ML19329E363

Forwards IE Circular 77-02A, Potential Heavy Spring Flooding. Action Required

ML19329E363
Person / Time
Site:	Midland
Issue date:	02/18/1977
From:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:	Howell S CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
References
NUDOCS 8006120673
Download: ML19329E363 (1)

Text

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-= p RLES UNITED STATES NUCLEAR REGULATORY COMMISSION REGloN 111 799 ROOSEVELT ROAD CLEN ELLYN, ILLINOIS 60137 FEB 181977 Consumers Power Company Docket No. 50-329 ATTN: Mr. Stephen H. Howell Docket No. 50-330 Vice President 1945 West Parnall Road Jackson, Michigan 49201 Centlemen: The enclosed Circular No. 77-02A is forwarded to you for information and action. If there are any questions related to your under-standing of the actions indicated, please contact this office. Sincerely, ab d~ f2 James G. Keppler-Regional Director

Enclosure:

IE Circular No. 77-02A \\ccw/ encl: THIS DOCUMENT CONTAINS entral Files IE Files POOR QUAUTY PAGES PDR Local PDR Ronald Callen, Michigan Public Service Comission Dr. Wayne E. North Myron M. Cherry, Chicago l oV37109 + A% .g ^ 8006120 [73 O [cp

~ ~ y -- s IE Circular No. 77-02A February 18, 1977 FCTIENTIAL HEAVY SPRING FLOODING DESCRIPTION OF G m bnSTANCES: The purpose of this circular is to inform you that the National Weather Service has predicted that heavy spring flooding in the area from the Missouri River castward is likely to occur. Ice covers most of the major river and lake systems in this area and the accumulation of ice and snow in the eastern portion has fur-ther increased the flooding pctential. In some areas the poten-tial spring flooding may equal or exceed floods.of record. The degree of flooding is dependent upon the rate of warming trends, ice breakup rates and che occurrence of spring rains. The two enclosed figures from the National Weather Service indicate the principal frozen rivers and areas of greatest flood potential in the northeast and upper midwest. There will also be the possi-bility of flooding on the Mississippi River below Cairo, Illinois dependent upon runoff in its tributaries. The enclosed maps do not address the potential of the associated effects of ice impact and blockage or additional precipitation on flood related concerns. ACTION TO BE TAKEN BY LICENSEE: 9 It is recommended at this time that licensees receiving this circular a consider the following items in preparation for potential flooding and the associated effects at facilities under construction. Such condi-tions could affect safety related structures, systems and components as a result of:

1. Safety related items aircady in-place and not fully protected.

2. Safety related items in site storage including record _ vaults containing documentation of safety related items.

3. Effects of any interconnection to operating units.

At this early date, it is not possible to predict the specific ti=e of occurrence, location, or extent of flooding or associated effects. Forecasts regarding flooding or icing can be obtained from the public service forecasters of the U. S. Weather Service Forecast Center in your state. These offices are generally open 24 hours per day. The offices (in the subject area) are advised of river conditions by River Forecast Centers located in Cincinnati, OH: Harrisburg, PA: Hartford, CT; and Kansas City, M0. k4) a6 0 O f' ' h e' /)g,' f

m IE Circular No. 77-02A' February 18, 1977 This circular is provided for your information and requires no written reply. Approval of NRC requirements for reports concerning possible generic problems has been obtained under 44 U.S.C. 3152 from the U. S. Ceneral Accounting Office. (CAO Approval B-180255 (R0072), expires 7/31/77). " Attachments: ~ Two Maps from the National Weather Service h J 9 e

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