ML20196C206
| ML20196C206 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 12/02/1988 |
| From: | Murley T Office of Nuclear Reactor Regulation |
| To: | Mcgowan G BALTIMORE GAS & ELECTRIC CO. |
| References | |
| GL-87-12, GL-88-17, NUDOCS 8812070220 | |
| Download: ML20196C206 (4) | |
Text
W Docket Nos. 50-317 DISTRIBUTION iso Enclosure and 50-318 Docket file TMurley NRC PDR JSnierek Local PDR DCrutchfield DEC t 2 ma PDI-1 Rdg CTrarrnel SVarga Malukjian Mr. George V. McGowan BBoger PCapra Chairman of the Board CVogan Baltiror2 Gas and Electric Company SMcNeil Post Office Box 1475 OGC Baltimore, Maryland 21203 EJordan BGrimes
Dear Mr. McGowan:
ACRS (10)
SUBJECT:
LOSS OF DECAY HEAT REMOVAL We have just issued Generic Letter 88-17 which addresses loss of decay heat removal (DHR) during nonpower operation.
This letter was issued because of the potential serious consequence of loss of shutdown cooling concurrent with significant core decay heat.
Further, it is our belief that the industry as a whole has not aggressively responded to resolve the concern following its identification in our earlier Generic Letter 87-12.
In particular, the industry's response to the Generic letter 87-12 was deficient in the areas of (1) prevention of accident initiation, (2) mitica-tion of accidents before they potentially progress to core danace, and (3) control of radioactive material if a core damage accident should occur.
Generic letter 88-17 prescribes expeditious actions which should imediately case the concern; and parallel, but longer tem, prograrr.ed enhancements which effectively address the root cause of the problems and permit greater flexi-bility in operation.
We consider this issue to be of high priority and request that you assure that your organization addresses it accordingly.
Sincerely, oriw a,u-ity Itc:aaE. Wrlof Thomas E. Murley, Director Offf ce of Nuclear Reactor Regulation belosure:
Goneric Letter 87-12 cc w/o
Enclosure:
See next page W
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7 Mr. George V. McGowan llaltimore Gas A Electric Company Calvert Cliffs Nuclear Power Plant cc:
Mr. J. A. Tiernan Baltimore Gas and Electric Comoany Calvert Cliffs Nuclear Power Plant MD Rts. 2 A 4 P. O. Box 1535 Lusby, Maryland 20657.
Mr. John M. Gott, President Calvert County Roard of Comissioners Prince Frederick, Maryland 20768 D. A. Rrune, Esq.
General Counsel Raltimore Gas and Electric Company P. O. Pox 1475 Baltimore, Maryland ?1203 Mr. Jay E. Silberg, Esq.
Shaw, Pittman, Potts and Trowbridge j
1800 M Street, NW Washingtnn, OC ?0036 Mr. W. J. Lipoold, General Supervisor Technical Services Engineering Calvert Cliffs Nuclear Power Plant MD Rts 2 A 4 P. O. Box 1535 Lusby, Maryland 20657 Resident Inspector c/o U.S. Nuclear Regulatory Comission P. O. Box 437 Lusby, Maryland 20657 Department of Natural Resources Energy Administration, Power Plant Siting Procram ATTN: Mr. T. Magette Tawes State Office Building Annapolis, Maryland 21204 Regional Administrator, Region i U.S. Nuclear Regulatory Comission 4/6 Allendale Road King of Prussia, Pennsylvania 19406
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e Docket Nos. 50-317 DISTRIBUTION w/o Enclosure and 50-318 Docket file TMurley NRC PDR JSnierek Local PDR DCrutchfield O h w 2 l]33 PDI-1 Rdg CTramel SYarga HBalukjian Mr. George V. McGowan RBoger PCapra Chairman of the Board CVogan Baltimore Gas and Electric Company SMcNeil Post Office Box 1475 OGC Baltimore, Maryland 21203 EJordan BGrimes
Dear Mr. McGowan:
ACRS (10)
SUBJECT:
LOSS OF DECAY HEAT REMOVAL We have,iust issued Generic Letter 88-17 which addresses loss of decay heat removal (DHR) during nonpower operation.
This letter was issued because of the potential serious consequence of loss of shutdown cooling concurrent with significant core decay heat.
Further, it is our belief that the industry as a whole has not aggressively responded to resolve the concern following its identification in our earlier Generic Letter 87-12.
In particular, the industry's response to the Generic letter 87-12 was deficient in the areas of (1) prevention of accident initiation (21 mitiga-tion of accidents before they potentially progress to core damage, and (3) control of radioactive material if a core damage accident should occur.
Generic letter 88-17 prescribes expeditious actions which should imediately ease the concern; and parallel, but longer term, prograrred enhancements which effectively address the root cause of the problems and pennit greater flexi-bility in operation.
We consider this issue to be of high priority and request that you assure that your organization addresses it accordingly.
l Sincerely, oci;tol nmu i by nc aa ::. utley Thomas E. Murley, Director Office of Nuclear Reactor Regulation
Enclosure:
Generic Letter 87-12 cc w/o
Enclosure:
See next page
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My, George V. McGowan Baltimore Gas A Electric Company Calvert Cliffs Nuclear Power Plant t
CC' Mr. J. A. Tiernan Baltimore Gas and Electric Company Calvert Cliffs Nuclear Power Plant MD Rts. 2 A 4 P. O. Box 1535 Lusby, Maryland 20657 Mr. John M. Gott, President Calvert County Roard of Comissioners Prince Frederick, Maryland 20768 D. A. Rrune, Esq.
General Counsel Raltimore Ges and Electric Company P. O. Pox 1475 Baltimore, Maryland 21P03 Mr. ilay E. Silberg, Esq.
Shaw, Pittman, Potts and Trowbridge 1800 M Street, NW Washington, DC 70036 Mr. W. J. Lippold, General Supervisor Technical Services Engineering Calvert Cliffs Nuclear Power Plant MD Rts 2 A 4 P. O. Box 1535 Lusby, Maryland 20657 Resident inspector c/o U.S. Nuclear Regulatory Comission P. O. Box 437 Lusby, Maryland 20657
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Department of Natural Resources Energy Adminittration, Power Plant Siting Procram ATTN: Mr. T. Magette Tawes State Office Ruilding Annapolis, Maryland 21204 Regional Administrator, Region !
U.S. Nuclear Regulatory Comission 475 Allendale Road King of Prussia, Pennsylvania 19406
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