Approval of proprietary stormwater treatment devices

From 1 June 2023 the City commenced a position in accordance with Council resolution G20.0618.018 (18 June, 2020) whereby only Stormwater Australia SQIDEP-certified proprietary stormwater treatment devices would be considered for use on development sites.

For applications considered properly made before 1 June 2023, the City has accepted proposals which include proprietary treatment devices that have been submitted to Stormwater Australia for SQIDEP evaluation but have not yet been certified.

To this end, the following requirements will be included for applications considered properly made before 1 June 2023. The updated requirements will be reflected on development approval conditions. The changes are summarised as follows:

• monitoring in lieu of receiving SQIDEP certification is no longer supported
• certification or endorsement letter from Stormwater Australia must be submitted to the City prior to issue of a development approval for Building works
• If a SQIDEP-approved device results in lower pollutant removal rates than modelled for in the development application, the applicant must provide supplementary treatment measures to meet the City Plan stormwater quality objectives.

If certification is not able to be achieved for the nominated device within a timeframe suitable for applicants, an alternate and currently approved device is required to replace it. To facilitate this, a change application may be required. Applicants are encouraged to contact City officers to discuss options.

For development applications lodged on or after 1 June 2023 the City requires that developments utilise Stormwater Australia SQIDEP-certified proprietary stormwater treatment devices.