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TABLE 12 <br />MAGPIE CREEK (DOWNSTREAM) WATER QUALITY DATA <br />(Monitoring Point MC -2) <br />PARAMETER <br />UNITS <br />2012 Sample Date: <br />2nd QTR. 4th QTR. <br />2012 <br />AVERAGE <br />1997 - 2012 <br />MIN. AVE. MAX. <br />No Flow <br />No Flow <br />No Flow <br />pH (field) <br />units <br />6.2 <br />7.4 <br />8.3 <br />Conductivity (field) <br />umhos /cm <br />53 <br />241 <br />360 <br />Temperature (field) <br />deg C <br />5.2 <br />14.0 <br />25.8 <br />Solids, total suspended <br />mg /I <br />64 <br />302 <br />678 <br />Solids, total dissolved <br />mg /I <br />110 <br />230 <br />340 <br />Oil and Grease (visual) <br />yes /no <br />0 <br />0 <br />0 <br />SAR in water <br />mg /I <br />0.00 <br />0.32 <br />0.56 <br />Bicarbonate as CaCO3 <br />mg /I <br />16 <br />21 <br />27 <br />Calcium <br />mg /I <br />4 <br />35 <br />57 <br />Chloride <br />mg /I <br />0 <br />1 <br />2 <br />Magnesium <br />mg /I <br />4.9 <br />14.7 <br />43.0 <br />Nitrogen, nitrate nitrite <br />mq /I <br />0.09 <br />0.41 <br />1.23 <br />Selenium <br />mg /I <br />0.0 <br />0.0 <br />0.0 <br />Phosphorus, ortho <br />mg /I <br />0.00 <br />0.05 <br />0.17 <br />Sodium <br />mg /I <br />3 <br />11 <br />17 <br />Sulfate <br />mg /I <br />30 <br />120 <br />190 <br />Aluminum <br />mg /I <br />9.12 <br />49.04 <br />188.00 <br />Arsenic <br />mg /I <br />0.0010 <br />0.0057 <br />0.0200 <br />Cadmium <br />mg /I <br />0.000 <br />0.001 <br />0.007 <br />Copper <br />mg /I <br />0.00 <br />0.07 <br />0.29 <br />Iron <br />mq /I <br />7.01 <br />48.46 <br />193.00 <br />Lead <br />mg /I <br />0.00 <br />0.00 <br />0.00 <br />Manganese <br />mg /I <br />0.171 <br />0.899 <br />3.490 <br />Mercury <br />mg/I <br />0.00 <br />0.00 <br />0.00 <br />Molybdenum <br />mg /I <br />0.00 <br />0.00 <br />0.00 <br />Zinc <br />mg /I . <br />0.0 <br />0.2 <br />0.7 <br />NOTES: <br />1. Zero data values = parameter was analyzed for but not detected. <br />2. Blank data fields = no data. <br />EFCI Southfield Mine - 2012 Annual Hydrology Report <br />April 18, 2013 <br />2012 AHR text.doc <br />Page 25 <br />