ML20024G636
| ML20024G636 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 12/19/1973 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | Mayer L NORTHERN STATES POWER CO. |
| References | |
| NUDOCS 9102130545 | |
| Download: ML20024G636 (2) | |
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UNITED STATES a.
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IT ATOMIC ENERGY COMMISSION
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December 19, 1973 Dxket N. 50-263 i
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Northem States Power Cocpany ATfN: It. L. O.1*hyer, Director of 1
Nuclear Support Services 414 Nicollet Avenue Mtnneapolis, Mirnesota 55401 Gentleren:
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'Ibe Begulatory staff is presently zeviewing Om dynamic effect on the torus stru:tum of relief valve blowdowns into the torus water as presente. in General Electric Cocpany (GECo) Report NEDD-10859, " Steam Vent Cleaning Phenonena and Structumi Response of the NR 'Ibrus",
dated April 1973 and Errata and Addenda Sheet dated Ihy 21, 1973
'Ihe data pmsented in this report are based on tests perforned by GECo at Quad-Cities Unit 2.
As the result of our review of the above reportsue find the following 1
infomation relating to your facility is neechd to supplenent the infomation in the E Ivport:
1.
A sumary of the ntmber of each relief valve operation, how initiated (nanually or automatically), and when the opemtions occurred, such as during starttp testing, other testing or nortal operation. The auxary of these operaticris should be ceparated into six-nonth periods from the initiation of facility startup tests to the present tine. 'Ihis infomation is requested within 30 days of the date of this letter. Future relief valve operutions should be reported in the facility send.-anntal operating reports in the canner requested above.
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2.
A pmposed technical specification for Limiting Condition of Operating (LCO) and Surveillance Ibquimnents of the torus structure.
Your proposal should include inspection mquirements and frequencies for surface coatirgs, structurbi cbforention and nnterial corrosion. Include with your pmposed techn cal specifications the bases for the If0 and Surveillance Pcquirerents.
It is requested that you submit these proposed technical specif1-cations within 60 days of the date of this letter.
3 Om original and thirty-nine copies of your submittal arv requ d.
Sincerely, J!A4l S d!
Dennis L. Ziemann, Chief Opemting Reactors Bmnch #2 Dhectomte of Licensing cc:
Donald E. !Jelson, Esquim Warren R. Inwson, M. D.
VP and GC Secretary & Executive Officer Northern States Power Corpany State D3partrent of Health 414 Rico11et Avenue 717 Iblaware Strnet, S. E.
Idnneapolis, Minnesota 55401 Minneapolis, Minnesota 55440 Gemld Charnoff Envuonnental Libmry of Minnesota Shaw, Pittnan, Potts, Trowbridge 1222 S. E. 4th Street and !bdden Minneapolis, Minnesota 55414 910 - 17th Street, N. W.
Washington, D. C.
20006 Sandra S. Gardebring Special Assistant flowarxi J. Vogel, Esquire Attorney Geneml Knittle & Vogel 1935 W. County Rod 82 814 Flour Exchange Building Roseville, Minnesota 55113 Minneapolis, Minnesota 55415 Steve Gadler, P. E.
s 2120 Carter Avenue St. Paul, Minnesota 55108 Ihrriett Lansing, Esquire Assistant City Attorney City of St. Paul 63B City th11 St. Paul, Minnesota 55102 Men D:ubv Minnesota Pollution Control Agency 717 D31 aware Street, S. E.
Idreeapolis, Minnesota 55440
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