ML20154H141

Application for Amend to License NPF-36,consisting of License Change Application 11,to Provide Clarification of Tech Specs

ML20154H141
Person / Time
Site:	Shoreham File:Long Island Lighting Company icon.png
Issue date:	05/19/1988
From:	Leonard J LONG ISLAND LIGHTING CO.
To:
Shared Package
ML20154H145	List: ML20154H141 ML20154H147 SNRC-1461, Forwards Application for Amend to License NPF-36,consisting of License Change Application 11.Fee Paid
References
NUDOCS 8805250238
Download: ML20154H141 (4)

Text

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LONG ISLAND LIGHTING COMPANY Operating License NPF-36 Docket 50-322 ,

License Change Application 11 This License Change Application reque;ts modification to Operating License NPF-36 for the Shoreham-Nuclear Power Station.

' 1. To provide clarification and eliminate the possibility of Technical Specification misinterpretation.

The request and supporting documentation is contained in Attachment 1 to this License Change Application.

Long Island Lighting Company By [ u ohn D.~ Leonard, Jr.

O- i Vice President - Nuclear pe rations Subscribed and sworn to before me this d.eLday of May 1988.

UNDA A. CRATTY NOTARY PUBUC. State of New YMk

• No.41162M _

tNahtw in Su'to coum No'tary Public of New ' York commswn D;xtes Va'cb 3019g My Commission Expires: N arc k 20, /7 70 8805250238 880519 7 PDR ADOCK 05000322 P DCD

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UNITED STATES OF AMERICA-9 l 'i' } NUCLEAR REGULATORY COMMISSION In the Matter of

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Long Island Lighting Company )' Docket No. 50-322

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< b SHOREHAM NUCLEAR POWER STATION - UNIT 1 1

.i CERTIFICATE OF SERVICE 1

I hereby certify that copies of License Change Application #1'l to the Operating License for Shoreham Nuclear Power Station - Unit 1, dated May /M 1988, have been served on the following by hand delivery or b Tdeposit in the United States mail, first class',

this R day of May 1988:

Mr. Jay Dunkleberger New York State Energy Office 2 Rockefeller Plaza Albany, New York 12223 L

T L. F. Britt, Manager Nuclear Licensing and Regulatory Affairs Subscribed and sworn to before me this 6 day of May 1988 UNDA A. CRATTY NOTARY PUBLIC, State of New Yod No 4316267 Qual.hed m Suffod County

• ComassJon Expres March 30,1920 Nd'ttify Public o'I New York

y My Commission Expires O)OrcI TC 1996 1

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c SNRC-1461 Attachment 1 Page 1 of 2 Attachment 1 To License Change Application til

1.0 DESCRIPTION

OF CHANGE, In Technical Specification 3.5.2 and 3.5.3.1, in Limiting Condition for Operation 3.5.2.a.2b, last line and 3.5.3.1.b.3, last line respectively, change wording

"... equivalent to a level of 9 feet." , to read

"... equivalent to an indicated level of 11.5 feet."

2.0 REASON FOR CHANGE For operational conditions 4 and 5, the SNPS Technical Specification requires having at least 100,000 gallons of water available in the Condensate Storage Tank (CST) for use byCoreSpraySystemwhentgesuppressionpoollevelisless than the limit of 76,870 ft (equivalent to a level of -6 inches gauge) or is drained. The CST 9 foot level equivalency, as presently identified in the Technical Specification, has always been utilized as a reference value for calculations (i.e., based on a tank internal diameter of 45 ft. and a height of 9 ft., a volume of 107,000 gallons can be calculated), and was never meant to be interpreted as actual tank level. The tank outlet nozzle which is used for all the ECCS systems (including Core Spray) is located approximately 1.75 feet above the floor of the CST. If the 9 foot level equivalency was misinterpreted to be actual indicated tank level, it could erroneously be concluded that only 7,25' (i.e., 9' - 1.75'), equivalent to approximately 86,00L gallons, would be available for ECCS suction. This requested Technical Specification change, as noted in the Description of Change above, continues to meet the SNPS Technical Specification requirement of having 100,000 gallons of water available, eliminates the possibility of misinterpretation, and provides the operator with a direct correlation between a CST tank level reading of 11.5' and the availability of 100,000 gallons or more of usable CST inventory for the Core Spray System during operational conditions 4 and 5.

3.0 BASIS FOR NO SIGNIFICANT HAZARDS F": DING In addition to the basic criteria of 10 CPR 50.92 (c) addressed below, LILCO believes that this amendment request falls within the guidance provided by the Commission (48 PR 14870) regarding examples of amendments that are not likely to involve significant hazards considerations. Specifically, this proposed amendment is an "administrative change" to technical specifications in that it provides clarification and eliminates the possibility of technical specification misinterpretation.

4. ,

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SNRC-1461 Attachment 1 Page 2 of 2 The proposed change does not involve a significant hazards consideration because operation of Shoreham Nuclear Power Station - Unit 1 in accordance with this change would not:

(1) involve a significant increase in the probability or consequences of an accident previously ,

evaluated. This change merely clarifies and identifies the Condensate Storage Tank (CST) level (indicated level) which meets or exceeds the technical specification requirement of maintaining 100,000 gallons of water available for Core Spray

_ system use. The CST low-low level alarm (since May 19,.1982) has always been set at an indicated level of 13 feet as measured from the bottom of the tank.

This was always the intended level which was to be used for ECCS reserve.

(2) create the possibility of a new or different kind of accident from any accident previously evaluated.

It nas been determined that a new or different kind of accident will not be possible due to this change. Design documentation specifically calls out a low-low level alarm and a CST transfer pump trip at an indicated level of 13 feet of tank

. elevation. Without the foregoing pumps to drain the tank, the ECCS systems are the only users of the water volume below the 13 foot level. If the suction line elevation (approximately 1.75 ft.) is deducted from the 13 ft., a useable volume of 11.25 ft. is achieved. This is equivalent to an approximate available volume of 133,800 gallons.

(3) involve a significant reduction in a margin of safety. The use of an 11.5 ft. indicated level as proposed in the technical specification change clarifies the 1.5 foot (i.e., 13 ft. - 11.5 ft) operational deviation that has always existed. If the CST transfer pumps do not deenergize - due to malfunction - at the 13 ft. level, the operator is permitted the same period of time to deenergize the pumps and not place himself in a technical specification violation.

4.0 TIMING OF CHANGE Since this change provides clarification and eliminates the possibility of a technical specification misinterpretation, LILCO requests that it become effective upon issuance.