Grades IV - V / Class A Wastewater Exam Study Guide

This study guide is for anybody preparing for their state's advanced or top-level operator exam. This was written for California, but only two of the sixteen modules are California-specific, so operators anywhere sitting a Class A, Grade IV, or Grade 4 exam will find the process fundamentals apply directly.

Sixty-eight lessons across 272 pages, built from CCR Title 23 §3701(c)(4) and (c)(5), the State Water Board's Grade IV and Grade V exam information sheets, and fifteen years of running plants. Every lesson gives you the concept, the worked math, the troubleshooting logic, and exam-style practice questions with full answers, weighted toward where the exam actually concentrates: activated sludge process control, solids handling and biosolids, disinfection, and the tertiary treatment, water reuse and supervision material that separates this exam from the Grade III. Twenty lessons include a QR code linking straight to the video where I work the problem or walk the process at my plant.

Anybody who purchases this guide will get future versions for free! Future versions will have updated QR codes when new videos are released and any corrections, edits, or regulatory updates. Happy studying!