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TABLE : 5A <br />TWENTYMILE COAL, LLC <br />2015 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />Site: 087758 (008-77-58, Bedrock Well) DATUM = 6719.8 <br />Location Code <br />87758 <br />Chemical Name <br />Units <br />Average <br />Maximum <br />Minimum <br />Standard <br />Deviation <br />ALKALINITY as CaCO3 <br />MG/L <br />429.17 <br />459 <br />411 <br />17.54 <br />BICARBONATE as HCO3 <br />MG/L <br />519 <br />559 <br />494 <br />22.1 <br />CADMIUM <br />UG/L <br />0.5 <br />0.5 <br />0.5 <br />0 <br />CALCIUM <br />MG/L <br />98.26 <br />131 <br />51.2 <br />29.58 <br />CARBONATE as CO3 <br />MG/L <br />12.3 <br />20 <br />4 <br />8.25 <br />CONDUCTIVITY SPC LAB <br />UMS/CM <br />1680 <br />1770 <br />1520 <br />93.9 <br />HYDROXIDE as OH <br />MG/L <br />20 <br />20 <br />20 <br />0 <br />IRON <br />UG/L <br />71 <br />130 <br />30 <br />36 <br />LEAD <br />UG/L <br />200 <br />200 <br />200 <br />0 <br />MAGNESIUM <br />MG/L <br />67.93 <br />91.8 <br />35.6 <br />20.7 <br />MANGANESE <br />UG/L <br />17 <br />30 <br />10 <br />6.7 <br />MERCURY <br />UG/L <br />1 <br />1 <br />1 <br />0 <br />MOLYBDENUM <br />UG/L <br />60 <br />100 <br />10 <br />30 <br />NITROGEN NO3-NO2 <br />MG/L <br />0.066 <br />0.1 <br />0.02 <br />0.037 <br />PH TEMPERATURE <br />DEG -C <br />22.8 <br />26 <br />20 <br />0.133 <br />PH LAB <br />S.U. <br />8.18 <br />8.3 <br />8 <br />0.139 <br />PHOSPHATE ORTHO <br />MG/L <br />0.04 <br />0.05 <br />0.02 <br />0.02 <br />SELENIUM <br />UG/L <br />0.4 <br />0.5 <br />0.3 <br />0.11 <br />SODIUM <br />MG/L <br />201 <br />278 <br />175 <br />38.2 <br />SOLIDS (TDS) <br />MG/L <br />1180 <br />1280 <br />1040 <br />96.5 <br />SULFATE <br />MG/L <br />520 <br />600 <br />380 <br />87 <br />