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1 <br /> traffic rated, water-tight, flush- <br /> mounted well cover <br /> j ♦\r � \ 4 <br /> T \ \r\ <br />' r•; <br /> ,-,— locking watertight top cap <br /> ground surface <br /> .•r `r r~r •r• <br /> \ \ \ \ \ <br /> 1 r r r r r <br /> r r r <br /> •r r•r <br /> \ \ <br /> r r r <br /> \ t <br /> r r r <br /> t \ <br /> 1 r r r <br /> r r <br /> • \ <br /> •r \r <br /> r r <br /> ♦ r r <br /> 1 •♦ r•r <br /> cement sanitary sealr <br /> \r flush threaded sch 40 PVC <br /> r <br /> \r \ <br /> wellscreen and blank casing <br /> •r `r <br />' 1-2 feet bentonite pellets <br /> washed sand filter pack, 1 to 2 <br /> feet above top of screen <br /> machine slotted wellscreen <br /> I 5 feet above saturated zone <br /> and 10-15 feet below saturated <br /> zone <br /> typical 3 inch annulus =-- <br /> I == flush threaded PVC bottom cap <br /> I <br /> TYPICAL <br /> MONITORING WELL CONSTRUCTION <br /> IN CROSS SECTION <br /> Aqua Science Engineers Figure 8 <br />