ML20080U094

Rev 0 to Fsv Nuclear Station Decommissioning Project Final Survey Rept for Repower Area

ML20080U094
Person / Time
Site:	Fort Saint Vrain
Issue date:	03/02/1995
From:	Story H SCIENTIFIC ECOLOGY GROUP, INC.
To:
Shared Package
ML20080U080	List: ML20080U078 ML20080U094
References
NUDOCS 9503140224
Download: ML20080U094 (114)

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{{#Wiki_filter:- 4 i Fort St. Vrain Nuclear Station i Deconunissioning Project Final Survey Report y Repower Ana Public Service Company of Colorado Fort St. Vrain Nuclear Station ) Platteville, Colorado i APPROVED BY: fa/ w 3 73~ ' PR'OJECT ATION PROTEC ~-NAGER DATE ' Prepared By: Scientific Ecology Group, Inc 1560 Bear Creek Road Oak Ridge, Tennessee 37831 REVISION 0 W PDR

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t 4 EXECUTIVE

SUMMARY

l . This report presents the results of the final survey measurements performed within a portion'of the restricted area located east of the turbine building, referred to as the repower' area. The collection - j of these measurements was' sequenced to be the first phase of the fmal survey at the Fort St..Vrain (FSV) Nuclear Station. Completion of the repower area fmal surveys is intended to support release. J of the area for unrestricted use. This is necessary to begin the initial phase of preparation for re-use ~ of this area to resume electrical generation using gas turbines. The repower area, classified as unaffected, is located in the southeast corner of the site. LFinal survey of this area was performed in accordance with the FSV Final Survey Plan, FSV commitments -l in response to Nuclear Regulatory Commission (NRC) Request for Additional Information (RAI), and approved final survey procedures. Within the repower area, two general categories of survey units were identified: surfaces and structures, and open land areas. Final survey of surfaces and structures included approximately 570 measurements: 230 direct mesurements for total surface 1 activity; 204 measurements for removable surface activity; and 136 exposure rate measurements, ' obtained at one meter from surfaces. Survey of open land areas. included 47 exposure rate measurements at one meter from surfaces,47 soil samples (35 surface and 12 subsurface); as well- .as liquid samples collected from monitoring wells, and ligttid and sediment samples from three septic. l tanks located in the area. All surface activity measurements were less than 25% of the guideline values for release for unrestricted use; all exposure rate measurements were less than 5 pR/hr above background; and soil, sediment and liquid radionuclide concentrations were equivalent to environmental background concentrations. 1 The boundaries of the repower survey area have been dermed by a security fence. In addition,- + administrative controls have been implemented to control personnel and material access to prevent licensed material from entering the area. l The results of the final survey data presented in this report demonstrate, with a very high degree - ) of confidence, that the criteria established for release of the repower area for unrestricted use have been satisfied. ~ l J 1 G:\\PROCSTIN SURVTINALSUR REVISION O ~ ,l March 2.1995 . -,.. _ ~ , -.... - - - - +, ,m

-.1 I FSV FINAL SURVEY REPORT REPOWER AREA - TABLE OF CONTENTS I EXECUTIVE

SUMMARY

............................................... i LIST OF TARIM LIST OF FIGURES.................................................,.,,- iii .iv LIST OF APPENDICES................................................ iv

I.0

. INTRODUCTION....................................... ......1 1.1 PURPOSE AND SCOPE..................................... 1 - 1.2 MANAGEMENT .........................................1 1.3 H I STOR Y............................................... 1 1.4 SURVEY AREA DESCRIITION ................................'3 .2.0 - DECOMMISSIONING ACTIVITIES.................................. 5 3.0 FINAL SURVEY MEHIODOLOGY.................................. 6

3.1 INTRODUCTION

6 J 3.2 RADIONUCLIDE PROFILE................................... 7 3.3 GUIDELINE VALUES...................................... 7 S URFACE ACTIVITY................................. 7 ? EXPOSURE RATES.................................. 8' RADIONUCLIDE CONCENTRATIONS IN SOIL AND WATER...... 9 1 3.4 INSTRUMENTATION...................................... 9. FIELD INSTRUMENTATION............................ 10" LABORATORY INSTRUMENTATION 10 3.5 MINIMUM DETECTABLE ACTIVITY........................... 10

3.6 BACKGROUND

RADIATION LEVELS........................... 13. t TOTAL SURFACE ACTIVITY............................. 14 EXPOSURE RATES 15 RADIONUCLIDE CONCENTRATIONS IN SOIL AND WATER...... 16-3.7 SURVEY DESIGN AND PROTOCOL............................ 17 S URVEY UNITS..................................... 18 SURVEY UNIT CLASSIFICATION.......................... 18' OPEN LAND SURVEYS................................ 19 SURVEYS OF STRUCTURAL SURFACES.................... 19 3.8 QUALITY ASSURANCE / QUALITY CONTROL..................... 20 QUALITY ASSURANCE PROGRAM 21-SURVEY DOCUMENTATION............................ 21 SO U RC ES......................................... 22 FIELD INSTRUMENTATION............................. 22 ANALYTICAL INSTRUMENTATION...................... 24 - VERIFICATION MEASUREMENTS........................ 25 - 3.9 DATA ANALYSIS ......................................25 CONVERSION TO REPORTING UNITS 26 STATISTICAL ANALYSIS........ c.................... 26 ACTION LEVEL AND GUIDELINE VALUE SCREENING........ 26 4.0 FINAL SURVEY RESULTS....................................... 29 4.1 SURFACES AND STRUCTURES............................... 29-TOTAL AND REMOVABLE SURFACE ACTIVITY.............. 30 REMOVABLE ACTIVITY SAMPLE RESULTS................. 34 EXPOSURE RATE MEASUREMENT RESULTS................ 35 4.2 OPEN LAND AREAS....................................... 38 RADIONUCLIDE CONCENTRATIONS IN SURFACE AND i S UBSURFACE SOIL.................................. 38 RADIONUCLIDE CONCENTRATIONS IN WATER.............. 38 EXPOSURE RATE MEASUREMENT RESULTS................ 41 5.0

SUMMARY

4 3

6.0 REFERENCES

4 5 0APROCSTIN SURVWINALSUR REVISION O 11 March 2.1995

~ FSV FINAL SURVEY REPORT REPOWER AREA LIST OF TABLES Table 3-1, Final Survey Procedures / Technical Basis Document (TBD)............. 6 Table 3-2, Surface Contamination Guideline Values for Unaffected Survey Units....... 8 Table 3-3, Final Survey Instrumentation 9-Table 3-4, Typical Total Surface Activity A Priori MDA and Critical Level 2 Values (dpm/100 cm ),,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ig Table 3-5, Typical Tennelec LB-5100 A Priori MDA and Critical Level 2 Values (dpm/100 cm ).................................... 12 Table 3-6, Typical Beckman LS3801 A Priori MDA and Critical Level Values (pCi/ml)... 12 Table 3-7, Typical Gamma Spectroscopy MDA Values....................... 13 Table 3-8, Reference Background Values for Materials (dpm/100cm ).............. 15 2 Table 3-9, Background Values for Exposure Rates (pR/hr)..................... 16 Table 3-10, Background Values for Cs-137 Concentrations..................... 17 Table 3-11, Background Values for H-3 Concentrations (pCi/ml)................ 17. Table 3-12, Instrument Source Check, Response Check, and Calibration Requirements.... 23 Table 4-1, Total Surface Activity (dpm/100 cm ).......................... 30 2 Table 4-2, Removable Beta Activity (dpm/100 cm ) 34 2 Table 4-3, Removable Alpha Activity (dpm/100 cm ) 34 2 Table 4-4, Exposure Rate Results ( R/hr) 35 Table 4-5, Radionuclide Analysis of Soils (pCi/g) 38 Table 4-6, Radionuclide Analysis of Water (pCihcl)......................... 39 Table 4-7, Exposure Rate Results ( R/hr) 41 1 a l l \\ 1 0:\\PROCSWIN SURVWINALSUR REvlSION 0 l ~ 111 Mmh 2.1995 i

k FSVJETAL SURVEY REPORT r. REPOWER AREA e H ~ LIST OF FIGURES .r y - Figure 1-1, General Site Layout Indicating Repower Area.................... 2 6 ~ JFigure 1-2, Repower Area Overview '....,............................. 3 - Figure 4-1, Valve Pit..... :....................................... 31 Figure 4-2, Miscellaneous Metal Surfaces............................... 31 Figure 4-3, Concrete Slab at the Security Fence............................. 32-Figure 4-4, Miscellaneous Concrete Surfaces............................. 32 Figure 4-5, Evaporative Cooler Building East & South Walls Below 2 Meters.......... 33 Figure 4-6, Evaporative Cooler Building East & South Foundation Walls............ 33 Figure A7, Concrete Slab at the Security Fence...............,............ 35.. Figate 4-8, Miscellaneous Concrete Surfaces '36 Figure 4-9, Miscellaneous Metal Surfaces................................ 37 Figure 4-10, Evaporative Cooler Building East & South Walls Below 2 Meters........ 37. Figure 4-11, Septic System Upstream of Tank (H-3) .......................40 (. Figure 4-12, Monitoring Wells (H-3) ..................................40' Figure 4-13 One Meter Above Location of General Soil Samples............... 41 Figure 4-14,'One Meter Above Location of Septic Field Soil Samples.............. 42 - LIST OF APPENDICES Appendix A. Repower Area Survey Data, Surfaces and Structures Appendix B, Repower Area Survey Data, Open Land Areas Appendix C, Background Data ~ f 1 1 a t f l l -l i I 1 a GAPROCSTIN SURVWINALSUR REVISION O IV March 1 196 'l

wm : df i FSV FINAL SURVEY REPORT j REPOWER AREA 1 p a ? ') l1.0? INTRODUCTION .l

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+, c l1.1-PURPOSE AND SCOPE i / 1 '- 4 h 4 The purpose of this report is to present the remits of the final survey of the repower. i area so that release of the area for unrestricted use can be authorized by the NRC. Public Service Company of Colorado has committed to the Colorado Public Utilitiesf . Commission to. resume electrical' generation at the' Fort St. Vrain (FSV) Station q through the installation of gas turbines. : In order to prepare this area for the repower - ~ l i project, fmal survey measurements were collected in accordance with the FSV Final ' -l

Survey Plan for Site Release (Ref.1), FSV commitments in response to NRC RAls

? (Ref. 2,3 and 4), and approved implementing procedures. The survey operation was. performed during January and February.1995. j E The scope of this report is limited to the final survey ' associated with surfaces and - structures and open land areas located within the southeastern portion of the restricted area at FSV, known as the repower area. LThe report also discusses the measurement p" requirements, implementation of the final survey relative to the repower area,' and the. results of these measurements. -( 4 1.2 1 NAGEMENT j Final surveys for the repower area were performed by Scientific Ecology Group, Inc. (SEG) as part of a *e=i5 arrangement with WeigW Electric Corporation under contract to the Public Service Company of Colorado to decommission the Fort l St. Vrain Nuclear Station. : Public Service Company of Colorado provided oversight ~ for all decommissioning and final survey activities. ~ 'i \\ 1.3 IBS'IDRY il Fort St. Vrain (FSV) was a 330 MWe High Temperature Gas-Cooled Reactor? (HTGR) owned and operated by PSC. The facility is located approximately 35 miles - north of Denver and 3.5 miles northwest of the town of Platteville, in Weld County, Colorado. The site consists of 2798 acres owned by PSC. During plant operation, approximately one square mile within the site area was designated as the exclusion area. The licensee maintained complete control over this area. The basic installation - i included a reactor building, turbine building, cooling towers, and an electrical switchyard. i FSV wu permanently shutdown in August,1989, with the decision to decommission j the facility made during December,1989. On November 23,1992, the NRC issued j the Order to Authorize Decommissioning of Fort St. Vrain and Amendment No. 85 i to Possession Only License No. DPR-34 (Ref. 5). During the time period 1989 to 1991, a radiological characterization of the FSV site was performed. Currently, the j FSV decommissioning is approximately 70% complete, with completion expected -{ carly in 1996 (excluding final site survey). j i o:\\PROCS\\ FIN,sURY\\FINALSUR REVISION O I March 2.1995 i

y FSV FINALSURVEY REPORT REPOWER AREA - PSC has committed to resume electrical generation at the FSV following completion - of decommissioning and plant conver'. ion. This' conversion will require. the installation of gas turbines. To support the conversion schedule, a small section of land in the southeast area of the site has been cleared in preparation for the repower effort. This location, referred to as the repower area, is approximately 12,225 square meters in size. The location of this area within the general site layout is depicted in Figure 1-1. 't '[1 ( ) tj N {d .wc w.2 { . L: ~ X & }J L 4-t

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0 'l I-REPOWER {.q,gf ',/ M j a AREA g f j g m ag g' e s i ~ Figure 1-1 General Site Layout Indicating Repower Area 1 ovnocsm,sURVWINALsUR I 7

m ) FSV FINAL SURVEY REPORT REPOWER AREA 1.4 SURVEY AREA DESCRFf10N The repower survey area is located within the restricted area of the FSV facility on the east side of the turbine building, north of the electrical switchyard. This area has l been isolated from the balance of the restricted area by a chain link fence and locking gates. Authorization must be obtained for access to the repower area. The repower j area access keys are controlled by FSV Security. This combination of administrative and physical controls ensure that licensed radioactive material is not brought into the repower area. The boundaries of the repower area include portions of the original restricted area fence on the south and east sides and newly erected fence on the west and north sides. The boundary also includes the east, and a portion of the south exterior walls of the evaporative cooler building. Once the repower area is released for unrestricted use, the chain link fence will define the restricted area boundary in the southeast corner of the site. A detailed drawing of this area is provided in Figure. 1-2. i e ' c *= 2 N/ 90%rf0aec

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x ""'c *T"o ??? ? 2 cwnt va, _ l l CC*4 RC fL J ' POWER SUX cucant 5g l Figure 1-2 Repower Area Overview The repower area does not have a known history of radioactive contamination. During plant operations, pre-fabricated steel buildings were located in this area which i housed a constmetion workshop, a QA/QC facility where radiography was l i i o:7RDCSTIN,5URV71NAL.sUR REVISION 0 3 March 2.1995

FSV FINAL SURVEY REPORT REPOWER AREA 5 performed, a small warehouse and a flammable storage building. Also included in this area was a curbed basin used for fire protection training drills. The evaluation of characterization results for the repower area did not identify. i radioactive contamination due to licensed activities. Based on this and the low probability of residual radioactive contamination, the repower area was classified as - p unaffected in accordance with the FSV Final Survey Plan (Ref.1) and approved final [ survey procedures. GAPROCSTIN,5URVWINAL.SUR REVISION 0 4 March 2.1995

FSV FINAL SURVEY REPORT

• I REPOWER AREA j

p ~ ?2.0. ? DECOMMISSIONING ACTIVTI1ES j y As previously stated, decommissioning of the FSV Nuclear Station began in 1992. With. i j 9 respect toi he repower area, neither dismantlement. nor-remediation for radioactive .i t k_ ' containination was required. However, remediation for hazardous materials (diesel fuel) was performed at the location of a fire protection training burn pit basin in September _1994. Prior to initiating the final survey in this area,~ the basis used for fire protection training l drills was excavated for purposes of fuel oil remediation. In support of the soil remediation, i 10 surface samples were collected prior to excavation, 31 subsurface samples were collected j at various stages of excavation, and 15 samples of the back fill material were collected. 1 These samples were analyzed by gamma ' spectroscopy and indicated. no Llicensed l radionuclides. During the remediation, it was necessary to repair a section of the : j Demineralizer Room Sump Discharge Line. This sump, and associated influent, are-classified as unaffected. The interior of the line was surveyed for total and removable l surface activity and 4 additional soil samples were ' collected at the location' of the repair. i y . The results of this survey and laboratory analysis indicated no activity in excess of MDA. p During ' fmal survey of' the repower area a water sample wasi collected from the : Demineralizer Room Sump. The results of gamma spectroscopy and tritium analysis did not j ' identify the presence of licensed materials. 'I i Three pre-fabricated steel buildings were dismantle Isty or nasurally.occurnns acovsty m concrete. When applying the background to the set of survey measurernents, the net enessurennent results were reviewed to ensure that the optimum value i was chosen.. t In addition to the reference background values for construction materials, at the time of final survey, a series of pre-and post-survey shielded measurements were collected to define the contribution to the observed response due to local area exposure rate and the noise specific to the instrument used for the measurement. The resultant background value is applied to final survey measurements. The local background values were determined in accordance with procedure FSV-SC-FRS-I-103, FinalSurvey of Surfaces and Structures. 1 EXPOSURE RATES Exposure rate backgrounds were determined from several off-site locations in the vicinity of the FSV facility, also in accordance with procedure FSV-SC-FRS-I-101, Background Level Determination for Final Survey. The results of the gamma background evaluations are provided in Table 3-9. 1 i o:\\PRoCS\\ FIN,5URY\\ FINAL.sUR REVISION O 15 March 2.1995

FSV FINAL SURVEY REPORT REPOWER AREA Table 3-9 t . Backgroind Values for Exposum Rates (pR/hr) Material Number of Mean Maximum Minimum Standard UCL (95%) of. Type Measurements Result Result Result Deviation Sample Set Mean Concrete (1) 32 19.5 20.5 18.3 0.6 19.6 Concrete (2)- 29 19.0: 20.2 17.3 0.6 19.2 l Concrete (3) 30 21.6 23.0 19.7 0.9 21.8 l Bare Metal L 15.8 17.1 15.0 0.5 16.0 i Pipes Painted 30 16.0 17.4 14.0 0.8 16.3 Sheet metal j Soil 40 24.9 29.0 22.2 2.0 25.4 Junns nnat survey. several reference enckground values were occamos to account for me vennesiwy of sne packgrouns esposure rate. when applying the background to the set of survey snessurements. the not measurernent results are reviewed to ensure that the optunusa value was chosen, I ,1 RADIONUCIinE CONCENTRATIONS IN SOIL AND WATFR 3 Background concentrations in soil and groundwater were determined from four off-site { locations in the vicinity of the FSV facility, also in accordance with procedure FSV-SC-FRS-I-101, Background Level Determination for Final Survey. Soil and liquid background samples were analyzed for principal gamma emitters. These samples were counted for 1000 seconds. The only radionuclide identified consistently in soil, other than naturally-occurring radionuclides, was Cs-137; only naturally-occurring radionuclides were identified in liquid samples. Liquid samples analyzed for tritium background were counted for 600 seconds. The mean activity was determined by dividing the sum of the measurement results by the number of measurements. If no activity was detected, an activity value of 0 was used for the measurement which. provides a conservative estimate of the mean. The results of the background evaluations are provided in Tables 3-10 and 3-11. i o:\\PROCSWIN,5URV\\ FINAL.SUR REVISloN O j 16 usrch 2.1995

FSV FINAL SURVEY REPORT REPOWER AREA Table 3-10 Backgmund Values for Cs-137 Concentrations Material Type Number of Mean Maximum Minimum Standard UCL (95%) of Measurements Result Result Result Deviation Sample Set Mean Surface Soil 40 0.12 0.37 0 0.09 0.14 (pCi/g) Subsurface Soil 40 0.10 0.32 0 0.08 0.12 (pCi/g) Groundwater 4 0 0 0 0 0 (pCi/ml) Table 3-11 Backgmund Values for H-3 Concentrations (pCl/ad ) Material Type Number of Mean Maximum Minimum Standard UCL (95%) of Measurements Result Result Result Deviation Sample Set Mean Groundwater 4 0.61 0.89 0.28 0.25 0.91 3.7 SURVEY DESIGN AND PROTOCOL The final survey was designed and implemented in accordance with the guidance provided in drait NUREGICR-5849, Manualfor Conducting Radiological Surveys in i Support of License Termination (Ref. 8), the FSV Final Survey Plan (Ref.1) and approved final survey procedures. The results of the design process were documented in accordance with FSV-SC-FRS-I-102, Survey Design and Package Preparation. Survey design includes the process of defining the boundaries of a survey area or survey unit, assigning the appropriate classification based upon the potential for contamination, determining the type, location, number and frequency (or density) of radiological measurements, and identifying the control measures to be implemented after the completion of final survey. The boundaries of the repower survey area have been defined by the security fence which was installed prior to survey on the west and north sides of the area and by the original restricted area fence on the east and south. This area was secured to establish j positive control of personnel and material access in accordance with FSV-SC-FRS-I-108, Final Survey isolation and Control Measures. The repower survey area was funher sub-divided into survey units. Survey units are established to facilitate the survey process and aid in the statistical evaluation of the survey data. The survey units i within the repower area were defined to be contiguous surfaces, where practicable, with similar characteristics and contamination potential. Generally, a minimum of 30 measurements were collected within each survey unit. o:\\PRoCs\\ FIN,sURV\\FINALsUR REVISION 0 17 March 2.1995 .l

FSV FINAL SURVEY REPORT REPOWER AREA 1 A'walkdown of each survey unit was performed and a survey instruction ' sheet.was prepared containing a description of_the survey unit, historical information,Lsurvey. . location (database) codes, and specific survey instructions. A drawing was prepared using en== iter aided design (CAD) equipment and software. Existing site drawings were reviewed and area.walkdowns performed to verify the accuracy with regard to; ~

physical dimensions and arrangement of the major components. To aid in determining 1

the number and placement of measurement / sampling locations, a 10 meter by 10 meter j

grid' system was superimposed on the drawings of some survey units.

.t SURVEY UNITS t A' survey unit is a contiguous area with similar characteristics'and contamination-potential. Survey units'were established to facilitate the survey process and aid in the - statistical evaluation of the survey data. 1 i The categories of survey units contained within the repower area included Surfaces and., Structures, and Open land Areas. Each survey unit was assigned a survey location code to facilitate segregation and statistical evaluation of the measurements collected. j Examples of the survey units defined within the repower area are; concrete surfaces, valve pit, building exteriors, ' surface soil, subsurface soil,Lmiscellaneous metalhc 1 components, monitoring wells, septic tanks and septic fields. SURVEY UNIT CLARRIFICATION l A survey unit may be classified as belonging to one of three categories; unaffected, .l non-suspect affected, or suspect affected. A survey unit may be initially classified as-1 unaffected if there is little or no potential for the presence of licensed material based i upon operational history, characterization data, and routine surveillances. The presence j of licensed material (in excess of MDA), or previous remediation would preclude a 1 survey unit from being classified as unaffected. All survey units within the repower area. were classified as unaffected. This I determination was based on the following primary considerations: ) Historical information. J The designed function for the area and potential for contamination. .J The results of Initial Radiological Site Characterization surveys. Discussions with the utility Operations and RP staff. The results of the initial characterization identified traces of Cs-137 in surface soil in an adjacent area outside of the repower area fence, but within the restricted area. This location had been previously used for storage of spent fuel shipping casks. In GAPRoCSTIN,SURVWINALSUR REVISloN O I8 March 2.1995.

iFSV FINAL SURVEY REPORT

i b

consideration of this, 5 biased soil samples were collected in addition to the systematic samples within the repower area. J OPEN LAND SURVEYS h 1 Requirements for ibis type of survey are detailed in procedure FSV-SC-FRS-I-105,. i Final Survey of Open land Areas. Sampling locations within the repower& for soil and water were selected using systematic and biased selection methods. ~ ; soils were collected in accordance_with procedures FSV-SC-FRS-106,' Subsurface Soil' Sanpling and FSV-SC-FRS-107, Surface SoilSanpling. Liquid samples were collected - from monitoring wells and'the septic tank inlets in accordance with' instructions l provided in the survey package. Samples were forwarded to the radiochemistry j laboratory for analysis and storage.. i 'i The fm' al survey of the soil included an exposure rate scan survey of greater than 10% j of the accessible surface area.' The intent of this survey was' to identify potentially' elevated areas of activity requiring investigation and/or additional sampling. No areas - j of elevated activity were identified. Exposure rate measurements (fixed-point) were collected prior to soil sampling at a distance of one meter from the surface at the locations designated for systematic and the previously-mentioned biased surface soil samples. Subsurface soil samples were collected from within each of the septic fields at depth below the drainage media.. Water samples were collected from each of the septic tanks and the monitoring wells located within, and adjacent to _the repower area.- Three sediment samples were also obtained from the septic tanh after removal of the - liquid contents. 1 Open land within the repower area was not gridded. ; However, soil sampling and ' j exposure rate measurement locations were marked for reference. SURVEYS OF STRUCTURAL SURFACES i Structural surfaces were evaluated with scan surveys, systematic measurements and l biased measurements in accordance with procedure FSV-SC-FRS-I-103, Final Survey l ofSurfaces and Structures. Each structural survey unit was surveyed in the following - manner: A surface activity scan survey was performed over a minimum of 10% of the surface area in each survey unit to identify any areas of elevated radioactivity requiring investigation and/or additional' measurement. i Scan surveys for surface activity were performed using a Ludlurn Model i 4348 gas-flow. proportional detector operated at the alpha-plus-beta voltage.. The detector was placed at or near contact with the surface being surveyed and moved at a rate of 2 inches per second or less. { i i l G:PROCSTIN,5URVWINA1 SUR REVISION O 19 umn 2, tws I

y es FSV FD(AL SURVEY REPORT i { REPOWER AREA 9 . The number, or frequency of fixed-point measurements for total surface activity was specified by the survey package. For survey units consisting of 1500 square meters or less, a minimum of 30 measurements was 1 specified. For survey units consisting of greater than 1500 square meters, ~ a minimum frequency of 1 measurement per.50_ square meters 'was specified. Fixed-point measurements for total surface activity'were -. obtained using a Ludlum model 43-68 gas-flow detector operated at the - j ~ alpha-plus-beta voltage. The detector was placed.on contact with the-1 surface being surveyed and" operated in the scaler mode for a 15-second-counting interval. Measurement-results-were down-loaded to a j computerized database for output and analysis. >1 i Exposure rate measurements were collected'at a distance of one meter from the location of each-fixed-point. measurement where physically ' l possible. For locations where the Nal detector could not be positioned ll at I meter from imerfering surfaces, the exposure rate measurement was not performed. Exposure rate measurements.were collected using a-l Ludlum model 44-2 NaI(TI) scintillation detector. Measurements were i obtained using a 30 second integrated count. Likewise, measurement l results were down-loaded to a computer database. A smear for removable surface activity was collected at the location of . each total surface activity measurement. The smear samples for 'l removable beta-gamma surface activity were collected over an area of 100 1 2 . cm area using standard smear sample media and collection techniques. The samples were analyzed for gross beta-gamma radioactivity using a l Tennelec LB-1500. gas-flow proportional counter. Although, ^ alpha - l emitting radionuclides were not expected in the repower area,100% of the smears were analyzed for alpha. -l l The structures within the repower area were not gridded. However, exposure rate and surface activity measurement locations were marked for reference. 3.8 QUALTIY ASSURANCE /QUAIJIY CONTROL Quality Assurance (QA) and functional area Quality Control (QC) was mainta'med-J [ through mechanisme imposed by both the Westinghnae Team (WT) Project Quality. ] Plan (PQP) and by procedural requirements intended to ensuit the quality and validity ) L of the final survey measurements.. These mechanisms were' implemented through the-preparation of specific survey instructions tailored to each survey area, redundant reviews and sign-offs of survey packages and results, specific controls on the final survey database and instrumentation, and independent WT QA organization reviews and oversight. 4-i s i GAPROCSWIN,sURvTINALSUa REVISION 0 I 20 March 2.1995 1 4 3 ",-w w y,<-. e t- -. ~ r~,.-. ,%-w--, e w er-

- FSV FNAL SURVEY REPORT l W REPOWER AREA w QUALITY ASSURANCE PROGRAM 'i q The WT PQP was ' developed to comply with the QA requirements specified in the FSV Decommissioning Plan (Ref. 9). The QA Program implemented for.the final survey 1 'is described in SEG QA Plan QAP-122. QAP-122 describes the application of the l SEG/QA-100 QA Program and the WT-DQAM QA Program for activities associated j with the final survey. _ QAP-122 specifies the application of the following QA Program 1 criteria for the fmal site survey: Organization l . Quality Assurance Program Procurement Document Control 3 L l Instructions, Prdos and Drawmgs Document Control __ j Control of Purchased Material, Equipment and Services Control of Measuring and Test Equipment Non-Confonnance Reporting. t Corrective Action i Quality Records, and' Audits. l The WT QA organization performs and documents surveillances of final-survey j activities. Non-conformances identified during the surveilhar** and duvugland the final site survey are documented and dispositioned by responsible. supervision. Corrective action implementation are verified by WT QA prior to closure.. There were .j na non-conformances identified during the fmal survey of the repower area. All final survey records identified as Quality records are maintained in accordance with. FSV-RP-ADM-I-104, Control of Radiation Protection Logs, Records and 1kinowrs. Quality records are maintained for all instrumentation utilized during the fmal survey. These documents include source certifications, detector efficiency ' calculations,. 1 instrument source responses, and instnunent calibration, issuance and maintenance history records. Quality records for survey instructions and survey results are also maintained in the form of the survey package. SURVEY DOCUMENTATION 'i i Specific final survey instructions are documented in the survey package, which are prepared by a fmal survey engineer, and reviewed and approved by the fmal survey lead engineer in accordance with FSV-SC-FRS-I-102, Surwy Design and Package . Preparation. Records of final survey measurement and sample analysis results are attached to the applicable survey package. Following the performance of the final' survey for a survey package, the data are reviewed and analyzed by assigned members of the final survey engineering staff. When the fmal surveys for a partrulu survey package are completed, the survey package is reviewed for completeness, accuracy, data which exceed action levels, etc. This is performed by a final survey engineer, 0:\\PRoCS\\ FIN _SURV\\FINALSUR REVIS10N 0 21 March 2.1995 ~

J FSV FINAL SURVEY REPORT REPOWER AREA o-final survey lead engineer and approved by two members of radiation protection .j management. l .) SOURCES All sources used for instrument calibration are traceable.to' NIST. 'For portableL instrumentation, sources are controlled in accordance with procedure FSV-RP-RAM-I-103, Radioactive Source Innntory, Leak Testing and Disposal. For laboratory. .l instrumentation, sources are controlled in accordance. with FSV-RC-ADM-I-151,-. Radioactive Source Log-In, Accountability and Disposal. i t FIELD INSTRUMENTATION 'i 1 i Radiation detection instruments are controlled, maintained and ~ calibrated at specified < periods to ensure accuracy is maintained within specified limits. Procedures for i calibration, maintenance, control and operation of radiation detection instruments meet ' -l the criteria provided in American National Standard Institute (ANSI) N323-1978 (Ref.' l

10) and N42.17A-1989 (Ref.11).

l s Source checks.to determine detection efficiency are perfonned on gas-flow ' detectors. l Response checks to determine detector operability are performed on NaI(TI) detectors. 1 These checks are performed daily, both before and after each use. Instnunent source check and response check. requirements are found below in : Table 3-12.' i ~ l i i l 1 l b l ) 1 1 0:\\PROCSWIN SURVTINALSUR REVISION O 22 March 2.1995 I l 1

FSV FINAL SURVEY REPORT REPOWER AREA Table 3-12 Instnanent Sointe Check, Response Check, and Calibration Requimnents 1 1 Instrument Test Type Source Frequency Ludlum Model 2350 Data legger Instrument calibration Electronic Six months. calibration 2 Ludlum Model 43-68B,125 cm Detector uniformity and Tc-99 Minimum twice daily l Gas-flow Proportional Detector (a source check when in use and p) Instrument calibration Tc-99 Six months Ludlum Model 44-2 Nal(TI) Detector response check Cs 137 Minimum twice daily Scintillation Detector when in use Instrument calibration Cs-137 Six months 1 Canberra Genie-PC' Gamma Gamma efficiency and Mixed gamma Annually or as i Spectroscopy System energy calibrations needed per ? Radiochemistry / Training Supervisor Gamma efficiency and Mixed gamma Daily when in use ) energy QC check l Tennelec LB-5100 Gas-flow Alpha plateau Th-230 Once per year l Proportional Counting System (a,p) Beta plateau Tc-99 Once per year Efficiency and QC checks Th-230 Daily when ht use Tc-99 I Beckman LS3801 Calibration Tritium Six months Liquid Scintillation Counter Efficiency Tritium Daily when in use l l t The checks described below are performed on all detectors used for final survey total i surface activity measurements ( A uniformity check is performed on each 125 cm gas-flow proportional 2 detector prior to being placed into service and, at a minimum, twice daily when in use. This procedure requires counting a NIST traceable source i at each end of the detector, and verifying that the range of the two counts l did not exceed i10% of the mean. If an acceptable uniformity check is i obtained, an emciency is calculated using the mean source count. An emciency (c/d) is determined daily, before and after use, for the gas-l flow proportional detector. The pre-use emciency is used to calculate surface activity in terms of dpm/100 cm. The post-use emciency is used j 2 GAPROCsTIN,sURVTINALsUR REVIsloN O 23 March 2.1995

,j' ,.i., 'f ( q T REPOWER AREA ~ to verify that the detector had been operating properly during the survey. -

If the post-use efficiency is not'within t10% of the pre'use efficiency, l

then: (1)..the lower efficiency is' used~ for' purposes of converting 2 measurements to proper reporting units, or. (2) the survey data-am. invalidated and a re-survey performed. . i - A pre-use and post-use; response check is performed daily for each NaI(TI) detector when in' use. Four measurements are taken: one on j' contact; one at a distance of 6 inches; one at a distance of 18 inches; and - one at a distance of 36 inches from a Cs-137' source of kpproximately.5 1 .'pci.' The results of these response checks'.are. compared to an initial - response check performed when the detector was placed into service. An acceptability range of 10% is used to verify detector operability. - i 1 The above checks are also' performed following any repairs or changes to the detector . parameters (e.g., mylar. window change, change cable length, abnormal operating temperature conditions, etc.) or upon return from vendor calibration. A dedicated instrument facility is provided to control, repair, calibrate and' issue all. radiation detection instrumentation and sources usedcat the FSV site. - Routine maintenance and repairs are performed by qualified personnel, in accordance with approved procedures. To control and track instrumentation, a log and database isi maintained, indicating the location and status of all istrumentation at the FSV site. j The database is also utilized to identify instrumentation due for calibration.- Calibration - services suppliers are evaluated and approved in accordance with the WT PQP prior - j to the initiation of procurement documents. WT QA reviews procurement documents ; q for calibration services for the inclusion of-appropriate quality requirements and - -l perform receipt inspections of returned instrumentation and associated documentation. After receipt inspection scaptwe and release by WT QA, each instrument is then tested to determine detector efficiency or response tested to obtain initial response test data and to verify operability before returning to service. ANALYTICAL INSTRUMENTATION The radiochemistrylaboratoryinstmmentQCprogramwasdevelopedandimplemented to comply with requirements set forth in the FSV Decommissioning Plan and the.WT PQP. The radiochemistry laboratory is equipped with a Tennelec alpha / beta gas flow proportional counter, a Canberra gamma spectroscopy system, and a Beckman LS3801 liquid scintillation counter for tritium samples. The QC source checks and calibration type and frequency for this equipment are listed in Table 3-12. - Radiochemistry-procedures detail the calibration and operation of laboratory equipment. Background and source checks are performed on the Tennelec alpha / beta counter and the Beckman LS3801 liquid scintillation counter daily, when in use. Reference i standards traceable to NIST are used for instmment calibration. G:WRoCSTIN,SURYTINALSUR REVISION O 24 March 2.1995 -a

5 FSV FINAL St.2VEY REPORT [ REPOWER AREA w Control' charts, calibration logs:ami sample analysis logs are mainmined for all ' laboratory equipment. Chi-square tests are performed to check system performance and j

to Lderme ' acceptable < operating : ranges for laboratory L gas-flow-proportional; instrumentation.

~ I VERIFICATipN MEASUREMENTS ) Verification measurements, which included duplicate soil and liquid samples, were j collected in accordance with procedure FSV-SC-FRS-I-109, Final Surwy-Quality i Control to verify the conclusions drawn regarding fmal radiological status of the'- ~ - location where the sample was collected. Instances where the results of QC verification 3 measurements exceed any action level or guideline value are investigated. The Concrete Slab at the Security Fence was selected as thel survey unit for.QC verification measurement. ~ The verification consisted of a resurvey which duplicated the type and frequency of the initial survey nwasurements. The survey units consisting of surface and subsurface soil, and liquid (groundwater and - septic tank influent) were also selected for duplicate sampling. Duplicate samples were. collected at a minimum of 5% of the required sampling locations within these survey units. l 3.9 DATA ANALYSIS The methods and equations used for fmal survey data analysis were based primarily on -l - the guidance provided in draft NUREG/CR-5849 (Ref. 8). These ' equations are ' presented in the FSV Final Survey Plan (Ref.1) and FSV commitments to NRC RAls - - (Ref. 2, 3, and 4).~ 1 . Processing of survey data was performed independently for each survey.~ unit. The j basic steps included: ) Field measurements converted to reporting units Statistical analysis of data - Individual and average measurements compared against action levels Measurements screened against guideline values QC replicate sample results compared to original fmal survey results Discrepancies resolved and fmal data report generated - Survey data downloaded from field instruments and sample analysis results acquired from laboratory measurements were input into a computer database for statistical G:\\PRoCS\\ FIN _SURV\\FINALSUR REVISloN O 25 warch 2.1995 -

[' - 7 . PSV FINAL SURVEY REPORT 1 g REPOWER AREA q h evaluation, report preparation and archival. ; Database input and data control were performed in accordance with approved procedures. 1 - CONVERSION TO REPORTING' UNITS. -i ' All measurements were converted to the appropriate units for comparison with release: ~ limits in' accordance with the FSV Final Survey Plan (Ref. :1))and' approved _ implementing procedures. Surface activity measurements were converted to units of ~ il 2 disintegrations per minute (dpm) per 100 cm by subtraction of background values and converting the net ' counts per minute to dpm/100 cm using the appropriate detector. 2 i

efficiencies (corrected for detector area, as appropriate). Exposure rate measurements; u

were measured in units of counts per minute (cpm) and converted to units of R/hr and ' y the' background value subtracted to obtain net Lexposure rate. Soil and' liquid - radionuclide concentrations were reported in units of pCi/g for soil and 'pCi/ml for. ] liquids. The results were converted to pCi/g or pCi/ml for comparison and report - .j preparation. STATISTICAL ANALYSIS Survey locations, number of measurements and methods of statistical evaluation were based on the requirements specified'in the FSV Final. Survey. Plan-(Ref. :1) and-I approved implementing procedures. 1 1 Initial analysis of final. survey data-for unaffected areas included a. correction for. j background levels and then a comparison of the individual net measurement results with j the MDA, and the applicable action levels. 1 i ACTION IFVFT AND GUIDRIINE VALUE SCREENING ) J j Surfaces and Structures Removable and total surface activity measurements found in excess of MDA require further evaluation or investigation. If the measurement value is verifed to be in excess of 25% of the' guideline value (GLV), and due to the presence of licensed material, j the survey unit (or newly. defined subunit) will be reclassified as affected and resurveyed.

l 1

Of the 434 measurements for total and removable surface activity collected within the 5 survey units,12 measurements were in' excess of MDA: 11 total surface activity _ measurements and I removable alpha activity measurements. Two of the total surface activity measurements' greater than MDA were obtained from metal objects (circular. plates), which were removed from the repower area for further evaluation. Analysis ' of the metal by gamma spectroscopy indicated that the elevated surface activity was due to naturally occurring radionuclides and not licensed material. Ten of the elevated total surface activity measurements were from the group of Miscellaneous Metal Surfaces. Investigation surveys were performed which consisted of a scan survey and 5 additional GAPRoCSWIN,5URvWINALSUR REVISloN0 26 March 2.1995

's FSV FINAL SURVEY REPORT 1 REPOWER AREA j -t J measurements lat the locationiof each of the 4 most elevated measurements. ' All . investigation measurements were :less: than MDA.0 The results-of the -initial i measurements and the investigation measurements have been included in the statistical x evaluation for reporting purposes.l The results of these investigation measurements can be found in Appendix A; Table A-2. The remaining total surface activity measurement : . reported in excess of the MDA was collected'during an investigation survey of the.- ~ - Miscellaneous Concrete Surfaces. The local area background value assigned to the-1 initial set of measurements was evaluated.- For the investigation: survey, 'which'. 3 consisted of a resurvey for total surface activity, a local area background was identified ~ =; x which was more representative of the local area background at the location selected for' off site background determination. The results of the investigation survey, including the measurement in excess of MDA, have been included in the statistical evaluation for : l reporting purposes.- The removable alpha activity measurement'(1.95 dpm/100 cm ) was slightly greater. 2-i than the MDA of 1.64 dpm/100 cm, The smear sample was recounted and found to.. 2 be less than the MDA. The results of the initial measurement has been included in the. statistical evaluation for reporting purposes. None of the measurements for total and ; removable surface activity were in excess of 25% of the guideline value due to'the presence oflicensed material. .i A sediment sample was also collected from a valve pit in the repower area, in addition l to surface activity measurements. This sample was andyzed by gamma spectrometry. No' activity was detected in this sample in excess of the MDA. After verifying that all surface activity measurement results (total and removable) are less than the' guideline values and investigating measurements exceeding applicable action levels, the critical level (I,), the survey unit mean, the standard deviation, and' j the 95% confidence level of the mean were calculated. These ' calculations are~in-j accordance with the FSV Final Survey Plan (Ref.1) and applicable implementmg q procedures. l A survey unit is considered acceptable for release for unrestricted use based on total and removable activity measurements, if the individual net measurement results are less than the guideline value, and the 95% confidence level of the mean is less than the - guideline value. A survey unit is considered acceptable for release for unrestricted use based on - .I exposure rate measurements, if the individual net measurement results are less than 5. R/hr above the background exposure rate, and the 95% confidence level of the mean is less than the guideline value. All survey units within the repower area' satisfy these criteria. Total surface activity measurements of metal surfaces collected during final surveys perforined in the repower area were not corrected for material background. 4 - G:WROCSTIN,,sURVTINALSUR REVISION O i 27 March 2.1995 1

r..

l FSV FINAL SURVEY REPORT REPOWER AREA + B l h Open Land Areas. If concentrations in soil'and water arc found to be in excess of the MDA, after correction for background levels, further evaluation or investigation is required. If any of the corrected measurement values are in excess of 25% of the guideline.value (not -l yet defined for FSV), the survey unit (or newly-defined subunit) will be reclassified as i affected and resurveyed. In the repower area,47 surface and subsurface soil samples were cc!!ceted. Liquid-samples were collected from the 4 monitoring wells. Liquid and sedunent samples were collected from the septic tanh located in the repower area. None of the sanples. j indicated thepresence oflicensed material aper correctionfor background radionuclide 1 concentrations. i A survey unit is considered acceptable for release for unrestricted use based.on j exposure rate measurements, if the individual net measurement results are less than 5 i pR/hr above the background exposure rate, and the 95% ' confidence level of the mean l is less than the guideline value. All survey units within the repower area satisfy these Criteria. \\ I i i i i ~ ~ l f l l l ') .I i i ) 0:\\PROCSTIN,SURV\\FINALSUR REVISION O 28 March 2.1995 1

,,,n .Y ~ . PSV FWAL SURVEY REPORT d RErowER AREi 1

1

4.0 L

' FNAL SURVEY RESUL*IS 1 1 4 CA pimmary of the survey results'is'provided _in this section.' The' tables included in 'this j section summarize the data collected for each survey unit. '-The graphs pdrei in the figures represent final survey data and provide a visual comparison with the critical level < l; . (14 and MDA.- In accordance with guidance provided in NUREG/CR-5849 (Ref 8),' actual-l . analysis results (positive or negative) are presented rather than reporting the MDA. The=. I measurement and sample. data used to; generate the tables' and graphs are provided in; Appendices ~ A and B. ,y ) The Concrete Slab at the Security Fence was selected as the survey unit for QC verification j measurement for surfaces and structures. Additional QC samples were collected at 5% of 'j the surface and subsurface soil sampling locations.' The results of the concrete verification y measurements are included in Appendix A. The results of the surface and subsurface soit j verification measurements are included in Appendix B.' j q The repower survey area was divided into two basic survey categories of survey units-structures and surfaces, and open land.. The area 'was further divided into survey units. ) The results presented in this section are structured according to the survey categories. l i 4.1 SURFACES AND STRUCTURES The results of the me surements for total and removable surface' activity have been j convened to proper reporting units of dpm/100 cm. Exposure r.1.nessurements were i 2 taken at I meter from tim surface and reported in units of pR/hr.' Measurement results from concrete surfaces pesented in this section have been corrected for background. ~ The results of total and remcvable surface activity and exposure rate measurements at 1 meter from the surface are presented in a graphical format.' All measurements were found to be below 25% of the guideline value for release for unrestricted use. QC1 Verification measurements support the conclusions of final survey regarding the radiological status of the survey unit. During initial survey of miscellaneous metal surfaces, two metal plates (carbon steel) covering the top of valve risers were identified with total surface activity (fixed) slightly in excess of 25% of the guideline value for release for unrestricted use (maximum activity of 1546 dpm/100 cm ). Investigation revealed that the plates were .l 2 fabricated on site. Investigative surveys within the risers and on the underside of the plates indicated no elevated surface activity in excess of MDA. Further analysis of the plates by gamma spectroscopy indicated that the only radionuclides present were those found in the thorium and uranium decay cbin (naturally-occurring radionuclides). Activity measurements for these items were excluded from statistical evaluation and data reporting for this survey unit. ' 0:\\PRoCSTIN,5URVWrNAL.SUR REVISION O 29 Mmh 2.1995 -~

e /PSV FINAL SURVEY REPORT ~ q N AREA Total and n.mnvahie hrfac, Activirv - l i ? Approximately 230 measurements for total surface activity, and 204 measurements for j y removable activiry were obtained in all 5 survey units. All but 11 measurements for ' i s total ' surface activity and 1_ removable alpha surface activity measurements reported - 1 ~ were less than the MDA. Of these 11' total surface' activity measurements'in excess of f '! ~ the MDA',' 10 of the measurements were obtained from Miscellaneous Metal Surfaces. All measurements were less than.25%.of. the applicable limit for release' for: eP unrestricted use; the'4 most elevated measurements were selected for investigation.- i Investigation surveys were performed, which included a scan survey and 5 additional

i measurements, for each initial 4 most elevated measurements.. All investigation.

measurement results for each of the'4 initial elevated measurements were less than4 -l MDA. The results of the initial measurements and the investigation rneasurements have. 1 been included in the statistical evaluation for reporting purposes. jy The remaining total surface activity measurement reported in exass of the MDA was collected during an investigation survey of the Miscellaneous Concrete Surfaces. The background values assigned to the initial set of measurements were evaluated and 1 adjusted for the investigation survey to be more representative of the location used for - off site background determination. l The removable alpha activity measurement (1.95 dpm/100 cm ) was slightly greater ' 2 than the MDA of 1.64 dpm/100 cm. The smear sample was recounted and found to - .l 2 be less than the MDA. 'i Table 4-1 i Total Smface Activity (dym/100 cm8) S 'UCL-Critical Sid (95%) of Description - location Codes N MDA level Mean' Dev. Max Mean - Valve Pit 0002A0QS01 10-722.2 341.4 -260.0 388.9 284.0 -34.6 i Miscellaneous Metal Surfaces 0002A0QS01 56 606.0 283.3 302.7 366.0 !!61.8 '485.18 0002AlQS01 Concrete Slab at Security Fence 0002A0AF01 30 792.4 376.5 -24.4 ' 227.9 435.3 46.3 Miscellaneous Concrete Surfaces 0002AIAF01 44 787.0 374.2 53.5 398.3 1060.0 154.7 Evaporative Cooler Bids i East & South Walls below 2 ineters 0002A0QW01 60 608.0 284.3 40.0 189.2 495.8 81.1 ' Evaporative Cooler Bids East & South Foundation Walls 0002A0AWO2 30 782.9 371.7 -145.4 336.6 522.2 -41.0 local mirrect wavity mammaremean of metal sudaces collecess aminiqg the nest survey of me sepower area were not corrected for masenal background. CAPROCSWIN,5URVWINALSUR REVIslON0 30 warch 2.1995

FSV MAL SURVEY REPORT REPOWER AREA .l 1600 1400 [ 1200 GLY 1000 -{ M MDA 600 'O 14 I O -m _ m m 200 d h 2 f 5 c- ~ -400 p -600 t. q 1000 2 -1200 -1400 j 1600 L Total Surface Activity (dpm/100 cm9 ~i Figure 4-1 Valve Pit l I. l t I' 1600 1400 1200 ULY f 1000 800 l M l MDA 6 400 l Ela g4 g l . l-i.. h I h 0 0 nb 00 Om R l n n l ,ll U ~ d3' -200 i 400 -1000 -1200 -1400 I i 1600 i Total Surface Activity (dpm/100 cm9 l Figure 4-2 Miscellaneous Metal Surfaces l 0:7ROCSTIN,SURVTINALSUR REVMION O 3I March 2.1995

Y-FSV FWAL SURVEY REPORT REPOWER AREA 1600 1400 gg GLV 1000 800 MDA 600 400 14 200 0~7 07 7. ,.. L n. k k 0 a r rg -400 -600 -800 -1000 -1200 -1400 -1600 Tmal Surface Activity (dpm/100 cm9 Figure 4-3 Concrete Slab at the Security Fence 1600 lGLV 1400 1200 1000 800 MDA 600 400 14 r.l.l l. (([rrtr[I((,..L rjr r L Lt tt t t L 600 -800 -1000 -1200 -1400 -1600 TotalSurface Activity (dpm/100cm9 Figure 4-4 Miscellaneous Concrete Surfaces ) 0.\\PROCSTIN,SURVWINALSUR REVISION O 32 March 2,1995

.L FSV FNAL SURVEY REPORT i g REPOWER AREA 1600 1400 1200 cLv 1000 800 l 600 MDA 400 g _.t.,,.,,,,,,(,. le 0lllstgl I..tg,. alt,,.g 1. 'a. (., -400 40 -800 1000 1200 -1400 -1600 Total Surface Aedvity (dpm/100cm8) Figure 4-5 Evaporative Cooler Building East & South Walls Below 2 Meters i t 1600 1400 1200 GLV 1000 800 MDA 600 400 ___________;_l_ ______[__t le = 0 1,. R. 7

g.,.

i. .,.,.,.L_ -am l 600 -800 i 1000 -1200 i -1400 -1600 Total Surface Actis;q (dpm/100 cm8) Figure 4-6 Evaporative Cooler Building East & South Foundation Walls G:PROCSTIN,$URVTINALSUR REVISION O 33 March 2.1995

.n 4 ' FSV FINAL SURVEY REPORT l o REPOWER AREA <j

i Removable Activity Sample Results i

No significant removable alpha or beta activity was identified for any of the 204 sinears obtained-rrom the 5 survey units (100% of the smears analyzed for alpha activity). All but 1 measurement .l value, once corrected for instrument background, were below MDA, such that graphical presentation, 'of the data in relation lo MDA would not bc==aaiagful. i .e ,j Table 42 ' l Removable seen Acdvity' l - (a%mn/100 can*) j 1 . t Critical UCL. l Description i arahan Codes N MDA Level Mean Sed Dev Max (95%) of Mean l ~ Valve Pit 0002A0QS01 10 23.0 8.5 1.5 2.8 7.3 3.2 Miscellaneous Metal Surfaces 0002A0QS01 38 23.0 8.5 0.4 4.6 16.1- ' l.6 Concrete Slab at the Security Fence 0002A0AP01 30 22.6 8.3 0.3 3.8 7.5 0.9 Miscellaneous Concrete Surfaces 0002A0AF01 36 22.6 8.3 0.0 3.0 - 5.3 0.8 l f .. Evaporative Cooler Bids 0002A0QW01 60 17.7 5.9 2.0 3.4 ~ ' 8.2 2.7 East & South Walls below 2 inesers I Evaporative Cooler Bids. 0002A0AWO2 30 24.4 9.2 -2.2 2.8 4.0 -1.3 ! East & South Foundation Walls l Table 63 i Reasovable Alpha Activity (a%mn/100 cm8) Critical UCL' Description I acadaa Codes N MDA-level Mean Sid Dev Max (95%) of ' Mean i Valve Pit 0002A0QS01 10 1.6 0.8 -0.03 0.2 0.3 0.1 - i i Miscellaneous Metal Surfaces 0002A0QS01 38 1.6 0.8 0.15 0.5 1.95 0.3 Concrete Slab at the Security Fence 0002A0AF01 30 1.6 0.8 -0.07 0.32 0.98 0.04 ' t Miscellaneous Concrete Surfaces 0002A0AF01 36 1.6 0.8 0.02 0.34 0.98 0.11 Evaporative Cooler Bids Eut & South Walls below 2 eneters 0002A0QWOI 60 1.6 0.8 0.01 0.4 1.6 0.1 i Evaporative Cooler Bldg 0002A0AWO2 30 1.6 0.8 -0.02 0.4 1.0 0.1 East & South Foundation Wal's GAPROCS' FIN,,5URV\\FINA1..SUR REVISION 0 34 March 2.1995 .. -.. ;., ;: ~...,. _.;__~ - . ~. -

y 1 FSV FINAL SURVEY REPORT { REPOWER AREA Exposure Rate Measurement Results j .q > Exposure rate measurements were collected in 3 of the 5 survey units. These' measurements.were { obtained at a distance of 1 meter from the surface, typically in the-location of the total surface. j activity nicasurement, where space allowed.- All measurement results were less than 5 pR/hr above. ] background. I Table 4-4 i Exposee Rm Resuhs .} ~ (pR/hr) 1:: i UCL (95%) Description Imauon Codes N Mean Sid Dev Max of Mean l Concrete Slab at Security Fence 0002A0AF01 30 1.6 0.6 2.5 1".8 Miscellaneous Concrete Surfaces 0002A0AF01 16 2.0 1.6 3.9' 2.7 j i Miscellaneous Metal Surfaces 0002A0QS01 30 1.7 1.6 4.4 2.2 ? Evaporative Cooler Bldg j East & South Walls below 2 ineters 0002A0QW01 60 0.1 1.4 3.4 0.4 i 1 10 i 9 s 7 i 6 5 GLV 4 i 3 'l 2 r 9_- 9 l $53 I biH uSimru $ ITrTit 17ifTR ~ !~bN-I~ ra -l -2 i 3 { 6 i 7 l -s -9 i f +10 Gamma Measuremems GJt/br) Figure 4-7 l Concrete Slab at the Security Fence I l I i GAPROCSTIN,SURVWINAL.SUR REVISION O l 35 March 2,1995 l

g FSV FINAL SURVEY REPORT - REPOWER AREA 10 9 8 7 6 5 GLV 7-7 3 2 %:- T-- ?? -.- f;: g

]

_f' 6;- g(f T -f_N ;

y

__?j-}p J -2 3 4 5 6 7 -8 -9 10 Gamma Measurmems (gR/ht) Figure 4-8 Miscellaneous Concrete Slabs The proximity to other surfaces precluded exposure rate measurements at a distance of 1 meter for surfaces within the valve pit and the east and south walls of the evaporative cooler building survey units. t i GVRoCS\\ FIN _SURV\\ FINAL.SUR REVISloN O 36 March 2.1995

s-FSV FINAL SURVEY REPORT REPOWER AREA-10 9 s 7 6 5 GLV 4 T ] .. - l ? f 2 t gg____ .. __ _ g __ __ _ _ _-g _ y. _ 7 -2 -3 -4 -6 -7 -8 -9 -10 Gamma Measuremen's (gR/hr) Figure 4-9 Miscellaneous Metal Surfaces 10 9 8 7 6 5 GLV 4 3 2 ' E' l-n = 1 all b n .t IIND R nF1 'nn_ nilR I 0 uu 11--l kg,,,g guu! H" llllEMuud - up 2 3 r -4 -6 -7 -8 -9 10 Gamma Measurements (pR/br) Figure 4-10 Evaporative Cooler Building i East & South Walls Below 2 Meters i G:TROCSTIN,SURV\\ FINAL.SUR REVISION 0 37 March 2,1995

, gl - 'FSV FINAllSURVEY REPORT l REPOWER AREA s '4.2 OPEN LAND AREAS ~ The analysis results for_' soil and water samples are summarized and presented in the ~ following tables. Concentrations of naturally occurring radionuclides are not presented. . The results of 1: meter exposure rate measurements and' water concentrations are; presented in a graphical format. p.ain-wm cc.. s.. tians in herac,==t WJac, soil : - A total of 35 surface and 12 subsurface soil samples were collected'from the repower area. Although samples were analyzed for principal gamma emitters 3.vhich may be i attributed to licensed activities, the results for Cs-137 are detailed. > After correction ' / for environmental -(background) concentrations' of. Cs-137, none 'of the samples - identified the presence of gamma emitting nuclides due to licensed activities. Graphical presentation of this data in relation to MDA is not provided and would not be meaningful. QC Verification samples were collected at 2 surface and 3 subsurface soil sampling locations. Analysis results of these samples support the conclusions of final survey regarding the radiological status of the survey unit. Table 4-5 n.asamenh Analysis of Soils C1/ ) * (P 3 Location Codes Radio- 'Std UCL'(95 %)' -Description - Nuclide N Mean Deviation Max of Mean ' Surface Soils 0002POUL01 thru

Cs-137 35

-0.11 0.032 0.0 ' -0.10-0002 FOUL 35 Subsurface Soils 0002POVLD1 thru Cs 137 12 0.0 0.0 - 0.0 . 0.0 0002POVL12 'Correcasd for Cs-137 ' ^ " levels 2Reference graphed dam for criskal level and MDA values Radionuclide Concentrations in Water Liquid samples were collected from the 4 monitoring wells inside and adjacent to the repower area. Additionally, liquid samples were obtained from the septic influent.' A total of 4 monitoring well samples,3 septic tank samples prior to pumping and 3 septic tank sediment samples after pumping were collected and analyzed for principal gamma emitting radionuclides. All liquid samples were analyzed for tritium. QC replicate o:\\PRCCS\\ FIN,SURV\\FINALSUR REVISION O 38 March 2,1995

FSV FINAL SURVEY REPORT -l REPOWER AREA samples were obtained for each liquid sample collected. No activity was detected in'. .]

any of the samples due to the presence of licensed radionuclides,'after correcting for -

1 environmental radionuclide concentrations. - Analysis of the QC samples confirmed -l ' these results. 1 / ' Table 44 i Radocuclide Analyses of Water - (pCi/nd)m j i Radio-UCL Description Imation Codes Nuclide N Mean..- Sid Dev Max (95%) of I Mean Sepuc Tank Inlet 0002F0WH04 1 thru Cs-137 '6 0.0 0.0 0.0 0.0 l 0002F0WH09 0002F0WH01 Monitoring Wells .thru 0002F0WH03 Cs-137 4 0.0 0.0 ' O0 0.0 and i 0002F0WH10 Septic Tank Inlet 0002F0WH04 thru H3 3 0.22 ' O.16 - 0.41. '. 0.50 j .0002F0WH06 - 1 Monitoring Wells 0002F0WH01 e thru 0002F0WH03 H-3 4 0.66 0.24 0.89 0.94 =ad l 0002F0WH10 1 Refer so the dass graphs for critical level and MDA values (Cs-137). l t l P I i i i i i G:\\PROCSTIN,SURVTINALSUR REVISION O i ,A March 2,1995 .i

' FSV FINAL SURVEY REPORT REPOWER AREA 1 0.8 MDA 0.6 0.4. 14 b.c. 0.2 ,y M M 0. i i Tritum (pCi/ml) Net Activity l; ;ll QC Sample -. Critical Level MDA Figure 4-11 Septic System Upstream of Tank (H-3) i 2 MDA 1.5 I i le 0.5 n. _. _ _ _ _ _ _ _ -... L _._ Tritium (pCi/ml) Net Activity l j-l QC Sample - Critical Level MDA Figure 4-12 Monitoring Wells (H-3) I G:\\PP.OC$ TIN _SURV\\ FINAL.SUR REVISION 0 40 uarth 2, i995

Y REPOWER AREA ^ o .. m n n u e p.e, M, w. u = n-n o utes - o A 'atal of 47.. exposure rate measurements were obtained in the open land area. Typically, these were collected at the same location as the soil samples'.~ All 1 meter. l, exposure rate measurements were less than 5 pR/hr above background. . Table 4-7. Exposure Rede Results

(pR/h6 Description L~a'iaa

.N-Mean' -- Std Dev Max ; UCL (95%) of Codes Mean One-Meter above Location of 0002FOUI.01 35 -0.8-1.5 2.5 .-0.4 General Soil Samples. .thru 0002 FOUL 35 One-Meter above 14 cation of 0002F0VL01 12-1.1 4.8 2.3 Septic Field Soil Samples thru 0002F0Vil2 ' 2.3 10 9 s 7 6 5 GLV-4 3 2 1 3 1 .g j U l L'I E - - ru 11 ra E ra e E 0 nG ly N l IE IS EM DE-lilill3 'EMEuu ik " 2 " lE-B "" 3"" -2 "E a 3 4 5 2 4 -7 -8 -9 10 Gamma Menorements (pR/br) Figure 4-13 One Meter Above Location of General Soil Samples GAPROCSWIN_SURVWINALSUR REVISION 0 41 March 2,1995

FSV FINAL SURVEY REPORT REPOWER AREA .h5 10 9 s 7 6 .l GLV 3 y

,e 2

p; ~~ M-b-

n 0

r--, 'd'~~ $@- 1 d' ~ el-- y -2 -3 -4 4 s -7 -8 -9 -10 ' Gamma Measuremens ( R/hr) Figure 4-14 One Meter Above Location of Septic Field Soil Samples E i 0:\\PROCSTIN SURVTINAL.SUR REVISION O March 2,1995

e m ': x ^ - - ~ ~ - = - - (; - FSV. FINAL SURVEY REPORT s REPOWER AREA i 5.0

SUMMARY

s q y As stated in the body of this report, the repower area was divided into two final survey unit i i R . categories: surfaces.and structures and open land areas. These categories were further-1 ~ ' divided into survey units. ~ Surfaces and Structures .j y r Final survey of surfaces and structures included approximately 570 measurements: 230 1 direct measurements for total surface activity; 204 measurements for removable' alpha and L j

beta activity; and 136 one meter exposure rate measurements.. Of 434 measurements for; l

total and removable surface activity in 5 survey units,12 measurements were in excess of J

MDA: 11 total activity measurements and 1 removable alpha activity measurement. Two of the total surface activity measurements greater than MDA were obtained from metal' objects (circular plates), which were removed from the repower area for further evaluation.

Analysis of the objects by gamma spectroscopy indicated that the elevated surface activity { was-due to naturally occurrmg radionuclides and not licensed material. Investigation surveys were performed to evaluate the remaining 9 elevated total surface activity. { measurements and were found to be less than the guideline value. The removable alpha >j 2 activity measurements (1.95 dpm/100 cm ) which was si5htly greater than the MDA of i 2 1.64 dpm/100 cm was recounted and found to be less ti.an the MDA. 'None of the~. i measurements for total and remomble surface activity were in excess of 25% of the guideline value due to the presence oflicensed material.' . A sediment sample was collected from a valve pit in the repower area, in addition.to l surface activity measurements. This sample was analyzed by gamma spectrometry..No activity was detected in this sample in excess of the MDA.- All surface activity - measurements were significantly less than the guideline values for release for unrestricted 'l use. All individual exposure rate measurements were below 5 R/hr above background. 1 ) Onen I and Arame Final' survey of open land areas included collection of exposure rate measurements, surface and subsurface soil samples, as well as liquid samples from the monitoring wells and septic tanks inside and adjacent to the repower area. A total of 47 exposure rate measurements were obtained at a distance of 1 meter prior to soil sampling. All exposure rate measurements were less than 5 R/hr above background. Surface soil samples were collected at 35 locations (2 samples split for QC analysis). Subsurface soil samples were collected at 12 locations (3 samples split for QC). Analysis of these samples for principal gamma emitters indicated that, after correction for environmental concentrations, no activity h was identified due to the presence oflicensed radionuclides. Liquid samples were collected from the monitoring wells and the septic tank influent. A total of 4 well samples and 6 - septic tank samples were collected and analyzed for principal gamma emitters. QC duplicate samples were collected for all 4 well samples and 3 of the septic tank samples. oAPRoCS\\ FIN,5URV\\ FINAL SUR REVISION O 43 March 2.1995

FSV FINAL SURVEY REPORT REPOWER AREA All liquid samples, including QC, were analyzed for tritium. The tritium concentration in liquid samples was equivalent to environmental' concentrations'. Final survey of the repower area was performed in accordance with the FSV Final Survey - Plan (Ref.1), FSV commitments in response to NRC RAIs (Ref. 2, 3 and 4), and approved. final survey implementing procedures. The implementation of the FSV Final Survey plan and the results of the data acquired, analyzed and presented in this report demonstrate, with a very high degree of conpdence, that the criteria established for release of the repower areafor unrestricted use have been satisped. o:WRoCSTIN_SURVWINAL.SUR REVISION O M March 2.1995

n - FSV FINAL' SURVEY REPORT REPOWER AREA y _ L

6.0 REFERENCES

i p

1. FSVFinal Survey Planfor Site Release, Revision 0, Fort St. Vrain Nuclear Generating j

~ ~ Station Decommissioning Project,' February 17, 1994.

12. PSC letter, Warembourg to Austin (NRC), dated' September 21,1994 (P-94080);

j

Subject:

^ Response to Conunents Regarding the Final Survey Planfor Site Release.'

y P ' 3.' PSC letter, Fisher to Austin (NRC), datedLJanuary 11,L1995 (P-95005);:

Subject:

j ^ Response to Conunents Regarding the Final Survey Planfor Site Release. ai 4. PSC letter, Fisher io Austin (NRC), dated January 20,'1995 (P-95011);

Subject:

Response to Comments Regarding the Final Survey Planfor Site Release. 5. NRC. letter, Erickson to Crawford, dated November 23,1992 (G-92244);

Subject:

l ' ^ Order to Authorize Decommissioning of Fort St. Vrain and Amendment No. 85 to Possession Only License No. DPR-34.- l 6. NRC Regulatory Guide 1.86, Termination ofOperating LicensesforNuclearReactors, l June,1974. 3 t 7. NUREG-0586: Final Generic EnvironmentalImpact Statement on Decommissioning { . ofNuclear Facilities. August,1988. .l.; 8. NUREGICR-5849 Draft, Manualfor Conducting Radiological Surveys in Support of i License Termination. June,1992. i

9. Decommissioning. Plan, Revision 2, Fort St. Vrain Nuclear Generating' Station.

Decommissioning Project, December,1994. 4

10. ANSI N323-1978, Radiation Protection Instrumentation Test and Calibration,1978.

11. ANSI N42.17A-1989, Performance Specificationsfor Health Physics Instrumentation -

Portable Instrumentationfor Use in Normal Environmental Conditions,1989. GAPROCSTIN,5URVWINAL.SUR REVISION O 45 March 2.1995

l i APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA i APPENDIX A l 4 REPOWER AREA SURVEY DATA SURFACES AND STRUCTURES j l i f l i 0:\\PROCSWIN,SURVWINAL.APA REVISION O A-1 March 2.1995 ..m

APPENDIX A-FSV FINAL SURVEY REPORT i SURFACE AND STRUCTURE DATA REPOWER AREA i APPENDIX A F Repower Area Survey Data - Structures and Surfaces The following tables present the data for each measurment and sample perfonned on survey units for surfaces and structures within the repower area. The data, downloaded from field instruments i and sample analysis results acquired from laboratory measurements, was input into a computer database for statistical evaluation, r port preparation and archival. Table A-1 i Valve Pit (Total Surface Activity) Download Net Critical Hle Sarnple Sarnple Activity Level MDA Row Number Number Location Code (dpm/100 cm2) (dpma/100 cui') (dpm/100 cm2) 1 145 38 0002A0QS01 -1039.6 364.3 768.1 2 145 39 0002A0QS01 -210.5 364.3 768.1 3 145 40 0002A0QS01 284.0 364.3 768.1 4 145 41 0002A0QS01 -268.7 364.3 768.1 5 145 42 0002A0QS01 -661.4 364.3 768.1 6 145 43 0002A00S01 -443.3 364.3 768.1 7 145 44 0002A0QS01 -36.0 364.3 768.1 j 8 145 45 0002A0QS01 51.3 364.3 768.1 9 145 46 0002A0QS01 65.8 364.3 768.1 10 145 47 0002A0QS01 341.4 364.3 768.1 i l G:\\PRoCS\\RN,5URV\\FINALAPA REVis!ON O A-2 March 2,1995

. PPENDIX A. FSV FINAL SURVEY REPORT / A - SURFACE AND STRUCTURE DATA-REPOWER AREA Table A-2 l. plac n. nu. Metal Surfaces j (Total Surface ~ Activity) Download Net . Critical Hle Someple Seanple ' Activity '. . Level 'MDA I Row Nussber Numiber 14 cation Code' (dpun/100 can8) (dpun/100 can*) (dpan/100 can8) 1 145 4 0002A0QS01 -278.2 283.3 606.0 2 145 6 0002A0QS01 540 283.3 606.0 -1 3 145 7 0002A0QS01 1001.8 283.3 606.0 l 4 145 8 0002A0QS01 580.0 283.3 606.0 5 145 9 0002A0QS01 143.6 - 283.3 606.0 6 145 10 0002A0QS01 -278.2 283.3 606.0 7 145 11 0002A0QSOI -263.6 283.3 606.0 8 145 12 0002A0QS01 -263.6 283.3 - 606.0 9 145 13 0002A0QS01 70.9 283.3 606.0 10 145 14 0002A0QS01 '.87.3 283.3 606.0 l 11 145 15 0002A0QS01 216.4 283.3 606.0 12 145 16 0002A0QS01 201.8 - 283.3 606.0 13 145 17 0002A0QS01 681.8 283.3 606.0 14 : 145 18 0002A0QS01 347.3 283.3 - 606.0 l { 15 145-19 0002A0QS01 1030.9 283.3 606.0 - 16 145 20 0002A0QS01 521.8 283.3 606.0 17 145 21 0002A0QS01 827.3 283.3 606.0 18 145 22 0002A0QS01 376.4 283.3 606.0 19 145 23 0002A0QS01 492.7 283.3 606.0 l 20 145 24 0002A0QS01 187.3 283.3 606.0 .j 21 145 25 0002A0QS01 172.7 283.3 606.0 i 22 145 26 0002A0QS01 958.2 283.3 606.0 .) 23 145 27 0002A0QS01 434.5 2M 606.0 l 24 145 28 0002A0QS01 216.4 2d5 606.0 ) 25 145 29 0002A0QS01 -89.1 283.3 606.0 26 145 30 0002A0QS01 -16.4 283.3 606.0 I 27 145 31 0002A0QS01 725.5 283.3 606.0 \\ 28 145 32 0002A0QS01 6%.4 283.3 606.0 29 145 33 0002A0QS01 550.9 283.3 606.0 30 145 34 0002A0QS01 696.4 283.3 606.0 31 145 35 0002A0QS01 143.6 283.3 606.0 32 145 36 0002A0QS01 420.0 283.3 606.0 l 33 145 37 0002A0QS01 274.5 283.3 606.0 l 34-145 48 0002A0QS01 1161.8 283.3 606.0 35 145 49 0002A0QSO1 114.5 283.3 606.0 36 145 50 0002A0QS01 681.8 283.3 606.0 G:\\PROCSWIN_SURVTINA1..APA REVISION O A-3 u,tn2.i,95

F i APPENDIX A - FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA' Table A-2 (Continued) Miscellaneous Metal Surfaces. (Total Surface Activity): 'i Download Net Critical Fue Seunple Sesspie Activity IAvel MDA Row Nuenber Nussber le Code (dpe/100 cm8) (dpsm/100 can8) (dysm/100 esm8) 37 210 6 0002AlQS01 -126.7 283.3 606.0 I 38 210 7 0002AlQS01 12.7 - 283.3 606.0 39 210 8 0002AlQS01 245.5 283.3 606.0 ^~ 40 210 9 0002AlQS01 376.4 283.3 606.0 41 210 10 0002AlQS01 594.5 283.3 606.0 l ~ 42-210 11 0002AlQS01 361.8 283.3 606.0 43 210 12 0002AIQS01 405.5 283.3 606.0 1 44 210 13 0002AlQS01 550.9 283.3 606.0 } 45. 210 14 0002AIQS01 361.8 283.3 606.0 46 210 15 0002AlQS01 638.2 283.3 606.0 l 47 210 16 0002AIQS01 172.7 283.3 606.0 48 210 17 0002AlQS01 -45.5 283.3 606.0 f 49 210 18 0002AlQS01 405.5 283.3-606.0 50 210 19 0002AIQSOI 420.0' 283.3 606.0 51 210 20 0002AlQS01 289.1 - 283.3 606.0 l 52 210 21 0002AlQS01 -249.1 283.3 606.0 53 210 22 0002AlQS01 -132.7 283.3 606.0 54 210 23 0002AlQS01 70.9 283.3 606.0 55 210-24 0002AIQS01 -30.9 283.3 606.0 56 210 25 0002AlQS01 245.5 283.3 606.0 i I i b GAPROCSWIN_SURVTINAl APA REVISION O A-4 March 2.1995 f

- APPENDIX A FSV FINAL SURVEY REPORT - SURFACE AND STRUCTURE DATA REPOWER AREA Table A-3 Concrete Slab at Security Fence (Total Surface Activity) Download Net Critical File Sample Sample Activity Level MDA Row Number N umber Location Code (dpm/100 cm8) (dpm/100 cm8) (dpm/100 cm8) 1 122 3 0002A0AF01 231.6 376.5 792.4 2 122 4 0002A0AF01 144.3 376.5 792.4 3 122 5 0002A0AF01 -422.9 376.5 792.4 4 122 6 0002A0AF01 13.4 376.5 792.4 5 122 7 0002A0AF01 435.3 376.5 792.4 6 122 8 0002A0AF01 -88.4 376.5 792.4 7 122 9 0002A0AF01 144.3 376.5 792.4 i 8 122 10 0002A0AF01 -102.9 376.5 792.4 9 122 11 0002A0AF01 362.5 376.5 792.4 10 122 12 0002A0AF01 -102.9 376.5 792.4 11 122 13 0002A0AF01 42.5 376.5 792.4 l 12 122 14 0002A0AF01 28.0 376.5 792.4 13 122 15 0002A0AF01 28.0 376.5 792.4 14 122 16 0002A0AF01 -292.0 376.5 792.4 15 122 17 0002A0AF01 -277.5 376.5 792.4 16 122 18 0002A0AF01 406.2 376.5 792.4 17 122 19 0002A0AF01 -146.6 376.5 792.4 18 122 20 0002A0AF01 -219.3 376.5 792.4 19 122 21 0002A0AF01 -248.4 376.5 792.4 20 122 22 0002A0AF01 -161.1 376.5 792.4 21 122 23 0002A0AF01 -1.1 376.5 792.4 22 122 24 0002A0AF01 -452.0 376.5 792.4 23 122 25 0002A0AF01 -277.5 376.5 792.4 24 122 26 0002A0AF01 86.2 376.5 792.4 25 122 27 0002A0AF01 57.1 376.5 792.4 26 122 28 0002A0AF01 217.1 376.5 792.4 27 122 29 0002A0AF01 -102.9 376.5 792.4 28 122 30 0002A0AF01 188.0 376.5 792.4 29 122 31 0002A0AF01 -73.8 376.5 792.4 30 122 32 0002A0AF01 -146.6 376.5 792.4 4 1 G:\\PROCS\\ FIN SURV\\ FINAL.APA REVIS10N O j A-5 March 2. i995

.~. -- 1 l . APPENDIX A-FSV FINAL SURVEY REPORT 1 SURFACE AND STRUCTURE DATA-- REPOWER AREA ] Table A-4 l Concrete Stab at Security Fence . ' QC Samples. 4 (Total Surface Activity) Derloed. - Net Cdtical j File Sample Sample Activity Level MDA._ Row Number Number Ip=*h Code (dpm/100 can8) (dpan/100 can8) (dpun/100 cm8) 1' 216 6 0002AQAF01 38.4 378.3 7%.4 2 216 7 0002AQAF01 -328.5 378.3 7%.4 -l 3 216 8 0002AQAF01 -255.2 378.3 796.4 f 4 216 9 0002AQAF01 -313.9 378.3-796.4 5 216 10 0002AQAF01 460.7 378.3 7%.4 6 216 11 0002AQAF01 -343.2 378.3 796.4 7 216 12 0002AQAF01 -93.7 378.3 7%.4 8 216 13. 0002AQAF01 -299.2 378.3 796.4 l 9 216 14 0002AQAF01 -93.7 378.3 796.4 10 216 15 0002AQAF01 -299.2 378.3 7%.4 I 11 216 16 0002AQAF01 -357.9 378.3. 7%.4 l 12 216 17 0002AQAF01 -387.3 378.3 796.4 13 216 18 0002AQAF01 -93.7 378.3 796.4 14 216 19 0002AQAF01 -225.8 378.3 796.4 15 216 -20 0002AQAF01 -504.7 378.3 796.4 l 16 216 21 0002AQAF01. -578.1 378.3 - 7%.4 - 17 216 22 0002AQAF01 -328.5 378.3 7%.4 18 216 23 0002AQAF01 -299.2 378.3 7%.4 19 216 24 0002AQAF01 -137.7 378.3. 796.4 20 216 25 0002AQAF01 -211.1 378.3 796.4 21 216 26 0002AQAF01 -328.5 378.3 7%.4 - 22 216 27 0002AQAF01 -79.0 378.3 796.4 23 216 28 0002AQAF01 -328.5 378.3 7%.4 I 24 216 29 0002AQAF01 -460.7 378.3 7%.4 25 216 30 0002AQAF01 -255.2 378.3 7%.4 j 26 216 31 0002AQAF01 -123.0 378.3 7%.4 27 216 32 0002AQAF01 -475.3 378.3 7%.4 l 28 216 33 0002AQAF01 -372.6 378.3 - 7%.4 29 216 34 0002AQAF01 -343.2 378.3 796.4 i 30 216 35 0002AQAF01 -35.0 378.3 7%.4 i i I GAPROCSTIN,,,SURVWINALAPA REVISION O A-6 March 2.1995

APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA Table A-5 - Miscellaneous Concrete Surfaces -(Total Surface Activity) Download Net Critical Mle Sample Sample. Row Number Numsber iar=*Ian Code Activity Level MDA (dym/100 cm8) (dpun/100 cm8) (dpe/100 cm8) 1-213 6 0002AIAF01 88.6 374.2 787.0 2 213-7 0002A1AF01 331.5 374.2 787.0. l 3 213 8 0002A1AF01 -368.5 374.2 787.0 4 213 9 0002A1AF01 -340 374.2 787.0 5 213 10 0002A1AF01 -468.5 374.2 787.0 { f 6 213 11 0002A1AF01 -111.4 374.2 787.0 7 213 12 0002A1AFOI -497.1 374.2 787.0 8 213 13 0002A1AF01 -197.1 374.2 787.0 9 213 14 0002A1AF01 88.6 374.2 787.0 E 10 213 15 0002A1AF01 -l82.8 374.2 787.0 11 213 16 0002A1AF01 -197.1 374.2 787.0 12 213 17 0002A1AF01 -440.0 374.2 787.0 l3 213 18 0002A1AF01 -254.2 374.2 787.0 l 14 213 19 0002A1AF01 -340.0 ~ 374.2 787.0 15 213 20 0002AIAF01 -297.1 374.2 787.0 f 16 213 21 0002A1AF01 -40.0 374.2 787.0 17 213 22 0002A1AF01 517.2 374.2 787.0 18 213 23 0002AIAF01 31.5 374.2 787.0 19 213 24 0002AIAF01 188.6 374.2 787.0 f 20 213 25 0002A1AF01 -511.4 374.2 787.0 21 213 26 0002A1AF01 602.9 374.2 787.0 22 213 27 0002AIAF01 188.6 374.2 787.0 23 213 28 0002AIAF01 74.3 374.2 787.0 24 213 29 0002A1AF01 -125.7 374.2 787.0 25 213 30 0002A1AF01 -440.0 374.2 787.0 26 213 31 0002AIAF01 -168.5 374.2 787.0 27 213 32 0002AIAF01 74.3 374.2 787.0 i 28 213 33 0002A1AF01 102.9 374.2 787.0 29 213 34 0002AIAF01 -140.0 374.2 787.0 30 213 35 0002A1AF01 102.9 374.2 787.0 j 31 213 36 0002AIAF01 -625.7 374.2 787.0 ? 32 213 37 0002AIAF01 88.6 374.2 787.0 33 213 38 0002AIAF01 -82.8 374.2 787.0 34 213 39 0002A1AF01 -11.4 374.2 787.0 i 35 213 40 0002A1AF01 402.9 374.2 787.0 36 213 41 0002AIAF01 317.2 374.2 787.0 1 0:\\PROCSTIN,5URYTINALAPA REVISION 0 i A-7 Mmh 2.M5

APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA Table A-5 (Continued) i Miscellaneous Concrete Surfaces (Total Surface Activity) Download Net Critical File. Sample Sample Activity. Level MDA i Row Number Number Location Code (dpm/100 cm2) (dpan/100 cm2) (dpm/100 cm2) 37 213 42 0002A1AF01 760.0 374.2 787.0 38 213 43 0002A1AF01 588.6 374.2 787.0 7 39 213 44 0002AIAF01 274.3 374.2 787.0 40 213 45 0002A1AF01 702.9 374.2 787.0 41 213 46 0002AIAF01 1060.0 374.2 787.0 42 213 47 0002A1AF01 745.8 374.2 787.0 43 213 48 0002A1AF01 588.6 374.2 787.0 44 213 49 0002A1AF01 274.3 374.2 787.0 i 4 I 1 GAPROCS\\ FIN,SURV\\FINALAPA REVISION O 4 A-8 March 2.1995

J 1 APPENDIX A-- FSV FINAL SURVEY REPORT. . SURFACE AND STRUCTURE DATA' REPOWER AREA. Table A-6 Evap Cooler Bldg, East & South Walls Below 2 Meters (Total Surface Activity) Download Net Critical Flie Semiple Semiple Activity IAvel MDA Row Numiber Numiher. I4 cation Code (dpen/100 cui ) (dyna /100 can8) (dymi/100 cui ) 8 8 1 131 3 0002A0QW01 175.8 284.3 608.0 2 131 4 0002A0QW01 204.8 284.3 608.0 3 131 5 0002A0QW01 190.3 284.3 - 608.0 4 131 6 0002A0QW01 59.4 284.3 608.0 5 131 7 0002A0QW01 103.0 284.3 608.0 i 6 131 8 0002A0QW01 -129.7 284.3 608.0 7 131 9 0002A0QW01 161.2 284.3 608.0 8 131 10 0002A0QW01 437.6 284.3 608.0 9 '131 11-0002A0QW01 437.6 284.3 608.0 10 131 12 0002A0QW01 190.3 284.3 608.0 11 131 13 0002A0QWO1 15.8 284.3 608.0 12 131 14 0002A0QW01 -13.3 284.3 608.0 13 131 15 0002A0QW01 88.5 284.3 608.0 14 131 16 0002A0QW01 -129.7 284.3 608.0 15 131 17 0002A0QW01 -57.0 284.3 608.0 16 131 18 0002A0QWOI 44.8 284.3 608.0 17 131 19 0002A0QW01 73.9 284.3 608.0 18 131 20 0002A0QW01 146.7 284.3 608.0 19 131 21 0002A0QW01 117.6 284.3 608.0 20 131 22 0002A0QW01 -71.5 284.3 608.0 21 131 23 0002A0QW01 -71.5 284.3 608.0 22 131 24 0002A0QW01 -13.3 284.3 608.0 23 131 25 0002A0QW01 129.7 284.3 608.0 24 131 26 0002A0QW01 -202.4 284.3 608.0 25 131 27 0002A0QW01 175.8 284.3 608.0 26 131 28 0002A0QW01 15.8 284.3 608.0 27 131 29 0002A0QW01 263.0 284.3 608.0 28 131 30 0002A0QW01 59.4 284.3 608.0 29 131 31 0002A0QW01 44.8 284.3 608.0 30 131 32 0002A0QWO1 204.8 284.3 608.0 31 131 33 0002A0QWO1 495.8 284.3 608.0 32 131 34 0002A0QW01 -71.5 284.3 608.0 33 131 35 0002A0QW01 335.8 284.3 608.0 34 131 36 0002A0QW01 277.6 284.3 608.0 35 131 37 0002A0QW01 306.7 284.3 608.0 36 131 38 0002A0QW01 1.2 284.3 608.0 j G:PROCSTIN,,5URV71NALAPA REVISION 0 l A-9 u m u.1995 I

[. APPENDIX A' FSV FINAL SURVEY REPORT

SURFACE AND STRUCTURE DATA REPOWER AREA j

Table A-6 (Continued) Evap Cooler Bldg, East & South Walls Below 2 Meters . (Total Surface Activity) r Download Net Critical ] Mle Sample J 'Sesmple Activity Level MDA-j Row Number Number - Location Code (dpun/100 cm8) (dpan/100 cm*) (dpm/100 cm8) 37 131 39 0002A0QW01 408.5-284.3 608.0 l 38 131 - 40 0002A0QW01 117.6 284.3-608.0 l 39-131 41 0002A0QW01. 30.3 284.3 608.0 40 131 42 0002A0QW01 -115.2 284.3 608.0 -) 41-131 43 0002A0QW01 -86.1 284.3 608.0 42 131 44. 0002A0QW01 -115.2 284.3. 608.0 43 131 45 . 0002A0QW01 -100.6 284.3

608.0 j

44 131 46 0002A0QWOI -289.7 . ?84.3 608.0 ~ 45 131 47 0002A0QW01 -71.5 284.3 608.0 46 131 48 0002A0QW01 -86.1 284.3 608.0 47 131 49 0002A0QW01 -71.5 284.3 608.0 48 131 50 0002A0QWOI -71.5 - 284.3 608.0 49 131 51 0002A0QW01 233.9 284.3 608.0-50 131 52 0002A0QW01 -115.2 284.3 608.0 51 131 53 0002A0QW01. 15.8 284.3 608.0 52 131-54 0002A0QW01 246.1 284.3 608.0 53 131 55 0002A0QW01 -289.7 284.3 608.0 54 131 56 0002A0QW01 -57.0 284.3 608.0 - 55 131 57 0002A0QW01 -275.2 284.3. 608.0 56 131 58 0002A0QW01 -86.1 284.3 608.0 57 131 59 - 0002A0QW01 -231.5 284.3 608.0 58 131 60 0002A0QWOI -86.I 284.3 608.0 59 131 61 0002A0QW01 -71.5 284.3 608.0 60 131 62 0002A0QW01 321.2 284.3 608.0 1 l GTPROCSWIN_SURVWINAL.APA REVISION 0 I A - 10 w.,ch 2. i995

I APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA j i Table A-7 Evap Cooler Bldg, East & South Foundation Walls l (Total Surface Activity) Download Net Critical File. Saumple Sasaple Activity I m et MDA j Row Number Nunnber I4 cation Code. (dpsm/100 cm8) (dpun/100 cin8) (dpsm/100 cm8) 144 3 0002A0AWO2 -103.3 371.1 782.9 2 144 4 0002A0AWO2 -176.0 371.1 782.9 i 3 144 5 0002A0AWO2 114.9 371.1 782.9 4 144 6 0002A0AWO2 -30.5 371.1' 782.9 5 144 7 0002A0AWO2 -205.1 371.1 782.9 ll 6 144 8 0002A0AWO2 71.3 371.1 782.9 7 144 9 0002A0AWO2 .-306.9 371.1 782.9 ] 8 144 10 0002A0AWO2 -45.1 371.1 782.9 9 144 11 0002A0AWO2 -74.2 371.1 782.9 10 144 12 0002A0AWD2 -30.5 371.1 782.9 11 144 13 0002A0AWO2 -451.4 371.1 782.9 I 12 144 14 0002A0AWO2 -263.3 371.1 782.9 13 144 15 0002A0AWO2 -641.4 371.1 782.9 14 144 16 0002A0AWO2 -350.5 371.1 782.9 15 144 17 0002A0AWO2 -117.8 371.1 782.9 16 144 18 0002A0AWO2 -88.7 371.1 782.9 j 17 144 19 0002A0AWO2 -59.6 371.1 782.9 18 144 20 0002A0AWO2 4493 371.1 782.9 19 144 21 0002A0AWO2 522.2 371.1 732.9 l I 20 144 22 0002A0AWO2 -597.8 371.1 782.9 21 144 23 0002A0AWO2 -350.5 371.1 782.9 22 144 24 0002A0AWO2 -757.8 371.1 782.9 23 144 25 0002A0AWO2 -932.4 371.1 782.9 24 144 26 0002A0AWO2 114.9 371.I 782.9 ~ 25 144 27 0002A0AWC2 1.4 371.1 782.9 l 26 144 28 0002A0AWO2 -103.3 371.1 782.9 27 144 29 0002A0AWO2 -423.3 371.1 782.9 ] 28 144 30 0002A0AWO2 -205.1 371.1 782.9 29 144 31 0002A0AWO2 391.3 371.1 782.9 30 144 32 0002A0AWO2 289.5 371.1 7823 OAPROC5\\F1N SURVWINAL.APA REVISION 0 A - 11 March 2.1995

M

u APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA Table A-8 Valve Pit (Removable Alpha Activity) i i

Sample Semaple Net Activity Critical Level MDA ' Row Nussber Location Code (dpun/100 cm2) (dymi/100 cm2) (dym/100 cm2) { l 26.276 0002A0QS01 -0.33 0.76 1.64 l l 2 26.277 0002A0QS01 0.33 0.76 1.64 3 26.278 0002A0QS01 0.00 0.76 1.64 4 26.279 0002A0QS01 -0.33 0.76 1.64 5 26.280 0002A0QS01 0.00 0.76 1.64 ( 6 26.281 0002A0QS01 0.00 0.76 1.64 3 7 26.282 0002A0QS01 -0.33 0.76 1.64 8 26.283 0002A0QS01 0.00 0.76 1.64 f 9 26.284 0002A0QS01 0.33 0.76 1.64 10 26.285 0002A0QS01 0.00 0.76 1.64 i i i i 'I i i i ? l i l l l 1 1 GAPROCS' TIN,5URV\\FINu APA REVISION O a A - 12 Mmh 2.1995

APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA f Table A-9 Miscellaneous Metal Surfaces (Removable Alpha Activity) Sample . Sample Net Activity Cntical Level MDA Row Number Location Code (dpm/100 cm8) (dpm/100 cm8) (dpm/100 cm8) 1 26.241 0002A0QS01 0.65 0.76 1.64 2 26.242 0002A0QS01 -0.33 0.76 1.64 3 26.243 0002A0QS01 0.33 0.76 1.64 4 26.244 0002A0QS01 -0.33 0.76 1.64 5 26.245 0002A0QS01 -0.33 0.76 1.64 6 26.246 0002A0QS01 -0.33 0.76 1.64 7 26.247 0002A0QS01 0.33 0.76 1.64 8 26.248 0002A0QS01 -0.33 0.76 1.64 9 26.249 0002A0QS01 0.98 0.76 1.64 10 26.250 0002A0QS01 0.65 0.76 1.M ~ i1 26.251 0002A0QSOI -0.33 0.76 1.64 12 26.252 0002A0QS01 0.00 0.76 1.64 13 26.253 0002A0QS01 -0.33 0.76 1.64 14 26.254 0002A0QS01 0.33 0.76 1.64 15 26.255 0002A0QS01 -0.33 0.76 1.64 16 26.256 0002A0QS01 -0.33 0.76 1.64 17 26.257 0002A0QS01 -0.33 0.76 1.64 l 18 26.258 0002A0QS01 0.98 0.76 1.64 19 26.259 0002A0QS01 0.00 0.76 1.64 20 26.260 0002A0QS01 0.33 0.76 1.64 ] 21 26.261 0002A0QSO1 0.00 0.76 1.64 ) 22 26.262 0002A0QS01 -0.33 0.76 1.64 23 26.263 0002A0QS01 0.00 0.76 1.64 24 26.264 0002A0QS01 1.95 0.76 1.64 25 26.265 0002A0QS01 -0.33 0.76 1.64 26 26.266 0002A0QS01 0.33 0.76 1.64 27 26.267 0002A0QS01 0.65 0.76 1.64 28 26.268 0002A0QS01 0.65 0.76 1.64 29 26.269 0002A0QS01 0.00 0.76 1.64 30 26.270 0002A0QS01 0.33 0.76 1.64 31 26.271 0002A0QSO1 0.33 0.76 1.64 32 26.272 0002A0QS01 -0.33 0.76 1.64 33 26.273 0002A0QS01 0.00 0.76 1.64 34 26.274 0002A0QS01 0.00 0.76 1.64 35 26.275 0002A0QS01 -0.33 0.76 1.64 36 26.286 0002A0QS01 1.30 0.76 1.64 1 GAPROCSTIN_SURVTINAL.APA REVISION 0 A - 13 umn 2. i995

i ' APPENDIX A FSV FINAL SURVEY REPORT l SURFACE AND STRUCTURE DATA REPOWER AREA' Table A-9 (Continued) Miscellaneous Metal Surfaces (Removable Alpha Activity) Sample Sample Net Activity Critical Level MDA Row Number Location Code (dpun/100 cm8) (dpun/100 cm8) (dpm/100 cm8) .wr>< 37 26.287 0002A0QS01 -0.33 0.76 1.64 i 38 26.288 0002A0QS01 0.65 0.76 1.64 { i l f i t i l l t 4 I OVROCS\\ FIN _SURMFINALAPA REVISION O A - 14 u m n2.i993

~ APPENDIX A ' FSV FINAL SURVEY REPORT l SURFACE AND STRUCTURE DATA REPOWER AREA j l Table A-10 Concrete Stab at Security Fence (Removable Alpha Activity) l Sample - Sample Net Activity Critical IAvel MDA Row Nanber r eaa= Code (dym/100 can8) (dpun/100 cm8) (dym/100 cm8) .i 1 26.289-0002A0AF01 -0.33 0.76 1.64 l .2 26.290 0002A0AF01 -0.33 0.76 1.64 l 3 26.291 0002A0AF01 -0.33 0.76. 1.64 - l 4 2f.92 0002A0AF01 0.98 0.76 1.54 i 5 26.li3 0002A0AF01 -0.33 0.76 1.f 4 6-26.294 0002A0AF01 0.00 0.76 1 64 7 26.295 0002A0AF01 -0.33 .0.76 364 l 8 26.2 % 0002A0AF01 0.65 0.76 Ili l 9 26.297 0002A0AF01 0.00 0.76 1.64 10 26.298 0002A0AF01 -0.33 0.76 1.65 i 11 26.299 0002A0AF01 -0.33 0.76

.64 -

12 26.300 0002A0AF01 0.00 0.76 1.C $ - i 13 26.301 0002A0AF01 -0.33 0.76 1.64 14 26.302 0002A0AF01 0.00 0.76 1.64 i f 15 26.303 0002A0AF01 0.00 0.76 1.64 16 26.304 0002A0AF01 -0.33 0.76 1.64 17 26.305 0002A0AF01 -0.33 0.76 1.64 I8 26.306 0002A0AF01 0.33 0.76 1.64 1 19 26.307 0002A0AF01 0.00 0.76 1.64 j 20 26.308 0002A0AF01 0.33 0.76 1.64 21 26.309 0002A0AF01 0.00 0.76 1.64 22 26.310 0002A0AF01 0.00' O.76 1.64 23 26.311 0002A0AF01 0.00 0.76 1.64 I 24 26.312 0002A0AF01 -0.33 0.76 1.64 [ 7 26.313 0002A0AF01 -0.33 0.76 1.64 ] 26 26.314 0002A0AF01 -0.33 0.76 1.64 27 26.315 0002A0AF01 -0.33 0.76 1.64 i 28 26.316 0002A0AF01 0.00 0.76 ' l.64 29 26.317 0002A0AF01 0.00 0.76 1.64 30 26.318 0002A0AF01 0.33 0.76. 1.64 GAPROCSTIN SURYTINAL.APA REVISION O A - 15 March 2. i995

1 c APPENDIX A-FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA

REPOWER AREA i

Table A-11' Concrete Slab at Security Fence . QC Sainples. j (Resnovable Alpha Activity) Sample . Sample. Net Activity Critical Level MDA ) Itow . Number - I e Code (dpm/100 can ) (dpe/100 cm8) (dpe/100 cm8) 1 8 j 1 26.385 0002AQAF01 0.00-0.76 1.64 ~ 2 26.386 0002AQAF01 0.32 0.76 1.64 l 3 26.387 0002AQAF01 0.32 0.76 1.64 I 4 26.388 0002AQAF01 -.0.32 0.76-1.64 .5 26.389 0002AQAF01 -0.32 0.76 1.64 J 6 26.390 0002AQAF01 0.00 0.76 1.64 j 7 26.391 0002AQAF01 0.32 0.76 1.64 8 26.392 0002AQAF01 0.32 0.76 1.64 5 f 9 26.393 0002AQAF01 0.00 0.76 1.64 10 26.394 0002AQAF01 0.32 0.76 1.64 11 26.395 0002AQAF01 -0.32 0.76 1.64 I 12 26.396 0002AQAFOI -0.32 0.76 1.64 13 26.397 0002AQAF01 0.00 0.76 1.64 14 26.398 0002AQAF01 -0.32 0.76 1.64 15 26.399 0002AQAF01 -0.32 0.76 1.64 l 16 26.400 0002AQAF01 0.65 0.76 1.64 17 26.401 0002AQAF01 0.00 0.76 1.64 18 26.402 0002AQAF01 -0.32 0.76 1.64 19 26.403 0002AQAF01 -0.32 0.76 1.64 20 26.404 0002AQAF01 -0.32 0.76 1.64 21 26.405 0002AQAF01 -0.32 0.76 1.64 22 26.406 0002AQAF01 0.32 0.76 1.64 23 26.407 0002AQAF01 0.00 0.76 1.64 ) 24 26.408 0002AQAF01 0.00 0.76 1.64 25 26.409 0002AQAF01 0.00 0.76 1.64 26 26.410 0002AQAF01 0.00 0.76 1.64 27 26.411 0002AQAF01 1.30 0.76 1.64 28 26.412 0002AQAF01 0.00 0.76 1.64 29 26.413 0002AQAF01 0.32 0.76 1.64 30 26.414 0002AQAF01 0.00 0.76 1.64 OAPROCSWIN,5URYTINALAPA REVISION 0 A - 16 March 2.1995

__.q ~ APPENDIX A FSV FINAL SURVEY REPORT ' SURFACE AND STRUCTURE DATA REPOWER AREA Table A-12 Mi=*Ilam Concrete Surfaces-(Removable Alpha Activity) Sample Semiple. Net Activity Cdtical Leved MDA Row Namiber Iar=*iam Code . (dpmi/100 can8) (dpmi/100 cui ) (dpmi/100 cm8n 8 j 1 -26.319 0002A0AF01 0.33 0.76 1.64-2 26.320 0002A0AF01 0.00 0.76 1.64 j 3 26.321 0002A0AF01 -0.33 0.76 1.64 1 4 26.322-0002A0AF01 -0.33 0.76 1.64 ) 5 26.323 0002A0AF01 0.00 - 0.76 1.64 l 1 6 26.324 0002A0AF01 0.33 0.76 1.64 7 26.325 0002A0AF01 -0.33 0.76 1.64 8 26.326 0002A0AF01 -0.33 - 0.76 1.64 9 26.327 0002A0AF01 0.00 0.76 1.64 10 26.328 0002A0AF01 0.33 0.76 1.64-1I 26.329 0002A0AF01 0.00 0.76 1.64 l 12 26.330 0002A0AF01 0.33 0.76 1.64 ) 13 26.331 0002A0AF01 -0.33 0.76 1.64 -{ 14 26.332 0002A0AF01 -0.33 0.76 1.64 15 26.333 0002ADAF01 0.33 0.76 1.64 f 16 26.334 0002A0AF01 -0.33 0.76 1.64 17 26.335 0002A0AF01 0.00 0.76 1.64 18 26.336 0002A0AF01 -0.33 0.76 1.64 j 19 26.337 0002A0AF01 0.00 0.76 1.64 20 26.338 0002A0AF01 -0.33 0.76 1.64 ) 21 26.339 0002A0AF01 0.33 0.76 1.64 i 22 26.340 0002A0AF01 0.33 0.76 1.64 ) 23 26.341 0002A0AF01 -0.33 0.76 1.64 24 26.342 0002A0AF01 0.33 0.76 1.64 25 26.343 0002A0AF01 0.98 0.76 1.64 q 26 26.344 0002A0AF01 0.65 0.76 1.64 27 26.345 0002A0AF01 -0.33 0.76 1.64 28 26.346 0002A0AF01 -0.33 0.76 1.64 29 26.347 0002A0AF01 -0.33 0.76 1.64 30 26.348 0002A0AF01 0.00 0.76 1.64 31 26.349 0002A0AF01 0.00 0.76 1.64 32 26.350 0002A0AF01 0.00 0.76 1.64 33 26.351 0002A0AF01 0.33 0.76 1.64 34 26.352 0002A0AF01 -0.33 0.76 1.64 35 26.353 0002A0AF01 0.33 0.76 1.64 36 26.354 0002A0AF01 0.33 0.76 1.64 0.7ROCSTIN,5URVTINAL.APA REVISION O A - 17 Mmh 2. te95

. ~. 4 APPENDIX A - . FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA 'REPOWER AREA Table A-13 East & South Evaporative Cooler _ Building Walls Below 2 Meters l (Removable Alpha Activity) l i \\ Sasaple _ . Sasaple Net Activity Critical Level MDA ~ Row Namiber 14 cation Code (dpsm/100 cai ) (dpsm/100 cua8) (dpan/100 can8) i 8 l

1 26.151 0002A0QW01 0.00 0.76 1.65 2

26.152 0002A0QW01: 0.33 0.76 1.65 3 26.153 0002A0QW01 -0.33 0.76 1.65 i 4 26.154 0002A0QW01 -0.33 0.76 1.65 i 5 26.155 0002A0QW01 0.33 0.76 1.65 i 6 26.156 0002A0QW01 -0.33 0.76 1.65 I 7 26.157 0002A0QW01 -0.33 0.76 1.65 8 26.158 0002A0QW01 0.00 0.76 1.65 9 26.159 0002A0QWOI -0.33 0.76 1.65-l 10 26.160 0002A0QW01 0.66 0.76 1.65 11 26.161 0002A0QW01 -0.33 0.76 1.65 12 26.162 0002A0QW01 1.64 0.76 1.65 13 26.163 0002A0QW01 0.33 0.76 1.65 14 26.164 0002A0QW01 -0.33 0.76 1.65 15 26.165 0002A0QW01 0.00 0.76 1.65 16 26.166 0002A0QW01 0.99 0.76 1.65 17 26.167 0002A0QW01 0.33 0.76 1.65 18 26.168 0002A0QW01 0.33 0.76 -1.65 19 26.169 0002A0QW01 0.66 0.76 1.65 20 26.170 0002A0QW01 0.00 0.76 1.65 21 26.171 0002A0QW01 0.33 0.76 1.65 22 26.172 0002A0QW01 -0.33 0.76 1.65 23 26.173 0002A0QW01 -0.33 0.76 1.65 24 26.174 0002A0QW01 -0.33 0.76 1.65 25 26.175 0002A0QW01 0.00 0.76 1.65 j 26 26.176 0002A0QW01 0.66 0.76 1.65 27 26.177 0002A0QW01 -0.33 -0.76 1.65 28 26.178 0002A0QW01 -0.33 0.76 1.65 29 26.179 0002A0QW01 0.00 0.76 1.65 30 26.I80 0002A0QWOI -0.33 0.76 1.65 31 26.181 0002A0QW01 4.33 0.76 1.64 32 26.I82 0002A0QWO1 0.33 0.76 1.64 33 26.I83 0002A0QWOI -0.33 0.76 1.64-34 26.I84 0002A0QWO1 0.00 0.76 1.64 35 26.I85 0002A0QWO1 0.33 0.76 1.64 36 26.186 0002A0QW01 -0.33 0.76 1.64 GAPROCSTIN SURV\\FINALAPA REVISION O A - 18 March 2.1995

APPENDIX'A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA Table A-13 (Continued) i East & South Evaporative Cooler Building Walls Below 2 Meters (Rernovable Alpha Activity) Seenple Seanple Net Activity Critical Level .MDA Row Nussber imetia= Code (dpai/100 cai ) (dpsn/100 can8) (dpui/100 cm8) 8 37 26.187 0002A0QW01 0.00 0.76 1.64 - 38 26.188 0002A0QW01 0.33 0.76 1.64 1 i 39 26.189 0002A0QW01 0.00 0.76 1.64 j 40 26.190 0002A0QW01 0.65 0.76 1.64 41 26.I91 0002A0QWOI -0.33 0.76 1.64 i 42 26.192 0002A0QW01 0.00 0.76 1.64 f 43 26.193 0002A0QWOI 0.00 0.76 1.64 ') 44 26.194 0002A0QW01 0.00 0.76 1.64 45 26.195 0002A0QW01 -0.33 0.76 1.64 1 46 26.1 % 0002A0QW01 0.65 0.76 1.64 { 47 26.197 0002A0QW01 - 0.00 0.76 1.64 48 26.198 0002A0QW01 -0.33 0.76 1.64 49 26.199 0002A0QW01 0.33 0.76 1.64 j 50 26.200 0002A0QW01 0.33 0.76 1.64 1 l 51 26.201 0002A0QWOI -0.33 0.76 1.64 52 26.202 0002A0QW01 -0.33 0.76 1.64 ) 53 26.203 0002A0QW01 0.00 0.76 1.64 i 54 26.204 0002A0QW01 0.33 0.76 1.64 f 55 26.205 0002A0QW01 0.33 0.76 1.64 56 26.206 0002A0QW01 -0.33 0.76 1.64 { 57 26.207 0002A0QW01 -0.33 0.76 1.64 58 26.208 0002A0QW01 0.00 0.76 1.64 59 26.209 0002A0QW01 -0.33 0.76 1.64 60 26.210 0002A0QW01 0.65 0.76 1.64 I t r ? i [ l t V G:\\ PROC.'. IN,,5URV\\FINALAPA REVISION O A - 19 Mah 2. lW5 y t

I APPENDIX A. FSV FINAL SURVEY REPORT ' SURFACE AND STRUCTURE DATA ~ REPOWER AREA i Table A-14 Evaporative Cooler Building Foundation (East & South) l (Removable Alpha Activity)_. i Samspie Sameple Net Activity-Critical 14 vel MDA l Row Namiber Iwaa= Code (dpsm/100 can8) (dpsm/100 can8) (dpmi/100 cm2) j { 1 26.211 0002A0AWO2 0.98 0.76 1.64 2 26.212 0002A0AWO2 0.33 0.76 1.64-3 26.213 0002A0AWO2 0.00 0.76 1.64' 4 26.214 0002A0AWO2 -0.33 0.76 - 1.64 lj 5 26.215 0002A0AWO2 0.33 0.76 1.64 6 26.216 0002A0AWO2 -0.33 0 76 1.64 2 7 26.217 0002A0AWO2 0.33 0.76 1.64 8 26.218 0002A0AWO2 0.00 0.76 1.64 ) l 9 26.219 0002A0AWO2 -0.33 0.76 1.64 10 26.220 0002A0AWO2 0.00 0.76 1.64 ) 11 26.221 0002A0AWO2 -0.33 0.76 1,64 12 26.222 0002A0AWO2 0.33 .0.76 1.64 13 26.223 0002A0AWO2 -0.33 0.76 1.64 ] 14 26.224 0002A0AWO2 0.a3 0.76 1.64 15 26.225 0002A0AWO2 0.33 0.76 1.64 16 26.226 0002A0AWO2 -0.33 0.76 1.64 17 26.227 0002A0AWO2 0.00 0.76 1.64 18 26.228 0002A0AWO2 -0.33 0.76 1.64 19 26.229 0002A0AWO2 0.33 0.76 1.64 20 26.230 0002A0AWO2 -0.33 0.76 1.64 21 26.231 0002A0AWO2 0.65 0.76 1.64 22 26.232 0002A0AWO2 -0.33 0.76 1.64 23 26.233 0002A0AWO2 -0.33 0.76 1.64 24 26.234 0002A0AWO2 0.00 0.76 1.64 25 26.235 0002A0AWO2 0.33 0.76 1.64 26 26.236 0002A0AWO2 0.33 0.76 1.64 27 26.237 0002A0AWO2 -0.33 0.76 1.64 28 26.238 0002A0AWO2 -0.33 0.76 1.64 29 26.239 0002A0AWO2 -0.33 0.76 1.64 30 26.240 0002A0AWO2 -0.33 0.76 1.64 OAPROCS\\ FIN,SURV\\ FINAL..APA REVISION O A - 20 u rch 2. i995

APPENDIX A FSV FINAL SURVEY REFORT SURFACE AND STRUCTURE DATA REPOWER AREA Table A-15 Valve Pit (Removable Beta Activity) RC Sample Sample Net Activity Critical Level MDA Row Namnber 14eition Code (dpm/100 cm8) (dpm/100 cm2) (dym/100 cm2) 1 26.276 0002A0QS01 2.87 8.45 22.90 2 26.277 0002A0QS01 0.66 8.45 22.90 3 26.278 0002A0QS01 0.66 8.45 22.90 4 26.279 0002A0QS01 7.30 8.45 22.90 5 26.280 0002A0QS01 0.66 8.45 22.90 i 6 26.281 0002A0QS01 2.87 8.45 22.99 I 7 26.282 0002A0QS01 2.87 8.45 22.90 { 8 26.283 0002A0QS01 0.66 8.45 22.90 9 26.284 0002A0QS01 0.66 8.45 22.90 10 26.285 0002A0QS01 -3.76 8.45 22.90 L ) I i 4 I 4 / i I h 0.\\PROCS\\ FIN,5URV\\FINALAPA REVISION O A - 21 March 2.1995 l

- APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA Table A-16 l Miscellaneous Metal Surfaces (Removable Beta Activity) RC Sample Sample Net Activity Critical Level MDA Row Number location Code (dpm/100 cci ) (dpm/100 cm8) (dpm/100 cm2) 2 1 26.241 0002A0QSO1 0.66 8.45 22.90 2 26.242 0002A0QS01 -1.55 8.45 22.90 1 3 26.243 0002A0QS01 1.55 8.45 22.90 ~ 4 26.244 0002A0QS01 -1.55 8.45 22.90 l 5 26.245 0002A0QS01 5.09 8.45 22.90 6 26.246 On02A0QS01 -1.55 8.45 22.90 1 l 7 26.247 0002A0QS01 -1.55 8.45 22.90 ~ 8 26.248 0002A0QS01 -5.97 8.45 22.90 9 26.249 0002A0QS01 0.66 8.45 22.90 10 26.250 0002A0QS01 -3.76 8.45 22.90 l 11 26.251 0002A0QSOI -1.55 8.45 22.90 12 26.252 0002A0QS01 5.09 8.45 22.90 ] 13 26.253 0002A0QS01 -1.55 8.45 22.90 n 14 26.254 0002A0QS01 5.09 8.45 22.90 l ~ 15 26.255 0002A0QS01 0.66 8.45 22.90 16 26.256 0002A0QS01 0.66 2.45 22.90 1 17 26.257 0002A0QS01 0.66 8.45 22.90 18 26.258 0002A0QS01 -3.76 8.45 22.90 19 26.259 0002A0QS01 -3.76 8.45 22.90 20 26.260 0002A0QS01 0.66 8.45 22.90 21 26.261 0002A0QS01 0.66 8.45 22.90 22 26.262 0002A0QS01 0.66 8.45 22.90 23 26.263 0002A0QS01 -1.55 8.45 22.90 24 26.264 0002A0QS01 11.72 8.45 22.90 25 26.265 0002A0QS01 0.66 8.45 22.90 26 26.266 0002A0QS01 -1.55 8.45 22.90 27 26.267 0002A0QS01 16.14 8.45 22.90 28 26.268 0002A0QS01 0.66 8.45 22.90 29 26.269 0002A0QS01 -3.76 8.45 22.90 30 26.270 0002A0QS01 -3.76 8.45 22.90 31 26.271 0002A0QS01 -1.55 8.45 22.90 32 26.272 0002A0QS01 9.51 8.45 22.90 33 26.273 0002A0QS01 -3.76 8.45 22.90 34 26.274 0002A0QS01 -1.55 8.45 22.90 35 26.275 0002A0QS01 -1.55 8.45 22.90 36 25.286 0002A0QS01 5.09 8.45 22.90 G.\\PROCS\\ FIN,SURV\\ FINAL.APA REVISION O A - 22 March 2.1995 i

=.., - APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA Table A-16 (Continued) Miscellaneous Metal Surfaces (Removable Beta Activity) RC Sample Sample Net Activity Critical Level MDA Row Number Location Code (dpm/100em8)- (dym/100 cm2) (dpm/100 cm8) l 37 26.287 0002A0QS01 -5.97 8.45 22.90 j 38 26.288 0002A0QS01 2.87 J.45 22.90 b ( t l l l l G;\\PROCS\\ FIN,5URV\\ FINAL.APA REVISION 0 A - 23 March 2.1995

APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA l Table A'17 Concrete Slab at Security Fence (Removable Beta Activity) t RC Semaple. Sample Net Activity-Critical Level MDA. Row ' Number Imation Code (dpm/100 cm2) (dym/100 cm8) (dps /100 cm8) ? 1 26.289-0002A0AF01 ~ 7.52 8.30 22.58 2-26.290 - 0002A0AF01 5.31 8.30 22.58 ' 3 26.291 0002A0AF01 -3.54 8.30 22.58 4 26.292 0002A0AF01 - 0.88 8.30 - 22.58 j 5 26.293 0002A0AF01 0.88 8.30 22.58 6 26.294 0002A0AF01 3.10 -8.30 22.58 7 26.295 0002A0AF01 - 3.10 8.30 22.58 8 26.2 % 0002A0AF01 -3.54 8.30 22.58 .l 9 26.297 0002A0AF01 -1.33 8.30 22.58 I 10 26.298 0002A0AF01 -3.54 8.30 22.58 11 26.299 0002A0AF01 3.10 8.30 22.58 { 12 26.300 0002A0AF01 -5.75 8.30 22.58 13 26.301 0002A0AF01 -5.75 8.30 22.58 l 14 26.302 0002A0AF01 -3.54 8.30 22.58 15 26.303 0002A0AF01 4. 8.30 22.58 - 16 26.304 0002A0AF01 -5.75 8.30 22.58 f 17 26.305 0002A0AF01 0.88 8.30 22.58 I8 26.306 0002A0AF01 5.31 8.30 22.58 l l 19 26.207 0002A0AF01 0.88 8.30 22.58 20 26.308 0002A0AF01 0.88 8.30 22.58 l 21 26.309 0002A0AF01 3.10 8.30 22.58 22 26.310 0002A0AF01 -5.75 8.30 22.58 23 26.311 0002A0AF01 -3.54 8.30 22.58 ) 24 26.312 0002A0AF01 0.88 8.30 22.58 ] 25 26.313 0002A0AF01 3.10 8.30 22.58 26 26.314 0002A0AF01 -3.54 8.30 22.58 i 27 26.315 0002A0AF01 -1.33 8.30 22.58 f 28-26.316 0002A0AF01 -1.33 8.30 22.58 I 29 26.317 0002A0AF01 5.31 8.30 22.58 30 26.318 0002A0AF01 -1.33 8.30 22.58 OAPROCSTIN,SURVTINAL.APA REVISION O A - 24 March 2.1995

p i 1 APPENDIX A FSV FINAL SURVEY REPORT t - SURFACE AND STRUCTURE DATA ~ REPOWER AREA l , Table A-18 Concrete Slab at Security Fence QC Samples (Removable Beta Activity) RC Sample Sample Net Activity Critical Level MDA* Row Nanber Location Code (dpe/100 cm8) (dpe/100 cm8) (dym/100 cm8) 1 26.385 0002AQAF01 2.83 2.02 4.64 2 26.386 0002AQAF01 0.43 2.02 4.64 3 26.387-0002AQAF01 - 3.48 2.02 4.64. .i 4 26.388 0002AQAF01 0.87 2.02 4.64 l 5 26.389 0002AQAF01 3.48 2.02 4.64 6 26.390 0002AQAF01 2.61 2.02 4.64 j 7 26.391 0002AQAF01 1.30 2.02 4.64 i 8 26.392-0002AQAF01 2.17 2.02 4.64 l 9 26.393 0002AQAF01 1.52 2.02 4.64 10 26.394 0002AQAF01 2.61 2.02 4.64 11 26.395 0002AQAF01 0.43 2.02 4.64 12 26.3 % 0002AQAF01 0.43 2.02 4.64 13 26.397 0002AQAF01 0.00 2.02 4.64 14 26.398 0002AQAF01 0.87 2.02 4.64 15 26.399 0002AQAF01 1.% 2.02 4.64 16 26.400 0002AQAF01 2.61 2.02 - 4.64 17 26.401 0002AQAF01 3.48 2.02 4.64 18 26.402 0002AQAF01 2.61 2.02 4.64 19 26.403 0002AQAF01 0.65 2.02 4.64 j 20 26.404 - 0002AQAF01 1.74 2.02 4.64 21 26.405 0002AQAF01 1.09 2.02 4.64 22 26.406 0002AQAF01 2.61 2.02 4.64 23 26.407 0002AQAF01 0.87 2.02 4.64 24 26.408 0002AQAFO1 2.39 2.02 4.64 25 26.409 0002AQAF01 1.52 2.02 4.64 I 26 26.410 0002AQAF01 1.74 2.02 4.64 27 26.411 0002AQAF01 1.09 2.02 4.64 28 26.412 0002AQAF01 3.91 2.02 4.64 29 26.413 0002AQAF01 0.65 2.02 4.64 30 26.414 0002AQAF01 2.61 2.02 .4.64

• The MDA for this set of measurements was determined for a 10 minute counting interval.

G:TROCSTIN,5URVWINALAPA REVISION 0 A - 25 M rch 2.1995 1

1 APPENDIX A FSV FINAL SURVEY REPORT - g SURFACE AND STRUCTURE DATA-REPOWER AREA d i Table A-19 Miscellaneous Concrete Slabs ] (Removable Beta Activity) RC Sample _. Sample Net Activity Cdtical Level MDA j Row Number Location Code (dpe/100 cm8) (dpm/100 cm8). (dpe/100 cm8) ' -i ~ 1 26.319 0002A0AF01 ' 3.10 8.30 22.58 \\ 2-26.320 0002A0AF01 5.31 8.30 22.58 i -3 26.321 0002A0AF01 3.10 8.30 22.58 -l 4 26.322 0002A0AF01 1.33 8.30' 22.58 1 5 26.323 0002A0AF01 - 3.10 8.30 -22.58 ) 6 26.324 0002A0AF01 -3.54 8.30 22.58 7 26.325 0002A0AF01 0.88 8.30 22.58 8 26.326 0002A0AF01 3.10 8.30 22.58-j 9 26.327 0002A0AF01 -1.33 8.30 22.58 10 26.328 0002A0AF01 3.10 8.30 22.58 'I i1 26.329 0002A0AF01 5.31 8.30 22.58 12 26.330 0002A0AF01, 0.88 8.30 22.58 13 26.331 0002A0AF01 -1.33 8.30 22.58 14 26.332 0002A0AF01 -1.33 8.30 22.58 15 26.333 0002A0AF01 3.10 8.30 22.58 3 16 26.334 0002A0AF01 -5.75 8.30 22.58 h 17 26.335 0002A0AF01 -3.54 8.30 22.58 1 18 26.336 0002A0AF01 0.88 8.30 22.58 l I 19 26.337 0002A0AF01 3.54 8.30 22.58 20 26.338 0002A0AF01 -1.33 8.30 22.58 ,21 26.339 0002A0AF01 0.88 8.30 22.58 22 26.340 0002A0AF01 -5.75 8.30 22.58 I 23 26.341 0002A0AF01 0.88 8.30 22.58 24 26.342 0002A0AF01 3.10 8.30 22.58 25 26.343 0002A0AF01 3.10 8.30 22.58 26 26.344 0002A0AF01 0.88 8.30 22.58 '27 26.345 0002A0AF01 3.10 8.30 22.58 28 26.346 0002A0AF01 -3.54 8.30 22.58 29 26.347 0002A0AF01 -1.33 8.30 22.58 30 26.348 0002A0AF01 -1.33 8.30 22.58 31 26.349 0002A0AF01 -3.54 8.30 22.58 32 26.350 0002A0AF01 0.88 8.30 22.58 33 26.351 0002A0AF01 1.33 8.30 22.58 34 26.352 0002A0AF01 -3.54 8.30 22.58 35 26.353 0002A0AF01 -1.33 8.30 22.58 36 26.354 0002A0AF01 -1.33 8.30 22.58 G:\\PROCSTIN_SURVWINAL.APA REVISION O A - 26 March 2. i995 ~.

i APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA Table A-20 East & South Evaporative Cooler Building Walls Below 2 Meters (Removable Beta Activity) RC Sample Sample Net Activity Critical Level MDA Row Number Location Code (dpm/100 cm8) (dpm/100 cm8) (dpm/100 cm8) 1 26.190 0002A0QW01 8.18 5.86 17.72 2 26.191 0002A0QWOI -0.66 5.86 17.72 3 26.192 0002A0QW01 -2.87 5.86 17.72 j 4 26.193 0002A0QW01 5.97 5.85 17.72 5 26.194 0002A0QW01 5.97 5.86 17.72 6 26.195 0002A0QW01 -0.66 5.86 17.72 7 26.1 % 0002A0QW01 -2.87 5.86 17.72 8 26.197 0002A0QW01 1.55 5.86 17.72 9 26.I98 0002A0QWO1 1.55 5.86 17.72 10 26.199 0002A0QW01 1.55 5.86 17.72 I 11 26.200 0002A0QWO1 3.76 5.86 17.72 12 26.201 0002A0QWOI -0.66 5.86 17.72 13 26.202 0002A0QWO1 1.55 5.86 17.72 14 26.203 0002A0QW01 8.18 5.86 17.72 15 26.204 0002A0QWOI -0.66 5.86 17.72 16 26.205 0002A0QW01 8.18 5.86 17.72 17 26.206 0002A0QW01 1.55 5.86 17.72 i 18 26.207 0002A0QW01 1.55 5.86 17.72 19 26.208 0002A0QW01 3.76 5.86 17.72 20 26.209 0002A0QWO1 8.I8 5.86 17.72 21 26.210 0002A0QW01 3.76 5.86 17.72 22 26.151 0002A0QW01 1.55 5.86 17.72 23 26.152 0002A0QW01 5.97 5.86 17.72 24 26.153 0002A0QW01 5.97 5.86 17.72 25 26.154 0002A0QWOI -2.87 5.86 17.72 26 26.155 0002A0QW01 3.76 5.86 17.72 27 26.156 0002A0QW01 1.55 5.86 17.72 28 26.157 0002A0QW01 5.97 5.86 17.72 29 26.158 0002A0QW01 3.76 5.86 17.72 30 26.159 0002A0QW01 -2.87 5.86 17.72 31 26.I60 0002A0QWO1 1.55 5.86 17.72 32 26.I61 0002A0QWOI -0.66 5.86 17.72 33 26.I62 0002A0QWOI -0.66 5.86 17.72 34 26.163 0002A0QW01 -0.66 5.86 17.72 35 26.I64 0002A0QWO1 1.55 5.86 17.72 36 26.165 0002A0QW01 -2.87 5.86 17.72 i GAPROCSWIN,5URV\\FINALAPA REVISION O A - 27 March 2.1995

( APPENDIX A FSV FINAL SURVEY REPORT - SURFACE AND STRUCTURE DATA REPOWER AREA Table A-20 (Continued)- East & South Evaporative Cooler Building Walls Below 2 Meters (Removable Beta Activity) l 1 RC Sample Sample Net Activity Critical Level MDA i Row Number ie Code (dpm/100 cm8) (dym/100 cm2). (dym/100 cm2) 37 26.166 0002A0QW01 8.18 5.86 17.72 38 26.167 0002A0QW01 3.76 5.86 17.72 l 39 26.168 0002A0QW01 3.76 5.86-17.72 40 26.169. 0002A0QW01 3.76 5.86 17.72 41 26.170 0002A0QW01 1.55 5.86 17.72 i 42 26.171 0002A0QWO1 1.55 5.86 17.72 43 26.172 0002A0QW01 -2.87 5.86 17.72 l 44 26.173 0002A0QW01 3.76 5.86 17.72 45 26.174 0002A0QW01 1.55 5.86 17.72 j 46 26.175 0002A0QW01 1.55 5.86 17.72 -l 47 26.176 0002A0QWOI - 5.97 5.86 17.72 48 26.177 0002A0QW01 -2.87 5.86 17.72 49 26.178 0002A0QW01 -0.66 5.86 17.72 50 26.179 0002A0QW01 1.55 5.86 17.72 l 51 26.I80 0002A0QWO1 8.I8 5.86 17.72 [ 52 26.I81 0002A0QWOI -2.87 5.86 17.72 53 26.!82 0002A0QWOI -0.66 5.86 .17.72 { 54 26.183 0002A0QW01 -2.87 5.86 17.72 55 26.I84 0002A0QWOI -0.66 5.86 17.72 56 26.185 0002A0QW01 5.97 5.86 17.72 57 26.186 0002A0QW01 1.55 5.86 17.72 58 26.I87 0002A0QWO1 1.55 5.86 17.72 59 26.!88 0002A0QWOI -0.66 5.86 17.72 60 26.189 0002A0QWO1 1.55 5.86 17.72 d G:\\PROCSTIN,5URV7INA1..APA REVISION O A - 28 u.,ch2.i995 j

i APPENDIX A FSV FINAL SURVEY REPORT - SURFACE AND STRUCTURE DATA - REPOWER AREA Table A-21 Evaporative Cooler Building Foundation (East & South) (Retnovable Beta Activity) RCSaniple Samspie Net Activity Critical Level MDA Row Nussber I w aa= Code ' (dpas/100 cam 8) ~ dpun/100 cm8) (dpmi/100 cui ) ( 8 1 - 26.211 0002A0AWO2 1.77 - 9.20 24.40 2 26.212 0002A0AWO2 1.77 9.20 24.40 3 26.213 0002A0AWO2 -2.65 9.20 24.40 - 4-26.214 0002A0AWO2 -2.65 9.20 24.40. 5 26.215 0002A0AWO2 -2.65 9.20 24.40 6 26.216 - 0002A0AWO2 -4.87 9.20 24.40 7 26.217 0002A0AWO2 -7.08 9.20 24.40 8 26.218 0002A0AWO2 -0.44 9.20 24.40 9 26.219 0002A0AWO2 1.77 9.20 24.40 10 26.220 0002A0AWO2 -4.87 9.20 24.40 - I II 26.221 0002A0AWO2 4.44 9.20 24.40 - j 12 26.222 0002A0AWO2 -4.87 9.20 24.40 13 26.223 0002A0AWO2 -2.65 9.20 24.40 f 14 26.224 0002A0AWO2 -2.65 9.20 24.40 15 26.225 0002A0AWO2 -2.65 9.20 24.40 16 26.226 0002A0AWO2 -0.44 9.20 24.40 17 26.227 0002A0AWO2 1.77 9.20 24.40 lb 26.228 0002A0AWO2 -2.65 9.20 24.40 19 26.229 0002A0AWO2 -2.65. 9.20 24.40 20 26.230 0002A0AWO2 -2.65 9.20 24.40 21 26.231 0002A0AWO2 -4.87 9.20 24.40 22 26.232 0002A0AWO2 4.87 9.20 24.40 23 26.233 0002A0AWO2 -0.44 9.20 24.40 24 26.234 0002A0AWO2 -7.08 9.20 24.40 25 26.235 0002A0AWO2 3.98 9.20 24.40 26 26.236 0002A0AWO2 -0.44 9.20 24.40 27 26.237 0002A0AWO2 -2.65 9.20 24.40 ) 28 26.238 0002A0AWO2 -2.65 9.20 24.40 29 26.239 0002A0AWO2 -0.44 9.20 24.40 30 26.240 0002A0AWO2 -7.08 9.20 24.40 05PROCS\\ FIN,5URV\\FINALAPA REVISION O A - 29 March 2.1995

APPENDIX A.. SURFACE AND STRUCTURE DATA. FSV FINAL SURVEY REPORT 1 REPOWER AREA l l Table 'A-22 ' Miscellaneous Metal Surfaces f (Gaauna Exposure Rate Measuresnents) Download Legged Sample. i File Sample Semaple Sameple Net -l Row ' Nussber Namnber f e Code Commes SR/hr 1 140 0 0002A0QSO1' I888 1.10 2 140 2 0002A0QS01 1940 1.68 I 3 140 4 0002A0QS01 1930 1.57 4 140 5 0002A0QSO1 '2021 2.58 5 140 6 0002A0QS01 1666 -1.37 6 140 7 0002A0QS01 1650 -1.54 7.- 140 8 0002A0QS01 1622 -1.86 8 140 9 0002A0QS01 1855 0.74 9 140 10 0002A0QS01 1898 1.21 10 140 11 0002A0QS01 1705 -0.93 11 140 12 0002A0QS01 1897 1.20 l 12 140 13 0002A0QSO1 1834 0.50 l 13 140 14 0002A0QS01 1976 2.08 14 140 15 0002A0QS01 2024 2.62 1 15 140 16 0002A0QS01 2032 2.70 16 140 17 0002A0QS01 2023 2.60 i 17 140 18 0002A0QS01 2059 3.00 18 140 19 0002A0QS01 1868 0.86 19 140 20 0002A0QS01 2048 2.88 l 20 140: 21 0002A0QSO1 1979 2.1I 21 140 22 0002A0QS01 1988 2.22 1 22 140' 23 0002A0QSO1 1883 1.05-23 140 24 0002A0QS01 2040 2.79 24 140 25 0002A0QS01 1972 2.04 25 140 26 0002A0QS01 2058 2.99 26 140 27 0002A0QS01 2012 2.48 27 140 28 0002A0QS01 2095 3.41 28 140 29 0002A0QS01 2106 3.53 29. 140 30 0002A0QS01 2086 3.31 30 140 31 0002A0QS01 2188 4.44 GAPROCS\\ FIN,5URV\\ FINAL.APA REVislON 0 A - 30 u.rch 2.i995 i

APPENDIX A FSV FINAL SURVEY REPORT J SURFACE AND STRUCTURE DATA REPO%TR AREA i Table A-23 Concrete Slab at Security Fence (Ganuna Exposure Rate Measurements) Download Logged Sample l File Sample Sample Sample Net Row Number Number Location Code Counts pR/hr 1 137 0 0002A0AF01 2027 0.95 ) 2 137 1 0002A0AF01 2018 0.85 3 137 2 0002A0AF01 2060 1.32 4 137 3 0002A0AF01 2139 2.19 5 137 4 0002A0AF01 2007 0.73 6 137 5 0002A0AF01 2019 0.86 7 137 6 0002A0AF01 2057 1.28 8 137 7 0002A0AF01 2152 2.34 9 137 8 0002A0AF01 2127 2.06 10 137 9 0002A0AF01 2118 1.% i1 137 10 0002A0AF01 2085 1.59 12 137 11 0002A0AF01 2071 1.44 13 137 12 0002A0AF01 2159 2.42 14 137 13 0002A0AF01 2157 2.40 15 137 14 0002A0AF01 2078 1.52 16 137 15 0002A0AF01 2151 2.33 17 137 16 0002A0AF01 2132 2.12 i 18 137 17 0002A0AF01 2111 1.88 19 137 18 0002A0AF01 2071 1.44 20 137 19 0002A0AF01 2087 1.62 21 137 20 0002A0AF01 2169 2.53 22 137 21 0002A0AF01 1997 0.62 23 137 22 0002A0AF01 2142 2.23 24 137 23 0002A0AF01 1980 0.43 25 137 24 0002A0AF01 2122 2.01 26 137 25 0002A0AF01 2042 1.12 27 137 26 0002A0AF01 4114 1.92 28 137 27 0002A0AF01 2101 1.77 29 137 28 0002A0AF01 2037 1.06 30 137 29 0002A0AF01 2031 0.99 G:\\PROCSiFIN,5URV\\ FINAL.APA REVISION 0 A - 31 u.rch2.1995

6 APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA-REPOWER AREA Table A-24 Concrete Slab at Security Fence

QC Samples (Gamma Exposure Rate Measurements)

Download Lo88ed . Semiple - l Mle Semiple - Semiple . Semiple Net l Row Nuenber ' Namiber Location Code - Counts pR/br 1 218 4 0002AQAF01 1935 0.63 ] ~ 2 218 5-0002AQAF01. 1971 1.04 3 218. 0002AQAF01. 10M 0.87 { 4 218 7 0002AQAF01 1989 1.25 5 218 - 8 0002AQAF01 1980 1.15 6 218 9

0002AQAF01

-1939 0.67 7 .218 10 0002AQAFD1 2061 2.08 8 218 11 0002AQAF01 1907 0.31 9 218 12 0002AQAF01 2066 2.13 10 218 13 0002AQAF01 1971 1.04 11 218 14 0002AQAFO1 2006 1.44 l 12 218 15 0002AQAF01 1995 1.32 13 218 16 0002AQAF01 1%7 1.00 f 14 218 17 0002AQAF01 1907 0.31 15 218 18 0002AQAFO1 2032 1.74 16 218 19 0002AQAF01 1924 0.50 17 218 20 0002AQAF01 1893 0.15 18 218 21 . 0002AQAF01 1897 0.19 f 19 218 22 0002AQAF01 2017 1.57 i 1 20 218 23 0002AQAFO1 1912 0.36 21 218 24 0002AQAF01 1986 1.21 22 218 25 0002AQAF01 1889 0.10 23 218 26 0002AQAF01 1856 -0.28 24 218 27 0002AQAF01 1926 0.53 l 25 218 28 0002AQAF01 1973 1.07 26 218 29 0002AQAF01 18'4 -0.07 27 218 30 0002AQAF01 1994 1.31 j 28 218 31 0002AQAF01 1918 0.43 29 218 32 0002AQAF01 1885 0.05 30 218 33 0002AQAF01 1905 0.28 GAPROCSTIN,SURVWINAL.APA REVISION O A - 32 u m n2.i995

1 APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA REPOWER AREA i Table A-25 i Miscellaneous Concrete Surfaces -(Gamma Exposure Rate Measurements) i Download Logged Sample File Sample Sample Sample Net Row Number Number Location Code Counts pR/hr 1 137 30 0002A0AF01 1851 -1.01 2 137 31-0002A0AF01 1838 -1.15 3 137 32 0002A0AF01 1%1 0.21 4 137 33 0002A0AF01 2116 1.94 5 137 34 0002A0AF01 2120 1.98 6 137 35 0002A0AF01 2284 3.81 7 137 36 0002A0AF01 2242 3.34 8 137 37 0002A0AF01 2113 1.91 9 137 38 0002A0AF01 2242 3.34 10 137 39 0002A0AF01 2161 2.44 11 137 40 0002A0AF01 2272 3.67 ] 12 137 41 0002A0AF01 2289 3.86 13 137 42 0002A0AF01 2037 1.06 14 137 43 0002A0AF01 2232 3.23 15 137 44 0002A0AF01 2151 2.33 16 137 45 0002A0AF01 2069 1.42 4 &\\PROCSWIN,SURVWINAL.APA E I ION

.. ~. I APPENDIX A FSV FINAL SURVEY REPORT ~ . SURFACE AND STRUCTURE DATA REPOWER AREA Table A-26 l Evaporative Cooler Building, East & South Walls Below 2 Meters (Gamma Exposure Rate Measurements) Download Legged Sample - l Mie Sample Sample Sample Net ) Row Number Naasber Location Code Counts pR/br l 1-138 0 0002A0QWO1 1945 1.85 .L 2 138 1 0002A0QW01 1810 0.34-l 3 138 2 0002A0QW01 1876 1.08 4 138 3 0002A0QW01 1788 0.10 'l 5 138 4 0002A0QWOI 1767 -0.14 6 138 5 0002A0QW01 1894 1.28 7 138 6-0002A0QWO1 1946 1.86 j 8 138 7 0002A0QW01 1996 2.42 f 9 138 8 0002A0QW01 1953 1.94 10 138 9 0002A0QW01 1991 2.37 I 11 138 10 0002A0QW01 1918 1.55 I 12 138 11 0002A0QW01 1860 0.90 13 138 12 0002A0QW01 1804 0.28 14 138 13 0002A0QW01 1849 0.78 15 138 14 0002A0QWOI 1770 -0.10. 16 138 15 0002A0QW01 1847 0.76 l 17 138 16 0002A0QW01 1859 0.89 18 138 17 0002A0QWO! 1959 2.01 19 138 18 0002A0QW01 1861 0.91 20 138 19 0002A0QW01 1905 1.41 21 138 20 0002A0QW01 1941 1.81 22 138 21 0002A0QW01 1883 1.16 23 138 22 0002A0QW01 1835 0.62 24 138 23 0002A0QW01 1792 0.14 25 138 24 0002A0QWO1 1731 -0.54 26 138 25 0002A0QWO1 1734 0.51 27 138 26 0002A0QW01 1847 0.76 28 138 27 0002A0QW01 1904 1,39 29 138 28 0002A0QWO1 1856 0.86 30 138 29 0002A0QW01 2086 3.43 31 138 30 0002A0QWO1 1693 -0.97 32 138 31 0002A0QW01 1749 -0.34 33 138 32 0002A0QWO1 1751 -0.32 34 138 33 0002A0QW01 1651 -1.44 35 138 34 0002A0QW01 1574 -2.30 36 138 35 0002A0QW01 1662 -1.31 0:\\PROCSTIN,$URVWINALAPA REVislON O A - 34 M rch 2.1995

l APPENDIX A FSV FINAL SURVEY REPORT SURFACE AND STRUCTURE DATA - REPOWER AREA Table A-26 (Continued) Evaporative Cooler Building, East & South Walls Below 2 Meters (Gamma Exposure Rate Measurements) Download W Saumple Hie Sesspie Sesaple Semiple Net Row .Namnber Nusnber Iac=tia= Code Counts pR/hr 37. 138 36 - 0002A0QW01 1594- -2.07 .i 38 138 37-0002A0QWOI 1706 0.82 l -39 138-38 0002A0QW01 1787-0.09. .{ 40 138 39-0002A0QW01 1703 -0.85 ] 41 138 40 0002A0QW01 1613 -1.86 42 138 41 0002A0QW01 1678 -1.13 1 43 -138 42 0002A0QW01 1729- -0.56 l 44 138 43 0002A0QW01 1724 -0.62. .[ 45 138 44 0002A0QW01 1569 -2.35 46 138 -45 0002A0QW01 1778. -0.01 47 138 46 0002A0QW01 1706 -0.82 { 48 138 47 0002A0QWOI 1832 .0.59 49-138 48 0002A0QW01 1750 -0.33 50 138 49 0002A0QWO1 2002 2.49 SI 138 50 0002A0QW01 - 1495 -3.18 52 138 51 0002A0QW01 1681 -1.10 .53 138 52 0002A0QWOI 1680 -1.11 54 138 53 0002A0QW01 1646 -1.49 55 138 54 0002A0QW01 1581 -2.22 56 138 55 0002A0QW01 1737 -0.47 57 138 56 0002A0QW01 1744 -0.39 58 138 57 0002A0QW01 1707 -0.81 { 59 138 58 0002A0QWO! 1793 0.15 l 60 138 59 0002A0QWO1' 1999 2.46 j i i { i G:\\PROCSiFIN,SURV\\MNAL.APA REVISION O i A - 35 March 2, i995

i APPENDIX D FSV FINAL SURVEY REPORT OPEN LAND AREA DATA REPOWER AREA APPENDIX B REPOWER AREA SURVEY DATA OPEN LAND AREAS i f 0:WROCSTIN,SURVWINAL.APB REVISION O B-1 umh 2 iws

.m - =-. < APPENDIX D FSV FINAL SURVEY REPORT OPEN LAND AREA DATA - REPOWER AREA - ln i i APPENDIX B t Rg... Area Survey Data - Open Land Areas l The following tables present the data for each measurment and sample perfonned on survey units - for open land areas within the repower. area. The data, downloaded from field instruments _and sample analysis results acquired from laboratory meamrements, was input into a computer database ' for statistical evaluation, report preparation and archival. l

I Mgure B-1 One Meter Above General Area Soil Sample Locations (Gamma Exposure Rate Measurements) i i

Download Legged Sample - Mie Semple Sample Samspie Net j Row Nussber Namnber Location Code Counts pR/br j 1 112 0 0002FOU141 1945 -3.15 ] 2 112 1 0002FOUIA2 2193 -0.37 3 112 2 0002FOULO3 2261 0.39 4 112 3 0002FOUIA4 2291 0.72 5 112 4 0002FOULA5 2164 -0.70 6 112 5 0002FOULA6 2060 1.86 7 112 6 0002FOUIA7 2091 -1.51 8 112 7 0002FOUIA8 2096 -1.46 9 112 8 0002FOUIA9 2214 -0.14 10 112 9-0002 FOUL 10 2247 0.23 11 112 10 0002FOULil 2124 -1.14 12 112 11 0002 FOUL 12 2070 -1.75 13 112 12 0002 FOUL 13 2089 -1.54 34 112 13 0002 FOUL 14 1797: -4.80 15 112 14 0002 FOUL 15 2281 0.61 16 112 15 0002FOULl6 2083 -1.60 17 112 16 0002 FOUL 17 2302 0.85 18 112 17 0002 FOUL 18 2155 -0.80-19 112 18 0002 FOUL 19 2013 -2.39 20 112 19 0002 FOUL 20 1970 -2.87 2I I12 20 0002 FOUL 21 2283 0.63 22 112 21 0002 FOUL 22 2437 2.36 - 23 113 0 0002 FOUL 23 2287 0.68 24 112 22 0002 FOUL 24 2163 -0.71 ) oAPROCSWIN,SURVWINAL.APB REVISION O B-2 warch 2. i995

APPENDIX D FSV FINAL SURVEY REPORT OPEN LAND AREA DATA REPOWER AREA Figure B-1 (Continued) [ One Meter Above General Area Soil Sample Imations (Gamma Exposure Rate Measurements) Download Logged Sample File Sample Sample Sample . Net Row Number Number Location Code Counts pR/br 25-112 23 0002 FOUL 25 1985 -2.70 26 112 24 0002 FOUL 26 2265 0.43 27 112-25 0002 FOUL 27 2451 2.51 28 112 26 0002 FOUL 28 2139 -0.98 29 112 27 0002 FOUL 29 2099 1.42 30 112 28 0002 FOUL 30 2089 -1.54 - 31 112 29 0002 FOUL 31 2043 -2.05 32 112 30 0002 FOUL 32 2105 -1.36 33 112 31 0002 FOUL 33 2102 -1.39 34 112 32 0002 FOUL 34 2191 -0.40 I 35 112 33 052 FOUL 35 2185 -0.46 a m i i 1 1 1 GAPROCS\\ FIN,5URV\\ FINAL.APB REVISION O B-3 March 2.1995 i

P APPENDIX B' FSV FINAL SURVEY REPORT ~ OPEN LAND AREA DATA - . REPOWER AREA ' Table B-2 One Meter above Inntian of I=h Field Soil Samples (Ganuna Exposure Rate Measwa) i o

• =d lessed Sample Mle.

Sample Sample Sangde Net - Row Number Number IAcetion Code Counts pR/hr 1 1-139 0 00021-0V1hl 2288 0.55 2 139 1 0002F0VIA2 2250 0.13 l 3 139 2 0002F0VIA3 2253 0.16 4 139 3 0002F0VLO4 2181 -0.64 ) 5 139 4 0002F0Vih5 2220 -0.20 6 139 5 0002F0V146 2237 -0.02 7 139 6 0002F0V147 2077 -1.79 I 8 139 7 0002NVLD8 2126 -1.25 -l 9 139 8 0002!'0ViA9 2598 4.00 I 10 139 9 0002F0VL10 2556 3.53 11 09 10 0002F0VLil 2615 4.19 } 12 559 11 0002F0VL12 2667 4.77 t l !i I i f I' a ? P i GAPROCS'EIN,SURvflNALAPB REVISION O l B-4 umn 2. iws ---w.,

APPENDIX B FSV FINAL SURVEY REPORT uOPEN LAND AREA DATA REPOWER AREA I Table B-3 1 Surfam Soil Samples (Radionuclide Analysis of Soils) RC Sesspie QC Seanple Cs-137 Cs-137 Sesspie l Semiple Semaple Activky Activity Cdtical Level MDA . Net Activity -{ Row Namnber Imadam Code (pCl/g) (pCi/g) . (pCi/ ) (pCi/s) (pCilg) { 8 l 28.023 0002FQUL01. 0.00 0.04 0.09 0.00 2 28.024 0002 FOUL 01 0.00 0.04 0.08 0.00 3 28.025 0002FOU142 0.00 0.04-0.09 0.00 1 4 28.026 0002FOUIA3 0.00 0.04 0.09 0.00 l 5 28.027 0002FOUlh4 0.00 0.05 0.09 0.00 I 6 28.028 0002FOULD5 0.00' O.04 0.09 0.00 l 7 28.029 0002FOULD6 0.00. 0.04 0.08 0.00 l 8 28.030 0002FOUIA7 0.00 0.03 0.07 0.00 l f 9 28.031 0002FOU148 0.08 0.03 0.07 0.00 10 28.032 0002FOULD9 0.00 0.04 0.08 0.00 I 11 28.033 0002 FOUL 10 0.00 0.04 0.09 0.00 e 12 28.034 0002FOULil 0.00 0.04 0.08 0.00 .) l 13 28.035 0002 FOUL 12 0.00 0.04 0.08 0.00 14 28.036 0002 FOUL 13 0.00 0.04 0.08 < 0.00 i \\ 15 28.037 0002FOULl4 0.00 0.04 0.08 0.00 16 28.038 0002 FOUL 15 0.00 0.04 0.09 0.00 .l 17 28.039 0002FOULl6 0.00 0.04 0.09 0.00 l 18 28.040 0002FOULl7 0.00 0.04 0.09 0.00 19 28.041 0002 FOUL 18 -0.00 0.04 0.09 0.00 i 20 28.042 0002 FOUL 19 0.00 0.04 0.09 0.00 21 28.043 0002 FOUL 20 0.00 0.04 0.08 0.00 i l 22 28.044 0002 FOUL 21 0.00 0.04 0.08 0.00 23 28.045 0002FQUL21 0.06 0.03 0.07 0.00 l 24 28.046 0002 FOUL 22 0.00 0.04 0.09 0.00 l 25 28.047 0002 FOUL 23 0.00 0.04 0.08 0.00 i 26 28.048 0002 FOUL.24 0.00 0.04 0.09 0.00 27 28.049 0002 FOUL 25 0.00 0.04 0.08 0.00 28 28.050 0002 FOUL 26 0.06 0.04 0.09 0.00 i 29 28.051 0002 FOUL 27 0.00 0.05 0.10 0.00 i l 30 28.052 0002 FOUL 28 0.11 0.03 0.06 0.00 31 28.053 0002 FOUL 29 0.06 0.03 0.06 0.00 l 32 28.054 0002 FOUL 30 0.03 0.03 0.06 0.00 l 33 28.055 0002 FOUL 31 0.00 0.04 0.08 0.00 l 34 28.056 0002 FOUL 32 0.00 0.04 0.09 0.00 j 35 28.057 0002 FOUL 33 0.00 0.04 0.09 0.00 36 28.058 0002 FOUL 34 0.00 0.05 0.10 0.00 G:\\ PROC 5iFIN,SURV\\ FINAL.APB REVISION 0 B-5 u m n2.1995 i

APPENDIX B FSV FINAL SURVEY REPORT OPEN LAND AREA DATA REPOWER AREA Table B-3 (Conitinued) Surface Soil Samples (Radionuclide Analysis of Soils) RC Sample QC Sample Cs-137 Cs-137 Sample Row Sample Sample Activity Activity C-it%I Level MDA Net Activity Number Location Code (pC1/g) (pCl/g). _ _';.Cilg) (pCi/g) (pCi/g) 37 28.059 0002F0UL35 0.00 0.04 0.08 0.00 L l i l 0;\\PROCS\\ FIN SURVWINAL.APB REVISION 0 B-6 umn2.ms

APPENDIX B FSV FINAL SURVEY REPORT ) OPEN LAND AREA DATA REPOWER AREA Table B-4 Sub-Surface Soils at Leach Field (Radionuclide Analysis of Soils) l Sample RC Sample QC Sample Cs-137 Cs-137 Sample Sample Activity Activity Critical Level MDA Net Activity Row l Number Location Code (pCilg) (pCi/g) (pCi/g) (pCi/g) (pCilg) 1 28.126 0002F0VM1 0.00 0.05 0.10 0.00 2 28.127 0002FQVMI 0.00 0.05 0.10 0.00 3 28.128 0002F0V M2 0.00 0.05 0.09 0.00 4 28.129 0002F0VLO3 0.00 0.05 0.10 0.00 5 28.130 0002F0V M4 0.00 0.05 0.10 0.00 6 28.131 0002F0VMS 0.00 0.04 0.09 0.00 7 28.132 0002F0VI.D6 0.00 0.05 0.10 0.00 8 28.133 000210VI.D7 0.00 0.05 0.10 0.00 9 28.134 0002FQVLO7 0.00 0.05 0.10 0.00 10 28.135 0002F0VM8 0.00 0.04 0.08 0.00 11 28.136 0002F0VLO9 0.00 0.05 0.10 0.00 l 12 28.137 0002FQVLO9 0.00 0.05 0.10 0.00 13 28.138 0002F0VL10 0.00 0.05 0.10 0.00 14 28.139 0002F0VLil 0.00 0.06 0.12 0.00 15 28.140 0002F0VL12 0.00 0.05 0.10 0.00 l I GAPROCS'f!N,SURV\\FINALAPB REVISION O B-7 u.rch :.i995

APPENDIX B FSV FINAL SURVEY REPORT OPEN LAND AREA DATA REPOWER AREA Table B-5 Septic System Upstream of Tank I (Radionuclide Analysis of Water) RC Sample Cs-137 Cs-137 Sample j Sample Sample Activity QC Sample Critical Level MDA Net Activity Row Number Location Code (pCl/ml) (pCI/ml) (pCi/ml) (pCl/ml) (pCl/ml) 1 4.001 00?2FQWH04 0.00 0.01 0.01 0.00 2 4.002 0002F0WH04 0.00 0.01 0.01 0.00 3 4.003 0002F0WH05 0.00 0.01 C.01 0.00 4 4.004 - 0002FQWH05 0.00 0.01 0.01 0.00 5 4.005 0002F0WH06 0.00 0.01 0.01 0.00 6 4.006 0002FQWH06 0.00 0.01 0.01 0.00 i 7 4.022 0002F0WH07 0.00 0.01 0.01 0.00 8 4.023 0002FQWH07 0.00 0.01 0.01 0.00 9 4.024 0002F0WH08 0.00 0.01 0.02 0.00 10 4.025 0002FQWH08 0.00 0.01 0.01 0.00 i 11 4.026 0002F0WH09 0.00 0.01 0.01 0.00 j 12 4.027 0002FQWH09 0.00 0.01 0.02 0.00 1 i i OSPROCSTIN,$URVWINAL.APB REVISION O B-8 March 2. i995

l APPENDIX D FSV FINAL SURVEY REPORT j

OPEN LAND AREA DATA REPOWER AREA J

i Table B-6 l M-h -Q Wells j (Radionuclide Analysis of Water) RC Sample Cs-137 Cs-137 Sample I 4 Seanple Sample Activity QC Sample Critical Level MDA-Net Activity-l Row Nassber r-eaa= Code (pCl/ml) (pCi/ml) (pci/ml) - (pCi/ml) (pcilml) l 1 4.007 0002FQWH01 0.00 0.02; - 0.05 - 0.00-2 4.008 0002F0WH01 0.00 0.02 0.05 0.00 j 4.009- - 0002FQWH02 0.00 0.02 -0.05 0.00 i 4 4.010 - 0002F0WH02 0.00 0.02 ' O.05 0.00 5 4.011 0002FQWH03 - 0.00 0.03 0.06-0.00 6 4.012 0002F0WH03 0.00 0.02 0.05 0.00 f 7 4.028 0002FQWH10 0.00 0.02-0.05 0.00 l 8 4.029 0002F0WH10 0.00 0.02 0.05 0.00 i t Table B-7 Sedirnent front Valve Pit RC _ Sample Cs-137 Cs-137 Sample l Sample Sample Activity QC Sample Critical Levd MDA Net Activity l Row Number lacation Code (pCi/mi) (pCl/ml) (pCi/ml) (pCl/ml) (pCl/ml) [ t 4.013 0002A0QS01 0-N/A 0.02 0.04 0 I l I l l i l l I i l t l 1 i G:\\PROCS71N,SURV\\FINALAPB REVISION 0 B-9 umn 2. Iws

)

1 P APPENDIX B FSV FINAL SURVEY REPORT OPEN LAND AREA DATA' REPOWER AREA Table B4 Monitoring Wells Tritium RC Sample. QC Sample Sample Sample Activity Activity. Critical Levd. Sample MDA Net Activity Row Number I h Code. ' (pCl/ml) (pCl/ml) (pCl/ml) .(pCi/ml) (pCi/ent) 1 4.008 0002F0WH01 0.89 0.83 1.72 - 0.28 2 4.007. 0002FQWH01 0.78 0.83 1.72: 0.17 3 4.010 0002F0WH02 0.80 0.83 1.72 0.19 I 4 4.009 0002f-QWH02 0.75 0.83 - 1,72 - O.14 5 4.012 0002F0WH03 0.59 0.83 1.72 0.00 6 4.011 0002FQWH03 0.71 0.83 1.72 0.10 7 4.029 0002F0WH10 0.36 0.85 1.76 0.00 8 4.028 0002FQWH10 0.14 0.85 1.76 - 0.00 t Table B-9 Septic Tank Inlet Tritinen 4 I RC Sample QC Sample Sample Sample Sample Activity . Activity Critical Levd MDA Net Activity i Row Number Iameia= Code (pCi/ml) (pCl/mi) (pCl/ml) (pCi/ml) (pCl/mi) l 1 4.002 .0002F0WH04 U.41 0.35 0.71 .0.00 l l 2 4.001 0002PQWH04 - 0.29 0.35 0.71 0.00 3 4.003 0002F0WH05 0.12 0.35 0.71 0.00 { 4 4.004 0002FQWH05 0.27 0.35 0.71 0.00 i 5 4.005 0002F0WH06 0.12 0.35 0.71 0.00 1 6 4.006 0002FQWH06 0.14 0.35 0.71 0.00 l 1 4 I ) i i f i l 4 i 1 GAPROCSTIN,5URVWINALAPB REVISION 0 B - 10 u rth 2.1995

APPENDIX C FSV FINAL SURVEY REPORT OACKGROUND DATA REPOWER AREA + t i i APPENDIX C BACKGROUND DATA i I l l 0:\\PROCS\\ FIN,5URV\\FINALAPC REVISION O l C-1 u,tb2.1995

APPENDIX C FSV FINAL SURVEY REPORT ~ CACKGROUND DATA REPOWER AREA APPENDIX C Background Data The following tables present the data for each measurment and sample.made to determine background radiation levels and radionuclide concentrations from naturally occurring radioactivic materials in the repower area for data from field instmments and sample analysis. l Table C-1 Background Determination Principal Gamma Emitters - Surface Soil Samples

• RC Sample QC Sample Cs-137 Cs-137 Sart.ple Sample Activity Activity Critical Level MDA Row Number Location Code (pCl/g)

(pCilg) (pCi/g) (pCl/g) 1 28.001 0001FQULO1 0.09 0.04 0.09 2 28.002 0001F0UL01 0.00 0.05 0.11 3 28.005 0001FOULO2 0.00 0.06 0.12 4 28.007 0001FOUlh3 0.13 0.04 0.08 ) 5 28.009 0001FOUIA5 0.10 0.03 0.07 4 6 23.010 0001FOUIA4 0.00 0.05 0.I1 7 28.013 000lFOUIA6 0.11 0.04 0.09 I 8 28.014 0001FOUIA7 0.11 0.03 0.07 9 28.016 0001FOU148 0.10 0.04 0.09 10 28.018 0001FOUIA9 0.12 0.04 0.09 11 28.019 0001 FOUL 10 0.08 0.04 0.09 12 28.082 0001FQULil 0.00 0.05 0.11 13 28.083 0001FOULl! 0.00 0.05 0.10 14 28.084 0001 FOUL 12 0.15 0.03 0.07 15 28.085 0001 FOUL 13 0.00 0.05 0.11 16 28.086 0001FOULl4 0.16 0.04 0.08 17 28.087 0001 FOUL 15 0.00 0.05 0.10 18 28.088 0001FOULl6 0.07 0.04 0.08 19 28.089 0001FOULl7 0.13 0.03 0.06 20 28.090 0001 FOUL 18 0.15 0.04 O.08 21 28.091 0001F00L19 0.00 0.05 0.10 ) 22 28.092 0001 FOUL 20 0.14 0.04 0.08 23 28.093 0001FQUL21 0.12 0.04 0.08 24 28.094 0001 FOUL 21 0.16 0.04 0.08 j 25 28.095 0001 FOUL 22 0.37 0.05 0.10 26 28.096 0001 FOUL 23 0.13 0.04 0.08 G.\\PROCS\\ FIN,SURV\\ FINAL.APC REVIS10N O C-2 warch 2.1995 i

APPENDIX C FSV FINAL SURVEY REPORT + BACKGROUND DATA REPOWER AREA Table C-1 (Continued) Background Determinarian i Principal G=nma Endtters - Surface Soil Samples * - i RC Sample QC Sample Co 137 Cs-137 Sample Sample Activity - Activity Cdtical Level - MDA j Row Nussber f w h Code (pCi/W (pCl/W (pci/W (pCi/W 27 28.097 0001 FOUL 24 0.24 0.04 0.08 l 28 28.098 0001 FOUL 25 0.13 0.04 0.09 l 29 28.099 0001 FOUL 26 0.10 0.04 0.08 l 30 28.100 0001 FOUL 27 0.22 0.04 0.08 31 28.101 0001 FOUL 28 0.09 0.04 0.08 32 28.102 0001 FOUL 29 0.28 0.04 0.09 i 33 28.103 0001 FOUL 30 0.26 0.04 0.08 34 28.104 000iFQUL31 0.00 0.06 0.12 ~ 35 28.105 000lFOUL31 0.00 0.07 0.15 j 36 28.106 0001 FOUL 32 0.14 0.06 0.12 37-28.107 0001 FOUL 33 0.12 0.05 0.11 38 28,108 0001 FOUL 34 0.21-0.04 0.08-L'g 28.109 0001 FOUL 35 . 0.14 0.06 0.13 40 28.110 000! FOUL 36 0.17 0.04 0.09 41 28.!!! 0001 FOUL 37 0.17 0.05 0.11 5 42 28.112 0001 FOUL 38 0.20 0.04 0.09 43 28.113 0001 FOUL 39 0.00 0.06 0.12 l 44 28,114 0001FOUIA0 0.14 0.05 0.10 45 MEAN: 0.12

• All samples west analyzed for principal samma emitters; however, only Cs-137 was identified as present.

' OAPROCSTIN,$URVWINAL.APC REVISION O C-3 Man 2. ms

a APPENDIX C . FSV FINAL SURVEY REPORT l ' BACKGROUND DATA REPOWER AREA' l ) Table C-2

I i

Background Determination -l Principal Gamma Emitters - Sub-surface Soil Samples * { l RC Sample QC Semple Cs-137 Cs 137 Sample Semple Row Nussbes. r ac=da= Code ~ Activky Activky Critical Level MDA: (pCilg) (pCi/ ) (pCi/s) (pCi/g) - 8 1-28.003-0001FQVIA1 0.15 ~ 0.03 0.07 l 2 28.004 0001F0 VIAL-0.15 0.05 0.10 3 28.006 0001F0VIA2 0.08 0.04 0.09 4 28.008 0001F0VIA5 0.04 0.05 0.10 5 28.011 0001F0VIA4 0.07 0.03 0.07 6 '28.012 0001F0VLO6 0.18 0.04 0.09 7 28.015 0001F0VIA7 0.00 0.05 O.I1 j 8 28.017 0001F0VIA8 0.10 0.04 0.09 9 28.020 0001F0VL10 0.09 0.04 0.09 10 28.021 0001F0VIA3 0.05 0.04 0.09 11 28.022 0001F0VIA9 0.16 0.04 0.08 -12 28.060 0001FQVL11 0.00 - 0.04 0.09 < f 'l 13 28.061 0001F0VLil 0.00 0.04 0.09 14 28.062 0001F0VL12 0.05 0.03 0.07 { 15 28.063 0001F0VL13 0.06 0.03 0.07 l 16 28.064 0001F0VL14 0.14 0.04 0.09 I 17 28.065 0001F0VL15 0.10 0.04 0.08 18 28.066 0001F0VL16 0.00 - 'O.04 'O.09 19 28.067 0001F0VLl7 0.10 0.03 0.07 ] 20 28.068 0001F0VL18 0.06 0.04 0.07 l 21 28.069 0001F0VL19 0.10 0.04 0.08 l 22 28.070 0001F0VL20 0.07 0.04 0.09 23 28.071 0001FQVL21 0.13 0.03 0.07 24 28.072 0001F0VL21 0.I8 0.04 u.08 25 28.073 0001F0VL22 0.00 0.05 - 0.10 I 26 28.074 0001F0VL23 0.15 0.04 0.08 27 28.075 0001F0VL24 0.15 0.04 0.07 - 28 28.076 0001F0VL25 0.00 0.04 0.10 i 29 28.077 000lF0VL26 0.10 0.04 0.09 30 28.078 0001F0VL27 0.17 0.04 0.08 31 28.079 0001F0VL18 0.16 0.04 0.09 32 28.080 0001F0VL29 0.00 0.05 0.10 33 28.081 0001F0VL30 0.00 0.05 0.10 34 28,115 0001FQVL31 0.13 0.04 0.10 35 28.116 0001F0VL31 0.18 0.04 0.09 36 28,117 0001F0VL32 0.16 0.04 0.09 4 . G:\\PROCSTIN,SURVWINALAPC REVISION O C-4 Mmh 2.1995

- APPENDIX C FSV FINAL SURVEY REPORT. CACKGROUND DATA REPOWER AREA Table C-2 (Continued) Background Determination Principal Gamma Emitters - Sub-surface Soil Sampleu* RC . Sample QC Sameple Cs-137 Cs-137 Sample Sanspie - Activity Activity . Critical Level MDA-l- Row Nunnber Location Code (pCl/g) (pCi/s) (pCl/s) (pCl/s) 37 28.118 0001F0VL33 0.24 0.05 0.10 38 28.119 0001F0VL34 0.17 0.04 0.08 39 28.120 0001F0VL35 G.00 0.05 0.10 40 28.121 0001F0VL36 0.15 0.04 0.08 41 28.122 0001F0VL37 0.15 0.04 0.08 42 28.123 0001F0VL38 0.32 0.04 0.09 43 28.124 0001F0VL39 0.00 0.06 0.13 l 44 28.125 0001F0VL40 0.14 0.05 0.10 45 MEAN: 0.10

• All samples were analyzed for principal gamma emitters; however, only Cs-137 was identified as -

] present. l ) l l G.\\PROLSEIN,5UREFINALAPC REVISION O C-5 w.,tn 2. iv95

3.,

] i APPENDIX C FSV FINAL SURVEY REPORT BACKGROUND DATA REPOWER AREA Table C-3 Background Determinati0n l Tritium - Off-Site Groundwater i i RC Critical Sample Sample Activity QC Sample Level - MDA Row Number Location Code (pCl/mi) ' (pCi/mi) (pCl/ml) (pCl/ml) 4.015 0001F0WH01 0.89 0.83 1.72 l .2-4.014 0001FQWH01 -0.38 0.83 1.72 3 4.017 000lF0WH02 0.28 0.83 1.72 .- 4 4.016 0001FQWH02 0.95. . 0.83. 1.72 5 4.019. 0001F0WH03 0.59 0.83 1.72 6 4.018 0001FQWH03 0.61 0.83 1.72 7 4.021 0001F0WH04 0.68 0.83 1.72 8 4.020 0001FQWH04 -0.31 0.83 1.72 I 9 MEAN: 0.61 l i Table C-4 Background Determination Principal Gamma Emitters - Off-Site Groundwater * - RC Cs 137 Cs-137 Sample Sample Activity QC Sample Cdtical Level MDA Row Number Location Code (pCl/ml) (pCl/ml) (pCl/ml) (pCl/ml) 1 4.014 0001FQWH01 0 0.01 0.02 ) 2 4.015 0001F0WH01 0 0.02 0.05 3 4.016 0001FQWH02. 0 0.02 - 0.05 4 4.017 0001F0WH02 0 0.02 0.05 ) 5 4.018 0001FQWH03 0 0.02 0.05 i 6 4.019 0001F0WH03 0 0.02 0.05 7 4.020 0001FQWH04 0 0.02 0.05 j 8 4.021 0001F0WH04 0 0.03 0.06 i 9 MEAN: 0 I

• All samples were analyzed far principal gamma emitters; however, only Cs-137 was identified as present.

G:\\PROCSTIN,SURV\\ FINAL APC REVISION 0 C-6 umn :, ms 7_ m .my w +iy~-, = -e--'&

APPENDIX C: FSV FINAL SURVEY REPORT BACKGROUND DATA REPOWER AREA-Table C-5' ) Background Determinatian Gamma Exp6sure Rates - Surface Sous ^- Download Legged Sample - File Sample Sample. Sample Net Row ~ Number 'Nunnber 1 4 Code Counts (pR/hr) f 1 116. 4 0001FOU1A1 2216 25.46 2 116 - 6 0001FOUIA2 2161-24.83 3 116. 7 0001FOU143 2174 24.97 4 116 8 0001FOUIA4 - 2162 24.84 5 116 9 0001FOULDS 2084 23.94 6 116 10 0001FOULD6 2214 25.43 7 116 11 0001FOULO7 - 2125 24.41 8 116 12 0001FOUIA8 2216 25.46 I 9 116 13 0001FOULD9 2183 .25.08 10 !!6 14 0001 FOUL 10 2269 26.07 11 126 4 0001 FOUL 11 2367 27.19 l 12 126 5 0001 FOUL 12 2528 29.04 i 13 126 6 0001 FOUL 13 2472 28.40 l 14 126 7 0001 FOUL 14 2397 27.54 15 126 8 000lMUL15 2430 27.92 I 16 126 9 0001FOULl6 23 % 27.52 l 17 126 .10 000lPOULl7 2432 27.94 18 126 11 0001 FOUL 18 2438 28.01 19 126 12 0001 FOUL 19 2489 28.59 -l 20 126 13 0001 FOUL 20 2443 28.06 21 126 14 0001 FOUL 21 2022 23.23 22 126 15 0001 FOUL 22 1998 22.95 23 126 16 0001 FOUL 23 1983 22.78 1 24 126 17 0001 FOUL 24 2022 23.23 1 25 126 18 0001 FOUL 25 2076 23.85 26 126 19 000!FOUI.26 2116 24.31 27 126 20 0001 FOUL 27 2059 23.65 28 126 21 0001 FOUL 28 1%5 22.57 29 126 22 0001 FOUL 29 1%2 22.54 30 126 23 0001 FOUL 30 1936 22.24 31 126 24 0001 FOUL 31 2046 ?3.50 32 126 ?5 0001 FOUL 32 2057 23.63 33 126 ~56 0001 FOUL 33 2070 23.78 34 126 27 0001 FOUL 34 2025 23.26 35 126 28 0001 FOUL 35 1992 22.88 36 126 29 0001F00L36 2003 23.01 0:\\PROCSTIN,SURVTINALAPC REVISION 0 C-7 M.rch 2.1995

APPENDIX C FSV FINAL SURVEY REPORT BACKGROUND DATA REPOWER AREA Table C-5 (Continued) Background Determination Gamma Exposure Rates - Surface Soils Download Logged Sample Mle Sample Sample Sample Net Row Number Number Location Code Counts (pR/hr) 37 126 30 0001 FOUL 37 1998 22.95 38 126 31 0001 FOUL 38 2063 23.70 39 126 32 0001 FOUL 39 2096 24.08 40 126 33 0001 FOUL 40 2024 23.25 41 MEAN: 24,9 1 G;\\PROCS\\ FIN,5URV\\FINALAPC REVISION O C.8 March 2,1995

APPENDIX C FSV FINAL SURVEY REPORT QACKGROUND DATA REPOWER AREA Table C-6 i Background Determination Total Surface Activity - Concrete Surfaces Dowr.leed Net File Sample Sample Unshleided Activity Row Number Number Location Code (counts / detector) (dpm/100 cm2) 1 191 3 0001A1AF01 366 1107.3 2 191 4 0001A1AF01 435 1609.1 3 191 5 0001A1AF01 383 1230.9 4 191 6 0001AIAF01 403 1376.4 1 5 191 7 0001A1AF01 388 1267.3 6 191 8 0001A1AF01 392 12 %.4 7 191 9 0001AIAF01 354 1020.0 8 191 10 0001A1AF01 387 1260.0 9 191 11 0001A1AF01 405 1390.9 10 191 12 0001A1AF01 409 1420.0 11 191 13 0001A1AF01 372 1150.9 12 191 14 0001A1AF01 387 1260.0 13 191 15 0001AIAF01 369 1129.1 14 191 16 0001A1AF01 378 1194.5 15 191 17 0001A1AF01 393 1303.6 16 191 18 0001A1AF01 384 1238.2 17 191 19 0001A1AF01 345 954.5 18 191 20 0001A1AF01 374 1165.5 19 191 21 0001AIAF01 359 1056.4 20 191 22 0001A1AF01 383 1230.9 21 191 23 0001AIAF01 381 1216.4 22 191 24 0001A1AF01 358 1049.1 23 191 25 0001AIAF01 370 1136.4 24 191 26 0001AIAF01 368 1121.8 25 191 27 0001AIAF01 369 1129.1 26 191 28 0001AIAF01 408 1412.7 27 191 29 0001A1AF01 376 1180.0 28 191' 30 0001AIAF01 362 1078.2 29 191 31 0001AIAF01 403 1376.4 30 191 32 0001A1AF01 367 1114.5 31 MEAN: 1215.9 G;'PROCSWIN,5URVWINALAPC REVISION 0 C-9 u rth 2.1995

APPENDIX C FSV FINAL SURVEY REPORT BACKGROUND DATA REPOWER AREA Table C-7 Background Determination Total Surface Activity - Concrete Surfaces ~ Download Net File Sample Sample Unshielded Activity Row Number Number Location Code (counts / detector) (dpm/100 cm2) i 165 3 0001A1AF02 423 1187.9 2 165 4 0001A1AF02 430 1241.3 3 165 5 0001A1AF02 383 883.2 4 165 6 0001A1AF02 419 1157.5 5 165 7 0001A1AF02 404 1043.2 6 165 8 0001A1AF02 405 1050.8 7 165 9 0001AIAF02 421 1172.7 8 165 10 0001A1AF02 397 989.8 9 I65 11 0001A1AF02 362 723.2 10 165 12 0001A1AF02 394 %7.0 11 165 13 0001AIAF02 387 913.7 12 165 14 0001A1AF02 408 1073.7 13 165 15 0001AIAF02 448 1378.4 14 165 16 0001AIAF02 408 1073.7 15 165 17 0001A1AF02 421 1172.7 16 165 18 0001A1AF02 436 1287.0 1 l 17 165 19 0001A1AF02 418 1149.8 18 165 20 0001A1AF02 383 883.2 19 165 21 0001AIAF02 441 1325.1 20 165 22 0001A1AF02 407 1066.0 21 165 23 0001A1AF02 435 1279.4 22 165 24 0001A1AF02 385 898.4 23 165 25 0001A1AF02 457 1447.0 24 165 26 0001A1AF02 406 1058.4 25 165 27 0001A1AF02 408 1073.7 26 165 28 0001A1AF02 408 1073.7 27 165 29 0001A1AF02 421 !!72.7 28 165 30 0001A1AF02 404 1043.2 29 165 31 0001A1AF02 437 1294.6 30 165 32 0001AIAF02 428 1226.0 ] 31 MEAN: 1110.2 G:TROCSTIN,5URV71NAL.APC REVISION 0 C - 10 u.rch.i995 1

__m l i APPENDIX C FSV FINAL SURVEY REPORTf

BACKGROUND DATA.

-REPOWER AREA L i T3Be C-8 j Background Determinatian.. Total Surface Activity - Concrete' Surfaces ] Download Net i , File Sample Snaple. Um Activity 1 Row Nienber Namnber Location Code . (counts /datector) (dpsm/100 cm ) i 8 i 190 39 0001A1AF03 .357-922.4 2 190 40 0001A1AF03 -358 929.7 l 3 190 41 0001A1 AF03 - 367 995.2 .f 4 190 42 0001A1AF03 396 1206.1 5 190 43 0001A1AF03 395 1198.8. l 6-190 44 0001A1AF03 345 835.2 l 7 190 45 0001AIAF03 .369 1009.7.- l 8 190 46 0001A1AF03 386 '1133.3 - 9 190 47 0001A1AF03 347 849.7 I 10 190 48 0001A1AF03 356 915.2 ) f 11 190 49 0001A1AF03 395 1198.8 12 190 50 0001A1AF03 364 973.3 !3 190 51 0001A1AF03 375-1053.3 14 190 52 0001A1AF03 -352 886.1 15 190 $3 0001A1AF03 395 1198.8 16 190 54 0001A1AF03 360 944.2 17 190 55 0001AIAF03 346 842.4 { l8 190 56 0001A1AP03 -398 1220.6 19 190 57 0001A1AF03 346. 842.4. 20 190 58 0001A1AF03: 420 1380.6 21 190 59 0001A1AF03 418 1366.1 22 190 60 0001A1AF03 352 886.1 23 190 61 0001AIAF03 400 '1235.2 i 24 190 62 0001A1AF03 374 1046.1 i 25 190 63 0001A1AF03 -423 1402.4 l 26 190 64 0001A1AF03 376 1060.6 27 190 65 0001A1AF03 378 1075.2 28 190 66 0001A1AF03 351 878.8 29 190 67 0001AIAF03 430 1453.3 ) 30 190 68 0001A1AF03 377 1067.9 ) 31 MEAN: 1066.9 G:\\PROCSTIN,5URV\\FINALAPC REVISION 0 C - 11 March 2.1995

APPENDIX C ~ FSV FINAL SURVEY-REPORT . DACKGROUND DATA REPOWER AREA Table C-9 Background Determination ' Gamma Exposure Rate - Concrete Surfaces Download Legged Sample File. Sample Sample Sample .Nd Row Number Number I w aa= Code - Commes. (pR/hr) 1 123 64 - 0001A0AF01 1787 20.53 2 123 65 0001A0AP01 1742-20.01 3 123 66 0001 A0AF01 - 1697 19.49 f 4 123 67 0001A0AF01 1625 18.67 I 5 123 68 - 0001A0AF01 1738 19.97 I 6 123 69 0001A0AF01 1721 19.77 1 7 123 70 0001A0AP01 1661 19.08 8 123 71 0001A0AF01 1670 19.18 l 9 123 72 0001A0AFD1 1743 20.02 I 10 123 73 0001A0AP01 1729 19.86 11 123 74 0001A0AF01 1731 19.89 4 12 123 75-0001A0AP01 1662-19.09 l I 13 123 76 0001A0AP01 1699 19.52 14 123 77 0001A0AF01 1597 18.35 15 123 78 0001A0AP01 1667 19.15 16 123 79 0001ADAP01 1655 19.01 l 17 123 80 0001A0AP01 1739 19.98 l 18 123 81 0001A0AF01 1655 19.01 i 19 123 82 0001A0AP01 1624 18.66 20 123 83 0001A0AF01 1700 19.53 - 21 -123 84 0001A0AP01 1786 20.52 22 123 85 0001A0APO1 1610 18.50 23 123 86 0001A0AP01 1628 18.70 24 123 87 0001A0AP01 1707 19.61 25 123 88 0001A0AF01 1745 20.05 26 123 89 0001A0AP01 1690 19.41 27 123 90 0001A0AF01 1725 19.82 28 123 91 0001A0AF01 1712 19.67 29 123 92 0001A0AF01 1677 19.26 30 123 93 0001A0AF01 1673 19.22 31 123 94 0001A0AF01 1720 19.76 32 123 95 0001A0AF01 1693 19.45 l 33 MEAN: 19.5 I G.\\PROCS\\ FIN _SURV\\FINALAPC REVISION O C - 12 umb 2. iws .....w g

1 i APPENDIX C - FSV FINAL SURVEY REPORT-l L GACKGROUND DATA REPOWER AREA' Table C-10 Background Determination Gm=== Exposure Rate - Concrete Surfaces l l Dowidood Log 8ed Seenple l ' File Sesspie Sesspie Semaple Net.. i Row Nussber Number I m mala = Code - Commes (pR/hr) I -123 4 0001A0AF02 1768 20.31 2-123 5 0001A0AF02 1741 20.00 l i 3 123 6 0001A0AP02 1713 19.68 i 4 123 7 0001A0AF02 1797 20.64 l l 5 123 8 0001A0AF02 1994 22.91 6 123 9 0001A0AF02 1923 22.09 7 123 10 0001A0AF02 1779 20.44 8 123 11 0001A0AF02 1749 20.09 9 -123 12 0001A0AF02 1921 22.07 10 123-13 0001A0AF02 1859 21.36 - .j 11 123 14 0001A0AF02 1823 20.94 12 123 15 0001A0AF02 1816 20.86 13 123 16 0001A0AF02 1899 21.82 14 123 17 0001A0AF02 1962 22.54 ' l 15 123 18 0001A0AF02 1917 22.02 { 16 123 19 0001A0AF02 1853 21.29 i.: 17 123 20 0001 A0AF02 - 1940 22.29 1 l 18 123 21 0001A0AF02 1960 22.52 19 123 22 0001A04F02 1847 21.22 - f 20 123 23 0001A5.F02 1905 21.88 21 123 24 0001A0AF02 1828 21.00 22 123 25 0001A0AF02 1952 22.42 l 23 123 26 0001A0AF02 1892 21.73 i 24 123 27 0001A0AM2 1844 21.18 25 123 28 0001A0AF02 1903 21.86 l 26 123 29 0001A0AF02 2000 22.98 i 27 123 30 0001A0AF02 1907 21.91 l 28 122 31 0001A0AF02 1947 22.37 29 123 32 0001A0AF02 1857 21.33 30 123 33 0001A0AF02 1985 22.80 .} 31 MEAN: 21.6 i l GAPROCSWIN_SURYTINALAPC REVISION O C - 13 u ien2.i995 i

1 APPENDIX C FSV FINAL SURVEY REPORT. BACKGROUND DATA ' ~ REPOWER AREA Table C-11 Background Detersninntian j Ganuna Exposure Rate - Concrete Surfaces \\ 1 Downloeu Imgged Sample Flie Sample Sesspie Sample Net i Row Number Namiber inr.esa= Code Commes (pR/hr) 1 123 34 0001A0AF03 1653 18.99 - 2 123 35 0001A0AF03 1658-19.05 5 3 123 36 0001A0AF03 1649 18.94 4 123 37 0001 A0AF03 - 1691 19.43 5 123 38 0001A0AF03 1668 19.16 6 123 39 0001A0AF03 1711 '19.66 j 7 123 40 0001A0AF03 1674 19.23 8 123 41 0001A0AF03 1636 18.79 9 123 42 0001A0AF03 1679 19.29 l 10 123 - 43 0001A0AF03 1755 20.16 5 11 123 44 0001A0AF03 1671 19.20 12 123 45 0001A0AF03 1688 19.39 l 13 123 46 0001A0AF03 1630 18.73 2 14 123 47 0001A0AF03 1693 19.45 f 15 123 49 0001A0AF03 1662 19.09 16 123 50 0001A0AF03 1645 18.90 l ) 17 123 51 0001A0AF03 1679 19.29 18 123 52 0001A0AF03 1741 20.00 19 123 53 0001A0AF03 1633 18.76 20 123 54 0001A0AF03 1658 19.05 j 21 123 ' 55 0001A0AF03 1693 19.45 22 123 56 0001A0AF03 1672 19.21 23 123 57 0001A0AF03 1601 18.39 24 123 58 0001A0AF03 1664 19.12 I 25 123 59 0001A0AF03 1614 18.54 26 123 60 0001A0AF03 1531 17.59 l 27" 123 61 0001A0AF03 1556 17.87 28 123 62 0001A0AF03 1509 17.34 29 123 63 0001A0AF03 1727 19.84 30 MEAN: 19.0 t GAPROCS\\ FIN,,5URV\\ FINAL.APC REVISION O C - 14 umn 2,1995

APPENDIX C FSV FINAL SURVEY REPORT BACKGROUND DATA REPOWER AREA Table C-12 Background Determination 1 Gamma Exposure Rate - Sheet Metal Walls Over Asphalt Surface Download Logged Sample Hie Sample Sample Sample Net Row Number Number Location Code Counts (pR/hr) 1 123 0001A0QW01 1321 15.18 2 123 97 0001A0QW01 1219 14.00 3 123 98 0001A0QW01 1454 16.70 4 123 99 0001A0QW01 1373 15.77 5 123 100 0001A0QW01 1406 16.15 6 123 101 0001A0QW01 1322 15.19 7 123 102 0001A0QW01 1514 17.39 8 123 103 0001A0QW01 1425 16.37 9 123 104 0001A0QW01 1442 16.57 10 123 105 0001A0QW01 1449 16.65 11 123 106 0001A0QWO1 1395 16.03 12 123 107 0001A0QWO1 1430 16.43 13 123 108 0001A0QW01 1462 16.80 14 123 109 000lA0QW01 1414 16.24 15 123 110 0001A0QWO1 1439 16.53 16 123 111 0001A0QW01 1408 16.17 17 123 112 0001A0QW01 1298 14.91 18 123 113 0001A0QW01 1463 16.81 19 123 114 0001A0QW01 1387 15.93 20 123 115 0001A0QW01 1386 15.92 21 123 116 0001A0QW01 1356 15.58 22 123 117 0001A0QW01 1445 16.60 23 123 118 0001A0QW01 1277 14.67 24 123 119 0001A0QW01 1454 16.70 25 123 120 000lA0QW01 1447 16.62 26 123 121 0001A0QW01 1436 16.50 27 123 122 0001A0QW01 1369 15.73 28 123 123 0001A0QWO1 1384 15.90 29 123 124 0001A0QW01 1376 15.81 30 123 125 0001A0QW01 1283 14.74 31 MEAN: 16.0 OnPROCSTIN_SURVTINAL.APC REVISION 0 C - 15 umn 2. ms

-1! APPENDIX C - FSV FINAL SURVEY REPORT .l BACKGROUND DATA REPOWER AREA i l Table C-13 Background Deter =Immelan Ganana Exposure Rate - Sheet Metal Walls Over Gravel & Sand Surface Download Legged Sample 'Fue ' Sample Sample Seegde Net Row Number Noenber Im,=tia= Code Comets (pR/hr) '1 195 34 0001 A0QWO2 : 1463 16.60 [ 2 195 35 0001A0QT"02 1477 16.76 i 3 195 36 0001 A0QWO2 - 1404 15.93 t 4-195 37 0001A0QWO2 1491 16.91 I 5 195 38 0001A0QWO2 1427 16.19 6 195 39 0001A0QWO2 1461 16.57 7 195 40 0001A0QWO2 1546 17.54 8 195 41 0001A0QWO2 1484 16.84 - 9 195 42 0001A0QWO2 1399 15.87 . 10 195 43 0001A0QWO2 1480 16.79 11 195 44 0001A0QWO2 1514 17.18 I 12 195 45 0001A0QWO2 1460 16.56 13 195 46 0001A0QWO2 1383-15.69 14 .195 47 0001A0QWO2 1416 16.06 15 195 48 0001A0QWO2 1404 15.93 16 195 49 0001A0QWO2 1418 16.09 1 195 50 0001A0QWO2 1347 15.28-18 195 51 0001A0QWO2 1389 15.76 .j 19 195 52 0001A0QWO2 1378 15.63 20 195 53 0001A0QWO2 1388 15.75 21 195 54 0001A0QWO2 1386 15.72 22 195 55 0001A0QWO2 1372 15.56 23 195 56 0001A0QWO2 1416 16.06 f 24 195 57 . 0001 A0QWO2 1406 15.95 25 195 58 0001A0QWO2 1380 15.66 26 195 59 0001A0QWO2 1459 16.55 i 27 195 60 000iA0QWO2 1542 17.49 -l 28 195 61 0001A0QWO2 1485 16.85 I 29 195 62 0001A0QWO2 1414 16.04 30 195 63 0001A0QWO2 1439 16.32 i 31 1% 34 0001A0QWO2 1504 16.73 32 196 35 0001A0QWO2 1433 15.94 i 33 1% 36 0001A0QWO2 1469 16.34 34 196 37 0001A0QWO2 1443 16.05 35 196 38 0001A0QWO2 1458 16.22 36 1% 39 0001A0QWO2 1455 16.19 i 0:\\PROCS\\ FIN,5URV\\FI 'L.APC REVISION O C - 16 mech 2.1995

APPENDIX C FSV FINAL SURVEY REPORT DACKGROUND DATA REPOWER AREA Table C-13 (Continued) Background Determination Gamma Exposure Rate - Sheet Metal Walls Over Gravel & Sand Surface l Download Logged Sample Hie Sample Sample Sample Net Row Number Number Location Code Counts ydt/hr) 37 1% 40 0001A0QWO2 1413 15.72 38 1% 41 0001A0QWO2 15 % 17.75 39 1% 42 0001A0QWO2 1504 16.73 40 196 43 0001A0QWO2 1434 15.95 41 196 44 0001A0QWO2 1510 16.80 42 1% 45 0001A0QWO2 1500 16.69 43 1% 46 0001A0QWO2 1411 15.70 44 1% 47 0001A0QWO2 1491 16.59 45 1% 48 0001A0QWO2 1443 16.05 l 46 1% 49 0001A0QWO2 1437 15.99 i 47 1% 50 0001A0QWO2 1360 15.13 J 48 1% 51 0001A0QWO2 1396 15.53 49 196 52 0001A0QWO2 1492 16.60 50 1% 53 0001A0QWO2 1434 15,95 51 1% 54 0001A0QWO2 1440 16.02 52 1% 55 0001A0QWO2 1442 16.04 53 1% 56 0001A0QWO2 1487 16.54 54 1% 57 0001A0QWO2 1458 16.22 55 1% 58 0001A0QWO2 1471 16.36 56 1% $9 0001A0QWO2 1506 16.75 57 1% 60 0001A0QWO2 1500 16.69 58 1% 61 0001A0QWO2 1501 16.70 59 1% 62 0001A0QWO2 1414 15.73 60 1% 63 0001A0QWO2 1452 16.15 61 MEAN: 16.3 i l ) G:\\PROCSTIN,SURVTINALAPC REVISION 0 C - 17 warch 2. i995

c-. APPENDIX C i FSV FINAL SURVEY REPORT. ] BACKGROUND DATA REPOWER AREA i j Table C-14 I Background Deteranimation Gamuna Exposure Rate - Sheet Metal Walls Over Sandy Loast Surface Download IAgged SAABple -i Mie. Semiple Seneple Sasspie Net j Row Nussber Namsber I e Code Commes (pR/kr) ~ i i 195 64 0001A0QWO3 1634 18.54 2 195 65 0001A0QWO3 1579 17.91 3 195 66 0001A0QWO3 1676 19.01 4 195 67-0001A0QWO3 1694 19.22 5 195 68 0001A0QWO3 1666 18.90 6 195 69 0001A0QWO3 1681 19.07 7 195 70 0001A0QWO3 1673 18.98 8 195 71 0001A0QWO3 1702 19.31 i 9 195 72 0001A0QWO3 1757 19.92 l 10 195 73 0001A0QWO3 1696 19.24 - 11 195 74 0001A0QWO3 1767 20.05 -l 12 195 75 0001A0QWO3 1680 19.06 I j l 13 195 76 0001A0QWO3 1732' 19.65 14 195 77 0001A0QWO3 1831 20.77 -l 15-195 78 0001A0QWO3 1785 20.25 l 16 195 79 0001A0QWO3 1785 20.25 17 195 80 0001A0QWO3 1735 19.68 !8 195 81 0001A0QWO3 1809 20.52 [ 19 195 82 0001A0QWO3 1756' 19.92 i 20 195 83 0001A0QWO3 1780 20.19 21 195 84 0001A0QWO3 1827 20.73 22 195 85 0001A0QWO3 1824 20.69 ) 23-195 86 0001A0QWO3 1814-20.58 24 195 87 0001A0QWO3 1860 21.10 25 195 88 0001A0QWO3 1848 20.% l ) 26 195 89 0001A0QWO3 1833 20.79 27 195 90 0001A0QWO3 1812 20.56 28 195 91 0001A0QWO3 1757 19.93 29 195 92 0001A0QWO3 1776 20.15 30 195 93 0001A0QWO3 1801 20.43-31 1% 64 0001A0QWO3 1580 17.58 32 196 65 0001A0QWO3 1590 17.69 33 196 66 0001A0QWO3 1680 18.69 34 196 67 0001A0QWO3 1605 17.85 35 1% 68 0001A0QWO3 1598 17.78 36 196 69 0001A0QWO3 1610 17.91 GAPROCSTIN,SURYTINALAPC REVISION 0 C - 18 u u s 2. m s

F- -l APPENDIX C FSV FINAL SURVEY REPORT CACKGROUND DATA REPOWER AREA Table C-14 (Continued) Background Determinatlan Gaauna Exposure Rate - Sheet Metal Walls Over Sandy Loam Surface Downland IAgged Semaple Mle - Semaple Sample Sameple Net Row Nussber Number I h Code Counts (pR/hr) 37 196 70 0001 A0QWO3 - 1650 18.36 38 196 71 0001A0QWO3 1721. 19.14 39 1% 72 0001A0QWO3 1726-19.20 40 1% 73 0001A0QWO3 1684 18.73 41 196 74 0001A0QWO3 1671 18.59 42 1% 75 0001A0QWO3 1725 19,19 43 1% 76 0001A0QWO3 1673 18.61 44 1% 77 0001A0QWO3 1780 19.80 45 196 78 0001A0QWO3 1827 20.32 46 196 79 0001A0QWO3 1754 19.51 47 196 80 0001A0QWO3 1754 19.51 48 1% 81 0001A0QWO3 1813 20.17 49 1% 82 0001A0QWO3 1839 20.46 50 1% 83 0001A0QWO3 1857 20.66 1 51 1% 84 0001A0QWO3 1829 20.35 52 1% 85 0001A0QWO3 1833 20.39 53 1% 86-0001A0QWO3 1847 20.55 54 1% 87 0001A0QWO3 1786 19.87 55 196 88 0001A0QWO3 1715 19.08 56 1% 89 0001A0QWO3 1793 19.95 ) 57 1% 90 0001A0QWO3 1777 19.77 58 1% 91 0001A0QWO3 1806 20.09 59 1% -92 0001A0QWO3 1809 20.12 60 196 93 0001A0QWO3 1760 19.58 61 MEAN: 19.9 l i 0APROCSWIN_SURV\\ FINAL.APC REVISION 0 C - 19 umn 2.1995 ..}}