Search results
Results from the WOW.Com Content Network
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]
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 Sacramento River (Spanish: Río Sacramento) is the principal river of Northern California in the United States and is the largest river in California. [9] Rising in the Klamath Mountains , the river flows south for 400 miles (640 km) before reaching the Sacramento–San Joaquin River Delta and San Francisco Bay .
These basins are divided from one another by the crests of mountains. From north to south the basins are: North Coast, Sacramento River, North Lahontan, San Francisco Bay, San Joaquin River, Central Coast, Tulare Lake, South Lahontan, South Coast, and Colorado River regions. Each region incorporates watersheds from many rivers of similar clime ...
March 1, 1999–June 1, 2003 Michael J. Spear: June 9, 2003–November 16, 2003 Interim Director Linda S. Adams November 17, 2003–February 23, 2004 DWR's first female director. Lester A. Snow February 24, 2004–January 31, 2010 Mark W. Cowin February 1, 2010–Dec 31, 2016 Bill Croyle January 1, 2017 - July 1, 2017 Interim Director Grant Davis
The San Joaquin River throughout most of the Delta and the lower Sacramento River below its connection to the Sacramento Deep Water Ship Channel are routinely dredged to allow the passage of large cargo ships. The Sacramento River corridor has been maintained to a depth of 7 ft (2.1 m) as early as 1899, and was deepened to 30 ft (9.1 m) in 1955.
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]
During periods of extreme flood the lakes would expand further and overtop the low divides separating them, and separating Tulare Lake from the San Joaquin River. [1] San Francisco Bay occupies a gap in the Coast Ranges, and connects the Sacramento–San Joaquin Delta to the Pacific Ocean. A number of smaller rivers and creeks empty into San ...