The St. Vrain Sanitation District is a quasi-municipal corporation and political subdivision of the State of Colorado. Established in 1986, the District was created to serve the area near the intersection of I-25 and State Highway 119, commonly referred to as Del Camino, along with surrounding areas.

Wastewater treatment operations began at our current facility in 1987. Since then, the District has grown significantly—from serving a handful of residents and businesses to supporting over 17,000 sewer connections across our service area. We provide sanitary sewer service to the City of Dacono, the towns of Firestone and Frederick, portions of Mead, and unincorporated areas of Weld County within our boundaries. Additionally, the District currently serves many businesses and industries along the I-25 corridor, Highway 52, Highway 119, and parts of Highway 66. Our boundaries span approximately 140 square miles, from the Boulder/Weld County line on the west to the Platte River on the east, and from Weld County Road 40 on the north to Weld County Road 6 on the south.

Thanks to the foresight and leadership of our Board of Directors, we have continued to evolve to meet the region’s growing need for reliable sanitary sewer service. The current Board remains dedicated to delivering quality customer service, maintaining a robust collection system, supporting regional partnerships, and ensuring environmental compliance through our Pretreatment Program.

In May 2023, we completed a two-year, $37 million capital improvement project to upgrade our wastewater treatment plant. The enhanced facility, located on the north side of Weld County Road 26 between Weld County Roads 13 and 15, discharges to St. Vrain Creek and consistently meets the regulatory standards set forth by the National Pollutant Discharge Elimination System (NPDES) permit. The plant is currently rated for 6 million gallons per day (MGD) and 15,200 pounds of biochemical oxygen demand (BOD), operating at approximately 56% of its organic treatment capacity.
The facility was designed with future growth in mind and is scalable to accommodate the increasing demands of our expanding population.