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• <br /> 10 April 2002 <br /> AGE-NC Project No 97-0333 <br /> Mr Jim Podesta, Deputy Director of Public Works <br /> City of Manteca Public Works Department <br /> 1001 West Center Street <br /> Manteca, California 95')37 <br /> Subject: Report of Compliance - Discharge of Petroleum-;mpacted Ground Water <br /> RAINWATER CAR WASH <br /> 420 ',Vest Yosemite Avenue, Nlanteca, California <br /> Dear Mr Podesta <br /> • [n accordance with City of Manteca Public Works Department (C'MPWD) Indust-tal Wastewatcr <br /> Discharge Permit No 02 1, Adwinced CJeckrivironmental Inc (AUL) is submitting this report o1 <br /> compliance for the start-up penod of wastewater discharge into the Citv of Manteca sanitary sewer <br /> system at 420 West Yose-mite Avenue, Manteca, California (site) This report summarizes the stan- <br /> up of ground eater pump-and-treat remediation actr,Mies including treatment of petroleum-impacted <br /> ,mound hater and discharge into the sanitary sewer system Ground water pump-and-creat operation <br /> and maintenance procedures for the site were outlined in.Interim Remediation Work Plan, dated 2'_ <br /> June 2001, prepared by AGE and approved by the San Joaquin County Environmental Health <br /> Department (SJCFHD) by letter dated 27 June 2001 A copy of the CMPWD wastewater discharge <br /> permit included in Appendix A The site setting is illustrated on Figure I Site structures and <br /> monitoring well locations are depicted on Figure 2 <br /> Between 21 January 2002 and 20 Marcn 2002 (start-up period), AGE initiated interim ground water <br /> remediation at the site by continuously extracting petroleum-impacted ground water from well FW-I <br /> at a rate of approximately 4 5 gallons per minute (GPM) During the interim remediation start-up <br /> period, ground water was extracted from EW-1 utilizing a submersible, 4-inch diameter stainless <br /> steel Grundfos pump Petroleum-impacted ground water was routed underground via <br /> polyvinylchloride (PVC) piping from EW-1 to an above ground treatment system located at the <br /> southeast corner of the site (Figure 2) Treatment of petroleum-impacted ground water consisted of <br /> processing the water through three 2,000 pound media vessels consisting of granular activated <br /> carbon (GAC) and one 2 500 pound media vessel consisting of SunSolve, a liquid phase filtration <br /> media specifically uesigned to adsorb fuel oxygenated compounds (i e methvl tert butyl ether) After <br /> heing processed treated water was discharged into the sanitary sewer system through a sewer s"o tem <br />