Water pollution degrades surface waters making them unsafe for drinking, fishing, swimming, and other activities. As authorized by the Clean Water Act, the National Pollutant Discharge Elimination System (NPDES) permit program controls water pollution by regulating point sources that discharge pollutants into waters of the United States. Point sources are discrete conveyances such as pipes or man-made ditches. Individual homes that are connected to a municipal system, use a septic system, or do not have a surface discharge do not need an NPDES permit; however, industrial, municipal, and other facilities must obtain permits if their discharges go directly to surface waters. In most cases, the NPDES permit program is administered by authorized states. Since its introduction in 1972, the NPDES permit program is responsible for significant improvements to our Nation's water quality.
EPA (2013): National Pollutant Discharge Elimination System. Washington: United States Environmental Protection AgencyLibrary

This paper focuses on sanitation and hygiene education at the school level. It may be of relevance to practitioners and to academics who are working directly or indirectly on school sanitation and hygiene education, e.g. managers and trainers involved in school programmes operating at the state, district or community level.
IRC (2003): School Sanitation and Hygiene Education. Thematic Overview Paper. Delft: IRC International Water and Sanitation Centre
This paper gives an overview on arborloo and fossa alterna technologies referring to existing projects in Africa.
SMET, J. ACHIRO, B. MOMMEN, B. TURYAREEBA, P. LeaPPS (2008): An Ecological Approach to Sanitation in Uganda using Arborloo and Fossa Alterna. LeaPPS Case. Uganda: Learning for Practice and Policy on Household and School Sanitation and Hygiene (LeaPPS)
This case study describes safety and O&M planning activities carried out for SBR and MBR systems at a NaWaTech project site in Amanora Park Town Pune and for the NaWaTech project site at COEP Campus Pune involving anaerobic treatment in combination with Vertical Flow Constructed Wetlands.
NICOLICS, S. ; EDATHOOT, A. ; PATWARDHAN, N. ; STARIBACHER, E. ; MASI, F. ; CABALLERO, A. ; PANSE, D. ; LABHASETWAR, P.K. ; MEINHOLD, K. ; LANGERGRABER, G. (2015): Application of the NaWaTech safety and O&M planning approach for resources-oriented wastewater treatment systems in Pune, India. In: Oral presentation at the IWA Water and Development Congress "Water Security for Sustainable Growth":