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COLORADO LEGACY LAND <br /> TABLE 213: SUMMARY OF GROUND WATER ANALYTICAL DATA <br /> Domestic Water Supply- Sample Location Sump <br /> Parameter Units Drinking Water Standards MW-00 MW-0 MW-6 MW-7 MW-13 MW-14 MW-is MW-17 MW-18 MW-19 Raw Feed Composite <br /> (CDPHE 2018) 6 2 2020 6/2/2020 6/2/2020 6/3/2020 6/17/2020 6/17/2020 6/17/2020 6/17/2020 6/4/2020 6/4/2020 6/4/2020 6/4/2020 <br /> Lead m L 0.05 <0.0001 0.0001 <0.0001 0.0002 0.0004 0.0006 0.0002 0.0004 0.0003 <0.0001 <0.0001 0.0002 <br /> Manganese m L 1 0.05 <0.01 <0.01 <0.01 0.02 0.57 0.72 0.03 0.12 0.15 <0.01 0.68 <0.01 <br /> Mercury m L 0.002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <br /> Molybdenum m L 0.21 0.0007 0.0131 0.0283 0.0331 0.10 0.0058 0.0038 0.0453 0.0457 0.0437 0.0814 0.0264 <br /> Silver m L 0.05 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 0.0008 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <br /> Thallium m L 0.002 <0.0001 <0.0001 I <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <br /> Uranium mg/L 1 0.03 0.0081 0.227 1.23 1.80 0.025 0.002 0.032 0.096 0.372 0.896 5.13 1.22 <br /> Zinc m L 5.0 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <br /> Radionuclides <br /> Gross Alpha Ci L 15 3.5 130 620 1,300 24 7.0 230 82 240 610 4,800 770 <br /> Gross Beta Ci L - 5.2 43 170 360 12 9.5 83 29 81 180 1600 230 <br /> Radium 226- Dissolved Ci L - 0.37 0.33 0.86 0.71 0.85 0.56 40 0.71 4.7 1.7 73 0.68 <br /> Radium 226-Total Ci L - 0.27 0.31 0.79 0.83 0.49 0.53 34 0.98 5.0 1.7 67 0.58 <br /> Radium 228-Total Ci L - 0.52 1 0.85 1.0 1 0.56 1 0.68 1 0.13 1 0.94 1 0.52 1 3.6 1 0.25 1 1.1 1 0.24 <br /> Radium 226+ Radium 228-Total Ci L 5.0 0.27 0.31 0.79 0.83 0.49 0.53 34 .98 8.6 1.7 67 0.58 <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 />