ML031200537

Request for Additional Information: Licensing Basis Document Change Request 2-12-02, Unit 2 Technical Specification Change - Operation with Main Steam Line Code Safety Valves Inoperable

ML031200537
Person / Time
Site:	Millstone
Issue date:	04/17/2003
From:	Price J Dominion Nuclear Connecticut
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
B18881, TAC MB5799
Download: ML031200537 (3)

Text

I - 7 Dominion Nudear Connecticut, Inc.

Millstone Power Station W-Dominion-Rope Ferry Road Waterford, CT 06385 t ,

', Of: ; :

.. , I APR I 7 2003 Docket No. 50-336 B18881 RE: 10 CFR 50.90 U.S. Nuclear Regulatory Cbrhmissiton .

Attention: Document Control Desk -. -

Washington, DC 20555 Millstone Power Station, Unit No. 2 Request for Additional Information: Licensing Basis Document Change Request 2-12-02, Unit No. 2 Technical Specification Change - Operation With Main Steam Line Code Safety Valves Inoperable (TAC NO. MB5799)

In a letter dated August 1, 2002('), Dominion Nuclear Connecticut, Inc. (DNC) proposed changes to the Millstone Unit No. 2 Technical Specifications relating to the Main Steam Line Code Safety Valves technical specifications. On September 19, 2002(2), a request for additional information (RAI) was received from the NRC. On October 18, 2002(3),

DNC provided a response to the September 19, 2002 RAI. During a conference call on April 2, 2003, the NRC indicated that a clarification is required for the response to Question (3) included in our submittal dated October 18, 2002.

The purpose of this submittal is to clarify the response to Question 3 of the October 18, 2002 submittal.

The original response to Question 3 states in part:

"Based on the above results it has been concluded that plant operation in accordance with the proposed Technical Specification Table 3.7.1 power levels will assure that pressure relief capacities are sufficient to limit the primary and (1) J. A. Price letter to U.S. NRC, "Millstone Power Station, Unit No. 2, Licensing Basis Document Change Request 2-12-02, Unit No. 2 Technical Specification Change -

Operation With Main Steam Line Code Safety Valves Inoperable," dated August 1, 2002.

(2) Facsimile from R. Ennis, U.S. NRC to R. Joshi, DNC, Inc., "Issues for Discussion in Upcoming Telephone Conference Regarding Proposed Amendment to Technical Specifications, Operation with Main Steam Line Code Safety Valves Inoperable," dated September 19, 2002.

(3) J. A. Price letter to U.S. NRC, "Millstone Power Station, Unit No. 2, Request for Additional Information: Licensing Basis Document Change Request 2-12-02, Unit No. 2 Technical Specification Change Operation with Main Steam Line Code Safety Valves Inoperable,"

dated October 18, 2002.

U.S. Nuclear Regulatory Commission B18881/Page 2 secondary system pressures to less than 110% of their design limits of 2750 and 1100 psia respectively."

The revised response is as follows:

"Based on the above results it has been concluded that plant operation in accordance with the proposed Technical Specification Table 3.7.1 power levels will assure that pressure relief capacities are sufficient to limit the primary system pressures to less than 110% of the plant design limit (Design Limit is 2500 psia) and the secondary system pressure to less than 110% of the Chapter 14 analyses limit of 1000 psia. It should be noted that the Chapter 14 analyses limit is more conservative than the secondary plant component and piping design limit of 1000 psig."

The clarification provided above will not affect the conclusions of the Safety Summary and Significant Hazards Consideration discussion provided in the DNC August 1, 2002 submittal.

There are no regulatory commitments contained within this letter.

If you should have any questions on the above, please contact Mr. Ravi Joshi at (860) 440-2080.

Very truly yours, DOMINION NUCLEAR CONNECTICUT, INC.

J. a Price Sit ice President - Millstone Subscribed and sworn to before me this I day of f , 2003.

N aryp My Commission Expires:)//

cc: See next page Lorrie AArzamarski Notary Public Commission Expires February 28, 2006

-Uv U.S. Nuclear Regulatory Commission B1 8881/Page 3 cc: H. J. Miller, Region 1 Administrator R. B. Ennis, NRC Senior Project Manager, Millstone Unit No. 2 Millstone Senior Resident Inspector Director Bureau of Air Management Department of Environmental Protection 79 Elm Street Hartford, CT 06106-5127