To: Board of County Commissioners
Through: Jennifer Ludwig, Director, Public Health
Prepared By:
prepared
Steven Chevalier, Environmental Health Manager (Early Childhood and Environmental Protection Programs), Public Health
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presenter
Presenter: Diana Rashash, Sr. Water Quality Specialist; Steven Chevalier, Environmental Health Manager (Early Childhood and Environmental Protection Programs), Public Health
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Subject:
title
2:15 PM *Graywater Use: HB24-1362 and Response by Arapahoe County
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Purpose and Request:
recommended action
The purpose of this study session is to provide an overview of House Bill 24-1362, which shifts graywater regulation to an "opt-out" model effective January 1, 2026. Unless the County adopts a resolution to prohibit certain categories of graywater systems, all allowable uses, both indoor and outdoor types, will be automatically permitted in unincorporated Arapahoe County.
In accordance with HB 24-1362, which encourages collaboration with local boards of health prior to implementation of any local graywater control program, Arapahoe County Public Health (ACPH) sought and received a recommendation from the Board of Health. The Board of Health recommends maintaining current plumbing code provisions that allow indoor graywater systems for toilet and urinal flushing, while prohibiting graywater systems that discharge externally from a structure, such as laundry-to-landscape (L2L) systems.
This briefing seeks direction from the Board of County Commissioners (BOCC) on whether to:
* Take no action and allow all graywater systems starting January 1, 2026;
* Prohibit all graywater systems in unincorporated areas;
* Prohibit only outdoor graywater systems while retaining allowance for indoor graywater reuse.
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Background and Discussion: Graywater is wastewater generated from bathroom sinks, bathtubs, showers, and laundry machines that can be reused for non-potable purposes, such as toilet flushing and subsurface irrigati...
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