Salt Water Intrusion in Wells
Salt water intrusion occurs in coastal freshwater aquifers when the different freshwater and salt water densities allow the intrusion of ocean water into the freshwater aquifer. These areas typically support populations where the groundwater demand from these aquifers exceeds the recharge or replenishment rate of fresh water. This can become more likely when the water is being used for in-house use as well as lawn irrigation. Irrigating with salty water will destroy grass, trees, and plants.
Aquifers are naturally replenished by precipitation and surface waters that saturate into the ground and work their way through the soil, rocks, etc. to the water table. The encroaching seawater will encounter an area known as the zone of dispersion, where the freshwater and saltwater mix. This interface moves back and forth naturally because of fluctuations in the recharge rate of freshwater back into the aquifer. The illustration above shows what this salt water intrusion looks like underground.
Where Saltwater Intrusion Occurs
If you have noticed salty taste, heavy corrosion, or a salty build-up on dishware or fixtures, contact us to discuss options, costs involved, etc.