Saltwater intrusion results from

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Saltwater intrusion occurs when groundwater is overpumped, causing a decrease in aquifer pressure and allowing saltwater to move into the aquifer from surrounding marine or brackish water bodies. This results in a rise in the salinity of the groundwater, making it unfit for consumption or irrigation. Injection of brine wastes into aquifers can also lead to saltwater intrusion; however, this is a less common cause compared to overpumping of groundwater. Hurricane-induced flooding may temporarily increase the salinity of surface waters, but does not directly contribute to saltwater intrusion. The rising salinity of seawater is a consequence of climate change and has the potential to exacerbate saltwater intrusion in coastal aquifers.

Saltwater Intrusion Results from