Plans and Reports


Ojai Basin Groundwater Management Plans

Ojai Basin Groundwater Management Plan, 2007

Ojai Basin Groundwater Management Plan, 1994


OBGMA Annual Reports

Due to the legislative adoption of the Sustainable Groundwater Management Act, by the State of California, Annual Groundwater Reports have been suspended until OBGMA has adopted and submitted an Alternative Groundwater Management Plan to the Department of Water Resources in January 2017. It is expected that this plan will be updated annually thereafter.

OBGMA_Annual_Report, 2011 and 2012



Ojai Basin Groundwater Model Reports

by Daniel B. Stephens & Associates

Model Update: Extended Simulations through 2020, Aug 2014

Model Update: Extended Calibration through 2013, May 2014 

Groundwater Model, Nov 2011 (60MB pdf) requires DropBox account to download file.


Annual Groundwater Monitoring Reports, Ventura County

by Ventura County Watershed Protection District

Ventura County Groundwater Annual Report, 2014

Ventura County Groundwater Annual Report, 2013

Ventura County Groundwater Annual Report, 2012


Other Studies, Reports, and Plans

California’s Groundwater: Bulletin 118 (California Department of Water Resources)

GeoHydrology of the Ventura River System: Ground Water Hydrology, 1971 and Plates
(Ventura County Flood Control District)

Golden State Water Company 2010 Urban Water Management Plan, Ojai

Hydrogeology of the Ojai Groundwater Basin, 2005 (Jordan Kear)

Hydrologic Assessment, San Antonio Creek Sub-Watershed, 2006 (Daniel B. Stephens & Associates)

San Antonio Creek Spreading Grounds, Proposition 50 Final Grant Report, 2014
(Ventura County Watershed Protection District) 

Ventura River Watershed Management Plan, 2015