Test and Report backflow devices

An annual inspection is required for all Commercial and Multi-Family Units (non single family home) backflow prevention devices and all irrigation systems are required to have testable backflow prevention devices. You must use a state certified tester using certified test equipment. The testing reports need to be submitted to the Town of Dillon Water Department at water@townofdillon.com. Installations that are not in compliance will be subject to shut-off. The following legislative actions can be referenced for more information:

1974 Federal Safe Drinking Water Act;

1973 Colorado Revised Statutes-Sections 25-2-207, 2-108 and Section 251-114;

Article 12 Colorado Primary Drinking Water Regulations;

Regulation 11.39 Backflow Prevention and Cross-connection Control Guidance (2017) Click here.

CDPHE Backflow Prevention and Cross-connection Control Rule Implementation Policy (DW-007) Click here.

2003 Dillon Municipal Code

If you need any further assistance please contact us at 970.513.3340 or the backflow program operator 970.262.3428 or email