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California groundwater basins, subbasins, and hydrologic regions. The California Department of Water Resources recognizes 10 hydrologic regions and three additional drainage areas within the U.S. state of California. The hydrologic regions are further subdivided into 515 groundwater basins. [1]
This map of United States water resource subregion hydrologic units updated boundaries to include the ocean as well as the portions of the basins that cross international borders For the use of hydrologists, ecologists, and water-resource managers in the study of surface water flows in the United States, the United States Geological Survey ...
Basin map 180701 Ventura–San Gabriel Coastal water resource basin: The drainage into the Pacific Ocean from the Rincon Creek Basin boundary to and including the San Gabriel River Basin. [5] Ventura County, Los Angeles County: 4,530 sq mi (11,700 km 2) HUC180201: 180702 Santa Ana water resource basin
Map of California's interconnected water system, including all eleven reservoirs over 1,000,000 acre-feet (1.2 km 3) as well as selected smaller ones. This is a list of the largest reservoirs, or man-made lakes, in the U.S. state of California.
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
Printable version; In other projects ... San Francisco Bay watershed (6 C, 14 P) T. ... Pages in category "Watersheds of California" The following 18 pages are in ...
The dominant geological feature in the Santiago Creek watershed are the Santa Ana Mountains. The northern portion of the mountains, which Santiago Creek drains, is composed of rocks from the pre-Triassic to the Quaternary (251–2.6 MYA). [8] These rocks consist primarily of slate, sandstone, conglomerate, limestone, and other sedimentary rocks ...
Print/export Download as PDF; Printable version; In other projects ... California Water Service Company: 1896: Earth: 61 19: 672: 829 Bear River Reservoir: Bear River ...