AWWA-20683 Wastewater Operator Certification Study Guide
A guide and practice workbook to preparing for wastewater treatment operator state certification exams.
Pass your wastewater certification exam the first time! Wastewater Operator Certification Study Guide, is specially developed to give wastewater operators practice answering questions that are similar in format and content to the questions that appear on certification exams. Sample questions are provided for Classes I, II, III, and IV wastewater operator certification exams, so you can study the questions that are specific to your grade level. Answers and references are included for questions. Math questions include the method to solve.