ML19260C323

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Forwards Safety Evaluation Re 780711 & 791106 Proposed Mods to Chemical Vol Control Sys & Vibration Dampener Sys
ML19260C323
Person / Time
Site: Fort Calhoun Omaha Public Power District icon.png
Issue date: 12/04/1979
From: Reid R
Office of Nuclear Reactor Regulation
To: William Jones
OMAHA PUBLIC POWER DISTRICT
Shared Package
ML19260C324 List:
References
NUDOCS 7912260207
Download: ML19260C323 (2)


Text

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{pn arouq[c, UNITED STATES

,,e ' 3,, ( (,g NUCLEAR REGULATORY COMMISSION fj y WASHINGTON, D. C. 20555 December 4, 1979 Docket No. 50-285 Mr. W. C. Jones Division Manager, Production Operations Omaha Public Power District 1623 Harney Street Omaha, Nebraska 68102

Dear Mr. Jones:

By letter dated May 17, 1978, we requested information on dampeners for the positive displacement pumps at Fort Calhoun. We also requested an analysis of pump induced vibrations and any proposed modifications to the Chemical Volume Control System (CVCS) to reduce such vibrations.

By letters dated July 11, 1978, and November 6, 1979, you provided your analysis of the Fort Calhoun CVCS and proposed modifications to the vibration dampener system.

We have now completed our evaluation (enclosure) and have determined that your proposed modifications are acceptable.

Sincerely, Robert W. Reid, Chief Operating Reactors Branch #4 Division of Operating Reactors

Enclosure:

Proposed Modifications to CVCS cc: w/ enclosure See next page 1616 356

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7912260 20l

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Omaha Public Power District cc w/ enclosure (s):

Margaret R. A. Paradis LeBoeuf, Lar';, Leiby & MacRae 1333 New Ha'.ipshire Avenue, N.W.

Washingtcii D. C.

20036 Blair Public Library 1665. Lincoln Street Blair, Nebraska 68008 1616 357 B

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