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In 1980, DWR noted that of California's 450 groundwater basins that were defined at the time, 40 were in overdraft and 11 were identified as being in "critically overdrafted conditions" (COD). [5] Groundwater levels had dropped from 50 feet below historic levels and up to 100 feet below in the San Joaquin Valley.
In California, groundwater accounts for around 41% of the state's total water supply, [1] although this number varies between wet and dry years. During years of greater than average rainfall, less groundwater is used to allow for reserves to be available during dry years. Up to 60% of all water can be sourced from groundwater during dry years.
The Groundwater Ambient Monitoring and Assessment Program (GAMA) is an all-inclusive monitoring program for groundwater that was implemented in 2000 in California, United States. It was created by the California State Water Resources Control Board as an improvement from groundwater programs that were already in place.
Ten years ago, California adopted a law to curb chronic overpumping of groundwater. Significant challenges remain, even as the state works toward its goals.
Siding with environmental groups, a judge has ruled that Sonoma County must take action to protect creeks and salmon from excessive groundwater pumping.
One of the most consequential environmental laws in state history turned 10 years old last month. You’d be forgiven if you didn’t notice. The Sustainable Groundwater Management Act remains ...
[4] [11] The California Sustainable Groundwater Management Act of 2014 was the first to specify how to manage groundwater in a way that would not harm or endanger future access to clean groundwater. [2] Before this act, no regulations governed groundwater management other than the federal Safe Drinking Water Act and Clean Water Act. These acts ...
The state groundwater law, which was signed nearly 10 years ago, requires local agencies in many areas to develop groundwater plans and curb overpumping by 2040.