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TABLE 17 <br />WILLIAMS FORK MINE <br />2015 ANNUAL HYDROLOGY REPORT <br />PERIOD OF RECORD WATER QUALITY DATA <br />Site: 1SP (OUTFALL 022, No. 1 Strip Pit Discharge) <br />Location <br />1SP <br />Chemical Name <br />Fraction <br />Unit <br />Average <br />Maximum <br />Minimum <br />ACIDITY <br />N <br />MG/L <br />-87 <br />1 <br />-437 <br />ARSENIC <br />POT-DISS <br />UG/L <br />0.582 <br />1.1 <br />0.3 <br />ARSENIC <br />TOTAL <br />UG/L <br />0.968 <br />2 <br />0.5 <br />BICARBONATE <br />N <br />MG/L <br />660.61 <br />744.2 <br />220 <br />CADMIUM <br />POT-DISS <br />UG/L <br />0.44 <br />0.5 <br />0.1 <br />CADMIUM <br />TOTAL-RECOV <br />UG/L <br />3.6 <br />7 <br />0.1 <br />CALCIUM <br />D <br />MG/L <br />142 <br />179 <br />113 <br />CARBONATE <br />N <br />MG/L <br />139.6 <br />242 <br />37.2 <br />CHLORIDE <br />N <br />MG/L <br />40 <br />94 <br />15 <br />CHROMIUM <br />DISSOLVED <br />UG/L <br />50 <br />50 <br />50 <br />CHROMIUM <br />TOTAL-RECOV <br />UG/L <br />50 <br />50 <br />50 <br />CHROMIUM -3 <br />DISSOLVED <br />UG/L <br />50 <br />50 <br />50 <br />CHROMIUM -6 <br />DISSOLVED <br />UG/L <br />20 <br />20 <br />20 <br />CONDUCTIVITY <br />SPC FIELD <br />UMHOS/CM <br />1594.6 <br />3000 <br />585 <br />CONDUCTIVITY <br />SCP LAB <br />UMS/CM <br />1998 <br />2680 <br />7.8 <br />COPPER <br />POT-DISS <br />UG/L <br />50 <br />50 <br />50 <br />FLOW <br />N <br />CFS <br />0.069 <br />0.67 <br />0.01 <br />HARDNESS <br />N <br />MG/L <br />972 <br />1310 <br />666 <br />IRON <br />DISSOLVED <br />UG/L <br />170 <br />600 <br />10 <br />IRON <br />TOTAL <br />UG/L <br />303 <br />3130 <br />20 <br />IRON <br />TOTAL-RECOV <br />UG/L <br />394 <br />2350 <br />0.16 <br />LEAD <br />POT-DISS <br />UG/L <br />0.48 <br />0.5 <br />0.1 <br />MAGNESIUM <br />D <br />MG/L <br />123.5 <br />161 <br />93.4 <br />MANGANESE <br />DISSOLVED <br />UG/L <br />15 <br />29 <br />5 <br />MANGANESE <br />POT-DISS <br />UG/L <br />640 <br />1450 <br />51 <br />MANGANESE <br />TOTAL-RECOV <br />UG/L <br />85 <br />220 <br />20 <br />MERCURY <br />POT-DISS <br />UG/L <br />1 <br />1 <br />1 <br />MERCURY <br />TOTAL <br />UG/L <br />0.5 <br />1 <br />0.1 <br />MERCURY <br />TOTAL-RECOV <br />UG/L <br />94.9 <br />1320 <br />0.5 <br />MOLYBDENUM <br />TOTAL-RECOV <br />UG/L <br />200 <br />200 <br />100 <br />NICKEL <br />POT-DISS <br />UG/L <br />39 <br />50 <br />10 <br />NITROGEN <br />NITRATE <br />MG/L <br />0.12 <br />0.12 <br />0.12 <br />NITROGEN <br />NO3 NO2 <br />MG/L <br />0.26 <br />0.53 <br />0.12 <br />PH <br />FIELD <br />S.U. <br />8.05 <br />9.06 <br />7.2 <br />PH <br />LAB <br />S.U. <br />8.1 <br />8.5 <br />7.08 <br />SAR <br />N <br />RATIO <br />4.7851 <br />5.304 <br />4.118 <br />SELENIUM <br />POT-DISS <br />UG/L <br />0.488 <br />2.1 <br />0.1 <br />SELENIUM <br />TOTAL-RECOV <br />UG/L <br />2 <br />4 <br />1 <br />SILVER <br />POT-DISS <br />UG/L <br />30 <br />30 <br />30 <br />SILVER <br />TOTAL-RECOV <br />UG/L <br />0.2 <br />0.3 <br />0.1 <br />SOLIDS <br />SS <br />ML/L <br />0.2 <br />0.2 <br />0.2 <br />SOLIDS <br />TDS LAB <br />MG/L <br />1251 <br />5160 <br />820 <br />SOLIDS <br />TSS <br />MG/L <br />10 <br />76 <br />1 <br />SULFATE <br />N <br />MG/L <br />329 <br />740 <br />136 <br />SULFIDE <br />N <br />MG/L <br />0.096 <br />0.21 <br />0.01 <br />TEMPERATURE <br />FIELD <br />DEG -C <br />9.124 <br />30 <br />0 <br />ZINC <br />POT-DISS <br />UG/L <br />50 <br />50 <br />10 <br />ZINC <br />TOTAL-RECOV <br />UG/L <br />27.6 <br />440 <br />0.005 <br />