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---.1104,--N <br /> COLORADO LEGACY LAND <br /> • :LE 2B: SUM MA'Y OF GROUND WATER ANALYTICAL DA A <br /> Domestic Water Supply Sample Location <br /> - <br /> Parameter Units Drinking Water Standards MW-0 MW-00 MW-18 Raw Feed Sump Composite <br /> (CDPHE 2018) 10/16/2019 10/16/2019 10/23/2019 10/17/2019 10/17/2019 <br /> Lead mg/L 0.05 <0.0001 0.0002 0.0012 <0.0002 0.0002 <br /> Manganese mg/L 0.05 <0.01 <0.01 0.15 0.81 0.05 <br /> Mercury mg/L 0.002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <br /> Molybdenum mg/L 0.21 <0.02 <0.02 0.06 1.33 0.06 <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 0.489 0.0031 0.457 16.0 2.59 <br /> Zinc mg/L 5.0 <0.01 <0.01 0.05 <0.02 <0.01 <br /> Radionuclides <br /> Gross Alpha pCi/L 15 230 2.2 250 15,000 1,800 <br /> Gross Beta pCi/L - 120 6.1 140 6600 800 <br /> Radium 226- Dissolved pCi/L - 13 0.25 3 150 9.2 <br /> Radium 226-Total pCi/L - 0.5 0.31 3.9 160 15 <br /> Radium 228-Total pCi/L - 0.16 0.27 3.4 0.7 -0.061 <br /> Radium 226+ Radium 228- <br /> Total pCi/L 5.0 0.5 0.3 7.3 160 15.0 <br /> Notes: <br /> 'Negative values are shown as less than lower limit of detection <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 />