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EFCI Southfield Mine - 2012 Annual Hydrology Report April 18, 2013 <br />2012 AHR text doc Page 15 <br />TABLE 5 <br />MW -23 WATER QUALITY DATA <br />PARAMETER <br />UNITS <br />2012 Sample Dates: <br />06/13/12 11/28/12 <br />2012 <br />AVERAGE <br />MIN. <br />1979-2012 <br />AVE. <br />MAX. <br />H lab <br />units <br />8.4 <br />8.5 <br />8.5 <br />6.2 <br />8.2 <br />8.9 <br />Conductivity at 25C <br />umhos/cm <br />997 <br />973 <br />985 <br />210 <br />1005 <br />2820 <br />Temperature field <br />deg C <br />15.9 <br />13.6 <br />14.8 <br />10.0 <br />14.7 <br />24.5 <br />Solids, total dissolved <br />m I <br />670 <br />650 <br />660 <br />156 <br />651 <br />1870 <br />Bicarbonate as CaCO3 <br />m I <br />296 <br />315 <br />306 <br />150 <br />349 <br />1100 <br />Calcium, dissolved <br />m I <br />49.5 <br />49.7 <br />49.6 <br />2.2 <br />11.2 <br />58.5 <br />Chloride <br />m I <br />24 <br />25 <br />25 <br />3 <br />17 <br />25 <br />Magnesium, dissolved <br />m I <br />11.6 <br />11.5 <br />11.6 <br />0.0 <br />1.8 <br />13.2 <br />Nitrogen, ammonia <br />m I <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.24 <br />5.50 <br />Nitrogen, nitrate nitrite <br />m I <br />0.35 <br />0.39 <br />0.37 <br />0.04 <br />0.37 <br />0.64 <br />Phosphorus, ortho <br />m I <br />0.03 <br />0.03 <br />0.03 <br />0.00 <br />0.06 <br />0.23 <br />Phosphorus, total <br />m I <br />0.00 <br />0.06 <br />0.07 <br />Sodium, dissolved <br />m I <br />175 <br />172 <br />174 <br />29 <br />241 <br />652 <br />Sulfate <br />m I <br />191 <br />188 <br />190 <br />10 <br />175 <br />348 <br />Arsenic, dissolved <br />m I <br />0.0000 <br />0.0014 <br />0.0050 <br />Cadmium, dissolved <br />m /I <br />0.00 <br />0.00 <br />0.01 <br />Iron, dissolved <br />m I <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />0.81 <br />24.20 <br />Manganese, dissolved <br />m I <br />0.000 <br />0 000 <br />0.000 <br />0.000 <br />0.033 <br />0.697 <br />Mercury, dissolved <br />m I <br />0.0000 <br />0.0000 <br />0.0005 <br />Selenium, dissolved <br />m I <br />0.000 <br />0.002 <br />0.053 <br />Zinc, dissolved <br />m I <br />0.00 <br />0.03 <br />0.24 <br />NOTES: <br />1. Zero data values = parameter was analyzed for but not detected. <br />2. Blank data field = no data. <br />2012 AHR text doc Page 15 <br />