The Water Management Assistance Program (WMAP) is intended to provide financial and technical resources to assist water users in the development and implementation of conservation programs, facilitate augmentation and renewable water supply utilization, and obtain information on hydrologic conditions and water availability in an Active Management Area (AMA). 

The WMAP is funded primarily from groundwater withdrawal fees collected from each person or entity withdrawing groundwater in an AMA from a non-exempt well (A.R.S. § 45-611 (C)). Withdrawal fees are authorized by the 1980 Groundwater Code (Code) and are levied based on the acre-foot volume of groundwater withdrawn on an annual basis. The groundwater withdrawal fee rate for augmentation of the water supply, conservation assistance to water users within the AMA and monitoring and assessing water availability within the AMA is set annually by the Director with input from the AMA Groundwater Users Advisory Council (GUAC) and is limited to a maximum of two dollars per acre-foot per year. Programs funded by the WMAP help water users achieve efficient use of water supplies and help the AMA meet its water management goal.