This third volume is a complete guide to the calculations required for water treatment. The text includes many worked examples, and calculations are summarized in each chapter. Includes a 522 page workbook. Topics covered include volume, flow and velocity, milligrams per liter to pounds per day, loading rate, detention and retention times, efficiency pumping, water sources and storage, coagulation and flocculation, sedimentation, filtration, chlorination, fluoridation, and softening.