Arizona

Source Number: 2.1.4

Source Description
Information provided by James Dubois, Director, Arizona Department of Water Resources. Information is from ADWR's website at: http://www.water.az.gov/recharge/PermittedFacilities.htm

Key Words
aquifer storage recovery; vadose zone injection wells; compliance zone; microbiota; Arizona; Central Arizona Project; CAP

Executive Summary
Arizona measures compliance with drinking water standards at the edge of a Compliance Zone around an ASR well, not at the wellhead, prior to recharge. Exact wording of the Arizona regulations may be obtained through the following URL:
http://www.adeq.state.az.us/environ/water/permits/app.html

Projects with vadose zone injection wells (drywells) using Central Arizona Project (CAP) water or other surface water without disinfection are as follows:

  • City of Mesa Red Mountain (CAP water overflows from lake into drywells)

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  • Del Webb Sun City Grand (CAP water mixed with runoff from a golf course directed to infiltration trenches)

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  • City of Scottsdale Westworld (filtered CAP water injected into vadose zone wells)

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  • Vicksburg Farms McMullen Valley Water Conservation and Drainage Dist. (injection through agricultural wells)

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  • Vidler Water Company (recharge basins augmented with vadose zone wells to increase recharge rate)

Projects with vadose zone injection wells using effluent that is disinfected are as follows:

  • Town of Gilbert at Warner & McQueen Roads (pilot project with a well - not operating currently)

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  • City of Chandler and Ocotillo Management Group (overflow from lakes enters drywells)

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  • Chandler Regional Park

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  • Pima Utilities Sun Lakes (overflow from lakes enters drywells)

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  • Tempe Ken McDonald Golf Course (pilot project with a well - not currently operating)

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  • Fountain Hills Sanitary District

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  • Scottsdale Water Campus (both disinfected effluent and disinfected CAP are injected through vadose wells)

Projects injecting disinfected CAP water are as follows:

  • Scottsdale Water Campus

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  • Scottsdale Gainey Ranch (pilot for eventual effluent recharge)


Graphics and Tables
Graphics and tables will be provided for one representative site recharging surface water without disinfection.

Contact Information
To be provided.



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