The Department of Water Resources Groundwater Information Center Interactive Map Application (GICIMA) has been superseded by the Sustainable Groundwater Management Act (SGMA) Data Viewer. Budgets with more wet years will look more favorable than budgets with more dry years. The Eastern San Joaquin Subbasin is drained by the San Joaquin River and several of its major tributaries namely, the Stanislaus, and Calaveras, and Mokelumne Rivers. Description The Madera Subbasin exists within the larger San Joaquin Valley Groundwater basin described in the California Department of Water Resources Bulletin 118.The County of Madera is the exclusive GSA for the portion of the Madera Subbasin in the undistracted land of the County. This High priority basin is home to an estimated 916,084 people (2010 value), which have been at a rate of 32.33. The Turlock Basin makes up 542 square miles (347,000 acres) of this total. Water budgets track the water coming into and going out of the groundwater basin. The San Joaquin Valley is a sediment-filled depression, called a basin, that is bound to the west by the California Coast Ranges, and to the east by the Sierra Nevadas. San Joaquin Valley – Kings is a(n) basin with approximately 17 wells, of which approximately 698 are water supply wells. Located in California's southern San Joaquin Valley, the Tulare Basin encompasses portions of Fresno, Kern, Kings, and Tulare Counties. Datasets previously found on the GICIMA application can … Formed in 2001, the GBA works to collectively develop locally supported groundwater projects to strengthen water supply reliability in Eastern San Joaquin County. Groundwater accounts for approximately 84 percent of the basin… It is classified as a forearc basin, which basically means that it is a basin that formed in front of a mountain range. part of the valley (the San Joaquin River hydrologic region) are more likely to include the recent drought than are the basins in the drier, more groundwater-dependent southern valley (the Tulare Lake Basin hydrologic region). All are affected—not just the Kern basin farmers they suggest. On the west side of Valley, the California Aqueduct has lost a 20% of its capacity from subsidence as well. The Turlock Basin is a sub-basin of the San Joaquin Valley groundwater basin which occupies approximately 13,700 total square miles, making it the largest groundwater basin in California. An Advisory Committee advises the Madera County GSAs for the Madera Subbasin. Subsidence due to groundwater pumping has been occurring in the San Joaquin Valley for almost a century, but it accelerated during the 2012–16 drought. If more groundwater is pumped than the amount replenished over time, the basin is in overdraft. Welcome to the Eastern San Joaquin County Groundwater Basin Authority (GBA). The San Joaquin River flows northward into the Sacramento and San Joaquin Delta and discharges into the San Francisco Bay. More than 16 rivers and creeks flow from surrounding mountains into the Basin’s small lakes and wetlands, which once comprised the largest freshwater lake west of the Mississippi River, the historic Tulare Lake.. The Eastern San Joaquin Groundwater Authority was established as a public entity with the mission of the Authority providing dynamic, cost-effective, flexible and collegial organization to insure initial and ongoing SGMA compliance within the Basin. 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