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— FIGURE b Schematic of Monitoring Well Designed <br /> to Test Lower Aquifers <br /> f <br /> Water Tight Lid <br /> Ground surface <br /> Locking <br /> _ <br /> Cap \ b#A baja di ell Cover E <br /> a� <br /> bQ <br /> i t Cement Insulator <br /> Casing <br /> �.f UpperAquifer p¢ <br /> r r Bentonite <br /> Annular ' <br /> Seal <br /> - Clay (Aquitard) Drive Shoe <br /> = Perforated Well <br /> Casing <br /> Lower Aquifer = <br /> o Filter Pack <br /> End Cap <br /> Clay (Aquitard) <br />