ML20037B463
| ML20037B463 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 02/04/1975 |
| From: | Youngblood R Office of Nuclear Reactor Regulation |
| To: | Brian Lee COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20037B462 | List: |
| References | |
| NUDOCS 8010011014 | |
| Download: ML20037B463 (3) | |
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Additional information is required by the staff to proceed with the *
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review of the proposed Appendix B. Environmental. Technical Specifications
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(ETS) for Dresden Units 2 and 3, received on Movember 18r 1974.
In the Final Environmental Statement, some of this infor::ation was requested as soon as it became available. Infon:ation = ore directly pertinent to the ETS was also discussed infon:: ally with your staff in Cecember,1974 and January,1975.
It is our understanding that the additional infor:::ation will bet su::mitted in February,1975. To avoid misunderstanding, the.
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An explanation of the assu=otions, theery, model and =easurements '
involved in the derivation of the curves in Fiscre 2.1.1 (Page 5) of the !ieverloer IS,1974 proposed ETS.
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A detailed explanation of where and hcw the dewe.strean temperature
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TL (Page 3) is to be seasured. The first equation en Page 3 is valid only if TL represents the dctmstreaa river tagerature after complete mixing.
If TL is measured near the surface before couplate i
c:ixing, high values cf ambient terperature and low values of AT '-
will be esti:ated.
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Available data on the geccetry of the thermal plu=es in Dresden Pool at the lowest river flows with respect to vertical stratification and the fraction of the cross-section of tha rivar occupied by the portions of the plune more than 5'F above ambient temperature.
4 The latest design information on the proposed discharge for Units 1, 2 and 3.
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Recent data en chlorine analysis of Unit 1 and Units 2 and 3 discharges including sar.1pling locations, time between chlorination and sagling, ti::e between san:pling and analysis, and analytical methods.
The staf"s intent is to issue the Appendix B ETS for Dresden 2. and 3 'if the near-future.. In the absence of the information requested above, the '
staff nay be forced to make ccnservative and probably less realistic...
assu=ptions which could result in unduly restrictive specifications.. +.
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PLANT NAME: Dresden Units 2 & 3 WW 6
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PLANS BOYD STELLO M. MAIGRET (L)
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