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CATEGORY <br />PARAMETER <br />ANALYSIS TYPE <br />UNITS <br />OCT <br />NOV <br />DEC <br />JAN <br />Date <br />11/19/2010 <br />12/3/2010 <br />12/7/2010 <br />12/13/2010 <br />12/28/2010 <br />1/7/2011 <br />1/20/2011 <br />Water Level <br />FT <br />Flow <br />CFS <br />PHYSICAL <br />CONDUCTIVITY <br />LAB <br />UMS /CM <br />3500 <br />436 <br />3440 <br />434 <br />3850 <br />3750 <br />3650 <br />PH <br />LAB <br />S.U. <br />8.3 <br />8.5 <br />8.3 <br />8.4 <br />8.3 <br />8.2 <br />8.2 <br />SOLIDS <br />TOT -DISS, LAB <br />MG /L <br />3440 <br />3590 <br />3680 <br />3530 <br />SETTLEABLE <br />MG /L <br />SUSPENDED <br />MG /L <br />9 <br />< 20 <br />5 <br />< 20 <br />9 <br />19 <br />14 <br />CATIONS <br />CALCIUM <br />DISSOLVED <br />MG /L <br />388 <br />400 <br />378 <br />MAGNESIUM <br />DISSOLVED <br />MG /L <br />316 <br />338 <br />313 <br />SODIUM <br />DISSOLVED <br />MG /L <br />259 <br />231 <br />209 <br />SAR <br />NOT APPLICABLE <br />RATIO <br />2.39 <br />2.08 <br />1.95 <br />ANIONS <br />BICARBONATE <br />AS HCO3 <br />MG /L <br />536 <br />516 <br />521 <br />CARBONATE <br />AS CO3 <br />MG /L <br />7 <br />< 20 <br />< 20 <br />SULFATE <br />NOT APPLICABLE <br />MG /L <br />2170 <br />2190 <br />2120 <br />PRIMARY <br />CADMIUM <br />TOTAL RECOV <br />UG /L <br />< 1 <br />< 1 <br />0.3 <br />SELENIUM <br />TOTAL RECOV <br />UG /L <br />0.4 <br />0.4 <br />0.8 <br />SECONDARY <br />SILVER <br />TOTAL RECOV <br />UG /L <br />< 0.5 <br />< 0.5 <br />< 0.5 <br />ZINC <br />TOTAL RECOV <br />UG /L <br />< 100 <br />< 100 <br />130 <br />IRON <br />TOTAL RECOV <br />UG /L <br />690 <br />730 <br />710 <br />IRON <br />TOTAL <br />UG /L <br />MANGANESE <br />TOTAL RECOV <br />UG /L <br />820 <br />1320 <br />800 <br />TRACE METALS <br />MOLYBDENUM <br />TOTAL RECOV <br />UG /L <br />< 100 <br />< 100 <br />< 100 <br />NUTRIENTS <br />PHOSPHATE <br />ORTHO -DISS <br />MG /L <br />0.02 <br />0.03 <br />0.05 <br />NITROGEN <br />NO3 -NO2 <br />MG /L <br />0.23 <br />0.22 <br />0.33 <br />AMMIA -FREE <br />MG /L <br />0 08 <br />0.11 <br />< 0.5 <br />TABLE : 34 <br />TWENTYMILE COAL, LLC <br />2011 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />Site: 8 (8, Surface Samples) DATUM = 6789.95 <br />Note : <br />* Gage reading <br />by Norwest <br />Applied Hydrology <br />TABLE 34 <br />