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GROUND SURFACE DEPTH FROM <br /> STEEL ENCLOSURE GROUND SURFACE <br /> (FEET) <br /> CONCRETE PAD LOCKABLE CAP <br /> 0 TOP OF RISER PIPE .5' <br /> TOP OF GROUT 1 <br /> GROUT THICKNESS <br /> 55' <br /> -.--TOP OF SEAL 56' <br /> SEAL THICKNESS <br /> 2' <br /> TOP OF SAND PACK 58' <br /> TOP OF SCREEN 60 <br /> SCREEN LENGTH 20' <br /> CASING DIAMETER 6.. <br /> SAND THICKNESS CASING TYPE SCH 80 PVC <br /> 22' SLOT SIZE .04" <br /> BOTTOM OF SCREEN 80' <br /> BOTTOM OF SILT TRAP <br /> BOREHOLE DEPTH 80 <br /> WELL NUMBER IW-BH2A & IW-BH1 <br /> DATE INSTALLED <br /> SURFACE ELEVATION PROJECT <br /> CASING ELEVATION DRILLER <br /> FIGURE 3 <br /> INJECTION WELL CONSTRUCTION <br /> FRENCH CAMP. CALIFORNIA <br />