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12-INCH DIAMETER, TRAFFIC RATED WELL BOX <br />' BRASS FLOW VALVE/PRESSURE GAUGE <br /> j COPPER SAMPLING PORT <br /> SURFACE GRADE - CONCRETE SURFACE4-INCH DIAMETER SANITARY SEAL <br />' PROCESS PIPING AND ELECTRICAL CONDUIT <br />' 4-INCH DIAMETER WELL CASING <br /> NEAT CEMENT 1 TO 5 FEET <br />' BLANK 40 PVC SCREEN (SCHEDULE 40) <br /> 0 5 TO 9 5 FEET <br />' BENTONITE PLUG 5 TO 8 FEET <br /> �Y <br /> t� <br /> • �r� <br /> FILTER PACK (#3 SAND) 8 TO 35 FEET <br /> 0 020 SLOTTED PVC SCREEN (SCHEDULE 40) <br /> 9 5 TO 345 FEET <br /> � rn <br /> 1 1+, <br /> 4---INCH DIAMETER PVC WELL CAP �• <br /> r` <br />' 4-INCH DIAMETER GRUNDFOS PUMP (MODEL 5510) <br /> 27 TO 31 FEET <br />' 12-INCH BOREHOLE DIAMETER <br />' ALL DEPTHS RELATIVE TO SURFACE GRADE <br /> NOT TO SCALE <br /> EXTRACTION WELL DESIGN EW-9 A -4dv-?-,2c&d <br /> FLAG CITY CHEVRON GeoEnvlronmental, Inc <br /> of Northern Ca/iforniw <br /> 6421 7�CAPITOL AVENUE PROJECT NO ACE-NC-96-0232 FILE EXTWELL9 FIGURE <br /> L O J J I, CALIFORNIA DATE 15 JANUARY 2000 1 DRAWN BY KMM 9 <br />