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International organization for professionals skilled in the design, specification and inspection of plumbing systems.

News, publications, standards and certification information, plus details of upcoming meetings.

International nonprofit scientific and educational society dedicated to the improvement of drinking water quality and supply.

Homepage department sanitary engineering. Department of Sanitary Engineering. Research and education programs on the 'urban water cycle', namely, including drinking water supply, waste water collection and urban drainage, and waste water treatment.

Department of Sanitary and Environmental Engineering. Goal is to contribute to the development of adequate water supply and waste management services world wide by improving the capacities of individuals and organizations active in and for the sector.

Resource for professionals in the water industry- Information on water treatment, sludge dewatering, pipe rehabilitation, flowmeters, wastewater management, water clarification and more. Daily news and product updates for professionals in the wastewater industry- Information on manufacturing, technology, equipment, supplies, and discussion forums, online chat, newsletter and software.