ML19317F157
| ML19317F157 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 08/22/1977 |
| From: | Markee E Office of Nuclear Reactor Regulation |
| To: | Jay Collins Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8001080878 | |
| Download: ML19317F157 (6) | |
Text
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DISTRIBUTION:
DOCKET FILES (50-269)
AUG 2 21977 NERRDG
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4 HEHORANDUM FOR: John Collins, Chief. Effluent Treatment Systems Branch, DSE l
FROM Earl H. Markee, Jr., Leader, Meteorology Section, HMB THRU L. C. Hulman, Chief. Hydrology-Meteorology Branch, DSE f
SUBJECT:
REVIEW OF ADDITIONAL APPENDIX I INFORMATION FOR OCONEE I
We have briefly reviewed the informal response from the licensee provided with your 7/28/77 note. We re:nain concerned about the effect f'
of having the lower temperature sensor at only 1.5m above the ground for considerations of releases as partially elevated. The licensee has indicated that this lower temperature sensor is being moved to an elevation of 10m above the ground, although the expected date of this move was not identified. Because of the untertainties associated with the available data, we have two courses of action that could be pursued. The first would be to perform a conservative evaluation assuming that all releases shot.1d be' considered as ground-level.
The second would be to perform an interim evaluation using the availmkle data and the partially elevated release as proposed by the licensee, followed by a confirmatory evaluation after one annual cycle of data, with acceptable data recovery, has been cot:plsted with measurement of vertical temperature gradient between l
the 10m and 46m levels.
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Earl H. Markee, Jr., Leader Meteorology Section Hydrology-Mateorology Branch t
i Division of site Safety and Environmental Analysis cct L. Hulman i,
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I John Collins, Chief, Effluent Treatment Systems Branch HEMD UM FORs Earl H. Markee, Jr., Leader, Ifeteorology Section
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Hydrology-Mateorology Branch L. C. Bulman, Chief. Eydrology-Meteorology Branch 2HRU:
l EW OF AIX)1TIONAL APPENDII I INFORMATION FOR O
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the infornsal response from the licensee Wo have briefly revi We remain concerned about the effect 4
provided with your 7/28 ure sensor at only 1.5m above the ground note.
of having the lower tempe s as partially elevated. The licensee 1
for considerations of rel has indicated that this lowo yeaperatura sensor is being moved to, c an elevation of los above the believe that we could initiate a f
this move was not identified.
this time using the available conservative interim evaluation a because.of the uncertainties Howeve metookological information.
believe that the interim evalua-t associated with the available data,)
evaluation after one annual tion should be followdd by a confirmat has been completed with cycle of data, with acceptable data roc t between the 10m and 46m measurement of vertical temposature gradi levela..
DISTRIBUTION Docket File 50-269 NRR Rdg 7.arl B.11arkee Jr., Leader DSE Rdg Heteorology See on HMB Rd8 Hydrology-Meteoro gy Branch Division of Site S ety and l
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