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4% <br /> CONCRETE APRON TRAFFIC RATED WELL COVER <br /> WATER-TIGHT, LOCKING WELL CAP <br /> SURFACE GRADE <br /> T_ <br /> SCHEDULE 40, 2-INCH DIAMETER PVC CASING <br /> GROUT SEAL (PORTLAND) <br /> 0.5 to 46 FEET BSG <br /> BLANK WELL CASING <br /> 0.5 to 50 FEET <br /> TRANSITION SEAL (BENTONITE CHIPS) <br /> 46 to 48 FEET BSG <br /> FILTER PACK <br /> #3 SILICA SAND <br /> SCHEDULE 40, 0.020-INCH SLOTTED PVC CASING 48 to 70 FEET BSG <br /> 50 to 70 FEET BSG <br /> THREADED BOTTOM WELL PLUG 8-INCH BOREHOLE DIAMETER <br /> ALL DEPTHS RELATIVE TO SURFACE GRADE <br /> NOT TO SCALE <br /> PROPOSED MONITORING WELL CONSTRUCTION DETAILS & ,4dv-?J70&d <br /> 0 GeoEnvironmental, Inc. <br /> ARROYO S SMOG SHOP of colifoinia <br /> 3012 EAST WATERLOO ROAD PROJECT NO. AGE-NC-04-1168 FILE: WELL DSN FIGURE: <br /> STOCKTON, CALIFORNIA DATE: 15 MARCH 2005 DRAWN BY: KMM 3 <br />