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COLORADO LEGACY LAND <br /> TABLE 313:SUMMARY OF GROUNDWATER ANALYTICAL DATA <br /> Domestic Water Supply 1 - Sample Location <br /> Parameter Units Drinking Water MW-7 MW-19 <br /> Standards(CDPHE 2021 02/15/2022 02/15/2022 <br /> Uranium mg/L 0.03 0.493 1.18 <br /> Zinc mg/L 5 <0.02 <0.02 <br /> Metals-Total <br /> Aluminum mg/L 5 2.52 <0.05 <br /> Antimony mg/L 0.006 0.00043 <0.0004 <br /> Arsenic mg/L 0.01 0.00121 <0.0002 <br /> Boron mg/L 0.75 0.037 0.055 <br /> Chromium mg/L 0.1 <0.02 <0.02 <br /> Copper mg/L 1 <0.01 <0.01 <br /> Iron mg/L 0.3 3.41 <0.06 <br /> Lead mg/L 0.05 0.00289 <0.0001 <br /> Manganese mg/L 0.05 0.16 <0.01 <br /> Mercury mg/L 0.002 <0.0002 <0.0002 <br /> Molybdenum mg/L 0.21 0.0351 0.0293 <br /> Silver mg/L 0.05 <0.0001 <0.0001 <br /> Thallium mg/L 0.002 <0.0001 <0.0001 <br /> Uranium mg/L 0.03 0.489 1.17 <br /> Zinc mg/L 5 <0.02 <0.02 <br /> Radionuclides <br /> Gross Alpha pCi/L 15 310 510 <br /> Gross Beta pCi/L 110 200 <br /> Radium 226-Dissolved pCi/L 0.32 0.54 <br /> Radium 226-Total pCi/L 0.51 0.52 <br /> Radium 228-Total pCi/L - 0 0 <br /> Radium 226+ Radium 228-Total pCi/L 5 -0.23 0.92 <br /> Notes: <br /> Bold and grey shaded analytical results were detected above the criteria. <br /> MW-00,MW 0,MW-6,MW-12,MW-13, MW-14,MW-16,MW-17,MW-18 and MW-20 were not sampled during the first quarter 2022 due to snow impacted surfaces preventing safe access. <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 /> PAGE 13 of 17 <br />