ML19253A206

Requests Submittal of Proposed Amend to License to Delete Tech Specs Re Secondary Water Chemistry Monitoring Program & to Incorporate Requirements of Encl Model License Condition. Requests Submittal within 60 Days

ML19253A206
Person / Time
Site:	Fort Calhoun
Issue date:	07/23/1979
From:	Reid R Office of Nuclear Reactor Regulation
To:	Short T OMAHA PUBLIC POWER DISTRICT
References
NUDOCS 7908200105
Download: ML19253A206 (4)

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UNITED STATES j'))i,,

g NUCLEAR REGULATORY COMMISSION

.4 WASHINGTON. D. C. 20555 N.s ]p Occket No.

50-286 JULY 23373 Mr, Theodore E. Short Assistant Gcneral Managa Omaha Public Power District 1623 Harney Street Omaha, Nebraska 68102

Dear Mr. Short:

RE: FORT CALh0UM STATION, UNIT NO.1 In August 1976 we sent letters to the mejority of licensees who operate Pressurized Water Reactors (PWRs) regarding the control of secundan water chemistry to inhibit corrosion of steam generator tubes. The letters requested the licensees to propose Technical Specification changes to incorporate limiting conditions for operation ano surveillance requirements for secondary water chemistry parameters. Model Technical Specifications, which reflected the requirecents contained in the Comission's Standard Technical Specifications (STS), were inclucea for suicance.

Many licensees objected to the Model Technical Specifications principal.ly on the basis that tney could unnecessarily restrict plant operation. The majority of these licensees submitted alternative approacher tnat were oirected more toward monitoring and recora keeping ratner than specific limi ts on chemiitry parameters. At the time of our request, we recognizea that a major disadvantage of the Technical Specifications was a potential decrease in operational flexibility, but our request was motivated by an overricing con:ern for steam generator tube integrity. Our objective was to provice adced assurance that licensees would properly monitor and control secondary water chemistn to limit corrosion of steam generator tubes.

tiowever, based on the experience and knowledge gained since 1976, we have now concluceo tnat Technical Specification limits would not ce the most effective way of acconplishing this objective. Due to the conplexity of tne corrosion pnenomena involved, and the state-of-the-art as it exists today, we belis ve that a more effective approach woulu be to institute a license condition that requires the inplementation of a secondan watar chemistry monitoring and control program containing appropriate proceoures and administrative controls. A Model License Condition that is acceptable to the staff for this purpose is enclosed.

The required program and procecures wcula be developec cy the licensees, with any needed input from their reactor vendors or other consultants, and thus could more readily account for site ano plant specific factors o

that affect chemistry conditions in tne steaia generators.

I n cu r vi ew,

sucn a license concition would provice assurance taat licensees wculu 801 283 7 9082 00/g, g

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Omaha Public Power District devote proper attention to controlling secondary water cheiaistry, l

while also providing the neeoed flexibility to allow them to corr effectively deal with any off-normal conditions that mignt arise.

Moreover, we have concluded that such a license conuition, in conjunction with existing Technical Specifications on steam generator tube leakage ano inservice inspection, would provice the most practical i

ano conprehensive means of assuring that steam generat,or tube integrity is maintained.

Consequently, we request that you submit a proposed amendment to your license to incorporate the requirements of the enclosed hodel License Condition into the boqy of your license within 60 days.

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If you previously sustit'.;4 an application for a license amencment concerning steam generator monitoring requiremnts prior to March 22, 1973, you aeed not remit a fee for the license amendment requestea by this letter.

If you have not submittec a license amendment request prior to March 22, 1976, you should remit a Class III fee witn your application.

If you have any questions, please contact u.,

No further action will be taken on any proposed Technical Specification changes you may have submittec in response to our August 1976 reques..

Such change requests will be considered withcrawn unless you express objections within 60 days.

Sincerely, i

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n Robert W. Reid, Cnief Operating Reactors Branch 44 Division of Operating Reactors

Enclosure:

Model License Condition cc w ' enclosure:

See tiext page

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Omaha Public Power District cc:

flarg; et R. A. Paradis LeBoeuf, Lamo, Leiby a flacRae 1757 N Street, N.W.

Washington, D. C.

20036 Blair Public Library 1665 Lincoln Street Blair, Nebraska 68008 t

801 285

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ENCLOSURE l

MOCEL LICENSE CONDITION SECCNDARY WATER CHE.'1ISTRY MONITORING A

The licensee shall implement a secor.dary water chemistry monitoring i

program to inhibit steam generator tube degradation. This program shall include:

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Identification of a sampling schedule for the cricical parameters and control points for these parameters; a

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Identification of the procedures used to quantify parameters that are critical to control points; l

3.

Identification of process sampling points; 4.

Procedure for the recording and management of data; 5.

Procedures defining corrective actions fer off control point chemistry conditions; and 6.

A procedure identifying the authority resconsible for the inter-pretation of the data, and the sequence and timing of administrative events required to initiate corrective action.

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