A groundwater basin is defined as an alluvial aquifer or a stacked series of alluvial aquifers with reasonably well-defined boundaries in a lateral direction and a definable bottom. A groundwater basin is three-dimensional and includes both the surface extent and all of the subsurface fresh water yielding material.
Groundwater Basin in CA
Groundwater in California is also found outside of alluvial groundwater basins. Igneous extrusive (volcanic), igneous intrusive, metamorphic, and sedimentary rocks are all potential sources of groundwater. These rocks often supply enough water for domestic use, but in some cases can also yield substantial quantities.
As we can see in the map of groundwater that ground water basins are very limited in the California.
