ML13303B100
| ML13303B100 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 06/26/1989 |
| From: | Hickman D Office of Nuclear Reactor Regulation |
| To: | Baskin K Southern California Edison Co |
| References | |
| TAC-71603, TAC-71604, TAC-71794, TAC-71795 NUDOCS 8907050019 | |
| Download: ML13303B100 (4) | |
Text
June 26,1989 Docket Nos. 50-361 and 50-362 Mr. Kenneth P. Baskin Mr. Gary D. Cotton Vice President Senior Vice President Southern California Edison Company Engineering and Operations 2244 Walnut Grove Avenue San Diego Gas and Electric Company Post Office Box 800 101 Ash Street Rosemead, California 91770 Post Office Box 1831 San Diego, California 92112 Gentlemen:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION, SAN ONOFRE NUCLEAR GENERATING STATION, UNITS 2 AND 3 (TAC NOS. 71794, 71795, 71603 AND 71604)
By letters dated December 19 and December 30, 1988, you requested to extend the calibration interval for area and high range containment dose rate monitors from 18 months to 24 months. These requests were designated by you as PCNs 266 and 267. We find that we require additional information to complete our review of your submittals. Please provide the information requested in the enclosure within 30 days of your receipt of this letter.
The reporting and/or recordkeeping requirements of this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, original signed by Donald E. Hickman, Project Manager Project Directorate V Division of Reactor Projects III, IV, V and Special Projects Office of Nuclear Reactor Regulation
Enclosure:
RAI cc:
See next page TAC NOS. 71794/5-71603/4 LOG p9 6/21 DISTRIBUTION Docket File DHickman NRC & LPDRs OGC (f/info only)
PD5 Reading EJordan MVirgilio BGrimes JLee ACRS (10)
P DRSP PD :
D: DRSP DHickman:rw GWKnighton 6/ 89 6/73 89 6/2-Q89 8907050019 890626 P'DR ADOCK 05000361 p
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 June 26, 1989 Docket Nos. 50-361 and 50-362 Mr. Kenneth P. Baskin Mr. Gary D. Cotton Vice President Senior Vice President Southern California Edison Company Engineering and Operations 2244 Walnut Grove Avenue San Diego Gas and Electric Company Post Office Box 800 101 Ash Street Rosemead, California 91770 Post Office Box 1831 San Diego, California 92112 Gentlemen:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION, SAN ONOFRE NUCLEAR GENERATING STATION, UNITS 2 AND 3 (TAC NOS. 71794, 71795, 71603 AND 71604)
By letters dated December 19 and December 30, 1988, you requested to extend the calibration interval for area and high range containment dose rate monitors from 18 months to 24 months. These requests were designated by you as PCNs 266 and 267. We find that we require additional information to complete our review of your submittals. Please provide the information requested in the enclosure within 30 days of your receipt of this letter.
The reporting and/or recordkeeping requirements of this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, Donald E. Hickman, Project Manager Project Directorate V Division of Reactor Projects III, IV, V and Special Projects Office of Nuclear Reactor Regulation
Enclosure:
RAI cc:
See next page
Mr. Kenneth P. Baskin San Onofre Nuclear Generating Southern California Edison Company Station, Units 2 and 3 cc:
Charles R. Kocher, Esq.
Mr. Mark Medford James A. Beoletto, Esq.
Southern California Edison Company Southern California Edison Company 2244 Walnut Grove Avenue 2244 Walnut Grove Avenue P. 0. Box 800 P. 0. Box 800 Rosemead, California 91770 Rosemead, California 91770 Mr. Robert G. Lacy Orrick, Herrington & Sutcliffe Manager, Nuclear Department ATTN: David R. Pigott, Esq.
San Diego Gas & Electric Company 600 Montgomery Street P. 0. Box 1831 San Francisco, California 94111 San Diego, California 92112 Alan R. Watts, Esq.
Dr. Gerard C. Wong, Chief Rourke & Woodruff Radiological Materials Control 701 S. Parker St. No. 7000 Section Orange, California 92668-4702 State Department of Health Services 714 P Street, Building #8 Mr. Sherwin Harris Sacramento, California 95814 Resource Project Manager Public Utilities Department Resident Inspector, San Onofre NPS City of Riverside c/o U.S. Nuclear Regulatory Commission 3900 Main Street Post Office Box 4329 Riverside, California 92522 Mayor, City of San Clemente Mr. Charles B. Brinkman San Clemente, California 92672 Combustion Engineering, Inc.
12300 Twinbrook Parkway, Suite 330 Regional Administrator, Region V Rockville, Maryland 20852 U.S. Nuclear Regulatory Commission 1450 Maria Lane/Suite 210 Mr. Roy Zimmerman Walnut Creek, California 94596 U.S. Nuclear Regulatory Commission Region V Chairman, Board Supervisors 1450 Maria Lane, Suite 210 San Diego County Walnut Creek, California 94596 1600 Pacific Highway, Room 335 San Diego, California 92101 Mr. Don Womeldorf Chief Environmental Mangement Branch Mr. F. B. Marsh, Project Manager California Department of Health Bechtel Power Corporation 714 P Street, Room 616 P.O. Box 60860 Sacramento, California 95814 Terminal Annex Los Angeles, California 90060 (15)
ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION SAN ONOFRE UNITS 2 AND 3 RADIOLOGICAL MONITOR CALIBRATION FREQUENCY (TAC NOS. 71794, 71795, 71603, AND 71604 In order to evaluate your request to change the instrument calibration frequency in Technical Specifications, we require responses to the following concerns:
- 1. Define an out of tolerance instrument linearity failure.
- 2. Describe how your monthly channel functional tests would detect gross (e.g., a factor of two or more deviation from an expected value) non-linearities.
- 3. Discuss how the area and high range monitor readings would be interpreted and used during an emergency. In particular, consider and scope how non-linearities at various dose rates could adversely affect decision-making.(emergency actions) given elevated monitor readings in various decades over the detector/instrumentation ranges.
- 4. Your calibration experience during surveillance intervals from August 5, 1983 to March 1, 1988 (10 failures out of 12 attempts for area monitors and 2 failures out of 15 attempts for high range monitors) is not supportive of your request to extend your average calibration interval from 18 months to 24 months. Please provide additional discussion of the significance of these failures and address any alternatives that might provide increased confidence in the equipment for a 24 month surveillance interval.