ML19320A197

Requests Waiver of Tech Specs 3.14 & 4.12 Requirement Re Charcoal Filters.Reply Needed Prior to 760611 Due to Planned Startup Date

ML19320A197
Person / Time
Site:	Arkansas Nuclear
Issue date:	06/04/1976
From:	Cavanaugh W ARKANSAS POWER & LIGHT CO.
To:	Ziemann D Office of Nuclear Reactor Regulation
References
NUDOCS 8004210503
Download: ML19320A197 (3)

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H E L o rtu G a3 U I L O AM<AN?AS ARK ANS AS POWER & LIGHT COMPANY STM t. LouiSI AN A ST A..TS LITTL. ACCK. A AK ANS AS 72203.(5011372-4311 June 4, 1976

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Director of Nuclear Reactor Regulation

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Mr. D. L. Ziemann, Chief Operating Reactor Branch #2

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'O U. S. Nrclecr Regulatory Commission I', / '.j /

f Washington, D. C.

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Subj ect: Arkansas Power S Light Company 7, [ /

Arkansas Nuclear One-Unit 1 Docket No. 50-313 License No. DPR-51 Request for Waiver of Technical Specification Requirement Gentlemen:

Arkansas Nuclear One-Unit 1 Technical Specifications 3.14.1.b and 4.12.2.a as issued in Amendment No.10 to our operating license require a laboratory carbon sample analysis of the charcoal filters in the hydrogen purge system.

The criteria for this analysis require that the filter shows >90*6 radio-active methyl iodide removal at a velocity within 20% of system design, 0.15 to 0.5 mg/m3 inlet methyl iodide concentration >70% R.H.,

and >19;c.

It has been found that the perfomance of this analysis, due to the filter design, would cost more than a replacement filter which was tested by the manufacturer.

However, we have in stock replacement filters which were tested to different criteria than are specified in the Technical Specifications.

These replace-ment filters were tested to show >99% methyl iodine -131 removal at rated flow, 50 mg/m3 inlet non-radioactive methyl iodide concentration, 70'. R.H.,

and 150F. We plan to use these replacement filters and, due to the long lead time in purchasing other replace'ments, have installed two of these replacement filters in the hydrogen purge system during our present outage.

We feel that the difference in the requirements will not affect the perform-ance of the filter units and that their use will meet the intent of these specifications. All other requirements of Specifications 3.14 and 4.12 have been met.

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Mr. D. L. Ziemann Juno 4, 1976 Due to our planned startup date of June 11, 1976, we request your prompt review and concurrence with our position.

Please provide r reply before June 11,1976.

Very truly yours, f

William Cavdtraugh III Assistant Director Power Production WC:tw l

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