The Niwot Sanitation District was formed in 1967. It is a local government entity under Title 32 Colorado Special District guidelines. It is governed by a five-member Board of Directors. The District Manager reports to the board of directors and handles the daily operation of the District.
The District handles wastewater collection and treatment. It also ensures that operations follow state and regional rules. The District's service area is about seven square miles. It has gravity-fed wastewater lines with over 900 manholes.