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r <br /> Y . <br /> Results of Initial Investigatio-i and Work Plan December 18, 1990 <br /> ARCO Service Station No. 760, Lodi, California AGS 38048-4 <br /> The site is in the Eastern San Joaquin County Ground-Water Basin(California Department <br /> of Water Resources, 1980). According to personnel with the SJPHS, the regional greund- <br /> i water gradient is to the southwest. Depths to ground water in monitoring wells instalLd in <br /> the area over the past 2 years by Applied GeoSystems have fluctuated between 40 and 50 <br /> feet. The groundwater basin has been developed for intensive irrigation, domestic, <br /> industrial, municipal, and stock use. <br /> The local surface drainage includes the Mokelumne River and the South Main Canal. The <br /> Mokelumne River drains to the west approximately 1 mile north of the City of Lodi. The <br /> South Main Canal flows to the south approximately 3 miles west of the site. <br /> PROXIMITY OF WELTS AND UTH XI ES <br /> The neighboring properties are commercial and residential. It is our understanding from <br /> City of Lodi personnel that there are no municipal,domestic,or irrigation water well's within <br /> 500 feet of the site. We also understand from the City of Lodi that there are no septic <br /> ® tanks, leach fields, or other public utilities near the site. <br /> PREVIOUS WORK <br /> Applied GeoSystems conducted field work at this site in accordance with our Work Plan No. <br /> 3$048-3W (Applied GeoSystems, April 23, 1990) and our Site Safety Plan No. 38048-3S <br /> ! (Applied GeoSystems,February l5,1990). Applied GeoSystems'methods for field work are <br /> described in Appendix A. <br /> 3 <br /> M <br /> App/Ted GeoSystems - - <br />