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Table 10. 2018 Water Quality Results - Idaho Mill Well (ID -GW) <br />May Day Idaho Mine Complex <br />Sunrise Mining, LLC <br />All values in mg1L unless otherwise noted <br />Analyte <br />Date <br />Safe Drinking Water Act <br />MCLnI or SMCLM <br />?19!2018 412712018 <br />Field Measurements <br />Temperature °C <br />6.7 <br />70 <br />Conductivity Slcm) <br />287 <br />296 <br />H S.U. <br />824 <br />819 <br />6 8 5 <br />Static Water Level feet <br />46751 <br />4651 <br />Lab Results <br />Aluminum Dissolved by ICP <br />ND <br />ND <br />0 05 to 0 tin <br />Antimony Dissolved by ICPMS <br />00006 <br />ND <br />0.006111 <br />Arsenic Dissolved by ICPMS <br />00015 <br />0.0013 <br />0.0111) <br />Barium Dissolved by ICPMS <br />0.0546 <br />0.0476 <br />21') <br />Beryllium Dissolved by ICPMS <br />ND <br />ND <br />0 004(1) <br />Boron Dissolved by ICP <br />ND <br />ND <br />Cadmium Dissolved by ICPMS <br />00001 <br />0.0001 <br />0.005x) <br />Chromium Dissolved by ICPMS <br />00037 <br />0.0030 <br />0.140 <br />Cobalt Dissolved by ICPMS <br />0.0001 <br />0.0001 <br />Copper Dissolved by ICPMS <br />00009 <br />00022 <br />1 3(4)(3F' 1.042) <br />Cyanide. WAD <br />ND <br />ND <br />0 241) <br />Fluoride by IC <br />0105 <br />ND <br />4.011j 2.0421 <br />Iran Dissolved by ICP <br />ND <br />ND <br />0.30(21 <br />Lead Dissolved by ICPMS <br />ND <br />ND <br />0 01500» <br />Manganese Dissolved b ICPMS <br />0.5 <br />86 <br />TVSi4' 1L <br />Mercury Dissolved by CVAA <br />NO <br />ND <br />0.002t') <br />Molybdenum Dissolved by ICPMS <br />0.0009 <br />0.0010 <br />Nickel Dissolved by ICPMS <br />0.0027 <br />0.0026 <br />0 10) <br />Nitrate as N by IC <br />0.148 <br />0.164 <br />1011) <br />Nitrate/Nitrite as N by IC Package <br />0.148 <br />0.164 <br />1011) <br />Nitrite as N by IC <br />ND <br />ND <br />10n <br />H S.U. <br />8.21 <br />8.23 <br />6-85 <br />Selenium Dissolved by ICPMS <br />ND <br />ND <br />0.0511) <br />Silver Dissolved by ICPMS <br />ND <br />ND <br />0.1011 <br />Sodium Dissolved by ICP <br />4.92 <br />5.48 <br />Solids, Total Dissolved (TDS) <br />175 <br />170 <br />Sulfate by IC <br />334 <br />35.9 <br />250(21 <br />Thallium Dissolved by ICPMS <br />ND <br />ND <br />0.002 <br />Uranium Dissolved by ICPMS <br />1.2 <br />1.4 <br />30 /0 ) <br />Vanadium <br />ND <br />ND <br />Zinc Dissolved by ICPMS <br />ND <br />ND <br />TVSr4)tiqlL <br />Nates. <br />mglL = milligrams per Liter <br />T = degrees Celsius <br />NS/cm = microsiemens per centimeter <br />S.0 = standard units <br />mV = millivolts <br />Ng/L = microgram per Liter <br />NA = not applicable <br />ND = not detected <br />TVS = table value standards <br />Sam P tiProjed FI1es52417-460.001 Sunrise Miring -May bay Mme1M. Water owWy120IM021 <br />0511412018 Tbls 1=10.01 -May bay Idaho Mine Complex WO PesUts-2018.x.sxiDGW <br />