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TABLE : 22A <br />TWENTYMILE COAL, LLC <br />2015 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />PERIOD OF RECORD <br />Site: 08AVII (008 -AV - Alluvial Well) DATUM = 6676.84 <br />Location Code <br />08AV1 <br />Chemical Name <br />Units <br />Sample Count <br />Mean <br />Median <br />Maximum Minimum <br />Alkalinity as CaCO3; <br />@ pH 4.5 <br />MG/L <br />7 <br />463 <br />422 <br />710 i <br />272 <br />Ammonia Nitrogen <br />MG/L <br />6 <br />0.0455 <br />0.0325 <br />0.104 <br />0.001 <br />Cadmium Dissolved <br />UG/L <br />7 <br />4.4 <br />0.5 <br />20 <br />0.1 <br />Cadmium Tot. Rec. <br />UG/L <br />1 <br />0.4 <br />0.4 <br />0.4 <br />0.4 <br />Calcium Dissolved <br />MG/L <br />9 <br />221 <br />217 <br />255 <br />182 <br />Carbonate as CO3 <br />MG/L <br />5 <br />2 <br />2 <br />8 <br />0 <br />Chl ride <br />MG/L <br />2 <br />14 <br />14 <br />14 <br />13 <br />H d oxide as OH <br />MG/L <br />1 <br />2 <br />1 2 <br />2 <br />2 <br />Iron Dissolved <br />UG/L <br />8 <br />200 <br />140 <br />580 <br />50 <br />Iro Tot. Rec. <br />UG/L <br />1 <br />3740 <br />3740 <br />3740 <br />3740 <br />Lead Dissolved <br />UG/L <br />4 <br />20 <br />20 <br />30 <br />20 <br />Magnesium Dissolved <br />MG/L <br />9 <br />83.51 <br />87.6 <br />103 <br />57 <br />Manganese Dissolved <br />UG/L <br />8 <br />1290 <br />462 <br />4500 <br />10 <br />Manganese Tot. Rec. <br />UG/L <br />1 <br />140 <br />140 <br />140 <br />140 <br />Mercury Dissolved <br />UG/L <br />7 <br />0.24 <br />0.2 <br />0.4 <br />0.2 <br />Molybdenum Dissolved <br />UG/L <br />4 <br />20 <br />10 <br />50 <br />10 <br />Molybdenum Tot. Rec. <br />UG/L <br />1 <br />50 <br />50 <br />50 <br />50 <br />NO3-NO2 Nitrogen <br />MG/L <br />9 <br />0.967 <br />0.25 <br />5.85 <br />0.02 <br />Phosphorus, Ortho hos horus <br />MG/L <br />8 <br />0.4161 <br />0.2815 <br />1.76 <br />0.038 <br />Selenium Dissolved <br />UG/L <br />7 <br />3.6 <br />2 <br />14 <br />1 <br />Selenium Tot. Rec. <br />UG/L <br />1 <br />1 <br />1 <br />1 <br />1 <br />Silver Tot. Rec. <br />UG/L <br />1 <br />0.5 <br />0.5 <br />0.5 <br />0.5 <br />Sodium Dissolved <br />MG/L <br />9 <br />101.4 <br />116 <br />127 <br />68 <br />Sodium Adsorption Ratio <br />RATIO <br />9 <br />1.4569 <br />1.5911 <br />1.7456 <br />1.0631 <br />Solids Total Suspended <br />MG/L <br />1 <br />208 <br />208 <br />208 <br />208 <br />Specific Conductivity, Lab <br />UMS/CM <br />5 <br />1770 <br />1770 <br />2190 <br />1040 <br />Sulfates <br />MG/L <br />9 <br />616 <br />760 <br />889 <br />280 <br />Total Dissolved Solids Lab <br />MG/L <br />9 <br />1270 <br />1280 <br />1788 <br />632 <br />Zinc Tot. Rec. <br />UG/L <br />1 <br />150 <br />150 <br />150 <br />150 <br />2016 AHR FC POR <br />