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The Central Valley in California subsides when groundwater is pumped faster than underground aquifers can be recharged. The Central Valley has been sinking at differing rates since the 1920s and is estimated to have sunk up to 28 feet. [1] During drought years, the valley is prone to accelerated subsidence due to groundwater extraction.
Groundwater has stayed under the regulation radar, which led to the overdraft of vital basins and the subsidence of land taking place throughout the Central Valley. The SGMA gives responsibility to both state authority and local oversight to bring groundwater basins in California to sustainable yields within a given time period.
In California, subsidence is often attributed to overpumping of the state's groundwater — the water that sits beneath the Earth's surface — because too much pumping can make the ground sink ...
Bridges, levees, roads, and groundwater wells are either at risk of damage or have been damaged already. With subsidence progression, underground aquifers could be at risk and water storage from them could be threatened. [27] Damage and sinking of the canal of the aqueduct has already occurred from subsidence which has made the canal less reliable.
Groundwater-related subsidence is the subsidence (or the sinking) of land resulting from unsustainable groundwater extraction.It is a growing problem in the developing world as cities increase in population and water use, without adequate pumping regulation and enforcement.
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If a neighbor's excavation or excessive extraction of underground liquid deposits (crude oil or aquifers) causes subsidence, such as by causing the landowner's land to cave in, the neighbor will be subject to strict liability in a tort action. The neighbor will also be strictly liable for damage to buildings on the landowner's property if the ...
California is embracing carbon capture and storage technology to fight global warming, but critics say it will only increase oil production. California hopes to fight global warming by pumping CO2 ...