Currently, groundwater is the only source for domestic, agricultural and municipal water use in the Cuyama Valley groundwater basin in Santa Barbara County, California. Groundwater withdrawals, mainly to irrigate agricultural crops, have resulted in water-level declines of as much as 300 feet in the area since the 1940s. To plan for sustainable future use of the groundwater, the U.S. Geological Survey (USGS), in cooperation with the Santa Barbara County Water Agency have conducted research aimed at defining the quantity and quality of the groundwater supply, and are establishing tools to allow users to efficiently utilize the available groundwater resources.
Geohydrologic Framework
The Cuyama groundwater basin's geologic structure is composed of sub-basins and groundwater does not move freely between these different formations, or between different geologic regions within the Cuyama Valley. Because of the differences in geology, hydrology and water quality, there are unique conditions and issues for each subbasin, in addition to a need for a whole-basin understanding of the system.
Learn About Cuyama Valley Geology »
Water Quality
Water-quality and water-level monitoring data-collection networks were established in the Cuyama Valley study area. This network uses both existing wells and new multiple-well groundwater monitoring sites.
Learn About Water Quality in the Cuyama Valley »
Geomechanics
Is the Cuyama groundwater basin to subsiding? Explore how USGS scientists used continuously operating global positioning system (GPS) and interferometric synthetic aperture radar (InSAR) data to answer this question.
Below are publications associated with this project.
Hydrologic models and analysis of water availability in Cuyama Valley, California
Cuyama Valley, California hydrologic study: an assessment of water availability
Ground water in the Cuyama Valley, California
Below are data or web applications associated with this project.
California Groundwater Model Archive
The USGS models shown on this site are in the public domain, and are freely available. They are based on MODFLOW and other public-domain USGS software. Links to publications and web resources associated with each model are shown in the table next to the model map. The associated model files for some of these models are currently available via download.
- Overview
Currently, groundwater is the only source for domestic, agricultural and municipal water use in the Cuyama Valley groundwater basin in Santa Barbara County, California. Groundwater withdrawals, mainly to irrigate agricultural crops, have resulted in water-level declines of as much as 300 feet in the area since the 1940s. To plan for sustainable future use of the groundwater, the U.S. Geological Survey (USGS), in cooperation with the Santa Barbara County Water Agency have conducted research aimed at defining the quantity and quality of the groundwater supply, and are establishing tools to allow users to efficiently utilize the available groundwater resources.
Detailed location map of the Cuyama Valley, California watershed and groundwater basin, with the hydrologic model boundary and major rivers. (Public domain.) Geohydrologic Framework
The Cuyama groundwater basin's geologic structure is composed of sub-basins and groundwater does not move freely between these different formations, or between different geologic regions within the Cuyama Valley. Because of the differences in geology, hydrology and water quality, there are unique conditions and issues for each subbasin, in addition to a need for a whole-basin understanding of the system.
Learn About Cuyama Valley Geology »
Water Quality
Water-quality and water-level monitoring data-collection networks were established in the Cuyama Valley study area. This network uses both existing wells and new multiple-well groundwater monitoring sites.
Learn About Water Quality in the Cuyama Valley »
Geomechanics
Is the Cuyama groundwater basin to subsiding? Explore how USGS scientists used continuously operating global positioning system (GPS) and interferometric synthetic aperture radar (InSAR) data to answer this question.
- Publications
Below are publications associated with this project.
Hydrologic models and analysis of water availability in Cuyama Valley, California
Changes in population, agricultural development practices (including shifts to more water-intensive crops), and climate variability are placing increasingly larger demands on available water resources, particularly groundwater, in the Cuyama Valley, one of the most productive agricultural regions in Santa Barbara County. The goal of this study was to produce a model capable of being accurate at scAuthorsR. T. Hanson, Lorraine E. Flint, Claudia C. Faunt, Dennis R. Gibbs, Wolfgang SchmidCuyama Valley, California hydrologic study: an assessment of water availability
Water resources are under pressure throughout California, particularly in agriculturally dominated valleys. Since 1949, the Cuyama Valley’s irrigated acreage has increased from 13 to 35 percent of the valley. Increased agriculture has contributed to the demand for water beyond natural recharge. The tools and information developed for this study can be used to help understand the Cuyama Valley aquiAuthorsRandall T. Hanson, Donald S. SweetkindGround water in the Cuyama Valley, California
This is the fourth of a series of interpretive reports on the water resources of the major valleys of Santa Barbara County, Calif., prepared by the Geological Survey, United States Department of the Interior, in cooperation with Santa Barbara County. The first three reports described the other major valleys in the county: the south-coast basins, Goleta and Carpinteria, and the Santa Maria and SantAuthorsJ. E. Upson, George Frank Worts - Web Tools
Below are data or web applications associated with this project.
California Groundwater Model Archive
The USGS models shown on this site are in the public domain, and are freely available. They are based on MODFLOW and other public-domain USGS software. Links to publications and web resources associated with each model are shown in the table next to the model map. The associated model files for some of these models are currently available via download.