This project involved the installation of 500 EnviroModules (Approx. 55 cubic metres) to treat stormwater run-off from the building roof and pavement area of a newly constructed fire station. Brian Close of Close Consultants in Fairlight, Sydney, designed the system.

The tank was installed in a long line to capture run-off and disperse it over a broad area. Initial treatment of stormwater occurs inside the tank before water infiltrates through a layer of geotextile fabric. The water then passes through a wide section of granite rock where further treatment occurs.

The result is that clean water seeps naturally to the reserve behind the fire station and into the creek below.