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ReWsed FOurth Quarter 1992 Groundwater Monitortn9 Report <br /> t 900 South Cherokee Lane Lodi California <br /> GROUNDWATER SAMPLING AND ANALYSES <br /> Aegis personnel collected groundwater samples from the three wells on October 29, 1992 <br /> The samples were collected according to the Aegis SOP included in Attachment 1, and <br /> submitted under chain-of-custody to Resna Labs, a state-certified analytical laboratory <br /> All samples were analyzed for concentrations of a) total petroleum hydrocarbons, as <br /> gasoline, by GC-FID/EPA Methods 5030/8015, and b) benzene, toluene, ethylbenzene, <br /> and total xylenes by GC-FID/EPA Methods 5030/602 Current analytical results, and prior <br /> 1992 analytical results only, are summarized in Table 2 The analytical laboratory reports <br /> and chain-of-custody form are included as Attachment 2 Previous analytical results are <br /> included in Attachment 4 Concentrations of benzene in each of the samples from the <br /> three wells were below the method detection limit <br /> Aegis recommends a copy of this quarterly monitoring report be forwarded to the <br /> following parties <br /> Ms Linda Turkatte <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 Router Road, Suite A <br /> Sacramento, California 95827-3098 <br /> 92 733A RPT 2 <br />