NOC-AE-18003538, No Active Safety Function Anchor Darling Double Disc Gate Valves

No Active Safety Function Anchor Darling Double Disc Gate Valves

ML18003B418
Person / Time
Site:	South Texas
Issue date:	01/03/2018
From:	Marc-Anthony Murray South Texas
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NOC-AE-18003538, STI: 34587213
Download: ML18003B418 (2)

Text

South Texas Project Electric Generating Stat/011 P.O. Box 28Ji Wadsworth, Texas 77481 January 3, 2017 NOC-AE-18003538 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 South Texas Project Units 1 and 2 Docket Nos. STN 50-498, STN 50-499 No Active Safety Function Anchor Darling Double Disc Gate Valves

References:

1) Letter from Greg Krueger (NEI) to John Lubinski, U.S. Nuclear Regulatory Commission, Anchor Darling Double Disc Gate Valve Industry Resolution Plan Update (Project 689), dated August 4, 2017

2) Letter from Joe Pollock (NEI) to Brian Holian, U.S. Nuclear Regulatory Commission, NSIAC Concurrence on Anchor Darling Double Disc Gate Valve Industry Response Actions (Project 689), dated October 26, 2017 In Reference 1, the Nuclear Energy Institute (NEI) provided the NRC a resolution plan for the U.S. Nuclear Industry to address the known Anchor Darling Double Disk Gate Valve (ADDDGV) issues. Reference 2 indicated each utility will provide a listing of their Anchor Darling valve population with active safety functions along with relevant valve information, including the results of susceptibility evaluations, repair status, and a repair schedule for each susceptible valve not yet repaired. Reference 2 also stated that utilities or sites without active safety function Anchor Darling DDGVs would also provide a response.

This letter serves to confirm that South Texas Project Units 1 and 2 do not use Anchor Darling DDGVs to support any active safety function.

There are no commitments in this letter.

Should you have any questions or require additional information, please contact Jimmie Richey at 361-972-7622.

Respectfully, Michael P. Murray Manager of Regulatory Affairs STI: 34587213

NOC-AE-18003538 Page 2 of 2 cc: (electronic copy)

(paper copy) Morgan, Lewis & Beckius LLP Paul Bessette Regional Administrator, Region IV U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Commission 1600 East Lamar Boulevard Lisa M. Regner Arlington, TX 76011-4511 NRG South Texas LP Lisa M. Regner Mark Walker Senior Project Manager Jim von Suskil U.S. Nuclear Regulatory Commission Skip Zahn One White Flint North (08H04) 11555 Rockville Pike CPS Energy Rockville, MD 20852 Kevin Pollo Cris Eugster NRC Resident Inspector L. D. Blaylock U. S. Nuclear Regulatory Commission P. 0. Box 289, Mail Code: MN116 City of Austin Wadsworth, TX 77483 Elaina Ball John Wester Texas Dept. of State Health Services Helen Watkins Robert Free