ML20006E935
| ML20006E935 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 02/14/1990 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20006E934 | List: |
| References | |
| NUDOCS 9002260561 | |
| Download: ML20006E935 (4) | |
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t 7590-01 CONNECTICUT YANKEE ATOMIC POWER COMPANY HADDAM NECK PLANT DOCKET NO. 50-213 l
ENVIRONMENTAL ASSESSMENT AND FINDING OF r
NO SIGNIFICANT IMPACT The U. S. Nuclear Regulatory Commission (NRC or the Commission) is considering issuance of an amendment to Facility Operating License DPR-61 to Connecticut Yankee Atomic Power Company (CYAPC0/ licensee), for the Haddam Neck Plant located in Middlesex County, Connecticut.
ENVIR0f: MENTAL ASSESSMENT identification of Proposed Action:
The proposed amendment would upgrade the custom Technical Specification (TS) format to the Westinghouse Standard-format Technical Specifications (WSTS).
All sections of the current custom TS will be reformatted in this proposed TS except for Sections 3.6, 3.7 and 4.3 which were re-fornatted by Amendment No. 121, and Sections 3.12 and 4.5 which will be re-formatted by amendment request cated August 29, 1988.
The propcsed action is in accordance with the licensee's applications dated October 26, 1988, March 6. June 2 June 23, July 28, and August 4, 1989 and supplemented by submittals dated August 21, and November 22, 1989.
In addition, the licensee has completed several modifications to the plant during the 1989-1990 outage. Haddam Neck has modified the fire detection /
suppression system in support of the new switchgear room required by 10 CFR Part 50 Appendix R, upgraded the reactor protection system and upgraded the nuclear instrumentation system. As a result of these modifications the proposed upgraded TS were revised to reflect the current plant configuration.
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The proposed actions are in accordance with the licensee's application dated July 31, 1989 to revise the fire detection / suppression system TS and July 28, 1989 to revise the various reactor protection system and nuclear i
instrumentation system TSs.
The Need for the Proposed Action:
As part of the Systematic Evaluation Program (SEP), CYAPC0 committed to convert their custom TS to the WSTS.
In a meeting on September 20, 1988, CYAPCO proposed to submit the TS conversion packages over a 3 month period beginning October 1988. With the impending issuance of the revised WSTS, the r
staff proposed that it would ba advantageous for CYAPC0 to await the issuance cf the revised USTS before addressing the full WSTS conversion.
In the interim, the staff agreed that the custom TS format could be upgraded to the current HSTS format.
As noted above, because the fire detection / suppression system was modified, and the reactor protection and nuclear instrumentation systems were upgraded the proposed TSs needed to be amended to reflect the upgrades of these systems.
Environmental Impacts of the Proposed Action:
The staff completed its evaluation of the proposed revisions to the Technical Specifications. The staff has concluded that this TS upgrade would: 1) provide a substantially improved TS while facilitating the future conversion effort to the revised WSTS, 2) provide definitive limiting conditions for operation (LCO) and action statements for several safety related systems, 3) eliminate the use of administrative TS, 4) provide a mechanism to close prior TS commitments associated with NUP.EG 0737, SEP and various other Generic Letter reconnendations, and 5) eliminate arbiguities inherent with the wording and format of the current TS.
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. The staff has concluded that the upgraded TSs will provide an equivalent set of requirements to the current TS. These changes will not adversely affect plant safety or have any adverse effect on the probability of any accident. Plant safety should be improved as additional restrictions, limitations and controls I
have been added to reflect the WSTS format review and modifications to the plant. No changes are being made in the types or amounts of any radiological effluents that may be released offsite during normal operation. There is also no significant increase in the allowable individual or cumulative occupational radiation exposure, i
With regard to potential nontdoiological impacts of reactor operatien with the upgraded TSs, the proposed changes to the TSs involve systems located within the restricted area as defined in 10 CFR Part 20. They do not affect nonradiological plant effluents and have no other environmental impact.
The radiological releases will not be greater than previously determined, nor does the proposed amendment otherwise affect radiological or nonradiological plant effluents, and has no other environmental impact. Therefore, the Commission concludes that there are no significant radiological or nonradiological environmental impacts associated with the proposed amendment.
L Alternatives to the Proposed Action:
Since the staff concluded that there are no significant environmental effects that would result from the proposed action, any 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 reduced operational flexibility.
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' - Alternative Use of Resources:
This action does not involve the use of any resources beyond the scope of resources used during normal plant operation.
Acencies and Persons Consulted:
The NRC staff reviewed the licensee's request and 6i0 not consult other agencies or persons.
FINDING OF NO SIGNIFICANT IMPACT:
The staff has determined not to prepare an environmental impact statenent for the proposed license amendment.
Based upon the foregoing environmental assessment, the staff concluded that the proposed action will not have a significant effect on the quality of the human environment.
For further details with respect to this action, see the applications for amenaments dated October 26, 1988, March 6, June 2, June 23, July 28, and August 4,1989 as. supplemented August 21 and Novenber 22,1989, July 31,1989 4
and July 28, 1989 which are available for public inspection at the Commission's Public Documer>t Room, the Gelman Building, 2120 L Street, N.W., Washington, D.C.
l and at the Russell Public Library,123 Broad Street, Middletown, Connecticut 06457.
Dated at Rockville, Varyland, this 14th day of February 1990.
i FOR THE NUCLEAR REGULATORY C0lTISSION I
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. Stolz, Direct Pr ject Directorate 1-4 ivision of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation
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