In 1992, the secondary wastewater treatment plant was constructed at the southwest edge of the city on Coles Road. Treatment technology utilizes sequencing batch reactors (SBRs). The location of the facility requires that household and commercial wastewater be pumped more than a mile through an 8-inch force main from the primary collection facility in Seawall Park through two lift stations.
When the current facility came on line, the primary wastewater treatment facility in Seawall Park was removed, and the old manholes and outfall were abandoned. The old treatment tank was converted into a generator building with an observation deck on top. The City's treatment capacity is now 150,000 gallons per day.
The Treatment Facility can be reached at (360) 221-4274.