Staff warns: Centennial's fragmented water districts make graywater administration complex

Jul 21, 2026

Staff told the council that Centennial's service by roughly 12 separate water and sanitation districts would require significant coordination if graywater were allowed, and that local plumbing codes, CDPHE and district practices would all need alignment before full implementation.

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Planning manager Mr. Grama told council that Centennial is not itself a water and sanitation provider and that local graywater policy would require coordination with many separate district providers. "Because of this, in the city of Centennial circumstance, it's not just collaborating with 1 water and sanitation district ... it would be 12," Grama said, and added staff would need to develop tracking and inspection processes if the city opted in to allowing graywater.

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