The Association of Metropolitan Water Agencies (AMWA) is an organization of the largest publicly owned drinking water systems in the United States. AMWA`s membership serves more than 130 million Americans with drinking water from Alaska to Puerto Rico. AMWA is a voice on critical national issues involving legislation, regulation and security, and provides resources for utility management and leadership. AMWA is the nation`s only policy-making organization solely for metropolitan drinking water suppliers. The association was formed in 1981 by a group of general managers of metropolitan water systems who wanted to ensure that the issues of large publicly owned water suppliers would be represented in Washington, D.C. Member.