Multi-Source Raw Water Supply Development for a Proposed Reverse Osmosis Plant on New Providence Island, Bahamas

Reverse osmosis water treatment facilities in the Bahamas typically use water wells tapping seawater as a source of raw water supply. In order to reduce treatment costs for a site on New Providence Island, an investigation was conducted on a man-made lake containing brackish water utalizing the surrounding shallow groundwater system. The hydrogeologic investigation included test drilling, aquifer testing, water quality sampling and analysis, and groundwater modeling to evaluate short- and long-term changes in water quality needed to design a new membrane treatment facility. The investigation was made to assess the feasibility of treating brackish water in addition to using seawater.