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California gional Water Quality ConAwl Board <br /> Central Valley Region <br /> Karl E. Longley,ScD,P.E.,Chair <br /> Linda S.Adams Arnold <br /> Secretary for Sacramento Main Office <br /> 11020 Sun Center Drive#200 Rancho Cordova.California 95670-6114 <br /> C Sehwarzenegger <br /> Environmental Governor <br /> Protection Phone(916)464-3291 •FAX(916)464-4f�45 Lel V�� <br /> hitp://www.waterboards.ca.gov/centralvalley �, LLL <br /> 4 January CNVIF�i��NI�b�EVT N�A�H <br /> Ja ry ,2008 pER, !l1'IT/SER� I <br /> W. Michael Carroll <br /> San Joaquin County Dept. of Public Works <br /> Solid Waste Division <br /> P.O. Box 1810 <br /> Stockton, CA 95201 , <br /> REVIEW OF FIRST QUARTER 2007 GROUNDWATER AND SURFACE WATER <br /> MONITORING REPORT, CORRAL HOLLOW SANITARY LANDFILL, SAN JOAQUIN <br /> COUNTY <br /> The Regional Water Quality Control Board (Regional Water Board) staff has reviewed the 3rd <br /> Quarter 2007 Groundwater and Surface Water Monitoring Report for the Harney Lane <br /> Sanitary Landfill. Staff finds the report complete. However, continued detections of volatile <br /> organic compounds (VOCs) in groundwater beneath the site is a violation of the current Waste <br /> Discharge Requirements No. 5-01-176 and Title 27. Staff has approved the Evaluation <br /> Monitoring Program plan to investigate the lateral and vertical extent of landfill gas (LFG) <br /> released from the unlined waste management unit. The Discharger has installed one <br /> groundwater monitoring well west-northwest of impacted well MW-5. Proposed offsite borings <br /> have not been completed due to property access issues, which the Discharger is pursuing. <br /> The Discharger has also proposed to install several LFG extraction wells to enhance recovery <br /> of LFG. The proposed extraction wells have not been installed as of the date of this letter. <br /> Please review the Monitoring and Reporting Checklist. If you have any questions please call <br /> me at (916) 464-4737. <br /> Todd A. Del Frate <br /> Engineering Geologist <br /> Waste Discharge to Land Unit <br /> Lower San Joaquin River Watershed <br /> Enclosure(s) Monitoring and Reporting Checklist <br /> cc: Gino Yetka, Closure and Technical Services, CIWMB, Sacramento <br /> Desi Reno, San Joaquin County Public Works, Stockton <br /> Robert McClellon, San Joaquin County Environmental Health Department, Stockton <br /> CIWQS VID#710662 <br /> California Environmental Protection Agency <br /> 011. Reercled Paper <br />