ML20072H527
| ML20072H527 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 08/18/1994 |
| From: | Miltenberger S Public Service Enterprise Group |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NLR-N94148, NUDOCS 9408260080 | |
| Download: ML20072H527 (3) | |
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Put+c Service Electnc and Gas company i
Steven E. Mittenberger Put4c SerWce Elech'c and Gas Company P O. Box 236, Hancocks Bridge. NJ 08038 609-339-1100 l
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/ tug 181994 NLR-N94148 United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:
PERMANENT HYDROGEN WATER CHEMISTRY SYSTEM HOPE CREEK GENERATING STATION FACILITY OPERATING LICENSE NO. NPF-57 DOCKET NO. 50-354 The purpose of this letter is to provide PSE&G's response to questions submitted to the NRC by the State of New Jersey Department of Environmental Protection and Energy by letter dated July 8, 1994 regarding the use of transportable hydrogen tube trailers for the Hydrogen Water Chemistry System (HWCS) at Hope Creek.
Question 1:
Are there provisions in place for securing the trailers (to the ground, to poles, etc.,)once the hydrogen tubes are connected to the system?
Response
The tube trailers are not secured in place.
Each transportable tube trailer as a complete unit weighs approximately 63,000 lbs, and is stable under high wind and normal weather conditions.
Analyses of the design basis events discussed in PSE&G letter NLR-N93182 dated April 7, 1994 (i.e., earthquake, tornado and flooding) concluded that, in the event of an earthquake or tornado, movement of the trailer was found to be acceptable since the minimum safe separation distances would be maintained in accordance with the EPRI guidelines.
In the event of the most limiting site specific design basis flood condition, the hydrogen tube trailers would be affected such that the minimum safe separation cistances might not be met, and station procedures have been revised to ensure the tube trailers would be removed off-site for this design basis flood condition.
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w" AUG 181994 Dccument Control Desk 2
NLR-N94148 Question 2:
In Attachment 1 on Page 6, Item 5,
" Flooding Analysis", it is mentioned that decision criteria are in place for removing the trailers off-site in the event of an impending flood.
How does the criteria cover the event for a flash flood?
Resnonse:
Flash flooding, or what could be termed intense local precipitation or probable maximum precipitation, typically occurs when a large amount of rain falls in a short period of time.
The yard drainage system at Hope Creek will accommodate most rainfalls.
In the event the system's capacity is exceeded, some ponding may develop.
However, due to the relative flatness of the site grade, and with no significant dikes or mounds, the resulting ponding levels would not affect the stability of the hydrogen tube trailers.
Therefore, for flash flooding, movement of the hydrogen tube trailers off-site is not required.
Please contact us should you have any questions regarding this submittal.
Sincerely,
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AUG 181994 Document Control Desk 3
NLR-N9 414 8 C
Mr.
T.
T.
Martin, Administrator - Region I U.
S.
Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Mr.
D.
Moran, Licensing Project Manager U.
S.
Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Rockville, MD 20852 Mr.
R.
Summers (SO9)
Senior Resident Inspector Mr.
K.
Tosch, Manager, IV NJ Department of Environmental Protection Division of Environmental Quality Bureau of Nuclear Engineering CN 415 Trenton, NJ 08625
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