About the American Water Works Association
American Water Works Association is the authoritative resource for knowledge, infor-
mation, and advocacy to improve the quality and supply of water in North America and
beyond. AWWA is the anization of water professionals in the world. AWWA
advances public health, safety, and welfare by uniting the efforts of the full spectrum of
the entire munity. Through our collective strength we e better stewards of
water for the greatest good of the people and the environment.
American Water Works Association
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A Handbook on Drinking Water
James K. Edzwald, Editor
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