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Chennai is entirely dependent on ground water resources to meet its water needs. Ground water resources in Chennai are replenished by rainwater and the city's average rainfall is 1,276 mm. [7] Chennai receives about 985 million liters per day (mld) from various sources against the required amount of 1,200 mld. This demand is expected to rise to ...
The 2019 Chennai water crisis was a water crisis occurring in India, most notably in the coastal city of Chennai in Tamil Nadu. [1] On 19 June 2019, Chennai city officials declared that "Day Zero", or the day when almost no water is left, had been reached, as all the four main reservoirs supplying water to the city had run dry.
Chennai is one of the metros in India that are dependent mostly on ground water supply. Ground water in Chennai is replenished by rain water and average rainfall in Chennai is 1276 mm. [ 1 ] Chennai receives about 985 million liters per day (mld) from various sources against the required amount of 1200 mld and the demand is expected to rise to ...
Groundwater pumping has been causing the land to sink at a record pace in California's San Joaquin Valley. New research suggests ways of addressing the problem.
Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way into groundwater.This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant, or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution.
Groundwater can be considered one of the last free resources, as anyone who can afford to drill can usually draw up merely according to their ability to pump (depending on local regulations). However, as seen in the figure, pumping-induced draw down causes a depression of the groundwater surface around the production well. This can ultimately ...
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Siding with environmental groups, a judge has ruled that Sonoma County must take action to protect creeks and salmon from excessive groundwater pumping.