ML19317G485
| ML19317G485 | |
| Person / Time | |
|---|---|
| Site: | Crystal River, 05000303  |
| Issue date: | 02/28/1968 |
| From: | Caldwell J ARMY, DEPT. OF |
| To: | Boyd R US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 8003160101 | |
| Download: ML19317G485 (3) | |
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4 OF DOCUMENT DATE RECEIVED NOa Dept of ArDer-Losstal mgring 2-26-68 2-26-6S 690 assearch Center, Wasa. D.C.
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2W6 26 February 1968
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'Mr., Roger S. Boyd
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Dear Mr. Boyd:
Reference is made to your letter of 28 August 1967, and our letters of 16 October 1967 and 22 November 1967, regarding Dockets, Nos.' 50-302
- and' 50-303, Florida Power Corporation's Crystal River Units 3 and 4 Nuclear
= Generating Plant and Amendments I and 2 of the application.
Mr. R. A.
Jachowski of the CERC staf f has reviewed this application f rom the viewpoint of the storm surge, design wave height and wave period, wave runup and water
. level setdown (minimum tide level) as associated with the Probable Maximum Hurricane (PMH).and related to the plant site.
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The design water level of 21.4 feet above MLW, based on the applicant's PMH. parameters,; appears valid.although final decision on the acceptance of these assumptions should await the results of a study of the PMH parameters for.the: Atlantic and Gulf Coasts of the United States currently being prepared by the.Hydrometeorological Branch of the U. S. Weather Bureau.
The-PMH parameter study was requested by this office and approved by the Office,-Chief cf' Engineers'(Corps of Engineers) subsequent to our letter of 22 November 1967.
.-The~ data submitted in the Amendments regarding the wave runup model studies and-the water level.setdown analysis provides a reasonable' approach to the problem.
Based on the design water level of 21.4 feet about MLW, the (plant base elevation of (18.5 feet-.FPC datum (30.5 feet above MLW) provides the necessary. height in elevation to prevent significant wave overtopping,
- but'any significant increase in the PMH parameters can affect
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.a level, wave'runup and overtoppi'ng levels.
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CEREN 26 Februtry 1968 Mr. Roger S. Boyd it-is therefore our opinion that the applicant (Florida Power Corporation) should-be required to re-evaluate the selection of maximum design water level, wave runup, and wave overtopping based on the results of the U. S.
Weather Bureau study of the Probable Maximum Hurricane Parameters when they become available, about i May 1968.
Sincerely yours,
.ToK l' l _,. % ~.Q
,[...JOSdPH M. CALDWELL Acting Director 2
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