Did you mean: Water Environment Federation. Nutrient Removal Task Force. Water Environment Federation. Water Environment Federation. Biological Nutrient Removal (BNR) Operation in Wastewater Treatment Plants Task Force. Water Environment Federation. Clarifier Design Task Force. Water Environment Federation. Facilities Development Subcommittee. Water Environment Federation. Liaison Subcommittee. Water Environment Federation. Task Force on Instrumentation in Wastewater Treatment Facilities. Water Environment Federation. Task Force on Design of Wastewater and Stormwater Pumping Stations. Water Environment Federation. Wastewater Treatment Process Modeling Task Force. Joint Task Force of the Water Environment Federation and the American Society of Civil Engineers.