ML19329A318
| ML19329A318 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 01/02/1976 |
| From: | Parker W DUKE POWER CO. |
| To: | Rusche B Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8001020891 | |
| Download: ML19329A318 (4) | |
Text
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DESCRIPTION:
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ENCLOSURES:
Ler.crans theIfollowing:
into c'oncerning risn. impingement on.12.2s-/5
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_f January 2, 1976 Mr. Benard C. Rusche u
Director of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C.
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Re:.Oconee Nuclear Station p"'C: '
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Docket Nos. 50-269, -270, -287 I k u 1
Dear Mr. Rusche:
On December 29, 1975, four of the 24 condenser cooling water (CCW) intake screens at the Oconee Nuclear Station were inspected. A total of 4825 small fingerling fish, weighing 12.1 Kgs., had collected on the screens.
The fish were removed from the screens and categorized, where possible, as to screen location, type, size, degree of decomposition, and weight. This information is tabulated in Enclosure 1.
On December 30, 1975, six of the 24 condenser cooling water screens were inspected in place by divers. A total of 16,531 small fingerling fish had collected on the screens.
The fish were categorized, where possible, as to screen location, type and size. This information is tabulated in Enclosure 2.
The mortality of these fish had an insignificant effect on the fisheries resources in Lake Keowee.
Very truly yours, Nhl A-William O. Parker, Jr. Y N
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CC Mr. H. J. Logan 7-T-[
S. C. Wildlife & Marine Resources Department
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Summary of Fish Impingement Per Intake Screen For December 29, 1975 Oconee Nuclear Station Screen IB1 Total Fish Impinged - 1035 Species Composition Size Groups Cecomposition*
Weight Threadfin shad - 360 2-4 cm - 245 Class 1 -
0 2.6 kas Unidentifiable - 675 4-6 cm - 790 Class 2 - 360 Class 3 -
0 Class 4 - 675 Screen 1B2 Total Fish Impinged - 1315 Species Composition Size Groups Decomposition Weight Threadfin shad - 515 2-4 cm - 305 Class 1 -
0 3.3 kgs Unidentifiable - 800 4-6 cm - 1010 Class 2 - 515 Class 3 -
0 Class 4 - 800 Screen 1C1 Total Fish Impinged - 11t5 Species Composition Size Groups Decomposition Weight Threadfin shad - 265 2-4 cm - 155 Class 1 -
0 2.8 kgs Unidentifiable - 900 4-6 cm - 1010 Class 2 - 265 Class 3 -
0 Class 4 - 900 Screen IC2 Total Fish Impinged - 1310 Species Composition Size Groggs Decomposition Weight Threadfin shad - 485 2-4 cm - 340' class 1 -
0 3.4 kgs Unidentifiable - 825 4-6 cm - 970 Class 2 - 485 Class 3 -
0 Class 4 - 825
- Class 1 - No noticeable decomposition Class 2 - Slightly decomposed Class 3 - Badly decomposed, identifiable Class 4 - Badly decomposed, unidentifiable I
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Totals of Observed Impinged Fish per Screen by SCUBA 12/30/75 Oconee Nuclear Station Screen 1Al Total Fish Impinged - 7800 Species Composition Size Groups Threadfin shad - 7800 4-6 cm - 5250 6-8 cm - 2325 8-10cm - 225 Screen IA2 Total Fish Impinged - 5935 Species Composition Size Groups Threadfin shad - 5935 4-6 cm - 4550 6-8 cm - 1275 8-10cm - 110 Screen 2B1 Total Fish Impinged - 198 Species Composition Size Groups Threadfin shad - 198 4-6 cm - 146 6-8 cm - 45 8-10cm -
7 Screen 2B2 Total Fish Impinged - 6 Species Composition Size Groups Threadfin shad - 6 4-6 cm - 6 Screen 3B1
-Total Fish Impinged - 1909 Species Composition Size Groups Threadfin shad - 1908 4-6 cm - 1847 Yellow perch -
1 6-8 cm -
62 Screen 3B2 Total Fish Impinged - 683 Species Composition Size Groups Threadfin shad - 683 4-6 cm - 675 6-8 cm -
8
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