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EFCI Southfield Mine — 2011 Annual Hydrology Report April 25, 2012 <br />Parameter Units <br />NPDES 002 (POND NO. 4 - Mine Area) <br />Discharge 1 Ac -Ft <br />pH (Min.) units <br />pH (Max) units <br />TSS (Ave) mg /I <br />Total Iron (Ave) mg /I <br />Set. Solids (Ave.) m1/1/hr <br />NPDES 004 (POND NO 5 - Mine Area) <br />Discharge Ac -Ft <br />pH (Min.) <br />pH (Max ) <br />TSS (Ave ) <br />Total Iron (Ave.) <br />NPDES 001 (POND NO. L1 - Loadout Area) <br />Discharge <br />pH (Mtn.) <br />pH (Max ) <br />TSS (Ave ) <br />Total Iron (Ave.) <br />Set Solids (Ave.) <br />units <br />units <br />mg /I <br />mg/I <br />Ac -Ft <br />units <br />units <br />mg /I <br />mg /I <br />m1/1/hr <br />NPDES 002 (POND NO L2 - Loadout Area) <br />Discharge Ac -Ft <br />pH (Min.) <br />pH (Max ) <br />TSS (Ave.) <br />Total Iron (Ave.) <br />Set. Solids (Ave ) <br />2011 AHR text doc <br />units <br />units <br />mg /I <br />mg /I <br />m1/1/hr <br />TABLE 2 <br />NPDES DISCHARGES SUMMARY <br />2011 2011 2011 <br />1st QTR 2nd QTR 3rd QTR 1 4th QTR Ave Quality Tot. Quantity <br />00 00 00 <br />00 <br />00 <br />00 00 <br />00 <br />00 <br />00 <br />0.0 <br />00 <br />0.0 0.0 0.0 0 0 <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />n/a <br />0.0 <br />0.0 <br />0.0 <br />0.0 <br />Total Discharges to Streams (Ac-Ft) 0 0 <br />otes. Mine Area Ponds 1 and 3 were reclaimed in 2002, therefore corresponding discharge points 001 and 005 have been <br />liminated and monitoring discontinued. <br />Page 4 <br />