Backflow Prevention and Cross-Connection Control

back flow

Backflow Prevention and Cross-Connection Control Rule Updates to Coincide with Lead and Copper Rulemaking Process


Cross-connections remain the largest culprit in waterborne disease outbreaks in the United States. The Water Quality Control Division (division) is launching a stakeholder engagement process to propose updates to the Backflow Prevention and Cross-Connection Control Rule (BPCCC Rule) in Regulation 11, Section 11.39. The BPCCC Rule was updated in 2014/2015, resulting in the current version of the regulation. Several minor revisions/clarifications have been made since then.

This stakeholder effort is also occurring in parallel with the federal Lead and Copper Rule Revisions (LCRR) stakeholder effort. The goal of the updates that result from this stakeholder effort is to maintain public health protection while improving the implementation of the BPCCC Rule. Recommended changes will be incorporated into the division's Regulation 11 LCRR proposal for the Water Quality Control Commission rulemaking hearing scheduled for August 2023.

During the kickoff stakeholder meeting (Nov. 9), the division reviewed the proposed scope of the issues to be addressed in this rulemaking. The division also requests feedback on the proposed areas of improvement for the rule by Dec. 2, 2022. Register for the next stakeholder meeting scheduled for Dec. 15, 2022, using the button below.


For questions related to Regulation 11 Backflow Prevention and Cross-Connection Control, contact Tyson Ingels by phone at 303-692-3002 or by email at