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Groundwater Data & Monitoring

South Central Region
Groundwater Level Monitoring

Statewide Groundwater Level Data

Accessing Historical Groundwater Level Measurement Data
Statewide groundwater level data, including wells within the South Central Region boundary, are available for download at the Department's Water Data Library website. This site provides a graphical interface that allows selection of individual wells from a local area map. A selected well will return a groundwater level hydrograph and data table including the depth to water below reference point, elevation of water surface and depth to water below land surface. This site maintains groundwater level information for nearly 18,000 wells within the South Central Region boundary and a total of about 60,000 wells statewide. The data for some wells extend back to 1910.

Additional Information: The Department assigns a State Well Number to locate each measured well found in our database. For more information visit the Well Numbering System website.

The Department cooperates with the U.S. Geological Survey, U.S. Bureau of Reclamation, water agencies, irrigation districts, and other entities in the systematic observation of groundwater levels.

Groundwater Basin Contour Maps

This list provides links to available groundwater basin contour maps. Click here for a regional index map.

San Joaquin River Region

5-22.02 Modesto
Groundwater Elevation: 1958 | 1962 | 1969 | 1970 | 1976 | 1984 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
Depth to Water: 2000 | 2010

5-22.03 Turlock
Groundwater Elevation: 1958 | 1962 | 1969 | 1970 | 1976 | 1984 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
Depth to Water: 2000 | 2010

5-22.04 Merced
Groundwater Elevation: 1958 | 1962 | 1969 | 1970 | 1976 | 1984 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
Depth to Water: 2000 | 2010

5-22.05 Chowchilla
Groundwater Elevation: 1958 | 1962 | 1969 | 1970 | 1976 | 1984 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
Depth to Water: 2000 | 2010

5-22.06 Madera
Groundwater Elevation: 1958 | 1962 | 1969 | 1970 | 1976 | 1984 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
Depth to Water: 2000 | 2010

5-22.07 Delta-Mendota
Groundwater Elevation: 1958 | 1962 | 1969 | 1970 | 1976 | 1984 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010

Tulare Lake Region

5-22.08 Kings
Groundwater Elevation: 1958 | 1962 | 1969 | 1970 | 1976 | 1984 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
Depth to Water: 2000 | 2010

5-22.09 Westside
Groundwater Elevation: 1996

5-22.10 Pleasant Valley
Groundwater Elevation: 1962 | 1969 | 1970 | 1976 | 1984 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004

5-22.11 Kaweah
Groundwater Elevation: 1958 | 1962 | 1969 | 1970 | 1976 | 1984 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
Depth to Water: 2000 | 2010

5-22.12 Tulare Lake
Groundwater Elevation: 1958 | 1962 | 1969 | 1970 | 1976 | 1984 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
Depth to Water: 2000 | 2010

5-22.13 Tule
Groundwater Elevation: 1958 | 1962 | 1969 | 1970 | 1976 | 1984 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
Depth to Water: 2000 | 2010

5-22.14 Kern County
Groundwater Elevation: 1958 | 1962 | 1969 | 1970 | 1976 | 1984 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
Depth to Water: 2000 | 2010

Hydrologic Region Contour Maps

This list provides links to available hydrologic region contour maps. The maps are 70 inches wide by 22 inches high; most commercial printing and copy stores can print the PDF file as a full size map. Clicking on a link will open the map in PDF format that requires Adobe Acrobat Reader to view. A free copy of Adobe Acrobat Reader is available at www.adobe.com.

San Joaquin River and Tulare Lake Region

Groundwater Elevation: 1952 | 1958 | 1962 | 1963 | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010
Depth to Water: 1976 | 1981 | 1983 | 1988 | 1995 | 2000 | 2005 | 2010

 

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