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MAY-19-1995 0e:07 DEL-TECH GEQTEGHNLf.HL <br /> E <br /> ..101 <br /> DEL- TECH Geotechnical Support Services <br /> Ron Rove <br /> San 10ayuin County Public Health Department <br /> 445 N. San Joaquin Street <br /> Stockton, CA. <br /> RE: AMENDMENT TO SINCLAIR TRUCK]NG WORKPLAN <br /> LOCATION: SINCLAIR TRUCKING, TRACY, CA. <br /> NIr_ Rowe, <br /> Please review the following data in respunse to our conversation on May 15, 1995_ <br /> Sail and water samples collected during the installation of the (3) monitoring wells at the site will <br /> be analyzed for the presence of TPH-Gasoline,B.T.II;_E. and Total Lead. The minimum detection <br /> limits that the laboratory will use in completing the sample analysis requested are summarized <br /> in the following table. <br /> LABORATORY MINIMUM DETECTION LIMITS <br /> LAB_ DETECl'IUN DHTEq <br /> MET140D LIMIT L1M <br /> ('SUIL) {WA <br /> 'I'PH!CTAS 1.0 P12M 50 P <br /> TPM 1 DIESEL 1.0 PPM 50 PPB <br /> r3.TXE. 0.005 PPM .3 PPB <br /> LEAD 2.5 PPM .1 PPM <br /> OIL & GREASE 50,0131M 5,000.0 PPB <br /> 10624 Olive Avenue, Oakdale, CSL 95361 (209) 847-5757 * l~`ax (209) 8477744 <br />