Water & WastewaterState certification9 free questions

Free Water Treatment Grade 1 Practice Test

14 original practice questions across 5 sections. 9 are free, no account needed.

Quick practice

10 mixed questions with instant feedback. Good for a daily warm-up.

Drill one section at a time until you consistently score above 80%.

Pick your own question count and difficulty for a longer session.

20 questions in 20 minutes with a category breakdown at the end.

Practice sets of up to 10 questions from the 9 free questions, with full explanations.
Free accounts can complete 2 mock exams per certification; visitors without an account get a shorter 10-question sample.
Premium (coming soon) unlocks the full bank of 14 questions, unlimited mocks and detailed analytics.