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December 23, 1919 Page ll <br />• Control Commission: Regulation No. 41-Basic Standards for Ground <br />No. 31-Basic Standards and Methodologies for Surface Water. <br />Table 2. Water Quality Parameters List i (WQI) <br />Analytical Laboratory Parameters Water and Regulation <br /> Instrument <br /> Minimum <br />Constituent Units Detection Standards <br /> Limit (IMDL) <br />pH standard units 0.1 6.5-8.5 DW and AG <br />Conductivity, 25°C mmhos/cm 1 <br />Total Dissolved Solids mg/L 10 <br />Total Alkalinity mg/L 2 <br />Anion and Cation Balance No units - <br />Dissolved Sodium mg/L 0.02 <br />Bicarbonate as alkalinity mg/L - <br />Carbonate as alkalinity mg/L - <br />Dissolved Fluoride mg/L 0.00001 2.0 AG, 4.0 HH <br />Dissolved Chloride mg/L 5.0 250 DW <br />Dissolved Boron mg/L 0.001 0.75 AG <br />Dissolved Magnesium mg/L 0.2 <br />Dissolved Calcium mg/L 0.02 <br />Dissolved Silica mg/L 0.2 <br />Dissolved Potassium mg/L 0.3 <br />Dissolved Sulfate mg/L 0.0005 250 DW <br />Dissolved Strontium mg/L 0.01 <br />Field Parameters <br />pH standard units 0.1 6.5-8.5 DW and AG <br />Conductivity, 25°C mmhos/cm 1 <br />_Temperature °C - <br />/MDL = Instrument Mrntmum Detection Limit <br />D{V = Saje Drinking Water Standard <br />AG = Agriru!lttral Standard <br />HH = Haman Health Standard <br />Standards from Colorado Department of Public Hea/!h and Environment, Water Quality Control Crunmission, <br />Regulation No. 9/, "The Basic Standards jor Gronndwa[er. " <br />r 1 <br />l`I <br />Agapito Associates, Inc. <br />