AEM Survey Schedule

Check this site for regular survey schedule updates.

Survey Schedule Map

Click on a completed groundwater basin to see when it was surveyed. All project data will be published on the  California Natural Resources Agency Open Data Portal . Flight lines where data have been collected to date are displayed on the  AEM Flight Line Map . Published AEM data can be viewed online using DWR’s  AEM Data Viewer .

AEM Data Availability and Links

Subbasin Names

Survey Completion Data

Data Availability Date

Survey Area 1

August 2021

Data Reports and  Dataset   Published February 2022

Survey Area 2

November 2021

Data Reports and  Dataset   Published October 2022

Survey Area 3

November 2021

Data Reports and  Dataset   Published February 2023

Survey Area 4

December 2021/ March 2022

Data Reports and  Dataset   Published March 2023

Survey Area 5

April 2022

Data Reports and  Dataset   Published April 2023

Survey Area 6

April 2022

Data Reports and  Dataset   Published May 2023

Survey Area 7

May 2022

Data Reports and  Dataset   Published June2023

Survey Area 8

November 2022

Data Reports and  Dataset   Published February 2023

Survey Area 9

Basin Characterization Pilot Study 1 - Madera and Kings

April 2023

 Data Reports  and  Dataset  Published February 2024

Survey Area 11

Indian Wells Valley, Rose Valley, Owens Valley, Fish Slough, Indio, Mission Creek, West Salton Sea (limited), East Salton Sea (limited), Ocotillo-Clark Valley (limited), Imperial Valley (limited),Chocolate Valley (limited), Borrego Springs, San Jacinto

November 2023

 Dataset  Published August 2024

All Data Reports and Datasets are available from the  California Natural Resources Agency Open Data Portal .

Survey Area

Subbasin Names

Survey Date

Expected Data Availability Date

Survey Area 10

San Antonio Creek Valley, Arroyo Grande, Santa Maria, San Luis Obispo, Los Osos Area, Warden Creek, Chorro Valley (limited), Morro Valley (limited)

November 22-26, 2023

Third Quarter 2024

Data Visualization

All data collected as a part of the Statewide AEM Surveys are available to view through DWR's  AEM Data Viewers.  The AEM 3D Viewer and AEM Profile Viewer are innovative tools that allows GSAs and stakeholders to view AEM datasets online. The GIS-based tools allow datasets can be viewed in a three-dimensional space and allows the user to interact with the data by zooming in and viewing the data from various angles. The tools can be accessed on a computer or mobile phone and does not require data to be downloaded or the use of specialized software.

AEM 3D Viewer - Map

To return to the California Department of Water Resources AEM webpage,  click here . For inquiries, email us at AEM@water.ca.gov.