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Water Resources Portfolio
Avondale's Sustainable Water Supplies
City of Avondale currently has adequate water available for customers. Avondale continues to plan and purchase additional surface water supplies for future use and to enhance its well water system so that needs are met for the future and when and if a drought affects the City.

The city's three main sources of water available for the future are groundwater, surface and recharge water. The daily water supply delivered to its citizens is 100% recovered water.

Where does the city get its water supply?
Avondale has planned for decades to meet the challenge of providing customers a safe, high-quality, reliable supply of water, even during times of drought. Periods of drought are common in our desert community and may last from three to thirty years. Through, planning and wise resource management, the City has created a diverse water resource portfolio that is made up of surface, recharge, reclaimed and groundwater.   

Surface Waters 
Salt River Project Water (SRP) -- This water is collected from the Salt and Verde River watersheds, and diverted into SRP canals at the Granite Reef Dam, in Mesa. The City's allotment of SRP water depends on the acres of SRP lands that are no longer in agriculture. SRP water is recharged at our recharge basins located at Agua Fria and McDowell Road. Prior to recharge, the SRP waters are treated in the wetlands.

Central Arizona Project Water (CAP) -- Beginning its journey from Lake Havasu, Colorado River water is transported via the CAP canal water system to Lake Pleasant, just northwest of Phoenix. The City has a subcontract to purchase 5,219 acre feet of CAP water annually.

Recharge -  Avondale Wetlands, New River-Agua Fria River Underground Storage Project (NAUSP), Hieroglyphics and Agua Fria Recharge sites are a few of the sites the city recharges its allocation of Salt River and Central Arizona Project water.     

These recharge sites will boost the availability of future water supplies for Valley homes and businesses. 
Avondale currently recharges 17,000 acre feet of water per year.  

Water Reclamation (in the near future)
One of the wisest uses of water is to give it a second chance to be used again after it is flushed down the drain at our homes and businesses. This process is called water reclamation. This treatment results in a water supply that is clean, odorless, and safe for groundwater recharge, irrigation of parks and landscaping. At build-out, the city will have over 3.26 billion gallons (10,000 acre-feet) of reclaimed water per year. Reclaimed water benefits you and your neighbors, completes the water cycle, and provides a renewable and sustainable water resource for future generations.
Currently , Avondale recharges 100 percent of its reclaimed water.  

Groundwater (City wells) 
The city delivers drinking water to its customers from its production wells located throughout the city service area.  
What is the difference between groundwater and surface water?
Ground water is one of Earth’s most valuable natural resources. The water stored in the pores, cracks, and openings of subsurface rock material is ground water. Wells dug by hand or machines, well pump, have been used throughout history to retrieve water from the ground. Wells usually have a depth of 500 to 1000 feet beneath the ground. The underground formation that is capable of storing and transmitting water is called the aquifer. The top of an unconfined aquifer; indicates the level below which soil and rock are saturated with water. As water travels through the aquifer it is naturally filtered as it passes through the dirt, sand, gravel and rock that lay above the water table and aquifer.

Groundwater is known to be 99.9% microbial free, however, most water providers disinfect this water as a precaution prior to delivery to its customers. On the other hand, surface water comes from rivers, lakes, and reservoirs. In Central Arizona, surface water sources include the Colorado River and Salt River Project’s reservoirs such as Roosevelt Lake and Saguaro Lake. These sources are constantly exposed to contamination from animals, plants, people, and businesses. For this reason all surface water must be treated to remove any impurities before it can be placed in a public water distribution system. No exceptions. In Avondale all surface water is recharged into aquifers.

Capital improvement projects throughout the City, groundwater well production and acquisitions, have enabled Avondale customers to weather dry times. It is important to remember, though, as our desert environment regularly reminds us, that we live in a place where awareness of water should be a part of our daily lives.

For more information on water resource policy and legislation

And visit  
Arizona Municipal Water Users Association