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s <br /> r � c <br /> i <br /> These samples were taken at depths between 3 and '18 feet. The <br /> highest concentrations were in the headspace samples from the <br /> motzitoring wells. The results of the SVCA analyses are <br /> ## in Tables 5 and 6. presented <br /> I <br /> EVAX Technologies, Inc. , of San Jose conducted a soil gas survey <br /> on 12 and 13 March 1990 by taking gas samples from the monitoring <br /> ,f well headspaces and also from soil vapor probes. <br /> showed that the headspace of the monitoring wells conte data also <br /> wined <br /> I petroleum hydrocarbons and that MW3 had a much higher level of <br /> TVH ( 19;425 ppm) than the other wells (Table 7, Figure 7). Soil <br /> vapor obtained at a depth of <br /> p 28-30 feet beneath the tank field <br /> contained high concentrations (5,700 ppm) of volatile hydrocar- <br /> bons.. <br /> 3. <br /> zory <br /> i <br /> { <br /> e42/71Q50/7-90/tx <br /> 6 <br /> 1 <br /> L c <br />