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Table 6. 2017 Water Quality Results-Little Deadwood Gulch -Lower Station(LDG-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 6/21/2017 I 10/24/2017 I 12/27/2017 MCL111 or SMCLf�1 <br /> Field Measurements <br /> Temperature(°C) 1.24_ Dry Dry Dry <br /> Conductivity(pS/cm) 186 Dry Dry Dry <br /> Dissolved Oxygen(%) 12 Dry Dry Dry <br /> pH(S.U.) 7.9 Dry Dry Dry 6-8.5 <br /> ORP(mV) 52, Dry Dry Dry <br /> Flow(cfs) - Dry Dry Dry <br /> Lab Results <br /> Alkalinity,Bicarbonate 89.0 Dry Dry Dry _ <br /> Alkalinity,Carbonate ND Dry Dry Dry <br /> Alkalinity,Hydroxide ND Dry Dry Dry <br /> Alkalinity,Total 89.0 Dry Dry Dry <br /> Aluminum Dissolved by ICP ND Dry Dry Dry 0.05 to 0.2(21 <br /> Ammonia ND Dry Dry Dry TVS 0) <br /> Antimony Dissolved by ICPMS ND Dry Dry Dry 0.006'11 <br /> Arsenic 200.2 by ICP-MS ND Dry Dry Dry 0.01'1) <br /> Arsenic Dissolved by ICPMS ND Dry Dry Dry 0.01'1) <br /> Barium Dissolved by ICPMS 0.0807 Dry Dry Dry 2)1) <br /> Beryllium Dissolved by ICPMS ND Dry Dry Dry 0.004'11 <br /> Boron 200.2 by ICP ND Dry Dry Dry <br /> Cadmium Dissolved by ICPMS ND Dry Dry Dry 0.005'1) <br /> Calcium Dissolved by ICP 26.8 Dry Dry Dry <br /> Chloride by IC ND Dry Dry Dry 250'21 <br /> Chromium 200.2 by ICPMS NA Dry Dry Dry 0.1'1) <br /> Chromium ND Dry Dry Dry <br /> Cobalt NA Dry Dry Dry <br /> Copper Dissolved by ICPMS 0.0015 Dry Dry Dry 1.3j10j,1.0)2) <br /> Cyanide,WAD ND Dry Dry Dry 0.2(1) <br /> Fluoride by IC ND Dry Dry Dry 4.0'1), 2.012) <br /> Hardness,dis 94.3 Dry Dry Dry <br /> Iron 200.2 by ICP ND Dry Dry Dry 0.30)2) <br /> Iron Dissolved by ICP ND Dry Dry Dry 0.30)2) <br /> Lead 200.2 by ICPMS ND Dry Dry Dry 0.015'1113) <br /> Lead Dissolved by ICPMS 0.0007 Dry Dry Dry 0.0150113) <br /> Magnesium Dissolved by ICP 6.65 Dry Dry Dry 0.05(2) <br /> Manganese Dissolved by ICPMS ND Dry Dry Dry TVS'4) <br /> Mercury Dissolved by CVAA ND Dry Dry Dry 0.002'1) <br /> Molybdenum Dissolved by ICPMS ND Dry Dry Dry <br /> Nickel Dissolved by ICPMS 0.0012 Dry Dry Dry 0.1'1) <br /> Nitrate as N by IC 0.169 Dry Dry Dry 10(1) <br /> Nitrate/Nitrite as N by IC Package 0.169 Dry Dry Dry 1011) <br /> Nitrite as N by IC ND Dry Dry Dry 1(1) <br /> pH(S.U.) 8.14 Dry Dry Dry 6-8.5 <br /> Selenium Dissolved by ICPMS ND Dry Dry Dry 0.0511) <br /> Silver Dissolved by ICPMS ND Dry Dry Dry 0.10'2) <br /> Solids,Total Dissolved(TDS) 90.0 Dry Dry Dry <br /> Solids,Total Suspended(TSS) 2.50 Dry Dry Dry <br /> Sulfate by IC 11.9 Dry Dry Dry 250(2) <br /> Thallium Dissolved by ICPMS ND Dry Dry Dry 0.0021 1 <br /> Uranium Dissolved by ICPMS 0.2 Dry Dry Dry 30 pg/L111 <br /> Vanadium NA Dry Dry Dry <br /> Zinc Dissolved by ICPMS 0.0036 Dry Dry Dry TVs'') <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 /> pg/L=microgram per Liter <br /> NA=not applicable <br /> ND=not detected <br /> SGM P:\Project Files Q017-460.001 Sunrise Mining-May Day Mine\M-Water Quality\ <br /> 01/15/2018 Tbls.1-10-May Day Idaho Mine Complex WQ-Results-2017.xIsxLDG-2 <br />