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Denver Water’s Cross-Connection Control Program

On Monday, January 22nd, Denver Water's crews began surveying properties in District 5 as part of their Cross-Connection Control Program. The program protects the public water supply from pollutants and contaminants that could, under certain circumstances, be drawn into the public water supply from private properties. Backflow prevention assemblies attached to a customer’s plumbing system prevent water from being drawn back into the public water supply.

All commercial, industrial, irrigation and fire lines in Denver Water’s service area are required to have an approved backflow prevention assembly installed to prevent the unwanted draw. Multi-family and single-family residences may also require a backflow prevention assembly, but are assessed based on site hazards. All customers with an auxiliary water supply such as a well or pond, are also required to install and maintain backflow prevention assemblies.

Per Colorado Department of Public Health and Environment (CDPHE) regulation 11.39, by 2020, Denver Water must ensure that all backflow prevention assemblies in our service area are inspected. In order to stay in compliance with regulation 11.39, Denver Water must inspect over 27,000 properties in our service area over the next 4 years.

Inquiries about the project can be made to Denver Water’s Cross-Connection Control staff by clicking here or calling at 303-628-5969.