ML20237C678

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Special Rept:On 871118,internal Portion of Fire Suppression Water Sys Removed from Svc to Replace Section of Piping.On 871120,piping Successfully Hydrostatically Tested & Fire Suppression Sys Returned to Svc
ML20237C678
Person / Time
Site: La Crosse File:Dairyland Power Cooperative icon.png
Issue date: 11/30/1987
From: Taylor J
DAIRYLAND POWER COOPERATIVE
To: Davis A
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
LAC-12451, NUDOCS 8712220069
Download: ML20237C678 (2)


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'D DA/RYLAND hhh[~COOPERAT/VE PO DOX817

  • 2615 EAST AVE SO . LACROSSE, WISCONS (608) 788 4000 JAMES W. TAYLOR

' Gsneral Manager -

November 30, 1987 (RJop)yy j pg In reply, please L!Z refer to LAC-12451  ;.. 3 w: .~

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DOCKET NO. 50-409 g l Mr. A. Bert Davis, Regional Administrator U. S. Nuclear Regulatory Commission Directorate of Regulatory Operations Region'III

'799 Roosevelt Road Glen Ellyn, IL 60137 l

Dear Mr. Davis:

SUBJECT:

Dairyland Power Cooperative La Crosse Boiling Water Reactor (LACBWR)

Provisional Operating License No. DPR-45 Special Report

REFERENCES:

(1) LACBWR Technical Specifications, Section 4.2.18.1 (2) 'LACBWR Technical Specifications, Section 6.9.2-(3) DPC Letter, Taylor to Davis, LAC-12439, November 18, 1987.

In accordance with References 1 and 2, this letter serves as the follow-up to the Special Report submitted in Reference 3.

The internal portion of the fire suppression water system was removed from service at 0630 on November 18, 1987 in order to replace a section of piping. The two diesel-driven High Pressure Service Water Pumps control switches were turned off. The procedure controlling the internal fire suppression system removal from service states the pumps should be started if a fire occurs. Hoses were laid from the yard hydrants to areas inside the plant to provide backup fire suppression capability prior to removing the internal portion of the system from service.

A tee with an approximately 8 foot section of HPSW piping was replaced.

The piping'was successfully hydrostatically tested on November 20, 1987. The fire suppression system was returned to service at 1525 on November 20, 1987.

The plant has been permanently shut down and the reactor defueled.

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'8712220d69 871130 -

PDR ADOCK 05000409 i Ss DCD 4, t j

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-) e Mr. A. Bert Davis LAC-12451

  • Page 2 .-

November 30, 1987 If there are any questions, please contact us, Sincerely, DAIRYLAND POWER COOPERATIVE

,E James W. Taylor General Manager JWT:LSG:sks cc: Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 'z0555 Mr. Peter B. Erickson, LACBWR Project Manager Division of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mr. Ken Ridgway, NRC Resident Inspector I

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I PCl-39

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