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Table: 5 <br />Twentymile Coal, LLC <br />2017 Annual Hydrology Report <br />Water Year Monitoring Data <br />Site: 087758 (008-77-58 Bedrock Well, Wadge Overburden) Datum: 6719.8 <br />2/27/2018 I:\Environmental\CDMG - CDRMS\AHR\2017\AHR ALL FINAL Tables087758 (2) <br />Date <br />Depth to Water (FT) <br />10/1/2016 <br />9.17 <br />4/6/2017 <br />9.44 <br />9/11/2017 <br />9.11 <br />Type <br />Parameter <br />Fraction Units <br />Result Detection <br />Result Detection <br />Result Detection <br />FIELD <br />pH, Field <br />N <br />S.U. <br />7.74 Y <br />7.51 <br />Y <br />7.49 Y <br />FIELD <br />Specific Conductivity,Field <br />N <br />UMHOS/CM <br />1700 Y <br />11610 <br />Y <br />1620 Y <br />FIELD <br />Temperature, Field <br />N <br />DEG -C <br />10.9 Y <br />11.5 <br />Y <br />11.3 Y <br />PHYSICAL <br />pH, Lab <br />N <br />S.U. <br />8.5 <br />Y <br />PHYSICAL <br />Specific Conductivity,Lab <br />N <br />UMHOS/CM <br />1480 <br />Y <br />PHYSICAL <br />Total Dissolved Solids Lab <br />N <br />MG/L <br />1030 <br />Y <br />CATION <br />Calcium <br />D <br />MG/L <br />55.9 <br />Y <br />CATION <br />Magnesium <br />D <br />MG/L <br />39.3 <br />Y <br />CATION <br />Sodium <br />D <br />MG/L <br />231 <br />Y <br />ANION <br />Alkalinity, Bicarbonate as CaCO3 <br />N <br />MG/L <br />508 <br />Y <br />ANION <br />Alkalinity,Carbonate as CaCO3 <br />N <br />MG/L <br />17.8 <br />Y <br />ANION <br />Sulfates <br />N <br />MG/L <br />380 <br />Y <br />PRIMARY <br />Cadmium <br />D <br />UG/L <br />0.5 <br />N <br />PRIMARY <br />Lead <br />D <br />UG/L <br />200 <br />N <br />PRIMARY <br />Mercury <br />D <br />UG/L <br />1 <br />N <br />PRIMARY <br />Selenium <br />D <br />UG/L <br />0.3 <br />N <br />SECONDARY <br />Iron <br />D <br />UG/L <br />190 <br />Y <br />SECONDARY <br />Manganese <br />D <br />UG/L <br />19 <br />Y <br />TRACE <br />Molybdenum <br />D <br />UG/L <br />100 <br />N <br />NUTRIENT <br />NO3-NO2 Nitrogen <br />N <br />MG/L <br />0.15 <br />Y <br />IN <br />NUTRIENT <br />Phosphorus, Orthophos horus <br />N <br />MG/L <br />0.05 <br />2/27/2018 I:\Environmental\CDMG - CDRMS\AHR\2017\AHR ALL FINAL Tables087758 (2) <br />