San Joaquin 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.

San Joaquin County GWPA map, PDF

San Joaquin 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   Condition
39M01N05E15* Runoff
39M01N05E16* Runoff
39M01N06E23 Runoff
39M01N06E34 Leaching
39M01N06E35 Runoff
39M01S06E01 Leaching
39M01S06E02 Leaching
39M01S06E03 Leaching
39M01S06E04 Leaching
39M01S06E10 Leaching
39M01S06E11 Leaching
39M01S06E12 Leaching
39M01S06E13 Leaching
39M01S06E14 Leaching
39M01S06E15 Leaching
39M01S06E22 Leaching
39M01S06E23 NE Runoff
39M01S06E23 NW Runoff
39M01S06E23 SE Leaching
39M01S06E23 SW Leaching
39M01S06E24 Leaching
39M01S06E25 Leaching
39M01S06E26 Leaching
39M01S06E35 Leaching
39M01S06E36 Leaching
39M01S07E07 Leaching
39M01S07E08 NE Runoff
39M01S07E08 NW Runoff
39M01S07E08 SE Leaching
39M01S07E08 SW Leaching
39M01S07E14 Runoff
39M01S07E15 NE Runoff
39M01S07E15 NW Leaching
39M01S07E15 SE Leaching
39M01S07E15 SW Leaching
39M01S07E16 Leaching
39M01S07E17 Leaching
39M01S07E18 Leaching
39M01S07E19 Leaching
39M01S07E20 Leaching
39M01S07E21 Leaching
39M01S07E22 Leaching
39M01S07E23 Leaching
39M01S07E24 Runoff
39M01S07E25 NE Runoff
39M01S07E25 NW Leaching
39M01S07E25 SE Runoff
39M01S07E25 SW Leaching
39M01S07E26 Leaching
39M01S07E27 Leaching
39M01S07E28 Leaching
39M01S07E29 Leaching
39M01S07E30 Leaching
39M01S07E31 Leaching
39M01S07E32 Leaching
39M01S07E33 Leaching
39M01S07E34 Leaching
39M01S07E35 Leaching
39M01S07E36 Leaching
39M01S08E14* Leaching
39M01S08E15* Runoff
39M01S08E19 Runoff
39M01S08E20 Runoff
39M01S08E26 Runoff
39M01S08E27 NE Runoff
39M01S08E27 NW Runoff
39M01S08E27 SE Leaching
39M01S08E27 SW Leaching
39M01S08E28 NE Runoff
39M01S08E28 NW Runoff
39M01S08E28 SE Leaching
39M01S08E28 SW Runoff
39M01S08E29 Runoff
39M01S08E30 Runoff
39M01S08E31 Leaching
39M01S08E32 Leaching
39M01S08E33 Runoff
39M01S08E34 Leaching
39M01S08E35 NE Runoff
39M01S08E35 NW Leaching
39M01S08E35 SE Leaching
39M01S08E35 SW Leaching
39M01S08E36 NE Leaching
39M01S08E36 NW Runoff
39M01S08E36 SE Leaching
39M01S08E36 SW Leaching
39M01S09E31 NE Leaching
39M01S09E31 NW Leaching
39M01S09E31 SE Runoff
39M01S09E31 SW Runoff
39M01S09E32 NE Runoff
39M01S09E32 NW Runoff
39M01S09E32 SE Leaching
39M01S09E32 SW Leaching
39M02N05E03 Leaching
39M02N05E04 Leaching
39M02N05E05 Leaching
39M02N05E08 Leaching
39M02N05E09 Leaching
39M02N05E10 Leaching
39M02N05E15 Leaching
39M02N05E16 Leaching
39M02N05E17 Leaching
39M02N05E21 Leaching
39M02N05E22 Leaching
39M02N05E23 Leaching
39M02N05E26 Leaching
39M02N05E27 Leaching
39M02N05E28 Leaching
39M02N05E33 Leaching
39M02N05E34 Leaching
39M02N06E06 Runoff
39M02S04E22* Runoff
39M02S05E13 Runoff
39M02S05E14 Runoff
39M02S05E23 Runoff
39M02S05E24 Runoff
39M02S06E01 Leaching
39M02S06E02 Leaching
39M02S06E03 Leaching
39M02S06E11 Leaching
39M02S06E12 Leaching
39M02S06E13 Leaching
39M02S06E14 Leaching
39M02S06E19 Runoff
39M02S06E24 Leaching
39M02S06E25 Leaching
39M02S06E36 Leaching
39M02S07E01 Leaching
39M02S07E02 Leaching
39M02S07E03 Leaching
39M02S07E04 Leaching
39M02S07E05 Leaching
39M02S07E06 Leaching
39M02S07E07 NE Leaching
39M02S07E07 NW Runoff
39M02S07E07 SE Leaching
39M02S07E07 SW Leaching
39M02S07E08 Leaching
39M02S07E09 Leaching
39M02S07E10 Leaching
39M02S07E11 Leaching
39M02S07E12 Leaching
39M02S07E13 Leaching
39M02S07E14 Leaching
39M02S07E15 Leaching
39M02S07E16 Leaching
39M02S07E17 Leaching
39M02S07E18 Leaching
39M02S07E19 Leaching
39M02S07E20 Leaching
39M02S07E21 Leaching
39M02S07E22 Leaching
39M02S07E23 Leaching
39M02S07E24 Leaching
39M02S07E25 Leaching
39M02S07E26 Leaching
39M02S07E27 NE Runoff
39M02S07E27 NW Leaching
39M02S07E27 SE Leaching
39M02S07E27 SW Leaching
39M02S07E28 Leaching
39M02S07E29 NE Runoff
39M02S07E29 NW Leaching
39M02S07E29 SE Leaching
39M02S07E29 SW Leaching
39M02S07E30 NE Leaching
39M02S07E30 NW Runoff
39M02S07E30 SE Leaching
39M02S07E30 SW Runoff
39M02S07E31 NE Leaching
39M02S07E31 NW Runoff
39M02S07E31 SE Runoff
39M02S07E31 SW Runoff
39M02S07E32 NE Leaching
39M02S07E32 NW Leaching
39M02S07E32 SE Runoff
39M02S07E32 SW Runoff
39M02S07E33 Runoff
39M02S07E34 NE Leaching
39M02S07E34 NW Leaching
39M02S07E34 SE Runoff
39M02S07E34 SW Runoff
39M02S07E35 Leaching
39M02S08E01 Leaching
39M02S08E02 Leaching
39M02S08E03 Leaching
39M02S08E04 Leaching
39M02S08E05 Leaching
39M02S08E06 Leaching
39M02S08E07 Leaching
39M02S08E08 Leaching
39M02S08E09 Leaching
39M02S08E10 Leaching
39M02S08E11 Leaching
39M02S08E12 Leaching
39M02S08E13 Leaching
39M02S08E14 Leaching
39M02S08E17 Leaching
39M02S08E18 Leaching
39M02S08E19 Leaching
39M02S08E20 Leaching
39M02S08E21 Leaching
39M02S08E29 Leaching
39M02S08E30 Leaching
39M02S09E02 Runoff
39M02S09E03 NE Runoff
39M02S09E03 NW Runoff
39M02S09E03 SE Leaching
39M02S09E03 SW Leaching
39M02S09E04 Leaching
39M02S09E05 Leaching
39M02S09E06 Leaching
39M02S09E07 Leaching
39M02S09E08 Leaching
39M02S09E09 Leaching
39M02S09E10 Leaching
39M02S09E11 NE Runoff
39M02S09E11 NW Leaching
39M02S09E11 SE Leaching
39M02S09E11 SW Leaching
39M02S09E12 Runoff
39M02S09E13 Leaching
39M02S09E14 Leaching
39M02S09E15 Leaching
39M02S09E16 Leaching
39M02S09E17 Leaching
39M02S09E18 Leaching
39M02S09E19 Leaching
39M02S09E20 Leaching
39M02S09E22 Leaching
39M02S09E23 Leaching
39M03N04E01 Leaching
39M03N04E02 Leaching
39M03N04E12 Leaching
39M03N05E01 Runoff
39M03N05E05 Leaching
39M03N05E06 Leaching
39M03N05E07 Leaching
39M03N05E08 Leaching
39M03N05E09 Leaching
39M03N05E12 Runoff
39M03N05E16 Leaching
39M03N05E17 Leaching
39M03N05E18 Leaching
39M03N05E20 Leaching
39M03N05E21 Leaching
39M03N05E28 Leaching
39M03N05E29 Leaching
39M03N05E32 Leaching
39M03N05E33 Leaching
39M03N05E34 Leaching
39M03N06E05 Leaching
39M03N06E06 Leaching
39M03N06E07 Leaching
39M03N06E08 NE Leaching
39M03N06E08 NW Runoff
39M03N06E08 SE Leaching
39M03N06E08 SW Leaching
39M03N06E09 NE Leaching
39M03N06E09 NW Leaching
39M03N06E09 SE Leaching
39M03N06E09 SW Runoff
39M03N06E10 Runoff
39M03N06E13 Leaching
39M03N06E14 Runoff
39M03N06E15 Runoff
39M03N06E17 Runoff
39M03N06E18 NE Leaching
39M03N06E18 NW Leaching
39M03N06E18 SE Leaching
39M03N06E18 SW Runoff
39M03N06E19* Leaching
39M03N06E22 Leaching
39M03N06E24 Leaching
39M03N06E25 Runoff
39M03N06E26 Runoff
39M03N06E27 Runoff
39M03N06E28 NE Leaching
39M03N06E28 NW Runoff
39M03N06E28 SE Leaching
39M03N06E28 SW Runoff
39M03N07E04 Leaching
39M03N07E05 Leaching
39M03N07E06 Leaching
39M03N07E18 Leaching
39M03N07E30 Runoff
39M03S06E12 Leaching
39M03S06E13 Leaching
39M03S06E24 Leaching
39M03S07E04 Runoff
39M03S07E05 Runoff
39M03S07E06 Runoff
39M03S07E07* Runoff
39M03S07E10 Leaching
39M03S07E19 Leaching
39M04N04E23 Leaching
39M04N04E24 Leaching
39M04N04E25 Leaching
39M04N04E26 Leaching
39M04N04E35 Leaching
39M04N04E36 Leaching
39M04N05E01 Runoff
39M04N05E22 NE Leaching
39M04N05E22 NW Leaching
39M04N05E22 SE Leaching
39M04N05E22 SW Runoff
39M04N05E23 Leaching
39M04N05E24 Leaching
39M04N05E25 Leaching
39M04N05E26 Runoff
39M04N05E28 Leaching
39M04N05E30 Leaching
39M04N05E31 Leaching
39M04N05E35* Runoff
39M04N05E36 Leaching
39M04N06E02 Runoff
39M04N06E03 Runoff
39M04N06E04 Runoff
39M04N06E05 Runoff
39M04N06E06 Runoff
39M04N06E09 Runoff
39M04N06E10 Runoff
39M04N06E11 Runoff
39M04N06E13 Runoff
39M04N06E14 Runoff
39M04N06E15 Runoff
39M04N06E19 Leaching
39M04N06E24 Leaching
39M04N06E26 Leaching
39M04N06E27 Leaching
39M04N06E28 Leaching
39M04N06E29 Leaching
39M04N06E30 Leaching
39M04N06E32 Leaching
39M04N06E33 Leaching
39M04N06E34 Leaching
39M04N06E35 Leaching
39M04N06E36 Leaching
39M04N07E31 Leaching
39M04N07E33 Leaching
39M05N06E34 Runoff
39M05N06E35 Runoff