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' CONCRETE APRON TRAFFIC RATED WELL COVER <br />' SURFACE GRADE WATER-TIGHT, LOCKING WELL CAP <br /> ;• GROUT SEAL (PORTLAND CEMENT) <br /> SCHEDULE 40, 2-INCH DIAMETER WELL CASING 0 5 - 1 FEET BSG <br />' BLANK WELL CASING I <br /> 0 5-5 FEET BENTONITE PLUG <br />' 1-3 FEET BSG <br /> L <br /> V <br />' FILTER PACK (#{2/12 SAND) <br /> ` 3-15 FEET BSG <br /> 0 010-INCH SLOTTED PVC WELL CASING <br /> 5-15 FEET BSG <br /> 1 <br /> r , <br /> r <br /> r <br /> THREADED BOTTOM WELL PLUG <br /> I <br /> ALL DEPTHS RELATIVE TO SURFACE GRADE 8-INCH DIAMETER BORING <br /> INOT TO SCALE <br /> MONITORING WELL DESIGN - MW-4 Advanced <br /> I GeoEnvironmental, Inc. <br /> FORMER CURTISS PONTIAC-BUICK arnufa••n Q•a.1hm" <br /> 2450 T O S T E ROAD PR01ECr NO AGE-NC-8B-02E4 FILE au..m FIGURE <br /> TRACY, CALIFORNIA DATE 19 MAY 2003 DRAWN BY KMM <br />