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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 />1979 - 2012 <br />MIN. AVE. MAX. <br />pH (lab) <br />units <br />8.4 <br />8.5 <br />8.5 <br />I. 6.2 <br />8.2 <br />8.9 <br />Conductivity at 25C <br />umhos /cm <br />997 <br />973 <br />` 985 <br />` 210 <br />I. 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 />mg/I <br />670 <br />650 <br />` 660 <br />` 156 <br />I. 651 <br />1870 <br />Bicarbonate as CaCO3 <br />mq/I <br />296 <br />315 <br />` 306 <br />` 150 <br />` 349 <br />1100 <br />Calcium, dissolved <br />mg/I <br />49.5 <br />49.7 <br />` 49.6 <br />` 2.2 <br />` 11.2 <br />` 58.5 <br />Chloride <br />mg/I <br />24 <br />25 <br />25 <br />3 <br />` 17 <br />` 25 <br />Magnesium, dissolved <br />mg/I <br />11.6 <br />11.5 <br />11.6 <br />0.0 <br />` 1.8 <br />` 13.2 <br />Nitrogen, ammonia <br />mg/I <br />0.00 <br />0.00 <br />` 0.00 <br />` 0.00 <br />0.24 <br />5.50 <br />Nitrogen, nitrate nitrite <br />mg/I <br />0.35 <br />0.39 <br />` 0.37 <br />` 0.04 <br />` 0.37 <br />` 0.64 <br />Phosphorus, ortho <br />mg/I <br />0.03 <br />0.03 <br />0.03 <br />` 0.00 <br />0.06 <br />` 0.23 <br />Phosphorus, total <br />mg/I <br />` 0.00 <br />` 0.06 <br />` 0.07 <br />Sodium, dissolved <br />mg/I <br />175 <br />172 <br />` 174 <br />` 29 <br />` 241 <br />` 652 <br />Sulfate <br />mq/I <br />191 <br />188 <br />` 190 <br />` 10 <br />` 175 <br />348 <br />Arsenic, dissolved <br />mg/I <br />0.0000 <br />0.0014 <br />` 0.0050 <br />Cadmium, dissolved <br />mg /I <br />` 0.00 <br />` 0.00 <br />` 0.01 <br />Iron, dissolved <br />mg/I <br />0.00 <br />0.00 <br />0.00 <br />0.00 <br />I. 0.81 <br />` 24.20 <br />Manganese, dissolved <br />mg/I <br />0.000 <br />0 000 <br />0.000 <br />` 0.000 <br />` 0.033 <br />0.697 <br />Mercury, dissolved <br />mg/I <br />` 0.0000 <br />` 0.0000 <br />'' 0.0005 <br />Selenium, dissolved <br />mg/I <br />` 0.000 <br />` 0.002 <br />P 0.053 <br />Znc, dissolved <br />mg/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 />EFCI Southfield Mine - 2012 Annual Hydrology Report <br />2012 AHR text doc <br />Page 15 <br />April 18, 2013 <br />