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 (coming soon).
- Table of Contents (coming soon).
- Backflow Annual Report Guidance (coming soon).
- Template and forms:
- Appendix A: Written Backflow Program Template.
- Appendix B: Example Backflow Ordinance.
- Appendix C.1: Cross-Connection Control Extension Application.
- 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?
Contact the CDPHE backflow team at cdphe_wqcd_fss_questions@state.co.us.