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California region, with its 10 4-digit subregion hydrologic unit boundaries. The California water resource region is one of 21 major geographic areas, or regions, in the first level of classification used by the United States Geological Survey in the United States hydrologic unit system, which is used to divide and sub-divide the United States into successively smaller hydrologic units.
The Southern California coastal subregion, sometimes called the South Coast Hydrologic Subregion, is a second-level subdivision [1] covering is approximately 11,000 sq mi (28,000 km 2; 7,000,000-acre) and extends from Rincon Creek on the north to the international border with Mexico on the south. [2]
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]
The Laguna–San Diego Coastal water resource basin is a third-level subdivision of the United States hydrologic unit system. [1] The tiers of the classification system, in order from largest to smallest, are regions , subregions, basins (formerly accounting units), subbasins (formerly cataloging units), watersheds, and subwatersheds.
The Ventura–San Gabriel Coastal water resource basin is a third-level subdivision of the United States hydrologic unit system. [1] The Ventura–San Gabriel Coastal basin is approximately 4,530 sq mi (11,700 km 2; 2,900,000-acre) and extends from Rincon Creek on the north to the San Gabriel Basin on the south. [2]
The California State Water Resources Control Board clarifies that water rights are a "legal permission to use a reasonable amount of water for a beneficial purpose such as swimming, fishing ...
The Safe Drinking Water, Wildfire Prevention, Drought Preparedness, and Clean Air Bond Act of 2024 would have the state borrow $10 billion to pay for climate and environmental projects ...
The Governor Edmund G. Brown California Aqueduct is a system of canals, tunnels, and pipelines that conveys water collected from the Sierra Nevada and valleys of Northern and Central California to Southern California. [4] Named after California Governor Edmund Gerald "Pat" Brown Sr., the over 400-mile (640 km) aqueduct is the principal feature ...