- Removal of dredging and sediment
- Protection screen repair
- Inspection and repair of the wastewater system
- Cleaning and repairing garbage rake
- Cleaning and repair of house inspection of machines, pumps, and turbines
- Diving in hazardous waste
- Underwater confined space access for inspection and repair
- Removal of purifier debris, cooling towers, raw water inlet structure and reservoirs
- Support the construction of desalination plants and thermal power plants
