GNRO-2017/00045, Request for Severe Accident Management Guidelines (Samgs) Commitment Schedule Relaxation

Request for Severe Accident Management Guidelines (Samgs) Commitment Schedule Relaxation

ML17180A070
Person / Time
Site:	Grand Gulf
Issue date:	06/29/2017
From:	Emily Larson Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
GNRO-2017/00045
Download: ML17180A070 (3)

Text

~Entergy Entergy Operations, Inc.

P.O Box756 Port Gibson. MS 39150 Eric A. Larson Site VICe President Grand Gulf Nuclear Slalion Tel (601) 437.7500 GNRO-2017/00045 June 29,2017 U.S. Nuclear Regulatory Commission ATIN: Document Control Desk Rockville, MD 20852

SUBJECT:

Request for Severe Accident Management Guidelines (SAMGs) Commitment Schedule Relaxation Grand Gulf Nuclear Station - Unit 1 Docket No. 50-416 License No. NPF-29

REFERENCES:

1. "Nuclear Energy Institute Industry Initiative to Maintain Severe Accident Management Guidelines, " Letter to the Nuclear Strategic Issues Advisory Committee, dated October 26, 2015

2. Entergy Letter to NRC, "Grand Gulf Nuclear Station Commitment to Maintain Severe Accident Management Guidelines," dated January 20, 2016 (GNRO*2016/00001 )(ML16020A090).

Dear Sir or Madam:

The Nuclear Energy Institute (NEI) Nuclear Strategic Issues Advisory Committee (NSIAC) recently approved an Industry Initiative to maintain and perform timely updates to site specific Severe Accident Management Guidelines (SAMGs)(Reference 1). This letter established commitments related to SAMGs for Grand Gulf Nuclear Station (GGNS). The guidelines are to be used by emergency response personnel during accident conditions that progress beyond the mitigation capabilities described in Emergency Operating Procedures (EOPs). SAMG strategies are intended to arrest the progression of fuel damage, maintain the capability of the containment as long as possible, and to minimize radiological releases.

In Reference 2, GGNS documented commitments to update the site to the BWROG generic .

SAMGs, revision 3, by June 30, 2017. Further, GGNS made a commitment to update to future revisions of the SAMGs within 2 refueling outages or 3 year, whichever is greater. During the review of the Plant Specific Technical Guidelines (PSTGs), which provide guidance on how to meet the intent of the BWROG/Eps/SAPs, it was discovered that the revision would require significantly more expertise than was available to GGNS. A request was made to contract Subject Matter Experts (SMEs) to assist with the revision. Additional time is needed to complete the task and Entergy, respectfully, requests an extension to December 28,2017 to implement revision 3 to the GGNS SAMGs.

This letter contains no new Regulatory Commitments.

GNRO-2017/00045 Page 2 of 3 Should you have any questions concerning the content of this letter. please contact James Nadeau at 601-437-2103.

Sincerely, cc-L___

Eric A. Larson Site Vice President Grand Gulf Nuclear Station EAUsas

GNRO-2017/00045 Page 30f 3 cc:

Mr. Kriss M. Kennedy U.S. Nuclear Regulatory Commission Regional Administrator, Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 Mr. Siva Lingham U.S. Nuclear Regulatory Commission Mail Stop OWFN 8 B1 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 Dr. Mary Currier, M.D., M.P.H State Health Officer Mississippi Department of Health P.O. Box 1700 Jackson, MS 39215-1700 Email: mary.currier@msdh.ms.gov