ML20205N670

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Requests Supplemental Response to 861031 Notice of Deviation within Two Wks,Describing Compensatory Measures to Be Implemented to Monitor & Control Biofouling of Svc Water Sys Until Effective Chlorination Program Established
ML20205N670
Person / Time
Site: Farley  Southern Nuclear icon.png
Issue date: 03/18/1987
From: Verrelli D
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To: Mcdonald R
ALABAMA POWER CO.
References
IEB-81-03, IEB-81-3, NUDOCS 8704030081
Download: ML20205N670 (2)


Text

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gb MAR 181987 Docket Nos. 50-348, 50-364 License Nos. NPF-2, NPF-8 AJabama Power Company MTTN: Mr. R. P. Mcdonald Senior Vice President P. O. Bor. 2641 Birmingham, AL 35291-0400 Gentlemen:

SUBJECT:

NRC INSPECTION REPORT NOS. 50-348/86-18 AND 50-364/86-18 Thank you for your response of November 26, 1986, to our Notice of Deviation issued on October 31, 1986, concerning activities conducted at your Farley <

facili ty. The importance of the service water system and the chlorination program to prevent biofouling of that system can not be neglected. Temporary interruptions of the chlorination program can result in biofouling. Continuous chlorination is one of the most effective methods of controlling biofouling in the service water system. Lack of emphasis on surveillance and preventive maintenance programs for the service water system and soase of the components cooled by service water combined with the low maintenance priority and unreliability of most chlorination systems are reasons biofouling has occurred at some plants, even though a chlorination program was in effect. The safety implications can be significant if biofouling causes the reliability of the service water system (or any of the safety-related components cooled by service water) to be reduced.

You have determined that the program described in your FSAR and in the response to IE Bulletin 81-03 are not effective and you are conducting an experimental program to determine an effective chlorination program. We are concerned that the present chlorination program at Farley Nuclear Plant may not be effective, as discussed in your response which was discussed by telephone on March 6, 1987 with D. Morey. Therefore, we request a supplemental response to the Notice of Deviation within two weeks describing the compensatory measures to be implemented to monitor and control biofouling of the service water system until an effective chlorination program is established.

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Alabama Power Company 2 We appreciate your cooperation in this matter.

Sincerely, IS David M. Verrelli, Chief Reactor Projects Branch 1 Division of Reactor Projects cc: ' [ 0. Whitt, Executive Vice President

[D.Woodard,GeneralManager-I.NuclearPlantG. Hairston, III, General Manager -

puclearSupport bV. W. McGowan, Manager-Safety Audit and Engineering Review gK. Osterholtz, Supervisor-Safety Audit and Engineering Review .

bcc:LNkC Resident Inspector tE/ Reeves, Project Manager, NRR Document Control Desk State of Alabama

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