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TABLE : 20 <br />TWENTYMILE COAL COMPANY <br />2013 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />Site: 01S5 (001 -S -5, Alluvial Well) DATUM = 6804.95 <br />CATEGORY <br />PARAMETER <br />ANALYSIS TYPE <br />UNITS <br />OCT <br />NOV <br />DE <br />JAN <br />FE <br />MAR <br />APR <br />MAY <br />JUN <br />JUL <br />AUG <br />SEP <br />Date <br />11/9/2012 <br />3/7/13 <br />5/3/2013 <br />8/20/13 <br />Water Level <br />Field <br />Ft <br />3.21 <br />2.79 <br />1.43 <br />3.25 <br />Water elevation <br />Field <br />Ft <br />6801.74 <br />6802.16 <br />6803.52 <br />6801.7 <br />PHYSICAL <br />CONDUCTIVIT <br />LAB /Field <br />UMS /CM <br />2370 <br />2040 <br />2070 <br />2080 <br />PH <br />LAB /Field <br />S.U. <br />8.0 <br />1 <br />7.64 <br />1 <br />8.1 <br />1 <br />1 <br />7.76 <br />TEMPERATUR <br />Field <br />Degrees C <br />9.7 <br />7.9 <br />7.9 <br />10.1 <br />SOLIDS <br />TOT -DISS, LAB <br />MG /L <br />2060 <br />1530 <br />CATIONS <br />CALCIUM <br />DISSOLVED <br />MG /L <br />260 <br />186 <br />MAGNESIUM <br />DISSOLVED <br />MG /L <br />113 <br />78.6 <br />SODIUM <br />DISSOLVED <br />MG /L <br />218 <br />194 <br />ANIONS <br />BICARBONATE <br />AS HCO3 <br />MG /L <br />508 <br />479 <br />CARBONATE <br />AS CO3 <br />MG /L <br />< 20 <br />< 20 <br />SULFATE <br />NOT <br />MG /L <br />1050 <br />810 <br />PRIMARY <br />CADMIUM <br />DISSOLVED <br />UG /L <br /><1 <br />< 0.5 <br />LEAD <br />DISSOLVED <br />UG /L <br />< 200 <br />< 200 <br />MERCURY <br />DISSOLVED <br />UG /L <br />I <br /><1 <br /><1 <br />SELENIUM <br />DISSOLVED <br />UG /L <br />< 0.5 <br />< 0.3 <br />SECONDARY <br />IRON <br />DISSOLVED <br />UG /L <br />940 <br />700 <br />MANGANESE <br />DISSOLVED <br />UG /L <br />103 <br />74 <br />TRACE <br />MOLYBDENUM ITOTAL <br />RECOV <br />UG /L <br />< 50 <br />< 100 <br />NUTRIENTS <br />NITROGEN <br />1ORTHO-DISS <br />NO3 -NO2 <br />MG /L <br />< 0.1 <br />< 0.1 <br />AMMIA -FREE <br />MG /L <br />1.55 <br />1.50 <br />PHOSPHATE <br />MG /L <br />< 0.05 1 <br />0.01 <br />Note : <br />