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COLORADO LEGACY LAND <br /> TABLE ZA.SURFACE WATER SAMPLE FIELD PARAMETERS <br /> Field Parameters <br /> Location ID/ Flowrate pH Temperature Conductivity <br /> Sample ID Sample Date (ft3/s) (unitless) (°C) (VS/cm) ORP(mV) Dissolved Oxygen (mg/L) Notes/Location Description <br /> SW-AWD 8/7/2019 0.72 7.66 17.4 351.7 170.2 6.57 Upstream sample location. Above waste dump (AWD). Onsite. <br /> SW-NWRP 8/8/2019 0.10 7.23 16.0 353.1 -18.2 7.32 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 8/8/2019 0.54 7.57 17.8 331.7 62.0 7.55 Below property line(BPL).Downstream sample location,just below entrance gate. Offsite. <br /> SW-FBRG 8/8/2019 1.99 8.32 19.3 30S.8 132.8 6.32 First bridge(FBRG)after leaving site. Offsite. <br /> SW-ARH 8/8/2019 1.00 8.32 19.3 352.7 122.0 6.97 Above red hill(ARH). Near the large red boulders in the creek bed. Offsite. <br /> SW-LLHG 8/8/2019 0.29 8.14 19.9 365.5 134.3 8.33 Long lake head gate(LLHG). Just above head gate. Offsite. <br /> SW-WEIR 8/9/2019 1.71 7.72 19.2 381.6 141.8 7.50 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 />