-02 2.00OE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOO1O1WO1 53 3-Dec-02 0.OOE-I00 20 35 1200 0.193 2.7 126 ALPHA Characeriza -11.10 A000101WOI 54 3-Dec-02 2.001E+00 20 35 1200 0.193 2.7 126 ALPHA (haracteriza 13.57 AOO0Ol1WO1 55 3-Dec-02 1.OOH3+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOlOlWOl 56 3-Dec-02 2.001E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOlOlWOlI 57 3-Dec-02 0.OOE3+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOO1tO1WO1I 58 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOO1OWO1 59 3-Dec-02 2.001E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOO1OlWO1 60 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOlOlWO1 61 3-Dec-02 0.OOE3+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOlOlWO1 62 3-Dec-02 1.OOE-.-00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIO1W02 63 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOO1O1W02 64 3-Dec-02 2.00OE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOO1O1W02 65 3-Dec-02 I .O1+Q00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOO1O1W02 66 3-Dec-02 1.OOE3+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 A000101W02 67 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOO1O1W02 68 3-Dec-02 2.001E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 A000101W02 69 3-Dec-02 0.OOE3+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 A000101W02 70 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 A000101W02 71 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 A000101W02 72 3-Dec-02 1.OOE3+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 A000101WO2 73 3-Dec-02 3.001E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 25.91 Page 2 of 20

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I. p C C C Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count EMciency Background Instrument Location Number Date Count Time Raw File Det Type (cld) (cpm) Area (cm 2 ) Measurement SurveyType dpm/100 cm2 AOOOIOIW02 74 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIOIW02 75 3-Dec-02 2.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOlOlW02 76 3-Dec-02 3.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 25.91 AOOOlOlW03 19 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOlOlW03 20 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIOIW03 21 3-Dec-02 2.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOIOIW03 22 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIOIW03 23 3-Dec-02 2.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOIOIW03 24 3-Dec-02 O.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOIOIW03 25 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 A000101W03 26 3-Dec-02 2.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOlOlW03 27 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIOIW03 28 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOIOIW04 77 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIOIW04 78 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOIOIW04 79 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOlOlW04 80 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOIOIW04 81 3-Dec-02 O.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOlOIW04 82 3-Dec-02 2.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOIOIW04 83 3-Dec-02 4.00E+O00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 38.24 AOOOlOlW04 84 3-Dec-02 2.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 13.57 AOOOlOlW04 85 3-Dec-02 3.00E+O00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 25.91 A000101W04 86 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOIOIW04 87 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOlOlW04 88 3-Dec-02 3.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 25.91 AOOOIOIW04 89 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOIOIW04 90 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOlOlW04 91 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOlOlW04 92 3-Dec-02 4.00E+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 38.24 AOOOlOlW04 93 3-Dec-02 0.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza -11.10 AOOOlOlW04 94 3-Dec-02 1.OOE+00 20 35 1200 0.193 2.7 126 ALPHA Characteriza 1.23 AOOOlOlW04 95 3-Dec-02 2.00E+00 20 35 1200 0.193 2.7 126 ALPHA Charaeteriza 13.57 Page 3 of 20

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C C Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efciency Ba ckground Instrument Location Number Date Count Time Raw File Det Type (c/d) (cpm) Area (cm2) Measurement SurveyType dpml1O0 cm2 Statistical Summary dpm/100 cm 2 Number Maximum Mean Std Dev 58 38 4 13 A000201FOl 6 2-Dec-02 O.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201FO1 7 2-Dec-02 0.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201FOl 8 2-Dec-02 3.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 24.93 A000201F01 9 2-Dec-02 1.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201FOI 11 2-Dec-02 1.00E+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201FOl 12 2-Dec-02 1.00E+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201FOI 13 2-Dec-02 2.00E+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201FOI 14 2-Dec-02 5.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 49.86 A000201FOI 15 2-Dec-02 O.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201FOI 16 2-Dec-02 0.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201FOl 17 2-Dec-02 1.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201FOl 18 2-Dec-02 1.00OE+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201FOl 19 2-Dec-02 2.00E+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201FOI 20 2-Dec-02 3.00E+00 20 34 1200 0.191 126 Alpha Characteriza 24.93 A000201FOI 21 2-Dec-02 1.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201FOI 22 2-Dec-02 0.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201FOl 23 2-Dec-02 2.00E+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201FOI 24 2-Dec-02 4.00E+00 20 34 1200 0.191 126 Alpha Characteriza 37.40 A000201FOI 25 2-Dec-02 0.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201FOI 26 2-Dec-02 0.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201F01 27 2-Dec-02 3.00E+00 20 34 1200 0.191 126 Alpha Characteriza 24.93 A000201FOl 28 2-Dec-02 1.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201FOI 29 2-Dec-02 2.00E+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201FOI 30 2-Dec-02 3.00E+00 20 34 1200 0.191 126 Alpha Characteriza 24.93 A000201FO1 31 2-Dec-02 1.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201FOI 32 2-Dec-02 O.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201FOI 33 2-Dec-02 1.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 Page 4 of 20

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v. :. , 4 r - vf C : C Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efficiency Background Instrument Location Number Date Count Time Raw File Det Type (dd) (cpm) Area (cm2) Measurement SurveyType dpm/100 Cm2 A000201F01 34 2-Dec-02 3.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201F01 35 2-Dec-02 3.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201F01 36 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 37 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201F01 38 2-Dec-02 l.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 39 2-Dec-02 1.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 40 2-Dec-02 3.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201FO1 41 2-Dec-02 2.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201FO1 42 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201F01 43 2-Dec-02 0.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201FO1 44 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201F01 45 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FOl 46 2-Dec-02 1.001+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 47 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201F01 48 2-Dec-02 1.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FOI 49 2-Dec-02 4.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 37.40 A000201FO1 50 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 51 2-Dec-02 0.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201FO1 52 2-Dec-02 2.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201FOI 53 2-Dec-02 4.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 37.40 A000201FO1 54 2-Dec-02 5.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 49.86 A000201FOI 55 2-Dec-02 1.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 56 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201FO1 57 2-Dec-02 0.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201FOI 58 2-Dec-02 1.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201F01 59 2-Dec-02 0.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201FOI 60 2-Dec-02 2.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201FO1 61 2-Dec-02 4.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 37.40 A000201FOI 62 2-Dec-02 0.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201FO1 63 2-Dec-02 0.001+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201FOI 64 2-Dec-02 2.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201FO1 65 2-Dec-02 1.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 Page 5 of 20

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Attachment 7: Summary of Total Surface Contamination Alpha Mepsurements Sample Logged Count Efciency Background Instrument Location Number Date Count Time RawFle Det Type (c/d) (cpm) Area (cml) Measurement SurveyType dpm/100 cm 2 A000201F01 66 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201F01 67 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 68 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 69 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201FO1 70 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 71 2-Dec-02 1l.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 72 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201F01 73 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201F01 74 2-Dec-02 1l.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201F01 75 2-Dec-02 3.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201F01 76 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201F01 77 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201F01 78 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201FO1 79 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201FO1 80 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201FOI 81 2-Dec-02 3.00E-+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201F01 82 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201F01 83 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 84 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201FOI 85 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201F01 86 2-Dec-02 1l.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 87 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201F01 88 2-Dec-02 3.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201FO1 89 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201F01 90 2-Dec-02 1l.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201F01 91 2-Dec-02 1l.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201F01 92 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201F01 93 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 94 2-Dec-02 2.00E+00 20 34 1200 0.19i 3 126 Alpha Characteriza 12.47 A000201FO1 95 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201FO1 96 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201FO1 189 2-Dec-02 3.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 Page 6 of 20

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Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efficlency Ba ckground Instrument Location Number Date Count Time Raw File DetType (c/d) (cpm) Area (cm 2) Measurement SurveyType dpm/100 cm2 Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 91 S0 4 15 A000201WO1 97 2-Dec-02 1.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201W01 98 2-Dec-02 0.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201WO1 99 2-Dec-02 0.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201W01 100 2-Dec-02 2.00E+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A00020IW0I 101 2-Dec-02 5.0013+00 20 34 1200 0.191 126 Alpha Characteriza 49.86 A00020IW0I 102 2-Dec-02 2.00E+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201WOI 103 2-Dec-02 1.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201W01 104 2-Dec-02 0.0013+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201WO1 105 2-Dec-02 0.OOE-+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201WO1 106 2-Dec-02 0.0013+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201WO1 107 2-Dec-02 2.0013+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201WO1 108 2-Dec-02 2.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201W01 109 2-Dec-02 1.0013+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201W01 110 2-Dec-02 5.003E+00 20 34 1200 0.191 126 Alpha Characteriza 49.86 A000201WO1 111 2-Dec-02 1.OOE+00 20 34 1200 0.191 126 Alpha Characteriza 0.00 A000201WO1. 112 2-Dec-02 0.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201WOI 113 2-Dec-02 0.0013+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201WO1 114 2-Dec-02 2.0013+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201WO1 115 2-Dec-02 0.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201W02 116 2-Dec-02 2.0013+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201W02 117 2-Dec-02 2.0013+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201W02 118 2-Dec-02 2.00E+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201W02 119 2-Dec-02 3.00E+00 20 34 1200 0.191 126 Alpha Characteriza 24.93 A000201W02 120 2-Dec-02 0.0013+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 A000201W02 121 2-Dec-02 2.0013+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201W02 122 2-Dec-02 2.0013+00 20 34 1200 0.191 126 Alpha Characteriza 12.47 A000201W02 123 2-Dec-02 O.OOE+00 20 34 1200 0.191 126 Alpha Characteriza -12.47 Page 7 of 20

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Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efflclency Background Instrument Location Number Date Count Time Raw File Det Type (e/d) (cpm) Aren (cem 2 ) Measurement SurveyType dpm/100 cm2 A000201W02 124 2-Dec-02 1.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W02 125 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W02 126 2-Dec-02 2.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W02 127 2-Dec-02 1.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W02 128 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W02 129 2-Dec-02 0.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W02 130 2-Dec-02 2.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W02 131 2-Dec-02 2.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W02 132 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W02 133 2-Dec-02 1.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W02 134 2-Dec-02 0.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W02 135 2-Dec-02 2.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W02 136 2-Dec-02 3.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201W02 137 2-Dec-02 O.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W02 138 2-Dec-02 3.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201W02 139 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W03 143 2-Dec-02 0.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W03 144 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W03 145 2-Dec-02 O.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W03 146 2-Dec-02 3.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201W03 147 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W03 148 2-Dec-02 0.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W03 149 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W03 150 2-Dec-02 3.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201W03 151 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W03 152 2-Dec-02 3.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201W03 153 2-Dec-02 1.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W03 154 2-Dec-02 0.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W03 155 2-Dec-02 2.0013+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W03 156 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W03 157 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W03 158 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 Page 8 of 20

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Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efficiency Background Instrument Location Number Date Count Time Raw File Det Type (dd) (cpnm) Area (cm 2) Measurement SurveyType dpm/100 cm 2 A000201W03 159 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W03 160 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W03 161 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W03 140 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W03 141 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W03 142 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 162 2-Dec-02 3.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201WO4 163 2-Dec-02 3.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201W04 164 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W04 165 2-Dec-02 3.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201W04 166 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 167 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 168 2-Dec-02 2.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 12.47 A000201W04 169 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W04 170 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W04 171 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 172 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W04 173 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 174 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201WO4 175 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 176 2-Dec-02 3.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201WG4 177 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 178 2-Dec-02 O.OOE+00 20 34 1200 0.19 3 126 Alpha Characteriza -12.47 A000201W04 179 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 180 2-Dec-02 0.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza -12.47 A000201W04 181 2-Dec-02 I.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 182 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 183 2-Dec-02 I.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 184 2-Dec-02 3.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 24.93 A000201W04 185 2-Dec-02 1.OOE+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 186 2-Dec-02 1.001+00 20 34 1200 0.191 3 126 Alpha Characteriza 0.00 A000201W04 187 2-Dec-02 4.00E+00 20 34 1200 0.191 3 126 Alpha Characteriza 37.40 Page 9 of 20

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Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efficiency Ba ckground Instrument Location Number Date Count Time Raw File Det Type (c/d) (cpm) Area (cm') Measurement SurveyType dpm/100 cm 2 Statistical Summary dpm/100 cm 2 Number Maximum Mean Std Dev 91 50 4 15 A000301FO1 3 4-Dec-02 1.OOE+00 20 41 1200 0.189 4 126 ALPHA Characteriza -4.20 A000301FO1 4 4-Dec-02 l.OOE+00 20 41 1200 0.189 4 126 ALPHA Characteriza -4.20 A000301FO1 5 4-Dec-02 O.OOE+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301F01 6 4-Dec-02 1.OOE-+00 20 41 1200 0.189 4 126 ALPHA Characteriza -4.20 A000301FO1 7 4-Dec-02 2.OOE+00 20 41 1200 0.189 4 126 ALPHA Characteriza 8.40 A000301F01 8 4-Dec-02 0.OOE+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301FO1 1 4-Dec-02 0.OOE+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301FO1 2 4-Dec-02 1.00E+00 20 41 1200 0.189 4 126 ALPHA Characteriza -4.20 Statistical Summary dpm/100 cm Number Maximum Mean Std Dev 8 8 -7 9 A000301W01 9 4-Dec-02 l.OOE+00 20 41 1200 0.189 4 126 ALPHA Characteriza 4.20 A000301W01 10 4-Dec-02 1.00E+00 20 41 1200 0.189 4 126 ALPHA Characteriza -4.20 A000301WO1 11 4-Dec-02 0.00E+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301W01 12 4-Dec-02 2.00E+00 20 41 1200 0.189 4 126 ALPHA Characteriza 8.40 A000301W01 13 4-Dec-02 O.OOE+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301WO1 14 4-Dec-02 1.00E+00 20 41 1200 0.189 4 126 ALPHA Characteriza -4.20 A000301W01 15 4-Dec-02 0.00E+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301W01 16 4-Dec-02 3.00E-+00 20 41 1200 0.189 4 126 ALPHA Characteriza 21.00 A000301W02 29 4-Dec-02 2.00E+00 20 41 1200 0.189 4 126 ALPHA Characteriza 8.40 A000301W02 30 4-Dec-02 3.00E+00 20 41 1200 0.189 4 126 ALPHA Characteriza 21.00 A000301W02 31 4-Dec-02 0.00E+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301W02 32 4-Dec-02 0.OOE+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301W03 17 4-Dec-02 1.00E+00 20 41 1200 0.189 4 126 ALPHA Characteriza -4.20 A000301W03 18 4-Dec-02 0.00E+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301W03 19 4-Dec-02 1.00E1+00 20 41 1200 0.189 4 126 ALPHA Characteriza -4.20 Page 10 of 20

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C Attachment 7: Summary of Total Surface Contamination Alpha Meaisurements Sample Logged Count Ecffiency Background Instrument Location Number Date Count Time Raw File Det Type (c/d) (cpm) Area (CM 2)

Measurement SurveyType dpm/100 cm2 A000301W03 20 4-Dec-02 1.0013+00 20 41 1200 0.189 4 126 ALPHA Characteriza -4.20 A000301W03 21 4-Dec-02 1.OOE3+00 20 41 1200 0.189 4 126 ALPHA Characteriza -4.20 A000301W03 22 4-Dec-02 0.OOE1+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301W03 23 4-Dec-02 2.0013+00 20 41 1200 0.189 4 126 ALPHA Characteriza 8.40 A000301W03 24 4-Dec-02 1.0011+00 20 41 1200 0.189 4 126 ALPHA Characteriza -4.20 A000301W04 25 4-Dec-02 0.OOE+O0 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301W04 26 4-Dec-02 0.OOE3+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301W04 27 4-Dec-02 0.0013+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 A000301W04 28 4-Dec-02 0.OOE3+00 20 41 1200 0.189 4 126 ALPHA Characteriza -16.80 Statistical Summary dpm/1OO cm2 Number Maximum Mean Std Dev 24 21 -6 12 A000302F01 5 4-Dec-02 2.0013+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302F01 6 4-Dec-02 5.0011+00 20 40 1200 0.189 4 126 ALPHA Characteriza 46.19 A000302F01 7 4-Dec-02 0.OOE3+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302F0I 8 4-Dec-02 0.0013+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302F01 9 4-Dec-02 2.00O3+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302F01 10 4-Dec-02 2.0013+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302F01 11 4-Dec-02 3.0013+00 20 40 1200 0.189 4 126 ALPHA Characteriza 21.00 A000302F01 12 4-Dec-02 2.001E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302F01 13 4-Dec-02 1.001E+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302F01 14 4-Dec-02 2.0013+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302F01 15 4-Dec-02 0.001E+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302F01 16 4-Dec-02 5.0013+00 20 40 1200 0.189 4 126 ALPHA Characteriza 46.19 A000302F01 17 4-Dec-02 0.001E+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302F0I 18 4-Dec-02 1.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302F01 19 4-Dec-02 1.0013+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302F01 20 4-Dec-02 0.0013+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302F01 21 4-Dec-02 0.0013+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302F01 22 4-Dec-02 2.0013+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 Page 11 of 20

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- I Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efficiency Background Instrument Location Number Date Count Time Raw File Det Type (e/d) (cpm) Area (cm2) Measurement SurveyType dpm/100 cm 2 A000302F01 23 4-Dec-02 1.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza 4.20 A000302F01 24 4-Dec-02 4.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 33.59 A000302F01 25 4-Dec-02 2.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302F01 26 4-Dec-02 0.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302F01 27 4-Dec-02 2.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302F01 28 4-Dec-02 I.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302F01 29 4-Dec-02 3.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 21.00 A000302F01 30 4-Dec-02 4.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 33.59 A000302F01 31 4-Dec-02 1.001E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 4.20 Statistical Summary dpm/100 em 2 Number Maximum Mean Std Dev 27 46 5 19 A000302S01 76 4-Dec-02 2.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302S01 77 4-Dec-02 4.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 33.59 A000302S01 78 4-Dec-02 I.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 Statistical Summary dpm/100 cm' Number Maximum Mean Std Dev 3 34 13 19 A000302S02 65 4-Dec-02 2.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302S02 66 4-Dec-02 I.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302S02 67 4-Dec-02 1.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 Statistical Summary dpm/100 cm' Number Maximum Mean Std Dev 3 8 0 7 A000302S03 79 4-Dec-02 3.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 21.00 A000302S03 80 4-Dec-02 1.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302S03 81 4-Dec-02 1.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 Statistical Summary dpm/100 cm' Page 12 of 20

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Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count EMicency Background Instrument Location Number Date Count Time RawFile DetType (e/d) (cpm) Area (cm) Measurement SurveyType dpm/lOO cm2 Number Maximum Mean Std Dev 3 21 4 15 A000302S04 71 4-Dec-02 2.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302S04 72 4-Dec-02 1.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza 4.20 A000302SO4 73 4-Dec-02 0.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302S04 74 4-Dec-02 2.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302S04 75 4-Dec-02 0.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 Statistical Summary dpm/100 cm 2 Number Maximum Mean Std Dev 5 8 4 13 A000302S05 68 4-Dec-02 4.00E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 33.59 A000302S05 69 4-Dec-02 O.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302S05 70 4-Dec-02 1.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 Statistical Summary dIpm/100 cm 2 Number Maximum Mean Std Dev 3 34 4 26 A000302W01 32 4-Dec-02 0.001E+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W01 33 4-Dec-02 0.OOE3+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W01 34 4-Dec-02 0.OOE3+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W01 35 4-Dec-02 1.001E+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302W01 36 4-Dec-02 1.OOE3+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302W01 37 4-Dec-02 2.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302W01 38 4-Dec-02 1.OOE-I-00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302W01 39 4-Dec-02 0.OOE3+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W01 40 4-Dec-02 2.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302W01 41 4-Dec-02 2.001E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302W02 42 4-Dec-02 0.00E3+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W02 43 4-Dec-02 I .OOEi-00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 Page 13 of 20

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Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Eelency Background Instrument Location Number Date Count Time Raw File Det Type (e/d) (cpm) Area (Cm) Measurement SurveyType dpm/100 cm2 A000302W02 44 4-Dec-02 2.00OE+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302W02 45 4-Dec-02 2.001E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302W02 46 4-Dec-02 0.OOE3+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W02 47 4-Dec-02 0.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W02 48 4-Dec-02 1.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302W03 49 4-Dec-02 2.001E+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302W03 50 4-Dec02 1.OOE400 20 40 1200 0.189 4 126 ALPHA Characteriza 4.20 A000302W03 51 4-Dec-02 2.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302W03 52 4-Dec-02 L.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302W03 53 4-Dec-02 0.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W03 54 4-Dec-02 2.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302W03 55 4-Dec-02 2.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302W04 56 4-Dec-02 2.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza 8.40 A000302W04 57 4-Dec-02 0.OOE-I00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W04 58 4-Dcc-02 O.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W04 59 4-Dec-02 1.OOE3+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302W04 60 4-Dec-02 1.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302W04 61 4-Dec-02 1.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -4.20 A000302W04 62 4-Dec-02 0.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W04 63 4-Dec-02 0.OOE+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 A000302W04 64 4-Dec-02 0.OOE1+00 20 40 1200 0.189 4 126 ALPHA Characteriza -16.80 Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 33 8 -5 11 A000401FOI 54 04-Dec-02 3.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza 16.80 A000401OIFO 55 04-Dec-02 3.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza 16.80 AO0O401FOI 56 04-Dec-02 1.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 AOOO401FOI 57 04-Dec-02 2.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza 4.20 AOO0401OIFO 58 04-Dec-02 0.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza -21.00 A000401FO1 59 04-Dec-02 1.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 Page 14 of 20

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(7 Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efficiency Background Instrument Location Number Date Count Time RawFile DetType (e/d) (cpm) Area (cm) Measurement SurveyType dpm/lOO cm2 A000401FOI 60 04-Dec-02 2.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza 4.20 A000401F01 61 04-Dec-02 4.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza 29.39 A000401FO1 62 04-Dec-02 3.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza 16.80 A000401FO1 63 04-Dec-02 3.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza 16.80 A000401FO1 64 04-Dec-02 2.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza 4.20 A000401FO1 65 04-Dec-02 1.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 12 29 5 15 A000401WO1 66 04-Dec-02 2.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 4.20 A000401WO1 67 04-Dec-02 4.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 29.39 A000401WO1 68 04-Dec-02 0.OOE+00 20 42 1200 0.189 126 ALPHA Characteriza -21.00 A000401W01 69 04-Dec-02 2.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 4.20 A000401WO1 70 04-Dec-02 1.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -8.40 A000401WO1 71 04-Dec-02 5.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 41.99 A000401W01 72 04-Dec-02 3.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 16.80 A000401WO1 73 04-Dec-02 1.00E1+00 20 42 1200 0.189 126 ALPHA Characteriza -8.40 A000401W02 74 04-Dec-02 1.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -8.40 A000401W02 75 04-Dec-02 1.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -8.40 A000401W02 76 04-Dec-02 4.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 29.39 A000401W02 77 04-Dec-02 3.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 16.80 A000401W02 78 04-Dec-02 3.00E+00 20 42 1200 0.189 126 ALPHA Charactenza 16.80 A000401W02 79 04-Dec-02 3.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 16.80 A000401W03 80 04-Dec-02 3.OOE+00 20 42 1200 0.189 126 ALPHA Characteriza 16.80 A000401W03 81 04-Dec-02 6.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 54.59 A000401W03 82 04-Dec-02 4.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 29.39 A000401W03 83 04-Dec-02 5.OOE+00 20 42 1200 0.189 126 ALPHA Characteriza 41.99 A000401W03 84 04-Dec-02 2.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 4.20 A000401W03 85 04-Dec-02 3.OOE+00 20 42 1200 0.189 126 ALPHA Characteriza 16.80 A000401W04 86 04-Dec-02 2.OOE+00 20 42 1200 0.189 126 ALPHA Characteriza 4.20 Page 15 of 20

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Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efficlen4cy Background Instrument Location Number Date Count Time RawFlle DetType (c/d) (cpm) Area (cm2) Measurement SurveyType dpm/100 cm2 A000401W04 87 04-Dec-02 4.00E-+00 20 42 1200 0.189 5 126 ALPHA Characteriza 29.39 Statistical Summary dpm/100 icm' Number Maximum Mean Std Dev 22 55 15 19 A000402F01 1 04-Dec-02 1.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 A000402F01 2 04-Dec-02 2.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza 4.20 A000402F01 3 04-Dec-02 1.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 A000402F01 4 04-Dec-02 l.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 A000402F01 5 04-Dec-02 0.0013+00 20 42 1200 0.189 5 126 ALPHA Characteriza -21.00 A000402F01 6 04-Dec-02 O.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza -21.00 A000402F01 7 04-Dec-02 2.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza 4.20 A000402F01 8 04-Dec-02 O.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza -21.00 A000402F01 9 04-Dec-02 0.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza -21.00 A000402F01 10 04-Dec-02 0.0013+00 20 42 1200 0.189 5 126 ALPHA Characteriza -21.00 A000402F01 11 04-Dec-02 1.0013+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 A000402F01 12 04-Dec-02 0.0013+00 20 42 1200 0.189 5 126 ALPHA Characteriza -21.00 A000402F01 13 04-Dec-02 0.0013+00 20 42 1200 0.189 5 126 ALPHA Characteriza -21.00 Statistical Summary dpm/100 cm2 Numb er Maximum Mean Std Dev 13 4 -13 10 A000402S01 44 04-Dec-02 2.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza 4.20 A000402S01 45 04-Dec-02 5.0013+00 20 42 1200 0.189 5 126 ALPHA Characteriza 41.99 A000402S01 46 04-Dec-02 1.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 Statistical Summary dpm/100 cm 2 Number Maximum Mean Std Dev 3 42 13 26 A000402S02 47 04-Dec-02 3.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza 16.80 A000402S02 48 04-Dec-02 2.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza 4.20 Page 16 of 20

( ( C Attachment 7: Summary of Total Surface Contamination Alpha Me~asurements Sample Logged Count Efflcency Background Instrument Location Number Date Count Time RawrFile DetType (e/d) (cpm) Area (cm2) Measurement SurveyType dpm/100 cm2 A000402S02 49 04-Dec-02 3.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza 16.80 Statistical Summary dpml10O cm2 Number Maximum Mean Std Dev 3 17 13 7 A000402S03 50 04-Dec-02 1.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 A000402S03 51 04-Dec-02 1.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 A000402S03 52 04-Dec-02 2.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza 4.20 A000402S03 53 04-Dec-02 1.OOE+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 Statistical Summary dpm/100 cm' Number Maximum Mean Std Dev 4 4 -5 6 A000402W01 14 04-Dec-02 2.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 4.20 A000402W01 15 04-Dec-02 1.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -8.40 A000402W01 16 04-Dec-02 1.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -8.40 A000402W01 17 04-Dec-02 0.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -21.00 A000402W01 18 04-Dec-02 O.OOE+00 20 42 1200 0.189 126 ALPHA Characteriza -21.00 A000402W01 19 04-Dec-02 O.OOE+00 20 42 1200 0.189 126 ALPHA Characteriza -21.00 A000402W01 20 04-Dec-02 0.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -21.00 A000402W01 21 04-Dec-02 3.00E+00 20 42 1200 0.189 126 ALPHA Characeriza 16.80 A000402W01 22 04-Dec-02 1.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -8.40 A000402W0 1 23 04-Dec-02 2.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 4.20 A000402W02 24 04-Dec-02 1.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -8.40 A000402W02 25 04-Dec-02 1.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -8.40 A000402W02 26 04-Dec-02 0.OOE+00 20 42 1200 0.189 126 ALPHA Characteriza -21.00 A000402W02 27 04-Dec-02 0.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -21.00 A000402W02 28 04-Dec-02 0.OOE-+00 20 42 1200 0.189 126 ALPHA Characteriza -21.00 A000402W02 29 04-Dec-02 1.00E+00 20 42 1200 0.189 126 ALPHA Characteriza -8.40 A000402W03 30 04-Dec-02 2.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 4.20 A000402W03 31 04-Dec-02 2.00E+00 20 42 1200 0.189 126 ALPHA Characteriza 4.20 Page 17 of 20

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( C Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efficiency Background Instrument Location Number Date Count Time Raw File Det Type (c/d) (cpm) Area (cm2) Measurement SurveyType dpm/100 cm 2 A000402W03 32 04-Dec-02 2.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza 4.20 A000402W03 33 04-Dec-02 0.0013+00 20 42 1200 0.189 5 126 ALPHA Characteriza -21.00 A000402W03 34 04-Dec-02 2.0013+00 20 42 1200 0.189 5 126 ALPHA Characteriza 4.20 A000402W03 35 04-Dec-02 3.0013+00 20 42 1200 0.189 5 126 ALPHA Characteriza 16.80 A000402W03 36 04-Dec-02 0.OOE+00 20 42 1200 0.189 5. 126 ALPHA Characteriza -21.00 A000402W03 37 04-Dec-02 1.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 A000402W03 38 04-Dec-02 1.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 A000402W03 39 04-Dec-02 2.0013+00 20 42 1200 0.189 5 126 ALPHA Characteriza 4.20 A000402W04 40 04-Dec-02 1.0013+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 A000402W04 41 04-Dec-02 1.001E+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 A000402W04 42 04-Dec-02 1.001E+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 A000402W04 43 04-Dec-02 1.00E+00 20 42 1200 0.189 5 126 ALPHA Characteriza -8.40 Statistical Summary dpmI100 cm2 Number Maximum Mean Std Dev 30 17 -8 11 1B000101F170 9 6-Dec-02 O.OOE+00 20 51 1200 0.19 5 126 ALPHA Characteriza -20.89 B000101FOI 10 6-Dec-02 3.00E+00 20 51 1200 0.19 5 126 ALPHA Characteriza 16.71 BOOO1O1F01 11 6-Dec-02 O.OOE+00 20 51 1200 0.19 5 126 ALPHA Characteriza -20.89 B0O1OOIF01 12 6-Dec-02 0.00E+00 20 51 1200 0.19 5 126 ALPHA Characteriza -20.89 Statistical Summary dpmJ100 cm2 Number Maximum Mean Std Dev 4 17 -11 19 BOOO1O1WOi 13 6-Dec-02 1.0013+00 20 51 1200 0.19 5 126 ALPHA Characteriza -8.35 B000101W02 14 6-Dec-02 0.0013+00 20 51 1200 0.19 5 126 ALPHA Characteriza -20.89 BOOO1O1W03 15 6-Dec-02 1.0013+00 20 51 1200 0.19 5 126 ALPHA Characteriza -8.35 B000101W03 16 6-Dec-02 1.0013+00 20 51 1200 0.19 5 126 ALPHA Characteriza -8.35 BOOO1OIW03 17 6-Dec-02 0.0013+00 20 51 1200 0.19 5 126 ALPHA Characteriza -20.89 BOOO1O1W03 18 6-Dec-02 0.001+00 20 51 1200 0.19 S 126 ALPHA Characteriza -20.89 B000101W04 19 6-Dec-02 1.0013+00 20 51 1200 0.19 5 126 ALPHA Characteriza -8.35 Page 18 of 20

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(C C Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count Efficlen cy Background Instrument Location Number Date Count Time RawFile DetType (e/d) (cpm) Area (cm2) Measurement SurveyType dpm/100 cm2 Statistical Summary dpm/100 cm 2 Number Maximum Mean Std Dev 7 -8 -14 7 B000102FOI 5 6-Dec-02 1.00E-+O0 20 51 1200 0.19 5 126 ALPHA Characteriza -8.35 B000102FO1 4 6-Dec-02 0.OOE+00 20 51 1200 0.19 5 126 ALPHA Characteriza -20.89 Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 2 -8 -15 9 B000102WO1 6 6-Dec-02 8.00E+00 20 51 1200 0.19 5 126 ALPHA Characteriza 79.37 B000102W01 7 6-Dec-02 2.00E+00 20 51 1200 0.19 5 126 ALPHA Characteriza 4.18 B000102WO1 8 6-Dec-02 5.OOE+00 20 51 1200 0.19 5 126 ALPHA Characteriza 41.77 Statistical Summary dpm/100 cm2 Number Maximum Mean Std Dev 3 79 42 38 B000103FO1 21 6-Dec-02 6.00E+00 20 51 1200 0.19 5 126 ALPHA Characteriza 54.30 B000103WO1 22 6-Dec-02 1.OOE+00 20 51 1200 0.19 5 126 ALPHA Characteriza -8.35 B000103WO1 23 6-Dec-02 1.OOE+00 20 51 1200 0.19 5 126 ALPHA Characteriza -8.35 BO0O0103 W02 24 6-Dec-02 1.00E3+00 20 51 1200 0.19 5 126 ALPHA Characteriza -8.35 B000103W03 25 6-Dec-02 3.OOE+00 20 51 1200 0.19 5 126 ALPHA Characteriza 16.71 B000103W04 26 6-Dec-02 3.OOE3+00 20 51 1200 0.19 5 126 ALPHA Characteriza 16.71 Statistical Summary dpm/100 cm' Number Maximum Mean Std Dev 5 17 2 14 COGOlOOOH1 5 7-Dec-02 3.00E+00 20 52 1200 0.191 5 126 ALPHA Characteriza 16.62 C0001O0O101 6 7-Dec-02 0.OOE3+00 20 52 1200 0.191 5 126 ALPHA Characteriza -20.78 Page 19 of 20

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Attachment 7: Summary of Total Surface Contamination Alpha Measurements Sample Logged Count EI71ciency Background Instrument Location Number Date Count Time Raw File Det Type (dd) (cpm) Area (cm2 ) Measurement SurveyType dpm/100 cm 2 COOO101OH1 7 7-Dec-02 O.OOE+00 20 52 1200 0.191 5 126 ALPHA Characteriza -20.78 COOO1OlOHI 8 7-Dec-02 1.OOE+00 20 52 1200 0.191 5 126 ALPHA Characteriza -8.31 COOOO1OH1 9 7-Dec-02 1.OOE+00 20 52 1200 0.191 5 126 ALPHA Characteriza -8.31 COOOlOlOH1 10 7-Dec-02 4.00E+00 20 52 1200 0.191 5 126 ALPHA Characteriza 29.09 Statistical Summary dpm/100 cmn Number Maximum Mean Std Dev 6 29 -2 20 Page 20 of 20

Attachment 8: Summary of Gamma Exposure Rate Measurements Location Sample Nw Date Time Count Time Raw File of Det Type Count Typi Backgrouin Measureme SurveyType Micro R/hr N000201OLI 4 21-Nov-02 13:58-08 12 23 3300 FLDCT 0 Gamma Characterization 9.536297804 N000201OLI 5 21-Nov-02 13:58:28 12 23 3300 FLDCT 0 Gamma Characterization 10.04558396 N0002010LI 6 21-Nov-02 13:58:48 12 23 3300 FLDCT 0 Gamma Characterization 10.92743515 N000201OL1 7 21-Nov-02 13:59:08 12 23 3300 FLDCT 0 Gamma Characterization 10.69842729 N000201OLI 8 21-Nov-02 13:59:32 12 23 3300 FLDCT 0 Gamma Characterization 11.41621314 N0002010L1 9 21-Nov-02 13:59:50 12 23 3300 FLDCT 0 Gamma Characterization 10.83856643 N0002010L1 10 21-Nov-02 14:00:08 12 23 3300 FLDCT 0 Gamma Characterization 10.80096812 N0002010L1 It 21-Nov-02 14:00:28 12 23 3300 FLDCT 0 Gamma Characterization 12.8210226 N000201OLI 12 21-Nov-02 14:01:26 12 23 3300 FLDCT 0 Gamma Characterization 12.11349083 N000201OLI 13 21-Nov-02 14:02:14 12 23 3300 FLDCT 0 Gamma Characterization 1-1.80928635 N0002010L1 14 21-Nov-02 14:02:42 12 23 3300 FLDCT 0 Gamma Characterization 9.871264537 N000201OL1 15 21-Nov-02 14:03:06 12 23 3300 FLDCT 0 Gamma Characterization 11.18720527 N0002010L1 16 21-Nov-02 14:03:28 12 23 3300 FLDCT 0 Gamma Characterization 9.47819133 N000201OLI 17 21-Nov-02 14:03:56 12 23 3300 FLDCT 0 Gamma Characterization 11.11542669 N0002010LI 18 21-Nov-02 14:04:20 12 23 3300 FLDCT 0 Gamma Characterization 10.77020587 N0002010L1 19 21-Nov-02 14:04:42 12 23 3300 FLDCT 0 Gamma Characterization 12.53390826 N0002010Ll 20 21-Nov-02 14:05:00 12 23 3300 FLDCT 0 Gamma Characterization 13.10130089 N000201OLI 21 21-Nov-02 14:05:22 12 23 3300 FLDCT 0 Gamma Characterization 8.50747141 N000201OLI 22 21-Nov-02 14:05:48 12 23 3300 FLDCT 0 Gamma Characterization 10.38396872 N000201OLI 23 21-Nov-02 14:06:16 12 23 3300 FLDCT 0 Gamma Characterization 10.12078057 N000201OLI 24 21-Nov-02 14:06:38 12 23 3300 FLDCT 0 Gamma Characterization 11.2145495 N000201OLI 25 21-Nov.02 14:06:58 12 23 3300 FLDCT 0 Gamma Characterization 10.64032081 N000201OLI 26 21-Nov-02 14:07:22 12 23 3300 FLDCT 0 Gamma Characterization 11.91182719 N000201OLI 27 21-Nov-02 14:07:50 12 23 3300 FLDCT 0 Gamma Characterization 9.379068521 N000201OLI 28 21-Nov-02 14:08:12 12 23 3300 FLDCT 0 Gamma Characterization 9.553387944 N000201OLI 29 21-Nov-02 14:08:32 12 23 3300 FLDCT 0 Gamma Characterization 11.62471284 N000201OL1 30 21-Nov-02 14:08:54 12 23 3300 FLDCT 0 Gamma Characterization 12.14767111 N000201OLI 31 21-Nov-02 14:09:24 12 23 3300 FLDCT 0 Gamma Characterization 12.72873585 N000201OLI 32 21-Nov-02 14:09:44 12 23 3300 FLDCT 0 Gamma Characterization 12.9303995 N000201OLI 33 21-Nov-02 14:10:02 12 23 3300 FLDCT 0 Gamma Characterization 12.22628575 Statistical Summary micro-R/hr Number Maximum Mean Std Dev 30 13.1 11.1 1.20 Page 1 of 1

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Attachment 9: Gamma Spectral Analysis Results Summary, Licensed Radionucildes Identified In Sample Analysis Sample ID Description Quantity Sampled Datel Time Analysis Cs-137 Co-60 (VA-02-...) (g, ml, or no.) by Date uCl/g uCI/g Notes 0001 0/SO Hole#l / 1' - 5' 327.9 LCFinn 1 1/14@1030 11/25/02 1 OOO1A O/Sj Hole # I / I-5' (QC) 319.5 LCFinn 11/14@1030 11/25/02 _ I 0002 /SHole#1/ 3 '-6 'A 279.7 LCFinn I1/14(1035 11/25/02 1 0003 O/S@ Hole# 1 / 8 ' - 10 291.4 LCFinn 11/14@1043 11/25/02 1 0004 2/50 Hole #1 / 13 A- 15 328.1 LCFinn 11/1401047 11/25/02 _ 1 0005 0/S Hole#l / 18 'A- 20 309.4 LCFinn i1/14@1055 11/25/02 1 0006 0/S Hole #1/ 23 'A- 25 N/A LCFinn 11/14 1105 0007 O/SO Hole #1 / 28 ' - 30 280.9 LCFinn 11/1401112 11/25/02 _ 1 0008 O/SA Hole #1 /36 %-38 N/A LCFinn 11/1401125 0009/S@Hole#1 / 38 % -40 N/A LCFinn 11/1401127 _

0010 0/Se Hole #1 / 43 %- 45 276.7 LCFinn 11/1401147 11/25/02 1 0011 O/S@ Hole #1/ 48 %-S0 N/A LCFinn 11/1401158 _

001210/S@ Hole #1 / 53'%-S N/A LCFinn 11/1401210 ___

0013 O/S Hole #1 / 63 'A- 65 253.6 LCFinn 11/14 1230 11/25/02 -1 0014 O/S@ Hole #1 / 73 ' -75 N/A LCFinn 11/1401415 0015 O/S@ Hole #1 /83 '- 85 N/A LCFinn 11/14@1500 _

0016 O/SO Hole #1 / 93.5 - 95 298 LCFinn 11/1401530 11/25/02 1 0017 O/SO Hole #1 / 103 % -lOS N/A LCFinn 11 /1401555 0018 O/S@ Hole #1 / 113.5 - 115 N/A LCFinn 11/14@1640 0019 O/S@ Hole #1 / 123 ' - 125 LCFinn 11/14@1720 11/25/02 1 0020 0/S@ Hole #1 / 131 % - 132 N/A LCFinn Il/15@0835_ _

0021 I/S@ Hole #1 / 2 - 4 337.2 LCFinn 11/1701 145 11/25/02 1 0022 I/S @Hole #1 /4 - 8 335.7 LCFinn 11/1701152 11/25/02 1 0022A 1/SO Hole #1 /4 - 8 (QC) N/A LCFinn 11/17@1152 11/25/02 _

Notes: I = only naturally occurring radionuclides identified 2 = analysis was not used for the characterization O/S = outside I/S = inside O/S @ Hole #1,2.3,4 = EB-1,2,3.4 I/S @ Hole #1,2,3 = IB-1.2,3 NIA = Sample not analyzed Page 1 of 9

C ( (C Attachment 9: Gamma Spectral Analysis Results Summary.

Licensed Radionuclides Identified In Sample Analysis Sample ID Description Quantity Sampled Date/ Time Analysis Cs-137 Co-60 (VA-02-...) (g, ml, or no.) by Date uCi/g uCi/g Notes 0023 VS@ Hole#1 / 8 -10 331.2 LCFinn 11/17@1200 11/25/02 1 0024 IS Hole #1 /10- 12 351.6 LCFinn 11/17@1200 11/25/02 1 0025 VSS Hole #1 / 12 14 327.8 LCFinn 11/1781205 12/4/02 1 0026 VS R Hole #1 / 14 - 16 31 1.8 LCFinn 11/17@1205 12/4/02 1 0027 VS/@ Hole #1 / 16 - 18 349.7 LCFinn 11/17@1210 12/4/02 1 0028 VS @ Hole #1 / 18 - 20 323.2 LCFinn 11/17@1210 12/4/02 1 0029 VS/@ Hole #1 /20 - 22 309.2 ICFinn 11/17@1225 12/4/02 0030 IS @ Hole #1 /22 -24 299.6 LCFinn 11/17@1225 12/4/02 I 0031 V/S Hole #1/ 24 - 26 328.8 LCFinn 11/1721230 12/4/02 1 0032 V/S Hole #1/ 26 - 28 313.1 LCFinn 11/17@1230 12/4/02 _

0033 V/S Hole #1 / 28 - 30 340.7 LCFinn 11/17@1250 12/4/02 _

0034 VS @Hole #1 / 30 -32 296.1 LCFinn 1/17@1250 12/4/02 I 0035 V/S @ Hole #1 / 32 - 34 357.3 LCFinn 11/17@1300 12/4/02 1 0036 VS @ Hole #1 / 34 - 36 368.5 LCFinn 11/17 1300 .1214/02 1 0037 O/S @ Hole #2 /1 - 5 329.5 P.Szaro 11/18 0750 12/4/02 1 0037A O/S @Hole #2 / 1-5 (QC) 315.4 P.Szaro 11/18@)750 12/4/02 1 0038 O/S @ Hole #2 / 8 ' -10 341.1 P.Szaro 11/18@0800 12/4/02 0038A O/S @ Hole #2 / 8 'A - 10 (QC) 322.7 P.Szaro 111/18@0800 12/4/02 1 0039 O/S Hole #2 / 13 ' - 1S 330.4 P.Szaro 11/18t80815 12/4/02 1 0040 O/S @ Hole #2 / 18 'A - 20 372.9 P.Szaro 1I1/18c0825 12/4/02 _ I 0041 O/S ( Hole #2 / 23 'A - 25 379.7 P.Szaro 1 1/18@0840 12/4/02 1 0042 O/S @ Hole #2 28 'h - 30 320.7 P.Szaro 11/18@0850 12/4/02 1 0043 O/S @ Hole #2 / 33 'h - 35 328.9 P.Szaro 11/1880900 12/4/02 1 0044 O/S @ Hole #2 / 38 % -40 318 P.Szaro 11/18@0907 12/4/021 1 Notes: I = only naturally occurring radionuclides identified 2 = analysis was not used for the characterization O/S = outside I/S = Inside O/S @ Hole #1,2,3,4 = EB-1.2,3.4 US @ Hole #1,2,3 = lB-1,2,3 N/A = Sample not analyzed Page 2 of 9

4 Attachment 9: Gamma Spectral Analysis Results Summary.

Licensed Radlonuclides Identified in Sample Analysis Sample ID Description Quantity Sampled Date/ Time Analysis Cs-137 Co-60 (VA-02-...) (g, ml, or no.) b y Date uCI/g uClIg Notes 0045 0/S @ Hole #2 / 43 % - 45 319.9 P.Szaro 111/18@0920 12/4/02 1 0046 O/S @ Hole #2 / 48 ' - 50 314.9 P.Szaro 1l/18@0930 12/4/02 1 0047 0/S @ Hole #2 / 58 'A - 60 N/A P.Szaro 11/18@1000 0048 O/S t Hole #2 / 68 'A - 70 N/A P.Szaro 11/18@1050 0049 O/S @ Hole #2 / 78 % - 80 330.8 P.Szaro 11/18@1125 12/4/02 1 0050 0/S @ Hole #2 / 88 'A - 90 N/A P.Szaro 11/18@1145 0051 O/S 1 Hole #2 / 98 ' - 100 N/A P.Szaro 11/18@1200 0052 O/S @ Hole #2 / 100 'A - 110 365.9 P.Szaro 111/18@1215 12/4/02 1 0053 0/S @ Hole#3 1 3 ' - 5 310.3 P.Szaro 11/19 1300 12/4/02 1 0054 0/S @Hole#3 @ S - 7 319.8 P.Szaro 11/19@1300 12V/502 1 0054A O/S @ Hole#3 @5 - 7 (QC) 302.3 P.Szaro 111/19@1300 12/5/02 1 0055 0/S @ Hole#3 @ 8 'A - 10 N/A P.Szaro 11/19@1300 0056 O/S @ Hole#3 @ 10 - 12 N/A P.Szaro 111/19@1300 0057JO/S @ Hole#3@ 13 % - 15 N/A P.Szaro 11/19@1300 0058 0/S @ Hole#3 @ 18 - 20 350.2 P.Szaro 11/1991300 12/5/02 1

@ Hole#3 @ 20 - 22 00590/S N/A P.Szaro 11/19@1300 _

0060 0/S @ Hol#3 @ 23 'A -25 N/A P.Szaro 11/19@1300 _ _

0061 O/S @ Hole #3@ 28 ' - 30 344.1 P.Szaro 11/19@1300 12/5/02 1 0062 O/S @ Hole#3 @33 'A -35 N/A P.Szaro 111/19@1300 0063 O/S @ Hole #3!@ 38 - 40 N/A P.Szaro 11/19@1300 0064 O/S @ Hole#3 @43 ' - 45 315.8 P.Szaro 11/19@1300 12/5/02 _

0065 O/S ( Hole#3 @48 % - 50 N/A P.Szaro 11/19@1300 0066 O/S @ Hole#3 @58 'A - 60 N/A P.Szaro 11/19@1300 _

0067 O/S @ Hole#3 @ 68 A - 70 312.2 P.Szaro 11/200730 12/5/021 1 Notes: 1 = only naturally occurring radionuclides identified 2 = analysis was not used for the characterization O/S = outside I/S = inside O/S @ Hole #1,2,3,4 = EB-1.2.3,4 I/S @ Hole #1,2,3 = lB-1,2.3 N/A = Sample not analyzed Page 3 of 9

( 'C C Attachment 9: Gamma Spectral Analysis Results Summary, Licensed Radionucides Identifled in Sample Analysis Sample ID Description Quantity Sampled Date/ Time Analysis Cs-137 Co-60 (VA-02-...) (g, ml, or no.) by Date uCI/g uCl/g Notes 0068 O/S @Hole#3 @ 78 ' - 80 N/A P.Szaro 11/20 0730 0069 0/S @ Hol#3 88 A-90 N/A P.Szaro 11/20@0730 0070 O/S @ Hole#3 @98 ' - 100 344.3 P.Szaro 111/200730 12/5/02 0070A O/S @ HoI#3 e @98 'A - 100 (QC) 303.9 P.Szaro 11/20@0730 12/5/02 0071 I/S RX Bldg @Hole #3 /4 - 6' 324 J.Mucia 11/19@1300 12/5/02 0072 1/S RX Bldg @ Hole #3/ 6 - 8' 332.6 I.Mucia 11/19@1300 12/5/02 0073 I/SRXBIdg0JHoIe #3 / 8 - 10' 293.5 I.Mucia 11/19@1300 12/5/02 0074 VS RX Bldga Hole #3/ 10 - 12' 310.2 I.Mucia 11/19@1300 12/5/02 I 0075 I/S RX Bldg @ Hole #3 /12 - 14' 307.8 J.Mucia 11/19 1300 12/5/02 0076 1/SRXBldg Hole#3 / 14- 16' 356.1 J.Mucia 11/19@1300 12/5/02 1 0077 S RX Bldg @ Hole #3 / 16 - 18' 337.6 J.Mucia 11/19@1300 12/5/02 1 0078 VSSRXBldg@Hole#3 / 18-20' 320.5 J.Mucia 11/19@1300 12/5/02 0079 I/S RX Bldg @ Hole #3 / 20 - 22' 325.4 t.Mucia 11/19@1300 12/5/02 _ _ 1 0080 1S RX Bldg @ Hole #3 / 22 - 24' 345.2 J.Mucia 11/19@1300 12/5/02 1 0081 I/S RX Bldg t Hole #3 / 24 - 26' 288.9 J.Mucia 11/19@1300 12/5/02 1 0082 IS RX Bldg @ Hole #3 / 26 - 28' 297 J.Mucia 11/19@1300 12/5/02 0083 I/S RX Bldg @Hole #3 /28 - 30' 371.7 J.Mucia 11/19@1300 12/5/02 1 QC 0083A I/S RX Bldg @ Hole #3/28-30' (QC) 349.2 J.Mucia 11/19@1300 12/5/02 0084 1/S RX Bldg @Hole #3 /30 - 32' 305.1 J.Mucia 11/19@1300 12/5/02 0085 1S RX Bldg @Hole #3 / 32- 34' 278.9 J.Mucia 11/19@1300 12/5/02 00861US RX Bldg @ Hole #3 / 34 - 36' 311.7 J.Mucia 11/19@1300 12/5/02 0087 1/SRXBldg@Hole#2/4-6' 321.7 J.Mucia 11/19@1600 12/6/02 1 0088 1VS RX Bldg @ Hole #2 /6 - 8' 300.4 J.Mucia 11/19@1600 12/6/02 _ I1 0089 /S RX Bldg @ Hole #2 / 8 - 10' 311.3 J.Mucia 11/19@1600 12/6/02 1 Notes: 1 = only naturally occurring radionuclides Identified 2 = analysis was not used for the characterization O/S = outside I/S = Inside O/S @ Hole #1,2,3,4 EB-1,2,3,4 I/S @Hole #1,2,3 = lB-1,2,3 NIA = Sample not analyzed Page 4 of 9

C

(

Attachment 9: Gamma Spectral Analysis Results Summary, Licensed Radionuclides Identified In Sample Anal sis Sample ID Description Quantity Sampled Date/ Time Analysis Cs-137 Co-60 (VA-02-...) (g, ml, or no.) b Date uCI/g uC/g Notes 0090 IVS RX Bldg @ Hole #2 / 10 - 12' 346.1 J.Mucia 11/19@1600 12/6/02 1 0091 IS RX Bldg @ Hole #2 / 12 - 14' 341.1 J.Mucia 11/19@1600 12/6/02 1 QC 0091A I/S RX Bldg @ Hole #2/12-14'(QC) 299 J.Mucia 11/19@1600 12/6/02 1 0092 JVS RX Bldg 1 Hole #2 / 14 - 16' N/A J.Mucia 11/19@1600 0093 VS RX Bldg @ Hole #2 / 16 - 18' N/A J.Mucia 11/19@1600 _

0094 I/S RX Bldg @ Hole #2 / 18 - 20' 340.4 J.Mucia 11/19@1600 12/6/02 I 0095 IS RX Bldg @Hole#2 /20 - 22' 302.2 J.Mucia 11/19@1600 12/6/02 1 0096 VS RX Bldg @Hole #2 /22 - 24' 280.8 J.Mucia 11/19@1600 12/6/02 1 0097 IVS RX Bldg @ Hole #2 / 24 - 26' 324.3 J.Mucia 11/19!1600 12/6/02 _1 0098 /S RX Bldg 2 Hole #2 / 26 - 28' 345.6 J.Mucia 11/19@1600 12/6102 I 0099SVS RX Bldg @ Hole #2/ 28 - 30' 290.5 J.Mucia 11/19 1600 12/6/02 I OIO I/S RX Bldg Hole #2 /30 - 32' 302.6 J.Mucia 11/19@1600 12/6/02 1 0101 VS RXBldg 1 Hole #2 / 32 - 34' 352.6 JMucia 11/19@1600 12/6/02 1 0102 /S RX Bld a @Hole #2 /34 - 36' 354.5 JMucia 11/19@1600 12/6/02 1 0103 O/S Angle (under RX) 0 - 2' 310.3 J.Mucia 11/20@1300 11/25/02 1 0104 O/S Angle (under RX) 10 - 14' 305.2 JMucia 11/20@1300 11/25/02 1 0104A O/S Angle (under RX) 10 - 14'(QC) 313.3 I.Mucia 11/20@1 300 11/25/02 1 0105 O/S Angle (under RX) 20 - 24' 349.2 J.Mucia 11/20@1300 11/25/02 1 0106 O/S Angle (under RX) 30 - 34' 2275.8 J.Mucia 11/20@1300 11/25/02 1 0107 O/S Angle (under RX) 40 - 44' 330.6 J.Mucia 11/20@1300 11/25/02 I 0108 O/S Angle (under RX) 50 - 54' 299.4 J.Mucia 11/20@1300 11/24/02 I 0109 O/S Angle (under RX) 60 - 64' 316.6 J.Mucia 11/20@1300 11/24/02 1 0110 O/S Angle (under RX) 64 - 68' 324.2 I.Mucia 11/20@1300 11/24/02 I 0111 O/S Angle (under RX) 68 - 72' 377.8 J.Mucia 11/2 1@0800 11/24/02 I Notes: 1 = only naturally occurring radionuclides identified 2 = analysis was not used for the characterization OIS = outside I/S = Inside O/S @ Hole #1,2,3,4 = EB-1,2,3,4 I/S @ Hole #1,2,3 =1-1,2,3 N/A = Sample not analyzed Page 5 of 9

K C C

Attachment 9: Gamma Spectral Analysis Results Summary.

Licensed Radionuclides Identified In Sample Analysis Sample 11 Description Quantity Sampled Date/ Time Analysis Cs-137 Co-60 (VA-02-...) (g, ml or no.) by Date uCi/g uCiIg Notes 0112 0/S Angle (under RX) 72 - 76' 326 J.Mucia 111/21(0800 11/24/02 1 0113 OO/S Angie (under RX) 76 - 80' 317.9 J.Mucia 11/21@0800 11/24/02 _

0114 O/S Angle (under RX) 80 - 84' 321.7 J.Mucia 11/21@0800 11/24/02 1 0115 OtS Angle (underRX) 84 - 88' 374.6 J.Mucia 111/210800 11/24/02 0115A O/S Angle (under RX) 84 - 86' (QC) 308.1 J.Mucia 11/21 @0800 11/24/02 0116 O/S o-" Surface Loc.#1 254.3 P.Szaro 11/2021050 12/6/02 1 0117 0/S 6-12"SubsurfaceLoc.#l 287.8 P.Szaro 11/20@1050 12/6/02 1 0118 OfS 0-6" Surface Loc.#2 323.7 P.Szaro 11/20@1100 12/6/02 1 0119 0/S 6-12"SubsurfaceLoc.#2 304.8 P.Szaro 11/20@1100 12/6/02 0120 0/S 0-6" Surface Loc.#3 296.1 P.Szaro 11/20@1 110 12/6/02 1 0121 O/S 6-12" Subsurface Loc.#3 342.9 P.Szaro 11/20@1i10 12/6/02 I 0122 O/S 0-6" Surface Loc.#4 277.1 P.Szaro 11/2I 1155 12/6/02 -

0123 O/S 6-12" Subsurface Loc.#4 275 P.Szaro 11/20@1155 12/6102 2.70E-07 0124 O/S 0-6" Surface Loc.#5 256.9 P.Szaro 11/20@1215 12/6/02 1 012510/S 6-12_SubsurfaceLoc.#5 269.4 P.Szaro 11/20@1215 12/6/02 1 0125A O/S 6-12" Subsurface Loc.#5(QC) 271 P.Szaro 11/20@1215 12/6/02 1 0126 O/S 0-6" Surface Loc.#6 277 P.Szaro 11/20@1220 12/6/02 -

0127 O/S 6-12" Subsurface Loc.#6 283.2 P.Szaro 1i/20@1220 12/6/02 1 0128 0/S 0-6" Surface Loc.#7 248.9 P.Szaro i 1/20 1230 12/6/02 1 0129 O/S 6-12" Subsurface Loc.#7 271.5 P.Szaro 11/20@1230 12/7/02 1 0130 O/S 0-6" Surface Loc.#8 259.6 P.Szaro l 1/20c1240 12/7/02 _ = 1 0131 O/S 6-12" Subsurface Loc.#8 250.1 P.Szaro 11/20@1240 12/7/021 0132 0/S 0-6" Surface Loc.#9 263.1 P.Szaro 11/20@1255 12/7/02 0133 O/S 6-12" Subsurface Loc.#9 247 P.Szaro 11/20@1255 12/7/02 I Notes: I = only naturally occurring radionucildes identified 2 = analysis was not used for the characterization O/S = outside I/S = Inside O0S @Hole #1,2,3.4 = EB-1,2,3,4 I/S @ Hole #1,2,3 = B-1,2,3 N/A = Sample not analyzed Page 6 of 9

C Attachment 9: Gamma Spectral AnalysisResults Summary.

Licensed Radionuclides Identified In Sample Analysis Sample ID Description Quantity Sampled Datet Time Analysis Cs-137 Co-60 (VA-02-...) (g, ml, or no.) by Date uCi/g uCl/g Notes 0134 0/S 0-6" Surface Loc.#10 215.3 P.Szaro 1l/20@1310 12t7/02 I 0135 0/S 6-12"SubsurfaccLoc.#10 263.9 P.Szaro 11/20@1310 12/7/02 1 0136 O/S 0-6" Surface Loc.#1 1 243.9 P.Szaro 11/20 1325 12/7/02 I 0136A O/S 0-6" Surface Loc.#1 l(QC) 349.2 P.Szaro 1l/20@1325 12/7/02 1 0137 OS 6-12" Subsurface Loc.#1 1 262.3 P.Szaro 11/20@1325 12/7/02 I 0138 OIS 0-6" Surface Loc.#12 245.5 P.Szaro 111/20 1335 12/7/O2 I 0139 0/S 6-12" Subsurface Loc.#12 267.6 P.Szaro I 1/20(1335 12/7/02 1 0140 O/S 0-6"Surface Loc.#13 248.9 P.Szaro 11/20@1355 12/7/02 1 0141 O/S 6-12" Subsurface Loc.#13 273.5 P.Szaro 11/20@1355 12/7/02 _ 1_

0142 O/S0-6" Surface Loc.#14 241.6 P.Szaro 11/20@1435 12/7/02 1 0143 O/S 6-12" Subsurface Loc.#14 250.2 P.Szaro 1 1/20_1435 12/7102 1 0144 O/S 0-6"Surface Loc.#15 210.6 P.Szaro 11/20@1455 12/7/02 I 1_

0145 0/S 6-12"SubsurfaceLoc.#15 281 P.Szaro 11/20@1455 12/7/02 = 1 _

0146 O/S0 - SurfaceLoc.#16 225.2 P.Szaro 11/20@1515 12/7/O2 0146A 0/S 0-6" Surface Loc.#16 (QC) N/A P.Szaro 11/20@1515 0147 O/S 6-12" Subsurface Loc.#16 278.2 P.Szaro 11/20@1515 12/7/02 0148 O/S 0-6" Surface Loc.#17 267.6 P.Szaro 11/20@1545 12/7/02 1 0149 10S 6-12" Subsurface Loc.#17 279.7 P.Szaro 11/20@1545 12/7/02 0150 0/S 0-6" Surface Loc.#18 219.9 P.Szaro 11/20@1640 12/7/02 015110 S 6-12" Subsurface Loc.#18 279.4 P.Szaro I1/20(1640 12/7/02 0152 O/S 0-6"SurfaceLoc.19 294.1 P.Szaro 11/20@1645 12/7/02 0153 O/S 6-12" Subsurface Loc.#19 290 P.Szaro 11/201645 12/7/02 0154 O/S 0-6" Surface Loc.#20 283.7 P.Szaro 1/221a0800 12/7/02 0155 0/S 6-12" Subsurface Loc.#20 251.9 P.Szaro 11221@0800 12t7/02 Notes: I = only naturally occurring radionuclides identified 2 = analysis was not used for the characterization O/S = outside I/S = Inside O/S @ Hole #1,2,3,4 = EB-1.2,3,4 I/S @ Hole #1,2,3 = IB-1,2,3 N/A = Sample not analyzed Page 7 of 9

(.

(C C Attachment 9: Gamma Spectral Analysis Results Summary, Licensed Radionuclides Identified In Sample Anal ysis Sample ID Description Quantity Sampled Date/ Time Analysis Cs-137 Co-60 (VA-02-...) (g, ml, or no.) by Date uClIg uCi/g Notes 0156 10S 0-6" Surface Loc.#21 290.3 P.Szaro 11/21@0820 12/7/02 1 0156A 0/S 0-6" Surface Loc.#21 (QC) 321.7 P.Szaro 11/21@0820 12/7/02 1 0157 O/S 6-12" Subsurface Loc.#21 283.5 P.Szaro 11/21@0820 12/7/02 1 0158 0/s 0-6" Surface Loc.#22 294.8 P.Szaro 11/21@0845 t 217/02 1 0159 O/S 6-12" Subsurface Loc.#22 313.2 P.Szaro 11/21@0845 12/7/02 1 0160 O/S 0-6" Surface Loc.#23 295.3 P.Szaro 11/21@0935 12t7/02 I 0161 0/S 6-12"SubsurfaceLoc.#23 304.5 P.Szaro 11/21@0935 12/7/02 _

0162 O/S 0-6" Surface Loc.#24 340.9 P.Szaro I 1/21@0955 12702 1 0163 OS 6-12" Subsurface Loc.#24 262.5 P.Szaro 11/21@0955 12/7/02 1 0164 O/S 0-6" Surface Loc.#25 293 P.Szaro 11/21@1015 12/7/02 I 0165 O/S 6-12" Subsurface Loc.#25 306.5 P.Szaro 111/21@1015 12/7/02 I 0166 10S 0-6" Surface Loc.#26 269.9 P.Szaro 11/21 1040 127/02 0166A O/S 0-6" Surface Loc.#26 (QC) N/A P.Szaro 111/21@1040 .

0167 OtS 6-12" Subsurface Loc.#26 342.9 P.Szaro 11/21@1040 12/7/02 1 0168 O/S 0-6" Surface Loc.#27 259.1 P.Szaro 11/21@1055 1217/02 0169 OS 6-12" Subsurface Loc.#27 271.3 P.Szaro 11/2101055 12/7/02 I 0170 O/S 0-6" Surface Loc.#28 248.8 P.Szaro 11/21@1110 12/7/02 1 0171 O/S 6-12" Subsurface Loc.#28 251.2 P.Szaro 11/21@1110 12/8/02 1 0172 0/S 0-6" Surface Loc.#29 256.5 P.Szaro 11/21@1245 12/8/02 1 0173 O/S 6-12" Subsurface Loc.#20 273.5 P.Szaro 11/21@1245 12/8/02 1 0174 O/S 0-6" Surface Loc.#30 262.1 P.Szaro l1/21@1300 12/8/02 _ I1 0175 O/S 6-12" Subsurface Loc.#30 274.5 P.Szaro 11/21(g1300 12/8/02 1I 0175A 0/S 6-12" Subsurface Loc.#30 (QC) N/A P.Szaro _ 1/21(31300 _

0176 Ion Exchange Resin 335 P.Jones 11/25(1600 12/8/02 6.96E-07 1.80E-05S Notes: 1= only naturally occurring radlonuclides identified 2 = analysis was not used for the characterization O/S = outside I/S = Inside O/S @ Hole #1,2,3,4 = EB-1,2.3,4 I/S @ Hole #1.2,3 = IB-1,2,3 N/A = Sample not analyzed Page 8 of 9

( K C Attachment 9: Gamma Spectral Analysis Results Summary, Licensed Radlonuclides Identified in Sample Analysis Sample ID Description Quantity Sampled Date/ Time Analysis Cs-137 Co-60 (VA-02-...) (g, ml, or no.) by Date uCi/g uClIg Notes 0177 VA Box of Misc. Items I P.Jones 12/4/02 12/8/02 1, 2 0178 RX Cooler Pit (water) 250ml P.Jones 1 1/22@1600 12/8/02 1 0179 Vacuum Dust from I/S Corebores 355.5 P.Jones 11/19/0201400 12/8/02 1,2 0180 FloorDrain (DOOO1OIDO1) 230.3 P.Jones 12/6 0 16:30 12/8/02 1.55E-06 0181 Pebbles from Roof Surface (N0002) 430.7 P.Jones 12/6 @ 11:00 12/8/02 1 0182 DOOOIOID02 250 ml P.Jones 12/6013:00 12/8/02 _

0183 D000101D04 250 ml P.Jones 12/6013:00 12/8/02 1 0184 DOOOIOID05 250 ml P.Jones 12/6013:00 12/8/02 _ 1 0185 DOOOIOID06 250 ml P.Jones 12/6013:00 12/8/02 1 0186 DOOOlOID07 250 ml P.Jones 12/6013:00 12/8/02 1 0187 DOOOIOID08 250 ml P.Jones 12/6013:00 12/8/02 - -

0188 DOOO1OIDIO 250 ml P.Jones 12/6013:00 12/8/02 0189 Isotopic (Particle from Reactor Pool Floor) N/A P.Jones 12/8/02 7.39E-04 I Notes: 1 = only naturally occurring radionuclides identified 2 = analysis was not used for the characterization O/S = outside I/S = Inside 0/S @ Hole #1,2.3,4 = EB-1,2,3,4 I/S @ Hole #1,2,3 = 113-1,2,3 N/A = Sample not analyzed Page 9 of 9

EMC LABS, INC. Laboratory Report 9830 S. 51st Street, Suite B100, Phoenix, AZ 85044 0007204 Phone: 800-362-3373 or 480-940-5294 - Fax: (480) 893-1726 Bulk Asbestos Analvsis bv Polarized Lieht Mlcroscomv NVLAP#101926-0 Client THE ASSESSMENT GROUP Job# / P.O. #:

Address: 7364 N. 122ND AVE CIRCLE Date Received. 12/03/2002 OMAHA NE 68142 Date Analyzed 12/04/2002 Collected. 12/02/2002 Date Reported: 12/04/2002 Project Name/ OMAHA VAMC-REACIORROOM EPA Method: EPA 600/M4-82-020 Address: Submitted By: TOM W1LSON ColltcF- BtA' niatenmer Lab ED Sample Layer Name/ Asbestos Asbestos Type Non-Asbestos Client ED Location Sample Description Detected (%) Constituents 0007204-001 LAYER# I No I 12x2 FloorTile, Beige Speda Carouates Quart BioduTier eiD IW%

LAYER# 2 Yes Cuyatfllc 3% Cellulose Fibr 2K Mastic, Black Carbonatts BindwFille WA 0007204-002 LAYERN I Yes Chysotile 5%

2 12x12 FloraT, Blue Specks Carboanst+/-

Quart BiudelFllk 95WA LAYER 2 Yes Ckysotile 1A Mastic, Black Cabones Gypsu 0007204-003 Yes (hyatile 25Y 3 Fume Hood Side Psaue Black Quartz aGYW Binderfiller 75%A 0007204-004 Yesa Chrysotile 25%

4 Fue Hod Top Pacel, Black Q us B ;nDamer 75%

0007204-005 Yes auysoae 10%

S Pipe Wrap s Black, 8atIo, Calk GYPM Binden'illcr 90%A 0007204-006 No Cellulose F*:

, 40A 6 2:aCcdhgTa-,eWh MvierlWool 40%

Miute BindeFillr 20%

Page 1 of 2

EMC LABS, INC. Laboratory Report 9830 S. 51st Street. Suite B 109, Phoenix, AZ 85044 0007204 Phone: 800-362-3373 or 480-940-5294 - Fax: (480) 893-1726 Bulk Asbestos Analvsis by Polarized Lieht Microscopv NVLAP#101926-0 Client: THE ASSESSMENT GROUP Job# / P.O. #:

- Address: 7364 N. 122ND AVE CIRCLE Date Received: 12/03/2002 OMAHA NE 68142 Date Analyzed. 12/04/2002

- , Collected: 12/02/2002 Date Reported. 12/04/2002

.. . Project Name/ OMAHA VAMC-REACTOR ROOM EPA Method. EPA 6001M4-82-020 Address: Submitted By: TOM WILSON Collected By: Customer Lab I) Sample Layer Name / Asbestos Asbestos Type Non-Asbestos Client M Location Sample Description Detected (/) Constituents ZAi-_ - Signatory - Lab Director - Kurt Kettler Analyst - Kurt Kettler Page 2 of 2

EMC LABS, INC.

9830 South 5 1g Street. Suite B-109 I PHOENIX, ARIZONA 85044 480-940-5294 or 800-382-3373 I FAX 480-893-1728 amclabernclabs.com LEAD (Pb) IN PAINT CHIP SAMPLES EMC SOP METHOD #LO1/1 EPA SW-846 METHOD 7420 rPage 1lof EMC LAB 122543 DATE RECEIVED: 12/03/02 CLIENT: The Assessment Group REPORT DATE: 12/04/02 DATE OF ANALYSIS: 12/04/02 CLIENT ADDRESS: 7364 N. 1 2Vd Ave- Circle P.O. NO.:

Omalua,NE 68142 PROJECT NAME: Omaha VAMC-Reactor Room PROJECT NO

- IENS - I X 1 12/02 1 Paint-Beige-DumbwaiterFra m 0.0101.

2 12102 2 Paint-Beige-South Stairwell Door Frame 0.010 0.218 3 12/02 3 Paint-Beige-Room SW 2E-SE Corner Colu m 0.010 0.066 A I .xes u enMay Blas emole esults BR y Below A MRW >A~

t

Very Suaal Amourt Of Sampte Su&Wa. May Affect Resut The rport apples IDthe etandards or procedures Identiled end to the samples tested only. The test results ar not necessarily Indicative or representative of the quf es of the t om the sarple was taken or of epparently identical or siia prducts, nor do they.represent an ongoing qualty assurance program unless so noted.

Where t is noted that a sample with excessive substrate was submitied for lebor y anlysis. sucl nalys may be blesed. The eed contet of such sample nmayhI actality. be grater than reported EMC makes no warranty, ss or inplied, es to the accaacy of the anslysis of samples noted to have been submitted with excessive substae Resampling is nended In uh situations to verify oriinal laboratory esul Thes epos uare tWeeclusi le of e adssWed int d s nded upon t condion hat y winot be reprodedwholly or hi pat for advertlsfng rotewpoa ovir our sinture or In carectiqn with our name withoxi special writen permisslon. Samples not destrhyed In testing ae retained a maxinm of alxty (60 days.

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ANALYST:'- QA COORDINATORKO- -29_

Mark A.Rodocker Kurt Ketfler

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C C Alan J. Blotcky Research Reactor Facility Waste Disposition

.Surface % _ Pne-u _

a De a Lenth Wd Radiu Hiltht Am Dispoal Cnt Cwdnated sural Slt M esurfe Dp=... Em B ell Lwl Assurno preset Waste Waste Waste 2

(m) (m, (i) (m) (i ) Volume (in) (Y or N) Codt Type Tedvdnque Esimate E Estime Reeclor C f Y t vetylow WAter bwwTN* WA NtA WA NMA N/A WA con. 0.0% S Water l_l Discharge to Sewer mr ency (Fue) t 3.048 0.127 3.04 - 0.15 N 0.0% L metal Em (hew(Ful) Stog Pl2 3.048 0.127 3.048 0.15 N 0.0% L metal Eme (Fu) Store Pit S 3.048 0.127 3.048 - 0.15 N 0.0% L Metl I _ _ _

Cenbrl ThWO*le 4 0.078 0.07 Y E Alun*ium _ l_____to_____oe_

Size to 010in one dimensho and send to Gunfte & Conre US and 0/S Conreteut Envbrcae. Assumed Tenknd Reber 12.20 Y 100.0% E y Remove end Trash 18.30 dead poceof50%

Size to <10' in one dimension and 9se to Envirocare. Assumed Tar* 43 0.27 Y 100.0% E l dead spac of 50%

______Raft _______ _ 0.10 Y 1W0.0%

______ B Smo Cawblde w ______ _ 0.10Requires 010for l__ l_ transpoittoTypeBarnwell B Cask Requires Type B Cask Reflefr 1.092 0.584 1.2 Y 100.0% B CGt Out ahd TrashC 1.17 forbtbnport to BaNdwell Put inCask and DIspose of at Requires Type B Cask Com 0.70 Y 100.0% B Aluminum Badwell 0.70 for tramsporto Bamwel 2

2dge 0.7 0.3 0.42 Y 20.0% E Meal Wash 0.08 lSefhrt Sample soil for hard to deltdenudides after removal of te concrete P01tndoy CoamSte Soll 0.00 N 0.0% Sol 1600 _ l surroundingcore ITotals I I Pr and ENW roae Total Il Tots r2_~

Leeal LM-dfill 4 mi Page 4 of 4

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C Alan J. Blotcky Research Reactor Facility Waste Disposition I.-~.

(in) (in) j(i) f ...

IIPresent (M

Surface (fie) Volums(m') (Y orN)

I Code Iwat Type eoi Technique 1

a ndloseBrw~

Estimnate Lnfl W$

Estimate Estmae au~

AfO011- General! Are Rooms JSW2A & 5 2 _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _

0F For7 __ 5 _ 35.0 NWA N 0.0% X___ Tiled NIA ______

NrthWal_ __S 2 18.0 WA N 0.0% X- rwl WA______

OIMEs A7 2 14.0 WA N 0.0% X____ N/A __________

01Ootal522 10.0 WA N 0.0% X____ wll WA __________

0W kwe 4W eprt elf wll 122 24.0 WIA N_____ _ __ __ ______ llN/A Cabnetw __mik__4

_ 01 __

2____ _ _ __ _ _ __ _ _ __ _ _ __ _ _ __ A__ _

Ca i ew___k 6 0 __ __ _

, 0 _ _ __ _ __ _ _ _ _ _ _ _ _ _ __ _ A_ _ _ _ _ _ _

Cabint 4 1 8.0 4.001 N 00 __ odW __ _____

Electron microscope _ __ _ _ __W _ __ ___ __ __I_

ConcretelGlass OIO lw92.0 0.37 V 10.0% E. L -- covers_ Rod. Trash Coverm 0.37___________

OIO al11.0ot 2.0 22.0 WA N 0.0% X Bricitr-oncrete W/A __________

OW2Ed 11.0 2.0 22.0 N/A N 0.0% X Bricklronoreft WA ___

OV0SotVM11.0 2.0 22.0 WA N 0.0% X BakkConcree N/A ___ ______

01O fdd16.0 2.0 30.0 WA N 0.0% X BrckkConcete N/A ___ ______

OIT011102 Reactor FloorTrenche 10.0 0.08 V 20.0% E. L Bars Concretle Scarrfy1/2 cm) 0.05 4___thick___sndto OSImdhid1.10 N 0.0% R St"& LOWd NWA ___loadrecyder 01502 Reactor Console oiso3 Cabineft 2 _5 ___ 1. 2.50 N 0.0% R.SELL Steel & Electronics NWA ___JSell to Other Rx 2..01__ A 4.00 N 0.0% X Wood/Formica WAj_______

018041 East PngFt 2.5 4.0 2__0 10.0 IN __ ___ 10.0% E Concrete Scanrify(1/2 cm) 0.01 _ _ _ _ _ _ _ _ _ _ _ _ _ _

A0003 - Area I (SW2 Walk-n Uocler & Pk _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _

Tiled concrete/Giass Sub-floor walk-in coolei OIFOI Floor' 2 4 ___ N/A N 0.0% X Covers W/A Is not contarninated 01WOI North Wal 4 2 S WIA N 0.0% X BrickrConcrate WA_______

01ly2 EastWad 2 2 4 WA N 0.0% X SBlckC~oncreft N/A 011WOS South VM 4 - - 2 a NWA N 0.0% X BriclocJonarefe W/A_______

01W04 Westv/s 2 - - 2 4 WA N 0.0% X BFcICIon4crete, W/A______

01801 Pkt wkWik-inCooldw 80 N/A- N 0.0% X Concrete/UMea N/A___

lnteddled Drain.

Drain InPR surrounding Walk-in Travels- 5 meters to 001D o le 5 . -0.0761 0.09 N 0.% L Metal WA _____1.10 sanity Sewer.

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______"O___ ngth Rd idF Hegm ke Disposul Contunntion Coernawi BurblSls MatersUlurface DEnvroam Brnwel LandI Assumpions pn Wafte Waste Waste 4m) (m) (i) Cm) (nil) vo(um () (Yor N) Code Type Technie Estimate Estite EstImate

.(M3) (m) (mb A0003 - A2 (SWX;) Lob Aro wih Hoods l 01F0 _F7 35.0 N 0.0% X Tied Concrete N/A OtWOl Norh6Wal a 2 10.0 N 0.0% X Br/Concrete N/A 01WO7 E"WO 7 2 14.0 N 0.0% X_____ BCncet N/A 01W03 Soh Wa 5 2 10.0 N 0.0% X 8rkkConcrate N/A MetWOIN 71WO 2 14.0 NN _ 0.0% X BickConcrete N/A Dispose of enire Cut and Sized to <10 01801HMEF11. ____ 1 2 .0 3.00 Y 100.0% E Steel & Pist hood 3.00 for Envirocae l er 21S0.5 1 1 2.5 N 0.0% X_ Mel and Plastic N/A I _ _ _

01 1 4.0 N 0.0% X Wood & Glas N/A I I I _I 01S 7 __ __ N 0.0% X_ Wood &Gbe N/A r I_ _ _1 0150! _C_ N 0.0% X_ Wood & Gm N/A I II_ I 1I11M4 - 3 - 12.0 ____ Y 50.0 EConcrete Scabble .5an 0.30 _____

OWINthWi4 2 8.0 N 0.0 concrete N/A_ __

we~

OlYW0 WEastWed 3 - 2- .0N.0% xi __ on_____ __ _ _ __ _ __ _ __ _ _

I 4 21 e.o 8.01WO0Souh N 0% IX concrete NIA I III__

01WO48.W0 I I 21 N 0I°% IX CoT Letd N/A I e. I ____

I I S top V ( II I Wash &Remo"v If O1IPOI Ipsfde Or4VOI0) 16.2568 0.127 0.82 Y 3.0% E Metal & Lead $V 007 0.07 1 1 11 l _ _

01P2 _ _ _

edlow gsVults

_ _ _ __lla~ Il ~ 7I_0.127 I_ 1 1 1 O.S6 0.I35 I Y 100 I _Ld1OO% IE _ Metall l N/

'I 0.1 0.11 1 _ _

1 11 _ _

A0004 - A 2 (SW2E) I_

O1FOI11oR 6 1 31 l 15 lI N l 00% X I TiledCn lt N/A l 016 1 OIWOI North Wall 5 2 10 1 N 0I0% X BrkConcrt N/A 0.03 01WO2 EsWI 3 2 6 I I N I 00% X BI_____ ___I N/A l0.021 O1W03 South Wall 5 1 - 2 10 1 N 0I0% X Brk/Conret N/A 0.03 1 1 1 01WO4West WaI 3 2 6 I N 0I0% X BrikConcrete N/A 0.02 1 1 1 1 Dispose of tifters as Radioactive Trash then 01801 Hood EFIO 2 1 2 4 ____ 10.0% E.~L Steel & Plastic Dispose of Fitters) 0.40 _ _ 4.00 send remains to Lanii 01S02 Cainet 2.5 I1 1 Z62.5 II N 0.0% IX Wood & Gls I N/A 1 018O3SICabietwth2a1ks 4 1 1 4 lI N I 0.0% IX Wood&Counts j N/A Page 2 of 4

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( C Alan J. Blotcky Research Reactor Facillty Waste Disposition DWOI - Systems V__dtion above EF11 02438 0.457 45.72 N 0.0% A Mml Duct N/A Verdatbon above EF1O 0.2431 0.457 45.72 N 0.0% X Metal Duct N/A Remove ze Dead spaew Muflipler Cumrent Drsai Lines IVSRCA 79.0 0.051 0.64 Y 100.0% E Steemlastic drain systemn 1.28 2X PnersittoThuifwr System Cut into 4' Sections Dead space Multipler hlin ping hom 1 above core 24 0.051 0.19 Y 1O0.0% E Stel and sent to E-Cre 0.39 2X Cut hIlo 4' sections end sent to E-Care bagged as Dead space MuIplIer ReactorCoolart System 23 0.102 0.75 Y 100.0% E Steel asbestos 2.98 4X Remove resin and section metal to to itnone dIm1ensIon for Envlrocae MultipI#e for removal of IonE5chenMe 1.15 0.885"_ 1.13 Y 100.0% 5 steel dboa 1.809_ _ resin of 1.5X Assumed dead spaew

_____ ~c On M M~r 0.021 Y I 100.0%' E I"Metl&mr medial drain and trsh 1 0.07 after removal of 3X Page3 of 4

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Alan J. Blotcky Research Reactor Facility Waste Disposition Prcesing Sulae1f % MA L 4"WDon Lm Rdm VMHtM m Mx h fnnf Cotrnr~e &NSM ylb 1ffa DserL EnvFirn Banwl Lnd11i Asswpins F "so Waste Wasts Wasto (m) n(m) (im) (i) m Vo (me (Y o N) T Te Ile Estimate Estimate Estimate (m) m m Reador Canpone= _

V at very low Water IaM Tan WA WA WA NWA MA WA cYio. 0.0% S Watr l___ Discharge to Sewer Emegency (Fud8) Strae PR1 3.045 0.127 3.048 0.15 N 0.0% L Metal Emey(Fue) trae P1i2 3.048 0.127 S3.048 0.15 N 0.0% L Metal Emorgenc (Fuel) Stre PR 3 3.048 0.127 3.0485 0.15 N 0.0% L UetI Central Thimble 4 0.076 0.07 Y E Akxn ium Size b <10 hi one ldimension and send to Gurfe &Cancrete VS and O1S C aonoretePulteI Envirocare. Assumed TN* aN Rel._ 1220 Y 100.0% E Ee Remove and Trash 18.30 l l dead spae Of 80%

Size to-c10ohione dimension anid send to Envirocare. Assumed

_Tank 43 0.27 Y 100.0% E _ dead space of 50%

Cond________

________ CrsetRod 0.0 V 00.% 3aaro BronCabie

~ .10Requ~res; Type B Cask

.1

_____ for transport to Barnwell Requires Type B Cask Retleator 1.02 0.584 1 1.2 Y 100.0% B C/Akxnuml Cut Out and Trash l l1.17 for transport to Barnwell Put hi Cask and Dispose Of at Requires Type B Cask BreCor 0.70 Y 100.0% B Alumiuwm Barnwell 0.70 tortransportto Bamwell 2

2Brlde 0.7 0.3 0.42 Y 20.0% E Metl Wash 0.08 _ _ _

Sample soil for hard to dated nudides after Pc der. Solr

______ oetal olnntdSi .0 0,t N00 N 0.0% _ _ dmova Soil _ _____ 16.00 -surroundin of the corete cr Totals I IPrieus and E Tl M [46-M B Banw Tot a 2M Loa Landfmr a F Sm Pace 4 of 4

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Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 1 3/24/59 Application for Construction Permit and Blanton E. Russel M.D. Mr. Lyall 145 Utilization Facility License Submitted by The Johnson, USAEC Veterans Administration Hospital Omaha, Nebraska to the United States Atomic Energy Commission 2 6/21/63 Report of Reactor Incident Richard E. Ogborn, Mr. John Flora, 82 Resistors R67 and R68 in the Reactor Control M.D. Region 4 USAEC panel were found to be disengaged from the circuitry, the director of the hospital and the FBI were notified 3 12/1/64 Letter Requesting 50.59 Change to the Reactor Richard E. Ogborn, USAEC 146 Facility to replace recorders M.D., Alan J. Blotcky, and Arthur L. Dunn, Ph.D.

4 3/5/75 NRC Inspection Report No. 50-131/75-01 G.L. Madsen, NRC S.H. Birdzell 124 NOV for failure to perform contamination surveys License R-57 of the reactor area since 1973; failure to maintain records of interlock tests, and experiment evaluations; failure to have complete postings required by 10 CFR 19.11 5 3/27/75 Letter from the NRC accepting the response to G.L. Madsen, NRC S.H. Birdzell 138 response included commitment to perform the noncompliance identified in the letter dated weekly contamination surveys in Rx room and 3/5/75 adjacent laboratories, surveys will be recorded and records retained; records of Interlock tests will be recorded in rx log, records of experiment evaluations will be maintained in a separate file; 10 CFR part 19.11 postings have been posted 6 8/29/75 7/1/74 to 6/30/75 10 CFR 50.59 Report to the S.H. Birdzell, Hospital USNRC 109 NRC for License R-57 Director 7 3/31/76 NRC Inspection Report No. 50-131/76-01 J.A. Hind, NRC S.H. Birdzell 123 NOV for failure to submit the Material Status License R-57 safeguards Report (Form NRC-742) within 30 days after the period on 5 occasions (late submittals occurred between 1971 and 1975 varied from 3 to 19 days late)

Page 1 of 12

( IC C Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 8 4/7/76 Letter from VA to NRC identifying corrective S.H. Birdzell, Hospital J.A. Hind, NRC 137 actions Director 9 4/20/76 Letter from the NRC accepting the response to J.A. Hind, NRC S.H. Birdzell 136 the noncompliance identified in the letter dated safeguards 3/31/76 10 5/17/76 NRC Inspection Report No. 50-131/76-02 G.L. Madsen, NRC S.H. Birdzell 122 License R-57 11 711176 Statistical summary Report for personnel A.J. Blotcky USNRC 113 monitoring 12 7/27/76 711175 to 6/30/76 10 CFR 50.59 Report to the T.P. Mullon, Hospital USNRC 112 NRC for License R-57 Director 13 6/3177 NRC Inspection Report No. 50-131/77-01 G.L. Madsen, NRC T.P. Mullon, 121 License R-57 Hospital Director 14 7/25/77 7/11/76 to 6/30/77 10 CFR 50.59 Report to the T.P. Mullon, Hospital USNRC 111 NRC for License R-57 Director 15 7110/78 7/1/77 to 6130/78 10 CFR 50.59 Report to the T.P. Mullon, Hospital USNRC 110 NRC for License R-57 Director 16 8/14/78 NRC Inspection Report No. 50-13117801 G.L. Madsen, NRC T.P. Mullon, 120 NOV for failure to inspect 4 fuel elements for License R-57 Hospital Director swelling, cracks, corrosion, and pitting lAW TS Item D.3 during the 3rd qtr of 1977 17 9/8/78 Letter from the NRC accepting the response to G.L. Madsen, NRC T.P. Mullon, 135 the 9/14/78 NOV Hospital Director 18 5/10/79 Application for renewal of operating license No. R T.P. Mullon USNRC 25 57 19 6/8/79 NRC Facility License Amendment from License Robert W. Reid, T.P. Mullon, 134 No. R-57 Operating Reactors Hospital Director Branch #4 NRC 20 7/23/79 7/1/78 to 6/30/79 10 CFR 50.59 Report to the T.P.Mullon NRC region IV 133 18,390 kW-hrs NRC for License R-57 21 10129/79 NRC Inspection Report No. 50-131/79-01 G.L. Madsen, NRC T.P. Mullon, 119 License R-57 Hospital Director Page 2 of 12

C C Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 22 1/7/80 NRC Inspection Report for 11/27-28/79 J.A. Hind Dr. J.J. Matoole, 118 NOV for failure to submit a Material Status Inspection No. 50-131 License R-57 Acting Director Report, Form NRC-742 in accordance with 10 CFR 70.53 for the reporting period ending 9/30179... repeat of noncompliance 23 1/14/80 Letter reply to the NOV from NRC inspection J.J. Matoole, M.D. J.A. Hind, NRC 132 response to ensuring form NRC-742 is submitted conducted on November 27 and 28, 1979 within 30 days after 3/31, and 9/30 of each year.

24 7/21/80 7/1/79 to 6/30/80 10 CFR 50.59 Report to the R.L. Turcotte NRC region IV 131 15,700 kW-hrs NRC License R-57 25 2/26/81 NRC Inspection Report No. 50-131181-01 G.L. Madsen, NRC R.L. Turcotte, 117 License R-57 Hospital Director 26 7/10/81 7/1/80 - 6/30/81 10 CFR 50.59 Report to the R.L. Turcotte USNRC 108 NRC for License R-57 27 3/31/82 Reactor Safeguards Committee Notes A.J. Blotcky 80 28 6/14/82 Reactor Safeguards Committee Notes AJ. Blotcky 79 29 7/7/82 7/1/81 - 6/30/82 10 CFR 50 Report to the NRC R.L. Turcotte USNRC 107 7/81 - 6/82 = 11,800 kW-hrs, for License R-57 30 9/23/82 Reactor Safeguards Committee Notes A.J. Blotcky 78 6/15/82 new gauges installed at the input and output of the inline water filter. 7/6/82 water skimmer began sucking air due to a drop in tank water level. The drop in tank water level was due to a cracked 1/2' to 3/4" brass reducer installed when the new filter input gauge was installed. A new fitting was installed and water added to the pit.

31 10/22/82 NRC Inspection Report No. 50-131182-01 W.C. Seidle, NRC R.L. Turcotte, 116 License R-57 Hospital Director 32 12/30/82 Reactor Safeguards Committee Notes A.J. Blotcky 77 9/25/82 Rx water counted, no observable 1-131 peak found. Rx water analyzed for H-3 = 2.49 E 5 uCi/mI < less thant 10 CFR 20 3 E-3 uCi/ml allowable effluent concentration to unrestricted areas 10 CFR 20 App. B, Table II, Col.2 Page 3 of 12

( C Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 33 6/30/83 Reactor Safeguards Committee Notes A.J. Blotcky 75 5/2/83 PTS leaking to the point where samples could not be inserted 34 7/1/83 NUREG-0988 Safety Evaluation Report Related U.S. NRC Office of 140 to the renewal of the operating license for the Nuclear Reactor research reactor at the Omaha Veterans Regulation Administration Medical Center Docket No. 50-131 35 7/1/83 Technical Specifications Facility License R-57 for 144 TS for License Amendment 8 and 9 the Omaha Veterans Administration Medical Center TRIGA Reactor Facility Docket No. 50-131 Amendment No. 8 36 7/7/83 7/1/82 - 6/30183 10 CFR 50.59 Report to the R.L. Turcotte USNRC 106 7/82 - 6/83 = 7,670 kW-hrs, NRC for License R-57 37 8/8/83 Amendment 8 to License No. R-57, Omaha U.S. NRC Division of 141 License R-57 Amendment 8 Veterans Administration Medical Center Docket Licensing Darrell G.

No. 50-131 Renewal of Operating License Eisenhut 38 9/30/83 Reactor Safeguards Committee Notes A.J. Blotcky 73 7/5/83 PTS tube removed and leak tested, no leak, ball valve inserted in one leg to prevent hot moist air outside from being drawn into the terminus, which is at 9-10 degrees C, and condensing when system Is not being used.

39 11/17/83 Letter from A.J. Blotcky to Mr Thurtell, Omaha A-J. Blotcky Mr. Frank Thurtell 74 no record of this audit was found, only the letter Public Power District, regarding Mr. Thurtell to perform an annual audit of the reactor facility in accordance with TS paragraph 6.5.3 40 3/26/84 7/1/83 to 12/31/83 10 CFR 50.59 Report to the R.L. Turcotte NRC region IV 130 3,829.61 kW-hrs, no liquid effluents, airborne NRC License R-57 effluents < 0.05 Ci 41 3/27/84 Reactor Safeguards Committee Notes A.J. Blotcky 72 42 6/28/84 Reactor Safeguards Committee Notes A.J. Blotoky 71 150 ml of Rx water analyzed for alpha - none found 43 1/11/85 1984 10 CFR 50.59 Report to the NRC for R.L. Turcotte USNRC 104 1984 = 13,219.19 kW-hrs, no liquid effluents, License R-57 airborne effluents < 0.1 Ci Page 4 of 12

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Ch Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 44 3/25/85 Reactor Safeguards Committee Notes A.J. Blotcky 76 3/7/83 cuno filters replaced in water tx system 45 3/27/85 Reactor Safeguards Committee Notes A.J. Blotcky 70 12120/85 Compressor on water chiller threw a rod. Compressor turned off, new compressor ordered, reactor continued to be operated with water temp closely monitored in order to comply with Tech Spec.

46 8/14/85 NRC Inspection Report No. 50-131/85-01 E.H. Johnson, NRC R.L. Turcotte, 115 License R-57 Hospital Director 47 9/27/85 Reactor Safeguards Committee Notes A.J. Blotcky 69 9/16/85 PTS tube appeared to be leaking. Tube removed and tested w/ 50 lbs. pressure - no leaks. 9118/85 Ion exchange resin replaced because pH of water was around 7. After replacement pH was 5.3 9/20/85 PTS still leaking, epoxy removed, corrosion inside the tube, welding opened up a big crack. Layer of epoxy put around the tube, wrapped with 0.025 mm thick titanium and re-re-epoxied.

48 12/11/85 Reactor Safeguards Committee Notes A.J. Blotcky 68 49 2/14/86 1985 10 CFR 50.59 Report to the NRC for R.L. Turcotte USNRC 103 1985 = 13,614.18 kW-hrs, no liquid effluents, License R-57 airborne effluents <0.1 Ci 50 3/26/86 Reactor Safeguards Committee Notes A.J. Blotcky 67 51 3/26/86 1983 10 CFR 50.59 Report to the NRC for R.L. Turcotte USNRC 105 1983 = 3,829.61 kW-hrs, no liquid effluents, License R-57 airborne effluents < 0.1 Ci 52 12/18/86 Reactor Safeguards Committee Notes A.J. Blotcky 66 53 2/10/87 1986 10 CFR 50.59 Report to the NRC for R.L. Turcotte USNRC 102 1986 23,244.21 kW-hrs, no liquid effluents, License R-57 airborne effluents < 0.1 Ci 54 3/17/87 Reactor Safeguards Committee Notes A.J. Blotcky 65 55 5/20/87 NRC Inspection Report No. 50-131187-01 Lawrence A. Yandell, R.L. Turcotte, 114 NOV severity level IV for failure to have an License R-57 NRC Hospital Director operator requalification program since 1985; NOV severity level IV for failure to measure pH of the primary coolant water once every 2 weeks in January, February, March, May, and July 1986, and January 1987 Page5 of 12

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C Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 55 5/20/87 NRC Inspection Report No. 50-131/87-01 Lawrence A. Yandell, R.L. Turcotte, 114 NOV severity level IV for failure to have an License R-57 NRC Hospital Director operator requalification program since 1985; NOV severity level IV for failure to measure pH of the primary coolant water once every 2 weeks in January, February, March, May, and July 1986, and January 1987 56 6/12/87 Letter reply to the NOV from NRC Inspection R.L. Turcotte Lawrence A. 129 conducted on April 13 - 17, 1987 Yandell, Chief 57 6/17/87 Reactor Safeguards Committee Notes A.J. Blotoky 64 58 6/30/87 Letter from the NRC accepting the response to Lawrence A. Yandell, R.L. Turcotte, 128 the 5/20/87 NOV NRC Hospital Director 59 9/29/87 Reactor Safeguards Committee Notes A.J. Blotcky 63 60 12/23/87 Reactor Safeguards Committee Notes A.J. Blotcky 62 61 1/28/88 1987 10 CFR 50.59 Report to the NRC for R.L. Turcotte NRC Region IV 2 1987 = 17,559.43 kW-hrs, no liquid effluents, License R-57 Office of airborne effluents < 0.1 Ci Inforcement and Inspection 62 1/28/88 1987 10 CFR 50.59 Report to the NRC for R.L. Turcotte NRC region IV 127 1987 = 17,559.43 kW-hrs; no liquid effluents, License R-57 airborne effluents < 0.1 Ci 63 3/31/88 Reactor Safeguards Committee Notes A.J. Blotcky 61 64 6/30/88 Reactor Safeguards Committee Notes A.J. Blotcky 60 5/24/88 Rx water analyzed for H-3 and alpha, levels were well below MPC 65 9/29/88 Reactor Safeguards Committee Notes A.J. Blotaky 59 66 12/29/88 Reactor Safeguards Committee Notes A.J. Blotcky 58 11/15/88 Removed PTS tube to re-epoxy leak, 11/29/88 reinstalled PTS tube 67 1/13/89 1988 10 CFR 50.59 Report to the NRC for R.L. Turcotte NRC region IV 125 1988 = 23,838.64 kW-hrs; no liquid effluents, License R-57 airborne effluents< 0.1 Ci 68 3/27/89 Reactor Safeguards Committee Notes A.J. Blotcky 57 69 9/27/89 Reactor Safeguards Committee Notes A.J. Blotoky 55 911/89 General Atomics Installed a new NM 1000 neutron measureing system in parallel with existing system.

70 9/30/89 Reactor Safeguards Committee Notes A.J. Blotcky 56 Page 6 of 12

( C Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 71 11/17/89 NRC Inspection Report No. 50-131189-01 A.Bill Beach, NRC R.L. Turcotte, 126 I License R-57 Hospital Director 72 12120/89 Reactor Safeguards Committee Notes A.J. Blotcky 54 73 2/3/90 1989 10 CFR 50.59 Report to the NRC for R.L. Turcotte NRC Region IV 11989 = 13,192.99 kW-hrs, no liquid effluents, License R-57 Office of airborne effluents < 0.1 Ci. On 9/1/89 General Inforcement and Atomics installed a new GA NM-1000 neutron Inspection measureing system.

74 3/20190 Reactor Safeguards Committee Notes A.J. Blotcky 53 75 6/15/90 Reactor Safeguards Committee Notes A.J. Blotcky 52 76 8/21/90 Letter to NRC responding to a Notice of Violation R.L. Turcotte A. Bill Beach NRC 3 not applicable to the reactor license ( letter not from NRC inspection on 8/21/1990 License 26- Region IV dated so the date of the inspection was 00138-10 Division of assigned)

Radiation Safety 77 9/26/90 Reactor Safeguards Committee Notes A.J. Blotcky 51 78 12/24/90 Reactor Safeguards Committee Notes A.J. Blotcky 50 9/28/90 gears on the log N balancing motor replaced, 79 2/22/91 1990 10 CFR 50.59 Report to the NRC for R.L. Turcotte USNRC 24 License R-57 80 3/28/91 Reactor Safeguards Committee Notes A.J. Bloteky 49 81 4/12/91 Amendment 9 to Ucense No. R-57, Omaha U.S. NRC Office of Mr. R.L. Turcotte, 142 License R-57 Amendment 9 Veterans Administration Medical Center Docket Nuclear Reactor Director of No. 50-131 Renewal of Operating License Regulation Marvin M. Veterans Affairs Mendonca and Thomas Medical Center E. Murley 82 4/12/91 Safety Evaluation by the Office of Nuclear U.S. NRC 143 Reactor Regulation Related to Amendment No. 9 to Facility Operating License No. R-57 Department of Veterans Affairs Docket No. 50-131 83 6/28/91 Reactor Safeguards Committee Notes A.J. Blotcky 48 4/28/91 installed NM 1000 neutron monitoring system 84 9/4/91 Dose Rates off Old Lazy Susan removed on 8/66 26 Dose Rates 8/23/66 = 180 mR/hr, 8/13/91 = 2.5 mR/hr Page 7 of 12

i

( 'C C.

Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 85 9/27/91 Reactor Safeguards Committee Notes A.J. Blotcky 47 86 12/12/91 NRC Inspection Report 50-131/91-01 R.L. Turcotte L.J. Callan 23 no violations or deviations USNRC 87 12/19/91 Reactor Safeguards Committee Notes A.J. Blotcky 46 88 2/14/92 1991 10 CFR 50.59 Report to the NRC for R.L. Turcotte USNRC 22 License R-57 89 3/31/92 Reactor Safeguards Committee Notes A.J. Blotcky 45 Replaced 5 micron filters in water system, 3116/92 water leak in PTS prevented samples from going in, 3/17/92 tube removed, 3120/92 titanium patch removed and replaced with a new patch and epoxy, 3/24 PTS reinstalled 90 6/29/92 Reactor Safeguards Committee Notes A.J. Blotcky 44 91 9/30/92 Reactor Safeguards Committee Notes A.J. Blotcky 43 92 12/21/92 Reactor Safeguards Committee Notes A.J. Blotcky 42 Papers published on selenium in J. of Radioanalytical Chemistry, and on aluminum in Analytical Chemistry 93 2/8/93 1992 10 CFR 50.59 Report to the NRC for Thomas Wall USNRC 20 leak in receive of PTS caused by previously License R-57 epoxied titanium patch failed, new titanium patch was epoxide around the hole. Leaky pump seal replaced 94 6/14/93 Reactor Safeguards Committee Notes A.J. Blotcky 41 95 9/29/93 Reactor Safeguards Committee Notes A.J. Blotcky 40 7/22/93 sample holders coming out of PTS damp, tube removed 7/28/93 and titanium patch re-epoxied 96 12116/93 NRC Inspection Report 50-131/93-01 Dwight D. Chamberlain John J. Phillips 19 USNRC 97 12122/93 Reactor Safeguards Committee Notes A.J. Blotcky 39 98 3/25/94 Reactor Safeguards Committee Notes A.J. Blotcky 38 proposal at meeting by A.J. Blotky that the exhaust of the PTS be rerouted into the RX lab and connected to the duct of the fume hood in the center lab (proposal approved, drawings included)

Page 8 of 12

.. VI. '

( C Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 99 6/10/94 Reactor Safeguards Committee Notes A.J. Blotcky 37 6 elements in B ring were exchanged with E ring 100 9/1/94 Part 4 A.J. Blotcky Reactor Facility Omaha VA 139 date is approximate based on environmental Medical Center, Omaha, NE SAFETY exposure data reported Inchapter 9 of the SAR ANALYSIS REPORT 101 9/29/94 Reactor Safeguards Committee Notes A.J. Blotcky 36 8/1/94 removed PTS from RX tank to repatch terminus with epoxy, 8/9/94 reinstalled PTS 102 12/20/94 Reactor Safeguards Committee Notes A.J. Blotcky 35 103 1/20/95 Notice of Consideration of Application for Alexander Adams, Jr. John J. Phillips 18 Renewal of Facility License R-57 USNRC 104 3/3/95 Reactor Safeguards Committee Notes A.J. Blotoky 33 on 12/23/94 the PTS leaking 350 ml of water removed, 12/23 leak repaired with epoxy, tube reinserted into the reactor on 1/4/1995 105 3/25/95 Emergency Plan Changes A.J. Blotcky USNRC 34 106 6/8/95 Reactor Safeguards Committee Notes A.J. Blotcky 32 417/95 PTS tube leaking 66 ml of water removed, 4110195 tube removed, 4/11/95 leak repaired with epoxy, 4/13/95 tube reinserted into the reactor 107 9/13/95 Reactor Safeguards Committee Notes A.J. Blotcky 31 108 9/26/95 Nuclear Reactor Emergency Plan Alexander Adams, Jr. John J. Phillips 21 USNRC 109 9/26/95 Letter from Alexander Adams, Jr. NRC RE Alexander Adams, Jr. Dr. John J. Phillip 88 Nuclear Reactor Emergency Plan NRC 110 11/29/95 Replacement of Pneumatic Tube Receiver 27 111 1214195 Reactor Safeguards Committee Notes A.J. Blotcky 30 ss TRIGA fuel element installed on 10/2/1995 112 1/31/96 1995 10 CFR 50.59 Report to the NRC for John J. Phillips USNRC 17 replacement of pneumatic transfer tube terminus, License R-57 addition of ss fuel element 113 3/29/96 Reactor Safeguards Committee Notes A.J. Blotcky 29 114 6/28/96 Reactor Safeguards Committee Notes A.J. Blotcky 28 115 9/27/96 Reactor Safeguards Committee Notes A.J. Blotcky 90 Page 9 of 12

,C Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 116 11/4/96 Letter Re: NRC Inspection Report 50-131/96-01 Kenneth E. Brockman, J.J. Phillips 89 NOV Severity Level IV violation was issued for and Notice of Violation NRC not having written standard operating procedures for surveillance as required by Section 4 of the Technical Specifications.

117 12/18/96 Reactor Safeguards Committee Notes John P. Claassen 87 118 2/21/97 NRC Inspection Report 50-131/97-01 and Notice Thomas P. Gwynn John J. Phillips 85 of Violation NRC 119 3/24/97 Reactor Safeguards Committee Notes John P. Claassen 86 120 4/1/97 Letter from NRC to Mr. John J. Phillips RE NRC Arthur T. Howell IlIl John J. Phillips 84 NOV issued for allowing J. P. Claassen to Inspection Report 50-131/97-01 and Notice of NRC operate the reactor controls with an expired Violation dated February 21, 1997 license 121 6/30/97 Reactor Safeguards Committee Notes John P. Claassen 83 122 3/31/99 1998 10 CFR 50.59 Report to the NRC for John J. Phillips USNRC 15 License R-57 123 4/5/99 Letter response for RAI to supplement license John J. Phillips USNRC 12 submittal for 3/12/99 124 4/5/99 Letter Completed Forms 742 and 742C for John J. Phillips NAC International 14 October 1998 through December 1999 125 4/7/99 Letter: NRC Routine, Announced Inspection Ledyard B. Marsh John J. Phillips 13 Report No. 50-131/99201 126 6114/99 RAI for renewal of License R-57 Alexander Adams, Jr. John Claassen 11 USNRC 127 6/21/99 Amendment to Tech Specs: Docket 50-131 John Phillips USNRC 10 128 3/30/00 1999 10 CFR 50.59 Report to the NRC for John J. Phillips USNRC 7 Console upgrade, 3 newer control rod drives, An License R-57 inner wall was redesigned (SW2A and 2B) 129 5/5/00 License R-57 Amendment 10, Department of Alexander Adams, Jr. John Philips 9 Veterans Affairs A.J. Blotcky Reactor Facility - USNRC Amendment to inspect fuel every 5 years with at least 20% of fuel elements inspected yearly 130 3/29/01 2000 10 CFR 50.59 Report to the NRC for Gary Nugent USNRC 8 License R-57 Page 10 of 12

C 'C C.'

Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 131 8/8/01 Letter from VA responding to NRC request for John Claassen USNRC 6 additional information for renewal of Facility Operating License R-57 132 12/5/01 NRC Routine, Announced Inspection Report No. Patrick M. Madden, Gary Nugent 5 no safety concerns or noncompliance 50-13112001-201 License R-57 Section Chief USNRC CEO Dept of Veterans Affairs 133 12/5/01 NRC Routine, Announced Inspection Report No. Patrick M. Madeen Mr. Gary N. Nuge 101 50-131/2001-201 License R-57 134 2/11/02 Reactor Safeguards Committee Notes John P. Claassen 100 135 2/7/02 Reactor Safeguards Committee Notes John P. Claassen 99 136 2/28/02 Reactor Safeguards Committee Notes John P. Claassen 98 137 3/29/02 Reactor Safeguards Committee Notes John P. Claassen 97 138 5/13/02 Letter: Interagency Agreement No. 1015 J.Dale Jackson Office Gary Nugent 16 of nuclear Fuel Security CEO Dept of and Uranium Veterans Affairs Technology 139 6/21/02 Documents from May and June 2002 for VA 96 Stability of Work platform Calculation (NAC);

TRIGA Shipment of fuel by NAC Reactor Safeguards Committee Notes; TRIGA Fuel Dose Rate Evaluation for the AJB Reactor Facility; Event description for 5/29/02 Fuel Element Drop 140 6/24/02 Interagency Agreement #1015, Nuclear various by many from USNRC 4 package contains calculations, Material Reports, Materials Transaction Report, Safeguards Gary Nugent Letters, Material Balance Report (NRC/DOE Information transferring 57 fuel elements and 1 Form 742) Physical Inventory (NRC/DOE Form fission chamber from License R-57 (AJB RF) to 742C)

License R-113 (USGS) 141 8/5/02 Letter: Department of Veterans Affairs Alan J. Alexander Adams, Jr. Mr. Gary N. Nuge 91 Enclosures to the letter include Amendment No.

Blotcky Reactor Facility - Amendment No.11 Re: NRC 11, Notice of Renewal and Safety Evaluation Renewal of Facility Operating License No. R-57 Report (TAC No. MB8345)

Page 11 of 12

A-t.I.f IN !A A C

Duratek Characterization A.J. Blotcky Reactor Facility APPENDIX A A.J. Blotcky Reactor Facility Historical Documents Date Subject From To Index Comments 142 Rotary Specimen Rack Removal Procedure 81 package includes the procedure, an 8/26/66 letter from AJ.Blotcky to D.F. Heckman on noise in the new specimen rack prior to Installation; an 8/18166 letter from Ralph Peters at GA to AJ Blotcky on rod worth of a fuel element in ring G; a Health Physics procedure for removal of the Lazy Susan assembly from Stacy Swanberg RSO; an 8/15/66 letter from AJ. Blotcky to Dr. Quaife RE performance of the New Specimen Rack; 8/16/66 letter from AJ. Blotcky to Ralph Peters GA; various letters and quotes; a 12123/64 procedure on Repair of the Rotary Specimen Assembly 143 Photographs 92 144 Neutron Detection Instrumentation and TRIGA 93 Reactor Information 145 Miscellaneous Correspondence between Alan J. 94 Blotoky and General Atomics 1959 - 1984 146 Reactor Safeguards Committee Audits For T.S. 95 1997 - 2001 6.5.3 (1997 - 2001)

Page 12 of 12

ML061140054

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