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1 <br /> 16 WATER PROOF WELL BOX <br /> ' GROUND LEVEL �f AIL � <br /> LOCKING WELL CAP <br /> WELL CASING <br /> 36 FT % <br /> CEMENT SEAL <br /> 1 <br /> ' 2 FT BENTONITE SEAL <br /> 2 FT <br /> FILTER PACK <br />' 5 FT <br /> Q STATIC GROUNDWATER LEVEL <br /> AL <br /> WELL SCREEN <br />' 15 FT <br /> BORING WALL <br />' END CAP <br /> NOT TO SCALE <br /> BENTONITE SEAL <br />' FIGURE 4 <br /> TYPICAL MONITORING WELL CONSTRUCTION DETAIL <br />