ML20133N403
| ML20133N403 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 10/22/1985 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Bauer E PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| References | |
| GL-84-11, IEB-83-02, IEB-83-2, NUDOCS 8510290418 | |
| Download: ML20133N403 (3) | |
Text
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October 22 1985
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Docket No. 50-278 Mr. Edward G. Bauer, Jr.
Vice President and General Counsel Philadelphia Electric Company 2301 Market Street Philadelphia, Pennsylvania 19101
Dear Mr. Bauer:
SUBJECT:
PEACH BOTTOM ATOMIC POWER STATION, UNIT 3, PIPING INSPECTION PROGRAM (GENERIC LETTER 84-11)
We have reviewed the submittals dated June 4 and October 5,1984 from the Philadelphia Electric Company (PECO or the licensee) regarding the inspection program of reactor coolant stainless steel piping in response to Generic Letter 84-11 (" Inspections of BWR Stainless Steel Piping," April 19,1984).
PECo indicated that during the 1985 Unit 3 refueling outage, a total of 31 welds, including six overlay repaired welds would be inspected by qualified ultrasonic examiners.
PECo aise indicated that it planned to continue the use of the moisture detection system as an additional surveillance measure to detect small primary system leakage.
Based on our review of the licensee's submittals, we conclude that the licensee's inspection plan for the 1985 refueling outage meets the guidelines of Generic Letter 84-11 with the exception of the proposed sample expansion logic when cracks were found.
PECo proposed to expand the samples only for the size of pipe where cracks were found, where as the sample expansion scheme recommended in IE Bulletin 83-02 required doubling of the original sample sizes, irrespective of pipe sizes.
Currently, the pipe inspection program is underway at Peach Bottom Unit 3.
As a result of finding cracks in a number of pipe welds, PECo has expanded the sample size to a total of 132 welds, which includes essentially all inspectable welds that were considered to be susceptible to intergranular stress corrosion cracking. Therefore, the sampling requirements of Generic Letter 84-11 have now been met.
We, therefore, conclude that the licensee's actions as they portain to the inspection guidance of Generic Letter 84-11 are acceptable and conclude that no further action is required under the inspection portion of Generic Letter 84-11.
8510290418 851022 DR ADOCK 050 8
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Mr. Edward G. Bauer, Jr., The staff, however, has met with the licensee on September 5, September 17 and Octcber 1,1985, to discuss the licensee's proposed mitigative actions involving the recently discovered cracked welds at Unit 3.
NRC staff review of these mitigative actions is being conducted in accordance with Generic Letter 84-11 guidance on mitigation and will be the subject of pending NRC action.
Sincerely,
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John F. Stolz, Chief Operating Reactors Branch f4 Division of Licensing cc: See next page W,[lIJTR T Ri! TION PYChen ket File 3 JPartlow NRC PDR ACRS-10 L PDR Ringram ORB #4 Rdg GGears HThompson Gray File OELD WKoo EJordan WHazelton BGrimes BDLiaw 0
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Mr. E. G. Bauer, Jr.
Peach Bottom Atomic Power Station, Philadelphia Electric Company Units 2 and 3 cc:
Mr. Eugene J. Bradley Mr. R. A. Heiss, Coordinator Assistant General Counsel Pennsylvania State Clearinghouse Philadelphia Electric Company Governor's Office of State Planning 2301 Market Street and Developnent Philadelphia, Pennsylvania 19101 P.O. Box 1323 Harrisburg, Pennsylvania 17120 Troy B. Conner, Jr., Esq.
1747 Pennsylvania Avenue, N.W.
Mr. Thones M. Gerusky, Director Washington, D.C.
20006 Bureau of Radiation Protection Pennsylvania Department of Thomas A. Deming, Esq.
Environmental Resources Assistant Attorney General P.O. Box 2063 Department of Natural Resources Harrisburg, Pennsylvania 17120 Annapolis, Maryland 21401 Mr. Albert R. Steel, Chairman Philadelphia Electric Company Board of Supervisors ATTN: Mr. R. Fleishmann Peach Bottom Township Peach Bottom Atomic R. D. #1 Power Station Delta, Pennsylvania 17314 Delta, Pennsylvania 17314 2
Mr. M. J. Cooney, Superintendent Generation Division - Nuclear Philadelphia Electric Company 2301 Market Street Philadelphia, Pennsylvania 19101 Mr. Anthony J. Pietrofitta, General Manager Power Production Engineering Atlantic Electric P. O. Box 1500 1199 Black Horse Pike Pleasantville, New Jersey 08232
,no Resident Inspector U.S. Nuclear Regulatory Commission Peach Bottom Atomic Power Station P.O. Box 399 Delta, Pennsylvania 17314 Regional Administrator, Region I l
U.S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 l
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