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Table 5. 2017 Water Quality Results-Little Deadwood Gulch -Upper Station(LDG-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 6/21/2017 I 10/24/2017 I 12/27/2017 MCL111 or SMCL1�1 <br /> Field Measurements <br /> Temperature(CC) 3.8 13.9 DryDry <br /> Conductivity(NS/cm) 177 193 Dry Dry <br /> Dissolved Oxygen(%) 10.6 9.14 Dry. Dry <br /> pH(S.U.) - 8.44 Dry. Dry 6-8.5 <br /> ORP(mV) 75 22.9 DryDry <br /> Flow(cfs) NA NA NA NA <br /> Lab Results <br /> Alkalinity,Bicarbonate 84.0 100 Dry Dry <br /> Alkalinity,Carbonate ND ND Dry Dry <br /> Alkalinity,Hydroxide ND ND Dry Dry <br /> Alkalinity,Total 84.0 100 Dry Dry <br /> Aluminum Dissolved by ICP ND ND Dry Dry 0.05 to 0.2(2) <br /> Ammonia ND ND Dry Dry TVS(4) <br /> Antimony Dissolved by ICPMS ND ND Dry Dry 0.006(1) <br /> Arsenic 200.2 by ICP-MS ND ND Dry Dry 0.01)1) <br /> Arsenic Dissolved by ICPMS ND 0.0006 Dry Dry 0.01)1) <br /> Barium Dissolved by ICPMS 0.0753 0.0899 Dry Dry 2(1) <br /> Beryllium Dissolved by ICPMS ND ND Dry Dry 0.004(1) <br /> Boron 200.2 by ICP ND ND Dry Dry <br /> Cadmium Dissolved by ICPMS ND ND Dry Dry 0.005(') <br /> Calcium Dissolved by ICP 25.4 29.2 Dry Dry <br /> Chloride by IC ND ND Dry Dry 250j2) <br /> Chromium 200.2 by ICPMS ND ND Dry Dry 0.11') <br /> Chromium NA 0.0025 Dry Dry <br /> Cobalt NA ND Dry Dry, <br /> Copper Dissolved by ICPMS 0.0003 0.0007 Dry Dry 1.3'1)j3),1.012) <br /> Cyanide,WAD ND ND Dry Dry 0.2(') <br /> Fluoride by IC ND ND Dry Dry 4.01'), 2.0121 <br /> Hardness,dis 87.4 101 Dry Dry <br /> Iron 200.2 by ICP ND 0.151 Dry Dry 0.30(2) <br /> Iron Dissolved by ICP ND ND Dry Dry 0.30(2) <br /> Lead 200.2 by ICPMS ND 0.0005 Dry Dry 0.015(1)(3) <br /> Lead Dissolved by ICPMS ND ND Dry Dry 0.01511)(3) <br /> Magnesium Dissolved by ICP 5.82 6.90 Dry Dry 0.05(2) <br /> Manganese Dissolved by ICPMS ND 0.0027 Dry Dry TVS 14) <br /> Mercury Dissolved by CVAA ND ND Dry Dry 0.002)1) <br /> Molybdenum Dissolved by ICPMS ND 0.0005 Dry Dry <br /> Nickel Dissolved by ICPMS 0.0010 0.0013 Dry Dry 0.1(1) <br /> Nitrate as N by IC 0.218 0.038 Dry Dry 10(1) <br /> Nitrate/Nitrite as N by IC Package 0.218 ND Dry Dry 10(1( <br /> Nitrite as N by IC ND ND Dry Dry 1)1) <br /> pH(S.U.) 8.17 8.41 Dry Dry 6-8.5 <br /> Selenium Dissolved by ICPMS ND ND Dry Dry 0.05j1) <br /> Silver Dissolved by ICPMS ND ND Dry Dry, 0.1012) <br /> Solids,Total Dissolved(TDS) 65.0 80.0 Dry Dry <br /> Solids,Total Suspended(TSS) ND 11.0 Dry Dry <br /> Sulfate by IC 10.1 11.2 Dry Dry 250(2) <br /> Thallium Dissolved by ICPMS ND 0.0005 Dry Dry 0,0021 i) <br /> Uranium Dissolved by ICPMS 0.2 0.2 Dry Dry 30 pg/L(1) <br /> Vanadium NA ND Dry Dry <br /> Zinc Dissolved by ICPMS ND ND Dry Dry 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 /> SGM P'Project Files\2017-460.001 Sunrise Mining-May Day Mine(M-Wafer Duality\ <br /> 01/15/2018 Tbls.1-10-May Day Idaho Mine Complex WD-Results-2017 xlsxLDG-1 <br />