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V <br /> Third Qtmr*r 1SS8 Graundv a4ar Mariftring Ropmt <br /> 900.South Chemki a Land Lodi Calibmw <br /> i <br /> GROUNDWATER SAMPLING AND ANALYSES <br /> Aegis personnel collected groundwater samples from four of the twenty-two wells (MW-6, <br /> MW-18, MW-27, and RW-1) on August 19, 1993 The samples were collected according <br /> to the Aegis SOP included in Attachment 1, and submitted under chain-of-custody to <br /> Sequoia Analytical, a state-certified analytical laboratory All samples were analyzed for <br /> concentrations of <br /> Total petroleum hydrocarbons, as gasoline, by EPA Method 8015, <br /> Benzene, toluene, ethylbenzene, and total xylenes by EPA Method 602 <br /> Analytical results from March 1992 to date are summarized in Table 2 The analytical <br /> laboratory report and chain-of-custody forms for the current sampling event are included <br /> as Attachment 2 Previous analytical results are included in Attachment 4 Benzene <br /> concentrations were below the method detection limit for all wells sampled this event <br /> Aegis recommends a copy of this quarterly monitonng report be forwarded to the following <br /> parties <br /> Ms Linda Turkette <br /> Environmental Health Division <br /> San Joaquin County Public Health Services <br /> Post Office Box 2009 <br /> Stockton, California 95201 <br /> Mr Gordon Boggs <br /> Central Valley Regional Water Quality Control Board <br /> 3443 Routier Road, Suite A <br /> Sacramento, California 95827-3098 <br /> 92 733D RPT 2 <br />