December3,2014Mr.RobertK.Wood,DirectorEngineeringandAnalysisDivisionMailCode4303TU.S.EnvironmentalProtectionAgencyWilliamJeffersonClintonBuilding1200P.e1msylvaniaAvenue,N.W.Washington,DC20460AmericanElectricPower1RiversidePlazaColumbus,OH43215-2373AEP.comRe:lriformationRequestPursuanttoSection308oftheCleanT,VaterActPilotTestingConductedatJohnE.AmosPlantandOtherAEPPlantsDearMr.Wood:OnNovember4,2014,aletterwashand-deliveredtoDr.TimothyLohnerbyRonaldJordanofU.S.EPA,seekingcertaininformationrelatedtopilottestingrecentlyconductedattheJolmE.AmosPlantinWinfield,WestVirginia,andsimilartestingconductedatotherplantswithintheAmericanElectricPower(AEP)system.TherequestedinfotmationwassubmittedtotheagencyonNovember26,2014;however,certainsupplementalinformation,mainlyinresponsetoQuestion11,wasnotprovided.EnclosedaretwoCOswiththerequestedsupplementalinformation.ThefirstCD,labeled,AEPJohnE.DolanLabReportsQues.11.SupplementalInformationforSE05159AlAnalyticalDataTablePurgeDataconect.xlsxNON-CONFIDENTIALDATAprovidesinformationthatisrelevanttoQuestion10,Parta,(FGDpurgestream)andcorr-espondswiththeinfmmationprovidedintheExcelfile:SE05159AlAnalyticalDataTablePurgeDataconect.xlsx.ThesecondCD,labeled,AEPJolmE.DolanLabReportsQues.11.SupplementalInformationforSE05159AlAnalyticalDataTablePilotDataCBI.xlsxCONFIDENTIALBUSINESSINFORMATIONprovidesinformationthatisrelevanttoQuestion10,Partb(Influenttopilottesting)andPartc(Treatedwastewaterfromeachteclmologyevaluated),aswellasQuestion11(Supplementalinformation).Thisinformationcorr-espondstotheExcelfile:SE05159AlAnalyticalDataTablePilotDataCBI.xlsx.Inaddition,athirdCD,labeled,"NON-CONFIDENTIALDATA"InformationRequestPursuanttoSec.308oftheCWAPilotTestingConductedattheJohnE.AmosPlant-w/CorrectedFile,isbeingprovidedtoreplacetheoriginalCDwiththesametitle.OneofthefilesontheoriginalCD(SE05159AlAnalyticalDataTablePurgeData.xlsx)includedincoiTectreportingandmethoddetectionlimitsformercury.ThenewCDincludesacorrectedfile,whichincludestheappropriatereportinganddetectionlimits.Theinformationthatis"confidentialbusinessinformation"hasbeenplacedonaseparateCD,andisidentifiedbyastamporothermarkingdirectlyontheinformationsubmittedherewith.WeunderstandthatconfidentialinformationmaybesharedwithcontractorsworkingwithU.S.EPAonthedevelopmentoftheEffluentLimitationGuidelinesfortheSteamElectricGeneratingSector,assetforthinEnclosure4toyourletter,andthatU.S.EPAhasincludedprovisionsinthecontractswiththosevendorsallprovisionsnecessarytoimplementtheconfidentialityprovisionsof40CFRPart2,specifically,40CFR§§2.30l(h)(2),2.302(h)(2)and2.305(h)(2).Shouldfurtherdisclosureofourconfidentialinfonnationbenecessary,weunderstandthatitisU.S.EPA'sobligationtoprovideuswithnoticeofanytransferofconfidentialinformation.WealsounderstandthatU.S.EPAwillnotifyAEPifarequestismadeforreleaseoftheinformationdesignatedasconfidential,thatU.S.EPAmayrequestfurthersubstantiationofourclaimsofbusinessconfidentiality,andthatwewillbenotifiedofanydeterminationthatarequestforconfidentialtreatmenthasbeendenied.ThedataincludedontheCDthatismarked"CONFIDENTIALBUSINESSINFORMATION"isprimarilyinfmmationobtainedduringthepilottesting.ThepilottestingwasconductedpursuanttoasupplementalagreementwiththeElectricPowerResearchInstitute(EPRI),andisvaluableresearchanddevelopmentdatathatcouldprovideAEPanditsaffiliateswitheconomicandcommercialadvantagesindetermininghowbesttocomplywiththeeffluentlimitationscurrentlyunderreviewatU.S.EPA.AEPhasexpendedsubstantialresourcestopruticipateintheseresearchactivities,andtheresultsofthatreseru·chshouldnotbemadepubliclyavailabletoAEP'scompetitorswithoutcharge,becausedoingsowillrobAEPofitsinvestmentinthatresearch.AEP'scontractwithEPRIalsodesignatesthisinformationasCONFIDENTIALINFORMATIONofEPRIanditsfunders,givesAEPlimitedrightstousethedataandinformationdevelopedaspartofthissupplementalprojectonlyforitsowninternalpurposes,andrequiresAEPtolabeltheinformationas"confidential"priortoitsdisclosuretoanythirdpartyorgovernmentalentity,anddisclosetheinformationonlyifitwillbesubjecttoawrittenagreement,confidentialityorder,ornon-disclosureagreement.AEPhasdiscussedwithEPRIthisrequest,andtheprotectionaffordedpursuantto40CFRPrut2,andobtainedEPRI'sconcurrencetodisclosetheinformationsubjecttoaclaimforconfidentialtreahnenttmder40CFRPart2.

# None of the data for which AEP is requesting confidential treatment is "effluent data" as that

term is defined in 40 CFR §2.302(a)(2)(i), because all of the data relates to wastewaters that were

specially

developed for purposes of the pilot testing, and were retumed to the systems at the John

E.

Amos Plant for further treatment prior to discharge. This information is being voluntarily

submitted by AEP to further the agency's tmderstanding of technologies that have not yet

progressed to the point of commercial availability. While AEP understands that the agency can

consider

certain research-related information to be "effluent data" if necessary to demonstrate the

feasibility, practicability, or attainability (or lack thereof) of an existing or proposed standard or

limitation,

pursuant to 40 CFR 

# § 2.302(a)(2)(ii)(A), and may disclose such information publicly,

AEP submits that the preliminary natl.rre of the requested data, and the limited nature of the pilot

testing perfonned to date, is insufficient to allow U.S. EPA to make such a determination based

on

this data alone.

Should you have any questions concerning the information provided on the CDs, please contact

me

at (614) 716-1255, or by e-mail at twlolmer@aep.com.

Very truly yours, Timothy W. Lohner, Ph.D.

Consulting Environmental Specialist

Enclosures:

cc: CD Supplemental Information "CONFIDENTIAL BUSINESS INFORMATION"

CD Supplemental Information "NON-CONFIDENTIAL DATA"

CD Corrected file "NON-CONFIDENTIAL DATA"



# ~ordan- U.S. EPA

Phillip Flanders -U.S. EPA

John M. McManus- VP, AEP Environmental Services

Janet J. Henry- AEP Deputy General Counsel