Arizona Department of Water Resources

Slides for webinar presentation on the Phoenix AMA Groundwater Model, it's calibration and 100-year AWS projection.

This technical memorandum summarizes the results from a 100-year (2022-2121) model projection for the Phoenix AMA.

The Arizona Department of Water Resources (ADWR) has developed and calibrated a groundwater flow model of the Phoenix Active Management Area (AMA). 

This plan contains the conservation programs that are intended to guide the Phoenix AMA to meet it management goal - and these conservation programs are to be designed to achieve reductions in groundwater withdrawals.

The management plans serve as a tool to assist the Arizona Department of Water Resources in achieving the groundwater goals of each of the state's five Active Management Areas.

This report documents ADWR's 2019 Pinal Model, which includes annual updates, structural and other modifications to the 2014 Pinal groundwater flow model, and results from a 100-year Assured Water Supply (AWS) projection.

Major aquifers, well yields, estimated natural recharge, number of index wells and date of last water-level sweep are shown in Table 8.1-6. Figure 8.1-6 shows aquifer flow direction and water-level change between 1991-1992 and 2002- 2003 for the entire Phoenix AMA.

Major aquifers, well yields, estimated natural recharge, estimated water in storage, number of index wells and date of last water-level sweep are shown in Table 2.1-6. Figure 2.1-7 shows aquifer boundaries, aquifer flow direction and water-level change between 1990-1991 and 2003-2004.

Major aquifers, well yields, estimated natural recharge, estimated water in storage, number of index wells and date of last water-level sweep are shown in Table 3.13-5. Figure 3.13-7 shows aquifer flow direction and water-level change between 1990-1991 and 2003-2004.