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California Regional Water Quality Control Board <br /> Central Valley Region <br /> Winston H.Hickox <br /> Robert Schneider,Chair <br /> Gray Davis <br /> Secretary for Sacramento Main Office Governor <br /> Environmental Internet Address: http://www.swrcb.ca.gov/rwgcb5 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000-FAX(916)255-3015 <br /> 24 May 2001 <br /> Mr. Michael Kalish <br /> County of San Joaquin, Department of Public Works <br /> P.O. Box 1810 <br /> Stockton, California 95201 <br /> REVIEW OFFIRST QUARTER 2001 GROUNDWATER AND SURFA CE WATER <br /> 1VI01VVIT0 'VGREPORT FOR NORTII COUNTYRECYCLING CENTER AND SANITARY <br /> LANDFILL, SANJOA QUIN COUNTY(Case File No.3161) <br /> Regional Board staff has completed review of the North County Recycling Center and Sanitary Landfill, <br /> First Quarter 2001, Groundwater and Surface Water Monitoring Report, dated 15 April 2001. <br /> Monitoring has been completed in compliance with the Waste Discharge Requirements. The report <br /> indicates that electrical conductivity, suspended solids, dissolved solids, and concentrations of chloride, <br /> sulfate, and bicarbonate alkalinity are significantly higher in the upstream surface water sample at S-2 <br /> than in S-1 and S-4. Gas extraction may be required if the odor of landfill gas through the ground <br /> continues. <br /> The county submitted a correction of the Fourth Quarter 2000 groundwater contours that was received <br /> by the Board on 27 April 2001. The County conducted resampling for hexavalent chromium that <br /> indicates a non-detect in well G-4. The detection level was 0.005 mg/1. The Board will conduct further <br /> review of these results. The required resampling of well G-5 for methylene chloride and chloromethane <br /> indicated no detection as of 10 January 2001. <br /> The Monitoring Report Compliance Checklist for the review of the First Quarter 2001 report is attached. <br /> If you have any questions or comments regarding our review,please call me at (916) 255-3137. <br /> WEND W. ARANO <br /> Associate Engineering Geologist <br /> cc.: Mr. Steven Mindt, 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 /> hk 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/rwgcb5 <br />