ML20035B272
| ML20035B272 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom, Limerick  |
| Issue date: | 03/24/1993 |
| From: | Rinaldi F, James Shea Office of Nuclear Reactor Regulation |
| To: | Hunger G PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| References | |
| GL-92-04, GL-92-4, TAC-M84287, TAC-M84288, TAC-M84294, TAC-M84295, NUDOCS 9304010121 | |
| Download: ML20035B272 (5) | |
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March 24, 1993 g
Docket Nos. 50-277, 50-278, 50-352 and 50-353 Mr. George A. Hunger, Jr.
Director-Licensing, MC 52A-5 Philadelphia Electric Company Nuclear Group Headquarters Correspondence Control Desk P.O. Box No. 195 Wayne, Pennsylvania 19087-0195
Dear Mr. Hunger:
SUBJECT:
RESPONSE TO GENERIC LETTER 92-04 " RESOLUTION OF THE ISSUES RELATED TO REACTOR VESSEL WATER LEVEL INSTRUMENTATION IN BOILING WATER REACTORS," PEACH BOTTOM ATOMIC POWER STATION, UNITS 2 AND 3, AND LIMERICK GENERATING STATION, UNITS 1 AND 2 (TAC NOS. M84294, M84295, M84287, AND M84288)
This letter acknowledges rr-ipt of your response to Generic Letter (GL) 92-04, dated September 25, 1992.
GL 92-04 was issued by letter dated August 19, 1992, to all operating Boiling Water Reactor (BWR) Licensees.
GL 92-04 requested licensees to promptly assess the impact on their facilities of potentially erroneous level indication due to non-condensible gases, and to implement compensatory measures and long term corrective actions as necessary.
We find acceptable:
(1) The Philadelphia Electric Company (PECo) review and acceptance of the BWR Owners' Group (BWP0G) generic analysis as being applicable to the Peach Bottom Atomic Power Station, Units 2 and 3 and the Limerick Generating Station, Units 1 and 2.
(2) The PECo endorsement of the BWROG commitment, outlined in its letter dated August 12, 1992, regarding schecale and plans for actions to adcress postulated errors in BWR water level instrumentation.
(3)
PECo's endorsement of the BWROG's Emergency Procedures Committee guidance letter dated August 19, 1992.
This letter provides guidance for operator action in the event of level indication errors due to non-condersible gases during RPV depressurization. We also understand that you have sensitized your operators to these potential errors consistent with the BWROG guidance.
This endorsement was confirmed in a telephone conversation with PECo dated March 19, 1993.
(4)
PECo's commitment to implement the longer term BWROG finding resulting from their experimental and analytical programs on a schedule cor.sistent with the BWROG program, as documented in their letter of August 12, 1992, i
and discussed at the October 29, 1992, meeting with the NRC.
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PDR ADOCK 05000277 p
Mr. George A. Hunger, Jr. March 24, 1993 l
l On October 23, 1992, the BWROG approved refined operator guidance developed by the Emergency Procedures Committee, sent to your Operations Superintendent on October 16, 1992, for response to instrument errors due to non-condensible gases. We feel that this guidance provides appropriate information for operators to adequately identify and deal with potentially inaccurate RPV level instrumentation, and expect that this or equivalent guidance, has been incorporated into your station operations, i
l Should you have any questions, please contact me at (301) 504-2426.
Sincer}y,
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J sep' W. Shea, Project Manager P oject Directorate I-2 Division of Reactor Projects - 1/II Office of Nuclear Reactor Regulation e c - C.-.
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Frank Rinaldi, Acting project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation 1
cc:
See next page
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t Mr. George A. Hunger, Jr.
Peach Bottom Atomic Power Station, Philadelphia Electric Company Units 2 and 3 l
Limerick Generating Station, Units 1 and 2 CC:
J. W. Durham, Sr., Esquire Mr. William P. Dornsife, Director Sr. V.P. & General Counsel Bureau of Radiation Protection Philadelphia Electric Company Pennsylvania Department of 2301 Market Street, S26-1 Environmental Resources Philadelphia, Pennsylvania 19101 P.O. Box 2063 Harrisburg, Pennsylvania 17120
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Philadelphia Electric Company ATTN: Mr. D. B. Miller, Vice President Board of Supervisors Peach Bottom Atomic Power Station Peach Bottom Township Route 1, Box 208 R. D. #1 Delta, Pennsylvania 17314 Delta, Pennsylvania 17314 i
Philadelphia Electric Company Public Service Commission of Maryland ATTN:
Regulatory Er.; ineer, Al-2S Engineering Division Peach Bottom Atomic Power Station ATTN: Chief Engineer l
Route 1, Box 208 231 E. Baltimore Street Delta, Pennsylvania 17314 Baltimore, MD 21202-3486 Resident inspector Mr. Richard McLean U.S. Nuclear Regulatory Commission Power Plant and Environmental l
Peach Bottom Atomic Power Station Review Division P.O. Box 399 Department of Natural Resources Delta, Pennsylvania 17314 B-3,.Tawes State Office Building Annapolis, Maryland 21401-Regional Administrator, Region I U.S. Nuclear Regulatory Commission Mr. Rod Krich, 52A-5 475 Allendale Road Philadelphia Electric Company King of Prussia, Pennsylvania 19406 955 Chesterbrook Boulevard Wayne, Pennsylvania 19087-5691 Mr. Roland Fletcher Department of Environment Mr. David R. Helwig, Vice President i
201 West Preston Street timerick Generating Station Baltimore, Maryland 21201 P.O. Box A Sanatoga,_ Pennsylvania 19464 j
External Operations - Nuclear Mr. John Doering Delmarva Power & Light Company Plant Manager P.O. Box 231 Limerick Generating. Station Wilmington, DE 19899 P.O. Box _A l
Sanatoga, Pennsylvania 19464 i
i t
. Mr. George A. Hunger, Jr.
Peach Bottom Atomic Power Station, Philadelphia Electric Company Units 2 and 3 Limerick Generating Station, Units 1 and 2 Mr. Richard W. Dubiel Mr. Thomas Kenny Superintendent - Services Senior Resident-Inspector Limerick Generating Station U.S. Nuclear Regulatory Commission P. O. Box A P.O. Box 596 Sanatoga, Pennsylvania 19464 Pottstown, PA 19464 Mr. Gil J. Madsen Library Regulatory Engineer U.S. Nuclear Regulatory Commission Limerick Generating Station Region I P. O. Box A 475 Allendale Road Sanatoga, Pennsylvania 19464 King of Prussia, PA 19406 Mr. Larry Hopkins Superintendent-Operations Limerick Generating Station P. O. Box A Sanatoga, Pennsylvania 19464 Mr. James-A. Huntz Superintendent - Technical limerick Generating Station P.O. Box A Sanatoga, Pennsylvania 19464 i
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Mr. George A. Hunger, Jr. March 24, 1993 On October 23, 1992, the BWROG approved refined operator guidance developed by l
the Emergency Procedures Committee, sent to your Operations Superintendent on October 16, 1992, for response to instrument errors due to non-condensible gases. We feel that this guidance provides appropriate information for operators to adequately identify and deal with potentially inaccurate RPV level instrumentation, and expect that this or equivalent guidance, has been incorporated into your station operations.
Should you have any questions, please contact me at (301) 504-2426.
Sincerely, Original signed by:
Joseph W. Shea, Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Original signed by:
Frank Rinaldi, Acting Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation cc:
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DISTRIBLITION Docket File NRC & Local PDRs i
PDI-2 Reading SVarga JCalvo CMiller JShea FRinaldi M0'Brien OGC ACRS(10)
JClifford EWenzinger, RGN-I CAnderson, RGN-I_
o PDId/YAb PDI-2/Plk PDI-2/AM, PDI-2/D l
Y 0FFICE MOBrieb JShea h N, FRi h b 'CMildede /
l IV NAME DATE h k/93 3 /2d93 Y/2h93 3 /
/93 d
0FFICIAL RECORD COPY l
DOCUMENT NAME:
PB84294. GEN
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