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TABLE 6 <br />MW-65 WATER QUALITY DATA <br />PARAMETER <br />UNITS <br />2011 Sample Dates: <br />06/06/11 12/08/11 <br />2011 <br />AVERAGE <br />1984 - 2011 <br />MIN AVE. MAX. <br />pH (lab) <br />units <br />8.3 <br />8.4 <br />8 4 <br />7.2 <br />8.0 <br />8.8 <br />Conductivity at 25C <br />umhos /cm <br />1860 <br />1850 <br />1855 <br />770 <br />1855 <br />2320 <br />Temperature (field) <br />deg C <br />16.8 <br />10 9 <br />13 9 <br />9.4 <br />14.4 <br />19.0 <br />Solids, total dissolved <br />mg /I <br />1150 <br />1130 <br />1140 <br />1040 <br />1138 <br />1330 <br />Bicarbonate as CaCO3 <br />mg /I <br />735 <br />695 <br />715 <br />198 <br />736 <br />830 <br />Calcium, dissolved <br />mg /I <br />14.4 <br />16 0 <br />15 2 <br />0.0 <br />14 7 <br />36.0 <br />Chloride <br />mg /I <br />140 <br />153 <br />147 <br />60 <br />148 <br />630 <br />Magnesium, dissolved <br />mg /I <br />2.7 <br />2 9 <br />2 8 <br />2.0 <br />3.0 <br />8.0 <br />Nitrogen, ammonia <br />mg /I <br />1 76 <br />1 88 <br />1 82 <br />0.00 <br />1.23 <br />2.50 <br />Nitrogen, nitrate nitrite <br />mg /I <br />0 11 <br />0.11 <br />0 11 <br />0.00 <br />0.20 <br />2.66 <br />Phosphorus, ortho <br />mg /I <br />0.08 <br />0.14 <br />0 11 <br />0 00 <br />0 10 <br />0.64 <br />Phosphorus, total <br />mg /I <br />0.07 <br />0 11 <br />0 16 <br />Sodium, dissolved <br />mg /I <br />413 <br />402 <br />408 <br />370 <br />441 <br />543 <br />Sulfate <br />mg /I <br />12 <br />47 <br />30 <br />12 <br />76 <br />587 <br />Arsenic, dissolved <br />mg /I <br />0 0000 <br />0.0007 <br />0.0023 <br />Cadmium, dissolved <br />mg /I <br />0 00 <br />0.00 <br />0.01 <br />Iron, dissolved <br />mg /I <br />0.06 <br />0.00 <br />0 03 <br />0 00 <br />0.18 <br />1.81 <br />Manganese, dissolved <br />mg /I <br />0.114 <br />0.124 <br />0 119 <br />0.020 <br />0.118 <br />0.162 <br />Mercury, dissolved <br />mg /I <br />0.0000 <br />0.0002 <br />0 0033 <br />Selenium, dissolved <br />mg /I <br />0.000 <br />0.001 <br />0.012 <br />Zinc, dissolved <br />mg /I <br />0.00 <br />0.02 <br />0.06 <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 - 2011 Annual Hydrology Report April 25, 2012 <br />2011 AHR text.doc <br />Page 14 <br />