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Table 7. 2018 Water Quality Results -May Day No. 1 Well(MD-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 219/2018 4/27/2018 1 816MO1$ I 12/6/2018 MCL{tt or SMCO) <br /> Field Measurements <br /> Temperature °C 7.71 7.81 7.51 7.5 <br /> Conductivity S/cm) 751 755 764 760 <br /> H S.U. 7.181 7.141 7.121 7.06 6-8.5 <br /> Static Water Level feet 1431 1401 1421 143 <br /> Lab Results <br /> Aluminum Dissolved by ICP ND ND ND ND 0.05 to 0.2(2) <br /> Antimony Dissolved by ICPMS ND ND ND 0.0005 0.006(') <br /> Arsenic Dissolved by ICPMS ND ND ND ND 0.0111) <br /> Barium Dissolved by ICPMS 0.0181 0.0169 0,0162 0.0153 2(1) <br /> Beryllium Dissolved by ICPMS ND ND ND ND 0.004"' <br /> Boron Dissolved by ICP ND ND ND ND <br /> Cadmium Dissolved by ICPMS ND ND ND ND 0.005(') <br /> Chromium Dissolved by ICPMS 0.0093 0.0081 0.0135 0.0129 0.10) <br /> Cobalt Dissolved by ICPMS 0.0005 0.0005 0.0004 0.0004 <br /> Copper Dissolved by ICPMS 0.0004 0.0030 0.0015 0.0039 1.31'113j 1.0i2j <br /> Cyanide,WAD ND ND ND ND 0.2(1) <br /> Fluoride by IC 0.241 0 233 0.228 0.275 4.011I 2.0(2) <br /> Iron Dissolved by ICP ND ND ND ND 0.30121 <br /> Lead Dissolved by ICPMS ND ND ND ND 0.015(')(3) <br /> Manganese Dissolved by ICPMS 236 216 210 202 TVS(4) /L <br /> Mercury Dissolved by CVAA ND ND ND ND 0.002(') <br /> Molybdenum Dissolved by ICPMS ND ND ND ND <br /> Nickel Dissolved by ICPMS 0.0092 0.0070 0.0048 0.0049 0.10) <br /> Nitrate as N by IC ND ND ND ND 10(') <br /> Nitrate/Nitrite as N by IC Package ND ND ND ND 100) <br /> Nitrite as N by IC ND ND ND ND 1(1) <br /> H S.U 7.51 7.32 7.26 7.38 6-8.5 <br /> Selenium Dissolved by ICPMS ND ND ND ND 0.05(') <br /> Silver Dissolved by ICPMS ND ND ND ND 0.10121 <br /> Sodium Dissolved by ICP 2.54 2.52 2.35 2.59 <br /> Solids,Total Dissolved TDS 555 535 520 530 <br /> Sulfate by IC 154 145 150 152 250121 <br /> Thallium Dissolved by ICPMS ND ND 0.0005 ND 0.002 <br /> Uranium Dissolved by ICPMS 0.7 0.8 0.7 0.9 30 /L(') <br /> Vanadium NDI NDI ND ND <br /> Zinc Dissolved by ICPMS 1 0.00321 0.00531 OM421 0.0036 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 /> µg/L=microgram per Liter <br /> NA=not applicable <br /> ND=not detected <br /> TVS=table value standards <br /> SGM <br /> 12/262018 P:\Project Files\2017-460.001 SunriseMining-MayDayMine\M-Water Qualily\2018\Q4\ <br /> Tbls.1-10-04-May Day Idaho Mine Complex WQ-Resufis-2018.xIsxMD-1 <br />