Directory of Tools & Data

A wide variety of online tools have been developed that can provide information about a groundwater basin.  Browse the tools and data sources below to find out more information about your groundwater basin.

Tool Post from

Display and download well information, groundwater data, hydrographs, maps, and more.

Tool Post from

This open data platform contains datasets from state agencies, including water quality, disadvantaged communities, crop mapping, Delta levees, g…

Tool Post from

This mapping tool shows disadvantaged community (DAC) status throughout the State, using the definition provided by Proposition 84 IRWM Guidelin…

Tool Post from

The GAMA Program’s online groundwater information system integrates and displays groundwater quality data from several different sources to he…

Tool Post from

This interactive web map displays all published reports from GAMA projects, while also providing study unit information. Reference layers are al…

Tool Post from

This tool allows you to view existing Bulletin 118 groundwater basin boundaries.

Tool Post from

GDE maps, GDE guidance, and a plant rooting depth database to incorporate GDEs into Groundwater Sustainability Plans.

Tool Post from

This mapping tool allows you to view and download groundwater depth information and download as GIS shapefiles or GeoTIFF raster files.

Tool Post from

This interactive web map plots water-quality data from domestic and public-supply wells sampled by the USGS for the California GAMA Priority Bas…

Tool Post from

GRAT is deisgned to help GSAs identify and prioritize the most cost-effective on-farm recharge projects and operations.

Tool Post from

This map shows areas of recorded subsidence—historical and current—across California.

Tool Post from

This mapping tool allows you to view and download both statewide and existing county land use datasets from the mid 1980s up to as recent as 201…