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EFCI Southfield Mine - 2010 Annual Hydrology Report May 30, 2011 <br />TABLE 10 <br />NEWLIN CREEK (DOWNSTREAM) WATER QUALITY DATA <br />(Monitoring Point NC-1) <br />PARAMETER UNITS 2010 Sample Dates: <br />2nd QTR. 4th QTR. 2010 <br />AVERAGE 1997 - 2010 <br />MIN. AVE. MAX. <br /> 4/27/10 No Flow <br />pH (field) units 8.4 8.4 7.6 8.4 10.0 <br />Conductivity field umhos/cm 169 169 83 148 275 <br />Temperature field de C 17.8 17.8 6.2 13.1 23.0 <br />Solids, total suspended m /I 6 6 0 17 68 <br />Solids, total dissolved m /I 110 110 110 123 180 <br />Oil and Grease (visual) es/no no no 0 0 0 <br />SAR in water m /I 0.30 0.30 0.00 0.25 0.37 <br />Bicarbonate as CaC03 mg/1 69 69 55 71 129 <br />Calcium TR m /I 17 21 38 <br />Chloride m /I 1 1 0 1 2 <br />Magnesium TR M g/1 4.2 5.6 8.9 <br />Nitrogen, nitrate nitrite m /I 0.63 0.63 0.00 0.09 0.63 <br />Selenium TR m /I 0.0 0.0 0.0 0.0 0.0 <br />Phosphorus, ortho m /I 0.03 0.03 0.01 0.02 0.04 <br />Sodium TR m /I 4 5 9 <br />Sulfate m /I 14 14 10 20 40 <br />Aluminum TR m /I 0.00 1.03 2.50 <br />Arsenic TR m g/1 0.0000 0.0002 0.0010 <br />Cadmium TR m /I 0.000 0.000 0.000 <br />Copper TR mg/I 0.00 0.00 0.00 <br />Iron TR m /I 0.25 0.99 1.85 <br />Lead TR m /I 0.00 0.00 0.00 <br />Manganese TR m /I 0.008 0.021 0.040 <br />Mercury T Mg/1 0.00 0.00 0.00 <br />Molybdenum TR m /I 0.00 0.00 0.00 <br />Zinc TR m /I 0.00 0.01 0.04 <br />NOTES: <br />1. Zero data values = parameter was analyzed for but not detected. <br />2. Blank data fields = no data. <br />2010 AHR text.doc <br />Page 20 <br />