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Wim- - f <br /> Work Plan <br /> Arco Service Station 2076, Lodi, Calif. . 'a September 5, 1990 <br /> amp <br /> AOS 30008-IW <br /> Water supply wells exist greater than 500 feet west of the site. Data obtained from the <br /> California Department of Water Resources concerning these wells are presented in Table <br /> 1.and the locations of the wellsaze depicted on the '; Vicinity Map (Plate P-1). <br /> The Adjacent Property Map (Plate P-3)shows the neighboring properties are commercial. <br /> REGIONAL GEOLOGY AND HYDROGEOLOGY <br /> F <br /> Ile site is underlain by the tripper Men,�ber of the Modesto Formation,which is composed <br /> o, alluvial sediments that range in size from gravel to sand an.2 silt(Wagner, et al., 19$7). <br /> The Modesto Formation is of Pleistocene age, and dips gently to the west. <br /> . a4 1a - .. <br /> The site is in .the FAstem San Joaquin County Ground-Water Basin, (California <br /> {5F h _ - <br /> Department of Water Resources, 1988). Based on regional neaps prepared from 198$ <br /> ground-water data by San Joaquin County Flood Control and Water.Conservation District, <br /> r <br /> we expect the:.depth to ground water near the site to be approximately 40.to 50 feet with <br /> x <br /> a regianal.direction of flow to the southwest. The ground-water basin has been developed <br /> { for intensive irrigatie , d,3cnestic, industrial,municipal, and stuck use. <br />