Groundwater Conditions in the Upper San Pedro Basin
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.
Arizona Department of Water Resources. 2015e. Groundwater Conditions in the Upper San Pedro Basin. Online data retrieved at http://www.azwater.gov/.... Accessed March 12, 2015.