California aquifers, excerpted from map in Ground Water Atlas of the United States (USGS, 2000): Lavender is "other" for "rocks that generally yield less than 10 gal/min to wells"; dark green-blue (3) are the California coastal basin aquifers, bright-turquoise blue (7) is the Central Valley aquifer system, flat cobalt-blue (1) down south is Basin and Range aquifers
Principal aquifers of California are those principal aquifers of the United States that lie within (or rather, below) the California state boundaries. Per the Oxford Dictionary of Environment and Conservation, an aquifer is a "body of permeable and/or porous rock that is underlain by impermeable rock and through which groundwater is able to flow."[1]
The state of California recognizes 515 groundwater basins and subbasins within these aquifers.[2] The groundwater basin of a given aquifer may be managed by a water district; for example the Coachella Valley Water District manages the underground water in California's Coachella Valley groundwater basin (CA groundwater basin no. 7–021), which lies within the Colorado River hydrologic region, one of the 13 top-level California state hydrologic regions and drainage areas. The California state hydrologic regions and drainage areas are quite similar but not identical to the federal hydrologic unit system's California water resource region surface-water drainage basins. The California Department of Water Resources has detailed descriptions (online in PDF format, etc.) of each of the 515 state-recognized groundwater basins.[2]
The principal aquifers of the United States are organized by national principal aquifer codes and names assigned by the National Water Information System (NWIS) of the United States Geological Survey. Aquifers are identified by a geohydrologic unit code (a three-digit number related to the age of the formation) followed by a four- or five-character abbreviation for the geologic unit or aquifer name.[3][4]
Aquifer name[3]
States overlying[3]
Category[3]
Rock type[3]
NWIS Code[3]
Basin and Range basin-fill aquifers
Arizona, California, Idaho, Nevada, New Mexico, Oregon, Utah
^Park, Chris C.; Allaby, Michael (2017). A dictionary of environment and conservation (3rd ed.). Oxford. ISBN 978-0-19-182632-0. OCLC 970401188.{{cite book}}: CS1 maint: location missing publisher (link)
^USGS Office of Groundwater (2000), Miller, James A. (ed.), Ground Water Atlas of the United States, Hydrologic Atlas 730, Reston, Virginia: U.S. Geological Survey, doi:10.3133/ha730
and 20 Related for: Principal aquifers of California information
This is a list of some aquifers in the United States. An aquifer is a geologic formation, a group of formations, or a part of a formation that contains...
and surface water impacts. There are two types ofaquifers: confined and unconfined. In confined aquifers, there is an overbearing layer called an aquitard...
called artificial recharge. Groundwater recharge Water in CaliforniaPrincipalaquifersofCalifornia "Hydrologic Unit Maps". USGS. Retrieved 2016-10-12. This...
List ofCalifornia hydrologic regions List of rivers in the United States Groundwater recharge Water in CaliforniaPrincipalaquifersofCalifornia California...
is the principal feature of the California State Water Project. The aqueduct begins at the Clifton Court Forebay at the southwestern corner of the Sacramento–San...
needed] Frederick Eaton and William Mulholland were two of the more visible principals in the California water wars. They were friends, having worked together...
aquifers e.g. by fracking or over abstraction, could therefore affect the rivers and lakes that rely on it. Saltwater intrusion into coastal aquifers...
Coast hydrologic region Groundwater recharge Water in CaliforniaPrincipalaquifersofCalifornia "USGS Water Resources: About USGS Water Resources". water...
depends mainly on pumping of groundwater from the valley's aquifers and on importing additional water from the California Aqueduct. Long-term groundwater...
valley aquifer is a groundwater aquifer located in the southern San Francisco Bay Area. The geology of the Santa Clara valley aquifer consists of a complex...
being one of the principal sources of water pollution. The table below shows the top 21 commodities, by dollar value, produced in California in 2017. Between...
along the principal axis and the length of the valley. The valley was named during the late 18th-century Spanish colonial Alta California period, and...
renewal. While the volume of groundwater in California is very large, aquifers can be over drafted when groundwater is removed more rapidly than it is...
what is now Downtown Los Angeles, as instructed by Spanish Governor of Las Californias, Felipe de Neve, and authorized by Viceroy Antonio María de Bucareli...
most of the moisture out of the air and feeds the various rivers and streams, which empty into Gulf ofCalifornia as well as underground aquifers under...
and what was initially a plentiful supply of groundwater. They soon realized, however, that the aquifer's water supply was finite and CVWD was voted...
that straddles the California–Nevada border, east of the Sierra Nevada. The park boundaries include Death Valley, the northern section of Panamint Valley...
most important type of gas storage is in underground reservoirs. There are three principal types — depleted gas reservoirs, aquifer reservoirs and salt...
County, California. Its watershed comprises an area of 17,238 acres. Its mean daily flow is approximately 15.4 cfs. Las Trampas Creek and its principal tributaries...
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