GIS Data and Maps
Pilot GWSI Application
We are pleased to announce the release of a pilot version for our new Groundwater Site Inventory (GWSI) application. We invite you to try out the new application and give us feedback on issues found or new features you would like to see. The classic GWSI application will also remain available during this pilot phase.
ADWR Data Downloads
GIS Data and Maps
Use this ADWR Open Data Portal to access current GIS data.
ADWR TABULAR Data Download
Below are zip files of raw data from ADWR databases.
The Groundwater Site Inventory (GWSI) consists of field-verified data regarding wells and springs collected by personnel from the Hydrology Division’s Basic Data Section, the U.S. Geological Survey and other co-operating agencies. The information in GWSI is constantly being updated by ongoing field investigations and through a state-wide network of water level and water quality monitoring sites.
If you are interested in using the GWSI mapping tool, please see the ADWR GWSI Web Application.
These tables were last updated 07/13/2023.
Statewide Map
Download the published PDF maps. To submit a Public Records Request, please fill out our Public Records Request Form.
Watersheds Subject to Adjudication & Tribal Lands
Watersheds and Groundwater Basins
Groundwater Basins and Sub Basins
Groundwater Basins with Central Arizona Project
Irrigation Districts
Arizona Counties
Water-level Change map series 1993-2013
Groundwater Basins with Central Arizona Project
AMA, INA, & Local Maps
Download the published PDF maps. To submit a Public Records Request, please fill out our Public Records Request Form.
Buckeye Water Logged Area
Joseph City INA
Phoenix AMA
AAWS Issued Determinations
| Data: | AAWS issued determinations, water provider service areas, water company franchise areas, pumping/recovery wells & recharge facilities |
|---|---|
| Features: | Interactive map with multiple cadastral selection |
| Purpose: | Obtain data on the AAWS program |
Groundwater levels & elevations
| Data: | Water levels (including index wells and transducers), accurate well location |
|---|---|
| Features: | Hydrographs, Interactive map |
| Purpose: | Site ID (332751112141101) or Local ID (A-01-01 02BBB1) |
Registry of wells in Arizona
| Data: | Registry Number, Owner information, associated water rights, & pumping data |
|---|---|
| Features: | Guided search tool (including well owner), interactive map |
| Purpose: | Well Registry Number (55-xxxxxx) |
Community Water Systems
| Data: | Water provider service areas and wells |
|---|---|
| Features: | Interactive map with search feature to find water providers by name or location; to view their contact information; and, to access the imaged records of annual reports, system water plans and correspondence of water providers |
| Purpose: | Allows users to find their water providers based on their address or parcel information |
For additional GIS Feature Classes pertaining
to the State of Arizona, please visit the