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TCEQ Class C Groundwater practice exam: the full 100-question exam

100 questions · 180 minutes · pass mark 70 of 100

100 questions across TCEQ’s Need-to-Know subjects. You get a score by subject and topic, and an explanation for every option.

Start a free 10-question drill first

Before you start

  • Every question has four options and one best answer.
  • Content: Rules/Regulations 15, Safety 15, General 14, Production/Treatment 14, Storage/Distribution 14, Disinfection 14, Math 14.
  • TCEQ publishes the subjects but not the number of questions, their weights or the time limit for this exam. Our practice exam is 100 questions in 3 hours with the subjects in equal shares.
  • You can skip, go back, change answers and flag questions. The 180-minute clock keeps running in background tabs and reloads, and the exam is submitted when time runs out.

Game Assessment Prep is an independent practice site, not affiliated with or endorsed by Water Professionals International (WPI, formerly ABC), the California State Water Resources Control Board or the Texas Commission on Environmental Quality. Every question is original; none is taken from a certification exam, an official study guide or another prep provider.