ML19329A196
| ML19329A196 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 02/03/1977 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19329A193 | List: |
| References | |
| NUDOCS 7912300226 | |
| Download: ML19329A196 (3) | |
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SAFETY EVALUATION OCONEE UNITS 1, 2 AND 3 Discussion A
item 5 of Duke Power Company's letter requesting an amendment to Ap Technical Specifications proposed changes in the reporting requirements for anomalous measurements of radioactivity in environmental monitoring The original request has been modified (and Duke Power has agree samples.
by the NRC staff.
to these modifications) to incorporate recommendations The amended proposed changes would:
Delete the 30-day reporting requirement when a measured level of rad 1) d with activity in any environmental medium other than those ass _ociate radioiodine exceeds 4 times the control station value; Change the reporting requirement level from 10 times control to 50 2) idge control for samples in the aquatic environment upstream of the br l i ea).
on Highway 183 over the Keowee River (within the prompt di ut on ar Evaluation _
The proposed deletion of a reporting requirement associated with a 1) dium measured level of radioactivity in en environmental sampling me
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NRC greater than 4 times the control value is da keeping with current In many instances the variation in guidelines, Regulatory Guide 4.8.
background levels could result in measurements that exceed 4 Also, these levels are of negligible dose consequence; control value.
hence, the report of such levels does not provide any useful or m ful data.
g*
- 7912300 M g
(b The proposed change of reporting requirement level from 10 times 2) control to 50 times control for aquatic samples within the prompt dilution area of the Oconee discharge does not reduce the effective-These samples are taken coincident ness of the monitoring program.
with radioactive effluent releases.
Consequently the levels of radio-activity measured art representative of the effluent release level after a prompt dilution in the Keowee River and are expected to be Increasing the report greater than 10 times control station values.
level from 10 to 50 times control values provides adequate assurance that anomalous levels of radioactivity in aquatic samples are reported and eliminates the reporting of levels that are expected due to sampling method (coincident with effluent release) and location (prompt dilution area).
Environmental Considerations We have determined that the amendment does not authorize a change in effluent types or a significant increase in the total amounts of effluents nor an increase in power level and will not result in any significant Having made this determination, we have further environmental impact.
concluded-that the amendment involves an action which is insignificant-
'from the standpoint of environmental impact and pursuant to 10 CFR 851.5(d)(4), that an environmental statement, negative declaration, or environmental impact appraisal need not be prepared in connection with the issuance of this amendment.
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... 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 to the health and safety of the public.
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