Graywater is a portion of the water used in a residential, commercial, or industrial building that may be collected after use, for uses other than toilet use, and put to additional beneficial use. Graywater use is subject to compliance with Colorado’s water rights system, including well permit conditions and water supplier restrictions. Please see DWR’s Administrative Position for Graywater Reuse at the bottom of this page or contact DWR to learn more about the interactions between graywater use and Colorado’s water rights system.
- Colorado Department of Public Health and Environment- Graywater Information Sheet
- Colorado Department of Public Health and Environment- Regulation 86: Graywater Control Regulation