ML19225A344
| ML19225A344 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim, 05000471 |
| Issue date: | 06/19/1979 |
| From: | Johnson T Office of Nuclear Reactor Regulation |
| To: | Hulman L Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7907190004 | |
| Download: ML19225A344 (2) | |
Text
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,0, UNITED STATES
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NUCLEAR REGUL/ TORY COMMISSION
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E WASHINGTON, D. C. 20555 "S'fGJ*[f 9,
f s, e Jun i 91979 MEMORANDUM FOR:
L. G. Hulman, Chief Hydrology-Meteorology Branch, DSE FROM:
T. L. Johnson, Hydrologic Engineering Section Hydrology-Meteorology Branch, USE W. S. Bivins, Leader, Hydrologic Engineering Section /4k THRU:
Hydrology-Meteorology Branch, DSE
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SUBJECT:
SITE VISITS TO PILGRIM NUCLEAR PLANT BREAKWATER AND
SUMMARY
OF BREAKWATER CONDITIONS On June 1, lo79, I accompanied Ralph Architzil, Region I I&E, on an unannounced inspecti. n of the subject breakwater. The purpose of the inspection was to verify that proper repairs to a portion of the structure damaged in 1978 had been performed.
We walked the entire length of the breakwater. We found one portion of the structure had been severely damaged and that minor damage had occurred at several other places. Subsequently, Mr. Architzil stated he was infont.ed by station personnel on June 5,1979, that the severely damaged portion was not the same portion that had received damage in 1978. The originally damaged portion had been repaired, but additional damage had occurred during winter northeasters in 1979.
I again visited the breakwater with Joe Nicholson, Boston Edison Company,on June ll,1079. The purpose of the visit was to gather additional information and to meet firsthand with someone knowledgeable about the storm damage.
Mr. Nicholson told me that the damage developed progressively during several northeasters which had occurred during the past winter. The damage consisted of one large gap in the breakwater about 30' long x 20' wide x 10' deep; this was similar to the failure which had occurred last year.
In addition, several large individual rocks (about 15-20) had been displaced in the vicinity of the discharge canal, along the breakwater, and at the top of breakwater.
Displacements of smaller " filler" stones had also occurred.
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L. G. Hulman JUN 191979 Mr. Nicholson informed me that repairs to the breakwater would start within one to two weeks, depending on the contractor's schedule. He expected that the repairs would be completed within four weeks after the start of repairs.
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T. L..fAhnson, Hydrnlogic Engineering Section Hydrology-Meteoro fogy Branch Division of Site Safety and Environmental Analysis cc:
D. Muller B. H. Grier, Region I I&E W. Kreger G. Knighton W. Bivins R. Architzil, Region I I&E T. Jolynson L. H 11er ACR (16)
- 0. Parr J. Hannon
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