Irrigation Non-Expansion Areas (INAs)
The 1980 Groundwater Management Act established two Irrigation Non-Expansion Areas - Joseph City INA and Douglas INA. The Harquahala INA was created in 1981. The Phoenix AMA manages the Joseph City and Harquahala INAs. INAs have restrictions on increasing their number of irrigated acres.
Conservation Requirements and Management Plans
Management Plans for each active management area reflect the evolution of the Groundwater Code, moving Arizona toward its long-term water management goals. The plans include mandatory conservation programs for all persons withdrawing, distributing or receiving groundwater designed to achieve reductions in withdrawals of groundwater.
A series of five management plans prepared between 1980 and 2025 contain progressively more rigorous management requirements for agricultural, municipal and industrial water users. The five management plans cover the following years:
For more information about conservation requirements, assistance, low water use plants lists, and resources, visit www.azwater.gov/conservation.
Groundwater Users Advisory Council (GUAC)
Each AMA has a five-member advisory council appointed by the Governor as established by the Groundwater Code. Members are appointed for six-year terms to represent groundwater users in their respective AMA. Each Groundwater Users Advisory Council provides advice and recommendations to the AMA Director on groundwater management programs and policies within the AMA.
Please view the Department's Annual Reporting Site for additional information about filing certain Annual Water Withdrawal and Use Reports for rights located within an AMA and Community Water System Annual Use Reports for rights located outside an AMA.