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CATEGORY <br />PARAMETER <br />ANALYSIS TYPE <br />UNITS <br />OCT <br />NOV <br />DEC <br />JAN <br />FEB <br />MAR <br />APR <br />APR <br />MAY <br />JUN <br />JUL <br />AUG <br />AUG <br />AUG <br />AUG <br />SEP <br />SEP <br />Date <br />3/17/2011 <br />4/8/2011 <br />4/19/2011 <br />5/18/2011 <br />6/16/2011 <br />7/6/2011 <br />8/2/2011 <br />8/9/2011 <br />8/16/2011 <br />8/25/2011 <br />9/7/2011 <br />9/16/2011 <br />Water Level <br />FT <br />Frozen <br />0 55 <br />1 53 <br />1 73 <br />1 2 <br />0 66 <br />0 5 <br />0 4 <br />0 35 <br />0 25 <br />0 22 <br />0 25 <br />Flow <br />CFS <br />unknown <br />4 71 <br />23 36 <br />28 31 <br />15 97 <br />6 26 <br />4 05 <br />286 <br />232 <br />1 37 <br />1 12 <br />1 37 <br />PHYSICAL <br />CONDUCTIVITY <br />LAB /FIELD <br />UMS /CM <br />2970 <br />2200 <br />2290 <br />2710 <br />3500 <br />3140 <br />3500 <br />3470 <br />3470 <br />3405 <br />3385 <br />3320 <br />TEMP <br />Field <br />C <br />2 <br />36 <br />51 <br />11 <br />155 <br />177 <br />188 <br />164 <br />171 <br />19 <br />168 <br />17 <br />PH <br />LAB /FIELD <br />S U <br />82 <br />783 <br />749 <br />79 <br />783 <br />81 <br />768 <br />779 <br />781 <br />779 <br />8 <br />82 <br />SOLIDS <br />TOT -DISS, LAB <br />MG/L <br />2870 <br />3100 <br />3290 <br />3200 <br />3390 <br />SUSPENDED <br />MG/L <br />< 20 <br />52 <br />14 <br />12 <br />< 5 <br />CATIONS <br />CALCIUM <br />DISSOLVED <br />MG/L <br />354 <br />430 <br />353 <br />410 <br />384 <br />MAGNESIUM <br />DISSOLVED <br />MG/L <br />NO MONITORING <br />REQUIRED <br />THROUGH <br />OCT <br />FEB <br />283 <br />430 <br />332 <br />390 <br />373 <br />SODIUM <br />DISSOLVED <br />MG /L <br />41 8 <br />42 <br />39 1 <br />47 <br />50 3 <br />SAR <br />NOT APPLICABLE <br />RATIO <br />0 40 <br />0 37 <br />036 <br />0 4 <br />044 <br />ANIONS <br />BICARBONATE <br />AS HCO3 <br />MG/L <br />526 <br />490 <br />407 <br />320 <br />357 <br />CARBONATE <br />AS CO3 <br />MG/L <br />< 20 <br />< 1 <br />< 20 <br />< 1 <br />< 2 <br />SULFATE <br />NOT APPLICABLE <br />MG/L <br />1720 <br />2000 <br />2050 <br />1100 <br />2260 <br />PRIMARY <br />CADMIUM <br />TOTAL RECOV <br />UG /L <br /><05 <br /><2 <br /><1 <br /><2 <br /><2 <br />SELENIUM <br />TOTAL RECOV <br />UG /L <br />02 <br /><10 <br />02 <br /><2 <br /><01 <br />SECONDARY <br />SILVER <br />TOTAL RECOV <br />UG /L <br /><05 <br /><04 <br /><05 <br /><04 <br /><01 <br />ZINC <br />TOTAL RECOV <br />UG /L <br />20 <br />< 5 <br />< 100 <br />< 5 <br />< 20 <br />IRON <br />TOTAL RECOV <br />UG /L <br />150 <br />240 <br />160 <br />97 <br />70 <br />MANGANESE <br />TOTAL RECOV <br />UG /L <br />763 <br />130 <br />70 <br />140 <br />250 <br />TRACE METALS <br />MOLYBDENUM <br />TOTAL RECOV <br />UG /L <br />10 <br />< 50 <br />< 100 <br /><50 <br />< 10 <br />NUTRIENTS <br />PHOSPHATE <br />ORTHO -DISS <br />MG/L <br />0 02 <br />2 6 <br />0 01 <br />< 1 <br />0 02 <br />NITROGEN <br />NO3 -NO2 <br />MG /L <br />013 <br />002 <br /><01 <br />005 <br /><002 <br />AMMIA -FREE <br />MG/L <br /><05 <br /><0001 <br /><05 <br /><0001 <br /><005 <br />TABLE : 33 <br />TWENTYMILE COAL, LLC <br />2011 ANNUAL HYDROLOGY REPORT <br />WATER QUALITY MONITORING DATA <br />Site 800 (800 USGS 09243800, Surface Samples) DATUM = 6940 <br />Note • <br />