Water Quality in Lakes and Streams

Results from recreational sampling of streams and lakes are posted on our water quality dashboard. Results from stream sampling are also summarized annually in interactive story maps while lake monitoring results are summarized in one-page briefs that are updated biannually. Lake summaries are intended to provide a quick look at lake background / history, developing issues, pressing problems, and management recommendations. 

The most recent versions of these reports are available by clicking on the links below. The data are also available from the city's Open Data Catalog. Contact the Environmental Quality Division by calling 311 to get copies of older data and reports. 

Water Quality Reports and Data

DDPHE's Environmental Quality Division monitors the streams and lakes within the City and County of Denver's boundaries. Streams are monitored year-round while lakes are typically sampled once per year during the summer. Results from stream monitoring are summarized in a story map. Lake monitoring results are summarized in one-page briefs that are generally updated biannually. Lake summaries are intended to provide a quick look at lake background/history, developing issues, pressing problems and management recommendations. 

The most recent versions of these reports are available by clicking on the links below. Additionally, data are available from the City's Open Data Catalog. Contact the Environmental Quality Division by calling 311 for lakes data or to get copies of older reports.

Streams

Water Quality Story Maps:

Lake Reports