ML19247B804
| ML19247B804 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 08/02/1979 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Cavanaugh W ARKANSAS POWER & LIGHT CO. |
| References | |
| NUDOCS 7908130536 | |
| Download: ML19247B804 (4) | |
Text
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h UNITED STATES 8 ) > n, 'h NUCLEAR REGULATORY COMMISSION
- .g * ' j WASHINGTON. D. C. 20555 3 TW AUG 2 1979 Docket No
SUBJECT:
SECONDARY WATER CHEMISTRY CONTROL - ARKANSAS NUCLEAR ONE, UNIT 2 In late 1975 we incorporated provisions into the Standard Technical Spec i f i-cations.(STS) that required limiting conditions for operation and surveillance requirenents for secondary water chemistry paremeters.
The Technical Spec i-fications for your plant (s), as well as all for other Pressurized Water Reactor plants that have been issued an Operating License since 1974, contain either these provisions, or a requirement to establish these provisions af ter base-line chcriistry conditions have been determined.
The intent. of the provisions was to prdvide added assurance that the operators of newly licensed plants would properly monitor and control secondary water chemistry to limit corrosion of steam generatcr tubes.
In a number of instances the Tecnnical Specifications have significantly restricted the operational flexibility of some plants with little or no benefit with regard to limiting corrosion of steam generator tubes. Based on this experience and the knowledge gained in recent years, we have conciuded that Technical Specification limits are not the most effective way of assuring that steam generator tube corrosion will be minimized.
Due to the complexity of the corrosion phenomena involved and the state-of-the-art as it exists today, we believe that, in lieu of Technical Specifications, a more effective approach would be to institute a license condition that requires the implementation of a secondary water chenistry monitoring and control program containing appropriate procedures and admin-istrative controls.
The required program and procedures would be developea by the licensee, with any needed input from their reactor vendors or other consultants, and thus could nore readily account for site and plant-specific f actors that affect chemistry conditions in the steam generators.
In cur view, plant cperation following such prccedures would provide assurance that licensees would devote proper attention to controlling secondary water cncr1istry, while also providing the needed flexibility to allow them to deal more effectively with any of f-normal conditions that might arise.
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7 90813 0 b5
Mr. William Cavanaugh, III AUG 2 1979 Consey ently, we request that you submit within 60 days a prcposed amendment to your license that will include your secondary water chemistry program which will be referenced in a condition to the license and that will replace your existing Technical Specifications on secondary water chemistry.
A model license condition is enclosed.
We have concluded that such a license condition, in conjunction with existing Technical Specifications on steam generator tube leakage and inservice inspection, would provide the most practical and comprehensive means of assuring that steam generator tube integrity would be maintained.
If you previously submitted an application for a license amendment concerning steam generator monitoring requirements prior to March 22, 1978, that has yet to be issued by the IRC, you need not remit a fee for the license amendment requested by this letter.
If you have not submitted a license amendment request prior to March 22, 1978, you should remit a Class III fee with your application.
If you have any questicns, please contact us.
Sincerely, f
f l
l (John)F. Stol z, Chief j
Light 'iater Peactors Branch No. I DivJsion of Project Management Enclosure :
Model License Condition cc w/ enclosure.
See next paSe c
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EtiCLOSURE MCDEL LICEf!5E CONDITION SEC0tiDARY h iER CHEMISTRY MONITORING The licensee shall implement a secondary water chemistry monitoring program in accordance with (reference Licensee's Procedure) to ir.hibit steam generator tube degradation.
This program includes:
1.
Identification of a sam 91ing schedule for the critical parameters and o,f control points for these parameters; 2.
Identification of the procedures used to measure the value of the critical parar.:eters ;
3.
Identification of process sampling points; 4.
Procedure for the recording and management of data; 5.
Procedures defining correcti /e actions for of f-control point chemistry conditions; and 6.
A procedure icentifying (1) the authority responsible for the interpretation of the data and (2) the sequence and timing of acministrative events required to initiate corrective action.
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Mr. Willian Cavanaugh, III pgg g g,g Mr. William Cavanaugh, I.II Executive Director of Generation & Construction Os Arkansas Power & Light Company
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P. O. Box 551 Little Rock, Arkansas 72203 cc:
Mr. David C. Trimble Manager, Licensing Arkansas Power & Light Company a--
P. O. Bcx 55i Little Rock, Arkansas 72203
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Philip K. Lyon, Esq.
House, Holmes ?. Jewell 1550 Tower Building Little Rock, Arkansas 72201 Mr. E. H. Smith, Project Engineer Bechtel Power Corporation San Francisco, Califarnia 94119 e
w Mr. Fred Sernatinger, Project Manager
[f' Combustion Er.gi neeri ng, I nc.
1000 Prospec'c Hill Road L
Windsor, Connecticut 06095 l
Mr. Charles B. Brinkman, Manager b-Washington Nuclear Operations C-E Power Systems Combustion Engineering, Inc.
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a853 Cordell Avenue, Suite A-1 Bethesda, Maryland 20014 L.
F.C Mr. James F. O'Hanlon (y
General Manager - Arkansas N.
Nuclear One f.
P, O. Box 608 Russellville, Arkansas 72801 c
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