East TennesseeTechnology Park

DOE Oak Ridge Environmental Management Program

Background TheOakRidgeGaseousDiffusionPlant beganoperationsduringWorldWarIIaspartoftheManhattanProject.Itsoriginalmissionwastoenrichuraniumforuseinatomicweapons.Theplantalsoproducedenricheduraniumforthecommercialnuclearpower industry from1945 to1985andwaspermanently shutdownin1987. Workatthesitenowfocusesonrestorationoftheenvironment,decontaminationanddemolition(D&D)ofthesite’sfacilities,andmanagement of the legacywastes.Reindustrialization ofthesitebeganin1996,andthesitewasrenamedEastTennesseeTechnologyPark(ETTP)in1997.

Site Cleanup ConvertingETTP into a commercial industrial park is theU.S.DepartmentofEnergy’s(DOE’s)long-termgoal.Thesiteis undergoing environmental cleanup,whichwas conductedfrom1998untilAugust2011byBechtelJacobsCompanyLLCand isnowbeingperformedbyDOE’scurrentEnvironmentalManagementcontractor,URS|CH2MOakRidgeLLC(UCOR).Thereuseofkeysitefacilitiesthroughtitletransferispartoftheclosureplanforthesite. In an effort to accelerate cleanup,DOE established theReindustrialization Program,which also helps to promoteeconomic development bymakingDOE assets such as land,buildings,andinfrastructureavailabletotheprivatesector.TheprogramaccomplishesitsgoalsviaauniquepartnershipbetweenDOE,communityrepresentatives,andtheregulators.

Completed Remediation ProjectsK-1070-C/D G Pit, Concrete Pad ActivitiesatETTPgeneratedmanytypesofwaste,includinghazardous,radioactive,andclassifiedwastesthatweredisposedofattheK-1070-C/Dsitefrom1975to1989.G-Pitwasoriginallydesignedasanorganicsolventdisposalpit.TheG-PitandtheConcretePadareaweregrouped together for remedialaction,whichincludedasourceremovalatG-Pit(wherethemajorityofthecontaminantreleaseisattributed)andputtingasoilcoverovertheconcretepadatK-1071.TheconcretepadwascoveredwithasoilcoverinApril1999,andtheG-Pitremovalwascompleted

inJanuary2000.ThermaltreatmentofthecontaminatedsoilwascompletedinApril2001,andthetreatedwastewasdisposedofintheEnvironmentalManagementWasteManagementFacility(EMWMF)inApril2002.WastewasalsoplacedintheOakRidgeReservation Industrial Landfill at theY-12National SecurityComplex.Approximately40yd3 ofsecondaryconstructionwastewasacceptedforincinerationatETTP’sToxicSubstancesControlAct (TSCA) Incin-eratorinSeptember2003.

K-1070-A Burial Ground The K-1070-A BurialGround was opened justwest ofETTP in the1950sto receivewastes from thegaseous diffusion plant.Theone-acre sitewas usedfor underground burials ofunclassified, contaminatedmaterials,which consisted largely of uranium-contaminatedmaterials.DOE,withpublicinput,selectedwasteremovalanddisposalasthecleanupalternative.RemediationworkbeganinJune2002andwascompletedinMarch2003with28,509tonsofwasteexcavatedanddisposedofatEMWMF.Thesitehasbeenregradedtoitsoriginalcontourandrestored.

K-1085 Old Firehouse Drum Site SixpotentialdrumburialareasattheK-1085OldFirehouseDrumSite,locatedoutsidetheETTPperimeterfencenearStateHighway58,wereexcavatedtoremovecontaminatedmaterial.This projectwas initiated after a state highway constructioncontractoraccidentallyuncovereddrumfragments.Theexcavatedmaterialfromtwoofthesixareaswascontaminated.Atotalof55m3ofmaterialwasplacedintowastecontainersanddisposedofatEMWMFinDecember2002.

Blair Quarry Remediation BlairQuarry,locatedjusteastofETTP,

wasanoperatingrockquarryfrom1942to 1945.Material disposal and openburningof trash anddebriswithin the

ETTP is located in the Roane County portion of Oak Ridge, Tennessee, approximately 13 miles west of downtown Oak Ridge.

November 2017

quarrybeganin1945.Pitsweredugintothefloorofthequarryandsubsequentlyfilledwithdebris.Buriedwastewasprimarilycontaminatedwith polycyclic aromatic hydrocarbons andpolychlorinatedbiphenyls(PCBs).Themajorcomponentoftheselectedremedywasremovalanddisposalofthecontaminatedsoil and debris.Remediationwork began inNovember 2004andwascompletedinJanuary2005with15,069tonsofwasteexcavated and disposed at EMWMF.The site has been re-contouredandrevegetated.

Depleted Uranium Hexafluoride Approximately7,200cylindersatETTPwereshippedoff-site,mostofthemgoingtoDOE’sPortsmouthSite.Mostofthecylinderscontaineddepleteduraniumhexafluoride(UF6).Eachsteelcylindercouldhold10to14tonsofdepletedUF6.Theywerestoredinyardsinrowsstackedtwohigh.ThisprojectwascompletedinFY2007. NaturalUF6wasusedasfeedmaterialduringthegaseousdiffusion process to enrich uranium. The percentage ofuranium-235was increased from theoriginal feedmaterial intheprocess(i.e.,enriched).TheremainingmaterialwasdepletedUF6.Itwasstoredasawhite,crystallinesolidthatwasslightlylessradioactivethannaturaluranium. Morethan1,200emptyandnear-emptycylinderscontainingresidual uranium compounds other than depletedUF6weredisposedattheNevadaNationalSecuritySite,withthatphaseoftheprojectcompletedinFY2003.

K-770 Area TheK-770ScrapMetalYardcoversapproximately30acresontheeastbankoftheClinchRiverinthePowerhouseArea.Duringthe1940sand1950s,theK-770sitewasusedasanoiltankfarm

forfueloilusedintheboilersoftheK-700Powerhouse.Sincethe1960s, theK-770ScrapMetalYardacceptedradioactivelycontaminatedorsuspectedcontaminatedmetalsanddebris.ThemajorityofscrapmetalattheK-770ScrapMetalYardoriginatedfromupgrade/improvement programsorD&Dof facilities atETTP. InadditiontoscrapmaterialfromETTP,materialsfromtheY-12NationalSecurityComplex,SavannahRiverSite,andtheOakRidgeNationalLaboratoryalsowerereceivedattheK-770ScrapMetalYard.Removalofscrapmetalanddebrisfromfouradditionalareas(K-1064ScrapYard,K-1066-GMaintenancearea,K-1131RemnantScrapArea,andK-1300Area)wasperformedsimultaneously for efficiency.The principal radionuclides ofconcernwerethoseassociatedwithuraniumenrichment. RemovalofthescrapbeganinJune2004andwascompletedApril 2007.Approximately 48,100 tons of scrapmetalweredisposedatEMWMF. Following removal of the scrapmaterial, remediation ofcontaminatedsoilswasinitiatedin2009.Radiologicalwalkoversurveysandsoilsamplingwereusedtodefineexcavationareas.Approximately67,000yd3ofcontaminatedsoilanddebriswereexcavated and transported toEMWMF for disposal betweenMay2009andOctober2010,includingmorethan11,000yd3ofasbestos-contaminatedsoilanddebris.Approximately500yd3 ofmorehighlycontaminatedsoilanddebriswereshippedfordisposal at theNevadaNationalSecuritySite and theEnergySolutionsfacilityinClive,Utah.

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UF6 cylinder being loaded for transport at ETTP

One of ETTP’s cylinder yards

before and after cylinder

removal

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K-710 Sludge Beds/Imhoff Tank TheK-710SludgeBedsandImhoffTankwerebuiltin1943tohandlesewagefromthePowerhouseAreaandoperateduntil1978.OtherstructuresassociatedwiththethreesludgebedsandImhoffTankincludedaliftstation/pumphouse,achlorinatorunit,andthecompressorhouse.Noknownwastereleasesoccurredfromthefacilityotherthantreatedsewage.TheprimarycontaminantofconcernwasPCBsattheK-710facilities,withsmallquantitiesof radionuclides, semivolatile organic compounds, andmetalsdetected.Thestructuresandsludgebedsweredemolished,andapproximately 260 yd3 ofwastewas disposed at EMWMF.RemediationworkbeganinAugust2006andwascompletedinSeptember2006.

K-1401/K-1420 Sumps Project During past operations, Building K-1401 served as amaintenancefacilitytocleanequipmentneededinthegaseousdiffusionprocess,andBuildingK-1420wasusedforequipmentdecontamination, uranium recovery, andmetal finishing.Groundwaterwouldseep into thebasements,andsumpswereinstalledduringconstructionofthesebuildingstokeepthemdry.Sincethegroundwaterintheareawascontaminatedasaresultofequipmentcleaningoperations,aCERCLAremovalactionwasimplementedinAugust1998topumpthegroundwaterfromtheK-1401/K-1420basementsumpsandtreatitattheETTPCentralNeutralizationFacility.As part of the site-wide groundwaterevaluation,DOE,EPA, andTDEC agreed to shut down thesumppumps.TheK-1401 sumpwasbackfilledwithgravelandsoil,andthesumpinK-1420wasfilledwithgroutandbackfilledwithsoil.

K-1085 Burnpit Soils Drumremovalactivitiescompletedatthissitein2002identifiedanareawithcontaminationassociatedwithaformerburnpit.Exploratorysoilboringsatthesite in 2005 and 2006 confirmed thepresenceofcontaminationandprovideddatausedtodefinetheexcavationlimitsfor the remediation. Soil excavationactivitiesbeganinJune2008andwerecompletedinJuly2008.Theexcavatedsoil (225 yd3)was stockpiled on-sitewithin a specially constructed, lined,andcoveredsoilstagingareapendingcompletionoffurthercharacterizationandevaluationtodeterminethestatusof theexcavatedsoils.Theexcavated

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soilwastransportedtotheCleanHarbors,Inc.hazardouswastetreatmentfacilityinDeerPark,Texas,fortreatmentanddisposalin2009.

K-1070-C/D and Mitchell Branch Plumes ETTPhas twoareas—K-1070-C/DandMitchellBranch—where previous DOE operations resulted in groundwatercontamination.Thesedefinedareasofgroundwatercontainingcontamination,or“plumes,”havebeeninvestigatedandidentified.AgroundwatercollectionsystemwasinstalledatMitchellBranch. The Federal FacilityAgreement parties evaluated thegroundwatercollectionsystemremedyin2005.TheevaluationresultedinadecisiontoshutdownthegroundwatercollectionandtreatmentsystembecauseitwasnotreducingthecontaminantfluxintoMitchellBranchinacost-effectivemanner.

Ponds Remediation RemediationoftheETTP1007-P1and901-APondsand720Sloughwascompletedusingecologicalenhancement.Ecologicalenhancement is an innovative approach to remediation thatincludes fish community restructuring, revegetation, andwildlifemanagement.Thegoalistoestablishanewconditionwithin the ponds that reduces risk from polychlorinatedbiphenyls(PCBs)byenhancingcomponentsoftheecologythatminimizePCBuptake.Actionscompletedwere removingfishthatbioaccumulatePCBs,restockingwithfish(bluegill)thatdonot bioaccumulate PCBs, planting aquatic vegetation to limit

One of the contaminated ponds at ETTP being drained

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sedimentresuspension,andmonitoringtheprogresstoevaluateeffectivenessandidentifyadjustments.Alloftheworkhasbeencompleted,andoperationalmonitoringisbeingperformed.

K-1035 Soil Remediation DemolitionofBuildingK-1035wascompletedin2009.Theassociatedremediationconsistedofremovingthebuildingslab,removingthreepitsandsurroundingsoil,andremovingthepits’inletpipingandsurroundingsoil.

K-1070-B Burial Ground Contaminateddebrisandsoilhavebeenremovedfromtrencheswithina60-year-oldlandfilladjacenttotheK-25cleanupprojectandaprotectivecoverhasbeeninstalled. Thematerialswereremovedtominimizethepotentialforfuturecontaminationofsurfacewaterandgroundwater. The6.5-acrelandfill,calledK-1070-B,wasusedfromtheearly1950stothemid1970stodisposeofitemssuchasequipment,materials,parts,anddrums. Thelandfillconsistedofsixtrenches,eachexcavatedtoabout15feetdeep,andapproximately20feetofdebrislandfilledoverthetopofthesetrenches. Personnel cleaning up the burial groundworked 205,800accident-freehourswhileexcavating100,200cubicyardsofsoilanddebris.Atotalof7,790dumptruckloadsofwasteshippedtoEMWMF.

Ongoing Remediation Projects

Hexavalent Chromium Releases OperationoftheChromiumWaterTreatmentSystembeganinFY2012.Thissystemprovidesalong-termsolutionforhexavalentchromiumbeingreleasedintoMitchellBranch.Thesourceofthiscontaminationhasnotbeenidentified.

ThesereleasesaffectedtheambientwaterqualityinMitchellBranch,potentiallyaffectingthewaterqualityinPoplarCreek.In response to this concern, DOE completed a time-criticalRemovalActiontoextractthecontaminatedgroundwaterandanon-time-criticalRemovalActiontoinstalltheChromiumWaterTreatmentSystem.SincecompletionoftheseRemovalActions,the concentration of chromium in Mitchell Branch has beenreducedtocompliantlevels.

Groundwater Strategy As a consequence of past missions, the groundwaterbeneath several areas of ETTP has become contaminated.While thefinaldecisionfor theprotectionofgroundwaterhasnot been determined, the Department of Energy and UCORhave implemented extensive measures to isolate remainingcontaminantsources. Multiple complex sources/plumes have been identifiedon the ETTP.As demolition and soil restoration projects arecompleted, environmental specialists will gather and evaluatecriticaldatatodetermineprotectivecleanupactionsforaffectedgroundwater.ThecurrentgroundwaterstrategyforETTPincludes

• Accelerate groundwater approach for three large cleanupparcels to enable transfer of land for redevelopment andreuse

• Obtain a groundwater Record of Decision for specifiedplumes in Zone 1, the 1,400-acres bordering the ETTPindustrialarea

• DevelopapproachfortheremainingplumesinZone2,the800-acrecentralETTPsite

Completed D&D Projects

Group 1 Buildings, Auxiliary Facilities DOE completed the demolition of five buildings knowncollectivelyastheGroup1Buildings. TheGroup1BuildingsincludedtheK-725BerylliumBuildingand theK-724StorageBuilding, theK-1131Feed andTailsBuilding,theK-1410PlatingFacility,andtheK-1031Warehouse.DemolitionofthesefacilitieswascompletedinJune1999.

Group 2 Buildings, Auxiliary Facilities DOEcompletedthedemolitionoftheGroup2buildings,phases1and2.Phase1included10facilities,knowncollectivelyastheMainPlantD&Dproject.The facilities include theK-1045-AWasteOilBurningPit,K-1408TireandBatteryShop,K-1300Stack,K-1301FluorineProductionFacility,K-1302FluorineStorageBuilding,K-1303FluorineFacility,K-1404AcidStorage,K-1405HighTemperatureLaboratory,K-1407Laboratoryand

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K-1070-B during remediation

StorageFacility,andK-1413EngineeringLaboratory.DemolitionwascompletedinJanuary2003. Phase2alsoincludedthedemolitionof18facilitieslocatedon and around theK-1064Peninsula and the cleanup of theK-1064Scrapyard.The facilities consisted of pumphouses, acooling tower (K-801-H), old storage facilities (K-1025A-E),andmiscellaneousmaintenance areas.Demolition of the lastfacilitywascompletedinJune2006andtheScrapyardcleanupwascompletedinSeptember2006.

Buildings K-29, K-31, and K-33 BuildingsK-29,K-31, andK-33werepreviouslyused foruranium enrichment processes.Contaminated structures andequipment remained. BNFL Inc.was awarded a fixed-pricecontractin1997todecontaminateanddecommissionthefacilities. Thecompanydismantled,removed,anddispositionedmorethan 159,000 tons ofmaterials and equipment from the threebuildings,whichcomprisemorethan4.8millionft2offloorspace. BechtelJacobsCompanyLLCcompleteddemolitionofK-29inAugust 2006. In 2010,DOE contractedwithLATA/Sharpto demolish theK-33Building.The building demolitionwascompleted,andthelastwastewasdisposedinSeptember2011. DOE’scurrentcleanupcontractor,UCOR,completedK-31demolitioninJune2015.

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K-1206-F Fire Water Tower OneofthemosticonicstructuresatETTP,thecheckerboardwatertowerthatdominatedthesites’sskylinefor55years,wasdemolishedinAugust2013.OfficiallycalledtheK-1206-FFireWaterTower,the400,000-gallonstructurewasdesignedandbuiltbytheChicagoBridge&IronCompanyin1958toservicethesite’sfireprotectionsystem.ItoperateduntilJune2013,whenthe valveswere turnedoff. Itwas drained, disconnected, andpermanentlytakenoutofserviceonJuly15,2013.

K-25 Demolition Demolition activities have been completed at theK-25Building,amassiveU-shapedstructurethatoriginallycontained1.64millionft2offloorspaceandoccupiedabout40acresnearthe center of ETTP.The former gaseous diffusion building

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K-33 and K-31 area after demolition

K-33 Site debris removal

K-33 (foreground) and K-31 before demolition

contained radioactive contamination andhazardousmaterials.Thedemolitionprocessleavesthebasementslabsinplace.TheZone2RODaddressestheslab,undergroundsoil,andutilities. Demolition of thewestwingwas completed in January2010,anddemolitionoftheeastwing,withtheexceptionofafewunitscontaminatedwith technetium-99,wascompletedinSeptember2012.Workers completedbringingdown thenorthend,thesmallestofthethree-sectionedbuilding,inJanuary2013.ThenorthendformedthebaseofthebuildingsuniqueUshape.The technetium-99-contaminatedportionof theeastwingwascompleted inDecember2013,completingbuildingdemolitionactivities.Wasteshavebeenremovedfromthesite. DOEandlocalhistoricpreservationagencieshaveagreeduponcommemorativemeasurestopreservethehistoriccontributionsofOakRidge’sK-25sitetotheManhattanProject. Whilepreservationof theK-25Building’snorth endwasonceunderconsideration,thebuilding’sdeterioratedconditionmade that option too costly. Instead,DOEwill commemoratethesitebyimplementingthefollowingmeasures:• Approximately 40 acres located inside the road that

currently surrounds the original K-25 Building will bededicatedforcommemorationandinterpretationactivities.The agreement calls for the construction of a three-storyequipment building at the property’s southern end that

willrecreateascalerepresentationofthegaseousdiffusiontechnology and contain authentic equipment used in theK-25Building.Thebuildingwillalsohouseotherequipmentthatwasdevelopedand/orusedatthesite.Theprojectwillinclude a viewing tower erected on the south end of thebuilding’sfootprint(near theOakRidgeFireStation)and12waysideexhibitsthatwilltellportionsoftheK-25story.

• AK-25HistoryCenterwillbelocatednearbyonthesecondleveloftheFireStation,ownedbytheCityofOakRidge.TheHistoryCenterwillprovidespacetoexhibitequipment,artifacts,oralhistories,photographs,andvideo.

• DOEprovidedagrantof$500,000 to theEastTennesseePreservationAssociationtohelppreservetheAlexanderInn,ahistoric structure inOakRidgewherevisiting scientistsanddignitariesstayed.Thegrantwasusedtopurchasethe

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The final section of the K-25 Building was demolished in December 2013.

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property and stabilize the structure until the Inn could betransferredtoaprivatedeveloper,whichtookplacein2013.

K-27 Building DemolitionoftheK-27Building,thelaststandinggaseousdiffusion facility atETTP, has been completed.The buildingoccupieda383,000ft2footprintwithmorethan1.1millionft2oftotalfloorarea.ItissimilarinstructuretotheK-25Building. Demolitionof thebuildingwascompletedinAugust2016,andcompletesitecleanupwasfinishedin2017.Removingthisbuildingmarkedthefirst-evercompletedemolitionofagaseousdiffusioncomplexandallowedDOEtoachieveVision2016—thedemolitionofallETTPgaseousdiffusionfacilitiesbytheendof2016.

Poplar Creek Facilities DemolitionhasbegunontheETTPPoplarCreekfacilities,aseriesof11buildingsandseveralotherancillaryfacilitiesandtielinesbuiltinthe1940sand1950stosupportthesite’snuclearoperations. ThesestructuresareETTP’smostcontaminatedremainingfacilities. Two of the larger facilitieswere demolished in FY2017—the K-832-H Cooling Tower and the K-832 CoolingWater Pumphouse. The 5,500-square-foot cooling tower,whichwasusedinthesite’suraniumenrichmentprocess,wasconstructed in 1985 to replace the original 14-cell tower thatbeganoperatingin1945.Itonlyoperatedashorttimebecauseuraniumenrichmentoperationsatthesiteceasedin1985. The 11,000-square-foot coolingwater pumphouse, whichoperatedfrom1946to1985,pumpedrecirculatingcoolingwa-terfromtheK-832-HCoolingTowerbasinthroughthegaseousdiffusioncascadeequipment.Afterbeingshutdown,itwasusedtostoreelectricalequipmentandbatteries.

InearlyFY2018,workersdemolishedtheK-1203facility,which provided the site with sanitary sewage treatment. Itconsistedofanaerationbiologicaltreatmentplant,liftstationssedimentationbasins,filtrationandfacilitiesforpercolationofsludges,ultravioletlightdisinfection,andchlorinationandde-chlorinationequipment.

Ongoing D&D Projects

Group 2 Buildings, Phase 3 Approximately500above-groundfacilitieshavebeenorarescheduledtobedemolished.Thesefacilitiesincludeadministrativebuildings,laboratories,processfacilities,pumphouses,utilities,andotherstructures.Mostofthesefacilitieshaveactualorpotentialelevated concentrationsof radiological and/or other hazardoussubstances.Demolitionactivitiesincludecharacterization,utilitydecommissioning,segregationofdemolitionwastestreams,anddisposalinappropriateOakRidgeReservationorotherdisposalfacilities,asrequired. Major facilities that have been successfully demolishedinclude theK-1004-A,B,C, andDLaboratories,K-1004-L,K-1008/K-1020 areas, K-1501 steam plant, K-1420,K-29,K-1401,K-1231,K-1233,K-413,andK-1035.InFY2011,D&Dof sevenWarehouseRowbuildingswas completed (K-1061,K-1036,K-1055,K-1058,K-1415,K-1059, andK-1416), andtheD&DoftheK-1310-CDbuildingandtankswascompleted.Almost400facilitieshavebeendemolished,withseveralothersdeactivatedandcharacterized.

Building K-1037 Preparation has begun for deactivation and demolition oftheK-1037Building,whichonceproducedbarriermaterialforthegaseousdiffusionprocess. Initial planning walkdowns have been conducted, whichidentified issues with the building’s electrical service andcombustiblesstorage.Theoriginalelectricaldistributionhasbeenisolated,andanewtemporarylightingservicehasbeeninstalled.Workershavealsobegunremovingcombustiblematerialsfromthebuilding.Preliminaryplanningandengineeringwalkdownshavebeenconductedtoallowforfutureasbestosandhazardousmaterialabatement.

TSCA Incinerator TheToxicSubstancesControlAct(TSCA)Incineratorwasshut down permanently on Dec. 2, 2009, after treating 35.6millionpoundsofliquidandsolidwasteovera19-yearperiod.It was the only U.S. facility permitted to incinerate certainradioactiveand/orhazardouswastes.

K-832-H Cooling Tower demolition.

For more information, please contact the DOE Public Affairs Office at (865) 576-0885 or 1-800-382-6938, option 1.

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Closure activities were completed inDecember 2010, and the State of TennesseegrantedpermitterminationonSept.21,2012. ActionsweretakentoencapsulateremainingPCBandradioactivecontaminationtominimizewatermanagementactionsandtoreducethecostofongoingsurveillanceandmaintenance.Workto prepare the facility for demolition has beencompleted,anditwillbeundersurveillanceandmaintenanceuntildemolition.

Reindustrialization Progress Oak Ridge’s Reindustrialization Programis in its 21st year as the model DOE assetreuseprogram. During that time, the sitehasbeen transformed throughout from a formeruraniumenrichmentcomplextoaprivatesectorindustrialbusinesspark. AsOREMmoves toward thefinal phasesof environmental cleanup at ETTP, the sitecontinuesitstrektowardaprivatesectorpark,as well as a national park and conservationarea.AClosurePlanwasdevelopedinFY2017toaddressthenecessary transfer and disposition path for all site assets. Itincludestransitionplanningforalloftheremainingfacilities,land,andutilityinfrastructure. Additionally, a formal revitalization plan was developedthat reevaluated andmodernized themaster planning for theHeritageCenter. Thisapproachaccountedfor recentcleanupaccomplishmentsandnewdevelopments,suchastheproposedregionalgeneralaviationairport.Severalstakeholdersworkedtogether to coordinate the Heritage Center’s development toachieveacommongoal. The Reindustrialization Program has transferred 185acres in the formerK-33/K-31Area to theCommunityReuseOrganization of East Tennessee (CROET), which was thelargestlandtransfertooccurattheHeritageCenter.Thisisa

highlydesirableparcelbecauseofitslargesize,flattopography,andsignificantinfrastructure.TheReindustrializationprogramalsomoved forwardwithmakingother largerparcelsof landavailable for major manufacturing developments, includingthe 400-acre PowerhouseArea and the 200-acreDuct Islandparcel.ThesepropertiesarethefirstavailableatETTPthatcanaccommodatelarge-scalemanufacturingdevelopments,whichwouldcontributesignificantlytojobgrowthinthearea. A proposed plan to build an airport on the ETTP sitereached a major milestone in FY 2017 with the completionof a master plan, which has been submitted to the FederalAviationAdministration(FAA)forapproval.TheMetropolitanKnoxville Airport Authority (MKAA), working closely withDOE, is leading thisproject. MKAAwillproceedwithfinaldesignworkwhenthemasterplanisapprovedbyFAA.

The Powerhouse Six solar array began operating at ETTP in 2015. It is a 1 megawatt power-generating facility located on a five-acre parcel and generates around 1.4 million kWh annually.