The City of Great Bend Wastewater Treatment Facility is a secondary treatment facility that processes approximately 1.2 million gallons a day of domestic and industrial wastewater to EPA and Kansas Department of Health and Environment specifications. The treatment process allows the recycled wastewater to be returned to the Arkansas River without harm to the aquatic life or the environment.
The Great Bend Treatment Facility was first built in 1954. The facility has had two major upgrades since that time. The first major update was done in 1981, which included screening and pumping equipment to the upper headwork's structures. It also included clarifier remodeling and RBC units to the process. An office building and the Lab were added to the facility.
In 1997 the City began its last major upgrade to the Wastewater Treatment Facility. The improvements were designed to comply with effluent limitations on BOD, ammonia, fecal coliform and dissolved oxygen and to improve system redundancy. The treatment facility was upgraded to an activated sludge process with a 3.64 and 7.28 million gallons per day (MGD) respectively.