A siding and a couple of tanker cars

As their classmates set off to play after school each day, nine-year-old Sakshi Garud and her neighbour Siddharth Dhage, 10, are among a small group of children who take a 14 km (9 miles) return train journey from their village in India to fetch water.
Their families are some of the poorest in the hamlet of Mukundwadi, in the western state of Maharashtra, a village that has suffered back-to-back droughts.

Bill Gates will fund it. The tankers are 50 grand, used refurbished. The siding is another fifty grand.

Or, 9 miles of PVC pipe is not that bad, my brother and I laid that much one summer in the mountains.  Use the railway right of way. Trench it in, a few people working the glue and one or two car loads of 3 inch PVC.