ML20086G371
| ML20086G371 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 10/06/1975 |
| From: | Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Boyd R US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| RO-75-21, NUDOCS 8401110285 | |
| Download: ML20086G371 (2) | |
Text
_ __
.s
o 0
i~
\\
PHILADELPHIA ELECTRIC COMPANY 23O1 MARKET STREET PHILADELPHI A. PA.19101 1215)841 4000 October 6,1975 l
Mr. Roger S. Boyd O(.,
Acting Director C
N ' f,' o Division of Reactor Licensing g.,g7d
'O Office of Nuclear Reactor Regulation
/(.,
Ij i
United States Nuclear Regulatory Commission i.. y 3 '), ;ff.,;f g
Washington, DC 20555 gf ' t.y
,t
Dear Mr. Boyd:
,, y Tiw
Subject:
Environmental Deviation The following deviation was reported to Mr. Don Caphton, Office of Inspection and Enforcement, Region 1, United States Nuclear Regulatory Comnission on September 26, 1975
Reference:
License Number DPR-44/56 Environmental Technical Specifications:
2.1 Report No.:
50-277/278-75-21 Report Date:
October 6,1975 Deviation Date:
September 26, 1975 i
Facility:
Peach Bottom At'omic Power Station Units 2 & 3' R.D. -1, Delta, Pennsylvania
.173'14 Identification of Deviation:
Removal of all cooling. towers from service.
Conditions Prior to Deviation:
Both units operating at approximately 50X power. River flows in excess of 400,000 cubic feet per second.
Description of Deviation:
Large amounts of rainfall caused by Hurricane Elouisc significantly increased the Susquehanna River flow on September 25, 1975 thru September 30, 1975 The river condition during this period was very muddy and included largo quantitics of floating debris. The mud content in the river forced the removal from service of the two operable cooling towers becaQse of re-pcated plugging of the lubricating water filter. The lubricating water is supplied to the main lift pump shaft.
8401110285 751006 PDR ADOCK 05000277 S
PDR g,
a xuaruaw
.~
C/ ' 9tr. Roger S. B 0-277/278-75-21 2*
' 4 October 6, 1975 Pago 2
< Designation of Apparent Cause of Deviation:
1 High mud content in river water.
Analysis of Deviation:
There is insignificant environmental impact associated with the deviation since the river flows during the period of inoperability i
of the cooling towers was in excess of 200,000 cubic feet per second.
Corrective Action:
l The cooling towers were returned to service af ter the mud j
content in the river decreased. The
'B' cooling tower was returned to service ear ly on 9/29/75 The 'C' cooling tower was returned to service late on 9/29/75 The 'C' cooling tower remained out of scrvice for an additional day in order to permit an underwater inspection of the cooling tower lif t pump impeller and suction plenum.
Failure Data:
^
None similar.
Very truly yours,
/
1 H.
Cooney Ass Gen't Superintendent Generation Division 1
a cc:
Mr. J. P. O'Reilly Director, Region 1 Office of Inspection and Enforcement United States Nuclear Regulatory Commission 631 Park Avenue
' King of Prussia, PA 19406 4
1 i
i i
e 6
4 e
i
~
-