Drainage Collection
Stormwater is typically collected from:
- natural catchments;
- roof and site runoff from buildings; and
- streets and other flat surfaces such as car parks.
Stormwater is directed into drains, which can be in the form of pipes, open channels, streams and creeks. Drainage water flows into compensating or detention basins, where it soaks into the ground. This recharges groundwater in local areas. Due to the fact that Perth has sandy soils, opportunities to recharge groundwater are maximised through our drainage systems.



