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<br /> <br />MONITORING WELL MW-9 <br />Record Drawing <br />4' X 4' concrete pad Protective Steel Casing <br />with Locking Steel Cover <br />4" dia. protective steel posts (4) <br />5' above ground surface and <br />+3. - imbedded in holes with concrete. <br />Posts placed on 10' centers. <br />Ground Surface <br />a' - _ \ u <br />5' CemenUBentonite Grout <br />Bentonite Pellets <br />Blank Sch. 40 PVC Casing <br />Sandstone (4" dia.) <br />(Codell) ~ ~ <br /> ~-- 8" dia. Borehole <br /> <br /> <br /> Filter Pack <br />(Colorado Silica 10-20) <br /> <br /> Slotted Sch. 40 PVC <br />(4") (0 <br />010" slots) <br />37' - <br /> <br />Shale 42' - <br />(Blue Hill) 43' - . <br />Blank Sch. 40 PVC Casing <br />(4" dia.) <br />NOT TO SCALE <br />