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COLORADO LEGACY LAN <br /> TABLE 3B:SUMMARY OF GROUND WATER ANALYTICAL DATA <br /> Domestic Water Sample Location <br /> Parameter Units Supply-Drinking Water Standards MW-00 MW-(] MW-13 MW-14 MW-15 MW-19 Raw Feed <br /> (CDPIIE2021) 12/08/2021 12/08/2021 10/13/2021 10/13/2021 10/12/2021 10/21/2 221 10/19/2021 <br /> Zinr Ingli, - <0.02 <0.02 10.02 <0.02 <0.02 <0.02 <0.04 <br /> Aluminum mg/L 5 0,071 B <0.05 <0.05 <0.05 <0.0 <O.Q; <0.1 <br /> Antimony mg/L 0.006 <0.0004 <0.0004 -0.0004 0.00149 B <0.0004 <0,0004 <0.0008 <br /> Arsenic mg/L 0.01 <0.0002 <0.0002 <0.0002 0.0004B 0.00497 <0.0002 0.0146 <br /> Boron mg/L 0.75 <0.03 <0.03 <0.03 <0.03 0.214 0.076 B 0.28S <br /> Chromium mg/L 0.1 <0.02 4.02 4.02 <0.02 4.02 <0.02 <0.04 <br /> Copper mg/L 1 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.02 <br /> Iron mg/L 0.3 0.115 B 4.06 <0.06 0.422 0.122 B <0.06 7.68 <br /> Lead mg/L 0.05 0.0001 B <0.0001 <0.0001 0.00012 B <0.0001 <0.0001 <0.0002 <br /> Manganese mg/L 0.05 <0.01 <0.01 0.553 0.204 0.021 B <0.01 0.738 <br /> Mercury mg/L 0.002 <0.0002 <0.0002 <0.0002 4.0002 <0.0002 <0.0002 <0.0002 <br /> Molybdenum mg/L 0.21 0.00046 B 0.014 0.0926 0.00345 0.0157 0.031 0.83 <br /> Silver mg/L 0.05 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0002 <br /> Thallium mg/L 0.002 <0.0001 -0.0001 4.0001 <0.0001 <0.0001 <0.0001 <0.0002 <br /> Uranium mg/L 0.03 0.00241 0.647 0.0252 0.00202 0.0313 1.13 14.6 <br /> Zinc mg/L 5 4.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.04 <br /> r . <br /> Gross Alpha pCi/L 15 5.5 230 28 3.1 230 740 19000 <br /> Gross Beta pCi/L - 12 110 19 9.4 82 350 6700 <br /> Radium 226-Dissolved pCi/L - 0.15 0.11 0.54 0.12 52 0.43 28 <br /> Radium 226-Total pCi/L - 0.37 0.13 0.29 0.16 33 0.69 93 <br /> Radium 228-Total pCi/L - 0.15 0.82 3.7 2.6 1 3 0.52 0.1 <br /> Radium 226♦Radium 228-Total pCi/L 5 0 1 0 3.7 2.6 36 0 93 <br /> Notes: <br /> Bold and grey shaded analytical results are 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=Tetravalent Chromium <br /> NO,=Nitrite <br /> NO3=Nitrate <br /> N/A=Standard not Defined <br /> Source: <br /> CDPHE. 2021. Regulation No.41-The Basic Standards for Ground Water(S CCR 1002-41).Water Quality Control Commission. December. <br /> PAGE 12 OF 15 <br />