Water Operator Certification: A Guide to Preparing for Water Treatment and Distribution Operator Certification Exams

This updated study guide follows the new requirements established by the American Board of Certification. It is organized by certification levels I, II, III, and IV. Questions are ranked for comprehension, application and analysis. With over 1000 vetted questions, twice as many as in the previous edition, operators get practice with questions similar to the exam. Answers are provided. Math and chemistry answers include the steps to solve the problems.