ML20195B916

Safety Evaluation Supporting Amend 178 to License DPR-35

ML20195B916
Person / Time
Site:	Pilgrim
Issue date:	11/10/1998
From:	NRC (Affiliation Not Assigned)
To:
Shared Package
ML20195B896	List: ML20195B893 ML20195B916
References
NUDOCS 9811160312
Download: ML20195B916 (2)

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0 UNITED STATES l

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NUCLEAR REGULATORY COMMISSION i

WASHINGTON, D.C. 20666-0001

...S SAFETY EVALUATIOl4 BY THE OFFICE OF NUCLEAR REACTOR REGULATION l

RELATED TO AMENDMENT NO. l'18TO FACILITY OPERATING LICENSE NO. DPR-35 BOSTON EDISON COMPANY PILGRIM NUCLEAR POWER STATION DOCKET NO. 50-293 i

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1.0 INTRODUCYl.QN l

By letter dated June 26,1998, the Boston Edison Company (BECo or the licensee) submitted a request to modify the Pilgrim Nuclear Power Station (PNPS) Technical Specifications (TS). The requested changes would make corrections to Table 3.1.1 item " Turbine Control Valve Fast Closure", and Table 3.2.C.1 Item " Mode Switch in Shutdown". Section 3.3.B.3.b.1 will be changed as approved by the NRC in Amendment 39. Bases Section 3/4.7 will be revised to reflect new analysis and delete repetitive material.

2.0 EVALUATION The licensee requested a change to the PNPS TSs in accordance with 10 CFR 50.90. The proposed revisions are described and evaluated below-2.1 TABLE 3.1.1. " REACTOR PROTECTION SYSTEM (SCRAM) INSTRUMENTATION REQUIREMENTS For Table 3.1.1 item " Turbine Control Valve Fast Closure," a typographical error of "psit" was introduced in Amendment 169. It will be corrected to read "psig". The staff concludes that this change is administrative in nature and, therefore, the proposed TS change is acceptable.

2.2 TABLE 3.2.C.1. INSTRUMENTATION THAT INITIATES ROD BLOCKS" For Table 3.2.C.1 item " Mode Switch in Shutdown," a typographical error occurred when this item was added in Amendment 169. This item was incorrectly added to two pages of the table instead of only on one page. This item will be removed from page 3/4.2-20. In addition, the correct operable channels per trip function is two channels per trip function as stated on 3/4.2-21, not one channel per trip function as stated on page 3/4.2-20. The staff concludes that this change is administrative in nature and, therefore, the proposed TS change is acceptable.

2.3 SECTION 3.3.B.3.b.1. " REACTIVITY CONTROL" Section 3.3.B.3.b.1 has been changed to read from "when the reactor is critical and below j

10%.." to "when the reactor is critical and below 20%..". The licensee states that this change L

was approved by the NRC in Amendment 39 but was inadvertently not revised in the current copy of Technical Specifications. The staff has confirmed that Amendment 39 revised this number and concludes that this change is administrative in nature and, therefore, the proposed TS change is acceptable.

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3.0 BASES SECTION The licensee has revised BASES Section 3/4.7, " Containment Systems," to reflect changes approved by the NRC via Amendments 167,172 and 173. In addition, Groups 1,2 and 3 isolation signals are being deleted from page B 3/4.7-4 because identicalinformation is provided on page B 3/4.7-5. The BASES sections will be changed to reflect the revised TSs and the j

changes are implemented and controlled by Regulatory Affairs Work Instruction 3.04-01, " Changes to Technical Specifications."

4.0 STATE CONSULTATION

in accordance with the Commission's regulations, the Massachusetts State Official was notified of the proposed issuance of the amendment. The State official had no comments.

5.0 ENVIRONMENTAL CONSIDERATION

The amendment changes a requirement with respect to installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20. The NRC staff has determined that the amendment involves no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and that there is no significant increase in I

individual or cumulative occupational radiation exposure. The Commission has previously issued a proposed finding that the amendment involves no significant hazards consideration, and there has been no public comment on such finding (63 FR 50933). Accordingly, the amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9). Pursuant to 10 CFR 51.22(b) no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendment.

6.0 CONCLUSION

The Commission has concluded, based on the considerations discussed above, that: (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendment will not be inimical to the common defense and security or to the health and safety of the public.

Principal Contributor: A. Wang Date: November 10.., 1998

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