ABSTRACT
Many of the numerous suggestions and recommendations from users of all three volumes of the first edition of Spellman’s Standard Handbook for Wastewater Operators have been incorporated into the second edition. For use as a study guide for operator licensure, the number one recommendation was to add more math. Users and reviewers pointed out that wastewater operators must perform various mathematical calculations as part of their assigned plant operations. Moreover, all levels of the licensure exams require test takers to work through a variety of operator math problems. In light of this and to stay current with applicable requirements, we have added more than 500 realworld (actual) wastewater calculations in this chapter. Many of these calculations are difficult or complex and require thorough knowledge of math operations to complete correctly. Try to work as many as you can without referring to Appendix A for the correct solution. When complete, check your answer against the solutions in Appendix A. For those questions answered incorrectly, work them again. Remember, practice makes perfect.
