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ACCESSION NBRFAC IL: 50-387

50-388AUTH. hlAME

FIELDS'. S.RgC IP. NAME

AQUBTINIiD R

REGULATORY INFORMATION DISTRIBUTION SYSTEM (BIDS)

8512120m DOC. DATE: 85/12/05 N ARIZED: NOSusquehanna Steam Electric Stations Unit ii Pennsg lvaSusquehanna Steam Electric Stations Unit 2. Pennsg lva

AUTHOR AFFILIATIONPennsylvania Power 5 Light Co.

RECIPIENT AFFILIATIONPenn sg 1 van iai Commonwea 1 t h of.

DOCKET0500038705000388

SUB JECT: Requests approval to modi$ il design of sewage treatment-plant expansion. Revised oversize sewage treatment planexpansion drawing. engineering calculations Zc revised permitmodules 1 Zc 8 encl for review.

DISTRIBUTION CODE: C001D COPIES RECEIVED: LTR ENCL SIZE:TITLE: Licensing Submittal: Environmental Rept Amdt Zc Related Correspondence

NOTES: icg NMBS/FCAF/PM. LPDR 2cgs Transcripts.QL: 07/17/82icg NMBS/FCAF/PM. LPDR 2cgs Transcripts.QL: 03/23/84

05000387

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0 - ~Pennsylvania Power 8 Light CompanyTwo North Ninth Street ~ Allentown, PA 18101 ~ 215/ 7705151

December 5, 1985

Mr. Dino R. AgustiniSanitary Engineer, Permits and Grants SectionBureau of Water Quality ManagementPennsylvania Department of Environmental Resources90 East Union Street, Second FloorWilkes-Barre, PA 18701-3296

SUSQUEHANNA STEAM ELECTRIC STATIONSEWAGE TREATMENT PLANT MODIFICATIONWATER QUALITY MANAGEMENT PERMIT NO. 4085411CCN 741326 FILE 012-4PLE-43320

Dear Mr. Agustini:

The Pennsylvania Power and Light Company (PP&L). requests Pennsylvania Depart-ment of. Environmental Resources (Pa. DER) approval to modify the design of thesewage treatment plant expansion as required in Standard Condition No. 1 ofthis permit. It has been determined by PP&L engineers that a second chlorinecontact tank is not necessary in order to meet the minimum of 30 minutes of.contact time for the average daily flow of. 80,000 gpd (Pa. DER Sewage Manual,1983 Edition).

In reference to our November 15, 1985 telephone conversation, PP&L isattaching for Pa. DER review and approval a copy of engineering calculations,a revised sewage treatment'lant expansion drawing and revised permit Modules1 and 8.

If you have any questions, please contact me at (215) 770-7889.

Respectfully yours,

e ome S. Fieldsnior Environmental Scientist-Nuclear

JSF/dml

jsfltl004324i

cc: L A. Schwencer NRG'D. H. Gordon FAM

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PDR ADOCV o PDRP

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1 85OAtC CAVISE

Dec. 5, 1985

COMMONWCALTHOt tCNHSYLVAHIAOEtIh~t Ot CNVINONMCSI'TALhCSOUNCCS

%lTEW 4UA'LITTMIICACCMENT~ 0

WATER POI.LUTIONCONTROl—. hIOOULI t —QKNERAL. INFORI/(ATION

SEWERAGE.FOh OCPAhtMCNT USC ONLY

CLASS OF CONITRUCTION

(Check eil (ceb(e blocksl

Present Ooerst(nlOSIS

Existing Feei((tiesDesign

TAB( E I DESIGN LOADING DATA

SOU(VALENT POPUI ATION TO SC SKRVCD(NO. OF PCRSONS SUIMITCALCULATIONS)

eNEW AOOITIONS ANP/Oh

g MOOIFICATION

Prooosed Tote(Fecilities DesIgn

OOMESTIC

S. INOUCfhlAIC TOTAL,

1 DCSION Y'CAR OR tCRIOD FOR OPCRATINODATA

300-45 0

300-450

1985

000-

1985 19903. RUNOFF PCRIOD (HheiS, OOMCS'IC

WASTE'I

OWOATA

I tCh CAFITA FLOW

I, AVENAOE OAILYFLOW

C IHFILTNATION0 hUHOFF ~ I OW hA'fC

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C MAXIMUMFLOW hATE (MOO I

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~, MAxIMUse0AILYtLow (MOP( ~

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S. TOTAl DCSION AVCRAOC FlOW (M40( 0 ~ 045 0.0385 0.080TABLE II - FACILITIESDESIGN DATA ( Soecify number of unitsl

Units

I SChCCNINO OEVICCS

e. 4hlt CHAssschlsl

BIIistlnTo Be

AbendonedTote(

Prooosed Units

le. NAtlo $ ANo FILtch(~ I

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BxiltinTo Be

Abendoned

s. coMMINUtohlsl I~ . WASTE STASII ICALT ION tO NO($ I

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e. thC'AChATION TAHKS

~ . thIMAhYSCTTLINOTANKS

f. ThlCKUN4 FILTERS

4 INTChMEOIATC5CTTLINO TANKS

e ACNATION TANKS

leo FIHAL SCTTLINOTANKS

I. MIKINOANOFLOCCULATIONtAHKS

Ie. CHCMICALTNCATMCNT

IS. INTCNMITTCNTSANO F ILTCISS

Ie. OISIHFECTIOHFACILITICS

le. SLU04C THICKCNINOtANK($)

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sL 0'fHch IstcclttlSludge Holden'g

ER BWQ;1 88.8: R EV.3/83

OATE PREPAREO

Aug. 1, 1905OATE REVISEO

Dec. 5, 1985

COMMONWEALTHOF PENNSYLVANIADEKICThlENT OF ENVIRONMENTALRESOURCES

BUREAU OF WATER QUAUTY MANAGEMENT

WATER POLLUTION CONTROL

MODULE 8FOR OEPARTNIENT USE ONLY

TABLE 1 —FILTERS Iother than rapid sand filter) (N/A)

DESCRIBE EACH FILTERING DEVICE TO BE USED, INCLUDING:TYPE OF FILTER;MEDIA ITYPE, DEPTH. ETC):FILTRATIONRATE; BACKWASHPROCEDURE, RATES AND APPLIED LOADING.

TABLE 2 —DISINFECTION

OESCR I BE THF METHOD OF DISINFECTION TO 8 E PROVIDED. INCLUDINGOISINFECTANTTYPE; F E ED MECHANISM;EFF ECTIVE DOSAGE RANGE; EXPECTED RESIDUAL;CONTACT TIME AND SAF ETY FEATURES:

Disinfection will be accomplished by the injection of Sodium Hypochlorite into theinfluent in the chlorine contact tank. The Hypochlorite is diluted with water ina large plastic container and pumped by the variable speed chemical pump to providea minimum of 0.5 mg/l chlorine residual after a 17 minute detention time in thechlorine tank. The disinfection equipment is a Wallace & Tierman Model 94-100.

There is an additional estimated 13 minutes of chlorine contact time in the sewerpipe (2,230 .feet) between the sewage treatment plant and the river. The combinedcontact time of 30 minutes for an average daily flow of 80,000 gpd meets the require-ments of the Pa. DER Sewage Manual, 1983.

8-1

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CALC. NO.

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SAFETY-RELATED QASME IIIOR jII 0OTHER QUALITY

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