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 .
The Central Valley watershed, which incorporates the Sacramento River, San Joaquin River and Tulare Lake regions, is the largest in California, draining over a third of the state – 60,000 square miles (160,000 km 2) – and producing nearly half the total runoff.
“It’s unlikely that it will rain here until maybe October.”
A water resource region is the first level of classification used by the United States Geological Survey to divide and sub-divide the United States into successively smaller hydrologic units as part of the U.S. hydrologic unit system. This first level of classification divides the United States into 21 major geographic areas, or regions.
For premium support please call: 800-290-4726 more ways to reach us
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