Arizona has 46 groundwater basins and 27 sub-basins.
To more easily determine in which basin and sub-basin a proposed well may be located, ADWR recommends referring to the Statewide Map of Groundwater Basins and Sub-Basins showing all the basins and sub-basins of the state.
Individual AMA boundary maps are available here to download.
ASU Groundwater Dashboard. HERE.
groundwater basins
A groundwater basin is an aquifer or stack of aquifers with defined boundaries along the sides and bottom, making it a distinct underground body of water. Groundwater basins may have water inflows and outflows.
Agua Fria
Aguirre Valley
Alamo Reserve
Allen Flat
Aravaipa Canyon
Avra Valley
Big Chino
Black River
Bonita Creek
Burro Creek
Butler Valley
Camp Grant
Carefree
Childs Valley
Cibla Valley
Cienega Creek
Clara Peak
Coconino Pl
Colorado River
Dendora Valley
Detrital Valley
Donnelly Wa
Doublas
Dripping Spring
Duncan Valley
East Salt River
Eloy
Fort Rock
Fountain Hills
Gila Bend
Gila Valley
Grand wash
Harquahala
Hassayampa
Hualapai Valley
Joseph City
Kanab Plateau
La Posa Plains
Lake Havasu
Lake Mohave
Lake Pleasant
Little Chino
Little Colorado River Plateau
Mammoth
Maricopa-Sta
McMullen Valley
Meadview
Morenci
Paria
Peach Springs
Rainbow Valley
Ranegras Pl
Sacramento
Salt River Ca
Salt River Lake
San Bernardino
San Carlos V
San Rafael
San Simon Va
San Simon Wash
Santa Cruz A
Santa Maria
Santa Rosa V
Shivwits Plateau
Sierra Visa
Skull Valley
Tiger Wash
Tonto Creek
Upper Agua Fria
Upper Hassayampa
Upper Santa
Vekol Valley
Verde Canyon
Verde Valley
Virgin River
Virgin River
Wellton-Mo
West Salt River
Western Mexican Drainage Basin
White River
Wikieup
Willcox
Yuma
groundwater Basins
Bonita Creek Basin,
Big Sandy Basin,
Bill Williams Basin,
Coconino Plateau Basin,
Donnelly Wash Basin,
Little Colorado River Plateau Basin,
Lower Gila Basin,
Morenci Basin,
Peach Springs Basin,
Salt River Basin,
San Rafael Basin,
Shvwits Plateau Basin,
Tiger Wash Basin
Verde River,
Western Mexican Drainage Basin.
watersheds
ama’s active management areas
Prescott AMA
Phoenix AMA
Pinal AMA
Tucson AMA
Santa Cruz AMA
Douglas AMA
irrigation non-expansion areas
Hualapai Valley INA
Joseph City INA