Contra Costa County Ground Water Protection Areas

Back to Ground Water Protection Area Locations


Locations of GWPAs can be accessed below in several formats. View the groundwater regulations and mitigation measures to understand and meet the requirements for the GWPAs.

Contra Costa County GWPA map, PDF

Contra Costa County shapefile, ZIP

The zip file includes eight files that comprise the shapefile. These files should be unzipped and remain together in a single directory. The shapefile may be opened with a GIS software such as ArcGIS, QGIS, or Google Earth.

List of GWPAs by Section (County, Meridian, Township, Range, Section [COMTRS])

The initial GWPAs became effective on May 27, 2004. The new GWPAs effective January 1, 2020 are marked with an asterisk *.

COMTRS Conditions
07M01S03E03* Runoff
07M01S03E04 Runoff
07M02N02W14 Runoff
07M02N02W24 Runoff