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6 INCH I.D. SCH 40 <br />STEEL OUTER CASING <br />2 <br />2 FT <br />LOCKING COVER <br />1 <br />T <br />4 IN. DIA. SCH 40 <br />STEEL GUARD POSTS <br />(3 IF REQUIRED) <br />T <br />CONCRETE <br />2 FT <br />2 =T <br />4 FT <br />NEAT CEMENT GROUT <br />2 INCH I.D. SCH 40 <br />FLUSH THREADED <br />PVC WELL CASING <br />BENTONITE SEAL <br />(1 FT THICK) <br />2 INCH I.D., NO. 10 SLOT, <br />FLUSH THREADED, <br />PVC VEE -WIRE SCREEN <br />(OR APPROVED EQUIVALENT) <br />1 FT +1- <br />VARIES <br />3 FT +1- <br />10 FT <br />#40 RED FLINT FILTER PACK <br />Monitoring Well.dwg <br />1 FT <br />8 1/4 IN. DIA <br />BOREHOLE <br />TYPICAL WELL CONSTRUCTION <br />PROJECT #: 20607 <br />AMBIENT GROUNDWATER QUALITY <br />MONITORING NETWORK <br />TWIN CITIES METRO AREA <br />JAN 2011 <br />FIGURE <br />2 <br />