Pollutant Reduction Facilities (PRFs) and Pollution Abatement Projects (PAPs) are structural measures and pollution reducing activities (projects) that include but are not limited to, stream reclamation projects, detention/water quality ponds and retrofits, wetlands, filtration, infiltration, and other technologies with the primary purpose of reducing pollutant concentrations entering the reservoir and protecting the beneficial uses of the reservoir. Like an MS4-required stormwater control measure, a PRF reduces pollutants in stormwater runoff; however, the term PRF is used because a PRF does not discriminate as to the source of the stormwater. PRFs remove pollutants from all upstream stormwater, whether regulated by an MS4 or not. In-channel PRFs effectively treat runoff from recent as well as past development. CCBWQA uses the term PRFs to describe CIP projects.

CIP Identification and Prioritization

Given the complexity and long-term nature of phosphorus management, it is essential to evaluate and prioritize projects using a structured, data-driven process. The CIP Project Prioritization Framework, which was recently updated and approved by the CCBWQA in 2025, provides a transparent method for identifying the most effective, sustainable, and partner-supported actions. By integrating the Technical Advisory Committee (TAC), Board, and partner input, along with adaptive management principles, the prioritization process ensures that resources are directed toward projects with the highest potential to improve water quality and beneficial uses of Cherry Creek and the reservoir while supporting long-term ecological resilience and community benefits. Each year CCBWQA updates its 10-year CIP Plan to identify projects to fund in the coming years but beginning in 2026, projects included on the CIP must go through the Project Prioritization Process.

Eligible Pollution Abatement Projects projects may include both structural and non-structural projects including:

• Structural Projects
• Streambank and shoreline restoration
• SCMs and retrofits of SCMs (e.g., extended detention basins (EDB))
• In-reservoir projects (e.g., Reservoir Destratification System)
• Other PRFs that improve water quality and beneficial uses

Non-Structural Projects:

• Education and outreach 
• Land acquisition and preservation easements 
• Source control projects/studies 
• In-reservoir treatments 
• Other special studies (demonstration/pilot projects)

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CCBWQA also works with Cherry Creek State Park to maintain PRFs in the park. As part of this effort, CCBWQA staff conduct an annual inspection of PRFs to identify routine maintenance requirements (e.g., mowing, weed control), as well as repairs and anticipated rehabilitation needs.

Useful Links

• link 2025 Annual Inspection of PRFs at Cherry Creek State Park