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COLORADO LEGACY LAND <br /> TABLE 3B:SUMMARY OF GROUND WATER ANALYTICAL DATA <br /> Domestic Water Supply- Sample Location <br /> Parameter Units Drinking Water MW-00 MW-0 MW-13 MW-14 MW-is <br /> Standards (CDPHE 2018) 10/06/2022 10/06/2022 10/11/2022 10/11/2022 10/12/2022 <br /> Zinc mg/L 5 <0.02 <0.02 <0.02 <0.02 <0.02 <br /> Metals-Total <br /> Aluminum mg/L 5 <0.05 <0.05 <0.05 <0.05 <0.05 <br /> Antimony mg/L 0.006 <0.0004 <0.0004 <0.0004 0.0008 <0.0004 <br /> Arsenic mg/L <0.01 <0.0002 <0.0002 0.0003 0.0004 0.0038 <br /> Boron mg/L 0.75 0.03 0.041 <0.03 <0.03 0.2 <br /> Chromium mg/L 0.1 <0.02 <0.02 <0.02 <0.02 <0.02 <br /> Copper mg/L 1 <0.01 <0.01 <0.01 <0.01 <0.01 <br /> Iron mg/L 0.3 <0.06 <0.06 0.067 0.133 0.161 <br /> Lead mg/L <0.05 <0.0001 <0.0001 0.00033 0.00048 0.0001 <br /> Manganese mg/L <0.05 <0.01 <0.01 0.436 0.07 0.019 <br /> Mercury mg/L 0.002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <br /> Molybdenum mg/L 0.21 0.00036 0.0142 0.0955 0.00219 0.0181 <br /> Silver mg/L <0.05 <0.0001 <0.0001 <0.0001 <0.0002 <0.0001 <br /> Thallium mg/L 0.002 <0.0001 <0.0001 <0.0001 <0.0002 <0.0001 <br /> Uranium mg/L <0.03 0.00251 0.742 0.0224 0.00309 0.0346 <br /> Zinc mg/L 5 <0.02 <0.02 <0.02 <0.02 <0.02 <br /> Radionuclides <br /> Gross Alpha pCi/L 15 1.3 390 21 3 210 <br /> Gross Beta pCi/L - 1.5 150 10 7.1 27 <br /> Radium 226-Dissolved pCi/L - 0.4 0.12 0.31 0.11 39 <br /> Radium 226-Total pCi/L - 0.4 0.16 0.43 0.13 39 <br /> Radium 228-Total pCi/L 5 0.55 -0.75 1.1 -0.08 0.53 <br /> Radium 226+ Radium 228-Total pCi/L 0 0 0 0.43 0 39 <br /> Notes: <br /> Bold and grey shaded analytical results were detected above the criteria. <br /> B= Estimated concentration <br /> CaCO3=Calcium Carbonate <br /> mg/L= Milligrams per Liter <br /> pCi/L= PicoCuries per Liter <br /> Chromium III=Trivalent Chromium <br /> Chromium IV=Hexavalent Chromium <br /> NO2=Nitrite <br /> NO3=Nitrate <br /> N/A=Standard not Defined <br /> Source: <br /> CDPHE. 2021. Regulation No.41 -The Basic Standards for Ground Water(5 CCR 1002-41). Water Quality Control Commission. December. <br /> PAGE 13 of 16 <br />