ML20211E956

Application for Amend to License NPF-1,incorporating License Change Application 140,revising Tech Spec Pages B 3/4 7-4 & 3/4 7-17 to Reflect Columbia River as UHS W/Cooling Tower Basin as Backup

ML20211E956
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	06/12/1986
From:	Withers B PORTLAND GENERAL ELECTRIC CO.
To:
Shared Package
ML20211E948	List: ML20211E943 ML20211E956 ML20211E965
References
TAC-61726, NUDOCS 8606170072
Download: ML20211E956 (3)

Text

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l PORT ~AND GENERAL ELECTRIC COMPANY EUGENE WATER & ELECTRIC BOARD AND PACIFIC POWER & LIGHT COMPANY Operating License NPF-1 Docket 50-344 License Change Application 140 This License Change Application requests a modification of the Surveillance Requirements and Bases of Technical Specification Section 3/4.7.5, Appendix A to Operating License NPF-1 for the Trojan Nuclear Plant.

PORTLAND GENERAL ELECTRIC COMPANY By Y

Bart D. Withers Vice President Nuclear Subscribed and sworn to before me this 12th day of June 1986.

Notary Public of Ore [on O.

My Commission Expires:

. y I #M

~~

8606170072 860612 4 PDR ADOCK 0500 P

l PORTLAND CENERAL ELECTRIC COMPANY l

EUGENE WATER & ELECTRIC BOARD AND PACIFIC POWER & LICHT COMPANY Operating License NPF-1 Docket 50-344 License Change Application 140 This License Change Application requests a modification of the Surveillance Requirements and Bases of Technical Specification Section 3/4.7.5, Appendix A to Operating License NPF-1 for the Trojan Nuclear Plant.

PORTLAND GENERAL ELECTRIC COMPANY By Y

Bart D. Withers Vice President Nuclear Subscribed and sworn to before me this 12th day of June 1986.

Notary Public of Orefon 9MyCommission f I #M P

8606170072 860612 PDR ADOCK0500g4 P

f-LCA 140 Page 1 of 2

{.TCENSE CHANGE APPLICATION i

The proposed replacement pages to Appendix A of Facility Operating i

' License NPF-1 are provided as Attachment 1. A description of the changes l to the Technical Specifications are as follows: I l

pages B 3/4 7-4 and 3/4 7-17. This LCA rewords the Surveillance Require-ment and Bases to reflect that the Trojan ultimate heat sink is the Columbia River with the Cooling Tower basin serving as a backup.

REASON FOR CHANGE The purpose of this change is to bring the Technical Specification Bases and the FSAR into agreement by clarifying the Bases. The Surveillance Requirements will thus need editorial changes to present consistency.

i SAFETY / ENVIRONMENTAL EVALUATION These changes will have no effect on procedures, equipment, or the actual surveillance of the ultimate heat sink and, thus, do not present a safety or environmental concern.

SIGNIFICANT HAZARDS CONSIDERATION In accordance with the requirements of 10 CFR 50.92, the enclosed application is judged to involve no significant hazards based upon the following information:

, 1. Does the proposed license amendment involve a significant increase in l the probability or consequences of an accident previously evaluated?

l

Response

l Changing the Bases to esil the ultimate heat sink by name, the Columbia River, and stating that the Limiting Conditions for Operation are on the Cooling Tower basin does not alter the meaning of the Bases. Changing the Bases to improve clarity, as stated above, does not increase the probability or consequences of an accident.

While the title of Trojan Technical Specification Section 3/4.7.5 is Ultimate Heat Sink, subsection 3.7.5.1 states the Limiting Condition

for Operation of the Cooling Tower basin. The inspection requirement i of Section 3.7.5.1, Surveillance Requirement 4.7.5.1, thus, has always applied directly to the Cooling Tower basin and not the entire section title of the ultimate heat sink as the current wording implies. Throughout the previous 10 years of commercially operating i Trojan, the staff has verified the Limiting Condition for Operation

! of the Cooling Tower basin by inspecting the operability of the Cool-

> ing Tower basin. By stating that the direct subject of Surveillance

LCA 140 Page 2 of 2 Requirement 4.7.5.1, the Cooling Tower basin, will be inspected and not the ultimate heat sink, the Columbia River, neither the probability or consequences of an accident are increased.

2. Does the proposed license amendment create the possibility of a new or different kind of accident from any accident previously evaluated?

Response

The Columbia River has always been the ultimate heat sink.

Inspection to satisfy Surveillance Requirement 4.7.5.1 have always been performed on the Cooling Tower basin. The changes requested in this LCA, to both the surveillance requirement and the Bases, have been shown in the response of Question 1 not to make any change to use or surveillance of equipment and, thus, does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3. Does the proposed amendment involve a significant reduction in a margin of safety?

Response

The margin of safety (100 hours0.00116 days <br />0.0278 hours <br />1.653439e-4 weeks <br />3.805e-5 months <br /> of cooling water supply to safety-related equipment) provided by the Cooling Tower basin (the subject of TTS 3/4.7.5.1 and the Bases) will not be affected by replacing the misleading words ultimate heat sink by the actual equipment title, The Cooling Tower Basin, in TTS 4.7.5.1 nor by the editorial changes made to the Bases. For justification of calling the changes made to the Bases editorial, see Paragraph 1 of the response to Question 1.

In the April 6, 1983 Federal Resister, the NRC published a list of examples of amendments that are not likely to involve a significant hazards concern. Example No. 1 of that list applies to the clarification of the Ultimate Heat Sink Surveillance Requirement and Bases.

Example No. 1 states:

"A purely administrative change to technical specifications: for example, a change to achieve consistency throughout the technical specifications, correction of an error, or a change in nomenclature."

Based on the above evaluation, the proposed change does not pose a significant hazard.

NRO/kal 5762k.586

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