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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 /> Date Safe Drinking Water Act <br /> Anaryte W9/2018 4f2712018 1 8/6/2018 1 12/5/2018 MCLI t or SMCLi?t <br /> Field Measurements <br /> Temperature °C 5.0 3.6 12.3 4.8 <br /> Conductivity S/cm 1821 131 165 181 <br /> H S.U. 7.531 7.34 7.46 7.49 6-8.5 <br /> Flow cfs' 1 4.161 40 4.38 11.3 <br /> Lab Results <br /> Alkalinity,Bicarbonate 68.0 34.0 58.0 54.0 <br /> Alkalinity,Carbonate ND ND ND ND <br /> Alkalinity,Hydroxide ND ND ND ND <br /> Alkalinity,Total 68.0 34.0 58.0 54.0 <br /> Aluminum Dissolved by ICP ND ND ND ND 0.05 to 0.2(2) <br /> Ammonia ND ND ND ND TVS(4) <br /> Antimony Dissolved by ICPMS ND ND ND NDI 0.006111 <br /> Arsenic 200.8 by ICPMS ND ND ND ND 0.01111 <br /> Arsenic Dissolved by ICPMS ND ND ND ND 0.01111 <br /> Barium Dissolved by ICPMS 0.0715 0.0404 0.0624 0.0591 2(1) <br /> Beryllium Dissolved by ICPMS ND ND ND ND 0.004(1) <br /> Boron 200.7 by ICP ND ND ND ND <br /> Cadmium Dissolved by ICPMS ND ND 0.0001 ND 0.005") <br /> Calcium Dissolved by ICP 30.8 20.3 28.1 29.1 <br /> Chloride by IC ND ND ND ND 250121 <br /> Chromium 200.8 by ICPMS ND ND ND 0.0017 0.10) <br /> Copper Dissolved by ICPMS 0.0018 0.0040 0.0019 0.0018 1.311)(3),1.0121 <br /> Cyanide,WAD ND ND ND ND 0.2(1) <br /> Fluoride by IC 0.224 0.225 0.218 0.221 4.0111 2.0(2) <br /> Hardness,dis 93.4 61.2 84.4 87.7 <br /> Iron 200.7 by ICP 0.239 0.137 0.456 ND 0.30(2) <br /> Iron Dissolved by ICP ND ND ND NDI 0.30(2) <br /> Lead 200.8 by ICPMS 0.0011 0.0007 ND ND 0.015(1)(3) <br /> Lead Dissolved by ICPMS ND ND ND ND 0.015(1)(3) <br /> Magnesium Dissolved by ICP 4.02 2.561 3.44 3.68 0.05j21 <br /> Manganese Dissolved by ICPMS 0.7 1.3 ND ND TVS I41 /L <br /> Mercury Dissolved by CVAA ND ND ND ND 0.002") <br /> Molybdenum Dissolved by ICPMS 0.0011 0.0009 0.0012 0.0012 <br /> Nickel Dissolved by ICPMS 0.0025 0.0017 0.0013 0.0014 0.10) <br /> Nitrate as N by IC 0.100 0.145 0.074 0.111 100) <br /> Nitrate/Nitrite as N by IC Package 0.0996 0.145 0.0742 0.111 100) <br /> Nitrite as N by IC ND ND ND ND 1(1) <br /> H S.U. 7.781 7.95 7.81 8.00 6-8.5 <br /> Selenium Dissolved by ICPMS ND ND 0.0010 ND 0.05(11 <br /> Silver Dissolved by ICPMS ND ND ND ND 0.1012) <br /> Solids Total Dissolved TDS 85.0 95.0 115 130 <br /> Solids,Total Sus ended(TSS) NA 2.83 3.83 ND <br /> Sulfate by IC 31.0 19.2 28.7 34.9 250(2) <br /> Thallium Dissolved b ICPMS ND ND 0.0004 ND 0.002 <br /> Uranium Dissolved by ICPMS 1 0.31 0.21 0.3 0.3 30 /L(1) <br /> Zinc Dissolved by ICPMS 1 0.00241 0.0034 0.0036 0.0023 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 /> µg/L=microgram per Liter <br /> NA=not applicable <br /> ND=not detected <br /> TVS=table value standards <br /> SGM <br /> 12262018 P\Project Files\2017d60.001 SunriseMining-MayDayMine\M-Water 0uality\2018\04\ <br /> Tbls.1-10-04-May Day Idaho Mine Complex WC-Results-2018.xIsxSW-2 <br />