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TABLE: 21 <br />TWENTYMILE COAL COMPANY <br />2013 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />Site: 08AV2 (008 -AV -2, Alluvial Well) DATUM = 6677.1 <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 />3/7/2013 <br />5/3/2013 <br />8/20/13 <br />Water Level <br />Field <br />Ft <br />10.51 <br />7.16 <br />7.28 <br />9.56 <br />Water elevation <br />Field <br />Ft <br />6666.59 <br />6669.9 <br />6669.82 <br />6667.54 <br />PHYSICAL <br />CONDUCTIVIT <br />LAB /Field <br />UMS /CM <br />1520 <br />1500 <br />1510 <br />1640 <br />PH <br />LAB /Field <br />S.U. <br />8.1 <br />1 <br />7.47 <br />8.2 <br />1 <br />1 7.19 <br />TEMPERATUR <br />Field <br />Degrees C <br />10.1 <br />7.4 <br />7.2 <br />11.3 <br />SOLIDS <br />TOT -DISS, LAB <br />MG /L <br />1190 <br />1160 <br />CATIONS <br />CALCIUM <br />DISSOLVED <br />MG /L <br />184 <br />165 <br />MAGNESIUM <br />DISSOLVED <br />MG /L <br />75.0 <br />70.4 <br />SODIUM <br />DISSOLVED <br />MG /L <br />99.5 <br />95.1 <br />ANIONS <br />BICARBONATE <br />AS HCO3 <br />MG /L <br />422 <br />1 <br />399 <br />CARBONATE <br />AS CO3 <br />MG /L <br />< 20 <br />< 20 <br />SULFATE <br />NOT <br />MG /L <br />550 <br />490 <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 />0.1 <br />1.0 <br />SECONDARY <br />IRON <br />DISSOLVED <br />UG /L <br />310 <br />250 <br />MANGANESE <br />DISSOLVED <br />UG /L <br />1390 <br />680 <br />TRACE <br />MOLYBDENUM <br />TOTAL RECOV <br />UG /L <br />< 50 <br />< 100 <br />NUTRIENTS <br />NITROGEN <br />NO3 -NO2 <br />MG /L <br />0.06 <br />0.03 <br />AMMIA -FREE <br />MG /L <br />0.35 <br />0.13 <br />PHOSPHATE <br />ORTHO -DISS <br />MG /L 1 <br />1 <br />0.02 <br />< 0.05 <br />Note : <br />