ML20050D146
| ML20050D146 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 03/12/1982 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Bauer E PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| References | |
| NUDOCS 8204120069 | |
| Download: ML20050D146 (7) | |
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TERA MAR 12 1982 LB#2 File NSIC DEisenhut/RPurpl e NRC PDR RTedesco Local PDR ASchwencer ACRS (16)
HAbelson Me,_. - _. - ' -t fles. 50-352/353 : 17 EHyl ton Lewis, OELD OI&E Region I Resident Inspector SHanauer RMattson
,j Mr. Edward G. Bauer, Jr.
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Vice President & General Counsel RVollmer NEC %
Philadelphia Electric Company RHartfield, MP g e
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2301 Market Street Philadelphia, Pennsylvania 19101 T
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Dear Mr. Bauer:
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Subject:
Request for Additional Information - Limerick N
e The Hydrologic Section of the Hydrological and Geotechnical Engineering Branch has reviewed pertinent sections of the FSAR. This review has indicated a need for the additional information delineated in Enclosure 1.
Please provide us, within 7 working days from receipt of this letter, with the date(s) on which you plan to respond to the above. Any questions concerning this information requst should be directed to Dr. Harvey Abelson (301)492-9774, the Licensing Project Manager.
Sincerely, A. Schwencer, Chief Licensing Branch No. 2 Division of Licen ing s
Encl oture:
As stated cc: See next page on:o reportinc nud/or recordkeeping requirements cantained in this leti.or rf f ect f c scr thu ten responducts ;
theroforo, Oc.3 clearance in not required
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Mr. Edward G. Bauer,.Jr.
Vice President & General Counsel Philadelphia Electric Company 2301 Market Street Philadelphia, Pennsylvania 19101 cc: Troy B. Conner, Jr., Esquire Charl'es W, El.liott, Esquire
-Conner & Wetterhahn Thomas & Hair 1747 Pennsylvania Avenue, NW 123 North Fifth Street Washington, D.C.
20006 Allentown, PA 18102 Mr. Robert W. Adler Judith A. Dorsey, Esquire Assistant Counsel Limerick Ecology Action
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Commonwealth of Pennsylvania, DER 1315 Walnut Street, Suite 1632 505 Executive House Philadelphia, PA 19107 P.O. Box 2357 Harrisburg, PA 17120 Mr. Karl Abraham Public Affa. irs Officer Honorable Lawrence Coughlin Region I House of Representatives U.S. Nuclear Regulatorj Commission Congress of the Uni.ted States 631 Park Avenue j
Washington, D.C.
20515 King of Prussia, PA 19806 Roger B. Reynolds, Jr., Esquire Mr. Jacque Durr 324 Swede Street Re5Tde'nt' Inspector Norristown, PA 19401 U.S. Nuclear Regulatory Commission P.O. Box 47 Joseph A. Smyth Sanatoga, PA 19464 Assistant County Solicitor County of Montgomery James M. Neill, Esquire Courthouse Associate Counsel' for Del-Aware Norristown, PA 19404 Box 511 Dublin, PA 18917 Eugene J. Bradley Philadel phia Electric. Company Joseoh H. White III Associate General Counsel 11 South Merion Avenue 2301 Market Stree.t Bryn Mawr, PA 19010 Philadelphia, PA 19101 Dr. Judith H. Johnsrud Mr. Vincent Boyer Co-Director Senior Vice President Environmental Coalition on Nuclear Operations Nuclear Power Philadelphia Electric Ccmoany 433 Orlando avenue 2301 Market Street State College, PA 16801 Philadelphia, PA 19101 Thomas Gerusky, Director Mr. Ma rvin I. ' Lewis Bureau of Radiation Protection 6504 Bradford Terrace Dept. of. Environmental Resources Philadelphia', PA 19149 Sth Floor, Fulton Bank Bldg.
i Third & Locust Streets Frank R. Romano, Chairman Harrisburg, PA 17120 Air & Water-Pollution Patrol 61 Forest Avenue Director, Pennsylvania Emergency Ambler, PA-19002-Management Agency Basement, Transportation &
Safety Building Harrisburg, PA' :17120 e
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John Shniper Lawrence Brenner, Esq., Chairman
- Meeting Ho'use Law Bldg. & Gallery Administrative Judge Mennonite Church Road -
U.S. Nuclear Regulatory Commission Schuylkill Road (Rt. 724)
Washington, D.C.
20555 Spring City, PA 19475 Dr. Richard F. Cole
- Robert L. Anthony Administrative Judge Friends of the Earth of the U.S. Nuclear Regulatory Commission Delaware Valley Washington, D.C.
20555 103 Vernon Lane, Box 186 Moylan, PA 19065 Dr. Peter A. Morris
- Administrative Judge t
Alan J. Nogee U.S. tiuclear Regulatory Commission The Keystone Alliance Washington, D.C.
20555 3700 Chestnut Street Philadelphia, PA 19104 W. Wilson Goode Managing Director City of Philadelphia
' Philadelphia, PA 19107 I'
' William A. Lochstet
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-119 E. Aaron Drive State College, PA 16801 j.
Walter W.' Cohen Consumer Advocate Office of Attorney General 1425 Strawberry Square Harrisburg, PA 17120 Steven P. Hershey, Esquire Consumers' Educa tion & Protective Association Sylvania House Juniper & Locust Streets Philadelchia, PA 19107 Sugarman & Cenworth Suite 51C North American Building 121 South Broad Street Philadelphia, PA 19107 Donald S. Bronstein, Esqaire The National Lawyers Gui'd Third Floor 1425 Walnut Street Philadelchia, PA 19102
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' ENCLOSURE 1 Limerick Generating Station Units' 1 & 2 Docket Nos. 50-352/353
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m.240.1 Your discussion of the plant site drainage system states that the plant
-(2.4.2.3) site was divided into subareas and that the rational formula was used to determine the runoff from the various subareas.
Identify the various subareas and tabulate their drainage areas, times of concentration, the parameters used in Kirpich's formula. the PMP rainfall intensity for the critical duration, and the resulting peak discharges.
2a0.2 In your discussion of the application of the Sakkas methed to the (2.4.4.2) hycothetical dam failure analysis you state that a re:resentative cross-section was prepared from three different actual cross-sections'.
Provide olets of these three crcss-sections as well as the representative cross-section all drawn to the same scale.
Show what is meant by the two paire.d characteristic breadth and depth dimensions.
240.3 Provide an analysis of the sensitivity of the dam failure induced (2.4.4.2) water level estimation to changes in the channel breadth and depth, and to Manning's "n" value.
240.4 You state that the outside condensate storage tanks are surrounded (2.4.12)~
design.
If they are not, provide an analysis to determine the entential by retaining dikes. State whether these di,kes are of seismic Category I for contamination of nearby surface waters assuming that both tanks and dikes fail.
2 0.5 You state that your selection of maximum groundwater levels for the (2.4.13.5; cetermira-ion of hydrostatic loading on structures is based on 36 months of monitoring witn 15 feet added to the May 1979 leveis-sh:wn in Figure 2.4-15.
Previce nore information to justify ne conservatism cf the water levels selected.
Include a tabulation of the monthly highest Water levels for wells shown on Figure 2.4-15 and the correspcnding monthly precipitation at the site for the 26 months of monitoring.
240.6 State whether-any cermarent undercrain or ground-water dewatering (2.4.13) systems are installed, being constructed or planned at the plant site.
If so. provide the informaticn called for in Branch Technical Position-HGES-1 " Safety-Related Permanent Dewatering Systems" (see NUREG-0800, S?: Section 2.4.12).
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240.7 Discuss the potential for damage to safety related ccmponents in the (9.2.6.5) spray pond due to ice formation and expansion.
If it can not be-shown that all safety related components are capable of withstanding n'
the upper limit of ice expansion forces considered reasonably possible over the life of the plant, discuss procedures for limiting ice formation on the spray. pond. Also discuss the potential for ice blockage in the spray no7.:les due to freezing rain.
240.S It is 'our understanding that you do not consider the soil-bentenite liner to be required for tne control of seepage cut of the spray pond because the water supply in the pond is considered to be sufficient to neet Regulatory Guice 1.27 recuirements even if unlined seecage ra es are assumec.
Section 2.5.4.6.1 of the.:SAR states that the permeability value assumed for the seepage calculation is 200 ft/yr.
Section 2.4.13.2.5 states that permeacility tests snow values in the bedrock beneath the spray pond ranging up to 1247 ft/yr.
In lignt of these measured values, justify the use of 200 ft/yr as a c'onservative assumption of permeability.
If this value cannot be shown to be conservative, describe the steps to be taken to assure that the soil-bentonite liner will possess the desirable gecmetric characteristics anc engineering properties to maintain low seepage rates, after construction, throughout the life of the plant and after a safe shutdown earthquake (SSE); and provide a commitment to include the soil-bentonite liner as a Q-listed item.
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