The District maintains, cleans and repairs 270 miles of pipeline that collect wastewater from homes and businesses in Napa and carry it to the wastewater treatment plant. The collection system also includes three pump stations and a siphon that pulls wastewater through a pipeline under the Napa River.
The District’s headquarters house the Administration, Engineering, and Collections System departments. Headquarters are located next to the Soscol Water Recycling Facility at 1515 Soscol Ferry Road, just south of the Southern Crossing on Highway 29.