ML13319A213

From kanterella
Jump to navigation Jump to search

Forwards Post-Accident Sampling Sys,Capabilities & Description, & Drawings,In Response to Open Item Identified in NRC Re Implementation of TMI Lessons Learned Requirements.Drawings Available in Central Files Only
ML13319A213
Person / Time
Site: San Onofre 
Issue date: 07/09/1980
From: Baskin K
Southern California Edison Co
To: Crutchfield D
Office of Nuclear Reactor Regulation
Shared Package
ML13319A215 List:
References
RTR-NUREG-0578, RTR-NUREG-578, TAC-44128 NUDOCS 8007150579
Download: ML13319A213 (2)


Text

Southern California Edison Company P. 0. BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD. CALIFORNIA 91770 K. P. BASKIN TELEPHONE MANAGER. NUCLEAR ENGINEERING uly 9 1980 (213) 572-1401 ANO LICENSING Director, Office of Nuclear Reactor Regulation Attention:

D. M. Crutchfield, Chief Operating Reactors Branch 5 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Gentlemen:

Subject:

Docket No. 50-206 Implementation of Category "A" Lessons Learned Requirements San Onofre Nuclear Generating Station Unit 1 By letter dated May 2, 1980, you forwarded the NRC staff's evaluation of the implementation of Category "A" Lessons Learned Requirements at San Onofre Unit 1. Based on the NRC staff's evaluation, our implementation of the "Post-Accident Sampling" requirements contained in Section 2.1.8.a of NUREG-0578 as clarified, was identified as an open item, and your May 2, 1980 letter requested that we respond with regard to our intentions to meet the requirements specified in the NRC staff's evaluation. Our May 22, 1980 letter provided our commitment to submit a description of the modifications to meet the "Post-Accident Sampling" requirements together with a more detailed justification for deferral of the modifications to the Systematic Evaluation Program, if this implementation schedule is sought, by July 1, 1980.

Accordingly, submitted herewith is the report entitled "Post Accident Sampling System, Capabilities and Description, San Onofre Nuclear Generating Station, Unit 1, July, 1980."

As described in our May 22, 1980 letter, the piping and instrumentation diagram and the site location plan included as part of the enclosed report are preliminary in nature. We will advise you of any changes in these drawings which significantly alter the design/operation of the Post-Accident Sampling System as described in the enclosed report.

Based on the information contained in the enclosed report, the Post-Accident Sampling System modifications will not be substantially impacted by any potential modifications identified by review of station design and operation in connection with the Systematic Evaluation Program. Therefore, it

/

is our intention to complete the modifications described in the enclosed report by January 1, 1981, or during a unit shutdown on or about January 1, SEND b2w.

1981 for completion of the modifications provided that (1) engineering so' 800715o591

D. M. Crutchfield, Chief

-2 and procurement in support of the modifications continue to proceed on the present accelerated schedule in support of that deadline, and (2) system and regional reliability considerations at the time of the scheduled shutdown do not dictate otherwise. We will advise you of any changes in this implementation schedule.

As discussed with members of your staff, submittal of this information has been delayed beyond July 1, 1980 as originally indicated in our May 22, 1980 letter.

If you have any questions or desire further information concerning the enclosed report, please contact me.

Very truly yours, Enclosure

Southern California Edison Company P.

. BOX oo 2244 WALNUT GROVE AVENUE ROSEMEAD. CALIFORNIA 91770 K. P. BASKIN TELEPHONE MANAGER. NUCLEAR ENGINEERING July 9, 1980 (213) 572o1401 AND LICENSING Director, Office of Nuclear Reactor Regulation Attention:

D. M. Crutchfield, Chief Operating Reactors Branch 5 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Gentlemen:

Subject:

Docket No. 50-206 Implementation of Category "A" Lessons Learned Requirements San Onofre Nuclear Generating Station Unit 1 SEE oo Co 8

7 5 V

By letter dated May 2, 1980, you forwarded the NRC staff's evaluation of the implementation of Category "A" Lessons Learned Requirements at San Onofre Unit 1. Based on the NRC staff's evaluation, our implementation of the "Post-Accident Sampling" requirements contained in Section 2.1.8.a of NUREG-0578 as clarified, was identified as an open item, and your May 2, 1980 letter requested that we respond with regard to our intentions to meet the requirements specified in the NRC staff's evaluation. Our May 22, 1980 letter provided our commitment to submit a description of the modifications to meet the "Post-Accident Sampling" requirements together with a more detailed justification for deferral of the modifications to the Systematic Evaluation Program, if this implementation schedule is sought, by July 1, 1980.

Accordingly, submitted herewith is the report entitled "Post Accident Sampling System, Capabilities and Description, San Onofre Nuclear Generating Station, Unit 1, July, 1980."

As described in our May 22, 1980 letter, the piping and instrumentation diagram and the site location plan included as part of the enclosed report are preliminary in nature. We will advise you of any changes in these drawings which significantly alter the design/operation of the Post-Accident Sampling System as described in the enclosed report.

Based on the information contained in the enclosed report, the Post-Accident Sampling System modifications will not be substantially impacted by any potential modifications identified by review of station design and operation in connection with the Systematic Evaluation Program. Therefore, it is our intention to complete the modifications described in the enclosed report by January 1, 1981, or during a unit shutdown on or about January 1, SEND Uawy%3 1981 for completion of the modifications provided that (1) engineering 8

7A 1'40 7

8007 1557

D. M. Crutchfield, Chief

-2 and procurement in support of the modifications continue to proceed on the present accelerated schedule in support of that deadline, and (2) system and regional reliability considerations at the time of the scheduled shutdown do not dictate otherwise. We will advise you of any changes in this implementation schedule.

As discussed with members of your staff, submittal of this information has been delayed beyond July 1, 1980 as originally indicated in our May 22, 1980 letter. If you have any questions or desire further information concerning the enclosed report, please contact me.

Very truly yours, Enclosure