About Us


The Upper Thompson Sanitation District was formed in 1971 to provide wastewater treatment services to the areas surrounding the Town of Estes Park and to improve the water quality of the Big Thompson River.

The plant and collection lines were built with Federal, State, and local funding at a cost of approximately $5.5M. The plant was brought on-line in 1976, providing service to areas of the Estes Valley which were previously without adequate wastewater treatment. Since that time, we have effectively managed the wastewater treatment, through three major floods and a fire evacuation.



The District is staffed with 17 permanent employees: five administrative personnel, five in the collection department, and seven operators at the treatment plant. A State of Colorado Wastewater Certification is required for all collection and plant personnel.

The District policies and operations are overseen by a Board of Directors elected by the voters within the District.

The Upper Thompson Sanitation District treatment facility is a tertiary (or three-stage), advanced treatment process. When the plant was constructed, it contained several innovative technologies, making it one of the most advanced treatment facilities at the time.

This facility was built to treat a flow of 1.5 million gallons per day (MGD), and a peak hydraulic flow of 3.75 MGD. Over 99% of the solids and pollutants in the wastewater are removed. In the fall of 2000, a new secondary clarifier was constructed, adding operational flexibility and increased plant capacity to 2.0 MGD.

Protecting our most precious resource
Testing and reclaiming the water of the Estes Valley
Managing the systems of the treatment facility
Customer Service providing oversight and strategic planning of the district's assets.