Coastal Aquifers

Coastal aquifers are underground layers of water-rich permeable rock, sand, or gravel located near coastlines. They store fresh water that has seeped from rainfall or surface sources, distinguishing it from seawater. Because they are adjacent to the ocean, these aquifers are vulnerable to saltwater intrusion, where seawater can mix with and contaminate the freshwater supply, especially if groundwater is overused or not managed properly. Coastal aquifers are vital for supplying drinking water and irrigation to nearby communities and are often monitored and protected to prevent contamination and sustain water resources.