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7 <br />7. Water Quality Parameters Summary <br />Table 1: Heavy Metals (mg/L) <br /> <br />Parameter USGS <br />06693800 CDPHE 21COL001 DRMS L-5 Colorado <br />Standards (mg/L) <br />% of <br />Standard <br />303(d) <br />Listing <br />Zinc (Zn) No data <br />available <br />0.012-0.049 (6 <br />measurements) <br />0.050-0.117 (8 <br />measurements) <br />0.120 (chronic <br />aquatic) 8-98% Impaired <br />Cadmium (Cd) No data <br />available <br /><0.001 MDL (6 <br />measurements) <br />0.0002-0.0003 (8 <br />measurements) <br />0.00025 (chronic <br />aquatic) 80-120% Impaired <br />Lead (Pb) No data <br />available <br />0.001-0.010 (6 <br />measurements) <br />0.00015-0.0018 <br />(8 <br />measurements) <br />0.0025 (chronic <br />aquatic) 6-400% Impaired <br />Iron (Fe) No data <br />available <br />0.035-0.310 (6 <br />measurements) <br />0.089-0.716 (8 <br />measurements) <br />0.3000 (secondary <br />standard) 12-239% - <br />Copper (Cu) No data <br />available <br /><0.010 MDL (6 <br />measurements) <br /><0.005-0.050 (8 <br />measurements) <br />0.009 (chronic <br />aquatic) ≤56-556% - <br />Manganese (Mn) No data <br />available <br />0.005-0.023 (6 <br />measurements) <br />Data not <br />available <br />0.050 (secondary <br />standard) 10-46% -