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CEEMENT SEEAL <br /> '-!NCH PVC CASING <br /> T RAFFiC RATED BOX OR VAULT <br /> i <br /> PLAN <br /> WELL CAP <br /> I <br /> EXISTING GRADE x <br /> STEEL TRAFFIC BOX OR VAULT <br /> HOLLOW STEM AUGER SQREHOLE <br /> CEMENT SEAL <br /> 1-INCH BLANK PVC CASING, <br /> FLUSH THREADED SCHEDULE 40 <br /> i <br /> i <br /> I <br /> I <br /> f <br /> I <br /> i <br /> _- GROUNDWATER LEVEL (TYPICAL) <br /> - I <br /> i <br /> BENTONITE PELLET SEAL <br /> CLEAN IMPORTED SAND <br /> (#3 OR EQUIVALENT) N <br /> 1-INCH SLOTTED PVC CASING, <br /> FLUSH THREADED SCHEDULE 40 <br /> PVC BOTTOM CAP <br /> SECTION NOT TO SCALE <br /> I <br /> FIGURE 2. TYPICAL AIR SPARGING WELL <br /> CONSTRUCTION <br />