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Table: 23 <br />Twentymile Coal, LLC <br />2017 Annual Hydrology Report <br />Water Year Monitoring Data <br />Site: 06AY1 (006 -AY -1, Alluvial Well, Fish Creek Alluvium) Datum: 6827.99 <br />2/27/2018 I:\Environmental\CDMG - CDRMS\AHR\2017\AHR ALL FINAL Tables06AY1 (2) <br />Date <br />Depth to Water (FT) <br />4/13/2017 <br />7.78 <br />9/10/2017 <br />7.64 <br />Type <br />Parameter <br />Fraction <br />Units <br />Detection <br />Result <br />Detection <br />Result <br />FIELD <br />H Field <br />N <br />S.U. <br />Y <br />7.62 <br />Y <br />7.47 <br />FIELD <br />Specific Conductivity, Field <br />N <br />UMHOS/CM <br />Y <br />1430 <br />Y <br />1490 <br />FIELD <br />Temperature, Field <br />N <br />DEG -C <br />Y <br />8.6 <br />Y <br />13.2 <br />PHYSICAL <br />pH, Lab <br />N <br />S.U. <br />Y <br />8.3 <br />Y <br />8 <br />PHYSICAL <br />Specific Conductivity,Lab <br />N <br />UMHOS/CM <br />Y <br />1280 <br />Y <br />1370 <br />PHYSICAL <br />Total Dissolved Solids Lab <br />N <br />MG/L <br />Y <br />978 <br />Y <br />984 <br />CATION <br />Calcium <br />D <br />MG/L <br />Y <br />145 <br />Y <br />160 <br />CATION <br />Magnesium <br />D <br />MG/L <br />Y <br />73.4 <br />Y <br />83.2 <br />CATION <br />Sodium <br />D <br />MG/L <br />Y <br />37.2 <br />Y <br />42.9 <br />ANION <br />Alkalinity,Bicarbonate as CaCO3 <br />N <br />MG/L <br />Y <br />433 <br />Y <br />604 <br />ANION <br />Alkalinity, Carbonate as CaCO3 <br />N <br />MG/L <br />Y <br />5.7 <br />N <br />20 <br />ANION <br />Sulfates <br />N <br />MG/L <br />Y <br />420 <br />Y <br />340 <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 />Y <br />10.4 <br />Y <br />8.8 <br />SECONDARY <br />Iron <br />D <br />UG/L <br />Y <br />60 <br />Y <br />90 <br />SECONDARY <br />Manganese <br />D <br />UG/L <br />Y <br />14 <br />Y <br />9 <br />TRACE <br />Molybdenum <br />D <br />UG/L <br />N <br />100 <br />N <br />100 <br />NUTRIENT <br />Ammonia Nitrogen <br />N <br />MG/L <br />N <br />0.2 <br />N <br />0.2 <br />NUTRIENT <br />NO3-NO2 Nitrogen <br />N <br />MG/L <br />Y <br />0.02 <br />Y <br />0.03 <br />NUTRIENT <br />Phosphorus, Ortho hos horus <br />N <br />MG/L <br />N <br />0.05 <br />Y <br />0.03 <br />2/27/2018 I:\Environmental\CDMG - CDRMS\AHR\2017\AHR ALL FINAL Tables06AY1 (2) <br />