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COLORADO LEGACY LAND <br /> >A. D PARAMETERS w <br /> Field Parameters <br /> Location ID/ <br /> Sample ID Sample Date Flowrate pH Temperature Conductivity <br /> (ft3/s) (unitless) (°C) (µS/cm) ORP(mV) Dissolved Oxygen(mg/L) Notes/Location Description <br /> SW-AWD Not Sampled,Dry' -- -- -- -- -- -- Upstream sample location. Above waste dump (AWD).Onsite. <br /> SW-NWRP 7/22/2020 0.99 6.00 13.9 325.6 -1.5 2.55 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 7/22/2020 0.21 7.13 25.2 268.7 100.5 2.94 Below property line(BPL).Downstream sample location,just below entrance gate.Offsite. <br /> SW-FBRG 7/28/2020 6.48 7.95 13.2 284.4 75.9 9.39 First bridge (FBRG)after leaving site.Offsite. <br /> SW-ARH 7/22/2020 1.27 7.91 30.1 480.6 2.8 2.51 Above red hill (ARH). Near the large red boulders in the creek bed.Offsite. <br /> SW-LLHG 7/22/2020 0.3032 7.65 25.0 418.5 39.9 2.70 Long lake head gate(LLHG). Just above head gate.Offsite. <br /> SW-WEIR 7/22/2020 0.15 6.57 16.2 333.2 91.1 2.74 Weir structure before Ralston Reservoir Offsite. <br /> Notes: <br /> 'There was no water present at these locations. <br /> zFrom 2019 to present the flow was inadvertently measured outflow from head gate,not full stream.Future measurements shall reflect full stream flow at sample location. <br /> VS/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 /> mV=millivolts <br /> ORP= Oxidization Reduction Potential <br /> PAGE 4 OF 12 <br />