I am searching the technology for rural community of Water Supply projects in Nepal, Source is around 500 m down deep slope and has to recommend lifting system, source is stream , high turbidity during rainy season and biological contamination, at the top 250m2 place land for reservoirs and treatment units , but main challenging is installation of pumping system and water treatment system in such situation, there is no other alternative source for gravitational system, do you have any cost effective solutions?