ML19326E057
| ML19326E057 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 07/02/1980 |
| From: | Daltroff S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-80-10, NUDOCS 8007250511 | |
| Download: ML19326E057 (5) | |
Text
i-i YW PHILADELPHIA ELECTRIC COMPANY 23O1 M ARKET STREET
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P.O. BOX 8699 PHILADELPHIA. PA.19101 SHIELDS L. DALTROFF ELECTRIC Pm o CTiom July 2, 1980 Docket Nos.: 50-277 50-278 IE Bulletin 80-10 Mr. Boyce H.
Grier, Director Office of Inspection and Enforcement Region I U.S.
Nuclear Regulatory Commission 631 Park Avenue I
King of Prussia, PA 19406
Dear Mr. Grier:
This letter is in response to IE Bulletin 80-10 forwarded to us on May 6, 1980, concerning contamination of non-radioactive systems and resulting potential for unmonitored, uncontrolled release of radioactivity to the environment.
The
" Actions to be Taken by Licensee" are restated below with our responses.
Actions to be Taken b_y_ Licensee 1.
Review your facility design and operation to identify systems that are considered as nonradioactive (or described as nonradioactive in the FSAR), but could possibly become radioactive through interfaces with radioactive systems, i.e.,
a nonradioactive system that could become contaminated due to leakage, valving errors or other operating conditions in radioactive systems.
In particular, special consideration should be given to the following systems: auxiliary boiler system, demineralized water system, isolation condenser system, PWR secondary water clean-up system, instrument air system, and the sanitary waste system.
THIS DOCUMENT CONTAINS P00R QUAUTY PAGES 4 i
8 0 0 7 2 50 Fil
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Mr. Boyce H.
Grier July 2, 1980
Response
The review to determine which nonradioactive systems interface with radioactive systems creating a potencial for contamination has been completed for Peach Bottom Units 2 and 3.
A list of the interfaces between radioactive and nonradioactive systems are included in Appendix A to this response.
2.
Establish a routine sampling / analysis or monitoring program for these systems in order to promptly identify any contaminating events which could lead to unmonitored, uncontrolled liquid or gaseous releases to the environment, including releases to on-site leaching fields or retention ponds.
Response
For the radioactive and nonradioactive interfacing systems identified in Appendix A which have adequate instrumentation or sample points, a routine sampling / analysis or monitoring program will be established by August 1,
1980.
For the systemu identified in Appendix A which do not have adequate instrumentation or sample points (those denoted by
- ),
a modification program has been initiated to meet the requirements of the Bulletin.
Very truly yours,
- a. n, nj
J.....~.-~~s+
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f' APPENDIX A IE BULLETIN 80-10 NINRADI0 ACTIVE RADIOACTIVE NONRAD10 ACTIVE TO SYSTEM PRINT NO.
SYSTEH PRINT MO.
RADIOACTIVE SYSTEM INTERFACE REHARKS Auxiliary M-324 Hain Steam M-303 Main Turbine - Seal Steam Sample auxiliary Boiler nuclear & auxiliary boiler boiler water when check valve & MO-2469 leakage.
in service.
Asx111ery H-324 Hein Steam H-303 Hain Turuane - stop valve and Water and oil go to Baller turbine bypass valve oily barrels which are drain to oily weste interceptor sampled.
on H-321.
Asx111ary H-324 Main Steam M-308 Reactor Teed Pump Turbine -
Spool piece is 5311er nuclear steam & aux 111ery removed, no sampling steam via spool piece and necessary.
manus,1 valve.
Auxiliary H-324 Main Steam H-365 High Pressure Co11 ant Spool piece la nuclear removed, no sampling Baller Injection System steam & auxiliary steam via necessary.
spool piece and manual valve.
Auxiliary H-324 Main Steam H-359 Reactor Core Isolation Spool piece is Es11er Cooling System - nuclear removed, no sampling s: can & auxiliary steam via necessary.
s,3c o l piece and manual valve.
Deatneralized M-319 Radwaste H-370 Flush water (demineralized)
Sample drain line.
Water to radwaste release monitor via 1 closed valve. Spool piece is left in manually.
Decineralised M-319 Condensate H-309 Demineralized Water pump Sample dominerallred Wotor Storage Tank trips and pump discharge water tank in (CST) valves leak back from CST.
water plant.
ig*vice M-314 Reactor M-314 RBCCW is most probable leak Already sampled by Water Building source.
installed system.
Closed Cooling Water (RBCCW)
Service M-314 Service M-314 Service water flush connection Sample service water Water Water to radweste.
side. Sample tap required.
- Sorwice M-314 Recombiner M-331 Recombiner condenser leak or Samp1t service water Water H2 sample cooler leak.
side. Sample tap required.
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NINRADIOACTIVE RADIOACTIVE NONRAD10 ACTIVE TO SYSTEM FRINT NO.
SYSTEM PRINT NO.
RADIDACTIVE SYSTEM INTERFACE REMARKS Sorwice M-314 Fuel Fool H-314 Fuel pool heat exchanger (Hz) via Sample service water Water Hx leak when booster pump trips.
side. Sample tap required.
- Sorwice M-314 Residual M-313 RHR pump seal water coolers Sample service water Wctor Heat Removal via cooler leak.
side. Sample tap (RHR) required.
Migh M-315 RHR M-361 RHR Hz. leak.
Sample high pressure Frassure service water side.
Ecorgency Sample system being Service installed with Water Modification 21C.*
Rosetor M-316 Reactor M-316 RWCU non-regenerative Radiation sample Building Sheet 1 Water Sheet 1 Hz. leak.
system installed.
Closed Cooling Cleanup Wctor (RBCCW)
(RWCU)
RBCCW M-316 Reactor M-316 Sample cooler Hx. leak / reactor Installed rad son.
th*et 1 Water Sheet 1 water sample.
Terbine M-316 Filter M-316 Filter Demineralizer Sampic TBCW.
Building Sheet 2 Demineralizer Sheet I hold pump leak.
l Cooling Condensate Water (TBCW) l-h TBCW M-316 RBCCW M-316 Contaminated RBCCW. leaks through Sample TBCW. Leaks l
Sheet 2 Sheet 1 3 way valves. A0-2352 & 2354.
from this system go I
to normal vaste drains, direct to the river.
I i
Dryuell (D/W)
M-327 RBCCW M-327 Contaminated RBCCW 1eaks through Sample D/W chilled l
Chilled 3 way valves A0-20245 & 20246.
water. Leaks from i
Octor this system to to normal waste drains, direct to the river.
4 Sarwice M-320 Radweste M-320 Back leakage through air Sample breathing Air Sheet 1 Sheet I receiver.
air. A separate compressed air system for the d
redweste system is echeduled to be f
installed.
- 1 i
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_ _. I N!NRADI0 ACTIVE RADIOACNIVE NONRADICACTIVE TO SYSTEM _
PRINT NO.
SYSTEM FRINT NO._
RADI0 ACTIVE _ SYSTEM INTERTACE REMARKS Icstrument.
M-320 Inst N2 M-333 Back leakage through c*
.i valve Sample Inst. Air.
i Air and A0-4230 A & 5 Unit 2 needs sample tap.
Cires'ating M-312 Hotwell H-312 When Hotwell i s.,,
.v.-
..ho v e Contamination swipe Tctor normal for water v-
. e and when water box is there is a tube is.
open. Composite circulating water sample during operation.
l l
Sorwice M-331 Recombiner M-331 Sample cooler leak.
With service water
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Water Sheet 1 11 2 Analyzer Sheet 2 inlet throttled (off normal condition) sample pressure could exceed service water preppure. Could leak radioactive gas into service water - Sample service water - Sample tap needed.
- l Service M-331 Recombiner M-331 Recombiner closed cooling With service water
}
Wator Sheet 1 Closed Sheet 2 water heat exchanger leak.
inlet throttled (off I
Cooling normal) RCCW pressure Water (RCCW) could exceed service water pressure -
Sample service water -
l Sample tap needed.*
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