2013-02-13_REPORT - C1981041 (2)

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NPDES POINT 016 Snowcap Coal Company, Inc. Chemical Analysis SU -4 Field Parameters 8/12/2009 8/12/2010 10/12/2010 8/11/2011 8/20/2012 pH SU 7 7.7 6.9 7.4 7.2 Conductivity umhos /cm 2200 2000 2000 1980 2000 Temperature (C) 22.9 23.1 23 23.4 22.8 Laboratory Results 8/12/2009 8/12/2010 10/12/2010 8/11/2011 8/20/2012 Carbonate (CO mg /I 8.43 12.65 0 <5.0 Aluminum, Dissolved mg /I <0.2 <0.2 0.37 <0.05 Arsenic, Dissolved mg /I 0.038 0.013 0.03 <0.0002 Barium, Dissolved mg /I 0.034 19.1* 0.391 1.1 0.438 Boron, Dissolved mg /I 1.46 1.2 0.16 0.776 Cadmium, Dissolved mg /I 0.001 0.01 0.003 0.00015 Calcium, Dissolved mg /I 6.57 5.55 6.74 14.1 Chloride, Dissolved mg /I 2.76 64.66* 17.02 4.96 21 Chromium, Dissolved mg /I <0.001 <0.001 <0.01 <0.002 Copper, Dissolved mg /I <0.003 0.046 0.002 0.0049 Fluoride, Dissolved mg /I 0.61 7.11* 4.81 0.23 1.5 Hardness, (as Ca Co3) mg /I 46.47 42.87 39.36 64.5 Iron, Dissolved mg /I 0.02 0.02 <0.01 <0.04 Lead, Dissolved mg /I 0.01 <0.01 <0.05 <0.0005 Magnesium, Dissolved mg /I 7.3 7.06 5.47 7.12 Manganese, Dissolved mg /I 0.04 0.03 0.04 0.0359 Mercury, Dissolved mg /I 0.00007 0.00017 0.00004 <0.0001 Molybdenum, Dissolved mg /I 0.047 0.045 0.15 0.0016 Nickel, Dissolved mg /I 0.04 0.04 0.06 <0.002 Nitrate (NO3 mg /I 2.17 0.33 <0.3 <0.23 Phosphate (PO as P) mg /I 0.125 0.11 0.11 0.11 Potassium, Dissolved mg /I 4.5 3.84 5.1 3.07 Selenium, Dissolved mg /I 0.026 0.152 0.002 <0.0004 Sodium, Dissolved mg /I 339 601 439 521 Solids, Total Dissolved mg /I 1267 1148 1344 1310 Solids, Total Suspended mg /I 4 6 14 <5.0 Sulfate, SO4 mg /I 47.75 22.64 54.74 84.5 Zinc, Dissolved mg /I 0.01 <0.005 0.02 <0.01 Ammonia, Nitrogen, NH mg /I 1.12 <0.1 <0.05 0.7 Bicarbonate (HCO3 mg /I 1058.22 990.76 153.32 1010 SAR Ratio 21.64 39.92 30.01 28.2 NOTE: 10/12/10 samples were taken due to higher than normal results rec'd from 8/12/10 sample *possible lab error 12AHR 02/13