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Water Quality

Sloan's Lake Denver

Denver Department of Public Health & Environment has been monitoring the quality of water in Denver’s lakes and streams for more than 45 years. Over that time, the program has grown to include many other important aspects of water quality. You can learn more about what we do by exploring the topics below.

Water Quality in Lakes and Streams

Denver’s goal is to have fishable and swimmable waters in all our lakes and streams. Denver’s Departments of Public Health & Environment (DDPHE), the Department of Transportation and Infrastructure (DOTI), and Denver Parks and Recreation are all working hard to ensure the city meets that goal.

Recreating in Denvers's Lakes and Streams

Denver’s lakes and streams receive runoff from city streets, yards, parks, and discharges from industry and wastewater treatment plants. Sometimes pollution in the runoff and discharges, which includes bacteria such as E. coli, can make residents sick.

Protecting Denver's Water Quality

Other Water Quality Information

More information about what Denver is doing to ensure safe, clean waterways including information about trash and litter, dead or dying birds, suds in streams, and more.

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