ML20246D807
| ML20246D807 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 08/22/1989 |
| From: | Hood H Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20246D810 | List: |
| References | |
| NUDOCS 8908280280 | |
| Download: ML20246D807 (4) | |
Text
,
?p/
g.
- c I;. g 7590-01 UNITED STATES-NUCLEAR REGULATORY COMMISSION
. SOUTHERN CALIFORNIA EDISON COMPANY, ET AL.
DOCKET NOS. 50-361 AND 50-362
-SAN ON0FRE NUCLEAR GENERATING STATION, UNITS 2 AND 3 ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT The U. S. Nuclear Regulatory Commission (the' Commission) is consider-ing issuance of amendments to Facility Operating Licen::es No. NPF.-10.and No. NPF-15 issued to Southern California Edison Company, San Diego Gas and Electric Company,.the City of Riverside, California and the City of Anaheim,.
California-(thelicensees)foroperationofSanOnofreNuclear. Generating
. Station, Units 2 and 3, located in San Diego County, California.
ENVIRONMENTAL-ASSESSMENT Identification of Proposed Action:
The proposed amendments would revise the following Technical Specifications (TS)toincreasetheintervalforthe18-monthsurveillance tests to at least once per refueling interval, which is defined as 24 months, in support of the nominal 24-month fuel cycle:
a.
TS 3.4.7.6, " Snubbers."
b.
TS 3/4.10, "Special Test Exceptions." (Unit 2 only) 9908280280 890822
[O PDR-ADOCK 05000361
?
P PNV E
I
T
.z.
4.,
The Need for the Proposed Action:
The proposed amendments are required to prevent unnecessary plant shutdowns to perform a' surveillance test which cannot be performed during
. plant operatfon.
Environmental Impacts of the Proposed Action:
For each of the proposed amendments, the licensees provided analyses to
-demonstrate the reliability of the systems. The staff reviewed the licensees' analyses and agrees that reliab'ility of'the systems would not be significantly degraded by extension of.the surveillance intervals. Therefore, the staff has approved the proposed 24-month surveillance interval for these proposed changes.
As a result, the proposed action would not involve a significant change in the probability'or consequences of any accident previously' evaluated, nor.
'does it involve a new or different kind of accident. Consequently, any radiological releases resulting from an accident would not be significantly greater than previously determined. The proposed amendments do not otherwise affect routine radiological plant effluents. Therefore, the Commission concludes that there are no significant radiological environmental impacts associated with the proposed amendments. The Commission also concludes that the proposed action will not result in a significant increase in individual or cumulative occupational radiation exposure.
With regard to nonradiological impacts, the proposed amendments do not affect nonradiological plant effluents and have no other environmental impact.
Therefore, the Commission concludes that there are no significant nonradio-logical environment' impacts associated with the proposed amendments.
l'
m, t
i
'f 4
{
- -. 3--
'The Notices of Consideration of Issuance of Amendment and Opportunity for Hearing 1in connection with this action were published in the Federal Register on February 27,1989'(54FR8250)andApril 24, 1989 (54 FR 16438-D).- No
. request for hearing or: petition for leave to intervene was filed following these notices.
o,
Alternatives 1to the Proposed Action:
Because the Commission has concluded that there are no significant environmental impacts associated with the proposed action, there is no nee'd-to examine alternatives _ to the proposed action.
Alternative Use of Resources:
Thisl6ction does not involve the use of resources not previously considered
'in connection with~the Final Environmental' Statement'related to operation of San Onofre Nuclear ~ Generating Station, Units 2 and 3, dated April 1981 and its Errata dated June 1981.
p
-Agencies and Persons Consulted:
The NRC staff.has reviewed the licensees' request that supports.the-proposed amendments. The NRC staff 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 amendments.
Based upon the foregoing environmental assessment, the Commission concludes L
cthat'the proposed action will not have a significant effect on the quality of the human environment.
__.______----____m
_-_____.---__m__._________.__--_-._______._.-...-:____.---__.______.,__.__.__-_.--_-_m
.o:,
_l
*f._
,*r 4-For further details with' respect to this action,-see-the applications for-amendments. dated May 19, 1988 and March 10, 1989; which are availabe for public
. inspection at the' Commission's Public Document Room, 2120 L Street NW, Washington, DC 20555, and at_ the General Library, University of California, P.O. Box 19557, Irvine California:92713.
Dated at Rockville, Mary. land, this 22nd day of August,1989.
'FOR THE NUCLEAR REGULATORY COMMISSION Harry Rood, Acting Director Project Directorate V Division of Reactor Projects - III, IV, Y and Special Projects Office of Nuclear Reactor. Regulation 1
_. - _ -