As cities expand, the proliferation of impervious surfaces reduces the ability of rainfall to infiltrate in urban areas. Natural infiltration areas and green spaces, such as wetlands, swamps, forests, and grasslands, are decreasing, which results in higher volumes of surface runoff.
Surface runoff is the excess that runs off the ground because our urban environment is unable to soak and absorb it.
On-site Stormwater Detention (OSD) tanks temporarily store, also known as detain, these peak flows during storm events and gradually release them. This temporary storage effectively manages high-volume stormwater flows, preventing local flooding and overwhelmed drainage systems.
Detention tanks provide a storage buffer. Their large detention capacity slows surface runoff from nearby impervious surfaces such as driveways, pavement, hardstand, and car parks. They prevent excess water from pooling on the site surface by providing large volumes of void space for detention.
This infrastructure is designed to meet the increasing demands of urban growth. Detention systems, such as precast concrete OSD tanks, protect local property, reduce community risk, and futureproof development.
OSD tanks are a compliance requirement on many projects. These include commercial, industrial, residential and infrastructure applications. Detention assets prevent damage to public infrastructure, supplement existing drainage systems, and improve public safety.
Atlan Stormwater provides a comprehensive range of locally manufactured detention products. This includes modular plastic chambers (AtlanChamber), concrete tanks (AtlanVault, MegaVault), HDPE pipes (AtlanFlow), and geocellular systems (AtlanCube). We design, manufacture, install and maintain complete stormwater detention systems to help you find solutions to your water quantity challenges.
