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Table 8. 2017 Water Quality Results - May Day No. 2 Well (MD-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 /> Analyte 4/28/2017 I 6/22/2017 ( 10/25/2017 1 12/27/2017 MCLt11 or SMCLt21 <br /> Field Measurements <br /> Temperature(°C) 8.6 NA 9.0 8.9 <br /> Conductivity(pS/cm) 665 NA 601 606 <br /> Dissolved Oxygen(%) 8.2 NA NA NA <br /> pH(S.U.) 7.43 NA 7.42 7.37 6-8.5 <br /> ORP(mV) -141 NA NA NA <br /> Static Water Level(feet) 52.13 NA 55.1 46 <br /> Lab Results <br /> Aluminum Dissolved by ICP ND ND ND ND 0.05 to 0.2(2) <br /> Antimony Dissolved by ICPMS 0.0005 ND ND 0.0006 0.006(1) <br /> Arsenic Dissolved by ICPMS ND ND ND ND, 0.01(1) <br /> Barium Dissolved by ICPMS 0.0510 0.0495 0.476 0.0498_ 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 0.0001 0.0002 0.0002 0.005(1) <br /> Chromium Dissolved by ICPMS 0.0175 0.0098 0.0297 0.0026 0.1(1) <br /> Cobalt Dissolved by ICPMS ND ND 0.0001 0.0001 <br /> Copper Dissolved by ICPMS 0.0004 0.0013 0.0011 0.0006 1.3(1))3), 1.0(2) <br /> Cyanide,WAD ND ND ND ND 0.2(1) <br /> Fluoride by IC 0.787 0.849 0.826 0.828 4.0)1), 2.0(2) <br /> Iron Dissolved by ICP ND ND ND ND 0.30(2) <br /> Lead Dissolved by ICPMS ND ND ND ND 0.015(1)(3) <br /> Manganese Dissolved by ICPMS 0.0545 0.0467 0.0493 0.0545, TVS(4) <br /> Mercury Dissolved by CVAA ND ND ND ND 0.002(1) <br /> Molybdenum Dissolved by ICPMS ND ND ND ND, <br /> Nickel Dissolved by ICPMS 0.0021 0.0019, 0.0028 0.0038, 0.1(1) <br /> Nitrate as N by IC ND ND ND ND 10(1) <br /> Nitrate/Nitrite as N by IC Package ND ND ND ND 10(1) <br /> Nitrite as N by IC ND ND ND ND 1(1) <br /> pH(S.U.) 7.52 7.55 7.52 7.57 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 37.8 36.3 37.0 37.7 <br /> Solids,Total Dissolved(TDS) 395 380 395 385 <br /> Sulfate by IC 49.0 49.7 47.2 48.9 250(2) <br /> Thallium Dissolved by ICPMS ND ND ND ND 0.002((J <br /> Uranium Dissolved by ICPMS 1.5 1.4 1.6 1.5_ 30 pg/L(1) <br /> Vanadium ND ND 0.0081 ND <br /> Zinc Dissolved by ICPMS ND ND ND ND 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 /> pg/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 WQ-Results-2017.xIsxMD-2 <br />