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FIGURE 5 Schematic of Monitoring Wells Construction <br /> to Test the Upper Water Strata <br /> i <br /> Water Tight Lid <br /> Ground Surface <br /> Locking ��'•°:o Weil.Cover <br /> Cap <br /> Cement <br /> a <br /> Bentonite Annular <br /> I <br /> Seal <br /> t r,, Well Casing <br /> E <br /> Filter Fack <br /> Ground Water Level <br /> Ferforated t <br /> �;\ Casing t <br /> Aquifer <br /> _ Min.&inch <br /> =_ Borehole <br /> End Cap <br /> Clay (Aquitard) \\\ <br /> s — -- --- ---- --- ------------- .Typical Monitoring Well Construction ------------- --- - -- ----- -------- -- <br /> `_J <br /> bor <br />