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COLORADO LEGACY LAND <br /> TABLE 213: SUMMARY OF GROUND WATER ANALYTICAL DATA <br /> Sample Location <br /> Parameter Units Domestic Water Supply-Drinking MW-00 MW-0 MW-6 MW-15 MW-18 Raw Feed Sumps <br /> Water Standards (CDPHE 2018) <br /> 7/28/2020 7/28/2020 7/28/2020 7/28/2020 7/28/2020 7/28/2020 7/28/2020 <br /> Iron m L 0.3 <0.06 0.08 <0.06 0.11 0.58 4.6 _ 3.02 <br /> Lead m L 0.05 <0.0001 <0.0001 <0.0001 <0.0001 0.0001 <0.0002 <0.00013 <br /> Manganese m L 0.05 <0.01 <0.01 <0.01 0.03 0.15 0.7 0.84 <br /> Mercury m L 0.002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <br /> Molybdenum m L 0.21 0.0003 0.0148 0.0254 0.013 0.0489 0.401 0.0332 <br /> Silver m L 0.05 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0002 <0.0001 <br /> Thallium m L 0.002 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0002 <0.0001 <br /> Uranium m /L 0.03 0.002 0.357 1.86 0.0346 0.529 13.3 0.854 <br /> Zinc m L 5.0 <0.02 <0.02 <0.02 <0.02 <0.02 <0.04 0.05 <br /> Radionuclides <br /> Gross Alpha Ci L 15 1.8 170 1,100 200 310 9,100 580 <br /> Gross Beta Ci L - 3.0 62 300 58 110 3300 180 <br /> Radium 226- Dissolved Ci L - 0.42 0.9 0.94 36 3.6 120 6.2 <br /> Radium 226-Total Ci L - 0.39 0.29 1.2 32 4 110 5.7 <br /> Radium 228-Total Ci L - 0.62 -0.24 0.03 0.77 3.8 -0.02 -0.48 <br /> Radium 226+ Radium 228-Total Ci L 5.0 0.39 0.29 1.2 32 7.8 110 5.7 <br /> Notes: <br /> Bold and grey shaded analytical results are greater than the criteria. <br /> Raw Feed sample was collected from Shaft#2. <br /> CaCO3=Calcium Carbonate <br /> mg/L=milligrams per Liter <br /> pCi/L=picocuries per Liter <br /> Chromium III=Trivalent Chromium <br /> Chromium IV=Tetravalent Chromium <br /> NO2=Nitrite <br /> NO3=Nitrate <br /> N/A=Standard not Defined <br /> Source: <br /> CDPHE. 2018. Regulation No.41-The Basic Standards for Ground Water(5 CCR 1002-41). Water Quality Control Commission. December. <br /> PAGE 9 OF 12 <br />