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LOCKING WELL COVER <br /> CONCRETE APRON <br /> LOCKING CAP <br /> NEAT CEMENT <br /> BLANK 40 PVC CASING (SCHEDULE 40) <br /> 0 — 5 FEET <br /> BENTONITE PLUG 2 FEET <br /> FILTER PACK (#3 SAND) <br /> 0 020 SLOTTED PVC SCREEN (SCHEDULE 40) <br /> 5 — 20 FEET <br /> TOTAL DEPTH 20 FEET <br /> CAP <br /> 8" BOREHOLE DIAMETER <br /> VAPOR EXTRACTION WELL DESIGN <br /> ALL DEPTHS RELATIVE TO SURFACE GRADE <br /> NOT TO SCALE <br /> VAPOR EXTRACTION WELL DESIGN ® Advanced <br /> R �� Geo Environmental, Inc <br /> RIPON FARM SERVICE <br /> ar fvartavn c.lrrar�,. <br /> 228'71 SOUTH HIGHWAY 99 PROJECT NO 95-0137 FILE 95-0137 FIGURE <br /> RIPON, CALIFORNIA DATE 20 JANUARY 1999 DRAWN BY KM <br />