Sonoma 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.

Sonoma County GWPA map, PDF

Sonoma 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 GWPAs became effective on May 27, 2004.

COMTRS Condition
49M06N08W12 Runoff
49M07N08W06 Runoff
49M07N09W01 Runoff
49M08N08W31 Runoff
49M08N09W11 Runoff
49M08N09W14 Runoff
49M08N09W22 Runoff
49M08N09W23 Runoff
49M08N09W24 Runoff
49M08N09W25 Runoff
49M08N09W28 Leaching
49M09N09W08 Runoff
49M09N09W33 Leaching
49M10N10W23 Runoff