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���COLORADO LEGACY LAND <br /> TABLE 3A:GROUNDWATER SAMPLE FIELD PARAMETERS <br /> Field Parameters <br /> MW-00 11/12/2020 15.4 7.03 11.0 456.6 99.4 3.67 Alluvial well.Above waste dumps,upstream ofsite. <br /> MW-0 11/11/2020 13.9 6.92 11.0 707 106.6 4.47 Alluvial well.Toe of south waste rock pile. <br /> MW-6 Not Sampled' -- -- -- -- -- .- Alluvial well. Near former Sump#2. <br /> MW-7 Not Sampled' Alluvial well. Near Sump#1 <br /> MW-12 Not Sampled' _ Below Sump#1.Alluvial well. <br /> MW-13 Not Sampled' _ __ __ __ __ __ Nitrogen purge.Replaced MW-10.Previous Sample ID=L1.Background well. <br /> MW-14 11/11/2020 115.1 7.27 8.5 253.8 -142.7 0.39 Nitrogen purge.Replaced MW-11. Previous Sample ID=L2.Background well. <br /> MW-15 11/12/2020 386.9 7.95 10.9 1084 25 2.31 Nitrogen purge.Previous Sample ID=L3.Bedrock well. <br /> MW-16 N/A.Monitor Water Transducer N/A N/A Level Only. malfunction.z N/A N/A N/A Previous Sample ID=L4.Bedrock well. <br /> MW-17 Not Sampled' Nitrogen purge.Previous Sample ID=L5. <br /> MW-18 Not Sampled' - -- -- -_ __ Previous Sample ID=L6.Bedrock well,installation targeted Illinois fault zone in alluvial valley. <br /> MW-19 11/11/2020 19.0 7.05 12.S 878 75.8 3.74 Toe of south waste rock pile.Previous Sample ID=L7. <br /> M W-20 Not Sampled' -- -- Usually dry.Top of south waste rock pile. <br /> Raw Feed Not Sampled Sample collected from spigot inside water treatment plant This is the water treatment plant <br /> intake from the mine pool.Previous Sample ID=Mine Refill. <br /> Sumps Not Sampled, Sample collected from sump water from Sump#1(Master Sump). <br /> Insufficient Volume'. <br /> Notes: <br /> ,Dry/insufficient volume to collect sample. <br /> 20bstruction in well.Transducer was unable to be installed and static water level meter was unable to collect measurement due to unknown obstruction in the well.Investigation with a downhole camera will take place Q2 2021. <br /> 'Raw Feed was unable to be sampled due to the planned,seasonal shutdown of the water treatment plant. <br /> +M W-1,M W-2,M W-3A,and M W-8 were removed in 2019;M W-4 and MW-5 were removed in 2008.MW-8 was replaced with MW-12.M W-10 and MW-11 were fouled(bentonite in screened interval)and replaced with MW-13 and M W-14. <br /> pS/cm=microSemiens per centimeter <br /> °C=degrees Celsius <br /> ft btoc=feet below top of casing <br /> ID=Identifier <br /> mg/L=milligrams per liter <br /> my=millivolts <br /> MW=Monitoring Well <br /> ORP=Oxidization Reduction Potential <br /> PACE 10 or 15 <br />