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Table 4. 2019 Water Quality Results'- <br /> Idaho Mill Spring(ID-SW) <br /> May Day Idaho Mine Complex <br /> Sunrise Mining,LLC <br /> All values in mg/L unless otherwise noted <br /> Altalyta Date Safe DfM*Ing WNter Att <br /> 8120019 MCLI'4or MGLIM <br /> Field Measurements <br /> Temperature °C 1 661 <br /> Conductivity /cm 190 <br /> H SU 778 6-85 <br /> Flow cfs NA <br /> Lab Results <br /> Alkalinity,Bicarbonate 95 <br /> Alkalinity,Carbonate NO <br /> Alkalinity,H drowde NO <br /> Alkalinity,Total 95 <br /> Aluminum Dissolved by ICP NO 0 05 to 0 2121 <br /> Ammonia ND TVS(4) <br /> Antimony Dissolved by ICPMS ND 00061'j <br /> Arsenic 200 8 by ICPMS NDI 0 010 <br /> Arsenic Dissolved by ICPMS 00009 0 011'i <br /> Banum Dissolved by ICPMS 00657 211i <br /> Beryllium Dissolved by ICPMS NO 0 000j <br /> Boron 200 7 by ICP NO <br /> Cadmium Dissolved by ICPMS NO 0 0051'j <br /> Calcium Dissolved by ICP 284 <br /> Chloride by IC NO 250121 <br /> Chromium 200 8 by ICPMS NO 0 10) <br /> Copper Dissolved by ICPMS 00007 1 31'113t,1 012j <br /> Cyanide,WAD NO 021'I <br /> Fluoride by IC ND 4 01'l, 2 012j <br /> Hardness,dis 103 <br /> Iron 200 7 by ICP NO 0 3012j <br /> Iron Dissolved by ICP NO 0 3012j <br /> Lead 200 8 by ICPMS 0 008 0 01511jj3j <br /> Lead Dissolved by ICPMS NO 0 0151'i13i <br /> Magnesium Dissolved by ICP 772 0 0512i <br /> Manganese Dissolved by ICPMS NO TVS(4) /L <br /> Mercury Dissolved by CVAA NO 0 0021'i <br /> Molybdenum Dissolved by ICPMS ND <br /> Nickel Dissolved by ICPMS 000051 0 11'i <br /> Nitrate as N by IC 0 097 100i <br /> Nitrate/Nitnte as N by IC Package 00972 1011 <br /> Nitrite as N by IC NO 11) <br /> H SU 791 6-85 <br /> Selenium Dissolved by ICPMS NO 0 051'1 <br /> Silver Dissolved by ICPMS NO 0 10121 <br /> Solids,Total Dissolved TDS 75 <br /> Solids Total Suspended(TSS) ND <br /> Sulfate by IC 155 250121 <br /> Thallium Dissolved by ICPMS NO 0 002 <br /> Uranium Dissolved b ICPMS 05 <br /> Zinc Dissolved b ICPMS 00115 TVS141 <br /> Notes <br /> mg/L=milligrams per Liter <br /> °C=degrees Celsius <br /> pS/cm=mcrosiemens per centimeter <br /> S U=standard units <br /> mV=millivolts <br /> cfs=cubic feet per second <br /> Ng1L=mcrogram per Liter <br /> NA=not applicable <br /> NO=not detected <br /> TVS=table value standards <br /> Footnotes <br /> Single sample for 01 and 02 results per DRMS approval letter dated June 21,2019 <br /> (1)SDWA NPOWR MCL=Safe Drinking Water Act National Primary Drinking Water <br /> Regulations Maximum Contaminant Level These are legally enforceable standards that apply <br /> to public drinking water systems Primary standards protect public health by limiting the levels of <br /> (2)SDWA NSDWR SMCL=Safe Drinking Water Act National Secondary Drinking water <br /> Regulations Secondary Maximum Containment Level These are non-enforceable guidelines <br /> regulating contaminants that may cause cosmetic effects(such as skin or tooth discoloration) <br /> (3)Treatments Technique(TT) A required process intended to reduce the level of a <br /> contaminants in drinking water Lead and copper are regulated by a Treatment Technique that <br /> requires a system to control the corrosiveness of their water If more than 10%of tap eater <br /> (4)1002-31-Regulation 31-Colorado Water Quality Control Division,Tables III and IV <br /> SGM <br /> 0711 22 01 9 P\Project FAes1201 7-460 001 SunnaeMmmg-MeyDayMmeW-Water QuaIp120191 <br /> Tbls 1-10-01-02-May Day Idaho Mme Complex WQ-Rewlta20191D-Spr" <br />