As I discussed maybe 8 years ago on this message board, due to the projected global warming issue that all new homes in LM should be required to have rain catchment systems in their designs to get approval. Also, the local and municipal governments should consider micro reservoirs above LM to collect rain so that in the winter the village has more water for back-up.
I just returned from the big island of Hawaii on the dry side (Kona) where most homes in fact do have simple rain catchment systems to do just that. I plan to build my own at my house that was built in LM 20 years ago prior to the influx of all of the new homes.
My suggestion still stands and is even more important now due to the continued shift in weather patterns around the world and in our little hamlet of LM ( el nino,global warming and overbuilding).