ML20248E817
| ML20248E817 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 09/28/1989 |
| From: | Thoma J Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20248E820 | List: |
| References | |
| RTR-REGGD-01.099, RTR-REGGD-1.099 NUDOCS 8910060028 | |
| Download: ML20248E817 (3) | |
Text
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7590-01 UNITED STATES NUCLEAR REGULATORY COMMISSION NORTHERN STATES POWER COMPANY MONTICELLO NUCLEAR GENERATING PLANT DOCKET NO. 50-263 ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT The U.S. Nuclear Regulatory Commission (the Commission) is considering issuance of an amendment to Facility Operating License No. DPR-22 issued to Northern States Power Company (the licensee) for operation of the Monticello Nuclear Generating Plant, located in Wright County, Minnesota.
ENVIRONMENTAL ASSESSMENT Identification of Proposed Action:
In accordance with the licensee's application for amendment dated March 31, 1989, the proposed amendment would revise the Technical Specifications to:
(1) revise the reactor vessel pressure vs. temperature (P/T) curves for consistency with Revision 2 of Regulatory Guide 1.99, " Radiation Embrittlement of Reactor Coolant Materials," (2) add requirements, consistent with Generic Letter 88-01, for augumented inservice inspection of piping susceptible to intergranular stress corrosion cracking (IGSCC); and (3) revise the requirements for the periodic Type A containment integrated leak rate test (CILRT) to permit the use of the mass point test method approved by the Commission in a recent change to 10 CFR 50, Appendix J, published in the FEDERAL REGISTER on November 15, 1988 (53 FR 45891).
The Need for the Proposed Action:
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The proposed amendment is needed in order to bring the requirements of the facility Technical Specifications into consistency with the current regulatory hdOUI$Nb
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L requirements of 10 CFR 50, Appendix J, and the Comission's positions of Generic Letters 88-01 and 88-11. The CILRT change is necessary to bring the Technical l
Specifications into consistency with current regulations and an exemption issued l
l-to the licensee on October 21, 1988.
Environmental Impacts of the Proposed Action:
The Comission has completed its evaluation of the proposed amendment to the Technical Specifications. The proposed amendment would implement procedural, testing and administrative changes for which the Comission has previously concluded, as demonstrated through the issuance of Regulatory Guides and an Exemption, would not increase the probability or consequences of accidents, change the types or. quantities of radiological or nonradio' logical effluents that may be released offsite, or significant increase the individual or cumulative occupational radiation exposure. Accordingly, the Comission concludes that this action would result in no significant environmental impact.
The Notice af Consideration of Issuance of Amendment and Opportunity for Hearing in connection with this action was published in the FEDERAL REGISTER on June 1, 1989 (54 FR 23553).
No request for hearing or petition for leave to intervene was filed following this notice.
Alternative to the Proposed Action:
The Comission has concluded that there is no measurable impact associated with the proposed amendment; any alternatives to the amendment will have either no environmental impact or greater environmental impact.
Alternative Use of Resources:
This action does not involve the use of any resources beyond the scope of resources used during normal plant operation, which have been previously J
l, L-.
considered by the Comission in the Final Environmental Statement dated November 22, 1972.
Agencies and Persons Consulted:
The Comission's staff reviewed the _ licensee's analysis supporting the proposed amendment. The staff did not consult with other agencies or persons.
FINDING OF NO SIGNIFICANT IMPACT Based on the foregoing environmental assessment, the Comission concludes that the proposed action will not have a significant effect on the quality of the human environment. Accordingly, the Comission has determined not to prepare an environmental impact statement for the proposed amendment.
For further details with respect to this action, see the application for amendment dated March 31, 1989, which is available for public inspection at the Comission's Public Document Room, 2120 L Street, NW., Washington, DC, and at the Minneapolis Public Library, Technology and Science Department, 300 Nicollet Mall, Minneapolis, M'innesota 55401.
Dated at Rockville, Maryland, this'28thday of September 1989 FOR THE NUCLEAR REGULATORY COMMISSION h.
ohn 0. Thoma, Acting Director Project Directorate III-1 Division of Reactor Projects - III, IV, V & Special Projects Office of Nuclear Reactor Regulation l