Atlan Stormwater Detention Tanks

During peak rain events, on-site Stormwater Detention (OSD) helps to slow stormwater runoff from developed areas – an essential flood mitigation strategy. Impervious surfaces and reduced infiltration are characteristic of urban development, and these cause stormwater to pool and increase flood risk.

Modelling sites to meet the demands of increased stormwater runoff ensures the on-site capacity to capture storm water in underground detention assets. The design of Atlan Onsite Stormwater Detention Tanks allows them to capture peak flow run-off volumes during storm events and slowly let them go once the heavy rainfall period has passed. 

Which On-Site Stormwater Detention system works best?

At Atlan Stormwater we pride ourselves on the level of expertise we offer clients, and our broad range of OSD tank solutions to meet flood mitigation development guidelines and on-site detention requirements.

Breadth of Product Offering

Our clients benefit from Atlan Stormwater’s broad range of stormwater detention assets. Atlan’s breadth and depth of experience in the detention market enable clients to be offered optimal solutions.

Our local precast concrete manufacturing facilities provide flexibility in product delivery and ensure each stormwater system can meet your specific on-site needs. We fabricate and design detention configurations that are the best fit for your site’s detention volume with consideration for all on-site requirements.

Combined Detention & Filtration Solutions

DA stormwater detention requirements are often accompanied by water quality objectives and environmental compliance. As a recognised leader in the supply of council-approved Stormwater Filtration equipment, we ensure the design of our OSD tanks are optimally combined with tertiary filtration for function, ease of maintenance and investment.

Types of Stormwater Detention

A high strength modular precast concrete system delivered to site cured to 50MPa. Simple and fast to install, and truck trafficable

A modular precast detention system that has the proven strength & durability of concrete. Suitable for medium to large stormwater detention scenarios.

An open bottomed, high-density polyethylene infiltration chamber for subsurface retention or detention of stormwater run off.

An FRP tank manufactured to handle substances including water, sewage, farm effluent, petroleum products and chemicals.

BROWSE OUR RANGE On-Site Stormwater Detention Systems

  • AtlanVault

  • AtlanVault

    AtlanVault is a robust, modular water quantity solution for on-site stormwater detention tank requirements and stormwater harvesting. Suitable for subsurface installation under car parks in commercial premises, hardstand or common driveways in multi-unit developments.

  • MegaVault©

  • MegaVault

    Ideal for high volume configurations, this modular on-site stormwater detention tank (OSD tank) and stormwater harvesting system is designed for high-capacity storage and trafficability. Engineered to maximise safety-in-design with respect to manufacture, installation and life-cycle maintenance.

  • AtlanCube

  • AtlanCube

    The AtlanCube is a modular cube, underground tank on-site detention system that is suited to detention, retention, reuse and infiltration applications – designed for installation as a series of interconnected HDPE cube modules.

  • AtlanChamber

  • AtlanChamber

    A modular, open bottomed, high-density polyethylene infiltration chamber system for subsurface retention (stormwater harvesting) and detention (OSD) of stormwater runoff. AtlanChamber is a highly scalable and versatile system, available in a range of arch sizes to suit your project requirements.

  • TankStor©

  • Tankstor

    TankStor

    TankStor is our locally manufactured, fibreglass storage system – designed to handle a range of substances including water, sewage, farm effluent, petroleum products and chemicals. Suitable for installation to meet stormwater harvesting and attenuation scenarios.

AtlanVault

AtlanVault is a robust, modular water quantity solution for on-site stormwater detention tank requirements and stormwater harvesting. Suitable for subsurface installation under car parks in commercial premises, hardstand or common driveways in multi-unit developments.

MegaVault

Ideal for high volume configurations, this modular on-site stormwater detention tank (OSD tank) and stormwater harvesting system is designed for high-capacity storage and trafficability. Engineered to maximise safety-in-design with respect to manufacture, installation and life-cycle maintenance.

AtlanCube

The AtlanCube is a modular cube, underground tank on-site detention system that is suited to detention, retention, reuse and infiltration applications – designed for installation as a series of interconnected HDPE cube modules.

AtlanChamber

A modular, open bottomed, high-density polyethylene infiltration chamber system for subsurface retention (stormwater harvesting) and detention (OSD) of stormwater runoff. AtlanChamber is a highly scalable and versatile system, available in a range of arch sizes to suit your project requirements.

Tankstor

TankStor

TankStor is our locally manufactured, fibreglass storage system – designed to handle a range of substances including water, sewage, farm effluent, petroleum products and chemicals. Suitable for installation to meet stormwater harvesting and attenuation scenarios.

Stormwater Detention Tanks

Case studies, webinars, projects and media.

Stormwater Detention FAQ

On-site detention tanks are designed to manage excess runoff by temporarily storing stormwater during peak rain events. By controlling the flow rate of water into the local Council drainage system, these tanks help prevent flooding in residential areas, ensuring that stormwater is released gradually rather than overwhelming the local infrastructure.

Yes, all of Atlan’s stormwater detention solutions are engineered to a modular design format for cost efficiency, less material usage, and faster installation times than alternative stormwater detention systems. These benefits translate to lower overall project costs while ensuring high-quality, durable stormwater management solutions.
Atlan Stormwater offers a broad range of stormwater detention assets with flexibility in design and installation. Our tanks can be customised in terms of size, shape, and material to suit specific site requirements, ensuring optimal performance and compliance with local regulations and development guidelines.

Yes, our stormwater detention systems can be integrated with tertiary filtration solutions such as AtlanFilter cartridge systems to meet environmental compliance and water quality objectives. This combination helps in reducing water pollution by filtering out contaminants before the water is released back into the environment or reused.

MUSIC (Model for Urban Stormwater Improvement Conceptualisation) is a valuable tool for optimising stormwater detention solutions. For our stormwater detention systems, MUSIC models can be accessed for different councils and regions throughout Australia by downloading them from our website.

Stormwater detention involves temporarily holding stormwater runoff in on-site detention tanks or stormwater tanks to slowly release it into subsequent infiltration areas or a drainage system after a heavy rainfall event. This process helps prevent flooding by managing excess runoff. 

Stormwater retention, also known as stormwater harvesting, involves capturing and holding stormwater in a retention tank for reuse – increasing sustainability and water efficiency. Stormwater retention allows stormwater to be reused on site, with common uses including watering gardens and flushing toilets. 

Stormwater detention tanks are commonly required for commercial developments, industrial estates, multi-unit residential areas, and large infrastructure projects. These tanks are essential in areas with significant impervious surfaces where natural infiltration is reduced, necessitating engineered solutions to manage stormwater runoff.
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