Groundwater Maps

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 wells are periodically measured to maintain long-term records to assist in management of local groundwater resources.

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.

Depth to Groundwater Map from Tucson Water Nov. 2016-Feb. 2017; updated Feb. 2018.

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.

Groundwater Elevation Map from Tucson Water. Nov. 2015-Feb. 2016

16-Year Groundwater Level Change

The result of 16 years of recharge and recovery of renewable water has been the recovery of groundwater levels in central Tucson of almost 60 feet and in southwestern Tucson of more than 40 feet.

16-Year Groundwater Level Change (2000-2016)

These maps were updated and uploaded in October 2017. Recent groundwater levels can be queried directly from the Arizona Department of Water Resources Groundwater Site Inventory exiting Tucson Water website.

Have a question about groundwater or groundwater maps? Send an e-mail to Tucson Water's Public Information / Conservation Office (PICO).

The Arizona Department of Environmental Quality has published a Groundwater Open File Report exiting Tucson Water website and a Groundwater Basin Fact Sheet exiting Tucson Water website for the Avra Valley Sub-Basin.