Best Management Practices (BMP) and Treatment Technologies Clearinghouse
Sources of nitrogen and phosphorus are controlled using best management practices for non-point sources and treatment technologies for point sources. EPA has collected information about BMPs and treatment for use by states in determining how nitrogen and phosphorus can be controlled.
- Biological nutrient removal (PDF) (15 pp, 456K, About PDF)—Information on eight BNR processes from 66 facilities designed to lower Total Nitrogen and Total Phosphorus.
- Advanced Wastewater Treatment to Achieve Low Concentration of Phosphorus—Information on 15 filtration technologies installed at 23 municipalities in the U.S.
- Water Environment Resource Foundation (WERF) Stormwater BMP Database Search—Performance data and percent effectiveness reduction for over seven types of BMPs (over 100 BMPs total)