ML17138A922

Requests Addl Info Re Hydrologic Engineering of Proposed low-flow Augmentation Reservoir,In Order to Complete Des Suppl

ML17138A922
Person / Time
Site:	Susquehanna
Issue date:	10/29/1979
From:	Sells D Office of Nuclear Reactor Regulation
To:	Curtis N PENNSYLVANIA POWER & LIGHT CO.
References
NUDOCS 7911140133
Download: ML17138A922 (5)

Text

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g proposed low-flow augmentation regervoir'or the Susquehanna Steam Elec ric

Station, Enclosure 1 provides t[ie questions to which your response is requested.

In addition, please provide a llgeI'he approvals, permits and/or licenses which your company will need iq, ofder to construct ahd operate the resjrvojr.

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Preparation of the supplement=to'our Draft Environmental Statement on the Susquehanna Station concerning the reservoir wil;.'f.-not be completed prior to receipt of your response t0 %his request.

In tiie "event yau.are unable to provide the information by november lp, please advQe Paul H. Leech by telephone (301-492-8444) as to when it may>be expected.

Sincerely, P

a Onynal si wed by D.E.Sells Donald E. Sells, Acting 'Chief Environmental Projects Branch 2'-

Division of Site, Safety and Environmental Analysis s

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SUBJECT:

INFORMATION RE(VEST RELATIVE TG'POND HILL RESERVOIR Additional information iS needed irelative to h drolo ic edn ineerin of t e I

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1 Mr. irli1 liam Barberich Ml, Thomas M. Gervsky, Oirector Nucl ar Licensing Group Supervisor Bureau of Radiation Pro".ection Pennsylvania Power and Light Company Departnent of Environmental 2 i'lorth Ninth Street Resources Allentown, Pennsylvania 18101=--= - Commonwealth of Pennsylvania

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Box 2063 Jay Silberg, Esquire..

Harrisburg, Pennsylvania..

17120 Shaw, Pitman, Potts lti Trowbridge 18UO i~I Street, N.H.

.Mr. Rober't Bielo Washington, D.C.

2u036 Susquehann'a River Basin Commission

1,721 North Front Street Edward l'i. Nagel, Esquire Harri sburg,'ennsyl vani a 17102 Vice President, General Counsel and Secretary Pennsylvania Power and Light, Company 2 North Ninth Street Al1entown, Pennsyl vani a 18101 Mr. Robert i~I. Gallo U. S. Nuclear Regulatory Comimission P. 0.

Box 52 Shicgshinny, Pennsylvania 18655 Ms. Colleen Marsh 558 A R.

D. 4 Mount Top, Pennsylvania 18707 Dr. Judith, H. Johnsrud Co-Director, Environment 1 Coalition on Nuclear Power 433 Orlando Avenue State College, Pennsylvania 16801 Mrs. Irene Lemanoivicz The Citizens Against Nuclear Dangers P.

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Box 377 R.

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Berwick, Pennsylvania 18603 Gerald Schultz, Esquire Susquehanna Environmental Advocates 500 South River Stre t Wilkes-Barre, Pennsylvania 18702

Enclosure 1

HYDROLOGIC ENGINEERING INFORMATION REQUEST POND HILL RESERVOIR EVALUATION SUSQUEHANNA STEAM ELECTRIC STATION, UNITS 1 AND 2 DOCKET NUMBERS 50-387 AND 50-388 1.

Provide a description of the one-percent chance floodplain of Pond Hill Creek before, during,'and after the construction of the reservoir.

Include flood inundation maps for al] conditions.

Provide details of your methods of analyses.

Include your assumptions of and bases for pertinent parameters such as length and slope of drainage

basins, times of concentration, infiltration rates, rainfall amounts and distribution, Manning's "n" values, and any other assumptions or parameters used in the determinations of the f1oodp1 ains.

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Discuss the alterations of the floodplain, including the reaches downstream of the reservoir, that will result from the project.

2.

Provide a description, including a flood inundation map, of the one-percent chance floodplain of the Susquehanna River in the vicinity of the pumping plant.

Provide descriptions of the relationship of all structures and construction activities to the floodplain.

Include maps and drawings.

3.

For any structures or construction acti'vities on the one-percent chance floodplain, provide descriptions of their effects on the floodplain's flood handling capability.

Include details of your analyses.

Discuss

Enclosure 1

alternate locations off the floodplain and provide your bases for

-===any conclusions that alternate locations off the floodplain are not pract icab 1 e.

4.

Provide a discussion of the groundwater conditions at the reservoir site prior to construction.

Include a map showing groundwater contours and locating all nearby wells.

5.

Provide an analysis to justify your conclusion on page 4-4 that ground-water alterations that will result from the creation of the reservoir will be confined to the buffer zone owned by PPEL.

Include a map showing groundwater contours expected after the reservoir is filTed and equilibrium is reached.

6.

Provide information on all present uses of Pond Hill Creek.

If there are

none, so state.

7.

Justify the choice of 0.2 cfs for the conservation release to Pond Hill Creek during periods of drawdown or refilling of the reservoir.