PHOENIX- Beginning the week of December 18th, 2023, and continuing through February 2024, Arizona Department of Water Resources (ADWR) field services staff will make an extensive effort to measure water levels in wells in the Pinal Active Management Area (AMA). This survey of wells – or basin “sweep,” as it is known – was last conducted during the Winter of 2018.

The data collected will be analyzed and used to obtain a comprehensive overview of the groundwater conditions and used to support scientific and water management planning efforts. Among others, data uses will include:

• Analysis of water-level trends
• Groundwater modeling
• Water-level change maps
• Hydrologic reports
• Water resource planning and management

The Pinal AMA is located in the central part of the State of Arizona. The Pinal AMA 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. The AMA consists of five sub-basins with unique groundwater underflow, storage, and surface water characteristics. These sub-basins are Maricopa-Stanfield, Eloy, Vekol Valley, Santa Rosa Valley, and Aguirre Valley.

For more information regarding this matter, please contact Public Information Officer Shauna Evans at smevans@azwater.gov or (602) 771-8079. Details about the nature of basin sweeps and groundwater modeling can be found here. If you would like to volunteer your well for participation in this groundwater survey, please contact the Hydrology Division at (602) 771-8535.

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