ML032380066

Request for Additional Information Concerning the Activation of the Liquified Natural Gas Facility

ML032380066
Person / Time
Site:	Calvert Cliffs
Issue date:	09/11/2003
From:	Vissing G NRC/NRR/DLPM/LPD1
To:	Vanderheyden G Calvert Cliffs
Vissing G, NRR/DLPM, 415-1441
References
TAC MC0188, TAC MC0189
Download: ML032380066 (4)

Text

September 11, 2003 Mr. George Vanderheyden, Vice President Calvert Cliffs Nuclear Power Plant, Inc.

Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, MD 20657-4702

SUBJECT:

CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS. 1 AND 2, REQUEST FOR ADDITIONAL INFORMATION CONCERNING THE ACTIVATION OF THE LIQUIFIED NATURAL GAS FACILITY (TAC NOS.

MC0188 AND MC0189)

Dear Mr. Vanderheyden:

The Nuclear Regulatory Commission (NRC) staff is reviewing the information provided by your letter dated July 10, 2003, concerning the resumption of liquified natural gas shipments to Cove Point and has determined that additional information is needed to support our review.

The enclosed request for additional information identifies the information needed. The NRC staff has discussed this with your staff who indicated that you could respond within 60 days.

Sincerely,

/RA by P. S.Tam/

Guy S. Vissing, Senior Project Manager, Section 1 Project Directorate I Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-317 and 50-318

Enclosure:

As stated cc w/encl: See next page

ML032380066 OFFICE PDI-1/PM PDI-1/LA EMCB EMCB PDI-1/SC NAME GVissing SLittle LLund KParczewski* RLaufer**

DATE 8/28/03 8/28/03 9/3/03 9/11/03 9/11/03

• Concurred by e-mail **PTam concurred for RLaufer Calvert Cliffs Nuclear Power Plant, Unit Nos. 1 and 2 cc:

President Patricia T. Birnie, Esquire Calvert County Board of Co-Director Commissioners Maryland Safe Energy Coalition 175 Main Street P.O. Box 33111 Prince Frederick, MD 20678 Baltimore, MD 21218 James M. Petro, Esquire Mr. Loren F. Donatell Counsel NRC Technical Training Center Constellation Energy Group, Inc. 5700 Brainerd Road 750 East Pratt Street, 5th floor Chattanooga, TN 37411-4017 Baltimore, MD 21202 Jay E. Silberg, Esquire Shaw, Pittman, Potts, and Trowbridge 2300 N Street, NW Washington, DC 20037 Mark Geckle Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Lusby, MD 20657-4702 Resident Inspector U.S. Nuclear Regulatory Commission P.O. Box 287 St. Leonard, MD 20685 Mr. Richard I. McLean, Manager Nuclear Programs Power Plant Research Program Maryland Dept. of Natural Resources Tawes State Office Building, B3 Annapolis, MD 21401 Regional Administrator, Region I U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Kristen A. Burger, Esquire Maryland Peoples Counsel 6 St. Paul Centre Suite 2102 Baltimore, MD 21202-1631

REQUEST FOR ADDITIONAL INFORMATION RESUMPTION OF LIQUIFIED NATURAL GAS SHIPMENT CALVERT CLIFFS NUCLEAR POWER PLANT, UNIT NOS. 1 AND 2 DOCKET NOS. 50-317 AND 50-318 In 1993, the licensee submitted a safety evaluation for hazards caused by the presence of the Liquified Natural Gas (LNG) facility at Cove Point. The licensees analysis considered the effects of ignition of the LNG released from the Cove Point facility and concluded that it would not threaten the integrity of the plant. In 1995, the NRC approved the licensees analysis.

The NRC staff believes there is a need to reconfirm the applicability of the 1993 evaluation to the current LNG plant design due to a proposed construction on the Cove Point site an 850,000-barrel storage tank in addition to the existing four 375,000-barrel and two 600,000-barrel storage tanks. The addition of this tank could increase the probability of tank failure.

Also, the maximum hazard distance of ignited gas (based on 3-psi overpressure criterion) for the 850,000-barrel tank may be different from that for the existing storage tanks. Since the risk to the Calvert Cliffs site is determined by combining the probabilities of occurrence of LNG spill with the consequences produced by its ignition/explosion, this risk may be different as a result of the additional storage tank.

The licensee is requested to reevaluate this part of its 1993 analysis.

Enclosure