- Overall management of office administration
- General affairs, personnel, security, service, reward and punishment, payment
- Matters regarding budget and accounting
- Matters regarding management of goods
- Other matters not pertaining to other department
- Matters regarding delinquency disposition
- Improvements of billing system and revenue management
- Adjustment and resolution of waterworks revenues
- Civil affairs regarding leaks in the building
- Operation and management of integrated waterworks information
- Management of waterworks GIS
- Design and construction of new distribution and supply pipes
- Establishment of water supply measures and plans
- Matters regarding leak restoration
- Customer service regarding bad outflow, valve break and meter leak, etc.
- Replacement of water meters (expired, broken)
- Replacement of old pipes, supply and distribution pipes (supply clean water)
