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Table: 8 <br />Williams Fork Mine <br />2017 Annual Hydrology Report <br />Water Year Monitoring Data <br />Site: 01, Well 81-01, Middle Sandstone Datum: 6413.0 <br />3/5/2018 I:\Environmental\CDMG - CDRMS\AHR\2017\EMPIRE\AHR 2017 ALL FINAL81-01 (2) <br />Date <br />Depth to Water (FT) <br />2/7/2017 <br />258.71 <br />4/11/2017 <br />258.02 <br />8/20/2017 <br />257.84 <br />11/19/2017 <br />259.02 <br />Type <br />Parameter <br />Fraction <br />Units <br />Result Detection Result Detection Result Detection <br />Result Detection <br />FIELD <br />pH, Field <br />N <br />S.U. <br />7.64 Y <br />7.27 <br />Y <br />7.24 Y <br />7.58 IY <br />FIELD <br />Specific Conductivity, Field <br />N <br />UMHOS/CM <br />1350 Y <br />1270 <br />Y <br />1260 Y <br />1330 Y <br />FIELD <br />PHYSICAL <br />Temperature, Field <br />Alkalinity as CaCO3, @ pH 4.5 <br />N <br />N <br />DEG -C <br />MG/L <br />9.5 Y <br />10.5 <br />283 <br />Y <br />Y <br />10.5 Y <br />9.3 Y <br />PHYSICAL <br />Hardness <br />N <br />MG/L <br />588 <br />IY <br />PHYSICAL <br />Hydroxide as OH <br />N <br />MG/L <br />20 <br />N <br />PHYSICAL <br />pH, Lab <br />N <br />S.U. <br />8.3 <br />Y <br />PHYSICAL <br />Specific Conductivity, Lab <br />N <br />UMHOS/CM <br />1180 <br />Y <br />ANION <br />Alkalinity,Bicarbonate as CaCO3 <br />N <br />MG/L <br />1 <br />339 <br />Y <br />ANION <br />Chloride <br />N <br />MG/L <br />42.2 <br />Y <br />ANION <br />Sulfates <br />N <br />MG/L <br />332 <br />Y <br />CATION <br />Calcium <br />D <br />MG/L <br />69 <br />Y <br />CATION <br />Magnesium <br />D <br />MG/L <br />101 <br />Y <br />CATION <br />Sodium <br />D <br />MG/L <br />34.9 <br />Y <br />NUTRIENT <br />Nitrate Nitrogen <br />N <br />MG/L <br />0.05 <br />N <br />NUTRIENT <br />NO3-NO2 Nitrogen <br />N <br />MG/L <br />0.1 <br />N <br />PRIMARY <br />Arsenic <br />D <br />UG/L <br />1 <br />N <br />PRIMARY <br />Cadmium <br />D <br />UG/L <br />0.5 <br />N <br />PRIMARY <br />Lead <br />D <br />UG/L <br />0.2 <br />Y <br />PRIMARY <br />Mercury <br />D <br />UG/L <br />1 <br />IN <br />PRIMARY <br />Selenium <br />D <br />UG/L <br />0.3 <br />N <br />SECONDARY <br />Iron <br />D <br />UG/L <br />4500 <br />Y <br />SECONDARY <br />Manganese <br />D <br />UG/L <br />156 <br />Y <br />SECONDARY <br />Zinc <br />D <br />UG/L <br />50 <br />N <br />TRACE <br />Boron <br />D <br />UG/L <br />40 <br />Y <br />TRACE <br />Molybdenum <br />D <br />UG/L <br />1100 <br />IN <br />3/5/2018 I:\Environmental\CDMG - CDRMS\AHR\2017\EMPIRE\AHR 2017 ALL FINAL81-01 (2) <br />