ML17275B033

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Forwards Request for Addl Des Info Re Hydrologic & Geotechnical Engineering Branch Review.Requests Response by 810529 to Keep Aug 1981 Schedule
ML17275B033
Person / Time
Site: Columbia Energy Northwest icon.png
Issue date: 05/05/1981
From: Tedesco R
Office of Nuclear Reactor Regulation
To: Ferguson R
WASHINGTON PUBLIC POWER SUPPLY SYSTEM
References
NUDOCS 8105210252
Download: ML17275B033 (10)


Text

Docket No. 50-397 Washington Public Supply System ATTN:, fir. R. L. Ferguson Managing Director 3000 George Mashfngton llay Richland, l<ashfngton 99352 MAY DISTRIBUTIRO ocket Fil e N

Local PDR LB¹2 File

Attorney, OELD DEisenhut RPurple RTedesco ASchwencer RAuluck MService IE(3)

RVollmer TMurley DRoss RHartfield, VNoonan LRib GStaley bccs:

NSIC TERA TIC ACRS (16)

MPA

Dear Mr. Ferguson:

SUBJECT:

WNP-2 DES - REqUEST FOR ADDITIONAL INFOR1ATION Y Zo ~9S>-

~'> NU+IQfEBCIEATDBT lCOIIWIIISION As a result of our review of your application fo} operatfng license, ffnd that we need additional informatfon regarding the MNP-2 DES.

The specffic information required fs as a result of the Hydrol'ogfc and Geotechnfcal Engineering" Branch/is review and is listed in the Enclosure.

In order to keep our August 1981 schedule for Draft Environmental Statement for lJNP-2, we will need'responses to the enclosed request by May//29, 1981. If you cannot meet this date.

please inform us within seven days after receipt of this letter of the date you plan to submit your responses so that we may review our schedule for any necessary changes.

Please contact Raj Auluck, Licensing Project Manager, ff you desire any discussion or clarification of the enclosed report.

Sincerely, Original signed by

)3. 4. La~blcos g, Robert L.

edesco, Assistant Director for Licensing Division of Licensing

Enclosure:

As stated cc w/enclosure:

See next page SX05a>O SP OFFICE/

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Cy nO pN W**y4 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 Docket No. 50-397 MAV 5198)

Washington Public Supply System ATTN:

Mr. R. L. Ferguson Managing Director 3000 George Washington Way Richland, Washington 99352

Dear Mr. Ferguson:

SUBJECT:

WNP-2 DES - REQUEST FOR ADDITIONAL INFORMATION Please contact Raj Auluck, Licensing Project Manager, if you desire any discussion or clarification of the enclosed report.

Sincerely,

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. Tedesto, Assistant Director for Licensing Division of Licensing

Enclosure:

As stated As a result of our review of your application for operating 'license, we find that we need additional information regarding the WNP-2 DES.

The specific information required is as a result of the Hydrologic and Geotechnical Engineering Branch s review and is listed in the Enclosure.

In order to keep our August 1981 schedule for Draft Environmental Statement for WNP-2, we will need responses to the enclosed request by May 29, 1981.

If you cannot meet this date, please inform us within seven days after receipt of this letter of the date you plan to submit your responses so that we may review our schedule for any necessary changes.

cc w/enclosure:

See next page

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Mr. R. L. Ferguson Managing Director Washington Public Power Supply P. 0.

Box 968 3000 George Washington Way Richland, Washington 99352 cc:

Richard g. guigley, Esq.

WPPSS P. 0.

Box 968 Richland, Washington 99352 Nicholas Lewis, Chairman 820 East Fifth Avenue Olympia, Washington 98504 Mr. 0.

K. Earle Licensing Engineer P. 0.

Box 968 Richland, Washington 99352 Mr. Albert D. Tooth Resident Inspector/WPPSS-2 c/o U. S. Nuclear Regulatory Commission P. 0.

Box 69 Richland, Washington 99352 Nicholas Reynolds, Esq.

Debevoise 8 Liberman 1200 Seventeenth

Street, N.

W.

Washington, D.

C.

20036

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ENCLOSURE HYDROLOGIC E!,'GINEEP, I ffG GENERIC flUEST IONS RELATING TO E. 0.

11988 FLOODPLAIN f'"'.llAGD'aENT FOR PLANTS liEAR COhP!.ETION Definition {from Executive-Order 11988 Floodplain f'anagement)

F1oodj>lain:

The ioeiand and relative'ly flat areas adjoining inland and coastal;;aters including floodprone areas of offshore islands, inc1uding at a minimum that area subject to a one percent or greater chance of flooding in any given year.

Provide descriptions of the floddplains 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 during the one-percent chance f'tood. in the absence of plant effects.{i.e., pre-construction

'f1oodpl ain).

371.o4E

. Provide details of the methods-used io determine the floodplains in response to l. above.

Include your assumptions of and bases for the pert;nent parameters used in the computation of the one-percent flood flow and wati r elevation.

If sou'dies approved by Flood Insurance Administration (FIA), Housing a

and Urban Development (HUD) or the Corps of Engineers are available for the 1

site or adjoining area, the details of analyses need not be supplied.

You can instead provide the'reports from which you obtained the f1oodplain infor-mation.

371.05E Identify, locate on a map, and describe all structures and topographic alterations jn the floodplains.

E1

a~ i 371.06E Discuss the hydrologic effects of all items identified in 3. above.,

Discuss

'I the potential for altered flood flows and levels, both upstream and do;;n-stream.

Incl'ude the potential effect of debris accumulating on the plant structures.

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

371.07E 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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