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Ground Surface <br /> ZZ <br /> zz ZZ Z.- ZZ <br /> zz zz zz zz <br /> Z- --Z <br /> zz Z� ZZ z <br /> zz z z� <br /> zz z :z- <br /> go, zz Z zz <br /> z:z z zz <br /> zz z zz <br /> ZZ Cement Grout 0-90 ft bgs <br /> 16"o Borehole <br /> z� <br /> zz ::Z 10"o 304 Stainless Steel Well Casing <br /> ZZ — <br /> ZZ ZZ <br /> zz <br /> zz <br /> zz <br /> Bentonite Seal <br /> 5' <br /> Transition Sand <br /> 5' <br /> SCHEMATIC DIAGRAM <br /> NOT TO SCALEFilter Pack <br /> ....... .. ........ <br /> 10'' <br /> X <br /> Top of Screen 110 ft bgs <br /> 10'0 304 Stainless Steel Well Screen <br /> 75' <br /> Bottom of Screen 185 ft bgs <br /> Total Borehole Depth 190 ft bgs <br /> 5' <br /> Well Design Subject to Change —L <br /> PROPOSED EW-18B EXTRACTION WELL DESIGN Figure 5 <br /> Geosyntec' FORMER OCCIDENTAL CHEMICAL CORORATION November 2018 <br /> L'Ot"ISLIhailt, LATHROP FACILITY, CA SAC245 <br />