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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 mg1L unless otherwise noted <br />Analyte <br />Date <br />Safe Drinking Water Act <br />MCLj1I orSMCLf2l <br />2/912018 1 412712018 <br />Field Measurements <br />Temperature `C <br />7.71 <br />78 <br />Conductivity Slcm <br />7511 <br />747 <br />H SU <br />7.181 <br />714 <br />6-8.5 <br />Static Water Level feet <br />1431 <br />140.17 <br />Lab Results <br />Aluminum Dissolved U ICP <br />ND <br />ND <br />0.05 to 0.2() <br />Antimony Dissolved by ICPMS <br />ND <br />ND <br />0 mll <br />Arsenic Dissolved by ICPMS <br />ND <br />ND <br />0.010) <br />Barium Dissolved U ICPMS <br />0.0181 <br />0.0169 <br />2(1) <br />Beryllium Dissolved by ICPMS <br />ND <br />ND <br />0,004(') <br />Boron Dissolved by ICP <br />ND <br />ND <br />Cadmium Dissolved by ICPMS <br />ND <br />ND <br />0,0051'} <br />Chromium Dissolved by ICPMS <br />00093 <br />00081 <br />0.101 <br />Cobalt Dissolved by ICPMS <br />0.0005 <br />00005 <br />Copper Dissolved by ICPMS <br />0.0004 <br />00030 <br />1, 3t'� , 1.0121 <br />Cyanide, WAD <br />ND <br />ND <br />0.2(') <br />Fluoride by IC <br />0 241 <br />0 233 <br />4#14, 2-012Y <br />Iron Dissolved by ICP <br />ND <br />ND <br />0,3012) <br />Lead Dissolved by ICPMS <br />ND <br />ND <br />0.015(1)(3) <br />Manganese Dissolved by ICPMS <br />236 <br />216 <br />TVS 14j MQIL <br />Mercury Dissolved by CVAA <br />ND <br />ND <br />0 0021') <br />Molybdenum Dissolved by ICPMS <br />ND <br />ND <br />Nickel Dissolved by ICPMS <br />00092 <br />00070 <br />0-10) <br />Nitrate as N by IC <br />ND <br />ND <br />100) <br />NitralelNltnte as N by IC Package <br />ND <br />ND <br />10") <br />Nitrite as N by IC <br />ND <br />ND <br />111) <br />H S.0 <br />751 <br />732 <br />6.8,5 <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 />254 <br />252 <br />Solids, Total Dissolved (TDS) <br />555 <br />535 <br />Sulfate by IC <br />154 <br />145 <br />1 250" <br />Thallium Dissolved by ICPMS <br />ND <br />ND <br />000 2 <br />Uranium Dissolved by ICPMS <br />0.7 <br />08 <br />30jig/L") <br />Vanadium <br />ND <br />ND <br />Zinc Dissolved by ICPMS <br />0.0032 <br />0.0053 <br />TVSi4" <br />Notes <br />mg1L = milligrams per Liter <br />"C = degrees Cels us <br />pSrcm = microsiemens per centimeter <br />S.0 = standard units <br />mV millivolts <br />pgtL = microgram per Luer <br />NA = not applicable <br />ND = not detected <br />TVS = table value standards <br />SGV P Troject F 1es12017.460 001 Surrise Miring -May flay Mine'JA-Water Ouald)A20184021 <br />05/1412018 This 1.10.01 -May Day Idatio Mine Complex W0 Results -2016 xtsxMD-1 <br />