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Securing Arizona's Water Future

Cultural Water Demand in the Lake Havasu Basin

Cultural water demand data including population, number of wells and the average well pumpage and surface water diversions by the municipal, industrial and agricultural sectors are shown in Table 4.5-7.  Effluent generation including facility ownership, location, population served and not served, volume treated, disposal method and treatment level is shown in Table 4.5-8.  Figure 4.5-10 shows the location of demand centers.  A description of cultural water demand data sources and methods is found in Volume 1, Appendix A. More detailed information on cultural water demands is found in Section 4.0.7.  For information on gpcd and annual water demand by individual community water systems in this basin see ADWR's Community Water System Program annual water use reporting summary.

Cultural Water Demands

  • Refer to Table 4.5-7 and Figure 4.5-10.
  • Population in this basin has more than doubled since 1980, increasing from 17,487 in 1980 to 44,591 in 2000.   

  • Groundwater use has increased in this basin since 1971, with an average of 6,000 AFA from 1971-1975 to an average of 16,650 AFA from 2001-2005.  The majority of this demand was for municipal use.

  • The cultural water demand table for this basin reflects the amount of water pumped from wells and diverted from streams for use.  Some of these water uses may be accounted as Colorado River water based on an entitlement system established by Decree by the U.S. Supreme Court in Arizona v. California et.al.  Further information on Colorado River entitlements in this planning area is provided in Section 4.0.6.

  • All surface water diversions, less than 300 AFA from 1991-2005,  are for municipal use at two state parks in the vicinity of Lake Havasu City.

  • The only demand center in this basin is high intensity municipal and industrial located in the vicinity of Lake Havasu City.

  • Industrial groundwater demand is minimal in this basin. Less than 300 AFA were used in 2001-2005 for a small mine or quarry. 

  • As of 2005 there were 99 registered wells with a pumping capacity of less than or equal to 35 gallons per minute and 45 wells with a pumping capacity of more than 35 gallons per minute.

Effluent Generation

  • Refer to Table 4.5-8.
  • There are five wastewater treatment facilities in this basin.
  • Over 30,000 people are served by these facilities.  Only three facilities have information on treatment volumes, Island Plant Wastewater Treatment Plant (WWTP), Mulberry WWTP and Sweetwater. Together these plants generate over 3,360 acre-feet of effluent per year.

Click to view Table 4.5-7

Click to view Table 4.5-7 Cultural Water Demand in the

Lake Havasu Basin

Click to view Table 4.5-8

Click to view Table 4.5-8 Effluent Generation in the

Lake Havasu Basin

Click to view Figure 4.5-10

Click for Figure 4.5-10 Lake Havasu Basin

Cultural Water Demand

 

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