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r <br /> E <br /> 305 S. HUTCHINS STREET <br /> LOD►I, CA <br /> EXISTING CO !!NS <br />} <br /> i <br /> • Alluvial deposits consist of interbedded sand, silt, ank clay,:with a predominance of <br /> sand (see Figure 2),, <br /> • Since 1992,depth to water table has varied from 51 ?feet to 57 feet bgs. <br /> • Ground-water gradient is to the south(see Figure 3) <br /> • Nearby ground-water production wells <br /> "Old well No. 3" <br /> t . <br /> Total depth 230 ft; drilled in 1948. { <br /> Casing perforated from 102-144 ft, 180-230#t. <br /> Located.1600 ft east-northeast of site. <br /> Not in use since 1989>-tetrachloroethenefcontamination... <br /> No fuel hydrocarbons found in water. ; <br /> Well 311 <br /> Replal."old.well no. 3". 1 <br /> Total:6pth 360ft; drilled in'1992. r <br /> Casing slotted from 210}340 t. =; <br /> Located;1100 ft northwest of site. <br /> Nosproblems-with quality of water, <br /> +� :Extent and.Or gin of Sail Contamination <br /> it <br /> Soil with Eitel hydrocarbon contamination is found below 20 ft bgs and abode 42.5 <br /> ft bgs, well above the water table(see Figure 2) > <br /> No MTBE is found in.vadose zone soil. r <br /> ;t <br /> Areal extent ofsoil contamminated with fuel hydrocarbons is shown rr Figure�; <br /> Operations.0both former service station locations were likely responsible for <br /> contaminatson of soil above the water table.. <br /> #. <br /> 1 <br />