ML080590179

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Plum Brook Reactor Facility (Pbrf Survey Unit Release Record EP RX-134
ML080590179
Person / Time
Site: Plum Brook  File:National Aeronautics and Space Administration icon.png
Issue date: 02/25/2008
From:
US National Aeronautics & Space Admin (NASA), John H. Glenn Research Ctr at Lewis Field
To:
NRC/RGN-III
References
EP RX-134
Download: ML080590179 (31)
v • d • e


Text

Description Survey Unit Release Record Design #

Survey Unit #(s) optimized to measure gamma energies representative of Co-60. Sample #EP 3-9 fiom 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 (BSI)/LVS-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) Instnunent efficiency determinations are developed in accordance with the BSWS-002, WEP 05-006, these determinations are appropriate for the types of radiation involved and the media being surveyed.

FSSICharacterization Engineer FSSICharacterization Manager CS-0911 EP-RX 134 RX 134

1) Embedded Pipe (EP) Survey Unit RX 134 meets the definition of embedded pipe for Plum Brook Reactor Facility (PBRF) for those portions of piping embedded in the building foundation walls (Reactor Building and Hot Pipe Tunnel). The portion of piping which transits in soil between the buildings does not meet the criteria for embedded piping. The entire pipe was remediated to the more conservative buried piping release criteria. 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 RX 134 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 RX 134 were performed using a scintillation detector Revision #

Original Page 1 of 3

FSS Design # EP RX 134 Revision # Original Page 2 of 3 Survey Unit: RX 134 1.0 History/Description 1.1 The subject pipe is a 3 decon room drain line from the RB -15 to the HPT.

1.2 EP RX 134 consists of 3 diameter piping that is approximately 165 feet in length and has one elbows of 45°.

2.0 Survey Design Information 2.1 EP RX 134 was surveyed IAW Procedure #BSI/LVS-002.

2.2 100% of the 3 pipe was accessible for survey. The accessible 3 pipe was surveyed by static measurement at one foot increments, for a total of 165 survey measurements.

2.3 Surface area for the 3 piping is 730 cm2 for each foot of piping, corresponding to a total 3 piping surface area of 120000 cm2 (12 m2) for the entire length of (approximately 165) of 3 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, and applying the Nuclide Fraction (NF), provided in TBD-06-004, the survey unit that is constituted by EP RX 134 passes FSS.

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

FSS Design # EP RX 134 Revision # Original Page 3 of 3 Survey Unit: RX 134 5.5 Statistical Summary Table Statistical Parameter 3

Pipe Total Number of Survey Measurements 165 Number of Measurements >MDC 30 Number of Measurements Above 50% of DCGL 1

Number of Measurements Above DCGL 0

Mean 0.147 Median 0.130 Standard Deviation 0.094 Maximum 0.509 Minimum 0.014 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 RX 134 to be less than 25 mrem/yr. The dose contribution is estimated to be 3.7 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 RX 134 SURR & Spreadsheet Disc

SECTION 7 ATTACHMENT 1 5 PAGES

BSI EPlBP SURVEY REPORT Survey Unit Classiticatron ACTIVITY VALUES NOT BACKGROUND CORRECTED.

RP Engineer I Date

/z-zo v

EP RX 134 3" Pipe TBD 06-004 Group 1 Measurement #

gcpm ncpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity 1

14 14 21,212 2,906 0.264 2

17 17 25,758 3,528 0.321 3

11 11 16,667 2,283 0.208 4

13 13 19,697 2,698 0.245 5

15 15 22,727 3,113 0.283 6

19 19 28,788 3,944 0.359 7

15 15 22,727 3,113 0.283 8

9 9

13,636 1,868 0.170 9

14 14 21,212 2,906 0.264 10 17 17 25,758 3,528 0.321 11 18 18 27,273 3,736 0.340 12 14 14 21,212 2,906 0.264 13 11 11 16,667 2,283 0.208 14 11 11 16,667 2,283 0.208 15 18 18 27,273 3,736 0.340 16 18 18 27,273 3,736 0.340 17 17 17 25,758 3,528 0.321 18 18 18 27,273 3,736 0.340 19 9

9 13,636 1,868 0.170 20 15 15 22,727 3,113 0.283 21 16 16 24,242 3,321 0.302 22 27 27 40,909 5,604 0.509 23 12 12 18,182 2,491 0.226 24 7

7 10,606 1,453 0.132 25 15 15 22,727 3,113 0.283 26 17 17 25,758 3,528 0.321 27 11 11 16,667 2,283 0.208 28 9

9 13,636 1,868 0.170 29 7

7 10,606 1,453 0.132 30 6

6 9,091 1,245 0.113 31 10 10 15,152 2,076 0.189 32 5

5 7,576 1,038 0.094 33 8

8 12,121 1,660 0.151 34 9

9 13,636 1,868 0.170 35 14 14 21,212 2,906 0.264 36 11 11 16,667 2,283 0.208 37 10 10 15,152 2,076 0.189 38 8

8 12,121 1,660 0.151 39 7

7 10,606 1,453 0.132 40 3

3 4,545 623 0.057 41 8

8 12,121 1,660 0.151 42 8

8 12,121 1,660 0.151 43 5

5 7,576 1,038 0.094 44 6

6 9,091 1,245 0.113 1 of 4

EP RX 134 3" Pipe TBD 06-004 Group 1 Measurement #

gcpm ncpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity 45 6

6 9,091 1,245 0.113 46 7

7 10,606 1,453 0.132 47 9

9 13,636 1,868 0.170 48 6

6 9,091 1,245 0.113 49 10 10 15,152 2,076 0.189 50 5

5 7,576 1,038 0.094 51 5

5 5,814 796 0.072 52 5

5 5,814 796 0.072 53 5

5 5,814 796 0.072 54 4

4 4,651 637 0.058 55 6

6 6,977 956 0.087 56 3

3 3,488 478 0.043 57 2

2 2,326 319 0.029 58 6

6 6,977 956 0.087 59 4

4 4,651 637 0.058 60 13 13 15,116 2,071 0.188 61 4

4 4,651 637 0.058 62 4

4 4,651 637 0.058 63 5

5 5,814 796 0.072 64 7

7 8,140 1,115 0.101 65 5

5 5,814 796 0.072 66 7

7 8,140 1,115 0.101 67 7

7 8,140 1,115 0.101 68 7

7 8,140 1,115 0.101 69 2

2 2,326 319 0.029 70 1

1 1,163 159 0.014 71 2

2 2,326 319 0.029 72 5

5 5,814 796 0.072 73 2

2 2,326 319 0.029 74 3

3 3,488 478 0.043 75 3

3 3,488 478 0.043 76 5

5 5,814 796 0.072 77 2

2 2,326 319 0.029 78 3

3 3,488 478 0.043 79 6

6 6,977 956 0.087 80 3

3 3,488 478 0.043 81 2

2 2,326 319 0.029 82 4

4 4,651 637 0.058 83 6

6 6,977 956 0.087 84 7

7 8,140 1,115 0.101 85 4

4 4,651 637 0.058 86 5

5 5,814 796 0.072 87 6

6 6,977 956 0.087 88 3

3 3,488 478 0.043 2 of 4

EP RX 134 3" Pipe TBD 06-004 Group 1 Measurement #

gcpm ncpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity 89 2

2 2,326 319 0.029 90 2

2 2,326 319 0.029 91 5

5 5,814 796 0.072 92 8

8 9,302 1,274 0.116 93 5

5 5,814 796 0.072 94 2

2 2,326 319 0.029 95 2

2 2,326 319 0.029 96 3

3 3,488 478 0.043 97 4

4 4,651 637 0.058 98 3

3 3,488 478 0.043 99 9

9 10,465 1,434 0.130 100 4

4 4,651 637 0.058 101 2

2 2,326 319 0.029 102 3

3 3,488 478 0.043 103 3

3 3,488 478 0.043 104 9

9 10,465 1,434 0.130 105 3

3 3,488 478 0.043 106 4

4 4,651 637 0.058 107 4

4 4,651 637 0.058 108 1

1 1,163 159 0.014 109 4

4 4,651 637 0.058 110 6

6 6,977 956 0.087 111 1

1 1,163 159 0.014 112 8

8 9,302 1,274 0.116 113 5

5 5,814 796 0.072 114 1

1 1,163 159 0.014 115 4

4 4,651 637 0.058 116 8

8 12,121 1,660 0.151 117 6

6 9,091 1,245 0.113 118 4

4 6,061 830 0.075 119 11 11 16,667 2,283 0.208 120 3

3 4,545 623 0.057 121 6

6 9,091 1,245 0.113 122 5

5 7,576 1,038 0.094 123 6

6 9,091 1,245 0.113 124 6

6 9,091 1,245 0.113 125 6

6 9,091 1,245 0.113 126 5

5 7,576 1,038 0.094 127 8

8 12,121 1,660 0.151 128 6

6 9,091 1,245 0.113 129 8

8 12,121 1,660 0.151 130 9

9 13,636 1,868 0.170 131 11 11 16,667 2,283 0.208 132 10 10 15,152 2,076 0.189 3 of 4

EP RX 134 3" Pipe TBD 06-004 Group 1 Measurement #

gcpm ncpm Co-60 activity (total dpm)

Co-60 activity (dpm/100cm2)

Unity 133 10 10 15,152 2,076 0.189 134 9

9 13,636 1,868 0.170 135 8

8 12,121 1,660 0.151 136 11 11 16,667 2,283 0.208 137 12 12 18,182 2,491 0.226 138 11 11 16,667 2,283 0.208 139 10 10 15,152 2,076 0.189 140 9

9 13,636 1,868 0.170 141 12 12 18,182 2,491 0.226 142 14 14 21,212 2,906 0.264 143 11 11 16,667 2,283 0.208 144 16 16 24,242 3,321 0.302 145 12 12 18,182 2,491 0.226 146 9

9 13,636 1,868 0.170 147 8

8 12,121 1,660 0.151 148 11 11 16,667 2,283 0.208 149 12 12 18,182 2,491 0.226 150 11 11 16,667 2,283 0.208 151 14 14 21,212 2,906 0.264 152 13 13 19,697 2,698 0.245 153 13 13 19,697 2,698 0.245 154 13 13 19,697 2,698 0.245 155 9

9 13,636 1,868 0.170 156 16 16 24,242 3,321 0.302 157 12 12 18,182 2,491 0.226 158 11 11 16,667 2,283 0.208 159 12 12 18,182 2,491 0.226 160 10 10 15,152 2,076 0.189 161 7

7 10,606 1,453 0.132 162 14 14 21,212 2,906 0.264 163 16 16 24,242 3,321 0.302 164 15 15 17,442 2,389 0.217 165 8

8 9,302 1,274 0.116 MEAN 0.147 MEDIAN 0.130 STD DEV 0.094 MAX 0.509 MIN 0.014 4 of 4

SECTION 7 ATTACHMENT 2 18 PAGES

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

J 6

Time:

131c Pipe ID#:

13 Pipe Diameter:

3 "

Access Point Area: R( P<& - S ' ( S E )

Building:

g~p6 Elevation:

- 15' System:

kcah, Rh' DmIu Type of Survey Investigation Characterization Final Survey %

Other -

Gross C06O v'-

Cs Detector ID# / Sled ID#

44.- IS 7 ~ 3 8 3 6 4 1

LO I Detector Cal Date:

Y/S/OG Detector Cal Due Date:

?,/5/0 7

Instrument:

2320- /

Instrument ID #:

2034SF Instrument Cal Date:

7 / 5-10 6 Instrument Cal Due Date:

~ / T / o 7 From the Daily Pipe Survey Detector Control Form for the Selected Detector Background Value

1. r cpm Efficiency Factor for Pipe Diameter 0. D D O ~ @

(from detector efficiency determination)

MDCstat,,

-zk Li i d ~ m / / O w cm2 Is the MDCStaoc acceptable?

NO (if no, adjust sample count time and recalculate h4DC&,,,,,)

Comments:

7-ffy-SUEVE~' FP3-I

?&T/A-L N O T E ; 7-141s rs BuplE-P

?I PE Technician Signature

/

Pipe Interior Radiological Suwey REFERENCE COPY 0 Package Page 1 of 3, Page 1 Position 1

0 Count Time (min)

Feet into Pipe from Opening I

0 Gross Counts I 4-1 1

Gross cPm 14

-3 Net c P m fl/@

dpm/l~0crnZ

$4. ! 0-

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

Date:

11 /I 6/0 L Pipe D#: I.?

/34.

Pipe Diameter:

3 "

Access Point Area:

rL3G - 1 5 (SE)

Building:

/3( EL D(,

Elevation:

- 15' System: b e d h REFERENCE COPY Package Page & of 3, Page 2

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

,/do c

Time:

0- 6 Pipe ID#:

/ 34-Pipe Diameter:

Access Point Area: ka 96 - /5 ~ S E )

Building:

@.g~w-Elevation:

3 *(

I System:

RW DRAJ Type of Survey Investigation Characterization Final Survey Other Gross C06O /

Cs Detector ID# 1 Sled ID# # 3 7 3 % 3 &

I

/O

(

Detector Cal Date:

? h / 0 6 Detector Cal Due Date:

Instrument:

235'0- 1 Instrument ID #:

Instrument Cal Date: 7 Instrument Cal Due Date:

7/5-10 7

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

/,4 cpm MDCPstatic 71 O CPm Efficiency Factor for Pipe Diameter

6. 00 o&b (from detector efficiency determination)

MDCstatic

~4 5Y d p d 1 0 3 cm2 Is the MDCrmti, acceptable?

NO (if no, adjust sample count time and recalculate MLlCR,,,i3 Comments:

~ t V T l A ~ l / Z f 7 o N SuRr/EC/. E?3-/

P 4 l z n ~ ~

Technician Signature

/

Pipe Interior Radiological Survey REFERENCE COPY Package Page 1 of 5, Page 1

d Pipe Interior Radiological Survey Form (Continuation Form)

BSULVSPipeCrawler-002 Revision 4 Date:

I 1/20/06 Pipe ID#: !& 1 3 4 -

Pipe Diameter:

3 "

Access Point Area: @&OG

-15 (SE)

Building:

Elevation:

-/Sf system: D&ou h~&

REFERENCE COP

~-

~

~

~

Package Page & of 3, Page 2

BSULVSPipeCrawler-002 Revision 4 Pipe Interior ~adiological Suwey Form Date:

/ /,y/d 7 Time:

/ s3d pipe ID#: @ / 3%

Pipe Diameter:

3 ?

Access Point Area:

Building:

Elevation:

@ BCX System:

I&,,

/ R ~ J Type of Survey Investigation Characterization Final Survey Other /

Gross C06O J

Cs DetectorID#/SledID# +-/n 2 3 8 3 6 7 1 ht2)

~

C E

I

~

Detector Cal Date:

G / Z I 06 Detector Cal Due Date:

Instrument:

Z 3 W - /

Instrument ID #:

Instrument Cal Date:

6/21 10 L Instrument Cal Due Date:

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

cpm MDC%,,

6, G Z cpm Efficiency Factor for Pipe Diameter

0.

oo&

(&om detector efficiency determination)

MDc~tatt,~, 1534 dprnf I W 72 cm2 Is the MDC,,,,

acceptable?

NO (Ifno, adjust sample count time and recalculate MDCR,,,,)

Comments:

3-

~ E W 5 U E U ~

7 - - -

?'g4.@7'lk4(

Technician Signature Pipe Interior Radiological Survey REFERENCE COPY Package Page 1 of 7, Page 1

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

Date:

Pipe ID#:

Pipe Diameter:

3 "

Access Point Area:

& 13 I

(ZiZcx -14' Building:

L R Elevation:

System:

D ~ o w i2w 12 RN.

Package Page 3f 3, Page 2

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

Time:

Pipe Diameter:

sr+z 3"

Pipe ID#:

Access Point Area: hT-RPE UN, Building:

P,pE luu. Elevation:

- 4 '

System:

3c'cb1v' & 13.e~

Type of Survey Investigation Characterization Final survey Other L--

Gross C06O v Cs Detector ID# / Sled ID# 44-5 4

' 2 3 % ~ 7 /

A / 0 SLE D Detector Cal Date:

6/21 106 Detector Cal Due Date:

I Instrument:

2350 - /

Instrument ID

/ 347.3S Instrument Cal Date:

6/21 /OC Instrument Cal Due Date:

& / % I /V From the Daily Pipe Survey Detector Control Form for the Selected Detector Background Value

/, 4 cpm MDCRstatic 7, Og CPm Efficiency Factor for Pipe Diameter

6. 000%

(from detector efficiency determination)

MDCsbtic Id33 d ~ m l 10 cmZ Is the MDCsh,i, acceptable? @ No (if no, adjust sample count time and recalculate MD-J Comments: Pq-,-

SU;Z U E v EP? - I A

/,>A&

Technician Signature Pipe Interior Radiological Survey I REFERENCE COPY Package Page 1 of 2, Page 1

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

Pipe ID#:

Pipe Diameter:

3" Access Point Area: /A, ?,

Building:

2 P I Tw Elevation:

System:

& Dp,qJ

/

Package Page 5 of 3, Page 2

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

Time:

13 l f Pipe ID#: @ / 3 Pipe Diameter:

I t Access Point Area:

7f Building:

  1. '? r Elevation:

- 5 '

System: *

& Dwrn/

Type of Survey Investigation Characterization Final Survey %

Other J Gross C06O JIt-Cs Detector ID# I Sled ID# *-

157 2+7g3G7/

/O /

Detector Cal Date:

9/+

G Detector Cal Due Date:

4/>$0 7 Instnunent:

Z3TO-I Instrument ID #:

Z&twe%-

Instrument Cal Date:

7/5-/O 6 Instrument Cal Due Date:

7 / ~ / 0 7 From the Daily Pipe Survey Detector Control F o m for the Selected Detector Background Value

1. 4 cpm MDCKtc
7. 0 CPm Efficiency Factor for Pipe Diameter 8. oml,b (from detector efficiency deteminatlon)

MDcsmt~c 2 b L( c dpm/

\\-

cmZ Is the MDCSm,,

acceptable? @ No (if no, adjust sample count tune and recalculate MDCKafl5)

Comments: & U M ( W ~ bn)..

?3 - /

J E

i'wr/n~-

b~10l-E ; T ~ o F I E D PIPE : CIQKLE D - U E A B

&t~-/oru 13 4.

Technician Signature Pipe Interior Radiological Su'rvey EFERENCE COPY Package Page 1 of 3 Attaclunent 3, Page 1

Pipe Interior Radiological Survey Form (Continuation Form)

BSULVSPipeCrawler-002 Revision 4 Date:

Pipe Diameter:

( 1 Pipe ID#:

Access Point Area:

1 14 ?-i-Building:

!-/-PT Elevation:

System:

Dli-

& b

~

u REFERENCE COPY Package Page 5 of 2, Page 2

Date:

N/Z Z/O b Pipe Interior Radiological Survey Form Time:

BSVLVSPipeCrawler-002 Revision 4 6

pipe ID#:

Pipe Diameter:

Access Point Area:

/

I r Building:

Elevation:

-df System:

Type of Survey Investigation Characterization Final Survey %

Other Xi Gross C06O 30 Cs Detector ID# 1 Sled ID#

2-25 8-3499 1

1 6 /

Detector Cal Date:

9-533 b Detector Cal Due Date:

9-5-07 Instrument:

Z350 - /

Instrument ID #:

=341%*

Instrument Cal Date: 5 - ~ 6 Jnstrument Cal Due Date:

7-5-07 From the Daily Pipe Survey Detector Control Form for the Selected Detector Background Value

\\

CPm MDCRstatic 7

CPm Efficiency Factor for Pipe Diameter 2).300(~b (from detector efficiency determination)

MDCstatic

~

~

q q

8.

d

~

d I W D cm2 Is the MDCShtic acceptable?

No (if no, adjust sample count time and recalculate MDCRshtic)

Comments: Fp -I Pipe Interior Radiological Survey Package Page 1 of 7-, Page 1

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

Date: );; D L Pipe ID#:

Pipe Diameter:

3 "

Access Point Area:,w Building:

Elevation:

-a-System:

Qea., iZ*73p!,,J h.

Package Page of 3, Page 2

SECTION 7 ATTACHMENT 3 1 PAGE

w w

CS-09/2 Page 1 of 1

SECTION 7 ATTACHMENT 4 1 DISC

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