Backflow prevention and cross-connection control (BPCCC)
Governor Polis Signs Backflow Prevention Devices Requirements into Law
On March 28, 2025, Governor Polis signed HB25-1077, a law regarding Backflow Prevention Device Requirements. This new legislation allows certified cross-connection control technicians to inspect, test, and repair backflow prevention devices. The division encourages water suppliers to implement their Backflow and Cross-Connection Control Programs (BPCCC) by using these certified technicians to ensure that the devices effectively protect public health.
If you have any questions or concerns about BPCCC, please contact our Field Services team at cdphe_wqcd_fss_questions@state.co.us. For more information, visit the Aqua Talk blog.
Backflow prevention
- Report any suspected backflow contamination to the CDPHE 24-hour emergency line.
- Frequently asked questions.
- Backflow Prevention Information for Customers.
- Private cistern BPCCC guidance.
- Updated Backflow Guidance Document (pdf version).
- Quick links within guidance document:
- Template and forms:
- Appendix A: Written Backflow Program Template.
- Appendix B: Example Backflow Ordinance.
- Appendix C.1: Cross-Connection Control Extension Application.
- Appendix C.2: Supplier Extension Documentation Template.
- Appendix D: Backflow Annual Report and Tracking Template.
- Appendix E: Backflow Survey and Questionnaires.
- Appendix F: Alternative Survey Compliance Ratio Application.
- Appendix G: Small System Backflow Program Template.
- Appendix H: Small System Cross-Connection Survey.
Colorado drinking water regulations (Regulation 11)
- Regulation 11, Section 11.39 Backflow Prevention and Cross-Connection Control Rule
- Please note that the backflow rule (11.39) was updated with an effective date of October 15, 2023
Policy 7: Backflow Prevention and Cross-Connection Control Rule Policy
- Policy 7 provides additional information on how the backflow rule (11.39) is implemented
Questions about backflow or feedback on errors within documents?
- Contact the CDPHE backflow team at cdphe_wqcd_fss_questions@state.co.us.