AWPCA - ARIZONA WATER AND POLLUTION CONTROL ASSOCIATION
Welcome to the Arizona Water & Pollution Control Association's (AWPCA) web site, ... Boy drinking water The AWPCA is a nonprofit educational organization ...

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

DIPRA
From its inception in 1915, the Ductile Iron pipe Research Association (DIPRA) has provided accurate, reliable engineering information about Cast lron - and now Ductile Iron - pipe to a wide variety of utility and consulting engineers. Today the Association provides numerous services, including the Regional Engineer Program, a variety of brochures and publications, representation on standards-writing committees, and technical research on a variety of topics, including corrosion, corrcsion protection, and the design of Ductile Iron pipe.

WEFTEC
Formed in 1928, the Water Environment Federation (WEF) is a not-for-profit technical and educational organization with 36,000 individual members and 75 affiliated Member Associations representing water quality professionals around the world. WEF and its Member Associations proudly work to achieve our mission of preserving and enhancing the global water environment. Every year, WEF brings you WEFTEC@ - The Water Quality Event.