A stabilization pond is a large shallow excavation that receives sewage from a sewage system, detains the sewage so that biological processes can destroy most of the disease-causing organisms, and discharges the effluent as treated sewage. Correct operation and maintenance is important because a neglected stabilization pond will produce foul odors, become a breeding place for flies and mosquitoes, and require costly repairs. This technical note describes how to operate and maintain a stabilization pond.