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COLORADO LEGACY LAND <br /> TABLE 1A.SA&CE WA R SAMPLE FIELD PARAMETERS <br /> Field Parameters <br /> Location ID/ Flowrate pH Temperature Conductivity <br /> Sample ID Sample Date (ft3/s) (unitless) (°C) (µS/cm) ORP(mV) Dissolved Oxygen(mg/L) Notes/Location Description <br /> SW-AWD 3/10/2020 2.97 7.45 1.2 206.4 150.3 16.30 Upstream sample location. Above waste dump(AWD).Onsite. <br /> SW-NWRP 3/10/2020 7.035 7.50 1.9 212.2 126.0 15.54 Downstream of the North Waster Rock Pile(NWRP). <br /> SW-AO01 Not Sampled,Dry' -- -- -- -- -- -- Above former discharge point.Onsite.Directly below the west waste rock pile. <br /> SW-BDIS Not Sampled,Dry' -- -- -- -- -- Below former discharge(BDIS).Onsite.Below former concrete containment structure. <br /> SW-PL Not Sampled,Dry' -- -- -- -- Former parking lot(PL) location.Onsite. <br /> SW-OS Not Sampled,Dry' -- -- -- -- -- -- Former ore sorter(OS)location.Onsite. <br /> SW-BOS Not Sampled,Dry' -- -- -- -- -- -- Below former ore sorter(BOS)location.Onsite. <br /> SW-GS Not Sampled,Dry' -- -- -- -- -- -- Former guard shack(GS)location.Onsite. <br /> SW-BPL 3/3/2020 4.34 7.36 1.1 184.6 283.9 13.17 Below property line(BPL).Downstream sample location,just below entrance gate.Offsite. <br /> SW-FBRG 3/10/2020 6.3 7.98 8.4 263.3 197.9 10.20 First bridge(FBRG)after leaving site.Offsite. <br /> SW-ARH 3/3/2020 6.32 7.85 1.2 198.8 234.3 14.43 Above red hill (ARH). Near the large red boulders in the creek bed.Offsite. <br /> SW-LLHG 3/3/2020 1.36 7.97 2.76 210.1 187.6 12.70 Long lake head gate(LLHG). Just above head gate.Offsite. <br /> SW-WEIR 3/3/2020 1.30 7.90 3.7 220.3 184.4 11.81 Weir structure before Ralston Reservoir <br /> Notes: <br /> 'There was no water present at these locations. <br /> µS/cm=microSiemens per centimeter <br /> °C=degrees Celsius <br /> ft3/s=cubic feet per second <br /> kg/day=kilogram per day <br /> mg/L=milligrams per liter <br /> my=millivolts <br /> ORP=Oxidization Reduction Potential <br /> PAGE 4 OF 12 <br />