Water Quality

Interested in water quality info about Cherry Creek and Cherry Creek Reservoir? Here’s the 2020 Annual Report in which you’ll find detailed monitoring from last year.

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Board meetings are held the third Thursday at 9:00am and TAC meetings the first Thursday at 9:00am of each month via Zoom. Access your meeting packets here.

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Interactive Data

Explore interactive data about the water quality throughout the Basin here. Enter the portal now to visualize change and discover relationships you never thought of.

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Cherry Creek Basin

Water Quality Authority

The Authority is tasked with benefiting its inhabitants and land owners by preserving water quality in Cherry Creek and Cherry Creek Reservoir; and preserving waters for recreation, fisheries, water supplies, and other beneficial uses. The Authority Board consists of representatives from Arapahoe and Douglas Counties; Aurora, Castle Pines, Castle Rock, Centennial, Greenwood Village, Lone Tree, and Parker; a representative from special districts that provide water and wastewater treatment in the basin; and seven public representatives appointed by the Governor.