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Table 3 <br /> Groundwater Monitoring Results-BTEX/TPH as Gasoline Analyses <br /> Del Monte Disco Property <br /> Stockton,California <br /> Concentration(u <br /> Sample TPH Ethyl <br /> Well Date Gasoline Benzene Toluene benzene Xylenes Dilution Lead <br /> TCLP - 500 - - - 5,000 <br /> MCL - 1 1,000 680 1,750 50 <br /> NP-1-70' 3/12195 NA <br /> 7126195 NA <br /> 8115196 1:500 NA <br /> 4117/97 1:1000 NA <br /> 12/22/97 1:1000a/1:100b NA <br /> 4116/98 1:1000 NA <br /> 817/98 1:1000 NA <br /> NP-1-70 BB 12/22/97 <50 <0.3 <0.3 <0.3 <0.3 NA <br /> NP-2-65' 8/15/96 1:500 NA <br /> 4/17197 1:100 NA <br /> SVE-N 4/17/97 1:100 NA <br /> 12/22/97 1:50a/I:I00b NA <br /> 4/16/98 1:2 NA <br /> 7123198 1:10 NA <br /> SVE-N BB 12/22/97 <50a <0.3a <0.3b <0.3a <0.3a 1:500a/1:1000b NA <br /> 4116/98 <50 <0.3 <0.3 <0.3 <0.3 2:1 NA <br /> SVE-S 4/17197 1:1000 NA <br /> C 8/12198 NA <br /> 12/22/97 NA <br /> 4/16198 1:500 NA <br /> 7123/98 1:200 NA <br /> SVE-S BB 12/22/97 <50 <0.3 <0.3 <0.3 <0.3 NA <br /> 4/16/98 <50 <0.3 <0.3 <0.3 <0.3 2:1 NA <br /> 1,P: EPA Toxicity Characteristic Leachate Procedure for ldentifing Hazardous Waste <br /> MCL: California Maximum Contaminent Level for Drinking Water <br /> <0.5: Below Detection limit of 0.5 ug/l <br /> * Sample collected by minimum aeration technique <br /> Shading indicates results above the detection limit. <br /> NA: Not Analyzed <br /> Gdata9-98.xls Page 6 of 6 9/30/98 <br />