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The problem is driven by groundwater overdraft, which occurs when the amount of water pumped out exceeds the amount of recharge. When clay layers in aquifers are drained and collapse, the loss of ...
When groundwater is extracted from an aquifer, a cone of depression is created around the well.As the drafting of water continues, the cone increases in radius. Extracting too much water (overdrafting) can lead to negative impacts such as a drop of the water table, land subsidence, and loss of surface water reaching the streams.
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.
California’s San Joaquin Valley may be sinking nearly an inch per year due to the over-pumping of groundwater supplies, with resource extraction outpacing natural recharge, a new study has found.
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.
This is an accepted version of this page This is the latest accepted revision, reviewed on 31 October 2024. Water located beneath the ground surface An illustration showing groundwater in aquifers (in blue) (1, 5 and 6) below the water table (4), and three different wells (7, 8 and 9) dug to reach it. Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in ...
Mayes told reporters Wednesday that the Arizona Legislature has done nothing to fix the groundwater problem despite knowing about the problem for years. “While laws regulating groundwater pumping could have prevented this situation, the legislature’s inaction has allowed the crisis to grow,” Mayes said.
California's water board has for the first time put a farming region on probation for failing to adopt measures to curb excessive pumping of groundwater.