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Parameter <br />Max of Shallow <br />Wells + 25% <br />(mg/L) <br />In- Stream Water <br />Quality Standards <br />(mg/L) <br />CO Ground Water <br />Standards for Agricultural <br />Use Classification (mg/L) <br />Proposed <br />Standard <br />(mg/L) <br />Molybdenum, dissolved <br />0.022 <br />Report <br />Nickel, dissolved <br />0.000 <br />0.050241359 <br />0.2 <br />0.050 <br />Nitrate /Nitrite as N <br />2.038 <br />100 <br />100.000 <br />PH <br />10.250 <br />6.0 -9.0 <br />6.5 -8.5 <br />6.0 -9.0* <br />PH measured at <br />26.250 <br />Report <br />Phosphorus, ortho dissolved <br />0.075 <br />Report <br />Potassium, dissolved <br />1.500 <br />Report <br />Residue, Filterable (TDS) @180C <br />212.500 <br />Report <br />Residue, Non - Filterable (TSS) @105C <br />221.250 <br />20 <br />Report" <br />Selenium, dissolved <br />0.001 <br />0.0046 <br />0.02 <br />0.005 <br />Silica, dissolved <br />8.250 <br />Report <br />Silver, dissolved <br />0.000 <br />6.99957E -05 <br />0.000 <br />Sodium, dissolved <br />5.750 <br />Report <br />Sulfate <br />78.125 <br />0.006 <br />78.125 <br />Sum of Anions <br />2.875 <br />Report <br />Sum of Cations <br />3.125 <br />Report <br />TDS (calculated) <br />186.250 <br />Report <br />TDS (ratio - measured /calculated) <br />2.025 <br />Report <br />Thallium, dissolved <br />0.000 <br />Report <br />Total Alkalinity <br />56.250 <br />Report <br />Uranium, dissolved <br />0.000 <br />Report <br />Vanadium, dissolved <br />0.000 <br />0.1 <br />0.100 <br />Zinc, dissolved <br />0.538 <br />0.116771534 <br />2 <br />0.538 <br />Zinc, total <br />0.900 <br />0.75 <br />0.900 <br />*pH standard was conservatively set as the In- Stream Water Quality Standard, not the maximum of the wells. <br />* *TSS standard was set as "Report" because well samples are groundwater. <br />15 <br />