The first global Water and Development Strategy outlines the approach that will guide USAID's water programming through 2018. The Strategy emphasizes sustainability, working through host country systems, using emerging science and technology, and learning from past efforts.Read more

A sewer system is a network of underground pipes that carries sewage by gravity flow from a number of dwellings. This technical note describes the elements involved in designing a sewer system. It does not attempt to explain everything needed to design a sewer system.Read more

The amount of money governments spend on irrigation development continues to be a matter of major policy concern, the more so as "the fiscal crisis" constraints governments not only in the developing world but in the U.S. as well. A discussion of the state of the art in this policy area...Read more

Information on test-well drilling was compiled in 1957 in the Resources Div., U.S. Geological Survey, Tucson, Arizona, for use in the training of participants from foreign countries. The data pertains largely to the geologic and hydrologic aspects of test-well drilling and supplement instructions...Read more