Stormwater Australia’s SQIDEP framework sets standards for the independent testing and reporting of stormwater device performance, and the Atlan BaffleBox is the latest of our generational stormwater assets to be assessed and verified through this robust testing protocol.
The Atlan BaffleBox is a high-performance Gross Pollutant Trap (GPT) that removes sediment, suspended particles, gross pollutants, TN (Total Nitrogen), TP (Total Phosphorus) and microplastics from stormwater. Water quality solutions for microplastics are growing in demand – and the BaffleBox’s ability to capture them reflects its versatility in pollution removal applications.
Ideal for retrofits and compatible with conventional drainage systems – this primary treatment system can also incorporate trash screens, booms and skimmers to suit catchment requirements.
With low maintenance overheads, reduced footprint, and ease of access for machinery and maintenance crews – the Atlan BaffleBox reduces environmental disturbance compared to alternative developments such as sediment forebays.
The device joins our SQIDEP-verified range, which includes Vortceptor, StormSack, FlowGuard, AtlanBasin, FlowFilter and the half-height and full-height AtlanFilter. The pollution removal efficiencies of the Atlan BaffleBox are now verified as follows –

A key feature of the Atlan BaffleBox is its high visibility and community awareness-raising capability – with AtlanView covers allowing the public to see pollution removal inside the device in real-time. Accompanied by educational signage, they are a powerful tool for allowing the public to learn about the benefits of stormwater treatment.
SQIDEP – Stormwater Australia’s Verification Protocol
SQIDEP was implemented by Stormwater Australia in 2018, after a 4-year development phase incorporating feedback from across the stormwater industry – including public input, stakeholder consultation and academic peer review.
This innovative framework allows confidence that stormwater devices meet their stated treatment efficiencies – supported by independent third-party testing and reporting. By providing a robust framework for device verification, SQIDEP drives best practices, environmental outcomes, and sustainability.
The Stormwater Quality Improvement Device Evaluation Protocol (SQIDEP) enhances the abilities of councils, developers, and engineers to select devices to meet environmental compliance and requisite pollution removal rates.
SQIDEP verification involves testing by independent researchers, universities and specialist stormwater consultants – who rigorously and robustly test devices and their treatment efficiencies in appropriate environments. This framework helps ensure that SQIDEP devices meet the demands of our local environments and allows ease of selection during project design phases.
Atlan Storwmater’s SQIDEP verified range ensures Joy in Water for future generations is protected – by enhancing water quality outcomes and preserving the health of our waterways. These generational stormwater assets have been reliably demonstrated and tested by independent third parties to ensure ‘clean waterways are a right, not a privilege’.