2023 Report

Regulation 72 Responsibilities

The activities under Regulation 72 are assigned to different entities.

CCBWQA

CCBWQA is to construct Pollutant Reduction Facilities, implement a public information and education program, and conduct water quality monitoring. CCBWQA may collaborate on floodplain, riparian corridor, conservation easements, and wetlands projects. CCBWQA must report annually to the Commission and Division on activities required under Regulation 72.

Colorado Water Quality Control Division

The Colorado Water Quality Control Division (Division) must include phosphorus effluent limits in discharge permits issued to wastewater facilities, industrial process wastewater facilities, drinking water treatment facilities, and reclaimed water Notices of Authorization. In addition, special Regulation 72 requirements must be included in all Municipal Separate Storm Sewer System (MS4) permits in the basin. The Division is also directed to collaborate with agricultural and silvicultural owners/operators in pursuing incentives, grants, and cooperative programs to study and control nonpoint sources, as well as collaborate with local governments to encourage connection of existing OWTS and new development to centralized wastewater facilities.

Arapahoe County Public Health

Douglas County Public Health

The Douglas and Arapahoe County Health Departments maintain regulations (DCHD OWTS Regulations, Proposed ACPH OWTS Regulations) regarding Onsite Wastewater Treatment Systems (OWTS) within their respective county limits. Each department reviews designs for new systems and inspects the installation of and repairs to OWTS to ensure they meet the requirements of the state and county regulations. As part of the design review process, these departments also prohibit the construction of new OWTS within the 100-year floodplain of the Cherry Creek Basin per the requirements of Regulation 72.

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