ML14210A161

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NRR E-mail Capture - RAI - Defueld Technical Specification Amendment
ML14210A161
Person / Time
Site: Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date: 07/29/2014
From: James Kim
Division of Operating Reactor Licensing
To: Couture P
Entergy Corp
References
MF3714
Download: ML14210A161 (3)


Text

NRR-PMDAPEm Resource From: Kim, James Sent: Tuesday, July 29, 2014 9:01 AM To: Couture III, Philip Cc: Chappell, Coley; Meyer, Jeffrey T

Subject:

RAI - Defueld Technical Specification Amendment (TAC No. MF3714)

Mr. Couture, The Nuclear Regulatory Commission staff is reviewing the submittal and has determined that additional information is needed to complete its review. The specific request for additional information (RAI) questions are shown below. Based on our discussions we understand that a response to the RAI will be provided by August 29, 2014.

Jim Kim NRR/DORL Vermont Yankee PM 301-415-4125 REQUEST FOR ADDITIONAL INFORMATION BY CONTAINMENT AND VENTILATION BRANCH VERMONT YANKEE NUCLEAR POWER STATION, TECHNICAL SPECIFICATION CHANGES AND REVISED LICENSE CONDITION FOR PERMANENTLY DEFUELED CONDITION DOCKET NO. 50-271 In a letter dated March 28, 2014 (Reference 1), pursuant to Section 50.90 of Title 10 of the Code of Federal Regulations (CFR), Entergy Nuclear Operations, Inc. (ENO) submitted a license amendment request to Renewed Facility Operating License (OL) DPR-28 for Vermont Yankee Nuclear Power Station (VY). The submitted amendment revises the OL and revises the associated Technical Specifications (TS) to Permanently Defueled Technical Specifications (PDTS). ENO is requested to provide response to the following RAIs for NRC staff to complete its review:

SCVB-RAI-1 The staff understands that in the defueled state, the fuel pool cooling will be performed by the non-safety related fuel pool cooling system and also should to be backed up by a safety-related system in case the non-safety pool cooling is lost due to an event, such as a seismic event, or loss of offsite power. In case there is no safety-related pool cooling back up system and given the secondary containment and the standby gas treatment system have been removed from TS, please respond to the following questions:

(a) Would the fuel pool be allowed to boil with offsite steam release?

(b) What system will provide the makeup water to the spent fuel pool to maintain its level?

(c) What will be the offsite dose from the steam release, and verify that it is within the 10 CFR 100 allowed limit.

SCVB-RAI-2 1

Please confirm that spent fuel keff will not increase while the entire fuel is in the spent fuel pool. In case it increases, please discuss the effects of its increase on the decay heat generated in the pool, the pool temperature, and the offsite dose.

REFERENCES

1. Letter from Entergy Nuclear Operations, Inc. to NRC dated March 28, 2014, Technical Specifications Proposed Change No. 309 Defueled Technical Specifications and Revised License Conditions for Permanently Defueled Condition Vermont Yankee Nuclear Power Station Docket No. 50-271, (ADAMS Accession Number ML14091A291) 2

Hearing Identifier: NRR_PMDA Email Number: 1458 Mail Envelope Properties (James.Kim@nrc.gov20140729090100)

Subject:

RAI - Defueld Technical Specification Amendment (TAC No. MF3714)

Sent Date: 7/29/2014 9:01:19 AM Received Date: 7/29/2014 9:01:00 AM From: Kim, James Created By: James.Kim@nrc.gov Recipients:

"Chappell, Coley" <cchappe@entergy.com>

Tracking Status: None "Meyer, Jeffrey T" <jmeyer5@entergy.com>

Tracking Status: None "Couture III, Philip" <pcoutur@entergy.com>

Tracking Status: None Post Office:

Files Size Date & Time MESSAGE 2721 7/29/2014 9:01:00 AM Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received: