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What is a Geocellular Attenuation Tank?

At Viv Construct Group, we pride ourselves on providing top-notch groundworks and landscaping services. One innovative solution we often recommend for effective stormwater management is the geocellular attenuation tank. This blog post will explain what a geocellular attenuation tank is, its benefits, and why it might be the perfect solution for your landscaping project.

Understanding Geocellular Attenuation Tanks

What is a Geocellular Attenuation Tank?

An underground structure designed to manage and control stormwater runoff. Comprising modular, lightweight plastic units, these tanks can be assembled in various configurations to store large volumes of water. The primary function is to temporarily hold excess rainwater and release it slowly into the ground or drainage system, thus mitigating flood risks and soil erosion.

How Does It Work?

The working mechanism of a geocellular attenuation tank is relatively straightforward yet highly effective:

  • Capture and Storage: During heavy rainfall, the tank captures and stores the excess water. The modular units have a high void ratio, meaning they can hold a significant volume of water relative to their size.
  • Slow Release: The stored water is then gradually released through a controlled outlet. This slow release helps prevent overwhelming the local drainage system and reduces the risk of flooding.
  • Modular Design: The modular design allows for customization based on specific project requirements, making it suitable for various sizes and types of spaces.

Benefits of Geocellular Attenuation Tanks

Efficient Stormwater Management

Highly effective in managing stormwater. They help reduce surface runoff, mitigate flood risks, and maintain the natural water balance in the environment.

Space-Saving Solution

Installed underground, these tanks save valuable surface space. This feature is particularly beneficial in urban areas where space is at a premium, allowing for more flexible landscaping and construction planning.

Environmental Sustainability

By promoting groundwater recharge, geocellular tanks support sustainable water management practices. The stored water slowly infiltrates into the ground, maintaining local water tables and benefiting the ecosystem.


Geocellular attenuation tanks are versatile and can be used in various settings, including residential gardens, commercial properties, and public parks. They are suitable for both small-scale and large-scale projects.


Although the initial investment might be higher compared to traditional drainage solutions, the long-term benefits and reduced maintenance costs make geocellular attenuation tanks a cost-effective option. Their durability and efficiency lead to significant savings over time.

Applications of Geocellular Attenuation Tanks

Residential Properties

Homeowners can benefit from geocellular attenuation tanks to manage stormwater runoff from roofs, driveways, and patios. These tanks help prevent flooding and erosion, protecting the property and maintaining its aesthetic appeal.

Commercial Developments

In commercial settings, effective stormwater management is crucial for compliance with local regulations and protecting the site’s integrity. Geocellular tanks can be installed under car parks, green spaces, and other areas to manage runoff and support sustainable development practices.

Public Parks and Recreational Areas

These tanks are ideal for public parks and recreational areas, where managing large volumes of stormwater is essential to maintaining safe and usable spaces for the community. They can be integrated into the landscape without disrupting the visual appeal or functionality of the area.

Maintenance and Longevity

Regular Inspections

Regular inspections ensure the continued efficiency of a geocellular attenuation tank. Checking for blockages, damage, or sediment buildup is crucial for optimal performance.

Cleaning and Repairs

While designed for minimal maintenance, occasional cleaning and repairs may be necessary. Flushing the system to remove accumulated debris and repairing any damaged components will maintain functionality.


With proper installation and maintenance, geocellular attenuation tanks can provide effective stormwater management for many years. Their durable construction and resistance to environmental factors make them a reliable long-term solution.


Geocellular attenuation tanks offer an efficient, versatile, and environmentally friendly solution for managing stormwater in landscaping projects. Whether enhancing a residential garden, commercial property, or public park, these systems provide numerous benefits, from effective water management to environmental sustainability.

For more information on our services and to discuss your landscaping project, contact Viv Construct Group today.