ML19327B615
| ML19327B615 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 10/24/1989 |
| From: | Hairston W GEORGIA POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-89-16, HL-782, NUDOCS 8911020278 | |
| Download: ML19327B615 (2) | |
Text
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l Geova Power Company -
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333 Paedmore Aenue' Ananta. Googa 30300 Tetophone 404 626 3195 l
Mading Address 40 inverness Center Parkway 1
Post Office Box 1295 l
B.trningham Alabama 35201
.i Telephone 205 868 5501 4
r Inc.% wen ewnc systern W, G. Hairston.111 Senior %ce President l
Nuclear Operat;ons HL-782 0334V I
october 24, 1989 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Hashington, D.C.
20555-a PLANT HATCH - UNITS 1, 2 NRC DOCKETS 50-321, 50-366 OPERATING LICENSES.DPR-57, NPF,
' GENERIC LETTER 89-16 HARDENED VENT l
Gentlemen:
On September 1, 1989, the NRC staff issued Generic LL'etter 89-16 to inform the-owners of BHR plants with Mark I containments of the NRC program for disposition of. the issues related to the Mark I Containment Performance Improvement Program.
This letter encouraged.' licensees to voluntarily install a hardened vent under 10 CFR 50.59.
Our review of SECY 89-017 indicates that the ' primary. benefit of the hardened vent is the reduction of risk associated with the TN (long term loss of decay heat ~ removal) sequence.
It is the intention of Georgia
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Power Company to install a hardened vent to reducen the risk of the TH sequence at Plant E. I. Hatch, Units 1 and 2.
Georgia Power. Company will be working with the BHR Owners' Group to develop - generic general and specific design critoria.
It is anticipated that. the' design criteria will be available for NRC review by April 30, 1990.
Specific design-details will be available as Georgia Power Company completes the appropriate portions of the IPE for Plant Hatch and'. studies the l
possibility of systems' interaction effects-between the vent and the:
existing plant design.
The hardened ' vent will be. insta11ed' on: Unit 1 l
before startup from the end of. cycle.14 refueling outage and on Unit 2-i before startup from the end of cycle 10 refueling outage.
It is the belief of Georgia Power Company that; the risk.~of the'TH sequence is Ealready low.
The installation of 'the hardened vent: will further reduce risk of this sequence. and make a significant contribution'
'f to closing the NRC Mark.I Containment Performance Improvement Program.-
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891102027s s92oa4 r PNU g i ;' 9
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' beorgia Power b U.S. Nuclear Regulatory Comission october 24, 1989 Page Two If you hwe any questions in this regard, please contact this office.
Sincerely, td./b. $"m H. G. Hairston, III JKB/eb c: Georaia Power ComDany Mr. H. C. Nix, General Manager - Puclear Plant Mr. J. D. Heidt Manager Engineering and Licensing - Hatch GO-NORMS U.S. Nuclesr Reaulatory Comission. Washinaton. 0.C.
Mr. L. P Crocker, Licensing Project Manager - Hatch U.S. Nuclear Regulatory Comission. Region 11 Mr. S. D. Ebneter, Regional Administrator Mr. J. E. Henning, Senior Resident Inspector Hatch l
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