Within the discipline of Water Management, AP&G provides a range of services related to surface water including:

• Storm water management
• Sewer systems design
• Water supply systems
• Water balance
• Optimization of water usage
• Water resource studies and harvesting
• Erosion and Sediment Control
• Modelling
• Monitoring

State of the art dynamic models are used for the engineering, calculations and design works. The dynamic model performs hydraulic calculations based on a precipitation event or a series of precipitations. With this design approach, the bottlenecks in the sewer and surface water system can be determined in order to implement adequate solutions.