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SYS_LOC_CODE: <br />09794 <br />CHEMICAL NAME <br />UNIT <br />AVERAGE MAXIMUM MINIMUM STDEV VAR <br />Alkalinity as CaCO3, @ pH 4.5 <br />MG /L <br />357.50 <br />361 <br />354 <br />4.9497 <br />24.50 <br />Bicarbonate as HCO3 <br />MG /L <br />414.50 <br />423 <br />406 <br />12.0208 <br />144.50 <br />Cadmium <br />MG /L <br />0.0005 <br />0.0005 <br />0.0005 <br />0 <br />0 <br />Calcium <br />MG /L <br />12.95 <br />13.40 <br />12.50 <br />0.6364 <br />0.4050 <br />Carbonate as CO3 <br />MG /L <br />10.50 <br />12 <br />9 <br />2.1213 <br />4.50 <br />Hydroxide as OH <br />MG /L <br />20 <br />20 <br />20 <br />0 <br />0 <br />Iron <br />MG /L <br />0.0250 <br />0.03 <br />0.02 <br />0.0071 <br />0.0001 <br />Lead <br />MG /L <br />0.20 <br />0.20 <br />0.20 <br />0 <br />0 <br />Magnesium <br />MG /L <br />7.55 <br />8.10 <br />7 <br />0.7778 <br />0.6050 <br />Manganese <br />MG /L <br />0.03 <br />0.03 <br />0.03 <br />0 <br />0 <br />Mercury <br />MG /L <br />0.0010 <br />0.0010 <br />0.0010 <br />0 <br />0 <br />Molybdenum <br />MG /L <br />0.05 <br />0.05 <br />0.05 <br />0 <br />0 <br />NO3 -NO2 Nitrogen <br />MG /L <br />0.0650 <br />0.10 <br />0.03 <br />0.0495 <br />0.0025 <br />pH Temperature <br />DEG -C <br />22.50 <br />23 <br />22 <br />0.7071 <br />0.50 <br />pH, Lab <br />S.U. <br />8.40 <br />8.50 <br />8.30 <br />0.1414 <br />0.02 <br />Phosphorus <br />MG /L <br />0.02 <br />0.02 <br />0.02 <br />0 <br />0 <br />Phosphorus, Orthophosphorus <br />MG /L <br />0.02 <br />0.02 <br />0.02 <br />0 <br />0 <br />Selenium <br />MG /L <br />0.0004 <br />0.0005 <br />0.0003 <br />0.0001 <br />0 <br />Sodium <br />MG /L <br />202.50 <br />212 <br />193 <br />13.4350 <br />180.50 <br />Specific Conductivity, Lab <br />UMS /CM <br />952.50 <br />983 <br />922 <br />43.1335 <br />1860.50 <br />Sulfates <br />MG /L <br />145 <br />150 <br />140 <br />7.0711 <br />50 <br />Total Dissolved Solids, Lab <br />MG /L <br />610 <br />610 <br />610 <br />0 <br />0 <br />TABLE : 2A <br />TWENTYMILE COAL, LLC <br />2011 ANNUAL HYDROLOGY REPORT <br />PERIOD OF RECORD DATA <br />Site: 09794 (009 -79-4, Bedrock Well) DATUM = 7004.54 <br />