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Securing Arizona's Water Future

Groundwater Conditions in the Lake Havasu 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 4.5-5.  Figure 4.5-6 shows aquifer flow direction and water-level change between 1990-1991 and 2003-2004.  Figure 4.5-7 contains hydrographs for selected wells shown on Figure 4.5-6.  Figure 4.5-8 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 4.5-5 and Figure 4.5-6.
  • The major aquifer in this basin is basin fill.
  • Flow direction is from north to south in this basin.

Well Yields

  • Refer to Table 4.5-5 and Figure 4.5-8.
  • As shown on Figure 4.5-8 well yields in this basin range from 100 gallons per minute (gpm) to 2,000 gpm.
  • One source of well yield information, based on 17 reported wells, indicates that the median well yield in this basin is 1,500 gpm.

Natural Recharge

  • Refer to Table 4.5-5.
  • The estimate of natural recharge for this basin is 35,000 acre-feet per year (AFA).

Water in Storage

  • Refer to Table 4.5-5.
  • Storage estimates for this basin range from 1.0 million acre-feet (maf) to 2.0 maf to a depth of 1,200 feet. 

Water Level

  • Refer to Figure 4.5-6.  The water level is shown for one well measured in 2003-2004 with a depth of 74 feet.
  • The Department annually measures one index well in this basin.  A hydrograph of this well is shown in Figure 4.5-7. A more recent hydrograph of the index well may be available through the Department's GWSI webpage.

Click to view Table 4.5-5

Click to view Table 4.5-5 Groundwater Data for the Lake Havasu Basin

Click to view Figure 4.5-6

Click to view Figure 4.5-6 Lake Havasu Basin Groundwater Conditions

Click to view Figure 4.5-7

Click for Figure 4.5-7 Lake Havasu Basin Hydrographs Showing Depth to Water

in Selected Wells

Click to view Figure 4.5-8

Click for Figure 4.5-8 Lake Havasu Basin

Well Yields

 

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