This completely updated version of the 1995 edition within the Water Supply Operations Training Series, i an essential text that is referenced throughout the other volumes in the WSO Series. Readers will find practical discussions of mathematics, hydraulics, chemistry, and electricity as they relate to water topics and system operations. Each chapter includes numerous examples. Step-by-step calculations with the answers included make this an ideal self-study format. Included are a glossary and index, as well as appendixes incorporating conversion tables, the periodic table, a list of elements, and color plates illustrating common algae types. (Previous edition ISBN: 0-89867-796-3)