ML20057A329
| ML20057A329 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 09/02/1993 |
| From: | Weiss S Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20057A326 | List: |
| References | |
| NUDOCS 9309140022 | |
| Download: ML20057A329 (4) | |
Text
,
i.
7590-01 UNITED STATES NUCLEAR REGULATORY COMMISSION SACRAMENTO NUNICIPAL UTILITY DISTRICT RANCHO SECO NUCLEAR GENERATING STATION DOCKET NO. 50-312 ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT l
The U.S. Nuclear Regulatory Commission (NRC) is considering approving an i
exemption from 10 CFR 50.120. This exemption would be granted to the Sacramento Municipal Utility District, the licensee for the Rancho Seco l
Nuclear Generating Station located in Sacramento County, California.
I ENVIRONMENTAL ASSESSMENT Identification of Proposed Action:
l The NRC, on its own motion, is considering granting a full exemption from the training program establishment, implementation, and maintenance requirements of 10 CFR 50.120. The licensee, in its letters dated July 19 and July 29, 1991, provided supplemental information supporting this action.
t The Need for the Proposed Action:
The Rancho Seco Nuclear Generating Station permanently ceased power operation in June 1989, fuel was moved from the reactor and placed into the spent fuel pool and a detailed plan to decommission the facility was i
developed. The proposed exemption would relieve the licensee from the requirements of 10 CFR 50.120. However, it would not relieve the licensee from previous requirements or commitments to train and qualify facility personnel.
9309140022 930902 PDR ADOCK 05000312 i
P PDR l
\\
i
(
i l
? l l
2 Environmental Impacts of the Proposed Action:
The proposed action does not have any effect on accident risk and the possibility of environmental impact is extremely remote.
Fuel handling accidents and complete loss of offsite power continue to be possible events at Rancho Seco Nuclear Generating Station. These events
[
were addressed in Chapter 14 of the Rar."ho Seco Nuclear Generating Station l
l l
Updated Safety Analysis Report and the licensee " Revision to Permanently Defueled Technical Specification Bases," dated September 23, 1992. The staff reviewed the licensee analysis and found the offsite radiological consequences acceptable. Additionally, the Sacramento Municpal Utility District is no l
l longer required to conduct offsite emergency planning.
Furthermore, the level of personnel activity at Rancho Seco Nuclear Generating Station is low j
compared to an operating reactor facility and the existing training programs i
are deemed acceptable, given the low level of activity at the site and the l
shutdown and defueled status of the plant.
Based on the staff review of the July 19 and July 29, 1993 submittals, l
the staff concludes that the environmental and safety consequences of accidents which may potentially result in a radiological release are greatly decreased given the permanently shutdown and defueled status of the Rancho Seco Nuclear Generating Station.
Therefere, the proposed action does not increase the probability or consequences of any accidents, no changes are being made in the types of any effluents that may be released offsite, and there is no significant increase in the allowable individual or cumulative occupational radiation exposure onsite.
i i
Accordingly, the NRC staff concludes that the proposed action would result in no significant radiological environmental impact.
With regard to potential nonradiological impacts, the proposed action does not affect nonradiological plant effluents and has no other l
environmental impact. Therefore, the NRC staff concludes that there are no significant nonradiological environmental impacts associated with the proposed l
action.
l Alternative to the ProDosed 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.
l The principal alternative would be to deny the action. This would not t
l reduce environmental impacts of plant operation and would not enhance the-protection of the environment nor public health and safety.
Alternative Use of Resources:
i This action does not involve the use of any resources not previously l
considered in previous reviews for the Rancho Seco Nuclear Generating Station.
l Aaencies and Persons Consulted:
(
The NRC staff consulted with the State of California regarding the f
environmental impacts of the proposed action.
FINDING OF NO SIGNIFICANT IMPACT Based upon the foregoing environmental assessment, the NRC staff l
concluded that the proposed action will not have a significant effect on the quality of the human environment. Accordingly, the NRC staff has determined, 1
i l
i I
i
(
2 i
i, i
_4_
i I
pursuant to 10 CFR 51.31, not to prepare an environmental impact statement for the proposed action.
i l
For further details with respect to thi: action, see the licensee i
a letters dated July 19, and July 29, 1993, which are available for public inspection at the Commission Public Document Room, 2120 L Street, NW.,
t j
Washington, DC 20555, and at the local public document room at the Central Library Government Documents, 828 I Street, Sacramento, California 95814.
l f
Dated at Rockville, Maryland, this 2"0 day of September 1993.
j FOR THE NUCLEAR REGULATORY COMMISSION b
Seymour H. Weiss, Director l
Non-Power Reactors and Decommissioning i
Project Directorate-i Division of Operating Reactor Support Office of Nuclear Reactor Regulation i
i i
9 1
i
_