Stormwater Management

The City has adopted a Stormwater Management Plan to help improve water quality in the catchment. The plan focuses on the retrofitting of traditional stormwater systems to current best management practices. This includes the decommissioning of sumps, installation of gross pollutant traps, stormwater harvesting and the implementation of water sensitive urban design. The objectives of the stormwater management plan are:
  • Protection of property from flooding 
  • Improvement of water quality throughout the catchment 
  • Removal of stormwater outlets into Mandurah waterways 
  • Retrofitting of traditional stormwater systems such as fenced sumps 
  • Retention and restoration of bushland and buffer zones around wetlands 
  • Increasing amenity of the urban form and public open space 
  • Promotion of sustainable practices in the community. 

What is Water Sensitive Urban Design?

Water sensitive urban design applies features of design into drainage and stormwater management to improve the management of the urban water cycle. It is a holistic approach that aims to improve water quality and minimise run off through protection from flooding, retention and restoration of the natural drainage system and through the reduction of pollutant discharge. Water sensitive urban design encourages water efficiency and in particular the reuse of water harvested in urban areas.

Onsite infiltration of stormwater, stormwater treatment measures and stormwater harvesting is encouraged to increase water efficiency and improve water quality.

Water sensitive urban design principles are now recognised as best management practice for stormwater management and have been widely adopted by local governments in the Peel-Harvey catchment. The City has joined other local governments in the region in adopting a water Sensitive Urban Design Local Planning Policy to ensure new development is consistent with the principles of water sensitive urban design.

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