+ Helm Plant, Calfornia
+ Activated sludge: Hinckley, Minnesota
+ Aerators Stop Odors in Chicago + Chia-Ya County, Tiawan
+ Crow Wing County Leachate Treatment + Faculative Lagoons, Jackpot, Nevada + Leachate Treatment System Saves Waste Disposal Costs + Missouri Wastewater Treatment Facilities, St. Clair + P.T. Aspex Paper in Indonesia + Rialto, CA: City Waste Treatment Facility + Walnut Ridge, Arkansas Wastewater Treatment Plant + Warren County Leachate Pond + Whitefish, Montana
