The American Water Works Association announces the publication of two new guides for wastewater treatment operators: Math for Wastewater Treatment Operators: Grades 1 and 2, and Grades 3 and 4. These volumes, written to provide students and operators with a focused way to prepare for the many challenging math problems likely to be encountered on certification exams, also serve as easy reference guides for common calculations wastewater operators encounter every day. Each book offers hundreds of math problems and solutions covering the full spectrum of wastewater treatment operations.Appendixes include common conversion factors, a summary of wastewater treatment equations, chemistry tables, wastewater flow chart diagrams and more.www.awwa.org/bookstore
