Water and wastewater treatment operators use mathematics to make key operational decisions. Math is also used in planning system maintenance, laboratory analyses, keeping records and estimating budgets. It is important for the operator to have an understating of math fundamentals along with the technical concepts of water and wastewater system operations. 

​

By reviewing the math principles presented in these handbooks and linking these principles to water and wastewater system concepts, the operator can better understand and solve math related problems. This Handbook presents typical problems and the methods used to solve these problems. 

​

These Handbooks are also a valuable resource in preparing the operator for math problems given on licensing examinations for water treatment and operation, and wastewater treatment certification. Typical exam problems are solved in an easy to understand, step-by-step format.