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i <br /> Table 4 <br /> Groundwater Monitoring Results-BTEX/TPH as Gasoline Analyses <br /> Del Monte Disco Property <br /> Stockton,California <br /> ( Concentration(ug/1) <br /> SampleTPH Ethyl <br /> I well Date Gasoline Benzene Toluene benzene Xylenes Dilution Lead <br /> TCLP - 500 - - - 5,000 <br /> MCL - 1 1,000 680 1,750 50 <br /> SVE-S BB 112/22/1997 <50 <0.3 <0.3 <0.3 <0.3 NS <br /> 04/1 611 998 <50 <0.3 <0.3 <0.3 <0.3 2:1 NS <br /> 02/11/1999 <50 <0.3 <0.3 <0.3 <0.3 1A NS <br /> 07/1611999 <50 <0.3 <0.3 <0.3 <0.3 1:1 NS <br /> 11/08/1999 <50 <0.3 <0.3 <0.3 <0.3 1:1 NS <br /> 03/29/2000 <50 <0.3 1 <0.3 1 <0.3 <0.3 1:1 NS <br /> All analyses performed by EPA Method 8015/8020 <br /> CLP: EPA Toxicity Characteristic Leachate Procedure for Identifying Hazardous Waste <br /> MCL: California Maximum Contaminant Level for Drinking Water <br /> <0.5: Below Detection limit of 0.5 ug/1 <br /> * Sample collected by minimum aeration technique <br /> Shading indicates results above the detection limit. <br /> NS: Not Sampled <br /> 1 <br /> I <br /> i <br /> I Gdato6-00.x1s <br /> Page 7 of 7 71/07!2000 <br />