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CONCRETE APRON TRAFFIC RATED WELL COVER <br /> WATER—TIGHT, LOCKING WELL CAP <br /> SURFACE GRADE <br />' SCHEDULE 40, 2—INCH DIAMETER WELL CASING <br /> GROUT SEAL (PORTLAND TYPE II) <br /> 1-42 FEET BSG <br /> BLANK WELL CASING <br />' 0.5-48 FEET <br /> TRANSITION SEAL (BENTONITE CHIPS) <br /> 42--45 FEET BSG <br /> _ yyn <br /> ti <br /> FILTER PACK (#2/12 LAPIS LUSTER SAND) <br /> 0.020—INCH SLOTTED PVC WELL CASING 45-70 FEET BSG <br /> i•a' <br /> 48-68 FEET HSG <br /> 1 .trl •6tr <br /> ' THREADED BOTTOM WELL PLUG <br /> ALL DEPTHS RELATIVE TO SURFACE GRADET- 8—INCH BOREHOLE DIAMETER = <br /> NOT TO SCALE <br /> ' GROUND WATER MONITORING WELL DESIGN: MW-4 Advanced <br /> GREWAL'S MARKET GeoEnviron , Inc. <br /> ur xnreeen ctaM�APAVA� <br /> ' 4100 EAST FREMONT STREET PROJECT NO.AGE-NC-97-0327 FILE: MW-4 lUGURE' <br /> STOCKTON, CALIFORNIA DATE: 28 ruNE 2002 DRA1rN BY: xmm 7 <br /> 1 <br />