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lerelej Chevroffexac a OawaterfayWalk DRAFT' May 12,2003 .. - . _.. . ... .. Dear Resident or Property Owner: How the Shallow-Groundwater Filtration Regulatory Requirements For Further Information stem Works As part of the construction of the City ofyk new SyChevronTexaco has been oohing with the following Documents for this project are available at: Westside Channel netObOuttall System Project on on BByron ChevronTexaco has desgned,installed,and will operate agencies: Road,ChevronTexaco is installing and wilt operate a a shallowlmundwateT filti system at the Westside •The Regional Water QualityControl Board Tracy library shallow groundwater filtration system.ChevronTexaco Channel Cattail System Project site.This new system (RWQCB),Region V.which ersees water quality for 20 East Eaton Avenue has prepared this letter to ensure you are informed includes a five-step process to thoroughly clean the thisarea Tracy City Hall and have the opportunity to provide comments or ask groundwater produced in dewatering the project 325 East Tent Street questions about to projectconstruction area •The San Joaquin County Environmental Health • Dewatering wells located along Byron Road Department Which provides environmental services Tracy City Hall Annex What the Westside Channel Outfall within[he county.indutling the City of Tracy Department of Development&Engineering Services (. , pump rate oil and s dimer into in thew tanks System Project IS All About to separate oil and sedimentsfrom the water •City of Nary,which is managing the Westside 520 Tracy Boulevard For a number of years,the City of Tracy has •Water is then moved to baker unks tore are Channel Outfall System ProjectX' P P The Regional Water Quality Control Board allows for been working to iinstall asmrmwaterdrainage it forte Bhration process The Regional Water Quality Control Board has two weeks to hear from the public regarding tis system to serve the new development that has . Water ten passes through the cartridge filters ,,, ., determined that to groundwater filtration system is groundwater filtration project.You should direct your Curtail occurred in town.The Westside Channel Dental to remove primarily sediment subject to the Board's General Order NOAS-2003-0044. comments to: System Project is the section of new stormwater This Order requires the submittal of a Report of Waste lines being installed at Byron Road between •Water is sentto a day filter system to remove oil Discharge by ChevronTexaco and to City of Tracy,a Mc Shelton Gray and iWmmem Road and Corral Hollow Road.Before •And finally,to water is passed through two public notice of the project,and a two-week public Senior Engineering Geologist installing the new stormwater lines,to City carbon canister filtration systems To remove comment period. California RegionalWaterQualityConirolBoard- mustfirstdewatertheareasincegroundwateris remaining oil dissoletl in the water Central Valley Region Unions issues at a shallower depth(approximately8 to 10 feet) 1685 E.Street discovered during than the planned depth of the stormwater lines After this process is complete,the water is tested at Project Timeline Fresno,California 93706-2020 (about 11 to 16 feet). a certified lab to ensure it meets the Regional Water .. Approximate Date (559)445-5116 general Quality Control Boards standards.The treated water (559)445-5508 direct �£ MAY7 Submission of Notice of lmentm r' What Was Found at the will be tested regularly in accordance with it sampling 0.1finc,The ... (559)445-5910 fax Construction Site plan approved by the Regional Water QualityControl IRegbnal WelerQwery Combat anticipated dialect Board.After treatment,the water is released to one of �nJ For more information on the City Tracy's Westsidehardline of ra During the initial phases of the City's four discharge points,ty manages byte Ciry of Tracy Channel Outtall System project call the construction on Byron Road,weathered oil and Y 1 From this port to City manages[he water. MAY 16 [sbrinssion of Report o1 Wrote oipeffected soil was found at to project site. City Department of Development b Engineering arye N to Regional Water Along Byron Road,the Westsde Channel OutfallChevronTexaco will manage the oil excavated during ity Control eoaN Services at 209$31-4600. System is being built in to same area as two, the project per a oil management plan.The soil distoric ce back outdinude oil hepi,eenmh management TheSanJoaquin has Come Environmental Health Health MAY 27 D.ftel p and Genntlwater To find out more information about this letter or date back to the early 19006.The pipelines by to San Joaquin County Environmental Health Discharge Filtration 9ystem Startup questions for ChevronTexaco,please call . were owned by two predecso er companies of Department and the City of Tracy. CI. ty of Trac Y ChevmnTezam at 600.5924006. ChevronTexaco(Chevron and Texaco).ChevronTexaco Water — INana etnent AUGUST 29 Dewrtedng and Groundwater is assuming soil and management of S oileHected soil and vestment of DE'feaIYWN 1, System Filtration Prates concludes oil-effected groundwater encountered ?via nasaam during construction of the WesUde n Channel Outfall System project. `x se.we ifi We are committed to 9 ensuring that this soil ROenR111RAt S _ .. lrlasAlT!RF1ll111}ARt evronTexaco and groundwater are RiRD prevertynt managed to to prevent impact to the $ 6001 Bollinger Canyon Road public or the elrvironment, mscHAAGa xer• E sa-Ts.A P.O.Box 6052 PoarT e2 „r.a a sysTaM» San Ramon,CA 94583 9 GFois«�ae NOTE.The rwo diischarge Y$ "VeS, points net on.on map yo @ oro me Of,sewer system. a Daub 5 N easla s V. �",mwienaurewccro waeavmH sov ansmuas. ti