ML20154C243
| ML20154C243 | |
| Person / Time | |
|---|---|
| Issue date: | 04/28/1988 |
| From: | Zech L NRC COMMISSION (OCM) |
| To: | Breaux J SENATE, ENVIRONMENT & PUBLIC WORKS |
| References | |
| CCS, NUDOCS 8805180086 | |
| Download: ML20154C243 (6) | |
Text
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[o, UNITED STATES Og A 3,
NUCLEAR REGULATORY COMMISSION g
a WA5HINGTON, D. C. 20555
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April 28, 1988 CHAIRMAN The Honorable John Breaux, Chairman Subcomittee on Nuclear Regulation Committee on Environment and Public Works United States Senate Washington, D. C.
20510
Dear Mr. Chairman:
In my February 24, 1988 response to question 13 of your January 27, 1988 letter, I premised to provide addition 61 information on NRC's fire l
protection requirements. This information is enclosed.
Sincerely, h
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sw v.
Lando W. Zech r.
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As Stated cc: The Honarable Alan Simpson 8805180086 000428 COMMS NRCC PDR CORRESPONDENCE PDR
i QUESTION 13.
On April 14, 1986, the NRC issued Generic Letter 86-10 l
implementing the new Appendix R interpretations.
l (A) How many exemptions have been requested oy utilities since NRC issued GL 86-10?
ANSWER.
The answer to Questions 13A, B, and C are presented in terms of exemptions and deviations.
The fire protection criteria delineated in Appendix R to 10 CFR Part 50 are applicable as regulation only to those nuclear power plants
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licensed to operate prior to January 1, 1979.
Variances from these criteria are required to be approved under the exemption process specified in 10 CFR 50.12.
For the remaining power plants licensec since that date, utilities demonstrated compliance with NRC fire protection requirements by comparing their fire protection programs to the criteria of Appandix R as well as those contained within Branch Technical Position 9.5-1, applied as guidelines, and identified and justified variances as deviations.
It should be noted that since the fire protection criteria contained in the Branch Technical Position are more extensive than those in Appendix R, no significance should be applied to the total numbers of deviations relative to the total number of exemptions.
Utilities have requested 148 exemptions and 195 deviations since NRC issued GL 86-10 on April 24, 1986.
The status and rature of these exemptions and
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i QUESTION 13A.
(Continued).
E deviations are summarized in (C) below.
It should be noted that there are differences from plant to plant in the design and layout of components and cabling which result in the variances which were the subject of the exemptions'and deviations. Where exemptions and deviations were granted, the staff concluded that a level of safety equivalent to that intended by the fire protection requirements was achieved.
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l OUESTION 13.
(Continued) (B) Which utilities filed for exemptions?
i ANSWER.
l The utilities that filed for exenptions and deviations and the plants for which they filed are:
Exemption (E)/
Utility Plant Deviation (D)
Arkansas Power and tight Arkansas 1/2 E
i Arizona Public Service Palo Verde 1/2/3 D
Boston Edison Pilgrim E
Carolina Power and Light Brunswick 1/2 E
S. Harris D
Central Power and Light South Texas 1/2 D
Cumnonwealth Edison Braidwood 1/2 D
Byron 2 D
Dresden 2/3 E
Quad Cities 1/2 E
Zion 1/2 E
Consumers Power Big Rock Point E
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l Florida Power and Light Turkey Point 3/4 E
1 Hatch 1/2 E
Georgia Power i
Indiana and Michigan Electric D.C. Cook 1/2 E
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QUESTION 138.
(Continued) ANSWER.
(Continued)
Exemption (E)/
Plant Deviation (D)
Utility Iowa Elect. ic Light and Power Duane Arnold E
Jersey Central Power and L49ht Oyster Creek E
Metropolitan Edison Company Three Mile Island 1 E
Mississippi Power and Light Grand Gulf D
Niagara Mohawk Power Corp.
Nine Mile Point 2 D
Northeast Nuclear Energy Millstone 1/2 E
Pennsylvania Power and Light Susquehanna 1/2 D
Public Service of Colorado Fort Saint vrain E
Public Service Electric and Gas Salem 1 E
Salem 2 D
Southern California Edison San Onofre 1 E
San Onofre 2/3 D
Wisconsin Electric Power Point Beach 1/2 E
Wisconsin Public Service Kewaunee E
t QUESTION 13.
(Continued) l (C) What is the currerit status of those exemption requests?
4 ANSWER.
i As of March 1988, 94 exemptions and 118 deviations have been granted; 4 exemptions and 1 deviation have been denied; and 50 exemptions and 76 deviations are under review.
The scope of the exemptions and deviations granted included the presence of intervening combustible materials between redundant shutdown divisions; the lack of a fire supression system in an area where redundant shutdown divisions are located; and the presence of fire barriers which have a fire rating of j
less than three hcurs, as required by Appendix R.
In granting exemptions and deviations, the staff concluded that a level of safety equivalent to that 3
intended by the fire protection requirements was achieved.
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