About the portal

This portal provides access to water quality data throughout the Cherry Creek Basin, some of which can be explored through a variety of interactive graphs. While you do not need to log-in to explore the data, explorers who want to download data need to set-up an account: click on Sign Up in the menu bar for details. The data on this site may not have received quality assurance review and its accuracy cannot be guaranteed. Further, the data is subject to change or modification at any time by the Cherry Creek Basin Water Quality Authority. If you have questions, please contact the CCBQWA manager: manager@ccbwqa.org.

Ways to explore the basin

Visualize Data
Compare changes over time
Discover relationships
Download Data

Explore the Data

Easily explore water quality data throughout the Basin using the Data Explorer page. Visualize individual sampling results through graphs and tables to learn more about water quality throughout the basin.


Visualize Change

Use the Year Comparison grapher tool to select a location and parameter and explore how water quality has exchanged over the years. Easily compare year to changes in water quality throughout the basin.


Discover Relationships

Curious how two parameters might be related to one another? Use the Correlation Explorer to plot any two parameters against each other for a selected location and view the results in the graph.


2019 Water Quality Data

Investigate trends and relationships in flow, Chlorophyll α, and Nutrients data throughout the Cherry Creek Basin watershed.