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Groundwater is the water present below the earth’s surface and is a vast resource of water. Almost 22 percent of water is below the surface land in the form of groundwater. Groundwater is important as it is used for water supply in rural and urban areas. It is also often used for municipal, industrial and agricultural use by building and operating extraction wells.
≫ Groundwater Pollution
Generally, groundwater is good for drinking. Groundwater that is polluted is less visible and difficult to clean up than lakes and rivers. Most often groundwater pollution results from the disposal of wastes improperly including household and industrial chemicals, wastewater from mines, leaking underground oil storage, oil field brine pits, garbage landfills, and sewage systems.
Prevention of groundwater pollution can be done by:
≫ What are Porosity and Permeability?
≫ Porosity and Permeability Ranges for Sediment:
≫ Groundwater Recharge
Groundwater recharge is also known as deep percolation or deep drainage. It undergoes the hydrologic process, which moves surface water to groundwater. It is a primary method where water enters an aquifer. The recharge occurs at plant roots and is often known as a flux to the water table surface.
≫ Types of groundwater recharge:
Water Cycle: Naturally, through the water cycle.
Anthropogenic Processes: Anthropogenic process is also called artificial groundwater recharge, where rainwater and reclaimed water is routed to the subsurface.