ML20215B657
| ML20215B657 | |
| Person / Time | |
|---|---|
| Site: | 05000000, Diablo Canyon |
| Issue date: | 05/15/1985 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML082840462 | List:
|
| References | |
| FOIA-86-197 NUDOCS 8610080256 | |
| Download: ML20215B657 (8) | |
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING AMENDMENT NO.
TO FACILITY OPERATING LICENSE NO. DPR-80 DIABLO CANYON UNIT 1 PACIFIC GAS & ELECTRIC COMPANY DOCKET NO. 50-275
1.0 INTRODUCTION
To comply with Section V of Appendix 1 of 10 CFR Part 50, the Pacific Gas and Electric Company (PG&E) has filed with the Commission plans and proposed Radiological Effluent Technical Specifications (RETS) developed for the purpose of keeping releases of radioactive materials to unre-stricted areas during normal operations, including expected operational occurrences, as low as is reasonably achievable.
PG&E filed this information with the Commission by letter dated April 24, 1985, which requested changes to the Technical Specifications appended to Facility Operating License No. DPR-80 for Diablo Canyon Unit 1.
The proposed technical specifications update those portions of the technical specifications addressing radioactive waste management and make them consistent with the-current staff positions as expressed in NUREG-0472.
These revised technical specifications would reasonably assure com-pliance, in radioactive waste management, with the provisions of 10 CFR Part 50.36a, as supplemented by Appendix I to 10 CFR Part 50, with 10 CFR Parts 20.105(c), 106(g), and 405(c); with 10 CFR Part 50, Appendix A, General Design Criteria 60, 63, and 64; and with 10 CFR Part 50, Appendix B.
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2.0 BACKGROUND
AND DISCUSSION 2.1 Standard Radiological Effluent Technical Specifications NUREG-0472 provides radiological effluent technical specifications for pressurized water reactors which the staff finds to be an acceptable standard for licensing actions.
Further clarification of these accept-able methods is provided in NUREG-0133, " Preparation of Radiological Effluent Technical Specifications for Nuclear Power Plants." NUREG-0133 describes methods found acceptable to the staff of the NRC for the calculation of certain key values required in the preparation of proposed radiological effluent technical specifications for light-water-cooled nuclear power plants. NUREG-0133 also provides cuidance to licensees in preparing requests for changes to existing radiological effluent technical specifications for operating reactors.
It also describes current staff positions on the nethodology for estimating radiation exposure due to the release of radioactive materials in effluents and on the administrative control of radioactive waste treatment systems.
The a_bove NUREG documents address all of the radiological effluent technical specifications needed to assure compliance with the guidance requirements provided by the regulations previously cited. However,
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- alternative approaches to the preparation of radiological effluent technical specifications and alternative radiological effluent technical specifications may be acceptable if the staff determines that the alternatives are in compliance with the regulations and with the intent of the regulatory guidance.
2.2 Plant Specific Background In three different submissions,2,3 PG&E has formally requested 1
Technical Specification changes that would upgrade the Diablo Canyon-1 RETS to be in conformance with the latest NRC staff positions. The 1
first submission was used as the starting point for the development of acceptable RETS for Diablo Canyon-2. After a number of discussions between PG&E staff and NRC staff a final set of RETS was developed for Diable Canyon-2 which met the intent of current NRC guidance.
i These RETS were included as part of the published Diablo Canyon-2 Technical Specifications.4 Partway through this development for Diablo Canyon-2, PG&E made a 2
second RETS submission for Diablo Canyon-1 that contained some of 1
the original markup pages from the earlier submission, and some of the retyped pages from the Diablo Canyon-2 RETS that were in process.
Further discussion with PG&E resulted in an agreement to make a final submission for Diablo Canyon-1 once the Diablo Canyon-2 RETS had been accepted technically.
3 PG&E then formally submitted on April 24, 1985 proposed changes to their RETS for Diablo Canyon Unit 1 to make them consistent with the RETS for Diablo Canyon Unit 2, which in turn have been developed to be consistent with current regulatory guidance.
3.0 EVALUATION The proposed changes to the Diablo Canyon Unit 1 RETS as presented in the April 24, 1985 submission were found to meet the intent of the NRC staff's model RETS for PWRs, NUREG-0472, Revision 2, February 1,1980, and therefore are acceptable.
3.1
SUMMARY
The proposed changes to the radiological effluent technical specifi-cations for Diablo Canyon Unit I have been reviewed, evaluated, and found to be in compliance with the requirements of the NRC regulations and with the intent of NUREG-0133 and NUREG-0472 (Diablo Canyon Unit 1 I
is a pressurized water reactor) and thereby fulfill all the requirements of the regulations related to radiological effluent technical specifi-cations.
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, The proposed changes will not remove or relax any existing requirement related to the probability or consequences of accidents previously considered and do not involve a significant hazards consideration.
The proposed changes will not remove or relax any existing requirement needed to provide reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner.
The staff, therefore, finds the proposed changes acceptable.
4.0 ENVIRONMENTAL CONSIDERATION
This amendment involves changes in the installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20 and changes in inspection and surveillance requirements. The staff has determined that the amendment involves no significant increase in the amount and no significant change in the types of any effluents that may be released offsite and that there is no significant increase in indi-vidual or cumulative occupation radiation exposure. The Commission has previously issued a proposed finding that this amendment involves no significant hazards consideration and there has been no public comment on such finding. Accordingly, this amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR Section
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- 51.22(c)(9). Pursuant to 10 CFR 51.22(b) no environmental impact statement or environmental assessment need be prepared in connection I
i with the issuance of this amendment.
l 5.0 GENERAL CONCLUSION We have 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;-
and (2) such activities will be conducted _in compliance with the Commission's regulations and the issuance of this amendment will not be inimical to the common defense and security or the health and safety of.the public.
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- FOOTNOTES
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1 PG&E Letter No. DCL-85-028 from J. D. Shiffer to H. R. Denton, dated January 30, 1985, requesting changes to Technical Specifications for Diablo Canyon Unit 1.
2.
PG&E Letter No. DCL-85-148 from J. D. Shiffer to H. R. Denton, dated April 12, 1985, requesting changes to Radiological Effluent Technical-Specifications for Diablo Canyon Ureit 1.
3.
PG&E Letter No. DCL-85-164 from J. D. Shiffer to H. R. Denton, dated April 24,'1985, requesting changes to Radiological Effluent Technical
. Specifications for Diablo Canyon Unit 1.
4.
Technical Specifications, Diablo Canyon Nuclear Power Plant, Unit No. 2, NUREG-1132, April, 1985.
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cc: w/encls:
D. Muller C. Willis B. Buckley W. Meinke C. Nichols H. Schierling cc: w/o encls.
R. Bernero W. Gamill F. Congel G. Knighton
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