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Table 3. 2017 Water Quality Results-Beaver Pond(BP-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 112/27/2017 MCL111 or SMCL121 <br /> Field Measurements <br /> Temperature(°C) 2.8 8.3 9.1 4.7 <br /> Conductivity(pS/cm) 163 125 159 172 <br /> Dissolved Oxygen(%) 6.1 8.0 NA NA <br /> pH(S.U.) 7.50 7.11 7.00 6.99 6-8.5 <br /> ORP(mV) 54 65 NA NA <br /> Flow(cfs)' Pond Pond Pond Pond <br /> Lab Results <br /> Alkalinity,Bicarbonate 64.0 60.0 55.0 62.0 <br /> Alkalinity,Carbonate ND ND ND ND <br /> Alkalinity,Hydroxide ND ND ND ND <br /> Alkalinity,Total 64.0 60.0 55 62.0 <br /> Aluminum Dissolved by ICP ND ND ND ND 0.05 to 0.212) <br /> Ammonia ND ND ND ND TVS 141 <br /> Antimony Dissolved by ICPMS 0.0010 ND ND ND 0.00611) <br /> Arsenic 200.2 by ICP-MS 0.0039 ND ND ND 0.011'1 <br /> Arsenic Dissolved by ICPMS ND 0.0005 ND ND 0.01(1) <br /> Barium Dissolved by ICPMS 0.0652 0.0440 0.0586 0.0571 2(11 <br /> Beryllium Dissolved by ICPMS ND ND ND ND 0.0041' <br /> Boron 200.2 by ICP ND ND ND ND <br /> Cadmium Dissolved by ICPMS ND ND NA ND 0.005(1) <br /> Calcium Dissolved by ICP 24.8 19.1 25.4 26.9 <br /> Chloride by IC 1.19 ND ND ND 250(2) <br /> Chromium 200.2 by ICPMS ND ND ND 0.0011 0 1(1) <br /> Chromium NA 0.0012 NA NA <br /> Cobalt NA ND NA NA <br /> Copper Dissolved by ICPMS 0.0032 0.0027 0.0012 0.0009 1.3(1jj ),1.0(2) <br /> Cyanide,WAD ND ND ND ND 0.2(1) <br /> Fluoride by IC 0.220 0.232 0.226 0.233 4.0111, 2.012) <br /> Hardness,dis 76.6 58.7 77.7 82.0 <br /> Iron 200.2 by ICP 0.488 ND ND ND 0.30(2) <br /> Iron Dissolved by ICP ND ND ND ND 0.30(2) <br /> Lead 200.2 by ICPMS 0,0081 ND ND ND 0.015(113) <br /> Lead Dissolved by ICPMS ND 0.0007 ND ND 0.015(1(3) <br /> Magnesium Dissolved by ICP 3.54 2.68 3.48 3.59 0.05(2) <br /> Manganese Dissolved by ICPMS ND 0.0012 0.001 0.0010 TVS(4) <br /> Mercury Dissolved by CVAA ND ND ND ND 0.002(1) <br /> Molybdenum Dissolved by ICPMS 0.0011 0.0009 0.0008 0.0009 <br /> Nickel Dissolved by ICPMS 0.0010 0.0012 0.0013 0.0016 0.1(1) <br /> Nitrate as N by IC 1.12 0.042 0,032 0.083 10111 <br /> Nitrate/Nitrite as N by IC Package 1.12 0.0415 ND 0.0826 1011 <br /> Nitrite as N by IC ND ND ND ND 11'1 <br /> pH(S.U.) 7.27 8.22 7.7 7.37 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 /> Solids,Total Dissolved(TDS) 90.0 110 125 110 <br /> Solids,Total Suspended(TSS) 32.0 ND 3.25 1.00 <br /> Sulfate by IC 18.6 11.7 24.3 27.6 250(2) <br /> Thallium Dissolved by ICPMS ND 0.0008 ND ND 0.00211 <br /> Uranium Dissolved by ICPMS 0.3 0.1 0.2 0.3 30 pg/L(1) <br /> Vanadium NA ND NA NA <br /> Zinc Dissolved by ICPMS 0.0031 ND 0.0032 0.0051 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 /> lag/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-Water Quality\ <br /> 01/15/2018 Tbls.1-10-May Day Idaho Mine Complex WQ-Results-2017 xisxBP-1 <br />