The Department of Environmental Quality conducted a public hearing on the proposed repeal, renumbering, adoption, and amendment of drinking water quality rules. The Department proposes this rulemaking for the purpose of maintaining primary enforcement authority of the SDWA for public water systems in Arizona. The hearings were held March 1 and 3, 2008. http://www.azsos.gov/public_services/Register/2008/9/proposed.pdf pp. 567-688.