Pinal AMA Home Page
"Conserving and sustaining all water resources...It's our future."
Evaluation of the Agriculture BMP Program Final Report - click here
The mission of the Pinal Active Management Area is to ensure a reliable and sustainable water supply will efficiently meet current and future water uses within the Pinal AMA while protecting the environment and general economy.
Pinal AMA Goal
The Pinal AMA (map) covers approximately 4,000 square miles in central Arizona. The topography consists of gently sloping alluvial basins separated by north to northwest trending fault-block mountains. Land surface elevations range from 1,000 to 4,000 feet above sea level. The AMA consists of five sub basins with unique groundwater underflow, storage, and surface water characteristics. These subbasins are: Maricopa-Stanfield, Eloy, Vekol Valley, Santa Rosa Valley, and Aguirre Valley. The boundaries of the subbasins follow the highest elevation of topographic divides separating areas from where surface water runoff emanates. The boundaries that separate the Eloy and Maricopa-Stanfield subbasins also signify the presence of groundwater divides that define the extent of groundwater underflow. Migration of groundwater underflow between these subbasins is limited or non-existent.
Contact the Pinal AMA
Phoenix Arizona 85012
AMA Water Budget (Supply and Demand)
The Pinal AMA’s supply and demand estimates, also known as a “ water budget”, are designed to volumetrically account for annual supply and demand use figures. The most recent water budget is for 2006 and is currently being updated. Click here for a Summary of the Pinal AMA Water Demand and Supply Assessment: 1985 - 2025.
AMA Conservation Requirements
It should be noted that the modifications to the TMP, which were adopted in May 2003, have resulted in a number of changes to the conservation programs for all three water use sectors. This is especially true for agricultural water users, as an entirely new Chapter 4 has replaced Chapter 4 in the TMP. Major changes were made to the municipal conservation program in modifications to the TMP that were adopted in May 2008. For further information concerning specific conservation requirements by program, agricultural, municipal, or industrial.
Pinal AMA Major Water Management Issues
Management Plan Development and Modification
Third Management Plan – Second Modification
On January 9, 2008, the Director issued orders promulgating proposed modifications to the Third Management Plans for the purpose of adding a modified Non-Per Capita Conservation Program. Public hearings on the proposed modifications were held in Phoenix, Casa Grande, Prescott, Nogales and Tucson during the first week of March, 2008. On April 1, 2008, the Director issued a summary of the hearings and findings with respect to the matters considered during the hearings (“Summary of Hearings and Findings”). In the Summary of Hearings and Findings, the Director indicated that two changes would be made to the proposed modifications in response to comments received during the public hearings. On April 1, 2008, the Director issued orders adopting the proposed modifications with the changes described in the Summary of Hearings and Findings.
Pinal AMA Groundwater Users Advisory Council
The 1980 Groundwater Code established a Groundwater Advisory Council (GUAC) in each Active Management Area (AMA). The group consists of five members. Members of the GUAC are appointed by the governor to represent the users of groundwater in the AMA, and on the basis of their knowledge of interest and experience with problems relating to development, use and conservation of water.
The term of office of each member is six years. The terms are staggered, expiring in January of each even numbered year. Every other even numbered year, the members of the GUAC elect a chairman and vice chairman. Members of the GUAC serve without compensation.
Groundwater Rights and Permits Information
Pinal AMA Links