Sea water intrusion in coastal aquifers and sustainable solution to control the intrusion

Groundwater in coastal regions is often prone to degradation in quality due to sea water intrusion. Sea level rise, coastal geomorphology, the amplitude and frequency of water waves, the depth of water near the coast, changing precipitation regimes and changing groundwater recharge rates may all influence the incidence of saltwater intrusion. A systematic study has been carried out to evaluate salt water intrusion in the coastal aquifers of Visakhapatnam city, Andhra Pradesh, India. The study areas are alongside of the sea (Bay of Bengal) shore. Water samples from bore wells were analyzed to determine the physico-chemical parameters of groundwater. Presence of bromide in all samples and Cl/Br ratio confirms the seawater intrusion near seashore samples. This condition is attributed to anthropogenic activities of the respective area and also the influence of climate conditions over Bay of Bengal.
We seek sustainable solution to control the intrusion and implement protective measures such as conservation of ground water resources along with coastal management practices i.e. green belt development and strengthening of bunds along the coastal areas.