This page features maps that are based on annual water level monitoring programs in the Tucson basin and in Avra Valley. Groundwater levels in all available City of Tucson wells are periodically measured to maintain long-term records to assist in management of local groundwater resources.
For further information, see 2018 Status and Quality of the Aquifer.
Depth to Groundwater Map
Discrete depth-to-groundwater data points and locations as well as contours depicting depth to groundwater in the Tucson basin and in Avra Valley are shown in the Depth to Groundwater Map.
Groundwater Elevation Map
Discrete groundwater table elevation data points and contours depicting groundwater elevation above sea level in the Tucson basin and in Avra Valley are shown in the Groundwater Elevation Map.
18-Year Groundwater Level Change
The result of 18 years of recharge and recovery of renewable water has been the recovery of groundwater levels in central Tucson of almost 63 feet and in southwestern Tucson of more than 88 feet.
These maps were updated and uploaded in September 2019. Recent groundwater levels can be queried directly from the Arizona Department of Water Resources Groundwater Site Inventory 
.
Have a question about area groundwater or groundwater maps? Send an e-mail to Tucson Water's Public Information / Conservation Office (PICO).
For more information, see the Arizona Department of Environmental Quality's Groundwater Open File Report and Groundwater Basin Fact Sheet for the Avra Valley Sub-Basin.