chapter  3
44 Pages


Most calculations required by wastewater operators and engineers (as with many others) start with the basics, such as addition, subtraction, multiplication, division, and sequence of operations. Although many of the operations are fundamental tools within each operator’s toolbox, it is important to reuse these tools on a consistent basis to remain sharp in their use. Wastewater operators should master basic math definitions and the formation of problems; daily operations require calculation of percentage, average, simple ratio, geometric dimensions, threshold odor number, force, pressure, and head, and, at the higher levels of licensure, the use of dimensional analysis and advanced math operations.