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Fars,au.N..�s�s a.a.r..rYed�p wr R•aae <br /> 248 V4W KeWOMn L nn,Lo*C4W min <br /> c <br /> GROUNDWATER SAMPLING AND ANALYSES <br /> Groundwater samples were collected from five of the wells. Ail other wells were dry, <br /> except well MW-34 which has a damaged riser. All samples were analyzed for <br /> concentrations of: <br /> • Total petroleum hydrocarbons, as gasoline, EPA Methods 503018015; <br /> • Benzene, toluene, ethylbenzene, and total xylenes by EPA Methods 5030/602. <br /> Analytical results from March 1992 to date, are summarized in Table 2. Previous <br /> analytical results are attached. The laboratory report and chain-of-custody forms for the <br /> current event are included in the Attachments. Benzene concentrations were <br /> nondetectable in all wells sampled this event. <br /> Aegis recommends a copy of this quarterly monitoring report be forwarded to the following <br /> parties: <br /> Mr. Harlan Knoll <br /> Environmental Health Division <br /> San Joaquin Public Health Services <br /> Post Office Box 2009 <br /> Stockton, California 95201 <br /> Mr. James B. Maughan <br /> Central Valley Regional Water Quality Control Board <br /> 3443 Routier Road, Suite A <br /> Sacramento, California 95827-3098 <br /> 92-734F,RP'r -2. <br />