ML19320A431

Nonroutine Nonradiological Environ Rept 50-313/75-03:on 750117,fish Kill on Intake Screens Was 6,790 Lb for 24-h Period.Caused by Natural Die Off of Threadfin Shad During Winter season.Long-term Studies in Progress

ML19320A431
Person / Time
Site:	Arkansas Nuclear
Issue date:	01/21/1975
From:	Cavanaugh W, Pettit A, Reuter D ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML19320A427	List: ML19320A426 ML19320A431
References
NUDOCS 8005050436
Download: ML19320A431 (4)

Text

, 8005050 D 6 .

1. Non-Routine, Non-Radiological Environmental Report No. 50-313/75-3

2. Report Date: 1/21/75 3. Occurrence Date: 1/17/75

4. Facility: Arkansas Nuclear One-Unit 1 Russellville, Arkansas

. 5. Identification of Occurrence: Fish kill on intake screens exceeding 3000 pounds based on 24-hour. sample period.

6. Conditions Prior to Occurrence:

Steady-State Power X Reactor Power ~2500 MWth Ilot Standby _

Net. Output 830 MWe Cold Shutdown Percent of Full Power 98  %

Refueling Shutdown Routine Startup Operation Routine Shutdown '

Operation Load Changes During Routine Power Operation '

Other (Specify) Four circulating water pumps were in operation.

7. Description of Occurrence: -

, During routine fish impingement ponitoring 1/17/75 using procedure 1607.10, Monitoring Fish Impinged on ANO-1 Intake Screens, 6790 pounds of fish were collected during a 24-hour sample period beginning at 8:00 A.M. 1/16/75 and ending at 8:00 a.m. 1/17/75. A mixture of gizzard and threadfin shad made up 99.9% of the total weight of fish. Other fish made up 0.1% of the total weight. Threadfin shad made up 96% of the total number of shad. The intake water temperature at 8:00 a.m. 1/17/75 was 42*F and the ambient air temperature was 33*F. l (/

1 s J

{w

< 'd l J

July 5, 1974 NSP-10, Rev. O Page 1 of 3

i

- Non-Routine, No -Radiological Environmental Report No.- 50-313/75-3

8. Designation of Apparent Cruse of Occurrence:

Design Procedure Manufacture Unusual Service Condition Including Installation / Environmental Construction Component Failure Operator Other (Specify) X-The apparent cause was due to a natural die off of threadfin shad during the winter season,.

9. . Analysis of Occurrence:

The only noticeable Environmental Impact was the removal of the above mentioned fish from the lake, The fish that were collected were dis-posed of through land fill operation. The fish that were not collected were disposed of through the trash disposal system.

s

10. Corrective Action: ,

Long term studies are in progress to determine the effects of plant operation of the aquatic ecosystems of the Dardanelle Reservoir. Data from this report and other data obtained is fed back into these studies to determine what changes might be made to the~ studies in order to ensure- that adequate data is obtained for evaluating plant impact.

Review *by Arkansas Power G Light Company and its consultants of the results of these studies will determine what corrective action might be taken to reduce plant effects on the' Reservoir.

i 1

~

j l

July 5, 1974 NSP-lb, Rev. O 1

~

Page 2 of 3 '

s

~ ~ 7

Non-Routine, Non-Radiological Environmental Report No. 50-313/75-3

11. Failure Data:

The circumstances of this report are similar to those reported in Non-Routine, Non-Radiological Environmental Report No. 50-313/74-1 through 50-313/74-11 and 50-313/75-1 and 50-313/75-2.

12. Reviews and Approvals:

Reviewed and Approved by: Plant Safety Committee Yes (X) No ( )

Plant Superintendent Yes (X ) No ( )

Reference:

JWA-803 Date: 1/20/75 Reviewed by: J ). Date: /- 2 J.- 75 Licensing Supervisor Approved by:_ .eff////gc' /&e,-[ f Date: /- P.S /T ~

/ Safet ~ Review Co .it ce

• Approved by: 2 - 1

)~ r

. ' r*% Datc: / g3 7J nager of Nuclear Services ( } /

Approved by* ///[,/g /m /' Date: /M5'I Director of Power Production Approved by:

Date: /~AfI Senior Vice President l

July 5, 1974 NSP-10, Rev. O Page 3 of 3 y

l

r~-~

_ AEC Dif,T HIL .lON FOR PART 50 DOCKET MATER .

(TEMPOR ARY FORM) 843 CONTROL NO:

FILE: -

FROM: Arkansas Power & Light DATE OF DOC DATE REC'D LTR TWX RPT OTHER Little Rock, Ark 72203 A.P. Pettit 1-23-75 1-25-75 X ORIG CC OTHER SENT AEC PDR m E.g. Case 1 signed

• SENT LOCAL PDR CLASS UNCLASS PROPINFO INPUT NO CYS REC'D DOCKET NO:

XXX 40 50-313 DESCR: llON ENCLOSURES:

Ltr tre..s the following..... notarized 1-23-75

...... Environnental Abnormal Occurrence No. 50-313/

75-3.....concerning fish inningement in excess 6f the environ tech specs.....

(40 cys enc 1 rec'd)

PLANT NAME: Arkansas Nuclear One - #1 FOR ACTION /INFORMATION 1-27-75 JB BUTLER (L) SCHWENCER (L)#ZlEMANN (L) REGAN (E)

W/ Copies W/ Copies W// Copies W/ Copies CLARK (L) STOLZ (L) DICKER (E) LEAR (L)

W/ Copies W/ Copies W/ Copies W/ Copies PARR (L) VASSALLO IL) KNIGHTON (E) SPELS W/ Copies W/ Copies W/ Copies W/ Copies .

KNIEL (L) PURPLE (L) /'YOUNGBLOOD (E) .

W/ Copies W/ Copies W/JCopies W/ Copies INTERNAL DISTRIBUTION 6EG Fi13) TECH REVIEW /DENTON LIC ASST A/T IND YAtGFDR #'SCHROEDER GRIMES R. DIGGS (L) BRAITMAN OGC, ROOM P-506A MACCARY GAMMILL H. GEARIN (L) SALTZMAN VMUNTZlNG/ STAFF KNIGHT KASTNER E. GOULBOURNE (L) ABEL CASE PAWLICKl .rBALLARD GIAMBUSSO P. KREUTZER (E)

SHAO SPANG LER J. LEE (L) PLANS i

BOYD STELLO M. MAIGRET (L) MCDONALD MOORE (L) HOUSTON ENVIRO S. REED (E) CHAPMAN DEYOUNG (L) NOVAK v' MU LLER M. SERVICE (L) DUBE (Ltr)

SKOVHOLT (L) ROSS DICKER S. SHEPPARD (L) E. COUPE

/GOLLER (L) (Ltr) IPPOLITO KNIGHTON M. SLATER (E) PETERSON P. CO L LINS TEDESCO YOUNGBLOOD H. SMITH (L)

DENISE D. THOMPSON (7)

LONG REGAN S. TEETS (L) KLECKER p41EG OPR LAINAS / PROJECT LDR G. WILLI AMS (E) EISENHUT FILE & REGION (2 BENAROYA /W/ws//a (2) w'V. WILSON (L) WIGGINTON MORRIS VOLLMER HAR LESS STEELE yyYfm EXTERNAL DISTRIBUTION fa ff_

1. 1 - LOCAL PDRdfJe//p///s./ 8#* N.

1. 1 -TIC (ABERNATHY)/(1k'0;.':0l - NATIONAL LABS dAA/4- )

1 - PD R-SAN /LA/NY

/1 - NSlC (BUCHANAN) v1 - W. PENNINGTON, Rm E-201 GT 1 - BROOKHAVEN NAT LAB 1 - ASLB 1 - CONSULTANTS 1 - G. U LRIKSON, ORN L 1 - Newton Anderson NEWMARK/BLUME/AGBABIAN 1 - ACRS HOLDING /SENT 1 - AGMED (RUTH GUSSMAN)

Hm B-127 GT 1 - R. D. MUELLER, Rm E-201 GT j