AT&SF AlbuquerqueSuperfund SiteAT&SF AlbuquerqueSuperfund SitePartial Deletion Open HouseOctober 14, 201010-14-20102Site Location3300 Second Street,SW, in the SouthValley area of theCity of Albuquerque,Bernalillo County10-14-20103Property BoundaryAT&SF Albuquerque Property:89Acres.Northern Property:62-acre parcel outlined in BlueTie Storage AreaSouthern Property:27-acre parcel outlined in OrangeProcess Treatment Areawood treatment areadrip trackswastewater reservoirwastewater discharge ditch10-14-20104History --Operationsformer Atchison, Topeka andSanta Fe Railway Company(AT&SF) Tie Treating Plantfacility operated as a woodpressure treatment plant fromMarch 1908 to January 1972 andprimarily used creosote and oilmixturesmanufacture of pressure treatedwood products, including railroadcross ties, bridge ties, switch ties,bridge timbers, road crossingmaterials, bridge piling materials,lumber, stock pen posts and fenceposts.62-acreParcel27-acreParcel10-14-2010562-Acre Tie StorageAreaGreen tie StorageTreated Tie StorageHistory --Operations62-acreParcel27-acreParcel10-14-20106History --Operations27-Acre ProcessTreatment Areawood treatment areadrip trackswastewater reservoirwastewater dischargeditch10-14-20107SiteInvestigationsSite Investigations–Phases I through Vconducted from 1987through 199910-14-20108Early Cleanup Actions27-acre Plant treatment process area1990:Approximately 8,250 tons of creosote-tainteddebris removed1999:Approximately 6,012 tons of sludge and processresidue excavated from the wastewater reservoir1999:Three recovery trenches were installed in thewastewater reservoir to collect dense non-aqueousphase liquid (DNAPL) through a gravity feed system.2000:Five recovery pumps were installed in onsitewells DNAPL from the Shallow and IntermediateAquifers.62-acre Tie Storage Area1996:soil excavation on the 62-acre tie storage area.10-14-2010962-Acre SoilCleanup

North10-14-201010History – Site RemedyAll Ongoing Cleanup Actions are associatedwith the 27-acre Plant Treatment ProcessAreaRecord of Decision: June 27, 2002SoilExcavation with In-situ solidification/ stabilizationCapping with Run-off/run-on managementOffsite incineration for DNAPL soilsGround WaterExtraction/treatment/injectionDNAPL extraction and offsite incineration10-14-201011Third Party CharacterizationGCC PremiumTransloader, LCSoil and GroundwaterSamplingNo groundwater areasof concern identifiedbased on groundwaterdata.Soil areas of concernwere identified.10-14-201012CharacterizationSamplingSurface (SS)and Subsurface(SB) Soil10-14-201013SoilExcavationAreas10-14-201014Institutional Controls10-14-201015FinalSitePlan10-14-201016Proposed Area forPartial DeletionNorthern62-Acre Parcel10-14-201017Public ParticipationNotice is Published in the Federal RegisterPublic Comment Period of 30 daysWeb: www.regulations.gov.Email:coltrain.katrina@epa.govFax: Attn: Katrina Higgins-Coltrain, 214-665-6660Mail: Katrina Higgins-Coltrain, Remedial ProjectManager, U.S. EPA Region 6 (6SF-RL), 1445Ross Avenue, Dallas, TX 75202- 2733.10-14-201018Public Participation (continued)EPA will review the comments submitted.EPA will prepare a Responsiveness Summary toaddress any significant public comments received.EPA will publish a final Notice of Partial Deletion intheFederal Register.The Notice of Partial Deletion will finalize the partialdeletion process.10-14-201019Future Work62-Acre ParcelLong-Term Operation andMaintenanceSite InspectionsFive-Year Reviews10-14-201020Community ParticipationSite documents can be found at:Albuquerque Public LibraryNew Mexico Environment DepartmentWeb ResourcesNMED: www.nmenv.state.nm.usU.S. EPA Region 6: www.epa.gov/region6/superfundContactsEPA: Katrina Higgins-Coltrain214-665-8143NMED: Angelo Ortelli505-827-2866EPA toll-free number800-533-5308Charles Thomas, BNSF817-740-7341Riaz Ahmed, TRC713-244-1000