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"Graywater" means that portion of wastewater that, before being treated or combined with other wastewater, is collected from fixtures within residential, commercial, or industrial buildings or institutional facilities. Sources of graywater may include discharges from bathroom and laundry room sinks, bathtubs, showers, laundry machines, and other sources authorized by rule. Graywater does not include the wastewater from toilets, urinals, kitchen sinks, dishwashers, or nonlaundry utility sinks.
On May 15, 2013, Governor Hickenlooper signed legislation, HB13-1044, regarding authorization of the use of graywater in Colorado.  As a result of the legislation, the Water Quality Control Division (Division) is beginning to develop a graywater control regulation for consideration by the Water Quality Control Commission.   
If you are interested in participating as a stakeholder in the graywater regulation process, please sign up at: http://fs8.formsite.com/cohealth/form375/index.html.  Please include your contact information as requested (name, phone, email, organizational affiliation, title, address).  Additional notifications will be distributed to those who sign up for the stakeholder group at the above website.
Stakeholder Meeting Presentations: