Here are some specific examples of the high quality of water in Colorado:
* The Environmental Protection Agency (EPA) has designated 15 of Colorado's rivers and streams as "Outstanding National Resource Waters." These waters are considered to be some of the cleanest and most pristine in the country.
* The Colorado Department of Public Health and Environment (CDPHE) regularly tests the state's water for contaminants, and has found that the vast majority of samples meet or exceed federal and state standards.
* A 2017 study by the National Resources Defense Council (NRDC) found that Colorado ranked 12th in the nation for tap water quality.
Overall, the water in Colorado is of excellent quality and is safe to drink, swim in, and fish in.