Water & WastewaterState certification9 free questions
Water Treatment Grade 1 Study Guide
Everything you need to know before sitting the Water Treatment Operator — Grade 1 exam, in one place.
Topic weights
| Topic | Approximate share |
|---|---|
| Treatment processes | 40% |
| Water quality and monitoring | 20% |
| Equipment and maintenance | 10% |
| Safety and regulations | 10% |
| Operator math | 20% |
How to prepare
- Practice each topic until you consistently score above 80%.
- Work operator math by hand — unit conversions, flow, dosage and detention time appear on every exam.
- Take timed mock exams and review every missed question's explanation.
- Re-drill the weak categories your dashboard highlights.