ML20134F435

Forwards Sections 1,2,6 & 8 from Survey Packages F0015, F0039 & F0126 & Sections 1,2 & 6 from Survey Package F0115 to Support on-site NRC Insp

ML20134F435
Person / Time
Site:	Fort Saint Vrain
Issue date:	10/30/1996
From:	Borst F PUBLIC SERVICE CO. OF COLORADO
To:	Weber M NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
References
P-96091, NUDOCS 9611050251
Download: ML20134F435 (523)

Text

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0 rubiic service-16805 WCR 191/2; Platteville, Colorado 80651

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October 30,1996 Fort St. Vrain P-96091 l U.S. Nuclear Regulatory Commission ATrN: Document Control Desk Washington, D.C. 20555 ATTN: Mr. Michael F. Weber, Chief Decommissioning and Regulatory Issues Branch i

Docket No. 50-267 4

SUBJECT:

Final Survey Report - Submittal of Information Requested To Support On-Site NRC Inspection

Dear Mr. Weber:

g As requested by Mr. David Fauver of the NRC Staff, Public Service Company of Colorado provides the following information:

1. A copy of Sections 1, 2, 6, and 8 from Survey Packages F0015, F0039, and F0126.

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2. A copy of Sections 1, 2, and 6 from Survey Package F0115, which is related to the elevated measurement result identified by ORISE during their inspection

conducted from September 30 through October 3,1996. This elevated measurement was originally believed to be part of Survey Package F0084, but was later determined ta actually be located in Survey Package F0115. A copy of Survey Package F0084 is also included for your information.

. The elevated measurement was Survey Measurement Location (SML) number 487 in F0115, which is approximately two feet above SML 775 in F0084, as discussed with the NRC and ORISE during a telephone conference on October 21,1996.

AIL /O h 9611050251 961030 PDR ADOCK 05000267 G PDR.

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P-96091 October 30,1996 Page 2 If you have any questions regarding this information, please contact Mr. M. H. Holmes  !

at (303) 620-1701. l 1

i j Sincerely, i haSci ' y Frederic J. rst 3 Decommissioning Program Director i

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FJB/SWC  !

j Enclosure i

cc: Regional Administrator, Region IV (w/o enclosure) 1 l

Mr. Robert M. Quillin, Director (w/o enclosure)  !

Radiation Control Division  !

Colorado Department of Public Health and Environment l

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, Mr. Eric Ablequist )

Oak Ridge Institute for Science and Education j l

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' .{6 ATTACIBIENT 6.3 *i: ,

SURVEY PACKAGE COVER SHEET .

Package Page i of'7 \

SURVEY PACKAGE PHASE 1 COMPLETION Generallnformation j

i Package 10 F0015 Building (s) Reactor Building Survey Area F0015 Elevation (ft) 4740 Survey Area Name Level 1 Steam / Water Dump Tank Rm Drawing # RX_1 Package Description Survey Area Description' Level 1 Steam / Water Dump Tank Rm Level 1, West Side - Steam / Water Dump Tank -

(T-2201) Room Surface Grid Requirements Suspect affected survey units are gridded using a 1X1 meter grid size. Survey measurement locations (SML) will be marked on survey maps and/or survey instructions to designate where measurements are to be collected. SMLs will be labeled on floor, wall, ceiling and equipment surfaces. Appropriately sized areas will be  ;

identified on overhead maps to designate where equipment measurements need to be collected. i Area Preparation 2

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Special Support Requirements Temporary lighting may be required in poorly illuminated areas. I Ladders may be needed to access overhead areas. '

Scaffolding may be required to access overhead areas.

Specific Safety Precautions '

Safety belts may be required when working in overhead areas above 2 meters. ,

Air monitoring tests shall be performed prior to entering confined spaces (e.g., sumps, tanks, etc.). I 6 #//N Isolation L 14- s e 4. c6aa.A.4.#f A l'lU////N isolation Controls Specified and Scheduled to .CommeSnNo tor l% r 2%=g'rryly use, i .% st at,'n t

a;c-'::::.- s's d storage hoebeen or moveme notifi that fanst l

SuY t ht hac kY$bfy?$ff?bk $h g ',#fic

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All access points to this area (s) shall be posted with a Levelfisoftfon e[ 3 3 y Finalconfguration of this area (s) is to be maintained. Authorization must be obtained pnor to the painting of surfaces, structuralrenovation and/or removalof components from this area (s).

ACCEL iw uii. aios M""' : ' Ope barfieracrosvihe4nter; anholabon-cont +el-postingstadAstep " g

.P9750. ,, .d ::e ' ~

$ # c ch*"9C ** $wC " ~ ' im ' lYa iiBWdTfeet-fask-pps; is cMeiififthis area usingsinsker or equivaiem Field Operations Coordinator: Date S U~b Notes The general area addressed tiy the survey package te 3 rnachine shop, hot service facihty. PCRV, etc.)

Scarrokhng. ladders, temp hghting. installatmn or a power supply, etc.

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, Conrmed space entry permits, etc. Interface with MK as necessary.

Isolatwin requirements in accordance wnh procedure r$v SC FRS-I-108. Tinal Survey isolation and Control Measures."

SC.FRS.102.3-5 M021100 FILENAME e AT63,RO FSLi ATT63 FDL

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ATTACIIMENT 6.3 (continued) )

SURVEY PACKAGE COVER SIIEET Package Page7. of "2.\

lPackageID F0015 l Building (s)

. l Elevation (ft)4740 l Drawing # RX_1 l Survey Area F0015 l Reactor Building

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Package Description Level 1 Steam / Water Dump Tank Rm  !

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SURVEY PACKAGE PHASE 1 COMPLETION The survey package instructions are prepared < m and reacy for implementation. Signed M Date: fi[/ 7h4 chnical Protects ervisor i

Signed.

/ Date: -Yxl%

Signed. Date: '

Fin il survey Operatio's n Supervisor SURVEY PACKAGE PHASE 2 COMPLETION The initial survey instructions have been implemented and the survey measurements collected t.nd reviewed for completeness in Signed IhI b -- Date: / k.  !

Field rations coor aior 8 '

accordance with the survey instructions.

Signed Date:

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Fin'aPSurvey Operatio'npupervisor Signed '/v7e ) b La4

" Radiologica En~gineer( g4'LOate: 9 9h SURVEY PACKAGE PHASE 3 COMPLETION

Survey measurements and samples 4 specified in the survey packago instructions j have been evaluated and any required investigation or replacement surveys have

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been identified and performed. Final data Signed: Date 7/9 Id Data Evaiuation Engineer satisfies survey acceptance enteria and no outstanding surveys are pending Release

((d.(4_jty- I fa record (s) for each survey unit are included in Signed- I .lE Date:

i this survey package. hnal survey Le Engineer SURVEY PACKAGE PHASE 4 COMPLETION This Final Survey Package is authorized for closure. All required reviews are S 9ned LL - Date' 3 - Il'N completed and the data analysis results Radiological Eng er meet acceptance entena.

Signed. Date:

Final Survey hd Engme'er l Signed h*C b yechnical Prejects Supervisor d Date:

Signed . .$lQ!L Project Radioison Prktion Manager Date: @ht #[

SC.FRS.102.3-5 M021100

FILENAME e AT63_R0 FSL i ATT63 FDL I

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A'ITACIIMENT 6.4 (PART 2)

SURVEY PACKAGE CORRECTION /CIIANGE IIISTORY 3

Package ID: FCC/I Package Page P of El M o V/<3/14 Survey Package Correction / Change Ilistory Initials /Date Change Description No. Initiator TPS FSLE FSOS j 1 General Remarks were added to Attachment 6.4, Part 1, to clarify exposure rate measurement Ad u/4 M/A u/A requirements. The surface areas on Attachment 6.4, Part I and Attachment 6.5, Part 2 were S/U/%

modified in order to clarify the basis for the prescribed number of exposure rate measurements.

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SC.FRS.102.4-6 M021100 4

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ATTACIIMENT 6.4 (PART 2)

SURVEY PACKAGE CORRECTION /CIIANGE IIISTORY Package ID: f 006 Package Page JA of Zl Survey Package Correction / Change IIistory i Initials /Date C ge Description i Initiator TPS FSLE FSOS This change is considered a minor technical change and covers the down grading of Isolation Controls for yMO ,

specific areas of the Reactor Building. Isolation Controls are being reduced from Level 3 to Level 2 in accordance with the directive issued by the PRPM by Memorandum dated August 8,1996, ' Modification c5J/164 q to Level 3 Isolation Controls..." This package has been modified to reflect the implementation of level

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SC.FRS.102.4-7 M021100

ATTACHMENT 6.4 (Part I)

INITIAL SURVEY PACKAGE DESIGN 4 Package 10 : F0015 Package Page I of 7-\

}"6 O n t 3/4 4 Starvey Medium Measurements 1 Survey Unit Description Type Classification Area m Survey Mediurn hiasian Area m SA ER in Situ Plc F0015AS001CZT01 Surfaces & Structures Non-suspect, affected 203 reactor butiding concrete - painted (intenor) 107 o 20 o o structure Building: Reactor Building conection #1 - genene matenal 96 15 o o o 4740 ft elevation -

Ceiling / Equipment / Walls Above 2 Meters  ; g

?Ej f _.S k <'. u ) U '70 Y- 7 -lg,

. i Survey Medium Number of ,

Measurements 1 Survey Unit Description Type Classi ic am Survey Medium Description Area m SA ER in Situ Plc F0015BZ0018ZT01 Surfaces a Structures Suspect, affected structure 64 cener 5 e s o o Building: Reactor Building p/A y 5/23 %

4740 ft elevation C k"*1' \

reactor building concrete - painted (intenor)

Pv4~o o Floors / Walls Below 2 Meters 6** P % e M d EI General Remarks 40)

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l e A Prepared by : p '

Z Date: 9 b hA --

CD SC.FRS.102 4 5 M021100

ATTACIIMENT 6.4 (Part 1)

INITIAL SURVEY PACKAGE DESIGN 4" Package ID : F0015 Package Page A of P.1 Ptb 0 4143 /%

i Survey Medium Number of Measurements 1 Survey Unit Description Type Classification Survey Medium Description SA ER in Situ Plc F0015BZ001BZT01 surfaces a structures suspect.affected structure concrete - bare (interior) 6 0 0 0 surfac. A,.a su=nM Area M reactor butiding Concrete - painted (interior)

Building: Reactor Building 4740 ft elevation 72 8 0 0 Total surface area 64 Floors / Walls Below 2 Meters noor area 22 Wan area < 2 m 42 -

General Remarks 1 Desian Considerations Was area > 2 m N/A Exposure rate measurements wiX be collected at 1 meter from

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accessible floor and lower wa0 surfaces and at a minimum spacing of 1 measurement for each 4m'. In cases where the floor surface meets the war surface. the floor measurement win satisfy both the floor and the waQ measurement requirements for that locatiort M SC.FRS.102.4-6 M021100 C) FLENAME = ATE 4,1RI.RSL / ATT64_1.ROL

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ATTACllMENT 6.5 (PART 1)

(GENERAL) SURVEY INSTRUCTIONS  !

GeneralInformation Package Page b of M -

Package ID : F0015 Survey Area Name : Level 1 Steam / Water Dump Tank Rm Instructions Survey instruction Reason: Initial Final Release l

i Survey Unit

Description:

Ceiling /EquipmentAValls Above 2 Unit Code (L1,L2,L3) : F0015, AS001, CZT01 i Meters Survey Tvoe Generallnstructions Total Activity Select measurement locations from those surfaces of highest contamination potential, ensuring that surfaces surrounding penetrations in floors, walls, &/or ceilings are included. l Scan at least 1 m2 (if possible) at each total surface activity measurement location using "FLDSN" as the L5 code. Mark areas of elevated activity and specify on the applicable forms (attachment 6.5, the download reports & survey drawings) which SML(s) were used at elevated scan locations.

Collect measurements within each previously scanned 1 m2. Also, ensure that add;tional total surface activity measurements are collected from any area (s) of elevated activity identified and marked during the scan. Use the next sequentiallocation number for additional measurements and "FLDSN" as the L5 code.

Bkgd instructions Collect a minimum of six 15-second shielded local area background counts for each surface identified by a location code, ensuring that at least 3 background counts are performed for each download.

Enter a zero background subtract value when downloading survey data. Use "FLDBK" as the L5 code when performing background counts.  ;

Removable Activity Beta-Gamma : Collect at the same locations as the total surface activity measurements.

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1 - Measurement types include Total activity, removable activity, exposure rate, in situ, special samples and PIC.

SC.FRS,102.5 5 M0211M ))

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ATTACIIMENT 6.5 (PART 2)

(SPECIFIC) SURVEY INSTRUCTION FORM Package Page b of 2.5 GENERAL INFORMATION Survey Instruction Reason : Initial Final Release Survey Package ID : F0015 Category : Upper walls & ceiling, & all Survey Unit

Description:

structures / equipment -interior Ceiling / Equipment / Walls Above 2 Meters Classification :Non-suspect, affected structure Grid Size (m) : N/A Area (m') : 203 UnitCode (L1,L2,L3): F0015, AS001, CZT01 TOTAL ACTIVITY Beta scan required Detector Code (L4)* : 0?200 Detector Model : LMI 43-688 Count Time : 15 seconds o i.ct, moa 43 eas a 4> ions can n. a im.<cn.no..ni, wn.a n'as in. 4>ees empioy n te coa. or c22o0. on.c mg in. 4> ices. .mpioy n ie coa. oe c22o1 1

Count Type (L5) : FLDCT Material Area (m') L6 L7 L8 Range # Mstmnts instructions / Remarks reactor building concrete - 107 80048 ZZZZZ 79-98 20 None painted (intenor) collection s1 - ger enc matenal 96 BMC01 ZZZZZ 99 113 15 None 4

REMOVABLE ACTIVITY Detector Code (L4) : 00000 f

Count Type (L5) : LAB 03 Beta smear i

Material Area (m') L6 L7 L8 Range Smear Type & Oty instructions / Remarks reactor building concrete - 107 B0048 ZZZZZ 79-98 Beta Gamma: 20 non, painted (intenor) 1 0

] collection s1 - genenc 96 BMC01 ZZZZZ 99-113 Beta Gamma 15 matenal None Comments:

SC.FRS.102.5-5 M021100 }O'

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a ATTACIIMENT 6.5 (PART 1)

(GENERAL) SURVEY INSTRUCTIONS General Information Package Page 3 of 2.A 4 '

Package ID : F0015 Survey Area Name : Level 1 Steam / Water Dump Tank Rm l l

Instructions Survey instruction Reason initial Final Release l Survey Unit

Description:

Floors / Walls Below 2 Meters l Unit Code (L1,L2,L3) : F0015, BZ001, BZT01 l

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l Survey Tvoe Generalinstructions Total Activity Scan 100% of the accessible surfaces using "FLDSN" as the L5 code. Mark areas of elevated activity and specify on the applicable forms (attachment 6.5, the download reports

& survey drawings) which SML(s) were used at elevated scan locations.

Collect measurements at grid intersections. Also, collect additional measurements at any areas of elevated activity identified and marked during the scan. Use the next sequential location number for the additional measurements and "FLDSN" as the L5 code.

Bkgd Instructions Collect a minimum of six 15-second shielded local area background counts for each surface identified by a location code, ensuring that at least 3 background counts are performed for each download.

Enter a zero background subtract value when downloading survey data. Use "FLDBK" as the L5 code when performing background counts.

Removable Activity Field check smear samples taken at elevated areas identified and marked during the scan. If the field check results indicate removable ectivity >1000 dpm/100 cm2, then post the area in accordance with procedure FSV-RP-OPS-I-101 and notify a F.O.C.

Beta-Gamma : Collect at the same locations as the total surface activity measurements.

Exposure Rate Obtain MicroSpec-2 measurements at 1 meter from locations marked on the survey map (s).

, ., . 9 Instructions Completed g y g g g ; y tj / : 4g These approvals are only req'd for investigation, replacement, of Technical Projects supervisor NL7 r$ Date r\)5LA other surveys performed after the Initial Final Survey in the Final Survey Lead Engineer t 6 oate ri) package.

Final Servey Operations Supervisor f\/ A Date A i

1 - Measurement types include Total activity, removable activity exposure rate, in situ, special samples and PIC.

SC.FRS.102.5-5 M021100 j ]

r ATTACIIMENT 6.5 (PART 2)

(SPECIFIC) SURVEY INSTRUCTION FORM Package Page R of M GENERAL INFORMATION Survey instruction Reason : Initial Final Release Survey Package ID : F0015 Category : Lower walls & floors -interior Survey Unit

Description:

Classification : Suspect, affected structure Floors / Walls Below 2 Meters Grid Size (m):1 X 1 Area (m') : 64 Unitcode (L1,L2,L3): F0015, BZ001, BZT01 SURVEY INSTRUCTIONS TOTAL ACTIVITY Beta scan reqc. ired Detector Code (L4)* : 02200 Detector Model : LMI 43-68B Count Time : 15 seconds o.i. cia,,noo.i. 4 Seas a 43-ioes cea be us.d ini rcanas..nir wn.n uomo in. 43-eas. .mpior an t4 coa. at c:200. we.a u no in. 4310e8. .mpior en L4 coa. or o220i Count Type (LS) : FLDCT Material Area (m') L6 L7 L8 Range # Mstmnts instructions / Remarks concrete - bare (interior) 5 B0002 77777 1-6 6 None reactor building concrete - 59 B0048 77777 7-78 72 None painted (interor)

REMOVABLE ACTIVITY Detector Code (L4) : 00000 Count Type (L5) : LAB 03 Beta smear Material Area (m') L6 L7 L8 Range Smear Type & Qty Instructions / Remarks concrete - bare (intenor) 5 B0002 ZZZZZ 1-6 seta Gamma- 6 None reactor building concrete - 59 B0048 ZZZZZ 7-78 Beta Gamma 72 None painted (interor)

EXPOSURE RATES Detector Code (L4) : 03000 Detector Model: MicroSpec Count Time : 5 minutes Count Type (L5) : FLDCT Materiall Building Type Area (m') L6 L7 L8 Range # Mstmnts instructions / Remarks reactor building concrete - ,S( G9999 ZZZZZ 1-8 8 None painted (intenor) m gas /v4 Other th M'I 21 SC.FRS.102.5-5 M021100 ]4

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.i l 4-ATTACIIMENT 6.5 (PART 2)

(SPECIFIC) SURVEY INSTRUCTION FORAI Package Page 9 of El GENERAL INFORMATION Survey Instruction Reason : Inrtial Final Release Survey Package ID : F0015 Category : Lower walls & floors -interior Survey Unit

Description:

i Classification : Suspect, affected structure Floors / Walls Below 2 Meters Grid size (m):1 X 1 Area (m') : 64

UnitCode (L1,L2,L3)

F0015, BZ001, BZT01 4

SURVEY INSTRUCTIONS 1

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ATTACHMENT 6.6 COVER SHEET - DOWNLOAD REPORTS Package Page \C of M Package ID : F0015 Inst Function Sat Download File # Location Code ' Measurement Type M2350/ Detector Serial # Technician /Date (Y/N)2 izou-5 w *"" t az,ci .

rs- im al PR iza721 Otreen /1-15-% 7 1376 3 Ad @5$[o'iW D~ VLbIN/'PR ll?R ~:Lt Oimen / 3-15-ciG, y' i no-3 a s,, A474%wi,cxroi r5 - i wo mV/P2.ioMo I (breen / F-is-94  !/

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G' #26/99/ ('R1359>I F/ eke A+ /g -If'7.4 Y Cb Th9fq. YIk38 _/

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/ l Comments k verd;nt u\ so-ne ch et VS fuwel,' tedw'c.sb ne l ' "y c . e n % 1 e' cP > 2/ PT fT6 1 Use L2. L3 & L6 for Surfaces & Structures or Open Land Areas Survey Units and use L7 & L8 for Plant Systems Survey Uruts.

2 IF the instrument response check DID NOT pass acceptance (e g faded source response, efficiency, irnproper count time, etc ). THEN indicate ttus in this space, annotate the download report, anc contact R P Supervision and a Final Survey Engineer so that data can ce evaluated and the survey un!t in the package can be re-surveyed and the Survey Instruction Form can be annotated property by a Final Survsv Engineer as necessary.

Reviewed by: zu/ -

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licid Operations Coordinator Date SC.FRS.102.6-5 M021100 FILENAME = AT66_Ro RSL # ATT66 ROL M

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ATTACIIMENT 6.8 S'URVEY PACKAGE VALIDATION CHECKLIST S Instruction Reason:

Initial Final Survey C Other :

Investigation Survey 0 Replacement Survey Package ID : F0015 Package Page 1 of M

, DATA REVIEWS 7

SURVEY DOCUMENTATION REVIEVED FOR COMPLETION: FOC Remarks inital / Date. -

Gamma & Beta Scan Surveys c 94 '6llih'[

Total Activity Surveys t94 %lfi/%

Exposure Rate Surveys CD} 6[H/96 Smears Surveys Cp15;/lq/96 Soil Samples

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Water Samples Y4 '

Sediment Samples

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ALL REQ'D MEASUREMENTS & SAMPLE RESULTS ACCOUNTED Ganuna & Beta Scan Surveys h@ s/l'if%

Total Activity Surveys erv c/i<tl9L-Exposure Rate Surveys (p-) 9/f9/$

Smears Surveys C23- 9//9/f[.

Soil Samples /

Water Samples

"%J. l Sediment Samples /

COMMENTS Surveys are completed & validated ("V2 A Date: n >)A

• Field Operations r'oordinator i

Surveys are completed and the survey N 3 package review has been completed. N f. A Date: it't rl

• l'inal Survey Operatiorn Supenisor All survey design requirements are Complete.

dA Date: Ella

. Radiological 1:ngineer

• Required for investigation, replacernent or other survey a performed after the initial final suncy in the survey package.

SC.FRS.102.8-5 FILENAME = AT6s,RO.RSL i ATT6s.RDL M021100

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ATTACllMENT 6.11 '

SURVEY AREA HISTORY FILE j i OVERVIEW

! Package Page_ G of M I

Package ID : F0015 Elevation :4740 Drawing # :RX_1 Suney Area: F0015 I Building (s): Reactor Building Survey Area Name : Level 1 Steam / Water Dump Tank Rm l

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Survey Area Description :

Level 1 West Side - Steam / Water Dump Tank (T-2201) Room

Summary of Operational / Utilization Ilistory of Area (s)

] This room and the equipment within were in operation prior to August 18,1989.

' Tank (T-2201) was used to collect steam and water from system 22 in the event of a Secondary to l Primary leak,inorder to prevent overpressurization of the PCRV. Even though an event such as this never occured, the system was used from time to time to drain steam and water from the steam

manifold for various repairs and maintenance.

1 Decommissioning and Remediation Activities:

} General housekeeping was performed .n the room and inside of the tank, some sludge was j removed from the bottom of the tank.

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SC.FRS.102.ll-5 M021100 FILENAME s At011_R0 RSL i ATT611 RDL 05/15/96 1

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, , ATTACIIMENT 6.11 (CONTINUED)

SURVEY AREA HISTORY FILE Package Page G of _2A Package ID :F0015 Elevation : 4740 Drawing # :RX_1 Survey Area: F0015 Most recent radiological classification and survey results (range, averages, etc.):

i On 5/23/95 a 100% beta scan of the floor and walls below 2 meters was performed and three areas i

of contamination on the floor were found, all were 5,000 dpm/100 cm' fixed. Shortly after this I

' scan, the floor was mopped for housekeeping and another floor scan was performed on 5/30/95, all I

results were <3,000 dpm/100 cm2 fixed. Also on 5/30/95 the pump, valves, bottom half of the tank i

and miscellaneous piping and structures were surveyed and all were <3,000 dpm/100 cm' fixed.

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During both of these surveys approximately 20 smears were taken and all were <550 dpm/100 cm2 3

removable, l I

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No scans were performed above 2 meters, but 25 smears were taken in the overhead and all were I

, <375 dpm/100 cm2 I

On26/15/95 25% of the inside surfaces of the tank were scanned and results were <3,000 dpm/100

' cm . Four tritium smears and 12 beta-gamma smears were taken on the inside of the tank and all results were <MDA.

1 A sludge sample was taken and showed Co-60 concentrations of 1.6E-7 uCi/gm.

On 7/5/95 a follow-up survey was performed after the sludge was removed, this consisted of a 100%

, scan of the lower half of the inside of the tank and results were <3,000 dpm/100 cm2 The ventilation registers and louvers were removed and smeared all smears were <375 dpm/100 cm'.

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The floor drains (sys. 62) have been charaterized and no elevated reading were found. They will be

_ final surveyed at a later date.

1 For detailed results of characterization surveys see Isolation Report (IR-008).

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) References :

Informalinterviews with various PSCo and Westinghouse Team personnel regarding the operational j use and history of the survey area.

FSV Decommissioning Project initial Radiological Site Charaterization Report - Volume #3 Isolation Report # IR-008 i

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i SC.FRS.102.11-5 M021100 FILENAME s AT611,RO RSL / ATT811 ROL 03/15/96 Or .19

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. ATTACllMENT 6.11 (CONTINUED) l SURVEY AREA HISTORY FILE Package Page \ 9 ofl\

Package ID :F0015 Elevation : 4740 Drawing # :RX_1 Survey Area: F0015 l

CllECKLIST ,

lias the survey area ever been inside an RCA7 Yes

! If 'Yes', explain: The entire Reactor building is posted as an RCA.

lias the survey area ever been exposed to reactor coolant or radioactive process system liquid? No If 'Yes', explain:

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t lias the survey area ever experienced any known contaminated spills or breaches of contaminated systems? No If 'Yes', explain: l l

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I SC.tRS.102.11 5 51021100 FILENAME e At611,RO RSL / ATT611 RDL 05/15/96 m 20

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. ATTACIIMENT 6.11 (CONTINUED) s SURVEY AREA HISTORY FILE

. Package Page \ _6 of.'Z \

Package ID

F0015 Elevation : 4740 Drawing # :RX_1 Survey Area: F0015 4

CONCLUSIONS t

l Classification for Final Survey : Affected 1 Basis for Classification : Since there was some low level contamination found on the floor and none found on the upper wall or equipment, the areas below 2 meters are classified as i

Suspect Affected, and the areas above 2 meters and the equipment are classified as Non-suspect Affected.

i Does this classification require a change to the Sursey Area Breakdown ? No Prepared by: /'

S!f 5fC15 Radiological 1sgineer 1) ate )

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SC.FRS.102.115 51021100 FILENAME e AT611.R0 RSL / ATT611 RDL 05/15/96 ,

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ATTACilMENT 6.1 i FINAL SURVEY DATA INVESTIGATION FORM Survey Package #: F0015 Location Code (s): F0015AS001CZ Investigation No.1

]

Description of Problem (s):

1 The survey instructions which were written for location code F0015AS001CZ erroneously 3 specified the incorrect SML numbers for total and removable surface activity measurements collected for this location code.

)

Follow-up Actions:

The survey instructions for location code F0015AS001CZ specified survey measurement locations (SMLs) which were numbered from 79-113 for this location code. The SMLs should have been numbered from 1-35 as the total and removable surface activity measurements collected for F0015AS001CZ constitute a separate survey unit than those measurements numbered 1-78 which were collected for location code F0015BZ001BZ.

Prepared By/Date: 1g f/z/96 (Data Eval. Engineer)

Investigation Performed Ily/Date: JA Occhnician)

I 4

I l

)

l SC.FRS.110.1-2 Page 1 of 2 M021100 70

NITACllMENT 6.1 ,

. . . i, FINAL SURVEY DATA INVESTIGATION FORM '

Survey Package #: F0015 Location Code (s): F0015AS001CZ Investigation No.1 Disposition:

SMLs79-113, collected for location code F0015AS001CZ, were renumbered 1-35 in the measurement database. This was performed for both total and removable surface activity measurements. No further actions were required.

Reviewed By/Date: b g( h f j N 66 (Data Eval. Engineer)

Auth, for Partial Reclass. By/Dkte: N[A (FSLE)

SC.FRS.110.1-2 Page 2 of 2 M0211.00 71 4

1 NFTACllMENT 6.1 FINAL SURVEY DATABASE CORRECTION REQUEST FORM l i

DOWNI.OAD FILE # 1280-3 ,

l l

Correction (s)

Description:

For F0015AS001CZ Renumber all total and removable surface activity measurements from 1-35 in place of 79 -

113.

Reason for Correction: l The survey instwetions incorrectly specified an L8 range of 79-113. This is a separate ,

survey unit from l'0015BZ001BZ (with SMLs 1-78) and the measurements should be l numbered from 1-35.

l l

l Requested By: 4%mAev Date: 3/2o/96 Approved By :

NuS/lN mk Date: NMb (i

Comments:

Correction (s) Made: [3 pq Md Performed By: bb GN Date: N'i C SC.FRS. l l6.1-3 Page1 of1 M021100

~

72

NITACllMENT 6.1  ;

FINAL SURVEY DATA INVESTIGATION F0101 '

l Survey Package #: F0015 Location Code (s): F0015BZ001BZT01 Investigation # 2 Description of Pro ~olem(s):  !

The results of the Initial survey for survey unit F0015BZ001BZT01 indicated one survey measurement location (SML) with elevated results. The results at SML 114 exceeded the guideline value for total surface activity.

SML 114 (Download '1266-3, sample #26) had a net total activity of =9K dpm/100 cm2and a net  !

2 removable activity of 3,1 dpm/100 cm . SML 114 was identified during the Initial 100% scart survey, and was collected in addition to the initially prescribed 78 measurements. SML 114 is located on the floor.

No other SMLs indicated activity greater than the action levels.

Follow-up Actions:

Investigation Suney Scan in the vicinity of the elevated measurement result to define the bounds of the elevated activity.  ;

Mark any areas of elevated activity identified during the scan.

Collect a fixed point measurement and smear sample at the location of the elevated measurement result identified during the Initial survey (Renumber the SML # as 79 and use the the "G01 -

Investigation" survey reason code). ' Also, collect a fixed point measurement and smear sample at any area (s) of elevated activity identified during the investigation scan survey. Use the "G01 -

Investigation" survey reason code, and begin numbering with SML 80 for both the total and removable surface activity measurements.

If no elevated activity is found at either the location of the elevated measurement result (s) identified during the Initial survey, and no areas of elevated activity are identified the during the investigation scan survey, then no further survey is required. If elevated activity was identified for either case, then remediate the elevated area (s).

Remediation Activitics Direct remed.iation activities to ensure appropriate contamination control measures are implemented, and perform scan surveys to ensure the elevated areas are remediated. As a part of job-coverage, or after completion of remediation, ensure that a 100% scan survey is performed within the vicinity of the elevated measurement result (s) to confirm remediation was successful. Also, perform scan surveys over any adjacent surfaces which may have become contaminated during the remediation process. Mark area (s) of elevated activity, either for additional remediation, or for the following Remediation survey fixed point and smear sample measurements.

SC.FRS.110.1-3 Page 1 of 3 M021100 c.c 73

A'ITACIDIENT 6.1 l FINAL SURVEY DATA INVESTIGATION FOIOl 1

Follow-up Actions (Cont.):

Remediation Survey Following remediation activities, perform a Remediation survey using the following technique:

Grid the surroundmg surface using a 3 by 3 meter grid pattern. Position the grid pattern so as to j include the location of the elevated measurement result (s) identified during the initial survey, and any i additional area (s) of elevated activity identified during the Remediation scan survey. (Expand the 3 by 3 meter grid pattern as necessary.) Collect a minimum of 5 total and removable activity measurements from within each square meter. First collect measurements at the area (s) of elevated

, activity identified during the initial survey, then collect measurements at any areas of elevated activity identified during the Remediation scan survey, then collect the balance of the 5 measurements uniformly distributed within each square meter.

Use the "R01-Remediation" survey reason code, and begin numbering with the next sequential SML

], number after the last Investigation measurement.

Annotate a survey map to identify the location of the Investigation measurements (scan and fixed j point). If remediation is performed, then annotate a survey map to identify the location of the Remediation measurements (scan and fixed point). Denote on Attachment 6.4 (Part 1) form (s) and Attachment 6.5 (Part 2) form (s) the area (m2), SML range (L8), and the number of Investigation and Remediation survey measurements, as applicable. Submit the sub-package to a Survey Package Engineer.

The Surv2y Package Engineer will update the Package, including the type and number of measurement (s). After the Package is updated, return the survey package and sub-package to the Data Evaluation Group. q '

Pregned By/Date: h/ d b G-( (Data Eval. Engineer)

Investigation Performed By/Datk d h h g, h g, p[,, (Technician)

SC.FRS.110.1-3 Page 2 of 3 M021100 74

ATTACilSIENT 6.1 FINAL SURVEY DATA INVESTIGNIlON FORat Survey Package #: F0015 Location Code (s): F0015BZ0018ZT01 Investigation #2 Disposition:

i SML 79 in download 1450 was collected at the same locatica as SML 114 to investigate the elevated activity identified during the scan survey. Total surface activity at SML 79 was calculated as 7,921 dpm/100 cm2 after accounting for the field and medium backgrounds. This elevated activity confirmed the previous measurement collected at SML 114 in download 1266.

Decontamination measures were applied to the area of elevated activity and a remediation survey performed following the cleanup. The remediation survey required performance of a 100% scan survey within the vicinity of the elevated measurement and the collection of 30 total and removable surface activity measurements from the surfaces encompassing the location of the elevated measurement identified during the initial Final Survey.

SMLs80-109 were collected in the remediated area, with SML 80 taken at the same location as the initial elevated measurements collected at SMLs 114 and 79. The total surface activity measurement collected within download 1455-3 at SML 80 was 596 dpm/100 cm2 with a removable surface activity less than the minimum detectable activity (MDA).

The 30 total and removable surface activity measurements collected for the remediation survey confirmed that the decontamination was successful. Based on the results of the Remediation Survey, the following actions were taken:

The initial total and removable surface activity measurement results for SMLs 114 and 79, collected in downloads 1266-3 and 1450-3, were deleted from the measurement database i and were not used for reporting purposes. '

The 30 remediation total and removable surface activity measurement results for SMLs80-109, collected in download 1455-3, were added to the measurement database and were used for reporting purposes.

No further actions were required.

Reviewed By/Date: 4 4433g Q f q l y(, (Dea Eval. Engineer)

Auth. for Partial Reclass. By/Date: ,j4 (FSLE) l 1

l l

SC.FRS.110.1-3 Page 3 of 3 M021100 75 l

NITACIIMENT 6.1 FINAL SURVEY DATABASE CORRECTION REQUEST FORM i DOWNLOAD FILE # 1266-3, 1450-3 4

l

Correction (s)

Description:

For F0015BZ001BZ Delete the following total and removable surface activity measurements:

In download 1266-3, delete SML 114 (sample number 26) and the accompanying removable 2

surface activity measurement RC 26.64073.

In' download 1450-3, delete SML 79 (sample number 10) and the accompanying removable j surface activity measurement RC 26.69821)

Reason for Correction:

Reference Investigation No. 2. Elevated activity was identified at SML 114 and confirmed at SML 79. Remediation was performed and the decontamintion successful. Both SMLs were replaced by SML 80 in download 1455-3.

Requested By: D. Anderson Date: 9/09/96 Approved By : OLtal[l[dd Date: Y9 /94

\

Comments:

Correction (s) Made: k$ decjAEc}

Performed By: G Date: 9-9-94 SC.FRS.116.1-3 Page 1 of1 ,

M021100

.. 7g

Package ID : F0015 ATTACIIMENT 6.4 (Part 1)

INITIAL SURVEY PACKAGE DESIGN gDE Package Pag a f of 10 1

Survey Medium Numberof Measurements $

Survey Unit Description Type Classification Survey Medium Description SA ER In Situ PIC F0015BZ001BZG01 surfaces a structures suspect, affected structure concrete - bare (interior) o o. O o Swface Area Sunnry Area M Building: Reactor Building 4740 ft elevation Enamel paint over concrete (sntenor) g 0 0 0 Total surface area 64 Floors / Walls Below 2 Meters Floor area - 22 .

Wall area < 2 m 42 General Remarks / Design Considerations wari area > 2 m MA initiated by investgaton #f dated B-22-96. Ceiling area pA 2 (5/v 4+4L i

t l

1 l

D 0 '

h\ ' b

~

S^ " S"" ace ActNity ; ER = Exposure Rate.

• Prepared'by : Date: 42. 4

~

SC.FRS.102.4-6

\J M021100 ,

FILENAfJE = AT64_1R1 RSL / ATT64_t RDL

l ATTAC11 MENT 6.5 (PART 1)  ;

(GENERAL) SURVEY INSTRUCTIONS l GeneralInformation Package Page of l0 Package 10 : F0015 Survey Area Name : Level 1 Steam / Water Dump Tank Rm I j instructions Survey instruction Reason: Investigation l Survey Unit Description; Floors / Walls Below 2 Meters l Unit Code (L1,L2,L3) : F0015, BZ001, BZG01 J

{ Survey Tyne 1 General Instructiorn Total Activity Scan in the vicinity of each elevated measurement result to define the bounds of the i

elevated activity using "FLDSN" as the L5 code. Mark areas of e'evated activity and i specify on the applicable forms (attachment 6.5, the download reports & survey drawings).

Collect a measurement at elevated areas identified during the initial survey (refer to attachment 6.1, Final Survey Investigation Form). Then collect additional measurements .

at any areas of elevated activity identified and marked during the remediation scan. Use )

the next sequential location number for the measurement (s) and "FLDSN" as the LS '

code.

Bkgd instructions Collect a minimum of six 60-second shielded local area background counts for each surface identified by a location code (i.e. each survey medium), ensuring that at least three background counts are performed for each download.

Enter a zero background subtract value when downloading survey data. Use "FLDBK"

. as the L5 code when performing background counts.

Removable Activity Field check smear samples taken at elevated areas identified and marked during the j scan. If the field check results indicate removable activity >750 dpm/100 cm 2, then post the area in accordance with procedure FSV-RP-OPS-I-101 and notify a F.O.C.

Beta-Gamma : Collect at the same locations as the total surface activity measurements.

i i i instructions Completed Radiological Engineer A cate i

for ves igat o replac ment, Technical Projects superwsor N Date 6[2 2[fg, or other surve s performed after j the initial Fina Survey in the Final survey Lead Engineer

'I Date (p7gU package. .

q Final survey operations suctrwsor Date

( Q'

)

i er i

1 - Measurement types include: Tc,tal activity, removable activity, exposure rate, in situ, special samples and PIC.

SC.FRS.102.5-6 FILENAME

• AT65.1R1 R$Li ATT65_1 RDL M021100 g

~.. ,

ATTACIIMENT 6.5 (PART 2)

(SPECIFIC) SURVEY INSTRUCTION FORM  !

GENERAL INFORMATION l Survey Instruction Reason : Investigation Survey Package ID : F0015 Category : Lower walls & floors -interior Survey Unit

Description:

l Classification : Suspect, affected structure i Floors / Walls Below 2 Meters Grid Size (m) : Area (m') : 64 1 UnitCode (L1,L2,L3): F0015 BZ001, BZG01 i

SURVEY INSTRUCTIONS 1

i TOTAL ACTIVITY Beta scan required Detector Code (L4)* : 02200 Detector Model : LMI 43-68B Count Time : 15 seconds i Detector modois 43488 & 431068 can be used rierchangeacky When useg the 43488 employ en L4 code of 02200 when useg the 431068 employ en L4 code of 02201 ,

l Count Type (L5) : FLDCT Material Area (m') L6 L7 L8 Range # Msrmnts Instructions / Remarks concrete - bare (intenor) B0002 77777 g g None Enamel paint over concrete B0048 44444 None (interior) gi g 7j REMOVABLE ACTIVITY Detector Code (L4) : 00000 Material Area (m') L6 L7 L8 Range Smear Type & Oty Instructions / Remarks concrete - bare (intenor) B0002 77777 Beta Gamma- [ None l}

Enamel paint over U0046 44444 Beta Gamma None concrete (intenor)

[8 i

( 79  ;

i i

Comments:

SC.FRS.102.5-6 FILENAME = AT65.2R0 RSL / ATT65.2 RDL M021100 7

--- . = _ . . . - . - - . . . . . - .. - .

i ATTACIIMENT 6.4 (Part 1)

Package ID : F0015 Package Page of /O Survey Medium Number of Measurements' Survey Unit Description Type Classification Survey Medium Description SA ER in Situ Plc F0015BZ0018ZR01 surfaces & Structures suspect. affected structure concrete - bare (interior) o 0 0 0 Building: Reactor Building 4740 ft elevation surface Area % Area m enames paint over concrete (intenor) 0 8 0 Total surface area G4 30 Floors / Walls Below 2 Meters Floor area 22 .

Wall area < 2 m 42 General Remarks I Detian Considerations Watt area > 2 m hN Indiated by investgaton dated 8-22-96.

Ceding area y V

me

.p-=

Prepared by :

Date: N-22-74 .

SC.FRS.102.4-6 s M021100 FILENAME = AT64_1R1 RSL / ATT64_1 RDL

a l

l ATTACIIMEN't 6.5 (PART 1) l GeneralInformation Package Page 5 or lo Package ID : F0015 Survey Area Name : Level 1 Steam / Water Dump Tank Rm l

l Instructions Survey instruction Reason: Remediation

[ Survey Unit Desenption: Floors / Walls Below 2 Meters l Unit Code (L1,L2,L3) : F0015, BZ001, BZR01

\

l 1

Survev Tvag i General InEltuctions Total Activity if a 100% scan of accessible surfaces was not performed after remediation activities, then I perform a 100% scan of the accessible surfaces, as determined by the investigation  !

follow-up actions, using "FLDSN" as the L5 code. Mark areas of elevated activity and l specify on the applicable forms (attachment 6.5, the download reports & survey drawings) which SML(s) were used at elevated scan locations. );

Collect a measurement at elevated areas identified during the initial final survey (refer to l attachment 6.1, Final Survey Investigation Form). Collect measurements at SML locations denoted on the survey map (s) as determined by the investigation follow-up actions. Also, collect additional measurements at any areas of elevated activity identified and marked during the remediation scan. Use the next available sequentiallocation  !

number for the remediation measurements and "FLDCT" as the L5 code.

Bkgd Instructions Collect a minimum of six 60-second shielded local area background counts for each surface identified by a location code (i.e. each survey medium), ensuring that at least three background counts are performed for each download.

Enter a zero background subtract value when downloading survey data. Use "FLDBK" as the L5 code when performing background counts.

Removable Activity Beta-Gamma : Collect at the same locations as the total surface activity measurements.

1+N

, 1 h Instructions Completed

, h g g.q!O for es igatfo replac ment, Technical Protects supennsor h O Date N or theother Initialsurvefs performed Fina Survey in the after

/ y package.

Final survey Lead Engineer

[d - <

Date 4 Foal survey operatons supervisor

,,s

_d/ r ,

Date

/ 'V i

l I

1 Measurement types include: Total activity, removable activity, exposure rate in situ, special samples and PIC.

SC.FRS.102.5-6 M0H100 g FILENAME

• A165.1R1 R$Li ATT65.1 RDL j

ATTACllMENT 6.5 (PART 2)

(SPECIFIC) SURVEY INSTRUCTION FORM Package Page g of N GENERAL INFORMATION Survey Instruction Reason :Remediation Survey Package ID : F0015 Category : Lower walls & floors -interior Survey Unit

Description:

Classification : Suspect, affected structure Floors / Walls Below 2 Meters Grid Size (m) : Area (m'): 64 Unitcode (L1,L2,L3): F0015 BZ001, BZR01 SURVEY INSTRUCTIONS TOTAL ACTIVITY seta scan required Detector Code (L4)* : 02200 Detector Model : LMI 43-68B Count Time : 15 seconds Detector models 43488 8 43-1068 con be used intercnongeaoly When usog the 43488. employ en L4 coao of 0220o. when usq the 43-1068 employ en L4 code of 022o1 Count Type (L5) : FLDCT Material Area (m') L6 L7 L8 Range # Msrmnts instructions / Remarks concrete - bare (intenor) B0002 ZZZ1.Z ,f None yk Uh W t;namel paint over concrete B0048 ///// None (interior) p8 8o*IOf D6 REMOVABLE ACTIVITY Detector Code (L4) : 00000 Material Area (m') L6 L7 L8 Range Smear Type & Oty Instructions I Remarks concrete - bare (intenor) BOCO2 77777 Beta Gamma: None ye #

t;namel paint over B0048 ///// Beta Gamrna.

concrete (intenor) None N

% o-80 9 g Comments:

i SC.FRS.102.5-6

,.. .ea, . .o a,. .. .

M021100 0

ATTACIIMENT 6.6 COVER SIIEET - DOWNLOAD REPORTS Package Page 7 of /g Package ID : F0015 Inst Function Sat I

Download File # Location Code Measurement Type M2350/ Detector Serial # Technician /Date (YIN)2 1450-3 at ei, pa% 6oe% Beh (2uot /a.2r.9o2 A.ha:,H /8-23K Y

(456- 3 Moot, 51Roi. 3aest B .4ct t2Cle>f / 12c962- .

14 De eff/A-24%

T 7 _

W/7

- 7 7

/

f Comments 1

Use L2. L3 & L6 for Surfaces & Structures or Open Land Areas Survey Units and use L7 & LB for Plant Systems Survey Units.

2 IF the instrument response check OfD NOT pass acceptance (e.g failed source response, efficiency, improper count time, etc.) THEN indicate this in this space, annotate the download report. and contact RP Supervision and a Final Survey Engineer so that data can be evaluated and the survey unit in the package can be re-surveyed and the Survey Instruction Forrn can be annotated property by a Final Surv9y Engineer as necessary.

Reviewed by: C> d d Fwtd Operanons Cwurdinator T!i Due fd

_, SC.FRS.102.6-6 AIO21100

ENAME

• ATQR0 Rsl 1 ATT66 RDL

- __ _ _ . _ _ _ _ _ _ _ . . _ _ _ - _ _ . _ _ __________-_______.________________m_ . _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ -_ - _ _ _ .J

i ATTACHMENT 6.8 SURVEY PACKAGE VALIDATION CHECKLIST Survey Instruction Reason: p, frutial Final Survey i Other MN.(b(.

Investiganon Survey i Replacement Survey Package ID : F0015 Package Page _ of l0 DATA REVIEWS SURVEY DOCUMENTATION REVIEWED FOR COMPLETION: FOC Remarks inital / Date Gamma & Beta Scan Surveys cp3 '[l,l/g(,

Total Activity Surveys qpp ql$/qg Exposure Rate Surveys g/4 Smears Surveys (.f;; 7[y/9[,

Soil Samples

/

Water Samples

[C Sediment Samples

/

ALL REQ'D MEASUREMENTS & SAMPLE RESULTS ACCOUNTED Gamma & Beta Scan Surveys (p3 g/g/9b Total Activity Surveys ,;yJ.g/f[96 Exposure Rate Surveys y/f4 Smears Surveys qpgy/g/g, Soil Samples y

Water Samples g Sediment Samples

[ '

COMMENTS Surveys are completed & validated ( T~kk.

• Field Operations Coordinator Date: $ f 5/7L.,

Surveys are completed and the survey f

• package review has been completed.

/[ .

• Final (upley Operanons Supersisor Date: pg f All survey design requirements are complete.

g,fggM4d [a4, Date:f- f-N6

• Radiologi' cal Engmeer

• Required for iniestigauon, replacement or other surve)s performed after the initial fmal sursey m the survey package.

SC.FRS.102.8-6 FILENAME = Af68 R0 R5L / A176: RDL M021100 c .'

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ATTACHMENT 6.5 SURVEY LNSTRUCTION CHECKLIST

'I ptstas Gilin the informance below regarding the downiced measurements coltested for this Final Survey Package. Answee the questiona checking either YES or NO. Aa explanaden is required for any questinns answered with a NO response.

Download File Number: i4 5o _ Dow,iiend sisir.n Nu,nbe,: 5 Survay Package Number: E- O O I 85 Rea son: - Enue.Sk-15ah'on i

1. This Checklist is for (check one): OTurfaces A Siructurus (FRS.1102) 0 Sysiems (FRS I ild) 0 Open Land Astas (FRS I-

^

102) 0 Other (explain):

I

2. Have the memaunmenu been co!!seted in accordance with the Survey Package Instructions? YES V NO O If NO is answered. then explain why:

8

3. Have the Survey Maps been annoisted and updaied to ref!ces the Bets Scan Survey (check one): YES I NO O a) If NO. lisi the reason why the survey mars *er* not sanotaled (eheck one): 0 Not required 0 Performed previously

r. O Other (eaplain):

b) Any additional enessurements collected? YES 0 NO V If YES. list the survey Measursmens Locsiion (SML) numbers below that were col!ceted in addition to the preecnbed measursments.

1 If NO. list the reason why the survey maps were not annoisied (Check one): 0 Noi nquired 0 Perfarnwd prsviously Wo elevated rneasurement locations identiGed 0 Other (captain):

4. Has Attachrnent 6.6

• Cover Sheet . Downined Repons* been updated to reflect this download? YES P NO O If NO is answered, then lies the rtanon for nos completing the updaie.

3. Have the Removable Surface Activity (smears) measurements been collected as the S A loss 6nns s' Prescribed by the Survey Pack. age Instrucjtie

• YES v Date sent to Radiochemistry: b-23 ~M b NO O -

If NO is erwwered. then list the tsanon for new colleceirr theme .4mples.

O Not required 0 Collected previously 0 Other (explaint:

6.

Has the informadoo subevnad on FRS-RP-INST-l 134. Attschnwns 6.l. "SujrveDownload Data Form

• heen correcily entered on the header of the download report and til encasurements properly identiGed? Y ES v NO O If NO. Cornplete F1t.5 RP INST-34J4. Attaehrneni 6.1. Cornetions Required Cover Sheet to cornet informadon.

7.

When the checklisi questions have been answend and a "YE3* re.ponw is conGrmed jforucasion Number 6. (above) Attachment 6.l. *$vrvey Download Data Form

• cea be discarded. Che.k if Arischnwns 6.l. DWanted c

> A Technicien (Print Name): bkChn a AIF (signaiurvs: _ GlA Date: M3k RP. INST.234.5-7 Page ! OfI M021100 00 $g

ATTACa...fENT 6.2 .-

CORRECTIONS REQUIRED COVER SIIEET FILE i I460-3 Corrections Needed Requested By Approved By Actions Taken Performed By Initials Date i Initials Date Initials Date c%e Sample _

• Io -

. o CLDcY ask Lg..[, pD MW (uc ,ja,yi G < ~sel G t. H o W a-1

(, ,,, , ,g g L1 fo 00079 c- sa-fle 10

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1 Attach ti;is sheet to the front of the Survey Download Report requiring changes.

D m

RP. INST.234.2-7 Page 1 ofI C3 0 -

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- _ - - - . - . - - ~ -

n SCIENT!Flc ECOLOGY GROUP, INC. -

SEG Radiological Engineering & Deconnissioning Services Fort St. Vrain Deconnissioning Survey Report Direct Beta survey Report, Suspect Affected Surf aces and Structures File 8: 1450, Reactor Building, Level 1, Steam / Water Dung Tank Room, Package F0015 Reasons hvestigation User: At02805/12ca:01 Instrument Model: 2350-1 S/N: 126201 Detector Model: 43-1068 Detector S/N: PR126902 Detector Type: 125 cm2 Cas-Flow Proportional Detector (Beta)

Average Field

Background:

O cpm Efficiency: .206 Pro and Post source checks are included on this download: Yes No If No is answered, then list the Download Files which include the Pre and Post source checks.

Pro File 8: Post File #

Surysy Date: 8/23/96 Report Date: 8/23/96 Station: 3 l----------------------.-

File: 1450 Page: 1 l Comments '

I L7 Code L8 Code Count Gross Net beta l Location Sample Time Gross CPM per DPM per N l Grid ID Nunber Number (sec) Counts Det Area 100 cm2 1 l

l

--. Survey Unit Code: L1: F0015 L2: 82001 'L3: BZG01 l Analysis Code: L4: 02201 L5 FLDBK L6: B0048 l Detector Setup: 1 l

l ZZZZZ 00007 4 60 32,8 328 1274 l ZZZZZ N008 5 60 353 353 1371 l ZZZZZ 00009 6 60 345 345 1340 l ZZZZZ 00010 7 60 319 319 1239 l ZZZZZ 00011 8 60 392 392 1522 l ZZZZZ 00012 9 60 406 406 1577 l Number of Measurements: 6 Average: 1387 l Average epm per det, area: 357 l l

1

-- Survey Unit Code L1: F0015 L2: 8Z001 L3: BZG01 l Analysis Code: L4: 02201 L5: FLDCT L6: B0048 l Datector Setup: 1 l  !

I ZZZZZ 00079 .10 15 623 2492 9678

• l

' Number of Mensurements: 1 Average: 9678 l Average epm per det, area: 2492 l l

1

- Survey Unit Code: L1: ZZZZZ L2: SC935 13: ZZZZZ l l Analysis Code: L4: 02201 L5t PRB01 L6: ZZZZZ l Octcetor Setup: 1 l

l ZZZZZ 00000 1 60 1506 1506 . '.5849

• l I

i l

• Flag is set at 3000 dpm/100 sq. em. for total surface activity. M021100 1

9.I

m_. - . _ . -._._.--_-__--_.._~..m. . . . _ . _ . . ~ . . . _ . . _ _ _ . ~ . _ . _ . . , - _ . . . . _ _

l .

l Sui . ./ Date: 8/22/96 Report Dsts: 8/23/96 Station: 3 l..-a................................... ,,........  !

File .1430 ' Psgi 2 l Comments-

~

l ,

! L7 Code LB Code Count Gross Net beta .l _

l Location Sample 'ilme Gross CPM per DPM per H .)

- Grid ID Number Number (sec) Counts Det Area 100 cm2. I l l

..-. Survey Unit Code 'L13.ZZZZZ L2: SC935 L3: ZZZZZ l Analysis Code: L4: 02201 LS: PRB01 L6: ZZZZZ l l

Datsctor Setup: 1

.l l ,

Number of Measurements: 1 Average: 5849 l

. Average epm per det. area: 1506

.{

j l 1 l .......... .............

l l l 1 l .... Survey Unit Code L1: ZZZZZ L2: SC935' L3: ZZZZZ -l An3tysis Code Dattetor Setup:

L4: 02201 LS: PRB02 L6: ZZZZZ 'l 1

l. i l l ZZZZZ '00000 2 60 1643 1643 6381 '*

l- (

Number of Measurements: 1 Average: 6381 Average epm per det. area:

l )

l 1643 l J

........................ 1 l

1

! - Survey Unit Code: L1: ZZZZZ L2: SC935 L3: 22ZZZ l ,

iAnstysis Code: L4: 02201 ~L5: PRB03 L6: ZZZZZ l  !

Datsetor Setup: ~1 l

l . l l ZZZZZ 00000 3 60 1537 1587 6163

• l

l. Number'of Measurements: 1 Average: 6143 l j Average cpm per det. area: 1587 .l l

l

.... Survey Unit Code: L1: ZZZZZ L2: SC935 .L3: ZZZZZ j Analysis Coder L4: 02201 L5: PRBBK L6: ZZZZZ l D<stsetor Setup: 1 l

I

- 2222Z 00000 0 600 5004 500 1943 l 1 Nurrber of Measurements: 1 Average: 1943 l ]

Average cpm per det. area: 500 'l l

l 4

..-. Survey Uralt Codes' L1: ZZZZZ L2: Cc935 L3: ZZZZZ l l

l -Analysis Code: L4: 02201 LS: PTB01 L6: ZZZZZ l j

! Dstector setup: 1-l

! I j- ZZZZZ _00000 ~ 12 60 1276 1276 4955

• l

[ Number of beasurements: 1 Average: 4955 l l Average epm per det. area: 1276 l  !

l i .

,- I f

f ,

! e i i

• Flag is set at 3000 dpm/100 sq. em. for total surf ace activity. M021100 nr 92

. . - - _ -~ .- .~. -. - . . _ . . . - . . . . . -- --,- - .- __ . . . .

s  !

sus f Dats

8/23/96 Report Dates 8/23/96 Station: 3 j............-........................d ........ e File: 1150 Ptge: 3 l Consnents l

...............................................................................i

, LT Code L8 Code Count Gross Net beta l ,

Location Sanple . Time '

Cross CPM per DPM per M l

j Grid ID Number Nuter (sec) Counts Det Area 100 cm2 1 l

f ........ ...'....... ...... ......

l l l

.-.. Survey Unit Code: L1: ZZZZZ L2: SC935 L3: 22222 l  ;

Anstysis Code: L4: 02201- LS: PTB02 L6: 22222 l l D:tsctor Setup: 1- l  ;

1 l

1 ZZZZZ 00000 13 60 1353 1353 5254'

• l Number of Measurements: 1 Average 5254 l s

Average cpm per det. area

1353 l j l

l l

.... Survey Unit Code: L1: ZZZZZ L2: SC935 L3: ZZZZZ l

} Analysis Code: L4: 02201 L5: PTB03 L6:22222 l Detector Setup: 1 l

! , g 4 l ZZZZZ 00000 14 60 1339 1339 5200

• l

Number of Measurements: 1 Average: 5200 l 2

Average epm per det area: 1339 l i

1 ........................  ;

i .

l

-... Survey Unit Code: L1 ZZZZZ L2: SC935 L3: ZZZZZ l

} Analysis Code: L4: 02201 L5: PTBBK L6: ZZZZZ l-Detector Setup: 1 l j i I j ZZi22 ' 00000 11 60 400 400 1553 l kumber of Measurements: 1 Avera'ge: 1553 l Average epm per det. area: 400 l j ........................

l ~

I

...............................................................................l Total Nunber of Measurements on this Report: 15 l l End of Report l

Date: R .2 '4 -%

Survey Performed By: lG m r2 m i e / t OAA Print Name Signatur ,

i a s Survey Reviewed Dy C <Tes Fihe h e/ C-Print Name signature o.te, 1+%

j '

1 01559:C:\PDox35\M2350\TLOCREvu:R3 4-23 93 JPA 9 12 95 GWE 1 17 96 GWE 7-25-95 MRM 10 27-95 GWE e i I

• Fttg is set at 3000 dpm/100 sq. em. for total surface activity. M021100 e-93

T i ,

t.. ,,.

i Final Survey Download Report File Number: /9bb3 '

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1 l

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ATTACUMENT 6.5 SURVEY INSTRUCTION CHECKLIST Ptesse fill in the infonnation below regarding the download measurements collected for this Final Survey Package. Answer the queu checking sither YES or NO. An esplanation is nquirid for any questions answend with a NO response.

Download File Number: I455 Downiosd siairon Number: 3 Survey Package Number: Ml b Reason: _ o pA. nse r< . tics ah I. Dia Checklin is for (check one): Mrfaces A $iructurva (FRS.I.102) 0 Systems (FRS I ll4) 0 Open Land Arus (FRS.I.

102) 1 0 Other (explain):

8. Have the measuremenu been collected in accardance with the Survey Package Instructiona? YE5 [ NO O If NO is answered, then explain why:

3. Have the Survey Mapa teen annouisd and uposied to rvfleet the Beta Sean Survey (check one): YES V NO O a) If NO. lisi the reason why the survey maps were not annotated (ehack one): C Not required 0 Performed previously 0 Other (cxplain): '

b) Any additional encasuremnu collected? YEs 0 NO V If YE3. lim the Survey Measurement Location (SML) numbers below thai wers collected in addition to the pr acnbed rnesauremenu.

1 If NO. I a the reason why the survey mapa were not annoisted (Check one): 0 Not r, quired 0 Performed previounty o elevated rnesaurtment locations identified 0 Other (emplain):

4 Has Aruchment 6.6

• Cover Sheet Dowrdoad Repons' been updaied to rullect this download? YE3 I NO O If NO is answers 4. then list the reason for rma completing the update.

5. Have the Removable Surface Activity (smears) rnessursments been sollected at the 3 A laations as prescribed by the Survey Package I

instructie '

YES Daie sent to Radiochemistry: h.O N NO O -

If NO is ans*cred, then lim the runoe for not collecting these samples.

O Not r,quind 0 Collected previously 0 Diher (carlains:

6. Has the information nebrunad on FRS-RP. INST I 234. Aitsehment 6.1. 'Surve iwnloso Data Form

• been correctly entersd on the header of the download report and all encasurements properly identified? YE3 NO O If NO. Complete RS-RP.!NST.I.2.34. Aiushment 6.2. Corecetions Required Cover Sheet to sonset information.

7. . When the checifist queuions have been answered and e *YE3* re ponw is confirmed yfovess;on Number 6. (above) Attachment 6.1. ' Survey Dowrdoad Deu Form

• can be discarded. Chest if Aitachm:nt 6.l. Disesrded 3 -

. Ali

) r.ucian unt Nsme): AIc. , % w II <s:c-n>:

b . ]nl, m -- y osu:

8-u.- K {

RP. INST.234.5 7 Page ! Of1 , M021100

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i 1

1 t i l SCIENTIFIC ECOLOGY GROUP, INC. - SEG '

?

Radiological Engineering & Deconnissioning Services

Fort St. Vrain

• Deconsnissioning Survey Report

, Direct Beta Survey Report, Suspect Af fected Surf aces and Structures i

f.

File #: 1455, Reactor Building Level 1, SteaWWater Dump Tank Room, Package F0015 i Reason Remediation User AFD2805/126201 j l Instrument Model: 2350 1 S/N: 126201 Detector Model: 43 106B Detector S/N: PR126902 I

j. Detector Type 125 cm2 Cas-Flow Proportional Detector (Beta)

Average Field Backgrounds O cpm Efficiency: .213 6

1- Pre and Post source checks are included on this download Yes No [

! If N3 is answered, then list the Download Files which include the Pre and Post source checks.

l Pre file #: 1450 Post File #: 1465 f Surysy Date: 8/23/96 Report Date: 8/Z3/96 Station: 3 l----~"----~~~~~~~~~~-"~~-

.Fites 1455 Page: 1. l Comments ,

I

...............................................................................l

$ L7 Code L8 Code Count Cross Net beta l

{ Location Sample ilme Gross CPM per DPM per H l

Grid e Number . Nmtser (sec) Counts Det Area 100 cm2 i l l j j~ . ~ . S urs it Code

L1: F0015 L2: 8Z001 L3: BZR01 l  !

j Anal , Coder L4: 02201 LS: FLDBK L6: 80048 l Datsetor Setup: 1 l i l i ZZZZZ 00007 0 60 376 376 1412 l j ZZZZZ 00008 1 60 309 309 1161 l l ZZZZZ 00009 2 60 363 363 1363 l l 1 ZZZZZ 00010 3 60 389 389 1461 l 1

ZZZZZ. 00011 4 60 406 406 1525 l I l ZZZZZ 00012 5 60 350 LO 1315 l  !

l Number of Measurements: 6 Average: 1373 l j Average epm per det, area: 366 l 1 ........................

l l

~~ Survey Unit Code: L1: F0015 L2: BZ001 L3: BZR01 l l

] Anslysis Coder L4: 02201 LS: FLDCT L6: 00048 l

. Dstsetor Setup: 1 l

t I

ZZZZZ. 00080 6 15 155 620 2329 l ZZZZZ 00081 7 15 149 596 2238 l l' ZZZZZ 00082 8 15 125 500 1878 l ZZZZZ 00083 9 15 106 I.24 1592 l ZZZZZ 00084 10 15 139 556 2088 l ZZZZZ =00085 11 15 142 568 2133 l ZZZZZ 00086 12 15 144 576 2163 l ZZZZZ 00087 13 15 137 548 2058 l l ZZZZZ 00088 14 15 164 656 ' 2464 l '

ZZZZZ 00089 15 15 148 592 2223 l ZZZZZ 00090 16 15 128 512 1923 ; j

• Flsg is set at 3000 dpm/100 sq. cm. for total surface activity. M021100 ,

Dr &&

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i

(- i l Gui.,./ D:ts: 8/23/96 Report D2ts: 8/23/96 Station: 3 l -- - .............-................ '........

, Files-1155L P:gi 2 l Comments

! l l ...............................................................................l i ' L7 Code . L8 Code Count Gross Net beta l Location Sanple Time Gross CPM per DPM per. H l

l. Grid ID Number Nunber (sec) Counts Det Area 100 cm2 I l l

• • Survey Unit Code L1: F0015 L2: 8Z001 L3: szR01 l Analysis Code L4: 02201 L5: FLDCT L6: 80048 l Dstector Setup: 1 l ]

I l

ZZZZZ 00091 17 15 141 564 2118 l l ZZZZZ 00092 18 15 136 544 2043 l ZZZZZ 00093 19  : 15 123 .

492 1848 l ZZZ22 00094 20 15 110 440 1653 l <

' ' ZZZZZ 00095 21 15 151 604 2269 -l ZZZZZ 00096 22 15 137 548 2058 l i ZZZZZ 00097 23 15 143 572 2148 l I ZZZZZ 00098 24 15 110 440 1653 l l ZZZZZ 00099. 25 15 125 500 1878 l ZZZZZ 00100 26 15 118 472 1773 l ZZZZZ 00101 27 15 142 568 2133 l ZZZZZ 00102 28 15 164 656 2464 l ZZZZZ 00103 29 15 149 596 2238 l ZZZZZ 00104 30 15 128 512 '1723 l ZZZZZ 00105 31 15 145 580 2178 l ZZZZZ 00104 32 15 155 620 2329 l ZZZZZ 00107 33 15 127 508 1908 l ZZZZZ 00108 34 15 169 676 2539 l ZZZZZ 00109 35 15 157 628 2359 l Number of Measurements: 30 Average: 2087 .l Avere.ge epn per det. area: 556 l l

l

... Survey unit Code: L1: ZZZZZ L2: SC935 L3: ZZZZZ l An: Lysis Code: L4: 02201 LS: PTB01 L6: ZZZZZ l Dstector Setup: - 1 l l l

. l 00000 37 60 1349

• ZZZZZ 1349 5067 l ttaber of Measurements: 1 Averages 5067 l-Average epm per det, area: 1349 l l

1 Surysy Unit Code: L1: ZZZZZ L2: SC935 L3: ZZZZZ l Analysis Codes .L4: 02201 L5: PTB02 L6: ZZZZZ l Dstictor Setup: 1 l

l  :

ZZZZZ -00000 38 60 1430 1430 5371

• l l l Nunber of Measurements: 1 Average 5371 l l

. Average epm per det. area: 1430 l l

, I  !

l i i  !

i t ,

l. 1

• FLtg is set at 3000 dpm/100 sq. em. for total surface activity. M021100

^

I

. 97 :

_ ~. . ~.- . - - ~ . - . . . _ . . . - . ~ . - - . _ . -. _ - -...

i

) Su, .y D:ts: 8/23/96 Report osts: 8/23/96 section: 3 l.....-..-.............................. '........ ;

File

1455 PagB: 3 l Conenents I l

l

," j

..........................................,....................................l L7 Code L8 Code Count Gross Net beta l

. Location Sarnple Time Gross CPM per DPM per M l 4 6 i Grid ID Number, Number (sec) Counts Det Area 100 cm2 i l l j ........ .......... ...... ...... ....... ........ ........ .

l

....SurvIy Unit Code: L1: ZZZZZ L2: SC935 L3: ZZZZZ l

} Analysis Codes- L4: 02201 L5: PTB03 L6: ZZZZZ l j D:tector Setups: 1 l I i

-ZZZZZ 00000 39 60 1363 1363 5119

• l j Ntsuber of Measurements: 1 Average: 5119 l Average epm per det area: 1363 l l

I ,

...-Suryly Unit code: L1: 22222 . L2: 'c935

, L3: ZZZZZ l 1 Analysis Code: L4: 02201 LS: PTBBK L6: ZZZZZ l D2ttetor Setup: 1 l

l

ZZZZZ 00000 36 60 428 428 1608 l  ;

Ntsnber of Measurements: 1 Average: 1608 l 1

Average epm per det. area: 428 l l

) I

...............................................................................i TSt:L Ntsnber of Measurements on this Reports 40 l End af R: port l Survey P3rformed By: ' o IA a s1 I d' / # .,

[aD Date: T) ".2 [o'N Print Name Signature Surysy Riviewed By: n.< os FM<he Print Name i 0h~u- Slg%ture oste: T4%

01559:C:\PDOX35\M2350\TLOGRE W:R3 4 23 93 JPA 9-12 95 GWE 1 17-96 GWE 7 25 95 MRM 10-27 95 GWE 9

• Fire is set at 3000 dpm/100 sq. cm. for total surface activity. M021100 98

Sci ^ntific Ectgy Grsup, Inc - SEG '

Radiological Engineering & Decommissioning Services Fort St. Vrain - Decommissioning Survey Report Radiochemistry Laboratory Analysis Results Analysis Date :8/23/96 Report Date: 8/23/96 SCN :236.00 Activity (dpm) : 2.41 e+4 Instrument :LB-5100W Serial Number : UNIT 2 Cal Due Date 2/6/97 Efficiency : 43.4 %

S:mpla Count length:1.0 min Background Count Length : 1.0 min Background (cpm): 7.4 F0015 BZ00182G 0100000 LAB 03 B 004877777 Analysis : Beta Sampled By : AFD2805 S' mpb Number Smear Location Code cpm Area Activity MDA Critical Level Error High Flag (cm2) (dpm) (dpm) (dpm) (dpm) 26.69821 79 N/A 60.0 100 121.1 35.4 14.6 2 37.0 High Flags Non) lR~diochemistry Analysis By: ywG l Date: P )2a 9C Eadi' chemistry Review By- jF ' DateL.((dI- .[

Tcchnician Review By: ,g ) Date:jfd ; ."& .

[ Field Operation Coordinator Review By: c p} } Date: ?/ilTF j Page 1 of 1

^'

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l l

4 Sci:Intific Eccicgy Grcup, Inc - SEG l

, Radiological Engineering & Decommissioning Services

Fort St. Vrain - Decommissioning Survey Report j Radiochemistry Laboratory Analysis Results i l

! AndysisDate:8/23/96 Report Date: 8/23/96 SCN :236.00 Activity (dpm): 2.41e+4 l

! Instrum2nt:LB-5100W Serial Number : UNIT 2 Cal Due Date 2/6/97 Efficiency : 43.4 %

l

! Simpla Count Length:1.0 min Background Count Length :1.0 min Background (cpm): 7.4 i

! F0015BZ001BZR0100000 LAB 03B004877777 Analysis : Beta Samplod By : AFD2805 1

l Simpla Number Smear Location Code cpm Area Activity MDA Critical Level Error High Flag i (cm2) (dpm) (dpm) (dpm) (dpm)

{

j 26.69890 80 N/A 11.0 100 35.4 14.6 19.4 8.3 l 26.69891 81 N/A 4.0 100 -7.8 35.4 14.6 i 15.2 26.69892 82 N/A 11.0 100 35.4 14.6 t 19.4 8.3 l l 26.69893 83 N/A 11.0 100 8.3 35.4 14.6 2 19.4

}

i 26.69894 84 N/A 16.0 100 19.8 35.4 14.6

• 21.8 26.69895 85 N/A 8.0 100 1.4 35.4 14.6 t 17.7 l l 26.69896 80 N/A 11.0 100 8.3 35.4 14.6 19.4 k 26.69897 87 N/A 10.0 100 6.0 35.4 14.6 2 18.8 l

3 26.69898 88 N/A 11.0 100 8.3 35.4 14.6 i 19.4 26.69899 89 N/A 9.0 100 3.7 35.4 14.6 t 18.3 4

26.69900 90 N/A 8.0 100 1.4 35.4 14.6 t 17.7

, 26.69901 91 N/A 8.0 100 1.4 35.4 14.6 17.7 4

26.69902 92 N/A 8.0 100 1.4 35.4 14.6 i 17.7

{ 26.69903 93 N/A 9.0 100 3.7 35.4 14.6 i 18.3 26.S9904 94 N/A 11.0 100 8.3 35.4 14.6 2 19.4 26.69905 95 N/A 4.0 100 -7.8 35.4 14.6 i 15.2 l

26.69906 96

) N/A 8.0 100 1.4 35.4 14.6 t 17.7

! 26.69907 97 N/A 9.0 100 14.6 18.3 35.4 i 3.7 l 26.69908 98 N/A 10.0 100 6.0 35.4 14.6 t 18.8

26.69909 99 N/A 2.0 100 -12.4 , 35.4 14.6 t 13.8 j 26.69910 ~100 N/A 10.0 100 6.0 , 35.4 14.6 2 18.8 i

j 26.69911 101 N/A 8.0 100 1.4 35.4 14.6 t 17.7

! -26.69912 102 N/A 4.0 100 -7.8 35.4 14.6 2 15.2 26.69913 103 N/A 10.0 100 6.0 , 35.4 14.6 18.8 26.69914 104 N/A 12.0 100 10.6, 35.4 14.6 2 19.9 j 26.69915 105 N/A 12.0 100 35.4 14.6 2 19.9 10.6 l 26.69916 106 N/A 9.0 100 35.4 14.6 t 18.3 l 3.7 j 1

Page 1 of 2 9

! 100 i . - - . . . .

An:Jysis Data :8/23/96 R; port Dit2: 8/23/96 SCN :236.00 Activity (dpm) : 2.41 e+4

nirum:nt :LB-5100W Serial Number : UNIT 2 Cal Due Date 2/6/97 Efficiency : 43.4 %

S:mpl3 Count Length: 1.0 min Background Count Length :1.0 min Background (cpm): 7.4 F0015BZ001BZR0100000 LAB 038004877777 Analysis : Beta Sampled By : AFD2805 S'mpl] Number Smear Location Code cpm Area Activity MDA Critical Level Error High Flag (cm2) (dpm) (dpm) (dpm) (dpm) 26.69917 107 N/A 2.0 100 35.4 14.6 t 13.8

-12.4 l 26.69918 108 N/A 4.0 100 35.4 14.6 i 15.2

-7.8l 26.69919 109 N/A 4.0 100 -7.8 35.4 14.6 15.2 High Flags Nong lRadioch mistry Analysis By: A l Date: y-2 7- rc l Iiahirchemistry F Review By: YG Uate: 372_((q7 UcISnicirriUeview By: ' ,de#1 Date: <f 20 ') 4

[Fi:Id Operation Coordinator Review By: 'Uate: T/j [j),,,,,,j

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i' Fort St. Vrain Nuclear Generating Station Decommissioning Project Release Record Contents 4

Suncy Arra Survey Area ID: Survey Aira Description Pages F0015 Level 1 Steam / Water Dump Tank Room 2-5 i

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Survey Unit (s)

Location Code Survey Unit Description Pages F0015BZ001BZ Level 1 Steam / Water Dump Tank Room, Lower Walls and Floor 6-31 F0015AS001CZ Level 1 St am/ Water Dump Tank Room, Upper Walls, Ceilmg and Structures / Equipment 32-49 Prepared By: /

SEG Radiological Engineer Date Reviewed By: /

SEG Project Radiation Protection Manager Date Approved By: /

PSCo Radiation Protection Manager Date Page1

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Fort St. Vrain Nuclear Generating Station Decommissioning Project Release Record - Survey Area Survey Area / Package ID: F0015 Survey Area / Package Descripdon: Level 1 Steam / Water Dump Tank Room The Level 1 Steam / Water Dump Tank Room was located in the south central portion of Level 1 of the Reactor Building West. The area consisted of floor, walls, ceiling and structures / equipment.

Major equipment and components included in this Survey Area and systems residing within or traversing Survey Package ID: F0015 included the following:

Equipnent/ Components Systems Tank T-2201, which was associated with None System 22, Secondary Cooling System The floor and lower walls of this area were surveyed as a Suspected Affected Survey Unit. The upper walls, ceiling and structures / equipment were surveyed as a Non-Suspect Affected Survey Unit. The Suspect Affected Survey Unit was gridded into 1 x 1 meter grids. The Non-Suspect Affected Survey Unit was not gridded. Measurement locations were labeled on the floor, walls, ceiling and structures / equipment.

The Survey Package was comprised of two distinct Survey Units. These Survey Units were identified as follows:

Locadon Code Classification / Surface Category Survey Medium Description Suspect Affected Lower Walls and Bare Interior Concrete F0015BZ001BZ Floor Enamel Paint over Concrete F0015AS001CZ Non-Suspect Affected Upper Walls, Enamel Paint over Concrete Ceiling and Structures / Equipment Generic Material Page 2

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Survey Ana Operational fliston: -

3 The Level 1 Steam / Water Dump Tank Room and included equipment were in operation prior to August 18,1989. The area housed Tank T-2201, which was used to collect steam and water from System 22 in the event of a secondary to primary leak to prevent overpressurization of the l PCRV. An event such as this never occurred. However, the system was occasionally used to drain steam and water from the steam manifold for various repairs and maintenance.  !

Survey Ama Deconunissioning and Remediation Activities:

Initial conditions in this Survey Area included very dusty and dirty surfaces and plywood nailed to the floor in the northwest corner of the room. No radioactive material was stored in the room.

Initial scans of the Survey Area identified total surface activity to 5,000 dpm/100 cm2 in 3

, locations on the floor. No elevated activity was initially. detected on scans of the walls. '

Tritium smears collected on interior surfaces of Tank T2201 failed to identify tritium levels above the minimum detectable activity (MDA). Ilowever, a sludge sample collected from the l

tank interior identified cobalt-60 at 1.6 E-7 pCi/ gram. As a result of the cobalt-60 identification, all sludge was removed from the tank interior. Scan surveys of the tank interior following the sludge removal indicated total surface activity measurements were less than 3,000 dpm/100 cm2 As a result of general decontamination and housekeeping measures employed in the T2201 Tank Room, the elevated activity was eliminated. General decontamination measures included the following:

Mopping the floor for general housekeeping purposes. l Wipedown of dirty surfaces.

Removal of plywood from the northwest corner of the floor.

Removal of the tank manway cover and bolts.

Removal of miscellaneous debris and scaffolding.

In addition, the two sealed radioactive sources in Area P.adiation Monitors (ARMS) were removed in accordance with Decontamination Instmetion DI-010.

The ventilation registers were smeared, but no removable surface activity greater than 375 dpm/100 cm2 was identified. No scans were performed on the upper walls due to the lack of activity identified on the lower walls. However, all smears taken in the overhead of the room were also less than 375 dpm/100 cm2 removable surface activity.

Page 3

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Isolation and Contml Measturs: Level 2 Controls i

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i Prior to the final survey of Group F Survey Areas, training sessions were held with site assigned personnel regarding final survey isolation and control measures.

No use, storage or movement of radioactive material was permitted in this Survey Area after initiation of final survey measurements without authorization from the Technical Project Supervisor (TPS) and the Final Survey Lead Engineer (FSLE). Radioactive material moved to this area was not permitted to have removable surface activity in excess of 250 dpm/100 cm2 .

l l

The configuration of the Level 1 Steam / Water Dump Tank Room during final survey activities was as follows:

l

1. The manway cover and bolts were removed from T-2201 Tank,

2. The pipe chase access to the room was roped and posted, and

3. The access to the room was covered with green herculite and posted for isolation control.

The above described configuration was the final configuration at completion of final survey measurements. Configuration changes, subsequent to completion of final surveys, required notification of the Technical Project Supervisor (TPS) and the Final Survey Operations Supervisor (FSOS) and the approval of PSCo.

For instances where remediation of Plant Systems and/or Penetrations was performed subsequent to final survey of the Surfaces and Structures within a Survey Area, the final radiological condition of the Survey Area has been referenced in the respective Final Report for the Plant System or Penetration.

Survey Area

Conclusions:

The results of total and removable surface activity measurements and exposure rate measurements collected within this Survey Area meet the criteria for release for unrestricted use.

Survey Area

References:

FSV Decommissioning Project Initial Radiological Site Characterization Report - Volume 3.

Isolation Report IR-008.

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Radiological Engineering & Decommissioning Services gg Fort St. Vrain Nuclear Generating Station Decommissioning Project Release Record - Survey Unit Location Code: F0015BZ001BZ Gmup ID: Stuvey Area Nmnber Stuface Category Suncy Unit Classification BZ001 F 0015 BZ (Lower Walls and pyggg (Suspect Affected)

Survey Reason: T01 - Initial Final Release ROI - Remediation 3 Survey Unit Descriptiom Level 1 Steam / Water Dump Tank Room, Lower Walls and Floor Survey Unit Medium: Bare Interior Concrete, Enamel Paint over Concrete Survey Unit Decommissioning and Remediation Activities:

4 No decommissioning or remediation activities were conducted in this Survey Unit subsequent to initiation of final surveys. See Survey Area Decommissioning and Remediation Activities Section of this release record for activities performed prior to initiation of final surveys.

Survey Desigm Measmtment Type No. of Measurements Description

1. 1. U"# # #### # "" "'

Beta Scan N/A One area of elevated activity was identified.

d 108 Initially collected 78 total surface activity measurements at grid intersections.

Collected I total activity measurement at the area of elevated activity identified during the scan.

gg Collected an investigation measurement at the same Acu. .vny location to confirm the elevated measurement.

After remediation, collected 30 total surface activity measurements uniformly distributed around the remediated area. Deleted the 2 measurements collected at the area of elevated activity before the remediation.

Collected exposure rate measurements with the Exposure Rate 8 MicroSpec at I meter from locations marked for exposure rate measurements.

py Smears 108 Collected smears at the same survey measurement locations as the total surface activity measurements.

Page 6

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4_4 Survey Unit hwestigationsi

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Investigation No. 2 8/22/%

The results' of the. Initial survey for survey unit F0015BZ0018ZT01 indicated one survey measurement location (SML) with elevated results. The results at SML 114 exceeded the guideline value for total surface activity.

SML 114 (Download 2

1266-3. sample number 26) had a net total activity of approximately 9,000 2

dpm/100 cm and a net removable activity of 3.1 dpm/100 cm . SML 114 was identined during the Initial 100% scan survey, and was collected in addition to the initially prescribed 78 measurements. SML 114 was located on the floor.

No other SMLs indicated activity greater than the action levels.

SML 79 in download 1450 was collected at the same location as SML 114 to investigate the elevated activity identined during the scan survey. Total surface activity at SML 79 was calculated as 7,921 dpm/100 cm2 after accounting for the field and medium backgrounds. This elevated activity confirmed the previous measurement collected at SML 114 in download 1266.

Remediation measures were applied to the area of elevated activity and a remediation survey performed following the cleanup. The remediation survey required performance of a 100% scan .

survey within the vicinity of the elevated measurement and the collection of 30 total and removable surface activity measurements from the surfaces encompassing the location of the elevated measurement identified during the initial Final Survey.

SMLs80-109 were collected in the remediated area, with SML 80 taken at the same location as the initial elevated measurements collected at SMLs 114 and 79. The total surface activity measurement collected within download 1455-3 at SML 80 was 596 dpm/100 cm2 with a removable surface activity less than the minimum detectable activity (MDA).

The 30 total and removable surface activity measurements collected for the remediation survey confirmed that the remediation was successful. Based on the results of the Remediation Survey, the following actions were taken:

The initial total and removable surface activity measurement results for SMLs 114 and 79, collected in downloads 1266-3 and 1450-3, were deleted from the measurement database and were not used for reporting purposes.

The 30 remediation total and removable surface activity measurement results for SMLs80-109, collected in download 1455-3, were added to the measurement database and were used for reporting purposes.

No further actions were required.

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4 Compilation of Statistical Summaries r== 4 .P.'

Total Surface Activity - Beta Survey l. '

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Exposure Rate - Gamma Survey r..::::.:::rm-i ')<

a Removable Surface Activity - Beta Survey .

t Location Code: F0015BZ001BZ Medium Codes: B0002, B0048, G9999 Comments: Total Surface Activity (TSA) reported in Net dpm/100 cm2 Exposure Rate (ER) reported in Net pR/hr.

Minimum Detectable Activity and Critical Level not calculated for exposure rate.

i Removable Surface Activity (RSA) reported in Net dpm/100 cm2 TSA ER RSA Upper Confidence Limit (UCL) 137.5 3.1 6.7 Mean 94.4 2.7 4.1 l

Maximum 806.2 3.3 154.8 Minimum -361.2 1.5 -12.4 Standard Deviation 268.2 0.6 16.1 Minimum Detectable Activity 658.8 N/A 35.4 Critical Level 309.2 N/A 14.6 Samples Reported 108 8 108 Samples Prescribed 78 8 78 Page 1: ERGS:V2.11.1.a.9.6.96 Page 12

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Statistical Summary Total Surface Activity - Beta Survey gg

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Location Code: F0015BZ001BZ Survey Reasons: R01 - Remediation T01 - Initial Final Release Aledium Codes: B0002. B0048 Net dpm/100 cm2 l Upper Confidence Limit (UCL) 137.5 l lhiean 94.4 l l Ataximum 806.2 l l hiinimum -

361.2 l l Standard Deviation 268.2 l l hiinimum Detectable Activity 658.8 l l Critical Level 309.2 l l Samples Reported 108l l Samples Prescribed 78 l Tests Performed l Samples Reported greater than or equal to Samples Prescribed YES l Passed l AIDA < 2,000.0 dpm/100 cm2 YES l Passed l Percent of Samples > 3,000.0 dpm/100 cm2 0.0 l. Passed (3) l Number of Samples > 4,000.0 dpm/100 cm2 0 l Passed (4) l UCL of hiean less than or equal 4,000.0 dpm/100 cm2 YES l Passed (3) 10% Test (4) Single hieasurement Test Page 1:TSABS:V2.11.1.a.9.6.96 Page 13

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Corrected Field Activity Values "" #

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Total Surface Activity - Beta Survey r s m - a- 8

. - Location Code: F0015BZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3,000.0 dpm/100 cm2. Italic values exceed 4,000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the

{ prescribed, an asterisk indicates a count time less than 15 seconds, hiedium Download # - Location # Activity Reason Code Station # Code i B0002 1266-3 1 154.6 T01 2 229.0 l 3 -187.8 4 169.4 5 -68.7 6 -277.1 i

! B0048 7 160.9 8 309 8 l 9 294 9 10 324.7

, 11 101.4

12 399 1 13 160.9

' 14 131.2 15 -32.6 16 -62.3 S

17 116.3 18 27.0 19 -92.1 1275-3 20 442.4 21 237.9 22 -39.8 1 23 18.7 24 47.9 25 427 8 26 179.4 i

27 150.2 28 91.8 29 47.9 30 442 4 4

31 -142.0 32 164.8 1

33 -54.4 34 18.7 35 33.3 i 36 179.4 Page 2:TSABS:V2.11.1.a.9.6.96

' Page 14 .

1 L

Corrected Field Activity Values Total Surface Activity - Beta Survey -b g.g=b55

.ig; Location Code: F0015BZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3,000.0 dpm/100 cm2 Italic values exceed 4.000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the

prescribed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity 1

Code Reason Station #

Code i B0048 1275-3 37 150.2 T01 j 38 252.5 39 -273.5 4 40 106.4

, 41 -185.9 42 -10.5 43 77.1 44 -332.0 45 -361.2 46 -346.6 l

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49 179.4  ;

50 -10.5 l 51 -10.5 52 77.1 53 -171.3 54 -258.9 55 -229.7 56 -229.7 57 -98.2 58 -273.5 59 33.3 60 -346.6 61 4.1 62 -185.9 63 -215.1 64 -244.3 65 -200.5 66 -112.8 67 47.9 68 -25.1 69 -258 9 70 77.1 71 91.8 72 4.1 73 -273.5 74 -273.5 75 -112.8 76 47.9 Page 3:TSABS:V2.11.1.a.9.6.96 Page 15

Corrected Field Activity Values 1' Il Total Surface Activity - Beta Survey E @ @

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. .... . . ._w Location Code: F0015BZ001BZ i Comnients: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3,000.0 dpm/100 cm2, Italic values exceed 4,000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity Code Reason Station # '

Code B0048 1275-3 77 -185.9 T01 78 -200.5 1455-3 80 ._JiH53 RO1 81 505.7 82 145.2 83 -140.3 84 355 5 -

l 85 400 6 86 430.6 "

87 325 4 88 731.1 89 490 7 90 190.2 l 91 385 5 92 310 4 93 115.1 94 -80.2 95 _5153 96 325 4 97 415 6 98 -80.2 99 145.2 100 40.0 101 400.6 102 731.1 103 505 7 104 190.2 105 445fi 106 _5253 107 175 2 108 806 2 109 625 9 Page 4:TSABS:V2.11.1.a.9.6.96 Page 16

1 1

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I 6 Graph of Activity versus Location Number -

4 Total Surface Activity - Beta Survey ,;

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1 Location Code: F0015BZ001BZ i

j Survey Reasons: R01 - Remediation, T01 - Initial Final Release i

5 Medium Codes: B0002,B0048 e

i Average Guideline Value i 4000.0 dpm/100 cm8 4000 - - - - - :mm+~~: -

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Page 5:TSABS:V2.11.1.a.9.6.96 Page 17

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t Summary of Background Correction Values ~==

,.F3 l3 g Total Surface Activity - Beta Survey . g i@_

4 Location Code: F0015BZ0018Z Survey Reasons: R01 - Remediation, T01 - Initial Final Release l

1 Comments: Field Background (Bkg) reported in cpm / detector area. l Medium Bkg reported in dpm/100 cm2 i

Field Bkg averaged over all reported Field Bkg samples for each medium surveyed.

i Field Bkg Count time averaged over all reported samples for each medium surveyed.

i l Download # Medium Count Field Medium

-Station # Code Time Bkg Bkg 1266-3 B0002 60.0 304.3 767.0 1266-3 B0048 60.0 324.0 360.0

1275-3 B0048 60.0 316.3 360.0 l 1455 3 B0048 60.0 365.5 3 360.0 1 i

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4 Page 6:TSABS:V2.11.1.a.9.6.96 Page 18

1 Summary of hiinimum Detectable Activity (h1DA) -

Total Surface Activity - Beta Survey W M IS Location Code: F0015BZ001BZ i

Survey Reasons: ROI - Remediation, T01 - Initial Final Release i

Comments: The Statisical Summary page includes the maximum blDA and associated critical level shown below to demonstrate compliance with FSV requirements for minimum detection sensitivity.

NIDA and Critical Level reported in dpm/100 cm2 Count Time averaged over all reported samples for each medium surveyed.

Download # 51edium Count Critical

-Station # MDA Code Time Level 1266-3 B0002 15.0 309.2 1455-3 658.8 80048 15.0 296.7 1266-3 634.2 B0048 15.0 280.7 601.8 1275-3 80048 15.0 273.7 587.0 l

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I Page 7:TSABS:V2.I1.1.a.9.6.96 Page 19

I Summary of Efficiency Values -

Total Surface Activity - Beta Survey l553M j,.2 ...._3gg Location Code: F0015BZ001BZ Survey Reasons: ROI - Remediation. T01 - Initial Final Release l

Comments:

4 Detector Detector Download # Efficiency Model Serial Number -Station #

l LMI 43-106B PR128921 1266-3 0.215 LMI 43-106B PR128921 1275-3 0.219 LMI 43-106B PR126902 1455-3 0.213 l

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Page 8:TSABS:V2.11.1.a.9.6.96 Page 20

r Survey Detection Equipment Used -

Total Surface Activity - Beta Survey

.c _ _ _ _ _  ;

Location Code: F0015BZ001BZ Survey Reasons: R01 - Remediation, T01 - Initial Final Release hiedium Codes: B0002 B0048 1

Download # - Survey User ID A12350 S/N Detector Station Id S/N 1266-3 CJG1226/126188 126188 PR128921 I 1275-3 CJG1226/126188 126188 PR128921 I i 1455-3 AFD2805/126201 126201 PR126902 l

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Program Version: V2.11.1.a.9.6.96 Report Printed At: 10:18:36 AM on 09/09/96 l Total Pages: 9 Page 9:TSABS:V2.I1.1.a.9.6.96 Page 21

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Statistical Summary -

Exposure Rate - Gamma Survey E

. .r.==.% s l

Location Code: F0015BZ0018Z l

Survey Reason: T01 - Initial Final Release l hiedium Code: G9999

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l Net pR!hr l Upper Confidence Limit (UCL) 3.1 l l Mean 2.7 l l l Maximum 3.3 l l l Minimum 1.5 l l l Standard Deviation 0.6 l l Samples Reported 8l l Samples Prescribed 8l Tests Performed l l Samples Reported greater than or equal to Samples Prescribed YES l Passed Counting interval greater than or equal to 300.0 seconds YES l Passed l Number of Samples > 5.0 R/hr 0 l Passed (7) l Number of Samples > 10.0 R/hr 0 l Passed (8) l UCL of Mean less than or equal 5.0 pR/hr YES l Passed I

(7) Single Measurement Test (8) Single Measurement Test t

Page 1: ERGS:V2.11.1.a.9.6.96 Page 22

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Corrected Field Exposure Rate Values -

Exposure Rate - Gamma Survey [$@[35a

.c -....,_

Location Code: F0015BZ0018Z I l

l Comments: Exposure rare reported in Net gR/hr. l

,' Bold values exceed 5.0 pR/hr, Italic values exceed 10.0 pR/hr.

i Location #: Bold italics indicate surveyor identi6ed elevated readings in addition to the prescribed, an asterisk indicates a count time less than 300 seconds.

4 Medium Download # - Location # Exposure Rate Code Reason l Record Id Code G9999 l i F015801.001 -419 1 3.0 T01 F015801.002 -419 4

2 2.2 I F015B01.003 -419 3 3.3

F015B01.004 -419 4

• 3,0 F015801.005 -419 5 1.5 F015B01.006 -419 6 2.6 F015801.007 -419 7 3.0 F015801.008 -419 8 3.3 i

I Page 2: ERGS:V2.11.1.a.9.6.96 Page 23

.t 4

i Graph of Exposure Rate versus Location Number -

Exposure Rate - Gamma Survey lEE@f5 4

! .. o _L _..I j Location Code: F0015BZ001BZ Survey Reason: T01 - Initial Final Release  ;

i Medium Code: G9999 i ,

'. l d

4 Average Guideline Value 4

5.0 pR/hr i 15 4

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i 1

4 to- ----------------- ----------------------------------*-------------*-~~

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i 1 2 3 4 5 6 7 8 Location Number

-+-- Average Guideline Value -.- Exposure Rate Page 3: ERGS.V2.11.1.a.9.6.96 Page 24

.- ... - . - _ _ = - . . -

!l 1

Survey Detection Equipment Used Exposure Rate - Gamma Survey -Ed@@

g.g =,_ _

Location Code: F0015BZ001BZ Survey Reason: T01 - Initial Final Release Medium Code: G9999 i

Record Id Survey User ID Detector l S/N 419 SEB9534 96012 1

1 Program Version: V2.11.1.a.9.6.96 Report Printed At: 10:26:58 AM on 09/09/96 l

Total Pages: 4 l

Page 4: ERGS:V2.11.1.a.9.6.96 l Page 25

S Statistical Summary Removable Surface Activity - Beta Survey gg r, = a -

3 Location Code: F0015BZ001BZ Survey Reasons: R01 - Remediation. T01 - Initial Final Release Medium Codes: B0002, B0048 Net dpm/100 cm2 l Upper Confidence Limit (UCL) 6.7 l l Mean 4,1 l l Maximum 154.8 l l Minimum -12.4 l l Standard Deviation 16.1 l l Minimum Detectable Activity 35.4 l l Critical Level 14.6 l l

l Samples Reported 108 l l Sampies Prescribed 78l Tests Performed l Samples Reported greater than or equal to Samples Prescribed YES l Passed l MDA < 187.5 dpm/100 cm2 YES l Passed

[ Percent of Samples > 562.5 dpm/100 cm 2 0.0 l Passed (3) l Number of Samples > 750.0 dpm/100 cm2 0 l Passed (4) l UCL of Mean less than or equal 750.0 dpm/100 cm2 YES l Passed ,

(3) 10% Test (4) Single Measurement Test 1

1 Page 1:RSABS:V2.11.1.a.9.6.96 Page 26

l Corrected Field Activity Values -

Removable Surface Activity - Beta Survey g.g$.. W?3 .

{

Location Code: F0015BZ001BZ Conunents: Activity reported in Net dpm/100 cm2 Underlined values exceed the criticallevel.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 Medium RC# Location # Activity Reason Code Code B0002 26.63970 1 0.9 T01 26.63971 2 -1.3 1 26.63972 3 0.9 26.63973 4 3.1 26 63974 5 -3.5 26.63975 6 3.1 i

i i

1 B0048 26.64001 7 3.1 26.64002  !

8 0.9 1 26.64003 9 7.5 26.64004 10 14 1-26.64005 11 3.1 26.64006 12 5.3 26.64007 13 7.5 26.64008 14 5.3 26.64009 15 5.3 26.64010 16 -5.7 l 1

26.64011 17 3.1 26.64012 18 3.1 26.64013 19 7.5 26.64014 20 -10.1 I 26.64015 21 11.9 26.64016 22 3.1 26.64017 23 10 3 ,

26.64018 24 33 9 26.64019 25 -1.3 i 26.64020 26 5.3 1 26.64021 27 9.7 26.64022 28 5.3 26.64023 29 0.9 26.64024 30 20.7 26.64025 31 7.5 26.64026 32 0.9 26.64027 33 3.1 26.64028 34 -1.3 -

26.64029 35 -3.5 26.64030 36 0.9 Page 2:RSABS:V2.11.1.a.9.6.96 Page 27

il l

4 Corrected Field Activity Values -

Removable Surface Activity - Beta Survey lE = M f5i g.p g_;

4 Location Code: F0015BZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 1 Medium RC# Location # Activity Reason Code Code B0048 1

26.64031 37 14 1 T01 26.64032 38 -3.5 26.64033 39 -1.3 26.64034 40 5.3 26.64035 41 5.3 i 26.64036 42 -3.5 1 26.64037 43 7.5 26.64038 44 0.9  !

26.64039 45 -3.5 1 26.64040 46 5.3 l 1

26.64041 47 0.9 26.64042 48 -5.7 4

j 26.64043 )

49 5.3 j

26.64044 50 -3.5 j j 26.64045 51 0.9 l 26.64046 52 -5.7  !

26.64047 53 -1.3  !

26.64048 54 -1.3 26.64049 55 0.9 i 26.64050 56 -1.3 26.64051 57 -1.3 26.64052 58 3.1 26.64053 59 3.1

'. 26.64054 60 -3.5 26.64055 61 3.1 3

26.64056 62 -1.3 i' 4

26.64057 63 3.1 26.64058 64 3.1 26.64059 65 0.9 26.64060 66 14.1 26.64061 67 -3.5 26.64062 68 -1.3 26 64063 69 5.3 26.64064 70 5.3 26.64065 71 -1.3 26.64066 '

, '72 3.1 26.64067 73 5.3 26.64068 74 53 26.64069 75 -3.5 26.64070 76 -1.3 Page 3:RSABS:V2.11.1.a.9.6.96 Page 28

l P

Corrected Field Activity Values -

Removable Surface Activity - Beta Survey Edm @ {5$

g.g.

Location Code: F0015BZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level. i Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 Medium RC# Location # Activity Code Reason Code l B0048 26.64071 77 -1.3 T01 '

26.64072 78 154 8 26.69890 80 8.3 R01

l. 26.69891 26.69892 81 -7.8 l

82 8.3 26.69893 83 8.3  ;

26.69894 84 '

19 6 26 69895 85 1.4 26 69896 86 8.3 26.69897 87 6.0 l i

26.69898 88 8.3 26.69899 89 3.7 '

26.69900 90 1.4 26.69901 91 1.4 26.69902 - 92 1.4 26.69903 93 3.7 i

26.69904 l 94 8.3  ;

26.69905 95 -7.8 26.69906 96 1.4 l 26.69907 97 3.7 26.69908 98 6.0 26.69909 99 -12.4 26.69910 100 6.0 26.69911 101 1.4 26.69912 102 -7.8 26.69913 103 60 26.69914 104 10.6 26.69915 105 10 6 26.69916 106 37 26.69917 107 -12.4 26.69918 108 -7.8 26.69919 109 -7.8 i

Page 4:RSABS:V2.11.1.a.9.6.96 Page 29

i Graph of Activity versus Location Number 8 Removable Surface Activity - Beta Survey I

-Fu

..~;M il Location Code: F0015BZ001BZ Survey Reasons: ROI - Remediation, T01 - Initial Final Release Medium Codes: B0002, B0048 Guideline Value 750 0 dpm/100 cm2 800 -

700 ----- ---.-------------- --------- - - - .- -

600- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - . - - - - - - - - - - - - - - - - . - - - . - .

500- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - . - - - - - - - - - - - - - - - - - - - - - .

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S g400- ---------------------------------------------- ----.-----------------

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1 300- ----------------.------------------------ - - ----- -

z 200- -------------------------------------- --- ----- --- ---- -----

T 100-------------------------------------------- k------- -- ----- -----

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0 20 40 60 80 100 120 Location Number

-- -- Critical Level --.-- M D A -+- Guideline Value -. - Activity Page 5:RSABS:V2.I1.1.a.9.6.96 Page 30

i l

.t l

Laboratory Equipment Used -

Removable Surface Activity - Beta Survey IO$f5fM 7 2 a. ,_

Location Code: F0015BZ0018Z 1

l Survey Reasons: R01 - Remediation, T01 - Initial Final Release Medium Codes: B0002, B0048 Location # Range Survey User ID Laboratory Serial Equipment Number  !

80.00 AFD2805 LB-5100W UNIT 2 1.00 CJG1226 LB-5100W UNIT 2 l Program Version: V2.11.1.a.9.6.96 Report Printed At: 10:25:12 AM on 09/09/96 ,

Total Pages: 6 Page 6:RSABS:V2.11.1.a.9.6.96 Page 31

l t

'i .

Scientific Ecalogy Gruup, Inc.

Radiological' Engineering & Decommissioning Services ggg

~ ~ ~ ~ '

Fort St. Vrain Nuclear Generating Station Decommissioning Project 2

Release Recortl- Stuvey Unit i l

Location Code: F0015AS001CZ Group ID: Survey Package Ntunber Surface Category Suney Unit Classification AS001 F 0015 (upper Walls, Ceiling CZ and l

(Non-Suspect Affected) '

Structures / Equipment)

Survey Reason: T01 - Initial Final Release Survey Unit

Description:

Level 1 Steam / Water Dump Tank Room, Upper Walls, Ceiling and Structures / Equipment Survey Unit Medium: Enamel Paint over Concrete, Generic Material Survey Unit Decommissioning and Remediation Activities:

~

No decommissioning or remediation activities were conducted in this Survey Unit subsequent to initiation of final surveys. See Survey Area Decommissioning and Remediation Activities Section of this release record for activities performed prior to initiation of final surveys. i Suney Design:

Measurement Type No. of Measurements Descripion Scanned at least I square meter at each total surface activity measurement location, selecting locations Beta Scan N/A from those surfaces with the highest contamination potential.

No areas of elevated activity were identified.

Total Surface 35 Collected total surface activity measurements within Activity each previously scanned square meter.

py Smears 35 Collected smears at the same survey measurement locations as the total surface activity measurements.

Page 32

I 4!

Survey Unit Investigations:' '

Investigation No.1 8/20/96 The survey instnictions which were written for location code F0015AS001CZ erroneously specified the incorrect SML numbers for total and removable surface activity measurements collected for this location code.

The survey instructions for location code F0015AS001CZ specified survey measurement locations (SMLs) which were numbered from 79-113 for this location code. The SMLs should have been numbered from 1-35 as the total and removable surface activity measurements collected for F0015AS001CZ constitute a separate survey unit than those measurements 1 numbered 1-78 which were collected for location code F0015BZ001BZ.

SMLs79-113, collected for location code F0015AS001CZ, were renumbered 1-35 in the measurement database. This was performed for both total and removable surface activity measurements. No further actions were required. t l

l l

6 I

Page 33

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Compilation of Statistical Summaries Total Surface Activity - Beta Survey T_][5f5$

Exposure Rate - Gamma Survey v.::::.::.:r a-Removable Surface Activity - Beta Survey Location Code: F0015AS001CZ hiedium Codes: B0048, BMC01 Comments: Total Surface Activity (TSA) reported in Net dpm/100 cm2 Exposure Rate (ER) reported in Net pR/hr.

Minimum Detectable Activity and Critical Level not calculated for exposure rate.

Removable Surface Activity (RSA) reported in Net dpm/100 cm2 TSA ER RSA Upper Confidence Limit (UCL) 30.2 N/A 2.8 hiean -22.0 N/A 1.4 hlaximum 295.4 N/A 18.5 hiinimum -478.0 N/A -5.7 Standard Deviation 183.4 N/A 5.0

! hiinimum Detectable Activity 550.8 N/A 30.0 Critical Level 255.5 N/A 12.0 Samples Reported 35 N/A 35 l Samples Prescribed 35 N/A 35 l

4 l

Page 1: ERGS:V2.11.1.a.9.6.96 Page 38 l

Statistical Summary Total Surface Activity - Beta Survey __

7.,

Location Code: F0015AS001CZ Survey Reason: T01 - Initial Final Release hiedium Codes: B0048. BMC01 Net dpm/100 cm2 l Upper Confidence Limit (UCL) 30.2 l l lhiean -22.0 l l Maximum 295.4 l l Minimum -478.0 l l Standard Deviation 183.4 l l Minimum Detectable Activity 550.8 l l Critical Level 255.5 l l Samples Reported 35l l Sampies Prescribed 35l Tests Performed l Samples Reported greater than or equal to Samples Prescribed YES l Passed l MDA < 2,000.0 dpm/100 cm2 YES l Passed l

l Percent of Samples > 2,000.0 dpm/100 cm2 0.0 l Passed (3) l Number of Samples > 3,000.0 dpm/100 cm2 0 l Passed (4) l UCL of Mean less than or equal 4,000.0 dpm/100 cm2 YES l Passed (3) 10% Test (4) Single Measurement Test Page 1:TSABS:V2.11.1.a.9.6.96 Page 39

]

Corrected Field Activity Values -

Total Surface Activity - Beta Survey FaiTL5rd  !

.;=._g4 Location Code

F0015AS001CZ Comments: Activity reported in Net dpm/100 cmt.

Underlined values excee<! the critical level.

Bold values exceed 2,000.0 dpm/100 cm2, Italic values exceed 3,000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity Code Reason Station #

Code B0048 1280-3 1 -37.7 T01 2 -67.0 3 226.5 4 50.4 5 -213.8 s 6 138.5 1 7 -8.3  !

8 94.4 i 9 21.0 10 -213.8

{

11 6.4 12 109.1 13 -316.6 14 79.8 15 -478 0 16 138.5 17 197.2 18 21.0 19 -8.3 20 -390.0 BMC01 21 1.8 22 295 4 23 89.9 24 -56.9 25 -12.8 26 16.5 27 -174.3 28 236.7 29 207 3 30 -262.4 31 89.9 32 16.5 33 -115.6 34 -189.0 35 -262.4 Page 2:TSABS:V2.11.1.a.9.6.96 Page 40 1

Graph of Activity versus Location Number -

Total Surface Activity - Beta Survey liliTfdfii.

4 Location Code: F0015AS001CZ Survey Reason: T01 - Initial Final Release i

Medium Codes: B0048, BMC01 d

Average Guideline Value 4000.0 dpm/100 cm' 4000 + < - ~ ~ < - ~ - v--+---~~+ - -

s 3500- ------------ - -

3000- ------------- .--

2500- ----------- ---- -------------- --------- ---------- --------------

'E' 2000- ------------------------ r------------------------------------------

u 8

j1500- -------------------------------------------------- -----------------

e.

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$1000- -------------- -----------

500-- * = - ^ - - ^ -

^

--- =* 2 E 4 3 * - ----=~.-.--.-..._.._--._.._._.._.,_.,_o

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-500-- - - - - - - - - - - - - - - - - - - - - - - - - - - - * - - - - - - - - .------ ----- -- - -----------

-1000 l l l l l l  !

O 5 10 15 20 25 30 35 Locadon Number

-- - Critical Level - - MDA Average Guideline Value -.- Activity Page 3:TSABS:V2.11.1.a.9.6.96 Page 41

, 1 i

Sununary of Background Correc: ion Values Total Surface Activity - Beta Survey -Ed[35

. - . . 1 i

Location Code: F0015AS001CZ j I

Survey Reason: T01 - Initial Final Release  !

i 1

l Comments: Field Background (Bkg) reported in cpm / detector area.

Medium Bkg reported in dpm/100 cm . 1 Field Bkg averaged over all reported Field Bkg samples for each medium surveyed. 1 Field Bkg Count time averaged over all reported samples for each medium surveyed. I Download # Medium Count Field Medium

-Station # Code Time fug Bkg 1280-3 B0048 60.0 260.2 360.0 1280-3 BMC01 60.0 227.5 0.0 f

i 1

i 4

I J

i Page 4:TSABS:V2.11.1.a.9.6.96 Page 42

. m _

Summary of Minimum Detectable Activity (MDA) i ..

Total Surface Activity - Beta Survey -(Ud@l2

.;.gg _g Location Code: F0015AS001CZ Survey Reason: T01 - Initial Final Release i i Comments: The Statisica! Summary page includes the maximum MDA and associated critical level shown l below to demonstrate compliance with FSV requirements for minimum detection sensitivity. l MDA and Critical Level reported in dpm/100 cm2  !

Count Time averaged over all reported samples for each medium surveyed.

Download # Mediurn Count Critical MDA

-Station # Code Time Level 1280-3 80048 15.0 255.5 550.8 1280-3 BMC01 15.0 203.6 447.0 Page 5:TSABS:V2.11.1.a.9.6.96 Page 43

l e a

a.

Summary of Efficiency Values C Total Surface Activity - Beta Survey gg

,,r= r =.,

Location Code: . F0015AS001CZ Survey Reason: T01 - Initial Final Release 1 Comments:

Detector Detector Download # Efilciericy Model Serial Number -Station #

LMI 43-106B PR128921 1280-3 0.218 4

u 1

Page 6:TSABS:V2.11.1.a.9.6.96 Page 44

Survey Detection Equipment Used l=

Total Surface Activity - Beta Survey 1 f..R=$$$

Location Code: F0015AS001CZ Survey Reason: T01 - Initial Final Release Medium Codes: B0048, BMC01 i Download # - Survey User ID M2350 S/N Station Id Detector S/N 1280-3 CJG1226/126188 126188 PR128921 I

i Program Version: V2.11.1.a.9.6.96 l Report Printed At: 10:35:09 AM on 09/09/96

{

Total Pages: 7 Page 7:TSABS:V2.11.1.a.9.6.96 Page 45  !

)

Statistical Summary Removable Surface Activity - Beta Survey gg y, .== .

Location Code: F0015AS001CZ Survey Reason: T01 Initial Final Release hiedium Codes: B0048, Bh1C01 Net dpm/100 cm2 l Upper Confidence Limit (UCL) 2.8 l lStean 1.4 l l hiaximum 18.5 l l hiinimum 5.7 l l Standard Deviation 5.0 l l hiinimum Detectable Activity 30.0 l l Critical Level 12.0 l l Samples Reported 35l l Sampies Prescribed 35l Tests Performed l Samples Reported greater than or equal to Samples Prescribed YES l Passed l AIDA < 187.5 dpm/100 cm2 YES l Passed j Percent of Samples > 375.0 dpm/100 cm2 0.0 l Passed (3) l Number of Samples > 562.5 dpm/100 cm2 0 l Passed (4) l UCL of hiean less than or equal 750.0 dpm/100 cm2 YES l Passed (3) 10% Test (4) Single Measurement Test Page 1:RSABS:V2.11.1.a.9.6.96 Page 46

, l l

Corrected Field Activity Values 1

=

Removable Surface Activity - Beta Survey a. ~

5....3@fd 1

~ .

..~

Location Code: F0015AS001CZ Comments: Activity reported in Net epm /100 cm2 '

Underlined values exceed the critical level.

Bold values exceed 375.0 dpm/100 cm2, Italic values exceed 562.5 dpm/100 cm2 Medium RC# Location # Activity Code Reason Code B0048 26.64074 1 7.5 1

T01 26.64075 2 0.9 i 26.64076 3 -3.5 1 26.64077 4 -1.3 26.64078 5 -1.3 26.64079 6 -1.3 26.64080 7 -1.3 26.64081 8 0.9 26.64082 9 9.7 26.64083 10 0.9 26.64084 11 -3.5 i 26.64085 12 -1.3 '

26.64086 13 -1.3 26.64087 14 5.3 26.64088 15 0.9 26.64089 16 -1.3 26.64090 17 0.9 26.64091 18 -1.3 26.64092 19 -1.3 26.64093 20 1.1 BMC01 26.63986 21 -1.3 26.63987 22 11 9 26.63988 23 -1.3 26.63989 24 -1.3 '

26.63990 25 3.1 26.63991 26 0.9 26.63992 27 0.9 26.63993 28 0.9 26 63994 29 -5.7 26.63995 30 -1.3 26.63996 31 9.7 26.63997 32 7.5 ,

26.63998 33 -1.3 '

26.63999 34 -1.3 26.64000 35 . 18 5 Page 2:RSABS:V2.11.1.a.9.6.96 Page 47

. 1 l,

4i

• il l

l Graph of Activity versur Locatiou Number Removable Surface Activity - Beta Survey -W555

. ... . i

. ~ -

Location Code: F0015AS001CZ i

Survey Reason: T01 - Initial Final Release l

Medium Codes: B0048, BMC01 )

l 4

Guideline Value 750.0 dpm/100 cm 8 800 y __________ _ __ _ __ __

700- ------------------------------------------------.----------.--------.

i i 600------------ ---------------------------------------------------------

J a

500- --------------------------------------------------------------------- i i

400- --------------------------------------------------------------.------

8

! 3c.

300- ---------------------------------------------------------------------

1:

Z 200- ---------------------------------------------------------------------

100----------------------------------------------------- ----------------

==-  :-. .. == .--.-..-.--.--._--.-.--.-.-.-.-g 0--_n % ; ; ; _ : . -. -. - _w.

• • --.-.-.---.-.s-.; *w -

=;;=--  ; a --+ .-

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-100 ,

l l l ,

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0 5 10 15 20 25 30 35 Location Number l

1

! --.- Critical level -.-- M DA -+- Guideline Value -.- Activity i

Page 3:RSABS:V2.11.1.a.9.6.96 Page 48

Laboratory Equipment Used .

i Removable Surface Activity - Beta Survey E

==@@@

g = ,. ,

Location Code: F0015AS001CZ Survey Reason: T01 - Initial Final Release Medium Codes: B0048, BMC01 Location # Range Survey User ID Laboratory Serial Equipment Number 1.00 CJG1226 LB-5100W UNIT 2 Program Version: V2.11.1.a.9.6.96 Report Printed At: 10:38:09 AM on 09/09/96 Total Pages: 4 Page 4:RSABS:V2.11.1.a.9.6.96 ,

,,_; j wd:Asf).9 St

(

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-l i ATTACHMENT 6.3 i 'a' -

SURVEY PACKAGE COVFR SHEET Package Page I of 13 SURVEY PACKAGE PHASE 1 COMPLETION Generallnformation PackageID F0039 Building (s) Reactor Survey Area F0039 Elevation (ft) 4771 Survey Area Name

, Level 3 West - East General Area Package Description Survey Area Description' Level 3 West - East General Area Level 3 West East General Area The survey area consists of floor grating walls and structures / equipment. The ceiling is open grating and will be surveyed as the floor in survey package F0066. The following affected systems are located in the area:

System 22 - Secondary Coolant System 46 - Reactor Plant Cooling Water System 73 - Reactor Plant Ventilation Surface Grid Requirements Suspect Affected Survey Units are gridded using a 1x1 meter grid size. Survey measurement locations (SML) 4 will be marked on survey maps and/or survey instructions to designate where measurements have been collected. SMLs will be labeled on floor, walls and structures / equipment surfaces. Appropriately sized areas will be identified on survey maps to designate where structures / equipment measurements need to be collected.

General Remarks The entire ceiling of this area is open grating and will be surveyed as the floor in survey package F0066, therefore, no ceiling areas will be addressed and no ceiling maps will be provided in this survey package.

Area Preparation Special Support Requirements '

Ladders may be needed to access overhead areas.

Scaffolding may be required to access overhead areas.

Temporary lighting may be required in poorly illuminated areas.

Specific Safety Precautions '

Safety belts are required when working in overhead areas above 2 meters.

Electricians shall perform a voltage check of the cable trays containing exqosed wires prior to surveyin . ,

IA :*1^ WH W 4 m eMW9p Isolation Controls Specified and Scheduled to Commence * /1 Isolation Level B- see due g, j jg',/' g gjfpg No use, storage ormovement of radioactive matenalis to be permitted in this Survey Area after the snitiation of final survey measurements without authorization from the Technical Projects Supervisor (TPS) and the Final Survey Lead Engineer (FSLE). Containers of radioactive matenalmoved to this area shallnot have removable activity in excess of 250 dpm/100 cm*.

Configuration changes. susbsequent to the completion of final surveys, requires notification of the TPS and the Final Survey Operations Supervisor (FSOS) and approvalfrom PSCo.

AHhestM af i:,e ru e L u, 6 Meteeinstali carner ropes 4lNgnfinstrDetsg retenne! teeteet&aoLeu -

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ATTACHMENT 6.3 (continued)

J SURVEY PACKAGE COVER SHEET Package Page C of I2 lPackageID F0039 l Building (s) l Elevation (ft)4771 l Drawing # RX_3 l Survey Area F0039 l Reactor Package Description Level 3 West- East General Area Notes I

The general area addressed by the survey pedage (e g machme shop, hot service facihty I'CRV, etc.)

2 i Scaffoldmg, ladders, temp hghtmg, installauon of a power supply, etc, 3 )

Confmed space entry permits. etc. Interface wuh MK as necessary.

d Isolauon requirements in accordance wuh procedure FSV SC4 RS-l.108

• Final survey Isoladon and Control Measures."

SURVEY PACKAGE PHASE 1 COMPLETION "- '

The survey package instructons are prepared '

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i and ready for implementaton. Signed

"Jbb'N2 Date:7[/ 7!h

/ Technical 6rojects Supervisor Signed: I Date Signed.

F Aal Survey Oper'ations Supervisor Date: 7 7!k SURVEY PACKAGE PHASE 2 COMPLETION The Instal survey instructions have been.

implemented and the survey measurements collected and reviewed for completeness in S gned b -J Date: h."E' Field operations c nator accordance with the survey instructons.

Signed: .

Date: / E (

, nal Survey O ions Superv r Signed b Radiological

'h - engmeer I'dfM'7 /L Date["4N[

i g SURVEY PACKAGE PHASE 3 COMPLETION Survey measurements and samples specified in the survey package instructons have been evaluated and any required  ;/ -

investigaton or replacement surveys have been identfied and performed. Final data Signed paia evaivation gngmeer N Date b/bh satrsfies survey acceptance enteria and no f

outstanding surveys are pending Release record (s) for each survey unit are included in Signed 7/N Date-this survey package. ' Fmal Survey Lea (Engmeer l #4 - . j g e* g t ,,t

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SURVEY PACKAGE COVER SHEET Package Page 3 or 17 l lPackageID F0039 l Building (s) l Elevation (ft)4771 l Drawing # RX,_3 l Survey Area F0039 (

1 Reactor Package Description Level 3 West- East General Area SURVEY PACKAGE PHASE 4 COMPLETION This Final Survey Package is author 2ed for 1 Q'go~

closure. All required reviews are Signed MAA Date: I l#

completed and the data analysis results Radiological Engine i meet acceptance enteria.

Signed. 1 ki dd Final Survey Leh Engineer Date: l9 f 7[,

Signed: 91 ' ' - 0 M *d Date Y !7c L/ Technic I Projects Supervisor Signed Edw / fub t, Date: 9 Af 94 Project Radiation Protacison Man 4 e d .* 'i,' q ,.;

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i ATTACIIMENT 6.4 (PART 2)

SURVEY PACKAGE CORRECTION /CIIANGE IIISTORY Package ID: Foo39 Package Page # of I8 .

Survey Package Correction / Change IIistory Change Initials /Date No. Y. I " Initiator TPS FSLE FSOS This change is considered a minor technical change and covers tfie down grading of Isolation Controls for I specific areas of the Reactor Building. Isolation Controls are being reduced from Level 3 to Level 2 in #

If accordance with the directive issued by the PRPM by Memorandum dated August 8,1996, " Modification to level 3 Isolation Controls..." This package has been modified to reflect the implementation of level 2 Isolation Control. J /' p g fj/g x)/g j:,yg AM f D. & ;2 -eda 1&& ,5791/--. b-2 n*&ec( .c+6-jpacAetcZiisoskgw~A"tPtry& h jg a4 .tk xlA N

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ATTACHMENT 6.4 (PART 2)

SURVEY PACKAGE CORRECTION /CliANGE HISTORY Package ID: Foo 9 9 eackage eage fo-or /s Survey Package Correction / Change IIistory Initials /Date Change Description Initiator TPS FSLE FSOS Deleting "PCRV penetration surveys in progress

• statement as per QPF %-301 response. N/A N/A N/A 3 *VWrg i

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- Package ID : F0039 Package Page 5 or i P Number of Measurements 8 Survey Unit Description Type Classification Survey Medium Descnption SA ER in Situ PIC F0039EZ0018ZT01 surfaces a structures suspect, affected structure concrete -bare (interior) 65 0 0 0 8'"* *'.a sunnnarv A,. m con.ct,on #1 -genene matenet 257 16 0 0 Building: Reactor 4771 ft elevation Total surface area 149 Level 3 West - East General Area Floor area 25 Floors, Walls and Structures / Equipment was area < 2 m 39 '

General Remarks i Desian Considerations Wan area > 2 m 85 The exposure rate measurements collected at a distance of one meter Ceiling area O from the floor surface satrsfy the measurement requirements for this survey unit.

The entire ceihng of this area is open grating and vnt be surveyed as the floor en survey package F0066.

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ATTACHMENT 6.5 (PART 1)

General Information Package Page h of N Package ID : F0039 Survey Area Name : Level 3 West East General Area

Instructions survey Instruction Reason: Initial Final Release Survey Unit

Description:

Level 3 West - East GenerP.! AIF a Unit Code (L1,L2,L3) : F0039,EZ001,BZT01 Floors. Walls and Structures / Equipment Survev Type 1 Generallnstructions Total Activity Scan 100% of the accessible surfaces using "FLDSN" as the L5 code. Mark areas of . t elevated activity and specify on the applicable forms (attachment 6.5, the download reports

& survey drawings) which SML(s) were used at elevated scan locations.

• Collect measurements at grid intersecticos. Also, collect additional measurements at any areas of elevated activity identified and marked during the scan. Use the next sequential location number for the additional measurements and "FLDSN" as the L5 code.

Skgd instructions Collect a minimum of six 60-second shielded local area background co Jnts for each surface identified by a location code (i.e. each survey medium), ensurir;g that at least three background counts are performed for each download.

Enter a zero background subtract value when downloading survey data. Use "FLDBK" as the L5 code when per'orming background counts.

Removable Activity Field check smear samples taken at elevated areas identified and marked during the scan. If the field check results indicate removable activity >750 dpm/100 cm', then post the area in accctdance with procedure FSV-RP-OPS-I-101 and notify a F.O.C.

Beta-Gamma : Collect at the same locations as the total surface activity measurements.

Exposure Rate Obtain MicroSpec-2 measurements at 1 meter from locations marked on the survey map (s). For instances where exposure rate measurements cannot be collected at a distance of one meter from the surface (e.g. due to physical constraints), annotate the survey map (s) and Attachment 6.5 - part 2 to indicate the measurements collected at a distance of less than one meter from the surface.

Instructions Completed ,,, _, g/g /}/h['gd gj/g' These approvals are only req'd v for investigation, replacement, or Technical Projects supervisor N Date other surveys performed after the f~

Initial Final Survey in the Final survey Lead Engineer oate package Final survey Operations supervisor oate b

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1 - Measurement types inciude Total actmry, removable actmty. exposure rate. in situ. special samples and PIC SC.FRS.102.5-6 FILENAME

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, GENERAL INFORMATION Survey Instruction Reason : initial Final Release Survey Package ID : F0039 Category : Walls, floors, ceilings &

Survey Unit

Description:

structures / equipment-interior Level 3 West- East General Area Classification : Suspect, affected structure Floors, Walls and Structures / Equipment Grid Size (m):1 X 1 Area (m') : 149 UnitCode (L1,L2,L3): F0039, EZ001, BZT01 TOTAL ACTIVITY Beta scan required Detector Code (L4)* : 02200 Detector Model: LMI 43-688 Count Time : 15 seconds o.t.cio, moa.. 43.eas a 4> ices e a 6. m.d imeren agewy wnea n.no in. 43 eaa. .mpioy n L4 coa. or c22co n.n u no in. 43 iose. .mpior .a L4 coa. .e o22ci Count Type (L5): FLDCT i Material Area (m') L6 L7 L8 Range # Mstmnts Instructions / Remarks concrete - bare (interior) 56 B0002 ZZZZZ 1-65 65 None collection s1 - genere matenal 93 BMC01 ZZZZZ 66-322 257 None REMOVABLE ACTIVITY

{

Detector Code (L4) : 00000 Count Type (L5): LAB 03 Beta smear \

Material Area (m') L6 L7 L8 Range Smear Type & Qty Instructions / Remarks concrete - bare (intenor) 56 B0002 ZZZZZ 1-65 Beta Gamma 65 None l

collection s1 - generc 93 BMC01 ZZZZZ 66-322 Beta Gamma 257 matenal None l

EXPOSURE RATES Detector Code (L4): 03000 Detector Model: MicroSpec Count Time : 5 minutes Count Type (LS) : FLDCT Material / Building Type Area (m') L6 L7 L8 Range # Mstmnts Instructions / Remarks collection #1 - genene material 25 G9999 ZZZZZ 1-16 16 None Other e g S C.F RS.102.5-6 M021100

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(SPECIFIC) SURVEY INSTRUCTION FORM Package Page 7 of W GENERAL INFORMATION Survey Instruction Reason : Initial Final Release )

Survey PackageID: F0039

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Category : Walls, floors, ceilings &

Survey Unit

Description:

structures / equipment-interior Level 3 West - East General Area classification : Suspect, affected structure Floors, Walls and Structures / Equipment Grid Size (m) :1 X 1 Area (m') : 149 UnitCode (L1,L2,L3): F0039, EZ001, BZT01 Comments: g gy j,c_ % g g nc >

yAdd 4to M2e -un y w g //4/14 messewtAb (SV.L. # 13S Ad '32.51) coheclect ol. e.Ae va-fed o.chivi% . *fie.t d. c14_ck- ow ' r emo.J, A c.- =cM u% sww a.+ 41-c Arem-o s leo i r, A?,cated 0 a.c + M i t 000  ; -AJ (.n W .,

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ATTAC11 MENT 6.6 COVER SHEET - DOWNLOAD REPORTS Package Page f of /@

Package ID : F0039 Inst Function Sat Download File # Location Code ' Measurement Type M2350/ Detector Serial # Technician /Date (Y/N)2 1110- 3 CEcos. BETot . SHco t W sc% 'TshNisd 13.C,l'fo[en.13S9 9 9 e..onnc,asijvioe/ogf =Ju Y i

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• 3M ) -(ile.# 134/4 ~5, A o*l8%/%

1 Use L2. L3 & L6 for Surfaces & Structures or Open Land Areas Survey Units and use L7 & L8 for Plant Systems Survey Units. -

2 IF the estrument response check DID NOT pass acceptance (e g failed source response, effe ency improper count time, etc ). THEN indcate this a this space, annotate the download report.

and contact RP Supervision and a Final Survey Engineer so that data can be evaluated and the survey unit in the package can be re-surveyed and the Survey instruction Form can be annotated property by a Fuial Survey Engineer as necessary. , ,

Reviewed by- b Field Operanons Coordmator Date

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i' ATTACHMENT 6.8 SURVEY PACKAGE VALIDATION CHECKLIST -

Su Instruction Reason:

Initial Final Survey other :

Investigation Survey Replacernent Survey Package ID : F0039 Package Page l C of )h DATA REVIEWS SURVEY DOCUMENTATION REVIEWED FOR COMPLETION: FOC Remarks Inital / Date Ganuna & Beta Scan Surveys o P3- t/x/41, Total Activhy Surveys ( p> s/-E/L Exposure Rate Surveys C W 9/ 2/46 Smears Surveys C9> &/NL Soil Samples b Water Samples

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Sediment Samples /

ALL REQ'D MEASUREMENTS & SAMPLE RESULTS ACCOUNTED Ganuna & Beta Scan Surveys cf9% trl%kb Total Activity Surveys C\GSNk Exposure Rate Surveys cp1 g)y[g Smears Surveys :p> 9/M/k, Soil Samples' '/

Water Samples

/i Sediment Samples [

COMMENTS Surveys are completed & validated M/A Date: A//#

• Field Operations Coordinator Surveys are completed and the survey package review has been completed. M/4 Date: Allh

• l'inal Survey Operations Supervisor '

l All survey design requirements g //9 are Complete. D'a t h1 M, ll j

• Radiological Engineer  !,: . -

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• Required for investigation, replacernent or other surveys performed aller the imtial final suncy in the nuncy package. ,

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ATTACHMENT 6.11 SURVEY AREA HISTORY FILE 1 OVERVIEW H

1. p Package Poge of l3 Package ID : F0039 Elevation :4771 Drawing # :RX_3 Survey Area: F0039 Building (s): Reactor Survey Area Name : Level 3 West - East General Area Survey Area Description (e.g., Listing of the major equipment and components, description of the included survey units, location facility, surfaces included, etc.):

Level 3 West - East General Area The survey area consists of floor grating, walls and structures / equipment. The ceiling is open grating and will be surveyed as the floor m survey package F0066. The following affected systems are located in the area:

System 22 - Secondary Coolant System 46 - Reactor Plant Cooling Water System 73 - Reactor Plant Ventilation Summary of Operational / Utilization History of Area (s) :

• This area was in use prior to August 18, 1989. The area did not contain equipment that required regular personnel occupancy. Periodic personnel inspections were performed in the area during plant operations.

Summary of Decommissioning / Remediation Activities (e.g., Changes to the configuration and/or removal of major equipment and components, etc.):

Various PCRV Tendon tbbes were removed from the PCRV in this survey area. AllU vent ducting in the area was not contaminated, and was dismantled only to obtain survey points. All exhaust ducting in the area was contaminated and was removed. All remaining surfaces in the area were wiped down and scabbled as necessary to remove elevated spots of contamination.

Summary of Recent Radiological Survey Results (range, averages, etc.):

i A 100% beta scan and approximately 348 smears were taken during recent characterization surveys. The beta scan indicated levels of fixed contamination up to 4,700 dpm/100cm2 Three smears were > 500 q dpm/100cm2 removable, up to 4,400 dpm/100cm2 All other smears were < 500 dpm/100cm2 removable.

All areas, where needed, were remediated and/or removed. Post decon surveys and all other areas surveyed were < 3,000 dpm/100cm2 fixed and <550 dpm/100cm2 removable.

System 73 ventilation ducting that was not removed was surveyed and indicated results of <550 dpm/100 cm2 removable and < 3,000 dpm/100 cm2 fixed.

PCRV penetration surveys are in progress. " "' "wmg waeystrf de, e.a all t enetrations will grouted OR < 750.dpm400-cm2 remnvableW.000-dpm400<mtaterageftxed-per-strrveW: =e W, ~ a m., o mcm 2 m e . r ' ,, . c " ' 5y* ,C 5.-

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References (e.g., RORs, Characterization Reports, Operational Surveys, irs, etc.) , g,, , ,

a Informal interviews with various PSCo & Wesunghouse Team personnel reFarding survey area use.7'T Qt Iso!auon Report IR-095. , [lj' ,. , ].

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, ATTACIIMENT 6.11 (CONTINUED) '

SURVEY AREA HISTORY FILE Package Page 12 of l3 Package ID :F0p39 Elevation : 4771 Drawing # :RX_3 Survey Area: F0039 CIIECKLIST I{as the sursey area ever been posted as an RCA?fes If 'Yes', explain: This survey area is located within the Reactor Building lias the survey area ever been exposed to radioactive contamination or known to be contaminatedYes If 'Yes', explain: Contamination was found during recent characterization surveys.

CONCLUSIONS Classification for Final Survey : Affected Basis for Classification : Due to the contamination found in the area, the survey area is classified as follows:

Floor, walls, ceiling and structures / equipment - Suspect Affected i Does this classification require a change to the Survey Area Breakdown ? No lQ Prepared by: 4.

I AGA 44 N/fd6, 7 logical Engineer Date f ,l '

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ATTACIISIENT 6.1

~

FINAL SURVEY DATA INVESTIGATION FORM '

f 3j Suney Package #: F0039 Location Code (s): F0039EZ001BZT01 Investigation # 1 Description of Problem (s):

The resuits of the initial survey for survey unit F0039EZ001BZT01 indicated Ne ey measurement locations (SMLs) with elevated results. The results at 5MLs 323 and 324 exceed the guideline value for total surface activity. In addition, SML 323 exceeded the guideline value for removable activity.

SML 323 (download 1267-3) had a net total activity of 3,277.0 dpm/100 cm2 and a net removable activity (RC # 26.63696) of 1.347.2 dpm/100 cm2 SML 324 had a net total activity of 2

6,765.1 dpm/100 cm and a net removable activity (RC # 26.63696) of 515.1 dpm/100 cm2. The area around SML 323 was posted as a contaminated area in accordance with FSV-RP-OPS-I-101.

SMLs 323 - 324 were taken in addition to the initially prescribed 322 measurements. SMLs 323 and 324 are located on structures / equipment at 5 meters and 6 meters above the floor level, respectively.

No other SMLs were above action levels.

Follow-up Actions: '

Invest'gstion Suney Scan in the vicinity of the elevated measurement result to define the bounds of the elevated activity.

Mark any areas of elevated activity identified during the scan.

Collect a fixed point measurement and smear sample at the locations of elevated measurement results identified during the Initial survey, using the same SML numbers with "G01 Investigation" survey reason code. Also, collect a fixed point measurement and smear sample at any area (s) of elevated activity identified during the Investigation scan survey. Use the "G01 - Investigation" survey reason code, and begin numbering with SML 325 for both the total and removable surt' ace activity measurements.

If no elevated activity is found at the location of the elevated rueasurement result (s) identified during the initial survey, and no areas of elevated activity are identified during the Investigation scan survey, then no further survey is required. If elevated activity was identified for either case, then remediate the elevated area (s).

Remediation Activities Direct remediation activities to ensure appropriate contamination control measures are implemented, and perform scan surveys to ensure the elevated areas are remediated. As a part of job-coverage, or after completion of remediation, ensure that a 100% scan survey is performed within the vicinity of the elevated measurement result (s) to confirm remediation was successful. Also, perform scan surveys over any adjacent surfaces which may have become contaminated during the remediation process. Mark area (s) of elevated activity, either for additional remediation, or for the following Remediation survey fixed point and smear sample measurements.

2 ,

1 SC.FRS.110.1-3 Page 1 of 3 M021100 113

. _ .. ~. - . - _ _

A'ITACllMENT 6.1 FINAL SURVEY DATA INVESTIGNilON FORM i

'n*

Follow-up Actions (Cong.): i Remediation Survey Following remediation activities, perform r. Remediation survey using the following technique due to the fact that the area around the points of elevated activity is small and irregular which is not amenable to a the 3 by 3 meter approach.

!' Collect a minimum of 30 total and removable activity measurements from the surfaces encompassing the location of the elevated measurement result (s) identified during the Initial survey, and any additional area (s) of elevated activity identified during the Remediation scan survey. First collect

' measurements at the location of the elevated measurement result (s) identified during the Initial survey, then collect measurements at any areas of elevated activity identified during the Remediation scan survey, then collect the balance of the 30 measurements uniformly distributed throughout the 4

included surfaces.

f; Use the "R01-Remediation" survey reason code, and begin numbering with the next sequential SML 1

number after the last Investigation measurement.  !

l Annotate a survey map to identify the location of the investigation measurements (scan and fixed i

point). If remediation is performed, then annotate a survey map to identify the location of the  ;

' Remediation measurements (scan and fixed point). Denote on Attachment 6.4 (Part 1) form (s) and i i

Attachment 6.5 (Part 2) form (s) the area (m2), SML range (L8), and the number of Investigation and Remediation survey measurements, as applicable. Submit the subfackage to a Survey Package

, Engineer.

1 The Survey Package Engineer will update the Package Database, including the type and number of measurement (s). The CAD Operator will update the survey map (s), as necessary.

After the Package Database and survey maps are updated, then return the survey package and sub-package to the Data Evalpption) Group.

Prepared By/Date:

hh R- RM (Data Eval. Engineer)

Investigation Perfonned By/ hate: bb $.Y/b (Technician)

G SC.FRS.110.1-3 Page 2 of 3 M021100 114

ATTACllMENT 6.1 FINAL SURVEY DATA INVESTIGATION FOlB1 Survey Package #: F0039 Location Code (s): F0039EZ001BZT01 Investigation #1

, Disposition:

Instructions were written and an investigation survey was perfonned using survey reason G01.

SMLs 323 and 324 were collected in download 1690-3 at the same location as SMLs 323 and 324 in download 1267-3. The following measurement results were obtained from the initial and investigation surveys: ,

SML No. Initial TSA initial RSA Invest. TSA Invest. RSA (dpm/100 cm2) (dpm/100 cm8) (dpm/100 cm2) (dem/100 cmt) 323 3,277 1,347.2 -234 < MDA*

324 6,765 515.1 -205 < M DA*

• Mis _. mum Detectable Activity Because the investigation survey failed to confirm the initial elevated reading for total and removable surface activity at SMLs 323 and 324, no further measurements were taken. Based on the results of the Investigation Survey, the following actions were taken:

)

The initial total and removable surface activity measurement results for SMLs 323 and 324, collected in download 1267-3, were deleted from the measurement database and were not used for reporting purposes.

The investigation total and removable surface activity measurement results for SMLs 323 and 324, collected in download 1690-3, were added to the measurement database and  ;

were used for reporting purposes.  !

No further actions were required.

I

, Reviewed By/Date: 3 3%J qigg jg pata Eval. Enginced Auth, for P.atial Reclass. By/Date: ,fg] n (FSLE) ;t t

SC.FRS.110.1-3 Page 3 of 3 M021100 113

5. .

I

, / yi NITACHMENT 6.1

FINAL SURVEY DATABASE CORRECTION REQUEST FORM DOWNLOAD FILE # 1267-3 Correction (s)

Description:

For F0039EZ001BZ l Delete SMLs 323 and 324 (sample numbers 19 and 29) and RC 26.63695-26.63696.

j

Reason for Correction

'

'~

The SMLs were not confirmed by the investigation survey and should be deleted from the ; .

4 database. SMLs 323 and 324 in download 1690-3 and RC 26.78545-26.78546 will replace i

the original SMLs. Refer to investigaton No.1.

l Requested By: D. Anderson Date: 9/11/96 Approved By : S Date: 9h'[94

(

Comments:

Correction (s) Made: k g v no kd Performed By: dbuA Date: 9-ll'%

~!

r ,

t .: n SC.FRS.116.1-3 Page 1 of1 M021100 -

11G

l ATTACIIMENT 6.4 (Part 1)

INITIAL SURVEY PACKAGE DESIGN g/"N 2 Package ID : F0039 Package Page / of ,o Survey Medium Number of Measurements' Survey Unit Desenption Type Classification Survey Medeum Description SA ER in Situ PIC F0039EZ0018ZG01 surfaces a structures suspect, affected structtee concrete -bare (interior) d o o o Building: Reactor 4771 ftelevation son.c. uu sm Ara m conection nt -m n=tenas 4 o o o Total surface area 149 Level 3 West - East General Area Floor area 25 Floors, Walls and Structures / Equipment was area < 2 m 39 -

General Remarks 1 Desian Considerations was area > 2 m 85, initiated by trwestigatson #1,8/22/96. Ceilmg area 0

__ =

i t

,T, Prepared by : .-

JC,Mb/12f//,(# Date: .) 3/c f4 _

1

• ER = W Rh

. _ _g ,

SC.FRS.102.4-6 v -

FILENAME = AT64_1R1.RSL 1 ATT64_1 RDL

-a - . - . . .= .

,e _CC.

~

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)

e ATTACHMENT 6.5 (PART 1)

General Information Package Page O of /O Package ID : F0039 Survey Area Name : Level 3 West - East General Area Instructions Survey instructen Reason: investigation Survey Unit

Description:

Level 3 West - East General Area Unit Code (L1,L2,L3) : F0039, EZ001,BZG01 Floors, Walls and Structures / Equipment Survey Type 1 Generalinstructions Total Activity Scan in the vicinity of each elevated measurement result to define the bounds of the elevated activity using "FLDSN" as the L5 code. Mark areas of elevated activity and specify on the applicable forms (attachment 6.5, the download reports & survey drawings).

Collect a measurement at elevated areas identified during the initial survey (refer to attachment 6.1, Final Survey investigation Form). Then collect additional measurements at any areas of elevated activityidentified and marked during the remediation scan. Use the next sequential location number for the measurement (s) and "FLDSN" as the L5 code.

Bkgd instructions Collect a minimum of six 60-second shielded local area background counts for each surface identified by a location code (i.e. each survey medium), ensuring that at least three background counts are peiformed for each download.

Enter a zero background subtract value when downloading survey data. Use "FLDBK" as the L5 code when performing background counts.

Removable Activity Field check smear samples taken at elevated areas identified and marked during the scan. If the field check results indicate removable activity >750 dpm/100 cm', then post the area in accordance with procedure FSV-RP-OPS-I-101 and notify a F.O.C.

Beta-Gamma : Collect at the same locations as the total surface activity measurements.

pg,gg Instructions Completed

, , , Qjg jp} /

fo nv gatio replacement or T*cha' cal Projects supervisor A '

Date/ /4 other surveys performed after the Initial Final Survey in the Final Survey Lead Engineer

/ . .

oat package.

Final survey operations Supervisor $ Date

/ 'v

,a#

d

. I I

1 Measurement types include: Total activity. removable activity, exposure rate. in situ, special samples and PIC.

SC.FRS.102.5-6 FILENAME a AT65.1R1 RSLI ATT65.1 RDL M021100 J .jL (r)

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' . g g' -4 . i, ATTACHMENT 6.5 (PART 2) .d; I i

(SPECIFIC) SURVEY INSTRUCTION FORM Package Page 3 of j o ' '

]

GENERAL INFORMATION 4

i Survey Instruction Reason : Investigation Survey Package ID : F0039 Category : Walls, floors, ceilings &  ;

Survey Unit

Description:

structures / equipment-interior j

Level 3 West- East General Area Classification : Suspect, affected structure Floors, Walls and Structures / Equipment Grid Size (m): N/A Area (m') : 149

\

UnitCode (L1,L2,L3): F0039,EZ001, BZG01 l

TOTAL ACTMTY Beta scan required

Detector Code (L4)*

02200 Detector Model: LMI 43-68B Count Time : 15 seconds Detector modeis 43 668 4 431068 can be used mtemmangeably When using the 43 668. employ an L4 code of 02200, when using the 431068, employ an L4 Code of 02201 4

e a'

. Count Type (L5): FLCCT ,

Material Area (m') L6 L7 L8 Range # Msrmnts ' instructions / Remarks concrete bare (intenor) 56 B0002 77777 gg p$ None cohection #1 - genene matenal - 93 BMC01 77777 3M None REMOVABLE ACTIVITY

Detector Code (L4)

00000

! Material Area (m') L6 L7 L8 Rar.ge Smear Type & Qty Instructions I Remarks

56 77777 concrete - bare (intenor) B0002 Beta Gamma gjQ None p8 '

collection #1. genenc 93 BMC01 77777 maie.,

m x4 Beta Gamma' [ None l

I a

4 Comments:

J

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8 SC.FRS.102.5-6

... . .. . 0 . .u . n . .

M021100 {lg

ATTACIIMENT 6.4 (Part 1)

Package ID : F0039 INITIAL SURVEY PACKAGE DESIGN Package Page 2/ of /d Survey Medium Number of Measurements 1 Survey Unit Description Type Classification Survey Medium Description SA ER in Situ PIC F0039EZ0018ZR01 surfaces a structures suspect, affected structure concrete - bare (interior) o o o o seac. Am. sunwn n 4m Building: Reactor 4771 ftelevation Total surface area 149 coes.cgion es . g.nme rn.,,n,i jg o o o Level 3 West - East General Area Floor area 25 p.g Floors, Walls and Structures / Equipment was area < 2 m 39

• General Remarks I Desian Considerations Wan area > 2 m 85 indsated by investigaton #1,87w"96. Ceiirng area 0 l

f i

VA 1 = she W; ER = Ep Rh Prepared by : *[ @?_- Date: -

2 f4 -;

SC.FRS.102.4-6 .

1 FILENAME = AT54_1Rt RSL i ATT64,1 RDL 4 '- A

.9 -

1

- )

ATTACHMENT 6.5 (PART 1)

GeneralInformation Package PageIof /O Package ID : F0039 Survey Area Name : Levei 3 West - East General Area Instructions Survey Instruction Reason: Remediation Survey Unit

Description:

Level 3 West - East General Area Unit Code (L1,L2.L3) : F0039, EZ001,BZR01 Floors, Walls and Structures / Equipment i

Survey Type 1 Generallnstructions ,

Total Activity if a 100% scan of accessible surfaces was not performed after remediation activities,then i perform a 100% scan of the accessible surfaces, as determined by the investigation follow-  ;

up actions, using "FLDSN" as the L5 code. Mark areas of elevated activity and specify on the applicable forms (attachment 6.5, the download reports & survey drawings) which SML(s) were used at elevated scan locations. l Collect a measurement at elevated areas identified during the initial final survey (refer to attachment 6.1, Final Survey Investigation Form). Collect measurements at SML locations

{

I denoted on the survey map (s) as determined by the investigation follow-up actions. Also, collect additional measurements at any areas of elevated activity identified and marked during the remediation scan. Use the next available sequentiallocation number for the remediation measurements and "FLDCT" as the L5 code.

Bkgd instructions Collect a minimum of six 60-second shielded local area background counts for each surface identified by a location code (i.e. each survey medium), ensuring that at least three background counts are performed for each download.

Enter a zero background subtract value when downloading survey data. Use "FLDBK" as the L5 code when performing background counts.

Removable Activity Field check smear samples taken at elevated areas identified and marked during the scan. If the field check results indicate removable activity >750 dpm/100 cm'. then post the area in accordance with procedure FSV-RP-OPS-I-101 and notify a F.O.C.

Beta-Gamma : Collect at the same locations as the total surface activity measurements.

Instructions Completed Radiological Engineer R 9' rwta N for nves gatio replacement. or Technical Projects Supervisor Date b other surveys performed after the  ;

initial Final Survey in the Final Survey Lead Engineer _ bid / oat package. {

Final Survey Operations Supervisor G) ' ,

s Dai Lt &

/ '

a.,

e,'

,. i I

1 - Measurement types include Total activity, removable activity. exposure rate. in situ, special samples and PIC.

SC.FRS.102.5-6 M021100 1ry .

FILENAME s Af65.1Rt RaLi ATT65.1 RDL .L

i

' . t! }

l I t ATTACHMENT 6.5 (PART 2) ,

(SPECIFIC) SURVEY INSTRUCTION FORM Package Page f fe of /d GENERAL INFORMATION Survey instruction Reason : Remediation Survey Package ID : F0039 Category : Walls, floors, ceilings &

Survey Unit

Description:

structures / equipment-interior Level 3 West- East General Area Classification : Suspect, affected structure Floors, Walls and Structures / Equipment Grid Size (m) : N/A Area (m') : 149 UnitCode (L1,L2,L3): F0039,EZ001, BZR01 TOTAL ACTIVITY Beta scan required Detector Code (L4)* : 02200 Detector Model: LMI 43-688 Count Time : 15 seconds  !

Detector models 41688 & 411068 can be used mierchangeably when usms the 41668. employ en Le code of 02200, when usmo the 41106B. empaoy an L4 coes of 02201.

Count Type (L5): FLDCT j

Matterial Area (m') L6 L7 L8 Range # Mstmnts Instructions / Remarks l

concrete. bare (intenor) 56 B0002 77777 M O None '

collection #1 - genere matenal 93 BMC01 77777 g g None i

REMOVABLE ACTIVITY Detector Code (L4): 00000 l Material Area (m') L6 L7 L8 Range Smear Type & Qty Instructions / Remarks concrete - bare (interior) 56 B0002 ZZZZZ Beta Gamma: o none  ;

M4 conecten #1 - genere 93 BMC01 ZZZZZ material Beta Gamma: O None y0 Comments:

i t

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t

&6 SC.FRS.102.54 M021100 FILENAME e AT65 2RO RSL i ATio$ 2 RDL

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ATTACHMENT 6.6 COVER SHEET - DOWNLOAD REPORTS Package Page b og /d Package 10 : F0039 Inst Function Sat Download File # Location Code ' Measurement Type M23500etector Serial # Technician /Date (Y/N)2 N88-3 EZtDI 3Z6Ci ~4W0l 1 '

MPfA 9fMI f Rdi753 7 3,M '

PJS [

/

- /

/

/

W

/

/ A --

/-

Comments 9.

1 Use L2, L3 & L6 for Surfaces & Stmetures or Open Land Areas Survey Units and use L7 & L8 for Plant Systems Survey Units.

2 IF the mstrument response check 010 NOT pass acceptance (e g faded source response, efficency, unproper count tirne, etc.). THEN andicate this in this space, annotate the download report, and contact RP Supervision and a Final Survey Engineer so that data can be evaluated and the survey unit in the package can be re-surveyed and the Survey instruction Form can be annotated proper 1y by a Final SurveyEngineer as necessary.

Reviewed by- '

12ield Operations Coordinator Date m

SC.FRS.102.6-6 M021100 FLENAM_E = ATpyp , g g . . ;.

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-- 1 1 1

ATTACIIMENT 6.8 i-SURVEY PACKAGE VALIDATION CHECKLIST I

Survey Instruction Reason: I Initial Final Survey $ Other : $CD16Of A7tJAI lavestigation Survey L Replacernent Survey Package ID : F0039 Package Page 9 of /O DATA REVIEWS SURVEY DOCUMENTATION REVIEWED FOR COMPLETION: FOC Remarks Inital / Date Ganuna & Beta Scan Surveys kh 9 '7 'I4-Total Activity Surveys ht[hN49a Exposure Rate Surveys

/JA Smears Surveys h[O 9 *7-4 l Soil Samples MA Water Samples j Sediment Samples

\[

ALL REQ'D MEASUREMENTS & SAMPLE RESULTS ACCOUNTED Gamma & Beta Scan Surveys O 90-7v Total Activity Surveys h[h f.? f %

Exposure Rate Surveys AJA Smears Surveys /h/b9.7-f(,,

Soil Samples :

A)A Water Samples Sediment Samples )[

COMMENTS rs .

S Surveys are completed & validated )le i Date: h 7 '/4

• l'icid (IperatioNs Coordinator Surveys are completed and the survey package review has been completed.

Cyk,[ Date: N 'I[

[

• l'inal Sunch hperations Supenisor All survey design requirements @ , (( M ///d(./[ g[llI - Date:[ /2'76 are complete. ~

'~

• Radiological Engineer [

• Required for investigation, replacernent or other suneys performed after the initial final suney in the survey package.

FtEN M[=A R RSL i ATT68 RDL 124

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a ATTACliMENT 6.5 i' -

SURVEY INSTRUCTION CIIECKLIST ,'

Plecas fill in the information below ngenfing the download measurenwnts collected for tNs Final Survey Package, Answer the questions below by checking either YES or NO. Aa explanation is required for any questsne answered with a NO respones.

% 4-HAV Download File Number: Ih'I8' m inm Download Station Number: 9 Survey Package Number: YCO Reason: (Of eta .o Y

1. This checklist is for (check one): drfaces & Structures (FRS I-102) 0 Systems (FRS I-ll4) 0 Open Land Areas (FRS-I-102) 0 Other (emplain):

2. Have the rnesaurements been collected in accordance wah the Survey Package Instructions? YES [ NO O If NO is answered, then esplein why:

s

3. Have the Survey Maps been annotaied and updsied to retlest the Beta Sean Survey (eheck one): YES I NO O i:

a) If NO list the reason why the survey maps were not annotated (check one): O Not required 0 Performed previously

. O Other (cuplain):

4 4

b) Any additional rnessuremenu collected? YES O No If YES. list the Survey Measurement tastion (SMt] numbers below that were collected in addition to the prescribed measurementa.

If . list the reason why the survey maps were not annotaied (Check one): 0 Not required 0 Performed previously No elevated measurement locations identified 0 Other (explain):

4. Has Attachtnent 6.6

• Cover Sheet - Download Reports

• been updated to reDest this download? YES [ NO O If NO is answered. then list the reason for not congleting the update.

5. Have the Removable Surface Activity (srnears) nweiurements been collected at the S A locations as presenbed by the Survey Package Date sent to Radiochemistry: 'l'5% NO O -

If NO is answered, then list the reason for not collecting the se samples.

O Not required 0 Collected previously 0 Other (explain):

l l

l

6. Has the information subauaed on FRS-RP-INST l 234. Attsehown: 6. l . *S niosd Dais Form

• been correctly entered on the header of the download report and all mesuremenu property identified? YES NO O l

If NO Complete FRS-RP INST t-234. Attachnwns 6.2. Corrections Required Cover Sheet to correct information.

7. %hn the checklise questions have been answered and a "YES* response is confirmed or ession Number 6. (above) Atuchnwns 6.1. " Survey i Download Deu Form

• can be discarded. Check if Attachnwns 6.l. Discarded I

..' Technician (Print Name): *

(Signaturel:

• e N

Dete i i

1 1 t

l RP. INST.234.5-7 Page 1 of 1 M021100 128

c .-

NITACa .fENT 6.2 _

CORRECTIONS REQUIRED COVER SIIEET

/690 FILE E bN b (sE 1/f/9L Corrections Needed Requested By Approved By Actions Taken Performed By initial;. Date Initials Date Initials Date

[ha L5 to FLPfL Ne c[-54  !

[k u uf L S tofLOBK SUV 'llS/94 en sa p les o - S~. SVf 'llfl44 b

Attach this sheet to the front of the Survey Download Report requiring changes.

~

.. =. -

JP. INST.234.2 ~1 Page 1 ofI Ec -

3 .

.-. _ . _ _ . _ _ _ _ _ _ . _ . _ _ . _ _ _ . _ . _ _ _ . . _ _ _ _ _ ___....__._._._.__.__.______________________________________________m

I

'I

. i SCIENTIFIC ECOLOGY GROUP, INC. -

SEG 4

Radiological Engineering & Deconsnissioning Services Fort St. Vrain Deconsnissioning Survey Report Direct Beta Survey Report, Suspect Af fected Surfaces and Structures File #: 1690, Reactor Building, Level 3 West, East General Area, Package F0039 Reasons investigation User: BSM0490/98651 Instrunent Modet: 2350-1. S/N: 98651 Detector Model 43-688 Detector S/N: PR095537 Detector Type: 125 cm2 Gas-Flow Proportional Detector (Beta)

Average Field Background 0 cpm Efficiency: .221 ,

I Pro and Post source checks are included on this download: Yes No If ND is answereg then list the Download Files which include the Pre and Post source checks.

Pro File #: bU "'_ D Post File #: lfn#1b d Surv7y Date 9/05/96 Report Date: 9/05/96 Stations .3 - -- ------ - - -- --- -

' i l - -- --- - - --

Fils: 1690 Page: 1 l Conenents I

L7 Code L8 Code Count Gross Net beta l l Location Sample Time Gross CPM per DPM per H l

Grid ID Nunber Number (sec) Counts Det Area 100 cm2 i l l

[

Survey Unit Code: L1: F0039 L2: E2001 L3: 5Z001 l l Analysis Code: L4: 02200 L5: FLDBit L6: eMc01 l DItector Setup: 1 l

l l ZZZZZ 00006 0 60 162 16'2 586 l l ZZZZZ 00005 1 60 146 146 529 l ZZZZZ 00004 2 60 154 154 557 l l ZZZZZ 00003 3 60 :174 174 630 l l

ZZZZZ 00002 4 60 163 163 590 l

-ZZZZZ 00001 5 60 198 198 717 l Number of Measurements: 6 Average: 602 l Average epm per det. area: 166 l l

........................ j l

--Survey Unit Code: L1: F1039 L2: EZ001 L3: 92G01 l Analysis Code: L4: 02400 LS: FLDCT L6: BMC01 l D:tector Setup: 1 l

l ZZZZZ 00324 6 15 52 208 753 l ZZZZZ _ 00323 7 15 50 200 724 l Nu6er of Measurements: 2 Average: 738 l Average epm per det. area: 204 l

........................ j l

Survey Unit Code: L1: ZZZZZ L2: Sc971 L3: ZZZZZ l Analysis Code: L4: 02200 LS: PTB01 L6: ZZZZZ l D3tector Setup: 1 l ,i I ,

-4072

• ZZZZZ 00000 9 60 1125 1125 l .i

• Ftto is set at 3000 dpm/100 sq. cm. for total surface activity. M021100 13C

i

~

So. dy D:ts: 9/05/96 Repcrt D:ts: 9/05/96 Station: 3 .l. ..-... - -......................... , .........

FfL:s 1690 Page: 2 l Consnents , )

l .!

...............................................................................l  ;

L7 Code L8 Code Count Gross Net beta l Location Sample Time Gross CPM per DPM per M l Grid ID Number Number (sec) Counts Det Area 100 cm2 1 l

l

... survey Unit code: L1 ZZZZZ L2: SC971 L3: ZZZZZ l Analysis Code: L4: 02200 L5: PTB01 L6 ZZZZZ l DItector settet 1 l

l 00000 60 1133 1133 4101

• 22222 13 l Ntaber of Measurements: 2 Average: 4087 l Average cpm per det. area: 1129 l l

1

---. Survey Unit Code: L1: 2Z222 L2: SC971 L3: ZZZZZ l Analysis Code: L4: 02200 L5: PTB02 L6: ZZZZZ l Ditector Setup: 1 l

i. l ZZZZZ 00000 10 60 1186 1186 4293

• l ZZZZZ 00000 14 60 1307 1307 4731

• l Ntsuber of Measurements: 2 Average: 4512 l Average cpm per det. area: 1247 l ~

l ........................  ;

l I  !

-- Survey Unit Code L1: ZZZZZ L2: SC971 L3: ZZZZZ l Analysis Code: L4: 02200 L5: PIB03 L6: ZZZZZ l Ditector Setup: 1 l

. I 00000 60 1117 1117 4043

• ZZZZZ 11 l ZZZZZ 00000 15 60 1249 1249 4521

• l Ntaber of Measurements: 2 Average: 4282 l Average epm per det. area: 1183 l l

l

. -Survey Unit code: L1: ZZZZZ L2: SC971 L3: ZZZZZ l .

Analysis Code: L4: 02200 LS: PTBBC L6: ZZZZZ l Dstector Setup: 1 l l

ZZZZZ 00000 8 60 200 200 724 l l ZZZZZ 00000 12 60 185 185 670 l j Number of Measurements: 2 Average: 697 l Average cpe per det, area: 193 l

........................ j l

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• FLcg is set at 3000 dpm/100 sq. cm. for total surface activity. M021100

l Sw .cy DIte: 9/05/96 Report Dita 9/05/96 Station: 3: l-.....-.-..--- -............./......... ...........

Fits: 1690 Ptge: 3 *l Comuments a I . ',

.y l

...............................................................................l Tetet Nudwr of Measurements on this Report: 16 l i End cf Report l

Survey Performed By: O

• b VAN / L\- Datet

~~

\ Print Name I Signature Q Surv:y Reviewed By: ftV(ck b- bkin' / in u ,

Dates f'* 7 '

Print Name Signature 1

01559 : c : \Poox35 \M2350 \T LoGRE W : R3 4 23 93 JPA 9-12-95 GWE 1-17 96 GWE 7-25-95 MAM 10-27 95 GWE i

i i

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• Flag is set at 3000 dpm/100 sq. cm. for total surface activity. M021100 13;

Scientific Ecology Group, Inc - SEG Radiological Engineering & Decommissioning Services i Fort St. Vrain - Decommissioning Survey Report Radiochemistry Laboratory Analysis Results Analysis Date $/6/96 Report Date: 9/6/96 SCN :236.00 Activity (dpm) : 2.41e+4 l Instrument :LB-5100W Serial Number : UNIT 2 Cal Due Date 2/6/97 Efficiency : 43.4 %

Sample Count Length:1.0 min Backgroand Cocat Lenc?. : 1.0 min Background (cpm): 6.2 F0039EZ0018ZG 0100000 LAB 03 BMC01 ZZ?l.Z Analysis : Beta Sampled By : BSM0490 )

1 Simpla Number Smear Location Code cpm Area Activity MDA Critical Level Error High Flag l (cm2) (dpm) (dpm) (dpm) (dpm) I 26.78545 323 N/A 4.0 100 32.9 13.3 t 14.4 I

-5.1l 26.78546 324 N/A 6.0 100 .5 32.9 13.3 i 15.8 l High Fl gs Nona l Radiochemistry Analysis By: PD l ' Date: 4 -6;-yp_

Radiochemistry Review Byl Ag Date: 9 6-(6 Tc:chnician Review By: #+M Date:,

1- / -96 lFi Id Operation Coordinator Review By: -((3 l Date: 6 7 -Q (o 1:' ,

.. i 9

Page1 of 1 133

. I l l Scientific Ecology Group, Inc.

Radiological Engineering & Decommissioning Services gggg

~ ~ ~ ~ ~

Fort St. Vrain Nuclear Generating Station Decommissioning Project I

l Release Record Contents Survey Area Survey Area ID: Suney Area Descii lxion Pages F0039 Level 3 West - East General Area 2-5 4

Survey Unit (s)

Locadon Code Survey Unit Description Pages eve est - East General Area, Waus, Floor F0039EZ001BZ 6-47 and Structures / Equipment Prepared By: $d.k Td / 10fl5YiS SEG Ra'diological EiQineer Date Reviewed By: and hv SEG Project /5diation Pro (ection Manager

/ /f//7/f6 15 ate ' ,

Approved By: D Y/Td/~- / /C[/7/76 PSCo Radiationfrotection Manager Date Page 1

4 f

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, Scientific Ecology Gmup, Inc.

Radiological Engineering & Decommissioning Services gg

~ ~ ~ ~ .

Fort St. Vrain Nuclear Generating Station Decommissioning Project Release Record - Stuvey Ama Survey Area / Package ID: F0039 l Survey Arra/ Package

Description:

Level 3 West - East General Area The Level 3 West - East General Area was located in the eastern portion of the west half of the l Level 3 Reactor Building. The area consisted of floor grating, walls and structures / equipment.

The ceiling of this area was open grating and was surveyed part of the floor surfaces in Survey Package ID: F0066. Therefore, no ceiling areas were addressed in this Survey Package and no maps of the ceiling area were provided.

Major equipment and components included in this Survey Area and systems residing within or traversing Survey Package ID: F0039 included the following:

Equipment / Components Systems None System 22 Secondary Cooling System System 46, Reactor Plant Cooling Water System System 73. Reactor / Turbine Building liVAC The floor, walls and structures / equipment within this area were surveyed as a Suspected Affected Survey Unit. The Suspect Affected Survey Unit was gridded into 1 x 1 meter grids.

Measurement locations were labeled on the floor, walls and structures / equipment.

The Survey Package was comprised of one distinct Survey Unit. This Survey Unit was identified as follows: '

Locab Code Classification / Surface Category Suney Medium Descril tion uspect AUected WaHs, Roor and Bare Interior Concrete F0039EZ001BZ Structures / Equipment Genen,c Material Survey Area Operational IIistory:

The Level 3 West - East General Area was in use prior to August 18, 1989. 989. The area did not contain equipment that required regular personnel occupancy. Only periodic personnel inspections were performed in the area during plant operations.

Page 2

Survey Area Decommissioning and Remediation Activities:

i

' Various PCRV tendon tubes were removed from the PCRV in this Survey Area. All surfaces in the area were wiped down and scabbling was performed to remove elevated areas of total i surface activity.

J Recent Characterization Surveys which consisted of a 100% beta scan survey and approximately i 348 smears identified 2 locations of elevated total surface activity ranging to 4,700 dpm/100 cm2 and removable surface activity ranging to 4,400 dpm/100 cm2 in 3 locations on horizontal surfaces above 2 meters. One of the elevated measurements for total surface activity and two j of the elevated removable surface activity measurements were found on ventilation ductwork

! which was later removed. 100 cm2 The remaining areas of elevated activity were I

decontaminated until post-decon surveys indicated total and removable surface activity 4

measurements were less than 3,000 dpm/100 cm2 and 550 dpm/100 cm2 respectively.

j The air handling unit which was associated with System 73 was not found to be contaminated.

Portions of the unit were dismantled only to provide access points for final survey operations.

All exhaust ventilation ductwork associated with System 73 was removed from the Survey Area.

Isolation and Contml Measuits: Minimum of Level 2 Controls

! Prior to the final survey of Group F Survey Areas, training sessions were held with site assigned j personnel regarding final survey isolation and control measures.

No use, storage or movement of radioactive material was permitted in this Survey Area afto l I

initiation of final survey measurements without authorization from the Technical Project 1 Supervisor (TPS) and the Final Survey Lead Engineer (FSLE). Containers of radioactive  !

material moved to this area were not permitted to have removable surface activity in excess of 4

250 dpm/100 cm2,  !

The configuration of the Level 3 West - East General Area during final survey activities was as follows:

1. All System 73 exhaust ventilation ductwork was removed from the Survey Area,

! 2. The air handling unit associated with System 73 was dismantled only to provide

access points for final survey operations,

3. The remainder of the Survey leea remained in the same condition as during i operations.

i The above described configuration was the final configuration at completion of final survey measurements. Configuration changes, subsequent to completion of final surveys, required notification of the Technical Project Supervisor (TPS) and the Final Survey Operations Supervisor (FSOS) and the approval of PSCo.

j Page 3

-._ . . _. . - . . . . . ..=..- -

l Isolation and Contrul Measuns (continued):

For instances where remediation of Plant Systems and/or Penetrations was performed subsequent to final survey of the Surfaces and Structures within a Survey Area, the final radiological condition of the Survey Area has been referenced in the respective Final Report for the Plant System or Penetration.

Suney Ama

Conclusions:

The results of total and removable surface activity measurements and exposure rate measurements collected within this Survey Area meet the criteria for release for unrestricted use.

Suney Ama Refennees:

Isolation Report IR-095.

4 l

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l RMi lIIl0 h04 i iii li o , i H i i Ii i i i t  ! ,p. H! o@ nittiittitis9i punnqimi, Tit"t "HHHHi!4 !ihh NPHHH'NiligUI i;II'II i - oi-tri'r II I U i l l iiH!HI994! HinH  ! pl t pt i; 9 91 thihilid iii4!HHb H UiHlilhHHHkm " l L niiinHp ium! lionpiin+6ininhMj+ i'o ii  %.. me H1g"'i*ig*! u ioty' 'hi"""' .UU _ d i31.1_ _ _ _ - _ .sT3 " 4"""'"h""'""""""""' '""" "' i H ' l 8 l l l l Page 5 . Scientille Ecology Gruup, Inc. Radiological Engineering & Decommissioning Services gggg Fort St. Vrain Nuclear Generating Station Decommissioning Project Release Record - Sun ey Unit Location Code: F0039EZ001BZ Group ID: Survey Area Number Surface Category Survey Unit Classification EZ001 F 0039 (Walls, Floor and BZ (Suspect Affected) Structures / Equipment) Survey Reason: T01 - Initial Final Release Survey Unit

Description:

Level 3 West - East General Area, Walls, Floor and Structures / Equipment Survey Unit Medium: Bare Interior Concrete, Generic Material

+

Survey Unit Decommissioning and Remediation Activities:

No decommissioning or remediation activities were conducted in this Survey Unit subsequent to initiation of final surveys. See Survey Area Decommissioning and Remediation Activities l Section of this release record for activities performed prior to initiation of final surveys.

Survey Design:

Measurement Type No. of Measurements Descrigdon Beta Scan N/A ann o f e acces@e sudaces.

Two areas of elevated activity were identified.

324 Initially collected 322 total surface activity measurements at grid intersections. Collected 2 additional measurements at areas of elevated Total Surface activity identified during the scan. Collected 2 Activity investigation measurements at the same locations.

The investigation measurements failed to confirm the elevated readings. The initial elevated  ;

measurements were deleted from the database.

Collected exposure rate measurements with Exposure Rate 16 MicroSpec-2 at I meter from marked locations on the floor.

py Smears Hecte smears at same suney measurement 324 ,

locations as the total surface activity measurements.

Page 6 i

i i

Su Tey Unit Investigations:

Investigation No.1 8/22/96 The results of the Initial survey for survey unit F0039EZ001BZT01 indicated three survey measurement locations (SMLs) with elevated results. The results at SMLs 323 and 324 exceeded the guideline value for total surface activity. In addition, SML 323 exceeded the guideline value for removable activity. l SML 323 (download 1267-3) had a net total activity of 3,277.0 dpm/100 cm2 and a net  ;

removable activity (RC # 26.63696) of 1,347.2 dpm/100 cm2 . SML 324 had a net total activity of 6,765.1 dpm/100 cm2and a net removable activity (RC # 26.63696) of i

515.1 dpm/100 cm 2The area around SML 323 was posted as a contaminated area Ir, accordance with FSV-RP-OPS-I-101.

SMLs 323 - 324 were taken in addition to the initially prescribed 322 measurements. SMLs 323 and 324 were located on structures / equipment at 5 meters and 6 meters above the floor

! level, respectively. '

No other SMLs were above action levels.

Instructions were written and an Investigation Survey was performed using survey reason G01. SMLs 323 and 324 were collected in download 1690-3 at the same location as SMLs 323 and 324 in download 1267-3. The following measurement results were obtained from I the Initial and Investigation Surveys:

l SML No. Initial TSA Initial RSA Invest. TSA Invest. RSA (dpm/100 cm2) (dpm/100 cm8) (dpm/100 cma) (dpm/100 cm2) j 323 3,277 1,347.2 -234 < MDA*

324 6,765 515.1 -205 < MDA*

• Minimum Detectable Activity 1

Because the Investigation Survey failed to confinn the initial elevated reading for total and I removable surface activity at SMLs 323 and 324, no further measurements were taken.

Based on the results of the Investigation Survey, the following actions were taken:

The initial total and removable surface activity measurement results for SMLs 323 and 324, collected in download 1267-3, were deleted from the measurement database and were not used for reporting purposes. i The investigation total and removable surface activity measurement results for SMLs 323 and 324, collected in download 1690-3, were added to the measurement database and were used for reporting purposes.

No further actions were required. '

l Page 7

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Compilation of Statistical Summaries

• Total Surface Activity - Beta Survey Exposure Rate - Gamma Survey E

.9.r.:.::$[$@

.. s

Removable Surface Activity - Beta Survey Location Code: F0039EZ001BZ Medium Codes: B0002, BMC01, G9999 Comments: Total Surface Activity (TSA) reported in Net dpm/100 cm2 Exposure Rate (ER) reported in Net pR/hr.

Minimum Detectable Activity and Critical Level not calculated for exposure rate.

Removable Surface Activity (RSA) reported in Net dpm/100 cm2 t

s TSA ER RSA Upper Confidence Limit (UCL) 212.6 1.7 16.2 Mean 184.2 1.5 14.1 i Maximum 2,350.8 3.0 172.6 Minimum -487.4 0.7 -9.5 i Standard Deviation 310.5 0.6 23.7 i

Minimum Detectable Activity 621.8 N/A 33.6 Critical Level 290.9 N/A 13.8 Samples Reported 324 16 324

! Samples Prescribed 322 16 322 I

Page 1: ERGS:V2.11.1.a.9.6.96 Page 16

d 1

Statistical Summary .-

Total Surface Activity - Beta Survey r_._' _~

Location Code: F0039EZ001BZ Survey Reasons: G01 - Investigation, T01 - Initial Final Release 1 Medium Codes: B0002, BMC01

.i Net dpm/100 cm2 l Upper Confidence Limit (UCL) 212.6 l l Mean 184.2 l l Maximum 2,350.8 l l Minimum -487.4 l l Standard Deviation 310.5 l l Minimum Detectable Activity 621.8 l l Critical Level 290.9 l l Samples Reported 324 l l Sampies Prescribed 322 l Tests Performed l Samples Reported greater than or equal to Samples Prescribed YES l Passed l MDA < 2,000.0 dpm/100 cm2 YES l Passed l Percent of Samples > 3,000.0 dpm/100 cm2 0.0 l Passed (5) l Number of Samples > 4,000.0 dpm/100 cm2 0 l Passed (6) l UCL of Mean less than or equal 4,000.0 dpm/100 cm2 YES l Passed (5) 25% Test (6) Single Measurement Test Page 1:TSABS:V2.11.1.a.9.6.96 Page 17 FSR_ STAT.FSL

,o Corrected Field Activity Values Total Surface Activity - Beta Survey -E@[d5 7.g.= ,._

Location Code: F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3.000.0 dpm/100 cm2, Italic values exceed 4,000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 15 seconds.

! Medium Download # - Location # Activity Reason Code. Station # Code B0002 1301-3 1 -163.0 T01 2 14.0 3 -236.7 4 -443.2 5 -222.0 6 -163.0 7 -133.5 8 102.4 9 28.7 10 -118.8 11 102.4 12 -295.7 13 72.9 14 -325.2 15 -354.7 16 -281.0 17 -133.5 18 176.2 19 -325.2 20 146.7 21 -0.8 22 58.2 l 23 -59.8 24 -133.5 25 -443.2 26 -325.2 27 14.0 28 -45.0 29 -295.7 30 -0.8 31 72.9 32 323.6 33 -15.5 34 -118.8 ,

35 72.9 36 -

._23fL4 37 -310.5 38 -118.8 39 -192.5 40 -428.4 Page 2:TSABS:V2.I1.1.a.9.6.96 Page 18 l

Corrected Field Activity Values Total Surface Activity - Beta Survey @fd[5l

,.2,m Location Code

F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3,000.0 dpm/100 cm3, Italic values exceed 4,000.0 dpm/10) cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity Reason Code Station # Code B0002 1301-3 41 367.9 T01 42 -30.3 43 -59.8 44 249.9 45 131.9 46 72.9 47 -177.8 48 -163.0 49 14.0 50 -104.0 51 -222.0 52 -104.0 53 -74.5 54 -89.3 55 72.9 56 -325.2 57 -59.8 58 -354.7 59 -104.0 60 -133.5 61 -236.7 62 58.2 63 -487.4 64 -310.5 65 -236.7 BMC01 66 264.2 67 -1.2 68 28.3 69 28.3 70 13.5 1249-3 71 -220.7 72 -52.3 73 39.6 74 -251.4  !

75 -67.6 j Page 3:TSABS:V2.11.1.a.9.6.96 I Page 19 I

Corrected Field Activity Values

• Total Surface Activity - Beta Survey T1@{E g,; ,,,,

Location Code: F0039EZ001BZ l

Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the criticallevel.

Bold values exceed 3,000.0 dpm/100 cm2, Italic values exceed 4,000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the

, prescribed, an asterisk indicates a count time less than 15 seconds.

, Medium Download # - Location # Activity Reason

! Code Station # Code BMC01 l 1236-3 76 21.9 T01 77 -36.5 j 78 21.9

' 79 -21.9 2 80 -36.5 81 211.9 1249-3 82 -6.4 83 85.5 84 82.9 85 24.2 4

J 86 -37.0 87 -205.4 88 116.1 )

4 89 -67.6 l 90 177.4 91 116.1 4

1236-3 92 -226.5 93 -65.8 94 80.4 l 95 -168.0 4 96 65.8 97 -197.3 1249-3 93 8.9 99 -21.7 100 -98.2 101 284.5 102 8.9 1219-3 103 296.9 104 436.1 105 18.7 106 652.5 1220-3 107 307.9 108 191.5 109 -55.8 '

110 -55.8 111 2.4  !

112 2.4 113 322.4 114 75.2 l i's 409.7 Page 4:TSABS:V2.11.1.a.9.6.96 Page 20

l f  :: - s  !

l + ,;

Corrected Field Activity Values '

Total Surface Activity - Beta Survey TJ@@

ra: -- -

i Location Code: F0039EZ001BZ '

Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level. t Bold values exceed 3,000.0 dpm/100 cm2, Italic values exceed 4,000,0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity Reason Code Station #

Code BMC01 1220-3 116 206.1 T01 117 177 0 118 60.6 119 133 3 120 104.2 121 -41.2 1219-3 122 -58.6 123 111.4 l 1220-3 124 31.5 125 31.5 126 -55.8 127 118.8 128 235 2 1219-3 129 80.5 130 343 3 131 497.9 1220-3 132 75.2 '

133 133.3 134 177.0 135 31.5 136 -26.7 137 191.5 1219-3 138 _ 405 2 139 157.8 140 65.1 1220-3 141 . ,__2.913 142 -84.8 1219-3 143 80.5 144 80.5 145 126.9 146 96.0 147 204 2 148 266.0 1220-3 149 191.5 '

150 89.7 . ,,

1236-3 151 328.8 ,'

152 182.6 153 80.4 '

154 -36.5 155 241.1 Page 5:TSABS:V2.11.1.a.9.6.96 Page 21

.- _ _ - . . _ . = .-

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, r '! i,p l Corrected Field Activity Values -

l Total Surface Activity - Beta Survey 5$$$

.e...._ _ c Location Code: F0039EZ001BZ

! Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3,000.0 dpm/100 cm2, Italir values exceed 4,000.0 dpm/100 cm2

, Location #: Bold italics indicate surveyor ihntitled elevated readings in addition to the prescribed, an asterisk indicates a count t'me less than 15 seconds.

Medium Download # - Location /f Activity ~ Reason Code Station # Code

"' .1C01 1236-3 156 372.6 T01

, 157 387.2 i 158 . ' 358.0 ,

' i.

.i 159 1 328.8 I 1249-3 160 299.8 161 253.9 162 483.6 163 177.4 ,

164 208.0 165 805.1 l

166 315.2 167 177.4 168 498.9 '

169 529.5

! 170 345.8 171 407.0 172 299.8 173 330.5 174 575 4 175 590.7 176 544 8 177 299.8 178 361.1 179 391.7 180 330.5 181 253.9 182 284.5 183 330.5 184 621.4 185 177.4 l

1 1220-3 186 264 2 187 206.1 188 118.8 189 162.4 1219-3 190 142.4 '

', 191 266.0 , i 192 -27.7 193 281.5 l 194 327.9 195 235.1 Page 6:TSABS:V2.11.1.a.9.6.96 Page 22

i  ; 1 Corrected Field Activity Values i- .1 Total Surface Activity - Beta Survey I (EM@S 7.g..=,._ J Location Code: F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3,000.0 dpm/100 cm2, Italic values exceed 4,000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity Reason Code Station # Code i BMC01 1219-3 196 389.7 T01 197 296 9 198 266 0 199 312.4 200 204.2 201 49.6 '

202 -43.2 203 111.4 204 219.6 205 281.5 206 668 0 207 513.4 208 296.9 209 _250_Q 210 358 8 211 389.7 212 374.2 213 513.4 214 358 8 1267-3 215 _la281 216 638.2 217 _289A 218 425.9 219 137.8 220 46.8 221 577.6 222 350.1 223 243 9 224 516.9 225 395 6 226 137.8 227 319.7 228 77.1 229 471.4 230 152.9 ,

231 _562A 232 _S23d 233 183.3 234 471 4 235 319.7 Page 7:TSABS:V2.11.1.a.9.6.96 Page 23

/

d Corrected Field Activity Values Total Surface Activity - Beta Survey -E2@$

ra= a-Location Code: F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3,000.0 dpm/100 cm2, Italic values exceed 4,000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 15 seconds. ,

Medium Download # - Location # Activity Reason l ll Code Station # "

Code BMC01 1267-3 236 1.032.5 T01 237 1.699.8 238 1.169.0 1236-3 239 431.1 240 372.6 241 591.8 242 -51.1 243 -80.4 244 299.5 245 21.9 l

246 -109.6 247 299.5 248 36.5 249 314.2 250 51.1 1285-3 251 275.1 252 592.2 253 390.4 254 246 2 255 260.7 256 2.350 8 257 1.529.1 258 592.2 259 1.024 6 260 332.7 261 __902_3 262 592.2 263 448.0 264 361 6 265 73.3 266 275.1 267 750.8 268 ___.3616 269 448.0 '

270 664.3 271 246.2 272 -42.0 i 273 404 8 274 347.1 . .I 1236-3 275 401.8 Page 8:TSABS:V2.I1.1.a.9.6.96 Page 24

4

\

Corrected Field Activity Values Total Surface Activity - Beta Survey -5$[35 gg..g Location Code: F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3,000.0 dpm/100 cm2, Italic values exceed 4,000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the I prescribed, an asterisk indicates a count time less than 15 seconds. I Medium Download # - Location # Activity Reason Code Station # Code BMC01 l 1236-3 276 445.7 T01 277 211.9 278 226.5 279 445.7 280 328.8 l 281 489.5  !

282 299 5 283 387.2 284 460.3 285 562.6 286 80.4 l 1285-3 287 44.4 I 288 159.8 289 73.3 290 116.5 291 -27.6 292 73.3 293 448.0 294 188.6 295 116.5 l

296 102.1 297 332.7  ;

298 -27.6 l 299 1.2 ,

300 116.5 301 87.7 302 102.1 303 246 2 304 44.4 305 -171.8 306 130.9 307 246 2 308 376 0 309 _ 3221 310 476.9 '

1236-3 311 168.0 312- __4603 313 650 2 314 51.1 -

315 270.3 Page 9:TSABS:V2.11.1.a.9.6.96 Page 25

I 1

I Corrected Field Activity Values - l Total Surface Activity - Beta Survey f=$?155)

=,._.,

Location Code: F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3,000.0 dpm/100 cm2, Italic values exceed 4,000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity Reason Code Station # Code l BMC01 1236-3 316 226.5 T01 317 314 2 318 197.3 319 401.8 320 51.1 321 416 4 322 358.0 1690-3 323 122.5 G01 324 151.4 l

l

Page 10

TSABS:V2.I1.1.a.9.6.96

! Page 26

1 i

Graph of Activity versus Location Number -

Total Surface Activity - Beta Survey Edfd5 g.=,_m Location Code: F0039EZ001BZ Survey Reasons: G01 - Investigation, T01 - Initial Final Release Medium Codes: B0002, BMC01 Average Guideline Value

.1 4000.0 dpm/100 cm8

,4 4000 - -

3500 ---- ---- --- - -- ------- ----- -

3000- - - - - - - - - - - - - - - - - - ------------- ----- --------------- ------------

2500- --------------- - - ----------- ---- - ---- - -- --

11

~g 2000- -- -------- ------- ------------- ------------- -- -- ----------

8 m j1500- ---- ------- --------- ---- ------------- - - -- *------ ---------

_ o  ?

2 1000 -- --- -- - - --- - *. * -

l 500 ---1_-

I - * * ?*.# 1 IlY ,

. Oc'Q.V * % % N n*5 N;,

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-500 -- ------- E ----- --- - - -

-1000  ;

l +  ! H-t l -f 4 ---l -- - +--- ! 4 0 50 iOO 150 200 250 300 350 Location Number Critical Level n. MDA

-- - Average Guideline Value - - Activity Page 11:TSABS:V2.11.1.a.9.6.96 Page 27

i  ;

i Summary of Background Correction Values Total Surface Activity - Beta Survey -Ed@@ .'

=.=y Location Code: F0039EZ001BZ Survey Reasons: G01 - Investigation, T01 - Initial Final Release Comments: Field Background (Bkg) reported in cpm / detector area.

Medium Bkg reported in dpm/100 cm2 Field Bkg averaged over all reported Field Bkg samples for each medium surveyed.

Field Bkg Count time averaged over all reported samples for cach medium surveyed.

Download # Medium Count Field Medium

-Station # Code Time Bkg Bkg 1301-3 B0002 60.0 252.2 767.0 1219-3 BMC01 60.0 175.2 0.0 1220-3 BMC01 60.0 143.3 0.0 1236-3 BMC01 60.0 190.0 0.0 1249-3 BMC01 60.0 181.7 0.0 1267-3 BMC01 60.0 183.7 0.0 1285-3 BMC01 60.0 143.7 0.0 1301-3 BMC01 60.0 152.3 0.0 1690-3 BMC01 60.0 166.2 0.0 i

Page 12:TSABS:V2.11.1.a.9.6.96 Page 28

,l g

Summary of Minimum Detectable Activity (MDA)

Total Surface Activity - Beta Survey N7]fd5

,g..=,._

Location Code: F0039EZ0018Z 1

Survey Reasons: G01 - Investigation, T01 - Initial Final Release i

l Comments: The Statisical Summary page includes the maximum MDA and associated critical level shown below to demonstrate compliance with FSV requirements for minimum detection sensitivity. -

MDA and Critical Level reported in dpm/100 cm2  !

j Count Time averaged over all reported samples for each medium surveyed. j Download # Medium Count Critical MDA

-Station # Code Time Level 1301-3 B0002 15.0 290.9 621.8 1249-3 BMC01 15.0 189.8 421.0 1267-3 BMC01 15.0 189.0 419.1 1219-3 BMC01 15.0 188.1 418.2 l 3

1236-3 BMC01 15.0 185.2 410.0 l 1690-3 BMC01 15.0 171.6 382.5 l 1301-3 BMC01 15.0 167.4 374.7 1220-3 BMC01 15.0 160.1 359.7 1285-3 BMC01 15.0 158.9 356.8 Page 13:TSABS:V2.11.1.a.9.6.96 Page 29

4 6

Summary ef Efficiency hues ==

Total Surface Activity - Beta Survey MMBB 73..g._

Location Code: F0039EZ001BZ Survey Reasons: G01 - Investigation, T01 - Initial Final Release Comments:

Detector Detector Download # Efficiency Model Serial Number -Station #

LMI 43-106B PR126904 1219-3 0.207 LMI 43-106B PR128924 1220-3 0.220 LMI 43-106B PR126904 1236-3 0.219 LMI 43-106B PR126904 1249-3 0.209 LMI 43-106B PR126904 1267-3 0.211 LMI 43-106B PR128924 1285-3 0.222 LMI 43-106B PR128924 1301-3 0.217 LMI 43-68B PR095537 1690-3 0.221 i

i Page 14:TSABS:V2.I1.1.a.9.6.96 i Page 30

Survey Detection Equipment Used Total Surface Activity - Beta Survey g,,, b, Location Code: F0039EZ001BZ Survey Reasons: G01 - Investigation, T01 - Initial Final Release Medium Codes: B0002, BMC01 Download # - Survey User ID M2350 S/N Detector Station Id S/N 1219-3 L F1787/126172 126172 PR126904 1220-3 KRD0843/126170 126170 PR128924 1236-3 L F1787/126172 126172 PR126904 1249-3 L F1787/126172 126172 PR126904 1267-3 L F1787/126172 126172 PR126904 ,

1285-3 KRD0843/126170 126170 PR128924 1301-3 KRD0843/126170 126170 PR128924 1690-3 BSM0490/98651 98651 PR095537 l Program Version: V2.11.1.a.9.6.96 Report Printed At: 01:46:47 PM on 09/11/96 ,

Total Pages: 15 Page 15:TSABS:V2.I1.1.a.9.6.96 Page 31

I

.. i .

g

Statistical Su

. nary -

Exposure Rate - Gamma Survey ,h_@,k Location Code: F0039EZ001BZ Survey Reason: T01 - Initial Final Release Medium Code: G9999 l

i

, Nel pR/hr l Upper Confidence Limit (UCL) 1.7 l )

! l Mean 1.5 l l

l Maximum 3.0 l I l l Minimum 0.7 l l Standard Deviation 0.6 l l l Samples Reported 16l l Samples Prescribed 16l l Tests Performed l l Samples Reported greater than or equal to Samples Prescribed YES l Passed l Counting interval greater than or equal tr])0.0 seconds YES Passed l Number of Samples > 5.0 R/hr 0 l Passed (7) l Number of Samples > 10.0 pR/hr 0 l Passed (8) l UCL of Mean less than or equal 5.0 gR/hr YES l Passed

(7) Single Measurement Test (8) Single Measurement Test t

l Page 1: ERGS:V2.11.1.a.9.6.96 d48IT2fFSL i

I s  !

Corrected Field Exposure Rate Values Exposure Rate - Gamma Survey -ES$$

pm, Location Code: F0039EZ001BZ Comments: Exposure rate reponed in Net pR/hr.

Bold values exceed 5.0 R/hr, Italic values exceed 10.0 pR/hr.

Iecation #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 300 seconds.

Medium Download # - Location # Exposure Rate Reason I Code Record Id Code I G9999 1 F039E01.001 -366 1 1.1 T01 i F039E01.002 -366 2 0.7 i F039E01.003 -366 34 3.0 l F039E01.004 -366 4'4 -

1.1 F039E01.005 -366 5 1.5 F039E01.006 -366 6 0.7 F039E01.007 -366 7 1.5 ,

F039E01.008 -366 8 1.9 i F039E01.009 -366 9 1.5 F039E01.010 -367 10 1.1 F039E01.011 -367 11 1.9  !

F039E01.012 -367 12 1.5 F039E01.013 -367 13 2.2  !

F039E01.014 -367 14 1.1  !

F039E01.015 -367 15 1.5 F039E01.016 -367 16 1.1 i

1 Page 2: ERGS:V2.I1.1.a.9.6.96 Page 33

i e

I Graph of Exposure Rate versus Location Number l" E,xposure Rate - Gamma Survey -%5IE g,.;..=,_g.,

Location Code: F0039EZ001BZ i Survey Reason: T01 - Initial Final Release i

l Medium Code: G9999 i

l l Average Guideline Value j 5.0 pR/hr 15 i

i 10------- --------- ------

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O 2 4 6 8 10 12 14 16 Location Number 1

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1 - - - Average Guideline Value - - Exposure Rate

'  ?

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i Page 3: ERGS:V2.11.1.a.9.6.96 Page 34

(

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Survey Detection Equipment Used Exposure Rate - Gamma Survey -3HNi g.2 g._., g.

Location Code: F0039EZ001BZ Survey Reason: T01 - Initial Final Release 1

Medium Code: G9999 4 i

,, i q' .

l Record Id Survey User iD Detector  ;

S/N  ;

366 LCF0451 96012 367 LCF0451 96012 o 1 l

1 i

l Program Version: V2.11.1.a.9.6.96 ,  !

Report Printed At: 01:56:58 PM on 09/11/96 ' ,

Total Pages: 4 Page 4: ERGS:V2.I1.1.a.9.6.96 Page 35

L

~

Statistical Summary Removable Surface Activity - Beta Survey 7,, .,

Location Code: F0039EZ001DZ Survey Reasons: T01 - Initial Final Release, G01 - Investigation Medium Codes: B0002, BMC01 Net dpm/100 cm2 l Upper Confidence Limit (UCL) 16.2 l l Mean 14.1 l l Maximum 172.6 l l Minimum -9.5 l l Standard Deviation 23.7 l l Minimum Detectable Activity 33.6 l l Critical Level 13.8 l l Samples Reported 324 l l Samples Prescribed 322 l Tests Performed l Samples Reported greater than or equal to Samples Prescribed YES l Passed l MDA < 187.5 dpm/100 cm2 YES l Passed l Percent of Samples > 562.5 dpm/100 cm2 0.0 l Passed (3) l Number of Samples > 750.0 dpm/100 cm2 0 l Passed (4) l UCL of Mean less than or equal 750.0 dpm/100 cm2 YES l Passed (3) 10% Test (4) Single Measurement Test Page 1:RSABS:V2.12.1.a.9.13.96 Pag 3L

Corrected Field Activity Values Removable Surface Activity - Beta Survey .-BELEM

= . . = __

Location Code: F0039EZ001BZ Comments: Activi:V fcPorted in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 Medium RC# Location # Activity Reason Code Code B0002 26.64565 1 -3.3 T01 26.64566 2 5.5 26.64567 3 -3.3 26.64568 4 -3.3 26.64569 5 -3.3 26.64570 6 3.3 26.64571 7 -1.1 26.64572 8 -1.1 26.64573 9 1.1 26.64574 10 -7.7 26.64575 11 18.7 26.64576 12 -1.1 26.64577 13 -1.1 26.64578 14 7.7 26.64579 15 -5.5 26.64580 16 -1.1 26.64581 17 -3.3 26.64582 18 1.1 l

26.64583 19 -1.1 26.64584 20 3.3 26.64585 21 1.1 26.64586 22 3.3 26.64587 23 -5.5 26.64588 24 1.1 26.64589 25 1.1 26.64590 26 3.3 l 26.64591 27 -1.1

! 26.64592 28 -5.5 l 26.64593 29 7.7 26.64594 30 3.3 26.64595 31 -5.5 j 26.64596 32 -3.3 26.64597 33 -1.1 26.64598 34 25.3  ;,.,

26.64599 35 5.5 - .,

26.64600 36 7.7 n 26.64601 37 3.3  ;

26.64602 38 -5. 5

26.64603 39 1.1 26.64604 40 5.5 Page 2:RSABS:V2.12.1.a.9.13.96 Page 37 l

. , . , .f , . '.

Corrected Field Activity Values -

Removable Surface Activity - Beta Survey g.=EM@@

,=

Location Code: F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2

Medium RC# Location # Activity Reason

, Code Code B0002 26.64605 41 27.5 T01 26.64606 42 .. 34.1 26.64607 43; .

16.5 26.64608 44 i

. 23.1 26.64609 45 .. 36.3 26.64610 46 -3.3 26.64611 47 3.3 26.64612 48 1.1 i 26.64613 49 -3.3 1 26.64614 50 -3.3 26.64615 51 -3.3 26.64616 52 3.3 26.64617 53 5.5 26.64618 54 1.1 26.64619 55 -3.3 26.64620 56 -3.3 26.64621 57 -1.1 26.64622 58 3.3 26.64623 59 1.1 26.64624 60 3.3 26.64625 61 5.5 26.64626 62 1.1 26.64627 63 5.5 26.64628 64 16.5 26.64629 65 5.5 BMC01 26.64681 66 3.3 26.64682 67 3.3 26.64683 68 5.5 26.64684 69 . 12.1 ,

26.64685 .70 3.3 26.63591 71 13.2 26.63592 72' 8.8 '

i 26.63593 73 13.2 26.63594 74 2.2 26.63595 75 4.4 Page 3:RSABS:V2.12.1.a.9.13.96 p

Corrected Field Activity Values .-

Removable Surface Activity - Beta Survey E5fd5 gg.g=

Location Code: F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the criticallevel.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 1

. Medium RC# Location # Activity Reason Code Code l

BMC01 26.63596 76 2.2 T01 26.63597 77 8.8 26.63598 78 2.2 l 26.63599 79 -2.2 l

26.63600 80 4.4 i 26.63601 81 0.0 l 26.63602 82 2.2 26.63603 83 13.2 26.63604 84 4.4 26.63605 85 8.8 26.63606 86 2.2 26.63607 87 2.2 l 26.63608 88 4.4 l 26.63609 89 6.6 l 26.63610 90 4.4 26.63611 91 0.0 26.63612 92 4.4 26.63613 93 11.0 26.63614 94 11.0 3

1 26.63615 95 0.0 l

26.63616 96 4.4 26.63617 97 2.2 I 26.63618 98 4.4 ~

26.63619 99 4.4  !

26.63620 100 0.0 26.63621 101 8.8 )

26.63622 102 6.6  !

26.63058 103 8.1 l 26.63059 104 603 1 26.63060 105 21.3  ;

26.63061 106 21.3 .

26.63062 107 -0.7 l 26,63063 108 3.7 26.63064 109 3.7 26.63065 110 1.5 i 26 63066 r 111 i 3.7  !

26.63067 112 i -2.9 26.63068 113 __1f13 '

26.63069 114 1.5 -

26.63070 115 10.3 Page 4:RSABS:V2.12.1.a.9.13.96 Page 39

Corrected Field Activity Values .-

Removable Surface Activity - Beta Survey BMM

=. m Location Code: F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 150.0 dpm/100 cm2 Medium RC# Location # Activity Reason Code Code BMC01 26.63071 116 8.1 T01 26.63072 117 47.7 26.63073 118 ,, 8.1 26.63074 119- -0.7 26.63075 120 8.1 26.63076 121 1.5 26.63077 122 -2.9 26.63078 123 -2.9 26.63079 124 5.9 26.63080 125 1.5 26.63081 126 -0.7 26.63082 127 .. .... ..19.1 26.63083 128 5.9 26.63084 129 25.7 26.63085 130 14.7 26.63086 131 14.7 26.63087 132 5.9 26.63088 133 12.5 26 63089 134 10.3 26.63090 135 8.1 26.63091 136 -2.9 26.63092 137 -2.9 26.63093 138 8.1 26.63094 139 . 23.5 26.63095 140 -0.7 26.63096 141 8.1 26.63097 142 12.5 26.63098 143 8.1 26.63099 144 1.5 26.63100 145 5.9 26.63101 146 ._21Z 26.63102 147 8.1 26.63103 148 10.3 26.63104 149 21.3 26.63105 150 14.7 26.63623 151 0.0 , ,

26.63624 152 2.2 26.63625 153 8.8 26.63626 154 4.4 26.63627 155 0.0 Page 5:RSABS:V2.12.1.a.9.13.96 Page 40

1 l

Corrected Field Activity Values -

Removable Surface Activity - Beta Survey S$$5 p=g Location Code: F0039EZ001BZ Comments: Activity repor*ed in Net dpm/100 cm2 Underlined values exceed the criticallevel.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 Medium RC# Location # Activity Reason Code  !

Code l DMC01 26.63628 156 4.4 T01 26.63629 157 8.8 26.63630 158 6.6 26.63631 159 4.4 26.63632 160 15.4 26.63633 161 6.6 26.63634  !

162 0.0 j 26.63635 163 -2.2  !

26.63636 164 2.2 1 26.63637 165 _._13.2 l

26.63638 166 17.6  !

26.63639 167 4.4 26.63640 168 30 8 26.63641 169 8.8 26.63642 170 2.2 26.63643 171 15.4 26.63644 172 0.0 26.63645 173 .

13 2 26.63646 174 17.6 26.63647 175 4.4 26.63648 176 11.0 26.63649 177 6.6 26.63650 178 4.4 26.63651 179 8.8 26.63652 180 17.6 26.63653 181 8.8 26.63654 192 -2.2 26.63655 163 8.8 26.63656 184 17 6 26.63657 185 . 39 6 26.63106 186 -7.3 26.63107 187 -2.9 26.63108 188 -2.9 26.63109 189 5.9 26.63110 190 1.5 -

26.63111 191 -5.1 '

26 63112 192 -2.9 ,

26.63113 193 5.9 26.63114 194 -0.7 26.63115 195 -2.9 Page 6:RSABS:V2.12.1.a.9.13.96 Page 41

Corrected Field Activity Values -

Removable Surface Activity - Beta Survey M255 ga m Location Code: F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 I

Medium RC# Location #. Activity Reason l

Code Code BMC01 26.63116 196 -2.9 T01 26.63117 197 -7.3 26.63118 198 5.9 26.63119 199 -0.7 26.63120 200 3.7 26.63121 201 1.5 >

26.63122 202 3.7 26.63123 203 -0.7 26.63124 204 8.1 .

i 26.63125 205 14.7 26.63126 206 3.7  ;

26.63127 207 1.5 26.63128 208 -2.9 26.63129 209 -5.1 26.63130 210 -0.7 26.63131 211 12.5 26.63132 212 -2.9 26.63133 213 -9.5 l 26.63134 214 3.7 26.S3671 215 . 53.1 1 26.63672 216 60.0 26.63673 217 9.4 26.63674 218 87,6 26.63675 219 11.7 26.63676 220 . 37.0 26.63677 221 41.6 26.63678 222 . 53.1 26.63679 223 . . 80.7 26.63680 224 27.8 26.63681 225 108.3 1

26.63682 226 14.0 26.63683 227 14.0 26.63684 228 _ ._ 30.1 26.63685 229 43 9 ,

26.63686 230 ,

32.4 26.63687 231 . .. 66.9 26.63688 232

_32A .

26.63689 233 __.50.8 ' '

26.63690 234 30.1 ,

26.63691 235 -2.1 Page 7:RSABS:V2.12.1.a.9.13.'36 Page 42

Corrected Field Activity Values ===

Removable Surface Activity - Beta Survey lUd@IM

=.=g ,

Location Code: F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2  ;

Underlined values exceed the critical level.

Bold values exceed $62.5 dpm/100 cm2, Italic values exceed 750.0 dpmi!00 cm2

{

Medium RC # Location # Activity Reason Code  !

Code l BMC01 26.63692 236 172.6 T01 l 26.63693 237 o 122.1 1 26.63694 .

238 -2.1 26.63135 239 {

_.. 32.3 i 26.63136 240 . .. 56.5 26.63137 l 241 76.3 26.63138 242 8.1 26.63139 243 43.3 26.63140 244 _ 25.7 l 26.63141 245 -0.7 l l

1 26.63142 246 8.1 l 26.63143 247 5.9 26.63144 248 14.7 26.63145 249 .. . 2 3,5 26.63146 250 12.5 26.64094 251 95.5 26.64095 252 25.1 26.64096 253 0.9 26.64097 254 -5.7 26.64098 255 . 14.1 26.64099 256 69.1 26.64100 257 165 8 26.64101 258 22.9 26.64102 259 71.3 26.64103 260 9.7 26.64104 261 -1.3 26.64105 262 31.7 26.64106 263 3.1 26.64107 264 3.1 l 26.64108 265 3.1 26.64109 266 . 60.3 26.64110 267 _ 69.1 26.64111 268 44 9 26.64112 269 75.7 26.64113 270 . 22.9 ,

26.64114 271 51 5 26.64115 272 0.9 26.64116 273 3.1 26.64117 274 16.3 26.63147 275 21.3 Page 8:RSABS:V2.12.1.a.9.13.96 Page 43

Corrected Field Activity Values Removable Surface Activity - Beta Survey hd@@

g.= m Location Code: F0039EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 Medium RC# Location # Activity Reason Code Code BMC01 26.63148 276 36.7 T01 l 26.63149 277 _.3fL9 '

26.63150 278 .. 19.1 26.63151 279 49.9 26.63152 280 1.5 j 26.63153 281 . 98.3 26.63154 282 . 19.1 26.63155 283 27.9 26.63156 284 16.9 26.63157 285 52.1 l i

j 26.63158 286 . . . 19.1  :

26.64118 287 11.9 l 26.64119 288 7.5 26.64120 289 14.1 26.64121 290 0.9 26.64122 291 22.9 26.64123 292 -3.5 26.64124 293 33.9 26.64125 294 . 22.9 26.64126 295 0.9 26.64127 296 7.5 26.64128 297 5.3 26.64129 298 -1.3 26.64130 299 -1.3 26.64131 300 3.1 26.64132 301 31.7 26.64133 302 0.9 26.64134 303 .. 18.5 26.64135 304 7.5 26.64136 305 7.5 26.64137 306 -3.5 26.64138 307 25.1 26.64139 308 22.9 26.64140 309 3fL3 26.64141 310 '

. 29.5 26.63159 311 12.5 26.63160 312 21,3 26.63161 313 . 65 3 26.63162 314 12.5 26.63163 315 23.5 Page 9:RSABS:V2.12.1.a.9.13.96 Page 44

i ',

• Corrected Field Activity Values Removable Surface Activity - Beta Survey --E%@@

,g.g,._

Location Code: F0039EZ001BZ Conunents: /

Activity report-d in Net dpnt 100 cm2 l

• Underlined values exceed the critical level.  !

Bold values exceed 562.5 dpm/100 cm2. Italic values exceed 750.0 dpm/100 cm2 I i

Medium RC# Location # Activity Reason Code Code 26.63164 316 30.1 T01 26.63165 317 10.3 26.63166 316 14.7

! 26.63167 319 67.5 26.63168 320 16.9

, 26.63169 321 12.5 26.63170 322 25.7 26.78545 323 -5.1 G01

26.78546 324 -0.5 l

l I

i i

Page 10:RSABS:V2.12.1.a.9.13.96 Page 45

1 I

t 3

4 i

Graph of Activity versus Location Number --

i n

Removable Surface Activity - Beta Survey 3@[d5 Location Code: F0039EZ001BZ ,

Survey Reasons: T01 - Initial Final Release, G01 - Investigation Medium Codes: B0002, BMC01 Guideline Value' f' 750.0 dpm/100 cm8 800 700- -------------------------------------.-- ------------------ ------.--

l 600- ---------------------------------------------------------.------.----

i l

500- --------------------------- -----------------------------------------

E g 400- ---------------- --------------------------- ------ -----------.-----

3n.

" 300- -------------------------------------------- - ---- - - - --------- -

t z

200- - - - - -

o 100- -- ---

g---- -------- --

d.,.p.. . . .r t 0 ____, __ _ _ , _ _ . - --.-r_

-_ _ c -

.- - 1.__ _ _ ,_: -- Prgv.--- +N,sur-s.-

__?,

-100 .. -

j q p  : l l } _p - -_ _ } _ _ +_ _ q +-----_

0 50 100 150 200 250 300 350 Location Number

--- Critical Level -* - M D A -- - Guideline Value - . - Activity i

Page 11:RSABS:V2.12.1.a.9.13.96 Page 46

l l

Laboratory Equipment Used -

Removable Surface Activity - Beta Survey Ed[d@

g,.2,.=, g.,

Location Code: F0039EZ001BZ i l

Survey Reasons: T01 - Initial Final Release, G01 - Investigation )

Medium Codes: B0002, BMC01 l

l l

Location # Range Survey User ID Laboratory Serial Equipment Number l l

323 to 324 BSM0490 LB-5100W 1 to 322 UNIT 2  !

KRD0843 LB-5100W UNIT 2 1

l l

l Program Version: V2.12.1.a.9.13.96 .

Report Printed At: 02:40:01 PM on 09/17/96 ;

Total Pages: 12 -

Page 12:RSABS:V2.12.1.a.9.13.96 Pag 4Jg g

1 1

n ATTACIBIENT 6.3 SURVEY PACKAGE COVER SHEET .

{ Package Page I of to

SURVEY PACKAGE PHASE 1 COMPLETION Generallnfofmation 3 PackageID F0115 Building (s) Reactor Survey Area F0115 i

Elevation (ft) 4864 Survey Area Name  !

Drawing # RX_10 j Package Description Survey Area Description' .

Level 10 West- SW General Area Level 10 West -South West General Area JM The survey area conssts of floor grating, wawand ( ,0 f %$ l 4

structures / equipment. The following affected systems areW

' located in the area:

System 46 - Reactor Plant Cool.ng Water System 47 Punficanon Cooling Water

System 73 - Reactor Plant Ventiscon

I a

Surface Grid Requirements Suspect affected survey units are gridded using a 1X1 meter grid size. Survey measurement locations (SML) will be marked on survey maps and/or survey instructions to designate where measurements are to be l

collected. SMLs will be labeled on floor, wall, ceiling and structure / equipment surfaces. Appropriately sized areas will be identified on overhead maps to designate where structure / equip.nent measurements need to be collected.

Area Preparation Special Support Requirements Ladders may be needed to access overhead areas.

Scaffolding may be required to access overhead areas.

Specific Safety Precautions '  !

Safety belts are required when working in overhead areas above 2 meters.

Electricians shall perform a voltage check of the cable trays containing exposed esgrigt tgugying.

Isolation Controls Specified and Scheduled to Commence isolation LeveM)2. y gyMG gra pa,M No use, storage or movement of redooactive matenalis to be permetted on this Survey Area alter the anotiation of Mnal survey measurements without authonzstron from the TechnicalProjects Supervisor (TPS) and the Final Survey Lead Engineer (FSLE). Containers ofiadioactive matenalmoved to this area shallnot have removable activity on excess of 250 der V100 cm'.

pmg # 1 1

^":::_::;:r: :;:n.; - :,:l - e M ;::': '  ; O. .l:!::':F:-'er' W##

Connguration changes, susbsequent to the completion of 6nal surveys, requaes nottncation of the TPS and the Final j Survey Operatsons Supervisor (FSOS) and at, proval from PSCo.

l N ;;:-- M M :; b ::C": P--' ; c;e t :--- - r 50 f:: , ;, . .. . A "^^*'^' ~ ^7 W in

; .-  : 5:  : ' ^

hobby Field Operatons Coordinator u -

Date: b -lN Notes f The general area addressed by the survey padags te 3 machme shop, hot service racility, PCRv. etc)

'3 $caffoldmg. ladders, temp tightmg. mstalianon or a power supply etc,

, Contmed space entry permits. etc Interface with MK as necessary lwlanon requirements m accordance with procedure FSV-SC-FRS.1108. *Fmal Survey isotauon and Control Measures.*

SC.F RS.102.34 M021100 Fa.ENAME = afs3,st0 FSi t aN63 FDL

i 4

ATTACHMENT 6.3 (continued) l

] SURVEY PACKAGE COVER SHEET p , ,,,p ,, g , f e  ;

1

l Package 10 F0115 l Building (s) l Elevation (ft)4864 l Draw 6ng # RX_10 l Survey Area F0115 l Reector i

Package Description j Level 10 West- SW General Area i

i SURVEY PACKAGE PHASE 1 COMPLETION d

The survey package instruebons are prepared /

and ready forimplementa6on. Signed:

• Ib 6 Oc/4 WL DatdM#$

Technicagbro oces S

[ Signed: Date:

~ Fenei Survey LeadI

' Signed: Date.

F/nel Survey opdedade Supervisor

, SURVEY PACKAGE PHASE 2 COMPLETlON The inical survey instruebons have been implemented and the survey measurements

, collected and reviewed for completeness in Signed: D/[4 Date-- b accordance with the survey instruccons.

Signed: Date: k Signed:

-r

/ # Data: /o- f- 94

. . - s g

SURVEY PACKAGE PHASE 3 COMPLETION Survey measurements and sempies i

spec 6ed in the survey package instructons j have been evaluated and any required investgabon or replacement surveys have Signed:

k

1. Date

been identr6ed and performed. Final data to Evsiussion Engen or //

i sabe6es survey acceptance entena and no j

j outstanding surveys are pending. Release h hj record (s) for each survey unst are included in Signer:

the survey package.

1L (RK Date: IO/8f96

' Final Survey Lead ngmou SURVEY PACKAGE PHASE 4 COMPLETION The Final Survey Package is authonzed for

, closure Al requned renews are Si9ned- _ , i_1 -( /

Date I b

compir/ed and the data analyse results " "8'

mecemnce entena.

Signed: (t N Date Final Survey 0ed Engmeer h

Signed; N Date. loh %

g/ Techntel Protects Supenneer Signed- . .h) su Date #df/f/

Propect Radiation Prh Manager I #

SC.FRS.102.3 6 M021100 FILENAag e AT83,RC FSLI ATT83 FDL Ih 4

ATTACilMENT 6.4 (PART 2)

SURVEY PACKAGE CORRECTION /CIIANGE IIISTORY

[g/(( Package Page 3 of 2d Survey Package Correction / Change IIistory Change Initials /Date No. Desctiption Initiator TPS FSLE FSOS This change is considered a minor technical change and covers the down grading of isolation Controls for specific areas of the Reactor Building. Isolation Controls are being reduced from level 3 to tevel 2 in # -

g gp

/ accordance with the directive issued by the PRPM by Memorandum dated August 8,1996, " Modification to level 3 Isolation Controls..." This package has been modified to reflect the implementation of level I 21 solation Control.

T-lYb

.$kfs f h IttWJf.ye/e/ & rhq%.j!& % M y4/; n A/ 4 g y

~

W}'Q""'8* " 'W./ '" " W4 ( $ [v m ^

x N

w SC.FRS.102.4-7 M021100

ATTACIIMENT 6.4 (PART 2)

SURVEY PACKAGE CORRECTION /C11ANGE IIISTORY 1

Package ID: MS//5 Package Page 3 0 of do Survey Package Correction / Change IIistory initialmWate

'  % Description No. Iaialador TPS FSIE FSOS Deleting *PCRV penetration swveys in progress" staseannt as per QPF 96-301 response. M N/A

1. y/h N/A N/A m a ac a , n a s y n s y m a z n as u u y

W A6 M/n tf M

b Ac/&Y "$ 6'I' laLOAO buAIU I

""I! "A*'Ath K L$

,,n w sa x, fu dccAe3n =rl br2;A w ae u n n,unan e- < < W) i N

r r

~

N ..

i Z'

SC.FRS.102.4-7 M021100 l

__ m. _ _ _ _ _ . - _ _ _ _ _ _

ATTACHMENT 6.4 (Part 1)

Package ID : F0115 Pac % Page L/ of .e.

U m og h i Survey Unst Desenptoon Type Classecasson Survey Reesseur e SA ER beseu Plc F0115EZ0018ZT01 sursaces a siructures suspect affectedstructure concrde -bare (insano4, 123 0 0 0 ,

Building: Reactor 4864 ft elevation s s .c. Ar % A, M 10 come tecn rJ -generte anonertesl 357 0 0 Total surface aree 234 Level 10 West - South West General Area rioor ares 26 Floor Walls, Ceeling and Structures /Equiprnent was area < 2 m 62 General Reenarks i Desian Ce ' _'_ ^t _ . . Was aree > 2 m 96 Exposure race measurements will be e et 1 meter from Ceiling aree 50 accesssbie floor and lower weA surfaces and at a minemum specrig of '

1 measuremerit for each 4m8. In cases where the floor surface meets a waN surface, the Moor measurement we satisfy both floor and wed measurement requrements for that w%  !

1 i

[

t i

r i

i L

e w >

Prepared by : Ms -, e , g- t - Date: bg7/W- 1 SA = Surface ActMty. ER = Egosure Rate._ i

. SC.FRS.102.4-6 M021100

f FILENAME = AT64 1R1 RSL i ATT64_1 ROL

.- - .. -. . . . - . - - . _ ~ - .- -_- .-..~ -_- _ . - _ . . - _ - - . . . -

)

i i i l

' ATTACIBIENT 6.5 (PART 1)

(GENERAL) SURVEY INSTRUCTIONS 1 GeneralInformation Package Page ( of N Package ID : F0115 Survey Ama Name : Level 10 West- SW General Area

)

Instructions Survey instruction Reason: Intel Friel Reisene Survey Unit

Description:

Level 10 West- South West Unit Code (L1,L2,L3) : F0115,EZ001,BZT01 General Area l Floor, Walls, Ceiling and 3 Structures / Equipment 1

i i

i Survey Tvoe 1 Generalinstructions -

l Total Activity Scan 100% of the accessible surfaces using "FLDSN' as the L5 code. Mark areas of 4 l

' elevated actnnty and specify on the applicable forms (attachment 6.5, the download reports

& survey drawings) which SML(s) were used at elevated scan locations. l i

i 1

l Collect measurements at grid intersections. Also, collect additional measurements at any l areas of elevated actnnty identified and marked during the scan. Use the next sequential i location number for the additional measurements and "FLDSN" as the L5 code.

Bkgd Instructions Collect a minimum of three 60-second shielded local area back 0 round counts for each survey unit, ensuring that at least three background counts are performed for each download.

l Enter a zero background subtract value when downloading surv , data. Use "FLDBK" as the L5 code when performing background counts.

Removable Activity Field check smear samples taken at elevated areas identified and marked during the scan. If the field check results indicate removable activity >750 dpm/100 cm', then post the area in accordance vnth procedure FSV-RP-OPS-I-101 and notify a F.O.C.  !

Beta-Gamma : Collect at the same locations as the total surface activity measurements. l l

DPosum Rak Obtain MicroSpec 2 measurements at 1 meter from locations marked on the survey 1 map (s).

Instructions Completed

, , N ,,, g _ ,g;g f/q These approvals are only req'd for investgaton, replacement, or Ma'cel % supenneer A i jg h Mj) other surveye performed after the f

Inttial Final Survey in the Fmel Survey Lead Engmeer O/ oote h,//j package rines survey operations superwoor M omie M/

1 Measurement types include Total acDvrty, removable actvrty, exposure rate, in srtu. special samples and PIC. ~O SC.FRS.102.54 M021100 FILENAME a Ate 5.1Rt RSL I ATT65.1 ROL

__ _ ___m ._. - _ . . _ . - . - _ _ _ _ _ _ _ _ . - . _ _ . _ _ _ . . _ . . - . . . . - . _

1 ATTACIBIENT 6.5 (PART 2) j (SPECIFIC) SURVEY INSTRUCTION FORM Package Page b of YU GENERAL INFORMATION Survey Instruction llosoon : inthal Final Release l

Survey Package ID : F0115 Category : Walls, floors, ceilings & I Survey Unit

Description:

structures / equipment-interior Level 10 West - South West General Area classification : Suspect, affected structure i Floor, Walls, Ceiling and Structures / Equipment Grid Size (m):1 X 1 Area (m'): 234 )

UnitCode (L1,L2,L3): F0115, EZ001, BZT01 l TOTAL ACTMTY Beta scan required Detector Code (L4)* : 02200 Detector Model: LMI 4348B Count Time : 15 seconds Detector messes 434ee & 43100e con be used meerchengentWy When vomg the 4&ete empey en L4 came of 02200. when unang the 4110W. empioy en Le come of 02201 Count Type (LS): FLDCT Material Area (m') L6 L7 L8 Range # Mstmnts instructions / Remarks concrete bere(intenor) 108 B0002 77777 358-480 123 None conecten s1 genenc metenal 126 BMC01 77777 1-357 357 None REMOVABLE ACTMTY I Detector Code (L4): 00000 Count Type (L5) : LAB 03 Beta smear .

l Material Area (m') L6 L7 L8 Range Smear Type & Qty I

!nstructions / Remarks concrete bare (intenor) 108 B0002 ZZZZZ 358-480 Bete Gemrne: 123 None conection s1 - genenc 126 BMC01 ZZZZZ 1-357 Bete Gemme: 357 metenal None EXPOSURE RATES Detector Code (LA): 03000 Detector Model: MicroSpec Count Time : 5 minutes Count Type (LS): FLDCT-MaterialI Building Type Area (m') L6 L7 L8 Range # Mstmnts Instructions / Remarks conection #1 - genene metenal 26 G9999 ZZZZZ 1-10 10 None Other l "t SC.FRS.102.54 M021100 FILENAME a AteS 2R0 RSL i Af*65 2 ROL

-.. -- . - . _ _ . . - . _. . _ - . - . . ~ _ . - - - _ . . ..

ATTACHMENT 6.5 (PART 2)

(SPECIFIC) SURVEY INSTRUCTION FORM PackagePage 7 of 70 GENEP_A1 "^ _

- ^ A TlON SurveyInd :IrdelFinal Release Survey PackageID: F0115 category : Walls, floors, ceilings &

) Survey Unit

Description:

structures / equipment-interior j Level 10 West - South West General Area classification : Suspect, affected structure Floor, Walls, Ceiling and Structures / Equipment Grid Size (m):1 X 1 Area (m8): 234 l

UnitCode (L1,L2,L3)

F0115, EZ001, BZT01 Comments:

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SC.FRS.102.54 M021100 FLENAME e Atos 2RO RSL i ATTe6 2 ROL

ATTACHMENT 6.6 i COVER SHEET - DOWNLOAD REPORTS pock,,,p.,, 7 ,, et, Package 10 : F0115 Inst Function Sat Download File # Locabon Code ' Measurement Type M2350/ Detector Serial # Technician /Date (Y.N) 2 1875-3 E M/BEfo/ g ,} p,g, (g,3 fg 94gyjpg733gyg (( y,;,ly_,, _,, y '

'1260-1 I;t **t ents! NY A. Joe (& - 5 5/$ns/ss/scarr z.s.#ts.5/ *<s-rs F)

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- l comments 1

Use L2, L3 & L6 tar Surfaces & Structures or Open Land Areas Survey Uruts and use L7 & L8 for Plant Systems Survey Uruts. I 2 IF the instrument response check DID NOT pass arcar*=nce (e 9 failed source response, emcsoney, enproper munt tone, etc ). THEN indicate ttus in ttus space, annatete the download report, and contact RP Superwesen and a Fenel Survey Engmeer so that date con be evolueled and the survey unit in the peclage con be re-surveyed and the Survey Instruchon Form can be annotated property by a Fmal Surypy Engneer as necessary ,

/

Reviewed by: /A M b

r id opermion.coordiamor tw SC.FRS.192.H M821100 7 FCLENAME a ATOS,Ro RSL r ATT86 ROL

. .J.

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I

- - - . . - . . ._ ~ --.... ~ .- _ -- -. ~....-. ---~. - . . . . . - . . . . . . . ~ . - . . _ . - . . _ . . - ~

1 ATTACHMENT 6.8

}L SURVEY PACKAGE VALIDATION CHECKLIST

$ S ey Instrucuos assaae:

1 Imuel Final Survey i Other :

, lavesuseues swvey i n.piaceawat survey 4

Package ID : 79115 Package Page 9 of TC)

DATA REVIEWS a

SURVEY DOCUMENTATION i REVIEWED FOR COMPLETIOli:

j FOC Remarks toimi / Dare

Gamma & Beta Scan Surveys 3 _ M d 9435v j Total Activity Surveys

((A 943%

j Exposure Ram Surveys 1 [(d 9-23%

Smears Surveys M 9 J3 5;L Soil Samples Al A -

Water Samples

/

Sediment Samples k

! ALL REQ'D MEASUREMENTS & SAMPLE RESULTS ACCOUNTED Gamma & Beta Scan Surveys

[@ f-)]fG

! Total Activity Surveys I(,891J-T5 Exposure Rate Surveys M f.)f-ff.

Smears Surveys 849-)JfG Soil Samples A//4 Water Samples

/  !

j Sediment Samples f

COMMENTS i

! Surveys are compiend & veMas*<t M/4 Dste: M/

+ Field Operauone Coordinator

Surveys are compleed and the survey package review has been compleed. Date: M/M

+ Final Surv.y Opereuons Supe visor l All survey design requirements are complete.

M/d Date: NA

. Radiological Engineer

• Required for invesugeoon. replacement or other surveys performed aRet the smtial final survey in the survey package.

t

SC.FRS.102.8-6 4 FILENAME a ATRR0 R$L i ATT68 RDL *%1021100

1o

ATTACHMENT 6.11

{

SURVEY AREA HISTORY FILE i l

j Package Page I0 of 7 0 s

Package ID : 19115 Elevation :4864 Drawing # :RX_10 Survey Area: F0115

Building (s)

Reactor Survey Area Name : Level 10 West - SW General Area d Survey Area Description (e.g., Listing of the mWor equipment and components, description of the included survey units, location facility, surfaces included, etc.):

] Level 10 West -South West General Area De survey area consists of floor grating, walls, ceiling, and structures / equipment. The following affected

systems are located in the area

System 46 - Reactor Plant Cooling Water System 47 - Purificanon Cooling Water .

System 73 - Reactor Plant Vennlanon i Summary of Operational / Utilization History of Ares (s) :

This area was in use prior to August 18,1989. The area did not contain equipment that required regular l personnel occupancy. Penodic personnel inspections were performed in the area during plant operanons. I During decommisioning acovines the Airborne Conenmmarion Control System (ACCS) system was constructed in this area. This system included filter banks and ductwork lendme to the PCRV to maintain a neganve pressure within the PCRV dunng work activities. The filter banks wene periodically changed-out i and were confirmed to be contammated.

Summary of Decommissioslag / Remediation Activities (e.g., Changes to the configuration and/or removal of mWor equipment and components, etc.):

Various PCRV Teodon tubes were removed from the PCRV in this survey area. All f.urfaces in the area l were wiped down and scabbling was performed to remove elevated, fixed contammation spots. Prior to charactenzation surveys the entire ACCS system, including filter banks, was removed. No other remediation or system removal was required in the area.

Summary of Recent Radiological Survey Results (range, averages, etc.): '

Dust samples were taken from the cable trays and quantitative analysis indicated C040, Cs 134. Cs-137 and Eu-152. All dust in the overhead was removed by vacuummg and wipedown.

• Quanntative analysis of Lead shot found in the penetration frame on the PCRV wall indicated Co40 and  ;'

Cs-137. Dose assessment of these quannues indicated a rate at im of no more than 2.4e-2 pCi/gm.

A 100% beta scan (except the east half of the south wall) and 745 smears were taken during recent characertzation surveys. He east half of the south wall was not scanned due to a safety concern with work being performed in the overhead. Smearable acuvity was found up to 1,500 dpm/100cm2, all other sineers were < 550 dpm/100 cm2 removable. The beta scan indicated fixed acovity up to 150,000 dpm/100 cm2 All areas were remediated to < $50 dpm/100 cm2 removable and < 3000 dpm/100 cm2 fixed.

Surveys of System 73 and 46 indicated no activity >550 dpm/100 cm2 removable and > 3000 dpm/100 cin2 fixed. gcq g o 'g g- -- '.'gg eggy PCRV penetranon surveys are in progress. %- - "-- ; :r r;: e5

,- ____ _ _ _ M

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_;- ' -' r r; " " __ ' )

Inically, high background on the PCRV wall at 1 VI prevented survey of two areas. Subsequent I

SC.FRS.102.ll-6 FILENAME e Af611,R1 RSL i ATT911 RDL M021100 4 -

l

. ATTACMIENT 6.11 (CONTINUED)

SURVEY AREA HISTORY FILE Package Page Il of 7 C'

Package ID

79113 Elevation : 4864 Drawing # :RX_10 Survey Ana: F0115 j s survey at the two locanons ranged from 0.6K to 26.9K lixed and 0.4K to 0.5K at Im from t a m-=1 l i

the penetranon. Dese two locanons will have to be decontammated or grouted prior to final survey.

1

{ References (e.g., RORs, Characterization Reports, Operational Surveys, irs, etc.)

Infonnal interviews with vanous PSCo & Wesunghouse Team personnel regarding survey area use.

l Isolanon Report IR 113.

J ROR %004 i

1

{ CHECKLIST a

Has the survey ares ever been posted as an RCA? Yes l

i If 'Yes', explain: This survey area is located within the Reactor Building i

Has the survey ares ever been exposed to radioactive contamination or known to be contaminated? Yes

! If 'Yes', explain: During an airborne event that occured on the Refuel Floor on 1/15/96, wide spread j

i contamination was disbursed into the survey area. The entire area was wiped down

' subsequent to the event and surveys showed all areas <3000 dpm/100 cm2 fixed and <560 dpm/100 cm2 removable. Refer to ROR 96-004 CONCLUSIONS Classification for Flaal Survey : Affected Basis for Classification : Due to the contamination found in the area and the airborne contamination event the survey area is classified as follows:

Floor, walls, ceiling, and structures / equipment - Suspect Affected Does this classincation requist a change to the Survey Area Breakdown ? No Prepared by: ** ~

Radiological Engineer 6bM Date SC.FRS.102.ll 6 ALENAME s AT611,R1 R$L i Aff611 RCL M021100

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1 A TTACIBIENT 6.1 FINAL SURVE) DATA INVESTIGATION FOR.41 l

Survey Package #: F0115 Location Code (s): F0115EZ0018ZT01 Investigation # 1 1

Descdption of Problem (s):

The results of the Initial survey for survey unit F0ll5EZ001BZT01 indicated seven survey measurement locations (SMLs) with elevated results. The results at SMLs 289,481,482,484,485, 486 and 487 exceeded the guideline values for total surface activity (TSA). Removable surface activity for each of the above survey measurement locations was less than action levels. The total and removable surface activitiesf/or all seven SMLs are listed below:

Total Surface Activity Removable Surface Activity SML* Download # dom /100 cm2 BC.1 dom /100 cm2 289 1937-3 4,106 26.92294 -1.3 481 1260-1 11.260 26.92486 456.7 482 12.032 26.92487 162.5

• 484 4,439 26.92489 17.7 485 6,474 26.92490 26.9 486 1267-1 25,306 26.92491 15.4 487 1265-1 6,649 26.92492 -3.0 SMLs 481 through 489 were identified during the Initial 100% scan survey, and were collected in addition to the initially prescribed 480 measurements. The net total and removable surface activity results of SMLs 483,488 and 489 were not above the administrative action level. SMLs 289,484 and 486 are located on structures / equipment, SMLs 481 and 482 are located on the I-beam under Level i1 floor grating, SML 485 is located on the floor and SML 487 is located on a grouted area of i the external wall of the PCRV approximately 3 meters above the floor level.

I No other SMLs indicated activity greater than the action levels.

CbN #3 t .

Page 1 of 4

ATTACHMENT 6.1 FINAL SURVEY DATA INVESTIGATION FORM Follow-up Acdeas:

Investigation Survey Scan in the vicinity of each of the elevated measurement results, except for SML 487, to define the bounds of the elevated activity. Scan all areas in the vicinity that have any indication that appropriate decontaminscion or housekeeping activities were not perfonned. Mark any areas of elevated activity identified during the scan.

Collect a fixed point measurement and smear sample at the location of the elevated measurements using the initial SML numbers and "G01 - Investigation" survey reason code. Also, collect a fixed point measurement and smear sample at any area (s) of elevated activity identified during the Investigation scan survey using the "G01 - Investigation" survey reason code, and begin numbering with SML 490 for both the total anci removable surface activity measurements.

For SML 487, scan at least I m2 #round the measurement location. Mark any areas of elevated activity identified during the scan. Collect a fixed point measurement and smear sample at SML 487 using the initial SML number and "G01 - Investigation" survey reason code. Also, collect a minimum of 4 additional fixed point measurements and smear samples within the 1 m2 area surrounding SML 487 (include any area (s) of elevated activity identified during the scan survey) using the "G01 - Investigation" survey reason code and begin numbering with the next sequential SML number after the last Investigation Measurement.

j l

If no elevated activity is found at the location of the elevated measurement result (s) identified during the Initial survey, excluding SML 487, and no area (s) of elevated activity are identified during the investigation scan survey for all SMLs, then no further survey is required. If elevated activity was identified for either case, then remediate the elevated area (s).

Remediation Activities No remediation activities are required for SML 487. For other confirmed elevated areas, direct j remediation activities to ensure appropriate contamination control measures are implemented, and perform scan surveys to ensure the elevated areas are remediated. As a part of job-coverage, or after completion of remediation, ensure that a 100% scan survey is performed within the vicinity of the  !

elevated measurement result (s) to confirm remediation was successful. Also, perform scan surveys  !

over any adjacent surfaces which may have become contaminated during the remediation process.

Mark area (s) of elevated activity, either for additional remediation, or for the following Remediation i survey fixed point and smear sample measurements.

l l

C.hcA.w[ b Page 2 of 4 3iH

i ATTACIB1ENT 6.1 FINAL SURVEY DATA INVESTIGATION FOR.41 l Follow-up Actions (Cont.): l 1

. Remediation Servey Following remediation activities, perform a Remediation survey using the following technique due to the fact that the area around the points of elevated activity is small and irregular which is not )

amenable to a the 3 by 3 meter approach.  !

Collect a minimum of 30 total and removable activity measurements from the surfaces encompassing  !

the location of the elevated measurement result (s) identified during the Initial survey, and any additional area (s) of elevated activity identified during the Remediation scan survey. Collect  ;

measurements at the location of the elevated measurement result (s) identified during the Initial survey l

using the initial SML numbers and "R01 - Remediation" survey reason code. Also, collect i

measurements at any areas of elevated activity identified during the Remediation scan survey, and  ;

then collect the balance of the 30 measurements uniformly distributed throughout the included i surfaces. Use the "R01 Remediation" survey reason code, and begin numbering with the next l

sequential SML number after the last Investigation measurement. l Annotate a survey map to identify the location of the Investigation measurements (scan and fixed point). If remediation is performed, then annotate a survey map to identify the location of the Remediation measurements (scan and fixed point). Denote on Attachment 6.4 (Part 1) form (s) and Attachment 6.5 (Part 2) form (s) the area (m2), SML range (L8), and the number of Investigation and Remediation survey measurements, as applicable. Submit the sub-package to a Survey Package Engineer.

The Survey Package Engineer will update the Package Database, including the type and number of measurement (s). The CAD Operator will update the survey inap(s), as necessary.

After the Package Database and survey maps are updated, then return the survey package and sub-package to the Data Evaluation Group.

Prepared By/Date: M h f) h d c 930 9(, (Data Eval. Enginced Investigation Perfonned By/Date:l "

(Technician) i C wt .3 1 -

Page 3 of 4  : -

ATTACIBIENT 6.1 FINAL SURVEY DATA INVESTIGATION FORM Survey Package #: F0ll5 Location Code (s): Foll5EZ001BZT01 lavesdgation #1 Disposidon:

Instructions were written and investigation surveys were performed using survey reason G01.

SMLs 487,289,481. 482,484,485 and 486 were collected in download 2087-3 at the same location as the original elevated measurements from downloads 1260-1,1265-1,1267-1 and 1937-3 to investigate the elevated activity identified during the scan survey. The following measurement results were obtained from the initial and investigation surveys:

SML No. Initial TSA initial RSA Invest. TSA Invest. RSA (dpm/100 cm2) (dpm/100 cm2) (dpm/100 cm8) (dpm/100 cma j 289 4.114 -1.3 8,713 231.7 481 11,532 456.7 7,354 126.0 482 12,306 162.5 8,085 307.5 484 4,700 17.7 4,256 17.9 485 6,738 26.9 6,711 36.3 486 25,364 15.4 194 13.3 487 6,646 -3.0 8,717 -0.5 4

The measurement for SML 486 failed to identify the initial eleva:ed measurement. The remaining measurements were elevated and confirmed the initial activities. Remediation was required at SMLs 289,481. 482,484 and 485.

For SMI s 289. 481. 482. 484 and 485: Remediation measures were applied to the areas surrounding SMLs 289,481,482,484 and 485 and surveys were performed following the cleanup The remediation surveys required performance of 100% scan surveys within the vicinity of each elevated measurement and the collection of a minimum of 30 total and removable surface activity measurements from the surfaces encompassing the locations of the elevated measurements.

The following measurements results were obtained from the remediation surveys:

SML No. Remediation TSA Remediation RSA (dpm/100 cm2) (dpm/100 cm8) 289 1,407 11.0 481 399 -0.5 482 -83 5.1 484 267 4.1 485 1,130 13.3 The 35 total and removable surface activity measurements collected for the remediation survey confirmed that the decontamination was successful. Based on the results of the Remediation Survey, the following actions were taken:

The initial total and removable surface activity measurement results for SMLs 289,481, 482,484,485 and 486 collected in downloads 1260-1,1267-1 and 1937-3, were deleted from the measurement database and were not used for reporting purposes.

Page 4 of 5 1;

- _ . = _- - . _ _ . .- ._

ATTACILTIENT 6.1 FINAL SURVEY DATA INVESTIGATION FOR.41 Survey Package #: F0115 Location Code (s): F0115EZ801BZT01 Investigmion #1 Disposition (condaued):

The investigation total and removable surface activity measurement results for SMLs 289, 481, 482, 484 and 485, collected in download 2087-3, were deleted from the measurement database and were not used for reporting purposes.

The investigation total and removable surface activity measurement results for SML 4M, collected in download 2087-3, were added to the measurement database and were used for reporting purposes.

The 35 remediation total and removable surface activity measurement results for SMLs 289,481,482,484 and 485, collected in download 2087-3, were added to the measurement database and were used for reporting purposes.

For SML 487: Remediation measures were not applied in this instance because SML 487 occurred on a penetration which had been grouted. Scans conducted on the surfaces around SML 487 did not identify any areas of elevated activity within the square meter surrounding the elevated measurement. Four additional total surface activity measurements (SMLs 520-523 in download 2089-3) were collected within the same square meter as SML 487. These measurements totaled 370 dpm/100 cm2, 705 dpm/100 cm2, 721 dpm/100 cm2 and 1009 dpm/100 cm2 respectively, which also indicated that the elevated activity was localized. Using the investigation value of S/{9$ da cm2 for SML 487, which was higher than the initial elevated measurement, Mh'eaF ' p /1 2 was calculated for the square meter containing SML 487. The average .i it for i square meter was less than the guideline value l of 4,000 dpm/100 cm2 and the maximum activity was less than three times the guideline value.

i Based on the results of the investigation Survey, the following actions were taken:

The initial total and removable surface activity measurement results for SML 487, collected in download 1265-1, were deleted from the measurement database and were not used for reporting purposes.

The investigation total and removable surface activity measurement results for SMLs 437, collected in download 2087-3, were added to the measurement database and were us-' J :or reporting purposes.

The investigation total and removable surface activity measurement results for SMLs 520-523, collected in download 2089-3, were added to the measurement database and were used for reporting purposes.

No further actions were required.

Reviewed By/Date:

hh Mb (Data Eval. Engmeen Auth. for Panial Reclass. By/Date: fl fk ( FSt.El 1!:

Page 5 of 5

A'ITACHMENT 6.1 FINAL SURVEY DATABASE CORRECTION REQUEST FORM DOWNLOAD FILE # 1260-1, 1267-1, 1937-3, 2087-3 d4 .pl Correction (s)

Description:

F01151EZ001BZ Delete the following: 1 Download SML Samnle No. ESA L3 Code l 1260-1 481 16 26.92486 T01  ;

482 17 26.92487 T01  ;

484 19 26.92489 T01 485 20 26.92490 T01

!267-1 486 7 26.92491 T01 1937-3 289 161 26.92294 T01 1265-1 487 10 26.92492 T01*

2087-3 289 21 27.00003 G01 481 18 27.00004 G01 482 19 27.00005 G01 i 484 17 27.00006 G01 485 16 27.00007 G01 Reason for Correction:

Refer to Investigation No.1 Requested By: Dee Anderson Date: 10/4/%

Approved By :

i IIdY 17f -

Date: IO/4I96 z

Comments:

Correction (s) Made:

Performed By( M Date: IO~ T-Tb 4

SC.FRS.116.1-3 Page 1 of1 M021100 1

1 ) .

1..)

l ATTACHMENT 6.1  ;

FINAL SURVEY DATABASE CORRECTION REQUEST FORM j i

i DOWNLOAD FILE # 2087-3 Correction (s)

Description:

hW  !

l l

For F0115EZ001BZ  !

l Delete B7-B12 (sample numbers 29-34). i I

1 Reason for Correction: i The backgrounds are for ROI measurements taken on B0002 material. There are no measurements with that location code in this package. Also, DBACORR averages the R01 >

backgrounds with the G01 backgrounds to determine the field background value.

i Requested By: D. Anderson Date: 10/4/%

Approved By : '

MhMU _ Date: 'Ol 7 li' Comments:

Correction (s) Made: k 5 regW4ed Performed By: b Date: IO~7-36 SC.FRS.116.1-3 Page1 of1 M021100 1 ,' !

ATTACIIMENT 6.4 (Part 1)

Package 10 : F0115 INITIAL SURVEY PACKAGE DESIGN p, p j gg Number of Measurements 1 Survey Unet Desenption Type Classsficahon Survey Meelium De SA ER In Seu PIC F0115EZ001BZG01 surfaces a struct- suspat anected structure concre . bare wisenor) g o o o Building Reactor 4864 ft elevabon "*'**'***""'*** **"****"81-9'"'"C"'" o o O Totalsurface area 234 (,

Level 10 West - South West General Area Floor area 26 Floor. Walls, Ce hng and Structures /Equiprnent was area < 2 m s2 General Remarks 1 Desian Consklerations was area > 2 m 96 truteted by Investgatson #1,9-26-96 Cedrig area 50 Prepared by :  ?[L'W _ ,

/)( (#

J Date:

pgyg 1 SA = Surface Actmty ; ER = F=Pwa=e Rate b.s 4, SC.FRS.102.4-7 / M 21100

.. FILENAME = AT64_1R1 RSL i ATT64_1 ROL

d ATTACHMENT 6.5 (PART 1)

General Information(GENERAL) SURVEY INSTRUCTIONS Package Page of f(e .

PackageID : F0115 Survey Area Name : Level 10 West - SW General Area instructions Survey instructen Reason: Investgoten Survey Unit

Description:

Level 10 West- South West Unit Code (L1,L2 L3): F0115, E2001, BZG01 General Area Floor, Walls, Ceiling and  !

Structures / Equipment l i

Survey Tvoe 1 l Generallnstructions i Total Activity Scan in the vicinrty of each elevated measurement result to define the bounds of the elevated activity using "FLDSN" as the L5 code. Mark areas of elevated activity and specify on the applicable forms (attachment 6.5, the download reports & survey drawings).

Collect a measurement at elevated areas identifiad during the initial survey (refer to attachment 6.1, Final Survey investigation Form). Then collect additional measurements  !

at any areas of elevated actMty identified and marked during the investigation scan. Use I the next sequential location number for the measurement (s) and "FLDSN" as the L5 code.

Skod Instructions Collect a minimum of six 60-sscond shielded local area background counts for each surface identified by a location code (i.e. each survey medium), ensuring that at least three background counts are performed for each download.

Enter a zero background subtract value when downloading survey data. Use "FLDBK" as the L5 code when performing background counts.

Removable Activity Field check smear samples taken at elevated areas identified and marked during the scan. If the field check results indicate removable activity >750 dpm/100 cm*, then post the area in accordance with procedure FSV-RP-OPS-I-101 and notify a F.O.C.

Beta-Gamma : Collect at the same locations as the total surface actMty measurements.

Instructions Completed /)gg j(([M , (),y.

for r come or T*ch*'*' P'or*c'S SuP'So' 1 L Da'" 17IY b other surveys performed after the M /

instal Final Surveyin the z F nal Survey Lead Engmeer ID J Date Y/d7!b package.

{ j

, Fmal Survey Operatens Supervisor Date 9[M7((4 1 - Measurement types include Total acevrty, removable actvrty exposure rate, in situ. special samples and PIC SC.FRS.102.5 7 81LEN AME

• AT65.'R1 RSL i A"65,,1 RDL M021100 j, a'

i i

l ATTACHMENT 6.5 (PART 2)  !

(SPECIFIC) SURVEY INSTRUCTION FORM Package Page. a v.

> of I W l GENERAL INFORMATION l Survey Instruction Reason : Investigation

}

Survey PackageID : F0115 Category : Walls, floors, ceilings &

Survey Unit

Description:

l structures / equipment-interior i Level 10 West South West General Area Classification : Suspect, affected structure l Floor, Walls, Ceiling and Structures / Equipment Grid Size (m):N/A Area (m') : 2'1 UnitCode (L1,L2,L3): F0115, EZ001, BZG01 TOTAL ACTMTY Beta scan required

) Detector Code (L4)* : 02200 l om.cw .o.eas a 451oes cea w o Detector Model: LMI 43488 Count Time : 15 seconds  !

.m.<caeae. y men as = o.ees m io, a La coa. e c22 cow ae m 451oes , t4 a.e c22ci Count Type (L5): FLDCT Material Area (m') L6 L7 L8 Range # Msrmnts Instructions I Remarks concrete . bare (intenor) 108 B0002 77777 487 & fr.o - None (J ~>

g collection #1. genenc matenal 126 BMC01 77777 289,481, None 482,484, 485,486 h b REMOVABLE ACTMTY I

Detector Code (L4) : 00000 Material Area (m') L6 L7 L8 Range Smear Type & Qty instructions / Remarks concrete . bare (intenor) 108 B0002 77777 487 &

Beta Gamma: f None pu. Cu) collection #t . genenc ?26 BMC01 77777 289,481, matenal beta Gamme g None 482,484, 485,486 r 4 l

Comments:f,;4 's./ besk) cov lo so n T *seg f to /di l

i.

1 SC.FRS,102.5-7 ALENAMEA765 ;Ro RSt s aP65 2 R:A M021100

ATI'ACIIMENT 6.4 (Part 1)

Package ID : F0115 INITIAL SURVEY PACKAGE DESIGN p,c,,g,p,g, y ,, fg Nisnfar of Measurements Survey Unst Descriptoon Tm _ Classefication Survey Meeurn Descnption SA ER he Steu PIC F0115EZ0018ZR01 sursmose a structures suspect.affected structure concree -bare tweenor) o o e o Building: Reactor '

4864 ft eievation suri.c. A, sm A, i i conochon ei-genene enes-l gg o 0 0 Total surface ares 234 Level 10 West - South West General Area rioor ares 26 Floor, Walls, Ceihng and StructuresEquipment was ares < 2 m 62 General Remarks i Desian Considerations was area > 2 m 96 Irutmed by investigaten #1,9-26-96 Ceolog area. 50 e

W Prepared by : > ui_ (11 Cde:

{ SC.FRS.102.4-7 M021100 FILENAME = AT64_1R1 RSL # ATT64,1 RDL

1 ATTACHMENT 6.5 (PART 1)

General information(GENERAL) SURVEY INSTRUCTIONS f Package PageA cf h Package 10 : F0115 Survey Area Name : Level 10 West - SW General Area  ;

instructions Survey instruct on Reason: Remediation l Survey Unit

Description:

Level 10 West- South West Unit Code (L1 L2.L3): F0115,EZ001,BZR01 General Area Floor, Walla, Ceiling and  !

Structures / Equipment l

Survey Tyne 1 Generalinstructions Total Activity if a 100% scan of accessible surfaces was not performed efter remediation actMbes, then j perform a 100% scan of the accessible surfaces, as determined by the investigation follow-

' up actions, using "FLDSN" as the L5 code. Mark areas of elevated activity and specify on the applicable forms (attachment 6.5, the download reports & survey drawings) which SML(s) were used at elevated scan locations.

Collect a measurement at elevated areas identified during the initial final survey (refer to attachment 6.1, Final Survey investigation Form). Collect measurements at SML locations l

[

denoted on the survey map (s) rs determined by the investigation follow-up actions. Also,  !

l collect additional measurements at any areas of elevated activity identfled and marked during the remediation scan. Use the next available sequentiallocation number for the remediaticn. .T.;;:surements and "FLDCT" as the L5 code.

Skgd instructions Collect a minimum of six 60-second shielded local area background counts for each surface identfied by a location code (i.e. each survey medium), ensuring that at least three background counts are performed for each download.

Enter a zero background subtract value when downloading survey data. Use "FLDBK" as the L5 code when performing background counts.

l Removable Activity Field check smear samples taken at elevated areas kientfied and marked during the j scan. If the field check results indicate removable actmty >750 dom /100 crn*, then post l the area in accordance with procedure FSV-RP-OPS-I-101 and notify :; F.O C. 1 Betarsamma : Collect at the same locations as the total surfere activity measurements.

Rad.ologmal Engineer b h *O j These approvals are ontv req'd

! for investigation. replacement. of other surveys perfc,rmed after the Techncal Protects Supenneor O d M, M Data M e [

[

Initial Final Survey in the Final Survey Lead Engineer A>I .

Date package l 7 Final Survey Operations Supennsor

2 Date 3 'l f 3

v i

l 4

1 - Measurement types include Total activity, removable activity, exposure rate in situ. special samples and PIC.

SC.FRS.102.5-7 MENAME e Af65.1R1 ASL # ATT65.1 RDL M021100 1**

l l

i ATTACHMENT 6.5 (PART 2)

(SPECIFIC) SURVEY INSTRUCTION FORM L / <_

Package Page E of fW GENERAL INFORMATION Survey Instruction Reason : Remediation Survey PackageID : F0115 Category : Walls, floors, ceilings &

Survey Unit

Description:

structures' equipment -interior l

Level 10 West - South West General Area Classification : Suspect, affected structure Floor, Walls, Ceiling and Structures / Equipment i Grid Size (m) : N/A Area (m') : 234 UnitCode (L1,L2,L3): F0115,EZ001, BZR01 '

l i

TOTAL ACTMTY Beta scan required Detector Code (L4)* : 02200 Detector Model: LMI 4348B Count Time: 15 seconds o.i.cw maa . ness a suona cea ti. . a uneae..m, e.a . no in. 43-eas emm, na L4 coa. e c22coe.a . as = osoes .mm, .a L4 coa. a c22os Count Type (L5) : FLDCT Material Area (m') L6 L7 L8 Range # Msrmnts Instructions / Remarks concrete . bare (intenor) 108 B0002 77777 g g None 2 >,4 collecte s1. genene matenal 126 BMC01 77777 ar7,4//'T4Q416 None no- n 4 + Sg REMOVABLE ACTMTY Detector Code (L4) : 00000 Material Area (m") L6 L7 L8 Range Smear Type & Qty Instructions / Remarks concrete bare (intenor) 108 B0002 77777 Beta Gamma:

p None f@

sa comuon s) . ger-ac 126 BMC01 77777 2 r F v r/-*(BefaiGamma. '3f None matenal g',y85 #5 Comments f,,;.{,%l bhk] tov /*d %s u d Y '* * '- U l SciRS.102.5 7 M021100 bb ALEN.ME a A765 24o RSL i ."65 2 43L

ATTACIIMENT 6.6 COVER SHEET - DOWNLOAD REPORTS Package page 9 or / 6 Package ID : F0115 inst Function Sat i

Download File # Locahon Code ' Measurement Type M2350/ Detector Serial # Technician /Date (Y/N)2 3677-3 Czoos -

61Cor%a B' nt.2r.2 /PR13791& [ - ,,,:.,n / n-til Y f

/ , a C2a31, G'LGdi Aosto A b [1mi D1 ft.or' e m co v w '( '

_)61- 3 Ezcoh szhos as1sa

/ r B~ iststa /PAi37fti f-v . ,;..iar /w3 R y I i

/

/

F.

n-s

/

/

/

Comments 1 Use L2, L3 & L6 for Surfaces & Structures or Open Land Areas Survey Uruts and use L7 & L8 for Plant Systems Survey Uruts.

2 IF the ristrument response check DID NOT pass acceptance (e g faded source response, efficsoncy, emproper count tune, etc.) THEN indtale thes in ttus space, annotale the download report.

and contact RP Supervisson and a Fanal Survey Engineer so that data can be eWM and the survey urut in the package can be re-sur@ and the Survey instructen Form can be annotaled property ty a Final Survey Engwieer as necessary Reviewed by- /#

liield Operataons t?oordmetor Date II SC.FRS.102.6-7 FniNAME = A166 R0 RSL i AU66 RDL 4

ATTACHMENT 6.8 SURVEY PACKAGE VALIDATION CHECKLIST Survey Instrucuon Ranson: ,

lastial Final Sumy lavestigeuon Survey 1I Other :M i I8M Replacement Survey Package ID : MI15 packag,page M Sr &

DATA REVIEWS SURVEY DOCUMENTATION REVIEWED FOR COMPLETION: FOC Remarks inir,' / Dare Gamma & Beta Scan Surveys W to-g.%

Total Acuvity Surveys & po.7 4%

Exposure Rate Surveys uk Smears Surveys K /o. 3.s Soil Samples

/

Water Samples Y

Sediment Samples

[

ALL REQ'D MEASUREMENTS & SAMPLE RESULTS ACCOUNTED Gamma & Beta Scan Surveys yw ;. . ; -'h Total Acovity Surveys Lg to .3. qu Exposure Rate Surveys ph Smears Surveys M fo-74 Soil Samples

/

Water Samples

1. [4-Sediment Samples

>[

COMMENTS Surveys are completed & vahdated n- Date: W ML

+ Field Operauons Coordinator Surveys are completed and the survey package review has been completed.

Q ,

-j

. Final 5drv.ey Opersuona Supervisor All survey design requirements & ffg ((g[, gig [degg,.

are complete. W Date: M- E f[a

+ Radiolog[ca1 Engineer k

• Required for invesugauon. replacement or other surveys performed after the truual final survey in the survey package SC.FRS.102.8-7 tilt %4Mk ArW RO R$L ArTd RDL

.%1021100.)

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Radiological Engineering & Decommissioning Services ggg

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Fort St. Vrain Nuclear Generating Station Decommissioning Project Release Record Contents Survey Ana Survey Area ID: Survey Ama Description Pages F0115 Level 10 West - SW General Area 2-5 Survey Unit (s)

Location Code Survey Unit Description Pages eve 1 est - enera Area, I r, aus, F0ll5EZ001BZ 6-64 Ceiling and Structures / Equipment Prepared By: /

SEG Radiological Engineer Date i Reviewed By: /

l SEG Project Radiation Protection Manager Date i

Approved By: /

1 PSCo Radiation Protection Manager Date Page 1

C Scientific Ec:ltgy Givup, Inc.

Radiological Engineering & Decommissioning Services gg

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Fort St. Vrain Nuclear Generating Station Decommissioning Project Release Record - Stuvey Area Survey Area / Package ID: F0115 Survey Area / Package Deccription: Level 10 West - SW General Area The Level 10 West - SW General Area was located in the southwest corner of Level 10 of the Reactor Building West. The Survey Area consisted of floor grating, walls, ceiling and structures / equipment.

Major equipment and components included in this Survey Area and systems residing within or traversing Survey Package ID: F0115 included the following:

Equipnent/ Components Systems None System 46. Reactor Plant Cooling Water System system 47, Purific: tion Cooling Water System l System 73, Reactor Building HVAC System The floor, walls, ceiling, and structures / equipment of this area were surveyed as a Suspect Affected Survey Unit. The Suspect Affected Survey Unit was gridded into 1 x 1 meter grids.

Measurement locations were labeled on the floor, walls, ceiling and structures / equipment.

The Survey Package was comprised of one distinct Survey Unit. This Survey Unit was identified as follows:

Location Code Classification / Surface Category Survey Medium Description Suspect Affected Floor, Walls, Bare Interior Concrete F0115EZ001BZ Ceiling, and Structures / Equipment Genenc Material Survey Area Operational Histoty:

The Level 10 West - SW General Area and included equipment were in operation prior to August 18,1989. This Survey Area did not contain equipment that required routine personnel occupancy. Only periodic personnel inspections were performed in the area during plant operations.

During decommissioning activities, the Airborne Contamination Control System (ACCS) was constmeted in this area. The system included filter banks and ductwork which were connected to the PCRV and were used to maintain a negative pressure within the PCRV during work activities. The filter banks were periodically changed out and were confirmed as contaminated.

Page 2

C Survey Area Decommissioning and Remediation Activities:

During decommissioning activities, various PCRV tendon tubes were removed from the PCRV in this Survey Area. All surfaces in the area were wiped down and scabbling was performed to remove areas of elevated activity. The ACCS System was removed from the Survey Area, '

including all filter banks, prior to initiation of Characterization Surveys within this Survey Area.

The local heater in the area was identified as not contaminated and remained in the Survey Area.

No other remediation or system removal was required in the area.

Characterization Surveys performed within this Survey Area consisted of a 100% beta scan and i

the collection of 745 smears for removable surface activity. Except for the east half of the south l

' wall which was not scanned due to a safety concern with work being performed in the overhead, the following areas of elevated activity were identified during the surveys:

Gamma isotopic analyses of dust samples collected from the cable trays exhibited cobalt-60 (Co-60) levels to 6.7E-4 pCi/g. The presence of cesium-137 (Cs-137). cesium-134 (Cs-134) and europium-152 (Eu 152) was also noted in the dust samples. The overhead areas were later cleaned by vacuuming and wiping down all accessible surfaces. Several months later, surveys indicated removable surface activity to 1,500 dpm/100 cm2 on -

several smears taken on the overhead structures.

=

_ Removable surface activity to 1,000 dpm/100 cm2 in twenty-two locations on the west wall. The wall was subsequently wiped down and post decontamination surveys indicated removable surface activity levels were less than 550 dpm/100 cm2.

Lead shot found in the penetration frame on the PCRV wall was sampled. Gamnia isotopic analyses of the samples indicated Co-60 levels of 7.3E-8 pCi/g and Cs-137 levels of 3.9E-7 Cilg. 'The dose assessment of these quantities using Microshield algorithma indicated a dose rate of 2.4E-2 pR/hr.

Total surface activity greater than 3,000 dpm/100 cm2 to 150,000 dpm/100 cm2 on the t l

overhead cable trays.

Total surface activity to 3,400 dpm/100 cm2 in two locations on the grating toe plate in the east portion of the Survey Area.

1 Initially, high background measurements on the PCRV Wall I-VI at the kerf cut locations l

'j prevented extensive surveys in these areas. Subsequent background surveys at the two locations o

l ranged from 600 dpm/100 cm2 to 26,900 dpm/100 cm2 and 400 dpm/100 cm2 to 500 dpm/100 cm2 at 1 meter from the penetration. These two locations required decontamination or groming prior to Final Surveys.

All areas of elevated activity were decontaminated until total and removable surface activity l

levels were confirmed as less than 3,000 dpm/100 cm2 and 550 dpm/100 cm2 respectively.

i During an airborne radioactivity event that occurred on the Refuel Floor in January 1996, widespread contamination was disbursed into the Survey Area. The entire area was wiped down l subsequent to the event until surveys confirmed total and removable surface activity levels were

! less than 3,000 dpm/100 cm2 and 550 dpm/100 cm2 respectively.

i i

i l-l Page 3

1 1 (

Isolation and Control Measures: Level 2 Controls Prior to the final survey of Group F Survey Areas, training sessions were held with site assigned

] personnel regarding final survey isolation and control measures.

No use, storage or movement of radioactive material was permitted in this Survey Area after i

initiation of final survey measurements without authorization from the Technical Project Supervisor (TPS) and the Final Survey Lead Engineer (FSLE). Radioactive material moved to j

this area was not permitted to have removable surface activity in excess of 250 dpm/100 cm 2.

i

} The configuration of the Level 10 West - SW General Area during final survey activities was 7 as follows:

1. The ACCS System, which was substantially contaminated, was removed from the Survey Area, i 2. The configuration of this Survey Area remained basically the same as the l configuration during operations, and

j. 3. The access to the Survey Area was posted with a Level 2 Isolation Label.

The above described configuration was the final configuration at completion of final survey

measurements. Configuration changes, subsequent to completion of final surveys, required notification of the Technical Project Supervisor (TPS) and the Final Survey Operations Supervisor (FSOS) and the approval of PSCo.

i For instances where remediation of Plant Systems and/or Penetrations was performed subsequent

to final survey of the Surfaces and Structures within a Survey Area, the final radiological t

condition of the Survey Area has been referenced in the respective Final Report for the Plant i System or Penetration.

, 1

! Survey Area

Conclusions:

e The results of total and removable surface activity measurements and exposure rate

measurements collected within this Survey Area meet the criteria for release for unrestricted use. i i

Survey Area

References:

1

Isolation Report IR-1132

ROR %-004 i

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C Scientific Ec: logy Group, Inc.

Radiological Engineering & Decommissioning Services gggg

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Fort St. Vrain Nuclear Generating Station Decommissioning Project Release Record - Survey Unit location Code: F0115EZ001BZ Group ID: Survey Area Number Surface Category Survey Unit Classification EZ001 F 0115 I *"8' # "8' and . (Suspect Affected) l Structures / Equipment)

Survey Reason:

T01 - Initial Final Release G01 - Investigation R01 - Remediation Survey Unit

Description:

Level 10 West - SW General Area, Floor, Walls, Ceiling, and Structures / Equipment Survey Unit Medium: Bare Interior Concrete, Generic Material l Survey Unit Decommissioning and Remediation Activities:

Five areas were remediated within this Survey Unit subsequent to initiation of final surveys (see Investigation No.1 dated 09/30/96). See Survey Area Decommissioning and Remediation Activities Section of this release record for activities performed prior to initiation of final surveys.

Page 6 l l

I Survey Design:

4 Measurement Type No. of Steasurements Description

• 0#E2 SC*" ^ Scanned t00'"r of the accessible surfaces.

Nine areas of elevated activity were identified.

Initially collected 480 tota surface setivity i

measurements at grid intersections. Collected 9 j

additional measurements on areas of elevated activity identified during the scan. Only 6 of the i

additional measurements and i regular SNlt were above the guideline value.

Total Surface 523 Collected 6 investigation measurements of which 5 Activity confirmed the areas of elevated activity. Deleted 1 initial measurement and remediated 5 areas of elevated activity. Collected 35 remediation measurements and deleted 6 initial measurements.

Collected 5 investigation measurements at an area

of elevated activity which was not feasible to remediate.

Collected exposure rate measurements with hiicroSpec 2 at I meter from marked locations on Exposure Rate 10 the floor. These measurements satisfied the required l

measurements for the floor, walls and l structures / equipment below two meters.

py Smears 523 Collected smears at the same survey measurement locations as the total surface activity measurements.

Survey Unit Investigations:

Investigation No.1 09/30/ %

The results of the Initial Survey for location code F0115EZ001BZT01 indicated seven survey measurement locations (SMLs) with elevated results. The results at SMLs 289,481,482,484 485,486 and 487 exceeded the guideline value for total surface activity (TSA). Removable surface activity for each of the above survey measurement locations was less than Administrative Action Levels. The total and removable surface activities for all seven SMLs are listed below:

Total Surface Activity Removable Surface Activity SML Download dpm/100 cm2 RC dpm/100 cm2 289 1937-3 4,106 26.92294 -1.3 481 1260-1 11,260 26.92486 456.7 482 12,032 26.92487 162.5 484 4,439 26.92489 17.7 485 6,474 26.92490 26.9 486 1267-1 25.306 26.92491 15.4 487 1265-1 6,649 26.92492 -3.0 Page 7

, C l Survey Unit Investigations (continued):

SMLs 481 through 489 were identified during the Initial 100% Scan Survey and were collected

in addition to the initially prescribed 480 measurements. The net total and removable surface activity results of SMLs 483,488 and 489 were not above the Administrative Action Level.

' SMLs 289,484 and 486 were located on structures / equipment, SMLs 481 and 482 were located on the I-beam under Level 11 floor grating, SML 485 was located on the floor and SML 487 was located on a grouted area of the external wall of the PCRV approximately 3 meters above the floor level. No other SMLs indicated activity greater than the action levels.

Instructions were written and Investigation Surveys were performed using survey reason G01.

SMLs 487,289,481,482,484,485 and 486 were collected in download 2087-3 at the same l location as the original elevated measurements from downloads 1260-1,1265-1,1267-1 and '

1937-3 to investigate the elevated activity identified during the scan survey. The following

, measurement results were obtained from the Initial and Investigation Surveys: ,

SML No. Initial TSA Initial RSA Invest. TSA Invest. RSA (dpm/100 cm2) (dpm>100 cm2) (dpm/100 cm8) (dpm/100 cm2)

289 4.114 -1.3 8,713 231.7

481 11,532 456.7 7,354 126.0 l 482 12,306 162.5 8,085 307.5 i 484 4,700 17.7 4,256 17.9

, 485 6,738 26.9 6,711 36.3 3 486 25,364 15.4 194 13.3 7 487 6,646 -3.0 8,717 -0.5 t

The measurement for SML 486 failed to identify the initial elevated measurement. The j remaining measurements were elevated and confirmed the initial activities. Remediation was

required at SMLs 289,481,482,484 and 485.

For SMIs 289. 481. 482. 484 and 485: Remediation measures were applied to the areas surrounding SMLs 289,481,482,484 and 485 and surveys were performed following the cleanup. The Remediation Surveys required performance of 100% scan surveys within the vicinity of each elevated measurement and the collection of a minimum of 30 total and 3 removable surface activity measurements from the surfaces encompassing the locations of the i

elevated measurements. The following measurements results were obtained from the

Remediation Surveys:

i SML No. Remediation TSA Remediadon RSA (dpm/100 cm2) (dpm/100 cm8) 289 1,407 11.0 481 399 -0.5 482 -83 -5.1 j 484 267 4.1 485 1,130 13.3 4

a Page 8 i .

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/ I l

Survey Unit hwestigations (continued): i l

The 35 total and removable surface activity measurements collected for the Remediation Survey I confirmed that the remediation was successful. Based on the results of the Remediation Survey, the following actions were taken:

The Initial total and removable surface activity measurement results for SMLs 289,481, 482,484. 485 and 486, collected in downloads 1260-1,1267-1 and 1937-3, were deleted

) from the measurement database and were not used for reporting purposes.

The Investigation total and removable surface activity measurement results for SMLs 4

289, 481, 482, 484 and 485, collected in download 2087-3, were deleted from the measurement database and were not used for reporting purposes.

?

The Investigation total and removable surface activity measurement results for SML 486, collected in download 2087-3, were added to the measurement database and were used i for reporting purposes.

T The 35 remediation total and removable surface activity measurement results for SMLs 289, 481, 482, 484 and 485, collected in download 2087-3, were added to the measurement database and were used for reporting purposes.

For SML 487: Remediation measures were not applied in this instance because SML 487 i occurred on a penetration which had been grouted. Scans conducted on the surfaces around

i SML 487 did not identify any areas of elevated activity within the square meter surrounding the '

j elevated measurement. Four additional total surface activity measurements (SMLs 520-523 in

' download 2089-3) were collected within the same square meter as SML 487. These measurements totaled 370 dpm/100 cm2, 705 dpm/100 cm2, 721 dpm/100 cm2 and 1009

, dpm/100 cm2 respectively, which also indicated that the elevated activity was localized. Using the Investigation value of 8,717 dpm/100 cm2 for SML 487, which was higher than the initial j

elevated measurement, a mean of 2304 dpm/100 cm2 was calculated for the square meter containing SML 487. The average activity for the square meter was less than the guideline 3

value of 4,000 dpm/100 cm2 and the maximum activity was less than three times the guideline value. Based on the results of the Investigation Survey, the following actions were taken:

=

! The Initial total and removable surface activity measurement results for SML 487, collected in download 1265-1, were deleted from the measurement database and were not i i

used for reportmg purposes.

]

=

The Investigation total and removable surface activity measurement results for SMLs  !

487, collected in download 2087-3, were added to the measurement database and were j used for reporting purposes.

i The Investigation total and removable surface activity measurement results for SMLs 520-523, collected in download 2089-3, were added to the measurement database and I were used for reporting purposes.  !

i No further actions were required.

Page 9 l 1

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Compilation of Statistical Summaries Total Surface Activity - Beta Survey Exposure Rate - Gamma Survey ~ 5[5@

m==f :::, a-Removable Surface Activity - Beta Survey -

l Location Code: F0115EZ0018Z l i I

, Medium Codes: B0002, BMC01, G9999 1

4 Comments: Total Surface Activity (TSA) reponed in Net dpm/100 cm2 Exposure Rate (ER) reported in Net pR/hr.

Minimum Detectable Activity and Critical Level not calculated for exposure rate.

Removable Surface Activity (RSA) reported in Net dpm/100 cm2

)

I TSA ER RSA i i

Upper Confidence Limit (UCL) 240.8 1.5 4.5 '

Mean 205.2 1.2 4.0 Maximum 8,716.7 2.2 44.1 Minimum -529.6 0.7 -6.3 Standard Deviation 494.8 0.5 7.0 Minimum Detectable Activity 688.2 N/A 25.4 Critical Level 323.6 N/A 9.3 l Samples Reported 523 10 523 Samples Prescribed 480 10 480 Page 1: ERGS:V2.15.1.a.10.1.96 Page 23

i Statistical Summary - '

Total Surface Activity - Beta Survey

. ._ _[_ ,

1 Location Code: F0115EZ001BZ j Survey Reasons: G01 - Investigation. R01 - Remediation, T01 - Initial Final Release l

Medium Codes: B0002, BMC01 l

i Net dpm/100 cm2 l Upper Confidence Limit (UCL) 240.8 l 4

l Mean 205.2 l

l Ma Jmum 8,716.7 l

l Mirimum -529.6 l

[Ttandard Deviation 494.8 l l Minimum Detectable Activity 688.2 l l Critical Level 323.6 l )

I l Samples Reported 523l l Sampies Prescribed 480l  !

Tests Performed l Samples Reported greater than or equal to Samples Prescribed YES l Passed l MDA < 2,000.0 dpm/100 cm2 YES l Passed l Percent of Samples > 3,000.0 dpm/100 cm2 0.4 l Passed (5) l Number of Samples > 4,000.0 dpm/100 cm2 1 l Flaggd (61) l UCL of Mean less than or equal 4,000.0 dpm/100 cm2 YES l Passed (5) 25 % Test (61) Single Measurement Test, See Investigation Section Page 1:TSABS:V2.15.1.a.10.1.%

Page 24 F SR. STAT FSL

l 1

Corrected Field Activity Values C Total Surface Activity - Beta Survey ImE

.. M. .

Location Code: F0115E%C01BZ Comments: Activity reported in Net dpm/100 cmi.

4 4 Underlined values exceed the critical level.

Bold values exceed 3.000 0 dpm/100 cm2. Italic values exceed 4.000.0 dpm/100 cm2 l.ocation #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location #

Code Activity Reason Station #

Code 80002 1922-3 358 -18.1 T01 359 171.8 360 -251.9 361 128.0 362 25.7 363 -76.6 364 -91.2 365 376 4 366 -135.0 367 -3.5 368 244.9 369 -201.2 370 -3.5

371 -3.5 372 580.9 373 405.6 374 303.3 375 -149.6 376 11.1 377 215.6 378 142.6

379 274.1 380 376.4 381 551.7 s

382 54.9 383 54.9 384 128.0 385 -135.0 386 113.4 387 259.5 388 434 8 389 624.8 390 84.1 391 537.1 392 157.2 393 975.5 394 1 384.6 395 858 6 396 11.1 397 361 8 Page 2:TSABS:V2.15.1.a.10.1.96 Page 25

Corrected Field Activity Values -

Total Surface Activity - Beta Survey BTM

,p.

Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.  ;

Bold values exceed 3,000.0 dpm/100 cm2 Italic values exceed 4,000.0 dpm/100 cm2 l.ocation #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity l Reason Code Station #

Code B0002 1922-3 398 259.5 T01 399 361 8 400 478.7 401 1.530.7 402 171.8 i 403 259.5 1 404 -251.9  !

405 -3.5 l 406 -178.9 l 407 -105.8 i

408 -208.1 1 409 40.3 410 98.8 l 411 230.3 412 -135.0 ,

413 -237.3 414 -427.3 415 -105.8 416 -164.3 417 -135.0 418 215.6 419 478.7 420 303.3 421 391.0 422 288.7 423 405.6 424 186.4 425 434 8 426 -178.9 427 113.4 428 11.1 429 -62.0 430 -178.9 431 157.2 432 230.3 433 -193.5 434 -529.6 435 -32.8 436 -3.5 437 288.7 Page 3:TSABS:V2.15.1.a.10.1.%

Page 26

l

. i Corrected Field Activity Values >

i Total Surface Activity - Beta Survey l-l53f5f@

. ggg Location Code: F0115EZ0018Z Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3,000.0 dpm/100 cm2. Italic values exceed 4.000.0 dpm/100 cm2 l_ocation #: Bold italics indicate surveyor identified elevated readings in addition to the

' prescribed, an asterisk indicates a count time less than !$ seccnds.

Medium Download # - Location # Activity Code Reason Station #

Code B0002 i

1922-3 438 84.1 T01  !

439 551 7 440 -120.4  ;

441 259.5 l 442 507 9 443 142.6 444 128.0 i 445 171.8 446 303.3 447 274.1 448 128.0 l' 449 11.1 450 420.2 451 40.3 452 420 2 453 157.2 454 128.0 455 69.5 456 595 6 457 40.3 458 98.8 459 288.7 460 244.9 461 259.5 462 -3.5 463 54.9 464 186.4 465 128.0 466 113.4 467 -76.6 468 11.1 469 142.6 470 4346 471 376 4 472 -47.4 473 303.3 474 157.2 475 215.6 476 171.8 477 244.9 Page 4:TSABS:V2.15.1.a.10.1.96 Page 27

1 I

i l 4

1 Corrected Field Activity Values -

I Total Surface Activity - Beta Survey ,,

S?@?

.7 l

Location Code: F0115EZ001BZ l

Comments: Activity reported in Net dpm/100 cm-Underlined values exceed the critical level.  :

Bold values exceed 3,000.0 dpm/100 cm:. Italic values exceed 4,000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identitled elevated readings in addition to the i prescribed. an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity l Reason Code Station # ,

. Code i B0002 1922 3 478 332.5 T01 i 479 -120.4 )

480 230.3 2087-3 487 8.716.7 G01 1267-1 488 2.673 3 T01 1922-3 489 2 261.3 2089-3 520 373.0 G01 521 709.0 1 522 725 0  !

523 1.013 0 BMC01 1922-3 1 711 1 T01 2 638.1 3 725 7 4 302.0 i 5 930.3 I 6 477.3 7 360.4 8 535 8 9 185.1 10 521 2 11 418.9 12 185.1 13 389.6 14 228 9 15 126.6 16 798 8 17 462.7 18 5796  ;

19 696.5 r 20 404 3 21 667 3 22 652.7 23 302.0 24 331 2 25 185.1 26 360.4 27 316 6 28 404.3 29 404.3 30 331.2 Page 5:TSABS:V2.15.1.a.10.1.96 Page 28

.. _J

( ..

Corrected Field Activity Values -

Total Surface Activity - Beta Survey 6Immr,._ f .

Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm2 I Underlined values exceed the critical level. '

Bold values exceed 3.000.0 dpm/100 cm2. Italic values exceed 4.000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescrtbed, an asterisk indicates a count time less than 15 seconds. l Medium Download # - Location # Activity Code Reason  !

Station # '

Code BMC01 1922-3 31 477 3 T01 32 345.8 33 316.6 34 287.4 35 82.8 i 36 477.3 l 37 68.2 38 404.3  !

39 418.9 40 754 9 l 41 53.6 42 243 5 43 389.6 44 302.0 45 389.6 46 214.3 47 345 8 48 82.8 49 -48.7 50 9.7 51 39.0 52 53.6 53 -121.8 54 170.5 55 -77.9 56 -19.5 57 82.8 58 97.4 59 -194.8 60 39.0 1

l 61 360.4 62 112.0 l 63 126.6 64 228 9 65 185.1 66 112.0 67 126.6 68 287.4 69 258.1 70 272.8 Page 6:TSABS:V2.15.1.a.10.1.96 Page 29

a

('

1 Corrected Field Activity Values ==

Total Surface Activity - Beta Survey REFa@ .

Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underimed values exceed the critical level.  ;

Bold values exceed 3,000.0 dpm/100 cm2, Italic values exceed 4,000.0 dpm/100 cm2  !

Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity Code Reason Station #

Code BMC01 1922-3 71 9.7 T01 72 -253.3 73 -297.1 74 -34,1 75 -209.4 76 -253.3 77 -63.3 78 9.7 79 -209.4 80 53.6 81 -209.4 82 39.0 83 -121.8 1 84 -107.2 85 -77.9 86 -180.2 87 -151.0 I 88 -48.7 89 -107.2 90 -92.5 91 53.6 ,'

92 -4.9 93 -34.1 3 94 375 0 {

95 -34.1 l 96 170.5 97 170.5 I 98 404.3 99 68.2 100 155.9 101 272.8 102 112.0 103 316 8 104 112.0 105 -48.7 106 -19.5 107 214.3 108 -107.2 109 -151.0 110 -136.4 Page 7:TSABS:V2.15.1.a.10.1.96 Page 30

V i

Corrected Field Activity Values '

Location Code:

Total Surface Activity - Beta Survey F0ll5EZ0018Z h@ m

'm_M Comments: Activity reported in Net apm/100 cm2 Underlined values exceed the critical level, i

Bold values exceed 3.000.0 dpm/100 cm2 Italic values exceed 4.000.0 dpm/l00 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the j prescribed, an asterisk indicates a couat time less than 15 seconds.

Medium Download # - Location # Activity Code Reason Station #

Code BMC01 i 1922 3 111 -107.2 T01 112 82.8 113 -165.6 114 -151.0 l 115 -151.0 t 1937-3 116 -39.4 i 117 169.3 l 118 211 0 119 405 8 120 670 1 1

121 238 8 l 122 58.0 123 252 8 124 141.4 125 183.2 126 16.2 i 127 280 6 128 -25.5 129 85.8 130 -11.6 131 -81.2 132 -122.9 133 16.2 134 -95.1 135 -11.6 136 -122.9 137 58.0 138 -67.2 139 211 0 140 -136.8 141 -81.2 142 -122.9 143 -109.0 144 -150.7 145 -81.2 146 85.8 147 St,.t-148 183.2 149 -262.0 150 -345.5 Page 8:TSABS:V2.15.1.a.10.1.96 Page 31

(

~ Corrected Field Activity Values Total Surface Activity - Beta Survey '"B"

% ass ,

Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3.000.0 dpm/100 cm2, Italic values exceed 4.000.0 dpm/100 cm2 '

Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed. an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity Code Reason Station #

Code BMC01 1937-3 151 16.2 T01 152 -150.7 153 308 4 l 154 -150.7 I 155 -25.5 156 44.1 157 16.2 158 -11.6 159 252 8 160 211.0 C. 503.2 162 544.9 163 308 4 164 419.7 165 364.1 166 197.1 167 141.4 168 127.5 169 141.4 170 16.2 171 294.5 172 99.7 l 173 85.8 174 -53.3 175 -11.6 176 350.1 177 127.5 178 16.2 i

179 141.4 180 350.1 181 155.4 l 1950-3 182 161.7 I

1937-3 183 2.3 184 -25.5

, 185 -164.6 186 238 8 187 294.5 i

188 405 8

. 189 391.9 l 190 350.1

( Page 9:TSABS:V2.15.1.a.10.1.%

Page 32

l

! Corrected Field Activity Values .

Total Surface Activity - Beta Survey M@@

Location Code: F0ll5EZ0018Z Comments: Activity reported in Net dpm/100 cm8 Underhned values exceed the critical level.

Bold values exceed 3.000.0 dpm/100 cm2 Italic values exceed 4.000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identitied elevated readings in addition to the presenbed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location #

Code Activity Reason I l Station #

Code  !

BMC01 .-

1937-3 191 i l 558 8 T01 192 44.1 193 405 8 194 141.4 195 183.2 196 30.1 197 294 5 198 197 1 199 141.4 200 378 0 1

201 -206.4

, 202 -25.5 203 -11.6 204 2806 205 197.1 206 266 7 207 336.2 208 336 2 209 30.1 210 586 7 211 308 4 212 419 7 213 197 1 214 71.9 215 30.1 216 2.3 217 58.0 218 1 155.4 219 -67.2 220 -25.5 l

l 221 85.8 i

222 -81.2 223 44.1 224 127.5 225 -39.4 226 224 9

. 227 238 8 228 127.5 229 30.1 230 -11.6 Page 10:TSABS:V2.15.1.a.10.1.96 Page 33 1_

(

Corrected Field Activity Values -

Total Surface Activity - Beta Survey EM@@

Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm3 Underlined values exceed the critical level.

Bold values exceed 3.f 0 dpm/100 cm2. Italic values exceed 4.000.0 dpm/100 cm2 I ocation #: Bold italics .adicate surveyor identified elevated readings in addition to the prescribed an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity Code Station # Reason

^

Code BMC01 1937-3 231 -150.7 T01 232 99.7 233 169.3  !

234 224 9 -

235 -53.3 l 236 -67.2 237 -11.6 t 238 71.9  !

239 211 0  ;

240 16.2 l

.~; 241 58.0 242 99.7 243 155.4 l 244 169.3 245 -109.0 246 99.7 247 336 2

.i 248 169.3 l 249 85.8 250 44.1 )

1950-3 251 972 5 252 596.1 1937-3 253 224.9 4

254 266.7 255 -53.3 256 169.3 257 44.1 258 224 9-259 -53.3 260 280.6 261 -39.4 262 2.3 263 308 4 264 183.2 265 58.0 266 280 6 267 252 8 268 113.6 269 322 3 270 197.1 Page 11:TSABS:V2.15.1.a.10.1.%

Page 34

{

t Corrected Field Activity Values -

Total Surface Activity - Beta Survey - l5@f3IIEI

_ . ._w Location Code: F0115EZ001BZ 1

Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level, Bold values exceed 3,000.0 dpm!!00 cm2. Italic values exceed 4,00().0 dpm/100 cm2  !

Location #: Bold itahes indicate surveyor identified elevated readings in addition to the prescribed, an astettsk indicates a count time less than 15 seconds.

Medium Download # - Location # Activity Code Reason I Station #

Code SMC01 ~

1 1937-3 27i 30.1 T01 272 670 1 273 113 6 j 274 85.8

' 275 85.8 276 266.7 277 -81.2 2

1 278 -109.0 279 58.0 280 113.6 281 224 9 282 350 1 283 4754 284 -67.2

' 285 155.4 ,

286 -136.8 l 287 -39.4 288 224 9 2087-3 289 1 407.3 R01 1937 3 290 183.2 Toi 291 127.5 292 99.7 i

293 141.4 294 351.1 295 308 4 296 433 6 297 -11.6 298 4336 299 350 1 300 127,5 301 197 1 302 16.2 303 -11.6 304 -53.3 305 16.2 306 378 0 307 391 9 308 71.9 309 405 8 310 238 8 Page 12:TSABS:V2.15.1.a.10.1.96 Page 35

C Corrected Field Activity Values -

Total Surface Activity - Beta Survey E3f5f3 7gg___;

Location Code: F0115EZ0018Z Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3.000.0 dpm!!00 cm2. [tatic values exceed 4 tKK).0 dpm/100 cm2 Location #: Bold italies indicate surveyor identified clevated readings in addition to the prescribed, an astertsk indicates a count time less than 15 seconds.

Medium Download # - Location #

Code Activity Reason Station #

Code BMC01 _

1937-3 311 141.4 T01 312 211.0 313 475 4 314 183.2 315 531 0 316 447 5 317 183.2 318 614 5 1950-3 319 263.0 1937-3 320 85.8 321 419 7 1950-3 322 480 2 1937-3 323 781 4 324 517 1 325 934 5 326 169.3 327 16.2 328 364.1 329 169.3 330 211.0 331 169.3 332 -25.5 333 -53.3 334 -53.3 335 -53.3 336 -11.6 337 252.8 338 16.2 339 -136.8 340 -53.3 l 341 -25.5

' 342 155.4 343 .211.0 344 -150.7 345 155.4 346 447 5 347 -25.5 348 322.3 349 -11.6 350 _ 238.8 Page 13:TSABS:V2.15.1.a.10.1.96 Page 36

1 J

l Corrected Field Activity Values Total Surface Activity - Beta Survey IFm-@rm 1

7. .. . _ _ _

i Location Code: F0115EZ001BZ I

Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 3,000.0 dpm/100 cm2. Italic values exceed 4.000.0 dpm/100 cm2 Location #: Bold italics indicate surveyor identified elevated readings in addition to the I prescribed, an asterisk indicates a count time less than 15 seconds.

Medium Download # - Location #

Code Activity Reason Station #

Code BMC01 1937-3 351 i 4058 T01 i 352 16.2 353 16 2 354 30.1 355 -109 0 i

356 169.3 357 -67.2 2087-3 481 3991 RO1 482 -83.1 1260-1 483 . 3.260.2 T01 2087-3 484 267 6 RO1  !

485 1.129 7 486 194 5 G01 490 -97.7 RO1 491 -68.5 492 92.2 493 -112.3 494 282.2 495 121.5 496 355.3 497 121.5 498 326 0 499 106.8 500 574 4 501 355 3 502 150.7 503 223.7 504 705.9 505 9836 506 676 7 507 428.3 508 340 6 509 296 8 510 150.7 511 121.5 512 267 6 513 179.9 514 253.0 515 925 1 516 -97.7 Page 14:TSABS:V2.15.1.a.10.1.96 Page 37

(-

Corrected Field Activity Values . _.

s Total Surface Activity - Beta Survey ., ,k _.,

Location Code: F0ll5EZ001BZ Comments: Activity reported in Net dpm/l00 cm2 Underlined values exceed the critical level.

Bold values exceed 3.000.0 dpm/100 cm2, Italic values exceed 4.000.0 dpm/100 cm2 Location #: Bold italics mdicate surveyor identified elevated readings in addition to the

prescribed, an asterisk mdicates a count time less than 15 seconds.

Medium Download # - Location # Activity

Code Reason Station #

Code j BMC01

2087-3 517 -185 4 RO1 518 106 8 .

j 519 33.8 l

~

l 4

s 4

a i

4 1'

9 J

Page 15:TSABS:V2.15.1.a.10.1.96 Page 38

.f J

i.

b 4

l Graph of Activity versus Location Number -

,! Total Surface Activity - Beta Survey .

i. . . - - . ~ &.

i Location Code: F0115EZ001BZ 1 I

4 .

i i,

Survey Reasons: G01 - Investigation. ROI - Remediation. T01 - Initial Final Release 4

1 2

1 1

, Medium Codes: B0002, BMC01 i

1 1

4 l

i

, 1 A

i Average Guideline Value 4000.0 dpm/100 cm3 4

I 9000

+

8500+f ---------------- ---- -----... -- - ----- -----------

o i

i 8000- ----------------- ------------------------------------- ------------

! 75001------------------------------------------------------ ------------

t 7000 . . . . . . . . . . . . . . - - - - - . - . . . - - - . . . . . - - . - . - - . - . . . . . - . . . . - - - . .......-....

6500- ---------------------- -------------------------------- ------------

i 1

3 6000--...--......--.....--......................-........... .--..........

} 5500------------------------------------- ------------------ ------------

l.

"y5000~}----------------------------------------------------

u

} g4500;------------------------------------------------------- ------------

1 - t

- 4000 ..--.... j 4

.o 3500 . . . . . . . . . . . . . . . . . - - - . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . '

g z 3000-------------------------------------------------------erj ------------

4 2500- ------------------------------------------------------- .,------------

3 .

. 2000- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ------------

d

1500- -------------------------------y----------=---------2'------------

k 1000 s - - - - - - - - - - - - - - - - - - - - - - - - - - . - - - - - - . - - - - - - h, - - - - - - - - 1 e . - - - - - - - -

O . . . 2. .. m g.n sa + ; n- r .e {e 1

.4 500 _ ? ._ _' ._

= * *

o. ., , - . . - _ . n, . .q w .

me 500- ........ ,.. .... v.-.........-----...---

,..- ..... ; ,---- . e 4 ------------------

-1000 '

1 0 100 2b0 3bo 4bo 500 6bo j

Location Number 4

1 4

Critical Level --.-- M D A 4

--.-- Average Guideline Value .-.-- Activity 1

i 4

4 f

3 i

,! Page 16:TSABS:V2.15.1.a.10.1.96 Page 39 4

i

Summary of Background Correction Values C Total Surface Activity - Beta Survey Fm2f52 37 . g.

Location Code: F0115EZ0018Z Survey Reasons: G01 - Investigation. ROI - Remediation. T01 - Initial Final Re' ease l

1 Comments: Field Background (Bkg) reported in cpm / detector area.

Medium Bkg reported in dpm/100 cm2 I

Field Bkg averaged over all reported Field Bkg samples for each medium surveyed. '

Field Bkg Count time averaged ov r all reported samples for each medium surveyed.

Download # Medium Count Field Medium

-Station # Code Time Bkg Bkg 1267 1 80002 60.0 340.3 767.0 1922-3 B0002 60.0 331.0 767.0 2087-3 B0002 60.0 255.8 767.0 2089-3 B0002 60.0 275.0 767.0 1260-1 BMC01 60.0 262.8 0.0 l 1922-3 BMC01 60.0 253.3 0.0 1937-3 BMC01 60.0 231.3 0.0 1950-3 BMC01 60.0 227.3 0.0 2087-3 BMC01 60.0 198.8 0.0 i i

I 1

Page 17:TSABS:V2.15.1.a.10.1.% m_**

• Page 40

i I

l l

Summary of Minimum Detectable Activity (MDA) -

l5MM Tctal Surface Activity - Beta Survey

_ .._.; g

. . - . l j

Location Code: F0115EZ001BZ l

Survey Reasons: G01 - Investigation, ROI - Remediation, T01 - Initial Final Release

i Comments: The Statisical Summary pace includes the maximum MDA and associated critical !cvel shown -  !

below to demonstrate compliance with FSV requirements for minimum detection sensitivity.  !

MDA and Critical Level reported in dpm/100 cm2 Count Time averaged over all reported samples for each medium surveyed.

Download # Medium Count Critical

-Station # MDA Code Time Level 1267-1 B0002 15.0 323.6 2089-3 688.2 B0002 15.0 317.9 679.1 1922-3 B0002 15.0 312.5 664.6 2087-3 B0002 15.0 290.0 619.6 1922-3 BMC01 15.0 213.9 467.3 1 1260-1 BMC01 15.0 209.2 456.5 1950-3 BMC01 15.0 200.8 440.8 1937-3 BMC01 15.0 194.6 426.9 2087 BMC01 15.0 189.4 418.5 i

l I

I i

l l

i i

l i

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t 4

Summary of Efficiency Values Total Surface Activity - Beta Survey g, ,

Location Code: F0115EZ001BZ Survey Reasons: G01 - Investigation, R01 - Remediation, T01 - Initial Final Release i

Comments:

1 I

Detector Detector Download # Efficiency Model Scrial Number -Station #

^

LMI 43-1068 PR126897 1260-1 0.228 LMI 43-1068 PR126897 1267-1 0.212 LMI 43-106B PR126897 1922-3 0.219 LM143-106B PR126897 1937-3 0.230 LMI 43-1068 PR126897 1950-3 0.221 1 LMI 43-106B PR128916 2087 3 0.219 LMI 43-106B PR128916 2089-3 0.200 s

I i

i Page 19:TSABS:V2.15.1.a.10.1.96 Page 42

7-Survey Detection Equipment Used Total Surface Activity - Beta Survey g, Location Code: F0115EZ001BZ Survey Reasons: G01 - Investigation, R01 - Remediation, T01 - Initial Final Release Medium Codes: B0002, BMC01 I

l Download # - Survey User ID M2350 S/N Detector Station Id S/N 1260-1 JJA7821/126196 126196 PR126897 l 1265-1 LCF0451/129407 129407 PR133875 1267-1 JJA7821/126196 126196 PR126897  !

1875-3 LCF0451/129407 129407 PR133875 1922-3 JJA7821/126196 126196 PR126897 1937-3 JJA7821/126196 126196 PR126897 1950-3 JJA7821/126196 126196 PR126897 i 2087-3 JPC7742/126212 126212 PR128916 2089-3 JPC7742/126212 126212 PR128916 i I

Program Version: V2.15.1.a.10.1.96 Report Printed At: 06:36:43 Phe on 10/07/96 Total Pages: 20 Page 20:TSABS:V2.15.1.a.10.1.%

Page 43

. .. .- . . . . ~ .- -- . - . . . ..

(~~

! Statistical Summary u Exposure Rate - Gamma Survey 55 Location Code: F0115EZG01BZ Survey Reason: T01 - Initial Final Release J

Medium Code

G9999 i

a Net pR/hr i l Upper Confidence Limit (UCL) 1.5 l l Mean 1.2 l Maximum 2.2 l Minimum 0.7 l l Standard Deviation 0.5 :

I l Samples Reported 10l l Samples Prescribed 10l Tests Performed l Samples Reported greater than or equal to Samples Prescribed YES l Passed Counting interval greater than or equal to 300.0 seconds YES l Passed l Number of Samples > 5.0 gR/hr 0 l Passed (7) l Number of Samples > 10.0 pR/hr 0 l Passed (8) q [TJCL of Mean less than or equal 5.0 pR/hr YES l Passed (7) Single Measurement Test (8) Single Measurement Test Page 1: ERGS:V2.15.1.a.10.1.%

rs swrn

l l

V Corrected Field Exposure Rate Values =

Exposure Rate - Gamma Survey , FaErs

,,, g, Location Code: F0115EZ001BZ Comments: Exposure rate reported in Net pR/hr.

l Bold values exceed 5.0 pR/hr, Italic values exceed 10.0 gR/hr.

Location #: Bold italics indicate surveyor identified elevated readings in addition to the prescribed, an asterisk indicates a count time less than 300 seconds.

I Medium Download # - Location # Exposure Rate Code Reason Record Id Code  !

G9999 F115E01.001 -655 1 1.5 T01 l F115E01.002 -655 2 1.1 .

F115E01.003 -655 3 0.7 I

F115E01.004 -655 4 1.5 F115E01.005 -655 5 2.2 F115E01.006 -655 6- 1.5 F115E01.007 -655 7 0.7 F115E01.008 -655 8 0.7 F115E01.009 -655 9 0.7 F115E01.010 655 10 1,1 l

1 1

1 Page 2: ERGS:V2.15.1.a.10.1.96 Page 45

4 b

~

Graph of Exposure Rate versus Location Number -

Exposure Rate - Gamma Survey EM

• ""'::cL" =

j Location Code: F0115EZ001BZ t

(

Survey Reason: T01 - Initial Final Release i

l Medium Code: G9999 i

l I

i 4

Average Guideline Value 5.0 pR/hr 15 i

i t

10- ............. -

I J

2 j 5- ----...r - - - - - -

1 e

N =

m. 0 1

Z 5 ......................................................................

10 ......................................................................

-15 , , l l 0 2 4 6 8 10 location Number

--.-. Average Guideline Value -.- Exposure Rate Page 3: ERGS:V2.15.1.a.10.1.96 Page 46 carn um

1 1

Survey Detection Equipment Used Exposure Rate - Gamma Survey EM@@  ;

1 Location Code: F0115EZ001BZ Survey Reason: T01 - Initial Final Release Medium Code: G9999 1

1 l

l l

I Record Id Survey User ID Detector Medium Code Background S/N Value 655 TR5723 95001 G9999 0.00 Program Version: V2.15.1.a.10.1.96 Report Printed At: 03:36:17 PM on 10/04/96 Total Pages: 4 Page 4: ERGS:V2.15.1.a.10.1.%

Page 47 Fma RYMXF9

. . - - - .- - . . - . _ . - _ . . - . - . . . .. . . ~ . . ~ _ . - _ - . - . . .

f 4

s Statistical Summary W Removable Surface Activity - Beta Survey Location Code: F0115EZ001BZ l

J j Survey Reasons: G01 - Investigation, R01 - Remediation, T01 - Initial Final Release i Medium Codes: B0002, BMC01 1

i i

l Net dpm/100 cm2 l l Upper Confidence Limit (UCL) 4.5 l l Mean 4.0 l j l Maximum 44.1 l Minimum -6.3l

, l Standard Deviation 7.0 l l l Minimum Detectable Activity 25.4 l J

l Critical Level 9.3 l j l Samples Reported 523l l l Samples Prescribed 480 l

, Tests Performed

! l Samples Reported greater than or equal to Samples Prescribed YES l Passed

l MDA < 187.5 dpm/100 cm2 YES l Passed l Percent of Samples > 562.5 dpm/100 cm2 0.0 l Passed (5) l l Number of Samples > 750.0 dpm/100 cm2 0 l Passed (6) l UCL of Mean less than or equal 750.0 dpm/100 cm2 YES l Passed (5) 25% Test (6) Single Measurement Test Page 1

RSABS:V2.15.1.a.10.1.%

e 48 P ETAT.FSL

(

Corrected Field Activity Values "*EE Removable Surface Activity - Be:a Survey lE3fd[Pn

, ,. , , 3 Location Code: F0ll5EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed $62.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 Medium RC# Location # Activity Code Reason Code 80002 26.92363 358 -0.7 T01 26.92364 359 -3.0 26.92365 360 1.6 26.92366 361 . 8.5 26.92367 362 -5.3 26.92368 363 3.9 26.92369 364 -5.3 26.92370 365 13.1 26.92371 366 3.9 26.92372 367 8.5 26.92373 368 -0.7 26.92374 369 -0.7 26.92375 370 -0.7 26.92376 371 20.0 26.92377 372 -3.0 26.92378 373 -0.7 26.92379 374 13.1 26.92380 375 3.9 26.92381 376 -0.7 26.92382 377 1.6 26.92383 378 1.6 26.92384 379 3.9 26.92385 380 3.9 26.92386 381 -3.0 26.92387 382 -5.3 26.92388 383 -3.0 26.92389 >

384 1.6 26.92390 385 -0.7 26.92391 386 20 0 26.92392 387 3.9 26.92393 388 -5.3 26.92394 389 -5.3 26.92395 390 1.6 26.92396 391 1.6 26.92397 392 -3.0 26.92398 393 1.6 26.92399 394 -0.7 26.92400 395 -3.0 26.92401 396 8.5 26.92402 397 15 4 Page 2:RSABS:V2.15.1.a.10.1.96 Page 49

C Corrected Field Activity Values 1 M

Removable Surface Activity - Beta Survey pmBM @

Location Code: F0115EZ001BZ l

Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpn:/iOO cm2 Medium RC# Location # Activity Code Reason Code 80002 26.92403 398 -5.3 T01 26.92404 399 -5.3 26.92405 400 -3.0 26.92406 401 -3.0 26.92407 402 -0.7 26.92408 403 -3.0 26.92409 404 1.6 26.92410 405 3.9 26.92411 406 -5.3 26.92412 407 -0.7 26.92413 408 -0.7 26.92414 409 . 26.9 26.92415 410 6.2 26.92416 411 10.8 26.92417 412 3.9 26.92418 413 . 24.6 26.92419 414 -3.0 26.92420 415 1.6 26.92421 416 6.2 26.92422 417 -0.7 26.92423 418 -0.7 26.92424 419 1.6 26.92425 420 3.9 26.92426 421 -3.0 26.92427 422 -0.7 26.92428 423 1.6 26.92429 424 -3.0 26.92430 425 -3.0 26.92431 426 -3.0 26.92432 427 3.9 26.92433 428 6.2 26.92434 429 -3.0 26.92435 430 -0.7 26.92436 431 -3.0 26.92437 432 -0.7 26.92438 433 -3.0 26.92439 434 -3.0 26.92440 435 -0.7 26.92441 436 -3.0 26.92442 437 6.2 Page 3:RSABS:V2.15.1.a.10.1.96 Page 50

.. .. .. .. - . . .. . .= _

(

' Corrected Field Activity Values '"

Removable Surface Activity - Beta Survey y$$$@

Location Code: F0115EZ001BZ 4

Comments: Activity reponed in Net dpm/100 cm2 4

Underlined values exceed the criticallevel.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 i

Medium RC# Location # Activity i

Code Reason i Code 80002 26.92443 438 3.9 26.92444 T01 439 -0.7 26.92445 440 1.6 26.92446 441 -0.7 26.92447 442 1.6

.# 26.92448 443 3.9 26.92449 444 6.2 26.92450 445 -3.0 26.92451 446 -0.7 26.92452 447 -3.0 26.92453 448 6.2 26.92454 449 l 3.9 i 26.92455 450 6.2 '

26.92456 451 3.9 26.92457 452 -0.7 26.92458 453 3.9 26.92459 454 3.9 26.92460 455 8.5 26.92461 456 3.9

! 26.92462 457 17 7 l g

I i 26.92463 458 3.9 26.92464 459 -3.0 26.92465 460 1.6 i 26.92466 461 6.2 l 26.92467 462 -0.7 26.92468 433 -0.7 26.92469 464 -0.7 l 26.92470 465 1.6 l 26.92471 466 3.9 26.92472 467 -0.7 26.92473 468 1.6 26.92474 469 -0.7 26.92475 470 -5.3 26.92476 471 -3.0 26.92477 472 -5.3 26.92478 473 3.9 26.92479 474 fL5 26.92480 475 -3.0 26.92481 476 6.2 26.92482 477 1.6 Page 4:RSABS:V2.15.1.a.10.1.%

Page 51

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i Corrected Field Activity Values -

Removable Surface Activity - Beta Survey IE5[$LFq '

,= )

Location Code: F0115EZ001BZ I

Comments: Activity reported in Net dpm/100 cm*.

Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm3, Italic values exceed 750.0 dpm/100 cm2 l

l Medium RC # Location # Activity Code Reason Code 80002 26.92483 478 3.9 26.92484 T01 479 -0.7 26.92485 480 3.9 27.00002 487 -0.5 G01 26.92493 488 1.6 T01  ;

26.92494 489 6.2 27.00134 l 520 2.8 G01 I 27.00135 521 -0.5 27.00136 522 -5.1 27.00137 523 -0.5 l

i BMC01 26.92006 1 1.3 T01 26.92007 2 . 113 '

26.92008 3 -1.3 26.92009  !

4 3.8 26.92010 5 8.8 26.92011 6 6.3 26.92012 7 3.8 26.92013 8 . 11.3 26.92014 9 3.8 26.92015 10 8.8 26.92016 11 6.3 26.92017 12 11.3 26.92018 13 16.4 26.92019 14 3.8 26.92020 15 13.9 26.92021 16 8.8 26.92022 17 3.8 26.92023 18 6.3 26.92024 19 -1.3 26.92025 20 1.3 26.92026 21 3.8 26.92027 22 8.8 26.92028 23 -1.3 26.92029 24 1.3 26.92030 25 6.3 26.92031 26 -1.3 26.92032 27 3.8 26.92033 28 1.3 26.92034 29 1.3 26.92035 30 3.8 Page 5:RSABS:V2.15.1.a.10.1.96 Page 52 '6

I Corrected Field Activity Values Removable Surface Activity - Beta Survey E

.===M5 FM

= _ gg Location Code: F0115EZ001BZ Comments: Activity reponed in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 sm2. Italic values exceed 750.0 dpm/100 cm2 i i

Medium RC# Location #

Code Activity Reason Code BMC01 26.92036 31 -1.3 T01 26.92037 32 -1.3 26.92038 33 -1.3 26.92039 34 6.3 26.92040 35 1 3.8 1 26.92041 36 3.8 26.92042 37 3.8 l 26.92043 38 -1.3 26.92044 39 16 4 26.92045 40 1.3 1

26.92046 41 11.3 26.92047 42 -3.8 26.92048 43 11 3 26.92049 44  ;

1.3 26.92050 45 i 6.3 26.92051' 46 -1.3 26.92052 47 1.3 26.92053 48 6.3 26.92054 49 6.3 26.92055 50 -3.8 26.92056 51 1.3 26.92057 52 1.3 26.92058 53 -1.3 26.92059 54 1.3 20.92060 55 1.3 26.92061 56 1.3 26.92062 57 3.8 26.92063 58 -6.3 26.92064 59 -1.3 26.92065 60 16 4 26.92066 61 3.8 26.92067 62 11.3 26.92068 63 1.3 26.92069 64 . 16.4 26.92070 65 16 4 26.92071 66 8.8 26.92072 67 _ 18.9 26.92073 68 8.8 26.92074 69 21 4 26.92075 70 1.3 Page 6:RSABS:V2.15.1.a.10.1.96 Page 53

f Corrected Field Activity Values .-

Removable Surface Activity - Beta Survey Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 Medium RC# Location # Activity Code Reason Code  !

BMC01 26.92076 71 3.8 26.92077 T01 72 16 4 26.92078 73 6.3 26.92079 I 74 8.8 26.~i2000 75 -3.8 26S?081 76 3.8 26.92082 77 3.8 26.92083  !

78 1.3 26.92084 79 3.8 26.92085 80 3.8 26.92086 81 -1.3 26.92087 82 3.8 26.92088 83 6.3 26.92089 84 23.9 26.92090 85 -1.3 26.92091 86 1.3 26.92092 87 -3.8 26.92093 88 8.8 26.92094 89 1.3 i

26.92095 90 1.3 26.92096 91 8.8 26.92097 92 l

-1.3 26.92098 93 1.3 26.92099 94 1.3 26.92100 95 3.8 26.92101 96 3.8 26.92102 97 6.3 26.92103 98 8.8 26.92104 99 -3.8 26.92105 100 8.8 26.92106 101 -1.3 26.92107 102 3.8 26.92108 103 -1.3 26.92109 104 -1.3

'26.92110 105 -1.3 26.92111 106 1.3 26.92112 107 3.8 26.92113 108 6.3 26.92114 109 -3.8 26.92115 110 -1.3 Page 7:RSABS;V2.15.1.a.10.1.96 Page 54

(

Corrected Field Activity Values '-

I Removable Surface Activity - Beta Survey 555@  !

i Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 l

1 Medium RC# Location # Activity

Code Reason '

Code

BMC01 l 26.92116 111 1.3 1

s T01 26.92117 112 6.3 4

26.92118 113 -3.8 1 26.92119 114 3.8

! 26.92120 115 t 1.3 26.92121 116 -1.3 26.92122 117 . 26.5 26.92123 118 . 11.3 26.92124 119 3.8 26.92125 120 3.8 i

1 26.92126 121 21.4 26.92127 122 3.8 26.92128 123 -3.8 26.92129  !

124 -1.3 26.92137 125 6.3 26.92131 126 8.8 26.92132 127 8.8 26.92133 128 1.3 i 1 26.92134 129 -1.3  !

26.92135 130 16.4 26.92136 131 -3.8 I 26.92137 132 1.3 26.92138 133 1.3 1 26.92139 134 -1,3 26.92140 135 -1.3 26.92141 136 6.3 4

, 26.92142 137 1.3 t

26.92143 138 -1.3 26.92144 139 6.3 26.92145 {

140 3.8 l i

• 26.92146 141 -1.3 1 26.92147 142 3.8 '

26.92148 143 23.9

. 26.92149 144 3.8 26.92150 145 1.3

' 26.92151 146 -3.8 26.92152 147. 6.3 26.92153 148 6.3 26.92154 149 -6.3 26.92155 150 6.3 Page 8:RSABS:V2.15.1.a.10.1.%

Page $$ ' :-

(

1 Corrected Field Activity Values

_

Removable Surface Activity - Beta Survey Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level. t Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 I l

l Medium RC# Location # Activity Code Reason I Code {

BMC01  ;

26.92156 154 -6.3 T01 26.92157 li2 -1.3 26.92158 155 3.8 26.92159 154 3.8 26.92160 155 3.8 l

26.92161 156 -3.8 26.92162 157 1.3 l 26.92163 158 -3.8 '

26.92164 159 -1.3 26.92165 160 8.8 26.92166 161 3.8 26.92167 162 3.8 26.92168 163 1.3 26.92169 164 8.8 26.92170 165 _ 13.9 26.92171 166 6.3 26.92172 167 1.3 26.92173 168 6.3 26.92174 169 3.8 26.92175 170 11.3 26.92176 171 . 21.4 26.92177 172 18.9 26.92178 173 1.3 26.92179 174 1.3 26.92180 175 43 26.92181 176 '

26.92182 177 3.8 26.92183 178 1.3 26.92184 179 -1.3 26.92185 180 . 13.9 26.92186 181 1.3 26.92187 182 .. 18.9 26.92188 183 1.3 26.92189 184 31.5 26.92190 185 6.3 26.92191 186 1.3 26.92192 187 -3.8 26.92193 188 11.3 26.92194 189 1.3 26.92195 190 . 18.9 Page 9:RSABS:V2.15.1.a.10.1.96 Page 56

i Corrected Field Activity Values -

Removable Surface Activity - Beta Survey .

Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed $62.5 dpm/100 cm2. Italie values exceed 750.0 dpm/100 cm2 Medium RC # Location # Activity Code Reason Code BMC01 26.92196 191 8.8 26.92197 T01 192 11 3 26.92198 193 21 4 26.92199 194 6.3 26.92200 195 -1.3 26.92201 196 -1.3 26.92202 197 1.3 26.92203 198 -1.3 26.92204 199 -1.3 26.92205 200 8.8 26.92206 201 1.3 26.92207 202 6.3 1

26.92208 203 -3.8 26.92209 204 -1.3 26.92210 205 1.3 26.92211 206 23 9 26.92212 207 8.8 26.92213 208 . 18.9 26.92214 209 6.3 26.92215 210 3.8 26.92216 211 -1.3 26.92217 212 -1.3 26.92218 213 -1.3 26.92219 214 3.8 26.92220 215 -1.3 26.92221 216 -3.8 26.92222 217 1.3 26.92223 218 6.3 26.92224 219 1.3 26.92225 220 6.3 26.92226 221 -3.8 26.92227 222 1.3 26.92228 223 -1.3 26.92229 224 3.8 26.92230 225 -3.8 26.92231 226 8.8 26.92232 227 8.8 26.92233 228 1.3 26.92234 229 -3.8 26.92235 230 -6.3 Page 10:RSABS:V2.15.1.a.10.1.96 Page 57

C

1 Corrected Field Activity Values -

Removable Surface Activity - Beta Survey [$3@f5l 7., ._

Location Code: F0115EZ001BZ

• Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level. {

Bold values exceed 562.5 dpm/l00 cm2, Italic values exceed 750.0 dpm/100 cm .

4 Medium RC# Location # Activity Reason Code Code l BMC01 26.92236 231 11 ?.-

T01 l 26.92237 232 1.J 26.92238 233 1.3 i 26.92239 234 -3.8 26.92240 235 11.3 26.92241 236 3.8 1

26.92242 237 8.8 26.92243 238 8.8 26.92244 239 8.8 26.92245 240 13 9 26.92246 241 18.9 <

26.92247 242 1.3 26.92248 243 -6.3 26.92249 244 1.3 26.92250 245 -3.8 26.92251 246 -1.3 1 26.92252 247 6.3 26.92253 248 -3.8 26.92254 249 _ .1La 26.92255 250 3.8 26.92256 251 21.4 26.92257 252 13 9 26.92258 253 -1.3 26.92259 254 8.8 26.92260 255 6.3 26.92261 256 3.8 26.92262 257 3.8 26.92263 258 6.3 26.92264 259 1.3 26.92265 260 11 3 26.92266 261 6.3 26.92267 262 3.8 26.92268 263 6.3 26.92269 264 11.3 26.92270 265 1.3 26.92271 266 -1.3 26.92272 267 1.3 26.92273 268 6.3 26.92274 269 -1.3 26.92275 270 -1.3 Page 11:RSABS:V2.15.1.a.10.1.96 Page 58

C Corrected Field Activity Values -

Removable Surface Activity - Beta Survey lEM@@

g_ g Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/l00 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2. Italic value:; exceed 750.0 dpm/100 cm2

, Medium RC # Location # Activity Reason Code Code BMC01 26.92276 271 3.8 26.92277 T01 i 272 -1.3 26.92278 I 273 6.3 l 26.92279 274 6.3 '

26.92280 275 1.3 26.92281 276 1.3 26.92282 277 3.8 26.92283 278 11.3 26.92284 279 8.8 26.92285 280 6.3 26.92286 281 . 13.9 26.92287 282 -1.3 26.92288 283 1.3

'26.92289 284 -1.5 26.92290 285 1.3 26.92291 286 6.3 26.92292 287 1.3 26.92293 288 3.8 27.00009 289 11.0 R01 26.92295 290 -1.3 T01 26.92203 291 -3.8 26.92297 292 43 I 26.92298 293 1.'3 l 26.92299 294 1.3 I 26.92300 295 13 9 26.92301 296 11.3 I 26.92302 297 -3.8 I 26.92303 298 8.8 I 26.92304 299 8.8 26.92305 300 1,3 I

26.92306 301 -1.3 76.92307 302 -1.3 26.92308 303 -1.3 l i 26.92309 304 1.3 26.92310 305 3.8 26.92311 306 . . . 13.9 26.92212 l

307 . 26.5 26.92313 308 -1.3 26.92314 309 -1.3 26.92315 310 6.3 Page 12:RSABS:V2.15.1.a.10.1.96 Page 59

V Corrected Field Activity Values Removable Surface Activity - Beta Survey m

.=3f5fE1

_jgg txation Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 Medium RC # Location # Activity Code Reason Code BMC01 26.92316 311 -3.8 26.92317 T01 312 -1.3 26.92318 313 -3.8 26.92319 314 26.92320

. 26.5 l 315 11.3 26.92321 316 1.3 '

26.92322 317 . 11.3 26.92323 318 6.3 26.92324 319 1.3 26.92325 320 __ .18.9 26.92326 321 .. 11.3 26.92327 322 3.8 26.92328 323 6.3 26.92329 324 -3.8 26.92330 325 44 1 26.92331 326 -1.3 26.92332 327 3.8 26.92333 328 3.8 26.92334 329 41 6 26.92335 330 6.3 26.92336 331 11.3 26.92337 332 1.3 26.92338 333 6.3 26.92339 334 6.3 26.92340 335 8.8 26.92341 336 3.8 >

26.92342 337 3.8 26.92343 338 3.8 26.92344 339 -6.3 26.92345 340 3.8 26.92346 341 3.8 26.92347 342 3.8 26.92348 343 3.8 j 26.92349 344 6.3 j

i 26.92350 345 6.3 26.92351 346 6.3 l i

26.92352 347 6.3 I 26.92353 348 3.8 26.92354 349 -3.8 26.92355 350 6.3 Page 13:RSABS:V2.15.1.a.10.1.%

Page 60

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Corrected Field Activity Values ~C Removable Surface Activity - Beta Survey EMIjM gg Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm8 Underlined values exceed the critical level.

Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm8 Medium RC# Location #

Code Activity Reason Code BMC01 26.92356 351 -3.8 26.92357 T01 352 -1.3 26.92358 353 1.3 26.92359 354 -1.3 26.92360 355 3.8 26.92361 356 1.3 26.92362 357 8.8 27.00010 481 -0.5 R01 27.00011 482 -5.1 26.92488 483 . 22.3 T01 27.00012 484 4.1 R01 27.00013 485 13.3 27.00008 486 13.3 27.00014 G01 490 1.8 R01 27.00015 491 6.4 27.00016 492 1.8 27.00017 493 11.0 27.00018 494 -5.1 27.00019 495 22.5 27.00020 496 1.8 27.00021 497 24.8 27.00022 498 -0.5 27.00023 499 , 8.7 27.00024 500 -2.8 27.00025 501 4.1 27.00026 502 4.1 27.00027 503 -2.8 27.00028 504 -0.5 27.00029 505 -0.5 27.00030 506 _._2LI 27.00031 507 -2.8 27.00032 508 6.4 27.00033 509 11.0 27.00034 510 8.7 27.00035 511 -0.5 27.00036 512 8.7 27.00037 513 6.4 27.00038 514 -0.5 27.00039 515 27.00040

__lLI 516 -0.5 Page 14:RSABS:V2.15.1.a.10.1.96 Page 61

C Corrected Field Activity Values ==

j Removable Surface Activity - Beta Survey S$$M

.u.- _.,., n. --

I Location Code: F0115EZ001BZ Comments: Activity reported in Net dpm/100 cm2 Underlined values exceed the criticallevel, Bold values exceed 562.5 dpm/100 cm2, Italic values exceed 750.0 dpm/100 cm2 j i

Medium RC# Location #

Code Activity Reason Code BMC01 27.00041 517 ~

27.00042 01 518 4'1 27.00043 519 1,8 l

i i

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Page 15:RSABS:V2.15.1.a.10.1.%

Page 62 l

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l Graph of Activity versus Location Number -

}

Removable Surface Activi:y - Beta Survey i

E Location Code: F0115EZ001BZ Survey Reasons: G01 - Investigation, R01 - Remediation T01 - Initial Final Release

< l 4

Medium Codes: B0002, BMC01 1 i 1

i 1

Guideline Value 750.0 dpm/100 cm8 j 800

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700- ---- ---------------..--,,,..,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,_

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1 600-1

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8 400----------------------------------------------------------------------

1

• 300- ---------------------------------------------------------------------

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Z 200- ------------------ ------------ -------------------------------------

100 - ---------------------------------------------------------------------

as 0

-100 ' '

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l l 0 100 200 300 400 500 600 Location Number

- Critical Level - -- MDA --.-- Guideline Value --.-- Activity Page 16:RSAb3:V2.15.1.a.10.1.96 Page 63

E l s .

I Laboratory Equipment Used i=

I Removable Surface Activity - Beta Survey Location Code: F0115EZ001BZ

, Survey Reasons: G01 - Investigation, R01 - Remediation, T01 - Initial Final Release l 1

Medium Codes: B0002, BMC01 Location # Range Survey User ID Laboratory Serial Equipment Number j i

289 CBA087G LB-5100W SN5100W 481 to 482 CBA0876 LB-5100W SN5100W l 484 to 487 CBA0876 LB-5100W SN5100W i 490 to 523 CBA0876 LB-5100W SN5100W 1 to 288 JJA7821 LB-5100W UNIT 2 l 290 to 480 JJA7821 LB-5100W 483 SN5100W JJA7821 LB-5100W SN5100W 488 to 489 JJA7821 LB-5100W SN5100W '

i Program Version: V2.15.1.a.10.1.96 Report Printed At: 03:30:27 PM on 10/04/96 Total Pages: 17 9

Page 17:RSABS:V2.15.1.a.10.1.% .,

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ATTACHMENT 6.3 + y SURVEY PACKAGE COVER SHEET -

Package Page 4 of N.M',Di4 i

?

y SURVEY PACKAGE PHASE 1 COMPLETION y GeneralInformation j Package 10 F0126 Building (s) Reactor Survey Area F0126 Elevation (ft) 4864 Survey Area Name j Level 11 Regenerator Heater Equip. Rm. e Drawing # RX_11 Package Description Survey Area Description i Level 11 Regenerator Heater Equip. Room The level 11 Regenerator Heater Equipment Room 4

is located on the south central side of level 10 in the Reactor Building. Access to the room is from the refuel floor on level 11.

4 Surface Grid Requirements f

[ Suspect affected survey units are gridded using a 1X1 meter grid size. Sample measurement locations (SML) will be marked on survey maps and/or survey ( s,t u 'pggdegnge here measurements are to be (

collected. SMLs will be labeled on floor, walf ,

6nd equipmint u aces. Appropriately sized areas will be identified or)

Hrwa.A U,overhpad evntw maps TWrv tois designate A !n twtim wherehwequipment

-thic x<w//,enGw measurements &nneedn iIi to be m collected.

/1m 1,?iN he Area Precaration Special Support Requirements fff O'Y 2 A WAf /kafS ISD NUkbd4itfNN6tuuy Y W '?l30l9V C/tM1N &

f y

None Specific Safety Precautions

• None

, gn. 1pf.ijns isolation Controls Specified and Scheduled to Commence ' Isolation Levelg .4c ef,eaiy. 6 7 No use, storage or movement of radioactive matenalis permitted. The Radweste Supervisor has been notoned that final surveys of this area (s) are to begin and that no radioactive material shallbe authonzed in this area (s).

.R M 't All access points to this area (s) shall be posted with a Level)lsolation Labelic/4lt?c. & k '1 AWit%

/

Finalcon&guration of this area (s)is to be maintained. Authorization must be obtained pnor to the painting of surfaces, structural renovation and/or removal of components from this area (s).

Field Operations Coordinator: /~ Date. did Notes '

The general area addresud by the survey package (e 3. machine shop hot sernce racinny. PCRV. etc)

Scarfoldmg. tadders, temp lighting installation or a power supply, etc.

3

, Confined space entry permas etc. Interface with MK as necessary.

Isolation requirements in accordance with procedure FSV $C-I-108.

• Final Survey Isotasion and Control Measures."

SURVEY PACKAGE PHASE 1 COMPLETION The survey package instructions are prepared r and ready for implementation. Signed. "

Date: #'

/ Technical Projects Superwsor Signed. ef h_ Date:

, Final Servey 4 ad Ergvneer Signed Date:

M//Y l'inal Survey Opes 6hons Superwsor SC.FRS.102.3 4 M021100 FILENAME e AT63_RO FSLi ATT63 FoL

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ATTACHMENT 6.3 (continued)

] SURVEY PACKAGE COVER SHEET Package Page 2 of G '

R lPackageID F0126 l Building (s) l Elevation (ft)4864 l Drawing # RX_11 l Survey Area F0126 l

} Reactor j Package Description 1

Level 11 Regenerator Heater Equip. Room

SURVEY PACKAGE PHASE 2 COMPLETION l The initial survey instructions have been Jd i implemented and the survey measurements collected and reviewed for completeness in S

gned.

VFiefd operations cooedmator /

s~[ Date: ~7-2 '%

accordance with the survey Instructions. . /.

Signed: E Date: k

! Final Survey Opdral ns Supervisor Signed; bLVL Radio 6ogical Engtheer C l# '

' 4r _ Date: 7bOM6 '

i SURVEY PACKAGE PHASE 3 COMPLETION j Survey measurements and samples specified in the survey package instructions have been evaluated and any required / /

investigation or replacement surveys have been identified and performed. Final data Signed

M Date: 7/ 50/P/,

y oata Evaluation Engmeer ' /

q satisfies survey acceptance enteria and no /g outstanding surveys are pending Release o I record (r) for each survey unit are included in Signed. blA b _ UI . Date:

this survey package. Fmal Survey Lead { ngmeer 1

SURVEY PACKAGE PHASE 4 COMPLETION

!' losu equ r d evie ae Signed. U, i Date: 7 b N completed and the data analysis results Radiological Engineer meet acceptance enteria.

g g .

(7f Date' j Final Survey th ad Engmeer Signed: A .O f 5 "" 2 Date: 8!?<'!b

/ Technical Projects Supervisor Signed. 4 t- i, 4. r .* . r Date: f .2.<[fd

1. 1. f Project Radiation ProIection a r i

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] SC.FRS.102.3-4 M021100 FLENAME = AT63_RO FSL / ATT63 FDL

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ATTACHMENT 6.4 (Part 2) 3 y" SURVEY PACKAGE CORRECTION / CHANGE IIISTORY 8 Package Page Nof M t Package ID : F0126 f h initials / Date Chanae # Description of Chanae / Correction M h Initiator TPS FSLE FSOS gaaa 3-~- 4-ao-g mi re I s-._sf-cm, % g -.a c _ o r 3 m w ._ xww ;,.v a bt.. ec.,,. %e~.naa m i a c .r a WW p 2. . M *M ve V#s @M .

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FILENAME = AT642_RO RSL / ATT64_2 RDL ' ' *

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ATTACHMENT 6.4 (PART 2)

SURVEY PACKAGE CORRECTION / CHANGE HISTORY Package ID: F d 1 ~2 G Package Page Mof M Survey Package Correction / Change History l Initials /Date Change f Description Initiator TPS FSLE FSOS A sub-package ( Addendum 1) requmng exposure rates to be performed using the MicroSpec-2 was added to this package. 'this N N/A N/A addendum includes a new Attachment 6.4,6.5,6.6,6.8 and exposure rate survey map. Approvat signatures for this addendum are on Attachinent 6.5 and are not required on this page. .

ff N/A V

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_____i____

. ATTACHMENT 6.4 (PART 2)

SURVEY PACKAGE CORRECTION / CHANGE HISTORY-Package ID: #OI2 6 Package Page MB of,17_

Survey Package Correction / Change History Initials /Date D Description No. Initiator TPS ESLE FSOS This :hange is considered a minor technical change and covers the down grading of Isolation Controls for 854 specific areas of the. Reactor Building. Isolation Controls are being reduced from Ixvel 3 to Izvel 2 in #[ M M 77A accordance with the directive issued by the PRPM by Memorandum dated August 8,1996, " Modification y to 12 vel 3 Isolation Controls..." This package has been modified to reflect the implementation of Level 2 Isolation Control, N

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ATTACIBIENT 6.4 (Part 1) sc INITIAL SURVEY PACKAGE DESIGN Package ID : F0126 Package Page 8 of G Survey Medium Meam s 1 Survey unet Description Type Class:Acadon Area m survey Medium Descrantion Area e SA ER in Situ Plc F0126EZ0018ZT01 surfaces a structures suspect, affected structure 142 conection #1.genene materiet gg a 24 o e o Building: Reactor conection #2 -concrete (otenor ) 134 147 o o c l

4864 ft elevation Floor / Walls General Remarks The access plugs which conshtuted the ceiling for this survey area were previously removed and surveyed as a seperate survey area.

Exposure rate measurements will be prescribed at a later date. The current measurement protocols for data collection are undergoing review by the NRC. Approvals must be obtained prior to these measurements being collected. This package should remain open until resolution occurs or other guidance is provided by the TPS or the FSLE.

n 7her c. s AJO ccdc5 [ W 7/)5 c W ct J Eh 74 access pkk, s remeved.

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ATTACIIMENT 6.5 (PART 1) ]

General Information (GENERAL) SURVEY INSTRUCTIONS Package Page

.5 /

of 17 A

5 Package ID : F0126 Survey Area Name : Level 11 Regenerator Heater Equip. Rm.

I -

J Instructions 1

Survey Instruction Reason: Initial Final Release

[ Survey Unit

Description:

Floor / Walls l Unit Code (L1,L2 L3) : F0126 EZ001,BZT01 i

i Survev Tvoe 1 General instructions Total Scan 100% of the accessible surfa:es using "FLDSN" as the L5 code. Mark areas of Activity elevated activity and specify on the applicable forms (attachment 6.5, the download reports & survey drawings) wlMch SML(s) were used at elevated scan locations.

Collect measurements at N intersections. Also, collect additional measurements at any

, areas of elevated activity it'entified una marked during the scan. Use the next sequential location number for the addW. car l;neasurements and "FLDSN" as the L5 code.

Skgd instructions Collect a minimum of six 15-;,econd shielded local area background counts for each surface identified by a location code, ensuring that at least 3 background counts are performed for each download.

Enter a zero background subtract value when downloading survey data. Use "FLDBK" as the L5 code when performing background counts.

} Removable Field check smear samples taken at elevated areas identified and marked dunng the scan. If the field

Activity check results indicate removable activity >1000 dom /100 cm*, then post the area in accordance with procedure FSV-RP-OPS-i-101 and notify a F.O.C.

i Beta-Gamma : Collect at the same locations as the total surface activity measurements. l Also, collect additional measurements at any areas of elevated activity i

identified and marked during the scan. Use the next sequentiallocation number for th dditional measurements and "FLDSN" as the L5 code.

m-Instructions Completed h- V{g g,4 33 g These approvals are only req'd 4 for investigation, replacement. Technical Projects supervisor 1) 4- oate 3 or other surveys performed after a

the Initial Final Survey in the Fmal survey Lead Engineer A//] oate package.

Final survey operations supervisor Date i

e i

t 4

1 - Measurement types include: Total activity, removable activity, exposure rate, in situ, special samples and PIC.

SC.FRS.102.5-5 M021100 ruNME = AT65,tRt Rsli ATT65.1 ROL ^

1

, 1 k+

ATTACHMENT 6.5 (PART 2)

(SPECIFIC) SURVEY INSTRUCTION FORM <

Package Page b of M GENERAL INFORMATION i f

Survey instruction Reason : Initial Final Release Survey Package ID : F0126 Category : Walls, floors, ceilings &

Survey Unit

Description:

structures / equipment-interior Floor / Walls Classification : Suspect, affected structuro j Grid Size (m):1 X 1 Area (m'): 142 UnitCode (L1,L2,L3): F0126,EZ001, BZT01 '

l TOTAL ACTIVITY Beta scan required 4

Detector Code (L4)* : 02200 Detector Model: LMI 43-68B Count Time : 15 seconds Deesctor models43-688 4 43-1068 can be used mterchangeably When vamg the 43488. employ on L4 code of 02200. when using the 43-1068 employ an L4 code of 02201 Count Type (L5) : FLDCT Material Area (m') L6 L7 L8 Range # Mstmnts instructions i Remarks  ;

collection #1 - genenc matenal 8 BMC01 77777 148-181 34 Obtain SMLs 146-157 at location new l stickers were placed. Obtain SMLs Or 4 3.I 158-181 at evenly spaced locations on

""' G 3* 5 the upper and lower ledges. Mark all d, new SMLs on the applicab6e survey maps. ir j

_ collection #2 - concrete (interior ) 134 BMC02 ZZZZZ 1-147 147 None l

REMOVABLE ACTIVITY

Detector Code (L4)

00000  !

Count Type (L5)

LAB 03 Beta  ;

smear Material Area (m') L6 L7 L8 Range Smear Type & Qty Instructions / Remarks

, collection #1 genenc 8 BMC01 77777 148-181 Beta Gamma. 34 l 4

material See remarks specifM for l total activRy for location #

instructions, j s

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collection #2 concrete 134 BMCO2 77777 1-147 Beta Gamma 147 None (interior )

l Comments: th]d Afambu Mhen s 182, /F3 f'/ 84 k Ar.r ye. E/eMe.,s Areas fo d Dand y Ecwn/ny DAva ho% c.1-fs g 4

SC.FRS.102.5 6 M031100 jj

ATTACHMENT 6.6 COVER SHEET - DOWNLOAD REPORTS Package Page 7 of G Package ID : F0126 Inst Function Sat Download File # Location Code ' Measurement Type M2350/ Detector Serial # Technician /Date (Y/N)2 J/69 - 5 8NCO al A>ht S- /M. iTS/A"% S4 7 mJUM s+9c P

'/62-3 En? M a ' Eda sanoUsD& <1o 7 kearnes AsAWrL

<we' Al H 77 - 3 6m(o; a,h ;gi9$ / /2 G Tr9 7 3. th tN/os-s-1c  ?

H77-3 & M C.e> 2 Llw i x r9 c. ?/ r a r. 7 9 7 .T. Arts.O/ac _r-rc ,o M W-5 B M C o cD E7% /2 ft 94 /s.u PP > wT'AWMkr:7-u #

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Comments 4 wp grff n / b c / a g g g g Qi f * $ ? /Ol 9'6 $ 5 $

1 Use L2, L3 & L6 for Surfaces & Strucutures or Open Land Areas Survey Units and use L7 & L8 for Plant Systems Survey Units.

2 IF the instrument response check DID NOT pass acceptance (e g failed source respor se, effe ency, irnproper count tirne, etc ). THEN indcate thrs in this space, annotate the download report, and contact RP Supervision and a Final Survey Engineer so that data can be evaluated and the survey unit m the package can be re-surveyed and the Survey instruction Form can be annotated property by a Final Survey Engineer as necessary Reviewed b h

/l Field Operations Coordinator Date

._:r

• b M021100 , , '

SC.FRS.102.6-4 FLENAME = Are6_Ro RSL i ATTS6 ROL -~--

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SURVEY PACKAGE VALIDATION CHECKLIST '{

' Sg rv lastruction Reason: ii

" Initial Final Survey - E Other :

. Investigation Survey N Replacernent Survey o

Package ID : F0126 Package Page T of M 5 DATA REVIEWS li SURVEY DOCUMENTATION REVIEWED FOR COMPLETION: FOC Remarks Inital / Date Ganuna & Beta Scan Surveys A k A 7 8 7-J-76 Total Activity Surveys [ I

[ ) 7- 8 P d - 9.4 Exposure Rate Surveys [ 7G 7-d -% ,

Smears Surveys f._ -

t A 7 -) - 94, 3

Soil Samples  ; h1 n I l Water Samples i / k Sediment Samples I U i dI# ,,

ALL REQ'D MEASUREMENTS & SAMPLE RESULTS ACCOUNTED Ganuna & Beta Scan Surveys G l A f6 '2 9 - 94 Total Activity Surveys I I

[ ) 76 79-94 Exposure Rate Surveys f 76 7-)- 9/.

Smears Surveys T6 7-) '/g Soil Samples j f n Water Samples [ ]h

. Sediment Samples l V ,Yf#

COMMENTS A

Surveys are completed & validated b~ Date: 7'M-T

+ Field Operations Coor athr Surycys are completed and the survey package review has been completed.

g -

Date:

• Final Sufvey Operations Supervisor All survey design requirements are Complete.

M //h Date;

+ Radiologikal hgineer

+o. . A rm  :.--...1.,---. ., m, L ..--,,.,r-,,.eir,- o :nv a en .t e. mm :n % e . ,, n- m .r t i m SC.FRS.102.8-4 FitIN AME = AT68,RO RSL i ATT68 RDL M021100

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ATTACIIMENT 6.11 .L M JQ, d SURVEY AREA HISTORY FILE k

.A OVERVIEW 9 M

Package Page of 17 3:i i

l Package ID : F0126 Elevation :4864 Dr: wing # :RX,_ t 1 Survey Area: F0126

• Building (s): Reactor  !

Survey Area Name : Level 11 Regenerator Heater Equip. Rm.

Survey Area Description :

The level 11 Regenerator Heater Equipment Room is located on the south central side of level 10 in the Reactor Building. Access to the room is from the refuel floor on level 11.

Summary of Operational / Utilization llistory of Area (s) :

This area and the equipment within, were in operation prior to August 18,1989. The regen heater, compressor, containment tank, knockout drum and dryer were part of the helium purification system and were located in this room. The regmi portion of the helium purification system was used for the desorption of water and carbon dioxide from the helium system.

All major equipment, including the ventilation system and access plugs that constitute the ceiling, have2 been removed from this survey area. Remaining vents and penetrations are <550 dpm/100 cm removable and <3,000 dpm/100 cm2 fixed. 2 existing drain lines will be surveyed by thei systems group at a later date.

Decommissioning and Remediation Activities:

See operational section for decommissioning activities. Extensive remediation was performed on the floor. The walls were wiped down and/or vacuumed. All fixed and removable contamination was remediated when discovered.

Most recent radiological classification and survey results (range, averages, etc.):

On 1/30/96, a 100% beta scan and 36 smears were taken on walls above and below 2 meters.

Removable contamination was <550 dpm/100 cm2 and fixed contamination was <2,000 dpm/100 cm2, On 4/3/96, fixed contamination up to 4,300 dpm/100 cm' was discovered on the floor and remediated to <3,000 dpm/100 cm' fixed and <550 dpm/100 cm' removable. On 4/9/96100% beta scan and 10 smears were obtained on scaffolding in the survey area. Results were <3,000 dpm/100 cm2 fixed and <550 dpm/100 cm2 removable.

See Isolation Report (IR-116) for additional survey information.

References : FSV Decommissioning Project initial Site Characterization Report - Volume 2 and 4.

Informalinterviews with various PSCo & Westinghouse Team personnel regarding survey area use.

Isolation Report IR-116 ROR 96-004 l

l l

l SC.FRS.102.11-4 FILENAME s AT611.R0 RSL I ATT611 RDL M021100 i 04/15/96 on-

_ _ - - . . . . . .- . . - .. - - - - .=. - - - - -, - - . .- -

e

.i l ... 1 4

ATTACIIMENT 6.11 (CONTINUED) '

j SURVEY AREA HISTORY FILE ->

Package Page iO of 17  ;

Package ID :F0126 Elevation : 4864 Drawing # :RX_Il Survey Area: F0126 i l  ?,

3 e

CIIECKLIST  !

Has the survey area ever been inside an RCA? Yes

!' If 'Yes', explain: The entire Reactor Building was within a RCA area.

l Has the survey area ever been exposed to reactor coolant or radioactive process system liquid? No

! If 'Yes', explain:  !

i Has the survey area ever experienced any known contaminated spills or breaches of contaminated systems? Yes l If 'Yes', explain: Potential contamination from the refuel floor airborne incident (ROR 96-004) could have occurred. i

I ,

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SC.FRS.102.11-4 M021100 FILENAME

• AT611,RO RSL / AT1811 RDL 04/1I/96 15

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I 1 ATTACIIMENT 6.11 (CONTINUED) ;i 9a -!

.Ii SURVEY AREA HISTORY FILE 'I Package Page n i of ) ~) 1 Package ID :F0126 . Elevation : 4864 Drawing # :RX_ll Suney Area: F0126 ';

CONCLUSIONS ,

?

Classification for Final Survey : Affected :j kl i Basis for Classification : The following survey units are class %d as follows:

FZ001 - Floors - Suspect Affected WZ001 - Walls - Suspect Affected Operational / Utilization history of the area and recent characterization surveys indicates there was a presence of extensive quantities of contamination on the floor and walls in this area.

All penetrations in this survey area have been surveyed and resul's are <3000 dpm/100 cm2 fixed and <550 dpm/100 cm' removable contamination.

There have been extensive decommissioning and remediation activities in this survey unit.

For the above mentioned reasons the final survey has been classified as Suspect Affected.

N Does this classification require a change to the FSV Final Survey Breakdown structure? No m x Prepared by: A 9!H Radiological Engineer Dad l

SC.FRS.102.11-4 M021100 FILENAME = AT611.R0 RSL / ATT611 ROL 04/I1/96

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4 L 1 A'ITACHMENT.6,1, .j 1 y

{

FINAL SURVEY DATA INVESTIGATION FOsu,I b Q. [, . ,

. e.v._ AW '

Survey Package #: F0126 Location Code (s): F0126EZ001BZT01 j .

}'

Invesdgation #1 -*

l Descdption of Problem (s): i

a

The results of the initial final survey for survey unit F0126EZ001BZT01 display three total surface j activity measurements that exceed the guideline value of 4,000 dpm/100 cm2 SMLs 183 and 184 of j- download 474-3 reported total surface activity values of 12,000 dpm/100 cm2 and 4,055 dpm/100 cm2 respectively. SML 182 of download 468-3 reported a total surface activity value of 16,756 dpm/100 l cm2 No material background subtract was applied to these measurement as they were performed on generic material. The corresponding removable surface activity measurements for SMLs 182-184 j (60.6,137 and 46.7 dpm/100 cm2, respectively) were slijptly elevated. No other survey measurement exceeded the guideline value for either total or remosable surface activity.

N i

) The elevated activity locations were discovered on the' upper ledges of Walls 1,2 and 3. These SMLs

[.1 were additional measurements to the initially prescribed 181 total surface activity measurements and

( were identified during the 100% beta scan.

1- . i j Exposure rate measurements have not yet been performed. -; i l

). Follow-up Actiorm:

l Investigation Survey 1

Scan in the vicinity of the elev'ated measurement result (s) to define the bounds of the elevated activity.

l Mark any areas of elevated activity identified during the scan.

l i

j- Collect a fixed point measurement and smear sample at the location of the elevated measurement l 1: result (s) identified during the Initial survey. Also, collect a fixed point measurement and smear t sample at any area (s) of elevated activity identified during the Investigation scan survey. Use the

"G01 - Investigation" survey reason code, and begin numbering with SML 185 for both the total and j removable surface activity measurements.

} If no elevated activity is found at either the location of the elevated measurement result (s) identified i during the Initial survey, and no areas of elevated activity are identified the during the Investigation scan survey, then no further survey is required. If elevated activity was identified for either case, then

' remediate the elevated area (s).

i 4

Remediation Activities Direct remediation activities to ensure appropriate contamination control measures are implemented, and perform scan surveys to ensure the elevated areas are remediated. As a part of job-coverage, or after completion of remediation, ensure that a 100% scan survey is performed v ithin the vicinity of the elevated measurement result (s) to confirm remediation was successful. Also, perform scan surveys over any adjacent surfaces which may have become contaminated during the remediation process.

Mark area (s) of elevated activity, either for additional remediation, or for the following Remediation survey fixed point and smear sample measurements.

i I i SC.FRS.110.1-2 Page 1 of 3 M021100

" 84

2 1 i  ;

i A'ITACllMENT 6.1

' j,'d FINAL SURVEY DATA INVESTIGATION FORM g' ' 4 ~, f' rg!

j i

1 .

, *T m !w

' y Lj Follow-up Actions (Cont.):

meme. - s.ner -]a i Following remediation activities, perform a Remediation survey using one of the following methods, ,

[

as appropriate. 2' 1

7

. 1. For accessible surfaces where the activity is localized, grid the surrounding surface using a 3 by 3  ;

meter grid pattern. Position the grid pattern so as to include the location of the elevated i measurement result (s) identified during the Initial survey, and any additional area (s) of elevated '

l activity identified during the Remediation scan survey. (Expand the 3 by 3 meter grid pattern as

necessary.) Collect a minimum of 5 total and removable activity measurements from within each i

square meter. First collect measurements at the area (s) of elevated activity identified during the l Initial survey, then collect measurements at any areas of elevated activity identified during the 4

Remediation scan survey, then collect the balance of the 5 measurements uniformly distributed j within each square meter.

1

2. For small or irregular surfaces which are not amenableto a_the 3 by 3 meter approach, collect a j minimum of 30 total and removable activity measurements from the surfaces encompassing the j

location of the elevated measurement result (s) identified during the Initial survey, and any I

additional area (s) of elevated activity identified during the Remediation scan survey. First collect

! measurements at the location of the elevated measurement result (s) identified during the initial l survey, then collect measurements at any areas of elevated activity identified during the j Remediation scan survey, then collect the balance of the 30 measurements uniformly distributed

! throughout the included surfaces.

4 5

3. For accessible surfaces where the activity extends beyond a 3 by 3 meter area, grid the surface as j directed by a final survey package engineer. Collect a minimum of 5 total and removable activity measurements from within each square meter. First collect measurements at the area (s) of i

elevated activity identified during the initial survey, then collect measurements at any areas of i

! elevated activity identified during the Remediation scan survey, then collect the balance of the 5 l measurements uniformly distributed within each square meter.

4 Use the "R01-Remediation" survey reason code, and begin numbering with the next sequential SML number after the last Investigation measurement.

Annotate a survey map to identify the location of the Investigation measurements (scan and fixed point). If remediation is performed, then annotate a survey map to identify the location of the i Remediation measurements (scan and fixed point).

Denote on Attachment 6.4 (Part 1) form (s) and Attachment 6.5 (Part 2) form (s) the area (m2), SML range (L8), and the number of Investigation and Remediation survey measurements, as applicable.

Submit the sub-package to a Survey Package Engineer.

Th: Survey Package Engineer will update the Package Database, including the type and number of measurement (s). The CAD Operator will update the survey map (s), as necessary.

After the Package Database and survey maps are updated, then return the survey package and sub-package to the Data Evalgation Group.

4 Prepared By/Date: k k SIO. h > (Data Eval. Engineer)

Investigation Pe fomwd By/Dah: dM UCSM frediniaani

' SC.FRS. Il0.1-2 Page 2 of 3 M021100 85

A'ITACIIMENT 6.1 mj FINAL SURVEY DATA INVESTIGATION FORM

'. .f

y

-b J

.a Survey Package #:

4 F0126 Location Code (s): F0126EZ001BZT01 Investigation # 1 Disposition: .

Instructions were written and an investigation survey was performed using survey reason G01 and total and removable surface activity measurements were collected at the same locations as the I initial final survey elevated measurements beginning sequential numbering with SML# 185 and i ending with 187 respectively. The areas of elevated activity iden'ified during the initial scan survey SML(s) 182,183, and 184 were confirmed and remediation was prescribed.

The total surface activity results of the investigation survey for survey unit F0126EZ001BZG01 indicated the total net activity of approximately 4K dpm/100cm2 for SML 185, 2

15.5K dpm/100cm2 for SML 186, and 3.5K dpm/100cm for SML 187. Removable activity was 2

j, 92,194 and 349 dpm/100 cm , respectively.

L, .

l The area (s) was subsequently remediated and a remediation survey was performed using survey

] reason R01. A total of 135 total and removable surface activity measurements were collected,5 within each square meter, within three 3 x 3 meter gridded aregs. he areas of elevated activity identified during the initial scan survey reason T01 SML(s) 18f*-l measurements reason 001 SML(s) ang:h edia on,invi ' ation survey survey reason code ROI using SML(s) 188-190 re[sp,ec,tive185-g . The results of the were repeated remediation after r survey confirmed the remediation activities were successful.

, The elevated measurement result (s) from the initial T01 and investigation G01 surveys were not included for reporting purposes. The 135 remediation survey results were added to the 184 initial survey measurement results, excluding the tiree elevated measurement results which were remediated, and not used for reporting r.orpt.ses.

Changes were made to the master database for total and removable surface a.tivity to delete the elevated T01 and G01 measurements from the data set. The affecte6 <. rvey measurement locations were as follows :

For location code F0126EZ001BZ :

Reason Code (s) SML #(s) Sample #(s) Download #(s)

T01 182 10 -568-3 467-3 'I T01 183, 184 16-17 474-3 G01 185-187 10-12 576-3 The results of total and removable surface activity measurements collected within this Survey Area meet the criteria for release for unrestricted use and no further action is required.

Reviewed By/Date: O 6//7k6 -

toata Eval. Enginer.-)

Auth, for Partial Reclass. By/Date: M RSLE)

SC.FRS.110.1-2 Page 3 of 3 M021100

'" 86

f$ S-to-Mio -

ATTACHMENT 6.4 (Part 1)

[ of Package ID : F0126 Package Page Susvey Ik.dium Number of RAosouvements' Survey Unit Description Type Classification Survey Reed 6um Description SA ER In Situ Plc F0126EZD018ZR01 surfaces a structures suspeo, affected structure conection si . generic material A7 e; e o Building: Reactor 4864 ft elevation surtam Am % Ama r. > conecuan sz - concmte pneenor 3 fog a o o Total surface area y Level 11 Regenerator Heater Equip. Rm. pu,or ares y Floors / Walls / Ceiling / Equipment b6y gg was area < 2 m pa -

General Remarks 1 Design Considerations Wan area > 2 m #

Cethng area yg-e.

1 awe. e w.

- - . _ h/liiakr*cl Ib ._ _

M s 6y- --

Wp)l -0 3 &Htb ~~~

s cr. va a A; rz,HL I

~

_+

3 Q () <a. j t sA = swface Actuny ; ga . expo ,e _

Prepared by : Date: 3-/d #d '~"

SC.FRS.102.44 ( N.)

FEEW = A164_tR1 RSL I A 64,1 RDL ,

_ . __ m._ .

z_

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ATTACHMENT 6.4 (Part 1)

Package ID : F0126 INITIAL SURWY PACKAGE DESIGN .

I Package Page of Survey RAedium Number of RAsesurementsi Survey Unit Description Type Classification Survey RSMAum Description SA ER in Situ Plc F0126EZ0018ZG01 surfaces a structures suspect, affeded structure collectior '

- genenc material 0 surface Ama W Amam 3 0 0 Building: Reactor 4864 ft elevation Totai surface areajyg conectia. , oncrete pneersor j gr o o o Invel 11 Regenerator Heater Equip. Rm. A Floorarea 4 Floors / Walls / Ceiling / Equipment General Remarks 1 Design Considerations was area < 2 m pa was area > 2 m g O QY p224(

Ceiling area gg M%

_.~

i i

> n I. ' ^

~

3 1 1 SA = Surface Adivdy ; ER = Exposure Rate.

Prepared by : ID, b if4 h

, s Date: [~ /645 --, 9 i SC.F RS.102.4-6 V V '

RA021100 -

FEEP4AME = AT64,1R1 RSL i ATT64,1 RDL

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4 l l .(

,. j 0] ATTACHMENT 6.5 (PART 1)  ;' E

.it i s, { t' *<

3 11 (GENERAL) SURVEY INSTRUCTIONS ~

'Generalinformation Package Page 3 of , Y Package ID : F0126 Survey Area Name :

4 Level 11 Regenerator Heater Equip. Rnt.

Instructions Survey instruction Reason: Investigation Survey Unit Desenption: Level 11 Regenere'or Heater Equip. Unit Code (L1,L2,L3) : F0126, EZ001, BZG01 Rm.

Floors / Walls / Ceiling / Equipment .

Survev Tyne 1 General insitRctions.

Total Activity Scan in the vicinity of each elevated measurement result to define the bounds of the elevated activity using "FLDSN" as the L5 code. Mark areas of elevated activity and specify on the applicable forms (attachment 6.5, ?.he download reports & survey drawings).

Collect a measurement at elevated areas identified duri.1g the ir' .I survey (refer to attachment 6.1, Final Survey Investigation Form). Then colleci editional measurements at EJj areas of elevated activity identified and marked during the remediation scan. Use the next sequential location number for the measurement (s) and "FLDSN" as the L5 code.

Bkgd Instructions Collect a minimum of six 15-second shielded local area background counts for each surface identified by a location code, ensuring that at least 3 background counts are performed for each download.

Enter a zero backgroun'd subtract value when downloading survey data. Use "FLDBK" as the L5 code when performing background counts.

Removable Activity Field check smear samples taken at elevated areas identified and marked during the can. If the field check results indicate removable activity >1000 dpm/100 cm2, then post tht; area in accordance with procedure FSV-RP-OPS-I-101 and notify a F.O.C.

Beta-Gamma : Collect at the same locations as the total surface activity measurements.

Instructions Completed Radiologral Engineer b, Date &/0 $

for es igat o replac men Technical Protects supervisor b '

Date d!'3h6 or other surveys performed after the Initial Final Survey in the package, Final survey Lead Engineer

/

' y g

Cate gpg j j

{ <-

Final survey operat>ons supervisor Date 0 //13f(-

I

\}

1. Measurement types include: Total activity, removt.ble activity, exposure rata, in situ, special samples and PIC.

SC.FRS.102.5-5 M02.1100 FILENAhef e ATS6f R1 RSL i ATTSS,,1 RDL 0C Qt

I i,i htf. 4 m.

,i .

ATTACHMENT 6.5 (PART 2)

6, Q:

(SPECIFIC) SURVEY INSTRUCTION FORM r Package Page q of GENERAL INFORMATION  ;

J

Survey instruction Reason

Investigation ' '

) Survey Package ID : F0126 Category : Walls, floors, ceilings &

Survey Unit

Description:

structures /equiprnent -interior i

Level 11 Regenerator Heater Equip. Rm. Classification : Suspect, affected structure Floors / Walls / Ceiling / Equipment Grid Size (m):N/A Area (m'): M UnitCode (L1,L2,L3): F0126 EZ001, BZG01 SURVEY INSTRUCTIONS TOTAL ACTIVITY Beta scan required Detector Code (L4)* : 02200 Detector Model: LMt 43-68B Count Time : 15 seconds i j o.=ciar maa.e 434ae a 431ose can t= us a nen:nanonacey when us no r. 434ee empioy en La coa. or c2200. -n.n usino r= 43-tosa. .mpey en (4 aoo. e o22oi

{

Count Type (L5): FLDCT

I. Material Area (m') L6 L7 L8 Range # Mstmnts Instructions / Remarks h ,- collection #1. genenc matenal BMC01 77777 185 None

, A N 187 $ M&T 4&w l coilection sz . concrete (intenor BMG02 ///// , kune "

) l

)$ .8" G"  %

l -

r.::

REMOVABLE ACTIVITY Detector Code (L4): 00000 Material Area (m') L6 L7 L8 Ranj[ Smear Type & Qty Instructions / Remarks

~

collection #1. genenc BMC01 ZZZZZ 185 Beta Gamma.

material None

/87 3 6tMJ=fC s 93 % TYf collection #2 concrete BMG02 ///// Beta Gamma.

(intenor ) None l

& W comments: gg g *$ 7 4, ,a g S _ ,, m ont;,,, g,g,p _g,ga,,, 3 5,a=jg3

.SasL*1 % &, .%L 195 4'.5% L"/f7 & .CmL 18 4.

SC.FRS.102.5-6 M621100 m- . mueo m , m.v . 'O

1 ATTACHMENT 6.5 (PART 1) '

l (GENERAL) SURVEY INSTRUCTIONS General Information Package Page 5 o ,J% .

Package ID : F0126 Survey Area Name : Level 11 Regenerator Heater Equip. Rm. 6 Instructions

,j Survey instruction Reason: Rernedsation Survey Unit

Description:

Level 11 Regenerator Heater Equip. Unit Code (L1,L2,L3) : F0126, EZ001, BZR01 Rm.

Floors / Walls / Ceiling / Equipment l

Survev Tyne 1 General instructions Total Activity if a 100% scan of accessible surfaces was not performed after remediation activities, then i perform a 100% scan of the accessible surfaces, as determined by the investigation follow-up actions, using "FLDSN" as the L5 code. Mark areas of elevated activity and specify on the applicable forms (attachment 6.5, the download reports & survey drawings) which SML(s) were used at elevated scan locations.

Collect a measurement at elevated areas identified during the initial final survey (refer to  ;

attachment 6.1, Final Survey Investigation Form). Collect measurements at SML i locations denoted on the survey map (s) as determined by the investigation follow-up actions. Also, collect additional measuramerts at any areas of elevated activity identified and marked during the remediaten seen. Use the next available sequentiallocation number for the remediation measurements and "FLDCl" as the L5 code.

skgd instructions Collect a minimum of six 15-second shielded local area background counts for each ,

surface identified by a location code, ensuring that at least 3 background counts are  !

performed for each download.

Removable Activity Field check smear samples taken at elevated areas identified and marked during the ,

scan. If the field check results indicate removable activity >1000 dpm/100 cm2, then post '

the area in accordance with procedure FSV-RP-OPS-I-101 and notify a F.O.C.

Beta-Gamma : Collect at the same locations as the total surface activity measurements.

Instructions Completed Radologcal Engineer A Date 8'"/0 ' 1b These approvals are only req'd for investigation, replacement, Techncal Protects supervisor s 4L t by Date M gN or other surveys performed after the Initial Final Survey in the package.

p,nal survey Lead Engineer (/

y

, oate

/

Final survey Operations supervisor Date J

/

1 - Measurement types include: Total activity, termvable activity, exposure rate, in situ, special samples and PIC.

SC.FRS.102.5-5 M021100 FLINAME e AT66,tR1 REL # Aft 65,1 RDL g{

l I' . ATTACHMENT 6.5 (PART 2) ,!

(SPECIFIC) SURVEY INSTRUCTION FORM Package Page If[4 S"['l,_i iy GENERAL INFORMATION Survey instruction Reason :Remediation qfe/ 'N '

f-12 tl, Survey Package ID : F0126 Category : Walls, floors, ceilings &

Survey Unit

Description:

structures /equiprnent -interior Level 11 Regenerator Heater Equip. Rm. Classification : Suspect, affected structure  ;

Floors / Walls / Ceiling / Equipment Grid Size (m) :N/A Area (m') : A I UnitCode (L1,L2,L3): F0126 EZ001, BZR01 SURVEY INSTRUCTIONS TOTAL ACTIVITY Beta scan required Detector Code (L4)* : 02200 Detector Model: LMI 43-68B Count Time : 15 seconds Detector models 43488 & 431068 con be used riterchengeably When us ng the 43488, employ on c Le ode at 02200, when usvig the 43-1068. employ on L4 caos of 022o1 Count Type (L5): FLDCT Material Area (m') L6 L7 L8 Range # Msrmnts Instructions / Remarks collection #1 - genene matenal BMC01 /////

gg g None collection sz - concrete entenor BMCO2 /////

gg g None REMOVABLE ACTIVITY Detector Code (L4):00000 Matertai Arealm') L6 L7 L8 Range Smear Type & Qty Instructions / Remarks codection #1 - generic BMC01 77777 matenal Dsta carnma: None 18s %

Y in 3%

al'1 37 collection #2 - concrete BMG02 ///// Beta Gamma-(intenor ) None glf g L6 m l08 i

Comments: 14,5 7 f ja M , S.

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SC.FRS.102.5-6 M021100 FILENAME o #.I65,2RQ RSL i 3TT65.2 RDL gq6

ATTACHMENT 6.6 iNf COVER SIIEET- DOWNLOAD REPORTS pacgog,pog, / g ,, fy Package ID : pp fg i

inst Function Sat Download File # Location Code Measurement Type ' M2350/ Detector Serial # Technician /Date (Y/N) 2 57c, -3 Ezocl-ezGo/-Ek Ah s

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Use L2, L3 & L6 for Surfaces & Strucutures or Open Land Areas Survey Unets and use L7 4. L8 for Plant Systems Survey Unds 2 IF the instrument response check 010 tJOT pass acceptance (e g failed source response, etficiency, improper rount time, etc ) THEN indicate this in this space, annotate the download report, and contact RP Supervision and a Final Survey Engineer so that data can be evaluated and tw survey unit i.1 the package can be re-surveyed and the Survey Instruction Form can be annotated property t'y a Final, Survey Ersgeneer as necess_ary,

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SURVEY PACKAGE VALIDATION CHECKLIST '

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Survey Instruction Reason: 1 ii n Initial FinalSurvey p[ Other: ai iTi/O g Investigation Survey O Replacement survey

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<l Package ID : F0126

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i DATA REVIEWS -

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SURVEY DOCUMENTATION r

REVIEWED FOR COMPLETION: FOC Remarks inital / Date Gamma & Beta Scan Surveys [jjg.254 Total Activity Surveys gg,33 g I

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f Exposure Rate Surveys gjg Smears Surveys ' '

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Soil Samples gfg i Water Samples '

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gja ALL REQ'D MEASUREMENTS & SAMPLE RESIII,TS ACCOUNTFD camma & Beta Scan Surveys /h//; 98'ii.

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Surveys are completed and the survey package review has been completed.

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• Required for mvestigauon. replacenwnt or odier surveys performed after the irritsal final sursey in the survey package.

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