ML20086A008
| ML20086A008 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 11/04/1991 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20086A010 | List: |
| References | |
| NUDOCS 9111180172 | |
| Download: ML20086A008 (4) | |
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7590 UNITED STATES NUCLEAR REGULATORY COMMISSION GPU NUCLEAR,, COP,Ppp,AJJON AND JERSEY CENTRAL POWER & LIGHT COMPANY OyS,TER CRE,EK,!:,U,CLE,AR GENERATING STATION 00CKETNO.,50-fJ9
.E!!yJp0!EE!4TAL,3,SSE MENT AND FINDING OF,!40, SJG!IJFJCAN,T,JMPACT The U. S. Nuclear Regulatory Commission (the Commission) is considering issuance of an exemption from the requirements of Section III.G of Appendix R to 10 CFR Part 50 to GPU Nuclear Corporation, et al. (the licensee) for the Oyster Creek Nuclear Generating Station, located at the licensee's site in Ocean County, New Jersey. ENVIRONPENTAL' ASSESSMENT Identification of Proposed Action: The-licensee is requesting an exemption from the requirements of Section III.G of 10 CFR Part 50, Appendix R "F' ire Protection of-Safe Shutdown Capability." Specifically, the licensee requested an exemption from Section III.G.S c. The licensee requested not to provide a one hour rated fire barrier for the power cable associated with the IC-B condensate return valve V-14-37 located in the fire area RB-FZ-1D on elevation 51'-3" in the reactor building. The licensee's request and bases'for exemption are contained in a letter dated May 17, 1991. '.T,hp,, Nee,d,,fp,r,,the, P,roposed Action: The exemption is needed because strict compliance with the regulation would require further modification to preside a one hour fire barrier for a portion of the. cable in the southeast corner of the reactor building at 9111180172 911104 PDR ADOCK 05000219 p-PDR F
. ~. . elevation 51'-3". This would result in undue hardship and additional costs would not be justified by the insignificant increase in safety. Environmental Imp,a,c,t,s,pf,,the Proposed Action: The Commission has completed its evaluation of the proposed exemption from the requirement of Section 111.G.P.c of Appendix R to 10 CFR Part 50 to not provide a one hour rated fire barrier for the power cable associated with IC-B condensate return valve V-14-37 located in the fire area RB-FZ-10 on elevation 51'-3" in thc reactor building. Based on its review of the information presented, the Commission finds that a single _ fire in fire zone RB-FZ-10 is not likely to cause valve V-14-37 to close and cause loss of ability to reopen the valve because of: (1) low combustible fuel loading in the zone, (2) automatic and manual fire suppression and automatic fire detection capability in the fire zone, (3) necessity to damage the Isolation Condenser B (IC-B) high flow logic circuit and then power cable 12GP0816 ir, that sequence, and (a) location of the IC-B high flow logic circuit and power cable 12GP0816 in diagonal corners of fire zone RB-FZ-10, separated from each other by approximately 92 feet and by the drywell structure and various non-fire rated compartment walls. On this basis, we conclude that the combination of soecific damage and sequence of events is so remote that a fire would not have any effect on the plant's ability to achieve safe shutdown. Therefore, the proposed exemption does not increase the probability or consequences of accidents, no changes are being made in the types of effluents that may be released offsite, and there is no significant increase in the allowable individual or cumulative occupational exposure. Accordingly,-the Commission concludes that this proposed exemption would result in no significant cadiological environmental impact.
o 3 With regard to nonradiological impacts, the proposed exemption from the requirements of Section Ill.G of Appendix R to 10 CFR Part 50 involves components which are located within the restricted area as defined in 10 CFR Part 50. It does not affect nonradiological plant effluents and has no other environmental impact. Therefore, the Commission concludes that there are no significant nonrediological environmental impacts associated with the proposed exemption. Al t erna t ive,s,,to,,t,he, P,rppp sed, A,c,tjpn; It has becn concluded that there is no measurable impact associated with the proposed exemption; any alternatives to the exemption will have either no environmental impact or greater environmental impact. Alternative use of Resources: This action does not involve the use of any resources beyond the scope of resources used during normal plant operation. A g e n c i e s a n d,,P e,r sp n s,,C o n,s u,1 t e,d1 2 The Comission's staff reviewed the licensee's request that supports the proposed exemption. The staff did not consult other agencies or persons. FINDING 0F_N,0_SJGNIFJCANT1[iPACI Based upon the foregoing ensironmental assessment, the Commission concluded that the proposed action will not beve a significant effect on the quality of the human environment. Accordingly, the Commission has determined not to prepare an environmental impact statement for the proposed exemption. For further details with respect to this action, see the request for exemption dated May 17, 1991. Copies of the request for exemption are
. available for public inspection at the Commission's Public Document Room, 2120 L Street, NW., Washington, DC 20555 and at the Local Public Document Room located at the Ocean County Library, Reference Department,101 Washington Street, Toms River, New Jersey 08753. Dated at Rockville, Mar; land, this 4th day of November 1991. FOR THE NUCLEAR REGULATORY COMMISSION Jo h F. Stolz, Director P oject Directorate I-ivision of Reactor Projects - 1/II Office of Nuclear Reactor Regulation o}}