ML14350B368

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Request for Additional INFORMATION-LAR for Millstonr Unit 3, Auxiliary Feedwater System.
ML14350B368
Person / Time
Site: Millstone Dominion icon.png
Issue date: 12/15/2014
From: Thadani M C
Plant Licensing Branch 1
To: Craft W D
Dominion Generation
References
Download: ML14350B368 (3)


Text

1 NRR-PMDAPEm Resource From: Thadani, Mohan Sent: Monday, December 15, 2014 10:35 AM To: Wanda D Craft (Generation - 6) (wanda.d.craft@

dom.com); William D Bartron (Generation -

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

Cc: Alley, David; Wolfgang, Robert

Subject:

RE: REQUEST FOR ADDITIONAL INFO RMATION-LAR FOR MILLSTONR UNIT 3, "AUXILIARY FEEDWATER SYSTEM." Wanda and Bill:

By letter dated August 19, 2014, (Agencywide Documents Access and Management Syst em (ADAMS) Accession No. ML14237A099), Dominion Nuclear Connecticut, Inc., (the Licensee) submitted a License Ame ndment Reques t (LAR) for Millstone Power Station Unit 3. The proposed LAR would change the Technical Specifications (TS) 3/4.7.1.2, "Auxiliary Feedwater System," Surveillance Requirement (SR) 3/4. 7.1.2.b.

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 LICENSE AMENDMENT REQUEST FOR AUXILIARY FEEDWATER SYSTEM TECHNICAL SPECIFICATIONS CHANGE DOMINION NUCLEAR CONNECTICUT, INC.

MILLSTONE POWER STATION, UNIT 3 DOCKET NUMBER 50-423

By letter dated August 19, 2014, Dominion Nuclear Connecticut, Inc. (the licensee), to the U. S. Nuclear Regulatory Commission (NRC),submitted a license amendment request, Proposing change to the Technical Specifications for the "Auxiliary Feedwater System." (Agencywide Document Access and Management System (ADAMS) Accession Number ML14237A099).

2The 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 outlined below.

RAI EPNB-1 SR 4.7.1.2.1.b currently states required minimum total heads, in feet, for the turbine-driven auxiliary feedwater (TDAFW) pump and the two motor-driven auxiliary feedwater (MDAFW) pumps. Provide the required minimum differential pressures, in pounds per square inch, for

each pump.

RAI EPNB-2 For each pump, provide the inservice test flow rate reference point value and the differential pressure reference value for the quarterly test and the comprehensive test.

RAI EPNB-3 In the first paragraph of Section 3.3, it is stated that "The frequency of test performance may change based on equipment performance." Please provide more detail as to what this means.

RAI EPNB-4

Provide copies of any approved relief requests for the TDAFW pump and the two MDAFW pumps for the current inservice test (IST) interval.

Hearing Identifier: NRR_PMDA Email Number: 1765 Mail Envelope Properties (Mohan.Thadani@nrc.gov20141215103400)

Subject:

RE: REQUEST FOR ADDITIONAL INFORMATION-LAR FOR MILLSTONR UNIT 3, "AUXILIARY FEEDWATER SYSTEM." Sent Date: 12/15/2014 10:34:30 AM Received Date: 12/15/2014 10:34:00 AM From: Thadani, Mohan Created By: Mohan.Thadani@nrc.gov Recipients: "Alley, David" <David.Alley@nrc.gov> Tracking Status: None "Wolfgang, Robert" <Robert.Wolfgang@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 2871 12/15/2014 10:34:00 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received: