1CAN031503, Responses to Request for Additional Information Update the Reactor Coolant System Pressure and Temperature and the Low Temperature Overpressure Protection System Limits Arkansas Nuclear One, Unit 1

Responses to Request for Additional Information Update the Reactor Coolant System Pressure and Temperature and the Low Temperature Overpressure Protection System Limits Arkansas Nuclear One, Unit 1

ML15071A054
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/10/2015
From:	Jeremy G. Browning Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
1CAN031503
Download: ML15071A054 (3)

Text

SEntergy Entergy Operations, Inc.

1448 S.R. 333 Russellville, AR 72802 Tel 479-858-3110 Jeremy G. Browning Vice President - Operations Arkansas Nuclear One 1CAN031503 March 10, 2015 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

SUBJECT:

Responses to Request for Additional Information Update the Reactor Coolant System Pressure and Temperature and the Low Temperature Overpressure Protection System Limits Arkansas Nuclear One, Unit 1 Docket No. 50-313 License No. DPR-51

REFERENCES:

1. Entergy letter to NRC, "License Amendment Request Update the Reactor Coolant System Pressure and Temperature and the Low Temperature Overpressure Protection System Limits," dated November 21, 2014 (1CANl11401) (ML14330A249)

2. NRC email to Entergy dated March 4, 2015, "Request for Additional Information (2 nd Round) - Arkansas Nuclear One, Unit I - LAR to Revise Pressure - Temperature Limits to 54 EFPY - TAC No. MF5292" (1CNA031501)

Dear Sir or Madam:

In accordance with the provisions of Title 10 of the Code of Federal Regulations (10 CFR)

Section 50.90, Entergy Operations, Inc. (Entergy) submitted a request for an amendment to the Arkansas Nuclear One, Unit 1 (ANO-1) Technical Specifications (TS) to revise the Reactor Coolant System Pressure and Temperature (P/T) Limits (TS 3.4.3); Pressurizer (TS 3.4.9);

Pressurizer Safety Valves (TS 3.4.10); and Low Temperature Overpressure Protection (LTOP)

System (TS 3.4.11) requirements (Reference 1). The proposed changes would extend the applicability of the limits from 31 Effective Full Power Years (EFPY) to 54 EFPY.

In the course of its review, the NRC staff has determined that additional information is required to complete its evaluation of the request (Reference 2). Entergy's response to the NRC's request for additional information (RAI) is included in attachment to this letter.

Attachment I to this letter contains proprietary information - Attachment I is withheld from public disclosure per 10 CFR 2.390 Aoo 10

1CAN031503 Page 2 of 3 AREVA document ANP 3300Q2P, Revision 0, "Response to Request for Additional Information on Reactor Coolant System Pressure/Temperature and Low Temperature Overpressure Protection System Limits to 54 EFPY for Arkansas Nuclear One, Unit 1" has been prepared with the responses to the request. The information contained in the AREVA document is considered proprietary to AREVA. Attachment 1 is the proprietary version of the document. A non-proprietary version of the AREVA document is included in Attachment 2. AREVA requests that the proprietary information be withheld from public disclosure in accordance with 10 CFR 2.390.

AREVA has provided Entergy with authorization to provide the proprietary information. An affidavit by the information owner, AREVA, supporting the request for non-disclosure is provided in Attachment 3. Therefore, Entergy requests that Attachment 1 of this submittal be withheld from public disclosure in accordance with 10 CFR 2.390.

With respect to the original Entergy request, the information contained in this submittal has been evaluated and Entergy has determined that the assessment of the no significant hazards consideration provided in Reference 1 is not invalidated by this additional information.

In accordance with 10 CFR 50.91 (b)(1), a copy of this application is being provided to the designated Arkansas state official.

No new commitments have been identified in this letter.

If you have any questions or require additional information, please contact Stephenie Pyle at 479-858-4704.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on March 10, 2015.

Sincerely, ORIGINAL SIGNED BY TERRY A. EVANS FOR JEREMY G. BROWNING JGB/rwc Attachment I to this letter contains proprietary information - Attachment I is withheld from public disclosure per 10 CFR 2.390

1CAN031503 Page 3 of 3 Attachments

1. AREVA document ANP 3300Q2P, Revision 0, "Response to Request for Additional Information on Reactor Coolant System Pressure/Temperature and Low Temperature Overpressure Protection System Limits to 54 EFPY for Arkansas Nuclear One, Unit 1" PROPRIETARY

2. AREVA document ANP 3300Q2NP, Revision 0, "Response to Request for Additional Information on Reactor Coolant System Pressure/Temperature and Low Temperature Overpressure Protection System Limits to 54 EFPY for Arkansas Nuclear One, Unit 1" NON-PROPRIETARY

3. Affidavit cc: Mr. Marc L. Dapas Regional Administrator U. S. Nuclear Regulatory Commission Region IV 1600 East Lamar Boulevard Arlington, TX 76011-4511 NRC Senior Resident Inspector Arkansas Nuclear One P. 0. Box 310 London, AR 72847 U. S. Nuclear Regulatory Commission Attn: Ms. Andrea E. George MS O-8B1 One White Flint North 11555 Rockville Pike Rockville, MD 20852 Mr. Bernard R. Bevill Arkansas Department of Health Radiation Control Section 4815 West Markham Street Slot #30 Little Rock, AR 72205 Attachment I to this letter contains proprietary information - Attachment 1 is withheld from public disclosure per 10 CFR 2.390