ML20010G145

Responds to IE Bulletin 81-03, Flow Blockage of Cooling Water to Safety Sys Components by Corbicula Sp (Asiatic Clam) & Mytilus Sp (Mussel). Circulating Water Intake Bays Will Be Manually Cleaned Yearly

ML20010G145
Person / Time
Site:	Wolf Creek
Issue date:	07/09/1981
From:	Koester G KANSAS GAS & ELECTRIC CO.
To:	Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
IEB-81-03, IEB-81-3, KMLNRC-81-096, KMLNRC-81-96, NUDOCS 8109150381
Download: ML20010G145 (3)

Text

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KANSAS GAS AND ELECTRIC COMPANY Te1; E_E CTRC COMPANY GLENN L MOESTEft W K E P4 E S'DE N T mvCLEam July , 1981 Mr. Karl V. Seyfrit, Director Office o# Inspection and Enforcement U.S. Nuclear Regulatory Commission #1,,,,',

• Region IV

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611 Ryan Plaza Drive, Suite 1000 - #g\ ,

Arlington, Texas 76011 l

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{%..,14B k( ULP KMLNRC 81-096 .

k Re: RIV Docket No. STN 50-482/IE Bulletin No. 81-03 \

f Re f: Letter of 4/10/81 from Office of Inspection and Enforcement, NRC to KG&E

Dear Mr. Seyfrit:

The referenced letter required action from Kansas Gas and Electric Company in regard to IE Bulletin 81-03.

The subject of IE Bulletin 81-03 concerned flow blockage of cooling water to safety syster, components by Corbicula sp. (asiatic clam) and Mytilus sp.

(mussel) , and *.equested certain actions by Licensees and Permit Holders.

The following information is provided in response to your letter. The items below are nunbered to match the Bulletin action items.

1) Requires Construction Permit Holders to respond to Items 1) and

4) for OL's:

1) In the State of Kansas, Corbicula has been collected at only two locations. The first collection was in a cove on Wilson Reservoir in 1980. Wilson is located in north-central Kansas, and is built on the Saline River, a tributary of the Kansas Rive r. The ether collection was on the Kansas River near Bonner Springs in early 1981. This collection yielded only

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two juvenile Corbicula specimens. The State Biological Survey I was responsible for both Corbicula collections.

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The ecological monitoring around the Wolf Creek Generating Station has not revealed Corbicula to be present in the Neosho River between John Redmond Reservoir and Leroy, or in Wolf Creek. The monitoring has been conducted since 1973 and will continue at least two years past the initiation of plant operation.

81 810709 C; hK05000482 PDR 201 N. Market - Wichita, Kansas - Mail Address: RO. Box 208 i Wichita, K.msas 67201 - Telephor'e: Area Code (316) 261-6451

Mr. Karl V. SOyfrit KMLNRC 81-096 July 9, 1981 The possibility of Corbicula spreading throughout the State was discussed with Don Huggins, aquatic biologist for the State Biological Survey. He wcs certain that in time Corbicula would become established in the major river drainages of Kansas; however, the time involved would be variable, depending upon the conditions.

Mytilus sp. is a marine mussel and thus would not occur in the fresh water of Wolf Creek Cooling Lake.

4) The monitoring program, as stated in 1) above, will continue at least two years past the initiation of plant operation.

When Corbicula have been detected in the source water, a decision will be made as to what measures will be used for preventing and detecting flow blockage due to their presence.

.%e areas of nost concern are piping with diameters less than 1.5 inches, which include containment cooler tubes, turbine oil coolers, radiation detection monitor piping, drain and relief valves.

The measures that will be considered include:

a) Monitoring flow tnrough coolers once per month to check for decreasing flow over a period of time; b) Pumping 1700 F water through the piping for about half an hour; c) Manually cleaning the service water side of coolers at least once per year; d) Chlorination of water for those systems which have temperature limits on water to be pumped through them; and e) Manually cleaning the circulating water intake bays once per year due to Corbicula attraction to probable silt accumulation there.

2) This item is not applicable.

3) See response to 1) above.

Yours very truly, GLK:bb Y

cc: Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D.C. 20'55 Wandel, Resident NRC Inspector

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1. 9 ' ' e s

a OATH OF AFFIRMATION STATE'0F KANSAS )

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COUNTY OF SEDGWICK )

I, Glenn L. Koester, of lawf t.1 age, being duly sworn upon oath, do depose, state and affirm that I am Vice President - Nuclear of Kansas Gas and Electric Company, Wichita, Kansas, that I have signed the foregoing letter

( of transmittal, know the contents thereof, and that all statements contained therein are true.

FSMSAS GAS AND ELECTRIC COMPANY

, ATTEST: ;j <

i By jgf,y) A ~

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. Glenn L. Koester

[r 'l Vice President - Nuclear W.B. Walker, Secretary i

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STATE OF KANSAS )

) SS

COUNTY OF SEDGWICK )

i BE IT REMEMBERED that on this 9th day of July, 1981 , before me, Evelyn L. Fry, a Notary, personally appeared Glenn L. Koester, Vice l

President - Nuclear of Kansas Gas and Electric Company, Wichita, Kansas, who is personally known to me and who executed the foregoing instrument, and he duly acknowledged the execution of the same for and on behalf of and as the act and deed of said corporation.

l IN WITNESS WHEREOF, I have hereunto seti my hand and affixed my seal the

,,,,,Qate and year above written.

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,  ! 't,GTA,7/ ,i 4 #1 l { e,. l fvelyr)/L. Fry, No ry 1 2 we .

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M 15, 1981.

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• . . r. ,~ y,.<cpimi ssion expires on August l

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