ML19256A850
| ML19256A850 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 01/12/1979 |
| From: | Graves R CONNECTICUT YANKEE ATOMIC POWER CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| CYH-79-029, CYH-79-29, NUDOCS 7901160233 | |
| Download: ML19256A850 (2) | |
Text
w CONNECTICUT YANKEE AT O M I C POWER COMPANY o
HADDAM NECK PLANT
[-
RR # 1. DOX 127E. EAST H AMPTON, CONN. 06424 w
January 12, 1979 CYH-79-029 Mr. Boyce Grier, Director Region I Office of Inspection and Enforcement U. S. Nuclear Regulatory Commi,ssion 631 Park Avenue King of Prussia, Pennsylvania 19406
Reference:
Facility Operating License flo. DPR-61 Docket No. 50-213 ETS/l1R/50-213/78-14
Dear Mr. Grier:
Pursuant to Connecticut Yankee Environmental Technical Specifications (ETS) Section 3.1.1.3, Connecticut Yankee hereby forwards the following report regarding fish impingement overruns.
During power operation with four main circulators running, two species of fish exceeded their monthly limit as delineated in Environmental Technical Specification Table 3.1-1.
An estimated 70 hogchoker (Trinectes maculatus) 3-6" were impinged exceeding the limit of 25 for the month.
An estimated 225 spottail shiner (flotropis hudsonius) >6" were impinged exceeding the monthly limit (Table 3.1.1) of 25.
There is no apparent cause which could be related t'o changes in plant operations.
Historically the spottail shiner and the hogchoker have been impinged almost exclusively during the fall and winter months.
Impingement report limits for the hogchoker were exceeded in September and October 1978 and in October 1977.
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7901160233
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Report limits for the spottail shiner were exceeded during the winter months of 1976, 1977 and 1978.
It is believed that the seasonal water temperatures encountered at this time of the year contribute towards increased impingement of these species.
Very truly yours, I
hw Rfchard 11. Graves Station Superintendent RilG:lillW/jwa cc: Direttor, Office of fluclear Reactor Regulation, Washington, D. C.
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