ML080590247

EP 1.12, Survey Unit Release Record

ML080590247
Person / Time
Site:	Plum Brook
Issue date:	02/25/2008
From:	Babcock & Wilcox
To:	NRC/RGN-III
References
Download: ML080590247 (39)

Text

Description Suwey Unit Release Record Design # Original Suwey Unit #(s) EP 1.12 Page 1 of 4 1.12 1) Embedded Pipe (EP) Survey Unit 1.12 meets the definition of embedded pipe for Plum Brook Reactor Facility (PBRF). 2) EP 1.12 is a Class 1, Group 1 survey unit as per the PBRF Final Status Survey Plan (FSSP) and Technical Basis Document (TBD)-06-004.

3) Surveys in EP 1.12 were performed using a scintillation detector optimized to measure beta energies 285 keV (IS0 7503-1 Table3, Tc99). This energy is lower than the beta energy for C060 (96 keV, IS0 7503-1 Table 3), assuring the nuclide of concern for DCGL is assessed during data acquisition.

4) Survey Instructions for this survey unit are incorporated into and performed in accordance with (IAW) the Babcock Services Incorporated (BSI)/LVS-003, Work Execution Package (WEP)05-006. Survey instructions described in this document constitute "Special Methods" and the survey design used in the acquisition of survey measurements. 5) Instrument efficiency determinations are developed in accordance with the BSIILVS-003, WEP 05-006, these determinations are appropriate for the types of radiation involved and the media being surveyed.

Revision # Approval Signatures FSSICharacterization Engineer FSSICharacterization Manager Date: F& 14 2b Jdh 8 CS-0911 FSS Design # EP 1.12 Revision # Original Page 2 of 4 Survey Unit: 1.12 1.0 History/Description 1.1 The subject pipe is the 24" hot leg for the PCW system. The function of this piping was to convey heated water away from the reactor core.

1.2 EP 1.12 consists of 24" diameter piping that is approximately 146 feet in length. 2.0 Survey Design Information 2.1 EP 1.12 was surveyed IAW Procedure #BSI/LVS-003.

2.2 87 feet of the 24" pipe was accessible for survey. The inaccessible piping includes elbows (8), weld bead tran sitions, and the thre e feet of piping between the 0' elevation and the -3

' elevation in the PPH Room 4. The elbows and their approaches are inaccessible to the pipecrawler. The 3' in PPH Room 4 is released to the structural DCGL and will not be grouted. The survey for this piping will be accomplished as part of the structural release survey in PPH Room 4.

2.3 100% of the accessible piping was scanned.

2.4 16 survey locations were selected by a random number generator for static measurements. The locations were assigned as eight from the vessel access point and eight from the PPH Room 4 access point. Five of these locations were in the inaccessible elbows, one was inaccessible due to weld bead transitions. At each accessible location four static measurements were acquired IAW BS I/LVS-003 for a total of 40 static measurements (Att. 1A).

2.5 The surface area for the 24" piping is 5837 cm 2 for each foot of piping, corresponding to a piping surface area of 852202 cm 2 (85 m 2) for the 146 feet of embedded pipe 24" piping.

3.0 Survey

Unit Measurement Locations/Data 3.1 Pipe interior radiological survey forms are provided in Attachment 2 of this release record.

4.0 Survey

Unit Investigations/Results 4.1 None FSS Design # EP 1.12 Revision # Original Page 3 of 4 Survey Unit: 1.12 5.0 Data Assessment Results 5.1 Data assessment results are provided in the EP/Buried Pipe (BP) Survey Report provided in Attachment 1A & 1B.

5.2 This survey unit was assessed for compliance with the release criterion attributing all activity derived dose as a 100% Co60 nuclide distribution. This is the most conservative DCGL for the facility.

5.3 Scan measurements require a 90 second scan time to survey each section of accessible 24"piping at

< 1inch/second. The documented gross cpm measurement for each scan is the highest, instantaneous, cpm count rate

observed during the 90 second scan. The derived activity from these scan measurements is the most conserva tive quantity for that section of assessed piping. This conservatism is replicated when determining compliance with the DCGL releas e criterion. (BSI/LVS 003, WEP 05-000-6). 5.4 When implementing the Unity Rule, provided in Section 3.6.3 of the FSSP, the survey unit that is constituted by EP 1.12 passes FSS.

5.5 Background

was not subtracted from the survey measurements and the Elevated Measurement Comparison (EMC) was not employed for this

survey unit.

5.6 Based

upon the results of the final survey measurements including the scan survey of the upper piping boundary in the Primary Pump House, it is reasonable to conclude that the fina l survey of the accessible portions of this pipe system is appropriate to demonstrate the radi ological condition of the entire pipe. Survey Unit EP 1.12 demonstrates compliance with the inaccessible piping acceptance criteria of Section 7.5 of the PBRF FSSP.

5.7 The physical configuration of this surv ey unit consists of a 24" pipe in a conformal steel support box whic h is surrounded by a concrete sarcophagus of at least two feet in th ickness for the entire length of the piping bounded by the survey unit. There is no access into the survey unit from any adjacent survey units, and the steel support box is inaccessible to personnel.

5.8 It is presented that this piping consti tutes a single, contiguous and distinct survey unit unto itself. This survey units' dose contribution is <2 mr/yr and is significantly within a release criterion of 25mr/yr. The dose contribution of this survey unit does not impact adjacent structural survey units.

FSS Design # EP 1.12 Revision # Original Page 4 of 4 Survey Unit: 1.12

5.9 Statistical

Summary Table Statistical Parameter 24" Pipe Total Number of Static Survey Measurements 40 Number of Measurements >MDC 40 Number of Measurements Above 50% of DCGL 38 Number of Measurements Above DCGL 0 Mean 0.683 Median 0.697 Standard Deviation 0.094 Maximum 0.969 Minimum 0.462 6.0 Documentation of evaluations pertaining to compliance with the unrestricted use limit of 25 mrem/yr and dose contributions from Embedded Pipe and radionuclides contributing 10% in aggregat e of the total dose for both structural scenarios and soils.

6.1 A review of the survey results has shown that the dose contribution for EP 1.12 to be less than 2 mrem/yr. The dose contribution is estimated to be 1.366 mrem/yr based on the average of the actual gross counts measured.

7.0 Attachments

Attachment 1A - BSI EP/BP Survey Report Static & Random Number Generated Static Locations Attachment 1B - BSI EP/BP Survey Report Scan Attachment 2 - Pipe Interior Radiological Survey Form Attachment 3 - DQA Worksheet Attachment 4 - EP 1.12 SURR & Spreadsheet Disc SECTION 7 ATTACHMENT 1A 5 PAGES

\/ .--- Flbka& rCr. BSl EPlBP SURVEY REPORT (STATIC) Pipe ID Survey Date Survey Time Pipe Size DCGL (dpml100cm2) 50% DCGL (dpm/100cm2)

Routine Survey QA Survey 1.12 see survey sheets see survey sheets 24" 481 600 240800 X Survey Measurement Results Survey Location 2350-1 # Detector-Sled

1. Detector Efficiency Pipe Area Incorporated by Detector Efficiency (in cm2) Field BKG (cpm) Field MDCR (cpm) Nominal MDC (dpm/IOOcm2)

Total Number of Survey Measurements Number of Measurements

>MDC Number of Measurements Above 50% DCGL Number of Measurements Above DCGL Mean Median Standard Deviation Maximum Minimum PPH RM4 1 Vessel 203488 188383-LVS CRLR24 0.0626 100 180 49 787 40 40 38 0 0.683 0.697 0.094 0.969 0.462 Survey Technician(s)

WOOD Survey Unit Classification TBD 06-004 Piping Group SR-13 Radionuclide Distribution Sample Area FactorIEMC Used PassIFail FSS MREMNR Contribution 1 1 EP 3-9 No Pass <2 COMMENTS:

ACTIVITY VALUES NOT BACKGROUND CORRECTED.

RP Engineer I Date /Z-IB-~F / w EP 1.12 24" Pipe TBD 06-004 Group 1Measurement ID #gcpmnet cpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity222106621066336,518 336,518 0.699232222722227355,064 355,064 0.737242203922039352,061 352,061 0.731251916119161306,086 306,086 0.636341906619066304,569 304,569 0.632351793217932286,454 286,454 0.595361974119741315,351 315,351 0.655371811218112289,329 289,329 0.601122168221682346,358 346,358 0.719132341423414374,026 374,026 0.777142097120971335,000 335,000 0.696151989919899317,875 317,875 0.660462069320693330,559 330,559 0.686472171421714346,869 346,869 0.720482265522655361,901 361,901 0.751492139721397341,805 341,805 0.710552368023680378,275 378,275 0.785562200122001351,454 351,454 0.730572268322683362,348 362,348 0.752582174621746347,380 347,380 0.72171427014270227,955 227,955 0.47381886318863301,326 301,326 0.62692260122601361,038 361,038 0.750101903619036304,089 304,089 0.631291800718007287,652 287,652 0.597302226522265355,671 355,671 0.739312232022320356,550 356,550 0.740321923019230307,188 307,188 0.638 1 OF 2 EP 1.12 24" Pipe TBD 06-004 Group 1Measurement ID #gcpmnet cpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity31976319763315,703 315,703 0.65642393823938382,396 382,396 0.79452921029210466,613 466,613 0.96962154221542344,121 344,121 0.715231569815698250,767 250,767 0.521241391613916222,300 222,300 0.462252002820028319,936 319,936 0.664261547415474247,188 247,188 0.513302316623166370,064 370,064 0.768312019620196322,620 322,620 0.670322226122261355,607 355,607 0.738331979919799316,278 316,278 0.657MEAN0.683MEDIAN0.697STD DEV0.094MAX0.969MIN0.462 2 OF 2 RANDOM GENERATED STATIC MEASUREMENT LOCATIONS VESSEL 1.12 SURVEY LOCATION COMMENTS 7 19 34 41 INACCESSIBLE 45 53 61 70 RANDOM GENERATED STATIC MEASUREMENT LOCATIONS PPH ROOM 4 1.12 SURVEY LOCATION COMMENTS 5 INACCESSIBLE 17 21 32 INACCESSIBLE 33 INACCESSIBLE 41 56 INACCESSIBLE 58 INACCESSIBLE SECTION 7 ATTACHMENT 1B 6 PAGES BSl EPIBP SURVEY REPORT (SCAN) CTlVlTY VALUES NOT BACKGROUND CORRECTED. RP Engineer I Date 1 OF?

EP 1.12 24" Pipe TBD 06-004 Group 1Measurement ID #gcpmnet cpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity12220022200373,109 373,109 0.77522010020100337,815 337,815 0.70132030020300341,176 341,176 0.70842160021600363,025 363,025 0.75451850018500310,924 310,924 0.64662440024400410,084 410,084 0.85272610026100438,655 438,655 0.91182140021400359,664 359,664 0.74792260022600379,832 379,832 0.789101970019700331,092 331,092 0.687112020020200339,496 339,496 0.705121910019100321,008 321,008 0.667131990019900334,454 334,454 0.694142360023600396,639 396,639 0.824151730017300290,756 290,756 0.604161810018100304,202 304,202 0.632171820018200305,882 305,882 0.635181990019900334,454 334,454 0.694192110021100354,622 354,622 0.736202070020700347,899 347,899 0.722212330023300391,597 391,597 0.813262070020700347,899 347,899 0.722271930019300324,370 324,370 0.674281890018900317,647 317,647 0.660291890018900317,647 317,647 0.660301810018100304,202 304,202 0.632311600016000268,908 268,908 0.558321730017300290,756 290,756 0.604331770017700297,479 297,479 0.618381810018100304,202 304,202 0.632391990019900334,454 334,454 0.694402210022100371,429 371,429 0.771412100021000352,941 352,941 0.733422070020700347,899 347,899 0.722432310023100388,235 388,235 0.806441930019300324,370 324,370 0.674451890018900317,647 317,647 0.660461850018500310,924 310,924 0.646471990019900334,454 334,454 0.694482010020100337,815 337,815 0.701492450024500411,765 411,765 0.855 1 OF 5 EP 1.12 24" Pipe TBD 06-004 Group 1Measurement ID #gcpmnet cpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity502330023300391,597 391,597 0.813512170021700364,706 364,706 0.75711720017200289,076 289,076 0.60021810018100304,202 304,202 0.63231630016300273,950 273,950 0.56941600016000268,908 268,908 0.55851730017300290,756 290,756 0.60461590015900267,227 267,227 0.55571610016100270,588 270,588 0.56281660016600278,992 278,992 0.57991730017300290,756 290,756 0.604101520015200255,462 255,462 0.530111730017300290,756 290,756 0.604161990019900334,454 334,454 0.694172100021000352,941 352,941 0.733181830018300307,563 307,563 0.639191870018700314,286 314,286 0.653201910019100321,008 321,008 0.667211770017700297,479 297,479 0.618221770017700297,479 297,479 0.618231820018200305,882 305,882 0.635241690016900284,034 284,034 0.590252100021000352,941 352,941 0.733262030020300341,176 341,176 0.708271940019400326,050 326,050 0.677281970019700331,092 331,092 0.687291480014800248,739 248,739 0.516301520015200255,462 255,462 0.530311540015400258,824 258,824 0.537321390013900233,613 233,613 0.485331530015300257,143 257,143 0.534341510015100253,782 253,782 0.527351470014700247,059 247,059 0.513361260012600211,765 211,765 0.440371110011100186,555 186,555 0.387381550015500260,504 260,504 0.541391770017700297,479 297,479 0.618401770017700297,479 297,479 0.618411790017900300,840 300,840 0.625421880018800315,966 315,966 0.656431830018300307,563 307,563 0.639441850018500310,924 310,924 0.646451860018600312,605 312,605 0.649502200022000369,748 369,748 0.768 2 OF 5 EP 1.12 24" Pipe TBD 06-004 Group 1Measurement ID #gcpmnet cpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity512220022200373,109 373,109 0.775522410024100405,042 405,042 0.841532390023900401,681 401,681 0.834542170021700364,706 364,706 0.75711620016200272,269 272,269 0.56521510015100253,782 253,782 0.52731620016200272,269 272,269 0.56541580015800265,546 265,546 0.55151600016000268,908 268,908 0.55861520015200255,462 255,462 0.530111780017800299,160 299,160 0.621121660016600278,992 278,992 0.579131670016700280,672 280,672 0.583141690016900284,034 284,034 0.590151560015600262,185 262,185 0.544161550015500260,504 260,504 0.541171770017700297,479 297,479 0.618181800018000302,521 302,521 0.628191740017400292,437 292,437 0.607201610016100270,588 270,588 0.562211940019400326,050 326,050 0.677221920019200322,689 322,689 0.670231700017000285,714 285,714 0.593241750017500294,118 294,118 0.611251590015900267,227 267,227 0.555261920019200322,689 322,689 0.670271910019100321,008 321,008 0.667282110021100354,622 354,622 0.736331890018900317,647 317,647 0.660341990019900334,454 334,454 0.694351990019900334,454 334,454 0.694362010020100337,815 337,815 0.701371910019100321,008 321,008 0.667382000020000336,134 336,134 0.698392000020000336,134 336,134 0.698401810018100304,202 304,202 0.632412010020100337,815 337,815 0.701421980019800332,773 332,773 0.691432020020200339,496 339,496 0.705442110021100354,622 354,622 0.736452200022000369,748 369,748 0.768462030020300341,176 341,176 0.70812080020800349,580 349,580 0.726 3 OF 5 EP 1.12 24" Pipe TBD 06-004 Group 1Measurement ID #gcpmnet cpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity22010020100337,815 337,815 0.701101800018000302,521 302,521 0.628111620016200272,269 272,269 0.565121590015900267,227 267,227 0.555131570015700263,866 263,866 0.548141570015700263,866 263,866 0.548151610016100270,588 270,588 0.562161390013900233,613 233,613 0.485171480014800248,739 248,739 0.516181510015100253,782 253,782 0.527191470014700247,059 247,059 0.513201480014800248,739 248,739 0.516211550015500260,504 260,504 0.541221880018800315,966 315,966 0.656271600016000268,908 268,908 0.558281710017100287,395 287,395 0.59711420014200238,655 238,655 0.49621510015100253,782 253,782 0.52731390013900233,613 233,613 0.48541370013700230,252 230,252 0.47851510015100253,782 253,782 0.52761520015200255,462 255,462 0.53071440014400242,017 242,017 0.50381470014700247,059 247,059 0.51391420014200238,655 238,655 0.496101540015400258,824 258,824 0.537111520015200255,462 255,462 0.530121490014900250,420 250,420 0.520131630016300273,950 273,950 0.569141670016700280,672 280,672 0.583151550015500260,504 260,504 0.541161440014400242,017 242,017 0.503171330013300223,529 223,529 0.464181570015700263,866 263,866 0.548191580015800265,546 265,546 0.551201490014900250,420 250,420 0.520211580015800265,546 265,546 0.551221660016600278,992 278,992 0.579231640016400275,630 275,630 0.572241610016100270,588 270,588 0.562251530015300257,143 257,143 0.534261490014900250,420 250,420 0.520 4 OF 5 EP 1.12 24" Pipe TBD 06-004 Group 1Measurement ID #gcpmnet cpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity271700017000285,714 285,714 0.593282200022000369,748 369,748 0.768292220022200373,109 373,109 0.775342100021000352,941 352,941 0.733352130021300357,983 357,983 0.743362210022100371,429 371,429 0.771371910019100321,008 321,008 0.667MEAN0.631MEDIAN0.628STD DEV0.096MAX0.911MIN0.387 5 OF 5 SECTION 7 ATTACHMENT 2 18 PAGES BSILVSPipeCrawler-003 Original Pipe Interior Radiological Survey Form Date: ? Time: .//'go C r Pipe W. Pi~,"~~~;er: .zL/ Access Point Area:

Building:

~9~ System: Type of Survey Investigation Characterization Final Survey 7c Other 7' Gross )C Co60 Cs137 Detector ID# / Sled ID# \ bs-3&3 1 LI/ 3 PC_/~L~L~ Detector Cal Date:

4-6-Q CP Detector Cal Due Date: 4-5-07 Instrument:.

2350 -1 Instnunent ID #: WB~& - Instrument Cal Date: 4-5 -0 b Instrument Cal Due Date: q-6-07 From the Daily Pipe Survey Detector Control Form for the Selected Detector Background Value ( @O cpm MDCR,,,, 49 cpm Efficiency Factor for Pipe Diameter f? D6- (fiom detector effic~ency determination)

MDCstarx 787 d~m/ /OD cm2 Is the MDC,,,, acceptable?

No (~f no, a+ust sample count hme and recalculate MDCIl,d Comments: Technician Signature Pipe Interior Radiological Survey Package Page 1 of 7 Attachment 3, Page 1

,. BSWSPipeCrawler-003 Original Pipe Interior Radiological Survey Form (Continuation Form) Date: 3-7-07 RpeIDX: >;I: Pig;:? I' Access Point Area: w/-/ efY7 Building:

C3/ System: f' J Package Page 5 of 2 REFERENCE COP Attachment 3, Page 2 w Pipe Interior Radiological Survey Form (Continuation Form) - BSYLVSPipeCrawler-003 Original Date: 3 07 Pipe Diameter: " Building:

a' system: PCu/ REFERENCE COPY Package Page of3 Attachment 3, Page 2

- BSULVSPipeCrawler-003 Original Pipe Interior Radiological Survey Form Date: Pipe ID#: Building:

3 07 Time: 1.1~ Pipe Diameter:

Access Point Area:

Elevation:

System: Type of Survey Investigation Characterization - Final Survey 14 Other

• Gross X C06O - Cs137 Detector ID# / Sled ID# /M3 &3 Detector Cal Date: 4-5-0 k Detector Cal Due Date 5-2)7 Instrument.

--I Instrument ID #: 2o,?rJ3% Instrument Cal Date.

4-5-0b Instrument Cal Due Date: q 0 7 From the Daily Plpe Survey Detector Control Form for the Selected Detector Background Value

/ cpm MDCKmc 44 CPm Efficiency Factor for Pipe Diameter D. z.@ (from detector efficiency determination)

MDCstzttc 7 87 Is the MDC,,,, acceptable?

z:djust sample (me and rYalcYlate MDCR,& - Comments:

F=. Technician Signature

/ - Pipe Interior Radiological Survey REFERENCE COPY Package Page 1 of 3 Attachment.

3, Page 1 BSULVSPipeCrawler-003 - Original Pipe Interior Radiological Survey Form (Continuation Form) Date: 3-27-07 Pipe Diameter:

24 " Access Point Area:

Building:

-25 ' System: Package Page

& of EFERENCE COP Attachment 3, Page 2

%I- Pipe Interior Radiological Survey Form (Continuation Form) .- BSYLVSPipeCrawler-003 Original Date: ,?-2-7-07 Pipe ID#: 1.1 L Pipe Diameter:

' Access Point Area: Building:

Elevation:

'a' System: REFERENCE COP Package Page 3 of 3 Attachment 3, Page 2

BSULVSPipeCrawler-003 Original Pipe Interior Radiological Survey Form Date: 3 - 2. k - 07 Time: /Jw / I Pipe Diameter:

24

• Access Point Area:

Building: -t3' System: Type of survey Investigation Characterization Final Survey 'I( Other K Gross )C Co60 - 0137 Detector ID# / Sled ID# 188 3 83 1 LVW'WZL~ Detector Cal Date: 9 0 6 Detector Cal Due Date: q-3-07 Instrument:.

2360- I Instrument ID ii: 203438 Instrument Cal Date: 4-3-0 b Instrument Cal Due Date: 4-5 -07 From the Daily Plpe Survey Detector Control Form for the Selected Detector Background Value 1 80 Cpm MDCRsm,, 49 CPm Efficiency Factor for Pipe Dlameter O.Q~ Z& (from detector efficiency determination)

MDCStmc 78.7 dpm/ /m cm2 Is the MDCSt,,, acceptable?

No (duo, adjust sample count tune and recalculate MDC&,,) Comments:

Technician Signature Pipe Interior Radiological Survey Package Page 1 of 2 Attachment 3, Page 1 BSIILVSPipeCkawler-003 Original Pipe Interior Radiological Survey Form (Continuation Form) Date: 3- 23-07 Pipe Diameter:

ZL/ /I Pipe ID#: [.It Access Point Area: Building:

Elevation: -zJ ' System: PFu-) Package Page 2 of 5 REFERENCE COP Attachment 3, Page 2 BSILVSPipeCrawler-003 Original Pipe Interior Radiological Survey Form (Continuation Form) REFERENCE COPY 0 \ Package Page 3 of 3 Attachment 3, Page 2

BSVLVSPipeCrawler-003 Original Pipe Interior Radiological Survey Form Date: 3 07 Time: 09dD Pipe ID#: 1. 1-25 Pipe Diameter:

=/ " Access Point Area: Building:

7 Elevation: -tb' System: Type of Survey Investigation Characterization Final Survey )c Other fl Gross 7 C06O Detector ID# I Sled ID# IBk3 Detector Cal Date:

9-d- 0 b Detector Cal Due Date: 9-3-0 7 Instrument:

2350- I Instrument ID #: ~0343~ Instrument Cal Date: 9 0% Instrument Cal Due Date: 4 a 7 From the Daily Pipe Survey Detector Control Form for the Selected Detector Background Value I 80 cpm MDC%e., 'Iq cpm Efficiency Factor for Pipe Diameter 0' 0btb (from detector efficiency determination)

MDC~tauc 787 dpd LoD cm2 Is the MDC,,. acceptable?

NO (duo, adjust sample count tune and recalculate MDCR,,,,)

Comments:

Technician Signature Pipe Interior Radiological Survey REFERENCECOPY Package Page 1 of & Attachment 3, Page 1 Pipe Interior Radiological Survey Form (Continuation Form) - BSVLVSPipeCrawler-003 Original Date: 3 07 Pipe Diameter: " Access Point Area: Building:

-25' System: REFERENCE COPY package Page Zof 6 Attachment 3, Page 2

-. BSIILVSPipeCrawler-003 Original Pipe Interior Radiological Survey Form Date: 3 -t4-D7 Time: /6/D Pipe Diameter:

Access Point Area: Building:

pipem#: e Elevahon:

0' System: Type of Survey Investigation Characterization Cs137 Final Survey % OOth Gross /\ C06O - Detector ID# l Sled ID# 188983 Detector Cal Date: 4-,5-0 & Detector Cal Due Date: 9 07 Instrument:

~WO-I Instrument ID #: Wft/3& Instrument Cal Date: 4 0 b Instrument Cal Due Date: 9-5-07 From the Daily Pipe Survey Detector Control Fom for the Selected Detector Background Value I cpm MDC%catt0 49 cpm Efficiency Factor for Pipe Diameter 0, o b ZIQ (from detector efficiency determination)

MDCstattc 7m dpd la cm2 Is the MDCSh,, acceptable?

@ NO (duo, adjust sample count time and recalculate MDCQ,d Comments: Technician Signature Pipe Interior Radioiogical Survey Package Page 1 of - t Attachment 3, Page I

\4r Pipe Interior Radiological Suwey Form (Continuation Form) - BSvLVSPipeCrawler-003 Original Date: 3 0 7 Pipe ID#: 1. I2 Pipe Diameter:

d " Access Point Area: Building:

f'f 4 Elevation:

0' System: REFERENCECOPY 0 Package Page of 7 Attachment 3, Page 2

SECTION 7 ATTACHMENT 3 1 PAGE DQA Check Sheet I Design # I EP 1.12 I Revision # I Original I I survey unit # I EP 1.12 I Preliminary Data Review' I Answers to the following questions should be fully documented in the Su~ey Unit Release Record Yes No NIA 1. Have surveys been performed in accordance with survey instructions in the Survey Design?

X 2. Is the instrumentation MDC for structure static measurements below the DCGLw for Class 1 and 2 survey units, or below 0.5 DCGLwfor Class 3 survey units? X 3 Is tne inslrunientation MDC for embeddedlbuned piping static measurements below the DCGL.. ') . . -. - - . . . . . . . - . . . . 4. Was the ~nstrumentation MDC for structure scan measurements, soil scan measurements and embeddedlbuned piping scan measurements below the DCGLw or, if not, was the need for add~tional static measurements or soil sam~les addressed in the suwev desian? Ix1 I 1 5. Was the instrumentation MDC for volumetric measurements and smear analysis c 10% DCGLw ? 6. Were the MDCs and assumptions used to develop them appropriate for the instruments and techniques used to perform the survey? 7. Were the survey methods used to collect data proper for the types of radiation involved and for the media being surveyed?

X 8. Were "S~ecial Methods" for data collection

~ro~erlv a~~lied for the survev unit under review? X 9. Is the data set comprised of qualified measurement results collected in accordance with the survey desian. which accuratelv reflects the radioloaical status of the facilitv?

1.1 I 1 Graphical Data Review 1 1. Has a posting plot been created? 1 I 1x1 2. Has a histogram (or other frequency plot) been created?

I 1 1x1 3. Have other clraDhical data tools been created to assist in analyzing the data?

I 1 1x1 Data Analvsis 1 1. Are all samole measurements below the DCGLw (Class 1 8 2). or 0.5 DCGLw (Class 3)? XI 1 1 2. Is the mean of the sample data c DCGLw? X 3. If elevated areas have been identified by scans andlor sampling, is the average activity in each elevated area < DCGLEMC (Class I), c DCGLW (Class 2), or ~0.5 DCGLW (Class 3)? X 4. Is the result of the Elevated Measurements Test c 1.0? X 5. Is the result of the statistical test (S+ for Sign Test or W, for WRS Test) 2 the critical value? 1 I 1x1 Comments:

FSSICharacter~zation Engineer (prinvsign)

FSSI Characterlzatlon Manager (printlsign)

CS-0912 Rcv 0 Page 1 of 1 SECTION 7 ATTACHMENT 4 1 DISC