No-build approaches and alternative technologies can reduce the cost of water upgrades in small towns.

The district is awash in expensive projects to bring water to sparsely populated areas. Are they worth it?

Somebody has to pony up billions of dollars to upgrade drinking water and sewer systems throughout the district.

Big pipelines aren't the only solution to the water problems of rural areas.

Markets hold promise for resolving disputes over water use. But the intricate economics-and persistent politics-of water suggest that governments will remain part of the picture.