ML19344E495

Forwards Request for Addl Info Re Floodplain Mgt Per Executive Order 11988.Response Requested by 800808

ML19344E495
Person / Time
Site:	McGuire, Mcguire
Issue date:	08/06/1980
From:	Tedesco R Office of Nuclear Reactor Regulation
To:	Parker W DUKE POWER CO.
References
NUDOCS 8009020122
Download: ML19344E495 (5)

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o UNITED STATES

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NUCLEAR REGULATORY COMMISSION g

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C WASHINGTON, D. C. 20555

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t AUG 6 19 o 0 Docket Nos.: 50-369 and 50-370 Mr. William O. Parker, Jr.

Vice President - Steam Production Duke Power Company Post Office Box 33189 422 South Church Street Charlotte, North Carolina 28242

Subject:

Information - Floodplain Management (McGuire Nuclear Station, Units 1 & 2)

In order for us to complete our evaluation of the floodplain issues related to Executive Order 11988, we require some additional information.

This information is described in the enclosure.

We request that this information be provided by August 8,1980. The.

enclosure has previously been provided to your staff.

Sincerely, MitSJ

~

Robert L. Tedesco, Assistant Director for Licensing Division of Licensing

Enclosure:

Request for Afditional Information cc w/ enc 1:

See next page S

8 009 o e 0/,29-

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Mr. William O. Parker, Jr.

Vice President, Steam Producticn Duke Power Cocpany P. O. Box 2178 422 South Church Street Charlotte, North Carolina 28242 cc: Mr. W. L. Porter David Flesichaker, Esq.

Duke Pcwer Company 1735 Eye Street, N. W.

P. O. Box 2178 Suite 709 422 South Church Street Washington, D. C.

20006 Charlotte, North Carolina 28242 Richard P. Wilson, Esq.

Mr. R. S. Mcward Assistant Attorney General Power Systems Division State of South Carolina Westinghouse Electric Corporation 2500 Bull Street P. O. Box 355 Columbia, South Carolina 29201 Pittsburgh, Pennsylvania 15230 Mr. E. J. Keith EDS Nuclear Incorporated 220 Montsc ery Street San Francisco, California 94104 Mr. J. E. Houghtaling NUS Corporation 2536 Countryside Boulevard Clearwater, Florida 33515 Mr., Jesse L. Riley, President The Carolina Environmental Study Group 854 Henley Place Charlotte, North Carolina 28207 J. Michael McGarry, III, Esq.

Debevoise & Liberman 1200 Seventeenth Street, N. W.

Washington, G. C.

20036 Rober t M. La:o, Esq., Chairman

'd-i Atomic Safety and Licensing Board I

U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Dr. Ecceth A. Luebke Atomic Safety-and Licensing Board U. S. Nuclear Regulatory Commission r

Washington, D. C.

20555 Dr. Cadet H. Hand, Jr., Direc' tor Bodega Marine Lab of California P. O. Box 247 Bodega Bay, California 94923

Mr. William O. Parker, Jr.

3-cc: David Flesichaker, Esq.

1735 Eye Street, N. W.,

Suite 709 Washington, D. C.

20005 Richard P. Wilson, Esq.

Assistant Attorney General State of South Carolina 2600 Bull Street Columbia, South Carolina 29201 Office of Intergovern. ental Relations 116 West Jones Street Raleigh, North Carolina 27603 County Manager of Mecklenburg County 720 East Fourth Stree:

Charlotte, North Carolina 28202 U. S. Envireneental Protection Agency ATTN:

EIS Coordinator Region IV office 345 Courtland Street, N. W.

Atlanta, Georgia 30308 we g

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ENCLOSURE HYDROLOGIC r.:;S!!;t LRIi;G C.t.:n.RIC QUEST 10:iS RELATif;G TO E.O.1198S n EPLAlu MA*;AGLT;T FOR PLANTS NEAR COMPLLTION

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Definition (from Executive Order 11988 Floodplain Management)

Floodplain _L The lowland and relatively flat areas adjoining inland and coastal waters including floodprone areas of offshore islands, including at a minimum that area subject to a one percent or greater chance of ficoding in any given year.

1.

Provide descriptions of the floodplains of all water bodies, including inter-mittant water courses; within or adjacent to the site. On a suitable scale map provide delineations of those areas that will be flooded du.'ing the one-percent chance flood.in the absence of plant effects (i.e., pre-construction floodplain).

2.

Provide details of the methods used to detennine the floodplains in response to 1. above.

Include your assumptions of and bases for the pertir,ent parameters used in the computation of the one-percent flooo and water elevation.

If studies approved by Flood Insurance Adiainistration (FIA), Housing and Urban Developy.ent (HUD) or the Corps of Engineers are available for the site or adjoining area, the details of analyses need not be supplied. You can instead provide the' reports from which you obtained the floodplain infor-mation.

3.

Identify, locate on a map, and describe all structures and topographic alterations in the floodplains.

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Discuss the hydrologic effects of all ite.as identified in 3. above.

Discuss the potential for altered ficod ficws and levels, both upstream and d::n-stream.

Include the potential effect of debris accumulating on the plant structures.

Additionally, discuss the effects of debris generated from the site on downstream facilities.

5..

Provide the details of your analysis used in response to 4. above.

The level of detail is similar to that identified in item 2. above.

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