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Securing Arizona's Water Future
Groundwater Conditions in the Donnelly Wash 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 3.4-3. Figure 3.4-6 shows aquifer flow direction and water-level change between 1990-1991 and 2003-2004. Figure 3.4-7 contains a hydrograph for a selected well shown on Figure 3.4-6. Figure 3.4-8 shows well yields in three yield categories. A description of aquifer data sources and methods as well as well data sources and methods, including water-level changes and well yields are found in Volume 1, Appendix A.  For more information on groundwater in the basin see Donnelly Wash Basin Hydrology.

Major Aquifers

  • Refer to Table 3.4-3 and Figure 3.4-6.
  • The major aquifer in the basin is a narrow strip of basin fill.
  • Flow direction is from the southeast to the northwest.

Well Yields

  • Refer to Table 3.4-3 and Figure 3.4-8.
  • As shown on Figure 3.4-8 well yields in this basin range from less than 100 gallons per minute (gpm) to 1,000 gpm.
  • One source of well yield information, based on four reported wells, indicates that the median well yield in this basin is 62.5 gpm.

Natural Recharge

  • Refer to Table 3.4-3 .
  • The natural recharge estimate for this basin is 3,000 acre-feet per year (AFA). 

Water in Storage

  • Refer to Table 3.4-3 .
  • There are three storage estimates for this basin, ranging from 140,000 acre-feet to 2.0 million acre-feet to a depth of 1,200 feet. 

Water Level

  • Refer to Figure 3.4-6. Water level is shown for a well measured in 2003-2004.
  • The only 2003-2004 recorded water level in the basin is 35 feet northwest of Beehive Tank. A hydrograph corresponding to this well is shown in Figure 3.4-7.

 

Click to view Table 3.4-2

Click for Table 3.4-3 Groundwater Data for the

Donnelly Wash Basin

Click to view Figure 3.4-6

Click for Figure 3.4-6 Donnelly Wash Basin

Groundwater Conditions

Click to view 3.4-7

Click for Figure 3.4-7 Donnelly Wash Basin

Hydrograph Showing Depth to Water in Selected Wells

Click to view Figure 3.4-7

Click for Figure 3.4-8 Donnelly Wash Basin

Well Yields

 

 

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