ML14350B369

Request for Additional INFORMATION-TO Adopt TSTF-426, Revise or Add Actions to Preclude Entry Into LCO 3.0.3

ML14350B369
Person / Time
Site:	Millstone
Issue date:	12/15/2014
From:	Thadani M C Plant Licensing Branch 1
To:	Craft W D Dominion Generation
References
Download: ML14350B369 (3)

Text

1 NRR-PMDAPEm Resource From: Thadani, Mohan Sent: Monday, December 15, 2014 10:00 AM To: Wanda D Craft (Generation - 6) (wanda.d.craft@

dom.com); William D Bartron (Generation -

4) (william.d.bartron@dom.com)

Cc: Snyder, Pete

Subject:

REQUEST FOR ADDITIONAL INFORMATIO N-TO ADOPT TSTF-426, "REVISE OR ADD ACTIONS TO PRECLUDE ENTRY INTO LCO 3.0.3 Wanda and Bill:

By letter dated June 30, 2014, (Agencywide Documents Access and Management System (ADA MS) Accession No. ML14188B189), Dominion Nuclear Connecticut, Inc., (the Licensee) submitted a License Ame ndment Reques t (LAR) for Millstone Power Station Unit 2. The proposed LAR would change the Technical Specifications (TS) by adopting approved Technical Specification Task Force (TSTF) traveler TSTF-426, Revision 5, "Revise or Add Actions to Preclude Entry into LCO 3.0.3

The NRC staff has reviewed the licensee's request and has a need for additional information to support the continuation of the review of the licensee's request. The NRC staff's request for additional information is attached below.

Please provide your responses within 30 days from the date of this email to facilitate timely completion of the NRC staff's review of the licensee's request.

Regards, Mohan C Thadani Senior Project Manager Millstone, Ginna, and Exelon Northeast Fleet Plant Licensing Branch I-1

Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation (301) 415-1476 Mohan.Thadani@nrc.gov

______________________________________________________________________________________

REQUEST FOR ADDITIONAL INFORMATION DOMINION NUCLEAR CONNECTICUT, INC., MILLSTONE POWER STATION UNIT 2 LICENSE AMENDMENT REQUEST TO ADOPT TSTF-426, REVISION 5, "REVISE OR ADD ACTIONS TO PRECLUDE ENTRY INTO LCO 3.0.3 - RITSTF INITIATIVES 6b AND 6c" DOCKETT NO: 50-336 By letter dated June 30, 2014, (Agencywide Documents Access and Management System (ADA MS) Accession No. 14188B189), Dominion Nuclear Connecticut, Inc., (the Licensee) submitted a License Amendment Request (LAR) for Millstone Power Station Unit 2. The LAR requests the adoption of approved Technical Specification Task Force (TSTF) traveler TSTF-426, Revision 5, "Revise or Add Actions to Preclude Entry into LCO 3.0.3 - RITSTF Initiatives 6b and 6c," which is an approved change to the Standard Technical Specifications (STS). The proposed changes replace required 2actions requiring either a default shutdown or explicit LCO 3.0.3 entry with a required action based on the risk significance for the system's degraded condition which varies from 8 to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

The Nuclear Regulatory Commission's regulatory requirements related to the content of the Technical Specifications are contained in Title 10 of the Code of Federal Regulations (10 CFR) 10 CFR 50.36. During the staff's review of the change to ensure that the change is in accordance with 10 CFR 50.36 the staff uses NRC guidance in NUREG-0800, Standard Review Plan, Chapter 16, Technical Specifications . According to this guidance the language in the proposed TS changes must be the same or equivalent to that in the current TS unless there is adequate technical or administrative reasoning supporting the change.

RAI #1 Technical Specification (TS) LCO 3.4.3 Action d is being separated into two actions d and e however the language as stated in new Action d is not the same as that is in the current TS. The language in New Required Action d.1 is "Place the associated PORV in manual control within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> -" The current TS language is "- prevent its associated PORV(s) from opening automatically." Please fully explain how the proposed language is equivalent to the language in the current TS.

RAI #2 Current TS LCO 3.4.4 Action b currently applies when two (2) groups of pressurizer heaters are inoperable. In that action statement with the pressurizer otherwise inoperable the plant must "- be in at least HOT STANDBY - within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />." If the proposed amendment is granted proposed TS LCO 3.4.4 Required Action c.1 would apply when 2 groups of pressurizer heaters are inoperable which requires at least one group of pressurizer heaters to be in OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or "be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and HOT SHUTDOWN within the following 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />." Please explain or provide an adequate basis for why 6 additional hours to be in HOT SHUTDOWN are included in proposed Required Action c.1 when compared to current Action b.

Hearing Identifier: NRR_PMDA Email Number: 1766 Mail Envelope Properties (Mohan.Thadani@nrc.gov20141215100000)

Subject:

REQUEST FOR ADDITIONAL INFORMATION-TO ADOPT TSTF-426, "REVISE OR ADD ACTIONS TO PRECLUDE ENTRY INTO LCO 3.0.3 Sent Date: 12/15/2014 10:00:28 AM Received Date: 12/15/2014 10:00:00 AM From: Thadani, Mohan Created By: Mohan.Thadani@nrc.gov Recipients: "Snyder, Pete" <Pete.Snyder@nrc.gov> Tracking Status: None "Wanda D Craft (Generation - 6) (wanda.d.craft@dom.com)" <wanda.d.craft@dom.com> Tracking Status: None "William D Bartron (Generation - 4) (william.d.bartron@dom.com)" <william.d.bartron@dom.com> Tracking Status: None Post Office: Files Size Date & Time MESSAGE 4265 12/15/2014 10:00:00 AM

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