Decentralised stormwater treatment devices are designed to manage stormwater flows locally or ‘at-source’. This approach provides a cost-effective, low-impact alternative to larger central installations of stormwater treatment and conveyance infrastructure.
These devices can be distributed across urban catchments to manage incoming flows before they combine and require capacity for treating higher flow rates. Decentralised stormwater treatment devices manage runoff at a local level and are strategically placed throughout a catchment to capture and treat stormwater before pollutants are conveyed downstream.
This allows integration of stormwater treatment into a wide range of developments – including residential developments, commercial precincts, industrial sites, and public spaces. Common locations for installation include roof outlets, driveways, car parks, and kerbs.
The compact footprint of at-source treatment devices allows them to be retrofitted into existing developments or deployed in existing site features like driveways, without requiring large areas of dedicated land.
Decentralised Solutions: SQIDEP & Water Sensistive Urban Design (WSUD)
Part of our SQIDEP-verified range, FlowGuard and AtlanTrap are two examples of decentralised stormwater treatment solutions.
Aligning with Water Sensitive Urban Design (WSUD) and Low Impact Development (LID) strategies, these devices are deployed in strip drains, stormwater pits, catch basins, and kerb inlets – allowing the cost-effective treatment of gross pollutants, sediment, and nutrients before they pass to underground drainage networks.
Decentralised stormwater devices enable early interception of stormwater pollution, thereby reducing pollutant loads reaching downstream devices and drainage systems. They also integrate with WSUD best management practices (BMP), providing design functionality for placement in larger treatment trains.
At-source stormwater assets are easily maintained with easy access for service technicians through grated inlets at the site surface. This allows them to be cleaned directly with reduced personnel and equipment requirements.
