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ATTACHMENT 4 <br /> AMERICAN ENVIRONMENTAL MANAGEMENT CORPORATION <br /> MONITORING WELL DESIGN <br /> BELOW GROUND COMPLETION <br /> FRICTION CAP <br /> CONCRETE <br /> 0 <br /> ATER-TIGHT VAULT BOX <br /> COMPLETED 1 -2- ABOVE GRADE <br /> SCH. 40 2' PVC <br /> WELL CASING * <br /> CEMENT & BENTONITE <br /> GROUT SEAL <br /> MINIMUM 2' HYDRATED BENTONITE PLUG <br /> t:} <br /> 2'PVC FACTORY SLOTTED PIPE * <br /> (0.02' SLOT TYPICAL) <br /> .... .. <br /> FILTER SAND PACK <br /> (LONESTAR #2 SAND TYPICAL) <br /> THREADED BOTTOM CAP OR PLUG <br /> * NSF APPROVED: MEETS ASTM F 480 SPECS. <br />