ML19320A368
| ML19320A368 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 12/30/1974 |
| From: | Cavanaugh W, Phillips J, Rueter D ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML19320A364 | List: |
| References | |
| 50-313-74-10, NUDOCS 8005010868 | |
| Download: ML19320A368 (4) | |
Text
!SOO5 010 NI
- ~
e 50-313/74-10 NON-ROUTINE, NON-RADIOLOGICAL ENVIRONMENTAL REPORT NO.
1.
2.
Report Date:
12-30-74 3.
Occurrence Date: 12-17-74 4.
Facility: Arkansas Nuclear One-Unit 1 Russellville, Arkansas S.
Identification of Occurrence:
Fish kill on the intake screens exceeding 3000 lb. based on an 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> sample period.
6.- Conditions Prior to Occurrence:
FMth Reactor Power Steady-State Power MWe Net. Output Ilot Standby Percer.t of Full Power Cold Shutdown
' Refueling Shutdown Routine Startup Operation Routine Shutdown Operation
~'
80,-100 Load Changes During Routine Power Operation Water 4 circulating water pumps were in operation.
Other (Specify)-
temperature, as measured at the inlet to the condenser wa,ter box, was 44F and the anbient air temperafure was 32F at 8:00 a.m.
7.
Description of Occurrence:
12-17-74 using procedure 1607.10, During routine fish-impingevent monitoring Monitoring Fish Impinged on'ANO-1 Intake Screens, 6129 lb. of fish weTe collected during an 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> sample period.
The projected fish kill for the and ending at 8:00,a.m.
24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period beginning at 8:00 am 12-17-74 A mixture of Gizard 12-18-74 was 18,387 lb. based on the 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> sampic.
Other fish made up and Threadfin Shad made up 99.9% of the total weight.Threadfin Shad mad
.1% of the total weight of fish.
number of Shad.
3.
NSP-10, Rev. O Page 1 of 3 July _5, 1974
a
- f; AL REPORT NO, 50-313/74-10 s
-NON-ROUTINE, NON-RADIOLOGICAL ENVIRONMENT
- 8. - Designation of Apparent Cause of Occurrence:
Procedure Design Unusual Service Nbnufacture.
Condition Including Environmental Installation /
Construction Component Failure Operator -
The apparent cause was due to a natural die off of Other (Specify)
Threadfin Shad during the winter season.
9.
Analysis of Occurrence:
h b
The only noticeable Environmental Impact was the removal of t e The fish that were collected were mentioned fish from the lake.
The fish tnat were not disposed of through land fill operation. collected were disp
~10.
Corrective Action:
l t Long term studies are in progress to determine the effects of p i
Data
- operation on the aquatic ecosystems'of the Dardanelle Reservo from this report and other data obtained is fed back.into thes i
in order to ensure to determine what changes might be made to the stud es impact. Review by that adequate data 'is obtained for evaluating plantf these studies will determine
. APT,L and its consultants of the results owhat corrective ffects on the reservoir.
8
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a Page 2 of 3
-NSP-10, Rev. O July S, 1974
e NON-ROUTINE, NON-RADIOLOGICAL ENVIRONMENTAL REPORT NO. 50-313/74-10 11.
Failure Data:
The circumstances of this report are similar to those reported in Non-Routi.nc, Non-Radiological Environmental Report Nos. 50-313/74-1 through 50-313/74-9.
~
c 12.
Reviews and Approvals:
Reviewed and Approved by: Plant Safety Committee Yes (X )
No ( )
Plant Superintendent Yes (X )
No ( )
t
Reference:
JWA-755 Date: 12/26/74
/2!TO 79
. Reviewed by:
Date:
Licerising Supervisor
/
Approved by* l - ]QY/ yy Cs/ (
Date: /)2 -U ~ l V Safet[ReviewCommittee' Approved by:1, M,_ C_ _ _ _//,
Date: / 2 /Jo/7d__
/
' ) nager of Nuclear SeYv'ic [ A Approved by M///'gg
//.,4,/
Date:
-Y
/
Director 'of' Power Production Date: / ' '. /
, Approved by:
//t Senior Vice President
(
July 5, 1974 NSP-10, Rev. O Page 3 of 3
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/
e.
AEC DISTRIBUT!C': FOR PART SO DOCKET t.1ATERI AL (TET.iPOR ARY FORi.1) 12 CONTROL NO:
ENVIRO FILE:
F ROM: Arkansas Power & Light Co.
DATE OF COC DATE REC'D LTR TWX RPT OTHER Little, Rock, Ark 12-30-74 1-3-75 xxxx J.D. Phillips TO:
ORIG CC OTHER SENT AEC PDR xxxxxx Mr. E.G. Case 1-signed 39 SENT LOCAL PDR CLASS UT! CLASS PROPINFO INPUT NO CYS REC'D DOCKET NO:
W 50-313 xxxxxxx DESCRIPTION:
ENCLOSURES:
Ltr trans the Following:
Non-goutine Environmental Report #74-10 on 12-17-74 concerning fish kill on the intake s reens exceeding 3000 lb. based on an 8hr
._.., " T '-'~~ W ji C.:._2 s,,. n 1)U L u sample peri od........
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