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Table 9. 2017 Water Quality Results - La Plata River Alluvium Well (LP-1) <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 /> Analyte 4/28/2017 I 6/22/2017 I, 10/25/2017 1 12/27/2017 MCL(1)or SMCLt2t <br /> Field Measurements <br /> Temperature(°C) 5.02 NA 6.4 3.4 <br /> Conductivity(NS/cm) 131 NA 158 177 <br /> Dissolved Oxygen(%) 4.77 NA NA NA <br /> pH(S.U.) 8.06 NA 7.29 7.54 6-8.5 <br /> ORP(my) -58 NA NA NA <br /> Static Water Level(feet) 8.1 NA 9.7 9.7 <br /> Lab Results <br /> Aluminum Dissolved by ICP ND ND ND ND 0.05 to 0.2(2) <br /> Antimony Dissolved by ICPMS 0.0013 ND ND 0.0005 0.006(1) <br /> Arsenic Dissolved by ICPMS ND ND ND ND 0.0111) <br /> Barium Dissolved by ICPMS 0.0314 0.0329 0.0432 0.0484 2(1) <br /> Beryllium Dissolved by ICPMS ND ND ND ND 0.004(1) <br /> Boron Dissolved by ICP ND ND ND ND <br /> Cadmium Dissolved by ICPMS ND ND ND ND 0.005(1) <br /> Chromium Dissolved by ICPMS 0.0027 0.0015 0.0059 0.0012 0.1)1) <br /> Cobalt Dissolved by ICPMS ND ND 0.0002 0.0004 <br /> Copper Dissolved by ICPMS 0.0006 0.0019 0.0022 0.001 1.311)13), 1.0(2) <br /> Cyanide,WAD ND ND ND ND 0.2(1) <br /> Fluoride by IC 0.159 0.215_ 0.240 0.240 4.011), 2.0)2) <br /> Iron Dissolved by ICP 0.164 0.229 0.127 0.058 0.30(2) <br /> Lead Dissolved by ICPMS ND ND ND ND 0.015)1)13) <br /> Manganese Dissolved by ICPMS 4.81 2.36 8.19 5.25 TVS(4)pg/L <br /> Mercury Dissolved by CVAA ND 0.0006 ND ND 0.002(1) <br /> Molybdenum Dissolved by ICPMS 0.0010 0.0006 0.0014 0.0017 <br /> Nickel Dissolved by ICPMS 0.0016 0.0021 0.0077 0.0106 0.1(1) <br /> Nitrate as N by IC 0.036 0.045 0.065 0.096 10)1) <br /> Nitrate/Nitrite as N by IC Package ND 0.0446, 0.0645 0.0955 10)1) <br /> Nitrite as N by IC ND ND ND ND 1)1) <br /> pH(S.U.) 7.70 7.45 7.33 8.54 6-8.5 <br /> Selenium Dissolved by ICPMS ND ND ND ND 0.05)1) <br /> Silver Dissolved by ICPMS ND ND ND ND 0.10)2) <br /> Sodium Dissolved by ICP 1.71 ND 1.40 1.39 <br /> Solids,Total Dissolved(TDS) 80.0 65.0 110 115 <br /> Sulfate by IC 11.2 10.3 25.9 29.1 250)2) <br /> Thallium Dissolved by ICPMS ND ND ND ND 0.00V1 <br /> Uranium Dissolved by ICPMS ND ND ND 0.2 30 pg/L(1) <br /> Vanadium ND ND ND ND <br /> Zinc Dissolved by ICPMS ND ND ND ND TVS(4)pg/L <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 /> ug/L=microgram per Liter <br /> NA=not applicable <br /> ND=not detected <br /> TVS=table value standards <br /> SGM P\Project Files\2017-460.001 Sunrise Mining-May Day Mine\M-Water Quality\ <br /> 01/15/2018 Tbls.1-10-May Day Idaho Mine Complex WO-Results-2017.xlsxLP-1 <br />