Thanks everyone for the ...

Thanks everyone for the suggestions and information. Just to give a little more background, the study is for the island of Roatán, off of the Caribbean coast of Honduras. There has been interest in expanding tourism and economic development, but many areas are lacking a reliable and quality water source. Pumped wells make up the majority of the water supply, with imported bottled water commonly used for drinking. It's very possible that the undersea pipeline is not the most economic approach, but funding would likely come mostly from external sources rather than the local government. To clarify, this is not an ongoing project, simply a study, so unfortunately I don't have much in the way of specific details.