1. Safely repair or construct sewer lines and manholes.
2. Contact utility agencies with underground facilities near a construction or repair project before excavation starts.
3. Determine and check pipeline grade.
4. Raise a manhole frame and cover to grade.
5. Repair and install manhole bottoms.
6. Excavate, repair, and backfill service lines and main lines.
7. Describe the duties of a wastewater collection system construction
inspector.
8. Inspect a sewer under construction for proper bedding materials and construction, pipe laying procedures, and backfilling and compaction.
9. Test the ability of a wastewater collection system to withstand inflow/infiltration.