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Table: 33 <br />Twentymile Coal, LLC <br />2017 Annual Hydrology Report <br />Water Year Monitoring Data <br />Site: 800 (USGS 09243800, Surface Water, Foidel Creek) Datum: 6940 <br />2/27/2018 I:\Environmental\CDMG - CDRMS\AHR\2017\AHR ALL FINAL Tables800 (2) <br />Date <br />3/30/2017 <br />4/7/2017 <br />5/22/2017 <br />6/15/2017 <br />6/21/2 <br />Type <br />Parameter <br />Fraction <br />Units <br />Detection Result Detection Result Detection Result Detection Result Detection <br />FIELD <br />Flow <br />N <br />CFS <br />Y <br />1.821 <br />Y <br />2.318 <br />Y <br />0.965 <br />Y <br />0.615 <br />FIELD <br />pH, Field <br />N <br />S.U. <br />Y <br />8.3 <br />Y <br />8.3 <br />Y <br />8.42 <br />Y <br />8.45 <br />FIELD <br />Specific Conductivity,Field <br />N <br />UMHOS/CM Y <br />12590 <br />Y <br />2591 <br />IY <br />3170 <br />Y <br />13150 <br />FIELD <br />Temperature, Field <br />N <br />DEG -C <br />Y <br />4.5 <br />Y <br />4.5 <br />Y <br />19.5 <br />Y <br />24.8 <br />PHYSICAL <br />pH, Lab <br />N <br />S.U. <br />Y <br />8.5 <br />Y <br />PHYSICAL <br />Sodium Adsorption Ratio <br />N <br />RATIO <br />Y <br />0.48 <br />Y <br />PHYSICAL <br />Solids Total Suspended <br />N <br />MG/L <br />Y <br />37 <br />Y <br />PHYSICAL <br />Specific Conductivity,Lab <br />N <br />UMHOS/CM Y <br />2480 <br />Y <br />PHYSICAL <br />Total Dissolved Solids Lab <br />N <br />MG/L <br />Y <br />2490 <br />Y <br />CATION <br />Calcium <br />D <br />MG/L <br />Y <br />313 <br />Y <br />CATION <br />Magnesium <br />D <br />MG/L <br />Y <br />257 <br />Y <br />CATION <br />Sodium <br />D <br />MG/L <br />Y <br />47.2 <br />IY <br />ANION <br />Alkalinity,Bicarbonate as CaCO <br />N <br />MG/L <br />Y <br />400 <br />Y <br />ANION <br />Alkalinity,Carbonate as CaCO3 <br />N <br />MG/L <br />Y <br />22 <br />Y <br />ANION <br />Sulfates <br />N <br />MG/L <br />Y <br />1480 <br />Y <br />PRIMARY <br />Selenium <br />TR <br />UG/L <br />Y <br />0.4 <br />Y <br />SECONDAR <br />Iron <br />TR <br />UG/L <br />Y <br />1400 <br />Y <br />SECONDAR <br />Manganese <br />TR <br />UG/L <br />Y <br />220 <br />Y <br />SECONDAR <br />Silver <br />TR <br />UG/L <br />N <br />0.5 <br />N <br />SECONDARN <br />Zinc <br />TR <br />UG/L <br />N <br />100 <br />N <br />TRACE <br />Molybdenum <br />TR <br />UG/L <br />N <br />200 <br />IN <br />NUTRIENT <br />Ammonia Nitrogen <br />N <br />MG/L <br />N <br />0.2 <br />N <br />NUTRIENT <br />NO3-NO2 Nitrogen <br />IN <br />MG/L <br />Y <br />0.04 <br />N <br />NUTRIENT <br />Phosphorus, Ortho hos horus <br />IN <br />MG/L <br />Y <br />0.02 <br />N <br />2/27/2018 I:\Environmental\CDMG - CDRMS\AHR\2017\AHR ALL FINAL Tables800 (2) <br />