Water & WastewaterState certification9 free questions
Collections Grade 1 Study Guide
Everything you need to know before sitting the Wastewater Collection System Operator — Grade 1 exam, in one place.
Topic weights
| Topic | Approximate share |
|---|---|
| Collection system components | 30% |
| Inspection, cleaning, and repair | 25% |
| Lift stations and pumps | 15% |
| Safety and regulations | 15% |
| Operator math | 15% |
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.