Soap and Detergent Manufacturing Effluent Guidelines ...
EPA promulgated the Soap and Detergent Manufacturing Effluent Guidelines and Standards (40 CFR Part 417) in 1974-1975.Part 417 covers direct and indirect dischargers. The Effluent Guidelines and Standards are incorporated into NPDES permits for direct dischargers direct dischargerA point source that discharges pollutants to waters of the United States, such as streams, lakes, or oceans.