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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 /> MD <br /> 6 August 2002 IN <br /> W. Michael Carroll AUG 0 7 200Z <br /> San Joaquin County Department of Public Works ENVIRONMENT HEALTH <br /> Solid Waste Division PERMIT/SERVICES <br /> P.O. Box 1810 <br /> Stockton, CA 95201 <br /> HARNEyLANE SANITARyLANDFILL' IST AND 2" QUARTER 2002, <br /> GROUNDWATER AND <br /> SURFACE WA TER MONITORING REPOR T,SAN JOA Q U[N CO UNTY(CA SE FILE#2598) <br /> We have reviewed the Harney Lane Sanitary Landfill, I"and 2nd Quarter 2002, Groundwater and Surface <br /> Water Monitoring Report, dated 15 May 2002 and 2 August 2002,respectively. <br /> VOCs continue to be detected at trace concentrations,therefore groundwater continues to be impacted. <br /> Hexavalent chromium was detected in MW-3 and MW-4,but assumed to be from natural sources. Hexavalent <br /> chromium is not normally naturally occurring. California standards require at least 9 samples in order to develop <br /> background concentrations. Please ensure Water Quality Protection Standards are developed for all constituents <br /> of concern (COCs) on a quarterly basis. <br /> Please respond to comments in this letter and the attached Monitoring Report Compliance Checklist in <br /> subsequent monitoring reports, as applicable. <br /> If you have any questions,please contact me at(916)255-3137 or schwabk@rb5s.swrcb.ca.gov. <br /> KIM A. SCHWAB,RG <br /> Associate Engineering Geologist <br /> cc: Robert McClellon, San Joaquin County Environmental Health Division, Stockton <br /> Permitting and Enforcement Division, Solid Waste Management Unit, CI)N`MB, Sacramento <br /> KAS:Harney I't2ndQ2002 Itr <br /> California Environmental Protection Agency <br /> 0 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 />