ML19309G336
| ML19309G336 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 04/30/1980 |
| From: | Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19309G337 | List: |
| References | |
| NUDOCS 8005060191 | |
| Download: ML19309G336 (2) | |
Text
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SACRAMENTO MUNICIPAL UTILITY DISTRICT C) 6201 S Street Cox 15830, Sacramepto 95813; (916) 452-3211 April 30, 1980 Director of Nuclear Reactor Regulation Attention:
Mr. Robert W. Reid, Chief Opcrating Reactors, Branch No. 4 U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Docket No. 50-312 Proposed Amendment No. 64 Supplement No. 2 N,
Rancho Seco Nuclear Generating Station, Unit No. 1
Dear Mr. Reid:
Your Order of June 27, 1979 required the District to submit Proposed i
Technical Specifications for modifications in compliance with the Commission's Order of May 7, 1979 Subsequent review by your staff has resulted in agree-ments with the District to add to the July 2, 1979 prcposal.
Mr. Mark Rubin (HRC) and Mr. Ron Colombo from my staf f reached mutual agreement to supplement No. I to Proposed Amendment No. 64 sent to you on October 31, 1979.
Finally, on February 26, 1980, you requested two additional Technical Specification changes be submitted to you prior to May 1, 1980.
This amendment contains all applicabic changes to the Technical Specifications included in the original supplement No. I and the requests in your February 26, 1980 letter.
The District has taken a single exception to your latest request.
Ve do not feel that Section 3.4.2.3 should require a shutdown within one hour if one 100% flowpath is not availabic. Under this condition, the auxiliary feedwater systems are inoperable and an orderly shutdown must be conducted that will prevent a challenge to the system, if a fast shutdown is conducted within your one-hour limit, the normal feedwater pumps may trip and a total loss of all l
feedwater results. This condition is a situation we both want to avoid.
We feel that a four-hour shutdown from full power is reasonable and will provide the least probability of normal feed pump trips.
Please consider this single exception the most conservative approach to the stated situation.
~
in accordance with 10 CFR 50.59, the Sacramento Municipal Utility District proposes to amend its operating license DPR-54 for Rancho Seco Nuclear Generating Station No. 1, by submitting Proposed Amendment No. 64, Revision 2, on May 1, 1980. Today, we are submitting forty (40) copics of Proposed Amendment 1
I No. 64, Revision 2, which incorporates the pertinent and applicable changes s,
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Director of Nuclear Reactor Regulation Attention:
'Mr. Robert W. Reid 4
Page 2 April 30, 1980 suggested and required by your staf f.
Dis submittal is exempt from the requested 4
Class ill fee under the provisions of Footnote 2 to 10 CFR 170.22.
Footnote 2 does permit the exemption of certain types of license amendments from fees.
These are:
1.
Those in fee Classes I, II and III which result from written Commission request provided that they have only minor safety significance, are to simplify or clarify the license or j
Technical Specifications and are being issued for the convent-ence of the Commission, and 2.
Orders issued by the Commission pursuant to 10 CFR 2.204.
The Commission requested this revision'via an Order from Harold R.
Denton (NRC) to J. J. Mattimoe dated June 27, 1979 and a letter from Robert W..
j Reid (NRC) to J. J. Mattimoe dated February 26, 1980.
Sincerely yours, 0.%U J.
. Mattimoc Assistant General Manager and Chief Engineer JJM:RWC:Jr 1
Sworn to and subscribed before me this 30 day of April,1980.
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Notary Public /
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