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Table 2. 2018 Water Quality Results -La Plata River-Lower Sampling Point(SW-2) <br /> May Day Idaho Mine Complex <br /> Sunrise Mining,LLC <br /> All values in mg/L unless otherwise noted <br /> Bate Safe Drinking Water Act <br /> Analyte 2/9/2018 4/27/2018 1 816/2018 MCI.(')or.SMCLI�1 <br /> Field Measurements <br /> Temperature °C 5.01 3.61 12.3 <br /> Conductivity S/cm) 182 1311 165 <br /> H S.U. 7.531 7.341 7.46 6-8.5 <br /> Flow cfs' 4.161 401 4.38 <br /> Lab Results <br /> Alkalinity,Bicarbonate 68.0 34.0 58.0 <br /> Alkalinity,Carbonate ND ND ND <br /> Alkalinity,Hydroxide ND ND ND <br /> Alkalinity,Total 68.0 34.0 58.0 <br /> Aluminum Dissolved by ICP ND ND ND 0.05 to 0.2(2) <br /> Ammonia ND ND ND TVS(4) <br /> Antimony Dissolved by ICPMS ND ND ND 0.006") <br /> Arsenic 200.8 by ICPMS ND ND ND 0.01j'1 <br /> Arsenic Dissolved by ICPMS ND ND ND 0.011'1 <br /> Barium Dissolved by ICPMS 0.0715 0.0404 0.0624 2j'1 <br /> Beryllium Dissolved by ICPMS ND ND NDI 0.004") <br /> Boron 200.7 by ICP ND ND ND <br /> Cadmium Dissolved by ICPMS ND ND 0.0001 0.005(1) <br /> Calcium Dissolved by ICP 30.8 20.3 28.1 <br /> Chloride by IC ND ND ND 250(2) <br /> Chromium 200.8 by ICPMS ND ND ND 0.1\'1 <br /> Copper Dissolved by ICPMS 0.0018 0.0040 0.0019 1.3j'1j31, 1.0(2) <br /> Cyanide,WAD ND ND NO 0.21'1 <br /> Fluoride by IC 0.224 0.225 0.218 4.0j11, 2.0t21 <br /> Hardness,dis 93.4 61.2 84.4 <br /> Iron 200.7 by ICP 0.239 0.137 0.456 0.30j21 <br /> Iron Dissolved by ICP ND ND ND 0.301'1 <br /> Lead 200.8 by ICPMS 0.0011 0.0007 ND 0.015t'1t31 <br /> Lead Dissolved by ICPMS ND ND ND 0.0151'1/31 <br /> Magnesium Dissolved by ICP 4.02 2.56 3.44 0.05(21 <br /> Manclanese Dissolved by ICPMS 0.7 1.3 ND TVS(4) /L <br /> Mercury Dissolved by CVAA ND ND ND 0.002111 <br /> Molybdenum Dissolved by ICPMS 0.0011 0.0009 0.0012 <br /> Nickel Dissolved by ICPMS 0.0025 0.0017 0.0013 0.101 <br /> Nitrate as N by IC 0.100 0.145 0.074 1001 <br /> Nitrate/Nitrite as N by IC Package 0.0996 0.145 0.0742 10111 <br /> Nitrite as N by IC ND ND ND 1111 <br /> H S.U. 7.78 7.95 7.81 6-8.5 <br /> Selenium Dissolved by ICPMS ND ND 0.0010 0.05111 <br /> Silver Dissolved by ICPMS ND ND ND 0.10j21 <br /> Solids,Total Dissolved TDS 85.0 95.0 115 <br /> Solids Total Suspended(TSS) NA 2.83 3.83 <br /> Sulfate by IC 31.0 19.2 28.7 250(2) <br /> Thallium Dissolved by ICPMS NDI ND 0.0004 0.002 <br /> Uranium Dissolved by ICPMS 1 0.3 0.2 0.3 30 /Lj'1 <br /> Zinc Dissolved b ICPMS 0.0024 0.0034 0.0036 TVS(4) <br /> Notes: <br /> mg/L=milligrams per Liter <br /> °C=degrees Celsius <br /> pS/cm=microsiemens per centimeter <br /> S.U.=standard units <br /> mV=millivolts <br /> cfs=cubic feet per second <br /> Ng/L=microgram per Liter <br /> NA=not applicable <br /> ND=not detected <br /> SGM <br /> 08/20/2018 P:\Project Files\2017-460.001 Sunrise Mining-May Day Mine\M-Water Quality\2018\Q3\ <br /> Tbls.1-10-W-May Day Idaho Mine Complex WQ-Results-201B.xIsxSW-2 <br />