Although the federal government has played a significant role in developing water quality regulations and standards for municipal and industrial (M&I) water use, it historically has provided a relatively small percentage of the funding for construction of water supply and treatment facilities for M&I uses. Yet, several programs exist to assist communities with development of water supply and treatment projects, and it appears that Congress is more frequently being asked to authorize direct financial and technical assistance for developing or treating water supplies for M&I use. This book presents background information on the types of water supply and wastewater treatment projects traditionally funded by the federal government and the several existing programs to assist communities with water supply and wastewater recycling treatment.