ML20042F705

From kanterella
Jump to navigation Jump to search
Environ Assessment & Finding of No Significant Impact Re Amend to Tech Specs to Increase Allowable Response Time for High Flux/Number of Reactor Coolant Pumps to .631 Milliseconds
ML20042F705
Person / Time
Site: Davis Besse 
Issue date: 05/01/1990
From: Hannon J
Office of Nuclear Reactor Regulation
To:
Shared Package
ML20042F706 List:
References
NUDOCS 9005090286
Download: ML20042F705 (3)


Text

(

1 o

J

-]

^

7590-01 UNITED STATES NUCLEAR REGULATORY COMMISSION TOLEDO EDISON COMPANY AND CLEVELAND ELECTRIC ILLUMINATING COMPANY-DOCKET NO. 50-346 ENVIRONMENTAL ASSESSMENT AND FINDING OF I

NO SIGNIFICANT IMPACT i

The U. S. Nuclear Regulatory Commission (the Commis: ion) is considering

-issuance of an amendment to Facility Operating License No. NPF-3, issued to Toledo Edison Company and Cleveland Electric Illuminating Company (the licensees), for operation of the Davis-Besse Nuclear Power Station located in Ottawa County, Ohio.

ENVIRONMENTAL ASSESSMENT Identification of Proposed Action The proposed amendment would revise the provisions in the Technical Specifications (TS) to increase the allowable response time for the High Flux / Number of Reactor Coolant Pumps On (power / pumps) trip function of the Reactor Protection System from.451 milliseconds to.631 milliseconds.

In addition, an editorial change is proposed.

The proposed action is in accordance with the licen:ee's application L

for amendment dated February 21, 1989, as supplemented by letters dated July 19 and September 1. 1989.

The Need for the Proposed Action l

The proposed change to the TS is required in order to provide the l

L licensees with additional margin to a limit which is now very close to the capabilities of the equipment and, if exceeded, could force a plant shutdown to repair.

$k$00$$

vie

T1 j

2-Environmental Impacts of the Proposed Action The Commissian has completed its evaluation of the proposed revision to the TS and concludes that the analyses of the accidents will produce no significant changes to those previously analyzed and will have no effect on radiological effluents released from the site. Accordingly, the Commission concludes that this proposed action would result in no significant radiological environmental impact.

The Notice of Consideration of Issuance of Amendment and Opportunity for Hearing in connection with this action was published in the Federal Reoister on October 26,1989(54FR43636). No request for hearing or petition for leave to intervene was filed following this notice.

With regard to potential nonradiological impacts, the proposed change to the TS involves a change to a limit that does not affect nonradiological plant effluents and has no other environmental impact. Therefore, the Commission concludes that there are no significant nonradiological environmental impacts associated with the proposed amendment.

Alternative to the proposed Action Since the Commission concluded that there are no significant l

environmental effects that would result from the proposed action, any I

alternatives with equal or greater environmental impacts need not be evaluated.

The principal alternative would be to deny the requested amendment. This would not reduce environmental impacts of plant operation and would result in t

i reduced operational flexibility.

l

i

)

Alternative Use of Resources This action does not involve the use of any resources not previously i

considered in the final Environmental Statements for the Davis-Besse Nuclear Power Station, dated March 1973 and a Supplement dated October 1975.

1 Agencies and persons Consulted The NRC staff reviewed the licensee'r request and did not consult other agencies or persons.

FINDING OF NO SIGNIFICANT IMPACT The Commission has determined not to prepare an environmental impact statement for the proposed license amendment.

Based upon the foregoing environmental assessment, we conclude that the proposed action will not have a significant effect on the cuality of the human environment.

For further details with respect to this action, see the application f or amendment dated February 21, 1989 as supplemented July 19 and September 1, 1989 which are available for public inspection at the Commission's Public Document Room, 2120 L Street, N.W., Washington, D.C. and at the University of Toledo Library, Documents Department, 2801 Bancroft Avenue. Toledo, Ohio 43606.

Dated at Rockville, Maryland, this 1st day of May 1990.

FOR THE NUCLEAR REGULARTORY COMMISSION k

6%

/ ohn N. Hannon, Director Project Directorate 111-3 Division of Reactor Projects - III, IV, Y and Special Projects Office of Nuclear Reactor Regulation

)

'