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 4.8-5.  Figure 4.8-6 shows aquifer flow direction and water-level change between 1990-1991 and 2003-2004.  Figure 4.8-7 contains hydrographs for selected wells shown on Figure 4.8-6.  Figure 4.8-8 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. 

Major Aquifers

• Refer to Table 4.8-5 and Figure 4.8-6.
• The major aquifers in this basin are basin fill and sedimentary rock, R (Redwall) Aquifer.
• Flow direction is generally from south to north in this basin.

Well Yields

• Refer to Table 4.8-5 and Figure 4.8-8.
• As shown on Figure 4.8-8 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 seven reported wells, indicates that the median well yield in this basin is 250 gpm.

Water in Storage

• Refer to Table 4.8-5.
• Storage estimates for this basin range from 1.0 million acre-feet (maf) in the Truxton Valley alone to more than 4.0 maf for the entire basin to a depth of 1,200 feet.

Water Level

• Refer to Figure 4.8-6. Water level is shown for wells measured in 2003-2004.

• The Department annually measures three index wells in this basin.  Hydrographs for two index wells (C and D) and two other wells are shown in Figure 4.8-7.  More recent hydrographs of the index wells may be available through the Department's GWSI webpage.

• These data show the deepest recorded water level in the basin and planning area is 1,341 feet near the Yavapai/Coconino County boundary.  The shallowest recorded water level is 60 feet east of Truxton.

Click for Table 4.8-5 Groundwater Data for the

Peach Springs Basin

Click for Figure 4.8-6 Peach Springs Basin

Groundwater Conditions

Click for Figure 4.8-7 Peach Springs Basin

Hydrographs Showing Depth to Water in Selected Wells

Click for Figure 4.8-8 Peach Springs Basin

Well Yields

Arizona Water Atlas Home

Upper Colorado River Planning Area Home