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San Joaquin County <br /> General Services <br /> Page 2 <br /> According to the LUFT manual, .acceptable residual levels of <br /> xylene, toluene and TPH should not exceed . 015 ppm, . 005 ppm and <br /> 10 ppm, respectfully in soil. <br /> Should you wish to further investigate your facility, we <br /> encourage a meeting to discuss plans on how to begin dealing with <br /> the problem. PHS/EHD has been designated by the <br /> State of California Water Resources Control Board as the local <br /> agency overseeing the investigation of leaking UST' s. Copies of <br /> fourteen leaching analysis worksheets are being submitted to the <br /> County Administration for your reference. <br /> If you have any questions or require additional information, <br /> pleas contact Michael Collins, EHS, of my staff at (209) 468- <br /> 3442 . <br /> Jogi Khanna, M.D. , M.P.H. <br /> Health Officer <br /> L rie A. Cotulla, RENS, Program Manager <br /> vironmental Health Division <br /> LAC/MC: lb <br /> C. Raney Geotechnical - Mike Gereghty <br /> 3176 Industrial Blvd. , West Sacramento, CA 95691 <br /> C. County Administrator - Mel Wingett <br /> C. CVRWQCB - Elizabeth Thayer <br />