The City of Atwater’s existing lift station and alternative site were analyzed to accommodate a short timeline for bidding, equipment delivery, and construction needed to meet a deadline imposed by the Regional Water Quality Control Board (RWQCB).

Ultimately, the existing wastewater treatment plant was replaced by a new tertiary treatment plant. This new treatment facility is located 5.7 miles to the south of the community and provides additional capacity for future growth. The new site location was chosen to provide avoidance from existing and future commercial development adjacent to the site and the new lift station was designed to handle the existing flows along with growth up to a flow of 12 million gallons per day (MGD).

The pump station and odor control facility was completed prior to the RWQCB’s deadline and within the funded budget, and our design strengthens the reliability of the facility by adding a generator, improved electrical service, and odor control facilities.