The Association of California Water Agencies (ACWA) is the largest coalition of public water agencies in the country. Its nearly 450 public agency members collectively are responsible for 90% of the water delivered to cities, farms and businesses in California.

ACWA has been a leader in California water issues since 1910. Its primary mission is to assist its members in promoting the development, management and reasonable beneficial use of water in an environmentally balanced manner.

In fulfilling its role, ACWA identifies issues of concern to the water community and the public it serves; accumulates and communicates the best available scientific and technical information to the public and policy makers; facilitates consensus building; develops reasonable goals and objectives for water resources management; advocates sound legislation; and fosters cooperation among all interest groups concerned with stewardship of the state's water resources.

ACWA is governed by a 33-member Board of Directors. The membership is organized into 10 geographic regions, which play an active role in setting ACWA's policy agenda. With their grassroots focus, ACWA's regions are a valuable network for communication and a forum for member input on programming.