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TABLE : 19A <br />TWENTYMILE COAL, LLC <br />2016 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />PERIOD OF RECORD <br />Site: 09S10 (009-S-10, Alluvial Well) DATUM = 6906.67 <br />LOCATION CODE <br />09$10 <br />Chemical Name <br />Units <br />Sample Count <br />Mean <br />Median Maximum Minimum <br />Alkalinity as CaCO3, @ pH 4.5 <br />MG/L <br />75 <br />438 <br />442 <br />512 <br />220 <br />Alkalinity,Bicarbonate as CaCO3 <br />MG/L <br />2 <br />518 <br />518 <br />519 <br />516 <br />Ammonia Nitrogen <br />MG/L <br />91 <br />0.257 <br />0'027 <br />3 <br />0.001 <br />Cadmium Dissolved <br />UG/L <br />103 <br />3.55 <br />0.5 <br />33 <br />0.1 <br />Cadmium Tot. Rec <br />UG/L <br />1 <br />0.2 <br />0.2 <br />0.2 <br />0.2 <br />Calcium Dissolved <br />MG/L <br />119 <br />44.61 <br />43.9 <br />122 <br />22 <br />Carbonate as CO3 <br />MG/L <br />71 <br />9.234 <br />2 <br />39.6 <br />0 <br />Chloride <br />MG/L <br />30 <br />9.53 <br />7 <br />26 <br />1 <br />Hydroxide as OH <br />MG/L <br />40 <br />10 <br />10 <br />20 <br />2 <br />Iron Dissolved <br />UG/L <br />119 <br />135 <br />50 <br />4300 <br />5 <br />Iron Tot. Rec. <br />UG/L <br />1 <br />20 <br />20 <br />20 <br />20 <br />Lead Dissolved <br />UG/L <br />90 <br />80 <br />40 <br />200 <br />20 <br />Magnesium Dissolved <br />MG/L <br />119 <br />22.16 <br />21 <br />92 <br />2.1 <br />Manganese Dissolved <br />UG/L <br />118 <br />63.3 <br />31.5 <br />568 <br />5 <br />Manganese Tot. Rec. <br />UG/L <br />1 <br />10 <br />10 <br />10 <br />10 <br />Mercury Dissolved <br />UG/L <br />106 <br />0.411 <br />0.2 <br />3 <br />0.1 <br />Molybdenum Dissolved <br />UG/L <br />90 <br />51 <br />50 <br />300 <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 />118 <br />0.763 <br />0.765 <br />2.91 <br />0.02 <br />H Temperature <br />DEG -C <br />20 <br />22 <br />22 <br />25 <br />19 <br />H, Lab <br />S.U. <br />46 <br />8.13 <br />8.2 <br />8.6 <br />7.57 <br />Phosphorus, Ortho hos horus <br />MG/L <br />102 <br />0.0831 <br />0.03 <br />0.69 <br />0.005 <br />Selenium Dissolved <br />UG/L <br />105 <br />1.4 <br />1 <br />24 <br />0.1 <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 />119 <br />208 <br />210 <br />264 <br />20 <br />Sodium Adsorption Ratio <br />RATIO <br />83 <br />6.534 <br />6.78 <br />8.337 <br />0.213 <br />Solids Total Suspended <br />MG/L <br />1 <br />20 <br />20 <br />20 <br />20 <br />S ecik, Conductivity,Lab <br />UMS/CM <br />86 <br />1198 <br />1200 <br />1540 <br />920 <br />Sulfate <br />MG/L <br />119 <br />213 <br />21,0 <br />540 <br />110 <br />Total Dissolved Solids Lab <br />MG/L- <br />1 119 <br />768.6 <br />760 <br />1220 <br />615 <br />Zinc Tot. Rec. <br />UG/L <br />I 1 <br />20 <br />20 <br />20 <br />20 <br />2016 AHR FC POR <br />