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' 6.0 CONCLUSIONS <br /> The following conclusions and recommendations are based on the observations and <br /> ' analytical data collected to date. <br /> ' Laboratory analysis of ground water samples indicates the presence of moderate levels of <br /> gasoline and gasoline constituents in water collected from monitoring well MW-1 and <br /> low levels in MW-6. All other monitoring well samples indicated non detectable levels <br /> for analyzed constituents. The data indicate an increase in constituent levels in both <br /> monitoring wells MW-1 and MW-6 as compared with previous sampling event data. <br /> 7.0 RECOMMENDATIONS <br /> ' Based upon the results of the additional soil and ground water investigation, and the <br /> results obtained from this quarterly sampling event, AGS believes that the lateral and <br /> vertical extent of gasoline contaminated ground water have been adequately defined. <br /> lieAGS recommends continued quarterly monitoring of the five monitoring wells sampled <br /> during this event to assess ground water quality over time. AGS does not recommend the <br /> recovery of the monitoring well MW-8 at this time. Historical analytical data indicate <br /> non detectable levels of all analyzed constituents over the five previous sampling events <br /> at this well. <br /> ' The next regularly scheduled quarterly sampling event will take place in June, 1998. <br /> (� American Geological Services, Inc. <br /> CA95 DE-629 <br /> 14 <br />