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S <br /> { S•eond QwMr I 9 MonMu+ing Reppn <br /> +I 3440 East Mein Avenue,Skmiftn,Caldomia <br /> 1 <br /> GROUNDWATER SAMPLING AND ANALYSES <br /> r Groundwater samples were collected from all three wells. All samples were analyzed for <br /> concentrations of: <br /> { TPH, as gasoline, by modified EPA Method 8015. <br /> { <br /> • BTEX by EPA Method 602. <br /> r <br /> Analytical results from December 1993 to date are summarized in Table 2, Figure 3 is a <br /> distribution map of benzene in groundwater based on the current data. The laboratory report and <br /> chain-of-custody form for the current sampling event are attached. Benzene concentrations <br /> remain nondetectable in wells MW-i and MW-3. Concentrations increased in well MW-2 . <br /> compared to prior sampling. <br /> i <br /> A copy of this quarterly monitoring report should be forwarded to the following parties. <br /> Mr.'Michael lnfuma <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 /> I' 3443 Routier Road, Suite A <br /> i Sacramento, California 95827-3098 <br /> i <br /> R' 94-474-2.QMR _2- <br /> f <br /> f <br />