ML080670365

Plum Brook Reactor Facility (Pbrf) Survey Unit Release Record EP-PPH 105

ML080670365
Person / Time
Site:	Plum Brook  File:National Aeronautics and Space Administration icon.png
Issue date:	03/06/2008
From:	US National Aeronautics & Space Admin (NASA), John H. Glenn Research Ctr at Lewis Field
To:	NRC/RGN-III
References
EP-PPH 105
Download: ML080670365 (28)

Text

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Survey Unit Release Record Design #

I EP-PPH 105 I Revision Y

/

Original 1 Page 1 of 3 Survey Unit #(s)

Description PPH 105

1) Embedded Pipe (EP) Survey Unit PPH 105 meets the definition of embedded pipe for Plum Brook Reactor Facility (PBRF) for those portions of piping embedded in the building foundation walls (PPH and Hot Pipe Tunnel).

The portion of piping which transits in soil under and between the buildings does not meet the criteria for embedded piping. The complete piping will be grouted, the portions embedded in the building structure will remain embedded for any future reuse, those portions in the ground can be released for unrestricted use.

2) EP PPH 105 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 PPH 105 were performed using a scintillation detector optimized to measure gamma energies representative of Co-60. Sample #EP 3-9 from Survey Request (SR)-13 was referenced for this decision.

4) Survey Instructions for this survey unit are incorporated into and performed in accordance with (IAW) the Babcock Services Incorporated (BS1)ILVS-002, 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 BSI/LVS-002, WEP 05-006, these determinations are appropriate for the types of radiation involved and the media being surveyed.

Approval Signatures Date:

I I

FSSICharacterization Engineer FSSfCharacterization Manager

~ / k / o l

FSS Design # EP PPH 105 Revision # Original Page 2 of 3 Survey Unit: PPH 105 1.0 History/Description 1.1 The subject pipe is an 8 air exhaust line from PPH Room 4 to the HPT.

1.2 EP PPH 105 consists of 8 diameter piping that is approximately 174 feet in length.

2.0 Survey Design Information 2.1 EP PPH 105 was surveyed IAW Procedure #BSI/LVS-002.

2.2 100% of the 8 pipe was accessible for survey. The accessible 8 pipe was surveyed by static measurement at one foot increments, for a total of 174 survey measurements.

2.3 Surface area for the 8 piping is 1946 cm2 for each foot of piping, corresponding to a total 8 piping surface area of 338604 cm2 (33.9 m2) for the entire length of (approximately 174) of 8 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 5.0 Data Assessment Results 5.1 Data assessment results are provided in the EP/Buried Pipe (BP) Survey Report provided in Attachment 1.

5.2 This survey unit was assessed as a building re-use scenario with all activity derived dose as a 100% Co60 nuclide distribution. This is the most conservative DCGL for the facility (11,000dpm/100cm2).

5.3 When implementing the Unity Rule, provided in Section 3.6.3 of the FSSP, four survey measurements exceeded unity. The survey unit that is constituted by EP PPH 105 passes FSS after application of Elevated Measurement Comparisons (EMC) and Elevated Measurement Tests (EMT). The EMC Unity sum was 0.105 of unity, and the EMT Unity sum was 0.559 of unity.

5.4 DCGLs for the building reuse scenario are used to demonstrate compliance with the release criterion for this release record. The DCGLs for embedded pipe are not applied, therefore the Structural Area Factors listed in Table 3-5 of the FSS are the appropriate area factors for EMC and EMT evaluations.

5.5 The area factor of 40.2 was utilized for this survey unit, this is the appropriate area factor listed in Table 3-5 of the PBRF FSSP.

5.6 Background was not subtracted from the survey measurements.

FSS Design # EP PPH 105 Revision # Original Page 3 of 3 Survey Unit: PPH 105 5.7 Statistical Summary Table Statistical Parameter 8

Pipe Total Number of Survey Measurements 174 Number of Measurements >MDC 168 Number of Measurements Above 50% of DCGL 70 Number of Measurements Above DCGL 4

Mean 0.516 Median 0.436 Standard Deviation 0.235 Maximum 1.121 Minimum 0.062 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 aggregate 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 PPH 105 to be less than 25 mrem/yr. The dose contribution is estimated to be 12.9 mrem/yr based on the average of the actual gross counts measured.

7.0 Attachments - BSI EP/BP Survey Report - Pipe Interior Radiological Survey Form - DQA Worksheet - EP PPH 105 SURR & Spreadsheet Disc

SECTION 7 ATTACHMENT 1 6 PAGES

BSI EPIBP SURVEY REPORT ACTIVITY VALUES NOT BACKGROUND CORRECTED.

RP Engineer I Date

PPH 105 8" Pipe TBD 06-004 Group 1 Measurement #

gcpm ncpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity EMC Unity EMT Unity 1

15 15 100,000 5,139 0.467 0.467 2

21 21 140,000 7,194 0.654 0.654 3

16 16 106,667 5,481 0.498 0.498 4

13 13 86,667 4,454 0.405 0.405 5

19 19 126,667 6,509 0.592 0.592 6

17 17 113,333 5,824 0.529 0.529 7

17 17 113,333 5,824 0.529 0.529 8

13 13 86,667 4,454 0.405 0.405 9

13 13 86,667 4,454 0.405 0.405 10 10 10 66,667 3,426 0.311 0.311 11 11 11 73,333 3,768 0.343 0.343 12 12 12 80,000 4,111 0.374 0.374 13 15 15 100,000 5,139 0.467 0.467 14 14 14 93,333 4,796 0.436 0.436 15 18 18 120,000 6,166 0.561 0.561 16 17 17 113,333 5,824 0.529 0.529 17 16 16 106,667 5,481 0.498 0.498 18 18 18 120,000 6,166 0.561 0.561 19 20 20 133,333 6,852 0.623 0.623 20 12 12 80,000 4,111 0.374 0.374 21 22 22 146,667 7,537 0.685 0.685 22 15 15 100,000 5,139 0.467 0.467 23 12 12 80,000 4,111 0.374 0.374 24 18 18 120,000 6,166 0.561 0.561 25 12 12 80,000 4,111 0.374 0.374 26 22 22 146,667 7,537 0.685 0.685 27 17 17 113,333 5,824 0.529 0.529 28 20 20 133,333 6,852 0.623 0.623 29 22 22 146,667 7,537 0.685 0.685 30 17 17 113,333 5,824 0.529 0.529 31 24 24 160,000 8,222 0.747 0.747 32 20 20 133,333 6,852 0.623 0.623 33 19 19 126,667 6,509 0.592 0.592 34 21 21 140,000 7,194 0.654 0.654 35 17 17 113,333 5,824 0.529 0.529 36 32 32 213,333 10,963 0.997 0.997 37 30 30 200,000 10,277 0.934 0.934 38 29 29 193,333 9,935 0.903 0.903 39 33 33 220,000 11,305 1.028 0.026 0.013 1 of 5

PPH 105 8" Pipe TBD 06-004 Group 1 Measurement #

gcpm ncpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity EMC Unity EMT Unity 40 31 31 206,667 10,620 0.965 0.965 41 29 29 193,333 9,935 0.903 0.903 42 15 15 100,000 5,139 0.467 0.467 43 29 29 193,333 9,935 0.903 0.903 44 26 26 173,333 8,907 0.810 0.810 45 22 22 146,667 7,537 0.685 0.685 46 32 32 213,333 10,963 0.997 0.997 47 30 30 200,000 10,277 0.934 0.934 48 21 21 140,000 7,194 0.654 0.654 49 29 29 193,333 9,935 0.903 0.685 50 33 33 220,000 11,305 1.028 0.026 0.013 51 30 30 200,000 10,277 0.934 0.934 52 36 36 240,000 12,333 1.121 0.028 0.015 53 32 32 213,333 10,963 0.997 0.997 54 28 28 186,667 9,592 0.872 0.997 55 25 25 166,667 8,565 0.779 0.872 56 23 23 153,333 7,879 0.716 0.779 57 30 30 200,000 10,277 0.934 0.716 58 30 30 200,000 10,277 0.934 0.934 59 26 26 173,333 8,907 0.810 0.934 60 25 25 166,667 8,565 0.779 0.810 61 29 29 193,333 9,935 0.903 0.779 62 20 20 133,333 6,852 0.623 0.903 63 27 27 180,000 9,250 0.841 0.623 64 29 29 193,333 9,935 0.903 0.841 65 24 24 160,000 8,222 0.747 0.747 1

14 14 93,333 4,796 0.436 0.436 2

14 14 93,333 4,796 0.436 0.436 3

13 13 86,667 4,454 0.405 0.405 4

12 12 80,000 4,111 0.374 0.374 5

13 13 86,667 4,454 0.405 0.405 6

13 13 86,667 4,454 0.405 0.405 7

8 8

53,333 2,741 0.249 0.249 8

18 18 120,000 6,166 0.561 0.561 9

21 21 140,000 7,194 0.654 0.654 10 14 14 93,333 4,796 0.436 0.436 11 10 10 66,667 3,426 0.311 0.311 12 12 12 80,000 4,111 0.374 0.374 13 17 17 113,333 5,824 0.529 0.529 14 12 12 80,000 4,111 0.374 0.374 2 of 5

PPH 105 8" Pipe TBD 06-004 Group 1 Measurement #

gcpm ncpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity EMC Unity EMT Unity 15 10 10 66,667 3,426 0.311 0.311 16 21 21 140,000 7,194 0.654 0.654 17 24 24 160,000 8,222 0.747 0.747 18 18 18 120,000 6,166 0.561 0.561 19 15 15 100,000 5,139 0.467 0.467 20 15 15 100,000 5,139 0.467 0.467 21 15 15 100,000 5,139 0.467 0.467 22 14 14 93,333 4,796 0.436 0.436 23 26 26 173,333 8,907 0.810 0.810 24 27 27 180,000 9,250 0.841 0.841 25 28 28 186,667 9,592 0.872 0.872 1

14 14 93,333 4,796 0.436 0.436 2

10 10 66,667 3,426 0.311 0.311 3

9 9

60,000 3,083 0.280 0.280 4

9 9

60,000 3,083 0.280 0.280 5

10 10 66,667 3,426 0.311 0.311 6

14 14 93,333 4,796 0.436 0.436 7

7 7

46,667 2,398 0.218 0.218 8

11 11 73,333 3,768 0.343 0.343 9

11 11 73,333 3,768 0.343 0.343 10 16 16 106,667 5,481 0.498 0.498 11 7

7 46,667 2,398 0.218 0.218 12 6

6 40,000 2,055 0.187 0.187 13 11 11 73,333 3,768 0.343 0.343 14 10 10 66,667 3,426 0.311 0.311 15 8

8 53,333 2,741 0.249 0.249 16 10 10 66,667 3,426 0.311 0.311 17 9

9 60,000 3,083 0.280 0.280 18 11 11 73,333 3,768 0.343 0.343 19 14 14 93,333 4,796 0.436 0.436 20 10 10 66,667 3,426 0.311 0.311 21 11 11 73,333 3,768 0.343 0.343 22 15 15 100,000 5,139 0.467 0.467 23 11 11 73,333 3,768 0.343 0.343 24 12 12 80,000 4,111 0.374 0.374 1

10 10 66,667 3,426 0.311 0.311 2

16 16 106,667 5,481 0.498 0.498 3

13 13 86,667 4,454 0.405 0.405 4

6 6

40,000 2,055 0.187 0.187 5

12 12 80,000 4,111 0.374 0.374 3 of 5

PPH 105 8" Pipe TBD 06-004 Group 1 Measurement #

gcpm ncpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity EMC Unity EMT Unity 6

13 13 86,667 4,454 0.405 0.405 7

11 11 73,333 3,768 0.343 0.343 8

10 10 66,667 3,426 0.311 0.311 9

9 9

60,000 3,083 0.280 0.280 10 17 17 113,333 5,824 0.529 0.529 11 12 12 80,000 4,111 0.374 0.374 12 13 13 86,667 4,454 0.405 0.405 13 13 13 86,667 4,454 0.405 0.405 14 10 10 66,667 3,426 0.311 0.311 15 7

7 46,667 2,398 0.218 0.218 16 10 10 66,667 3,426 0.311 0.311 17 2

2 13,333 685 0.062 0.062 18 11 11 73,333 3,768 0.343 0.343 19 15 15 100,000 5,139 0.467 0.467 20 13 13 86,667 4,454 0.405 0.405 21 12 12 80,000 4,111 0.374 0.374 22 11 11 73,333 3,768 0.343 0.343 23 14 14 93,333 4,796 0.436 0.436 24 14 14 93,333 4,796 0.436 0.436 25 7

7 46,667 2,398 0.218 0.218 26 8

8 53,333 2,741 0.249 0.249 27 12 12 80,000 4,111 0.374 0.374 28 8

8 53,333 2,741 0.249 0.249 29 10 10 66,667 3,426 0.311 0.311 30 12 12 80,000 4,111 0.374 0.374 31 8

8 53,333 2,741 0.249 0.249 32 11 11 73,333 3,768 0.343 0.343 33 8

8 53,333 2,741 0.249 0.249 34 6

6 40,000 2,055 0.187 0.187 35 9

9 60,000 3,083 0.280 0.280 36 12 12 80,000 4,111 0.374 0.374 37 10 10 66,667 3,426 0.311 0.311 38 10 10 66,667 3,426 0.311 0.311 39 16 16 106,667 5,481 0.498 0.498 40 9

9 60,000 3,083 0.280 0.280 41 13 13 86,667 4,454 0.405 0.405 42 10 10 66,667 3,426 0.311 0.311 43 19 19 126,667 6,509 0.592 0.592 44 10 10 66,667 3,426 0.311 0.311 45 9

9 60,000 3,083 0.280 0.280 4 of 5

PPH 105 8" Pipe TBD 06-004 Group 1 Measurement #

gcpm ncpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity EMC Unity EMT Unity 46 12 12 80,000 4,111 0.374 0.374 47 18 18 120,000 6,166 0.561 0.561 48 11 11 73,333 3,768 0.343 0.343 49 10 10 66,667 3,426 0.311 0.311 50 14 14 93,333 4,796 0.436 0.436 51 7

7 46,667 2,398 0.218 0.218 52 22 22 146,667 7,537 0.685 0.343 53 17 17 113,333 5,824 0.529 0.685 54 34 34 226,667 11,648 1.059 0.026 0.014 55 30 30 200,000 10,277 0.934 0.934 56 30 30 200,000 10,277 0.934 0.934 57 24 24 160,000 8,222 0.747 0.934 58 21 21 140,000 7,194 0.654 0.747 59 31 31 206,667 10,620 0.965 0.965 60 32 32 213,333 10,963 0.997 0.997 5,538 0.105 0.559 MEAN 0.516 EMC Unity EMT Unity MEDIAN 0.436 STD DEV 0.235 MAX 1.121 MIN 0.062 5 of 5

SECTION 7 ATTACHMENT 2 14 PAGES

BSIiLVSPipeCrawler-002 Revision 4 Pipe Interior Radiological Survey Form Date:

s//?/o 6 Time:

1027 Pipe ID#:

PPH - / o S Pipe Diameter:

q Access Point Area:-

"?

tkr BPE r u ~

Building: FhU m g

Elevation:

-1 L '

System:

~

I R

GX#~~@ST Type of Survey Investigation Characterization Final Survey K Other X Gross C06O L/

Cs Detector ID# I Sled ID#

BILRWJ lM4 I W 1 1

107 Detector Cal Date:

12 29/05 Detector Cal Due Date:

I L / zv / o L Instrument:

z.%

.G - 1,%

Instrument ID #:

.?.(zzZ $

Instrument Cat Date:

If / 7 /OS Instrument Cal Due Date:

1 1 / 7 / o 6 From the Daily Pipe Survey Detector Control Form for the Selected Detector Background Value 2 2 cpm MDCRstatic 1 4, 2

CPm Efficiency Factor for Pipe Diameter 0, 000&

(from detector efficiency determination)

MDCstatic 33 44 d ~ m '

1 0 0 cm2 Is the MDCShti, acceptable?

No (if no, adjust sample count time and recalculate ~vWC&,~,)

Comments:

Xutnm CUI?UE Y

g P 3 - 7 Technician Signature Pipe Interior Radiological Survey Package Page 1 of L).

REFERENCE COPY, Page 1

BSJ/LVSPipeCrawler-002 Revision 4 Pipe Interior Radiological Survey Form (Continuation Form)

Date:

~/,fl/o6 Pipe ID#:

P P N - / O r P~pe Diameter:

8 "

Access Point Area: FA& WkaE - / 2 '

Building: F,+& w s &

Elevation:

-1 Z System:

AIR E Y H ~ J S T Package Page ?of -

4, Page 2

Pipe Interior Radiological Survey Form (Continuation Form)

B S I / L V S P ~ ~ ~ C ~ ~ W I ~ ~

Revision 4 Date:

B / I P / o b Pipe ID#:

f p /.+ - 1,, 5 Pipe Diameter:

9" Access Point Area:,L, J # u ~ 5 t z c l Z Building: /z#d do d 5 ~ Elevation:

-121 System:

~

7 3

4 Package Page -

of -

REFERENCE COPY, Page 2

BSULVSPipeCrawler-002 Revision 4 Pipe Interior Radiological Survey Form Date:

c,/

/or:

Time:

1 2 5 1 Pipe ID#: PftI - 1@5 Pipe Diameter:

g" Access Point Area:

P f

/&.,

Building:

3 f~ M Elevation:

System:

~

I R

&W&ST 4-f Type of Survey Investigation Characterization Final Survey Other v

Gross C06O II Cs Detector ID# / Sled ID#

R I L W I ~ M ~ / L 107 Detector Cal Date:

I Z/ZO/OT Detector Cat Due Date:

I Z / ~ J / O 6 1

Instrument:

2 3 92-I Instrument ID #:

20348C Lnstrument Cat Date:

///l1 /O <

Instrument Cal Due Date:

7 O L I

From the Daily Pipe Survey Detector Control Form for the Selected Detector Background Value

17. 7 cpm MDCRstatlc 1 7, 5 cpm Efficiency Factor for Pipe Diameter

0. O V O ~

(from detector efficiency determination)

MDC,,,,

33 94 dpmf 1 9 cmz Is the MDCSba, acceptable?

NO (if no, adjust sample count time and recalculate MDC&wbc)

Comments:

t o v n ~ y, n -, D ~

S U R ~ I Z Y Technician Signature Pipe Interior Radiological Survey Package Page 1 of 3, Page 1

Pipe Interior Radiological Survey Form (Continuation Form)

BSI/LVSPipeCrawler-002 Revision 4 Date:

Pipe ID#:

Pipe Diameter:

g It Access Point Area: P)i-/

Building:

P P#

Elevation:

- 3 '

System:

Package Page 2 of 3, Page 2

BSYLVSPipeCrawler-002 Revision 4 Pipe Interior Radiological Suwey Form Date:

6 / / 4 $ / 0 ~

Time:

133 (

Pipe ID#:

- 1d-5 Pipe Diameter:

Access Point Area: PPfl &., '

1 Building:

PPG '

Elevation:

System: Air hHhr Type of Survey Investigation Characterization Final Survey )(

Other k Gross C06O 1/

Cs Detector ID# I Sled ID# &wn, /MI L-Vs - I 1 10 7 Detector Cal Date:

l t / z o / a g -

Detector Cal Due Date:

/ Z / Z O / O C Instrument:

2 3 50-1 Instrument ID #:

zO3+ 8 P Instrument Cal Date:

/ / / I ~ / O <

Instrument Cal Due Date:

/t//7 06 From the Daily Pipe Survey Detector Control Form for the Selected Detector Background Value

/ 7, 7 cpm MDCRs,txc I 7. s cpm Efficiency Factor for Pipe Diameter

0.

~ 0 0 1 5 (fiom detector efficiency determination)

MDCsmzc 3344 d

~

d cm2 Is the MDCsbtlc acceptable?

a r

(

i f

n o

ad~ust sample count time.hi recalculate M D G )

Comments:

&NTI NI/AW~#J 5 Up v E-f Technician Signature Pipe Interior Radiological Suwey 3

Package Page 1 of -, Page 1

Pipe Interior Radiological Survey Form (Continuation Form)

BSIlLVSPipeCraw1e.r-002 Revision 4 Date:

Pipe Diameter:

Pipe ID#:

8" Access Point Area:

R m Building:

P PI+

Elevation:

I System:

a!, E~HAC)ST Z

3 Package Page -

of -, Page 2

BSVLVSPipeCrawler-002 Revision 4 Pipe Interior Radiological Survey Form Date:

6 / / s / 0 6 rime:

(,

Pipe ID#: ? P]I - I 4 5 Pipe Diameter:

H Access Point Area:

Building:

pi9 I4 Elevation:

Type of Survey Investigation Characterization Final Survey &

Other -

Gross

~ 0 6 0 /

Cs Detector ID# I Sled ID#

BCI~kwwrnzar L v S - 1 /

1 0 7 Detector Cal Date:

12 - 2 o - 0 Detector Cal Due Date:

j 2-to-O b

Instrument:

23 \\W -1 Instrument ID #:

2 0 1 + % ~

Instrument Cal Date:

7 / / / 7 / 0 ~

Instrument Cal Due Date:

11/17 06 From the Daily Pipe Survey Detector Control Form for the Selected Detector Background Value 173 cpm MDCKmc i7.6 cpm Efficiency Factor for Pipe Diameter O.0001.4 (from detector efficiency determination)

M D C, ~ ~, ~ 3344 dptn/

I cm2 Is the MDCStatic acceptable?

NO (if no, adjust sample count time and recalculate MDCR,,,,,,)

Comments: C m

ciJme+~ 5 ~, 7 ~, 5 + e p 3 - 7

&wnf'LF-JE n

Technician Signature

/,-

Y V

Pipe Interior Radiological Survey Package Page 1 of Ad03 33N3U333tl 4, Page 1

BSIILVSPipeCrawler-002 Revision 4 Pipe Interior Radiological Survey Form (Continuation Form)

Date:

6/15/06 Pipe ID#: PpH -A@ S Pipe Diameter:

It Access Point Area: p

]Zrn&&

Building:

P ?

Elevation:

dl System:

fi& t-~cr-r r

Package Page & of &, Page 2

BSWSPipeCrawler-002 Revision 4 Pipe Interior Radiological Survey Form (Continuation Form)

Date:

& / / ~ / d b Pipe ID#:

PPtf - /OF Pipe Diameter:

S- "

Access Point Area: f Pd-,@ 4 Building:

Pp Elevation:

0' System:

$ R ~

~

REFERENCE COPY Package Page 3 of '&, Page 2

SECTION 7 ATTACHMENT 3 1 PAGE