ML17025A298
| ML17025A298 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 01/24/2017 |
| From: | Cochran J State of CA, Energy Commission |
| To: | Balwant Singal Plant Licensing Branch IV |
| References | |
| MF7501, MF7502 | |
| Download: ML17025A298 (3) | |
Text
1 NRR-PMDAPEm Resource From:
Cochran, Justin@Energy <Justin.Cochran@energy.ca.gov>
Sent:
Tuesday, January 24, 2017 3:06 PM To:
Singal, Balwant Cc:
Weisenmiller, Robert@Energy; Oglesby, Rob@Energy; Barker, Kevin@Energy; Chester, Michelle@Energy
Subject:
[External_Sender] RE: Issuance of License Amendment Request for Diablo Canyon Power Plant, Units 1 and 2 Good day Project Manager Singal, Thank you for your patience.
At this time, the California State Liaison Officer Robert B. Weisenmiller has the following comments with regard to the License Amendment: Pacific Gas and Electric Company (PG&E), Docket Nos. 50-275 and 50-323, Diablo Canyon Nuclear Power Plant (DCPP), Unit Nos. 1 and 2, that would revise Technical Specification (TS) TS 3.4.12, Low Temperature Overpressure Protection (LTOP) System, to reflect mass input transient analysis that assumes an emergency core cooling system (ECCS) centrifugal charging pump (CCP) and the normal charging pump (NCP) capable of simultaneously injecting into the reactor coolant system (RCS) during the TS 3.4.12 applicability posted in the Federal Register on May 10, 2016 (81 FR 28899).
Updates to the Technical Specifications appear to have technical merits, and are defensible but the California State Liaison Officer has two comments due to the potential of the license amendment to impact facility operating safety.
The license amendment does not clearly outline the circumstances and rationale for the subject LAR to be submitted approximately eight years later (on March 23, 2016).
During this approximately eight year period, the license amendment does not identify if any related protective measures, other than the installed Flow Choking Orifice, were considered or implemented.
Thank you for your time and consideration.
Best Regards, Justin Cochran, Ph.D.
Nuclear Policy Advisor &
Emergency Coordinator California Energy Commission 1516 Ninth Street Sacramento, CA 95814 Office: 916-657-4353 Fax: 916-654-4475 justin.cochran@energy.ca.gov From: "Singal, Balwant" <Balwant.Singal@nrc.gov>
Date: January 18, 2017 at 8:16:58 AM PST To: "'robert.weisenmiller@energy.ca.gov'" <robert.weisenmiller@energy.ca.gov>, "'catherine.cross@energy.ca.gov'"
2
<catherine.cross@energy.ca.gov>, "'ira.schneider@cdph.ca.gov'" <ira.schneider@cdph.ca.gov>
Subject:
Issuance of License Amendment Request for Diablo Canyon Power Plant, Units 1 and 2
- All, The U.S. Nuclear Regulatory Commission (NRC) staff is in the process of issuing a license amendment to the license for DCPP in next 2-3 weeks. The amendments would revise Technical Specification (TS) TS 3.4.12, Low Temperature Overpressure Protection (LTOP) System, to reflect mass input transient analysis that assumes an emergency core cooling system (ECCS) centrifugal charging pump (CCP) and the normal charging pump (NCP) capable of simultaneously injecting into the reactor coolant system (RCS) during the TS 3.4.12 applicability.
The proposed findings that the amendments involve no significant hazards consideration was published in the Federal Register on May 10, 2016 (81 FR 28899).
Please let us know if State of California has any comments. Your response by January 25, 2017 will be highly appreciated.
Thanks.
Hearing Identifier:
NRR_PMDA Email Number:
3289 Mail Envelope Properties (59B233DDF9B71847BF7127C90147C5E511FA0CB5)
Subject:
[External_Sender] RE: Issuance of License Amendment Request for Diablo Canyon Power Plant, Units 1 and 2 Sent Date:
1/24/2017 3:06:02 PM Received Date:
1/24/2017 3:06:09 PM From:
Cochran, Justin@Energy Created By:
Justin.Cochran@energy.ca.gov Recipients:
"Weisenmiller, Robert@Energy" <Robert.Weisenmiller@energy.ca.gov>
Tracking Status: None "Oglesby, Rob@Energy" <Rob.Oglesby@energy.ca.gov>
Tracking Status: None "Barker, Kevin@Energy" <Kevin.Barker@energy.ca.gov>
Tracking Status: None "Chester, Michelle@Energy" <Michelle.Chester@energy.ca.gov>
Tracking Status: None "Singal, Balwant" <Balwant.Singal@nrc.gov>
Tracking Status: None Post Office:
057-SN2MPN1-031.057d.mgd.msft.net Files Size Date & Time MESSAGE 3247 1/24/2017 3:06:09 PM Options Priority:
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