ML19312C438
| ML19312C438 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 11/23/1977 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19312C433 | List: |
| References | |
| NUDOCS 7912130964 | |
| Download: ML19312C438 (2) | |
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UNITED STATES f'
NUCLEAR REGULATORY COMMISSION b2
, 7 WASHING TON, D. C. 20555 9v..../
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION SUPPORTING AMENDMENT NOS. 54, 54 AND 51 TO FACILITY LICENSE NOS. DPR-38, DPR-47 AND DPR-55 DUKE POWER CCMPANY OCONEE NUCLEAR STATION, UNIT N05. 1, 2 AND 3 DOCKET N05. 50-269, 50-270 AND 50-287 Introduction By ktter dated May 6,1977, Duke Power Corrpany (licensee) requested changes to the common Technical Specifications incorporated in the cperating licenses of Units Nos. 1, 2 and 3.of the Oconee Nuclear Station.
Discussion The proposed change to Technical Specification Table 3.1-3 defines i
provisions to. identify and/or account for radionuclides which may be present at low activity levels in' mixtures of gamma emitters.
Due to other radionuclides, which are present in the samples at much higher activity levels, it may not be possible to measure the activity level of some radionuclides at their specified sensitivity limit.
This change is considered necessary 'to resolve the problem of accounting for these low activity rhjionuclides.
The provisions of the dhange consist of re-identifying the gamma isotopic analysis to an analysis of principal gamma emitters in Table 4.1-3 and adding a footnote to account for low activity radionuclides.
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3 uation The proposed change to " replace the phrase " Gamma Isotopic Analysis" by the phrase " Principal Gamma Emitters" does not change (1) the requirement on the 1.icensee.to conduct a gamma analysis of the efflue.nts from the station, (2) the minimum frequency of the analysis or (3) the sensitivity limits of the analysis.
The proposed change provides that the required gamma analysis of radioactive material released in liquid and gaseous 0
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effluent from the station determine only the " principal" gamma emitters.
l The word " principal" is defined by the proposed footnote 5 to Table 4.1-3.
The principal gamma emitters are radionuclides which have a measured activity greater than their minimum detectable activity or which have a minimum detectable activity greater than 1% of the total measured activi ty.
This 1% criteria is smaller than the error associated.with measuring the activity itself.
These proposed changes will not allow the licensee to discharge greater concentrations or a higher total activity thar, the maximum allowed in the past and the amount discharged below these limits will not change as a result of this amendment. This change does not relieve the licensee from meeting the requirements of 10 CFR 20.
Consequently, there will be no appreciable effect on the environment or health and safety of the public from this action.
Based.on our review, we conclude that this change is acceptable.
Environnental Considerations l
We have determined that these amendments do not authorize a change in l
effluent types or total amounts nor an increase in power level and will not result in any significant environmental impact.
Having made this detennination, we have further concluded that these amendments involve an action which is insignificant from the standpoint of environmental impact and pursuant to 10 CFR 551.5(d)(4) that an environmental impact statement, negative declaration, or environmental impact appraisal need not be prepared in connection with the issuance of these amendments.
Conclusion We have concluded, based on the considerations discussed above, that:
(1) because the amendments do not involve a significant increase in the probability or consequences of accidents previously considered and do not involve a significant decrease in a safety margin, the amendments do not involve a significant hazards consideration, (2) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (3) such l
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activities will be conducted in. compliance with the Commission's regu';t:1or.s and the issuance of these amendments will not be inimical to the common defense and security or to the health and safety of the public.
J Dated:
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s 7 590-01 UNITED STATES NUCLEAR REGULATORY COMMISSION DOCKET NOS. 50-269, 50-270 AND 50-287 DUKE POWER COMPANY NOTICE OF ISSUANCE OF AMENDMENTS TO FACILITY OPERATING LICENSES The U. S. Nuclear Regulatory Commission (the Commission) has issued Amendment Nos. 54, 54 and 51 to Facility Operating License Nos.
OPR-38, DPR-47 and DPR-55, respectively, issued to Duke Power Company which revised the Technical Specifications for operation of the Oconee Nuclear. Station, Unit Nos. 1, 2 and.3, located in Oconee County, South Carolina. The amendments are effective within 30 days of date of issuance.
These amendments revise the Technical Specifications to identify or conservatively account for radionuclides.which may be present at low activity levels in mixtures of gamma emitters.
The application for the amendments complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and-the Commission's rules and regulations.
The Commission has made appropriate findings as required by the Act and the Commission's rules and regulations in 10 CFR Chapter I, which are set forth in the license amendments.
Prior public notice of these amendments was not required since the
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amendments.do not involve a significant hazards consideration.
The Commission has determined that the issuance of these amendments will not result in any significant environmental impact and the pursuant to 10 CFR 551.5(d)(4) an environmental impact statement or negative i
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'declaration and environmental impact appraisal need not be prepared in connection with the issuance of these amendments.
For further det&ils with respect to this action, see (1) the application for amendments dated May 6,1977,(2) Amendment Nos. 54,
54 and 51 to License Nos. DPR-35, DPR-47 and DPR-55, respectively, and (3) the Commission's related Safety Evaluation.
All of these items are.available for public inspection at the Comission's Public Document Room,1717 H Street, N..W., Washington, D. C. and at ths Oconee County Library, 201 South Spring Street, Walhalla, South Carolina 29691.
A copy of items (2) and (3) may be obtained upon request addressed to the U. S. Nuclear Regulatory Commission, Washington, D. C.
- 20555, Attention:- Director, Division of Operating Reactors.
Dated at Bethesda, Maryland, this 23rd day of November 1977.
FOR THE Nur' EAR REGULATORY COMMISSION by@'l0V A. S hwencer, Chief Operating Reactors Branch di Division of Operating Reactors k
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