Past projects across Victoria.

This project involved a three-unit residential development in Surf Coast Shire, with each dwelling requiring roof runoff capture, reuse, and site-wide water-quality treatment. The SWMP addressed the increase in impervious area from new dwellings, garages, shared access, pedestrian paths, and paved areas, while setting out how stormwater would be managed during both construction and operation.

The proposed strategy combined 6,000 L of rainwater tank storage across the dwellings with a 16 m² raingarden treating runoff from the shared accessway. STORM modelling returned a 104% rating, confirming the treatment train exceeded the required compliance threshold, while the detention strategy identified how post-development discharge would be controlled through detailed design.

This commercial project in Moorabool Shire included food and beverage uses, a convenience store, and a 15-space car park. The SWMP set out the drainage strategy for roof, paved, car park, and entry-path catchments, with all runoff directed through an on-site pit and pipe network before discharge to the council drainage system.

The assessment included planning-stage DRAINS modelling for detention and discharge control, adopting an 8 L/s permissible site discharge and identifying 7.0 m³ of on-site detention storage. MUSIC modelling confirmed the proposed HumeFilter treatment train achieved the required pollutant reductions, including 88.54% TSS reduction against the 80% target.

This Hume City Council project covered a 1.15 ha commercial-zoned site forming part of a wider planned subdivision. The SWMP was prepared to support the planning pathway for retail and commercial buildings, associated car parking, internal access roads, and landscaped areas, with the report structured around Clause 53.18 and Hume City Council drainage requirements.

The work included review of the Legal Point of Discharge, downstream pipe capacity, internal catchment breakdown, minor and major storm performance, and whether on-site detention was warranted. The assessment confirmed the existing downstream infrastructure had been sized for the anticipated subdivision flows, with gross pollutant controls specified at inlet pits and wider precinct treatment relied on for broader water-quality management.

This Wyndham City Council project involved a two-storey mixed-use development with shops, food and drink premises, a restricted recreation facility, at-grade car parking, and associated access infrastructure. The stormwater management memo responded to permit conditions and set out how the approved site layout would manage both stormwater quantity and quality.

The strategy included OSD4W detention sizing, a council-nominated permissible site discharge, MUSIC modelling, and a treatment train using rainwater harvesting, filter baskets, bioretention, and proprietary primary treatment. The modelling confirmed compliance with best-practice pollutant reduction targets, including 97.13% gross pollutant reduction.