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' Elks Lodge Property <br /> 317 South Center Street March 16, 2001 <br /> Stockton, California Page: 6 <br /> 8.0 Conclusions <br /> Based on the data collected during this scope of work, WBF has concluded the following: <br /> ■ The groundwater contains MTBE and gasoline above the acceptable limits. <br /> ■ Motor oil was present in the groundwater at 23 mg/L. <br /> ' The soil column at B-1 from 10' to 25' was free from contamination for those <br /> parameters analyzed, except for the priority metals. <br /> ' The priority metals are all below the maximum acceptable limits for both the <br /> groundwater and soil. <br /> ■ Groundwater was encountered at 26' below ground level. <br /> ' There was an auto wrecking yard, ACME Auto Wrecking, located at 325 South <br /> Center from 1949 through 1955. In 1955 to 1956 the business on this property <br /> became ACME Auto and Truck Parts. After 1956 the business no longer <br /> ' existed. In 1960 the site was cleared. <br /> ■ Oxygenates, including MTBE, were not used prior to 1975, therefore it is <br /> logical to assume that the Gasoline and MTBE contamination present in the <br /> • groundwater underlying this site is from an off-site source since this site was <br /> cleared 15 years prior to the introduction of oxygenates into gasoline. <br /> ■ There is no published standard for Motor Oil in groundwater and is reviewed on <br /> ' a site specific bases as to impact. <br /> 1 <br />