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_ I <br /> G <br /> August 23, 1995 <br /> s <br /> i <br /> Subject: Corrective Action Plan Executive Swntnary - } <br /> Unocal Service Station No. 5886 <br /> 2701 W. March Lane <br /> Stockton, California 95201 <br /> Delta Project No. D095-066 <br /> In July 1995, Unocal began remodeling of service station No. 5886, located at 2701 W. March Lane, <br /> Stockton, California. Activities at the site included the removal of the station building, station <br /> canopy, product lines and dispensers, and the overlying concrete and asphalt cover. During removal <br /> of the lines and dispensers, soil samples were collected to assess the possible presence of petroleum <br /> hydrocarbons in sod. Soil samples were submitted to a California certified laboratory for chemical <br /> analyses Analytical results from the laboratory reported concentrations of total petroleum <br /> fied as gasoline and diesel and benzene, toluene, ethylbenzene, and total xylenes <br /> hydrocarbons quanti <br /> above the laboratory's limits of detection. <br /> Upon approval from the San Joaquin County Environmental Health Division, Unocal proposes to <br /> install a minimum of 10 Geoprobe sampling points on-site to assess the lateral and vertical extent of <br /> hydrocarbons in soil in the area of the former dispenser islands and product piping. Concurrent with <br /> the soil sampling, ground water samples will be collected and analyzed to assess if ground water has <br /> been impacted and to what extent. Based on the results of the proposed investigation, additional <br /> investigationlremediation work as necessary will be proposed and performed upon authorization from <br /> the San Joaquin County Environmental Health Division. Any required work will be performed <br /> concurrently with and after completion of the new station. <br /> i <br />