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' WELL LOG WELL No. EW-4 <br /> PROJECT NAME- 151 SOUTH MAIN STREET GROUNDWATER DEPTH (initial) »18 FT. <br /> ROJECT LOCATION MANTECA, CALIFORNIA GROUNDWATER DEPTH (static) <br /> TOTAL DEPTH 30 FT. <br /> FIELD DATE 10/9/97 DRILL METHOD HOLLOW STEM AUGER COMPLETED DEPTH 30 FT. <br /> ' DRILLER Exploration Geo BORE DIAMETER 12 INCHES SURFACE ELEVATION <br /> LOGGER RICHARD GARLOW CASING DIAMETER 4.5 INCHES WELL ELEVATION <br /> 0 W <br /> LITHOLOGY iCL <br /> n CONSTRUCTION <br /> ul <br /> a 0 o y o DIAGRAM <br /> im <br /> 0 <br /> 3" Asphalt,6"Baserock SP T <br /> SAND (SP) Sand, reddish brown,trace of 3 <br /> clay, fine grained sand, moist , <br /> rJ SP CL <br /> lV <br /> SAND (SPY Sand, light brown, trace of clay, 9 < <br /> fine grained sand, moist <br /> ' = w <br /> uj <br /> 12 - <br /> _ m <br /> ' CL y — <br /> 15 _ <br /> s = <br /> N <br /> CLAY (CL) Silty clay,light grayish brown. 100 18 <br /> 10% - 20%fine grained sand,moist CL <br /> W - y <br /> 71 � <br /> CLAY (CL) Sandy clay, gray brown,20% - 21 N <br /> 30% fine grained sand, moderate plasticity, — <br /> ' moist to very moist <br /> CL 24 <br /> ' I <br /> d <br /> CLAY (CL) Silty clay, gray brown, moderate 27 <br /> plasticity,wet, large root (wood fragments) <br /> ' at-28 feet m <br /> CM <br /> 30 <br /> TOTAL DEPTH 30 FEET <br /> ON-SITE PROJECT NUMBER 701-1.2 <br /> ' TECHNOLOGIES PAGE 1 OF 1 <br />