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LOCKING WELL COVER <br /> CONCRETE APRON <br /> • <br /> LOCKING CAP <br /> NEAT CEMENT <br /> BLANK 40 PVC CASING (SCHEDULE 40) <br /> 0 — 25 FEET <br /> BENTONITE PLUG 2 FEET <br /> 0 020 SLOTTED PVC SCREEN (SCHEDULE 40) FILTER PACK {#3 SAND} <br /> 25 — 30 FEET <br /> TOTAL DEPTH 30 FEET <br /> CAP — g" BOREHOLE DIAMETER <br /> AIR—SPARGING WELL DESIGN <br /> ALL DEPTHS RELATIVE TO SURFACE GRADE <br /> NOT TO SCALE <br /> AIR SPARGING WELL DESIGN ® Advanced <br /> ,I: GeoEnvironmental, Inc <br /> RIPON FARM SERVICE arN�m�a cablar.01r <br /> 22871 SOUTH HIGHWAY 99 PROJECT NO 95-0137 FILE 95-0137 FIGURE <br /> RIPON, CALIFORNIA DATE 20 JANUARY 1999 DRAWN BY KMM 6 <br />