ML20207F028

Requests Fr Publication of Notice of Consideration of Issuance of Amend to License DPR-34 & Proposed NSHC Determination & Opportunity for Hearing on 861219 Request Re Requirements for Steam Line Rupture Detection Sys

ML20207F028
Person / Time
Site:	Fort Saint Vrain
Issue date:	12/31/1986
From:	Berkow H Office of Nuclear Reactor Regulation
To:	NRC
References
TAC-60421, NUDOCS 8701050392
Download: ML20207F028 (3)

Text

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Docket No. 50-267 MEMORANDUM FOR: Sholly Coordinator FROM: Herbert N. Berkow, Director 5 Standardization and Special Projects Directorate Division of PWR Licensing-B

SUBJECT:

REQUEST FOR PUBLICATION IN BIWEEKLY FR NOTICE - NOTICE OF CONSIDERATION OF ISSUANCE OF AMENDMENT TO FACILITY OPERATING LICENSE AND PROPOSED NO SIGNIFICANT HAZARDS CONSIDERATION DETERMINATION AND OPPORTUNITY FOR A HEARING ,

Public Service Company of Colorado, Docket No. 50-267, Fort St. Vrain Nuclear Generating Station, Platteville, Colorado Date of amendment request: December 19, 1986 Description of amendment request: This proposed amendment updates an earlier amendment request made on June 4,1986 and noticed in the FEDERAL REGISTER on August 29, 1986 at 51 FR 27288. The proposed amendment incorporates the requirements for the licensee's Steam Line Rupture Detection / Isolation System (SLRDIS) at the Fort St. Vrain Nuclear Generating Station. Specifically, this proposed amendment adds new limiting conditions for operation and surveillance requirements to assure i that the SLRDIS will perform its design function should the reactor require this protective function. Requirements for the existing Steam Pipe Rupture Detection System will be deleted.

Basis for proposed no significant hazards consideration determination:

l Based upon PSC Safety Analysis Report (EE-EQ-0014), Steam Line Rupture l

Detection / Isolation System (SLRDIS), it is concluded that the SLRDIS is capable of performing its intended function to detect and isolate major l ruptures of high energy steam lines of the secondary cooling system without operator intervention. This was fully discussed in our previous notice 8701050392 861231 PDR ADOOK 05000267 P PDR

i referenced above. The specific changes made in this submittal clarify the actions to be taken by the operator when one or more SLRDIS ins rument channels becomes inoperative. It also reduces the time in which the operator must take action and adds provision for daily checks of the instrument channels.

Based on the above evaluation, we find no change to our earlier proposed determination that operation of Fort St. Vrain in accordance with the proposed amendment would not: (1) involve a significant increase in the probability or consequences of an accident previously evaluated; or (2) create the possibility of a new or different kind of accident from any accident previously evaluated; or (3) involve a significant reduction in the margin of safety. Therefore, the staff proposes to determine that the proposed changes do not involve a significant hazards consideration.

Local Public Document Room location: Greeley Public Library, City Complex Building, Greeley, Colorado Attorney for licensee: Bryant O'Donnell, Public Service Company of Colorado, P. O. Box 840, Denver, Colorado 80201-0840 NRC Project Director: Herbert N. Berk i

H rbert . Berkow, Director Standardization & Special Projects Directorate Division of PWR Licensing-B I

cc: K. Heitner P. Noonan

December 31, 1986 r_eferenced above. The specific changes made in this submittal clarify the actions to be taken by.the operator when one or more SLRDIS instrument channels becomes inoperative. It also reduces the time in which the operator must take action and adds provision for daily checks of the instrument channels.

Based on the above evaluation, we find no change to our earlier proposed determination that operation of Fort St. Vrain in accordance with the proposed. amendment would not: (1) involve a significant increase in the probability or consequences of an accident previously evaluated; or (2) create the possibility of a new or different kind of accident from any

-accident previously evaluated; or (3) involve a significant reduction in the margin of safety. Therefore, the staff proposes to determine that the proposed changes do not involve a significant hazards consideration.

Local Public Document Room location: Greeley Public Library, City Complex Building, Greeley, Colorado Attorney for licensee: Bryant O'Donnell, Public Service Company of Colorado, P. O. Box 840, Denver, Colorado 80201-0840 NRC Project Director: Herbert N. Berkow original signed by Herbert N. Berkow, Director Standardization & Special Projects Directorate Division of PWR Licensing-B cc: K. Heitner P. Noonan

DISTRIBUTION

Docket: File..J 0 Lynch KHeitner 0GC-BETH NRC PDR PBSS Reading HBerkow PNoonan Local PDR n

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