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R �7 P�. lr� � T1 <br /> ENVIRONMENTAL TECHNOLOGIES CORPORATION ~Lir! <br /> October 17, 1995 <br /> 94-304 <br /> Mr Harlin Knoll <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P O Box 2009 <br /> Stockton, CA 95201 <br /> Subject BJJ Trucking, 2431 East Manposa Rd , Stockton, California <br /> Mr Knoll <br /> Smith Environmental Technologies Corporation (Smith Environmental) has prepared this <br /> letter report to present the results of second quarter 1995 monitoring and sampling <br /> activities at the above referenced site (Figure 1) <br /> On May 31, 1995, Smith Environmental, on behalf of BJJ Trucking, conducted <br /> groundwater monitoring of monitoring wells MW1 and MW2 in addition to the site <br /> facility well (FW) During monitoring the depth to water and depth to bottom were <br /> measured The water levels in wells MW1 and MW2 have risen an average of 1 76 feet <br /> since last measured on February 9, 1995 (Table 1) The water level in the facility well <br /> had risen 7 71 feet since monitored In February 1995 The well locations are presented <br /> on Figure 2 <br /> Subsequent to purging, water samples were collected from wells MW1 and MW2 for <br /> analysis of benzene, toluene, ethylbenzene, xylenes (BTEX), and total petroleum <br /> hydrocarbons as gasoline (TPHg) by EPA methods 8020 and 8015 respectively <br /> Analysis was conducted by Argon Mobil Laboratory, certificate #1873, located in Ceres, <br /> California Petroleum hydrocarbon analytes were not present at or above laboratory <br /> method detection limits in water samples collected from wells MW 1 or MW2 These <br /> data are consistent with the previous six quarterly sampling rounds, beginning January 6, <br /> 1994 Analytical data are included in Table 2 Monitoring data, purge logs, laboratory <br /> data sheets, and chain-of-custody documentation are included as attachments <br /> 1• <br /> 1500WQUARTLY\2QR-1995 doe <br /> 1710 MainSuet • Escalon,CA 95320 • (209)838-3507 • fax(209)838-3509 <br /> Engineenng • Consulting • Remediation • Construction <br />