ONS-2013-022, Additional Information Associated with License Amendment Request for Reverse Osmosis System Operation, License Amendment Request No. 2012-05, Supplement 5

Additional Information Associated with License Amendment Request for Reverse Osmosis System Operation, License Amendment Request No. 2012-05, Supplement 5

ML13339A742
Person / Time
Site:	Oconee
Issue date:	12/02/2013
From:	Batson S Duke Energy Carolinas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
ONS-2013-022
Download: ML13339A742 (3)

Text

UKE ENERGY Scott L. Batson Vice President Oconee Nuclear Station Duke Energy ONGIVP 17800 RochesterHwy Seneca, SC 29672 ONS-2013-022 o: 864.873.3274

f. 864.873.4208 10 CFR 50.90 Scoft.Batson@duke-energy.com December 2, 2013 Attn: Document Control Desk U. S. Nuclear Regulatory Commission 11555 Rockville Pike Rockville, MD 20852-2746

Subject:

Duke Energy Carolinas, LLC Oconee Nuclear Station, Units 1, 2 and 3 Renewed Facility Operating License Numbers DPR-38, 47 and 55; Docket Numbers 50-269, 50-270 and 50-287; Additional Information Associated with License Amendment Request for Reverse Osmosis System Operation, License Amendment Request No. 2012-05, Supplement 5 On October 30, 2012, Duke Energy Carolinas, LLC (Duke Energy) submitted a License Amendment Request (LAR) requesting Nuclear Regulatory Commission (NRC) approval to operate a Reverse Osmosis (RO) System to remove silica from the Borated Water Storage Tanks (BWSTs) and Spent Fuel Pools (SFPs) during Unit operation. The LAR also requested approval of associated proposed new Technical Specifications (TSs) and Bases that impose new requirements for RO System operation and isolation. On January 21, 2013, Duke Energy submitted supplemental information, in response to additional information requested during the NRC Acceptance Review. On June 11, 2013, Duke Energy responded to a request for additional information (RAI) made by the NRC by letter dated April 12, 2013. By letter dated July 18, 2013, the NRC requested Duke Energy to provide additional information. Duke Energy responded to this RAI on September 3, 2013 committing to install automatic isolation valves and provided revised proposed Technical Specifications to address this change by letter dated October 21, 2013.

By electronic mail dated October 28, 2013, NRC staff requested Duke Energy to docket the failure mode of the automatic isolation valves (SF-166 and SF-167 for Units 1 and 2 and 3SF-215 and 3SF-216 for Unit 3) being installed to isolate the SFPC purification system and RO system supply piping post loss-of-coolant accident (LOCA). They are spring close/air open valves that fail closed on loss of power or loss of air.

Inquiries on this submittal should be directed to Boyd Shingleton, Oconee Regulatory Affairs Group, at (864) 873-4716.

www.duke-energy.com

LA. S. Nuclear Regulatory Commission December 2, 2013 Page 2 I declare under penalty of perjury that the foregoing is true and correct. Executed on December 2, 2013.

Sincerely, Scott L. Batson Vice President Oconee Nuclear Station

Q. S. Nuclear Regulatory Commission December 2, 2013 Page 3 cc:

Mr. Victor McCree, Regional Administrator U. S. Nuclear Regulatory Commission - Region II Marquis One Tower 245 Peachtree CenterAve., NE, Suite 1200 Atlanta, GA 30303-1257 Mr. Richard Guzman, Acting Project Manager (by electronic mail only)

Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission 11555 Rockville Pike Mail Stop O-8C2 Rockville, MD 20852-2746 Mr. Eddy Crowe NRC Senior Resident Inspector Oconee Nuclear Site Ms. Susan Jenkins, Manager Radioactive & Infectious Waste Management Division of Waste Management South Carolina Department of Health and Environmental Control 2600 Bull St.

Columbia, SC 29201