ML13316A791
| ML13316A791 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 02/08/1985 |
| From: | Zwolinski J Office of Nuclear Reactor Regulation |
| To: | Baskin K Southern California Edison Co |
| Shared Package | |
| ML13316A793 | List: |
| References | |
| LSO5-85-02-002, LSO5-85-2-2, NUDOCS 8502120148 | |
| Download: ML13316A791 (4) | |
Text
110
'UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 February 8, 1985 Docket No. 50-206 LSO5-85-02-002 Mr. Kenneth P. Baskin Vice President, Nuclear Engineering Safety and Licensing Department Southern California Edison Company 2244 Walnut Grove Avenue Post Office Box 800 Rosemead, California 91770
Dear Mr. Baskin:
SUBJECT:
CONTAINMENT LEAKAGE TESTING Re:
San Onofre Nuclear Generating Station, Unit No. 1 The Commission has issued the enclosed Amendment No. 87 to Provisional Operating License No. DPR-13 for San Onofre Unit No. 1. This amendment consists of changes to the Technical Specifications (TSs) in response to your application dated September 9, 1983, as modified by letter dated April 12, 1984 and supplemented-on November 14, 1984.
This amendment incorporates changes to Section 4.3.1, Containment Testing, to achieve conformance with Appendix J to 10 CFR Part 50 of the Commission's regulations relating to Type B, Type C, and recirculation system testing.
Changes relating to Type A testing were issued in Amendment No. 75 to the license on June 4, 1984.
As discussed in Section 2.1 of the enclosed Safety Evaluation, the NRC staff has found that your proposed acceptance criteria relating to air lock testing is unacceptable. Your proposed criteria of 0.05 weight %/day at 49.4 psig (0.42 L ) and 0.025 weight %/day at 10 psig (0.21 La) are substantially grelter than what has normally been accepted by the NRC staff.
Based on the guidance contained in the Standard Technical Specifications, the leakage contribution of large penetrations, such as air locks, should be limited to no more than a small fraction of the allowable containment leakage; for example, 0.05 L.
Accordingly, we request that you revise your proposed acceptance criterion for air lock leakage rate testing to an acceptably low level.
Please provide this revised proposed TS within 45 days of receipt of this letter. Pending receipt of this revision and further discussion, the staff will defer acting on this portion of your application, as discussed and agreed to by the licensee.
The surveillance schedule for testing seals of active and passive containment ventilation isolation valves is 3 months and 6 months, respectively. This test frequency is acceptable as indicated in Section 2.2 of the enclosed 8502120148 850208 PDR ADOCK 05000206 P
)
Mr. Kenneth February 8, 1985 Safety Evaluation. However, it is not clear what the acceptance criteria are for these seal tests. Accordingly, we request that you submit a proposed TS that will specify these criteria. Please provide this proposed TS within 45 days of receipt of this letter.
A Notice of Consideration of Issuance of Amendment to License and Proposed No Significant Hazards Consideration Determination and Opportunity for Hearing related to the requested action was published in the Federal Register on June 20, 1984 (49 FR 25374).
No public comments or request for hearing were received.
A copy of our related Safety Evaluation is also enclosed. This action will appear in the Commission's monthly notice publication in the Federal Register.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, Original signed by John A. Zwolinski, Chief Operating Reactors Branch #5 Division of Licensing
Enclosures:
- 1. Amendment No. 87 to License No. DPR-13
- 2. Safety Evaluation cc w/enclosures:
See next page DISTRIBUTION Docket File NRC PDR as Local PDR ORB #5 Reading Ca, NSIC JZwolinski C L-'
CJamerson WPaulson c
OELD ELlordan PFMcKee ACRS (10)
RDiggs (w/fee form) TBarnhart (4)
LJHarmon EButcher WJones CMiles, OPA CL1
- SEE PREVIOUS PAGE FOR CONCURRENCE DL: ORB #5*
DL: ORB #5*
OELD*
DL: ORP #5 D
CJamerson:cs WPaulson LChandler
.JZwolinski DC chfiel 01/31/85 01/04/85 02/08/85 1L/00/85 4/ /85
Mr. Kenneth P. Baskin
- 2 A Notice of Consideration of Issuance of Amendment to License and Proposed No Significant Hazards Consideration Determination and Opportunity for Hearing related to the requested action was published in the Federal Register on June 20, 1984 (49 FR 25374).
No public comments or request for hearing were received.
A copy of our related Safety Evaluation is also enclosed. This action will appear in the Commission's monthly notice publication in the Federal Register.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, John A. Zwolinski,,Chief Operating Reactors Branch #5 Division of Licensing
Enclosures:
- 1. Amendment No.
to License No. DPR-13
- 2. Safety Evaluation cc w/enclosures:
See next page DISTRIBUTION Docket File NRC PDR Local PDR ORB #5 Reading NSIC JZwolinski CJamerson WPaulson OELD ELJordan PFMcKee ACRS (10)
RDiggs (w/fee form) TBarnhart (4)
LJHarmon EButcher WJones CMiles, OPA CLi DL: ORB #5 DL
- 5 ELD DL: ORB #5 DL: AD/SA CJamerson:c WP n
Lit JZwolinski DCrutchfield S/5k/85/
/85 n,/8/85
/ /85
/ /85
Mr. Kenneth February 8, 1985 cc Charles R. Kocher, Assistant Joseph 0. Ward, Chief General Counsel Radiological Health Branch James Beoletto, Esquire State Department of Health Southern California Edison Company Services Post Office Box 800 714 P Street, Office Bldg. 8 Rosemead, California 91770 Sacramento, California 95814 David R. Pigott Orrick, Herrington & Sutcliffe 600 Montgomery Street San Francisco, California 94111 Dr. Lou Bernath San Diego Gas & Electric Company P. 0. Box 1831 San Diego, California 92112 Resident Inspector/San Onofre NPS c/o U.S. NRC P. 0. Box 4329 San Clemente, California 92672 Mayor City of San Clemente San Clemente, California 92672 Chairman Board of Supervisors County of San Diego San Diego, California 92101 Director Energy Facilities Siting Division Energy Resources Conservation &
Development Commission 1516 - 9th Street Sacramento, California 95814 U.S. Environmental Protection Agency Region IX Office ATTN:
Regional Radiation Representative 215 Freemont Street San Francisco, California 94105 John B. Martin, Regional Administrator Nuclear Regulatory Commission, Region V 1450 Maria Lane Walnut Creek, California 94596