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Table: 19 <br />Twentymile Coal, LLC <br />2017 Annual Hydrology Report <br />Water Year Monitoring Data <br />Site: 09S10 (009-5-10, Alluvial Well, Foidel Creek Alluvium) Datum: 6906.67 <br />2/27/2018 I:\Environmental\CDMG - CDRMS\AHR\2017\AHR ALL FINAL Tables09S10 (2) <br />Date <br />Depth to Water (FT) <br />4/12/2017 <br />4.91 <br />9/10/2017 <br />5.83 <br />Type <br />Parameter <br />Fraction <br />Units <br />Detection Result Detection Result <br />FIELD <br />pH, Field <br />N <br />S.U. <br />Y <br />7.33 <br />Y <br />8.09 <br />FIELD <br />Specific Conductivity, Field <br />N <br />UMHOS/CM <br />Y <br />1300 <br />Y <br />1260 <br />FIELD <br />Temperature, Field <br />N <br />DEG- C <br />Y <br />7.8 <br />Y <br />11.4 <br />PHYSICAL <br />pH, Lab <br />N <br />S.U. <br />Y <br />8.4 <br />Y <br />8.4 <br />PHYSICAL <br />Specific Conductivity,Lab <br />N <br />UMHOS/CM <br />Y <br />1210 <br />Y <br />1220 <br />PHYSICAL <br />Total Dissolved Solids, Lab <br />N <br />MG/L <br />Y <br />796 <br />Y <br />772 <br />CATION <br />Calcium <br />D <br />MG/L <br />Y <br />43.1 <br />Y <br />43.9 <br />CATION <br />Magnesium <br />D <br />MG/L <br />Y <br />20.6 <br />Y <br />22 <br />CATION <br />Sodium <br />D <br />MG/L <br />Y <br />195 <br />Y <br />199 <br />ANION <br />Alkalinity, Bicarbonate as CaCO3 <br />N <br />MG/L <br />Y <br />504 <br />Y <br />1556 <br />ANION <br />Alkalinity, Carbonate as CaCO3 <br />N <br />MG/L <br />Y <br />11.6 <br />Y <br />7.8 <br />ANION <br />Sulfates <br />N <br />MG/L <br />Y <br />550 <br />Y <br />220 <br />PRIMARY <br />Cadmium <br />D <br />UG/L <br />N <br />0.5 <br />N <br />0.5 <br />PRIMARY <br />Lead <br />D <br />UG/L <br />N <br />200 <br />N <br />200 <br />PRIMARY <br />Mercury <br />D <br />UG/L <br />N <br />1 <br />N <br />1 <br />PRIMARY <br />Selenium <br />D <br />UG/L <br />N <br />0.3 <br />N <br />0.3 <br />SECONDARY <br />Iron <br />D <br />UG/L <br />Y <br />130 <br />Y <br />120 <br />SECONDARY <br />Manganese <br />D <br />UG/L <br />Y <br />23 <br />Y <br />308 <br />TRACE <br />Molybdenum <br />D <br />UG/L <br />N <br />100 <br />N <br />100 <br />NUTRIENT <br />Ammonia Nitrogen <br />IN <br />MG/L <br />Y <br />1.03 <br />Y <br />0.91 <br />NUTRIENT <br />NO3-NO2 Nitrogen <br />IN <br />MG/L <br />Y <br />0.3 <br />Y <br />0.03 <br />NUTRIENT <br />Phosphorus, Ortho hos horus <br />IN <br />MG/L <br />Y <br />0.04 <br />IY <br />0.52 <br />2/27/2018 I:\Environmental\CDMG - CDRMS\AHR\2017\AHR ALL FINAL Tables09S10 (2) <br />