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4( <br /> ,<o.d <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> Winston H.Hickox Robert Schneider,Chair Gray Davis <br /> Secretary for Sacramento Main Office Governor <br /> Environmental Internet Address: http://www.swrcb.ca.gov/rwqcb5 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> 23 July 2001 <br /> Mr.Michael Kalish JUL 7 2001 <br /> County of San Joaquin <br /> UH <br /> Department of Public Works A' <br /> P.O.Box 1810 <br /> Stockton,CA 95201 <br /> REVIEW OF THE SECOND QUARTER 2001 GROUND WATER AND SURFACE WATER <br /> MONITORING REPORT FOR THE HARNE Y LANE SANITAR Y LANDFILL,SAN JOA Q UIN <br /> COUNTY(Case No 2598) <br /> Regional Board staff has reviewed the Harney Lane Sanitary Landfill, Second Quarter 2001, Groundwater and <br /> Surface Water Monitoring Report, dated 15 July 2001. <br /> The Board should be informed in writing when repairs are made to prevent the ponding observed in the First <br /> Quarter 2001 monitoring event. No information regarding repairs were noted in the monitoring report.The repairs <br /> are to be completed before the next wet season. Please inform the Board in writing when the repairs are <br /> completed. <br /> As noted in our Third and Fourth Quarter 2000 and First Quarter 2001 review letters,the increasing trend of <br /> chloride in monitoring well MW-2 warrants observation. The county has statistically updated concentration limits <br /> for this well every quarter,however the concentration detected, 17.2 mg/l, is still beneath the concentration noted <br /> in the Waste Discharge Requirements Order No. 96-139. An intrawell tolerance limit update was not completed <br /> during this quarter due to the increasing trend. <br /> Hexavalent chromium was detected in MW-3 and MW-4 during this monitoring event. The <br /> concentrations were very low and the County will continue to monitor the situation. 1,2 Dichlorobenzene <br /> was detected in upgradient well MW-1. Since 2 or more VOCs must be detected above the MDL and <br /> below the PQL to warrant a re-test, the County did not perform one. <br /> I have attached a copy of Monitoring Report Compliance Checklist that will be included in the case file. If you <br /> have any questions or comments regarding the review,please call me at(916) 255-3126. <br /> VICTOR J. 0 0 <br /> Senior Engin ering Geologist <br /> cc.: Robert McClellon,REHS,Public Health Services,Environmental Health Division <br /> California Environmental Protection Agency <br /> Recycled Paper <br /> The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. <br /> For a list of simple ways you can reduce demand and cut your energy costs,see our Web-site at http://www.swrcb.ca.gov/rwqcb5 <br />