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TABLE : 23 <br />TWENTYMILE COAL COMPANY <br />2013 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />Site: 06AY1 (006 -AY -1, Alluvial Well) DATUM = 6827.99 <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 />6.05 <br />5.65 <br />6.56 <br />8.31 <br />Water elevation <br />Field <br />Ft <br />6821.94 <br />6822.34 <br />6821.43 <br />6819.68 <br />PHYSICAL <br />CONDUCTIVIT <br />LAB /Field <br />UMS /CM <br />490 <br />610 <br />661 <br />970 <br />PH <br />LAB /Field <br />S.U. <br />8.3 <br />7.57 <br />8.2 <br />7.25 <br />TEMPERATUR <br />Field <br />De rees C <br />9.4 <br />7.1 <br />1 6.7 <br />12 <br />SOLIDS <br />TOT -DISS, LAB <br />MG /L <br />290 <br />430 <br />CATIONS <br />CALCIUM <br />DISSOLVED <br />MG /L <br />49.2 <br />71.6 <br />MAGNESIUM <br />DISSOLVED <br />MG /L <br />26.0 <br />37.6 <br />SODIUM <br />DISSOLVED <br />MG /L <br />18.0 <br />18.3 <br />ANIONS <br />BICARBONATE <br />AS HCO3 <br />MG /L <br />1 <br />225 <br />1 <br />1 <br />1 <br />288 <br />CARBONATE <br />AS CO3 <br />MG /L <br />< 20 <br />< 20 <br />SULFATE <br />NOT <br />MG /L <br />70 <br />120 <br />PRIMARY <br />CADMIUM <br />DISSOLVED <br />UG /L <br />< 0.5 <br />< 0.5 <br />LEAD <br />DISSOLVED <br />UG /L <br />< 200 <br />< 200 <br />MERCURY <br />DISSOLVED <br />UG /L <br /><1 <br /><1 <br />SELENIUM <br />DISSOLVED <br />UG /L <br />1.5 <br />9.7 <br />SECONDARY <br />IRON <br />DISSOLVED <br />UG /L <br />20 <br />40 <br />MANGANESE <br />DISSOLVED <br />UG /L <br />< 30 <br />< 30 <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 />0.03 <br />AMMIA -FREE <br />MG /L <br />< 0.5 <br />< 0.5 <br />PHOSPHATE <br />MG /L 1 <br />1 0.07 <br />0.03 <br />Note : <br />