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COLORADO LEGACY LAND <br /> Table 213:Summary of Surface Water Analytical Data <br /> Surface Water Quality Standards <br /> Sample Location <br /> Segment 17b,Ralston Creek <br /> Parameter Units <br /> (CDPHE 2019)1 SW-AWD SW-NWRP SW-BPL SW-FBRG SW-ARH SW-LLHG SW-V <br /> Acute Chronic 05/20/2022 05/23/2022 05/20/2022 05/23/2022 05/23/2022 05/23/2022 05/23, <br /> Physical Properties <br /> TDS-Total Dissolved Solids mg/L - - 211 192 179 194 204 192 20 <br /> TSS-Total Suspended Solids mg/L - - <5 <5 <5 <5 <5 <5 <' <br /> Major Ions <br /> Alkalinity as CaCO3 mg/L - - 59.5 53.4 67.1 58.7 57 58.6 59. <br /> Bicarbonate as CaCC3 mg/L - - 59.5 53.4 67.1 58.7 57 58.6 59, <br /> Calcium-Dissolved mg/L - - 31.8 31 26 30.3 30.7 31.2 31. <br /> Carbonate asCaCO3 mg/L - - <2 <2 <2 <2 <2 <2 <: <br /> Chloride mg/L - 250 59.7 62.6 47.3 63.8 61.3 61.1 59. <br /> Fluoride mg/L - - 0.455 0.35 0.355 0.36 0.37 0.36 0.3 <br /> Hydroxide as CaCO3 mg/L - - <2 <2 <2 <2 <2 <2 <: <br /> Magnesium-Dissolved mg/L - - 8.61 8.67 7.37 8.53 8.72 8.9 8.5 <br /> Potassium-Dissolved mg/L - - 1.82 1.78 1.62 1.74 1.83 1.89 1" <br /> Sodium-Dissolved mg/L - - 18.3 18.2 22.5 17.7 19.4 20.1 20 <br /> Sulfate mg/L - 250 18.15 16.5 15.9 17.9 20.7 21.3 22 <br /> Nutrients <br /> Cyanide-Weak Acid Dissociable mg/L 0.005 - 0.0037 <0.003 0.0033 <0.003 0.0036 0.003 <0.0 <br /> Nitrate+Nitrite as N mg/L NO3=10 NO2=0.05 0.0245 <0.02 <0.02 <0.02 <0.02 0.066 <0.1 <br /> Phosphate-Total mg/L - - <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 0.03 <br /> Phosphorus-Total mg/L - 0.11 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.0 <br /> Metals-Dissolved <br /> Aluminum mg/L - - <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.i <br /> Antimony mg/L - - <0.0004 <0.0004 <0.0004 <0.0004 <0.0004 <0.0004 <0.01 <br /> Arsenic mg/L 0.34 - <0.0002 <0.0002 0.00199 <0.0002 0.00033 0.00036 0.001 <br /> Boron mg/L - 0.75 <0.03 <0.03 0.056 <0.03 <0.03 <0.03 0.0 <br /> Chromium I11=0.11 <br /> Chromium mg/L Chromium IV= <0.02 <0.02 <0.02 <0.02 <0.02 <0.02 <0.1 <br /> Chromium 1V=0.016 0.011 <br /> Copper mg/L 0.0213 0.0136 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.1 <br /> Iron mg/L - 0.3 <0.06 <0.06 <0.06 <0.06 <0.06 <0.06 <0.1 <br /> Lead mg/L L 0.109 0.0043 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.01 <br />