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1 <br />1 <br />1 <br /> <br />1 <br />1 <br /> <br /> <br /> <br />Upon completion of the boring, P.V.C. well screens are inserted inside the drill rod to th <br />full length of the hole. <br />s. .. .. <br />~* F:~ .C <br />_ ''_~.~:•.. ,..FLOATING~Lt~ ~`. ~' r v, F <br />Floating locking piston is inserted, holding the screens in place by hydraulic pressu <br />while the drill rod is withdrawn. <br />t ~ ' ~ ~ ~ ~ ~~~4 <br />x ~• ~ <br />(Completed drain installation. Screens of fine slot size prevent clogging and format <br />mining. Collector lines or ditches can be installed. <br />METHOD OF HORIZONTAL DRAINS INSTALLATION <br />NOT TO SCALE <br />GEO-HYDRO CONSULTING,INC. <br />PLATE 13 <br />