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EFU Southfield Mine - 2010 Annual Hydrology Report May 30, 2011 <br />TABLE 9 <br />NEWLIN CREEK (UPSTREAM) WATER QUALITY DATA <br />(Monitoring Point NC-2) <br />PARAMETER UNITS 2010 Sample Date: <br />2nd QTR. 4th QTR. 2010 <br />AVERAGE 1997 - 2010 <br />MIN. AVE. MAX. <br /> 4/27/10 No Flow <br />pH (field) units 7.5 7.5 7.4 8.0 8.9 <br />Conductivity (field) umhos/cm 160 160 73 152 321 <br />Temperature (field) de C 8.4 8.4 3.4 6.7 13.3 <br />- <br />Solids, total suspended m /I 0 0 0 2 8 <br />Solids, total dissolved m /I 110 110 80 117 170 <br />Oil and Grease (visual) es/no no no 0 0 0 <br />SAR in water m /I 0.33 0.33 0.00 0.23 0.33 <br />Bicarbonate as CaCO3 m I 65 65 53 70 123 <br />Calcium TR m /I 15 21 37 <br />Chloride m /I 1 1 0 1 2 <br />Magnesium TR m /I 4.1 5.6 8.5 <br />Nitrogen, nitrate nitrite m /I 0.03 0.03 0.00 0.03 0.13 <br />- <br />Selenium TR mg/I 0.0 0.0 0.0 0.0 0.0 <br />Phosphorus, ortho m /I 0.02 0.02 0.01 0.03 0.08 <br />Sodium TR m /I 4 5 7 <br />Sulfate m /I 13 13 0 19 40 <br />Aluminum TR m /I 0.00 0.76 1.47 <br />Arsenic TR m /I 0.0000 0.0005 0.0020 <br />Cadmium TR mg/I 0.000 0.000 0.000 <br />Copper TR m /I 0.00 0.00 0.00 <br />Iron TR m /I 0.12 0.74 1.19 <br />Lead TR m /I 0.00 0.00 0.00 <br />Manganese TR m /I 0.000 0.052 0.320 <br />Mercury T m /I 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 0.03 <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 Page 19